Demolding device for plastic tray production

Abstract

The utility model discloses a demolding device for plastic tray production. The demolding device for plastic tray production comprises a working table, four guide rods are fixedly connected to the upper surface of the working table, a hydraulic cylinder is fixedly installed on the upper surface of the working table, the output end of the hydraulic cylinder is fixedly connected with a movable plate, and the movable plate is fixedly connected with a demolding device. The outer surface of each guide rod is slidably connected with the interior of a moving plate, a lower mold, an upper mold, a toothed belt and a motor are arranged below the moving plate, four stud gears are rotatably connected with the interior of the workbench, the outer surface of each stud gear is engaged with the inner wall of the toothed belt, and by arranging a first threaded rod, a fixing cylinder, a push block and other components, the inner wall of the toothed belt is meshed with the inner wall of the toothed belt; the hydraulic cylinder drives the moving plate to drive the upper mold to descend and make contact with the lower mold to compact and mold materials, then the first threaded rod drives the fixing barrel and the push block to ascend, the finished plastic tray is separated from the lower mold, and therefore the effect that the device is convenient to demold is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pallet production, in particular to a demoulding device for plastic pallet production. Background Art

[0002] Plastic pallets are a type of logistics unit used in conjunction with logistics equipment such as forklifts and shelves. They can be used to store, load and carry goods. They are one of the indispensable logistics equipment in modern logistics warehousing. The emergence of plastic pallets is to meet the needs of environmental protection. Using plastic pallets instead of wooden pallets can reduce the best product for forest damage. It is an inevitable product to adapt to the development of the logistics industry. With the continuous strengthening of food safety concepts and the high requirements for hygiene in the pharmaceutical industry, plastic pallets are favored and sought after by the food and pharmaceutical industries for their anti-corrosion, anti-moisture, anti-rust, anti-insect and mildew-proof characteristics. In addition, plastic pallets have the characteristics of high load-bearing capacity and long service life, and are widely used in chemical, textile, manufacturing and other fields.

[0003] During the production process of plastic pallets, after the plastic pallets are shaped, they need to be taken out of the mold of the injection molding machine for demoulding. The commonly used method is generally for workers to use rubber hammers to knock on the mold to loosen the molded plastic pallets, and then the workers take out the finished plastic pallets.

[0004] However, this material removal method has high requirements on the workers' knocking strength and experience, which is not convenient for removing the finished plastic pallet from the mold, reducing work efficiency, and this method is not suitable for mass production. In order to solve this technical problem, the utility model proposes a demoulding device for plastic pallet production. Utility Model Content

[0005] The main purpose of the utility model is to provide a demoulding device for producing plastic pallets, which can effectively solve the problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A demoulding device for producing plastic pallets comprises a workbench, wherein the upper surface of the workbench is fixedly connected to four guide rods, a hydraulic cylinder is fixedly installed on the upper surface of the workbench, a movable plate is fixedly connected to the output end of the hydraulic cylinder, the outer surface of each guide rod is slidably connected to the inside of the movable plate, a lower mold, an upper mold, a toothed belt and a motor are arranged below the movable plate, four column gears are rotatably connected to the inside of the workbench, the outer surface of each column gear is meshed with the inner wall of the toothed belt, the output end of the motor is fixedly connected to the bottom surface of the corresponding column gear, the upper surface of each column gear is fixedly connected to a threaded rod 1, the outer surface of each threaded rod 1 is threadedly connected to a fixed cylinder, the upper surface of each fixed cylinder is rotatably connected to a push block, and the outer surface of each push block is in sliding contact with the inside of the lower mold.

[0008] Preferably, the working table and the movable plate are both rotatably connected with worms inside, and the outer surface of each worm is meshed with a worm wheel.

[0009] Preferably, the upper surface or the bottom surface of each of the worm wheels is fixedly connected to a bevel gear 1, and the outer surface of each of the bevel gears 1 is meshed with four bevel gears 2.

[0010] Preferably, a side surface of each of the bevel gears 2 away from the bevel gear 1 is fixedly connected with a threaded rod 2, and an outer surface of each of the threaded rods 2 is rotatably connected to the inside of the corresponding workbench and movable plate.

[0011] Preferably, the upper surface of the workbench is provided with four sliding grooves 1, and the bottom surface of the movable plate is provided with four sliding grooves 2.

[0012] Preferably, the inner wall of each sliding groove 1 is slidably connected with four sliding blocks 1, the interior of each sliding block 1 is threadedly connected to the outer surface of the corresponding threaded rod 2, and the outer surface of each sliding block 1 is in contact with the outer surface of the lower mold.

[0013] Preferably, the inner wall of each sliding groove 2 is slidably connected with four sliding blocks 2, the interior of each sliding block 2 is threadedly connected to the outer surface of the corresponding threaded rod 2, and the outer surface of each sliding block 2 is in contact with the outer surface of the upper mold.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, a threaded rod, a fixed cylinder, a push block and other components are arranged, and the upper mold is driven down by a hydraulic cylinder to drive the movable plate to contact with the lower mold to compact and shape the material, and then the fixed cylinder and the push block are driven up by the threaded rod to separate the finished plastic pallet from the lower mold, thereby achieving the effect of facilitating demoulding of the device.

[0016] In the utility model, threaded rod 2, sliding block 1, sliding block 2 and other components are arranged, and the threaded rod 2 drives the corresponding sliding block 1 and sliding block 2 to move, so that the sliding block 1 and sliding block 2 move along the sliding groove 1 and sliding groove 2 until the sliding block 1 and sliding block 2 contact the corresponding upper mold and lower mold, and clamp the upper mold and the lower mold firmly, so as to achieve the effect of the device facilitating the installation and disassembly of the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a demoulding device for producing plastic pallets according to the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a workbench of a demoulding device for producing plastic pallets according to the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of a moving plate of a demoulding device for producing plastic pallets according to the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the internal structure of a fixed cylinder of a demoulding device for producing plastic pallets.

[0021] In the figure: 1. workbench; 2. guide rod; 3. moving plate; 4. hydraulic cylinder; 5. lower mold; 6. upper mold; 7. column gear; 8. motor; 9. toothed belt; 10. threaded rod 1; 11. fixed cylinder; 12. push block; 13. worm; 14. worm wheel; 15. bevel gear 1; 16. bevel gear 2; 17. threaded rod 2; 18. sliding groove 1; 19. sliding groove 2; 20. sliding block 1; 21. sliding block 2. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 4 As shown, a demoulding device for producing plastic pallets includes a workbench 1, four guide rods 2 are fixedly connected to the upper surface of the workbench 1, a hydraulic cylinder 4 is fixedly installed on the upper surface of the workbench 1, a movable plate 3 is fixedly connected to the output end of the hydraulic cylinder 4, the outer surface of each guide rod 2 is slidably connected to the inside of the movable plate 3, the guide rods 2 limit the movement trajectory of the movable plate 4, and improve the stability of the movable plate 3 when it rises or falls.

[0024] See also Figure 1 , Figure 2 , Figure 4, a lower mold 5, an upper mold 6, a toothed belt 9 and a motor 8 are provided below the movable plate (3); four column gears 7 are rotatably connected inside the workbench 1; the outer surface of each column gear 7 is meshed with the inner wall of the toothed belt 9; the output end of the motor 8 is fixedly connected to the bottom surface of the corresponding column gear 7; the upper surface of each column gear 7 is fixedly connected to a threaded rod 10; the motor 8 provides a power source for the push block 12 to lift the finished plastic pallet; the toothed belt 9 meshes with the column gear 7 and drives the four threaded rods 10 to rotate synchronously, so that the four threaded rods 10 keep rotating in the same direction and at the same speed.

[0025] See also Figure 4 The outer surface of each threaded rod 10 is threadedly connected to a fixed cylinder 11, and the upper surface of each fixed cylinder 11 is rotatably connected to a push block 12. The outer surface of each push block 12 is in sliding contact with the interior of the lower mold 5. The fixed cylinder 11 is driven to rise synchronously by the threaded rod 10, and the fixed cylinder 11 is rotatably connected to the push block 12, so that the push block 12 will not rotate with the fixed cylinder 11, thereby preventing the push block 12 from damaging the finished plastic pallet, and the fixed cylinder 11 drives the push block 12 to contact the finished plastic pallet at the same time and lift it up and away from the lower mold 5.

[0026] See also Figure 2 , Figure 3 The workbench 1 and the movable plate (3) are both rotatably connected with a worm 13 inside, and the outer surface of each worm 13 is meshed with a worm wheel 14. The upper surface or bottom surface of each worm wheel 14 is rotatably connected with the corresponding workbench 1 and movable plate 3. Each worm wheel 14 is located at the center of the corresponding workbench 1 or movable plate 3.

[0027] See also Figure 2 , Figure 3 The upper surface or bottom surface of each worm wheel 14 is fixedly connected to a bevel gear 15, and the outer surface of each bevel gear 15 is meshed with four bevel gears 2 16. The bevel gears 15 rotate synchronously through the meshing of the worm 13 and the worm wheel 14, and the worm 13 and the worm wheel 14 have self-locking properties to prevent the bevel gear 15 from reversing.

[0028] See also Figure 2 , Figure 3 A side of each of the bevel gears 16 away from the bevel gear 1 15 is fixedly connected with a threaded rod 17, and the outer surface of each of the threaded rods 17 is rotatably connected to the inside of the corresponding workbench 1 and the movable plate 3. The threaded rods 17 provide support force for the corresponding bevel gears 16 and limit the position of the bevel gears 16 so that the bevel gears 16 can mesh with the bevel gear 1 15.

[0029] See also Figure 2 , Figure 3The upper surface of the workbench (1) is provided with four sliding grooves 18, and the bottom surface of the movable plate 3 is provided with four sliding grooves 19. The sliding grooves 18 and the sliding grooves 19 are distributed in a circular shape with the corresponding centers of the workbench 1 and the movable plate 3, so that the four sliding grooves 18 and the sliding grooves 19 are in a cross shape, and the positions of each sliding groove 18 and the sliding groove 2 19 correspond to each other.

[0030] See also Figure 2 , Figure 3 The inner wall of each sliding groove 18 is slidably connected with four sliding blocks 20. The interior of each sliding block 20 is threadedly connected with the outer surface of the corresponding threaded rod 17. The outer surface of each sliding block 20 contacts the outer surface of the lower mold (5). The sliding groove 18 limits the movement trajectory of the corresponding sliding block 20, improves the stability of the movement of the sliding block 20, and makes the sliding block 20 clamp the lower mold 5 more firmly.

[0031] See also Figure 2 , Figure 3 The inner wall of each sliding groove 19 is slidably connected with four sliding blocks 21, and the interior of each sliding block 21 is threadedly connected with the outer surface of the corresponding threaded rod 17, and the outer surface of each sliding block 21 contacts the outer surface of the upper mold 6. The sliding groove 19 limits the movement trajectory of the corresponding sliding block 21, provides support force for the sliding block 21, enables the sliding block 21 to clamp the upper mold 6 and provide support force for the upper mold 6, so that the upper mold 6 can move synchronously with the moving plate 3.

[0032] When using the utility model: each worm 13 is meshed with the corresponding worm wheel 14 and drives the corresponding bevel gear 15 to rotate, and at the same time, the bevel gear 15 is meshed with the corresponding bevel gear 2 16 and drives the corresponding threaded rod 2 17 to rotate, and the corresponding sliding block 1 20 and sliding block 2 21 are driven to move through the threaded rod 2 17, so that the sliding block 1 20 and sliding block 2 21 are in contact with the corresponding upper mold 6 and lower mold 5 until they are firmly clamped, and the hydraulic cylinder 4 drives the movable plate 3 to drive the upper mold 6 to descend until the upper mold 6 enters the lower mold 5 and compacts the material, and then the hydraulic cylinder 4 drives the movable plate 3 and the upper mold 6 to rise, and the motor 8 drives the corresponding column gear 7 to rotate and mesh with the toothed belt 9, and the toothed belt 9 meshes with the other three column gears 7, so that the four threaded rods 10 rotate synchronously, and the threaded rod 10 drives the fixed cylinder 11 and the push block 12 to rise, so that the finished plastic pallet is separated from the lower mold 5.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A demoulding device for producing plastic pallets, characterized in that: The invention comprises a workbench (1), wherein the upper surface of the workbench (1) is fixedly connected to four guide rods (2), the upper surface of the workbench (1) is fixedly installed with a hydraulic cylinder (4), the output end of the hydraulic cylinder (4) is fixedly connected to a movable plate (3), the outer surface of each guide rod (2) is slidably connected to the inside of the movable plate (3), a lower mold (5), an upper mold (6), a toothed belt (9) and a motor (8) are arranged below the movable plate (3), and the inside of the workbench (1) is rotatably connected to four column gears (7 ), the outer surface of each of the column gears (7) is meshed with the inner wall of the toothed belt (9), the output end of the motor (8) is fixedly connected to the bottom surface of the corresponding column gear (7), the upper surface of each of the column gears (7) is fixedly connected to a threaded rod (10), the outer surface of each of the threaded rods (10) is threadedly connected to a fixed cylinder (11), the upper surface of each of the fixed cylinders (11) is rotatably connected to a push block (12), and the outer surface of each of the push blocks (12) is in sliding contact with the interior of the lower mold (5).

2. A demoulding device for producing plastic pallets according to claim 1, characterized in that: The working table (1) and the moving plate (3) are both rotatably connected with worms (13) inside, and the outer surface of each worm (13) is meshed with a worm wheel (14).

3. A demoulding device for producing plastic pallets according to claim 2, characterized in that: The upper surface or the bottom surface of each worm wheel (14) is fixedly connected to a bevel gear 1 (15), and the outer surface of each bevel gear 1 (15) is meshed with four bevel gears 2 (16).

4. A demoulding device for producing plastic pallets according to claim 3, characterized in that: A side surface of each of the bevel gears 2 (16) away from the bevel gear 1 (15) is fixedly connected to a threaded rod 2 (17), and an outer surface of each of the threaded rods 2 (17) is rotatably connected to the inside of the corresponding workbench (1) and the movable plate (3).

5. A demoulding device for producing plastic pallets according to claim 1, characterized in that: The upper surface of the workbench (1) is provided with four sliding grooves 1 (18), and the bottom surface of the movable plate (3) is provided with four sliding grooves 2 (19).

6. A demoulding device for producing plastic pallets according to claim 5, characterized in that: The inner wall of each sliding groove (18) is slidably connected to four sliding blocks (20), the interior of each sliding block (20) is threadedly connected to the outer surface of the corresponding threaded rod (17), and the outer surface of each sliding block (20) is in contact with the outer surface of the lower mold (5).

7. A demoulding device for producing plastic pallets according to claim 5, characterized in that: The inner wall of each sliding groove (19) is slidably connected to four sliding blocks (21), the interior of each sliding block (21) is threadedly connected to the outer surface of the corresponding threaded rod (17), and the outer surface of each sliding block (21) is in contact with the outer surface of the upper mold (6).

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