A method for sewing thick fabrics

Abstract

This invention discloses a method for sewing thick fabrics. The method includes the following steps: a needle cylinder drives a pre-needle assembly to pre-puncture the thick fabric; a first detector detects the pre-puncture holes on the thick fabric, and simultaneously the needle cylinder drives the pre-needle assembly to return to its original position; a sewing component passes through the pre-puncture holes and cooperates with a rotary hook to sew the thick fabric; after sewing is completed, the sewing component returns to its original position, and the pre-needle assembly pre-punctures the thick fabric again, repeating the cycle. The beneficial effects of this invention are: the puncture component facilitates punching holes in thick fabrics, and when used in conjunction with the sewing component, it allows for direct sewing after punching holes in the thick fabric, eliminating the need for pre-punching and then processing on an assembly line, thereby improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of textile sewing technology, and more particularly to a method for sewing thick fabrics. Background Technology

[0002] Traditional hand-sewing of fabrics of varying densities requires a high level of operator skill and involves strenuous work. For thick fabrics, pre-punching is necessary before sewing, as it is not feasible to pierce the fabric directly, the yarn is prone to breakage, and there is a risk of puncturing the hand and causing accidental injury. Prolonged sewing leads to fatigue, and the inconsistency in sewn fabrics due to individual differences results in more defective products, ultimately failing to meet customer quality requirements. As a result, mass-production, high-repetition fabric sewing machines are gradually replacing human sewing.

[0003] Existing sewing equipment still has design shortcomings. When sewing thick fabrics, the main sewing needle often bends or breaks because it cannot pierce the thick fabric, and the yarn breaks inside the thick fabric, causing the production line to stop. In order to avoid damage to the main sewing needle and yarn breakage, additional holes need to be punched when sewing thick fabrics. Although this avoids the above problems, it also reduces work efficiency and affects the company's profits.

[0004] To solve the above-mentioned technical problems, a special method for sewing thick fabrics has emerged. This method allows for direct sewing after punching holes in the thick fabric, eliminating the need for pre-punching and assembly line work, thereby improving work efficiency. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments; simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention, and such simplifications or omissions shall not be used to limit the scope of the invention.

[0006] In view of the problems that exist in the above and / or existing sewing equipment, such as the main sewing needle not penetrating the thick fabric and bending or breaking, and the yarn breaking inside the thick fabric, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a method for sewing thick fabrics, which can directly sew the fabric after punching holes, eliminating the need for pre-punching and assembly line work, thereby improving work efficiency.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: The method for sewing thick fabrics includes the following steps:

[0009] The needle cylinder drives the pre-needle assembly to pre-needle the thick fabric.

[0010] The first detector detects the pre-puncture hole on the thick fabric, while the needle cylinder drives the pre-puncture assembly to return to its original position.

[0011] The sewing component passes through the pre-punctured hole and engages with the rotary hook to sew the thick fabric;

[0012] Once the suturing is complete, the sutured parts are restored to their original positions, and the pre-punctured needle assembly pre-punctures the thick fabric again, repeating the process.

[0013] As a preferred embodiment of the method for sewing thick fabrics according to the present invention, the sewing component passes through a pre-punctured hole and engages with a rotary hook to sew the thick fabric, comprising the steps of:

[0014] The needle cylinder drives the needle assembly to move toward the pre-piercing hole via the slider assembly;

[0015] The main sewing needle of the needle assembly passes through the pre-puncture hole and engages with the rotary hook to sew thick fabric;

[0016] The needle assembly is restored after threading.

[0017] The beneficial effects of the present invention are as follows: The present invention is provided with a puncture component, which makes it convenient to punch holes in thick fabrics. When used in conjunction with the sewing component, the thick fabric can be sewn directly after punching holes, eliminating the process of punching holes in advance and then putting it on the assembly line, thereby improving work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of the thick fabric sewing method of the present invention.

[0020] Figure 2 This is a schematic diagram of the stitching and puncture components of the thick fabric stitching method of the present invention.

[0021] Figure 3 This is a schematic diagram of the main sewing needle and piercing needle assembly structure of the thick fabric sewing method of the present invention.

[0022] Figure 4 This is a schematic diagram of the main sewing needle and piercing needle assembly structure of the thick fabric sewing method of the present invention.

[0023] Figure 5 The sliding block, support guide rail, and support knot described in this invention are for the thick fabric sewing method.

[0024] Schematic diagram.

[0025] Figure 6 This is a schematic diagram of the process flow for the thick fabric sewing method of the present invention.

[0026] Figure 7 This is a schematic diagram of the lockstitch stitch of the fabric described in the sewing method for thick fabrics according to the present invention.

[0027] Figure 8 This is a schematic diagram of the fabric sewing structure described in the thick fabric sewing method of the present invention.

[0028] Figure 9(a) is a front view of the structure of the main sewing needle extending into the rotary hook in the thick fabric sewing method of the present invention.

[0029] Figure 9(b) is a side view of the structure of the main sewing needle extending into the rotary shuttle in the thick fabric sewing method of the present invention.

[0030] Figure 10(a) is a front view schematic diagram of the main seam needle loop structure of the thick fabric sewing method of the present invention.

[0031] Figure 10(b) is a schematic diagram of the main seam needle loop structure of the thick fabric sewing method of the present invention.

[0032] Figure 11(a) is a front view schematic diagram of the structure of the rotary hook hooking the main sewing needle in the thick fabric sewing method of the present invention.

[0033] Figure 11(b) is a side view of the structure of the rotary hook hooking the main sewing needle in the thick fabric sewing method of the present invention.

[0034] Figure 12(a) is a front view of the main needle moving upward and the rotary hook in the thick fabric sewing method of the present invention.

[0035] Figure 12(b) is a side view of the main needle moving upward and the rotary hook in the thick fabric sewing method of the present invention.

[0036] Figure 13 This is a schematic diagram of the fabric sewing process using the main sewing needle in the thick fabric sewing method of the present invention.

[0037] Figure 14 This is a schematic diagram illustrating the completion of sewing by the main sewing needle in the thick fabric sewing method of the present invention.

[0038] Figure 15 This is a schematic diagram of the main sewing needle sewing the next perforation in the thick fabric sewing method of the present invention.

[0039] Figure 16 This is a schematic diagram of the longitudinal and transverse drive mechanism for the thick fabric sewing method of the present invention. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example

[0043] Reference Figure 1 A schematic diagram of the overall structure of a thick fabric sewing device is provided, such as... Figure 1 The present invention comprises a suture component 100, wherein one end of the main suture needle assembly 101 is fixedly mounted on a sliding assembly 102, and the sliding assembly 102 slides back and forth along a guide rail to drive the main suture needle assembly 101 to move together; and a puncture component 200, which is disposed on one side of the suture component 100. The puncture component 200 includes a needle assembly 201, a needle cylinder 202, a cylinder support 203, and a sliding block 204. The needle assembly 201 and the needle cylinder 202 are connected by a push rod. The needle cylinder 202 can drive the needle assembly 201 to move. One end of the needle cylinder 202 is fixedly connected to the cylinder support 203. The sliding block 204 is symmetrically disposed on both sides of the cylinder support 203 and one end is fixedly connected to the cylinder support 203.

[0044] Specifically, the present invention includes a main suture needle assembly 101 of a suture component 100, one end of which is fixedly mounted on a sliding assembly 102. The sliding assembly 102 slides back and forth along a guide rail, which can drive the main suture needle assembly 101 to move together. The main suture needle assembly 101 is made of M42 high-speed steel, which has high hardness, good hot hardness, high high-temperature hardness, and is easy to grind. The needle assembly 201 is connected to the needle cylinder 202 through a push rod, which is made of wear-resistant steel. The needle cylinder 202 can drive the needle assembly 201 to move. One end of the needle cylinder 202 is fixedly connected to the cylinder bracket 203 by bolts. The sliding block 204 is symmetrically arranged on both sides of the cylinder bracket 203 and one end is fixedly connected to the cylinder bracket 203 by bolts. When maintaining and repairing the equipment, only the bolts need to be tightened or loosened.

[0045] Usage: After the cylinder device of the suture component 100 is powered on, the push rod can move back and forth at a constant speed along the axis, and the push rod drives the main suture needle assembly 101 to move; the needle cylinder 202 of the puncture component 200 works on the same principle as the cylinder of the suture component 100, and drives the needle assembly 201 to move after being powered on; the needle cylinder 202 of the puncture component 200 is fixedly connected to the cylinder bracket 203 by bolts, and the sliding block 204 can drive the cylinder bracket 203 to move inward or outward of the suture component 100. Example

[0046] Reference Figure 2 This embodiment differs from the first embodiment in that: the needle assembly 201 includes a needle 201a, a needle mounting block 201b, and a mounting block push rod 201c. The needle 201a is disposed within the mounting block 201b and is detachable for easy replacement. One end of the mounting block push rod 201c is connected to the mounting block 201b, and the other end is connected to the needle cylinder 202. The needle cylinder 202 can push the mounting block push rod 201c, thereby causing the mounting block 201b to move together. The main needle 101a of the main needle assembly 101 is disposed within the main needle adjusting component 101b. The main needle adjusting component 101b can adjust the inner radius of the main needle mounting location, facilitating the fixing of main needles with different radii. The main needle adjusting component 101b is firmly fixed by adjusting the fixing block 101c, and the fixing block 101c is firmly fixed to the sliding plate 102a of the sliding assembly 102 by bolts.

[0047] Specifically, the needle 201a is made of M42 high-speed steel, which has high hardness, good hot hardness, high high-temperature hardness, and is easy to grind; the needle 201a is set inside the mounting block 201b and is detachable for easy maintenance and repair; one end of the mounting block push rod 201c is connected to the mounting block 201b and the other end is connected to the needle cylinder 202, and the push rod 201c is made of wear-resistant steel; the needle cylinder 202 can push the mounting block push rod 201c, thereby driving the mounting block 201b to move together; the main suture needle assembly 10 The main sewing needle 101a is set inside the main sewing needle adjusting component 101b. The main sewing needle adjusting component 101b can adjust the inner radius of the main sewing needle installation location, making it convenient to fix main sewing needles of different radii. The main sewing needle assembly 101 is made of M42 high-speed steel, which has high hardness, good hot hardness, high high-temperature hardness, and is easy to grind. The main sewing needle adjusting component 101b is firmly fixed by the adjusting fixing block 101c, and the fixing block 101c is firmly fixed to the sliding plate 102a of the sliding component 102 by bolts.

[0048] The remaining structure is the same as that in Example 1.

[0049] Usage: After the cylinder device of the suture component 100 is powered on, the push rod can move back and forth at a constant speed along the axis, and the push rod drives the main suture needle assembly 101 to move; after the needle cylinder 202 of the puncture component 200 is powered on, it drives the mounting block push rod 201c of the needle assembly 201 to move, and the mounting block push rod 201c can move back and forth at a constant speed along the axis, driving the mounting block 201b and the needle 201a set in the mounting block 201b to move; the needle cylinder 202 of the puncture component 200 is fixedly connected to the cylinder bracket 203 by bolts, and the sliding block 204 can drive the cylinder bracket 203 to move inward or outward of the suture component 100. Example

[0050] Reference Figure 2 , Figure 3 and Figure 4 This embodiment differs from the previous embodiments in that: the slider 102b is disposed on the slider guide rail 102c and can move axially along the guide rail; the suture component 100 also includes a pusher block 103, a pusher block connecting rod 104, and a main suture needle cylinder.

[0051] 105. One end of the push block connecting rod 104 is connected to the push block 103, and the other end is connected to the main sewing needle cylinder 105. After the main sewing needle cylinder 105 is energized, it can drive the connecting rod 104 and the push block 103 to move back and forth at a constant speed. The main sewing needle 101a of the main sewing needle assembly 101 is set at the center of the sliding plate 102a of the sliding assembly 102. The needle assembly 201 is set parallel to the main sewing needle assembly 101, and the needle 201a of the needle assembly 201 is located at the center of the sliding plate 102a. When working, the needle assembly 201 moves first and punches holes in the thick fabric through the needle 201a of the needle assembly 201. After punching, the main sewing needle assembly 101 moves again. Since the main sewing needle 101a of the main sewing needle assembly 101 and the needle 201a of the needle assembly 201 are on the same line, the thick fabric is punched before sewing.

[0052] Specifically, slider 102b is mounted on slider guide rail 102c and can move axially along the guide rail. Slider guide rail 102c is made of wear-resistant stainless steel, and slider 102b is made of galvanized metal. The sewing component 100 also includes push block 103, push block connecting rod 104, and main sewing needle cylinder 105. One end of push block connecting rod 104 is connected to push block 103, and the other end is connected to main sewing needle cylinder 105. When the main sewing needle cylinder 105 is energized, it can drive connecting rod 104 and push block 103 to move back and forth at a constant speed. Push block 103 is made of galvanized metal, and push block connecting rod 104 is made of wear-resistant steel. The main sewing needle 101a of the main sewing needle assembly 101 is mounted on the sliding component 10. At the center of the sliding plate 102a, the needle assembly 201 is arranged parallel to the main sewing needle assembly 101, and the needle 201a of the needle assembly 201 is located at the center of the sliding plate 102a. During operation, the needle assembly 201 moves first, punching holes in the thick fabric through the needle 201a. After punching, the main sewing needle assembly 101 moves. Since the main sewing needle 101a of the main sewing needle assembly 101 and the needle 201a of the needle assembly 201 are on the same line, the thick fabric is punched before sewing. This design eliminates the process of punching holes in advance and then putting it on the assembly line, further refining the punching and sewing process and improving work efficiency.

[0053] The remaining structure is the same as that in Example 2.

[0054] Usage: After the equipment is powered on, the needle cylinder 202 of the puncture component 200 is powered on, which drives the mounting block push rod 201c of the needle assembly 201 to move. The mounting block push rod 201c can move back and forth at a constant speed along the axis, driving the mounting block 201b and the needle 201a set in the mounting block 201b to move. The needle cylinder 202 of the puncture component 200 is fixedly connected to the cylinder bracket 203 by bolts. The sliding block 204 can drive the cylinder bracket 203 to move inward or outward of the suturing component 100. The needle assembly 201 moves first, and after the needle 201a punches a hole, the suturing component 100 moves. The push rod can move back and forth at a constant speed along the axis, and the push rod drives the main suturing needle assembly 101 to move. The main suturing needle 101a of the main suturing needle assembly 101 sews at the pre-drilled hole. This design eliminates the process of pre-drilling holes and then putting the equipment on the assembly line, further refining the drilling and sewing process and improving work efficiency. Example

[0055] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5This embodiment differs from the above embodiments in that it further includes a support component 300, which includes a support plate 301, a bracket guide rail 302, and a bracket 303. The bracket guide rail 302 is disposed on the bracket 303. A first bracket 303a is disposed on one side of the support plate 301, and a second bracket 303b is disposed on the other side. One end of the first bracket 303a and the second bracket 303b are fixedly disposed on the machine tool, and the other end is used to fix the first guide rail 302a and the second guide rail 302b. The support plate 301 is connected by screws... The slide rail 102c and the main sewing needle cylinder 105 of the sliding assembly 102 are fixedly mounted on the machine tool. The slide rail 102c and the main sewing needle cylinder 105 are also mounted on the support plate 301 with bolts for easy maintenance and repair. The cylinder bracket 203 is fixedly connected to the first block 204a and the second block 204b at both ends, and the other end of the first block 204a and the second block 204b can move axially on the first guide rail 302a and the second guide rail 302b.

[0056] Specifically, both the first bracket 303a and the second bracket 303b are steel structures, with one end fixedly mounted on the machine tool and the other end used to fix the first guide rail 302a and the second guide rail 302b. The support plate 301 is also equipped with a slider guide rail 102c of the sliding component 102 and a main sewing needle cylinder 105. The slider guide rail 102c and the main sewing needle cylinder 105 are both fixedly mounted on the support plate 301 with bolts for easy maintenance and repair. The two ends of the cylinder bracket 203 are fixedly connected to the first block 204a and the second block 204b respectively. The other ends of the first block 204a and the second block 204b can move axially on the first guide rail 302a and the second guide rail 302b. The first block 204a and the second block 204b are made of wear-resistant steel.

[0057] Usage: The slider guide rail 102c of the sliding component 102 and the main suture needle cylinder 105 are both bolted to the support plate 301 for easy maintenance. The cylinder bracket 203 of the puncture component 200 can be adjusted inward or outward via the sliding block 204, changing the distance between the puncture component 200 and the suture component 100. This facilitates the puncture component 200 moving first and the suture component 100 moving later during assembly line operations. After the equipment is powered on, the needle cylinder 202 of the puncture component 200 drives the mounting block push rod 201c of the needle assembly 201 to move, thus installing... The push rod 201c can move back and forth at a constant speed along the axis, driving the mounting block 201b and the needle 201a set in the mounting block 201b to move; the needle cylinder 202 of the puncture component 200 is fixedly connected to the cylinder bracket 203 by bolts, and the sliding block 204 can drive the cylinder bracket 203 to move inward or outward towards the suture component 100; the needle assembly 201 moves first, and after the needle 201a punches a hole, the suture component 100 moves again, the push rod can move back and forth at a constant speed along the axis, the push rod drives the main suture needle assembly 101 to move, and the main suture needle 101a of the main suture needle assembly 101 sews at the pre-drilled hole. Example

[0058] Reference Figure 6 This embodiment differs from the previous embodiments in that it uses a thick fabric sewing device to sew thick fabrics. Specifically, the thick fabric sewing method includes the following steps: S1: The needle cylinder 202 drives the pre-needle assembly 201 to pre-needle the thick fabric; S2: The first detector detects the pre-puncture hole on the thick fabric, and at the same time, the needle cylinder 202 drives the pre-needle assembly 201 to return to its original position; S3: The sewing component 100 passes through the pre-puncture hole and cooperates with the rotary hook to sew the thick fabric; S4: The sewing is completed, the sewing component 100 returns to its original position, and the pre-needle assembly 201 pre-needles the thick fabric again, and the cycle repeats.

[0059] It should be noted that the sewing equipment is positioned above the thick fabric to be sewn, and the thick fabric is laid flat on the longitudinal and transverse drive mechanism (such as...). Figure 16 As shown, the four ends or four corners of the fabric are clamped and fixed by clamps. The longitudinal and transverse drive mechanism can drive the thick fabric to move in the XY direction on the horizontal plane. There are detectors below it. The detectors are non-contact inductive sensors. There are two longitudinal detectors, which are placed 5mm inward from both ends of the longitudinal mechanism. There are also two transverse detectors, which are placed 5mm inward from both ends of the transverse mechanism.

[0060] Furthermore, the step of the needle cylinder 202 driving the pre-needle assembly 201 to pre-needle the thick fabric includes:

[0061] S11: Set suture parameters and determine the suture path, such as Figure 7 As shown, h in the weave pattern represents the fabric thickness; the specific values ​​for the stitch length (m) and row spacing (n) are set; for example... Figure 8 As shown, the left-right movement direction of the fabric is defined as +X direction, and the front-back movement direction is defined as +Y direction, which correspond to the movement directions of the X and Y axes of the longitudinal and transverse drive mechanism, respectively. The sewing sequence is as follows: first, sew a complete row along the +X direction according to the stitch length (m), then move one row distance (n) along the +Y direction, and continue sewing a complete row along the -X direction according to the stitch length (m), then move one row distance (n) along the +Y direction, and so on, until the fabric is sewn.

[0062] S12: Start the sewing switch. The needle cylinder 202 drives the pre-needle assembly 201 to pre-needle the thick fabric. Specifically, the Y-axis of the longitudinal and transverse drive mechanism remains stationary. After the fabric moves towards +X via the X-axis driven by the motor, the first guide rail 302a and the second guide rail 302b drive the pre-needle cylinder 202 and the pre-needle assembly 201 towards -Y via the first cylinder N1 and the second cylinder N2, respectively. Then, the pre-needle cylinder 202 drives the pre-needle...

[0063] Component 201 performs a reciprocating pre-punching motion to pre-punch through holes in the fabric.

[0064] Furthermore, the first detector detects the pre-puncture hole on the thick fabric, and at the same time, the needle cylinder 202 drives the pre-puncture assembly 201 to return to its original position. Specifically, when the fabric under the pre-puncture cylinder 202 is penetrated, the first detector passes through the hole. The first detector determines whether the puncture is completed based on the different infrared distances. When the infrared light of the first detector passes through the hole, the first detector light on the control panel lights up, indicating that the pre-puncture is completed. The first guide rail 302a and the second guide rail 302b drive the pre-puncture cylinder 202, the cylinder bracket 203, and the pre-puncture assembly 201 to move towards +Y through the first cylinder N1 and the second cylinder N2, respectively, and return to their original positions.

[0065] Furthermore, the sewing component 100 passes through the pre-punctured hole and engages with the rotary hook to sew the thick fabric, including the following steps:

[0066] S31: The main sewing needle cylinder 105 drives the main sewing needle assembly 101 to move toward the pre-piercing hole through the slider assembly 102. Specifically, the position of the main sewing needle cylinder 105 remains fixed, and the slider assembly 102 drives the main sewing needle assembly 101 to move downward, which in turn drives the suture thread on the main sewing needle 101a to move downward. The main sewing needle 101a and the suture thread pass through the hole in the thick fabric together. The needle tip of the main sewing needle 101a and the suture thread are at the center of the rotary shuttle groove, as shown in Figures 9(a) and (b) (the thick fabric is not shown in the figure).

[0067] S32: The main sewing needle 101a of the main sewing needle assembly 101 passes through the pre-pierced hole and engages with the rotary hook to sew thick fabrics. Specifically, S321: as... Figure 5 As shown, the first cylinder N1 fixed on the left side of the support plate (301) lifts the slider assembly 102. The slider assembly 102 drives the main sewing needle assembly 101 and the main sewing needle 101a to move upward, so that the sewing thread forms a loop on the main sewing needle 101a, as shown in Figures 10(a) and (b) (thick fabric is not shown in the figure); wherein, the main sewing needle rises to ensure that after the rotary hook rotates, the hook tip hooks the sewing thread in the hook groove of the main sewing needle;

[0068] S322: As shown in Figures 11(a) and (b) (thick fabric is not shown in the figure), after the rotary shuttle motor drives the rotary shuttle to rotate at a fixed angle, the tip of the rotary shuttle hooks the sewing thread on the main sewing needle 101a through the formed loop;

[0069] S323: As shown in Figures 12(a) and (b) (thick fabric is not shown in the figure), the second cylinder N2 fixed on the right side of the support plate 301 lifts the slider assembly 102. The slider assembly 102 drives the main sewing needle assembly 101 and the main sewing needle 101a to move upward a fixed distance and then maintains the position.

[0070] S324: As Figure 13 As shown, the rotary hook rotates again, causing the bobbin inside the rotary hook to wrap around the suture thread. The way the bobbin wraps around the suture thread is the same as the way the sewing machine sews. The rotary hook rotates until the second detector light, which detects the zero point position of the rotary hook, illuminates and then stops. At this point, the looping motion is completed, forming a unit of lockstitch structure. It should be noted that the second detector is located on the side of the rotary hook and is fixed to the baffle on the side of the rotary hook. When the positioning plate on the rotary hook is parallel to the second detector (the distance between the rotary hook positioning plate and the second detector is 0.1mm), the second detector detects the rotary hook positioning plate using its electromagnetic induction principle, causing the rotary hook to stop rotating, which is the zero point position of the rotary hook.

[0071] S33: As Figure 14 As shown, the main sewing needle assembly 101 returns to its original position after threading. Specifically, the position of the main sewing needle cylinder 105 remains fixed. The slider assembly 102 drives the main sewing needle assembly 101, the main sewing needle 101a, and the sewing thread to move upward until the light of the upper limit position detector (retraction piston position detector) of the main sewing needle cylinder 105 is lit and stops. The main sewing needle cylinder 105 is a cylinder with a magnetic spring. At the positions of the extended and retracted pistons, two electromagnetic proximity switches are placed respectively. The main sewing device returns to its original position and tightens the sewing thread on the main sewing needle 101a, so that the tension of the sewing thread in the fabric is appropriate.

[0072] Furthermore, such as Figure 15As shown, after the sewing is completed, the sewing component 100 returns to its original position. After the fabric moves a distance of one stitch length, the pre-needle assembly 201 pre-needles the thick fabric again, and the cycle repeats. Specifically, the thick fabric is driven by the X-axis to move the fabric to +X by one stitch length (m) through the motor, while the Y-axis does not move. Steps S1 to S4 are repeated, and this cycle continues until the sewing of a complete row from +X is completed. When sewing across rows: the X-axis does not move, and the Y-axis is driven by the motor to move the fabric to +Y by one row distance (n). The cycle operation of steps S1 to S4 continues, and the steps are repeated until the sewing of the entire fabric is completed.

[0073] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0074] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0075] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for sewing thick fabrics, characterized in that: The method for sewing thick fabrics includes the steps of using a needle cylinder (202) to drive a needle assembly (201) to pre-puncture the thick fabric; The first detector detects the pre-puncture hole on the thick fabric, and at the same time the needle cylinder (202) drives the needle assembly (201) to return to its original position; The sewing component (100) passes through the pre-punctured hole and engages with the rotary hook to sew the thick fabric; After the sewing is completed, the sewing component (100) is restored to its original position, and the needle assembly (201) pre-punctures the thick fabric again, repeating the process. The method for sewing thick fabrics also includes thick fabric sewing equipment; The thick fabric sewing device includes a sewing component (100), comprising a main sewing needle assembly (101) and a sliding assembly (102) disposed on the main sewing needle assembly (101); and a puncture component (200), disposed on one side of the sewing component (100), the puncture component (200) comprising a needle assembly (201), a needle cylinder (202), a cylinder bracket (203), and a sliding block (204), the needle assembly (201) being connected to the cylinder bracket (203) via the needle cylinder (202), the sliding block (204) being symmetrically disposed on both sides of the cylinder bracket (203); the needle assembly (201) and the needle cylinder (202) being connected via a push rod, one end of the needle cylinder (202) being fixedly connected to the cylinder bracket (203) via bolts; The needle assembly (201) includes a needle (201a), a needle mounting block (201b), and a mounting block push rod (201c). The needle (201a) is connected to one end of the mounting block push rod (201c) via the needle mounting block (201b); the other end of the mounting block push rod (201c) is connected to the needle cylinder (202); the main suture needle (101a) of the main suture needle assembly (101) is disposed on the main suture needle. Within the adjusting member (101b), the main suture needle adjusting member (101b) is connected to one end of the adjusting fixing block (101c); the other end of the fixing block (101c) is connected to the sliding plate (102a) of the sliding assembly (102); the sliding assembly (102) further includes a slider (102b) and a slider guide rail (102c), the slider (102b) being disposed on the slider guide rail (102c); the suture component (100) The assembly also includes a push block (103), a push block connecting rod (104), and a main suture needle cylinder (105). One end of the push block connecting rod (104) is connected to the push block (103), and the other end is connected to the main suture needle cylinder (105). The main suture needle (101a) of the main suture needle assembly (101) is located at the center of the sliding plate (102a) of the sliding assembly (102). The needle assembly (201) is positioned relative to the main suture needle assembly (101). The needle assembly (201) is arranged in parallel and the needle (201a) of the needle assembly (201) is located at the center of the sliding plate (102a); it also includes a support component (300), the support component (300) includes a support plate (301), a bracket guide rail (302) and a bracket (303), the bracket guide rail (302) is disposed on the bracket (303); the support plate (301) is disposed on the machine tool and the bracket (303) is disposed on both sides.

2. The method for sewing thick fabrics as described in claim 1, characterized in that: The stitching component (100) passes through the pre-piercing hole and cooperates with the rotary hook to stitch the thick fabric, including the steps of: the main stitching needle cylinder (105) driving the main stitching needle assembly (101) to move toward the pre-piercing hole through the slider assembly (102); The main sewing needle (101a) of the main sewing needle assembly (101) passes through the pre-puncture hole and engages with the rotary hook to sew thick fabric; The main suture needle assembly (101) is restored after threading.

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