A raw material cleaning device for thermoplastic elastomer production and cleaning process thereof

Abstract

The present invention relates to the field of raw material cleaning technology, specifically to a raw material cleaning device for thermoplastic elastomer production and a cleaning process thereof; it comprises an inverted triangle-shaped cleaning box and a bracket at the bottom of the cleaning box; a V-shaped groove is arranged inside the cleaning box; a feed hopper is arranged upward at the upper left end of the V-shaped groove, and a discharge hopper is arranged downwardly at the upper right end; the upper left end of the V-shaped groove is connected to the left shaft for forward and backward rotation, the upper right end is connected to the right shaft for forward and backward rotation, and the corner position is connected to the bottom shaft for forward and backward rotation; the outer walls of the left shaft, right shaft and bottom shaft are connected to the rotating sleeve; the three rotating sleeves are connected to the filter cloth for transmission; the outer wall of the filter cloth is evenly provided with anti-slip strips; the length direction of the anti-slip strips is consistent with the front-back direction; the present invention drives the anti-slip strips to transmit in the V-shaped groove through the filter cloth, so that the granular raw material is rubbed and cleaned by the filter cloth in the cleaning gap, and is smoothly taken out after cleaning, thereby ensuring the cleaning effect while achieving continuous cleaning.

Description

Technical Field

[0001] 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. Background Art

[0002] Thermoplastic elastomers (TPE / TPR), also known as artificial rubber or synthetic rubber, combine the excellent properties of traditional cross-linked vulcanized rubber, including high elasticity, aging resistance, and oil resistance, with the ease and versatility of processing common plastics. They can be produced using injection molding, extrusion, and blow molding, and 100% of the sprue edges can be directly reused after being crushed. This simplifies processing and reduces costs, making TPE / TPR the latest material to replace traditional rubber. Their environmentally friendly, non-toxic properties, pleasant feel, and attractive appearance make products more innovative.

[0003] Thermoplastic elastomer raw materials are usually in granular form. Before production, the raw materials need to be cleaned. The purpose of cleaning is to remove impurities, dust, oil, 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 toward the spray box, and the nozzle in the spray box will spray the granular raw materials. Although this method has the characteristics of continuity, the granular raw materials on the conveyor belt are not effectively sprayed during the spraying process, and the granular raw materials located deep in the drum 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 achieve contact between the granular raw materials and the cleaning liquid. After the cleaning is completed, the granular raw materials can be taken out of the drum. Although this method has a good cleaning effect, it requires frequent shutdowns to open and close the cover door, and cannot achieve continuous cleaning; the third is the assembly line type. The granular raw materials are directly poured into the cleaning tank. The stirring component in the cleaning tank stirs the granular raw materials in the cleaning tank to fully contact with the cleaning liquid, and finally the granular raw materials are salvaged. Although this method achieves continuity, the raw materials in the cleaning tank cannot be fished out in time after cleaning, resulting in over-cleaning. Summary of the Invention

[0005] In order to make up for the shortcomings of the existing technology, the present invention proposes a raw material cleaning device and a cleaning process for the production of thermoplastic elastomers. The present invention drives the anti-slip strip to transmit in the V-shaped groove through the filter cloth, so that the granular raw material is rubbed and cleaned by the filter cloth in the cleaning gap and is 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: a raw material cleaning device for thermoplastic elastomer production described in the present invention comprises an inverted triangle cleaning box and a bracket at the bottom of the cleaning box; a V-shaped groove is provided inside the cleaning box; 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 tilted downward; the upper left end of the V-shaped groove is connected to the left shaft for forward and backward rotation, the upper right end is connected to the right shaft for forward and backward rotation, and the corner position is connected to the bottom shaft for forward and backward rotation; the left shaft, right shaft and the outer wall of the bottom shaft are connected to the rotating sleeve; the three rotating sleeves are connected to the filter cloth in a transmission manner; the outer wall of the filter cloth is evenly provided with anti-slip strips; the length direction of the anti-slip strips is consistent with the front and rear direction; the front outer wall of the cleaning box is fixedly connected to the motor; the motor output shaft is fixedly connected to the left shaft; the upper left end of the filter cloth is provided with a first blocking block, and the lower right end is provided with a second blocking block; the V-shaped groove is filled with cleaning liquid; the bottom of the cleaning box is provided with a drainage flange connected to the V-shaped groove.

[0007] Preferably, the V-shaped groove is sealed to connect the V-shaped plate in a forward and backward sliding manner; the ends of the V-shaped plate extend 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 rotationally sealed to the V-plate; the sliding groove on the outer wall of the left shaft is slidingly connected to the sliding bar on the inner wall of the rotating sleeve; a first spring is abutted between the front end of the rotating sleeve on the left shaft and the front inner wall of the V-shaped groove; the rear end of the rotating sleeve on the left shaft is fixedly connected to the movable block; the rear inner wall of the V-shaped groove and the movable block are provided with fixed blocks corresponding to the movable block; a guide surface is provided at the contact position between the movable block and the fixed block.

[0008] Preferably, the corner position of the upper inner wall of the V-shaped groove is rotatably connected to the rolling column; the outer wall of the rolling column is tangent to the upper inner wall of the V-shaped groove.

[0009] Preferably, a vertical groove is provided on one side of the two V-shaped plates close to each other; a vertical block is connected in an up-and-down sliding manner in the vertical groove; the upper surface of the vertical block is connected to the upper end of the vertical groove via a second spring; and the bottom shaft is rotatably connected between the two vertical blocks.

[0010] Preferably, an inverted triangular groove is provided inside the cleaning box; the inverted triangular groove passes through the top pipe front and back; 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 through the lower position of the inverted triangular groove and the corner position of the upper inner wall of the V-shaped groove.

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

[0012] Preferably, shielding covers are provided in front and rear positions of the openings of the feed hopper and the discharge hopper; the V-shaped plate slides and seals in the V-shaped groove under the action of the shielding cover; working chambers are respectively formed between the two V-shaped plates and the front and rear inner walls of the V-shaped groove; a one-way air inlet is provided through the working chamber and the inner side of the filter cloth, and the one-way air inlet is provided on the inner side of the right half of the filter cloth; a one-way air outlet is provided through the working chamber and the outside world.

[0013] Preferably, the opening of the one-way air outlet is toward the lower right upper end of the filter cloth.

[0014] A process for cleaning raw materials for thermoplastic elastomer production is applicable to the above-mentioned device for cleaning raw materials for thermoplastic elastomer production. The process comprises the following steps:

[0015] 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. Then pour the granular raw materials into the cleaning gap along the feed hopper and start the liquid pump and motor.

[0016] S2: The motor drives the left shaft and the rotating sleeve on the left shaft to rotate, and with the cooperation of the fixed block and the movable block, the filter cloth moves forward and backward while being driven, and the filter cloth rubs the granular raw materials in the cleaning gap;

[0017] S3: The granular raw materials are rubbed along the cleaning gap from top to bottom and then from bottom to top. The liquid pump will pump the cleaning liquid at the bottom of the V-shaped groove into the inverted triangle groove, and the cleaning liquid will be discharged into the cleaning gap along the water permeable holes;

[0018] S4: After cleaning, 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 unloading process is completed through the discharge hopper.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention drives the anti-slip strip to transmit in the V-shaped groove through the filter cloth, so that the granular raw materials are rubbed and cleaned by the filter cloth in the cleaning gap and are smoothly taken out after cleaning, thereby ensuring the cleaning effect while achieving continuous cleaning.

[0021] 2. In the present invention, the granular raw materials entering the cleaning gap are spread out as the filter cloth moves back and forth, 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 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 rubbing effect of the filter cloth on the granular raw materials in the width direction.

[0022] 3. The present invention connects the vertical block elastically and slidably in the vertical groove, so that the cleaning gap can change with the amount of granular raw material entering, thereby ensuring the filter cloth's kneading effect on the granular raw material in the cleaning gap while being suitable for different feed amount requirements of granular materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 is a perspective view of the cleaning device of the present invention;

[0025] Figure 2 This is a diagram of the internal structure of the cleaning box of the present invention;

[0026] Figure 3 yes Figure 2 A three-dimensional image from another angle;

[0027] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 It is a transmission stereogram of the filter cloth in the present invention;

[0029] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0030] Figure 7 It is a cross-sectional view of the present invention in the front-back direction;

[0031] Figure 8 It is a cross-sectional view of the present invention in the left and right directions;

[0032] Figure 9 yes Figure 8 Enlarged view of point C in the middle;

[0033] Figure 10 It is a flow chart of the cleaning process of the present invention.

[0034] In the figure: cleaning box 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, pipeline 192, liquid pump 193, left shaft 2, slide 21, first spring 22, movable block 23, guide surface 231, fixed block 24, right shaft 3, bottom shaft 4, rotating sleeve 5, slide bar 51, filter cloth 6, anti-slip bar 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 chamber 75, one-way air inlet 76, one-way air outlet 77. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0036] like Figures 1 to 10 As shown, the present invention includes the following embodiments:

[0037] Example 1: A raw material cleaning device for thermoplastic elastomer production, comprising an inverted triangle-shaped cleaning box 1 and a bracket 11 at the bottom of the cleaning box 1; a V-shaped groove 12 is provided inside the cleaning box 1; a feed hopper 13 is provided at the upper left end of the V-shaped groove 12, and a discharge hopper 14 is provided at the upper right end. The upper left end of the V-shaped groove 12 is connected to the left shaft 2 by rotation, the upper right end is connected to the right shaft 3 by rotation, and the corner position is connected to the bottom shaft 4 by rotation; the outer walls of the left shaft 2, the right shaft 3 and the bottom shaft 4 It is connected to the rotating sleeve 5; the three rotating sleeves 5 are connected to the filter cloth 6 in a transmission manner; the outer wall of the filter cloth 6 is evenly provided with anti-slip strips 61; the length direction of the anti-slip strips 61 is consistent with the front-to-back direction; the front outer wall of the cleaning box 1 is fixedly connected to the motor 15; the output shaft of the motor 15 is fixedly connected to the left shaft 2; the upper left end of the filter cloth 6 is provided with a first blocking block 62, and the lower right end is provided with a second blocking block 63; the V-shaped groove 12 is filled with cleaning liquid; the bottom of the cleaning box 1 is provided with a drainage flange 16 connected to the V-shaped groove 12.

[0038] After closing the drain flange 16 at the bottom of the cleaning box 1, pour the cleaning liquid along the feed hopper 13, and the cleaning liquid will flow into the V-shaped groove 12. The liquid level of the cleaning liquid is at half the height of the V-shaped groove 12, and the motor 15 will start to work. During the working process of the motor 15, the left shaft 2 will be driven to rotate, and the rotation sleeve 5 on the left shaft 2 will be driven to rotate during the rotation of the left shaft 2. The inner wall of the filter cloth 6 and the outer wall of the rotation sleeve 5 are both anti-slip treated to avoid slipping. In this way, the filter cloth 6 will be driven to transmit on the outer walls of the three rotation sleeves 5 during the rotation of the left shaft 2. The upper half of the filter cloth 6 is transmitted from left to right, and the lower half of the filter cloth 6 is transmitted from right to left. During the transmission process, the filter cloth 6 will drive the outer wall. The anti-slip strip 61 is synchronously driven, and then the granular raw material, that is, the raw material for the production of thermoplastic elastomer, 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. This 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-slip strip 61 to move synchronously under the transmission, so that the filter cloth 6 drives the anti-slip strip 61 to rub the granular raw material in the cleaning gap downward. The granular raw material is immersed in the cleaning liquid and rubbed. After rubbing, the dirt on the surface of the granular raw material 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 material to cross the corner position of the upper inner wall of the V-shaped groove 12. After the granular material passes the lowest point of the cleaning gap, the anti-skid strip 61 rubs the granular material from bottom to top, and the granular material will gradually break away from the liquid surface of the cleaning liquid. The liquid on the surface of the granular material drips under the rubbing, so that the granular material is dehydrated after cleaning, and the cleaning liquid can be recovered to avoid waste. The granular material will gradually be taken out of the cleaning gap by the anti-skid strip 61, and the granular 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 to ensure that the filter The cloth 6 is adapted to the front-to-back direction 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. The cleaning liquid can be a mixture of degreasing and decontamination liquid; 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 is possible; compared with assembly line cleaning, the cleaned granular raw materials can be taken out in time and the discharge is timely;

[0039] 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 materials are rubbed and cleaned by the filter cloth 6 in the cleaning gap and are smoothly taken out after cleaning, thereby ensuring the cleaning effect while achieving continuous cleaning.

[0040] Example 2: The V-shaped groove 12 is sealed and connected to the V-shaped plate 7 in a forward and backward sliding manner; the ends of the V-shaped plate 7 extend 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 rotationally sealed and connected to the V-shaped plate 7; the sliding groove 21 on the outer wall of the left shaft 2 is slidingly connected to the sliding strip 51 on the inner wall of the rotating sleeve 5; the first spring 22 is abutted 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; the rear end of the rotating sleeve 5 on the left shaft 2 is fixedly connected to the movable block 23; the rear inner wall of the V-shaped groove 12 and the movable block 23 are provided with a fixed block 24 corresponding to the movable block 23; the contact position between the movable block 23 and the fixed block 24 is provided with a guide surface 231.

[0041] In this embodiment, the corner position of the upper inner wall of the V-shaped groove 12 is rotatably connected to the rolling column 17; the outer wall of the rolling column 17 is tangent to the upper inner wall of the V-shaped groove 12.

[0042] During the rotation of the motor 15, the left shaft 2 is driven to rotate, and during the rotation of the left shaft 2, the chute 21 on the outer wall is driven to 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, the chute 21 is slidably connected with the slide bar 51 on the inner wall of the corresponding rotating sleeve 5. Therefore, during the rotation of the left shaft 2, the rotating sleeve 5 on the outer wall of the left shaft 2 is driven to rotate. The rotating sleeve 5 on the outer wall of the left shaft 2 can move forward and backward along the length direction of the left shaft 2. The rear end of the rotating sleeve 5 on the left shaft 2 drives the movable block 23 to rotate. During the rotation of the movable block 23, it contacts the fixed block 24. The movable block The position where the movable block 23 contacts the fixed block 24 is provided with an inclined guide surface 231, so that the movable block 23 can smoothly pass over the fixed block 24. The movable block 23 will move forward in the process of passing over the fixed block 24. The movable block 23 will drive the connected rotating sleeve 5 forward in the process of moving forward. The sliding strip 51 on the inner wall of the corresponding rotating sleeve 5 slides along the slide groove 21 and moves forward. The corresponding rotating sleeve 5 will drive the two V-shaped plates 7 and the filter cloth 6 to move forward as a whole. 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. When the movable block 23 passes over the fixed block 24, the movable block 23 will move forward. After the fixing 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, and so on. In the process of the motor 15 driving the left shaft 2 to rotate, the filter cloth 6 can be driven and can move in the front and back directions at the same time. During the transmission process, the filter cloth 6 can contact with the rolling column 17. The rolling column 17 can reduce the friction between the filter cloth 6 and the corner of the upper inner wall of the V-shaped groove 12, thereby reducing the wear of the filter cloth 6. The filter cloth 6 can rub and clean the granular raw materials in the cleaning gap along the transmission direction of the filter cloth 6. In addition, since the filter cloth 6 can move back and forth as a whole , so that the granular raw materials in the cleaning gap can be rubbed in the front and rear directions, thereby improving the cleaning effect of the granular raw materials; in addition, the granular raw materials entering the cleaning gap are spread out under the front and rear movement of the filter cloth 6, so that the granular raw materials are evenly distributed in the width direction of the filter cloth 6, avoiding the uneven distribution of the granular raw materials in the width direction of the filter cloth 6 affecting the contact of the filter cloth 6, thereby ensuring the contact effect between the filter cloth 6 and the granular raw materials, thereby ensuring the rubbing effect of the filter cloth 6 on the granular raw materials in the width direction; the uniform distribution of the granular raw materials in the width direction of the filter cloth 6 is also conducive to uniform cleaning of the granular raw materials.

[0043] Example 3: A vertical groove 71 is provided on one side of the two V-shaped plates 7 close to each other; a vertical block 72 is connected to the vertical groove 71 for sliding up and down; the upper surface of the vertical block 72 is connected to the upper end of the vertical groove 71 by a second spring 73; the bottom shaft 4 is rotatably connected between the two vertical blocks 72.

[0044] After the granular raw materials enter the cleaning gap along the feed hopper 13, the granular raw materials will be rubbed along the cleaning gap under the drive of the filter cloth 6. When the amount of granular raw materials entering the cleaning gap is large, the granular raw materials in the cleaning gap will squeeze the upper half of the filter cloth 6 further downward, so that the cleaning gap is expanded, thereby causing the lower half of the filter cloth 6 to shrink 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, the vertical block 72 will be driven to move upward along the vertical slot 71 and overcome the elastic force of the second spring 73; when the granular raw materials enter the cleaning gap, the granular raw materials will be squeezed and squeezed. When the amount is small, the second spring 73 will push the vertical block 72 to move downward along the vertical slot 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, so that the lower half of the filter cloth 6 further bulges downward, and the upper half of the filter cloth 6 is tightened upward, thus making the cleaning gap smaller; this embodiment is elastically slidably connected to the vertical slot 71 by the vertical block 72, so that the cleaning gap can change with the amount of granular raw material entering, thereby ensuring the filter cloth 6 to rub the granular raw material in the cleaning gap while being suitable for different feed amount requirements of granular materials.

[0045] Example 4: An inverted triangular groove 18 is provided inside the cleaning box 1; the inverted triangular groove 18 passes through the top pipe 19 in front and back; a top hole 191 is provided 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 pipe 192; a water permeable hole 181 is provided through the lower position of the inverted triangular groove 18 and the corner position of the upper inner wall of the V-shaped groove 12.

[0046] In this embodiment, the inverted triangular groove 18 is sealingly connected to the two inverted triangular plates 182 in a front-rear sliding manner; the two inverted triangular plates 182 are slidingly connected to the top pipe 19; a magnet 74 is embedded in the inner edge of the V-shaped plate 7; the inverted triangular plate 182 is made of magnetic material and can be attracted by the corresponding V-shaped plate 7.

[0047] During the operation of the motor 15, the filter cloth 6 can be driven and rub the granular raw materials in the cleaning gap. The liquid pump 193 will extract the cleaning liquid at the bottom of the V-shaped groove 12. The cleaning liquid is discharged into the top pipe 19 by the liquid pump 193, and finally flows into the inverted triangle groove 18 along the top hole 191 in the middle of the top pipe 19. The cleaning liquid is discharged into the cleaning gap along the water-permeable hole 181 under the action of pressure, thereby impacting 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 to the V shaped groove 12 bottom, and so on; in the process of the motor 15 driving the filter cloth 6, the fixed block 24 and the movable block 23 are cooperated to make the filter cloth 6 move forward and backward as a whole, and the two V-shaped plates 7 will move synchronously with the front and back movement of the filter cloth 6, and the V-shaped plate 7 can drive the corresponding inverted triangular plate 182 to move back and forth through magnetic attraction. The spacing between the two inverted triangular plates 182 is adapted to the width of the filter cloth 6 and can change with the front and back position of the filter cloth 6, thereby ensuring that the cleaning liquid corresponds to the granular raw material in the cleaning gap, ensuring the cleaning effect while avoiding waste of cleaning liquid.

[0048] Example 5: Shielding covers 131 are provided at the front and rear positions of the openings of the feed hopper 13 and the discharge hopper 14; the V-shaped plate 7 slides and seals in the V-shaped groove 12 under the action of the shielding cover 131; working chambers 75 are respectively formed between the two V-shaped plates 7 and the front and rear inner walls of the V-shaped groove 12; a one-way air inlet hole 76 is provided through the working chamber 75 and the inner side of the filter cloth 6, and the one-way air inlet hole 76 is provided on the inner side of the right half of the filter cloth 6; a one-way air outlet hole 77 is provided through the working chamber 75 and the outside world.

[0049] In this embodiment, the opening of the one-way air outlet 77 faces the lower right upper end of the filter cloth 6 .

[0050] During the operation of the motor 15, the filter cloth 6 is driven to reciprocate back and forth, and the filter cloth 6 drives the two V-shaped plates 7 to reciprocate back and forth. In the process of the two V-shaped plates 7 moving forward, the pressure of the working chamber 75 at the front position increases, and the gas is discharged along the one-way air outlet 77, and impacts the granular raw materials unloaded from the filter cloth 6, so that the granular raw materials converge toward the middle position of the discharge hopper 14, thereby 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 of the filter cloth 6, so that a negative pressure is formed on the upper surface of the right half of the filter cloth 6, and the gas is discharged along the The right half of the filter cloth 6 leans against the upper surface and penetrates the filter cloth 6 to the inner side of the filter cloth 6, so that 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 negative pressure, making the filter cloth 6 more stable and smoothly carrying the granular raw materials out of the cleaning gap, thereby improving the stability of the unloading of the granular raw materials; since the working chambers 75 at the front and rear positions alternately increase and decrease, a negative pressure is always formed on the inner side of the right half of the filter cloth 6, ensuring that the granular raw materials are adsorbed on the filter cloth 6 and unloaded with the transmission of the filter cloth 6; the granular raw materials at the discharge hopper 14 position will also be quickly unloaded under the impact of the continuous airflow.

[0051] Example 6: A process for cleaning raw materials for thermoplastic elastomer production, which is applicable to the above-mentioned device for cleaning raw materials for thermoplastic elastomer production, and the steps of the process are as follows:

[0052] S1: After the drain flange 16 is closed, the cleaning liquid is poured into the V-shaped groove 12 along the feed hopper 13 and filled to half the height of the V-shaped groove 12. Then, the granular raw material is poured into the cleaning gap along the feed hopper 13, and the liquid pump 193 and the motor 15 are started;

[0053] S2: The motor 15 drives the left shaft 2 and the rotating sleeve 5 on the left shaft 2 to rotate, and the fixed block 24 and the movable block 23 cooperate to make the filter cloth 6 move forward and backward while driving, and the filter cloth 6 will rub the granular raw materials in the cleaning gap;

[0054] S3: The granular raw materials are rubbed along the cleaning gap from top to bottom and then from bottom to top. The liquid pump 193 pumps the cleaning liquid at the bottom of the V-shaped groove 12 into the inverted triangle groove 18. The cleaning liquid is then discharged into the cleaning gap along the water-permeable holes 181.

[0055] S4: After cleaning, the granular raw materials are taken out of the cleaning gap by the filter cloth 6 under the action of negative pressure and the anti-slip strips 61, and finally the unloading process is completed along the discharge hopper 14.

[0056] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material cleaning device for thermoplastic elastomer production, comprising a cleaning tank; characterized in that: A V-shaped groove is provided inside the cleaning box; 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 tilted downward; the upper left end of the V-shaped groove is connected to the left shaft for front and back rotation, the upper right end is connected to the right shaft for front and back rotation, and the corner position is connected to the bottom shaft for front and back rotation; the left shaft, right shaft and outer wall of the bottom shaft are connected to the rotating sleeve; the three rotating sleeves are connected to the filter cloth in a transmission manner; the outer wall of the filter cloth is evenly provided with anti-slip strips; the length direction of the anti-slip strips is consistent with the front and back direction; the left shaft is driven by a motor; a first blocking block is provided at the upper left end of the filter cloth, and a second blocking block is provided at the lower position of the upper right end; the V-shaped groove is filled with cleaning liquid; a drainage flange connected to the V-shaped groove is provided at the bottom of the cleaning box; The V-shaped groove is connected to the V-shaped plate in a front-to-rear sliding sealing manner; the ends of the V-shaped plate extend to the feed hopper and the discharge hopper; the ends of the rotating sleeves on the left and right shafts 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 rotating sleeve; the rear end of the rotating sleeve on the left shaft is fixedly connected to the movable block; the rear inner wall of the V-shaped groove is provided with a fixed block corresponding to the movable block; the contact position between the movable block and the fixed block is provided with a guide surface; A vertical groove is provided on one side of the two V-shaped plates close to each other; a vertical block is elastically slidably connected up and down in the vertical groove; the bottom shaft is rotatably connected between the two vertical blocks; An inverted triangular groove is provided inside the cleaning box; the inverted triangular groove passes through the top pipe in front and back; a top hole is provided downwardly through the middle section of the top pipe; a liquid pump is connected in series through a pipe between the front end of the top pipe and the bottom wall of the V-shaped groove; a water-permeable hole is provided through the lower position of the inverted triangular groove and the corner position of the upper inner wall of the V-shaped groove.

2. The device for cleaning raw materials for thermoplastic elastomer production according to claim 1, characterized in that: The corner position of the upper inner wall of the V-shaped groove is rotatably connected to the rolling column; the rolling column is tangent to the upper inner wall of the V-shaped groove.

3. The device for cleaning raw materials for thermoplastic elastomer production according to claim 1, characterized in that: The inverted triangular groove is sealed and connected to the two inverted triangular plates in a front-rear sliding manner; the two inverted triangular plates are slidably connected to the top pipe; a magnet is embedded in the inner edge of the V-shaped plate; the inverted triangular plate is made of magnetic material and can be attracted by the corresponding V-shaped plate.

4. The device for cleaning raw materials for thermoplastic elastomer production according to claim 1, characterized in that: Shielding covers are provided in front and rear positions of the openings of the feed hopper and the discharge hopper; the V-shaped plate slides and seals in the V-shaped groove under the action of the shielding cover; working chambers are formed between the two V-shaped plates and the front and rear inner walls of the V-shaped groove respectively; a one-way air inlet hole is provided through the working chamber and the inner side of the filter cloth, and the one-way air inlet hole is provided on the inner side of the right half of the filter cloth; a one-way air outlet hole is provided through the working chamber and the outside world.

5. The device for cleaning raw materials for thermoplastic elastomer production according to claim 4, characterized in that: The opening of the one-way air outlet is toward the lower right upper end of the filter cloth.

6. A process for cleaning raw materials for thermoplastic elastomer production, the process being applicable to the apparatus for cleaning raw materials for thermoplastic elastomer production according to any one of claims 1 to 5, characterized in that: 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. Then pour the granular raw materials into the cleaning gap along the feed hopper and start the liquid pump and motor. S2: The motor drives the left shaft and the rotating sleeve on the left shaft to rotate, and with the cooperation of the fixed block and the movable block, the filter cloth moves forward and backward while being driven, and the filter cloth rubs the granular raw materials in the cleaning gap; S3: The granular raw materials are rubbed along the cleaning gap from top to bottom and then from bottom to top. The liquid pump will pump the cleaning liquid at the bottom of the V-shaped groove into the inverted triangle groove, and the cleaning liquid will be discharged into the cleaning gap along the water permeable holes; S4: After cleaning, 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 unloading process is completed through the discharge hopper.

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