CN204894103U

CN204894103U - Rubber cutter mould is cut to part

Info

Publication number: CN204894103U
Application number: CN201520243713.0U
Authority: CN
Inventors: 夏江贵
Original assignee: Kunshan Xian Jie Precision Electronics Corp Ltd
Current assignee: Kunshan Xian Jie Precision Electronics Corp Ltd
Priority date: 2015-04-21
Filing date: 2015-04-21
Publication date: 2015-12-23
Anticipated expiration: 2025-04-21

Abstract

The utility model relates to a rubber cutter mould is cut to part, include the template, be located the positive first cutter of template and locating the second cutter of first cutter one side, the second cutter for blunt knife and its stretch out in the positive height of template is less than first cutter. The utility model discloses can be in a cross cutting through first cutter shaping wheat pulling -on piece edge, through second cutter shaping gum profile, not only production efficiency high but also can guarantee the precision again.

Description

Partial cut glue cutting die

[technical field]

The utility model relates to technical field of mold, particularly a kind of processing cutting die of efficient accurately processing local back adhesive product.

[background technology]

Die cutting product is very wide in the every field application of electron trade, mobile phone. digital camera. and panel computer. automobile industries etc. all need to use cross cutting, and answer customer demand portioned product need do local back adhesive and full gum.In die-cutting production process, local back adhesive production difficulty is more difficult than full gum, and production efficiency is lower.

As shown in Figure 1 and Figure 2, product comprises the mylar film 11, gum 12 and the base stock 13 that attach successively, and product draws by wheat, the edge of 11 and the edge of gum 12 inconsistent, processing is in the prior art generally the mode of one-shot forming two panels, specifically has two kinds of modes:

1. the first, first on base stock, paste two independently gums, stick mylar film after tearing the facial tissue of gum off, then cross cutting goes out profile needed for mylar film, and cutting die does not cut off base stock.The precision of this mode when pasting gum strip is difficult to ensure, qualification rate is low.

2. the second, first pastes whole gum, then cuts out gum profile and locating hole together with facial tissue on base stock, removes facial tissue and scrap rubber and sticks mylar film again, finally with locating hole for benchmark cuts out profile needed for mylar film, cutting die does not cut off base stock.This mode cross cutting needs two steps, although precision is higher, efficiency is not high.

Therefore, be necessary that improvement cross cutting instrument solves the problems referred to above.

[utility model content]

Main purpose of the present utility model is the processing cutting die providing a kind of efficient accurately processing local back adhesive product.

The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of partial cut glue cutting die, comprise template, be positioned at first cutting knife in described template front and be located at the second cutting knife of described first cutting knife side, described second cutting knife be blunt knife and its height stretching out in described template front lower than described first cutting knife.

Concrete, described second cutting knife is through described template and a substrate is fixed at its rear portion, and described template back surface is fixed in described substrate activity.

Concrete, described second cutting knife rear portion is provided with the identical and location that rear surface the is parallel to each other foot of a pair gradient, and sufficient rear surface, described location is wider than the anterior thickness of described second cutting knife, and described substrate front side is oblique inwardly offers the accepting groove coordinating described location foot.

Concrete, the gradient between sufficient rear surface, described location and the described second cutting knife knife edge is less than 1: 1.

Concrete, described substrate and described template are fixed by least 2 screws, and described substrate offers the mounting hole for wearing screw, and described mounting hole length direction is along described second cutting knife direction.

Concrete, described template back surface offers the guiding groove being parallel to the second cutting knife, and described substrate front side is provided with the guiding convex ridge coordinating described guiding groove.

Compared with prior art, the beneficial effect of the utility model partial cut glue cutting die is:

1, the utility model can pass through the first shaping mylar film edge of cutting knife in a cross cutting, and by the shaping gum profile of the second cutting knife, not only production efficiency is high but also can ensure precision again;

2, the second cutting knife adopts blunt knife, can not damage mylar film outer surface, making product appearance intact when being broken by gum by contact mylar film;

3, the second cutting knife is the mechanism of adjustable overhang, can adjust according to the actual conditions scene of mylar film and gum thickness;

4, the vertical overhang of the second cutting knife is by the horizontal position adjustment of substrate, is coordinated the effect that can play and amplify adjustment amount, overhang is controlled more accurate by gradient;

5, can guarantee that relative displacement is between the two only along a direction with ditch slot fit between template and substrate, make the overhang of the second cutting knife and both relative shift upper be linear relationship accurately.

[accompanying drawing explanation]

Fig. 1 is the front schematic view of single die cutting product;

Fig. 2 is the cross-sectional schematic of die cutting product slice state;

Fig. 3 is the utility model partial cut glue pattern plate Facad structure figure;

Fig. 4 is the utility model partial cut matrix plate Facad structure figure;

Fig. 5 is the sectional view of A-A position in Fig. 3;

Fig. 6 is the sectional view in one of the states of B-B position in Fig. 3;

Fig. 7 is the sectional view in another state of B-B position in Fig. 3.

Numeral in figure:

11-mylar film, 12-gum, 13-base stock, 14-release liners;

21-template, 211-guiding groove, 22-first cutting knife, 23-second cutting knife, 231-locates foot, and 24-substrate, 241-accepting groove, 242-mounting hole, 243-guides convex ridge, 25-screw.

[detailed description of the invention]

Below in conjunction with specific embodiment, the utility model is described in further detail.

As shown in Figures 3 to 5, a kind of partial cut glue cutting die of the present utility model, comprise template 21, be positioned at first cutting knife 22 in template 21 front, the substrate 24 at template 21 back side is fixed in activity, the second cutting knife 23 of the first cutting knife 22 side is located at through template 21, second cutting knife 23 be straight type blunt knife and its height stretching out in template 21 front lower than the first cutting knife 22, the both sides of each second cutting knife 23 are respectively provided with a location foot 231, the rear surface of two location foots 231 is parallel to each other and the edge tilted of relative second cutting knife 23, the rear surface of location foot 231 is wider than the anterior thickness of the second cutting knife 23, substrate 24 front offers the accepting groove 241 for coordinating location foot 231.This cutting die cuts off mylar film 11 by the first cutting knife 22, breaks gum 12 by the second cutting knife 23 interval mylar film 11, makes local have the product one-shot forming of glue, and not only production efficiency is high but also can ensure precision again; Because the second cutting knife 23 is blunt knife, can control to break the dynamics of gum 12 and be unlikely to make mylar film 11 occur impression, making product appearance intact; Second cutting knife 23 can regulate overhang by substrate 24 at the horizontal level at template 21 rear, makes the relative position of the first cutting knife 22 and the second cutting knife 23 meet the actual conditions of each layer thickness of product to be cut.

As shown in Fig. 4, Fig. 6, Fig. 7, substrate 24 is fixed by two screws 25 with template 21, and substrate 24 offers the mounting hole 242 for wearing screw 25, mounting hole 242 length direction is along the second cutting knife 23 direction.Because on substrate, 24 exist mounting hole 242, when substrate 24 and template 21 can relative misalignment certain positions, meet the needs of adjustment second cutting knife 23 overhang.

As shown in Figure 4, Figure 5, template 21 back side offers the guiding groove 211 being parallel to the second cutting knife 23, and substrate 24 front is provided with the guiding convex ridge 243 coordinating guiding groove 211.Only determine that the precision that substrate 24 and template 21 adjusts along the second cutting knife 23 direction is not accurate enough with screw 25, coordinating to improve and adjust side direction precision by guiding groove 211 and guiding convex ridge 243.

As shown in Figure 6, Figure 7, the gradient between foot 231 rear surfaces, location and second cutting knife 23 knife edge is 1: 2.Like this when substrate 24 moves horizontally 1 parasang relative to template 21, longitudinal overhang of the second cutting knife 23 only moves 0.5 parasang, and the adjustment of the longitudinal overhang of the second cutting knife 23 can be made so more accurate.

As shown in Figure 5, before cross cutting, after first tearing the surperficial facial tissue of gum 12 off, stick a release liners 14 needing gum 12 surface portion cut off, last all outer surface sticks mylar film 11 comprising release liners 14 and gum 12 again, make mylar film 11 1 face up and be placed in below cutting die; In trial cut, mixed up the outreach of the second cutting knife 23 by the relative position between template 21 and substrate 24, template 21 and substrate 24 are finally fixed by screw 25; During formal cross cutting, cutting die presses down the first cutting knife 22 and at least cuts off redundance in mylar film 11, second cutting knife 23 is oppressed on the mylar film 11 above required gum 12 edge, and the pressure of the second cutting knife 23 makes gum 12 to occur weaker waste material edge through mylar film 11 and release liners 14; Release liners 14 is peeled off by manual mode by the material strip that cross cutting completes, unnecessary gum 12 can be bonded in release liners 14 and separate together thereupon, and unnecessary mylar film 11 is owing to disconnecting with useful part, will naturally drop, so only need can form product as Fig. 2 through a cross cutting, not only processing fast, and precision is very high.

Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims

1. a partial cut glue cutting die, it is characterized in that: comprise template, be positioned at first cutting knife in described template front and be located at the second cutting knife of described first cutting knife side, described second cutting knife be blunt knife and its height stretching out in described template front lower than described first cutting knife.

2. partial cut glue cutting die according to claim 1, is characterized in that: described second cutting knife is through described template and a substrate is fixed at its rear portion, and described template back surface is fixed in described substrate activity.

3. partial cut glue cutting die according to claim 2, it is characterized in that: described second cutting knife rear portion is provided with the identical and location that rear surface the is parallel to each other foot of a pair gradient, sufficient rear surface, described location is wider than the anterior thickness of described second cutting knife, and described substrate front side is oblique inwardly offers the accepting groove coordinating described location foot.

4. partial cut glue cutting die according to claim 3, is characterized in that: the gradient between sufficient rear surface, described location and the described second cutting knife knife edge is less than 1:1.

5. partial cut glue cutting die according to claim 3, it is characterized in that: described substrate and described template are fixed by least 2 screws, described substrate offers the mounting hole for wearing screw, and described mounting hole length direction is along described second cutting knife direction.

6. partial cut glue cutting die according to claim 5, is characterized in that: described template back surface offers the guiding groove being parallel to the second cutting knife, and described substrate front side is provided with the guiding convex ridge coordinating described guiding groove.