JPH04500535A - Method and apparatus for processing flexible flat material pieces - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Method and apparatus for processing a flexible flat piece of material The present invention provides a method and apparatus for processing a flexible flat piece of material. , a method for processing hides, fur, and other similar materials, in which flat pieces of material are tenaciously cut into a working path. A type of OVC that passes through and undergoes a plurality of successive work steps is also The invention also relates to an apparatus for carrying out this method.

Flat material pieces such as leather are processed continuously to reduce the area for the purpose of rolling or rolling. Often enlarged.

Therefore, the spreading tool used in each machining station is, for example, a spiral grout. A wide variety of tools are known, such as those in the form of rollers with rolls. material Continuous processing of the pieces is in this case carried out by a continuously rotating conveyor belt VC without contact. This is done by passing through the machining station. The flat piece of material is A tough support stage is installed in front of the processing station and runs above the chisel table. tff6 on the conveyor belt and introduced into the processing station. This continuous process During the logic, the Zhao point is the following O point: First, because the conveyor belt moves, it is difficult to spread the material and eliminate wrinkles. It also helps guide the leading edge of the material, which typically has an irregular contour, into the processing station. It's also very difficult. This also limits the overall working speed of the equipment. . Jl! In addition, due to the continuous processing of material pieces, the scope of practical processing methods is severely limited. be done. For example, by distributing the tensile force over the entire circumference of a piece of material, Known methods of rolling out material cannot be applied in the case of continuous processing and still produce pieces of material. must be manually loaded into the spreading device.

The object of the invention is therefore to process flexible flat pieces of material, in particular without the need for a spreading process. The @1 type method and equipment mentioned at the beginning, which involves drying and heat treatment, is also a continuous treatment method. Total working speeds of at least the same degree are possible, and flat pieces of material can be easily and easily l! The objective is to provide a type of product that can be loaded into and expanded.

According to the invention, this problem is solved in terms of the method in claims 11 to 113. The common idea of these solution variations is that the conveyance ratio is solved by the characteristics described in Continuous machining of a piece of material by a time cycle that occurs from time to time between In particular, in the case of leather manufacturing and processing, the construction method is applied to the work of spreading, drying, and heating. δ can be achieved by applying it to a certain extent. If the material is extremely flexible or delicate, wrinkle-free However, it is difficult to spread the material out and send it to the original work station. child The problem is that the contours of the flat pieces of material are irregular, and the dimensions of the pieces of material are often too large. In particular, the process that requires high working speed becomes even more difficult. These nine problems The problems of the present invention arising from It is best solved for applicable business cases.

An elaborate device for solving the OlIM of the present invention is defined in claims 8 to 11, and It has the characteristics wt described in @25 to 31. Changes in these solutions The shape is also a common problem, and flat material pieces with high flexibility, especially leather @ CV processing It is based on the basic concept of a cycle Dalian AI & physical equipment tailored to the needs of the people. billing In the case of plural variations described in ranges 11 to 24, ! I! Common principles for problem solving is used as a support for a flat piece of flexible material. A holding member is provided, which follows the working path during the conveying movement, but can be easily Unlike a typical rotating conveyor belt, this belt only extends over a portion of the working path. That is what we are doing. This will ensure that in most cases, as mentioned above, the material pieces will This takes into account the special circumstances of having a large area. that kind of material One-cycle machining of the pieces requires correspondingly large cross-section support elements. child A large area, generally very thin support member that is itself flexible, such as It is better to fix it within the support plane and transport it without wrinkles, rather than shifting. A special problem arises. These problems are solved by means having the characteristics of the present invention. It will be done. In this connection, according to the variation described in claim 1!30, p, flexibility Advantageously, a flat piece of material, despite its irregular and different contours, can be Accurate alignment is possible.

The invention will now be explained in connection with the embodiments shown schematically on page 1.

The wc1 diagram shows the charging, spreading, and spreading of hides during leather production in time-portion format. Cyclic continuous processing including each process of line! ! This shows the general information. 'Time axis shows the order of work cycles and transport cycles. Each material being processed To show the state, in relation to the time axis, the expansion of the area of the passing material piece is equal to 5PL. Equal humidity? The transition of C is described. The process includes the following cycles: 2. Charging and spreading operation cycle at the 3rd rack stake TA1. 2nd work station In the transport cycle TT1, which sends the expanded skin to the second work station, Work cycle TA2 of heating, steam treatment, and spreading of the skin, the area is expanded and the skin is Transfer cycle TT2 to send the data to the third work station, Combination work cycle of heating, drying, and spreading TA, 5, Processed leather? send out Transfer cycle TT4゜ In cycle TAI, O expansion is performed without any vital movement.

As a result, it is rolled out sufficiently flat and has no wrinkles, which means that it can be used for the next work. It is possible to quickly and labor-savingly create an initial account of IIk in business. Psych In other words, after significant acceleration and deceleration in TTI, time-saving transportation After the movement, the material piece with initial surface IR expansion FLO and initial moisture content FCQ'i is The second work cycle TAZ is reached. Here, we will optimize the spreading process to In order to homogenize and enlarge the area, 1xi heat, which is known per se and is not shown in detail, is used. Alongside this, a steam treatment is carried out to increase the average moisture content f from FCO to FCl, etc. On the other hand, the area expansion is increased from PLO to PLl. Faster with cycle TT2 After rapid conveyance, a combination of e-drying and spreading is performed in the third work cycle, and the process is repeated. and heated. The main purpose of this work process is to adjust the final moisture content FC20 (total dry The drying effect is that the moisture content is reduced by the sign dTC), and during drying, Due to the unique properties of leather, significant yields generally occur. This yield is Even if this is not the case, it can be offset by the previously obtained area expansion. 1+1, this Since the shrinkage is extended by the spreading process in work cycle TA5, an additional process is required. Without consuming time, the final area extension FL2 is extremely small compared to FLI. (The net area expansion amount is indicated by the symbol dFL-), spreading and drying In the case of processing, and even if the processing involves heating, it is not possible to process the stopped material. The big difference is that it is. In particular, highly effective methods using the latest technology are available. The machining efficiency per set area that can be machined simultaneously for all material surfaces is high. In particular, in the case of heating, a flat piece of material is heated. meeting irradiation There are many advantages that can be achieved.

The apparatus for continuous processing shown schematically in FIG. Arrange according to 7t1f! It has a sending device Tl. This #feeding device is flat The material pieces FL are transferred from charging station ST1 to IiI order along working paths A and B. The O work station, i.e. the 0 work path AB that transports the spreader, is connected to the work cycle. Therefore, it is formed by the rotation of the rotating conveyor belt THE. bell The upper side of the plate serves as a support surface for the flat piece of material.

An important element of each work station is the bell-shaped lid DGL. This lid DGL covers the area of the flat piece of material and has a frictional connection with the flat piece of material on the underside. It has a diaphragm M that can be elastically expanded in the radial direction to produce a suppressive coupling. There is. The lid DGL is raised to the rest position according to arrow A when each flat piece of material FL is fed. It can be raised or lowered into the working position. In the working position, the die Yapuram M contacts the flat piece of material. Edge seal that whitens the machining area without any gaps. Through the lowered diaphragm, the flat member is sealed in air with the support surface AP. Forms a piece receiving space.

The CO space is connected to suction devices Sv1 and sV2. Arrow B1 or Suction is performed according to C, and negative pressure is generated in the space, which causes the diaphragm to The beam ν is uniformly pressed into the material, creating an effective paddle. Edge of diaphragm M The action is distributed over the diaphragm and acts radially outward in the plane of the diaphragm. Through the expansion cylinder, the diaphragm surface is expanded by a predetermined dimension, and then, The lower side of the diaphragm has frictional or adhesive force, and the support surface AF is made of a slippery material. The flat piece of material pressed between the The area is stretched by receiving T. At the same time, the flat material pieces assist the spreading process. Conveyor bell with high thermal conductivity) TRB (all from below through D material) It is heated by heating devices H2 distributed over the area.

As explained above in the last paragraph, the leather spreading device is based on the conventional technology. As such, no further explanation is necessary for those skilled in the art.

A special feature of the invention is that, in principle, the flatness can be reduced independently of the given conditions of continuous processing. This feature can be advantageously applied when spreading a piece of material, as shown in Figure 2. Second, the flat material piece is subjected to steam treatment during or before spreading. This 0fF- For this purpose, a steam supply device, for example of the type of steam generator, is provided. This device has a lid When the DGL is lowered, it is activated and removes the flat piece of material between the diaphragm and the support surface. Fill the receiving space with steam according to arrow B2. Steam is a flat piece of material Li at the place! Shrink and moisturize accordingly.

It goes without saying that in connection with the invention, instead of individual pieces of material having a large area O, in principle As a wave force loop, multiple small pieces of material are grouped together and processed continuously. be able to. In that case, place it appropriately within the working area of the 1-tight O station. so that one work process is performed at the same time.

In the case of the continuous processing apparatus according to the invention shown in FIG. also partially dimensionally stable, e.g. in the form of a grate or a frame. It has support members TO1, TO2 for flat, flat pieces of material FL. these The support member includes a loading station ST1 and at least one downstream loading station ST1. - can be moved in opposite directions between the two and the John ST2, and are also continuous back and forth. They are arranged so that they can be sent alternately to processing stations ST1 and ST2.

FIG. 3 also shows auxiliary equipment for processing leather, fur, etc. This auxiliary equipment The equipment is particularly suitable for continuous processing equipment, but also for other types of processing equipment. It can also be used for In the supporting surface AF of the charging or spreading station, the flat material A boundary mark MK extending along a straight edge is provided for aligning the pieces 5c. .

Next, I will list some other variations, the first being ``support''. Surface area of 4 members Also, if the support member is transparent, the bone is placed in the TKO area of the support structure below the support member. The light emitting elements LE can be arranged in a linear manner.

This variant is particularly useful in the case of relatively thin, e.g. foil-like support elements. can also be applied. The variation of shoe 2 is independent of the state of the support surface and the underlying structure. It can be used for. O, the projection device P located above the support surface AFL R is provided with a border made of light emitting elements to generate a mark. C O'## Auxiliary equipment significantly improves overall work efficiency by simplifying the charging process. can be increased.

FIG. 4 (m-plane view) and FIG. 5 (top view) show the continuous processing of the present invention with the following assignments. The device is shown. That is, the transport device TR3 carries at least one A planar support member TO3, also partially flexidel, extending along the working path AB. The drive device ATR and the support member are operatively connected to each other. ing. , and also supporting and guiding surfaces extending at least partially along the working path. Equipped with TFF. When the support member moves along the working path, the supporting member Supported by FF. A connection/guide tool KF is provided to connect the support member and the drive device. It is being This connection/guidance tool KF has a support member whose surface has a width V with respect to the working path. To ensure a predetermined orientation of a support member while maintaining the same orientation. Especially in the case of example 0 shown in the figure, A plurality of supports arranged one behind the other in the continuous processing direction and operatively connected to the transport device ATR. Material TO3 is provided. In this case, each of the support members is connected to the drive device. has been done. Furthermore, at each support member, there are longitudinal and (or)t! Tensioning means 3pv1 acting in the direction are provided. These hands In the example shown, the stage 5PV1 is provided with a frictionally connected bearing at the support and guide surface. It is constructed as an open-type tensioning means. cositv tension means is tension means technology It means to advance. Because in many cases, this 51! By means of @C ) The use of wide flexible support members is now possible for the first time without wrinkles. This is because Similarly, the important point in preventing wrinkles is continuous processing. A flexible support member configured to restrict the direction of the closed conveyor belt This is a point that is used as a substitute for

The drive ATR has at least one, in particular two guide members in the illustrated example. The driving member AO' (-) has an elongated flexidel-like member. or partially linked configuration, extending along the working path, e.g. It has the form of a belt with a lane or I11. This chain or belt , is operatively connected to the support member TO3. In addition, the track bar that is passed horizontally on the work path A base TRV is provided, which connects the driving member AO on the one hand and the support part on the other hand. combined with wood. This ensures the reliability of the support fi4 member that provides flexibility. In particular, reliable straight-line travel is possible, as well as a solid drive connection.

Factor 4 and Figure 5 In most cases, at least one important feature is A suction device ASV is also placed in the area of the station. This suction device ft ASV ? i. The reduction in the area of flexible support members provided at the work station; 0 forces arranged over at least one part and distributing action to one side of that part The point to consider is that this suction device ASV is a coupled processing device that operates in a cyclical manner. They also have flat, flexible, closed conveyor belts. It can be used effectively. In other words, this liquid pulling device A19V supports and guides Flexibility is achieved by uniformly distributing the action of the support material to the surface and suppressing strain. This helps ensure that the flexible support material remains flat.

In particular, in the illustrated example, the suction device ASV is provided with a negative pressure container U arranged in the support and guide surface. A BH is provided, in which fine suction holes are closely distributed. This is it This prevents particularly thin support materials from being sucked into the suction holes and being damaged.

It has proven particularly advantageous to reduce the diameter of the suction hole to the flexible support material of the conveyor bell (conveyor bell). This is the case when the thickness is 10 times or less. In some O-A applications, the suction hole is connected to the negative pressure container. Advantageously, it is formed by pores in the porous wall.

An advantageous configuration of this embodiment is that the negative pressure vessel UBH and the heating device Hz are of a leather construction. This heating device H2 is connected to the support 111f for the material to be processed. f　It is to be operationally connected to the AFL by heat conduction or heat N radiation. Ru.

Similarly, in the case of the embodiment No. 6 (plan view), the flexible support door member The TO5 are provided in succession in the front and rear, and the supporting members TO3 are respectively provided. , extending only across the comparative small section of the entire length of the working path, and supporting and guiding surfaces TFF of both 1 fl. A chain or a toothed belt extending in the lc magnetic feeding direction, that is, a driving member AO, and a feeding member AO. Direction (arrow D) K action connection. This working connection also includes each one The traverse is created by a berth TRV, and both ends of the traverse have drive members AOO and one in each case and also its intermediate part connected to the front edge VK of the associated support element. Ru. at least one support member O rear edge RK and the next support member front edge VKC) However, a tension means SPV 2 is acting between the traverse TRV and the traverse TRV. child The action of is parallel to the transport direction in the middle region ME of the support member, and this On the other hand, in both @0 negative area SRB, it is diagonal, and moreover, as it approaches the edge Therefore, it has a large inclination with respect to the transport direction. The action of force is divided into narrow intervals. The tensioning means, which may be distributed or uniformly distributed, may be, for example, an elastic foil. It can also be realized in the form of a belt piece or a belt piece. This makes the edges particularly In the area, uniform tension was obtained throughout the entire length of the door member, and wrinkles were removed.

In particular, it has a large area, is thin, very flexible, wrinkles easily, and can be used in some cases. In the case of support members whose planes may stretch elastically, the According to experience, continuous processing is a major challenge. However, the diagonal direction mentioned above In addition to providing variable tension in the and/or directions to the support member compensating edge; Instead of applying lateral tension to the lll1 edge of the support member, This results in remarkable results. Regarding O, @61A has 5p v3. This means may be provided, for example, at relatively large intervals. This can be realized by distributing tension springs to the sections. These tension springs , these belts can thus be configured as elastic belts at very low expense. It can also be easily secured to the foil material of the support member.

It goes without saying that many variations are conceivable within the scope of the inventive concept.

In some cases, a number of traverses 1ρ less than the number of supporting members may be made with the driving members on both sides. combined, so that the total driving force is reduced to fewer traverses or only one traverse. It is also possible to directly transmit the information to the support member. In that case, the remaining support The member, for example, connects its leading edge to the trailing edge of the preceding support member. This 4 In this case, the wrinkles can be removed by pulling the support member at the compensated edge. All right In the direction of straw and weirs, we also use back traverses not only in diagonal or lateral directions. By doing so, it is possible to remove wrinkles. This support traverse is connected to the drive member. traverses do not need to be used; in some cases, traverses may not be used at all You can also do it. In that case, the four guide members or drive members and the corner or Place an appropriate tension member between the side arm and the tension member, and make the tension direction sufficiently oblique. In particular, these elements can also transmit all or part of the driving force. Similarly, words It goes without saying that the drive/guidance functions are separate parts or parts. You can also do it. For example, initially the O tension member acts substantially in the conveying direction and the final guide The rails are connected to the supporting member grade by loose roller members or sliding members. It can be done. In any case, the concept of the drive/guide member 1 used above should be understood in this sense.

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Claims (33)

[Claims] 1. A method for processing flexible flat pieces of material, especially leather, leather, fur, etc. A method in which a piece of flat material passes back and forth through a working path and undergoes multiple successive working processes. In products, multiple flat materials are processed in successive work cycles and conveyance cycles. During the work cycle, the flat piece of material passes through the work path at a speed of At a feed rate lower than A number of successive working steps are combined with at least one loading or expanding step. A flexible flat material characterized by comprising at least one stretching step followed by rolling. How to process pieces. 2. A method for processing flexible flat material pieces, especially leather, leather, fur, etc., which involves processing multiple flat material pieces. A type in which the pieces pass back and forth through a working path and undergo multiple consecutive work steps back and forth. , in particular a method according to claim 1, in which the flat pieces of material are produced in successive working cycles. The machine passes through a work path through a transport cycle and a conveyance cycle, and multiple work processes that occur in succession back and forth. , including at least one charging or expanding step, during which the flat material pieces are At a feed rate lower than the conveying speed, advantageously at least almost at a standstill. Additionally, the flat pieces of material may be subjected to a drying process during the conveying cycle and/or work cycle. A method of processing a flexible flat piece of material, which is characterized by undergoing a process. 3. A method for processing flexible flat pieces of material, especially leather, leather, fur, etc., which involves multiple flat parts. A type in which the pieces pass back and forth through a working path and undergo multiple consecutive work steps back and forth. , in particular the processing method according to claim 1 or 2, wherein the flat piece of material comprises at least one characterized by being subjected to heat treatment during the conveyance cycle and/or work cycle A method for processing flexible flat pieces of material. 4. The flat piece of material undergoes at least one conveying cycle and/or working cycle. Any one of claims 1 to 3, characterized in that the product is subjected to microwave treatment during Processing method described in section. 5. The flat pieces of material are subjected to at least one steam treatment after the charging or spreading process. 2. The processing method according to claim 1, further comprising a tip. 6. The flat piece of material is subjected to at least one spreading and heating combination after the charging or spreading process. The processing method according to any one of claims 1 to 5, characterized by passing through a step of . 7. A flat piece of material is rolled out, heated and dried at least once after the charging or spreading process. The method according to any one of claims 1 to 6, characterized in that the method includes a combination step of Processing method. 8. a) The transport device (TR1) extending along the working path (AB) is having a capacity to receive at least two pieces of flat material arranged one behind the other; , b) have a supporting surface (AF) along the working path of greater extent than the extent of the material pieces; a charging station (ST1) and at least one processing station downstream thereof; (ST2, ST3) are arranged one after the other. A continuous processing device for carrying out the processing method according to any one of claims 1 to 7. 9. The charging station has at least one spreading, heating, or drying step. - and/or one combined spreading and heating station (ST2). Please make sure that the spreading/heating/drying combination station (ST3) is installed later. 9. The continuous processing apparatus according to claim 8. 10. A transport device (TR2) carries a plurality of support members (T01) for flat material pieces (FL). , T02), and these supporting members are planar and at least partially dimensionally stable. fixed, in particular configured in the form of a plate or frame; The support member comprises a loading station (ST1) and at least one downstream thereof. is movable in opposite directions between the processing station (ST2) and , it is possible to alternately enter the processing stations (ST1, ST2) installed in front and behind each other. 10. The continuous processing apparatus according to claim 8 or 9, wherein the continuous processing apparatus is arranged such that 11. For processing flexible flat pieces of material, especially leather, hides, fur and similar materials. In the case of a type that has a conveying device that extends along the working path, hand, a) The transport device (TR3) carries at least one planar, at least partially flat A flexible support member (T03) and a drive device ( ATR), and the drive device (ATR) and the support member are operatively connected. Toto, b) Supporting and guiding surfaces (TFF) grinding at least partially along the working path (AB) is provided, and when the support member moves along the working path, the holding and guiding being supported on a surface (TFF); c) A coupling/guiding device (KF) is provided for coupling the support member and the drive device, and this connection The tie/guide tool (KF) maintains the spread of the surface of the support member with respect to the working path, Flexible flat material, characterized in that it ensures a defined orientation of the support member Continuous processing equipment that processes pieces. 12. Multiple units arranged one behind the other in the continuous processing direction and operatively connected to the transport device (ATR) The chain according to claim 11, characterized in that a number of supporting members (T03) are provided. continuation processing equipment. 13. Each of the support members (T03) is connected to its own drive device (ATR). 13. The continuous processing apparatus according to claim 12. 14. At least one support member has longitudinal and ( or) characterized in that it is provided with laterally acting tensioning means (SPV1, 2) A continuous processing apparatus according to any one of claims 11 to 13. 15. The drive arrangement (ATR) has at least one guide and drive element (AO). This guiding/driving member (AO) has a flexible structure with an elongated shape. constructed or partially linked, extending along the working path. and is also operatively connected to at least one support member (T03). The continuous processing apparatus according to any one of claims 11 to 14, characterized in that: 16. The tensioning means comprises a guide and drive member on the one hand and at least one support on the other hand. The continuous processing device according to claim 14 or 15, characterized in that the continuous processing device is connected to a member. . 17. At least a set of clusters spaced apart from each other transversely to the continuous processing direction. Two guide and drive members (AO) are provided, these members (AO) having at least Claim 15 or claim 15, characterized in that it is operatively connected to another support member (T03). is the continuous processing apparatus described in 16. 18. a tension acting along the continuous process direction with at least one component of the force Means (SPV2) are provided, these tensioning means on the one hand at least one in operative connection with the support member and, on the other hand, with one guide and drive member (AO). The continuous processing apparatus according to any one of claims 14 to 17, characterized in that: . 19. at least one component of force substantially transverse to the continuous processing direction Acting tensioning means (SPV3) are provided, these tensioning means on the one hand acting on one support member on the other hand and on the other hand on each one of the guide and drive members (AO) The continuous processing apparatus according to claim 17 or 18, characterized in that the continuous processing apparatus is connected. 20. A traverse (TRV) is provided to cross the work route, and this traverse on the one hand is linked to both drive members (AO) and on the other hand to the support member (T 03) Any one of claims 11 to 19 characterized in that it is combined with Continuous processing equipment as described. 21. each with a traverse on the one hand and at least one support member on the other hand. 21. A continuous process according to claim 20, characterized in that combined tensioning means are provided. equipment. 22. A plurality of support members arranged one after the other are provided, and the support members between the rear end section and the front end section of the next support member, respectively acting flexibly; 22. Any one of claims 14 to 21, further comprising means for Continuous processing equipment as described in section. 23. Tensioning means acting at least partially obliquely to the direction of the conveying movement (SPV2) according to any of claims 14 to 22, characterized in that: 2. The continuous processing device according to item 1. 24. Traction tensioning means (SP) that act in a frictional manner on the supporting and guiding surfaces (TFF) V1). Continuous processing equipment as described in section. 25. Particularly suitable for processing flexible flat pieces of material, especially leather, leather, fur and the like. A continuous processing apparatus according to any one of claims 8 to 24, equipped with a conveying device. and the conveying device has at least one flexible structure extending along the working path. a support member that extends at least partially along the working path (AB); Transport equipment for types that are mounted on an extending support and guide surface (TFF) is configured to be switchable between forward and stop, and is also configured to be able to move forward and stop. is equipped with a suction device (ASV), and this suction device (ASV) is actuated during rolling and distributes the action over at least a portion of the support member to the warped surface; A continuous processing device for processing flexible flat material pieces. 26. The suction device (ASV) has at least one negative It has a pressure vessel (UBH), and this negative pressure vessel is equipped with densely minute suction holes (AOE). 26. The continuous processing apparatus according to claim 25, further comprising: ). 27. The diameter of the suction hole is less than 10 times the thickness of the flexible flat material of the conveyor belt. 27. The continuous processing apparatus according to claim 26. 28. Suction holes are formed by pores in the porous wall of the negative pressure vessel (UBH) 28. The continuous processing apparatus according to claim 26 or 27. 29. The negative pressure vessel (UBH) and the heating device (HZ) are combined into one component unit. The heating device (HZ) is connected to the support surface (AFL) for the material to be processed and Any one of claims 26 to 28, characterized in that they are operationally connected at a point of morphism. The continuous processing device according to item 1. 30. be provided with a conveying device extending along a closed working path (AB); The continuous processing apparatus according to any one of claims 8 to 29, characterized in that: 31. Apparatus for processing leather, hides, fur and similar materials, in particular claims 8 to 30. A support for at least one piece of material to be processed is provided in the continuous processing apparatus according to any one of the preceding clauses. Types with loading or expanding station with holding surface (AFL) and at least one linearly extending piece of material (FL) alignment demarcation mark (MK ) is provided. 32. In particular, it is arranged on the supporting surface (AFL) and is at least partially transparent and flat. 32. The processing apparatus according to claim 31, further comprising a support member having a demarcation mark (MK ), in particular by at least one light emitting element (LE) arranged in the support surface. It is characterized by being formed by a plurality of the light emitting elements arranged along a continuous line. processing equipment. 33. A projection device (PR) placed above the support surface (AFL) is connected to the light emitting element. Claim 3 characterized in that the delimitation mark is provided for creating a demarcation mark consisting of 33. The processing device according to 1 or 32.