Extruder with dustproof structure

Abstract

This utility model relates to an extruder with a dustproof structure, comprising: an extrusion assembly including an extrusion cylinder and an extrusion die coaxially connected to the inside of the outlet end of the extrusion cylinder; and a dustproof assembly installed at one end of the extrusion assembly; the dustproof assembly includes a lower clamping block, an upper clamping block matching the lower clamping block, a baffle hinged to one side of the upper clamping block, an extension frame connected to the other side of the upper clamping block, and a push-pull cylinder connected to the top of the extension frame; the upper clamping block is hinged to the middle of the baffle, and the bottom end of the push-pull cylinder is hinged upwards to the top of the baffle, the bottom end of the baffle being used to abut against the outlet end of the extrusion cylinder. The above-mentioned extruder with a dustproof structure is simple in structure and easy to use. The lower clamping block and the upper clamping block cooperate to clamp the extrusion cylinder, and the upper clamping block is hinged with a baffle. By using the baffle to abut against the outlet end of the extrusion cylinder, an effective shielding can be formed between the outlet end of the extrusion cylinder and the extrusion die, thereby preventing dust and other impurities from adhering to or entering the connecting parts and avoiding adverse effects.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to an extruder with a dustproof structure. Background Technology

[0002] An extruder is a mechanical device used to heat and plasticize solid materials such as plastics and rubber, and then extrude them through a rotating screw to form continuous profiles or products. It mainly includes a screw, extrusion barrel, hopper, and die. Its working principle is as follows: the screw rotates inside the extrusion barrel to propel the material forward, while simultaneously using heating and shearing to plasticize the material, which is then finally extruded through the die to form the final shape.

[0003] The extrusion barrel outlet is directly connected to the mold, and this part is crucial for material forming. However, dust and impurities in the air can easily enter this connection area and mix with the molten material, causing spots and scratches on the surface of the finished product, or forming bubbles and fractures inside, directly deteriorating the product's appearance, strength, sealing, and other physical properties. Even worse, when dust accumulates on the outlet and mold surface for a long time, it can easily carbonize or solidify under high temperatures, not only clogging the mold flow channels and affecting the uniformity of material flow, but also accelerating mold wear and shortening the mold's lifespan. Utility Model Content

[0004] Based on this, the present invention provides an extruder with a dustproof structure. The structure is simple and easy to use. The lower clamping block and the upper clamping block cooperate to clamp the extrusion cylinder. The upper clamping block is hinged with a baffle. The baffle abuts against the outlet end of the extrusion cylinder, which can effectively shield the outlet end of the extrusion cylinder and the extrusion die, thereby preventing dust and other impurities from adhering to or entering the connection part and avoiding adverse effects.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted: An extruder with a dustproof structure includes: An extrusion assembly, including an extrusion barrel and an extrusion die coaxially connected to the inside of the outlet end of the extrusion barrel; and A dustproof assembly is installed at one end of the extrusion assembly; the dustproof assembly includes a lower clamping block, an upper clamping block that matches the lower clamping block, a baffle hinged to one side of the upper clamping block, an extension frame connected to the other side of the upper clamping block, and a push-pull cylinder connected to the top of the extension frame; the upper clamping block is hinged to the middle of the baffle, the bottom end of the push-pull cylinder is hinged upward to the top of the baffle, and the bottom end of the baffle is used to abut against the outlet end of the extrusion cylinder; the lower clamping block clamps the outlet end of the extrusion cylinder after cooperating with the upper clamping block.

[0006] The extruder with the dustproof structure described above has a simple structure and is easy to use. The lower clamping block and the upper clamping block cooperate to clamp the extrusion cylinder. The upper clamping block is hinged with a baffle. The baffle abuts against the outlet end of the extrusion cylinder, which can effectively shield the outlet end of the extrusion cylinder and the extrusion die, thereby preventing dust and other impurities from adhering to or entering the connection parts and avoiding adverse effects.

[0007] In one embodiment, the lower clamping block has a lower notch at the top and the upper clamping block has an upper notch at the bottom. The upper notch and the lower notch cooperate to clamp the outlet end of the extrusion cylinder.

[0008] In one embodiment, a limiting protrusion is also provided on the side of the top of the upper clamping block near the baffle, the limiting protrusion being used to abut against the baffle.

[0009] In one embodiment, the dustproof assembly further includes a transverse pin installed inside the upper clamping block and a tension spring connected to the transverse pin; the upper clamping block has a through groove extending along the length direction of the extrusion cylinder in the middle, and the transverse pin is fixedly installed inside the through groove at the end away from the baffle; one end of the tension spring is used to connect to the transverse pin, and the other end of the tension spring is used to connect to the baffle.

[0010] In one embodiment, the length direction of the transverse pin is perpendicular to the length direction of the extrusion barrel.

[0011] In one embodiment, the extrusion assembly further includes a screw coaxially mounted inside the extrusion barrel, a gearbox connected to one end of the screw, a drive motor connected to the gearbox, and a hopper connected above the extrusion barrel. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of an extruder with a dustproof structure in the baffle-open state according to an embodiment of the present invention. Figure 2 for Figure 1 An exploded view of an extruder with a dustproof structure is shown. Figure 3 for Figure 2 An exploded view of an extruder with a dustproof structure, shown from another perspective; Figure 4 for Figure 1 A cross-sectional view of the dustproof assembly in an extruder with a dustproof structure; Figure 5 for Figure 1 The diagram shows a three-dimensional representation of an extruder with a dustproof structure in a closed baffle state.

[0013] Attached image annotations: 10-Extrusion assembly, 11-Extrusion cylinder, 12-Extrusion die, 13-Gearbox, 14-Drive motor, 15-Hopper; 20-Dustproof component, 21-Lower clamping block, 210-Lower notch, 22-Upper clamping block, 220-Upper notch, 23-Baffle, 24-Elevator frame, 25-Push-pull cylinder, 26-Limiting protrusion, 27-Horizontal pin, 28-Tension spring, 29-Through groove. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0015] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0017] Please see Figures 1 to 5 The present invention provides an extruder with a dustproof structure, comprising an extrusion assembly 10 and a dustproof assembly 20 installed at one end of the extrusion assembly 10.

[0018] The extrusion assembly 10 includes an extrusion cylinder 11, an extrusion die 12 coaxially connected to the inside of the outlet end of the extrusion cylinder 11, a screw (not shown) coaxially installed inside the extrusion cylinder 11, a reduction gearbox 13 connected to one end of the screw, a drive motor 14 connected to the reduction gearbox 13, and a hopper 15 connected above the extrusion cylinder 11; the outlet end of the extrusion cylinder 11 is also used to connect a dustproof assembly 20.

[0019] The dustproof assembly 20 includes a lower clamping block 21, an upper clamping block 22 matching the lower clamping block 21, a baffle 23 hinged to one side of the upper clamping block 22, a riser 24 connected to the other side of the upper clamping block 22, and a push-pull cylinder 25 connected to the top of the riser 24. The upper clamping block 22 is hinged to the middle of the baffle 23, and the bottom end of the push-pull cylinder 25 is hinged upwards to the top of the baffle 23. The bottom end of the baffle 23 is used to abut against the outlet end of the extrusion cylinder 11. In actual use, the push-pull cylinder 25 drives the baffle 23 to rotate, driving the bottom end of the baffle 23 away from the outlet end of the extrusion cylinder 11 to create space for smooth extrusion. After extrusion is completed, the push-pull cylinder 25 drives the baffle 23 to rotate in the opposite direction until the bottom end of the baffle 23 abuts against the outlet end of the extrusion cylinder 11 again. At this time, the baffle 23 effectively shields the outlet end of the extrusion cylinder 11 and the extrusion die 12 (e.g., Figure 5 As shown in the figure, this prevents dust and other impurities from adhering to the outlet end of the extrusion cylinder 11 and the surface of the extrusion die 12, thus avoiding adverse effects on the quality of subsequent extruded products.

[0020] In this embodiment, the lower clamping block 21 has a lower notch 210 at the top and the upper clamping block 22 has an upper notch 220 at the bottom. The upper notch 220 and the lower notch 210 cooperate to clamp the outlet end of the extrusion cylinder 11, so as to achieve a fixed connection between the dustproof component 20 and the extrusion cylinder 11.

[0021] like Figure 4 As shown, in this embodiment, a limiting protrusion 26 is also provided on the side of the upper clamping block 22 near the baffle 23. The limiting protrusion 26 is used to abut against the baffle 23 to limit the rotation angle of the baffle 23 and prevent it from overturning and affecting the dustproof function or structural stability.

[0022] In other embodiments, such as Figure 4 As shown, the dustproof assembly 20 also includes a transverse pin 27 installed inside the upper clamping block 22 and a tension spring 28 connecting the transverse pin 27. Specifically, the upper clamping block 22 has a through groove 29 extending along the length of the extrusion cylinder 11 in the middle, and the transverse pin 27 is fixedly installed inside the end of the through groove 29 away from the baffle 23. One end of the tension spring 28 is used to connect to the transverse pin 27, and the other end of the tension spring 28 is used to connect to the baffle 23. Under the elastic force of the tension spring 28, the baffle 23 can always remain in contact with the outlet end of the extrusion cylinder 11, ensuring the dustproof effect even when there is a brief pressure fluctuation in the push-pull cylinder 25, further improving the dustproof reliability.

[0023] In this embodiment, the length direction of the transverse pin 27 is perpendicular to the length direction of the extrusion cylinder 11 to ensure that the tension direction of the tension spring 28 on the baffle 23 is reasonable and to avoid the baffle 23 being deviated by force.

[0024] The extruder with the dustproof structure described above has a simple structure and is easy to use. The lower clamping block 21 and the upper clamping block 22 cooperate to clamp the extrusion cylinder 11. The upper clamping block 22 is hinged with a baffle 23. The baffle 23 abuts against the outlet end of the extrusion cylinder 11, which can effectively shield the outlet end of the extrusion cylinder 11 and the extrusion die 12, thereby preventing dust and other impurities from adhering to or entering the connection part and avoiding adverse effects.

[0025] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0026] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An extruder having a dust-proof structure, characterized by comprising: include: An extrusion assembly, including an extrusion barrel and an extrusion die coaxially connected to the inside of the outlet end of the extrusion barrel; and A dustproof assembly is installed at one end of the extrusion assembly; the dustproof assembly includes a lower clamping block, an upper clamping block that matches the lower clamping block, a baffle hinged to one side of the upper clamping block, an extension frame connected to the other side of the upper clamping block, and a push-pull cylinder connected to the top of the extension frame; the upper clamping block is hinged to the middle of the baffle, the bottom end of the push-pull cylinder is hinged upward to the top of the baffle, and the bottom end of the baffle is used to abut against the outlet end of the extrusion cylinder; the lower clamping block clamps the outlet end of the extrusion cylinder after cooperating with the upper clamping block.

2. The extruder with a dust-proof structure according to claim 1, characterized by The lower clamping block has a lower notch at the top and an upper clamping block has an upper notch at the bottom. The upper and lower notches fit together to clamp the outlet end of the extrusion cylinder.

3. The extruder with a dust-proof structure according to claim 1, characterized by The top of the upper clamping block near the baffle also has a limiting protrusion, which is used to abut against the baffle.

4. The extruder having a dust-proof structure according to claim 1, characterized by The dustproof assembly also includes a transverse pin installed inside the upper clamping block and a tension spring connecting the transverse pin; the middle of the upper clamping block is provided with a through groove extending along the length of the extrusion cylinder, and the transverse pin is fixedly installed inside the through groove at the end away from the baffle; one end of the tension spring is used to connect the transverse pin, and the other end of the tension spring is used to connect the baffle.

5. The extruder with a dust-proof structure according to claim 4, characterized by The length direction of the transverse pin is perpendicular to the length direction of the extrusion barrel.

6. The extruder with a dust-proof structure according to claim 1, wherein The extrusion assembly also includes a screw coaxially mounted inside the extrusion barrel, a gearbox connected to one end of the screw, a drive motor connected to the gearbox, and a hopper connected to the top of the extrusion barrel.

Images