Ultrasonic belt cutting machine for underwear shoulder belt processing

By designing an ultrasonic tape cutting machine for processing bra shoulder straps, the problem of dimensional instability caused by supplier stretching was solved by utilizing a material loosening mechanism and a crossbar mechanism. This achieved efficient and automated cutting, improved cutting accuracy and production efficiency, and reduced costs.

CN224133446UActive Publication Date: 2026-04-17SHENZHEN YISELLE GARMENTS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN YISELLE GARMENTS
Filing Date
2025-04-17
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing ultrasonic tape cutting equipment suffers from dimensional instability due to stretching after packaging by the supplier, resulting in shrinkage after cutting and affecting product processing accuracy and quality.

Method used

An ultrasonic tape cutting machine for processing bra shoulder straps was designed, comprising a material loosening mechanism, a tape cutting machine, an arc frame, a belt and a crossbar mechanism. The material loosening mechanism pre-processes the raw materials, and the crossbar mechanism clamps and adjusts the position of the shoulder straps. Combined with an automated drive system, automated cutting and positioning are achieved, reducing manual intervention.

Benefits of technology

It improved cutting accuracy, reduced scrap rate and labor costs, reduced equipment adjustment and downtime maintenance time, improved production efficiency and equipment adaptability, and reduced procurement costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an ultrasonic belt cutting machine for processing underwear shoulder belts, and relates to the technical field of ultrasonic belt cutting machines. The belt cutting device comprises a belt cutting machine, one side of the top of the belt cutting machine is fixedly connected with an arc-shaped frame, the outer side of the arc-shaped frame is sleeved with a belt, the belt is provided with a transverse rod mechanism, the transverse rod mechanism comprises a mounting block, and the top of the mounting block is slidably connected with a first sliding rod; according to the shoulder strap pre-loosening device, the material loosening mechanism is arranged, a part of shoulder straps are unwound through the unwinding machine by means of the material loosening mechanism, the length of the shoulder straps in the cavity is naturally recovered, and therefore the problem that the size of the shoulder straps is unstable due to stretching is solved; the shoulder strap can be kept in a relatively stable size state during cutting, retraction after cutting is avoided, and then the cutting precision is improved.
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Description

Technical Field

[0001] This utility model relates to the field of ultrasonic tape cutting machine technology, specifically an ultrasonic tape cutting machine for processing bra shoulder straps. Background Technology

[0002] With the continuous development of science and technology, cutting technology includes not only traditional shearing equipment but also ultrasonic tape cutting machines. Ultrasonic tape cutting machines combine ultrasonic welding technology with traditional shearing. When the ultrasonic generator is working, ultrasonic energy is transmitted to the bottom mold of the ultrasonic cutter through the ultrasonic transducer. The cutter and the bottom mold generate intense vibration and friction, thereby achieving the effect of shearing and welding. This makes the sheared products more beautiful, stronger, and more efficient and faster in production.

[0003] Existing ultrasonic tape cutting equipment requires raw materials to be prepared in advance before cutting tape. Currently, the packaging by suppliers results in unstable dimensions due to stretching, and shrinkage occurs after cutting, affecting the processing accuracy and quality of the product. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an ultrasonic tape cutting machine for processing bra straps, so as to solve the technical problems of unstable size caused by user stretching, shrinkage after cutting, and affecting the processing accuracy and quality of products.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ultrasonic tape cutting machine for processing bra shoulder straps, comprising a tape cutting machine, an arc-shaped frame fixedly connected to one side of the top of the tape cutting machine, a belt sleeved on the outer side of the arc-shaped frame, a crossbar mechanism provided on the belt, the crossbar mechanism comprising a mounting block, a first sliding rod slidably connected to the top of the mounting block, and a first spring provided between one end of the first sliding rod and the mounting block;

[0006] The tape cutter is provided with a loosening mechanism on one side. The loosening mechanism includes a support rod, a horizontal chamber, a movable chamber, and an unwinding machine. The horizontal chamber and the movable chamber are rotatably connected. The movable chamber has a cavity inside. The bottom of both the horizontal chamber and the movable chamber is fixedly connected to the support rod.

[0007] The bottom of the mounting block has a mounting hole, and a second sliding rod is slidably connected inside the mounting hole. A second spring is provided between the second sliding rod and the mounting hole.

[0008] By adopting the above technical solutions, the material loosening mechanism enables the cutting machine to better adapt to shoulder strap materials provided by different suppliers. Even if the raw materials have certain dimensional instability issues, the pre-processing of the material loosening mechanism can ensure the normal operation of the equipment and complete the cutting task, reducing dependence on specific suppliers. Enterprises can flexibly choose raw material suppliers according to market conditions, reducing procurement costs. Moreover, due to the improved cutting accuracy and stable product quality, the waste of raw materials caused by scrap is reduced, and the labor and time costs caused by frequent equipment adjustments and downtime maintenance are also reduced. The structure of the cutting machine, arc frame, belt, and crossbar mechanism realizes the automated cutting and processing of bra shoulder straps, which not only improves production efficiency but also reduces the complexity and safety risks of manual operation.

[0009] Furthermore, a first pressure block is fixedly connected to the other end of the first sliding rod, and a second pressure block is fixedly connected to the other end of the second sliding rod.

[0010] By adopting the above technical solution, the first pressure block fixedly connected to the other end of the first sliding rod and the second pressure block fixedly connected to the other end of the second sliding rod can more effectively clamp the belt and prevent it from falling off or shifting.

[0011] Furthermore, a crossbar is threadedly connected to one side of the mounting block, and the crossbar is used to move the fabric.

[0012] By adopting the above technical solution, the crossbar connected by threads on one side of the mounting block can be used to move the fabric, which allows the bra straps to be sorted and adjusted before cutting, ensuring that the straps are in the best position during the cutting process.

[0013] Furthermore, a clamping block is fixedly connected to the other side of the top of the cutting machine, and a slot is provided on the clamping block.

[0014] By adopting the above technical solution, the locking block and the slit fixed on the other side of the top of the cutting machine provide a stable and reliable fulcrum for fixing the bra strap, ensuring that the strap will not fall off or shift due to external force during the cutting process.

[0015] Furthermore, a number of pulleys are provided between the arc-shaped frame and the belt, and a motor is fixedly connected to the top of one side of the arc-shaped frame.

[0016] By adopting the above technical solution, the several pulleys set between the arc frame and the belt, and the motor fixedly connected to the top of one side of the arc frame, together constitute the drive system of the equipment, which enables the belt to move smoothly and continuously, thereby driving the crossbar mechanism to move.

[0017] Furthermore, a drive wheel is fixedly connected to the output end of the motor, and the drive wheel is used to drive the belt to move.

[0018] By adopting the above technical solution, the drive wheel fixedly connected to the output end of the motor can directly drive the belt to move, making the power transmission of the equipment more direct and efficient.

[0019] Furthermore, multiple crossbar mechanisms are provided, and the multiple crossbar mechanisms are arranged linearly and equidistantly.

[0020] By adopting the above technical solution, multiple crossbar mechanisms are set up, and these crossbar mechanisms are arranged linearly and equidistantly, which can handle bra straps of different lengths as needed, greatly improving the production efficiency and adaptability of the equipment.

[0021] Furthermore, a fixing device is provided on the other side of the tape cutter. The fixing device includes a sensor, an indicator light, a guide plate, and a holding rod. A mounting bracket is provided on one side of the holding rod. An electric push rod is rotatably connected to one side of the mounting bracket. A rubber pressure plate is rotatably connected to the movable end of the electric push rod, and one end of the rubber pressure plate is rotatably connected to one end of the mounting bracket. The guide plate, sensor, and indicator light are all fixedly connected to the bottom of the other side of the tape cutter, and the guide plate, sensor, and indicator light are arranged sequentially from left to right.

[0022] By adopting the above technical solutions, the entire process is automated, from shoulder strap recycling, counting, temporary storage to fixing and prompting for collection, forming a closed-loop control, reducing manual intervention and improving production efficiency.

[0023] In summary, the present invention has the following main advantages:

[0024] This utility model uses a material loosening mechanism to release a portion of the shoulder strap through an unwinding machine, allowing it to naturally recover its length within the cavity. This alleviates the problem of dimensional instability caused by stretching of the shoulder strap. After pre-loosening, the shoulder strap can maintain a relatively stable dimensional state during cutting, avoiding shrinkage after cutting and thus improving cutting accuracy.

[0025] This utility model incorporates a strap cutting machine, an arc-shaped frame, a belt, and a crossbar mechanism. The crossbar mechanism, equipped with mounting blocks, sliding rods, and springs, enables the positioning and feeding of bra straps. It can clamp onto the belt, ensuring the straps move in accordance with the belt's movement and maintaining stability during cutting. Furthermore, the crossbar mechanism can be arranged at equal intervals to handle bra straps of varying lengths, further improving production efficiency and resolving the cumbersome process of repeatedly removing cut straps from the machine and folding them.

[0026] This invention features several adjustable crossbar mechanisms. These mechanisms allow operators to flexibly adjust the spacing between the crossbars according to the cutting requirements of bra straps, making the equipment suitable for bra straps of different specifications and styles without the need to replace the equipment or make complex adjustments, thus greatly saving time and costs. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a cross-sectional three-dimensional structural diagram of the material loosening mechanism of this utility model;

[0029] Figure 3 This is a three-dimensional structural diagram of the tape cutting machine of this utility model;

[0030] Figure 4 This is a side view of the three-dimensional structure of the present invention;

[0031] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A;

[0032] Figure 6 This is a three-dimensional structural diagram of the belt of this utility model;

[0033] Figure 7 This is a three-dimensional structural diagram of the crossbar mechanism of this utility model;

[0034] Figure 8 This is a half-sectional structural diagram of the crossbar mechanism of this utility model;

[0035] Figure 9 This is a three-dimensional structural diagram of the fixing device of this utility model.

[0036] In the diagram: 1. Cutting machine; 2. Arc frame; 3. Belt; 4. Crossbar mechanism; 401. Mounting block; 402. First sliding rod; 403. First spring; 404. Mounting hole; 405. Second sliding rod; 406. Second spring; 407. First pressure block; 408. Second pressure block; 409. Crossbar; 5. Clamping block; 6. Gap; 7. Pulley; 8. Motor; 9. Drive wheel; 10. Shoulder belt; 11. Unloading mechanism; 111. Support rod; 112. Horizontal chamber; 113. Movable chamber; 114. Cavity; 115. Unwinder; 12. Fixing device; 121. Sensor; 122. Indicator light; 123. Guide plate; 124. Holding rod; 125. Mounting frame; 126. Electric push rod; 127. Rubber pressure plate. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] An ultrasonic tape cutting machine for processing bra straps, such as Figures 1-9 As shown, the device includes a tape cutter 1, an arc-shaped frame 2 fixedly connected to one side of the top of the tape cutter 1, a belt 3 sleeved on the outside of the arc-shaped frame 2, a crossbar mechanism 4 provided on the belt 3, the crossbar mechanism 4 including a mounting block 401, a first sliding rod 402 slidably connected to the top of the mounting block 401, and a first spring 403 provided between one end of the first sliding rod 402 and the mounting block 401;

[0039] A material loosening mechanism 11 is provided on one side of the tape cutting machine 1. The material loosening mechanism 11 includes a support rod 111, a horizontal chamber 112, a movable chamber 113, and an unwinding machine 115. The horizontal chamber 112 and the movable chamber 113 are rotatably connected. The interior of the movable chamber 113 is provided with a cavity 114. The bottom of both the horizontal chamber 112 and the movable chamber 113 are fixedly connected to the support rod 111.

[0040] The bottom of the mounting block 401 has a mounting hole 404. A second sliding rod 405 is slidably connected inside the mounting hole 404. A second spring 406 is provided between the second sliding rod 405 and the mounting hole 404. The combination of the mounting block 401, the first sliding rod 402 and the first spring 403 in the crossbar mechanism 4, as well as the mounting hole 404, the second sliding rod 405 and the second spring 406, allows the crossbar mechanism 4 to be flexibly clamped on the belt 3, ensuring the accuracy of cutting.

[0041] See Figure 5 , Figure 6 The other end of the first sliding rod 402 is fixedly connected to the first pressure block 407, and the other end of the second sliding rod 405 is fixedly connected to the second pressure block 408, which enhances the fixing effect of the crossbar mechanism 4 and the belt 3 and improves the accuracy and stability of the crossbar mechanism 4.

[0042] See Figure 6 One side of the mounting block 401 is connected to a crossbar 409 by a thread. The crossbar 409 is used to move the fabric. The crossbar 409 also increases the flexibility of the equipment, allowing the operator to replace the crossbar 409 of different lengths as needed.

[0043] See Figure 2 A locking block 5 is fixedly connected to the other side of the top of the tape cutting machine 1. A slot 6 is provided on the locking block 5. The combination of the locking block 5 and the slot 6 makes the installation and removal of the bra straps more convenient and quick.

[0044] See Figure 1 , Figure 2 Several pulleys 7 are provided between the arc-shaped frame 2 and the belt 3. A motor 8 is fixedly connected to the top of one side of the arc-shaped frame 2. The driving method of the motor 8 not only improves the automation level of the equipment, but also reduces the labor intensity of the operators.

[0045] See Figure 1 , Figure 2 , Figure 3 The output end of the motor 8 is fixedly connected to a drive wheel 9, which is used to drive the belt 3 to move. The drive wheel 9 also enhances the control capability of the motor 8 over the belt 3, so that the belt 3 can move at a predetermined speed and direction.

[0046] See Figure 1 , Figure 2 , Figure 4 There are multiple crossbar mechanisms 4, which are arranged linearly and equidistantly. This equidistant arrangement of multiple crossbar mechanisms makes the operation of the equipment more standardized and uniform, ensuring cutting quality and stability.

[0047] The implementation principle of this utility model is as follows: First, the unwinding machine 115 of the loosening mechanism 11 starts, releases a portion of the shoulder belt 10, and then the shoulder belt 10 passes through the movable chamber 113 and the horizontal chamber 112 and enters the interior of the tape cutter 1. Then the unwinding machine 115 continues to release a portion of the shoulder belt 10 and enters the interior of the cavity 114. At this time, the shoulder belt 10 will restore its length, achieving the effect of pre-loosening the belt.

[0048] One end of the bra strap 10 is clamped in the gap 6 of the rubber clip 5. According to the required length of the bra strap 10, multiple crossbar mechanisms 4 are clamped on the belt 3 at corresponding intervals. The mounting block 401 pulls the first sliding rod 402 through the first spring 403 and the second spring 406 pulls the second sliding rod 405, so that the first pressure block 407 and the second pressure block 408 can be clamped on the belt 3.

[0049] When the motor 8 is started, the output end of the motor 8 drives the drive wheel 9 to rotate, which in turn drives the belt 3 to move. The crossbar mechanism 4 on the belt 3 moves with the rotation of the belt, stretching the shoulder strap 10 from the initial position to the specified cutting length. When the shoulder strap 10 is stretched to the specified length and is located below the cutting head of the ultrasonic cutter, the ultrasonic cutter starts to work and cuts the shoulder strap 10. During the cutting process, due to the presence of the crossbar mechanism 4, the user does not need to directly contact the shoulder strap 10 or the cutting head, thus avoiding safety hazards.

[0050] After the cutting is completed, the motor 8 starts and drives the belt 3 to continue rotating, bringing the cut and welded shoulder strap 10 to the next step for recycling. At the same time, the new shoulder strap 10 is stretched to the cutting position under the action of the crossbar mechanism 4, ready for the next cut. By continuously repeating the above process, the ultrasonic tape cutting machine can cut the bra shoulder strap 10 continuously and efficiently, greatly improving production efficiency.

[0051] During the recycling process, the shoulder strap 10 falls off the table and passes through the guide plate 123. During this process, the photoelectric sensor 121 counts once. Then, the shoulder strap gradually slides off the crossbar mechanism 4 and falls onto the holding rod 124. Then, the electric push rod 126 is activated, driving the rubber pressure plate 127 to press the fallen shoulder strap 10 and complete the fixation. When a certain number is counted, the external controller control indicator light 122 lights up to prompt the worker to come and collect it.

[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An ultrasonic belt cutting machine for processing a shoulder strap of an undergarment, characterized by: The device includes a tape cutter (1), an arc frame (2) is fixedly connected to one side of the top of the tape cutter (1), a belt (3) is sleeved on the outside of the arc frame (2), a crossbar mechanism (4) is provided on the belt (3), the crossbar mechanism (4) includes a mounting block (401), a first sliding rod (402) is slidably connected to the top of the mounting block (401), and a first spring (403) is provided between one end of the first sliding rod (402) and the mounting block (401). The strip cutting machine (1) is provided with a loosening mechanism (11) on one side. The loosening mechanism (11) includes a support rod (111), a horizontal chamber (112), a movable chamber (113), and an unwinding machine (115). The horizontal chamber (112) and the movable chamber (113) are rotatably connected. The movable chamber (113) has a cavity (114) inside. The bottom of the horizontal chamber (112) and the movable chamber (113) are both fixedly connected with the support rod (111).

2. The ultrasonic band cutting machine for processing shoulder straps of an undergarment according to claim 1, characterized by: The mounting block (401) has a mounting hole (404) at its bottom. A second sliding rod (405) is slidably connected inside the mounting hole (404). A second spring (406) is provided between the second sliding rod (405) and the mounting hole (404). A first pressure block (407) is fixedly connected to the other end of the first sliding rod (402), and a second pressure block (408) is fixedly connected to the other end of the second sliding rod (405).

3. The ultrasonic band cutting machine for processing shoulder straps of an undergarment according to claim 1, characterized by: One side of the mounting block (401) is connected to a crossbar (409) by a thread, the crossbar (409) being used to move the fabric.

4. The ultrasonic band cutting machine for processing shoulder straps of an undergarment according to claim 1, characterized by: A clamping block (5) is fixedly connected to the other side of the top of the tape cutter (1), and a slot (6) is provided on the clamping block (5).

5. The ultrasonic band cutting machine for processing shoulder straps of an undergarment according to claim 1, characterized by: A number of pulleys (7) are provided between the arc frame (2) and the belt (3), and a motor (8) is fixedly connected to the top of one side of the arc frame (2).

6. The ultrasonic band cutting machine for processing shoulder straps of an undergarment according to claim 5, characterized by: The output end of the motor (8) is fixedly connected to a drive wheel (9), which is used to drive the belt (3) to move.

7. The ultrasonic band cutting machine for processing of shoulder straps of an undergarment according to claim 1, characterized in that: Multiple crossbar mechanisms (4) are provided, and the multiple crossbar mechanisms (4) are arranged linearly and equidistantly.

8. The ultrasonic band cutting machine for processing shoulder straps of an undergarment according to claim 1, characterized by: A fixing device (12) is provided on the other side of the tape cutter (1). The fixing device (12) includes a sensor (121), an indicator light (122), a guide plate (123), and a holding rod (124). A mounting bracket (125) is provided on one side of the holding rod (124). An electric push rod (126) is rotatably connected to one side of the mounting bracket (125). A rubber pressure plate (127) is rotatably connected to the movable end of the electric push rod (126). One end of the rubber pressure plate (127) is rotatably connected to one end of the mounting bracket (125). The guide plate (123), the sensor (121), and the indicator light (122) are all fixedly connected to the bottom of the other side of the tape cutter (1). The guide plate (123), the sensor (121), and the indicator light (122) are arranged sequentially from left to right.