CN120422376A - Double-screw extrusion equipment for TPU plastic particle production - Google Patents
Double-screw extrusion equipment for TPU plastic particle productionInfo
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- CN120422376A CN120422376A CN202510918536.XA CN202510918536A CN120422376A CN 120422376 A CN120422376 A CN 120422376A CN 202510918536 A CN202510918536 A CN 202510918536A CN 120422376 A CN120422376 A CN 120422376A
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Abstract
本发明公开了一种TPU塑料粒子生产用双螺杆挤出设备，涉及塑料生产技术领域，包括机体，所述机体包括工作台，所述工作台的顶端安装有料筒，所述料筒的外表面一端设置有切割机构、限位机构与刮除机构，所述机体的底端设置有收料机构，实现了更快速的模具更换工作，先通过第一电动伸缩杆带动支撑架进行移动，使得支撑架上的刀架远离模具处，然后通过拉动拉杆带动滚珠进行移动，使得滚珠带动第一弹簧进行压缩，在滚珠远离固定槽时，便可将模具取下进行更换，反之，则可通过滚珠插入固定槽完成对模具的限位，给模具的更换提供了便捷，避免了现有技术中无法对模具进行快速更换的问题。
The present invention discloses a twin-screw extruder for producing TPU plastic particles, which relates to the technical field of plastic production. The device comprises a machine body, wherein the machine body comprises a workbench, a barrel is mounted on the top of the workbench, a cutting mechanism, a limiting mechanism and a scraping mechanism are arranged at one end of the outer surface of the barrel, and a material receiving mechanism is arranged at the bottom end of the machine body, thereby realizing faster mold replacement. First, a support frame is driven to move by a first electric telescopic rod so that a knife holder on the support frame is away from the mold. Then, a ball is driven to move by pulling a pull rod so that the ball drives a first spring to be compressed. When the ball is away from a fixed groove, the mold can be removed for replacement. Conversely, the mold can be limited by inserting the ball into the fixed groove, thereby providing convenience for mold replacement and avoiding the problem of being unable to quickly replace the mold in the prior art.
Description
Technical Field
The invention relates to the technical field of plastic production, in particular to double-screw extrusion equipment for TPU plastic particle production.
Background
TPU plastic particles are particles made of thermoplastic polyurethane materials, usually in the form of particles or particles and blocks, and TPU is an excellent elastomer material with good wear resistance, oil resistance, heat resistance and flexibility, and various plastic products can be produced by using extrusion, injection molding and other processing modes through the thermoplastic properties of the TPU plastic particles.
In the production process of plastic particles, a double-screw extruder is a key device, extrusion procedures of materials are realized through the rotation action of double screws, when the screws rotate, the materials are subjected to multiple forces such as compression, shearing, friction and the like, so that the temperature is gradually increased, in order to ensure that the materials can reach ideal processing temperature, a charging barrel of the extruder is usually provided with a heating device, the materials are enabled to reach a required melting state through the heating device, so that the materials are easier to flow and process, meanwhile, efficient mixing, dispersion and plasticization can be carried out between the screws, and the shearing force between the materials is enhanced through the double-screw staggered design, so that the materials with different components are fully mixed, and the materials subjected to full mixing, heating and plasticization are finally extruded through a die to form a required product shape.
However, the existing twin-screw extrusion equipment has the following defects:
1) In the prior art, when materials are extruded from a die, the materials are directly cut into particles by a cutter, the interval between the cutter and the die is close, a cutter rest is fixed on the die, the cutter rest is required to be detached firstly and then the die is required to be detached in the process of replacing the die, and the cutter rest is arranged on the die which is required to be replaced, and then the die is fixed on a charging barrel by a bolt, so that the operation is complicated, the die cannot be quickly replaced, and the use of the extrusion equipment is inconvenient;
2) In the process of cutting materials, the materials still have higher viscosity after being shaped by the die, so that the materials are easy to adhere to the cutters when being cut, and workers are required to clean the cutters regularly, so that the workload of the workers is increased;
3) Because the materials processed by the double-screw extrusion equipment in the prior art directly fall into the cooling box, the materials are easily accumulated at one end of the cooling box, the cooling effect of the materials is affected, and workers are required to manually flatten the materials, so that the working efficiency of the extrusion equipment is reduced.
We have therefore proposed a twin-screw extrusion device for the production of TPU plastic particles in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide double-screw extrusion equipment for TPU plastic particle production, which realizes faster die replacement work, firstly drives a support frame to move through a first electric telescopic rod, so that a tool rest on the support frame is far away from a die, then drives a ball to move through a pull rod, so that the ball drives a first spring to compress, and when the ball is far away from a fixed groove, the die can be taken down for replacement, otherwise, the limit of the die can be completed through the insertion of the ball into the fixed groove, so as to solve the problems proposed by the background art.
The double-screw extrusion equipment for TPU plastic particle production comprises a machine body, wherein the machine body comprises a workbench, a charging barrel is arranged at the top end of the workbench, a cutting mechanism, a limiting mechanism and a scraping mechanism are arranged at one end of the outer surface of the charging barrel, and a receiving mechanism is arranged at the bottom end of the machine body;
the top end of the workbench is fixedly provided with a supporting seat, the charging barrel is fixedly arranged at the top end of the supporting seat, the top end of the charging barrel is fixedly provided with a feeding hopper, the top end of the workbench is provided with a driving motor, the output end of the driving motor is provided with a connecting block, the outer surface of the connecting block is rotationally connected with a belt, the inner side of the belt is rotationally connected with another group of connecting blocks, one end of the outer surface of each connecting block is fixedly provided with an extrusion screw, the bottom end of the charging barrel is provided with a heater, the cutting mechanism comprises a fixing frame, the fixing frame is fixedly arranged on two sides of the outer surface of a charging barrel, a first electric telescopic rod is arranged at the top end of the charging barrel, a supporting frame is arranged at the output end of the first electric telescopic rod, the inner side of the supporting frame is slidably connected with the outer surface of the fixing frame, a knife rest and a guide plate are fixedly arranged on the inner side of the supporting frame, a second electric telescopic rod is arranged on one side of the outer surface of the knife rest, and a cutter is arranged at the output end of the second electric telescopic rod.
Preferably, the spout has all been seted up to the surface both sides of feed cylinder, the equal fixed mounting of internal surface both sides of support frame has T type piece, T type piece sliding connection is in the inboard of spout.
Preferably, the limiting mechanism comprises a die, the die is mounted at the bottom end of the charging barrel, inserting rods are fixedly mounted at four corners of the top end of the die, the bottom end of the charging barrel is provided with a slot, the inserting rods are slidably connected to the inner side of the slot, and the top end of each inserting rod is designed to be a chamfer.
Preferably, the fixed slot has been seted up to surface one side of inserted bar, the standing groove has all been seted up to the surface both sides of feed cylinder, the inboard of standing groove and fixed slot is all sliding connection has the ball, surface one end fixed mounting of ball has first spring and pull rod, surface one end fixed mounting of first spring has the stopper, stopper sliding connection is in the inboard of standing groove.
Preferably, the scraping mechanism comprises a fixed block, two groups of fixed blocks are fixedly arranged at the top end of the supporting frame, the inner side of the fixed block is slidably connected with a soft brush and a cushion block, and a group of cushion blocks and one side of the outer surface of the fixed block are provided with storage grooves.
Preferably, the inside sliding connection of accomodating the groove has the preforming, the mounting hole has all been seted up on the top of preforming, cushion and fixed block, the inboard rotation of mounting hole is connected with the threaded rod, the top fixed mounting of threaded rod has the commentaries on classics handle.
Preferably, the material receiving mechanism comprises a material receiving box, the material receiving box is arranged at the bottom end of the workbench, a liquid injection box is arranged at the inner side of the material receiving box, cooling liquid is poured into the inner side of the liquid injection box, a material discharging opening is formed in one side of the outer surface of the material receiving box, square grooves are formed in two sides of the outer surface of the material receiving box, and a supporting rod is fixedly arranged at the inner side of each square groove.
Preferably, the surface sliding connection of bracing piece has the sliding block, the equal fixed mounting in surface both sides of sliding block has the dog, surface one side fixed mounting of dog has the fly leaf, the bottom of sliding block and the inboard one end of square groove are equal fixed mounting have the second spring, the condenser is installed to the bottom of fly leaf, fluted and splitter box are seted up on the top of fly leaf, splitter box symmetric distribution is in the surface both sides of fly leaf.
Preferably, a third electric telescopic rod is arranged on one side of the outer surface of the material receiving box, a pushing plate is arranged at the output end of the third electric telescopic rod, sliding rails are slidably connected on two sides of the outer surface of the pushing plate, and the sliding rails are fixedly arranged on two sides of the inner surface of the material receiving box.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, through the arrangement of the fixing frame, the first electric telescopic rod, the supporting frame, the knife rest, the second electric telescopic rod, the cutter, the guide plate, the sliding chute, the T-shaped block, the limiting mechanism, the mould, the inserted link, the slot, the fixing slot, the placing slot, the ball, the first spring, the pull rod and the limiting block, the faster mould replacement work is realized, the supporting frame is driven by the first electric telescopic rod to move on the surface of the fixing frame, the knife rest on the supporting frame is far away from the mould, the moving path of the supporting frame is limited by the sliding chute and the T-shaped block, then the ball is driven by pulling the pull rod to move, the first spring is driven by the reset of the first spring to move back to the original position after the ball is far away from the fixing slot, then the ball is driven by the reset of the first spring to be aligned with the slot to insert, the ball is driven by the inclined cutting face to make extrusion in the process of the inserted link, the ball is driven by the ball to be compressed by the first spring, and the inner side of the ball is driven by the reset of the first spring to insert the ball into the fixing slot after the ball is completely inserted into the slot, so that the problem that the existing mould can not be completely replaced in the prior art can be completely replaced.
2. According to the invention, through the arrangement of the fixed block, the soft brush, the cushion block, the storage groove, the pressing piece, the mounting hole, the threaded rod and the rotating handle, more convenient maintenance work is realized, the threaded rod is driven to rotate away from the mounting hole on the pressing piece through the rotating handle, then the pressing piece is moved to the storage groove and is pulled out from the storage groove, the soft brush can be directly taken down from the inner side of the fixed block due to the flexibility of the soft brush, then a new soft brush is bent in the same way and placed into the inner side of the fixed block, then the pressing piece is placed back to the original position from the storage groove, the pressing piece is driven to limit the pressing piece through the rotating handle, then the threaded rod is driven to press the pressing piece downwards, the soft brush is prevented from being bent, the limit of the soft brush is completed, meanwhile, the soft brush is passed through in the moving process of the cutter, when the cutter is adhered with materials, the soft brush can be scraped off the materials and the aim of cleaning the cutter is achieved, and the condition that the materials are easy to adhere to the cutter in the prior art is improved.
3. According to the invention, through the arrangement of the material receiving box, the liquid injection box, the material discharging opening, the square groove, the supporting rod, the sliding block, the stop block, the movable plate, the second spring, the condenser, the groove, the shunt groove, the third electric telescopic rod, the push plate and the sliding rail, a more efficient cooling effect is realized, the movable plate is driven to move by the gravity caused by falling of the material, then the stop block is driven to move by the movable plate, the stop block drives the sliding block to move on the supporting rod, then the sliding block drives the second spring to stretch and retract, the movable plate is buffered by resetting of the second spring, then the material is driven to move by moving up and down of the movable plate, the material on the movable plate can be scattered around the movable plate in the process of moving up and down, meanwhile, the material in the groove can be cooled by the shunt groove, the material can be further cooled by the shunt groove, the material can be rapidly cooled by the cooling liquid in the liquid injection box, when the material is accumulated to a certain degree, the baffle at the material discharging opening can be removed, and then the movable plate is driven by the third electric telescopic rod to move the sliding rail, so that the problem that the material is easy to be discharged by the manual operation of a worker through the stretching and the sliding rail is solved, and the problem of the existing material is easy to be discharged by the manual and moved by the stretching the sliding plate.
Drawings
FIG. 1 is a perspective view of a front view structure of a twin-screw extrusion device for producing TPU plastic particles;
FIG. 2 is a side view in perspective of a twin-screw extrusion apparatus for producing TPU plastic particles according to the present invention;
FIG. 3 is a perspective view of a split structure in a twin-screw extrusion device for producing TPU plastic particles;
FIG. 4 is an enlarged perspective view of a cutting mechanism in a twin-screw extrusion apparatus for TPU plastic particle production of the present invention;
FIG. 5 is an enlarged perspective view of the explosive structure of the cutting mechanism in the double screw extrusion equipment for producing TPU plastic particles;
FIG. 6 is an enlarged perspective view of an explosion structure of a limiting mechanism in a double-screw extrusion device for producing TPU plastic particles;
FIG. 7 is an enlarged perspective view of the structure of the double screw extrusion equipment for producing TPU plastic particles in FIG. 6;
FIG. 8 is an enlarged perspective view of the explosive structure of the scraping mechanism in the twin-screw extrusion equipment for TPU plastic particle production of the present invention;
FIG. 9 is an enlarged perspective view of a cross-sectional structure of a receiving mechanism in a twin-screw extrusion apparatus for TPU plastic particle production according to the present invention;
Fig. 10 is an enlarged perspective view of the structure of the double screw extrusion equipment for producing TPU plastic particles of the present invention at B in fig. 9.
In the figure, 1, a machine body, 101, a workbench, 102, a charging barrel, 103, a supporting seat, 104, a feeding hopper, 105, a driving motor, 106, a connecting block, 107, a belt, 108, an extrusion screw, 109, a heater, 2, a cutting mechanism, 201, a fixing frame, 202, a first electric telescopic rod, 203, a supporting frame, 204, a tool rest, 205, a second electric telescopic rod, 206, a cutter, 207, a guide plate, 208, a sliding chute, 209, a T-shaped block, 3, a limiting mechanism, 301, a mould, 302, an inserting rod, 303, a slot, 304, a fixed slot, 305, a placing slot, 306, a ball, 307, a first spring, 308, a pull rod, 309, a limiting block, 4, a scraping mechanism, 401, a fixed block, 402, a soft brush, 403, a cushion block, 404, a storage slot, 405, a pressing sheet, 406, a mounting hole, 407, a threaded rod, 408, a rotating handle, 5, a material collecting mechanism, 501, a material collecting box, 502, a filling box, 503, a discharge opening, 504, a square slot, 505, a supporting rod, 506, a sliding block, 507, a sliding block, 509, a ball, 307, a movable plate, 307, a sliding rail, 510, a sliding plate, a sliding rail, a 512, a sliding plate, a 512, a sliding plate, a holding device, and a sliding plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the invention provides a technical scheme that a double-screw extrusion device for producing TPU plastic particles comprises a machine body, wherein the machine body comprises a workbench, a charging barrel is arranged at the top end of the workbench, a cutting mechanism, a limiting mechanism and a scraping mechanism are arranged at one end of the outer surface of the charging barrel, and a receiving mechanism is arranged at the bottom end of the machine body.
Embodiment 1, according to fig. 1-7, the top end of the workbench 101 is fixedly provided with a supporting seat 103, the barrel 102 is fixedly provided with a feeding hopper 104 at the top end of the supporting seat 103, the top end of the barrel 102 is fixedly provided with a driving motor 105, the output end of the driving motor 105 is provided with a connecting block 106, the outer surface of the connecting block 106 is rotationally connected with a belt 107, the inner side of the belt 107 is rotationally connected with another group of connecting blocks 106, one end of the outer surface of the connecting block 106 is fixedly provided with an extrusion screw 108, the bottom end of the barrel 102 is provided with a heater 109, the cutting mechanism 2 comprises a fixing frame 201, the fixing frame 201 is fixedly provided at both sides of the outer surface of the barrel 102, the top end of the barrel 102 is provided with a first electric telescopic rod 202, the output end of the first electric telescopic rod 202 is provided with a supporting frame 203, the inner side of the supporting frame 203 is slidingly connected with the outer surface of the fixing frame 201, and the inner side of the supporting frame 203 is fixedly provided with a knife rest 204 and a guide plate 207, one side of the outer surface of the knife rest 204 is provided with a second electric telescopic rod 205, the output end of the second electric telescopic rod 205 is provided with a cutter 206, both sides of the outer surface of the charging barrel 102 are provided with sliding grooves 208, both sides of the inner surface of the supporting frame 203 are fixedly provided with T-shaped blocks 209, the T-shaped blocks 209 are slidingly connected with the inner side of the sliding grooves 208, the limiting mechanism 3 comprises a die 301, the die 301 is arranged at the bottom end of the charging barrel 102, four corners of the top end of the die 301 are fixedly provided with a inserting rod 302, the bottom end of the charging barrel 102 is provided with a slot 303, the inserting rod 302 is slidingly connected with the inner side of the slot 303, the top end of the inserting rod 302 is designed as a chamfer, one side of the outer surface of the inserting rod 302 is provided with a fixed groove 304, both sides of the outer surface of the charging barrel 102 are provided with a placing groove 305, the inner sides of the placing groove 305 and the fixed groove 304 are slidingly connected with balls 306, a first spring 307 and a pull rod 308 are fixedly arranged at one end of the outer surface of the ball 306, a limiting block 309 is fixedly arranged at one end of the outer surface of the first spring 307, and the limiting block 309 is slidably connected to the inner side of the placing groove 305.
The whole embodiment 1 of the invention has the advantages that the quick replacement of the die 301 is realized, firstly, the cutter 206 is driven by the second electric telescopic rod 205 to cut off the material, the moving path of the material is limited by the guide plate 207, the material is prevented from falling on the ground, then, the support frame 203 is driven by the first electric telescopic rod 202 to move on the surface of the fixing frame 201, the knife rest 204 on the support frame 203 is far away from the die 301, the moving path of the support frame 203 is limited by the sliding groove 208 and the T-shaped block 209, then, the ball 306 is driven by the pulling rod 308 to move, the ball 306 drives the first spring 307 to compress, when the ball 306 is far away from the fixing groove 304, the die 301 can be removed for replacement, the reset of the first spring 307 drives the ball 306 to move back to the original position after the pulling rod 308 is released, then, the inserted rod 302 is aligned with the inserting groove 303, the extrusion is caused by the facing the ball 306 in the inserting process of the inserting rod 302, the ball 306 is driven by the ball 306 to compress, and the die 301 is completely inserted into the fixing groove 301, and the die 301 is replaced conveniently and the die 301 is replaced.
Embodiment 2, according to fig. 5 and 8, the scraping mechanism 4 comprises a fixed block 401, two groups of fixed blocks 401 are fixedly mounted on the top end of the supporting frame 203, the inner sides of the fixed blocks 401 are slidably connected with a soft brush 402 and a cushion block 403, a group of cushion blocks 403 and one side of the outer surface of the fixed block 401 are respectively provided with a storage groove 404, the inner sides of the storage grooves 404 are slidably connected with a pressing sheet 405, the cushion block 403 and the top end of the fixed block 401 are respectively provided with a mounting hole 406, the inner sides of the mounting holes 406 are rotatably connected with a threaded rod 407, and the top ends of the threaded rods 407 are fixedly provided with rotating handles 408.
The whole embodiment 2 of the invention has the advantages that more convenient maintenance is realized, the threaded rod 407 is driven to rotate away from the mounting hole 406 on the pressing sheet 405 by the rotating handle 408, then the pressing sheet 405 is moved to the storage groove 404, and the pressing sheet 405 is pulled out of the storage groove 404, as the flexibility of the soft brush 402 can directly take down the soft brush 402 from the inner side of the fixed block 401, then a new soft brush 402 is bent and placed into the inner side of the fixed block 401 in the same way, then the pressing sheet 405 is put back to the original position from the storage groove 404, the threaded rod 407 is driven by the rotating handle 408 to limit the pressing sheet 405, then the pressing sheet 405 is driven by the threaded rod 407 to press down the soft brush 402, bending of the soft brush 402 is prevented, limiting of the soft brush 402 is completed, convenience is provided for replacing the soft brush 402, meanwhile, the soft brush 402 can be passed through in the moving process of the cutter 206, when materials adhere to the cutter 206, the materials can be scraped off by the soft brush 402, the purpose of cleaning the cutter 206 is achieved, and the workload of workers is reduced.
According to embodiment 3, as shown in fig. 3, 9 and 10, the material receiving mechanism 5 includes a material receiving box 501, the material receiving box 501 is disposed at the bottom end of the workbench 101, a liquid filling box 502 is mounted at the inner side of the material receiving box 501, a cooling liquid is filled at the inner side of the liquid filling box 502, a material discharging opening 503 is opened at one side of the outer surface of the material receiving box 501, square grooves 504 are opened at two sides of the outer surface of the material receiving box 501, a supporting rod 505 is fixedly mounted at the inner side of the square grooves 504, a sliding block 506 is slidably connected to the surface of the supporting rod 505, a stop block 507 is fixedly mounted at two sides of the outer surface of the sliding block 506, a movable plate 508 is fixedly mounted at one side of the outer surface of the stop block 507, a condenser 510 is mounted at the bottom end of the sliding block 506 and at one end of the inner side of the square grooves 504, a groove 511 and a shunt groove 512 are opened at the top end of the movable plate 508, the shunt groove 512 is symmetrically distributed at two sides of the outer surface of the movable plate 508, a third electric telescopic rod 513 is mounted at one side of the outer surface of the material receiving box 501, a push plate 514 is mounted at the output end of the third electric telescopic rod 513, sliding rails are slidably connected to the two sides of the sliding rails 514, and 515 are fixedly mounted at two sides of the sliding rails 515.
The effects achieved in the whole embodiment 3 are as follows: the movable plate 508 is driven to move by gravity brought by falling of materials, then the movable plate 508 drives the stop block 507 to move, the stop block 507 drives the sliding block 506 to move on the supporting rod 505, then the sliding block 506 drives the second spring 509 to stretch and retract, the movable plate 508 is buffered by resetting of the second spring 509, then the movable plate 508 is driven to move by moving up and down, the materials can scatter on the movable plate 508 in the process of moving up and down, meanwhile, the materials on the movable plate 508 are cooled by the condenser 510, then the materials in the groove 511 can fall on the positions of the material receiving box 501 through the diversion grooves 512, and the materials are further cooled by the cooling liquid in the liquid injection box 502, so that the materials can be cooled rapidly, when the materials are accumulated to a certain extent, the partition plate at the position of the material discharging opening 503 can be taken down, the materials are discharged from the material discharging opening 503 by driving the pushing plate 514 through the third electric telescopic rod 513, the moving path of the pushing plate 514 is limited by the sliding rail, and the convenience in extruding equipment is improved.
The working principle of the whole equipment is that when the extrusion equipment is used, materials are firstly put into a feed cylinder 102 through a feed hopper 104, then a connecting block 106 is driven to rotate through a driving motor 105, so that the connecting block 106 drives a belt 107 to rotate, the other group of connecting blocks 106 are driven to rotate through the belt 107, and then an extrusion screw 108 is driven to rotate through the connecting block 106, so that the materials are compressed, The material cylinder 102 and the materials in the material cylinder are heated by the heater 109 to reach the required melting state under the action of multiple forces such as shearing and friction, waste gas generated in the material processing process is discharged through an exhaust port at the top of the material cylinder 102, the processed materials are extruded after being initially cooled and shaped by the die 301, then the cutter 206 is driven by the second electric telescopic rod 205 to cut off the materials, the materials can be scraped off by the soft brush 402 and the aim of cleaning the cutter 206 is fulfilled when the materials are adhered to the cutter 206, then the cut materials and the scraped materials fall on the groove 511 of the movable plate 508 through the inner side of the guide plate 207, the guide plate 207 limits the moving path of the materials to prevent the materials from falling on the ground, the movable plate 508 is driven by gravity caused by falling of the material, so that the movable plate 508 drives the stop block 507 to move, then the stop block 507 drives the sliding block 506 to move on the supporting rod 505, the sliding block 506 drives the second spring 509 to stretch and retract, the movable plate 508 is buffered by the reset of the second spring 509, then the material is driven to move by the up-and-down movement of the movable plate 508, the material can be scattered around the movable plate 508 in the up-and-down movement process, meanwhile, the material on the movable plate 508 is cooled secondarily by the condenser 510, then the material in the groove 511 can fall around the material receiving box 501 by the diversion grooves 512, and the material is cooled further by the cooling liquid in the liquid injection box 502, so that the material can be cooled rapidly, when the material is accumulated to a certain extent, the partition plate at the material discharging opening 503 can be taken down, then the third electric telescopic rod 513 drives the push plate 514 to discharge the material from the material outlet 503, the sliding rail 515 limits the moving path of the push plate 514, the convenience is provided for discharging the material, when the die 301 needs to be replaced to produce materials with different shapes, the first electric telescopic rod 202 drives the support frame 203 to move on the surface of the fixing frame 201, the knife rest 204 on the support frame 203 is far away from the die 301, the sliding chute 208 and the T-shaped block 209 limit the moving path of the support frame 203, then the pull rod 308 is pulled to drive the ball 306 to move, the ball 306 drives the first spring 307 to compress, when the ball 306 is far away from the fixing groove 304, the die 301 can be removed for replacement, the reset of the first spring 307 drives the ball 306 to move back to the original position after the pull rod 308 is released, then the inserting rod 302 on the replaced die 301 is aligned with the inserting groove 303, because the top of the inserted link 302 is designed to be a chamfer, the ball 306 is extruded by the chamfer in the inserting process of the inserted link 302, so that the inserted link 302 drives the ball 306 to move and drives the first spring 307 to compress by the ball 306, after the inserted link 302 is completely inserted into the slot 303, the ball 306 can be driven to be inserted into the inner side of the fixed slot 304 by the reset of the first spring 307, thereby completing the limit of the die 301, so that a worker can quickly replace the die 301, then the support 203 can be driven by the first electric telescopic link 202 to move back to the original position, the cutter 206 on the cutter frame 204 can be regulated to a proper distance with the die 301 by the movement of the support 203, when the soft brush 402 needs to be replaced, the threaded rod 407 can be driven by the rotary handle 408 to be rotated away from the mounting hole 406 on the pressing piece 405, and then the pressing piece 405 can be moved to the storage slot 404, and draw out preforming 405 from accomodating groove 404, because the flexibility of soft brush 402 can directly take it off from the inboard of fixed block 401, then buckle new soft brush 402 and put into the fixed block 401 inboard with the same mode, then put preforming 405 back to the normal position from accomodating groove 404, and drive threaded rod 407 through changeing handle 408 and carry out spacing to preforming 405, then drive preforming 405 through threaded rod 407 and push down soft brush 402, prevent soft brush 402 to produce the buckling, and accomplish spacing to soft brush 402, it is convenient to change soft brush 402.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The double-screw extrusion equipment for producing TPU plastic particles comprises a machine body (1) and is characterized in that the machine body (1) comprises a workbench (101), a charging barrel (102) is arranged at the top end of the workbench (101), a cutting mechanism (2), a limiting mechanism (3) and a scraping mechanism (4) are arranged at one end of the outer surface of the charging barrel (102), and a receiving mechanism (5) is arranged at the bottom end of the machine body (1);
The utility model discloses a cutting mechanism, including workstation (101) and cutting mechanism, supporting seat (103) is fixedly installed on the top of workstation (101), feed hopper (104) is fixedly installed on the top of feed cylinder (102), driving motor (105) are installed on the top of workstation (101), connecting block (106) are installed to the output of driving motor (105), the surface rotation of connecting block (106) is connected with belt (107), the inboard rotation of belt (107) is connected with another group connecting block (106), the surface fixed mounting of connecting block (106) has extrusion screw (108), heater (109) are installed to the bottom of feed cylinder (102), cutting mechanism (2) include mount (201), mount (201) fixed mounting is in the surface both sides of feed cylinder (102), first electric telescopic handle (202) are installed on the top of feed cylinder (102), support frame (203) are installed to the output of first electric telescopic handle (202), the inboard sliding connection of support frame (203) is in the surface of outer surface of support frame (205) and second outside surface (204) are installed to the fixed mounting of support frame (203), and a cutter (206) is arranged at the output end of the second electric telescopic rod (205).
2. The twin-screw extrusion equipment for TPU plastic particle production according to claim 1, wherein sliding grooves (208) are formed in two sides of the outer surface of the charging barrel (102), T-shaped blocks (209) are fixedly arranged on two sides of the inner surface of the supporting frame (203), and the T-shaped blocks (209) are connected to the inner sides of the sliding grooves (208) in a sliding mode.
3. The double-screw extrusion device for producing TPU plastic particles according to claim 1, wherein the limiting mechanism (3) comprises a die (301), the die (301) is installed at the bottom end of a charging barrel (102), inserting rods (302) are fixedly installed at four corners of the top end of the die (301), a slot (303) is formed in the bottom end of the charging barrel (102), the inserting rods (302) are slidably connected to the inner side of the slot (303), and the top ends of the inserting rods (302) are designed to be chamfer surfaces.
4. The twin-screw extrusion equipment for TPU plastic particle production of claim 3, wherein a fixed groove (304) is formed in one side of the outer surface of the inserted link (302), a placing groove (305) is formed in two sides of the outer surface of the charging barrel (102), balls (306) are slidably connected to the inner sides of the placing groove (305) and the fixed groove (304), a first spring (307) and a pull link (308) are fixedly arranged at one end of the outer surface of the balls (306), a limiting block (309) is fixedly arranged at one end of the outer surface of the first spring (307), and the limiting block (309) is slidably connected to the inner side of the placing groove (305).
5. The twin-screw extrusion equipment for TPU plastic particle production of claim 1, wherein the scraping mechanism (4) comprises fixed blocks (401), two groups of fixed blocks (401) are fixedly arranged at the top end of the supporting frame (203), soft brushes (402) and cushion blocks (403) are connected to the inner side of the fixed blocks (401) in a sliding mode, and storage grooves (404) are formed in one side of the outer surfaces of one group of cushion blocks (403) and one side of the outer surfaces of the fixed blocks (401).
6. The twin-screw extrusion equipment for TPU plastic particle production of claim 5, wherein the inside of the containing groove (404) is slidably connected with a pressing sheet (405), mounting holes (406) are formed in the top ends of the pressing sheet (405), the cushion block (403) and the fixed block (401), a threaded rod (407) is rotatably connected to the inside of the mounting holes (406), and a rotating handle (408) is fixedly arranged at the top end of the threaded rod (407).
7. The double-screw extrusion equipment for TPU plastic particle production of claim 1, wherein the material collecting mechanism (5) comprises a material collecting box (501), the material collecting box (501) is arranged at the bottom end of the workbench (101), a liquid injection box (502) is arranged at the inner side of the material collecting box (501), cooling liquid is filled at the inner side of the liquid injection box (502), a material outlet (503) is formed in one side of the outer surface of the material collecting box (501), square grooves (504) are formed in two sides of the outer surface of the material collecting box (501), and supporting rods (505) are fixedly arranged at the inner side of the square grooves (504).
8. The double-screw extrusion equipment for TPU plastic particle production of claim 7, wherein the surface of the supporting rod (505) is slidably connected with a sliding block (506), two sides of the outer surface of the sliding block (506) are fixedly provided with a stop block (507), one side of the outer surface of the stop block (507) is fixedly provided with a movable plate (508), the bottom end of the sliding block (506) and one end of the inner side of the square groove (504) are fixedly provided with a second spring (509), the bottom end of the movable plate (508) is provided with a condenser (510), the top end of the movable plate (508) is provided with a groove (511) and a shunt groove (512), and the shunt groove (512) is symmetrically distributed on two sides of the outer surface of the movable plate (508).
9. The twin-screw extrusion equipment for TPU plastic particle production of claim 7, wherein a third electric telescopic rod (513) is arranged on one side of the outer surface of the material receiving box (501), a push plate (514) is arranged at the output end of the third electric telescopic rod (513), sliding rails (515) are slidably connected to two sides of the outer surface of the push plate (514), and the sliding rails (515) are fixedly arranged on two sides of the inner surface of the material receiving box (501).
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| CN202510918536.XA CN120422376B (en) | 2025-07-04 | 2025-07-04 | Double-screw extrusion equipment for TPU plastic particle production |
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| CN202510918536.XA CN120422376B (en) | 2025-07-04 | 2025-07-04 | Double-screw extrusion equipment for TPU plastic particle production |
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| CN120422376B CN120422376B (en) | 2025-09-19 |
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| CN220700338U (en) * | 2023-08-22 | 2024-04-02 | 湖北鑫盛杰塑料科技有限公司 | Extrusion die orifice structure |
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| CN222431558U (en) * | 2024-05-27 | 2025-02-07 | 昆山琪彩塑胶有限公司 | A twin-screw extruder for processing plastic particles |
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2025
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| JPH09225942A (en) * | 1996-02-26 | 1997-09-02 | Mabuchi:Kk | Method of recovering waste plastic and recovering machine |
| WO2022110298A1 (en) * | 2020-11-26 | 2022-06-02 | 射阳县射阳港红太阳饲料厂 | Extrusion cutting device for pellet feed production |
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| CN120422376B (en) | 2025-09-19 |
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