Powder grinding device for plastic powder grinding

Abstract

The utility model relates to the technical field of grinding devices, in particular to a grinding device for plastic grinding, which comprises a processing barrel and a blanking disc, the blanking disc is fixedly arranged on the top surface of the processing barrel, a mounting baffle is fixedly arranged at the bottom end of the blanking disc, and a sealing strip is fixedly arranged at the top end of the front surface of the mounting baffle. The bottom end of the sealing strip is detachably and slidably connected with a grinding cylinder. A grinding roller arranged in the grinding cylinder in a sleeved mode is rotationally arranged on the front face of the mounting baffle. A supporting mechanism penetrating through the treatment barrel is arranged on the front face of the grinding barrel. Through the detachable arrangement of the grinding cylinder, when the grinding cylinder is sunken or the aperture of the grinding cylinder is changed, the grinding cylinder is convenient to replace, the situation that the size of ground powder is not uniform during grinding is prevented, the grinding cylinder can be detached and replaced in time after being used for a long time, the service life of the device is prolonged, and the grinding efficiency is improved. The situation that the whole equipment is replaced after the hole diameter of the grinding cylinder is changed is avoided, the cost is reduced, the use efficiency is improved, and the plastic grinding effect can be improved by replacing the grinding cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a grinding device used for grinding plastics. Background Art

[0002] The grinding device is referred to as a grinding machine, which can be used for high-speed grinding of plastic profiles. Among them, plastic is a high molecular compound polymerized by addition polymerization or condensation polymerization using monomers as raw materials. A grinding device is needed to crush and grind plastic, but the plastic grinding devices used in the prior art still have defects.

[0003] For example, a plastic grinding device disclosed in the authorization announcement number CN210700477U has the following working principle: "Start the crushing motor, the crushing motor drives the crushing shaft to drive the crushing roller to rotate, the crushing roller drives the crushing knife fixedly connected to the surface to crush the passing plastic particles, and the crushed plastic particles fall into the filter shell through the discharge shell, start the grinding motor, the grinding motor drives the grinding shaft to drive the grinding roller to rotate, the grinding roller grinds the contacted plastic particles, and through the cooperation between the grinding roller and the filter shell, it is convenient to grind the plastic particles, and then start the servo motor, the servo motor drives the rotating shaft to drive the connecting rod to rotate, the connecting rod drives the spring to drive the elastic ball to rotate, and when the elastic ball contacts the filter shell, the elastic ball will knock on the filter shell, causing vibration to the surface of the filter shell, thereby facilitating the filter holes on the surface of the filter shell to discharge the plastic powder, and the plastic powder is discharged into the storage drawer for storage, which is convenient for operation".

[0004] Among them, the plastic is mainly ground by a grinding roller, and the powder after the plastic is ground will be discharged through the filter hole. However, during long-term use, since the grinding process of the plastic requires the grinding roller to rotate in the filter shell, long-term use will cause the aperture of the filter hole opened on the filter shell to change. Once the aperture of the filter hole changes, it will affect the grinding effect of the plastic, resulting in a larger particle size of the discharged powder. In addition, during the grinding process, the elastic ball will be in the process of knocking the filter shell. Long-term use will cause the filter shell to be dented, which will also affect the grinding effect of the plastic. Therefore, a plastic grinding device that is easy to replace the filter shell is urgently needed. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides the following technical solutions:

[0006] A grinding device for grinding plastics comprises a processing cylinder and a feeding tray, wherein the feeding tray is fixedly arranged on the top surface of the processing cylinder, and a mounting baffle is fixedly arranged on the bottom end of the feeding tray, a seal is fixedly arranged on the top of the front face of the mounting baffle, and a grinding cylinder is detachably and slidably connected to the bottom end of the seal; a grinding roller sleeved in the grinding cylinder is rotatably arranged on the front face of the mounting baffle; and a supporting mechanism penetrating the processing cylinder is arranged on the front face of the grinding cylinder.

[0007] As an improvement of the above technical solution, the grinding cylinder is a cylindrical structure, a limiting slide plate of a U-shaped structure is fixedly provided on the top surface of the grinding cylinder, and a sliding groove for the limiting slide plate to be inserted and slid is provided on the bottom surface of the sealing strip.

[0008] As an improvement of the above technical solution, the supporting mechanism includes a connecting rod and a sealing plate, one end of the connecting rod is fixedly connected to the grinding barrel, and the other end is rotatably connected to the sealing plate, the circumscribed circle radius of the sealing plate is larger than the circumscribed circle radius of the grinding barrel, the sealing plate is threadedly connected to the processing barrel, and the inner wall of the grinding barrel is rotatably provided with a limiting rod inserted in the grinding roller.

[0009] As an improvement of the above technical solution, fine holes for material leakage are evenly opened on the grinding cylinder.

[0010] As an improvement of the above technical solution, the processing cylinder is provided with a power mechanism for driving the grinding roller to rotate, and the power mechanism includes a rotating motor and a rotating shaft. The rotating motor is fixedly arranged on the processing cylinder, and the power output end of the rotating motor is fixedly connected to the rotating shaft. One end of the rotating shaft passes through the mounting baffle and is fixedly connected to the grinding roller, and the rotating shaft is rotatably connected to the mounting baffle.

[0011] As an improvement of the above technical solution, a vibration-linking mechanism is arranged on the back of the mounting baffle, and the vibration-linking mechanism includes a vibration ring, a guide plate, a rotating plate, a spring and a shock block. The vibration ring is a ring-shaped structure fixedly arranged on the back of the mounting baffle, and the guide plate is an arc-shaped structure fixedly arranged on the inner wall of the vibration ring, and there are multiple groups of guide plates. The rotating plate is sleeved in the vibration ring, and the rotating plate is fixedly connected to the periphery of the rotating shaft. The periphery of the rotating plate is fixedly connected to the spring, and one end of the spring is fixedly connected to the shock block, and the shock block is a hemispherical structure.

[0012] Beneficial effects of the utility model:

[0013] Through the detachable setting of the grinding cylinder, when the grinding cylinder becomes dented or the aperture changes, it is convenient to replace the grinding cylinder to prevent the situation that the grinding size is different during grinding. After long-term use, the grinding cylinder can be disassembled and replaced in time to improve the service life of the device and avoid replacing the entire equipment after the aperture of the grinding cylinder changes, thereby reducing costs and improving utilization efficiency. In addition, the grinding effect of plastics can be improved by replacing the grinding cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0015] Figure 2 This is a rear-view stereoscopic structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the cutaway structure of the processing box of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the grinding cylinder and grinding roller of the utility model;

[0018] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure of the middle A area;

[0019] Figure 6 This is a schematic diagram of the baffle structure of the utility model.

[0020] Figure numerals: 1. Processing cylinder; 2. Feeding tray; 3. Grinding cylinder; 31. Leakage hole; 32. Connecting rod; 321. Sealing plate; 33. Limiting slide plate; 4. Mounting baffle; 41. Grinding roller; 42. Rotating motor; 421. Rotating shaft; 43. Seal; 44. Vibrating ring; 441. Guide plate; 5. Rotating plate; 51. Spring; 511. Shock block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0022] Please refer to Figure 1-Figure 6 As shown, the utility model provides a grinding device for grinding plastics, including a processing cylinder 1 and a feed tray 2, the feed tray 2 is fixedly arranged on the top surface of the processing cylinder 1, and a mounting baffle 4 is fixedly arranged at the bottom end of the feed tray 2, a seal 43 is fixedly arranged at the top end of the front side of the mounting baffle 4, and the bottom end of the seal 43 is detachably slidably connected to the grinding cylinder 3.

[0023] A grinding roller 41 which is sleeved in the grinding cylinder 3 is rotatably arranged on the front side of the mounting baffle 4 .

[0024] A supporting mechanism penetrating through the processing cylinder 1 is arranged on the front side of the grinding cylinder 3 .

[0025] In the present case, the bottom surface of the material discharge tray 2 is located in the processing cylinder 1, and the material discharge tray 2 is in an inclined state to facilitate material discharge. At the same time, a mounting baffle 4 is fixedly provided at the bottom end of the back side of the material discharge tray 2, and seals 43 are fixedly provided on both sides of the top of the front side of the mounting baffle 4. A grinding cylinder 3 is detachably slidably provided on the bottom surface of the seal 43. A grinding roller 41 is sleeved in the grinding cylinder 3, and a supporting mechanism that passes through the processing cylinder 1 is provided on the front side of the grinding cylinder 3 to facilitate supporting the grinding cylinder 3 and sliding the top surface of the grinding cylinder 3 under the seal 43, so as to facilitate the disassembly and assembly of the grinding cylinder 3.

[0026] Through the detachable setting of the grinding cylinder 3, when the grinding cylinder 3 is dented or the aperture changes, it is convenient to replace the grinding cylinder 3 to prevent the situation that the grinding size is different during grinding. After long-term use, the grinding cylinder 3 can be disassembled and replaced in time to improve the service life of the device and avoid replacing the entire equipment after the aperture of the grinding cylinder 3 changes, thereby reducing costs and improving utilization efficiency. In addition, the replacement of the grinding cylinder 3 can improve the grinding effect of plastics.

[0027] The grinding cylinder 3 is a cylindrical structure, and a U-shaped limiting slide plate 33 is fixedly provided on the top surface of the grinding cylinder 3 , and a sliding groove for the limiting slide plate 33 to be inserted and slid is provided on the bottom surface of the sealing strip 43 .

[0028] The limiting slide plate 33 is a U-shaped structure, and the limiting slide plate 33 is sealingly slidably inserted in the slide groove below the seal 43. After the limiting slide plate 33 is inserted into the seal 43, the back of the grinding cylinder 3 is sealed and connected to the mounting baffle 4, and the limiting slide plate 33 and the seal 43 can be sealed between the grinding cylinder 3 and the unloading plate 2, ensuring that the joint is in a sealed state during grinding, and no leakage occurs. The sliding connection method is used to facilitate the disassembly and assembly of the grinding cylinder 3.

[0029] The supporting mechanism includes a connecting rod 32 and a sealing plate 321. One end of the connecting rod 32 is fixedly connected to the grinding cylinder 3, and the other end is rotatably connected to the sealing plate 321. The circumscribed circle radius of the sealing plate 321 is larger than the circumscribed circle radius of the grinding cylinder 3. The sealing plate 321 is threadedly connected to the processing cylinder 1. The inner wall of the grinding cylinder 3 is rotatably provided with a limiting rod inserted in the grinding roller 41.

[0030] Through the arrangement of the connecting rod 32 and the sealing plate 321, when the grinding cylinder 3 needs to be replaced, the sealing plate 321 can be easily removed from the processing cylinder 1 by rotating the sealing plate 321, and then the sealing plate 321 is pulled to facilitate pulling the grinding cylinder 3 outward, and then the grinding cylinder 3 is removed and replaced. When installation is required, another set of intact grinding cylinders 3 is inserted into the processing cylinder 1, and then the sealing plate 321 is pushed, so that the limit rod can be inserted into the grinding roller 41, and then the sealing plate 321 is rotated so that the sealing plate 321 is threadedly connected to the processing cylinder 1. When the sealing plate 321 is rotated, the connecting rod 32 can be pushed to move, so as to facilitate the interference between the grinding cylinder 3 and the installation baffle 4, thereby increasing the sealing performance.

[0031] The grinding cylinder 3 is evenly provided with fine holes 31 for leaking materials.

[0032] By setting the leakage holes 31, after the plastic is introduced through the discharge tray 2, it is first pre-processed and crushed by the crushing mechanism set in the discharge tray 2, wherein the crushing mechanism belongs to the prior art and is not drawn in the utility model. The crushed plastic falls into the grinding cylinder 3, and the crushed plastic is ground by the rotation of the grinding roller 41. The plastic powder that meets the requirements of the plastic grinding process will be discharged through the leakage holes 31. The leakage holes 31 are convenient for discharging the plastic powder that has passed the grinding process.

[0033] The processing drum 1 is provided with a power mechanism for driving the grinding roller 41 to rotate, and the power mechanism includes a rotating motor 42 and a rotating shaft 421. The rotating motor 42 is fixedly arranged on the processing drum 1, and the power output end of the rotating motor 42 is fixedly connected to the rotating shaft 421. One end of the rotating shaft 421 passes through the mounting baffle 4 and is fixedly connected to the grinding roller 41, and the rotating shaft 421 is rotatably connected to the mounting baffle 4.

[0034] The starting of the rotating motor 42 can drive the rotating shaft 421 to rotate, and the rotating shaft 421 drives the grinding roller 41 to rotate. The rotation of the grinding roller 41 can grind the plastic in the grinding cylinder 3.

[0035] A vibration coupling mechanism is arranged on the back side of the mounting baffle 4, and the vibration coupling mechanism includes a vibration ring 44, a guide plate 441, a rotating plate 5, a spring 51 and a shock block 511. The vibration ring 44 is a ring-shaped structure fixedly arranged on the back side of the mounting baffle 4, the guide plate 441 is an arc-shaped structure fixedly arranged on the inner wall of the vibration ring 44, and there are multiple groups of guide plates 441. The rotating plate 5 is sleeved in the vibration ring 44, and the rotating plate 5 is fixedly connected to the periphery of the rotating shaft 421. The periphery of the rotating plate 5 is fixedly connected to the spring 51, and one end of the spring 51 is fixedly connected to the shock block 511. The shock block 511 is a hemispherical structure.

[0036] The grinding roller 41 is driven to rotate by the rotating shaft 421, and the rotating plate 5 is driven to rotate. The rotating plate 5 drives the spring 51 and the shock block 511 to rotate. The structure of the guide plate 441 is as follows: Figure 6As shown, the thickness of one side is greater than that of the other side. When the shock block 511 rotates, it can first pass through the thinner side of the guide plate 441. As the shock block 511 rotates, the spring 51 will be in a compressed state. When the shock block 511 slides over the thicker side of the guide plate 441, the spring 51 releases its elastic force, causing the shock block 511 to knock on the vibration ring 44, causing the vibration ring 44 to vibrate. The vibration ring 44 can transmit the vibration force to the mounting baffle 4, and the mounting baffle 4 transmits the vibration force to the grinding cylinder 3 that conflicts with the mounting baffle 4, thereby putting the grinding cylinder 3 in a vibrating state, avoiding plastic clogging in the leakage pores 31 during the grinding process, and completing the vibration of the grinding cylinder 3 while the rotating shaft 421 is rotating, without having to set up a motor again to knock on the grinding cylinder 3, thereby reducing the consumption of electric energy and improving the use efficiency.

[0037] The above are only embodiments of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A grinding device for grinding plastics, comprising a processing cylinder (1) and a feeding tray (2), wherein the feeding tray (2) is fixedly arranged on the top surface of the processing cylinder (1), and a mounting baffle (4) is fixedly arranged at the bottom end of the feeding tray (2), characterized in that: A seal strip (43) is fixedly arranged at the top of the front face of the mounting baffle (4), and a grinding cylinder (3) is detachably slidably connected to the bottom end of the seal strip (43); The front side of the mounting baffle (4) is rotatably provided with a grinding roller (41) sleeved in the grinding cylinder (3); The front side of the grinding cylinder (3) is provided with a supporting mechanism which penetrates the processing cylinder (1).

2. A grinding device for grinding plastic according to claim 1, characterized in that: The grinding cylinder (3) is of cylindrical structure, a limiting slide plate (33) of U-shaped structure is fixedly arranged on the top surface of the grinding cylinder (3), and a sliding groove for the limiting slide plate (33) to be inserted and slid is provided on the bottom surface of the sealing strip (43).

3. A grinding device for grinding plastic according to claim 1, characterized in that: The supporting mechanism comprises a connecting rod (32) and a sealing plate (321); one end of the connecting rod (32) is fixedly connected to the grinding cylinder (3), and the other end is rotatably connected to the sealing plate (321); the radius of the circumscribed circle of the sealing plate (321) is greater than the radius of the circumscribed circle of the grinding cylinder (3); the sealing plate (321) is threadedly connected to the processing cylinder (1); and a limiting rod which is rotatably inserted into the grinding roller (41) is provided on the inner wall of the grinding cylinder (3).

4. A grinding device for grinding plastic according to claim 1, characterized in that: The grinding cylinder (3) is evenly provided with fine holes (31) for leaking materials.

5. A grinding device for grinding plastic according to claim 1, characterized in that: The processing cylinder (1) is provided with a power mechanism for driving the grinding roller (41) to rotate, the power mechanism comprising a rotating motor (42) and a rotating shaft (421), the rotating motor (42) being fixedly arranged on the processing cylinder (1), the power output end of the rotating motor (42) being fixedly connected to the rotating shaft (421), one end of the rotating shaft (421) passing through the mounting baffle (4) and being fixedly connected to the grinding roller (41), and the rotating shaft (421) being rotationally connected to the mounting baffle (4).

6. A grinding device for grinding plastic according to claim 5, characterized in that: A vibration linkage mechanism is arranged on the back of the mounting baffle (4), and the vibration linkage mechanism comprises a vibration ring (44), a guide plate (441), a rotating plate (5), a spring (51) and a shock block (511); the vibration ring (44) is in an annular structure and is fixedly arranged on the back of the mounting baffle (4); the guide plate (441) is in an arc-shaped structure and is fixedly arranged on the inner wall of the vibration ring (44); and a plurality of guide plates (441) are arranged; the rotating plate (5) is sleeved in the vibration ring (44); the rotating plate (5) is fixedly connected to the periphery of the rotating shaft (421); the periphery of the rotating plate (5) is fixedly connected to the spring (51); one end of the spring (51) is fixedly connected to the shock block (511); and the shock block (511) is in a hemispherical structure.

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