CN201922482U

CN201922482U - Cutting die for die-cutting rubber foot pad

Info

Publication number: CN201922482U
Application number: CN2010206708389U
Authority: CN
Inventors: 谢红星
Original assignee: KUNSHAN LAIBAO ELECTRONIC MATERIAL CO Ltd
Current assignee: KUNSHAN LAIBAO ELECTRONIC MATERIAL CO Ltd
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2011-08-10
Anticipated expiration: 2020-12-21

Abstract

The utility model discloses a cutting die for die-cutting a rubber foot pad, which comprises a die carrier and a cutting tool, wherein the cutting tool is arranged on the die carrier and extends upwards from the surface of the die carrier, a cutting edge of the cutting tool is upward, the shape of the cutting tool is correspondingly formed according to the shape of the rubber foot pad, and a back of the cutting tool is movably embedded in the die carrier and can horizontally move in the die carrier within a certain range in all directions. Therefore, when the cutting die is used for die-cutting the rubber foot pad, the cutting tool can be automatically correspondingly matched with the rubber foot pad with a certain elasticity by horizontally moving and adjusting the position of the cutting tool, a rubber foot pad finished product obtained by die-cutting basically has no boss or notched edge, and the qualification rate of products is greatly upgraded.

Description

The die-cut cutting die of using of a kind of rubber mat

Technical field

The utility model relates to a kind of cutting die, is specifically related to the die-cut cutting die of using of a kind of rubber mat

Background technology

Many household electrical appliance such as electric cooker or notebook computer etc. all are equipped with rubber mat and play a supportive role on four angles of bottom.This rubber mat is many with circular globoidal structure generally, its manufacturing process is as follows: be the one-body molded rubber substrate of multi-cave mould 3(Fig. 1 of circular globoidal structure by die cavity earlier), the rubber mat 4 that promptly has a plurality of circular globoidal structures on the rubber substrate 3, it is die-cut to adopt the cutting die identical with the geomery of rubber mat 4 that the foot pad on the substrate 34 is carried out, and can make independently many rubber mat finished products.Shown in Fig. 2 and 3, existing rubber mat is die-cut to comprise mould bases 1 ' and cutter 2 ' with cutting die, and the shape of cutter 2 ' is offered according to the geomery correspondence of foot pad 4, and cutter 2 ' is the metalwork that one is made with mould bases 1 '.With the die-cut foot pad 4 of cutting die the time, sometimes because the small displacement of cutter 2 ' and foot pad 4 can cause the foot pad finished product of die-cut gained to have boss 40 or scarce limit 41(Fig. 4), influence the quality of product

Summary of the invention

Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of improved rubber mat the die-cut cutting die of using, and it is more accurate that cutting die is located when die-cut foot pad, and the qualification rate of product is higher.

For solving above technical problem, the utility model is taked following technical scheme:

The die-cut cutting die of using of a kind of rubber mat, comprise mould bases, be arranged on that the surface from described mould bases extends upward and edge of a knife cutter up on the mould bases, the shape of this cutter is offered according to the shape correspondence of rubber mat, the knife back activity of cutter is embedded in mould bases, and the knife back can move horizontally to all directions in mould bases, and the distance range that moves is between 0.2 millimeter～0.5 millimeter.

Preferably, the material of mould bases is wooden, and the material of cutter is a stainless steel.

Because the enforcement of above technical scheme, the utility model compared with prior art has following advantage:

The die-cut cutting die of using of the utility model rubber mat, because cutter is that activity is embedded on mould bases, the knife back of cutter can move horizontally to all directions within the specific limits, when make using the die-cut rubber mat of the utility model cutting die, cutter can be adjusted self-position and have certain flexible rubber mat corresponding matching voluntarily by moving horizontally, the rubber mat finished product that causes die-cut gained does not have boss or scarce limit substantially, and the qualification rate of product greatly promotes.

Description of drawings

The utility model is described in more detail below in conjunction with accompanying drawing and concrete embodiment:

Fig. 1 is for having the rubber substrate schematic perspective view of a plurality of circular cambered surface structure rubber foots pad in the background technology;

Fig. 2 is the die-cut plan structure schematic diagram with cutting die of rubber mat in the prior art;

Fig. 3 be among Fig. 2 A-A to the sectional structure schematic diagram;

Fig. 4 is for having the defective foot pad schematic diagram on boss or scarce limit in the background technology;

Fig. 5 is the die-cut plan structure schematic diagram with cutting die of the utility model rubber mat;

Fig. 6 be among Fig. 5 B-B to the sectional structure schematic diagram;

Wherein: 1,1 ', mould bases; 2,2 ', cutter; 20, the edge of a knife; 21, the knife back; 3, rubber substrate; 4, rubber mat; 40, boss; 41, lack the limit.

The specific embodiment

The utility model is described in more detail below in conjunction with specific embodiment, but be not limited to these embodiment.

Embodiment 1

The present embodiment cutting die is to be used for the rubber mat of die-cut circular globoidal structure.

As illustrated in Figures 5 and 6, according to the die-cut cutting die of using of the rubber mat of present embodiment, comprise mould bases 1, be arranged on that the surface from mould bases 1 extends upward and the edge of a knife 20 cutter 2 up on the mould bases 1, the shape of cutter 2 is offered according to the shape correspondence of rubber mat, the knife back 21 activities of cutter 2 are embedded in mould bases 1, and the knife back 21 can move horizontally to all directions in mould bases 1, and the distance range that moves is in 0.3 millimeter.

Therefore in the present embodiment, the material of mould bases 1 is wooden, and the material of cutter 2 is a stainless steel, and a mould bases 1 is provided with 9 cutters 2, uses the present embodiment cutting die once can die-cut 9 rubber mats.

Rubber mat is the silicon rubber material in the present embodiment, has certain elasticity, earlier one-body molded by hot pressing is the rubber substrate, use the cutting die of offering according to the profile correspondence of foot pad to carry out die-cut again to on-chip foot pad, because the cutter and the mould bases of present embodiment cutting die flexibly connect, cutter can move in the certain limit on mould bases, when using the die-cut rubber mat of present embodiment cutting die, having certain flexibility between cutter and the rubber mat can cooperate voluntarily, therefore can overcome cutter in the prior art stiff and might and foot pad between the problem of displacement takes place, and then can greatly reduce boss and scarce limit phenomenon in the prepared rubber mat, the foot pad product qualified rate is significantly improved.

More than the utility model has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to spiritual essence of the present utility model change or modify, and all should be encompassed in the protection domain of the present utility model

Claims

1. die-cut cutting die of using of rubber mat, comprise mould bases (1), be arranged on described mould bases (1) and go up from the surface of described mould bases (1) and extend upward and the edge of a knife (20) cutter (2) up, the shape of described cutter (2) is offered according to the shape correspondence of rubber mat, it is characterized in that: the knife back (21) activity of described cutter (2) is embedded in described mould bases (1), and the described knife back (21) can move horizontally to all directions in described mould bases (1), and the distance range that moves is between 0.2 millimeter～0.5 millimeter.

2. cutting die according to claim 1 is characterized in that: the material of described mould bases (1) is wooden, and the material of described cutter (2) is a stainless steel.