Glass cold end on-line cleaning device

Abstract

The invention belongs to the technical field of glass production, and particularly discloses a glass cold end online cleaning device and a cleaning method thereof.The device comprises a rack and a supporting frame, a first lifting device is installed on the rack, and the output end of the first lifting device is connected with at least two second lifting devices; the second lifting device is fixedly connected with a guide part, the guide part is connected to the supporting frame in an up-down sliding mode, the lower side of the supporting frame is connected with an abutting block used for abutting against glass in a sliding mode, sliding of the upper side of the abutting block is limited, and when the abutting block moves to the uppermost end, the lower end of the abutting block does not protrude out of the supporting frame. The output end of the second lifting device operably abuts against the supporting frame, the upper side of the supporting frame is fixedly connected with a first cover body, a second cover body is arranged outside the first cover body, a cleaning channel is formed between the first cover body and the second cover body, and the first cover body and the second cover body are connected with a wind power system. And the device can approach glass for deep cleaning or forming protection and pressing positioning, so that the surface quality of the glass is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of glass production, and particularly relates to an on-line cleaning device for the cold end of glass and a cleaning method thereof. Background Art

[0002] On-line cleaning at the cold end of glass is a key link in glass deep processing, directly affecting the surface quality and optical properties of the finished product. In the prior art, most cleaning devices adopt a fixed structure and have a large gap from the glass, resulting in a large suction loss; at the same time, some cleaning devices can adjust their positions through a guiding structure, but most traditional guiding structures are designed for single-axis linear motion and have poor anti-offset load capacity. When the glass has uneven thickness or warping, it is easy to generate running deviation, causing cleaning blind spots. In addition, the negative pressure adsorption system has a risk of pollutant backflow, and the pressure adjustment depends on manual experience, making it difficult to achieve dynamic balanced control of multiple contact points and easily reducing the surface quality and processing accuracy of thin plate glass. Summary of the Invention

[0003] In view of the problems in the prior art, an on-line cleaning device for the cold end of glass and a cleaning method thereof are proposed, aiming to perform in-depth cleaning close to the glass or form protection and pressing positioning to ensure the surface quality of the glass. The present invention provides the following technical solutions:

[0004] An on-line cleaning device for the cold end of glass, comprising a frame, a wind power system, and a support frame for approaching or abutting against the glass. A first lifting device is installed on the frame, and at least two second lifting devices are connected to the output end of the first lifting device; a guiding member is fixedly connected to the second lifting device, and the guiding member is slidably connected to the support frame up and down. A butting block for abutting against the glass is slidably connected to the lower side of the support frame. The upper side of the butting block is restricted in sliding, and when the butting block moves to the uppermost end, the lower end of the butting block does not protrude from the support frame. The output end of the second lifting device can be operably abutted against the support frame. A first cover is fixedly connected to the upper side of the support frame, and a second cover is arranged outside the first cover. A cleaning channel is formed between the first cover and the second cover, and the cleaning channel is connected to the wind power system.

[0005] Preferably, a first check valve for blowing air downward unidirectionally is installed in the first cover, and a pressure channel is formed in the first cover.

[0006] Preferably, a second check valve for sucking air upward unidirectionally is installed between the first cover and the second cover.

[0007] Preferably, a first pressure sensor is installed on the support frame, and the butting block can be operably abutted against the first pressure sensor upward.

[0008] Preferably, a first elastic device is connected between the butting block and the first pressure sensor.

[0009] Preferably, an elastic pad is fixedly connected to the bottom of the support frame.

[0010] A method for on-line cleaning of the cold end of glass, using an on-line cleaning device for the cold end of glass, comprises the following steps:

[0011] S1. Lower the cleaning channel and approach the upper side of the glass through the first lifting device;

[0012] S2. Each abutting block abuts against the glass respectively and transmits the reaction force to the first pressure sensor, and the first pressure sensor uploads the pressure data to the controller;

[0013] S3. The output end of the second lifting device extends downward and abuts against the support frame;

[0014] S4. The output end of the second lifting device continues to extend downward, so that the lower end part or all of the abutting blocks move into the support frame;

[0015] S5. The wind power system provides negative pressure to the cleaning channel;

[0016] S6. Lift the cleaning channel away from the production line through the first lifting device.

[0017] Preferably, in step S4, the subsequent elongation amount is adjusted according to the pressure data measured by each first pressure sensor, so that the pressure data measured by each first pressure sensor is kept consistent.

[0018] Preferably, in step S6, when separating from the production line, the wind power system provides positive pressure to the first cover body.

[0019] Preferably, if the glass is to be ground, positive pressure is input into the first cover body before grinding to balance the pressure of the support frame or the abutting blocks, and the support frame or the abutting blocks continuously abut against the glass during grinding and continuously provide negative pressure to the cleaning channel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the synergistic action of the first lifting device, the second lifting device and the guiding member, and in combination with the guiding structure arranged in a square shape, the device significantly improves the linear motion accuracy and the anti-eccentric load capacity. The design of the elastic pad at the bottom of the support frame provides contact buffering while ensuring the positioning accuracy, effectively avoiding damage to the glass surface caused by rigid contact. The cross-shaped sliding structure of the abutting blocks further enhances the anti-torsion ability and prevents running deviation;

[0022] 2. The design of the two-way check valve is adopted. The first check valve prevents the backflow of pollutants, and the second check valve improves the recovery efficiency, forming a directional negative pressure adsorption field. The connection design of the pressure channel and the cleaning channel simplifies the equipment structure, reduces the cost and energy consumption;

[0023] 3. A distributed pressure sensing network is formed by the first pressure sensor, the abutting block and the first elastic device to monitor the pressure at each contact point in real time. The controller automatically adjusts the elongation of the lifting device to achieve dynamic balance of the contact pressure, which can avoid glass breakage caused by excessive local pressure and is particularly suitable for glass processing scenarios with different thicknesses or surface flatness differences. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the flowchart of the method of the present invention;

[0025] Figure 2 is the axonometric structure schematic diagram of the present invention;

[0026] Figure 3 is the three-dimensional structure schematic diagram of the present invention;

[0027] Figure 4 is the sectional structure schematic diagram of the present invention;

[0028] Figure 5 is the structure schematic diagram when the abutting block of the present invention accounts for a relatively large proportion;

[0029] In the drawings, 1, the first lifting device; 2, the connecting rod; 3, the second lifting device; 4, the guiding member; 5, the support frame; 51, the cross-shaped groove; 6, the first cover body; 61, the first check valve; 7, the second cover body; 71, the second check valve; 8, the abutting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. The directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only references to the directions in the drawings. Therefore, the directional terms used are for illustration rather than limitation of the present invention.

[0031] Embodiment 1

[0032] As Figure 2As shown in the figure, an on-line cleaning device for the cold end of glass includes a frame, a wind power system, and a support frame 5 for approaching or abutting against the glass. A first lifting device 1 is installed on the frame, and the output end of the first lifting device 1 is connected to at least two second lifting devices 3. A guiding member 4 is fixedly connected to the second lifting device 3, and the guiding member 4 is slidably connected to the support frame 5 up and down. Abutting block 8 for abutting against the glass is slidably connected to the lower side of the support frame 5. The upper side of the abutting block 8 is restricted in sliding, and when the abutting block 8 moves to the uppermost end, the lower end of the abutting block 8 does not protrude from the support frame 5. The output end of the second lifting device 3 can be operably abutted against the support frame 5. A first cover 6 is fixedly connected to the upper side of the support frame 5, and a second cover 7 is arranged outside the first cover 6. A cleaning channel is formed between the first cover 6 and the second cover 7, and the cleaning channel is connected to the wind power system.

[0033] Specifically, a connecting rod 2 is connected between the first lifting device 1 and the second lifting device 3. Four guiding members 4 are fixedly connected to each second lifting device 3 and are arranged in a square shape, which improves the straightness and stability and eliminates the influence of lateral eccentric load.

[0034] Specifically, the guiding member 4 is a round rod, and the first lifting device 1 and the second lifting device 3 can be a cylinder or a screw nut paired with a servo motor.

[0035] As Figure 3 shown in the figure, specifically, the support frame 5 is square, and a cross-shaped connecting frame can be optionally connected to the inside thereof. The periphery of the support frame 5 is an arc-shaped slope, which provides a smooth transition for impurities or fragments and improves the suction capacity.

[0036] Specifically, the cross section of the abutting block 8 is cross-shaped, and a matching cross-shaped groove 51 is opened on the support frame 5 for the abutting block 8 to be slidably connected. It has high stability, prevents rotation deviation and enhances the anti-torsion ability.

[0037] Furthermore, an elastic pad is fixedly connected to the bottom of the support frame 5, which provides contact buffer protection while ensuring the positioning accuracy.

[0038] Furthermore, a traveling device is also arranged on the frame, and the first lifting device 1 is installed on the traveling device to realize precise positioning and rapid moving operation in three-dimensional space.

[0039] Embodiment 2

[0040] As Figure 4 shown in the figure, on the basis of Embodiment 1, a first check valve 61 for blowing air downward unidirectionally is installed in the first cover 6 to form a directional air flow barrier to prevent the backflow of pollutants.

[0041] Further, a second check valve 71 for unidirectional upward air suction is installed between the first cover body 6 and the second cover body 7 to construct a two-way air flow control system and improve the cleaning medium recovery efficiency.

[0042] The pressure channel and the cleaning channel are connected and jointly connected to the wind power system, which can reduce the complexity and cost of the equipment and automatically synchronously switch the working state.

[0043] Embodiment 3

[0044] Different from Embodiment 2, the pressure channel and the cleaning channel are not connected. The wind power system is provided with two groups of independent connection channels. The wind power system can be respectively connected to the pressure channel and the cleaning channel to provide independent air flow regulation capabilities and meet the requirements of different process parameters.

[0045] Embodiment 4

[0046] Based on Embodiment 1 or 2 or 3, a first pressure sensor is installed on the support frame 5, and the abutting block 8 can be operably abutted upward against the first pressure sensor.

[0047] Further, a first elastic device is connected between the abutting block 8 and the first pressure sensor. Specifically, the first elastic device can adopt a compression spring, and the upper and lower ends are respectively abutted against the first pressure sensor and the abutting block 8.

[0048] Embodiment 5

[0049] A method for online cleaning at the cold end of glass uses an online cleaning device at the cold end of glass, including the following steps:

[0050] Pretreatment: Move to a designated location on the glass cold end production line through the traveling device.

[0051] S1. Lower the cleaning channel by the first lifting device 1 and approach the upper side of the glass to establish a preparatory working space;

[0052] S2. Each abutting block 8 respectively abuts against the glass and transmits the reaction force to the first pressure sensor, and the first pressure sensor uploads the pressure data to the controller to construct a distributed pressure sensing network;

[0053] S3. The output end of the second lifting device 3 extends downward, abuts against the support frame 5 for adjustment preparation, and starts the multi-point collaborative pressure application mechanism;

[0054] S4. The output end of the second lifting device 3 continues to extend downward, so that the lower end part or all of the abutting block 8 moves into the support frame 5 to realize the dynamic adjustment of the contact state;

[0055] Adjust the subsequent elongation according to the pressure data measured by each first pressure sensor to make the pressure data measured by each first pressure sensor consistent, and realize the self-balancing adjustment of the contact pressure.

[0056] S5. The wind power system provides negative pressure to the cleaning channel to form a directional negative pressure adsorption field;

[0057] S6. Lift the cleaning channel away from the production line through the first lifting device 1.

[0058] When leaving the production line, the wind power system provides positive pressure to the first cover 6, and the additional air flow back-blowing function ensures the cleanliness of the device when leaving the site.

[0059] If the glass needs to be ground, positive pressure is input into the first cover 6 before grinding to balance the pressure of the support frame 5 or the abutting block 8. The support frame 5 or the abutting block 8 continuously abuts against the glass during grinding, and continuously provides negative pressure to the cleaning channel. The additional air flow back-blowing function ensures the cleanliness of the device when leaving the site, forming a grinding-cleaning composite process integration scheme.

[0060] Furthermore, a tof depth sensor for detecting the straightness of the cutting line is installed on the support frame 5. The tof depth sensor is arranged obliquely. Through the depth position information, a grinding path line is constructed, and the grinding amount is judged according to the change of the grinding path line. The non-linear change part is marked as the subsequent compensation area, and the wear amount of this area is compensated to make it tend to linear change, improving the grinding quality.

[0061] Among them, the proportion of the abutting block 8 relative to the edge of the support frame 5 can be adjusted. For example Figure 4 As shown, when the proportion of the abutting block 8 is larger and the parallelism between the bottom surface of the elastic pad and the glass plane is poor, it can be used as the main support. Among them, according to the change range of each first pressure sensor on each side during the downward elongation of the output end of the second lifting device 3, that is, when the abutting block 8 contracts into the support frame 5, the relative height difference of each point can be judged, so as to calculate the inclination degree, and compensation is made through the abutting block 8 as the main support.

Claims

1. An on-line cleaning device for the cold end of glass, characterized in that, It includes a frame, a wind power system, and a support frame (5) for approaching or abutting against glass. A first lifting device (1) is installed on the frame, and at least two second lifting devices (3) are connected to the output end of the first lifting device (1); a guide member (4) is fixedly connected to the second lifting device (3), the guide member (4) is slidably connected to the support frame (5) up and down, a butting block (8) for abutting against the glass is slidably connected to the lower side of the support frame (5), the upper side of the butting block (8) is restricted in sliding, and when the butting block (8) moves to the uppermost end, the lower end of the butting block (8) does not protrude from the support frame (5), the output end of the second lifting device (3) can be operably abutted against the support frame (5), a first cover body (6) is fixedly connected to the upper side of the support frame (5), a second cover body (7) is arranged outside the first cover body (6), a cleaning channel is formed between the first cover body (6) and the second cover body (7), and the cleaning channel is connected to the wind power system.

2. The on-line cleaning device for the cold end of glass according to claim 1, characterized in that, A first check valve (61) for blowing downward unidirectionally is installed in the first cover body (6).

3. The glass cold-end on-line cleaning device according to claim 2, wherein A second check valve (71) for sucking air upward unidirectionally is installed between the first cover body (6) and the second cover body (7).

4. The glass cold-end on-line cleaning device according to claim 1 or 3, characterized in that, A first pressure sensor is installed on the support frame (5), and the butting block (8) can be operably abutted upward against the first pressure sensor.

5. The online cleaning device for the cold end of glass according to claim 4, wherein, A first elastic device is connected between the butting block (8) and the first pressure sensor.

6. The on-line cleaning device for the cold end of glass according to claim 1 or 3, characterized in that An elastic pad is fixedly connected to the bottom of the support frame (5).

7. An on-line cleaning method for the cold end of glass, characterized in that, Using the glass cold-end online cleaning device as described in claim 1, it includes the following steps: S1. Lower the cleaning channel close to the upper side of the glass through the first lifting device (1). S2. Each butting block (8) abuts against the glass respectively and transmits the reaction force to the first pressure sensor, and the first pressure sensor uploads the pressure data to the controller. S3. The output end of the second lifting device (3) extends downward and abuts against the support frame (5). S4. The output end of the second lifting device (3) continues to extend downward to make the lower end part or all of the butting block (8) move into the support frame (5). S5. The wind power system provides negative pressure to the cleaning channel. S6. Lift the cleaning channel away from the production line through the first lifting device (1).

8. The online cleaning method for the cold end of glass according to claim 7, characterized in that, In step S4, adjust the subsequent elongation amount according to the pressure data measured by each first pressure sensor to make the pressure data measured by each first pressure sensor consistent.

9. The online cleaning method for the cold end of glass according to claim 7, characterized in that, In step S6, when separating from the production line, the wind power system provides positive pressure to the first cover body (6).

10. The on-line cleaning method for the cold end of glass according to claim 7, characterized in that, If the glass is to be ground, input positive pressure into the first cover body (6) before grinding to balance the pressure of the support frame (5) or the butting block (8), the support frame (5) or the butting block (8) continuously abuts against the glass during grinding, and continuously provides negative pressure to the cleaning channel.

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