Cable production structure and tower type cable production device

Abstract

The present invention relates to the field of cable production technology, and provides a cable production structure and a tower-type cable production device. The cable production structure includes a base frame, a telescopic tube for passing cables, and a driving device. The driving device and the telescopic tube are arranged on the base frame. The driving device can drive the telescopic tube to extend and retract up and down along the height direction of the base frame. The upper end of the telescopic tube is arranged as a sealing connection end for sealingly connecting with the cable extrusion port of the cable extruder, and the sealing connection end includes a sealing member. When replacing the cable extrusion die on the cable extruder, the driving device drives the telescopic tube to move downward, so that the telescopic tube and the cable extrusion die are separated, so that the operator can quickly and conveniently replace the die. After the cable extrusion die is replaced, the driving device drives the telescopic tube to move upward, so that the sealing connection end at the upper end of the telescopic tube is sealed with the cable extrusion port of the cable extruder, ensuring that the sealing of the high-temperature and high-pressure production section is stable and reliable, and improving the production efficiency of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production, and in particular to a cable production structure and a tower-type cable production device. Background Art

[0002] With the rapid development of the cable industry, almost all major projects and equipment have an increasing demand for cables, and the performance and quality requirements are also getting higher and higher.

[0003] At present, the cable industry mostly uses vertical tower type high-voltage line production lines for cable production. Since the vertical tower type high-voltage line production line can well ensure the cylindricity of the cable during the vulcanization stage and ensure the high quality of the cable, it has been used.

[0004] However, since the height of the tower-type high-voltage line production line is basically around 120 meters, it is not easy to replace the cable extrusion die on the cable extruder when changing the cable specifications. In addition, after the replacement, the sealing of the high-temperature and high-pressure production section of the cable line is difficult to ensure. Once the sealing has problems, it will seriously affect the quality and performance of the cable, so that the produced cables do not meet the quality requirements, resulting in waste. Summary of the invention

[0005] The present invention provides a cable production structure to solve the technical problems in the prior art that the cable extrusion die on the cable extruder is not easy to replace when the cable specification needs to be changed and the sealing of the high-temperature and high-pressure production section cannot be effectively guaranteed.

[0006] A cable production structure provided by the present invention includes a base frame, a driving device and a telescopic tube for passing the cable, wherein the driving device and the telescopic tube are arranged on the base frame, and the driving device can drive the telescopic tube to extend and retract up and down along the height direction of the base frame, wherein the upper end of the telescopic tube is arranged as a sealed connection end for sealingly connecting to the cable extrusion port of a cable extruder, wherein the sealed connection end includes a sealing member.

[0007] Since the driving device can drive the telescopic tube for the cable to pass through to extend and retract up and down along the height direction of the base frame, when the cable extrusion die on the cable extruder needs to be replaced, the driving device drives the telescopic tube to move downward, so that the telescopic tube and the cable extrusion die are separated, so that the operator can quickly and conveniently replace the die. After the cable extrusion die is replaced, the driving device drives the telescopic tube to move upward, so that the sealing connection end at the upper end of the telescopic tube is sealed and connected with the cable extrusion port of the cable extruder, thereby ensuring stable and reliable sealing of the high-temperature and high-pressure production section and improving the production efficiency of the cable.

[0008] Further, the inner hole of the sealing connection end is formed as a cable extrusion port insertion hole, and the sealing member includes an annular sealing flange extending radially inward from the inner circumferential surface of the inner hole.

[0009] Furthermore, the annular sealing flange tapers in a radially inward direction, so that an upper side surface and a lower side surface of the annular sealing flange are formed as inclined surfaces.

[0010] Further, the sealing connection end includes a positioning flange sleeve, an annular flange surrounding the inner hole of the positioning flange sleeve axially extends from the inner peripheral area of ​​the upper end surface of the positioning flange sleeve, a plurality of circumferentially spaced connection holes are formed on the upper end surface of the annular flange, and the annular flange is configured to be connected to the flange of the cable extrusion port of the cable extruder; the positioning flange sleeve is connected to the upper end surface of the telescopic tube by a plurality of circumferentially spaced fasteners passing through the outer peripheral area of ​​the upper end surface of the positioning flange sleeve; wherein the sealing member is clamped between the lower end surface of the positioning flange sleeve and the upper end surface of the telescopic tube and extends radially inward into the inner hole to form the annular sealing flange.

[0011] Furthermore, an upper and lower guide unit is provided between the telescopic tube and the base frame.

[0012] Furthermore, the upper and lower guide units include guide rails and slide seats, wherein the guide rails are fixedly arranged on the base frame, and the slide seat can be slidably fitted on the guide rails; the base tube section at the lower end of the telescopic tube is fixedly arranged on the base frame, and the terminal tube section at the upper end of the telescopic tube is fixedly arranged on the slide seat, and the driving device is connected to the slide seat.

[0013] Furthermore, a position switch is provided on the base frame, wherein the driving device drives the telescopic tube to extend so that the sealing connection end is sealed and connected to the cable extrusion port of the cable extruder, until the position switch is triggered and the driving of the telescopic tube is stopped.

[0014] Furthermore, the cable production structure also includes a cable clamping unit arranged on the base frame, wherein, when the cable clamping unit is in a first state, the driving device can drive the telescopic tube to extend and retract up and down; when the cable clamping unit is in a second state, the cable clamping unit is located on the extension path of the telescopic tube and above the telescopic tube.

[0015] Furthermore, the cable clamping unit can slide and adjust its position in a horizontal direction perpendicular to the height direction of the base frame.

[0016] In addition, the present invention provides a tower-type cable production device, comprising a cable extruder and any of the above-described cable production structures, wherein, in the cable production state, the sealed connection end of the telescopic tube and the cable extrusion port of the cable extruder are sealed and connected.

[0017] As described above, through the cable production structure, the overall performance of the tower type cable production device is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 A schematic diagram of a partial structure of a cable production structure according to an embodiment of the present invention;

[0020] Figure 2 It is a side view structural schematic diagram of a cable production structure according to an embodiment of the present invention, wherein the cable clamping unit is in a second state;

[0021] Description of reference numerals:

[0022] 1-base frame, 2-sealed connection end, 3-seal, 4-positioning flange sleeve, 5-annular flange, 6-guide rail, 7-slide seat, 8-upper end pipe joint, 9-position switch, 10-cable clamping unit. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0024] refer to Figure 1 and Figure 2 An exemplary cable production structure is shown in FIG. 1 . The cable production structure provided by the present invention comprises a base frame 1, a driving device, and a telescopic tube for passing the cable, wherein the driving device and the telescopic tube are arranged on the base frame 1, and the driving device can drive the telescopic tube to move along the height direction of the base frame 1 (that is, Figure 2 The telescopic tube is configured to extend and retract up and down in the up and down directions in the graphical interface of the cable extruder, wherein the upper end of the telescopic tube is configured to be a sealed connection end 2 for sealed connection with the cable extrusion port of the cable extruder, wherein the sealed connection end 2 includes a sealing member 3.

[0025] Since the driving device can drive the telescopic tube for the cable to pass through to extend and retract up and down along the height direction of the base frame 1, when the cable extrusion die (including the cable extrusion port) on the cable extruder needs to be replaced, the driving device drives the telescopic tube to move downward, so that the telescopic tube and the cable extrusion die are separated, so that the operator can quickly and conveniently replace the die. After the cable extrusion die is replaced, the driving device drives the telescopic tube to move upward, so that the sealing connection end at the upper end of the telescopic tube is sealed and connected to the cable extrusion port of the cable extruder, thereby ensuring that the sealing of the high-temperature and high-pressure production section is stable and reliable, and improving the production efficiency of the cable.

[0026] Of course, it should be understood that in the cable production structure of the present invention, the sealing connection end 2 can have a variety of appropriate structural forms, but no matter which structural form is adopted, it only needs to be able to be stably and reliably sealed and connected to the cable extrusion port of the cable extruder.

[0027] For example, in one structural form, an annular groove extending around the inner cavity of the sealing connection end 2 is formed on the upper end surface of the sealing connection end 2, and a sealing ring is arranged in the annular groove, and an annular flange on the lower surface of the cable extrusion port of the cable extruder can extend into the annular groove and press the sealing ring, and then the connection is fastened by a fastening structure arranged between the sealing connection end 2 and the cable extrusion port.

[0028] Alternatively, in another structural form, the inner hole of the sealing connection end 2 is configured to accommodate a cable extrusion port, that is, the cable extrusion port can be inserted into the inner hole of the sealing connection end 2, so that the inner hole of the sealing connection end 2 is formed as a cable extrusion port insertion hole, and the seal 3 includes an annular sealing flange extending radially inward from the inner circumferential surface of the inner hole. For example, the seal 3 can be fixedly arranged in an annular groove on the inner circumferential surface of the inner hole, so that when the cable extrusion port of the cable extruder is inserted into the inner hole of the sealing connection end 2, the annular sealing flange will be squeezed to form a stable and reliable circumferential seal.

[0029] Of course, the annular sealing flange can have any appropriate structural form, for example, the annular sealing flange can be a rectangular parallelepiped or a semicircular body.

[0030] In order to further improve the sealing effect and facilitate the cable extrusion port of the cable extruder to be inserted into the inner hole of the sealing connection end 2, or to be removed from the inner hole of the sealing connection end 2, preferably, the annular sealing flange tapers in the radial inward direction so that the upper surface and the lower surface of the annular sealing flange are formed as inclined surfaces. In this way, when the cable extrusion port of the cable extruder is inserted, under the guidance of the inclined surface on the upper side, the cable extrusion port of the cable extruder is easier to be inserted into the sealing member 3. At the same time, when the cable extrusion port of the cable extruder needs to be removed from the inner hole of the sealing connection end 2, the inclined surface on the lower side makes it easier for the cable extrusion port of the cable extruder to be removed.

[0031] Of course, the cross-sectional shape of the annular sealing flange may be a trapezoid or a triangle, wherein the short side of the trapezoid or one corner of the triangle faces inward.

[0032] In addition, in the cable production structure of the present invention, the sealing connection end 2 can have any appropriate structural form. In order to further fix the sealing member 3 and facilitate the connection between the telescopic tube and the cable extrusion port of the cable extruder, preferably, as Figure 1 and Figure 2 As shown, the sealing connection end 2 includes a positioning flange sleeve 4, and an annular flange 5 surrounding the inner hole of the positioning flange sleeve is axially extended from the inner peripheral area of ​​the upper end surface of the positioning flange sleeve 4, and a plurality of circumferentially spaced connection holes are formed on the upper end surface of the annular flange 5, and the annular flange 5 is configured to be connected with the flange of the cable extrusion port of the cable extruder, so that when the cable extrusion port of the cable extruder is inserted into the inner hole of the sealing connection end 2, the flange on the cable extrusion port of the cable extruder will dock with the annular flange 5 and be fastened and connected by fasteners such as bolts or studs that fit in the connection hole; and the positioning flange sleeve 4 is connected to the upper end surface of the telescopic tube by a plurality of circumferentially spaced fasteners that pass through the outer peripheral area of ​​the upper end surface of the positioning flange sleeve 4; wherein the sealing member 3 is clamped between the lower end surface of the positioning flange sleeve 4 and the upper end surface of the telescopic tube and radially extends inward into the inner hole to form an annular sealing flange. In this way, the positioning flange sleeve 4 can not only cooperate with the upper end surface of the telescopic tube to clamp the sealing member therebetween, but also play the role of fastening the cable extrusion port of the cable extruder.

[0033] In addition, in the cable production structure of the present invention, the driving device can be of any appropriate type, and the driving device can also drive the telescopic tube to move along the height direction of the base frame 1 (that is, Figure 2 The up and down directions in the graphical interface of the device.

[0034] For example, the driving device may be a pneumatic cylinder or a hydraulic cylinder, and the movable joint of the telescopic tube is directly connected to the piston rod of the hydraulic cylinder.

[0035] Alternatively, in order to further improve the stability and reliability of the telescopic tube movement, preferably, an upper and lower guide unit is provided between the telescopic tube and the base frame 1, so that the telescopic tube can be guided to move up and down on the base frame 1 smoothly through the guidance of the upper and lower guide units.

[0036] Of course, the upper and lower guide units can have a variety of appropriate structural forms. For example, in one structural form, the upper and lower guide units include a guide channel formed on the base frame 1 and a guide column connected to the front end of the telescopic tube, and the guide column can fit in the guide channel and slide axially.

[0037] Or, in another structural form, such as Figure 1 and Figure 2 As shown, the upper and lower guide units include a guide rail 6 and a slide 7, wherein the guide rail 6 is fixedly arranged on the base frame 1, and the slide 7 can be slidably matched on the guide rail 6; the lower end base pipe section of the telescopic tube is fixedly arranged on the base frame 1, and the upper end pipe section 8 of the telescopic tube is fixedly arranged on the slide 7, and the driving device is connected to the slide 7. In this way, for example, the hydraulic cylinder drives the slide 7 to move up and down, thereby driving the upper end pipe section 8 arranged on the slide 7 to move up and down to adjust the position.

[0038] In addition, the drive device can drive the telescopic tube to extend to any desired position. For example, in order to further improve the accuracy of this position control, preferably, Figure 2 As shown, a position switch 9 is provided on the base frame 1, wherein the driving device drives the telescopic tube to extend so that the sealing connection end 2 is sealed and connected with the cable extrusion port of the cable extruder, for example, the cable extrusion port is inserted into the inner hole of the sealing connection end 2, until the position switch 9 is triggered and the telescopic tube is stopped from being driven. At this time, it means that the connection between the sealing connection end 2 and the cable extrusion port is in place, and the connection can be fastened by a fastener.

[0039] In addition, if Figure 1 and Figure 2 As shown, the cable production structure also includes a cable clamping unit 10 arranged on the base frame 1, wherein, when the cable clamping unit 10 is in a first state, the driving device can drive the telescopic tube to extend and retract up and down, at this time, the sealing connection end 2 and the cable extrusion port can be connected; when the cable clamping unit 10 is in a second state, the cable clamping unit 10 is located on the extension path of the telescopic tube and above the telescopic tube, at this time, the cable specifications can be changed.

[0040] That is, when it is necessary to change the cable specification, the hydraulic cylinder drives the telescopic tube to move downward, disengages the sealing connection end 2 and the cable extrusion port, and then converts the cable clamping unit 10 from the first state to the second state. At this time, the cable clamping unit 10 can clamp the old cable head in the telescopic tube, that is, clamp the cut cable conductor that has been produced, and the cable extrusion die on the cable extruder can be replaced. After the replacement, the newly extruded cable extends out and is connected with the old cable head, such as by welding, and then the cable clamping unit 10 is converted to the first state. At this time, the hydraulic cylinder drives the telescopic tube to move upward and re-seal and connect with the cable extrusion port, thereby ensuring the sealing of the high temperature and high pressure production section of the cable in the cable production structure.

[0041] Of course, the cable clamping unit 10 can have any suitable structural form, but no matter which structural form is adopted, it only needs to be able to clamp the cable head. For example, the cable clamping unit 10 includes a vise-like clamp at the front end, which can clamp the cut and produced cable conductor.

[0042] In addition, the cable clamping unit 10 can have a variety of movement forms. For example, the cable clamping unit 10 can include two clamping arms that can rotate and separate; or, considering that the utilization rate of the cable clamping unit 10 is low and in order to reduce costs, manual movement is adopted. At this time, in order to facilitate manual movement, the cable clamping unit 10 can be slidably adjusted in the horizontal direction perpendicular to the height direction of the base frame 1. For example, it can be movably set on the base frame through spring self-aligning rollers. In this way, manpower can easily push it when needed.

[0043] Finally, the present invention provides a tower-type cable production device, comprising a cable extruder and any of the above-mentioned cable production structures, wherein in the cable production state, the sealed connection end 2 of the telescopic tube is sealed and connected to the cable extrusion port of the cable extruder. As described above, through the cable production structure, the overall performance of the tower-type cable production device is significantly improved.

[0044] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in this disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0045] It will be appreciated that the present invention is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.

Claims

1. A cable production structure, characterized in that: The invention comprises a base frame (1), a driving device and a telescopic tube for passing cables, wherein the driving device and the telescopic tube are arranged on the base frame (1), and the driving device can drive the telescopic tube to extend and retract up and down along the height direction of the base frame (1), wherein: The upper end of the telescopic tube is configured as a sealing connection end (2) for sealingly connecting to a cable extrusion port of a cable extruder, wherein the sealing connection end (2) includes a sealing member (3); The inner hole of the sealing connection end (2) is formed as a cable extrusion port insertion hole, and the sealing member (3) comprises an annular sealing flange extending radially inward from the inner circumferential surface of the inner hole; The sealing connection end (2) comprises a positioning flange sleeve (4), an annular flange (5) surrounding the inner hole of the positioning flange sleeve axially extends from the inner peripheral area of ​​the upper end surface of the positioning flange sleeve (4), a plurality of connection holes arranged at intervals in the circumferential direction are formed on the upper end surface of the annular flange (5), and the annular flange (5) is configured to be connected to a flange of a cable extrusion port of a cable extruder; The positioning flange sleeve (4) is connected to the upper end surface of the telescopic tube by means of a plurality of circumferentially spaced fasteners passing through the outer peripheral area of ​​the upper end surface of the positioning flange sleeve (4); The sealing member (3) is clamped between the lower end surface of the positioning flange sleeve (4) and the upper end surface of the telescopic tube and extends radially inward into the inner hole to form the annular sealing flange.

2. The cable production structure according to claim 1, characterized in that: The annular sealing flange tapers in a radially inward direction so that an upper side surface and a lower side surface of the annular sealing flange are formed as inclined surfaces.

3. The cable production structure according to claim 1, characterized in that: An upper and lower guide unit is arranged between the telescopic tube and the base frame (1).

4. The cable production structure according to claim 3, characterized in that: The upper and lower guide units include a guide rail (6) and a slide seat (7), wherein: The guide rail (6) is fixedly arranged on the base frame (1), and the slide seat (7) can be slidably fitted on the guide rail (6); The base pipe section at the lower end of the telescopic tube is fixedly arranged on the base frame (1), the terminal pipe section (8) at the upper end of the telescopic tube is fixedly arranged on the slide seat (7), and the driving device is connected to the slide seat (7).

5. The cable production structure according to claim 1, characterized in that: The base frame (1) is provided with a position switch (9), wherein: The driving device drives the telescopic tube to extend so that the sealed connection end (2) is sealed and connected to the cable extrusion port of the cable extruder, until the position switch (9) is triggered and the driving of the telescopic tube is stopped.

6. The cable production structure according to claim 1, characterized in that: The cable production structure further comprises a cable clamping unit (10) arranged on the base frame (1), wherein: When the cable clamping unit (10) is in a first state, the driving device can drive the telescopic tube to extend and retract upward and downward; When the cable clamping unit (10) is in the second state, the cable clamping unit (10) is located on the extension path of the telescopic tube and above the telescopic tube.

7. The cable production structure according to claim 6, characterized in that: The cable clamping unit (10) can be slidably adjusted in position in a horizontal direction perpendicular to the height direction of the base frame (1).

8. A tower-type cable production device, characterized in that: It comprises a cable extruder and a cable production structure according to any one of claims 1 to 7, wherein: In the cable production state, the sealed connection end (2) of the telescopic tube is sealed and connected to the cable extrusion port of the cable extruder.

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