Heat shrink tube annular hole cutting device

Abstract

The utility model relates to the technical field of heat shrink tube processing equipment, in particular to a heat shrink tube annular hole cutting device which comprises a heat insulation handle, a power line is arranged at the top of the heat insulation handle, an electric heating ring is in threaded connection with the lower end of the heat insulation handle, and a heat transfer guide seat is in threaded connection with the inner side of the electric heating ring. And a blade fixing seat is fixedly mounted at the bottom of the heat transfer guide seat. Through the arrangement of the heat insulation handle, a worker can hold the device to move, the device can be powered on under the assistance of the power line, then heat can be transmitted to the blade fixing base and the annular blade through the heat transmission guide base after the electric heating ring is heated, and then the annular blade is fixed to the blade fixing base through the guide head under the assistance of the guide head. The center position of a hole in the surface of a workpiece can be rapidly determined, hot melting cutting can be rapidly achieved after the heated annular blade makes contact with a heat shrink tube on the outer side of the workpiece, the cutting precision is high, use is convenient and flexible, and safety is good.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrink tube processing equipment, in particular to a heat shrink tube annular hole cutting device. Background Art

[0002] Heat shrink tubing is a special polyolefin heat shrink tubing. The outer layer is made of high-quality soft cross-linked polyolefin material and the inner layer is made of hot melt adhesive. The outer layer has the characteristics of insulation, corrosion resistance, and wear resistance, while the inner layer has the advantages of low melting point, waterproof sealing and high adhesion.

[0003] At present, heat shrink tubing is widely used in busbars, busbars, grounding bars and other conductive bars in various types of power equipment. It is mainly put on the outside of the conductive bar. After heat shrinkage, it fits tightly with the conductive copper bar and plays an insulating role on the outside. However, there are often some fixed holes and threaded holes on the surface of the conductive bar covered with heat shrink tubing, which are used for fixed connection between bars or terminal blocks. After heat shrinkage of the heat shrink tubing, it is necessary to cut a larger avoidance hole of the same shape than the original hole at the corresponding hole position to expose the corresponding hole of the conductive bar, so as to facilitate the installation and fixation of screws during use of the workpiece. The existing heat shrink tubing is mostly cut manually by staff using a blade, and the cutting efficiency is low, the aesthetics is poor, and there is a certain safety risk. Therefore, we propose a heat shrink tubing annular hole cutting device. Utility Model Content

[0004] The purpose of the utility model is to provide a device for cutting annular holes in a heat shrink tube, which has the advantages of high cutting accuracy and good safety in use, and solves the problem that the cutting of existing heat shrink tubes is mostly done by workers using blades, the cutting aesthetics is poor, and there are certain safety risks.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat shrink tube annular hole cutting device, comprising an insulating handle, a power cord is arranged on the top of the insulating handle, the lower end of the insulating handle is threadedly connected to an electric heating ring, the inner side of the electric heating ring is threadedly connected to a heat transfer guide seat, a blade fixing seat is fixedly installed on the bottom of the heat transfer guide seat, an annular blade is arranged on the outer side of the blade fixing seat, and a guide head is threadedly connected to the bottom of the blade fixing seat.

[0006] Preferably, the longitudinal section of the heat transfer base is an inverted T-shaped structure.

[0007] Preferably, the lower end of the guide head is conical, and the guide head is located at the center of the annular blade.

[0008] Preferably, an anti-slip cover is bonded to the outer side of the heat-insulating handle, and anti-slip rubber rings are provided at both upper and lower ends of the outer surface of the anti-slip cover.

[0009] Preferably, the inner surfaces around the blade fixing seat are provided with through holes, and the inner surfaces around the heat transfer guide seat are provided with air branch pipes adapted to the through holes, the upper ends of the air branch pipes are connected to a ventilation ring, and an air guide pipe is connected between the front end of the top of the ventilation ring and the bottom of the airbag.

[0010] Preferably, a fixing sleeve is provided at the lower end of the heat-insulating handle, a locking screw is threadedly connected to the rear side of the fixing sleeve, and a bearing plate is fixedly connected to the middle end of the front side of the fixing sleeve.

[0011] Preferably, an airbag is provided at the front end of the bearing plate, and a return spring is provided at the middle end of the inner cavity of the airbag.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model is provided with a heat-insulating handle, so that the staff can hold the device to move the position, and with the help of the power cord, the device can be powered on, and then the electric heating ring can transfer the heat to the blade fixing seat and the annular blade through the heat transfer guide seat after heating. Then, with the help of the guide head, the center position of the hole on the surface of the workpiece can be quickly determined, and after the heated annular blade contacts the heat shrink tube outside the workpiece, it can quickly perform hot-melt cutting on it, and the cutting accuracy is high, the use is convenient and flexible, and the safety is good.

[0014] 2. The utility model adopts the setting of the airbag, which can compress the reset spring after the airbag is squeezed, and can quickly send the gas inside the airbag into the ventilation ring through the air guide tube, and then spray it outward from the air branch pipe, so as to quickly blow out the hot melt pipe fragments adhered to the annular blade, avoiding the accumulation of hot melt pipe fragments in the annular blade, which is convenient for the staff to use. After the airbag is relaxed, the spring can quickly drive the airbag to recover, which is beneficial to the subsequent work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from a third viewing angle;

[0018] Figure 4 It is a schematic diagram of the matching structure of the ventilation ring and the fixing sleeve of the utility model.

[0019] In the figure: 1. Insulated handle; 2. Electric heating ring; 3. Heat transfer guide seat; 4. Blade fixing seat; 5. Ring blade; 6. Guide head; 7. Power cord; 8. Anti-slip cover; 9. Anti-slip rubber ring; 10. Fixing cover; 11. Air bag; 12. Carrying plate; 13. Air branch pipe; 14. Through hole; 15. Reset spring; 16. Ventilation ring; 17. Air guide pipe; 18. Locking screw. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The components of the present application, including the heat-insulating handle 1, the electric heating ring 2, the heat transfer guide seat 3, the blade fixing seat 4, the annular blade 5, the guide head 6, the power cord 7, the anti-slip sleeve 8, the anti-slip rubber ring 9, the fixing sleeve 10, the air bag 11, the supporting plate 12, the air branch pipe 13, the through hole 14, the reset spring 15, the ventilation ring 16, the air guide pipe 17 and the locking screw 18, are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through the technical manual or through conventional experimental methods.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 3 As shown, the utility model provides a technical solution: a heat shrink tube annular hole cutting device, comprising a heat insulating handle 1, a power cord 7 is arranged on the top of the heat insulating handle 1, the lower end of the heat insulating handle 1 is threadedly connected to an electric heating coil 2, the inner side of the electric heating coil 2 is threadedly connected to a heat transfer guide seat 3, the longitudinal section of the heat transfer guide seat 3 is an inverted T-shaped structure, a blade fixing seat 4 is fixedly installed on the bottom of the heat transfer guide seat 3, an annular blade 5 is arranged on the outer side of the blade fixing seat 4, a guide head 6 is threadedly connected to the bottom of the blade fixing seat 4, the lower end of the guide head 6 is conical, and the guide head 6 is located at the center of the annular blade 5.

[0026] The technical solution of the present invention is as follows: through the setting of the heat-insulating handle 1, the staff can hold the device to move the position, and with the assistance of the power cord 7, the device can be powered on, and then, after the electric heating coil 2 is heated, the heat can be transferred to the blade fixing seat 4 and the annular blade 5 through the heat transfer guide seat 3, and then, with the assistance of the guide head 6, the center position of the hole on the surface of the workpiece can be quickly determined, and after the heated annular blade 5 contacts the heat shrink tube on the outside of the workpiece, it can quickly perform hot-melt cutting on it, and the cutting accuracy is high, the use is convenient and flexible, and the safety is good.

[0027] Embodiment 2

[0028] On the basis of embodiment 1, the utility model is as follows Figure 1-Figure 4 As shown, an anti-skid cover 8 is bonded to the outer side of the heat-insulating handle 1, and anti-skid rubber rings 9 are provided at both upper and lower ends of the outer surface of the anti-skid cover 8.

[0029] The technical solution of the present invention can ensure the stability of the device when it is handheld and reduce the possibility of slipping by providing the anti-slip sleeve 8 and the anti-slip rubber ring 9.

[0030] Embodiment 3

[0031] On the basis of embodiment 1, the utility model is as follows Figure 1-Figure 3 As shown, the inner surface around the blade fixing seat 4 is disclosed to be provided with through holes 14, the inner surface around the heat transfer guide seat 3 is provided with air branch pipes 13 adapted to the through holes 14, the upper end of the air branch pipe 13 is connected with a ventilation ring 16, and an air guide pipe 17 is connected between the front end of the top of the ventilation ring 16 and the bottom of the air bag 11, the lower end of the heat insulation handle 1 is provided with a fixing sleeve 10, the rear side of the fixing sleeve 10 is threadedly connected with a locking screw 18, the middle end of the front side of the fixing sleeve 10 is fixedly connected with a bearing plate 12, the front end of the bearing plate 12 is provided with an air bag 11, and the middle end of the inner cavity of the air bag 11 is provided with a return spring 15.

[0032] The technical solution of the present invention is that through the setting of the airbag 11, the return spring 15 can be compressed after the airbag 11 is squeezed, and the gas inside the airbag 11 can be quickly sent into the ventilation ring 16 through the air guide tube 17, and then sprayed outward from the air branch pipe 13, so that the hot melt pipe fragments adhered to the annular blade 5 can be quickly blown out, avoiding the accumulation of hot melt pipe fragments in the annular blade 5, which is convenient for the use of the staff. After the airbag 11 is relaxed, the return spring 15 can quickly drive the airbag 11 to recover, which is beneficial to the subsequent work.

[0033] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0034] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A heat shrink tube annular hole cutting device, comprising a heat insulating handle (1), characterized in that: A power cord (7) is arranged at the top of the heat-insulating handle (1); the lower end of the heat-insulating handle (1) is threadedly connected to an electric heating coil (2); the inner side of the electric heating coil (2) is threadedly connected to a heat transfer guide seat (3); a blade fixing seat (4) is fixedly installed at the bottom of the heat transfer guide seat (3); an annular blade (5) is arranged on the outer side of the blade fixing seat (4); and a guide head (6) is threadedly connected to the bottom of the blade fixing seat (4).

2. A heat shrink tube annular hole cutting device according to claim 1, characterized in that: The longitudinal section of the heat transfer guide seat (3) is an inverted T-shaped structure.

3. The heat shrink tube annular hole cutting device according to claim 1, characterized in that: The lower end of the guide head (6) is conical, and the guide head (6) is located at the center of the annular blade (5).

4. The heat shrink tube annular hole cutting device according to claim 1, characterized in that: An anti-slip sleeve (8) is bonded to the outer side of the heat-insulating handle (1), and anti-slip rubber rings (9) are provided at both upper and lower ends of the outer surface of the anti-slip sleeve (8).

5. The heat shrink tube annular hole cutting device according to claim 1, characterized in that: The inner surface around the blade fixing seat (4) is provided with through holes (14), and the inner surface around the heat transfer guide seat (3) is provided with air distribution branch pipes (13) adapted to the through holes (14). The upper end of the air distribution branch pipe (13) is connected to a ventilation ring (16), and an air guide pipe (17) is connected between the front end of the top of the ventilation ring (16) and the bottom of the air bag (11).

6. The heat shrink tube annular hole cutting device according to claim 1, characterized in that: The lower end of the heat-insulating handle (1) is sleeved with a fixing sleeve (10), the rear side of the fixing sleeve (10) is threadedly connected with a locking screw (18), and the middle end of the front side of the fixing sleeve (10) is fixedly connected with a bearing plate (12).

7. A heat shrink tube annular hole cutting device according to claim 6, characterized in that: An air bag (11) is arranged at the front end of the bearing plate (12), and a return spring (15) is arranged at the middle end of the inner cavity of the air bag (11).

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