Reshaping die for cable

Abstract

The utility model belongs to the technical field of cable cabling devices, and provides a shaping die for a cable, which comprises a plurality of shaping blocks which are sequentially adjacent to each other, a shaping hole for the cable to pass through is formed after the plurality of shaping blocks are encircled, the shaping hole is used for shaping the cable, and two adjacent shaping blocks are movably abutted against each other; and the air bag part wraps the outer sides of the multiple shaping blocks and is used for fastening or loosening the multiple shaping blocks. Compared with the prior art, the shaping holes of the cable are formed by arranging the plurality of shaping blocks which are adjacent in sequence, and the shaping blocks are fastened or loosened by utilizing the air bag pieces, so that when the outer diameter of the cable needing to be shaped is too large, the size of the shaping holes can be properly increased by releasing air in the air bag pieces, the shaping of the cable can be realized, and the shaping efficiency can be improved. And the phenomenon of mold clamping can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable stranding device technical field, concretely relates to a shaping mould for cable. BACKGROUND

[0002] In the cable structure, the aluminum plastic composite tape is used as the metal shielding layer, is bonded together with the sheath material and constitutes the comprehensive protection layer, plays the moisture-proof layer function of protecting the cable core from moisture erosion, has the function of enhancing the mechanical strength to the cable core, resists the external mechanical force, provides the mechanical protection for the installation of the cable in various application scenes, and ensures the stability and reliability of use.

[0003] In the production process, the outer layer of the aluminum plastic composite tape is manufactured synchronously with the extruded outer sheath. The tape laying device and the longitudinal wrapping device are additionally arranged between the cable reel and the sheath extrusion device. The longitudinal wrapping device is responsible for winding the aluminum plastic composite tape on the cable to form the aluminum plastic composite layer, and sealing at the interface by using hot melt adhesive. Then, the cable passes through the sizing mold and then the extrusion process of the outer sheath. The sizing mold, the extrusion device and the cable core need to maintain a high concentricity to avoid uneven thickness of the extruded sheath. The function of the sizing mold is to make the aluminum plastic composite layer coated with hot melt adhesive more closely bonded, and also to ensure that the cable with the wrapped aluminum plastic composite layer remains circular, so that the extruded outer sheath can uniformly wrap the aluminum plastic composite layer.

[0004] At present, the mold for forming the aluminum plastic composite tape is mostly made of nylon material, and the size thereof must match the diameter of the cable after wrapping the aluminum plastic composite tape. The mold and the support frame are rigidly connected. If the cable outer diameter cannot be well controlled after wrapping the aluminum plastic composite tape, the cable may encounter difficulty in passing through the forming mold, resulting in the phenomena of mold jamming or rubbing, which not only affects the roundness of the cable, but also may cause the entire cable to be scrapped in severe cases. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a shaping mold for cable, which increases the secondary cavity and the reserved cavity in the mold cavity, and uses multiple clamps to process the product, and finally processes the workpiece through the arrayed machining tool bits, so as to obtain a simple workpiece processing device and method.

[0006] The utility model solves the technical problems by adopting the technical scheme of a shaping mold for cable, which comprises: a plurality of sequentially adjacent shaping blocks, and a shaping hole for the cable to pass through is formed after the plurality of shaping blocks are enclosed, the shaping hole is used for shaping operation on the cable, and the two adjacent shaping blocks are movably abutted;

[0007] An air bag member is arranged outside the plurality of shaping blocks and is used to fasten or loosen the plurality of shaping blocks.

[0008] In the shaping mold for cables in the above embodiment, each shaping block is provided with at least two adjacent side surfaces at an included angle, which are used to position the adjacent shaping blocks.

[0009] In the shaping mold for cables in the above embodiment, the included angle is a right angle.

[0010] In the shaping mold for cables in the above embodiment, the shaping blocks are provided in two.

[0011] In the shaping mold for cables in the above embodiment, the outer shell is provided with a circular-arc groove inside, and the air bag member is arranged in the circular-arc groove to provide support for the air bag member.

[0012] In the shaping mold for cables in the above embodiment, the air bag member comprises support rings connected to two ends of the outer shell, and a rubber pad connected between the two support rings.

[0013] In the shaping mold for cables in the above embodiment, one end of each support ring extends into the outer shell.

[0014] In the shaping mold for cables in the above embodiment, each support ring is provided with a plurality of counter-sunk holes, and the outer shell is provided with a threaded hole corresponding to each counter-sunk hole at two ends, and one end of a bolt passes through the counter-sunk hole and is connected in the threaded hole.

[0015] In the shaping mold for cables in the above embodiment, the outer shell is provided with a through hole penetrating the side wall of the outer shell and communicating with the inside of the rubber pad.

[0016] In the shaping mold for cables in the above embodiment, the outer shell is integrally casted by aluminum alloy.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] (1) A plurality of shaping blocks are arranged in sequence to form shaping holes of the cable, and the air bag member is used to fasten or loosen the shaping blocks, when the outer diameter of the cable to be shaped is too large, the size of the shaping hole can be appropriately increased by releasing the gas in the air bag member, so that the shaping of the cable can be realized, and the phenomenon of being stuck in the mold can be prevented;

[0019] (2) At least two adjacent side surfaces at an included angle are arranged on each shaping block to position the adjacent shaping blocks.

[0020] (3) By setting the outer shell on the outside of the air bag piece, the outer shell is provided with an arc groove, and the air bag piece is located in the arc groove, which is used to provide support for the air bag piece. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective view of a shaping mold for a cable according to the present application;

[0022] Figure 2 is Figure 1 is a perspective view from another direction.

[0023] Figure 3 is a plan view of the air bag piece after inflation.

[0024] Figure 4 is a plan view of the air bag piece after abandonment.

[0025] In the drawings, 100 is a shaping block; 110 is a shaping hole; 120 is a side surface; 200 is an air bag piece; 210 is a support ring; 220 is a rubber pad; 300 is an outer shell; and 310 is a through hole. DETAILED DESCRIPTION

[0026] The following is a specific embodiment of the present application and further describes the technical solution of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0027] As Figures 1 to 4 shown, the shaping mold for a cable according to the present application includes an air bag piece 200 and a plurality of shaping blocks 100 that are sequentially adjacent.

[0028] Specifically, the plurality of shaping blocks 100 form a shaping hole 110 for the cable to pass through after being enclosed, the shaping hole 110 is used for shaping operation on the cable, and the two adjacent shaping blocks 100 are movably abutted.

[0029] The air bag piece 200 is wrapped on the outside of the plurality of shaping blocks 100 and is used to tighten or loosen the plurality of shaping blocks 100.

[0030] The shaping mold according to the present application is arranged between a cable pay-off reel and an extrusion device, and is used for shaping operation on the cable that has been wrapped with an aluminum-plastic composite tape, so as to ensure the roundness of the cable before extruding an outer sheath.

[0031] Before work, the inflation amount of the air bag piece 200 needs to be adjusted according to the required size of the cable after shaping, so as to adjust the spacing between the shaping blocks 100, and thus adjust the size of the shaping hole 110. Figure 1The cable is fed into the shaping die from below the position shown and is fed out from above. Under the action of the power device, the cable with the aluminum-plastic composite tape wound thereon passes through the shaping hole 110 and the cable outer surface is shaped by the extrusion between the shaping hole 110 wall and the cable outer surface.

[0032] The shaping hole 110 of the cable is formed by arranging a plurality of shaping blocks 100 in sequence. The shaping blocks 100 are fastened or loosened by the air bag member 200. When the cable diameter to be shaped is too large, the size of the shaping hole 110 can be appropriately increased by releasing the gas in the air bag member 200, so that the cable shaping can be achieved and the die jamming phenomenon can be prevented.

[0033] Preferably, the shaping block 100 is made of nylon material.

[0034] In order to round the shaping hole 110 in the middle of the shaping block 100 when the air bag member 200 is inflated to fasten the plurality of shaping blocks 100, at least two adjacent side surfaces 120 are arranged on each shaping block 100 at an angle, and the side surfaces 120 are used to position the adjacent shaping blocks 100.

[0035] The two adjacent side surfaces 120 are used to arrange a concave-convex structure on the shaping block 100 to achieve accurate positioning. For example, referring to Figure 4 In this embodiment, two shaping blocks 100 are arranged on the left and right sides: the two side surfaces 120 on the left shaping block 100 form a convex structure, and the two side surfaces 120 on the right shaping block 100 correspondingly form a concave structure. The convex structure matches the concave structure, so that when the two shaping blocks 100 are pushed close to each other by the air bag member 200, they can be accurately abutted and kept in the correct position.

[0036] In this embodiment, the two side surfaces 120 on each shaping block 100 are arranged perpendicular to each other, but the side surfaces 120 can also be designed as a non-perpendicular structure. In addition, a plurality of side surfaces 120 can be arranged on each shaping block 100 to form a sawtooth or wavy structure, which can also achieve the purpose of accurately positioning the two shaping blocks 100.

[0037] In another scheme, an outer shell 300 is also included, and the outer shell 300 is provided with a circular arc groove, and the air bag member 200 is located in the circular arc groove to provide support for the air bag member 200.

[0038] The outer shell 300 is preferably integrally cast by aluminum alloy, and of course, the outer shell 300 can also be assembled by a plurality of components. The outer shell 300 can have a cylindrical shape or other geometric structures such as a cube. The circular arc groove provided in the inner part of the outer shell 300 is in communication with both ends of the outer shell 300, which is convenient for disassembling and assembling the air bag member 200 and the plurality of shaping blocks 100 in the circular arc groove.

[0039] The air bag member 200 comprises two support rings 210 connected to the two ends of the outer shell 300, and a rubber pad 220 connected between the two support rings 210.

[0040] The rubber pad 220 constitutes the main structure of the air bag member 200, and pushes the plurality of shaping blocks 100 to approach each other when inflated; and allows the shaping blocks 100 to move away from each other under the action of the outer diameter of the cable after deflation, so as to adjust the size of the shaping hole 110. The two support rings 210 are used to fix the air bag member 200 in the outer shell 300. Preferably, the connection between the rubber pad 220 and the support ring 210 can be realized by means of gluing or hot melting.

[0041] Each of the support rings 210 extends into the outer shell 300, on the one hand, to block the two ends of the outer shell 300, and seal the air bag member 200 in the outer shell 300, so that the air bag member 200 can work in a relatively closed environment, thereby protecting the air bag member 200 from the influence of the external environment; on the other hand, this design increases the stability of the connection between the air bag member 200 and the outer shell 300, preventing the air bag member 200 from moving out of the outer shell 300 during operation.

[0042] Each of the support rings 210 extends into the outer shell 300. On the one hand, this is to block the two ends of the outer shell 300, and seal the air bag member 200 in the outer shell 300, so that the air bag member 200 can work in a relatively closed environment, thereby protecting the air bag member 200 from the influence of the external environment; on the other hand, this design increases the stability of the connection between the air bag member 200 and the outer shell 300, preventing the air bag member 200 from moving out of the outer shell 300 during operation.

[0043] In order to realize the connection between the two support rings 210 and the outer shell 300, in the present scheme, a plurality of countersunk holes are provided on each of the support rings 210, and the two ends of the outer shell 300 are provided with threaded holes corresponding to the countersunk holes one by one, and one end of the bolt passes through the countersunk hole and is connected in the threaded hole.

[0044] Generally, three countersunk holes and threaded holes can meet the needs. However, in order to ensure that the shaping hole 110 formed by the plurality of shaping blocks 100 can effectively shape the cable, considering the large friction force between the cable and the shaping block 100, the cable passing through the shaping block 100 will exert a large reaction force on the air bag member 200 during operation. In order to avoid this force causing the air bag member 200 and the outer shell 300 to separate, in the present scheme, eight countersunk holes are provided on each of the support rings 210, and these countersunk holes are arranged equidistantly on the support ring 210.

[0045] In order to realize the inflation and deflation of the air bag 200, a through hole 310 is arranged on the outer shell 300, which penetrates the side wall of the outer shell 300 and is in communication with the inside of the rubber pad 220.

[0046] One end of the through hole 310, which is directed to the outside of the outer shell 300, is connected with a gas pipe joint (not shown in the figure), which is connected with a gas source through a gas pipe. The other end of the through hole 310 is in communication with the inside of the rubber pad 220, which can be realized by arranging a short connecting pipe in the rubber pad 220 and connecting the short connecting pipe with the through hole 310 in a plug-in manner.

[0047] When the gas source inputs gas into the rubber pad 220 through the through hole 310 via the gas pipe joint, the inflation of the air bag 200 is completed; and when the gas source extracts gas from the rubber pad 220 through the through hole 310 via the gas pipe joint, the deflation of the air bag 200 is realized.

[0048] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0049] It should be noted that the descriptions such as "first", "second", "one" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications or changes in the specific embodiments described herein can occur to those skilled in the art to which the application pertains without departing from the spirit of the application, and it is understood that such modifications or changes are to be considered as within the scope of the application as defined by the appended claims.

Claims

1. A shaping mold for cables, characterized in that, include: Multiple shaping blocks are arranged in a sequentially adjacent manner, and the multiple shaping blocks together form a shaping hole for the cable to pass through. The shaping hole is used to perform shaping operations on the cable, and two adjacent shaping blocks are in contact with each other. An airbag component, which wraps around the outside of the plurality of shaping blocks and is used to fasten or loosen the plurality of shaping blocks.

2. A shaping mold for cables as described in claim 1, characterized in that, Each shaping block has at least two adjacent sides that form an angle, and these sides are used to position adjacent shaping blocks.

3. A shaping mold for cables as described in claim 2, characterized in that, The included angle is a right angle.

4. A shaping mold for cables as described in claim 1, characterized in that, There are two shaping blocks.

5. A shaping mold for cables as described in claim 1, characterized in that, It also includes an outer shell, in which an arcuate groove is provided, and the airbag component is located within the arcuate groove to provide support for the airbag component.

6. A shaping mold for cables as described in claim 5, characterized in that, The airbag component includes support rings connected to both ends of the outer shell, and a rubber pad connected between the two support rings.

7. A shaping mold for cables as described in claim 6, characterized in that, One end of each of the support rings extends into the outer casing.

8. A shaping mold for cables as described in claim 6, characterized in that, Each of the support rings is provided with multiple countersunk holes, and both ends of the outer shell are provided with threaded holes that correspond one-to-one with the countersunk holes. One end of the bolt passes through the countersunk hole and is connected in the threaded hole.

9. A shaping mold for cables as described in claim 6, characterized in that, The outer casing has a through hole that penetrates the side wall of the outer casing and communicates with the interior of the rubber pad.

10. A shaping mold for cables as described in claim 5, characterized in that, The outer shell is integrally cast from aluminum alloy.

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