A bone-meat separator includes a chassis, a driving mechanism, a transmission shaft, a spiral shaft, a feed hopper, a pressurization portion and a bone-meat separation portion. In this design, a separation spiral shaft portion is a conical spiral shaft; the bone-meat separation portion is a conical component coaxially sheathed on the periphery of the separation spiral shaft portion, and an inner wall of the bone-meat separation portion is in clearance fit with an outer wall of the separation spiral shaft portion. With regard to the bone-meat separator, since the inner wall of the bone-meat separation portion and the outer wall of the spiral shaft are always in a stable clearance fit state, the service life is improved.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a national phase of PCT/CN2017/077672, filed on Mar. 22, 2017, titled “BONE-MEAT SEPARATOR”, the entire content of which is incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to foodstuff processing machines and, in particular, to a bone-meat separator.

BACKGROUND

At present, the raw materials to be separated by bone-meat separators are mainly poultry's necks and deboned skeletons. After meat is preliminarily collected from these raw materials, there will also be a large amount of meat on these raw materials. Since the manual collection is inconvenient, low in efficiency and high in cost, in order to collect meat on these low-cost raw materials, bone-meat separators are produced. The bone-meat separators separate bone from meat by crushing and extruding, so both time and labor are saved and higher economic benefits can be thus obtained. However, since separation portions of the existing bone-meat separators are easily worn, the bone-meat separation effect becomes poor and better and stable bone-meat separation effect cannot be maintained. Moreover, since the separation portion is heavy, it is inconvenient to replace the separation portion and the service life of the bone-meat separator is thus decreased.

SUMMARY

An objective of the present invention is to provide a bone-meat separator in order to solve the problems in the prior art, so that better bone-meat separation effect can be realized and the service life of the bone-meat separator can be increased.

For this purpose, the present invention provides the following solutions.

A bone-meat separator is provided, including a chassis, a driving mechanism, a transmission shaft, a spiral shaft, a feed hopper, a pressurization portion and a bone-meat separation portion, wherein the feed hopper is arranged on the chassis; an outlet of the feed hopper is communicated with an inlet of the pressurization portion, and an outlet of the pressurization portion is communicated with an inlet of the bone-meat separation portion; one end of the transmission shaft is connected to an output end of the driving mechanism, and one end of the spiral shaft is sheathed on the other end of the transmission shaft and is movable relative to the transmission shaft; the spiral shaft includes a feeding spiral shaft portion located below the feed hopper, a pressurization spiral shaft portion located within the pressurization portion and a separation spiral shaft portion located within the bone-meat separation portion; the separation spiral shaft portion is a conical spiral shaft; the bone-meat separation portion is a conical component coaxially sheathed on the periphery of the separation spiral shaft portion, and an inner wall of the bone-meat separation portion is in clearance fit with an outer wall of the separation spiral shaft portion; larger ends of both the separation spiral shaft portion and the bone-meat separation portion are ends close to the pressurization portion; meat discharge gaps are provided on a side wall of the end of the bone-meat separation portion close to the pressurization portion; a control valve is provided inside the bone-meat separation portion and sheathed on the periphery of a front end of the separation spiral shaft portion, and a residue discharge gap is provided between the control valve and the front end of the separation spiral shaft portion; a residue outlet is provided on a side wall of the bone-meat separation portion in front of the control valve; the spiral shaft is a hollow spiral shaft within which an adjustment lever is provided; a connector is internally fixed at one end of the spiral shaft connected to the transmission shaft; and, one end of the adjustment lever is in threaded connection to the connector, while the other end thereof extends out from the spiral shaft and then into the bone-meat separation portion.

Preferably, an adjustment lever locknut is provided at one end of the adjustment lever extending out from the spiral shaft, an annular groove is provided on an outer wall of the adjustment lever locknut, and a nylon sleeve annularly sheathed on the periphery of the adjustment lever is sheathed in a middle portion of the spiral shaft.

Preferably, the separation spiral shaft portion includes a first shaft, a second shaft, a conical sleeve and a separation spiral; the second shaft is connected to the pressurization spiral shaft portion, the separation spiral is arranged on the periphery of the second shaft, and the second shaft is in key connection to the separation spiral; all the first shaft, the second shaft, the pressurization spiral shaft portion and the feeding spiral shaft portion are formed integrally; the separation spiral is conical, and the larger end of the separation spiral is an end close to the pressurization spiral shaft portion; and elongated bumps each having a semicircular cross-section are axially provided on an outer surface of a spiral groove of the separation spiral between blades;the conical sleeve is arranged on a side close to a smaller end of the separation spiral, located on the periphery of the second shaft and in key connection to the second shaft, and the conical sleeve is locked by conical sleeve locknuts;the control valve is arranged on the periphery of the conical sleeve, and an inner conical surface fitted with the conical sleeve is provided on an inner wall of the control valve, the residue discharge gap is provided between the outer wall of the conical sleeve and the inner conical surface of the control valve, several residue guide grooves are uniformly distributed on a side wall of the conical sleeve in a circumferential direction of the conical sleeve, and a lengthwise direction of each of the residue guide grooves is in an axial direction of the conical sleeve; andthe first shaft is a conical shaft, and the larger end of the first shaft is an end connected to the second shaft.

Preferably, the pressurization portion includes a high pressure chamber, a spiral rifling is provided on an inner wall of the high pressure chamber, and the high pressure chamber is arranged on the chassis and communicated with the outlet of the feed hopper; and the bone-meat separation portion includes a filter cylinder frame and a separation cylinder; the separation cylinder is a conical cylinder coaxial with the spiral shaft, and the larger end of the separation cylinder is an end close to the high pressure chamber; the filter cylinder frame is a conical cylinder coaxial with the spiral shaft, meat outlets are provided on the filter cylinder frame, and the larger end of the filter cylinder frame is connected to an end face of the outlet of the high pressure chamber; the separation cylinder is nested in the filter cylinder frame; the separation cylinder is sheathed on the periphery of the separation spiral shaft portion and in clearance fit with the separation spiral shaft portion; a plurality of meat discharge gaps are provided on the separation cylinder, and the meat discharge gaps are arranged in a lengthwise direction along the axial direction of the separation cylinder and extend from the larger end to the smaller end of the separation cylinder; and, annular reinforcing ribs are provided on the outer wall of the separation cylinder.

Preferably, the depth direction of the meat discharge gaps is inclined and offset from a radial direction of the separation cylinder, and the direction of inclination is the same as a rotation direction of the spiral shaft; and, the width of the meat discharge gaps gradually becomes larger from the inner wall to the outer wall of the separation cylinder.

Preferably, the bone-meat separation portion further includes a flange, a control valve braking block, a front frame, a front gland and a sliding sleeve; the flange is clamped with the filter cylinder frame through a clamping disc; the front frame is a hollow frame, a residue outlet is provided on the bottom of the front frame, and one end of the front frame is connected to the flange while the other end is connected to the front gland; and the sliding sleeve is arranged inside a bearing within the front frame and the front gland, the first shaft is in key connection to the sliding sleeve, and a number of grooves are provided on an outer wall of the sliding sleeve; an outer wall of one end of the control valve is in threaded connection to an inner wall of the flange, while gear teeth are provided on an outer wall of the other end of the control valve; the control valve is engaged with a gear shaft through the gear teeth; a ratchet wrench is provided on the gear shaft; the gear shaft is mounted on the front frame and is rotatable on the front frame; the rotation of the ratchet wrench can drive the rotation of the gear shaft so that the control valve is allowed to rotate relative to the flange to generate a displacement; and, the control valve braking block is mounted on the front frame through a pin shaft, and the control valve braking block can be jammed on the gear teeth of the control valve exposed out from the front frame.

Preferably, the bone-meat separation portion further includes a shield with an opening formed on the bottom thereof; the shield is mounted on the control valve through a compression ring; a pointer is fixedly mounted on the shield, a pointer opening having a width matched with the width of the pointer is formed on the front frame in the axial direction, and the pointer extends into and out from the pointer opening; and, a scale is provided on a side wall of the periphery of the front frame where the pointer opening is formed.

Preferably, the bone-meat separator further includes an swing-type lifter frame; the swing-type lifter frame includes a lifter mount, a front swing arm, a rear swing arm and a lifter support; the lifter mount is arranged on the outer wall of the top of the front frame; the lifter support is arranged on the outer wall of the high pressure chamber; a sliding shaft passes through the lifter mount, a lifter shield is connected to the sliding shaft, and a lower end of the lifter shield is sheathed on the sliding shaft; one end of the front swing arm is connected to the lifter shield through a lifter adjusting bolt; a lifter adjusting nut is provided outside the lifter adjusting bolt above the front swing arm, and a lifter protection cover is provided on the top of the lifter adjusting bolt; the lifter adjusting bolt can move up and down by rotating the lifter adjusting nut; the other end of the front swing arm is connected to one end of the rear swing arm through a middle spindle, while the other end of the rear swing arm is connected to the lifter support through a rear spindle; and, a lifter limiting pin is provided on the lifter support.

Preferably, a partition ring is provided inside the filter cylinder frame; an inner wall of the partition ring comes into contact with the outer wall of the separation cylinder to partition the filter cylinder frame into a first frame and a second frame; meat outlets are provided on both the first frame and the second frame; a first isolation hood is sheathed outside the first frame, and/or a second isolation hood is sheathed outside the second frame; a pipe port is provided on the first insulation hood and/or the second isolation hood; fixed plates each having an opening formed on its bottom are provided on the first insulation hood and/or the second isolation hood, and the first insulation hood and/or the second isolation hood is fastened on the filter cylinder frame through a fastening component; the fastening component includes a fastening mount, a fastening connecting plate and a fastening locking screw; the fastening mount is arranged on the high pressure chamber; two ends of the fastening connecting plate are connected to the fastening mount and the clamping disc through pin shafts, respectively; one end of the fastening locking screw is connected to the fastening mount through a pin shaft; a first fastening locknut and/or a second fastening locknut is provided on the fastening locking screw; and, the locking screw passes through the fixed plates and is then locked by the first fastening locknut and/or the second fastening locknut.

Preferably, the feed hopper is located above the spiral shaft and provided with a first spiral crushing shaft and a second spiral crushing shaft which rotate together in opposite directions, and several guide strips are provided between the bottom of the feed hopper and the spiral shaft; and the driving mechanism includes a motor, a belt, a first pulley, a second pulley and a speed reducer; an output shaft of the motor is connected to the first pulley; the first pulley is connected to the second pulley through the belt, and the second pulley is connected to an input shaft of the speed reducer; an output shaft of the speed reducer is connected to the transmission shaft through a coupler; a first chain wheel is provided on the coupler; a second chain wheel and a first gear are provided on the first spiral crushing shaft; the first chain wheel is connected to the second chain wheel through a chain; a second gear is provided on the second spiral crushing shaft; the first gear is engaged with the second gear; the transmission shaft is arranged on a bearing seat; and, a sewage outlet is provided on an end face of an end of the bearing seat close to the feed hopper.

In the present invention, since the separation spiral shaft portion is a conical spiral shaft and the bone-meat separation portion is designed as a conical component coaxially sheathed on the periphery of the separation spiral shaft portion, after the spiral shaft is worn, the gap between the spiral shaft and the bone-meat separation portion may be adjusted by adjusting the axial displacement of the spiral shaft, so that the inner wall of the bone-meat separation portion and the outer wall of the spiral shaft are always in a stable clearance fit state. Accordingly, the bone-meat separator can always maintain better bone-meat separation effect and have higher meat-bone separation efficiency, and the service life of the bone-meat separator is increased.

Meanwhile, on one hand, the hollow spiral shaft can reduce the weight of the spiral shaft and is easy to hold; and on the other hand, since spiral blades are wound around the outer circumference of the spiral shaft and the shaft is easily bent and deformed after welding, the hollow spiral shaft can increase the rigidity of the shaft and relieve the bending.

During the adjustment of the axial displacement of the spiral shaft, since the tail end of the adjustment lever is in threaded connection to the connector, a relative displacement is generated between the adjustment lever and the connector by rotating the adjustment lever, so that the tail end of the adjustment lever contacts the front end of the transmission shaft. By further rotating the adjustment lever, the adjustment lever resists against the transmission shaft, so that a relative replacement is generated between the connector and the adjustment lever and the connector thus drives the spiral shaft to move relative to the transmission shaft. As a result, the axial displacement of the spiral shaft is adjusted. Accordingly, the gap between the outer wall of the spiral shaft and the inner wall of the bone-meat separation portion may be maintained, better bone-meat separation effect is realized, and the service life of the bone-meat separator is also increased.

REFERENCE LIST

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the embodiments described herein are merely a part but not all the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art without any creative effort on the basis of the embodiments in the present invention shall fall into the protection scope of the present invention.

An objective of the present invention is to provide a bone-meat separator in order to solve the problems in the prior art, so that better bone-meat separation effect can be realized and the service life of the bone-meat separator can be increased.

To make the objectives, features and advantages of the present invention more obvious and comprehensible, the present invention will be further described below in detail by specific implementations with reference to the accompanying drawings.

This embodiment provides a bone-meat separator, as shown inFIG. 1, including a chassis1, a driving mechanism, a transmission shaft2, a spiral shaft3, a feed hopper4, a pressurization portion5and a bone-meat separation portion6. The feed hopper4is arranged on the chassis1, an outlet of the feed hopper4is communicated with an inlet of the pressurization portion5, and an outlet of the pressurization portion5is communicated with an inlet of the bone-meat separation portion6. One end of the transmission shaft2is connected to an output end of the driving mechanism, and one end of the spiral shaft3is sheathed on the other end of the transmission shaft2and is movable relative to the transmission shaft2. In this embodiment, an internal triangular hole is provided at one end of the spiral shaft3, and an external triangular hole matched with the internal triangular hole is provided at one end of the transmission shaft2connected to the spiral shaft3. The spiral shaft3includes a feeding spiral shaft portion located below the feed hopper4, a pressurization spiral shaft portion located within the pressurization portion5and a separation spiral shaft portion located within the bone-meat separation portion6. The separation spiral shaft portion is a conical spiral shaft. The bone-meat separation portion6is a conical component coaxially sheathed on the periphery of the separation spiral shaft portion, and an inner wall of the bone-meat separation portion6is in clearance fit with an outer wall of the separation spiral shaft portion. Larger ends of both the separation spiral shaft portion and the bone-meat separation portion6are ends close to the pressurization portion5. Meat discharge gaps are provided on a side wall of the end of the bone-meat separation portion6close to the pressurization portion5. A control valve7is provided inside the bone-meat separation portion6and sheathed on the periphery of a front end of the separation spiral shaft portion, and a residue discharge gap is provided between the control valve7and the front end of the separation spiral shaft portion. A residue outlet is provided on a side wall of the bone-meat separation portion6in front of the control valve7. As shown inFIG. 2, the spiral shaft3is a hollow spiral shaft within which an adjustment lever8is provided. A connector9as shown inFIGS. 5 and 6is internally fixed at one end of the spiral shaft3connected to the transmission shaft2. One end of the adjustment lever8is in threaded connection to the connector9, while the other end thereof extends out from the spiral shaft3and then into the bone-meat separation portion6.

When in use of the bone-meat separator of the present invention, a material to be separated is fed from the feed hopper4. After the material is fed into the feed hopper4, the spiral shaft3conveys and crushes the material. After the material is conveyed to the pressurization portion5, due to the reduced space for the movement of the material and the squeezing action of the material during the conveying, the pressure in the pressurization portion5becomes larger, and the material is crushed into meat cubes and bone dregs within the pressurization portion5. The crushed material is continuously conveyed to the bone-meat separation portion6and then further crushed. Since the size of the bone dregs is larger than the size of the meat cubes, the material will be filtered and separated in the bone-meat separation portion6, so that the meat cubes of a smaller size are filtered out from the bone-meat separation portion6and then discharged from the meat discharge gaps, and the bone dregs in the bone-meat separation portion6are conveyed from the spiral shaft3to the front end of the separation spiral shaft portion and then discharged from the residue discharge gap between the front end of the separation spiral shaft portion and the control valve7. During the bone-meat separation process, the spiral shaft3will generate collision and friction with the material, and the spiral shaft3will also generate friction with the inner wall of the bone-meat separation portion6. After the long-term operation, the blades of the spiral shaft3will be worn, and the gap between the spiral shaft3and the bone-meat separation portion6will thus become larger. Therefore, the worn part of the blades of the spiral shaft3needs to be repaired regularly, and the bone-meat separation effect will be influenced if the spiral shaft3is not replaced. However, it is difficult and costly to replace the spiral shaft, and the service life of the spiral shaft3is reduced.

In the present invention, since the separation spiral shaft portion is a conical spiral shaft and the bone-meat separation portion6is designed as a conical component coaxially sheathed on the periphery of the separation spiral shaft portion, after the spiral shaft3is worn, the gap between the spiral shaft3and the bone-meat separation portion6may be adjusted by adjusting the axial displacement of the spiral shaft3, so that the inner wall of the bone-meat separation portion6and the outer wall of the spiral shaft3are always in a stable clearance fit state. Accordingly, the bone-meat separator can always maintain better bone-meat separation effect and have higher meat-bone separation efficiency, and the service life of the bone-meat separator is increased.

Meanwhile, on one hand, the hollow spiral shaft3can reduce the weight of the spiral shaft and is easy to hold; and on the other hand, since spiral blades are wound around the outer circumference of the spiral shaft3and the shaft is easily bent and deformed after welding, the hollow spiral shaft can increase the rigidity of the shaft and relieve the bending.

During the adjustment of the axial displacement of the spiral shaft3, since the tail end of the adjustment lever8is in threaded connection to the connector9, a relative displacement is generated between the adjustment lever8and the connector9by rotating the adjustment lever8, so that the tail end of the adjustment lever8contacts the front end of the transmission shaft2. By further rotating the adjustment lever8, the adjustment lever8resists against the transmission shaft2, so that a relative replacement is generated between the connector9and the adjustment lever8and the connector9thus drives the spiral shaft3to move relative to the transmission shaft2. In this way, the axial displacement of the spiral shaft3is adjusted. Accordingly, the gap between the outer wall of the spiral shaft3and the inner wall of the bone-meat separation portion6may be maintained, better bone-meat separation effect is realized, and the service life of the bone-meat separator is also increased.

In this embodiment, an adjustment lever locknut10is provided at one end of the adjustment lever8extending out from the spiral shaft3; an annular groove is provided on an outer wall of the adjustment lever locknut10; a nylon sleeve71annularly sheathed on the periphery of the adjustment lever is sheathed in a middle portion of the spiral shaft; and, an inner wall of the nylon sleeve71is in clearance fit with an outer wall of the adjustment lever8in order to support the adjustment lever8and prevent the shaking of the adjustment lever8.

During the adjustment of the axial displacement of the spiral shaft3, the adjustment lever locknut10is unscrewed first, and the adjustment lever8is rotated. After the axial displacement of the adjustment lever8is adjusted, the position of the spiral shaft3may be locked by screwing the adjustment lever locknut10, and the gap between the outer wall of the spiral shaft3and the inner wall of the bone-meat separation portion6is thus locked. By providing an annular groove on the outer wall of the adjustment lever locknut10, the friction when screwing the adjustment lever locknut10is increased.

As shown inFIG. 2, the separation spiral shaft portion includes a first shaft11, a second shaft12, a conical sleeve13and a separation spiral14. The second shaft12is connected to the pressurization spiral shaft portion, the separation spiral14is arranged on the periphery of the second shaft12, and the second shaft12is in key connection to the separation spiral14. All the first shaft11, the second shaft12, the pressurization spiral shaft portion and the feeding spiral shaft portion are formed integrally. The separation spiral14is conical, and the larger end of the separation spiral14is an end close to the pressurization spiral shaft portion. As shown inFIG. 7, elongated bumps72each having a semicircular cross-section are axially and uniformly distributed on an outer surface of a spiral groove of the separation spiral between blades. These elongated bumps72can increase the flowability of the material during the rotation, and the separation rate is thus improved.

The conical sleeve13is arranged on a side close to a smaller end of the separation spiral14, located on the periphery of the second shaft12and in key connection to the second shaft12, and the conical sleeve13is locked by conical sleeve locknuts15.

The control valve7is arranged on the periphery of the conical sleeve13, and an inner conical surface fitted with the conical sleeve13is provided on an inner wall of the control valve7. The residue discharge gap is provided between the outer wall of the conical sleeve13and the inner conical surface of the control valve7. As shown inFIGS. 3 and 4, several residue guide grooves16are uniformly distributed on a side wall of the conical sleeve13in a circumferential direction of the conical sleeve.

The first shaft11is a conical shaft, and the larger end of the first shaft11is an end connected to the second shaft12.

As a conveying and crushing shaft, the spiral shaft3of the bone-meat separator is an easily-worn component, particularly the separation spiral shaft portion, which needs to be repaired after long-term use. Moreover, due to its heavy weight, it is convenient to assemble or disassemble the spiral shaft3. With regard to the separation spiral shaft portion of the present invention, since the separation shaft is sheathed outside the second shaft12, the separation spiral14may be separately disassembled and replaced after it has been worn, and it is unnecessary to replace the whole spiral shaft3. In the separated form, it is convenient for replacement and maintenance, the working efficiency is improved, and it is convenient to use.

Since all the first shaft11, the second shaft12, the pressurization spiral shaft portion and the feeding spiral shaft portion are formed integrally, the rigidity of the spiral shaft3may be ensured in the integral shaft form and the spiral shaft3is less likely to bend and deform.

Since the bone dregs are discharged from the residue discharge gap between the conical sleeve13at the smaller end of the spiral shaft3and the control valve7, the conical sleeve13is also an easily-worn component. By separating the conical sleeve from the spiral shaft3and locking the conical sleeve by two conical sleeve locknuts15, it is convenient to replace the conical sleeve.

Several residue guide grooves16are uniformly distributed on a side wall of the conical sleeve13in a circumferential direction of the conical sleeve, and a lengthwise direction of each of the residue guide grooves16is in an axial direction of the conical sleeve13. As shown inFIGS. 3 and 4, in this embodiment, the residue guide grooves16are preferably designed as grooves having a certain angle of inclination and a leftward direction of rotation. When the bone-meat separator operates, the residue discharge gap between the conical sleeve13and the control valve7is used for discharging bone dregs. However, the bone dregs are different in size, and large bone dregs cannot be discharged from a small gap. This deficiency may be overcome by the residue guide grooves16. The residue guide grooves16having an angle of inclination and a leftward direction of rotation will facilitate the smooth discharge of the bone dregs and will not hinder the bone dregs. Since the whole conical sleeve13is hardened to enhance the hardness and wear performance of its material, the service life is increased.

The pressurization portion5includes a high-pressure chamber17, a spiral rifling is provided on an inner wall of the high-pressure chamber17, and the high-pressure chamber17is arranged on the chassis1and communicated with the outlet of the feed hopper4.

As shown inFIGS. 1, 10 and 14, the bone-meat separation portion6includes a filter cylinder frame18and a separation cylinder19. The separation cylinder19is a conical cylinder coaxial with the spiral shaft3, and the larger end of the separation cylinder19is an end close to the high-pressure chamber17. The filter cylinder frame18is a conical cylinder coaxial with the spiral shaft3, meat outlets are provided on the filter cylinder frame18, and the larger end of the filter cylinder frame18is connected to an end face of the outlet of the high-pressure chamber17. The separation cylinder19is nested in the filter cylinder frame18. The separation cylinder19is sheathed on the periphery of the separation spiral shaft portion and in clearance fit with the separation spiral shaft portion. A plurality of meat discharge gaps is provided on the separation cylinder19, and the meat discharge gaps are arranged in a lengthwise direction along the axial direction of the separation cylinder19and extend from the larger end to the smaller end of the separation cylinder19. Annular reinforcing ribs20are provided on the outer wall of the separation cylinder19.

In this embodiment, two positioning guide strips are provided on an inner wall of the filter cylinder frame18, and positioning guide grooves matched with the positioning guide strips are formed at corresponding positions on an outer wall of the separation cylinder19. The separation cylinder19is sheathed on the filter cylinder frame18through the positioning guide strips and the positioning guide grooves, so that a rail-type structure is formed. When the separation cylinder19is mounted, the positioning effect may be realized, and the inconvenience of assembly and disassembly for workers may be improved.

Since a spiral rifling is provided inside the high-pressure chamber17, the resistance suffered by the material when moving within the high-pressure chamber17is increased, the pressure within the high-pressure chamber17is increased, and the crushing efficiency of the material is thus improved.

By designing the separation cylinder19to be conical, the service life may be prolonged by adjusting the axial displacement of the spiral shaft3; moreover, the pressure within the separation cylinder19may be increased, so that the pressure applied to the raw material during its movement from the larger end to the smaller end of the separation cylinder19is increased, the crushing effect can be enhanced, and it is advantageous to discharge the meat cubes from the separation cylinder19. In this embodiment, annular reinforcing ribs20are provided on the outer wall of the separation cylinder19. The annular reinforcing ribs20may ensure that the separation cylinder19still has a very high strength even after many gaps are formed by cutting, and that the separation cylinder19will not be damaged due to the internal pressure expansion.

As shown inFIGS. 15 and 16, the depth direction of the meat discharge gaps21is inclined and offset from a radial direction of the separation cylinder19, and the direction of inclination is the same as a rotation direction of the spiral shaft3; and, the width of the meat discharge gaps21gradually becomes larger from the inner wall to the outer wall of the separation cylinder19. Since the meat cubes are smaller in size than the bone dregs, the meat cubes are discharged from the meat discharge gaps21, and the bone dregs stay in the separation cylinder19. Since the meat discharge gaps21having an angle of inclination on the separation cylinder19are straight gaps arranged in the radial direction of the separation cylinder, the separation is smoother and the yield is increased.

As a preferred implementation of the meat discharge gaps21of the present invention, and as shown inFIG. 16, in the depth direction of the meat discharge gaps21, the width of the meat discharge gaps21gradually becomes larger from the inner wall to the outer wall of the separation cylinder19; and, for each of the meat discharge gaps21, the width of the bottom is 0.3 mm to 0.35 mm, the width of the middle portion is 0.8 mm to 0.85 mm, and the width of the top is 2.5 mm. In such a design, since the width of the bottoms of the gaps is smaller, it is ensured that the bone dregs will not enter the smaller bottoms of the gaps and not be discharged from the meat discharge gaps21; moreover, since the width of the tops of the gaps is larger, the permeability is good, and it is convenient to discharge the meat cubes. Meanwhile, since a larger space is provided for the meat cubes after the meat cubes arrive at the tops of the gaps, the meat cubes can be quickly discharged.

As shown inFIGS. 1, 8, 9 and 10, the bone-meat separation portion6further includes a flange22, a control valve braking block23, a front frame24, a front gland25and a sliding sleeve26. The flange22is clamped with the filter cylinder frame18through a clamping disc27. As shown inFIG. 12, the clamping disc27includes a circular ring consisting of two semicircular clamping components of a same size. Annular grooves matched with the raised-edge shape of both the flange22and the filter cylinder frame18are provided on the two semicircular clamping components, and the two clamping components are connected by bolts. As shown inFIG. 8, the front frame24is a hollow frame, a residue outlet is provided on the bottom of the front frame24, and one end of the front frame24is connected to the flange22while the other end is connected to the front gland25. The sliding sleeve26is arranged inside a bearing within the front frame24and the front gland25, the first shaft11is in key connection to the sliding sleeve26, and several grooves are provided on an outer wall of the sliding sleeve26. As shown inFIGS. 10 and 17, an outer wall of one end of the control valve7is in threaded connection to an inner wall of the flange22, while gear teeth are provided on an outer wall of the other end of the control valve7. The control valve7is engaged with a gear shaft28through the gear teeth. A ratchet wrench29is provided on the gear shaft28. The gear shaft28is mounted on the front frame24and is rotatable on the front frame24. The rotation of the ratchet wrench29can drive the rotation of the gear shaft28so that the control valve7can rotate relative to the flange22to generate a displacement. As shown inFIG. 9, the control valve braking block23is mounted on the front frame24through a pin shaft, and the control valve braking block23can be jammed on the gear teeth of the control valve7exposed out from the front frame24.

The bone dregs are discharged from the residue discharge gap and then discharged from the residue outlet on the front frame24. The sliding sleeve26is used to support the first shaft11, and several grooves are formed on the outer wall of the sliding sleeve26, so that it is convenient to rotate the sliding sleeve26when mounted so as to accurately mount the sliding sleeve26and the first shaft11.

During the separation of the meat cubes from the bone dregs, the gear shaft28can be driven to rotate by rotating the ratchet wrench29, and the gear shaft28then drives the control valve7engaged with the gear shaft to rotate, so that the control valve7can rotate relative to the flange22to generate a displacement. Accordingly, the gap between the control valve7and the conical sleeve13may be adjusted, and the yield is further adjusted.

The bone-meat separation portion6further includes a shield30with an opening formed on the bottom thereof. The shield30is mounted on the control valve7through a compression ring31(FIG. 10). As shown inFIG. 18, a pointer32is fixedly mounted on the shield30, a pointer opening33having a width matched with the width of the pointer32is formed on the front frame24in the axial direction, and the pointer32extends into and out from the pointer opening33. A scale is provided on a side wall of the periphery of the front frame24where the pointer opening33is formed.

Since the bone-meat separator has a high rotation speed and a high pressure during its operation and the discharged bone dregs splash out, a shield30is connected to the control valve7, so that the discharged bone dregs are blocked during the separation, and both cleanness and safety are ensured. The pointer32on the shield30may indicate a graduation through the scale on the front frame24to indicate the yield. The gap between the control valve7and the conical sleeve13may be represented by the position indicated by the pointer32. Different scale positions indicate different gaps between the control valve7and the conical sleeve13. On the other hand, since the pointer32is fixedly mounted on the shield30and extends into the pointer opening33on the front frame24, the pointer32on the shield30can restrict the rotation of the shield30. Therefore, during the adjustment of the control valve7, the shield30will not rotate along with the rotation of the control valve7. Moreover, since the opening of the shield30is always orientated downward, it is ensured that the bone dregs are intensively discharged from the opening below the shield30and then discharged from the residue outlet on the bottom of the front frame24.

The bone-meat separator further includes a swing-type lifter frame34. As shown inFIG. 19, the swing-type lifter frame34includes a lifter mount35, a front swing arm36, a rear swing arm37and a lifter support38. The lifter mount35is arranged on the outer wall of the top of the front frame24. The lifter support38is arranged on the outer wall of the high-pressure chamber17. A sliding shaft73passes through the lifter mount35, a lifter shield74is connected to the sliding shaft73, and a lower end of the lifter shield74is sheathed on the sliding shaft73. One end of the front swing arm36is connected to the top of the lifter shield74through a lifter adjusting bolt39. A lifter adjusting nut40is provided outside the lifter adjusting bolt39above the front swing arm36, and a lifter protection cover68is provided on the top of the lifter adjusting bolt39. The lifter adjusting bolt39can move up and down by rotating the lifter adjusting nut40. The other end of the front swing arm36is connected to one end of the rear swing arm37through a middle spindle41, while the other end of the rear swing arm37is connected to the lifter support38through a rear spindle42.

The swing-type lifter frame34is used in the maintenance and cleaning process of the bone-meat separator and the front and rear swing arms are rotated freely. After the front and rear swing arms are rotated to proper positions as desired, the disassembly, cleaning and mounting operations of the bone-meat separation portion6can be easily completed. The lifter adjusting nut40may move up and down by adjusting the lifter adjusting bolt39through threads, so that the height of both the front swing arm36and the rear swing arm37is adjusted. Thus, it is convenient to mount and use, and almost no secondary adjustment is required after the primary adjustment. The lifter protection cover68may prevent the uncontrolled bounce of the swing-type lifter frame34resulted from the thread failure, thereby ensuring the safety. A lifter limiting pin43is provided on the lifter support38, so that the angle of rotation of the swing arms may be limited and the obstruction resulted from a too large angle of rotation is avoided when in use.

As shown inFIG. 10, a partition ring44is provided inside the filter cylinder frame18. An inner wall of the partition ring44contacts the outer wall of the separation cylinder19to partition the filter cylinder frame18into a first frame45and a second frame46. Meat outlets are provided on both the first frame45and the second frame46. A first isolation hood47is sheathed outside the first frame45, and a second isolation hood48is sheathed outside the second frame46. A pipe port49is provided on the first insulation hood47and/or the second isolation hood48. As shown inFIG. 11, fixed plates50each having an opening formed on its bottom are provided on the first insulation hood47and/or the second isolation hood48, and the first insulation hood47and/or the second isolation hood48is fastened on the filter cylinder frame18through a fastening component. As shown inFIG. 13, the fastening component includes a fastening mount51, a fastening connecting plate52and a fastening locking screw53. The fastening mount51is arranged on the high-pressure chamber17. Two ends of the fastening connecting plate52are connected to the fastening mount51and the clamping disc27through pin shafts, respectively. One end of the fastening locking screw53is connected to the fastening mount51through a pin shaft. A first fastening locknut54and/or a second fastening locknut55is provided on the fastening locking screw53. The fastening locking screw53passes through the fixed plates50and is then locked by the first fastening locknut54and/or the second fastening locknut55.

The meat cubes separated by the separation cylinder19are different in fiber property. The meat cubes separated by a portion of the separation cylinder19close to the high-pressure chamber17has better fiber property and better taste, so the meat cubes may be used as raw materials of high-grade products. However, the meat cubes separated by a portion of the separation cylinder away from the high-pressure chamber17has lower fiber property and may be used as raw material of ordinary products. Since the partition ring44inside the filter cylinder frame18partitions the body of the filter cylinder frame18into a first frame45and a second frame46, the meat cubes separated by the front and rear portions of the separation cylinder19are isolated from each other, so that the meat paste separated by the two portions may be collected according to the requirements of a user and then processed into different products. Meanwhile, optionally, a first isolation hood47and a second isolation hood48are provided outside the first frame45and the second frame46, respectively, and pipe ports49for connecting hoses are formed on the first frame and the second frame, so that material discharge is centralized and it is cleaner. According to the actual requirements of a user, in the present invention, both of the first isolation hood47and the second isolation hood48or neither the first isolation hood47nor the second isolation may be provided, or only one of the first isolation hood47and the second isolation hood48is provided in different embodiments of this invention.

In the present invention, two fixed plates50are provided on the first isolation hood47and the second isolation hood48, respectively, for fixing and positioning the first isolation hood47and the second isolation hood48when the fastening components work. When the first isolation hood47and the second isolation hood48are fastened by fastening components, the first isolation hood47and the second isolation hood48are sheathed from the smaller end of the filter cylinder frame18; then, the fastening locking screw53is swung into the openings on the fixed plates50on two sides of the first isolation hood47and/or the second isolation hood48; and, the first fastening locknut54and/or the second fastening locknut55are rotated, and during the rotation of the nut, a force is applied to allow the first isolation hood47and the second isolation hood48to move toward the larger end of the filter cylinder frame18to realize the purpose of fastening.

As shown inFIG. 20, the feed hopper4is located above the spiral shaft3and provided with a first spiral crushing shaft56and a second spiral crushing shaft57which rotate together in opposite directions, and several guide strips58are provided between the bottom of the feed hopper4and the spiral shaft3.

As shown inFIG. 1, the driving mechanism includes a motor59, a belt60, a first pulley61, a second pulley62and a speed reducer63. An output shaft of the motor is connected to the first pulley61. The first pulley61is connected to the second pulley62through the belt60, and the second pulley62is connected to an input shaft of the speed reducer63. An output shaft of the speed reducer63is connected to the transmission shaft2through a coupler64. A first chain wheel65is provided on the coupler64. A second chain wheel66and a first gear67are provided on the first spiral crushing shaft56. The first chain wheel65is connected to the second chain wheel66through a chain. A second gear is provided on the second spiral crushing shaft57. The first gear67is engaged with the second gear. As shown inFIG. 21, the transmission shaft2is arranged on a bearing seat69, and a sewage outlet70capable of discharging the material leaked onto the bearing seat69is provided on an end face of an end of the bearing seat69close to the feed hopper4.

By additionally providing a first spiral crushing shaft56and a second spiral crushing shaft57above the spiral shaft3, the material will be preliminarily crushed before contacting the spiral shaft3; and, the material may be further crushed by the guide strips58between spiral shaft3and the bottom of the feed hopper4, so that the degree of crushing is improved. By providing a first chain wheel65on the coupler64and connecting the first chain wheel to a second chain wheel66on the first spiral crushing shaft56, the power is transferred, and the engagement of the first gear67with the second gear allows the two crushing shafts to rotate in opposite directions.

The motor59is a variable-frequency motor. By controlling the rotation speed of the motor59through a converter, the rotation speed of the motor59may be flexibly adjusted according to the hardness of the raw material. Moreover, the separation speed may be adjusted by controlling the rotation speed of the motor59, so that the yield is directly controlled. For different raw materials, the bone-meat separator may operate at a high speed or a low speed. For example, when the raw material to be separated is at a low temperature, the raw material is relatively hard, and the device power is relatively highly required, so that a lower rotation speed may provide a higher torque to separate the material and the device is also protected. A too high separation speed will aggravate the damage to the components of the device, and both the service life of the device and the quality of the eventually separated meat are thus influenced. A higher speed is used to separate relatively soft raw material. The soft raw material has better flowbability than the hard raw material, so that faster rotation is more beneficial for the device to convey the material.

The principles and implementations of the present invention have been described by specific examples in the present invention. The description of the embodiments is merely for helping the understanding of the methods of the present invention and their concepts. Meanwhile, it should be understood by a person of ordinary skill in the art that various changes may be made to the specific implementations and usage ranges without departing from the concepts of the present invention. In conclusion, the content of the description shall not be regarded as any limitations to the present invention.