A snap-fit ​​adjustable fabric clip assembly and an embroidery frame for an embroidery machine

Abstract

This utility model discloses a clamp-type adjustable fabric clamp assembly and an embroidery frame for an embroidery machine. The fabric clamp assembly adopts a manual operation structure, solving the problem of inconvenience in manual operation. The fabric clamp assembly includes a fabric clamp body, a limiting member, and a fabric clamping handle. The fabric clamp body has a clamping groove that engages with the fabric clamping protrusion. The clamping groove has a first clamping edge and a second clamping edge corresponding to the two sides of the width of the fabric clamping protrusion. The limiting member is connected to the fabric clamp body and has a limiting structure. The fabric clamping handle includes a hinge part, a limiting part, and a handle part. The hinge part is hinged to the second clamping edge. The fabric clamping handle has a clamping state in which the second clamping edge engages with the second side of the width of the fabric clamping protrusion to clamp the fabric, and a releasing state in which the second clamping edge moves away from the second side of the width of the fabric clamping protrusion. The handle part is used for operation, causing the hinge part to drive the second clamping edge to move, thereby switching the fabric clamping handle between the clamping state and the releasing state. The limiting part engages with the limiting structure in the clamping state and the releasing state.

Description

Technical Field

[0001] This utility model belongs to the technical field of embroidery equipment, specifically relating to embroidery frames for embroidery machines. Background Technology

[0002] Currently, many embroidery machine frames on the market use a manual fabric clamping mechanism. The fabric clamp is a single sheet metal piece used to hold the fabric against a clamping ridge. It has a clamping groove that engages with the clamping ridge. When the clamping groove opens, it engages with the clamping ridge, and the groove closes due to its own elasticity, thus clamping the fabric securely. However, installing the fabric clamp requires considerable force; otherwise, it is difficult to engage with the clamping ridge. Because it requires significant force, operation is inconvenient, especially since many embroidery machine operators are women, who frequently encounter problems installing and removing the fabric clamp. Another approach employs a pneumatic structure, such as patent CN210481712U, which discloses an embroidery machine including an embroidery table, an embroidery frame, a fixed frame, a pressure plate, and a cylinder. The embroidery frame is mounted on the embroidery table. The fixed frame includes a long side frame and a wide side frame. The wide side frame has several fabric clamping strips distributed along its length, each clamping a fabric clip for securing the wide edge of the fabric. The pressure plate is hinged to the long side frame, and the cylinder is mounted on the long side frame. A connecting rod is hinged to the piston rod end of the cylinder, and the other end of the connecting rod is hinged to the pressure plate. However, the pneumatic fabric clamps require multiple cylinders and corresponding cylinder drive structures, making the structure more complex and costly. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a clamp-adjustable fabric clip assembly and an embroidery frame for an embroidery machine, which adopts a manual structure operation and solves the problem of the inconvenience of manual operation.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A snap-fit ​​adjustable fabric clamp assembly for clamping fabric onto a fabric clamping protrusion includes a fabric clamp body, a limiting member, and a fabric clamping handle. The fabric clamp body has a clamping groove that engages with the fabric clamping protrusion. The clamping groove has a first clamping edge and a second clamping edge corresponding to clamping both sides of the width of the fabric clamping protrusion. The limiting member is connected to the fabric clamp body and has a limiting structure on the outside of the second clamping edge. The fabric clamping handle includes a hinge portion, a limiting portion, and a handle portion. The hinge portion is hinged to the second clamping edge. The fabric clamping handle has a clamping state in which the second clamping edge engages with the second side of the width of the fabric clamping protrusion to clamp the fabric, and a releasing state in which the second clamping edge moves away from the second side of the width of the fabric clamping protrusion. The handle portion is used for operation, causing the hinge portion to move the second clamping edge, thereby switching the fabric clamping handle between the clamping state and the releasing state. The limiting portion engages with the limiting structure in both the clamping state and the releasing state.

[0006] Preferably, the limiting structure includes a vertically extending limiting edge and a limiting groove at the bottom of the limiting edge. The limiting part engages with the limiting groove in the clamped state and engages with the middle of the limiting edge in the released state.

[0007] Preferably, the limiting part is a V-shaped bent structure, and the two sides of the V-shaped opening are respectively connected to the handle part and the hinge part.

[0008] Preferably, the limiting member has a fixed edge perpendicular to the limiting edge, and the top of the fabric clip body has a second side extension section extending in the second direction and beyond the second clip edge. The fixed edge is located above the second side extension section and is fixed by a fixing screw.

[0009] Preferably, the limiting member is provided with an adjustment hole for connection with the fixing screw, and the second side extension is provided with a threaded hole for connection with the fixing screw. The relative position between the limiting member and the fabric clamp body is adjusted by the cooperation of the fixing screw and the adjustment hole to accommodate fabrics of different thicknesses.

[0010] Preferably, the limiting member is a sheet metal part, and the limiting groove is formed by an arc-shaped bend at the free end of the limiting member.

[0011] Preferably, the fixed side and the second side extension are provided with through grooves that pass through vertically at intervals along the length direction. The handle part is an L-shaped bent structure, including a first side and a second side. The second side is located above the limiting member and extends in a second direction. The first side is provided with a plurality of intervals along the length direction. The intervals pass downward through the through grooves and connect with the limiting member.

[0012] Preferably, the hinge portions are spaced apart along the length direction and are correspondingly arranged with the spacers. The hinge portion is provided with a first hinge sleeve, and the bottom of the second clamping edge is provided with a second hinge sleeve. The second hinge sleeve is provided with a spacer groove. The first hinge sleeve extends into the spacer groove and is axially aligned with the second hinge sleeve. The first hinge sleeve and the second hinge sleeve are connected by a pin to achieve hinge.

[0013] Preferably, the fabric clamping handle is a sheet metal part.

[0014] In addition, an embroidery frame for an embroidery machine is also provided, including the aforementioned fabric clip assembly.

[0015] This utility model adopts the above-mentioned technical solution and has the following technical effects: The fabric clamping handle includes a hinge part, a limiting part, and a handle part. The hinge part is hinged to the second clamping edge. The fabric clamping handle has a clamping state in which the second clamping edge cooperates with the second side of the width of the fabric clamping ridge to clamp the fabric, and a releasing state in which the second clamping edge moves away from the second side of the width of the fabric clamping ridge. The handle part is used for operation, causing the hinge part to drive the second clamping edge to move, thereby switching the fabric clamping handle between the clamping state and the releasing state. The limiting part cooperates with the limiting structure in the clamping state and the releasing state. Therefore, the fabric clamping handle can be rotated to cause the hinge part to drive the second clamping edge to move, thereby switching the fabric clamping handle between the clamping state and the releasing state. Compared with the operation of traditional fabric clamps, the operation is more labor-saving.

[0016] To facilitate the operation of the fabric clamping handle, the hinged part of the fabric clamping handle is hinged to the second clamping edge, while other parts are not fixed. At the same time, a limiting component is set to limit the fabric clamping handle. The limiting component has a limiting structure. The limiting part of the fabric clamping handle cooperates with the limiting structure in the clamping and releasing states, thereby maintaining the clamping and releasing states and facilitating the clamping and removal of the fabric.

[0017] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0018] The utility model will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the fabric clip assembly in this utility model;

[0020] Figure 2 yes Figure 1 Enlarged view at point I;

[0021] Figure 3 This is a schematic diagram of the fabric clip assembly in the released state in this utility model;

[0022] Figure 4 yes Figure 3 Mid-section structural diagram;

[0023] Figure 5 yes Figure 3 Mid-section structural diagram;

[0024] Figure 6 This is a schematic diagram of the fabric clamping assembly in the fabric clamping state of this utility model;

[0025] Figure 7 yes Figure 6 Mid-section structural diagram;

[0026] Reference numerals: embroidery frame 100, fabric clamping strip 11, protrusion 111, recess 112, fabric 12, fabric clamp assembly 200, fabric clamp body 21, first clamping edge 211, second clamping edge 212, upper side edge 2121, lower side edge 2122, clamping groove 213, side pressing edge 214, second side extension 215, clamping part 216, fabric clamping handle 22, first side edge 221, second side edge 222, limiting part 223, hinge part 224, limiting member 23, fixing edge 231, limiting edge 232, adjusting hole 233, limiting groove 234, fixing screw 24, through groove 25. Detailed Implementation

[0027] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0028] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0029] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," "rear," "X-direction," and "Y-direction," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0033] like Figures 1 to 7 As shown, this embodiment provides a snap-fit ​​adjustable fabric clamp assembly for clamping fabric 12 onto a fabric clamping protrusion 11, which is located on an embroidery frame 100. As shown in the figure, after establishing a planar coordinate system, the length direction of the fabric clamp assembly 200 is the Y direction, and the width direction is the X direction. The X- direction is defined as the first direction, and the X+ direction as the second direction. The fabric clamp assembly includes a fabric clamp body 21, a limiting member 23, and a fabric clamping handle 22. The fabric clamp body 21 has a clamping groove 213 that engages with the fabric clamping protrusion. The clamping groove 213 has a first clamping edge 211 and a second clamping edge 212 corresponding to clamping both sides of the width of the fabric clamping protrusion 11. The limiting member 23 is connected to the fabric clamp body 21 and has a limiting structure on the outside of the second clamping edge. The fabric clamping handle 22 includes a hinge portion 224, a limiting portion 223, and a handle portion. The hinge portion 224 is hinged to the second clamping edge 212. The fabric clamping handle 22 has a clamping state in which the second clamping edge engages with the second side of the width of the clamping strip to clamp the fabric, and a releasing state in which the second clamping edge moves away from the second side of the width of the clamping strip. The handle portion is used for operation, causing the hinge portion to move the second clamping edge, thereby switching the fabric clamping handle between the clamping state and the releasing state. The limiting portion engages with a limiting structure in the clamping state and the releasing state to maintain the clamping state and the releasing state.

[0034] The above technical solution allows the hinged part to move the second clamping edge by rotating the fabric clamping handle, thereby switching the fabric clamping handle between the clamping and releasing states. Compared with the operation of traditional fabric clamps, the operation is more labor-saving.

[0035] To facilitate the operation of the fabric clamping handle, the hinged part of the fabric clamping handle is hinged to the second clamping edge, while other parts are not fixed. At the same time, a limiting component is set to limit the fabric clamping handle. The limiting component has a limiting structure. The limiting part of the fabric clamping handle cooperates with the limiting structure in the clamping and releasing states, thereby maintaining the clamping and releasing states and facilitating the clamping and removal of the fabric.

[0036] like Figures 3 to 7 As shown, the limiting structure includes a vertically extending limiting edge 232 and a limiting groove 234 located at the bottom of the limiting edge. The limiting part 223 engages with the limiting groove 234 in the fabric clamping state, and in the released state, it engages with the middle of the limiting edge. Relatively speaking, the position of the fabric clamping handle needs to be firmly maintained in the fabric clamping state to ensure the clamping force of the second clamping edge on the fabric is maintained. Therefore, the limiting part engages with the limiting groove in the fabric clamping state, and the limiting edge has considerable elasticity, making it difficult for the limiting part to disengage from the limiting groove; only by applying sufficient external force can the limiting be released. When the fabric clamping handle is turned upward, the limiting part slides upward along the limiting edge, and the hinge part moves in the second direction as a whole, causing the clamping part of the second clamping edge to move in the second direction. Finally, the limiting part and the middle of the limiting edge are locked in a limiting engagement. The position of the fabric clamping handle is maintained mainly by the elasticity of the limiting edge and the friction between the limiting part and the limiting edge, which facilitates the downward rotation of the handle to switch to the fabric clamping state. The switching process is unobstructed. Of course, a limiting groove can also be provided accordingly.

[0037] In some embodiments, the limiting part 223 is a V-shaped bent structure and is connected to the handle part and the hinge part respectively.

[0038] Specifically, the limiting member 23 has a fixed edge 231 perpendicular to the limiting edge, the limiting member 23 is in an L-shaped structure, the top of the fabric clip body has a second side extension section 215 extending in the second direction and beyond the second clip edge, the fixed edge 231 is located above the second side extension section and is fixed by a fixing screw 24.

[0039] Because fabric thickness varies, to accommodate different fabric thicknesses, the fixed edge of the limiting member is provided with an adjustment hole 233 connected to a fixing screw, and the second side extension 215 is provided with a threaded hole connected to a fixing screw. The relative position between the limiting member and the fabric clamp body is adjusted by the cooperation of the fixing screw and the adjustment hole to accommodate fabrics of different thicknesses. After the fixing screw is loosened, the relative position between the limiting member and the fabric clamp body can be adjusted, and the relative position between the limiting member and the fabric clamp handle changes. Thus, the position where the limiting member limits the fabric clamp handle also changes, and the distance the clamping part of the second clamping edge moves changes when the fabric clamp handle is operated, thereby accommodating fabrics of different thicknesses. Moving in the second direction can accommodate thicker fabrics, and moving in the first direction can accommodate thinner fabrics. After adjustment, the fixing screw is tightened.

[0040] Preferably, the fabric clamping handle 22 is a sheet metal part. The limiting member 23 is a sheet metal part, and the limiting groove 234 is formed by an arc-shaped bend at the free end of the limiting member. Sheet metal parts have the characteristics of light weight, high strength, low cost, good mass production performance, and good elasticity.

[0041] To provide operating space for the fabric clamping handle, the fixed side 231 and the second side extension 215 are provided with through grooves 25 that pass through vertically at intervals along the length direction. The handle part is an L-shaped bent structure, including a first side 221 and a second side 222. The second side 222 is located above the limiting member 23 and extends in the second direction to facilitate the up and down movement of the fabric clamping handle. The first side 221 is provided with several intervals along the length direction. The intervals pass downward through the through grooves 25 and connect with the limiting member 223.

[0042] Furthermore, the hinge portion 224 is spaced apart along the length direction and is correspondingly arranged with the spacer portion and connected with the limiting portion 223. The hinge portion 224 is provided with a first hinge sleeve, and the bottom of the second clamping edge is provided with a second hinge sleeve. The second hinge sleeve is provided with a spacer groove. The first hinge sleeve extends into the spacer groove and is axially aligned with the second hinge sleeve. A pin is connected between the two to realize the hinge.

[0043] Specifically, the second clamping edge 212 has a V-shaped bend, which includes an upper side edge 2121 and a lower side edge 2122. The lower side edge extends obliquely downwards towards the second side of the width of the clamping strip. In this way, the lower side edge has greater elasticity and a tendency to clamp the fabric, thereby enhancing the clamping force. When the clamping handle is released, it pulls the bottom end of the second clamping edge to release the fabric.

[0044] Combination Figure 1As shown and referring to existing structures, the fabric clamping strip 11 includes an arc-shaped protrusion 111 and recesses 112 on both sides of the bottom. The recesses are arc-shaped and concave. The free ends of the first and second clamping edges are provided with clamping portions 216 that engage with the recesses. Furthermore, the free ends of the first and second clamping edges are provided with arc-shaped rolled edges as clamping portions. In addition, the fabric clamp body is provided with a side pressing edge 214 on the first side of the first clamping edge.

[0045] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A clamping and adjusting fabric clamp assembly for clamping fabric onto a clamping protrusion, characterized in that, The device includes a fabric clamp body, a limiting member, and a fabric clamping handle. The fabric clamp body has a clamping groove that engages with a fabric clamping protrusion. The clamping groove has a first clamping edge and a second clamping edge that clamp the fabric clamping protrusion on both sides of its width. The limiting member is connected to the fabric clamp body and has a limiting structure on the outside of the second clamping edge. The fabric clamping handle includes a hinge part, a limiting part, and a handle part. The hinge part is hinged to the second clamping edge. The fabric clamping handle has a clamping state in which the second clamping edge engages with the second side of the fabric clamping protrusion to clamp the fabric, and a releasing state in which the second clamping edge moves away from the second side of the fabric clamping protrusion's width. The handle part is used for operation, causing the hinge part to move the second clamping edge, thereby switching the fabric clamping handle between the clamping state and the releasing state. The limiting part engages with the limiting structure in both the clamping state and the releasing state.

2. The adjustable fabric clip assembly according to claim 1, characterized in that, The limiting structure includes a vertically extending limiting edge and a limiting groove at the bottom of the limiting edge. The limiting part engages with the limiting groove in the clamped state and engages with the middle of the limiting edge in the released state.

3. A snap-fit ​​adjustable fabric clip assembly according to claim 2, characterized in that, The limiting part is a V-shaped bent structure, and the two sides of the V-shaped opening are connected to the handle part and the hinge part, respectively.

4. A bayonet-adjustable fabric clip assembly according to claim 2, characterized in that, The limiting member has a fixed edge perpendicular to the limiting edge, and the top of the fabric clip body has a second side extension section extending in the second direction and beyond the second clip edge. The fixed edge is located above the second side extension section and is fixed by a fixing screw.

5. A snap-fit ​​adjustable fabric clip assembly according to claim 4, characterized in that, The limiting member is provided with an adjustment hole for connection with the fixing screw, and the second side extension is provided with a threaded hole for connection with the fixing screw. The relative position between the limiting member and the fabric clamp body is adjusted by the cooperation of the fixing screw and the adjustment hole to accommodate fabrics of different thicknesses.

6. A snap-fit ​​adjustable fabric clip assembly according to claim 5, characterized in that, The limiting component is a sheet metal part, and the limiting groove is formed by the arc bending of the free end of the limiting component.

7. A snap-fit ​​adjustable fabric clip assembly according to claim 5, characterized in that, The fixed side and the second side extension are provided with through grooves that pass through vertically at intervals along the length direction. The handle part is an L-shaped bent structure, including a first side and a second side. The second side is located above the limiting member and extends in the second direction. The first side is provided with a number of intervals along the length direction. The intervals pass downward through the through grooves and connect with the limiting member.

8. A snap-fit ​​adjustable fabric clip assembly according to claim 7, characterized in that, The hinged parts are spaced apart along the length direction and are corresponding to the spaced parts. The hinged parts are provided with a first hinged sleeve, and the bottom of the second clamping edge is provided with a second hinged sleeve. The second hinged sleeve is provided with a spacer groove. The first hinged sleeve extends into the spacer groove and is axially aligned with the second hinged sleeve. The first hinged sleeve and the second hinged sleeve are connected by a pin to realize the hinge.

9. A snap-fit ​​adjustable fabric clip assembly according to claim 1, characterized in that, The fabric clamping handle is a sheet metal part.

10. An embroidery frame for an embroidery machine, characterized in that, Includes the fabric clip assembly as described in any one of claims 1 to 9.

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