An ultrasonic web welding apparatus

Abstract

This invention provides an ultrasonic film welding device, comprising: a worktable; two movable slots respectively opened on both sides of the top of the worktable, a driving component fixedly installed on both sides of the outer surface of the worktable, and a threaded rod rotatably installed inside the movable slot. This invention provides an ultrasonic film welding device that, by placing the upper and lower ends of two films to be welded aligned on a connecting plate, flipping the rotating plate causes a pressing block to adhere to the connecting plate, the connecting plate and the pressing block clamping the film. As the output shaft of the driving component controls the rotation of the threaded rod, the clamping device slides inside the movable slot, allowing the clamped film to pass through the bottom of the rotating welding block, enabling the rotating welding block to weld the film. This device has a simple structure, is highly practical, eliminates the need for manual film dragging, and automatically drags the film to be welded by the welding head, reducing operational accidents and improving the safety of welding small-sized film bags.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic thin film welding technology, and in particular to an ultrasonic thin film welding device. Background Technology

[0002] Ultrasonic thin film welding equipment is a device that uses high-frequency ultrasonic vibration to achieve thermal sealing of thin film materials. Its core consists of an ultrasonic generator, transducer, amplitude transformer and welding head. The welding head transmits vibration energy to the contact surface of the thin film, causing local high-frequency friction to generate heat, instantly melting the material and pressing it to fuse, forming a strong joint.

[0003] This device is suitable for thermoplastic films such as PE, PP, and PET. The welding width is adjustable from 0.5 to 10 mm. It requires no consumables and has no open flame, making it especially suitable for clean environments such as food packaging and medical supplies.

[0004] For welding small film bags, the user holds two films and moves them along the bottom of the rotating welding head, causing the welding head to roll over the surfaces of the two films and weld them together. However, for smaller film bags, the user needs to manually hold both sides of the two films and pull them, and the pulling position is located on both sides of the welding head, which may cause damage to the welding head. This increases the labor intensity of the operator and the safety protection during the process is poor.

[0005] Therefore, it is necessary to provide an ultrasonic thin-film welding device to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides an ultrasonic film welding device that solves the problem that users hold two films and move them along the bottom of the rotating welding head, so that the rotating welding head rolls over the surfaces of the two films to weld them together. However, for smaller film bags, it is necessary to manually hold the two films on both sides and pull them, and the pulling position is located on both sides of the welding head, which may cause damage to the welding head. This increases the labor intensity of the operator during the processing and has poor safety protection.

[0007] To solve the above-mentioned technical problems, this utility model provides an ultrasonic thin film welding device, comprising: a worktable;

[0008] The two movable slots are respectively opened on both sides of the top of the worktable. Both sides of the outer surface of the worktable are fixedly installed with driving components, and threaded rods are rotatably installed inside the movable slots.

[0009] A clamping device is threadedly engaged with the outer surface of a threaded rod. The clamping device includes a slider, a threaded hole, a connecting plate, a connecting block, a rotating plate, a pressing block, and a pull rod. The slider is threadedly engaged with the outer surface of the threaded rod. The threaded hole is located in the middle of one side of the slider. The connecting plate is disposed on the top of the slider. Two connecting blocks are respectively fixedly installed on both sides of the top of the connecting plate. The rotating plate is rotatably installed between the two connecting blocks. The pressing block is fixedly installed on one side of the bottom of the rotating plate. The pull rod is fixedly installed on one side of the top of the rotating plate.

[0010] A base is located at the center of the top of the workbench, and a rotating welding block is rotatably mounted on one side of the bottom of the base.

[0011] Preferably, a support base is fixedly installed on both sides of the bottom of the workbench, and a control console is provided at the bottom between the two support bases.

[0012] Preferably, the driving component adopts a servo motor structure, and the output shaft of the driving component extends into the interior of the moving groove and is fixedly connected to one end of the threaded rod by a coupling.

[0013] Preferably, the connecting plate is made of iron, and the pressing block is a magnetic block structure.

[0014] Preferably, the top surface of the slider is provided with a mounting plate, and a groove is opened in the middle of the top of the mounting plate. A reciprocating screw is rotatably installed inside the groove, and an adjusting column is fixedly connected to one end of the reciprocating screw.

[0015] Preferably, a threaded block is fixedly installed on one side of the bottom of the connecting plate.

[0016] Preferably, the threaded block is threadedly engaged with the outer surface of the reciprocating lead screw.

[0017] Compared with related technologies, the ultrasonic thin-film welding device provided by this utility model has the following advantages:

[0018] Beneficial effects:

[0019] This invention provides an ultrasonic film welding device. Two layers of film to be welded are placed on a connecting plate with their ends aligned vertically. A rotating plate is then flipped so that a pressing block adheres to the connecting plate. The connecting plate and the pressing block clamp the film. As the output shaft of the drive unit controls the rotation of the threaded rod, the clamping device slides inside the moving groove, allowing the clamped film to pass through the bottom of the rotating welding block, enabling the rotating welding block to weld the film. This device has a simple structure and is highly practical. It eliminates the need for manual film dragging; the automated dragging of the film by the welding head reduces operational accidents and improves the safety of welding small-sized film bags. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a first embodiment of an ultrasonic thin-film welding device provided by this utility model;

[0021] Figure 2 for Figure 1 The enlarged schematic diagram at point A is shown below;

[0022] Figure 3 for Figure 2 The diagram shows the structure of the clamping device.

[0023] Figure 4 This is a schematic diagram of the structure of a second embodiment of an ultrasonic thin-film welding device provided by this utility model;

[0024] Figure 5 for Figure 4 The enlarged schematic diagram at point B is shown.

[0025] The following are the labels in the diagram: 1. Workbench, 2. Moving groove, 3. Drive component, 4. Threaded rod, 5. Clamping device, 51. Slider, 52. Threaded hole, 53. Connecting plate, 54. Connecting block, 55. Rotating plate, 56. Pressing block, 57. Tie rod, 6. Machine base, 7. Rotating welding block, 8. Support base, 9. Control console, 10. Mounting plate, 11. Slide groove, 12. Reciprocating lead screw, 13. Adjusting column, 14. Threaded block. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] First Embodiment

[0028] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the structure of a first embodiment of an ultrasonic thin-film welding device provided by this utility model; Figure 2 for Figure 1 The enlarged schematic diagram at point A is shown below; Figure 3 for Figure 2 The diagram shows the structure of the clamping device.

[0029] An ultrasonic film welding device includes: a worktable 1;

[0030] The two movable slots 2 are respectively opened on both sides of the top of the workbench 1. The two sides of the outer surface of the workbench 1 are fixedly installed with driving components 3. The movable slots 2 are rotatably installed with threaded rods 4 inside.

[0031] A clamping device 5 is threadedly engaged with the outer surface of the threaded rod 4. The clamping device 5 includes a slider 51, a threaded hole 52, a connecting plate 53, a connecting block 54, a rotating plate 55, a pressing block 56, and a pull rod 57. The slider 51 is threadedly engaged with the outer surface of the threaded rod 4. The threaded hole 52 is opened in the middle of one side of the slider 51. The connecting plate 53 is disposed on the top of the slider 51. Two connecting blocks 54 are respectively fixedly installed on both sides of the top of the connecting plate 53. The rotating plate 55 is rotatably installed between the two connecting blocks 54. The pressing block 56 is fixedly installed on one side of the bottom of the rotating plate 55. The pull rod 57 is fixedly installed on one side of the top of the rotating plate 55.

[0032] The base 6 is located at the center of the top of the workbench 1, and a rotating welding block 7 is rotatably mounted on one side of the bottom of the base 6.

[0033] Both sides of the bottom of the workbench 1 are fixedly installed with support bases 8, and a control console 9 is provided at the bottom between the two support bases 8.

[0034] The drive component 3 adopts a servo motor structure, and the output shaft of the drive component 3 extends into the interior of the moving groove 2 and is fixedly connected to one end of the threaded rod 4 through a coupling.

[0035] The connecting plate 53 is made of iron, and the pressing block 56 is a magnetic block structure.

[0036] Slider 51 is restricted by the moving groove 2 and can only slide, not rotate.

[0037] The base 6 and the rotating welding block 7 are combined to form a welding device. The rotating welding block 7 can rotate and roll over the film to weld the film on both sides. The control console 9 is equipped with two foot switches to control the height of the rotating welding block 7 and the start and stop of the rotating welding operation, which is the existing technology.

[0038] The working principle of the ultrasonic thin-film welding device provided by this utility model is as follows:

[0039] During operation, the user first holds the lever 57 and flips the rotating plate 55. The pressing block 56 overcomes the magnetic force of the connecting plate 53, and the rotating plate 55 flips. The user aligns and stacks the two films to be welded, placing the ends on the connecting plate 53. Holding the lever 57 and flipping the rotating plate 55, the pressing block 56 presses the film onto the surface of the connecting plate 53. The pressing block 56 is attracted to the surface of the connecting plate 53, maintaining the pressing effect on the film.

[0040] The output shaft of the drive unit 3 rotates, causing the threaded rod 4 to rotate. The threaded rod 4 rotates and engages the threaded hole 52 of the slider 51, causing the slider 51 to slide inside the moving groove 2. This pulls the film towards the rotating welding block 7, so that the film is welded at the bottom of the rotating welding block 7. Then, the user removes the welded film from the surface of the clamping device 5. The threaded rod 4 rotates in the opposite direction and engages the clamping device 5 to slide back to its original position, waiting for the next operation.

[0041] Compared with related technologies, the ultrasonic thin-film welding device provided by this utility model has the following advantages:

[0042] Beneficial effects:

[0043] This invention provides an ultrasonic film welding device. By placing the upper and lower ends of two films to be welded on a connecting plate 53 with their ends aligned, the rotating plate 55 is flipped so that the pressing block 56 is adsorbed onto the connecting plate 53. The connecting plate 53 and the pressing block 56 clamp the film. As the output shaft of the drive unit 3 controls the threaded rod 4 to rotate, the clamping device 5 slides inside the moving groove 2, and the clamped film passes through the bottom of the rotating welding block 7, so that the rotating welding block 7 welds the film. This device has a simple structure and is highly practical. It eliminates the need for manual dragging of the film, automatically dragging the film to be welded by the welding head, reducing the occurrence of operational accidents and improving the safety of welding small-sized film bags.

[0044] Second Embodiment

[0045] Please refer to the following: Figure 4 and Figure 5 Based on the ultrasonic film welding apparatus provided in the first embodiment of this application, the second embodiment of this application proposes another ultrasonic film welding apparatus. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0046] Specifically, the ultrasonic film welding device provided in the second embodiment of this application is different in that the top surface of the slider 51 is provided with a mounting plate 10, the top of the mounting plate 10 is provided with a groove 11, a reciprocating screw 12 is rotatably installed inside the groove 11, and an adjusting column 13 is fixedly connected to one end of the reciprocating screw 12.

[0047] A threaded block 14 is fixedly installed on one side of the bottom of the connecting plate 53.

[0048] The threaded block 14 is threadedly engaged with the outer surface of the reciprocating lead screw 12.

[0049] A threaded groove is opened in the middle of one side of the threaded block 14, and the threaded block engages with the outer surface of the reciprocating lead screw 12 through the threaded groove.

[0050] The working principle of the ultrasonic thin-film welding device provided by this utility model is as follows:

[0051] During operation, first rotate the adjusting column 13, which drives the reciprocating screw 12 to rotate. The reciprocating screw 12 rotates and engages the threaded blocks 14 on both sides of the outer surface. Under the restriction of the slide groove 11, the two threaded blocks 14 can only slide close to each other or slide far away from each other, thus adjusting the distance between the two connecting plates 53.

[0052] Compared with related technologies, the ultrasonic thin-film welding device provided by this utility model has the following advantages:

[0053] Beneficial effects:

[0054] This utility model provides an ultrasonic film welding device. The distance between two connecting plates 53 can be adjusted by reciprocating screw 12. Adjusting the distance between the two connecting plates 53 can clamp films of different widths. This device has a simple structure, strong practicality, and is easy to adjust the distance between the two connecting plates 53. It is suitable for processing films of different widths, improving the practicality and flexibility of the device.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An ultrasonic thin-film welding device, characterized in that, include: Workbench; The two movable slots are respectively opened on both sides of the top of the worktable. Both sides of the outer surface of the worktable are fixedly installed with driving components, and threaded rods are rotatably installed inside the movable slots. A clamping device is threadedly engaged with the outer surface of a threaded rod. The clamping device includes a slider, a threaded hole, a connecting plate, a connecting block, a rotating plate, a pressing block, and a pull rod. The slider is threadedly engaged with the outer surface of the threaded rod. The threaded hole is located in the middle of one side of the slider. The connecting plate is disposed on the top of the slider. Two connecting blocks are respectively fixedly installed on both sides of the top of the connecting plate. The rotating plate is rotatably installed between the two connecting blocks. The pressing block is fixedly installed on one side of the bottom of the rotating plate. The pull rod is fixedly installed on one side of the top of the rotating plate. A base is located at the center of the top of the workbench, and a rotating welding block is rotatably mounted on one side of the bottom of the base.

2. The ultrasonic thin-film welding device according to claim 1, characterized in that, Both sides of the bottom of the workbench are fixedly installed with support bases, and a control console is set at the bottom between the two support bases.

3. The ultrasonic thin-film welding device according to claim 1, characterized in that, The drive component adopts a servo motor structure, and the output shaft of the drive component extends into the interior of the moving groove and is fixedly connected to one end of the threaded rod through a coupling.

4. The ultrasonic thin-film welding device according to claim 1, characterized in that, The connecting plate is made of iron, and the pressing block is made of a magnetic block structure.

5. The ultrasonic thin-film welding device according to claim 1, characterized in that, The top surface of the slider is provided with a mounting plate, and a groove is opened in the middle of the top of the mounting plate. A reciprocating screw is rotatably installed inside the groove, and an adjusting column is fixedly connected to one end of the reciprocating screw.

6. The ultrasonic thin-film welding apparatus according to claim 5, characterized in that, A threaded block is fixedly installed on one side of the bottom of the connecting plate.

7. The ultrasonic thin-film welding apparatus according to claim 6, characterized in that, The threaded block is threadedly engaged with the outer surface of the reciprocating lead screw.

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