T-shirt cuff covering equipment with cutter for trimming

Abstract

The utility model relates to auxiliary equipment for garment production, in particular to T-shirt cuff covering equipment with a cutter for trimming, which comprises a right rotating wheel, and the right rotating wheel comprises a front wheel and a rear wheel fixedly connected with the front wheel. And a trimming motor of the trimming mechanism is arranged on the sewing machine above the needle plate. Compared with the prior art, the trimming mechanism has the advantages that the trimming motor of the trimming mechanism is arranged on the sewing machine above the needle plate, so that the space is obviously saved, the problem of space limitation is solved, the equipment can be suitable for sewing small-size enclosed areas of garments with small-size cuffs and the like, and the flexibility and the applicability of the equipment in operation in the small-size areas are improved.

Description

Technical Field

[0001] This utility model relates to auxiliary equipment for garment production, specifically a T-shirt cuff trimming device with a cutting blade. Background Technology

[0002] In the garment manufacturing industry, precision and efficiency in the sewing process have always been key objectives pursued by the industry. While traditional garment sewing equipment can basically meet production needs when processing standard-sized fabrics, the challenges of sewing small, enclosed areas such as necklines and cuffs are becoming increasingly prominent as garment styles become more diverse and consumers' demands for quality continue to rise.

[0003] On the one hand, most existing trimming motors are bottom-mounted, which takes up a lot of space. When sewing small cuffs, the limited space makes it difficult to perform the function, which seriously affects the accuracy and flexibility of sewing and cannot meet the processing needs of small-sized enclosed areas of garments.

[0004] On the other hand, the applicant previously disclosed a dual worm gear guiding cloth-dragging device under publication number CN 215517902 U. Because the drive pulley of the shaft near the roller is located inside the steering pulley, this layout limits the miniaturization of the roller diameter from both a mechanical and spatial perspective. When dealing with sewing operations in small spaces such as necklines and cuffs, the large equipment size and structural dimensions also limit its effectiveness, making it impossible to meet the processing requirements of small enclosed areas. Utility Model Content

[0005] To overcome the defects or one of the defects of the prior art, this utility model discloses a T-shirt cuff trimming device and trimming mechanism with a cutting blade, including a right rotating wheel. The right rotating wheel includes a front wheel and a rear wheel fixedly connected to the front wheel. Unlike the prior art, the correction mechanism is arranged on the rear wheel, and the trimming motor of the trimming mechanism is placed on the sewing machine above the needle plate. A photoelectric sensor is arranged on the machine body on the right side of the right rotating wheel. The photoelectric sensor transmits the collected signals to the control device, and the control device drives the correction mechanism to correct the small-sized encircling area of ​​the garment fitted on the right rotating wheel.

[0006] Furthermore, the trimming mechanism also includes a bushing fixed to the motor shaft of the trimming motor. The bushing slides radially with a slider, which is fixedly connected to a pin. A set screw is screwed onto the bushing to abut against the slider to adjust the eccentricity between the pin and the motor shaft of the trimming motor. The pin is connected to one end of a connecting rod. A fixed blade is fixedly installed on the right side of the needle plate of the sewing machine, embedded to the left in the needle plate, near the presser foot, with its blade flush with the needle plate. The fixed blade and a hook-shaped movable blade form a shearing pair. The driving end of the movable blade is fixedly connected to a trimming drive shaft with an axial direction of front and back. The trimming drive shaft is mounted on the machine body on the right side of the needle plate of the sewing machine. One end of the trimming drive shaft is fixedly connected to a swing arm, and the other end of the swing arm is connected to the other end of the connecting rod.

[0007] Furthermore, a trimming suction pipe is fixed to 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 fabric guide plate is arranged on the machine body to the left of the trimming suction pipe and below the needle plate to assist in unfolding the fabric.

[0008] Furthermore, the rear wheel includes a front disc, a front intermediate disc, five sector-shaped support blocks, a rear intermediate disc, and a rear disc, which are fixedly connected from front to back. The rear disc extends rearward to form a sleeve, and a worm shaft driven by a correction motor is rotated inside the sleeve. A worm is fixed at the inner end of the worm shaft. The worm is located in a worm receiving cavity opened at the middle of the opposite ends of the rear intermediate disc and the rear disc. Five worm wheel receiving grooves are evenly opened radially on the rear end face of the rear intermediate disc and the front end face of the rear disc, and a worm wheel receiving groove is rotated in each worm wheel receiving groove. Each of the five worm gears meshes with a worm. Simultaneously, the front end of the rear interplate has a passing wheel receiving groove corresponding to each worm gear receiving groove, and a passing wheel is installed in each passing wheel receiving groove. Each passing wheel includes an intermediate wheel body meshing with the worm gear, with semi-circular annular grooves on both sides of the intermediate wheel body. Each of the sector-shaped support blocks has a pulley shaft receiving groove on both sides of its front end. Adjacent sector-shaped support blocks are connected by pulley shaft receiving grooves. Each pulley has two semi-circular annular grooves corresponding to the two semi-circular annular grooves. Two endless circular belts are wound around each pulley and each corresponding passing wheel. These endless circular belts protrude from the circumferential surfaces of the front interplate, the five sector-shaped support blocks, and the rear interplate.

[0009] Furthermore, the sector-shaped support block has an outer circular surface with the same curvature as the rear interplate and the rear endplate.

[0010] Furthermore, the front disc extends rearward to form an arc-shaped guard plate that extends 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 disc and the rear disc.

[0011] Furthermore, three first screws pass through the front disc from back to front and are screwed into the front wheel, thus fixing the front wheel to the front disc; five second screws pass through the front disc from front to back and are screwed into the front interplate, thus fixing the front disc to the front interplate; five third screws pass through the five fan-shaped support blocks from front to back, then through the rear interplate, and are screwed into the rear disc, thus fixing the five fan-shaped support blocks, the rear interplate, and the rear disc together. At the same time, the front and rear ends of each fan-shaped support block are respectively pinned to the front interplate and the rear interplate for positioning; one fourth screw passes through the center of the front interplate from front to back and is screwed into the center of the rear interplate, thus fixing the front interplate, the five fan-shaped support blocks, and the rear interplate together.

[0012] Furthermore, the tension of the endless circular belt is adjusted by simultaneously or separately placing shims of different thicknesses between the five fan-shaped support blocks and the rear disc.

[0013] Furthermore, bearings are respectively installed at the front end of the rear end plate and the rear end of the sleeve to rotatably support the worm shaft.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] 1. Solving the space limitation problem

[0016] Optimized trimming motor position: In existing technologies, trimming motors are mostly bottom-mounted, occupying a lot of space, which makes it difficult to operate effectively when sewing small cuffs due to space constraints. This utility model places the trimming motor of the trimming mechanism on the sewing machine above the needle plate, significantly saving space and overcoming the space limitation problem. This allows the equipment to be used for sewing small-sized, confined areas of garments, such as small cuffs, improving the flexibility and applicability of the equipment in small-sized areas.

[0017] 2. Better suited for small enclosed areas

[0018] Targeted correction mechanism design: Existing dual-worm gear correction devices are limited by their structural layout and roller diameter, making them ineffective for sewing operations in small spaces such as necklines and cuffs. This invention features a specially designed correction mechanism suitable for small, enclosed areas of garments, mounted on the rear wheel of the right-hand rotating roller. This design better meets the positional accuracy requirements during sewing in small, enclosed areas, effectively solving the positional deviation problem and improving sewing precision and product quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the right-hand rotating wheel of this utility model.

[0020] Figure 2 yes Figure 1 A cross-sectional structural diagram.

[0021] Figure 3 This is a schematic diagram showing the components of the right-hand rotating wheel of this utility model separated.

[0022] Figure 4 yes Figure 3 A magnified view of a section at point B.

[0023] Figure 5 yes Figure 3 A magnified view of a section at point C.

[0024] Figure 6 This is a schematic diagram of the component separation from another perspective of the right-hand wheel of this utility model.

[0025] Figure 7 yes Figure 6 A magnified view of a section at point D.

[0026] Figure 8 yes Figure 6 A magnified view of a section at point E in the middle.

[0027] Figure 9 This is a schematic diagram of the worm gear and guide wheel of this utility model.

[0028] Figure 10 This is a schematic diagram showing the position of the trimming mechanism of this utility model on a sewing machine.

[0029] Figure 11 yes Figure 10 A magnified view of a portion of point A in the middle. Detailed Implementation

[0030] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] As shown in Figure 1-11, a T-shirt cuff sewing machine with a cutting edge trimming tool includes a right-hand wheel 301, which consists of a front wheel 30101 and a rear wheel 30102 fixed to the front wheel. A correction mechanism is mounted on the rear wheel 30102. Its purpose is to correct the fabric's position when it shifts while moving on the right-hand wheel 301 during the sewing of small-sized areas of the garment, based on a preset program or sensor feedback. This applies force to the fabric to adjust it back to the correct position, ensuring sewing accuracy in small-sized areas such as the neckline and cuffs. The trimming motor 501 of the trimming mechanism is mounted on the sewing machine 100 above the needle plate 101. This layout avoids the large space occupation of traditional bottom-mounted trimming motors, allowing the machine to adapt to the processing of small-sized areas such as small cuffs. A bushing 502 is fixedly connected to the motor shaft of the trimming motor 501. When the trimming motor 501 rotates, the bushing 502 rotates synchronously. The bushing 502 slides radially with a slider 503, which is fixedly connected to a pin 504. A set screw is screwed onto the bushing 502 to abut against the slider 503. By adjusting the set screw, the eccentricity between the pin 504 and the motor shaft of the trimming motor 501 can be adjusted, thereby changing the movement trajectory and amplitude of the subsequent connecting rod 505 to adapt to fabrics of different thicknesses and materials, as well as different trimming process requirements. The pin 504 is connected to one end of the connecting rod 505. The pin 504 moves in a circular motion with the bushing 502 driven by the trimming motor 501, thereby driving the connecting rod 505 to transmit power. A fixed blade 506 is fixedly installed on the right side of the needle plate 101 of the sewing machine 100, embedded to the left into the needle plate 101, near the presser foot, with its blade flush with the needle plate 101. This installation method cleverly utilizes space, reduces interference with the fabric operation area, and can better cooperate with the movable blade 507 to precisely trim the fabric edge. The fixed blade 506 and the hook-shaped movable blade 507 form a shearing pair. The drive end of the movable blade 507 is fixed to the trimming drive shaft 508, which is axially in the front-back direction. The trimming drive shaft 508 is rotatably mounted on the machine body on the right side of the needle plate 101 of the sewing machine 100. One end of the trimming drive shaft 508 is fixed to the swing arm 509, and the other end of the swing arm 509 is rotatably connected to the other end of the connecting rod 505. When the connecting rod 505 moves, it drives the swing rod 509 to swing, causing the trimming drive shaft 508 to rotate. Ultimately, this drives the movable blade 507 to perform a shearing motion relative to the fixed blade 506, trimming the edges of the small-sized enclosed area of ​​the garment. A photoelectric sensor 304 is installed on the right side of the machine body of the right rotating wheel 301. The photoelectric sensor 304 can monitor the position of the small-sized enclosed area of ​​the garment on the right rotating wheel 301 in real time by emitting and receiving reflected light.The photodetector 304 transmits the signals reflecting the fabric's position to the control device. The control device analyzes and processes the signals according to a preset program and algorithm to determine if there is a positional deviation in the fabric. If a deviation is found, the control device drives the correction mechanism to adjust the fabric's position, ensuring that the fabric is in the correct position for sewing and improving sewing accuracy.

[0034] In another preferred embodiment, a trimming suction pipe 510 is fixed to the right side of the needle plate 101 of the sewing machine 100, with its suction port closely attached to the movable blade 507 and covering the range of motion of the movable blade 507. When the movable blade 507 trims the edge of the small-sized enclosed area of ​​the garment, fabric debris is generated. The trimming suction pipe 510 can promptly suck away these debris, preventing debris accumulation from interfering with sewing and trimming operations, ensuring normal operation of the equipment and sewing quality. A guide plate 511 is configured on the left side of the trimming suction pipe 510, below the needle plate 101, on the machine body. Its function is to assist in unfolding the fabric. Since the fabric in the small-sized enclosed area of ​​the garment is prone to wrinkles and twists during transportation and processing, the guide plate 511, with its smooth surface and reasonable shape and angle, applies guiding force to the fabric, allowing the fabric to enter the sewing area smoothly, providing a good foundation for subsequent operations.

[0035] In another preferred embodiment, the rear wheel 30102 is formed by sequentially fixing a front disc 30103, a front interplate 30104, five sector-shaped support blocks 30105, a rear interplate 30106, and a rear disc 30107 from front to back. The rear disc 30107 extends rearward to form a sleeve 30108, and a worm shaft 30109 driven by a correction motor is connected inside the sleeve 30108. The correction motor provides power to rotate the worm shaft 30109, and the worm 30110 fixed at the inner end of the worm shaft 30109 is located in the worm receiving cavity 30111 at the middle of the opposite ends of the rear interplate 30106 and the rear disc 30107. Five worm gear receiving grooves 30112 are evenly provided radially on the rear end face of the rear disc 30106 and the front end face of the rear disc 30107. One worm gear 30113 is mounted in each groove, and these worm gears 30113 mesh with the worm 30110. When the worm shaft 30109 drives the worm 30110 to rotate, it drives the worm gears 30113 to rotate. Corresponding to the worm gear receiving grooves 30112, the front end face of the rear disc 30106 has a passing wheel receiving groove 30114. One passing wheel 30115 is mounted in each passing wheel receiving groove 30114. The intermediate wheel body 301151 of the passing wheel 30115 meshes with the worm gear 30113, and the two sides of the intermediate wheel body 301151 are semi-circular annular grooves 301152. Each sector-shaped support block 30105 has pulley shaft receiving grooves 30116 on both sides of its front end. A pulley 30117 is mounted between two adjacent sector-shaped support blocks 30105 via these grooves. Each pulley 30117 has two semi-circular grooves corresponding to the semi-circular groove 301152. Two endless circular belts 30118 are wound around the pulleys 30117 and 30115, protruding beyond the circumferential surfaces of the front disc 30104, sector-shaped support blocks 30105, and rear disc 30106. Thus, the rotation of the worm gear 30113 drives the 30115 to rotate, which in turn drives the pulleys 30117 and the endless circular belts 30118. The endless circular belts 30118 contact the fabric, achieving adjustment and correction of the fabric's position.

[0036] The fan-shaped support block 30105 has an outer circular surface with the same curvature as the rear interlocking disc 30106 and the rear end disc 30107. This design ensures the smoothness and continuity of the circumferential surface of the rear wheel 30102, making the movement of the small-sized encircling area of ​​the garment on the rear wheel 30102 smoother, reducing friction and jamming between the fabric and the rear wheel surface, and preventing wrinkles or damage to the fabric due to uneven surfaces, which helps to improve sewing quality and efficiency.

[0037] In another preferred embodiment, the front disc 30104 extends rearward to form an arc-shaped guard plate 30119. The arc-shaped guard plate 30119 extends between two adjacent endless circular belts 30118 between two adjacent fan-shaped support blocks 30105, and has an outer circular surface with the same curvature as the rear disc 30106 and the rear disc 30107. The arc-shaped guard plate 30119 can protect and guide the endless circular belts 30118, preventing them from shifting, shaking, or interfering with other components during operation, ensuring the stable operation of the endless circular belts 30118, and thus ensuring the normal progress of correction and sewing operations.

[0038] In another preferred embodiment, three first screws 30120 pass through the front disc 30103 from back to front and are screwed onto the front wheel 30101, firmly fixing the front wheel 30101 and the front disc 30103 to ensure that there is no relative displacement between them during operation, providing a foundation for the overall stability of the right wheel 301. Five second screws 30121 pass through the front disc 30103 from front to back and are screwed onto the front intermediary disc 30104, making the front disc 30103 and the front intermediary disc 30104 tightly connected, providing support for the installation of subsequent components and stable operation. Five third screws 30122 pass through the five sector-shaped support blocks 30105 and the rear disc 30106 from front to back, and are then screwed to the rear disc 30107. Simultaneously, each sector-shaped support block 30105 is positioned at both its front and rear ends by pins 30123 connected to the front disc 30104 and the rear disc 30106, respectively. This connection and positioning method ensures that the sector-shaped support blocks 30105, the rear disc 30106, and the rear disc 30107 form a stable whole, guaranteeing accurate relative positions between components and improving the overall strength and stability of the rear wheel 30102. A fourth screw 30124 passes through the center of the front disc 30104 from front to back and is then screwed to the center of the rear disc 30106, further strengthening the connection between the front disc 30104, the sector-shaped support blocks 30105, and the rear disc 30106, ensuring their stable and coordinated operation during operation.

[0039] In another preferred embodiment, the tension of the endless circular belt 30118 is adjusted by simultaneously or separately placing shims of different thicknesses between the five sector-shaped support blocks 30105 and the rear disc 30106. Appropriate tension is crucial to the transmission efficiency and correction effect of the endless circular belt 30118. An excessively loose endless circular belt 30118 may slip, resulting in insufficient power transmission and affecting correction accuracy; an excessively tight belt will increase wear between components and energy loss. By adjusting the shim thickness, the tension of the endless circular belt 30118 can be flexibly adjusted according to actual working requirements, ensuring the reliability of transmission and the accuracy of correction operation.

[0040] In another preferred embodiment, bearings are respectively installed at the front end of the rear end plate 30107 and the rear end of the sleeve 30108 to rotatably support the worm shaft 30109. The bearings reduce the frictional force during the rotation of the worm shaft 30109, making its rotation smoother, reducing energy loss and component wear, and improving transmission efficiency. Simultaneously, the bearings also ensure the stability and reliability of the worm shaft 30109 during long-term operation, providing a guarantee for the stable operation of the entire alignment mechanism.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A T-shirt cuffing device with a cutting knife trimming edge, comprising a right rotating wheel (301), the right rotating wheel (301) comprising a front wheel (30101) and a rear wheel (30102) fixed with the front wheel, characterized in that, The deviation rectifying mechanism is arranged on the rear wheel (30102), the trimming motor (501) of the trimming mechanism is arranged above the needle plate (101) of the sewing machine (100); the light eye (304) is arranged on the right side of the body of the right rotating wheel (301), the light eye (304) transmits the collected signal to the control device, and the control device drives the deviation rectifying mechanism to rectify the small size of the clothing surrounding area arranged on the right rotating wheel (301).

2. A T-shirt sleeve cuff apparatus with a trimmer according to claim 1, wherein, The trimming mechanism further comprises a shaft sleeve (502) fixed on the motor shaft of the trimming motor (501), the shaft sleeve (502) is slidably connected with a sliding block (503) in the radial direction, the sliding block (503) is fixedly connected with a shaft pin (504), a top screw abutting against the sliding block (503) is screwed on the shaft sleeve (502) to adjust the eccentricity of the shaft pin (504) and the motor shaft of the trimming motor (501), and one end of the shaft pin (504) is connected with one end of a connecting rod (505); a fixed knife (506) is fixedly arranged on the right side of the needle plate (101) of the sewing machine (100), the fixed knife (506) is embedded into the needle plate (101) to the left, is close to the presser foot, and the blade part is flush with the needle plate (101), the fixed knife (506) and the hook-shaped movable knife (507) form a shearing pair, the driving end of the movable knife (507) is fixedly connected with the trimming driving shaft (508) which is axially arranged in the front-back direction, the trimming driving shaft (508) is rotatably arranged on the right side of the body of the needle plate (101) of the sewing machine (100), one end of the trimming driving shaft (508) is fixedly connected with one end of a swing rod (509), and the other end of the swing rod (509) is rotatably connected with the other end of the connecting rod (505).

3. A T-shirt sleeve cuff apparatus with a trimmer finishing according to claim 2, wherein, A trimming air suction pipe (510) is fixedly arranged on the right side of the needle plate (101) of the sewing machine (100), the air suction port of the trimming air 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 air suction pipe (510) and below the needle plate (101) of the body to assist in unfolding the cloth.

4. A T-shirt cuff device with a trimmer according to claim 1, wherein, The rear wheel (30102) comprises a front end disc (30103), a front intermediate disc (30104), five fan-shaped support blocks (30105), a rear intermediate disc (30106) and a rear end disc (30107) connected in sequence from front to back, the rear end disc (30107) extends rearward to form a sleeve (30108), the sleeve (30108) is connected to a worm shaft (30109) driven by a correction motor, the inner end of the worm shaft (30109) is fixedly connected to a worm (30110), the worm (30110) is located in a worm accommodating cavity (30111) opened in the middle of the opposite ends of the rear intermediate disc (30106) and the rear end disc (30107), the rear end face of the rear intermediate disc (30106) and the front end face of the rear end disc (30107) are uniformly provided with five worm gear accommodating grooves (30112) in the radial direction, and one worm gear (30113) is respectively arranged in each worm gear accommodating groove (30112), the worm gears (30113) are respectively engaged with the worm (30110); meanwhile, the front end face of the rear intermediate disc (30106) is provided with a gear accommodating groove (30114) corresponding to each worm gear accommodating groove (30112), and one gear (30115) is arranged in each gear accommodating groove (30114), the gear (30115) comprises a middle gear body (301151) engaged with the worm gear (30113), and semicircular groove bodies (301152) are arranged on both sides of the middle gear body (301151); the front end of each fan-shaped support block (30105) is provided with a belt shaft accommodating groove (30116) on both sides, a belt wheel (30117) is arranged in the belt shaft accommodating groove (30116) between two adjacent fan-shaped support blocks (30105), each belt wheel (30117) has two semicircular grooves corresponding to the two semicircular groove bodies (301152), and two endless circular belts (30118) are wound on each gear (30115) corresponding to each belt wheel (30117), the endless circular belts (30118) protrude from the circumferential surface of the front intermediate disc (30104), the five fan-shaped support blocks (30105) and the rear intermediate disc (30106).

5. A T-shirt sleeve cuff apparatus with a trimmer finishing according to claim 4, wherein, The fan-shaped support blocks (30105) have an outer circular surface with the same curvature as the rear intermediate disc (30106) and the rear end disc (30107).

6. A T-shirt cuff device with a trimmer according to claim 4, wherein, The front intermediate disc (30104) extends rearward to form an arc-shaped guard plate (30119) extending into the space 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 disc (30106) and the rear end disc (30107).

7. A T-shirt sleeve cuff apparatus with a trimmer finishing according to claim 4, wherein, 3 first screws (30120) pass through the front end disc (30103) from back to front and are screwed with the front wheel (30101) to fix the front wheel (30101) with the front end disc (30103); 5 second screws (30121) pass through the front end disc (30103) from front to back and are screwed with the front intermediate disc (30104) to fix the front end disc (30103) with the front intermediate disc (30104); 5 third screws (30122) pass through the 5 fan-shaped supporting blocks (30105) from front to back and then pass through the rear intermediate disc (30106) and are screwed with the rear end disc (30107) to fix the 5 fan-shaped supporting blocks (30105), the rear intermediate disc (30106) and the rear end disc (30107) together, and the front and back ends of each fan-shaped supporting block (30105) are respectively pinned and positioned with the front intermediate disc (30104) and the rear intermediate disc (30106) through round pins (30123); 1 fourth screw (30124) passes through the center of the front intermediate disc (30104) from front to back and is screwed with the center of the rear intermediate disc (30106) to fix the front intermediate disc (30104), the 5 fan-shaped supporting blocks (30105) and the rear intermediate disc (30106) together.

8. A T-shirt cuff device with a trimmer according to claim 4, wherein, The tightness of the endless belt (30118) can be adjusted by placing different thickness of spacers between the 5 fan-shaped supporting blocks (30105) and the rear intermediate disc (30106) simultaneously or respectively.

9. A T-shirt cuff device with a trimmer according to claim 4, wherein, The front end of the rear end disc (30107) and the rear end of the sleeve (30108) are respectively installed with bearings to rotate and support the worm shaft (30109).

Images