DE1884167U - DEVICE FOR MAKING COPIES. - Google Patents

Description

Apparatus for "making copies."

The invention relates to an apparatus for making copies using at least one The support on which the original is exposed. The development in this support can, for example triggered by the action of heat.

In particular, the invention relates to a device for making copies from which a positive and a negative support can be used in which a per se known exposure device, developing device and drying device are arranged.

In known devices it has been necessary the original lying on top of one another with negative paper to be introduced into the device. This process required considerable dexterity from the Person operating the device, because the negative paper will not be exposed to any light during this process shall be. Furthermore, it is with the known devices

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gene known that the original and the negative support be transported out of the device together and the negative ^ ScEichtträger together with a positive substrate again in two interconnects leading to a developing device must be introduced aligned «After the development, the positive and negative layers are brought out of the device pressed together and must be separated by hand. This process is also disadvantageous and increases the production time for copies because ".; the subsequent drying process takes place in the air. Where is; further to take into account that residues of the developer liquid adhering to the papers do not come with clothes or Like. May come into contact because there is a risk of damage to the clothing. Therefore requires the separation of the positive and negative support and the actual destruction or filing Pay attention to the negative carrier when it is still wet, which reduces the production time for a copy .. "

The invention is based on the object of the known To improve devices and to simplify the operation significantly, while at the same time reducing the production time for Copies is shortened. This object is achieved according to the invention in that a stack of layer carriers, preferably from negative substrates, light-tight

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shielded, on or in the housing of the device -and a ~ in-depending on the introduction of the template Triggerable / feed device for a layer carrier from the stack to the guide path of the original are arranged.

According to a preferred embodiment, when using of positive and negative layers too Positive layer carrier in a stack on or in the housing of the device on a transport device arranged adjacent for a sheet of the stack. The transport device is dependent on the passage of the negative substrate or the introduction of the Template can be switched on or unlocked.

According to a preferred embodiment of the invention is the stack of negative substrates on the bottom of the Housing arranged for example in a removable cassette. A pair of transport rollers from the same direction on -... driven and between them a gap of strength of the backing-free rollers is on the one facing the entry lane for the template - .. Stacking edge. The arrangement is advantageous such that the top sheet of the stack is removed. In. this Context is an additional transport element, preferably in the form of a driven one with a non-slip surface. acting on the substrate to be peeled off arranged by this roller mounted adjustable in height is and either by Eeder pressure or weight effect

constantly acts on the substrate to be peeled off. According to a special design, the stack is located on a height-adjustable table. which is raised by means of spring pressure in such a way that ■> the top layer carrier "to. the. transport roller, which also acts as a stop" for this. Height adjustment serves, is pressed so that the top layer support each in front of the gap between the pair of transport rollers lies,.

The stack is preferably for the positive layer carrier on the top of the device housing on a stack holder in front of a pair of transport rollers made up of two, equal- '.-' ■ sensibly driven and between them a gap corresponding to the thickness of the positive layer carrier leaving free rollers in conjunction with an additional one Transport element on the layer carrier to be peeled off arranged that this when switched on or unlocked of the transport roller pair is transported into the device. For example, the stack holder is vertical arranged so that the support in a vertical Lie level and are pressed against the holder by a pressing device using, for example, a spring. The invention relates to an oblique arrangement of the stack holder, in which the layer supports due to their own weight. the stacking holder rest. ■■■ '"'. ■.

According to the invention, stop elements are in the

guide track for the template and the feed track for the negative layer carrier is provided in a known developing device, the stops with a release element for the transport devices for the negative and positive layer carriers in connection stand. The stop elements can operate a switch via which the drive for the transport rollers and the additional transport element assigned to them, for example an additional roller is switched on. According to a preferred embodiment, the transport rollers are constantly driven and the stops with a mechanical locking bracket in front of the gap between the pair of transport rollers tied together.

When using a device with an exposure, development and Drying device are according to the. Invention the separators for. the template.and the negative substrate behind the exposure device and for the negative substrate and positive substrate behind the drying device as a pair of rollers consisting of two rollers driven in the same direction educated. The drive of all rollers of the transport and Trerin devices as well as of feed or squeeze rollers takes place from a drive motor. _

Further advantages and features of the invention can be found in FIG following description of an embodiment shown in the drawing. In the drawing show:

Pig. 1 the side view of a device according to the invention in section,,. ^:

Sig. 2 -ein-modified-individual representation .aus Fig. 1 in side view in section.

In the drawings the device is shown schematically, but not for the device training according to the invention identifying device parts such. B. the drive motor, Ventilation devices and the like as well as drive over-: ' support means between the individually driven parts as well as their storage or .. a special frame design are not shown for this. - ■ _ '

The ^{device shown in FIG. 4} has a housing part 1 which contains an exposure device 2 and a developing device 3. The exposure device 2 consists of a rotatable exposure drum in which a light source is arranged, the area of which is affected can be regulated by a movable diaphragm (not shown) and which is shielded from the underside of the device. In the part of its circumference in which the light source can be effective, the drum is wrapped by an endless belt 4, which is guided over three rollers "5, -65, 7. The rollers. 5-7 are, for example, in the direction indicated by the arrow indicated direction. 'The drive of the drum can be caused by the frictional effect ~ between the belt and the drum; .werdem ^:. .-.

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The developing device 3 orders from a liquid container 15 and guide elements: 12, 13, 14, the Guiding tracks for the positive support and the Negative substrate through the liquid to determine a pair of nip rollers 8, 9.

Located in the front of the desk-like device an insertion slot formed by the guide surfaces 10, 11 for the template. The guide surfaces 10, run to the exposure device, namely the section between the roller 5 and <3. the imaging drum. The guide surfaces are curved in such a way that the original passing through between the belt 4 and the drum to be led. In particular, the lower guide surface 10 is at the end facing the exposure device 2 bent in such a way that it is approximately in the middle in front of itself tapering gap between the one running around the roller 5 Belt 4 · and the imaging drum ends.

In the lower part of the housing 1 there is a cassette 16, which contains a stack of 17 negative support. The negative substrates are arranged so that their Layer down, is swept. The cassette is on its end facing the guide surface 1CL. is open and with one Transport device provided to each one To transport the support from the cassette. This transport device can also be outside the cassette or be arranged in a recess in the cassette wall. It is possible to use the negative layer carrier simply arranged on the bottom of the housing

Insert guide funds *;

The transport device has three rollers 18, 19 $ 20 on, in the direction of the arrows, ^ so are driven in the same direction. ■ The transport device is used to pull the top layer carrier off the Stack 1? · The top layer carrier is turned into a gap between the rollers by the roller or roller 20 18, 19 pushed. The width of this gap corresponds to the thickness of a layer carrier. Unless this If there is no gap, the top layer support can pass through the Run through the gap. He will then go through the encircling Roller 19, which has a smooth steel surface, for example, advanced. The lower roller

18 advantageously has a rubber surface and prevents by their arrangement that underneath the top layer support located substrate in the gap between the rollers 18, 19 can run in *

The roller or roller 23L is advantageously adjustable in height stored and lies either in effect, in their weight on the top substrate of the stack 17 or pressed onto this substrate by elastic means, for example a spring. The drive of the roller or Roller 20 can depend on the drive of the roller

19 take place, in which case the guide slot is then expedient for the height adjustment of the roller or roller 20 runs concentrically to the roller 19.

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The stack 17 is advantageously located on a. ; Table or "a plate, which by means of springs upwards is pressed so that the top. Layer carrier in each case '■ _ the correct position to that of the rollers or rollers 18-20 existing "transport device occupies.

The gap between the rollers 18, 19 can be locked by a locking bracket 21. This locking bracket is located on a two-armed lever 22, which is around a. Pivot point 23 between the delimited by the guide surface 10 The guideway and the transport device can be rotated The end not carrying the locking bracket 21 protrudes into the Guide track for the template in and forms a stop element in this. The arrangement is such that this Stop when a layer support strikes so, pivoted is that the locking bracket 21 from the: gap between the rollers 18, 19 is moved out.

For example, the rollers 18, 19 have notches ah their extent provided in which the. Lock bracket moved. Several locking brackets and one-ons are advantageous. - ·. Sections arranged distributed over the length of the rollers.

An is used to forward the original and negative substrate coming from the exposure device. Guide surface 24, which become 'a pair of separating rollers 25, 26 leads. These separating rollers are in the same direction in such a way ._, " drove that the lower separating roller over the guide

surface 24- running negative substrate in moves its direction of advance, while the overhead roller 25 removes the upper template from the ^ ■ - "" - ■ - " Pushes back the gap between the separating rollers 25, 26, The width of the gap corresponds to the thickness "__. ■ ■

of the negative substrate. ..:. ; "

The jacket of the separating roller 25 advantageously has a rough surface, so that adhesion of the leading tape of the template brought up to the roller 25 occurs., and this edge in the direction of rotation of the roller 25, so upstairs, lifted off. The original, which is further advanced by the drive in the exposure device 2, runs into a; to the top the housing leading "output path 27 · ■" - "" - ■ - ■

The negative visual carrier, on the other hand, is moved with the layer upwards into the guideway between the guide elements 13? 14 transported. ~ -

A stop element is located in this guide track 28j formed by one arm of a two-armed lever is, whose other "Arm_ carries a locking bracket 29, the the gap of a transport roller or roller pair pD, 31 can close. The two-armed lever 28 is over a pivot point 32 pivotable. The two-armed lever can for example consist of two brackets which run on both sides of the roller or roller pair 30, 31; : and the locking bracket 29 above this pair of rollers *

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or several parallel lever arms distributed over the length of rollers 30, 31 are provided, which can extend through circumferential incisions, for example in roller JO, and can move in these circumferential incisions. . - - ■ _:

The arrangement of the stop elements 28 is such that the double-armed levers are pivoted as a result of the impact of a negative layer carrier when entering the developing device 3 in the sense that the locking bracket ". 29 <3. releases the gap between the pair of transport rollers 3O ₅ 31, see above that a positive layer carrier transported into this gap is advanced into the guide track formed by the guide elements 12, 13.

The positive layer carriers are in a stack 33 i the illustrated embodiment held in a vertical position, with the layer directed to the left is. For example, a support 34-, which leads to a Transport device is aligned, as well as a stock - ~ 35 and a pressure plate 36 provided, which by resilient Means is applied to the stack in each case at which. - In stock 34- to hold. In the exemplary embodiment shown, the support is in a vertical plane. orderly. The invention relates to embodiments: in where the edition T is arranged at an angle.

The transport device assigned to this support exists from a pair of rollers 37 »38, the rollers of which are identical

are sensibly driven and there is a gap between them corresponding to the thickness of a positive support is provided. The one on the stack side - one continuous The layer support lying roller 37 advantageously has a Rubber or similar material existing surface and revolves in a direction that it tends to push back approaching substrates to the stack, while the roller 38 advantageously has a smooth surface a feed of an incoming layer carrier away from the stack and into the transport roller pair 50, 31 causes. An additional transport roller or roller 39 provides the advance of the one resting on the support 34- Layer carrier to the transport roller pair 37 »38 safe» The roller or roller 39 is in the direction of the drawn Arrow driven.

At the end of the. Developing device 3 - "" -. ! extending guideway look is the squeeze rolls 8, 9 j the purpose of performing image transmission coming from the developing device ^substrate: · compresses. Behind the pair of squeeze rollers 8, 9 there is a guide surface 40 which directs the adhering layer carriers into a drying device 4-1. This drying device 4-1 consists of a circulating heating element. cylinder 4-2, whose jacket is made of copper, for example. consists. Heating elements are arranged in this heating cylinder. The layer supports are guided on this heating drum by an endless belt 4-3, which runs over driven rollers 4-4-, 45, 4-6. The direction of rotation of the rollers 4-4- - 4-6 is through

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the drawn arrows are indicated * as well as one of reels-5 -7 of the exposure device, is a ■ - ■ - "". of the rollers 44 - 46 displaceable on resilient Means stored in order to produce a belt tension.

The running out from the drying device 41 substrate to be a pair of separation rollers 4-7, 4-8 ^\: transported, a gap on the strength DES negative carrier layer is present between the rollers. The rollers 47, 48 are the same direction, ie to: the direction of the arrows driven "The direction of rotation of the lower roller 4-8 is directed such that the facing the gap circumferential surface of the in the ^slit: incoming negative layer wearer its previous Yorschubrichtung by the Gap between the rollers and 'in an insertion slot 49 of a container 50 trahspor- .. tiert. The negative substrate is in this container. filed. The positive-vision wearer lying on top when leaving the drying device ". 41 comes with its leading edge to the roller 47 rotating counter to the feed direction and is pushed back The positive layer carrier is lifted off the negative layer carrier and, via the roller 47, onto a table for 1 on the top of the container 50

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transported and placed on this table,

According to an illustration shown in FIG The detail of the door direction according to FIG. 1 relates to the Invention an embodiment by which the Separation of the coming out of the drying device 41 positive and negative layers sticking together are made easier «..- Between the; Drying device 4-1 and the pair of separating rollers 4-7, '4-8 is a Another pair of rollers 52, 53 are arranged, the rollers of which are driven in the direction of the arrows shown will. It can be seen that the rollers have different diameters. The roller 52 has larger ones Diameter than the roller 53 * When both rollers are driven the peripheral speed is therefore at the same speed of roller 52 is larger. The rollers 52, have one made of sanded rubber, for example. . -. "existing jacket. The gap between the rollers 52, 53 is a little narrower than the strength of the negative sight wearer and positive support together. The rollers therefore act with a little Pressure on this substrate, so that frictional forces on 7 the: -Layer: are transferred ,. The frictional forces run in the same direction in the feed direction, but the one from roller 52 onto the negative substrate The force transmitted is greater than that transmitted by the roller 53 to the positive substrate Force. These forces act in relative forces between the layers and lead to a

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Separation of the adhering layers, so that the lifting of the positive layer carrier by the separating roller-47-is facilitated. .

The difference in peripheral speed between the rollers 52 and 53 is relatively small. the The diameter of the rollers are dimensioned in terms of their speeds so that the smooth passage of the Support by the separation device41 does not is affected. In a special embodiment can also be the distance between the drying. device 41 and the pair of rollers 52, 53 essentially correspond to the length of a layer support. A similar effect can be obtained using two Rolls with the same: diameter; achieve that with -different -speeds of rotation are driven.

In the illustrated embodiment, the ^;

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Rollers of the transport devices (18, 19, 20, 37? (59) constantly driven. There is also the possibility of to provide separate drives for these transport devices and only depending on one Actuation of the in the feed path for the original and the feed path of the negative substrate - in the Turn on developing device protruding stops for a short time. There is also the possibility here the transport device 37 - 39 for the _-

Positive support also depending on one Stop in the feed path for the template over, one To operate the time control. :

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With constant drive of all rollers, all rotating parts are driven by the same drive device, for example a motor, via corresponding drive transmission means of gears ^ pulleys, chains; ~ or the like. Driven. ■■ "" "" ■■ -

The device works as follows: According to the arrow 52, an original is inserted into the device. Here, the stop formed by the double-armed lever 22 is actuated so that the gap between the transport rollers 18, 19 is cleared. The! Transport roller or roller 20 pushes the uppermost negative substrate into the gap between the transport rollers 18, "19" whereby further substrate adhering to the underside of this substrate is pushed back by the corresponding rotating roller 18. The uppermost substrate runs through the roller gap and becomes pushed through the roller 19 to the end of the guide surface 10, which ^{ends approximately in the middle of the gap between the roller 5 U1} id of the exposure drum. On the right side of this guide surface 10, the negative substrate slides towards the exposure device and lays. look at the template inserted on the — left-hand side "of the guide surface 10. The original and the negative substrate - are therefore transported together into the exposure device and guided through it by the driven belt 4 -. Here the exposure takes place in a known manner »- -.- ■

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From the exposure device 2 coming-cooperation -, _ adhesive template, and negative substrate are 'in-def ~ - described manner separated at the separation roller pair 2% 26, wherein the template in the direction of arrow 53 to the ^top: from the Device is transported. .

The negative layer carrier running through the pair of separating rollers 25, 26 actuates the stop 46 and thereby releases the entry of a positive layer carrier into the transport roller pair 30, 31. This positive layer carrier is up to this point in time by the transport device consisting of the roller group 37-39. The stand-by position has been held on the locking bracket 29, the rollers 38, 39 running as a result of slight pressure on the side of the positive layer carrier. Further positive film carriers transported with it from the stack 33 have been held back by the roller 37 ^from passing through the gap between the rollers 37, 38. After pivoting the locking bracket 29, a positive layer carrier runs through the developing device 3 together with the negative layer carrier - Both layers are brought together in the pair of nip rollers 8, 9, dried in the manner described, separated and deposited separately, with the positive layer being Layer support with the finished copy is exposed on a table.

The container 50 and table 51 are expediently made in one piece with the housing 1 in both device parts

, the invention also relates to a cover of the heating device 41 by means of a housing surface. ".

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Claims (1)

Claims 1. Apparatus for making copies using at least one support on which the original is exposed, identified by arranging a stack (17) of this layer carrier on or in the light-tightly shielded Device (1) and a feed that can be triggered depending on the introduction of the template Layer carrier in the guideway of the template, 2. Device for making copies in particular : according to claim 1 using a positive support, to which the image is transferred from the negative support, marked by arranging the positive layer carriers in a stack (53) on or in the housing (1) a transport device temporarily blocking the feed for a layer support of the Stack, the transport device depending on the passage of the negative substrate or the introduction of the template can be switched on or unlocked. - 1 - 3. Apparatus according to claim 1 and 2, characterized by arranging a stack (17) of negative negative layers on dem.3oden of the housing (1), for example in a removable cassette (16) and a pair of transport rollers (18, 19) on which the Guide track (10, 11) for the stack edge facing the template. 4. Apparatus according to claim 3> characterized in that that the stack (17) on a height-adjustable and; is arranged by springs pushed up table. - - 5 »Device according to claim 3 and 4, characterized by an additional transport element, preferably in the form of a roller (20) on the uppermost layer carrier to be screened, this transport element being mounted, for example, displaceable in a substantially vertical direction and with a spring or weight effect on the uppermost layer carrier of the - '■ - stack (17) acts. - -. ■. '-_ 6. Apparatus according to claim Λ - 3 _} characterized by the arrangement of a stack (33) positive-Schichtträger on the top of the housing (1) on a stack holder (34) on the transport roller pair (37j3 &), which is a feed roller (39) is arranged. 7. Apparatus according to claim 3 and 6, characterized shows that the pair of transport rollers consists of two rollers driven in the same direction, of which the roller in front of the stack rotates in such a way that the one gap between the rollers ; facing circumferential section in the direction of the stack, furthermore the gap between the rollers corresponds to the thickness of the layer carriers stored in the stack. ■■■ "-_ 8 * Device according to claim 6, characterized in that the stack holder (34-) is arranged vertically and a pressure plate (36) is provided which holds the stack (33) in contact with the stack holder (34-). 9. The device according to claim 6, characterized by: the inclined arrangement of the stack holder (34) * 10. Apparatus according to claim 1-9> characterized by stop elements (22, 28) in the infeed track for the Original and the feed path for the negative substrate in a known developing device, the stop elements each with one Release element (22, 29) in the transport device (18, 19, 37, 38) for feeding in the negative layer carrier and the positive support. . -. ". - 11. The device according to claim 10, characterized in that that the trip element are switches in circuits to drive the transport devices. - 3 ■ - 12.'Vorrichtung according to claim 10, characterized in - shows that the stop elements (22, 28) with ___ " "Locking brackets (21, 29) are mechanically connected, which are in a locking position in the feed tracks for the negative substrate and the positive substrate are pivotable, -. ".". '".. 1Y. Device according to claim 12, characterized by the formation of the stop elements (22, 28) and the associated locking bracket (21, 29) as a double-armed Lever. 14. Device according to claim 1-13 with an exposure, development and drying device, characterized by the execution of .of separating devices. ■ ·; ■, '_ for the - pre-storage'and;.: (2) and for the ^: negative substrate and positive substrate behind the drying device (41) each consisting of two rollers (25, 26, _; . 47, 48) driven in the same direction and drive of all rollers of the transport and separating devices as well as feed or Pinch rollers (8, 9) by a drive motor, for example by means of drive transmission means known per se. 15 »Device according to claim 14, characterized by the arrangement of a pair of rollers (52, 53) between the drying device (41) and the pair of separating rollers (47, 48), the rollers (52, 53) being different .Have circumferential speeds, and between the rollers (52, 53) there is a gap whose Strength slightly less than that of the positive and Negative support is together. 16, device according to claim 15j, characterized in that that the rollers (52, 53) have different diameters and rotate at the same speed. 17 »Device according to claim 15 and 16, characterized in that that the roller (52) resting on the negative substrate is at a higher peripheral speed circulates *. . - ■■ 18.Vorrichtung according to claim 15-17? characterized, that the rollers (52, 53) have a rubber surface. 19 · Device according to claim 14, characterized by the Arrangement of the exposure device (2) and development device (3) above the negative substrate stack (17) · "'■■" ■ 20. Device according to claim 14 and 19? marked by means of a container (50), which may be made in one piece with the housing (1), for separate storage of the negative support as well as for the presentation of the positive support with the copy » - 5 -