CN203253793U

CN203253793U - Improved blanking die of bicycle chain guard connecting piece

Info

Publication number: CN203253793U
Application number: CN 201320262119
Authority: CN
Inventors: 周春勇
Original assignee: KUNSHAN SMALL DINOSAUR CHILDREN'S PRODUCTS CO Ltd
Current assignee: KUNSHAN SMALL DINOSAUR CHILDREN'S PRODUCTS CO Ltd
Priority date: 2013-05-14
Filing date: 2013-05-14
Publication date: 2013-10-30
Anticipated expiration: 2023-05-14

Abstract

The utility model discloses an improved blanking die of a bicycle chain guard connecting piece. The improved blanking die comprises a die body and a die knife edge, wherein the die knife edge is arranged in the middle of the die body and comprises a first omega-shaped chain guard connecting piece knife edge and a second omega-shaped chain guard connecting piece knife edge. One lead pin of the first omega-shaped chain guard connecting piece knife edge is placed in an inner circular arc of the second omega-shaped chain guard connecting piece knife edge. By means of the mode, the work efficiency can be improved, and the production cost can be reduced.

Description

The blanking die of a kind of Modified type bicycle chain guard contact pin

Technical field

The utility model relates to bicycle manufacturing technology field, particularly relates to the blanking die of a kind of Modified type bicycle chain guard contact pin.

Background technology

In the prior art, the chain guard tab construction formula that is used on the bicycle is an open circles arcuate structure, adopting diel to add man-hour, it generally is single blanking, thereby the assurance product quality, but working (machining) efficiency is low, wherein substantially does waste disposal after the circular arc material punching press of chain guard contact pin inner ring, so raw material availability is low, also increased product cost simultaneously.

The utility model content

The technical problem that the utility model mainly solves provides the blanking die of a kind of Modified type bicycle chain guard contact pin, can increase work efficiency, and reduces production costs.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the blanking die that the contact pin of a kind of Modified type bicycle chain guard is provided, comprise: die ontology and the mould edge of a knife, the described mould edge of a knife is arranged on the middle part of die ontology, the described mould edge of a knife comprises first " Ω " type chain guard contact pin edge of a knife and second " Ω " type chain guard contact pin edge of a knife, and a pin of described first " Ω " type chain guard contact pin edge of a knife is placed in the interior circular arc of second " Ω " type chain guard contact pin edge of a knife.

In preferred embodiment of the utility model, described die ontology comprises upper die and lower die, and the described mould edge of a knife is separately positioned on the middle part of patrix and the middle part of counterdie.

The beneficial effects of the utility model are: 2 chain guard contact pin of blanking of blanking die of the utility model Modified type bicycle chain guard contact pin, improved operating efficiency and availability ratio of the armor plate.

Description of drawings

Fig. 1 is the edge of a knife distributed architecture signal of the blanking die of the utility model Modified type bicycle chain guard contact pin

Figure;

Fig. 2 is the structural representation of the blanking die of the utility model Modified type bicycle chain guard contact pin;

The mark of each parts is as follows in the accompanying drawing: 1, die ontology; 2, the mould edge of a knife; 10, patrix; 11, counterdie; 20, first " Ω " type chain guard contact pin edge of a knife; 21, second " Ω " type chain guard contact pin edge of a knife; 200, pin; 210, interior circular arc.

The specific embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection domain of the present utility model is made more explicit defining.

See also Fig. 1 and Fig. 2, the utility model embodiment comprises: the blanking die of a kind of Modified type bicycle chain guard contact pin, comprise: die ontology 1 and the mould edge of a knife 2, the mould edge of a knife 2 is arranged on the middle part of die ontology 1, the mould edge of a knife 2 comprises that a pin 200 of first " Ω " type chain guard contact pin edge of a knife 20 and second " Ω " type chain guard contact pin edge of a knife 21, the first " Ω " type chain guard contact pin edge of a knife 20 is placed in the interior circular arc 210 of second " Ω " type chain guard contact pin edge of a knife 21.

Furtherly, described die ontology 1 comprises patrix 10 and counterdie 11, and the mould edge of a knife 2 is separately positioned on the middle part of patrix 10 and the middle part of counterdie 11.

The blanking die of the utility model Modified type bicycle chain guard contact pin in the course of the work, raw material are cut into than larger a little the strip of the width of chain guard contact pin, or directly be customized to the coiled tape of one fixed width, strip is placed between patrix 10 and the counterdie 11 and to strip locates, wherein 2 pairs of strips of the mould edge of a knife are sheared punching press, finish the efficiency operation mode of two product outputs of a punching press, remaining waste material is also few on the strip, has saved cost of material.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. the blanking die of Modified type bicycle chain guard contact pin, it is characterized in that, comprise: die ontology and the mould edge of a knife, the described mould edge of a knife is arranged on the middle part of die ontology, the described mould edge of a knife comprises first " Ω " type chain guard contact pin edge of a knife and second " Ω " type chain guard contact pin edge of a knife, and a pin of described first " Ω " type chain guard contact pin edge of a knife is placed in the interior circular arc of second " Ω " type chain guard contact pin edge of a knife.

2. the blanking die of Modified type bicycle chain guard according to claim 1 contact pin, it is characterized in that: described die ontology comprises upper die and lower die, the described mould edge of a knife is separately positioned on the middle part of patrix and the middle part of counterdie.