CN201685413U

CN201685413U - Shearing tool for plastic part water gaps

Info

Publication number: CN201685413U
Application number: CN2010201940806U
Authority: CN
Inventors: 黄佰胜
Original assignee: SHENZHEN NANHE HUAYI PLASTIC PRODUCT CO Ltd
Current assignee: SHENZHEN NANHE HUAYI PLASTIC PRODUCT CO Ltd
Priority date: 2010-05-18
Filing date: 2010-05-18
Publication date: 2010-12-29
Anticipated expiration: 2020-05-18

Abstract

The utility model discloses a shearing tool for plastic part water gaps, which comprises a lifting mechanism, a shear tooling and a heater. The shear tooling comprises an upper cutting edge and a lower cutting edge, the lower cutting edge is fixedly mounted on a positioning base, the lifting mechanism drives the upper cutting edge to move up and down vertically, the upper cutting edge matches with the lower cutting edge when descending in place, and the heater comprises a heating plate which is fixed at the upper cutting edge. The shearing tool can not cause whitening of plastic part water gaps, and can increase pass rate of products, reduce labor intensity and improve field environment. Compared with the conventional method which needs three operators to shear water gaps with cutting pliers simultaneously and has the rejection rate of 10%, the shearing tool for plastic part water gaps only can be operated to shear water gaps with one operator only and has zero rejection rate.

Description

Moulding mouth of a river cutting implement

Technical field

The utility model belongs to a kind of cutting implement, specifically, relates to a kind of design feature according to transparent injection-molded parts and designs, and can shear the instrument at the moulding mouth of a river easily.

Background technology

Because transparent injected-moulded product, as picture frame etc., than higher, therefore, after injection moulding is finished, must in time shear the mouth of a river and stick diaphragm on the surface to appearance requirement, defectives such as the surface scratches appear to prevent product.Present processing method is that the operator utilizes cutting nippers manually to shear the mouth of a river, this makes this kind cutting method can be subjected to artificial factor, position, the product mouth of a river might occur turns white or shears problem not in place, therefore, there is the defective that scrappage is high and the operator is tired easily in existing cutting method.Certainly, also can utilize punch press to shear the mouth of a river, but bring a lot of inconvenience for injection moulding board scene, therefore also be difficult for adopting because the punch press volume is crossed conference.

The utility model content

The purpose of this utility model provides the instrument at a kind of automatic shearing moulding mouth of a river.

The technical scheme that the utility model adopted is: a kind of moulding mouth of a river cutting implement comprises elevating mechanism, shears frock and heater; Described shearing frock comprises the edge of a knife and the following edge of a knife, and the described edge of a knife down is packed on the positioning seat, and described elevating mechanism drive is gone up edge of a knife in the vertical direction and moved up and down, and the described upward edge of a knife is involutory with the following edge of a knife when decline puts in place; Described heater comprises heating plate, and described heating plate is fixed on the edge of a knife.

Preferably, described heater comprises two heating plates, and two heating plates are separately fixed on the forward and backward side of the edge of a knife.

Preferably, described elevating mechanism comprises gear and tooth bar, and described tooth bar is installed on the fixed body, and the end of described tooth bar is fixed with guide post, and described guide post moves in guide thimble; The described edge of a knife of going up is packed on the guide post; Described rack and pinion engagement, a driving handle is connected on the described gear.

Preferably, the top of described tooth bar is fixed on the described fixed body by back-moving spring.

Preferably, described positioning seat is provided with the pilot hole that is directed to vertical direction, and the described edge of a knife of going up has the lead that cooperates with pilot hole.

The beneficial effects of the utility model are: moulding described in the utility model mouth of a river cutting implement designs according to the design feature of transparent injection-molded parts, the shear product mouth of a river easily, and can not cause the product mouth of a river to be turned white, can improve product percent of pass, reduce labor intensity, and improve site environment.The method that the operator shears the mouth of a river by cutting nippers generally needs 3 people to shear the mouth of a river simultaneously, and scrappage is 10%, and moulding described in the utility model only needs 1 people operate and shears the mouth of a river, can realize that product zero scraps.

Description of drawings

Fig. 1 is the structural representation of moulding described in the utility model mouth of a river cutting implement.

The specific embodiment

As shown in Figure 1, moulding described in the utility model mouth of a river cutting implement comprises elevating mechanism a, shears frock b and heater c.Described shearing frock b comprises edge of a knife b2 and following edge of a knife b3, described edge of a knife b3 down is packed on the positioning seat b1, the described edge of a knife b2 that goes up is packed on the elevating mechanism a, move up and down by edge of a knife b2 in the vertical direction in the elevating mechanism a drive, and go up edge of a knife b2 when decline puts in place with following edge of a knife b3 the involutory and shearing moulding mouth of a river.Described heater c comprises heating plate c2 and power connection c1, and described heating plate c2 is fixed on the edge of a knife b2, and in the present embodiment, described heater c comprises two heating plate c2, is separately fixed on the forward and backward side of edge of a knife b2.By edge of a knife b2 in the heater c heating, help fitly cutting off position, the mouth of a river, and can not cause the position, the mouth of a river of moulding to be turned white.

Described elevating mechanism a can adopt structure habitual in the mechanical field, and moving up and down of edge of a knife b2 gone up in its effect just control.In the present embodiment, described elevating mechanism comprises gear a2 and tooth bar a3, and described tooth bar a3 is installed on any suitable fixed body, and the end of described tooth bar a3 is fixed with guide post a5, described guide post a5 moves in guide thimble a6, and the guide direction of guide thimble a6 is a vertical direction.The described edge of a knife b2 that goes up is packed on the guide post a5.Described tooth bar a3 and gear a2 engagement, the driving handle a1 that is connected on the described gear a2, when rotating drive handle a1, the described edge of a knife b2 that goes up just moves up and down under the mating reaction of gear a2 and tooth bar a3, shears and homing action thereby finish.For edge of a knife b2 can automatically upwards be resetted, the top of described tooth bar a3 can be fixed on the fixed body by back-moving spring a4, like this, after finishing shearing manipulation, unclamps driving handle a1 and can finish reset operation automatically.

In order to make edge of a knife b2 accurately carry out involutory with following edge of a knife b3, described positioning seat b1 is provided with vertical pilot hole, the described edge of a knife b2 that goes up has the lead that cooperates with pilot hole, when edge of a knife b2 moves down on elevating mechanism drives, described lead will insert in the pilot hole, and finish involutory accurately with following edge of a knife b3 under the effect of pilot hole.

During shearing, treat that cutting member d is placed on the holder b1, and the root at the position, the mouth of a river of need shearing is positioned at down on the edge of a knife b3, when last edge of a knife b2 moves into place, just position, mouth of a river integral body can be excised like this.

Being the utility model preferred embodiment only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.

Claims

1. a moulding mouth of a river cutting implement is characterized in that: comprise elevating mechanism, shear frock and heater; Described shearing frock comprises the edge of a knife and the following edge of a knife, and the described edge of a knife down is packed on the positioning seat, and described elevating mechanism drive is gone up edge of a knife in the vertical direction and moved up and down, and the described upward edge of a knife is involutory with the following edge of a knife when decline puts in place; Described heater comprises heating plate, and described heating plate is fixed on the edge of a knife.

2. moulding according to claim 1 mouth of a river cutting implement is characterized in that: described heater comprises two heating plates, and two heating plates are separately fixed on the forward and backward side of the edge of a knife.

3. moulding according to claim 1 mouth of a river cutting implement, it is characterized in that: described elevating mechanism comprises gear and tooth bar, and described tooth bar is installed on the fixed body, and the end of described tooth bar is fixed with guide post, and described guide post moves in guide thimble; The described edge of a knife of going up is packed on the guide post; Described rack and pinion engagement, a driving handle is connected on the described gear.

4. moulding according to claim 3 mouth of a river cutting implement, it is characterized in that: the top of described tooth bar is fixed on the described fixed body by back-moving spring.

5. according to each described moulding mouth of a river cutting implement in the claim 1 to 4, it is characterized in that: described positioning seat is provided with the pilot hole that is directed to vertical direction, and the described edge of a knife of going up has the lead that cooperates with pilot hole.