CN86103396B - Equipment for separating offset printing block and removing spacer paper in the middle - Google Patents

Abstract

Offset printing plates are generally arranged in stacks by producers, and middle packing paper is arranged in the stack. In order to carry out the successive processing, a printing plate stack is arranged in a material box, and one printing plate on the top of the printing plate stack is taken off by one adsorption plate. Besides, after the middle packing paper is removed by blowing, the printing plate is sent to the next procedure. Because the blowing can likewise separate a plurality of printing plates on the upper side of the printing plate stack remaining in each time piece by piece, the printing plates are not attached to the printing stack any more. The printing plate dislocation generated by the blowing can be corrected by a mechanism.

Description

The device of packing paper in the middle of separating offset printing block and the removal

The present invention relates to a kind of device, can be in modern offset printing version processing equipment by it, in exposure machine, with become the buttress supply a piece of galley separate and remove the middle packing paper that has usually.

In the modern machine of printing industry; in the exposure machine especially for the offset printing version; wish that all more than ground take out galley from hopper; and unexposed offset printing version generally becomes buttress to provide with 50 to 100, is protected as middle packing paper with thin paper because the photosensitive surface of each sheet-fed printing version is very tender and lovely in this case.The galley buttress should directly be placed in the hopper after removing external packing as far as possible.From then on galley taken out by many ground in the hopper, for example takes out and send to further processing by adsorption plate or clip.

This very simple at first sight process, but run into a series of difficulties in practice:

The photosensitive surface of galley is scratched especially easily.Therefore galley in no case allows to slide on the surface as conveyer on other surface, does not also allow galley to slide each other.

In general, the supply status of galley is separated from each other with middle packing paper, so they can not produce friction each other.After taking off a galley, then must remove this centre packing paper from the galley buttress.

If remove middle packing paper by blowing, then the consumption of air blast should be as far as possible little.

At the galley supply status, those galleys in the galley buttress are pasted very tightly mutually.Therefore successfully from the galley buttress, to take off a uppermost galley in order guaranteeing, to require to adopt separation circuit that it and galley buttress are unclamped.

This device should be able to be handled the galley of different size with same hopper.Every galley all should be extracted mechanism at same position all the time and fix.

Known a kind of printed sheet disengagement gear from the patent DE-AS2125672 of Germany by air blast work.But, in this device not and also the device that does not have possibility to be put forward according to here remove in the middle of the mechanism of bed course.The leading edge of the printed sheet that it can only be gone up the negative buttress most upwards blows afloat till the adsorber that uppermost printed sheet is used to further to carry adsorbs.Because when upwards blowing afloat, can not expect the distortion of printed sheet, so the position that printed sheet is inhaled also can not be very accurate, the desired accuracy of out of reach offset printing exposure machine for example.In addition, when adsorber takes off uppermost printed sheet, just the marginal portion of printed sheet upper surface to slip over along the seamed edge of pinch device, if this situation of paper still can stand, yet this is unallowable for the upper surface of offset printing version.

From the known a kind of device that blows down middle packing paper of Germany patent DE-OS3012815.Yet the there is not mentioned in order to separate several top galleys and is adhered to device on the galley buttress to avoid them.Therefore equally just there is not to describe the mechanism that for example galley of dislocation is moved on to again the tram yet.Be not propose to introduce the device of air blowing and the device of the paper that guiding will blow away with the key distinction of the present invention.Rule of thumb in this structure of being introduced, the eddy current of blowing is easy to make paper " wrinkling ", so that causes fault.Antithesis, there is the air blowing guidance device of boundary limitation the side that the present invention has introduced the rule in a flat passage, and packing paper can produce " showy slip " rule, vibrationless in the middle of making.

The objective of the invention is to, a kind of device that can satisfy all conditions mentioned above is provided.The present invention achieves the above object by following method, its method is, the F/s adsorption plate of work upwards mention make be raised go up below the galley most and remaining galley buttress and hopper sidewall between constitute a passage with square-section

Even under the different situation of printed panel specification, the side of above-mentioned passage also is still the border,

Minimum have two radius stays, and when putting into the galley buttress in this device, the end face that galley is piled up neatly leans against on the radius stay.

Above-mentioned radius stay is hollow, and is provided with radial slot in the direction of laying perpendicular to galley buttress, and blowing can be drawn from this groove and be blown at the end face of above-mentioned galley buttress and be blown into the above-mentioned passage,

Placed the calotte of band spring on described radius stay, they have partly covered described groove,

On adsorption plate, be mounted with the block of handling described calotte,

Subordinate phase adsorption plate in work moves to outside the hopper fully,

The galley relative with the position of radius stay is piled up neatly the minimum bar that an activity is set of a side in the hopper bottom,

Described bar can leave the galley buttress and translate under the hopper baseplane,

Be provided with the turning bar of a plurality of described types in the hopper bottom corresponding to the galley of different size.Other structure with advantage is characterized by, if the border of passage side is made of hopper sidewall itself, then the dividing plate by the band spring that is arranged on the hopper bottom is constituted.

In order to constitute the border of passage side, the sidewall of hopper is transportable, and can pin with the corresponding position of galley specification.

The invention will be further described by Fig. 1 to Fig. 4 below.

Wherein:

The lateral plan of equipment when Fig. 1 puts down for adsorption plate

Fig. 2 is the lateral plan of equipment when opening insufflation channel

Fig. 3 is the structure of the dividing plate of band spring

Fig. 4 is the front elevation of equipment

The offset printing version of packing paper is taken out back one-tenth galley buttress (1) from external packing and is put into the hopper (2) that end face opens wide in the middle of unexposed having.

During at least two radius stays (3) were inserted at the bottom of the case near one of end face that opens wide, galley buttress (1) leaned against on this radius stay.Be drilled with the hole in the middle of the radius stay (3) and in the direction by galley buttress (1) a vertical groove (4) arranged, the blowing of introducing from below can blow to the end face of galley buttress (1) from this groove.There is a calotte (6) to go up slip above the radius stay (3), and covers slotted zones, upwards be pressed against on the block (9) by spring (8) at the quiescence cap in radius stay (3) at pilot pin (7).When pressing down calotte, it partly shelters from groove (4).

Spacing size between hopper (2) sidewall makes it just in time to pile up neatly with the galley of maximum specification to be processed to adapt.The galley buttress less to dimensions as shown in Figure 3, is provided with the dividing plate (10) of some band springs in the bottom of case (2).Dividing plate moves in guide piece (11) and is upwards drawn by spring (12).When the specification of galley was big, the weight that dividing plate is printed the version buttress was to pressing down, and flushed with at the bottom of the case to the upper limb to it.Distance between the dividing plate of band spring should adapt with the specification of the printed panel that is adopted.When handling the galley of maximum specification,, the base plate (21) of packing into earlier before galley is piled up neatly should put for the last several versions that prevent the galley buttress make it upwards to be pushed up owing to their weight no longer is enough to press down dividing plate.Its weight should be able to make that the power that overcomes spring (12) under the effect of its own wt makes dividing plate (10) remain on lower position.

Placed a mobilizable adsorption plate (13) on hopper (2), it can link to each other with vacuum or cut off, and is installed on the guide rail that does not have special expression on the figure.These guide rails make adsorption plate (13) can drop on the position that Ban Duo (1) goes up defined exactly, also can maintain a certain distance in vertical direction and galley buttress (1).Fork-shaped block (14) is placed on the adsorption plate (13), make it when adsorption plate is fallen, lean against above the calotte (6) and the power that overcomes spring (8) to pressing down.The lower edge of calotte (6) covers in groove (4) more or less.Go up the amount that time slot is blocked and determine when adsorption plate (13) drops to version buttress by the residual altitude of galley buttress (1).

During bar (15) is placed at the bottom of the case movably in addition, makes them lean against galley buttress (1) and go up and radius stay (3) side vis-a-vis with the upright position.Bar (15) can pass through leverage (16) and rotate, the face under case of hiding of the groove (17) at the bottom of making it pass through case.

The mode of operation of this device is as follows:

As shown in Figure 1, adsorption plate (13) drops on the galley buttress (1).The power that block (14) overcomes spring (8) with calotte (6) to pressing down.Bar (15) is in vertical position.Connect in adsorption plate (13) after the vacuum, it holds a uppermost bar printing version of galley buttress.After this, the absorption strip a uppermost plate some millimeters of rising (Fig. 2) that are adsorbed on above it, thereby below that piece plate that is raised and between the residue galley buttress, opened a flat passage (18), the side of passage is the boundary with the sidewall of hopper (2), is the boundary with the dividing plate (10) of band spring hour then in the galley dimensions.The position that calotte (6) is arrived by means of block (14) is just in time alignd the groove of radius stay (3) with the upper limb of passage (18).Blowing infeeds radius stay from air input passage 5 after bar (15) moves down by leverage (16).Air comes out and is blown into the passage of opening (18) and blows to the end face of galley buttress (1) from groove (4).The requirement of blowing can imagine it is very little, because it only can flow out from groove (4) at the height of the passage that is opened (18).The remainder of groove (4) is printed version buttress (1) and blocks fully.With the situation of highly corresponding size of passage (18) and blowing amount under following result can take place:

Middle the packing paper (19) of protecting the galley surface skidded off between galley that sidewall is being raised and galley are piled up neatly and entered a catcher by not shown passage along air flow line being used between monolithic version that is placed on galley buttress in common mode.This air-flow is also clamp-oned between uppermost several the galleys from the end face of galley buttress, they is mentioned a little, even each " separation ".Only in this way just can make adsorption plate (13) can successfully mention next piece plate, because adhere to each other each other between each piece plate usually in the galley that the is provided buttress.Make in each piece version separating process described, uppermost three to four versions can produce a bit along air flow line as shown in Figure 2 and move.They must be sent back to position (leaning against on the radius stay (3)) accurately, because the processing request adsorption plate (13) that galley is done next step always adsorbs galley at same position, also can be placed on exactly on certain position after guaranteeing.Therefore adsorption plate (13) in the middle of blowing down packing paper (19), separate galley and lift position 20(Fig. 2 on piling up neatly uppermost several versions and stopping after the blowing again).At this moment bar (15) is put go back to the upright position again by leverage (13).They with mistake the position uppermost several versions push radius stay (*) to, return to its correct initial position.Adsorption plate (13) is sent to next process with adsorbed galley by unshowned guide rail, and by the cut-out vacuum it is put down there and get back to position shown in Figure 2 20 then.Drop to galley buttress (1) at adsorption plate (13) and restart previously described process by programming control afterwards.

The present invention can be applicable on the materials such as all galleys that have middle packing paper or similar material and need individually to continue after removing middle bed course to process that provide with the forms of piling up neatly heap, film, film owing to having many advantages.Field of application of the present invention is not limited only to printing industry.

Claims (14)

1, separating offset printing block and remove in the middle of the device of packing paper, it comprises:

One does not have end wall, the hopper of Chang Kaiing above,

One is used to extract the galley buttress adsorber of a bar printing version topmost, and it moves to outside the hopper fully in the subordinate phase of work,

A device that is used for also not making simultaneously the border, side in the galley size,

Minimum two hollow radius stays, when inserting this device, the end face of galley buttress leans against on the radius stay,

Above-mentioned radius stay is provided with radial slot in the direction of laying perpendicular to the galley buttress, and blowing can be drawn from this groove and be blown on the end face of above-mentioned galley buttress,

It is characterized in that,

Above-mentioned adsorber is an adsorption plate, above-mentioned hopper has sidewall, upwards mention at the F/s adsorption plate of work and to make going up below the printed panel most and constituting a passage between remaining printing straight sheet pile and the hopper sidewall of being raised with square-section, the blowing of blowing on above-mentioned printing straight sheet pile end face is blown into above-mentioned passage

The spring calotte that is placed on the above-mentioned radius stay has partly covered above-mentioned groove,

On adsorption plate, be mounted with the block of handling above-mentioned calotte,

Printing straight sheet pile one side relative with the position of above-mentioned radius stay is provided with the bar of a minimum activity bottom hopper,

The bar of above-mentioned activity can leave the overturning of galley buttress below the hopper baseplane,

The turning bar of the above-mentioned type of a plurality of galleys corresponding to different sizes has been installed in hopper bottom.

2, device according to claim 1 is characterized in that, if the border of passage side is made of hopper sidewall itself, then the dividing plate by the band spring that is arranged on the hopper bottom is constituted.

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