CN217673454U

CN217673454U - Surface mounting device for mobile phone screen

Info

Publication number: CN217673454U
Application number: CN202221338988.9U
Authority: CN
Inventors: 李少峰; 仪忠平; 袁志勇
Original assignee: Zhuhai Guanghaojie Technology Co ltd
Current assignee: Zhuhai Guanghaojie Technology Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-10-28
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a subsides of cell-phone screen puts, including frame and screen material loading module, be equipped with the workstation in the frame, on the workstation was located to screen material loading module, still was equipped with FPC visual positioning module, center material loading module and center transportation module on the workstation, portable installation center draws module and screen and draws the module in the frame, so realizes that screen and center are pasted the dress at same equipment and are accomplished, enables the subsides dress position of screen and center and accurate, and the product percent of pass improves.

Description

Surface mounting device for mobile phone screen

Technical Field

The utility model relates to a cell-phone screen pastes the screen field, concretely relates to subsides dress device of cell-phone screen.

Background

With the continuous progress of science and technology and the increasing updating and upgrading of mobile phone products, the touch screen mobile phone has gradually replaced the traditional key mobile phone and becomes the mainstream mobile phone in the market; the screen needs to be attached and installed in the manufacturing process of the touch screen mobile phone, but the existing mobile phone screen mounting device needs to mount the screen and the middle frame on different devices, semi-finished products which are not completely mounted in the transferring process easily cause displacement of parts, deviation of mounting positions of the screen and the middle frame is caused, and the product percent of pass is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at designing a subsides dress device of cell-phone screen to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a mounting device for a mobile phone screen comprises a rack and a screen loading module, wherein a workbench is arranged on the rack, the screen loading module is arranged on the workbench, an FPC visual positioning module, a middle frame loading module and a middle frame transferring module are also arranged on the workbench, a middle frame extracting module and a screen extracting module are movably arranged on the rack, and the middle frame extracting module is matched with the middle frame loading module and the middle frame transferring module; the screen extraction module is matched with the screen feeding module and the middle frame transferring module, and the tail end of the middle frame transferring module is provided with a pressure maintaining module; the FPC visual positioning module is located the center transport module with between the screen material loading module.

Further, the middle frame feeding module comprises a supporting seat, a middle frame feeding rail and a guide plate; the supporting seat is fixed on the workbench, the middle frame feeding track is installed on the supporting seat, a middle frame feeding belt is arranged on the middle frame feeding track, the guide plate is installed on the middle frame feeding track and located above the middle frame feeding belt, and feeding sensors are arranged at two ends of the middle frame feeding track; the middle frame extracting module can move to the upper part of the middle frame feeding track.

Further, still include the guide bar, the guide bar strides on the center material loading track.

Further, the middle frame transferring module comprises a production line, a transferring sliding seat is arranged on the production line, a clamp mounting plate and a position sensor are arranged on the transferring sliding seat, a clamp is arranged on the clamp mounting plate, and the pressure maintaining module is arranged at the tail end of the production line; the assembly line accessible motor, belt and pulley structure drive and transport the slide and remove.

Further, FPC vision positioning module is including location actuating mechanism, slip table, slider and FPC location camera, the slip table is fixed on the workstation, be equipped with the spout on the slip table, be equipped with on the slider with spout complex draw runner, the draw runner is portable to be located in the spout, be connected with the mounting panel on the slider, FPC location camera is installed on the mounting panel, the mounting panel still with location actuating mechanism's output is connected.

Further, the center draws the module and includes mounting plate and absorption subassembly, mounting plate passes through the layer board movable mounting and is in the frame, it can reciprocate to install to absorb the subassembly mounting plate's middle part, fine setting board is all installed to mounting plate's both sides, the last installation spout that is equipped with of mounting plate, be equipped with the installation sand grip on the fine setting board, the installation sand grip with installation spout transition fit, all be equipped with the location camera on the fine setting board. The suction assembly is a vacuum adsorption device, the screen extraction module and the middle frame extraction module are different in that suction nozzles on the suction assembly are different, and the suction nozzles are respectively designed for matching the middle frame and the screen.

Further, the pressure maintaining module comprises a mounting frame, a pressure maintaining cylinder, a guide bottom plate and a guide pressure fixing plate; the utility model discloses a pressure maintaining air cylinder, including the center transportation module, mounting bracket, pressurize cylinder, direction bottom plate, direction pressure fixed plate, direction bottom plate, screen pressure fixed plate, mounting bracket is installed just be located on the workstation the end of center transportation module, the pressurize cylinder is fixed on the mounting bracket, the direction bottom plate passes through the dead lever to be fixed on the mounting bracket, the direction bottom plate with connect through compression spring between the direction pressure fixed plate, the output of pressurize cylinder is connected with the pressure dispersion board, the pressure dispersion board is located the direction bottom plate with between the direction pressure fixed plate, the up end of direction pressure fixed plate is equipped with the pressure maintaining piece, the bottom of direction pressure fixed plate is equipped with screen pressure maintaining plate, the pressure maintaining piece with the cooperation of pressure dispersion board.

Further, the screen feeding module comprises a feeding sliding table, a feeding sliding seat and a feeding installation bottom plate, the feeding sliding table is installed on the workbench, the feeding sliding seat can be installed on the feeding sliding table in a sliding mode, the feeding installation bottom plate is connected to the feeding sliding seat through a supporting rod, a feeding support plate is fixedly connected to the feeding installation bottom plate, and a positioning adjusting block is arranged on the feeding support plate; both ends of the feeding sliding table are provided with screen position sensors; the screen extraction module can move to the upper part of the feeding sliding table.

Further, still include FFU, FFU installs in the frame, and FFU's working face is relative with the workstation.

Compared with the prior art, the beneficial effects of the utility model are that: when the mobile phone screen mounting device works, the middle frame is fed through the middle frame feeding module, the screen feeding module feeds the screen, the middle frame extracting module extracts the middle frame and places the middle frame on the middle frame transferring module, the middle frame transferring module transfers the middle frame into the working range of the screen extracting module, the screen extracting module extracts the screen, the screen is positioned through the FPC visual positioning module and then transferred to the upper part of the middle frame, the screen is mounted on the middle frame, the middle frame transferring module moves the mounted semi-finished product to the upper part of the pressure maintaining module, the pressure maintaining module maintains the pressure of the semi-finished product, and the mounted finished product is discharged after the pressure maintaining is finished; therefore, the screen and the middle frame are mounted on the same equipment, the mounting positions of the screen and the middle frame can be accurate, and the product percent of pass is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the cooperation between the screen loading module, the FPC visual positioning module and the screen extraction module of the present invention;

fig. 3 is a schematic view of the middle frame loading module and the middle frame extracting module of the present invention;

fig. 4 is a schematic view of the middle frame transfer module of the present invention;

fig. 5 is a schematic view of the pressure maintaining module of the present invention;

the names of the components identified in the figures are as follows:

1. a frame; 2. a screen loading module; 3. a work table; 4. an FPC visual positioning module; 5. a middle frame feeding module; 6. a middle frame transfer module; 7. a screen extraction module; 8. a pressure maintaining module; 9. a middle frame extraction module; 10. a guide plate; 11. a middle frame feeding belt; 12. a guide bar; 13. a supporting seat; 14. a middle frame feeding rail; 15. a suction assembly; 16. a fine adjustment plate; 17. positioning a camera; 18. mounting a bottom plate; 19. a pallet; 20. a pipeline; 21. a transfer slide; 22. a clamp mounting plate; 23. a clamp; 24. an FPC positioning camera; 25. a slider; 26. mounting a plate; 27. a sliding table; 28. a feeding sliding table; 29. a feeding slide seat; 30. a feeding installation bottom plate; 31. a support bar; 32. loading a material carrier plate; 33. positioning an adjusting block; 34. a screen pressure maintaining plate; 35. a pressure retention member; 36. fixing the rod; 37. a compression spring; 38. a guide base plate; 39. a guide pressure fixing plate; 40. a pressure maintaining cylinder; 41. and (7) mounting frames.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it is to be understood that only some, but not all embodiments of the present invention are described. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, a mobile phone screen mounting device comprises a frame 1 and a screen loading module 2, wherein the frame 1 is provided with a workbench 3, the screen loading module 2 is arranged on the workbench 3, the workbench 3 is also provided with an FPC visual positioning module 4, a middle frame loading module 5 and a middle frame transferring module 6, the frame 1 is movably provided with a middle frame extracting module 9 and a screen extracting module 7, and the middle frame extracting module 9 is matched with the middle frame loading module 5 and the middle frame transferring module 6; the screen extraction module 7 is matched with the screen feeding module 2 and the middle frame transferring module 6, and the tail end of the middle frame transferring module 6 is provided with a pressure maintaining module 8; the FPC visual positioning module 4 is positioned between the middle frame transferring module 6 and the screen feeding module 2.

The middle frame feeding module 5 comprises a supporting seat 13, a middle frame feeding rail 14, a guide rod 12 and a guide plate 10; a supporting seat 13 is fixed on the workbench 3, a middle frame feeding rail 14 is installed on the supporting seat 13, a guide rod 12 stretches across the middle frame feeding rail 14, a middle frame feeding belt 11 is arranged on the middle frame feeding rail 14, a guide plate 10 is installed on the middle frame feeding rail 14 and is positioned above the middle frame feeding belt 11, and feeding sensors are arranged at two ends of the middle frame feeding rail 14; the middle frame extraction module 9 can move to the upper part of the middle frame feeding track 14; when the middle frame needs to be loaded, the middle frame is manually placed on the middle frame loading rail 14, the loading sensor at the starting end of the middle frame loading rail 14 senses the middle frame, information is fed back to the controller, the controller makes a corresponding control instruction according to the information to control the belt motor to operate, then the belt is driven to operate, the belt drives the middle frame to move into the working range of the middle frame extraction module 9, the loading sensor senses the middle frame and feeds back the information to the controller, the controller makes a corresponding control instruction according to the information to control the driving mechanism of the middle frame extraction module 9 to start, the middle frame extraction module 9 is driven to move to the upper portion of the middle frame, the middle frame is extracted after positioning, the middle frame is moved to the upper portion of the middle frame transportation module 6 after extraction is completed, and finally the middle frame is placed on the middle frame transportation module 6. The feeding belt is arranged on the two belt pulleys; two belt pulleys are installed respectively on driving shaft and driven shaft, and the driving shaft is connected with belt motor, and belt motor work drives the belt function promptly, and the mode of concrete material loading belt work is not the utility model discloses an in the protection scope, do not describe here any more.

The middle frame transferring module 6 comprises a production line 20, a transferring slide seat 21 is arranged on the production line 20, a clamp mounting plate 22 and a position sensor are arranged on the transferring slide seat 21, a clamp 23 is arranged on the clamp mounting plate 22, and the pressure maintaining module 8 is arranged at the tail end of the production line 20; the assembly line 20 may move the transfer carriage 21 via a motor, belt and pulley arrangement. When the middle frame extraction module 9 needs to transfer the middle frame to the middle frame transfer module 6, start the actuating mechanism who transports slide 21, the drive is transported slide 21 and is moved on assembly line 20, transport slide 21 and drive anchor clamps 23 and remove to the below that the middle frame extracted module 9, when the position inductor sensed the middle frame and is extracted module 9, then feed back information to the controller, the controller makes corresponding control command control according to information and transports the actuating mechanism of slide 21 and close, start the middle frame and extract module 9, fix a position anchor clamps 23, place the middle frame on anchor clamps 23 after the location. The clamp mounting plate 22 can firmly fix the clamp 23 on the transfer slide 21.

The middle frame extraction module 9 comprises a mounting base plate 18 and an absorption assembly 15, the mounting base plate 18 is movably mounted on the frame 1 through a supporting plate 19, the absorption assembly 15 can move up and down and is mounted in the middle of the mounting base plate 18, fine adjustment plates 16 are mounted on two sides of the mounting base plate 18, mounting sliding grooves are formed in the mounting base plate 18, mounting convex strips are arranged on the fine adjustment plates 16 and are in transition fit with the mounting sliding grooves, and positioning cameras 17 are arranged on the fine adjustment plates 16. The suction assembly 15 is a vacuum suction device. Firstly, according to different products, the position of the fine adjustment plate 16 on the installation bottom plate 18 is adjusted, namely, the installation convex strip on the installation sliding groove is moved, the fine adjustment plate 16 is moved to a proper position, and therefore the relative positions of the positioning cameras 17 on the two sides of the suction assembly 15 can be adjusted to adapt to different product specifications. When the middle frame extraction module 9 needs to work, a driving mechanism for driving the supporting plate 19 to move is started, the supporting plate 19 moves on the rack 1, the mounting bottom plate 18 can be driven to move, the mounting bottom plate 18 can be driven to synchronously move the suction component 15 and the positioning camera 17, when the mounting bottom plate 18 moves to the position above the middle frame feeding module 5, the positioning camera 17 positions the middle frame, the suction component 15 is started after positioning, the middle frame is moved downwards to be attached to the middle frame, then the suction component 15 moves upwards to recover the original position, the driving mechanism for driving the supporting plate 19 to move is started again, the mounting bottom plate 18 is driven to move to the position above the middle frame transfer module 6, the positioning camera 17 positions the clamp 23 on the middle frame transfer module 6, and the suction component 15 accurately places the middle frame on the clamp 23 according to the instruction of the controller after positioning.

The screen feeding module 2 comprises a feeding sliding table 28, a feeding sliding seat 29 and a feeding installation bottom plate 30, wherein the feeding sliding table 28 is installed on the workbench 3, the feeding sliding seat 29 can be installed on the feeding sliding table 28 in a sliding mode, the feeding installation bottom plate 30 is connected to the feeding sliding seat 29 through a supporting rod 31, a feeding support plate 32 is fixedly connected to the feeding installation bottom plate 30, and a positioning adjusting block 33 is arranged on the feeding support plate 32; both ends of the feeding sliding table 28 are provided with screen position sensors; the screen extraction module 7 can move above the feeding sliding table 28; the screen extraction module 7 differs from the middle frame extraction module 9 in that the suction nozzles on the suction assembly 15 are different, and the suction nozzles are respectively designed for matching the middle frame and the screen. The FPC visual positioning module 4 comprises a positioning driving mechanism, a sliding table 27, a sliding block 25 and an FPC positioning camera 24, the sliding table 27 is fixed on the workbench 3, a sliding groove is formed in the sliding table 27, a sliding strip matched with the sliding groove is arranged on the sliding block 25, the sliding strip can be movably arranged in the sliding groove, an installation plate 26 is connected to the sliding block 25, the FPC positioning camera 24 is installed on the installation plate 26, and the installation plate 26 is further connected with the output end of the positioning driving mechanism. When the screen needs to be loaded, the screen is manually placed on the loading support plate 32, when a screen position sensor at the beginning of the loading sliding table 28 senses that the screen is placed on the loading support plate 32, a driving mechanism of the loading sliding table 29 is started, the loading sliding table 29 is driven to move on the loading sliding table 28, when the sliding table moves, when a screen position sensor at the tail end of the loading sliding table 28 senses the loading sliding table 29, the driving mechanism of the loading sliding table 29 is closed, a driving mechanism of the screen extraction module 7 is started, the screen extraction module 7 is moved to the position above the loading support plate 32, a positioning camera in the screen extraction module 7 positions the screen, after positioning, the suction module 15 is moved to suck the screen, after suction is completed, the suction module 15 returns to the original position, the screen extraction module 7 is moved to the position above the sliding table 27 of the FPC visual positioning module 4, the positioning driving mechanism drives the sliding block 25 to move, the FPC positioning camera 24 to the position below the suction module 15, FPC positioning is moved to position the FPC on the screen, information is fed back to the controller, the controller controls the suction module 15 according to make a corresponding control command, the corresponding movement of the suction module 15, the extraction module 7 to move the frame 6, and the frame above the screen frame 6 and accurately transfer the screen. The length of the supporting rod 31 can be adjusted as required by the supporting rod 31 to adapt to different products, the loading mounting base plate 30 can fix the loading carrier plate 32 on the loading slide carriage 29, and the positioning adjusting block 33 can fix the screen in the range of the loading carrier plate 32, so that the screen is prevented from deviating from the loading carrier plate 32 in the moving process of the loading carrier plate 32 during screen loading.

The fine adjustment plate 16 in the screen extraction module 7 is adjusted in the same way as the fine adjustment plate 16 on the middle frame extraction module 9, and the moving way is also the same as that of the middle frame extraction module 9.

The pressure maintaining module 8 comprises a mounting frame 41, a pressure maintaining cylinder 40, a guide bottom plate 38 and a guide pressure fixing plate 39; mounting bracket 41 is installed on workstation 3 and is located the end of center transport module 6, pressurize cylinder 40 is fixed on mounting bracket 41, guide plate 38 is fixed on mounting bracket 41 through dead lever 36, be connected through compression spring 37 between guide plate 38 and the guide pressure fixed plate 39, the output of pressurize cylinder 40 is connected with the pressure dispersion board, the pressure dispersion board is located between guide plate 38 and the guide pressure fixed plate 39, the up end of guide pressure fixed plate 39 is equipped with pressure maintaining piece 35, the lower terminal surface of guide pressure fixed plate 39 is equipped with screen pressure maintaining plate 34, pressure maintaining piece 35 and the cooperation of pressure dispersion board. In the working range that the screen drawed the mechanism was transported with the center to the transportation slide 21 on the center transport module 6, the screen drawed the mechanism and draws the screen back and the center laminating, the transportation slide 21 removed after the laminating was accomplished, it removes to drive semi-manufactured goods, when the pressurize module 8 was sensed to the position sensor, the motor on the assembly line 20 was closed, start pressurize cylinder 40, down press the pressure dispersion board, the pressure dispersion board compresses tightly pressurize 35, be connected through compression spring 37 between direction bottom plate 38 and the direction pressure fixed plate 39, so direction pressure fixed plate 39 also pushes down, screen pressurize board 34 compresses tightly semi-manufactured goods, pressurize module 8 recovery normal position after the pressurize was accomplished, carry out the unloading to the finished product.

The FFU is arranged on the rack 1, and the working face of the FFU is opposite to the workbench 3. The FFU can provide a clean dust-free environment for the device during operation.

The working principle is as follows: during operation, the middle frame is fed through the middle frame feeding module 5, the screen feeding module 2 feeds the screen, the middle frame extracting module 9 extracts the middle frame and places the middle frame on the middle frame transferring module 6, the middle frame transferring module 6 transfers the middle frame into the working range of the screen extracting module 7, the screen extracting module 7 extracts the screen, the screen is positioned through the FPC visual positioning module 4 and then transferred to the upper portion of the middle frame, the screen is mounted on the middle frame, the middle frame transferring module 6 moves the mounted semi-finished product to the upper portion of the pressure maintaining module 8, the pressure maintaining module 8 maintains the pressure of the semi-finished product, and the mounted finished product is discharged after the pressure maintaining is finished.

It should be noted that: (1) the controller in all the above embodiments may include a common programmable controller or a PLC or a single chip microcomputer, etc. on the market, a wire and a valve for controlling the opening and closing of the motor or the cylinder, and the control system may make corresponding action instructions for each mechanism according to the feedback signal to perform corresponding operations on the product by the operation of the control device, and the specific control mode of the control system is not included in the protection scope of the present invention and is not described herein;

(2) when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "left", "right", "front", "rear", and the like as used herein are for illustrative purposes only.

(3) The above-mentioned driving mechanism may be a motor or a cylinder, which is selected according to the desired motion.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a subsides of cell-phone screen dress device, includes frame (1) and screen material loading module (2), be equipped with workstation (3) in frame (1), screen material loading module (2) are located on workstation (3), its characterized in that: the workbench (3) is also provided with an FPC visual positioning module (4), a middle frame feeding module (5) and a middle frame transferring module (6), a middle frame extracting module (9) and a screen extracting module (7) are movably mounted on the rack (1), and the middle frame extracting module (9) is matched with the middle frame feeding module (5) and the middle frame transferring module (6); the screen extraction module (7) is matched with the screen feeding module (2) and the middle frame transfer module (6), and a pressure maintaining module (8) is arranged at the tail end of the middle frame transfer module (6); the FPC visual positioning module (4) is located between the middle frame transferring module (6) and the screen feeding module (2).

2. The mounting device for the mobile phone screen according to claim 1, wherein: the middle frame feeding module (5) comprises a supporting seat (13), a middle frame feeding rail (14) and a guide plate (10); the supporting seat (13) is fixed on the workbench (3), the middle frame feeding track (14) is installed on the supporting seat (13), a middle frame feeding belt (11) is arranged on the middle frame feeding track (14), the guide plate (10) is installed on the middle frame feeding track (14) and located above the middle frame feeding belt (11), and the middle frame extracting module (9) can move to the position above the middle frame feeding track (14); and the two ends of the middle frame feeding track (14) are provided with feeding inductors.

3. The mounting device for a mobile phone screen according to claim 2, wherein: the middle frame material loading device further comprises a guide rod (12), and the guide rod (12) spans the middle frame material loading track (14).

4. The mounting device for a mobile phone screen according to claim 1, wherein: the center is transported module (6) and is included the assembly line, be equipped with on the assembly line and transport slide (21), be equipped with anchor clamps mounting panel (22) and position inductor on transporting slide (21), be equipped with anchor clamps (23) on anchor clamps mounting panel (22), pressurize module (8) are located the end of assembly line.

5. The mounting device for the mobile phone screen according to claim 1, wherein: FPC vision orientation module is including location actuating mechanism, slip table (27), slider (25) and FPC location camera (24), slip table (27) are fixed on workstation (3), be equipped with the spout on slip table (27), be equipped with the draw runner on slider (25), the draw runner with the spout cooperation, be connected with mounting panel (26) on slider (25), FPC location camera (24) are installed on mounting panel (26), mounting panel (26) still with location actuating mechanism's output is connected.

6. The mounting device for a mobile phone screen according to claim 1, wherein: the center draws the module and includes mounting plate (18) and absorption subassembly (15), but mounting plate (18) are movably installed through layer board (19) in frame (1), it can reciprocate to install to absorb subassembly (15) the middle part of mounting plate (18), fine setting board (16) are all installed to the both sides of mounting plate (18), be equipped with the installation spout on mounting plate (18), be equipped with the installation sand grip on fine setting board (16), the installation sand grip with installation spout transition fit, all be equipped with location camera (17) on fine setting board (16).

7. The mounting device for the mobile phone screen according to claim 1, wherein: the pressure maintaining module (8) comprises a mounting frame (41), a pressure maintaining cylinder (40), a guide bottom plate (38) and a guide pressure fixing plate (39); mounting bracket (41) are installed just be located on workstation (3) the end of center transportation module (6), pressurize cylinder (40) are fixed on mounting bracket (41), direction bottom plate (38) are fixed through dead lever (36) on mounting bracket (41), direction bottom plate (38) with connect through compression spring (37) between direction pressure fixed plate (39), the output of pressurize cylinder (40) is connected with the pressure dispersion board, the pressure dispersion board is located direction bottom plate (38) with between direction pressure fixed plate (39), the up end of direction pressure fixed plate (39) is equipped with pressure maintaining piece (35), the bottom of direction pressure fixed plate (39) is equipped with screen pressure maintaining piece (34), pressure maintaining piece (35) with the cooperation of pressure dispersion board.

8. The mounting device for a mobile phone screen according to claim 1, wherein: the screen feeding module (2) comprises a feeding sliding table (28), a feeding sliding seat (29) and a feeding installation bottom plate (30), the feeding sliding table (28) is installed on the workbench (3), the feeding sliding seat (29) is installed on the feeding sliding table (28) in a sliding mode, the feeding installation bottom plate (30) is connected to the feeding sliding seat (29) through a supporting rod (31), a feeding support plate (32) is fixedly connected to the feeding installation bottom plate (30), and a positioning adjusting block (33) is arranged on the feeding support plate (32); screen position sensors are arranged at two ends of the feeding sliding table (28); the screen extraction module (7) can move to the position above the feeding sliding table (28).