A belt forming machine for cake products

Abstract

The application relates to the field of food processing technology, in particular to a belt-type forming machine for cake-shaped food, which comprises a rack, a conveying component fixedly arranged in the inside of the rack, a plurality of forming components equidistantly arranged on the top of the conveying component, the forming components being used for food forming, a guide component fixedly arranged in the inside of the rack, the guide component being located on the top of the conveying component and being used for conveying the forming components, the conveying component comprising conveying shafts rotatably arranged at both ends of the inside of the rack, conveying rollers fixedly arranged on the outer walls of the two conveying shafts, two conveying rollers, and a conveying belt arranged between the two conveying rollers. The conveying component drives the forming components to rotate around the guide component, and left and right raw material hoppers and pressing components are arranged. The equipment can be used for feeding and pressing various food, and the food forming efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of food processing technology, specifically to a belt forming machine for biscuit-shaped foods. Background Technology

[0002] Current biscuit-shaped food products are formed in a single process using roller extrusion. After the raw material is loaded onto the feeding roller, the mold roller above it presses the raw material against the feeding roller to form the shape. This method has strict requirements on the softness or hardness of the material; if the material is too soft, it will spill under the movement of the feeding roller; if the material is too hard, the molding will not be effective enough. Furthermore, this method can only produce biscuits of one material or one color, and cannot produce filled biscuits in one go. Also, current biscuit-shaped food products are removed by inverting the mold after forming, which damages the surface pattern of the biscuit and affects its appearance.

[0003] The invention application with publication number CN104114051A discloses a system for preparing round molded baked food. After the food is molded, the outer wall plate of the food is tightly attached to the inner wall of the cavity, which makes it difficult to demold the molded food. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a belt forming machine for biscuit-shaped food products, thereby solving the issues in the prior art.

[0005] A disc-shaped food belt forming machine includes a frame, which is a hollow frame. Multiple sets of filling and compacting components are spaced apart inside the frame. Multiple sets of forming components are also arranged inside the frame. The front and / or rear ends of each set of forming components are connected to a guide component, which connects the multiple forming components into a closed-loop structure that can move circumferentially around the filling and compacting components in a vertical plane. A set of forming components is correspondingly arranged below each set of filling and compacting components. A horizontally movable conveying component is arranged below each set of forming components to provide driving force for the movement of the forming components.

[0006] The molding component includes a molding die, which has at least one molding cavity that is open at both ends. A compression sleeve with an adjustable inner diameter is slidably installed inside the molding cavity. The lower end of the compaction component is provided with a pressure plate that cooperates with the molding cavity.

[0007] As a preferred embodiment of the present invention, the inner wall of the compression sleeve is provided with an air bladder, and the molding die is provided with an air passage switch valve. The compression sleeve moves up and down in the molding cavity, and the air bladder is inflated and deflated by driving the opening and closing of the air passage switch valve.

[0008] As a preferred embodiment of the present invention, the molding die is provided with an annular air groove with an upper opening, the annular air groove is coaxially fitted outside the molding cavity, the outside of the compression sleeve is connected to a compressed air cylinder with a blowing channel, the compressed air cylinder is slidably installed in the annular air groove, the air bag is connected to the blowing channel of the compressed air cylinder, the bottom of the annular air groove is provided with a pressure relief channel, and the air passage switch valve is located between the annular air groove and the pressure relief channel.

[0009] As a preferred embodiment of the present invention, the airway switching valve includes a top spring, the lower end of which is connected to the bottom of the annular air groove, and the upper end of which is connected to an annular piston, which is slidably installed in the annular air groove.

[0010] As a preferred embodiment of the present invention, one end of the pressure relief channel is located on the side wall of the annular gas groove, and the other end of the pressure relief channel is connected to the atmosphere.

[0011] As a preferred embodiment of the present invention, the upper end of the compression sleeve and the upper end of the compression cylinder are connected to a top plate, and a return spring is provided between the top plate and the forming mold.

[0012] As a preferred embodiment of the present invention, the conveying component includes at least two conveying rollers rotatably mounted at both ends inside the frame, and a conveyor belt is sleeved on the outside of the conveying rollers.

[0013] In a preferred embodiment of the present invention, the upper surface of the conveyor belt is in contact with the bottom of the forming mold located above it.

[0014] As a preferred embodiment of the present invention, the guiding component includes multiple guiding sprockets rotatably installed inside the frame and at the outer corners of multiple sets of filling components and compaction components. A guiding chain is wound around the periphery of the guiding sprockets, and the guiding chain is connected to the end of the forming mold.

[0015] As a preferred embodiment of the present invention, an electromagnetic material valve is installed at the bottom of the filling component, and a controller is installed on the frame, wherein the controller and the electromagnetic material valve are electrically connected.

[0016] This invention also discloses a method for processing biscuit-shaped foods using the above-mentioned biscuit-shaped food belt forming machine, comprising the following steps:

[0017] Step 1: The filling component injects raw material into the molding die for the first time;

[0018] Step 2: Start the conveying component. Driven by the conveying component, the molding die containing the raw material moves to the bottom of the compaction component and is initially compacted by the compaction component.

[0019] Step 3: Start the conveying component. Driven by the conveying component, the mold after the raw material is compacted moves to the bottom of the next set of filling components for secondary raw material injection.

[0020] Step 4: Start the conveying component. Driven by the conveying component, the molding die containing the compacted raw material moves to the bottom of the next set of compacting components and is compacted again.

[0021] Step 5: Start the conveyor unit to transport the cookies to the packaging area.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In this invention, the conveying component drives the forming component to rotate around the guiding component, and at the same time, there are spaced filling components and compaction components, which can be used for one-time feeding and pressing of various food ingredients and colors, and the food forming efficiency is high.

[0024] 2. Forward demolding does not damage the surface pattern of biscuit foods, ensuring good appearance integrity.

[0025] 3. In this invention, the output rod of the lifting cylinder drives the pressure plate to move downward, pushing multiple pressure plates downward. These pressure plates move downward and abut against the tops of multiple top plates located at their bottoms, thus pressing the top plates downward. The downward pressing and movement of the top plates causes the compressed air cylinder to move downward along the inner wall of the annular air groove, compressing the air inside the annular air groove. The compressed air inside the annular air groove enters the air blowing channel through the bottom of the air blowing channel and is then compressed from the top of the air blowing channel to the area between the inner wall of the compressed air cylinder and the outer wall of the compression sleeve. It is then delivered through the air blowing hole. The air is pushed into the interior of the elastic air bladder, causing it to gradually deflate and compress the outer wall of the molded food, causing it to shrink inwards as needed. When the bottom of the compressed air cylinder moves downwards and contacts the top of the annular piston, the cylinder continues to move downwards, pushing the annular piston downwards and compressing multiple top springs. When the annular piston moves to the bottom of the pressure relief channel, the channel connects to the inside of the blowing chamber through the annular groove. At this point, the deflated elastic air bladder retracts under the rebound force, returning to its deflated state and separating from the outer wall of the food, facilitating subsequent demolding. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 In this invention Figure 1 A schematic diagram of the partial component structure;

[0028] Figure 3 In this invention Figure 2 A magnified structural diagram of part A;

[0029] Figure 4 This is a schematic diagram of the structure of the guiding component and the molding component in this invention;

[0030] Figure 5 This is a schematic diagram showing the detailed structure of the molded component in this invention;

[0031] Figure 6 This is a schematic cross-sectional view of the molded component in this invention;

[0032] Figure 7 In this invention Figure 6 A schematic diagram of the enlarged structure of part B;

[0033] Figure 8 In this invention Figure 6 A magnified structural diagram of part C.

[0034] In the diagram: 1. Frame; 2. Conveying component; 201. Conveying shaft; 202. Conveying roller; 203. Conveying belt; 204. Power motor; 205. Drive pulley; 206. Driven pulley; 207. Power belt; 3. Guiding component; 301. Guide shaft; 302. Guide sprocket; 303. Guide chain; 4. Forming component; 401. Forming mold; 402. Forming cavity; 403. Compression sleeve; 404. Top plate; 405. Return spring; 406. Elastic air bladder; 407. Air blowing hole; 408. Compressed air cylinder; 409. Air blowing channel; 4010. Annular air groove; 4011. Pressure relief air channel; 4012. Annular piston; 4013. Top spring; 5. Filling component; 501. Feeding pipe; 502. Electromagnetic feed valve; 503. Raw material hopper; 6. Compaction components; 601. Lifting cylinder; 602. Pressure plate; 603. Pressure disc; 604. Fixed crossbeam; 7. Controller. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1 - Figure 8 The technical solution provided by the present invention specifically includes the following embodiments:

[0037] Example 1: A disc-shaped food belt forming machine includes a frame 1, a conveying component 2 fixedly installed inside the frame 1, and a plurality of forming components 4 evenly distributed on the top of the conveying component 2. The forming components 4 are used for forming food. A guiding component 3 is fixedly installed inside the frame 1. The guiding component 3 is located on the top of the conveying component 2 and is used for conveying the forming components 4.

[0038] The conveying component 2 includes conveying shafts 201 rotatably mounted at both ends inside the frame 1. Conveying rollers 202 are fixedly mounted on the outer walls of both conveying shafts 201. There are two conveying rollers 202, and a conveyor belt 203 is sleeved between the two conveying rollers 202. A power motor 204 is fixedly mounted inside the frame 1. A drive pulley 205 is fixedly mounted on the output shaft of the power motor 204. A driven pulley 206 is fixedly mounted at the end of one of the conveying shafts 201. A power belt 207 is sleeved between the drive pulley 205 and the driven pulley 206.

[0039] The guiding component 3 includes four guiding shafts 301, which are arranged in two layers, with two shafts on the left and two on the right in each layer. The four guiding shafts 301 form a rectangular structure in the vertical space. Guide sprockets 302 are installed at both the front and rear ends of the outer wall of the guiding shafts 301. Guide chains 303 are wound around the periphery of the four guide sprockets 302 located on the same side of the front and rear. There are two guide chains 303, which are arranged in a front-to-back pattern.

[0040] The molding component 4 includes a molding die 401, which is fixedly installed between two guide chains 303 distributed front and rear. Multiple molding cavities 402, distributed front and rear, are formed through the upper and lower surfaces of the molding die 401. A compression sleeve 403 is slidably installed inside each molding cavity 402. A top plate 404 is fixedly installed on the top of the outer wall of the compression sleeve 403. This top plate has an inverted L-shaped cross-section, i.e., a flange at the top and a cylindrical sleeve at the bottom. A return spring 405 is fixedly installed between the bottom of the top plate 404 and the top of the molding die 401, and the return spring 405 is fitted onto the outside of the compression sleeve 403.

[0041] Two left-right dispensing components 5 are fixedly installed inside the frame 1. The dispensing components 5 are located between two front and rear guide chains 303. The dispensing components 5 include a raw material hopper 503 located at the top and connected to the frame. Multiple front and rear feeding pipes 501 are fixedly installed at the bottom of the raw material hopper 503. The positions of the feeding pipes 501 are adapted to the positions of the forming cavity 402. Two left-right compaction components 6 are fixedly installed inside the frame 1. The compaction components 6 and the dispensing components 5 are alternately distributed along the left and right direction of the device. A lifting cylinder 601 is fixedly installed at the bottom of the compaction components 6. The lifting cylinder can be an electric cylinder or a pneumatic cylinder. A pressure plate 602 is fixedly installed at the bottom of the output rod of the lifting cylinder 601. Multiple pressure plates 603 distributed front and rear are fixedly installed at the bottom of the pressure plate 602. The positions of the multiple pressure plates 603 correspond one-to-one with the positions of the multiple forming cavities 402. Electromagnetic material valves 502 are fixedly installed at the bottom of the feeding pipe 501. A controller 7 is fixedly installed at the top of the frame 1. The output end of the controller 7 is electrically connected to the electromagnetic material valve 502.

[0042] In this embodiment, the output shaft of the power motor 204 drives the drive pulley 205 to rotate. Further, under the transmission action of the power belt 207, the driven pulley 206, a conveyor shaft 201 connected to the driven pulley 206, and a conveyor roller 202 rotate together. Furthermore, under the combined action of the other conveyor shaft 201 and conveyor roller 202 on the conveyor belt 203, the conveyor belt 203 rotates to the right along the two conveyor rollers 202. Since the top of the conveyor belt 203 abuts against the surface of the forming mold 401 located directly above it, the static friction between the conveyor belt 203 and the forming mold 401 causes the forming mold 401, which is in contact with the top of the conveyor belt 203, to move to the right. And in the front and rear... Under the rotational support of the guide chain 303, the guide sprockets 302, and the guide shaft 301, the front and rear guide chains 303 rotate around the four guide sprockets 302. Through their connection with the front and rear guide chains 303, they drive the remaining multiple forming molds 401 to rotate together. During rotation, the forming molds 401 drive the compression sleeves 403 to move together. When the compression sleeves 403 move to the bottom of a raw material hopper 503 on the left, the power motor 204 is turned off, and the multiple electromagnetic feed valves 502 at the bottom of the left raw material hopper 503 are opened. The food raw materials inside the raw material hopper 503 fall into the multiple compression sleeves 403 directly below it through the multiple feeding pipes 501. Inside the cavity 402, and supported by the top of the conveyor belt 203, the food material filling the cavity 402 will not fall downwards. When both the cavity 402 and the compression sleeve 403 are filled with food material, the electromagnetic material valve 502 is closed to stop the material hopper 503 from continuing to feed. The power motor 204 is then started, causing the conveyor belt 203 to continue rotating to the right. This further causes the mold 401 filled with food material and the compression sleeve 403 to move to the right together until they reach the bottom of a fixed crossbeam 604 located at the left end. Then, the power motor 204 is turned off again, the conveyor belt 203 stops moving, and the lifting cylinder 601 is started, causing the output rod of the lifting cylinder 601 to drive the pressure plate 602 to move downwards. The multiple pressure plates 603 at the front and rear are pushed downwards, causing them to move downwards and abut against the tops of the multiple top plates 404 located at their bottom. This presses the top plates 404 downwards, causing the compression sleeve 403 and the elastic airbag 406 fixed inside the compression sleeve 403 to move downwards together. As the compression sleeve 403 moves downwards, it slides into the molding cavity 402, causing the space formed by the compression sleeve 403 and the molding cavity 402 to continuously contract, thereby squeezing the food raw materials located inside the compression sleeve 403 and the molding cavity 402, thus initially shaping them. Then, the lifting cylinder 601 is activated, causing its output rod to move upwards, lifting the pressure plate 602 along with the pressure plates 603. Finally, the power motor 204 is activated again.The conveyor belt 203 continues to rotate, transporting the food that has completed its initial shaping in the previous step to the bottom of a raw material hopper 503 located on the right. Once the food and the forming mold 401 have moved to the bottom of the raw material hopper 503 on the right, the power motor 204 is turned off again, and the electromagnetic valves 502 located at the bottom of the raw material hopper 503 are opened. This allows the second raw material inside the hopper 503 to fall through the feeding pipe 501 into the compression sleeve 403 at its bottom, which is located on top of the initially shaped food. When the compression sleeve 403 is full of the second raw material, the electromagnetic valves 502 are immediately closed, and the power motor 204 is started to transport the food filled with the second raw material. After the molding die 401 for the second raw material moves to the bottom of the fixed crossbeam 604 on the right, the power motor 204 is turned off, and the lifting cylinder 601 is activated. The output rod of the lifting cylinder 601 moves downward, pushing the pressure plate 602 and pressure plate 603 downward, squeezing the top plate 404 and compression sleeve 403 downward, thus pressing the second raw material together with the food blank formed in the previous step. Then, the lifting cylinder 601 is activated again, causing its output rod to move upward, lifting the pressure plate 602 and pressure plate 603 upward, releasing the downward pressure on the top plate 404. The return force of the reset spring 405 pushes the top plate 404, compression sleeve 403, and elastic airbag 406 upward.

[0043] In embodiment two, an annular air groove 4010 is provided on one side of the molding mold 401 near the top plate 404. The annular air groove 4010 is located around the molding cavity 402. A compressed air cylinder 408 is slidably installed inside the annular air groove 4010. The top of the compressed air cylinder 408 is fixedly connected to the bottom of the flange of the top plate 404. An air blowing channel 409 is provided inside the compressed air cylinder 408. The air blowing channel 409 is inverted L-shaped. The vertical channel of the inverted L-shape passes through the bottom of the compressed air cylinder 408, and the horizontal channel of the inverted L-shape passes through the inner wall of the compressed air cylinder 408. A horizontal air blowing hole 407 is provided through the upper part of the inner wall of the compression sleeve 403. The position of the air blowing hole 407 corresponds to the position of the air blowing channel 409 and they are interconnected. An elastic air bladder 406 is fixedly installed on the inner wall of the compression sleeve 403. The elastic air bladder 406 is located around the opening of the air blowing hole 407. That is, the channel inside the compressed air cylinder 408 is connected to the elastic air bag 406 through the air blowing hole 407 inside the compression sleeve 403.

[0044] An annular piston 4012 is slidably installed inside the annular groove 4010. Multiple top springs 4013 are fixedly installed between the bottom of the annular piston 4012 and the bottom wall of the annular groove 4010. A transverse pressure relief passage 4011 is opened through the inner wall of the annular groove 4010 away from the compression sleeve 403. The pressure relief passage 4011 is located at the bottom of the annular piston 4012, with one end opening on the inner wall of the annular groove 4010 below the annular piston 4012 and the other end opening to the atmosphere.

[0045] In this embodiment, the output rod of the lifting cylinder 601 drives the pressure plate 602 to move downward, pushing the multiple pressure plates 603 downward. The multiple pressure plates 603 move downward and abut against the top of the multiple top plates 404 located at their bottom, thereby pressing the top plates 404 downward. The downward pressing and moving of the top plates 404 drives the compressed air cylinder 408 to move downward along the inner wall of the annular air groove 4010, compressing the air inside the annular air groove 4010. The compressed air inside the annular air groove 4010 enters the air blowing channel 409 through the bottom of the air blowing channel 409. After passing through the interior of 409, the air is compressed from the top of the air blowing channel 409 to the area between the inner wall of the compression cylinder 408 and the outer wall of the compression sleeve 403. Then, it is delivered through the air blowing hole 407 to the interior of the elastic air bladder 406, causing the deflated elastic air bladder 406 to gradually deflate, squeezing the outer wall of the formed food and causing it to shrink appropriately towards the center. When the bottom of the compression cylinder 408 moves downward and contacts the top of the annular piston 4012, as the compression cylinder 408 continues to move downward, it pushes the annular piston 4012 downward, causing multiple... When the top spring 4013 is compressed, and the annular piston 4012 moves to the bottom position of the pressure relief passage 4011, the pressure relief passage 4011 connects with the interior of the air blowing passage 409 through the annular air groove 4010. At this time, the hollow elastic airbag 406 retracts under the action of the rebound force, returning to the deflated state. The air inside the elastic airbag 406 is discharged through the air blowing hole 407 into the area between the outer wall of the compression sleeve 403 and the inner wall of the compression cylinder 408 under the action of the rebound force of the elastic airbag 406, and then discharged into the annular air groove through the air blowing passage 409. After the area inside 4010 is vented, the pressure is discharged outward through the pressure relief duct 4011. Then, the lifting cylinder 601 is activated, causing its output rod to move upward and lift the pressure plate 602 together with the pressure plate 603, releasing the downward pressure on the top plate 404. The rebound force of the return spring 405 pushes the top plate 404, the compression sleeve 403 and the elastic air bag 406 upward. Since the inner wall of the top plate 404 is separated from the outer wall of the food after it is deflated, the elastic air bag 406 will not carry the molded food upward when it moves upward, thus facilitating the demolding process of the food.

[0046] In Example 3, the diameter of the pressure plate 603 is larger than the inner diameter of the compression sleeve 403;

[0047] In this embodiment, by setting the size of the pressure plate 603 to be larger than the diameter of the compression sleeve 403, the pressure plate 603 can be prevented from being directly inserted into the inside of the compression sleeve 403, thereby ensuring that the pressure plate 603 can press on the top of the top plate 404 and push the top plate 404 together with the compression sleeve 403 downward.

[0048] In embodiment four, the top of the conveyor belt 203 is attached to the bottom of the forming mold 401 located on top of it;

[0049] In this embodiment, since the top of the conveyor belt 203 is in contact with the bottom of the forming mold 401 located on top of it, the static friction between the two allows the conveyor belt 203 to move together with the forming mold 401 when it is running, thus causing the entire guiding component 3 and forming component 4 to run.

[0050] In this invention, a belt forming machine for biscuit-shaped food is operated by starting a power motor 204. The output shaft of the power motor 204 drives the drive pulley 205 to rotate. Further, under the transmission action of the power belt 207, the driven pulley 206, a conveyor shaft 201 connected to the driven pulley 206, and a conveyor roller 202 rotate together. Furthermore, under the combined action of the other conveyor shaft 201 and conveyor roller 202 on the conveyor belt 203, the conveyor belt 203 rotates to the right along the left and right conveyor rollers 202. Since the top of the conveyor belt 203 abuts against the surface of the forming mold 401 located directly above it, the static friction between the conveyor belt 203 and the forming mold 401 drives the conveyor belt... The forming molds 401, which are in contact with the top of 203, move to the right together. Under the rotational support of the front and rear guide chains 303, multiple guide sprockets 302, and guide shaft 301, the front and rear guide chains 303 rotate around the four guide sprockets 302. Through their connection with the front and rear guide chains 303, they drive the remaining multiple forming molds 401 to rotate together. During rotation, the forming molds 401 drive the compression sleeve 403 to move together. When the compression sleeve 403 moves to the bottom of a raw material hopper 503 located on the left, the power motor 204 is turned off, and multiple electromagnetic valves 502 at the bottom of the left raw material hopper 503 are opened, releasing the food inside the raw material hopper 503. Raw materials fall through multiple feeding pipes 501 into the interiors of multiple compression sleeves 403 and the forming cavity 402 directly below them. Supported by the top of the conveyor belt 203, the food materials filling the forming cavity 402 do not fall downwards. Once both the forming cavity 402 and the compression sleeves 403 are full of food materials, the electromagnetic valves 502 are closed, stopping the continued feeding from the raw material hopper 503. The power motor 204 is then started, causing the conveyor belt 203 to continue rotating to the right. This further causes the forming mold 401 and compression sleeves 403, filled with food materials, to move to the right together until they reach the bottom of a fixed crossbeam 604 located at the left end. The power motor 204 is then turned off again. The conveyor belt 203 stops moving, and the lifting cylinder 601 is started, causing the output rod of the lifting cylinder 601 to drive the pressure plate 602 to move downward, pushing the multiple pressure plates 603 at the front and rear downward. The multiple pressure plates 603 move downward and abut against the top of the multiple top plates 404 located at their bottom, thereby pressing the top plates 404 downward. The downward pressing and moving of the top plates 404 causes the compression sleeve 403 and the elastic air bladder 406 fixed inside the compression sleeve 403 to move downward together. As the compression sleeve 403 moves downward, it will slide into the interior of the forming cavity 402, causing the space formed by the compression sleeve 403 and the forming cavity 402 to continuously contract, thereby squeezing the food raw materials located inside the compression sleeve 403 and the forming cavity 402, so as to initially shape them.

[0051] Meanwhile, as the top plate 404 moves downward, the return spring 405 is compressed. The top plate 404 also drives the compressed air cylinder 408 to move downward along the inner wall of the annular air groove 4010, compressing the air inside the annular air groove 4010. The compressed air inside the annular air groove 4010 enters the air blowing channel 409 through the bottom of the air blowing channel 409, and is compressed from the top of the air blowing channel 409 to the area between the inner wall of the compressed air cylinder 408 and the outer wall of the compression sleeve 403. Then, it is delivered to the interior of the elastic air bladder 406 through the air blowing hole 407, causing the deflated elastic air bladder 406 to gradually deflate, squeezing the outer wall of the formed food, causing the outer wall of the food to shrink appropriately towards the center. When the bottom of the compressed air cylinder 408 moves downward and the annular air groove 4010 is compressed, the return spring 405 is compressed. After the top of piston 4012 contacts the air cylinder 408, as the compression cylinder 408 continues to move downward, it pushes the annular piston 4012 downward, causing multiple top springs 4013 to be compressed. When the annular piston 4012 moves to the bottom position of the pressure relief passage 4011, the pressure relief passage 4011 connects to the interior of the blowing chamber 409 through the annular groove 4010. At this time, the deflated elastic air bladder 406 retracts under the action of the rebound force, returning to the deflated state. The air inside the elastic air bladder 406 is discharged through the blowing hole 407 into the area between the outer wall of the compression sleeve 403 and the inner wall of the compression cylinder 408 under the action of the rebound force of the elastic air bladder 406. Then, it is discharged into the area inside the annular groove 4010 through the blowing chamber 409, and then through the pressure relief passage 4011 to... After the food is discharged, the lifting cylinder 601 is activated, causing its output rod to move upward and lift the pressure plate 602 along with the pressure plate 603, releasing the downward pressure on the top plate 404. The return force of the return spring 405 pushes the top plate 404, compression sleeve 403, and elastic airbag 406 upward. Since the inner wall of the top plate 404 separates from the outer wall of the food after it collapses, the elastic airbag 406 will not carry the molded food upward when it moves upward, thus facilitating the demolding process. Then, the power motor 204 is activated again, causing the conveyor belt 203 to continue rotating, conveying the food that has completed the preliminary molding in the previous step to the bottom of a raw material hopper 503 located on the right. When the food that has completed the preliminary molding and the molding mold 401 move to the raw material hopper on the right, the food is ready for demolding. After reaching the bottom of 503, turn off the power motor 204 again and open the electromagnetic valves 502 located at the bottom of the raw material hopper 503 on the right. This allows the second raw material inside the raw material hopper 503 to fall through the feeding pipe 501 into the compression sleeve 403 at its bottom, which is located on top of the initially formed food. When the compression sleeve 403 is filled with the second raw material, immediately close the electromagnetic valves 502 and start the power motor 204. Move the forming mold 401 filled with the second raw material to the bottom of the fixed crossbeam 604 on the right. Then, turn off the power motor 204 and start the lifting cylinder 601. The output rod of the lifting cylinder 601 moves downward, pushing the pressure plate 602 and the pressure plate 603 downward, squeezing the top plate 404 and the compression sleeve 403 downward.The second raw material is pressed together with the food blank formed in the previous step. Then, the lifting cylinder 601 is activated, causing its output rod to move upwards, lifting the pressure plate 602 along with the pressure disc 603. This releases the downward pressure on the top plate 404. The return force of the reset spring 405 pushes the top plate 404, compression sleeve 403, and elastic airbag 406 upwards.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A belt forming machine for biscuit-shaped food, comprising a frame (1), characterized in that: The frame is a hollow frame, and multiple sets of filling components (5) and compaction components (6) are arranged at intervals inside the frame; multiple sets of forming components (4) are also arranged inside the frame, and the front end and / or rear end of the multiple sets of forming components (4) are connected to a guide component (3). The guide component (3) connects the multiple sets of forming components into a closed loop structure that moves circumferentially around the filling components (5) and compaction components (6) in a vertical plane. A set of forming components (4) is arranged below each set of filling components (5) and compaction components (6); a horizontally moving conveying component (2) is arranged below the multiple sets of forming components (4) to provide driving force for the movement of the forming components. The molding component (4) includes a molding mold (401), which is provided with at least one molding cavity (402) that is open at both the top and bottom. A compression sleeve (403) with an adjustable inner diameter is slidably installed inside the molding cavity (402). The lower end of the compaction component is provided with a pressure plate (603) that cooperates with the molding cavity (402). The inner wall of the compression sleeve (403) is provided with an airbag (406), and the molding die (401) is provided with an air passage switch valve. The compression sleeve (403) moves up and down in the molding cavity (402). By driving the opening and closing of the air passage switch valve, the airbag (406) is inflated and deflated. The molding die (401) is provided with an annular air groove (4010) with an upper opening. The annular air groove (4010) is coaxially fitted outside the molding cavity (402). The compression sleeve (403) is connected to a compressed air cylinder (408) with a blowing channel. The compressed air cylinder (408) is slidably installed inside the annular air groove (4010). The air bag (406) is connected to the blowing channel of the compressed air cylinder (408). The bottom of the annular air groove (4010) is provided with a pressure relief channel (4011). The air passage switch valve is located between the annular air groove (4010) and the pressure relief channel (4011).

2. The disc-shaped food belt forming machine according to claim 1, characterized in that: The airway switching valve includes a top spring (4013), the lower end of which is connected to the bottom of an annular air groove (4010), and the upper end of which is connected to an annular piston (4012), which is slidably installed in the annular air groove (4010).

3. The disc-shaped food belt forming machine according to claim 1, characterized in that: One end of the pressure relief channel (4011) is located on the side wall of the annular gas groove (4010), and the other end of the pressure relief channel (4011) is connected to the atmosphere.

4. The disc-shaped food belt forming machine according to claim 1, characterized in that: The upper end of the compression sleeve (403) and the upper end of the compression cylinder (408) are connected to a top plate, and a return spring (405) is provided between the top plate and the forming mold (401).

5. The disc-shaped food belt forming machine according to claim 1, characterized in that: The conveying component (2) includes at least two conveying rollers (202) rotatably mounted at both ends inside the frame (1), and a conveyor belt (203) is sleeved on the outside of the conveying rollers (202).

6. The disc-shaped food belt forming machine according to claim 5, characterized in that: The upper surface of the conveyor belt (203) is in contact with the bottom of the forming mold (401) located above it.

7. The disc-shaped food belt forming machine according to claim 1, characterized in that: The guiding component (3) includes a plurality of guide sprockets (302) rotatably mounted inside the frame (1), and a guide chain (303) is wound around the periphery of the guide sprockets (302), and the guide chain (303) is connected to the end of the forming mold (401).

8. A method for processing biscuit-shaped foods using a biscuit-shaped food belt forming machine according to any one of claims 1 to 7, characterized in that: Includes the following steps: Step 1: The filling component (5) initially injects raw material into the molding die (401); Step 2: Start the conveying component (2). Driven by the conveying component, the molding die (401) containing the raw material moves to the bottom of the compaction component (6) and is initially compacted by the compaction component. Step 3: Start the conveying component (2). Driven by the conveying component, the molding die (401) after the raw material is compacted moves to the next set of filling components (5) for secondary raw material injection. Step 4: Start the conveying component (2). Driven by the conveying component, the molding die (401) containing the compacted raw material moves to the next set of compacting components (6) and is compacted again. Step 5: Start the conveyor (2) to transport the biscuits to the packaging area.

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