Cutting device for fireproof cable extrusion

Abstract

This utility model relates to the technical field of cable production equipment, specifically a cutting device for extruding fire-resistant cables. It includes a frame with a movable cutting assembly mounted on it. Support rollers are mounted on the frame at both ends of the cutting assembly. Slide rails are mounted on both sides of the frame corresponding to the cutting assembly, and sliders are mounted on the slide rails. The cutting assembly includes a base plate and a cutter. The two sides of the base plate are connected to the corresponding sliders. A bracket is mounted on the base plate, and two vertical telescopic rods are mounted on the bracket. The telescopic end of the first vertical telescopic rod points vertically downwards and is connected to the cutter. The telescopic end of the second vertical telescopic rod points vertically downwards and is connected to a pressure block. This utility model allows the cutter and cable to move synchronously. During cutting, the cutter and cable do not shift horizontally. The cable remains stable on the base plate during the cutting process, resulting in high cutting accuracy and improved cutting effect and efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of cable production equipment, specifically relating to a cutting device for extrusion molding of fireproof cables. Background Technology

[0002] Cables are wire products used to transmit electrical (magnetic) energy, information, and realize electromagnetic energy conversion. They are usually composed of several or groups of conductors. To be suitable for the environment, cables are wrapped with protective sheaths. For example, the protective sheath of fire-resistant cables has a fire-resistant function. The extrusion production line of fire-resistant cables generally includes a feeding device, an extrusion molding machine, a cooling device, and a winding machine. That is, the cable is extruded, cooled, and then wound up by the winding machine. During the winding process, after a single winding stand completes winding, when changing to a new winding stand, the cable needs to be cut. In the existing technology, to ensure the stability of the cable during cutting, the cable at the cut point must be clamped and fixed. Once the cable is fixed, it will not move. If the extrusion molding process is not interrupted, it will have an adverse effect on the extruded cable. If it is interrupted, it will affect the cable production efficiency and is not conducive to continuous production. Therefore, there is an urgent need for a cutting device for fire-resistant cable extrusion molding to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a cutting device for extrusion molding of fireproof cables, including a frame, a movable cutting component on the frame, support rollers on the frame at both ends of the cutting component, slide rails on both sides of the frame corresponding to the cutting component, and sliders on the slide rails.

[0004] The cutting assembly includes a base plate and a cutter. The upper surface of the base plate is flush with the highest point of the support roller. The two sides of the base plate are connected to corresponding sliders. A bracket is provided on the base plate. A vertical telescopic rod 1 and a vertical telescopic rod 2 are provided on the bracket 1. The telescopic end of the vertical telescopic rod 1 is vertically downward and connected to the cutter. The telescopic end of the vertical telescopic rod 2 is vertically downward and connected to a pressure block.

[0005] After the extruded fire-resistant cable cools, it passes through the frame and is wound up by the take-up rollers. The cable passes over the base plate. After one take-up roller finishes winding, the cutter descends and cuts the cable passing over the base plate. During the cable cutting process, the pressure block can be pressed down to fix the cable to the base plate. The base plate and the cable move synchronously, and the cable and the cutter on the base plate do not shift horizontally, improving the accuracy and quality of the cutting. After cutting, the base plate is moved back to the initial position. It should be noted that when the pressure block is not pressed down, the friction between the cable and the base plate is insufficient to move the base plate along the slide rail. When the pressure block is pressed down, the base plate is fixed to the cable, and the base plate moves along the slide rail under the traction of the take-up rollers.

[0006] Preferably, each of the two slide rails is equipped with a linear module, and the slider is fixed on the slide table of the corresponding linear module. The two linear modules operate synchronously. During the cutting operation, under the action of the linear module, the slide table drives the cutting component to move along the slide rail, so that the cutting component and the cable move at the same speed. The cutter does not move in the horizontal direction relative to the cable, improving the cutting accuracy and avoiding the cable movement affecting the cutting effect during cutting.

[0007] Preferably, the cutting assembly is equipped with a moving mechanism, which includes a horizontal screw, with connecting rods connected to both ends of the horizontal screw. The connecting rods are parallel to the support rollers, and both ends of the connecting rods are fixedly connected to the frame via bracket two. Both ends of the horizontal screw are rotatably connected to the corresponding connecting rods via bearings. One end of the horizontal screw passes through the corresponding connecting rod and is connected to a forward and reverse motor. A moving block is threaded onto the horizontal screw, and a guide rod is fixed between the two connecting rods. The moving block has a guide hole through which the guide rod passes. A bracket three is fixed on bracket one and is fixedly connected to the moving block.

[0008] It should be noted that by reversing the forward and reverse rotation of the motor, the moving block can drive the cutting component to move back and forth along the slide rail. Adjusting the speed of the forward and reverse rotation motor can make the cutting component and the cable move at the same speed, so that the cutter does not move in the horizontal direction relative to the cable, thereby improving the cutting accuracy and avoiding the cable moving during cutting and affecting the cutting effect.

[0009] Preferably, the first vertical telescopic rod is an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, and the second vertical telescopic rod is an electric push rod or a hydraulic cylinder.

[0010] Preferably, the lower surface of the pressure block is arc-shaped and has a fixed elastic anti-slip layer. When the pressure block is pressed down, it can increase the contact area between itself and the cable, thereby playing an anti-slip role and improving the stability during the cutting operation.

[0011] This utility model also includes other components that enable the cutting device for extruding fireproof cables to function properly, such as control components for forward and reverse motors, electric push rods, hydraulic cylinders, and linear modules, all of which are conventional technologies in the field. Furthermore, devices or components not specified in this utility model, such as linear modules, electric push rods, hydraulic cylinders, and cutters, all employ conventional technologies and equipment in the field.

[0012] Working principle: After the extruded fire-resistant cable cools, it passes through the frame and is wound up by the take-up roller. The cable passes over the base plate. After one take-up roller finishes winding, the cutter descends and cuts the cable passing over the base plate. During the cable cutting process, the pressure block can be pressed down to fix the cable to the base plate. The base plate and the cable move synchronously, and the cable on the base plate and the cutter remain relatively stationary, improving the accuracy and quality of the cutting. After cutting, the base plate moves back to the initial position, ready for the next cutting operation.

[0013] This utility model has the following advantages: the cutter and the cable can move synchronously. During cutting, the cutter and the cable do not shift in the horizontal direction. During the cutting process, the cable is stable and does not shift on the base plate. The cutting accuracy is high, which improves the cutting effect and cutting efficiency of the cable. Extrusion molding does not need to be paused, which can realize continuous and efficient production. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of a cutting device for extruding fireproof cables according to Embodiment 1 of this utility model;

[0016] Figure 2 for Figure 1 Top view;

[0017] Figure 3 for Figure 1 A diagram showing the state of the cable as it is being cut through the base plate;

[0018] Figure 4 This is a schematic diagram of the structure of a cutting device for extruding fireproof cables according to Embodiment 2 of this utility model;

[0019] Figure 5 for Figure 4 Top view;

[0020] Figure 6 This is a schematic diagram of the structure of a cutting device for extruding fireproof cables according to Embodiment 3 of this utility model;

[0021] Figure 7 This is a schematic diagram of the pressure block in an embodiment of the present invention.

[0022] In the diagram: 1. Frame; 2. Support roller; 3. Base plate; 4. Bracket 1; 5. Cutter; 6. Vertical telescopic rod 1; 7. Pressure block; 8. Slider; 9. Slide rail; 10. Vertical telescopic rod 2; 11. Cable; 12. Elastic anti-slip layer; 13. Bracket 3; 14. Moving block; 15. Horizontal screw; 16. Forward and reverse motor; 17. Connecting rod; 18. Bracket 2; 19. Guide rod; 20. Slide table; 21. Linear module. Detailed Implementation

[0023] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0024] Example 1

[0025] like Figure 1 , 2 As shown in Figures 3 and 7, this utility model provides a cutting device for extruding fireproof cables, including a frame 1, a movable cutting component on the frame 1, support rollers 2 on the frame 1 at both ends of the cutting component, slide rails 9 on both sides of the frame 1 corresponding to the cutting component, and sliders 8 on the slide rails 9.

[0026] The cutting assembly includes a base plate 3 and a cutter 5. The upper surface of the base plate 3 is flush with the highest point of the support roller 2. The two sides of the base plate 3 are connected to the corresponding sliders 8. A bracket 4 is provided on the base plate 3. A vertical telescopic rod 6 and a vertical telescopic rod 10 are provided on the bracket 4. The telescopic end of the vertical telescopic rod 6 is vertically downward and connected to the cutter 5. The telescopic end of the vertical telescopic rod 10 is vertically downward and connected to a pressure block 7.

[0027] The first vertical telescopic rod 6 is a hydraulic cylinder or a pneumatic cylinder, and the second vertical telescopic rod 10 is an electric push rod or a hydraulic cylinder.

[0028] The lower surface of the pressure block 7 is arc-shaped and has a fixed elastic anti-slip layer 12, which is a silicone layer or a rubber layer. When the pressure block 7 is pressed down, it can increase its contact area with the cable 11, thereby playing an anti-slip role and improving the stability during the cutting operation.

[0029] During operation, the extruded fireproof cable 11, after cooling, passes through the frame 1 and is wound up by the take-up roller. The cable 11 passes over the base plate 3. After one take-up roller finishes winding, the cutter 5 descends to cut the cable 11 that has passed over the base plate 3. During the cutting process, the pressure block 7 can be pressed down to fix the cable 11 to the base plate 3. The base plate 3 and the cable 11 move synchronously, and the cable 11 and the cutter 5 on the base plate 3 do not shift in the horizontal direction, improving the accuracy and quality of the cutting. After cutting, the base plate 3 is moved back to the initial position. It should be noted that when the pressure block 7 is not pressed down, the friction between the cable 11 and the base plate 3 is insufficient to move the base plate 3 along the slide rail 9. When the pressure block 7 is pressed down, the base plate 3 is fixed to the cable 11, and under the traction of the take-up roller, the base plate 3 moves along the slide rail 9.

[0030] Example 2

[0031] like Figure 4 , 5 As shown in Figure 7, the difference between this embodiment and Embodiment 1 is that both of the slide rails 9 are provided with linear modules 21, and the slider 8 is fixed on the slide table 20 of the corresponding linear module 21, and the two linear modules 21 operate synchronously.

[0032] During operation, the extruded fireproof cable 11, after cooling, is wound up by the take-up rollers on the frame 1. The cable 11 passes over the base plate 3. When a take-up roller finishes winding, a cutting operation is required. Under the action of the linear module 21, the slide table 20 drives the cutting component to move along the slide rail 9, ensuring that the cutting component and the cable 11 move at the same speed. The cutter 5 does not shift horizontally relative to the cable 11. The cutter 5 descends to cut the cable 11 on the base plate 3. During the cutting process, the pressure block 7 presses down, fixing the cable 11 to the base plate 3, maintaining the stability of the cable during cutting, and further improving the cutting effect. After cutting, the base plate returns to its initial position, waiting for the next cutting operation. Throughout the process, the clamping of the cable by the pressure block and the base plate does not affect the movement of the cable, allowing for continuous production of the extrusion molding process. The extruded cable can always maintain unimpeded movement.

[0033] Example 3

[0034] like Figure 6 , 7 As shown, the difference between this embodiment and Embodiment 1 is that the cutting assembly is equipped with a moving mechanism. The moving mechanism includes a horizontal screw 15, with connecting rods 17 connected to both ends of the horizontal screw 15. The connecting rods 17 are parallel to the support roller 2, and both ends of the connecting rods 17 are fixedly connected to the frame 1 via brackets 18. Both ends of the horizontal screw 15 are rotatably connected to the corresponding connecting rods 17 via bearings. One end of the horizontal screw 15 passes through the corresponding connecting rod 17 and is connected to a forward / reverse motor 16. A moving block 14 is threaded onto the horizontal screw 15. A guide rod 19 is fixed between the two connecting rods 17. The moving block 14 has a guide hole through which the guide rod 19 passes. A bracket 13 is fixed on bracket 4, and bracket 13 is fixedly connected to the moving block 14.

[0035] During operation, the extruded fireproof cable 11, after cooling, is wound up by the take-up rollers on the frame 1. The cable 11 passes over the base plate 3. When a take-up roller finishes winding, a cutting operation is required. The forward and reverse rotation of the reversible motor 16 causes the moving block 14 to move the cutting component back and forth along the slide rail 9. Adjusting the speed of the reversible motor 16 ensures that the cutting component and the cable 11 move at the same speed. The cutter 5 does not shift horizontally relative to the cable 11. The cutter 5 descends to cut the cable 11 on the base plate 3. During the cutting process, the pressure block 7 presses down, fixing the cable 11 to the base plate 3, maintaining the stability of the cable during cutting, and further improving the cutting effect. After cutting, the base plate returns to its initial position, waiting for the next cutting operation. Throughout the process, the clamping of the cable by the pressure block and the base plate does not affect the movement of the cable, allowing for continuous production of the extrusion molding process. The extruded cable can always maintain unimpeded movement.

[0036] The forward and reverse motors, linear modules, electric actuators, hydraulic cylinders, and pneumatic cylinders involved in the above embodiments 1, 2, and 3 are all existing technologies. This application does not make any improvements to them, but only utilizes their existing functions. For their specific structures and principles, please refer to the product manual or existing technical documents, which are all existing technologies.

[0037] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cutting-off device for fire-resistant cable extrusion, comprising a frame, characterized in that: The frame is equipped with a movable cutting component, and the frame at both ends of the cutting component is equipped with support rollers. The two sides of the frame corresponding to the cutting component are equipped with slide rails, and the slide rails are equipped with sliders. The cutting assembly includes a base plate and a cutter. The upper surface of the base plate is flush with the highest point of the support roller. The two sides of the base plate are connected to corresponding sliders. A bracket is provided on the base plate. A vertical telescopic rod 1 and a vertical telescopic rod 2 are provided on the bracket 1. The telescopic end of the vertical telescopic rod 1 is vertically downward and connected to the cutter. The telescopic end of the vertical telescopic rod 2 is vertically downward and connected to a pressure block.

2. A cut-off device for fire resistant cable extrusion according to claim 1, characterized in that: Both slide rails are equipped with linear modules, and the slider is fixed on the slide table of the corresponding linear module. The two linear modules operate synchronously.

3. The apparatus according to claim 1, wherein: The cutting assembly is equipped with a moving mechanism, which includes a horizontal screw. Connecting rods are attached to both ends of the horizontal screw. The connecting rods are parallel to the support rollers. Both ends of the connecting rods are fixedly connected to the frame via bracket two. The two ends of the horizontal screw are rotatably connected to their corresponding connecting rods via bearings. One end of the horizontal screw passes through the corresponding connecting rod and is connected to a forward / reverse motor. A moving block is threaded onto the horizontal screw. A guide rod is fixed between the two connecting rods. The moving block has a guide hole through which the guide rod passes. A bracket three is fixed to bracket one and is fixedly connected to the moving block.

4. The apparatus according to claim 1, wherein: The first vertical telescopic rod is a hydraulic cylinder or a pneumatic cylinder, and the second vertical telescopic rod is an electric push rod or a hydraulic cylinder.

5. The apparatus according to claim 1, wherein: The lower surface of the pressure block is arc-shaped and has a fixed elastic anti-slip layer.

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