Automatic elastic sewing machine with ultrasonic cutting mechanism

Abstract

The utility model discloses an automatic rubber band machine with an ultrasonic cutting mechanism, relates to the field of rubber band machines, and aims to solve the problems that the existing automatic rubber band machine usually adopts a cutter to cut a rubber band material, the cutter applies pressure to the rubber band material to realize cutting, burrs on a cutting surface are uneven, the cutter does not have an edge sealing function during cutting, and the cutting efficiency is high. According to the technical scheme, the ultrasonic cutting machine is characterized in that the ultrasonic cutting machine comprises a machine base, a first clamping mechanism is arranged above the machine base, and an ultrasonic cutting mechanism is arranged on the transverse side of the first clamping mechanism; the ultrasonic cutting mechanism comprises a mounting frame, a cutting groove, a second connecting frame, an ultrasonic cutter, a third electric push rod, a fourth electric push rod, a third mounting groove and a second telescopic cavity, the second connecting frame is arranged above the mounting frame, the fourth electric push rod is arranged in the second telescopic cavity, and the ultrasonic cutter is arranged in the third mounting groove. And the third electric push rod is arranged on one side of the ultrasonic cutter.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber band machines, specifically an automatic rubber band machine with an ultrasonic cutting mechanism. Background Technology

[0002] An elastic band machine is a specialized piece of machinery used to produce elastic bands. It mainly consists of a frame, feeding mechanism, needle plate, cutting device, elastic band tensioning device, heating system, and other parts. It is a highly efficient and precise piece of machinery that can meet the production needs of various elastic band products and is widely used in various products, such as elastic bands for sports pants and casual pants, shirt plackets, and decorative strips.

[0003] A search revealed that prior art, publication number CN209793831U, discloses an automatic elastic band machine, including a worktable and a feeding device, a pulling device, a flipping manipulator, a feed guide rail, and a sewing device mounted on the worktable. The feeding device and the pulling device are respectively located at both ends of the flipping manipulator, which is connected and fixed to the feed guide rail. The feeding device includes a first frame and a second frame. The feed guide rail is located below the pulling device, and its lower end is connected to a connecting and fixing plate, which is fixedly connected to the lower end of the flipping manipulator. An ultrasonic cutting device is provided at the discharge end of the second frame of the feeding device. This utility model utilizes an anvil-type ultrasonic cutting device in conjunction with existing automatic elastic band machines, ensuring smooth and even cutting of the elastic bands. By placing the feed guide rail below the pulling device, the structure of the existing automatic elastic band machine is rationally designed, improving the level of automation and production efficiency.

[0004] However, the following drawbacks still exist in this device and existing technology:

[0005] Existing automatic rubber band machines typically use a cutter to cut the rubber band strip. The cutter achieves cutting by applying pressure to the rubber band strip, resulting in uneven burrs on the cut surface. The cutter does not have an edge sealing function, and the cut surface is prone to loose material structure, which reduces the quality of the produced rubber band and fails to meet the service life requirements. Utility Model Content

[0006] The purpose of this invention is to provide an automatic rubber band machine with an ultrasonic cutting mechanism.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An automatic rubber band machine with an ultrasonic cutting mechanism includes a base. A first clamping mechanism is disposed above the base. An ultrasonic cutting mechanism is disposed on one side of the first clamping mechanism, and a second clamping mechanism is disposed on one side of the first clamping mechanism. An edge sealing mechanism is disposed on one side of the second clamping mechanism. The first clamping mechanism, the ultrasonic cutting mechanism, the second clamping mechanism, and the edge sealing mechanism are fixedly connected to the base. The ultrasonic cutting mechanism includes a mounting frame, a cutting groove, a second connecting frame, an ultrasonic cutter, a third electric actuator, a fourth electric actuator, a third mounting groove, and a second telescopic cavity. Both the mounting frame and the second connecting frame are L-shaped. The mounting frame is connected to the base by screws. The connection includes a groove located at the upper end of the mounting frame, a second telescopic cavity located inside one end of the mounting frame, a second connecting frame located above the mounting frame, one end of the second connecting frame extending into the interior of the second telescopic cavity and slidably connected to the mounting frame, a fourth electric actuator located inside the second telescopic cavity and its telescopic end fixedly connected to the second connecting frame, a third mounting groove located at the top of the second connecting frame, an ultrasonic cutter located inside the third mounting groove and slidably connected to the second connecting frame, a third electric actuator located on one side of the ultrasonic cutter and its telescopic end fixedly connected to the ultrasonic cutter.

[0009] By adopting the above technical solution, the first clamping mechanism clamps one end of the elastic band material. By controlling the movement of the first clamping mechanism, the elastic band material is pulled out. When the elastic band material is pulled out to a sufficient length, the first clamping mechanism folds one end of the clamped elastic band material to align the two ends of the elastic band material. The elastic band material is placed on the mounting frame. The fourth electric push rod is driven to lower the second connecting frame. As the second connecting frame lowers, the ultrasonic cutter falls down. The ultrasonic cutter approaches the elastic band material, activates the ultrasonic cutter, and drives the third electric push rod to move the ultrasonic cutter along the third mounting groove. The moving ultrasonic cutter cuts the elastic band material. The second clamping mechanism clamps and moves the aligned elastic band material to the edge sealing mechanism. The edge sealing mechanism sews the aligned ends of the elastic band material together.

[0010] Furthermore, the upper end of the machine base is provided with an installation cavity, and there are two installation cavities. A second feeding roller is provided inside one of the installation cavities, and the second feeding roller is rotatably connected to the machine base. A first motor is provided on one side of the machine base, and the first motor is connected to the machine base by screws. The output end of the first motor is connected to one end of the second feeding roller.

[0011] By adopting the above technical solution, the first motor drives the second feeding roller to rotate, and the rubber band material falls onto the second feeding roller. As the second feeding roller rotates, the rubber band material is fed.

[0012] Furthermore, a first telescopic cavity is provided on one side of the mounting cavity, a first connecting frame is provided above the second feeding roller, one end of the first connecting frame extends into the interior of the first telescopic cavity, and the first connecting frame is slidably connected to the machine base, a fifth electric push rod is provided inside the first telescopic cavity, and the fifth electric push rod is located below the first connecting frame, the telescopic end of the fifth electric push rod is fixedly connected to the first connecting frame, a pressure roller is provided on the inner side of the first connecting frame, and the pressure roller is rotatably connected to the first connecting frame, and a guide roller is provided on one side of the first connecting frame, and the guide roller is rotatably connected to the machine base.

[0013] By adopting the above technical solution, the fifth electric push rod drives the first connecting frame to rise and fall. The first connecting frame descends and drops the pressure roller. The dropped pressure roller contacts the upper end of the rubber band material. The second feeding roller cooperates with the pressure roller to press the rubber band material tightly, ensuring the feeding effect of the rubber band material.

[0014] Further, the first clamping mechanism includes a mounting plate, a first mounting groove, a connecting seat, a connecting plate, a first electric push rod, a second mounting groove, a lower clamping plate, an upper clamping plate, and a second electric push rod. The first mounting groove is disposed on the inner wall of the mounting plate, the connecting seat is disposed on the inner side of the mounting plate, one end of the connecting seat extends into the interior of the first mounting groove, and the connecting seat is slidably connected to the mounting plate. The first electric push rod is disposed inside the first mounting groove, and the telescopic end of the first electric push rod is fixedly connected to the connecting seat. The connecting plate is disposed on one side of the connecting seat, and the connecting plate is rotatably connected to the connecting seat. The second mounting groove is disposed on the inner wall of one end of the connecting plate. The lower clamping plate and the upper clamping plate are disposed on one side of the connecting plate, and the lower clamping plate is fixedly connected to the connecting plate. One end of the upper clamping plate extends into the interior of the second mounting groove, and the upper clamping plate is slidably connected to the connecting plate. The second electric push rod is disposed inside the second mounting groove, and the telescopic end of the second electric push rod is fixedly connected to the upper end of the upper clamping plate.

[0015] By adopting the above technical solution, the lower clamping plate moves to below one end of the rubber band material, the second electric push rod drives the upper clamping plate to rise and fall, and as the upper clamping plate descends, it cooperates with the lower clamping plate to clamp one end of the rubber band material. The first electric push rod drives the connecting seat to move along the first mounting groove, pulling out the delivered rubber band material.

[0016] Furthermore, a third motor is provided inside the connecting base, and the third motor is connected to the connecting base by screws, with the output end of the third motor fixedly connected to the connecting plate.

[0017] By adopting the above technical solution, the third motor drives the connecting plate to rotate, which can fold one end of the clamped rubber band material and align the two ends of the rubber band material.

[0018] Furthermore, a first feeding roller is provided inside another of the mounting cavities, and the first feeding roller is rotatably connected to the machine base. A second motor is provided on one side of the machine base, and the second motor is connected to the machine base by screws. The output end of the second motor is connected to one end of the first feeding roller.

[0019] By adopting the above technical solution, the second motor drives the first feeding roller to rotate, and the pulled rubber strip falls onto the first feeding roller. As the first feeding roller rotates, the delivered rubber strip falls down.

[0020] In summary, the beneficial technical effects of this utility model are as follows:

[0021] 1. An ultrasonic cutting mechanism is adopted. The fourth electric push rod drives the second connecting frame to rise and fall. As the second connecting frame descends, the ultrasonic cutter falls down. The ultrasonic cutter approaches the elastic band material, activates the ultrasonic cutter, and drives the third electric push rod to move the ultrasonic cutter along the third mounting groove. The moving ultrasonic cutter cuts the elastic band material. The cut surface of the ultrasonic cutter has smooth burrs. The ultrasonic cutter has an edge sealing function, so the cut surface will not have loose material structure, thus improving the production effect of elastic band.

[0022] 2. A first clamping mechanism is adopted. The first electric push rod drives the connecting seat to move along the first mounting groove. The lower clamping plate moves to below one end of the elastic band material. The second electric push rod drives the upper clamping plate to descend and cooperate with the lower clamping plate to clamp one end of the elastic band material. The first electric push rod drives the connecting seat to move in the opposite direction along the first mounting groove to pull out the delivered elastic band material. After the elastic band material is pulled out to a sufficient length, the third motor is turned on to drive the connecting plate to rotate and fold one end of the clamped elastic band material. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of this practical application;

[0025] Figure 2 This is the structural diagram of the first clamping mechanism in this practical application;

[0026] Figure 3 This is a structural diagram of a practical ultrasonic cutting mechanism;

[0027] Figure 4 This is a diagram showing the connection relationship between the connector and the mounting plate in this utility model;

[0028] Figure 5 This is a cross-sectional view of a practical ultrasonic cutting mechanism;

[0029] Figure 6 This is a diagram showing the connection relationship between the second feed roller and the pressure roller and the machine base in this practical application.

[0030] In the diagram, 1 is the machine base; 2 is the first clamping mechanism; 3 is the guide roller; 4 is the first connecting frame; 5 is the ultrasonic cutting mechanism; 6 is the second clamping mechanism; 7 is the edge sealing mechanism; 8 is the first motor; 9 is the second motor; 10 is the mounting plate; 11 is the first mounting groove; 12 is the connecting seat; 13 is the connecting plate; 14 is the first electric push rod; 15 is the second mounting groove; 16 is the lower clamping plate; 17 is the upper clamping plate; 18 is the first feeding roller; 19 is the second electric push rod; 20 is the mounting frame; 21 is the cutting groove; 22 is the second connecting frame; 23 is the ultrasonic cutter; 24 is the third electric push rod; 25 is the fourth electric push rod; 26 is the third motor; 27 is the third mounting groove; 28 is the mounting cavity; 29 is the second feeding roller; 30 is the first telescopic cavity; 31 is the fifth electric push rod; 32 is the pressure roller; and 33 is the second telescopic cavity. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-6This utility model provides a technical solution: an automatic rubber band machine with an ultrasonic cutting mechanism, including a base 1, a first clamping mechanism 2 arranged above the base 1, an ultrasonic cutting mechanism 5 arranged on one side of the first clamping mechanism 2 laterally, a second clamping mechanism 6 arranged on one side of the first clamping mechanism 2 longitudinally, and an edge sealing mechanism 7 arranged on one side of the second clamping mechanism 6. The first clamping mechanism 2, the ultrasonic cutting mechanism 5, the second clamping mechanism 6, and the edge sealing mechanism 7 are fixedly connected to the base 1. The ultrasonic cutting mechanism 5 includes a mounting frame 20, a cutting groove 21, a second connecting frame 22, and an ultrasonic cutter 23. The system includes a third electric actuator 24, a fourth electric actuator 25, a third mounting groove 27, and a second telescopic cavity 33. The mounting frame 20 and the second connecting frame 22 are both L-shaped. The mounting frame 20 is connected to the base 1 by screws. A groove 21 is located at the upper end of the mounting frame 20. The second telescopic cavity 33 is located inside one end of the mounting frame 20. The second connecting frame 22 is located above the mounting frame 20, with one end extending into the second telescopic cavity 33 and slidably connected to the mounting frame 20. The fourth electric actuator 25 is located inside the second telescopic cavity 33. The telescopic end of component 5 is fixedly connected to the second connecting frame 22. The third mounting groove 27 is located on the top of the second connecting frame 22. The ultrasonic cutter 23 is located inside the third mounting groove 27 and is slidably connected to the second connecting frame 22. The third electric push rod 24 is located on one side of the ultrasonic cutter 23, and the telescopic end of the third electric push rod 24 is fixedly connected to the ultrasonic cutter 23. The first clamping mechanism 2 clamps one end of the rubber band material. By controlling the movement of the first clamping mechanism 2, the rubber band material is pulled out. When the rubber band material is pulled out to a sufficient length, the clamping mechanism 2 then pulls the clamped rubber band material out. Fold the ends to align the two ends of the elastic band material. Place the elastic band material on the mounting frame 20. Drive the fourth electric actuator 25 to lower the second connecting frame 22. As the second connecting frame 22 lowers, the ultrasonic cutter 23 falls down. The ultrasonic cutter 23 approaches the elastic band material. Turn on the ultrasonic cutter 23 and drive the third electric actuator 24 to move the ultrasonic cutter 23 along the third mounting groove 27. The moving ultrasonic cutter 23 cuts the elastic band material. The aligned elastic band material is clamped and moved to the edge sealing mechanism 7 by the second clamping mechanism 6. The edge sealing mechanism 7 sews the aligned ends of the elastic band material.

[0034] Please see Figure 1 and Figure 6The upper end of the base 1 is provided with an installation cavity 28. There are two installation cavities 28. A second feeding roller 29 is provided inside one of the installation cavities 28 and is rotatably connected to the base 1. A first motor 8 is provided on one side of the base 1 and is connected to the base 1 by screws. The output end of the first motor 8 is connected to one end of the second feeding roller 29. The first motor 8 drives the second feeding roller 29 to rotate, and the rubber band material falls onto the second feeding roller 29. As the second feeding roller 29 rotates, the rubber band material is fed.

[0035] Please see Figure 1 and Figure 6 A first telescopic cavity 30 is provided on one side of the mounting cavity 28. A first connecting frame 4 is provided above the second feeding roller 29. One end of the first connecting frame 4 extends into the interior of the first telescopic cavity 30 and is slidably connected to the machine base 1. A fifth electric push rod 31 is provided inside the first telescopic cavity 30 and is located below the first connecting frame 4. The telescopic end of the fifth electric push rod 31 is fixedly connected to the first connecting frame 4. A pressure roller 32 is provided on the inner side of the first connecting frame 4 and is rotatably connected to the first connecting frame 4. A guide roller 3 is provided on one side of the first connecting frame 4 and is rotatably connected to the machine base 1. The fifth electric push rod 31 drives the first connecting frame 4 to rise and fall. The first connecting frame 4 descends and drops the pressure roller 32. The dropped pressure roller 32 contacts the upper end of the rubber band material. The second feeding roller 29 cooperates with the pressure roller 32 to press the rubber band material tightly, ensuring the rubber band material feeding effect.

[0036] Please see Figure 1 , Figure 2 and Figure 4The first clamping mechanism 2 includes a mounting plate 10, a first mounting groove 11, a connecting seat 12, a connecting plate 13, a first electric push rod 14, a second mounting groove 15, a lower clamping plate 16, an upper clamping plate 17, and a second electric push rod 19. The first mounting groove 11 is disposed on the inner wall of the mounting plate 10. The connecting seat 12 is disposed on the inner side of the mounting plate 10, with one end extending into the interior of the first mounting groove 11 and slidably connected to the mounting plate 10. The first electric push rod 14 is disposed inside the first mounting groove 11, and its telescopic end is fixedly connected to the connecting seat 12. The connecting plate 13 is disposed on one side of the connecting seat 12 and rotatably connected to the connecting seat 12. The second mounting groove 15 is disposed on the inner wall of the mounting plate 10. On the inner wall of one end of the connecting plate 13, the lower clamping plate 16 and the upper clamping plate 17 are disposed on one side of the connecting plate 13, and the lower clamping plate 16 is fixedly connected to the connecting plate 13. One end of the upper clamping plate 17 extends into the interior of the second mounting groove 15, and the upper clamping plate 17 is slidably connected to the connecting plate 13. The second electric push rod 19 is disposed inside the second mounting groove 15, and the telescopic end of the second electric push rod 19 is fixedly connected to the upper end of the upper clamping plate 17. The lower clamping plate 16 moves to below one end of the elastic band material, and the second electric push rod 19 drives the upper clamping plate 17 to rise and fall. As the upper clamping plate 17 descends, it cooperates with the lower clamping plate 16 to clamp one end of the elastic band material. The first electric push rod 14 drives the connecting seat 12 to move along the first mounting groove 11, pulling out the delivered elastic band material.

[0037] Please see Figure 4 The connecting seat 12 is equipped with a third motor 26, and the third motor 26 is connected to the connecting seat 12 by screws. The output end of the third motor 26 is fixedly connected to the connecting plate 13. The third motor 26 drives the connecting plate 13 to rotate 180 degrees, which can fold one end of the clamped rubber strip and align the two ends of the rubber strip.

[0038] Please see Figure 1 Another mounting cavity 28 is equipped with a first feeding roller 18, which is rotatably connected to the base 1. A second motor 9 is provided on one side of the base 1, and the second motor 9 is connected to the base 1 by screws. The output end of the second motor 9 is connected to one end of the first feeding roller 18. The second motor 9 drives the first feeding roller 18 to rotate, and the pulled rubber strip falls onto the first feeding roller 18. As the first feeding roller 18 rotates, the delivered rubber strip falls down.

[0039] Working principle: The elastic band material is placed flat on the second feeding roller 29. The fifth electric actuator 31 drives the first connecting frame 4 to descend, causing the pressure roller 32 to fall. The fallen pressure roller 32 contacts the upper end of the elastic band material. The first electric actuator 14 drives the connecting seat 12 to move along the first mounting groove 11. The lower clamping plate 16 moves below one end of the elastic band material. The second electric actuator 19 drives the upper clamping plate 17 to descend, cooperating with the lower clamping plate 16 to clamp one end of the elastic band material. At the same time, the first motor 8 is turned on and drives the first electric actuator 14. The first motor 8 drives the second feeding roller 29 to rotate. As the second feeding roller 29 rotates, the elastic band material is fed. The first electric actuator 14 drives the connecting seat 12 to move in the opposite direction along the first mounting groove 11. The device moves and pulls out the delivered elastic band material. Once the elastic band material is pulled out to a sufficient length, the third motor 26 is turned on to rotate the connecting plate 13 180 degrees, folding one end of the clamped elastic band material. The fourth electric push rod 25 is driven to lower the second connecting frame 22. As the second connecting frame 22 lowers, the ultrasonic cutter 23 falls down. The ultrasonic cutter 23 approaches the elastic band material, and the ultrasonic cutter 23 is turned on and the third electric push rod 24 is driven to move the ultrasonic cutter 23 along the third mounting groove 27. The moving ultrasonic cutter 23 cuts the elastic band material. The aligned elastic band material is clamped and moved to the edge sealing mechanism 7 by the second clamping mechanism 6. The edge sealing mechanism 7 then sews the aligned parts of the two ends of the elastic band material.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic rubber band cutting machine with an ultrasonic cutting mechanism, comprising a base (1), characterized in that: A first clamping mechanism (2) is provided above the base (1). An ultrasonic cutting mechanism (5) is provided on one side of the first clamping mechanism (2) in the horizontal direction. A second clamping mechanism (6) is provided on one side of the first clamping mechanism (2) in the vertical direction. An edge sealing mechanism (7) is provided on one side of the second clamping mechanism (6). The first clamping mechanism (2), the ultrasonic cutting mechanism (5), the second clamping mechanism (6) and the edge sealing mechanism (7) are fixedly connected to the base (1). The ultrasonic cutting mechanism (5) includes a mounting frame (20), a cutting groove (21), a second connecting frame (22), an ultrasonic cutter (23), a third electric push rod (24), a fourth electric push rod (25), a third mounting groove (27) and a second telescopic cavity (33). The mounting frame (20) and the second connecting frame (22) are both L-shaped. The mounting frame (20) is connected to the base (1) by screws. The cutting groove (21) is provided on the mounting frame (20). At the upper end of the mounting bracket (20), the second telescopic cavity (33) is located inside one end of the mounting bracket (20), the second connecting bracket (22) is located above the mounting bracket (20), one end of the second connecting bracket (22) extends into the interior of the second telescopic cavity (33), and the second connecting bracket (22) is slidably connected to the mounting bracket (20), the fourth electric push rod (25) is located inside the second telescopic cavity (33), and the telescopic end of the fourth electric push rod (25) is fixedly connected to the second connecting bracket (22), the third mounting groove (27) is located at the top of the second connecting bracket (22), the ultrasonic cutter (23) is located inside the third mounting groove (27), and the ultrasonic cutter (23) is slidably connected to the second connecting bracket (22), the third electric push rod (24) is located on one side of the ultrasonic cutter (23), and the telescopic end of the third electric push rod (24) is fixedly connected to the ultrasonic cutter (23).

2. An automatic rubber band cutting machine with an ultrasonic cutting mechanism according to claim 1, characterized in that: The upper end of the base (1) is provided with an installation cavity (28). There are two installation cavities (28). A second feeding roller (29) is provided inside one of the installation cavities (28), and the second feeding roller (29) is rotatably connected to the base (1). A first motor (8) is provided on one side of the base (1), and the first motor (8) is connected to the base (1) by screws. The output end of the first motor (8) is connected to one end of the second feeding roller (29).

3. An automatic rubber band cutting machine with an ultrasonic cutting mechanism according to claim 2, characterized in that: A first telescopic cavity (30) is provided on one side of the mounting cavity (28). A first connecting frame (4) is provided above the second feeding roller (29). One end of the first connecting frame (4) extends into the interior of the first telescopic cavity (30), and the first connecting frame (4) is slidably connected to the machine base (1). A fifth electric push rod (31) is provided inside the first telescopic cavity (30), and the fifth electric push rod (31) is located below the first connecting frame (4). The telescopic end of the fifth electric push rod (31) is fixedly connected to the first connecting frame (4). A pressure roller (32) is provided on the inner side of the first connecting frame (4), and the pressure roller (32) is rotatably connected to the first connecting frame (4). A guide roller (3) is provided on one side of the first connecting frame (4), and the guide roller (3) is rotatably connected to the machine base (1).

4. An automatic elastic band cutting machine with an ultrasonic cutting mechanism according to claim 1, characterized in that: The first clamping mechanism (2) includes a mounting plate (10), a first mounting groove (11), a connecting seat (12), a connecting plate (13), a first electric push rod (14), a second mounting groove (15), a lower clamping plate (16), an upper clamping plate (17), and a second electric push rod (19). The first mounting groove (11) is disposed on the inner wall of the mounting plate (10). The connecting seat (12) is disposed on the inner side of the mounting plate (10). One end of the connecting seat (12) extends into the interior of the first mounting groove (11), and the connecting seat (12) is slidably connected to the mounting plate (10). The first electric push rod (14) is disposed inside the first mounting groove (11), and the telescopic end of the first electric push rod (14) is connected to the connecting seat (19). 12) Fixed connection, the connecting plate (13) is set on one side of the connecting seat (12), and the connecting plate (13) is rotatably connected to the connecting seat (12). The second mounting groove (15) is set on the inner wall of one end of the connecting plate (13). The lower clamping plate (16) and the upper clamping plate (17) are set on one side of the connecting plate (13), and the lower clamping plate (16) is fixedly connected to the connecting plate (13). One end of the upper clamping plate (17) extends into the interior of the second mounting groove (15), and the upper clamping plate (17) is slidably connected to the connecting plate (13). The second electric push rod (19) is set inside the second mounting groove (15), and the telescopic end of the second electric push rod (19) is fixedly connected to the upper end of the upper clamping plate (17).

5. An automatic rubber band cutting machine with an ultrasonic cutting mechanism according to claim 4, characterized in that: The connecting seat (12) is equipped with a third motor (26), and the third motor (26) is connected to the connecting seat (12) by screws. The output end of the third motor (26) is fixedly connected to the connecting plate (13).

6. An automatic rubber band cutting machine with an ultrasonic cutting mechanism according to claim 2, characterized in that: Another mounting cavity (28) is provided with a first feeding roller (18), and the first feeding roller (18) is rotatably connected to the base (1). A second motor (9) is provided on one side of the base (1), and the second motor (9) is connected to the base (1) by screws. The output end of the second motor (9) is connected to one end of the first feeding roller (18).

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