Plasticizing apparatus with facilitated gas evacuation

Abstract

The utility model discloses a plasticizing equipment convenient to gas discharge belongs to plasticizing equipment technical field, lower mould inner chamber one side outer surface and upper mould outer surface sliding connection, the inside installation of lower mould can with the ventilation component of inner chamber gas discharge, the ventilation component is installed with the telescopic component of connecting inner chamber in lower mould inner chamber one end, the ventilation component is installed with the limiting component of positioning in middle part position, the ventilation component is installed with the dustproof component of preventing external dust from entering in lower mould inner chamber one end. Through above -mentioned mode, when injecting the melted plastic in lower mould inner chamber, will extrude the air in inner chamber and make the air pressure in inner chamber bigger, and the air pressure will hold the baffle and move to the direction of the inside of the storage rod, and the first spring contracts, thereby the air in inner chamber flows into the ventilation groove, and the air in ventilation groove will be discharged from the outside of lower mould through the hole of movable plate and fixed plate intercommunication, thereby avoids the situation that the inner chamber plastic is not filled completely because of the existence of air.

Description

Technical Field

[0001] This utility model relates to the field of plasticizing equipment technology, specifically to a plasticizing equipment that facilitates gas discharge. Background Technology

[0002] Plasticization refers to the entire process by which plastic is heated in a barrel to reach a fluid state and acquire good plasticity.

[0003] In the existing technology, plasticizing equipment is mainly used to heat, melt and mix solid plastic raw materials evenly for subsequent processing. Blow molding machines are common plasticizing equipment. They heat and melt plastic granules and inject them into blow molding molds to form the molten plastic and obtain plastic products of the required shape and size.

[0004] However, when the blow molding machine injects plastic into the blow mold, the air inside the mold cavity causes the internal air pressure to increase as the plastic fills the cavity. This can prevent the plastic from being fully filled, resulting in incomplete filling and affecting the quality of the finished plastic product.

[0005] Practical content

[0006] The purpose of this invention is to provide a plasticizing device that facilitates gas discharge, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A plasticizing device that facilitates gas discharge includes a lower mold and an upper mold, and also includes a ventilation component, which includes a telescopic component, a limiting component, and a dustproof component.

[0009] The outer surface of one side of the inner cavity of the lower mold is slidably connected to the outer surface of the upper mold;

[0010] The lower mold is equipped with a ventilation component that can discharge gas from the cavity.

[0011] The telescopic component is installed on the lower mold cavity side of the limiting component, and the dustproof component is installed on the other side of the limiting component.

[0012] Furthermore, a ventilation groove is provided inside the lower mold, which connects the inner cavity and the outside of the lower mold. A top plate is fixed to the opening of the ventilation groove on the side of the inner cavity, and a limit block is fixed to the inner wall side surface of the ventilation groove.

[0013] Furthermore, the telescopic assembly includes a baffle, a slide rod, a first spring, and a storage rod. The outer surface of the baffle is fixedly connected to one end of the slide rod, the first spring is sleeved on the outer surface of the slide rod, and the slide rod and the first spring are slidably located inside the storage rod.

[0014] Furthermore, the end surface of the baffle is slidably connected to the inner wall of the top plate.

[0015] Furthermore, the limiting component includes a stop block, a second spring, and a guide rod. The stop block is fixed to the end of the receiving rod, and a positioning groove is formed on the outer surface of the stop block. The second spring slides inside the guide rod, and a positioning block is fixed on the inner wall of the guide rod. A first limiting groove, a second limiting groove, and an annular groove are formed on the outer surface of the guide rod. The first limiting groove communicates with the annular groove, and the second limiting groove communicates with the annular groove.

[0016] Furthermore, the outer surface of the positioning block is slidably connected to the inner wall of the positioning groove, and the outer surface of the limiting block is slidably connected to the inner walls of the first limiting groove, the second limiting groove, and the annular groove.

[0017] Furthermore, the dustproof component includes a pull rod, a movable plate, a fixed plate, and an elastic clip. The fixed plate is fixed to the outer surface of the guide rod. The movable plate and the fixed plate are rotatably connected and fitted together. The holes opened inside the movable plate and the fixed plate are corresponding and identical. The pull rod is fixed to the surface of the movable plate. The elastic clip is fixed inside the fixed plate. The pull rod and the elastic clip correspond to and are engaged.

[0018] Furthermore, the inner wall of the movable plate is rotatably connected to the outer surface of the guide rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are: when molten plastic is injected into the inner cavity of the lower mold, the air in the inner cavity is squeezed, which increases the air pressure in the inner cavity. The increased air pressure pushes the baffle plate to move inward toward the receiving rod, causing the first spring to contract, thereby allowing the air in the inner cavity to flow into the ventilation groove. The air in the ventilation groove will be discharged to the outside of the lower mold through the hole connecting the movable plate and the fixed plate, thereby avoiding the situation where the plastic in the inner cavity is not fully filled due to the presence of air.

[0020] When the ventilation assembly needs to be disassembled for cleaning, push the guide rod towards the inner cavity to cause the second spring to retract, so that the limiting block moves from the second limiting groove to the annular groove, and rotate the guide rod 90 degrees so that the limiting block corresponds to the first limiting groove. At this time, the limiting block loses its limiting effect on the guide rod, and the guide rod can be pulled out to remove the ventilation assembly from the lower mold.

[0021] When the mold is no longer in use, the movable plate is rotated on the guide rod surface by moving the pull rod, so that the holes opened inside the movable plate and the fixed plate are no longer connected, preventing external dust from flowing into the ventilation groove through the air. The elastic clamp can hold the pull rod to ensure the stability of the movable plate. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a three-dimensional schematic diagram of the lower mold of this utility model;

[0024] Figure 3 This is a three-dimensional cross-sectional view of the lower mold of this utility model;

[0025] Figure 4 This is a cross-sectional perspective view of the ventilation component of this utility model;

[0026] Figure 5 This is a three-dimensional schematic diagram of the other side of the lower mold of this utility model.

[0027] Figure 6 This is a three-dimensional schematic diagram of the ventilation component of this utility model;

[0028] Figure 7 This is an exploded three-dimensional schematic diagram of the ventilation component of this utility model;

[0029] Figure 8 This is a cross-sectional perspective view of the telescopic component of this utility model;

[0030] Figure 9 This is a three-dimensional explosion-proof schematic diagram of the dustproof component of this utility model;

[0031] Figure 10 This is a three-dimensional cross-sectional view of the guide rod of this utility model;

[0032] Figure 11 This is a three-dimensional schematic diagram of the dustproof component of this utility model.

[0033] In the diagram: 1. Lower mold; 2. Upper mold; 3. Ventilation component; 4. Tie rod; 5. Positioning block; 6. Top plate; 7. Ventilation groove; 8. Limiting block; 9. Telescopic component; 10. Limiting component; 11. Dustproof component; 12. Baffle; 13. Slide rod; 14. First spring; 15. Storage rod; 16. Stop block; 17. Positioning groove; 18. Second spring; 19. First limiting groove; 20. Second limiting groove; 21. Annular groove; 22. Guide rod; 23. Movable plate; 24. Fixed plate; 25. Elastic clamp. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-11The present invention provides a technical solution: a plasticizing device for facilitating gas discharge, including a lower mold 1 and an upper mold 2, and a ventilation component 3. The ventilation component 3 includes a telescopic component 9, a limiting component 10 and a dustproof component 11. The outer surface of one side of the inner cavity of the lower mold 1 is slidably connected to the outer surface of the upper mold 2. The ventilation component 3, which can discharge the gas in the inner cavity, is installed inside the lower mold 1. The telescopic component 9 is installed on the side of the limiting component 10 near the inner cavity of the lower mold 1, and the dustproof component 11 is installed on the other side of the limiting component 10.

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1-11 The present invention provides a technical solution: a plasticizing device that facilitates gas discharge, wherein a ventilation groove 7 is provided inside the lower mold 1, the ventilation groove 7 connects the inner cavity and the outside of the lower mold 1, a top plate 6 is fixed to the opening of the ventilation groove 7 on the side of the inner cavity, and a limit block 8 is fixed to the inner wall side surface of the ventilation groove 7.

[0038] The telescopic assembly 9 includes a baffle 12, a slide rod 13, a first spring 14, and a storage rod 15. The outer surface of the baffle 12 is fixedly connected to one end of the slide rod 13. The first spring 14 is sleeved on the outer surface of the slide rod 13. The slide rod 13 and the first spring 14 slide inside the storage rod 15.

[0039] The limiting component 10 includes a stop block 16, a second spring 18, and a guide rod 22. The stop block 16 is fixed to the end of the receiving rod 15. A positioning groove 17 is formed on the outer surface of the stop block 16. The second spring 18 is slidably located inside the guide rod 22. A positioning block 5 is fixed on the inner wall of the guide rod 22. A first limiting groove 19, a second limiting groove 20, and an annular groove 21 are formed on the outer surface of the guide rod 22. The first limiting groove 19 communicates with the annular groove 21, and the second limiting groove 20 communicates with the annular groove 21. The outer surface of the positioning block 5 is in contact with the inner wall of the positioning groove 17 and is slidably connected. The outer surface of the limiting block 8 is in contact with the inner walls of the first limiting groove 19, the second limiting groove 20, and the annular groove 21 and is slidably connected.

[0040] The dustproof component 11 includes a pull rod 4, a movable plate 23, a fixed plate 24, and an elastic clip 25. The fixed plate 24 is fixed to the outer surface of the guide rod 22. The movable plate 23 and the fixed plate 24 are fitted and rotatably connected. The holes opened inside the movable plate 23 and the fixed plate 24 are corresponding and identical. The pull rod 4 is fixed to the surface of the movable plate 23. The elastic clip 25 is fixed inside the fixed plate 24. The pull rod 4 and the elastic clip 25 correspond to and are engaged. The inner wall of the movable plate 23 is fitted and rotatably connected to the outer surface of the guide rod 22.

[0041] In actual use, when molten plastic is injected into the inner cavity of the lower mold 1, the injection molding machine injects the plastic into the inner cavity of the lower mold 1 through the feed hole opened inside the upper mold 2. This will squeeze the air in the inner cavity, making the air pressure in the inner cavity increase. The increased air pressure will push the baffle 12 to move inward toward the receiving rod 15, causing the first spring 14 to contract, thereby allowing the air in the inner cavity to flow into the venting groove 7. The air in the venting groove 7 will be discharged to the outside of the lower mold 1 through the hole connecting the movable plate 23 and the fixed plate 24, thereby avoiding the situation where the inner cavity is not fully filled with plastic due to the presence of air.

[0042] When the ventilation assembly 3 is in use, due to the elasticity of the second spring 18, the second spring 18 will exert a force that separates the guide rod 22 and the storage rod 15. Since the baffle 12 is held against the surface of the top plate 6 and the second limiting groove 20 is held against the limiting block 8, the force that separates the guide rod 22 and the storage rod 15 is applied to the top plate 6 and the limiting block 8, so that the ventilation assembly 3 can be stable when in use.

[0043] When the ventilation assembly 3 needs to be disassembled for cleaning, push the guide rod 22 towards the inner cavity to cause the second spring 18 to contract, so that the limiting block 8 moves from the second limiting groove 20 to the annular groove 21, and rotate the guide rod 22 to rotate 90 degrees so that the limiting block 8 corresponds to the first limiting groove 19. At this time, the limiting block 8 loses its limiting effect on the guide rod 22, and the guide rod 22 can be pulled out to disassemble the ventilation assembly 3 from the lower mold 1.

[0044] When the current mold 1 is no longer in use, the movable plate 23 is rotated on the surface of the guide rod 22 by moving the pull rod 4, so that the holes opened inside the movable plate 23 and the fixed plate 24 are no longer connected, thus preventing external dust from flowing into the ventilation groove 7 through the air. The elastic clamp 25 can hold the pull rod 4 to ensure the stability of the movable plate 23.

Claims

1. A plasticizing device for facilitating gas discharge, comprising a lower mold (1) and an upper mold (2), characterized in that: It also includes a ventilation assembly (3), which includes a telescopic assembly (9), a limiting assembly (10), and a dustproof assembly (11). The outer surface of one side of the inner cavity of the lower mold (1) is slidably connected to the outer surface of the upper mold (2); The lower mold (1) is equipped with a ventilation component (3) that can discharge the gas inside the cavity. The telescopic component (9) is installed on one side of the inner cavity of the lower mold (1) of the limiting component (10), and the dustproof component (11) is installed on the other side of the limiting component (10).

2. The plasticizing equipment for facilitating gas discharge according to claim 1, characterized in that, The lower mold (1) has a ventilation groove (7) inside, which connects the inner cavity and the outside of the lower mold (1). A top plate (6) is fixed to the opening of the ventilation groove (7) on the side of the inner cavity, and a limit block (8) is fixed to the inner wall side surface of the ventilation groove (7).

3. The plasticizing equipment for easy gas discharge according to claim 2, characterized in that, The telescopic assembly (9) includes a baffle (12), a slide rod (13), a first spring (14), and a storage rod (15). The outer surface of the baffle (12) is fixedly connected to one end of the slide rod (13). The first spring (14) is sleeved on the outer surface of the slide rod (13). The slide rod (13) and the first spring (14) slide inside the storage rod (15).

4. The plasticizing equipment for easy gas discharge according to claim 3, characterized in that, The end surface of the baffle (12) is slidably connected to the inner wall of the top plate (6).

5. The plasticizing equipment for facilitating gas discharge according to claim 4, characterized in that, The limiting component (10) includes a stop (16), a second spring (18), and a guide rod (22). The stop (16) is fixed to the end of the receiving rod (15). A positioning groove (17) is provided on the outer surface of the stop (16). The second spring (18) slides inside the guide rod (22). A positioning block (5) is fixed on the inner wall of the guide rod (22). A first limiting groove (19), a second limiting groove (20), and an annular groove (21) are provided on the outer surface of the guide rod (22). The first limiting groove (19) communicates with the annular groove (21), and the second limiting groove (20) communicates with the annular groove (21).

6. The plasticizing equipment for facilitating gas discharge according to claim 5, characterized in that, The outer surface of the positioning block (5) is in contact with the inner wall of the positioning groove (17) and the outer surface of the limiting block (8) is in contact with the inner wall of the first limiting groove (19), the second limiting groove (20), and the annular groove (21).

7. The plasticizing equipment for facilitating gas discharge according to claim 6, characterized in that, The dustproof component (11) includes a pull rod (4), a movable plate (23), a fixed plate (24), and an elastic clip (25). The fixed plate (24) is fixed to the outer surface of the guide rod (22). The movable plate (23) and the fixed plate (24) are fitted and rotated together. The holes opened inside the movable plate (23) and the fixed plate (24) are corresponding and identical. The pull rod (4) is fixed to the surface of the movable plate (23). The elastic clip (25) is fixed inside the fixed plate (24). The pull rod (4) and the elastic clip (25) correspond to and are engaged.

8. The plasticizing equipment for facilitating gas discharge according to claim 7, characterized in that, The inner wall of the movable plate (23) is rotatably connected to the outer surface of the guide rod (22).

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