T-shirt cuff covering equipment with cutter for trimming

Abstract

The invention relates to auxiliary equipment for garment production, in particular to T-shirt cuff covering equipment with a cutter for trimming, which comprises a sewing machine fixedly arranged on a rack tabletop, a left wheel unit and a right wheel unit are respectively arranged on the left side and the right side of the sewing machine, and a surrounding area trimming unit is arranged between the left wheel unit and the right wheel unit. A trimming motor of the trimming unit is arranged on a sewing machine above a needle plate, a motor shaft is fixedly connected with a shaft sleeve, the shaft sleeve is matched with a sliding block, the sliding block is fixedly connected with a shaft pin, and the shaft sleeve is in threaded connection with a jackscrew to adjust the eccentricity of the shaft pin. A fixed knife which is embedded leftwards and has a blade part flush with the needle plate is arranged on the right side of the needle plate, the fixed knife and a hook-shaped movable knife form a shearing pair, the driving end of the movable knife is connected with a trimming driving shaft and is connected with a shaft pin through a swing rod and a connecting rod, and trimming operation on a small-size surrounding area of clothes is achieved. According to the cuff sewing machine, a traditional motor underlying mode is changed, space is greatly saved, and the problem that small-specification cuff sewing is difficult to achieve due to space limitation is solved.

Description

Technical Field

[0001] The invention relates to auxiliary equipment for garment production, in particular to a T-shirt cuff trimming device with a cutter. Background Art

[0002] In the field of clothing production, the precision and efficiency of sewing processes have always been the key goals pursued by the industry. Although traditional clothing sewing equipment can basically meet production needs when processing regular-sized fabrics, with the increasing diversification of clothing styles and the continuous increase in consumers' quality requirements, the sewing problems of small-sized enclosed areas of clothing such as collars and cuffs have become increasingly prominent.

[0003] The applicant previously disclosed a garment hem loop sewing device with publication number CN110607611A, which includes a stretch sewing machine fixed on a frame table, a left-turning wheel and a right-turning wheel are respectively arranged on the left and right sides of the stretch sewing machine, and the ring-shaped hem of the garment is driven by the left-turning wheel and the right-turning wheel to rotate, and the stretch sewing machine performs loop sewing on the hem in a state of inverted full bone. However, compared with the hem part, the enclosed area formed on the garment parts where the neckline and cuffs are located is smaller in size, has a significant difference in size order, is more complex in shape, and requires higher precision and flexibility. This local small size characteristic makes it difficult for the existing garment hem loop sewing device to be directly applied to local small size enclosed areas such as necklines and cuffs during the processing and manufacturing process.

[0004] In addition, the applicant has also disclosed a double-worm deflection correction mopping device with publication number CN 215517902 U. Since the drive pulley close to the roller shaft is located on the inner side of the steering pulley, this layout limits the miniaturization of the roller diameter from the perspective of mechanical principle and spatial structure. When sewing operations in small spaces such as collars and cuffs, it is difficult to effectively perform functions due to the large equipment volume and structural size, and cannot meet the processing requirements of small-sized enclosed areas.

[0005] In addition, the existing technology lacks an automated trimming function for small-sized enclosed areas. In production practice, manual trimming is time-consuming and labor-intensive, extremely inefficient, and seriously interfered by human factors such as workers' proficiency and concentration, making it difficult to ensure the consistency and high precision of the trimming effect. The uneven edges of the fabric not only increase the complexity and cost of subsequent processing procedures, but also hinder the advancement of large-scale standardized production due to poor quality stability, which runs counter to the development trend of the modern clothing industry in pursuit of high quality, personalization, and rapid response to market demand. Summary of the invention

[0006] In order to overcome the defects or one of the defects of the prior art, the present invention discloses a seam-sealing device specially used for small-sized enclosed areas of clothing, and the technical solution adopted is: A T-shirt cuff trimming device with a cutter comprises a sewing machine fixed on a frame table, a left wheel unit, a right wheel unit and an enclosed area trimming unit located between the left wheel unit and the right wheel unit are respectively arranged on the left and right sides of the sewing machine, and the enclosed area trimming unit comprises a trimming motor on the sewing machine placed above the needle plate, a shaft sleeve is fixed on the motor shaft of the trimming motor, the shaft sleeve slides radially to cooperate with a slider, the slider is fixed to an axle pin, and a top screw abutting against the slider is screwed on the shaft sleeve To adjust the eccentricity of the shaft pin and the motor shaft of the trimming motor, the shaft pin is connected to one end of the connecting rod; a fixed knife is fixed on the right side of the needle plate of the sewing machine, which is embedded to the left in the needle plate, close to the presser foot, and the blade is flush with the needle plate. The fixed knife and the hook-shaped movable knife form a shearing pair, and the driving end of the movable knife is fixed to the trimming drive shaft with an axial direction in the front-to-back direction. The trimming drive shaft is rotated on the body of the sewing machine on the right side of the needle plate, and the trimming drive shaft is fixed to one end of the rocker arm, and the other end of the rocker arm is connected to the other end of the connecting rod.

[0007] Furthermore, the left wheel unit includes a left wheel, and the right wheel unit includes a right wheel. The upper wheel rims of the left wheel and the right wheel are basically flush with the plane of the needle plate of the sewing machine. After the small-size enclosed area of ​​the clothing is put on the left wheel and the right wheel, it is tightened by the left wheel that can be displaced left and right, and rotates under the drive of the right wheel and / or the left wheel of the left wheel. The diameter of the left wheel is within 25 mm, and the diameter of the right wheel is within 45 mm. The left wheel can abut the needle plate of the sewing machine, and the right wheel is within 70 mm from the edge of the needle plate of the sewing machine.

[0008] Furthermore, it also includes a clothing supporting unit arranged on the frame below the needle plate of the sewing machine, and the clothing supporting unit can make the remaining part of the clothing rotate along with the rotation of the small-sized enclosed area without falling.

[0009] Furthermore, the clothing supporting unit includes a receiving basin and a fixed plate fixedly connected to the frame below the needle plate of the sewing machine, a follow-up motor is fixedly arranged below the fixed plate, a follow-up shaft is rotatably arranged above the fixed plate through a bearing, a motor shaft of the follow-up motor is fixedly connected to the follow-up shaft, and the follow-up motor rotates synchronously with the right wheel motor driving the right wheel so that the rest of the clothing in the receiving basin can rotate clockwise or counterclockwise as the small-sized enclosed area rotates.

[0010] Furthermore, a trimming suction pipe is fixedly installed on the right side of the needle plate of the sewing machine, and the suction port of the trimming suction pipe is close to the movable knife and covers the movement range of the movable knife; a cloth guide plate is arranged on the machine body on the left side of the trimming suction pipe and below the needle plate to assist in unfolding the cloth.

[0011] Furthermore, the right wheel unit also includes a correction mechanism configured on the right rotating wheel and a photoeye configured on the right side of the right rotating wheel. The photoeye transmits the collected signal to the control device, and the control device drives the correction mechanism to correct the small-sized enclosed area of ​​the clothing mounted on the right rotating wheel.

[0012] Furthermore, the right-turning wheel includes a front wheel and a rear wheel fixedly connected to the front wheel, and the correction mechanism is arranged on the rear wheel; the rear wheel includes a front end disc, a front intermediate disc, 5 fan-shaped support blocks, a rear intermediate disc and a rear end disc fixedly connected in sequence from front to back, the rear end disc extends backward to form a sleeve, and a worm shaft driven by a correction motor is connected in the sleeve, a worm is fixed at the inner end of the worm shaft, and the worm is located in a worm accommodating cavity opened in the middle of the opposite ends of the rear intermediate disc and the rear end disc, the rear end surface of the rear intermediate disc and the front end surface of the rear end disc are evenly opened with 5 worm gear accommodating grooves in the radial direction, and a worm gear is respectively rotated in each worm gear accommodating groove, and these worm gears are respectively meshed with the worm; at the same time, a wheel accommodating groove is opened on the front end surface of the rear intermediate disc corresponding to each of the worm gear accommodating grooves, and a wheel accommodating groove is rotated in each of the wheel accommodating grooves. A passing wheel, the passing wheel includes an intermediate wheel body meshing with the worm gear, and the two sides of the intermediate wheel body are semi-circular groove bodies; pulley shaft accommodating grooves are respectively opened on the two sides of the front end of each of the fan-shaped support blocks, and a pulley is rotated between the two adjacent fan-shaped support blocks through the pulley shaft accommodating groove, and each of the pulleys has two semi-circular grooves corresponding to the two semi-circular groove bodies, and two endless circular belts are wound around each of the pulleys and the corresponding each of the passing wheels.

[0013] Furthermore, the fan-shaped support block has an outer circular surface with the same curvature as the rear intermediate disk and the rear end disk; the front intermediate disk extends backward to form an arc-shaped guard plate extending between two adjacent endless circular belts between two adjacent fan-shaped support blocks, and the arc-shaped guard plate has an outer circular surface with the same curvature as the rear intermediate disk and the rear end disk.

[0014] Furthermore, the right wheel unit also includes a folding mechanism, which includes a folding roller arranged behind the rear wheel, a folding plate arranged on the frame corresponding to the folding roller, and a plurality of blowing pipes with inflation and blowing holes blowing toward the small-sized enclosed area of ​​the clothing.

[0015] Furthermore, the left wheel unit includes a linear module fixed on the frame and having a stroke in the left and right directions. The sliding part of the linear module is fixedly connected to the left-turn wheel seat. The left-turn wheel motor is fixed on the left-turn wheel seat. The left-turn wheel seat extends to the right to form a cantilever. The free end of the cantilever is rotated to the left-turn wheel. The left-turn wheel is connected to the motor shaft of the left-turn wheel motor through a synchronous belt. The cantilever gradually tapers from left to right, and the left-turn wheel is in the shape of a round rod.

[0016] The following are the beneficial technical effects of the present invention compared with the prior art: 1. Adapt to small-sized enclosed areas: In the prior art, there are difficulties in sewing small-sized enclosed areas of clothing such as collars and cuffs. For example, the traditional hem loop sewing device of clothing is difficult to be directly applied to small-sized enclosed areas due to the difference in size and shape complexity; the double-worm deviation correction mopping device cannot meet the needs of sewing operations in small spaces due to structural layout limitations. The seam-closing device of the present invention is specially designed for small-sized enclosed areas of clothing. Through its unique structural layout, it can effectively solve the problem of insufficient precision and flexibility when sewing small-sized enclosed areas, and better adapt to the complex shapes and high-precision requirements of small-sized enclosed areas.

[0017] 2. Optimize space utilization: The trimming motor of the enclosed area trimming unit is placed on the sewing machine above the needle plate, which changes the traditional method of placing the motor downward, greatly saves space, and solves the problem of sewing small-sized cuffs due to space limitations. At the same time, the fixed knife set on the right side of the sewing machine needle plate is embedded in the needle plate to the left, close to the presser foot, and the blade is flush with the needle plate, which further reduces the space occupancy and makes the layout of the entire device more compact and reasonable, which is more suitable for the operating space of the small-sized enclosed area.

[0018] 3. Realize automated trimming: The existing technology lacks automated trimming functions for small-sized enclosed areas, and manual trimming is inefficient and of unstable quality. The present invention realizes automated trimming through the enclosed area trimming unit. The trimming motor drives the movable knife to cooperate with the fixed knife through the shaft sleeve, slider, shaft pin, connecting rod, rocker rod and other components to trim the small-sized enclosed area of ​​the garment. This automated trimming method is not affected by human factors, can ensure the consistency and high precision of the trimming effect, improves production efficiency, reduces subsequent processing costs, helps promote large-scale standardized production, and conforms to the development trend of the modern clothing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 yes Figure 1 Front view of .

[0021] Figure 3 yes Figure 1 Top view of the .

[0022] Figure 4 It is a schematic diagram of the position of the enclosed area trimming unit of the present invention in a sewing machine.

[0023] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0024] Figure 6It is a structural schematic diagram of the left wheel unit of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the right wheel unit of the present invention.

[0026] Figure 8 It is a structural schematic diagram of the right-turning wheel of the present invention.

[0027] Fig. 9 yes Figure 8 Schematic diagram of the cross-sectional structure.

[0028] Fig.10 It is a schematic diagram of the separation of components of the right-turning wheel of the present invention.

[0029] Fig.11 yes Fig.10 A partial enlarged view of point B in the middle.

[0030] Fig.12 yes Fig.10 A partial enlarged view of point C in the middle.

[0031] Fig.13 It is a schematic diagram of component separation of the right-turn wheel of the present invention from another perspective.

[0032] Fig.14 yes Fig.13 A partial enlarged view of point D in the middle.

[0033] Fig.15 yes Fig.13 A partial enlarged view of point E in the middle.

[0034] Fig.16 It is a structural schematic diagram of the worm gear and the gear of the present invention. DETAILED DESCRIPTION

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figure 1-16 As shown, a T-shirt cuff trimming device with a cutter comprises a sewing machine 100 fixedly mounted on a frame table, a left wheel unit 200, a right wheel unit 300 and an enclosed area trimming unit 500 located between the left wheel unit 200 and the right wheel unit 300 are respectively arranged on the left and right sides of the sewing machine 100, characterized in that the enclosed area trimming unit 500 comprises a trimming motor 501 on the sewing machine 100 placed above the needle plate 101, a shaft sleeve 502 is fixedly connected to the motor shaft of the trimming motor 501, the shaft sleeve 502 slides radially to cooperate with a slider 503, the slider 503 is fixedly connected to a shaft pin 504, and a top screw abutting against the slider 503 is screwed on the shaft sleeve 502 to adjust the The eccentricity of the shaft pin 504 and the motor shaft of the trimming motor 501 is adjusted, and the shaft pin 504 is connected to one end of the connecting rod 505; a fixed knife 506 is fixedly provided on the right side of the needle plate 101 of the sewing machine 100, which is embedded in the needle plate 101 to the left, close to the presser foot, and the blade is flush with the needle plate 101. The fixed knife 506 and the hook-shaped movable knife 507 form a shearing pair, and the driving end of the movable knife 507 is fixed to a trimming drive shaft 508 with an axial direction in the front-to-back direction. The trimming drive shaft 508 is rotatably arranged on the body of the right side of the needle plate 101 of the sewing machine 100, and the trimming drive shaft 508 is fixed to one end of a rocker 509, and the other end of the rocker 509 is connected to the other end of the connecting rod 505.

[0039] The left wheel unit 200 includes a left wheel 201, and the right wheel unit 300 includes a right wheel 301. The upper wheel rims of the left wheel 201 and the right wheel 301 are substantially flush with the plane of the needle plate 101 of the sewing machine 100. After the small-sized enclosed area of ​​the garment is put on the left wheel 201 and the right wheel 301, it is tightened by the left wheel 201 which can be displaced left and right, and rotates under the drive of the right wheel 301 and / or the left wheel 201 of the left wheel 201. The diameter of the left wheel 201 is within 25 mm, and the diameter of the right wheel 301 is within 45 mm. The left wheel 201 can abut against the needle plate 101 of the sewing machine 100, and the right wheel 301 is within 70 mm from the edge of the needle plate 101 of the sewing machine 100.

[0040] 1. Basic wheel support and rotary motion principle 1. Support positioning: This seam-sealing device mainly relies on the left-hand wheel 201 in the left-hand wheel unit 200 and the right-hand wheel 301 in the right-hand wheel unit 300 to support the small-sized enclosed areas of clothing (such as necklines, cuffs, etc.). When the small-sized enclosed areas of clothing are put on the left-hand wheel 201 and the right-hand wheel 301, the left-hand wheel 201 plays a tightening role. The left-hand wheel 201 has the characteristic of left-right displacement, which enables it to flexibly adjust its position according to enclosed areas of different sizes and shapes. For example, for clothing with a wider neckline, the left-hand wheel 201 can be appropriately moved to the right to fit more closely and support the edge of the neckline to ensure that the clothing remains stable in subsequent operations. This adjustment capability enables the device to adapt to a variety of small-sized enclosed areas of clothing, thereby improving the versatility of the device.

[0041] 2. Slewing drive: The right wheel 301 and / or the left wheel 201 are responsible for driving the small-sized enclosed area of ​​the garment to rotate. The upper rims of the left wheel 201 and the right wheel 301 are flush with or slightly higher than the plane of the needle plate 101 of the sewing machine 100. Such a height design ensures that when the wheels rotate, the enclosed area of ​​the garment on them can rotate at a stable trajectory and a suitable speed.

[0042] The diameter of the left rotating wheel 201 is controlled within 25 mm, and the diameter of the right rotating wheel 301 is controlled within 45 mm. This smaller wheel size is specially designed to adapt to small-sized enclosed areas such as necklines and cuffs. Compared with the traditional larger-sized rotating wheels, the small rotating wheels of this device can more accurately control the movement of clothing when operating small-sized enclosed areas, avoiding the problem of inflexible operation caused by the wheels being too large. For example, when sewing cuffs, the small-sized rotating wheels can better fit the curve of the cuffs, so that the cuffs remain stable during the rotation process, thereby improving the accuracy and quality of sewing.

[0043] 2. The operation principle of the sewing machine 1. Position adaptation: The sewing machine 100 is the core of the entire device, responsible for closing the seams of the small-sized enclosed area of ​​the garment. The left-hand wheel 201 can abut the needle plate 101 of the sewing machine 100, and the right-hand wheel 301 is within 70 mm from the edge of the needle plate 101 of the sewing machine 100. This layout enables the enclosed area of ​​the garment to be in the best position when closing the seams. The left-hand wheel 201 abuts the needle plate 101, ensuring that the garment has stable support near the needle of the sewing machine, while the distance limit between the right-hand wheel 301 and the edge of the needle plate 101 ensures that the enclosed area of ​​the garment can be accurately operated within the working range of the sewing machine. This layout design allows the needle of the sewing machine 100 to accurately sew the enclosed area of ​​the garment.

[0044] 2. Seam-sealing execution: During the seaming process, the sewing machine 100 operates according to pre-set parameters and modes. These parameters and modes are set according to the style, fabric and specific requirements of the seams of the garment, such as the density of the stitches, the size of the stitches, etc. The sewing machine 100 passes the stitches through the small enclosed area of ​​the garment and forms a seam-seaming effect by interweaving the needles and threads, thereby meeting the stitching and decoration requirements of the garment. For example, for the collars of some high-end garments, finer stitches may be set to improve the aesthetics and durability of the collars.

[0045] 3. Collaborative working principle 1. Line speed matching and smooth rotation: When the seam-closing device is working, the right wheel 301 and the left wheel 201 jointly support and drive the small-sized enclosed area of ​​the garment to rotate. In order to ensure that the garment does not slip between the wheels during the rotation process, in an ideal state, the linear speed of the garment in contact with the right wheel 301 and the left wheel 201 should be equal. This is because if the linear speeds are inconsistent, the garment will slip or wrinkle on the wheels, affecting the quality of the seam-closing. For example, when the linear speed of the right wheel 301 is greater than the linear speed of the garment in contact with it, the garment may be pulled and deformed; otherwise, the garment may pile up on the wheels. Only when the linear speeds are equal can the garment rotate smoothly with the wheels to ensure the stability of the seam-closing operation.

[0046] 2. Left wheel displacement and tension adjustment: The left-right displacement function of the left-hand wheel 201 in the left-hand wheel unit 200 is not only used to support the enclosed area of ​​the garment, but also to adjust the tightness of the garment. When the left-hand wheel 201 moves to the left or right, the tightening position and strength of the garment will change. For example, when the left-hand wheel 201 moves to the left, the tightening strength on the left side of the garment will be increased, making the garment tighter on the wheel; conversely, moving to the right will reduce the tightening strength on the left side and adjust the tightness of the garment. This adjustment can ensure that during the seam-seaming process, the garment always stably follows the movement of the wheel, avoiding seam-seaming problems caused by the garment being too loose or too tight, such as crooked seams, uneven stitches, etc.

[0047] In another preferred embodiment, it also includes a clothing supporting unit 400 arranged on the frame below the needle plate 101 of the sewing machine 100, and the clothing supporting unit 400 can make the rest of the clothing rotate along with the small-sized enclosed area without falling; specifically, the clothing supporting unit 400 includes a receiving basin 401, and a fixed plate 402 fixedly connected to the frame below the needle plate 101 of the sewing machine 100, a follow-up motor 403 is fixedly arranged below the fixed plate 402, and a follow-up shaft 404 is rotatably arranged above the fixed plate 402 through a bearing, and the motor shaft of the follow-up motor 403 is fixedly connected to the follow-up shaft 404, and the follow-up motor 403 rotates synchronously with the right-turning wheel motor 302 that drives the right-turning wheel 301 so that the rest of the clothing in the receiving basin 401 can rotate clockwise or counterclockwise along with the rotation of the small-sized enclosed area. During the seaming operation, the rotational movement of the garment enclosed area and the rotation of the receiving basin 401 are performed synchronously, ensuring the coordinated movement between the two. This synchronous rotation can avoid the additional friction, pulling or dislocation caused by the uncoordinated movement of the two, making the entire seaming process smoother and smoother, and reducing the quality problems such as uneven stitches and local deformation of garments caused by unsynchronized movement. The fixed plate 402 is fixedly connected to the frame below the needle plate 101 of the sewing machine 100, providing a stable support base for the entire garment rotation support unit 400. Through the fixed plate 402, the follow-up motor 403 and the follow-up shaft 404 are firmly mounted on the equipment. This not only ensures that the follow-up motor 403 will not be displaced or shaken during operation, but also provides stable support for the rotation of the follow-up shaft 404. The setting of the bearing further optimizes the rotation performance of the follow-up shaft 404, so that it can still maintain flexible and smooth rotation under certain axial and radial loads, thereby ensuring the rotation stability of the receiving basin 401. Due to the synchronous rotation of the follower motor 403 and the right-hand motor 302, the coordination between the rotary motion driven by the rotating wheel and the auxiliary rotation of the receiving basin 401 during the seaming process of the garment is more tacit. This tacit coordination allows the seaming operation to maintain a good state at different rotation speeds and sewing speeds. Whether it is processing the collar, cuffs or other small-sized enclosed areas, the stitches of the seams can be more uniform and the size can be more accurate. At the same time, the stability and accuracy of the structure can reduce the interruption or repeated operation of the seams caused by factors such as structural vibration and component displacement, improve the efficiency of the seams, and can better ensure the quality of the seams, which helps to meet the requirements of high-precision and fast production of seams in small-sized enclosed areas in clothing production, and ultimately improve the overall quality and production efficiency of the product.

[0048] In another preferred embodiment, a trimming suction pipe 510 is fixedly provided on the right side of the needle plate 101 of the sewing machine 100, and the suction port of the trimming suction pipe 510 is close to the movable knife 507 and covers the movement range of the movable knife 507; a cloth guide plate 511 is arranged on the left side of the trimming suction pipe 510 and on the machine body below the needle plate 101 to assist in unfolding the cloth. During the trimming operation, the movable knife 507 shears the edge of the small-sized enclosed area of ​​the garment, which will produce a large amount of cloth debris. At this time, the trimming suction pipe 510 plays a key role in cleaning and waste disposal. Its suction port can suck away the debris in time, effectively keep the working area clean, prevent the debris from accumulating around the equipment, and avoid interference with subsequent seam closing and trimming operations, such as preventing the debris from entering the inside of the equipment to affect normal operation, or mixing into the sewing area to affect the sewing and trimming quality. Since the debris can be cleaned in time, the operator does not need to stop the machine frequently for cleaning, which improves the working efficiency of the entire seam-sealing device, reduces product quality problems caused by debris interference, and ensures the cleanliness and appearance quality of the clothing products. A cloth guide plate 511 is arranged on the machine body on the left side of the trimming suction pipe 510 and below the needle plate 101 to assist in unfolding the clothing fabric in the small-sized enclosed area. In the process of sewing clothing, especially for the fabric in the small-sized enclosed area, it is small in area and special in shape, and it is easy to wrinkle, twist, etc. during the feeding process, which will seriously affect the accuracy and quality of sewing. At this time, the cloth guide plate 511 plays a key role. It is arranged on the machine body on the left side of the trimming suction pipe 510 and below the needle plate 101, and the position design is very clever. When the clothing fabric in the small-sized enclosed area enters the sewing link, the cloth guide plate 511 will contact the fabric. The cloth guide plate 511 has a smooth surface, which can reduce the friction between the fabric and the fabric, and prevent the fabric from being scratched or excessively worn during movement. At the same time, its unique shape and angle are carefully designed to exert a certain guiding force on the cloth, so that the cloth can be smoothly spread in a predetermined direction and position when entering the sewing area above the needle plate 101. In this way, the cloth guide plate 511 effectively avoids problems such as wrinkles and accumulation of the cloth, and provides a flat and stable cloth foundation for subsequent trimming and seam-seaming operations, thereby improving the precision and quality of sewing and ensuring the beauty and practicality of the finished garment.

[0049] In another preferred embodiment, the right wheel unit 300 further includes a deviation correction mechanism configured on the right wheel 301 and a photoeye 304 configured on the right side of the right wheel 301, and the photoeye 304 transmits the collected signal to the control device, and the control device drives the deviation correction mechanism to correct the small-sized enclosed area of ​​the clothing set on the right wheel 301. This preferred embodiment is intended to solve the position deviation problem that may occur when using the seam-closing device to process the small-sized enclosed area of ​​the clothing, and ensure the accuracy and consistency of the sewing position. The photoeye 304 is configured on the right side of the right wheel 301, and its main function is to monitor the position information of the small-sized enclosed area of ​​the clothing. During the seam-closing process, the photoeye 304 will continuously collect the position signal of the small-sized enclosed area of ​​the clothing. Since the clothing enclosed area performs a rotational motion on the right wheel 301, the photoeye 304 can sense the position change of the area during the rotation process in real time. Such position signal may be information such as reflection, refraction or shielding of the optical signal. The optical eye 304 converts such information into an electrical signal or a digital signal to provide a data basis for subsequent deviation correction operations.

[0050] In another preferred embodiment, the right-turning wheel 301 includes a front wheel 30101 and a rear wheel 30102 fixedly connected to the front wheel, and the deviation correction mechanism is arranged on the rear wheel 30102; the rear wheel 30102 includes a front disc 30103, a front intermediate disc 30104, 5 fan-shaped support blocks 30105, a rear intermediate disc 30106 and a rear disc 30107 fixedly connected in sequence from front to back, and the rear disc 30107 extends backward to form The sleeve 30108 is connected to a worm shaft 30109 driven by the deviation correction motor 303. A worm 30110 is fixed at the inner end of the worm shaft 30109. The worm 30110 is located in a worm accommodating cavity 30111 opened in the middle of the opposite ends of the rear intermediate disk 30106 and the rear end disk 30107. The rear end surface of the rear intermediate disk 30106 and the front end surface of the rear end disk 30107 are evenly opened in the radial direction. The rear intermediate disk 30106 has a worm wheel receiving groove 30112, and a worm wheel 30113 is respectively arranged in each worm wheel receiving groove 30112, and these worm wheels 30113 are respectively engaged with the worm 30110; at the same time, the front end surface of the rear intermediate disk 30106 is provided with a wheel receiving groove 30114 corresponding to each worm wheel receiving groove 30112, and a worm wheel 30113 is respectively arranged in each wheel receiving groove 30114. The right-hand wheel 30115 comprises an intermediate wheel body 301151 meshing with the worm wheel 30113, and the intermediate wheel body 301151 has semicircular groove bodies 301152 on both sides; the front ends of each of the fan-shaped support blocks 30105 are provided with pulley shaft receiving grooves 30116, and a pulley 30117 is rotated between two adjacent fan-shaped support blocks 30105 through the pulley shaft receiving grooves 30116, and each of the pulleys 30117 has two semicircular grooves corresponding to the two semicircular groove bodies 301152, and two endless round belts 30118 are wound around each of the pulleys 30117 and the corresponding each of the pass wheels 30115. The right-hand wheel 301 is composed of a front wheel 30101 and a rear wheel 30102 fixed thereto, and this structural design provides a basis for the installation and operation of the subsequent deviation correction mechanism. The rear wheel 30102 is a relatively complex structure, consisting of a front disc 30103, a front intermediate disc 30104, five fan-shaped support blocks 30105, a rear intermediate disc 30106 and a rear disc 30107, which are fixed in sequence from front to back. These components together constitute the overall frame of the rear wheel 30102, providing support and installation positions for the internal transmission and deviation correction mechanisms. The rear disc 30107 extends backward to form a sleeve 30108, which provides a transfer position for the worm shaft 30109, so that the worm shaft 30109 can rotate stably therein.The worm shaft 30109 is driven by the deviation correction motor 303, and the worm 30110 inside it is located in the worm accommodating cavity 30111 opened in the middle of the opposite ends of the rear intermediate disk 30106 and the rear end disk 30107. Five worm wheel accommodating grooves 30112 are evenly opened in the radial direction on the rear end surface of the rear intermediate disk 30106 and the front end surface of the rear end disk 30107. A worm wheel 30113 is rotated in each worm wheel accommodating groove 30112, and these worm wheels 30113 are respectively engaged with the worm 30110. This worm-worm wheel transmission system can transmit the rotational power of the deviation correction motor 303 to the worm wheel 30113. The worm-worm wheel transmission has a large transmission ratio and self-locking characteristics, can achieve precise angle and speed adjustment, and provides a precise transmission basis for the deviation correction operation. When the deviation correction motor 303 rotates, the worm wheel 30113 is driven to rotate through the worm 30110, providing power and precise transmission control for the subsequent deviation correction action. The front end surface of the rear intermediate disk 30106 is provided with a wheel receiving groove 30114 corresponding to each worm wheel receiving groove 30112, and a wheel 30115 is rotated in each wheel receiving groove 30114. The wheel 30115 includes an intermediate wheel body 301151 meshing with the worm wheel 30113, and the intermediate wheel body 30151 has semicircular groove bodies 301152 on both sides. The front ends of each sector-shaped support block 30105 are provided with pulley shaft receiving grooves 30116, and a pulley 30117 is rotated between two adjacent sector-shaped support blocks 30105 through the pulley shaft receiving grooves 30116. Each pulley 30117 has two semicircular grooves corresponding to the two semicircular groove bodies 301152, and two endless round belts 30118 are wound around each pulley 30117 and the corresponding overwheel 30115. The arrangement of the overwheel 30115, the pulley 30117 and the endless round belt 30118 can realize the transmission and dispersion of power on the one hand, and on the other hand, the position of the small-sized enclosed area of ​​the clothing on the right-turning wheel 301 can be affected by adjusting the tension and position of the endless round belt 30118, thereby realizing the deviation correction function. When the worm wheel 30113 rotates, it will drive the overwheel 30115 to rotate, and then drive the movement of the pulley 30117 and the endless round belt 30118, and finally realize the deviation correction operation of the small-sized enclosed area of ​​the clothing. In summary, the rear wheel 30102 of the right-turning wheel 301 in the preferred embodiment is a complex and ingenious structure. Through the coordinated work of components such as the worm-worm gear transmission, the pulley and the pulley system, the deviation correction mechanism can accurately adjust the position and movement of the endless circular belt 30118, and then perform deviation correction operations on the small-sized enclosed area of ​​the clothing mounted on the right-turning wheel 301, ensuring the accurate position of the clothing during the seam closing process and improving the seam closing quality and product quality.

[0051] In another preferred embodiment, the fan-shaped support block 30105 has an outer circumferential surface with the same curvature as the rear intermediate disk 30106 and the rear end disk 30107; the advantage of such a design is that it ensures that the overall structure of the right-turning wheel 301 has better continuity and consistency. The same curvature enables the right-turning wheel 301 to form a relatively smooth transition circle from the rear intermediate disk 30106 to the rear end disk 30107 and then to the outer surface of the fan-shaped support block 30105 during the rotation process, avoiding the problems of stress concentration and unsmooth movement that may be caused by inconsistent curvature. During the seam-seaming process, when the small-sized enclosed area of ​​the garment rotates on the right-turning wheel 301, this smooth transition can make the cloth move more smoothly on the surface, reduce the stretching or distortion of the cloth caused by the uneven surface of the structure, and help improve the quality and stability of the seam-seaming. The front intermediate disk 30104 extends backward to form an arc-shaped guard plate 30119 extending into the adjacent two endless circular belts 30118 between the adjacent two fan-shaped support blocks 30105. The arc-shaped guard plate 30119 has an outer cylindrical surface with the same curvature as the rear intermediate disk 30106 and the rear end disk 30107. Its main function is to provide certain protection and guidance for the endless circular belt 30118. During operation, the endless circular belt 30118 may be offset or shaken due to centrifugal force or other external forces. The arc-shaped guard plate 30119 can limit the range of motion of the endless circular belt 30118, prevent it from swinging excessively, and ensure the stability of the endless circular belt 30118 during operation. At the same time, the outer cylindrical surface with the same curvature also ensures the coordination with the overall structure of the right rotating wheel 301, avoids additional friction or damage to the small-size enclosed area of ​​the clothing, and makes the seam-seaming operation safer and more stable.

[0052] In another preferred embodiment, the right wheel unit 300 further includes a bone-turning mechanism, which includes a folding drum arranged behind the rear wheel 30102, a folding plate arranged on the frame corresponding to the folding drum, and a plurality of air blowing pipes with air filling and blowing holes blowing toward the small-sized enclosed area of ​​the garment. The folding drum is arranged behind the rear wheel 30102, and plays a basic mechanical guiding role in the bone-turning process. The outer side of the upper end face on one side thereof has a large rounded corner, and the outer side of the upper end face on the other side has a large oblique chamfer, and the front section of the large oblique chamfer gradually extends forward and upward to form a curved slope. The folding plate includes a straight rod portion and a flat plate portion that gradually widens to the left, the straight rod portion extends toward the folding drum, the flat plate portion has a cavity, the air blowing pipe is connected to the cavity, and a plurality of air outlets are arranged on the front end face of the flat plate portion. When the fabric of the small-sized enclosed area of ​​the garment is transported to the folding drum position as the rear wheel rotates, the folding drum contacts the fabric and generates friction by virtue of its own tile shape and rotatable characteristics. This friction will drive the fabric to move on its surface. At the same time, the position and angle design of the hemming roller enable the fabric to start preliminary hemming in a predetermined manner during the movement, preparing for the subsequent hemming forming. The hemming plate corresponds to the hemming roller, and the hemming plate is configured on the frame. The hemming plate has a specific shape and position. When the fabric approaches the hemming plate driven by the hemming roller, the hemming plate will exert further constraints and guidance on the fabric. It can accurately bend the edge of the fabric initially folded by the hemming roller to the appropriate angle and position according to the design requirements, so that the edge shape of the fabric is more regular, forming a hemming shape that meets the process standards, and providing a precise hemming foundation for the subsequent sewing process. Multiple air blowing tubes are distributed in appropriate positions, and all have inflation and blowing holes that blow to the small-sized enclosed area of ​​the garment. During the hemming process, the air blowing tube blows air to the fabric through the inflation and blowing holes. On the one hand, the airflow can assist in shaping the fabric that is being folded, especially for some light, soft fabrics. The airflow can help the fabric better fit the shape of the folding roller and the folding plate, making the folding smoother and more natural. On the other hand, the airflow can also promptly clean up the debris and dust on the surface of the fabric, keep the fabric clean, and prevent these debris from affecting the quality of folding and subsequent sewing, ensuring the smooth progress of the entire inverted bone process, thereby improving the sewing quality of the small-size enclosed area of ​​the garment.

[0053] In another preferred embodiment, the left wheel unit 200 includes a linear module 202 fixed on the frame and having a stroke in the left and right directions, the sliding portion of the linear module 202 is fixedly connected to the left wheel seat 203, the left wheel motor 204 is fixed on the left wheel seat 203, the left wheel seat 203 extends to the right to form a cantilever 205, the free end of the cantilever 205 is rotated to the left wheel 201, and the left wheel 201 is connected to the motor shaft of the left wheel motor 204 through a synchronous belt. This design provides the left wheel 201 with the ability to move left and right. When the small size enclosed area of ​​the clothing of different sizes and shapes is sealed, the position of the left wheel seat 203 is adjusted by the linear module 202, and the left and right positions of the left wheel 201 can be flexibly changed, so that the device can better adapt to different clothing parts, such as collars or cuffs of different sizes, thereby improving the versatility and adaptability of the entire sealing device. The cantilever 205 gradually tapers from left to right, and the left-hand wheel 201 is in the shape of a round rod. Such a shape design helps to optimize the spatial layout and reduce the occupation of the operating space. At the same time, under the premise of ensuring the structural strength, the overall weight is reduced, and the operational flexibility of the left-hand wheel 201 is avoided to be affected by the cantilever structure being too heavy or too large. The left-hand wheel motor 204 provides rotational power for the left-hand wheel 201, and transmits the power to the left-hand wheel 201 through the synchronous belt, so that the left-hand wheel 201 can rotate to tighten and drive the small-sized enclosed area of ​​the clothing to perform a rotational movement. The left-hand wheel 201 is in the shape of a round rod, and its shape design can better contact with the small-sized enclosed area of ​​the clothing, evenly tighten the cloth, and facilitate the movement and rotation of the cloth on its surface.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A T-shirt cuff trimming device with a cutter, comprising a sewing machine (100) fixedly mounted on a machine frame, a left wheel unit (200), a right wheel unit (300) and an enclosed area trimming unit (500) located between the left wheel unit (200) and the right wheel unit (300) respectively arranged on the left and right sides of the sewing machine (100), characterized in that: The enclosed area trimming unit (500) comprises a trimming motor (501) on the sewing machine (100) placed above the needle plate (101), a shaft sleeve (502) fixedly connected to the motor shaft of the trimming motor (501), the shaft sleeve (502) slidingly cooperates with a slider (503) in a radial direction, the slider (503) is fixedly connected to an axle pin (504), a top screw abutting against the slider (503) is screwed on the shaft sleeve (502) to adjust the eccentricity of the axle pin (504) and the motor shaft of the trimming motor (501), and the axle pin (504) is connected to one end of a connecting rod (505); A fixed knife (506) is fixedly arranged on the right side of the needle plate (101), which is embedded in the needle plate (101) to the left, close to the presser foot, and has a blade flush with the needle plate (101); the fixed knife (506) and a hook-shaped movable knife (507) form a shearing pair; the driving end of the movable knife (507) is fixedly connected to a trimming drive shaft (508) whose axial direction is the front-to-back direction; the trimming drive shaft (508) is rotatably arranged on the body of the sewing machine (100) on the right side of the needle plate (101); the trimming drive shaft (508) is fixedly connected to one end of a rocker rod (509), and the other end of the rocker rod (509) is rotatably connected to the other end of the connecting rod (505).

2. The T-shirt cuff trimming device with a cutter according to claim 1, characterized in that: The left wheel unit (200) comprises a left wheel (201), and the right wheel unit (300) comprises a right wheel (301). The upper rims of the left wheel (201) and the right wheel (301) are substantially flush with the plane of the needle plate (101) of the sewing machine (100). After the small-sized enclosed area of ​​the garment is put on the left wheel (201) and the right wheel (301), it is supported by the left wheel (201) that can be displaced left and right, and is The left wheel (201) of the right wheel (301) and / or the left wheel (201) drives the left wheel (201) to perform a downward rotational motion, the diameter of the left wheel (201) is within 25 mm, the diameter of the right wheel (301) is within 45 mm, the left wheel (201) can abut against the needle plate (101) of the sewing machine (100), and the right wheel (301) is within 70 mm from the edge of the needle plate (101) of the sewing machine (100).

3. The T-shirt cuff trimming device with a cutter according to claim 1, characterized in that: It also comprises a clothing supporting unit (400) arranged on a frame below the needle plate (101) of the sewing machine (100), wherein the clothing supporting unit (400) can enable the rest of the clothing to rotate along with the rotation of the small-sized enclosed area without falling.

4. The T-shirt cuff trimming device with a cutter according to claim 3, characterized in that: The clothing supporting unit (400) comprises a receiving basin (401), a fixed plate (402) fixedly connected to a frame below a needle plate (101) of the sewing machine (100), a follow-up motor (403) fixedly arranged below the fixed plate (402), a follow-up shaft (404) rotatably arranged above the fixed plate (402) via a bearing, a motor shaft of the follow-up motor (403) fixedly connected to the follow-up shaft (404), and the follow-up motor (403) and the right-turning wheel motor (302) driving the right-turning wheel (301) rotate synchronously so that the remaining part of the clothing in the receiving basin (401) can rotate clockwise or counterclockwise along with the rotation of the small-sized enclosed area.

5. The T-shirt cuff trimming device with a cutter according to claim 3, characterized in that: A trimming suction pipe (510) is fixedly arranged on the right side of the needle plate (101) of the sewing machine (100), and the suction port of the trimming suction pipe (510) is closely attached to the movable knife (507) and covers the movement range of the movable knife (507); a cloth guide plate (511) is arranged on the machine body on the left side of the trimming suction pipe (510) and below the needle plate (101) to assist in unfolding the cloth.

6. The T-shirt cuff trimming device with a cutter according to claim 1, characterized in that: The right wheel unit (300) further comprises a deviation correction mechanism arranged on the right rotating wheel (301) and a photoeye (304) arranged on the right side of the right rotating wheel (301); the photoeye (304) transmits a collected signal to a control device, and the control device drives the deviation correction mechanism to correct the deviation of a small-sized enclosed area of ​​a garment mounted on the right rotating wheel (301).

7. The T-shirt cuff trimming device with a cutter according to claim 6, characterized in that: The right-turning wheel (301) comprises a front wheel (30101) and a rear wheel (30102) fixedly connected to the front wheel, and the deviation correction mechanism is arranged on the rear wheel (30102); the rear wheel (30102) comprises a front disc (30103), a front intermediate disc (30104), five fan-shaped support blocks (30105), a rear intermediate disc (30106) and a rear disc (30107) fixedly connected in sequence from front to rear, and the rear disc (30107) extends backward to form a sleeve (301 08), a worm shaft (30109) driven by a deviation correction motor (303) is connected to the sleeve (30108), a worm (30110) is fixedly arranged at the inner end of the worm shaft (30109), and the worm (30110) is located in a worm accommodating cavity (30111) opened in the middle of the opposite ends of the rear intermediate disk (30106) and the rear end disk (30107), and the rear end surface of the rear intermediate disk (30106) and the front end surface of the rear end disk (30107) are evenly opened in the radial direction. The rear intermediate disk (30106) is provided with a worm wheel receiving groove (30112), and a worm wheel (30113) is respectively arranged in each worm wheel receiving groove (30112), and the worm wheels (30113) are respectively meshed with the worm (30110); at the same time, a wheel receiving groove (30114) is formed on the front surface of the rear intermediate disk (30106) corresponding to each worm wheel receiving groove (30112), and a worm wheel (30113) is respectively arranged in each worm wheel receiving groove (30114). A passing wheel (30115) is provided, wherein the passing wheel (30115) comprises an intermediate wheel body (301151) meshing with the worm wheel (30113), and the intermediate wheel body (301151) has semicircular groove bodies (301152) on both sides; a pulley shaft accommodating groove (30116) is respectively provided on both sides of the front end of each of the fan-shaped support blocks (30105), and a pulley (30117) is rotated between two adjacent fan-shaped support blocks (30105) through the pulley shaft accommodating groove (30116), and each of the pulleys (30117) has two semicircular grooves corresponding to the two semicircular groove bodies (301152), and two endless round belts (30118) are wound around each of the pulleys (30117) and the corresponding passing wheels (30115).

8. The T-shirt cuff trimming device with a cutter according to claim 6, characterized in that: The fan-shaped support block (30105) has an outer circular surface with the same curvature as the rear intermediate disk (30106) and the rear end disk (30107); the front intermediate disk (30104) extends backward to form an arc-shaped guard plate (30119) extending between two adjacent endless circular belts (30118) between two adjacent fan-shaped support blocks (30105), and the arc-shaped guard plate (30119) has an outer circular surface with the same curvature as the rear intermediate disk (30106) and the rear end disk (30107).

9. The T-shirt cuff trimming device with a cutter according to claim 6, characterized in that: The right wheel unit (300) also includes a hemming mechanism, which includes a folding roller arranged behind the rear wheel (30102), a folding plate arranged on a frame corresponding to the folding roller, and a plurality of blowing tubes having inflation and blowing holes for blowing toward a small-sized enclosed area of ​​the garment.

10. The T-shirt cuff trimming device with a cutter according to claim 1, characterized in that: The left wheel unit (200) comprises a linear module (202) fixed on a frame and having a travel direction in the left and right directions; a sliding portion of the linear module (202) is fixedly connected to a left-turn wheel seat (203); a left-turn wheel motor (204) is fixedly arranged on the left-turn wheel seat (203); the left-turn wheel seat (203) extends rightward to form a cantilever (205); the left-turn wheel (201) is rotated at the free end of the cantilever (205); the left-turn wheel (201) is connected to the motor shaft of the left-turn wheel motor (204) via a synchronous belt; the cantilever (205) gradually tapers from left to right; and the left-turn wheel (201) is in the shape of a round rod.

Images