Engineering plastic plate calendaring forming device

Abstract

The utility model relates to the technical field of plastic plate production, in particular to an engineering plastic plate calendaring forming device. The engineering plastic plate calendaring forming device comprises a calendaring machine body, a clamping roller, a winding drum, a reciprocating assembly, a disc and a baffle, a conveying roller used for conveying a calendaring plastic plate is installed on one side of the calendaring machine body, and an edge cutter is installed at the end, close to the conveying roller, of the calendaring machine body; and clamping rollers for clamping cut wastes are symmetrically arranged at one end of the calender body below the conveying rollers. According to the engineering plastic plate calendaring forming device provided by the utility model, through the design of the winding drum and the reciprocating assembly, efficient waste collection is realized; the waste can be evenly wound on the winding drum, the winding efficiency is greatly improved, the winding drum can be perfectly matched with the high-speed production rhythm of the calender, waste accumulation is effectively avoided, smooth proceeding of the production process is guaranteed, and the overall production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic sheet production technology, and in particular to an engineering plastic sheet calendering and molding device. Background Technology

[0002] Engineering plastic sheets refer to a type of plastic sheet with excellent properties such as high mechanical strength, heat resistance, chemical corrosion resistance, and dimensional stability. They are typically made from special high-molecular polymers through specific formulation design and processing techniques. Common raw materials include polycarbonate (PC), polyamide (PA, i.e., nylon), polyoxymethylene (POM), and polyphenylene sulfide (PPS). These high-performance materials enable engineering plastic sheets to be widely used in numerous fields. Calendering is a common and important processing technique in the production of engineering plastic sheets. After calendering, the plastic sheets need to be trimmed to meet product specifications, generating a large amount of waste material in the process.

[0003] Traditional engineering plastic sheet calendering equipment mostly uses fixed winding drums to collect these waste materials. This method has several drawbacks. From the perspective of collection efficiency, the collection efficiency of fixed winding drums is limited and cannot match the high-speed production rhythm of the calender, leading to waste accumulation and affecting the continuity of production. Moreover, since the width of the waste material is often uneven during the cutting process of plastic sheets, the waste material is prone to tilting when using fixed winding drums for winding. Once the waste material is wound at an angle, the collected waste material will be in a loose state and cannot be tightly wound on the winding drum. In order to ensure the quality of waste material collection, frequent manual intervention is often required to adjust and organize the winding process, which undoubtedly greatly increases the workload of workers, increases production costs, and reduces overall production efficiency.

[0004] Therefore, it is necessary to provide a new calendering apparatus for engineering plastic sheets to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an engineering plastic sheet calendering and forming device.

[0006] The engineering plastic sheet calendering device provided by this utility model includes: a calender body, a clamping roller, a winding drum, a reciprocating assembly, a disc, and a baffle. A conveying roller for conveying the calendered plastic sheet is installed on one side of the calender body. A trimming knife is installed at one end of the calender body near the conveying roller. A clamping roller for clamping the cut-off waste material is symmetrically arranged at one end of the calender body below the conveying roller. A winding drum for collecting the cut-off waste material is symmetrically arranged below the middle of the conveying roller. A reciprocating assembly is installed on one side of the winding drum. The reciprocating assembly drives the winding drum to rotate and causes the waste material to move back and forth and wrap around the winding drum. A disc for removing the waste material after winding is slidably connected to the ends of the winding drums that are close to each other. A baffle for limiting the waste material during winding is provided at the ends of the winding drums that are far apart from each other.

[0007] Preferably, the reciprocating assembly includes: a motor, a reciprocating lead screw, a mating block, and a guide frame. A bracket is installed at the bottom of the conveying roller. The motor is fixedly connected to one side of the bracket. The reciprocating lead screw is symmetrically rotatably connected inside the bracket. The opposite ends of the reciprocating lead screws are fixedly connected by a connecting rod. The output end of the motor is fixedly connected to the end of one of the reciprocating lead screws. A mating block is installed in the middle of each reciprocating lead screw. A guide frame is fixedly connected to the top of each mating block. A limit rod is fixedly connected inside the bracket below the reciprocating lead screw. Limit holes are opened at the bottom of each mating block. The limit rod passes through the limit hole and is slidably connected to the inner wall of the limit hole.

[0008] Preferably, a crossbar is rotatably connected to the top of the support on one side of the reciprocating screw, a drive pulley is fixedly connected to the middle of the connecting rod, a driven pulley is fixedly connected to the middle of the crossbar, the drive pulley and the driven pulley are connected by belt drive, and both ends of the crossbar are slidably connected to the corresponding winding drum.

[0009] Preferably, both ends of the crossbar are provided with placement grooves, the baffle is slidably connected to the inner wall of the corresponding placement groove, the inside of the placement groove is symmetrically provided with spring grooves, the inner wall of the spring groove is fixedly connected with a spring, the other end of the spring is fixedly connected with a locking block, the locking block is slidably connected to the inner wall of the corresponding spring groove, and the middle of both sides of the baffle is provided with locking grooves, which are engaged with the corresponding locking blocks.

[0010] Preferably, the bracket has a bidirectional threaded rod rotatably connected inside the crossbar below it. A slider is symmetrically threaded in the middle of the bidirectional threaded rod. A push block is fixedly connected to the top of each slider. The push block is sleeved on the outer wall of the crossbar and slidably connected to the crossbar. The side of the push block facing each other is rotatably connected to the end face of the corresponding winding drum.

[0011] Preferably, a worm gear is fixedly connected to the middle of the bidirectional threaded rod, a second motor is fixedly connected to the bottom of the bracket, and a worm is fixedly connected to the output end of the second motor, with the worm meshing with the worm gear.

[0012] Preferably, a drive gear is fixedly connected to one of the shaft centers of the conveying roller near the clamping roller, and a driven gear is fixedly connected to one of the shaft centers of the clamping roller located above, with the drive gear and the driven gear meshing together.

[0013] Preferably, the rotation speed of the crossbar is the same as the conveying speed of the conveyor roller.

[0014] Compared with related technologies, the engineering plastic sheet calendering apparatus provided by this utility model has the following beneficial effects:

[0015] The design of the take-up drum and reciprocating components enables efficient waste collection, allowing waste to be evenly wound on the take-up drum, greatly improving the take-up efficiency. This design perfectly matches the high-speed production rhythm of the calender, effectively preventing waste accumulation, ensuring smooth production processes, and significantly improving overall production efficiency.

[0016] Automated waste collection and sorting reduces manual intervention, lowers labor intensity, and saves human resource costs. At the same time, reduced manual intervention also reduces potential risks caused by human error, further ensuring the stability and reliability of production.

[0017] After waste collection is completed, this device is designed with a convenient waste disassembly and resetting structure. Through the cooperation of springs and locking blocks, the baffle can be easily disassembled and installed. After the limit on the winding drum is released, the motor drives the worm gear and the double-threaded rod, so that the slider drives the push block to push the winding drum to slide along the crossbar, making it convenient for the operator to pull the disc to remove the waste. After removing the waste, the winding drum can be reset by reversing the operation. The whole process is simple and quick, which greatly shortens the waste processing time and further improves the overall production efficiency.

[0018] The design that the crossbar rotation speed is the same as the conveying roller speed ensures that the waste material winding speed is precisely matched with the plastic sheet production speed. This precise speed matching not only ensures that the waste material can be collected in a timely and effective manner, but also further optimizes the overall operating performance of the device, avoiding problems such as waste material accumulation or untimely winding caused by speed mismatch, making the device more coordinated and efficient in all aspects. Attached Figure Description

[0019] Figure 1 A schematic diagram of the engineering plastic sheet calendering and forming apparatus provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows the structure of the conveyor roller;

[0021] Figure 3 for Figure 2 The diagram shows the structure at point A.

[0022] Figure 4 for Figure 2 The diagram shows the structure of the winding drum;

[0023] Figure 5 for Figure 4 The diagram shows the structure at point B.

[0024] The following are the labels in the diagram: 1. Calender body; 2. Conveyor roller; 3. Clamping roller; 4. Rewinding drum; 5. Disc; 6. Baffle; 7. Motor 1; 8. Reciprocating lead screw; 9. Mating block; 10. Guide frame; 11. Bracket; 12. Limiting rod; 13. Crossbar; 14. Driving pulley; 15. Driven pulley; 16. Spring; 17. Clamping block; 18. Bidirectional threaded rod; 19. Slider; 20. Push block; 21. Worm gear; 22. Motor 2; 23. Worm; 24. Driving gear; 25. Driven gear. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 5An engineering plastic sheet calendering apparatus includes: a calender body 1, clamping rollers 3, a take-up drum 4, a reciprocating assembly, a disc 5, and a baffle 6. A conveyor roller 2 for conveying the calendered plastic sheet is installed on one side of the calender body 1. A trimming knife is installed at one end of the calender body 1 near the conveyor roller 2. Clamping rollers 3 for clamping the trimmed waste are symmetrically arranged below the conveyor roller 2 at one end of the calender body 1. A take-up drum 4 for collecting the trimmed waste is symmetrically arranged below the middle of the conveyor roller 2. A reciprocating assembly is installed on one side of the take-up drum 4, which drives the take-up drum 4 to rotate and collect the waste. The reciprocating assembly is wound around a take-up drum 4. At the ends of the take-up drums 4 that are close to each other, a disc 5 for removing waste material after winding is slidably connected. At the ends of the take-up drums 4 that are far apart from each other, a baffle 6 is provided for limiting the waste material during winding. The reciprocating assembly includes: a motor 7, a reciprocating lead screw 8, a mating block 9, and a guide frame 10. A bracket 11 is installed at the bottom of the conveyor roller 2. The motor 7 is fixedly connected to one side of the bracket 11. The reciprocating lead screw 8 is symmetrically rotatably connected inside the bracket 11. The opposite ends of the reciprocating lead screw 8 are fixedly connected by a connecting rod. The output end of the motor 7 is fixedly connected to the end of one of the reciprocating lead screws 8. A mating disc 5 is installed in the middle of each reciprocating lead screw 8. Each mating block 9 has a guide frame 10 fixedly connected to its top. A limit rod 12 is fixedly connected inside the bracket 11 below the reciprocating screw 8. Limit holes are formed at the bottom of each mating block 9, through which the limit rod 12 passes and is slidably connected to the inner wall of the limit hole. A crossbar 13 is rotatably connected to the top of the bracket 11 on one side of the reciprocating screw 8. A drive pulley 14 is fixedly connected to the middle of the crossbar 13, and a driven pulley 15 is fixedly connected to the middle of the crossbar 13. The drive pulley 14 and the driven pulley 15 are connected via belt drive. Both ends of the crossbar 13 are slidably connected to the corresponding take-up drum 4, and both ends of the crossbar 13 have placement grooves. The baffle 6 is slidably connected to the inner wall of the corresponding placement groove. The placement groove is symmetrically provided with spring grooves. The inner wall of the spring groove is fixedly connected with a spring 16. The other end of the spring 16 is fixedly connected with a locking block 17. The locking block 17 is slidably connected to the inner wall of the corresponding spring groove. The middle of both sides of the baffle 6 is provided with a locking groove, which is engaged with the corresponding locking block 17. The conveying roller 2 has a driving gear 24 fixedly connected to one of its shafts near the clamping roller 3. The clamping roller 3 has a driven gear 25 fixedly connected to one of its upper shafts. The driving gear 24 and the driven gear 25 are meshed. The rotation speed of the crossbar 13 is the same as the conveying speed of the conveying roller 2.

[0028] It should be noted that when the waste material is wound onto the take-up drum 4, a certain distance needs to be reserved between the clamping roller 3 and the guide frame 10. This reserved distance is so that the guide frame 10 can drive the waste material to move back and forth, thereby achieving uniform winding of the waste material on the take-up drum 4 without affecting the normal movement of the plastic sheet on the conveyor roller 2. The rotation speed of the crossbar 13 is the same as the conveying speed of the conveyor roller 2, so that the waste material winding speed is precisely matched with the plastic sheet production speed, ensuring that the waste material can be collected in a timely and effective manner.

[0029] Please see Figure 4 and Figure 5 Inside the bracket 11, below the crossbar 13, there is a rotatably connected bidirectional threaded rod 18. The middle of the bidirectional threaded rod 18 is symmetrically threaded with sliders 19. The top of each slider 19 is fixedly connected with a push block 20. The push block 20 is sleeved on the outer wall of the crossbar 13 and is slidably connected to the crossbar 13. The opposite side of the push block 20 is rotatably connected to the end face of the corresponding winding drum 4. The middle of the bidirectional threaded rod 18 is fixedly connected with a worm gear 21. The bottom of the bracket 11 is fixedly connected with a second motor 22. The output end of the second motor 22 is fixedly connected with a worm 23. The worm 23 is meshed with the worm gear 21.

[0030] It should be noted that the push block 20, which is fixedly connected to the top of the slider 19, is sleeved on the outer wall of the crossbar 13 and slidably connected to it. When the push block 20 is close to the side wall of the take-up drum 4, it is rotatably connected, so that the motor 7 can rotate when collecting waste material and can move with the slider 19 when removing waste material.

[0031] The outer walls of both ends of the crossbar 13 are provided with protrusions, and the inner wall of the take-up drum 4 is provided with grooves that match the protrusions, so that the crossbar 13 can drive the take-up drum 4 to rotate when it rotates.

[0032] The working principle of the engineering plastic sheet calendering and forming device provided by this utility model is as follows:

[0033] Before using the plastic sheet calendering device for this project, the initial installation and preparation of the equipment must be carried out. The baffle 6 is installed in the placement slots at both ends of the crossbar 13. At this time, the locking block 17 inside the spring slot will engage with the locking slots on both sides of the baffle 6 due to the elastic force of the spring 16, thereby fixing the baffle 6 and providing a limiting function for subsequent waste material winding.

[0034] After the preparation work is completed, the calender body 1 is started. The calender body 1 applies pressure and temperature to the raw material through the internal rollers, causing it to be stretched and squeezed between the rollers, gradually forming a plastic sheet with a certain thickness and width. During this process, the temperature, pressure and roller speed of the raw material inside the calender body 1 are precisely controlled to ensure that the engineering plastic sheet achieves the required mechanical properties, heat resistance, chemical corrosion resistance and dimensional stability.

[0035] After being calendered, the plastic sheet is conveyed by the conveyor roller 2. At this time, the cutting shears installed at one end of the calender body 1 begin to function. According to the pre-set product specifications, the cutting shears trim the excess parts on both sides of the plastic sheet, making the sides neat and conforming to the production standards. During the cutting process, the operator passes the cut waste material through the corresponding clamping rollers 3. The clamping rollers 3 are used to initially fix and guide the waste material, ensuring that it can smoothly enter the subsequent collection process. Then, the waste material passes through the guide frame 10, which provides a guiding path for the movement of the waste material. Finally, the waste material is wound onto the take-up drum 4. When winding the waste material onto the take-up drum 4, a certain distance needs to be reserved between the clamping rollers 3 and the guide frame 10. This reserved distance is so that the guide frame 10 can drive the waste material to move back and forth, thereby achieving uniform winding of the waste material on the take-up drum 4.

[0036] After the initial winding of the waste material is completed, motor 7 is started to formally begin the winding operation of the waste material; as the conveyor roller 2 continues to run, the drive gear 24, which is fixedly connected to one end of the conveyor roller 2 near the clamping roller 3, and the driven gear 25, which is fixedly connected to one end of the clamping roller 3 above, begin to mesh; the drive gear 24 drives the driven gear 25 to rotate, so that the waste material can pass through smoothly under the action of the clamping roller 3, avoiding problems such as waste material deviation and jamming during the transmission process, and ensuring the stability and continuity of waste material transmission;

[0037] After the motor 7 starts, its output end drives one of the reciprocating lead screws 8 to rotate. Since the two reciprocating lead screws 8 are fixedly connected at their close ends by a connecting rod, the other reciprocating lead screw 8 will also rotate synchronously. During the rotation of the reciprocating lead screw 8, the mating block 9 installed in its middle can only reciprocate along the axial direction of the reciprocating lead screw 8 because the limiting hole at its bottom is slidably connected to the limiting rod 12 fixed inside the bracket 11. When the mating block 9 reciprocates, it will drive the guide frame 10 fixed on its top to move together, thereby driving the waste material to reciprocate in the horizontal direction.

[0038] Meanwhile, the two reciprocating screws 8 are fixedly connected at their close ends by a connecting rod, and a drive pulley 14 is fixed in the middle of the connecting rod. A driven pulley 15 is fixed in the middle of the crossbar 13, which is rotatably connected to the inside of the bracket 11, and is connected by a belt drive. When the reciprocating screws 8 rotate, the drive pulley 14 rotates accordingly, and drives the driven pulley 15 to rotate through the belt, which in turn causes the crossbar 13 to start rotating. The rotation of the crossbar 13 will drive the winding drum 4, which is slidably connected at both ends, to rotate. The rotation of the winding drum 4 will wind up the waste material. In this process, the reciprocating movement of the guide frame 10 allows the waste material to be evenly wound on the winding drum 4. Compared with the traditional collection method of fixing the winding drum 4, this design greatly improves the winding efficiency, effectively avoids the situation of tilting and loosening due to uneven width of waste material during the collection process, reduces the workload of frequent manual intervention for adjustment and sorting, and improves the overall production efficiency.

[0039] After the waste collection is completed, the collected waste needs to be removed from the take-up drum 4. At this time, first pull the baffle 6 out of the placement slots opened at both ends of the crossbar 13. During the pulling process, the slots on both sides of the baffle 6 will squeeze the locking block 17, causing the locking block 17 to move in the spring slot and compress the spring 16 until the baffle 6 is completely pulled out, releasing the limitation on the take-up drum 4. Then start the motor 22. The worm 23 fixedly connected to the output end of the motor 22 starts to rotate. The worm 23 meshes with the worm wheel 21, driving the worm wheel 21 to rotate. The double-threaded rod 18 fixed at the axis of the worm wheel 21 rotates accordingly. Since the double-threaded rod 18 is symmetrically threaded with sliders 19 in the middle, when the double-threaded rod 18 rotates, the sliders 19 will move towards both ends along the double-threaded rod 18 under the action of the threads. The push block 20 fixedly connected to the top of the slider 19 will move with the movement of the slider 19, and begin to push the take-up drum 4 to slide towards both ends along the axis of the crossbar 13. When When slider 19 moves to both ends of the bidirectional threaded rod 18, motor 22 stops running. At this time, the take-up drum 4 has been pushed to the appropriate position. The operator pulls the disc 5 to the other end of the take-up drum 4. Using the sliding connection between the disc 5 and the take-up drum 4, the collected waste material is removed from the take-up drum 4 for unified processing. After removing the waste material, the disc 5 is pushed back to its original position, and motor 22 is started again. At this time, slider 19 moves in the opposite direction, and the take-up drum 4 is driven to move in the opposite direction to reset through push block 20. Finally, baffle 6 is inserted into the placement slots at both ends of crossbar 13. During the insertion process, when baffle 6 contacts the locking block 17, it will squeeze it, causing it to move in the spring groove and compress spring 16. When baffle 6 moves to the middle of the locking groove and corresponds to locking block 17, spring 16 releases its elastic force to push locking block 17 into the locking groove, fixing baffle 6 and preparing for the next waste collection. The entire device enters a new cycle of waste collection.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An engineering plastic sheet calendering apparatus, characterized in that, include: Calender body (1), a conveying roller (2) for conveying calendered plastic sheet is installed on one side of the calender body (1), and an edge trimmer is installed at the end of the calender body (1) near the conveying roller (2). Clamping roller (3): One end of the calender body (1) is symmetrically provided with clamping roller (3) for clamping the cut-off waste material located below the conveyor roller (2). The winding drum (4) is symmetrically arranged below the middle part of the conveyor roller (2) for collecting the cut-off waste material. A reciprocating assembly is installed on one side of the winding drum (4). The reciprocating assembly drives the winding drum (4) to rotate and causes the waste material to move back and forth and wrap around the winding drum (4). The disc (5) and the winding drum (4) are slidably connected at their respective ends for removing waste material after winding. The baffle (6) and the winding drum (4) are both provided with a baffle (6) at their far ends for limiting the winding of waste material.

2. The engineering plastic sheet calendering apparatus according to claim 1, characterized in that, The reciprocating assembly includes: a motor (7), a reciprocating lead screw (8), a mating block (9), and a guide frame (10). A bracket (11) is installed at the bottom of the conveyor roller (2). A motor (7) is fixedly connected to one side of the bracket (11). A reciprocating lead screw (8) is symmetrically rotated inside the bracket (11). The opposite ends of the reciprocating lead screw (8) are fixedly connected by a connecting rod. The output end of the motor (7) is fixedly connected to the end of one of the reciprocating lead screws (8). A mating block (9) is installed in the middle of each reciprocating lead screw (8). A guide frame (10) is fixedly connected to the top of each mating block (9). A limit rod (12) is fixedly connected inside the bracket (11) below the reciprocating lead screw (8). A limit hole is opened at the bottom of each mating block (9). The limit rod (12) passes through the limit hole and slides with the inner wall of the limit hole.

3. The engineering plastic sheet calendering apparatus according to claim 2, characterized in that, The top of the bracket (11) is rotatably connected to a crossbar (13) on one side of the reciprocating screw (8). The middle of the connecting rod is fixedly connected to a drive pulley (14), and the middle of the crossbar (13) is fixedly connected to a driven pulley (15). The drive pulley (14) and the driven pulley (15) are connected by belt drive. Both ends of the crossbar (13) are slidably connected to the corresponding winding drum (4).

4. The engineering plastic sheet calendering apparatus according to claim 3, characterized in that, Both ends of the crossbar (13) are provided with placement slots. The baffle (6) is slidably connected to the inner wall of the corresponding placement slot. The placement slots are symmetrically provided with spring slots. The inner wall of the spring slots is fixedly connected with springs (16). The other end of the springs (16) is fixedly connected with a locking block (17). The locking block (17) is slidably connected to the inner wall of the corresponding spring slot. The middle of both sides of the baffle (6) is provided with locking slots and is engaged with the corresponding locking blocks (17).

5. The engineering plastic sheet calendering apparatus according to claim 4, characterized in that, Inside the bracket (11), a bidirectional threaded rod (18) is rotatably connected below the crossbar (13). A slider (19) is symmetrically threaded in the middle of the bidirectional threaded rod (18). A push block (20) is fixedly connected to the top of each slider (19). The push block (20) is sleeved on the outer wall of the crossbar (13) and slidably connected to the crossbar (13). The side of the push block (20) facing each other is rotatably connected to the end face of the corresponding winding drum (4).

6. The engineering plastic sheet calendering apparatus according to claim 5, characterized in that, A worm gear (21) is fixedly connected to the middle of the bidirectional threaded rod (18), and a second motor (22) is fixedly connected to the bottom of the bracket (11). A worm (23) is fixedly connected to the output end of the second motor (22), and the worm (23) meshes with the worm gear (21).

7. The engineering plastic sheet calendering apparatus according to claim 1, characterized in that, The conveyor roller (2) has a drive gear (24) fixedly connected at one of its shafts near the clamping roller (3), and the clamping roller (3) has a driven gear (25) fixedly connected at one of its upper shafts. The drive gear (24) and the driven gear (25) are meshed together.

8. The engineering plastic sheet calendering apparatus according to claim 3, characterized in that, The rotational speed of the crossbar (13) is the same as the conveying speed of the conveyor roller (2).

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