Preparation method of mosaic partial grating roller and partial grating roller product

Abstract

The present invention provides a mosaic type partial grating roller, belonging to the technical field of grating materials. It comprises a base roller, the outer surface of the base roller is provided with a groove, a grating block is arranged in the groove, and the grating block is embedded in the groove through a metal glue layer. The preparation method of the mosaic type partial grating roller is to provide a groove corresponding to the shape and size of the grating block on the outer surface of the outer roller of the base roller, add metal glue into the groove, and install the grating block in the groove, and tightly bond it with the outer surface of the base roller under the action of the metal glue to form a mosaic type partial grating roller. The present invention also provides a partial grating roller product prepared by using the mosaic type partial grating roller. The mosaic type partial grating roller of the present invention combines the smooth surface and the grating, and adopts a mosaic type preparation process, which can realize the local grating processing in different positions and structural shapes, making the design of the local grating more diversified.

Description

Technical Field

[0001] The invention belongs to the technical field of grating materials, and in particular relates to an inlaid partial grating roller, a partial grating roller product and a preparation method. Background Art

[0002] At present, 3D products have become more and more popular in the market. With the popularity of 3D movies and TV, the market demand for products with a sense of depth and three-dimensionality has also been driven. It is quite common to use extruded transparent plastic films to produce packaging boxes. They are mainly divided into two types: grating films and glossy films. There are only two structural forms of packaging boxes made of them: one is a packaging box composed entirely of grating films. This grating packaging box has a three-dimensional depth of field effect and anti-counterfeiting function, but the appearance color is relatively dim and there is a lack of subsequent processing technology; the other is a packaging box composed entirely of glossy films. This glossy packaging box can show the shape of the objects in the packaging box and has rich subsequent processing technology, but it has poor anti-counterfeiting, is easy to scratch, and has high production costs.

[0003] The combination of glossy surface and grating to develop three-dimensional and transparent packaging boxes has become a new direction for the development of the plastic packaging market. For example, Chinese patents 200920302313.7 and 200920303995.3 disclose a method of using a high-frequency welding machine to weld grating sheets and glossy sheets together to form an integral packaging box body, but the box body produced by this technology has obvious welding stripes on the surface and poor stiffness; for example, Chinese patent 201210577362.8 discloses a method of coating or printing a transparent resin layer on the surface of a transparent plastic film, and using a cylindrical grating plate to emboss the surface of the transparent resin layer to form a local three-dimensional grating, but this technology has problems such as the transparent resin grating layer is easy to scrape off, high cost, low efficiency, and difficult product recycling. Summary of the invention

[0004] The purpose of the present invention is to provide a mosaic local grating roller, a local grating roller product and a preparation method. The mosaic local grating roller of the present invention combines a smooth surface and a grating, and adopts a mosaic preparation process, which can realize local grating processing at different positions and structures, making the design of the local grating more diversified.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A mosaic type partial grating roller comprises a base roller, wherein the outer surface of the base roller is provided with a groove, a grating block is arranged in the groove, and the grating block is embedded in the groove through a metal glue layer.

[0007] Furthermore, the shape and size of the grating block correspond to the groove; the surface of the grating block and the outer surface of the base roller are on the same arc surface.

[0008] Furthermore, a scanning positioning point is arranged at the edge of the outer surface of the base roller corresponding to the position of the grating block.

[0009] Furthermore, the base roller is provided with an outer roller, an inner roller and a cooling water inlet and outlet pipe in sequence from the outside to the inside, a cooling water circulation pipe is provided between the outer roller and the inner roller, and the groove is provided on the outer surface of the outer roller.

[0010] Furthermore, the wall thickness of the outer roller is 18-25 mm, and the depth of the groove is 2 / 3-3 / 4 of the wall thickness of the outer roller.

[0011] Furthermore, the preparation method is to open a groove corresponding to the shape and size of the grating block on the outer surface of the outer roller of the base roller, add metal glue into the groove, and install the grating block in the groove, and tightly bond it to the base roller under the action of the metal glue to form an inlaid local grating roller.

[0012] Furthermore, the grating block is prepared by a grating sleeve roller, the outer surface of the grating sleeve roller is consistent with the outer surface of the base roller, and the grating block corresponding to the specification shape of the groove is removed from the grating sleeve roller according to the specification shape of the groove on the base roller; the wall thickness of the grating sleeve roller should ensure that the removed grating block is on the same arc surface as the outer surface of the base roller after being installed in the groove.

[0013] A partial grating roller product is prepared by using the partial grating roller described above.

[0014] Furthermore, the partial grating roller product is made of thermoplastic material as raw material and is prepared by using a partial grating roller through pressing, coating, and hot embossing processes.

[0015] Furthermore, the local grating roller product includes a grating part and a non-grating part, the back of the grating part is printed with a three-dimensional dislocated image, and the non-grating part includes one or more of a glossy surface, a frosted surface or a holographic microstructure. When the non-grating part is a glossy surface, its back is printed with other images different from the three-dimensional dislocated image.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The inlaid local grating roller of the present invention combines the smooth surface and the grating, and adopts an inlaid preparation process, so as to realize the processing of local gratings in different positions and structural shapes, thereby making the design of the local grating more diversified.

[0018] The existing grating roller is processed by a single-point diamond cutting machine. This processing method is that the outer roller of the base roller rotates rapidly on the machine tool, and the tool follows the cutting. It can only realize continuous processing of the grating in the circumferential direction of the outer roller of the base roller, and cannot realize local processing. The inlay process is to inlay the grating block on the outer roller of the base roller with a groove, and the shape and size of the groove correspond to the grating block, which realizes the local grating roller processing that cannot be achieved by the existing processing method.

[0019] The partial grating roller product obtained by the partial grating roller processing of the present invention can achieve different effects in the non-grating area through printing, hot stamping, embossing and other processes, and then the design and production of packaging products can be realized through the partial grating roller product. The packaging products prepared using the partial grating roller product have the special effect of grating display, which improves the customer's intuitive effect on the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the mosaic partial grating roller;

[0021] Figure 2 It is a schematic diagram of the expansion of the mosaic partial grating roller;

[0022] Figure 3 is a cross-sectional view of a mosaic partial grating roller;

[0023] Figure 4 is a schematic diagram of a grating sleeve roller;

[0024] Figure 5 It is a structural schematic diagram of a local grating roller product;

[0025] Figure markings: 1-base roller, 2-groove, 3-grating block, 4-metal glue layer, 5-scanning positioning point, 6-grating part, 7-non-grating part, 8-three-dimensional dislocated image, 9-other images, 101-outer roller, 102-inner roller, 103-cooling water inlet and outlet pipes, 104-cooling water circulation pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] The following is a detailed description of an inlaid partial grating roller, a partial grating roller product and a preparation method of the present invention in combination with specific structures and principles.

[0028] The present invention provides a mosaic type partial grating roller, such as Figure 1 , Figure 2 and Figure 3It comprises a base roller 1, a groove 2 is formed on the outer surface of the base roller 1, a grating block 3 is arranged in the groove 2, and the grating block 3 is embedded in the groove 2 through a metal glue layer 4.

[0029] The existing grating roller is processed by a single-point diamond cutting machine. This processing method involves quickly rotating the tool on the machine to follow up the cutting of the outer roller 101 of the base roller 1. This can only achieve continuous processing of the grating in the circumferential direction of the outer roller 101 of the base roller 1, and cannot achieve local processing. The inlay process is to inlay the grating block 3 on the outer roller 101 of the base roller 1 with the groove 2, and the shape and size of the groove 2 correspond to the grating block 3, thereby achieving local grating roller processing that cannot be achieved by the existing processing methods.

[0030] The local grating roller product processed by the inlaid local grating roller of the present invention can achieve a special local three-dimensional effect in the packaging product prepared by using the local grating roller product. The position, size, shape, etc. of the local three-dimensional can be achieved through the local grating roller product according to the design requirements of the packaging product, and other positions of the packaging product can be processed with various surface effects according to the design requirements, which can display a new packaging method that combines three-dimensional and traditional methods.

[0031] Patent application number 201220592612.6 discloses a local three-dimensional grating product, which can realize several or more local gratings in the axial direction of the grating roller, but the gratings in the circumferential direction are continuous (that is, each grating column is a complete circle in the circumferential direction); the mosaic local grating roller of this application can be disconnected in both the axial and circumferential directions, and a local grating effect can be realized at any position or multiple positions on the outer surface of the base roller 1.

[0032] The size, shape, arrangement and number of the grooves 2 of the base roller 1 are determined according to the design requirements of the local grating packaging product (prepared from the local grating roller product), the specifications of the local grating roller product, the extrusion design and other requirements for the base roller 1.

[0033] Furthermore, the shape and size of the grating block 3 correspond to the groove 2; the surface of the grating block 3 is on the same arc surface as the outer surface of the base roller 1. The shape and size of the grating block 3 are limited to correspond to the groove 2, so that the smoothness and flatness of the outer surface of the base roller 1 can be guaranteed after the metal glue is bonded and inlaid, so that the surface of the grating block 3 after inlay is on the same arc surface as the outer surface of the base roller 1, which is conducive to the subsequent processing of the partial grating roller product.

[0034] Furthermore, a scanning positioning point 5 is provided at the edge of the outer surface of the base roller 1 corresponding to the position of the grating block 3. When preparing a partial grating roller product through a partial grating roller, the laser scanner sprays a code on the partial grating roller product by scanning the positioning point 5, and then performs positioning and cutting by scanning the position information of the sprayed code. The scanning positioning point 5 is used for positioning, and can also be adjusted according to actual conditions, as long as the purpose of positioning can be achieved.

[0035] Furthermore, the base roller 1 is provided with an outer roller 101, an inner roller 102 and a cooling water inlet and outlet pipe 103 in sequence from the outside to the inside, a cooling water circulation pipe 104 is provided between the outer roller 101 and the inner roller 102, and the groove 2 is provided on the outer surface of the outer roller 101. The function of the outer roller 101 of the base roller 1 is to make the roller surface evenly heated, achieve the surface structure effect and inlay the grating block 3; the function of the inner roller 102 of the base roller 1 is to provide a bearing space for milling the cooling water circulation pipe 104 and the inlet and outlet pipes; the cooling water inlet and outlet pipes are the conveying carriers for providing inlet and outlet water for the cooling circulation water; the cooling water circulation pipe 104 is a series of water grooves milled along the outer surface of the inner roller 102, and the cooling water can take away the heat transferred from the outer roller 101 in time through the circulation of these water grooves, so that the surface of the outer roller 101 can be continuously in a relatively low temperature state, thereby playing a role in timely cooling and shaping for the production of local grating roller products. The outer roller 101 and the inner roller 102 can be completely and tightly assembled to seal the cooling water circulation pipe 104, so that the cooling water can flow and circulate inside the roller. The cooling water inlet and outlet pipes are arranged through the inner circle of the inner roller 102. Holes are set at both ends of the inner roller 102 to connect with the cooling water circulation pipe 104, and then can be connected to the external cooling water treatment center to ensure the normal operation of the entire roller, so that the local grating products produced can be cooled and shaped in time.

[0036] Furthermore, the wall thickness of the outer roller 101 is 18-25 mm, and the depth of the groove 2 is 2 / 3-3 / 4 of the wall thickness of the outer roller 101. The wall thickness of the outer roller 101 is 18-25 mm, which is determined based on the stability of cooling, and the depth of the groove 2 needs to meet the processing of the grating block 3. If the grating block 3 is too thin, the surface structure is easily deformed, affecting the grating accuracy and inlay accuracy. If the grating block 3 is too thick, the groove 2 may approach or exceed the wall thickness of the outer roller 101. The interior of the outer roller 101 is a cooling water circulation pipe 104. If the groove 2 is too close to the cooling water circulation pipe 104, the cooling water may be pressed to break the grating block 3 embedded in the groove 2.

[0037] Furthermore, the preparation method is to open a groove 2 corresponding to the shape and size of the grating block 3 on the outer surface of the outer roller 101 of the base roller 1, add metal glue to the groove 2, and install the grating block 3 in the groove 2, and tightly bond it with the base roller 1 under the action of the metal glue to form an inlaid partial grating roller. The amount of metal glue added is determined according to the volume difference between the grating block 3 and the groove 2, and it should be ensured that the grating block 3 is on the same arc surface as the outer surface of the base roller 1 after installation. The metal glue is preferably resistant to a temperature of 250°C or above, and conventional high-temperature resistant metal glue in the art can be used.

[0038] Furthermore, the grating block 3 is prepared by a grating sleeve roller, the outer surface of the grating sleeve roller is consistent with the outer surface of the base roller 1, and the grating block 3 corresponding to the specification and shape of the groove 2 on the base roller 1 is removed from the grating sleeve roller; the wall thickness of the grating sleeve roller should ensure that the removed grating block 3 is on the same arc surface as the outer surface of the base roller 1 after being installed in the groove 2. The grating sleeve roller can remove multiple grating blocks 3 to meet the use of multiple positions or multiple local grating rollers with the same external dimensions.

[0039] The grating sleeve roller is a roller with a certain wall thickness, no internal structure, and a grating structure on the surface, such as Figure 4 As shown, there are three key parameters, namely, the outer surface, the inner surface and the wall thickness. These three key parameters are designed and processed according to the shape and size of the base roller 1 and the groove 2, so that the grating block 3 removed from the grating sleeve roller can be inlaid and used without secondary processing. The outer surface of the grating sleeve roller is processed into the same curvature as the outer surface of the base roller 1, so that the curvature of the grating block 3 removed from the grating sleeve roller is consistent with the outer surface of the base roller 1, and there will be no unevenness; the wall thickness of the grating sleeve roller makes the removed grating block 3 on the same arc surface as the outer surface of the base roller 1 after being installed in the groove 2, which can also be understood as the thickness of the grating sleeve roller is consistent with the thickness of the groove 2 (minus the metal glue layer 4), so that the processing of the inner surface of the grating block 3 (grating sleeve roller) can be omitted, and the inner surface of the grating block can be closely matched with the groove 2, without protrusion, concave or unevenness. If a flat plate grating block 3 is used, the grating block 3 needs to be processed to match the outer surface with the outer surface of the base roller 1 and the inner surface with the groove 2, which is difficult to process.

[0040] Furthermore, the surface of the base roller 1 may be a variety of microstructures such as mirror, frosted, holographic, cat's eye, concave and convex; the surface grating structure of the grating sleeve roller may be a surface microstructure such as a cylindrical lens and a prism.

[0041] A partial grating roller product is prepared by using the partial grating roller described above.

[0042] Furthermore, the partial grating roller product is made of thermoplastic material as raw material, and is prepared by extrusion, coating, and hot stamping using a partial grating roller. The thermoplastic material is preferably one or more of PET, PP, and PC. For the processes such as extrusion, coating, and hot stamping, conventional processing methods in the art can be used.

[0043] Further, the local grating roller product is as follows Figure 5 As shown (the figure takes the glossy surface as an example), the local grating roller product includes a grating portion 6 and a non-grating portion 7, the back of the grating portion 6 is printed with a three-dimensional dislocated image 8, and the non-grating portion 7 includes one or more of a glossy surface, a frosted surface or a holographic microstructure. When the non-grating portion 7 is a glossy surface, other images 9 different from the three-dimensional dislocated image 8 are printed on its back. When the non-grating portion 7 is a frosted or holographic microstructure, it is not necessary to print an image on the back of the frosted or holographic microstructure, forming a combination of a local grating and a frosted or holographic microstructure.

[0044] The back of the grating part 6 is printed with a three-dimensional dislocated image 8. The grating has the function of refraction and spectroscopy. The two eyes of a person can see images at different angles through the grating, thereby forming a three-dimensional effect with visual depth of field in the mind. However, the plane images, texts, lines, etc. are not clear due to the refraction and spectroscopy of the grating, which affects the visual effect. The local grating can print a three-dimensional dislocated image 8 on the back of the grating part 6 to achieve a three-dimensional effect. The non-grating part 7 (mainly referring to the glossy surface) prints the plane image, text, and lines without being affected by the grating. In this way, there is both a three-dimensional effect and a plane display effect, which improves the grade of the packaging product and plays an anti-counterfeiting role. The printed three-dimensional dislocated image 8 and other images 9 can be set according to design needs. At the same time, the grating part 6 can also be combined with surface effects such as frosting and holographic microstructures to achieve a combination with traditional packaging surface effects, so that the grating three-dimensional has a richer application scheme, which is easy to implement for technicians in this field.

[0045] The local grating roller is obtained by extrusion, coating, hot embossing and other processes to obtain a local grating roller product. The extrusion process is to heat and melt the plastic raw material and extrude it through a die head. The local grating roller presses and cools the molten plastic material to shape it on the local grating roller product, thereby completing the production of the local grating roller product; the scanning positioning point 5 on the local grating roller can be positioned by laser scanning and then coded on the local grating roller product. The local grating roller product after coding is cut into pieces of local grating sheets by positioning. The local grating sheets are printed with three-dimensional images and other images by flat offset printing. The printed products are made into local grating packaging products (boxes) by die-cutting, separation, box gluing and other processes.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a mosaic partial grating roller, characterized in that: The inlaid partial grating roller comprises a base roller, the outer surface of the base roller is provided with a groove, a grating block is arranged in the groove, and the grating block is inlaid in the groove through a metal glue layer; the shape and size of the grating block correspond to the groove; the surface of the grating block and the outer surface of the base roller are on the same arc surface; a scanning positioning point is arranged at the edge of the outer surface of the base roller corresponding to the position of the grating block; the base roller is provided with an outer roller, an inner roller and a cooling water inlet and outlet pipe in sequence from the outside to the inside, a cooling water circulation pipe is arranged between the outer roller and the inner roller, the groove is arranged on the outer surface of the outer roller; the wall thickness of the outer roller is 18-25mm, and the depth of the groove is 2 / 3-3 / 4 of the wall thickness of the outer roller; The preparation method comprises the following steps: opening a groove corresponding to the shape and size of the grating block on the outer surface of the outer roller of the base roller, adding metal glue into the groove, installing the grating block in the groove, and tightly bonding the grating block to the outer surface of the base roller under the action of the metal glue to form an inlaid local grating roller; the grating block is prepared by a grating sleeve roller, the outer surface of the grating sleeve roller is consistent with the outer surface of the base roller, and the grating block corresponding to the specification and shape of the groove is removed from the grating sleeve roller according to the specification and shape of the groove on the base roller; the wall thickness of the grating sleeve roller should ensure that the removed grating block is on the same arc surface as the outer surface of the base roller after being installed in the groove.

2. A local grating roller product, characterized in that: The product is prepared by using an inlaid partial grating roller; the inlaid partial grating roller comprises a base roller, the outer surface of the base roller is provided with a groove, a grating block is arranged in the groove, and the grating block is inlaid in the groove through a metal glue layer; the shape and size of the grating block correspond to the groove; the surface of the grating block and the outer surface of the base roller are on the same arc surface; a scanning positioning point is arranged at the edge of the outer surface of the base roller corresponding to the position of the grating block; the base roller is provided with an outer roller, an inner roller and a cooling water inlet and outlet pipe in sequence from the outside to the inside, a cooling water circulation pipe is arranged between the outer roller and the inner roller, and the groove is arranged on the outer surface of the outer roller; the wall thickness of the outer roller is 18-25mm, and the depth of the groove is 2 / 3-3 / 4 of the wall thickness of the outer roller.

3. A partial grating roller product as claimed in claim 2, characterized in that: The partial grating roller product is made of thermoplastic material as raw material and is prepared by using a partial grating roller through pressing, coating and hot embossing processes.

4. A partial grating roller product as claimed in claim 2, characterized in that: The local grating roller product includes a grating part and a non-grating part, the back of the grating part is printed with a three-dimensional dislocated image, and the non-grating part includes one or more of a glossy surface, a frosted surface or a holographic microstructure. When the non-grating part is a glossy surface, other images different from the three-dimensional dislocated image are printed on its back.

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