Automatic packing paper machine for encrusting

Abstract

The utility model relates to an automatic stuffing packing paper machine which comprises a frame body, a dry powder device and a stuffing device are arranged on the frame body, a conveying belt is further arranged on the frame body, the conveying belt is arranged on the lower sides of the dry powder device and the stuffing device, and a box body is arranged at the front end of the conveying belt in the advancing direction. A supporting frame used for fixing a packing paper roll is arranged in the box body, a paper cutting device used for cutting packing paper is further arranged in the box body, a paper suction device is arranged on the lower side of a belt body on the upper side of the conveying belt, the paper suction device comprises an air pump, and the air pump is arranged in the box body. And the air extracting pump is communicated with the paper sucking device through a ventilation hose. The device has the advantages of being small in size, simple in structure and high in automation degree.

Description

Technical Field

[0001] This application relates to the technical field of food processing machinery, and in particular to an automatic filling and paper-pressing machine. Background Technology

[0002] The filling machine mainly produces raw dough with fillings. Raw dough has a certain stickiness, which can cause the product to stick in the following production steps. If the product sticks to the product carrier, it will be damaged. It is necessary to put special anti-stick paper on the bottom of the product after the filling machine outputs the filling to ensure the integrity of the product in subsequent production.

[0003] In related technologies, a paper pad machine includes a paper pad unwinding mechanism, a paper pad buffer mechanism, a paper pad fixed-length cutting mechanism, a paper pad vacuum conveying mechanism, and a food conveyor belt. The paper pad vacuum conveying mechanism is connected to the food conveyor belt. The paper pad unwinding mechanism releases the paper pad, which sequentially passes through the paper pad buffer mechanism, the paper pad fixed-length cutting mechanism, and the paper pad vacuum conveying mechanism. The paper pad buffer mechanism is used to store the paper pad. The paper pad fixed-length cutting mechanism cuts the paper pad to produce paper pad sheets, and the paper pad sheet vacuum conveying mechanism conveys the produced paper pads to the connection point with the food conveyor belt to contact the food.

[0004] Regarding the aforementioned technologies, the inventors believe that existing paper padding machines have complex structures, are bulky, occupy a large space, are difficult to disassemble and clean, have high maintenance costs, low automation levels, require frequent manual adjustments, and are complex to operate. Summary of the Invention

[0005] To simplify the paper-filling equipment, reduce the difficulty of operation, and improve the degree of automation, this application provides an automatic paper-filling machine for stuffing.

[0006] The automatic filling and paper-covering machine provided in this application adopts the following technical solution:

[0007] An automatic filling and paper-covering machine includes a frame, on which are mounted a dry powder device for sprinkling powder and a filling device for producing filled dough. A conveyor belt is also mounted on the frame, positioned below the dry powder device and the filling device. A housing is located at the front end of the conveyor belt in its forward direction. A support frame for mounting paper rolls is housed within the housing. A paper-cutting device for cutting the paper is also located within the housing. A paper-feeding device is positioned between the paper-cutting device and the support frame. A paper-suction device is also mounted on the conveyor belt to ensure the paper remains relatively stationary with respect to the conveyor belt. An air pump is also located within the housing, and the air pump is connected to the paper-suction device via a ventilation hose.

[0008] By adopting the above technical solution, before use, the operator installs the padding paper roll on the support frame, passes one end of the padding paper roll through the paper cutting device, and places it on the conveyor belt. The operator starts the automatic filling and padding paper machine, the conveyor belt moves forward, the paper feeding device drives the padding paper forward, the paper cutting device cuts the padding paper, and at the same time, the paper suction component ensures that the cut pieces of padding paper adhere to the conveyor belt. The dry powder device sprinkles dry powder onto the padding paper. The operator manually adjusts the padding paper output speed to make the output speed of the filling device the same as the output speed of the padding paper, thus realizing automated filling and padding paper production.

[0009] Preferably, the paper cutting device includes a cutting pad, which is horizontally arranged, with the upper side of the cutting pad and the upper side of the conveyor belt on the same horizontal plane. The support frame is arranged on the side of the cutting pad away from the conveyor belt. The paper feeding device is arranged between the support frame and the cutting pad. A cutter is arranged on the side of the cutting pad away from the paper feeding assembly, with the cutter arranged on the upper side of the cutting pad. The housing is also provided with a vertical drive assembly for driving the cutter to move in the vertical direction.

[0010] By adopting the above technical solution, the worker installs the pad paper roll on the support frame, passes one end of the pad paper roll through the paper feeding device, passes it through the upper side of the cutting pad, and places it on the conveyor belt. During the cutting process, the vertical drive component drives the cutter to move downwards in the vertical direction, thereby cutting the pad paper set on the upper side of the cutting pad. The conveyor belt moves the cut square pad paper forward, the vertical drive component drives the cutter to reset, and the paper feeding device moves the paper end of the pad paper roll forward along the cutting pad to the conveyor belt. The above operation is repeated to cut multiple square pad papers spaced apart.

[0011] Preferably, the vertical drive assembly includes connecting rods, the upper end of which is fixed to the cutter. The connecting rods slide and engage with the housing in the vertical direction. One connecting rod is provided on each side of the cutter's length direction. A crossbar is fixed to the lower end of each connecting rod. Two crossbars are spaced apart in the vertical direction at the lower end of any connecting rod. A bearing is provided between the two crossbars. The outer side of the bearing abuts against the adjacent side of each of the two crossbars. The bearing slides and engages with the two crossbars in the length direction of the crossbars. A vertical drive motor is provided on the housing. The housing of the vertical drive motor is fixed relative to the housing. The output shaft of the vertical drive motor is eccentrically fixed to the bearing.

[0012] By adopting the above technical solution, after the staff starts the paper cutting device, the output shaft of the vertical drive motor rotates, which drives the bearing to rotate around the axis of the output shaft. Due to the eccentric setting of the bearing and the output shaft, the bearing will move up and down in the vertical direction, thereby driving the two crossbars to slide down in the vertical direction, driving the connecting rod to drive the cutter to move in the vertical direction. In this way, the cutting and resetting of the cutter can be achieved with a simple structure and a motor.

[0013] Preferably, the paper feeding device includes a drive roller and a positioning roller, both of which are horizontally arranged. The two ends of the drive roller and the positioning roller are rotatably connected to the box body around their own axes. The drive roller and the positioning roller are spaced apart in the vertical direction. The positioning roller is adjustable and fixed in the vertical direction inside the box body. A paper feeding drive motor is also fixed inside the box body, and the output shaft of the paper feeding drive motor is connected to the drive shaft for transmission.

[0014] By adopting the above technical solution, during the debugging process, the staff passed one end of the pad paper roll between the positioning roller and the drive roller, adjusted the positioning roller to press against the upper side of the pad paper, and made the lower side of the pad paper press against the drive roller. After starting the paper feeding device, the paper feeding drive motor drove the drive roller to rotate, and the drive roller moved the pad paper forward.

[0015] Preferably, the support frame is rotatably connected to the inner side plate of the box about its own axis, the padding paper roll is installed on one side of the support frame along the width direction of the box, and an anti-reverse device is provided on the other side of the support frame.

[0016] By adopting the above technical solution, the staff can install the padding paper roll on the support frame before use. The anti-reverse device helps to ensure that the cut padding paper roll can continue to be conveyed to the conveyor belt.

[0017] Preferably, the support frame includes an installation roller for mounting the pad paper roll, the installation roller being rotatably connected to the box body about its own axis, and the anti-reverse device includes a limiting roller coaxially arranged with the installation roller, a limiting band being wound around the limiting roller, the side of the limiting band away from the conveyor belt being fixedly connected to the box body, a spring being fixedly attached to the side of the limiting band near the conveyor belt, and the other end of the spring being fixedly connected to the box body.

[0018] By adopting the above technical solution, the limiting band is fixed to the box body and the tension is controlled by a spring. The limiting band prevents the backing paper roll from reversing and provides appropriate tension to maintain the smooth transmission of the backing paper strip and ensure a stable supply of the backing paper roll.

[0019] Preferably, the conveyor belt includes a belt body and a drive assembly. The belt body has through holes extending through it along its thickness direction. Multiple through holes are evenly spaced along the width and length directions of the belt body. The paper suction device includes a support plate, which is disposed on the lower side of the upper belt body. An air extraction box is disposed on the lower side of the support plate near the housing. The air extraction box is connected to an air extraction pump via a ventilation hose. An air extraction groove communicating with the air extraction box is provided on the support plate. The discharge end of the filling machine is disposed on the upper side of the air extraction box on the side away from the housing along the forward direction of the conveyor belt.

[0020] By adopting the above technical solution, the air pump draws air through the ventilation hose, air extraction box and air extraction slot, so that the upper side of the belt forms an adsorption force to fix the cut pad paper pieces. In this way, the cut square pad paper pieces can be firmly adsorbed on the conveyor belt. As the belt moves forward, it is conveyed to the lower side of the filling machine, and then the filling machine discharges the dough with filling, which falls precisely onto the pad paper pieces.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The machine integrates paper cutting, paper feeding, and air pump. It also integrates dry powder spreading and filling discharge. This helps to reduce the size of the equipment and improve its integration. The operator only needs to load the paper roll into the support frame and set the discharge speed. The system can automatically perform cutting, paper feeding and paper filling actions. The high degree of automation reduces the need for manual adjustment, reduces the complexity of operation, and improves the continuity and efficiency of the production line.

[0023] 2. The eccentric shaft design of the vertical drive assembly enables automatic reset of the cutter, while the anti-reverse device and limit roller ensure stable feeding of the padding roll, avoiding reverse and slack problems;

[0024] 3. By incorporating through-holes, an air extraction box, and an air pump on the conveyor belt, an adhesive force is created to firmly attach the cut padding paper pieces to the conveyor belt, ensuring stable positioning of the padding paper pieces during transport and preventing displacement. This allows the padding paper pieces to precisely adhere to the dough with filling when transported to the filling machine's outlet, improving product quality and padding paper efficiency. Attached Figure Description

[0025] Figure 1 This is an isometric view of the overall structure of the automatic filling and paper-covering machine, which is the main embodiment of this application.

[0026] Figure 2 This is a cross-sectional view that mainly illustrates the overall structure of the conveyor belt in the embodiments of this application;

[0027] Figure 3 This is an isometric view of the main box structure in the embodiments of this application;

[0028] Figure 4 This is an isometric view of the main box structure in the embodiments of this application;

[0029] Figure 5 This is an isometric view of the main structural components of the mounting bracket in the embodiments of this application;

[0030] Figure 6 This is a cross-sectional view of the main structural components of the mounting frame in the embodiments of this application.

[0031] Reference numerals: 1. Frame; 2. Conveyor belt; 21. Belt body; 211. Through hole; 22. Conveyor drive motor; 23. Support roller; 24. Conveyor roller; 25. Tension roller; 26. Paper suction device; 261. Support plate; 262. Air extraction box; 263. Air extraction pipe; 3. Filling device; 31. Filling cutter disc; 4. Dry powder device; 5. Box; 51. Side plate; 52. Mounting frame; 53. Positioning plate; 54. Support frame; 541. Mounting roller 542. Limiting roller; 55. Anti-reverse device; 551. Limiting belt; 552. Spring; 6. Paper feeding device; 61. Positioning roller; 62. Positioning shaft; 63. Adjusting bolt; 64. Drive roller; 65. Paper feeding drive motor; 66. Synchronous belt; 67. Pulley; 7. Paper cutting device; 71. Cutting pad; 72. Cutter; 73. Connecting rod; 74. Crossbar; 75. Bearing; 76. Fixing block; 77. Vertical drive motor; 8. Air pump. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0033] This application discloses an automatic stuffing paper-filling machine.

[0034] See Figures 1-3 The automatic filling and paper-covering machine includes a frame 1, on which a conveyor belt 2 is mounted. The conveyor belt 2 includes a belt body 21, with the upper belt body 21 positioned horizontally. A support roller 23 is mounted at each end of the frame 1 along its length, both horizontally positioned. A conveyor roller 24 is also mounted on the frame 1, horizontally positioned, with its axis parallel to the axes of the support rollers 23. The support rollers 23 and the conveyor roller 24 are rotatably connected to the frame 1 about its own axis. Multiple tension rollers 25 are mounted on both sides of the conveyor roller 24 along the forward direction of the conveyor belt 2, each horizontally positioned, and each tension roller 25 is rotatably connected to the frame 1 about its own axis. The output shaft of a conveyor drive motor 22 is coaxially fixed to the conveyor roller 24, and the housing of the conveyor drive motor 22 is fixedly connected to the frame 1. The belt body 21 of the conveyor belt 2 is sequentially wound around the support rollers 23, tension rollers 25, and conveyor rollers 24. The staff started the conveyor drive motor 22, and the output shaft of the conveyor drive motor drove the conveyor roller 24 to rotate, and the conveyor roller 24 drove the upper belt 21 forward.

[0035] A filling device 3 is installed above the middle of the conveyor belt 2. The filling device 3 includes a dough feeder, a filling feeder, and a filling cutter disc 31. The outlets of the dough feeder and the filling feeder both point towards the filling cutter disc 31, which is located on the upper middle side of the conveyor belt 2 in the forward direction. A dry powder device 4 for pre-sprinkling powder onto the padding paper is installed at the front end of the filling device 3 along the forward direction of the conveyor belt 2. A housing 5 is also installed at the front end of the conveyor belt 2 in the forward direction. A paper cutting device 7, a paper feeding device 6, and an air pump 8 are installed inside the housing 5. A paper suction device 26 is also installed on the lower side of the upper belt body 21 of the conveyor belt 2. The air pump 8 is connected to the paper suction device 26 through a ventilation hose. In actual operation, the staff adjusts the speed of the paper feeding device 6, the paper cutting device 7 and the drive motor of the conveyor belt 2 so that the cut square padding paper moves along the length of the conveyor belt 2 with the upper belt body 21. This makes the output and forward speed of the square padding paper consistent with the output speed of the filling device 3, thereby realizing automated filling and padding paper operation.

[0036] The conveyor belt 2 has through holes 211 on its belt body 21, which penetrate the belt body 21 along its thickness direction. Multiple through holes 211 are evenly spaced along the length and width directions of the belt body 21. The paper suction device 26 includes a frame 1 and a support plate 261, which is positioned between the upper and lower belt bodies 21 of the conveyor belt 2. Support rollers 23, tension rollers 25, and conveyor rollers 24 are all located below the support plate 261. A suction box 262 is located below one side of the support plate 261 along its length direction. A suction groove is formed on the support plate 261 corresponding to the suction box 262, penetrating the support plate 261 vertically and communicating with the interior of the suction box 262. Multiple suction grooves are evenly spaced along the forward direction of the conveyor belt 2. An extraction pipe 263 is also provided on one side of the extraction box 262 along the width direction of the conveyor belt 2. The extraction pipe 263 is connected to the extraction slot through the extraction box 262, and the other end of the extraction pipe 263 is connected to the extraction pump 8 through a ventilation hose.

[0037] See Figures 3-4A side plate 51 is fixed vertically along the middle of the width direction of the conveyor belt 2 inside the housing 5. A support frame 54 is mounted on the side plate 51, including a mounting roller 541, which is rotatably connected to the side plate 51 around its own axis. An anti-reverse device 55 is also provided on the side plate 51, including a limiting roller 542. The limiting roller 542 and the mounting roller 541 are located on opposite sides of the thickness direction of the side plate 51, and are coaxially fixed. The anti-reverse device 55 also includes a spring 552 and a limiting belt 551. The limiting belt 551 is a belt, with one end fixedly connected to the housing 5 and the other end fixed to the spring 552. The limiting belt 551 is wound around the limiting roller 542. One end of the spring 552 is fixed to the limiting belt 551, and the other end is fixed to the side plate 51. Spring 552 is located on the side of limit roller 542 close to conveyor belt 2 along the forward direction of conveyor belt 2. The anti-reverse device 55 set in this way helps to reduce the possibility of the backing paper roll reversing after cutting.

[0038] See Figures 4-6 The housing 5 also includes a mounting frame 52, located between the conveyor belt 2 and the support frame 54. The paper feeding device 6 and the paper cutting device 7 are both mounted on the mounting frame 52. The paper feeding device 6 includes a drive roller 64 and a positioning roller 61. The axes of both the drive roller 64 and the positioning roller 61 are parallel to the width direction of the conveyor belt 2, and the positioning roller 61 is positioned vertically above the drive roller 64. Both ends of the drive roller 64 are rotatably connected to the mounting frame 52 about its own axis. A positioning shaft 62 is coaxially mounted on the positioning roller 61, and the positioning roller 61 is rotatably connected to the positioning shaft 62 about its own axis. Two positioning plates 53 are respectively mounted on both ends of the positioning shaft 62, and the positioning plates 53 are fixed to the mounting frame 52. The two ends of the positioning shaft 62 slide vertically along the corresponding positioning plates 53. An adjusting bolt 63 is mounted on each positioning plate 53, which passes vertically through the positioning shaft 62 and is threaded into it. Any adjusting bolt 63 is rotatably connected to the positioning plate 53 around its own axis. The operator can change the distance between the positioning roller 61 and the drive roller 64 by rotating the two adjusting bolts 63, so that the padding paper passes between the positioning roller 61 and the drive roller 64, and the positioning roller 61 presses against the padding paper, and the padding paper presses against the drive roller 64.

[0039] A paper feeding drive motor 65 is also mounted on the mounting frame 52. The housing of the paper feeding drive motor 65 is fixed on the mounting frame 52, and the axis of the output shaft of the paper feeding drive motor 65 is parallel to the axis of the drive roller 64. The output shaft of the paper feeding drive motor 65 and the drive roller 64 are connected by a synchronous belt 66 and two pulleys 67. This method helps to reduce the size of the paper feeding device 6.

[0040] See Figure 5 , Figure 6The paper cutting device 7 includes a cutting pad 71, which is horizontally positioned between the drive roller 64 and the positioning roller 61, near the side of the conveyor belt 2. The upper side of the cutting pad 71 is on the same horizontal plane as the upper side of the transmission belt body 21. A cutter 72 is provided on the side of the cutting pad 71 near the conveyor belt 2, with the cutter 72 located on the upper side of the cutting pad 71 and the cutting edge of the cutter 72 located on the lower side. The cutter 72 slides vertically along the mounting bracket 52.

[0041] The mounting frame 52 is also equipped with a vertical drive assembly, which includes connecting rods 73. The connecting rods 73 are vertically arranged, with one on each side of the cutter 72 along the width of the conveyor belt 2. A crossbar 74 is located at the lower end of each connecting rod 73. Two crossbars 74 are spaced vertically apart, and both ends of each crossbar 74 are fixedly connected to the two connecting rods 73 respectively. A bearing 75 is located between the two crossbars 74, with its axis parallel to the forward direction of the conveyor belt 2. The peripheral surfaces of the bearing 75 abut against the adjacent sides of the two crossbars 74. The mounting frame 52 is also equipped with a vertical drive motor 77. The housing of the vertical drive motor 77 is fixedly connected to the mounting frame 52. A fixing block 76 is fixed to the output shaft of the vertical drive motor 77, eccentrically positioned with the output shaft of the vertical drive motor 77 and the fixing block 76. The fixing block 76 is embedded and fixed within the bearing 75. After the vertical drive motor 77 drives the shaft to rotate, it drives the bearing 75 to rotate around the axis of the drive shaft. The bearing 75 can slide freely in the horizontal direction between the two crossbars 74. The bearing 75 moves up and down in the vertical direction, thereby driving the two crossbars 74 to move in the vertical direction. Then, through the connecting rod 73, it drives the blade to move up and down to complete the cutting and resetting.

[0042] The implementation principle of the automatic filling paper padding machine according to this application embodiment is as follows: Before starting the equipment, the operator installs the paper padding roll on the mounting roller 541, passes one end of the paper padding roll between the positioning roller 61 and the drive roller 64, and rotates the two adjusting bolts 63 to adjust the distance between the positioning roller 61 and the drive roller 64 to ensure that the drive roller 64 rotates and drives the paper padding forward. After passing the paper padding roll through the upper side of the cutting plate 71, it is placed on the conveyor belt 2. The operator starts the conveyor drive motor 22, the vertical drive motor 77, the paper feeding drive motor 65, the air pump 8, the filling device 3, and the dry powder device 4, so that the square paper padding roll cut by the cutter 72 moves forward with the conveyor belt 2. After being sprinkled with powder by the dry powder device 4, when it moves to the lower side of the filling cutter disc 31, the formed filled product falls precisely on the paper padding roll, thus completing the debugging. After the operator starts the automatic filling and padding machine, the paper feeding drive motor 65 drives the drive roller 64 to rotate. The drive roller 64 moves the head padding paper on the padding paper roll forward continuously. The vertical drive motor 77 drives the cutter 72 to continuously cut the head padding paper of the padding paper roll, continuously forming square padding paper that moves forward with the conveyor belt 2. The dry powder device 4 sprinkles powder onto the square padding paper. The filling dough is output from the filling box and falls onto the square padding paper. The suction device 26 helps to ensure that the square padding paper is tightly attached to the conveyor belt 2 before the filling dough falls onto it. The entire equipment automates the bottom padding of filled products through precise control of paper feeding, cutting, suction, and conveying. This process improves production efficiency and product consistency, reduces manual intervention, provides stable padding paper support for filled products, and ensures product quality and efficient operation of the production line.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic filling and paper-covering machine, comprising a frame (1), wherein the frame (1) is provided with a dry powder device (4) for sprinkling powder and a filling device (3) for producing filled dough, characterized in that: The frame (1) is also equipped with a conveyor belt (2), which is located below the dry powder device (4) and the filling device (3). A box (5) is provided at the front end of the conveyor belt (2) in the forward direction. A support frame (54) for installing the padding paper roll is provided inside the box (5). A paper cutting device (7) for cutting the padding paper is also provided inside the box (5). A paper feeding device (6) is provided between the paper cutting device and the support frame (54). A paper suction device (26) is also provided on the conveyor belt (2) to ensure that the padding paper is relatively stationary with respect to the conveyor belt (2). An air pump (8) is also provided inside the box (5). The air pump (8) and the paper suction device (26) are connected by a ventilation hose.

2. The automatic filling and paper-covering machine according to claim 1, characterized in that: The paper cutting device (7) includes a cutting pad (71), which is horizontally arranged. The upper side of the cutting pad (71) is on the same horizontal plane as the upper side of the conveyor belt (2). The support frame (54) is arranged on the side of the cutting pad (71) away from the conveyor belt (2). The paper feeding device (6) is arranged between the support frame (54) and the cutting pad (71). A cutter (72) is arranged on the side of the cutting pad (71) away from the paper feeding assembly. The cutter (72) is arranged on the upper side of the cutting pad (71). The housing (5) is also provided with a vertical drive assembly for driving the cutter (72) to move in the vertical direction.

3. The automatic filling and paper-covering machine according to claim 2, characterized in that: The vertical drive assembly includes a connecting rod (73), the upper end of which is fixed to the cutter (72). The connecting rod (73) and the housing (5) slide in a vertical direction. There is one connecting rod (73) on each side of the length direction of the cutter (72). The lower ends of the two connecting rods (73) are fixed with crossbars (74). There are two crossbars (74) at intervals along the vertical direction at the lower end of any connecting rod (73). A bearing (75) is provided between the two crossbars (74). The outer side of the bearing (75) abuts against the side of the two crossbars (74) that are close to each other. The bearing (75) slides in a vertical direction with the two crossbars (74). A vertical drive motor (77) is provided on the housing (5). The housing of the vertical drive motor (77) is fixed relative to the housing (5). The output shaft of the vertical drive motor (77) is eccentrically fixed to the bearing (75).

4. The automatic filling and paper-covering machine according to claim 2, characterized in that: The paper feeding device (6) includes a drive roller (64) and a positioning roller (61). Both the drive roller (64) and the positioning roller (61) are horizontally arranged. The two ends of the drive roller (64) and the positioning roller (61) are rotatably connected to the housing (5) around their own axis. The drive roller (64) and the positioning roller (61) are spaced apart in the vertical direction. The positioning roller (61) is adjustable and fixed in the vertical direction inside the housing (5). A paper feeding drive motor (65) is also fixed inside the housing (5). The output shaft of the paper feeding drive motor (65) is connected to the drive shaft.

5. The automatic filling and paper-covering machine according to claim 1, characterized in that: The support frame (54) is rotatably connected to the side plate (51) inside the box (5) around its own axis. The padding paper roll is installed on one side of the support frame (54) along the width direction of the box (5). An anti-reverse device (55) is provided on the other side of the support frame (54).

6. The automatic filling and paper-covering machine according to claim 5, characterized in that: The support frame (54) includes an installation roller (541) for mounting the pad paper roll. The installation roller (541) is rotatably connected to the housing (5) around its own axis. The anti-reverse device (55) includes a limiting roller (542) coaxially arranged with the installation roller (541). A limiting band (551) is wound around the limiting roller (542). The side of the limiting band (551) away from the conveyor belt (2) is fixedly connected to the housing (5). A spring (552) is fixed on the side of the limiting band (551) close to the conveyor belt (2). The other end of the spring (552) is fixedly connected to the housing (5).

7. The automatic filling and paper-covering machine according to claim 1, characterized in that: The conveyor belt (2) includes a belt body (21) and a drive assembly. The belt body (21) has through holes (211) arranged through it along its thickness direction. Multiple through holes (211) are evenly spaced along the width and length directions of the belt body (21). The paper suction device (26) includes a support plate (261). The support plate (261) is located on the lower side of the upper belt body (21). The support plate (261) is located on the lower side near the box (5) with an air extraction box (262). The air extraction box (262) is connected to the air extraction pump (8) through a ventilation hose. The support plate (261) has an air extraction groove that communicates with the air extraction box (262). The discharge end of the filling machine is located on the upper side of the end of the air extraction box (262) away from the box (5) along the forward direction of the conveyor belt (2).

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