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Corner punching die of door plate of mailbox

A technology of letter box and door panel, applied in the field of letter box production, can solve the problem of uneven seams of door panels, and achieve the effect of neat seams and simple structure

Pending Publication Date: 2019-04-26
湖北易宝通智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a punching angle die for the door panel of the letter box in order to solve the problem of uneven seams of the door panels during the production of the letter box.

Method used

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  • Corner punching die of door plate of mailbox
  • Corner punching die of door plate of mailbox
  • Corner punching die of door plate of mailbox

Examples

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Embodiment Construction

[0011] see Figure 1-4 , the present embodiment includes a die and a punch, the die includes a base 1, two positioning columns 2 are arranged on the upper edge of the base 1, a mold base 3 is mounted on the base 1 through bolts, and three mold bases 3 are provided with Locating pin 4, die hole 5 is arranged in the middle of mold base 3, and die hole 5 is generally rectangular, and wherein one angle is provided with the oblique section A51 that connects in sequence, straight section A52, straight section B53, oblique section B54, straight section C55; The punch includes a base 6, on which a mold core 8 is mounted. The shape of the mold core 8 is exactly the same as that of the die hole 5. The mold core 8 is covered with a cover plate 10, and the cover plate 10 is provided with three positioning pin holes 11, and the pins The positions of the holes 11 are in one-to-one correspondence with the positioning pins 4, and the cover plate 10 is connected with the mold core 8 through th...

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Abstract

The invention relates to the field of mailbox production, in particular to a corner punching die of a door plate of a mailbox. The corner punching die comprises a concave die and a convex die, and ischaracterized in that the concave die comprises a base; two locating columns are arranged on the upper edge of the base; a die seat is mounted on the base through bolts and is provided with three locating pins; a die hole is formed in the middle of the die seat and is generally rectangular, and an inclined segment A, a straight segment A, a straight segment B, an inclined segment B and a straightsegment C which are connected in sequence are arranged at one corner; the convex die comprises a base, a die core is mounted on the base, the shape of the die core is completely the same as that of the die hole, and the outer portion of the die core is sleeved with a sleeve plate; three locating pin holes are formed in the sleeve plate, and the positions of the pin holes are in one-to-one correspondence to those of the locating pins; the sleeve plate is connected with the die core through elastic pads; and locating column sleeves are further arranged on the base and are matched with the locating columns. The corner punching die is suitable for mailbox production equipment.

Description

technical field [0001] The invention relates to the field of letter box production, in particular to a punching angle die for the door panel of the letter box. Background technique [0002] At present, the letter box is made of several thin steel plates to form a box body and a box door, which are integrated by riveting or welding. The general door panels are directly bent by sheet metal and then spliced, which has the problem of uneven seams. Contents of the invention [0003] The purpose of the present invention is to provide a punching angle die for the door panel of the letter box to solve the problem that the door panels of the letter box are not evenly jointed. [0004] The specific solution of the present invention is: a punching angle mold for the door panel of the letter box, which includes a die and a punch, the die includes a base, two positioning columns are arranged on the upper edge of the base, and the base is equipped with a die base through bolts, There a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D28/14
CPCB21D28/14
Inventor 吴友刚
Owner 湖北易宝通智能科技有限公司
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