CN215880307U

CN215880307U - Welding pressure lever and ultrasonic welding device

Info

Publication number: CN215880307U
Application number: CN202120738955.2U
Authority: CN
Inventors: 黄成龙; 张立; 李�浩
Original assignee: Guangzhou Liangzi Laser Intelligent Equipment Co ltd
Current assignee: Guangzhou Liangzi Laser Intelligent Equipment Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2022-02-22
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a welding pressure lever, which comprises a supporting rotating shaft, a welding pressure shaft and a locking structure, wherein the supporting rotating shaft is arranged on the welding pressure shaft; the welding pressing shaft can be sleeved outside the supporting rotating shaft in a manner of moving along the axial direction of the supporting rotating shaft, and a welding pressing strip extending along the circumferential direction of the welding pressing shaft is arranged outside the welding pressing shaft; the locking structure is used for locking the welding pressing shaft on the supporting rotating shaft. The utility model aims to provide a welding pressure bar, which can adjust the position of the welding pressure bar in the using process and has high flexibility so as to be suitable for various application conditions. The utility model also discloses an ultrasonic welding device.

Description

Welding pressure lever and ultrasonic welding device

Technical Field

The utility model relates to the field of ultrasonic welding equipment, in particular to a welding pressure lever and an ultrasonic welding device.

Background

At present, ultrasonic welding is widely applied to the edge sealing operation in the field of mask production, in particular to the edge sealing of the periphery of mask cloth and the edge sealing treatment of the periphery of a mask layering (the mask layering can be a nose bridge strip and the like) of the mask cloth; the existing ultrasonic welding equipment comprises a pressure bar and an ultrasonic generator, wherein the pressure bar is fixed with a pressure strip, the ultrasonic generator is matched with the pressure strip to extrude the mask cloth during processing, and the ultrasonic generator emits ultrasonic waves, so that the multiple layers of mask cloth are bonded together; however, the existing pressure bar cannot be moved after being arranged on a rack of ultrasonic welding equipment, and the installed welding pressure bar is not suitable for use under the conditions of face to mask replacement size or mask pressure bar placement position adjustment and the like, and the flexibility is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a welding pressure bar, which can adjust the position of the welding pressure bar during the use process, and has high flexibility, so as to be suitable for various application situations.

The second purpose of the utility model is to provide an ultrasonic welding device using the welding pressure rod.

One of the purposes of the utility model is realized by adopting the following technical scheme:

a welding pressure lever comprises a supporting rotating shaft, a welding pressure shaft and a locking structure; the welding pressing shaft can be sleeved outside the supporting rotating shaft in a manner of moving along the axial direction of the supporting rotating shaft, and a welding pressing strip extending along the circumferential direction of the welding pressing shaft is arranged outside the welding pressing shaft; the locking structure is used for locking the welding pressing shaft on the supporting rotating shaft.

Further, the locking structure comprises a locking screw and a locking screw hole; the locking screw hole is formed in the welding pressing shaft and penetrates through the inner surface and the outer surface of the welding pressing shaft; and the rod part of the locking screw penetrates through the locking screw hole and is used for abutting against the supporting rotating shaft.

Furthermore, a plurality of pressing teeth which are sequentially arranged along the extending direction of the welding pressing strip are formed on the welding pressing strip.

Furthermore, the number of the welding pressing strips is two, and the two welding pressing strips are sequentially arranged at intervals along the axial direction of the welding pressing shaft.

Furthermore, the welding pressure bar also comprises two pressure blocks positioned between the two welding pressure bars; the two pressing blocks are arranged at intervals along the extending direction of the welding pressing strip.

The second purpose of the utility model is realized by adopting the following technical scheme:

an ultrasonic welding device comprises a frame, an ultrasonic generator, a rotating motor and the welding pressure rod; the supporting rotating shaft is pivoted on the rack; the ultrasonic generator is arranged below the welding pressing shaft and forms a feeding channel for the mask to pass through at intervals with the welding pressing bar; the ultrasonic generator is also used for matching with the welding pressing strip to tightly press the mask penetrating through the feeding channel; the rotating motor is in transmission connection with the supporting rotating shaft and is used for driving the supporting rotating shaft to rotate.

Further, the ultrasonic welding device further comprises a fan; the fan faces the ultrasonic generator.

Further, the rack comprises a rack body, a mounting block, a spring and a screw rod; the frame body is provided with a vertically extending waist-shaped groove; the mounting block can be movably mounted in the waist-shaped groove along the extension direction of the waist-shaped groove; the top surface of the frame body is downwards provided with a screw hole communicated with the waist-shaped groove; the screw rod is in threaded connection with the screw hole and extends into the waist-shaped groove; two ends of the spring are respectively arranged on the part of the screw rod extending into the waist-shaped groove and the top end of the mounting block and are used for providing elastic stress for promoting the mounting block to move downwards; the supporting rotating shaft is pivoted on the mounting block.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the welding pressing bar is arranged on the welding pressing shaft by arranging the welding pressing shaft capable of moving along the axial direction of the welding pressing shaft on the supporting rotating shaft, so that after the size of the mask is changed or the position of the mask pressing bar is adjusted, the welding position can be adjusted by moving the welding pressing shaft according to actual needs, the use is flexible, the welding pressing shaft is tightly pressed against the supporting rotating shaft after a locking screw matched with a locking structure passes through a locking screw hole, and the welding pressing shaft can be fixed on the supporting rotating shaft, namely, the welding pressing bar is fixed on the supporting rotating shaft, so that the welding pressing bar can be continuously used for pressing mask cloth so as to be continuously applied to edge sealing operation of the mask.

Drawings

FIG. 1 is a schematic view of an ultrasonic welding apparatus according to the present invention;

FIG. 2 is a schematic structural diagram of the welding rod of the present invention.

In the figure: 10. a support shaft; 20. welding a pressing shaft; 30. locking the screw hole; 40. welding the pressing strips; 50. a frame; 51. a frame body; 52. mounting blocks; 53. a spring; 54. a screw; 60. an ultrasonic generator; 70. a fan; 80. a rotating electric machine.

Detailed Description

As shown in fig. 1-2, a welding pressure bar comprises a support rotating shaft 10, a welding pressure shaft 20 and a locking structure; when in use, the supporting spindle 10 is pivoted to the external frame 50; the welding pressing shaft 20 can be sleeved outside the supporting rotating shaft 10 in a manner of moving along the axial direction of the supporting rotating shaft 10, and the welding pressing strip 40 extending along the circumferential direction of the welding pressing shaft 20 is arranged outside the welding pressing shaft 20, so that when the welding pressing shaft 20 moves relative to the supporting rotating shaft 10, the position of the welding pressing strip 40 can be adjusted, the welding pressing strip 40 can be adjusted to the position capable of corresponding to the mask to be welded according to the condition that the size of the mask is changed or the position of the mask pressing strip is adjusted, and the flexibility is high; the locking structure is used for locking the welding pressing shaft 20 on the supporting rotating shaft 10, and it can be understood that after the locking structure is used for locking the welding pressing shaft 20 on the supporting rotating shaft 10, the welding pressing shaft 20 cannot move relative to the supporting rotating shaft 10, and further the welding pressing strip 40 is fixed on the supporting rotating shaft 10, so that the welding pressing strip 40 can be continuously used for pressing the gauze mask along with the rotation of the supporting rotating shaft 10, and is further applied to the edge sealing operation of the gauze mask.

Of course, the above-mentioned locking structure may adopt this embodiment, specifically, the locking structure includes a plurality of slots that are provided on the support rotating shaft 10 and are sequentially arranged at intervals along the axial direction of the support rotating shaft 10, and a latch that is fixed on the welding pressing shaft 20, and the latch is latched with any one of the slots; like this, can make latch and joint complex draw-in groove break away from under external force is stirred, remove welding last item 20 smoothly to can make latch and another draw-in groove reform joint, lock welding last item 20, however, this kind of mode can only be fixed distance to welding last item 20's removal distance, promptly, this fixed distance is the distance between two arbitrary draw-in grooves, and the flexibility is low.

In this embodiment, the locking structure includes a locking screw and a locking screw hole 30; the locking screw hole 30 is formed on the welding pressing shaft 20 and penetrates through the inner surface and the outer surface of the welding pressing shaft 20, wherein the inner surface and the outer surface of the welding pressing shaft 20 refer to the inner surface and the outer surface thereof, the inner surface of the welding pressing shaft 20 refers to the surface thereof facing the central axis thereof, and the outer surface of the welding pressing shaft 20 refers to the surface thereof facing away from the central axis thereof; the rod part of the locking screw penetrates through the locking screw hole 30 and is used for tightly abutting against the support rotating shaft 10; it should be noted here that when the shaft of the locking screw abuts against the supporting rotation shaft 10, the welding pressure shaft 20 is fixed on the supporting rotation shaft 10, and meanwhile, when the locking screw is turned to loosen the supporting rotation shaft 10, the welding pressure shaft 20 can be moved; thus, the locking and unlocking operation of the welding pressing shaft 20 is convenient; meanwhile, the locking structure can lock the welding pressing shaft 20 at any position on the supporting rotating shaft 10, and the flexibility is high.

Specifically, the weld bead 40 is formed with a plurality of pressing teeth arranged in order along the extending direction thereof.

Preferably, the number of the welding pressing strips 40 is two, the two welding pressing strips 40 are sequentially arranged at intervals along the axial direction of the welding pressing shaft 20, in practical application, the distance between the two welding pressing strips 40 can be set according to the width of the mask pressing strip, and the mask pressing strip can be placed in the mask pressing strip as a reference, so that the upper side and the lower side of the mask pressing strip can be simultaneously sealed, and the processing efficiency is improved.

More preferably, the welding pressure bar further comprises two pressure blocks positioned between the two welding pressure bars 40; two briquetting are arranged along the extending direction interval of welding layering 40, and it is worth mentioning that, can set up the distance between two briquetting according to the length of gauze mask layering to place as the reference between two briquetting in the gauze mask layering can, at this moment, when carrying out the banding about the gauze mask layering, can also carry out the banding about the gauze mask layering, in order to further improve machining efficiency.

The utility model also discloses an ultrasonic welding device, which comprises a frame 50, an ultrasonic generator 60, a rotating motor 80 and the welding pressure rod; the supporting rotating shaft 10 is pivoted on the frame 50; the supporting rotating shaft 10 is pivoted on the frame 50; the ultrasonic generator 60 is arranged below the welding pressing shaft 20 and forms a feeding channel for the mask to pass through at an interval with the welding pressing bar 40; the ultrasonic generator 60 is also used for matching with the welding batten 40 to press the mask passing through the feeding channel, and it can be understood that a pressing surface is formed on the ultrasonic generator 60, and the pressing surface and the batten are matched to press the mask; the rotating motor 80 is in transmission connection with the supporting rotating shaft 10 and is used for driving the supporting rotating shaft 10 to rotate; therefore, when the mask passes through the feeding channel, the ultrasonic generator 60 sends ultrasonic waves to the mask, and under the matching action of the welding pressing strips 40 and the ultrasonic generator 60, multiple layers of mask cloth are bonded together, so that edge sealing of the mask is realized.

Further, the ultrasonic welding apparatus further includes a fan 70; the fan 70 faces the ultrasonic generator 60, and the fan 70 supplies air to the ultrasonic generator 60 to dissipate heat of the ultrasonic generator 60.

In this embodiment, the frame 50 includes a frame body 51, a mounting block 52, a spring 53, and a screw 54; the frame body 51 is provided with a vertically extending waist-shaped groove; the mounting block 52 is movably mounted in the waist-shaped groove along the extending direction of the waist-shaped groove; the top surface of the frame body 51 is downwards provided with a screw hole communicated with the waist-shaped groove; the screw rod 54 is in threaded connection with the screw hole and extends into the waist-shaped groove; the spring 53 is mounted at both ends thereof on the portion of the screw 54 extending into the waist-shaped groove and the top end of the mounting block 52, respectively, and serves to provide elastic stress for urging the mounting block 52 to move downward; the supporting shaft 10 is pivoted on the mounting block 52; therefore, when the masks with different thicknesses are used, the masks are pushed upwards and compress the spring 53, so that the masks can smoothly enter the feeding channel, and the application range is wide; meanwhile, the elastic stress of the spring 53 ensures that the mounting block 52 can be matched with the ultrasonic generator 60 to press the mask; furthermore, the compression degree of the spring 53 can be adjusted by rotating the screw 54, thereby adjusting the pressure on the mask.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A welding pressure bar is characterized in that: comprises a supporting rotating shaft, a welding pressing shaft and a locking structure; the welding pressing shaft can be sleeved outside the supporting rotating shaft in a manner of moving along the axial direction of the supporting rotating shaft, and a welding pressing strip extending along the circumferential direction of the welding pressing shaft is arranged outside the welding pressing shaft; the locking structure is used for locking the welding pressing shaft on the supporting rotating shaft.

2. The welding strut of claim 1, wherein: the locking structure comprises a locking screw and a locking screw hole; the locking screw hole is formed in the welding pressing shaft and penetrates through the inner surface and the outer surface of the welding pressing shaft; and the rod part of the locking screw penetrates through the locking screw hole and is used for abutting against the supporting rotating shaft.

3. The welding strut of claim 1, wherein: a plurality of pressing teeth which are sequentially arranged along the extending direction of the welding pressing strip are formed on the welding pressing strip.

4. The welding strut of claim 1, wherein: the number of the welding pressing strips is two; the two welding pressing strips are arranged along the axial direction of the welding pressing shaft and are spaced from each other.

5. The welding strut of claim 4, wherein: the welding pressure bar also comprises two pressure blocks positioned between the two welding pressure bars; the two pressing blocks are arranged at intervals along the extending direction of the welding pressing strip.

6. An ultrasonic welding device, characterized in that: comprising a machine frame, an ultrasonic generator, a rotating electrical machine and a welding strut according to any one of claims 1 to 5; the supporting rotating shaft is pivoted on the rack; the ultrasonic generator is arranged below the welding pressing shaft and forms a feeding channel for the mask to pass through at intervals with the welding pressing bar; the ultrasonic generator is also used for matching with the welding pressing strip to tightly press the mask penetrating through the feeding channel; the rotating motor is in transmission connection with the supporting rotating shaft and is used for driving the supporting rotating shaft to rotate.

7. An ultrasonic welding apparatus as defined in claim 6, wherein: the ultrasonic welding device also comprises a fan; the fan faces the ultrasonic generator.

8. An ultrasonic welding apparatus as defined in claim 6, wherein: the rack comprises a rack body, a mounting block, a spring and a screw rod; the frame body is provided with a vertically extending waist-shaped groove; the mounting block can be movably mounted in the waist-shaped groove along the extension direction of the waist-shaped groove; the top surface of the frame body is downwards provided with a screw hole communicated with the waist-shaped groove; the screw rod is in threaded connection with the screw hole and extends into the waist-shaped groove; two ends of the spring are respectively arranged on the part of the screw rod extending into the waist-shaped groove and the top end of the mounting block and are used for providing elastic stress for promoting the mounting block to move downwards; the supporting rotating shaft is pivoted on the mounting block.