CN201105529Y

CN201105529Y - Effective device automatically realizing pressure on-off of offset press

Info

Publication number: CN201105529Y
Application number: CNU2007201816421U
Authority: CN
Inventors: （请求不公开姓名）
Original assignee: Duoyuan Digital Printing Technology Industry (china) Co Ltd
Current assignee: Duoyuan Digital Printing Technology Industry (china) Co Ltd
Priority date: 2007-10-18
Filing date: 2007-10-18
Publication date: 2008-08-27
Anticipated expiration: 2017-10-18

Abstract

The utility model provides an effective device which can automatically realize the disengaging and engaging pressure of an offset press. A detection signal is input to an electric control part by a photoelectric detection part; instructions are then sent to an electromagnet control mechanism by the electric control part. The pickup of the electromagnet pushes through an ejector pin by the swing of a lever and lays down an African fish when an engaging pressure power rod provides the power for the African fish, thus pushing a control rod to drive the eccentric shaft of a glue roller so as to generate a turnover action and realize the engaging pressure. When a no-paper signal exists, the electromagnet acts again, the ejector pin pushes through a large-head screw which hangs on a control wedge and leads the large-head screw to be disconnected, and the glue roller recovers the original position under the action of a control rod recovery spring. The effective device which can automatically realize the disengaging and engaging pressure of an offset press has simple and smart structure and reliable function.

Description

The efficient apparatus that a kind of automatic realization offset press clutch is pressed

Technical field

The utility model relates to a kind of printing machine, is specifically related to a kind of offset press and controls the efficient apparatus that clutch is pressed automatically

Background technology

The printing of offset press is to utilize the immiscible principle of ink, is coated with one deck printing ink equably on the PS space of a whole page that coats on the plate cylinder, utilizes the pressure that contacts of plate cylinder and blanket cylinder, and picture and text are transferred on the blanket; And then utilize the pressure that contacts of blanket cylinder and impression cylinder, again picture and text are transferred on the paper.During printing, require three cylinders automatic clutch in time: when the paper printing was arranged, three cylinders were drawn close contact mutually, realized the combined pressure printing; When no paper printed, three cylinders were in time made a concession separation, realized tripping idle running.All printing machines all require to possess this function, control mode and mechanism that the various printing machine clutches that each manufacturer produces are pressed all are not quite similar, but how stablizing, reliably, automatically realize the clutch compression functions, is one of main points of each manufacturer's pursuit quality.

A polynary platform prototype clutch pressure mode adopts the Purely mechanical structure, complex structure, and part is various, and fault rate is very high, keeps in repair very inconvenient.For head it off, my company has carried out project verification and has improved.

The utility model content

The purpose of this utility model be for a polynary platform series model provide a kind of stable, reliably, simply, for ease of maintenaince clutch pressure-controlled structure.

For realizing above purpose, controlling organization is mainly by two parts: the one, and photoelectric detection part mainly has the signal detection of paper and no paper; The 2nd, action actuating mechanism is finished the action of combined pressure and tripping and is carried out by the cooperation of three parts.Photoelectric detection part does not become right content of the present utility model, and mechanical actuating mechanism is main contents of the present utility model.Photoelectric detection part is finished by a support component that infrared probe is installed, and detectable signal is inputed to electric control system, and signal instruction is issued magnet control mechanism then.Mechanical actuating mechanism is made up of three parts: magnet control mechanism mainly carries out the electrical control instruction, finishes the realization of tripping and combined pressure auxiliary movement; Combined pressure power rail parts mainly rely on the cam on the impression cylinder that power is provided, and realize that then swing provides power for the combined pressure rotary movement of glue cylinder; On the glue cylinder parts secondary actuator is housed, in order to realize the spacing of self-locking that combined pressure is finished and tripping position.

The utlity model has following characteristics:

1, simple and reliable for structure, be skillfully constructed, be the desirable controlling organization of light-duty little printing machine;

2, dynamo-electric combination can realize Automatic Control;

3, part is simple, is easy to processing, and is cheap for manufacturing cost;

4, good reliability, fault rate is low.

Description of drawings

Fig. 1 is the utility model operation principle schematic diagram

Fig. 2 is the utility model photoelectric detection system work structuring schematic diagram

Fig. 3 is a clutch piezoelectricity magnet controlling organization work structuring schematic diagram

Fig. 4 is clutch pressure actuator (a combined pressure view)

Fig. 5 is clutch pressure actuator (a tripping view)

Fig. 6 is a combined pressure power rail structural representation

The specific embodiment

As shown in Figure 1, paper is transported on the paper bridge by paper feeding mechanism, whether photoelectric detection mechanism detects paper, to judge that signal flows to electric control system, control section sends instruction for the electromagnet in the mechanical actuating mechanism, adhesive and disconnection by electromagnet come the driving device clutch pressure mechanism, thereby realize the clutch pressure-controlled.

As shown in Figure 2, in the photoelectric detection system, supporting traverse 1 both sides are installed on the machine wallboard, and Photoelectric Detection probe 2 sends infrared light, and when having paper to pass through, infrared light is reflected by paper when following, and the probe recipient obtains signal, flows to electric control system; When following no paper, infrared light is not reflected, and probe is done no paper signal processing, flows to electric control system equally.

As shown in Figure 3, in the clutch piezoelectricity magnet controlling organization, when electrical control division was given electromagnet 3 and sent instruction, electromagnetic actuation pushed the clutch bar 7 that bears down on one by action lever 6 and does axial motion; When electromagnet outage, the clutch bar that bears down on one sets back under the effect of back-moving spring 1.Electromagnet 3 is installed on the support 5, is fixed on together on the wallboard 4, and action lever 6 can be swung around supporting revolving shaft 2.

As shown in Figure 4, in the clutch pressure actuator (combined pressure state), when electromagnet 6 adhesives, the clutch bar string moving 8 that bears down on one, drive control pin 10 and loosen control guide rail 11, African flake 12 rides in the guide-track groove, drives African fish 17 downward beats thereupon, at this moment, along with rotating counterclockwise of impression cylinder axle 14, combined pressure power cam 13 high points push combined pressure bearing 15, drive combined pressure power rail 16 swing counterclockwise, the power rail head withstands on African fish mouth 17, makes it produce the left-hand setback.Control lever 3 is installed on the glue cylinder eccentric shaft 18, the motion of Africa fish 17, push lever 3 produces flip-flop movement, drive fork 5 dextrad forward travels, under the effect of spring leaf 4 thrusts, major part screw 9 is just in time hided and is tangled on the inclined-plane of control skewback 7, and this moment, glue cylinder and impression cylinder, plate cylinder were drawn close the generation combined pressure simultaneously.During combined pressure, three cylinders are combined pressure in the cylinder breach, its accurately the combined pressure time comprehensively determine by photoelectric probe signal and action of cam time, avoid producing clutch in advance and press or produce overvoltage.

As shown in Figure 5, in the clutch pressure actuator (tripping state), when no paper signal, electromagnet 7 adhesive once more, the clutch bar 9 that bears down on one pushes major part screw 6 and throws off control skewbacks 8 inclined-planes, control lever 3 drives 4 deflections of glue cylinder eccentric shaft and resets under the pulling force of back-moving spring 1, arrives till the tripping limited post 2 always.At this moment, the control guide rail lifts under the effect of reduction torsion spring and resets, and drives African fish 11 and also lifts simultaneously, and combined pressure power rail 15 is done reciprocal idle stroke swing with power cam 13 under the effect of reduction torsion spring.

As shown in Figure 6, in the combined pressure power rail structural representation, combined pressure power rail 3 is contained on the back shaft 1, and needle bearing 9 is housed in it, has hugging on the power rail, and combined pressure bearing 4 is contained on the back shaft 5.Combined pressure power cam 10 provides power for the combined pressure power rail, and torsion spring 6 provides the power that resets for power rail.

As shown in Figure 7, glue cylinder alone becomes parts, and power rail 2 is contained on the glue cylinder eccentric shaft 8, and fork 4 and African fish 13, tripping limited post all are contained on the power rail 2, and fork and African fish can both freely swing around the little axle of support separately.

When manipulating, note detection and clutch pressure actuator jointly control, have respectively separately by key control, when pressing the paper feeding button separately, a machine paper feed but do not produce combined pressure is pressed clutch when pressing button simultaneously, could produce the clutch pressure, thereby satisfy user's instructions for use.

Claims

1. the utility model is a kind of efficient apparatus of clutch pressure of automatic realization offset press, comprise photoelectric detection part and action operating part, the action operating part comprises three mechanical actuating mechanisms: magnet control mechanism, clutch hydraulic power structure, glue cylinder are realized switching mechanism; It is characterized in that: photoelectric detection system provides paper does not have the paper signal, and magnet control mechanism carries out signal and drives, and mechanism provides power for the clutch pressure-controlled, and the combined pressure power rail provides reliable motive force for the rotary movement of glue cylinder; Several actuating mechanism cooperation are finished the clutch compression functions jointly.

2. the efficient apparatus that the clutch of a kind of automatic realization offset press according to claim 1 is pressed, photoelectric detection part, its feature in: infrared probe is housed on the supporting traverse, does not have the paper signal detection in order to paper to be arranged.

3. the efficient apparatus that the clutch of a kind of automatic realization offset press according to claim 1 is pressed, action actuating mechanism, its feature is pressed power rail in: impression cylinder cam for clutch power is provided, power rail provides power for the upset of glue cylinder, and magnet control mechanism provides power by 7 newton's electromagnet for controlling organization.

4. the efficient apparatus that the clutch of a kind of automatic realization offset press according to claim 1 is pressed, action actuating mechanism, its feature in: when the fork major part screw on the glue cylinder tangles the control skewback, be the combined pressure state of machine; Fork major part screw breaks away from the control skewback, is machine tripping state when control lever arrives the tripping limited post always.