Automatic bread maker, ingredient box and bread making method

A method of making bread uses an automatic bread maker and an ingredient box. The method includes: put the bread ingredient with flour and baking powder according to proper formula into the accommodating room of the ingredient box and packaged; then place the ingredient box faced down in the hanging rack above the baking pan inside the automatic bread maker, operate the bread maker to make the sawtooth blade of the hanging rack pierced the film of the ingredient box and the bread ingredient inside fell down into the baking pan, then water the baking pan; close the housing of the automatic bread maker and turn on the baking pan, the bread ingredient is processed with working dough of mixing, stirring and kneading; get the baking pan out, and remove the bread of baked and shaped.

FIELD OF THE INVENTION

The present invention relates to an automatic bread maker for home made, a supporting bread ingredient box thereof and a bread making method using these devices.

BACKGROUND OF THE INVENTION

The bread maker for home made bread is more and more popular in the families and individuals with simple structure and it is more time-saving than the traditional bread making method. When used, the user needs to mix every bread ingredient including the ingredient like flour, fermentation powder and water, and the accessory like sauce, fruit, nut and others; these ingredients need to be weighted and counted, which takes much time. Moreover, it also needs technique and experience to obtain tasty bread. Different types and taste bread requires different composition of the ingredient, which requires higher proportional technique. On the other hand, the baking needs special technique, different baking process for different type of the bread. People have to get the composition of the ingredient for different baking for processing. Though the existing bread maker is simple in the baking processing, the composition of the ingredient is still a problem needed to be solved. And people have to learn for different composition of the ingredient and proper baking process, which costs much and is inconvenient. Moreover, the process of the home made bread has low fault tolerant rate, which is liable to lead to the failure of the bread due to the error in the composition of the ingredient and the process.

SUMMARY OF THE INVENTION

To solve the problem of the existing bread maker and the making method thereof, the present invention is provided with an automatic bread maker, a supporting bread ingredient box and the corresponding making method, the technical proposal is as below:

An automatic bread maker, comprising a housing, a baking pan is disposed inside the housing to mix or heat the bread ingredient, the baking pan is disposed with an entrance of faced up; wherein inside the housing, a hanging rack to place a bread ingredient box and a stock bin below the hanging rack are disposed above the entrance of the baking pan; the hanging rack is disposed with a sawtooth blade to pierce the ingredient box, the stock bin is disposed with a drop opening; the sawtooth blade is faced up; the drop opening is faced to the entrance, the size of the drop opening is smaller than that of the entrance; when the ingredient box is pierced, the bread ingredient of the ingredient box is dropped down to the stock bin; the stock bin includes a tubular wall and a cover coupled to the drop opening at the bottom of the wall; a driving mechanism is further disposed to control the cover to be open or to be closed relative to the wall to make the bread ingredient inside the stock bin fell down from the drop opening or kept inside the stock bin.

In another preferred embodiment, the shape of the sawtooth blade rounded in the horizontal plane is I shaped or non-closed circularity shaped.

In another preferred embodiment, a lid is disposed above the hanging rack to flexible connected to the housing; when the lid is pressed down to couple to the position of the housing, the ingredient box is driven to be positioned to be pierced by the sawtooth blade.

In another preferred embodiment, the hanging rack is disposed with a tray, the tray is coupled to the external periphery of the lower of the ingredient box to limit the ingredient box in the horizontal plane; the tray is movable to couple to the hanging rack in the vertical direction, the tray is disposed with a tray hole, the sawtooth blade can be passing through the tray hole.

In another preferred embodiment, the hanging rack is movably coupled to the housing up and down; the hanging rack is disposed with a self-locking device, when the hanging rack is falling to an unlock position relative to the housing, the self-locking device unlocks, so that the tray falls down inside the hanging rack, then the sawtooth blade gets up and passes through the tray; when the hanging rack is situated at the outside of the unlock position relative to the housing, the self-locking device prevents the tray falling down inside the hanging rack, making the sawtooth blade unable to get up to pass through the tray.

In another preferred embodiment, the self-locking device comprising:

a pushing block, which is coupled to the hanging rack in laterally sliding way, the pushing block is disposed with a limiting hole and an inclined guiding surface;

a limited post, which is fixed to the tray and extended downwards, the limited post is vertical to the laterally moving path of the pushing block;

a control block, which is fixed to the housing; the control block is contacted with the inclined surface to push the pushing block at the pressing path of the hanging rack;

the unlocking position is as below: when the hanging rack is falling down to a certain height, the control block is withstood the inclined surface of the pushing block, making the pushing block moving laterally to a certain position, and finally the limited post of the tray moves downward and just passes through the limiting hole;

a restoring spring is disposed between the pushing block and the hanging rack.

In another preferred embodiment, a buffer mechanism is disposed at the housing in the position holding the hanging rack, the buffer mechanism is disposed with a lifting lever, which is pivot joint to the housing, one end of the lifting lever is supported the hanging rack; a connecting rod is further disposed, two ends of the connecting rod are respectively movably coupled to the lifting lever and the lid of the housing;

when the lid is situated in open position, the lid draws the lifting lever to hold up through the connecting rod, making the lifting lever held one side of the hanging rack, so that the hanging rack can not be fell down to the unlock position;

when the lid is situated in the close position, the lid releases to draw the connecting rod, making the lifting lever fell down, so that the hanging rack is released and fell down to the unlock position.

In another preferred embodiment, a shockproof mechanism is disposed inside the housing near the hanging rack, the shockproof mechanism is controlled to make the ingredient box placed in the hanging rack shaking, making the bread ingredient inside the ingredient box totally fell down.

In another preferred embodiment, the cover is pivot joint to the stock bin in single gate opened downwards way.

In another preferred embodiment, the cover is pivot jointed to the stock bin in double-gate opened downwards way.

In another preferred embodiment, the shaft of the cover is fixed with a pendulum arm; the driving mechanism is disposed with an electromagnet, the pendulum arm is pulled by an armature of the electromagnet through a rod to control the cover.

In another preferred embodiment, the wall of the stock bin is gradually narrowed from up to down, the cover is coupled to the end surface in the bottom of the wall.

In another preferred embodiment, the sawtooth blade is movably coupled to the hanging rack in the vertical direction, the sawtooth blade is controlled by an unloading electromagnet, the unloading electromagnet is controlled to drive the sawtooth blade to move up and down to pierce the film of the ingredient box.

In another preferred embodiment, the housing is disposed with a water tank and a water pipe below the water tank, the water pipe is controlled to transfer the water in the water tank to the baking pan.

In another preferred embodiment, the housing is disposed with a control block and a recognition device, the formula information on the ingredient box is detected and read by the recognition device and then transmitted to the control block, the control block sets different cooking programs according to the formula information.

In another preferred embodiment, the baking pan is in and out of the housing from the side of the housing.

In another preferred embodiment, the hanging rack is inclined relatively to the horizontal plane; the ingredient box placed on the hanging rack is inclined relatively to the horizontal plane as well.

The technical proposal of a bread ingredient box coupled to above automatic bread maker is as below:

A ingredient box applied in the above automatic bread maker, wherein the bread ingredient box with bread ingredient inside is disposed with a hard side wall, two ends of the side wall are respectively disposed with a first wall and a second wall, the first wall is a film easy to be pierced, and the film is applied together with the sawtooth blade of the hanging rack, when the second wall is pressed down, the sawtooth blade pierces the first wall.

In another preferred embodiment, the thickness of the film is ranged from 0.01 to 0.05 mm.

In another preferred embodiment, the shape of the film is coupled to that of the sawtooth blade.

In another preferred embodiment, the ingredient box has two accommodating rooms, the number of the first wall is two, two first walls are respectively corresponding to the accommodating rooms; one of the accommodating rooms is loaded with the bread ingredient, the other one is loaded with bread accessory with fruit.

In another preferred embodiment, the exterior is disposed with formula mark of machine readable.

In another preferred embodiment, the first wall is disposed in a plane, the film is coupled to the periphery of the top surface of the mouth of the ingredient box.

In another preferred embodiment, the side wall of the accommodating room is an inclined surface of gradually widened from the top surface to the bottom surface or an inclined surface of widened in sections.

In another preferred embodiment, the inclined surface is gradually widened, the inclined angle is ranged from 3° to 20°.

In another preferred embodiment, the inclined surface is gradually widened, the inclined angle is 7°.

In another preferred embodiment, the side wall is rectangle shaped.

In another preferred embodiment, the second wall and the side wall are applied with different hard material.

In another preferred embodiment, the second wall and the side wall are applied with same hard material.

In another preferred embodiment, the hard material is used with PP.

The technical proposal of a bread making method applied with above automatic bread maker and the ingredient box is as below:

A bread making method, wherein comprising:

step 1. a bread ingredient box with a weak outer wall is provided;

step 2. the bread ingredient with flour and baking powder according to proper formula is put into the first accommodating room of the bread ingredient box and packaged;

step 3. place the bread ingredient box faced down in the hanging rack above the baking pan inside the automatic bread maker, operate the bread maker to make the sawtooth blade of the hanging rack pierced the wall of the bread ingredient box and then the bread ingredient inside is dropped down to different stock bins for temporary storage, control the covers of the stock bin open at different times as required, making the bread ingredient dropped to the baking pan, water the baking pan at the same time;

step 4. close the housing of the automatic bread maker and turn on the baking pan of the automatic bread maker, the bread ingredient is processed with working dough of mixing, stirring and kneading, get a first dough from the baking pan;

step 5. the dough in the baking pan is resting and fermentation, make the fermentation air degassing out of the dough;

step 6. the dough in the baking pan is heated and baked until the bread is shaped well; get the baking pan out, and remove the shaped bread.

In another preferred embodiment, in the step 2, the bread accessory is put into the second accommodating room of the bread ingredient box, a step 7 is further added between the step 5 and step 6, put the bread accessory in the second accommodating room into the baking pan, the bread accessory is kneaded with the first dough to form the second dough.

In another preferred embodiment, a control block is provided to control the automatic bread maker by detecting and reading the formula information on the bread ingredient box to get different baking methods according to the formula information; the baking method includes the working process of the stirring blade in the baking pan, the heating process of the automatic bread maker and the water flow control.

The advantages of the present invention are as below:

1. The bread making method is provided with an automatic bread maker and an ingredient box, which saves the prepare time of the bread ingredient and making it a standardization module, that is the ingredient box; and the baking operation is simplified, the film of the ingredient box is pierced directly, the bread ingredient is unloaded to be baked after watered. This way prevents error of fermentation of the bread, and the method is simplified with low fault rate.

2. The bread ingredient can be mass produced with maximally keeping the conformance of the taste.

3. With the controlled water tank and the water pipe, the watering is automatic; there are several controlling methods for the water pipe of the water tank with water rationing.

4. With the unloading electromagnet, the ingredient box can unload the ingredient in pre-set time to meet the needs of more bread technical proposal and prevent the overflow and blossoming of the powder due to the pierced film when the ingredient box is improper disposed.

5. With the stock bin, the unloading from individual accommodating room is controlled, expanding the applicability of the home made bread method and the proposal of the home made bread, enriching the variety of the bread.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The First Embodiment

The first embodiment of the present invention, please refer toFIG. 1toFIG. 5andFIG. 13, includes a whole ingredient box4and a whole automatic bread maker;

FIG. 1illustrates the sectional view of the automatic bread maker assembled with a ingredient box4; the automatic bread maker includes a housing1, which is disposed with a baking pan2. The baking pan2is disposed with a stirring blade22, the external of baking pan2is disposed with a heater12. So the baking pan22and the subparts are provided with general functions of stirring and heating.

The baking pan2has an opening21faced up. Inside the housing1, a hanging rack3is disposed above the opening21of the baking pan2. The ingredient box4can be placed on the hanging rack3and positioned; and a sawtooth blade32and a tray37are disposed in the hanging rack3. A stock bin34and a drop opening31of the stock bin34are disposed below the sawtooth blade32. the sawtooth blade32is at the bottom of the positioned ingredient box4, and the drop opening31is below thereof; the opening21of the baking pan2is below the drop opening31; the size of the drop opening31is smaller than that of the opening21, preventing the overflow and blossoming of the powder.

FIG. 1illustrates the first working state of the first embodiment, therein the ingredient box4is just put into the hanging rack3and positioned, the lid11of the housing1is open, and the ingredient box4is not pressed yet.

As figured inFIG. 2of a working state of theFIG. 1, thereinto, when the ingredient box4is placed on the tray37, the lid11is depressed, making the entirety of the ingredient box4and the tray37subsided, the film of the ingredient box4is pierced, the bread ingredient including the main ingredient431and the accessory432is fully unloaded to the stock bin34and they are still individually retained. Meanwhile, the ingredient box4is positioned relative to the hanging rack3.

As figured inFIG. 3, basic in theFIG. 2, the left bigger cover36is open, making the main ingredient431fully unloaded to the baking pan2. the baking pan2can be pre-watered; basic inFIG. 3, the main ingredient431is mixed, stirred, kneaded and fermented.

FIG. 4is another working state basic inFIG. 3. In this state, the bread main ingredient431has been stirred and fermented to get the first dough, then open the right smaller cover36to make the bread accessory432to drop into the baking pan2to mix with the main ingredient431, then stir and knead the mixture. Get the second dough from the first dough mixed with the bread accessory432. after finishing the state, start the heating and other process of the baking pan2. Finally, get the bread baked from the baking pan2.

With the stock bin34, it is available for the individual accommodating room44to unload the ingredient, much expanding the applicability of the home making bread method. Some accessory is not proper to process with the main ingredient, like large grained nuts, currant, spice or other food. In one hand, it will affect the taste and effect if the large grained food is early processed. In another hand, it brings extra work to the stirring blade. So it makes the bread formula in the individual accommodating room of the ingredient box4separately controlled, the home making bread technical expanded and the bread variety enriched.

This embodiment has other characters:

The hanging rack3of this embodiment is disposed with a tray37. As figured in theFIG. 5of the structure of the ingredient box4and the hanging rack3and the stock bin34. The ingredient box4is limited by the tray37in the horizontal direction. The tray37is movable up and down relative to the hanging rack3inside the hanging rack3. The four tray posts371are coupled to and inserted into a separator38and they are movable up and down with respect to the separator38. The separator38is fixed with the sawtooth blade32, which is non-closed circularity shaped in the horizontal plane. Moreover, each individual accommodating room44corresponding to the ingredient box4is disposed with a ring of the sawtooth blade32. The tray37is disposed with a tray hole inside, the sawtooth blade32is passed through the tray hole and it is movable up and down with respect to the tray37. With the tray37, the film is pierced in the manner that the ingredient box4is depressed, simplifying the step and preventing too many control components to drive the sawtooth blade32; in the other hand, the tray37retains the lateral stability when the ingredient box4is depressed. The pierced position and shape is well compared to that the ingredient box4is situated above the sawtooth blade32.

Below the sawteeth blade32, the wall35of the stock bin34is fixed to the separator38, the wall35is gradually narrowed from up to down. The cover36is coupled to the end face of the bottom of the wall35, making the powdered bread ingredient temporally stored inside the stock bin34and not dropped down. The individual accommodating room is coupled to individual wall35and cover36.

FIG. 13illustrates another working state basic of this embodiment of watering the water tank14, watering can be done in any time afterFIG. 1. The water tank14has enough water and is controlled automatically or manually to supply water to the baking pan2through the water pipe15to water the bread ingredient43. After that, start the electric heater12. finally the bread baking is completed.

The full baking process in the first embodiment of the present invention is brief summarized as below:

Step 1. A ingredient box4with a weak outer wall is provided; the ingredient box4is applied with a film as the weak outer wall;

Step 2. The bread ingredient43with flour and baking powder according to proper formula is put into the ingredient box4and packaged; the step 1 and step 2 are pre-set by the manufacturer; put the ingredient into the first accommodating room and the second accommodating room of the ingredient box;

Step 3. make the opening42of the ingredient box4faced down in the hanging rack3above the baking pan2inside the automatic bread maker, operate the bread maker to make the sawtooth blade32of the hanging rack3pierced the film45of the ingredient box4and the bread ingredient43inside fell down to the baking pan2, then water the baking pan2;

Step 4. close the housing of the automatic bread maker and turn on the baking pan2, the bread ingredient is processed with working dough of mixing, stifling and kneading, get the first dough in the baking pan;

Step 5. The dough in the baking pan2is on resting and fermentation; stir the dough and make the fermentation air leaked out of the dough to the baking pan2; the bread accessory of the second accommodating room is dropped into the baking pan to be mixed and stirred with the first dough to get the second dough in the baking pan;

Step 6. the dough in the baking pan2is heated and baked until the bread is shaped well; get the baking pan out, and remove the shaped bread.

The step 3 to step 6 is self-processed by the user.

We can see that the home made bread method is supported with the automatic bread maker and the ingredient box, much saving the prepare time of the bread ingredient and making it a standardization module, that is the ingredient box; and the baking operation is simplified, the film45of the ingredient box4is pierced directly, the bread ingredient43is unloaded out to be baked after watered. This way prevents error of fermentation of the bread, and the method is simplified with low fault rate of the home made bread. Especially, the ingredient box4can be mass produced with maximally keeping the conformance of the taste. With the controlled water tank and the water pipe, the watering is automatic; there are several controlling methods for the water pipe15of the water tank14with water rationing.

The ingredient box4of this embodiment is disposed with formula mark46of computer readable. The housing1is disposed with corresponding recognition device, which reads the information on the formula mark46when the ingredient box4is positioned on the hanging rack3. Then the recognition device gives command to the control block (not figured out) inside the automatic bread maker. With the formula mark46and the recognition device the automatic bread maker is intellective. Different bread formula with corresponding formula mark46to control the automatic bread maker to apply particular baking technique of stirring and baking. It does not need user to memory and consult, making the bread maker automatically choosing the proper proposal to work with humanization. There are many types of formula mark46, such as stenciled geometrical pattern, contact recognition geometrical figure or radio frequency inductive module. This embodiment applies with the stenciled geometrical pattern and the recognition device applies with the array infrared ray TR-tube to read and recognize the different formula of pre-set geometrical pattern.

The Second Embodiment:

The housing of this embodiment is similar to that of the first embodiment. The difference is in the hanging rack3.FIG. 6illustrates the breakdown structure of the hanging rack3; in this embodiment, the hanging rack3is not fixed with respect to the housing, but movable up and down with respect to the housing; the sawtooth blade rack321can be movable up and down with respect to the housing; the sawtooth blade rack321is a fixation component for the sawtooth blade32.

A self-locking device is disposed on the hanging rack3, the self-locking device includes a pushing block80, a limited post71and control block72, there are four pushing blocks80, which are laterally coupled to the sawtooth blade rack321of the hanging rack3in sliding way; the limited post71is fixed below the tray37, the limited post71is extended down and vertical to the laterally moving path of the pushing block80; the control block72is fixed to the housing; in the depress path of the hanging rack and the entirety of the sawtooth blade rack321and the tray37, the pushing block80is laterally pushed.

FIG. 7is the side view of the first state of the hanging rack of theFIG. 6;FIG. 8is the side view of the second state of the hanging rack of theFIG. 6. the two drawings illustrate the working state of the second embodiment.

FIG. 7is the default state of the whole device, the tray37and the sawtooth blade rack321are not depressed, the control block72is not contacted with the pushing block80of the sawtooth blade rack321, making the limiting hole83of the pushing block80and the limited post71of the tray37mismatched. As the limited post71moves downward, the tray37is stopped to be subsided. When the entirety of the tray37and the sawtooth blade rack321are not under the depress, that is to say when the ingredient box is not positioned right, the tray37can not move relative to the sawtooth blade rack321, the sawteeth blade32will not be extended upward from the bottom of the tray37, it prevents lying and ensur the safety of usage and the liable of the movable component of the device.

As figured in theFIG. 8, when the ingredient box is placed on the tray37, the tray37and the sawtooth blade rack321are entirely subsided until the control block72contacts with the pushing block80, making the pushing block80moving laterally. Then the limiting hole83of the pushing block80reaches to a certain position, and the limited post71of the tray37is freely passing through the limiting hole83.FIG. 8defines an unlock position that the tray37can move up and down freely relative to the sawtooth blade rack321, so that the sawtooth blade32can be extended upward relative to the tray37to work out. Only if the whole device situated in the unlock position, the tray37can move up and down freely relative to the sawtooth blade rack321to work out. Otherwise, the tray37is fixed relative to the sawtooth blade rack321and the sawteeth blade32can not be extended out.

FIG. 9illustrates the detailed relative position of the pushing block80and the limited post71of theFIG. 7, showing the status that the limited post71is limited by the pushing block80downwards. The limiting hole83of the pushing block80is mismatched relative to the path of the limited post71. At the bottom of the limited post71, a limiting inclined surface79is disposed in the unlocking direction of the pushing block80to improve the unlock effect of the self-locking device, so that the pushing block80can slide left as figured in the drawing to unlock with the assistant of the limiting inclined surface79by the limited post71. The unlocking is highly sensitive and in effect. With the restoring spring82, the pushing block80is quickly self-restored after unlocked.

FIG. 10illustrates the detailed relative position of the control block72and the pushing block80inFIG. 8, it's in the unlock position, after the top of the control block72is contacted with the inclined surface81of the pushing block80, the unlock position is stable by the flatside73on the side surface of the control block72, making the pushing block80situated in the unlock status. The structure makes the unlock position more stable with well fault tolerant rate. The hanging rack with the self-locking device has an advantage that when the hanging rack is taken out to clean, the tray37, the sawteeth blade32and the sawtooth blade rack321are remaining stationary to protect the user and the device from being hurt by the sawteeth blade32, it is provided with well safety.

FIG. 11illustrates the structure of the cover36and the supporting driving component of the embodiment; the bigger cover and smaller cover36are separately corresponding to the accommodating room of the ingredient box. The two covers have pivot shaft39, the pivot shaft39is fixed with a pendulum arm53. The pendulum arm53is controlled by the electromagnet50through the armature51, making the cover36open downward following the arrow or closed upward in the reverse direction. It makes the opening time-saving and quick with smallest friction and resistance.

The Third Embodiment:

FIG. 12illustrates the structure of the cover36and the supporting driving component of the third embodiment of the present invention. Most of it is similar to the second embodiment; the difference is that the bigger cover36is not single-gate faced downward, but double-gate of controlled by an electromagnet. It decreases the operation torque of the cover36and the open height, enhances the reliable of the opening mechanism and makes the space availability to realize automatic bread maker more compact.

The Fourth Embodiment:

As figured inFIG. 14andFIG. 15of the fourth embodiment of the present invention, the housing1, the lid11, the water tank14, the water pipe15, the pump16, the baking pan2and other main components are similar to the previous embodiment, the hanging rack is similar to the second embodiment, it is detachable, the hanging rack includes the tray37and the sawtooth blade32.

The difference is that, the ingredient box4has only one accommodating room44, so that the sawtooth blade32is a single non-closed circular shape; there is only one stock bin34and one cover34below the stock bin.similarly, the cover36is controlled by an electromagnet50, the cover36can open downwards, this embodiment can be seen as the essential edition of the second embodiment, it can be used to make bread with bread main ingredient, it operates smoothly and fast. With the stock bin34, the timing of the unloading of the bread ingredient is controllable, so that it can make varies of bread. So the making step of this embodiment is similar to the first embodiment without the other stock bin and the second dough.

Please refer to theFIG. 15, which show the details of the ingredient box4. The ingredient box4has a hard body41, which is disposed with a hard side wall413, two ends of the side wall are respectively disposed with a first wall412and a second wall411, they form the accommodating room44and the opening42below; the first wall412is a film45easy to be pierced, the film45is coupled to and fixed to the opening42, the film45is coupled to the sawtooth blade32of the hanging rack3, the second wall411is depressed by the lid11to drive the sawtooth blade32to pierce the first wall412.

The accommodating room44is closed by the film45. The accommodating room44is contained with the bread ingredient including flour, fermentation powder, sources and so on. The bread ingredient is pre-set, so it can be watered to stir and bake, bread main formula, then these compositions of bread ingredient are mixed according to a certain ratio and then packaged. The opening42is disposed on a flat plane, the film45is coupled to the periphery of the top surface of the bottom of the opening42. With this kind of the body41, the attachment of the film45is simple and the package is well. The accommodating room44is flat box shaped; the opening42is situated in a bottom surface of the flat box shaped accommodating room. The coverage area of the opening42is not smaller than the cross section area of the accommodating room44, ensuring that the bread ingredient43(as figured inFIG. 13) inside can be fully unloaded; especially, the hard body41is disposed with a flatside in the portion coupled to the film45, as figured in the dot line in the left edge of the ingredient box4inFIG. 3. the flatside has an advantages that it is severed as a connection part between the film45and the body41, when the other part of the film45is separated from the body41, the flatside is retained, making the opening42exposed out most, no flour or other materials stays on the film. Considering the balance of the piecing effect and the strength of the film45, the thickness of the film45is designed to range from 0.01 to 0.05 mm, it is material-saving, well piecing effect with enough strength. The shape of the hard body41and the film45is coupled to the shape of the sawtooth blade32, ensuring that the cut of the film is large enough to expose the opening42. the sawtooth of the sawtooth blade32is triangle shaped, the width is about 4 mm and the height is about 3.5 mm the height and the width of the sawtooth blade32can be changed according to the thickness of the film. The sawtooth blade has better cut effect working on the film45.

The sawtooth blade32of the hanging rack is a non-closed annular shape in the horizontal plane, so when the film45of the ingredient box is pierced by the sawtooth blade32, the part the film pierced by the sawtooth blade is liguliform, that is to say, most of the film is pierced, only an edge is still connected to the opening42; the shape of the sawtooth blade32can be other shape like I shape, the film45pierced by the I shaped sawtooth blade32has several liguliform parts.

The Fifth Embodiment:

Refer toFIG. 16. the housing and other main part of the fifth embodiment is similar to the previous embodiments; the hanging rack is similar to the fourth embodiment, the tray37and the sawtooth blade32to couple to the ingredient box4with two individual accommodating rooms, the separator38, the stock bin34below the separator38and the cover36controlled by the electromagnet50are similar to the first embodiment, thereinto two covers are opened downwards in the opposite directions. In this embodiment, the hanging rack3has an angle of 20° to the horizontal plane, so that the ingredient box4has an angle of 20° to the horizontal plane as well, it is inclined assembled, it can dispose more components in the horizontal direction of the hanging rack3in the height limited bread maker, so that the structure can be more compact and smaller.

The Sixth Embodiment:

FIG. 17toFIG. 19illustrates the partial structure of the sixth embodiment. The hanging rack3of this embodiment is figured inFIG. 17,FIG. 17also shows that the hanging rack3is situated in the unlocking position. The control block72is contacted with the pushing block80and drives the pushing block80to move, so that the limited post71can pass through the limiting hole83of the pushing block80out, so that the tray37moves downwards, and the sawtooth blade32is extended upwards out of the tray37from the bottom to pierce the ingredient box on the tray37.

The guide posts371of this embodiment are disposed upwards in the hanging rack3, they passes through the tray37, they are placed in the periphery of the sawtooth blade321of the hanging rack3, the guide posts371stands still with respect to the housing1, so that the movement of the tray37doesn't change the guide posts371, so that the space below the hanging rack3is not influenced by the guide posts371. when the tray37is depressed, the torsion due to inclination is small, the strength is well.

The sawtooth blade32of this embodiment is disposed with a protective board322, which is higher than the sawteeth of the sawtooth blade32when the tray37is not depressed yet, so that the hanging rack3is very safe when it is held, clean or disassembled. when the hanging rack3is placed to the housing and the tray37is depressed with respect to the sawtooth blade rack321, the sawtooth blade32is exposed out of the protective board322.

As figured inFIG. 18andFIG. 19, a buffer mechanism90is disposed in this embodiment. The buffer mechanism90includes a lifting lever91and a connecting rod92, the lifting lever91is pivot joint to the housing, the left end of the lifting lever91is supported the hanging rack3; two ends of the connecting rod92are respectively movably coupled to the lifting lever91and a cam111, the cam111is disposed near the shaft of the lid11;

As figured inFIG. 18, when the lid11is situated in open position, the lid11draws the lifting lever91to hold up through the connecting rod92, making the lifting lever91held one side of the hanging rack3, so that the hanging rack can not be fell down to the unlock position; meanwhile the ingredient box4is not pierced yet.

As figured inFIG. 19, when the lid11is situated in the close position, the lid11releases to draw the connecting rod92, making the lifting lever91fell down, so that the hanging rack3is released and fell down to the unlock position, the ingredient box4is pierced.

The buffer mechanism90provides a safety to this embodiment, when the lid11is lifted, the piecing can not work until the lid11is covered down. The operation is smooth, it does not need other control mechanism, that is to say, it is applied with the lid11to be a control component, it accord with the operation and the usage habit, this embodiment has advantages of simple, safe and fast.