Waist sewing expansion support device of multi-needle machine

Abstract

The utility model discloses a multi-needle machine waist sewing expansion support device which comprises a supporting platform, an expansion mechanism and a positioning mechanism, the expansion mechanism comprises a synchronous belt conveying assembly and two clamping seats, and the back faces of the two clamping seats are fixedly connected with a first vertical frame and a second vertical frame respectively. The front face of the first vertical frame and the front face of the second vertical frame are each vertically provided with two waist pulling accessories, the positioning mechanism comprises a linear guide rail, a light sensing piece and two photoelectric sensors, two sliding blocks are slidably assembled on the linear guide rail, and locking screw rods vertically penetrate through the back faces of the two sliding blocks in a threaded mode. The utility model relates to the technical field of sewing machinery. According to the waist sewing expansion support device of the multi-needle machine, the expansion mechanism is arranged, the synchronous belt conveying assembly replaces a traditional air cylinder to serve as a driving part, the positioning mechanism is matched, the waistline of a sewing material can be flexibly expanded and supported, and accurate adjustment can be conducted according to actual requirements.

Description

Technical Field

[0001] This utility model relates to the field of sewing machinery technology, and in particular to a multi-needle machine waist sewing extension support device. Background Technology

[0002] In the waistband sewing process of multi-needle sewing machines, the extension bracket is mainly used to expand and support the sewing material around the waist, ensuring that the material remains stable during the sewing process, thereby improving sewing accuracy and efficiency. With the development of sewing technology, the waistband extension bracket has gradually evolved from a traditional mechanical structure to a more intelligent device. Among them, the cylinder-driven waistband extension bracket is widely used because of its simple structure and convenient operation. This bracket achieves the expansion and support of the material through the extension and retraction of the cylinder.

[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art:

[0004] In practical applications, the expansion range of the cylinder-type extension bracket is limited by the stroke of the cylinder. Once the stroke of the cylinder is determined, the expansion capacity of the extension bracket cannot be flexibly adjusted. This means that when faced with different expansion requirements for the waist of the sewing material, operators often cannot accurately control the expansion range according to the actual needs, thus affecting the sewing effect. In addition, the fixed stroke of the cylinder also limits the applicability of the extension bracket in different sewing scenarios, which greatly reduces the flexibility of the entire equipment.

[0005] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model proposes a multi-needle machine waist sewing extension support device, which solves the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:

[0008] A multi-needle machine waist sewing extension support device includes a support platform, an extension mechanism fixedly installed on the top of the support platform, and a positioning mechanism assembled behind the extension mechanism.

[0009] The extension mechanism includes a synchronous belt conveyor assembly and two mounting brackets fixedly installed on the upper left and lower right sides of the synchronous belt of the synchronous belt conveyor assembly, respectively. A first upright and a second upright, both arranged vertically, are fixedly connected to the back of the two mounting brackets. Two waist-pulling accessories are vertically mounted on the front of each of the first and second uprights, and the four waist-pulling accessories are arranged in a rectangular array.

[0010] The positioning mechanism includes a linear guide rail, a photosensitive sheet fixedly connected to the bottom of the back of the second stand, and two photoelectric sensors. Two sliders that can be fixedly installed on the linear guide rail are slidably mounted on the linear guide rail. The back of each slider has a locking screw that can be used for positioning.

[0011] Preferably, the top and bottom of both the first and second uprights are provided with strip-shaped holes and positioning holes for the installation of the waist-stretching accessories. The strip-shaped holes and positioning holes facilitate the assembly and adjustment of the extension bracket, further enhancing the flexibility of the waist-stretching accessories.

[0012] Preferably, the waist-stretching accessory consists of a roller and a nylon sleeve fitted over the roller. The specific structure of the waist-stretching accessory, consisting of a roller and a nylon sleeve fitted over the roller, ensures smoothness during waist stretching, enhances wear resistance, and extends service life.

[0013] Preferably, it also includes a limiting retaining ring coaxially sleeved on the outside of the nylon sleeve. A screw is threaded through the outer wall of the limiting retaining ring for positioning. A U-shaped groove is formed on the outer wall of the nylon sleeve near the roller mounting end, allowing the screw to pass through and be accommodated. Furthermore, to further stabilize the support effect of the waist-stretching accessory and improve its usability, a limiting retaining ring coaxially sleeved on the outside of the nylon sleeve is designed and positioned by a screw. The screw can pass through the U-shaped groove on the nylon sleeve for fixation.

[0014] Preferably, the device also includes an auxiliary support mounted at the front of the expansion mechanism. The auxiliary support consists of two fixed frames, two sliding rods fixedly installed between the two fixed frames in a parallel, vertical arrangement, and two guide sleeves slidably fitted onto the two sliding rods. The two guide sleeves are respectively fixedly connected to the front of the two card holders. The auxiliary support, mounted at the front of the expansion mechanism, provides additional support and stability. The auxiliary support ensures the stability of the expansion mechanism during movement and facilitates adjustment and maintenance of the expansion mechanism.

[0015] The beneficial effects of this utility model are:

[0016] The technical solution of this utility model, by setting an extension mechanism and replacing the traditional cylinder with a synchronous belt conveyor component as the driving component, and in conjunction with the positioning mechanism, can realize flexible extension support for the waist of the sewing material. It can be precisely adjusted according to actual needs, effectively overcoming the problem of limited extension range of the cylinder-type extension bracket, and greatly improving the extension flexibility and applicability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the extension mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the positioning mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first and second uprights of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the waist-stretching accessory of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the auxiliary support of this utility model;

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Supporting platform;

[0025] 200. Extended mechanism;

[0026] 210. Synchronous belt conveyor assembly; 220. Card holder; 230. First upright; 240. Second upright; 250. Waist support accessory; 260. Strip hole; 270. Positioning hole;

[0027] 2510, Roller; 2520, Nylon sleeve; 2530, Limiting ring; 2540, Screw; 2550, U-shaped groove;

[0028] 300. Positioning mechanism;

[0029] 310. Linear guide rail; 320. Photosensitive film; 330. Photoelectric sensor; 340. Slider; 350. Locking screw;

[0030] 400. Auxiliary support;

[0031] 410. Fixing bracket; 420. Slide rod; 430. Guide sleeve. Detailed Implementation

[0032] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-6This utility model provides a technical solution: a multi-needle machine waist sewing extension bracket device, including a support platform 100 and an extension mechanism 200 fixedly installed on the top of the support platform 100, and a positioning mechanism 300 assembled behind the extension mechanism 200. The extension mechanism 200 includes a synchronous belt conveyor assembly 210 and two card holders 220 respectively fixedly installed on the upper left and lower right sides of the synchronous belt of the synchronous belt conveyor assembly 210. The back of the two card holders 220 are respectively fixedly connected to a first upright 230 and a second upright 230 arranged in a vertical direction. The front of the support frame 240, the first support frame 230 and the second support frame 240 are each vertically mounted with two waist-pulling accessories 250. The four waist-pulling accessories 250 are distributed in a rectangular array. The positioning mechanism 300 includes a linear guide rail 310, a photosensitive sheet 320 fixedly connected to the bottom of the back of the second support frame 240, and two photoelectric sensors 330. Two sliders 340 are slidably mounted on the linear guide rail 310, which can be used to fix the two photoelectric sensors 330 respectively. The back of the two sliders 340 are vertically threaded with locking screws 350 for positioning.

[0034] Based on the above structural design, the multi-needle machine waistband sewing extension support device consists of a support platform 100, an extension mechanism 200, and a positioning mechanism 300. The extension mechanism 200 is the core component of the device. When driven by the synchronous belt drive assembly, the synchronous belt can drive the two card holders 220 and their fixed structures to move synchronously. The back of the card holders 220 is connected to the first upright 230 and the second upright 240, respectively. Both uprights are arranged vertically, providing an installation base for the waistband support accessories 250. The waistband support accessories 250 are key components for achieving waistband extension support for the sewing material. In this invention, two waistband support accessories 250 are vertically mounted on each upright, for a total of four. These components, arranged in a rectangular array, ensure all-around support for the material's waistline. The positioning mechanism 300 is responsible for precisely controlling the expansion range of the expansion mechanism 200. Two sliders 340 are slidably mounted on the linear guide rail 310. These two sliders 340 can be used to fix two photoelectric sensors 330, respectively. By adjusting the position of the sliders 340 on the linear guide rail 310, the distance between the photoelectric sensor 330 and the photosensitive sheet 320 can be changed, thereby achieving precise control of the expansion range of the expansion mechanism 200. When the expansion mechanism 200 moves to the set position, the photoelectric sensor 330 receives a signal from the photosensitive sheet 320, thereby triggering the control logic and synchronously transmitting... The moving conveyor assembly stops operating to halt expansion. To fix the position of the slider 340, a locking screw 350 is threaded vertically through its back. Tightening the locking screw 350 securely locks the slider 340 in place. Specifically, during operation, the operator first adjusts the position of the slider 340 in the positioning mechanism 300 to set the expansion range of the expansion mechanism 200 according to the expansion requirements of the waistband of the sewing material. After the waistband of the sewing material is fitted over the four waistband accessories 250, the synchronous belt conveyor assembly 210 is activated, causing the card holder 220 and its first and second uprights 230 to move, thereby moving the waistband accessories 250 to... The sewing material is extended and supported at the waist. During the extension process, the photoelectric sensor 330 monitors the position of the extension mechanism 200 in real time. When the set position is reached, the control logic is triggered to stop the movement of the extension mechanism 200, thereby achieving precise extension support for the waist of the sewing material. This multi-needle machine waist sewing extension bracket device, by setting the extension mechanism 200, uses the synchronous belt conveyor component 210 instead of the traditional cylinder as the driving component, and cooperates with the positioning mechanism 300 to achieve flexible extension support for the waist of the sewing material. It can be precisely adjusted according to actual needs, effectively overcoming the problem of limited extension range of cylinder-type extension brackets, and greatly improving the extension flexibility and applicability of the equipment.

[0035] Furthermore, the top and bottom of the first upright 230 and the second upright 240 are respectively provided with strip holes 260 and positioning holes 270 for the waist-pulling accessory 250 to be fitted and installed.

[0036] Furthermore, the waist-stretching accessory 250 consists of a roller 2510 and a nylon sleeve 2520 fitted over the roller 2510.

[0037] Furthermore, it also includes a limiting ring 2530 coaxially sleeved outside the nylon sleeve 2520. The outer wall of the limiting ring 2530 is threaded with a screw 2540 for positioning. The outer wall of the nylon sleeve 2520 near the mounting end of the roller 2510 is provided with a U-shaped groove 2550 for the screw 2540 to pass through and accommodate.

[0038] Furthermore, it also includes an auxiliary support 400 mounted on the front of the extension mechanism 200. The auxiliary support 400 consists of two fixed frames 410 and two slide rods 420 that are fixedly installed between the two fixed frames 410 in a parallel arrangement, and two guide sleeves 430 that are respectively slidably fitted on the two slide rods 420. The two guide sleeves 430 are respectively fixedly connected to the front of the two card seats 220.

[0039] Based on the disclosure and teachings of the above specification, 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 disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A multi-needle machine waist sewing extension support device, characterized in that: It includes a support platform (100) and an extension mechanism (200) fixedly installed on the top of the support platform (100), and a positioning mechanism (300) assembled behind the extension mechanism (200). The extension mechanism (200) includes a synchronous belt conveyor assembly (210) and two card holders (220) fixedly installed on the upper left and lower right sides of the synchronous belt of the synchronous belt conveyor assembly (210), respectively. The back of the two card holders (220) are respectively fixedly connected to a first upright (230) and a second upright (240) arranged in a vertical direction. The front of the first upright (230) and the second upright (240) are vertically equipped with two waist-pulling accessories (250), and the four waist-pulling accessories (250) are distributed in a rectangular array. The positioning mechanism (300) includes a linear guide rail (310), a photosensitive sheet (320) fixedly connected to the bottom of the back of the second stand (240), and two photoelectric sensors (330). Two sliders (340) are slidably mounted on the linear guide rail (310) for fixing the two photoelectric sensors (330) respectively. The back of each slider (340) is vertically threaded with a locking screw (350) for positioning.

2. The multi-needle machine waist sewing extension bracket device according to claim 1, characterized in that: The top and bottom of the first stand (230) and the second stand (240) are respectively provided with strip holes (260) and positioning holes (270) for the waist-pulling accessories (250) to be fitted and installed.

3. The multi-needle machine waist sewing extension support device according to claim 1, characterized in that: The waist-stretching accessory (250) consists of a roller (2510) and a nylon sleeve (2520) fitted over the roller (2510).

4. The multi-needle machine waist sewing extension support device according to claim 3, characterized in that: It also includes a limiting ring (2530) coaxially sleeved outside the nylon sleeve (2520), and a screw (2540) threaded through the outer wall of the limiting ring (2530) for positioning. A U-shaped groove (2550) is provided on the outer wall of the nylon sleeve (2520) near the mounting end of the roller (2510) for the screw (2540) to pass through and accommodate.

5. The multi-needle machine waist sewing extension bracket device according to claim 1, characterized in that: It also includes an auxiliary bracket (400) mounted on the front of the extension mechanism (200). The auxiliary bracket (400) consists of two fixed brackets (410) and two slide rods (420) that are fixedly installed between the two fixed brackets (410) in a parallel distribution, and two guide sleeves (430) that are respectively slidably fitted on the two slide rods (420). The two guide sleeves (430) are respectively fixedly connected to the front of the two card seats (220).

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