CN216267680U

CN216267680U - Clamp for ultrasonic protective film

Info

Publication number: CN216267680U
Application number: CN202122778692.0U
Authority: CN
Inventors: 黄德勇; 陈南阶
Original assignee: O'cell New Energy Technology Co ltd
Current assignee: O'cell New Energy Technology Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-12
Anticipated expiration: 2031-11-12

Abstract

The utility model provides a clamp of an ultrasonic protective film, which is matched with an ultrasonic welding machine for use, wherein the ultrasonic welding machine is provided with a welding head, a welding workpiece is arranged below the welding head and comprises a winding assembly, a unwinding assembly and an adjusting assembly, the unused ultrasonic welding protective film is wound on the unwinding assembly, the ultrasonic welding protective film passes through the lower part of the welding head of the ultrasonic welding machine and then is wound on the winding assembly, and the adjusting assembly controls the contact or separation of the ultrasonic welding protective film and the welding workpiece; the rolling subassembly includes first motor, first roller bearing and contact control ware, first motor and first roller bearing transmission are connected, the vertical setting of contact control ware is under first roller bearing and contact the bottom that the ultrasonic bonding protection film formed the spool to the rotational speed of control first motor. The utility model improves the stability and efficiency in the production process and also avoids the waste of the ultrasonic welding protective film.

Description

Clamp for ultrasonic protective film

Technical Field

The utility model relates to the technical field of ultrasonic welding, in particular to a clamp for an ultrasonic protective film.

Background

Ultrasonic welding is performed by transmitting a high-frequency vibration wave to the surfaces of two objects to be welded, and rubbing the surfaces of the two objects against each other under pressure to form a fusion between the molecular layers. The converted high-frequency electrical energy is converted again into mechanical motion of the same frequency by the transducer, and the mechanical motion is then transmitted to the welding head by a set of amplitude transformer devices which can change the amplitude. The horn transmits the received vibrational energy to the joint of the work pieces to be welded, where the vibrational energy is frictionally converted to thermal energy to melt the plastic. Ultrasound can be used not only to weld rigid thermoplastics, but also to process fabrics and films.

The ultrasonic welding protective film is a special protective film for ultrasonic lamination protection, has excellent practical performance, prevents ultrasonic from damaging an embossed shell, can effectively improve an ultrasonic lamination process, and has high reusability with the use frequency more than 10 times that of a common adhesive film. The ultrasonic welding protective film can be used for effectively improving the problems of the ultrasonic welding machine for pressing, welding and protecting electronic appliances, toys, automobile accessories, plastics and other products such as oil-sprayed plastic shells, ABS plastic shells, PC plastic shells, ABS + PC plastic shells, nylon plastic shells and the like and the appearance in the ultrasonic pressing aspect according to different pressing force, frequency and pressing time adjusted by ultrasonic waves and different use times.

In the current common technical means, a winch is adopted to install an ultrasonic welding protective film, the tail end of the ultrasonic welding protective film is uncoiled and then laid on the surface of a workpiece to be processed, and then the ultrasonic welding protective film is manually pulled to extend. When the ultrasonic welding head is used for welding once, an operator needs to pull the ultrasonic welding head once; meanwhile, the protective film needs to be lifted up, the welded workpieces need to be taken out by hand at the other side, and then the workpieces which are not welded need to be replaced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a clamp for an ultrasonic protective film, which solves the problems that the ultrasonic protective film needs to be pulled manually and the distance between the ultrasonic protective film and a product needs to be adjusted manually in the prior art.

According to the embodiment of the utility model, the clamp of the ultrasonic protective film is matched with an ultrasonic welding machine for use, the ultrasonic welding machine is provided with a welding head, a welding workpiece is arranged below the welding head and comprises a winding component, a unwinding component and an adjusting component, the unwinding component and the winding component are respectively arranged at the front end and the rear end of the ultrasonic welding machine, the unwinding component is wound with the unused ultrasonic welding protective film, the ultrasonic welding protective film passes through the lower part of the welding head of the ultrasonic welding machine and then is wound on the winding component, and the adjusting component controls the contact or separation of the ultrasonic welding protective film and the welding workpiece;

the winding component comprises a first motor, a first roller and a contact controller, the first motor is connected with the first roller in a transmission mode, the contact controller is vertically arranged under the first roller and contacts the bottom of a reel formed by the ultrasonic welding protective film, and the contact controller is electrically connected with the first motor, so that the rotating speed of the first motor is controlled.

Preferably, the touch controller comprises a sliding rheostat, a movable rod, a first spring and a rotating wheel, wherein the movable rod is a vertically arranged straight rod, and the rotating wheel is vertically arranged at the top of the movable rod; the sliding rheostat is a vertically arranged bar-shaped rheostat and comprises two fixed end connectors and a sliding end connector, one end of the sliding rheostat is inserted into the blind hole, the sliding end connector is fixedly connected with the inner side of the blind hole, the fixed end connector and the sliding end connector at the top end of the sliding rheostat are connected in series into a power circuit of a first motor, and a first spring is arranged between the end of the sliding rheostat located in the blind hole and the inner end face of the blind hole.

Preferably, the adjusting assembly comprises a fixing sleeve, a tension spring, a sliding rod and a guide wheel, the fixing sleeve is a bar-shaped rod and is vertically arranged at the bottom of the ultrasonic welding machine and fixedly connected with the welding head, two fixing sleeves are arranged on each side of the welding head in parallel corresponding to the front end and the rear end of the moving direction of the ultrasonic welding protective film, a vertical mounting hole is formed in the bottom end of the fixing sleeve, the sliding rod is coaxially arranged in the mounting hole, the tension spring is positioned in the mounting hole and sleeved on the outer side of the sliding rod, one end of the tension spring is fixed at the top end of the sliding rod, and the other end of the tension spring is fixed at the bottom end of the mounting hole; the guide wheels are cylinders which are horizontally arranged, are respectively arranged on two sides of the ultrasonic welding machine, and are rotatably connected between the two sliding rods which are positioned on the same side of the welding head.

Preferably, a travel switch is further connected in series in the power supply circuit of the first motor, and the travel switch is opened when the welding head of the ultrasonic welding machine moves downwards and closed when the welding head resets.

Preferably, the unwinding assembly comprises a second roller and a base, and the base is respectively rotatably connected with two ends of the second roller.

Preferably, the bottom end of the sliding rod is provided with a rubber pad.

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

1. through the automatic pulling ultrasonic membrane protection film of coiling mechanism and remove, cancelled operating personnel and removed this step of pulling ultrasonic welding protection film, in the middle of the assembly line production, cancelled an operating procedure, to production efficiency promotion showing.

2. Through the touch controller, the rotating speed of the first motor is reduced under the influence of the sliding rheostat when the first rolling shaft continuously rolls up the ultrasonic welding protective film, so that the ultrasonic welding protective film pulled in unit time always keeps the use amount of a product just welded once under the condition of keeping the angular speed unchanged, and the ultrasonic welding protective film is prevented from being wasted due to too fast rotation.

3. By using the adjusting assembly, when the welding head moves upwards after ultrasonic welding is finished, the adjusting assembly also pulls the film upwards to reserve a space, and an operator does not need to lift the film and grab a product. When the utility model is used, the product can be taken out or installed more quickly, and the scrappage of the product caused by installation dislocation is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the unwinding assembly of the present invention.

Fig. 3 is a schematic top view of an adjustment assembly and weld head of the present invention.

Fig. 4 is a schematic view of the internal structure of the adjusting assembly of the present invention.

Fig. 5 is a schematic view of the internal structure of the winding assembly of the present invention.

Fig. 6 is a schematic diagram of a sliding varistor circuit according to the present invention.

Fig. 7 is a schematic view of the adjustment assembly of the present invention after the slide bar has been lifted from the bottom.

In the above drawings: 1. a first motor; 2. a first roller; 3. a movable rod; 4. a rotating wheel; 5. a first spring; 6. a slide rheostat; 7. a sliding end joint; 8. a first base; 9. a second base; 10. a second roller; 11. fixing a sleeve; 12. a tension spring; 13. a slide bar; 14. a guide wheel; 15. a welding head; 16. the end is fixed with a joint.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

As shown in fig. 1, an embodiment of the present invention provides an ultrasonic protective film fixture, which is used in combination with an ultrasonic welding machine, the ultrasonic welding machine is provided with a welding head 15, a welding workpiece is arranged below the welding head 15, the ultrasonic welding machine includes a workbench, a guide rod and the welding head 15, the guide rod is arranged on the workbench, the welding head 15 is slidably connected to the guide rod and can slide up and down along the guide rod, a product to be welded is placed on the workbench, the ultrasonic protective film fixture further includes a winding assembly, a winding-out assembly and an adjusting assembly, the winding-out assembly and the winding assembly are respectively arranged at the front end and the rear end of the ultrasonic welding machine, and the adjusting assembly is arranged corresponding to the ultrasonic welding machine; the roll-out component is wound with an unused ultrasonic welding protective film, the ultrasonic welding protective film is recycled to the roll-up component after being processed at the bottom of the ultrasonic welding machine, the adjusting component controls the ultrasonic welding protective film to be in contact with or separated from the welding machine, and the height of the ultrasonic welding machine protective film relative to a workpiece needs to be adjusted up and down continuously in the production process so as to adapt to production process steps.

As shown in fig. 5, the rolling component includes first motor 1, first roller bearing 2 and contact controller, first motor 1 and the coaxial setting of first roller bearing 2, and the first roller bearing 2 of output shaft drive of first motor 1 rotates, and first motor 1 is exchanging three phase motor, first roller bearing 2 is used for rolling ultrasonic bonding protection film, and the rotatory winding of ultrasonic bonding protection film is on first roller bearing 2, the vertical setting of contact controller is under first roller bearing 2 to contact the bottom of the last ultrasonic bonding protection film formation spool of first roller bearing 2, and contact controller and 1 electric connection of first motor, thereby control the rotational speed of first motor 1.

The power supply circuit of the first motor 1 is also connected in series with a travel switch, the travel switch is used for controlling the starting and stopping states of the first motor 1, an ultrasonic welding protective film is prevented from being pulled during welding, the travel switch is fixed on a base of an ultrasonic welding machine, the travel switch is disconnected when a welding head 15 of the ultrasonic welding machine moves downwards, and the travel switch is closed when the welding head 15 resets. Two ends of the first roller 2 are rotatably connected with a first base 8. The first base 8 is fixedly connected with the first motor 1.

As shown in fig. 5, the touch controller preferably includes a slide rheostat 6, a movable rod 3, a first spring 5 and a rotating wheel 4, wherein the movable rod 3 is a straight rod vertically arranged, in this example, a cylindrical structure is provided, and a flexible material is installed on the contour surface of the rotating wheel 4, so that when the flexible material is in contact with the ultrasonic welding protective film, the flexible material can be prevented from damaging the ultrasonic welding protective film, and secondary use is not affected. The rotating wheel 4 is vertically arranged at the top of the movable rod 3, a U-shaped groove which penetrates through the movable rod 3 from front to back is formed in the top of the movable rod 3, the axis of the rotating wheel 4 is rotatably connected to the side wall of the U-shaped groove, and the highest point of the rotating wheel 4 is higher than that of the movable rod 3, so that the ultrasonic welding protective film on the first rolling shaft 2 is only in contact with the rotating wheel 4; the bottom of the movable rod 3 is coaxially provided with a strip-shaped blind hole which is a circular hole in the example, the slide rheostat 6 is a vertically arranged strip rheostat and comprises two fixed end connectors and a slide end connector 7, one end of the slide rheostat 6 is inserted into the blind hole, and the downward end of the slide rheostat 6 is used for fixed connection; the sliding end connector 7 is fixedly connected with the inner side of the blind hole, a through hole is formed in the side wall of the blind hole, a connector is fixedly installed in the through hole, one end of the connector is fixedly connected with the sliding end connector 7 in the through hole, and the other end of the connector is connected with an electric wire, so that the sliding end connector 7 can be fixed, and the electric connection effect is achieved; a fixed end joint 16 at the top end of the slide rheostat 6 is connected with a lead, the lead is tightly attached to the outer surface of the slide rheostat 6 by an insulating tape and vertically extends downwards, the influence on the sliding of the slide end joint 7 is avoided, the lead is prevented from being damaged by friction by paying attention to the fact that a safety distance is reserved between the lead and a blind hole, and the lead is connected with one end of the slide end joint 7 in series in a power circuit of the first motor 1 after coming out of the blind hole; the first spring 5 is arranged between the end of the slide rheostat 6 positioned in the blind hole and the inner end surface of the blind hole; the current diagram of the slide varistor 6 is shown in fig. 6.

When the diameter of the ultrasonic welding protective film on the first roller 2 is larger and larger, the height of the rotating wheel 4 contacted with the first roller is reduced, the movable rod 3 compresses the first spring 5 while moving downwards, the sliding end joint 7 also moves downwards, the farther the distance from the fixed joint at the upper end is, the larger the resistance is, and when the sliding rheostat 6 increases the resistance along with the diameter of the welding machine protective film on the first roller 2, the rotating speed of the first motor 1 is reduced.

As shown in fig. 3 and 4, as preferred, the adjusting part includes fixed cover 11, extension spring 12, slide bar 13, leading wheel 14, fixed cover 11 is the bar pole, fixed cover 11 is vertical to be set up and corresponds the front and back both ends of ultrasonic welding protection film moving direction in ultrasonic welding machine bottom, fixed cover 11 and ultrasonic welding machine's bonding tool 15 fixed connection, bonding tool 15 every side is provided with two fixed covers 11 side by side, fixed cover 11 bottom is provided with vertical mounting hole, the mounting hole is the round hole, the coaxial setting of slide bar 13 is in the mounting hole on fixed cover 11, extension spring 12 overlaps and is located the mounting hole and overlaps and establish in the slide bar 13 outside, and the top at slide bar 13 is fixed to the one end of extension spring 12, and the other end is installed in fixed cover 11 bottom. The guide wheels 14 are horizontally arranged cylinders, are respectively arranged on two sides of the ultrasonic welding machine, and are rotatably connected between the sliding rods 13 of the two fixing sleeves 11 on the same side of the welding head 15.

As shown in fig. 7, when the welding head 15 moves downwards to contact with the workpiece to be welded, the guide wheel 14 connected to the bottom of the sliding rod 13 also descends synchronously, so that the ultrasonic welding protective film falls to cover the product to be welded, and when the welding head 15 is lifted after welding is finished, the guide wheel 14 also rises upwards together to carry the ultrasonic welding protective film. In order to avoid the damage caused by the rigid contact between the adjusting component and the table top of the welding machine, the tension spring 12 is arranged to play a role in buffering. Preferably, the bottom end of the sliding rod 13 is provided with a rubber pad to avoid scratches after contact.

As shown in fig. 2, the unwinding assembly preferably comprises a second roller 10 and a second base 9, and the second base 9 is rotatably connected to two ends of the second roller 10.

The working principle is as follows: an unused ultrasonic welding protective film is wound on the second roller 10 of the winding assembly, and when in use, the ultrasonic welding protective film is lapped on the guide wheel 14, and then the tail end of the ultrasonic welding protective film is fixed on the first roller 2 of the winding assembly. When the ultrasonic welding machine is powered on, a travel switch connected with the welding head 15 is communicated with a circuit of the first motor 1, the first rolling shaft 2 starts to rotate, the ultrasonic welding protective film starts to be gradually transferred to the winding assembly, a new ultrasonic welding protective film is replaced below the welding head 15, the travel switch is closed when the welding head 15 starts to descend, the first motor 1 stops rotating, and the travel switch is upwards reset after the welding head 15 descends to a working position to complete welding, so that the cycle is repeated. After continuous work, the ultrasonic welding protective films on the first roller 2 are more and more, the diameters of the ultrasonic welding protective films are larger and larger, the height of the touch control assembly arranged right below the first roller 2 is gradually reduced by the ultrasonic welding protective films, and the resistance value arranged in the touch control assembly is also larger and larger, so that the rotating speed of the first motor 1 is continuously adjusted to just drive the size of the ultrasonic welding protective films required for welding once.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides an anchor clamps of ultrasonic wave protection film, anchor clamps cooperation ultrasonic welding machine uses, ultrasonic welding machine is equipped with the bonding tool, the bonding tool below is welding workpiece, its characterized in that: the device comprises a winding assembly, a unwinding assembly and an adjusting assembly, wherein the unwinding assembly and the winding assembly are respectively arranged at the front end and the rear end of an ultrasonic welding machine, an unused ultrasonic welding protective film is wound on the unwinding assembly, the ultrasonic welding protective film is wound on the winding assembly after passing through the lower part of a welding head of the ultrasonic welding machine, and the adjusting assembly controls the contact or separation of the ultrasonic welding protective film and a welding workpiece;

2. The ultrasonic pellicle fixture of claim 1, wherein: the touch controller comprises a slide rheostat, a movable rod, a first spring and a rotating wheel, wherein the movable rod is a vertically arranged straight rod, and the rotating wheel is vertically arranged at the top of the movable rod; the sliding rheostat is a vertically arranged bar-shaped rheostat and comprises two fixed end connectors and a sliding end connector, one end of the sliding rheostat is inserted into the blind hole, the sliding end connector is fixedly connected with the inner side of the blind hole, the fixed end connector and the sliding end connector at the top end of the sliding rheostat are connected in series into a power circuit of a first motor, and a first spring is arranged between the end of the sliding rheostat located in the blind hole and the inner end face of the blind hole.

3. The ultrasonic pellicle fixture of claim 2, wherein: the adjusting assembly comprises a fixing sleeve, a tension spring, a sliding rod and a guide wheel, wherein the fixing sleeve is a strip-shaped rod and is vertically arranged at the bottom of the ultrasonic welding machine and fixedly connected with a welding head, two fixing sleeves are arranged on each side of the welding head in parallel corresponding to the front end and the rear end of the moving direction of the ultrasonic welding protective film, a vertical mounting hole is formed in the bottom end of the fixing sleeve, the sliding rod is coaxially arranged in the mounting hole, the tension spring is positioned in the mounting hole and sleeved outside the sliding rod, one end of the tension spring is fixed at the top end of the sliding rod, and the other end of the tension spring is fixed at the bottom end of the mounting hole; the guide wheels are cylinders which are horizontally arranged, are respectively arranged on two sides of the ultrasonic welding machine, and are rotatably connected between the two sliding rods which are positioned on the same side of the welding head.

4. The ultrasonic pellicle fixture of claim 3, wherein: and a travel switch is also connected in series in a power supply circuit of the first motor, the travel switch is switched off when a welding head of the ultrasonic welding machine moves downwards, and the travel switch is switched on when the welding head resets.

5. The ultrasonic pellicle fixture of claim 4, wherein: the unwinding assembly comprises a second rolling shaft and a base, and the base is respectively connected with two ends of the second rolling shaft in a rotating mode.

6. The ultrasonic pellicle fixture of claim 5, wherein: the bottom end of the sliding rod is provided with a rubber pad.