CN113103742A

CN113103742A - Automatic change accurate net puller

Info

Publication number: CN113103742A
Application number: CN202110268691.3A
Authority: CN
Inventors: 戈伶玉
Original assignee: Individual
Current assignee: Shenzhen Huibao Paper Products Co ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-07-13
Anticipated expiration: 2041-03-12
Also published as: CN113103742B

Abstract

The invention provides an automatic precise net puller, which comprises a fixing mechanism, an air suction mechanism and a fixing frame, wherein the air suction mechanism is arranged on the right side of the fixing mechanism, the fixing frame is arranged at the bottom of the fixing mechanism, a fixing base is arranged at the bottom of the fixing frame, a rectangular sliding groove is formed in the upper surface of the fixing base, a placing frame is arranged on the upper surface of the fixing base, and the fixing frame comprises a movable cylinder, a sliding plate, a placing frame and a rectangular sliding groove. The mesh cloth is tightly fixed between the upper pressing plate and the lower pressing plate, so that the mesh cloth is conveniently stretched, and the mesh cloth is automatically fixed, pulled and reset through the arranged air suction mechanism.

Description

Automatic change accurate net puller

Technical Field

The invention relates to an automatic precise net puller, belonging to the field of precise net pullers.

Background

In the prior art, screen printing refers to the process of using a screen as a plate base and making a screen printing plate with pictures and texts by a photosensitive plate making method. The screen printing is composed of five major elements, namely a screen printing plate, a scraper, ink, a printing table and a printing stock. The basic principle that the meshes of the image-text part and the non-image-text part of the screen printing plate are permeable to ink and impermeable to ink is utilized to print. When printing, ink is poured into one end of the screen printing plate, a scraper plate is used for applying a certain pressure to the ink position on the screen printing plate, meanwhile, the scraper plate moves towards the other end of the screen printing plate at a constant speed, and the ink is extruded onto a printing stock from meshes of the image-text part by the scraper plate in the moving process. In the field of screen printing, the quality of screen directly affects the printing quality. The net puller of the existing net pulling cloth generally comprises a machine body, a screw rod displacement mechanism and a net pulling chuck, wherein the net pulling chuck adopts independent chucks, a plurality of independent chucks are arranged around the machine body side by side, the screw rod displacement mechanism can realize displacement by adopting a plurality of transmission modes, but the movement between the screw rod displacement mechanisms on each side is independent, and the movement is longitudinal movement along the length direction, in the net pulling process, the net pulling chuck clamps the periphery of the net pulling cloth firstly, and then the net pulling chuck is driven by the displacement mechanism to extend outwards.

However, the existing net puller needs to manually control a plurality of independent chucks, the net cloth is troublesome to fix, if one chuck is weak in clamping, the net pulling wrinkles are easily caused, the net cloth is scrapped, and the net puller needs to rotate a rocking handle to pull the net in the net pulling process, so that the physical power is very consumed, and the production efficiency is low.

Therefore, there is a need for an automated precision net puller.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic precise net puller, which solves the problems in the background technology by adding a fixing mechanism, an air suction mechanism and a fixing frame.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an automatic change accurate net puller, includes fixed establishment, suction mechanism and mount, the fixed establishment right side is equipped with suction mechanism, the fixed establishment bottom is equipped with the mount, the mount bottom is equipped with unable adjustment base, the unable adjustment base upper surface is equipped with the rectangle spout, the unable adjustment base upper surface is equipped with the rack, fixed establishment includes first breather pipe, pressurization cylinder, well core rod, second piston, first piston, circular through-hole, fixed sleeve, top board, circular spout, goes up rubber slab, projection, holding down plate, gas passage, gas pocket, lower rubber slab and countersink groove, suction mechanism includes mechanism's casing, exhaust hole, exhaust passage, intake duct, motor, jar cavity, eccentric wheel, articulated seat, articulated rod, rubber buffer and one-way valve body, three-way valve one, three-way valve two and control and lets in the pipe, the mount includes activity cylinder, the movable cylinder, Slide, rack and rectangle spout.

Further, among the fixed establishment, the pressurized cylinder right side is equipped with first breather pipe, the inside first piston that is equipped with of pressurized cylinder, the inside circular through-hole that is equipped with of first piston, the inside well core rod that is equipped with of circular through-hole, well core rod bottom is equipped with the second piston, first piston bottom is equipped with the fixed sleeving, the top board upper surface is equipped with circular spout, the top board bottom is equipped with the rubber slab, the terminal surface is equipped with the projection under the upper rubber slab, the fixed sleeving bottom is equipped with the holding down plate, the inside gas passage that is equipped with of holding down plate, the holding down plate upper surface is equipped with the gas pocket, the holding down plate upper surface is equipped with down the rubber slab, the rubber slab is equipped with the countersunk groove down.

Furthermore, the circular through hole penetrates through the first piston, the fixed sleeve and the lower pressure plate, the first piston is movably connected inside the pressurizing cylinder, the air hole penetrates through the lower pressure plate, the lower rubber plate and the countersunk head groove, the central rod is fixed at the center of the top inside the pressurizing cylinder through welding, the pressurizing cylinder and the upper pressure plate are fixed by welding, the fixed sleeve and the lower pressure plate are fixed by welding, the upper rubber plate is connected with the upper pressure plate by glue joint, a plurality of convex columns are transversely distributed on the lower end surface of the upper rubber plate at equal intervals, the lower rubber plate is connected with the lower pressure plate by glue joint, a plurality of countersunk grooves are transversely distributed on the lower end surface of the lower rubber plate at equal intervals, a plurality of convex columns are respectively positioned right above the plurality of countersunk grooves, the size specification of the convex column is matched with that of the countersunk head groove, and the gas channel is communicated with the inside of the circular through hole.

Further, in the air suction mechanism, the front end face of the mechanism shell is provided with an exhaust hole, the back face of the mechanism shell is provided with a motor, the front end of an output shaft of the motor is provided with an eccentric wheel, the inside of the mechanism shell is provided with the eccentric wheel, the front surface of the eccentric wheel is provided with a hinged rod, the left side of the hinged rod is provided with a hinged seat, the left side of the hinged seat is provided with a rubber plug, the inside of the mechanism shell is provided with a cylinder cavity, the inside of the cylinder cavity is provided with an air inlet channel and an air outlet channel, the inside of the air inlet channel is provided with a check valve body, the check valve body comprises a movable rod, a lantern ring, a support rod, a limit block, a first cover plate, a fixed hole, a rubber disc, a through hole and a second cover plate, the middle end of the support rod is provided, the rubber disc upper surface is equipped with the through hole, the rubber disc top is equipped with first apron, first apron upper surface is equipped with the fixed orifices, the inside bolt that is equipped with of fixed orifices, mechanism's casing upper surface is equipped with three-way valve one, mechanism's casing bottom is equipped with three-way valve two, two left sides of three-way valve are equipped with second intercommunication trachea, two front surfaces of three-way valve are equipped with the control and let in the pipe, second intercommunication trachea left end is equipped with movable cylinder.

Further, the output shaft of motor runs through mechanism's casing and passes through welded connection with the eccentric wheel, the hinge bar passes through articulated connection with the eccentric wheel, the hinge bar is connected through articulated with articulated seat, articulated seat is connected through gluing with the rubber buffer, first apron is the same with second apron structure, first apron diameter is less than the rubber disk, first apron, rubber disk and second apron pass through bolt fixed connection, the second apron passes through welded connection with the movable rod, articulated seat, intake duct and the inside check valve body that all is equipped with of exhaust duct, two the check valve body becomes the symmetry and sets up, the intake duct is the infundibulate structure with the inside exhaust duct, three-way valve two and movable cylinder communicate with each other inside, three-way valve two, first breather pipe and pressurized cylinder communicate with each other inside.

Further, the fixing frame is provided with two fixing frames, the two fixing frames are respectively located at the front end and the rear end of the fixing base, rectangular sliding grooves are formed in the left side and the right side of the fixing base, movable air cylinders are arranged inside the rectangular sliding grooves, sliding plates are arranged at the lower ends of the fixing frames, the fixing frames are movable mechanisms, the fixing frames are connected with the movable air cylinders in a welded mode, the rear ends of the movable air cylinders are connected with the rear end face of the inside of the rectangular sliding grooves in a welded mode, the fixing mechanisms are provided with two groups, and the fixing mechanisms are located on.

The invention has the beneficial effects that: the mesh cloth is tightly fixed between the upper pressing plate and the lower pressing plate, so that the mesh cloth is conveniently stretched, and the mesh cloth is automatically fixed, pulled and reset through the arranged air suction mechanism.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the overall structure of an automated precision net puller according to the present invention;

FIG. 2 is a partial cross-sectional view of a securing mechanism of an automated precision net puller of the present invention;

FIG. 3 is a cross-sectional view of the air suction mechanism of an automated precision net puller according to the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3 of an automated precision net puller according to the present invention;

FIG. 5 is a top view of a first cover plate of an automated precision screen puller of the present invention;

FIG. 6 is a top view of a rubber disc of an automated precision net puller of the present invention;

in the figure, 1-fixing mechanism, 11-first connecting vent pipe, 12-pressurizing cylinder, 13-center rod, 131-second piston, 14-first piston, 141-round through hole, 142-fixing sleeve, 15-upper pressing plate, 151-round chute, 152-upper rubber plate, 153-convex column, 16-lower pressing plate, 161-gas channel, 162-gas hole, 17-lower rubber plate, 171-countersunk groove, 2-suction mechanism, 20-mechanism shell, 201-gas vent hole, 202-gas vent hole, 203-gas inlet channel 21-motor, 22-cylinder cavity, 23-eccentric wheel, 231-hinged seat, 24-hinged rod, 25-rubber plug, 26-one-way valve body, 261-movable rod, 262-lantern ring, 263-supporting rod, 264-limiting block, 265-first cover plate, 2651-fixing hole, 266-rubber disc, 2661-through hole, 267-second cover plate, 27-three-way valve I, 28-three-way valve II, 29-control inlet pipe, 3-fixing frame, 31-movable air cylinder, 311-second communication air pipe, 32-sliding plate, 5-fixing base, 51-placing frame and 52-rectangular sliding groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 6, the present invention provides a technical solution: an automatic precision net puller comprises a fixing mechanism 1, an air suction mechanism 2 and a fixing frame 3, wherein the air suction mechanism 2 is arranged on the right side of the fixing mechanism 1, the fixing frame 3 is arranged at the bottom of the fixing mechanism 1, a fixing base 5 is arranged at the bottom of the fixing frame 3, a rectangular sliding groove 52 is arranged on the upper surface of the fixing base 5, a placing frame 51 is arranged on the upper surface of the fixing base 5, the fixing mechanism 1 comprises a first connecting air pipe 11, a pressurizing air cylinder 12, a central rod 13, a second piston 131, a first piston 14, a circular through hole 141, a fixing sleeve 142, an upper pressing plate 15, a circular sliding groove 151, an upper rubber plate 152, a convex column 153, a lower pressing plate 16, an air channel 161, an air hole 162, a lower rubber plate 17 and a countersunk groove 171, the air suction mechanism 2 comprises a mechanism shell 20, an air exhaust hole 201, an exhaust channel 202, an air inlet channel 203, a motor 21, a, The three-way valve I27, the three-way valve II 28 and the control inlet pipe 29, and the fixed frame 3 comprises a movable cylinder 31, a sliding plate 32, a placing frame 51 and a rectangular sliding groove 52.

Referring to fig. 1 to 2, in the fixing mechanism 1, a first connecting and ventilating pipe 11 is disposed on the right side of a pressurizing cylinder 12, a first piston 14 is disposed inside the pressurizing cylinder 12, a circular through hole 141 is disposed inside the first piston 14, a central rod 13 is disposed inside the circular through hole 141, a second piston 131 is disposed at the bottom of the central rod 13, a fixing sleeve 142 is disposed at the bottom of the first piston 14, a circular sliding groove 151 is disposed on the upper surface of an upper pressing plate 15, an upper rubber plate 152 is disposed at the bottom of the upper pressing plate 15, a convex pillar 153 is disposed on the lower end surface of the upper rubber plate 152, a lower pressing plate 16 is disposed at the bottom of the fixing sleeve 142, an air channel 161 is disposed inside the lower pressing plate 16, an air hole 162 is disposed on the upper surface of the lower pressing plate 16, a lower rubber.

The circular through hole 141 penetrates through the first piston 14, the fixed sleeve 142 and the lower press plate 16, the first piston 14 is movably connected inside the pressurizing cylinder 12, the air hole 162 penetrates through the lower press plate 16, the lower rubber plate 17 and the countersunk groove 171, the central rod 13 is fixed at the center of the top inside the pressurizing cylinder 12 by welding, the pressurizing cylinder 12 is fixed with the upper press plate 15 by welding, the fixed sleeve 142 is fixed with the lower press plate 16 by welding, the upper rubber plate 17 is connected with the upper press plate 15 by gluing, a plurality of convex columns 153 are transversely distributed on the lower end face of the upper rubber plate 17 at equal intervals, the lower rubber plate 17 is connected with the lower press plate 16 by gluing, a plurality of countersunk grooves 171 are transversely distributed on the lower end face of the lower rubber plate 17 at equal intervals, the plurality of convex columns 153 are respectively positioned right above the plurality of countersunk grooves 171, the size specification of the convex columns 153 is matched with the size specification of the countersunk grooves 171, the air channel 161 is communicated with the inside of the circular through hole 141, and the mesh cloth is tightly fixed between the upper pressing plate 15 and the lower pressing plate 16, so that the mesh cloth is convenient to stretch.

Referring to fig. 3 to 6, in the air suction mechanism 2, the front end surface of the mechanism housing 20 is provided with an air vent 201, the back surface of the mechanism housing 20 is provided with a motor 21, the front end of the output shaft of the motor 21 is provided with an eccentric wheel 23, the inside of the mechanism housing 20 is provided with the eccentric wheel 23, the front surface of the eccentric wheel 23 is provided with a hinge rod 24, the left side of the hinge rod 24 is provided with a hinge seat 231, the left side of the hinge seat 231 is provided with a rubber plug 25, the inside of the mechanism housing 20 is provided with a cylinder cavity 22, the inside of the cylinder cavity 22 is provided with an air inlet channel 203 and an air exhaust channel 202, the inside of the air inlet channel 203 is provided with a check valve body 26, the check valve body 26 comprises a movable rod 261, a collar 262, a support rod 263, a limit block 264, a first cover plate 265, a fixed hole 2651, a rubber disc 266, a through hole, second apron 267 top is equipped with rubber disc 266, rubber disc 266 upper surface is equipped with through hole 2661, rubber disc 266 top is equipped with first apron 265, first apron 265 upper surface is equipped with fixed orifices 2651, the inside bolt that is equipped with of fixed orifices 2651, mechanism housing 20 upper surface is equipped with three-way valve 27, mechanism housing 20 bottom is equipped with three-way valve two 28, three-way valve two 28 left side is equipped with second intercommunication trachea 311, three-way valve two 28 front surface is equipped with the control and lets in pipe 29, second intercommunication trachea 311 left end is equipped with movable cylinder 31.

An output shaft of the motor 21 penetrates through the mechanism shell 20 to be connected with the eccentric wheel 23 through welding, the hinge rod 24 is connected with the eccentric wheel 23 through hinge joint, the hinge seat 231 is connected with the rubber plug 25 through glue joint, the hinge rod 24 is connected with the hinge seat 231 through hinge joint, the first cover plate 265 and the second cover plate 267 are identical in structure, the diameter of the first cover plate 265 is smaller than that of the rubber disc 266, the first cover plate 265, the rubber disc 266 and the second cover plate 267 are fixedly connected through bolts, the second cover plate 267 is connected with the movable rod 261 through welding, the hinge seat 231, the air inlet channel 203 and the air exhaust channel 202 are internally provided with one-way valve bodies 26, the two one-way valve bodies 26 are symmetrically arranged, the air inlet channel 203 and the air exhaust channel 202 are internally provided with funnel-shaped structures, the air exhaust channel 202, the three-way valve two 28 and the movable cylinder 31 are internally communicated, the, the automatic reset of the invention is realized.

Referring to fig. 1, two fixing frames 3 are provided, the two fixing frames 3 are respectively located at the front end and the rear end of a fixing base 5, rectangular sliding grooves 52 are respectively formed in the left side and the right side of the fixing base 5, a movable cylinder 31 is arranged inside the rectangular sliding grooves 52, a sliding plate 32 is arranged at the lower end of each fixing frame 3, the fixing frames 3 are movable mechanisms, the fixing frames 3 are welded to the movable cylinders 31, the rear ends of the movable cylinders 31 are welded to the rear end faces inside the rectangular sliding grooves 52, the fixing mechanisms 1 are provided with two groups, and the two groups of fixing mechanisms 1 are respectively located on the.

The specific implementation mode is as follows: in the actual use process, the three-way valve 27 is rotated to make the exhaust passage 202 and the second communicating air pipe 311 not be communicated, so that the exhaust passage 202 is communicated with the external space, one end of the mesh cloth is placed between the upper pressure plate 15 and the lower pressure plate 16 of the fixing mechanism 1 at the rear side, the other end of the mesh cloth is placed between the upper pressure plate 15 and the lower pressure plate 16 of the fixing mechanism 1 at the front side, the motor 21 is started, the output shaft of the motor 21 drives the eccentric wheel 23 to rotate, the eccentric wheel 23 is in hinged fit with the hinge rod 24 through the hinge joint of the eccentric wheel 23 and the hinge joint rod 24 and the hinge joint of the hinge joint seat 231, the hinge joint rod 24 drives the hinge joint rod 24 to move, the rubber plug 25 is pulled to move left and right through the hinge joint seat 231, when the rubber plug 25 moves right, the movable rod 261 inside the exhaust passage 202 slides inside the lantern, the air on the right side of the rubber plug 25 is exhausted through the exhaust hole 201, meanwhile, the air inlet channel 203 inhales air, the movable rod 261 inside the check valve body 26 in the air inlet channel 203 slides inside the lantern ring 262, the rubber disc 266 moves upwards, the rubber disc 266 is separated from the inner wall of the air inlet channel 203, at this time, the air inlet channel 203 is conducted, the first connecting and ventilating pipe 11 admits air, so that the first piston 14 inside the pressurizing cylinder 12 moves upwards, the pressurizing cylinder 12 drives the upper pressure plate 15 to move downwards, at this time, the second piston 131 slides inside the circular sliding groove 151 in the fixed sleeve 142, the upper rubber plate 152 of the upper pressure plate 15 is in contact with the lower rubber plate 17 of the lower pressure plate 16, until the mesh cloth is clamped into the countersunk head groove 171 of the lower rubber plate 17 by the convex column 153 of the upper rubber plate 152, at this time, the second piston 131 slides inside the circular sliding groove 151 in the fixed sleeve 142 to the lower, the air channel 161 is sucked through the countersunk groove 171 and is tightly sucked with the convex column 153 through the countersunk groove 171 by the continuous work of the motor 21, the mesh cloth is tightly fixed between the upper pressing plate 15 and the lower pressing plate 16, the mesh cloth is convenient to stretch, the three-way valve 28 is rotated to lead the air exhaust channel 202 to be communicated with the second communicating air pipe 311, when the rubber plug 25 moves leftwards, the right side of the rubber plug 25 sucks air through the air exhaust hole 201, the air exhaust channel 202 exhausts air, the movable rod 261 inside the one-way valve body 26 in the air exhaust channel 202 slides inside the lantern ring 262, the rubber disc 266 moves upwards, the rubber disc 266 is separated from the inner wall of the air inlet channel 203, the air exhaust channel 202 is communicated at the moment, the air enters the movable cylinder 31 through the air exhaust channel 202, and then pushes the movable cylinder 31 to extend, the fixed frame 3 is pushed to move forwards, the sliding plate 32, therefore, the two fixing frames 3 are separated, the mesh is stretched, the mesh and the frame can be installed by placing the frame of the mesh on the placing frame 51, after the installation is completed, the first three-way valve 27 is rotated to enable the exhaust passage 202 to be not communicated with the second communicating air pipe 311 and enable the exhaust passage 202 to be communicated with the external space, the second three-way valve 28 is rotated to enable the air inlet passage 202 to be communicated with the second communicating air pipe 311, at the moment, the upper pressing plate 15 and the lower pressing plate 16 do not have suction force, the separation is convenient, the air inlet passage 202 sucks air through the second communicating air pipe 311 to enable the movable air cylinder 31 to retract, meanwhile, the fixing frames 3 are driven to reset, and the automatic reset of the invention is realized through the first three.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an automatic change accurate net puller, includes fixed establishment (1), suction mechanism (2) and mount (3), its characterized in that: fixed establishment (1) right side is equipped with aspiration mechanism (2), fixed establishment (1) bottom is equipped with mount (3), mount (3) bottom is equipped with unable adjustment base (5), unable adjustment base (5) upper surface is equipped with rectangle spout (52), unable adjustment base (5) upper surface is equipped with rack (51), fixed establishment (1) is including first breather pipe (11), pressurized cylinder (12), well core rod (13), second piston (131), first piston (14), circular through-hole (141), fixed sleeve (142), top board (15), circular spout (151), go up rubber slab (152), projection (153), push down plate (16), gas passage (161), gas pocket (162), lower rubber slab (17) and countersink groove (171), aspiration mechanism (2) is including mechanism's casing (20), Exhaust hole (201), exhaust passage (202), intake duct (203), motor (21), jar cavity (22), eccentric wheel (23), articulated seat (231), articulated rod (24), rubber buffer (25) and check valve body (26), three-way valve (27), two (28) of three-way valve and control let in pipe (29), mount (3) are including activity cylinder (31), slide (32), rack (51) and rectangle spout (52).

2. An automated precision screen puller as recited in claim 1, further comprising: in the fixing mechanism (1), a first communicating pipe (11) is arranged on the right side of the pressurizing cylinder (12), a first piston (14) is arranged inside the pressurizing cylinder (12), a circular through hole (141) is arranged inside the first piston (14), a central rod (13) is arranged inside the circular through hole (141), a second piston (131) is arranged at the bottom of the central rod (13), a fixing sleeve (142) is arranged at the bottom of the first piston (14), a circular sliding groove (151) is arranged on the upper surface of the upper pressing plate (15), an upper rubber plate (152) is arranged at the bottom of the upper pressing plate (15), a convex column (153) is arranged on the lower end surface of the upper rubber plate (152), a lower pressing plate (16) is arranged at the bottom of the fixing sleeve (142), a gas channel (161) is arranged inside the lower pressing plate (16), and an air hole (162) is arranged on the upper surface of the lower pressing, the upper surface of the lower pressing plate (16) is provided with a lower rubber plate (17), and the lower rubber plate (17) is provided with a countersunk groove (171).

3. An automated precision screen puller as recited in claim 1, further comprising: the circular through hole (141) runs through a first piston (14), a fixed sleeve (142) and a lower pressing plate (16), the first piston (14) is movably connected inside a pressurizing cylinder (12), an air hole (162) runs through the lower pressing plate (16), a lower rubber plate (17) and a countersunk groove (171), a central rod (13) is welded and fixed at the center of the inner top of the pressurizing cylinder (12), the pressurizing cylinder (12) and an upper pressing plate (15) are welded and fixed, the fixed sleeve (142) and the lower pressing plate (16) are welded and fixed, the upper rubber plate (17) is connected with the upper pressing plate (15) through gluing, a plurality of convex columns (153) are transversely distributed on the lower end face of the upper rubber plate (17) at equal intervals, the lower rubber plate (17) is connected with the lower pressing plate (16) through gluing, a plurality of countersunk grooves (171) are transversely distributed on the lower end face of the lower rubber plate (17) at equal intervals, the plurality of convex columns (153) are respectively positioned right above the plurality of countersunk grooves (171), the size specification of the convex columns (153) is matched with that of the countersunk grooves (171), and the gas channel (161) is communicated with the inside of the circular through hole (141).

4. An automated precision screen puller as recited in claim 1, further comprising: in air suction mechanism (2), mechanism casing (20) preceding terminal surface is equipped with exhaust hole (201), mechanism casing (20) back is equipped with motor (21), the output shaft front end of motor (21) is equipped with eccentric wheel (23), mechanism casing (20) inside is equipped with eccentric wheel (23), eccentric wheel (23) front surface is equipped with hinge rod (24), hinge rod (24) left side is equipped with articulated seat (231), articulated seat (231) left side is equipped with rubber buffer (25), mechanism casing (20) inside is equipped with cylinder cavity (22), inside intake duct (203) and the exhaust passage (202) of being equipped with of cylinder cavity (22), inside check valve body (26) that is equipped with of intake duct (203), check valve body (26) include movable rod (261), the lantern ring (262), bracing piece (263), stopper (264), first apron (265), first cover plate (265), Fixed orifices (2651), rubber disc (266), through hole (2661) and second apron (267), bracing piece (263) middle-end is equipped with lantern ring (262), lantern ring (262) inside is equipped with movable rod (261), movable rod (261) bottom is equipped with stopper (264), movable rod (261) top is equipped with second apron (267), second apron (267) top is equipped with rubber disc (266), rubber disc (266) upper surface is equipped with through hole (2661), rubber disc (266) top is equipped with first apron (265), first apron (265) upper surface is equipped with fixed orifices (2651), the inside bolt that is equipped with of fixed orifices (2651), mechanism casing (20) upper surface is equipped with three-way valve (27), mechanism casing (20) bottom is equipped with two (28), three-way valve two (28) left side is equipped with second intercommunication trachea (311), the front surface of the second three-way valve (28) is provided with a control inlet pipe (29), and the left end of the second communication air pipe (311) is provided with a movable air cylinder (31).

5. An automated precision screen puller as recited in claim 1, further comprising: the output shaft of motor (21) runs through mechanism's casing (20) and eccentric wheel (23) and passes through welded connection, articulated pole (24) and eccentric wheel (23) are through articulated connection, articulated pole (24) and articulated seat (231) are through articulated connection, articulated seat (231) are connected through gluing with rubber buffer (25), first apron (265) are the same with second apron (267) structure, first apron (265) diameter is less than rubber disc (266), first apron (265), rubber disc (266) and second apron (267) pass through bolt fixed connection, second apron (267) pass through welded connection with movable rod (261), articulated seat (231), intake duct (203) and exhaust duct (202) are inside all to be equipped with check valve body (26), two check valve body (26) are set up symmetrically, intake duct (203) and exhaust duct (202) are inside to be funnel-shaped structure, the exhaust passage (202), the second three-way valve (28) and the movable cylinder (31) are communicated, and the second three-way valve (28), the first connecting and ventilating pipe (11) and the pressurizing cylinder (12) are communicated.

6. An automated precision screen puller as recited in claim 1, further comprising: mount (3) are equipped with two, two both ends around mount (3) are located unable adjustment base (5) respectively, unable adjustment base (5) left and right sides both sides all are equipped with rectangle spout (52), rectangle spout (52) inside is equipped with movable cylinder (31), mount (3) lower extreme is equipped with slide (32), mount (3) are the moving mechanism, mount (3) and movable cylinder (31) welded connection, movable cylinder (31) rear end and the inside rear end face welded connection of rectangle spout (52), fixed establishment (1) is equipped with two sets ofly, two sets of fixed establishment (1) is located two mount (3) upper surfaces respectively.