Expansion jig for cold shrink tube assembly

Abstract

The utility model discloses an expansion jig for cold shrink tube assembly, and relates to the technical field of cold shrink tubes. The device comprises a working table, and a supporting assembly is fixedly installed on the top of the working table. According to the utility model, the second driving device is fixed on the guide mechanism, after the first driving device drives the guide mechanism to move to the position close to the support plate, the second driving device drives the rotary expansion assembly to move, and meanwhile, the rotary expansion assembly rotates to drive the support pipe fitting to gradually extend into the cold shrink pipe; therefore, the supporting pipe can be rotatably arranged in the cold shrink pipe in a sleeved mode, the phenomenon that the expansion progress is affected by resistance caused by friction generated by directly pushing the supporting pipe into the cold shrink pipe is reduced, after expansion is completed, the rotary expansion assembly can rotate reversely to be recycled so as to be rapidly separated from the interior of the cold shrink pipe, and the next set of sleeve rods can be rotated to the position in cooperation with the rotation guiding device. Therefore, the expansion efficiency of the cold shrink tube is improved, and the expansion process of the cold shrink tube is simpler, more convenient and more efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of cold-shrinkable tubes, and more particularly, to an expansion jig for cold-shrinkable tube assembly. Background Technique

[0002] The cold-shrinkable tube is an insulating rubber sleeve basket that is injection-molded and vulcanized using an elastic material, pre-expanded on a drawable support tube, and forms a coating using true radial pressure to achieve waterproof and moisture-proof sealing. It has excellent weather and acid-base resistance and is an ideal sealing product for communication cables, coaxial cables, and medium- and low-voltage power cables.

[0003] In the prior art, after retrieval, Chinese Patent No. CN202023281923.9 discloses an expansion machine for the assembly of a cold-shrinkable tube and a support tube, which includes an expansion die, an expansion plate, a flexible fabric sleeve, a guiding rod, and a support tube limiting member; an expansion hole is provided through the expansion plate, and the flexible fabric sleeve is used to pass through the cold-shrinkable tube, and is connected to the expansion plate and coaxially arranged with the expansion hole; the free end of the flexible fabric sleeve is connected to the guiding rod; the expansion die includes a cylinder body and a conical head; the conical head is located at one end of the cylinder body, and its conical head faces the expansion plate.

[0004] Currently, when expanding a cold-shrinkable tube, an expansion jig is usually required to sleeve a flexible and elastic support tube into the cold-shrinkable tube. However, when the existing expansion jig expands the cold-shrinkable tube, only the expansion component extends into the cold-shrinkable tube to expand it. Since the inside of the cold-shrinkable tube receives a squeezing force, it causes a reverse frictional force on the expansion component, and it is more difficult to disengage from the inside of the cold-shrinkable tube. As a result, the expansion process is relatively long and the efficiency is low.

[0005] In response to the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0006] In response to the problems in the related art, the present utility model proposes an expansion jig for cold-shrinkable tube assembly to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] To solve the above-mentioned technical problems, the present utility model is realized through the following technical solutions:

[0008] The utility model relates to an expansion jig for cold-shrinkable tube assembly, which comprises a workbench. A support assembly is fixedly installed on the top of the workbench. A first driving device is fixedly installed on the outer surface of the support assembly. An output end of the first driving device is fixedly installed with a guiding mechanism. A second driving device is fixedly installed on the outer surface of the guiding mechanism. An output end of the second driving device is fixedly installed with a rotary expansion assembly. A support plate is arranged on the outer surface of the support assembly. A guiding and rotating device is arranged on the outer surface of the support plate. A sleeve rod is fixedly installed on the outer surface of the guiding and rotating device. The number of the sleeve rods is several, and several sleeve rods are distributed in a cross shape on the outer surface of the guiding and rotating device.

[0009] Further, the support assembly includes a support bottom plate. A cross bar is fixedly installed on one side surface of the support bottom plate. A second support bottom plate is fixedly installed at one end of the cross bar. The number of the cross bars is two groups, and the guiding mechanism penetrates through and is slidably connected to the outside of the cross bar.

[0010] Further, the first driving device includes a first driving cylinder. A first telescopic rod is arranged at an output end of the first driving cylinder. The number of both the first driving cylinder and the first telescopic rod is two groups. One ends of the two groups of first telescopic rods are fixedly connected to the guiding mechanism.

[0011] Further, the guiding mechanism includes a guiding plate. A guiding sliding sleeve is fixedly installed on the outer surface of the guiding plate. The guiding sliding sleeve penetrates through and is slidably connected to the outside of the cross bar.

[0012] Further, the second driving device includes a second driving cylinder. A second telescopic rod is arranged at an output end of the second driving cylinder. An installation block is fixedly installed at one end of the second telescopic rod;

[0013] The rotary expansion assembly includes a rotary motor. An expansion tube is fixedly installed at one end of the rotary motor. The rotary motor is located inside the installation block.

[0014] Further, the guiding and rotating device includes a guiding and rotating motor. A turntable is fixedly installed at an output end of the guiding and rotating motor. The sleeve rod is located on the outer surface of the turntable.

[0015] Further, a top plate is fixedly installed on the top of the support bottom plate. A bottom support rod is fixedly installed on the outer surface of the top plate.

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

[0017] 1. In the present utility model, by fixing the second driving device on the guiding mechanism, after the first driving device drives the guiding mechanism to displace to a position close to the support plate, the second driving device drives the rotary expansion assembly to displace, and at the same time, the rotary expansion assembly rotates itself to drive the support pipe fitting to gradually extend into the cold-shrinkable pipe. In this way, the support pipe can be rotatably sleeved into the cold-shrinkable pipe, reducing the resistance caused by the friction generated during direct pushing into its interior, which affects the expansion progress. And after the expansion is completed, the rotary expansion assembly can rotate reversely and retract to quickly disengage from the interior of the cold-shrinkable pipe, and cooperate with the guiding and rotating device to rotate the next set of sleeve rods to this position, thereby improving the efficiency of expanding the cold-shrinkable pipe and making the cold-shrinkable pipe expansion process more simple and efficient.

[0018] 2. In the present utility model, by fixing the second driving cylinder on the guiding plate, it can cooperate with the first driving cylinder to provide the first-stage driving force for the guiding plate and the second driving cylinder. When the second driving cylinder gradually approaches the support plate, it cooperates with the rotary motor to drive the expansion pipe to rotate to drive the end support pipe to rotate, and then when the support pipe rotates, it extends into the cold-shrinkable pipe to expand it, reducing the influence of the resistance generated by direct expansion on the expansion process.

[0019] Of course, when implementing any product of the present utility model, it is not necessarily required 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 also be obtained based on these drawings.

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

[0022] Figure 2 is a structure schematic diagram of the support base plate of the present utility model;

[0023] Figure 3 is a structure schematic diagram of the guiding plate of the present utility model;

[0024] Figure 4 is a structure schematic diagram of the second driving cylinder of the present utility model;

[0025] Figure 5 is a structure schematic diagram of the expansion pipe of the present utility model;

[0026] Figure 6 is a structure schematic diagram of the turntable of the present utility model;

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

[0028] 1. Workbench; 2. Support assembly; 3. First driving device; 4. Guide mechanism; 5. Second driving device; 6. Rotary expansion assembly; 7. Support plate; 8. Guide rotation device; 9. Sleeve rod; 201. Support bottom plate; 202. Cross bar; 203. Second support bottom plate; 301. First driving cylinder; 302. First telescopic rod; 401. Guide plate; 402. Guide sliding sleeve; 501. Second driving cylinder; 502. Second telescopic rod; 503. Mounting block; 601. Rotary motor; 602. Expansion tube; 801. Guide rotation motor; 802. Turntable; 204. Top plate; 205. Bottom support rod. Detailed implementation manners

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0030] In the description of the present utility model, it should be understood that the terms "open hole", "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 Figure 2 、 Figure 4 As shown in the figure, the present utility model is an expansion jig for cold shrinkable tube assembly, including a workbench 1. A support assembly 2 is fixedly installed on the top of the workbench 1. A first driving device 3 is fixedly installed on the outer surface of the support assembly 2. The output end of the first driving device 3 is fixedly installed with a guide mechanism 4. A second driving device 5 is fixedly installed on the outer surface of the guide mechanism 4. The output end of the second driving device 5 is fixedly installed with a rotary expansion assembly 6. A support plate 7 is arranged on the outer surface of the support assembly 2. A guide rotation device 8 is arranged on the outer surface of the support plate 7. A sleeve rod 9 is fixedly installed on the outer surface of the guide rotation device 8. The number of the sleeve rods 9 is several, and several sleeve rods 9 are distributed in a cross shape on the outer surface of the guide rotation device 8.

[0032] When the cold shrink tube needs to be expanded, the cold shrink tube to be expanded is sleeved on the sleeve rod 9 outside the guide device 8, and the first driving device 3 is started to telescope and drive the guide mechanism 4 to move along the extension direction of the support component 2 toward the support plate 7. When the guide mechanism 4 moves, it drives the second driving device 5 to approach the sleeve rod 9 together. Since the output end of the rotary expansion component 6 is coaxially arranged with the sleeve rod 9, when it gradually approaches, the second driving device 5 is started to drive the rotary expansion component 6 to gradually move toward the sleeve rod 9. At this time, the flexible support tube to be sleeved is located at the front end of the rotary expansion component 6. At the same time, the rotary expansion component 6 is started to rotate its front end and follow the second driving device 5 to drive it to move forward and drive the support tube to gradually rotate and extend to the inside of the cold shrink tube outside the sleeve rod 9. When the support tube is almost completely located inside the cold shrink tube, the rotary expansion component 6 rotates in the opposite direction and follows the second driving device 5 to retract and reset in the opposite direction to complete the expansion operation, and the sleeve rod 9 is driven to rotate by the rotation of the guide device 8 to rotate the cold shrink tube outside the sleeve rod 9 on the adjacent side to the position to be expanded.

[0033] The utility model fixes the second driving device 5 on the guide mechanism 4. When the first driving device 3 drives the guide mechanism 4 to move to a position close to the support plate 7, the second driving device 5 drives the rotary expansion component 6 to move. At the same time, the rotary expansion component 6 itself rotates to drive the supporting pipe to gradually extend into the cold shrink tube. In this way, the supporting tube can be rotatably sleeved into the cold shrink tube, reducing the resistance caused by the friction generated by directly pushing it into the interior that affects the expansion progress. When the expansion is completed, the rotary expansion component 6 can be reversely rotated and recovered to quickly detach from the interior of the cold shrink tube, and cooperate with the guide device 8 to rotate the next set of sleeve rods 9 to this position, thereby improving the efficiency of the expansion of the cold shrink tube, making the expansion process of the cold shrink tube more simple and efficient.

[0034] In one embodiment, for the above-mentioned support assembly 2, the support assembly 2 includes a support base plate 201, a cross bar 202 is fixedly installed on one side of the support base plate 201, a second support base plate 203 is fixedly installed on one end of the cross bar 202, and the number of the cross bars 202 is two groups, and the guide mechanism 4 passes through and is slidably connected to the outside of the cross bar 202.

[0035] By supporting the cross bar 202 between the support base plate 201 and the second support base plate 203, it is convenient to provide a lateral displacement limiting function for the guide mechanism 4, and at the same time provide a positioning support function for the support plate 7, so that the guide mechanism 4 always maintains the same support position as the support plate 7 during displacement, and the cooperation of the two sets of cross bars 202 can provide a stable guiding and supporting effect for the guide mechanism 4 during displacement.

[0036] In one embodiment, for the above-mentioned first driving device 3, the first driving device 3 includes a first driving cylinder 301, and a first telescopic rod 302 is arranged at the output end of the first driving cylinder 301. The number of both the first driving cylinder 301 and the first telescopic rod 302 is two groups. One ends of the two groups of first telescopic rods 302 are fixedly connected to the guiding mechanism 4.

[0037] The two groups of first driving cylinders 301 are both fixed on the support base plate 201. After the first driving cylinder 301 is started, it drives the two groups of first telescopic rods 302 to expand and contract simultaneously to push the guiding mechanism 4 to move along the outside of the cross bar 202, so as to provide a displacement driving force for the guiding mechanism 4.

[0038] In one embodiment, for the above-mentioned guiding mechanism 4, the guiding mechanism 4 includes a guiding plate 401, and a guiding sliding sleeve 402 is fixedly installed on the outer surface of the guiding plate 401. The guiding sliding sleeve 402 penetrates and is slidably connected to the outside of the cross bar 202.

[0039] One end of the first telescopic rod 302 is fixedly connected to the outside of the guiding plate 401. When the first telescopic rod 302 expands and contracts, it pushes the guiding plate 401 to displace, so that the guiding sliding sleeve 402 slides along the outside of the cross bar 202, and at the same time, the second driving device 5 gradually approaches the end face of the support plate 7.

[0040] In one embodiment, for the above-mentioned second driving device 5, the second driving device 5 includes a second driving cylinder 501, and a second telescopic rod 502 is arranged at the output end of the second driving cylinder 501. One end of the second telescopic rod 502 is fixedly installed with a mounting block 503;

[0041] The rotary expansion assembly 6 includes a rotary motor 601, and an expansion tube 602 is fixedly installed at one end of the rotary motor 601. The rotary motor 601 is located inside the mounting block 503.

[0042] After the guiding plate 401 drives the second driving cylinder 501 to move close to the support plate 7, its displacement stops. After the second driving cylinder 501 is started, it drives the second telescopic rod 502 to expand and contract to push the mounting block 503 and the rotary motor 601 to approach the sleeve rod 9. At the same time, the rotary motor 601 drives the expansion tube 602 to rotate, and the expansion tube 602 is conical to drive the support tube to rotate and extend into the cold shrinkable tube.

[0043] By fixing the second driving cylinder 501 on the guide plate 401, the first driving cylinder 301 can cooperate with the guide plate 401 and the second driving cylinder 501 to provide the first-stage driving force. When the second driving cylinder 501 gradually approaches the support plate 7, the rotation motor 601 is cooperated to drive the expansion tube 602 to rotate so as to drive the end support tube to rotate. Furthermore, when the support tube rotates, it extends into the inner part of the cold-shrinkable tube to expand it, reducing the influence of the resistance generated by direct expansion on the expansion process.

[0044] In one embodiment, for the above-mentioned guiding and rotating device 8, the guiding and rotating device 8 includes a guiding and rotating motor 801, and a turntable 802 is fixedly installed at the output end of the guiding and rotating motor 801. The sleeve rod 9 is located on the outer surface of the turntable 802.

[0045] After the guiding and rotating motor 801 is started, it drives the turntable 802 to rotate, so that the cold-shrinkable tube outside the expanded sleeve rod 9 is rotated to the outside, and the cold-shrinkable tube outside the adjacent sleeve rod 9 that has not been expanded is rotated to the coaxial position with the expansion tube 602, facilitating continuous expansion operation of the cold-shrinkable tube.

[0046] In one embodiment, for the above-mentioned support bottom plate 201, a top plate 204 is fixedly installed on the top of the support bottom plate 201, and a bottom support rod 205 is fixedly installed on the outer surface of the top plate 204.

[0047] By fixing the bottom support rod 205 on the top plate 204, the bottom of the second driving cylinder 501 is close to the top of the bottom support rod 205. When the guide plate 401 drives the second driving cylinder 501 to displace, its bottom can displace along the upper part of the bottom support rod 205, thereby providing an auxiliary support effect for the bottom of the second driving cylinder 501 and improving its stability during displacement.

[0048] Through the above technical solutions: 1. By fixing the second driving device 5 on the guiding mechanism 4, after the first driving device 3 drives the guiding mechanism 4 to move to a position close to the support plate 7, the second driving device 5 drives the rotary expansion assembly 6 to move. At the same time, the rotary expansion assembly 6 rotates itself to drive the support pipe to gradually extend into the cold shrinkable pipe. In this way, the support pipe can be rotatably sleeved into the cold shrinkable pipe, reducing the resistance caused by friction generated by directly pushing it into the interior, which affects the expansion progress. And after the expansion is completed, the rotary expansion assembly 6 can rotate in the reverse direction to retract, so as to quickly disengage from the interior of the cold shrinkable pipe, and cooperate with the guiding and rotating device 8 to rotate the next set of sleeve rods 9 to this position, thereby improving the efficiency of expanding the cold shrinkable pipe and making the cold shrinkable pipe expansion process more simple and efficient; 2. By fixing the second driving cylinder 501 on the guiding plate 401, it can cooperate with the first driving cylinder 301 to provide the first-stage driving force for the guiding plate 401 and the second driving cylinder 501. When the second driving cylinder 501 gradually approaches the support plate 7, it cooperates with the rotary motor 601 to drive the expansion pipe 602 to rotate to drive the end support pipe to rotate, so that when the support pipe rotates, it extends into the cold shrinkable pipe to expand it, reducing the influence of the resistance generated by direct expansion on the expansion process.

[0049] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean 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.

[0050] The preferred embodiments of the utility model disclosed above are only used to help illustrate the utility model. The preferred embodiments do not describe all the details in detail, 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. The embodiments selected and specifically described in this specification are for better explaining the principle and practical application of the utility model, so that those skilled in the relevant technical field can understand and utilize the utility model well. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An expansion jig for assembling a cold shrink tube, comprising a workbench (1), characterized in that: A support assembly (2) is fixedly mounted on the top of the workbench (1); a first drive device (3) is fixedly mounted on the outer surface of the support assembly (2); a guide mechanism (4) is fixedly mounted on the output end of the first drive device (3); a second drive device (5) is fixedly mounted on the outer surface of the guide mechanism (4); a rotation expansion assembly (6) is fixedly mounted on the output end of the second drive device (5); a support plate (7) is arranged on the outer surface of the support assembly (2); a guide device (8) is arranged on the outer surface of the support plate (7); a sleeve rod (9) is fixedly mounted on the outer surface of the guide device (8); a plurality of sleeve rods (9) are provided, and the plurality of sleeve rods (9) are distributed in a cross shape on the outer surface of the guide device (8).

2. The expansion jig for cold shrink tube assembly according to claim 1, characterized in that: The support assembly (2) comprises a support base plate (201), a cross bar (202) is fixedly mounted on one side of the support base plate (201), a second support base plate (203) is fixedly mounted on one end of the cross bar (202), and the number of the cross bars (202) is two. The guide mechanism (4) passes through and is slidably connected to the outside of the cross bars (202).

3. The expansion jig for cold shrink tube assembly according to claim 1, characterized in that: The first driving device (3) comprises a first driving cylinder (301), the output end of the first driving cylinder (301) being provided with a first telescopic rod (302), the first driving cylinder (301) and the first telescopic rod (302) being provided in two groups, one end of the two groups of the first telescopic rods (302) being fixedly connected to the guide mechanism (4).

4. The expansion jig for cold shrink tube assembly according to claim 2, characterized in that: The guide mechanism (4) comprises a guide plate (401), a guide sleeve (402) being fixedly mounted on the outer surface of the guide plate (401), and the guide sleeve (402) passes through and is slidably connected to the outside of the crossbar (202).

5. The expansion jig for cold shrink tube assembly according to claim 1, characterized in that: The second driving device (5) comprises a second driving cylinder (501), the output end of the second driving cylinder (501) is provided with a second telescopic rod (502), and one end of the second telescopic rod (502) is fixedly mounted with a mounting block (503); The rotary expansion assembly (6) comprises a rotary motor (601), an expansion tube (602) being fixedly mounted on one end of the rotary motor (601), and the rotary motor (601) is located inside the mounting block (503).

6. The expansion jig for cold shrink tube assembly according to claim 1, characterized in that: The rotation guide device (8) comprises a rotation guide motor (801), a rotating disk (802) is fixedly mounted on the output end of the rotation guide motor (801), and the sleeve rod (9) is located on the outer surface of the rotating disk (802).

7. An expansion jig for cold shrink tube assembly according to claim 2, characterized in that: A top plate (204) is fixedly mounted on the top of the supporting bottom plate (201), and a bottom support rod (205) is fixedly mounted on the outer surface of the top plate (204).

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