Heat shrink tube winding guide mechanism

Abstract

The utility model discloses a heat shrink tube rolling guide mechanism which comprises a guide assembly arranged on a sliding block, the guide assembly comprises two vertical rods and a guide plastic part, the two vertical rods are symmetrically arranged on the sliding block, the guide plastic part is arranged on the vertical rods in a rolling and sleeving mode, and a first cavity and a second cavity are annularly arranged on the guide plastic part at equal intervals in a sealed mode. The first chamber and the second chamber are separated through an interlayer and are communicated through micropores formed in the interlayer. The symmetrical cavities (the first cavity and the second cavity) and the inner wall parallel structure of the guiding plastic part enable stress distribution to be uniform, prevent the thermoplastic pipe from being deformed or broken due to local stress concentration and improve guiding stability. The convex design of the cambered surface uniformly disperses counter-acting force, reduces impact and abrasion, and prolongs the service life. The uniform deformation of the cavity is combined with the rapid medium transfer function of the micropores, so that the pressure difference can be rapidly balanced, the stress fluctuation is offset, and the stable and accurate guiding process is ensured.

Description

Technical Field

[0001] This utility model relates to the field of heat shrink tubing technology, and in particular to a heat shrink tubing winding and guiding mechanism. Background Technology

[0002] The heat shrink tubing winding guide mechanism is a key component in heat shrink tubing production equipment. It is mainly used to ensure that the heat shrink tubing is neatly and evenly wound during the winding process, avoiding problems such as loosening, deviation, or overlap. However, the friction and compression between the uncooled heat shrink tubing and the guide rod of the guide mechanism can cause the heat shrink tubing to deform. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To address the aforementioned problems, this utility model provides the following technical solution: A heat shrink tubing winding guide mechanism includes a guide assembly disposed on a slider. The guide assembly includes two uprights and a guide plastic part. The two uprights are symmetrically disposed on the slider. The guide plastic part is rolled and sleeved on the uprights. The guide plastic part has a first chamber and a second chamber enclosed in an annular arrangement at equal intervals. The first chamber and the second chamber are separated by a partition and connected by micropores opened in the partition.

[0005] Preferably, the slider has a sliding hole, and the slider is fitted onto the outer surface of the slider rod through the sliding hole.

[0006] Preferably, the slider is provided with a threaded sleeve, which is threadedly connected to the lead screw.

[0007] Preferably, a bearing is fitted onto the upright, a sleeve is fitted onto the bearing, and a guide plastic part is fixed onto the sleeve.

[0008] Preferably, the sleeve has serrations at both ends, and the guide plastic part has grooves at both ends, the grooves engaging with the serrations.

[0009] Preferably, the bottom surface of the inner wall of the first chamber and the second chamber is parallel to the inner wall surface of the guide plastic part.

[0010] Preferably, the arc surface of the guide plastic part convexes towards the outer surface of the guide plastic part.

[0011] The beneficial effects of this invention are as follows: the symmetrical chambers (first chamber and second chamber) and their parallel inner wall structure of the guide plastic part ensure uniform stress distribution, preventing deformation or breakage of the thermoplastic tube due to local stress concentration, and improving guiding stability. The convex design of the arc surface evenly disperses the reaction force, reducing impact, wear, and extending service life. The uniform deformation of the chambers, combined with the rapid medium transfer function of the micropores, can quickly balance pressure differences, offset stress fluctuations, and ensure a smooth and precise guiding process. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0013] Figure 1 This is a perspective view of the entire embodiment.

[0014] Figure 2 This is an example. Figure 1 Exploded 3D view of the central guide mechanism.

[0015] Figure 3 This is a perspective view of the guide plastic part and sleeve in this embodiment.

[0016] Figure 4 This is a three-dimensional sectional view of the guide plastic part in this embodiment.

[0017] Figure 5 This is a schematic diagram of the structure of the guide plastic part in this embodiment.

[0018] In the diagram; slider 100, sliding hole 102, threaded sleeve 103;

[0019] Slide rod 200, lead screw 300, guide assembly 400;

[0020] Upright 401, bearing 402, sleeve 403, serration 403a, inner wall surface 404-1, guide plastic part 404, groove 404a, first chamber 404b, bottom surface 404b-1, arc surface 404b-2;

[0021] The second chamber is 404c, the partition is 404e, and the micropores are 404e-1. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1

[0026] Reference Figures 1 to 4 This embodiment of the present invention provides a heat shrink tubing winding guide mechanism, including a guide assembly 400 disposed on a slider 100. The guide assembly 400 includes two uprights 401 and a guide plastic part 404. The two uprights 401 are symmetrically disposed on the slider 100. The guide plastic part 404 is rolled and sleeved on the uprights 401. The guide plastic part 404 has a first chamber 404b and a second chamber 404c that are annularly and equally spaced. The first chamber 404b and the second chamber 404c are separated by a partition 404e and connected by a micro-hole 404e-1 opened in the partition 404e. The slider 100 has a sliding hole 102. The slider 100 is sleeved on the outer surface of the slide rod 200 through the sliding hole 102. The slider 100 has a threaded sleeve 103, which is threadedly connected to the lead screw 300.

[0027] Specifically, the slider 100 is used to slide along the slide rod 200 to realize the lateral movement of the guide mechanism;

[0028] The guide assembly 400 is rolled on the slider 100 to guide the heat shrink tubing winding, reducing friction and thermal deformation through rolling friction.

[0029] The lead screw 300 engages with the threaded sleeve 103 on the slider 100 to drive the slider 100 to move, achieving dynamic adjustment; (one implementation scheme is given below: one end of the lead screw 300 is connected to a servo motor, which receives signals through a PLC or motion controller to adjust the position of the slider 100 in real time. When the winding speed changes, the motor synchronously changes the speed of the lead screw 300, causing the guide plastic part 404 to move laterally at a variable speed, ensuring that the heat shrink tubing is wound evenly. An encoder or grating ruler is used to monitor the position of the slider 100 in real time to form a closed-loop control).

[0030] The guide assembly 400 includes two symmetrically arranged uprights 401 and a guide plastic part 404 that can be rolled on the uprights 401. The guide plastic part 404 is made of low friction and high temperature resistant material (such as PEEK or PTFE composite material) to reduce friction with heat shrink tubing and avoid scratches or thermal deformation.

[0031] The guide plastic part 404 has a first chamber 404b and a second chamber 404c distributed in an annular shape at equal intervals inside. The two chambers are separated by a partition 404e and connected by micropores 404e-1 on the partition 404e. The first chamber 404b or the second chamber 404c corresponds to the outer surface of the guide plastic part 404 and contacts the thermoplastic tube during guidance. The medium of the chamber squeezed by the thermoplastic tube enters the other chamber through the micropores 404e-1. The flow of the medium in the two chambers reduces the stress of the thermoplastic tube and plays a buffering role. The micropores 404e-1 can also uniformly reduce the stress of the thermoplastic tube during buffering. The two chambers are distributed in an annular shape at equal intervals on the guide plastic part 404. As the guide plastic part 404 rolls continuously, each chamber takes turns buffering the thermoplastic tube.

[0032] Working principle: The rotation of the lead screw 300 drives the slider 100 to move along the slide rod 200, so that the position of the guide plastic part 404 can be automatically adjusted according to the winding speed and tension of the heat shrink tubing, avoiding deformation caused by compression in a fixed position.

[0033] The guide plastic part 404 can roll around the upright 401, reducing sliding friction with the heat shrink tubing and lowering the risk of surface damage;

[0034] When the heat shrink tubing comes into contact with the guide plastic part 404, the compressive stress is transmitted to the first chamber 404b through the second chamber 404c. The micropores 404e-1 make the pressure evenly distributed, avoiding deformation caused by hard collision. The guide plastic part 404 can roll around the upright 401. Combined with the chamber buffer, friction and impact are greatly reduced.

[0035] Example 2

[0036] Reference Figures 1 to 5 In this embodiment of the present utility model, a bearing 402 is sleeved on the upright 401, a sleeve 403 is sleeved on the bearing 402, a guide plastic part 404 is fixed on the sleeve 403, the sleeve 403 has serrations 403a at both ends, and the guide plastic part 404 has grooves 404a at both ends, and the grooves 404a are engaged with the serrations 403a.

[0037] Specifically, a bearing 402 is fitted onto the upright 401, and a sleeve 403 is installed on the outside of the bearing 402, so that the guide plastic part 404 can rotate freely, further improving rolling friction. The sleeve 403 is designed with serrations 403a at both ends, which engage with the grooves 404a at both ends of the guide plastic part 404 to ensure that the guide plastic part 404 and the sleeve 403 rotate synchronously and avoid slippage.

[0038] The bottom surface 404b-1 of the inner wall of the first chamber 404b and the second chamber 404c is parallel to the inner wall surface 404-1 of the inner wall of the guide plastic part 404, and the arc surface 404b-2 of the guide plastic part 404 protrudes towards the outer surface of the guide plastic part 404.

[0039] Specifically, the guide plastic part 404 is cylindrical, and its two chambers are semi-circular. The inner wall surface 404-1 of the guide plastic part 404 is parallel to the inner wall of the cylindrical guide plastic part 404, and the arc surface 404b-2 of the guide plastic part 404 is convex to the outer surface of the guide plastic part 404. Structurally, the uniform structure of the guide plastic part 404 is conducive to improving its service life and providing more uniform buffering for the thermoplastic tube during guidance. When pressure is applied, the arc surface 404b-2 of the guide plastic part 404 provides a more uniform reaction force on the thermoplastic tube and the stress on the contact surface of the guide plastic part 404, thus avoiding the problem of excessive local stress leading to pulling. At the same time, it is conducive to uniform deformation of the chambers, so that the micropores 404e-1 can more quickly discharge the chamber medium from one chamber to another, achieving rapid response to offset the stress of the thermoplastic tube.

[0040] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0041] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A heat shrink tubing rewinding and guiding mechanism, characterized in that: The guide assembly (400) is disposed on the slider (100). The guide assembly (400) includes two uprights (401) and a guide plastic part (404). The two uprights (401) are symmetrically disposed on the slider (100). The guide plastic part (404) is rolled on the uprights (401). The guide plastic part (404) is provided with a first chamber (404b) and a second chamber (404c) at equal intervals in an annular shape. The first chamber (404b) and the second chamber (404c) are separated by a partition (404e) and connected by a micropore (404e-1) opened in the partition (404e).

2. The heat shrink tubing winding and guiding mechanism as described in claim 1, characterized in that: The slider (100) has a sliding hole (102) and the slider (100) is sleeved on the outer surface of the slider rod (200) through the sliding hole (102).

3. The heat shrink tubing winding and guiding mechanism as described in claim 2, characterized in that: The slider (100) is provided with a screw sleeve (103), which is threadedly connected to the lead screw (300).

4. The heat shrink tubing winding and guiding mechanism as described in claim 1, characterized in that: The upright (401) is fitted with a bearing (402), and the bearing (402) is fitted with a sleeve (403). The guide plastic part (404) is fixed on the sleeve (403).

5. The heat shrink tubing winding and guiding mechanism as described in claim 4, characterized in that: The sleeve (403) has serrations (403a) at both ends, and the guide plastic part (404) has grooves (404a) at both ends, and the grooves (404a) are engaged with the serrations (403a).

6. The heat shrink tubing winding and guiding mechanism as described in claim 1, characterized in that: The bottom surface (404b-1) of the inner wall of the first chamber (404b) and the second chamber (404c) is parallel to the inner wall surface (404-1) of the inner wall of the guide plastic part (404).

7. The heat shrink tubing winding and guiding mechanism as described in claim 6, characterized in that: The arc surface (404b-2) of the guide plastic part (404) protrudes towards the outer surface of the guide plastic part (404).

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