A production device and production method for processing plastic lunch boxes

Abstract

The present invention discloses a production device for processing plastic lunch boxes, including a base, a power box fixedly installed on the top of the base, a conveying cylinder fixedly installed on one side of the power box, a sheet extrusion head for extruding sheet materials fixedly connected to one end of the conveying cylinder, a feeding mechanism arranged on the base and on one side of the sheet extrusion head, an air supply mechanism arranged inside the feeding mechanism for rapidly cooling the sheet material and preventing the sheet extrusion material from adhering to the surface of the feeding mechanism. In the present invention, after the sheet material is extruded through the sheet extrusion head, it will be pulled out to the top of the feeding mechanism, and then the air supply mechanism will provide a certain pushing force for the feeding mechanism, so that the sheet material can be suspended above the feeding mechanism, and then the feeding mechanism will rotate, because the force generated by the rotation can make the inclined blowing holes provide the sheet material with a force to move forward, so that the sheet material after extrusion can be transported without contact.

Description

Technical Field

[0001] The invention relates to the technical field of plastic lunch boxes, in particular to a production device for processing plastic lunch boxes and a production method thereof. Background Art

[0002] Plastic lunch boxes are plastic containers made of food-grade plastic materials for the convenience of taking food out. It is a very common household plastic product in our daily life and an indispensable plastic container for picnics or hiking. Plastic lunch boxes are also available in a variety of styles and sizes.

[0003] In the process of processing plastic lunch boxes, it is necessary to use an extruder to extrude sheet materials. For example, the authorized patent (CN105500727) discloses a plastic extruder, including a mold distributor, a water mold temperature controller, a shearing machine and a control system, characterized in that: the mold distributor includes an extrusion screw, a distributor and an extrusion mold, the extrusion screw is divided into a main screw driven by a main machine and an auxiliary screw driven by an auxiliary machine, the outlet of the main screw is connected to the inlet of the main flow channel of the distributor, the outlet of the auxiliary screw is connected to the inlet of the auxiliary flow channel of the distributor, and the main flow channel and the auxiliary flow channel of the distributor The main flow channel and the auxiliary flow channel of the distributor intersect to form a total flow channel outlet and are connected to the inlet of the extrusion mold; the shearing machine includes a conveying mechanism, a shearing knife and a feeding length meter, the conveying mechanism is connected to the shearing knife, a cursor detector is provided in front of the inlet of the shearing knife, and the corresponding cursor point is marked on the diaphragm covering the plate, and the cursor detector is connected to the control system. The above patent has a reasonable structure and high working efficiency. The formed plastic sheet is of excellent quality and standard size. After the sheet material is manufactured, it is necessary to pull out the manufactured sheet material. In the prior art, the sheet material needs to be in contact with the conveyor roller when being pulled out, and the sheet material just extruded has a certain viscosity. Therefore, the traditional pulling method is very likely to cause adhesion damage to the sheet material, thereby affecting the subsequent manufacture of the sheet material. In the process of forming the lunch box, a forming mold is required for forming. In the process of forming using the forming mold, the knife die mounting plate structure in the prior art needs to be relatively high during the manufacturing process of the punching knife die. When the height increases, it will also affect the heat conduction effect, which is easy to cause adhesion in the subsequent punching process, affecting the punching pass rate. For this reason, we propose a production device for processing plastic lunch boxes and a production method thereof. Summary of the invention

[0004] The object of the present invention is to provide a production device and a production method for processing plastic lunch boxes to solve the problems that need to be solved in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a production device for processing plastic lunch boxes, comprising a base and a forming mold for increasing the punching qualified rate, the forming mold is arranged on one side of the base, a power box is fixedly installed on the top of the base, a conveying cylinder is fixedly installed on one side of the power box, an extrusion screw is fixedly connected to the output end of the power box and located inside the conveying cylinder, and a feeding mechanism is fixedly connected to the top of the conveying cylinder;

[0006] It also includes a loosening mechanism: the loosening mechanism is arranged inside the feeding mechanism, and the outer surface of the extrusion screw is provided with a driving mechanism for driving the loosening mechanism to move inside the feeding mechanism, and the driving mechanism drives the loosening mechanism to move up and down along the inside of the feeding mechanism, and the loosening mechanism that moves up and down prevents the raw materials for producing plastic lunch boxes from accumulating at the bottom of the feeding mechanism;

[0007] One end of the conveying cylinder is fixedly connected to a sheet extrusion head for extruding sheet materials, and a feeding mechanism for contactlessly guiding the sheet extrusion material is arranged on the base and located on one side of the sheet extrusion head. An air supply mechanism is arranged inside the feeding mechanism for quickly cooling the sheet material and preventing the sheet extrusion material from adhering to the surface of the feeding mechanism.

[0008] In the prior art, when the sheet material is pulled out, it needs to contact with the conveying roller, and the sheet material just extruded has a certain viscosity, so the traditional pulling method is very likely to cause adhesion damage to the sheet material, thereby affecting the subsequent manufacture of the sheet material, and in the process of forming the lunch box, a forming mold is required for forming, and in the process of forming using the forming mold, the knife die mounting plate structure in the prior art needs to be relatively high during the manufacturing process of the punching knife die, and when the height is increased, it will also affect the heat conduction effect, thereby easily causing adhesion in the subsequent punching process, affecting the punching pass rate. In the present invention, after the sheet material is extruded through the sheet extruder, it will be pulled out to the top of the feeding mechanism, and then the air supply mechanism provides a certain pushing force for the feeding mechanism, so that it can The sheet material is suspended above the feeding mechanism, which then rotates. The force generated by the rotation can enable the inclined blowing holes to provide the sheet material with a force to move forward, so that the sheet material after extrusion can be transported without contact, thereby preventing the sheet material from being damaged by bonding during transportation. When the forming mold is working, the pad set can increase the heat conduction efficiency between the heating plate and the mold body, so that it is easier to heat when punching with a cutter, and the product qualification rate will increase when punching products, while extending the service life of the cutter mold; and when in use, the setting of the "T"-shaped side connecting plate and the positioning wheel changes the original slideway structure, which can avoid the collision between the forming mold and the track, thereby reducing equipment failures and making it easier to use in actual operation.

[0009] As a further description of the above technical solution:

[0010] The molding mold includes a heating plate, a pad and a mold body. The heating plate and the mold body are fixedly connected via a pad for facilitating heating of the blade. Both sides of the heating plate are fixedly connected with "T"-shaped side connecting plates. Multiple sets of rotating shafts are fixedly installed on the side connecting plates, and the outer surfaces of the rotating shafts are rotatably connected with positioning wheels.

[0011] As a further description of the above technical solution:

[0012] The feeding mechanism includes a fixed seat, a mounting plate, a fixed shaft and a feeding roller, the mounting plates are fixedly mounted on both sides of the base through the fixed seat, a fixed shaft is rotatably connected between the two groups of the mounting plates, the outer surface of the fixed shaft is fixedly connected to the feeding roller, and the feeding roller is penetrated by a plurality of groups of obliquely arranged blowing holes, a motor is fixedly mounted on one group of the mounting plates, a first gear plate is fixedly connected to the output end of the motor, a second gear plate is fixedly mounted on the outer surface of the fixed shaft and at a position corresponding to the first gear plate, and the outer surfaces of the first gear plate and the second gear plate are connected by a connecting chain.

[0013] As a further description of the above technical solution:

[0014] The air supply mechanism includes an extension pipe, an air supply pipe and a blowing pipe. The extension pipe is fixedly installed inside the feed roller, one end of the extension pipe is fixedly connected to the air supply pipe, a blowing cavity is fixedly installed inside the extension pipe at a position corresponding to the blowing hole, and mutually connected flow cavities are formed between adjacent blowing cavities. A blowing pipe is fixedly connected on the blowing cavity at a position corresponding to the blowing hole, and the outer wall of the blowing pipe fits with the inner wall of the feed roller.

[0015] As a further description of the above technical solution:

[0016] The partition plate is provided with a flow cavity for balancing the outlet gas velocity of the blowing pipe, and the opening area of ​​the flow cavity decreases from right to left.

[0017] As a further description of the above technical solution:

[0018] The material discharge mechanism includes a material discharge barrel, a fixed plate and a limiting ring. The material discharge barrel passes through the top of the conveying cylinder and extends to the inside of the conveying cylinder. A fixed plate is fixedly installed on the top of the inner wall of the material discharge barrel, and the limiting ring is fixedly connected to the fixed plate.

[0019] As a further description of the above technical solution:

[0020] The loosening mechanism includes a telescopic rod, a positioning plate, a loosening block and a top block. The telescopic rod is slidably connected inside the limiting ring, the top of the telescopic rod is fixedly connected to the positioning plate, the bottom of the telescopic rod is fixedly connected to a truncated cone-shaped loosening block, and one side of the bottom of the loosening block is fixedly connected to the top block.

[0021] As a further description of the above technical solution:

[0022] The driving mechanism includes a sealing plate and a driving block. The outer surface of the extrusion screw is fixedly connected with a sealing plate that fits the inner wall of the conveying cylinder. One side of the sealing plate is fixedly connected with a driving block that drives the top block to move up and down. The driving block is set to an elliptical shape.

[0023] As a further description of the above technical solution:

[0024] A heat insulation bin is arranged on the top of the base and on the outer surface of the conveying cylinder, and the outer surface of the heat insulation bin is wrapped with a rock wool board.

[0025] As a further description of the above technical solution:

[0026] The production method of the production device for processing plastic lunch boxes comprises the following steps:

[0027] Step 1: First, put the raw materials to be melt-extruded into the feeding mechanism, and fix the sheet extrusion head to one end of the conveying cylinder;

[0028] Step 2: Start the power box to drive the extrusion screw to rotate, and then heat the conveying barrel to heat and melt the raw materials inside the conveying barrel, and extrude them into shape through the sheet extruder;

[0029] Step 3: When the extrusion screw rotates, the driving mechanism rotates synchronously, and the driving mechanism pushes the loosening mechanism to move up and down along the inside of the feeding mechanism, thereby preventing the accumulation of raw materials inside the feeding mechanism;

[0030] Step 4: After the sheet material is extruded, the air supply pipe supplies air to the extension pipe, and because the opening area of ​​the flow cavity is different, the air inside the extension pipe is evenly discharged through the blowing pipe;

[0031] Step 5: The gas after blowing is discharged through the obliquely arranged blowing holes, and at this time, the motor drives the feeding roller to rotate, so that the blowing holes can convey the sheet material without contact;

[0032] Step 6: The conveyed sheet material passes through a forming mold to form a lunch box.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention can complete the normal extrusion of sheet materials by arranging a power box and an extrusion screw, and when the extrusion screw rotates and extrude, the driving mechanism is used to push the loosening mechanism to move up and down along the inside of the feeding mechanism, thereby preventing the accumulation of materials at the position where the feeding mechanism is connected to the conveying cylinder. Such an arrangement can ensure the continuity of extrusion;

[0035] 2. After the sheet material is extruded through the sheet extruder, it will be pulled out to the top of the feeding mechanism, and then the air supply mechanism will provide a certain pushing force for the feeding mechanism, so that the sheet material can be suspended above the feeding mechanism, and then the feeding mechanism will rotate. The force generated by the rotation can make the inclined blowing holes provide the sheet material with a force to move forward, so that the sheet material after extrusion can be transported without contact, thereby preventing the sheet material from being bonded and damaged during transportation;

[0036] 3. The partition plate arranged inside the extension tube can ensure accurate gas delivery, and the flow cavity arranged can ensure that the gas flow rate blown out of each blowing cavity by the blowing tube is the same, so that the sheet material will not deviate when it is blown;

[0037] 4. When the forming mold is working, the pad set can increase the heat conduction efficiency between the heating plate and the mold body, so that it can be heated more easily when punching with the cutter. The product qualification rate will increase when punching products, and the service life of the cutter mold will be extended. And when in use, the setting of the "T"-shaped side connecting plate and the positioning wheel changes the original slide structure, which can avoid the collision between the forming mold and the track, thereby reducing equipment failures and making it easier to use in actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the first stereoscopic structure of the molding die of the present invention;

[0040] Figure 3 It is a schematic diagram of the second stereoscopic structure of the molding die of the present invention;

[0041] Figure 4 It is a schematic diagram of the first stereoscopic structure of the sheet extrusion head and the feeding mechanism of the present invention;

[0042] Figure 5 It is a schematic diagram of the second stereoscopic structure of the sheet extrusion head and the feeding mechanism of the present invention;

[0043] Figure 6 This is a schematic diagram of the three-dimensional connection structure between the sealing plate and the driving block of the present invention;

[0044] Figure 7 This is a schematic diagram of the three-dimensional connection structure between the sealing plate and the driving block of the present invention;

[0045] Figure 8 This is an enlarged schematic diagram of structure A of the present invention;

[0046] Fig. 9 It is a schematic diagram of the cross-sectional structure of the feed roller of the present invention;

[0047] Fig.10 It is a schematic diagram of the side cross-sectional structure of the extension tube of the present invention.

[0048] In the figure: 1 base, 2 power box, 3 conveying cylinder, 4 insulation bin, 5 unloading mechanism, 6 extrusion screw, 7 loosening mechanism, 8 sheet extrusion head, 9 feeding mechanism, 10 unloading barrel, 11 fixed plate, 12 limit ring, 13 telescopic rod, 14 positioning plate, 15 loosening block, 16 top block, 17 sealing plate, 18 driving block, 19 fixed seat, 20 mounting plate, 21 fixed rotating shaft, 22 feeding roller, 23 blowing hole, 24 extension pipe, 25 first gear plate, 26 second gear plate, 27 connecting chain, 28 motor, 29 air supply pipe, 30 partition plate, 31 blowing cavity, 32 circulation cavity, 33 blowing pipe, 34 molding mold, 35 heating plate, 36 pad, 37 mold body, 38 side connecting plate, 39 rotating shaft, 40 positioning wheel. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 The present invention provides a technical solution: a production device for processing plastic lunch boxes, comprising a base 1 and a forming mold 34 for increasing the punching qualified rate, the forming mold 34 is arranged on one side of the base 1, a power box 2 is fixedly installed on the top of the base 1, a conveying cylinder 3 is fixedly installed on one side of the power box 2, an extrusion screw 6 is fixedly connected to the output end of the power box 2 and located inside the conveying cylinder 3, and a feeding mechanism 5 is fixedly connected to the top of the conveying cylinder 3;

[0051] The molding die 34 comprises a heating plate 35, a backing plate 36 and a die body 37. The heating plate 35 and the die body 37 are fixedly connected via the backing plate 36 for heating the blade. Both sides of the heating plate 35 are fixedly connected with a "T"-shaped side connecting plate 38. A plurality of rotating shafts 39 are fixedly mounted on the side connecting plate 38. The outer surface of the rotating shaft 39 is rotatably connected with a positioning wheel 40.

[0052] Among them, the pad 36 set when the forming mold 34 is working can increase the heat conduction efficiency between the heating plate 35 and the mold body 37, so that it can be more easily heated when using the cutting knife to punch and cut the product. The product qualification rate will increase when punching the product, and the service life of the cutting die will be extended; and when in use, the setting of the "T"-shaped side connecting plate 38 and the positioning wheel 40 changes the original slide structure, which can avoid the collision between the forming mold 34 and the track, thereby reducing equipment failures and making it easier to use in actual operation.

[0053] It also includes a loosening mechanism 7: the loosening mechanism 7 is arranged inside the feeding mechanism 5, and the outer surface of the extrusion screw 6 is provided with a driving mechanism for driving the loosening mechanism 7 to move inside the feeding mechanism 5, and the driving mechanism drives the loosening mechanism 7 to move up and down along the inside of the feeding mechanism 5, and the loosening mechanism 7 that moves up and down prevents the raw materials for producing plastic lunch boxes from accumulating at the bottom of the feeding mechanism 5;

[0054] One end of the conveying cylinder 3 is fixedly connected to a sheet extrusion head 8 for extruding sheet materials. A feeding mechanism 9 for contactlessly guiding the sheet extrusion material is provided on the base 1 and located on one side of the sheet extrusion head 8. An air supply mechanism is provided inside the feeding mechanism 9 for quickly cooling the sheet material and preventing the sheet extrusion material from adhering to the surface of the feeding mechanism 9.

[0055] Among them, after the sheet material is extruded through the sheet extruder 8, it will be pulled out to the top of the feeding mechanism 9, and then the air supply mechanism provides a certain pushing force for the feeding mechanism 9, so that the sheet material can be suspended above the feeding mechanism 9, and then the feeding mechanism 9 rotates. The force generated by the rotation can make the inclined blowing hole 23 provide the sheet material with a force to move forward, so that the sheet material after extrusion can be transported without contact, thereby preventing the sheet material from being damaged by bonding during transportation.

[0056] See also Figure 1 , Figure 4 , Figure 5 , Figure 8 , Fig. 9 and Fig.10The air supply mechanism includes an extension pipe 24, an air supply pipe 29 and a blowing pipe 33. The extension pipe 24 is fixedly installed inside the feed roller 22, and one end of the extension pipe 24 is fixedly connected to the air supply pipe 29. A blowing chamber 31 is fixedly installed inside the extension pipe 24 and at a position corresponding to the blowing hole 23. A flow chamber 32 that is interconnected is formed between adjacent blowing chambers 31. A blowing pipe 33 is fixedly connected on the blowing chamber 31 and at a position corresponding to the blowing hole 23. The outer wall of the blowing pipe 33 is in contact with the inner wall of the feed roller 22. A flow chamber 32 for balancing the outflow velocity of the blowing pipe 33 is penetrated through the partition plate 30, and the opening area of ​​the flow chamber 32 decreases from right to left.

[0057] Among them, after the sheet material is extruded, the shaft is pulled to the top of the feeding mechanism 9, and then the external blowing pump is connected to the air supply pipe 29, and then the gas passes through the circulation cavity 32 to connect the gas with the blowing hole 23 through the blowing pipe 33, and then the gas blown out of the blowing hole 23 can be used to blow up the sheet material, and the partition plate 30 arranged inside the extension tube 24 can make the gas be delivered accurately, and the opening area of ​​the circulation cavity 32 decreases from right to left in sequence to ensure that the gas flow rate blown out by the blowing pipe 33 in each blowing cavity 31 is the same, so that the sheet material will not be offset when it is blown up.

[0058] See also Figure 1 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 The feeding mechanism 9 includes a fixed seat 19, a mounting plate 20, a fixed shaft 21 and a feeding roller 22. The mounting plates 20 are fixedly mounted on both sides of the base 1 through the fixed seat 19. A fixed shaft 21 is rotatably connected between the two groups of the mounting plates 20. The outer surface of the fixed shaft 21 is fixedly connected to the feeding roller 22. The feeding roller 22 is penetrated by a plurality of groups of oblique blowing holes 23. A motor 28 is fixedly mounted on one group of the mounting plates 20. The output end of the motor 28 is fixedly connected to a first gear plate 25. A second gear plate 26 is fixedly mounted on the outer surface of the fixed shaft 21 and corresponds to the position of the first gear plate 25. The outer surfaces of the first gear plate 25 and the second gear plate 26 are connected by a connecting chain 27.

[0059] Among them, the motor 28 is started while the gas is blowing. The start of the motor 28 can utilize the first gear plate 25 and the connecting chain 27 to drive the second gear plate 26, the fixed shaft 21 and the feeding roller 22 to rotate, so that the rotating feeding roller 22 can make the blowing tube 33 constantly correspond to the blowing hole 23, so that the gas can be blown by utilizing the inclined blowing hole 23, so that the inclined blowing hole 23 can be utilized to provide a certain power source for the sheet material, so that the feeding roller 22 can be used to feed the sheet material without contact.

[0060] See also Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The unloading mechanism 5 includes a unloading barrel 10, a fixed plate 11 and a limit ring 12. The unloading barrel 10 passes through the top of the conveying cylinder 3 and extends to the inside of the conveying cylinder 3. The top of the inner wall of the unloading barrel 10 is fixedly installed with a fixed plate 11, and the fixed plate 11 is fixedly connected to the limit ring 12. The loosening mechanism 7 includes a telescopic rod 13, a positioning plate 14, a loose block 15 and a top block 16. The inside of the limit ring 12 is slidably connected with the telescopic rod 13, the top of the telescopic rod 13 is fixedly connected with the positioning plate 14, the bottom of the telescopic rod 13 is fixedly connected with a truncated cone-shaped loose block 15, and the bottom side of the loose block 15 is fixedly connected with the top block 16. The driving mechanism includes a sealing plate 17 and a driving block 18. The outer surface of the extrusion screw 6 is fixedly connected with a sealing plate 17 that fits the inner wall of the conveying cylinder 3, and one side of the sealing plate 17 is fixedly connected with a driving block 18 that drives the top block 16 to move up and down, and the driving block 18 is set to an elliptical shape.

[0061] Among them, when the extrusion screw 6 rotates following the power box 2, the sealing plate 17 and the driving block 18 are synchronously driven to rotate, and the elliptical driving block 18 can continuously contact the top block 16 at the bottom of the loose block 15, thereby pushing the loose block 15 and the telescopic rod 13 to move up and down along the limit ring 12, so that the loose block 15 can be used to continuously move up and down at the connection position between the discharge barrel 10 and the conveying barrel 3, thereby preventing the accumulation of materials when discharging.

[0062] See also Figure 1 An insulating chamber 4 is provided on the top of the base 1 and on the outer surface of the conveying tube 3. The outer surface of the insulating chamber 4 is wrapped with a rock wool board. The setting of the insulating chamber 4 can prevent the staff from being scalded by the heated conveying tube 3 when working.

[0063] Embodiment 2: The production method of the production device for processing plastic lunch boxes comprises the following steps:

[0064] Step 1: First, the raw materials to be melt-extruded are placed into the feeding mechanism 5, and the sheet extrusion head 8 is fixedly connected to one end of the conveying cylinder 3;

[0065] Step 2: Start the power box 2 to drive the extrusion screw 6 to rotate, and then heat the conveying tube 3 to heat and melt the raw materials inside the conveying tube 3, and extrude them through the sheet extrusion head 8;

[0066] Step 3: When the extrusion screw 6 rotates, the driving mechanism rotates synchronously, and the driving mechanism pushes the loosening mechanism 7 to move up and down along the inside of the unloading mechanism 5, thereby preventing the raw materials inside the unloading mechanism 5 from accumulating;

[0067] Step 4: After the sheet material is extruded, the air supply pipe 29 supplies air to the extension pipe 24. Since the opening area of ​​the flow cavity 32 is different, the air inside the extension pipe 24 is uniformly discharged through the blowing pipe 33.

[0068] Step 5: The gas after blowing is discharged through the obliquely arranged blowing hole 23, and at this time, the motor 28 drives the feeding roller 22 to rotate, so that the blowing hole 23 can convey the sheet material without contact;

[0069] Step 6: The conveyed sheet material passes through the forming mold 34 to form a lunch box.

[0070] Working principle: After the sheet material is extruded through the sheet extruder 8, it will be pulled out to the top of the feeding mechanism 9, and then the air supply mechanism provides a certain pushing force for the feeding mechanism 9, so that the sheet material can be suspended above the feeding mechanism 9, and then the feeding mechanism 9 rotates. The force generated by the rotation can make the inclined blowing hole 23 provide the sheet material with a force to move forward, so that the sheet material after extrusion can be transported without contact, thereby preventing the sheet material from being bonded and damaged during transportation. After the sheet material is extruded, the shaft is pulled to the top of the feeding mechanism 9, and then the external blowing pump is connected to the air supply pipe 29. Then the gas passes through the circulation cavity 32 to connect the gas with the blowing hole 23 through the blowing pipe 33, and then the gas blown out of the blowing hole 23 can be used to blow up the sheet material, and the partition plate 30 arranged inside the extension tube 24 can make the gas be transported accurately, and the opening area of ​​the circulation cavity 32 decreases from right to left to ensure that the gas flow rate blown out of each blowing cavity 31 by the blowing pipe 33 is the same. In this way, the sheet material will not deviate when it is blown up. The motor 28 is started while the gas is blowing. The start of the motor 28 can use the first gear plate 25 and the connecting chain 27 to drive the second gear plate 26, the fixed shaft 21 and the feeding roller 22 to rotate. In this way, the rotating feeding roller 22 can make the blowing pipe 33 constantly correspond to the blowing hole 23, so that the gas can be blown by the inclined blowing hole 23. In this way, the inclined blowing hole 23 can be used to provide a certain amount of power for the sheet material. Source, so that the feeding roller 22 can be used to feed the sheet material without contact, when the extrusion screw 6 rotates with the power box 2, the sealing plate 17 and the driving block 18 are synchronously driven to rotate, and the elliptical driving block 18 can continuously contact the top block 16 at the bottom of the loose block 15, thereby pushing the loose block 15 and the telescopic rod 13 to move up and down along the limit ring 12, so that the loose block 15 can be used to continuously move up and down at the connection position between the discharge barrel 10 and the conveying barrel 3, thereby preventing the accumulation of materials when discharging.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production device for processing plastic lunch boxes, comprising a base (1) and a forming die (34) for increasing the punching pass rate, wherein the forming die (34) is arranged on one side of the base (1), a power box (2) is fixedly mounted on the top of the base (1), and a conveying cylinder (3) is fixedly mounted on one side of the power box (2), characterized in that: An extrusion screw (6) is fixedly connected to the output end of the power box (2) and located inside the conveying cylinder (3), and a feeding mechanism (5) is fixedly connected to the top of the conveying cylinder (3); It also includes a loosening mechanism (7): the loosening mechanism (7) is arranged inside the feeding mechanism (5), and the outer surface of the extrusion screw (6) is provided with a driving mechanism for driving the loosening mechanism (7) to move inside the feeding mechanism (5), and the driving mechanism drives the loosening mechanism (7) to move up and down along the inside of the feeding mechanism (5), and the loosening mechanism (7) that moves up and down prevents the raw materials for producing plastic lunch boxes from accumulating at the bottom of the feeding mechanism (5); One end of the conveying cylinder (3) is fixedly connected to a sheet extrusion head (8) for extruding sheet materials, and a feeding mechanism (9) for contactlessly guiding the sheet extrusion material is provided on the base (1) and located on one side of the sheet extrusion head (8), and an air supply mechanism for rapidly cooling the sheet extrusion material and preventing the sheet extrusion material from adhering to the surface of the feeding mechanism (9) is provided inside the feeding mechanism (9); The molding die (34) comprises a heating plate (35), a backing plate (36) and a die body (37); the heating plate (35) and the die body (37) are fixedly connected via the backing plate (36) for facilitating heating of the blade; both sides of the heating plate (35) are fixedly connected with "T"-shaped side connecting plates (38); a plurality of sets of rotating shafts (39) are fixedly mounted on the side connecting plates (38); and the outer surfaces of the rotating shafts (39) are rotatably connected with positioning wheels (40); The feeding mechanism (9) comprises a fixed seat (19), a mounting plate (20), a fixed rotating shaft (21) and a feeding roller (22); the mounting plates (20) are fixedly mounted on both sides of the base (1) via the fixed seat (19); a fixed rotating shaft (21) is rotatably connected between two groups of the mounting plates (20); the outer surface of the fixed rotating shaft (21) is fixedly connected to the feeding roller (22); the feeding roller (22) is provided with a plurality of groups of obliquely arranged blowing holes (23); a motor (28) is fixedly mounted on one group of the mounting plates (20); the output end of the motor (28) is fixedly connected to a first gear plate (25); a second gear plate (26) is fixedly mounted on the outer surface of the fixed rotating shaft (21) and at a position corresponding to the first gear plate (25); the outer surfaces of the first gear plate (25) and the second gear plate (26) are connected via a connecting chain (27); The air supply mechanism comprises an extension tube (24), an air supply tube (29) and a blowing tube (33); the extension tube (24) is fixedly installed inside the feeding roller (22); one end of the extension tube (24) is fixedly connected to the air supply tube (29); a blowing chamber (31) is fixedly installed inside the extension tube (24) at a position corresponding to the blowing hole (23); mutually connected flow chambers (32) are formed between adjacent blowing chambers (31); a blowing tube (33) is fixedly connected to the blowing chamber (31) at a position corresponding to the blowing hole (23); and the outer wall of the blowing tube (33) is in contact with the inner wall of the feeding roller (22); A flow cavity (32) for balancing the outflow velocity of the blowing pipe (33) is provided through the partition plate (30), and the opening area of ​​the flow cavity (32) decreases from right to left.

2. A production device for processing plastic lunch boxes according to claim 1, characterized in that: The material discharge mechanism (5) comprises a material discharge barrel (10), a fixing plate (11) and a limiting ring (12); the material discharge barrel (10) passes through the top of the conveying cylinder (3) and extends into the interior of the conveying cylinder (3); a fixing plate (11) is fixedly mounted on the top of the inner wall of the material discharge barrel (10); and the limiting ring (12) is fixedly connected to the fixing plate (11).

3. A production device for processing plastic lunch boxes according to claim 2, characterized in that: The loosening mechanism (7) comprises a telescopic rod (13), a positioning plate (14), a loosening block (15) and a top block (16); the interior of the limiting ring (12) is slidably connected to the telescopic rod (13); the top of the telescopic rod (13) is fixedly connected to the positioning plate (14); the bottom of the telescopic rod (13) is fixedly connected to a truncated cone-shaped loosening block (15); and one side of the bottom of the loosening block (15) is fixedly connected to the top block (16).

4. A production device for processing plastic lunch boxes according to claim 3, characterized in that: The driving mechanism comprises a sealing plate (17) and a driving block (18); the outer surface of the extrusion screw (6) is fixedly connected to a sealing plate (17) that fits the inner wall of the conveying cylinder (3); one side of the sealing plate (17) is fixedly connected to a driving block (18) that drives the top block (16) to move up and down; the driving block (18) is arranged to be elliptical.

5. A production device for processing plastic lunch boxes according to claim 4, characterized in that: A heat insulation bin (4) is provided on the top of the base (1) and on the outer surface of the conveying cylinder (3), and the outer surface of the heat insulation bin (4) is wrapped with a rock wool board.

6. A method for processing and producing plastic lunch boxes, applicable to the production device for processing and producing plastic lunch boxes as claimed in any one of claims 1 to 5, characterized in that: The production method of the production device for processing plastic lunch boxes comprises the following steps: Step 1: firstly, the raw materials to be melt-extruded are placed into the inside of the feeding mechanism (5), and the sheet extrusion head (8) is fixedly connected to one end of the conveying cylinder (3); Step 2: starting the power box (2) to drive the extrusion screw (6) to rotate, and then heating the conveying tube (3) to heat and melt the raw materials inside the conveying tube (3), and then extrude them through the sheet extrusion head (8); Step 3: When the extrusion screw (6) rotates, the driving mechanism rotates synchronously, and the driving mechanism pushes the loosening mechanism (7) to move up and down along the inside of the unloading mechanism (5), thereby preventing the raw materials from accumulating inside the unloading mechanism (5); Step 4: After the sheet material is extruded, the air supply pipe (29) supplies air to the interior of the extension pipe (24), and because the opening areas of the flow chamber (32) are different, the air inside the extension pipe (24) is uniformly discharged through the blowing pipe (33); Step 5: The gas after blowing is discharged through the blowing hole (23) arranged obliquely, and at this time the motor (28) drives the feeding roller (22) to rotate, so that the blowing hole (23) can convey the sheet material without contact; Step 6: The conveyed sheet material passes through a forming mold (34) to be formed into a lunch box.

Images