A plastic extruded strip guide puller

Abstract

This utility model discloses a plastic extrusion strip guide traction frame, including a frame body. Multiple sets of studs are connected to the frame body. Each pair of studs movably passes through the same set of plates. Multiple sets of rods are rotatably connected to the frame body and the two sets of plates. One end of each set of rods is connected to a disc. A roller is placed between each pair of discs. Multiple sets of grooves are formed in the frame body and the two sets of plates, and studs are placed within each of these grooves. This utility model uses a scraper that works in conjunction with the roller to remove residual debris and dirt from the roller. The scraper's arc-shaped design fits the roller surface, and during rotation, it closely adheres to continuously scrape away particles, preventing impurities from being pressed into the extrusion strip at the source, reducing surface contamination or indentation defects. The spacing and pressure can be adjusted by sliding the studs in the grooves, allowing for optimal fit based on roller wear and plastic characteristics, ensuring cleaning effectiveness and product appearance quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a plastic extrusion strip guide traction frame. Background Technology

[0002] The plastic extrusion strip traction frame is the critical equipment in a plastic extrusion molding production line. It connects the extruder, cooling system, and subsequent cutting or winding processes. By controlling the conveying speed, tension, and posture of the plastic strip through stable traction force, it directly affects the dimensional accuracy, surface quality, and production continuity of the product.

[0003] In plastic extrusion molding production lines, roller traction is the core component for achieving continuous and stable conveying of plastic strips. Through the coordinated clamping of the driving and driven rollers, the traction rollers provide a continuous and uniform traction force to the cooled and shaped plastic strips, ensuring that they smoothly enter subsequent processes such as cutting and winding at the set speed. However, during long-term operation, plastic particles may adhere to the surface of the rollers. If not removed in time, these particles will be pressed into the surface of the plastic strip under traction pressure, forming quality defects such as indentations, dents, and black spots. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a plastic extrusion strip guide traction frame.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A plastic extrusion strip guide traction frame includes a frame body, on which multiple sets of studs are connected. Each pair of studs is movably connected to the same set of plates. The frame body and the two sets of plates are rotatably connected to multiple sets of rods. One end of each set of rods is connected to a disc. A roller is placed between each pair of discs. Multiple sets of grooves are formed in the frame body and the two sets of plates. Studs are placed in each of the multiple sets of grooves. Nuts are threadedly connected to each set of studs. Nuts are respectively attached to corresponding frames or plates. Each pair of studs is connected to the same set of scrapers. Each set of scrapers is attached to a corresponding roller. One end of each set of scrapers is arc-shaped and fits into the roller.

[0006] Preferably, each of the multiple sets of studs is threaded with two sets of nuts, and each set of nuts is respectively attached to the corresponding plate.

[0007] Preferably, one end of some of the rods is connected to a set of synchronous pulleys and another end of some rods is connected to two sets of synchronous pulleys. The multiple sets of synchronous pulleys are connected to each other by synchronous belt transmission. Two sets of motors are installed at one end of the frame, and the two sets of motors are respectively connected to the corresponding rods.

[0008] Preferably, each of the multiple sets of discs is connected to a block at one end, and each of the multiple sets of rollers has a groove at one end and the other end, with each of the multiple sets of blocks being inserted into and engaged with the corresponding groove.

[0009] Preferably, all of the blocks are prismatic and fit into the groove.

[0010] Preferably, multiple sets of the rollers are symmetrically distributed above the frame.

[0011] Preferably, the material of the multiple sets of scrapers is polyurethane.

[0012] The beneficial effects of this utility model are as follows: 1. Through the cooperation between the scraper, roller, and nut two, the scraper and roller can effectively remove residual plastic debris or stains from the roller surface. One end of the scraper is arc-shaped and fits snugly against the roller surface, ensuring close contact during roller rotation and continuously scraping away adhering plastic particles. This prevents impurities from being pressed into the surface of subsequent plastic extrusion strips, reducing quality defects caused by surface contamination or indentations. The sliding adjustment function of the nut two within the groove allows for adjustment of the distance and contact pressure between the scraper and roller. Operators can adjust the scraper to the optimal contact state based on roller wear, plastic material characteristics, and other practical factors, ensuring stable and reliable cleaning results and further guaranteeing the surface flatness and appearance quality of the plastic extrusion strip. 2. Through the engagement of the stud, plate, and nut, during equipment maintenance, the clamping restriction on the plate can be released by loosening and removing the two sets of nuts on the stud. At this point, the plate can be easily moved out along the axial direction of the stud, thus freeing the scraper and roller, which were originally supported by the plate and frame, from constraint. This allows operators to easily remove the entire unit for maintenance. Whether cleaning or repairing wear on the scraper, or inspecting and maintaining the surface condition of the roller, disassembly can be achieved through this operation. Simultaneously, this structural design facilitates the adaptation of the equipment to the processing needs of plastic extrusion strips of different specifications. When it is necessary to replace the scraper with a corresponding size to ensure a proper arc fit with the new roller, or to replace rollers of different diameters and lengths to match product specifications, simply remove the original components using the above steps to fit the new scraper and roller. This detachable connection method eliminates complex disassembly and assembly processes, reduces the time cost of maintenance and replacement operations, and to a certain extent improves the maintenance efficiency and flexibility of specification adjustments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a plastic extrusion strip guide traction frame proposed in this utility model; Figure 2 for Figure 1A structural schematic diagram of the middle slide, plate, and stud. Figure 3 for Figure 1 Schematic diagram of the structure of the second nut, the second stud, and the scraper; Figure 4 for Figure 1 Schematic diagram of the middle roller; Figure 5 for Figure 2 A schematic diagram of the structure of the central rod, disk, and block.

[0014] In the diagram: 1. Frame; 2. Stud 1; 3. Plate; 4. Nut 1; 5. Rod; 6. Disc; 7. Roller; 8. Synchronous pulley; 9. Synchronous belt; 10. Motor; 11. Block; 12. Groove; 13. Slide; 14. Stud 2; 15. Nut 2; 16. Scraper. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example 1, Example 1, Refer to Figures 1 to 5A plastic extrusion strip guide traction frame includes a frame body 1. Multiple sets of studs 2 are connected to the frame body 1. Each pair of studs 2 movably passes through the same set of plates 3. Multiple sets of rods 5 are rotatably connected to the frame body 1 and the two sets of plates 3. The rods 5 drive the rotation of discs 6. One end of each set of rods 5 is connected to a disc 6, which drives the rotation of rollers 7. Rollers 7 are placed between each pair of discs 6. The rotation of rollers 7 tractions the plastic extrusion strip. Multiple sets of grooves 13 are provided on the frame body 1 and the two sets of plates 3. Studs 14 are placed within each groove 13. Nuts 15 are threaded onto each set of studs 14. Nuts 15 are respectively attached to corresponding frames 1 or plates 3. Nuts 15 restrict the movement of studs 14. Unscrewing nuts 15 allows studs 14 to slide within the grooves 13. The distance between the scraper 16 and the roller 7 is adjusted to adjust the contact pressure and tightness between the scraper 16 and the roller 7, ensuring that the scraper 16 always fits the surface of the roller 7 in the optimal state, and to a certain extent removes residual plastic debris or stains on the roller 7. Each pair of studs 14 is connected to the same set of scrapers 16. The scrapers 16 are used to scrape off plastic particles that may stick to the surface of the roller 7. Multiple sets of scrapers 16 are respectively attached to the corresponding rollers 7. One end of each set of scrapers 16 is arc-shaped and fits the roller 7, resulting in better scraping effect. When the roller 7 rotates and pulls the plastic extrusion strip to move, it will also come into contact with the scrapers 16. The scrapers 16 scrape off plastic particles that may stick to the surface of the roller 7, thereby avoiding the problem that plastic particles sticking to the surface of the roller 7 may be pressed into the product surface, and thus has a wide range of applications.

[0017] In this embodiment, each of the multiple sets of studs 2 is threaded with two sets of nuts 4. The nuts 4 are respectively fitted with corresponding plates 3. Unscrewing the nuts 4 removes the restriction on the plates 3, allowing them to be removed from the studs 2. At this point, the scraper 16 and roller 7 can be removed for maintenance, or replaced with scrapers 16 and roller 7 of other specifications, thus improving maintenance efficiency to a certain extent. Some rods 5 are connected to one end with a set of synchronous pulleys 8, and some rods 5 are connected to two sets of synchronous pulleys 8 at one end. The multiple sets of synchronous pulleys 8 are connected to each other via synchronous belts 9. Two sets of motors 10 are installed at one end of the frame 1. The model of the motors 10 can be selected according to actual conditions. The two sets of motors 10 are respectively connected to the corresponding rods 5. Starting the motors 10 drives some rods 5 to rotate together through the cooperation of the synchronous pulleys 8 and synchronous belts 9. The rods 5 drive the rollers 7 to rotate through the connected disc 6. Multiple sets of discs 6 are each connected to a block 11 at one end, and multiple sets of rollers 7 have grooves 12 at one and the other ends. The blocks 11 are inserted into their corresponding grooves 12, providing positioning for the rollers 7. The blocks 11 are all prismatic and fit into the grooves 12. This prismatic design allows the rollers 7 to rotate when the discs 6 rotate, through the interaction of the blocks 11 and grooves 12. The multiple sets of rollers 7 are symmetrically distributed above the frame 1, applying balanced force from both sides of the plastic extrusion strip. During traction, the plastic extrusion strip will not experience deviation, bending, or deformation due to uneven force. The multiple sets of scrapers 16 are made of polyurethane, with adjustable hardness, combining elasticity and rigidity, and can closely conform to the curvature of the roller 7 surface.

[0018] The working principle of this embodiment is as follows: During use, after the motor 10 starts, it drives the rod 5 to rotate. With the transmission of the synchronous belt 9, power is transmitted to other rods 5 via the synchronous pulley 8, enabling multiple sets of rods 5 to rotate synchronously. The disc 6 connected to one end of the rod 5 rotates together with the rod 5. Because the prismatic blocks 11 on the disc 6 are inserted into the grooves 12 at both ends of the roller 7, the rotational force of the disc 6 is transmitted to the roller 7 through the cooperation of the blocks 11 and the grooves 12, ultimately driving multiple sets of rollers 7 symmetrically distributed above the frame 1 to rotate synchronously, providing power for the traction of the plastic extruded strip. During synchronous rotation, the symmetrically distributed rollers 7, through their coordinated clamping of the plastic extruded strip, form a continuous and uniform traction force. After exiting the extruder and cooling system, the plastic extruded strip enters between two sets of symmetrically distributed rollers 7, and under the traction of the rollers 7, moves smoothly at a set speed, realizing the conveying to subsequent cutting or winding processes. Meanwhile, the symmetrically distributed structure ensures balanced force on the plastic extrusion strip, avoiding problems such as deviation, bending, or deformation during conveying, and thus guaranteeing product quality to a certain extent. During the rotation of the roller 7 to pull the plastic extrusion strip, the scraper 16 maintains continuous contact with the surface of the roller 7, effectively removing any plastic particles, debris, or stains that may adhere to the roller 7 surface. The scraper 16, made of polyurethane, possesses good elasticity and wear resistance, cleaning the roller 7 without damaging its surface, thus preventing impurities from being pressed into the plastic strip surface under traction pressure and causing quality defects. When maintenance or replacement of the scraper 16 or roller 7 is required, loosening the two sets of nuts 4 on the stud 2 releases the clamping restriction on the plate 3, allowing the plate 3 to be moved axially along the stud 2, facilitating the removal of the scraper 16 and roller 7. By replacing scrapers 16 of different sizes or rollers 7 of different diameters and lengths, the equipment can be adapted to the processing needs of plastic extrusion strips of different specifications, improving its versatility and flexibility to a certain extent. When reinstalling, simply put plate 3 back in its original position and tighten nut 4 to fix the component. The operation is simple and quick, which reduces the time cost of maintenance and adjustment to a certain extent and has wide applicability.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic extrusion strip guide traction frame, comprising a frame body (1), characterized in that, The frame (1) is connected to multiple sets of studs (2), and each pair of studs (2) is movably connected to the same set of plates (3). The frame (1) and the two sets of plates (3) are rotatably connected to multiple sets of rods (5), and one end of each set of rods (5) is connected to a disc (6). A roller (7) is placed between each pair of discs (6). The frame (1) and the two sets of plates (3) are provided with multiple sets of sliding grooves (13). Each groove (13) has a stud (14) placed in close contact with it. Each set of studs (14) is threadedly connected to a nut (15). Each set of nuts (15) is in close contact with the corresponding frame (1) or plate (3). Each pair of studs (14) is connected to the same set of scrapers (16). Each set of scrapers (16) is in close contact with the corresponding roller (7). One end of each set of scrapers (16) is arc-shaped and fits into the roller (7).

2. The plastic extrusion strip guide traction frame according to claim 1, characterized in that, Each of the multiple sets of studs (2) is threaded with two sets of nuts (4), and each set of nuts (4) is attached to the corresponding plate (3).

3. The plastic extrusion strip guide traction frame according to claim 1, characterized in that, One end of each of the rods (5) is connected to a set of synchronous pulleys (8), and one end of each of the rods (5) is connected to two sets of synchronous pulleys (8). The multiple sets of synchronous pulleys (8) are connected to each other by synchronous belts (9). One end of the frame (1) is equipped with two sets of motors (10), and the two sets of motors (10) are respectively connected to the corresponding rods (5).

4. The plastic extrusion strip guide traction frame according to claim 1, characterized in that, Each of the multiple sets of discs (6) is connected to a block (11) at one end, and each of the multiple sets of rollers (7) has a groove (12) at one end and the other end. The multiple sets of blocks (11) are respectively inserted into and cooperate with the corresponding groove (12).

5. A plastic extrusion strip guide traction frame according to claim 4, characterized in that, All of the blocks (11) are prismatic and fit into the groove (12).

6. A plastic extrusion strip guide traction frame according to claim 1, characterized in that, Multiple sets of rollers (7) are symmetrically distributed above the frame (1).

7. A plastic extrusion strip guide traction frame according to claim 1, characterized in that, The scraper (16) of the multiple sets is made of polyurethane.

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