CN110605903B

CN110605903B - Ceramic chip screen printing machine

Info

Publication number: CN110605903B
Application number: CN201910991528.2A
Authority: CN
Inventors: 陈涛
Original assignee: Xinbai Microelectronic Beijing Co ltd
Current assignee: Xinbai Microelectronic Beijing Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2021-05-18
Anticipated expiration: 2039-10-18
Also published as: CN110605903A; CN112918080A

Abstract

The invention discloses a ceramic chip screen printing machine, which structurally comprises a platform, a servo lifting rod, a support, a top plate, an ink box, a sliding rail, a scraper, a screen printing frame and a fixed seat, and has the following effects: the silk-screen printing frame passes through the ink injection joint and leads the black ring canal and the play black pipe network that allies oneself with the discharge ink groove and constitute, can realize accurate play china ink, and make the even cover of printing ink concentrate the recess surface at printing ink, make printing ink extrude ceramic chip on the surface in the mesh that the scraper blade was followed the fretwork pattern surface in the removal, and the pattern thickness of printing is unanimous, thereby improve the precision after the ceramic chip etching, the pressure that produces when the fixing base utilizes the silk-screen printing frame to descend, make the positioning disk surface produce with ceramic chip isodiametric suction circle, hold ceramic chip, thereby improve the stability of ceramic chip in the printing.

Description

Ceramic chip screen printing machine

Technical Field

The invention relates to the field of printing machines, in particular to a ceramic chip screen printing machine.

Background

The ceramic chip screen printing machine is a machine for printing ceramic chips, the ceramic chip is made of seamless ceramic alloy, the surface is smooth, because the ceramic chip is smooth, the traditional cylinder ceramic chip printing method can not clearly print patterns on the surface of the ceramic chip, so that the effect of forming concave-convex or hollow-out shapes on the ceramic chip after the ceramic chip is subjected to the etching process is not obvious, therefore, the traditional cylinder ceramic chip printing method is gradually replaced by the ceramic chip screen printing method, the ceramic chip screen printing method utilizes the basic principle that part of meshes of a screen printing plate can permeate ink, and part of meshes of non-image-text can not permeate ink to print the patterns on the surface of the ceramic chip, the patterns printed on the surface of the ceramic chip by the screen printing method can form obvious concave-convex or hollow-out shapes on the ceramic chip after the ceramic chip is subjected to the etching process, therefore, the current-carrying capacity of the ceramic chip is greatly improved, but the ceramic chip screen printing method needs to be highly attached and contacted with the ceramic chip in the printing process, because the ceramic chip has a small size and light weight, when a scraper above the screen plate is moved, the ceramic chip is easily caused to slightly deviate, so that the ceramic chip subjected to the etching process cannot present the printed pattern with high precision, the current-carrying and processing capacities of the ceramic chip are greatly reduced, a novel ceramic chip screen printing machine needs to be developed, the problems that the screen plate needs to be highly attached and contacted with the ceramic chip in the printing process in the existing ceramic chip screen printing method are solved, because the ceramic chip has a small size and light weight, when the scraper above the screen plate is moved, the ceramic chip is easily caused to slightly deviate, so that the ceramic chip subjected to the etching process cannot present the pattern with high precision, thereby greatly reducing the problems of current carrying and processing capacity of the ceramic chip.

Summary of the invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the utility model provides a ceramic chip screen printing machine, its structure includes platform, servo lifter, support, roof, ink box, slide rail, scraper blade, screen printing frame, fixing base constitution, the central point at platform top put and be equipped with the fixing base, the fixing base both sides be equipped with servo lifter and be parallel to each other, servo lifter install on the platform perpendicularly, fixing base top be equipped with the roof, roof bottom and servo lifter head end connect, roof bottom be equipped with the slide rail, slide rail below be equipped with the screen printing frame, screen printing frame both sides be equipped with the support and be the axial symmetry structure, the screen printing frame pass through the support and fix in the roof below, slide rail and screen printing frame between be equipped with the scraper blade, scraper blade and slide rail cooperate, scraper blade and screen printing frame cooperate, the roof top be equipped with ink box, the ink box is connected with the screen printing frame.

As a further optimization of the technical scheme, the screen printing frame is composed of an ink injection nozzle, a screen plate, a frame, an ink guide ring pipe and an ink injection connector, wherein the ink injection connector is arranged on two sides of the frame and is in an axisymmetric structure, the ink guide ring pipe is arranged in the center of the top of the frame and is connected with the ink injection connector, the screen plate is arranged in the center of the inner ring of the ink guide ring pipe, the screen plate is installed on a hollowed notch in the top surface of the frame, the ink injection nozzle is arranged on the outer wall of the inner ring of the ink guide ring pipe, and the ink guide ring pipe is connected with the screen plate through the ink injection nozzle.

According to the technical scheme, the screen plate is composed of a joint discharge ink groove, a plate body, a printing ink concentrated groove and hollow patterns, the joint discharge ink groove is formed in four sides of the plate body, the joint discharge ink groove and the plate body are of an integrated structure, the printing ink concentrated groove is formed in the top surface of the plate body, the printing ink concentrated groove and the plate body are of an integrated structure, the printing ink concentrated groove is connected with the joint discharge ink groove, the printing ink concentrated groove is of a rectangular structure and matched with the bottom of a scraper, and the hollow patterns are arranged in the center of the printing ink concentrated groove.

As a further optimization of the technical scheme, the fixing seat is composed of a positioning disk, a support, a driving rod, a driven air pressure mechanism and an air pipe, the positioning disk is arranged at the center of the top of the support, the bottom of the positioning disk is embedded in a groove in the top of the support, the driven air pressure mechanism is arranged inside the support, the air pipe is arranged at the front end of the driven air pressure mechanism, the driven air pressure mechanism is connected with the positioning disk through the air pipe, the driving rod is arranged at the rear end of the driven air pressure mechanism, the driving rod is arranged on the support in a vertical state, the upper end of the driving rod is connected with the support, and the lower end of the driving rod is connected with the driven air pressure mechanism.

As the further optimization of this technical scheme, the positioning disk constitute by ring tube, disk body, branch pipe, suction nozzle, the central point of ring tube inner circle put and be equipped with the disk body, the disk body on be equipped with the suction nozzle, the suction nozzle install perpendicularly on the recess of disk body top surface, disk body and ring tube between be equipped with the branch pipe, ring tube and disk body pass through branch connection, ring tube and trachea connection.

As the further optimization of the technical scheme, the negative pressure suction nozzle consists of a pressure rod, a spring limiting ring, a closed plug, a spring and a cavity, the cavity is embedded in a groove in the surface of the disc body, the spring limiting ring is arranged in the cavity, the pressure rod is arranged at the center of the spring limiting ring, the closed plug is arranged below the spring limiting ring, the closed plug and the cavity are in sliding fit, the top surface of the closed plug is connected with the bottom end of the pressure rod, the spring is arranged between the closed plug and the spring limiting ring, and the top end of the pressure rod stretches out of the cavity.

As the further optimization of this technical scheme, driven air pressure mechanism constitute by driven lever, spacing support, straight-bar, pipe, barrel, piston, the barrel install perpendicularly inside the support, the barrel front end be equipped with the pipe, barrel and trachea pass through pipe connection, the inside piston that is equipped with of barrel, piston and barrel adopt sliding fit, the central point at piston top put and be equipped with the straight-bar, the straight-bar install perpendicularly on the piston, the barrel rear end be equipped with spacing support, spacing support and barrel adopt interference fit, spacing support top be equipped with the driven lever, driven lever middle section position and spacing support swing joint, driven lever front end and straight-bar top swing joint, the straight-bar rear end be connected with the driving lever bottom.

Advantageous effects

The ceramic chip screen printing machine provided by the invention has the advantages of reasonable design, strong functionality and the following beneficial effects:

according to the screen printing frame, the ink outlet pipe network consisting of the ink injection connector, the ink guide ring pipe and the ink discharge grooves is formed, accurate ink discharge can be achieved, ink is uniformly covered on the surface of the ink concentration groove, the ink is extruded onto the surface of a ceramic chip from meshes on the surface of a hollow pattern by the scraper in the moving process, the thickness of the printed pattern is consistent, the accuracy of the ceramic chip after etching is improved, the surface of the positioning disc is provided with the suction ring with the diameter equal to that of the ceramic chip by utilizing the pressure generated when the screen printing frame descends, the ceramic chip is sucked, and the stability of the ceramic chip in printing is improved;

according to the invention, the ink injection nozzles are arranged on the inner ring of the ink guide ring pipe, the linked ink discharge grooves are arranged on the four sides of the ink concentrated groove, each linked ink discharge groove is connected with one ink injection nozzle, the ink discharge is realized by the ink box through a servo pump, and by combining an ink injection joint, the ink guide ring pipe, the ink injection nozzles and an ink discharge pipe network formed by the linked ink discharge grooves, the accurate ink discharge can be realized, so that the ink can be uniformly distributed on the ink concentrated groove after being output;

according to the invention, the straight rod, the limiting support, the driven rod and the driving rod form a lever structure, because the ink concentration groove of the screen printing frame needs to be in high fit contact with the ceramic chip in the printing process, the screen printing frame needs to be driven to descend through the servo lifting rod during printing, because the top end of the driving rod is connected with the support, the pressure generated when the screen printing frame descends drives the driving rod to descend, because the bottom end of the driving rod is connected with the driven rod, the driven rod upwarps when the driving rod descends, and the straight rod drives the piston to slide upwards along the cylinder, the piston generates pressure in the cylinder, and the air in the positioning disc is pumped out, so that the ceramic chip can be firmly fixed on the surface of the positioning disc;

the suction nozzles are uniformly distributed on the surface of the tray body, the cavity is of a hollow cylindrical structure, the upper end and the lower end of the cavity are of circular hollow structures, the center position inside the cavity is provided with the pressure rod, when a ceramic chip is placed on the surface of the tray body, the pressure rod moves downwards in a straight line under the action of the gravity of the ceramic chip and takes the closing plug out of the cavity, so that the upper opening and the lower opening of the cavity are communicated, the ceramic chip is placed on the surface of the tray body, the tray body can automatically open the suction nozzles with corresponding number according to the size of the ceramic chip, the suction range generated on the surface of the tray body is consistent with the size of the ceramic chip, accurate positioning is further realized.

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 front view of a ceramic chip screen printing machine according to the present invention;

FIG. 2 is a schematic top view of a screen printing frame according to the present invention;

FIG. 3 is a schematic top view of a wire mesh sheet of the present invention;

FIG. 4 is a schematic top sectional view of the fixing base of the present invention;

FIG. 5 is a schematic top view of the puck of the present invention;

FIG. 6 is a schematic side view of the vacuum nozzle of the present invention;

fig. 7 is a schematic top view of the driven air pressure mechanism of the present invention.

In the figure: platform-1, servo lifting rod-2, support-3, top plate-4, ink box-5, slide rail-6, scraper-7, screen printing frame-8, ink injection nozzle-81, screen plate-82, joint discharge ink groove-82 a, plate body-82 b, ink concentration groove-82 c, hollowed pattern-82 d, frame-83, ink guide ring pipe-84, ink injection joint-85, fixing seat-9, positioning disk-91, circular tube-91 a, disk body-91 b, branch tube-91 c, suction nozzle-91 d, pressure lever-91 d1, spring limiting ring-91 d2, closing plug-91 d3, spring-91 d4, cavity-91 d5, support-92, driving lever-93, driving lever-91 d4, and driving lever-91, The device comprises a driven air pressure mechanism-94, a driven rod-94 a, a limit support-94 b, a straight rod-94 c, a guide pipe-94 d, a cylinder-94 e, a piston-94 f and an air pipe-95.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.

Examples

Referring to fig. 1-7, the present invention provides an embodiment of a ceramic chip screen printing machine:

referring to fig. 1, a ceramic chip screen printing machine structurally comprises a platform 1, servo lifting rods 2, a support 3, a top plate 4, an ink box 5, a slide rail 6, a scraper 7, a screen printing frame 8 and a fixing seat 9, wherein the fixing seat 9 is arranged at the center of the top of the platform 1, the servo lifting rods 2 are arranged on two sides of the fixing seat 9 and are parallel to each other, the servo lifting rods 2 are vertically arranged on the platform 1, the top plate 4 is arranged above the fixing seat 9, the bottom of the top plate 4 is connected with the head end of the servo lifting rods 2, the slide rail 6 is arranged at the bottom of the top plate 4, the screen printing frame 8 is arranged below the slide rail 6, the support 3 is arranged on two sides of the screen printing frame 8 and is in an axisymmetric structure, the screen printing frame 8 is fixed below the top plate 4 through the support 3, slide rail 6 and screen printing frame 8 between be equipped with

scraper blade

7, 7 tops of scraper blade cooperate with slide rail 6 through servo slide, scraper blade 7 and screen printing frame 8 cooperate, 4 tops of roof be equipped with

ink tank

5, 5 both sides of ink tank connect through leading black hose and screen printing frame 8, ink tank 5 realize out the china ink through the servo pump, control printing ink output volume that can be accurate.

Referring to fig. 2, the screen printing frame 8 is composed of ink injection nozzles 81, a screen plate 82, a frame 83, an ink guide ring pipe 84 and ink injection connectors 85, the ink injection connectors 85 are arranged on two sides of the frame 83 and are in an axisymmetric structure, the ink injection connectors 85 are connected with the ink tank 5 through ink guide hoses, the ink guide ring pipe 84 is arranged in the center of the top of the frame 83, the ink guide ring pipe 84 is connected with the ink injection connectors 85, the screen plate 82 is arranged in the center of the inner ring of the ink guide ring pipe 84, the screen plate 82 is installed on a hollowed-out notch in the top surface of the frame 83, the four ink injection nozzles 81 are uniformly arranged on the outer wall of the inner ring of the ink guide ring pipe 84 at equal intervals, and the ink guide ring pipe 84 is connected with the screen plate 82 through the ink injection nozzles 81.

Referring to fig. 3, the screen plate 82 is composed of a discharge ink tank 82a, a plate body 82b, an ink collecting groove 82c, and a hollow pattern 82d, the plate body 82b has a rectangular structure, and the four sides of the plate body are provided with the ink discharge grooves 82a, the ink discharge grooves 82a and the plate body 82b are of an integrated structure, and each of the ink discharge grooves 82a is connected to one of the ink injection nozzles 81, the top surface of the plate body 82b is provided with an ink collecting groove 82c, the ink concentration groove 82c and the plate body 82b are integrated, the ink concentration groove 82c is connected with the ink discharge groove 82a, the ink concentration groove 82c is of a rectangular structure and is matched with the bottom of the scraper 7, a hollow pattern 82d is arranged at the center of the ink concentration groove 82c, and fine through holes are uniformly distributed on the surface of the hollow pattern 82 d.

Referring to fig. 4, the fixing seat 9 is composed of a positioning disc 91, a support 92, a driving rod 93, a driven air pressure mechanism 94 and an air pipe 95, the positioning disc 91 is arranged at the center of the top of the support 92, the bottom of the positioning disc 91 is embedded and installed on a groove at the top of the support 92, two driven air pressure mechanisms 94 are arranged inside the support 92, and the axis symmetry structure is formed by the symmetry axis of the positioning disc 91, the air pipe 95 is arranged at the front end of the driven air pressure mechanism 94, the driven air pressure mechanism 94 is connected with the positioning disc 91 through the air pipe 95, the driving rod 93 is arranged at the rear end of the driven air pressure mechanism 94, the driving rod 93 is arranged on the support 92 in a vertical state, the upper end of the driving rod is connected with the support 3, and the lower end of the driving rod is connected with the driven air.

Referring to fig. 5, the positioning plate 91 is composed of an annular tube 91a, a plate body 91b, branch tubes 91c and suction nozzles 91d, the plate body 91b is arranged at the center of the inner ring of the annular tube 91a, the plate body 91b is of a hollow circular structure, the suction nozzles 91d are uniformly distributed on the surface of the plate body 91b, the suction nozzles 91d are vertically installed on a groove on the top surface of the plate body 91b, the top of the suction nozzles 91d and the top surface of the plate body 91b are kept on the same horizontal plane, six branch tubes 91c are uniformly arranged between the plate body 91b and the annular tube 91a at equal intervals, the annular tube 91a is connected with the plate body 91b through the branch tubes 91c, and the annular tube 91a is connected with the air tube 95.

Referring to fig. 6, the negative pressure suction nozzle 91d comprises a pressing rod 91d1, a spring retainer ring 91d2, a closing plug 91d3, a spring 91d4, and a cavity 91d5, wherein the cavity 91d5 is embedded and installed on a groove on the surface of the tray body 91b, and the top opening and the top surface of the disc body 91b are kept on the same horizontal plane, a spring limit ring 91d2 is arranged inside the cavity 91d5, a pressure lever 91d1 is arranged at the center of the spring limit ring 91d2, a closing plug 91d3 is arranged below the spring limit ring 91d2, the closing plug 91d3 and the cavity 91d5 adopt sliding fit, the top surface of the closing plug 91d3 is connected with the bottom end of the pressure lever 91d1, a spring is arranged between the closing plug 91d3 and the spring limiting ring 91d2, the top end of the pressure lever 91d1 extends out of the cavity 91d5, the cavity 91d5 is a hollow cylindrical structure and has a circular hollow structure at the upper end and the lower end.

Referring to fig. 7, the driven air pressure mechanism 94 is composed of a driven rod 94a, a limiting support 94b, a straight rod 94c, a guide tube 94d, a cylinder 94e and a piston 94f, the cylinder 94e is vertically installed inside the support 92, the guide tube 94d is arranged at the front end of the cylinder 94e, the cylinder 94e is connected with an air tube 95 through the guide tube 94d, the piston 94f is arranged inside the cylinder 94e, the piston 94f and the cylinder 94e are in sliding fit, the straight rod 94c is arranged at the center of the top of the piston 94f, the straight rod 94c is vertically installed on the piston 94f, the limiting support 94b is arranged at the rear end of the cylinder 94e, the limiting support 94b and the cylinder 94e are in interference fit, the driven rod 94a is arranged at the top of the limiting support 94b, and the middle position of the driven rod 94a is movably connected with the limiting support 94b, the front end of the driven rod 94a is movably connected with the top end of the straight rod 94c, and the rear end of the straight rod 94c is connected with the bottom end of the driving rod 93.

The specific realization principle is as follows:

the screen printing frame 8 of the invention can realize accurate ink discharging through the ink discharging pipe network consisting of the ink injection joint 85, the ink guide ring pipe 84 and the linked ink discharging grooves 82a, and the ink is uniformly covered on the surface of the ink concentration groove 82c, so that the ink is extruded onto the surface of the ceramic chip from the meshes on the surface of the hollow pattern 82d by the scraper 7 in the moving process, and the printed patterns have consistent thickness, thereby improving the accuracy of the ceramic chip after etching, because the ink injection nozzles 81 are arranged on the inner ring of the ink guide ring pipe 84, the linked ink discharging grooves 82a are arranged on the four sides of the ink concentration groove 82c, each linked ink discharging groove 82a is connected with one ink injection nozzle 81, because the ink box 5 realizes ink discharging through a servo pump, and the ink discharging pipe network consisting of the ink injection joint 85, the ink guide ring pipe 84, the ink injection nozzles 81 and the linked ink discharging grooves 82a can realize accurate ink discharging, the printing ink can be uniformly distributed on the printing ink concentration groove 82c after being output, because the scraper 7 is matched with the printing ink concentration groove 82c, a certain pressure is applied to the printing ink position on the printing ink concentration groove 82c through the scraper 7, meanwhile, the printing ink moves towards the other end of the printing ink concentration groove 82c at a constant speed, the printing ink is extruded onto the surface of the ceramic chip from meshes on the surface of the hollow pattern 82d by the scraper 7 in the moving process, the pattern printing with the consistent thickness of the surface of the ceramic chip is finished, the precision of the etched ceramic chip is improved, the fixed seat 9 utilizes the pressure generated when the screen printing frame 8 descends, a suction ring with the same diameter as the ceramic chip is generated on the surface of the positioning disc 91, the ceramic chip is sucked, the stability of the ceramic chip in the printing process is improved, because the straight rod 94c, the limiting support 94b, the driven rod 94a and the driving rod 93 form a lever structure, and because the printing ink concentration groove 82c Therefore, the screen printing frame 8 is required to be driven to descend by the servo lifting rod 2 during printing, because the top end of the driving rod 93 is connected with the bracket 3, the pressure generated when the screen printing frame 8 descends drives the driving rod 93 to descend, because the bottom end of the driving rod 93 is connected with the driven rod 94a, when the driving rod 93 descends, the driven rod 94a tilts upwards, and drives the piston 94f to slide upwards along the cylinder 94e by the straight rod 94c, the piston 94f generates pressure in the cylinder 94e to evacuate air in the positioning disc 91, so that the ceramic chip can be firmly fixed on the surface of the positioning disc 91, because the suction nozzles 91d are uniformly distributed on the surface of the disc body 91b, the cavity 91d5 is of a hollow cylindrical structure, the upper end and the lower end of the cavity 91d5 are of a circular hollow structure, the pressure lever 91d1 is arranged at the center position in the cavity 91d5, when the ceramic, the pressure lever 91d1 is acted by the gravity of the ceramic chip to move linearly downwards and bring the closing plug 91d3 out of the cavity 91d5, so that the upper opening and the lower opening of the cavity 91d5 are communicated, thereby placing the ceramic chip on the surface of the tray body 91b, the tray body 91b can automatically open the corresponding number of suction nozzles 91d according to the size of the ceramic chip, so that the suction range generated on the surface of the tray body 91b is consistent with the size of the ceramic chip, thereby realizing accurate positioning and improving the stability of the ceramic chip in printing, so as to solve the problem that the silk screen plate needs to be highly attached and contacted with the ceramic chip in the printing process of the traditional ceramic chip silk screen printing method because the ceramic chip has smaller size and lighter weight, when the scraper above the screen plate is moved, the ceramic chip is easy to slightly deviate, so that the ceramic chip subjected to the etching process cannot present printed patterns at high precision, and the problems of current carrying and processing capacity of the ceramic chip are greatly reduced.

While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.

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 a ceramic chip screen printing machine, its structure includes platform (1), servo lifter (2), support (3), roof (4), ink box (5), slide rail (6), scraper blade (7), screen printing frame (8), fixing base (9) and constitutes its characterized in that:

the top of the platform (1) is provided with a fixed seat (9), servo lifting rods (2) are arranged on two sides of the fixed seat (9), a top plate (4) is arranged above the fixed seat (9), a sliding rail (6) is arranged at the bottom of the top plate (4), a screen printing frame (8) is arranged below the sliding rail (6), supports (3) are arranged on two sides of the screen printing frame (8), a scraper (7) is arranged between the sliding rail (6) and the screen printing frame (8), and the top of the top plate (4) is provided with an ink box (5);

the screen printing frame (8) is composed of an ink injection nozzle (81), a screen plate (82), a frame (83), an ink guide ring pipe (84) and an ink injection connector (85), wherein the ink injection connector (85) is arranged on two sides of the frame (83), the ink guide ring pipe (84) is arranged on the top of the frame (83), the screen plate (82) is arranged on the inner ring of the ink guide ring pipe (84), and the ink injection nozzle (81) is arranged on the outer wall of the inner ring of the ink guide ring pipe (84);

the screen plate (82) consists of a joint discharge ink groove (82a), a plate body (82b), an ink concentration groove (82c) and a hollow pattern (82d), wherein the joint discharge ink groove (82a) is arranged on four sides of the plate body (82b), the ink concentration groove (82c) is arranged on the top surface of the plate body (82b), and the hollow pattern (82d) is arranged in the center of the ink concentration groove (82 c);

the fixing seat (9) consists of a positioning disc (91), a support (92), a driving rod (93), a driven air pressure mechanism (94) and an air pipe (95), wherein the positioning disc (91) is arranged at the top of the support (92), the driven air pressure mechanism (94) is arranged inside the support (92), the air pipe (95) is arranged at the front end of the driven air pressure mechanism (94), and the driving rod (93) is arranged at the rear end of the driven air pressure mechanism (94);

the positioning disc (91) consists of an annular tube (91a), a disc body (91b), a branch tube (91c) and a suction nozzle (91d), the disc body (91b) is arranged on the inner ring of the annular tube (91a), the suction nozzle (91d) is arranged on the surface of the disc body (91b), and the branch tube (91c) is arranged between the disc body (91b) and the annular tube (91 a);

the negative pressure suction nozzle (91d) consists of a pressure lever (91d1), a spring limiting ring (91d2), a closing plug (91d3), a spring (91d4) and a cavity (91d5), wherein the spring limiting ring (91d2) is arranged in the cavity (91d5), the pressure lever (91d1) is arranged at the center of the spring limiting ring (91d2), the closing plug (91d3) is arranged below the spring limiting ring (91d2), and the spring is arranged between the closing plug (91d3) and the spring limiting ring (91d 2);

the driven air pressure mechanism (94) is composed of a driven rod (94a), a limiting support seat (94b), a straight rod (94c), a guide pipe (94d), a cylinder body (94e) and a piston (94f), the guide pipe (94d) is arranged at the front end of the cylinder body (94e), the piston (94f) is arranged inside the cylinder body (94e), the straight rod (94c) is arranged at the top of the piston (94f), the limiting support seat (94b) is arranged at the rear end of the cylinder body (94e), and the driven rod (94a) is arranged at the top of the limiting support seat (94 b).