Presser bar frame structure for embroidery machine

Abstract

The utility model relates to a kind of cloth pressing clamping frame structure applied to embroidery machine, belongs to embroidery machine technical field, including embroidery machine frame, the embroidery machine frame is equipped with clamping frame, the upper end of the clamping frame is equipped with several rotating arms with the pivot type insertion of embroidery machine frame, the side of the clamping frame is equipped with air pipe, the air pipe is equipped with air pipe fixed terminal with air pipe and clamping frame intercardiac embedding fixed, the clamping frame is equipped with a pair of extension and the pressing plate of clamping frame lower end.With the characteristics of simple structure, convenient operation and good running stability. Through optimization structure to improve the stability of cloth fixed, convenient operation and the reliability of overall structure. Realize the perfect combination of efficient automation, convenient operation, cloth friendly and reliable operation, significantly improve the overall performance of embroidery machine and embroidery quality.

Description

Technical Field

[0001] This utility model relates to the field of embroidery machine technology, specifically to a fabric clamping frame structure used in embroidery machines. Background Technology

[0002] In the field of embroidery machines, whether it's traditional hand embroidery or modern high-speed computer embroidery, securing the fabric firmly, flatly, and without damage to the embroidery frame (or clamp) is the primary prerequisite for ensuring embroidery accuracy, pattern alignment, and final product quality. Traditional fabric securing methods and their drawbacks are as follows: 1. Manual mechanical clamps (spring clamps, pressure strips) are the most traditional and common method. Their working principle is usually to manually press the edge of the fabric into the concave groove of the embroidery frame using spring steel sheets or convex pressure strips, relying on the elastic deformation force of the material to clamp the fabric.

[0003] Low efficiency and high labor intensity: For large-area embroidery products (such as duvet covers), manual installation and removal of fabric can take more than 5 minutes each time. For multi-head embroidery machines, the accumulated downtime is considerable, seriously affecting overall production efficiency.

[0004] Uneven and unreliable clamping force: The elasticity of the spring clip will decrease due to metal fatigue after repeated use, resulting in inconsistent clamping force. During the embroidery process, the fabric is under tension due to the repeated pulling of the needle, which can easily cause it to slip out of the clamping groove, resulting in pattern misalignment, poor overlap, or even directly leading to product scrap.

[0005] Easily damages fabrics: The edges of spring clips or pressure strips are usually quite sharp. During clamping and unclamping, they can easily snag, tear, or damage the fabric. This is especially true for delicate fabrics such as silk, tulle, and lace, where the risk of damage is even higher, directly leading to a decrease in the yield of finished products.

[0006] Poor adaptability: The single mechanical structure is difficult to adapt to various fabrics with huge differences in thickness and material. It cannot clamp thick materials tightly, and it is easy to damage or cause permanent indentations to thin materials.

[0007] Second, improved mechanical clamps employ fabric clamps with A-shaped grippers or arc-shaped pressure heads to increase contact area and stability, or use magnetic assistance to enhance fixing force. While these improvements alleviate some problems to a certain extent, they essentially remain manual operation and purely mechanical fixing modes, and have not yet achieved a fundamental breakthrough in terms of automation, fixing reliability, and applicability to various fabrics. Summary of the Invention

[0008] This invention addresses the shortcomings of existing technologies by providing a fabric clamping frame structure for embroidery machines. This structure is characterized by its simplicity, ease of operation, and high stability. Optimized structure enhances fabric fixation stability, ease of operation, and overall structural reliability.

[0009] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions: A fabric clamping frame structure for use in an embroidery machine includes an embroidery machine frame, a clamping frame on the embroidery machine frame, a plurality of rotating arms that are pivotally connected to the embroidery machine frame at the upper end of the clamping frame, an air pipe on one side of the clamping frame, an air pipe fixing terminal that is engaged and fixed between the air pipe and the clamping frame, and a pair of pressure plates extending from the lower end of the clamping frame inside the clamping frame.

[0010] Preferably, a number of rivets are provided between the pressure plate and the clamping frame, and the pressure plate includes an L-shaped plate that is fixed to the clamping frame by rivets.

[0011] Preferably, the front end of the L-shaped plate is provided with an arc-shaped folded edge that is integrated with the L-shaped plate.

[0012] Preferably, the clamping frame has an equilateral trapezoidal cross-section that is wider at the top and narrower at the bottom, and the lower end of the clamping frame is open.

[0013] Preferably, the rotating arm includes a pivot connecting flange, and a rotating rod that is riveted to the clamping frame is provided between the pivot connecting flange and the clamping frame.

[0014] Preferably, the trachea fixing terminal includes a C-shaped locking block for locking the trachea, and the C-shaped locking block and the clamping frame are provided with a connecting rod that is riveted to the clamping frame.

[0015] This invention can achieve the following effects: This invention provides a fabric clamping frame structure for embroidery machines, which, compared with existing technologies, features a simple structure, convenient operation, and good operational stability. By optimizing the structure, it improves the stability of fabric fixation, ease of operation, and overall structural reliability. It achieves a perfect combination of high efficiency automation, convenient operation, fabric compatibility, and reliable operation, significantly improving the overall performance of the embroidery machine and the quality of the embroidery.

[0016] Pneumatic fabric pressing system: It achieves automated fabric pressing through air pipes and pressure plates, replacing traditional manual or spring clamping.

[0017] Optimized clamping frame and pressure plate structure: The clamping frame adopts a trapezoidal design that is wider at the top and narrower at the bottom, and the pressure plate has a rounded edge at the front end. The two work together to better fix and protect the fabric.

[0018] Modular and reliable connection method: The rotating arm, air pipe fixing terminal and other components are all fixed to the clamp frame by riveting, which makes the structure stable and easy to produce and maintain. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a bottom view of the structure of this utility model.

[0021] Figure 3 This is a side view of the structure of this utility model.

[0022] Figure 4 This is a side view of the trachea fixing terminal in this utility model.

[0023] Figure 5 This is a front view structural diagram of the trachea fixing terminal in this utility model.

[0024] In the diagram: 1. Clamping frame; 2. Rotating arm; 3. Pressure plate; 4. Air pipe; 5. Air pipe fixing terminal; 6. Rivet; 7. Arc-shaped folded edge; 8. L-shaped plate; 9. Rotating rod; 10. Rotating shaft connecting folded edge; 11. C-shaped clip; 12. Connecting rod. Detailed Implementation

[0025] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0026] Example: Figure 1-5 As shown, a fabric clamping frame structure for an embroidery machine includes an embroidery machine frame with a clamping frame 1 on it. The clamping frame 1 has an equilateral trapezoidal cross-section that is wider at the top and narrower at the bottom, with an open bottom. A pair of symmetrically distributed rotating arms 2 are provided at the upper end of the clamping frame 1 and are pivotally connected to the embroidery machine frame. Each rotating arm 2 includes a pivot connecting flange 10, and a rotating rod 9, riveted to the clamping frame 1, is provided between the pivot connecting flange 10 and the clamping frame 1. An air pipe 4 is provided on one side of the clamping frame 1, and an air pipe fixing terminal 5 is provided between the air pipe 4 and the clamping frame 1 to engage and fix the air pipe 4. The air pipe fixing terminal 5 includes a C-shaped locking block 11 for engaging the air pipe 4, and a connecting rod 12, riveted to the clamping frame 1, is provided between the C-shaped locking block 11 and the clamping frame 1. The clamping frame 1 is provided with a pair of pressure plates 3 extending from the lower end of the clamping frame 1. There are 6 rivets 6 between the pressure plates 3 and the clamping frame 1. The pressure plates 3 include an L-shaped plate 8 fixed to the clamping frame 1 by the rivets 6. The front end of the L-shaped plate 8 is provided with an arc-shaped folded edge 7 that is integrated with the L-shaped plate 8.

[0027] In summary, this fabric clamping frame structure used in embroidery machines features simple structure, convenient operation, and good operational stability. Optimizing the structure improves the stability of fabric fixation, ease of operation, and overall structural reliability.

[0028] High efficiency and automation: By introducing a pneumatic system consisting of air pipe 4 and pressure plate 3, air pipe 4 is connected to the suction pump on the side of clamping frame 1. This achieves automated pressing and releasing of the fabric, greatly improving the working efficiency of the embroidery machine and reducing manual intervention.

[0029] Ergonomics and fabric friendliness: Trapezoidal clamp 1: The design, which is wider at the top and narrower at the bottom, resembles a funnel, greatly simplifying the process of aligning and inserting the fabric and reducing the difficulty of operation.

[0030] Rounded edge 7: The rounded edge treatment at the front end of the pressure plate avoids sharp edges from snagging or damaging the fabric, and is especially suitable for delicate fabrics such as silk and tulle.

[0031] Extremely high structural stability: Multiple riveting connections: The rotating arm 2, the air pipe fixing terminal 5, and the pressure plate 3 are all fixed to the clamping frame 1 by rivets 6. Riveting is a high-strength, vibration-resistant connection method that ensures that the connections of each component remain firm and reliable and not easily loosened even under the high-speed and long-term operation of the embroidery machine.

[0032] Integrated design: The L-shaped plate 8 and the arc-shaped edge 7 are integrated, which enhances the overall strength and durability of the pressure plate.

[0033] Modular design and ease of maintenance: C-shaped locking block 11: The trachea fixing terminal adopts a C-shaped locking block, which makes the installation and removal of the trachea very quick and easy, and facilitates maintenance and replacement.

[0034] Symmetrical rotating arm 2: A pair of symmetrical rotating arms ensures the balance and stability of the clamping frame when installed on the machine.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A fabric clamping frame structure for use in an embroidery machine, comprising an embroidery machine frame, characterized in that: The embroidery machine frame is provided with a clamping frame (1). The clamping frame (1) has an equilateral trapezoidal cross-section that is wider at the top and narrower at the bottom. The lower end of the clamping frame (1) is open. The upper end of the clamping frame (1) is provided with several rotating arms (2) that are pivotally connected to the embroidery machine frame. One side of the clamping frame (1) is provided with an air pipe (4). The air pipe (4) and the clamping frame (1) are provided with an air pipe fixing terminal (5) that is locked and fixed to the air pipe (4). The clamping frame (1) is provided with a pair of pressure plates (3) that extend out of the lower end of the clamping frame (1). The pressure plate (3) and the clamping frame (1) are provided with several rivets (6). The pressure plate (3) includes an L-shaped plate (8) that is fixed to the clamping frame (1) by rivets (6). The air pipe fixing terminal (5) includes a C-shaped locking block (11) for locking the air pipe (4). The C-shaped locking block (11) and the clamping frame (1) are provided with a connecting rod (12) that is riveted to the clamping frame (1).

2. The fabric clamping frame structure for an embroidery machine according to claim 1, characterized in that: The front end of the L-shaped plate (8) is provided with an arc-shaped fold (7) that is integrated with the L-shaped plate (8).

3. The fabric clamping frame structure for an embroidery machine according to claim 1, characterized in that: The rotating arm (2) includes a pivot connecting flange (10), and a rotating rod (9) is provided between the pivot connecting flange (10) and the clamping frame (1) and is riveted to the clamping frame (1).

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