A double-deck sifter for producing thermoplastic dynamically vulcanized elastomers

Abstract

The utility model provides a kind of double-deck powder screening machine for thermoplastic dynamic vulcanization elastomer production, it is related to double-deck powder screening machine technical field, comprising: first box;The first box left end surface and right end surface are fixed with an orbit seat, each orbit seat is slidably connected with a connecting block, two connecting blocks are welded on the second box, the second box bottom is in contact with the first box top, and a screw rod for locking the connecting block on the orbit seat is threadedly connected on the right connecting block.The orbit seat fixed on the left and right end surfaces of the first box is slidably connected with the second box through the connecting block, and a screw rod for locking is provided on the right connecting block, so that the second box can be pulled forward by loosening the screw rod when maintaining the screening assembly, without complex disassembly operation, which greatly reduces the maintenance difficulty, saves maintenance time and ensures the stable operation of the equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of double-layer sieving machines, and in particular to a double-layer sieving machine for the production of thermoplastic dynamic vulcanized elastomers. Background Technology

[0002] Thermoplastic dynamic vulcanized elastomers are polymeric materials made by blending small amounts of plastic and rubber, followed by dynamic vulcanization to form a continuous phase of plastic and a dispersed phase of rubber. They exhibit rubber elasticity at room temperature and can be plasticized and molded at high temperatures. During the production of thermoplastic dynamic vulcanized elastomers, the raw materials need to be screened using a sieving machine.

[0003] The existing device requires cleaning of the screen on the screening frame after a period of use. However, the screening frame is installed inside the screening device and requires disassembly of multiple parts to facilitate cleaning, which is cumbersome. Although the existing device can perform left and right screening, it cannot perform vibration screening at the same time, resulting in low screening efficiency. Utility Model Content

[0004] This utility model relates to a double-layer powder screening machine for the production of thermoplastic dynamic vulcanized elastomers. It solves the problem that existing devices require cleaning of the screens on the screening frame after a period of use. However, the screening frame is installed inside the screening device and requires the disassembly of multiple parts to facilitate cleaning, which is cumbersome. Although existing devices can perform left and right screening, they cannot achieve vibration screening at the same time, resulting in low screening efficiency.

[0005] This utility model provides a double-layer powder screening machine for the production of thermoplastic dynamic vulcanized elastomers, specifically including: a first box; a track seat is fixed on the left end face and the right end face of the first box, and a connecting block slides on each track seat. The inner sides of the two connecting blocks are welded to the second box. The bottom of the second box contacts the top of the first box. A screw for locking the connecting block on the track seat is threaded onto one of the connecting blocks on the right side.

[0006] Furthermore, a screening assembly is installed on the first housing. The screening assembly consists of a first sliding seat, a screening frame, a helical spring, a second sliding seat, a rotating shaft, a pressing block, and a motor. The first sliding seat slides on the left side of the first housing, and the second sliding seat slides on the right side of the first housing. The screening frame slides on the first and second sliding seats. Two helical springs are sleeved on the first sliding seat, and the helical springs are left-resetting components of the first sliding seat.

[0007] Furthermore, the right end face of the first box has a rotating shaft, on which an extrusion block is welded. The extrusion block is aligned with the screening frame. The right end face of the first box has a through hole that allows the extrusion block to contact the screening frame. A motor is fixed on the first box, and the output shaft of the motor is fixed on the rotating shaft. The motor is electrically connected to the control switch of the external device and the external power supply.

[0008] Furthermore, the first sliding seat, the screening frame, the helical spring, the second sliding seat, the rotating shaft, the pressing block, and the motor together form a screening assembly, and a screening assembly is also installed on the second housing.

[0009] Furthermore, the screening frame is equipped with an auxiliary component, which consists of protrusions and auxiliary rods. Each screening frame has protrusions welded at equal intervals on its bottom surface. The protrusions are semi-cylindrical structures. Auxiliary rods are welded to the inner walls of both the first and second boxes. The auxiliary rods are cylindrical rod-shaped structures and are in contact with the bottom of the screening frame. When the screening frame moves left and right, the screening frame vibrates continuously under the action of the auxiliary rods and protrusions.

[0010] Furthermore, a drawer is inserted into the first box, and the drawer is located below a filter box.

[0011] This utility model provides a double-layer powder screening machine for the production of thermoplastic dynamic vulcanized elastomers, which has the following beneficial effects:

[0012] Regarding the ease of equipment maintenance, the track seats fixed on the left and right ends of the first housing are slidably connected to the second housing via connecting blocks, and the right connecting block is equipped with a screw for locking. When maintaining the screening components, the second housing can be pulled forward simply by loosening the screw, without the need for complicated disassembly operations, which greatly reduces the difficulty of maintenance, saves maintenance time, and ensures the stable operation of the equipment in the future.

[0013] In terms of screening efficiency, this application has installed screening components consisting of a first sliding seat, a screening frame, and a spiral spring on both the first and second boxes. Through the synergistic effect of the double-layer screening components, the powder screening operation can be completed more efficiently than the single-layer screening equipment, thereby increasing the overall screening capacity and meeting the needs of mass production.

[0014] In terms of optimizing the screening effect, this application has a semi-cylindrical protrusion welded to the bottom of the screening frame, and cylindrical auxiliary rods are provided on the inner walls of both the first and second boxes. When the motor drives the rotating shaft to rotate the extrusion block, causing the screening frame to move back and forth under the action of the spiral spring, the cooperation between the auxiliary rod and the protrusion can make the screening frame vibrate continuously, effectively preventing powder from accumulating and clogging in the screening frame, significantly improving the screening accuracy and effect, and ensuring that the quality of the screened powder better meets the production requirements. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A perspective view of the double-layer sieve powder machine for the production of thermoplastic dynamic vulcanized elastomers according to this utility model is shown;

[0019] Figure 2 This utility model is shown Figure 1 Enlarged view of point A;

[0020] Figure 3 This utility model is shown Figure 1 Rotated 3D image;

[0021] Figure 4 This invention shows a front view of a double-layer sieve powder machine for the production of thermoplastic dynamic vulcanized elastomers.

[0022] Figure 5 A perspective view of the double-layer sieve machine used in the production of thermoplastic dynamic vulcanized elastomers according to this invention is shown after removing the first and second chambers.

[0023] Figure 6 This image shows a three-dimensional view of the disassembled double-layer sieve machine used in the production of thermoplastic dynamic vulcanized elastomers according to this invention.

[0024] List of reference numerals

[0025] 1. First housing; 101. Track seat; 102. Connecting block; 103. Second housing; 104. Drawer; 2. Screening assembly; 201. First sliding seat; 202. Screening frame; 203. Helical spring; 204. Second sliding seat; 205. Rotating shaft; 206. Pressing block; 207. Motor; 3. Auxiliary assembly; 301. Protrusion; 302. Auxiliary rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1: Please refer to Figures 1 to 6 :

[0028] This utility model proposes a double-layer powder screening machine for the production of thermoplastic dynamic vulcanized elastomers, comprising: a first housing 1; a track seat 101 is fixed on both the left and right end faces of the first housing 1, and a connecting block 102 slides on each track seat 101. The inner sides of the two connecting blocks 102 are welded to a second housing 103. The bottom of the second housing 103 contacts the top of the first housing 1. A screw for locking the connecting block 102 on the track seat 101 is threaded onto one of the connecting blocks 102 on the right side. During subsequent maintenance of the screening component 2, the threaded rod on the connecting block 102 is loosened, and then the second housing 103 is pulled forward, thereby facilitating the maintenance of the screening component 2.

[0029] The first housing 1 is equipped with a screening component 2, which consists of a first sliding seat 201, a screening frame 202, a helical spring 203, a second sliding seat 204, a rotating shaft 205, a pressing block 206, and a motor 207. The first sliding seat 201 slides on the left side of the first housing 1, and the second sliding seat 204 slides on the right side of the first housing 1. The screening frame 202 slides on the first sliding seat 201 and the second sliding seat 204. Two helical springs 203 are sleeved on the first sliding seat 201, and the helical springs 203 are left-resetting components of the first sliding seat 201.

[0030] The first housing 1 has a rotating shaft 205 on its right end face, and a pressing block 206 is welded on the rotating shaft 205. The pressing block 206 is aligned with the screening frame 202. The right end face of the first housing 1 has a through hole that allows the pressing block 206 to contact the screening frame 202. A motor 207 is fixed on the first housing 1. The output shaft of the motor 207 is fixed on the rotating shaft 205. The motor 207 is electrically connected to an external control switch and an external power supply. During screening, the motor 207 is driven to rotate, which in turn drives the rotating shaft 205 and the pressing block 206 to rotate. Under the continuous pressing of the pressing block 206, the screening frame 202 can reciprocate, thus completing the screening action.

[0031] The first sliding seat 201, the screening frame 202, the spiral spring 203, the second sliding seat 204, the rotating shaft 205, the squeezing block 206 and the motor 207 together form the screening component 2. The screening component 2 is also installed on the second box 103. Double-layer screening is achieved through the screening component 2 on the second box 103 and the screening component 2 on the first box 1.

[0032] The first box 1 is fitted with a drawer 104, which is located below a screening box 202. After screening, the powder will be collected by the drawer 104 for easy storage.

[0033] Example 2, based on Example 1, such as Figures 1 to 6 As shown, an auxiliary component 3 is installed on the screening frame 202. The auxiliary component 3 consists of a protrusion 301 and an auxiliary rod 302. Each screening frame 202 has a protrusion 301 welded at equal intervals on its bottom surface. The protrusion 301 has a semi-cylindrical structure. An auxiliary rod 302 is welded on the inner wall of the first box 1 and the second box 103. The auxiliary rod 302 has a cylindrical rod structure. The auxiliary rod 302 contacts the bottom of the screening frame 202. When the screening frame 202 moves left and right, the screening frame 202 vibrates continuously under the action of the auxiliary rod 302 and the protrusion 301. The continuous vibration of the screening frame 202 can improve the screening effect.

[0034] The working principle of this embodiment is as follows: When using the double-layer sieving machine for the production of thermoplastic dynamic vulcanized elastomers, the thermoplastic dynamic vulcanized elastomer material to be screened is added to the screening frames 202 in the second box 103 and the first box 1, respectively. Then, the control switch of the external device is turned on, and the motor 207 electrically connected to the external power supply is started. The motor 207 drives the rotating shaft 205 and the extrusion block 206 welded to the rotating shaft 205 to rotate. The extrusion block 206 contacts the screening frame 202 through the through hole on the right end face of the first box 1 and continuously extrudes it. Under the extrusion action, the screening frame 202 will reciprocate on the first sliding seat 201 and the second sliding seat 204. At the same time, the helical spring 203 sleeved on the first sliding seat 201 will provide the first sliding seat 201 with a leftward reset. During the left and right movement of the screening frame 202, the semi-cylindrical protrusions 301 welded at equal intervals on its bottom end face will interact with the cylindrical auxiliary rods 302 welded to the inner walls of the first box 1 and the second box 103, causing the screening frame 202 to vibrate continuously. Double-layer screening is achieved through the screening components 2 installed on both the second box 103 and the first box 1. The screened powder will fall into the drawer 104 below for collection. After the screening work is completed, the control switch is turned off to stop the motor 207 from running, and the drawer 104 can be pulled out for subsequent storage of the collected powder. When it is necessary to perform subsequent maintenance on the screening component 2, simply loosen the screw on the right connecting block 102 and pull the second box 103 forward to easily perform maintenance on the screening component 2.

Claims

1. A double-layer powder screening machine for the production of thermoplastic dynamic vulcanized elastomers, characterized in that, include: First housing (1); a track seat (101) is fixed on the left end face and the right end face of the first housing (1), and a connecting block (102) slides on each track seat (101). The inner sides of the two connecting blocks (102) are welded to the second housing (103). The bottom of the second housing (103) contacts the top of the first housing (1). A screw for locking the connecting block (102) on the track seat (101) is threaded onto one of the connecting blocks (102) on the right side.

2. The double-layer powder screening machine for producing thermoplastic dynamic vulcanized elastomers according to claim 1, characterized in that, The first housing (1) is equipped with a screening component (2). The screening component (2) consists of a first sliding seat (201), a screening frame (202), a helical spring (203), a second sliding seat (204), a rotating shaft (205), a pressing block (206), and a motor (207). The first sliding seat (201) slides on the left side of the first housing (1), and the second sliding seat (204) slides on the right side of the first housing (1). The screening frame (202) slides on the first sliding seat (201) and the second sliding seat (204). Two helical springs (203) are sleeved on the first sliding seat (201). The helical springs (203) are the leftward reset components of the first sliding seat (201).

3. The double-layer powder screening machine for producing thermoplastic dynamic vulcanized elastomers according to claim 2, characterized in that, The first housing (1) has a rotating shaft (205) on its right end face. An extrusion block (206) is welded on the rotating shaft (205). The extrusion block (206) is aligned with the screening frame (202). The right end face of the first housing (1) has a through hole that allows the extrusion block (206) to contact the screening frame (202). A motor (207) is fixed on the first housing (1). The output shaft of the motor (207) is fixed on the rotating shaft (205). The motor (207) is electrically connected to the control switch of the external device and the external power supply.

4. A double-layer sieving machine for producing thermoplastic dynamic vulcanized elastomers according to claim 3, characterized in that, The first sliding seat (201), the screening frame (202), the helical spring (203), the second sliding seat (204), the rotating shaft (205), the extrusion block (206) and the motor (207) together form the screening assembly (2), and the screening assembly (2) is also installed on the second housing (103).

5. A double-layer sieving machine for producing thermoplastic dynamic vulcanized elastomers according to claim 4, characterized in that, An auxiliary component (3) is installed on the screening frame (202). The auxiliary component (3) consists of a protrusion (301) and an auxiliary rod (302). Each screening frame (202) has a protrusion (301) welded at equal intervals on its bottom surface. The protrusion (301) is a semi-cylindrical structure. An auxiliary rod (302) is welded on the inner wall of the first box (1) and the second box (103). The auxiliary rod (302) is a cylindrical rod structure. The auxiliary rod (302) contacts the bottom of the screening frame (202). When the screening frame (202) moves left and right, the screening frame (202) vibrates continuously under the action of the auxiliary rod (302) and the protrusion (301).

6. A double-layer sieving machine for producing thermoplastic dynamic vulcanized elastomers according to claim 5, characterized in that, A drawer (104) is inserted into the first box (1), and the drawer (104) is located below a filter box (202).

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