Buttonholing machine with lining cloth feeding mechanism
By designing a substrate feeding mechanism and using a rotating motor to drive the rubber rollers and pressing components, automatic feeding of the buttonhole machine was achieved, solving the problems of wrinkles and breakage caused by uneven tension of the substrate and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU INDAL SEWING MACHINE
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
Smart Images

Figure CN224280693U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a buttonhole machine, and in particular to a buttonhole machine with a backing cloth feeding mechanism. Background Technology
[0002] For garments such as shirts and coats, buttonholes are essential where buttons are used. To prevent the fabric threads from fraying at the buttonholes, buttonholes are typically buttonholeed using a buttonhole machine. Many garment manufacturing processes require the addition of thin lining fabric at the bottom of the fabric during buttonhole installation to ensure the aesthetics and durability of the buttonhole. The lining fabric is usually moved manually on the buttonhole machine, which can lead to uneven tension on the lining fabric, causing it to wrinkle or break. This necessitates re-guiding the fabric before automatic feeding can continue, severely impacting production efficiency.
[0003] In summary, how to achieve automated feeding of substrate fabric has become an urgent problem for researchers in this field. Summary of the Invention
[0004] The technical problem to be solved by this utility model is: how to realize automatic feeding of the substrate cloth;
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] This utility model relates to a buttonhole machine with a backing fabric feeding mechanism, comprising: a worktable on which the buttonhole machine body is mounted; a conveyor plate movably disposed on the worktable; and a backing fabric feeding mechanism disposed on the conveyor plate and located at the rear end of the conveyor plate; the backing fabric feeding mechanism comprises: a support frame fixed on the conveyor plate; a rotary motor fixed on the support frame; and a rubber roller disposed at the output end of the rotary motor, with its bottom forming a gap between the backing fabric feeding roller and the top of the conveyor plate.
[0007] Furthermore, the conveyor plate is provided with pressure strips for pressing the substrate cloth.
[0008] Furthermore, a substrate roll is suspended at the bottom of the workbench, and a clamping assembly is provided on the side of the workbench and at the front end of the conveyor plate; the clamping assembly includes multiple clamping sections arranged vertically, wherein the left end of the first clamping section is connected to the left end of the upper second clamping section through a connecting section, and the right end of the first clamping section is connected to the right end of the lower third clamping section through a connecting section; the substrate roll is wound around the clamping sections in sequence, wherein the substrate fabric passes through the multiple clamping sections alternately.
[0009] Furthermore, the clamping assembly also includes a connecting section, one end of which is connected to the bottom of the worktable, and the other end is connected to the lowest clamping section.
[0010] Furthermore, limit posts are provided on both sides of the uppermost pressing section, and the side of the substrate cloth is guided by the limit posts.
[0011] Furthermore, a guide section is connected between the two limiting posts, and the substrate cloth is reversed when it passes through the guide section.
[0012] The beneficial effects of this utility model are as follows: This utility model is a buttonhole machine with a backing cloth feeding mechanism. When the buttonhole machine is working, the needle of the buttonhole machine is kept still, and the conveying plate, presser foot and backing cloth move synchronously to make a hole. After the presser foot is separated from the cloth, the rotating motor drives the rubber roller to rotate, and the backing cloth is moved backward by friction. When the next section of backing cloth and cloth are buttonholeed, the automatic feeding of the backing cloth is realized. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 Schematic diagram of the bottom structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the substrate cloth and the clamping assembly;
[0017] Figure 4 yes Figure 3 Enlarged view of point A. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0019] See Figure 1 The workbench 6 in the figure is equipped with a buttonhole machine body 1, a conveyor plate 2 is provided on the buttonhole machine body 1, a backing cloth 3 is provided on the conveyor plate 2, and the presser foot 11 on the buttonhole machine body 1 presses the backing cloth 3. A backing cloth feeding mechanism 4 is provided at the rear end of the conveyor plate 2. The backing cloth feeding mechanism 4 can move synchronously with the conveyor plate 2. The support frame 41 of the backing cloth feeding mechanism 4 is fixed on the conveyor plate 2. The rotating motor 42 is fixed to the support frame 41 and connected to a rubber roller 43. The rubber roller 43 contacts the backing cloth 3 on the conveyor plate 2.
[0020] The fabric to be buttonholeed is placed on the conveyor plate 2 and pressed onto it by the presser foot 11. A backing fabric 3 is placed between the fabric and the conveyor plate 2. When the buttonhole machine body 1 is working, the needle of the buttonhole machine body 1 remains stationary. The conveyor plate 2, presser foot 11, and backing fabric 3 move synchronously to buttonhole the fabric. After buttonholeing, the presser foot 11 is disengaged from the fabric. Since the backing fabric feeding mechanism 4 moves synchronously with the conveyor plate 2, the relative position of the backing fabric feeding mechanism 4 and the backing fabric 3 on the conveyor plate 2 does not change, that is, the rubber roller 43 is always engaged with the backing fabric 3. At this time, the rotating motor 42 drives the rubber roller 43 to rotate, and the backing fabric 3 moves backward through friction. When the next section of backing fabric 3 and the fabric buttonhole, the automatic feeding of the backing fabric is realized.
[0021] A pressure strip 5 is provided in the middle of the conveyor plate 3. The pressure strip 5 presses the substrate cloth 3 onto the conveyor plate, so that the substrate cloth 3 fits the conveyor plate 2 and avoids the substrate cloth 3 from wrinkling or bending on the upper part of the conveyor plate 2.
[0022] See Figure 1 A clamping assembly 7 is provided on the front side of the worktable; see also Figure 2 The substrate roll 8 is located at the bottom of the workbench 6. The substrate 3 on the substrate roll 8 passes through the pressing assembly 7 and is placed on the conveyor plate 2. The pressing assembly 7 provides a certain resistance to the substrate 3. This resistance is less than the friction force given to the substrate 3 by the rotation of the rubber roller 43. This ensures that the substrate 3 is taut and set on the conveyor line 2.
[0023] See Figure 3 , Figure 3 This is a diagram showing the fit between the substrate fabric 3 and the clamping assembly 7. The clamping assembly 7 includes multiple clamping sections 71. The two ends of the clamping sections 71 are connected to different clamping sections 71 through connecting sections 72. That is, the three clamping sections 71 and the two connecting sections 72 form an S-shaped structure.
[0024] In this way, the substrate cloth 3 passes through the staggered pressing section 71 in sequence, that is, it passes through the bottom of the pressing section 71, the top of the pressing section 71, the bottom of the pressing section 71, and so on. The substrate cloth 3 is reversed every time it passes through the pressing section 71, and the pressing section 71 provides resistance to the pulling of the substrate cloth 3.
[0025] See Figure 4 , Figure 4 for Figure 3 In the enlarged view at point A, limit posts 73 are provided on both sides of the pressing section 71 at the top. The substrate cloth 3 can only be led out between the two limit posts 73, which avoids the substrate cloth 3 from shifting left and right after being led out, thus preventing it from cooperating with the conveyor plate 2. A guide section 74 is provided between the two limit posts 73. The function of the guide section 74 is the same as that of the pressing section 71, providing a certain resistance to the pulling of the substrate cloth 3.
[0026] The bottom clamping section 71 extends rearward and is provided with a connecting section 75. One end of the connecting section 75 is connected to the bottom of the worktable 6, thereby realizing the connection between the clamping component 7 and the worktable 6.
[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A buttonhole machine with a backing fabric feeding mechanism, characterized in that, include: A workbench on which the buttonhole machine body is mounted; A conveyor plate, which is movably mounted on the worktable; And a substrate feeding mechanism, which is disposed on the conveyor plate and located at the rear end of the conveyor plate; The substrate feeding mechanism includes: A support frame is fixed to the conveyor plate; A rotating motor is fixed on the support frame. A rubber roller is disposed at the output end of the rotating motor, and a gap for feeding the substrate is formed between its bottom and the top of the conveyor plate.
2. A buttonhole machine with a backing fabric feeding mechanism according to claim 1, characterized in that, The conveyor plate is provided with pressure strips for pressing the substrate cloth.
3. A buttonhole machine with a backing fabric feeding mechanism according to claim 1, characterized in that, A substrate roll is suspended at the bottom of the workbench, and a clamping assembly is provided on the side of the workbench and at the front end of the conveyor plate. The clamping assembly includes multiple clamping sections arranged vertically, wherein the left end of the first clamping section is connected to the left end of the upper second clamping section via a connecting section, and the right end of the first clamping section is connected to the right end of the lower third clamping section via a connecting section. The substrate fabric roll is wound sequentially through the pressing sections, wherein the substrate fabric passes through multiple pressing sections in an alternating manner.
4. A buttonhole machine with a backing fabric feeding mechanism according to claim 3, characterized in that, The clamping assembly also includes a connecting section, one end of which is connected to the bottom of the workbench, and the other end is connected to the lowest clamping section.
5. A buttonhole machine with a backing fabric feeding mechanism according to claim 3, characterized in that, Limiting posts are provided on both sides of the uppermost pressing section, and the side of the substrate cloth is guided by the limiting posts.
6. A buttonhole machine with a backing fabric feeding mechanism according to claim 5, characterized in that, A guide section is connected between the two limiting posts, and the substrate cloth is reversed when it passes through the guide section.