Screen pressure maintaining device

Abstract

The utility model relates to the field of screen production devices, in particular to a screen pressure maintaining device which comprises a table top, a rotating disc is arranged on the table top and driven by a motor to rotate, pressure maintaining mechanisms are evenly fixed to the rotating disc and comprise fixing bases fixed to the rotating disc, fixing grooves are formed in the fixing bases, and the rotating disc is driven by a motor to rotate. A plurality of positioning rods are further fixed to the fixing base, a pressing plate is further arranged above the fixing base, positioning rings are fixed to the positions, corresponding to the positioning rods, of the pressing plate, the positioning rods penetrate through the positioning rings and are connected with the positioning rings in a sliding mode, a positioning plate is further arranged above the pressing plate, and the positioning rods penetrate through the positioning plate and are connected with the positioning plate in a sliding mode. Positioning blocks are fixed to the tops of the positioning rods, a plurality of springs are further fixed between the positioning plate and the pressing plate, and a limiting block is further fixed to the positioning plate. The device can be used for simultaneously carrying out pressure maintaining operation on a plurality of screens, so that the production efficiency of the screens is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of screen production devices, in particular to a screen pressure maintaining device. BACKGROUND

[0002] With the development of society, more and more electrical equipment will be installed with screens, so that users and electrical equipment can achieve better human-computer interaction. The current screen usually includes a panel and a display screen. The panel can protect the display screen. The bonding method of the panel and the display screen includes full bonding and non-full bonding. Full bonding is to completely paste the panel and the display screen together in a seamless manner by using water glue or optical glue. Non-full bonding means that the panel and the display screen are only bonded by adhesive at the edges. After bonding is completed, pressure needs to be applied to the surface of the screen to make the bonding effect better. Patent application No. CN202322888778.8 discloses a bonded screen pressure maintaining jig, which includes a workbench, a first convex bracket fixedly connected to the top of the workbench, a storage groove formed in the top of the first convex bracket, a second convex bracket fixedly connected to the top of the workbench, a guide rod fixedly connected between the lower surface of the top of the second convex bracket and the top of the workbench, a pressure plate slidably connected to the outer wall of the guide rod, a threaded rod rotatably connected between the lower surface of the top of the second convex bracket and the top of the workbench, a ball nut seat rotatably connected to the outer wall of the threaded rod, and a servo motor fixedly connected to the top of the second convex bracket corresponding to the threaded rod. The panel to be bonded is fixed in the storage groove, and then the screen and the panel are bonded. After the screen is bonded, the servo motor is turned on, and the servo motor automatically stops when reaching the set number of revolutions. At this time, the pressure plate applies pressure to the top of the screen in the storage groove, accelerates the bonding of the screen, and improves the sealing performance of the finished screen. However, such a pressure maintaining device can only maintain the pressure of one screen at a time, which seriously affects the production efficiency of the screen.

[0003] The present application is proposed to overcome the shortcomings of the prior art. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art and provide a screen pressure maintaining device.

[0005] The present application can be implemented by the following technical solutions:

[0006] This invention discloses a screen pressure-holding device, comprising a table, a turntable disposed on the table, the turntable being driven to rotate by a motor, and pressure-holding mechanisms uniformly fixed on the turntable. Each pressure-holding mechanism includes a fixing seat fixed on the turntable, a fixing groove provided on the fixing seat, and multiple positioning rods fixed on the fixing seat. A pressure plate is disposed above the fixing seat, and positioning rings are fixed on the pressure plate at positions corresponding to the positioning rods. The positioning rods pass through the positioning rings and are slidably connected to them. A positioning plate is disposed above the pressure plate, and the positioning rods pass through the positioning plates and are slidably connected to them. The positioning plates are slidably connected. Each positioning rod has a positioning block fixed to its top. Multiple springs are also fixed between the positioning plate and the pressure plate. Limiting blocks are also fixed on the positioning plate. Each limiting block has a roller on its top. A support plate fixed to the table surface is also provided above the turntable. The support plate has a notch. A top plate is fixed above the table surface at the notch position. Multiple limiting cylinders are fixed on the top plate. A limiting plate is provided below the top plate. The piston rod ends of the limiting cylinders are fixed to the limiting plate. A connecting plate that cooperates with the support plate is fixed at the bottom of the limiting plate. Lift the pressure plate at the notch position, place the aligned panel and screen in the fixed slot, release the pressure plate, and drive the turntable to rotate at a certain angle via a motor. The product to be pressed rotates with the turntable to below the limit cylinder. The piston rod on the limit cylinder extends, the connecting plate descends, and after the connecting plate contacts the roller, it pushes the roller to descend. The roller drives the positioning plate to descend, and the positioning plate presses down on the pressure plate through a spring to achieve pressure holding of the product. Then, place the product in the fixed slot at the notch position again, and drive the turntable to rotate again via a motor. After the roller reaches below the support plate, the limit cylinder is activated, the piston rod on the limit cylinder shortens, the connecting plate rises, and the next product to be pressure held reaches below the connecting plate. The cycle continues. After the turntable rotates for a period of time, the screen pressure holding is completed. The product rotates with the turntable to the notch position again, the pressure plate is lifted, and the pressure-held product is removed. This device can perform pressure holding operations on multiple screens simultaneously, greatly improving the screen production efficiency.

[0007] Preferably, each of the pressure plates is fixed with a push plate, and each of the turntables below the push plates is provided with positioning holes penetrating the turntables. A lifting cylinder is also fixed under the table surface, and a support plate is fixed to the end of the piston rod of the lifting cylinder. A connecting hole penetrating the table surface is also provided on the table surface above the support plate. When placing the product to be pressurized, the lifting cylinder is activated, the piston rod of the lifting cylinder extends, the support plate rises, and after passing through the connecting hole and positioning hole, the support plate contacts the push plate. The support plate pushes the push plate up, and the pressure plate rises with the push plate. After the pressure plate is raised to a certain height, the pressurized screen is removed and the screen to be pressurized is placed. After the screen is placed, the lifting cylinder is activated, the piston rod of the lifting cylinder shortens, and the push plate returns to below the table surface.

[0008] Compared with existing technologies, the present invention has the following advantages:

[0009] The device can perform the pressure maintaining operation on multiple screens simultaneously, greatly improving the production efficiency of the screens. BRIEF DESCRIPTION OF DRAWINGS

[0010] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0011] Figure 1 is a structural schematic diagram of the present application;

[0012] Figure 2 is another angle structural schematic diagram of the present application;

[0013] Figure 3 is Figure 1 is an enlarged view of A in the middle;

[0014] In the figure: 1, table top; 2, rotating disc; 3, motor; 4, pressure maintaining mechanism; 5, fixed seat; 6, fixed groove; 7, positioning rod; 8, pressing plate; 9, positioning ring; 10, positioning block; 11, spring; 12, positioning plate; 13, limiting block; 14, roller; 15, supporting plate; 16, top plate; 17, limiting cylinder; 18, limiting plate; 19, connecting plate; 20, positioning hole; 21, push plate; 22, jacking cylinder; 23, supporting plate; 24, connecting hole; 25, notch; DETAILED DESCRIPTION

[0015] The embodiments of the present application will be described in detail below with reference to the accompanying drawings:

[0016] Example 1:

[0017] As Figures 1 to 3The embodiment shown discloses a screen pressure maintaining device, which comprises a table top 1, a rotating disc 2 arranged on the table top 1, the rotating disc 2 being driven to rotate by a motor 3, a pressure maintaining mechanism 4 uniformly fixed on the rotating disc 2, the pressure maintaining mechanism 4 comprising a fixed seat 5 fixed on the rotating disc 2, the fixed seat 5 being provided with a fixed groove 6, a plurality of positioning rods 7 being further fixed on the fixed seat 5, a pressing plate 8 being further arranged above the fixed seat 5, a positioning ring 9 being fixed on the pressing plate 8 at a position corresponding to the positioning rod 7, the positioning rod 7 penetrating through the positioning ring 9 and being in sliding connection with the positioning ring 9, a positioning plate 12 being further arranged above the pressing plate 8, the positioning rod 7 penetrating through the positioning plate 12 and being in sliding connection with the positioning plate 12, a positioning block 10 being fixed on the top of the positioning rod 7, a plurality of springs 11 being further fixed between the positioning plate 12 and the pressing plate 8, a limiting block 13 being further fixed on the positioning plate 12, a roller 14 being arranged on the top of the limiting block 13, a support plate 15 being further arranged above the rotating disc 2 and being fixed with the table top 1, a notch 25 being arranged on the support plate 15, a top plate 16 being fixed above the table top 1 at the position of the notch 25, a plurality of limiting air cylinders 17 being fixed on the top plate 16, a limiting plate 18 being arranged below the top plate 16, the piston rod of the limiting air cylinder 17 being fixed with the limiting plate 18, and a connecting plate 19 being fixed on the bottom of the limiting plate 18 and being used in cooperation with the support plate 15. The pressing plate 8 is lifted at the position of the notch 25, the aligned panel and screen are placed in the fixed groove 6, the pressing plate 8 is loosened, the rotating disc 2 is driven to rotate by the motor 3, the product to be pressed is rotated to below the limiting air cylinder 17, the piston rod of the limiting air cylinder 17 is elongated, the connecting plate 19 is lowered, the connecting plate 19 contacts the roller 14 and pushes the roller 14 to be lowered, the roller 14 drives the positioning plate 12 to be lowered, the product is pressed by the pressing plate 8 being pressed down by the spring 11, the product is placed in the fixed groove 6 at the position of the notch 25 again, the roller 14 is driven to rotate below the support plate 15 by the motor 3, the limiting air cylinder 17 is started, the piston rod of the limiting air cylinder 17 is shortened, the connecting plate 19 is raised, the next product to be pressed is below the connecting plate 19, and the cycle operation is repeated. After the rotating disc 2 rotates for a period of time, the screen pressure maintaining is completed, the product is rotated to the position of the notch 25 again, the pressing plate 8 is lifted, and the product with the pressure maintained is taken out. The device can simultaneously press multiple screens, and greatly improves the production efficiency of the screen.

[0018] Embodiment 2:

[0019] The embodiment discloses a screen pressure maintaining device, on the basis of the structure and principle of embodiment 1, the push plate 21 is fixed on the pressing plate 8, the positioning hole 20 which penetrates the rotating disc 2 is arranged on the rotating disc 2 below the push plate 21, the jacking cylinder 22 is further fixed below the table 1, the piston rod end of the jacking cylinder 22 is fixed with the supporting plate 23, the connecting hole 24 which penetrates the table 1 is further arranged on the table 1 above the supporting plate 23. When the product to be pressure maintained is placed, the jacking cylinder 22 is started, the piston rod of the jacking cylinder 22 is elongated, the supporting plate 23 is lifted, the supporting plate 23 passes through the connecting hole 24 and the positioning hole 20 and then contacts with the push plate 21, the supporting plate 23 pushes the push plate 21 to rise, the pressing plate 8 rises with the push plate 21, after the pressing plate 8 is lifted to a certain height, the screen which is pressure maintained is taken down and the screen to be pressure maintained is placed, after the screen is placed, the jacking cylinder 22 is started, the piston rod of the jacking cylinder 22 is shortened, and the push plate 21 reaches the position below the table 1 again.

[0020] The above is only the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a variety of changes, modifications, replacements and variations can be made to these embodiments, these changes, modifications, replacements and variations should also be considered as the protection scope of the present application.

Claims

1. A screen pressure maintaining device comprising a table top, characterized in that, The table top is provided with a rotating disc, the rotating disc is driven to rotate by a motor, uniform fixing pressure maintaining mechanisms are fixed on the rotating disc, the pressure maintaining mechanism comprises a fixed seat fixed on the rotating disc, a fixed groove is arranged on the fixed seat, a plurality of positioning rods are fixed on the fixed seat, a pressing plate is arranged above the fixed seat, a positioning ring is fixed on the pressing plate corresponding to the position of the positioning rod, the positioning rod penetrates through the positioning ring and is in sliding connection with the positioning ring, a positioning plate is arranged above the pressing plate, the positioning rod penetrates through the positioning plate and is in sliding connection with the positioning plate, a positioning block is fixed on the top of the positioning rod, a plurality of springs are fixed between the positioning plate and the pressing plate, a limiting block is fixed on the positioning plate, a roller is arranged on the top of the limiting block, a support plate is arranged above the rotating disc and is fixed with the table top, a notch is arranged on the support plate, a top plate is fixed above the table top at the position of the notch, a plurality of limiting cylinders are fixed on the top plate, a limiting plate is arranged below the top plate, the piston rod of the limiting cylinder is fixed with the limiting plate, and a connecting plate is fixed on the bottom of the limiting plate and is used in cooperation with the support plate.

2. The screen pressure maintaining device according to claim 1, characterized by Push plates are fixed on the pressing plate, positioning holes penetrating through the rotating disc are arranged on the rotating disc below the push plate, a jacking cylinder is fixed below the table top, a supporting plate is fixed on the end of the piston rod of the jacking cylinder, and a connecting hole penetrating through the table top is arranged on the table top above the supporting plate.

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