Granulating device for thermoplastic elastomer production

Abstract

The utility model discloses a granulating device for producing a thermoplastic elastomer, and relates to the technical field of granulators. The device comprises an auger extrusion cylinder, a preheating cylinder is arranged at the input end of the auger extrusion cylinder, the output end of the auger extrusion cylinder is fixedly connected with a granulation cutter box, the preheating cylinder comprises a feeding pipe, the middle of the top face of the preheating cylinder is connected with a rotating cylinder in a penetrating and rotating mode, and the upper portion of the side wall of the rotating cylinder is fixedly sleeved with a second belt pulley. The side wall of the rotating cylinder is fixedly sleeved with a stirring paddle, a scraping plate is arranged in the preheating cylinder, the scraping plate and the stirring paddle are staggered, a lifting rod is rotationally connected into a cylinder opening of the rotating cylinder, a plug is fixedly connected to the bottom end of the lifting rod, the plug corresponds to and is matched with the feeding pipe, and a lifting seat is fixedly connected to the top end of the lifting rod; according to the utility model, the phenomenon that the granulation effect is influenced due to insufficient heating during feeding can be avoided, the materials can be uniformly mixed, and the inner wall of the preheating cylinder can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of granulators, in particular to a granulating device for the production of thermoplastic elastomers. Background Technique

[0002] After retrieval, a granulator for the production of thermoplastic elastomers with the publication (announcement) number of "CN211030805U" includes a granulator main body. An inlet hopper is arranged on the upper outer surface of the granulator main body. The inlet hopper includes a first motor and a belt connected to the outer surface. A driven shaft is arranged on the inner surface of the belt. Stirring rods and spiral blades are arranged on the outer surface of the driven shaft. A spiral rod is arranged inside the granulator main body. A granulating cutter is arranged at one end of the spiral rod. A protective cover is arranged on the outer surface of the granulating cutter.

[0003] Although the granulator for the production of thermoplastic elastomers with the publication (announcement) number of "CN211030805U" can prevent the raw materials in the inlet hopper from caking when feeding through the arranged stirring rods and spiral blades, which affects the granulating effect and quality of the granulator, and can prevent the granulating cutter from falling off during operation to cause production accidents and reduce safety risks through the arranged protective cover. At the same time, with the cooperation of the movable cover plate and the bolt, it is convenient for the maintenance of the granulating cutter. However, there are still certain drawbacks. There is a situation of insufficient heating during feeding, which affects the granulating quality, and the inner wall of the inlet hopper cannot be cleaned in time. In view of the above problems, the inventor proposes a granulating device for the production of thermoplastic elastomers to solve the above problems. Summary of the Utility Model

[0004] In order to solve the problems that the granulating device for the production of thermoplastic elastomers has insufficient heating during feeding and cannot clean the inner wall of the inlet hopper in time; the purpose of the utility model is to provide a granulating device for the production of thermoplastic elastomers.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A granulating device for the production of thermoplastic elastomers includes a screw extrusion barrel. A preheating barrel is arranged at the input end of the screw extrusion barrel. A granulating cutter box is fixedly connected to the output end of the screw extrusion barrel. The preheating barrel includes a feed pipe. The output end of the feed pipe corresponds to and cooperates with the input end of the screw extrusion barrel. A rotating barrel is rotatably connected through the middle of the top surface of the preheating barrel. A second belt pulley is fixedly sleeved on the upper part of the side wall of the rotating barrel. Stirring paddles are fixedly sleeved on the side wall of the rotating barrel. A scraping plate is arranged inside the preheating barrel, and the scraping plate is staggered with the stirring paddles. A lifting rod is rotatably connected inside the barrel opening of the rotating barrel. A plug is fixedly connected to the bottom end of the lifting rod. The plug corresponds to and cooperates with the feed pipe. A lifting seat is fixedly connected to the top end of the lifting rod.

[0006] Preferably, a cutting knife is provided inside the granulating cutter box. A discharge pipe is fixedly connected through the bottom surface of the granulating cutter box. Legs are fixedly connected to the outer side wall of the auger extrusion barrel. An auger is provided inside the auger extrusion barrel. An auger driver is provided at the end face of the auger extrusion barrel. The output shaft of the auger driver is fixed to the shaft end of the auger. An electric heater is provided inside the provided preheating barrel. The thermoplastic elastomer raw material can be preheated through the preheating barrel to avoid insufficient heating during feeding and affecting the granulation effect. The raw material falling from the preheating barrel will enter the auger extrusion barrel. Starting the auger driver can make the auger inside the auger extrusion barrel rotate. The material is melted and extruded through the auger extrusion barrel. The material can be cut into granular form through the granulating cutter box to form TPE granulation products. A fixing frame is fixedly connected to the outer side wall of the preheating barrel. The bottom surface of the fixing frame is fixedly connected to the top surface of the auger extrusion barrel. A feed port is provided through the top surface of the preheating barrel. And a end cover is detachably provided at the port of the feed port. The thermoplastic elastomer raw material and other additives, such as plasticizers and pigments, can be added into the preheating barrel through the feed port.

[0007] Preferably, the side wall of the scraper is matched with the inner side wall of the preheating barrel. A cross bar is fixedly connected to the inner arc surface of the scraper. One end of the cross bar away from the scraper is fixedly connected to the outer side wall of the rotating cylinder. When the rotating cylinder rotates, the scraper can be driven to rotate through the cross bar. The inner wall of the preheating barrel can be cleaned through the scraper to avoid the material adhering to the inner wall of the preheating barrel. A motor is provided on the outer side wall of the preheating barrel. The output shaft end of the motor is fixedly connected with a first pulley. A synchronous belt is provided on the side wall of the first pulley. One end of the synchronous belt away from the first pulley is matched with a second pulley. A base is sleeved on the side wall of the motor. The side wall of the base is fixedly connected to the outer side wall of the preheating barrel. Starting the motor, the first pulley rotates under the action of the output shaft of the motor. The second pulley can be made to rotate through the synchronous belt. Furthermore, the rotating cylinder can be made to drive the stirring paddle to rotate to mix the thermoplastic elastomer raw material and other additives evenly.

[0008] Preferably, a fixed disk is arranged above the lifting seat. A vertical frame is fixedly connected to the side wall of the fixed disk. One end of the vertical frame far from the fixed disk is fixedly connected to the top surface of the preheating cylinder. The middle part of the bottom surface of the fixed disk is fixedly connected with a convex rod. The bottom end of the convex rod penetrates through the lifting seat, and the convex rod is slidably connected to the lifting seat. A spring is sleeved on the side wall of the convex rod. The top end of the spring is fixedly connected to the bottom surface of the fixed disk, and the bottom end of the spring is fixedly connected to the top surface of the lifting seat. A first convex plate is fixedly connected to the side wall of the lifting seat, and a second convex plate is fixedly connected to the side wall of the fixed disk. The first convex plate and the second convex plate correspond to each other. The top surface of the first convex plate is fixedly connected with a guide plate. The guide plate penetrates through the second convex plate. A fastening knob is inserted and threadedly connected to the side wall of the second convex plate, and the rod end of the fastening knob corresponds to and cooperates with the guide plate. When it is necessary to heat the thermoplastic elastomer raw material, the plug needs to be placed at the feed pipe. The feed pipe can be blocked by the plug to prevent the unheated raw material from entering the auger extrusion cylinder. After the heating of the thermoplastic elastomer raw material is completed, the first convex plate is pulled upward to make the lifting seat approach the fixed disk, so that the lifting rod moves in the rotating cylinder, and then the plug is separated from the feed pipe. At this time, the spring is in a compressed state. Tighten the fastening knob to limit and fix the guide plate, and then the adjusted lifting seat can be limited.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: The preheating cylinder can preheat the thermoplastic elastomer raw material to avoid insufficient heating during feeding and affecting the granulation effect. When it is necessary to heat the thermoplastic elastomer raw material, the feed pipe can be blocked by the plug to prevent the unheated raw material from entering the auger extrusion cylinder. When the preheating of the raw material is completed, the plug can be separated from the feed pipe to allow the heated material to enter the auger extrusion cylinder for granulation. And the rotating cylinder drives the stirring paddle and the scraper to rotate. The stirring paddle can mix the thermoplastic elastomer raw material and other additives evenly, and the scraper can clean the inner wall of the preheating cylinder to prevent the material from adhering to the inner wall of the preheating cylinder. Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0012] Figure 2This is a schematic diagram of the internal structure of the preheating cylinder of the present utility model.

[0013] Figure 3 This is an enlarged view of part A of the present utility model.

[0014] In the figure: 1, auger extrusion cylinder; 2, auger drive; 3, granulation cutter box; 4, discharge pipe; 5, support leg; 6, preheating cylinder; 7, fixing frame; 8, feed inlet; 9, motor; 10, base; 11, first pulley; 12, synchronous belt; 13, rotating cylinder; 14, second pulley; 15, stirring paddle; 16, cross bar; 17, scraper; 18, lifting rod; 19, plug; 20, lifting seat; 21, first convex plate; 22, guide plate; 23, convex rod; 24, fixing disk; 25, second convex plate; 26, fastening knob; 27, vertical frame; 28, feed pipe; 29, spring. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] Embodiment: As Figures 1-3 shown, the present utility model provides a granulating device for producing thermoplastic elastomers, including an auger extrusion cylinder 1. A preheating cylinder 6 is arranged at the input end of the auger extrusion cylinder 1. A granulation cutter box 3 is fixedly connected to the output end of the auger extrusion cylinder 1. The preheating cylinder 6 includes a feed pipe 28. The output end of the feed pipe 28 corresponds to and cooperates with the input end of the auger extrusion cylinder 1. A rotating cylinder 13 is rotatably connected through the middle of the top surface of the preheating cylinder 6. A second pulley 14 is fixedly sleeved on the upper part of the side wall of the rotating cylinder 13. A stirring paddle 15 is fixedly sleeved on the side wall of the rotating cylinder 13. A scraper 17 is arranged inside the preheating cylinder 6, and the scraper 17 is offset from the stirring paddle 15. A lifting rod 18 is rotatably connected inside the mouth of the rotating cylinder 13. A plug 19 is fixedly connected to the bottom end of the lifting rod 18. The plug 19 corresponds to and cooperates with the feed pipe 28. A lifting seat 20 is fixedly connected to the top end of the lifting rod 18.

[0017] A cutting knife is arranged inside the granulation cutter box 3. A discharge pipe 4 is fixedly connected through the bottom surface of the granulation cutter box 3. Support legs 5 are fixedly connected to the outer side wall of the auger extrusion cylinder 1. An auger is arranged inside the auger extrusion cylinder 1. An auger drive 2 is arranged at the end face of the auger extrusion cylinder 1. The output shaft of the auger drive 2 is fixed to the shaft end of the auger.

[0018] By adopting the above technical solution, an electric heater is arranged inside the preheating cylinder 6. Through the preheating cylinder 6, the raw material of thermoplastic elastomer can be preheated to avoid insufficient heating during feeding, which affects the granulation effect. The raw material falling from the preheating cylinder 6 will enter the auger extrusion cylinder 1. Starting the auger driver 2 can make the auger in the auger extrusion cylinder 1 rotate, and the material is melt-extruded through the auger extrusion cylinder 1. The material can be cut into particles through the granulation cutter box 3 to form TPE granulation products.

[0019] A fixing frame 7 is fixedly connected to the outer side wall of the preheating cylinder 6, and the bottom surface of the fixing frame 7 is fixedly connected to the top surface of the auger extrusion cylinder 1. A feed inlet 8 is arranged through the top surface of the preheating cylinder 6, and an end cover is detachably arranged at the port of the feed inlet 8.

[0020] By adopting the above technical solution, the raw material of thermoplastic elastomer and other additives, such as plasticizers and pigments, can be added into the preheating cylinder 6 through the feed inlet 8.

[0021] The side wall of the scraper 17 is matched with the inner side wall of the preheating cylinder 6. A cross bar 16 is fixedly connected to the inner arc surface of the scraper 17, and one end of the cross bar 16 far away from the scraper 17 is fixedly connected to the outer side wall of the rotating cylinder 13.

[0022] By adopting the above technical solution, when the rotating cylinder 13 rotates, the scraper 17 can be driven to rotate through the cross bar 16, and the inner wall of the preheating cylinder 6 can be cleaned by the scraper 17 to avoid the material adhering to the inner wall of the preheating cylinder 6.

[0023] A motor 9 is arranged on the outer side wall of the preheating cylinder 6. The output shaft end of the motor 9 is fixedly connected with a first pulley 11. A synchronous belt 12 is arranged on the side wall of the first pulley 11, and one end of the synchronous belt 12 far away from the first pulley 11 is matched with a second pulley 14.

[0024] By adopting the above technical solution, a base 10 is sleeved on the side wall of the motor 9, and the side wall of the base 10 is fixedly connected with the outer side wall of the preheating cylinder 6. Starting the motor 9, the first pulley 11 rotates under the action of the output shaft of the motor 9, and the second pulley 14 can be driven to rotate through the synchronous belt 12. Furthermore, the rotating cylinder 13 can drive the stirring paddle 15 to rotate to mix the raw material of thermoplastic elastomer and other additives evenly.

[0025] Above the lifting seat 20, there is a fixed disk 24. The side wall of the fixed disk 24 is fixedly connected with a vertical frame 27. One end of the vertical frame 27 far from the fixed disk 24 is fixedly connected with the top surface of the preheating cylinder 6. The middle part of the bottom surface of the fixed disk 24 is fixedly connected with a convex rod 23. The bottom end of the convex rod 23 penetrates through the lifting seat 20, and the convex rod 23 is slidably connected to the lifting seat 20. A spring 29 is sleeved on the side wall of the convex rod 23. The top end of the spring 29 is fixedly connected with the bottom surface of the fixed disk 24, and the bottom end of the spring 29 is fixedly connected with the top surface of the lifting seat 20.

[0026] By adopting the above technical solution, a first convex plate 21 is fixedly connected to the side wall of the lifting seat 20, and a second convex plate 25 is fixedly connected to the side wall of the fixed disk 24. The first convex plate 21 corresponds to the second convex plate 25. A guide plate 22 is fixedly connected to the top surface of the first convex plate 21. The guide plate 22 penetrates through the second convex plate 25. A fastening knob 26 is inserted and threadedly connected to the side wall of the second convex plate 25, and the rod end of the fastening knob 26 corresponds to and cooperates with the guide plate 22. When it is necessary to heat the thermoplastic elastomer raw material, the plug 19 needs to be located at the feed pipe 28. The feed pipe 28 can be blocked by the plug 19 to prevent the unheated raw material from entering the auger extrusion cylinder 1. After the heating of the thermoplastic elastomer raw material is completed, the first convex plate 21 is pulled upward, so that the lifting seat 20 approaches the fixed disk 24, and the lifting rod 18 moves in the rotating cylinder 13, thereby separating the plug 19 from the feed pipe 28. At this time, the spring 29 is in a compressed state. By tightening the fastening knob 26, the guide plate 22 can be limited and fixed, and then the adjusted lifting seat 20 can be limited.

[0027] Working principle: When the present utility model is in use, the thermoplastic elastomer raw material and other additives can be added into the preheating cylinder 6 through the feed port 8. The thermoplastic elastomer raw material can be preheated by the preheating cylinder 6 to avoid insufficient heating during feeding. At the same time, the motor 9 is started, and the first pulley 11 rotates under the action of the output shaft of the motor 9. The second pulley 14 can be rotated through the synchronous belt 12, and then the rotating cylinder 13 can drive the stirring paddle 15 to rotate to mix the thermoplastic elastomer raw material and other additives evenly;

[0028] After completing the heating of the thermoplastic elastomer raw material, pull the first convex plate 21 upward, so that the lifting seat 20 approaches the fixed disk 24, causing the lifting rod 18 to move within the rotating cylinder 13, and further separating the plug 19 from the feed pipe 28. At this time, the spring 29 is in a compressed state. Tighten the fastening knob 26 to limit and fix the guide plate 22, and then limit the adjusted lifting seat 20. The heated material enters the auger extrusion cylinder 1 through the feed pipe 28. Starting the auger driver 2 can make the auger in the auger extrusion cylinder 1 rotate, and the material is melted and extruded through the auger extrusion cylinder 1. The material can be cut into granular form through the granulation cutter box 3 to form TPE granulation products.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A granulation device for producing a thermoplastic elastomer, comprising an auger extruder (1), characterized in that: The input end of the auger extruder barrel (1) is provided with a preheating barrel (6), the output end of the auger extruder barrel (1) is fixedly connected to a granulating cutter box (3), the preheating barrel (6) comprises a feed pipe (28), the output end of the feed pipe (28) corresponds to and cooperates with the input end of the auger extruder barrel (1), a rotating barrel (13) is inserted and rotatably connected to the middle of the top surface of the preheating barrel (6), the upper part of the side wall of the rotating barrel (13) is fixedly sleeved with a second pulley (14), the A stirring paddle (15) is fixedly sleeved on the side wall of the rotating cylinder (13); a scraper (17) is arranged inside the preheating cylinder (6); and the scraper (17) and the stirring paddle (15) are offset from each other; a lifting rod (18) is rotatably connected to the cylinder mouth of the rotating cylinder (13); a plug (19) is fixedly connected to the bottom end of the lifting rod (18); the plug (19) corresponds to and cooperates with the feed pipe (28); and a lifting seat (20) is fixedly connected to the top end of the lifting rod (18).

2. A granulating device for producing a thermoplastic elastomer according to claim 1, characterized in that: A cutting knife is arranged inside the granulating cutting knife box (3), and a discharge pipe (4) is inserted and fixedly connected to the bottom surface of the granulating cutting knife box (3).

3. A granulation device for producing a thermoplastic elastomer according to claim 1, characterized in that: The outer wall of the auger extrusion barrel (1) is fixedly connected to a support leg (5), an auger is arranged inside the auger extrusion barrel (1), an auger driver (2) is arranged on the end face of the auger extrusion barrel (1), and an output shaft of the auger driver (2) is fixed to the shaft end of the auger.

4. A granulation device for producing a thermoplastic elastomer according to claim 1, characterized in that: The outer side wall of the preheating cylinder (6) is fixedly connected to a fixing frame (7), and the bottom surface of the fixing frame (7) is fixedly connected to the top surface of the auger extrusion cylinder (1).

5. A granulation device for producing a thermoplastic elastomer according to claim 1, characterized in that: A feed port (8) is provided through the top surface of the preheating cylinder (6), and a detachable end cover is provided at the end of the feed port (8).

6. A granulation device for producing a thermoplastic elastomer according to claim 1, characterized in that: The side wall of the scraper (17) matches the inner wall of the preheating cylinder (6); the inner arc surface of the scraper (17) is fixedly connected to a cross bar (16); and one end of the cross bar (16) away from the scraper (17) is fixedly connected to the outer wall of the rotating cylinder (13).

7. A granulation device for producing a thermoplastic elastomer according to claim 1, characterized in that: A motor (9) is disposed on the outer side wall of the preheating cylinder (6); an output shaft end of the motor (9) is fixedly connected to a first belt pulley (11); a synchronous belt (12) is disposed on the side wall of the first belt pulley (11); an end of the synchronous belt (12) away from the first belt pulley (11) cooperates with a second belt pulley (14).

8. A granulation device for producing a thermoplastic elastomer according to claim 1, characterized in that: A fixed plate (24) is arranged above the lifting seat (20), and a vertical frame (27) is fixedly connected to the side wall of the fixed plate (24), and one end of the vertical frame (27) away from the fixed plate (24) is fixedly connected to the top surface of the preheating cylinder (6), and a protruding rod (23) is fixedly connected to the middle part of the bottom surface of the fixed plate (24), and the bottom end of the protruding rod (23) passes through the lifting seat (20), and the protruding rod (23) is slidably connected to the lifting seat (20), and a spring (29) is sleeved on the side wall of the protruding rod (23), and the top end of the spring (29) is fixedly connected to the bottom surface of the fixed plate (24), and the bottom end of the spring (29) is fixedly connected to the top surface of the lifting seat (20).

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