A hand-tearable rag cutter device

Abstract

The embodiment of the application provides a hand-tearing cloth cutting device, and relates to the technical field of cloth production equipment, comprising a rack, a plurality of parallel guide rollers are rotationally connected to the rack, an ultrasonic cutting mechanism is arranged on the rack, the ultrasonic cutting mechanism performs ultrasonic heat cutting on the cloth according to a set frequency, and a tear line that is convenient to tear later is formed on the surface of the cloth, the ultrasonic cutting mechanism comprises an ultrasonic generator and an ultrasonic welding head, the ultrasonic welding head is electrically connected with the ultrasonic generator, the ultrasonic welding head is arranged along the width direction of the rack, a guide rail parallel to the ultrasonic welding head is fixed to the rack above the ultrasonic welding head, a mounting seat is slidably arranged on the guide rail, a cutter die matched with the ultrasonic welding head is arranged on the mounting seat, the cutter die is a circular hob, and a driving mechanism that drives the cutter die to rotate and slide along the guide rail is further arranged on the rack. The application has the effects of stable operation and controllable cutting depth.

Description

Technical Field

[0001] This utility model relates to the technical field of rag production equipment, and in particular to a hand-tearable rag cutter device. Background Technology

[0002] As a convenient cleaning product, tear-off cloths need to have tear marks formed on the long strip of cloth substrate during the production process to ensure that users can easily tear along the marks and that the marks are not easily torn before tearing.

[0003] Chinese patent CN222226911U discloses an ultrasonic cutting device for fabric processing. Its structural design is mainly to cut the fabric, but it cannot control the depth of the cut to form a "tearable but not cracked" mark, which easily leads to premature breakage of the cloth or difficulty in tearing.

[0004] Existing equipment for forming tear marks mostly uses a single translation drive structure, which has poor die movement stability and is prone to problems such as mark deviation and uneven depth, affecting product consistency.

[0005] To address the aforementioned issues, there is an urgent need to design a hand-torn rag cutter device that can achieve stable die movement and controllable cutting depth. Utility Model Content

[0006] To address the aforementioned technical problems, this application provides a hand-tearable cloth cutter device.

[0007] This application provides a hand-tearable rag cutter device with the following technical solution: A hand-tearable rag cutter device includes a frame, on which several parallel guide rollers are rotatably connected. An ultrasonic cutting mechanism is provided on the frame. The ultrasonic cutting mechanism performs ultrasonic thermal cutting on the rag at a set frequency, forming tear lines on the rag surface that are easy to tear later. The ultrasonic cutting mechanism includes an ultrasonic generator and an ultrasonic welding head. The ultrasonic welding head is electrically connected to the ultrasonic generator. The ultrasonic welding head is arranged along the width direction of the frame. A guide rail parallel to the ultrasonic welding head is fixed on the frame above the ultrasonic welding head. A mounting seat is slidably arranged on the guide rail. A cutting die that cooperates with the ultrasonic welding head is provided on the mounting seat. The cutting die is a circular roller cutter. A driving mechanism is also provided on the frame to drive the cutting die to rotate and slide along the guide rail.

[0008] Furthermore, the drive mechanism includes two pulleys rotatably connected to the frame, with a drive belt surrounding the two pulleys. A servo motor that drives one of the pulleys to rotate is fixed on the frame. Bearing seats are fixed on both sides of the other pulley on the frame. Rotary bearings are connected to the two bearing seats. The two ends of the pulley shaft located between the two bearing seats are rotatably connected to the corresponding rotary bearings. A clamping plate is fixed on the mounting base and fixed on the drive belt. The drive mechanism also includes a drive assembly that drives the die to rotate.

[0009] Furthermore, the drive assembly includes a drive rack fixed on the frame, the drive rack being arranged along the width direction of the frame, a drive shaft being rotatably connected to the mounting base, two drive gears being fixed on the drive shaft, and a driven gear being coaxially fixed on the die, the two drive gears meshing with the drive rack and the driven gear respectively.

[0010] Furthermore, the mounting base includes a sliding base connected to the guide rail and a lifting base slidably disposed at the bottom of the sliding base. The sliding base has a vertically formed sliding groove that passes through the sliding base. The lifting base has a sliding rod that passes through the sliding groove and is fixed thereon. The sliding base is provided with a positioning component to prevent the sliding rod from sliding in the sliding groove.

[0011] Furthermore, the sliding seat includes a fixed seat that is slidably connected to the guide rail and a movable seat that is detachably connected to the fixed seat. The sliding groove is divided into two semi-cylindrical grooves that are symmetrically arranged on the fixed seat and the movable seat. The fixed seat has a positioning groove that is horizontally penetrating the fixed seat. The positioning component includes a positioning bolt that passes through the positioning groove and is threadedly connected to the fixed seat.

[0012] Furthermore, the frame has vertically opening adjustment slots on both sides, and adjustment blocks are slidably arranged in the adjustment slots. Adjustment rollers that slide vertically are rotatably connected to the adjustment blocks, and adjustment springs that connect the adjustment blocks and are used to adjust the tension of the rag are installed in the adjustment slots.

[0013] Furthermore, there are two guide rails distributed along the height direction, and a guide rod with a "T"-shaped cross-section is integrally formed on the guide rail along the length direction. Two connecting blocks are fixed on the mounting base, and guide grooves are formed on the two connecting blocks. The guide grooves are "T"-shaped and adapted to the guide rods.

[0014] Furthermore, the die-cutting mold has several serrated grooves along its circumference, and blades for forming notches on the tear lines are installed in the serrated grooves.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. By using the principle of "ultrasonic hot cutting + roller cutter combination", the tear line depth can be precisely controlled by the gap between the die and the welding head, which avoids the gap being too small and causing "cutting the cloth", and avoids the gap being too large and causing "the mark to be too shallow" (difficult to tear).

[0017] 2. The composite drive of "synchronous belt drive + gear meshing linkage rotation" makes the lateral movement speed of the die-cutting mold, the rotation speed, and the cloth conveying speed completely coordinated; combined with the guiding accuracy of the T-shaped guide rail, the product consistency is improved, and the problems of "mark offset and uneven depth" caused by traditional single translation drive are solved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the drive mechanism in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the structure of the driving component in an embodiment of this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Guide roller; 3. Ultrasonic welding head; 4. Guide rail; 5. Die; 6. Pulley; 7. Drive belt; 8. Bearing seat; 9. Clamping plate; 10. Drive rack; 11. Drive shaft; 12. Drive gear; 13. Driven gear; 14. Lifting seat; 15. Sliding groove; 16. Sliding rod; 17. Fixed seat; 18. Moving seat; 19. Positioning groove; 20. Positioning bolt; 21. Adjusting groove; 22. Adjusting block; 23. Adjusting roller; 24. Guide rod; 25. Connecting block; 26. Guide groove. Detailed Implementation

[0022] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0023] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0025] This application discloses a hand-tear rag cutter device, referring to... Figure 1 The device includes a frame 1, on which several parallel guide rollers 2 are rotatably connected. The guide rollers 2 are arranged along the width of the frame 1. An ultrasonic cutting mechanism is provided on the frame 1. The ultrasonic cutting mechanism performs ultrasonic heat cutting on the cloth at a set frequency and forms tear lines on the surface of the cloth that are easy to tear later.

[0026] Reference Figure 1 and Figure 2 The ultrasonic cutting mechanism includes an ultrasonic generator and an ultrasonic welding head 3. The ultrasonic welding head 3 is electrically connected to the ultrasonic generator. The ultrasonic welding head 3 is arranged along the width direction of the frame 1. A guide rail 4 parallel to the ultrasonic welding head 3 is fixed on the frame 1 above the ultrasonic welding head 3. A mounting seat is slidably arranged on the guide rail 4. A cutting die 5 that cooperates with the ultrasonic welding head 3 is arranged on the mounting seat. The cutting die 5 is a circular roller cutter. A drive mechanism that drives the cutting die 5 to rotate and slide along the guide rail 4 is also provided on the frame 1.

[0027] Reference Figure 1 and Figure 2 The drive mechanism includes two pulleys 6 on the rotating frame 1, and a drive belt 7 is provided around the two pulleys 6. The pulleys 6 and the drive belt 7 are synchronous belts and synchronous pulleys. A servo motor that drives one of the pulleys 6 to rotate is fixed on the frame 1. Bearing seats 8 are fixed to the frame 1 on both sides of the other pulley 6 by bolts. Rotary bearings are connected to the two bearing seats 8. The two ends of the shaft of the pulley 6 located between the two bearing seats 8 are rotatably connected to the corresponding rotary bearings. A clamping plate 9 is fixed on the mounting base. The clamping plate 9 is fixed to the drive belt 7 by bolts and nuts to ensure the overall stability.

[0028] Reference Figure 1 and Figure 2The drive mechanism also includes a drive assembly that drives the die 5 to rotate. The drive assembly includes a drive rack 10 fixed on the frame 1. The drive rack 10 is arranged along the width direction of the frame 1. A drive shaft 11 is rotatably connected to the mounting base. The drive shaft 11 is arranged along the length direction of the frame 1. Two drive gears 12 are coaxially fixed on the drive shaft 11. A driven gear 13 is coaxially fixed on the rotating shaft of the die 5. The two drive gears 12 mesh with the drive rack 10 and the driven gear 13 respectively.

[0029] Reference Figure 1 and Figure 2 The mounting base includes a sliding seat connected to the guide rail 4 and a lifting seat 14 slidably disposed at the bottom of the sliding seat. A sliding groove 15 is vertically opened on the sliding seat and passes through the sliding seat. A sliding rod 16 is fixed on the lifting seat 14 and passes through the corresponding sliding groove 15. A positioning component is provided on the sliding seat to prevent the sliding rod 16 from sliding in the sliding groove 15.

[0030] Reference Figure 1 and Figure 2 The sliding seat includes a fixed seat 17 slidably connected to the guide rail 4 and a movable seat 18 detachably connected to the fixed seat 17. The sliding groove 15 is divided into two semi-cylindrical grooves symmetrically arranged on the opposite surfaces of the fixed seat 17 and the movable seat 18. The fixed seat 17 has two horizontally penetrating positioning grooves 19. The positioning assembly includes positioning bolts 20 passing through the positioning grooves 19. The positioning bolts 20 are threadedly connected to the fixed seat 17, so that the fixed seat 17 and the movable seat 18 clamp the sliding rod 16, thereby fixing the lifting seat 14 on the mounting base. It also facilitates the installation, disassembly and vertical height adjustment of the lifting seat 14. The clamping plate 9 is fixedly connected to the fixed seat 17.

[0031] Reference Figure 1 and Figure 2 The frame 1 has vertically opening adjustment grooves 21 on both sides. Adjustment blocks 22 that slide vertically are slidably arranged in the adjustment grooves 21. Adjustment rollers 23 that connect the two adjustment blocks 22 are rotatably connected to the adjustment blocks 22. The adjustment rollers 23 are arranged along the width direction of the frame 1. An adjustment spring is installed at the bottom of the adjustment grooves 21. The lower end of the adjustment spring is fixed to the inner wall of the adjustment grooves 21, and the upper end is fixed to the adjustment blocks 22. During the movement of the cloth, the tension of the cloth is adjusted by the action of the adjustment spring.

[0032] Reference Figure 1 and Figure 2 There are two guide rails 4 distributed along the height direction. A guide rod 24 with a "T" shaped cross section is integrally formed on the guide rail 4 along the length direction. Two connecting blocks 25 are fixed on the mounting base. A guide groove 26 is opened on the two connecting blocks 25 along the direction parallel to the guide rail 4 and passes through the connecting block 25. The guide groove 26 is "T" shaped and is adapted to the guide rod 24 to ensure smooth movement.

[0033] Reference Figure 1 and Figure 2 The die 5 has several serrated grooves along its circumference, and blades for creating notches on the tear line are installed in the serrated grooves. The blades in the serrated grooves of the die 5 have pre-set notches on the tear line, so users do not need to find a point of force when tearing, which increases the success rate of breaking the cloth and makes the break smooth and burr-free (avoiding scratches to hands or wiping surfaces); at the same time, the melting and reinforcement effect of the tear line can prevent the fibers at the edge of the cloth from loosening (traditional cloths without heat-cut marks are prone to shedding), thus extending the product's service life.

[0034] The working principle of the cutting device in this application is as follows: First, a long strip of cloth is rolled up and fed onto the device. The cloth is then pulled around the adjusting roller 23 and the guide roller 2, passing between the ultrasonic welding head 3 and the die 5, and fixed to the take-up shaft. The vertical gap between the die 5 and the welding head is adjusted according to the thickness of the cloth, and parameters such as ultrasonic power and servo motor speed are set. After the device is started, the take-up assembly and the guide roller 2 drive the cloth to be conveyed horizontally at the set speed. The adjusting roller 23, in conjunction with the adjusting spring, compensates for the cloth tension in real time through elastic deformation to prevent wrinkles or breakage. The servo motor drives the drive belt 7 and the pulley 6 to rotate, causing the mounting base to move horizontally along the guide rail 4 (the horizontal movement speed matches the cloth conveying speed). At the same time, when the mounting base moves horizontally, the transmission... The transmission gear 12 on shaft 11 meshes with the fixed drive rack 10, driving the transmission shaft 11 to rotate. In turn, the transmission gear 12 drives the die 5 to rotate synchronously. The ultrasonic generator converts the power frequency signal into a high frequency signal and transmits it to the ultrasonic welding head 3. The ultrasonic welding head 3 generates high frequency mechanical vibration, causing the fibers in the contact area of ​​the cloth to melt. The rotating die 5 applies slight pressure to the melted area, forming a tear line that is not completely cut but can be torn without breaking. The blades in the sawtooth groove of the die 5 simultaneously cut tiny notches on the tear line. Finally, the processed cloth is conveyed to the winding shaft by the discharge guide roller 2 and wound into a roll, completing the automated processing of the hand-torn cloth. Users can then easily tear it into individual pieces along the notches on the tear line.

[0035] The above are merely preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included within the protection scope recorded in the claims.

Claims

1. A hand-tearable cloth cutter device, comprising a frame (1), wherein a plurality of mutually parallel guide rollers (2) are rotatably connected to the frame (1), characterized in that: An ultrasonic cutting mechanism is provided on the frame (1). The ultrasonic cutting mechanism performs ultrasonic thermal cutting on the cloth at a set frequency and forms a tear line on the surface of the cloth that is easy to tear later. The ultrasonic cutting mechanism includes an ultrasonic generator and an ultrasonic welding head (3). The ultrasonic welding head (3) is electrically connected to the ultrasonic generator. The ultrasonic welding head (3) is arranged along the width direction of the frame (1). A guide rail (4) parallel to the ultrasonic welding head (3) is fixed on the frame (1) above the ultrasonic welding head (3). A mounting seat is slidably arranged on the guide rail (4). A die (5) that cooperates with the ultrasonic welding head (3) is arranged on the mounting seat. The die (5) is a circular roller cutter. A driving mechanism is also provided on the frame (1) to drive the die (5) to rotate and slide along the guide rail (4).

2. The hand-tearable cloth cutter device according to claim 1, characterized in that: The drive mechanism includes two pulleys (6) on a rotating connecting frame (1), and a drive belt (7) is provided on the two pulleys (6) and surrounds the two pulleys (6). A servo motor that drives one of the pulleys (6) to rotate is fixed on the frame (1). Bearing seats (8) are fixed on the frame (1) on both sides of the other pulley (6). Rotary bearings are connected to the two bearing seats (8). The two ends of the shaft of the pulley (6) located between the two bearing seats (8) are rotatably connected to the corresponding rotary bearings. A clamping plate (9) is fixed on the mounting base. The clamping plate (9) is fixed on the drive belt (7). The drive mechanism also includes a drive assembly that drives the die (5) to rotate.

3. The hand-tearable cloth cutter device according to claim 2, characterized in that: The drive assembly includes a drive rack (10) fixed on the frame (1), the drive rack (10) is arranged along the width direction of the frame (1), a drive shaft (11) is rotatably connected to the mounting base, two drive gears (12) are fixed on the drive shaft (11), and a driven gear (13) is coaxially fixed on the die (5). The two drive gears (12) mesh with the drive rack (10) and the driven gear (13) respectively.

4. The hand-tearable cloth cutter device according to claim 3, characterized in that: The mounting base includes a sliding seat connected to the guide rail (4) and a lifting seat (14) slidably disposed at the bottom of the sliding seat. The sliding seat has a vertically formed sliding groove (15) that passes through the sliding seat. The lifting seat (14) has a sliding rod (16) that passes through the sliding groove (15) and the sliding seat has a positioning component to prevent the sliding rod (16) from sliding in the sliding groove (15).

5. The hand-tearable cloth cutter device according to claim 4, characterized in that: The sliding seat includes a fixed seat (17) slidably connected to the guide rail (4) and a movable seat (18) detachably connected to the fixed seat (17). The sliding groove (15) is divided into two semi-cylindrical grooves symmetrically arranged on the fixed seat (17) and the movable seat (18). The fixed seat (17) is provided with a positioning groove (19) that is horizontally penetrating the fixed seat (17). The positioning component includes a positioning bolt (20) that passes through the positioning groove (19) and is threadedly connected to the fixed seat (17).

6. The hand-tearable cloth cutter device according to claim 1, characterized in that: The frame (1) has vertically opening adjustment grooves (21) on both sides. Adjustment blocks (22) are slidably arranged in the adjustment grooves (21). Adjustment rollers (23) that slide in the vertical direction are rotatably connected to the adjustment blocks (22). Adjustment springs that connect the adjustment blocks (22) and are used to adjust the tension of the rag are installed in the adjustment grooves (21).

7. The hand-tearable cloth cutter device according to claim 5, characterized in that: The guide rail (4) consists of two rails distributed along the height direction. A guide rod (24) with a "T" shaped cross-section is integrally formed on the guide rail (4) along the length direction. Two connecting blocks (25) are fixed on the mounting base. Guide grooves (26) are provided on the two connecting blocks (25). The guide grooves (26) are "T" shaped and are adapted to the guide rods (24).

8. The hand-tearable cloth cutter device according to claim 1, characterized in that: The die (5) has a plurality of serrated grooves along its circumference, and blades for forming notches on the tear line are installed in the serrated grooves.

Images