CN2607252Y

CN2607252Y - Screen printer with automatic centering positioner

Info

Publication number: CN2607252Y
Application number: CN 03236865
Authority: CN
Inventors: 黄火盛
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-27
Filing date: 2003-01-27
Publication date: 2004-03-24
Anticipated expiration: 2013-01-27

Abstract

The utility model disclose a screen printer with a self centering registration device, the printer comprises a bedplate, a scrapping printing slide rail bedplate is arranged in the bedplate, a movable screen is arranged under the scrapping printing slide rail bedplate, frame bars are arranged around the screen, an off printing plate pneumatic shuttle is arranged between the frame bar and the scrapping printing slide rail bedplate; a self centering registration device comprises a permanent seat, the permanent seat is arranged in the surface of the scrapping printing slide rail bedplate which is opposite with the screen, an axostyle is arranged in the permanent seat, the other end of the axostyle is covered in a shaft seat, the shaft seat is paralleled and fixed in the frame bars, and a universal bearing connected around the axostyle is covered in the shaft seat. Each time after printing and then leaving the printing table surface, the screen is positioned by the axostyle, and when the screen upwards leaves the printing table surface, the axostyle does not get away from the shaft seat by the aid of the universal bearing, thereby making the screen exactly fixed in the position.

Description

Screen printer with automatic aligning positioner

Technical field

The utility model relates to a kind of screen printer, more particularly, relating to a kind of location that utilizes can make half tone accurately be positioned on the upright position, axle center behind the device, and continuously or when repeating print, can be because of half tone when moving, version is not producing position deviation, and cause literal on the half tone or pattern to fail to be printed on screen printer on the printed article assigned address.

Background technology

General traditional screen printer, printing machine in particular for the circuit board printing, as depicted in figs. 1 and 2, include a support, this support is provided with left and right slide rail set in its both sides, be embedded with the printing table top parallel with support in these slide rail set, this printing table top can move around on support by slide rail, and this printing table top is used to shelve printed article.Above support, be provided with one and scrape the slide rail pedestal, scrape at this and to be provided with doctor blade device and half tone clamping apparatus on slide rail pedestal, then be provided with one from version vapour pressure device on the limit of respectively holding that scrapes the slide rail pedestal, and scraping the slide rail pedestal is installed with one in its front end both side edges and stretches out and be down the L shaped body of rod, the free end of this body of rod is provided with bearing, this bearing is just conflicted on the edge of half tone left and right sides moulding, so, when being completed for printing when version is moved, can be pressed against the moulding edge about half tone by the bearing conflict of the body of rod, the half tone front end is fixed on the position, yet because of the printing ink on the half tone has viscosity, and contact-making surface because of assembling free-ended bearing axis of L type and left and right sides moulding when installing, can't reach the hundred-percent depth of parallelism, thereby gapped problem produces, and this structure (being clearance issues) will must be done impel moulding and the mutual reaction force of the free-ended bearing generation of L type from the version action because of when printing institute, will produce the above gap skew of twice at least, so in carrying out accurate printing process, printing precision instability and deviation state can appear, and therefore undesirable in the use.

In order to improve the various shortcomings of above-mentioned conventional apparatus, creator in the utility model is through the long-term endeavour research and experiment, finally development and Design goes out a kind of half tone that makes and accurately is positioned on the upright position, axle center, and continuously or when repeating print, can be because of half tone when moving, version is not producing position deviation, and cause literal on the half tone or pattern to fail to be printed on screen printer on the printed article assigned address.

Summary of the invention

The main purpose of screen printer is to solve existing screen printer in carrying out accurate printing process in the utility model, is prone to the problem of printing precision instability and deviation state.Simultaneously also for a kind of screen printer with automatic aligning positioner is provided, so that half tone accurately is positioned on the upright position, axle center, and continuously or when repeating print, can be because of half tone when moving, version is not producing position deviation, and cause on the half tone literal or pattern to fail to be printed on the assigned address of printed article.

Screen printer in the utility model has a support, above this support, be provided with one and scrape the slide rail pedestal, have scrape printing cutter mechanism and half tone holding structure at this pedestal, and the half tone holding structure has been seized half tone on both sides by the arms, be respectively equipped with moulding at the half tone periphery, appropriate location at these mouldings is provided with from version vapour pressure device, to drive the half tone lifting, and on relative moulding, be provided with a positioner at least, this positioner is provided with one and is fixed on the holder that scrapes on the slide rail base-plates surface, be provided with an axostylus axostyle in this holder, this axostylus axostyle other end is coated with one and is fixed on the axle bed through calibrating in the moulding, after each printing, make the half tone that is close to the printing table top can be by moving when lifting off to rising from version vapour pressure device, can depart from the vertical central position with unlikely by being enclosed within the axostylus axostyle location in the axle bed, thereby not need the each position that before printing, all need proofread and correct half tone.

In addition, screen printer in the utility model fixedly is provided with a universal bearing that is linked in the axostylus axostyle periphery in the axle bed, make half tone by means of the vapour pressure device action, and lift off printing during table top according to scraping direction, axostylus axostyle can be by the effect of universal bearing, and unlikely disengaging axle bed, thus, after half tone was lifted off the printing table top, half tone still can be positioned on the position, and then when each printing, can both accurately be printed on the printed article.

In addition, screen printer in the utility model is provided with an assist location member, promptly the appropriate location in the middle of the half tone moulding is provided with the assist location member, this member is provided with the pedestal of along continuous straight runs location, this pedestal is provided with movable sliding block, this slide block is provided with rotating rotating shaft, this rotating shaft is fixed on the moulding of half tone, this rotating shaft can upwards be lifted off printing back rotation during table top along scraping direction in regular turn with half tone, in use, half tone makes the displacement error of half tone reduce to lower except can more can further locating by the assist location member by the automatic aligning positioner location.

Description of drawings

The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the schematic perspective view of screen printer in the utility model;

Fig. 2 is the three-dimensional enlarged diagram of traditional screen printer from version automatic aligning positioner;

Fig. 3 is the three-dimensional amplification decomposition figure of A part among Fig. 1;

Fig. 4 is the schematic diagram one during the half tone start in the utility model;

Fig. 5 is the schematic diagram two during the half tone start in the utility model;

Fig. 6 is the schematic diagram three during the half tone start in the utility model;

The three-dimensional amplification decomposition figure of B part among Fig. 7 Fig. 1;

Fig. 8 is the sectional schematic diagram of assist location member when implementing in the utility model.

The specific embodiment

As shown in figures 1 and 3, screen printer is provided with a support 10, the both sides of this support 10 respectively are provided with relative and outward extending left and right sides slide rail set 11, between these left and right sides slide rails 11, be embedded with the printing table top 20 of movable slippage, this printing table top 20 is used for fixing object to be printed (being circuit board in the present embodiment), and support 10 is respectively equipped with a vertical shaft pipe 12 on each end of one side that left and right sides slide rail set 11 is extended laterally, these vertical shaft pipes 12 are fixed on the outer side edges of left and right sides slide rail set 11, and in these vertical shaft pipes 12, respectively be provided with expansion link 121 extending or that shorten, these expansion links 121 move up and down by the driving of half tone lifting pneumatic shuttle 90, and these expansion links 121 have one to scrape slide rail pedestal 40 in the termination away from vertical shaft pipe 12, scrape at this and to be provided with a scrape printing cutter device 50 on slide rail pedestal 40, this scrape printing cutter device 50 is used for printing and covers China ink (because of similar to traditional wire mark apparatus structure, and not creation emphasis of the present utility model, so describe in detail no longer separately), this scrapes slide rail pedestal 40 and is respectively equipped with small-sized from version pneumatic shuttle 30 on each end limit, these are located on the moulding 61 of a half tone 60 peripheries from the version pneumatic shuttle 30 outside terminations of protruding, and this half tone 60 is positioned at and scrapes under the slide rail pedestal 40.

As shown in Figure 3, half tone 60 the appropriate location of its peripheral moulding 61 be provided with at least one group be positioned on the relative edge from version automatic aligning positioner 70, this positioner 70 is provided with an axle center holder 71, this axle center holder 71 passes by screw rod 712 and locks and scraping on the relative appropriate location of slide rail pedestal 40 and half tone 60, in this axle center holder 71, be provided with an axostylus axostyle 72, the other end of this axostylus axostyle 72 is set in the axle bed 73, this axle bed 73 is fixed on the moulding 61 in the mode parallel with moulding 61, and in this axle bed 73, be arranged with a universal bearing 74 that is articulated in axostylus axostyle 72 peripheries, desire to lift off when printing table top 20 so that be completed for printing back half tone 60 at every turn, but half tone 60 mats are set on axostylus axostyle 72 location in the axle bed 73, and upright position, unlikely disalignment.As Fig. 4, Fig. 5 and shown in Figure 6, the start of controlling by the automaton (not shown) on the support 10 when half tone 60 from version vapour pressure device 30, and when upwards lifting off printing table top 20 under it, axostylus axostyle 72 can be by the effect of universal bearing 74, and unlikely disengaging axle bed 73, thus, when half tone 60 stops to rise, half tone 60 still can be positioned on the position, and then make half tone 60 when constantly repeating print continuously, neither meeting departs from original fixed point, and it is inaccurate not have a printing, or the situation that needs to reorientate after each printing takes place.

As shown in Figure 7, half tone moulding 61 is provided with assist location member 80 at middle appropriate location, on this assist location member 80, be provided with a pedestal 81, the side plate that this pedestal 81 extends to both sides is provided with perforation 812, and be provided with a groove 811 in this pedestal 81, when mounted, pedestal 81 passes perforation 812 by screw rod 813, and locking is scraping on the slide rail pedestal 40, makes the moulding 61 of the opening surface of groove 811 to half tone 60 simultaneously.In this groove 811, be embedded with the slide block 82 (being a circular block in the present embodiment) of an activity, in this slide block 82, be provided with a coaxial with it and rotating rotating shaft 83, the perforation 831 that this rotating shaft 83 is provided with relatively and extends vertically, can pass perforation 831 by screw rod 832 to make rotating shaft 83, and be fixed on the moulding 61 of half tone 60, this rotating shaft 83 can be after printing along scraping direction swinging up and down and rotate and with half tone 60 according to groove slippage up and down, in use, as shown in Figure 8, half tone 60 is except doing the location by positioner 70, more can do further location, so, can make the displacement error of half tone 60 reduce to lower by assist location member 80.

In sum, the screen printer in the utility model is adopting positioner 70 and align member is after 80s can have, imitate accurate in locating to half tone 60, guarantees printing effect and quality.

Claims

1. screen printer with automatic aligning positioner includes:

One support is provided with on this support and scrapes the slide rail pedestal, scrapes the half tone that the slide rail pedestal has an activity at this, and this half tone periphery is provided with moulding, at this moulding and scrape be provided with between the slide rail pedestal can make that half tone moves up and down from the version pneumatic shuttle; It is characterized in that: described screen printer also includes:

One be used to locate described half tone from version automatic aligning positioner, this positioner is provided with a holder, this holder is solid to scrape on slide rail pedestal and the half tone facing surfaces, this holder is provided with an axostylus axostyle, the other end of this axostylus axostyle is set in the axle bed, this axle bed is fixed on the moulding in the mode parallel with moulding, and is arranged with a universal bearing that is articulated in the axostylus axostyle periphery in this axle bed.

2. according to the screen printer described in the claim 1, it is characterized in that: the appropriate location of described printing machine in the middle of the half tone moulding is provided with the assist location member, this member is provided with the pedestal of along continuous straight runs location, in this pedestal, be provided with mobile slide block, this slide block is provided with rotating rotating shaft, and this rotating shaft is fixed on the moulding of half tone.