Anti-abrasion device and ultrasonic plastic welding machine

Abstract

The utility model discloses an anti-abrasion device and an ultrasonic wave plastic welding machine, the anti-abrasion device is applied to the ultrasonic wave welding machine, the ultrasonic wave welding machine comprises an upper die and a lower die, the anti-abrasion device comprises an automatic film rolling machine and a controller, the automatic film rolling machine is used for conveying a glue film to the ultrasonic wave welding machine, and the controller is connected with the automatic film rolling machine. A conveyed adhesive film is arranged between the upper die and the lower die in a penetrating mode, the number of the controllers is preset, and the controllers are configured to control the automatic film rolling machine to replace the adhesive film when the welding number of the ultrasonic welding machine is equal to the preset number. The ultrasonic plastic welding machine comprises an ultrasonic welding machine and the anti-abrasion device, a mounting groove with a downward opening is formed in the bottom end of the ultrasonic welding machine, and the anti-abrasion device is embedded in the mounting groove. According to the utility model, the problems of high replacement cost, low film replacement efficiency and low production efficiency of the existing adhesive film can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic welding, in particular to an anti-wear device and an ultrasonic plastic welding machine. Background Art

[0002] The welding principle of ultrasonic plastic welding machine is to generate 20KHz (or 15KHz) high-voltage, high-frequency signal, and convert the signal into high-frequency mechanical vibration through the transducer system, so that the plastic parts vibrate, rub and heat to achieve the melting welding effect.

[0003] Currently, in order to prevent the ultrasonic plastic welding machine from scratching the plastic parts during operation, it is usually necessary to place a layer of plastic film between the contact surface of the upper mold and the plastic part. However, the plastic film needs to be manually placed every time the ultrasonic plastic welding machine works, which has high labor costs and low replacement efficiency, reducing the production efficiency of plastic parts.

[0004] For some plastic parts that do not require frequent film replacement, workers can wrap the upper mold with film so that the film can be reused several times. However, after the film is worn out, workers still need to remove the damaged film and re-wrap it with new film, which affects the production efficiency of the plastic parts. Utility Model Content

[0005] The utility model aims to provide an anti-scratch device and an ultrasonic plastic welding machine to solve the technical problems of high film replacement cost, low film replacement efficiency and low production efficiency in the prior art.

[0006] The technical solutions adopted to solve the above technical problems are:

[0007] The utility model discloses an anti-wear device, which is applied to an ultrasonic welding machine. The ultrasonic welding machine includes an upper mold and a lower mold. The anti-wear device includes an automatic film rolling machine and a controller. The automatic film rolling machine is used to convey an adhesive film to the ultrasonic welding machine. The conveyed adhesive film is passed between the upper mold and the lower mold. The controller is provided with a preset number. The controller is configured to control the automatic film rolling machine to replace the adhesive film when the number of welding operations of the ultrasonic welding machine is equal to the preset number.

[0008] The present invention has at least one beneficial effect: the automatic film roll conveys film to the ultrasonic welder, which is interposed between the upper and lower molds. When the ultrasonic welder moves the upper mold downward to weld the plastic part, the film is positioned between the upper mold and the plastic part, thereby preventing the upper mold from scratching the plastic part. A controller automatically starts and stops the automatic film roll, allowing it to automatically deliver new film, eliminating the need for manual replacement by workers. This saves labor costs for plastic parts, improves film replacement efficiency, and thus enhances plastic part production efficiency.

[0009] The controller is set with a preset number. When the number of plastic parts welded by the ultrasonic welder reaches the preset number, the controller automatically controls the automatic film roll machine to start, thereby automatically replacing the plastic film between the upper mold and the lower mold after welding multiple plastic parts. This is convenient for welding some plastic parts that do not require high surface finish, reducing the frequency of film replacement, improving the welding efficiency of plastic parts, and saving the cost of film use.

[0010] As a further improvement of the above technical solution, the controller is provided with a preset length, and the controller is configured to control the automatic film rolling machine to replace the film to the preset length.

[0011] As a further improvement of the above technical solution, the ultrasonic welder is connected to a sensor, the sensor is signal-connected to the controller, and the welding head of the ultrasonic welder is connected to a touch piece opposite to the sensor.

[0012] As a further improvement of the above technical solution, the controller signal is connected to a control panel, the control panel is provided with a display screen and buttons, and the display screen is used to display the preset number and the preset length of the film.

[0013] As a further improvement of the above technical solution, the automatic film rolling machine includes a feeding mechanism and a receiving mechanism, one end of the film is connected to the feeding mechanism, and the other end of the film is connected to the receiving mechanism, and the upper mold and the lower mold are located between the feeding mechanism and the receiving mechanism.

[0014] As a further improvement of the above technical solution, the material receiving mechanism includes a film-pulling motor, a first mounting seat, a film-pulling shaft and a material-receiving rod. The output end of the film-pulling motor passes through the first mounting seat and is transmission-connected to the film-pulling shaft. The other end of the film passes around the film-pulling shaft and is connected to the material-receiving rod. The material-receiving rod is rotatably connected to the first mounting seat.

[0015] As a further improvement of the above technical solution, the material receiving mechanism also includes a clamping shaft, a connecting rod is provided between the clamping shaft and the first mounting seat, the opposite ends of the connecting rod are respectively rotatably connected to the clamping shaft and the first mounting seat, and a fixing part is provided between the connecting rod and the first mounting seat.

[0016] As a further improvement of the above technical solution, the feeding mechanism includes a second mounting seat, a feeding rod and multiple fixed shafts. The feeding rod is rotatably connected to the second mounting seat, and the multiple fixed shafts are connected to the second mounting seat. One end of the film is connected to the feeding rod after passing through the multiple fixed shafts.

[0017] As a further improvement of the above technical solution, the anti-wear device also includes a connecting seat, the opposite ends of which are respectively connected to the feeding mechanism and the receiving mechanism, the connecting seat is slidably connected to two limit members, the limit members are provided with a locking member for connecting the connecting seat, and the ultrasonic welder is clamped between the two limit members.

[0018] The utility model also discloses an ultrasonic plastic welding machine, comprising an ultrasonic welder and an anti-wear device as described in any one of the above items, wherein the bottom end of the ultrasonic welder is provided with a mounting groove with an opening facing downward, and the anti-wear device is embedded in the mounting groove.

[0019] The present invention has at least the following beneficial effects: the anti-wear device automatically transports the rubber film between the upper mold and the lower mold through the controller, thereby preventing the upper mold from wearing the surface of the rubber part when the ultrasonic welder drives the lower mold for ultrasonic welding, eliminating the need for manual replacement of the rubber film, and improving the production efficiency of the rubber parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the ultrasonic plastic welding machine provided by an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the anti-scratch device provided in an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the overall structure of the ultrasonic welder provided by the embodiment of the utility model.

[0024] The following are marked in the accompanying drawings:

[0025] 100. Anti-scratch device; 110. Automatic film rolling machine;

[0026] 200, feeding mechanism; 210, second mounting seat; 220, feeding rod; 230, fixed shaft;

[0027] 300, material receiving mechanism; 310, first mounting seat; 320, film pulling shaft; 330, material receiving rod;

[0028] 400, clamping shaft; 410, connecting rod;

[0029] 500, connecting seat; 510, limiting piece; 520, locking piece; 530, adjusting bolt;

[0030] 600, ultrasonic welder; 610, upper die; 620, lower die; 630, welding head; 631, contact part; 640, sensor; 650, mounting slot;

[0031] 700, control panel; 710, display screen; 720, buttons;

[0032] 800. Adhesive film. DETAILED DESCRIPTION

[0033] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of this utility model, if the word "several" or "several" is used, it means one or more, and "more" means two or more. "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of the words "first," "second," and "third" is only for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] It should be noted that in the accompanying drawings, the X direction is from the rear side of the anti-scratch device and the ultrasonic plastic welding machine to the front side; the Y direction is from the left side of the anti-scratch device and the ultrasonic plastic welding machine to the right side; and the Z direction is from the bottom side of the anti-scratch device and the ultrasonic plastic welding machine to the top side.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Reference Figures 1 to 3 Several embodiments of the anti-wear device and ultrasonic plastic welding machine of the present invention are given below.

[0039] like Figures 1 to 3As shown, the anti-scratch device 100 of the embodiment of the present invention is applied to an ultrasonic welder 600 to prevent the ultrasonic welder 600 from scratching the rubber parts during welding. The ultrasonic welder 600 includes a lower mold 620 and an upper mold 610 connected to a weld head 630.

[0040] It is understood that the anti-scratch device 100 includes an automatic film rolling machine 110, such as Figure 1 As shown, the automatic film rolling machine 110 is used to transport the adhesive film 800 to the ultrasonic welder 600. The transported adhesive film 800 is passed between the upper mold 610 and the lower mold 620. The worker can put the adhesive parts to be welded on the lower mold 620 and start the welding operation of the ultrasonic welder 600. The welding head 630 drives the upper mold 610 to move downward. The upper mold 610 presses the lower mold 620 and the adhesive parts thereon through the adhesive film 800 and starts to weld the adhesive parts, thereby preventing the upper mold 610 from wearing the adhesive parts when welding the adhesive parts.

[0041] It is understandable that the anti-scratch device 100 also includes a controller, which is provided with a preset number. The controller is signal-connected to the ultrasonic welder 600. When the number of welds of the ultrasonic welder 600 is equal to the preset number, the controller controls the automatic film rolling machine 110 to start, thereby replacing the adhesive film 800.

[0042] It is understandable that for some plastic parts with high requirements for surface finish, the preset number can be reduced, that is, every time the ultrasonic welder 600 welds a small number of plastic parts, the controller controls the automatic film rolling machine 110 to replace the film 800 to ensure the smoothness of the plastic parts.

[0043] It is understandable that for some plastic parts that do not require high surface finish, the preset number can be increased, that is, after the ultrasonic welder 600 welds multiple plastic parts, the controller controls the automatic film rolling machine 110 to replace the plastic film 800, thereby reducing the replacement time and usage cost of the plastic film 800, reducing the replacement frequency of the automatic film rolling machine 110, and improving the welding efficiency of the plastic parts.

[0044] With this arrangement, workers only need to set a preset number in advance, and the anti-scratch device 100 automatically replaces the adhesive film 800 according to the preset number and the welding number of the ultrasonic welder 600, without the need for workers to manually replace it, making the replacement of the adhesive film 800 more convenient and intelligent, improving the replacement efficiency of the adhesive film 800, reducing the manpower required for replacing the adhesive film 800, and improving the production efficiency of adhesive parts.

[0045] In this embodiment, the adhesive film 800 is conveyed from left to right between the upper mold 610 and the lower mold 620. The preset number is at least once.

[0046] Furthermore, the controller is provided with a preset length. Since the controller is signal-connected to the automatic film rolling machine 110, the controller can control the automatic film rolling machine 110 to change the length of the adhesive film 800 so that the change length of the adhesive film 800 is the preset length.

[0047] With this configuration, the preset length can be set based on the length of the plastic part. For plastic parts with a larger left-right length, the preset length can be increased to ensure that the new plastic film 800 is aligned vertically with the upper mold 610 and lower mold 620, respectively, allowing the ultrasonic welder 600 to continue welding. For plastic parts with a smaller left-right length, the preset length can be decreased to ensure that the new plastic film 800 is aligned vertically with the upper mold 610. This reduces the number of plastic film 800 replacements, reduces the cost of using the plastic film 800, and improves the utilization rate of the plastic film 800.

[0048] It is understood that the ultrasonic welder 600 is connected to a sensor 640, the sensor 640 is connected to the controller signal, and the welding head 630 of the ultrasonic welder 600 is connected to a touch piece 631 opposite to the sensor 640, such as Figure 3 shown.

[0049] With this arrangement, every time the ultrasonic welder 600 welds a piece of plastic, the touch member 631 contacts the sensor 640 once, and the sensor 640 sends a contact signal to the controller, so that the controller can obtain the number of welds completed by the ultrasonic welder 600.

[0050] In this embodiment, the sensor 640 is fixed to the right side of the ultrasonic welder 600 by screws. The touch member 631 is an L-shaped plate, one end of which is fixedly connected to the right side of the welding head 630 and the other end is located below the sensor 640. Figure 3 When the welding head 630 drives the upper mold 610 to press down to complete welding and return to the original position, the contact member 631 contacts the sensor 640, and the sensor 640 sends a contact signal to the controller.

[0051] It is understandable that the signal connection may be an electrical connection, a Bluetooth connection, a WIFI (wireless communication technology) connection, or the like.

[0052] It is understandable that the sensor 640 can be a proximity switch, a photoelectric sensor, a travel switch, etc.

[0053] In some embodiments, a worker may preset the quantity and the preset length to the controller via a software program of the electronic device.

[0054] In other embodiments, the controller signal is connected to a control panel 700, and the control panel 700 is provided with a display screen 710 and a button 720. The display screen 710 can display the preset quantity and preset length for the convenience of workers to view, such as Figure 2As shown, the worker can adjust the preset quantity by pressing button 720 on the control panel 700, facilitating timely adjustment based on the finish requirements of different plastic parts. The worker can also adjust the preset length by pressing button 720 on the control panel 700, facilitating adjustment based on the left-right length of different plastic parts.

[0055] It is understood that the controller can be a single-chip microcomputer or a PCL controller that can simply realize the on / off control of the automatic film rolling machine 110. It should be noted that the control method of the controller does not fall within the scope of protection of this utility model and belongs to the prior art. This utility model mainly protects the connection method of the controller.

[0056] In some embodiments, the automatic film rolling machine 110 includes a feeding mechanism 200, and the film 800 is connected to the output end of the feeding mechanism 200. Figure 1 and Figure 2 When the controller controls the feeding mechanism 200 to replace the film 800, the feeding mechanism 200 feeds a new film 800 between the upper mold 610 and the lower mold 620 to replace the worn film 800, thereby completing the replacement of the film 800. The worn film 800 naturally falls down due to gravity.

[0057] In other embodiments, the automatic film rolling machine 110 includes a material receiving mechanism 300, and one end of the film 800 is connected to the material receiving mechanism 300. Figure 1 and Figure 2 When the controller controls the material collecting mechanism 300 to replace the film 800, the material collecting mechanism 300 is used to collect the worn film 800, so that the new film 800 is driven between the upper mold 610 and the lower mold 620 to achieve the replacement of the film 800.

[0058] In this embodiment, the automatic film rolling machine 110 includes a feeding mechanism 200 and a receiving mechanism 300. The feeding mechanism 200 is located to the left of the receiving mechanism 300. Figure 1 and Figure 2 shown.

[0059] It can be understood that one end of the film 800 is connected to the feeding mechanism 200 so that the film 800 is smoothly output from the feeding mechanism 200 , and the other end of the film 800 is connected to the receiving mechanism 300 so that the film 800 is smoothly collected by the receiving mechanism 300 .

[0060] It is understandable that the upper mold 610 and the lower mold 620 are located between the feeding mechanism 200 and the receiving mechanism 300 , and the film 800 output from the feeding mechanism 200 and the film 800 before being collected are continuously passed between the upper mold 610 and the lower mold 620 .

[0061] In this embodiment, the material receiving mechanism 300 includes a film pulling motor, a first mounting seat 310, a film pulling shaft 320 and a material receiving rod 330. Figure 2 Specifically, the film-pulling motor is connected to the rear side of the first mounting seat 310. The output end of the film-pulling motor extends forward through the first mounting seat 310 and is in transmission connection with the film-pulling shaft 320, causing the film-pulling shaft 320 to rotate about its own axis, that is, the axis extending forward and backward. One end of the film 800 is wrapped around the film-pulling shaft 320 and connected to the material collection rod 330, which extends forward and backward and is rotatably connected to the first mounting seat 310.

[0062] With such an arrangement, when the film 800 between the upper mold 610 and the lower mold 620 needs to be replaced, the controller starts the film-pulling motor, which drives the film-pulling shaft 320 to rotate. The relative friction between the film-pulling shaft 320 and the film 800 is large, and the rotating film-pulling shaft 320 drives the film 800 to be output from the feeding mechanism 200, so that the film 800 moves from left to right, and the film 800 between the upper mold 610 and the lower mold 620 is replaced. The receiving rod 330 rotates and collects the worn film 800, so that the film 800 on the receiving rod 330 is in a roll shape.

[0063] It is understood that in order to ensure that there is sufficient friction between the film 800 and the film-pulling shaft 320 and to ensure that the film 800 is driven by the rotating film-pulling shaft 320 to complete the replacement, the material receiving mechanism 300 further includes a clamping shaft 400, which is rotatably connected to the first mounting seat 310. Figure 2 shown.

[0064] In this embodiment, a connecting rod 410 is provided between the clamping shaft 400 and the first mounting seat 310. One end of the connecting rod 410 is rotatably connected to the clamping shaft 400, and the other end of the connecting rod 410 is rotatably connected to the mounting seat. The adhesive film 800 is wound between the film-drawing shaft 320 and the clamping shaft 400. Figure 2 shown.

[0065] With this arrangement, since the connecting rod 410 and the clamping shaft 400 are rotatably connected, the clamping shaft 400 rotates about its own axis relative to the connecting rod 410. Since the connecting rod 410 and the mounting base are rotatably connected, the connecting rod 410 and the clamping shaft 400 can rotate relative to each other about the rotation axis of the connecting rod 410 and the mounting base, thereby adjusting the spacing between the film-drawing shaft 320 and the clamping shaft 400, ensuring that the adhesive film 800 wound therebetween is clamped and secured. When the film-drawing motor is started, the adhesive film 800 can be replaced as the film-drawing shaft 320 rotates.

[0066] Furthermore, a fixing member is provided between the connecting rod 410 and the first mounting seat 310. Specifically, the fixing member is a fixing screw and a fixing nut. One end of the connecting rod 410 is connected to the fixing screw, and the fixing screw passes through the first mounting seat 310 and is screwed onto the fixing nut to fix the relative positions of the clamping shaft 400 and the film pulling shaft 320.

[0067] It is understandable that the preset length can be determined by the rotation speed of the film-pulling motor and the start-up time of the film-pulling motor controlled by the controller to determine the preset length of the film 800 to be replaced.

[0068] In some embodiments, the film-pulling motor is a stepping motor, which converts an electric pulse signal corresponding to a preset length into an angular displacement, thereby controlling the film 800 to be replaced with a preset length.

[0069] In other embodiments, the film-pulling motor is a servo motor, which can convert the voltage signal corresponding to the preset length into the corresponding torque and speed, so that the replacement length of the film 800 can accurately reach the preset length.

[0070] It is understood that the feeding mechanism 200 includes a second mounting base 210, a feeding rod 220 and a plurality of fixed shafts 230, such as Figure 2 Specifically, the feed rod 220 extends in the front-to-back direction and is rotatably connected to the front side of the second mounting base 210, allowing the feed rod 220 to rotate relative to the second mounting base 210 along its axis in the front-to-back direction. Multiple fixed shafts 230 are fixedly connected to the front side of the second mounting base 210. One end of the film 800 passes around the multiple fixed shafts 230 and is connected to the feed rod 220, ensuring smooth delivery of the film 800 and preventing it from folding.

[0071] It is understandable that the adhesive film 800 on the feeding rod 220 is in a roll shape, so that the output of the adhesive film 800 is continuous and uninterrupted.

[0072] With this arrangement, when the film 800 is moved by the film-pulling shaft 320 , the feeding rod 220 rotates relative to the second mounting seat 210 to output a new film 800 .

[0073] In this embodiment, multiple fixed shafts 230 are divided into two groups, the upper group includes three fixed shafts 230 arranged left and right. The film 800 connected to the feeding rod 220 is wound from the upper end of the fixed shaft 230 on the right to the lower end of the fixed shaft 230 in the middle, and then wound out from the upper end of the fixed shaft 230 on the left, so that the feeding rod 220 can smoothly output the film 800.

[0074] It can be understood that the lower group includes two fixed shafts 230 arranged left and right. The film 800 output from the upper left fixed shaft 230 is wound around the lower end of the left fixed shaft 230 and then around the upper end of the right fixed shaft 230, so that the film 800 can be smoothly transported between the upper mold 610 and the lower mold 620. Figure 1 and Figure 2 shown.

[0075] Furthermore, the fixed shaft 230 and the film-drawing shaft 320 located below are at the same horizontal position, so that the film 800 can be horizontally transported between the upper mold 610 and the lower mold 620, thereby improving the stability of the film 800.

[0076] It is understandable that the anti-wear device 100 further includes a connecting seat 500, the left end of the connecting seat 500 is connected to the feeding mechanism 200, and the right end of the connecting seat 500 is connected to the receiving mechanism 300, as shown in FIG. Figure 2 As shown, the relative positions of the feeding mechanism 200 and the receiving mechanism 300 are fixed to ensure that the adhesive film 800 between the film-drawing shaft 320 and the fixed shaft 230 located below is horizontally stable.

[0077] It is understandable that the connecting seat 500 and the first mounting seat 310 and the second mounting seat 210 can be fixedly connected by welding, gluing or the like, or can be detachably connected by connecting members such as bolts.

[0078] It can be understood that the connecting seat 500 is slidably connected to the two limiting members 510, the limiting members 510 are provided with a locking member 520, and the ultrasonic welder 600 is clamped between the two limiting members 510. Figure 2 Specifically, the upper end surface of the connecting base 500 is provided with a slide groove extending left and right, and the limit member 510 slides on the slide groove. The locking member 520 can be a locking bolt. By screwing the locking bolt into the slide groove, the limit member 510 and the connecting base 500 are relatively fixed. The two limit members 510 respectively abut the left and right sides of the ultrasonic welder 600, thereby relatively fixing the ultrasonic welder 600 and the connecting base 500. This prevents vibration and shaking generated by the ultrasonic welder 600 during welding operation from affecting the relative position of the weld head 630 and the adhesive film 800, preventing the adhesive film 800 from completely covering the adhesive component and causing the adhesive component to be scratched by the upper mold 610.

[0079] It is understandable that the limiting member 510 is provided with an adjusting bolt 530. Figure 2Specifically, the limiter 510 is provided with adjustment screw holes along the left and right directions, and the adjustment bolts 530 are threadedly inserted into the adjustment screw holes. When the limiter 510 is fixed to the connecting base 500 by the locking bolts, and the ultrasonic welder 600 is located between the two limiters 510, the adjustment bolts 530 are tightened so that one end of the adjustment bolts 530 abuts against the side of the ultrasonic welder 600, thereby achieving the abutment of the limiter 510 against the ultrasonic welder 600.

[0080] The utility model also discloses an ultrasonic plastic welding machine, including an ultrasonic welding machine 600 and an anti-wear device 100. Figure 1 The bottom end of the ultrasonic welder 600 is provided with a mounting groove 650 with an opening facing downwards, as shown in FIG. Figure 1 and Figure 3 The anti-scratch device 100 is snapped into the mounting groove 650, so that the ultrasonic welder 600 and the anti-scratch device 100 are assembled and connected, reducing the front and rear space occupied by the ultrasonic plastic welder.

[0081] It is understood that a workbench is provided at the lower end of the ultrasonic welder 600, and the lower mold 620 is disposed on the workbench. The mounting groove 650 extends left and right and connects to the left and right sides of the ultrasonic welder 600, respectively. The connecting base 500 is embedded in the mounting groove 650 from bottom to top, and the adjusting bolt 530 abuts the side of the workbench located above the mounting groove 650.

[0082] The above specifically describes the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An anti-wear device, used in ultrasonic welding machine, characterized in that: The ultrasonic welder includes an upper mold and a lower mold, and the anti-wear device includes an automatic film rolling machine and a controller. The automatic film rolling machine is used to convey the adhesive film to the ultrasonic welder, and the conveyed adhesive film is passed between the upper mold and the lower mold. The controller is provided with a preset number, and the controller is configured to control the automatic film rolling machine to replace the adhesive film when the number of weldings of the ultrasonic welder is equal to the preset number.

2. The anti-scratch device according to claim 1, characterized in that: The controller is provided with a preset length, and the controller is configured to control the automatic film rolling machine to replace the film to the preset length.

3. The anti-scratch device according to claim 1, characterized in that: The ultrasonic welder is connected to a sensor, the sensor is connected to the controller signal, and the welding head of the ultrasonic welder is connected to a touch piece opposite to the sensor.

4. The anti-scratch device according to claim 2, characterized in that: The controller signal is connected to a control panel, and the control panel is provided with a display screen and buttons, and the display screen is used to display the preset number and the preset length of the adhesive film.

5. The anti-scratch device according to claim 1, characterized in that: The automatic film rolling machine includes a feeding mechanism and a receiving mechanism, one end of the film is connected to the feeding mechanism, the other end of the film is connected to the receiving mechanism, and the upper mold and the lower mold are located between the feeding mechanism and the receiving mechanism.

6. The anti-scratch device according to claim 5, characterized in that: The material receiving mechanism includes a film-pulling motor, a first mounting seat, a film-pulling shaft and a material-receiving rod. The output end of the film-pulling motor passes through the first mounting seat and is transmission-connected to the film-pulling shaft. The other end of the film passes around the film-pulling shaft and is connected to the material-receiving rod. The material-receiving rod is rotatably connected to the first mounting seat.

7. The anti-scratch device according to claim 6, characterized in that: The material receiving mechanism also includes a clamping shaft, a connecting rod is provided between the clamping shaft and the first mounting seat, the opposite ends of the connecting rod are respectively rotatably connected to the clamping shaft and the first mounting seat, and a fixing piece is provided between the connecting rod and the first mounting seat.

8. The anti-scratch device according to claim 5, characterized in that: The feeding mechanism includes a second mounting seat, a feeding rod and multiple fixed shafts. The feeding rod is rotatably connected to the second mounting seat, and the multiple fixed shafts are connected to the second mounting seat. One end of the film passes around the multiple fixed shafts and is connected to the feeding rod.

9. The anti-scratch device according to claim 5, characterized in that: It also includes a connecting seat, the opposite ends of which are respectively connected to the feeding mechanism and the receiving mechanism. The connecting seat is slidably connected to two limit members, and the limit members are provided with a locking member for connecting the connecting seat. The ultrasonic welder is clamped between the two limit members.

10. An ultrasonic plastic welding machine, characterized in that: It comprises an ultrasonic welder and the anti-wear device according to any one of claims 1 to 9, wherein the bottom end of the ultrasonic welder is provided with a mounting groove with an opening facing downward, and the anti-wear device is embedded in the mounting groove.

Images