Dust cover for injection molding and blow molding
By introducing a dust extraction component into the dust cover, internal dust can be automatically removed when the finished plastic product is taken out, which solves the problem of insufficient dust protection reliability in the prior art and improves the dust protection effect and the quality of plastic products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-10
AI Technical Summary
Existing dust covers for injection molding and blow molding are prone to letting in external dust when removing finished plastic products, resulting in insufficient dust protection reliability.
A dust cover with a dust collection component was designed, including a sealed door, a fan, an air guide shell, and a suction head. The opening and closing of the sealed door automatically controls the start and stop of the fan, ensuring that internal dust is effectively removed when plastic finished products are taken out.
This improves the dustproof reliability of the dust cover, reduces the amount of dust entering the interior of the dust cover, and enhances the production quality and aesthetics of plastic products.
Smart Images
Figure CN223982153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing technology, and in particular to a dust cover for injection molding and blow molding. Background Technology
[0002] Blow molding and injection molding are two plastic processing techniques. Injection molding involves melting plastic material and then injecting it into a mold cavity to form a shape. Blow molding uses gas pressure to inflate a hot preform closed in a mold to create a hollow product, or to blow a tubular preform into a tubular film without a mold. Both processes involve heating the plastic material. If dust gets into the plastic product before it cools down, it will affect the quality and appearance of the product. Therefore, dust protection is necessary for both injection and blow molding. Injection and blow molding machines are usually equipped with dust covers. During production, the dust cover is closed to prevent dust from entering. However, when removing the finished plastic product, the dust cover needs to be opened, and external dust may still get in. Therefore, relying solely on a closed dust cover to prevent dust from entering the production process is not reliable enough. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a dust cover for injection molding and blow molding, which can improve the dust protection effect and improve the dust protection reliability by actively absorbing dust.
[0004] The technical solution adopted by this utility model is: to provide a dust cover for injection molding and blow molding, including a dust cover body covering the injection molding and blow molding machine body, with an outlet on the front side of the dust cover body; a sealing door is slidably connected to the outside of the outlet along the horizontal direction; and a dust collection and treatment component is provided on the rear side of the sealing door.
[0005] The dust collection assembly includes a connecting frame fixed to the rear side of the sealed door; the connecting frame is arranged laterally; an adjusting screw is arranged laterally on the connecting frame; the adjusting screw is rotatably connected to the connecting frame; a mounting seat is threaded onto the adjusting screw; the mounting seat is slidably connected to the connecting frame; an arc-shaped air guide shell is fixed on the mounting seat; the center of the air guide shell faces the injection blow molding machine body; multiple suction heads facing the injection blow molding machine body are connected to the air guide shell through an extension tube; an exhaust fan is fixed to the outside of the dust cover body; the exhaust port of the exhaust fan is connected to the air guide shell through an air guide hose.
[0006] To further optimize this technical solution, a dust cover for injection molding and blow molding has a horizontally telescopic expansion joint connected to the outside of the dust cover body; the fixed end of the expansion joint is fixedly connected to the dust cover body, and the telescopic end of the expansion joint is fixedly connected to the sealing door.
[0007] To further optimize this technical solution, a reference block is fixed to the rear side of the sealing door of a dust cover for injection molding and blow molding; an action switch for controlling the start and stop of the exhaust fan is fixed to the inner wall of the dust cover body; the reference block corresponds to the action switch; when the sealing door seals the outlet, the reference block triggers the action switch and the exhaust fan starts; when the sealing door releases the seal on the outlet, the reference block disengages from the action switch and the exhaust fan stops.
[0008] To further optimize this technical solution, the extension tube of a dust cover for injection molding and blow molding is a shaped flexible tube structure.
[0009] The beneficial effects of this utility model are as follows:
[0010] The sealing door effectively seals the outlet, preventing external dust from entering the dust cover during plastic product manufacturing. Multiple suction heads, directed towards the injection / blow molding machine, are connected to the air guide shell via extension tubes. The exhaust fan's outlet is connected to the air guide shell via a flexible air guide hose. The exhaust fan directs air towards the plastic product manufacturing area, effectively reducing dust entering the dust cover after the sealing door is opened.
[0011] The air guide shell is connected to the mounting base, which is threadedly connected to the adjusting screw and slidably connected to the connecting frame. By rotating the adjusting screw, the position of the air guide shell in the lateral direction can be adjusted to better adapt to the output position of the finished product during plastic product production, making the dust collection position more precise. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the dust cover.
[0014] In the diagram, 1. Dust cover body; 2. Outlet; 3. Sealing door; 4. Connecting frame; 5. Adjusting screw; 6. Mounting base; 7. Air guide shell; 8. Extension tube; 9. Suction head; 10. Exhaust fan; 11. Air guide hose; 12. Expansion joint; 13. Reference block; 14. Action switch. Detailed Implementation
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0016] like Figure 1-2 As shown, a dust cover for injection molding and blow molding includes a dust cover body 1 that covers the body of the injection molding and blow molding machine. The dust cover body 1 has an outlet 2 on its front side. A sealing door 3 is slidably connected to the outside of the outlet 2 along the horizontal direction. A dust collection and treatment component is provided on the rear side of the sealing door 3.
[0017] like Figure 1-2As shown, the dust collection assembly includes a connecting frame 4 fixed to the rear side of the sealing door 3; the connecting frame 4 is arranged horizontally; an adjusting screw 5 is arranged horizontally on the connecting frame 4; the adjusting screw 5 is rotatably connected to the connecting frame 4; a mounting seat 6 is threadedly connected to the adjusting screw 5; the mounting seat 6 is slidably connected to the connecting frame 4; an arc-shaped air guide shell 7 is fixed on the mounting seat 6; the center of the air guide shell 7 faces the injection blow molding machine body; multiple suction heads 9 facing the injection blow molding machine body are connected to the air guide shell 7 through an extension tube 8; an exhaust fan 10 is fixed to the outside of the dust cover body 1; the exhaust port of the exhaust fan 10 is connected to the air guide shell 7 through an air guide hose 11.
[0018] When the sealed door 3 is opened and the finished plastic product is taken out through the outlet 2, outside air will flow into the dust cover body 1, inevitably bringing in some dust. Therefore, even if the sealed door 3 is closed again to block the inside of the dust cover body 1 from the outside, it will not be able to eliminate the dust that entered before. Especially in harsh environments with a lot of dust, the dustproof effect is often unreliable.
[0019] The core technical effect of this solution is that after each closing of the sealing door 3, the dust that previously entered the dust cover body 1 is removed, thereby improving the cleanliness of the interior of the dust cover body 1. Specifically, firstly, the lateral position of the air guide shell 7 is adjusted according to the position of the plastic product during injection molding or blow molding, so that after the sealing door 3 is closed, the air guide shell 7 can more precisely correspond to the position of the plastic product during production. This process is achieved by turning the adjusting screw 5 to move the mounting base 6. Then, by operating the exhaust fan 10, the suction head 9 can achieve a dust removal effect at the location where the plastic product is being produced, effectively reducing the amount of dust inside the dust cover body 1, especially making the plastic product production area exceptionally clean, effectively improving the production quality of the plastic products.
[0020] like Figure 1 As shown, a horizontally telescopic telescopic device 12 is connected to the outside of the dust cover body 1; the fixed end of the telescopic device 12 is fixedly connected to the dust cover body 1, and the telescopic end of the telescopic device 12 is fixedly connected to the sealing door 3. The opening and closing of the sealing door 3 can be controlled by the telescopic device 12, which can save manpower, and the obstruction and limitation of the telescopic device 12 can ensure the tightness of the sealing door 3 in blocking the outlet 2.
[0021] like Figure 2As shown, a reference block 13 is fixed to the rear side of the sealing door 3; an action switch 14 for controlling the start and stop of the exhaust fan 10 is fixed to the inner wall of the dust cover body 1; the reference block 13 corresponds to the action switch 14; when the sealing door 3 seals the outlet 2, the reference block 13 triggers the action switch 14, and the exhaust fan 10 starts; when the sealing door 3 releases the seal on the outlet 2, the reference block 13 disengages from the action switch 14, and the exhaust fan 10 stops. The opening and closing of the sealing door 3 is linked to the start and stop of the exhaust fan 10, which simplifies the secondary control steps, improves efficiency, and avoids the problem of staff not starting the exhaust fan 10 after the sealing door 3 is closed, or not stopping the exhaust fan 10 after the sealing door 3 is opened, thus ensuring operational reliability.
[0022] The extension tube 8 is a fixed hose structure. When the air guide shell 7 is adjusted and aligned with the production position of the plastic product, the orientation and angle of each suction head 9 can be adjusted by adjusting the fixed hose, so that the suction focus can more accurately correspond to the parts of the plastic product that need to be protected from dust, thereby further improving the production quality of the plastic product.
[0023] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A dust cover for injection blow molding comprising a dust cover body (1) which covers the outside of an injection blow molding machine, characterized in that: The dust cover body (1) is provided with a taking-out port (2) on the front side; the taking-out port (2) is slidably connected with a sealing door (3) on the outside in the transverse direction; the sealing door (3) is provided with a dust suction treatment assembly on the back side; The dust suction treatment assembly comprises a connecting frame (4) fixed on the back side of the sealing door (3); the connecting frame (4) is arranged in the transverse direction; the connecting frame (4) is provided with an adjusting screw (5) in the transverse direction; the adjusting screw (5) is rotatably connected with the connecting frame (4); the adjusting screw (5) is threadedly connected with a mounting seat (6); the mounting seat (6) is slidably connected with the connecting frame (4); the mounting seat (6) is fixed with an arc-shaped air guide shell (7); the center of the air guide shell (7) is directed to the injection blow molding machine body; the air guide shell (7) is communicated with a plurality of suction heads (9) directed to the injection blow molding machine body through an extension pipe (8); the dust cover body (1) is fixed with an air suction machine (10) on the outside; the air suction port of the air suction machine (10) is communicated with the air guide shell (7) through an air guide hose (11).
2. A dust cover for injection blow molding according to claim 1, characterized in that: The dust cover body (1) is connected with a transversely telescopic telescopic device (12); the fixed end of the telescopic device (12) is fixedly connected with the dust cover body (1), and the telescopic end of the telescopic device (12) is fixedly connected with the sealing door (3).
3. A dust cover for injection blow molding according to claim 1, characterized in that: The sealing door (3) is fixed with a reference block (13) on the back side; the dust cover body (1) is fixed with an action switch (14) for controlling the start and stop of the air suction machine (10) on the inner wall; the reference block (13) corresponds to the action switch (14); when the sealing door (3) seals the taking-out port (2), the reference block (13) triggers the action switch (14), and the air suction machine (10) starts; when the sealing door (3) unseals the taking-out port (2), the reference block (13) is separated from the action switch (14), and the air suction machine (10) stops.
4. A dust cover for injection blow molding according to claim 1, characterized in that: The extension pipe (8) is a shaped hose structure.