Auxiliary positioning device for display screen automatic pressing machine

Abstract

The application relates to the technical field of laminators, and discloses an auxiliary positioning device for a display screen automatic laminator, which comprises a base, a support is fixedly connected to the top edge of the base, an electric cylinder is fixedly connected to the middle side of the top of the support, a laminating plate is fixedly connected to the output end of the electric cylinder, a positioning mechanism is arranged in the base, a cleaning mechanism is arranged on one side of the top of the support, a worm wheel is rotationally connected to the top of the base, an inner gear ring is fixedly connected to the inner side of the worm wheel, two L-shaped guide rails are fixedly connected to the inner top walls of the base, and a first gear rack is slidably connected to the bottom of the L-shaped guide rail. Through cooperation of the positioning mechanism, the cleaning mechanism, the support, the electric cylinder and the laminating plate, the device can quickly and conveniently realize the positioning process of a display screen workpiece, can clean the surface of the workpiece during the laminating process, can collect dust again, and can avoid secondary adhesion of dust.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pressing machines, in particular to an auxiliary positioning device for a display screen automatic pressing machine. BACKGROUND

[0002] In the production process of a notebook computer display screen, in order to facilitate the installation of a notebook display screen shell and an inner frame, the notebook computer display screen is usually assembled by pressing, the display screen shell and the inner frame of the notebook computer are pressed and fixed by a pressing machine, and then the display screen assembly is installed between the shell and the inner frame. In order to avoid errors or deviations in the pressing process, a positioning device is usually used for assistance and is used in cooperation with the pressing machine.

[0003] At present, most auxiliary positioning devices for pressing machines need to replace different positioning devices for auxiliary pressing when the pressing machines press different models of notebook display screens due to the differences in the sizes of different models of notebook display screens, the operation is difficult, the replacement is time-consuming, and the efficiency of pressing is affected. Therefore, the application provides an auxiliary positioning device for a display screen automatic pressing machine. SUMMARY

[0004] In view of the defects of the prior art, the application provides an auxiliary positioning device for a display screen automatic pressing machine, which solves the problems that the pressing machine needs to replace different positioning devices for auxiliary pressing when pressing different models of notebook display screens, the operation is difficult, and the replacement is time-consuming.

[0005] To achieve the above purpose, the application is implemented by the following technical scheme: an auxiliary positioning device for a display screen automatic pressing machine, comprising a base, a support is fixedly connected to the top edge of the base, an electric cylinder is fixedly connected to the top middle side of the support, a pressing plate is fixedly connected to the output end of the electric cylinder, a positioning mechanism is arranged in the base, and a cleaning mechanism is arranged on one side of the top of the support.

[0006] The positioning mechanism comprises a base, two L-shaped guide rails and a fixing frame, the top of the base is rotationally connected with a worm wheel, the inner side of the worm wheel is fixedly connected with an inner ring gear, the two L-shaped guide rails are fixedly connected on the two sides of the inner top wall of the base, the bottom of the L-shaped guide rail is slidingly connected with a first rack, the top of one side of the first rack is fixedly connected with a positioning rod, the two sides of the outer periphery of the base are fixedly connected with T-shaped guide rails, the top of the T-shaped guide rail is slidingly connected with a second rack, the inner side of the second rack is provided with a sliding groove, the sliding groove is slidingly connected with a sliding block, the top of the sliding block is fixedly connected with a positioning rod, the other side of the inner side of the second rack is provided with a movable groove, one side of the second rack is fixedly connected with an electric push rod, the output end of the electric push rod is fixedly connected with a connecting block, the top of the base and the inner top wall of the base are rotationally connected with four inner gears, the fixing frame is fixedly connected on one side of the edge of the base, the inner side of the fixing frame is rotationally connected with a worm, one end of the worm is fixedly connected with an outer gear, the outer side of the outer gear is meshingly connected with a transmission rack.

[0007] Preferably, the outer side of the base is fixedly connected with a support frame, and the side away from the base of the support frame is fixedly connected to the inner wall of the base.

[0008] Preferably, the side of the connecting block close to the inner gear is fixedly connected to the middle part of the sliding block, and the outer side of the connecting block is slidingly connected in the inner part of the movable groove.

[0009] Preferably, the outer periphery of the two inner gears is meshed with the two second racks, and the outer periphery of the other two inner gears is meshed with the two first racks.

[0010] Preferably, the top end of the transmission rack penetrates through the base and is fixedly connected to one side of the bottom of the pressing plate, and the worm is meshed with the worm wheel.

[0011] Preferably, the inner part of the pressing plate is provided with four positioning grooves, the top of the base is provided with four guide grooves, the outer side of the positioning rod is slidingly connected in the inner part of the positioning groove, and the other side of the positioning rod is slidingly connected in the inner part of the guide groove.

[0012] Preferably, the cleaning mechanism comprises a cylinder, a collecting box, a dust collecting port and a mounting rack, one side of the top of the support is fixedly connected with the cylinder, a piston is slidably connected in the cylinder, the bottom of the piston is fixedly connected with a connecting rod, one side of the top of the pressing plate is fixedly connected with the bottom end of the connecting rod, a gas outlet is fixedly connected with the top of the cylinder, a one-way valve is mounted outside the gas outlet, a one-way valve is mounted on one side of the outer periphery of the cylinder, the other side of the top of the support is fixedly connected with the collecting box, a filter screen is fixedly connected in the collecting box, the collecting box and one of the one-way valves are communicated through a hose, one side of the top of the base is fixedly connected with the dust collecting port, the other side of the top of the base is fixedly connected with the mounting rack, a nozzle assembly is fixedly connected with the middle of the mounting rack.

[0013] Preferably, the dust collecting port and the filter screen are communicated through a hose, and the nozzle assembly and the cylinder are communicated through a hose.

[0014] Preferably, the connecting rod penetrates through the cylinder and the support.

[0015] Preferably, the nozzle assembly and the dust collecting port are symmetrically arranged.

[0016] Working principle: through the display screen device is placed in the notebook computer shell, then the inner frame workpiece is placed on the notebook computer shell workpiece upper part, then the combined workpiece is placed in the middle part of the base, the pressing machine is started to work, at this time the electric cylinder is started to drive the pressing plate to move down, so that the pressing plate moves down to prepare to press the workpiece, at the same time, the transmission rack moves down and drives the outer gear to rotate, so that the worm rotates and drives the worm wheel to rotate at the top of the base, and then the worm wheel rotates to drive the inner ring gear to rotate, so that the inner ring gear drives the four inner gears on the inner side to rotate synchronously, and then the four inner gears drive the two first racks and the two second racks to move towards the center of the base, so that the four positioning rods can slide in the corresponding positioning groove and guide groove, and move towards the center of the top of the base, so that the combined workpiece placed on the base is pushed and adjusted at the center of the base by the four positioning rods, and the positioning operation is completed. When the pressing plate moves down and contacts the surface of the workpiece, the four positioning rods will be attached to the four sides of the workpiece, and the workpiece will be positioned and limited on the base. When processing different signal display screens, the electric push rod is started to drive the connecting block to move, so that the connecting block moves to drive the corresponding sliding block to slide in the sliding groove, so that the position of the sliding block and the positioning rod above it is adjusted, so that the distance between the two symmetrically distributed positioning rods is adjusted to adapt to the length size of the processed display screen model, so that the four positioning rods can tightly adhere to the four sides of the workpiece after the pressing machine is started to press, and the positioning work is completed. Then the pressing plate moves up to complete the pressing work, and at the same time, the four positioning rods will synchronously loosen the pressed display screen, which is convenient for workers to take out. At the same time, when the pressing machine is started to move the pressing plate down to press, the pressing plate moves down to pull the connecting rod down and drive the piston to move down in the cylinder body, so that the air in the cylinder body is compressed and blown out from the nozzle assembly, so that the dust on the surface of the workpiece to be pressed is cleaned. At the same time, as the piston moves down, the one-way valve on the exhaust hole is in a closed state, and a negative pressure is formed in the space above the cylinder body. At this time, the dust blown by the nozzle assembly is sucked into the dust collection port and transported to the collection box inside the hose, and then the dust is blocked by the filter screen and falls into the collection box to complete the collection, avoiding secondary adhesion of dust. When the pressing plate moves up to complete the pressing, the piston moves up to make the air from the nozzle assembly enter the cylinder body, at this time the one-way valve on the side of the cylinder body is closed, and the one-way valve installed on the exhaust hole is opened, so that the air in the upper part of the cylinder body is discharged through the exhaust hole, waiting for the next pressing to clean the dust again.

[0017] The application provides a display screen automatic pressing machine auxiliary positioning device. The application has the following advantages:

[0018] The auxiliary positioning device for the pressing machine can quickly and conveniently realize the positioning process of the display screen workpiece in use, can adjust the positioning range of the device according to the model of the processed display screen, is suitable for more models of display screen pressing positioning use, has wider applicability, can clean the surface of the workpiece during the pressing process, and can collect dust again, avoid secondary adhesion of dust, and improve the pressing quality of the pressing machine. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the present application;

[0020] Figure 2 It is a schematic view of the cleaning mechanism structure of the present application;

[0021] Figure 3 It is a schematic view of the internal structure of the cylinder body of the present application;

[0022] Figure 4 It is a sectional view of the base of the present application;

[0023] Figure 5 It is a schematic view of the positioning mechanism structure of the present application;

[0024] Figure 6 It is Figure 4 the enlarged view at A in the figure;

[0025] Figure 7 It is Figure 5 the enlarged view at B in the figure;

[0026] Figure 8 It is Figure 5 the enlarged view at C in the figure.

[0027] 1, base; 2, support; 3, electric cylinder; 4, pressing plate; 5, positioning mechanism; 501, base; 502, support frame; 503, worm gear; 504, inner gear ring; 505, L-shaped guide rail; 506, first rack; 507, T-shaped guide rail; 508, second rack; 509, positioning rod; 510, sliding groove; 511, sliding block; 512, movable groove; 513, connecting block; 514, electric push rod; 515, inner gear; 516, fixed frame; 517, worm; 518, outer gear; 519, transmission rack; 6, cleaning mechanism; 601, cylinder body; 602, piston; 603, connecting rod; 604, exhaust hole; 605, one-way valve; 606, collection box; 607, filter screen; 608, dust collection port; 609, mounting frame; 610, spray head assembly; 7, positioning groove; 8, guide groove. EMBODIMENT

[0028] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those ordinarily skilled in the art without creative work fall within the scope of the present application. Embodiments

[0029] Please refer to the accompanying drawings Figure 1 - the accompanying drawings Figure 8 The embodiment of the present application provides a kind of auxiliary positioning device for display screen automatic pressing machine, including pedestal 1, the top edge of pedestal 1 is fixedly connected with support 2, the top middle side of support 2 is fixedly connected with electric cylinder 3, the output end of electric cylinder 3 is fixedly connected with pressing plate 4, by placing display screen equipment in the shell of notebook, again, inner frame workpiece is placed on the upper portion of notebook shell workpiece, then the workpiece of combination is placed in the middle part of pedestal 1, start pressing machine to work, electric cylinder 3 is driven to make pressing plate 4 move down at this time, so that pressing plate 4 moves down and prepares to press workpiece, positioning mechanism 5 is arranged in the inside of pedestal 1, positioning mechanism 5 can be positioned and clamped workpiece when pressing machine works, avoid workpiece to appear deviation, guarantee workpiece can be pressed in the middle, so that workpiece is uniformly stressed, cleaning mechanism 6 is arranged in the top side of support 2, by cleaning mechanism 6 can blow off and collect the dust attached on workpiece, avoid dust flying to cause secondary attachment;

[0030] The positioning mechanism 5 comprises a base 501, two L-shaped guide rails 505 and a fixing frame 516, the top of the base 501 is rotationally connected with a worm wheel 503, the inner side of the worm wheel 503 is fixedly connected with an inner ring gear 504, the inner ring gear 504 drives the four inner gears 515 on the inner side to rotate synchronously, thereby enabling the four inner gears 515 to drive the two first racks 506 and the two second racks 508 to move towards the center of the base 501, enabling the four positioning rods 509 to slide in the corresponding positioning grooves 7 and guide grooves 8 and move towards the top center of the base 1, thereby pushing and adjusting the combined workpiece placed on the base 1 at the center of the base 1 through the four positioning rods 509, the two L-shaped guide rails 505 are fixedly connected on the two sides of the inner top wall of the base 1, the bottom of the L-shaped guide rail 505 is slidingly connected with the first rack 506, the contact section between the L-shaped guide rail 505 and the first rack 506 is T-shaped, which can prevent the first rack 506 from disengaging from the L-shaped guide rail 505 and ensure the stable meshing between the first rack 506 and the inner gear 515, the top of the first rack 506 is fixedly connected with the positioning rod 509 on one side, the two sides of the outer periphery of the base 501 are fixedly connected with T-shaped guide rails 507, the top of the T-shaped guide rail 507 is slidingly connected with the second rack 508, the contact section between the T-shaped guide rail 507 and the second rack 508 is T-shaped, which can prevent the second rack 508 from disengaging from the top of the T-shaped guide rail 507 and ensure the stable meshing between the second rack 508 and the inner gear 515, a sliding groove 510 is formed in the inner side of the second rack 508, a sliding block 511 is slidingly connected in the sliding groove 510, the section of the sliding groove 510 and the sliding block 511 is T-shaped, which can prevent the sliding block 511 from falling off from the sliding groove 510, the positioning rod 509 is fixedly connected to the top of the sliding block 511, as the pressing plate 4 moves downward and contacts the surface of the workpiece, the four positioning rods 509 will be attached to the four edges of the workpiece to position and limit the workpiece on the base 1, a movable groove 512 is formed in the other side of the inner side of the second rack 508, the second rack 508 is fixedly connected with an electric push rod 514 on one side, the output end of the electric push rod 514 is fixedly connected with a connecting block 513, when processing display screens of different signals, the electric push rod 514 is started to drive the connecting block 513 to move, thereby enabling the connecting block 513 to drive the corresponding sliding block 511 to slide in the sliding groove 510, thereby adjusting the positions of the sliding block 511 and the positioning rod 509 above the sliding block 511, adjusting the distance between the two symmetrically distributed positioning rods 509, and making the distance suitable for the length of the processed display screen model, ensuring that the four positioning rods 509 are tightly attached to the four edges of the workpiece after the pressing machine is started to press,The transmission rack 519 will be lowered and drive the outer gear 518 to rotate, so that the worm 517 rotates and drives the worm gear 503 to rotate on the top of the base 501, and then drives the inner gear ring 504 to rotate through the rotation of the worm gear 503, so that the inner gear ring 504 drives the four inner gears 515 on the inside to rotate synchronously.

[0031] The base 501 is fixedly connected with a support frame 502 on the outside, and the side away from the base 501 is fixedly connected to the inner wall of the base 1. The base 501 is supported and fixed in the base 1 through the support frame 502, so that the positioning mechanism 5 can limit the workpiece at the center of the pressing machine when the automatic pressing machine is started, and the workpiece is positioned and pressed.

[0032] The connecting block 513 is fixedly connected to the middle part of the sliding block 511 on the side close to the inner gear 515, and is slidably connected to the inside of the movable groove 512 on the outside. When the electric push rod 514 is started, it can push the connecting block 513 to move in the movable groove 512, and then drive the sliding block 511 to move in the sliding groove 510, so as to adjust the distance between the two positioning rods 509.

[0033] The outer periphery of two inner gears 515 is engaged with two second racks 508 on the upper side, and the outer periphery of the other two inner gears 515 is engaged with two first racks 506 on the upper side. When the four inner gears 515 rotate synchronously, they can synchronously drive the two second racks 508 and the two first racks 506 to approach the center point of the base 1, so as to position and guide the workpiece. The lower side of the outer periphery of the inner gear 515 is engaged with the inner gear ring 504, and when the inner gear ring 504 rotates, it can synchronously drive the four inner gears 515 to rotate, thereby realizing synchronous positioning and clamping of the four edges of the workpiece.

[0034] The top end of the transmission rack 519 penetrates the base 1 and is fixedly connected to the bottom side of the pressing plate 4, so that the transmission rack 519 can remain stable when being pushed by the pressing plate 4, avoiding the disengagement between the transmission rack 519 and the outer gear 518. The worm 517 and the worm gear 503 are engaged, and through the transmission and speed reduction effect between the worm 517 and the worm gear 503, the four positioning rods 509 are driven to approach the center of the base 1 synchronously, and by virtue of the self-locking property of the worm gear 503 and the worm 517, the loosening after positioning is avoided.

[0035] The pressing plate 4 is provided with four positioning grooves 7 inside, and the base 1 is provided with four guide grooves 8 around the top. The positioning rod 509 is slidably connected to the inside of the positioning groove 7 on one side of the outside, and is slidably connected to the inside of the guide groove 8 on the other side of the outside. Through the cooperation between the four positioning rods 509, the positioning grooves 7 and the guide grooves 8, the positioning and guiding of the pressing plate 4 are realized, and at the same time, the four positioning rods 509 can move to position the pressed display screen workpiece.

[0036] The cleaning mechanism 6 comprises a cylinder body 601, a collection box 606, a dust collection port 608 and a mounting frame 609. The cylinder body 601 is fixedly connected to one side of the top of the support 2. A piston 602 is slidably connected in the cylinder body 601. The bottom of the piston 602 is fixedly connected with a connecting rod 603. The bottom end of the connecting rod 603 is fixedly connected to one side of the top of the pressing plate 4. A vent hole 604 is fixedly connected to the top of the cylinder body 601. A one-way valve 605 is mounted outside the vent hole 604. When the pressing plate 4 moves downward, the connecting rod 603 is pulled to move downward, and the piston 602 is driven to move downward in the cylinder body 601, so that the air in the cylinder body 601 is compressed and blown out from the spray head assembly 610, thereby cleaning the dust on the surface of the workpiece to be pressed. A one-way valve 605 is mounted on one side of the outer periphery of the cylinder body 601. The collection box 606 is fixedly connected to the other side of the top of the support 2. A filter screen 607 is fixedly connected in the collection box 606. The collection box 606 and one of the one-way valves 605 are communicated through a hose. At the same time, as the piston 602 moves downward, the one-way valve 605 on the vent hole 604 is in a closed state. The space above the cylinder body 601 forms a negative pressure. At this time, the dust blown by the spray head assembly 610 is sucked into the collection box 606 through the hose, and then the dust is blocked by the filter screen 607 and falls into the collection box 606 to be collected, thereby avoiding secondary dust adhesion. The dust collection port 608 is fixedly connected to one side of the top of the base 1. The mounting frame 609 is fixedly connected to the other side of the top of the base 1. The mounting frame 609 is fixedly connected with the spray head assembly 610 in the middle. When the pressing plate 4 moves upward to complete the pressing, the piston 602 moves upward at this time, so that the air outside enters the cylinder body 601 from the spray head assembly 610. At this time, the one-way valve 605 on the side of the cylinder body 601 is closed, and the one-way valve 605 mounted on the vent hole 604 is opened, so that the air above the cylinder body 601 is discharged through the vent hole 604. When the next pressing is waited, the dust cleaning operation is performed again.

[0037] The dust collection port 608 and the filter screen 607 are communicated through a hose, and the spray head assembly 610 and the cylinder body 601 are communicated through a hose, so that the sucked dust can enter the collection box 606 through the dust collection port 608 and the hose to be stored and collected. At the same time, the air in the cylinder body 601 is compressed and blown out from the inside of the spray head assembly 610 through the hose.

[0038] The connecting rod 603 penetrates through the cylinder body 601 and the support 2, so that the connecting rod 603 can be kept stable when it is pulled up and down by the pressing plate 4 to move reciprocally.

[0039] The spray head assembly 610 and the dust collection port 608 are symmetrically arranged. The airflow blown out from the inside of the spray head assembly 610 blows the dust on the display screen workpiece to the dust collection port 608, and the dust is sucked into the collection box 606 through the dust collection port 608.

[0040] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An auxiliary positioning device for automatic pressing machine of display screen, comprising a base (1), characterized in that, The base (1) top edge is fixedly connected with a support (2), the support (2) top middle side is fixedly connected with an electric cylinder (3), the electric cylinder (3) output end is fixedly connected with a pressing plate (4), the base (1) inside is provided with a positioning mechanism (5), the support (2) top side is provided with a cleaning mechanism (6). The positioning mechanism (5) includes a base (501), two L-shaped guide rails (505) and a fixed frame (516), the base (501) top is rotatably connected with a worm wheel (503), the worm wheel (503) inner side is fixedly connected with an internal gear ring (504), two L-shaped guide rails (505) are fixedly connected on the inner top wall of the base (1) on both sides, the L-shaped guide rail (505) bottom is slidably connected with a first rack (506), the first rack (506) top side is fixedly connected with a positioning rod (509), the base (501) outer periphery both sides are fixedly connected with a T-shaped guide rail (507), the T-shaped guide rail (507) top is slidably connected with a second rack (508), the second rack (508) inside one side is provided with a sliding groove (510), the sliding groove (510) inside is slidably connected with a sliding block (511), the sliding block (511) top is fixedly connected with a positioning rod (509), the second rack (508) inside the other side is provided with a movable slot (512), the second rack (508) one side is fixedly connected with an electric push rod (514), the electric push rod (514) output end is fixedly connected with a connecting block (513), the base (501) top and the inner top wall of the base (1) are rotatably connected with four internal gear wheels (515), the fixed frame (516) is fixedly connected on the edge of the base (501) side, the fixed frame (516) inner side is rotatably connected with a worm (517), the worm (517) one end is fixedly connected with an external gear (518), the external gear (518) outer side is meshingly connected with a transmission rack (519).

2. The auxiliary positioning device for the automatic pressing machine of display screen according to claim 1, characterized in that, The base (501) outer side is fixedly connected with a support frame (502), the support frame (502) away from the base (501) side is fixedly connected in the base (1) inner wall.

3. The auxiliary positioning device for the automatic pressing machine of display screen according to claim 1, characterized in that, The connecting block (513) one side close to the internal gear wheel (515) is fixedly connected in the middle of the sliding block (511), the connecting block (513) outer side is slidably connected in the movable slot (512) inside.

4. The auxiliary positioning device for the automatic pressing machine of display screen according to claim 1, characterized in that, Two internal gear wheels (515) outer periphery upper sides are respectively meshed between two second racks (508), and other two internal gear wheels (515) outer periphery upper sides are respectively meshed between two first racks (506), the internal gear wheel (515) outer periphery lower side is meshed with the internal gear ring (504).

5. The auxiliary positioning device for the automatic pressing machine of display screen according to claim 1, characterized in that, The transmission rack (519) top end penetrates the base (1) and is fixedly connected on the pressing plate (4) bottom side, the worm (517) and the worm wheel (503) are meshed.

6. The auxiliary positioning device for a display screen automatic pressing machine according to claim 1, characterized in that, The pressing plate (4) is internally provided with four positioning grooves (7), the base (1) is perimetrically provided with four guide grooves (8) on the top, the positioning rod (509) is slidably connected to the inside of the positioning groove (7) on one side of the outside, and the other side of the outside of the positioning rod (509) is slidably connected to the inside of the guide groove (8).

7. The auxiliary positioning device for the automatic pressing machine of display screen according to claim 1, characterized in that, The cleaning mechanism (6) comprises a cylinder (601), a collection box (606), a dust collecting port (608) and a mounting rack (609), the cylinder (601) is fixedly connected to one side of the top of the support (2), the cylinder (601) is slidably connected with a piston (602) in the inside, the piston (602) is fixedly connected with a connecting rod (603) at the bottom, the connecting rod (603) is fixedly connected to one side of the top of the pressing plate (4) at the bottom end, the cylinder (601) is fixedly connected with an exhaust hole (604) at the top, the exhaust hole (604) is installed with a one-way valve (605) on the outside, the one-way valve (605) is installed on one side of the periphery of the cylinder (601), the collection box (606) is fixedly connected to the other side of the top of the support (2), the collection box (606) is fixedly connected with a filter screen (607) in the inside, the collection box (606) and one of the one-way valves (605) are communicated through a hose, the dust collecting port (608) is fixedly connected to one side of the top of the base (1), the mounting rack (609) is fixedly connected to the other side of the top of the base (1), and the mounting rack (609) is fixedly connected with a spray head assembly (610) in the middle.

8. The auxiliary positioning device for a display screen automatic pressing machine according to claim 7, characterized in that, The dust collecting port (608) and the filter screen (607) are communicated through a hose, and the spray head assembly (610) and the cylinder (601) are communicated through a hose.

9. The auxiliary positioning device for a display screen automatic pressing machine according to claim 7, characterized in that, The connecting rod (603) penetrates through the cylinder (601) and the support (2) on the periphery.

10. The auxiliary positioning device for a display screen automatic pressing machine according to claim 7, characterized in that, The spray head assembly (610) and the dust collecting port (608) are symmetrically arranged.

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