CN108274882A

CN108274882A - A kind of full-automatic screen printer

Info

Publication number: CN108274882A
Application number: CN201810105606.XA
Authority: CN
Inventors: 邓君
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-02
Filing date: 2018-02-02
Publication date: 2018-07-13

Abstract

The present invention relates to screen printing technique fields, more particularly to a kind of full-automatic screen printer, it includes rack, distribution control box, setting mutually matched feeding driving device and feeding track in rack, in being provided with printing mechanism in rack on the right side of the feeding track, the printing mechanism includes lifting column group, printing transmission device and the print head being arranged on printing transmission device, in being provided with the carrier transmission device coordinated with feeding track in rack below the print head；The object of the present invention is to provide a kind of accurate positioning, the high-precision full-automatic screen processes press that printing quality is good, stable, easy to maintain and cost-effective.

Description

A kind of full-automatic screen printer

Technical field

The present invention relates to screen printing technique field more particularly to a kind of full-automatic screen printers.

Background technology

Screen process press has printed because of the advantages that convenience that its printed three-dimensional sense is strong, it is wide to be applicable in material range and operates Good popularization is obtained in brush industry, the main member of screen process press includes substrate conveying mechanism, printing mechanism and makes The carrier transmission device that printing mechanism and base material are accurately positioned, wherein carrier transmission device are screen process press precision controllings Principal element, however the drive mechanism of existing screen process press design, some are to adapt to printing machine by being positioned to base material Structure, also some be the position of base material is adapted to by printing mechanism's positioning, however to material strip carry out wire mark continuous operations In practice, existing screen process press haves the shortcomings that the degree of deviation is big, stability is poor.

Invention content

In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of accurate positioning, printing quality is good, operation is steady High-precision full-automatic screen process press fixed, easy to maintain and cost-effective.

In order to achieve the goal above, the technical solution adopted by the present invention is：A kind of full-automatic screen printer, it includes machine Frame, distribution control box, setting mutually matched feeding driving device and feeding track in rack, on the right side of the feeding track in Printing mechanism is provided in rack, the printing mechanism includes that lifting column group, printing transmission device and setting are driven in printing Print head on device, it is described in being provided with the carrier transmission device coordinated with feeding track in rack below the print head It includes the main beam coordinated with lifting column group to print transmission device, and synchronous motor, the synchronization are provided on the main beam Synchronizing wheel is provided on the output shaft of motor, the synchronizing wheel is coordinated by synchronous belt and print head, and the main beam both ends are set It is equipped with screen frame clamp arm, screen frame adjusting device is provided in the screen frame clamp arm, side frame is provided with below the screen frame adjusting device Frame, the front end of the side frame are provided with front baffle, inside in being symmetrically set with screen frame clamping plate, the screen frame on front baffle Towards press cylinder is arranged on clamping plate, the piston-rod lower end of the press cylinder is connected with the binder block coordinated with product, institute Feeding driving device, synchronous motor, press cylinder is stated to be electrically connected with distribution control box.

Further, the front end of the side frame is provided with safety shut-down bar, is provided with and matches on the safety shut-down bar The travel switch that electric control box is electrically connected.

Further, the print head includes the printing main body being slidably matched with main beam, is arranged in the printing main body There is the first lifting cylinder, first lifting cylinder is connect by tracheae with the air gauge being arranged in printing main body and first liter The piston rod upper end of sending down abnormally ascending cylinder passes through connecting plate and is connected with fine-tuning screw, and the fine-tuning screw upper end is arranged with trimming handle, The connecting plate and the connecting rod being interspersed in printing main body coordinate, and the connecting rod lower end is connected with scraper, and the fast both ends of brush are set It is equipped with balance adjustment block, first lifting cylinder is electrically connected with distribution control box.

Further, the carrier transmission device is by transmission lifting gear, front beam, front clamp device, striker plate, transmission Motor, rear cross beam, left clamping device, first rotating shaft, the second shaft, conveyer belt composition, the front beam and rear cross beam are in X direction It is horizontally set in rack, the first rotating shaft is connected to the right end of front beam and rear cross beam, and the second shaft is connected to front beam With the left end of rear cross beam, the belt pulley coordinated with the output shaft of motor, and first rotating shaft and are arranged in the first rotating shaft The both ends of two shafts are arranged with the conveying directive wheel coordinated with conveyer belt, the transmission lifting gear setting in first rotating shaft and Coordinate between second shaft and with conveyer belt, the left side of the first rotating shaft is described in being provided with backgauge jacking cylinder in rack The piston rod upper end of backgauge jacking cylinder is provided with the striker plate coordinated with product right side, and the left clamping device is arranged in machine Coordinate in the right side of the second shaft on frame and with product left side, the front clamp device is arranged in rack in front beam Stage casing and with product leading flank coordinate, the driving motor, backgauge jacking cylinder with distribution control box be electrically connected.

Further, it is provided with rubber ring among the conveying directive wheel.

Further, the transmission lifting gear includes elevating lever, transmission lifter plate, drive bearing, conveyer belt pressure pin, passes Dynamic lifting cylinder adjusts support roller, and the conveyer belt pressure pin is connected in X direction between the two groups of transmission lifter plates in left and right, and two groups Conveying pressure pin is slidably matched with the delivery chute opened up on front beam, rear cross beam respectively, and the lower section of the transmission lifter plate is in rack On be provided with transmission lifting cylinder, the elevating lever both ends are arranged with the drive bearing with transmission lifter plate cooperation, and elevating lever On be arranged with adjusting supporting plate with conveyer belt pressure pin horizontal alignment, the transmission lifting cylinder is electrically connected with distribution control box.

Further, the screen frame adjusting device includes connector sleeve, oscillating bearing, off-network axis and upper junction plate, the company The outside for being set on side frame is connect, and is combined with oscillating bearing in connector sleeve, the oscillating bearing upper end is connected with and screen frame The off-network axis of the interspersed cooperation of clamp arm, off-network axis upper end is provided with upper junction plate, is provided in the screen frame clamp arm and upper company The screen frame lifting device of fishplate bar cooperation.

Further, the screen frame lifting device include screen frame lifting cylinder, supporting rod, limiting plate, stop collar, lead screw, Regulation handle, the screen frame lifting cylinder is arranged in screen frame clamp arm and the piston rod upper end of screen frame lifting cylinder is connected with silk Bar, is arranged with that stop collar, the stop collar outer sheath are interspersed to be combined with limiting plate in the middle part of the lead screw, is set below the limiting plate It is equipped with the supporting rod coordinated with the cylinder body of screen frame lifting cylinder, the upper end of the lead screw passes through upper junction plate and screw-thread fit has tune Handle is saved, the screen frame lifting cylinder is electrically connected with distribution control box.

Further, the front clamp device and left clamping device includes the positioning seat being set in rack, described Guide rail fixed plate is provided on positioning seat, and positioning seat side is provided with positioning cylinder, connects on the piston rod of the positioning cylinder It is connected to the slider connecting plate of " L " shape, the slider connecting plate bottom is slidably matched with guide rail fixed plate by positioning sliding block, and sliding Be provided with and be opened in the positioning card column of the card slot cooperation on front beam above block connecting plate, the positioning cylinder with match electric control Case is electrically connected.

Beneficial effects of the present invention are：

1, it using vertical structure, is vertically lifted by web plate, print head or so action, easy to operate, accurate positioning, printing High-precision full-automatic screen process press high-quality, stable, easy to maintain and cost-effective.

2, printing and web plate lifting use independent driving source, and coordination, velocity-stabilization are adjustable.

3, the design of rubber ring prevents product from occurring running volume, skidding phenomenon in transmission process, it is ensured that transmission process produces Two back gauge of product is consistent.

4, it scrapes mode and is designed as double scrapers, double pneumatic automatic off-networks, can control and scrape, scrape angle adjustable.

5, screen frame adjusting device is installed in left and right screen frame clamp arm, it is simple in structure, it is easy to adjust.

Description of the drawings

Fig. 1 is a kind of dimensional structure diagram of full-automatic screen printer.

Fig. 2 is the structural schematic diagram of printing mechanism.

Fig. 3 is the structural schematic diagram of carrier transmission device.

Fig. 4 is the partial enlarged view of A in Fig. 3.

Fig. 5 is the structural schematic diagram of screen frame adjusting device.

Fig. 6 is the structural schematic diagram of print head.

Fig. 7 be before, the structural schematic diagram of left clamping device.

Fig. 8 is the partial enlarged view of B in Fig. 3.

Fig. 9 is the structural schematic diagram of screen frame lifting device.

Figure 10 is the structural schematic diagram for being driven lifting gear.

Label character as shown in the figure is expressed as：1, rack；2, distribution control box；3, carrier transmission device；4, printing transmission Device；5, lifting column group；6, feeding driving device；7, feeding track；8, screen frame clamping plate；9, front baffle；10, safety shut-down Bar；11, print head；12, press cylinder；13, screen frame clamp arm；14, synchronizing wheel；15, synchronous motor；16, main beam；17, it is driven Lifting gear；18, front beam；19, front clamp device；20, striker plate；21, driving motor；22, product；23, rear cross beam；24、 Left clamping device；25, directive wheel is conveyed；26, the second shaft；27, elevating lever；28, support roller is adjusted；29, conveyer belt；30, side frame Frame；31, connector sleeve；32, oscillating bearing；33, off-network axis；34, screen frame adjusting device；35, upper junction plate；36, main body is printed； 37, the first lifting cylinder；38, scraper；39, balance adjustment block；40, connecting rod；41, trimming handle；42, fine-tuning screw；43, air pressure Table；44, stop collar；45, limiting plate；46, regulation handle；47, lead screw；48, supporting rod；49, screen frame lifting cylinder；50, sliding block Connecting plate；51, positioning cylinder；52, positioning seat；53, guide rail fixed plate；54, positioning sliding block；55, card column is positioned；56, card slot； 57, it is driven lifter plate；58, drive bearing；59, conveyer belt pressure pin；60, it is driven lifting cylinder；61, first rotating shaft.

Specific implementation mode

In order to make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings to the present invention into The description of row detailed description, this part is only exemplary and explanatory, should not there is any limitation to protection scope of the present invention Effect.

As shown in Fig. 1-Figure 10, structure of the invention is：A kind of full-automatic screen printer, it includes rack 1, with automatically controlled Mutually matched feeding driving device 6 and feeding track 7 is arranged in rack 1 in case 2 processed, and 7 right side of the feeding track is in rack Printing mechanism is provided on 1, the printing mechanism includes lifting column group 5, printing transmission device 4 and setting in printing transmission dress Set the print head 11 on 4,11 lower section of the print head is in being provided with the carrier transmission device coordinated with feeding track 7 in rack 1 3, the printing transmission device 4 includes the main beam 16 coordinated with lifting column group 5, is provided on the main beam 16 and synchronizes electricity Machine 15 is provided with synchronizing wheel 14 on the output shaft of the synchronous motor 15, and the synchronizing wheel 14 passes through synchronous belt and print head 11 Cooperation, the main beam 16 is provided at both ends with screen frame clamp arm 13, screen frame adjusting device is provided in the screen frame clamp arm 13, described It is provided with side frame 30 below screen frame adjusting device, the front end of the side frame 30 is provided with front baffle 9, inside in front baffle 9 On be symmetrically set with screen frame clamping plate 8, towards being arranged with press cylinder 12, the press cylinder 12 on the screen frame clamping plate 8 Piston-rod lower end be connected with the binder block coordinated with product 22, the feeding driving device 6, synchronous motor 15, press cylinder 12 are electrically connected with distribution control box 2.

Preferably, the front end of the side frame 30 is provided with safety shut-down bar 10, is provided on the safety shut-down bar 10 The travel switch being electrically connected with distribution control box 2.

Preferably, the print head 11 includes the printing main body 36 being slidably matched with main beam 16, the printing main body 36 On be provided with the first lifting cylinder 37, the air gauge that first lifting cylinder 37 passes through tracheae and is arranged in printing main body 36 The piston rod upper end of 43 connections and the first lifting cylinder 37 passes through connecting plate and is connected with fine-tuning screw 42, the fine-tuning screw 42 Upper end is arranged with trimming handle 41, and the connecting plate and the connecting rod 40 being interspersed in printing main body 36 coordinate, under the connecting rod 40 End is connected with scraper 38, and the brush fast 38 is provided at both ends with balance adjustment block 39, first lifting cylinder 37 with match electric control Case 2 is electrically connected.

Preferably, the carrier transmission device 3 is by transmission lifting gear 17, front beam 18, front clamp device 19, striker plate 20, driving motor 21, rear cross beam 23, left clamping device 24, first rotating shaft 61, the second shaft 26, conveyer belt 29 form, before described Crossbeam 18 and rear cross beam 23 are horizontally set in X direction in rack 1, and the first rotating shaft 61 is connected to front beam 18 and rear cross beam 23 right end, the second shaft 26 are connected to the left end of front beam 18 and rear cross beam 23, are arranged in the first rotating shaft 61 and electricity The belt pulley of the output shaft cooperation of machine 21, and the both ends of first rotating shaft 61 and the second shaft 26 are arranged with and coordinate with conveyer belt 29 Conveying directive wheel 25, the transmission lifting gear 17 be arranged between first rotating shaft 61 and the second shaft 26 and with conveyer belt 29 Cooperation, the left side of the first rotating shaft 61 is in being provided with backgauge jacking cylinder, the piston rod of the backgauge jacking cylinder in rack 1 Upper end is provided with the striker plate 20 coordinated with 22 right side of product, and the left clamping device 24 is arranged in rack 1 in second turn The right side of axis 26 and coordinate with 22 left side of product, the front clamp device 19 is arranged in rack 1 in front beam 18 Section and with 22 leading flank of product coordinate, the driving motor 21, backgauge jacking cylinder with distribution control box 2 be electrically connected.

Preferably, it is provided with rubber ring among the conveying directive wheel 25.

Preferably, the transmission lifting gear 17 includes elevating lever 27, transmission lifter plate 57, drive bearing 58, conveyer belt Pressure pin 59, transmission lifting cylinder 60 adjust support roller 28, and the conveyer belt pressure pin 59 is connected to the two groups of transmission liters in left and right in X direction Between dropping plate 57, and two groups of conveying pressure pins 59 are slidably matched with the delivery chute opened up on front beam 18, rear cross beam 23 respectively, described The lower section of lifter plate 57 is driven in being provided with transmission lifting cylinder 60 in rack 1,27 both ends of the elevating lever are arranged with and are driven The drive bearing 58 that lifter plate 57 coordinates, and the adjusting supporting plate with 59 horizontal alignment of conveyer belt pressure pin is arranged on elevating lever 27 28, the transmission lifting cylinder 60 is electrically connected with distribution control box 2.

Preferably, the screen frame adjusting device includes connector sleeve 31, oscillating bearing 32, off-network axis 33 and upper junction plate 35, The connector sleeve 31 is arranged in the outside of side frame 30, and oscillating bearing 32 is combined in connector sleeve 31, the oscillating bearing 32 Upper end is connected with the off-network axis 33 with the interspersed cooperation of screen frame clamp arm 13, and 33 upper end of off-network axis is provided with upper junction plate 35, institute State the screen frame lifting device 34 for being provided in screen frame clamp arm 13 and coordinating with upper junction plate 35.

Preferably, the screen frame lifting device 34 includes screen frame lifting cylinder 49, supporting rod 48, limiting plate 45, stop collar 44, lead screw 47, regulation handle 46, the screen frame lifting cylinder 49 is arranged in screen frame clamp arm 13 and the work of screen frame lifting cylinder 49 Stopper rod upper end is connected with lead screw 47, and 47 middle part of the lead screw is arranged with the interspersed cooperation of stop collar 44,44 outer sheath of the stop collar There are limiting plate 45,45 lower section of the limiting plate to be provided with the supporting rod 48 coordinated with the cylinder body of screen frame lifting cylinder 49, the silk The upper end of bar 47 passes through upper junction plate 35 and screw-thread fit has regulation handle 46, the screen frame lifting cylinder 49 and distribution control box 2 are electrically connected.

Preferably, the front clamp device 19 and left clamping device 24 includes the positioning seat 52 being set in rack 1, Guide rail fixed plate 53 is provided on the positioning seat 52, and 52 side of positioning seat is provided with positioning cylinder 51, the positioning cylinder The slider connecting plate 50 of " L " shape is connected on 51 piston rod, 50 bottom of the slider connecting plate passes through with guide rail fixed plate 53 Positioning sliding block 54 is slidably matched, and 50 top of slider connecting plate is provided with and is opened in determining for the cooperation of the card slot 56 on front beam 18 Position card column 55, the positioning cylinder 51 are electrically connected with distribution control box 2.

When specifically used, it is first turned on equipment power switch, then product is transported to carrier transmission dress by feeding track 7 It sets on 3, jacks up elevating lever 27 by being driven the action of lifting cylinder 60, conveying is lifted by the adjusting support roller 28 at 27 both ends of elevating lever After product is sent to printing station by band 29, then striker plate 20 rises, and blocks product, and being then driven the action of lifting cylinder 60 will be defeated It send band 29 to decline, product is placed on forward and backward crossbeam, then front clamp device 19, left clamping device 24 clamp product orientation, Print head 11 declines printing, is completed for printing the rising of rear print head 11, and preceding, left clamping device unclamps, and conveyer belt 29 rises product It is transported to next station.

It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or equipment including a series of elements includes not only those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic Element.

Principle and implementation of the present invention are described for specific case used herein, the explanation of above example The method and its core concept for being merely used to help understand the present invention are answered the above is only a preferred embodiment of the present invention When pointing out due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for the common skill of the art For art personnel, without departing from the principle of the present invention, several improvement, retouching or variation can also be made, can also incited somebody to action Above-mentioned technical characteristic is combined in the right way；These improve retouching, variation or combination, or the not improved structure by invention Think and technical solution directly applies to other occasions, is regarded as protection scope of the present invention.

Claims

1. a kind of full-automatic screen printer, it includes rack（1）, distribution control box（2）, be arranged in rack（1）Upper phase interworking The feeding driving device of conjunction（6）With feeding track（7）, it is characterised in that：The feeding track（7）Right side is in rack（1）On set It is equipped with printing mechanism, the printing mechanism includes lifting column group（5）, printing transmission device（4）With setting in printing transmission dress It sets（4）On print head（11）, the print head（11）Lower section is in rack（1）On be provided with and feeding track（7）The load of cooperation Body transmission device（3）, the printing transmission device（4）Including with lifting column group（5）The main beam of cooperation（16）, the main cross Beam（16）On be provided with synchronous motor（15）, the synchronous motor（15）Output shaft on be provided with synchronizing wheel（14）, described same Step wheel（14）Pass through synchronous belt and print head（11）Cooperation, the main beam（16）It is provided at both ends with screen frame clamp arm（13）, described Screen frame clamp arm（13）On be provided with screen frame adjusting device, be provided with side frame below the screen frame adjusting device（30）, the side Frame（30）Front end be provided with front baffle（9）, inside is in front baffle（9）On be symmetrically set with screen frame clamping plate（8）, described Screen frame clamping plate（8）Upper court is arranged with press cylinder（12）, the press cylinder（12）Piston-rod lower end be connected with and product （22）The binder block of cooperation, the feeding driving device（6）, synchronous motor（15）, press cylinder（12）And distribution control box （2）It is electrically connected.

2. a kind of full-automatic screen printer according to claim 1, it is characterised in that：The side frame（30）Front end It is provided with safety shut-down bar（10）, the safety shut-down bar（10）On be provided with and distribution control box（2）The stroke of electric connection Switch.

3. a kind of full-automatic screen printer according to claim 1, it is characterised in that：The print head（11）Including with Main beam（16）The printing main body being slidably matched（36）, the printing main body（36）On be provided with the first lifting cylinder（37）, institute State the first lifting cylinder（37）By tracheae with setting in printing main body（36）On air gauge（43）Connection and the first lifting air Cylinder（37）Piston rod upper end pass through and connecting plate and be connected with fine-tuning screw（42）, the fine-tuning screw（42）Upper end is arranged with micro- Adjust handle（41）, the connecting plate and it is interspersed in printing main body（36）On connecting rod（40）Cooperation, the connecting rod（40）Lower end connects It is connected to scraper（38）, the brush is soon（38）It is provided at both ends with balance adjustment block（39）, first lifting cylinder（37）With distribution Control cabinet（2）It is electrically connected.

4. a kind of full-automatic screen printer according to claim 1, it is characterised in that：The carrier transmission device（3） By transmission lifting gear（17）, front beam（18）, front clamp device（19）, striker plate（20）, driving motor（21）, rear cross beam （23）, left clamping device（24）, first rotating shaft（61）, the second shaft（26）, conveyer belt（29）Composition, the front beam（18）With Rear cross beam（23）It is horizontally set on rack in X direction（1）On, the first rotating shaft（61）It is connected to front beam（18）And rear cross beam （23）Right end, the second shaft（26）It is connected to front beam（18）And rear cross beam（23）Left end, the first rotating shaft（61）On It is arranged with and driving motor（21）Output shaft cooperation belt pulley, and first rotating shaft（61）With the second shaft（26）Both ends it is equal It is arranged with and conveyer belt（29）The conveying directive wheel of cooperation（25）, the transmission lifting gear（17）It is arranged in first rotating shaft（61） With the second shaft（26）Between and and conveyer belt（29）Cooperation, the first rotating shaft（61）Left side in rack（1）On be provided with The piston rod upper end of backgauge jacking cylinder, the backgauge jacking cylinder is provided with and product（22）The striker plate of right side cooperation （20）, the left clamping device（24）It is arranged in rack（1）On in the second shaft（26）Right side and and product（22）Left side Face coordinates, the front clamp device（19）It is arranged in rack（1）On in front beam（18）Stage casing and and product（22）Front side Face coordinates, the driving motor（21）, backgauge jacking cylinder and distribution control box（2）It is electrically connected.

5. a kind of full-automatic screen printer according to claim 4, it is characterised in that：The conveying directive wheel（25）In Between be provided with rubber ring.

6. a kind of full-automatic screen printer according to claim 4, it is characterised in that：The transmission lifting gear（17） Including elevating lever（27）, transmission lifter plate（57）, drive bearing（58）, conveyer belt pressure pin（59）, transmission lifting cylinder（60）, adjust Save support roller（28）, the conveyer belt pressure pin（59）It is connected to the two groups of transmission lifter plates in left and right in X direction（57）Between, and two groups are defeated Send pressure pin（59）Respectively with front beam（18）, rear cross beam（23）On the delivery chute that opens up be slidably matched, the transmission lifter plate （57）Lower section in rack（1）On be provided with transmission lifting cylinder（60）, the elevating lever（27）Both ends are arranged with to rise with transmission Plate drops（57）The drive bearing of cooperation（58）, and elevating lever（27）On be arranged with and conveyer belt pressure pin（59）The adjusting of horizontal alignment Supporting plate（28）, the transmission lifting cylinder（60）With distribution control box（2）It is electrically connected.

7. a kind of full-automatic screen printer according to claim 1, it is characterised in that：The screen frame adjusting device includes Connector sleeve（31）, oscillating bearing（32）, off-network axis（33）And upper junction plate（35）, the connector sleeve（31）It is arranged in side frame （30）Outside, and connector sleeve（31）Inside it is combined with oscillating bearing（32）, the oscillating bearing（32）Upper end is connected with and screen frame Clamp arm（13）The off-network axis of interspersed cooperation（33）, the off-network axis（33）Upper end is provided with upper junction plate（35）, the screen frame folder Arm（13）On be provided with and upper junction plate（35）The screen frame lifting device of cooperation（34）.

8. a kind of full-automatic screen printer according to claim 7, it is characterised in that：The screen frame lifting device（34） Including screen frame lifting cylinder（49）, supporting rod（48）, limiting plate（45）, stop collar（44）, lead screw（47）, regulation handle（46）, The screen frame lifting cylinder（49）It is arranged in screen frame clamp arm（13）Upper and screen frame lifting cylinder（49）Piston rod upper end be connected with Lead screw（47）, the lead screw（47）Middle part is arranged with stop collar（44）, the stop collar（44）Outer sheath is interspersed to be combined with limit Plate（45）, the limiting plate（45）Lower section is provided with and screen frame lifting cylinder（49）Cylinder body cooperation supporting rod（48）, described Lead screw（47）Upper end pass through upper junction plate（35）And screw-thread fit has regulation handle（46）, the screen frame lifting cylinder（49）With Distribution control box（2）It is electrically connected.

9. a kind of full-automatic screen printer according to claim 4, it is characterised in that：The front clamp device（19）With Left clamping device（24）Include be set to rack（1）On positioning seat（52）, the positioning seat（52）On be provided with guide rail Fixed plate（53）, and positioning seat（52）Side is provided with positioning cylinder（51）, the positioning cylinder（51）Piston rod on connect There is the slider connecting plate of " L " shape（50）, the slider connecting plate（50）Bottom and guide rail fixed plate（53）Pass through positioning sliding block （54）It is slidably matched, and slider connecting plate（50）Top is provided with and is opened in front beam（18）On card slot（56）Cooperation is determined Position card column（55）, the positioning cylinder（51）With distribution control box（2）It is electrically connected.