Ultrasonic welding device for reed of windscreen wiper

By combining an electric slide bar and blade design, the problems of manual adjustment errors and glue overflow in traditional ultrasonic welding devices are solved, enabling precise assembly and efficient production of windshield wipers, and ensuring product quality and performance.

CN224115381UActive Publication Date: 2026-04-14江西铭鸿新材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江西铭鸿新材料科技有限公司
Filing Date
2025-05-07
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional ultrasonic welding devices rely on manual adjustment of the fixing clips, which leads to installation errors and glue overflow, affecting the assembly quality and performance of the wipers.

Method used

It adopts a combination design of electric slide bar, electric slide rail, blade, guide rod and push plate to accurately push the fixing buckle to the center position of the spring and remove excess glue with the blade. At the same time, the slide cylinder and mounting block are used to realize the quick placement and removal of the spring. Combined with dust cover and cover plate to prevent dust from entering.

Benefits of technology

Ensure precise assembly of windshield wipers, avoid installation errors and excess adhesive, improve production efficiency, guarantee product appearance and performance, and enhance ease of operation and welding quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224115381U_ABST
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Abstract

The utility model belongs to the field of automobile part manufacturing, and particularly relates to a windscreen wiper reed ultrasonic welding device which comprises a machine frame, an installation rod, an ultrasonic welding machine, a guide rail, a sliding block and the like, the machine frame serves as a basic frame of the whole device, the installation rod is installed at the top end of the machine frame, and the ultrasonic welding machine is installed at the upper end of the installation rod. The two guide rails are fixedly connected to the top end of the machine frame in a side-by-side layout mode, and each sliding block is arranged on the corresponding guide rail in a sliding mode. Through the combined design of the electric sliding rods, the electric sliding rails, the blades, the guide rods and the push plate, the two electric sliding rods can accurately push the fixing buckles to the middle positions of the reeds, errors caused by manual operation are effectively avoided, the assembly quality of the windscreen wiper is guaranteed, normal installation and use of the windscreen wiper are guaranteed, and meanwhile the assembly efficiency is improved. The blade can quickly remove redundant colloid overflowing to the surface of the reed from the lower portion of the fixing buckle, neat appearance of the product is guaranteed, and potential negative effects of colloid residues on performance are eliminated.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive parts manufacturing, and in particular relates to an ultrasonic welding device for windshield wiper springs. Background Technology

[0002] Windshield wipers are the core component of a car's glass cleaning system, and their performance directly affects driving safety and the driving experience. In various weather conditions, such as rain, snow, or when there is dirt, good wipers ensure the driver has a clear view, improving driving safety and enhancing the driving experience. The wiper blades, as a key component of the wiper, not only transmit power but also directly affect the wiper's lifespan and wiping effectiveness.

[0003] Although traditional ultrasonic welding equipment has achieved a certain level of automation, in actual welding processes, the position of the fixing clips still relies on manual adjustment by the operator to center the spring. However, manual adjustment is prone to errors, leading to misalignment between the spring and the wiper arm, reducing the overall assembly quality of the wiper, and potentially causing the wiper to malfunction or be unusable. Furthermore, after welding, excess adhesive often overflows from the lower part of the fixing clips, leaving residue on the spring surface, which not only affects the product's appearance but may also negatively impact the wiper's performance.

[0004] Therefore, there is a particular need for an ultrasonic welding device for windshield wiper springs to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of traditional ultrasonic welding devices, which rely on manual adjustment of the fixing buckle position, resulting in poor installation and easy glue overflow after welding, affecting the assembly quality and performance of the wiper blades, this utility model provides an ultrasonic welding device for wiper blade springs.

[0006] This utility model is achieved through the following technical means: an ultrasonic welding device for windshield wiper blades, including a frame, a mounting rod, an ultrasonic welding machine, guide rails, sliders, a placement platform, and a control console. The frame serves as the basic framework of the entire device. The mounting rod is installed at the top of the frame, and the ultrasonic welding machine is installed at the upper end of the mounting rod. Two guide rails are fixed to the top of the frame in a side-by-side arrangement. Each slider is slidably mounted on each guide rail. The placement platform is installed between the tops of the two sliders, with a square placement groove in its middle. The control console is installed on the upper part of the frame and electrically connected to the ultrasonic welding machine. The device also includes an electric slide rod, an electric slide rail, a blade, a guide rod, and a push plate. The electric slide rail is installed at the rear of the placement platform. Two electric slide rods are slidably mounted on the electric slide rail in a side-by-side arrangement. The electric slide rail and the two electric slide rods are both electrically connected to the control console. The guide rod is fixed inside the placement platform and located below the placement groove. The blade is slidably mounted outside the guide rod and forms a sliding contact with the placement platform, with the tip of the blade extending into the placement groove. The push plate is fixed to the bottom end of the blade and forms a sliding contact with the placement platform.

[0007] As a further preferred option, it also includes rubber blocks, each of which is fixed to the front end of each electric slide bar, and has a row of strip grooves on one side.

[0008] As a further preferred embodiment, it also includes a slide cylinder and a mounting block. The slide cylinder, which is electrically connected to the control console, is mounted on the top of the frame with its telescopic rod facing forward. The mounting block is fixed to the bottom of the placement platform and is fixedly engaged with the telescopic rod of the slide cylinder.

[0009] As a further preferred option, it also includes a dust cover and a cover plate. The dust cover is installed at the top of the frame, and the cover plate is rotatably located at the front of the dust cover. The lower part of the cover plate has an outlet, and the maximum lateral length of the outlet is greater than the length of the placement table.

[0010] As a further preferred option, a square glass plate is embedded in the cover plate.

[0011] As a further preferred option, a handle is also included, which is fixed to the left side of the cover plate.

[0012] Beneficial effects: 1. Through the combined design of electric slide rod, electric slide rail, blade, guide rod and push plate, the two electric slide rods can accurately push the fixing buckle to the center position of the spring, effectively avoiding the error caused by manual operation, ensuring the assembly quality of the wiper, and ensuring that it can be installed and used normally. At the same time, the blade can quickly remove the excess glue that overflows from the bottom of the fixing buckle to the surface of the spring, ensuring the cleanliness of the product appearance and eliminating the potential negative impact of glue residue on performance.

[0013] 2. By adding a slide cylinder and mounting block, the placement table can be moved back and forth quickly and smoothly, enabling the rapid placement of the spring before welding and the rapid removal of the spring after welding, thus improving production efficiency.

[0014] 3. By setting up dust covers and caps, dust can be effectively prevented from entering the welding area during the welding process, ensuring welding quality. At the same time, the glass plate on the cap allows operators to easily observe the welding process inside the dust cover. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the ultrasonic welding machine, guide rail, and slider components of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the placement platform, rubber block, and electric sliding rod.

[0018] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the electric slide bar, electric slide rail, and slide cylinder.

[0019] Figure 5 This is a three-dimensional structural diagram of the blade, guide rod, and push plate components of this utility model.

[0020] In the diagram: 1. Frame, 2. Mounting rod, 3. Ultrasonic welding machine, 5. Guide rail, 6. Slider, 7. Placement platform, 8. Rubber block, 9. Electric slide bar, 10. Electric slide rail, 11. Slide cylinder, 111. Mounting block, 12. Blade, 13. Guide rod, 14. Push plate, 15. Dust cover, 16. Cover plate, 17. Handle, 18. Control console. Detailed Implementation

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0022] Example: An ultrasonic welding device for windshield wiper springs, such as... Figures 1-5As shown, the device includes a frame 1, mounting rod 2, ultrasonic welding machine 3, guide rail 5, slider 6, placement platform 7, and control console 18. The frame 1 serves as the basic framework of the entire device. The mounting rod 2 is bolted to the center of the rear top of the frame 1. The ultrasonic welding machine 3 is bolted to the upper end of the mounting rod 2. Two guide rails 5 are welded to the front top of the frame 1 in a side-by-side arrangement. Each slider 6 is slidably mounted on each guide rail 5. The placement platform 7 is bolted between the tops of the two sliders 6 and has a square placement slot in its center. The control console 18 is bolted to the front upper part of the frame 1 and is electrically connected to the ultrasonic welding machine 3. The device also includes a rubber block 8, electric slide rod 9, electric slide rail 10, blade 12, guide rod 13, and push plate 14. The electric slide rail 10 is bolted to the side of the rear of the placement platform 7. Two electric slide rods 9 are slidably mounted on the electric slide rail 10 in a side-by-side arrangement. The electric slide rail 10 is connected to the two electric slide rods 9. All slide rods 9 are electrically connected to the control panel 18. Each rubber block 8 is bonded to the front end of each electric slide rod 9, which can directly contact the fixed buckle instead of the electric slide rod 9, playing the role of buffer protection and stable contact. Each rubber block 8 has a row of strip grooves on its inward side, which can increase the friction with the fixed buckle and prevent slippage during the pushing of the fixed buckle. The guide rod 13 is welded inside the placement platform 7 and located below the placement groove. The blade 12 is slidably set outside the guide rod 13 and forms a sliding contact with the placement platform 7. The top of the blade 12 extends into the placement groove, and the extension height has been strictly calculated and adjusted. It is precisely set according to the actual distance between the bottom surface of the fixed buckle and the bottom surface of the spring, ensuring that when the spring is placed in the placement groove, the blade 12 can avoid the obstruction of the fixed buckle and directly and accurately contact the surface of the spring. The push plate 14 is welded to the bottom end of the blade 12 and forms a sliding contact with the placement platform 7.

[0023] like Figure 4 and Figure 5 As shown, it also includes a slide cylinder 11 and a mounting block 111. The slide cylinder 11, which is electrically connected to the control console 18, is bolted to the rear left side of the top of the frame 1, with its telescopic rod facing forward. The mounting block 111 is welded to the bottom left side of the placement platform 7 and is fixedly engaged with the telescopic rod of the slide cylinder 11.

[0024] like Figure 1As shown, it also includes a dust cover 15, a cover plate 16, and a handle 17. The dust cover 15 is bolted to the top of the frame 1. The cover plate 16 is rotatably mounted on the front of the dust cover 15. This rotatable method facilitates operation of the cover plate 16 to open the dust cover 15 and access its internal space, which is convenient for maintenance of the device. The lower part of the cover plate 16 has an outlet, and the maximum lateral length of the outlet is greater than the length of the placement platform 7, ensuring that the placement platform 7 can be withdrawn to the outside of the dust cover 15 through this outlet. A square glass plate is embedded in the cover plate 16. The glass plate is made of high-strength tempered glass, which has excellent impact resistance and can withstand a certain degree of external force without easily breaking, ensuring the safety of the operator when observing the inside of the dust cover 15. The handle 17 is welded to the center of the left side of the cover plate 16, providing the operator's hand with a sufficient and suitable force area during the rotation of the cover plate 16, improving the convenience of operation.

[0025] When this device is needed, the operator first starts the slide cylinder 11 and controls its telescopic rod to extend. The mounting block 111 drives the placement table 7 to move forward until the placement table 7 drives all the components on it to exit outside the dust cover 15. During this process, the slider 6 slides with the guide rail 5 to ensure that the placement table 7 moves smoothly.

[0026] Subsequently, the operator places the spring with the pre-installed fixing buckle in the placement slot of the placement platform 7. At this time, the fixing buckle is placed between the two electric slide rods 9. Then, the electric slide rail 10 is started through the control console 18 to control the two electric slide rods 9 to move inward, gradually approaching and pushing the fixing buckle to the center position of the spring.

[0027] Once the fixing buckle is centered, the operator controls the telescopic rod of the slide cylinder 11 to retract, which drives the placement platform 7 to move backward through the mounting block 111 until the placement platform 7 drives all the components and springs on it back into the dust cover 15. Then, the ultrasonic welding machine 3 is started to perform a lowering and raising action to complete the welding of the fixing buckle and the spring. After the welding is completed, the ultrasonic welding machine 3 is turned off, and the telescopic rod of the slide cylinder 11 is controlled to extend again, so that the placement platform 7 drives the welded spring to exit outside the dust cover 15.

[0028] Then, the operator pulls the blade 12 through the push plate 14. The blade 12 slides along the guide rod 13 to remove the excess glue that overflows from the lower part of the fixing buckle onto the surface of the spring, thereby keeping the surface of the spring clean.

[0029] Finally, the operator controls the two electric sliding rods 9 to move outward, gradually disengaging and releasing the fixing buckle. At this time, the electric slide rail 10 is turned off, the spring is removed, and the telescopic rod of the slide cylinder 11 is controlled to retract again, so that the placement platform 7 returns to the dust cover 15 and the slide cylinder 11 is turned off.

[0030] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.

Claims

1. An ultrasonic welding device for windshield wiper blades, comprising a frame (1), a mounting rod (2), an ultrasonic welding machine (3), guide rails (5), sliders (6), a placement platform (7), and a control console (18), wherein the frame (1) serves as the basic framework of the entire device, the mounting rod (2) is mounted on the top of the frame (1), the ultrasonic welding machine (3) is mounted on the upper end of the mounting rod (2), two guide rails (5) are fixed to the top of the frame (1) in a side-by-side arrangement, each slider (6) is slidably disposed on each guide rail (5), the placement platform (7) is mounted between the tops of the two sliders (6), and a square placement groove is provided in the middle of the platform, and the control console (18) is mounted on the upper part of the frame (1) and electrically connected to the ultrasonic welding machine (3), characterized in that: It also includes an electric slide bar (9), an electric slide rail (10), a blade (12), a guide rod (13), and a push plate (14). The electric slide rail (10) is installed at the rear of the placement platform (7). Two electric slide bars (9) are slidably arranged on the electric slide rail (10) in a side-by-side layout. The electric slide rail (10) and the two electric slide bars (9) are electrically connected to the control console (18). The guide rod (13) is fixed inside the placement platform (7) and located below the placement slot. The blade (12) is slidably arranged outside the guide rod (13) and forms a sliding contact with the placement platform (7). The top of the blade (12) extends into the placement slot. The push plate (14) is fixed to the bottom of the blade (12) and forms a sliding contact with the placement platform (7).

2. The ultrasonic welding device for windshield wiper springs according to claim 1, characterized in that: It also includes rubber blocks (8), each rubber block (8) being fixed to the front end of each electric slide bar (9), with a row of strip grooves on one side.

3. The ultrasonic welding device for windshield wiper springs according to claim 2, characterized in that: It also includes a slide cylinder (11) and a mounting block (111). The slide cylinder (11), which is electrically connected to the control console (18), is installed at the top of the frame (1) with its telescopic rod facing forward. The mounting block (111) is fixed to the bottom of the placement platform (7) and is fixedly engaged with the telescopic rod of the slide cylinder (11).

4. The ultrasonic welding device for windshield wiper springs according to claim 3, characterized in that: It also includes a dust cover (15) and a cover plate (16). The dust cover (15) is installed on the top of the frame (1), and the cover plate (16) is rotatably set in front of the dust cover (15). The lower part of the cover plate has an outlet, and the maximum lateral length of the outlet is greater than the length of the placement table (7).

5. The ultrasonic welding device for windshield wiper springs according to claim 4, characterized in that: A square glass plate is embedded in the cover plate (16).

6. The ultrasonic welding device for windshield wiper springs according to claim 5, characterized in that: It also includes a handle (17), which is fixed to the left side of the cover plate (16).