A watchband preforming device

Abstract

The utility model relates to a watchband pre -shaping device, including base and apron, be provided with the fixed groove through its upper end surface on the base, be provided with a plurality of first arc -shaped holes through the base on the base, the apron is detachable and places the upper end of base, be provided with a plurality of second arc -shaped holes through the apron on the apron, a plurality of second arc -shaped holes are in a plurality of first arc -shaped hole's top. Relative to prior art, the utility model can accurate positioning watchband, ensure the sizing, the bending degree of every batch watchband is consistent, guarantees the appearance integrity of finished product, reduces the equipment replacement cost.

Description

Technical Field

[0001] This utility model relates to the field of watch strap production fixture technology, and more specifically, to a watch strap pre-forming device. Background Technology

[0002] During the production of watch straps, especially nylon braided straps, hot pressing and laser finishing are required. However, some problems can still occur during the process. For example, nylon braided straps are prone to incomplete shaping during hot pressing and laser finishing, resulting in warping, bending, bulging, or dents, making it difficult to fit the mounting surface and creating noticeable gaps when paired with the watch case. Uneven edges in the laser-finished area can also cause skewed patterns, misaligned holes, or even some patterns or holes exceeding the strap's preset boundaries due to shaping deviation. Utility Model Content

[0003] This utility model aims to at least partially solve one of the aforementioned technical problems in the prior art. Therefore, one objective of this utility model is to provide a watch strap pre-forming device that can accurately position watch straps, ensuring consistent shaping dimensions and curvature in each batch, guaranteeing the integrity of the finished product's appearance, and reducing equipment replacement costs.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A watch strap pre-forming device, comprising:

[0005] The base has a fixing groove that penetrates its upper end face and a plurality of first arc-shaped holes that penetrate the base.

[0006] A cover plate is detachably placed on the upper end of the base. The cover plate is provided with a plurality of second arc-shaped holes penetrating the cover plate, and the plurality of second arc-shaped holes are located above the plurality of first arc-shaped holes.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the plurality of first arc-shaped holes and the plurality of second arc-shaped holes are arranged in a staggered manner.

[0009] Furthermore, it also includes:

[0010] Multiple first arc-shaped plates are fixedly placed in the fixing groove. The multiple first arc-shaped plates are arranged sequentially at intervals, and two adjacent first arc-shaped plates are located at both ends of a first arc-shaped hole.

[0011] Multiple second arc-shaped plates are fixedly placed at the lower end of the cover plate. All the multiple second arc-shaped plates are located in the fixing groove and are located above the multiple first arc-shaped plates. The multiple second arc-shaped plates are arranged sequentially at intervals, and two adjacent second arc-shaped plates are located at the two ends of a second arc-shaped hole.

[0012] Furthermore, the base is provided with a first positioning groove that opens downwards, and the first positioning groove communicates with a plurality of the first arc-shaped holes;

[0013] The cover plate is provided with a second positioning groove with an upward opening, and the second positioning groove is connected to a plurality of second arc-shaped holes.

[0014] Furthermore, it also includes:

[0015] Two fasteners are respectively fixed at both ends of the cover plate, and the cover plate is detachably connected to the base through the two fasteners.

[0016] Furthermore, the fastener includes:

[0017] Fastener seat, the fastener seat is fixedly placed on the side wall of the cover plate;

[0018] Fastener head, the fastener head is fixedly placed on the side wall of the base;

[0019] The fastener arm has its middle part rotatably connected to the fastener seat, one end of the fastener arm is connected to the fastener seat by a spring, and the other end of the fastener arm can be detachably fastened to the fastener head.

[0020] The beneficial effects of this utility model are: the fixing groove can accurately position the watch strap, preventing it from shifting during operation; the first and second arc-shaped holes can guide the tool to act along a fixed trajectory, ensuring that the shaping size and curvature of each batch of watch straps are consistent; the guiding effect of the first and second arc-shaped holes greatly shortens the single operation time, making it suitable for batch processing; the base and cover plate form a closed shaping space, and the tool only acts on the target area, which can prevent the watch strap surface from being scratched or damaged, ensuring the integrity of the finished product's appearance; the design of multiple first and second arc-shaped holes can correspond to the shaping needs of different parts of the watch strap, and by changing the appropriate tool, it can be used to process watch straps of various specifications, reducing equipment replacement costs. Attached Figure Description

[0021] Figure 1 This is a front view of a watch strap pre-forming device according to the present invention;

[0022] Figure 2 This is a top view of a watch strap pre-forming device according to the present invention;

[0023] Figure 3 for Figure 2 A sectional view of AA;

[0024] Figure 4 This is a side view of a watch strap pre-forming device according to the present invention;

[0025] Figure 5 This is a bottom view of a watch strap pre-formation device according to the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base; 101. Fixing groove; 102. First arc-shaped hole; 103. First positioning groove;

[0028] 2. Cover plate, 201. Second arc-shaped hole, 202. Second positioning groove.

[0029] 3. First curved plate; 4. Second curved plate;

[0030] 5. Fasteners, 501. Fastener base, 502. Fastener head, 503. Fastener arm. Detailed Implementation

[0031] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0032] like Figures 1 to 5 As shown, a watch strap pre-forming device includes:

[0033] The base 1 has a fixing groove 101 that penetrates its upper end face and a plurality of first arc-shaped holes 102 that penetrate the base 1.

[0034] Cover plate 2, which is detachably placed on the upper end of the base 1, is provided with a plurality of second arc-shaped holes 201 penetrating the cover plate 2, and the plurality of second arc-shaped holes 201 are located above the plurality of first arc-shaped holes 102.

[0035] In practical applications, the watch strap to be shaped is placed on the base 1. The fixing groove 101 of the base 1 is used to hold the edge or specific structure of the watch strap, restricting the lateral or longitudinal displacement of the watch strap during the shaping process and ensuring the precise positioning of the watch strap. The cover plate 2 is detachably placed on the upper end of the base 1. At this time, the second arc-shaped hole 201 of the cover plate 2 is completely aligned with the first arc-shaped hole 102 of the base, forming a through arc-shaped channel. External tools such as punches, pressure rods, heating rods, etc. are passed through the aligned first arc-shaped hole 102 and second arc-shaped hole 201 to apply pressure, heat or mechanical force to the target area of ​​the watch strap, so that the watch strap is shaped according to the preset arc-shaped hole trajectory or shape, and finally obtains the curvature or structural shape that meets the specifications.

[0036] In this embodiment, the fixing groove 101 can accurately position the watch strap, preventing it from shifting during operation. The first arc-shaped hole 102 and the second arc-shaped hole 201 guide the tool to act along a fixed trajectory, ensuring that the shaping size and curvature of each batch of watch straps are consistent, reducing errors from manual operation. The detachable cover plate 2 design facilitates quick loading and unloading of watch straps without repeated positioning adjustments. The guiding effect of the first arc-shaped hole 102 and the second arc-shaped hole 201 saves time for tool alignment, significantly shortening the single operation time compared to purely manual shaping, making it suitable for batch processing. The base 1 and the cover plate 2 form a closed shaping space, with the tool acting only on the target area, preventing scratches and damage to the watch strap surface and ensuring the integrity of the finished product's appearance. The design of multiple first arc-shaped holes 102 and second arc-shaped holes 201 can correspond to the shaping requirements of different parts of the watch strap. By changing the appropriate tool, it can be used to process watch straps of various specifications, reducing equipment replacement costs.

[0037] In the above embodiments, the plurality of first arc-shaped holes 102 and the plurality of second arc-shaped holes 201 are arranged in a staggered manner.

[0038] In practical applications, after the cover plate 2 covers the base 1, the solid portion between the first arc-shaped holes 102 forms the base support rib, and the solid portion between the second arc-shaped holes 201 forms the cover plate support rib. Due to the misalignment of multiple first arc-shaped holes 102 and multiple second arc-shaped holes 201, the base support rib and the cover plate support rib are staggered after the cover is closed. That is, the base support rib is located below the second arc-shaped holes 201, and the cover plate support rib is located above the first arc-shaped holes 102, together forming a three-dimensional support grid for the watch strap.

[0039] After the watch strap is placed on the base 1, the base support ribs lift the non-processed area of ​​the watch strap from below. After the cover plate 2 is closed, the cover plate support ribs press the corresponding position of the watch strap from above, forming a fixed effect of upper and lower clamping and multi-point support. When an external tool applies force or energy to the target processing area of ​​the watch strap through multiple staggered first arc holes 102 and multiple second arc holes 201, the base support ribs and cover plate support ribs will restrict the deformation of the watch strap in the non-processed area, allowing only the area where the tool acts to deform according to a preset trajectory. The spacing of the base support ribs and cover plate support ribs matches the curvature of the multiple first arc holes 102 and multiple second arc holes 201, ensuring that the positions of the support points and processing points are accurately corresponding, and avoiding wrinkles, displacement or excessive stretching of the watch strap due to force.

[0040] In this embodiment, the traditional misaligned hole design may cause the non-processed area of ​​the watch strap to warp or dent due to excessive local force. However, the inter-hole support structure, through multi-point clamping, firmly fixes the watch strap between the base and the cover plate, ensuring the overall flatness of the watch strap during processing. This is especially suitable for shaping thin and soft materials. The boundaries formed by the base support ribs and the cover plate support ribs strictly define the area of ​​tool action, ensuring that the watch strap deforms only within the channels corresponding to the multiple first arc-shaped holes 102 and the multiple second arc-shaped holes 201, avoiding curvature deviation caused by the diffusion of processing force. For example, in the segmented bending process of the watch strap, the support... The support ribs can precisely isolate different bending sections, ensuring that the curvature of each section is independently controllable; the support structure distributes the pressure during processing to multiple support points, avoiding indentations, tears, or material damage to the watch strap due to excessive force at a single point, which is especially suitable for woven watch straps with easily worn surfaces; the base support ribs and cover plate support ribs between multiple first arc-shaped holes 102 and multiple second arc-shaped holes 201 simultaneously enhance the structural rigidity of the cover plate 2 and the base 1, preventing deformation or breakage of the hole edges due to frequent stress, which can significantly reduce the wear rate of the device, especially in high-intensity, high-volume processing scenarios.

[0041] The above embodiments also include:

[0042] Multiple first arc-shaped plates 3 are fixedly placed in the fixing groove 101. The multiple first arc-shaped plates 3 are arranged sequentially at intervals, and two adjacent first arc-shaped plates 3 are located at both ends of a first arc-shaped hole 102.

[0043] Multiple second arc-shaped plates 4 are fixedly placed at the lower end of the cover plate 2. The multiple second arc-shaped plates 4 are all located in the fixing groove 101 and are located above the multiple first arc-shaped plates 3. The multiple second arc-shaped plates 4 are arranged sequentially at intervals, and two adjacent second arc-shaped plates 4 are located at both ends of a second arc-shaped hole 201.

[0044] In practical applications, after the watch strap to be processed is placed into the fixing groove 101, the first arc plate 3 lifts the watch strap from below, and its arc surface fits tightly against the inner or outer side of the watch strap. The first arc plates 3 arranged at intervals provide segmented shaping support for the watch strap. At the same time, the fixing groove 101 restricts the lateral displacement of the watch strap, while the first arc plate 3 restricts the offset of the watch strap in the thickness direction, thus initially determining the reference shape of the watch strap.

[0045] When the cover plate 2 is closed, the second arc-shaped plate 4 presses the watch strap from above, forming an arc-shaped clamp with the first arc-shaped plate 3 below. If the watch strap needs to bend inward, the first arc-shaped plate 3 provides convex support, and the second arc-shaped plate 4 presses it with concave pressure, forcing the watch strap to conform to the arc-shaped trajectory. If the watch strap needs to bend outward, the arc of the arc-shaped plate is reversed, forming a reverse constraint. At this time, the watch strap is strictly restricted between the first arc-shaped plate 3 and the second arc-shaped plate 4, and cannot undergo deformation in a non-preset direction.

[0046] When an external tool acts on the watch strap through the misaligned first arc-shaped hole 102 and second arc-shaped hole 201: the first arc-shaped hole 102 and second arc-shaped hole 201 guide the tool to move along a preset arc, ensuring accurate processing trajectory; the first arc-shaped plate 3 and second arc-shaped plate 4, as the solid boundaries at both ends of the hole, support the non-processed area of ​​the watch strap, preventing the edge of the watch strap from lifting when the tool is under force, and also limit the excessive insertion of the tool, preventing the processing range from exceeding the preset section; the cooperation between the first arc-shaped hole 102 and second arc-shaped hole 201 and the first arc-shaped plate 3 and second arc-shaped plate 4 allows the tool to operate only within the three-dimensional space formed by the arc-shaped hole channel and the arc-shaped plate boundary, achieving precise control of local deformation of the watch strap.

[0047] In this embodiment, the curved surfaces of the first arc-shaped hole 102 and the second arc-shaped hole 201 perfectly match the preset shape of the watch strap. By physically fitting and clamping instead of the traditional planar constraint, the watch strap is pre-pressed into an arc close to the finished product before processing, which greatly reduces the deformation error during processing. It is especially suitable for shaping multi-segment variable curvature watch straps. In the traditional structure, the edges of the first arc-shaped hole 102 and the second arc-shaped hole 201 may collapse or wrinkle due to the action of the tool. However, the first arc-shaped plate 3 and the second arc-shaped plate 4, as the support at both ends of the hole, can provide rigid support from the inside or outside of the watch strap, concentrating the processing force on the target area and avoiding edge deformation or material damage. The pre-positioning function of the first arc-shaped plate 3 and the second arc-shaped plate 4 reduces the time for manual adjustment of the watch strap position, and the design of fitting as soon as it is placed makes the positioning error smaller during batch processing. Combined with the guiding effect of the misaligned hole, it can significantly improve the efficiency of single processing.

[0048] In the above embodiment, the base 1 is provided with a first positioning groove 103 with an opening facing downward, and the first positioning groove 103 is connected to a plurality of first arc-shaped holes 102.

[0049] The cover plate 2 is provided with a second positioning groove 202 with an upward opening, and the second positioning groove 202 is connected to a plurality of second arc-shaped holes 201.

[0050] In practical applications, for the base side: the external tool first enters the downward-opening first positioning groove 103, slides along the straight trajectory of the first positioning groove 103, and finally precisely enters the corresponding first arc-shaped hole 102, completing a smooth transition from linear to arc-shaped movement; the tool first enters the upward-opening second positioning groove 202, and enters the second arc-shaped hole 201 along the groove guide, similarly achieving a linear to arc-shaped trajectory conversion; this combination of straight groove entry and guidance from the first arc-shaped hole 102 and the second arc-shaped hole 201 allows the tool to naturally enter the working position without manual precise alignment; the first positioning groove 103 or the second positioning groove 202 The width is slightly larger than the tool diameter, usually with a gap of 0.05-0.1mm, to ensure smooth tool insertion while limiting its lateral deviation; the connection between the first positioning groove 103 or the second positioning groove 202 and the first arc-shaped hole 102 and the second arc-shaped hole 201 adopts a smooth transition rounded corner design to avoid the tool getting stuck or deviating from its trajectory due to the obstruction of the sharp corners when entering the first arc-shaped hole 102 or the second arc-shaped hole 201; the length of the first positioning groove 103 or the second positioning groove 202 is set according to the tool's operating stroke, usually covering the entire path of the tool from its initial position to before entering the arc-shaped hole, ensuring that the entire insertion process is constrained.

[0051] In this embodiment, the straight opening of the first positioning groove 103 or the second positioning groove 202 can significantly expand the tool's entry range. Even if there is a slight deviation in the initial position of the tool, the trajectory can be gradually corrected by the groove wall of the first positioning groove 103 or the second positioning groove 202, and finally accurately enter the arc-shaped hole. This is especially suitable for rapid docking of automated equipment. For batch processing scenarios, the first positioning groove 103 and the second positioning groove 202 can ensure that the starting position and angle of each tool operation are completely consistent. During manual operation, the positioning groove provides a clear operating benchmark, reducing the error between different batches. During automated production, the first positioning groove 103 and the second positioning groove 202 can work with sensors to achieve secondary calibration of the tool position, ensuring the accuracy stability after long-term processing.

[0052] The above embodiments also include:

[0053] Two fasteners 5 are respectively fixed at both ends of the cover plate 2, and the cover plate 2 is detachably connected to the base 1 through the two fasteners 5.

[0054] In the above embodiments, the fastener 5 includes:

[0055] Fastener seat 501, the fastener seat 501 is fixedly placed on the side wall of the cover plate 2;

[0056] Fastener head 502, which is fixedly placed on the side wall of the base 1;

[0057] The fastener arm 503 is rotatably connected to the fastener seat 501 at its middle part. One end of the fastener arm 503 is connected to the fastener seat 501 by a spring, and the other end of the fastener arm 503 can be detachably fastened to the fastener head 502.

[0058] In practical application, when the cover plate 2 is placed on the base 1, the operator presses the spring connecting end of the fastener arm 503, causing the fastening end of the fastener arm 503 to overcome the spring force and lift around the central pivot. After the cover plate 2 is fully aligned, the fastener arm 503 is released, the spring returns to its deformation and pulls the fastener arm 503 to rotate, causing the fastening end of the fastener arm 503 to fall naturally and precisely engage with the fastener head 502 of the base 1. At this time, the spring always applies tension to the fastener arm 503, ensuring that the fastening end of the fastener arm 503 and the fastener head 502 are tightly fitted together, forming a stable locking state, ensuring that the cover plate 2 and the base 1 do not undergo relative displacement during processing. When it is necessary to remove the cover plate 2, the spring connecting end of the fastener arm 503 is pressed again, causing the fastening end to overcome the spring force and separate from the fastener head 502. The cover plate 2 is then lifted upwards, completing the separation of the base 1 and the cover plate 2. The operation is convenient and requires no additional tools.

[0059] In this embodiment, the spring-loaded fastener arm 503 maintains a constant fastening force, ensuring a tight fit between the cover plate 2 and the base 1 during processing, thus avoiding shaping errors caused by gaps. The pressing and releasing operations of the fastener 5 can be completed within 1-2 seconds, significantly shortening the time for removing and placing the cover plate 2. The two symmetrically distributed fasteners 5 can be operated simultaneously with one hand, further improving efficiency, and are particularly suitable for scenarios where watch straps are frequently removed and placed during batch processing. The spring force during fastening has a certain buffering effect, which can prevent edge wear caused by hard contact between the cover plate 2 and the base 1. At the same time, the stable connection reduces the friction or compression of the watch strap caused by the shaking of the cover plate 2 during processing, protecting the surface quality of the watch strap.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A watch strap pre-forming device, characterized in that, include: The base has a fixing groove that penetrates its upper end face and a plurality of first arc-shaped holes that penetrate the base. A cover plate is detachably placed on the upper end of the base. The cover plate is provided with a plurality of second arc-shaped holes penetrating the cover plate, and the plurality of second arc-shaped holes are located above the plurality of first arc-shaped holes.

2. The watch strap pre-forming device according to claim 1, characterized in that, The first arc-shaped holes and the second arc-shaped holes are arranged in a staggered manner.

3. The watch strap pre-forming device according to claim 1 or 2, characterized in that, Also includes: Multiple first arc-shaped plates are fixedly placed in the fixing groove. The multiple first arc-shaped plates are arranged sequentially at intervals, and two adjacent first arc-shaped plates are located at both ends of a first arc-shaped hole. Multiple second arc-shaped plates are fixedly placed at the lower end of the cover plate. All the multiple second arc-shaped plates are located in the fixing groove and are located above the multiple first arc-shaped plates. The multiple second arc-shaped plates are arranged sequentially at intervals, and two adjacent second arc-shaped plates are located at the two ends of a second arc-shaped hole.

4. The watch strap pre-forming device according to claim 1, characterized in that, The base is provided with a first positioning groove that opens downwards, and the first positioning groove communicates with a plurality of first arc holes; The cover plate is provided with a second positioning groove with an upward opening, and the second positioning groove is connected to a plurality of second arc-shaped holes.

5. The watch strap pre-forming device according to claim 1, characterized in that, Also includes: Two fasteners are respectively fixed at both ends of the cover plate, and the cover plate is detachably connected to the base through the two fasteners.

6. The watch strap pre-forming device according to claim 5, characterized in that, The fastener includes: Fastener seat, the fastener seat is fixedly placed on the side wall of the cover plate; Fastener head, the fastener head is fixedly placed on the side wall of the base; The fastener arm has its middle part rotatably connected to the fastener seat, one end of the fastener arm is connected to the fastener seat by a spring, and the other end of the fastener arm can be detachably fastened to the fastener head.

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