CN210305167U

CN210305167U - Two-step forming edge rolling die

Info

Publication number: CN210305167U
Application number: CN201920892875.5U
Authority: CN
Inventors: 李继针; 王计省; 佘龙飞; 周亚峰
Original assignee: Wuxi Baozhong Technology Co Ltd
Current assignee: Wuxi Baozhong Technology Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-04-14
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a two-step forming edge rolling die, which comprises a first forming die for pre-forming a flitch in a first step and a second forming die for further edge rolling the flitch in a second step, wherein the first forming die comprises a first upper die forming male part and a first lower die forming male part, a semicircular groove is arranged on the first lower die forming male part, a pressure head part of the first upper die forming male part is arranged into a semicircular cylinder surface corresponding to the semicircular groove, a positioning device is arranged on the first lower die forming male part, the flitch is limited by the positioning device, so that the central line of the length direction of the flitch and the central line of the semicircular groove are positioned in the same vertical plane, the second forming die comprises a second upper die forming male part and a second lower die forming male part, a lower semicircular groove is arranged on the second lower die forming male part, guide posts are arranged at two ends of the lower semicircular groove, an upper semicircular groove is arranged on the second upper, when the guide post is inserted into the guide groove, the second upper die forming male die and the second lower die forming male die are closed to form a cylindrical cavity.

Description

Two-step forming edge rolling die

Technical Field

The utility model relates to a stamping die makes technical field, especially relates to a two-step shaping edge rolling mould.

Background

The rolling product is widely used in modern life, the traditional process is to carry out the plate in three processes of pre-bending, rolling and shaping in sequence, the processes are various, and the shaping process is very important because the precision of the rolling process is limited. At present, equipment for one-time edge rolling forming is also available in the market, although the forming effect is still good, most of the equipment are complex in structure, high in cost and low in cost performance, the manufacturing cost of a factory is increased, and enterprises lose competitiveness indirectly. Therefore, it is desirable to develop a mold-in-mold production with good economy and good rolling effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-step shaping edge rolling mould simplifies production technology, reduces the mould cost, guarantees the edge rolling effect.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a two-step forming and rounding die comprises a first forming die for pre-forming a material plate in a first step and a second forming die for further rounding the material plate in a second step, wherein the first forming die comprises a first upper die forming male die and a first lower die forming male die, a semicircular groove is formed in the first lower die forming male die, a pressure head part of the first upper die forming male die is arranged to be a semi-cylindrical surface corresponding to the semicircular groove, a positioning device is arranged on the first lower die forming male die, the material plate is limited by the positioning device, so that the length direction central line of the material plate and the central line of the semicircular groove are positioned in the same vertical plane, the second forming die comprises a second upper die forming male die and a second lower die forming male die, a lower semicircular groove is formed in the second lower die forming male die, guide posts are arranged at two ends of the lower semicircular groove, an upper semicircular groove is formed in the second upper die forming male die, a guide groove is formed corresponding, the second upper die forming male and the second lower die forming male die form a cylindrical cavity.

Particularly, the positioning device comprises eight positioning columns, the material plate is placed on the first lower die forming die, and the edges of the material plate are limited by the positioning columns.

To sum up, the beneficial effects of the utility model are that, compared with the prior art, two steps of shaping edge rolling mould are through setting up twice process, two mould stamping forming, and semicircle face is shaped respectively in twice punching press to form the edge rolling finished product, mould simple structure, the cooperation is reliable, and stability and security are strong, and the location is accurate, and the edge rolling is effectual, need not the plastic, and machining efficiency is high, and is with low costs, economical and practical.

Drawings

Fig. 1 is a schematic structural diagram of a first forming die of a two-step forming edge rolling die provided by an embodiment of the present invention;

FIG. 2 is a schematic view of the mold clamping of FIG. 1;

fig. 3 is a schematic structural diagram of a second forming die of a two-step forming edge rolling die provided by an embodiment of the present invention;

FIG. 4 is a schematic view of the mold clamping of FIG. 3;

fig. 5 is a front view of fig. 4.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 5, the present embodiment provides a two-step forming rolling mold, specifically for two steps: firstly, pressing down the center of a plane material plate 3 to form a semi-cylindrical curved surface; and secondly, pressing the two edge parts of the material plate 3 into a circle to form another semi-cylindrical surface.

The first step of process corresponds and uses first forming die 1, first forming die 1 includes first last mould shaping public 11 and first lower mould shaping public 12, has seted up semicircle type groove 13 on the first lower mould shaping public 12, and the pressure head portion 14 of first last mould shaping public 11 corresponds semicircle type groove 13 and sets up to the semicylindrical surface, is provided with positioner on the first lower mould shaping public 12, and flitch 3 is spacing by positioner for the length direction central line of flitch 3 is located same vertical plane with the central line in semicircle type groove 13. Specifically, the positioning device includes eight positioning posts 15, and the material plate 3 is placed on the first lower die forming male 12, and the positioning posts 15 limit the edge of the material plate.

When the material plate forming die is used, the material plate 3 is horizontally placed at a positioning position, the first upper die forming male die 11 is driven to be pressed downwards to be matched with the die, and the central part of the material plate 3 is punched at one time to form a semi-cylindrical surface;

the second step process corresponds uses second forming die 2, second forming die 2 includes that second mould shaping is public 21 and second lower mould shaping is public 22, offered down half slot 23 on the second lower mould shaping is public 22, the both ends that are located half slot 23 down are provided with guide post 24, last half slot 25 has been offered on the second mould shaping is public 21, and correspond guide post 24 and offered guide slot 26, insert in guide slot 26 when guide post 24, mould shaping is public 21 and the compound die of second lower mould shaping public 22 on the second, form cylindrical die cavity.

When the material rolling die is used, the preformed material plate 3 obtained in the first step is transferred into the lower semicircular groove 23, the same position with the upward opening is kept, the second upper die forming male die 21 is driven to be pressed and matched downwards, and two edge parts of the material plate 3 are punched at one time to form a semicircular cylinder, so that a complete rolling product is obtained.

The scheme only needs two working procedures, and compared with the conventional rolling process, the process is simple, convenient to operate and high in efficiency; compared with certain one-time rolling processes, the method has the advantages of simple structure, low cost, long service life, high stability and safety of the die, stable size of the obtained finished product, economy and practicability.

In conclusion, the two-step forming and rolling die is formed by two processes and two die punch forming processes, and a semi-circle surface is formed by two punching processes respectively, so that a rolled finished product is formed.

The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A two-step molding and rounding die is characterized by comprising a first molding die for preforming a material plate in a first step and a second molding die for further rounding the material plate in a second step,

the first forming die comprises a first upper die forming male die and a first lower die forming male die, a semicircular groove is formed in the first lower die forming male die, a pressure head portion of the first upper die forming male die is arranged to be a semicircular cylinder corresponding to the semicircular groove, a positioning device is arranged on the first lower die forming male die, the material plate is limited by the positioning device, so that the central line of the material plate in the length direction and the central line of the semicircular groove are located in the same vertical plane,

the second forming die comprises a second upper die forming male die and a second lower die forming male die, a lower semicircular groove is arranged on the second lower die forming male die, guide posts are arranged at two ends of the lower semicircular groove, an upper semicircular groove is arranged on the second upper die forming male die and corresponds to the guide posts, the guide posts are inserted into the guide grooves, and the second upper die forming male die and the second lower die forming male die form a cylindrical die cavity.

2. The two-step forming edge rolling die of claim 1, wherein: the positioning device comprises eight positioning columns, the material plate is placed on the first lower die forming die, and the positioning columns limit the edge of the material plate.