Environment-friendly plastic injection molding machine

Abstract

The application belongs to the technical field of injection molding machines, and discloses an environment-friendly plastic injection molding machine, which comprises a water tank, a gas cylinder, an extension shaft, a moving plate, a workbench, an upper mold, a lower mold, a supporting plate, a base, a top plate and a feed main pipe. A plurality of annular grooves are formed in the bottom surface of the moving plate, and the plurality of annular grooves are in one-to-one correspondence with the upper mold. A sliding groove is formed in the inner top wall of each of the plurality of annular grooves. A cleaning assembly for cleaning the upper mold is arranged on the moving plate. The application has the effect of improving the use experience of the staff.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to an environmentally friendly plastic injection molding machine. Background Technology

[0002] Environmentally friendly plastics, also known as green plastics, refer to plastic products that are harmless to humans and the environment. Injection molding is a method of industrial product manufacturing. Products are typically produced using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting. An injection mold is a tool used to produce plastic products, giving them a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it refers to injecting molten plastic under high pressure into a mold cavity using an injection molding machine, followed by cooling and solidification to obtain the molded product. Injection molds are used in the production of disposable teacup liners.

[0003] Chinese utility model patent CN221292103U discloses an injection mold with a cooling mechanism, including a water tank, a movable plate, a worktable, an upper mold, a lower mold, and a support plate. First, a cylinder is activated to drive a telescopic shaft downwards, which in turn drives the movable plate downwards, which in turn drives the upper mold downwards. Then, a first water pump is activated to send water from the water tank into the cooling chamber through an inlet pipe. The upper and lower molds then align, and material is fed into the lower mold through a main feed pipe and feed branch pipes for injection molding, forming a disposable teacup inner sleeve. The cooling bottle absorbs heat from the inside of the product, while the cooling chamber absorbs heat from the outside, thus enhancing the cooling effect and enabling rapid molding. Finally, a second water pump is activated to draw hot water from the cooling chamber through a second absorption pipe and discharge it into the water tank through a second outlet pipe. At the top of the water tank, a cooling fan and vents rapidly dissipate heat, cooling the hot water and achieving water recycling.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: The device shapes disposable cups by moving the upper mold downwards to squeeze the injection liquid. In actual use, after the upper mold resets, some of the shaped disposable cups tend to stick to it. At this point, workers need to stop the machine and manually clean the upper mold, resulting in a poor user experience and hindering work efficiency. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an environmentally friendly plastic injection molding machine.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an environmentally friendly plastic injection molding machine, including a water tank, a cylinder, a telescopic shaft, a moving plate, a worktable, an upper mold, a lower mold, a support plate, a base, a top plate, and a feed manifold. The bottom surface of the moving plate is provided with multiple annular grooves, each of which corresponds to one of the upper molds. The inner top wall of each of the multiple annular grooves is provided with a sliding groove. The moving plate is provided with a cleaning component for cleaning the upper mold.

[0007] By adopting the above technical solution, when workers need to produce disposable teacup inner sleeves, they need to inject molding liquid into the lower mold through the feed manifold and activate the cylinder to drive the upper mold to move downwards. This allows the upper and lower molds to work together to shape the molding liquid. After shaping, the workers need to activate the cylinder again to move the upper mold slightly upwards, leaving a gap between the upper and lower molds. If some of the shaped disposable teacup inner sleeves adhere to the upper mold, the workers only need to activate the cleaning component to move the ring block downwards and clean the disposable teacup inner sleeves from the upper mold. This causes the adhered disposable teacup inner sleeves to fall downwards and return to the lower mold, thus reducing the difficulty of operation for the workers.

[0008] Furthermore, the cleaning assembly includes an annular block slidably disposed within an annular groove, a sliding rod slidably disposed within a sliding groove, and a driving device disposed on a moving plate for driving the annular block.

[0009] By adopting the above technical solution, after injection molding, sometimes the molded disposable teacup inner sleeve may adhere to the upper mold. At this point, the operator needs to activate the cylinder to slightly move the upper mold upwards, creating a gap between the upper and lower molds. Then, the operator needs to activate the drive device, which moves the sliding rod downwards, causing the annular block to move downwards. This annular block cleans the disposable teacup inner sleeve adhering to the upper mold, allowing the inner sleeve to move downwards and return to the lower mold under the action of the annular block, thus reducing the operator's difficulty in operation.

[0010] Furthermore, the side wall of the movable plate is provided with a movable groove that is interconnected with multiple sliding grooves. The driving device includes a movable rod slidably disposed in the movable groove, multiple movable blocks fixed to the bottom surface of the movable rod, and multiple tension springs with one end fixed to the top wall of the multiple sliding grooves respectively. The other end of the multiple tension springs is fixed to the upper surface of the multiple sliding rods respectively. A placement groove is provided through the side wall of the sliding rod near the opening of the movable groove. An inclined surface is provided on the edge where the inner bottom wall of the placement groove intersects with the side wall of the sliding rod near the opening of the movable groove. The movable blocks correspond one-to-one with the sliding rods. Multiple receiving grooves for accommodating the movable blocks are provided on the inner bottom wall of the movable groove.

[0011] By adopting the above technical solution, when the operator needs to drive the ring block, the operator needs to slide the moving rod, so that multiple moving blocks can move with the moving rod, thereby making multiple moving blocks press against multiple inclined surfaces respectively, and then making multiple sliding rods move downward in sequence under the action of multiple moving blocks, so that multiple ring blocks move downward simultaneously.

[0012] Furthermore, a compression spring is fixed to the inner wall of the moving groove, and the other end of the compression spring is fixed to the side wall of the moving rod.

[0013] By adopting the above technical solution, when the worker presses the moving rod, the compression spring continues to compress. At this time, the worker only needs to release the moving rod, and the moving rod will quickly return to its original position under the action of the compression spring, thereby reducing the difficulty of operation for the worker.

[0014] Furthermore, an indicator block for indicating the distance the moving rod moves is fixed on the side wall away from the compression spring.

[0015] Furthermore, a rubber sheet is fixed to the side wall of the indicator block near the compression spring.

[0016] Furthermore, a shock-absorbing pad is fixed on the side wall of the indicator block away from the compression spring.

[0017] By adopting the above technical solution, when the operator presses the moving rod, the indicator block moves with the moving rod, causing the rubber sheet to move with the moving rod and press against the side wall of the moving plate. This allows the annular block to move precisely to its farthest point under the action of the moving rod, thus reducing the operator's difficulty in operation. Furthermore, the shock-absorbing pad reduces the pain experienced by the operator when pressing the moving rod, thereby improving the operator's user experience.

[0018] Furthermore, a silicone ring is fixed to the bottom surface of the annular block.

[0019] By adopting the above technical solution, the silicone ring reduces the probability of damage to the inner sleeve of the disposable teacup when the ring block is pressed against it, thereby improving the user experience of the device.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this application, when workers need to produce disposable teacup inner sleeves, they need to inject molding liquid into the lower mold through the feed manifold and activate the cylinder to drive the upper mold to move downwards, thereby allowing the upper and lower molds to cooperate in shaping the molding liquid. After shaping, workers need to activate the cylinder again to move the upper mold slightly upwards, leaving a certain gap between the upper and lower molds. If some of the shaped disposable teacup inner sleeves adhere to the upper mold at this time, workers only need to activate the cleaning component to move the ring block downwards and clean the disposable teacup inner sleeves on the upper mold, causing the adhered disposable teacup inner sleeves to fall downwards and return to the lower mold, thus reducing the difficulty of operation for workers;

[0022] 2. In this application, after injection molding is completed, sometimes the molded disposable teacup inner sleeve may adhere to the upper mold. At this time, the operator needs to activate the cylinder to move the upper mold slightly upwards, creating a gap between the upper and lower molds. Then, the operator needs to activate the drive device, which moves the sliding rod downwards, causing the annular block to move downwards. This annular block cleans the disposable teacup inner sleeve adhering to the upper mold, allowing the inner sleeve to move downwards and return to the lower mold under the action of the annular block, thus reducing the operator's difficulty in operation.

[0023] 3. In this application, when the operator needs to drive the ring block, the operator needs to slide the moving rod, so that multiple moving blocks can move with the moving rod, thereby causing multiple moving blocks to press against multiple inclined surfaces respectively, and then causing multiple sliding rods to move downward in sequence under the action of multiple moving blocks, thereby causing multiple ring blocks to move downward simultaneously. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the upper mold and its connection structure according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the receiving groove and its connection structure according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the cleaning component and its connection structure according to an embodiment of the present invention.

[0028] In the diagram: 1. Water tank; 11. Cylinder; 2. Telescopic shaft; 21. Moving plate; 3. Workbench; 31. Upper mold; 4. Lower mold; 41. Support plate; 5. Base; 51. Feed manifold; 52. Top plate; 6. Annular groove; 61. Sliding groove; 7. Cleaning assembly; 71. Annular block; 72. Sliding rod; 73. Moving groove; 8. Drive device; 81. Moving rod; 82. Moving block; 83. Tension spring; 84. Placement groove; 841. Receiving groove; 85. Compression spring; 86. Indicator block; 87. Rubber sheet; 88. Shock absorber; 9. Silicone ring. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-4 As shown in the embodiment of this application, an environmentally friendly plastic injection molding machine is disclosed, including a water tank 1, a cylinder 11, a telescopic shaft 2, a moving plate 21, a worktable 3, an upper mold 31, a lower mold 4, a support plate 41, a base 5, a feed manifold 51, a top plate 52, a cleaning assembly 7, a compression spring 85, an indicator block 86, a rubber sheet 87, and a shock-absorbing pad 88. The cylinder 11 is installed on the bottom surface of the top plate 52, and the telescopic shaft 2 is connected to the piston rod of the cylinder 11. The moving plate 21 is connected to the end of the telescopic shaft 2, and multiple lower molds 4 are arranged sequentially on the bottom surface of the moving plate 21.

[0031] The bottom surface of the movable plate 21 has multiple annular grooves 6, each corresponding to an upper mold 31, and each annular groove 6 has a sliding groove 61 on its inner top wall. A cleaning assembly 7 is mounted on the movable plate 21 and is used to clean the upper mold 31. The cleaning assembly 7 includes an annular block 71, a sliding rod 72, and a driving device 8. The annular block 71 is a block-shaped structure with a circular cross-section and is slidably disposed within the annular groove 6. The sliding rod 72 is a rectangular rod-shaped structure and is slidably disposed within the sliding groove 61.

[0032] After injection molding is completed, sometimes the molded disposable teacup inner sleeve may adhere to the upper mold 31. At this time, the operator needs to activate cylinder 11 to move the upper mold 31 slightly upwards, creating a gap between the upper mold 31 and the lower mold 4. Then, the operator needs to activate drive device 8, which moves sliding rod 72 downwards, causing the annular block 71 to move downwards. This annular block 71 cleans the disposable teacup inner sleeve adhering to the upper mold 31, allowing the inner sleeve to move downwards and return to the lower mold 4 under the action of the annular block 71, thus reducing the operator's difficulty in operation.

[0033] The side wall of the movable plate 21 has a movable groove 73 that communicates with multiple sliding grooves 61. A driving device 8 is mounted on the movable plate 21 and is used to drive the annular block 71. The driving device 8 includes a movable rod 81, a movable block 82, and a tension spring 83. The movable rod 81 is a rectangular rod structure and is slidably disposed in the movable groove 73. The movable block 82 is a rectangular block structure, and multiple movable blocks 82 are provided and fixed sequentially on the bottom surface of the movable rod 81. Multiple tension springs 83 are provided, and one end of each tension spring 83 is fixed to the inner top wall of multiple sliding grooves 61, while the other end of each tension spring 83 is fixed to the upper surface of multiple sliding rods 72. A placement groove 84 is provided through the side wall of the sliding rod 72 near the opening of the movable groove 73. An inclined surface is provided on the edge where the inner bottom wall of the placement groove 84 intersects with the side wall of the sliding rod 72 near the opening of the movable groove 73. The movable block 82 corresponds one-to-one with the sliding rod 72, and the inner bottom wall of the movable groove 73 is provided with multiple receiving grooves 841 for accommodating the movable block 82.

[0034] When the operator needs to drive the ring block 71, the operator needs to slide the moving rod 81, which will cause multiple moving blocks 82 to move with the moving rod 81. This will cause multiple moving blocks 82 to press against multiple inclined surfaces respectively, and then cause multiple sliding rods 72 to move downward in sequence under the action of multiple moving blocks 82, thereby causing multiple ring blocks 71 to move downward simultaneously.

[0035] One end of the compression spring 85 is fixed to the inner wall of the moving groove 73, and the other end of the compression spring 85 is fixed to the side wall of the moving rod 81. When the operator presses the moving rod 81, the compression spring 85 continues to compress. At this time, the operator only needs to release the moving rod 81, which will allow the moving rod 81 to quickly return to its original position under the action of the compression spring 85, thereby reducing the difficulty of operation for the operator.

[0036] The indicator block 86 is a block-shaped structure and is fixed to the side wall of the moving rod 81 away from the compression spring 85, used to indicate the moving distance of the moving rod 81. The rubber sheet 87 is a sheet-shaped structure and is fixed to the side wall of the indicator block 86 near the compression spring 85, and the shock-absorbing pad 88 is fixed to the side wall of the indicator block 86 away from the compression spring 85.

[0037] When the operator presses the moving rod 81, the indicator block 86 moves with the moving rod 81, causing the rubber sheet 87 to move with the moving rod 81 and press against the side wall of the moving plate 21. This allows the annular block 71 to move to its furthest point under the action of the moving rod 81, thus reducing the operator's difficulty in operation. Furthermore, the shock-absorbing pad 88 reduces the pain experienced by the operator when pressing the moving rod 81, thereby improving the user experience.

[0038] The silicone ring 9 is a block structure with a circular cross-section, and it is fixed to the bottom surface of the ring block 71. The silicone ring 9 reduces the probability of damage to the disposable teacup inner sleeve when the ring block 71 is pressed against it, thereby improving the user experience of the device.

[0039] The operating principle of the environmentally friendly plastic injection molding machine in this embodiment is as follows: When the operator needs to produce disposable teacup inner sleeves, the operator injects injection liquid into the lower mold 4 through the feed manifold 51 and activates the cylinder 11, which drives the upper mold 31 to move downward, allowing the upper mold 31 and the lower mold 4 to cooperate in shaping the injection liquid. After shaping, the operator needs to activate the cylinder 11 again, causing the upper mold 31 to move slightly upward, leaving a certain gap between the upper mold 31 and the lower mold 4. If some of the shaped disposable teacup inner sleeves adhere to the upper mold 31 at this time, the operator only needs to activate the cleaning component 7, which moves the annular block 71 downward and cleans the disposable teacup inner sleeves on the upper mold 31, causing the adhered disposable teacup inner sleeves to fall downward and return to the lower mold 4, thereby reducing the operator's operational difficulty.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An environmentally friendly plastic injection molding machine, comprising a water tank (1), a cylinder (11), a telescopic shaft (2), a moving plate (21), a worktable (3), an upper mold (31), a lower mold (4), a support plate (41), a base (5), a top plate (52), and a feed manifold (51), characterized in that: The bottom surface of the movable plate (21) is provided with a plurality of annular grooves (6), each of the plurality of annular grooves (6) corresponding to the upper mold (31). Each of the plurality of annular grooves (6) is provided with a sliding groove (61) on its inner top wall. The movable plate (21) is provided with a cleaning component (7) for cleaning the upper mold (31).

2. The environmentally friendly plastic injection molding machine according to claim 1, characterized in that: The cleaning assembly (7) includes an annular block (71) slidably disposed in an annular groove (6), a sliding rod (72) slidably disposed in a sliding groove (61), and a driving device (8) disposed on a moving plate (21) for driving the annular block (71).

3. The environmentally friendly plastic injection molding machine according to claim 2, characterized in that: The side wall of the movable plate (21) is provided with a movable groove (73) that is interconnected with multiple sliding grooves (61). The driving device (8) includes a movable rod (81) slidably disposed in the movable groove (73), multiple movable blocks (82) fixed on the bottom surface of the movable rod (81), and multiple tension springs (83) with one end fixed on the top wall of the multiple sliding grooves (61). The other end of the multiple tension springs (83) is fixed on the upper surface of the multiple sliding rods (72). A placement groove (84) is provided through the side wall of the sliding rod (72) near the opening of the movable groove (73). An inclined surface is provided on the edge where the inner bottom wall of the placement groove (84) intersects with the side wall of the sliding rod (72) near the opening of the movable groove (73). The movable blocks (82) correspond one-to-one with the sliding rods (72). Multiple receiving grooves (841) for accommodating the movable blocks (82) are provided on the inner bottom wall of the movable groove (73).

4. An environmentally friendly plastic injection molding machine according to claim 3, characterized in that: A compression spring (85) is fixed on the inner wall of the moving groove (73), and the other end of the compression spring (85) is fixed on the side wall of the moving rod (81).

5. An environmentally friendly plastic injection molding machine according to claim 4, characterized in that: An indicator block (86) for indicating the moving distance of the moving rod (81) is fixed on the side wall away from the compression spring (85).

6. An environmentally friendly plastic injection molding machine according to claim 5, characterized in that: A rubber sheet (87) is fixed to the side wall of the indicator block (86) near the compression spring (85).

7. An environmentally friendly plastic injection molding machine according to claim 6, characterized in that: A shock-absorbing pad (88) is fixed on the side wall of the indicator block (86) away from the compression spring (85).

8. An environmentally friendly plastic injection molding machine according to claim 7, characterized in that: A silicone ring (9) is fixed to the bottom surface of the annular block (71).

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