A grinding and pulverizing device for synthetic rubber material
By introducing a cutting component and a screening chamber into the rubber grinding and pulverizing device, the problem of large pieces of rubber impacting the equipment was solved, thus achieving equipment durability and production continuity, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEI COUNTY DONGSHENG RUBBER & PLASTIC SEALS CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, the high elasticity and toughness of rubber materials cause strong impacts and friction when large pieces of material directly enter the grinding equipment, resulting in rapid wear of grinding components, material jamming, and equipment overload, which affects production continuity and increases maintenance costs.
Pre-shearing is performed using a cutting assembly, which includes a combination of moving and fixed cutting blades, along with a hydraulic telescopic rod and motor drive, to initially crush large pieces of rubber material, reduce the load on the main grinding mechanism, and enhance the screening effect through the elastic structure in the screening chamber.
It reduces the wear rate of main components, decreases equipment failures, extends service life, lowers maintenance costs, and ensures production continuity and energy efficiency.
Smart Images
Figure CN224588368U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber production technology, and in particular to a grinding and pulverizing device for synthetic rubber materials. Background Technology
[0002] When producing rubber, raw materials need to be crushed. Uncrushed large pieces of rubber or hard raw materials (such as solid additives) are hard and elastic. When they are directly fed into a mixing mill (such as an internal mixer or open mill), they require a longer time for shearing and kneading to soften and blend with other components. This not only prolongs the production cycle but also increases equipment energy consumption. Crushed raw materials have smaller particle sizes and are easier to soften. They can be quickly and evenly kneaded by mechanical force, shortening the mixing time and reducing the energy consumption per unit product.
[0003] A search revealed that the document with announcement number "CN222946001U" mentions that "this utility model belongs to the field of rubber production technology, specifically relating to a grinding and pulverizing device for synthetic rubber materials, including a pulverizing chamber. The top of the pulverizing chamber has a feed inlet, and the bottom of the pulverizing chamber has a discharge outlet. The interior of the pulverizing chamber is arranged from top to bottom as a coarse crushing chamber, a fine crushing chamber, a recovery chamber, and a discharge chamber, and each chamber is equipped with a sieve plate, namely a first sieve plate, a second sieve plate, and a third sieve plate. The outer wall of the coarse crushing chamber is equipped with a heating plate. The first sieve plate and the second sieve plate are connected to an air blowing device. The lower end of the third sieve plate is equipped with a screw for conveying materials." The spiral feeding mechanism has its output end connected to the fine crushing chamber. The coarse crushing chamber contains a coarse crushing mechanism, and the fine crushing chamber contains a fine crushing mechanism. The coarse crushing chamber, fine crushing chamber, and recovery chamber are sequentially arranged to crush the rubber raw material, ensuring a high crushing effect. However, rubber materials have high elasticity and toughness. Large pieces entering directly will cause strong impact and friction on the grinding components. Due to the lack of pre-shearing for initial crushing, the main mechanism needs to directly resist the toughness and dimensional resistance of the large pieces. Excessive load leads to accelerated wear of grinding components (such as blades and grinding teeth). Large pieces may become stuck due to the inability to be crushed quickly, causing motor overload, or even equipment shutdown or mechanical failure, affecting production continuity and increasing maintenance costs.
[0004] To address these issues, we provide a grinding and pulverizing device for synthetic rubber materials. Utility Model Content
[0005] The purpose of this invention is to provide a grinding and pulverizing device for synthetic rubber materials, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding and pulverizing device for synthetic rubber materials, comprising a main housing and a cutting assembly. The cutting assembly is installed at the top of the main housing. The cutting assembly includes a cutting chamber fixedly connected to the top of the main housing. A support frame is fixedly connected to the middle of the top of the cutting chamber. A movable platform is slidably connected to the outer side of the support frame via a slot. First hydraulic telescopic rods are installed at both ends of the movable platform. A bracket is fixedly connected to the bottom telescopic end of the first hydraulic telescopic rod. A connecting rod is slidably connected to the inner side of the bracket via a slot. A second hydraulic telescopic rod is installed on one side of the connecting rod. The fixed end of the second hydraulic telescopic rod is fixedly connected to the bracket. A movable cutting blade is fixedly connected to the bottom end of the connecting rod.
[0007] Preferably, the two sides of the moving platform are internally threaded with adjusting screws, and one end of the adjusting screw is connected to a first motor via a flat key.
[0008] Preferably, a guide rod is slidably connected to the inner side of the cutting chamber via a slot, and a third hydraulic telescopic rod is installed at both ends of the guide rod. The fixed end of the third hydraulic telescopic rod is fixedly connected to the outer wall of the main housing. An inclined support plate is installed on one side of the guide rod. A material guide frame is fixedly connected to both sides of the top of the cutting chamber, and a fixed cutting blade is fixedly connected to the bottom of the middle part of the cutting chamber.
[0009] Preferably, a first rotating shaft is rotatably connected to the upper inner side of the main housing, a cutting wheel is fixedly connected to the surface of the first rotating shaft, a second motor is connected to one end of the first rotating shaft by a flat key, a second rotating shaft is rotatably connected to the lower inner side of the main housing, a grinding roller is fixedly connected to the surface of the second rotating shaft, and a third motor is connected to one end of the second rotating shaft by a flat key.
[0010] Preferably, a screening chamber is fixedly connected to the bottom of the main housing, and sleeve rods are fixedly connected to both sides of the screening chamber. A spring is installed at the bottom inside of the sleeve rod, and an extension rod is abutted at the top of the spring. The outer side of the extension rod and the sleeve rod are slidably connected through a groove. A moving rod is fixedly connected to the top of the extension rod. The outer side of the moving rod and the screening chamber are slidably connected through a groove. A screen is fixedly connected to the bottom inside of the moving rod.
[0011] Preferably, a fourth hydraulic telescopic rod is installed at the upper interior of the screening chamber, and a baffle is fixedly connected to the telescopic end of the fourth hydraulic telescopic rod. A guide plate is fixedly connected to the lower interior of the screening chamber.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The cutting assembly provides a pre-shearing structure for large pieces of rubber material, initially crushing the rubber and reducing the contact area between the material and the main grinding mechanism, as well as the single-process load. This reduces the wear rate of the main components, minimizes malfunctions caused by overload (such as material jamming or motor overload), thereby extending the overall service life of the equipment, reducing maintenance costs, and ensuring continuous production. The material is introduced into the cutting chamber through the top inlet of the guide frame. The first hydraulic telescopic rod extends and retracts, driving the bracket to move vertically, causing the two sets of moving cutting blades to move vertically synchronously. The second hydraulic telescopic rod extends and retracts, driving the connecting rod to move horizontally, causing the two sets of moving cutting blades to move towards or away from each other. The first motor provides power to drive the adjusting screw to rotate, causing the moving table to translate within the support frame slot, adjusting the position of the moving cutting blades, thus enabling the moving cutting blades to cut the material. The fixed cutting blade provides some assistance. The third hydraulic telescopic rod extends and retracts, driving the guide rod to move within the cutting chamber slot, causing the inclined pallet to move, facilitating the material to fall into the main housing.
[0013] 2. When the material falls onto the screen in the screening bin for screening, the elastic structure composed of a sleeve rod, spring and extension rod causes the screen to move vertically back and forth when impacted by the material, providing a certain vibration to enhance the screening effect. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a schematic diagram of the internal connection structure of the cutting component proposed in this utility model; Figure 3 This is a schematic diagram of the internal connection structure of the main shell proposed in this utility model; Figure 4 This is a schematic diagram of the external connection structure of the screening chamber proposed in this utility model; Figure 5 This is a schematic diagram of the internal connection structure of the screening chamber proposed in this utility model.
[0015] In the diagram: 1. Main housing; 2. Cutting assembly; 201. Cutting chamber; 202. Support frame; 203. Moving platform; 204. First hydraulic telescopic rod; 205. Bracket; 206. Connecting rod; 207. Second hydraulic telescopic rod; 208. Moving cutting blade; 209. Adjusting screw; 210. First motor; 211. Guide rod; 212. Third hydraulic telescopic rod; 213. Inclined support plate; 214. Material guide frame; 215. Fixed cutting blade; 3. First rotating shaft; 4. Cutting wheel; 5. Second motor; 6. Second rotating shaft; 7. Grinding roller; 8. Third motor; 9. Screening chamber; 10. Sleeve rod; 11. Spring; 12. Extension rod; 13. Moving rod; 14. Screen; 15. Fourth hydraulic telescopic rod; 16. Baffle; 17. Guide plate. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0017] Please see Figure 1-5 As shown, a grinding and pulverizing device for synthetic rubber materials includes a main housing 1 and a cutting assembly 2. The cutting assembly 2 is installed at the top of the main housing 1. The cutting assembly 2 includes a cutting chamber 201 fixedly connected to the top of the main housing 1. A support frame 202 is fixedly connected to the middle of the top of the cutting chamber 201. A movable table 203 is slidably connected to the outer side of the support frame 202 through a slot. First hydraulic telescopic rods 204 are installed at both ends of the movable table 203. A bracket 205 is fixedly connected to the bottom telescopic end of the first hydraulic telescopic rod 204. A connecting rod is slidably connected to the inner side of the bracket 205 through a slot. 206. A second hydraulic telescopic rod 207 is installed on one side of the connecting rod 206. The fixed end of the second hydraulic telescopic rod 207 is fixedly connected to the bracket 205. A movable cutting blade 208 is fixedly connected to the bottom end of the connecting rod 206. The extension and retraction of the first hydraulic telescopic rod 204 drives the bracket 205 to move vertically, so that the two sets of movable cutting blades 208 move vertically synchronously. The extension and retraction of the second hydraulic telescopic rod 207 drives the connecting rod 206 to move horizontally, so that the two sets of movable cutting blades 208 move towards or away from each other. Adjusting the position of the movable cutting blades 208 allows them to cut materials.
[0018] Furthermore, the two sides of the moving table 203 are internally threaded with adjusting screws 209. One end of the adjusting screw 209 is connected to a first motor 210 via a flat key. The first motor 210 provides power to drive the adjusting screw 209 to rotate, causing the moving table 203 to move horizontally within the slot of the support frame 202, adjusting the position of the moving cutting blade 208, thereby enabling the moving cutting blade 208 to cut the material.
[0019] Furthermore, a guide rod 211 is slidably connected to the inner side of the cutting chamber 201 via a slot. A third hydraulic telescopic rod 212 is installed at both ends of the guide rod 211. The fixed end of the third hydraulic telescopic rod 212 is fixedly connected to the outer wall of the main housing 1. An inclined support plate 213 is installed on one side of the guide rod 211. A guide frame 214 is fixedly connected to both sides of the top of the cutting chamber 201. A fixed cutting blade 215 is fixedly connected to the bottom of the middle part of the cutting chamber 201. The two sets of inclined support plates 213 and the fixed cutting blade 215 form a relatively closed structure to support the material. The fixed cutting blade 215 provides certain cutting assistance. The extension and retraction of the third hydraulic telescopic rod 212 drives the guide rod 211 to move in the slot of the cutting chamber 201, so that the inclined support plate 213 moves, making it convenient for the material to fall into the interior of the main housing 1.
[0020] Furthermore, a first rotating shaft 3 is rotatably connected to the upper inner side of the main housing 1, a cutting wheel 4 is fixedly connected to the surface of the first rotating shaft 3, a second motor 5 is connected to one end of the first rotating shaft 3 by a key, a second rotating shaft 6 is rotatably connected to the lower inner side of the main housing 1, a grinding roller 7 is fixedly connected to the surface of the second rotating shaft 6, and a third motor 8 is connected to one end of the second rotating shaft 6 by a key. The second motor 5 provides power to drive the first rotating shaft 3 to rotate, so that the cutting wheel 4 crushes and cuts the sheared material. The third motor 8 provides power to drive the second rotating shaft 6 to rotate, so that the grinding roller 7 grinds and pulverizes the crushed material. The multi-stage pulverization structure reduces the load.
[0021] Furthermore, a screening chamber 9 is fixedly connected to the bottom of the main housing 1, and sleeve rods 10 are fixedly connected to both sides of the screening chamber 9. A spring 11 is installed at the bottom inside of the sleeve rod 10, and an extension rod 12 is abutted at the top of the spring 11. The outer side of the extension rod 12 is slidably connected to the sleeve rod 10 through a slot. A moving rod 13 is fixedly connected to the top of the extension rod 12. The outer side of the moving rod 13 is slidably connected to the screening chamber 9 through a slot. A screen 14 is fixedly connected to the bottom inside the moving rod 13. When the material falls onto the screen 14 in the screening chamber 9 for screening, the elastic structure composed of the sleeve rod 10, spring 11, extension rod 12 and moving rod 13 causes the screen 14 to move vertically back and forth when impacted by the material, providing a certain vibration to enhance the screening effect.
[0022] Furthermore, a fourth hydraulic telescopic rod 15 is installed on the upper part of the screening chamber 9. A baffle 16 is fixedly connected to the telescopic end of the fourth hydraulic telescopic rod 15. A guide plate 17 is fixedly connected to the lower part of the screening chamber 9. The material falls onto the screen 14 in the screening chamber 9 for screening. After screening, the material falls onto the guide plate 17 and is discharged to the outside. After the unscreened material accumulates, the baffle 16 is removed from the bottom side of the screen 14 by the extension and retraction of the fourth hydraulic telescopic rod 15, so that the unscreened material can be discharged to the outside through another outlet.
[0023] Working principle: In use, firstly, the material is introduced into the cutting chamber 201 through the top inlet of the guide frame 214. The first hydraulic telescopic rod 204 extends and retracts, driving the bracket 205 to move vertically, so that the two sets of moving cutting blades 208 move vertically synchronously. The second hydraulic telescopic rod 207 extends and retracts, driving the connecting rod 206 to move horizontally, so that the two sets of moving cutting blades 208 move towards or away from each other. The first motor 210 provides power to drive the adjusting screw 209 to rotate, so that the moving table 203 moves horizontally in the slot of the support frame 202, adjusting the position of the moving cutting blades 208, so that the moving cutting blades 208 cut the material. Secondly, the fixed cutting blade 215 provides certain assistance. The third hydraulic telescopic rod 212 extends and retracts, driving the guide rod 211 to move in the slot of the cutting chamber 201, so that the inclined support plate 213 moves, facilitating the material to fall into the main housing 1. The second motor 5 provides power to drive the first The rotating shaft 3 rotates, causing the cutting wheel 4 to crush and cut the sheared material. The third motor 8 provides power to drive the second rotating shaft 6 to rotate, causing the grinding roller 7 to grind and pulverize the crushed material. In the third step, the material falls onto the screen 14 in the screening chamber 9 for screening. After screening, the material falls onto the guide plate 17 and is discharged to the outside. When the material falls onto the screen 14 in the screening chamber 9 for screening, the elastic structure composed of the sleeve rod 10, spring 11, extension rod 12 and moving rod 13 causes the screen 14 to move vertically back and forth when impacted by the material, providing a certain vibration to enhance the screening effect. In the fourth step, after the unscreened material accumulates, the fourth hydraulic telescopic rod 15 extends and retracts, causing the baffle 16 to remove the closure on one side of the bottom of the screen 14, making it convenient for the unscreened material to be discharged to the outside through another outlet. This completes the use of a synthetic rubber material grinding and pulverizing device.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A grinding pulverizing device for synthetic rubber material, comprising a main housing (1) and a cutting assembly (2), characterized in that, A cutting assembly (2) is installed at the top of the main housing (1). The cutting assembly (2) includes a cutting chamber (201) fixedly connected to the top of the main housing (1). A support frame (202) is fixedly connected to the middle of the top of the cutting chamber (201). A moving platform (203) is slidably connected to the outside of the support frame (202) through a slot. A first hydraulic telescopic rod (204) is installed at both ends of the moving platform (203). A bracket (205) is fixedly connected to the bottom telescopic end of the first hydraulic telescopic rod (204). A connecting rod (206) is slidably connected to the inside of the bracket (205) through a slot. A second hydraulic telescopic rod (207) is installed on one side of the connecting rod (206). The fixed end of the second hydraulic telescopic rod (207) is fixedly connected to the bracket (205). A movable cutting blade (208) is fixedly connected to the bottom end of the connecting rod (206).
2. The rubber compound grinding device according to claim 1, wherein The movable platform (203) has internal threaded connections of adjusting screws (209) on both sides, and one end of the adjusting screws (209) is connected to a first motor (210) via a flat key.
3. The rubber compound grinding device according to claim 1, wherein The inner side of the cutting chamber (201) is slidably connected to a guide rod (211) via a slot. The two ends of the guide rod (211) are equipped with a third hydraulic telescopic rod (212). The fixed end of the third hydraulic telescopic rod (212) is fixedly connected to the outer wall of the main housing (1). An inclined support plate (213) is installed on one side of the guide rod (211). The top two sides of the cutting chamber (201) are fixedly connected to a guide frame (214). The bottom middle part of the cutting chamber (201) is fixedly connected to a fixed cutting blade (215).
4. The rubber compound grinding device according to claim 1, wherein The upper inner side of the main housing (1) is rotatably connected to a first rotating shaft (3), a cutting wheel (4) is fixedly connected to the surface of the first rotating shaft (3), a second motor (5) is connected to one end of the first rotating shaft (3) by a flat key, a second rotating shaft (6) is rotatably connected to the lower inner side of the main housing (1), a grinding roller (7) is fixedly connected to the surface of the second rotating shaft (6), and a third motor (8) is connected to one end of the second rotating shaft (6) by a flat key.
5. The rubber compound grinding device according to claim 1, wherein The bottom of the main housing (1) is fixedly connected to a screening chamber (9), and sleeve rods (10) are fixedly connected to both sides of the screening chamber (9). A spring (11) is installed at the bottom inside of the sleeve rod (10), and an extension rod (12) is abutted at the top of the spring (11). The outer side of the extension rod (12) and the sleeve rod (10) are slidably connected through a slot. A moving rod (13) is fixedly connected to the top of the extension rod (12), and the outer side of the moving rod (13) and the screening chamber (9) are slidably connected through a slot. A screen (14) is fixedly connected to the bottom inside of the moving rod (13).
6. The rubber compound grinding device according to claim 5, wherein A fourth hydraulic telescopic rod (15) is installed on the upper part of the screening chamber (9). A baffle (16) is fixedly connected to the telescopic end of the fourth hydraulic telescopic rod (15). A guide plate (17) is fixedly connected to the lower part of the screening chamber (9).