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Triangular waste bending and bumping blanking method and strip obtained therefrom

A triangular and strip material technology, which is applied in the direction of casing/cover/support, electrical components, electromechanical devices, etc., can solve the problem that triangular waste cannot be discharged by magnetic rollers, and achieve the effect of improving material utilization and reducing production costs

Active Publication Date: 2018-08-17
NINGBO HONGDA MOTOR DIE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that two triangular scraps will be left on both sides of the current non-overlap blanking strip, and the triangular scraps with smaller base specifications cannot be discharged by magnetic rollers, and propose a strip that will leave two triangular scraps on both sides Triangular scrap bending and bumping blanking method capable of falling automatically and strip obtained therefrom

Method used

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  • Triangular waste bending and bumping blanking method and strip obtained therefrom
  • Triangular waste bending and bumping blanking method and strip obtained therefrom
  • Triangular waste bending and bumping blanking method and strip obtained therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 The triangular scrap bending and punching method of the present invention comprises the following steps:

[0019] 1) Punch out a U-shaped hole and a triangular hole at the front and rear ends of the triangular waste area of ​​the strip, wherein the bottom edge of the triangular hole coincides with the outer base circle of the punching sheet, and the center of the triangular hole is located at the center of the U-shaped hole. On the central axis, and the central axis of the U-shaped hole is consistent with the feeding direction of the strip; the triangular waste left in the triangular cavity by punching the triangular hole is separated from the blanked strip and adhered to the machine tool On the working table, it is defined that along the feeding direction, the triangular waste area punched first is the front end of the strip, and the triangular waste area punched out later is the rear end of the strip;

[0020] 2) Bending the tongue-shaped boss left by the...

Embodiment 2

[0022] Embodiment 2 The strip obtained according to the triangular waste bending and punching method described in Example 1 includes a strip body 1 for punching, and the triangular waste area 14 of the strip body 1 is punched out respectively Out of the U-shaped hole 11 and the triangular hole 12, and the U-shaped hole 11 corresponds to the triangular hole 12 one by one, the tongue-shaped boss 13 of the strip body 1 located at the cavity of the U-shaped hole 11 is turned upward. Flanging; the bottom edge of the triangular hole 12 coincides with the outer base circle 21 of the punching sheet 2, the center of the triangular hole 12 is located on the central axis of the U-shaped hole 11, and the central axis of the U-shaped hole 11 Consistent with the feeding direction of the strip body 1.

[0023] The front end of the triangular waste area of ​​the strip body 1 is symmetrically provided with two U-shaped holes 11, and the rear end of the triangular waste area is symmetrically pr...

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PUM

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Abstract

The invention provides a triangular waste bending, material bumping and blanking method as well as a strip material obtained according to the method. The method comprises the following steps: respectively forming U-shaped holes and triangular holes at the front and rear ends of triangular waste areas of the strip material through blanking; bending tongue-type lug bosses left in mold cavities for blanking of the U-shaped holes in the strip material upward, so as to form erected flanges in the U-shaped holes at the front ends of the triangular waste areas; and after blanking at material dropping stations, bumping the triangular waste left from blanking of the triangular holes at the previous blanking station against the erected flanges in the U-shaped holes at the next blanking station, so as to bump the whole triangular waste out of the rear end of a mold. The strip material comprises a strip material body used for blanking, wherein the U-shaped and the triangular holes are formed in the triangular waste areas of the strip material body through blanking in a one-to-one correspondence manner; and the tongue-type lug bosses, positioned in the U-shaped hole mold cavities, of the strip material body are bent upward to form the flanges. The method provided by the invention has the beneficial effect that the requirement of a relatively small engine base for no-lapping blanking is met, thereby improving the material utilization ratio and reducing the production cost.

Description

technical field [0001] The invention relates to a method for bending, colliding and blanking triangular waste materials and the obtained strips. Background technique [0002] With the country's increasing requirements for energy saving and emission reduction of industrial motors, each enterprise has modified and upgraded industrial motor products. As the market competition continues to intensify, how to save manufacturing costs has become the main means of profitability under the premise of ensuring the performance of the motor. Therefore, many enterprises have changed the original circular industrial motors to cut four sides in shape, and realized the multi-station progressive die feeding without lap blanking process, which saves lap materials, improves material utilization, and reduces production costs. [0003] Use the coil material without edge punching, after punching the product, there will be two triangular wastes on both sides of the strip material. At present, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D35/00H02K5/00
CPCB21D35/001H02K5/00
Inventor 宋红杰徐建凯方毅方定陈毅
Owner NINGBO HONGDA MOTOR DIE