Automatic terminal cleaning device
The automatic titration system and clamp assembly controlled by solenoid valves enable timed and quantitative supply of cleaning fluid during the cleaning process of LCD displays, solving the problems of low cleaning efficiency and high risk, and improving cleaning efficiency and product yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANYANG CAIHONG OPTOELECTRONICS TECH CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-05-08
AI Technical Summary
In current LCD production, the evaporation of cleaning solution during the cleaning process leads to low cleaning efficiency, affects yield, and prolongs cleaning time, especially increasing the risk when cleaning large-size products.
An automatic titration system controlled by a solenoid valve, combined with a chuck assembly and a supply assembly, enables timed and quantitative supply of cleaning fluid, ensuring that the cleaning fluid does not evaporate during the cleaning process. The cleaning fluid is precisely titrated onto the product to be cleaned through a cleaning fluid channel set in the chuck.
It improves cleaning efficiency, shortens cleaning time, reduces the risk of dry wiping and terminal scratches, and ensures cleaning effect and equipment life.
Smart Images

Figure CN224208640U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of manufacturing equipment for liquid crystal display devices, and in particular to an automatic terminal cleaning device. Background Technology
[0002] In the current LCD manufacturing industry, cleaning processes are crucial. Currently, the industry commonly uses a combination of ultrasonic, isopropyl alcohol (IPA), and plasma cleaning methods. However, traditional cleaning methods mostly employ a separate structure for cleaning solution titration and pressure rollers, allowing only one titration of the cleaning solution during the cleaning process. As product size increases, the cleaning area also expands. During cleaning, the cleaning solution gradually decreases due to evaporation. By the time a certain length has been cleaned, the cleaning solution may have completely evaporated, posing a risk of dry wiping or scratching the glass terminals during subsequent cleaning, thus affecting yield. To perform a secondary titration cleaning of the LCD glass, the pressure rollers must rise, the cleaning solution must be re-titrated, the pressure rollers must descend to clamp the LCD glass, and the platform must move to complete the cleaning work, extending the cleaning time and impacting cleaning efficiency. Utility Model Content
[0003] In order to improve at least some of the shortcomings or deficiencies in the prior art, embodiments of the present invention provide an automatic terminal cleaning device, which achieves automatic titration by setting a solenoid valve, thereby improving cleaning efficiency and shortening cleaning time.
[0004] On one hand, an embodiment of this utility model provides an automatic terminal cleaning device, comprising: a clamp assembly including an upper clamp and a lower clamp disposed opposite to the upper clamp, the upper clamp having a first working surface on the side near the lower clamp, the upper clamp having a cleaning fluid channel, the outlet of the cleaning fluid channel being located on the first working surface; and a supply assembly including a cleaning fluid supply component and a solenoid valve; the cleaning fluid supply component being connected to the inlet of the cleaning fluid channel via a pipe, and the solenoid valve being disposed on the pipe.
[0005] In some embodiments, the outlet is located at the center of the first working face.
[0006] In some embodiments, the aperture of the outlet ranges from 1 mm to 2 mm.
[0007] In some embodiments, a quick connector is fixedly connected to the inlet, and the pipe is detachably connected to the upper clamp via the quick connector.
[0008] In some embodiments, a non-woven fabric is also included, which is located between the first working surface of the upper clamp and the product to be cleaned; a second working surface is provided on the side of the lower clamp near the upper clamp, the second working surface being used to contact the product to be cleaned.
[0009] In some embodiments, the upper chuck includes a side end face adjacent to the first working surface, the inlet is located on the side end face, and the cleaning fluid channel includes a first channel and a second channel communicating with the first channel. The first channel is parallel to the first working surface and communicates with the inlet, and the second channel is perpendicular to the first working surface and communicates with the outlet.
[0010] In some embodiments, multiple second channels are provided, and the multiple second channels are arranged at equal intervals.
[0011] In some embodiments, the length of the first channel is 3mm-5mm.
[0012] In some embodiments, an upper chuck cylinder is also included. The upper chuck includes a first mounting surface adjacent to the first working surface and the side end surface. A plurality of fixing holes are provided on the first mounting surface. The upper chuck is connected to the upper chuck cylinder through the fixing holes.
[0013] In some embodiments, the upper clamp is made of Teflon.
[0014] As can be seen from the above, the above-mentioned technical features of this utility model can have one or more of the following beneficial effects: by setting a solenoid valve, the cleaning fluid is delivered in a timed and quantitative manner, ensuring that the cleaning fluid will not evaporate completely during the cleaning process, reducing the risk of dry rubbing or scratching; by setting a cleaning fluid channel in the upper chuck, the cleaning fluid can flow directly out from the outlet located on the first working surface, integrating the titration position of the cleaning fluid with the clamping position of the upper chuck, so that the cleaning fluid can be accurately titrated on the product to be cleaned, avoiding dry rubbing caused by the deviation between the titration position and the clamping position. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of an automatic terminal cleaning device provided in an embodiment of the present utility model.
[0017] Figure 2 for Figure 1The diagram shows the structure of the lower clamp of the automatic terminal cleaning device.
[0018] Figure 3 for Figure 1 The diagram shows the structure of the upper clamp of the automatic terminal cleaning device.
[0019] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure.
[0020] Figure 5 for Figure 3 Another structural schematic diagram of the upper clamp is shown.
[0021] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure.
[0022] Figure label:
[0023] 110. Upper chuck; 111. First working surface; 112. Side end face; 113. First mounting surface;
[0024] 120. Lower chuck; 121. Second working surface; 122. Second mounting surface; 130. Cleaning fluid channel;
[0025] 131. Export; 132. Import; 133. First channel; 134. Second channel; 140. Quick connector; 150. Fixing hole; 20. Supply component; 210. Cleaning fluid supply component; 220. Solenoid valve; 230. Pipeline; 30. Non-woven fabric; 40. Product to be cleaned; 510. Upper chuck cylinder; 520. Lower chuck cylinder. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] See Figure 1 , Figure 2 and Figure 3This utility model provides an automatic terminal cleaning device, which includes a clamp assembly and a supply assembly 20. The clamp assembly includes an upper clamp 110 and a lower clamp 120 disposed opposite to the upper clamp 110. A first working surface 111 is provided on the side of the upper clamp 110 near the lower clamp 120. A cleaning fluid channel 130 is provided inside the upper clamp 110, and the outlet 131 of the cleaning fluid channel 130 is located on the first working surface 111. The supply assembly 20 includes a cleaning fluid supply component 210 and a solenoid valve 220. The cleaning fluid supply component 210 is connected to the inlet 132 of the cleaning fluid channel 130 through a pipe 230, and the solenoid valve 220 is disposed on the pipe 230.
[0028] During operation, the upper chuck 110 and lower chuck 120 are positioned opposite each other to form a clamping structure to hold the product 40 to be cleaned. The upper chuck 110 holds the upper surface of the product 40, and the lower chuck 120 holds the lower surface. The product 40 moves horizontally within the space between the upper chuck 110 and the lower chuck 120. Since there is non-woven fabric 30 between the product 40 and the upper chuck 110, friction occurs between the upper surface of the product 40 and the non-woven fabric 30, thus completing the cleaning process. The cleaning fluid supply unit 210 stores an appropriate amount of cleaning fluid, which is delivered through pipe 230 to the inlet 132 of the cleaning fluid channel 130 in the upper chuck 110, and then dripped onto the non-woven fabric 30 through outlet 131, thus achieving the supply of cleaning fluid.
[0029] Since the size of the product 40 to be cleaned (i.e., LCD display, glass, etc.) and the cleaning speed of the terminals in this device are known, the time to clean one product 40 is a fixed value, and the time for the cleaning solution to evaporate completely after one titration is also a fixed value. Several predetermined cleaning solution titration times can be selected based on the data. The solenoid valve 220 is triggered to open when these preset times are reached. The cleaning solution in the cleaning solution supply unit 210 enters the cleaning solution channel 130 through the pipe 230 and finally achieves titration, which improves cleaning efficiency, shortens the cleaning cycle, and ensures that the cleaning solution will not evaporate completely during the cleaning process, reducing the risk of dry wiping or terminal scratches during subsequent terminal cleaning and ensuring yield. Among them, the time and amount of cleaning solution for one titration are fixed values. The titration amount and titration time of the cleaning solution can be adjusted according to different sizes of products 40 to be cleaned and cleaning requirements.
[0030] The cleaning fluid channel 130 is located within the upper chuck 110, with the outlet 131 of the cleaning fluid channel 130 integrated with the first working surface 111 of the upper chuck 110. This means the cleaning fluid titration position matches the clamping position of the upper chuck 110, allowing the cleaning fluid to be accurately titrated onto the product 40 to be cleaned. This avoids dry rubbing caused by deviations between the titration and clamping positions, thus ensuring cleaning effectiveness and extending the lifespan of the upper chuck 110. Furthermore, when a second titration of the cleaning fluid is required after a preset time, the upper chuck 110 can be raised without needing to perform the titration.
[0031] See Figure 3 In some embodiments, the outlet 131 is located at the center of the first working surface 111, so that the cleaning liquid flowing out of the outlet 131 can spread evenly in all directions, ensuring that the cleaning liquid is evenly distributed on the non-woven fabric 30 between the first working surface 111 and the product 40 to be cleaned, avoiding the problem of incomplete cleaning in some areas due to uneven distribution of cleaning liquid, and preventing dry wiping.
[0032] See Figure 3 and Figure 4 In some embodiments, the orifice diameter of outlet 131 is in the range of 1mm-2mm, so that the cleaning fluid flows out of outlet 131 uniformly at a suitable flow rate and pressure. If the orifice diameter of outlet 131 is too large, it may result in excessive flow of cleaning fluid, causing waste and potentially impacting the cleaning surface; if the orifice diameter of outlet 131 is too small, it may result in insufficient flow, affecting the cleaning effect.
[0033] See Figure 3 and Figure 5 In some embodiments, a quick connector 140 is fixedly connected to the inlet 132, and the pipe 230 is detachably connected to the upper clamp 110 via the quick connector 140, facilitating the connection between the pipe 230 and the upper clamp 110. At the same time, the quick connector 140 provides reliable sealing performance, reducing the risk of cleaning fluid leakage, and also facilitates quick replacement and installation of the pipe 230 when needed.
[0034] See Figure 1 In some embodiments, a non-woven fabric 30 is also included. A second working surface 121 is provided on the side of the lower clamp 120 near the upper clamp 110. The product 40 to be cleaned is located between the first working surface 111 and the second working surface 121. The upper clamp 110 and the lower clamp 120 are arranged opposite to each other and cooperate to clamp the product 40 to be cleaned. The non-woven fabric 30 is located between the first working surface 111 of the upper clamp 110 and the product 40 to be cleaned, so that during the cleaning process, the non-woven fabric 30 can be tightly attached to the surface of the product 40 to be cleaned under the action of the upper clamp 110, thereby achieving effective cleaning.
[0035] See Figure 3 and Figure 4In some embodiments, the upper chuck 110 includes a side end face 112 adjacent to the first working surface 111, an inlet 132 located on the side end face 112, and a cleaning fluid channel 130 including a first channel 133 and a second channel 134 communicating with the first channel 133. The first channel 133 is parallel to the first working surface 111 and communicates with the inlet 132, while the second channel 134 is perpendicular to the first working surface 111 and communicates with the outlet 131. The cleaning fluid first enters from the inlet 132 of the side end face 112, flows along the first channel 133 and the second channel 134, and finally flows out from the outlet 131 located at the center of the first working surface 111. The first channel 133 is parallel to the first working surface 111, and the second channel 134 is perpendicular to the first working surface 111. The first channel 133 and the second channel 134 together form an L-shaped channel. Compared with a straight channel, the L-shaped channel can better guide the flow of the cleaning fluid, making it flow out more smoothly and avoiding problems such as splashing or uneven distribution of the cleaning fluid due to unreasonable channel design.
[0036] See Figure 5 and Figure 6 In some embodiments, multiple second channels 134 are provided, arranged equidistantly, and multiple outlets 131 are also provided accordingly. The cleaning fluid supply unit 210 stores an appropriate amount of cleaning fluid, which is transported through the pipe 230 to the inlet 132 of the cleaning fluid channel 130 in the upper clamp 110. After passing through the first channel 133, the cleaning fluid flows out from multiple second channels 134, thereby realizing the supply of cleaning fluid. The arrangement of multiple second channels 134 can more effectively cover the entire first working surface 111, ensuring that the surface of the product 40 to be cleaned can be fully cleaned, and further improving the uniformity of the cleaning effect.
[0037] See Figure 4 and Figure 6 In some embodiments, the length of the first channel 133 is 3mm-5mm. If the length of the cleaning fluid channel 130 is less than 3mm, the channel is too short and the cleaning fluid flows out rapidly in a short time; if the length of the cleaning fluid channel 130 is greater than 5mm, the flow distance of the cleaning fluid in the channel is increased.
[0038] See Figure 1In some embodiments, an upper chuck cylinder 510 is also included. The upper chuck 110 includes a first mounting surface 113 adjacent to the first working surface 111 and the side end surface 112. The first mounting surface 113 is provided with a plurality of fixing holes 150. The upper chuck 110 is connected to the upper chuck cylinder 510 through the fixing holes 150. The upper chuck cylinder 510 drives the upper chuck 110 to move closer to or away from the product 40 to be cleaned. Correspondingly, a lower chuck cylinder 520 is also included. The lower chuck 120 includes a second mounting surface 122 adjacent to the second working surface 121. The second mounting surface 122 is also provided with a plurality of fixing holes 150. The lower chuck 120 is connected to the lower chuck cylinder 520 through the fixing holes 150. The lower chuck cylinder 520 drives the lower chuck 120 to move closer to or away from the product 40 to be cleaned. Upper chuck cylinder 510 and lower chuck cylinder 520 ensure the stability of upper chuck 110 and lower chuck 120 during the cleaning process, allowing for easy installation and removal of the chuck assembly. Upper chuck 110 is driven by upper chuck cylinder 510, and lower chuck 120 is driven by lower chuck cylinder 520, enabling the upper chuck 110 and lower chuck 120 to move closer or further apart, thereby clamping and releasing the product 40 to be cleaned.
[0039] In some embodiments, the upper chuck 110 is made of Teflon, which will not chemically react with the cleaning agent.
[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0041] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An automatic terminal cleaning device, characterized in that, include: The chuck assembly includes an upper chuck (110) and a lower chuck (120) disposed opposite to the upper chuck (110). A first working surface (111) is provided on the side of the upper chuck (110) near the lower chuck (120). A cleaning fluid channel (130) is provided within the upper chuck (110), and the outlet (131) of the cleaning fluid channel (130) is located on the first working surface (111). The supply component (20) includes a cleaning fluid supply unit (210) and a solenoid valve (220); the cleaning fluid supply unit (210) is connected to the inlet (132) of the cleaning fluid channel (130) through a pipe (230), and the solenoid valve (220) is disposed on the pipe (230).
2. The automatic terminal cleaning device as described in claim 1, characterized in that, The outlet (131) is located at the center of the first working face (111).
3. The automatic terminal cleaning device as described in claim 1, characterized in that, The aperture of the outlet (131) is in the range of 1mm-2mm.
4. The automatic terminal cleaning device as described in claim 1, characterized in that, A quick connector (140) is fixedly connected to the inlet (132), and the pipe (230) is detachably connected to the upper clamp (110) through the quick connector (140).
5. The automatic terminal cleaning device as described in claim 1, characterized in that, It also includes a non-woven fabric (30) located between the first working surface (111) of the upper clamp (110) and the product to be cleaned (40); the lower clamp (120) has a second working surface (121) on the side near the upper clamp (110), and the second working surface (121) is used to contact the product to be cleaned (40).
6. The automatic terminal cleaning device as described in claim 1, characterized in that, The upper chuck (110) includes a side end face (112) adjacent to the first working surface (111), the inlet (132) is located on the side end face (112), and the cleaning fluid channel (130) includes a first channel (133) and a second channel (134) communicating with the first channel (133). The first channel (133) is parallel to the first working surface (111) and communicates with the inlet (132), and the second channel (134) is perpendicular to the first working surface (111) and communicates with the outlet (131).
7. The automatic terminal cleaning device as described in claim 6, characterized in that, Multiple second channels (134) are provided, and the multiple second channels (134) are arranged at equal intervals.
8. The automatic terminal cleaning device as described in claim 6, characterized in that, The length of the first channel (133) is 3mm-5mm.
9. The automatic terminal cleaning device as described in claim 6, characterized in that, It also includes an upper chuck cylinder (510), the upper chuck (110) includes a first mounting surface (113) adjacent to the first working surface (111) and the side end surface (112), the first mounting surface (113) is provided with a plurality of fixing holes (150), and the upper chuck (110) is connected to the upper chuck cylinder (510) through the fixing holes (150).
10. The automatic terminal cleaning device according to any one of claims 1-9, characterized in that, The upper chuck (110) is made of Teflon.