System integration type multi-specification medical human body repairing material warp knitting production line

Abstract

The application relates to a system integrated multi-specification medical human body repairing material warp knitting production line, and relates to the field of medical textile apparatus production equipment. According to the production process sequence, the warp knitting production line sequentially comprises a yarn feeding unit for placing raw materials and leading out filaments, a weaving unit for weaving different-specification repairing material gray cloth, and a setting unit for obtaining repairing material finished fabric after heat setting treatment of the repairing material gray cloth and winding the repairing material finished fabric. The filament raw material is uniformly and stably tangentially unwound from a yarn drum, the filament breakage probability is reduced, and the process of making a beaming disc head is saved by directly weaving on a machine. Different-specification fabrics are simultaneously woven by multi-gauge needle beds, the sample and production efficiency are effectively accelerated, the heat setting equipment size is maximally reduced, and the floor area is reduced. The production line provided by the application reduces raw material loss by more than 10%, avoids repeated winding and packaging of products, and reduces the possibility of secondary pollution of the products in the transportation process.

Description

Technical Field

[0001] This application relates to the field of medical textile equipment manufacturing technology, and in particular to a system-integrated warp knitting production line for multi-specification medical human body repair materials. Background Technology

[0002] Human body repair materials are a class of new high-tech medical textile materials used to treat, repair, or replace human tissues and organs, or to enhance their function. They mainly include products such as hernia repair mesh, soft tissue repair materials, vascular stent covering mesh, and pericardial mesh. Clinically used products are commonly warp-knitted. The preparation of warp-knitted repair materials typically has the following characteristics: the raw material is mainly polymer filaments, and these raw material yarns are mostly selvedge bobbins; the size of a single finished product is relatively small, so the required width for weaving and heat setting processes is also small, generally only one-third the width of ordinary fabrics; the production volume of each batch is small, and product specifications vary frequently; this type of material needs to be produced in a medical cleanroom.

[0003] Currently, the preparation of medical warp-knitted repair materials in China still follows the warping-knitting-heat-setting process, with machinery and processes no different from textile production. However, the production process has the following problems:

[0004] (1) The finished product has a small width and low output, resulting in very few warping heads and short warping length. However, it is still necessary to warp the heads to make them into coils before they can be woven on the machine, which is time-consuming and laborious.

[0005] (2) The filament raw material has low compatibility with ordinary warping machine frames, and the frames need to be modified, and custom-made additional mechanisms are required. Furthermore, the warping unwinding method is not suitable for filament.

[0006] (3) Textile heat setting equipment is expensive, bulky and energy-intensive, requires relatively high installation space, and the width and specifications of the set fabric are limited and not suitable for small-width materials.

[0007] (4) After the fabric is finished warp knitting, it needs to be rolled and packaged, then unpacked and sent to the heat setting machine, and then rolled and packaged again. This process is futile and wasteful.

[0008] (5) The three processes are usually carried out in different factories, making continuous production impossible. The transfer and transportation process can easily cause multiple contaminations to the fabric.

[0009] (6) The entire process can only produce one specification of fabric. If samples are needed or multiple specifications of products are produced, the entire process needs to be repeated, which is costly and inefficient. Summary of the Invention

[0010] The purpose of this application is to provide a system-integrated warp knitting production line for multi-specification medical human body repair materials to solve the problems existing in the prior art.

[0011] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0012] In a first aspect, this application provides a system-integrated multi-specification medical human body repair material warp knitting production line, which, in the order of the production process, includes:

[0013] A yarn feeding unit for placing raw materials and feeding filaments includes a yarn frame, multiple sets of yarn feeding mechanisms mounted on the yarn frame, and a main yarn splitting plate mounted on the side of the yarn frame.

[0014] The weaving unit is used to simultaneously weave two or more different repair material fabrics. It includes a filament tension roller for introducing filaments from the main filament splitter, a multi-gauge needle bed for weaving, a sinker bed and a guide comb corresponding to the gauge configuration of the multi-gauge needle bed, a traversing mechanism for controlling the traversing of the guide comb, and a first pulling mechanism for weft-pulling the woven repair material fabric.

[0015] The shaping unit includes a feed tension roller for introducing the repair material fabric, a second pulling mechanism for adjusting the pulling width according to the required width of the finished repair material fabric, a heat shaping mechanism for heat shaping the repair material fabric, a cooling mechanism for cooling the finished repair material fabric obtained after heat shaping, and a finished product winding mechanism for winding the finished repair material fabric.

[0016] In one possible implementation, the yarn feeding mechanism includes:

[0017] Multiple sets of mounting brackets are rotatably mounted on the yarn frame;

[0018] Multiple sets of yarn bobbins, fitted onto multiple sets of mounting brackets, are used to unwind filament raw materials tangentially at a uniform speed;

[0019] A speed control module for controlling the rotational speed of the yarn bobbin;

[0020] A yarn tensioner mounted on the yarn frame and used to control the tension of the filament; and

[0021] A sub-filament splitting plate installed on the yarn frame and located at the process end of the yarn supply mechanism;

[0022] Each pair of yarn bobbins corresponds to a set of yarn guide tensioners, and the sub-splitter plate is used to pull the filaments to the main splitter plate.

[0023] In one possible implementation, the mounting bracket includes:

[0024] A rotatable shaft mounted on the yarn frame;

[0025] A circular roller fixedly sleeved on the first end of the shaft; and

[0026] A detachable tapered plug fitted onto the second end of the shaft;

[0027] The yarn bobbin is sleeved on the shaft and located between the circular roller and the conical plug. The circular roller has a groove in its circumference for cooperating with the speed control module.

[0028] In one possible implementation, the speed control module includes:

[0029] A strip of sandpaper wound inside the groove;

[0030] A compression spring connected to the first end of the sandpaper strip;

[0031] The first bolt connected to the second end of the sandpaper strip; and

[0032] A second bolt connected to the end of the compression spring furthest from the sandpaper strip;

[0033] The first bolt and the second bolt are fixedly connected to the yarn frame.

[0034] In one possible implementation, the circular roller has a protrusion on the side near the conical plug, and both sides of the yarn bobbin have hexagonal grooves that match the protrusion, so that the rotational speed of the yarn bobbin is consistent with the rotational speed of the circular roller.

[0035] In one possible implementation, the outer periphery of the filament splitting tension roller is evenly distributed with multiple sets of rubber grooves to evenly separate the filaments exported by the main filament splitting plate and prevent the filaments from tangling and knotting together.

[0036] In one possible implementation, the yarn tensioner includes a six-ring ceramic yarn guide and a tension control plate.

[0037] Secondly, this application provides a method for operating a system-integrated multi-specification medical human body repair material warp knitting production line, the method being applicable to any of the system-integrated multi-specification medical human body repair material warp knitting production lines described above, the method comprising:

[0038] S1. In response to the filament raw material being tangentially unwound from the yarn bobbin of each yarn feeding mechanism, the tension is controlled by the yarn guide tensioner, and the material is collected on the main yarn splitting plate after passing through the sub-filament splitting plate.

[0039] S2. In response to the filament tension roller, the filaments led out by the main filament splitting plate are introduced into the weaving unit, then passed through the guide comb, and are simultaneously woven by a multi-gauge needle bed to complete two or more different specifications of repair material fabric. The first pulling mechanism pre-pulls the fabric to prevent the repair material fabric from shrinking and curling.

[0040] S3. In response to the tension roller winding the repair material fabric to the second tensioning mechanism and adjusting it to the tension required for the finished repair material fabric, the repair material fabric passes through the heat setting mechanism and the cooling mechanism in sequence for heat setting and cooling treatment. Finally, the finished repair material fabric is rolled, cut and packaged by the finished product winding mechanism.

[0041] The beneficial effects of the technical solution provided in this application include at least the following:

[0042] In the technical solution adopted in this application, the filament raw material is unwound tangentially and stably from the yarn bobbin at a uniform speed, which reduces the probability of filament breakage and allows it to be directly used for weaving, eliminating the need for warping and making the warp head. The multi-gauge needle bed can weave fabrics of different specifications at the same time, which effectively speeds up the sampling and production efficiency, minimizes the size of the heat setting equipment, and reduces the floor space. In addition, the production line provided by this application reduces raw material loss by more than 10%, avoids repeated winding and packaging of products, and reduces the possibility of secondary contamination of products during transportation. Attached Figure Description

[0043] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the embodiments of the present application to explain the application and do not constitute a limitation thereof. In the drawings:

[0044] Figure 1 This invention provides a schematic diagram of the structure of a system-integrated multi-specification medical human body repair material warp knitting production line according to an exemplary embodiment of this application.

[0045] Figure 2 This invention provides a schematic diagram of the yarn supply unit of a system-integrated multi-specification medical human body repair material warp knitting production line according to an exemplary embodiment of the present application.

[0046] Figure 3 This invention provides a schematic diagram of the structure of a knitting unit in a system-integrated multi-specification medical human body repair material warp knitting production line according to an exemplary embodiment of this application.

[0047] Figure 4 This invention provides a schematic diagram of the shaping unit of a system-integrated multi-specification medical human body repair material warp knitting production line according to an exemplary embodiment of this application.

[0048] Figure 5This illustration shows an assembly structure diagram of the mounting bracket, yarn bobbin, and speed control module of a system-integrated multi-specification medical human body repair material warp knitting production line provided in an exemplary embodiment of this application;

[0049] Figure 6 This illustration shows an assembly structure diagram of the mounting bracket and speed control module of a system-integrated multi-specification medical human body repair material warp knitting production line provided in an exemplary embodiment of this application;

[0050] Figure 7 This illustration shows a schematic diagram of the yarn bobbin structure of a system-integrated multi-specification medical human body repair material warp knitting production line provided in an exemplary embodiment of this application;

[0051] Figure 8 This invention provides a schematic diagram of the filament tension roller of a system-integrated multi-specification medical human body repair material warp knitting production line according to an exemplary embodiment of this application.

[0052] Figure 9 This invention provides a schematic diagram of the structure of a multi-gauge needle bed in a system-integrated multi-specification medical human body repair material warp knitting production line according to an exemplary embodiment of this application.

[0053] Figure 10 A flowchart illustrating the operation method of a system-integrated multi-specification medical human body repair material warp knitting production line provided in an exemplary embodiment of this application is shown.

[0054] In the picture:

[0055] 1. Yarn supply unit; 2. Weaving unit; 3. Setting unit;

[0056] 11. Yarn rack; 12. Yarn feeding mechanism; 13. Main yarn distribution plate;

[0057] 21. Yarn splitting tension roller; 22. Multi-gauge needle bed; 23. Sinking plate bed; 24. Yarn guide comb; 25. Lateral movement mechanism; 26. First traction mechanism;

[0058] 31. Fabric feeding tension roller; 32. Second traction mechanism; 33. Heat setting mechanism; 34. Cooling mechanism; 35. Finished product winding mechanism;

[0059] 121. Mounting bracket; 122. Yarn bobbin; 123. Speed ​​control module; 124. Yarn tensioner; 125. Sub-yarn splitter plate;

[0060] 1211, Shaft; 1212, Circular Roller; 1213, Groove; 1214, Protrusion; 1215, Conical Plug; 1221, Hexagonal Groove; 1231, Sandpaper Strip; 1232, Compression Spring; 1233, First Bolt; 1234, Second Bolt. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "multiple" means two or more.

[0063] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0064] Figure 1 This illustration shows a schematic diagram of the structure of a system-integrated multi-specification medical human body repair material warp knitting production line provided in an exemplary embodiment of this application. According to the production process sequence, it includes a yarn supply unit 1 for placing raw materials and guiding filaments, a knitting unit 2 for knitting repair material fabrics of different specifications, and a setting unit 3 for heat-setting the repair material fabrics to obtain finished repair material fabrics and for winding up the finished repair material fabrics.

[0065] For details, please refer to Figures 2 to 4The yarn supply unit 1 includes a yarn frame 11, multiple yarn supply mechanisms 12 mounted on the yarn frame 11, and a main yarn splitting plate 13 mounted on the side of the yarn frame 11; the weaving unit 2 includes a yarn splitting tension roller 21 for introducing the filaments led out by the main yarn splitting plate 13, a multi-count needle bed 22 for weaving, a sinker bed 23 and a yarn guide comb 24 corresponding to the machine number configuration of the multi-count needle bed 22, a traversing mechanism 25 for controlling the traversing of the yarn guide comb 24, and a first pulling mechanism 26 for weft pulling the woven repair material fabric; the setting unit 3 includes a feed tension roller 31 for introducing the repair material fabric, a second pulling mechanism 32 for adjusting the pulling width according to the required width of the finished repair material fabric, a heat setting mechanism 33 for heat setting the repair material fabric, a cooling mechanism 34 for cooling the finished repair material fabric obtained after heat setting, and a finished product winding mechanism 35 for winding the finished repair material fabric.

[0066] In this embodiment, the transverse mechanism 25 is an electronic transverse mechanism, which controls the transverse movement of the yarn guide bar 24 by driving a motor.

[0067] In this embodiment, the feed tension roller 31 introduces the repair material fabric into the shaping unit 3 and makes the fabric surface smoother by applying a certain pressure.

[0068] In this embodiment, the heat setting mechanism 33 eliminates the internal stress generated by the filaments during the weaving and bending process through wet heat treatment, making the fabric surface flat and smooth.

[0069] In this embodiment, the cooling mechanism 34 reduces the temperature of the finished repair material fabric after shaping to a safe range for human contact by exhausting air.

[0070] In this embodiment, the finished product winding mechanism 35 winds, cuts, and packages the finished repair material fabric.

[0071] In a preferred embodiment, please refer to Figure 8 The filament splitting tension roller 21 has multiple sets of rubber grooves evenly distributed around its outer periphery, which are used to evenly separate the filaments led out by the main filament splitting plate 13 and prevent the filaments from tangling and knotting together.

[0072] In one example, see Figure 9 The multi-number needle bed 22 is a dual-number needle bed that includes two types of needles, that is, the traditional warp knitting machine needle bed is divided into two equal areas and different numbers of needles are installed.

[0073] Specifically, please refer to Figure 2 and Figure 5The yarn feeding mechanism 12 includes multiple sets of mounting brackets 121 rotatably mounted on the yarn frame 11, multiple sets of yarn bobbins 122 sleeved on the multiple sets of mounting brackets 121, a speed control module 123 for controlling the speed of the yarn bobbins 122, a yarn tensioner 124 mounted on the yarn frame 11 for controlling the tension of the filaments, and a sub-filament splitting plate 125 mounted on the yarn frame 11 and located at the process end of the yarn feeding mechanism 12.

[0074] In this embodiment, each pair of yarn bobbins 122 corresponds to a set of yarn tensioners 124, and the sub-splitter plate 125 at the end of each yarn supply mechanism 12 is used to draw and gather the filaments to the main splitter plate 13. That is, the filament raw material is unwound tangentially from the yarn bobbin 122 at a uniform speed and stably, passes through the yarn tensioner 124 and the sub-splitter plate 125 in sequence, and then gathers to the main splitter plate 13. The main splitter plate 13 is used to evenly separate the drawn filaments and draw them to the weaving unit 2.

[0075] In one example, there are seven sets of yarn feeding mechanisms 12. The seven sets of yarn feeding mechanisms 12 are evenly spaced along the vertical direction. Each set of yarn feeding mechanisms 12 has six sets of yarn bobbins 122, three sets of yarn guide tensioners 124 and one set of sub-spindle plates 125. The six sets of yarn bobbins 122 are evenly spaced along the horizontal direction.

[0076] In one example, the yarn tensioner 124 includes a six-ring ceramic yarn guide and a tension control plate.

[0077] More specifically, please refer to Figures 5 to 7 The mounting bracket 121 includes a rotatable shaft 1211 mounted on the yarn frame 11, a circular roller 1212 fixedly sleeved on the first end of the shaft 1211, and a detachable conical plug 1215 sleeved on the second end of the shaft 1211.

[0078] In this embodiment, the yarn bobbin 122 is sleeved on the shaft 1211 and located between the circular roller 1212 and the conical plug 1215. The circular roller 1212 has a groove 1213 in the circumference for cooperating with the speed control module 123. The yarn bobbin 122 is a cylindrical bobbin with edges.

[0079] In this embodiment, the circular roller 1212 has a protrusion 1214 on the side near the conical plug 1215, and both sides of the yarn tube 122 have hexagonal grooves 1221 that are adapted to the protrusion 1214, so that the rotation speed of the yarn tube 122 is consistent with the rotation speed of the circular roller 1212, wherein the conical plug 1215 is used to prevent the yarn tube 122 from falling off.

[0080] Further, please refer to Figures 5 to 7The speed control module 123 includes a sandpaper strip 1231 wound in the groove 1213, a compression spring 1232 connected to the first end of the sandpaper strip 1231, a first bolt 1233 connected to the second end of the sandpaper strip 1231, and a second bolt 1234 connected to the end of the compression spring 1232 away from the sandpaper strip 1231; wherein the first bolt 1233 and the second bolt 1234 are fixedly connected to the yarn frame 11.

[0081] In this embodiment, the sandpaper strip 1231 is used to increase friction. Since the unwinding of the yarn bobbin 122 is passive, the unwinding speed depends on the speed of the braiding machine. When the machine speed is high, the yarn bobbin 122 will rotate rapidly and have inertia, which can easily lead to excessive unwinding of the raw material and twisting of the filaments. The yarn bobbin 122 needs to be picked up and is not fixed on the mounting bracket 121. It maintains a consistent speed only by the engagement of the protrusion 1214 on the surface of the circular roller 1212 with the hexagonal groove 1221 of the yarn bobbin 122. The friction between the sandpaper strip 1231 and the circular roller 1212 generates a certain resistance. The compression spring 1232 provides elastic space for the magnitude of the resistance and controls the rotation speed of the circular roller 1212, thereby indirectly making the rotation speed of the yarn bobbin 122 uniform and achieving stable unwinding.

[0082] Figure 10 A flowchart illustrating an exemplary embodiment of this application shows a method for operating a system-integrated multi-specification medical body repair material warp knitting production line. This method is applicable to the system-integrated multi-specification medical body repair material warp knitting production line as described above, and includes the following steps:

[0083] Step S1: In response to the filament raw material being tangentially unwound from the yarn bobbin of each yarn feeding mechanism, the tension is controlled by the yarn guide tensioner, and the material is collected on the main yarn splitting plate after passing through the sub-filament splitting plate.

[0084] Step S2: In response to the filament splitting tension roller, the filaments led out by the main filament splitting plate are introduced into the weaving unit and then passed through the guide comb. The repair material fabric, which is woven by the multi-gauge needle bed, is pre-stretched by the first stretching mechanism to prevent the repair material fabric from shrinking and curling.

[0085] Step S3: In response to the feeding tension roller, the repair material fabric is wound onto the second tensioning mechanism and adjusted to the tension required for the finished repair material fabric. The repair material fabric then passes through the heat setting mechanism and the cooling mechanism for heat setting and cooling treatment. Finally, the finished repair material fabric is wound, cut and packaged by the finished product winding mechanism.

[0086] In summary, in the technical solution adopted in this application, the filament raw material is unwound tangentially and stably from the yarn bobbin at a uniform speed, reducing the probability of filament breakage and allowing direct weaving without the need for warping and head making. Multiple needle beds simultaneously weave fabrics of different specifications, effectively accelerating sample preparation and production efficiency, minimizing the size of heat-setting equipment, and reducing floor space. Furthermore, the production line provided in this application reduces raw material loss by more than 10%, avoids repeated winding and packaging of products, and reduces the possibility of secondary contamination during transportation.

[0087] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A system-integrated multi-specification warp knitting production line for medical human body repair materials, characterized in that, In order of production process, the following are included: The yarn feeding unit (1) is used to place raw materials and deliver filaments. It includes a yarn frame (11), multiple yarn feeding mechanisms (12) installed on the yarn frame (11), and a main yarn splitting plate (13) installed on the side of the yarn frame (11). The weaving unit (2) is used to weave two or more different specifications of repair material fabric at the same time. It includes a splitting tension roller (21) for introducing the filaments led out by the main splitting plate (13), a multi-gauge needle bed (22) for weaving, a sinker bed (23) corresponding to the gauge configuration of the multi-gauge needle bed (22), a guide comb (24), a traversing mechanism (25) for controlling the traversing of the guide comb (24), and a first pulling mechanism (26) for weft pulling the woven repair material fabric. The shaping unit (3) includes a feed tension roller (31) for introducing the repair material fabric, a second pulling mechanism (32) for adjusting the pulling width according to the required width of the finished repair material fabric, a heat shaping mechanism (33) for heat shaping the repair material fabric, a cooling mechanism (34) for cooling the finished repair material fabric obtained after heat shaping, and a finished product winding mechanism (35) for winding the finished repair material fabric.

2. The system-integrated multi-specification medical human body repair material warp knitting production line according to claim 1, characterized in that, The yarn supply mechanism (12) includes: Multiple sets of mounting brackets (121) are rotatably mounted on the yarn frame (11). Multiple sets of yarn bobbins (122) fitted on multiple sets of mounting brackets (121) are used to unwind the filament raw material at a uniform speed and in a tangential direction; A speed control module (123) for controlling the rotational speed of the yarn bobbin (122). A yarn tensioner (124) mounted on the yarn frame (11) and used to control the tension of the filament; and Sub-splitter plate (125) installed on the yarn rack (11) and located at the process end of the yarn supply mechanism (12). Each pair of yarn bobbins (122) corresponds to a set of yarn guide tensioners (124), and the sub-splitter plate (125) is used to pull the filaments to the main splitter plate (13).

3. The system-integrated multi-specification medical human body repair material warp knitting production line according to claim 2, characterized in that, The mounting bracket (121) includes: A shaft (1211) is rotatably mounted on the yarn frame (11). A circular roller (1212) fixedly sleeved on the first end of the shaft (1211); and A detachable tapered plug (1215) fitted onto the second end of the shaft (1211). The yarn bobbin (122) is sleeved on the shaft (1211) and located between the circular roller (1212) and the conical plug (1215). The circular roller (1212) has a groove (1213) in the circumferential direction for cooperating with the speed control module (123).

4. The system-integrated multi-specification medical human body repair material warp knitting production line according to claim 3, characterized in that, The speed control module (123) includes: Sandpaper strip (1231) is wound inside the groove (1213). A compression spring (1232) is connected to the first end of the sandpaper strip (1231). The first bolt (1233) is connected to the second end of the sandpaper strip (1231); and A second bolt (1234) is connected to the end of the compression spring (1232) away from the sandpaper strip (1231). The first bolt (1233) and the second bolt (1234) are fixedly connected to the yarn frame (11).

5. The system-integrated multi-specification medical human body repair material warp knitting production line according to claim 3, characterized in that, The circular roller (1212) has a protrusion (1214) on the side near the conical plug (1215), and both sides of the yarn bobbin (122) have hexagonal grooves (1221) that are adapted to the protrusion (1214) to make the rotation speed of the yarn bobbin (122) consistent with the rotation speed of the circular roller (1212).

6. The system-integrated multi-specification medical human body repair material warp knitting production line according to claim 1, characterized in that, The filament splitting tension roller (21) has multiple sets of rubber grooves evenly distributed on its outer periphery, which are used to evenly separate the filaments led out by the main filament splitting plate (13) to prevent the filaments from tangling and knotting together.

7. The system-integrated multi-specification medical human body repair material warp knitting production line according to claim 2, characterized in that, The yarn tensioner (124) includes a six-ring ceramic yarn guide and a tension control iron plate.

8. A working method for a system-integrated multi-specification medical human body repair material warp knitting production line, characterized in that, The method is applicable to the system-integrated multi-specification medical human body repair material warp knitting production line according to any one of claims 1 to 7, and the method includes: S1. In response to the filament raw material being tangentially unwound from the yarn bobbin (122) of each yarn feeding mechanism (12), the tension is controlled by the yarn tensioner (124), and the material is collected on the main yarn splitting plate (13) after passing through the sub-splitting plate (125). S2. In response to the filament tension roller (21), the filaments led out by the main filament plate (13) are introduced into the knitting unit (2) and then passed through the guide comb (24). After being knitted by the multi-gauge needle bed (22), two or more different specifications of repair material fabrics are pre-stretched by the first traction mechanism (26) to prevent the repair material fabrics from shrinking and curling. S3. In response to the fabric feeding tension roller (31), the repair material fabrics are wound to the second traction mechanism (32) and adjusted to the required tension of the finished repair material fabric. The repair material fabrics are then heat-set and cooled by the heat-setting mechanism (33) and the cooling mechanism (34) in sequence. Finally, the finished repair material fabrics are rolled, cut and packaged by the finished product winding mechanism (35).

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