An injection molding device for thermoplastic plastic products

Abstract

The present invention belongs to the technical field of injection molding, and specifically is an injection molding device for thermoplastic plastic products, including a base, on which a molding assembly is arranged; the molding assembly includes a frame fixedly connected to one side of the upper end face of the base, an injection molding cylinder is arranged on one side of the upper end of the frame, two bottom plates are fixedly connected to one side of the upper end face of the base, a lower mold is slidably connected to the upper end face of the bottom plate, a sliding rod three is fixedly connected to one side of the upper end face of the base, and an upper mold is slidably connected to the sliding rod three. The present invention utilizes a boxing and material transfer mechanism to allow the molded plastic products to be separated from the mold cavity and placed in a box in a regular row, thereby ensuring the neatness of the plastic products in the box, which is beneficial to subsequent unified packaging or labeling processes.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molding, and specifically relates to an injection molding device for thermoplastic plastic products. Background Art

[0002] Thermoplasticity refers to the property that a substance can flow and deform when heated and can maintain a certain shape after cooling. In the production process of thermoplastic plastic products, it is necessary to heat and melt the plastic through an injection molding device and inject it into a specific mold under high pressure. After it cools and solidifies, the plastic product with the required shape can be obtained.

[0003] The patent with the publication number CN209937510U discloses an injection molding device for plastic products, which relates to the technical field of plastic product processing equipment. Its technical key points are as follows: An injection molding device for plastic products includes a molding machine body. In the molding cavity of the molding machine body, a front mold, an intermediate mold, and a rear mold are arranged at intervals. A horizontal guide rail is arranged in the molding machine body. The front mold and the rear mold are slidably connected to the guide rail. A guide frame is arranged below the intermediate mold. The opening of the guide frame facing the intermediate mold is larger than the opening at the bottom of the intermediate mold. A guide rail is arranged on the opening side of the molding machine body. The guide rail is inclined downward along the direction away from the molding machine body. A conveying component is arranged between the guide rail and the guide frame. A receiving groove is arranged at one end of the guide rail far away from the molding machine body. This patent has the advantages of convenient material collection and labor cost savings.

[0004] However, the above technical solution still has the following deficiencies in the actual application process:

[0005] When the plastic product is formed, it will fall into the box for collection by means of demoulding. Although the collection of plastic products is realized in this way and it is convenient for subsequent transportation, the plastic products collected in this way are placed in the box in a relatively messy state. And in some cases, the formed plastic products still need to go through processes such as unified packaging or labeling after collection. When the plastic products are in a relatively messy state in the box, it is not conducive to the progress of subsequent processing procedures. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the present invention proposes an injection molding device for thermoplastic plastic products.

[0007] The technical solution adopted by the present invention to solve its technical problems is: An injection molding device for thermoplastic plastic products includes a base, and a molding component is arranged on the base;

[0008] The forming assembly includes a frame fixedly connected to one side of the upper end face of the base. One side of the upper end of the frame is provided with an injection barrel. Two bottom plates are fixedly connected to one side of the upper end face of the base. A lower mold is slidably connected to the upper end face of the bottom plate. A third slide bar is fixedly connected to one side of the upper end face of the base. An upper mold is slidably connected to the third slide bar. A demolding rod penetrates and is slidably connected to one side of the upper mold. The upper mold, the lower mold, and the demolding rod can form a complete molding cavity;

[0009] A packing and material transfer mechanism is also provided on the base;

[0010] The packing and material transfer mechanism includes a fifth guide rail mechanism installed on the base. A bearing plate is provided on the fifth guide rail mechanism. The fifth guide rail mechanism can drive the bearing plate to move in the X, Y, and Z axis directions. And a groove for receiving plastic products is provided on the upper end of the bearing plate. A first guide rail mechanism is provided on one side of the upper end of the base. An installation disc is provided on the first guide rail mechanism. The first guide rail mechanism can drive the installation disc to move in the X, Y, and Z axis directions. A plurality of clamping plates are distributed radially and slidably connected on the installation disc;

[0011] A clamping mechanism for positioning the box is also provided on the base;

[0012] The clamping mechanism includes a first clamping block fixedly connected to one side of the upper end face of the base. A second clamping block is slidably connected to one side of the upper end face of the base.

[0013] Preferably, a hydraulic cylinder is fixedly connected to one side of the upper end face of the frame. The piston end of the hydraulic cylinder is fixedly connected to one side of the upper end of the upper mold. An injection port is provided through one side of the upper mold. An injection barrel is provided on one side of the upper end face of the frame. The discharge end of the injection barrel is communicated with a discharge pipe. The discharge pipe penetrates the frame and is communicated with the injection port.

[0014] Preferably, a fourth cylinder is fixedly connected to one side of the upper end face of the bottom plate. The piston end of the fourth cylinder is fixedly connected to one side of the lower mold.

[0015] Preferably, a fifth cylinder is fixedly connected to one side of the upper end face of the upper mold. A connecting block is fixedly connected to the piston end of the fifth cylinder. The upper end of the demolding rod is fixedly connected to the connecting block.

[0016] Preferably, a third cylinder is fixedly connected to one side of the upper end face of the base. The piston end of the third cylinder is fixedly connected to one side of the second clamping block.

[0017] Preferably, a turntable is rotatably provided in the middle of the upper end face of the installation disc. A plurality of connecting rods are rotatably provided on the upper end face of the turntable. One end of the connecting rod is rotatably connected to the upper end of the clamping plate. A fourth motor is fixedly connected to one side of the lower end face of the installation disc. The output end of the fourth motor is fixedly connected to the turntable.

[0018] Preferably, a material transfer assisting mechanism for preventing plastic products from tipping over in the box body is further provided on the base;

[0019] The material transfer assisting mechanism includes a second guide rail mechanism, a third guide rail mechanism, and a fourth guide rail mechanism provided on the base. A partition is provided on the second guide rail mechanism, and the second guide rail mechanism can drive the partition to move in the X, Y, and Z axis directions. An installation block is provided on the third guide rail mechanism, and the third guide rail mechanism can drive the installation block to move in the X, Y, and Z axis directions. One side of the lower end surface of the installation block is rotatably provided with a rotating plate, and one side of the lower end of the rotating plate is rotatably provided with a roller. A tape roll is sleeved and fixedly connected on the roller. A frame body is provided on the fourth guide rail mechanism, and a telescopic plate is inserted and slidably connected inside the frame body.

[0020] Preferably, one side of the telescopic plate is threadedly connected with a first threaded rod, one end of the first threaded rod is rotatably provided on the frame body, and one side of the upper end of the frame body is fixedly connected with a fifth motor. The output end of the fifth motor is fixedly connected with one end of the first threaded rod.

[0021] Preferably, one side of the upper end surface of the installation block is fixedly connected with a first motor. The output end of the first motor is fixedly connected with one side of the upper end of the rotating plate. One side of the lower end of the rotating plate is fixedly connected with a third motor. The output end of the third motor is fixedly connected with the roller.

[0022] Preferably, a traction and attachment mechanism is further provided on the rotating plate;

[0023] The traction and attachment mechanism includes a connecting plate fixedly connected to one side of the lower end surface of the rotating plate. Two conveying rollers are rotatably provided on one side of the lower end of the connecting plate. One end of the conveying roller is fixedly connected with a gear. The two gears are meshed with each other. One side of the lower end of the connecting plate is fixedly connected with a sixth motor. The output end of the sixth motor is fixedly connected with one end of the conveying roller. Two second sliding rods are slidably connected to one side of the lower end of the connecting plate. One end of the second sliding rod is fixedly connected with a blade plate. One side of the piston end of a second cylinder is fixedly connected with the blade plate. An adjusting rod is slidably connected to one side of the lower end surface of the rotating plate. The lower end of the adjusting rod is slidably connected with two first sliding rods. One end of the first sliding rod is fixedly connected with a groove plate. An attachment roller is slidably connected to the chute on one side of the groove plate. The upper end of the adjusting rod is threadedly connected with a third threaded rod. Both ends of the third threaded rod are rotatably provided on the rotating plate. One side of the lower end surface of the rotating plate is fixedly connected with a second motor. The output end of the second motor is fixedly connected with one end of the third threaded rod. One side of the piston end of a first cylinder is fixedly connected with the groove plate. Two second threaded rods are rotatably provided at both ends of the groove plate. The second threaded rod is threadedly connected with one side of the attachment roller. A seventh motor is fixedly connected to the upper end of the groove plate. The output end of the seventh motor is fixedly connected with one end of the second threaded rod.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. For the injection molding device of a thermoplastic plastic product described in the present invention, by using the packing and material transfer mechanism, the formed plastic products can be separated from the mold cavity and regularly placed row by row in the box, thus ensuring the neatness of the plastic products in the box and facilitating subsequent processes such as unified packaging or labeling.

[0026] 2. For the injection molding device of a thermoplastic plastic product described in the present invention, by using the material transfer auxiliary mechanism and the traction and attachment mechanism, when each group of stacked plastic products is placed in the box, there will be an independent placement area and it will always be blocked, thus avoiding the situation where the plastic products are stacked high and not blocked on all sides, resulting in tipping due to external forces, vibrations and other factors. This further ensures the smooth progress of the material transfer work. Moreover, when using the packing and material transfer mechanism to place the plastic products, the plastic product on the uppermost side of the last group of plastic products in each row will be blocked by the tape. Since the plastic product on the uppermost side is blocked, the other plastic products are not likely to tip either. When subsequently taking out the plastic products in the box, the two tapes can also be easily removed without affecting other operations, thus avoiding the situation where when using the packing and material transfer mechanism to place the plastic products in the box, due to the gap between the last group of plastic products in each direction and the box and the fact that the gap cannot accommodate another group of plastic products, the plastic products will tip or slide during the placement process and subsequent transportation process due to this gap, further ensuring the stability of the plastic products in the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the drawings.

[0028] Figure 1 is the three-dimensional structure schematic diagram of the present invention;

[0029] Figure 2 is the three-dimensional structure schematic diagram of the second guide rail mechanism;

[0030] Figure 3 is the three-dimensional structure schematic diagram of the rotating plate;

[0031] Figure 4 is Figure 3 the partial enlarged view at A in;

[0032] Figure 5 is the three-dimensional structure schematic diagram of the first guide rail mechanism;

[0033] Figure 6 is the three-dimensional structure schematic diagram of the clamping plate;

[0034] Figure 7 is Figure 6 the partial enlarged view at B in;

[0035] Figure 8 is a three-dimensional structure schematic diagram of four places of the guide rail mechanism;

[0036] Figure 9 is Figure 8 a partial enlarged view of part C in

[0037] Figure 10 is a three-dimensional structure schematic diagram of the frame;

[0038] Figure 11 is Figure 10 a partial enlarged view of part D in

[0039] Figure 12 is a three-dimensional structure schematic diagram of the partition;

[0040] Figure 13 is a three-dimensional structure schematic diagram of the upper mold;

[0041] Figure 14 is a three-dimensional structure schematic diagram of the rotating roller.

[0042] In the figure: 1. Base; 2. Guide rail mechanism one; 3. Frame; 4. Guide rail mechanism two; 5. Guide rail mechanism three; 6. Partition; 7. Guide rail mechanism four; 8. Frame body; 9. Installation block; 10. Motor one; 11. Rotating plate; 12. Motor two; 13. Adjusting rod; 14. Tape roll; 15. Motor three; 16. Cylinder one; 17. Slide bar one; 18. Groove plate; 19. Connecting plate; 20. Cylinder two; 21. Slide bar two; 22. Gear; 23. Blade plate; 24. Conveyor roller; 25. Installation disc; 26. Motor four; 27. Turntable; 28. Connecting rod; 29. Clamping plate; 30. Clamping block one; 31. Clamping block two; 32. Cylinder three; 33. Motor five; 34. Threaded rod one; 35. Telescopic plate; 36. Hydraulic cylinder; 37. Injection barrel; 38. Discharge pipe; 39. Upper mold; 40. Slide bar three; 41. Bottom plate; 42. Lower mold; 43. Cylinder four; 44. Guide rail mechanism five; 45. Bearing plate; 46. Demolding rod; 47. Cylinder five; 48. Connecting block; 49. Injection port; 50. Rotating roller; 51. Motor six; 52. Motor seven; 53. Threaded rod two; 54. Attaching roller; 55. Threaded rod three. Detailed implementation manners

[0043] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0044] Please refer to Figures 1 - 14, the present invention provides a technical solution: an injection molding device for thermoplastic plastic products, including a base 1, on which a molding component is provided;

[0045] The molding component includes a frame body 3 fixedly connected to one side of the upper end surface of the base 1. On one side of the upper end of the frame body 3, an injection barrel 37 is provided. On one side of the upper end surface of the base 1, two bottom plates 41 are fixedly connected. On the upper end surface of the bottom plates 41, a lower mold 42 is slidably connected. On one side of the upper end surface of the base 1, a third slide bar 40 is fixedly connected. The third slide bar 40 is slidably connected with an upper mold 39. One side of the upper mold 39 penetrates and is slidably connected with a demolding rod 46. The upper mold 39, the lower mold 42, and the demolding rod 46 can form a complete molding cavity;

[0046] A packing and transferring mechanism is also provided on the base 1;

[0047] The packing and transferring mechanism includes a fifth guide rail mechanism 44 installed on the base 1. On the fifth guide rail mechanism 44, a bearing plate 45 is provided. The fifth guide rail mechanism 44 can drive the bearing plate 45 to move in the X, Y, and Z axis directions. And on the upper end of the bearing plate 45, a groove for receiving plastic products is provided. On one side of the upper end surface of the base 1, a first guide rail mechanism 2 is provided. On the first guide rail mechanism 2, an installation disc 25 is provided. The first guide rail mechanism 2 can drive the installation disc 25 to move in the X, Y, and Z axis directions. A plurality of clamping plates 29 are distributed radially and slidably connected on the installation disc 25;

[0048] A clamping mechanism for positioning the box is also provided on the base 1;

[0049] The clamping mechanism includes a first clamping block 30 fixedly connected to one side of the upper end surface of the base 1, and a second clamping block 31 slidably connected to one side of the upper end surface of the base 1.

[0050] In this embodiment, as Figure 1 , Figures 5 - 7 , Figures 10 - 11 , Figure 13 shown, on one side of the upper end surface of the frame body 3, a hydraulic cylinder 36 is fixedly connected. The piston end of the hydraulic cylinder 36 is fixedly connected to one side of the upper end of the upper mold 39. An injection port 49 is provided through one side of the upper mold 39. On one side of the upper end surface of the frame body 3, an injection barrel 37 is provided. The discharge end of the injection barrel 37 is communicated with a discharge pipe 38. The discharge pipe 38 penetrates the frame body 3 and is communicated with the injection port 49.

[0051] On one side of the upper end surface of the bottom plate 41, a fourth cylinder 43 is fixedly connected. The piston end of the fourth cylinder 43 is fixedly connected to one side of the lower mold 42.

[0052] On one side of the upper end surface of the upper mold 39, a fifth cylinder 47 is fixedly connected. The piston end of the fifth cylinder 47 is fixedly connected to a connecting block 48. The upper end of the demolding rod 46 is fixedly connected to the connecting block 48.

[0053] One side of the upper end surface of the base 1 is fixedly connected with a third cylinder 32, and the piston end of the third cylinder 32 is fixedly connected with one side of the second clamping block 31.

[0054] In the middle of the upper end surface of the mounting plate 25, a turntable 27 is rotatably arranged. On the upper end surface of the turntable 27, a plurality of connecting rods 28 are rotatably arranged. One end of the connecting rod 28 is rotatably connected with the upper end of the clamping plate 29. One side of the lower end surface of the mounting plate 25 is fixedly connected with a fourth motor 26, and the output end of the fourth motor 26 is fixedly connected with the turntable 27.

[0055] Specifically, in the prior art, after the plastic product is formed, it will fall into the box for collection by means of demoulding. Although the collection of the plastic product is realized in this way and it is convenient for subsequent transportation, however, the plastic products collected in this way are placed in the box in a relatively messy state. In some cases, the formed plastic products still need to be subjected to processes such as unified packaging or labeling after collection. When the plastic products are in a relatively messy state in the box, it is not conducive to the subsequent processing procedures.

[0056] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0057] The plastic product in this embodiment is a plastic bowl, and the plastic bowl is a relatively common containing container. One corner of the box for containing the plastic products is fitted with the first clamping block 30, and then the second clamping block 31 is driven to move by the third cylinder 32 until the second clamping block 31 is fitted with the other corner of the box, so that the box can be fixed under the action of the first clamping block 30 and the second clamping block 31 to ensure the stability of the box.

[0058] The two fourth cylinders 43 are used to drive the two lower molds 42 to slide until they are fitted at the same time, and then the hydraulic cylinder 36 is used to drive the upper mold 39 to descend until the upper mold 39 is fitted with the lower mold 42. At this time, the upper mold 39 and the two lower molds 42 form a complete molding cavity. At this time, the raw material can be transported to the molding cavity through the injection barrel 37, the discharge pipe 38 and the injection port 49.

[0059] After the plastic product is cooled and formed in the molding cavity, the upper mold 39 is driven to move upward. At the same time, the two lower molds 42 move away from each other. At this time, the plastic product may adhere to the upper mold 39. Therefore, the air cylinder five 47 can drive the connecting block 48 to descend, so that the demolding rod 46 passes through the upper mold 39 and pushes the plastic product to separate it from the upper mold 39 until the plastic product falls to the groove on the bearing plate 45. Then, repeat the above operation. Whenever a plastic product falls onto the bearing plate 45, the bearing plate 45 will move downward under the action of the guide rail mechanism five 44. The guide rail mechanism five 44 is a conventional displacement mechanism and will not be elaborated here too much. In this way, the plastic products can be stacked. Moreover, since the plastic product is a plastic bowl and the plastic bowl is arc-shaped, the plastic bowl above is embedded in the inner cavity of the plastic bowl below, which is beneficial to maintaining stability. When the plastic products on the bearing plate 45 are stacked to a certain number, the bearing plate 45 is driven to move away from the bottom of the lower mold 42 and is located below the mounting plate 25. At this time, the guide rail mechanism one 2 can be used again to drive the clamping plate 29 to descend until the bottom of the clamping plate 29 contacts the upper end surface of the bearing plate 45. At this time, the multiple stacked plastic products are surrounded by multiple clamping plates 29. Then, the motor four 26 drives the turntable 27 to rotate, so that the multiple connecting rods 28 rotate simultaneously. Then, the multiple clamping plates 29 move radially at the same time until all the plastic products are clamped. At this time, the guide rail mechanism one 2 is used to drive the clamping plate 29 to move into the box body, and the plastic products are placed in the box body. Moreover, the plastic products are placed orderly along the edge of the box body. Then, repeat the above operation, and the formed plastic products can be placed in the box body row by row regularly, thus ensuring the neatness of the plastic products in the box body and being beneficial to subsequent processes such as unified packaging or labeling.

[0060] In this embodiment, as Figures 1 - 5 、 Figures 8 - 9 、 Figure 12 、 Figure 14 shown, a material transfer auxiliary mechanism for preventing the plastic products from tipping in the box body is further provided on the base 1;

[0061] The material transfer auxiliary mechanism includes a guide rail mechanism two 4, a guide rail mechanism three 5, and a guide rail mechanism four 7 provided on the base 1. A partition 6 is provided on the guide rail mechanism two 4, and the guide rail mechanism two 4 can drive the partition 6 to move in the X, Y, and Z axis directions. A mounting block 9 is provided on the guide rail mechanism three 5, and the guide rail mechanism three 5 can drive the mounting block 9 to move in the X, Y, and Z axis directions. One side of the lower end surface of the mounting block 9 is rotatably provided with a rotating plate 11, and one side of the lower end of the rotating plate 11 is rotatably provided with a roller 50. A tape roll 14 is sleeved and fixedly connected on the roller 50. A frame 8 is provided on the guide rail mechanism four 7, and a telescopic plate 35 is inserted and slidably connected inside the frame 8.

[0062] One side of the telescopic plate 35 is threadedly connected with a first threaded rod 34. One end of the first threaded rod 34 is rotatably arranged on the frame 8. One side of the upper end of the frame 8 is fixedly connected with a fifth motor 33. The output end of the fifth motor 33 is fixedly connected with one end of the first threaded rod 34.

[0063] One side of the upper end surface of the mounting block 9 is fixedly connected with a first motor 10. The output end of the first motor 10 is fixedly connected with one side of the upper end of the rotating plate 11. One side of the lower end of the rotating plate 11 is fixedly connected with a third motor 15. The output end of the third motor 15 is fixedly connected with the roller 50.

[0064] A traction and attachment mechanism is further arranged on the rotating plate 11;

[0065] The traction and attachment mechanism includes a connecting plate 19 fixedly connected with one side of the lower end surface of the rotating plate 11. Two conveying rollers 24 are rotatably arranged on one side of the lower end of the connecting plate 19. One end of the conveying roller 24 is fixedly connected with a gear 22. The two gears 22 are meshed with each other. One side of the lower end of the connecting plate 19 is fixedly connected with a sixth motor 51. The output end of the sixth motor 51 is fixedly connected with one end of the conveying roller 24. Two second sliding rods 21 are slidably connected with one side of the lower end of the connecting plate 19. One end of the second sliding rod 21 is fixedly connected with a blade plate 23. One side of the lower end of the connecting plate 19 is fixedly connected with a second cylinder 20. The piston end of the second cylinder 20 is fixedly connected with one side of the blade plate 23. One side of the lower end surface of the rotating plate 11 is slidably connected with an adjusting rod 13. Two first sliding rods 17 are slidably connected with the lower end of the adjusting rod 13. One end of the first sliding rod 17 is fixedly connected with a groove plate 18. An attaching roller 54 is slidably connected with the chute on one side of the groove plate 18. The upper end of the adjusting rod 13 is threadedly connected with a third threaded rod 55. Both ends of the third threaded rod 55 are rotatably arranged on the rotating plate 11. One side of the lower end surface of the rotating plate 11 is fixedly connected with a second motor 12. The output end of the second motor 12 is fixedly connected with one end of the third threaded rod 55. One side of the lower end of the adjusting rod 13 is fixedly connected with a first cylinder 16. The piston end of the first cylinder 16 is fixedly connected with one side of the groove plate 18. Two second threaded rods 53 are rotatably arranged at both ends of the groove plate 18. The second threaded rod 53 is threadedly connected with one side of the attaching roller 54. The upper end of the groove plate 18 is fixedly connected with a seventh motor 52. The output end of the seventh motor 52 is fixedly connected with one end of the second threaded rod 53.

[0066] Specifically, in the above embodiment, although the plastic products can be neatly placed in the box through the packing and material transferring mechanism, however, in order to make full use of the storage space of the box, the plastic products need to be stacked. When the plastic products stacked in the box are relatively high and there is no block around, the plastic products may fall due to external forces, vibrations and other factors, resulting in the plastic products that have been placed becoming messy again, affecting the work efficiency;

[0067] Therefore, to avoid the above problems, in the use of this embodiment, when a plastic product is placed in the box body, the guide rail mechanism four 7 is used to extend the frame body 8 into the box body, and according to the width of the box body, the motor five 33 drives the rotation of the first threaded rod 34, so that the telescopic plate 35 slides on the frame body 8 until one side of the frame body 8 fits against one side of the inner cavity of the box body. Then, the guide rail mechanism two 4 is used to drive the partition plate 6 to move, so that the partition plate 6 extends into the gap of the frame body 8. At this time, the packing and material transfer mechanism places the plastic product into the gap of the frame body 8. Since the plastic products are placed in sequence along the edge of the box body, the plastic products close to the edge of the box body will be blocked by the partition plate 6, the frame body 8, and the edge of the box body. The plastic products placed in the box body subsequently will be blocked by the already placed plastic products, the partition plate 6, the frame body 8, and the telescopic plate 35. When each group of stacked plastic products is placed in the box body, there will be an independent placement area and it will always be blocked, thus avoiding the situation of toppling due to external forces, vibrations, etc. because the plastic products are stacked relatively high and there is no blockage around, further ensuring the smooth progress of the material transfer work;

[0068] Although the above method can prevent plastic products from tipping over when placed in the box, in order to make rational use of the placement space in the box and enable adjacent plastic products to support each other, it is necessary to make adjacent stacked plastic products fit tightly. Therefore, this will result in a gap between the last set of plastic products placed in each direction and the edge of the box, and another set of plastic products cannot be accommodated in this gap. Therefore, during the placement process or subsequent transportation process of the plastic products, they may tip over or slip due to this gap, causing trouble. Therefore, to avoid this situation, according to the height, length, and width of the box, determine the maximum height at which the plastic products can be placed and the size of the gap between each row of plastic products and the inner wall of the box. Use the guide rail mechanism three 5 to drive the mounting block 9 to move to the edge position of the inner cavity of the box, and drive the rotating plate 11 to descend to an appropriate height. Then, start the motor three 15 and the motor six 51 simultaneously. The tape reel 14 unwinds the tape. At the same time, under the action of the gear 22, the two conveyor rollers 24 rotate in different directions simultaneously to traction the end of the tape. When the end of the tape is at an appropriate height, drive the attaching roller 54 to move horizontally by driving the screw rod three 55 to rotate with the motor two 12. The attaching roller 54 first contacts the non-adhesive surface of the tape, and then the end of the tape can be pushed, pressing the end of the tape against the inner wall of the box. Then, drive the attaching roller 54 to move up and down by driving the screw rod two 53 to rotate with the motor seven 52, firmly attaching the end of the tape to one side of the inner wall of the box. Then, the guide rail mechanism three 5 drives the rotating plate 11 to move to the other side of the inner wall of the box. At the same time, the tape is also unwinding. Then, drive the blade plate 23 to move by driving the cylinder two 20 to cut the tape. At this time, the broken tape will be placed on the attaching roller 54. At this time, drive the attaching roller 54 to move horizontally again to attach the tape on the attaching roller 54 to the inner wall of the box again. At this time, a tape with the same length as the inner wall of the box is attached to the inner wall of the box. Then, drive the rotating plate 11 to rotate 90 degrees by driving the motor one 10, and attach another tape with the same width as the inner wall of the box to the inner wall of the box again. At this time, when using the packing and material transfer mechanism to place the plastic products, the uppermost plastic product in the last set of plastic products in each row will be blocked by the tape. Since the uppermost plastic product is blocked, it is not easy for the other plastic products to tip over either. When subsequently taking out the plastic products in the box, the two tapes can also be easily removed without affecting other operations. Thus, when using the packing and material transfer mechanism to place the plastic products in the box, due to the gap between the last set of plastic products in each direction and the box, and another set of plastic products cannot be accommodated in this gap, resulting in the situation that the plastic products tip over or slip due to this gap during the placement process and subsequent transportation process, further ensuring the stability of the plastic products in the box.

[0069] Working principle: Fit one corner of the box for holding plastic products with the first clamping block 30, and then drive the second clamping block 31 to move through the third cylinder 32 until the second clamping block 31 fits with the other corner of the box, so that the box can be fixed under the action of the first clamping block 30 and the second clamping block 31 to ensure the stability of the box; Drive the two lower molds 42 to slide until they fit simultaneously by using two fourth cylinders 43, and then drive the upper mold 39 to descend by using the hydraulic cylinder 36 until the upper mold 39 fits with the lower molds 42. At this time, the upper mold 39 and the two lower molds 42 form a complete molding cavity. At this time, the raw material can be transported to the molding cavity through the injection barrel 37, the discharge pipe 38 and the injection port 49; When the plastic product is cooled and formed in the molding cavity, drive the upper mold 39 to move upward. At the same time, the two lower molds 42 move away from each other. At this time, the plastic product may adhere to the upper mold 39. Therefore, the demolding rod 46 can pass through the upper mold 39 and push the plastic product to separate it from the upper mold 39 by driving the connecting block 48 to descend through the fifth cylinder 47 until the plastic product falls into the groove on the bearing plate 45. Then repeat the above operation. Whenever a plastic product falls onto the bearing plate 45, the bearing plate 45 will move downward under the action of the fifth guide rail mechanism 44. The fifth guide rail mechanism 44 is a conventional displacement mechanism and will not be elaborated here;The plastic products can be stacked. Since the plastic products are plastic bowls and the plastic bowls are arc-shaped, the plastic bowl on the upper side is embedded in the inner cavity of the plastic bowl on the lower side, which is beneficial to maintaining stability. After the plastic products on the bearing plate 45 are stacked to a certain number, the bearing plate 45 is driven to move away from the bottom of the lower die 42 and is located below the mounting plate 25. At this time, the clamping plate 29 can be driven to descend again through the first guide rail mechanism 2 until the bottom of the clamping plate 29 contacts the upper end surface of the bearing plate 45. At this time, the multiple stacked plastic products are surrounded by multiple clamping plates 29. Then, the motor four 26 drives the turntable 27 to rotate, so that the multiple connecting rods 28 rotate simultaneously. Then, the multiple clamping plates 29 move radially at the same time until all the plastic products are clamped. At this time, the first guide rail mechanism 2 is used to drive the clamping plate 29 to move into the box body, and the plastic products are placed in the box body. Moreover, the plastic products are placed orderly along the edge of the box body. Then, the above operation is repeated, and the formed plastic products can be placed in the box body row by row regularly, thus ensuring the neatness of the plastic products in the box body, which is beneficial to subsequent processes such as unified packaging or labeling. When the plastic products are placed in the box body, the frame body 8 is extended into the box body by using the fourth guide rail mechanism 7. According to the width of the box body, the motor five 33 drives the first threaded rod 34 to rotate, so that the telescopic plate 35 slides on the frame body 8 until one side of the frame body 8 fits with one side of the inner cavity of the box body. Then, the second guide rail mechanism 4 is used to drive the partition plate 6 to move, so that the partition plate 6 extends into the gap of the frame body 8. At this time, the box loading and material transfer mechanism puts the plastic products into the gap of the frame body 8. Since the plastic products are placed in sequence along the edge of the box body, the plastic products close to the edge of the box body will be blocked by the partition plate 6, the frame body 8 and the edge of the box body. The plastic products placed in the box body subsequently will be blocked by the plastic products that have been placed, the partition plate 6, the frame body 8 and the telescopic plate 35. When each group of stacked plastic products is placed in the box body, there will be an independent placement area and is always blocked, thus avoiding the situation of tipping due to external forces, vibrations and other factors because the plastic products are stacked relatively high and there is no block around them, and further ensuring the smooth progress of the material transfer work;Although the above method can avoid the tipping of plastic products placed in the box, in order to make reasonable use of the placement space of the box and for adjacent plastic products to support each other, it is necessary to make the adjacent stacked plastic products fit tightly. Therefore, this will cause a gap between the last set of plastic products placed in each direction and the edge of the box, and another set of plastic products cannot be accommodated in this gap. Therefore, whether during the placement process or subsequent transportation process of the plastic products, they may tip over or slip due to this gap, causing trouble. Therefore, to avoid this situation, according to the height, length, and width of the box, determine the maximum height at which plastic products can be placed and the size of the gap between each row of plastic products and the inner wall of the box. Use the guide rail mechanism three 5 to drive the mounting block 9 to move to the edge position of the inner cavity of the box, and drive the rotating plate 11 to descend to an appropriate height. Then, start the motor three 15 and the motor six 51 simultaneously. The tape reel 14 unwinds the tape. At the same time, under the action of the gear 22, the two conveyor rollers 24 rotate in different directions simultaneously to traction the end of the tape. When the end of the tape is at an appropriate height, drive the attaching roller 54 to move horizontally by driving the threaded rod three 55 to rotate with the motor two 12. The attaching roller 54 first contacts the non-adhesive surface of the tape, and then can push the end of the tape, press the end of the tape against the inner wall of the box, and drive the attaching roller 54 to move up and down by driving the threaded rod two 53 to rotate with the motor seven 52 to firmly attach the end of the tape to one side of the inner wall of the box. Then, the guide rail mechanism three 5 drives the rotating plate 11 to move to the other side of the inner wall of the box. At the same time, the tape is also being unwound. Then, drive the blade plate 23 to move by driving the cylinder two 20 to cut the tape. At this time, the broken tape will be placed on the attaching roller 54. At this time, drive the attaching roller 54 to move horizontally again to attach the tape placed on the attaching roller 54 to the inner wall of the box again. At this time, a tape of the same length as the inner wall of the box is attached to the inner wall of the box. Then, drive the rotating plate 11 to rotate 90 degrees by driving the motor one 10 to attach another tape of the same width as the inner wall of the box to the inner wall of the box. At this time, when using the packing and material transfer mechanism to place the plastic products, the uppermost plastic product of the last set of plastic products in each row will be blocked by the tape. Since the uppermost plastic product is blocked, it is not easy for the other plastic products to tip over either. When subsequently taking out the plastic products in the box, the two tapes can also be easily removed without affecting other operations. Thus, when using the packing and material transfer mechanism to place the plastic products in the box, due to the gap between the last set of plastic products in each direction and the box, and another set of plastic products cannot be accommodated in this gap, it is further ensured that the plastic products in the box are stable during the placement process and subsequent transportation process, and the situation of tipping over and slipping due to this gap is avoided.;

[0070] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for thermoplastic plastic products, comprising a base (1), characterized in that: The base (1) is provided with a molding component; The molding assembly comprises a frame (3) fixedly connected to one side of the upper end surface of the base (1), an injection cylinder (37) is arranged on one side of the upper end of the frame (3), two bottom plates (41) are fixedly connected to one side of the upper end surface of the base (1), the upper end surface of the bottom plates (41) is slidably connected to a lower mold (42), a sliding rod three (40) is fixedly connected to one side of the upper end surface of the base (1), the sliding rod three (40) is slidably connected to an upper mold (39), a demoulding rod (46) passes through one side of the upper mold (39) and is slidably connected, and the upper mold (39), the lower mold (42) and the demoulding rod (46) can form a complete molding cavity; The base (1) is also provided with a box loading and material moving mechanism; The box loading and material transfer mechanism comprises a guide rail mechanism five (44) mounted on the base (1), a bearing plate (45) being arranged on the guide rail mechanism five (44), the guide rail mechanism five (44) being capable of driving the bearing plate (45) to move in the directions of the X, Y and Z axes, and a groove for receiving plastic products being arranged at the upper end of the bearing plate (45), a guide rail mechanism one (2) being arranged on one side of the upper end of the base (1), a mounting plate (25) being arranged on the guide rail mechanism one (2), the guide rail mechanism one (2) being capable of driving the mounting plate (25) to move in the directions of the X, Y and Z axes, and a plurality of clamping plates (29) being radially distributed and slidably connected to the mounting plate (25); The base (1) is also provided with a clamping mechanism for positioning the box; The clamping mechanism comprises a clamping block 1 (30) fixedly connected to one side of the upper end surface of the base (1); a clamping block 2 (31) is slidably connected to one side of the upper end surface of the base (1); and a material transfer auxiliary mechanism for preventing the plastic product from tipping over in the box is also provided on the base (1); The material transfer auxiliary mechanism comprises a guide rail mechanism 2 (4), a guide rail mechanism 3 (5), and a guide rail mechanism 4 (7) which are arranged on the base (1); a partition plate (6) is arranged on the guide rail mechanism 2 (4); the guide rail mechanism 2 (4) can drive the partition plate (6) to move in the directions of the X, Y, and Z axes; a mounting block (9) is arranged on the guide rail mechanism 3 (5); the guide rail mechanism 3 (5) can drive the mounting block (9) to move in the directions of the X, Y, and Z axes; a rotating plate (11) is rotatably arranged on one side of the lower end surface of the mounting block (9); a rotating roller (50) is rotatably arranged on one side of the lower end of the rotating plate (11); a tape roll (14) is sleeved and fixedly connected to the rotating roller (50); a frame (8) is arranged on the guide rail mechanism 4 (7); a telescopic plate (35) is inserted and slidably connected to the inner side of the frame (8).

2. The device for injection molding a thermoplastic product according to claim 1, characterized in that: A hydraulic cylinder (36) is fixedly connected to one side of the upper end surface of the frame (3); a piston end of the hydraulic cylinder (36) is fixedly connected to one side of the upper end of an upper mold (39); an injection port (49) is provided through one side of the upper mold (39); an injection cylinder (37) is provided on one side of the upper end surface of the frame (3); a discharge end of the injection cylinder (37) is connected to a discharge pipe (38); the discharge pipe (38) passes through the frame (3) and is connected to the injection port (49).

3. The device for injection molding a thermoplastic product according to claim 1, characterized in that: One side of the upper end surface of the bottom plate (41) is fixedly connected to a cylinder four (43), and the piston end of the cylinder four (43) is fixedly connected to one side of the lower mold (42).

4. The device for injection molding a thermoplastic product according to claim 1, characterized in that: One side of the upper end surface of the upper mold (39) is fixedly connected to a cylinder five (47), the piston end of the cylinder five (47) is fixedly connected to a connecting block (48), and the upper end of the demoulding rod (46) is fixedly connected to the connecting block (48).

5. The device for injection molding a thermoplastic product according to claim 1, characterized in that: One side of the upper end surface of the base (1) is fixedly connected to a cylinder three (32), and the piston end of the cylinder three (32) is fixedly connected to one side of the clamping block two (31).

6. The device for injection molding a thermoplastic product according to claim 5, characterized in that: A turntable (27) is rotatably provided at the middle of the upper end surface of the mounting plate (25), and a plurality of connecting rods (28) are rotatably provided at the upper end surface of the turntable (27), one end of the connecting rod (28) is rotatably connected to the upper end of the clamping plate (29), and a motor four (26) is fixedly connected to one side of the lower end surface of the mounting plate (25), and the output end of the motor four (26) is fixedly connected to the turntable (27).

7. The device for injection molding a thermoplastic product according to claim 1, characterized in that: One side of the telescopic plate (35) is threadedly connected to a threaded rod (34); one end of the threaded rod (34) is rotatably arranged on the frame (8); one side of the upper end of the frame (8) is fixedly connected to a motor (33); the output end of the motor (33) is fixedly connected to one end of the threaded rod (34).

8. The device for injection molding a thermoplastic product according to claim 1, characterized in that: A motor 1 (10) is fixedly connected to one side of the upper end surface of the mounting block (9), and an output end of the motor 1 (10) is fixedly connected to one side of the upper end of the rotating plate (11). A motor 3 (15) is fixedly connected to one side of the lower end of the rotating plate (11), and an output end of the motor 3 (15) is fixedly connected to the rotating roller (50).

9. The device for injection molding a thermoplastic product according to claim 8, characterized in that: The rotating plate (11) is also provided with a traction and attachment mechanism; The traction and attachment mechanism comprises a connecting plate (19) fixedly connected to one side of the lower end surface of the rotating plate (11); two conveying rollers (24) are rotatably provided on one side of the lower end of the connecting plate (19); one end of the conveying roller (24) is fixedly connected to a gear (22); the two gears (22) are meshed with each other; one side of the lower end of the connecting plate (19) is fixedly connected to a motor six (51); the output end of the motor six (51) is fixedly connected to one end of the conveying roller (24); one side of the lower end of the connecting plate (19) is slidably connected to two sliding rods two (21); one end of the sliding rod two (21) is fixedly connected to a blade plate (23); one side of the lower end of the connecting plate (19) is fixedly connected to a cylinder two (20); the piston end of the cylinder two (20) is fixedly connected to one side of the blade plate (23); one side of the lower end surface of the rotating plate (11) is slidably connected to an adjusting rod (13); the lower end of the adjusting rod (13) is slidably connected to two sliding rods one (1 7), one end of the sliding rod 1 (17) is fixedly connected to a groove plate (18), and an attachment roller (54) is slidably connected to a sliding groove on one side of the groove plate (18). The upper end of the adjusting rod (13) is threadedly connected to a threaded rod 3 (55), and both ends of the threaded rod 3 (55) are rotatably arranged on the rotating plate (11). One side of the lower end surface of the rotating plate (11) is fixedly connected to a motor 2 (12), and the output end of the motor 2 (12) is fixedly connected to one end of the threaded rod 3 (55). One side of the lower end of the adjusting rod (13) is fixedly connected to a cylinder 1 (16), and the piston end of the cylinder 1 (16) is fixedly connected to one side of the groove plate (18). The two ends of the groove plate (18) are rotatably arranged with a threaded rod 2 (53), and the threaded rod 2 (53) is threadedly connected to one side of the attachment roller (54). The upper end of the groove plate (18) is fixedly connected to a motor 7 (52), and the output end of the motor 7 (52) is fixedly connected to one end of the threaded rod 2 (53).

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