Cooling device for cable extrusion process

Abstract

The utility model belongs to the field of cable production equipment, and provides a cooling device for a cable extrusion process, which comprises a water tank, rollers, an input roller group, a rack, a circulating pipe group and a water pump, a head water tank and a tail water tank are respectively arranged at two ends of the water tank, and the circulating pipe group comprises an outer circulating pipe communicated with the head water tank and the tail water tank and a water injection pipe communicated with the head water tank and the water tank. Square fins which are distributed in the length direction of the outer circulating pipe and connected with the water tank are arranged on the outer circulating pipe, a supporting plate is arranged on the tail water tank, an adjusting mechanism used for adjusting the cable pulling-out elevation angle is arranged on the supporting plate, and a plurality of inner cooling assemblies distributed front and back at intervals are arranged in the water tank. The hollow pipes of the inner cooling assembly are made of metal materials and are distributed on the two sides of the cable in the water tank, the bottom of the water tank is provided with the outer cooling assembly, and the outer cooling assembly comprises a plurality of cooling fins distributed in the length direction of the outer cooling assembly. The device is reasonable in design, simple in structure, good in cooling effect, beneficial to guaranteeing the cable traction efficiency and suitable for large-scale popularization.

Description

Technical Field

[0001] The utility model belongs to the field of cable production equipment, in particular to a cooling device for cable extrusion process. Background Art

[0002] In the cable extrusion process, the plastic is transformed from a solid state into a molten plastic object, and then the completely plasticized plastic is pushed into the die by the push or stirring of the screw. The material reaching the die flows through the annular gap between the mold core and the mold sleeve, is extruded from the mold sleeve port, and is extruded around the conductor and the core to form a continuous and dense insulation layer or sheath layer, and then cooled and solidified to make a cable product. The cooling and solidification of the plastic layer belongs to the shaping stage, which is carried out in a cooling water trough or cooling pipe. After cooling, the plastic extruded layer changes from an amorphous plastic state to a shaped solid state. Cooling is an important measure to ensure the geometric shape and internal structure of the product.

[0003] CN117292898A discloses a fireproof cable sheath cooling device, comprising a frame and a forming water tank, a centralized heat dissipation box, and a secondary cooling water tank arranged on the frame. The sheathed cable passes through the forming water tank, the centralized heat dissipation box, and the secondary cooling water tank in sequence. The centralized heat dissipation box comprises a box body and a rotating wheel rotatably connected in the box body. The rotating wheel is a hollow mesh structure. A water pump is arranged on the frame. The water pump sends the high-temperature water in the forming water tank into the rotating wheel from the axial direction of the rotating wheel. The forming water tank is connected to the secondary cooling water tank, and the secondary cooling water tank is connected to a cold water source. The cable drawn out from the forming water tank enters the secondary cooling water tank after being arranged on the rotating wheel for several turns. An exhaust pipe is arranged on the top of the box body, and the exhaust pipe is connected to the air inlet end of a blower. The device circulates the water in the water tank to improve the utilization rate of water, and the water in the water tank and the cable adopt a shallow contact method to improve the liquid gasification effect and the cooling effect on the cable. However, due to the long length of the cable, when passing through the rollers in the water tank, there is a possibility that part of the cable will slip out of the rollers, affecting the traction effect of the cable and increasing the traction resistance; furthermore, although the water in the water tank will continue to vaporize, the water in the water tank has a fixed supply end, so it will slowly accumulate. However, if the water is simply cooled by circulation and environmental heat dissipation, the online cooling effect of the cable will be reduced to a certain extent. Utility Model Content

[0004] In view of the technical problems existing in the above-mentioned cooling device, the utility model proposes a cooling device for a cable extrusion process which has reasonable design, simple structure, good cooling effect and is beneficial to ensuring the cable pulling efficiency.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: the utility model provides a cooling device for a cable extrusion process, including a water trough, in which a plurality of rollers distributed along the length direction thereof are arranged, an input roller group is arranged on one side of the water trough, a frame is arranged at the bottom of the water trough, a circulation pipe group and a water pump are arranged on the side of the water trough, a head water tank and a tail water tank are arranged at both ends of the water trough, the circulation pipe group includes an outer circulation pipe connecting the head water tank and the tail water tank, the outer circulation pipe is provided with square fins distributed along the length direction thereof and connected to the water trough, and the square fins are an inner circle and an outer square structure The circulation pipe group also includes a water injection pipe connecting the head water tank and the water tank, a support plate is provided on the tail water tank, and an adjustment mechanism for adjusting the cable pull-out elevation angle is provided on the support plate. A plurality of internal cooling components spaced apart from each other are provided inside the water tank, and the internal cooling component includes a door-shaped frame, and at least two hollow tubes extending into the water tank are provided on the door-shaped frame, and the hollow tubes are made of metal and are distributed on both sides of the cable in the water tank. An external cooling component is provided at the bottom of the water tank, and the external cooling component includes a plurality of heat sinks distributed along its length direction, and the heat sinks are vertically arranged on the inner side of the frame.

[0006] Preferably, the adjustment mechanism includes a hollow chuck and an adjustment plate, the side surface of the hollow chuck is axially movably matched with the guide hole arranged on the support plate, the head end of the hollow chuck is provided with a bowl-shaped mouth, the tail of the hollow chuck is provided with an external threaded tube, the adjustment plate is provided with a through hole for passing the external threaded tube, a nut connected to the external threaded tube is welded on the side of the adjustment plate facing away from the hollow chuck, a pair of connecting holes is provided on the top of the adjustment plate, the connecting holes are used to connect with the screw arranged on the support plate, and the screw is provided with an adjusting nut for limiting the front and rear position of the adjustment plate.

[0007] Preferably, the side surface of the hollow chuck is provided with a plurality of variable gap openings communicating with the head end thereof.

[0008] Preferably, the input roller group includes a first roller arranged on the head water tank, a second roller installed on the top of the water tank is arranged on one side of the first roller, a third roller is arranged on the side of the first roller facing away from the second roller, the diameter of the third roller is larger than that of the first roller, a fourth roller is arranged below the third roller, and the cable extends in an S shape along the fourth roller, the third roller and the first roller.

[0009] Preferably, a plug is provided at the bottom of the hollow tube, a countersunk groove is provided at the bottom of the plug, a spring contacting and cooperating with the bottom surface of the water tank is provided in the countersunk groove, the hollow tube is threadedly matched with the portal frame, coolant is provided inside the hollow tube, and a pressure reducing hole is provided on the side of the hollow tube.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] 1. The utility model provides a cooling device for cable extrusion process, which can cool and dissipate the water tank and the water in the water tank to a certain extent by arranging an internal cooling component and an external cooling component, and the square fins on the circulation pipe group can also cool the water on the circulation path, which is beneficial to improve the cooling effect of the cable.

[0012] 2. The utility model provides a cooling device for cable extrusion process. The internal cooling component can effectively limit the traction path of the cable on the roller, and the adjustment structure can be adjusted forward and backward to control the cable pull-out angle and pull-out tension, which is beneficial to improving the water-passing efficiency of the cable.

[0013] 3. The device has reasonable design, simple structure, good cooling effect and is conducive to ensuring cable traction efficiency, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 A schematic structural diagram of a cooling device for a cable extrusion process provided in an embodiment;

[0016] Figure 2 A side view of an internal cooling assembly provided for an embodiment;

[0017] Figure 3 An axonometric view of an adjustment mechanism provided for an embodiment;

[0018] Figure 4 A front view of the adjustment mechanism provided in the embodiment;

[0019] In the above figures, 1, water tank; 2, roller; 3, input roller group; 31, first roller shaft; 32, second roller shaft; 33, third roller shaft; 34, fourth roller shaft; 4, frame; 5, circulation pipe group; 51, external circulation pipe; 52, water injection pipe; 6, water pump; 7, head water tank; 8, tail water tank; 9, square fin; 10, support plate; 11, adjustment mechanism; 111, hollow chuck; 111a, bowl-shaped mouth; 111b, external threaded pipe; 111c, variable gap mouth; 112, adjustment plate; 113, nut; 114, connecting hole; 115, screw; 116, adjustment nut; 12, internal cooling assembly; 121, door frame; 122, hollow pipe; 123, plug; 124, spring; 125, pressure relief hole; 13, external cooling assembly; 131, heat sink. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Examples, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model provides a cooling device for cable extrusion process, including a water tank 1, in which a plurality of rollers 2 distributed along the length direction thereof are arranged, an input roller group 3 is arranged on one side of the water tank 1, a frame 4 is arranged at the bottom of the water tank 1, and a circulation pipe group 5 and a water pump 6 are arranged on the side of the water tank 1. On this basis, the water tank 1 provided by the utility model is provided with a head water tank 7 and a tail water tank 8 at both ends, respectively, and the circulation pipe group 5 includes an outer circulation pipe 51 connecting the head water tank 7 and the tail water tank 8, and the outer circulation pipe 51 is provided with square fins 9 distributed along the length direction thereof and connected to the water tank 1, and the square fins 9 are of an inner circle and outer square structure, and the circulation pipe group 5 also includes a water injection pipe 52 connecting the head water tank 7 and the water tank 1. The outer circulation pipe 51 obtains return water from the tail box when the water pump 6 acts, and then pumps the water into the water tank 1. On its return water path, square fins 9 are used to dissipate a certain amount of heat to the outer circulation pipe 51 and the water inside it, which can not only ensure the recycling rate of water, but also improve the cooling efficiency of the circulating water on the cable.

[0023] Further, the interior of the water tank 1 is provided with a plurality of inner cooling components 12 spaced apart from each other. The inner cooling component 12 comprises a door frame 121. The door frame 121 is provided with at least two hollow tubes 122 extending into the interior of the water tank 1. The hollow tubes 122 are made of metal and are distributed on both sides of the cable in the water tank 1. The bottom of the water tank 1 is provided with an outer cooling component 13. The outer cooling component 13 comprises a plurality of heat sinks 131 distributed along its length. The heat sink 131 is vertically arranged on the inner side of the frame 4. By arranging the inner cooling component 12 and the outer cooling component 13, the water tank 1 can be cooled. The trough 1 and the water in the water trough 1 are cooled and dissipated to a certain extent. For example, the metal hollow tube 122 of the inner cooling component 12 is in direct contact with water, and the heat dissipation performance of the hollow tube 122 is greater than the direct heat dissipation performance of water, and the hollow tube 122 is in contact with the air, which is beneficial to promote heat exchange; the outer cooling component 13 realizes heat dissipation through the heat sink 131, and the heat sink 131 is in an open environment, and adjacent heat sinks 131 can form gaps, which is beneficial to promote air circulation under the action of airflow pressure, further improving its heat dissipation performance, and thus can improve the cooling effect on the cable.

[0024] In order to improve the transmission efficiency of the cable, the hollow tube 122 provided by the utility model can effectively limit the traction path of the cable on the roller 2 to prevent the cable from slipping. In addition, a support plate 10 is provided on the tail water box 8 provided by the utility model. The support plate 10 is provided with an adjustment mechanism for adjusting the cable pull-out angle. The adjustment structure is used to extend and retract forwards and backwards to control the cable pull-out angle and pull-out tension, which is beneficial to improving the water-passing efficiency of the cable.

[0025] Specifically, the adjustment mechanism includes a hollow chuck 111 and an adjustment plate 112. The side of the hollow chuck 111 is axially movably matched with the guide hole set on the support plate 10. The head end of the hollow chuck 111 is provided with a bowl-shaped mouth 111a, and the tail of the hollow chuck 111 is provided with an external threaded tube 111b. The adjustment plate 112 is provided with a through hole for passing the external threaded tube 111b. A nut 113 connected to the external threaded tube 111b is welded on the side of the adjustment plate 112 facing away from the hollow chuck 111. The nut 113 provides the external threaded tube 111b with sufficient threaded connection distance and area. A pair of connecting holes 114 are provided at the top of the adjustment plate 112. The connecting holes 114 are used to connect with a screw 115 set on the support plate 10. The screw 115 is provided with an adjusting nut 116 for limiting the front and rear position of the adjustment plate 112. Among them, the bowl-shaped mouth 111a facilitates the cable to form a better second transition with it, especially when the cables are staggered; after the hollow clamp 111 passes through the support plate 10, the adjusting plate 112 is used to connect its tail, and then the screw 115 and the adjusting nut 116 are used to establish an axial connection relationship. In this way, the relative distance between the adjusting plate 112 and the support plate 10 can be controlled by adjusting the relative position of the adjusting nut 116 on the screw 115, and then the actual front and rear position of the hollow clamp 111 on the support plate 10 can be controlled, thereby adjusting the actual angle formed by the cable and the hollow clamp 111, so as to obtain a better traction effect.

[0026] In order to improve the matching performance between the hollow chuck 111 and the cable, the side of the hollow chuck 111 provided by the utility model is provided with a plurality of variable gaps 111c connected with its head end. The variable gaps 111c can change accordingly when the relative pressure between the cable and the hollow chuck 111 floats, so as to avoid the situation where the cable is passively pulled and the surface is scratched.

[0027] In order to improve the transmission stability of the cable, the input roller group 3 provided by the utility model includes a first roller 31 arranged on the head water tank 7, a second roller 32 installed on the top of the water tank 1 is arranged on one side of the first roller 31, and a third roller 33 is arranged on the side of the first roller 31 facing away from the second roller 32, the diameter of the third roller 33 is larger than the first roller 31, and a fourth roller 34 is arranged below the third roller 33, and the cable extends in an S shape along the fourth roller 34, the third roller 33 and the first roller 31. The conveying roller group 3 can have a certain tension on the cable in the process of entering the cooling process from the extrusion direction, avoiding a large degree of dragging and collapse, which is conducive to improving the stable pulling force applied to the cable in terms of traction, thereby improving the efficiency of the cable passing through water.

[0028] In order to improve the cooling performance of the internal cooling component 12, a plug 123 is provided at the bottom of the hollow tube 122, a countersunk groove is provided at the bottom of the plug 123, a spring 124 is provided in the countersunk groove to contact and cooperate with the inner bottom surface of the water tank 1, the hollow tube 122 is threadedly matched with the door frame 121, a coolant is provided inside the hollow tube 122, and a pressure relief hole 125 is provided on the side of the hollow tube 122. The spring 124 is used to improve the stability of the hollow tube 122 and the plug, and the coolant and the hollow tube 122 can form a combined cooling structure, and the thermal conductivity of the two alone is greater than that of water, so the cooling performance of the hollow tube 122 can be further improved, and the gas generated in the hollow tube 122 can be automatically discharged through the pressure relief hole 125.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A cooling device for cable extrusion process, comprising a water tank, a plurality of rollers distributed along the length direction of the water tank are arranged in the water tank, an input roller group is arranged on one side of the water tank, a frame is arranged at the bottom of the water tank, and a circulation pipe group and a water pump are arranged on the side of the water tank, characterized in that: A head water tank and a tail water tank are respectively provided at both ends of the water tank, the circulation pipe group includes an external circulation pipe connecting the head water tank and the tail water tank, the external circulation pipe is provided with square fins distributed along its length direction and connected to the water tank, the square fins are of an inner circle and outer square structure, the circulation pipe group also includes a water injection pipe connecting the head water tank and the water tank, a support plate is provided on the tail water tank, an adjustment mechanism for adjusting the cable pull-out elevation angle is provided on the support plate, a plurality of internal cooling components distributed at intervals front and back are provided inside the water tank, the internal cooling component includes a portal frame, at least two hollow tubes extending into the interior of the water tank are provided on the portal frame, the hollow tubes are made of metal and are distributed on both sides of the cable in the water tank, an external cooling component is provided at the bottom of the water tank, the external cooling component includes a plurality of heat sinks distributed along its length direction, and the heat sinks are vertically arranged on the inner side of the frame.

2. A cooling device for cable extrusion process according to claim 1, characterized in that: The adjustment mechanism includes a hollow chuck and an adjustment plate, the side surface of the hollow chuck is axially movably matched with a guide hole arranged on the support plate, the head end of the hollow chuck is provided with a bowl-shaped mouth, the tail of the hollow chuck is provided with an external threaded tube, the adjustment plate is provided with a through hole for passing the external threaded tube, a nut connected to the external threaded tube is welded on the side of the adjustment plate facing away from the hollow chuck, a pair of connecting holes is provided on the top of the adjustment plate, the connecting holes are used to connect with a screw arranged on the support plate, and the screw is provided with an adjusting nut for limiting the front and rear position of the adjustment plate.

3. A cooling device for cable extrusion process according to claim 2, characterized in that: The side surface of the hollow chuck is provided with a plurality of variable gap openings communicating with the head end thereof.

4. A cooling device for cable extrusion process according to claim 3, characterized in that: The input roller group includes a first roller shaft arranged on the head water tank, a second roller shaft installed on the top of the water tank is arranged on one side of the first roller shaft, a third roller shaft is arranged on the side of the first roller shaft facing away from the second roller shaft, the diameter of the third roller shaft is larger than the first roller shaft, a fourth roller shaft is arranged below the third roller shaft, and the cable extends in an S shape along the fourth roller shaft, the third roller shaft and the first roller shaft.

5. A cooling device for cable extrusion process according to claim 4, characterized in that: A plug is provided at the bottom of the hollow tube, a countersunk groove is provided at the bottom of the plug, a spring contacting and cooperating with the bottom surface of the water tank is provided in the countersunk groove, the hollow tube is threadedly matched with the portal frame, coolant is provided inside the hollow tube, and a pressure reducing hole is provided on the side of the hollow tube.

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