Cloth clamping device

Abstract

According to the cloth clamping device, an inserting-connecting protrusion of a cloth pressing cover is matched with a gap between two air bags on a cloth clamping base in an inserting-connecting mode, cloth is laid on the cloth clamping base, the inserting-connecting protrusion is inserted into the gap, the cloth is clamped by the air bags and the inserting-connecting protrusion under preset pressure, the preset pressure can be adjusted, and the cloth clamping effect is improved. The included angle degree of the cloth clamping device for clamping the cloth is adjusted; the air bag is deflated, the preset pressure of the air bag is reduced, the acting force for clamping the cloth between the air bag and the inserting connection protrusion is reduced, the cloth pressing cover is detached from the cloth clamping base, and the cloth is taken down. Thus, operation is easy and convenient, cloth clamping operation can be rapidly completed, cloth cannot be damaged, and the problems that in the related technology, manual cloth clamping operation wastes time and labor and is poor in efficiency are solved.

Description

Technical Field

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

[0002] Before embroidery, the fabric on the embroidery machine needs to be fixed to the embroidery frame using fabric clips. Traditional fabric clips are manual clips, which are used to hold and remove the clips manually. Since multiple clips are needed for one embroidery frame, manual clips are cumbersome, laborious, and the fabric is prone to coming loose. Utility Model Content

[0003] This utility model provides a fabric clamping device, including: a fabric clamping base, an air bladder, and a fabric pressing cover.

[0004] The fabric base is provided with an airbag mounting cavity; two airbags are disposed in the airbag mounting cavity, and the two airbags are spaced apart to form a gap; the fabric cover is provided with an insertion protrusion, and the insertion protrusion is inserted into the gap.

[0005] As one possible implementation, the insertion protrusion includes a root, an end, and a middle portion connecting the root and the end, wherein the insertion protrusion is distributed with larger ends and a smaller middle portion.

[0006] As one possible implementation, the cross-section of the end portion gradually increases and then gradually decreases in the direction from the root to the end portion.

[0007] As an implementation, the end surface includes a first arcuate surface, the first arcuate surface being parallel to the direction from the root to the end along the circular axis corresponding to the first directional cross-section, wherein the first directional cross-section is perpendicular to the direction from the root to the end.

[0008] As an alternative implementation, the end surface further includes a first curved surface connected to the middle portion, wherein the center of the circle corresponding to the cross-section of the first curved surface in the first direction is on the same straight line as the center corresponding to the first arc-shaped surface.

[0009] As an implementation method, the end surface further includes a second curved surface, which connects the first arc-shaped surface and the first curved surface in an arc transition, wherein the maximum value of the circular diameter corresponding to the cross-section of the second curved surface in the first direction is greater than the maximum value of the gap in the first direction.

[0010] As an implementation method, the surface of the middle portion is provided with a friction pattern.

[0011] As one possible implementation, the friction pattern includes protrusions or strips protruding toward the airbag on the central surface.

[0012] As one possible implementation, the airbag mounting cavity includes two spaced-apart mounting chambers and a connecting chamber connecting the two mounting chambers. The mounting chambers are elongated, and the airbag is mounted in the mounting chamber.

[0013] The pressure cover also includes a body, on which the insertion protrusion is provided, the length of which is equal to the length of the airbag.

[0014] As an alternative implementation, the body also has a connecting protrusion parallel to the insertion protrusion, the length of which is equal to the length of the insertion protrusion. The connecting protrusion and the insertion protrusion are arranged in the same direction, forming a groove between them, and the fabric-reinforced base is inserted into the groove.

[0015] The above solution involves inserting a protrusion on the fabric-pressing cover into the gap between two airbags on the fabric-clamping base. The fabric is laid on the base, and the protrusion inserts into the gap. The airbags, under preset pressure, clamp the fabric with the protrusion. The preset pressure can be adjusted to regulate the angle at which the fabric is clamped. Deflating the airbags reduces their preset pressure, decreasing the clamping force between the airbags and the protrusion, allowing the fabric-pressing cover to be removed from the base and the fabric taken off. This method is simple, convenient, and allows for quick fabric clamping without damaging the fabric, avoiding the time-consuming, labor-intensive, and inefficient manual fabric clamping methods of related technologies. Attached Figure Description

[0016] 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:

[0017] Figure 1 This is a schematic diagram of the structure of a fabric clamp device provided in an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0019] Figure 3 An exploded view of a cloth clamping device provided in an embodiment of this utility model;

[0020] Fabric cover 10, body 11, insertion protrusion 12, root 121, middle part 122, end 123, first curved surface 1231, second curved surface 1232, first arc-shaped surface 1233, connecting protrusion 13;

[0021] Fabric-reinforced base 20, airbag mounting cavity 21, mounting chamber 211, connecting chamber 212, first space 212a, second space 212b, first base 22, second base 23;

[0022] Airbag 30. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] Before embroidery, the fabric on the embroidery machine needs to be fixed to the embroidery frame using fabric clips. Traditional fabric clips are manual clips, which are used to hold and remove the clips manually. Since multiple clips are needed for one embroidery frame, manual clips are cumbersome, laborious, and the fabric is prone to coming loose.

[0026] Based on this, this application proposes a fabric clamping device that is simple and convenient to operate, can quickly complete the fabric clamping operation, and will not damage the fabric, thus avoiding the problems of time-consuming, labor-intensive, and inefficient manual fabric clamping operations in related technologies.

[0027] like Figures 1-3 As shown, the fabric clamping device includes: a fabric clamping base 20, an airbag 30, and a fabric pressing cover 10. The fabric clamping base 20 is provided with an airbag mounting cavity 21; two airbags 30 are disposed in the airbag mounting cavity 21, and the two airbags 30 are spaced apart to form a gap; the fabric pressing cover 10 is provided with an insertion protrusion 12, which is inserted into the gap.

[0028] Among them, at least one of the upper frame, lower frame, left frame and right frame of the embroidery frame can be used as the fabric base 20, and the fabric base 20 includes, but is not limited to, aluminum alloy profiles.

[0029] like Figure 3 As shown, the fabric-reinforced base 20 has an airbag mounting cavity 21, which can be cast. The length of the airbag mounting cavity 21 extends along the length direction of the fabric-reinforced base 20. The airbag mounting cavity 21 has two mounting chambers 211 and a connecting chamber 212 connecting the two mounting chambers 211. The mounting chambers 211 are elongated, and the airbags 30 are mounted in the mounting chambers 211. The two airbags 30 are spaced apart by a preset distance to form an elongated gap.

[0030] The fabric cover 10 includes, but is not limited to, an aluminum alloy profile. The fabric cover 10 includes a body 11, the length of which is approximately equal to the length of the fabric base 20. The body 11 is provided with an insertion protrusion 12, the length of which is equal to the length of the aforementioned gap.

[0031] The main body 11 also has a connecting protrusion 13 parallel to the insertion protrusion 12, and the length of the connecting protrusion 13 is equal to the length of the insertion protrusion 12. The connecting protrusion 13 and the insertion protrusion 12 are arranged in the same direction and a groove is formed between them. The fabric-reinforced base 20 includes a first base 22 and a second base 23 arranged side by side, and the airbag mounting cavity 21 described above is provided between the first base 22 and the second base 23. The first base 22 or the second base 23 is adapted to the groove. The first base 22 can be inserted into the groove, or the second base 23 can be inserted into the groove, thereby realizing that the fabric-reinforced base 20 is inserted into the groove.

[0032] The insertion protrusion 12, the connecting protrusion 13 and the body 11 can be integrally formed, such as by casting. The groove formed between the connecting protrusion 13 and the insertion protrusion 12 is inserted into the fabric clamping base 20, so that the pressure cover 10 is firmly connected to the fabric clamping base 20, which helps the pressure cover 10 and the fabric clamping base 20 to clamp the fabric.

[0033] Operating steps for using a fabric clamping device to clamp fabric:

[0034] S1. The pressure cover 10 is removed from the clamping base 20;

[0035] S2. Lay the fabric on the fabric base 20. At the current moment, the fabric covers the opening facing upwards in the gap between the two airbags 30.

[0036] S3. The pressure cover 10 is assembled on the fabric clamping base 20, and the insertion protrusion 12 of the pressure cover 10 is inserted into the aforementioned gap. In this way, the airbag 30 under the preset pressure clamps the fabric with the insertion protrusion 12. It should be noted that the airbag 30 can be inflated again to increase the preset pressure of the airbag 30. The airbag 30 expands, and the airbag 30 and the insertion protrusion 12 further clamp the fabric.

[0037] S4. After the fabric embroidery is completed, the air can be released through the airbag 30 to reduce the preset pressure of the airbag 30. The force between the airbag 30 and the insertion protrusion 12 that clamps the fabric is reduced. The pressure cover 10 is then removed from the fabric clamping base 20, and the fabric is removed.

[0038] In this embodiment, the fabric clamping device uses the insertion protrusion 12 of the pressure cover 10 to engage with the gap between the two airbags 30 on the clamping base 20. The fabric is laid on the clamping base 20, and the insertion protrusion 12 is inserted into the gap. The airbags 30, under a preset pressure, clamp the fabric with the insertion protrusion 12. The preset pressure can be adjusted to regulate the angle at which the fabric clamps. Deflating the airbags 30 reduces their preset pressure, decreasing the clamping force between the airbags 30 and the insertion protrusion 12. The pressure cover 10 can then be removed from the clamping base 20, and the fabric can be taken off. This method is simple and convenient, allowing for quick fabric clamping without damaging the fabric, thus avoiding the time-consuming, labor-intensive, and inefficient problems of manual fabric clamping in related technologies.

[0039] The following is at least in conjunction with the accompanying drawings. Figures 1-3 The protrusion 12 is described in detail below:

[0040] The insertion protrusion 12 includes a root 121, an end 123, and a middle part 122 connecting the root 121 and the end 123. The insertion protrusion 12 is distributed with large ends and a small middle.

[0041] like Figure 2 As shown, the insertion protrusion 12 is divided into a root 121, a middle part 122, and an end 123 along its length (from top to bottom), with the insertion protrusion 12 being larger at both ends and smaller in the middle. The connecting chamber 212 includes a first space 212a and a second space 212b arranged vertically. The end 123 is located in the second space 212b, and the middle part 122 is located in the first space 212a. The maximum dimension of the end 123 in the left-right direction is greater than the maximum dimension of the first space 212a in the left-right direction. This creates a stop fit between the airbag 30 under preset pressure and the end 123. The two airbags 30 act as a stop for the end 123, preventing the end 123 from detaching from the two airbags 30, thereby improving the stability of the fabric clamped between the insertion protrusion 12 and the airbags 30; at the same time, it prevents the insertion protrusion 12 from being pushed up by the two airbags. While ensuring performance, reducing the size of the middle part 122 in the left and right directions can reduce the weight of the middle part 122 and help reduce the overall weight of the pressure cover 10.

[0042] Optionally, the cross-section of the end 123 gradually increases and then gradually decreases in the direction from the root 121 to the end 123 (upper and lower).

[0043] like Figure 2As shown, the cross-section of end 123 gradually decreases in the vertical direction, forming a first arc-shaped surface 1233. The first direction is the left-right direction, and the cross-section in the first direction is the cross-section in the left-right direction. The circular axis direction corresponding to the cross-section of the first arc-shaped surface 1233 in the first direction is the vertical direction, which is parallel to the direction from the root 121 to the end 123 (vertical direction).

[0044] When the insertion protrusion 12 is inserted into the gap from top to bottom, the first arc-shaped surface 1233 can guide the end 123 of the insertion protrusion 12 to smoothly insert into the gap, reducing the difficulty of alignment during insertion. Even when the two airbags 30 have different pressure values ​​and form a deformed gap, the insertion protrusion 12 can still be inserted normally. In addition, when the first arc-shaped surface 1233 moves relative to the airbag 30, it can reduce the frictional resistance between the two, making the end 123 of the insertion protrusion 12 move smoothly.

[0045] Optionally, the end 123 surface also includes a first curved surface 1231 connected to the middle portion 122, wherein the center of the circle corresponding to the cross section of the first curved surface 1231 in the first direction and the center corresponding to the first arc surface 1233 are located on the same straight line.

[0046] like Figure 2 As shown, when the insert protrusion 12 clamps the fabric with the airbag 30, the first curved surface 1231 helps to reduce the gap between the airbags 30 in contact with it, so that the first curved surface 1231 and the airbag 30 fit together as closely as possible, thereby increasing the clamping force between the two on the fabric.

[0047] Optionally, the end 123 surface further includes a second curved surface 1232, which is a circular arc transition connecting the first arc surface 1233 and the first curved surface 1231. The maximum value of the circular diameter corresponding to the cross section of the second curved surface 1232 in the first direction is greater than the maximum value of the gap in the first direction.

[0048] like Figure 2 As shown, when the insertion protrusion 12 is inserted into the gap from top to bottom, the second curved surface 1232 can guide the end 123 of the insertion protrusion 12 to smoothly insert into the gap, reducing the difficulty of alignment during insertion. Even when the two airbags 30 have different pressure values ​​and form a deformed gap, the insertion protrusion 12 can still be inserted normally. In addition, when the second curved surface 1232 moves relative to the airbag 30, it can reduce the frictional resistance between the two, making the end 123 of the insertion protrusion 12 move smoothly.

[0049] Wherein, the maximum value of the circular diameter corresponding to the cross section of the second curved surface 1232 in the first direction is greater than the maximum size of the gap in the first direction, so that a stop fit can be formed between the airbag 30 under the preset pressure and the end 123.

[0050] Optionally, the surface of the middle portion 122 is provided with a friction pattern. The friction pattern increases the coefficient of friction between the middle portion 122 and the airbag 30 by changing the surface roughness of the middle portion 122. When the insert protrusion 12 and the airbag 30 clamp the fabric, the friction between the fabric and the insert protrusion 12 is increased, thereby improving the clamping performance of the insert protrusion 12.

[0051] like Figure 2 As shown, the friction pattern includes, but is not limited to, protrusions or strips protruding toward the airbag 30 on the surface of the middle part 122.

[0052] 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.

[0053] 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 fabric clamping device, characterized in that, include: Fabric-reinforced base (20), wherein the fabric-reinforced base (20) is provided with an airbag mounting cavity (21); Airbag (30), two airbags (30) are disposed in the airbag mounting cavity (21), and the two airbags (30) are spaced apart to form a gap; A pressure cover (10) is provided with an insertion protrusion (12) which is inserted into the gap.

2. The fabric clamping device according to claim 1, characterized in that, The insertion protrusion (12) includes a root (121), an end (123), and a middle part (122) connecting the root (121) and the end (123). The insertion protrusion (12) is distributed with large ends and small middle.

3. The fabric clamping device according to claim 2, characterized in that, The cross section of the end (123) gradually increases and then gradually decreases in the direction from the root (121) to the end (123).

4. The fabric clamping device according to claim 3, characterized in that, The end portion (123) surface includes a first arcuate surface (1233), wherein the circular axis direction corresponding to the first arcuate surface (1233) in the first direction cross-section is parallel to the direction from the root portion (121) to the end portion (123). Wherein, the first directional cross section is perpendicular to the direction from the root (121) to the end (123).

5. The fabric clamping device according to claim 4, characterized in that, The end (123) surface also includes a first curved surface (1231) connected to the middle part (122), wherein the center of the circle corresponding to the cross section of the first curved surface (1231) in the first direction is on the same straight line as the center corresponding to the first arc surface (1233).

6. The fabric clamping device according to claim 5, characterized in that, The end (123) surface also has a second curved surface (1232), which is a circular arc transition connecting the first arc surface (1233) and the first curved surface (1231). The maximum value of the circular diameter corresponding to the cross section of the second curved surface (1232) in the first direction is greater than the maximum value of the gap in the first direction.

7. The fabric clamping device according to claim 3, characterized in that, The surface of the middle part (122) is provided with a friction pattern.

8. The fabric clamping device according to claim 7, characterized in that, The friction pattern includes protrusions or strips protruding toward the airbag (30) on the surface of the middle part (122).

9. The fabric clamping device according to claim 1, characterized in that, The airbag mounting cavity (21) includes two spaced-apart mounting chambers (211) and a connecting chamber (212) connecting the two mounting chambers (211). The mounting chambers (211) are elongated, and the airbag (30) is mounted in the mounting chambers (211). The pressure cover (10) also includes a body (11), on which the insertion protrusion (12) is provided, and the length of the insertion protrusion (12) is equal to the length of the airbag (30).

10. The fabric clamping device according to claim 9, characterized in that, The body (11) is also provided with a connecting protrusion (13) parallel to the insertion protrusion (12), and the length of the connecting protrusion (13) is equal to the length of the insertion protrusion (12). The connecting protrusion (13) and the insertion protrusion (12) are arranged in the same direction and a groove is formed between them, and the fabric base (20) is inserted into the groove.

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