Plastic extrusion traction brace automation device

Abstract

The invention discloses a plastic extrusion traction brace automation device, and relates to the technical field of plastic forming equipment, the plastic extrusion traction brace automation device comprises a rail moving assembly, a lifting clamping mechanism and a storage maintenance mechanism which are arranged on a screw extruder, a cooling pool and an air cooling section, and the rail moving assembly comprises a supporting frame arranged on one side of the cooling pool and the air cooling section; a guide rail arranged in the material conveying direction is arranged on the supporting frame, a moving platform is arranged on the guide rail, a first driving assembly for driving the moving platform to move along the guide rail is additionally arranged, the lifting clamping mechanism comprises a lifting table arranged on the moving platform, and a butt joint clamping assembly matched with an extrusion die of the screw extruder is arranged on the lifting table. In the whole process, a plurality of master batch belts do not need to be kneaded into a ball, the master batch belts are separated and pulled independently, material waste is reduced, workers do not need to guide and move the master batch belts along a cooling pool and an air cooling section, the manual pulling and pulling process is replaced, the automation degree is high, material waste is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic forming equipment. Background Art

[0002] A screw extruder relies on the pressure and shear force generated by the rotation of the screw, enabling the material to be fully plasticized and evenly mixed, and formed through a die. A plastic screw extruder is a key equipment for plastic processing. It exerts an extrusion effect on the plastic through the rotation of the screw, causing the plastic to move, increase pressure, and obtain partial heat through friction in the barrel, realizing the mixing and plasticization of the plastic. This equipment can evenly feed plastic particles or powders into the hopper of the extruder, and then gradually melt into a molten state under the shearing and heating of the screw. Finally, the desired shape is obtained through the die holes or dies of the extrusion head.

[0003] During the production process, the operation of a plastic screw extruder can be divided into several key steps: First is the raw material feeding, where plastic particles or powders are fed into the hopper; second is the plasticization, where the plastic particles melt into a molten state under the shearing and heating of the screw; then is the conveying, where the molten plastic is conveyed to the extrusion head under the thrust of the screw; next is the pressure increase, where the melt passes through a converging flow channel near the extrusion head to increase the pressure; finally is the forming, where the melt obtains the desired shape through the die holes or dies of the extrusion head, and then forms the final product after cooling and solidification.

[0004] During the normal plastic extrusion production process, due to customized requirements, the specifications of each batch of plastic production are different, and it is necessary to stop the machine and reload the material for production. Each time during the production process, the slightly soft masterbatch tape produced by the extrusion head needs to be manually pulled and placed into the cooling pool, air-cooling section, and pelletizing equipment in sequence. Since the quantity and diameter specifications of the masterbatch produced by different extrusion heads are different, in order to facilitate one-time placement, the initial extruded masterbatch tape has to be kneaded into a ball each time during the pulling process for subsequent pulling. When reaching the pelletizing equipment, a part of the kneaded masterbatch tape needs to be sheared and then each masterbatch tape is fed into the feeding end of the pelletizing equipment. When the extruder stops due to various emergencies such as extruder failures or factory power outages and then restarts, the manual pulling and feeding steps need to be re-adopted. The entire process results in relatively serious material waste and seriously affects production efficiency. Summary of the Invention

[0005] The purpose of the present invention is: to solve the above technical problems, the present invention provides an automatic device for plastic extrusion traction and striping, which replaces the manual traction and striping process, has a high degree of automation, reduces material waste, and improves work efficiency.

[0006] The present invention specifically adopts the following technical solutions to achieve the above purpose: The plastic extrusion pulling strip automation device includes a track moving component, a lifting and clamping mechanism, and a storage and maintenance mechanism arranged on the screw extruder, the cooling pool, and the air cooling section; The track moving assembly includes a support frame arranged on one side of the cooling pool and the air cooling section, the support frame is provided with a guide rail arranged along the material conveying direction, the guide rail is provided with a moving platform, and a first driving assembly is further provided to drive the moving platform to move along the guide rail; The lifting and clamping mechanism comprises a lifting platform arranged on the mobile platform, the mobile platform is provided with a lifting mechanism for controlling the lifting platform to move in a vertical direction, the lifting platform is provided with a docking clamping assembly adapted to the extrusion die of the screw extruder, the docking clamping assembly comprises a docking head adapted to the extrusion die, the docking head is provided with a plurality of clamping through holes, the docking head is provided with a clamping plate that slides in a vertical direction, the moving track of the clamping plate passes through the clamping through holes, and the lifting platform and the mobile platform are provided with a second driving assembly that prompts the clamping plate to move downward close to the clamping through holes; The storage and maintenance mechanism includes a storage bin arranged at the end of the air cooling section. Through the above scheme, setting the support frame to install the guide rail is convenient for the transformation of the existing production equipment, and setting the track moving component is convenient for the movement of the mobile platform along the guide rail between the screw extruder, the cooling pool and the air cooling section by setting the guide rail and the mobile platform. That is, when the plastic extrusion starts, the mobile platform is moved to the extrusion die of the extruder, and different extrusion dies can be corresponded through different docking joints. The extrusion head extrude the masterbatch belt and enters the clamping through hole on the docking joint. The second driving component drives the clamping plate to descend and clamp the masterbatch belt, and then the lifting mechanism drives the lifting platform to descend to the cooling pool below, and then the first driving component drives the mobile platform to move along the guide rail. The masterbatch tape is cooled during its continuous movement in the cooling pool, and then enters the air-cooling section for drying and further cooling, and finally enters the end of the air-cooling section. At this time, the masterbatch tape has completed cooling, and the second drive assembly can be used to release the clamping of the masterbatch tape on the splint, so that the masterbatch tape can enter the subsequent pelletizing equipment. Then the device resets the mobile platform and moves it into the storage bin for cooling. During the whole process, there is no need to pinch multiple masterbatch tapes into a ball. The masterbatch tapes are separated and pulled separately, which reduces material waste. There is no need for staff to guide and move the masterbatch tape along the cooling pool and the air-cooling section, which replaces the manual pulling process. It has a high degree of automation, reduces material waste, and improves work efficiency.

[0007] Furthermore, the first driving assembly includes a driving roller arranged on the mobile platform, the driving roller abuts against one side of the guide rail, a driven roller is arranged on the other side of the guide rail, a first driving motor is arranged on the mobile platform, and a first belt is arranged between the output shaft of the first driving motor and the driving roller. Through the above solution, the first driving motor rotates and drives the driving roller to rotate through the first belt drive. At this time, the driving roller and the driven roller clamp the guide rail. The rotation of the driving roller drives the moving platform to move along the guide rail, and the driven roller rotates synchronously along the guide rail.

[0008] Further, the lifting mechanism includes a lifting screw rod and a limiting rod arranged on the lifting platform. Both the lifting screw rod and the limiting rod pass upward through the moving platform. A gear ring screwed to the lifting screw rod is horizontally arranged on the moving platform. A rotating shaft at the same level as the gear ring is arranged on the moving platform. Helical teeth meshing with the gear ring are arranged on the outer peripheral wall of the rotating shaft. A driven wheel is arranged at the end of the rotating shaft. A second belt is arranged between the driven wheel and the first driving motor. A rotating handle is hinged on the moving platform. A first tensioning wheel and a second tensioning wheel are arranged in the middle of the rotating handle. The first tensioning wheel is arranged opposite to the first belt, and the second tensioning wheel faces the second belt. An elastic member is arranged on the rotating shaft of the rotating handle. The elastic member has a tendency to urge the rotating handle to rotate towards the first belt. Through the above solution, when the first driving motor is started in the static state, due to the tendency of the elastic member to urge the rotating handle to rotate towards the first belt, at this time, the first tensioning wheel rotates and abuts against the first belt, which urges the first belt drive to drive the driving roller to rotate. The rotation of the driving roller drives the moving platform to move along the guide rail to the extrusion head. By rotating the rotating handle to make it rotate away from the first belt direction, the first belt is idling, the driving roller stops rotating, and the moving platform stops at the corresponding position of the extruder. At this time, the second tensioning wheel moves towards the second belt and rotates and abuts against it. The first driving motor drives the second belt to rotate, and the second belt drives the driven wheel and the rotating shaft to rotate synchronously. The rotating shaft drives the gear ring to rotate through the helical teeth. Thus, the forward and reverse rotation of the first driving motor can drive the gear ring to rotate synchronously, and then the lifting screw rod drives the lifting platform to achieve vertical lifting. The vertical limiting rod is convenient for maintaining the attitude of the lifting platform during the lifting process. The moving platform can also be stopped at a predetermined position by turning off the first driving motor. Subsequently, the rotating handle is operated and the first driving motor is started to achieve the lifting of the lifting platform. This lifting process is accompanied by the continuous extrusion of the masterbatch tape after it is fixed. The extruded masterbatch tape continuously descends to the cooling pool along with the lifting platform and the docking head, which is convenient for the masterbatch tape to sink into the cooling pool for cooling after being pulled out. The operation is convenient and the degree of automation is high. At the same time, due to the gear ring being matched with the lifting screw rod and the limiting rod, it has a self-locking function, can maintain the fixed height of the lifting platform, is convenient for height adjustment, has strong adaptability, and the first driving motor can drive the first belt or the second belt according to requirements in cooperation with the rotating handle, with high working efficiency, more reasonable energy saving.

[0009] Furthermore, the clamp is slidably embedded in the docking head, and the lower end surface of the clamp extends into the clamping through hole. The second driving component includes a supporting air bag arranged on the upper end surface of the clamp, and the mobile platform is provided with a driving air pump connected to the supporting air bag through a pipeline, and the driving air pump is electrically connected to the power supply. Through the above scheme, when the docking joint is facing the extruder head of the extruder in the initial state, it is convenient for the extruder head to extrude the masterbatch tape and enter the clamping through hole on the docking joint. Then, the supporting airbag is driven to expand by driving the air pump, so that the clamping plate moves downward to clamp the masterbatch tape. As the lifting platform descends, the docking joint sinks into the cooling pool, and the masterbatch tape is initially cooled and solidified. The supporting airbag can be further driven to expand by driving the air pump, so that the clamping plate can tightly clamp the masterbatch tape, which is convenient for subsequent traction.

[0010] Furthermore, the lower end plate surface of the clamping plate and the clamping through hole are both made of heat-conducting materials, and the mobile platform and the lifting platform are provided with a clamping cooling assembly, including a water storage tank arranged at the upper end opening of the mobile platform, and a diversion pipeline is distributed in the clamping through hole, and the water storage tank and the diversion pipeline are connected by a pipeline, and the lower end opening of the diversion pipeline is arranged toward the cooling pool and the air-cooled section trough body, and a water supply nozzle is provided in the storage bin, and the water supply nozzle is located within the moving trajectory of the upper end opening of the water storage tank. Through the above scheme, the lower end plate surface of the splint and the clamping through hole are made of heat-conducting materials, and the clamping cooling component is cooperated. During the clamping process of the splint, the cooling water in the water storage tank continuously passes through the clamping through hole through the diversion pipeline, and finally falls into the cooling pool and the air-cooling section trough and gathers in the cooling pool. The whole process is convenient for rapid absorption and transfer of heat, and then promotes the rapid hardening of the masterbatch tape in the clamping through hole, which is convenient for subsequent traction work, reduces the high-temperature melting of the masterbatch tape, and reduces the difficulty of traction. At the same time, the water source in the water storage tank can be replenished at the water filling nozzle in the storage bin. The whole structure is reasonable, and the cooling water can enter the cooling pool for reuse.

[0011] Furthermore, a standby cooling assembly is provided in the storage bin, and the standby cooling assembly includes a spray head provided in the storage bin and connected to a water source, and the water supply nozzle and the spray head are connected to the water source via a three-way pipe. Through the above scheme, the spray head is set to quickly cool down the lifting platform and other components on the one hand, and on the other hand, it can clean the clamping holes, clamping plates and other components before operation to reduce dust adhesion and reduce the initial temperature, which is convenient for the rapid initial curing of the masterbatch.

[0012] Furthermore, the lower plate surface of the clamping plate is generally arc-shaped and is provided with a smooth heat-conducting layer on the surface. Through the above scheme, the lower plate surface of the splint is overall arc-shaped and is coated with a smooth thermal conductive layer on the surface. While facilitating heat conduction to promote the initial solidification of the masterbatch tape, it tries to avoid the masterbatch tape from being squeezed and flattened, thereby improving the integrity of the masterbatch tape.

[0013] Furthermore, travel switches are provided on the guide rail above the screw extruder and inside the storage bin, a shifting block is provided on the moving platform, and the travel switches are located within the moving track of the shifting block.

[0014] With the above solution, the guide rail has an arc transition at the connection between the cooling pool and the air-cooling section, reducing the disturbance during the traction process of the masterbatch tape. At the same time, travel switches are provided and cooperate with the shifting block to control the moving track of the moving platform, facilitating stopping or starting at corresponding positions.

[0015] Furthermore, a toggle switch is also provided on the guide rail at the connection between the cooling pool and the air-cooling section. The toggle switch is located within the moving track of the shifting block. A prompt broadcaster is provided on the moving platform, and a controller is additionally provided. The toggle switch, the travel switch, and the prompt broadcaster are all electrically connected to the controller.

[0016] With the above solution, a toggle switch is also provided on the guide rail at the connection between the cooling pool and the air-cooling section. The toggle switch, the travel switch, and the prompt broadcaster cooperate with the controller to perform fixed-point broadcasting of the moving track of the moving platform, facilitating the operation of the staff and improving the operating stability of the device.

[0017] The beneficial effects of the present invention are as follows: 1. The operation of the present invention is convenient. The support frame is provided to install the guide rail, facilitating the transformation of existing production devices. The track moving component is provided to facilitate the movement of the moving platform along the guide rail between the screw extruder, the cooling pool, and the air-cooling section by setting the guide rail and the moving platform. That is, when plastic extrusion starts, the moving platform is moved to the extrusion die of the extruder. Different extrusion dies can be corresponded through different docking heads. The extrusion head extrudes the masterbatch tape and enters the clamping through holes on the docking head. The second driving component drives the clamping plate to descend and clamp the masterbatch tape. Subsequently, the lifting mechanism drives the lifting table to descend into the lower cooling pool. Then, the first driving component drives the moving platform to move along the guide rail. The masterbatch tape is cooled during the continuous movement in the cooling pool and then enters the air-cooling section for blowing and drying and further cooling, and finally enters the end of the air-cooling section. At this time, the masterbatch tape is cooled. Then, through the second driving component, the clamping of the masterbatch tape by the clamping plate can be released, facilitating the masterbatch tape to enter the subsequent pelletizing equipment. Subsequently, the device resets and the moving platform moves into the storage bin for cooling. The whole process does not require multiple masterbatch tapes to be kneaded into a ball. The masterbatch tapes are separated and individually tractioned, reducing material waste. There is no need for staff to guide the masterbatch tape to move along the cooling pool and the air-cooling section, replacing the manual traction and drawing process. The automation degree is high, reducing material waste and improving work efficiency; 2. The lower plate surface of the clamping plate and the clamping through-hole are both made of heat-conducting materials. In cooperation with the clamping cooling assembly, during the clamping process of the clamping plate, the cooling water in the water storage tank continuously passes through the clamping through-hole via the diversion pipeline, and finally falls into the cooling pool, the air-cooling section tank body and accumulates in the cooling pool. The whole process facilitates the rapid absorption and transfer of heat, thereby promoting the rapid hardening of the masterbatch tape in the clamping through-hole, facilitating subsequent traction work, reducing the high-temperature melting of the masterbatch tape, reducing the traction difficulty. At the same time, the water source in the water storage tank can be replenished at the water replenishing nozzle in the storage bin. The whole structure is reasonable, and the cooling water can enter the cooling pool for reuse; 3. During the lifting process, with the masterbatch tape being pulled out after being fixed, it is convenient for the masterbatch tape to sink into the cooling pool for cooling after being pulled out. The operation is convenient and the automation degree is high. At the same time, due to the gear ring cooperating with the lifting screw and the limiting rod, it has a self-locking function, which can maintain the fixed height of the lifting platform. The height is convenient to adjust, and the adaptability is strong. Moreover, the first driving motor can drive the first belt or the second belt according to the needs in cooperation with the rotating handle, with high working efficiency and more reasonable energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present invention. For the convenience of display, some structures in the figure are the removal of the outer shell. The state of this figure is the state where the moving platform starts to move after the docking head clamps the masterbatch tape and enters the cooling pool; Figure 2 is Figure 1 The enlarged structural diagram of part A in Figure 3 is Figure 1 The enlarged structural diagram of part B in

[0019] Reference numerals: 11, screw extruder; 12, cooling pool; 13, air-cooling section; 14, support frame; 15, guide rail; 16, moving platform; 17, lifting platform; 18, docking head; 19, clamping through-hole; 20, clamping plate; 21, storage bin; 22, support airbag; 23, driving air pump; 24, water storage tank; 25, diversion pipeline; 26, water replenishing nozzle; 27, spray head; 28, lifting screw; 29, limiting rod; 30, gear ring; 31, rotating shaft; 32, driven wheel; 33, second belt; 34, rotating handle; 35, first tensioning wheel; 36, second tensioning wheel; 37, driving roller; 38, driven roller; 39, first driving motor; 40, first belt; 41, travel switch; 42, dialing block; 43, toggle switch; 44, prompt broadcaster. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention described and illustrated herein can generally be arranged and designed in a variety of different configurations.

[0021] Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0022] Embodiment 1 As Figure 1 and Figure 2 and Figure 3 shown, this embodiment provides an automated device for plastic extrusion traction and bar drawing, including a track moving component, a lifting clamping mechanism, and a storage and maintenance mechanism provided on a screw extruder 11, a cooling pool 12, and an air-cooling section 13; the cooling pool 12 is horizontally placed, the air-cooling section 13 is inclined upward, the air-cooling section 13 uses a blower to blow air, and the end of the air-cooling section 13 is docked with a granulating device. Among them, the extruder is a co-rotating parallel twin-screw extruder, and a high-speed mixer is paired with the parallel twin-screw extruder, with a maximum rotation speed of 2000 r / min.

[0023] Among them, the track moving component includes a support frame 14 provided on one side of the cooling pool 12 and the air-cooling section 13. The support frame 14 is fixed to the cooling pool 12 and the air-cooling section 13 by bolts, which is convenient for subsequent disassembly and assembly. A guide rail 15 arranged along the material conveying direction is installed on the support frame 14. The guide rail 15 has an arc transition at the connection of the cooling pool 12 and the air-cooling section 13. A moving platform 16 is provided on the guide rail 15. In addition, a first driving component for driving the moving platform 16 to move along the guide rail 15 is provided. The first driving component includes driving rollers 37 provided on the moving platform 16. A plurality of driving rollers 37 are provided and are driven by a chain among them. The driving rollers 37 abut against one side of the guide rail 15. A driven roller 38 is provided on the other side of the guide rail 15. For the convenience of movement, anti-slip rubber is laid on the outer peripheries of both the driven roller 38 and the driving rollers 37. The number of driven rollers 38 corresponds to that of the driving rollers 37. A first driving motor 39 is provided on the moving platform 16. A first belt 40 is provided between the output shaft of the first driving motor 39 and the driving rollers 37; The lifting and clamping mechanism includes a lifting platform 17 provided on the moving platform 16. There is a lifting mechanism on the moving platform 16 for controlling the vertical movement of the lifting platform 17. A docking and clamping assembly adapted to the extrusion die of the screw extruder 11 is provided on the lifting platform 17. The docking and clamping assembly includes a docking head 18 adapted to the extrusion die. A number of clamping through holes 19 are provided in the docking head 18. A clamping plate 20 that slides vertically is provided on the docking head 18. The movement trajectory of the clamping plate 20 passes through the clamping through holes 19. A second driving assembly for urging the clamping plate 20 to move downward and close to the clamping through holes 19 is provided on the lifting platform 17 and the moving platform 16. The clamping plate 20 is slidably embedded in the docking head 18, and the lower end face of the clamping plate 20 extends into the clamping through holes 19; The storage and maintenance mechanism includes a storage bin 21 provided at the end of the air-cooling section 13.

[0024] Such as Figure 1 and Figure 2 As shown, in order to improve the clamping effect of the masterbatch tape and enhance the operation adaptability of the device, the clamping plate 20 is slidably embedded in the docking head 18, and the lower end face of the clamping plate 20 extends into the clamping through holes 19. The second driving assembly includes a support airbag 22 provided on the upper end face of the clamping plate 20. A driving air pump 23 connected to the support airbag 22 through a pipeline is installed on the moving platform 16. The driving air pump 23 is electrically connected to the power supply. Both the lower end plate surface of the clamping plate 20 and the clamping through holes 19 are made of heat-conducting materials. The lower plate surface of the clamping plate 20 is integrally arc-shaped and a smooth heat-conducting layer (not shown in the figure) is laid on the surface. A clamping cooling assembly is provided on the moving platform 16 and the lifting platform 17, including a water storage tank 24 with an open upper end provided on the moving platform 16. A diversion pipeline 25 is distributed in the clamping through holes 19. The water storage tank 24 is connected to the diversion pipeline 25 through a pipeline. The lower end opening of the diversion pipeline 25 faces the cooling tank 12 and the trough of the air-cooling section 13. A water replenishing nozzle 26 is provided in the storage bin 21, and the water replenishing nozzle 26 is located within the moving trajectory of the open upper end of the water storage tank 24.

[0025] Therefore, when the initial state is such that the docking head 18 is directly opposite to the extrusion head of the extruder, it is convenient for the extrusion head to extrude the masterbatch tape and enter the clamping through-hole 19 on the docking head 18. Subsequently, by driving the support airbag 22 to inflate through the driving air pump 23, the clamping plate 20 is urged to move downward to clamp the masterbatch tape. The lower plate surface of the clamping plate 20 is integrally arc-shaped and is provided with a heat-conducting layer with a smooth surface. While facilitating heat conduction to promote the preliminary curing of the masterbatch tape, it also tries to avoid squeezing the masterbatch tape flat, improving the integrity of the masterbatch tape and facilitating the subsequent operation of the pelletizing equipment. As the lifting platform 17 descends and the docking head 18 sinks into the cooling pool 12, the masterbatch tape is preliminarily cooled and cured. The driving air pump 23 can be further used to promote the inflation of the support airbag 22, causing the clamping plate 20 to tightly clamp the masterbatch tape, facilitating subsequent traction. The lower end plate surface of the clamping plate 20 and the clamping through-hole 19 are both made of heat-conducting materials. In cooperation with the clamping and cooling assembly, during the clamping process of the clamping plate 20, the cooling water in the water storage tank 24 continuously passes through the diversion pipeline 25 through the clamping through-hole 19, and finally falls into the cooling pool 12 and the tank body of the air-cooling section 13 and accumulates in the cooling pool 12. The whole process facilitates the rapid absorption and transfer of heat, thereby promoting the rapid hardening of the masterbatch tape in the clamping through-hole 19, facilitating subsequent traction work, reducing the high-temperature melting of the masterbatch tape, and reducing the traction difficulty. At the same time, the water source in the water storage tank 24 can be replenished at the water replenishing nozzle 26 in the storage bin 21. The whole structure is reasonable, and the cooling water can enter the cooling pool 12 for reuse.

[0026] Further, in order to improve the initial cooling effect of the masterbatch tape, as Figure 1 and Figure 3 shown, a standby cooling assembly is provided in the storage bin 21. The standby cooling assembly includes a spray head 27 provided in the storage bin 21 and connected to the water source. The water replenishing nozzle 26 and the spray head 27 are connected to the water source through a tee pipeline. Setting the spray head 27 can, on the one hand, quickly cool down components such as the lifting platform 17, and on the other hand, can clean components such as the clamping through-hole 19 and the clamping plate 20 before operation, reduce dust adhesion, and at the same time lower the initial temperature, facilitating the rapid preliminary curing of the masterbatch tape.

[0027] After the masterbatch tape is initially fixed, the docking head 18 can be lowered along the lifting platform 17 into the cooling pool 12, as Figure 1 and Figure 2 and Figure 3As shown in the figure, the lifting mechanism includes a lifting screw rod 28 and a limiting rod 29 provided on the lifting platform 17. Both the lifting screw rod 28 and the limiting rod 29 pass upward through the moving platform 16. A gear ring 30 screwed to the lifting screw rod 28 is horizontally arranged on the moving platform 16. A rotating shaft 31 at the same level as the gear ring 30 is arranged on the moving platform 16. Helical teeth (not shown in the figure) meshing with the gear ring 30 are arranged on the outer peripheral wall of the rotating shaft 31. A driven wheel 32 is arranged at the end of the rotating shaft 31. A second belt 33 is arranged between the driven wheel 32 and the first driving motor 39. A rotating handle 34 is hinged on the moving platform 16. A first tensioning wheel 35 and a second tensioning wheel 36 are arranged in the middle of the rotating handle 34. The first tensioning wheel 35 is arranged opposite to the first belt 40. The second tensioning wheel 36 is arranged facing the second belt 33. An elastic member is arranged on the rotating shaft 31 of the rotating handle 34. In this embodiment, the elastic member is a torsion spring, and the elastic member has a tendency to urge the rotating handle 34 to rotate towards the first belt 40.

[0028] Therefore, when the first driving motor 39 is started in the stationary state, due to the tendency of the elastic member to urge the rotating handle 34 to rotate towards the first belt 40, at this time, the first tensioning wheel 35 is in rotational contact with the first belt 40, which causes the first belt 40 to drive the driving roller 37 to rotate. The rotation of the driving roller 37 drives the moving platform 16 to move along the guide rail 15 to the extrusion head. By rotating the rotating handle 34 to make it rotate away from the first belt 40, the first belt 40 is idling, the driving roller 37 stops rotating, and the moving platform 16 stops at the corresponding position of the extruder. At this time, the second tensioning wheel 36 moves towards the second belt 33 and rotates into contact. The first driving motor 39 drives the second belt 33 to rotate, and the second belt 33 drives the driven wheel 32 and the rotating shaft 31 to rotate synchronously. The rotating shaft 31 drives the gear ring 30 to rotate through the helical teeth. Then, by providing the forward and reverse rotation of the first driving motor 39, the gear ring 30 can be driven to rotate synchronously, and then the lifting screw rod 28 drives the lifting platform 17 to realize vertical lifting. The vertical limiting rod 29 is convenient for maintaining the posture of the lifting platform 17 during the lifting process. It is also possible to stop the moving platform 16 at a predetermined position by turning off the first driving motor 39. Subsequently, the rotating handle 34 is operated and the first driving motor 39 is started to realize the lifting of the lifting platform 17. This lifting process is accompanied by the continuous extrusion of the masterbatch tape after it is fixed. The extruded masterbatch tape continuously descends to the cooling pool 12 along with the lifting platform 17 and the docking head 18, which is convenient for the masterbatch tape to sink into the cooling pool 12 for cooling after being pulled out. The operation is convenient and the degree of automation is high. At the same time, because the gear ring 30 is matched with the lifting screw rod 28 and the limiting rod 29, it has a self-locking function, can maintain the fixed height of the lifting platform 17, is convenient for height adjustment, has strong adaptability, and the first driving motor 39 can drive the first belt 40 or the second belt 33 according to the needs in cooperation with the rotating handle 34, with high working efficiency, more reasonable energy saving.

[0029] Working process: the first driving motor 39 is turned on in a static state, and the elastic member causes the rotating handle 34 to rotate in the direction of the first belt 40. At this time, the first tensioning wheel 35 is in rotational contact with the first belt 40, causing the first belt 40 to drive the driving roller 37 to rotate, and the driving roller 37 drives the movable platform 16 to move along the guide rail 15 to the extruder head. The rotating handle 34 is caused to rotate away from the first belt 40, and the first belt 40 is unloaded. The driving roller 37 stops rotating, and the movable platform 16 stops at the corresponding position of the extruder. The extruder head extrude the masterbatch belt and enters the clamping through hole 19 on the docking head 18. The air pump 23 is driven to drive the supporting airbag 22 to swell, causing the clamping plate 20 to move downward and clamp the masterbatch belt. The second tensioning wheel 36 moves toward the second belt 33 and rotates to abut against the first driving motor 39, and the second belt 33 drives the driven wheel 32 and the rotating shaft 31 to rotate synchronously. The rotating shaft 31 drives the gear ring 30 to rotate through the helical teeth, and then the forward and reverse rotation of the first driving motor 39 can drive the gear ring 30 to rotate synchronously, and then the lifting screw 28 drives the lifting platform 17 to realize vertical lifting. The vertical limit rod 29 is convenient for maintaining the posture of the lifting platform 17 during the lifting process. The first driving motor 39 can also be turned off to stop the mobile platform 16 at a predetermined position. Then, the rotating handle 34 is operated and the first driving motor 39 is started to realize the lifting and lowering of the lifting platform 17. The descending process is accompanied by the continuous extrusion of the masterbatch belt after it is fixed. The extruded masterbatch belt is continuously descended to the cooling pool 12 along with the lifting platform 17 and the docking joint 18, so that the masterbatch belt can be dropped into the cooling pool 12 for cooling after being pulled out. The operation is convenient and the degree of automation is high. At the same time, since the gear ring 30 is matched with the lifting screw 28 and the limit rod 29, it has a self-locking function, which can maintain the fixed height of the lifting platform 17, and the height is convenient to adjust to adapt to cooling pools 12 of different heights. The first drive motor 39 can drive the first belt 40 or the second belt 33 according to the needs in conjunction with the rotating handle 34, thereby realizing the movement of the mobile platform 16 or the lifting of the lifting platform 17, with high work efficiency and more reasonable energy saving. Subsequently, the first drive motor 39 drives the mobile platform 16 to pass through the cooling pool 12 in sequence. The masterbatch tape is cooled during the continuous movement in the cooling pool 12 and then enters the air cooling section 13 for drying and further cooling by blowing air, and finally enters the end of the air cooling section 13. At this time, the masterbatch tape has completed cooling, and the second driving component can be used to release the clamping of the masterbatch tape by the clamping plate 20, so that the masterbatch tape can enter the subsequent pelletizing equipment. Then the device resets the mobile platform 16 and moves it into the storage bin 21 for cooling. During the whole process, there is no need to squeeze multiple masterbatch tapes into a ball. The masterbatch tapes are separated and pulled separately, which reduces material waste. There is no need for staff to guide and move the masterbatch tape along the cooling pool 12 and the air cooling section 13, which replaces the manual pulling and pulling process. It has a high degree of automation, reduces material waste, and improves work efficiency.

[0030] Embodiment 2 The structure of the second embodiment is basically the same as that of the first embodiment, except that Figure 1 and Figure 2 and Figure 3 As shown, in order to further improve the operating stability of the device and assist the staff to grasp the status of the device, the guide rail 15 is provided with a travel switch 41 above the screw extruder 11 and in the storage bin 21, and a dial block 42 is provided on the mobile platform 16. The travel switch 41 is located within the moving track of the dial block 42. The guide rail 15 is also provided with a toggle switch 43 at the connection between the cooling pool 12 and the air cooling section 13. The toggle switch 43 is located within the moving track of the dial block 42. A reminder speaker 44 is provided on the mobile platform 16, and a controller is also provided. The toggle switch 43, the travel switch 41, and the reminder speaker 44 are all electrically connected to the controller. Therefore, the guide rail 15 is in an arc transition at the junction of the cooling pool 12 and the air cooling section 13 to reduce the disturbance to the masterbatch belt traction process. At the same time, a travel switch 41 is provided, and the moving trajectory of the mobile platform 16 can be controlled in cooperation with the dial block 42, so as to facilitate stopping or starting at the corresponding position. At the same time, a toggle switch 43 is also provided at the junction of the cooling pool 12 and the air cooling section 13 of the guide rail 15. The toggle switch 43, the travel switch 41, the prompt speaker 44 and the controller can be used to broadcast the moving trajectory of the mobile platform 16 at a fixed point, which is convenient for the staff to operate and improves the operation stability of the device. Further improve the automation and convenience of the equipment.

[0031] Embodiment 3 Embodiment 3 is basically the same in structure as Embodiment 1 and Embodiment 2, except that, in Embodiment 3, the rotating handle 34 is driven by a motor to rotate along the rotating shaft 31, and no manual operation is required, and no elastic member is required. It is controlled by PLC, and the toggle switch 43, the travel switch 41, and the prompt announcer 44 are linked, so that the motor drives the rotating handle 34 to cause the rotating handle 34 to rotate away from the first belt 40, the first belt 40 is unloaded, the driving roller 37 stops, and the mobile platform 16 stops at the corresponding position of the extruder. At this time, the second tensioning wheel 36 moves toward the second belt 33 and rotates to abut, the first driving motor 39 drives the second belt 33 to rotate, and the second belt 33 drives the driven wheel 32 and the rotating shaft 31 to rotate synchronously, and the rotating shaft 31 drives the gear ring 30 to rotate through the helical teeth, and then the forward and reverse rotation of the first driving motor 39 can drive the gear ring 30 to rotate synchronously, and then the lifting screw 28 drives the lifting platform 17 to realize vertical lifting, and automatically switches the lifting platform 17 to lift in the vertical direction and the moving platform 16 to move along the track, and automatically switches the action state to improve the automation of the device.

[0032] Implementation principle: The present invention is easy to operate. The support frame 14 is provided to install the guide rail 15, which is convenient for the transformation of the existing production device. The track moving component is provided to facilitate the movement of the mobile platform 16 along the guide rail 15 between the screw extruder 11, the cooling pool 12, and the air cooling section 13 by setting the guide rail 15 and the mobile platform 16. That is, when the plastic extrusion starts, the mobile platform 16 is moved to the extrusion die of the extruder. Different extrusion dies can be corresponded to by different docking joints 18. The extrusion head extrude the masterbatch tape and enter the clamping through hole 19 on the docking joint 18. The second driving component drives the clamping plate 20 to descend and clamp the masterbatch tape. The air pump 23 drives the supporting airbag 22 to expand, so that the clamping plate 20 moves downward and clamps the masterbatch tape. Then the lifting mechanism drives the lifting platform 17 to descend to the bottom. In the cooling pool 12, the mobile platform 16 is then driven by the first driving component to move along the guide rail 15. The masterbatch tape is cooled during continuous movement in the cooling pool 12, and then enters the air-cooling section 13 for drying and further cooling through air blowing, and finally enters the end of the air-cooling section 13. At this time, the masterbatch tape has completed cooling, and the second driving component can be used to release the clamping of the masterbatch tape by the clamping plate 20, so that the masterbatch tape can enter the subsequent pelletizing equipment. The device then resets the mobile platform 16 and moves it into the storage bin 21 for cooling. During the entire process, there is no need to pinch multiple masterbatch tapes into a ball. The masterbatch tapes are separated and pulled separately, which reduces material waste. There is no need for staff to guide and move the masterbatch tape along the cooling pool 12 and the air-cooling section 13, which replaces the manual pulling and pulling process. It has a high degree of automation, reduces material waste, and improves work efficiency.

[0033] It should be noted that the component connection relationships not specifically mentioned in this application are assumed to adopt the existing technology. Since they do not involve the invention and are widely used in the existing technology, the structural connection relationships are not described in detail.

Claims

1. Plastic extrusion traction strip automation device, characterized in that: It comprises a track moving assembly, a lifting and clamping mechanism, and a storage and maintenance mechanism which are arranged on a screw extruder (11), a cooling pool (12), and an air cooling section (13); The track moving assembly comprises a support frame (14) arranged on one side of the cooling pool (12) and the air cooling section (13); the support frame (14) is provided with a guide rail (15) arranged along the material conveying direction; the guide rail (15) is provided with a moving platform (16); and a first driving assembly is further provided for driving the moving platform (16) to move along the guide rail (15); The lifting and clamping mechanism comprises a lifting platform (17) arranged on the mobile platform (16), the mobile platform (16) is provided with a lifting mechanism for controlling the lifting platform (17) to move in a vertical direction, the lifting platform (17) is provided with a docking clamping assembly adapted to the extrusion die of the screw extruder (11), the docking clamping assembly comprises a docking head (18) adapted to the extrusion die, the docking head (18) is provided with a plurality of clamping through holes (19), the docking head (18) is provided with a clamping plate (20) that slides in a vertical direction, the moving trajectory of the clamping plate (20) passes through the clamping through holes (19), and the lifting platform (17) and the mobile platform (16) are provided with a second driving assembly that causes the clamping plate (20) to move downward and close to the clamping through holes (19); The storage and maintenance mechanism comprises a storage bin (21) arranged at the end of the air cooling section (13).

2. The plastic extrusion pulling strip automation device according to claim 1 is characterized in that: The first driving assembly comprises a driving roller (37) arranged on the mobile platform (16), the driving roller (37) abuts against one side of the guide rail (15), a driven roller (38) is arranged on the other side of the guide rail (15), a first driving motor (39) is arranged on the mobile platform (16), and a first belt (40) is arranged between the output shaft of the first driving motor (39) and the driving roller (37).

3. The plastic extrusion pulling strip automation device according to claim 2 is characterized in that: The lifting mechanism comprises a lifting screw (28) and a limiting rod (29) which are arranged on the lifting platform (17); the lifting screw (28) and the limiting rod (29) both pass through the moving platform (16) upwards; a gear ring (30) which is screwed to the lifting screw (28) is horizontally arranged on the moving platform (16); a rotating shaft (31) which is at the same level as the gear ring (30) is arranged on the moving platform (16); an outer peripheral wall of the rotating shaft (31) is provided with helical teeth which mesh with the gear ring (30); a driven wheel (32) is arranged at the end of the rotating shaft (31); and the driven wheel (32) is arranged at the bottom of the rotating shaft (31); A second belt (33) is provided between the first driving motor (32) and the first driving motor (39), a hinged rotating handle (34) is provided on the mobile platform (16), a first tensioning wheel (35) and a second tensioning wheel (36) are provided in the middle of the rotating handle (34), the first tensioning wheel (35) is arranged opposite to the first belt (40), and the second tensioning wheel (36) is arranged toward the second belt (33), and an elastic member is provided on the rotating shaft (31) of the rotating handle (34), and the elastic member has a tendency to cause the rotating handle (34) to rotate in the direction of the first belt (40).

4. The plastic extrusion pulling strip automation device according to claim 1 is characterized in that: The clamping plate (20) is slidably embedded in the docking head (18), and the lower end surface of the clamping plate (20) extends into the clamping through hole (19). The second driving component includes a supporting air bag (22) arranged on the upper end surface of the clamping plate (20). The mobile platform (16) is provided with a driving air pump (23) connected to the supporting air bag (22) through a pipeline, and the driving air pump (23) is electrically connected to a power supply.

5. The plastic extrusion pulling strip automation device according to claim 4 is characterized in that: The lower end plate surface of the clamping plate (20) and the clamping through hole (19) are both made of heat-conducting materials. The mobile platform (16) and the lifting platform (17) are provided with a clamping cooling assembly, including a water storage tank (24) arranged at the upper end opening of the mobile platform (16). A guide pipe (25) is distributed in the clamping through hole (19). The water storage tank (24) and the guide pipe (25) are connected by a pipeline. The lower end opening of the guide pipe (25) is arranged toward the cooling pool (12) and the air cooling section (13) tank body. A water supply nozzle (26) is provided in the storage bin (21), and the water supply nozzle (26) is located in the moving track of the upper end opening of the water storage tank (24).

6. The plastic extrusion pulling strip automation device according to claim 5, characterized in that: A standby cooling assembly is provided in the storage bin (21), and the standby cooling assembly comprises a spray head (27) provided in the storage bin (21) and connected to a water source, and the water supply nozzle (26) and the spray head (27) are connected to the water source via a three-way pipe.

7. The plastic extrusion pulling strip automation device according to claim 4 is characterized in that: The lower plate surface of the clamping plate (20) is arc-shaped as a whole and is provided with a heat-conducting layer with a smooth surface.

8. The plastic extrusion pulling strip automation device according to claim 1 is characterized in that: The guide rail (15) forms an arc transition at the junction of the cooling pool (12) and the air cooling section (13); the guide rail (15) is provided with a travel switch (41) above the screw extruder (11) and in the storage bin (21); a shift block (42) is provided on the moving platform (16); and the travel switch (41) is located within the moving track of the shift block (42).

9. The plastic extrusion pulling strip automation device according to claim 8, characterized in that: The guide rail (15) is also provided with a toggle switch (43) at the junction of the cooling pool (12) and the air cooling section (13); the toggle switch (43) is located within the moving track of the toggle block (42); a prompt speaker (44) is provided on the mobile platform (16); and a controller is also provided; the toggle switch (43), the travel switch (41), and the prompt speaker (44) are all electrically connected to the controller.

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