Method and apparatus for making stamp

FIELD: method and apparatus for making stamp and other parts with surface having printed image and formed by layer-by-layer application of liquid and settable material onto substrate.

SUBSTANCE: apparatus 4 for making stamp 1 having surface 3 with printed image 2 has at least one printing head 5. Said head may perform multiple motion over surface 3 of stamp 1. Apparatus also has at least one jet 6 for layer-by-layer formation of surface 3 by printing process from liquid and settable material 8 such as polymer.

EFFECT: simplified low-cost method for making stamps, possibly small number of stamps.

24 cl, 8 dwg

 

The invention relates to a method and apparatus for the manufacture of stamps, the plates, etc. from the surface containing the printed image and manufactured layer-by-layer coating liquid and curable material on a substrate.

This invention relates to stamps and plate plates or similar devices used to transfer a printed image on an object.

Typically the stamps or the plates are made of different materials in a manner of material removal, such as engraving, milling, etc. In modern devices removal of material is performed by laser, roaming over the plastic block. Control data for machining tool or laser, is required to obtain the desired cliche in most cases are provided by the computer.

Ways of making stamps, forming plates, etc. that use removal of material, typically require relatively large cost of removing the removable material. In addition, remaining on the stamp material particles can lead to inaccurate and undesirable printing results. In addition, the pollution in the implementation of manufacturing methods with the removal of the material is relatively high, causing the corresponding device neo is to be installed in a separate room or, at least, to provide a covering.

In the patent US 5731033 And described a means and a method of manufacturing a stamp, in which the liquid curable material is applied by hand to the surface containing the printed image. Such manufacturing stamps by hand is intended for home use and the most suitable, in particular, for children to play. However, the rapid and easy production of stamps, as well as making accurate printing plates with high resolution is not possible.

Known methods of manufacture stamp, in which case the stamp is made by sintering a powder material. This method is described, for example, in the patent DE 3921623 A1. The disadvantage of this method of sintering, as well as a molding method, is that the production of the necessary forms, with a corresponding printed image is time consuming and expensive. Thus, such methods are unsuitable for manufacturing small series of stamps, etc.

Known, finally, ways of making stamps, in which the liquid material reinforce through targeted exposure to light and remove excess material, for example, using ultrasound. This method is described, for example, in the patent DE 19747877 A1. However, the manipulation of liquid preparations stamp surfaces is time-consuming, p is because they should not be subject to accidental light exposure.

Laser or photopolymer ways though and have benefits in terms of waste generation, but are relatively time consuming and expensive. Another disadvantage of the known manufacturing methods lies in the fact that the burning of plastic stamps, etc. are formed of undesirable exhaust gases, which often need to suck.

The speed of manufacture is known systems often also an obstacle for the rapid production of printing plates in very small series.

Therefore, the task of the invention is to provide the above method and device for the manufacture of stamps, the plates, etc. that provide particularly cheap, quick and easy printing of images including a small number of products in pieces.

In relation to the way the task according to the invention is solved in that the layering liquid and curable material is made by means of printing. Due to the production of stamps, plate plate, etc. by means of printing similar to dye-jet method (method "inkjet") removal of material is not required, resulting in excessive become a device for removing residual material and for collecting the formed vapors, etc. there is No need for the device to protect the environment from pollution. In the method p is Catania in relation to the chosen liquid and curable material and the corresponding printhead is a high resolution, so you can simply and quickly produce a very thin printed clichés. To obtain relief structure, forming stamp, plate plate, and the like, each other impose multiple layers of liquid and curable material. To this end, at least one printhead with at least one nozzle is moved above the substrate and serves liquid and curable material drops. The flow is controlled by an appropriate valve according to the computing machine. Another advantage is that this method makes it relatively cheap to produce especially large stamps, plate plate, etc. of the Substrate, which is applied to the surface containing the printed image after the printing process can be removed or left.

Before applying the material forming the surface, if necessary, the substrate may be applied intermediate adhesion layer. It serves to link cliche, manufactured printed, with the substrate. The material for the binder composition should be aligned with the substrate material, and material used for the manufacture of printed image.

The material forming the surface, before the printing process can be blended with additives. These additives can be used to speed up the process of re is the origin or formation of pores for samoodrzivosti stamps, the so-called stamps "self - ink". Thus shortly before the printing process between a mixing two or more components of the liquid and curable material.

For increasing the viscosity of the material forming the surface, this material can be heated before and/or during the printing process.

To ensure rapid manufacturing of stamps, the plates etc. curing of the material forming the surface, can be accelerated in between layering. This can be accomplished, for example, by cooling or evaporation of hardeners or other chemicals.

According to the following characteristic of the invention provides for the dispensing of a quantity of coating material. Thus by means of dosing can be made particularly thin details in clichés stamps, plate plate, etc.

In the case of the dispensing of coating material can also reduce the amount from layer to layer, which allows to obtain a narrowing in the cross-section of the bridge and thus is a more subtle pattern on the stamp, without fear of breakage of the bridges in clichés.

As a material forming the surface, it is preferable to use a polymer or liquid rubber.

To obtain samoodrzivosti stamps, the so-called stamp self ink", as mater is Ala, forming the surface, can be used a porous material. Through the resulting pores ink under pressure is diffused on the surface of the stamp, the plates etc.

The substrate can be applied gypsum plate, which at the end of the manufacturing process remains associated with the printed image or with which the printed image is removed before placing on the stamp, plate plate, etc.

It is also possible as a substrate to use film-based plastic, which at the end of the manufacturing process remains on the stamp, plate plate, etc.

The task according to the invention is also solved by a device for the manufacture of stamps, the plates, etc. from the surface containing the printed image, which provides a device for printing with at least one repeatedly moved over the surface of the printhead with at least one nozzle for layering method for printing the surface of the liquid and curable material. Thanks proposed in accordance with the invention to use the device for printing, in particular devices for the manufacture of dies, forming plates, etc. similar to the dye-jet method "inkjet", can be achieved particularly cheap and quick production materials : carbon is LEU, forming plates and the like, including a small number of pieces. Moving the printhead relative to the surface of the stamp or the plates may be effected as by moving the print head, or by moving the substrate on which must be obtained printed image, or by moving both elements. Typically, the print head may move relative to the substrate in horizontal and vertical direction.

If the printhead includes a heating device, the material forming the surface, before the release can be heated and its viscosity increased, resulting in the possible returns of smaller droplets of the material.

If provided a mixing device for mixing the material forming the surface, on the one hand can be used one - or multi-component material, which, for example, after mixing, especially fast hardening, or the material can be blended with other additives.

To accelerate the curing process may be provided by the cooling unit, which preferably follows the printhead.

The cooling device may be formed, for example, blower, etc. accelerating the curing process of the material.

According to the following characteristic and the gain provided by a dosing device for dosing the quantity of delivered material.

To control the printing device for the manufacture of dies, forming plates and the like, it is preferably provided with a device for connection with a computing unit.

The invention is explained in more detail using the attached drawing, which shows:

figure 1 - schematically in perspective view proposed according to the invention an apparatus for manufacturing stamp;

figure 2 is a perspective view illustrating the possible movement of the printhead;

figure 3 is a cutaway part is made according to the invention the surface of the stamp;

figure 4 is a variant of the cutaway part of the surface of the stamp;

figure 5 is a perspective view of part of the surface of the stamp, obtained by means of printing;

figure 6-8 - cutaway various forms of execution of the stamp, made by means of printing.

Proposed in accordance with the invention, the device for manufacturing stamp 1, the plates, etc. from the surface 3, containing the printed image 2, contains a device for printing 4 with at least one of the printhead 5 with at least one nozzle 6. The print head 5 mounted for movement over the surface 3 is preferably in the directions X, Y and z even, n is and where the print head 5 fixed, and the stamp 1 or the substrate are movable. In the vessel 7 contains material 8, forming the surface 3 of the die 1, the plates, etc, or at least a component of the material 8. Through the corresponding supply pipe 9 liquid material 8 can be fed to the printhead 5. If necessary in another tank 10 may be a component 11 or the additive supplied to the print head 5 through the supply pipe 12. In accordance with the need of the mixing device 13 material 8 is mixed with the additive 11 before the release of the printhead 5. For increasing the viscosity of the material 8, the latter may be heated in the heating device 14 to the printhead 5, or in front of her. The data required to control the return of material from the printhead 5 is usually provided by the block 15 of the computer-related device for printing 4 through interfaces 16.

Printhead 5 describes the surface 3 of the die 1, etc. in the form of, for example, meander, as shown in figure 2. Everywhere, where according to the block 15 of the computer in accordance with the printed image 2 on the surface 3 of the die 1 must be formed relief through the nozzle 6, at least one printhead 5 dropwise occurs return liquid and cured material.

As shown in section in figure 3, by the recoil dropwise liquid curable material 8 on the surface 3 of the die 1 is formed a layer of material 8. This process is repeated many times, resulting in multiple layers of material 8 are arranged one above the other and thereby form a printed image 2 stamps 1. To accelerate the curing of the liquid material 8 after application to the surface 3 of the die 1 after application to carry out, for example, cooling each layer of material 8. It is also possible, as shown in figure 3, for optimum formation of the layers to shift the print head 5 from layer to layer by a small distance corresponding to approximately half the width of the drop.

According to figure 4 provides the possibility from layer to layer to reduce the width of the marked material 8 to form finer patterns stamps and, in addition, to increase the stability of the resulting jumpers printed image.

Figure 5 shows a perspective view manufactured in accordance with the invention stamp 1, which of liquid and curable material 8 by means of printing on the surface 3 is formed of a printed image 2.

6 shows in section the stamp 1 in which the material 8, which forms the printed image 2, applied by means of printing on under the oku in the form of a glass plate 17.

According to Fig.7. a printed image 2 together with the substrate material 8 is deposited on a substrate in the form of plate-basics 18. Plate base 18 in this case remains on the stamp 1 or the plate the plate.

In the variant according pig material by means of printing applied on the working plate 19, which may be performed, for example, from a soft polymer. The working plate 19 is connected with the film base 20, designed to reduce distortion of the print.

In order for one working the reception to make a couple of stamps 1 with the same printed image 2, several printing heads 5 can be interconnected and managed as a single unit 15 computers. Method for the manufacture of dies 1, forming plates and the like, proposed according to the invention, provides a simple, rapid and inexpensive manufacture of dies 1 and the like, including a small number of pieces. In addition, in the proposed method does not cause pollution, because in contrast to the known methods of manufacturing does not occur material removal. Further processing, such as, for example, the suction removed material or subsequent cleaning of the surface of the stamp is not required. When you use special materials for forming the surface of the stamp by means of printing, you can also make the materials : carbon and stamp with integrated pillow, the so-called samootrechenie stamps "self-ink". In such ink stamps diffuse through the pores of the material of the stamp to the surface.

1. A method of manufacturing a stamp or the plates with the surface containing the printed image and manufactured layer-by-layer coating liquid and curable material on a substrate, characterized in that the layering liquid and curable material is carried out by means of printing.

2. The method according to claim 1, characterized in that before applying the material forming the surface on the substrate cause the intermediate adhesion layer.

3. The method according to claim 1, wherein the material forming the surface, before the printing process admixed additives.

4. The method according to claim 2, characterized in that the material forming the surface, before the printing process admixed additives.

5. The method according to any one of claims 1 to 4, characterized in that the quantity of coating material is metered.

6. The method according to claim 5, characterized in that the quantity of coating material decrease from layer to layer.

7. The method according to any one of claims 1 to 4, characterized in that the material forming the surface, apply the polymer.

8. The method according to claim 5, characterized in that the material forming the surface, apply the polymer.

9. The method according to claim 6, characterized in, is the quality of the material, forming the surface, apply the polymer.

10. The method according to claim 1, characterized in that the material forming the surface, is heated before and/or during the printing process.

11. The method according to claim 1, characterized in that the curing of the material forming the surface, accelerate in between layering.

12. The method according to claim 11, characterized in that the curing speed by cooling.

13. The method according to claim 11, characterized in that the curing is carried out by spraying hardeners.

14. The method according to claim 1, characterized in that the material forming the surface, apply liquid rubber.

15. The method according to claim 1, characterized in that the material forming the surface, apply a porous material.

16. The method according to claim 1, characterized in that the substrate used glass plate.

17. The method according to claim 1, characterized in that the substrate used film-based plastic.

18. Device for the manufacture of stamps (1) or the plates with the surface (3)containing a printed image (2), characterized in that it contains a device for printing (4) with at least one made with the possibility of multiple moving above the surface (3) of the printhead (5) with at least one nozzle (6) for the layer formation method of printing on top of the spine (3) of the liquid and curable material (8) and fitted with a metering device for metering the quantity of delivered material.

19. The device according to p, characterized in that the print head (5) comprises a heating device (14).

20. The device according to p, characterized in that it contains a mixing device (13) for mixing the material (8), forming the surface (3).

21. The device according to claim 19, characterized in that it contains a mixing device (13) for mixing the material (8), forming the surface (3).

22. The device according to p, characterized in that it contains a cooling device, which preferably follows the printhead (5).

23. The device according to item 22, wherein the cooling device is designed as a blower.

24. The device according to p, characterized in that the device for printing (4) provided with a device (16) for connection with a computing unit (15).



 

Same patents:

FIELD: method and apparatus for making stamp and other parts with surface having printed image and formed by layer-by-layer application of liquid and settable material onto substrate.

SUBSTANCE: apparatus 4 for making stamp 1 having surface 3 with printed image 2 has at least one printing head 5. Said head may perform multiple motion over surface 3 of stamp 1. Apparatus also has at least one jet 6 for layer-by-layer formation of surface 3 by printing process from liquid and settable material 8 such as polymer.

EFFECT: simplified low-cost method for making stamps, possibly small number of stamps.

24 cl, 8 dwg

FIELD: printing industry.

SUBSTANCE: hand stamp is arranged with a stamping plate drawn back into body from initial position, which is arranged as movable by means of control element towards spring force into stamping position and with partially open pores. Besides, stamping plate is arranged as adjacent to paint-accumulating element installed in partially bordering holder, to receive stamping paint from it. At the same time holder is arranged in the form of bath and is directly fixed with connection element attached to control element, having at least one feeding nozzle directed towards paint-feeding hole in holder base wall. Invention also relates to paint-accumulating element used in stamp.

EFFECT: group of inventions provides for development of a simple stamp, which is devoid of contamination risk as accumulating element is withdrawn, and provides for simple repeated removal of accumulating element, stamping paint of which has been spent.

20 cl, 14 dwg

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