Sewing device, its presser foot device, and method for sewing binding strips on sewing pieces

Abstract

The present invention relates to a sewing device and its presser foot device, as well as a method for sewing binding strips on a sewing piece. The presser foot device is provided with a first presser foot and a second presser foot respectively connected to an installation mechanism, and is also provided with an elastic telescopic member. The two ends of the elastic telescopic member are respectively connected to the first presser foot and the installation mechanism so that the first presser foot can approach or move away from the installation mechanism. When sewing the binding strip on the sewing piece, the presser foot at a higher position can be directly pressed on the binding strip, and the presser foot at a lower position can be pressed on the sewing piece, without the need to stick adhesive tapes or paper sheets with corresponding thicknesses on the sewing piece as in the case of using a traditional double-needle flat sewing machine. The operation is simple and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of textile machinery equipment, in particular to a sewing device and its presser foot device, and a method for sewing binding strips on a sewn piece. Background Art

[0002] The presser foot of a sewing machine is an essential component in the feeding mechanism of the sewing machine, and various different types of presser feet play a very important role in the production process. When sewing binding strips on a piece using the flat presser foot of a traditional double-needle lockstitch machine, a part of the presser foot of the sewing machine presses on the binding strip. Since the binding strip is on the piece, the other part of the presser foot is in a suspended state. Usually, the method to deal with this problem is to stick adhesive tapes or paper pieces of corresponding thickness on the piece on the suspended side, so that both sides of the presser foot can press the fabric. However, this method adds extra operations, is rather troublesome, and reduces the production efficiency. Summary of the Invention

[0003] Based on this, it is necessary to provide a sewing device and its presser foot device, and a method for sewing binding strips on a sewn piece, so as to solve the problem that when sewing binding strips on a piece using the flat presser foot of a traditional double-needle lockstitch machine, it is necessary to stick adhesive tapes or paper pieces of corresponding thickness on the piece, resulting in troublesome operations and low production efficiency.

[0004] One of the objectives of the present invention is to provide a presser foot device for a sewing device, and the solution is as follows:

[0005] A presser foot device for a sewing device includes a mounting mechanism, an elastic telescopic member, a first presser foot, and a second presser foot. The mounting mechanism is used to connect to the sewing head of the sewing device. The first presser foot and the second presser foot are respectively connected to the mounting mechanism. Both ends of the elastic telescopic member are respectively connected to the first presser foot and the mounting mechanism so that the first presser foot can approach or move away from the mounting mechanism.

[0006] Compared with the existing solution, the presser foot device of the sewing device described above is provided with a first presser foot and a second presser foot respectively connected to the mounting mechanism, and an elastic telescopic member is also provided. Both ends of the elastic telescopic member are respectively connected to the first presser foot and the mounting mechanism so that the first presser foot can approach or move away from the mounting mechanism. When sewing binding strips on a piece, the presser foot at a higher position can be directly pressed on the binding strip, and the presser foot at a lower position can be pressed on the piece, without sticking adhesive tapes or paper pieces of corresponding thickness on the piece as in the case of using a traditional double-needle lockstitch machine. The operation is simple and the production efficiency is improved.

[0007] In one embodiment, when the mounting mechanism is in a natural state, that is, in a state of not pressing the fabric, the first presser foot is farther away from the mounting mechanism than the second presser foot.

[0008] When using the pressing device of the above example to sew the binding on the sewing piece, the position of the first presser foot is lower and movable. Therefore, the first presser foot presses the sewing piece, and the second presser foot presses the binding.

[0009] In one embodiment, the mounting mechanism includes a head mounting component, a first connecting piece, a second connecting piece, a third connecting piece, and a mounting shaft. The head mounting component is used to connect with the sewing head of the sewing equipment. The third connecting piece is connected to the head mounting component. The first connecting piece is connected to the first presser foot. The second connecting piece is connected to the second presser foot. The first connecting piece has a first mounting hole. The second connecting piece has a second mounting hole. The third connecting piece has a third mounting hole. The mounting shaft passes through the first mounting hole, the second mounting hole, and the third mounting hole to connect the first connecting piece, the second connecting piece, and the third connecting piece. The first mounting hole is a strip-shaped hole so that the first connecting piece can move relative to the mounting shaft. The opposite ends of the elastic telescopic member are respectively connected to the third connecting piece and the first presser foot. When the mounting mechanism is in a natural state, the elastic telescopic member is in a natural state or a compressed state, and the mounting shaft abuts against the hole wall of the end of the first mounting hole far from the first presser foot.

[0010] When the pressing device of the above example presses on the binding on the sewing piece, the first presser foot can press on the sewing piece. At the same time, the pressing device can adapt to bindings of a certain thickness. For example, when the thickness of the binding decreases, the elastic telescopic member can be further compressed, and the first presser foot presses on the sewing piece under the elastic force of the elastic telescopic member.

[0011] In one embodiment, the first mounting hole is an oval hole, and the above-mentioned second mounting hole and the third mounting hole are round holes.

[0012] In one embodiment, the third connecting piece is annular. The third connecting piece surrounds the first connecting piece and the second connecting piece. The third connecting piece has at least two third mounting holes. The mounting shaft sequentially passes through one of the third mounting holes, the first mounting hole, the second mounting hole, and the other third mounting hole.

[0013] In one embodiment, the first connecting piece and the second connecting piece are block-shaped structures.

[0014] In one embodiment, the first connecting piece protrudes towards the second presser foot. When the mounting mechanism is in a natural state, the protruding part of the first connecting piece abuts against the second presser foot.

[0015] In one embodiment, the elastic telescopic member is a spring.

[0016] In one embodiment, a first accommodation groove is provided on one side of the first presser foot facing the third connecting member, a second accommodation groove is provided on one side of the third connecting member facing the first presser foot, and opposite ends of the elastic telescopic member respectively extend into the first accommodation groove and the second accommodation groove.

[0017] In one embodiment, opposite ends of the elastic telescopic member respectively abut against the bottom of the first accommodation groove and the bottom of the second accommodation groove.

[0018] In one embodiment, there are multiple elastic telescopic members, such as 2, 3, 4, etc. The multiple elastic telescopic members are at least distributed on opposite sides of the first connecting member.

[0019] In one embodiment, the first presser foot is provided with a first needle dropping hole, and the second presser foot is provided with a second needle dropping hole.

[0020] In one embodiment, one end of the first presser foot has a first upturned portion, and one end of the second presser foot has a second upturned portion.

[0021] Another object of the present invention is to provide a sewing device, and the solution is as follows:

[0022] A sewing device, the sewing device includes a machine base, a sewing head, and the pressing device according to any one of the above embodiments. The sewing head is arranged on the machine base, and the installation mechanism of the pressing device is connected to the sewing head.

[0023] The above sewing device includes the above pressing device, so corresponding technical effects can be obtained.

[0024] In one embodiment, the sewing device is a double needle flat sewing machine.

[0025] Another object of the present invention is to provide a method for sewing a binding strip on a sewn piece, and the solution is as follows:

[0026] A method for sewing a binding strip on a sewn piece, using the sewing device according to any one of the above embodiments for sewing. When sewing, the presser foot at a higher position is pressed on the binding strip, and the presser foot at a lower position is pressed on the sewn piece.

[0027] The above method for sewing a binding strip on a sewn piece uses the above sewing device, so corresponding technical effects can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of a pressing device for an embodiment, Figure 1 The elastic telescopic member and the mounting shaft are omitted;

[0029] Figure 2 is Figure 1 a schematic structural view of another perspective of the cloth pressing device shown, Figure 2 the head mounting component, the elastic telescopic component, and the third connecting component are omitted.

[0030] Explanation of reference numerals:

[0031] 100, cloth pressing device; 110, first presser foot; 120, second presser foot; 130, head mounting component; 140, first connecting component; 141, protruding part; 142, first mounting hole; 150, second connecting component; 160, third connecting component; 162, third mounting hole; 170, mounting shaft; 112, first accommodating groove; 114, first needle dropping hole; 122, second needle dropping hole; 116, first upwardly curved part; 124, second upwardly curved part. Detailed implementation manners

[0032] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0034] In the description of the present invention, it should be understood that the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include at least one of the features.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] The present invention provides a cloth pressing device 100 for a sewing device, which is applicable to sewing a binding strip on a cut piece by a double needle sewing machine.

[0037] Please refer to Figure 1 andFigure 2 As shown in Figure 2 , a cloth pressing device 100 according to an embodiment of the present invention includes a mounting mechanism, an elastic telescopic member (not shown in the figure), a first presser foot 110, and a second presser foot 120.

[0038] The mounting mechanism is used to connect to the sewing head of a sewing device.

[0039] Specifically, in the present invention, the cloth pressing device 100 includes a first presser foot 110 and a second presser foot 120, and the first presser foot 110 and the second presser foot 120 are respectively connected to the mounting mechanism. More specifically, the first presser foot 110 and the second presser foot 120 are arranged side by side. The cloth pressing device 100 is provided with an elastic telescopic member, and both ends of the elastic telescopic member are respectively connected to the first presser foot 110 and the mounting mechanism so that the first presser foot 110 can approach or move away from the mounting mechanism.

[0040] The above-mentioned cloth pressing device 100 of the sewing device is provided with a first presser foot 110 and a second presser foot 120 respectively connected to the mounting mechanism, and is also provided with an elastic telescopic member. Both ends of the elastic telescopic member are respectively connected to the first presser foot 110 and the mounting mechanism so that the first presser foot 110 can approach or move away from the mounting mechanism. When sewing a binding strip on a cut piece, the presser foot with a higher position can directly press on the binding strip, and the presser foot with a lower position can press on the cut piece, without the need to stick corresponding thickness of adhesive tape or paper on the cut piece as in a traditional double needle flat sewing machine, which is easy to operate and improves production efficiency.

[0041] As Figure 1 shown, in one example, when the mounting mechanism is in a natural state, that is, in a state of not pressing the cloth, the first presser foot 110 is farther away from the mounting mechanism than the second presser foot 120. In this example, when sewing a binding strip on a cut piece, the position of the first presser foot 110 is lower and it can move, so the first presser foot 110 presses on the cut piece and the second presser foot 120 presses on the binding strip.

[0042] In other examples, when the mounting mechanism is in a natural state, it may also be that the second presser foot 120 is farther away from the mounting mechanism than the first presser foot 110. Correspondingly, when sewing a binding strip on a cut piece, the position of the first presser foot 110 is higher and it can move, so the first presser foot 110 presses on the binding strip and the second presser foot 120 presses on the cut piece.

[0043] Please refer to Figure 1 and Figure 2 , in one example, the mounting mechanism includes a head mounting component 130, a first connecting member 140, a second connecting member 150, a third connecting member 160, and a mounting shaft 170. It should be noted that Figure 1 the elastic telescopic member and the mounting shaft are omitted in Figure 2 the head mounting component, the elastic telescopic member, and the third connecting member are omitted in

[0044] The head mounting component 130 is used to connect with the sewing head of the sewing equipment.

[0045] The first connecting member 140 is connected to the first presser foot 110 and has a first mounting hole 142. The second connecting member 150 is connected to the second presser foot 120 and has a second mounting hole (not shown).

[0046] The third connecting member 160 is connected to the machine head mounting component 130. The third connecting member 160 is provided with a third mounting hole 162. The mounting shaft 170 is inserted through the first mounting hole 142, the second mounting hole 142, and the third mounting hole 162 to connect the first connecting member 140, the second connecting member 150, and the third connecting member 160, thereby connecting the first presser foot 110, the second presser foot 120 to the machine head mounting component 130.

[0047] The first mounting hole 142 is a strip-shaped hole to enable the first connecting member 140 to move relative to the mounting shaft 170 . The opposite ends of the elastic member are respectively connected to the third connecting member 160 and the first presser foot 110 .

[0048] When the mounting mechanism is in its natural state, the elastic member is in its natural or compressed state, and the mounting shaft 170 abuts the wall of the first mounting hole 142 at the end away from the first presser foot 110. This allows the first presser foot 110 to press against the cut piece when the cloth pressing device 100 presses down on the strapping strip. Furthermore, the cloth pressing device 100 can accommodate strapping strips of varying thickness. For example, as the strapping strip thickness decreases, the elastic member can be further compressed, and the first presser foot 110, under the elastic force of the elastic member, presses against the cut piece.

[0049] It can be understood that when the mounting mechanism is in the natural state, the height difference between the first presser foot 110 and the second presser foot 120 can be designed according to specific needs.

[0050] exist Figure 1 In the illustrated embodiment, the third connecting member 160 is annular and surrounds the first connecting member 140 and the second connecting member 150. The third connecting member 160 is provided with at least two third mounting holes 162. The mounting shaft 170 is sequentially inserted through one of the third mounting holes 162, the first mounting hole 142, the second mounting hole, and another third mounting hole 162. This allows the third connecting member 160 to more securely connect the first connecting member 140 and the second connecting member 150, and the center hole of the third connecting member 160 also serves as a clearance hole for the movement of the first connecting member 140.

[0051] exist Figure 1 In the specific example shown, the first connecting member 140 and the second connecting member 150 are block-shaped structures.

[0052] As Figure 2 shown, in one example, the first connecting member 140 protrudes towards the second presser foot 120, forming a protruding portion 141 above the second presser foot 120. When the installation mechanism is in the natural state, the protruding portion 141 of the first connecting member 140 abuts against the second presser foot 120. By the protruding portion 141 of the first connecting member 140 abutting against the second presser foot 120, the position of the first presser foot 110 is restricted.

[0053] In one example, the mounting shaft 170 is threadedly connected to the second mounting hole.

[0054] In one example, the mounting shaft 170 is threadedly connected to the third mounting hole 162.

[0055] In other examples, the second mounting hole and the third mounting hole 162 can also be non-threaded holes. The mounting shaft 170 is provided with threads. After the mounting shaft 170 passes through, it is fastened by bolts. Alternatively, the shaft surface of the mounting shaft 170 is smooth, and the second mounting hole and the third mounting hole 162 are non-threaded holes.

[0056] In Figure 1 the specific example shown, the mounting shaft 170 is cylindrical, the first mounting hole 142 is a waist-shaped hole, and the second mounting hole and the third mounting hole 162 are circular holes.

[0057] In one example, the elastic telescopic member is a spring.

[0058] As Figure 1 and Figure 2 shown, in one example, a first receiving groove 112 is provided on one side of the first presser foot 110 facing the third connecting member 160, and a second receiving groove (not shown in the figure) is provided on one side of the third connecting member 160 facing the first presser foot 110. The opposite ends of the elastic telescopic member respectively extend into the first receiving groove 112 and the second receiving groove.

[0059] The opposite ends of the elastic telescopic member respectively abut against the bottom of the first receiving groove 112 and the bottom of the second receiving groove. It can be understood that in other examples, the opposite ends of the elastic telescopic member can also be fixedly connected to at least one of the first presser foot 110 and the third connecting member 160.

[0060] Optionally, the number of elastic telescopic members is not limited to one, and there can be multiple, such as 2, 3, 4, etc.

[0061] In one example, there are multiple elastic telescopic members, and the multiple elastic telescopic members are at least distributed on both sides of the first connecting member 140.

[0062] In Figure 1In the specific example shown, the number of elastic telescopic members is two, and the two elastic telescopic members are respectively located on opposite sides of the first connecting member 140.

[0063] As Figure 1 and Figure 2 shown, in one example, the first presser foot 110 is provided with a first needle insertion hole 114, and the second presser foot 120 is provided with a second needle insertion hole 122. The first needle insertion hole 114 and the second needle insertion hole 122 are used for the sewing needle to pierce the fabric under the presser foot. More specifically, the first needle insertion hole 114 and the second needle insertion hole 122 are waist-shaped holes.

[0064] As Figure 1 and Figure 2 shown, in one example, one end of the first presser foot 110 has a first upwardly curved portion 116, and one end of the second presser foot 120 has a second upwardly curved portion 124.

[0065] The presser foot device 100 of the above sewing equipment is provided with a first presser foot 110 and a second presser foot 120 respectively connected to the mounting mechanism, and is also provided with an elastic telescopic member. The two ends of the elastic telescopic member are respectively connected to the first presser foot 110 and the mounting mechanism so that the first presser foot 110 can approach or move away from the mounting mechanism. When sewing a binding strip on a sewing piece, the presser foot at a higher position can be directly pressed on the binding strip, and the presser foot at a lower position can be pressed on the sewing piece, without the need to paste a corresponding thickness of adhesive tape or paper piece on the sewing piece as in a traditional double needle flat sewing machine, which is simple to operate and improves production efficiency.

[0066] Furthermore, the present invention provides a sewing equipment, which includes a machine base, a sewing head and the presser foot device 100 of any one of the above examples. Among them, the sewing head is arranged on the machine base, and the mounting mechanism of the presser foot device 100 is connected to the sewing head.

[0067] The above sewing equipment includes the above presser foot device, so corresponding technical effects can be obtained.

[0068] In one example, the sewing equipment is a double needle flat sewing machine.

[0069] Furthermore, the present invention provides a method for sewing a binding strip on a sewing piece, and this method uses the above sewing equipment for sewing.

[0070] More specifically, when sewing, the presser foot at a higher position is pressed on the binding strip, and the presser foot at a lower position is pressed on the sewing piece. For example, in Figure 1 the specific example shown, when sewing, the first presser foot 110 is pressed on the sewing piece, and the second presser foot 120 is pressed on the binding strip.

[0071] The above method for sewing a binding strip on a sewing piece uses the above sewing equipment, so corresponding technical effects can be obtained.

[0072] The following further describes the present invention with a specific example of a sewing device and its presser foot device 100.

[0073] Specific Example 1

[0074] This example provides a presser foot device 100 for a sewing device.

[0075] The presser foot device 100 includes a mounting mechanism, an elastic telescopic member, a first presser foot 110, and a second presser foot 120. Among them, the mounting mechanism includes a head mounting member 130, a first connecting member 140, a second connecting member 150, a third connecting member 160, and a mounting shaft 170.

[0076] The head mounting member 130 is used to connect with the sewing head of the sewing device.

[0077] The first connecting member 140 is a block provided on the first presser foot 110. The first connecting member 140 is provided with a first mounting hole 142, and the first mounting hole 142 is an elongated hole. The second connecting member 150 is a block provided on the second presser foot 120. The second connecting member 150 is provided with a second mounting hole, and the second mounting hole is a circular hole.

[0078] The third connecting member 160 is connected to the head mounting member 130. The third connecting member 160 is annular. The third connecting member 160 surrounds the first connecting member 140 and the second connecting member 150. The third connecting member 160 is provided with two third mounting holes 162, and the third mounting holes 162 are circular holes. The mounting shaft 170 sequentially passes through one of the third mounting holes 162, the first mounting hole 142, the second mounting hole, and the other third mounting hole 162 to connect the first connecting member 140, the second connecting member 150, and the third connecting member 160.

[0079] Since the first mounting hole 142 on the first connecting member 140 is an elongated hole, the first connecting member 140 can move relative to the mounting shaft 170.

[0080] The elastic telescopic member is a spring. The opposite ends of the elastic telescopic member are respectively connected to the third connecting member 160 and the first presser foot 110. A first accommodating groove 112 is provided on one side of the first presser foot 110 facing the third connecting member 160. A second accommodating groove is provided on one side of the third connecting member 160 facing the first presser foot 110. The opposite ends of the elastic telescopic member respectively abut against the bottom of the first accommodating groove 112 and the bottom of the second accommodating groove. The number of elastic telescopic members is two, and the two elastic telescopic members are respectively located on opposite sides of the first connecting member 140.

[0081] When the installation mechanism is in the natural state, the elastic telescopic member is in the natural state or the compressed state and the installation shaft 170 abuts against the hole wall at one end of the first installation hole 142 away from the first presser foot 110.

[0082] The first presser foot 110 is provided with a first needle dropping hole 114, and the second presser foot 120 is provided with a second needle dropping hole 122. One end of the first presser foot 110 has a first upturned portion 116, and one end of the second presser foot 120 has a second upturned portion 124.

[0083] Specific Example 2

[0084] This example provides a sewing device.

[0085] The sewing device of this example is a double needle lockstitch sewing machine, including a machine base, a sewing machine head, and the pressing device 100 in Specific Example 1. Among them, the sewing machine head is arranged on the machine base, and the installation mechanism of the pressing device 100 is connected to the sewing machine head.

[0086] When using the sewing device of this example to sew the binding strip on the cut piece, press the first presser foot 110 on the cut piece and press the second presser foot 120 on the binding strip.

[0087] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0088] The above-described embodiments only represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limitations on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. A cloth pressing device for a sewing device, characterized in that: The cloth pressing device includes a mounting mechanism, an elastic telescopic member, a first presser foot, and a second presser foot. The mounting mechanism is used to connect to the sewing machine head of the sewing device. The first presser foot and the second presser foot are respectively connected to the mounting mechanism. The two ends of the elastic telescopic member are respectively connected to the first presser foot and the mounting mechanism so that the first presser foot can move closer to or farther away from the mounting mechanism. When the mounting mechanism is in a natural state, the first presser foot is farther away from the mounting mechanism than the second presser foot. The mounting mechanism includes a head mounting component, a first connecting member, a second connecting member, a third connecting member and a mounting shaft, the head mounting component is used to be connected to the sewing machine head of the sewing device, the third connecting member is connected to the head mounting component, the first connecting member is connected to the first presser foot, the second connecting member is connected to the second presser foot, the first connecting member is provided with a first mounting hole, the second connecting member is provided with a second mounting hole, and the third connecting member is provided with a third mounting hole, the mounting shaft is passed through the first mounting hole, the second mounting hole and the third mounting hole to connect the first connecting member, the second connecting member and the third connecting member, the first mounting hole is a strip-shaped hole so that the first connecting member can move relative to the mounting shaft, and the opposite ends of the elastic telescopic member are respectively connected to the third connecting member and the first presser foot; when the mounting mechanism is in a natural state, the elastic telescopic member is in a natural state or a compressed state and the mounting shaft abuts against the hole wall of the first mounting hole at an end away from the first presser foot; The first connecting member protrudes toward the second presser foot, and when the mounting mechanism is in a natural state, the protruding portion of the first connecting member abuts against the second presser foot.

2. The cloth pressing device according to claim 1, characterized in that: The third connecting member is annular and is arranged around the first connecting member and the second connecting member. At least two third mounting holes are provided on the third connecting member, and the mounting shaft is sequentially passed through one of the third mounting holes, the first mounting hole, the second mounting hole and the other third mounting hole.

3. The cloth pressing device according to claim 1, characterized in that: The elastic telescopic member is a spring.

4. The cloth pressing device according to claim 3, characterized in that: A first accommodating groove is provided on the side of the first presser foot facing the third connecting member, and a second accommodating groove is provided on the side of the third connecting member facing the first presser foot. The opposite ends of the elastic telescopic member extend into the first accommodating groove and the second accommodating groove respectively.

5. The cloth pressing device according to claim 4, characterized in that: The opposite ends of the elastic stretchable member are respectively in contact with the bottom of the first accommodating groove and the bottom of the second accommodating groove.

6. The cloth pressing device according to claim 1, characterized in that: There are multiple elastic stretchable parts, and the multiple elastic stretchable parts are distributed at least on two opposite sides of the first connecting part.

7. The cloth pressing device according to any one of claims 1 to 6, characterized in that: The first presser foot is provided with a first needle drop hole, and the second presser foot is provided with a second needle drop hole.

8. The cloth pressing device according to any one of claims 1 to 6, characterized in that: One end of the first presser foot has a first upwardly curved portion.

9. The cloth pressing device according to any one of claims 1 to 6, characterized in that: One end of the second presser foot has a second upwardly curved portion.

10. A sewing device, characterized in that: The sewing equipment includes a machine base, a sewing machine head, and a cloth pressing device according to any one of claims 1 to 9, wherein the sewing machine head is arranged on the machine base, and the mounting mechanism of the cloth pressing device is connected to the sewing machine head.

11. A method for sewing a binding strip on a cut piece, characterized in that: Sewing is performed using the sewing device as claimed in claim 10.

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