A skin folding machine
The stacking machine structure, which uses a three-layer conveyor belt and a reciprocating rod, solves the problem of uneven stacking, achieves efficient and neat stacking, and reduces production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING YANGZI GRAIN & OIL FOOD PROCESSING CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-14
AI Technical Summary
Existing leather stacking machines do not stack leather neatly, failing to meet the needs of customers with high requirements.
The system employs a three-layer conveyor belt structure, using different motion modes to achieve dough flipping and stacking operations. A pull rod drives the conveyor to reciprocate, and combined with variable frequency motor control, it ensures the continuity and smoothness of dough stacking.
It significantly improves the neatness and efficiency of skin stacking, reduces production costs, and enhances the market value of skin stacking machines.
Smart Images
Figure CN224482800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a skin-stacking machine, belonging to the technical field of food machinery and equipment. Background Technology
[0002] In the processing of noodle products, many dough-stacking machines require manual loading of trays. Workers place the trays onto the stacking machine to stack the dough, and then manually transport the stacked dough to the punching machine for punching. This process is labor-intensive. To address this issue, CN220088417U provides an automatic tray-stacking and punching machine that automatically places trays at the stacking station and automatically transports the trays containing the dough to the punching station after stacking. However, existing dough-stacking machines still suffer from uneven stacking, failing to meet the needs of demanding customers. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the problems existing in the prior art and provide a skin-stacking machine that can significantly improve the skin-stacking effect.
[0004] The technical solution of this utility model to solve its technical problem is as follows: A leather stacking machine includes a frame and a first conveyor side plate, a second conveyor side plate, a third conveyor side plate and a pallet installed on the frame. The pallet is located below the second conveyor side plate. A first conveyor is installed on the first conveyor side plate. A second conveyor is installed on the second conveyor side plate and moves along the second conveyor side plate. The second conveyor is connected to a sprocket reciprocating mechanism via a tie rod. A telescopic conveyor side frame is provided on the third conveyor side plate and moves along the third conveyor side plate. A roller is provided on the telescopic conveyor side frame and the roller is connected to the lower conveyor belt.
[0005] The further improved technical solution of this utility model is as follows:
[0006] Preferably, the first conveyor includes a pair of fourth passive rollers and an upper conveyor belt wrapped around the fourth passive rollers. One of the fourth passive rollers is connected to a second passive roller via a sprocket drive mechanism. The second passive roller is connected to a driving roller, a first passive roller, and a third passive roller via a lower conveyor belt. The driving roller is connected to a second motor.
[0007] Preferably, the sprocket drive mechanism includes a first sprocket, a first chain, and a second sprocket connected together. The second sprocket is connected to the first sprocket via the first chain. The first sprocket is connected to a second driven roller via a coaxial coupling. The second sprocket is connected to a fourth driven roller via a coaxial coupling.
[0008] Preferably, the sprocket reciprocating mechanism includes a third motor, a second chain, a third sprocket, and a drive sprocket. The third motor is connected to the drive sprocket, and the drive sprocket is connected to the third sprocket via the second chain. The second chain is connected to the pull rod.
[0009] This invention relates to a dough stacking machine that uses three layers of conveyor belts to achieve double-sided powdering and stacking of dough sheets. The three conveyor belts are the upper conveyor belt, lower conveyor belt, and second conveyor belt of the first conveyor. Each layer of conveyor belts works together through different motion patterns to achieve the process objectives. The upper and lower conveyor belts are driven by the same motor but run in opposite directions, enabling the dough sheets to be flipped and thus achieving double-sided powdering, preventing the dough sheets from sticking together and preparing for subsequent stacking. The second conveyor, as the last layer of conveyor belt, is driven by a pull rod to perform a reciprocating motion. A fixed support plate is installed below it. The dough sheets, after being powdered on both sides, fall into the second conveyor from the end of the lower conveyor belt and move in a certain direction with the second conveyor. When the second conveyor reaches the front end, the dough sheets fall into the support plate. At this point, the second conveyor reverses its movement. When it reaches the rear end, the dough sheets fall into the support plate due to inertia. This process is repeated, and the dough sheets are stacked layer by layer on the support plate to achieve the stacking function.
[0010] Preferably, the lower end of the second conveyor is provided with rollers, which cooperate with guide rails provided on the second conveyor side plate.
[0011] Preferably, the telescopic conveyor side frame is provided with pulleys, and the pulleys cooperate with the slide rails provided on the third conveyor side plate.
[0012] Preferably, one end of the telescopic conveyor side frame is provided with a first passive roller and the other end is provided with a fifth passive roller. The first passive roller and the fifth passive roller are connected to the active roller through the lower conveyor belt.
[0013] Preferably, the pallet is installed at the front end of the frame, the rear end of the frame is equipped with a leather-feeding bracket, and the two ends of the first conveyor are respectively equipped with a dough-making machine and a powder-spreading machine.
[0014] Preferably, the lower end of the third conveying side plate is provided with a first upper fixing plate and a second upper fixing plate, the upper end of the second conveyor is provided with a first lower fixing plate and a second lower fixing plate, a first guide chain is connected between the first upper fixing plate and the first lower fixing plate, and a second guide chain is connected between the second upper fixing plate and the second lower fixing plate.
[0015] Preferably, the first guide chain is connected to the first sprocket, the second guide chain is connected to the second sprocket, the first sprocket and the second sprocket are respectively connected to the side plate via shafts, and the side plate is located at the lower end of the side frame of the telescopic conveyor.
[0016] The advantages of this utility model are that the overall structure is compact, it is installed on a fixed bracket, occupies little space, and the entire device can be installed and disassembled within a limited space, which reduces production costs, improves the neatness of the stacked skins, and significantly improves the working efficiency of the stacking machine. Attached Figure Description
[0017] Figure 1 This is the front view of the present invention.
[0018] Figure 2 This is a top view of the present invention.
[0019] Figure 3 This is a schematic diagram of the double-sided reciprocating conveying and powdering structure in this utility model.
[0020] Figure 4 This is a diagram showing the extended state of the side frame of the telescopic conveyor in this utility model.
[0021] Figure 5 This is a diagram showing the retracted state of the side frame of the telescopic conveyor in this utility model.
[0022] Figure 6 This is a diagram showing the state of the second conveyor in this utility model when it moves to the left end.
[0023] Figure 7 This is a diagram showing the state of the second conveyor in this invention when it moves to the right end.
[0024] In the diagram: 1. Frame, 2. Dough machine, 3. First motor, 4. Driven roller, 5. First driven roller, 6. Powder spreader, 7. First conveyor, 8. Leather feeding bracket, 9. First conveyor side plate, 10. Nylon pallet, 11. Tie rod, 12. Second conveyor side plate, 13. Telescopic conveyor side frame, 14. Second motor, 15. Second driven roller, 16. Third driven roller, 17. Fourth driven roller, 18. First sprocket, 19. Second sprocket, 20. Upper conveyor belt, 30. Lower conveyor belt, 41. Third motor, 42. Second chain, 43. Second conveyor, 51. Side plate, 52. Fifth driven roller, 53. First guide chain, 54. First sprocket, 55. Second guide chain, 56. Second sprocket, 57. Sixth driven roller. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. However, the present invention is not limited to the examples given.
[0026] like Figure 1 and Figure 2As shown, a dough-stacking machine includes a frame 1 and a dough sheet stacking machine 2, a flour-spreading machine 6, a dough sheet placement bracket 8, a first conveyor side plate 9, a second conveyor side plate 12, and a third conveyor side plate mounted on the frame. A nylon tray 10 is located below the second conveyor side plate 12 and is installed at the front end of the frame 1 for stacking dough sheets. The dough sheet placement bracket 8 is installed at the rear end of the frame 1 for placing dough rolls. A first conveyor 7 is mounted on the first conveyor side plate 9, with a dough sheet stacking machine 2 located at each end of the first conveyor 7, above the first conveyor 7. Two sets of flour-spreading machines 6 are located on either side of the two dough sheets 2. One set of flour-spreading machines is located above the upper conveyor belt 20, and the other set is located above the lower conveyor belt 30. The upper conveyor belt 20 and the lower conveyor belt 30 rotate in opposite directions.
[0027] like Figure 3As shown, the first conveyor 7 includes a pair of fourth passive rollers 17 and an upper conveyor belt 20 wrapped around the fourth passive rollers 17. One of the fourth passive rollers 17 is connected to the second passive roller 15 via a sprocket drive mechanism, which includes a first sprocket 18, a first chain, and a second sprocket 19. Specifically, one of the pair of fourth passive rollers 17 is connected to the second sprocket 19 via a coaxial connector. The second sprocket 19 is connected to the first sprocket 18 via a first chain. The first sprocket 18 is connected to the second passive roller 15 via a coaxial connector. The second passive roller 15 is connected to the driving roller 4, the first passive roller 5, and the third passive roller 16 via a lower conveyor belt 30. Two passive rollers are installed on the lower conveyor belt 30 between the first passive roller 5 and the driving roller 4. The driving roller 14 is driven by a second motor 14 to rotate, thereby driving the upper and lower conveyor belts and the passive rollers to rotate. The first passive roller 5 is installed at one end of the telescopic conveyor side frame 13, and the other end of the telescopic conveyor side frame 13 is provided with a fifth passive roller 52. The sixth passive roller 57 and the active roller 4 are installed on the frame 1. The telescopic conveyor side frame 13, the lower conveyor belt 30 and the rollers connected to it constitute the telescopic conveyor, which is located between the first conveyor 7 and the second conveyor 43. The telescopic conveyor side frame 13 is set on the third conveyor side plate located at the upper end of the frame 1 and can move along the third conveyor side plate. Specifically, the third conveyor side plate is provided with a slide rail along the length direction, and the telescopic conveyor side frame 13 is provided with pulleys, which are set on the slide rail and can move back and forth along the slide rail. In addition, the lower end of the telescopic conveyor side frame 13 is provided with a side plate 51, on which a first sprocket 54 and a second sprocket 56 are installed. A first upper fixing plate and a second upper fixing plate are provided at the lower end of the third conveyor side plate of the frame 1, and a first lower fixing plate and a second lower fixing plate are provided at the upper end of the second conveyor 43. The cross-sections of the first upper fixing plate, the second upper fixing plate, the first lower fixing plate, and the second lower fixing plate are all L-shaped. One side is used to fix the third conveyor side plate of the frame 1 or the second conveyor 43, and the other side is used to fix the guide chain. The first upper fixing plate and the first lower fixing plate are connected by a first guide chain 53, and the second upper fixing plate and the second lower fixing plate are connected by a second guide chain 55. The first guide chain 53 is connected to the first sprocket 54, and the second guide chain 55 is connected to the second sprocket 56 (see...). Figure 6 and Figure 7 Thus, one end of the first guide chain 53 and the second guide chain 55 are fixed to the second conveyor 43, and the other end is fixed to the frame 1. The first guide chain 53 is wound around the first sprocket 54, and the second guide chain 55 is wound around the second sprocket 56. The first sprocket 54 and the second sprocket 56 are respectively connected to the side plate 51 via shafts. The sixth driven roller 57 is fixed to the frame 1, and its position remains unchanged. Figure 6 and Figure 7As shown in the motion diagram, when the pull rod 11 moves from the leftmost end to the rightmost end, it pulls the second conveyor 43 to move from left to right. When the second conveyor 43 moves to the right, the first chain 53 and the second chain 55 fixed on the second conveyor 43 also move to the right. The second chain 55 pulls the second sprocket 56 to move axially to the right. Since the shaft is fixed to the side plate 51 of the telescopic conveyor side frame 13, it drives the entire telescopic conveyor to move to the right, thus causing the lower conveyor belt 30 to retract to the right. When the pull rod 11 moves from the rightmost end to the leftmost end, the pull rod 11 pulls the second conveyor 43 to move from right to left. When the second conveyor 43 moves to the left, the first chain 53 and the second chain 55 fixed on the second conveyor 43 also move to the left. The first chain 53 pulls the first sprocket 54 to move to the left. Since the shaft of the first sprocket 54 is fixed on the side plate 51 of the telescopic conveyor side frame 13, it drives the entire telescopic conveyor to move to the left, so that the lower conveyor belt 30 extends to the left.
[0028] like Figure 4 and Figure 5 As shown, a second conveyor 43 is mounted on the second conveyor side plate 12. The second conveyor 43 includes a drive roller driven by the first motor 3 and a driven roller connected to the drive roller via a conveyor belt. Side supports are provided on both sides of the lower end of the second conveyor 43, and rollers are mounted on the side supports. Guide rails are provided along the length of the second conveyor side plate 12, and the rollers are mounted on the guide rails and can move back and forth along the guide rails. The rear side support of the second conveyor 43 is connected to the second chain 42 via a pull rod 11. The second chain 42 connects the third sprocket and the drive sprocket, which is driven by the third motor 41. The pull rod 11 is fixed to the second chain 42. When the third motor 41 drives the second chain 42 to rotate in a circular motion, the pull rod 11 moves in a circular motion with the second chain 42. The other end of the pull rod 11 is fixed to the side support of the second conveyor 43. Figure 2 As shown, when the pull rod 11 moves to the leftmost end of the second chain 41, the second conveyor 43 is pulled to the front end along with the pull rod 11, and the sheet material on the second conveyor 43 falls into the front end of the nylon pallet 10; as Figure 3 As shown, when the pull rod 11 moves to its rightmost end with the second chain 41, the second conveyor 43 is pulled to the right by the pull rod 11. At this time, the dough sheets on the second conveyor 43 also fall to the right onto the nylon pallet 10. By repeating the above movements, the dough sheets can be stacked on the nylon plate. The first motor 3, the second motor 14, and the third motor 41 are all variable frequency motors. The continuity and smoothness of the stacking are achieved through variable frequency speed control, which significantly improves the working efficiency of the stacking machine.
[0029] The dough press 2 is driven by a motor to rotate the pressing rollers. When the dough enters the press 2, it is pressed by the pressing rollers. After being pressed, the dough exits the dough press 2 and falls onto the first conveyor 7, which is installed on the first conveyor side plate 9, and moves forward with the first conveyor 7. When the dough moves forward with the first conveyor 7 to the tail of the conveyor, it automatically falls onto the lower conveyor belt 30, which is installed on the side frame of the telescopic conveyor, and moves backward with the lower conveyor belt 30. The lower conveyor belt 30 is driven by the drive roller 4 and the first driven roller 5 to rotate continuously. The drive roller 4 is driven by the second motor 14 to rotate. The dough moves forward and falls freely from the second belt onto the third belt, continuing to move with the third belt. The third belt is fixed by the conveyor side plate 12 and rotates with the first motor 3. The pull rod 11 drives the second conveyor 43 to perform reciprocating linear motion through the rotation of the sprocket structure.
[0030] This invention employs a double-sided reciprocating conveying and powder-spreading structure. The second motor 14 drives the active roller 4 to rotate counter-clockwise, thereby driving the lower conveyor belt 30 to the left. Simultaneously, the counter-clockwise movement of the active roller 4 drives the second passive roller 15 to rotate clockwise. The first sprocket 18 mounted on the second passive roller 15 also rotates clockwise. The first sprocket 18 drives the second sprocket 19 to rotate clockwise via the first chain, thereby driving the fourth passive roller 17 connected to the second sprocket 19 to rotate clockwise, ultimately driving the upper conveyor belt 20 to the right. In actual operation, the dough sheet first falls onto the upper conveyor belt 20. The powder-spreading machine 6 on the right spreads powder onto the dough sheet. After being conveyed to the right by the upper conveyor belt 20 to the fourth passive roller 17, the dough sheet falls onto the lower conveyor belt 30 with its back side facing up. The lower conveyor belt 30 then drives the dough sheet to the left to be powdered by the powder-spreading machine 6, thus achieving double-sided reciprocating conveying and powder-spreading. After the dough is sprinkled with flour on both sides, it continues to be conveyed to the left to the first passive roller 5, where it falls into the second conveyor 43. The reciprocating motion of the second conveyor 43 achieves the stacking of the dough. During the stacking process, since the pull rod 11 is fixed to the second chain 42, when the third motor 41 drives the second chain 42 to rotate, the pull rod 11 moves in a circular motion along with the second chain 42. The other end of the pull rod 11 is fixed to the side frame of the second conveyor 43. When the pull rod 11 moves to the leftmost end of the second chain 42, the second conveyor 43 is pulled to the front along with the pull rod 11. At this time, the second conveyor 43 conveys to the left, and the dough on it falls into the front end of the nylon pallet 10 (see...). Figure 2 ).like Figure 3As shown, when the pull rod 11 moves to the rightmost end of the second chain 42 along with the pull rod 11, the second conveyor 43 moves to the right, and the dough on the second conveyor 43 also moves to the rightmost end. The second conveyor 43 continues to convey to the left, and the dough falls into the rear end of the nylon pallet 10. By repeating the above movements, the dough can be stacked on the nylon pallet 10. The stacking machine of this utility model uses the pull rod 11 to drive the second conveyor 43 to move left and right, and the nylon pallet 10 is fixed to achieve the stacking function, resulting in neater stacked dough.
[0031] Additionally, two limiters are installed on frame 1 above the second conveyor 43 (see...). Figure 1 (At points A and B), the limit switch uses the SPB2-M12BN50-DNS-C1 sensor from Schonbuch, Germany.
[0032] In actual operation, the dough roll is placed on the dough sheet support 8, and then manually fed into the dough machine 2. It is then rolled to the required thickness. After the dough sheet has been rolled twice by the dough machine 2, it reaches the desired thickness and toughness. As the dough sheet falls freely from the secondary dough machine 2 onto the first conveyor 7, which is fixed by the first conveyor side plate 9, the right-side powder sprinkler 6 begins to sprinkle powder onto the dough sheet on the conveyor belt of the first conveyor 7. The conveyor belt of the first conveyor 7 (upper conveyor belt 20) is driven by the drive roller 4 and the first driven roller 5 in a reciprocating rotational motion. The drive roller 4 is driven by the second motor 14, and the conveyor belt speed can be adjusted to the required operating speed via the frequency converter of the second motor 14. As the dough sheet falls from the first conveyor belt onto the next conveyor belt (lower conveyor belt 30), the left-side powder sprinkler 6 works synchronously. The lower conveyor belt 30 follows the drive roller 4 and the first driven roller 5 in a reciprocating rotational motion. The dough sheets fall onto the third conveyor belt, the second conveyor belt 43, driven by the first motor 3. The second conveyor belt 43 is driven by the pull rod 11, which rotates via the third motor 41, and then reciprocates through the third sprocket and the second chain 42. As the dough sheets fall from the third conveyor belt onto the nylon pallet 10, the reciprocating motion of the third conveyor belt results in repeated stacking of the dough sheets. A limit switch ensures precise positioning of the third conveyor belt, allowing for accurate stacking of the dough sheets. This cycle repeats until the dough sheets fall freely onto the nylon pallet 10, where they are stacked. The nylon pallet 10 is then manually moved to a fixed workbench to produce the desired finished product. This novel dough stacking machine combines the technological advantages of traditional dough stacking machines with the neatness of stacked dough sheets, significantly enhancing its market value.
[0033] In addition to the embodiments described above, this utility model may have other implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.
Claims
1. A leather stacking machine, characterized in that: The device includes a frame and a first conveyor side plate, a second conveyor side plate, a third conveyor side plate, and a pallet mounted on the frame. The pallet is located below the second conveyor side plate. A first conveyor is mounted on the first conveyor side plate. A second conveyor is mounted on the second conveyor side plate and moves along the second conveyor side plate. The second conveyor is connected to a sprocket reciprocating mechanism via a tie rod. A telescopic conveyor side frame is mounted on the third conveyor side plate and moves along the third conveyor side plate. A roller is mounted on the telescopic conveyor side frame and is connected to the lower conveyor belt.
2. The leather-folding machine according to claim 1, characterized in that: The first conveyor includes a pair of fourth passive rollers and an upper conveyor belt wrapped around the fourth passive rollers. One of the fourth passive rollers is connected to a second passive roller via a sprocket drive mechanism. The second passive roller is connected to a driving roller, a first passive roller, and a third passive roller via a lower conveyor belt. The driving roller is connected to a second motor.
3. The leather-folding machine according to claim 2, characterized in that: The sprocket drive mechanism includes a first sprocket, a first chain, and a second sprocket connected together. The second sprocket is connected to the first sprocket via the first chain. The first sprocket is connected to a second driven roller via a coaxial coupling. The second sprocket is connected to a fourth driven roller via a coaxial coupling.
4. The leather stacking machine according to claim 1, characterized in that: The sprocket reciprocating mechanism includes a third motor, a second chain, a third sprocket, and a drive sprocket. The third motor is connected to the drive sprocket, and the drive sprocket is connected to the third sprocket via the second chain. The second chain is connected to a pull rod.
5. The leather-folding machine according to claim 1, characterized in that: The lower end of the second conveyor is provided with rollers, which cooperate with guide rails set on the second conveyor side plate.
6. The leather stacking machine according to claim 1, characterized in that: The telescopic conveyor side frame is equipped with pulleys, which cooperate with the slide rails set on the third conveyor side plate.
7. The leather stacking machine according to claim 1, characterized in that: The telescopic conveyor has a first passive roller at one end and a fifth passive roller at the other end. The first passive roller and the fifth passive roller are connected to the drive roller through the lower conveyor belt.
8. The leather-folding machine according to claim 1, characterized in that: The pallet is installed at the front end of the frame, and a leather-feeding bracket is installed at the rear end of the frame. A dough-making machine and a powder-spreading machine are respectively installed at both ends of the first conveyor.
9. A leather-folding machine according to claim 1, characterized in that: The lower end of the third conveyor side plate is provided with a first upper fixing plate and a second upper fixing plate, and the upper end of the second conveyor is provided with a first lower fixing plate and a second lower fixing plate. A first guide chain is connected between the first upper fixing plate and the first lower fixing plate, and a second guide chain is connected between the second upper fixing plate and the second lower fixing plate.
10. A leather-folding machine according to claim 9, characterized in that: The first guide chain is connected to the first sprocket, and the second guide chain is connected to the second sprocket. The first sprocket and the second sprocket are respectively connected to the side plate via shafts. The side plate is located at the lower end of the side frame of the telescopic conveyor.