Granulation extruder for thermoplastic rubber production

Abstract

The utility model relates to the technical field of granulation extruders, and provides a granulation extruder for thermoplastic rubber production, which comprises support frames, a conveying box, an extrusion box, an adjusting assembly, a granulation plate, a placing assembly and a positioning assembly, the conveying box is fixedly arranged on the two support frames, the bottom end and the top end of the extrusion box are respectively provided with a feed opening and a through groove, and the feed opening is communicated with the through groove. The cutting mechanism is arranged in the extrusion box, the adjusting assembly is arranged on the conveying box and the extrusion box, the number of the granulation plates is three, the three granulation plates are arranged on the adjusting assembly, the number of the placing assemblies is two, the two placing assemblies are arranged on the adjusting assembly and used for placing the granulation plates, and the number of the positioning assemblies is two. The two positioning assemblies are arranged on the side face of the extrusion box and used for positioning the granulation plate. According to the technical scheme, the problem that in the prior art, when the sizes of rubber extruded particles are changed, the sizes of rubber are possibly different during extrusion is solved.

Description

Technical Field

[0001] This utility model relates to the field of granulation extruder technology, specifically to a granulation extruder for thermoplastic rubber production. Background Technology

[0002] Thermoplastic elastomers, also known as synthetic rubber or artificial rubber, possess the high elasticity, aging resistance, and oil resistance of traditional cross-linked vulcanized rubber, while also having the advantages of easy processing and wide processing methods of ordinary plastics. In their production, raw materials are typically fed into a granulator, extruded into strips by a screw conveyor, and finally cut into granules by a cutter. During the extrusion into strips, the conveyed raw material usually exits through the granulation holes of the granulation plate, thus forming strips. Most existing equipment struggles to produce rubber of different particle sizes; if different sizes of rubber are required, the equipment typically needs to be changed.

[0003] A search for the above-mentioned technologies revealed that, among the currently disclosed technologies, such as the rubber granulator proposed in CN214982371U, a left and right granulating plate are installed on the side of the conveying device. The left granulating plate has several large granulating holes, and the right granulating plate has large granulating holes that are consistent with those on the left granulating plate, as well as small granulating holes. If it is necessary to produce rubber granules of different sizes, the right granulating plate is rotated so that the small granulating holes on it are aligned with the large granulating holes on the left granulating plate. During rubber extrusion, the granules can be extruded through the small granulating holes.

[0004] However, if only large rubber particles are to be produced, some rubber will still pass through the small granulation holes of the right granulation plate during extrusion. If only small rubber particles are to be produced, some rubber will also pass through the large granulation holes of the right granulation plate during extrusion, forming strips with a larger diameter. When changing the production of rubber with different particle sizes, the device is difficult to completely change, and particles of different sizes may be produced after production, resulting in a more mixed production process. Utility Model Content

[0005] This invention proposes a granulation extruder for thermoplastic rubber production, which solves the problem in the prior art that the size of the extruded rubber particles may be inconsistent during extrusion when the size of the rubber particles is changed.

[0006] The technical solution of this utility model is as follows:

[0007] A granulation extruder for thermoplastic rubber production includes a conveying mechanism and a cutting mechanism, and further includes a support frame, a conveying box, an extrusion box, an adjusting component, granulation plates, a placement component, and a positioning component. Two support frames are provided, and the conveying box is fixedly mounted on the two support frames. A feed cylinder is fixedly installed through the top of the conveying box, and the conveying mechanism is located inside the conveying box. The extrusion box is fixedly mounted on the side of the conveying box, and a discharge port and a through slot are respectively opened at the bottom and top of the extrusion box. The cutting mechanism is located inside the extrusion box. The adjusting component is located on the conveying box and the extrusion box. Three granulation plates are provided, and the three granulation plates are mounted on the adjusting component. Two placement components are provided, and the two placement components are mounted on the adjusting component for placing the granulation plates. Two positioning components are provided, and the two positioning components are located on the side of the extrusion box for positioning the granulation plates.

[0008] Furthermore, the adjustment assembly includes slide rails, sliding plates, and connecting rods. Two slide rails are provided, and the two slide rails are respectively fixedly installed on the sides of the extrusion box and the conveying box. Two sliding plates are provided, and the two sliding plates are respectively slidably installed on the two slide rails. The sides of the sliding plates are provided with three through slots. Six connecting rods are provided, and the six connecting rods are arranged in pairs. Each pair of connecting rods is slidably installed in the through slots of the sliding plates, and each pair of granulation plates is fixedly installed between each pair of connecting rods.

[0009] Furthermore, the placement assembly includes a connecting frame, a rotating plate, and a placement frame. The connecting frame is fixedly installed on the side of the sliding plate. There are six rotating plates, which are arranged in pairs. Each pair of rotating plates is fixedly installed between the connecting frame and the sliding plate. There are three placement frames, each of which is rotatably installed between each pair of rotating plates.

[0010] Furthermore, the positioning assembly includes a fixing plate, a spring, a connecting plate, and a positioning block. The fixing plate is fixedly installed on the side of the extrusion box, the spring is installed on the side of the fixing plate, the connecting plate is fixedly installed on the side of the fixing plate, the positioning block is fixedly installed on the other end of the spring, and the positioning block is slidably installed on the surface of the connecting plate.

[0011] Furthermore, each of the three granulation plates is provided with granulation holes, and the granulation plates can penetrate the through slot at the top of the extrusion box.

[0012] Furthermore, the sliding plate has three positioning holes on its side, which are respectively at the same horizontal position as the three granulation plates, and the positioning block is located on the side of the through groove of the extrusion box.

[0013] The working principle and beneficial effects of this utility model are as follows:

[0014] 1. In this utility model, by adjusting the component, three granulation plates are driven and placed into the extrusion box. Thus, when producing rubber granules of different sizes, the corresponding granulation plates can be moved into the interior of the extrusion box, so that the rubber passes through the granulation holes of the granulation plates to form the required granules.

[0015] 2. In this utility model, the positioning component can accurately move the granulating plate to the top of the through groove of the extrusion box when the granulating plate is moved into the extrusion box, so that the granulating plate can be accurately placed into the extrusion box.

[0016] In summary, this device, through the cooperation of the support frame, conveying box, extrusion box, adjustment component, granulation plate, placement component, and positioning component, can move different granulation plates into the extrusion box, thereby producing granules of different sizes. Compared with the prior art, when it is necessary to change the size of the granules, it will not cause the extruded granules to be of different sizes, thus preventing the production of mixed granules. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the granulation plate and the adjustment component of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the sliding plate and the placement component of this utility model.

[0021] Figure 4 This is a schematic diagram of the positioning component of this utility model;

[0022] Figure 5 This is a schematic diagram of the conveying mechanism of this utility model;

[0023] Figure 6 This is a schematic diagram of the cutting structure of this utility model.

[0024] In the diagram: 1. Support frame; 2. Conveying box; 3. Extrusion box; 4. Granulation plate; 5. Feed cylinder; 101. Slide rail; 102. Sliding plate; 103. Connecting rod; 201. Connecting frame; 202. Rotating plate; 203. Placement frame; 301. Fixing plate; 302. Spring; 303. Connecting plate; 304. Positioning block; 401. Conveying shaft; 402. Conveying auger; 403. Motor 1; 501. Cutting blade; 502. Drive shaft; 503. Motor 2. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1-6 As shown, this embodiment proposes a granulation extruder for thermoplastic rubber production, including a conveying mechanism and a cutting mechanism, as referenced. Figure 5 and Figure 6 The conveying mechanism includes a conveying shaft 401, a conveying auger 402, and a first motor 403. The conveying shaft 401 is rotatably mounted inside the conveying box 2, the conveying auger 402 is fixedly mounted on the conveying shaft 401, and the first motor 403 is mounted on the side of the conveying box 2, with its output end fixedly connected to the conveying shaft 401. The cutting mechanism includes a cutting blade 501, a drive shaft 502, and a second motor 503. The second motor 503 is mounted on the side of the extrusion box 3, the drive shaft 502 is located inside the extrusion box 3, and is rotatably mounted on the extrusion box 3, with its output end fixedly connected to the second motor 503. The cutting blade 501 is fixedly mounted on the drive shaft 502.

[0027] It also includes a support frame 1, a conveyor box 2, an extrusion box 3, an adjustment component, a granulation plate 4, a placement component, and a positioning component. There are two support frames 1. The conveyor box 2 is fixedly installed on the two support frames 1. The top of the conveyor box 2 is fixedly installed through a feed cylinder 5, and the conveying mechanism is located inside the conveyor box 2. The extrusion box 3 is fixedly installed on the side of the conveyor box 2. The bottom and top of the extrusion box 3 are respectively provided with a discharge port and a through groove, and the cutting mechanism is located inside the extrusion box 3. The adjustment component is set on the conveyor box 2 and the extrusion box 3. There are three granulation plates 4, and the three granulation plates 4 are set on the adjustment component. There are two placement components, and the two placement components are set on the adjustment component for placing the granulation plates 4. There are two positioning components, and the two positioning components are set on the side of the extrusion box 3 for positioning the granulation plates 4.

[0028] In this embodiment, reference Figure 2 The adjustment assembly includes a slide rail 101, a sliding plate 102, and connecting rods 103. There are two slide rails 101, which are fixedly installed on the sides of the extrusion box 3 and the conveying box 2, respectively. There are two sliding plates 102, which are slidably installed on the two slide rails 101, and the sides of the sliding plates 102 have three through slots. There are six connecting rods 103, which are arranged in pairs. Each pair of connecting rods 103 is slidably installed in the through slots of the sliding plate 102, and each granulation plate 4 is fixedly installed between each pair of connecting rods 103. By moving the position of the sliding plate 102 on the slide rail 101, the granulation plate 4 is moved above the extrusion box 3, moved to the top of the through slot of the extrusion box 3, and then placed in.

[0029] In this embodiment, reference Figure 3 The placement assembly includes a connecting frame 201, a rotating plate 202, and a placement frame 203. The connecting frame 201 is fixedly installed on the side of the sliding plate 102. There are six rotating plates 202, which are arranged in pairs. Each pair of rotating plates 202 is fixedly installed between the connecting frame 201 and the sliding plate 102. There are three placement frames 203, each of which is rotatably installed between each pair of rotating plates 202. By rotating the placement frame 203 to a vertical position, the connecting rod 103 is placed on the placement frame 203, so that the granulation plate 4 can be placed statically above the extrusion box 3.

[0030] In this embodiment, reference Figure 4 The positioning assembly includes a fixed plate 301, a spring 302, a connecting plate 303, and a positioning block 304. The fixed plate 301 is fixedly installed on the side of the extrusion box 3, the spring 302 is installed on the side of the fixed plate 301, the connecting plate 303 is fixedly installed on the side of the fixed plate 301, and the positioning block 304 is fixedly installed on the other end of the spring 302. The positioning block 304 is slidably installed on the surface of the connecting plate 303. When the sliding plate 102 is moved, the positioning block 304 can enter the positioning hole of the sliding plate 102 when the spring 302 is compressed.

[0031] In this embodiment, reference Figure 2 Each of the three granulation plates 4 has a granulation hole, and the granulation plate 4 can pass through the through groove at the top of the extrusion box 3, so that the rubber can be formed into granules through the granulation hole.

[0032] In this embodiment, reference Figure 1The sliding plate 102 has three positioning holes on its side. The three positioning holes are at the same horizontal position as the three granulation plates 4. The positioning block 304 is located on the side of the through groove of the extrusion box 3. When the sliding plate 102 and the granulation plate 4 are moved, the granulation plate 4 can be moved to the position of the positioning block 304 so that it can be moved just above the through groove of the extrusion box 3 and slidably placed into the extrusion box 3.

[0033] In this embodiment, when the granulating extruder granulates rubber, it first moves the sliding plate 102 according to the required particle size, so that one of the three granulating plates 4 slides above the through groove at the top of the extrusion box 3. It should be noted that the granulation holes of the three granulating plates 4 increase in size sequentially. During movement, the corresponding positioning holes of the granulating plates 4 can be slid to the positioning block 304. By squeezing the positioning block 304, under the contraction of the spring 302, the positioning block 304 is pressed into the positioning hole, thereby positioning the corresponding granulating plate 4 above the through groove of the extrusion box 3. Then, the placement plate is rotated to disengage the connecting rod 103. After removing the placement plate, slide the granulation plate 4 above the through groove into the extrusion box 3 through the through groove. Then, place the raw material into the conveying box 2 through the feeding cylinder 5. Start motor 1 403 to drive the conveying shaft 401 and the conveying auger 402 to rotate, and convey the raw material into the extrusion box 3. The raw material is formed into strips through the granulation holes of the granulation plate 4. Then, start motor 2 503 to rotate the drive shaft 502 and the cutting blade 501 to cut the strip rubber into granules, which flow out from the discharge port of the extrusion box 3. If different sizes of granules are needed later, repeat the above steps and move another granulation plate 4 into the extrusion box 3.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A granulation extruder for thermoplastic rubber production, comprising a conveying mechanism and a cutting mechanism, characterized in that, Also includes: Support frame (1), two support frames (1) are provided; The conveying box (2) is fixedly installed on two support frames (1), and a feed cylinder (5) is fixedly installed through the top of the conveying box (2), and the conveying mechanism is set inside the conveying box (2); An extrusion box (3) is fixedly installed on the side of the conveying box (2). The bottom and top of the extrusion box (3) are respectively provided with a discharge port and a through groove, and the cutting mechanism is set inside the extrusion box (3). Adjustment components are disposed on the conveying box (2) and the extrusion box (3); Granulation plate (4), three of the granulation plates (4) are provided, and the three granulation plates (4) are provided on the adjustment assembly; Placement components, two of which are provided on the adjustment component for placing the granulation plate (4); The positioning components are provided in two parts, which are located on the side of the extrusion box (3) for positioning the granulation plate (4).

2. The granulating extruder for thermoplastic rubber production according to claim 1, characterized in that, The adjustment component includes: Slide rail (101), two slide rails (101) are provided, and the two slide rails (101) are respectively fixedly installed on the side of the extrusion box (3) and the conveying box (2); Sliding plate (102), two sliding plates (102) are provided, the two sliding plates (102) are respectively slidably mounted on the two slide rails (101), and three through slots are opened on the side of the sliding plate (102); Connecting rods (103), six of which are provided, each pair of the six connecting rods (103) is slidably installed in the through groove of the sliding plate (102), and each granulation plate (4) is fixedly installed between each pair of connecting rods (103).

3. The granulation extruder for thermoplastic rubber production according to claim 2, characterized in that, The placement component includes: A connecting frame (201) is fixedly installed on the side of the sliding plate (102); Rotating plate (202), six rotating plates (202) are provided, and the six rotating plates (202) are arranged in pairs. Each pair of rotating plates (202) is fixedly installed between the connecting frame (201) and the sliding plate (102); Placement rack (203), three of which are provided, each of which is rotatably installed between each set of rotating plates (202).

4. The granulating extruder for thermoplastic rubber production according to claim 3, characterized in that, The positioning component includes: A fixing plate (301) is fixedly installed on the side of the extrusion box (3); A spring (302) is mounted on the side of the fixing plate (301); A connecting plate (303) is fixedly installed on the side of the fixing plate (301); A positioning block (304) is fixedly mounted on the other end of the spring (302) and slidably mounted on the surface of the connecting plate (303).

5. The granulating extruder for thermoplastic rubber production according to claim 4, characterized in that, Each of the three granulation plates (4) has a granulation hole, and the granulation plate (4) can pass through the through groove at the top of the extrusion box (3).

6. The granulating extruder for thermoplastic rubber production according to claim 5, characterized in that, The sliding plate (102) has three positioning holes on its side. The three positioning holes are respectively at the same horizontal position as the three granulation plates (4), and the positioning block (304) is located on the side of the through groove of the extrusion box (3).

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