A thread clamping device and a computerized embroidery machine

Abstract

This application discloses a thread clamping device and a computerized embroidery machine. The thread clamping device includes a thread clamping base, a thread clamping component, and a limiting structure. The limiting structure, projected onto the upper bend, closes the opening of the upper thread guide groove. By sealing the space above or below the opening of the upper thread guide groove, the thread moves from top to bottom. A loose thread must pass through the opening to escape the upper thread guide groove, but the limiting structure blocks the opening, preventing the thread from escaping. This prevents the loose thread from detaching from the upper thread guide groove, keeping the thread stably within it and improving embroidery stability.

Description

Technical Field

[0001] This utility model generally relates to the field of embroidery machine technology, and more particularly to a thread clamping device and a computerized embroidery machine. Background Technology

[0002] The thread clamping device is a key component of the embroidery machine. Its function is to work with the embroidery machine to clamp or release the thread, effectively solving the problem that the thread easily comes out of the needle hole when cutting, changing colors, or repairing embroidery, thus helping the embroidery machine improve embroidery efficiency.

[0003] In related technologies, a thread clamping device includes a clamping base, a clamping plate, and a push rod. The clamping plate has a thread-passing groove, and the push rod drives the clamping plate to move back and forth relative to the clamping base. When the push rod drives the clamping plate away from the clamping base, the thread clamping device releases the thread. When the push rod drives the clamping plate closer to the clamping base, the thread clamping device clamps the thread.

[0004] However, the above method has a drawback: when the thread clamping device releases the thread, the thread is prone to run out of the thread guide during the embroidery process, affecting the stability of the embroidery. Utility Model Content

[0005] This utility model provides a face thread clamping device, including: a face thread clamping base, a face thread clamping component, and a limiting structure.

[0006] The thread clamping member has a clamping position and a loosening position, which are close to or far from the thread clamping seat. The thread clamping member is provided with an upper bent portion extending toward the thread clamping seat, and the upper bent portion is provided with an upper thread groove.

[0007] When the face wire clamp is in the loose wire position, at least part of the limiting structure is located directly above or below the upper wire groove, and the projection of the limiting structure on the upper bend can close the opening of the upper wire groove.

[0008] As one possible implementation, the limiting structure includes a first limiting strip, which is integrally formed with the face wire clamping seat, or the first stopping strip and the face wire clamping seat are separately provided.

[0009] As an implementation method, the length extension direction of the first limiting strip forms an angle α with the first direction, where 0°≤α<90°.

[0010] As an implementation, the face wire clamping seat includes a seat body, wherein the length of the first limiting strip in the first direction is greater than the length of the opening of the upper through-line groove in the first direction, or the length of the first limiting strip in the first direction is at least greater than the length of the seat body in the first direction.

[0011] As one possible implementation, the upper end face of the seat is used to fit against the upper bent portion.

[0012] A second limiting strip is protruding from the upper surface of the seat, and the first limiting strip extends from the second limiting strip. The first limiting strip and the second limiting strip together form the limiting structure.

[0013] As one possible implementation, the upper bend includes a first surface facing the second limiting strip.

[0014] The upper through-line groove divides the first surface into a first sub-surface and a second sub-surface. At least one of the first sub-surface and the second sub-surface is inclined to guide the surface line to the upper through-line groove.

[0015] As an implementation method, the face wire clamping member includes a body, on which an upper bending portion and a lower bending portion are arranged opposite each other. The body also has a first auxiliary adjustment portion located on the same side of the upper bending portion and the lower bending portion. The face wire clamping member is adjusted by the first auxiliary adjustment portion so that the face wire is placed in the upper wire groove.

[0016] As an implementation method, at least one of the upper bend and the lower bend is provided with a second auxiliary adjustment part, which is formed by folding and extending at the edge of the upper bend or the lower bend, and the face wire clamping member is adjusted by the second auxiliary adjustment part so that the face wire is placed in the upper through-line groove.

[0017] This utility model also provides a computerized embroidery machine, including the above-mentioned thread clamping device.

[0018] In the above-described solution, this application uses a limiting structure projected onto the upper bend, which closes the opening of the upper thread guide groove. The limiting structure seals the space above or below the opening of the upper thread guide groove. As the thread moves downwards, any loose thread attempting to escape the upper thread guide groove must pass through its opening; however, the limiting structure blocks the opening, preventing the thread from escaping. This prevents the loose thread from detaching from the upper thread guide groove, keeping it stably within the groove and improving embroidery stability. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a front view schematic diagram of a face thread clamping device provided in an embodiment of the present utility model;

[0021] Figure 2A left-side view of a face thread clamping device provided in an embodiment of this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of a part Figure 1 ;

[0023] Figure 4 for Figure 2 Enlarged view of a part Figure 2 ;

[0024] Figure 5 This is an isometric schematic diagram of a face thread clamping device provided in an embodiment of the present utility model;

[0025] Figure 6 for Figure 5 A magnified view of a portion of the image;

[0026] Figure 7 Schematic diagram of the surface wire clamping member provided in the embodiment of this utility model Figure 1 ;

[0027] Figure 8 Schematic diagram of the surface wire clamping member provided in the embodiment of this utility model Figure 2 ;

[0028] Figure 9 Schematic diagram of the surface wire clamping member provided in the embodiment of this utility model Figure 3 ;

[0029] Figure 10 A schematic diagram of the arrangement of the upper bending part and the first limiting strip provided for an embodiment of this utility model;

[0030] Figure 11 This is a schematic diagram illustrating another arrangement of the upper bending portion and the first limiting strip provided in an embodiment of the present utility model;

[0031] Figure 12 This is a schematic diagram illustrating another arrangement of the upper bending portion and the first limiting strip provided in an embodiment of the present utility model;

[0032] 10, body 11, upper bending part 12, upper wire passage groove 121, left side part 122, right side part 123, first sub-surface 1221, second sub-surface 1231, lower bending part 13, lower wire passage groove 131, first auxiliary adjustment part 14, second auxiliary adjustment part 15;

[0033] Thread clamp 20, first end face 21, second end face 22, third end face 23, and thread pressing groove 24;

[0034] Needle bar holder 30, limiting structure 40, first limiting strip 41, second limiting strip 42. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] This utility model provides a technical solution: such as Figures 1-12 As shown, a thread clamping device includes: a thread clamping base 20, a thread clamping member 10, and a top rod, with the thread clamping base 20 and the thread clamping member 10 arranged front to back. The thread clamping base 20 is fixedly mounted on the crossbar of the needle bar frame 30 of the computerized embroidery machine.

[0038] The thread clamp 20 includes a base body, such as Figure 6 As shown, the base includes a first end face 21 and a second end face 22 arranged opposite each other, and a third end face 23 connecting the first end face 21 and the second end face 22. The third end face 23 faces the face wire clamping member 10. A portion of the upper part of the third end face 23 is recessed to form a wire pressing groove 24. The face wire clamping member 10 can be adapted to the wire pressing groove 24.

[0039] The push rod passes through the bottom of the wire pressing groove 24, and its end is connected to the top thread clamping member 10. The push rod moves the top thread clamping member 10 closer to or further away from the seat of the top thread clamping base 20, thus having a clamping position and a loosening position. When the top thread clamping member 10 is in the clamping position, such as Figure 3 As shown, the thread clamping member 10 is disposed within the thread pressing groove 24, and the bottom of the thread pressing groove 24 clamps the thread with the thread clamping member 10; when the thread clamping member 10 is in the loose position, as Figure 4 As shown, the top thread holder 10 is positioned near the opening of the pressure groove 24, and there is a gap between the top thread holder 10 and the bottom of the pressure groove 24, allowing the top thread to pass freely between the top thread holder 10 and the bottom of the pressure groove 24.

[0040] Among them, such as Figure 7 and Figure 8As shown, the thread clamping member 10 includes a body 11. The body 11 has an upper bent portion 12 and a lower bent portion 13 extending toward the thread clamping seat 20. The upper bent portion 12 has an upper thread-passing groove 121, and the lower bent portion 13 has a lower thread-passing groove 131. The upper bent portion 12 is correspondingly disposed to the first end face 21, and the lower bent portion 13 is correspondingly disposed to the second end face 22. During the switching between the thread clamping position and the thread loosening position, the upper bent portion 12 is located above the first end face 21 and fits against the first end face 21; the lower bent portion 13 is located below the second end face 22 and fits against the second end face 22. When the thread clamping member 10 is in the clamping position, the upper bend 12 faces the first end face 21 and the lower bend 13 faces the second end face 22; when the thread clamping member 10 is in the loose position, the upper bend 12 is offset from the first end face 21 and the lower bend 13 is offset from the second end face 22.

[0041] In practical applications, refer to Figure 4 As shown, when the thread holder 10 is in the loose position, the thread sways (the thread swings back and forth or left and right), and the swaying thread can cause the thread holder 10 to vibrate slightly back and forth. When there is a gap between the upper bend 12 and the third end face 23 in the back and forth direction, the swaying thread can escape from the upper thread groove 121 of the upper bend 12 through this gap, thereby causing the embroidery to stop and affecting the stability of the embroidery.

[0042] Based on this, such as Figure 4 and Figure 10 As shown, when the face wire clamp 10 is in the loose wire position, at least part of the limiting structure 40 is located directly above the upper wire groove 121, and the projection of the limiting structure 40 on the upper bend 12 can close the opening of the upper wire groove 121.

[0043] It should be noted that the limiting structure 40 is projected orthographically onto the upper bend 12, and the projection of the limiting structure 40 closes the opening of the upper thread guide 121. The limiting structure 40 closes the space above the opening of the upper thread guide 121. As the thread moves downwards, any loose thread attempting to escape the upper thread guide 121 must pass through its opening. However, the limiting structure 40 blocks the opening, preventing the thread from escaping. This prevents the loose thread from detaching from the upper thread guide 121, ensuring the thread remains stably within the upper thread guide 121 and improving embroidery stability.

[0044] Of course, it is understandable that the limiting structure 40 can be located directly below the upper bend 12, and the orthogonal projection of the limiting structure 40 on the upper bend 12 closes the opening of the upper through groove 121.

[0045] The following is at least in conjunction with the accompanying drawings. Figures 1-12 The surface clamping device is described in detail below:

[0046] The limiting structure 40 includes a first limiting strip 41, the length extension direction of the first limiting strip 41 forms an angle α with the first direction, 0°≤α<90°.

[0047] like Figure 5 and Figure 6 As shown, the thread clamping device has several thread clamping members 10 and several push rods, with each thread clamping member 10 corresponding to one of the push rods. The thread clamping base 20 can be long, with the thread pressing groove 24 extending along the length of the thread clamping base 20, and the several thread clamping members 10 arranged sequentially along the length of the thread clamping base 20.

[0048] The first limiting strip 41 and the surface line clamping seat 20 are integrally formed, or the first limiting strip 41 and the surface line clamping seat 20 are separately set.

[0049] The first limiting strip 41 and the surface line clamping seat 20 are integrally formed for illustration:

[0050] A second limiting strip 42 protrudes from the first end face 21 of the base, and a first limiting strip 41 extends from the second limiting strip 42. The first limiting strip 41 and the second limiting strip 42 together form a limiting structure 40. The cross-section of the limiting structure 40 can be an inverted L-shape. This design makes processing convenient and simple, and can reduce processing costs.

[0051] Of course, it is understood that the cross-section of the limiting structure 40 may be, but is not limited to, an inverted L-shape, and those skilled in the art may choose a suitable shape according to the actual situation.

[0052] In one embodiment, such as Figure 10 As shown, a first limiting strip 41 is provided above the first end face 21, and the length of the first limiting strip 41 extends in the left-right direction (first direction). The length of the first limiting strip 41 is equal to the length of the base body.

[0053] In another embodiment, such as Figure 11 As shown, a first limiting strip 41 is provided above the first end face 21. The length of the first limiting strip 41 extends approximately along the left-right direction (first direction), that is, the length direction of the first limiting strip 41 is inclined relative to the left-right direction. For example, the angle between the length direction of the first limiting strip 41 and the left-right direction can be 10°, 15°, 20°, 30°, 40°, etc., which are not listed one by one in this embodiment. The length of the first limiting strip 41 is greater than the length of the base body.

[0054] Of course, it is understandable that when the first limiting strip 41 and the face wire clamping seat 20 are separately configured, the length of the first limiting strip 41 is much smaller than the length of the seat body. Several first limiting strips 41 are arranged sequentially along the length direction of the face wire clamping seat 20, with each first limiting strip 41 corresponding to an upper bend 12. The first limiting strip 41 can extend in the left-right direction, or approximately in the left-right direction. Figure 12 As shown, the length of the first limiting strip in the left and right directions is greater than the length of the opening of the upper through groove 121 in the left and right directions.

[0055] The upper bending portion 12 includes a first surface a facing the second limiting strip 42. The opening of the upper through groove 121 divides the first surface a into a first sub-surface 1221 and a second sub-surface 1231. At least one of the first sub-surface 1221 and the second sub-surface 1231 is inclined so as to guide the surface line to the opening of the upper through groove 121.

[0056] like Figure 9 As shown, the upper bend 12 is divided into a left side 122 and a right side 123 by the upper wire guide groove 121. The surface of the left side 122 facing the second limiting strip 42 is the first sub-surface 1221, and the surface of the right side 123 facing the second limiting strip 42 is the second sub-surface 1231. The second sub-surface 1231 extends in the left-right direction, and the first sub-surface 1221 is inclined relative to the left-right direction, as shown in the figure, the part of the first sub-surface 1221 near the second sub-surface 1231 is inclined forward. In this way, when the top wire is manually placed in the upper wire guide groove 121, the first sub-surface 1221 guides the top wire, which helps the top wire enter the opening of the upper wire guide groove 121.

[0057] The main body 11 is also provided with a first auxiliary adjustment part 14 located on the same side of the upper bending part 12 and the lower bending part 13. The face wire clamping member 10 is adjusted by the first auxiliary adjustment part 14 so that the face wire is placed in the upper wire groove 121 or the lower wire groove 131.

[0058] like Figure 7 and Figure 8 As shown, after the thread is used up and a new thread is replaced, the thread clamp 10 is manually pulled open with the help of the first auxiliary adjustment part 14, and then the thread is placed in the upper thread groove 121 and the lower thread groove 131. In this way, the operation is simple and convenient, and the thread placement time is shortened.

[0059] At least one of the upper bend portion 12 and the lower bend portion 13 is provided with a second auxiliary adjustment portion 15. The second auxiliary adjustment portion 15 is formed by folding and extending the edge of the upper bend portion 12 or the lower bend portion 13, and the face wire clamping member 10 is adjusted by the second auxiliary adjustment portion 15 so that the face wire is placed in the upper wire groove 121 or the lower wire groove 131.

[0060] like Figure 7 and Figure 8 As shown, the lower bending portion 13 and the second auxiliary adjustment portion 15 are set at a 90° angle. After the top thread is used up and replaced with a new one, the top thread clamp 10 is manually pulled open using the second auxiliary adjustment portion 15, and then the top thread is placed in the upper thread groove 121 and the lower thread groove 131. In this way, the operation is simple and convenient, and the top thread placement time is shortened.

[0061] This utility model also provides a computerized embroidery machine, including the aforementioned thread clamping device. The limiting structure 40, projected onto the upper bend 12, closes the opening of the upper thread guide groove 121. The limiting structure 40 closes the space above the opening of the upper thread guide groove 121. As the thread moves downwards, any loose thread attempting to escape the upper thread guide groove 121 must pass through its opening; however, the limiting structure 40 blocks the opening, preventing the thread from escaping. This prevents the loose thread from detaching from the upper thread guide groove 121, ensuring the thread remains stably within it and improving embroidery stability.

[0062] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0063] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A thread clamping device, characterized in that include: Thread holder (20); A wire clamping member (10) is located near or away from the wire clamping seat (20) and has a clamping position and a loosening position. The wire clamping member (10) is provided with an upper bent portion (12) extending toward the wire clamping seat (20), and the upper bent portion (12) is provided with an upper wire groove (121). When the face wire clamp (10) is in the loose wire position, at least part of the limiting structure (40) is located directly above or directly below the upper wire groove (121), and the projection of the limiting structure (40) on the upper bend (12) can close the opening of the upper wire groove (121).

2. The face thread clamping device according to claim 1, characterized in that, The limiting structure (40) includes a first limiting strip (41), which is integrally formed with the face wire clamping seat (20), or the first limiting strip (41) and the face wire clamping seat (20) are separately arranged.

3. The face thread clamping device according to claim 2, characterized in that, The first limiting strip (41) extends at an angle α with the first direction, where 0°≤α<90°.

4. The face thread clamping device according to claim 3, characterized in that, The face wire clamp (20) includes a seat body, The length of the first limiting strip (41) in the first direction is greater than the opening of the upper through groove (121) in the first direction, or the length of the first limiting strip (41) in the first direction is at least greater than the length of the seat body in the first direction.

5. The face thread clamping device according to claim 4, characterized in that, The upper end face of the seat is used to fit against the upper bent portion (12). A second limiting strip (42) is protruding on the upper surface of the seat, and a first limiting strip (41) extends from the second limiting strip (42). The first limiting strip (41) and the second limiting strip (42) together form the limiting structure (40).

6. The face thread clamping device according to claim 5, characterized in that, The upper bend (12) includes a first surface (a) facing the second limiting strip (42). The groove opening of the upper through-line groove (121) divides the first surface (a) into a first sub-surface (1221) and a second sub-surface (1231). At least one of the first sub-surface (1221) and the second sub-surface (1231) is inclined so as to guide the surface line to the groove opening of the upper through-line groove (121).

7. The face thread clamping device according to any one of claims 1-6, characterized in that, The face wire clamp (10) includes a body (11), on which the upper bending part (12) and the lower bending part (13) are arranged opposite to each other. The main body (11) is also provided with a first auxiliary adjustment part (14) located on the same side of the upper bending part (12) and the lower bending part (13). The face wire clamping member (10) is adjusted by the first auxiliary adjustment part (14) so ​​that the face wire is placed in the upper wire groove (121).

8. The face thread clamping device according to claim 7, characterized in that, At least one of the upper bend (12) and the lower bend (13) is provided with a second auxiliary adjustment part (15). The second auxiliary adjustment part (15) is formed by folding and extending the edge of the upper bend (12) or the lower bend (13). The face wire clamping member (10) is adjusted by the second auxiliary adjustment part (15) so that the face wire is placed in the upper through-line groove (121).

9. A computerized embroidery machine, characterized in that, The surface thread clamping device includes any one of claims 1-8.

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