A cooling device for cable extrusion production

Abstract

The utility model relates to a cooling device for cable extrusion production, including a cooling cylinder, a collecting trough, a transfer pipe, a connecting plate and a condensed water storage tank; one end of the transfer pipe is connected to the collecting trough, and the other end is connected to the condensed water storage tank; the collecting trough cover is arranged directly below the cooling cylinder, the width of the collecting trough is greater than the diameter of the cooling cylinder, and the collecting trough extends along the axial direction of the cooling cylinder; the connecting plate is arranged directly below the cooling cylinder, the length direction of the connecting plate extends along the axial direction of the cooling cylinder, and the width direction extends along the vertical direction, the upper end of the connecting plate is fixed on the cooling cylinder, the lower end face of the connecting plate is an inclined surface, which is inclined downward by 0.5°~2° in the direction pointing to the transfer pipe, and the lower end face of the connecting plate is fixedly connected to the inner surface of the collecting trough. Compared with the prior art, the cooling device for cable extrusion production of the utility model avoids the noise pollution caused by the dripping of condensed droplets on the surface of the cooling cylinder, and can collect condensed water, avoiding the waste of water resources.

Description

Technical Field

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

[0002] In the production process of wires and cables, the production of plastic insulation and sheaths is mainly completed by single-screw extruders through continuous extrusion. The specific extrusion method is: first, the plastic is transformed into a viscous flow state under the dual effects of the external heat of the barrel and the shear friction heat between the plastic and the equipment. Then, the completely plasticized plastic is pushed into the machine head through the push or stirring of the screw, extruded from the mold sleeve mouth through the annular gap between the mold core and the mold sleeve, and extruded around the wire core or cable core to form a continuous and dense insulation layer or sheath layer. The formed plastic extruded layer should be cooled and deformed immediately after leaving the machine head, otherwise the plastic extruded layer is easy to deform under the action of gravity.

[0003] At present, the plastic extruded layer of wires and cables usually uses a cooling water trough to cool and shape the cable, that is, the cable extruded from the head is introduced into the cooling water trough, and the heat is dissipated and cooled by the contact heat transfer between the insulation and sheath layers and the water. With the development of technology, and in order to further improve production efficiency, the extrusion speed of the extruder is getting faster and faster, which requires improving the cooling capacity of the auxiliary cooling device. In order to adapt to the extrusion speed of the extruder, the cooling capacity is generally increased by lengthening the cooling water trough, so that the residence time of the wires and cables in the cooling trough is prolonged, but this will cause the cooling water trough to occupy a larger production space, which increases the area occupied by the extrusion production line.

[0004] The Chinese utility model patent with the authorization announcement number CN21793456U discloses a high-efficiency cooling device for cable extrusion, which includes a cooling base, a high-efficiency cooling cylinder is fixedly arranged on the top of the cooling base, a hole for extruded cables is provided on one side of the high-efficiency cooling cylinder, a heat exchange cavity is provided inside the high-efficiency cooling cylinder, a plurality of cooling water baffle rings evenly distributed are fixedly arranged inside the heat exchange cavity, a cooling water injection pipe communicating with the inside of the heat exchange cavity is fixedly arranged on one side of the high-efficiency cooling cylinder, and a cooling water injection pipe communicating with the inside of the heat exchange cavity is fixedly arranged on the top of the high-efficiency cooling cylinder. A row of cooling cylinders communicated with the inside of the cavity, one end of the cooling base is fixedly provided with an air cooling rack, one side of the air cooling rack is fixedly installed with a switch plate, and the surface of the switch plate is fixedly installed with a cooling switch. The cooling device uses an efficient cooling cylinder that can continuously circulate cooling water to guide the cooling of the extruded cable. The circulating cooling water can quickly carry the heat on the surface of the cable and discharge it, and cooperate with the cooling fan to continuously blow around the periphery of the cable, so that the contact area between the water-cooled cable and the circulating airflow is larger and more comprehensive, thereby achieving fast and efficient cooling of the extruded cable, and the cooling effect is good and the speed is fast. However, when the cooling device is used, the steam in the air will condense on the surface of the low-temperature cooling cylinder, gather into drops and then drip. On the one hand, the water droplets will make a ticking sound, forming noise pollution; on the other hand, a large number of water droplets may make the surrounding muddy, and there is also the problem of water resource waste. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a cooling device for cable extrusion production.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A cooling device for cable extrusion production, comprising a cooling cylinder, a collecting trough, a transfer pipe and a condensed water storage tank; one end of the transfer pipe is connected to the collecting trough, and the other end is connected to the condensed water storage tank, and the condensed water storage tank is used to store condensed water for reuse; the collecting trough cover is arranged directly below the cooling cylinder, the width of the collecting trough is greater than the diameter of the cooling cylinder, and the collecting trough extends along the axial direction of the cooling cylinder; the cooling device for cable extrusion production also includes a connecting plate, which is arranged directly below the cooling cylinder, the length direction of the connecting plate extends along the axial direction of the cooling cylinder, and the width direction extends along the vertical direction, the upper end of the connecting plate is fixed on the cooling cylinder, and the lower end face of the connecting plate is an inclined surface, which is inclined downward by 0.5°~2° in the direction pointing to the transfer pipe, and the lower end face of the connecting plate is fixedly connected to the inner surface of the collecting trough.

[0008] Furthermore, guide plates are respectively arranged on both sides of the collecting trough, the guide plates are arranged obliquely, and the lower ends of the guide plates are fixed on the upper end surfaces of the side walls on both sides of the collecting trough.

[0009] Furthermore, the cooling device for cable extrusion production also includes a baffle ring and a baffle bar; the baffle ring is sleeved on the outer wall of the cooling cylinder, and the baffle bars are respectively arranged on both sides of the connecting plate, the baffle bars extend in the vertical direction, and the upper end of the baffle bar is fixed on the baffle ring.

[0010] Furthermore, the retaining rings and retaining bars include at least three groups, which are evenly spaced apart along the axial direction of the cooling cylinder.

[0011] Furthermore, a V-shaped groove is provided on the inner bottom surface of the collecting groove, and the V-shaped groove extends along the length direction of the collecting groove.

[0012] Furthermore, a transfer tank is provided at one end of the collecting tank for connecting with the transfer pipe, the collecting tank is communicated with the transfer tank, and one end of the transfer pipe is communicated with the lower end of the transfer tank.

[0013] Furthermore, the condensate storage tank includes a tank body, a drain pipe, a solenoid valve, a liquid level sensor and a processor; one end of the drain pipe is fixed to the lower end of the tank body, and the solenoid valve is arranged on the drain pipe; the other end of the transfer pipe is fixed to the upper end of the tank body, and the liquid level sensor is arranged on the inner surface wall of the tank body, and the solenoid valve and the liquid level sensor are respectively connected to the processor with electrical signals.

[0014] The utility model provides a cooling device for cable extrusion production, which has the following beneficial effects compared with the prior art:

[0015] The utility model sets a connecting plate. When condensed water gathers into drops on the surface of the cooling cylinder, it flows downward along the surface under the action of surface tension, and flows into the collecting tank under the guiding action of the connecting plate, so as to prevent the condensed water from gathering into drops on the outer wall of the cooling cylinder and directly dripping into the collecting tank, thereby avoiding the dripping noise; the lower end face of the connecting plate is tilted so that the collecting tank forms an inclination angle of 0.5°~2°, which is conducive to the condensed water gathering at one end of the collecting tank close to the transfer pipe, and facilitates the condensed water to flow into the condensed water storage tank through the transfer pipe. Compared with the prior art, the cooling device for cable extrusion production of the utility model avoids the noise pollution caused by the dripping of condensed water drops on the surface of the cooling cylinder, and can collect condensed water, thereby avoiding the waste of water resources.

[0016] By setting a guide plate, when the cooling cylinder leaks, the guide plate allows the leaked water to flow into the collection tank, reducing the splashing of the leaked water and soaking the interior decoration. By setting a retaining ring and a retaining bar, the flow direction of the condensed water gathered on the outer surface of the water pump and the outer surface of the connecting plate is blocked, which is conducive to the condensed water flowing into the collection tank. By setting multiple sets of retaining rings and retaining bars, a segmented blockage is formed, which is conducive to the accumulation of condensed water in the collection tank. By setting a V-shaped groove, the condensed water in the collection tank is accumulated in the V-shaped groove, which is conducive to the formation of water flow in the V-shaped groove, reducing the condensed water adhering to the inner surface of the collection tank, being evaporated, and increasing the humidity in the room. By setting a transfer tank, the connection between the collection tank and the transfer pipe is facilitated, reducing or avoiding the overflow of condensed water from the collection tank to the transfer pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the cooling device for cable extrusion production of the utility model;

[0018] Figure 2 This is a rear view of an embodiment of the cooling device for cable extrusion production of the utility model;

[0019] Figure 3 This is a cross-sectional view of an embodiment of a cooling device for cable extrusion production according to the utility model;

[0020] Figure 4 It is a partial cross-sectional view of an embodiment of a cooling device for cable extrusion production according to the utility model.

[0021] Numbers in the figure: 1-cooling cylinder, 2-collecting tank, 3-transfer pipe, 4-connecting plate, 5-condensate storage tank, 51-tank body, 52-drain pipe, 53-solenoid valve, 54-liquid level sensor, 55-processor, 6-guide plate, 7-blocking ring, 8-blocking bar, 9-V-shaped groove, 10-transfer tank, 11-waist-shaped through hole. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0023] The specific structure of the cooling device embodiment of the utility model for cable extrusion production is as follows Figure 1-4As shown, it includes a cooling cylinder 1, a collecting tank 2, a transfer pipe 3, a connecting plate 4 and a condensed water storage tank 5; one end of the transfer pipe 3 is connected to the collecting tank 2, and the other end is connected to the condensed water storage tank 5, and the condensed water storage tank 5 is used to store condensed water for reuse; the collecting tank 2 is covered and arranged directly below the cooling cylinder 1, the width of the collecting tank 2 is greater than the diameter of the cooling cylinder 1, and the collecting tank 2 extends along the axial direction of the cooling cylinder 1. The connecting plate 4 is arranged directly below the cooling cylinder 1, the length direction of the connecting plate 4 extends along the axial direction of the cooling cylinder 1, and the width direction extends along the vertical direction. The upper end of the connecting plate 4 is fixed on the cooling cylinder 1, and the lower end face of the connecting plate 4 is an inclined surface, which is inclined downward by 1° in the direction pointing to the transfer pipe 3, and the lower end face of the connecting plate 4 is fixedly connected to the inner surface of the collecting tank 2. A waist-shaped through hole 11 is opened on the connecting plate 4 to facilitate the installation of the cooling cylinder 1. In other embodiments, the lower end face of the connecting plate is an inclined surface, and the downward inclination angle in the direction pointing to the transfer pipe can be 0.5° or 2° instead of 1°.

[0024] In this embodiment, guide plates 6 are respectively provided on both sides of the collecting tank 2. The guide plates 6 are inclined, and the lower ends of the guide plates 6 are fixed on the upper end surfaces of the side walls of the collecting tank 2. By providing the guide plates 6, when the cooling cylinder 1 leaks, the guide plates 6 allow the leaked water to flow into the collecting tank 2, reducing the splashing of the leaked water and causing the indoor decoration to be soaked. A retaining ring 7 is sleeved on the outer wall of the cooling cylinder 1, and retaining bars 8 are provided on both sides of the connecting plate 4. The retaining bars 8 extend in the vertical direction, and the upper ends of the retaining bars 8 are fixed on the retaining ring 7. By providing the retaining ring 7 and the retaining bar 8, the flow direction of the condensed water gathered on the outer surface of the water pump and the outer surface of the connecting plate 4 is blocked, which is conducive to the condensed water flowing into the collecting tank 2. The retaining ring 7 and the retaining bar 8 include 4 groups, which are evenly spaced along the axial direction of the cooling cylinder 1; by providing 4 groups of retaining rings 7 and retaining bars 8, segmented blocking is formed, which is conducive to the gathering of condensed water in the collecting tank 2. In other embodiments, the number of groups of retaining rings and retaining bars is 3 or 5 or more, and they are evenly spaced apart along the axial direction of the cooling cylinder.

[0025] In this embodiment, a V-shaped groove 9 is provided on the inner bottom surface of the collecting tank 2, and the V-shaped groove 9 extends along the length direction of the collecting tank 2; by providing the V-shaped groove 9, the condensed water in the collecting tank 2 is gathered in the V-shaped groove 9, which is conducive to forming a water flow in the V-shaped groove 9, reducing the condensed water adhering to the inner surface of the collecting tank 2, being evaporated, and increasing the humidity in the room. A transfer tank 10 is provided at one end of the collecting tank 2 for connection with the transfer pipe 3, the collecting tank 2 is connected to the transfer tank 10, and one end of the transfer pipe 3 is connected to the lower end of the transfer tank 10. By providing the transfer tank 10, the connection between the collecting tank 2 and the transfer pipe 3 is facilitated, and the overflow of condensed water from the collecting tank to the transfer pipe 3 is reduced or avoided. In other embodiments, no transfer tank is provided between the collecting tank and the transfer pipe, or a water collecting tank is provided instead of the transfer tank.

[0026] In this embodiment, the condensate storage tank 5 includes a tank body 51, a drain pipe 52, a solenoid valve 53, a liquid level sensor 54 and a processor 55; one end of the drain pipe 52 is fixed to the lower end of the tank body 51, and the solenoid valve 53 is arranged on the drain pipe 52; the other end of the transfer pipe 3 is fixed to the upper end of the tank body 51, and the liquid level sensor 54 is arranged on the inner wall of the tank body 51, and the solenoid valve 53 and the liquid level sensor 54 are respectively connected with the processor 55 by electrical signals; the electrical signal connection is specifically a guided connection, the processor 55 is a programmable 51 single-chip microcomputer, and the liquid level sensor 54 is a immersion liquid level sensor 54; when the condensate stored in the tank body 51 floods the liquid level sensor 54, the liquid level sensor 54 generates an electrical signal and transmits it to the processor 55. After analysis and processing by the processor 55, an instruction is sent to the solenoid valve 53, the solenoid valve 53 is opened, and the condensate in the tank body 51 is discharged; to prevent excessive storage of condensate in the tank body 51 from overflowing. In other embodiments, a manual valve is provided in the liquid discharge pipe, and the manual valve is manually controlled to replace the solenoid valve, the liquid level sensor and the processor.

[0027] When the condensed water gathers into drops on the surface of the cooling cylinder 1, it flows downward along the surface under the action of surface tension, and flows into the collecting tank 2 under the guidance of the connecting plate 4, preventing the condensed water from gathering into drops on the outer wall of the cooling cylinder 1 and dripping directly into the collecting tank 2, thereby avoiding the ticking noise when dripping; due to the inclined setting of the collecting tank 2 and the effect of the V-shaped groove 9, the condensed water flows into the condensed water storage tank 5 through the transfer tank 10 and the transfer pipe 3 for reuse.

[0028] The utility model sets a connecting plate. When condensed water gathers into drops on the surface of the cooling cylinder, it flows downward along the surface under the action of surface tension, and flows into the collecting tank under the guiding action of the connecting plate, so as to prevent the condensed water from gathering into drops on the outer wall of the cooling cylinder and directly dripping into the collecting tank, thereby avoiding the dripping noise; the lower end face of the connecting plate is tilted so that the collecting tank forms an inclination angle of 0.5°~2°, which is conducive to the condensed water gathering at one end of the collecting tank close to the transfer pipe, and facilitates the condensed water to flow into the condensed water storage tank through the transfer pipe. Compared with the prior art, the cooling device for cable extrusion production of the utility model avoids the noise pollution caused by the dripping of condensed water drops on the surface of the cooling cylinder, and can collect condensed water, thereby avoiding the waste of water resources.

[0029] By setting a guide plate, when the cooling cylinder leaks, the guide plate allows the leaked water to flow into the collection tank, reducing the splashing of the leaked water and soaking the interior decoration. By setting a retaining ring and a retaining bar, the flow direction of the condensed water gathered on the outer surface of the water pump and the outer surface of the connecting plate is blocked, which is conducive to the condensed water flowing into the collection tank. By setting multiple sets of retaining rings and retaining bars, a segmented blockage is formed, which is conducive to the accumulation of condensed water in the collection tank. By setting a V-shaped groove, the condensed water in the collection tank is accumulated in the V-shaped groove, which is conducive to the formation of water flow in the V-shaped groove, reducing the condensed water adhering to the inner surface of the collection tank, being evaporated, and increasing the humidity in the room. By setting a transfer tank, the connection between the collection tank and the transfer pipe is facilitated, reducing or avoiding the overflow of condensed water from the collection tank to the transfer pipe.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A cooling device for cable extrusion production, comprising a cooling cylinder, a collecting tank, a transfer pipe and a condensed water storage tank; one end of the transfer pipe is connected to the collecting tank, and the other end is connected to the condensed water storage tank, and the condensed water storage tank is used to store condensed water for reuse; the collecting tank cover is arranged directly below the cooling cylinder, the width of the collecting tank is greater than the diameter of the cooling cylinder, and the collecting tank extends along the axial direction of the cooling cylinder; characterized in that, The cooling device for cable extrusion production also includes a connecting plate, which is arranged directly below the cooling cylinder. The length direction of the connecting plate extends along the axial direction of the cooling cylinder, and the width direction extends along the vertical direction. The upper end of the connecting plate is fixed on the cooling cylinder, and the lower end surface of the connecting plate is an inclined surface, which is inclined downward by 0.5°~2° in the direction pointing to the transfer tube. The lower end surface of the connecting plate is fixedly connected to the inner surface of the collecting tank.

2. The cooling device for cable extrusion production according to claim 1, characterized in that: Guide plates are respectively arranged on both sides of the collecting trough. The guide plates are arranged obliquely, and the lower ends of the guide plates are fixed on the upper end surfaces of the side walls on both sides of the collecting trough.

3. The cooling device for cable extrusion production according to claim 2, characterized in that: The cooling device for cable extrusion production also includes a baffle ring and a baffle bar; the baffle ring is sleeved on the outer wall of the cooling cylinder, and the baffle bars are respectively arranged on both sides of the connecting plate. The baffle bars extend in the vertical direction, and the upper ends of the baffle bars are fixed on the baffle ring.

4. The cooling device for cable extrusion production according to claim 3, characterized in that: The retaining rings and retaining bars include at least three groups, which are evenly spaced and arranged along the axial direction of the cooling cylinder.

5. The cooling device for cable extrusion production according to claim 2, characterized in that: A V-shaped groove is arranged on the inner bottom surface of the collecting groove, and the V-shaped groove extends along the length direction of the collecting groove.

6. The cooling device for cable extrusion production according to claim 4, characterized in that: A transfer tank is provided at one end of the collecting tank for connecting with the transfer pipe, the collecting tank is communicated with the transfer tank, and one end of the transfer pipe is communicated with the lower end of the transfer tank.

7. The cooling device for cable extrusion production according to claim 1, characterized in that: The condensate storage tank includes a tank body, a drain pipe, a solenoid valve, a liquid level sensor and a processor; one end of the drain pipe is fixed to the lower end of the tank body, and the solenoid valve is arranged on the drain pipe; the other end of the transfer pipe is fixed to the upper end of the tank body, and the liquid level sensor is arranged on the inner surface wall of the tank body, and the solenoid valve and the liquid level sensor are respectively connected to the processor with electrical signals.

Images