Raw material cleaning device for thermoplastic elastomer production and cleaning process thereof

Abstract

The invention relates to the technical field of raw material cleaning, in particular to a raw material cleaning device for thermoplastic elastomer production and a cleaning process thereof. Comprising an inverted-triangle-shaped cleaning box and a support at the bottom of the cleaning box. A V-shaped groove is formed in the cleaning box; a feeding hopper is upwards arranged at the left upper end of the V-shaped groove, and a discharging hopper is downwards obliquely arranged at the right upper end of the V-shaped groove; the left upper end of the V-shaped groove is connected with a left shaft in a front-back rotating mode, the right upper end is connected with a right shaft in a front-back rotating mode, and the corner position is connected with a bottom shaft in a front-back rotating mode. The outer walls of the left shaft, the right shaft and the bottom shaft are connected with a rotating sleeve; the three rotating sleeves are in transmission connection with filter cloth; anti-slip strips are uniformly arranged on the outer wall of the filter cloth; the length direction of the anti-slip strips is consistent with the front-back direction; the filter cloth drives the anti-slip strips to transmit in the V-shaped grooves, so that particle raw materials are rubbed and cleaned by the filter cloth in the cleaning gaps and are smoothly taken out after being cleaned, and continuous cleaning is realized while the cleaning effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of raw material cleaning, and in particular to a raw material cleaning device and a cleaning process for the production of thermoplastic elastomers. Background Art

[0002] Thermoplastic elastomers TPE / TPR, also known as artificial rubber or synthetic rubber. Its products not only possess the excellent properties of traditional cross-linked vulcanized rubber such as high elasticity, aging resistance, and oil resistance, but also have the characteristics of convenient processing and a wide range of processing methods of ordinary plastics. It can be produced by processing methods such as injection molding, extrusion, and blow molding. After the sprue corners are crushed, 100% can be directly reused for the second time. It not only simplifies the processing process but also reduces the processing cost. Therefore, thermoplastic elastomer TPE / TPR materials have become the latest materials to replace traditional rubbers. They are environmentally friendly, non-toxic, comfortable to the touch, and exquisitely designed, making the products more creative.

[0003] Thermoplastic elastomer raw materials are usually granular. Before production, the raw materials need to be cleaned to remove impurities, dust, oil stains, etc. to ensure the quality of subsequent processing.

[0004] There are three mainstream cleaning methods. The first is the spray type. After the granular raw materials are poured onto the upper surface of the conveyor belt, the conveyor belt will transport the granular raw materials into the spray box. The nozzles in the spray box will spray the granular raw materials. Although this method has the characteristic of continuity, during the spraying process of the granular raw materials on the conveyor belt, the granular raw materials in the deep layer cannot be effectively sprayed, and the cleaning effect is poor. The second is the drum type. The granular raw materials are poured into the drum and the cover door is closed. The drum rotates to realize the contact between the granular raw materials and the cleaning liquid. After cleaning, the granular raw materials are taken out of the drum. Although this method has a good cleaning effect, it is necessary to frequently stop the machine to open and close the cover door, and continuous cleaning cannot be achieved. The third is the assembly line type. The granular raw materials are directly poured into the cleaning pool. Under the agitation of the stirring components in the cleaning pool, the granular raw materials in the cleaning pool are fully contacted with the cleaning liquid. Finally, the granular raw materials are fished out. Although this method realizes continuity, the raw materials in the cleaning pool cannot be fished out in time after cleaning, resulting in over-cleaning. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, the present invention proposes a raw material cleaning device and a cleaning process for the production of thermoplastic elastomers. In the present invention, the filter cloth drives the anti-slip strips to transmit in the V-shaped groove, so that the granular raw materials are rubbed and cleaned by the filter cloth during the cleaning gap, and are smoothly taken out after cleaning, thereby ensuring the cleaning effect while realizing continuous cleaning.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A raw material cleaning device for the production of thermoplastic elastomers according to the present invention includes an inverted triangular cleaning tank and a bracket at the bottom of the cleaning tank; a V-shaped groove is provided inside the cleaning tank; a feed hopper is provided at the upper left end of the V-shaped groove facing upward, and a discharge hopper is provided at the upper right end inclined downward; the upper left end of the V-shaped groove is rotatably connected to the left shaft in the front and back directions, the upper right end is rotatably connected to the right shaft in the front and back directions, and the bottom shaft is rotatably connected to the front and back directions at the corner position; the outer walls of the left shaft, the right shaft, and the bottom shaft are connected with rotating sleeves; the three rotating sleeves are drivingly connected to a filter cloth; anti-slip strips are uniformly arranged on the outer wall of the filter cloth; the length direction of the anti-slip strips is consistent with the front and back directions; a motor is fixedly connected to the front outer wall of the cleaning tank; the output shaft of the motor is fixedly connected to the left shaft; a first shielding block is provided at the upper left end of the filter cloth, and a second shielding block is provided at a position below the upper right end; the V-shaped groove is filled with cleaning liquid; a drain flange communicating with the V-shaped groove is provided at the bottom of the cleaning tank.

[0007] Preferably, the V-shaped groove is slidably and sealingly connected to a V-shaped plate in the front and back directions; the end of the V-shaped plate extends to the feed hopper and the discharge hopper; the ends of the rotating sleeves on the left shaft and the right shaft pass through the V-shaped plate and are rotatably and sealingly connected to the V-shaped plate; the sliding groove on the outer wall of the left shaft is slidably connected to the sliding strip on the inner wall of the rotating sleeve; a first spring abuts between the front end of the rotating sleeve on the left shaft and the front inner wall of the V-shaped groove; a movable block is fixedly connected to the rear end of the rotating sleeve on the left shaft; a fixed block is provided on the rear inner wall of the V-shaped groove corresponding to the movable block; a guiding surface is provided at the contact position between the movable block and the fixed block.

[0008] Preferably, rolling columns are rotatably connected to the corner positions of the upper inner wall of the V-shaped groove; the outer walls of the rolling columns are tangent to the upper inner wall of the V-shaped groove.

[0009] Preferably, vertical grooves are provided on the mutually approaching surfaces of the two V-shaped plates; vertical blocks are slidably connected up and down in the vertical grooves; a second spring is connected between the upper surface of the vertical block and the upper end of the vertical groove; the bottom shaft is rotatably connected between the two vertical blocks.

[0010] Preferably, an inverted triangular groove is provided inside the cleaning tank; the inverted triangular groove passes through a top pipe in the front and back directions; a top hole is provided downward in the middle section of the top pipe; a liquid pump is connected in series between the front end of the top pipe and the bottom wall of the V-shaped groove through a pipeline; a water-permeable hole is provided between the lower position of the inverted triangular groove and the corner position of the upper inner wall of the V-shaped groove.

[0011] Preferably, two inverted triangular plates are slidably and sealingly connected to the inverted triangular groove in the front and back directions; the two inverted triangular plates are slidably connected to the top pipe; a magnet is embedded at the inner edge of the V-shaped plate; the inverted triangular plate is made of a magnetic material and can be attracted by the corresponding V-shaped plate.

[0012] Preferably, shielding covers are arranged at the front and rear positions of the openings of the feed hopper and the discharge hopper; under the action of the shielding covers, the V-shaped plates slide and seal in the V-shaped grooves; working chambers are respectively formed between the two V-shaped plates and the front and rear inner walls of the V-shaped grooves; one-way air inlet holes are arranged through the inner side of the filter cloth in the working chambers, and the one-way air inlet holes are arranged on the inner side of the right half section of the filter cloth; one-way air outlet holes are arranged through the working chambers and the outside.

[0013] Preferably, the orifice of the one-way air outlet hole faces the position slightly below the upper right end of the filter cloth.

[0014] A raw material cleaning process for the production of thermoplastic elastomers, which is applicable to the above-mentioned raw material cleaning device for the production of thermoplastic elastomers, and the steps of the process are as follows: S1: After the drain flange is closed, pour the cleaning liquid into the V-shaped groove along the feed hopper and fill it to half the height of the V-shaped groove, and then pour the granular raw materials into the cleaning gap along the feed hopper, and start the liquid pump and the motor to work; S2: The motor drives the left shaft to rotate and the rotating sleeve on the left shaft to rotate, and under the cooperation of the fixed block and the movable block, the filter cloth moves back and forth while being driven, and the filter cloth kneads the granular raw materials in the cleaning gap; S3: The granular raw materials knead and move first from top to bottom and then from bottom to top along the cleaning gap, and the liquid pump pumps the cleaning liquid at the bottom of the V-shaped groove into the inverted triangular groove, and the cleaning liquid is discharged into the cleaning gap along the water permeable holes; S4: The granular raw materials after cleaning are taken out of the cleaning gap by the filter cloth under the action of negative pressure and the anti-slip strips, and finally the discharging process is completed along the discharge hopper.

[0015] The beneficial effects of the present invention are as follows: 1. In the present invention, the filter cloth drives the anti-slip strips to drive in the V-shaped groove, so that the granular raw materials are kneaded and cleaned by the filter cloth in the cleaning gap, and are smoothly taken out after cleaning, thereby ensuring the cleaning effect and realizing continuous cleaning.

[0016] 2. In the present invention, the granular raw materials entering the cleaning gap are spread out under the back-and-forth movement of the filter cloth, so that the granular raw materials are evenly distributed in the width direction of the filter cloth, avoiding the uneven distribution of the granular raw materials in the width direction of the filter cloth from affecting the contact of the filter cloth, thereby ensuring the contact effect between the filter cloth and the granular raw materials, and further ensuring the kneading effect of the filter cloth on the granular raw materials in the width direction.

[0017] 3. In the present invention, the vertical block is elastically slidably connected in the vertical groove, so that the cleaning gap can change with the change of the feeding amount of the granular raw materials, thereby ensuring the kneading effect of the filter cloth on the granular raw materials in the cleaning gap and being applicable to the different feeding amount requirements of granular materials. Description of the Drawings

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 is a perspective view of the cleaning device of the present invention; Figure 2 is a structural diagram of the interior of the cleaning tank of the present invention; Figure 3 is Figure 2 a perspective view from another angle in Figure 4 is Figure 3 an enlarged view of part A in Figure 5 is a perspective view of the transmission of the filter cloth in the present invention; Figure 6 is Figure 5 an enlarged view of part B in Figure 7 is a cross-sectional view of the present invention in the front-back direction; Figure 8 is a cross-sectional view of the present invention in the left-right direction; Figure 9 is Figure 8 an enlarged view of part C in Figure 10 is a process flow chart of the cleaning process of the present invention.

[0020] In the figure: cleaning tank 1, bracket 11, V-shaped groove 12, feed hopper 13, shielding cover 131, discharge hopper 14, motor 15, drain flange 16, rolling column 17, inverted triangular groove 18, water permeable hole 181, inverted triangular plate 182, top pipe 19, top hole 191, pipe 192, liquid pump 193, left shaft 2, sliding groove 21, first spring 22, movable block 23, guiding surface 231, fixed block 24, right shaft 3, bottom shaft 4, rotating sleeve 5, sliding strip 51, filter cloth 6, anti-slip strip 61, first shielding block 62, second shielding block 63, V-shaped plate 7, vertical groove 71, vertical block 72, second spring 73, magnet 74, working cavity 75, one-way air inlet hole 76, one-way air outlet hole 77. Specific Embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0022] As Figures 1 to 10 shown, the present invention includes the following embodiments: Embodiment 1: A raw material cleaning device for the production of thermoplastic elastomers, comprising an inverted triangular cleaning tank 1 and a bracket 11 at the bottom of the cleaning tank 1; a V-shaped groove 12 is arranged inside the cleaning tank 1; a feed hopper 13 is arranged upward at the upper left end of the V-shaped groove 12, and a discharge hopper 14 is arranged downward and obliquely at the upper right end; the left shaft 2 is rotatably connected to the front and back at the upper left end of the V-shaped groove 12, the right shaft 3 is rotatably connected to the front and back at the upper right end, and the bottom shaft 4 is rotatably connected to the front and back at the corner position; the outer walls of the left shaft 2, the right shaft 3 and the bottom shaft 4 are connected with rotating sleeves 5; the three rotating sleeves 5 are drivingly connected with a filter cloth 6; anti-slip strips 61 are uniformly arranged on the outer wall of the filter cloth 6; the length direction of the anti-slip strips 61 is consistent with the front and back direction; a motor 15 is fixedly connected to the front outer wall of the cleaning tank 1; the output shaft of the motor 15 is fixedly connected to the left shaft 2; a first shielding block 62 is arranged at the upper left end of the filter cloth 6, and a second shielding block 63 is arranged at a position close to the lower part at the upper right end; the V-shaped groove 12 is filled with cleaning liquid; a drain flange 16 communicating with the V-shaped groove 12 is arranged at the bottom of the cleaning tank 1.

[0023] After closing the drain flange 16 at the bottom of the cleaning box 1, pour the cleaning liquid along the feed hopper 13, the cleaning liquid will flow into the V-shaped groove 12, the liquid level of the cleaning liquid will be at half the height of the V-shaped groove 12, the motor 15 will start to work, the motor 15 will drive the left shaft 2 to rotate during the operation, the left shaft 2 will drive the rotating sleeve 5 on the left shaft 2 to rotate during the rotation, the inner wall of the filter cloth 6 and the outer wall of the rotating sleeve 5 are both anti-skid treated to avoid slipping, so that the left shaft 2 will drive the filter cloth 6 to transmit on the outer walls of the three rotating sleeves 5 during the rotation, the upper half of the filter cloth 6 is transmitted from left to right, the lower half of the filter cloth 6 is transmitted from right to left, and the filter cloth 6 will drive the outer wall during the transmission process. The anti-skid strip 61 is synchronously driven, and then the granular raw material, i.e., the raw material for thermoplastic elastomer production, is poured into the feed hopper 13. Under the guidance of the first blocking block 62, the granular raw material will enter the gap between the upper surface of the upper half of the filter cloth 6 and the upper inner wall of the V-shaped groove 12. The gap is the cleaning gap. The granular raw material will fill the cleaning gap under the action of gravity. The filter cloth 6 will drive the anti-skid strip 61 to move synchronously under the transmission, so that the filter cloth 6 drives the anti-skid strip 61 to rub the granular raw material in the cleaning gap downward, and the granular raw material is immersed in the cleaning liquid and rubbed. After the granular raw material is rubbed, the dirt on its surface falls off. As the transmission belt continues to drive, the transmission belt will be used The anti-skid strip 61 is used to drive the granular raw material to cross the corner position of the upper inner wall of the V-shaped groove 12. After the granular raw material crosses the lowest point of the cleaning gap, the anti-skid strip 61 rubs the granular raw material from bottom to top, and the granular raw material will gradually separate from the liquid surface of the cleaning liquid. The liquid on the surface of the granular raw material drips under the rubbing, so that the granular raw material is dehydrated after cleaning, and the cleaning liquid can be recovered to avoid waste. The granular raw material will gradually be taken out of the cleaning gap by the anti-skid strip 61, and the granular raw material will finally flow out along the discharge hopper 14, the feed hopper 13 will continue to feed, and the discharge hopper 14 will continue to discharge; the anti-skid strip 61 is made of hard material to prevent the anti-skid strip 61 from bending and causing the filter cloth 6 to bend in the width direction, ensuring the filter The cloth 6 is adapted to the front and rear directions of the V-shaped groove 12 to prevent the granular raw materials from leaking out in the cleaning gap, thereby ensuring the integrity of the granular raw materials after cleaning; the cleaning liquid in the V-shaped groove 12 is replaced regularly to meet the cleaning needs, and the dirt can pass through the filter cloth 6 and flow away with the cleaning liquid, or dissolve in the cleaning liquid, and the cleaning liquid can be a mixed liquid of degreasing and de-dirt; compared with spray cleaning, the granular raw materials can be turned over during the kneading process, and the granular raw materials on the inner and outer layers can be cleaned; compared with drum cleaning, there is no need to frequently open and close the cover door, and the feeding and discharging are convenient, and continuous cleaning can be achieved; compared with assembly line cleaning, the cleaned granular raw materials can be taken out in time, and the discharging is timely; The present invention drives the anti-slip strip 61 to transmit in the V-shaped groove 12 through the filter cloth 6, so that the granular raw material is rubbed and cleaned by the filter cloth 6 in the cleaning gap and is smoothly taken out after cleaning, thereby ensuring the cleaning effect while achieving continuous cleaning.

[0024] Embodiment 2: The V-shaped groove 12 is slidably and sealingly connected to the V-shaped plate 7 in the front and rear directions; the end of the V-shaped plate 7 extends to the feed hopper 13 and the discharge hopper 14; the ends of the rotating sleeves 5 on the left shaft 2 and the right shaft 3 pass through the V-shaped plate 7 and are rotatably and sealingly connected to the V-shaped plate 7; the sliding groove 21 on the outer wall of the left shaft 2 is slidably connected to the sliding strip 51 on the inner wall of the rotating sleeve 5; a first spring 22 abuts between the front end of the rotating sleeve 5 on the left shaft 2 and the front inner wall of the V-shaped groove 12; a movable block 23 is fixedly connected to the rear end of the rotating sleeve 5 on the left shaft 2; a fixed block 24 is correspondingly arranged on the rear inner wall of the V-shaped groove 12 and the movable block 23; a guiding surface 231 is arranged at the contact position between the movable block 23 and the fixed block 24.

[0025] In this embodiment, a rolling column 17 is rotatably connected to the corner position of the upper inner wall of the V-shaped groove 12; the outer wall of the rolling column 17 is tangent to the upper inner wall of the V-shaped groove 12.

[0026] During the rotation of the motor 15, the left shaft 2 will be driven to rotate. During the rotation of the left shaft 2, the chute 21 on the outer wall will rotate along with the rotation of the left shaft 2. Since the chute 21 is provided on the outer wall of the left shaft 2 and the slide bar 51 on the inner wall of the corresponding rotating sleeve 5 is slidably connected to the chute 21, the rotating sleeve 5 on the outer wall of the left shaft 2 will be driven to rotate during the rotation of the left shaft 2. The rotating sleeve 5 on the outer wall of the left shaft 2 can move back and forth along the length direction of the left shaft 2. The rear end of the rotating sleeve 5 on the left shaft 2 will drive the movable block 23 to rotate. During the rotation of the movable block 23, it will contact the fixed block 24. An inclined guiding surface 231 is provided at the contact position between the movable block 23 and the fixed block 24, enabling the movable block 23 to smoothly cross over the fixed block 24. During the process of the movable block 23 crossing over the fixed block 24, the movable block 23 will move forward, and during the forward movement of the movable block 23, the connected rotating sleeve 5 will be driven to move forward. The slide bar 51 on the inner wall of the corresponding rotating sleeve 5 slides and moves forward along the chute 21. During the forward movement of the corresponding rotating sleeve 5, the two V-shaped plates 7 and the filter cloth 6 as a whole will be driven to move forward. The right shaft 3 is movably connected to the corresponding rotating sleeve 5, and the bottom shaft 4 is movably connected to the corresponding rotating sleeve 5. After the movable block 23 crosses over the fixed block 24, the first spring 22 will push the multiple rotating sleeves 5, the filter cloth 6, and the two V-shaped plates 7 to move backward. Repeating this process, during the rotation of the motor 15 driving the left shaft 2, the filter cloth 6 can be driven and can move back and forth in the front-back direction. During the transmission of the filter cloth 6, it can contact the rolling column 17. The rolling column 17 can reduce the friction between the filter cloth 6 and the upper inner corner of the V-shaped groove 12, reducing the wear of the filter cloth 6. The filter cloth 6 can rub and wash the granular raw materials in the cleaning gap along the transmission direction of the filter cloth 6. Additionally, since the filter cloth 6 can move back and forth as a whole, the granular raw materials in the cleaning gap can be rubbed in the front-back direction, improving the cleaning effect of the granular raw materials. Additionally, the granular raw materials entering the cleaning gap are spread out under the back-and-forth movement of the filter cloth 6, making the granular raw materials evenly distributed in the width direction of the filter cloth 6, avoiding uneven distribution of the granular raw materials in the width direction of the filter cloth 6 from affecting the contact of the filter cloth 6, thereby ensuring the contact effect between the filter cloth 6 and the granular raw materials, and further ensuring the rubbing effect of the filter cloth 6 on the granular raw materials in the width direction. The even distribution of the granular raw materials in the width direction of the filter cloth 6 is also beneficial to the uniform cleaning of the granular raw materials.

[0027] Embodiment 3: Vertical grooves 71 are provided on the mutually approaching surfaces of the two V-shaped plates 7; a vertical block 72 is slidably connected up and down in the vertical grooves 71; a second spring 73 is connected between the upper surface of the vertical block 72 and the upper end of the vertical groove 71; the bottom shaft 4 is rotatably connected between the two vertical blocks 72.

[0028] After the granular raw material enters the cleaning gap along the feed hopper 13, the granular raw material will rub along the cleaning gap under the drive of the filter cloth 6. When the amount of the granular raw material entering the cleaning gap is large, the granular raw material in the cleaning gap will squeeze the upper half of the filter cloth 6 to further sink downward, causing the cleaning gap to expand. In this way, the lower half of the filter cloth 6 shrinks upward, so that the bottom shaft 4 and the rotating sleeve 5 on the bottom shaft 4 move upward. During the upward movement of the bottom shaft 4, it will drive the vertical block 72 to move upward along the vertical groove 71 and overcome the elastic force of the second spring 73. When the amount of the granular raw material entering the cleaning gap is small, the second spring 73 will push the vertical block 72 to move downward along the vertical groove 71, and the vertical block 72 will drive the bottom shaft 4 and the rotating sleeve 5 on the bottom shaft 4 to move downward, causing the lower half of the filter cloth 6 to bulge further downward, and the upper half of the filter cloth 6 to tighten upward, so that the cleaning gap becomes smaller. In this embodiment, the vertical block 72 is elastically and slidably connected in the vertical groove 71, so that the cleaning gap can change with the change of the amount of the granular raw material entering, and while ensuring the rubbing effect of the filter cloth 6 on the granular raw material in the cleaning gap, it is applicable to the different feeding amount requirements of the granular material.

[0029] Embodiment 4: An inverted triangular groove 18 is arranged inside the cleaning box 1; the inverted triangular groove 18 passes through the top pipe 19 from front to back; a top hole 191 is arranged downwardly through the middle section of the top pipe 19; a liquid pump 193 is connected in series between the front end of the top pipe 19 and the bottom wall of the V-shaped groove 12 through a pipeline 192; a water permeable hole 181 is arranged through the position of the inverted triangular groove 18 close to the lower part and the corner position of the upper inner wall of the V-shaped groove 12.

[0030] In this embodiment, two inverted triangular plates 182 are slidably and sealingly connected to the inverted triangular groove 18 from front to back; the two inverted triangular plates 182 are slidably connected to the top pipe 19; a magnet 74 is embedded at the inner edge of the V-shaped plate 7; the inverted triangular plate 182 is made of a magnetic material and can be attracted by the corresponding V-shaped plate 7.

[0031] During the operation of the motor 15, the filter cloth 6 can be driven to rub the granular raw materials in the cleaning gap. The liquid pump 193 will suck away the cleaning liquid at the bottom of the V-shaped groove 12. The cleaning liquid is discharged from the liquid pump 193 into the top pipe 19, and finally flows into the inverted triangular groove 18 through the top hole 191 in the middle of the top pipe 19. Under the action of pressure, the cleaning liquid is discharged into the cleaning gap along the water permeable holes 181, so as to impact the granular raw materials in the cleaning gap. By continuously passing the cleaning liquid through the cleaning gap, the cleaning effect of the granular raw materials is improved. After passing through the filter cloth 6, the cleaning liquid will re-converge at the bottom of the V-shaped groove 12 and circulate in this way; during the process of the motor 15 driving the filter cloth 6 to move, in cooperation with the fixed block 24 and the movable block 23, the whole filter cloth 6 moves forward and backward. The two V-shaped plates 7 will move synchronously with the forward and backward movement of the filter cloth 6. The V-shaped plate 7 can drive the corresponding inverted triangular plate 182 to move forward and backward through magnetic attraction. The distance between the two inverted triangular plates 182 is adapted to the width of the filter cloth 6 and can change with the change of the front and rear positions of the filter cloth 6, so as to ensure that the cleaning liquid corresponds to the granular raw materials in the cleaning gap, ensure the cleaning effect and avoid the waste of the cleaning liquid.

[0032] Embodiment 5: Shielding covers 131 are arranged at the front and rear positions of the openings of the feeding hopper 13 and the discharging hopper 14; the V-shaped plates 7 slide and seal in the V-shaped groove 12 under the action of the shielding covers 131; working cavities 75 are respectively formed between the two V-shaped plates 7 and the front and rear inner walls of the V-shaped groove 12; one-way air inlet holes 76 are arranged through the working cavities 75 and the inner side of the filter cloth 6, and the one-way air inlet holes 76 are arranged on the inner side of the right half section of the filter cloth 6; one-way air outlet holes 77 are arranged through the working cavities 75 and the outside.

[0033] In this embodiment, the orifice of the one-way air outlet hole 77 faces the position slightly below the upper right end of the filter cloth 6.

[0034] During the operation of the motor 15, while driving the filter cloth 6 to move, it also reciprocates back and forth. The filter cloth 6 drives the two V-shaped plates 7 to reciprocate back and forth. During the forward movement of the two V-shaped plates 7, the working chamber 75 at the front position is compressed and increased, and the gas will be discharged along the one-way air outlet 77, and impact the granular raw materials unloaded from the filter cloth 6, so that the granular raw materials converge towards the middle position of the discharge hopper 14, improving the discharge efficiency. The space of the working chamber 75 at the rear position becomes larger to form a negative pressure, and a negative pressure is formed on the inner side of the right half section of the filter cloth 6, so that a negative pressure is formed on the upper surface of the right half section of the filter cloth 6. The gas will pass along the upper surface of the right half section of the filter cloth 6 and pass through the filter cloth 6 into the inner side of the filter cloth 6. In this way, the granular raw materials exposed from bottom to top in the cleaning gap are adsorbed on the surface of the filter cloth 6 under the action of the negative pressure, making the filter cloth 6 more stable and smoothly take out the granular raw materials from the cleaning gap, improving the stability of the discharge of the granular raw materials; due to the alternating increase and decrease of the working chambers 75 at the front and rear positions, a negative pressure will always be formed on the inner side of the right half section of the filter cloth 6, ensuring that the granular raw materials are adsorbed on the filter cloth 6 and discharged as the filter cloth 6 moves; the granular raw materials at the position of the discharge hopper 14 will also be quickly discharged under the impact of the continuous airflow.

[0035] Embodiment 6: A raw material cleaning process for the production of thermoplastic elastomers, which is applicable to the above-mentioned raw material cleaning device for the production of thermoplastic elastomers. The steps of this process are as follows: S1: After closing the drain flange 16, pour the cleaning liquid along the feed hopper 13 into the V-shaped groove 12 and fill it to half the height of the V-shaped groove 12. Then pour the granular raw materials along the feed hopper 13 into the cleaning gap, and start the liquid pump 193 and the motor 15 to work. S2: The motor 15 drives the left shaft 2 to rotate and the rotating sleeve 5 on the left shaft 2 to rotate. Under the cooperation of the fixed block 24 and the movable block 23, the filter cloth 6 moves back and forth while driving, and the filter cloth 6 kneads the granular raw materials in the cleaning gap. S3: The granular raw materials are kneaded first from top to bottom and then from bottom to top along the cleaning gap. The liquid pump 193 pumps the cleaning liquid at the bottom of the V-shaped groove 12 into the inverted triangular groove 18, and the cleaning liquid is discharged into the cleaning gap along the water permeable holes 181. S4: The granular raw materials after cleaning are taken out of the cleaning gap by the filter cloth 6 under the action of the negative pressure and the anti-slip strips 61, and finally complete the discharging process along the discharge hopper 14.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0037] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material cleaning device for the production of thermoplastic elastomers, comprising a cleaning tank; characterized in that: Inside the cleaning tank, a V-shaped groove is provided; at the upper left end of the V-shaped groove, a feeding hopper is arranged facing upward, and at the upper right end, a discharging hopper is arranged obliquely downward; at the upper left end of the V-shaped groove, a left shaft is rotatably connected front and back, at the upper right end, a right shaft is rotatably connected front and back, and at the corner position, a bottom shaft is rotatably connected front and back; sleeves are connected to the outer walls of the left shaft, the right shaft, and the bottom shaft; the three sleeves are drivingly connected to a filter cloth; anti-slip strips are evenly arranged on the outer wall of the filter cloth; the length direction of the anti-slip strips is consistent with the front-back direction; the left shaft is driven by a motor; a first shielding block is provided at the upper left end of the filter cloth, and a second shielding block is provided at a position slightly below the upper right end; the V-shaped groove is filled with cleaning liquid; at the bottom of the cleaning tank, a drain flange communicating with the V-shaped groove is provided.

2. The raw material cleaning device for the production of thermoplastic elastomers according to claim 1, characterized in that: The V-shaped groove is slidably and sealingly connected to a V-shaped plate in the front-back direction; the end of the V-shaped plate extends to the feeding hopper and the discharging hopper; the ends of the sleeves on the left shaft and the right shaft pass through the V-shaped plate and are rotatably connected to the V-shaped plate; the outer wall of the left shaft is elastically slidably connected to the inner wall of the sleeve; at the rear end of the sleeve on the left shaft, a movable block is fixedly connected; a fixed block is correspondingly arranged on the rear inner wall of the V-shaped groove with respect to the movable block; a guiding surface is provided at the contact position between the movable block and the fixed block.

3. The raw material cleaning device for the production of thermoplastic elastomers according to claim 2, characterized in that: At the corner position of the upper inner wall of the V-shaped groove, a rolling column is rotatably connected; the rolling column is tangent to the upper inner wall of the V-shaped groove.

4. The raw material cleaning device for the production of thermoplastic elastomers according to claim 2, wherein: On the mutually approaching surfaces of the two V-shaped plates, vertical grooves are provided; a vertical block is elastically slidably connected up and down in the vertical grooves; the bottom shaft is rotatably connected between the two vertical blocks.

5. The raw material cleaning device for the production of thermoplastic elastomers according to claim 2, characterized in that: Inside the cleaning tank, an inverted triangular groove is provided; the inverted triangular groove penetrates through a top pipe in the front-back direction; a top hole is provided downwardly through the middle section of the top pipe; a liquid pump is connected in series between the front end of the top pipe and the bottom wall of the V-shaped groove through a pipeline; a water-permeable hole is provided between the lower position of the inverted triangular groove and the corner position of the upper inner wall of the V-shaped groove.

6. The raw material cleaning device for the production of thermoplastic elastomers according to claim 5, characterized in that: The inverted triangular groove is slidably and sealingly connected to two inverted triangular plates in the front-back direction; the two inverted triangular plates are slidably connected to the top pipe; a magnet is embedded at the inner edge of the V-shaped plate; the inverted triangular plates are made of a magnetic material and can be attracted by the corresponding V-shaped plates.

7. The raw material cleaning device for the production of thermoplastic elastomers according to claim 2, wherein: Shielding covers are provided at the front-back positions of the openings of the feeding hopper and the discharging hopper; under the action of the shielding covers, the V-shaped plates slide and seal in the V-shaped groove; working cavities are respectively formed between the two V-shaped plates and the front-back inner walls of the V-shaped groove; one-way air inlet holes are provided through the working cavities and the inner side of the filter cloth, and the one-way air inlet holes are arranged on the inner side of the right half section of the filter cloth; one-way air outlet holes are provided through the working cavities and the outside.

8. The raw material cleaning device for the production of thermoplastic elastomers according to claim 7, characterized in that: The orifice of the one-way air outlet hole faces a position slightly below the upper right end of the filter cloth.

9. A raw material cleaning process for the production of thermoplastic elastomers, which is applicable to the raw material cleaning device for the production of thermoplastic elastomers described in any one of claims 1-8, characterized in that: The steps of this process are as follows: S1: After closing the drain flange, pour the cleaning liquid into the V-shaped groove along the feeding hopper and fill it to half of the height of the V-shaped groove, and then pour the granular raw materials into the cleaning gap along the feeding hopper, and start the liquid pump and the motor to work; S2: The motor drives the left shaft to rotate and the sleeve on the left shaft to rotate, and under the cooperation of the fixed block and the movable block, the filter cloth moves back and forth while being driven, and the filter cloth kneads the granular raw materials in the cleaning gap; S3: The granular raw materials are kneaded first from top to bottom and then from bottom to top along the cleaning gap. The liquid pump will pump the cleaning liquid at the bottom of the V-shaped groove into the inverted triangular groove, and the cleaning liquid is discharged into the cleaning gap along the water permeable holes; S4: After the cleaning is completed, the granular raw materials are taken out of the cleaning gap by the filter cloth under the action of negative pressure and anti-slip strips, and finally the discharging process is completed along the discharging hopper.

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