A food grade tray tilting hot press

Abstract

The application discloses a food-grade tray inclined hot-pressing device and relates to the technical field of food tray production. The device comprises a rack, an inclined feeding mechanism arranged on the rack, and a bracket mechanism comprising a mounting seat fixedly connected to the top surface of a bottom plate. The top surface of the mounting seat is provided with a sliding groove one, and the sliding groove one is slidably connected with a sliding seat. The sliding seat is fixedly sleeved with an abutting shaft, and the both ends of the abutting shaft are rotatably provided with rotating columns. In the application, after the paper stack is placed in the paper guide rod, the rotating column is made close to the paper stack, so that the abutting plate is abutted against the side surface of the paper stack, thereby supporting the paper stack. With the decrease of the height of the paper stack, the sliding frame is pressed against the top surface of the paper stack, so that when the number of paper sheets in the paper stack is small, the suction cup can still accurately suck the paper sheets from the bottom of the paper stack, thereby ensuring the continuity of the subsequent hot-pressing step.

Description

Technical Field

[0001] This invention relates to the field of food tray manufacturing technology, specifically to a tilting hot pressing device for food-grade trays. Background Technology

[0002] Food-grade trays include reusable trays made of plastic and stainless steel, as well as disposable paper trays. Paper trays are widely used in food delivery, commercial events and public spaces, and outdoor and leisure settings due to their low cost and biodegradability. When producing paper trays using a thermoforming process, a stack of paper is placed between multiple guide rods in a feeding mechanism to hold the paper in place. Then, a suction cup picks up the bottom sheet of paper from the stack, allowing it to slide down an inclined plane into the thermopressor.

[0003] Because the paper cups used in disposable paper trays typically have a basis weight of 150-300 g / m², which is relatively thick and heavy, the paper guides used to intercept the paper stacks will bend due to the weight of the paper stacks when the paper stacks are placed between multiple guide rods. With daily use of the equipment, the guide rods squeezed by the paper stacks will eventually bend and become skewed, making it impossible to feed materials according to the production rhythm and affecting the production pace. At the same time, the bent and skewed guide rods will also increase the contact area between the paper edge and the guide rod. As the bottom paper is removed, the paper above will rub against the guide rod as it slides down with gravity, causing the paper edge to wear. As a result, after being heat-pressed into a tray, the edge thickness of the tray will not meet the standard, thus affecting the actual use of the tray. Summary of the Invention

[0004] The purpose of this invention is to provide a food-grade tray tilting hot pressing device to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a food-grade tray tilting hot pressing device, comprising a frame, wherein an tilting feeding mechanism is provided on the frame, the mechanism comprising a base plate and a plurality of paper guide rods, wherein paper stacks are placed within the plurality of paper guide rods, and further comprising:

[0006] The bracket mechanism includes a mounting base fixedly connected to the top surface of a base plate. A sliding groove is provided on the top surface of the mounting base. A sliding seat is slidably connected in the sliding groove. An abutment shaft is fixedly sleeved in the sliding seat. Rotating columns are rotatably mounted at both ends of the abutment shaft. A sliding frame is slidably connected to the side of the rotating column facing the paper stack. A pressure plate is hinged to the side of the sliding frame facing the paper stack. One side of the pressure plate abuts against the side of the paper stack. The height of the sliding frame is less than that of the rotating column. The mounting base is located in the inclined direction of the paper stack.

[0007] Preferably, a torsion spring is sleeved on the abutting shaft, one end of the torsion spring is fixedly connected to the abutting shaft, and the other end is fixedly connected to the rotating column. The torsion spring drives the rotating frame to rotate in the direction of the paper stack.

[0008] Preferably, the abutting shaft has an abutting surface facing the paper stack, and when the pressure plate contacts the paper stack, the sliding frame abuts against the abutting surface on the abutting shaft.

[0009] Preferably, cylinders are fixedly connected to both sides of the rotating column, and symmetrical stops are fixedly connected to both sides of the mounting base, with the cylinders abutting against the adjacent stops.

[0010] Preferably, a symmetrical guide frame is fixedly connected to the top surface of the base plate, a guide groove is provided on one side of the guide frame, and a limit plate is fixedly connected to the mounting base.

[0011] Preferably, a plurality of limiting posts are fixedly connected to the inner side of the rotating column, the limiting posts penetrate the sliding frame, and an outward push spring is sleeved on the limiting post, the outward push spring pushes the sliding frame to the outside of the rotating column.

[0012] Preferably, the inner side of the pressure plate is connected to the inner side of the sliding frame by a spring rod, and the spring rod drives the pressure plate to abut against the paper stack.

[0013] Preferably, the abutment mechanism includes an abutment frame and multiple rotating frames. Magnet frames are fixedly connected to the top surfaces of two of the rotating columns. The abutment frame is fixedly connected to the top surface of the base plate and is located on the rotation path of the magnet frames. The rotating frames are rotatably mounted on paper guide rods adjacent to the abutment frames. Paper support rollers are rotatably mounted on the rotating frames. After the rotating frames rotate, the paper support rollers move to the bottom surface of the paper stack. An electromagnet is slidably connected inside the abutment frame. A conduit is embedded inside the base plate, and a cable passes through the conduit. One end of the cable is fixedly connected to the bottom surface of the electromagnet, and the other end is fixedly connected to the side of the rotating frames. After the electromagnet attracts the magnet frames, the cable pulls the rotating frames to rotate.

[0014] Preferably, a slide cylinder is fixedly connected inside the frame, and the slide block is fixedly connected to the top surface of the slide cylinder slide, with the telescopic end of the slide cylinder facing the heat press.

[0015] Preferably, the frame is provided with a suction cup located on the bottom surface of the paper stack, and the frame is provided with a paper blowing port to blow the paper sucked by the suction cup toward the hot press.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. In this invention, through the bracket mechanism, after the paper stack is placed inside the guide rod, the rotating column moves closer to the paper stack, so that the pressure plate abuts against the side of the paper stack, thereby supporting the paper stack and reducing the pressure of the paper stack on the guide rod adjacent to the rotating column, ensuring the service life of the guide rod. At the same time, as the height of the paper stack decreases, the rotating column is driven to rotate, so that the sliding frame presses against the top surface of the paper stack, thereby ensuring that even when the number of papers in the paper stack is small, the suction cup can still accurately pick up the paper from the bottom of the paper stack, ensuring the continuity of the subsequent hot pressing steps.

[0018] 2. In this invention, the supporting mechanism, in conjunction with the rotating column and the magnetic frame, causes the rotating frame to rotate, thereby rotating the paper support roller to the bottom surface of the paper stack to support the paper stack and prevent it from falling out of the guide rod after being pressured by the sliding frame, thus affecting the continuous production of the equipment. At the same time, the cooperation between the magnetic frame and the electromagnet ensures the stability of the rotating column when it continues to pull paper out of the paper stack, preventing the sliding frame from shaking and scratching the paper at the top of the paper stack. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the suction cup position on the frame of the present invention;

[0022] Figure 4 This is a schematic diagram of the feeding mechanism, bracket mechanism, and abutment mechanism of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged view at point B in the middle;

[0024] Figure 6 This is a cross-sectional view of the bracket mechanism of the present invention;

[0025] Figure 7 This is a schematic diagram of the bracket mechanism of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the anti-frame mechanism of the present invention when it is not in operation;

[0027] Figure 9 For the present invention Figure 8 Enlarged view at point C;

[0028] Figure 10 This is a schematic diagram of the structure of the support mechanism of the present invention during operation;

[0029] Figure 11 For the present invention Figure 10 Diagram at point D;

[0030] Figure 12 This is a schematic diagram of the structure of the rotating column after rotation according to the present invention.

[0031] In the diagram: 1. Frame; 11. Slide table cylinder; 12. Suction cup; 13. Paper blowing nozzle; 2. Hot press; 3. Feeding mechanism; 31. Base plate; 32. Paper guide rod; 33. Paper stack; 4. Support mechanism; 41. Mounting base; 411. Stop block; 412. Limiting plate; 42. Slide groove one; 43. Slide seat; 44. Abutting shaft; 441. Torsion spring; 45. Rotating column; 451. Limiting column; 452. Push spring; 453. Cylinder; 46. Sliding frame; 47. Pressure plate; 471. Spring rod; 48. Guide frame; 49. Magnet frame; 5. Abutting mechanism; 51. Abutting frame; 52. Electromagnet; 53. Conduit; 531. Cable; 54. Rotating frame; 55. Paper support roller. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 12 As shown, an embodiment of the present invention provides a food-grade tray tilting hot pressing device, including a frame 1, on which an inclined feeding mechanism 3 is provided, including a base plate 31 and a plurality of paper guide rods 32, in which paper stacks 33 are placed, and further including:

[0034] The bracket mechanism 4 includes a mounting base 41 fixedly connected to the top surface of the base plate 31. A sliding groove 42 is provided on the top surface of the mounting base 41. A sliding seat 43 is slidably connected in the sliding groove 42. An abutment shaft 44 is fixedly sleeved in the sliding seat 43. Rotating columns 45 are rotatably installed at both ends of the abutment shaft 44. A sliding frame 46 is slidably connected to the side of the rotating column 45 facing the paper stack 33. A pressure plate 47 is hinged to the side of the sliding frame 46 facing the paper stack 33. One side of the pressure plate 47 abuts against the side of the paper stack 33. The height of the sliding frame 46 is less than that of the rotating column 45. The mounting base 41 is located in the inclined direction of the paper stack 33.

[0035] In this invention, the bracket mechanism 4, after the paper stack 33 is placed inside the guide rod 32, moves the rotating column 45 closer to the paper stack 33, causing the pressure plate 47 to abut against the side of the paper stack 33, thereby supporting the paper stack 33 and reducing the pressure of the paper stack 33 on the guide rod 32 adjacent to the rotating column 45, ensuring the service life of the guide rod 32. At the same time, as the height of the paper stack 33 decreases, the rotating column 45 is driven to rotate, so that the sliding frame 46 presses against the top surface of the paper stack 33, thereby ensuring that even when the number of papers in the paper stack 33 is small, the suction cup 12 can still accurately pick up the paper from the bottom of the paper stack 33, ensuring the continuity of the subsequent hot pressing steps.

[0036] A thread is provided at the bottom end of the paper guide rod 32 for placing the paper stack 33. This thread is used to ensure that the paper stack 33 can be placed and to prevent the paper stack 33 from falling out of the paper guide rod 32. At the same time, it can also ensure that the paper can leave the paper stack 33 after the suction cup 12 picks up the paper. (This setting is a common way of placing the paper stack 33 in existing inclined paper tray machines).

[0037] In this embodiment, a torsion spring 441 is sleeved on the abutment shaft 44. One end of the torsion spring 441 is fixedly connected to the abutment shaft 44, and the other end is fixedly connected to the rotating column 45. The torsion spring 441 drives the rotating frame 54 to rotate in the direction of the paper stack 33.

[0038] like Figures 3 to 7 As shown, the torsion spring 441 is used to drive the rotating column 45 to rotate in the direction of the paper stack 33. However, when there is a large amount of paper remaining on the paper stack 33, the torque of the torsion spring 441 is offset by the pressure exerted by the tilted paper stack 33 on the rotating column 45, thus failing to drive the rotating column 45 to rotate. When there is a small amount of paper remaining on the paper stack 33, the paper stack 33 no longer contacts the sliding frame 46. At this time, the rotating column 45 is driven to rotate by the torsion spring 441 and then presses against the top surface of the paper stack 33, thereby pressing down the paper stack 33. This ensures that when there is a small amount of paper remaining on the paper stack 33, the suction cup 12 can still accurately pick up the paper, ensuring the production rhythm.

[0039] In this embodiment, the abutting shaft 44 has an abutting surface facing the paper stack 33. When the pressing plate 47 contacts the paper stack 33, the sliding frame 46 abuts against the abutting surface on the abutting shaft 44.

[0040] like Figures 4 to 6As shown, when the sliding frame 46 is pressed by the paper stack 33 and one side of it comes into contact with the contact surface, since the contact shaft 44 is fixed, the sliding frame 46 cannot rotate under the limitation of the contact shaft 44. The restriction of the sliding frame 46 also prevents the rotating column 45 from rotating. Thus, after the paper stack 33 applies pressure to the sliding frame 46 and the rotating column 45, it ensures that the rotating column 45 and the sliding frame 46 cannot rotate and remain stationary. This ensures that the edges of the paper in the paper stack 33 will not be worn by the swinging rotating column 45 and the sliding frame 46 during the downward movement.

[0041] To ensure the restraining effect of the contact surface on the sliding frame 46 and the rotating column 45, an interlocking concave-convex structure can be provided at the part of the contact surface that contacts the sliding frame 46, and the concave-convex structure can be separated after the sliding frame 46 moves away from the contact surface.

[0042] In this embodiment, cylinders 453 are fixedly connected to both sides of the rotating column 45, and symmetrical blocks 411 are fixedly connected to both sides of the mounting base 41. The cylinders 453 abut against the adjacent blocks 411.

[0043] like Figure 5 , Figure 7 and Figure 12 As shown, the cylinders 453 located on both sides of the rotating column 45 serve to limit the rotation of the rotating column 45. When the cylinder 453 abuts against the side of the stop block 411, the rotating column 45 can no longer rotate, thereby limiting the maximum rotation angle of the rotating column 45 in the inclined direction of the paper stack 33. This prevents the rotating column 45 from rotating excessively in this direction, which would cause the bottom of the rotating column 45 to abut against and scratch the paper at the bottom of the paper stack 33. At the same time, under the limitation of the stop block 411, it is ensured that the rotating column 45 and the sliding frame 46 can effectively support the paper stack 33 to share the pressure on the nearby paper guide rod 32.

[0044] In this embodiment, a symmetrical guide frame 48 is fixedly connected to the top surface of the base plate 31. A guide groove is provided on one side of the guide frame 48, and a limit plate 412 is fixedly connected to the mounting base 41.

[0045] like Figures 4 to 7 and Figure 12 As shown, when the rotating column 45 is driven to rotate by the torsion spring 441, the pressure plate 47 abuts against the top surface of the paper stack 33, and the cylinder 453 at one end of the rotating column 45 slides into the guide frame 48 along the guide groove. As the paper in the paper stack 33 is completely drawn out, when the bracket mechanism 4 is reset, the drive slide 43 moves away from the paper stack 33. At this time, the cylinder 453 slides along the arc surface of the guide groove, thereby driving the rotating column 45 to rotate. Thus, while resetting the rotating column 45, it is moved away from the paper guide rod 32 to avoid affecting the subsequent paper feeding process.

[0046] As the slide 43 moves away from the paper stack 33, one side of the rotating column 45 abuts against the limiting plate 412, thereby preventing the longer part of the rotating column 45 from rotating excessively towards the inclined direction of the paper stack 33. This would prevent the shorter part of the rotating column 45 from poking into the paper stack 33 and damaging the paper when the slide 43 approaches the paper stack 33. This ensures that the rotating column 45 contacts the paper stack 33 through the pressing plate 47 when it approaches the placed paper stack 33, and also ensures that the torsion spring 441 will not be damaged due to excessive rotation of the rotating column 45.

[0047] In this embodiment, a plurality of limiting posts 451 are fixedly connected to the inner side of the rotating post 45. The limiting posts 451 penetrate the sliding frame 46. An outward push spring 452 is sleeved on the limiting post 451. The outward push spring 452 pushes the sliding frame 46 to the outside of the rotating post 45.

[0048] like Figure 6 As shown, after the rotating column 45 rotates, the sliding frame 46 and the pressure plate 47 are pushed by the outward spring 452, thus sliding out of the rotating column 45. At this time, as the paper in the paper stack 33 is pulled out, the sliding frame 46 moves down along with it, so that the sliding frame 46 and the pressure plate 47 are always in contact with the top surface of the paper stack 33 and apply a certain pressure to the paper stack 33. This ensures that when the amount of paper in the paper stack 33 is small, a certain pressure is applied to it from the top surface of the paper stack 33, thereby ensuring that the suction cup 12 can accurately remove the paper from the bottom surface of the paper stack 33, ensuring the continuity of production and ensuring that the hot press 2 does not run empty.

[0049] In this embodiment, the inner side of the pressure plate 47 is connected to the inner side of the sliding frame 46 by a spring rod 471, and the spring rod 471 drives the pressure plate 47 to abut against the paper stack 33.

[0050] like Figure 6 As shown, the spring rod 471 can, on the one hand, allow the pressure plate 47 to abut against the side of the paper stack 33 when the rotating column 45 is parallel to the axis of the paper stack 33, thereby supporting the paper stack 33 and pushing the sliding frame 46 to move away from the paper stack 33. On the other hand, after the rotating column 45 rotates to be perpendicular to the axis of the paper stack 33, the pressure plate 47 can apply pressure to the paper stack 33, further ensuring the stability of the suction cup 12 in picking up paper when the remaining amount of paper in the paper stack 33 is small.

[0051] In this embodiment, the abutment mechanism 5 includes an abutment frame 51 and multiple rotating frames 54. Magnet frames 49 are fixedly connected to the top surfaces of two rotating columns 45. The abutment frame 51 is fixedly connected to the top surface of the base plate 31 and is located on the rotation path of the magnet frames 49. The rotating frames 54 are rotatably mounted on the paper guide rods 32 adjacent to the abutment frame 51. Paper support rollers 55 are rotatably mounted on the rotating frames 54. After the rotating frames 54 rotate, the paper support rollers 55 move to the bottom surface of the paper stack 33. An electromagnet 52 is slidably connected inside the abutment frame 51. A conduit 53 is embedded inside the base plate 31. A pull cable 531 passes through the conduit 53. One end of the pull cable 531 is fixedly connected to the bottom surface of the electromagnet 52, and the other end is fixedly connected to the side surface of the rotating frame 54. After the electromagnet 52 and the magnet frames 49 are attracted, the pull cable 531 pulls the rotating frame 54 to rotate.

[0052] The cable 531 is a non-elastic rope, and a roller is installed inside the tube 53 to change the sliding direction of the cable 531.

[0053] like Figures 8 to 12 As shown, the electromagnet 52 can slide up and down inside the abutment frame 51. When the rotating column 45 rotates, the magnet frame 49 contacts the top surface of the abutment frame 51, and the electromagnet 52 slides upward under the attraction of the magnetic field, thus attracting the magnet inside the magnet frame 49. At this time, the cable 531 is pulled during the upward movement of the electromagnet 52, thereby pulling the rotating frame 54 to rotate, so that the paper support roller 55 moves to the bottom of the paper stack 33 to support the paper stack 33, thereby preventing the paper stack 33 from falling off after the rotating column 45 applies pressure to the paper stack 33 and the threaded contact area on the paper guide rod 32 decreases after deformation. The setting of the paper support roller 55 ensures that the paper at the bottom of the paper stack 33 can be pulled out normally.

[0054] Meanwhile, since the magnet frame 49 and the electromagnet 52 are firmly attracted together, when the suction cup 12 picks up the paper, the rotating column 45 is fixed at both ends (one end of the magnet frame 49 is fixed to the abutment frame 51, and the other end is limited and fixed to the guide frame 48 through the cylinder 453), so that the rotating column 45 will not slip relative to the paper stack 33. While ensuring the fixing effect of the sliding frame 46 on the paper stack 33, the stability of the rotating column 45 is ensured, thereby ensuring the integrity of the top paper of the paper stack 33.

[0055] An elastic element is provided at the rotation shaft of the rotating frame 54. When the rotating frame 54 is in a certain position... Figure 9 When the rotating frame 54 is in the state of being in motion (i.e., away from the paper stack 33), the elastic element is in a stationary state, while when the rotating frame 54 is in the state of being in motion... Figure 11 In the state of being at the bottom of the paper stack 33, the elastic element is in an energy storage state. Once the electromagnet 52 is turned off and the object falls, the elastic element releases energy and drives the rotating frame 54 from the bottom. Figure 11 The state rotation back Figure 9 The state in.

[0056] In this embodiment, a slide cylinder 11 is fixedly connected inside the frame 1, and a slide block 43 is fixedly connected to the top surface of the slide of the slide cylinder 11. The telescopic end of the slide cylinder 11 faces the hot press 2.

[0057] like Figure 1 , Figure 2 and Figure 12 As shown, after the sliding section of the sliding cylinder 11 extends from the telescopic end, it drives the sliding block 43 to move away from the paper stack 33. At this time, under the guidance of the guide frame 48, the rotating column 45 moves from... Figure 12 The state rotation back Figure 1 In the state of being in the middle, and away from the paper stack 33, the bracket mechanism 4 is reset. After the paper stack 33 is placed, the telescopic end of the slide cylinder 11 is retracted, so that the rotating column 45 is close to the paper stack 33 to support the new paper stack 33 and share the pressure on the adjacent guide rod 32.

[0058] In this embodiment, a suction cup 12 located on the bottom surface of the paper stack 33 is provided inside the frame 1, and a paper blowing port 13 is provided inside the frame 1 to blow the paper sucked by the suction cup 12 toward the hot press 2.

[0059] Working principle:

[0060] When using this equipment to produce disposable paper pallets, first place the paper stack 33 inside the guide rod 32 of the feeding mechanism 3, then retract the extended slide cylinder 11, so that the rotating column 45 moves toward the paper stack 33 until the pressure plate 47 abuts against the side of the paper stack 33, and then start processing.

[0061] At this time, some of the paper in the paper stack 33 will push the sliding frame 46 to slide into the rotating column 45, thereby making the sliding frame 46 contact the abutment shaft 44.

[0062] As the suction cup 12 removes paper from the bottom of the paper stack 33, the height of the paper stack 33 gradually decreases. When the height of the paper stack 33 decreases to the point where no paper is in contact with the sliding frame 46, the sliding frame 46 begins to slide outward under the push of the outward push spring 452, thereby allowing the rotating column 45 to rotate. Driven by the torsion spring 441, the rotating column 45 rotates, causing the sliding frame 46 and the pressure plate 47 to abut against the top surface of the paper stack 33. As the magnet frame 49 cooperates with the abutment frame 51, the electromagnet 52 moves towards the magnet frame 49 under the drive of the magnetic field, thereby pulling the cable 531 to drive the rotating frame 54 to rotate, causing the paper support roller 55 to rotate to the bottom surface of the paper stack 33, preventing the pressure exerted by the sliding frame 46 on the paper stack 33 from causing the paper stack 33 to detach from the paper guide rod 32. (A rotating frame 54 and its related structure can be set on other paper guide rods 32 as needed to enhance the supporting effect on the paper stack 33.) As the paper in the remaining paper stack 33 is pulled out, the sliding frame 46 descends together with the height of the paper stack 33, so as to always remain in contact with the paper stack 33.

[0063] When all the paper in the paper stack 33 is removed, the electromagnet 52 is turned off and the slide cylinder 11 is activated. As the telescopic end of the slide cylinder 11 extends, the rotating column 45, while sliding with the slide block 43, is guided by the guide frame 48 to rotate back to a state parallel to the axis of the paper stack 33, thus completing the reset of the rotating column 45. When further processing is required, it is only necessary to retract the telescopic end of the slide cylinder 11 (at the same time, the electromagnet 52 is activated).

[0064] After the suction cup 12 rises to abut the paper at the bottom of the paper stack 33, the paper is adsorbed onto the suction cup 12 by activating the suction cup 12. Then, the suction cup 12 is driven down to remove the paper from the feeding mechanism 3. Subsequently, the suction cup 12 is closed and airflow is ejected from the paper blowing port 13 to blow the paper and make it slide along the inclined plane into the hot press 2. The fixing column set near the mold in the hot press 2 is used to ensure that the paper is in the correct position. After the hot pressing is completed, airflow is ejected from the nozzle in the hot press 2 to demold and make the tray slide out of the frame 1 along the inclined plane.

[0065] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A food-grade tray tilting hot-pressing device, comprising a frame (1), wherein an inclined feeding mechanism (3) is arranged on the frame (1), the feeding mechanism (3) comprising a bottom plate (31) and a plurality of paper guide rods (32), and a paper stack (33) is placed in the plurality of paper guide rods (32), characterized in that, Also include: The bracket mechanism (4) includes a mounting seat (41) fixedly connected to the top surface of the bottom plate (31), the top surface of the mounting seat (41) is provided with a sliding groove (42), the sliding groove (42) is slidably connected with a sliding seat (43), the sliding seat (43) is fixedly sleeved with an abutting shaft (44), both ends of the abutting shaft (44) are rotatably installed with a rotating column (45), the rotating column (45) is slidably connected with a sliding frame (46) on the side facing the paper stack (33), the sliding frame (46) is hingedly connected with a pressing plate (47) on the side facing the paper stack (33), the pressing plate (47) is abutted on the side surface of the paper stack (33), the height of the sliding frame (46) is less than the rotating column (45), the mounting seat (41) is in the inclined direction of the paper stack (33); The abutting shaft (44) is sleeved with a torsion spring (441), one end of the torsion spring (441) is fixedly connected to the abutting shaft (44), the other end is fixedly connected to the rotating column (45), the torsion spring (441) drives the rotating column (45) to rotate towards the direction of the paper stack (33).

2. A food grade tray tilting hot press apparatus as claimed in claim 1, wherein: The abutting shaft (44) is provided with an abutting surface facing the paper stack (33), when the pressing plate (47) contacts the paper stack (33), the sliding frame (46) is abutted on the abutting surface provided on the abutting shaft (44).

3. A food grade tray tilting hot press apparatus as claimed in claim 1, wherein: Both sides of the rotating column (45) are fixedly connected with a cylinder (453), both sides of the mounting seat (41) are fixedly connected with a symmetric stop block (411), the cylinder (453) is abutted with the adjacent stop block (411).

4. A food grade tray tilting hot press apparatus as claimed in claim 3, wherein: The top surface of the bottom plate (31) is fixedly connected with a symmetric guide frame (48), one side of the guide frame (48) is provided with a guide groove, the mounting seat (41) is fixedly connected with a limiting plate (412).

5. A food grade tray tilting hot press apparatus as claimed in claim 1, wherein: The inner side surface of the rotating column (45) is fixedly connected with a plurality of limiting columns (451), the limiting columns (451) penetrate the sliding frame (46), the limiting columns (451) are sleeved with an outward pushing spring (452), the outward pushing spring (452) pushes the sliding frame (46) to the outside of the rotating column (45).

6. A food grade tray tilting hot press apparatus as claimed in claim 1, wherein: The inner side surface of the pressing plate (47) and the inner side surface of the sliding frame (46) are connected through a spring rod (471), the spring rod (471) drives the pressing plate (47) to abut with the paper stack (33).

7. A food grade tray tilting hot press apparatus as claimed in claim 1, wherein: Also include the abutment mechanism (5), it includes the abututment (51) and multiple rotating frames (54), the top surface of two rotating columns (45) is fixedly connected with magnet frame (49), the abututment (51) is fixedly connected on the top surface of bottom plate (31) and is in the rotating path of magnet frame (49), the rotating frame (54) is rotatably installed on the paper guide rod (32) adjacent to abututment (51), the rotating frame (54) is rotatably installed with the paper supporting roller (55), the rotating frame (54) is moved to the bottom surface of paper stack (33) after rotating, the electromagnet (52) is slidably connected in the abututment (51), the wire tube (53) is embedded in the bottom plate (31), the wire tube (53) is passed through with the cable (531), one end of the cable (531) is fixedly connected on the bottom surface of electromagnet (52), its other end is fixedly connected on the side surface of rotating frame (54), after the electromagnet (52) and magnet frame (49) are attracted, the cable (531) pulls the rotating frame (54) to rotate.

8. A food grade tray tilting hot press apparatus as claimed in claim 1, wherein: The sliding table air cylinder (11) is fixedly connected in the rack (1), the sliding seat (43) is fixedly connected on the top surface of the sliding table of sliding table air cylinder (11), and the telescopic end of sliding table air cylinder (11) faces the hot press (2).

9. A food grade tray tilting hot press apparatus as claimed in claim 1, wherein: The suction disc (12) is arranged in the rack (1) and located on the bottom surface of the paper stack (33), and the paper blowing port (13) is formed in the rack (1) to blow the paper sucked by the suction disc (12) to the hot press (2).

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