Thick material sewing and cutting device

Abstract

The invention belongs to the field of sewing processing equipment, and particularly relates to a thick material sewing cutting device which comprises a connecting steel plate, an upper needle seat is arranged on the connecting steel plate, a presser foot is arranged at the bottom end of the upper needle seat, two sets of synchronous belt guide wheels are rotationally connected to the presser foot and the upper needle seat, and a feeding synchronous belt is in transmission connection between the two sets of synchronous belt guide wheels. A lower machine base is fixedly connected to the bottom of the connecting steel plate, a cloth dragging component is arranged in the lower machine base, a synchronous belt of the upper needle base and the lower machine base is arranged on the connecting steel plate, so that transmission parts on the upper needle base and the lower machine base synchronously rotate, a cutter is arranged on the connecting steel plate, and a rotating shaft of the cutter penetrates through the connecting steel plate and is fixedly connected with a cutter transmission wheel. A needle plate is fixedly connected to the lower machine base, a sewing component is arranged in the upper needle base, a transmission component is arranged on the connecting steel plate, a feeding synchronous belt is used for pressing and conveying thick materials, the conveying process and the machining efficiency and quality are guaranteed, synchronous cutting is achieved during sewing, production of the follow-up process is facilitated, and the problems of raw material waste and edge explosion are avoided.

Description

Technical Field

[0001] The invention belongs to the field of sewing processing equipment, in particular to a thick material sewing and cutting device. Background Art

[0002] A sewing machine is a mechanical device used to sew fabrics and cotton materials. It can sew two or more layers of textile fabrics and cotton materials together. With the development of industrialization, in order to ensure the production efficiency of textile products and the standardization of sewing processing, textile manufacturers use automatic industrial sewing equipment for processing and production. When manufacturers need to sew thick materials, such as sponges, mattresses, quilts, cushions and other textile products, they need to use sewing equipment specifically for sewing thick materials.

[0003] However, the existing ordinary sewing machine heads on the market are not competent for the automatic production of sewing processing of thick materials. Ordinary sewing machine heads use feeding teeth to intermittently push the fabric to move, and the material is put in manually at the starting position of sewing, but this method is difficult to stably and automatically convey thick textiles, resulting in poor feeding, affecting the sewing quality and sewing efficiency. Ordinary sewing machine heads use traditional presser feet to press the thick materials, but during the feeding process, since thick textiles such as mattresses and quilts are mostly elastic, the thick materials are pressed at the bottom of the presser foot and expand near the presser foot due to elasticity. During the movement of the thick materials, the thick materials are difficult to slide smoothly under the presser foot, which also leads to the problem of poor feeding. Therefore, there is a need for a thick material sewing equipment that can automatically sew thick materials and feed them stably and smoothly.

[0004] The Chinese patent with the publication number CN107090670B discloses a thick material sewing machine, including a main shaft, a feed connecting rod, a tooth lifting connecting rod and a presser foot, and a thread take-up rod assembly of a preset length, the thread take-up rod assembly is hinged to the main shaft through a needle bar crank, the presser foot is provided with a preset elevation angle and depression angle, the main shaft is provided with a feed eccentric wheel and a tooth lifting eccentric wheel, the feed eccentric wheel and the tooth lifting eccentric wheel are independent of each other, the upper part of the feed connecting rod is sleeved on the feed eccentric wheel, and the upper part of the tooth lifting connecting rod is sleeved on the tooth lifting eccentric wheel. By setting the feed eccentric wheel and the tooth lifting eccentric wheel as two independent parts, the two can be adjusted separately, that is, the installation angles of the feed eccentric wheel and the tooth lifting eccentric wheel and the main shaft are rotated respectively to meet the sewing requirements of fabrics of different thicknesses, thereby solving the problem that the rated feeding mechanism of the existing sewing machine cannot adapt to the sewing of fabrics of different thicknesses, and the feeding is not smooth, affecting the sewing quality and efficiency.

[0005] However, the above patent still has the following disadvantages:

[0006] 1. The above patent sets the feeding eccentric wheel and the tooth lifting eccentric wheel as two independent parts, so that the two can be adjusted separately. However, when this method is used for thick elastic materials, such as mattresses, cushions, etc., the thick materials will still be difficult to slide smoothly under the presser foot due to the elasticity of the thick materials themselves, which affects the feeding process and further affects the sewing quality and efficiency.

[0007] 2. The above patent is similar to the traditional sewing method. Cutting is required after sewing, which wastes processing time and reduces production efficiency. In addition, the side without stitches will still be flaked after cutting, while the fabric on the side with stitches will be wasted.

[0008] 3. The above-mentioned patent and other existing thick material sewing machines are difficult to achieve a fully automated processing process and cannot get rid of the dependence on manual labor, which wastes manpower and affects processing efficiency while making it difficult to improve the processing standardization effect.

[0009] 4. At the beginning of automatic sewing, the above-mentioned patent needs to lift the presser foot to facilitate the worker to put the textile under the presser foot for compaction. However, the lifting distance of the presser foot in the above-mentioned patent is limited and the lifting height is not enough. When sewing heavy textiles, the worker needs to manually flatten the textiles and then put them under the presser foot, which wastes manpower and affects processing efficiency. Summary of the invention

[0010] In order to overcome the deficiencies of the prior art, the present invention solves the technical problem that the upper needle seat will automatically rise before the material enters the sewing and cutting device, so that very thick materials can be more conveniently placed in the sewing and cutting device, and then the upper needle seat will automatically press down before sewing, and then by setting a feeding synchronous belt, the thick material can be flattened in advance, and the thick material can be actively driven to pass through the bottom side of the presser foot, so that the thick material can be prevented from being difficult to pass through the presser foot smoothly due to its own elastic expansion, thereby achieving stable and smooth transportation of the thick material, and the presser foot of the upper needle seat can adaptively adjust its position during the transportation process by utilizing the elasticity of the presser foot spring, so as to adapt to the stable transportation of thick materials with uneven thickness distribution, thereby improving the application range of the device, and by setting a cutter, the thick material can be cut and divided while being sewn. Cutting greatly improves processing efficiency, and because the cutting position is close to the sewing position and cutting is done simultaneously during sewing, the cutting position of thick materials is accurate, the cutting edge is neat, and the quality of the final product is improved. By setting the cutter to cut at the intervals between multiple stitches, the edges formed by the cutter after cutting the thick material have the stitches locking the edges, thereby effectively avoiding the edge frying of the fabric, and the distance between the cutting edge and the stitches is short, so no excess fabric will be left to cause waste of raw materials. The fabric is detected by the photoelectric fabric detection sensor, and the pneumatic scissors are driven to automatically cut the stitches after the processing is completed, so that the device is fully automated from feeding, feeding, sewing, cutting to the final cutting of the thread, making up for the problem of insufficient automation of existing thick material sewing machines.

[0011] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: a thick material sewing and cutting device, comprising:

[0012] A connecting steel plate is slidably connected to an upper needle seat on the connecting steel plate, two presser foot guide posts are fixedly connected to the bottom end of the upper needle seat, presser feet are sleeved at the lower ends of the two presser foot guide posts, the presser feet are located at the end of the cloth conveying direction and on the upper needle seat above the presser feet, and two sets of synchronous belt guide wheels are rotatably connected respectively, and a plurality of feeding synchronous belts are transmission-connected between the two sets of synchronous belt guide wheels;

[0013] The lower machine base, the bottom of the connecting steel plate is located below the upper needle base and is fixedly connected to the lower machine base, and a mop component is arranged in the lower machine base;

[0014] The cutting knife is rotatably connected to the connecting steel plate at the rear of the presser foot along the cloth conveying direction.

[0015] The rotating shaft of the cutter passes through the connecting steel plate and is fixedly connected to the cutter transmission wheel;

[0016] Among them, a needle plate is fixedly connected to the upper side of the lower machine base below the presser foot, a sewing component is arranged in the upper needle base, a transmission component is arranged on the connecting steel plate, and the cutter transmission wheel is transmission-connected to the transmission component.

[0017] Furthermore, the bottom of the upper needle seat is rotatably connected to multiple synchronous belt drive wheels, each of the synchronous belt drive wheels is connected to the corresponding feeding synchronous belt transmission, the rotating shaft end of the synchronous belt drive wheel is fixedly connected to a feeding connecting rod, the end of the feeding connecting rod away from the synchronous belt drive wheel is hinged with a feeding transmission connecting rod, and the power input end of the feeding transmission connecting rod is connected to the transmission component.

[0018] Furthermore, the outer surface of the feeding synchronous belt has a uniform tooth surface, and the tooth surface of each feeding synchronous belt is meshed and transmission-connected with the surface of the corresponding synchronous belt driving wheel.

[0019] Furthermore, a presser foot spring is arranged between each presser foot guide post and the presser foot, and is surrounded by the outer side of the presser foot guide post. A belt groove is opened on the surface of the presser foot at the corresponding position of each feeding synchronous belt, and each feeding synchronous belt slides in the corresponding belt groove.

[0020] Furthermore, the sewing component includes a needle bar, which is slidably connected to the upper needle seat, and a sewing needle clamp is fixedly connected to the bottom end of the needle bar, and a plurality of sewing needles are clamped and fixedly connected in the sewing needle clamp, and the cutting direction of the cutter is located in the gap between the plurality of sewing needles, and the presser foot and the needle plate are provided with through grooves allowing the sewing needles to pass through, a needle bar transmission synchronous wheel is rotatably provided on the top of the upper needle seat, a sewing drive assembly is transmitted between the needle bar transmission synchronous wheel and the needle bar, the needle bar transmission synchronous wheel and the transmission component are connected via a needle bar transmission synchronous belt, and a bottom line assembly is provided in the lower machine seat, and the bottom line assembly and the transmission component are connected in transmission.

[0021] Furthermore, the mop component includes a tooth plate assembly, the tooth plate assembly is arranged inside the lower machine base, the power input end of the tooth plate assembly is fixedly connected to a mop connecting rod, the end of the mop connecting rod away from the tooth plate assembly is hinged to a mop transmission connecting rod, and the power input end of the mop transmission connecting rod is transmission-connected to the transmission component.

[0022] Furthermore, a group of thread breakage automatic stop sensors are provided on the surface of the upper needle seat at the position corresponding to the needle bar, a group of thread breakage automatic stop sensors are provided on the lower machine seat at the position corresponding to the tooth plate assembly, and a photoelectric fabric detection sensor is provided on the outer side of the upper needle seat above the presser foot.

[0023] Furthermore, the transmission component includes a synchronous wheel, and multiple groups of synchronous wheels are rotatably connected to the outer side of the connecting steel plate and the corresponding positions of the upper needle seat and the lower machine base. The groups of synchronous wheels are connected through synchronous belt transmission. A servo motor is fixedly connected to one side of the connecting steel plate at the corresponding position of the synchronous wheel, and the power output end of the servo motor is transmission-connected to the corresponding synchronous wheel.

[0024] Furthermore, the upper needle seat is symmetrically distributed and fixedly connected to one side of the connecting steel plate, each of the sliders is slidably connected to a slide rail fixedly connected to the connecting steel plate, and the top of the connecting steel plate is fixedly connected to a lifting cylinder, and the extended end of the lifting cylinder is fixedly connected to the upper needle seat. The upper needle seat will automatically rise before the material enters the sewing and cutting device, so that very thick materials can be more conveniently placed in the sewing and cutting device, and then the upper needle seat will automatically press down before sewing, which is convenient for subsequent sewing.

[0025] Furthermore, a thread trimming position is provided at an opening of the lower machine base between the cutter and the presser foot, and a pneumatic scissors is provided at a position corresponding to the thread trimming position at the bottom of the lower machine base.

[0026] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0027] (1) This patent sets an upper needle seat, which automatically rises before the material enters the sewing and cutting device, making it convenient to put heavy textiles into the sewing and cutting device. Then the upper needle seat is automatically pressed down before sewing. At the same time, the feeding synchronous belt flattens the thick material in advance and actively drives the thick material through the bottom side of the presser foot to avoid the thick material from expanding due to its own elasticity and being difficult to pass through the presser foot smoothly, thereby achieving stable and smooth transportation of the thick material.

[0028] (2) The upper needle seat can be adjusted up and down, and the presser foot can adaptively adjust its position during the conveying process by utilizing the elasticity of the presser foot spring, so as to accommodate thick materials with uneven thickness distribution for stable conveying, thereby improving the application range of the device.

[0029] (3) By setting a cutter, thick materials can be cut and divided while they are being sewn, which greatly improves processing efficiency. In addition, since the cutting position is close to the sewing position and cutting is performed simultaneously during sewing, the cutting position of the thick materials is accurate and the cutting edges are neat, thereby improving the quality of the final product.

[0030] (4) By setting the cutter to cut at the intervals between multiple stitches, the edges formed by the cutter after cutting the thick material are locked by the stitches, thereby effectively avoiding the phenomenon of the edge of the fabric being fried. In addition, the distance between the cutting edge and the stitches is short, and no excess fabric will be left to cause waste of raw materials.

[0031] (5) The fabric is detected by a photoelectric fabric detection sensor, and the pneumatic scissors are driven to automatically cut the seam thread after the processing is completed, so that the device is fully automated from feeding, sewing, cutting to the final cutting of the thread, thereby improving the processing efficiency and processing standardization effect of the sewing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is the first stereoscopic schematic diagram of this patent.

[0033] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0034] Figure 3 This is the second stereoscopic schematic diagram of this patent.

[0035] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0036] Figure 5 This is the third stereoscopic schematic diagram of this patent.

[0037] Figure 6 This is the fourth stereoscopic schematic diagram of this patent.

[0038] Explanation of the reference numerals in the accompanying drawings: connecting steel plate 10; upper needle seat 11; lower machine seat 12; presser foot guide pin 13; presser foot spring 14; presser foot 15; belt slot 16; feed timing belt 17; timing belt guide wheel 18; photoelectric cloth detection sensor 19; needle plate 20; sewing needle clamp 21; sewing needle 22; timing belt drive wheel 23; feed transmission connecting rod 24; timing wheel 25; timing belt 26; servo motor 27; lifting cylinder 28; slide rail 29; slide block 30; cutter 31; pneumatic scissors 32; thread breakage automatic stop sensor 33; feed connecting rod 34; cutter transmission wheel 35; mop connecting rod 36; mop transmission connecting rod 37; needle bar transmission timing wheel 38; needle bar transmission timing belt 39; needle bar 40; thread trimming position 41. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0040] like Figure 1-6 As shown, it includes a connecting steel plate 10, two slide rails 29 are fixedly connected to the connecting steel plate 10, a slider 30 is slidably connected to each slide rail 29, an upper needle seat 11 is fixedly connected between the two sliders 30, a lifting cylinder 28 is fixedly connected to the top of the connecting steel plate 10, the extended end of the lifting cylinder 28 is fixedly connected to the upper needle seat 11, two presser foot guide pillars 13 are fixedly connected to the bottom of the upper needle seat 11, presser feet 15 are sleeved at the bottom of the two presser foot guide pillars 13, the presser feet 15 are located at the end of the cloth conveying direction and on the upper needle seat 11 above the presser feet 15, and two sets of synchronous belt guide wheels 18 are rotatably connected respectively, and a plurality of feeding synchronous belts 17 are transmission-connected between the two sets of synchronous belt guide wheels 18.

[0041] By setting the presser foot 15 and the feeding synchronous belt 17, during the sewing process, by driving the feeding synchronous belt 17 to operate, the upper needle seat can automatically rise and fall, cooperate with the synchronous belt to flatten the thick material in advance, and actively drive the thick material to pass through the bottom side of the presser foot 15, so as to avoid the thick material from expanding due to its own elasticity and being difficult to pass through the presser foot 15 smoothly, thereby achieving stable and smooth transportation of the thick material, thereby ensuring the quality and efficiency of sewing the thick material.

[0042] In addition, by setting up the lifting cylinder 28, the material is automatically raised before entering the sewing and cutting device, which makes it convenient to put heavy textiles into the sewing and cutting device. Then the upper needle seat 11 is automatically pressed down before sewing, thereby adapting to thick materials of different thicknesses and compression degrees, making the device widely applicable and flexible and adjustable to processing needs.

[0043] like Figure 1-6As shown, the bottom of the connecting steel plate 10 is fixedly connected to a lower machine base 12, a tooth plate assembly is arranged in the lower machine base 12, a needle plate 20 is fixedly connected to the lower machine base 12 below the presser foot 15, a presser foot spring 14 is arranged between each presser foot guide post 13 and the presser foot 15 and surrounds the outer side of the presser foot guide post 13, a plurality of synchronous belt driving wheels 23 are rotatably connected to the bottom of the upper needle seat 11, a uniform tooth surface is arranged on the outer side surface of the feeding synchronous belt 17, and the tooth surface of each feeding synchronous belt 17 is meshed and transmission-connected with the corresponding synchronous belt driving wheel 23, and a belt groove 16 for accommodating the sliding of the feeding synchronous belt 17 is provided on the surface of the presser foot 15 at the corresponding position of each feeding synchronous belt 17.

[0044] By setting up the lower machine base 12 and the tooth plate assembly, thick materials can be conveyed synchronously with the feeding timing belt 17, thereby improving the smoothness and stability of feeding. In addition, by setting the tooth surface on the outside of the feeding timing belt 17, the timing belt driving wheel 23 can be utilized to engage with the tooth surface of the feeding timing belt 17, thereby playing a role in stably and accurately driving the feeding timing belt 17 to operate. At the same time, the tooth surface of the feeding timing belt 17 is exposed and contacts with the fabric, which can effectively increase the friction between the feeding timing belt 17 and the fabric, thereby improving the stability of thick material conveying.

[0045] Furthermore, by providing the belt groove 16, the feeding timing belt 17 can be guided and limited, thereby ensuring the stable operation of the feeding timing belt 17 and preventing the feeding timing belt 17 from being misplaced and changing the conveying direction. By providing the presser foot spring 14, the presser foot 15 can adaptively change the clamping position within a small range during the process of sewing and conveying the fabric, so as to accommodate the stable conveying of thick materials with uneven thickness distribution.

[0046] like Figure 1-6 As shown, a needle bar 40 is slidably connected to the upper needle seat 11, a needle clamp 21 is fixedly connected to the bottom end of the needle bar 40, a plurality of sewing needles 22 are fixedly connected to the sewing needle clamp 21, and a through groove for allowing the sewing needle 22 to pass through is provided on the presser foot 15 and the needle plate 20 at the corresponding position of each sewing needle 22, a needle bar transmission synchronous wheel 38 is rotatably connected to the top of the upper needle seat 11, and the needle bar transmission synchronous wheel 38 and 44 are connected through a sewing drive assembly, and a bottom thread assembly is arranged in the lower machine seat 12.

[0047] By providing the sewing needle 22, the cloth can be sewn, and by providing a plurality of sewing needles 22, a plurality of stitches can be sewn simultaneously, thereby avoiding the phenomenon of fried edges due to lack of stitches on one side of the cloth after subsequent cutting.

[0048] like Figure 1-6As shown, multiple groups of synchronous wheels 25 are rotatably connected to the outer side of the connecting steel plate 10 and the corresponding positions of the upper needle seat 11 and the lower machine seat 12, and each group of synchronous wheels 25 is connected by a synchronous belt 26. A servo motor 27 is fixedly connected to one side of the connecting steel plate 10 at the corresponding position of the synchronous wheel 25. The power output end of the servo motor 27 is connected by transmission to the corresponding synchronous wheel 25. A cutter 31 is rotatably connected to the connecting steel plate 10 at the rear of the presser foot 15 along the fabric conveying direction. The rotating shaft of the cutter 31 passes through the connecting steel plate 10 and is fixedly connected to a cutter drive wheel 35. The cutter drive wheel 35 is connected to a synchronous wheel 25 by a synchronous belt 26, and the needle bar drive synchronous wheel 38 is connected to a synchronous wheel 25 by a needle bar drive synchronous belt 39.

[0049] By setting the cutter 31, the thick material can be cut and divided while being sewn, which greatly improves the processing efficiency. Moreover, since the cutting position is close to the sewing position and cutting is performed simultaneously during sewing, the cutting position of the thick material is accurate, the cutting edge is neat, and the quality of the final product is improved.

[0050] Furthermore, since multiple sewing needles 22 sew multiple seams, and the cutter 31 cuts at the intervals between the multiple seams, the edges formed by the cutter 31 after cutting the thick material are locked by the seams, thereby effectively avoiding the phenomenon of the edge of the fabric being fried, and the distance between the cut edge and the seam is short, so no excess fabric will be left to cause waste of raw materials.

[0051] like Figure 1-6 As shown, a thread trimming position 41 is provided on the lower machine base 12 between the presser foot 15 and the cutter 31, a pneumatic scissors 32 is provided at the bottom of the lower machine base 12 at a position corresponding to the thread trimming position 41, a photoelectric cloth detection sensor 19 is provided on the outer side of the upper needle base 11 above the presser foot 15, and two sets of thread breakage automatic stop sensors 33 are respectively provided at the outer side of the upper needle base 11 at a position corresponding to the needle bar 40 and on the lower machine base 12 at the bottom thread assembly.

[0052] By setting up the photoelectric fabric detection sensor 19, it is possible to automatically detect whether the sewing and cutting processing of thick materials is completed, so that after the processing is completed, the pneumatic scissors 32 are automatically controlled to cut the suture connecting line to realize automatic thread cutting, further improve the degree of automation of sewing and cutting processing, and improve processing efficiency. By setting up the thread breakage automatic stop sensor 33, it is possible to detect whether the suture breaks during the processing, and then stop the machine in time when it breaks, avoiding meaningless operation of the device and protecting the processing results.

[0053] In this embodiment, initially, the operator installs the thick material sewing machine device on a dedicated cutting and sewing device, and connects the power supply and control system. During operation, the thick material is placed on the thick material sewing machine and fixed stationary, and the device moves linearly on the thick material sewing machine to sew and cut the thick material.

[0054] During processing, the operator first controls the lifting cylinder 28 to retract through the control system to raise the upper needle seat 11 and the presser foot 15, and slowly moves the device to allow the thick material to enter between the presser foot 15 and the needle plate 20, and then controls the lifting cylinder 28 to extend outward again, so that the presser foot 15 moves down to press the thick material, and then starts the device. The feeding timing belt 17 and the tooth plate assembly cooperate with each other to flatten the thick material and transport it in the direction of the cutter 31. The sewing parts sew the cloth, and the cutter 31 rotates at high speed to cut the cloth. Sewing and cutting are carried out simultaneously, which improves processing efficiency and makes the cutting edges neat and accurate.

[0055] At the same time, the synchronous belt driving wheel 23 meshes with the tooth surface on the surface of the feeding synchronous belt 17 to drive the feeding synchronous belt 17 to operate stably, and the belt groove 16 guides and limits the feeding synchronous belt 17, so that the feeding synchronous belt 17 always maintains a stable position and speed to transport the cloth, and the tooth surface of the feeding synchronous belt 17 faces outward, which can contact with the cloth to increase the friction between the feeding synchronous belt 17 and the cloth, thereby further improving the stability of conveying the cloth.

[0056] Moreover, during the conveying process, due to the uneven distribution of the fabric thickness, the distance between the presser foot 15 and the needle plate 20 cannot always be consistent during the movement of the fabric. By providing the presser foot spring 14, the presser foot 15 can adaptively change its height within a small range to adapt to the change in fabric thickness during the conveying process, thereby improving the stability and continuity of fabric conveying.

[0057] When the cloth passes through the range of the presser foot 15 and enters the range of the cutter 31, the high-speed rotating cutter 31 cuts the continuously conveyed cloth. Since the cutting direction of the cutter 31 is located at the gap between the multiple sewing needles 22, there are stitches on the two cut edges produced after cutting, which effectively avoids the problem of fried edges on the cut edges. In addition, since the gap between the sewing needles 22 is small, the distance between the cut edge and the stitches after cutting is short, so that no excess cloth is produced, thereby saving raw materials.

[0058] During the processing, the photoelectric cloth detection sensor 19 is always turned on and detects the cloth. When the device moves to the end of the cloth and the photoelectric cloth detection sensor 19 cannot detect the cloth, the device is automatically controlled to stop, and the pneumatic scissors 32 are driven to extend from the thread cutting position 41 and cut the suture to achieve the effect of automatic thread cutting, so that the device is fully automated from feeding, sewing, cutting to final thread cutting, thereby improving the processing efficiency and processing standardization effect of sewing processing.

[0059] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0060] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0061] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A thick material sewing and cutting device, characterized in that: The thick material sewing and cutting machine comprises: A connecting steel plate (10), an upper needle seat (11) is slidably connected to the connecting steel plate (10), two presser foot guide posts (13) are fixedly connected to the bottom end of the upper needle seat (11), presser feet (15) are sleeved at the lower ends of the two presser foot guide posts (13), the presser feet (15) are located at the end of the cloth conveying direction and on the upper needle seat (11) above the presser feet (15) are rotatably connected to two groups of synchronous belt guide wheels (18), and a plurality of feeding synchronous belts (17) are transmission-connected between the two groups of synchronous belt guide wheels (18); A lower machine base (12), wherein the bottom of the connecting steel plate (10) is located below the upper needle base (11) and is fixedly connected to the lower machine base (12), and a mopping component is arranged inside the lower machine base (12); A cutter (31), the cutter (31) is rotatably connected to the connecting steel plate (10) at a position behind the presser foot (15) along the cloth conveying direction, and the rotating shaft of the cutter (31) passes through the connecting steel plate (10) and is fixedly connected to a cutter transmission wheel (35); The upper side of the lower machine base (12) is fixedly connected with a needle plate (20) below the presser foot (15), a sewing component is arranged inside the upper needle base (11), a transmission component is arranged on the connecting steel plate (10), and the cutter transmission wheel (35) is transmission-connected to the transmission component.

2. A thick material sewing and cutting device according to claim 1, characterized in that: The bottom of the upper needle seat (11) is rotatably connected to a plurality of synchronous belt drive wheels (23), each of which is transmission-connected to a corresponding feeding synchronous belt (17), a feeding connecting rod (34) is fixedly connected to the rotating shaft end of the synchronous belt drive wheel (23), and a feeding transmission connecting rod (24) is hinged at one end of the feeding connecting rod (34) away from the synchronous belt drive wheel (23), and a power input end of the feeding transmission connecting rod (24) is transmission-connected to a transmission component.

3. A thick material sewing and cutting device according to claim 2, characterized in that: The outer surface of the feeding synchronous belt (17) has a uniform tooth surface, and each tooth surface of the feeding synchronous belt (17) is meshed and transmission-connected with the surface of the corresponding synchronous belt driving wheel (23).

4. A thick material sewing and cutting device according to claim 1, characterized in that: A presser foot spring (14) is arranged between each of the presser foot guide pillars (13) and the presser foot (15), and surrounds the outer side of the presser foot guide pillar (13). A belt groove (16) is provided on the surface of the presser foot (15) at a position corresponding to each feeding synchronous belt (17). Each of the feeding synchronous belts (17) slides in the corresponding belt groove (16).

5. A thick material sewing and cutting device according to claim 1, characterized in that: The sewing component comprises a needle bar (40), the needle bar (40) is slidably connected in the upper needle seat (11), a sewing needle clamp (21) is fixedly connected at the bottom end of the needle bar (40), a plurality of sewing needles (22) are clamped and fixedly connected in the sewing needle clamp (21), the cutting direction of the cutter (31) is located at the gap between the plurality of sewing needles (22), the presser foot (15) and the needle plate (20) are provided with through grooves allowing the sewing needles (22) to pass through, a needle bar transmission synchronous wheel (38) is rotatably provided at the top of the upper needle seat (11), a sewing drive assembly is transmitted between the needle bar transmission synchronous wheel (38) and the needle bar (40), the needle bar transmission synchronous wheel (38) and the transmission component are transmission-connected via a needle bar transmission synchronous belt (39), a bottom thread assembly is provided in the lower machine seat (12), and the bottom thread assembly and the transmission component are transmission-connected.

6. A thick material sewing and cutting device according to claim 5, characterized in that: The mop component comprises a tooth plate assembly, the tooth plate assembly is arranged inside the lower machine base (12), a mop connecting rod (36) is fixedly connected to the power input end of the tooth plate assembly, a mop transmission connecting rod (37) is hingedly connected to one end of the mop connecting rod (36) away from the tooth plate assembly, and the power input end of the mop transmission connecting rod (37) is transmission-connected to the transmission component.

7. A thick material sewing and cutting device according to claim 6, characterized in that: A group of thread breakage automatic stop sensors (33) are arranged on the surface of the upper needle seat (11) at a position corresponding to the needle bar (40), a group of thread breakage automatic stop sensors (33) are arranged on the lower machine seat (12) at a position corresponding to the tooth plate assembly, and a photoelectric cloth detection sensor (19) is arranged on the outer side of the upper needle seat (11) above the presser foot (15).

8. A thick material sewing and cutting device according to claim 1, characterized in that: The transmission component comprises a synchronous wheel (25), and a plurality of groups of synchronous wheels (25) are rotatably connected on the outer side of the connecting steel plate (10) and at corresponding positions of the upper needle seat (11) and the lower machine seat (12), and each group of the synchronous wheels (25) is connected by a synchronous belt (26). A servo motor (27) is fixedly connected to one side of the connecting steel plate (10) at a position corresponding to the synchronous wheel (25), and a power output end of the servo motor (27) is connected by transmission to the corresponding synchronous wheel (25).

9. A thick material sewing and cutting device according to claim 1, characterized in that: Two sliders (30) are symmetrically distributed and fixedly connected to one side of the upper needle seat (11) close to the connecting steel plate (10), and each slider (30) is slidably connected to a slide rail (29) fixedly connected to the connecting steel plate (10). A lifting cylinder (28) is fixedly connected to the top of the connecting steel plate (10), and the extended end of the lifting cylinder (28) is fixedly connected to the upper needle seat (11).

10. A thick material sewing and cutting device according to claim 1, characterized in that: The lower machine base (12) is provided with an automatic thread trimming position (41) between the cutter (31) and the presser foot (15), and a pneumatic scissors (32) is provided at a position corresponding to the thread trimming position (41) at the bottom of the lower machine base (12).

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