An installation and fixing jig and method for a hook piece

Abstract

The present invention discloses a hook piece installation and fixing fixture and method, belonging to the technical field of electronic products. The hook piece installation and fixing fixture comprises a base plate, a first cover plate and a second cover plate arranged on the base plate. The base plate is provided with a first avoidance hole, a first positioning portion and a second positioning portion. The base plate is used to carry the product to be sewn. The hook piece is arranged on the side of the flexible braided belt away from the base plate. The first positioning portion is used to position the flexible braided belt, and the second positioning portion is used to position the carrier film. The flexible braided belt is exposed to the outside through the first avoidance hole; the first cover plate is covered on the flexible braided belt so that the flexible braided belt is clamped between the first cover plate and the base plate, and the second cover plate is covered on the hook piece with the carrier film removed so that the product to be sewn is clamped between the second cover plate and the base plate. The second cover plate is provided with a second avoidance hole that can be connected to the first avoidance hole. The hook piece is exposed to the outside through the second avoidance hole, which improves the connection strength and position accuracy between the hook piece and the flexible braided belt.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic products, and in particular to a hook piece installation and fixing fixture and method. Background Art

[0002] Since the hook sheet is easy to bond and peel off, it is widely used in flexible braided belts of high-precision electronic devices. The flexible braided belt is made of PET (polyethylene terephthalate), TPU (thermoplastic polyurethane rubber) or PA (polyamide) and other similar plastics. In the related art, the hook sheet and the flexible braided belt are mostly connected by gluing, welding or sewing. However, when glue is used for bonding, the original characteristics of the flexible braided belt cannot be retained. When the welding process is used, the braided wire materials in the area to be welded of the flexible braided belt are different or the pattern is complex, resulting in insufficient bonding strength between the hook sheet and the flexible braided belt, and the hook sheet needs to be sunk into the flexible braided belt during welding, which causes greater damage to the flexible braided belt. When the sewing process is used, the sewing needle drop and needle lift force is large, which may cause the hook sheet to tear, thereby causing the hook sheet to shift in position.

[0003] Therefore, there is an urgent need for a hook piece installation and fixing fixture and method to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a hook piece installation and fixing fixture and method, which can improve the connection strength and position accuracy of the hook piece and the flexible braided belt.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] On the one hand, a hook piece installation and fixing fixture is provided, wherein the product to be sewn comprises a flexible braided belt and a hook piece protruding from the flexible braided belt, a carrier film is provided with a limiting groove adapted to the shape of the hook piece, the carrier film is detachably connected to the product to be sewn, so that the limiting groove is used to limit the hook piece, and the hook piece installation and fixing fixture comprises:

[0007] A bottom plate, which is provided with a first avoidance hole, a first positioning portion and a second positioning portion, the bottom plate is used to carry the product to be sewn, the hook piece is arranged on the side of the flexible braid away from the bottom plate, the first positioning portion is used to position the flexible braid, the second positioning portion is used to position the carrier film, and the flexible braid is exposed to the outside through the first avoidance hole;

[0008] A first cover plate and a second cover plate are provided on the bottom plate. The first cover plate covers the flexible woven belt so that the flexible woven belt is clamped between the first cover plate and the bottom plate. The second cover plate covers the hook piece after removing the carrier film, so that the product to be sewn is clamped between the second cover plate and the bottom plate. The second cover plate is provided with a second avoidance hole that can communicate with the first avoidance hole, and the hook piece is exposed to the outside through the second avoidance hole.

[0009] In some possible implementation manners, the hook piece is provided at the middle part of the flexible woven belt, and there are two first cover plates, and the two first cover plates are provided on both sides of the second cover plate.

[0010] In some possible implementation manners, the first cover plate is provided with a first avoidance space for avoiding the first positioning portion, and the second cover plate is provided with a second avoidance space for avoiding the second positioning portion.

[0011] In some possible implementation manners, a crimping assembly is further included. One end of the first cover plate is hinged to the bottom plate, and the other end is crimped to the bottom plate through the crimping assembly; and / or, two crimping assemblies are further included, and both ends of the second cover plate are crimped to the bottom plate through the crimping assembly.

[0012] In some possible implementation manners, the crimping assembly includes a fixed block, a rotating shaft and a pressing plate. The fixed block is fixed to the bottom plate, the pressing plate is rotatably connected to the rotating shaft, the pressing plate is clamped between the bottom plate and the fixed block, and the pressing plate is provided with a pressing portion for crimping.

[0013] On the other hand, a method for installing and fixing a hook piece is provided. Using the jig for installing and fixing the hook piece as described above, the method for installing and fixing the hook piece includes:

[0014] Weld the hook piece to the flexible woven belt to form a product to be sewn, so that the hook piece protrudes from the flexible woven belt;

[0015] Place the product to be sewn on the bottom plate, so that the flexible woven belt is positioned at the first positioning portion. Since the product to be sewn is provided with a carrier film, the hook piece is limited in the limiting groove and the carrier film is limited in the second positioning portion;

[0016] Cover the first cover plate on the flexible woven belt, so that the flexible woven belt is clamped between the first cover plate and the bottom plate;

[0017] Remove the carrier film, cover the second cover plate on the hook piece, so that the product to be sewn is clamped between the second cover plate and the bottom plate;

[0018] Place the fixture on the loading table of the sewing machine, and the sewing machine sews the parts of the product to be sewn that are exposed in the first avoidance hole and the second avoidance hole.

[0019] In some possible implementation manners, before welding the hook piece to the flexible braided belt, it further includes:

[0020] Cut the hook piece so that the hook piece has a preset shape, and a plurality of path position holes are formed on the hook piece, and the plurality of path position holes are adapted to the sewing path.

[0021] In some possible implementation manners, the hook piece is arranged at the middle part of the flexible braided belt, there are two first covers, and the two first covers are arranged on both sides of the second cover along the first direction. When covering the first cover on the flexible braided belt, it further includes:

[0022] The flexible braided belt is positioned at the first positioning part on the first side of the hook piece, and cover one first cover on the first side of the flexible braided belt;

[0023] Pull the flexible braided belt on the second side of the hook piece to straighten the flexible braided belt along the first direction;

[0024] Cover the other first cover on the second side of the flexible braided belt.

[0025] In some possible implementation manners, between placing the product to be sewn on the bottom plate and covering the first cover on the flexible braided belt, it further includes:

[0026] Place the carrier film on the product to be sewn and the bottom plate, so that the hook piece is limited in the limit groove and the carrier film is limited in the second positioning part.

[0027] In some possible implementation manners, when welding the hook piece to the flexible braided belt, the welding area is located in the area where the material of the hook piece is the same as the material of the flexible braided belt.

[0028] Advantages of the present invention:

[0029] An installation and fixing jig and method for a hook piece provided by the present invention. The hook piece and the flexible braided belt are exposed to the outside through the first avoidance hole and the second avoidance hole, so that sewing can be realized. The hook piece and the flexible braided belt are connected by sewing, which improves the connection strength between the two. When in use, the product to be sewn is placed on the bottom plate and positioned in cooperation with the first positioning part. The carrier film is placed on the product to be sewn and the bottom plate, and is positioned in cooperation with the hook piece and the second positioning part respectively, so as to ensure accurate positioning between the product to be sewn and the bottom plate. The flexible braided belt is clamped on the bottom plate by the first cover plate, and the hook piece and the flexible braided belt are clamped on the bottom plate by the second cover plate, ensuring that the product to be sewn does not loosen and preventing the hook piece and the flexible braided belt from shifting during subsequent sewing.

[0030] The hook piece and the flexible braided belt are welded to achieve preliminary positioning and preliminary bonding, and then connected by sewing to increase the connection strength. Two bonding methods of welding and sewing are adopted, which improves the connection reliability and solves the problems that the woven materials at the bonding positions of the hook pieces required by the flexible braided belt are diverse, the woven pattern styles are diverse, and a single welding cannot ensure the connection strength. Through pre-welding and positioning and clamping the product to be sewn by the installation and fixing jig of the hook piece, the position shift of the hook piece during sewing is avoided. Description of the Drawings

[0031] Figure 1 is a schematic diagram of the installation and fixing jig for the hook piece provided by the specific embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of the second cover plate provided by the specific embodiment of the present invention;

[0033] Figure 3 is a schematic diagram of the bottom plate provided by the specific embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of the carrier film provided by the specific embodiment of the present invention;

[0035] Figure 5 is a schematic diagram of the first cover plate provided by the specific embodiment of the present invention;

[0036] Figure 6 is a flowchart of the installation and fixing method for the hook piece provided by the specific embodiment of the present invention.

[0037] In the figure:

[0038] 100. Product to be sewn; 101. Flexible braided belt; 102. Hook piece; 1021. Path point hole;

[0039] 200, Film carrier; 201, Loading sheet; 2011, Limit groove; 202, Release film; 200A, First limit hole; 200B, Second limit hole;

[0040] 1, Bottom plate; 11, First avoidance hole; 12, First positioning part; 13, Second positioning part; 14, Installation part; 15, Limit pin shaft; 16, Accommodation groove;

[0041] 2, First cover plate; 21, First avoidance space; 22, First opening;

[0042] 3, Second cover plate; 31, Second avoidance space; 32, Second avoidance hole; 33, Second opening;

[0043] 4, Crimping assembly; 41, Fixed block; 411, First fixing part; 412, Second fixing part; 42, Rotating shaft; 43, Pressing plate; 431, Pressing part;

[0044] 5, Adapter plate; 51, First long hole; 6, Adapter block; 61, Second long hole. Detailed implementation mode

[0045] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0046] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] like Figures 1 - 5 As shown, the product 100 to be sewn includes a flexible braided belt 101 and a hook piece 102 protruding from the flexible braided belt 101. Specifically, the hook piece 102 can be bonded to the flexible braided belt 101 by welding. The carrier film 200 is provided with a limiting groove 2011 adapted to the shape of the hook piece 102. The carrier film 200 can be detachably connected to the product 100 to be sewn, so that the limiting groove 2011 is used to limit the hook piece 102. This embodiment provides a mounting fixture for the hook piece, which includes a base plate 1 and a first cover plate 2 and a second cover plate 3 both arranged on the base plate 1. The base plate 1 is provided with a first positioning portion 12 and a second positioning portion 13. The base plate 1 is used to carry the product 100 to be sewn. The hook piece 102 is arranged on the side of the flexible braided belt 101 away from the base plate 1. The first positioning portion 12 is used to position the flexible braided belt 101, and the second positioning portion 13 is used to position the carrier film 200. When in use, the product to be sewn 100 is placed on the base plate 1 and cooperates with the first positioning portion 12 to achieve positioning. The carrier film 200 is placed on the product to be sewn 100 and the base plate 1 and cooperates with the hook piece 102 and the second positioning portion 13 to achieve positioning, thereby ensuring accurate positioning between the product to be sewn 100 and the base plate 1.

[0049] The first cover plate 2 is covered on the flexible braided belt 101 so that the flexible braided belt 101 is sandwiched between the first cover plate 2 and the bottom plate 1, and the second cover plate 3 is covered on the hook piece 102 with the carrier film 200 removed so that the product to be sewn 100 is sandwiched between the second cover plate 3 and the bottom plate 1. The first cover plate 2 is used to clamp the flexible braided belt 101 on the bottom plate 1, and the second cover plate 3 is used to clamp the hook piece 102 and the flexible braided belt 101 on the bottom plate 1, so as to ensure that the product to be sewn 100 is not loose, and to prevent the hook piece 102 and the flexible braided belt 101 from being offset during subsequent sewing.

[0050] The bottom plate 1 is provided with a first avoidance hole 11, and the flexible braided belt 101 is exposed to the outside through the first avoidance hole 11. The second cover plate 3 is provided with a second avoidance hole 32 that can communicate with the first avoidance hole 11, and the hook piece 102 is exposed to the outside through the second avoidance hole 32. The hook piece 102 and the flexible braided belt 101 are exposed to the outside through the first avoidance hole 11 and the second avoidance hole 32, so that sewing can be realized. The hook piece 102 and the flexible braided belt 101 are connected by sewing, which improves the connection strength between the two. Further, the shapes of the first avoidance hole 11 and the second avoidance hole 32 may be the same or different. Exemplarily, as Figures 2 - 4 shown, the shape of the first avoidance hole 11 is a runway shape, the shape of the second avoidance hole 32 is a hexagon, and the shape of the sewing path is a hexagon. The shapes of the three are not exactly the same. Preferably, the shapes of the two are the same and the same as the sewing path, such as the first avoidance hole 11, the second avoidance hole 32, and the sewing path are all in the shape of a runway or all in the shape of a hexagon, etc.

[0051] As Figure 4 shown, further, a plurality of path point holes 1021 are formed in the hook piece 102. The path point holes 1021 are the sewing needle dropping path points. The plurality of path point holes 1021 form a sewing path. The sewing path is located inside the first avoidance hole 11 and the second avoidance hole 32, and the shapes of the three are adapted to each other. The opening of the second avoidance hole 32 is slightly smaller than the outer dimension of the hook piece 102, so that the second cover plate 3 can be pressed against the outer ring of the hook piece 102, which will not affect sewing.

[0052] As Figure 1 shown, the hook piece 102 is arranged in the middle part of the flexible braided belt 101. There are two first cover plates 2, and the two first cover plates 2 are arranged on both sides of the second cover plate 3 along the first direction. In this embodiment, the flexible braided belt 101 is taken as an example of the strap of an electronic watch for exemplary illustration, and the first direction is the length direction of the strap. By increasing the number of the first cover plates 2, the clamping force of the product 100 to be sewn is improved, and the reliability is ensured. Optionally, first use one first cover plate 2 to clamp the flexible braided belt 101, then straighten the flexible braided belt 101 along the first direction, and then use another first cover plate 2 to clamp the flexible braided belt 101, further reducing the movement amount of the flexible braided belt 101 and preventing the hook piece 102 from shifting from the flexible braided belt 101 during sewing.

[0053] As Figure 1As shown in the figure, one end of the first cover plate 2 is hinged to the bottom plate 1, and the other end is detachably connected to the bottom plate 1. The installation and fixing jig for the hook piece further includes a crimping assembly 4. One end of the first cover plate 2 is hinged to the bottom plate 1, and the other end is crimped to the bottom plate 1 through the crimping assembly 4, which is convenient for operation. Further, the first cover plate 2 is provided with a first opening 22, and the bottom plate 1 is provided with a limit pin 15. When the first cover plate 2 is flipped and covered on the flexible braided belt 101, the first opening 22 is sleeved on the limit pin 15, and then it is crimped through the crimping assembly 4 to prevent the first cover plate 2 from shifting during the crimping process.

[0054] As Figure 1 shown, in an embodiment, the crimping assembly 4 includes a fixed block 41, a rotating shaft 42 and a pressing plate 43. The fixed block 41 is fixed to the bottom plate 1, the pressing plate 43 is rotatably connected to the rotating shaft 42, the pressing plate 43 is clamped between the bottom plate 1 and the fixed block 41, the pressing plate 43 is provided with a pressing part 431 for crimping. When the pressing plate 43 is in one position, the pressing part 431 crimps the first cover plate 2 to fix the first cover plate 2. When the pressing plate 43 is in another position, the pressing part 431 disengages from the first cover plate 2, and the first cover plate 2 can move. Further, the fixed block 41 includes a first fixing part 411 and a second fixing part 412 connected in an L shape. The first fixing part 411 is connected to the bottom plate 1 through fasteners such as bolts, and the second fixing part 412 is spaced from the bottom plate 1. The pressing part 431 extends out of one side of the pressing plate 43, and the pressing part 431 forms a 90° angle with the pressing plate 43. The pressing plate 43 is clamped between the second fixing part 412 and the bottom plate 1, the rotating shaft 42 is fixed to the second fixing part 412 and the bottom plate 1, and the pressing plate 43 is rotatably connected to the rotating shaft 42. When the pressing plate 43 is perpendicular to the first fixing part 411, the pressing part 431 is used to press the first cover plate 2. When the pressing plate 43 rotates 90° towards the first fixing part 411 to be parallel to the first fixing part 411, the pressing part 431 is used to disengage from the first cover plate 2.

[0055] Both ends of the second cover plate 3 can be detachably connected to the bottom plate 1. Specifically, the installation and fixing jig for the hook piece further includes two crimping assemblies 4. Both ends of the second cover plate 3 are crimped to the bottom plate 1 through the crimping assemblies 4. Similarly, the pressing part 431 presses the second cover plate 3. The specific structure and usage method of the pressing assembly are all referred to the pressing assembly for pressing the first cover plate 2 and will not be elaborated here. Further, the second cover plate 3 is provided with a second opening 33, and the bottom plate 1 is provided with a limit pin 15. When the second cover plate 3 is covered on the hook piece 102, the second opening 33 is sleeved on the limit pin 15, and then it is crimped through the crimping assembly 4 to prevent the second cover plate 3 from shifting during the crimping process.

[0056] As Figure 1As shown, the installation and fixing fixture for the hook piece further includes an adapter plate 5 and an adapter block 6. The adapter block 6 is connected to the adapter plate 5. The bottom plate 1 is provided with an installation portion 14 for connecting to the adapter plate 5. The installation and fixing fixture for the hook piece is connected to the loading platform of the sewing machine through the adapter plate 5 and the adapter block 6. Optionally, the adapter plate 5 is provided with a first long hole 51, and the adapter block 6 is provided with a second long hole 61. The first long hole 51 extends along the first direction, and the second long hole 61 extends along the third direction. The adapter plate 5 is connected to the loading platform through the first long hole 51, and the adapter block 6 is connected to the loading platform through the second long hole 61. The positions of the adapter plate 5 and the adapter block 6 are adjusted according to the structure of the loading platform, so as to be applicable to the loading platforms of different models of sewing machines. Optionally, the installation portion 14 is a through hole, and the adapter plate 5 is provided with a threaded hole. The fastener passes through the through hole to be threadedly connected with the threaded hole, so as to realize the detachable connection between the adapter plate 5 and the bottom plate 1.

[0057] As Figure 3 shown, a receiving groove 16 is formed on the bottom plate 1, and the flexible braided belt 101 is received in the receiving groove 16, which can play a limiting role.

[0058] As Figure 3 shown, in one embodiment, the first positioning portion 12 includes two first positioning posts. The flexible braided belt 101 is provided with two positioning holes. The two first positioning posts are correspondingly positioned with the two positioning holes, so as to position the flexible braided belt 101 on the bottom plate 1. Further, when the product to be sewn 100 is carried on the bottom plate 1, the two first positioning posts are arranged on one side of the product to be sewn 100 along the first direction. Further, the outer diameter dimensions of the two first positioning posts are different, and the hole diameters of the two positioning holes are adapted to the outer diameters of the two first positioning posts. Similarly, the second positioning portion 13 includes two second positioning posts. The carrier film 200 is provided with a first limiting hole 200A and a second limiting hole 200B. The first limiting hole 200A and the second limiting hole 200B are correspondingly positioned on the two second positioning posts, so as to position the carrier film 200 on the bottom plate 1. Further, when the product to be sewn 100 is carried on the bottom plate 1, the two second positioning posts are arranged on both sides of the product to be sewn 100 along the second direction. Further, the outer diameter dimensions of the two second positioning posts are different, and the hole diameters of the first limiting hole 200A and the second limiting hole 200B are adapted to the outer diameters of the two second positioning posts.

[0059] As Figure 2 and Figure 5 shown, the first cover plate 2 is provided with a first avoidance space 21 for avoiding the first positioning portion 12, and the second cover plate 3 is provided with a second avoidance space 31 for avoiding the second positioning portion 13 to prevent structural interference. When the two first positioning posts are arranged on one side of the product to be sewn 100 along the first direction, only one of the first cover plates 2 is provided with the first avoidance space 21, reducing the processing technology.

[0060] like Figure 4 As shown, optionally, the carrier film 200 is provided with a plurality of limiting grooves 2011, which can simultaneously position a plurality of hook pieces 102.

[0061] like Figure 4 As shown, the carrier film 200 includes a loading sheet 201 and a release film 202. The loading sheet 201 is provided with a limiting groove 2011. When the hook sheet 102 is limited in the limiting groove 2011, the release film 202 is arranged on the side of the hook sheet 102 away from the flexible braided belt 101. Further, before removing the carrier film 200, the first cover plate 2 is covered on the bottom plate 1, and then the carrier film 200 is removed, and then the second cover plate 3 is covered on the hook sheet 102 to prevent the product 100 to be sewn from moving when the carrier film 200 is removed, thereby affecting the positioning accuracy. Optionally, the release film 202 is made of a transparent material.

[0062] This embodiment also provides a method for installing and fixing a hook piece, using the above-mentioned hook piece installation and fixing fixture, such as Figure 6 As shown, the method for installing and fixing the hook piece includes the following steps:

[0063] S100, welding the hook piece 102 to the flexible braided belt 101 to form the product to be sewn 100, so that the hook piece 102 is protruding from the flexible braided belt 101;

[0064] S200, placing the product to be sewn 100 on the bottom plate 1, positioning the flexible braided belt 101 at the first positioning portion 12, and since the product to be sewn 100 is provided with a carrier film 200, the hook piece 102 is limited to the limiting groove 2011, and the carrier film 200 is limited to the second positioning portion 13;

[0065] S300, covering the first cover plate 2 on the flexible braided belt 101, so that the flexible braided belt 101 is sandwiched between the first cover plate 2 and the bottom plate 1;

[0066] S400, removing the carrier film 200, and placing the second cover plate 3 on the hook plate 102, so that the product to be sewn 100 is sandwiched between the second cover plate 3 and the bottom plate 1;

[0067] S500 , placing the jig on the loading platform of the sewing machine, and the sewing machine sews the portion of the product 100 to be sewn exposed in the first avoidance hole 11 and the second avoidance hole 32 .

[0068] The hook piece 102 and the flexible braided belt 101 are welded to achieve preliminary positioning and preliminary bonding. Among them, the strength of the welding becomes smaller, and the welding only needs to ensure a preliminary adhesive force between the flexible braided belt 101 and the hook piece 102. Then, sewing is used for connection to increase the connection strength. By adopting two bonding methods of welding and sewing, the connection reliability is improved, and the problems that the braided materials at the bonding positions of the hook pieces 102 required by the flexible braided belt 101 are diverse, the braided pattern styles are diverse, and a single welding cannot ensure the connection strength are solved. Through pre-welding and positioning and clamping the product 100 to be sewn by the installation and fixing jig of the hook piece, the position deviation of the hook piece 102 caused by the starting and ending needle forces during sewing is avoided. Specifically, a welding auxiliary agent is sprayed on one side of the hook piece 102, and laser welding is used for welding, which is an existing technology and will not be elaborated here.

[0069] Before welding the hook piece 102 to the flexible braided belt 101, it further includes:

[0070] S101. Cut the hook piece 102 so that the hook piece 102 has a preset shape, and path point holes 1021 are formed on the hook piece 102. Specifically, a cold knife can be used to die-cut the hook piece 102 to achieve energy conservation and emission reduction.

[0071] Due to the material limitation of the hook piece 102 itself, by cutting the path point holes 1021 in advance, the starting and ending needle forces can be reduced, thereby reducing the tearing of the hook piece 102 and further preventing the position deviation of the hook piece 102. In addition, when visually inspecting the sewing condition later, it can be judged whether the path point holes 1021 are consistent with the sewing path, which is more convenient.

[0072] In one embodiment, between placing the product 100 to be sewn on the bottom plate 1 and covering the first cover plate 2 on the flexible braided belt 101, it further includes:

[0073] S201. Place the carrier film 200 on the product 100 to be sewn and the bottom plate 1, so that the hook piece 102 is limited in the limiting groove 2011 and the carrier film 200 is limited in the second positioning portion 13. The positioning between the hook piece 102 and the bottom plate 1 is adjusted through the carrier film 200.

[0074] In another embodiment, in step S100, it further includes:

[0075] S102. Attach one side of the hook piece 102 to the loaded carrier film 200, spray a welding auxiliary agent on the other side, and then use laser welding for welding. The carrier film 200 makes the hook piece 102 arranged on the flat surface of the flexible braided belt 101.

[0076] The hook piece 102 is provided at the middle part of the flexible woven belt 101. There are two first cover plates 2, and the two first cover plates 2 are arranged on both sides of the second cover plate 3 along the first direction. In step S300, it further includes:

[0077] S301. The flexible woven belt 101 on the first side of the hook piece 102 is positioned at the first positioning portion 12, and a first cover plate 2 is covered on the first side of the flexible woven belt 101;

[0078] S302. Pull the flexible woven belt 101 on the second side of the hook piece 102 to straighten the flexible woven belt 101 along the first direction;

[0079] S303. Cover the other first cover plate 2 on the second side of the flexible woven belt 101. Further reducing the movement amount of the flexible woven belt 101 prevents the hook piece 102 from shifting from the flexible woven belt 101 during sewing.

[0080] When welding the hook piece 102 to the flexible woven belt 101, the welding area is located in the area where the material of the hook piece 102 is the same as that of the flexible woven belt 101, ensuring the welding effect. Specifically, the sewing path can be adjusted according to the welding area of different hook pieces 102, or the welding points can also be adjusted according to the woven material and pattern of the welding area of the hook piece 102.

[0081] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An installation and fixing fixture for a hook piece, characterized in that The product to be sewn (100) comprises a flexible braided belt (101) and a hook piece (102) protruding from the flexible braided belt (101); the carrier film (200) is provided with a limiting groove (2011) adapted to the shape of the hook piece (102); the carrier film (200) is detachably connected to the product to be sewn (100), so that the limiting groove (2011) is used to limit the position of the hook piece (102); and the installation and fixing fixture of the hook piece comprises: A bottom plate (1) is provided with a first avoidance hole (11), a first positioning portion (12) and a second positioning portion (13); the bottom plate (1) is used to carry the product to be sewn (100); the hook piece (102) is arranged on the side of the flexible braided belt (101) away from the bottom plate (1); the first positioning portion (12) is used to position the flexible braided belt (101); the second positioning portion (13) is used to position the carrier film (200); the flexible braided belt (101) is exposed to the outside through the first avoidance hole (11); The first cover plate (2) and the second cover plate (3) are arranged on the base plate (1); the first cover plate (2) is covered on the flexible braided belt (101) so that the flexible braided belt (101) is sandwiched between the first cover plate (2) and the base plate (1); the second cover plate (3) is covered on the hook sheet (102) with the carrier film (200) removed so that the product to be sewn (100) is sandwiched between the second cover plate (3) and the base plate (1); the second cover plate (3) is provided with a second avoidance hole (32) that can be connected to the first avoidance hole (11); the hook sheet (102) is exposed to the outside through the second avoidance hole (32).

2. The installation and fixing jig for the hook piece according to claim 1, characterized in that, The hook piece (102) is arranged at the middle part of the flexible braided belt (101), two first cover plates (2) are provided, and the two first cover plates (2) are arranged on both sides of the second cover plate (3).

3. The installation and fixing jig for the hook piece according to claim 1, characterized in that, The first cover plate (2) is provided with a first avoidance space (21) for avoiding the first positioning portion (12), and the second cover plate (3) is provided with a second avoidance space (31) for avoiding the second positioning portion (13).

4. The installation and fixing jig for the hook piece according to claim 1, characterized in that It also includes a crimping assembly (4), wherein one end of the first cover plate (2) is hinged to the base plate (1), and the other end is crimped to the base plate (1) through the crimping assembly (4); and / or, it also includes two crimping assemblies (4), wherein both ends of the second cover plate (3) are crimped to the base plate (1) through the crimping assemblies (4).

5. The installation and fixing jig for the hook piece according to claim 4, characterized in that The crimping assembly (4) comprises a fixed block (41), a rotating shaft (42) and a pressing plate (43); the fixed block (41) is fixed to the base plate (1); the pressing plate (43) is rotatably connected to the rotating shaft (42); the pressing plate (43) is clamped between the base plate (1) and the fixed block (41); and the pressing plate (43) is provided with a clamping portion (431) for crimping.

6. A method for installing and fixing a hook piece, characterized in that, Using the hook piece installation and fixing fixture according to any one of claims 1 to 5, the hook piece installation and fixing method includes: Weld the hook piece (102) to the flexible braided belt (101) to form the product to be sewn (100), with the hook piece (102) protruding from the flexible braided belt (101). Place the product to be sewn (100) on the bottom plate (1), position the flexible braided belt (101) at the first positioning portion (12). Since the product to be sewn (100) is provided with a carrier film (200), the hook piece (102) is limited in the limit groove (2011), and the carrier film (200) is limited in the second positioning portion (13). Cover the first cover plate (2) on the flexible braided belt (101), with the flexible braided belt (101) clamped between the first cover plate (2) and the bottom plate (1). Remove the carrier film (200), cover the second cover plate (3) on the hook piece (102), with the product to be sewn (100) clamped between the second cover plate (3) and the bottom plate (1). Place the fixture on the loading table of the sewing machine, and the sewing machine sews the part of the product to be sewn (100) exposed in the first avoidance hole (11) and the second avoidance hole (32).

7. The installation and fixing method of the hook piece according to claim 6, characterized in that, Before welding the hook piece (102) to the flexible braided belt (101), it further includes:[ Cut the hook piece (102) so that the hook piece (102) has a preset shape, and a plurality of path point holes (1021) are formed on the hook piece (102), and the plurality of path point holes (1021) are adapted to the sewing path.[ 8. The installation and fixing method of the hook piece according to claim 6, characterized in that, The hook piece (102) is arranged at the middle part of the flexible braided belt (101), there are two first cover plates (2), and the two first cover plates (2) are arranged on both sides of the second cover plate (3) along the first direction. When covering the first cover plate (2) on the flexible braided belt (101), it further includes:[ The flexible braided belt (101) on the first side of the hook piece (102) is positioned at the first positioning portion (12), and cover one first cover plate (2) on the first side of the flexible braided belt (101).[ Pull the flexible braided belt (101) on the second side of the hook piece (102) to straighten the flexible braided belt (101) along the first direction.[ Cover the other first cover plate (2) on the second side of the flexible braided belt (101).[ 9. The installation and fixation method of the hook piece according to claim 6, characterized in that, Between placing the product to be sewn (100) on the bottom plate (1) and covering the first cover plate (2) on the flexible braided belt (101), it further includes:[ Place the carrier film (200) on the product to be sewn (100) and the bottom plate (1), so that the hook piece (102) is limited in the limit groove (2011), and the carrier film (200) is limited in the second positioning portion (13).[ 10. The installation and fixing method of the hook piece according to claim 6, characterized in that, When welding the hook piece (102) to the flexible braided belt (101), the welding area is located in the area where the material of the hook piece (102) is the same as the material of the flexible braided belt (101).[

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