A chain tooth cutting mechanism

Abstract

The utility model relates to zip fastener manufacturing technical field, especially chain tooth cutting mechanism, including blade and cutter holder component, the cutter holder component includes base and two cover plates of detachable installation on the base, and the cover plate between two leaves has the avoidance mouth, the base and the cover plate between leave have the placement groove for the chain tooth code dress placement, two the cover plate all can detachable installation has the adjusting seat, the blade can detachable installation is in the adjusting seat. The utility model through the chain tooth code dress before and after sliding in the placement groove, and through the blade cutting off the excess plastic connecting piece, leave the intact chain tooth to be used for meshing.

Description

Technical Field

[0001] This utility model relates to the field of zipper manufacturing technology, and in particular to a zipper tooth cutting mechanism. Background Technology

[0002] Resin zipper teeth require a high degree of engagement. These teeth are formed by injection molding on both sides of the fabric strip. To ensure proper shape and spacing, after injection molding using a specific mold, in addition to the required teeth, plastic connectors are also formed. Therefore, a cutting mechanism is needed to remove the excess plastic connectors, leaving intact teeth for engagement. Thus, a tooth cutting mechanism is required to meet production needs. Utility Model Content

[0003] This utility model solves the problems in related technologies and proposes a chain tooth cutting mechanism. The chain teeth are mounted in the placement groove and slide back and forth. The excess plastic connectors are removed by the blade, leaving intact chain teeth for engagement.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a chain tooth cutting mechanism, including a blade and a blade holder assembly, the blade holder assembly including a base and two cover plates detachably mounted on the base, an clearance opening between the two cover plates, a placement groove for placing chain tooth brackets between the base and the cover plates, an adjustment seat detachably mounted on each of the two cover plates, and the blade detachably mounted on the adjustment seat.

[0005] As a preferred embodiment, the surface of the blade that contacts the chain teeth is an inclined surface, and the angle between the inclined surface and the vertical surface is 60°.

[0006] As a preferred embodiment, mounting grooves are provided on both sides of the base and the cover plate, and fastening screws are installed in the mounting grooves. One end of the fastening screw is threaded with a nut, and the nut presses against the cover plate. The other end of the fastening screw is fixed to the base by a bolt.

[0007] As a preferred embodiment, the end of the adjusting seat near the clearance opening is formed with a blade mounting block, the blade mounting block is provided with a blade mounting groove, the blade is mounted in the blade mounting groove and protected by a blade guard plate that is detachably mounted on the blade mounting block.

[0008] As a preferred embodiment, an adjusting block is installed at the end of the adjusting seat away from the clearance opening via an adjusting screw.

[0009] As a preferred embodiment, an L-shaped plate is detachably mounted on the base, the top of the L-shaped plate is provided with a support groove, and a blade clearance groove is provided on the L-shaped plate at the position corresponding to the blade mounting groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a chain tooth holder that slides back and forth in the placement groove, and uses a blade to remove excess plastic connectors, leaving intact chain teeth for engagement; the contact surface between the blade and the chain tooth holder is a 60° inclined surface. Compared with the traditional straight contact surface or irregular inclined surface, the 60° inclined contact surface is one side of an equilateral triangle. This structure has extremely high stability, saves more effort during sliding cutting, reduces friction loss, improves the service life of the blade, reduces the frequency of blade replacement, and reduces costs. At the same time, after cutting, the chain teeth are flat, neatly arranged, and less prone to gaps, improving the appearance quality; the gap between the two adjustment seats can be adjusted, and the upper and lower installation positions of the blade can also be adjusted to accommodate chain tooth holders with different shrinkage rates. The adjustment process is simple and quick, and precise adjustment ensures production quality, making the chain tooth holder cut the plastic connectors cleaner and burr-free. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model for cutting chain teeth; Figure 3 This is a schematic diagram of the chain tooth cutting structure of this utility model (the arrow indicates the movement direction of the chain tooth mounting); Figure 4 This is a structural schematic diagram of the L-shaped plate of this utility model.

[0012] In the picture: 1. Blade, 2. Blade holder assembly, 21. Base, 211. Blade mounting block, 212. Blade mounting slot, 213. Blade guard plate, 214. Blade guard plate bolt, 215. Adjusting screw, 216. Adjusting block, 22. Cover plate, 23. Placement slot, 24. Adjusting seat, 25. Fastening screw, 26. L-shaped plate, 261. Support slot, 262. Clearance slot, 3. Chain tooth mounting, 31. Plastic connector. Detailed Implementation

[0013] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0014] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0015] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0016] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0017] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0018] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0019] like Figures 1 to 4 As shown, a chain tooth cutting mechanism includes a blade 1 and a blade holder assembly 2. The blade holder assembly 2 includes a base 21 and two cover plates 22 detachably mounted on the base 21. A clearance opening is provided between the two cover plates 22. A placement groove 23 for placing chain tooth mounting pieces 3 is provided between the base 21 and the cover plates 22. Adjustment seats 24 are detachably mounted on both cover plates 22. The blade 1 is detachably mounted on the adjustment seat 24. When cutting, the chain tooth mounting pieces 3 are placed in the placement groove 23 and can slide back and forth in the placement groove 23 to make cutting. The clearance opening is used to avoid plastic connectors 31. The blade 1 removes the excess plastic connectors 31, leaving intact chain teeth for engagement.

[0020] In one embodiment, the surface of the blade 1 that contacts the chain tooth 3 is an inclined surface, and the angle between this inclined surface and the vertical surface is 60°, that is... Figure 3 The angle α in the blade is 60°, and the end of the blade 1 closest to the feed tooth 3 is lower. Compared with the traditional straight contact surface or irregular bevel, the 60° bevel contact surface is one side of an equilateral triangle. This structure has extremely high stability, saves more effort during sliding cutting, reduces friction loss, improves the service life of the blade 1, reduces the frequency of blade 1 replacement, and reduces costs. At the same time, after cutting, the chain teeth are flat, neatly arranged, and less prone to gaps, thus improving the appearance quality.

[0021] In one embodiment, mounting grooves are provided on both sides of the base 21 and the cover plate 22. Fastening screws 25 are installed in the mounting grooves. One end of the fastening screw 25 is threaded with a nut and the nut presses against the cover plate 22. The other end of the fastening screw 25 is fixed to the base 21 by bolts.

[0022] In one embodiment, a blade mounting block 211 is formed at one end of the adjusting seat 21 near the clearance opening. A blade mounting groove 212 is provided on the blade mounting block 211. The blade 1 is mounted in the blade mounting groove 212 and protected by a blade guard plate 213 that is detachably mounted on the blade mounting block 211. The blade guard plate 213 and the blade mounting block 211 together form an inverted T-shaped structure. The blade guard plate 213 is detachably mounted on the blade mounting block 211 by a blade guard plate bolt 214.

[0023] In one embodiment, an adjusting block 216 is installed at the end of the adjusting seat 21 away from the clearance opening via an adjusting screw 215, which is used to adjust the distance between the two adjusting seats 21 and the chain tooth mounting 3.

[0024] Different resin zippers have different shrinkage rates and therefore different sizes. Loosening the adjusting screw 215 outwards moves the adjusting seat 21 and its blade 1 away from the zipper tooth assembly 3. Tightening the adjusting screw 215 inwards moves the adjusting seat 21 and its blade 1 closer to the zipper tooth assembly 3. At the same time, the up and down installation position of the blade 1 can be flexibly controlled by adjusting the blade guard bolt 214 to accommodate zipper tooth assemblies 3 with different shrinkage rates. The adjustment process is simple and quick, and the precise adjustment ensures production quality, allowing the zipper tooth assembly 3 to cut the plastic connector 31 more cleanly without burrs.

[0025] In one embodiment, a mounting groove is provided at one end of the base 21, and the L-shaped plate 21 is detachably installed in the mounting groove by screws. A support groove 261 is provided on the top of the L-shaped plate 26, which is used to support the plastic connector 31 of the chain tooth mounting 3. A blade avoidance groove 262 is provided on the L-shaped plate 26 at the position corresponding to the blade mounting groove 212 to avoid the blade 1.

[0026] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A chain tooth cutting mechanism, characterized in that: The device includes a blade (1) and a blade holder assembly (2). The blade holder assembly (2) includes a base (21) and two cover plates (22) that are detachably mounted on the base (21). A clearance opening is provided between the two cover plates (22). A placement groove (23) for placing a chain tooth mounting device (3) is provided between the base (21) and the cover plates (22). An adjustment seat (24) can be detachably mounted on each of the two cover plates (22). The blade (1) can be detachably mounted on the adjustment seat (24).

2. The element cutting mechanism of claim 1, wherein: The surface of the blade (1) that contacts the chain tooth assembly (3) is an inclined surface, and the angle between the inclined surface and the vertical surface is 60°.

3. The chain tooth cutting mechanism according to claim 1, characterized in that: The base (21) and the cover plate (22) are provided with mounting grooves on both sides. Fastening screws (25) are installed in the mounting grooves. One end of the fastening screw (25) is threaded with a nut and the nut presses against the cover plate (22). The other end of the fastening screw (25) is fixed to the base (21) by bolts.

4. The element cutting mechanism of claim 1, wherein: The adjusting seat (24) has a blade mounting block (211) formed at one end near the clearance opening. The blade mounting block (211) has a blade mounting groove (212). The blade (1) is mounted in the blade mounting groove (212) and protected by a blade guard plate (213) that is detachably mounted on the blade mounting block (211).

5. The element cutting mechanism of claim 4, wherein: An adjusting block (216) is installed at the end of the adjusting seat (24) away from the clearance opening via an adjusting screw (215).

6. The element cutting mechanism of claim 1, wherein: An L-shaped plate (26) is detachably installed on the base (21). A support groove (261) is provided on the top of the L-shaped plate (26), and a blade clearance groove (262) is provided on the L-shaped plate (26) at the position corresponding to the blade mounting groove (212).

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