UA148158U - DEVICE FOR SIMULTANEOUS FORMATION AND DECORATION OF THE PRODUCT - Google Patents

Abstract

The device for simultaneous molding and decoration of the product contains a mold formed by forming parts. The device also contains at least one segment matrix, the forming cavity of which is made of embossed with the possibility of forming a final product with a three-dimensional textured outer surface, and the shape of the final product is determined by the cavity formed between the molding parts.

Description

The useful model belongs to devices for simultaneous molding and decoration of polymer products in the process of injection molding.

Traditionally, as a method of decorating the surface of polymer molded products, the method of simultaneous casting and decoration using, for example, image transfer film is used. The ever-growing interest in aesthetic solutions prompted the applicant to try to obtain a textured surface of a polymer product by injection molding, that is, with patterns in the form of depressions or bulges, but not exclusively, which consist of lines in one or more directions that give roughness to the outer surface of the products.

A known device for injection molding with the decoration of a decorative sheet containing patterns, letters or the like, to the surface of a polymer product obtained by injection molding, inside the mold while simultaneously performing injection molding, thereby obtaining a molded product. The device includes a mold to be covered and a mold to cover, a transfer chuck for feeding the decorative sheet between the mold to cover and the mold to cover, and a clamp to fix the decorative sheet with pressure on the parting surface of the mold to cover (US Patent Mo 803380782, publ. 11.10. 2011).

Also known is a device for decorating during molding, designed to obtain a polymer cast product and simultaneously bond a decorative sheet with the surface of a polymer cast product, for decorating the surface of a polymer cast product, which contains a mold assembly, which includes a movable part of the mold with the surface of the formation of the first cavity, on which the first cavity is formed, and the stationary part of the mold with the surface of the formation of the second cavity, on which the second cavity is formed (VY 2009138054А, publ. 04.20.2011).

Also known is a device for the production of plastic products with multi-colored decoration on the outer surface, which contains a mold formed by the mold-forming elements of the matrix and a punch and flange plates, respectively, installed on movable and stationary plates. The device is equipped with feeding and receiving mechanisms for feeding the film with decor into the cavity of the mold connector (Application of the Russian Federation Mo 95116480, publ. 09/10/1997).

The disadvantages of the above devices are limited technological possibilities for decorating products of various shapes.

A well-known device for simultaneous molding and decorating with frame pressure, in which the decorating film is applied to the surface of the metal mold cavity by vacuum suction and the extruded polymer is introduced into the metal mold. After the image transfer film comes into contact with the surface of the cavity in the process of vacuum suction, the metal mold is closed, so that a molded and decorated product is created at the same time (VO 2408456С02, publ. 01.20.2010).

The known device has the same disadvantages as mentioned above.

The closest analogue is a device for forming a product, which contains casting molds with forming cavities of different geometric shapes, which is determined by the configurations of at least two of the specified parts, namely, the insert and the final product, and the shape of the first forming cavity is determined by the shape of the insert of the first part product, and the shape of the second cavity is determined by the shape of the insert and the final product, while the forming cavities of the casting molds are made with the possibility of simultaneous formation and decoration of the outer surface of the final product (Patent VO 169958 01, publ. 04.10.2017).

The disadvantage of the closest analogue is the low technological capabilities of the device for the simultaneous formation and decoration of a polymer product in one mold.

The task of the useful model is to simplify the device, expand its technological capabilities for forming a product with a decorated outer surface in one technological cycle.

The task is solved by the fact that the device for simultaneous forming and decorating the product, which contains a mold formed by forming parts, according to the useful model, contains at least one segment matrix, the forming cavity of which is made of a relief-forming type with the possibility of forming the final product with a three-dimensional textured outer surface, and the shape of the final product is determined by the cavity formed between the form-forming parts of the casting mold.

Preferably, the end product is a part of a bottle closure device.

Preferably, the device additionally contains at least one segment matrix with a relief-forming surface for forming a three-dimensional textured side surface of the product.

Preferably, the device contains a sprue matrix with a relief-forming surface for forming a three-dimensional textured end surface of the product.

Preferably, at least one segment matrix is inserted into the bracket with the possibility of movement in the axial and radial directions.

In fig. 1 shows the foundry mold at the time of injection of thermoplastic polymer material; in fig. 2 shows the output of the finished product from the segment matrix; in fig. C - removal of the product from the punch mark; in fig. 4 - the view of the finished product is shown.

The device for the simultaneous formation and decoration of the product contains a casting mold formed by the following forming parts: at least one segment matrix 1 and a punch 2, a sprue matrix 3, a clip 4 with holders 5 and a puller 6.

The form-forming cavity of the segment matrix 1 is made, preferably, with a relief-forming surface. The indicated segment matrix 1 is inserted into the holder 4, with the possibility of movement in the axial and radial directions until the moment of release of the three-dimensional textured surface of the final product 7.

The form-forming surface of the sprue matrix Z is made with a relief-forming surface for forming a three-dimensional textured surface of the end of the final product 7.

The device is designed in such a way that the segment matrix 1 forms the outer surface of the cast product, and the punch - the inner surface. For this, a cavity is created between the punch 2, puller b, segment 1 and sprue Z matrices, into which the molten polymer material is injected from the injection nozzle 8.

The device for simultaneous casting and decoration of a polymer product works as follows.

In the form-forming cavities between the segmental matrix 1, the punch 2, the sprue matrix

With the puller 6, molten polymer material is injected, which fills the relief pattern of the internal cavities of the molding parts of the casting mold, while a cylindrical casting with a three-dimensional texture of the outer side and end surfaces is formed. After cooling, the segment matrix 1 together with the casting moves in the holder in the axial and radial direction, gradually releasing the casting, i.e. the final product 7, from the segments of the matrix 1, as well as the sprue matrix C without damage and deformation of the external three-dimensional texture. At the same time, the segments of the segment matrix 1 are fixed in the holder 4 by the holders 5. Then the finished product 7 together with the punch 2 and the puller 6 goes beyond the boundaries of the segment matrix 1 and further, with the help of the puller 8, the specified product is removed from the punch 2 and dumped into the container.

The thickness of the three-dimensional textured outer and end surface (undersides) can be from 0.01 to 5 mm.

In this version of the design of the device, the matrix 1 consists of four segments. In other variants, the number of segments can be one or more.

The resulting three-dimensional textured surface of the finished product can be covered with additional means of decoration, such as foil, spray spraying, vacuum spraying, hot embossing, etc.

The proposed design allows forming products with a three-dimensional textured outer surface in one technological cycle.

Claims (5)

USEFUL MODEL FORMULA 1. A device for the simultaneous formation and decoration of a product containing a casting mold formed by molding parts, which is characterized by the fact that it contains at least one segmental matrix, the molding cavity of which is made of relief-forming with the possibility of forming the final product with a three-dimensional textured outer surface, and the mold of the final product is determined by the cavity formed between the forming parts of the casting mold. 2. The device according to claim 1, which is characterized by the fact that the final product is a part of the capping device for the bottle. C. The device according to claim 1, characterized in that at least one segment matrix is made with a relief-forming surface to form a three-dimensional textured side surface of the product. 4. The device according to claim 1, which is characterized by the fact that it additionally contains a sprue matrix with a relief-forming surface for forming a three-dimensional textured end surface of the product. 5. The device according to claim 1, which is characterized by the fact that at least one segment matrix is inserted into the bracket with the possibility of movement in the axial and radial directions.