CN202242283U

CN202242283U - Device for automatically correcting and positioning bedplate moving step pitch

Info

Publication number: CN202242283U
Application number: CN2011200647615U
Authority: CN
Inventors: 龚黎阳; 顾顺金
Original assignee: SHANGHAI AONIBENTE PRINTING EQUIPMENT CO Ltd
Current assignee: SHANGHAI AONIBENTE PRINTING EQUIPMENT CO Ltd
Priority date: 2011-03-14
Filing date: 2011-03-14
Publication date: 2012-05-30
Anticipated expiration: 2021-03-14

Abstract

The utility model provides a device for automatically correcting and positioning a bedplate moving step pitch. The device comprises a set of accurate bedplate moving mechanism driven by using a PLC (Programmable Logic Controller) control servo motor, a plurality of movable bedplates, a bedplate positioning mechanism, a bedplate position detection mechanism and a colored screen printing machine, and is characterized in that: the colored screen printing machine is a digital full-automatic colored screen printing machine to which a PLC is applied; the accurate bedplate moving mechanism driven by using the PLC control servo motor can be a master control mechanism of the full-automatic screen printing machine; each movable bedplate consists of a bedplate bracket, an adjusting frame, a bearing bedplate and a walking roller; the bedplate positioning mechanism consists of a cylinder, a guide groove seat, a slide block, a roller and a U-shaped positioning groove; and the bedplate position detection mechanism consists of a monitoring probe, a signal transmission line, a monitor and a control PLC in which an analysis software program is installed. The device has the advantages that: I, the movable bedplates can keep in a free state within a certain range after accurately moving to a preset station, and other external force is not applied to a positioning element apart from friction force produced by the dead weights of the movable bedplates when the positioning element acts, so that positioning accuracy is increased, and the service life is prolonged; and II, signals detected by using the monitoring probe and a positioning target are transmitted to the PLC for comparison to determine whether the movable bedplates accurately reach the preset station and can keep in the range of free state, and running parameters of the servo motor are adjusted and corrected in real time, so that the quality of a printed product is enhanced effectively.

Description

A kind of platen moves the device that step pitch is revised and located automatically

Technical field

The utility model relates to a kind of method and mechanism of the removable platen resetting of undertaking the printing of of screen process press, particularly relates to a kind of platen and moves the device that step pitch is revised and located automatically.

Background technology

General colored screen process press is the chromatography half tone different colours, is installed in different station respectively, moves to each station place to the platen of undertaking the printing of again, realizes chromaticity printing.And the platen of undertaking the printing of directly influences the quality of colored printing in the positioning accuracy at each station place.Utility model patent 02243661.8 " decorating machine bedplate pressure positioner " has been introduced a kind of bedplate positioning device, the structure of utilizing platen and transmission mechanism to float and be connected, and it is inconsistent to overcome the transmission step pitch, and platen is realized forcing the location.Floating spring produced pressure to V-type fork and roller when the shortcoming of this device was the location, quickened its wearing and tearing; And the counter-force of spring makes transmission mechanism produce displacement again, and the initial position of next stroke is changed, and the transmission step pitch is more inconsistent.Inconsistent because of the transmission step pitch, floating spring changes the pressure direction of V-type fork and roller generation thereupon, and positioning accuracy is greatly affected.

The utility model content

The purpose of the utility model is to improve during automatic printing machine produces, and the platen positioning accuracy provides a kind of platen to move that step pitch is revised automatically and the device of location, with this remedy efficient in the production, quality, etc. defective.

For this reason; The utility model provides a kind of platen and move the device that step pitch is revised and located automatically, comprise the platen accurate travel mechanism of a cover, several removable platens by PLC control driven by servomotor; The platen detent mechanism, platen position detecting mechanism and a printing machine are formed.Said accurate platen travel mechanism by PLC control driven by servomotor can utilize the master control mechanism of full-automatic decorating machine, can also be designed to each platen and independently have a cover is controlled driven by servomotor by PLC accurate platen travel mechanism; Said removable platen is made up of Plate support, adjustment rack, bearing ink pad version, roller; Said platen detent mechanism is made up of cylinder, gathering sill seat, slide block, bearing and locating slot; Said platen position detecting mechanism is made up of, signal transmssion line and analysis and Control software.

The effect of this device is: the first, and mobile platen can be in free state after accurately moving and arriving predetermined station within the specific limits; During the setting element action; Except that the frictional force that moves the generation of platen dead weight, do not receive other external force, thereby improve positioning accuracy and service life.

The second, through the signal of monitoring probe, location target detection, be sent to and can confirm to move platen after PLC compares, whether accurately move to arrive and be scheduled to station, can be in the scope of free state, and adjust and revise the servomotor operational factor in real time.Improve the stamp product quality effectively.

Description of drawings

Fig. 1, Fig. 2 are two kinds of different conditions sketch mapes of detent mechanism;

Fig. 3 is a platen position detecting mechanism sketch map;

Fig. 4 is the detected image sketch map.

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, identifier declaration among the figure:

1, part moves platen, and 2, platen transmission pin-and-hole, 3, travel mechanism's trundle, 4, platform version location U type groove, 5, positioning roller; 6, positioning sliding block, 7, positioning cylinder, 8, the positioning runner seat, 9, the trundle gap; 10, platen location target, 11, the position monitoring probe, 12, the telltale mark line on the target, 13, the built-in cross alignment line of monitoring probe; 14, the built-in measurement division line of monitoring probe, 15, place-centric line skew, 16, U type groove place-centric line, 17, roller place-centric line; 18, man-machine interface, 19, PLC, 20, servomotor controller, 21, pin diameter and pin-and-hole length poor.

The utility model provides a kind of platen and move the device that step pitch is revised and located automatically; Comprise the platen accurate travel mechanism of a cover by PLC control driven by servomotor; Several removable platens, the platen detent mechanism, platen position detecting mechanism and a colored silk screen printing machine are formed.

Said colored silk screen printing machine should be a digitlization full automatic colour screen decorating machine of using programmable controller (PLC).

The said accurate travel mechanism of platen by PLC control driven by servomotor; Can utilize the master control mechanism of full-automatic decorating machine; It is characterized in that the accurate travel mechanism of platen, have and be used to drive the trundle that platen moves at least more than ten by PLC control driven by servomotor.

Said removable platen is made up of Plate support, adjustment rack, bearing ink pad version, walking roller; It is characterized in that said removable platen also is equipped with location U type groove and transmission pin-and-hole.

Said platen detent mechanism is made up of cylinder, gathering sill seat, slide block, roller and location U type groove; It is characterized in that said cylinder is installed in gathering sill seat back, on the cylinder front piston rod, slide block is housed, slip front is equipped with roller, and slide block can slide in the gathering sill seat.

Said platen position detecting mechanism is made up of monitoring probe, signal transmssion line, monitor and control PLC that the analysis software program is housed.It is characterized in that said monitoring probe should be furnished with built-in aligning cross hairs and division line is used in measurement; Said monitor can utilize the man-machine interface of full-automatic decorating machine master control mechanism.

More than the course of work of device is following:

The full automatic colour screen decorating machine starts, and by the accurate travel mechanism of platen of PLC control driven by servomotor, the data that follow procedure is set with the step pitch of standard, through trundle and transmission pin-and-hole, are dragged to predetermined work position (as shown in Figure 1) to platen 1.This moment, positioning cylinder 7 was in original state, piston rod, positioning sliding block 6, positioning roller 5 withdrawals, and positioning roller 5 separates with platform version location U type groove 4; Platen 1 motion suspends, and the direction of motion front side of trundle 3 becomes free state with transmission pin-and-hole 2 medial surfaces by contacting; Between location U type groove place-centric line 16 and the roller place-centric line 17, place-centric line skew 15 is arranged.The position monitoring probe 11 of platen position detecting mechanism (Fig. 3) aligns platen location target 10, gathers picture signal; Through signal transmssion line; Be sent to PLC19 and carry out data and preservation,, can observe the platen relative position information through man-machine interface 18 display images (Fig. 4).PLC19 sends framing signal; Positioning cylinder 7 action (as shown in Figure 2) piston rods, positioning sliding block 6, positioning roller 5 stretch out; Positioning roller 5 one sides are touched platform version location U type groove 4, make platen 1 reach, and positioning roller 5 gets in the platform version location U type groove 4; U type groove place-centric line 16 overlaps with roller place-centric line 17, and accomplish the location.The position monitoring probe 11 of platen position detecting mechanism (Fig. 3) is gathered the collection picture signal once more, and PLC19 carries out data and preservation, and comparison position disalignment amount setting value and detected value deviation are sent real-time monitoring information.The data that the accurate travel mechanism of platen follow procedure resets drive platen 1 with up-to-date step pitch, begin next circulation.(Fig. 2) platen 1 fine motion during the location, the direction of motion front side of transmission pin-and-hole 2 medial surfaces and trundle 3 produces gap 9, and this gap 9 values should be less than difference 21 values of trundle diameter and trundle hole length, and this is to guarantee that platen is in the necessary condition of free state.This gap 9 values also should can correctly be inserted in the platform version location U type groove 4 to guarantee positioning roller 5 less than the sixth of positioning roller 5 diameters simultaneously.

Claims

1. a platen moves the device that step pitch is revised and located automatically; Comprise the platen accurate travel mechanism of a cover by PLC control driven by servomotor; Several removable platens; The platen detent mechanism, platen position detecting mechanism and a colored silk screen printing machine is characterized in that: the digitlization full automatic colour screen decorating machine that said colored silk screen printing machine is a using PLC; The said accurate travel mechanism of platen by PLC control driven by servomotor can utilize the master control mechanism of full-automatic decorating machine; Removable platen is made up of Plate support, adjustment rack, bearing ink pad version, walking roller; Said platen detent mechanism is made up of cylinder, gathering sill seat, slide block, roller and location U type groove; Said platen position detecting mechanism is made up of monitoring probe, signal transmssion line, monitor and control PLC that the analysis software program is housed.

2. platen according to claim 1 moves that step pitch is automatically revised and the device of location, it is characterized in that: the accurate travel mechanism of platen has and is used to drive the trundle that platen moves at least more than ten.

3. platen according to claim 1 moves the device that step pitch is revised and located automatically, it is characterized in that: said removable platen also is equipped with location U type groove and transmission pin-and-hole.

4. platen according to claim 1 moves the device that step pitch is revised and located automatically; It is characterized in that: said cylinder is installed in gathering sill seat back, on the cylinder front piston rod, slide block is housed; Slip front is equipped with roller, and slide block can slide in the gathering sill seat.

5. platen according to claim 1 moves the device that step pitch is revised and located automatically, it is characterized in that: said monitoring probe should be furnished with built-in aligning cross hairs and use division line with measuring; Said monitor also can utilize the man-machine interface of full-automatic decorating machine master control mechanism.