Plastic pellet mill drawbar device

Abstract

The utility model relates to the technical field of plastic processing equipment, especially relates to a plastic granulator pull strip equipment, the utility model discloses an extruder, a water tank, horizontal guide rail, fixed plate, clamping mechanism, the water tank is set up in one side of extruder, horizontal guide rail is arranged in both sides along the mouth of water tank, horizontal guide rail and fixed plate bottom surface both ends slide connection, and the setting position of fixed plate is adjacent to the discharge gate of extruder, and clamping mechanism sets up on fixed plate, and clamping cylinder sets up on fixed plate, and the output end of clamping cylinder is connected with drive link, and the rod body of drive link is equipped with the meshing tooth for driving, first transmission wheel and second transmission wheel are installed on fixed shell through the first pivot rod and second pivot rod respectively and are equipped with central shaft, second transmission wheel and first transmission wheel engage, and first pivot rod and second pivot rod end all are equipped with clamping piece, and the top end of clamping piece is sleeved in corresponding pivot rod end, for clamping plastic rubber strip.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing equipment technology, and in particular to a plastic granulator strip-drawing device. Background Technology

[0002] A plastic granulator is a mechanical device used to process plastic raw materials or waste plastics into uniform granules. Its working principle typically includes steps such as melting, extrusion, cooling, and cutting: First, the plastic raw material (such as recycled fragments or virgin material) is melted into a fluid state by heating. Then, it is pushed through a screw extruder to the die orifice to form strips or ribbons. Next, it is rapidly solidified by water or air cooling, and finally cut into uniform granules by rotating blades. These granules are characterized by uniform density, ease of storage and transportation, and can be directly used in subsequent plastic product manufacturing processes such as injection molding, blow molding, and extrusion. This equipment is widely used in the plastic recycling industry and chemical production fields, improving raw material utilization, reducing production costs, promoting resource recycling, and reducing environmental pollution.

[0003] However, existing equipment often encounters the following problems during use:

[0004] In the traditional granulator process, operators need to use scissors or wooden sticks or other tools to wrap and knot the extruded hot plastic strips during the strip pulling process, and then pull the strips in the water tank until they reach the next process. During this process, it is inevitable to come into contact with the hot plastic strips, which not only poses a risk of burns, but also requires careful passing under each tensioning wheel during the pulling process, as the strips are very easy to break. Utility Model Content

[0005] The main objective of this invention is to provide a strip-pulling device for a plastic granulator, effectively solving the problem mentioned in the background art where existing traditional granulators require operators to use scissors or wooden sticks to wrap and knot the extruded hot plastic strip during the strip-pulling process, and then pull the strip in a water tank to the next process. This process inevitably involves contact with the hot plastic strip, posing a risk of burns, and also requires careful handling under tension rollers during pulling, making it prone to breakage. This invention utilizes a clamping cylinder to drive a drive rod to rotate the first transmission wheel, which in turn rotates the second transmission wheel in the opposite direction, creating a clamping force that holds the hot plastic strip. The operator only needs to push the fixed plate, allowing the strip to slide directly onto the water tank to the next process, eliminating direct contact with the strip and preventing burns.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A plastic pelletizing and strip-drawing device, comprising:

[0008] Extruder;

[0009] A water tank, which is mounted on one side of the extruder;

[0010] A transverse guide rail is provided along both sides of the water tank.

[0011] A fixed plate, wherein the transverse guide rail is slidably connected to both ends of the bottom surface of the fixed plate, and the fixed plate is positioned adjacent to the discharge port of the extruder;

[0012] A clamping mechanism is disposed on the fixed plate. The clamping mechanism includes a clamping cylinder, a drive rod, a first transmission wheel, a second transmission wheel, a first rotating shaft, a second rotating shaft, and clamping members. The clamping cylinder is disposed on the fixed plate, and its output end is connected to the drive rod. The drive rod has meshing teeth for driving. The first transmission wheel and the second transmission wheel are respectively mounted on the fixed shell through the first rotating shaft and the second rotating shaft, passing through the central shaft. The first transmission wheel meshes with the meshing teeth for driving, and the second transmission wheel meshes with the first transmission wheel. The clamping members are provided at the ends of the first rotating shaft and the second rotating shaft. The top end of the clamping member is sleeved on the corresponding end of the rotating shaft for clamping plastic strips.

[0013] Also includes:

[0014] A fixed housing, wherein the clamping mechanism is installed inside the fixed housing;

[0015] A substrate, which is mounted on one side of the rim of the water tank;

[0016] The tensioning mechanism is located on one side of the edge of the water tank. The tensioning mechanism includes a lifting cylinder, a support plate, a bottom rotating wheel, a transmission belt, a top rotating wheel, a lifting rod, a turning rod, and a tensioning roller. The lifting cylinder is mounted on one side of the base plate, and its output end is connected to the support plate. The bottom rotating wheel is installed on one side of the support plate, and the top rotating wheel is located above the bottom rotating wheel. The transmission belt is sleeved around the outer periphery of the bottom and top rotating wheels. One side of the transmission belt is connected to the lifting rod, and the top end of the lifting rod is connected to the turning rod. The tensioning roller is located at the end of the turning rod and is horizontally positioned.

[0017] A linkage gear, wherein the central shaft of the linkage gear is connected to the bottom rotating shaft wheel;

[0018] A drive frame, in which the linkage gear is placed, and a meshing tooth is provided on one side of the inner diameter of the drive frame, and the linkage gear meshes with the meshing tooth of the drive frame;

[0019] A sliding groove is formed on the base plate, and the central shaft of the linkage gear passes through the sliding groove and is connected to the bottom rotating shaft wheel;

[0020] A longitudinal slide rail is mounted on one side of the base plate and is slidably connected to the lifting rod.

[0021] The tensioning mechanism is located on one side of the substrate, and the drive frame and linkage gear are located on the other side of the substrate.

[0022] The groove is a long, narrow through hole located within the movement path of the transmission belt.

[0023] The turning rod has a vertically downward bending structure, and the bent end is connected to the tensioning roller shaft.

[0024] The transverse guide rail consists of two parallel slide rails, and the fixing plate is slidably connected to the guide rails via a slide block.

[0025] The tensioning mechanism is provided in multiple sets, and the multiple sets of tensioning mechanisms are arranged side by side on one side of the water tank.

[0026] Compared with existing technologies, the advantages of this invention are as follows: This invention uses a clamping cylinder to drive a drive rod to rotate the first transmission wheel, which in turn causes the second transmission wheel to rotate in the opposite direction, forming a clamping force that holds the hot plastic strip. The operator only needs to push the fixing plate, allowing the strip to slide directly onto the water tank to the next process, avoiding direct contact with the strip and preventing burns. Simultaneously, the adjustable tensioning mechanism provides space for the sliding stroke of the clamping mechanism carrying the plastic strip, ensuring work efficiency. Attached Figure Description

[0027] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0028] Figure 1 This is a schematic diagram of the overall shape of the present utility model.

[0029] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model.

[0030] Figure 3 This is a schematic diagram of the tensioning mechanism of this utility model.

[0031] Figure 4 This is a schematic diagram of the linkage gear of this utility model.

[0032] The diagram is labeled as follows: 1. Extruder; 2. Water tank; 3. Transverse guide rail; 4. Fixing plate; 5. Clamping mechanism; 51. Clamping cylinder; 52. Drive rod; 53. First transmission wheel; 54. Second transmission wheel; 55. First rotating shaft; 56. Second rotating shaft; 57. Clamping component; 6. Fixing shell; 7. Base plate; 8. Tensioning mechanism; 81. Lifting cylinder; 82. Bearing plate; 83. Bottom rotating shaft wheel; 84. Transmission belt; 85. Top rotating shaft wheel; 86. Lifting rod; 87. Turning rod; 88. Tensioning roller; 9. Linkage gear; 10. Drive frame; 11. Slide groove; 12. Longitudinal slide rail. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] like Figure 1-4 As shown, this utility model provides a plastic granulator strip-drawing device, which includes an extruder 1, a water tank 2, a transverse guide rail 3, a fixing plate 4, a clamping mechanism 5, a clamping cylinder 51, a drive rod 52, a first transmission wheel 53, a second transmission wheel 54, a first rotating shaft 55, a second rotating shaft 56, and a clamping member 57.

[0036] A water tank 2 is mounted on one side of the extruder 1. The water tank 2 is used to cool the extruded plastic strip, allowing it to solidify rapidly and ensuring that the strip does not lose its original shape due to gravity during cooling. The water tank 2 provides a stable cooling environment, preventing the plastic strip from overheating or deforming. Transverse guide rails 3 are arranged along both sides of the water tank 2. The transverse guide rails 3 consist of two parallel sliding rails. A fixing plate 4 is slidably connected to the guide rails via a sliding block. The transverse guide rails 3 are slidably connected to both ends of the bottom surface of the fixing plate 4. The fixing plate 4 is positioned near the discharge port of the extruder 1. The transverse guide rails 3 and the fixing plate 4 form a sliding frame, allowing the clamping mechanism 5 to slide along the edge of the water tank 2. This sliding design ensures smooth operation of the entire strip-drawing process, eliminating the need for direct manual contact with the high-temperature strip. The sliding of the fixing plate 4 makes the entire system more efficient, stable, and automated, reducing manual intervention.

[0037] In this utility model, the clamping mechanism 5 is mounted on the fixed plate 4. The clamping mechanism 5 includes a clamping cylinder 51, a drive rod 52, a first transmission wheel 53, a second transmission wheel 54, a first rotating shaft 55, a second rotating shaft 56, and a clamping member 57. The clamping cylinder 51 is mounted on the fixed plate 4, and its output end is connected to the drive rod 52. The drive rod 52 has drive teeth on its shaft. The first transmission wheel 53 and the second transmission wheel 54 are respectively mounted on the fixed shell 6 through the first rotating shaft 55 and the second rotating shaft 56 via a central shaft. The first transmission wheel 53 meshes with the drive teeth, and the second transmission wheel 54 meshes with the first transmission wheel 53. The ends of the first rotating shaft 55 and the second rotating shaft 56 are each provided with a clamping member 57. The top end of the clamping member 57 is sleeved on the corresponding end of the rotating shaft and is used to clamp the plastic strip. The clamping mechanism 5 is designed to grab and pull the plastic strip to prevent it from falling off or deforming during the cooling process. The clamping cylinder 51 drive system achieves clamping through rotating transmission wheels and a rotating shaft, ensuring that the plastic strip can be smoothly pulled to the next process. The combination of the clamping cylinder 51 and the drive system ensures that the plastic strip is not affected by external factors throughout the process, and its movement is flexible and adjustable.

[0038] In this utility model, such as Figure 2As shown, the clamping mechanism 5 is installed inside the fixed housing 6. The fixed housing 6, as the mounting carrier of the clamping mechanism 5, provides a stable support structure. It not only maintains the stability of the clamping mechanism 5 but also ensures that each component of the clamping mechanism 5 can operate accurately and withstand tensile forces. The base plate 7 is installed on one side of the edge of the water tank 2; the base plate 7 serves as the foundation platform for the entire device, supporting the water tank 2, the tensioning mechanism 8, and other various mechanical devices. The tensioning mechanism 8 is located on one side of the edge of the water tank 2 and on one side of the base plate 7. The drive frame 10 and the linkage gear 9 are located on the other side of the base plate 7. Multiple sets of tensioning mechanisms 8 are arranged side-by-side on one side of the water tank 2. The tensioning mechanism 8 ensures that the plastic pull strip does not loosen throughout the process, thus maintaining stable pull strip operation.

[0039] In this utility model, the tensioning mechanism 8 includes a lifting cylinder 81, a bearing plate 82, a bottom rotating shaft wheel 83, a transmission belt 84, a top rotating shaft wheel 85, a lifting rod 86, a turning rod 87, and a tensioning roller shaft 88. The lifting cylinder 81 is mounted on one side of the base plate 7, and the output end of the lifting cylinder 81 is connected to the bearing plate 82. The bottom rotating shaft wheel 83 is installed on one side of the bearing plate 82, and the top rotating shaft wheel 85 is located above the bottom rotating shaft wheel 83. The transmission belt 84 is sleeved on the outer periphery of the bottom rotating shaft wheel 83 and the top rotating shaft wheel 85. One side of the transmission belt 84 is connected to the lifting rod 86. The top end of the lifting rod 86 is connected to the turning rod 87. The end of the turning rod 87 is provided with a tensioning roller shaft 88. The turning rod 87 has a vertically downward bending structure, and the bent end is connected to the tensioning roller shaft 88. The tensioning roller shaft 88 is horizontally arranged.

[0040] In this utility model, such as Figure 3-4 As shown, the central shaft of the linkage gear 9 is connected to the bottom rotating shaft wheel 83. The function of the linkage gear 9 is to transmit power, enabling all components of the entire transmission system to work synchronously. It drives the belt system through meshing with the bottom rotating shaft wheel 83, and ultimately drives the lifting rod 86 and tension roller shaft 88 to move via transmission. The linkage gear 9 is placed inside the drive frame 10, and meshing teeth are provided on one side of the drive frame 10's inner diameter. The linkage gear 9 meshes with the meshing teeth of the drive frame 10. A slide groove 11 is formed on the base plate 7. The central shaft of the linkage gear 9 passes through the slide groove 11 and connects to the bottom rotating shaft wheel 83. The slide groove 11 is an elongated through hole located within the movement path of the transmission belt 84. The slide groove 11 provides a sliding path between the linkage gear 9 and the bottom rotating shaft wheel 83, ensuring smooth operation of the transmission system and preventing component jamming.

[0041] The longitudinal slide rail 12 is mounted on one side of the base plate 7 and is slidably connected to the lifting rod 86. The lifting cylinder 81 pneumatically controls the support plate 82 to move up and down, which in turn drives the transmission belt 84 and the tension roller shaft 88 to move up and down. By adjusting the height of the tension roller shaft 88 through the lifting cylinder 81, space can be made for the sliding stroke of the clamping mechanism 5 carrying the plastic strip.

[0042] It should be noted that, in the plastic granulator strip-pulling device designed in this utility model, when the plastic strip is extruded from the parallel discharge port of the granulator, the plastic strip falls into the water tank 2 to cool due to gravity. At this time, the clamping cylinder 51 is activated, and the output end of the clamping cylinder 51 retracts and pulls the drive rod 52. The drive rod 52 is pulled, and its drive teeth are driven together. The first transmission wheel 53, which meshes with the drive teeth, is also driven. The first transmission wheel 53 rotates on its axis, driving the second transmission wheel 5 on one side. 4. The shafts rotate in opposite directions, causing the first and second shafts 55 and 56, which are located on the shafts of the first and second transmission wheels 54, to rotate as well. Taking the first transmission wheel 53 rotating counterclockwise as an example, the second transmission wheel 54 will rotate clockwise when the first transmission wheel 53 rotates counterclockwise. The two shafts corresponding to these rotations will also be driven, ultimately causing the clamping parts 57 at the ends of the first and second shafts 55 and 56 to clamp each other, thus holding the plastic strip. At this point, the fixing plate 4 supporting the clamping mechanism 5 can be pushed to slide away from the discharge port along the edge of the water tank 2, thus proceeding to the next process. The entire process does not require direct contact between the human hand and the hot plastic strip.

[0043] During the sliding process, each time the tensioning mechanism 8 is passed, the lifting cylinder 81 in the tensioning mechanism 8 retracts, driving the bearing plate 82 connected to its output end. The bearing plate 82 moves downward, and the bottom rotating shaft wheel 83 installed on one side of the bearing plate 82 will drive the linkage gear 9 to move downward because its shaft is connected to the shaft of the linkage gear 9. The linkage gear 9 slides downward within the drive frame 10, and because there are meshing teeth on one side of the inner wall of the drive frame 10, the sliding of the linkage gear 9 will rotate due to the meshing teeth. The rotation of the linkage gear 9 will in turn drive the bottom rotating shaft wheel 83 to rotate, and the rotation of the bottom rotating shaft wheel 83 will drive the transmission belt 84 it is fitted with, thus transmitting power. When belt 84 rotates, top rotating wheel 85, which is also connected to the bottom rotating wheel 83 by the belt, will also rotate. Due to the rotation of the sliding linkage gear 9, the connection between the driven transmission belt 84 and the lifting rod 86 is on the downward side. As a result, the lifting rod 86 moves down, and the turning rod 87 at the top of the lifting rod 86 also moves down. Finally, the tension roller 88 at the end of the turning rod 87 moves down until it presses down on the rubber strip to ensure its toughness. Through the liftable tension roller 88, the sliding of the clamping mechanism 5 carrying the plastic strip becomes unobstructed, without the need for manual insertion of the rubber strip through the bottom surface of the tension roller 88.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic granulator strip-drawing device, characterized in that, include: Extruder (1); Water tank (2), the water tank (2) is mounted on one side of the extruder (1); A transverse guide rail (3) is provided on both sides of the water tank (2); The fixed plate (4) is slidably connected to the two ends of the bottom surface of the horizontal guide rail (3), and the fixed plate (4) is located near the discharge port of the extruder (1). A clamping mechanism (5) is disposed on the fixed plate (4). The clamping mechanism (5) includes a clamping cylinder (51), a drive rod (52), a first transmission wheel (53), a second transmission wheel (54), a first rotating shaft (55), a second rotating shaft (56), and a clamping member (57). The clamping cylinder (51) is disposed on the fixed plate (4). The output end of the clamping cylinder (51) is connected to the drive rod (52). The shaft of the drive rod (52) is provided with meshing teeth for driving. The first drive wheel (53) and the second drive wheel (54) are respectively mounted on the fixed shell (6) through the first rotating shaft (55) and the second rotating shaft (56) through the central shaft. The first drive wheel (53) meshes with the meshing teeth for driving, and the second drive wheel (54) meshes with the first drive wheel (53). The first rotating shaft (55) and the second rotating shaft (56) are each provided with the clamping member (57) at their ends. The top end of the clamping member (57) is sleeved on the corresponding rotating shaft end for clamping the plastic strip.

2. The plastic granulator strip-drawing equipment according to claim 1, characterized in that, Also includes: A fixed shell (6) is provided, and the clamping mechanism (5) is installed inside the fixed shell (6); A substrate (7) is mounted on one side of the opening of the water tank (2); Tensioning mechanism (8), which is located on one side of the edge of the water tank (2), includes a lifting cylinder (81), a bearing plate (82), a bottom rotating shaft wheel (83), a transmission belt (84), a top rotating shaft wheel (85), a lifting rod (86), a turning rod (87), and a tensioning roller (88). The lifting cylinder (81) is mounted on one side of the base plate (7), and the output end of the lifting cylinder (81) is connected to the bearing plate (82). The bottom rotating shaft wheel (83) is located on the bottom side of the base plate (7). The top rotating shaft (85) is installed on one side of the bearing plate (82), and the bottom rotating shaft (83) is located above the bottom rotating shaft (83). The transmission belt (84) is sleeved on the outer periphery of the bottom rotating shaft (83) and the top rotating shaft (85). One side of the transmission belt (84) is connected to the lifting rod (86). The top end of the lifting rod (86) is connected to the turning rod (87). The end of the turning rod (87) is provided with the tension roller shaft (88), and the tension roller shaft (88) is horizontally set. Linkage gear (9), the central shaft of which is connected to the bottom rotating shaft wheel (83); Drive frame (10), the linkage gear (9) is placed inside the drive frame (10), and a meshing tooth is provided on one side of the inner diameter of the drive frame (10), and the linkage gear (9) meshes with the meshing tooth of the drive frame (10); The slide (11) is formed on the base plate (7), and the central shaft of the linkage gear (9) passes through the slide (11) and is connected to the bottom rotating shaft wheel (83). A longitudinal slide rail (12) is mounted on one side of the base plate (7) and is slidably connected to the lifting rod (86).

3. The plastic granulator strip-drawing equipment according to claim 2, characterized in that, The tensioning mechanism (8) is located on one side of the substrate (7), and the drive frame (10) and the linkage gear (9) are located on the other side of the substrate (7).

4. The plastic granulator strip-drawing equipment according to claim 2, characterized in that, The groove (11) is a long strip-shaped through hole located within the movement path of the transmission belt (84).

5. The plastic granulator strip-drawing equipment according to claim 2, characterized in that, The turning rod (87) has a vertically downward bending structure, and the bent end is connected to the tension roller shaft (88).

6. The plastic granulator strip-drawing equipment according to claim 1, characterized in that, The transverse guide rail (3) consists of two parallel slide rails, and the fixing plate (4) is slidably connected to the guide rails through a slide block.

7. The plastic granulator strip-drawing equipment according to claim 2, characterized in that, The tensioning mechanism (8) is provided in multiple sets, and the multiple sets of tensioning mechanisms (8) are arranged side by side on one side of the water tank (2).

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