A display screen transfer device

Abstract

This utility model relates to the field of screen handling equipment, specifically disclosing a display screen transfer device, comprising: a mounting frame, movably mounted; an adsorption component, mounted on the mounting frame; an external triggering element, mounted on an external frame; a contact block, movably mounted on the mounting frame, the contact block being used to abut against a workpiece and apply an upward supporting force to the workpiece; and an inner transfer block, movably mounted on the mounting frame, the inner transfer block being drively connected to the contact block, the movement of the inner transfer block causing the contact block to abut against or move away from the workpiece; when the mounting frame moves along a predetermined trajectory, the external triggering element triggers the inner transfer block to move relative to the mounting frame. This display screen transfer device, without requiring an additional power source, automatically protects the adsorbed workpiece by simply touching the external triggering element when the device moves along a predetermined trajectory, preventing the workpiece from falling.

Description

Technical Field

[0001] This application belongs to the field of screen production equipment, and more specifically, relates to a display screen transfer device. Background Technology

[0002] In the screen production process, vacuum suction cups are often used to move products. However, there are safety accidents such as aging and deformation of the suction cup rubber, and uneven screen surface causing the suction cup to fail to fully adhere to the object surface, resulting in the adsorbed object falling and being damaged.

[0003] Patent No. CN114803512A discloses a suction cup device and method for preventing glass from falling during glass processing and conveying. The device has a mounting plate on both sides with connecting rod assemblies symmetrically installed. The connecting rod assemblies work symmetrically on both sides of the mounting plate. The driving device drives the connecting rod assemblies to adsorb and support the glass, preventing the glass from falling and improving the stability during the glass conveying process.

[0004] While this application addresses the problems in the background technology to some extent, it has the following issues: the linkage assembly requires an additional drive device to support the screen, which is not suitable for arranging complex electrical components in a semi-automatic production line, and there is a risk of the screen falling and being damaged due to loss of power in extreme environments. Utility Model Content

[0005] The purpose of this application is to provide a display screen transfer device to solve the technical problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide a display screen transfer device, comprising:

[0007] Mounting rack, activity settings;

[0008] An adsorption assembly is mounted on the mounting bracket;

[0009] External triggers are used to be mounted on external racks;

[0010] A contact block, movably mounted on the mounting bracket, is used to abut against the workpiece and apply an upward supporting force to the workpiece;

[0011] An inner transfer block is movably mounted on the mounting frame. The inner transfer block is connected to the contact block in a transmission manner. The movement of the inner transfer block causes the contact block to abut against or move away from the workpiece.

[0012] When the mounting bracket moves along a predetermined trajectory, the outer trigger triggers the inner transmission block to move relative to the mounting bracket.

[0013] Preferably, the contact block is used to abut the bottom surface of the workpiece; after the adsorption assembly adsorbs the workpiece, the external trigger triggers the movement of the inner transfer block; before the adsorption assembly releases the adsorption, the external trigger triggers the movement of the inner transfer block.

[0014] Preferably, there are multiple contact blocks, one of which corresponds to a corner of the workpiece, and the line connecting the multiple contact blocks passes through the center of gravity of the workpiece or the area enclosed by the contact blocks includes the center of gravity of the workpiece.

[0015] Preferably, four contact blocks are provided, and the four contact blocks respectively cooperate with the four corners of the workpiece.

[0016] Preferably, the inner transfer block is slidably disposed vertically relative to the mounting frame; a transfer link and a contact link are provided between the inner transfer block and the contact block, one end of the transfer link is hinged to the inner transfer block; one end of the contact link is hinged to the mounting frame, and the other end is hinged to the end of the transfer link away from the inner transfer block, the inner transfer block, the transfer link, and the contact link form a crank-slider mechanism; the contact link is connected to the contact block, and the contact block connected to the contact link engages with the nearest corner of the workpiece.

[0017] Preferably, multiple contact blocks are integrated with the inner transfer block into one unit; the mounting frame includes a vertical beam and a horizontal plate, the vertical beam being slidably fitted onto the inner transfer block; the horizontal plate is connected to the lower end of the vertical beam, and the horizontal plate is used for the adsorption assembly.

[0018] Preferably, the vertical beam is slidably fitted with a locking block, and when the contact block abuts against the workpiece, the lower side of the locking block abuts against the upper side of the inner transfer block; the external trigger includes a closing stop block, a push-lock block, an unlocking block, and an opening stop block. The closing stop block is fixedly mounted on the external frame and abuts against the upper side of the inner transfer block; the push-lock block is fixedly mounted on the external frame and abuts against the locking block, used to move the locking block into position abutting against the inner transfer block; the unlocking block is fixedly mounted on the external frame and abuts against the locking block, used to move the locking block out of position abutting against the inner transfer block; the opening stop block is fixedly mounted on the external frame and abuts against the lower side of the inner transfer block.

[0019] Preferably, the push-lock block and the opening stop block are not provided; one end of the locking block that abuts against the inner transfer block is provided with a clearance guide surface, which abuts against the inner transfer block, and is used to cause the inner transfer block to apply a force to the locking block to move out of the position abutting against the inner transfer block; a self-locking spring is provided between the locking block and the vertical beam, which is used to allow the locking block to move into the position abutting against the inner transfer block after the inner transfer block leaves the clearance guide surface; the horizontal plate is provided with a guide rod, which slides through the inner transfer block, and the guide rod is sleeved with a self-opening spring, one end of which is connected to the horizontal plate and the other end of which is connected to the inner transfer block, which is used to allow the inner transfer block to move upward relative to the mounting frame after the locking block moves out of the position abutting against the inner transfer block.

[0020] Preferably, the locking block is U-shaped, with both ends of the opening extending vertically, the lower end of the locking block forming the avoidance guide surface, and the upper end of the locking block abutting against the unlocking block; the vertical beam is provided with a limiting block, the limiting block being located above the avoidance guide surface and below the upper end of the locking block, and the limiting block abutting against the upper side of the inner transmission block.

[0021] The beneficial effects of the display screen transfer device provided in this application are as follows:

[0022] Compared with the prior art, the display screen transfer device of this application does not require an additional power source. It can automatically protect the adsorbed workpiece by simply touching the external trigger when the device moves along a predetermined trajectory, thus preventing the workpiece from falling. In addition, it can be adapted to environments that are not suitable for arranging complex electrical components. At the same time, the workpiece will not fall in the event of a power outage, so as to fully protect the workpiece. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application;

[0025] Figure 2 This is a state diagram of the contact block when it is released from support according to an embodiment of this application;

[0026] Figure 3 This is a partial cross-sectional view of the YZ plane when the contact block is released from support according to an embodiment of this application;

[0027] Figure 4 This is a partial cross-sectional view of the YZ plane when the contact block is supported in an embodiment of this application.

[0028] The following are the labeling elements in the figure:

[0029] 1. Mounting bracket; 11. Adsorption assembly; 12. Contact block; 13. Inner transfer block; 14. Vertical beam; 141. Limiting block; 15. Horizontal plate; 16. Transfer linkage; 17. Contact linkage; 18. Guide rod; 181. Self-opening spring; 2. Closing stop block; 3. Unlocking block; 4. Locking block; 41. Avoidance guide surface; 42. Self-locking spring; 5. Placement surface. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0033] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] The following is combined Figures 1 to 4 This application describes a display screen transfer device provided in an embodiment.

[0035] like Figure 1 and Figure 2 As shown in the figure, an embodiment of this application discloses a display screen transfer device comprising:

[0036] Mounting bracket 1 has an active setting, the mode of which is determined by the transfer trajectory of the transfer device, and in most cases, mounting bracket 1 will move in both vertical and horizontal directions.

[0037] The adsorption component 11 is mounted on the mounting frame 1. Specifically, it uses a vacuum suction cup device to adsorb the workpiece through negative pressure.

[0038] External triggers are used to be installed on an external rack, where "external" refers to the environment in which the transfer device is located.

[0039] Contact block 12 is movably mounted on mounting bracket 1. Contact block 12 is used to abut against the workpiece and apply an upward supporting force to the workpiece.

[0040] The contact block 12 is made of elastic buffer material. This is because processing errors may cause gaps or interference between the contact block 12 and the workpiece. In this embodiment, the workpiece is a screen, and excessive support may damage the screen. The elastic buffer material has a certain deformation, which can support the screen while protecting it from being squeezed.

[0041] Applying an upward supporting force to the workpiece means that when the adsorption component 11 adsorbs the workpiece, the supporting force only provides auxiliary support and will not cause the workpiece to move upward relative to the adsorption component 11, thus affecting the operation of the adsorption component 11.

[0042] The inner transfer block 13 is movably mounted on the mounting frame 1. The inner transfer block 13 is connected to the contact block 12 via a transmission mechanism. The movement of the inner transfer block 13 causes the contact block 12 to abut against or move away from the workpiece. When the mounting frame 1 moves along a predetermined trajectory, it will touch the outer trigger element, which will cause the inner transfer block 13 to move relative to the mounting frame 1, ultimately driving the contact block 12 to move and complete the protection or release of the workpiece.

[0043] The display screen transfer device provided in this application, compared with the prior art, does not require an additional power source. It can automatically protect the adsorbed workpiece by simply touching an external trigger when the device moves along a predetermined trajectory, thus preventing the workpiece from falling. In addition, it can be adapted to environments that are not suitable for arranging complex electrical components. At the same time, the workpiece will not fall in the event of a power outage, so as to fully protect the workpiece.

[0044] The design incorporates the following considerations: if the contact block 12 only abuts against the side of the workpiece, the frictional force generated cannot provide sufficient vertical support, making it difficult to balance the workpiece's weight. Therefore, the contact block 12 abuts against the bottom surface of the workpiece. Based on this contact block 12 abutting against the bottom surface of the workpiece, the coordination between adsorption and auxiliary support has the following requirements: After the adsorption assembly 11 adsorbs the workpiece, the external trigger triggers the movement of the internal transmission block 13, causing the contact block 12 to move and support the workpiece. Before the adsorption assembly 11 releases the adsorption, the external trigger triggers the movement of the internal transmission block 13, causing the contact block 12 to move and release the workpiece. Considering that the contact block 12 should not interfere with the normal adsorption and release of the workpiece by the adsorption assembly 11, the workpiece needs to be a certain distance away from the placement surface 5 after the adsorption assembly 11 adsorbs the workpiece so that the contact block 12 can contact the bottom surface of the workpiece. Before the adsorption assembly 11 releases the support, the distance between the workpiece and the placement surface 5 provides space for the contact block 12 to release the support.

[0045] In this regard, considering the ease of contact and separation between the contact block 12 and the workpiece, it is preferable to use a method in which the contact block 12 is matched with the corner. At the same time, since the workpiece is a screen, the matching of the contact block 12 with the corner of the screen can also protect the display area of ​​the screen. Specifically, multiple contact blocks 12 are provided, and each contact block 12 corresponds to a corner of the workpiece. Considering that the gravity of the workpiece is always vertically downward and the point of application of the resultant force is its center of gravity, the line connecting multiple contact blocks 12 is used to pass through the center of gravity of the workpiece or the area enclosed by the contact block 12 includes the center of gravity of the workpiece. For example, when the workpiece loses its adsorption force, it can balance the gravity and evenly distribute the load.

[0046] In this embodiment, since the supported workpiece is a screen, and the common screen is quadrilateral, four contact blocks 12 are used to cooperate with the four corners of the workpiece respectively. In other embodiments, if the supported workpiece is a non-quadrilateral polygonal structure, the number of contact blocks 12 can be increased or decreased according to the number of sides of the workpiece to adapt to different shapes of workpieces.

[0047] Since the cooperation between the external trigger and the internal transfer block 13 requires the movement trajectory of the mounting frame 1, and the core function of the transfer device is to transfer the workpiece, the premise is usually to make the transfer trajectory of the transfer device as simple as possible. Based on this, it is necessary to make the cooperation between the external trigger and the internal transfer block 13 simpler. Therefore, the following settings are provided: In some embodiments, the internal transfer block 13 is slidably arranged relative to the mounting frame 1 in the vertical direction; a transfer link 16 and a contact link 17 are provided between the internal transfer block 13 and the contact block 12. One end of the transfer link 16 is hinged to the internal transfer block 13; one end of the contact link 17 is hinged to the mounting frame 1 to form a fixed rotation fulcrum, and the other end is hinged to the end of the transfer link 16 away from the internal transfer block 13. The internal transfer block 13, the transfer link 16, and the contact link 17 form a crank-slider mechanism. The corresponding relationship is as follows: the internal transfer block 13 corresponds to the slider, the transfer link 16 corresponds to the link, and the contact link 17 corresponds to the crank.

[0048] The contact link 17 is connected to the contact block 12. The contact block 12 connected to the contact link 17 is matched with the nearest edge or corner on the workpiece to ensure the optimal force transmission path. Specifically, for example... Figure 1 Similarly, each contact link 17 connects to the nearest contact block 12, and the contact block 12 engages with the nearest workpiece edge.

[0049] When the inner transfer block 13 slides vertically relative to the mounting frame 1, the transfer link 16 pushes the contact link 17 to rotate around the fixed fulcrum, thereby realizing the up-and-down flipping action of the contact block 12. Specifically, when the inner transfer block 13 moves downward relative to the mounting frame 1, the contact block 12 will approach the workpiece and abut against the workpiece. When the inner transfer block 13 moves upward relative to the mounting frame 1, the contact block 12 will move away from the workpiece and detach from the workpiece.

[0050] Based on the aforementioned inner transmission block 13, transmission link 16 and contact link 17 forming a structure similar to a crank-slider mechanism, in order to further simplify the cooperation between the outer trigger and the inner transmission block 13, the following settings are made: Specifically, multiple contact blocks 12 are integrated with the inner transmission block 13 into one, meaning that there is only one inner transmission block 13, and one inner transmission block 13 can drive multiple contact blocks 12 simultaneously.

[0051] Since there is only one inner transfer block 13, in order to simplify the connection between the inner transfer block 13 and the mounting frame 1, the mounting frame 1 is modified as follows: the mounting frame 1 includes a vertical beam 14 and a horizontal plate 15. The vertical beam 14 is for the inner transfer block 13 to slide on. The sliding on means that the inner transfer block 13 has a hole in the center for the vertical beam 14 to pass through, and the inner transfer block 13 can slide along the length of the vertical beam 14. The horizontal plate 15 is connected to the lower end of the vertical beam 14 and is for the adsorption assembly 11 to be installed.

[0052] After the contact block 12 abuts against the workpiece, the transfer device will transfer the workpiece. In order to prevent the contact block 12 from detaching from the workpiece due to normal shaking during the transfer process, two methods can be adopted. One is to use an external trigger to limit the movement of the inner transfer block 13 relative to the mounting frame 1. The other is that the mounting frame 1 has a locking structure. Based on the requirement of a simple transfer trajectory, the second method is preferred. Specifically, the vertical beam 14 is slidably embedded with a locking block 4. The movement direction of the locking block 4 is perpendicular to the movement direction of the inner transfer block 13. At the same time, when the contact block 12 abuts against the workpiece, the lower side of the locking block 4 abuts against the upper side of the inner transfer block 13 to limit the upward movement of the inner transfer block 13 relative to the mounting frame 1, thereby locking the contact block 12. The movement of the locking block 4 is also triggered and driven by the external trigger.

[0053] To enable the external trigger to drive the internal transmission block 13 and the locking block 4, the external trigger includes a closing stop 2, a push-lock block, an unlocking block 3, and an opening stop. The closing stop 2 is fixedly installed on the external frame. When the mounting frame 1 drives the adsorption assembly 11 to descend and adsorb the workpiece, the internal transmission block 13 will touch the closing stop 2 as the mounting frame 1 rises. Under the obstruction of the closing stop 2, the internal transmission block 13 moves downward relative to the vertical beam 14, driving the contact block 12 to complete the supporting action. The push-lock block is fixedly installed on the external frame and is set on the subsequent trajectory after touching the closing stop 2. The push-lock block abuts against the locking block 4, causing the locking block 4 to move into the position abutting against the internal transmission block 13. Therefore, with the cooperation of the closing stop 2 and the push-lock block, the contact block 12 can stably support the workpiece.

[0054] Unlocking block 3 is fixedly installed on the external frame. Unlocking block 3 abuts against the locking block 4, causing the locking block 4 to move out of the position abutting against the inner transfer block 13. Opening block is fixedly installed on the external frame and set on the subsequent trajectory after touching unlocking block 3. Opening block abuts against the lower side of inner transfer block 13. During the descent of mounting frame 1, the locking block 4 is first disengaged from the inner transfer block 13 by unlocking block 3. Then, under the obstruction of opening block, inner transfer block 13 moves upward relative to vertical beam 14 to drive contact block 12 to complete the separation action. Therefore, with the cooperation of unlocking block 3 and opening block, contact block 12 can be separated from the workpiece.

[0055] In summary, the cooperation between the external trigger and the internal transmission block 13 is achieved directly during the transfer process without relying on an additional power source. Therefore, it satisfies the aforementioned requirements for use in environments with simple electrical components and for protecting the workpiece from falling in the event of a power outage.

[0056] like Figure 3 and Figure 4 As shown, in this embodiment, considering the simplicity of the structure, no push-lock block or opening stop is provided, but the aforementioned functions must still be maintained. Therefore, the following settings are provided: First, the end of the locking block 4 that abuts against the inner transfer block 13 is formed with an inclined avoidance guide surface 41. The avoidance guide surface 41 abuts against the inner transfer block 13. When the inner transfer block 13 contacts the avoidance guide surface 41, the inner transfer block 13 applies a force to the locking block 4, causing the locking block 4 to move out of the position abutting against the inner transfer block 13. At the same time, a self-locking spring 42 is provided between the locking block 4 and the vertical beam 14. After the inner transfer block 13 leaves the avoidance guide surface 41, the self-locking spring 42 causes the locking block 4 to move into the position abutting against the inner transfer block 13. Therefore, it is only necessary to move the inner transfer block 13 downward relative to the mounting frame 1 to a predetermined position to achieve stable support of the workpiece by the contact block 12.

[0057] Secondly, the horizontal plate 15 is provided with four guide rods 18. To ensure structural stability, each guide rod 18 is positioned close to the corresponding contact block 12. The guide rod 18 slides through the inner transfer block 13. A self-opening spring 181 is sleeved on the guide rod 18. One end of the self-opening spring 181 is connected to the horizontal plate 15, and the other end is connected to the inner transfer block 13. When the inner transfer block 13 abuts against the locking block 4, the self-opening spring 181 is compressed, providing the power for the inner transfer block 13 to move upward. After the locking block 4 moves out of the position abutting against the inner transfer block 13, the inner transfer block 13 moves upward relative to the mounting bracket 1. Therefore, it is only necessary to separate the locking block 4 from the inner transfer block 13 to achieve the separation of the contact block 12 from the workpiece.

[0058] In summary, with the locking block 4 in place, the contact block 12 can operate in the following ways: First, the external trigger can drive all the movements of the internal transmission block 13 and the locking block 4. In this case, the external trigger includes the closing stop block 2, the push lock block, the unlocking block 3, and the opening stop block. Second, the external trigger only drives part of the movements of the internal transmission block 13 and the locking block 4. In this case, the external trigger only includes the closing stop block 2 and the unlocking block 3, and is also equipped with the avoidance guide surface 41, the self-locking spring 42, and the self-opening spring 181.

[0059] Considering that the locking block 4 needs to cooperate with the inner transfer block 13 and the unlocking block 3, and that the inner transfer block 13 will move upward under the action of the self-opening spring 181 when the contact block 12 is separated from the workpiece, in order to prevent the unlocking block 3 from obstructing the upward movement of the inner transfer block 13, the locking block 4 adopts a U-shaped bending shape. The two ends of the opening of the locking block 4 are vertically extended, that is, one end is above and the other end is below along the length of the vertical beam 14. The lower end of the locking block 4 forms the aforementioned avoidance guide surface 41, and the upper end of the locking block 4 abuts against the unlocking block 3. In summary, this structure realizes the separation of the two functions of locking and unlocking the locking block 4 in spatial position.

[0060] In order to ensure the stability of the inner transfer block 13 on the mounting frame 1 after it is separated from the lower end of the clamping block 4, a limiting block 141 is provided on the vertical beam 14. The limiting block 141 is located between the upper and lower ends of the clamping block 4 and abuts against the upper side of the inner transfer block 13. Therefore, with the help of the limiting block 141 and the self-opening spring 181, the stability of the inner transfer block 13 on the mounting frame 1 before the workpiece is removed is achieved.

[0061] In summary, when using this transfer device, according to... Figures 1 to 4 The structure shown moves the mounting frame 1 to the predetermined position for adsorbing the workpiece. After the mounting frame 1 moves downward and adsorbs the workpiece through the adsorption assembly 11, it moves to the closing stop 2. At this time, the mounting frame 1 moves upward and touches the closing stop 2. The inner transfer block 13 moves downward along the vertical direction of the vertical beam 14. The transfer connecting rod 16 pushes the contact connecting rod 17 to rotate around the fixed fulcrum. At this time, the inner transfer block 13 contacts the avoidance guide surface 41. When the inner transfer block 13 moves to the lower end of the avoidance guide surface 41, the self-locking spring 42 pushes out the locking block 4, completing the contact of the inner transfer block 1. 2. The contact with the workpiece prevents the workpiece from falling. When the transfer device releases the workpiece, the mounting frame 1 moves to the predetermined release position. The mounting frame 1 moves down to the upper end of the locking block 4 and touches the unlocking block 3. The locking block 4 is pushed, and the lower end of the locking block 4 moves away from the inner transfer block 13. At this time, the self-opening spring 181 pushes the inner transfer block 13 to move upward along the vertical direction of the vertical beam 14 to the limit block 141. The inner transfer block 13 drives the contact link 17 to rotate around the fixed fulcrum through the transfer link 16, so that the contact block 12 releases the contact with the workpiece.

[0062] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display screen transfer device, characterized in that, include: Mounting bracket (1), active setup; An adsorption assembly (11) is disposed on the mounting frame (1); External triggers are used to be mounted on external racks; A contact block (12) is movably disposed on the mounting bracket (1), the contact block (12) being used to abut against the workpiece and apply an upward supporting force to the workpiece; An inner transfer block (13) is movably mounted on the mounting frame (1). The inner transfer block (13) is connected to the contact block (12) in a transmission manner. The movement of the inner transfer block (13) causes the contact block (12) to abut against or move away from the workpiece. When the mounting bracket (1) moves along a predetermined trajectory, the outer trigger triggers the inner transmission block (13) to move relative to the mounting bracket (1).

2. The display screen transfer device as described in claim 1, characterized in that: The contact block (12) is used to abut the bottom surface of the workpiece; after the adsorption assembly (11) adsorbs the workpiece, the external trigger triggers the movement of the inner transfer block (13); before the adsorption assembly (11) releases the adsorption, the external trigger triggers the movement of the inner transfer block (13).

3. The display screen transfer device as described in claim 2, characterized in that: Multiple contact blocks (12) are provided. One contact block (12) corresponds to one corner of the workpiece. The line connecting multiple contact blocks (12) passes through the center of gravity of the workpiece or the enclosed area includes the center of gravity of the workpiece.

4. The display screen transfer device as described in claim 3, characterized in that: Four contact blocks (12) are provided, and the four contact blocks (12) respectively cooperate with the four corners of the workpiece.

5. A display screen transfer device as described in claim 2, characterized in that: The inner transmission block (13) is slidably disposed in the vertical direction relative to the mounting frame (1); a transmission link (16) and a contact link (17) are provided between the inner transmission block (13) and the contact block (12), one end of the transmission link (16) is hinged to the inner transmission block (13); one end of the contact link (17) is hinged to the mounting frame (1), and the other end is hinged to the end of the transmission link (16) away from the inner transmission block (13), the inner transmission block (13), the transmission link (16) and the contact link (17) form a crank-slider mechanism; the contact link (17) is connected to the contact block (12), and the contact block (12) connected to the contact link (17) is the closest edge corner on the workpiece.

6. The display screen transfer device as described in claim 5, characterized in that: Multiple contact blocks (12) are integrated with the inner transfer block (13) to form one unit; the mounting frame (1) includes a vertical beam (14) and a horizontal plate (15), the vertical beam (14) is slidably fitted onto the inner transfer block (13); the horizontal plate (15) is connected to the lower end of the vertical beam (14), and the horizontal plate (15) is provided for the adsorption assembly (11).

7. A display screen transfer device as described in claim 6, characterized in that: The vertical beam (14) is slidably fitted with a locking block (4). When the contact block (12) abuts against the workpiece, the lower side of the locking block (4) abuts against the upper side of the inner transmission block (13). The external triggering element includes a closing stop block (2), a push lock block, an unlocking block (3), and an opening stop block. The closing stop block (2) is used to be fixedly installed on the external frame. The closing stop block (2) abuts against the upper side of the inner transmission block (13). The push lock block is used to be fixedly installed on the external frame. On the frame, the push-lock block abuts against the locking block (4) to move the locking block (4) into a position abutting against the inner transfer block (13); the unlocking block (3) is fixedly mounted on the external frame, and the unlocking block (3) abuts against the locking block (4) to move the locking block (4) out of the position abutting against the inner transfer block (13); the opening stop block is fixedly mounted on the external frame, and the opening stop block abuts against the lower side of the inner transfer block (13).

8. A display screen transfer device as described in claim 7, characterized in that: The push-lock block and the opening stop block are not provided; the end of the locking block (4) that abuts against the inner transmission block (13) is provided with a clearance guide surface (41), which abuts against the inner transmission block (13) to cause the inner transmission block (13) to apply a force to the locking block (4) to move it out of the position abutting against the inner transmission block (13); a self-locking spring (42) is provided between the locking block (4) and the vertical beam (14) to allow the locking block (4) to move out of the position abutting against the inner transmission block (13) after the inner transmission block (13) leaves the clearance guide surface (41). Block (4) moves into a position abutting against the inner transfer block (13); the horizontal plate (15) is provided with a guide rod (18), the guide rod (18) slides through the inner transfer block (13), the guide rod (18) is sleeved with a self-opening spring (181), one end of the self-opening spring (181) is connected to the horizontal plate (15), and the other end is connected to the inner transfer block (13), which is used to allow the inner transfer block (13) to move upward relative to the mounting frame (1) after the locking block (4) moves out of the position abutting against the inner transfer block (13).

9. A display screen transfer device as described in claim 8, characterized in that: The card block (4) is U-shaped, with both ends of the opening of the card block (4) extending vertically. The lower end of the card block (4) forms the avoidance guide surface (41), and the upper end of the card block (4) abuts against the unlocking block (3). The vertical beam (14) is provided with a limiting block (141), which is located above the avoidance guide surface (41) and below the upper end of the card block (4). The limiting block (141) abuts against the upper side of the inner transmission block (13).

Images