A relief negative for die cutting

Abstract

The application relates to a die-cutting convex negative plate, characterized by comprising an upper copper plate and a lower copper plate, the upper end surface of the upper copper plate is provided with a negative text pattern, the bottom surface of the upper copper plate is provided with supporting columns at four corners, the supporting columns comprise threaded columns at front sections, smooth columns at middle sections and limiting blocks at ends, the bottom surface of the upper copper plate is provided with threaded holes matched with the threaded columns at the four corners, the four corners of the lower copper plate are provided with guide holes, the guide holes are of variable-diameter structures from top to bottom, the inner diameter of the upper section is in clearance fit with the outer diameter of the supporting columns, the inner diameter of the lower section is larger than the outer diameter of the limiting blocks, the length of the guide hole is larger than the length of the supporting column, a compression spring is sleeved on the supporting column between the upper copper plate and the lower copper plate, the lower section of the guide hole is a threaded hole, a limiting plug is internally installed, the limiting plug is a threaded column, and the distance from the end of the supporting column to the upper end of the threaded column is smaller than the limit compression distance of the compression spring. The application has the advantages of reasonable structure and long service life.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of die cutting embossing negative plate. BACKGROUND

[0002] At present, in the field of packaging box, embossing / embossing process is applied more and more widely, especially medicine packaging box, European Union has passed regulation in 2004 to clearly that except part of prescription drugs that doctors hold and blind people can not touch, the rest of listed drugs are forced to use Braille to mark drug name, dosage form, specification and other information on packaging, China also issued GB / T37105-2018 "Braille on packaging of packaging drugs", which stipulates the requirements and guidelines for the use of Braille on drug labels. Embossing needs to use embossing positive plate (upper plate) and embossing negative plate (lower plate), the current embossing positive plate generally uses copper plate, and the embossing negative plate generally uses resin plate. During production, due to the misalignment of upper and lower plates, crushing phenomenon is easy to occur, and resin plate will deform over time. Once crushing and deformation occur during production, the embossing negative plate needs to be replaced, which will affect production efficiency and increase production cost. SUMMARY

[0003] The purpose of the present application is to provide a kind of die cutting embossing negative plate, which is made of double-layer copper plate, and spring shock absorption is arranged between the two layers of copper plate, so that it is not easy to be crushed and deformed.

[0004] The present application is realized by the following technical scheme:

[0005] That is, a kind of die cutting embossing negative plate, characterized in that it comprises an upper copper plate and a lower copper plate, the upper end surface of the upper copper plate is provided with a negative text pattern, the bottom surface of the upper copper plate is provided with a support column at four corners, the support column comprises a threaded column in the front section, a smooth column in the middle section and a limiting block at the end, the bottom surface of the upper copper plate is provided with a threaded hole matched with the threaded column at four corners, the four corners of the lower copper plate are provided with a guide hole, the guide hole is a variable diameter structure from top to bottom, the inner diameter of the upper section is gap-fitted with the outer diameter of the support column, the inner diameter of the lower section is greater than the outer diameter of the limiting block, the length of the guide hole is greater than the length of the support column, a compression spring is sleeved outside the support column between the upper copper plate and the lower copper plate, the lower section of the guide hole is a threaded hole, and a limiting plug is installed inside, the limiting plug is a threaded column, and the distance from the end of the support column to the upper end of the threaded column is less than the limit compression distance of the compression spring.

[0006] The distance between the upper copper plate and the lower copper plate of the present application is 8mm, the distance from the end of the support column to the upper end of the threaded column is 3-5mm, and the limit compression distance of the compression spring is greater than 5mm, that is, the upper copper plate can move downward 3-5mm under pressure, and the upper copper plate will reset under the compression spring when the pressure disappears.

[0007] The present application sets compression springs between the upper copper plate and the lower copper plate, the upper copper plate will move downward a certain distance under pressure, and the upper copper plate has a buffering process when it is raised, so it is not easy to be damaged.

[0008] The present application has the advantages of reasonable structure and long service life. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present application.

[0010] Figure 2 It is a structural schematic diagram of the A part in Figure 1 .

[0011] As shown in the figure: 1. Lower copper plate; 2. Upper copper plate; 3. Compression spring; 4. Support column; 4-1. Threaded column; 4-2. Smooth column; 4-3. Limiting block; 5. Limiting plug; 6. Guide hole; 7. Threaded hole. DETAILED DESCRIPTION

[0012] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, therefore only serve as examples, and cannot limit the protection scope of the present application. It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by the skilled in the art to which the present application belongs.

[0013] As shown in the figure: 1. Lower copper plate; 2. Upper copper plate; 3. Compression spring; 4. Support column; 4-1. Threaded column; 4-2. Smooth column; 4-3. Limiting block; 5. Limiting plug; 6. Guide hole; 7. Threaded hole. Figure 1 , Figure 2 As shown in the figure: the upper end surface of the upper copper plate 2 is provided with a negative text pattern, the ground 4 corners are provided with threaded holes 7, the threaded holes 7 are blind holes, the lower copper plate 1 corresponding to the threaded holes 7 is provided with guide holes 6 at the 4 corners, the inner diameter of the upper segment hole of the guide hole 6 is smaller than that of the lower segment hole, the lower segment hole is a threaded hole, 4 support columns pass through the guide holes respectively, the threaded column 4-1 of the upper segment is screwed into the threaded hole 7 of the upper copper plate 2, the smooth column 4-2 outside the upper copper plate 2 and the lower copper plate 1 is sleeved with the compression spring 3, the limiting block 4-3 at the end is located in the lower segment hole of the guide hole 6, the limiting plug 5 is also arranged in the lower segment hole of the guide hole 6, the limiting plug 5 and the lower segment hole of the guide hole 6 are screw connected, and the distance between the upper end surface of the limiting plug 5 and the limiting block 4-3 after installation is less than the limit compression distance of the compression spring 3.

[0014] As shown in the figure: 1. Lower copper plate; 2. Upper copper plate; 3. Compression spring; 4. Support column; 4-1. Threaded column; 4-2. Smooth column; 4-3. Limiting block; 5. Limiting plug; 6. Guide hole; 7. Threaded hole. Figure 1 ,

[0015] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A raised negative die-cutting form, characterized in that The application relates to a copper plate structure, which comprises an upper copper plate and a lower copper plate, the upper end surface of the upper copper plate is provided with a negative text pattern, the bottom surface of the upper copper plate is provided with supporting columns at four corners, the supporting columns comprise threaded columns at front sections, smooth columns at middle sections and limiting blocks at tail ends, the bottom surface of the upper copper plate is provided with threaded holes matched with the threaded columns at the four corners, the four corners of the lower copper plate are provided with guide holes, the guide holes are of variable-diameter structures from top to bottom, the inner diameter of the upper section is matched with the outer diameter of the supporting columns with a gap, the inner diameter of the lower section is larger than the outer diameter of the limiting blocks, the length of the guide hole is larger than the length of the supporting column, a compression spring is sleeved on the supporting column between the upper copper plate and the lower copper plate, the lower section of the guide hole is a threaded hole, a limiting plug is internally installed, the limiting plug is a threaded column, and the distance from the tail end of the supporting column to the upper end of the threaded column is smaller than the limit compression distance of the compression spring.

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