Extrusion die for cold shrink pipe

Abstract

The utility model discloses an extrusion die for a cold shrink tube, and relates to the technical field of extrusion dies. The die comprises a die body, a telescopic assembly is arranged in the die body, a driving assembly is arranged in the die body, a transmission assembly is fixedly installed at the telescopic end of the driving assembly, an expansion assembly is arranged in the die body, and one side of the expansion assembly is fixedly connected with one side of the transmission assembly. According to the utility model, the spiral strip is sleeved on the outer surface of the telescopic assembly, then the cold shrink tube is sleeved on the outer surface of the expansion assembly, the steps are repeated, so that the expansion assembly can drive the cold shrink tube to expand, and then the telescopic assembly is started to push the spiral strip sleeved on the outer surface of the telescopic assembly to move and enable the spiral strip to enter the cold shrink tube. According to the extrusion die for the cold shrink pipe, the cold shrink pipe and the spiral strip are sleeved, the process is simple and convenient, labor is saved, and therefore the machining efficiency of the extrusion die for the cold shrink pipe on the cold shrink pipe is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of extrusion dies, and more particularly, to an extrusion die for a cold-shrinkable tube. Background Art

[0002] Cold-shrinkable cable accessories are components formed by injecting and vulcanizing elastomer materials in a factory, and then expanding the diameter and lining with plastic spiral supports to form various cable accessory parts. During on-site installation, these pre-expanded sleeves are sleeved on the processed cable ends or joints, and the internal plastic spiral strips are pulled out and pressed on the cable insulation to form cable accessories.

[0003] After the cold-shrinkable tube is produced, a plastic spiral strip is required to support the cold-shrinkable tube inside it. In the prior art, generally, the plastic spiral strip is sleeved on the outer surface of the extrusion die, and then the cold-shrinkable tube is sleeved on one end of the extrusion die, so that the extrusion die expands the cold-shrinkable tube by extrusion and drives the plastic spiral strip into the inside of the cold-shrinkable tube. However, the processing process is relatively cumbersome and laborious, reducing the processing efficiency of the cold-shrinkable tube.

[0004] In view of the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0005] In view of the problems in the related art, the utility model provides an extrusion die for a cold-shrinkable tube to overcome the above-mentioned technical problems existing in the prior related art.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model provides an extrusion die for a cold-shrinkable tube, which includes a die body. A telescopic component is arranged inside the die body, a driving component is arranged inside the die body, a transmission component is fixedly installed at the telescopic end of the driving component, an expansion component is arranged inside the die body, one side of the expansion component is fixedly connected to one side of the transmission component, a spiral strip is sleeved on the outer surface of the telescopic component, and a cold-shrinkable tube is sleeved on the outer surface of the expansion component.

[0008] Further, the telescopic component includes a motor and a telescopic groove. One side of the motor is fixedly installed on one side of the die body, and the output end of the motor is fixedly connected to a threaded rod;

[0009] The telescopic groove is opened inside the die body, a telescopic head is slidably arranged inside the telescopic groove, and the inside of the telescopic head is threadedly connected to the threaded surface of the threaded rod.

[0010] Further, the telescopic component further includes a limiting groove which is opened on the inner wall of the telescopic groove. A limiting block is slidably arranged inside the limiting groove. One side of the limiting block is fixedly connected with a connecting block, and one side of the connecting block is fixedly connected with one end of the telescopic head.

[0011] Further, the driving component includes an electric push rod. One side of the electric push rod is fixedly installed inside the mold body. The telescopic end of the electric push rod is fixedly connected with a connecting plate, and one side of the connecting plate is fixedly connected with one side of the transmission component.

[0012] Further, the transmission component includes a toothed plate. One side of the toothed plate is fixedly installed with one side of the connecting plate. A gear is meshed on the surface of the toothed plate, and one side of the gear is fixedly connected with one side of the expansion component.

[0013] Further, the expansion component includes a support shaft. Both ends of the support shaft are fixedly connected with the inside of the mold body. A rotating plate is rotatably arranged on the outer surface of the support shaft. One side of the rotating plate is fixedly connected with one side of the gear;

[0014] One side of the rotating plate is fixedly connected with an expansion rod, and the outer surface of the expansion rod is sleeved with the inside of the cold shrinkable tube.

[0015] Further, a T-shaped groove is opened inside the mold body. A T-shaped block is slidably arranged inside the T-shaped groove. One side of the T-shaped block is fixedly connected with one side of the toothed plate.

[0016] The utility model has the following beneficial effects:

[0017] 1. By sleeving the spiral strip on the outer surface of the telescopic component, and then sleeving the cold shrinkable tube on the outer surface of the expansion component, and repeating the above steps, the expansion component can drive the cold shrinkable tube to expand. Then, the telescopic component is started to push the spiral strip sleeved on its outer surface to move and enter the inside of the cold shrinkable tube, completing the sleeving between the cold shrinkable tube and the spiral strip. The process is relatively simple and labor-saving, thereby improving the processing efficiency of the cold shrinkable tube by the extrusion mold for the cold shrinkable tube.

[0018] 2. When the toothed plate drives the gear to rotate, it can drive the rotating plate fixedly connected to one side of it to rotate. Since the inside of the rotating plate is rotatably arranged on the outer surface of the support shaft, the rotating plate can perform a circular motion with the support shaft as the center. When the rotating plate rotates, it can drive the expansion rod fixedly connected to one side of it to perform a circular motion. Then, when the cold shrinkable tube is sleeved on the outer surface of the expansion rod, with the expansion of the expansion rod, the inner wall of the cold shrinkable tube can be expanded, which is relatively convenient.

[0019] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the present utility model from the rear view perspective;

[0023] Figure 3 is a schematic sectional structure diagram of the present utility model from the top view perspective;

[0024] Figure 4 is of the present utility model Figure 3 is an enlarged schematic diagram of the partial structure at A therein;

[0025] Figure 5 is a schematic sectional structure diagram of the present utility model from the left view perspective;

[0026] Figure 6 is of the present utility model Figure 5 is an enlarged schematic diagram of the partial structure at B therein.

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Mold body; 2. Telescopic assembly; 201. Motor; 202. Telescopic groove; 203. Threaded rod; 204. Telescopic head; 205. Limit groove; 206. Limit block; 207. Connecting block; 3. Driving assembly; 301. Electric push rod; 302. Connecting plate; 4. Transmission assembly; 401. Rack; 402. Gear; 5. Expansion assembly; 501. Support shaft; 502. Rotating plate; 503. Expansion rod; 6. Spiral strip; 7. Cold shrinkable tube; 8. T-shaped groove; 9. T-shaped block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some, rather than all, of the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the utility model belong to the scope of protection of the utility model.

[0030] In the description of the present utility model, it should be understood that terms such as "opening", "upper", "lower", "top", "middle", "inner", etc. indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the utility model.

[0031] Please refer to Figures 1-6 As shown, the present utility model is an extrusion die for a cold-shrinkable tube, including a die body 1. A telescopic component 2 is arranged inside the die body 1. A driving component 3 is arranged inside the die body 1. A transmission component 4 is fixedly installed at the telescopic end of the driving component 3. An expansion component 5 is arranged inside the die body 1. One side of the expansion component 5 is fixedly connected to one side of the transmission component 4. A spiral bar 6 is sleeved on the outer surface of the telescopic component 2. A cold-shrinkable tube 7 is sleeved on the outer surface of the expansion component 5.

[0032] During use, by starting the driving component 3 to drive the transmission component 4 fixedly installed at its telescopic end to operate, when the transmission component 4 operates, it can drive the expansion component 5 fixedly connected to its one side to perform a circular motion, thereby completing the expansion state. Then, the spiral bar 6 is sleeved on the outer surface of the telescopic component 2. Then, start the driving component 3 again to drive the transmission component 4 to operate in the reverse direction, so that it can drive the expansion component 5 to close. Then, the cold-shrinkable tube 7 is sleeved on the outer surface of the expansion component 5. Repeat the above steps to enable the expansion component 5 to drive the cold-shrinkable tube 7 to expand. Then, start the telescopic component 2 to push the spiral bar 6 sleeved on its outer surface to move and make it enter the inside of the cold-shrinkable tube 7, completing the sleeving setting between the cold-shrinkable tube 7 and the spiral bar 6. Then, it can be taken off. Then, repeat the above steps to realize the sleeving installation between the cold-shrinkable tube 7 and the spiral bar 6, which is relatively convenient.

[0033] The present utility model sleeved the spiral bar 6 on the outer surface of the telescopic component 2, and then sleeved the cold-shrinkable tube 7 on the outer surface of the expansion component 5. Repeat the above steps to enable the expansion component 5 to drive the cold-shrinkable tube 7 to expand. Then, start the telescopic component 2 to push the spiral bar 6 sleeved on its outer surface to move and make it enter the inside of the cold-shrinkable tube 7, completing the sleeving setting between the cold-shrinkable tube 7 and the spiral bar 6. The process is relatively simple and labor-saving, thereby improving the processing efficiency of the extrusion die for the cold-shrinkable tube for the cold-shrinkable tube 7.

[0034] In one embodiment, for the above-mentioned telescopic component 2, the telescopic component 2 includes a motor 201 and a telescopic groove 202. One side of the motor 201 is fixedly installed on one side of the die body 1. The output end of the motor 201 is fixedly connected to a threaded rod 203;

[0035] The telescopic groove 202 is opened inside the mold body 1. A telescopic head 204 is slidably arranged inside the telescopic groove 202, and the inner part of the telescopic head 204 is threadedly connected to the threaded surface of the threaded rod 203.

[0036] By starting the motor 201 to drive the threaded rod 203 fixedly connected to its output end to rotate, when the threaded rod 203 rotates, it can drive the telescopic head 204 threadedly connected to its threaded surface to move. Since the outer surface of the telescopic head 204 is sleeved inside the spiral strip 6, when the telescopic head 204 moves, it can drive the spiral strip 6 to move, thus facilitating the sleeved assembly between the spiral strip 6 and the cold shrinkable tube 7.

[0037] In one embodiment, for the above-mentioned telescopic assembly 2, the telescopic assembly 2 further includes a limiting groove 205. The limiting groove 205 is opened on the inner wall of the telescopic groove 202. A limiting block 206 is slidably arranged inside the limiting groove 205. One side of the limiting block 206 is fixedly connected to a connecting block 207, and one side of the connecting block 207 is fixedly connected to one end of the telescopic head 204.

[0038] When the telescopic head 204 rotates as the threaded rod 203 rotates, it can drive the connecting block 207 fixedly connected to one end thereof to move. When the connecting block 207 moves, it can drive the limiting block 206 fixedly connected to its outer surface to move. Since the outer surface of the limiting block 206 is slidably arranged on the inner wall of the limiting groove 205, when the limiting block 206 moves, it can slide along the direction of the limiting groove 205, thereby cooperating with the connecting block 207 to limit the moving direction of the telescopic head 204 and improving the stability of the telescopic head 204 during the moving process.

[0039] In one embodiment, for the above-mentioned driving assembly 3, the driving assembly 3 includes an electric push rod 301. One side of the electric push rod 301 is fixedly installed inside the mold body 1. The telescopic end of the electric push rod 301 is fixedly connected to a connecting plate 302, and one side of the connecting plate 302 is fixedly connected to one side of the transmission assembly 4.

[0040] By starting the electric push rod 301 to drive the connecting plate 302 fixedly connected to its telescopic end to move, when the connecting plate 302 moves, it can drive the transmission assembly 4 fixedly installed on one side thereof to operate, thereby providing stable power for the transmission assembly 4.

[0041] In one embodiment, for the above-mentioned transmission assembly 4, the transmission assembly 4 includes a toothed plate 401. One side of the toothed plate 401 is fixedly installed with one side of the connecting plate 302. A gear 402 is meshed on the surface of the toothed plate 401. One side of the gear 402 is fixedly connected to one side of the expansion assembly 5.

[0042] By starting the electric push rod 301 to drive the connecting plate 302 fixedly connected to its telescopic end to move. When the connecting plate 302 moves, it can drive the toothed plate 401 fixedly installed on one side of it to move. When the toothed plate 401 moves, it can drive the gear 402 meshed on its surface to rotate. Since there are two sets of gears 402 and they are symmetrically arranged, when the toothed plate 401 moves, it can drive the gears 402 meshed on its surface to rotate relatively. When the gear 402 rotates, it can drive the expansion assembly 5 fixedly connected to one side of it to perform a circular motion, thus facilitating its expansion or closing action.

[0043] In one embodiment, for the above-mentioned expansion assembly 5, the expansion assembly 5 includes a support shaft 501. Both ends of the support shaft 501 are fixedly connected to the inside of the mold body 1. A rotating plate 502 is rotatably arranged on the outer surface of the support shaft 501. One side of the rotating plate 502 is fixedly connected to one side of the gear 402;

[0044] One side of the rotating plate 502 is fixedly connected with an expansion rod 503. The outer surface of the expansion rod 503 is sleeved with the inside of the cold shrinkable tube 7.

[0045] When the gear 402 rotates as the toothed plate 401 moves, it can drive the rotating plate 502 fixedly connected to one side of it to rotate. Since the inside of the rotating plate 502 is rotatably arranged on the outer surface of the support shaft 501, the rotating plate 502 can perform a circular motion with the support shaft 501 as the center. When the rotating plate 502 rotates, it can drive the expansion rod 503 fixedly connected to one side of it to perform a circular motion. Then, when the cold shrinkable tube 7 is sleeved on the outer surface of the expansion rod 503, as the expansion rod 503 expands, it can expand the inner wall of the cold shrinkable tube 7, which is relatively convenient.

[0046] In one embodiment, for the above-mentioned mold body 1, a T-shaped groove 8 is opened inside the mold body 1. A T-shaped block 9 is slidably arranged inside the T-shaped groove 8. One side of the T-shaped block 9 is fixedly connected to one side of the toothed plate 401.

[0047] When the toothed plate 401 moves, it can drive the T-shaped block 9 fixedly connected to one side thereof to move. Since the outer surface of the T-shaped block 9 is slidably arranged inside the T-shaped groove 8, when the T-shaped block 9 moves, it can move along the direction of the T-shaped groove 8, thereby enabling it to support the toothed plate 401, thus improving the stability of the toothed plate 401 during the movement process.

[0048] Through the above technical solution: 1. By sleeving the spiral bar 6 on the outer surface of the telescopic component 2, and then sleeving the cold-shrinkable tube 7 on the outer surface of the expanding component 5, repeating the above steps enables the expanding component 5 to drive the cold-shrinkable tube 7 to expand. Then, start the telescopic component 2 to push the spiral bar 6 sleeved on its outer surface to move and make it enter the inside of the cold-shrinkable tube 7, completing the sleeving setting between the cold-shrinkable tube 7 and the spiral bar 6. The process is relatively simple and labor-saving, thus improving the processing efficiency of the cold-shrinkable tube 7 by the extrusion die for the cold-shrinkable tube.

[0049] 2. When the toothed plate 401 drives the gear 402 to rotate, it can drive the rotating plate 502 fixedly connected to one side thereof to rotate. Since the inside of the rotating plate 502 is rotatably arranged on the outer surface of the support shaft 501, the rotating plate 502 can perform a circular motion with the support shaft 501 as the center. When the rotating plate 502 rotates, it can drive the expansion rod 503 fixedly connected to one side thereof to perform a circular motion. Then, when the cold-shrinkable tube 7 is sleeved on the outer surface of the expansion rod 503, as the expansion rod 503 expands, it can expand the inner wall of the cold-shrinkable tube 7, which is relatively convenient.

[0050] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0051] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not elaborate on all the details, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the utility model, so that those skilled in the relevant technical field can well understand and utilize the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An extrusion die for a cold shrink tube, comprising a die body (1), characterized in that: A telescopic component (2) is arranged inside the mold body (1), a driving component (3) is arranged inside the mold body (1), a transmission component (4) is fixedly mounted on the telescopic end of the driving component (3), an expansion component (5) is arranged inside the mold body (1), one side of the expansion component (5) is fixedly connected to one side of the transmission component (4), a spiral strip (6) is sleeved on the outer surface of the telescopic component (2), and a cold shrink tube (7) is sleeved on the outer surface of the expansion component (5).

2. The extrusion die for a cold shrink tube according to claim 1, characterized in that: The telescopic assembly (2) comprises a motor (201) and a telescopic slot (202); one side of the motor (201) is fixedly mounted to one side of the mold body (1); and the output end of the motor (201) is fixedly connected to a threaded rod (203); The telescopic groove (202) is provided inside the mold body (1); a telescopic head (204) is slidably provided inside the telescopic groove (202); the inside of the telescopic head (204) is threadedly connected to the threaded surface of the threaded rod (203).

3. The extrusion die for a cold shrink tube according to claim 2, characterized in that: The telescopic assembly (2) further comprises a limit groove (205), wherein the limit groove (205) is provided on the inner wall of the telescopic groove (202), a limit block (206) is slidably arranged inside the limit groove (205), one side of the limit block (206) is fixedly connected to a connecting block (207), and one side of the connecting block (207) is fixedly connected to one end of the telescopic head (204).

4. The extrusion die for a cold shrink tube according to claim 1, characterized in that: The driving assembly (3) comprises an electric push rod (301), one side of the electric push rod (301) is fixedly mounted inside the mold body (1), the telescopic end of the electric push rod (301) is fixedly connected to a connecting plate (302), and one side of the connecting plate (302) is fixedly connected to one side of the transmission assembly (4).

5. The extrusion die for a cold shrink tube according to claim 4, characterized in that: The transmission assembly (4) comprises a toothed plate (401), one side of the toothed plate (401) being fixedly mounted to one side of the connecting plate (302), a gear (402) being meshedly provided on the surface of the toothed plate (401), and one side of the gear (402) being fixedly connected to one side of the expansion assembly (5).

6. An extrusion die for a cold shrink tube according to claim 5, characterized in that: The expansion assembly (5) comprises a support shaft (501), both ends of the support shaft (501) are fixedly connected to the inside of the mold body (1), a rotating plate (502) is rotatably provided on the outer surface of the support shaft (501), and one side of the rotating plate (502) is fixedly connected to one side of the gear (402); An expansion rod (503) is fixedly connected to one side of the rotating plate (502), and the outer surface of the expansion rod (503) is sleeved with the inside of the cold shrink tube (7).

7. The extrusion die for a cold shrink tube according to claim 5, characterized in that: A T-shaped slot (8) is provided inside the mold body (1), a T-shaped block (9) is slidably provided inside the T-shaped slot (8), and one side of the T-shaped block (9) is fixedly connected to one side of the tooth plate (401).

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