A tooling mechanism for a sewing machine rotary hook mounting and positioning system

By installing side and front cameras on the sewing machine, combined with positioning and adjustment structures, the problems of inconsistent rotary hook installation and needle damage were solved. This enabled rapid adaptation and precise positioning of the camera on different sewing machine models, improving installation efficiency and accuracy.

CN224430946UActive Publication Date: 2026-06-30TAIZHOU INST OF MEASUREMENT TECH +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU INST OF MEASUREMENT TECH
Filing Date
2025-07-23
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

During the installation of the rotary hook on existing sewing machines, it is difficult to accurately determine the distance between the rotary hook and the needle, resulting in inconsistent installation and easy damage to the needle. Furthermore, existing vision equipment cannot be adapted to different models of sewing machines.

Method used

By combining a side camera and a front camera with a positioning and adjustment structure, the camera position and angle can be adjusted through positioning grooves, limiting plates, sliding components, rotating components, and angle deflection components, enabling quick installation and precise positioning of the camera on different sewing machine models.

Benefits of technology

It enables rapid adaptation and precise positioning of the camera among different sewing machine models, improves installation efficiency and consistency, avoids needle damage, and meets the precision requirements for rotary hook installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224430946U_ABST
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Abstract

This utility model discloses a tooling mechanism for a sewing machine rotary hook installation and positioning system. The sewing machine rotary hook installation and positioning system includes a side camera and a front camera. The tooling mechanism includes a positioning structure and an adjustment structure connected to the positioning structure. The front camera is connected to the positioning structure, and the side camera is connected to the adjustment structure. The side camera's position and angle are adjusted by the adjustment structure. This utility model achieves quick and easy installation of the camera without adjustment between sewing machines of the same model through the positioning groove and limiting plate of the positioning frame. The horizontal position and angle of the camera are adjusted by the first sliding component, the second sliding component, the horizontal rotation component, and the angle deflection component, so that the camera can meet the installation requirements of different sewing machine models. The tooling mechanism has the advantages of being compact and lightweight, and the camera's field of view is ready to use immediately.
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Description

Technical Field

[0001] This utility model belongs to the field of sewing machine technology and relates to a tooling mechanism for a sewing machine rotary hook installation and positioning system. Background Technology

[0002] Industrial flatbed sewing machines have complex structures and numerous parts. During the production and installation process, the most critical step—the installation of the rotary hook—requires manual judgment of the hook-to-needle distance using positioning tools and the installer's experience. If the hook-to-needle distance is too large, thread cannot be hooked; if it's too small, needle collision and damage can occur. Typically, the hook-to-needle distance cannot be directly observed visually due to interference from the sewing machine body and other parts. Therefore, during production and installation, installers must press the needle by hand and subjectively judge the hook installation's quality based on tactile feedback. This results in inconsistencies within the same batch of sewing machines.

[0003] Currently, constructive suggestions include using visual equipment such as cameras. The cameras capture images of the rotary hook and needle at specific angles and distances, magnify the images, and calculate the distance between the rotary hook and needle using conventional image processing. This guides production and installation personnel to complete the rotary hook installation. However, sewing machines have complex structures and numerous parts, placing strict requirements on camera positioning. Currently, cameras are rigidly connected, and their position and angle are not adjustable. Therefore, it is necessary to control the machining precision of the camera mounting bracket to ensure the image distance after camera installation, making fine-tuning of the image distance impossible. Furthermore, the same camera cannot be adapted to different models of flatbed sewing machines. Summary of the Invention

[0004] In order to overcome at least one deficiency of the prior art, this utility model provides a tooling mechanism for a sewing machine rotary hook mounting and positioning system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tooling mechanism for a sewing machine rotary hook installation and positioning system, the sewing machine rotary hook installation and positioning system including a side camera and a front camera, the tooling mechanism including a positioning structure and an adjustment structure connected to the positioning structure, the front camera being connected to the positioning structure, the side camera being connected to the adjustment structure, and the side camera adjusting its position and angle through the adjustment structure.

[0006] Furthermore, the positioning structure includes a positioning frame with a positioning groove, which is fitted and installed to fit the edge of the sewing machine's fixed platform.

[0007] Furthermore, the positioning structure also includes a limiting plate, which is fixed to the positioning frame and located on the end face of the positioning groove. The limiting plate abuts against the edge end face of the fixed platform that is inserted into the positioning groove.

[0008] Furthermore, the adjustment structure includes a first sliding component, a second sliding component, a horizontal rotation component, and an angle deflection component. The angle deflection component is connected to the side camera, the horizontal rotation component is connected to the angle deflection component, the second sliding component is connected to the horizontal rotation component, the first sliding component is connected to the second sliding component, and the first sliding component is connected to the positioning frame.

[0009] Furthermore, it also includes a handle, which is fixed on the positioning frame.

[0010] Furthermore, the side camera is fixed to the camera mounting plate, and the camera mounting plate is movably connected to the angle deflection assembly.

[0011] Furthermore, the horizontal rotation assembly includes a rotation motor, and the power output shaft of the rotation motor is fixedly connected to the angle deflection assembly.

[0012] Furthermore, the second sliding assembly includes a sliding frame, a fixed block, and a cylinder. The fixed block is slidably mounted on the sliding frame, the cylinder is fixedly mounted on the sliding frame, the fixed block is fixedly mounted on the power output shaft of the cylinder, and the rotating motor is fixedly mounted on the fixed block.

[0013] Furthermore, the first sliding component includes a slider and a slide rail. The slider is slidably connected to the slide rail, the slide rail is fixed to the positioning frame, and the sliding frame is fixed to the slider.

[0014] In summary, the advantages of this utility model are as follows:

[0015] This utility model enables the camera to be adapted and quickly installed between sewing machines of the same model without adjustment through the positioning groove and limiting plate of the positioning frame. The horizontal position and angle of the camera are adjusted by the first sliding component, the second sliding component, the horizontal rotation component and the angle deflection component, so that the camera can meet the installation requirements of different sewing machine models. The tooling mechanism has the advantages of being compact and lightweight, and the camera field of view is ready to use immediately. Attached Figure Description

[0016] Figure 1 This is an isometric drawing of the tooling mechanism of this utility model.

[0017] Figure 2 This is an isometric drawing of the tooling mechanism of this utility model.

[0018] Figure 3 This is a front view of the tooling mechanism of this utility model. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0022] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of this utility model may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.

[0023] Example 1:

[0024] like Figures 1-3 As shown, a tooling mechanism for a sewing machine rotary hook installation and positioning system is provided. The sewing machine rotary hook installation and positioning system includes a side camera 1 and a front camera 2. The tooling mechanism includes a positioning structure 3 and an adjustment structure 4 connected to the positioning structure 3. The front camera 2 is connected to the positioning structure 3, and the side camera 1 is connected to the adjustment structure 4. The side camera 1 adjusts its position and angle through the adjustment structure 4.

[0025] The sewing machine is equipped with a fixed platform, and the tooling mechanism is installed on the fixed platform to achieve a fixed connection with the sewing machine. The fixed platform is generally the outer shell of the sewing machine.

[0026] For ease of description, an xoy coordinate system is established, where the x-direction represents the length of the tooling mechanism, the y-direction represents the width of the tooling mechanism, and the z-direction represents the height of the tooling mechanism.

[0027] The positioning structure 3 includes a positioning frame 31, which has a positioning groove 311. The positioning groove 311 is a concave structure and is adapted to the edge of the fixed platform. The edge is engaged in the positioning groove 311 to position the positioning frame 31 and the fixed platform for installation, ensuring the initial fixation of the relative position of the camera and the sewing machine, and improving the installation efficiency and accuracy of the positioning frame 31.

[0028] The width of the positioning groove 311 is slightly larger than that of the fixed platform to accommodate dimensional errors caused by the sandblasting of the housing.

[0029] The tooling mechanism also includes magnets (not shown in the figure), the fixed platform is a metal platform, the positioning frame 31 is fixed with several magnet mounting slots (not shown in the figure), and the magnetic blocks are set in the magnet mounting slots to fasten the positioning frame 31 to the fixed platform.

[0030] The positioning structure 3 also includes a limiting plate 32, which is fixed to the positioning frame 31 and located on the end face of the positioning groove 31. The edge of the fixed platform is inserted into the positioning groove 311, and the edge end face abuts against the limiting plate 32, thus determining that the fixed platform is in a limited fixed position and ensuring the consistency of the tooling mechanism installed on the same model of sewing machine.

[0031] The positioning frame 31 is fixedly mounted on the fixing frame 33, and the front camera 2 is fixedly mounted on the fixing frame 33.

[0032] The adjustment structure 4 includes a first sliding component 40, a second sliding component 41, a horizontal rotation component 42, and an angle deflection component 43. The first sliding component 40, the second sliding component 41, the horizontal rotation component 42, and the angle deflection component 43 are respectively connected to the side camera 1. The angle deflection component 43 is connected to the side camera 1 and adjusts the vertical angle of the side camera 1. The horizontal rotation component 42 is connected to the angle deflection component 43 and adjusts the horizontal angle of the side camera 1. The second sliding component 41 is connected to the horizontal rotation component 42 and adjusts the position of the side camera 1 in the y-direction. The first sliding component 40 is connected to the second sliding component 41 and adjusts the position of the side camera 1 in the x-direction. The horizontal position of the side camera 1 is adjusted by the first sliding component 40 and the second sliding component 41, and the horizontal angle of the side camera 1 is adjusted by the horizontal rotation component 42. Figure 1 The angle of deflection in direction a is adjusted by the angle deflection component 43 to change the vertical angle of the side camera 1, i.e., along... Figure 1 The angle of deflection in the direction of b.

[0033] The side camera 1 is connected to the angle deflection component 43 via the camera mounting plate 11. Specifically, the side camera 1 is fixed on the camera mounting plate 11, and the camera mounting plate 11 is movably connected to the angle deflection component 43. The vertical angle of the side camera 1 is adjusted by the angle deflection component 43.

[0034] The angle deflection component 43 is configured as an automatic or manual drive structure. The automatic structure can use an automatic drive device such as a motor. The power output shaft of the motor is fixedly connected to the camera mounting plate 11. The motor drives the side camera 1 to deflect at the corresponding angle by driving the camera mounting plate 11. The manual structure is that the angle deflection component 43 is rotatably connected to the camera mounting plate 11. When the side camera 1 needs to be deflected at an angle, the camera mounting plate 11 can be manually pushed to rotate around the rotation point at the corresponding angle.

[0035] The horizontal rotation component 42 includes a rotation motor (not shown in the figure). The power output shaft of the rotation motor is fixedly connected to the angle deflection component 43. The rotation motor drives the angle deflection component 43 to drive the side camera 1 to rotate synchronously, thereby adjusting the horizontal angle of the side camera 1.

[0036] The second sliding assembly 41 includes a sliding frame 411, a fixed block 412, and a cylinder. The fixed block 412 is slidably mounted on the sliding frame 411, the cylinder is fixedly mounted on the sliding frame 411, the fixed block 412 is fixedly mounted on the power output shaft of the cylinder, and a rotating motor is fixedly mounted on the fixed block 412. When the cylinder is activated, it pushes the fixed block 412 to move in the y-axis direction, thereby adjusting the horizontal position of the side camera 1 in the y-axis direction.

[0037] The first sliding component 40 includes a slider 401 and a slide rail 402. The slider 401 is slidably connected to the slide rail 402. The slide rail 402 is fixed to the positioning frame 31. The sliding frame 411 is fixed to the slider 401. When the slider 401 slides along the slide rail 402, it adjusts the horizontal position of the side camera 1 in the x-axis direction.

[0038] The tooling mechanism also includes a handle 5, which is fixed on the positioning frame 31 for easy access by the user.

[0039] The tooling mechanism is also equipped with a light source, which provides light for the side camera and the front camera.

[0040] Preferably, the front and side cameras can use 800w camera modules.

[0041] This application achieves quick and easy installation of the camera without adjustment between sewing machines of the same model through the positioning groove 311 and the limiting plate 32 of the positioning frame 31. The horizontal position and angle of the camera are adjusted by the first sliding component 40, the second sliding component 41, the horizontal rotation component 42 and the angle deflection component 43, so that the camera can meet the installation requirements of different sewing machine models. The tooling mechanism has the advantages of being compact and lightweight, and the camera field of view is ready to use immediately.

[0042] The side camera and the front camera are fixed to the tooling mechanism, with their installation positions above the sewing machine and the rotary hook installation space below the sewing machine. This installation and fixing of the side camera and the front camera meets the need for quick installation without affecting the normal installation of the rotary hook.

[0043] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort should fall within the protection scope of this utility model.

Claims

1. A tooling mechanism for a sewing machine rotary hook mounting and positioning system, the sewing machine rotary hook mounting and positioning system comprising a side camera and a front camera, characterized in that: The tooling mechanism includes a positioning structure and an adjustment structure connected to the positioning structure. The front camera is connected to the positioning structure, and the side camera is connected to the adjustment structure. The side camera adjusts its position and angle through the adjustment structure.

2. A tooling mechanism for a rotating hook mounting and positioning system for a sewing machine according to claim 1, characterized in that: The positioning structure includes a positioning frame with a positioning groove, which is fitted to the edge of the sewing machine's fixed platform.

3. A tooling mechanism for a rotating hook mounting and positioning system for a sewing machine according to claim 2, wherein: The positioning structure also includes a limiting plate, which is fixed to the positioning frame and located on the end face of the positioning groove. The limiting plate abuts against the edge end face of the fixed platform that is inserted into the positioning groove.

4. The tooling mechanism for a sewing machine rotary hook mounting and positioning system according to claim 2, characterized in that: The adjustment structure includes a first sliding component, a second sliding component, a horizontal rotation component, and an angle deflection component. The angle deflection component is connected to the side camera, the horizontal rotation component is connected to the angle deflection component, the second sliding component is connected to the horizontal rotation component, the first sliding component is connected to the second sliding component, and the first sliding component is connected to the positioning frame.

5. The tooling mechanism for a sewing machine rotary hook mounting and positioning system according to claim 2, characterized in that: It also includes a handle, which is fixed on the positioning frame.

6. The tooling mechanism for a sewing machine rotary hook mounting and positioning system according to claim 4, characterized in that: The side camera is fixed on the camera mounting plate, and the camera mounting plate is movably connected to the angle deflection component.

7. The tooling mechanism for a sewing machine rotary hook mounting and positioning system according to claim 4, characterized in that: The horizontal rotation component includes a rotation motor, and the power output shaft of the rotation motor is fixedly connected to the angle deflection component.

8. The tooling mechanism for a sewing machine rotary hook mounting and positioning system according to claim 4, characterized in that: The second sliding assembly includes a sliding frame, a fixed block, and a cylinder. The fixed block is slidably mounted on the sliding frame, the cylinder is fixedly mounted on the sliding frame, the fixed block is fixedly mounted on the power output shaft of the cylinder, and the rotating motor is fixedly mounted on the fixed block.

9. A tooling mechanism for a sewing machine rotary hook mounting and positioning system according to claim 4, characterized in that: The first sliding component includes a slider and a slide rail. The slider is slidably connected to the slide rail, the slide rail is fixed to the positioning frame, and the sliding frame is fixed to the slider.