Glass feeding and discharging unit for vertical coating line

Abstract

The utility model belongs to the technical field of evaporation, and relates to a glass loading and unloading unit for a vertical coating line, which comprises a transfer mechanism and a bracket, the transfer mechanism comprises a six-axis manipulator and an adsorption frame arranged at the tail end of the six-axis manipulator, and the adsorption frame is of a bar grid structure; comprising a connecting beam, a plurality of supporting rods vertically fixed to the connecting beam and suction cups arranged on the front faces of the supporting rods at intervals, the back face of the connecting beam is connected to the tail end of the six-axis mechanical arm, all the supporting rods are parallel, and the suction faces of all the suction cups are coplanar. A fork-shaped supporting table and at least two frame limiting pieces located on the edge of the fork-shaped supporting table are arranged on the upper portion of the bracket, the upper surface of the fork-shaped supporting table is horizontal, and the structure of the fork-shaped supporting table is matched with the adsorption frame in a crossed mode. The transferring mechanism and the bracket of the glass loading and unloading unit are not in contact with the film coating surface of the glass, so that traces influencing the film coating quality are not left on the front surface of the glass, and the film coating quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation, and in particular to a glass loading and unloading unit for a vertical coating line. Background Art

[0002] Vertical vacuum coating machine is a device that transports the coated plate in a vertical state and completes the coating. With vertical transportation, two channels for round-trip transportation are generally required. Because the thickness of the coated plate is not very large, the width of each channel needs to be very low, and the factory building can always meet the height requirements of the coated plate, so the width occupied by the equipment is very small. Therefore, vertical vacuum coating machines are currently used by many manufacturers.

[0003] Before coating, the glass needs to be fixed in a vertical position in the conveyor, which puts forward several special requirements for loading and unloading:

[0004] 1. The glass needs to be fixed in the fixed frame of the conveying device. The fixed frame needs to clamp the edge of the glass. Therefore, the edge clamping method cannot be used to complete the glass movement. It can only be transferred by vacuum adsorption;

[0005] 2. The coated surface of the glass must be kept clean, so the loading and unloading units cannot touch the coated surface. Therefore, when the glass is placed horizontally, the coated surface should be facing upward, and the suction and placement should also be aimed at the back of the glass;

[0006] 3. Glass is fragile, so the speed must be strictly controlled during its movement, otherwise there is a risk of falling and breaking. The larger the area of ​​glass, the greater the risk.

[0007] Chinese patent CN206048234U only discloses a glass substrate handling robot bar grid manipulator, which can use finger forks to hold the lower part of the glass substrate from below and use suction cups to suck the glass substrate. However, this is only a device that can move the glass substrate horizontally, and does not involve how to better flip the glass. It is reliable for use in a vertical coating line.

[0008] Therefore, it is necessary to design a glass loading and unloading unit specifically suitable for vertical coating lines to solve the above problems. Utility Model Content

[0009] The main purpose of the utility model is to provide a glass loading and unloading unit for a vertical coating line, which can automatically complete the replacement of the mask plate on the carrier and the substrate in an independent space, avoiding the gap in the structure affecting the vacuum pumping speed of the evaporation equipment.

[0010] The utility model achieves the above-mentioned purpose through the following technical scheme: a glass loading and unloading unit for a vertical coating line, including a transfer mechanism and a bracket, the transfer mechanism including a six-axis manipulator and an adsorption frame arranged at the end of the six-axis manipulator, the adsorption frame is a bar grid structure, including a connecting beam, a plurality of support rods vertically fixed on the connecting beam, and suction cups spaced apart on the front of the support rods, the back of the connecting beam is connected to the end of the six-axis manipulator, all support rods are parallel to each other, and the adsorption surfaces of all suction cups are coplanar, and a fork-shaped support is provided on the upper part of the bracket, the upper surface of the fork-shaped support is horizontal, and the structure is cross-matched with the adsorption frame.

[0011] Specifically, the same end of the support rods is fixed to the front side of the connecting beam and the distribution of the support rods is symmetrical along the mirror plane of the connecting beam.

[0012] Furthermore, a connecting tube fixed to the end of the six-axis manipulator is provided on the back side of the connecting beam at an angle of 45°, the axis of the connecting tube is colinear with the rearmost rotating axis of the six-axis manipulator and is located in the mirror plane of the connecting beam, and the inclination direction of the connecting tube is away from the center of the support rod.

[0013] Furthermore, the forked support platform includes two long support rods and a plurality of short support rods evenly distributed between the two long support rods, the long support rods are longer than the short support rods, and the long support rods are flush with the short support rods at one end away from the transfer mechanism.

[0014] Specifically, at least two frame limiters are provided on the edge of the fork-shaped support platform.

[0015] The beneficial effects of the technical solution of the utility model are:

[0016] When loading the glass loading and unloading unit, the glass is placed on the fork-shaped support in a horizontal position, and the adsorption rack can extend under the fork-shaped support; because the fork-shaped support and the adsorption rack have a matching relationship in structure, the adsorption rack will not touch the fork-shaped support when it is raised, but can make the glass detach from the support. At this time, the suction cups are located under the glass and then suck the back of the glass to prevent the glass from falling during the flipping; then the six-axis manipulator will adjust the glass to a vertical position, so that the front of the glass is pushed inward into the glass fixing frame, and after the automatic clamp clamps the edge of the glass, the suction cup breaks the vacuum, and the glass remains on the walking mechanism. The walking drive mechanism can drive the walking mechanism with the glass into the vertical coating equipment to coat the front of the glass. Because the transfer mechanism and the bracket will not touch the coating surface of the glass, no traces that affect the coating quality will be left on the front of the glass, thereby ensuring the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the position relationship diagram of the glass loading and unloading unit and the conveying unit;

[0018] Figure 2 This is a state diagram when the adsorption rack takes the glass from the bracket;

[0019] Figure 3 The state diagram of the suction rack fixing the glass to the conveying unit.

[0020] The numbers in the figure represent:

[0021] 1-Glass loading and unloading unit,

[0022] 11-transfer mechanism, 111-six-axis manipulator, 112-adsorption rack, 1121-connecting beam, 11211-connecting pipe, 1122-support rod, 1123-suction cup,

[0023] 12-bracket, 121-forked support platform, 1211-long support rod, 1212-short support rod, 122-frame limiter;

[0024] 2-Conveying unit,

[0025] 21-transport bracket, 211-travel drive mechanism,

[0026] 22-travel mechanism, 221-glass fixing frame, 2211-automatic clamp;

[0027] 3- Glass. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with specific embodiments.

[0029] Example:

[0030] like Figures 1 to 3 As shown, the glass loading and unloading unit 1 for a vertical coating line of the utility model comprises a transfer mechanism 11 and a bracket 12. The transfer mechanism 11 comprises a six-axis manipulator 111 and an adsorption frame 112 arranged at the end of the six-axis manipulator 111. The adsorption frame 112 is a bar grid structure, comprising a connecting beam 1121, a plurality of support rods 1122 vertically fixed on the connecting beam 1121, and suction cups 1123 spaced apart on the front sides of the support rods 1122. The back side of the connecting beam 1121 is connected to the end of the six-axis manipulator 111, all the support rods 1122 are parallel to each other, and the adsorption surfaces of all the suction cups 1123 are coplanar. A fork-shaped support platform 121 is provided on the upper part of the bracket 12. The upper surface of the fork-shaped support platform 121 is horizontal, and the structure is cross-matched with the adsorption frame 112.

[0031] The glass loading and unloading unit 1 is used in conjunction with the conveying unit 2, which includes a conveying bracket 21 and a traveling mechanism 22. The conveying bracket 21 is open on one side facing the transfer mechanism 11 to allow the glass 3 to enter, and one end of the conveying bracket 21 is connected to the vertical coating equipment. The traveling mechanism 22 includes a vertically arranged glass fixing frame 221 and a plurality of automatic clamps 2211 arranged on the inner edge of the glass fixing frame 221. A traveling drive mechanism 211 is provided on the conveying bracket 22 to enable the traveling mechanism 22 to move horizontally.

[0032] When loading, the glass 3 is placed on the fork-shaped support 121 in a horizontal posture, and the suction frame 112 can extend to the bottom of the fork-shaped support 121; because the fork-shaped support 121 and the suction frame 112 have a coordinated structure, the suction frame 112 will not touch the fork-shaped support 121 when it is raised, and the glass 3 can be separated from the bracket 12. At this time, the suction cup 1123 is located under the glass 3 and then sucks the back of the glass 3 to prevent the glass 3 from falling during the flipping; then the six-axis manipulator 111 will adjust the glass 3 to a vertical posture, so that the front of the glass 3 is pushed inward into the glass fixing frame 221, and after the automatic clamp 2211 clamps the edge of the glass 3, the suction cup 3 breaks the vacuum, and the glass 3 remains on the walking mechanism 22, and the walking drive mechanism 211 can drive the walking mechanism 22 with the glass 3 into the vertical coating equipment to coat the front of the glass 3; when unloading, the actions are opposite to the above steps. Because the transfer mechanism 11 and the bracket 12 will not contact the coated surface of the glass 3 (ie, the front side of the glass 3), no traces that affect the coating quality will be left on the front side of the glass 3, thereby ensuring the coating quality.

[0033] like Figures 1 to 3 As shown, the same end of the support rod 1122 is fixed to the front side of the connecting beam 1121 and the distribution of the support rod 1122 is symmetrical along the mirror plane of the connecting beam 1121 .

[0034] The connecting beam 1121 is located at one end of the supporting rod 1122, so the connection position between the adsorption frame 112 and the six-axis manipulator 111 is biased to one side of the adsorption frame 112. The action of the transfer mechanism 11 is to hold up the horizontally placed glass 3, and then adjust it to a vertical posture and place it in the glass fixing frame 221, so that the six-axis manipulator 111 does not need to extend under the fork-shaped support platform 121, which can reduce the movement amplitude of the six-axis manipulator 111 and help reduce the shaking of the glass 3 during the transfer process, thereby reducing the risk of falling and breaking the plate.

[0035] like Figures 1 to 3 As shown, a connecting tube 11211 fixed to the end of the six-axis manipulator 121 is arranged on the back side of the connecting beam 1121 at an angle of 45°. The axis of the connecting tube 11211 is colinear with the rearmost rotating axis of the six-axis manipulator 121 and is located in the mirror plane of the connecting beam 1121. The inclination direction of the connecting tube 11211 is away from the center of the support rod 1122.

[0036] Because the adsorption rack 112 also needs to place the glass 3 onto the conveying unit 2, the position of the six-axis manipulator 121 also needs to avoid the glass fixing frame 221 and the walking drive mechanism 211. Therefore, the connecting tube 11211 should make the connecting position tilt backward and cannot be directly set on the side of the adsorption rack 112.

[0037] like Figure 2 As shown, the forked support platform 121 includes two long support rods 1211 and a plurality of short support rods 1212 evenly distributed between the two long support rods 1211 . The long support rods 1211 are longer than the short support rods 1212 , and the long support rods 1211 and the short support rods 1212 are flush at one end away from the transfer mechanism 11 .

[0038] In order to reduce the risk of glass 3 breaking, the glass 3 placed on the fork-shaped support platform 121 needs to provide a sufficiently large support range, so the long support rod 1211 can provide sufficient support length for the inner side of the long side of the glass 3. In addition to providing support, the short support rod 1212 also needs to consider avoiding the moving path of the connecting beam 1121, so it needs to be shorter than the long support rod 1211.

[0039] like Figure 1 and Figure 2 As shown, at least two frame stoppers 122 are disposed on the edge of the fork-shaped support platform 121 .

[0040] The relative position of the glass 3 on the fork-shaped support 121 needs to be limited by the frame limiter 122. The frame limiter 122 is an L-shaped structure, so it can provide two reference surfaces. The frame limiter 122 can be limited to the same side of the glass 3, or to the two ends of the diagonal of the glass 3.

[0041] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A glass loading and unloading unit for a vertical coating line, characterized in that: It includes a transfer mechanism and a bracket, the transfer mechanism includes a six-axis manipulator and an adsorption frame arranged at the end of the six-axis manipulator, the adsorption frame is a bar grid structure, including a connecting beam, a plurality of support rods vertically fixed on the connecting beam, and suction cups spaced apart on the front of the support rods, the back of the connecting beam is connected to the end of the six-axis manipulator, all support rods are parallel to each other, and the adsorption surfaces of all suction cups are coplanar, the upper part of the bracket is provided with a fork-shaped support platform and at least two frame limiters located at the edge of the fork-shaped support platform, the upper surface of the fork-shaped support platform is horizontal, and the structure is cross-matched with the adsorption frame.

2. The glass loading and unloading unit for a vertical coating line according to claim 1, characterized in that: The same end of the support rod is fixed to the front side of the connecting beam and the distribution of the support rod is symmetrical along the mirror plane of the connecting beam.

3. The glass loading and unloading unit for a vertical coating line according to claim 2, characterized in that: A connecting tube fixed to the end of the six-axis manipulator is provided on the back side of the connecting beam at an angle of 45°. The axis of the connecting tube is colinear with the rotation axis at the end of the six-axis manipulator and is located in the mirror plane of the connecting beam. The inclination direction of the connecting tube is away from the center of the support rod.

4. The glass loading and unloading unit for a vertical coating line according to claim 2, characterized in that: The forked support platform comprises two long support rods and a plurality of short support rods evenly distributed between the two long support rods. The long support rods are longer than the short support rods, and the long support rods are flush with the short support rods at one end away from the transfer mechanism.

5. The glass loading and unloading unit for a vertical coating line according to claim 1, characterized in that: At least two frame limiters are arranged at the edge of the fork-shaped support platform.

Images