An assembled embroidery positioning clamp

Abstract

The application provides an assembled embroidery positioning clamp. In use, embroiderers first lay embroidery cloth on a frame assembly. Then, the corners of the cloth are fixed by first clamping assemblies located at the four corners. When the first clamping assemblies are installed on the frame assembly, the two arc-shaped clamping surfaces abut against each other to clamp the cloth corners. Subsequently, the operator further fixes the cloth edges by second clamping assemblies arranged at the edges. The second clamping assemblies uniformly tighten the cloth edges along the edge direction by means of a planar clamping structure. The first clamping assemblies form a wrapping clamping on the cloth corners by means of surface contact between the first arc-shaped clamping surface and the second arc-shaped clamping surface, which can significantly reduce the local pressure on the cloth corners and avoid cloth scratches, tears or deformation caused by stress concentration.

Description

Technical Field

[0001] This application relates to the field of embroidery, and more particularly to an assembled embroidery positioning clamp. Background Technology

[0002] Gold embroidery (also known as gold thread embroidery) is a traditional craft that uses metal threads (usually gold wire or gold-plated thread) for decoration. The materials are expensive and the threads are stiff, so the process requires a very high degree of stability and precision.

[0003] Because gold thread is not as soft as ordinary cotton or silk thread, it has a certain degree of stiffness and elasticity. If the fabric or gold thread shifts during the embroidery process, it can cause the pattern to become distorted or the embroidery uneven. Using clamps can firmly hold the fabric in place, keeping it flat and taut, preventing shifting or wrinkling.

[0004] Secondly, with the use of clamps for fixation, embroidery workers can focus on the embroidery itself without frequently adjusting the position of the fabric, which improves embroidery efficiency and consistency, and is especially suitable for long-term or mass production.

[0005] Existing clamps typically use rectangular clamping blocks to hold the edges or corners of the fabric. Since the edges and corners of the clamping blocks are usually sharp, they can damage the fabric during the clamping process, making the fabric very easy to scratch during the fixing process.

[0006] Secondly, during the embroidery process, the fabric needs to be stretched to a certain extent to maintain its flatness. Under this tensile stress, the sharp edges of the clamping blocks are more likely to become stress concentration points, leading to uneven stress on the fabric edges or localized tearing, further reducing the stability and durability of the embroidery. This problem is particularly noticeable with long-term, repeated use, not only affecting the craftsmanship but also potentially causing material waste. Utility Model Content

[0007] In view of this, it is necessary to provide an assembled embroidery positioning fixture to solve the above problems.

[0008] An embodiment of this application provides an assembled embroidery positioning clamp, comprising:

[0009] The frame assembly has a first clamping position and a second clamping position. The first clamping position is located at a corner, and the second clamping position is located on the side. The frame assembly has an embroidery space.

[0010] A first clamping component is disposed at the first clamping position. The first clamping component has a first arc-shaped clamping surface, and the first clamping position has a second arc-shaped clamping surface. The first arc-shaped clamping surface and the second arc-shaped clamping surface abut against each other to fix the edges and corners of the fabric.

[0011] The second clamping component is disposed at the second clamping position.

[0012] In at least one embodiment of this application, the frame assembly includes:

[0013] The clamping frame has a first clamping part protruding from the corner, and a first clamping position is formed on the first clamping part. The first clamping part arches outward from the side of the corner to form a second arc-shaped clamping surface. The embroidery space is located on the clamping frame.

[0014] The first clamping component includes:

[0015] The first clamping block is installed on the first clamping part, and the side of the first clamping block near the first clamping part is recessed inward to form the first arc-shaped clamping surface.

[0016] In at least one embodiment of this application, the frame assembly is further provided with a second clamping part, the second clamping part is provided at the corner of the frame assembly, the first clamping part and the second clamping part are respectively located on both sides of the corner, and the second clamping part protrudes outward to form a third arc-shaped clamping surface;

[0017] The first clamping component further includes:

[0018] The second clamping block is installed on the second clamping part, and the side of the second clamping block near the second clamping part is recessed inward to form a fourth arc-shaped clamping surface.

[0019] In at least one embodiment of this application, the diameter of the fourth arc-shaped clamping surface is the same as the diameter of the first arc-shaped clamping surface.

[0020] In at least one embodiment of this application, both the first clamping part and the second clamping part are provided with a first positioning post;

[0021] Both the first clamping block and the second clamping block are provided with two second positioning posts;

[0022] The first clamping component includes:

[0023] Two elastic elements, one end of which is fixed to the first positioning post, and the other ends of the two elastic elements are respectively fixed to the two second positioning posts.

[0024] In at least one embodiment of this application, the first positioning post and the two second positioning posts form a triangular structure.

[0025] In at least one embodiment of this application, the first clamping block and the second clamping block are provided with a first guide groove, and the first clamping part and the second clamping part are provided with a first guide block protruding therefrom. The first guide block is received in the first guide groove and is slidably connected to the first guide groove.

[0026] In at least one embodiment of this application, a first receiving groove is provided on the first clamping block and the second clamping block, and a second receiving groove is provided on the first clamping part and the second clamping part;

[0027] The first clamping component further includes:

[0028] A first magnetic element is disposed within the first receiving groove;

[0029] The second magnetic element is disposed in the second receiving groove and is magnetically connected to the first magnetic element.

[0030] In at least one embodiment of this application, a first clamping plane is provided on the second clamping position;

[0031] The second clamping assembly includes:

[0032] The third clamping block has a second clamping plane;

[0033] The first locking element has one end passing through the third clamping block and the other end threadedly connected to the clamping frame body.

[0034] In at least one embodiment of this application, the frame assembly further includes:

[0035] A fixed frame with an internal movable space is provided. The clamping frame is mounted on the fixed frame and is rotatably connected to the fixed frame.

[0036] The assembled embroidery positioning fixture of this embodiment will have at least the following beneficial effects:

[0037] The aforementioned prefabricated embroidery positioning fixture, during use, involves the embroiderer first laying the embroidery fabric onto the frame assembly. Then, the edges of the fabric are secured by first clamping components located at the four corners. Each first clamping component includes two mating arc-shaped clamping surfaces: a first arc-shaped clamping surface on a first clamping block, and a second arc-shaped clamping surface formed at the first clamping position on the frame. When the first clamping components are installed onto the frame assembly, these two arc-shaped clamping surfaces abut against each other, clamping the fabric corners. The arc-shaped structure conforms to the natural curvature of the fabric corners, thus achieving a secure clamping without damaging the fabric.

[0038] Subsequently, the operator further secures the fabric edge using a second clamping component positioned at the edge. This second clamping component, through its planar clamping structure, evenly stretches the fabric edge along the edge direction, ensuring the fabric surface is taut and flat. The first clamping component, through surface contact between its first and second arc-shaped clamping surfaces, forms a wrapping clamp on the fabric corner, significantly reducing localized pressure on the corner and preventing scratches, tears, or deformation caused by stress concentration. Attached Figure Description

[0039] Figure 1 Structural diagram of a prefabricated embroidery positioning fixture;

[0040] Figure 2 A three-dimensional view of part of the structure of the assembled embroidery positioning fixture;

[0041] Figure 3 A perspective view of the first clamping component and part of its structure;

[0042] Figure 4 for Figure 3 Exploded view;

[0043] Figure 5 This is a structural diagram of the fixed frame;

[0044] Figure 6 This is a structural diagram of the second clamping component;

[0045] Figure 7 Another structural view of the assembled embroidery positioning fixture;

[0046] Figure 8 for Figure 7 Enlarged view of section A in the middle;

[0047] Figure 9 for Figure 7 A cross-sectional view of the prefabricated embroidery positioning fixture.

[0048] Explanation of main component symbols

[0049] 100. Prefabricated embroidery positioning clamp;

[0050] 110. Frame assembly; 110b. Second clamping position; 110c. Embroidery space; 110d. Second arc-shaped clamping surface; 111. Clamping frame; 112. First clamping part; 113. Second clamping part; 113a. Third arc-shaped clamping surface; 114. Fixed frame; 114a. Movable space;

[0051] 120, First clamping assembly; 120a, First arc-shaped clamping surface; 121, First clamping block; 122, Second clamping block; 122a, Fourth arc-shaped clamping surface;

[0052] 130. Second clamping assembly; 130a. Second clamping position; 130b. First clamping plane; 131. Third clamping block; 131a. Second clamping plane; 132. First locking element;

[0053] 140. First positioning post; 141. Second positioning post; 142. Elastic element;

[0054] 150a, First guide groove; 151, First guide block; 150b, First receiving groove; 150c, Second receiving groove; 152, First magnetic component; 153, Second magnetic component. Detailed Implementation

[0055] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0056] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0057] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0058] Embodiments of this application provide an assembled embroidery positioning clamp 100, comprising:

[0059] The frame assembly 110 has a first clamping position 110a and a second clamping position 130a. The first clamping position 110a is located at the corner, and the second clamping position 130a is located on the side. The frame assembly 110 has an embroidery space 110c.

[0060] A first clamping component 120 is disposed at the first clamping position 110a. The first clamping component 120 is provided with a first arc-shaped clamping surface 120a, and the first clamping position 110a is provided with a second arc-shaped clamping surface 110d. The first arc-shaped clamping surface 120a and the second arc-shaped clamping surface 110d abut against each other to fix the edges and corners of the fabric.

[0061] The second clamping component 130 is disposed at the second clamping position 130a.

[0062] Please refer to Figures 1-9In this embodiment, the frame assembly 110 of the assembled embroidery positioning fixture 100 serves as the basic load-bearing structure of the entire device, and is provided with multiple clamping positions, including a first clamping position 110a located at the corner and a second clamping position 130a located at the edge. The central area of ​​the frame assembly 110 is provided with an open embroidery space 110c to expose the fixed fabric area for easy embroidery operation.

[0063] During use, the embroiderer first lays the fabric to be embroidered on the frame assembly 110. Then, the corners of the fabric are secured by the first clamping assemblies 120 located at the four corners. The first clamping assembly 120 includes two mating arc-shaped clamping surfaces: a first arc-shaped clamping surface 120a on the first clamping block 121, and a second arc-shaped clamping surface 110d formed on the first clamping position 110a of the frame. When the first clamping assembly 120 is installed on the frame assembly 110, these two arc-shaped clamping surfaces abut against each other, clamping the fabric corners. The arc-shaped structure conforms to the natural curvature of the fabric corners, thus achieving a secure clamping without damaging the fabric.

[0064] Subsequently, the operator further secures the fabric edge using the second clamping component 130 located at the edge. The second clamping component 130, through its planar clamping structure, evenly stretches the fabric edge along the edge direction, ensuring the fabric surface is taut and flat overall.

[0065] After the above clamping operation is completed, the fabric is firmly stretched within the entire embroidery space 110c area, and the edges and corners are effectively fixed, preventing the fabric from sliding, loosening, or wrinkling during the embroidery process, thus providing a good operating foundation for high-precision processes such as gold thread embroidery.

[0066] The first clamping component 120 forms a wrapping clamp on the fabric corner through the surface contact between the first arc-shaped clamping surface 120a and the second arc-shaped clamping surface 110d. This can significantly reduce the local pressure on the fabric corner and avoid fabric scratches, tears or deformation caused by stress concentration. It is especially suitable for processes with extremely high requirements for fabric protection, such as gold thread embroidery.

[0067] This structure achieves fabric fixation in multiple directions through the cooperation of the first corner clamping component 120 and the second edge clamping component 130. The corner clamps hold the four corners of the fabric, serving to position and prevent rotation; the edge clamps are used to tighten and fix the fabric edges, ensuring uniform tension distribution, high flatness, and stable positioning of the entire fabric surface in the embroidery space 110c, preventing fabric displacement or wrinkling during operation.

[0068] In at least one embodiment of this application, the frame assembly 110 includes:

[0069] The clamping frame 111 has a first clamping part 112 protruding from the corner. The first clamping part 112 has a first clamping position 110a. The first clamping part 112 is located on the side of the corner diagonal and arches outward to form a second arc-shaped clamping surface 110d. The embroidery space 110c is located on the clamping frame 111.

[0070] The first clamping assembly 120 includes:

[0071] The first clamping block 121 is installed on the first clamping part 112, and the side of the first clamping block 121 near the first clamping part 112 is recessed inward to form the first arc-shaped clamping surface 120a.

[0072] Please refer to Figures 1-9 In this embodiment, the clamping frame 111 is a frame structure, and a first clamping part 112 is provided at the corner of the clamping frame 111 for positioning and supporting the parts that clamp the corner of the fabric.

[0073] The first clamping part 112 is arranged along the diagonal direction near the corner and arches outward to form an outward convex arc structure, thus forming the second arc-shaped clamping surface 110d. The outward arch not only forms the curved surface required for clamping, but also leaves space for a natural transition at the corner.

[0074] In actual use, the operator will install the first clamping block 121 onto the first clamping part 112. One side of the first clamping block 121, that is, the side facing the first clamping part 112, is designed with an inwardly concave arc-shaped structure, namely the first arc-shaped clamping surface 120a.

[0075] After the first clamping block 121 is installed, the first arc-shaped clamping surface 120a abuts against the second arc-shaped clamping surface 110d on the first clamping part 112. The relative wrapping structure formed between the two is the clamping area used to clamp the edges and corners of the fabric.

[0076] In use, the embroiderer first places the corner of the embroidery fabric between the first arc-shaped clamping surface 120a and the second arc-shaped clamping surface 110d. Then, the first clamping block 121 is fastened or pressed onto the first clamping part 112. Since both clamping surfaces are arc-shaped, they fit well, and the fabric corner is subjected to a curved surface-distributed clamping force in the middle. This not only firmly clamps the fabric but also avoids problems such as point pressure, shearing, and scratches caused by right-angle clamping in traditional clamps.

[0077] As the other parts of the fabric are tightened by the edge clamps, the fixed corners of the fabric ensure that the entire fabric maintains uniform tension, stable boundaries, and a flat center within the embroidery space 110c, providing an ideal support environment for the embroidery operation.

[0078] The concave-convex double arc surface structure formed by the first clamping block 121 and the first clamping part 112 greatly improves the curvature fit of the clamping contact surface, thereby effectively dispersing the clamping stress on the fabric corner and preventing fabric damage. It is especially suitable for high-value fabrics such as gold thread.

[0079] The clamping structure is precisely positioned along the diagonal lines at the edges, without occupying the embroidery space (110c area) or interfering with the embroidery work in the center. Simultaneously, the combination of outward arches and inward concavities allows the fabric corners to naturally extend when clamped, facilitating fine embroidery in the corner areas and improving embroidery efficiency.

[0080] In at least one embodiment of this application, the frame assembly 110 is further provided with a second clamping part 113, the second clamping part 113 is provided at the corner of the frame assembly 110, the first clamping part 112 and the second clamping part 113 are respectively located on both sides of the corner, and the second clamping part 113 protrudes outward to form a third arc-shaped clamping surface 113a;

[0081] The first clamping assembly 120 further includes:

[0082] The second clamping block 122 is installed on the second clamping part 113. The side of the second clamping block 122 near the second clamping part 113 is recessed inward to form a fourth arc-shaped clamping surface 122a.

[0083] Please refer to Figures 1-9 In this embodiment, a first clamping part 112 and a second clamping part 113 are provided at the corner of the clamping frame 111. These two clamping parts are located on the two adjacent sides of the corner, that is, they are distributed at the two adjacent sides of the corner, forming a diagonally symmetrical structural arrangement.

[0084] The second clamping part 113 is provided with an outward protruding structure, and its surface forms a new third arc-shaped clamping surface 113a, presenting an outward protruding curved surface structure.

[0085] A second clamping block 122 is installed on the second clamping part 113. The clamping surface of the clamping block is concave – a fourth arc-shaped clamping surface 122a. When the second clamping block 122 is installed on the second clamping part 113, the fourth arc-shaped clamping surface 122a and the third arc-shaped clamping surface 113a face each other, forming an arc-shaped clamping jaw.

[0086] Finally, after the embroidered fabric is laid out and placed in the corner area of ​​the clamp, one side of the fabric corner is clamped by the arc surface between the first clamping block 121 and the first clamping part 112, and the other side is clamped by the newly added second clamping block 122 and the second clamping part 113. The clamping forces in these two directions combine to act on the fabric corner, so that the fabric corner is in a three-dimensional stable support and wrapping compression state.

[0087] This forms a "V-shaped" or "L-shaped" two-way clamping support structure to prevent the fabric from shifting, tearing, or being stress-deformed along the two adjacent sides during the embroidery process.

[0088] By simultaneously setting two clamping parts at the corners and matching them with clamping blocks, the fabric corners can obtain clamping force in both adjacent side directions, forming a stable two-way clamping network, which greatly improves the reliability of fabric corner fixing.

[0089] The first clamping part 112 and the first clamping block 121, and the second clamping part 113 and the second clamping block 122, are paired with concave and convex arc-shaped clamping surfaces. This makes the force distribution more uniform, effectively avoids stress concentration, fits better with the natural curvature of the fabric corner, reduces indentations and deformation, and provides a certain cushioning effect.

[0090] The corners of the fabric are the most prone to twisting when the fabric is taut, especially in gold thread embroidery where the alignment accuracy is extremely high. A clamping structure on both sides prevents the corners from rotating, wrinkling, or slipping during embroidery, maintaining the geometric stability of the fabric within the 110° embroidery space and significantly improving the symmetry and detail control of the embroidered pattern.

[0091] In at least one embodiment of this application, the diameter of the fourth arc-shaped clamping surface 122a is the same as the diameter of the first arc-shaped clamping surface 120a.

[0092] Please refer to Figures 1-9 In this embodiment, the diameter of the fourth arc-shaped clamping surface 122a is the same as the diameter of the first arc-shaped clamping surface 120a, meaning they are consistent in geometry and curvature. This ensures that the two clamping blocks exert the same degree of wrapping curvature on the fabric when clamping the corner, forming an approximately symmetrical arc-shaped clamping structure system. When clamping the corner from both directions, the fabric experiences mirror-symmetrical and balanced forces, avoiding situations where one side of the corner experiences excessive force while the other is too loose or too tight due to uneven curvature of the clamping surfaces.

[0093] When the first arc-shaped clamping surface 120a and the fourth arc-shaped clamping surface 122a have the same diameter, the wrapping curvature they generate when clamping the fabric is consistent. The magnitude, direction, and contact area of ​​the clamping force on the fabric corner in both directions are basically equal, thus achieving symmetry and balance in the clamping force field. This effectively prevents the fabric from tilting or rotating during stretching or operation, enhancing clamping stability.

[0094] In at least one embodiment of this application, both the first clamping part 112 and the second clamping part 113 are provided with a first positioning post 140;

[0095] Both the first clamping block 121 and the second clamping block 122 are provided with two second positioning posts 141;

[0096] The first clamping assembly 120 includes:

[0097] Two elastic elements 142, one end of which is fixed to the first positioning post 140, and the other ends of the two elastic elements 142 are respectively fixed to the two second positioning posts 141.

[0098] Please refer to Figures 1-9 In this embodiment, the first clamping part 112 and the second clamping part 113 are respectively provided with a first positioning post 140, which is usually a protruding cylinder fixed on the clamping part. The first clamping block 121 and the second clamping block 122 are respectively provided with two second positioning posts 141, which are generally symmetrically distributed.

[0099] The first clamping assembly 120 is provided with two elastic elements 142 (which can be tension springs, rubber straps, or other structures with a certain restoring force). One end of each elastic element 142 is connected to the first positioning post 140 on the clamping part, and the other end of the elastic element 142 is connected to two second positioning posts 141 on the clamping block. Each clamping block is connected to the clamping part through two elastic elements 142 for double-point support.

[0100] During fabric installation or replacement, the operator can use external force to pull the clamping block outward from the clamping position; after releasing the external force, due to the pulling force of the elastic element 142, the clamping block will automatically return to its original position and return to the clamping state with the arc-shaped clamping surface of the clamping part, thus completing the fixation of the fabric.

[0101] With the connection method of elastic element 142, the user only needs to gently pull open the clamping block, put in the corner or edge of the fabric, and then release the hand. The clamping block will automatically reset and clamp under the action of elastic element 142, which greatly improves the efficiency of fabric loading and is suitable for high-frequency fabric replacement scenarios.

[0102] In at least one embodiment of this application, the first positioning post 140 and the two second positioning posts 141 form a triangular structure.

[0103] Please refer to Figures 1-9 In this embodiment, the first positioning post 140 and the two second positioning posts 141 form a triangular structure. Two elastic members 142 extend from the first positioning post 140 on the clamping part and are connected to the two second positioning posts 141 on the clamping block. The elastic members 142 are in a stretched state and apply a continuous pull force to the clamping block. The triangular structure ensures that the pulling directions of the two elastic members 142 are not completely coincident, but control the posture of the clamping block from different directions.

[0104] During operation, when the user pulls the clamping block outward to clamp the fabric and then releases it, the two elastic elements 142 will work together to automatically reset the clamping block along the set stretching trajectory.

[0105] Because the three positioning posts form a triangular structure, the movement trajectory of the clamping block during the pulling-out and returning process is geometrically restricted to a stable plane, effectively avoiding problems such as offset and tilting of the clamping block during the reset process.

[0106] By arranging the positioning posts in a triangle to form three-point support, the clamping block can be stably positioned in space, preventing the clamping block from shaking, tilting, or dislodging.

[0107] Through the spatial constraint of the triangular structure, the elastic element 142 pulls the clamping block along a controlled guided motion, ensuring that the clamping block can accurately return to its original position after each release and precisely align with the arc-shaped clamping surface on the clamping part. This ensures that the two clamping surfaces fit together consistently and the force is uniform when clamping the fabric, thereby improving the stability of the embroidery.

[0108] In at least one embodiment of this application, the first clamping block 121 and the second clamping block 122 are provided with a first guide groove 150a, and the first clamping part 112 and the second clamping part 113 are provided with a first guide block 151 protruding from them. The first guide block 151 is received in the first guide groove 150a and is slidably connected to the first guide groove 150a.

[0109] Please refer to Figures 1-9 In this embodiment, a first guide groove 150a is provided on the first clamping block 121 and the second clamping block 122. It is generally a groove opened in the longitudinal or inclined direction. Correspondingly, a protruding structure, namely a first guide block 151, is provided on the fixed first clamping part 112 and the second clamping part 113 (on the clamping frame). During assembly, the first guide block 151 is inserted into the first guide groove 150a on the clamping block.

[0110] At this time, the guide block is housed in the guide groove, and the two form a slidable connection, that is, the clamping block can move linearly along the direction of the guide groove relative to the clamping part, but it cannot disengage, deflect or rotate.

[0111] During use, the operator can slide the clamping block outward during the fabric installation stage to open the clamping space. At this time, the first guide block 151 slides out along the first guide groove 150a, realizing the opening action of the clamping block. After inserting the fabric corner or edge, the operator releases the hand, and with the traction of the elastic element 142, the clamping block slides back to its original position along the set trajectory under the guidance of the guide structure. After the return is completed, the arc-shaped clamping surface of the clamping block precisely fits with the corresponding clamping surface on the clamping part, completing the clamping action.

[0112] The entire process requires no complex alignment; the clamping block always moves along the guide direction, automatically aligning and clamping.

[0113] The sliding connection between the guide block and the guide groove restricts the movement trajectory of the clamping block, allowing it to slide only in a specific direction and preventing the clamping block from tilting, wobbling, or shifting. This not only improves the consistency of the clamping action but also ensures accurate contact of the clamping surfaces, enhancing the clamping effect.

[0114] With the elastic element 142 structure, the guide groove provides a clear springback trajectory, allowing the clamping block to automatically return to the predetermined clamping position after release, eliminating the need for manual alignment or repeated adjustments. This significantly improves fabric installation speed and is suitable for embroidery processes with frequent fabric changes.

[0115] The first and second clamping blocks 122 are each equipped with a guide structure, which enables symmetrical sliding. When the two clamping blocks are guided and reset by the guide groove and simultaneously clamp the two sides of the fabric corner, the fabric corner is subjected to balanced force in two directions, and the clamping action is synchronized, which improves the tension symmetry of the fabric corner and the flatness of the fabric surface, and helps to maintain the accuracy of the embroidery pattern.

[0116] In at least one embodiment of this application, the first clamping block 121 and the second clamping block 122 are provided with a first receiving groove 150b, and the first clamping part 112 and the second clamping part 113 are provided with a second receiving groove 150c.

[0117] The first clamping assembly 120 further includes:

[0118] The first magnetic element 152 is disposed in the first receiving groove 150b;

[0119] The second magnetic element 153 is disposed in the second receiving groove 150c and is magnetically connected to the first magnetic element 152.

[0120] Please refer to Figures 1-9 In this embodiment, the first clamping block 121 and the second clamping block 122 are respectively provided with a first receiving groove 150b for embedding the first magnetic element 152. The first clamping part 112 and the second clamping part 113 are also respectively provided with a second receiving groove 150c. The first magnetic element 152 is embedded in the first receiving groove 150b. This element is usually a permanent magnet such as a neodymium iron boron magnet. The second magnetic element 153 is provided in the corresponding second receiving groove 150c. It is usually a magnet with opposite polarity or a ferrous metal element. When the clamping block approaches the clamping part, the two magnetic elements generate magnetic attraction, so that the clamping block is firmly attracted to the clamping part.

[0121] When installing the fabric, the operator pulls the clamping block outward to separate the first magnetic component 152 from the second magnetic component 153, releasing the clamping force. After placing the fabric corner or edge, the operator releases the clamping block. With the help of the elastic component 142 and the guide structure, the clamping block slides back to its original position along the guide track. When the clamping block approaches the clamping part, the magnetic component automatically aligns and attracts the clamping block, allowing it to quickly reset and securely fix, thus completing the clamping operation. The entire process requires no additional bolts or clips, enabling tool-free quick assembly and disassembly.

[0122] With the adoption of a magnetic adsorption structure, the clamping block and the clamping part can achieve an automatic connection method of alignment and adsorption, which greatly simplifies the operation process, improves the speed of fabric change, and is especially suitable for high-frequency embroidery operations.

[0123] The adsorption force can meet the clamping stability required for the fabric. The magnetic adsorption can effectively bear the clamping force in multiple directions, which helps to prevent the clamping block from loosening due to vibration or pulling during the embroidery process, thereby maintaining the stable positioning of the fabric corner throughout the embroidery process.

[0124] Because the first magnetic component 152 and the second magnetic component 153 have automatic positioning characteristics, when the clamping block returns to its original position and approaches the clamping part, the magnetic force attracts it and accurately aligns it with the position of the clamping part, avoiding human-induced misalignment or uneven clamping, and effectively improving the symmetry and tension consistency of the embroidered fabric.

[0125] In at least one embodiment of this application, a first clamping plane 130b is provided on the second clamping position 130a;

[0126] The second clamping assembly 130 includes:

[0127] The third clamping block 131 has a second clamping plane 131a;

[0128] The first locking member 132 has one end passing through the third clamping block 131 and the other end threadedly connected to the clamping frame 111.

[0129] Please refer to Figures 1-9 In this embodiment, a plurality of second clamping positions 130a are provided in the edge direction of the clamping frame 111. These clamping positions are close to the edge area of ​​the embroidered fabric, and their surfaces are designed as first clamping planes 130b to serve as a support reference surface during clamping.

[0130] The first clamping plane 130b is usually a horizontal or flat surface parallel to the fabric, which makes it easy for the fabric to be laid out tightly against its surface and play a stable supporting role.

[0131] Corresponding to the second clamping position 130a, each clamping position is also equipped with a third clamping block 131. This clamping block can be regarded as a movable pressure plate, which has a second clamping plane 131a on the side facing the fabric, which is opposite to and parallel to the first clamping plane 130b.

[0132] After the third clamping block 131 is installed on the second clamping position 130a, the two flat surfaces—the first clamping surface 130b and the second clamping surface 131a—clamp the edge area of ​​the embroidery fabric in the middle, achieving a tight pressing and fixing between the surfaces. This structure can achieve large-area clamping contact, preventing local creases or folds in the fabric.

[0133] To securely press the third clamping block 131 onto the fabric, this embodiment includes a first locking member 132. This locking member is a typical threaded connection structure, with one end passing through the third clamping block 131, i.e., through a through hole or mounting hole on the block, and the other end threadedly connected to the clamp frame. Typically, the clamping block is driven downwards by rotational tightening. The operator can securely press the clamping block against the fabric with a simple rotational action, achieving clamping or release.

[0134] The large clamping area between the first clamping plane 130b and the second clamping plane 131a can generate a uniform and gentle clamping force on the embroidery fabric, preventing dot-like indentations or damage.

[0135] In addition, with the threaded structure of the locking mechanism, operators can adjust the clamping force appropriately according to the thickness of the fabric, flexibly adapting to embroidery fabrics of different materials and thicknesses, such as silk, satin, and gold thread embroidery fabric, thus improving the compatibility of the clamp.

[0136] The third clamping block 131 can be set with multiple points on the edge of the clamp to form a multi-point distributed clamping system. Combined with the arc-shaped clamping structure at the corner of the fabric, it can achieve comprehensive stretching and fixing of the entire piece of fabric at the edge and corner, greatly enhancing the uniformity of fabric tension, preventing center wrinkling or pattern deformation caused by edge slack, and improving embroidery precision and consistency.

[0137] In at least one embodiment of this application, the frame assembly 110 further includes:

[0138] The fixed frame 114 has an internal movable space 114a. The clamping frame 111 is mounted on the fixed frame 114 and is rotatably connected to the fixed frame 114.

[0139] Please refer to Figures 1-9 In this embodiment, the fixed frame 114 is a component installed on the outermost part of the clamp, which is roughly a frame structure. The movable space 114a is used to accommodate the clamping frame 111 and the trajectory range required for its rotation, so as to prevent the clamp from being stuck or structurally interfered during rotation.

[0140] The existence of the activity space 114a ensures that the clamping frame 111 can rotate freely without being disturbed by physical obstacles.

[0141] The clamping frame 111 and the fixed frame 114 are connected by components such as a rotating shaft, a pivot, and a pin. Through this rotating connection, the operator can manually or with the help of a mechanism to rotate the clamping frame 111 around the fixed axis to different angles.

[0142] The clamping frame 111 can rotate around a set direction. The embroiderer can freely adjust the angle of the clamp according to the position of the embroidery pattern and the angle of hand operation, so that the operation is always in the most comfortable and convenient position. It is especially suitable for large-area patterns, multi-directional stitches or fine gold thread embroidery.

[0143] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A prefabricated embroidery positioning clamp, characterized in that, include: The frame assembly has a first clamping position and a second clamping position. The first clamping position is located at a corner, and the second clamping position is located on the side. The frame assembly has an embroidery space. A first clamping component is disposed at the first clamping position. The first clamping component has a first arc-shaped clamping surface, and the first clamping position has a second arc-shaped clamping surface. The first arc-shaped clamping surface and the second arc-shaped clamping surface abut against each other to fix the edges and corners of the fabric. The second clamping component is disposed at the second clamping position.

2. The assembled embroidery positioning fixture according to claim 1, characterized in that, The frame assembly includes: The clamping frame has a first clamping part protruding from the corner, and a first clamping position is formed on the first clamping part. The first clamping part arches outward from the side of the corner to form a second arc-shaped clamping surface. The embroidery space is located on the clamping frame. The first clamping component includes: The first clamping block is installed on the first clamping part, and the side of the first clamping block near the first clamping part is recessed inward to form the first arc-shaped clamping surface.

3. The assembled embroidery positioning fixture according to claim 2, characterized in that, The frame assembly is further provided with a second clamping part, which is located at the corner of the frame assembly. The first clamping part and the second clamping part are respectively located on both sides of the corner. The second clamping part protrudes outward to form a third arc-shaped clamping surface. The first clamping component further includes: The second clamping block is installed on the second clamping part, and the side of the second clamping block near the second clamping part is recessed inward to form a fourth arc-shaped clamping surface.

4. The assembled embroidery positioning fixture according to claim 3, characterized in that, The diameter of the fourth arc-shaped clamping surface is the same as the diameter of the first arc-shaped clamping surface.

5. The assembled embroidery positioning fixture according to claim 3, characterized in that, Both the first clamping part and the second clamping part are provided with a first positioning post; Both the first clamping block and the second clamping block are provided with two second positioning posts; The first clamping component includes: Two elastic elements, one end of which is fixed to the first positioning post, and the other ends of the two elastic elements are respectively fixed to the two second positioning posts.

6. The assembled embroidery positioning fixture according to claim 5, characterized in that, The first positioning post and the two second positioning posts form a triangular structure.

7. The assembled embroidery positioning fixture according to claim 3, characterized in that, The first clamping block and the second clamping block are provided with a first guide groove, and the first clamping part and the second clamping part are provided with a first guide block. The first guide block is received in the first guide groove and is slidably connected with the first guide groove.

8. The assembled embroidery positioning fixture according to claim 3, characterized in that, The first clamping block and the second clamping block are provided with a first receiving groove, and the first clamping part and the second clamping part are provided with a second receiving groove; The first clamping component further includes: A first magnetic element is disposed within the first receiving groove; The second magnetic element is disposed in the second receiving groove and is magnetically connected to the first magnetic element.

9. The assembled embroidery positioning fixture according to claim 2, characterized in that, The second clamping position is provided with a first clamping plane; The second clamping assembly includes: The third clamping block has a second clamping plane; The first locking element has one end passing through the third clamping block and the other end threadedly connected to the clamping frame body.

10. The assembled embroidery positioning fixture according to claim 2, characterized in that, The frame assembly also includes: A fixed frame with an internal movable space is provided. The clamping frame is mounted on the fixed frame and is rotatably connected to the fixed frame.

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