Extruder for preforming of conductive rubber compound

Abstract

The utility model relates to extruder technical field discloses a kind of extruders for electrically conductive rubber material preforming, including base, the top of base is fixedly connected with auger discharge equipment, the top of auger discharge equipment is provided with negative pressure mechanism, the right end of auger discharge equipment is fixedly connected with connector, and the outer wall of connector is provided with dismounting mechanism;The negative pressure mechanism includes negative pressure fan, the bottom of negative pressure fan is fixedly connected in the top wall left side of auger discharge equipment, the right side of negative pressure fan is communicated with filter box, and the top wall of filter box is communicated with injection valve.In the utility model, by the communication of bubble negative pressure pipe, the bubble generated in material conveying process can be extracted by negative pressure fan through bubble negative pressure pipe, and then the airflow generated by bubble breakage is filtered after discharging again through filter box, so that the situation that the product forming quality is affected by bubble generated in material output process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to an extruder for preforming conductive rubber materials. Background Technology

[0002] Conductive rubber is a functional composite material that combines electrical conductivity and rubber elasticity. By incorporating conductive fillers into the rubber matrix, the originally insulating rubber becomes conductive. It is used in electronic equipment sealing, electromagnetic shielding, and conductive applications for buttons. An extruder is required when conveying and processing the rubber material.

[0003] Existing extruders suffer from uneven rubber compound mixing and excessively high extrusion speeds, which can lead to defects such as roughness, bumps, tears, or cracks on the surface of the extruded product, thus affecting the molding quality of the material. Current solutions involve optimizing the rubber compound mixing process, using efficient mixing equipment and extending the mixing time, removing large undispersed particles after mixing through filtration, and then adjusting the extrusion speed according to the rubber compound characteristics and die size, and installing speed regulation devices to reduce the impact on the molding quality of the material. However, the problem of air bubbles forming inside the product due to poor venting during the extrusion process still exists, causing problems that affect the molding quality of the material. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an extruder for preforming conductive rubber materials, aiming to improve the problem in the prior art where poor venting during the extrusion process of rubber materials causes air bubbles to form inside the product, thus affecting the quality of material molding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an extruder for preforming conductive rubber material, comprising a base, a screw conveyor fixedly connected to the top of the base, a negative pressure mechanism provided on the top of the screw conveyor, a connector fixedly connected to the right end of the screw conveyor, and a disassembly and assembly mechanism provided on the outer wall of the connector. The negative pressure mechanism includes a negative pressure fan. The bottom of the negative pressure fan is fixedly connected to the left side of the top wall of the auger discharge device. A filter box is connected to the right side of the negative pressure fan. An injection valve is connected to the top wall of the filter box. Two filter plates are slidably installed on the inner wall of the filter box. An extraction pipe is connected to the right side of the filter box. An air bubble negative pressure pipe is connected to the right end of the extraction pipe. The bottom end of the air bubble negative pressure pipe is connected to the right side of the top wall of the auger discharge device. Two heating jackets are fixedly installed on the right side of the outer wall of the auger discharge device.

[0006] As a further description of the above technical solution: The disassembly and assembly mechanism includes a fixing ring, the inner wall of which is fixedly connected to the outer wall of the connector. Multiple flip plates are rotatably connected to the outer wall of the fixing ring. A locking groove is provided on one side of the flip plate. An installation ring is provided on the right side of the connector. The outer wall of the installation ring engages with the locking groove. A bolt is threaded to the other side of the flip plate. The end of the bolt is threaded to the outer wall of the installation ring. A protective frame is fixedly connected to the middle of the outer wall of the flip plate.

[0007] As a further description of the above technical solution: A control switch is fixedly connected to the front side of the auger discharge device, and the control switch is electrically connected to the auger discharge device and the negative pressure fan respectively.

[0008] As a further description of the above technical solution: The auger discharge device also includes a sealing ring, the outer wall of which is fixedly connected to the outer wall of the injection valve.

[0009] As a further description of the above technical solution: A rubber ring is fixedly connected to the left end of the outer wall of the extraction tube, and the outer wall of the rubber ring is fixedly connected to the right side of the filter box.

[0010] As a further description of the above technical solution: Multiple support columns are fixedly connected to the right side of the bottom wall of the auger outlet device, and the bottom of the support columns is fixedly connected to the right side of the top wall of the base.

[0011] As a further description of the above technical solution: The disassembly and assembly mechanism also includes multiple rubber rings, the inner walls of which are respectively fixedly connected to the middle of the bolt.

[0012] As a further description of the above technical solution: Two connecting plates are fixedly connected to the front and rear sides of the base, and the top wall of the connecting plates is provided with mounting holes.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by starting the auger discharge device, the mixed conductive rubber material can be conveyed. Then, with the connection of the bubble negative pressure pipe, the bubbles generated during the material conveying process can be extracted by the negative pressure fan through the bubble negative pressure pipe. Then, the airflow generated by the bursting of the bubbles is filtered through the filter box before being discharged, which reduces the impact of bubbles generated during the material output process on the product molding quality and improves the processing effect.

[0014] 2. In this utility model, by installing the mounting ring and the forming structure, the engaging groove on one side of the flip plate can initially fix the outer wall of the mounting ring under the rotation of the flip plate. Then, under the rotation of the bolt, the mounting ring can be further fixed and installed, so that the connection at the right end of the connector can be flexibly disassembled and assembled, thereby improving the maintenance and cleaning efficiency of the connector. Attached Figure Description

[0015] Figure 1 This is a perspective view of an extruder for preforming conductive rubber material according to the present invention. Figure 2 This is a front view of an extruder for preforming conductive rubber material according to the present invention. Figure 3 This is a top view of an extruder for preforming conductive rubber material according to the present invention. Figure 4 This is an exploded view of the filter plate of an extruder for preforming conductive rubber material according to the present invention. Figure 5 This is an exploded view of the mounting ring of an extruder for preforming conductive rubber material according to the present invention.

[0016] Legend: 1. Base; 2. Screw discharge device; 3. Negative pressure mechanism; 301. Negative pressure fan; 302. Filter box; 303. Injection valve; 304. Filter plate; 305. Extraction pipe; 306. Bubble negative pressure pipe; 307. Sealing ring; 308. Heating jacket; 309. Support column; 310. Rubber ring; 4. Connector; 5. Disassembly and assembly mechanism; 501. Fixing ring; 502. Flip plate; 503. Engaging groove; 504. Mounting ring; 505. Bolt; 506. Rubber ring; 507. Protective frame; 6. Control switch; 7. Connecting plate; 8. Mounting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 , Figure 3 and Figure 4An embodiment of this utility model is provided: an extruder for preforming conductive rubber material, including a base 1, a screw conveyor 2 fixedly connected to the top of the base 1, the screw conveyor 2 can convey conductive rubber material, a negative pressure mechanism 3 is provided on the top of the screw conveyor 2, the negative pressure mechanism 3 can extract air bubbles generated during conveying, a connector 4 is fixedly connected to the right end of the screw conveyor 2, and a disassembly and assembly mechanism 5 is provided on the outer wall of the connector 4; The negative pressure mechanism 3 includes a negative pressure fan 301. The bottom of the negative pressure fan 301 is fixedly connected to the left side of the top wall of the auger discharge device 2, so that when the negative pressure fan 301 is started, it can draw negative pressure airflow. The right side of the negative pressure fan 301 is connected to a filter box 302. The top wall of the filter box 302 is connected to an injection valve 303, through which clean gas can be injected to clean the inside of the filter box 302. Two filter plates 304 are slidably installed on the inner wall of the filter box 302. The filter plate 304 can filter the air bubbles extracted by negative pressure. The right side of the filter box 302 is connected to the extraction pipe 305, and the right end of the extraction pipe 305 is connected to the air bubble negative pressure pipe 306. The air bubble negative pressure pipe 306 can guide the air bubbles generated during material conveying. The bottom end of the air bubble negative pressure pipe 306 is connected to the right side of the top wall of the auger discharge device 2. Two heating jackets 308 are fixedly installed on the right side of the outer wall of the auger discharge device 2. The activation of the heating jackets 308 increases the material conveying rate. Specifically, the auger discharge device 2, fixedly connected to the top of the base 1, conveys conductive rubber material. The negative pressure fan 301, fixed on the left side of the top wall, starts to extract negative pressure airflow. The filter box 302, connected to the right side, and the injection valve 303, connected to the top wall, inject clean gas to clean the interior. Two filter plates 304, slidably installed on the inner wall, filter the air bubbles extracted by the negative pressure. The extraction pipe 305, connected to the right side of the filter box 302, and the air bubble negative pressure pipe 306, connected to the right end, guide the air bubbles generated during material conveying. Two heating jackets 308, fixedly installed on the right end of the outer wall of the auger discharge device 2, start to increase the material conveying rate. The disassembly and assembly mechanism 5 on the outer wall of the connector 4, fixedly connected to the right end, works in conjunction with the negative pressure mechanism 3 to extract the air bubbles generated during conveying, thus completing the conveying of the conductive rubber material.

[0019] Reference Figure 1 , Figure 2 and Figure 5The disassembly and assembly mechanism 5 includes a fixing ring 501. The inner wall of the fixing ring 501 is fixedly connected to the outer wall of the connector 4. Multiple flip plates 502 are rotatably connected to the outer wall of the fixing ring 501, so that when the flip plates 502 rotate, the locking groove 503 on the inner wall of the flip plate 502 can engage and limit the mounting ring 504. The locking groove 503 is opened on one side of the flip plate 502, and the mounting ring 504 is provided on the right side of the connector 4. The outer wall of the mounting ring 504 engages with the locking groove 503, thereby achieving the initial fixation of the mounting ring 504. The other side of the flip plate 502 is threadedly connected to a bolt 505. The end of the bolt 505 is threadedly connected to the outer wall of the mounting ring 504. Then, by rotating the bolt 505, the mounting ring 504 can be stably connected. Conversely, it can be disassembled, thereby achieving flexible disassembly and assembly of the connection at the right end of the connector 4. A protective frame 507 is fixedly connected to the middle of the outer wall of the flip plate 502. Specifically, the inner wall of the fixing ring 501 is fixedly connected to the outer wall of the connector 4. The multiple flip plates 502 rotatably connected to the outer wall of the fixing ring 501 rotate so that the engaging groove 503 on one side engages with the outer wall of the mounting ring 504, thus achieving initial fixation of the mounting ring 504. The bolt 505 threaded on the other side of the flip plate 502 rotates, and the threaded end is threaded to the outer wall of the mounting ring 504 for stable connection. Conversely, the bolt 505 is loosened to complete disassembly, realizing flexible disassembly and assembly of the right end connection of the connector 4. The protective frame 507 fixedly connected in the middle of the outer wall of the flip plate 502 plays a protective role.

[0020] Reference Figure 1 , Figure 4 and Figure 5 A control switch 6 is fixedly connected to the front side of the auger discharge device 2. The control switch 6 is electrically connected to the auger discharge device 2 and the negative pressure fan 301 respectively. The auger discharge device 2 also includes a sealing ring 307. The outer wall of the sealing ring 307 is fixedly connected to the outer wall of the injection valve 303. The disassembly and assembly mechanism 5 also includes multiple rubber rings 506. The inner walls of the multiple rubber rings 506 are fixedly connected to the middle of the bolts 505 respectively. Specifically, the control switch 6, which is electrically connected to the auger discharge device 2 and the negative pressure fan 301 respectively, enables the device to be turned on and off. The sealing ring 307 can improve the sealing effect at the connection between the injection valve 303 and the filter box 302. The rubber ring 506 can reduce the rotational damage to the tilting plate 502 caused by the bolt 505 during use.

[0021] Reference Figure 1 , Figure 2 and Figure 5A rubber ring 310 is fixedly connected to the left end of the outer wall of the extraction pipe 305, and the outer wall of the rubber ring 310 is fixedly connected to the right side of the filter box 302; multiple support columns 309 are fixedly connected to the right side of the bottom wall of the auger discharge device 2, and the bottom of the support columns 309 is fixedly connected to the right side of the top wall of the base 1; two connecting plates 7 are fixedly connected to the front and rear sides of the base 1, and the top wall of the connecting plate 7 is provided with mounting holes 8; Specifically, the rubber ring 310 can protect the left end connection of the extraction pipe 305, the support column 309 can support and stabilize the bottom right end of the auger discharge device 2, and the connection plate 7 and the mounting hole 8 make it easy to install and fix the device.

[0022] Working principle: By starting the auger discharge device 2, the mixed conductive rubber material can be conveyed, so that the connector 4 fixed on the right end of the auger discharge device 2 can cooperate with the disassembly and assembly mechanism 5 to complete the installation of the molding mechanism and achieve the purpose of pre-forming. Then, by starting the negative pressure fan 301, a negative pressure airflow is generated. The bubble negative pressure pipe 306 connected to the right side of the top wall of the auger discharge device 2 guides the bubbles generated during material conveying. The bubbles enter the filter box 302 through the extraction pipe 305 connected to the right end. Two filter plates 304 slidably installed on the inner wall filter the bubbles. The filtered airflow is extracted and discharged by the negative pressure fan 301. During cleaning, cleaning gas can be injected through the injection valve 303 connected to the top wall of the filter box 302 to clean the inside. At the same time as conveying, the two heating jackets 308 fixed on the right side of the outer wall of the auger discharge device 2 are started to increase the material conveying rate. Through the above process, the impact of bubbles on the product molding quality during material output is reduced, and the processing effect is improved. Furthermore, by installing the mounting ring 504 with the forming mechanism, the material is conveyed into its interior. Then, by rotating multiple flip plates 502, the engaging groove 503 on one side engages with the outer wall of the mounting ring 504, initially limiting and fixing the mounting ring 504. Subsequently, the bolt 505 threaded on the other side of the flip plate 502 rotates, so that the end of the bolt 505 is threadedly connected to the outer wall of the mounting ring 504, completing the further fixing and installation of the mounting ring 504. Conversely, the bolt 505 rotates in the opposite direction to separate from the mounting ring 504, and the flip plate 502 rotates to separate the engaging groove 503 from the mounting ring 504, realizing disassembly. The protective frame 507 fixed in the middle of the outer wall of the flip plate 502 provides protection. The entire process achieves flexible disassembly and assembly of the right end of the connector 4 through the above operations, improving the maintenance and cleaning efficiency of the connector 4.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An extruder for preforming conductive rubber material, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the auger discharge device (2), the top of the auger discharge device (2) is provided with a negative pressure mechanism (3), the right end of the auger discharge device (2) is fixedly connected to the connector (4), and the outer wall of the connector (4) is provided with a disassembly and assembly mechanism (5). The negative pressure mechanism (3) includes a negative pressure fan (301). The bottom of the negative pressure fan (301) is fixedly connected to the left side of the top wall of the auger discharge device (2). The right side of the negative pressure fan (301) is connected to a filter box (302). The top wall of the filter box (302) is connected to an injection valve (303). Two filter plates (304) are slidably installed on the inner wall of the filter box (302). The right side of the filter box (302) is connected to an extraction pipe (305). The right end of the extraction pipe (305) is connected to an air bubble negative pressure pipe (306). The bottom end of the air bubble negative pressure pipe (306) is connected to the right side of the top wall of the auger discharge device (2). Two heating jackets (308) are fixedly installed on the right side of the outer wall of the auger discharge device (2).

2. The extruder for preforming conductive rubber material according to claim 1, characterized in that: The disassembly and assembly mechanism (5) includes a fixing ring (501), the inner wall of which is fixedly connected to the outer wall of the connector (4), and a plurality of flip plates (502) are rotatably connected to the outer wall of the fixing ring (501). A locking groove (503) is provided on one side of the flip plate (502), and an installation ring (504) is provided on the right side of the connector (4). The outer wall of the installation ring (504) engages with the locking groove (503). A bolt (505) is threadedly connected to the other side of the flip plate (502), and the end of the bolt (505) is threadedly connected to the outer wall of the installation ring (504). A protective frame (507) is fixedly connected to the middle of the outer wall of the flip plate (502).

3. The extruder for preforming conductive rubber material according to claim 2, characterized in that: A control switch (6) is fixedly connected to the front side of the auger discharge device (2), and the control switch (6) is electrically connected to the auger discharge device (2) and the negative pressure fan (301).

4. An extruder for preforming conductive rubber material according to claim 1, characterized in that: The screw conveyor (2) also includes a sealing ring (307), the outer wall of which is fixedly connected to the outer wall of the injection valve (303).

5. An extruder for preforming conductive rubber material according to claim 1, characterized in that: A rubber ring (310) is fixedly connected to the left end of the outer wall of the extraction tube (305), and the outer wall of the rubber ring (310) is fixedly connected to the right side of the filter box (302).

6. An extruder for preforming conductive rubber material according to claim 1, characterized in that: The bottom right side of the auger discharge device (2) is fixedly connected to a plurality of support columns (309), and the bottom of the support columns (309) is fixedly connected to the top right side of the base (1).

7. An extruder for preforming conductive rubber material according to claim 2, characterized in that: The disassembly and assembly mechanism (5) also includes multiple rubber rings (506), the inner walls of which are respectively fixedly connected to the middle of the bolt (505).

8. An extruder for preforming conductive rubber material according to claim 1, characterized in that: The base (1) has two connecting plates (7) fixedly connected to its front and rear sides, and the top wall of the connecting plate (7) has an installation hole (8).

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