Steel wire trimming device for rubber calender

Abstract

The utility model belongs to the technical field of machine manufacturing, and discloses a steel wire trimming device for a rubber calender. The supporting shaft, the bottom plate and the sliding blocks of the guide rails form a whole moving along the axes of the guide rails. The other end of the steel wire is wound on the steel wire recovery wheel; a bearing is mounted on the arched knife rest and supports the shaft; a ratchet wheel and a hand wheel are arranged at the other end of the shaft; the steel wire recovery wheel rotates along with the rotation of the shaft and the ratchet wheel; the other end of the check pin is provided with a spring; one end of the arched knife rest is mounted on the rotating shaft and rotates around the rotating shaft; a front hinged type air cylinder is installed at the other end of the support, the air cylinder stretches out and retracts back to push the arch-shaped tool rest to rotate around the rotating shaft, and the steel wire makes contact with or is away from the anvil roller. Steel wires are adopted as cutting tools for cutting rubber edges, pressure of the cutting tools on the anvil roller is reduced, and the service life of the anvil roller is prolonged. And moreover, the steel wire can be quickly replaced through the device disclosed by the utility model.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to a steel wire trimming device for a rubber calender. Background Technology

[0002] Rubber calenders are mainly used for calendering processes such as pressing rubber compounds into sheets, applying rubber to textiles or steel cord fabrics, bonding rubber sheets, pressing rubber blanks, and applying isolation sheets to tire cord layers; they are widely used in industries such as tires, conveyor belts, and hoses.

[0003] The edge trimming device of a rubber calender is installed at the discharge port of the calender main unit. It is used to trim the edges of the calendered fabric with irregular rubber fringes according to process requirements to meet the requirements for subsequent normal use. Traditional edge trimming devices use steel plate blades to trim the edges of the fabric. To extend the service life of the blades, the blade edges generally need to be hardened. However, hardened blade edges are prone to damaging the surface of the anvil roller in contact with the blade edge. In addition, replacing the blades requires professional workshop maintenance workers to use specialized tools, increasing the difficulty of blade replacement. Utility Model Content

[0004] This utility model patent relates to a steel wire edge-cutting device for a rubber calender. This device uses steel wire as the cutting tool for cutting the rubber edge, reducing the pressure of the cutting tool on the anvil roller and extending the service life of the anvil roller. Furthermore, through components such as ratchet and set screw, the contact position between the steel wire and the anvil roller is quickly updated, achieving the purpose of updating the cutting tool.

[0005] The technical solution of this utility model is as follows: A steel wire trimming device for a rubber calender, comprising a steel wire 1, a support shaft 2, a guide rail 3, a top wire 4, an arc-shaped knife holder 5, a cylinder 6, a bracket 7, a check pin 8, a spring 9, a ratchet 10, a handwheel 11, a shaft 12, a rotating shaft 13, a steel wire recovery wheel 14, and a bearing 15.

[0006] The support shaft 2 is welded to the base plate on which the support shaft 2 is mounted. The base plate is mounted on the slider of the guide rail 3. The support shaft 2, the base plate and the slider of the guide rail 3 form a whole that moves along the axis of the guide rail 3. One end of the steel wire 1 is wound on the support shaft 2, and the other end of the steel wire 1 is wound on the steel wire recovery wheel 14.

[0007] The head of the set screw 4 rests against one side of the slider on the guide rail 3 to limit the movement of the slider on the guide rail 3; a round hole is machined on the bow-shaped tool holder 5, and a bearing 15 is installed in the round hole, which supports the shaft 12; a wire recovery wheel 14 is installed at one end of the shaft 12, and a ratchet 10 and a handwheel 11 are installed at the other end; the wire recovery wheel 14 rotates with the shaft 12 and the ratchet 10.

[0008] The check pin 8 is mounted on the base plate on the side of the bow-shaped tool holder 5; one end of the check pin 8 engages with the external teeth of the ratchet 10 to prevent the ratchet 10 from reversing; a spring 9 is mounted on the other end of the check pin 8, and the spring 9 presses the other end of the check pin 8.

[0009] One end of the bow-shaped tool holder 5 is mounted on the rotating shaft 13, and the bow-shaped tool holder 5 rotates around the rotating shaft 13; the rotating shaft 13 is mounted on one end of the bracket 7, and the other end of the bracket 7 is equipped with a front-hinged cylinder. The cylinder extends and retracts to push the bow-shaped tool holder 5 to rotate around the rotating shaft 13, and the steel wire 1 contacts or moves away from the anvil roller.

[0010] The beneficial effects of this invention are: using steel wire as the cutting tool for cutting rubber edges reduces the pressure of the cutting tool on the anvil roller, thus extending the service life of the anvil roller. Furthermore, the device of this invention allows for quick replacement of the steel wire. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a steel wire trimming device for a rubber calender.

[0012] Figure 2 This is a top view of the wire trimming device in a rubber calender.

[0013] Figure 3 A detailed view of the pin and spring.

[0014] In the diagram: 1. Steel wire, 2. Support shaft, 3. Guide rail, 4. Top screw, 5. Bow-shaped tool holder, 6. Cylinder, 7. Bracket, 8. Check pin, 9. Spring, 10. Ratchet, 11. Handwheel, 12. Shaft, 13. Rotating shaft, 14. Steel wire recovery wheel, 15. Bearing. Detailed Implementation

[0015] A steel wire trimming device for a rubber calender includes a steel wire 1, a support shaft 2, a guide rail 3, a top wire 4, an arc-shaped knife holder 5, a cylinder 6, a bracket 7, a check pin 8, a spring 9, a ratchet 10, a handwheel 11, a shaft 12, a rotating shaft 13, a steel wire recovery wheel 14, and a bearing 15.

[0016] The support shaft 2 is welded to the base plate on which the support shaft 2 is mounted. The base plate is mounted on the slider of the guide rail 3. The support shaft 2, the base plate and the slider of the guide rail 3 form a whole that moves along the axis of the guide rail 3. One end of the steel wire 1 is wound on the support shaft 2, and the other end of the steel wire 1 is wound on the steel wire recovery wheel 14.

[0017] The head of the set screw 4 rests against one side of the slider on the guide rail 3 to limit the movement of the slider on the guide rail 3; a round hole is machined on the bow-shaped tool holder 5, and a bearing 15 is installed in the round hole. The bearing 15 supports the shaft 12. A wire recovery wheel 14 is installed at one end of the shaft 12, and a ratchet 10 and a handwheel 11 are installed at the other end; when the handwheel 11 is turned, the shaft 12, ratchet 10, and wire recovery wheel 14 rotate simultaneously; the rotation of the wire recovery wheel 14 causes the wire 1 wound on it to tighten quickly;

[0018] To prevent the ratchet 10 from loosening after tightening the wire 1, a check pin 8 is installed to prevent the ratchet 10 from reversing. Under the compression of the spring 9, one end of the check pin 8 engages with the external teeth of the ratchet, ensuring that the ratchet will not rotate and maintaining the tension of the wire. When it is necessary to change the position of the wire cutting edge, first turn the set screw 4 to move the slider of the guide rail 3 and the support shaft 2 mounted on the slider under the drive of the wire 1, thereby loosening the taut wire 1. Since the ratchet 10 needs to reverse to loosen the wire, manually press one end of the check pin 8 to rotate the check pin 8. The other end of the check pin 8 will disengage from the external teeth of the ratchet 10, and the ratchet 10 will be in a state of free rotation. Since the ratchet 10 and the wire recovery wheel 14 are both coaxially mounted on the shaft 12, the ratchet 10 is in a state of free rotation, and the wire recovery wheel 14 will also be in a state of free rotation, allowing the wire to loosen.

[0019] One end of the bow-shaped tool holder 5 is mounted on the rotating shaft 13, and the bow-shaped tool holder 5 can rotate around the rotating shaft 13; the rotating shaft 13 is mounted on one end of the bracket 7, and the other end of the bracket 7 is equipped with a front-hinged cylinder. The cylinder extends and retracts to push the bow-shaped tool holder 5 to rotate around the rotating shaft 13, and the steel wire 1 contacts or moves away from the anvil roller.

[0020] Turning the handwheel 11 simultaneously rotates the wire take-up wheel 14, causing the wire 1 wound on it to tighten quickly. Because there is a large distance between the teeth of the ratchet, the wire tension may sometimes be too loose, making it difficult to tighten further by turning the handwheel. Therefore, a set screw 4 is installed on one side of the slider of the guide rail 3 for fine-tuning to ensure the wire tension. This cutting device uses a handwheel and a wire take-up wheel to ensure rapid wire tightening or release, while the set screw 4 and guide rail 3 are designed to fine-tune the wire tension.

[0021] The new type of rubber calender's wire trimming device uses steel wire with a diameter of φ0.6mm to φ0.8mm as the cutting tool for cutting rubber sheets. During operation, the steel wire wraps around a portion of the anvil roller's surface to form a compression zone, thereby removing excess rubber flash. Because the contact area between the steel wire-wrapped anvil roller surface and the roller surface is larger compared to a straight blade, the pressure on the roller surface is relatively lower, thus extending the anvil roller's service life. Furthermore, the steel wire head of the trimming device is wound around the shaft of a ratchet mechanism, allowing the operator to easily loosen and tighten the wire on the blade holder, facilitating the replacement of the cutting edge of the trimming device.

[0022] This utility model patent relates to the structure of a steel wire cutting device for a rubber calender. This structure uses steel wire as a cutting blade, which can reduce the pressure of the cutting blade on the anvil roller surface, extend the service life of the anvil roller, and allow the operator to easily replace the cutting blade, reducing replacement time.

Claims

1. A wire trimming device for a rubber calender, characterized in that, The steel wire trimming device for the rubber calender includes a steel wire (1), a support shaft (2), a guide rail (3), a top wire (4), a bow-shaped knife holder (5), a cylinder (6), a bracket (7), a check pin (8), a spring (9), a ratchet (10), a handwheel (11), a shaft (12), a rotating shaft (13), a steel wire recovery wheel (14), and a bearing (15). The support shaft (2) is welded to the base plate on which the support shaft (2) is installed. The base plate is installed on the slider of the guide rail (3). The support shaft (2), the base plate and the slider of the guide rail (3) form a whole that moves along the axis of the guide rail (3). One end of the steel wire (1) is wound on the support shaft (2), and the other end of the steel wire (1) is wound on the steel wire recovery wheel (14). The head of the set screw (4) rests against one side of the slider on the guide rail (3) to limit the movement of the slider on the guide rail (3); a round hole is machined on the bow-shaped tool holder (5), and a bearing (15) is installed in the round hole, which supports the shaft (12); a wire recovery wheel (14) is installed at one end of the shaft (12), and a ratchet (10) and a handwheel (11) are installed at the other end; the wire recovery wheel (14) rotates with the shaft (12) and the ratchet (10); The check pin (8) is installed on the base plate on the side of the bow-shaped tool holder (5); one end of the check pin (8) meshes with the external teeth of the ratchet (10) to prevent the ratchet (10) from reversing; a spring (9) is installed on the other end of the check pin (8), and the spring (9) presses the other end of the check pin (8). One end of the bow-shaped tool holder (5) is mounted on the rotating shaft (13), and the bow-shaped tool holder (5) rotates around the rotating shaft (13); the rotating shaft (13) is mounted on one end of the bracket (7), and the other end of the bracket (7) is equipped with a front-hinged cylinder. The cylinder extends and retracts to push the bow-shaped tool holder (5) to rotate around the rotating shaft (13), and the steel wire (1) contacts or moves away from the anvil roller.

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