Air circuit piping structure for glass sheet polishing

Abstract

The utility model discloses a kind of air path pipeline structures of glass plate grinding. Including pedestal, rotary arm and the vacuum suction pad for sucking glass plate, rotary arm is provided with at least two mutually symmetrical guide posts and the upper bottom plate and lower bottom plate located at the both ends of guide post, slider is installed on guide post, pedestal is connected with slider by rotating mechanism, slider is vertically installed with air cylinder, the push head of air cylinder is connected with lower bottom plate, first conduit is installed at the air outlet of vacuum suction pad where lower bottom plate is located, slider is installed with second conduit for connecting vacuum pump, the other end of second conduit is provided with piston ring and inserts in first conduit. The utility model is set up mutually by first conduit and second conduit, and the style of one telescopic pipeline is presented to gas path, so that when vertical movement is carried out, single pipeline structure can be kept all the time, neither redundant pipeline messy feeling is generated, and neither does it need to set up redundant avoidance space in design.

Description

Technical Field

[0001] This utility model relates to the field of tempered glass film polishing technology, and in particular to a gas pipeline structure for glass plate polishing. Background Technology

[0002] As we all know, tempered glass screen protectors are protective films applied to mobile phone screens. Structurally, they mainly consist of an outer layer of tempered glass: high-definition glass that has undergone tempering treatment, providing screen protection and impact resistance; a middle layer of plastic or resin: increasing toughness and preventing injury from flying glass shards after breakage; and a bottom adhesive layer: using adhesive to bond to the screen for a secure hold. During the production of tempered glass screen protectors, the initial step is processing the outer tempered glass layer. In addition to cutting the glass sheets, the cut glass sheets are then individually transferred to tempered glass screen protector polishing equipment for further polishing.

[0003] Grinding glass cups primarily relies on a grinding fixture that vacuum-holds the glass plate, rotates it, and brings it into contact with a grinding disc for grinding. Because the glass plate is thin, flexible grinding discs are used. During grinding, the glass plate is in contact with the grinding disc, and the disc needs to be pressed down from above and below. For the fixture to hold the glass plate, a tubing is needed to connect to a vacuum pump. The most common method is to connect the vacuum pump directly with a flexible hose. Since it needs to accommodate vertical movement and rotation, it must be able to extend and retract. Therefore, the tubing usually needs to be sufficiently flexible, and allowances need to be made for extension distance (i.e., longer tubing) and space for tubing retraction. This design results in two problems for the grinding equipment: firstly, the tubing adds bulk to the product; secondly, avoiding tubing retraction requires more space, making the grinding equipment larger and less aesthetically pleasing. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a gas pipeline structure for glass plate grinding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gas pipeline structure for grinding glass plates includes a base, a rotating arm, and a vacuum suction cup for picking up glass plates. The rotating arm is provided with at least two mutually symmetrical guide columns and an upper base plate and a lower base plate located at both ends of the guide columns. A slider that can slide along the guide columns is installed on the guide columns. The base is connected to the slider through a rotating mechanism. A cylinder is vertically installed on the slider. The push head of the cylinder is connected to the lower base plate. The vacuum suction cup is installed on the lower base plate. A first conduit is installed on the lower base plate at the air extraction port of the vacuum suction cup. A second conduit for connecting a vacuum pump is installed on the slider. A piston ring is provided at the other end of the second conduit and inserted into the first conduit.

[0007] Preferably, the rotating mechanism includes a rotating tube and a hollow rotating platform. The rotating tube is mounted on the base via a bearing seat. The rotating tube is a central tube. One end of the rotating tube is connected to the rotating head of the hollow rotating platform, and the other end of the rotating tube is connected to a slider. The rotating tube has a third conduit inside. One end of the third conduit is inserted into the slider and communicates with a second conduit. The other end of the third conduit is connected to a vacuum pump.

[0008] The base is equipped with a solenoid valve for connecting a vacuum pump. The solenoid valve is connected to a vacuum breaking valve, which is connected to a third conduit via a flexible hose. The flexible hose is also connected to a vacuum sensor.

[0009] Preferably, the solenoid valve is connected to a vacuum filter, which is connected to a vacuum breaking valve via a three-way pipe and connected to a third conduit via a flexible hose.

[0010] By adopting the above solution, this utility model establishes a first and second conduit that interlock with each other, so that the air path presents a telescopic pipe pattern. This allows the single pipe structure to be maintained during vertical movement, avoiding the clutter of extra pipes and eliminating the need for additional clearance space in the design. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structural principle of an embodiment of the present utility model.

[0012] Figure 2 This is a cross-sectional view of an embodiment of the present utility model. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0016] like Figure 1 and Figure 2 As shown, this embodiment provides a gas pipeline structure for glass plate grinding, including a base 1, a rotating arm 2, and a vacuum suction cup 3 for picking up the glass plate. The rotating arm 2 is provided with at least two mutually symmetrical guide pillars 4 and an upper base plate 5 and a lower base plate 6 located at both ends of the guide pillars 4. A slider 7 that can slide along the guide pillars is installed on the guide pillars 4. The base 1 is connected to the slider 7 through a rotating mechanism 8. A cylinder 9 is vertically installed on the slider 7. The push head of the cylinder 9 is connected to the lower base plate 6. The vacuum suction cup 3 is installed on the lower base plate 6. A first conduit 10 is installed on the lower base plate 6 at the air extraction port of the vacuum suction cup 3. A second conduit 12 for connecting a vacuum pump (not shown in the figure because it is placed externally) is installed on the slider 7. A piston ring 13 is provided at the other end of the second conduit 12 and inserted into the first conduit 10.

[0017] This embodiment mainly uses the interlocking first conduit 10 and second conduit 12 to make the air path present a telescopic pipe pattern, so that when moving vertically, the single pipe structure can be maintained, which will not produce the clutter of extra pipes, and will not require extra clearance space in the design.

[0018] In actual operation, the rotating mechanism 8 rotates to make the suction cup face upwards, thus facilitating the suction of the glass plate. After the glass plate is successfully suctioned, the rotating mechanism 8 rotates back, and then the cylinder 9 pushes down. The slider 7 and the base 1 are relatively stationary, meaning the entire rotating arm 2 moves downwards relative to the base 1, allowing the glass plate suctioned by the vacuum suction cup 3 to contact and grind the grinding disc below. During the downward movement, the first guide tube 10 and the second guide tube 12 are in a state of mutual stretching, and the piston ring 13 acts as a seal during the stretching process. At the same time, when the cylinder 9 retracts, the first guide tube 10 and the second guide tube 12 are in a state of contraction. This stretching and contraction effectively adapts to the vertical movement of the pipeline.

[0019] Furthermore, regarding the design of the rotating mechanism 8, in this embodiment, the rotating mechanism 8 includes a rotating tube 81 and a hollow rotating platform 82. The rotating tube 81 is mounted on the base 1 via a bearing seat 83. The rotating tube 81 is a central tube. One end of the rotating tube 81 is connected to the rotating head of the hollow rotating platform 82, and the other end of the rotating tube 81 is connected to the slider 7. The rotating tube 81 has a built-in third conduit 84. One end of the third conduit 84 is inserted into the slider 7 and communicates with the second conduit 12. The other end of the third conduit 84 is connected to the vacuum pump 11. This design allows the pipes to be arranged internally, which is very concealed and improves the overall neatness. Moreover, this design makes it easy to add a dust cover externally, avoiding conflicts between the installation position of the dust cover and the pipes.

[0020] Furthermore, in this embodiment, a solenoid valve 14 for connecting a vacuum pump is installed on the base. The solenoid valve 14 is connected to a vacuum breaking valve 11, which is connected to a third conduit 83 via a flexible hose. The flexible hose (not shown in the figure) is also connected to a vacuum sensor 15 (pressure transmitter). The function of the vacuum sensor 15 is to detect the vacuum pressure value in real time when the vacuum suction cup 3 picks up the glass plate. When the glass plate is being picked up, if it is found that the picking action has been completed but no negative pressure value is detected, it can be determined that either the glass plate is broken or the glass plate has not been picked up. This characteristic is used to check whether the glass plate is damaged or whether the material has been successfully picked up. This information can be directly fed back to the main control system of the tempered glass film polishing equipment for subsequent early warning work.

[0021] Furthermore, the solenoid valve in this embodiment is connected to a vacuum filter 16, which is connected to the vacuum breaking valve 11 via a three-way pipe 17 and to the third conduit 83 via a flexible hose. This arrangement is mainly to ensure that the air entering the vacuum pump is clean, because the vacuum suction cup 3 is located in the environment of glass plate grinding, which is both humid and dusty. Therefore, the vacuum filter 16 is provided to avoid damage to the vacuum pump.

[0022] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gas pipeline structure for grinding glass plates, characterized in that: The device includes a base, a rotating arm, and a vacuum suction cup for picking up glass plates. The rotating arm has at least two symmetrical guide pillars and an upper base plate and a lower base plate located at both ends of the guide pillars. A slider that can slide along the guide pillars is installed on the guide pillars. The base is connected to the slider via a rotating mechanism. A cylinder is vertically installed on the slider. The push head of the cylinder is connected to the lower base plate. The vacuum suction cup is installed on the lower base plate. A first conduit is installed on the lower base plate at the air extraction port of the vacuum suction cup. A second conduit for connecting a vacuum pump is installed on the slider. A piston ring is provided at the other end of the second conduit and inserted into the first conduit.

2. The gas pipeline structure for glass plate grinding as described in claim 1, characterized in that: The rotating mechanism includes a rotating tube and a hollow rotating platform. The rotating tube is mounted on the base via a bearing seat. The rotating tube is a central tube. One end of the rotating tube is connected to the rotating head of the hollow rotating platform, and the other end of the rotating tube is connected to a slider. The rotating tube has a third conduit inside. One end of the third conduit is inserted into the slider and communicates with a second conduit. The other end of the third conduit is connected to a vacuum pump.

3. The gas pipeline structure for glass plate grinding as described in claim 2, characterized in that: The base is equipped with a solenoid valve for connecting a vacuum pump. The solenoid valve is connected to a vacuum breaking valve, which is connected to a third conduit via a flexible hose. The flexible hose is also connected to a vacuum sensor.

4. The gas pipeline structure for glass plate grinding as described in claim 3, characterized in that: The solenoid valve is connected to a vacuum filter, which is connected to a vacuum breaking valve via a three-way pipe and to a third conduit via a flexible hose.

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