Injection molding equipment for plastic tray production

Abstract

The invention relates to the technical field of plastic tray production, in particular to injection molding equipment for plastic tray production, which comprises a processing table, a fixed seat fixedly connected to the processing table, an injection molding device mounted on the fixed seat, an insulation board slidably and cooperatively arranged on the fixed seat, and a rotating frame rotatably connected to the fixed seat in a penetrating manner. A plurality of fixing frames are fixedly connected to the rotating frame in an annular structure mode, adjusting mechanisms are rotatably connected to the fixing frames, forming mechanisms are arranged on the fixing frames in a sliding fit mode, a conveying frame is fixedly connected to the bottom of the machining table, and plastic trays are arranged in the forming mechanisms; the multiple forming mechanisms are arranged, and the rotating frame rotating intermittently is used for alternately conducting injection molding, cooling and taking-out operation, so that the production efficiency can be greatly improved, the waiting time is shortened, the energy consumption is reduced, the automation level is improved, and the product quality consistency is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pallet production, and in particular to an injection molding device for producing plastic pallets. Background Art

[0002] Plastic pallets are a flat platform used for handling, storing and transporting goods, usually made of plastic materials such as polypropylene, polyethylene, polyvinyl chloride, etc. Compared with wooden or metal pallets, plastic pallets have many advantages and are widely used in logistics, warehousing, distribution and other fields.

[0003] Injection molding is one of the common manufacturing processes in the production of plastic pallets. It is particularly suitable for mass production and can efficiently and accurately produce plastic pallets that meet the requirements. This process injects heated molten plastic material into a mold, cools it and forms it according to the shape of the mold, and finally obtains a plastic product with a specific shape and size.

[0004] However, in the production process of an existing plastic pallet injection molding machine, the product can only be taken out and the next injection molding can be performed after the injection molding is completed in the mold and the plastic is completely cooled and solidified. This process prolongs the production cycle and reduces the overall production efficiency.

[0005] In summary, the prior art lacks a multi-mold continuous injection molding technology for injection molding of plastic pallets. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an injection molding device for producing plastic pallets.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: an injection molding equipment for the production of plastic pallets, including a processing table, a fixed seat is fixedly connected to the processing table, an injection molding equipment is installed on the fixed seat, an insulation plate is slidably provided on the fixed seat, a rotating frame is rotatably connected to the fixed seat, a plurality of fixed frames are connected and fixed in an annular structure on the rotating frame, an adjustment mechanism is rotatably provided on the fixed frame, a molding mechanism is slidably provided on the fixed frame, a conveying frame is fixedly connected to the bottom of the processing table, and a plastic pallet is arranged in the molding mechanism.

[0008] Preferably, electric heating wires are installed on the inner walls on both sides of the insulation board, one end of the insulation board is arranged in sliding contact with the rotating frame, one end of the insulation board is connected and fixedly provided with a hydraulic cylinder, the hydraulic cylinder is connected and fixedly provided with the processing table, and a transmission rack is connected and fixedly provided on the insulation board.

[0009] Preferably, a transmission gear disk is fixedly connected to the bottom end of the rotating frame, a universal joint A is fixedly connected to the top end of the rotating frame, the other end of the universal joint A is rotatably connected to the fixed seat, a rotating wheel is fixedly connected to the universal joint A, a plurality of transmission teeth are rotatably connected to the rotating wheel in an annular structure, a spring is fixedly connected between the transmission teeth and the rotating wheel, a toothed sleeve is rotatably provided on the outer wall of the rotating wheel, the inner wall of the toothed sleeve is movably engaged with the transmission teeth for transmission, the toothed sleeve is rotatably connected to the fixed seat, an adjusting wheel is fixedly connected to one end of the toothed sleeve, and the adjusting wheel is engaged with the transmission rack for transmission.

[0010] Preferably, the adjusting mechanism includes a transmission wheel, which is rotatably connected to a fixed frame, one end of the transmission wheel is connected and fixedly provided with an incomplete bevel gear, one side of the incomplete bevel gear is provided with a worm, the worm is rotatably connected to the fixed frame, both ends of the worm are connected and fixedly provided with bevel gears, and the bevel gear is movably meshed with the incomplete bevel gear for transmission.

[0011] Preferably, a worm wheel is meshingly provided on one side of the worm, the worm wheel is rotatably connected to a fixed frame, and a U-shaped rod is fixedly connected to the worm wheel.

[0012] Preferably, the molding mechanism includes two sliding frames, the sliding frames are slidably matched with the fixed frames, one end of the sliding frame is connected and fixedly provided with a slotted frame, the inner wall of the slotted frame is slidably matched with the outer wall of the U-shaped rod, the two sliding frames are respectively connected and fixedly provided with molds, and one of the molds is connected and fixedly provided with an injection tube at the top.

[0013] Preferably, two blanking push rods are connected and fixedly provided at both ends of one side of the fixing frame in an up-and-down symmetrical structure, and one end of the blanking push rod is slidably fitted through the inner wall of the mold.

[0014] Preferably, an arc-shaped rack is fixedly connected to the processing table, and the arc-shaped rack is meshed with a transmission wheel for transmission. A material guide trough is fixedly connected to and penetrated from one side of the arc-shaped rack of the processing table.

[0015] Preferably, a conveyor belt is rotatably connected inside the conveying frame, a universal joint B is rotatably connected to the outer wall of one side of the conveying frame, one end of the universal joint B is connected and fixedly provided with a driving wheel, the driving wheel is meshed with a transmission gear plate for transmission, and the other end of the universal joint B is connected and fixedly provided with a pulley inside one side of the conveyor belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up multiple molding mechanisms and using intermittent rotating rotating racks to alternately perform injection molding, cooling and removal operations, it can greatly improve production efficiency, reduce waiting time, reduce energy consumption, improve automation level, and ensure product quality consistency;

[0018] 2. By setting up the adjustment mechanism, when the molding mechanism rotates to the top of the guide trough, the U-shaped rod can be rotated under the action of the arc-shaped rack, so that the automatic opening and closing of the mold and the automatic unloading of the plastic pallet can be realized, thereby significantly improving the automation level and production efficiency of the plastic pallet production line, not only reducing the need for manual operation, but also improving the stability and safety of the production process;

[0019] 3. By setting up the insulation board, the molding structure to be injected can be protected during injection molding, maintaining a stable temperature and avoiding material quality problems caused by temperature changes. At the same time, by setting a transmission rack on the insulation board, the rotating frame can be driven to rotate in the gap while it is moved up and opened, thereby realizing the linkage of the device. At the same time, by setting a transmission gear disc on the rotating frame, the conveyor belt can be automatically driven to rotate, and the plastic pallet is fed, thereby improving production efficiency and reducing manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an injection molding device for producing a plastic pallet according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of an insulation board of an injection molding device for producing a plastic pallet according to the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a rotating frame of an injection molding device for producing a plastic pallet according to the present invention;

[0023] Figure 4 The present invention is a plastic pallet production injection molding equipment Figure 3 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of an adjustment mechanism of an injection molding device for producing a plastic pallet according to the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of a fixed frame and a molding mechanism of an injection molding device for producing a plastic pallet according to the present invention;

[0026] Figure 7 This is a schematic diagram of the processing table structure of an injection molding device for producing a plastic pallet according to the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of a conveyor frame of an injection molding device for producing plastic pallets of the present invention.

[0028] The following are marked in the figure: 1, processing table; 2, fixed seat; 3, injection molding equipment; 4, insulation board; 5, rotating frame; 6, fixed frame; 7, adjustment mechanism; 8, molding mechanism; 9, conveying frame; 10, plastic pallet; 401, electric heating wire; 402, hydraulic cylinder; 403, transmission rack; 501, transmission gear plate; 502, universal joint A; 503, rotating wheel; 504, transmission gear; 505, spring; 506, Toothed sleeve; 507, adjusting wheel; 701, transmission wheel; 702, incomplete bevel gear; 703, worm; 704, bevel gear; 705, worm wheel; 706, U-shaped rod; 801, sliding frame; 802, slotting frame; 803, mold; 804, injection pipe; 601, unloading push rod; 101, arc-shaped rack; 102, guide trough; 901, conveyor belt; 902, universal joint B; 903, driving wheel. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] like Figure 1-Figure 8 The injection molding equipment for producing plastic pallets shown in the figure includes a processing table 1, a fixed seat 2 is connected and fixedly arranged on the processing table 1, an injection molding equipment 3 is installed on the fixed seat 2, an insulation board 4 is slidably arranged on the fixed seat 2, a rotating frame 5 is rotatably connected to the fixed seat 2, a plurality of fixed frames 6 are connected and fixedly arranged in an annular structure on the rotating frame 5, an adjustment mechanism 7 is rotatably arranged on the fixed frame 6, a molding mechanism 8 is slidably arranged on the fixed frame 6, a conveying frame 9 is fixedly arranged on the bottom of the processing table 1, and a plastic pallet 10 is arranged in the molding mechanism 8.

[0031] like Figure 2 As shown, electric heating wires 401 are installed on the inner walls of both sides of the insulation board 4, one end of the insulation board 4 is in sliding contact with the rotating frame 5, one end of the insulation board 4 is connected and fixedly provided with a hydraulic cylinder 402, the hydraulic cylinder 402 is connected and fixedly provided with the processing table 1, and a transmission rack 403 is connected and fixedly provided on the insulation board 4. The electric heating wires 401 can heat and keep the molding mechanism 8 to be injected.

[0032] like Figure 3 , Figure 4As shown, a transmission gear disc 501 is connected and fixedly arranged at the bottom of the rotating frame 5, a universal joint A502 is connected and fixedly arranged at the top of the rotating frame 5, the other end of the universal joint A502 is rotatably connected and arranged with the fixed seat 2, a rotating wheel 503 is connected and fixedly arranged on the universal joint A502, a plurality of transmission teeth 504 are rotatably connected and arranged on the rotating wheel 503 in an annular structure, a spring 505 is connected and fixedly arranged between the transmission teeth 504 and the rotating wheel 503, a tooth groove sleeve 506 is rotatably arranged on the outer wall of the rotating wheel 503, the inner wall of the tooth groove sleeve 506 is movably meshed and arranged for transmission, the tooth groove sleeve 506 is rotatably connected and arranged with the fixed seat 2, an adjusting wheel 507 is connected and fixedly arranged at one end of the tooth groove sleeve 506, and the adjusting wheel 507 is meshed and arranged for transmission with the transmission rack 403. The spring 505 realizes the unidirectional transmission of the transmission teeth 504.

[0033] like Figure 5 As shown, the adjustment mechanism 7 includes a transmission wheel 701, which is rotatably connected to the fixed frame 6, one end of the transmission wheel 701 is connected and fixedly provided with an incomplete bevel gear 702, one side of the incomplete bevel gear 702 is provided with a worm 703, the worm 703 is rotatably connected to the fixed frame 6, both ends of the worm 703 are connected and fixedly provided with bevel gears 704, and the bevel gear 704 is movably meshed with the incomplete bevel gear 702 for transmission.

[0034] A worm wheel 705 is meshingly provided on one side of the worm 703 . The worm wheel 705 is rotatably connected to the fixing frame 6 . A U-shaped rod 706 is fixedly connected to the worm wheel 705 .

[0035] like Figure 6 As shown, the molding mechanism 8 includes two sliding frames 801, and the sliding frames 801 are slidably matched with the fixed frame 6. One end of the sliding frame 801 is connected and fixedly provided with a slotted frame 802. The inner wall of the slotted frame 802 is slidably matched with the outer wall of the U-shaped rod 706. The two sliding frames 801 are respectively connected and fixedly provided with molds 803, and one of the molds 803 is connected and fixedly provided with an injection tube 804 at the top.

[0036] like Figure 6 As shown, two ends of one side of the fixing frame 6 are connected and fixedly provided with two blanking push rods 601 in a vertically symmetrical structure, and one end of the blanking push rod 601 is slidably matched with the inner wall of the mold 803. The blanking push rod 601 can prevent the plastic pallet 10 from sticking to the mold 803.

[0037] like Figure 7 As shown, the processing table 1 is connected and fixed with an arc-shaped rack 101, which is meshed with the transmission wheel 701 for transmission, and the processing table 1 is located on one side of the arc-shaped rack 101 and is connected and fixed with a guide groove 102. One side of the guide groove 102 is open, which is convenient for laying the plastic pallet 10 flat.

[0038] like Figure 8 As shown, a conveyor belt 901 is rotatably connected inside the conveyor frame 9, a universal joint B902 is rotatably connected to the outer wall of one side of the conveyor frame 9, one end of the universal joint B902 is connected and fixedly provided with a driving wheel 903, the driving wheel 903 is meshed with the transmission gear plate 501 for transmission, and the other end of the universal joint B902 is connected and fixedly provided with a pulley inside one side of the conveyor belt 901.

[0039] Working principle: When the plastic pallet 10 needs to be injection molded, firstly, the injection molding device 3 is used to inject a proper amount of fluid plastic into the mold 803 through the injection pipe 804 below, and then the hydraulic cylinder 402 is used to drive the insulation board 4 to move upward, and then when the insulation board 4 moves upward, the connected transmission rack 403 will drive the adjusting wheel 507 to rotate;

[0040] Then the adjusting wheel 507 will drive the connected toothed sleeve 506 to rotate, and at this time the toothed sleeve 506 will mesh with the transmission gear 504, thereby driving the rotating wheel 503 to rotate, so that the rotating wheel 503 drives the rotating frame 5 connected to the universal joint A502 to rotate, so that the rotating frame 5 can rotate the molded molding mechanism 8 to one side after injection molding, so that the empty molding mechanism 8 is rotated to the bottom of the injection molding device 3 for injection molding;

[0041] Then, when the molding mechanism 8 after injection molding rotates to the top of the guide groove 102, the driving wheel 701 is rotated under the action of the arc-shaped rack 101, so that the driving wheel 701 drives the connected incomplete bevel gear 702 to rotate, so that the incomplete bevel gear 702 first meshes with one of the bevel gears 704, thereby driving it to rotate, and then drives the worm 703 to rotate, so that the worm 703 drives the U-shaped rod 706 connected to the worm wheel 705 to rotate, so that the two ends of the U-shaped rod 706 slide in the slotted frame 802, thereby driving the mold 803 connected to the sliding frame 801 to open, and at this time, under the action of the fixed unloading push rod 601, the plastic pallet 10 can be prevented from sticking in the mold 803;

[0042] Then the plastic tray 10 will fall down and fall onto the conveyor belt 901 through the guide trough 102. Then, when the incomplete bevel gear 702 is meshed with another bevel gear 704, the U-shaped rod 706 will be driven to reverse, thereby driving the two molds 803 to close.

[0043] Then, when the rotating frame 5 rotates, it will drive the connected transmission gear plate 501 to rotate, so that the transmission gear plate 501 can drive the driving wheel 903 to rotate, so that the driving wheel 903 drives the pulley connected to the universal joint B902 to rotate, and the pulley drives the conveyor belt 901 to rotate to transport the plastic pallet 10.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An injection molding device for producing plastic pallets, comprising a processing table (1), characterized in that: A fixed seat (2) is connected and fixedly arranged on the processing table (1), an injection molding device (3) is installed on the fixed seat (2), a heat preservation plate (4) is slidably arranged on the fixed seat (2), a rotating frame (5) is rotatably connected and arranged through the fixed seat (2), a plurality of fixed frames (6) are connected and fixedly arranged in an annular structure on the rotating frame (5), an adjustment mechanism (7) is rotatably connected and arranged on the fixed frame (6), a molding mechanism (8) is slidably arranged on the fixed frame (6), a conveying frame (9) is connected and fixedly arranged at the bottom of the processing table (1), and a plastic pallet (10) is arranged in the molding mechanism (8).

2. The injection molding equipment for producing plastic pallets according to claim 1, characterized in that: Electric heating wires (401) are installed on the inner walls of both sides of the insulation plate (4); one end of the insulation plate (4) is arranged in sliding contact with the rotating frame (5); one end of the insulation plate (4) is connected and fixedly provided with a hydraulic cylinder (402); the hydraulic cylinder (402) is connected and fixedly provided with the processing table (1); and a transmission rack (403) is connected and fixedly provided on the insulation plate (4).

3. The injection molding equipment for producing plastic pallets according to claim 2, characterized in that: A transmission gear disc (501) is fixedly connected to the bottom end of the rotating frame (5), a universal joint A (502) is fixedly connected to the top end of the rotating frame (5), the other end of the universal joint A (502) is rotatably connected to the fixed seat (2), a rotating wheel (503) is fixedly connected to the universal joint A (502), a plurality of transmission teeth (504) are rotatably connected to the rotating wheel (503) in an annular structure, and the transmission teeth (504) are connected to the rotating frame (501). A spring (505) is fixedly connected between the wheels (503); a toothed sleeve (506) is rotatably arranged on the outer wall of the rotating wheel (503); the inner wall of the toothed sleeve (506) is movably meshed with the transmission teeth (504) for transmission; the toothed sleeve (506) is rotatably connected to the fixed seat (2); an adjusting wheel (507) is fixedly connected to one end of the toothed sleeve (506); and the adjusting wheel (507) is meshed with the transmission rack (403) for transmission.

4. The injection molding equipment for producing plastic pallets according to claim 1, characterized in that: The adjusting mechanism (7) comprises a transmission wheel (701), the transmission wheel (701) being rotatably connected to a fixed frame (6), one end of the transmission wheel (701) being connected and fixedly provided with an incomplete bevel gear (702), one side of the incomplete bevel gear (702) being provided with a worm (703), the worm (703) being rotatably connected to the fixed frame (6), both ends of the worm (703) being connected and fixedly provided with bevel gears (704), and the bevel gear (704) being movably meshed with the incomplete bevel gear (702) for transmission.

5. The injection molding equipment for producing plastic pallets according to claim 4, characterized in that: A worm wheel (705) is provided on one side of the worm (703) for meshing transmission. The worm wheel (705) is rotatably connected to a fixed frame (6). A U-shaped rod (706) is fixedly connected to the worm wheel (705).

6. The injection molding equipment for producing plastic pallets according to claim 5, characterized in that: The molding mechanism (8) comprises two sliding frames (801), the sliding frames (801) are slidably matched with the fixed frame (6), one end of the sliding frame (801) is connected and fixedly provided with a slotted frame (802), the inner wall of the slotted frame (802) is slidably matched with the outer wall of the U-shaped rod (706), the two sliding frames (801) are respectively connected and fixedly provided with molds (803), and a material injection pipe (804) is connected and fixedly provided at the top end of one of the molds (803).

7. The injection molding equipment for producing plastic pallets according to claim 6, characterized in that: Two ends of one side of the fixing frame (6) are connected and fixedly provided with two material discharge push rods (601) in an up-down symmetrical structure, and one end of the material discharge push rod (601) penetrates the inner wall of the mold (803) and is slidably matched.

8. The injection molding equipment for producing plastic pallets according to claim 4, characterized in that: An arc-shaped rack (101) is fixedly connected to the processing table (1), and the arc-shaped rack (101) is meshed with the transmission wheel (701) for transmission. A material guide trough (102) is fixedly connected and penetrated on one side of the processing table (1) and is fixedly connected to the arc-shaped rack (101).

9. The injection molding equipment for producing plastic pallets according to claim 3, characterized in that: A conveyor belt (901) is rotatably connected inside the conveyor frame (9), a universal joint B (902) is rotatably connected to an outer wall of one side of the conveyor frame (9), one end of the universal joint B (902) is connected and fixedly provided with a driving wheel (903), the driving wheel (903) is meshed with a driving gear disc (501) for transmission, and the other end of the universal joint B (902) is connected and fixedly provided with a pulley inside one side of the conveyor belt (901).

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