Solid material crushing and feeding device for coating production

Abstract

The invention relates to the technical field of grinding and smashing, in particular to a solid material smashing and feeding device for coating production, which comprises a smashing tank, a smashing mechanism, a screening mechanism, a material pumping mechanism and a collecting mechanism, through the improved smashing mechanism, materials firstly enter a smashing cavity of the smashing tank to be smashed. And the crushed materials pass through a screening mechanism, and parts meeting the target particle diameter are screened out and are smoothly discharged through a discharge port. And for the materials which do not reach the qualified particle diameter, the materials fall into the material returning cavity and are pumped into the crushing cavity again by the material pumping mechanism to be crushed again. The process is continuously carried out until the particle sizes of all the materials reach the preset standard, and the qualified materials can be discharged through the discharge port.

Description

Technical Field

[0001] The invention relates to the technical field of grinding and pulverizing, and in particular to a solid material pulverizing and feeding device for coating production. Background Art

[0002] In the coating production process, grinding equipment is often used to finely grind the fixed raw materials of the coating to achieve the ideal particle size and distribution. However, the grinding equipment often grinds the material multiple times during operation. This is mainly manifested in the repeated force of the raw material particles during the grinding process, resulting in unnecessary continuous reduction of the particle size and excessive grinding of the material. This phenomenon not only wastes grinding time and energy, but also affects the grinding efficiency. What is more serious is that some materials that have reached the qualified particle diameter may be over-grinded to a particle size that does not meet the production requirements, thereby affecting the quality and performance of the coating.

[0003] In addition, over-grinding may also lead to uneven particle distribution of the material, causing performance fluctuations or unstable quality of the coating during subsequent use. To avoid this problem, the grinding time and grinding intensity must be accurately controlled, and the appropriate grinding method must be selected according to the characteristics of the material. Optimizing the design and operation process of the grinding equipment and reducing the impact of multiple grinding on the raw materials can effectively improve production efficiency and reduce costs.

[0004] Chinese patent publication number CN117983373B discloses a raw material grinding device for the production of fire-retardant coatings, including a base plate, on which a grinding mechanism for grinding the raw materials of the fire-retardant coatings is disposed; the grinding mechanism includes a grinding assembly rotatably disposed on the base plate, and a feeding assembly cooperating with the grinding assembly is disposed on the base plate.

[0005] The grinding device uses a scraper groove and a scraper blade to scrape the compacted fire-retardant coating raw materials and crush them into particles to achieve the grinding purpose. The fire-retardant coating raw materials only need to be scraped once to complete the grinding and crushing of the fire-retardant coating raw materials. However, when the block coating material is placed in the raw material box, the pushing plate cannot effectively push the material into the pores or grinding area, so that the material cannot fully contact the grinding medium. This limits the effect of the pushing plate when processing block materials, and the ideal grinding and crushing effect cannot be achieved. Since the design of the pushing plate is mainly for granular or fluid materials, for block materials with hard shapes and large volumes, the thrust of the pushing plate is not enough to push them into the pores, resulting in the failure of the material to be effectively decomposed, affecting the efficiency and effect of the entire grinding process. Summary of the invention

[0006] In view of the problems of the prior art, a solid material crushing and feeding device for paint production is provided, which can crush the material passing through the crushing chamber of the crushing tank through a crushing mechanism, and make the crushed material pass through a screening mechanism. The material that has reached the particle diameter can be discharged through a discharge port, while the material that does not reach the qualified particle diameter falls into the return cavity and is re-pumped into the crushing cavity through a pumping mechanism, so that it is crushed again until it reaches the qualified particle diameter and is discharged through the discharge port. This solves the problem that the existing device cannot discharge the material that meets the particle diameter in time when grinding block-shaped paint materials, which will reduce the grinding efficiency and affect the uneven distribution of material particles.

[0007] In order to solve the problems of the prior art, the present invention provides a solid material crushing and feeding device for paint production, comprising a crushing tank, a crushing mechanism, a screening mechanism, a pumping mechanism and a collecting mechanism, the inner cavity of the crushing tank is provided with a crushing chamber, a screening chamber and a return chamber in sequence from top to bottom, the top of the crushing tank is provided with a feeding port, and the peripheral wall of the screening chamber is provided with a discharge port connected to the outer diameter; the crushing mechanism is arranged in the crushing chamber, and the crushing mechanism is used to crush the material passing through the crushing chamber; the screening mechanism is arranged in the screening chamber, and the screening mechanism has a filtering surface for the material to slide on it, and the filtering surface is evenly provided with filtering holes, and the bottom end of the filtering surface is provided with a guide cavity connected to the discharge port; the pumping mechanism is arranged in the crushing tank, and the pumping mechanism has a pumping port extending into the return chamber and a return port extending into the crushing chamber, and the pumping mechanism is used to lift the material at the pumping port upward to the return port and feed it into the crushing chamber; the collecting mechanism is arranged outside the crushing tank, and the collecting mechanism has a collecting chamber connected to the discharge port, and the bottom of the collecting chamber is provided with a discharge port for discharging the crushed material.

[0008] Preferably, the pumping mechanism comprises a pumping pipe, a pumping shaft and a pumping motor, the pumping pipe is coaxially arranged in the crushing tank, the top end of the pumping pipe is connected to the crushing chamber, and the bottom end of the pumping pipe is connected to the bottom end of the return chamber; the pumping shaft is coaxially rotatably arranged in the pumping pipe, the bottom end of the pumping shaft is rotatably connected to the bottom end of the return chamber, the top end of the pumping shaft passes through the top end of the crushing chamber and is rotatably connected thereto, a coaxial pumping spiral blade is arranged on the circumferential surface of the pumping shaft, the bottom end of the pumping spiral blade extends into the return chamber, and the top end of the pumping spiral blade extends into the crushing chamber; the pumping motor is arranged at the top end of the crushing tank, and the output shaft of the pumping motor is drivingly connected to the top end of the pumping shaft.

[0009] Preferably, the pumping pipe is coaxially rotatably arranged in the crushing tank, and the crushing mechanism includes a fixed blade fixedly arranged on the inner wall of the crushing chamber and a rotating blade fixedly arranged on the outer peripheral wall of the pumping pipe, and the rotating blade crushes the material passing through the crushing chamber when it rotates relative to the fixed blade; the pumping mechanism also includes a driving gear, a driven gear and an inner gear ring, the driving gear is coaxially fixedly arranged on the pumping shaft, the driven gear is rotatably arranged at the top of the crushing chamber, the driven gear is meshed with the driving gear, a transmission bracket is arranged at the top of the pumping pipe, the inner gear ring is fixedly arranged at the top of the transmission bracket, the inner gear ring is meshed with the driven gear, and a return port is formed between the transmission bracket and the top of the pumping pipe.

[0010] Preferably, the crushing mechanism also includes a fixed frame and a rotating frame, the fixed frame includes an outer fixed ring coaxially fixedly arranged on the inner wall of the crushing chamber and an inner fixed ring rotatably connected to the outer peripheral wall of the pumping pipe, and the fixed blades are arranged between the inner peripheral wall of the outer fixed ring and the outer peripheral wall of the inner fixed ring along the circumferential direction of the pumping shaft; the rotating frame includes an inner rotating ring coaxially fixedly arranged on the outer peripheral wall of the pumping pipe and an outer rotating ring coaxially rotatably arranged on the inner peripheral wall of the crushing chamber, and the rotating blades are arranged between the outer peripheral wall of the inner rotating ring and the inner peripheral wall of the outer rotating ring along the circumferential direction of the pumping shaft.

[0011] Preferably, an inner ring groove is provided at the bottom end of the outer circumferential wall of the inner rotating ring, an outer ring groove is provided at the bottom end of the inner circumferential wall of the outer rotating ring, an outer lifting ring abutting against the top end of the outer fixed ring is provided in the outer ring groove, an outer elastic element is provided between the top end of the outer lifting ring and the top end of the outer ring groove, a reciprocating lifting member is provided between the outer lifting ring and the outer fixed ring, and the outer lifting ring reciprocates and lifts longitudinally when rotating relative to the outer fixed ring; an inner lifting ring abutting against the top end of the inner fixed ring is provided in the inner ring groove, an inner elastic element is provided between the top end of the inner lifting ring and the top end of the inner ring groove; a lifting blade capable of moving longitudinally is also provided on the side of the rotating blade, and both ends of the lifting blade are respectively fixedly connected to the inner circumferential wall of the outer lifting ring and the outer circumferential wall of the outer lifting ring.

[0012] Preferably, the reciprocating lifting member includes a top column fixedly arranged at the top of the outer fixing ring along the circumference of the outer fixing ring, an annular wave groove is arranged on the outer peripheral wall of the outer lifting ring, and the top column extends into the annular wave groove and slidably cooperates with it.

[0013] Preferably, the crushing mechanism also includes a fixed grinding sleeve coaxially fixedly arranged on the inner wall of the crushing tank and a grinding block arranged on the outer wall of the pumping pipe. The connection position of the pumping pipe and the grinding block deviates from the center position of the grinding block, and the top of the grinding block and the fixed grinding sleeve are both provided with inclined surfaces.

[0014] Preferably, the screening mechanism includes a filter cone sleeve, a discharge cone sleeve and an inlet cone sleeve. The filter cone sleeve is coaxially and equidistantly arranged in the inner circumferential wall of the screening chamber, the filter holes are evenly arranged on the filter cone sleeve, the outer diameter of the filter cone sleeve gradually decreases from top to bottom, an inner feeding port is formed between the inner opening of the filter cone sleeve and the outer circumferential wall of the pumping pipe, the discharge cone sleeve is coaxially arranged at the bottom end of the filter cone sleeve, the inner opening of the discharge cone sleeve is connected to the inner opening of the filter cone sleeve, the top surface of the discharge cone sleeve is inclined downward and extends to the outside of the discharge port, the inlet cone sleeve is coaxially and equidistantly arranged on the outer circumferential wall of the pumping pipe, an outer filter port is formed between the outer edge of the inlet cone sleeve and the inner circumferential wall of the crushing chamber, the inlet cone sleeve is located between adjacent filter cone sleeves, and the top surface of the inlet cone sleeve is inclined downward.

[0015] Preferably, an upper shear ring coaxial with the guide cone sleeve is provided on the outer edge thereof, upper shear cuts distributed along its circumference are provided on the upper shear ring, a fixing bar is provided on one side of the top end of the upper shear cut, and an inclined groove is provided on the side of the fixing bar facing the upper shear cut, and a lower shear ring coaxial with the inner circumferential wall of the crushing chamber is also provided, the lower shear ring is located at the bottom end of the upper shear ring, and lower shear cuts distributed along its circumference are provided on the lower shear ring.

[0016] Preferably, the collecting mechanism includes a collecting tank coaxially arranged at the lower part of the crushing tank, a feeding cavity extending radially thereof is arranged at the bottom end of the collecting tank, a discharge port is arranged at the bottom end of the feeding cavity, a feeding roller is arranged in the feeding cavity, a feeding spiral blade coaxial therewith is arranged on the feeding roller, a feeding motor is arranged outside the collecting tank, and the output shaft of the feeding motor is drivingly connected to the feeding roller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present application uses an improved pulverizing mechanism, and the material first enters the pulverizing chamber of the pulverizing tank for pulverizing. The pulverized material then passes through a screening mechanism to screen out the part that meets the target particle diameter, and is smoothly discharged through the discharge port. For those materials that have not yet reached the qualified particle diameter, these materials will fall into the return material chamber, and the pumping mechanism will pump them back into the pulverizing chamber for re-pulverization. This process is repeated until all materials reach the predetermined particle size and are discharged.

[0019] This optimized design solves the key problem of traditional grinding equipment when processing bulk coating materials: the failure to discharge materials that meet the particle diameter requirements in a timely manner. Through the efficient diversion and recovery mechanism, qualified materials can be effectively prevented from being retained in the grinding chamber, thereby reducing unnecessary grinding processes, reducing energy consumption, and improving production efficiency.

[0020] In addition, this precise screening and reflux treatment method helps to improve the uniformity of material particle size and avoid uneven particle distribution, thereby ensuring the quality stability and consistency of the coating. The system not only improves grinding efficiency, but also optimizes the distribution of material particles, solving the problems of low efficiency and uneven particle distribution in traditional equipment when grinding bulk materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of a solid material crushing and feeding device for paint production.

[0022] Figure 2 The present invention is a three-dimensional cross-sectional view of a solid material crushing and dispensing device for coating production.

[0023] Figure 3 The present invention is a cross-sectional view of a solid material crushing and dispensing device for paint production.

[0024] Figure 4 yes Figure 3 A partial enlarged view of point A.

[0025] Figure 5 The present invention is a cross-sectional view of a grinding block and a fixed grinding sleeve in a solid material crushing and feeding device for coating production.

[0026] Figure 6 yes Figure 3 A partial enlarged view of point B.

[0027] Figure 7 The present invention is a three-dimensional diagram of fixed blades and rotating blades in a solid material crushing and feeding device for paint production.

[0028] Figure 8 It is a three-dimensional exploded view of fixed blades and rotating blades in a solid material crushing and feeding device for paint production.

[0029] Fig. 9 The present invention is a stereoscopic diagram of an upper shear ring and a lower shear ring in a solid material crushing and feeding device for coating production.

[0030] Fig.10 The present invention is a stereoscopic diagram of a filter cone sleeve and a discharge cone sleeve in a solid material crushing and feeding device for paint production.

[0031] The numbers in the figure are: 1. crushing tank; 11. feeding port; 12. discharging port; 2. crushing mechanism; 21. fixed blade; 22. rotating blade; 231. outer fixed ring; 232. inner fixed ring; 241. outer rotating ring; 242. inner rotating ring; 251. outer lifting ring; 2511. wave groove; 252. inner lifting ring; 253. lifting blade; 26. outer elastic element; 27. inner elastic element; 28. top column; 291. fixed grinding sleeve; 292. grinding block; 3. screening machine Structure; 31. Filter hole; 32. Filter cone sleeve; 33. Discharge cone sleeve; 34. Guide cone sleeve; 35. Upper shear ring; 351. Fixing bar; 36. Lower shear ring; 4. Pumping mechanism; 41. Pumping pipe; 42. Pumping shaft; 421. Pumping spiral blade; 43. Pumping motor; 44. Driving gear; 45. Driven gear; 46. Internal gear ring; 47. Transmission bracket; 5. Collecting mechanism; 51. Collecting tank; 52. Feeding roller; 521. Feeding spiral blade; 53. Feeding motor. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the present application provides a solid material crushing and feeding device for coating production, including a crushing tank 1, a crushing mechanism 2, a screening mechanism 3, a pumping mechanism 4 and a collecting mechanism 5. The inner cavity of the crushing tank 1 is provided with a crushing chamber, a screening chamber and a return chamber from top to bottom in sequence. The top of the crushing tank 1 is provided with a feeding port 11, and the peripheral wall of the screening chamber is provided with a discharge port 12 connected to the outer diameter; the crushing mechanism 2 is arranged in the crushing chamber, and the crushing mechanism 2 is used to crush the material passing through the crushing chamber; the screening mechanism 3 is arranged in the screening chamber, and the screening mechanism 3 has a function of providing materials therein. A filter surface is sliding upward, and filter holes 31 are evenly arranged on the filter surface, and a guide cavity connected with the discharge port 12 is arranged at the bottom of the filter surface; a pumping mechanism 4 is arranged in the crushing tank 1, and the pumping mechanism 4 has a pumping port extending to the return cavity and a return port extending to the crushing cavity, and the pumping mechanism 4 is used to lift the material at the pumping port upward to the return port and put it into the crushing cavity; a collecting mechanism 5 is arranged outside the crushing tank 1, and the collecting mechanism 5 has a collecting cavity connected with the discharge port 12, and a discharge port for discharging the crushed material is arranged at the bottom of the collecting cavity.

[0034] A solid material crushing and feeding device for coating production comprises a crushing tank 1, a crushing mechanism 2, a screening mechanism 3, a material pumping mechanism 4 and a collecting mechanism 5. The device is designed to improve crushing efficiency, ensure uniform particle distribution and optimize production processes.

[0035] The inner cavity of the crushing tank 1 is provided with a crushing chamber, a screening chamber and a return chamber from top to bottom. A feeding port 11 is provided at the top of the crushing tank 1 for feeding materials. A discharge port 12 connected to the outer diameter is provided on the peripheral wall of the screening chamber for discharging crushed materials that meet the specifications. The crushing tank 1 has a reasonable structure to ensure smooth flow and efficient separation of materials in each chamber.

[0036] The crushing mechanism 2 is arranged in the crushing chamber for crushing the material. The design of the crushing mechanism 2 ensures that the material can be fully decomposed and crushed, providing finer particles to prepare for subsequent screening and material return.

[0037] The screening mechanism 3 is arranged in the screening cavity and has a filtering surface for the material to slide on. The filtering surface is evenly distributed with filtering holes 31, and the material is diverted according to the particle size through the action of the screen. The bottom end of the filtering surface is provided with a guide cavity connected to the discharge port 12, which is used to guide the material that meets the particle diameter requirements into the discharge port 12. This design effectively separates qualified and unqualified materials and improves the screening efficiency.

[0038] The pumping mechanism 4 is arranged in the crushing tank 1, and has a pumping port extending into the return material cavity and a return material port extending into the crushing cavity. The function of the pumping mechanism 4 is to lift the returned material that does not meet the specifications through the pumping port to the return material port, and then put it into the crushing cavity again for secondary crushing. In this way, it can be ensured that all materials are fully crushed until the required particle size is reached.

[0039] The collecting mechanism 5 is arranged outside the crushing tank 1 and connected to the discharge port 12. The collecting mechanism 5 has a collecting chamber for receiving the screened qualified materials. The bottom of the collecting chamber is provided with a discharge port for discharging the crushed materials to complete the production process.

[0040] This structural design achieves effective coordination of crushing, screening, reflux and collection functions, ensuring efficient material handling during the coating production process, reducing unnecessary repeated grinding, optimizing particle size distribution, and improving production efficiency. By finely controlling each step, the device can adapt to different coating production requirements and provide stable product quality.

[0041] like Figure 4As shown, the pumping mechanism 4 comprises a pumping pipe 41, a pumping shaft 42 and a pumping motor 43. The pumping pipe 41 is coaxially arranged in the crushing tank 1, the top end of the pumping pipe 41 is connected to the crushing chamber, and the bottom end of the pumping pipe 41 is connected to the bottom end of the return chamber; the pumping shaft 42 is coaxially rotatably arranged in the pumping pipe 41, the bottom end of the pumping shaft 42 is rotatably connected to the bottom end of the return chamber, the top end of the pumping shaft 42 passes through the top end of the crushing chamber and is rotatably connected thereto, a coaxial pumping spiral blade 421 is arranged on the circumferential surface of the pumping shaft 42, the bottom end of the pumping spiral blade 421 extends into the return chamber, and the top end of the pumping spiral blade 421 extends into the crushing chamber; the pumping motor 43 is arranged at the top end of the crushing tank 1, and the output shaft of the pumping motor 43 is drivingly connected to the top end of the pumping shaft 42.

[0042] The pumping pipe 41 is coaxially arranged in the crushing tank 1, and its top end is connected to the crushing chamber, and its bottom end is connected to the bottom end of the return chamber. Through this design, the pumping pipe 41 can ensure the smooth flow of materials between the return chamber and the crushing chamber, and effectively prevent the blockage and retention of materials during the transportation process.

[0043] The pump shaft 42 is coaxially rotatably arranged in the pump pipe 41. The bottom end of the pump shaft 42 is rotatably connected to the bottom end of the return chamber, while the top end penetrates the top end of the crushing chamber and is rotatably connected thereto. A coaxial pump spiral blade 421 is arranged on the circumferential surface of the pump shaft 42. The rotating blade enables the material that does not meet the particle diameter to be effectively pushed from the return chamber to the crushing chamber for secondary crushing. The bottom end of the pump spiral blade 421 extends to the return chamber, and the top end extends to the crushing chamber, ensuring efficient reflux of the material and continuous crushing process.

[0044] The pump motor 43 is arranged at the top of the crushing tank 1, and its output shaft is connected to the top of the pump shaft 42 through a transmission device. The pump motor 43 drives the pump shaft 42 to rotate, thereby driving the pump spiral blade 421 to work, thereby realizing the conveying and reflux of materials.

[0045] like Figure 7 and Figure 8 As shown, a pumping pipe 41 is coaxially rotatably arranged in the crushing tank 1, and the crushing mechanism 2 includes a fixed blade 21 fixedly arranged on the inner wall of the crushing chamber and a rotating blade 22 fixedly arranged on the outer peripheral wall of the pumping pipe 41. When the rotating blade 22 rotates relative to the fixed blade 21, the material passing through the crushing chamber is crushed; the pumping mechanism 4 also includes a driving gear 44, a driven gear 45 and an inner gear ring 46, the driving gear 44 is coaxially fixedly arranged on the pumping shaft 42, the driven gear 45 is rotatably arranged at the top of the crushing chamber, and the driven gear 45 is meshed with the driving gear 44, and a transmission bracket 47 is arranged at the top of the pumping pipe 41, and the inner gear ring 46 is fixedly arranged at the top of the transmission bracket 47, and the inner gear ring 46 is meshed with the driven gear 45, and a return port is formed between the transmission bracket 47 and the top of the pumping pipe 41.

[0046] The fixed blades 21 are fixedly mounted on the inner wall of the crushing chamber, and the rotating blades 22 are fixedly mounted on the outer peripheral wall of the pumping tube 41. When the pumping tube 41 rotates, the rotating blades 22 rotate relative to the fixed blades 21, generating shear force and impact force to effectively crush the material passing through the crushing chamber. Through this design, the material can be fully refined when passing through the crushing chamber, ensuring the improvement of grinding efficiency.

[0047] The pumping mechanism 4 also includes a driving gear 44, a driven gear 45 and an inner gear ring 46. The driving gear 44 is fixed on the pumping shaft 42 and meshes with the driven gear 45, and the driven gear 45 is installed at the top of the crushing chamber by rotation. This meshing structure ensures the precise transmission of power, thereby driving the rotation of the rotating blades 22 and the synchronous crushing action. In this process, the role of the inner gear ring 46 is to ensure the stable rotation of the driven gear 45. The inner gear ring 46 is fixedly installed on the top of the transmission bracket 47 and meshes with the driven gear 45.

[0048] like Figure 8 As shown, the crushing mechanism 2 also includes a fixed frame and a rotating frame, the fixed frame includes an outer fixed ring 231 coaxially fixedly arranged on the inner wall of the crushing chamber and an inner fixed ring 232 rotatably connected to the outer peripheral wall of the pumping pipe 41, and the fixed blades 21 are arranged between the inner peripheral wall of the outer fixed ring 231 and the outer peripheral wall of the inner fixed ring 232 along the circumferential direction of the pumping shaft 42; the rotating frame includes an inner rotating ring 242 coaxially fixedly arranged on the outer peripheral wall of the pumping pipe 41 and an outer rotating ring 241 coaxially rotatably arranged on the inner peripheral wall of the crushing chamber, and the rotating blades 22 are arranged between the outer peripheral wall of the inner rotating ring 242 and the inner peripheral wall of the outer rotating ring 241 along the circumferential direction of the pumping shaft 42.

[0049] The fixing frame is composed of an outer fixing ring 231 and an inner fixing ring 232. The outer fixing ring 231 is coaxially fixedly installed on the inner wall of the crushing chamber to ensure the firmness and stability of the structure; the inner fixing ring 232 is rotatably connected to the outer peripheral wall of the pumping pipe 41 to form an axial rotation fit. The fixed blades 21 are evenly arranged between the inner peripheral wall of the outer fixing ring 231 and the outer peripheral wall of the inner fixing ring 232 along the circumference of the pumping shaft 42. By cooperating with the rotating blades 22, the material can be effectively cut and compressed in the crushing chamber, thereby completing the preliminary crushing work.

[0050] The rotating frame is composed of an inner rotating ring 242 and an outer rotating ring 241. The inner rotating ring 242 is coaxially fixedly arranged on the outer peripheral wall of the pumping pipe 41, and the outer rotating ring 241 is coaxially rotatably installed on the inner peripheral wall of the crushing chamber. The rotating blades 22 are evenly arranged between the outer peripheral wall of the inner rotating ring 242 and the inner peripheral wall of the outer rotating ring 241 along the circumferential direction of the pumping shaft 42. When the pumping pipe 41 rotates, the rotating blades 22 generate cutting and friction forces as the inner rotating ring 242 and the outer rotating ring 241 rotate, further refining the material.

[0051] like Figure 6 and Figure 8 As shown, an inner ring groove is provided at the bottom end of the outer circumferential wall of the inner rotating ring 242, an outer ring groove is provided at the bottom end of the inner circumferential wall of the outer rotating ring 241, an outer lifting ring 251 is provided in the outer ring groove to abut against the top of the outer fixed ring 231, an outer elastic element 26 is provided between the top of the outer lifting ring 251 and the top of the outer ring groove, a reciprocating lifting member is provided between the outer lifting ring 251 and the outer fixed ring 231, and the outer lifting ring 251 reciprocates and lifts in the longitudinal direction when rotating relative to the outer fixed ring 231; an inner lifting ring 252 is provided in the inner ring groove to abut against the top of the inner fixed ring 232, an inner elastic element 27 is provided between the top of the inner lifting ring 252 and the top of the inner ring groove; a lifting blade 253 capable of moving in the longitudinal direction is also provided on the side of the rotating blade 22, and the two ends of the lifting blade 253 are respectively fixedly connected to the inner circumferential wall of the outer lifting ring 251 and the outer circumferential wall of the outer lifting ring 251.

[0052] The inner ring groove is provided at the bottom end of the outer peripheral wall of the inner rotating ring 242, and the outer ring groove is provided at the bottom end of the inner peripheral wall of the outer rotating ring 241. The inner ring groove and the outer ring groove provide the necessary support and sliding space for the lifting ring, so that the inner lifting ring 252 and the outer lifting ring 251 can effectively move up and down during the crushing process. The outer ring groove is provided with an outer lifting ring 251 that abuts against the top of the outer fixed ring 231, and an outer elastic element 26 is installed between the top of the outer lifting ring 251 and the top of the outer ring groove. The longitudinal reciprocating motion of the outer lifting ring 251 is powered by the elastic force of the outer elastic element 26. The outer elastic element 26 and the inner elastic element 27 can adjust the position of the lifting ring according to the pressure change, so that the outer lifting ring 251 can complete the reciprocating lifting between the outer fixed ring 231 and the outer ring groove. Similarly, the inner lifting ring 252 completes the reciprocating lifting between the inner fixed ring 232 and the inner ring groove, so that the lifting blade 253 can be lifted and lowered longitudinally on one side of the rotating blade 22. The lifting blade 253 reciprocates in the vertical direction and cuts into the block material. Due to the cooperation of the lifting blade 253 on one side of the rotating blade 22, after the material enters the crushing chamber, it is first subjected to the vertical cutting action of the lifting blade 253, and then the rotating blade 22 continues to refine the material. The pressure and shear force brought by the reciprocating motion of the lifting blade 253 can gradually crush the relatively hard block material and decompose it into smaller particles.

[0053] like Figure 8 As shown, the reciprocating lifting member includes a top column 28 fixedly arranged at the top of the outer fixing ring 231 along the circumference of the outer fixing ring 231, and an annular wave groove 2511 is arranged on the outer peripheral wall of the outer lifting ring 251. The top column 28 extends into the annular wave groove 2511 and slides with it.

[0054] When the outer lifting ring 251 rotates on the outer fixed ring 231, the annular wave groove 2511 slides on the top column 28. Since the top column 28 extends into the wave groove 2511 and slides with it, the concave and convex surface of the annular wave groove 2511 provides a continuous guide track, so that the annular wave groove 2511 can drive the outer lifting ring 251 to move back and forth in the vertical direction along the longitudinal direction, thereby driving the lifting blades 253 to reciprocate in the vertical direction to cut the block materials.

[0055] like Figure 3 and Figure 5 As shown, the crushing mechanism 2 also includes a fixed grinding sleeve 291 coaxially fixedly arranged on the inner peripheral wall of the crushing tank 1 and a grinding block 292 arranged on the outer peripheral wall of the pumping pipe 41. The connection position of the pumping pipe 41 and the grinding block 292 deviates from the center position of the grinding block 292. The top ends of the grinding block 292 and the fixed grinding sleeve 291 are both provided with inclined surfaces.

[0056] The design of the pulverizing mechanism 2 includes a fixed grinding sleeve 291 coaxially fixedly mounted on the inner peripheral wall of the pulverizing tank 1, and a grinding block 292 arranged on the outer peripheral wall of the pumping pipe 41. In order to ensure a wider contact and dispersion of the material, the connection point between the pumping pipe 41 and the grinding block 292 is deliberately offset to the center of the grinding block 292, so as to achieve a wider contact and dispersion of the material. The top of the grinding block 292 and the fixed grinding sleeve 291 are both provided with a precisely angled bevel design, which maximizes the grinding efficiency of the material and effectively reduces unnecessary friction and material accumulation.

[0057] like Figure 3 and Fig.10 As shown, the screening mechanism 3 includes a filter cone sleeve 32, a discharge cone sleeve 33 and an introduction cone sleeve 34. The filter cone sleeve 32 is coaxially and evenly spaced in the inner circumferential wall of the screening cavity. The filter holes 31 are evenly arranged on the filter cone sleeve 32. The outer diameter of the filter cone sleeve 32 gradually decreases from top to bottom. An inner feeding port is formed between the inner port of the filter cone sleeve 32 and the outer circumferential wall of the pumping pipe 41. The discharge cone sleeve 33 is coaxially arranged at the bottom end of the filter cone sleeve 32. The inner port of the discharge cone sleeve 33 is connected to the inner port of the filter cone sleeve 32. The top surface of the discharge cone sleeve 33 is inclined downward and extends to the outside of the discharge port 12. The introduction cone sleeve 34 is coaxially and evenly spaced on the outer circumferential wall of the pumping pipe 41. An outer filter port is formed between the outer edge of the introduction cone sleeve 34 and the inner circumferential wall of the crushing cavity. The introduction cone sleeve 34 is located between adjacent filter cone sleeves 32, and the top surface of the introduction cone sleeve 34 is inclined downward.

[0058] The filter cone sleeve 32 is coaxially and evenly spaced on the inner wall of the screening chamber, and the surface is evenly arranged with filter holes 31, ensuring that the crushed material can pass smoothly according to the set screening standard while maintaining efficient screening capacity. The outer diameter of the filter cone sleeve 32 gradually decreases from top to bottom to form an inner material port. The gap between the filter cone sleeve 32 and the outer wall of the pump pipe 41 optimizes the fluidity of the material, allowing the material to pass through the screen while avoiding blockage. The discharge cone sleeve 33 is arranged at the bottom end of the filter cone sleeve 32 and connected to the inner port of the filter cone sleeve 32. The top surface of the discharge cone sleeve 33 is tilted downward and extends to the outside of the discharge port 12, smoothly guiding the screened material to be discharged smoothly, improving the screening efficiency and the stability of the material flow. The guide cone sleeve 34 is arranged on the outer wall of the pump pipe 41 and is evenly spaced. It cooperates with the filter cone sleeve 32. The outer edge of the filter cone sleeve 32 forms an outer filter port between the outer edge and the inner wall of the crushing chamber, ensuring that the material can be smoothly guided and prevented from being lost when entering the screening chamber. The top surface of the guide cone sleeve 34 is tilted downward, which further optimizes the transition effect of the material during the screening process, reduces material accumulation, and ensures the high efficiency, uniformity and sustainability of the screening process. The design of the entire screening mechanism 3 ensures the smooth transition of the material from the pump pipe 41 to the discharge port 12, thereby improving the number of screening times and screening efficiency.

[0059] like Fig. 9 As shown, an upper shear ring 35 coaxial with the guide cone sleeve 34 is provided on the outer side thereof, upper shear cuts distributed along its circumference are provided on the upper shear ring 35, a fixing bar 351 is provided on one side of the top end of the upper shear cut, and an inclined groove is provided on the side of the fixing bar 351 facing the upper shear cut, and a lower shear ring 36 coaxial with the inner circumferential wall of the crushing chamber is also provided, the lower shear ring 36 is located at the bottom end of the upper shear ring 35, and lower shear cuts distributed along its circumference are provided on the lower shear ring 36.

[0060] The outer edge of the guide cone sleeve 34 is equipped with an upper shear ring 35 coaxial with it to achieve more accurate material cutting. The surface of the upper shear ring 35 is evenly arranged with multiple upper shear cuts along its circumference to ensure effective cutting and separation when the material flows through. A fixing bar 351 is provided on one side of the top of the upper shear cut. The design of these fixing bars 351 not only enhances the stability of the shear cut, but also enables the inclined groove of the fixing bar 351 to guide the material to accelerate through the upper and lower shear cuts when the fixed platform rotates along the circumference of the pump shaft 42.

[0061] To improve shearing efficiency, a coaxial lower shear ring 36 is also provided on the inner peripheral wall of the crushing chamber. The lower shear ring 36 is located at the bottom end of the upper shear ring 35, and a plurality of lower shearing notches are arranged circumferentially on its surface. The cooperation of the upper shear ring 35 and the lower shear ring 36 enables the material to be sheared multiple times when entering the crushing chamber, effectively decomposing the material and accelerating the processing process.

[0062] like Figure 3 As shown, the collecting mechanism 5 includes a collecting tank 51 coaxially arranged at the lower part of the crushing tank 1, a feeding cavity extending radially thereof is arranged at the bottom end of the collecting tank 51, a discharge port is arranged at the bottom end of the feeding cavity, a feeding roller 52 is arranged in the feeding cavity, a feeding spiral blade 521 coaxial therewith is arranged on the feeding roller 52, a feeding motor 53 is arranged outside the collecting tank 51, and an output shaft of the feeding motor 53 is drivingly connected to the feeding roller 52.

[0063] The collecting tank 51 is coaxially mounted at the bottom of the crushing tank 1, ensuring that the material can be quickly and smoothly guided into the collecting tank 51. The bottom end of the collecting tank 51 is provided with a feeding cavity extending in the radial direction, and the bottom end of the feeding cavity is provided with a discharge port, which effectively discharges the crushed material. A feeding roller 52 is installed in the feeding cavity, and a feeding spiral blade 521 coaxial with the feeding roller 52 is installed on the surface of the feeding roller 52. The design of the spiral blade effectively pushes the material to flow along the feeding cavity, ensuring that the material will not be blocked or retained, and improving the material conveying efficiency.

[0064] In order to provide stable feeding power, a feeding motor 53 is provided outside the collecting tank 51. The feeding motor 53 is connected to the feeding roller 52 through its output shaft, and a transmission device is used to realize power transmission. The stable operation of the feeding motor 53 ensures the uniform rotation of the feeding roller 52 and the stable flow of the material. At the same time, the power and speed of the feeding motor 53 are adjustable, and can be optimized according to actual production needs, thereby improving the flexibility and energy efficiency of the overall system.

[0065] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A solid material crushing and feeding device for coating production, characterized in that: It comprises a crushing tank (1), a crushing mechanism (2), a screening mechanism (3), a material pumping mechanism (4) and a collecting mechanism (5). The inner cavity of the crushing tank (1) is provided with a crushing chamber, a screening chamber and a material return chamber in order from top to bottom, the top of the crushing tank (1) is provided with a feeding port (11), and the peripheral wall of the screening chamber is provided with a material discharge port (12) connected to the outer diameter; The pulverizing mechanism (2) is arranged in the pulverizing chamber, and the pulverizing mechanism (2) is used to pulverize the material passing through the pulverizing chamber; The screening mechanism (3) is arranged in the screening cavity, the screening mechanism (3) has a filtering surface for materials to slide on, the filtering surface is evenly provided with filtering holes (31), and the bottom end of the filtering surface is provided with a guiding cavity connected with the discharge port (12); The material pumping mechanism (4) is arranged in the crushing tank (1), and has a material pumping port extending into the material return cavity and a material return port extending into the crushing cavity. The material pumping mechanism (4) is used to lift the material at the material pumping port upward to the material return port and put it into the crushing cavity. The collecting mechanism (5) is arranged outside the crushing tank (1), and the collecting mechanism (5) has a collecting chamber connected to the discharge port (12), and a discharge port for discharging crushed materials is arranged at the bottom of the collecting chamber.

2. A solid material crushing and feeding device for coating production according to claim 1, characterized in that: The pumping mechanism (4) comprises a pumping pipe (41), a pumping shaft (42) and a pumping motor (43). The pumping pipe (41) is coaxially arranged in the crushing tank (1), the top end of the pumping pipe (41) is connected to the crushing chamber, and the bottom end of the pumping pipe (41) is connected to the bottom end of the return chamber; A pump shaft (42) is coaxially rotatably arranged in the pump pipe (41), the bottom end of the pump shaft (42) is rotatably connected to the bottom end of the return chamber, the top end of the pump shaft (42) penetrates the top end of the crushing chamber and is rotatably connected thereto, a pump spiral blade (421) is arranged on the circumferential surface of the pump shaft (42), the bottom end of the pump spiral blade (421) extends into the return chamber, and the top end of the pump spiral blade (421) extends into the crushing chamber; The pumping motor (43) is arranged at the top end of the crushing tank (1), and the output shaft of the pumping motor (43) is drivingly connected to the top end of the pumping shaft (42).

3. A solid material crushing and feeding device for coating production according to claim 2, characterized in that: The pump pipe (41) is coaxially rotatably arranged in the crushing tank (1), and the crushing mechanism (2) comprises a fixed blade (21) fixedly arranged on the inner wall of the crushing chamber and a rotating blade (22) fixedly arranged on the outer peripheral wall of the pump pipe (41), and the rotating blade (22) crushes the material passing through the crushing chamber when rotating relative to the fixed blade (21); The material pumping mechanism (4) further comprises a driving gear (44), a driven gear (45) and an inner gear ring (46); the driving gear (44) is coaxially fixedly arranged on the material pumping shaft (42); the driven gear (45) is rotatably arranged at the top of the pulverizing chamber; the driven gear (45) meshes with the driving gear (44); a transmission bracket (47) is arranged at the top of the material pumping pipe (41); the inner gear ring (46) is fixedly arranged at the top of the transmission bracket (47); the inner gear ring (46) meshes with the driven gear (45); and a material return port is formed between the transmission bracket (47) and the top of the material pumping pipe (41).

4. A solid material crushing and feeding device for coating production according to claim 3, characterized in that: The crushing mechanism (2) also includes a fixed frame and a rotating frame. The fixing frame comprises an outer fixing ring (231) coaxially fixedly arranged on the inner wall of the pulverizing chamber and an inner fixing ring (232) rotatably connected to the outer peripheral wall of the pumping pipe (41); the fixing blade (21) is arranged between the inner peripheral wall of the outer fixing ring (231) and the outer peripheral wall of the inner fixing ring (232) along the circumferential direction of the pumping shaft (42); The rotating frame comprises an inner rotating ring (242) coaxially fixedly arranged on the outer peripheral wall of the pumping pipe (41) and an outer rotating ring (241) coaxially rotatably arranged on the inner peripheral wall of the grinding chamber, and the rotating blades (22) are arranged between the outer peripheral wall of the inner rotating ring (242) and the inner peripheral wall of the outer rotating ring (241) along the circumferential direction of the pumping shaft (42).

5. A solid material crushing and feeding device for coating production according to claim 4, characterized in that: The bottom end of the outer peripheral wall of the inner rotating ring (242) is provided with an inner ring groove, and the bottom end of the inner peripheral wall of the outer rotating ring (241) is provided with an outer ring groove. An outer lifting ring (251) is arranged in the outer ring groove and abuts against the top of the outer fixing ring (231); an outer elastic element (26) is arranged between the top of the outer lifting ring (251) and the top of the outer ring groove; a reciprocating lifting member is arranged between the outer lifting ring (251) and the outer fixing ring (231); when the outer lifting ring (251) rotates relative to the outer fixing ring (231), it reciprocates and lifts in the longitudinal direction; An inner lifting ring (252) is arranged in the inner ring groove and abuts against the top of the inner fixing ring (232), and an inner elastic element (27) is arranged between the top of the inner lifting ring (252) and the top of the inner ring groove; A lifting blade (253) capable of moving in the longitudinal direction is also provided on the side of the rotating blade (22), and two ends of the lifting blade (253) are respectively fixedly connected to the inner peripheral wall of the outer lifting ring (251) and the outer peripheral wall of the outer lifting ring (251).

6. A solid material crushing and feeding device for coating production according to claim 5, characterized in that: The reciprocating lifting member comprises a top column (28) fixedly arranged at the top end of the outer fixing ring (231) along the circumferential direction of the outer fixing ring (231); an annular wave groove (2511) is arranged on the outer peripheral wall of the outer lifting ring (251); the top column (28) extends into the annular wave groove (2511) and slidably cooperates with the annular wave groove (2511).

7. A solid material crushing and feeding device for coating production according to any one of claims 3 to 6, characterized in that: The pulverizing mechanism (2) further comprises a fixed grinding sleeve (291) coaxially fixedly arranged on the inner peripheral wall of the pulverizing tank (1) and a grinding block (292) arranged on the outer peripheral wall of the pumping pipe (41); the connection position between the pumping pipe (41) and the grinding block (292) deviates from the central position of the grinding block (292); and the top ends of the grinding block (292) and the fixed grinding sleeve (291) are both provided with inclined surfaces.

8. A solid material crushing and feeding device for coating production according to any one of claims 3 to 6, characterized in that: The screening mechanism (3) comprises a filtering cone sleeve (32), a discharge cone sleeve (33) and a guide cone sleeve (34). The filter cone sleeve (32) is coaxially and evenly spaced in the inner peripheral wall of the screening chamber, the filter holes (31) are evenly arranged on the filter cone sleeve (32), the outer diameter of the filter cone sleeve (32) gradually decreases from top to bottom, and an inner material port is formed between the inner opening of the filter cone sleeve (32) and the outer peripheral wall of the pumping pipe (41); The discharge cone sleeve (33) is coaxially arranged at the bottom end of the filter cone sleeve (32), the inner opening of the discharge cone sleeve (33) is connected to the inner opening of the filter cone sleeve (32), and the top surface of the discharge cone sleeve (33) is inclined downward and extends to the outside of the discharge port (12); The material introducing cone sleeve (34) is coaxially and evenly spaced on the outer peripheral wall of the material pumping pipe (41), an outer filter port is formed between the outer edge of the material introducing cone sleeve (34) and the inner peripheral wall of the pulverizing chamber, the material introducing cone sleeve (34) is located between adjacent filter cone sleeves (32), and the top surface of the material introducing cone sleeve (34) is inclined downward.

9. A solid material crushing and feeding device for coating production according to claim 8, characterized in that: An upper shear ring (35) coaxial with the guide cone sleeve (34) is arranged on the outer side thereof, and upper shear cuts distributed along its circumference are arranged on the upper shear ring (35), a fixing strip (351) is arranged on one side of the top end of the upper shear cuts, and an inclined groove is also arranged on one side of the fixing strip (351) facing the upper shear cuts; The inner peripheral wall of the pulverizing chamber is also provided with a coaxial lower shear ring (36), the lower shear ring (36) is located at the bottom end of the upper shear ring (35), and the lower shear ring (36) is provided with lower shear cuts distributed along its circumference.

10. A solid material crushing and feeding device for coating production according to any one of claims 1 to 6, characterized in that: The collecting mechanism (5) comprises a collecting tank (51) coaxially arranged at the lower part of the crushing tank (1); a feeding cavity extending in the radial direction is arranged at the bottom end of the collecting tank (51); a discharge port is arranged at the bottom end of the feeding cavity; a feeding roller (52) is arranged in the feeding cavity; a feeding spiral blade (521) coaxial with the feeding roller (52) is arranged on the feeding roller (52); a feeding motor (53) is arranged outside the collecting tank (51); and an output shaft of the feeding motor (53) is drivingly connected to the feeding roller (52).

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