Patent Publication Number: US-2015068333-A1

Title: Transmission structure of a filling machine

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a transmission structure, and more particularly to a transmission structure of a filling machine. 
     2. Description of Related Art 
     FIG. 1 to FIG. 4-8 of patent TWM353639 disclose a conventional transmission structure of a filling machine, wherein the FIG. 1 to FIG. 4-8 of the patent TWM353639 are arranged as an IDS (Information Disclosure Statement) of the present invention. Referring to FIG. 1 to FIG. 4-8 of the patent TWM353639, the conventional transmission structure of a filling machine comprises a motor, a transmitting chain, a first gear and a second gear which cooperate with each other. The transmitting chain is engaged with the first gear and the second gear. The motor drives the first gear and the second gear to rotate. The transmitting chain is operated by said rotation of each gear. 
     However, the conventional transmission structure has two disadvantages as following: 
     First, it needs two gears to operate the transmitting chain so that the structure is too complicated to be easily maintained; in addition, the two gears occupies much space so that the conventional transmission structure might be bulky. 
     Second, the chain might be unexpectedly disengaged from the two gears during operation, because of the engagement design of the conventional transmission structure. 
     The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional braking system. 
     SUMMARY OF THE INVENTION 
     The main objective of the present invention is to provide an improved transmission structure. 
     To achieve the objective, a transmission structure, which is connected to a motor of a filling machine so as to drive a transmission operation of the filling machine, comprises a transmitting wheel having a shaft member extended from one side thereof, the shaft member connected to the motor, the transmitting wheel having a first rail defined at one side thereof, the first rail encircling the shaft member, the transmitting wheel having a second rail defined around a center of another side thereof, the transmitting wheel having a third rail defined at another side thereof, the third rail located along an outer periphery of the second rail, the third rail having two ends which both communicate with an outside relative to the transmitting wheel; a swing set assembled to the transmitting wheel, the swing set having two latitudinal rods, two longitudinal rods and a first spindle, each latitudinal rod connected to the two longitudinal rods at two ends thereof, so as to define an assembling area which is encircled by the two latitudinal rods and the two longitudinal rods; a clamper assembled on the assembling area, one end of the first spindle connected to one latitudinal rod which is adjacent to the transmitting wheel, another end of the first spindle inserted into the second rail, a rotation of the transmitting wheel driving the two latitudinal rods and the two longitudinal rods to swing transversely, via the first spindle which is connected between one latitudinal rod and the second rail of the transmitting wheel, the swing of each of the two latitudinal rods and the two longitudinal rods driving an opening of the clamper to open or close; a lift set having two positioning rods, two sliding blocks, a connecting plate and a second spindle, the two positioning rods assembled on the filling machine, the two positioning rods respectively and vertically located at two ends of the transmitting wheel, the connecting plate connecting the two sliding blocks, the two sliding blocks respectively mounted around the two positioning rods, each sliding block being axially movable relative to each corresponding positioning rod, the connecting plate extending across the transmitting wheel at one side of the transmitting wheel, one end of the second spindle connected to the connecting plate, another end of the second spindle inserted into the first rail; a supporting plate assembled to the two sliding blocks at one side of each sliding block, the supporting plate corresponding to the swing set, the supporting plate connected to the swing set, the second spindle moved along the first rail of the transmitting wheel, a motion of the second spindle driving each sliding block to axially move relative to each corresponding positioning rod via the connecting plate between the second spindle and each sliding block, a motion of each sliding block driving the supporting plate and the swing set to axially move, the supporting plate having a through opening corresponding to the opening of the clamper; and a transmitting set assembled to the filling machine and located below the supporting plate, the transmitting set having a third spindle, a transmitting band, a movable set and two roller rods, one end of each roller rod connected to the filling machine, the two roller rods spaced from each other, one end of the third spindle inserted into the third rail of the transmitting wheel, another end of the third spindle pivoted on the filling machine, the third spindle connected to one of the two sliding blocks, the movable set connected to the third spindle and located between the two roller rods, the transmitting band enclosing the two roller rods and the movable set, the third spindle moved along the third rail by the rotation of the transmitting wheel, a motion of the third spindle driving the movable set to axially move, the transmitting band axially moved by a motion of the movable set. 
     Wherein, the transmitting wheel further has a shaft bore opened therethrough; the shaft bore is located at a center of the transmitting wheel; the shaft bore is extended from the shaft member at one side of the transmitting wheel to another side of the transmitting wheel therethrough; the second rail has a tip portion defined thereon; a length of the first rail, a length of the second rail and a length of the third rail are different from each other; the movable set of the transmitting set further has a moving block, a moving base, a moving frame and a roller member; the moving frame is U-shaped; one end of the moving block is connected to the third spindle; another end of the moving block is horizontally extended toward a front direction relative to the filling machine; the moving base has an abutting portion and a supporting post; the abutting portion and the supporting post are connected to each other; the supporting post passes through another end of the moving block, so as to assemble the abutting portion on a top plane of the moving block; the moving frame has a horizontal plate and two vertical plates; the two vertical plates are respectively assembled at two ends of the horizontal plate; the horizontal plate of moving frame is assembled at a lower end of the supporting post; the roller member is pivoted between the two vertical plates; the transmitting band encloses the two roller rods, the abutting portion and the roller member; the third spindle is moved along the third rail by the rotation of the transmitting wheel; the motion of the third spindle drives the moving block, the moving base and the moving frame to upwardly or downwardly move; each sliding block has a supporting block extended toward the swing set; each sliding block is perpendicular to the supporting block extended therefrom; a middle block is assembled between the supporting block of each sliding block and the supporting plate; two sides of the middle block are respectively abutted against the supporting block of each sliding block and the supporting plate; an elastomer is mounted around another end of the third spindle; one end of the elastomer is fixed on the third spindle; another end of the elastomer abuts against an inner bottom of the filling machine; one latitudinal rod is connected to the first spindle; another latitudinal rod has a through hole opened thereon; a bolt passes through the through hole and is connected to the clamper. 
     Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of the present invention; 
         FIG. 2  is a perspective view for showing a structure of the present invention; 
         FIG. 3  is an exploded view of the present invention; 
         FIG. 4  is a perspective view for showing the structure of the present invention; 
         FIG. 5  is a perspective view for showing a transmitting wheel; 
         FIG. 6  is a perspective view for showing a transmitting wheel; 
         FIG. 7  is a front elevational view of the present invention which is not operated yet; 
         FIG. 8  is a front elevational view of the present invention which is being operated; 
         FIG. 9  is a rear elevational view of the present invention which is being operated; 
         FIG. 10  is a top plan view of the present invention, in which an opening of a clamper is opened; 
         FIG. 11  is a top plan view of the present invention, in which the opening of the clamper is closed; 
         FIG. 12  is a top plan view of the present invention, in which the opening of the clamper is opened again; 
         FIG. 13  is a front elevational view of the present invention, in which a lift set and a transmitting set are both operated; 
         FIG. 14  is a rear elevational view of the present invention, in which the lift set and the transmitting set are both operated; 
         FIG. 15  is a front elevational view of the present invention, in which an object is transmitted on the transmitting set when the transmitting set is downwardly moved; and 
         FIG. 16  is a front elevational view of the present invention, in which the object is transmitted on the transmitting set when the transmitting set is upwardly moved. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring to  FIGS. 1-6 , a transmission structure of a filling machine in accordance with the present invention is connected to a motor  101  of a filling machine  10 , so as to drive a transmission operation of the filling machine  10 . The transmission structure of a filling machine comprises a transmitting wheel  1 , a swing set  2 , a clamper  3 , a lift set  4 , a supporting plate  5  and a transmitting set  6 . The transmitting wheel  1  has a shaft member  11  extended from one side thereof. The shaft member  11  is connected to the motor  101 . The transmitting wheel  1  has a first rail  12  defined at one side thereof. The first rail  12  encircles the shaft member  11 . The transmitting wheel  1  has a second rail  13  defined around a center of another side thereof. The transmitting wheel  1  has a third rail  14  defined at another side thereof. The third rail  14  is located along an outer periphery of the second rail  13 . The third rail  14  has two ends which both communicate with an outside relative to the transmitting wheel  1 . The swing set  2  is assembled to the transmitting wheel  1 . The swing set  2  has two latitudinal rods  21 , two longitudinal rods  22  and a first spindle  23 . Each latitudinal rod  21  is connected to the two longitudinal rods  22  at two ends thereof, so as to define an assembling area  24  which is encircled by the two latitudinal rods  21  and the two longitudinal rods  22 . The clamper  3  is assembled on the assembling area  24 . One end of the first spindle  23  is connected to one latitudinal rod  21  which is adjacent to the transmitting wheel  1 . Another end of the first spindle  23  is inserted into the second rail  13 . A rotation of the transmitting wheel  1  drives the two latitudinal rods  21  and the two longitudinal rods  22  to swing transversely, via the first spindle  23  which is connected between one latitudinal rod  21  and the second rail  13  of the transmitting wheel  1 . The swing of each of the two latitudinal rods  21  and the two longitudinal rods  22  drives an opening of the clamper  3  to open or close. 
     The lift set  4  has two positioning rods  41 , two sliding blocks  42 , a connecting plate  43  and a second spindle  44 . The two positioning rods  41  are assembled on the filling machine  10 . The two positioning rods  41  are respectively and vertically located at two ends of the transmitting wheel  1 . The connecting plate  43  connects the two sliding blocks  42 . The two sliding blocks  42  are respectively mounted around the two positioning rods  41 . Each sliding block  42  is axially movable relative to each corresponding positioning rod  41 . The connecting plate  43  extends across the transmitting wheel  1  at one side of the transmitting wheel  1 . One end of the second spindle  44  is connected to the connecting plate  43 . Another end of the second spindle  44  is inserted into the first rail  12 . The supporting plate  5  is assembled to the two sliding blocks  42  at one side of each sliding block  42 . The supporting plate  5  corresponds to the swing set  2 . The supporting plate  5  is connected to the swing set  2 . The supporting plate  5  has a through opening  51  corresponding to the opening of the clamper  3 . The second spindle  44  is moved along the first rail  12  of the transmitting wheel  1 . A motion of the second spindle  44  drives each sliding block  42  to axially move relative to each corresponding positioning rod  41  via the connecting plate  43  between the second spindle  44  and each sliding block  42 . A motion of each sliding block  42  drives the supporting plate  5  and the swing set  2  to axially move. 
     The transmitting set  6  is assembled to the filling machine  10  and is located below the supporting plate  5 . The transmitting set  6  has a third spindle  61 , a transmitting band  62 , a movable set  63  and two roller rods  64 . One end of each roller rod  64  is connected to the filling machine  10 . The two roller rods  64  are spaced from each other. One end of the third spindle  61  is inserted into the third rail  14  of the transmitting wheel  1 . Another end of the third spindle  61  is pivoted on the filling machine  10 . The third spindle  61  is connected to one of the two sliding blocks  42 . The movable set  63  is connected to the third spindle  61  and is located between the two roller rods  64 . The transmitting band  62  encloses the two roller rods  64  and the movable set  63 . The third spindle  61  is moved along the third rail  14  by the rotation of the transmitting wheel  1 . A motion of the third spindle  61  drives the movable set  63  to axially move. The transmitting band  62  is axially moved by a motion of the movable set  63 . Under this arrangement, the first spindle  23 , the second spindle  44  and the third spindle  61  are respectively moved along the second rail  13 , the first rail  12  and the third rail  14 , via the rotation of the transmitting wheel  1 ; as a result, the swing set  2 , the lift set  4  and the transmitting set  6  are driven to operating by said motions of the spindles  23 ,  44  and  61 . Therefore, objects which are under filling can be cut to be formed and be transmitted smoothly. 
     Referring to FIGS.  2  and  5 - 6 , the transmitting wheel  1  further has a shaft bore  15  opened therethrough. The shaft bore  15  is located at a center of the transmitting wheel  1 . The shaft bore  15  is extended from the shaft member  11  at one side of the transmitting wheel  1  to another side of the transmitting wheel  1  therethrough, so that the second rail  13  and the third rail  14  both surround the shaft bore  15 . The motor  101  has a shaft (not shown). The transmitting wheel  1  is assembled on the motor  101  via the shaft bore  15  of the transmitting wheel  1  and the shaft of the motor  101 . 
     The second rail  13  has a tip portion  131  defined thereon. A length of the first rail  12 , a length of the second rail  13  and a length of the third rail  14  are different from each other. A track of the first rail  12 , a track of the second rail  13  and a track of the third rail  14  are different from each other. When the transmitting wheel  1  rotates, the first spindle  23 , the second spindle  44  and the third spindle  61  respectively drive the swing set  2 , the lift set  4  and the transmitting set  6  to operate at different times, because said lengths or said tracks are different from each other. For example, when the first spindle  23  is moved along the second rail  13  and is pressed by the tip portion  131  of the second rail  13 , a swing direction of the swing set  2  is shifted by a motion of the first spindle  23 ; in addition, the swing set  2 , the lift set  4  and the transmitting set  6  cooperate with each other, so as to define a best sequence of cutting and transmitting and make products uniformly (as shown in FIGS.  2  and  5 - 6 ). 
     Each sliding block  42  has a supporting block  421  extended from one side thereof toward the swing set  2 . Each sliding block  42  is perpendicular to the supporting block  421  extended therefrom. A middle block  422  is assembled between the supporting block  421  of each sliding block  42  and the supporting plate  5 . Two sides of the middle block  422  are respectively abutted against the supporting block  421  of each sliding block  42  and the supporting plate  5 . The middle block  422  of each sliding block  42  is configured to move the supporting plate  5  and the wing set  2  directly. In addition, a user can replace the middle block  422  of each sliding block  42  with another middle block which has a thickness being different from that of the middle block  422 , so as to adjust a time slot of the axially motion of the lift set  4 , the supporting plate  5  and the wing set  2  (as shown in  FIGS. 2 and 7 ). 
     The movable set  63  of the transmitting set  6  further has a moving block  631 , a moving base  632 , a moving frame  633  and a roller member  634 . The moving frame  633  is U-shaped. The moving block  631  is T-shaped. One end of the moving block  631  is connected to the third spindle  61 . Another end of the moving block  631  is horizontally extended toward a front direction relative to the filling machine  10 , and is assembled to the moving base  632 . The moving base  632  has an abutting portion  6321  and a supporting post  6322 . The abutting portion  6321  and the supporting post  6322  are vertically connected to each other. An upper end of the supporting post  6322  passes through another end of the moving block  631 , so as to assemble the abutting portion  6321  on a top plane of the moving block  631 . The moving frame  633  is assembled at a lower end of the supporting post  6322 . The moving frame  633  has a horizontal plate  6331  and two vertical plates  6332 . The two vertical plates  6332  are respectively assembled at two ends of the horizontal plate  6331 . The two vertical plates  6332  are spaced from each other. The roller member  634  is pivoted between the two vertical plates  6332 . The lower end of the supporting post  6322  passes through the horizontal plate  6331  of the moving frame  633 . The transmitting band  62  encloses the two roller rods  64 , the abutting portion  6321  and the roller member  634 . The third spindle  61  is moved along the third rail  14  by the rotation of the transmitting wheel  1 . The motion of the third spindle  61  drives the moving block  631 , the moving base  632  and the moving frame  633  to upwardly or downwardly move. Under this arrangement, before one of the objects is cut, the motion of the third spindle  61  drives the moving block  631 , the moving base  632  and the moving frame  633  to upwardly move; as a result, the transmitting band  62  is upwardly moved by a motion of the movable set  63 , so as to hold the object. In contrast, after the object is cut, the motion of the third spindle  61  is shifted by the third rail  14  of the transmitting wheel  1  and drives the abutting portion  6321  and the moving frame  633  to downwardly move away from the swing set  2 ; as a result, the transmitting band  62  transmits the object forward, via a rotation of the roller member  634 . Therefore, the objects are transmitted smoothly and are formed uniformly (as shown in  FIGS. 2-3  and  7 - 8 ). 
     An elastomer  7  is mounted around another end of the third spindle  61 . One end of the elastomer  7  is fixed on the third spindle  61 . Another end of the elastomer  7  abuts against an inner bottom of the filling machine  10 . The elastomer  7  is configured to make the axially motion of the third spindle  61  stable, so as to prevent the transmitting band  62  from being shaken by the axially motion of the third spindle  61  (as shown in  FIGS. 7-9  and  12 - 16 ). Therefore, the objects are held and transmitted on the transmitting band  62  stably. 
     The detail of the operation of the present invention is further described as following. Before the present invention is operated, the opening of the clamper  3  is opened; the supporting plate  5  is located at an initial position; the movable set  63  of the transmitting set  6  does not yet drive the transmitting band  62  to upwardly move (as shown in  FIGS. 7 and 10 ). When the motor  101  is operated and drives the transmitting wheel  1  to rotate, the third spindle  61  is moved along the third rail  14  and drives the abutting portion  6321  of the movable set  63  to upwardly move; the abutting portion  6321  moves the transmitting band  62  toward the supporting plate  5  and the swing set  2  (as shown in  FIGS. 2  and  8 ); the first spindle  23  is moved along the second rail  13  and the second spindle  44  is moved along the first rail  12  via the rotation of the transmitting wheel  1 ; each sliding block  42  is downwardly moved relative to each corresponding positioning rods  41  via the connecting plate  43  connected each sliding block  42  and the second spindle  44 ; the supporting plate  5  and the swing set  2  are downwardly moved via the motion of each sliding block  42  (as shown in  FIG. 13 ); the first spindle  23  is moved along the second rail  13  so as to drive the swing set  2  to swing transversely back and forth; the opening of the clamper  3  is opened and closed via the transverse swing of the swing set  2  (as shown in  FIGS. 11-12 ). As a result, when the lift set  4  drives the supporting plate  5  to downwardly move, simultaneously the swing set  2  drives the opening of the clamper  3  to open and close repeatedly, so as to cut the object and transmit the cut object to the transmitting band  62  of the transmitting set  6  via the through opening  51  of the supporting plate  5  (as shown in  FIGS. 7-15 ). 
     Thereafter, the transmitting wheel  1  continues rotating; the third spindle  61  is moved along the third rail  14  and drives the abutting portion  6321  of the movable set  63  to shift to downwardly move; the transmitting band  62  is released back from the supporting plate  5  and the swing set  2  via the motion of the abutting portion  6321  (as shown in  FIG. 16 ), so as to transmit the object stably; the second spindle  44  is moved along the first rail  12 ; the supporting plate  5  and the swing set  2  shift to upwardly move via the motion of each sliding block  42 , so that the present invention is back to an initial state. 
     Furthermore, one latitudinal rod  21 , which is adjacent to the transmitting wheel  1 , is connected to the first spindle  23 ; another latitudinal rod  21  has a through hole  211  opened thereon; a bolt  8  passes through the through hole  211  and is connected to the clamper  3 , so that the swing set  2  drives the opening of the clamper  3  to close when the swing set  2  swings left; the swing set  2  drives the opening of the clamper  3  to open when the swing set  2  swings right. Therefore, the opening of the clamper  3  opens and closes repeatedly and regularly via a structure of the transmitting wheel  1 , so that all the cut objects have a uniform size (as shown in  FIG. 3 ). 
     All in all, the swing set  2 , the lift set  4  and the transmitting set  6  cooperate with each other via only the transmitting wheel  1 , rather than cooperate with each other via a plurality of gears corresponding to different sets as the prior art. Therefore, the structure of the present invention is simpler than that of the prior art; a weight or a volume of the present invention is littler than that of the prior art. In addition, the present invention is easier to maintain than the prior art, because the structure of the present invention is simpler than that of the prior art. By the way, each of the spindles  23 ,  44  and  61  never unexpectedly derails from each of the rails  12 ,  13  and  14  during operation, because of the inventive design of the transmitting wheel  1 . 
     Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.