Heat shrink sleeve expansion noise reduction device

CN224689629UActive Publication Date: 2026-08-28CHANGZHOU WOER HEAT SHRINKABLE MATERIAL CO LTD
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Patent Information

Application Number
CN202522096607.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-28
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

当扩张板进行开合动作时,其机械结构会产生较大的摩擦和振动,从而导致明显的噪声问题

Benefits of technology

1.本申请中启动第一伺服电机后,该电机带动驱动丝杆旋转;驱动丝杆旋转带动丝杆螺母做直线运动;丝杆螺母的运动进而带动滑套移动;滑套移动时,驱动杆推动活动杆展开;活动杆展开带动扩张板展开,以此实现对热缩套的扩张。

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Abstract

The utility model discloses heat shrinkable sleeve expansion noise reduction equipment relates to heat shrinkable sleeve processing technical field, including base, is set up on the base and has the discharge port, the base one side fixed mounting has the equipment shell, the base other side fixed mounting has the vertical board, install expansion mechanism on the equipment shell, expansion mechanism includes the first servo motor fixed mounting in the equipment shell and the positioning pipe fixed mounting in one side of equipment shell, fixed mounting has the collar on the positioning pipe, the slide sleeve is slidably installed on the positioning pipe, the movable rod is rotatably installed on the slide sleeve, the movable rod end rotatably installed has the expansion board, is connected with the drive link between the slide sleeve and movable rod, install the protection mechanism between the equipment shell and vertical board, this heat shrinkable sleeve expansion noise reduction equipment, and expansion mechanism can expand heat shrinkable sleeve, and the protection mechanism can reduce the generation of noise.
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Description

Technical Field

[0001] This utility model relates to the field of heat shrink tubing processing technology, specifically to a heat shrink tubing expansion and noise reduction device. Background Technology

[0002] Heat shrink tubing is a tubular product made of thermoplastic material. Its unique feature is that it undergoes significant radial shrinkage upon heating, thus tightly wrapping around the surface of an object. To use it, simply select a tubing with a diameter slightly larger than the object being covered, insert it, and then heat it evenly with a heat gun, torch, or other heat source. The tubing will quickly shrink and conform tightly to the object's contours, forming a strong, insulating, and sealed protective layer.

[0003] In the prior art, the patent announcement number CN221678028U discloses a heat shrink tubing softening and expanding device, which includes a machine body, a heating device fixedly connected to one end of the machine body, a cylinder fixedly connected inside the heating device, four sets of expansion plates slidably connected to one end of the cylinder, a cylinder shaft fixedly connected to one end of the cylinder, a fixing sleeve fixedly connected to the outer wall of the cylinder shaft, a connecting rod rotatably connected to the bottom of the fixing sleeve, and the other end of the connecting rod rotatably connected to the expansion plate.

[0004] The opening and closing motion of the expansion plate effectively expands heat shrink tubing. However, this opening and closing action generates significant friction and vibration in its mechanical structure, resulting in noticeable noise. This noise not only affects the comfort of the working environment but may also damage the hearing of operators. Therefore, appropriate noise reduction measures must be taken during heat shrink tubing expansion operations. This paper proposes a noise reduction device for heat shrink tubing expansion. Summary of the Invention

[0005] The purpose of this invention is to provide a heat shrink tubing expansion and noise reduction device to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat shrink tubing expansion and noise reduction device, comprising a base, a discharge port on the base, a device housing fixedly installed on one side of the base, and a vertical plate fixedly installed on the other side of the base. An expansion mechanism is installed on the device housing, the expansion mechanism comprising a first servo motor fixedly installed inside the device housing and a positioning tube fixedly installed on one side of the device housing, a retaining sleeve fixedly installed on the positioning tube, a sliding sleeve slidably installed on the positioning tube, a movable rod rotatably installed on the sliding sleeve, an expansion plate rotatably installed at the end of the movable rod, a drive rod connecting the sliding sleeve and the movable rod, and a protective mechanism installed between the device housing and the vertical plate.

[0007] Preferably, an electric heating wire is installed on the expansion plate, a drive screw is rotatably installed inside the positioning tube, and the threads at the two ends of the drive screw are in opposite directions. A screw nut is threaded onto the drive screw and is fixedly installed inside the sliding sleeve.

[0008] Preferably, a limiting groove is provided on the positioning tube, and the sliding sleeve is slidably installed on the positioning tube through the limiting groove.

[0009] Preferably, one end of the movable rod is rotatably mounted on the sleeve, and the other end of the movable rod is rotatably mounted on the expansion plate; one end of the drive rod is rotatably mounted on the sliding sleeve, and the other end of the drive rod is rotatably mounted on the movable rod.

[0010] Preferably, the protective mechanism includes a guide rod fixedly installed between the equipment housing and the upright plate, and a threaded screw rotatably installed between the equipment housing and the upright plate. A second servo motor is fixedly installed inside the equipment housing. A ring seat is slidably installed on the guide rod and threadedly connected to the threaded screw. A soundproof cover is fixedly installed inside the ring seat. A rubber ring is fixedly installed at the end of the soundproof cover. An elastic paddle is fixedly installed inside the soundproof cover.

[0011] Preferably, the output end of the second servo motor is provided with a coupling, and one end of the threaded screw is fixedly installed on the output end of the second servo motor through the coupling.

[0012] Preferably, the ring seat has a sliding hole, and the ring seat is slidably mounted on the guide rod through the sliding hole.

[0013] Preferably, the soundproof cover is slidably mounted on one side of the equipment housing along with the ring seat, and the end of the elastic lever is slightly higher than the expansion plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. In this application, after the first servo motor is started, the motor drives the drive screw to rotate; the rotation of the drive screw drives the screw nut to move linearly; the movement of the screw nut in turn drives the sliding sleeve to move; when the sliding sleeve moves, the drive rod pushes the movable rod to unfold; the unfolding of the movable rod drives the expansion plate to unfold, thereby realizing the expansion of the heat shrink sleeve.

[0015] 2. After the second servo motor of this application is started, it drives the ring seat to move back and forth. When the ring seat moves forward, the soundproof cover will cover the expansion mechanism to reduce noise; when the ring seat moves backward, the elastic lever will push the expanded heat shrink tubing to detach it from the expansion plate. The heat shrink tubing detached from the expansion plate will fall through the unloading port, thereby realizing automatic unloading. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the expansion mechanism of this utility model; Figure 4 This is a partial schematic diagram of the expansion mechanism of this utility model; Figure 5 This is a schematic diagram of the protective mechanism of this utility model.

[0017] The markings in the diagram are: 1. Base; 2. Discharge port; 3. Equipment casing; 4. Vertical plate; 5. Expansion mechanism; 501. Positioning tube; 502. First servo motor; 503. Expansion plate; 504. Sliding sleeve; 505. Compression sleeve; 506. Heating wire; 507. Drive screw; 508. Drive rod; 509. Movable rod; 510. Screw nut; 6. Protective mechanism; 601. Second servo motor; 602. Threaded screw; 603. Elastic lever; 604. Soundproof cover; 605. Ring seat; 606. Guide rod; 607. Rubber ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a heat shrink tubing expansion and noise reduction device, including a base 1, a discharge port 2 on the base 1, a device housing 3 fixedly installed on one side of the base 1, a vertical plate 4 fixedly installed on the other side of the base 1, an expansion mechanism 5 installed on the device housing 3, and a protective mechanism 6 installed between the device housing 3 and the vertical plate 4.

[0020] Specifically, by using the equipment housing 3 in conjunction with the upright plate 4, the expansion mechanism 5 and the protective mechanism 6 can be installed above the base 1. The expansion mechanism 5 can expand the heat shrink sleeve, and the protective mechanism 6 can reduce noise generation.

[0021] like Figure 2 , Figure 3 and Figure 4As shown, the expansion mechanism 5 includes a first servo motor 502 fixedly installed inside the equipment housing 3 and a positioning tube 501 fixedly installed on one side of the equipment housing 3. A retaining sleeve 505 is fixedly installed on the positioning tube 501, a sliding sleeve 504 is slidably installed on the positioning tube 501, a movable rod 509 is rotatably installed on the sliding sleeve 504, an expansion plate 503 is rotatably installed at the end of the movable rod 509, a drive rod 508 is connected between the sliding sleeve 504 and the movable rod 509, an electric heating wire 506 is installed on the expansion plate 503, a drive screw 507 is rotatably installed inside the positioning tube 501, and the threads at the two ends of the drive screw 507 are in opposite directions. A screw nut 510 is threaded onto the drive screw 507, and the screw nut 510 is fixedly installed inside the sliding sleeve 504.

[0022] Specifically, the heating wire 506 is controlled by a temperature control switch to heat the expansion plate 503. When the first servo motor 502 starts, its output shaft drives the drive screw 507 to rotate via a coupling. During rotation, the precision-machined threads of the drive screw 507 push the mating screw nut 510 to move linearly along the screw axis. As the screw nut 510 moves, the rigidly connected sliding sleeve 504 also moves synchronously. The movement of the sliding sleeve 504 is transmitted to the drive rod 508, causing it to push and pull, which in turn pushes the movable rod 509 to extend outward. The extending motion of the movable rod 509 is converted into the radial expansion motion of the expansion plate 503, ultimately achieving uniform expansion of the heat shrink sleeve.

[0023] like Figure 2 and Figure 5 As shown, the protective mechanism 6 includes a guide rod 606 fixedly installed between the equipment housing 3 and the upright plate 4, and a threaded rod 602 rotatably installed between the equipment housing 3 and the upright plate 4. A second servo motor 601 is fixedly installed inside the equipment housing 3. A ring seat 605 is slidably installed on the guide rod 606, and the ring seat 605 is threadedly connected to the threaded rod 602. A soundproof cover 604 is fixedly installed inside the ring seat 605. A rubber ring 607 is fixedly installed at the end of the soundproof cover 604. An elastic paddle 603 is fixedly installed inside the soundproof cover 604. A coupling is provided at the output end of the second servo motor 601. One end of the threaded rod 602 is fixedly installed on the output end of the second servo motor 601 through the coupling.

[0024] Specifically, after the second servo motor 601 starts, it drives the ring seat 605 to move back and forth. When the ring seat 605 moves forward, the soundproof cover 604 covers the expansion mechanism 5 to reduce noise. When the ring seat 605 moves backward, the elastic lever 603 will push the expanded heat shrink tubing to detach it from the expansion plate 503. The heat shrink tubing detached from the expansion plate 503 will fall through the unloading port 2, thereby achieving automatic unloading.

[0025] Working principle: When in use, first put the heat shrink tubing on the expansion plate 503, then start the second servo motor 601. After the second servo motor 601 is started, it will drive the ring seat 605 to move back and forth. When the ring seat 605 moves forward, the sound insulation cover 604 will cover the expansion mechanism 5, thereby reducing noise. When the ring seat 605 moves backward, the elastic lever 603 will push the expanded heat shrink tubing to detach from the expansion plate 503. The heat shrink tubing detached from the expansion plate 503 will fall through the unloading port 2 to achieve automatic unloading. When the soundproof cover 604 covers the expansion mechanism 5, the first servo motor 502 can be started. After the first servo motor 502 is started, it will drive the drive screw 507 to rotate. After the drive screw 507 rotates, it will drive the screw nut 510 to move. After the screw nut 510 moves, it will drive the sliding sleeve 504 to move. After the sliding sleeve 504 moves, it will drive the rod 508 to push the movable rod 509 to unfold. After the movable rod 509 unfolds, it will drive the expansion plate 503 to unfold, thereby expanding the heat shrink sleeve.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat shrink tubing expansion and noise reduction device, comprising a base (1), wherein a discharge port (2) is provided on the base (1), a device housing (3) is fixedly installed on one side of the base (1), and a vertical plate (4) is fixedly installed on the other side of the base (1), characterized in that: An expansion mechanism (5) is installed on the equipment housing (3). The expansion mechanism (5) includes a first servo motor (502) fixedly installed inside the equipment housing (3) and a positioning tube (501) fixedly installed on one side of the equipment housing (3). A sleeve (505) is fixedly installed on the positioning tube (501). A sliding sleeve (504) is slidably installed on the positioning tube (501). A movable rod (509) is rotatably installed on the sliding sleeve (504). An expansion plate (503) is rotatably installed at the end of the movable rod (509). A drive rod (508) is connected between the sliding sleeve (504) and the movable rod (509). A protective mechanism (6) is installed between the equipment housing (3) and the upright plate (4).

2. The heat shrink tubing expansion noise reduction device according to claim 1, characterized in that: The expansion plate (503) is equipped with an electric heating wire (506), and a drive screw (507) is rotatably installed inside the positioning tube (501). The threads at the two ends of the drive screw (507) are opposite in direction. A screw nut (510) is threaded on the drive screw (507), and the screw nut (510) is fixedly installed inside the sliding sleeve (504).

3. The heat shrink tubing expansion noise reduction device according to claim 2, characterized in that: A limiting groove is provided on the positioning tube (501), and the sliding sleeve (504) is slidably installed on the positioning tube (501) through the limiting groove.

4. The heat shrink tubing expansion noise reduction device according to claim 3, characterized in that: One end of the movable rod (509) is rotatably mounted on the sleeve (505), and the other end of the movable rod (509) is rotatably mounted on the expansion plate (503). One end of the drive rod (508) is rotatably mounted on the sliding sleeve (504), and the other end of the drive rod (508) is rotatably mounted on the movable rod (509).

5. The heat shrink tubing expansion noise reduction device according to claim 4, characterized in that: The protective mechanism (6) includes a guide rod (606) fixedly installed between the equipment housing (3) and the upright plate (4) and a threaded screw (602) rotatably installed between the equipment housing (3) and the upright plate (4). A second servo motor (601) is fixedly installed inside the equipment housing (3). A ring seat (605) is slidably installed on the guide rod (606) and the ring seat (605) is threadedly connected to the threaded screw (602). A soundproof cover (604) is fixedly installed inside the ring seat (605). A rubber ring (607) is fixedly installed at the end of the soundproof cover (604). An elastic paddle (603) is fixedly installed inside the soundproof cover (604).

6. The heat shrink tubing expansion noise reduction device according to claim 5, characterized in that: The output end of the second servo motor (601) is provided with a coupling, and one end of the threaded screw (602) is fixedly installed on the output end of the second servo motor (601) through the coupling.

7. The heat shrink tubing expansion noise reduction device according to claim 6, characterized in that: The ring seat (605) has a sliding hole, and the ring seat (605) is slidably installed on the guide rod (606) through the sliding hole.

8. The heat shrink tubing expansion and noise reduction device according to claim 7, characterized in that: The soundproof cover (604) and the ring seat (605) are slidably installed on one side of the equipment housing (3), and the end of the elastic lever (603) is slightly higher than the expansion plate (503).

Citation Information

Patent Citations

  • Softening and expanding device for heat-shrinkable sleeve

    CN221678028U