CN212602303U

CN212602303U - Non-space cutting die

Info

Publication number: CN212602303U
Application number: CN202020544023.XU
Authority: CN
Inventors: 王文成
Original assignee: Suzhou City Tengyi Technology Co ltd
Current assignee: Suzhou City Tengyi Technology Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-02-26
Anticipated expiration: 2030-04-14

Abstract

The utility model belongs to the technical field of plastic film cuts processing, a no interval blank cutting die is related to, including last mould and lower mould, it includes overlapping line blade point and sideline blade point along the integer multiple product benchmark width that staggers to go up the mould, overlapping line blade point extends along the direction of perpendicular to feeding direction, the sideline blade point falls into two parts about mutually independent, and each part all extends along feeding direction. The cutting die can guarantee the die cutting quality of products on the premise of saving the material belt, and has important significance for cost saving of enterprises.

Description

Non-space cutting die

Technical Field

The utility model relates to a plastic film cuts processing technology field, in particular to no interval blank cutting die.

Background

In electronic products, thin film products are used for covering so as to achieve the purposes of dust prevention, insulation and the like, and glue is needed to be used for fixing the thin films. The film product delivered from factory is generally composed of a back film, an adhesive film and a protective film.

As shown in fig. 1, a general film cutting die directly designs the shape of a die cutting blade 11 according to the final patch structure, so that one product is formed by one cutting. However, during processing, a small space 12 is always left between adjacent products to prevent overlapping and cutting of front and rear product ranges, so that raw materials in the space 12 are wasted. This distance 12 cannot be set too small, otherwise waste material will be carried away by the blade during the die cutting process, which could affect the formation of other products. In addition, if the product itself is narrow, the waste portion will occupy a large proportion of the material strip, which seriously affects the cost saving.

There is therefore a need for an improved cutting die to avoid the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-sided cross cutting equipment can guarantee the cross cutting quality of product under the prerequisite of saving the material area.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the non-space cutting die comprises an upper die and a lower die, wherein the upper die comprises an overlapped line blade and a sideline blade which are staggered along the feeding direction by integral multiple of the product reference width, the overlapped line blade extends along the direction perpendicular to the feeding direction, the sideline blade is divided into a left part and a right part which are independent of each other, and each part extends along the feeding direction.

Specifically, the upper die is provided with a plurality of groups of positioning holes, the positioning holes of each group are spaced by integral multiples of the product reference width, and the lower die is provided with positioning protrusions corresponding to the positioning holes one to one.

Specifically, two ends of the sideline blade are provided with extension blades which are deviated outwards towards one side close to the edge of the upper die.

Adopt above-mentioned technical scheme, the utility model discloses technical scheme's beneficial effect is:

the cutting die can guarantee the die cutting quality of products on the premise of saving the material belt, and has important significance for cost saving of enterprises.

Drawings

FIG. 1 is a top view of a prior art cutting die;

FIG. 2 is a partial cross-sectional view of an exemplary gapless shear die;

FIG. 3 is a plan view of an upper die of an exemplary gapless shear die;

fig. 4 is a partially enlarged view of a position a in fig. 3.

The figures in the drawings represent:

11-blade, 12-pitch;

2-upper die, 21-overlapping line blade, 22-sideline blade and 23-positioning hole;

3-lower die, 31-positioning projection.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in fig. 2 and 3, the utility model discloses a there is not blank cutting die of interval, including last mould 2 and lower mould 3, go up mould 2 and include along the overlapping line blade point 21 and the sideline blade point 22 of the staggered integral multiple product benchmark width of direction of feed, overlapping line blade point 21 extends along the direction of perpendicular to direction of feed, and sideline blade point 22 falls into two parts about mutually independent, and each part all extends along direction of feed. The products displayed in the embodiment are strip-shaped, so that the reference width of the products is equal to the actual width of the products; however, the product reference width is not necessarily equal to the actual width of the product, but is the minimum distance required by the front and back side by side, so that at least one edge line is overlapped, and the overlapped edge line is cut by the overlapped line blade 21. However, the overlapped line blade 21 is not a closed structure and is only responsible for cutting out partial outlines in the product, and finally, the outlines of two sides of the product are cut out through the edge line blade 22, so that the complete outline is formed through twice die cutting, and the blade is prevented from carrying the product film. Because of the close proximity of the shapes of adjacent products so formed, it can be ensured that waste of the strip of material is minimised. Therefore, the cutting die can ensure the die cutting quality of products on the premise of saving the material belt, and has important significance for cost saving of enterprises.

As shown in fig. 2 and 3, the upper die 2 is provided with a plurality of sets of positioning cavities 23, each set of positioning cavities 23 is spaced by an integral multiple of the product reference width, and the lower die 3 is provided with positioning protrusions 31 corresponding to the positioning cavities 23 one to one. The positioning holes on two sides of the material belt can be cut according to the standard width of a product, so that the feeding distance of the material belt can be accurately limited by using the positioning protrusions 31, and the position where the overlapped line blade 21 is cut in continuous die cutting is just the other side line of the product when the die cutting is carried out again.

As shown in fig. 4, the two ends of the sideline blade 22 are provided with extended blades 221 that are outwardly biased toward the side near the edge of the upper die 2. The extension blade 221 allows the section of the strip to extend in the direction of the waste material, avoiding the influence on the useful part during stripping.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a no interval blank cutting die, includes mould and lower mould, its characterized in that: the upper die comprises an overlapped line blade and a sideline blade which are staggered in integral multiple of the product reference width along the feeding direction, the overlapped line blade extends along the direction perpendicular to the feeding direction, the sideline blade is divided into a left part and a right part which are independent of each other, and each part extends along the feeding direction.

2. The gapless blanking die of claim 1, wherein: the upper die is provided with a plurality of groups of positioning holes, each group of positioning holes are spaced by integral multiples of the product reference width, and the lower die is provided with positioning bulges which correspond to the positioning holes one to one.

3. The gapless blanking die of claim 1, wherein: and two ends of the sideline blade are provided with extended blades which are deviated outwards towards one side close to the edge of the upper die.