Cutting equipment for heating film of heating waistband
By combining Sn91Zn9 eutectic alloy cutter holder and cooling pipe, rapid shape adjustment of the heated waist belt cutting equipment was achieved, solving the problem of insufficient adjustment flexibility of the cutting equipment, reducing production costs and improving the quality stability of the heated waist belt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QINGHAN TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-19
AI Technical Summary
Existing cutting equipment lacks flexibility in adjusting to changes in cutting shape, resulting in high production costs and unstable quality of heated belts.
The Sn91Zn9 eutectic alloy cutter holder is used. The blade shape is adjusted by heating it to a liquid state, and it is quickly solidified by a cooling pipe. Combined with the clamping assembly and stamping mechanism, it can achieve flexible cutting.
No need to rework the die-cutting mold, reducing production costs and improving the flexibility of cutting shapes and the quality stability of the heated belt.
Smart Images

Figure CN224255559U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to cutting equipment, and in particular to a cutting equipment for heating film of a heated waist belt. Background Technology
[0002] The core of a heated belt is the heating film. For ease of production, the original heating film needs to be cut to obtain a shape that conforms to the belt body. Existing cutting equipment typically uses molds with preset shapes. The advantages of this method are high cutting efficiency and precision. However, the disadvantages are also significant: the mold shape is fixed, and when the required shape of the heating film changes, a new cutting mold needs to be produced, resulting in very high production costs. Therefore, during small-batch trial production of heated belts, the heating film is usually cut manually. This leads to inconsistent shapes of the cut heating film, making it difficult to guarantee the quality of the heated belt. Therefore, developing a cutting device that can flexibly change the shape of the cutting blade to better adapt to cutting needs is clearly very promising. Utility Model Content
[0003] The purpose of this invention is to provide a heating belt heating film cutting device to solve the problem of insufficient adjustment flexibility of existing cutting devices after the cutting shape changes.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A device for cutting heating film for a heated waist belt, comprising:
[0006] A tool holder, wherein a tool groove is formed on the tool holder;
[0007] A heating device is installed below the blade groove to heat the blade groove;
[0008] Sn91Zn9 eutectic alloy tool holder, set in tool slot;
[0009] The cutting tool is housed in a Sn91Zn9 eutectic alloy tool holder.
[0010] A buffer pad is provided on the upper surface of the hardened Sn91Zn9 eutectic alloy tool holder. The blade is hidden in the buffer pad and the cutting edge is exposed when the buffer pad is compressed.
[0011] A stamping mechanism is located above the blade holder to press the original heating film against the blade during stamping.
[0012] Preferably, it also includes a cooling pipe, which is laid in an S-shape at the bottom of the blade groove.
[0013] Preferably, the stamping mechanism includes a telescopic cylinder vertically disposed on the upper part of the cutting table, the lower end of the telescopic cylinder being connected to a cover, and a rubber pressure block being detachably installed in the cover, the hardness of the rubber pressure block being greater than that of the buffer pad.
[0014] Preferably, it also includes a blade mounting auxiliary mechanism, which includes a detachable adjustment platform installed in the cover. The adjustment platform has horizontally and vertically evenly distributed sliding grooves. A clamping component is installed in the sliding grooves with adjustable position. The position of the clamping component is adjusted so that the clamped blade is in the shape of the heating film to be cut.
[0015] Preferably, the clamping assembly includes a T-shaped rod slidably disposed in a sliding groove, the T-shaped rod being axially continuous, a through bolt being screwed into the T-shaped rod, a guide bar capable of horizontal sliding being disposed between the through bolt and the T-shaped rod, an adjusting groove being disposed on the guide bar, the through bolt passing through the adjusting groove and pressing against the surface of the guide bar, two vertically extending guide posts being disposed at the distal end of the guide bar, and a locking bolt being screwed into the through bolt, the locking bolt passing through the rear end of the T-shaped rod and abutting against the bottom of the sliding groove.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] The key to this solution lies in the fact that by heating at a relatively low temperature (230–250°C), the Sn91Zn9 eutectic alloy cutter holder can be thermally melted into a liquid state. At this point, the contour enclosed by the cutter can be easily adjusted, thereby achieving rapid changes in the shape of the cutting die. This solution eliminates the need for reprocessing new die-cutting molds, significantly reducing production costs. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 yes Figure 1 A sectional view;
[0020] Figure 3 This is an exploded view of this utility model;
[0021] Figure 4 This is a schematic diagram of the blade mounting auxiliary mechanism;
[0022] Figure 5 This is a schematic diagram of the clamping assembly;
[0023] Figure 6 This is an exploded view of the clamping components.
[0024] Reference numerals: 1. Tool holder; 1a. Tool groove; 2. Heating device; 3. Sn91Zn9 eutectic alloy tool holder; 4. Buffer pad; 5. Blade; 6. Rubber pressure block; 7. Cover; 8. Telescopic cylinder; 9. Cooling pipe; 10. Blade installation auxiliary mechanism; 10a. Adjusting platform; 10a1. Slide groove; 10b. Clamping assembly; 10b1. T-shaped rod; 10b2. Through bolt; 10b3. Locking bolt; 10b4. Guide bar; 10b5. Adjusting groove; 10b6. Guide column; 11. Stamping mechanism. Detailed Implementation
[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] like Figures 1-6The heating belt heating film cutting device shown includes a cutting table 1 with a cutting groove 1a on its upper surface. A Sn91Zn9 eutectic alloy cutting holder 3 for fixing the shape of the blade 5 is installed in the cutting groove 1a. A heating device 2 is also installed in the cutting table 1, positioned below the cutting groove 1a to heat the Sn91Zn9 eutectic alloy cutting holder 3 within the cutting groove 1a. It should be noted that the Sn91Zn9 eutectic alloy cutting holder in this design has a low melting temperature (210-220℃) and can melt into a liquid state after being heated by the heating device 2. In this design, when the Sn91Zn9 eutectic alloy cutting holder 3 is in a liquid state, the operator can easily adjust the shape of the blade 5. Subsequently, the blade's shape is maintained by keeping the Sn91Zn9 eutectic alloy cutting holder 3 hardened, thus preserving the adjusted blade profile.
[0029] It should be noted that the blade 5 in this solution is made of spring steel, which has strong elastic bending properties, so as to achieve a variety of shape changes.
[0030] In addition, a buffer pad 4 is provided in the blade groove 1a of this solution. The buffer pad has the ability to be compressed and rebounded, and the cutting edge of the blade 5 is hidden under the buffer pad 4 so that it can be exposed after the buffer pad is compressed. After the buffer pad 4 loses the pressure on it, the heating film cut out in the blade can be pushed out through the rebound.
[0031] It should be noted that the cutting equipment in this solution is also equipped with a stamping mechanism 11. The stamping mechanism 11 is located above the cutter table 1, and through vertical extension and retraction, it presses the original heating film passing below it onto the buffer pad, thus completing the cutting of the heating film.
[0032] It should be noted that in this scheme, after the shape of the blade 5 is adjusted, in order to improve the solidification rate of the molten Sn91Zn9 eutectic alloy blade holder 3, this scheme also includes a cooling pipe 9, which is laid in an S-shape at the lower part of the guide groove 1a. After the coolant is introduced into the cooling pipe, the hot-melted Sn91Zn9 eutectic alloy blade holder 3 can be rapidly cooled and solidified, thereby achieving the solidification of the blade after the shape has been adjusted.
[0033] It should be noted that the stamping mechanism 11 in this solution includes a telescopic cylinder 8 vertically positioned above the cutter head 1. A cover 7, capable of moving up and down with the cylinder, is connected to the lower end of the cylinder. A rubber pressure block 6 is detachably installed within the cover 7. The hardness of the rubber pressure block is greater than that of the buffer pad 4, allowing it to compress the buffer pad during the downward pressing process, exposing the blade edge hidden within the buffer pad and enabling die-cutting of the heating film passing through it.
[0034] It is also important to know that, in order to reduce the difficulty of maintaining the shape of the blade 5 when the Sn91Zn9 eutectic alloy tool holder 3 is in the hot-melt state, this solution also includes a blade installation auxiliary mechanism 10. Specifically, the blade installation auxiliary mechanism 10 includes an adjustment platform 10a that is installed in the cover after the rubber pressure block is removed from the cover. This adjustment platform is provided with horizontally and vertically evenly distributed sliding grooves 10a1, in which clamping components 10b are installed in adjustable positions to secure the blade. During blade installation, the operator uses a telescopic cylinder to insert the adjusted blade into the hot-melt Sn91Zn9 eutectic alloy tool holder and holds it until the Sn91Zn9 eutectic alloy tool holder re-solidifies.
[0035] It should be noted that the clamping assembly 10b in this solution includes a T-shaped rod 10b1 slidably disposed in the annular groove, the T-shaped rod 10b1 being an axially continuous structure. A through bolt 10b2 is screwed into the T-shaped rod 10b1. Simultaneously, a horizontally extending guide bar 10b4 is also provided on the upper part of the T-shaped rod 10b1, the guide bar having an adjustment groove 10b5 extending along its length. In this solution, the through bolt 10b2 passes through the adjustment groove 10b5 and is screwed onto the T-shaped rod 10b1, thereby enabling the guide bar to be adjusted and secured to the T-shaped rod 10b1. It should also be noted that the clamping assembly 10b further includes a locking bolt 10b3, the locking bolt 10b3 passing through the through bolt 10b2, with its end abutting against the bottom of the sliding groove 10a1 to prevent the clamping assembly 10b from sliding within the sliding groove. Meanwhile, this solution also has two guide posts 10b6 installed in parallel on the far end of the guide bar 10b4, and there is a gap between the two guide posts that can hold the blade.
[0036] Working Principle: When the cutting shape of the heating film needs to be changed, the operator first raises the stamping mechanism, then removes the buffer pad and the rubber pressure block in the stamping mechanism. Next, the adjusting platform in the blade installation auxiliary mechanism is installed into the cover. After the above steps are completed, the operator adjusts the distribution of the clamping components according to the shape of the heating film to be cut, then inserts the blade into the clamping components, with the upper part of the blade facing upwards. Subsequently, the operator activates the heating device to melt the Sn91Zn9 eutectic alloy blade holder into a liquid state, then drives the telescopic cylinder to descend and insert the blade into the molten Sn91Zn9 eutectic alloy blade holder, and waits for the Sn91Zn9 eutectic alloy blade holder to re-solidify. It should be noted that in this solution, to improve the cooling and solidification speed of the molten Sn91Zn9 eutectic alloy blade holder, cooling water can be introduced into the cooling pipe after the reshaped blade is inserted into the Sn91Zn9 eutectic alloy blade holder, so that the Sn91Zn9 eutectic alloy blade holder solidifies quickly. After the Sn91Zn9 eutectic alloy tool holder solidifies, the blade is fixed within it. Then, the telescopic cylinder can be retracted. Because the blade is fixed within the Sn91Zn9 eutectic alloy tool holder, the blade exits the clamping assembly after the telescopic cylinder retracts. The blade installation auxiliary mechanism is then removed from the housing, and the rubber pressure block is reinstalled. The heating film can then be cut again.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat generating waistband heat generating film cutting apparatus characterized by: include A tool holder (1) is provided with a tool groove (1a); A heating device (2) is provided below the knife groove (1a) to heat the knife groove (1a); Sn91Zn9 eutectic alloy tool holder (3) is disposed in tool groove (1a); The blade (5) is placed in the Sn91Zn9 eutectic alloy tool holder (3); A buffer pad (4) is provided on the upper surface of the hardened Sn91Zn9 eutectic alloy tool holder (3). The blade (5) is hidden in the buffer pad (4) and the cutting edge is exposed when the buffer pad (4) is pressed. A stamping mechanism (11) is disposed above the knife table (1) to press the original heating film against the blade (5) during stamping.
2. The heat generating waistband heat generating film cutting apparatus of claim 1, wherein: It also includes a cooling pipe (9), which is laid in an S-shape at the bottom of the knife groove (1a).
3. The heat generating waistband heat generating film cutting apparatus of claim 2, wherein: The stamping mechanism (11) includes a telescopic cylinder (8) vertically arranged on the upper part of the knife table (1). The lower end of the telescopic cylinder (8) is connected to the cover (7). A rubber pressure block (6) is detachably installed in the cover (7). The hardness of the rubber pressure block (6) is greater than that of the buffer pad (4).
4. The heat generating waistband heat generating film cutting apparatus of claim 3, wherein: It also includes a blade mounting auxiliary mechanism (10), which includes an adjustment platform (10a) detachably mounted in the cover (7). The adjustment platform (10a) is provided with horizontally and vertically evenly distributed sliding grooves (10a1). A clamping component (10b) is installed in the sliding groove (10a1) in an adjustable position. The position of the clamping component (10b) is adjusted so that the clamped blade (5) forms the desired shape of the heating film.
5. The heat generating waistband heat generating film cutting apparatus of claim 4, wherein: The clamping assembly (10b) includes a T-shaped rod (10b1) slidably disposed in a sliding groove (10a1). The T-shaped rod (10b1) is axially continuous, and a through bolt (10b2) is screwed into the T-shaped rod (10b1). A horizontally slidable guide bar (10b4) is provided between the through bolt (10b2) and the T-shaped rod (10b1). The guide bar (10b4) is provided with an adjustment groove (10b5). The through bolt (10b2) passes through the adjusting groove (10b5) and is pressed against the surface of the guide bar (10b4); the guide bar (10b4) is provided with two vertically extending guide posts (10b6) at its far end; a locking bolt (10b3) is also screwed into the through bolt (10b2); the locking bolt (10b3) passes through the T-shaped rod (10b1) and its rear end abuts against the bottom of the groove (10a1).