CN211304465U

CN211304465U - Drawing die for processing metal container

Info

Publication number: CN211304465U
Application number: CN201922336179.9U
Authority: CN
Inventors: 周明波; 王骋翾; 游鲁胜
Original assignee: Zhejiang Royal Palace Culture Development Co ltd
Current assignee: Zhejiang Royal Palace Culture Development Co ltd
Priority date: 2019-12-21
Filing date: 2019-12-21
Publication date: 2020-08-21
Anticipated expiration: 2029-12-21

Abstract

The utility model discloses a drawing die for processing metal containers, which comprises an upper moving die and a lower static die, wherein the upper moving die comprises an upper die base and a concave die plate arranged on the upper die, the lower static die comprises a cylindrical male die and a blank holder sleeved on the male die, and the blank holder comprises an annular limiting part and a sleeve joint bulge which is fixed on the limiting part and is annular; the concave template is in an annular shape coaxial with the convex die, the diameter of an inner circle of the concave template is larger than the outer diameter of the convex die, the diameter of an inner circle of the concave template is smaller than the diameter of an outer circle of the sleeving protrusion, a limiting rod used for keeping the distance between the sleeving protrusion and the blank holder is arranged between the concave template and the blank holder, and the limiting rod is fixedly installed on the concave template or the blank holder. The semi-finished product is conveniently stretched, the outer diameter of the semi-finished product is reduced, and therefore the rejection rate is low when the semi-finished product is adjusted to the shape of a quadrilateral structure at the later stage.

Description

Drawing die for processing metal container

Technical Field

The utility model relates to a technical field of drawing die, in particular to metal container processing is with drawing die.

Background

The existing metal container, such as metal ornaments like metal vases and the like, is cast at present, the metal container produced by adopting the casting process has the defect of low precision, and needs to be processed by multiple procedures such as sand throwing, polishing, deburring and the like, so that the procedures are complicated and the production cost is high.

The products produced by drawing dies do not have the above-mentioned problems, and therefore, there have been some companies who have been studying how to apply drawing dies to the production of metal containers. The metal vase shown in fig. 1 has a difficulty in production that the shape is a quadrangular prism structure, and in order to effectively reduce production cost, the adopted raw material is a metal plate, but the metal plate is directly stretched into the shape through a stretching die to cause the product to be broken and directly scrapped, so that a plurality of stretching processes are required, and after the first semi-finished product is formed, the semi-finished product needs to be adjusted and stretched again to avoid being broken and scrapped.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a metal container processing is with drawing mould, it can carry out follow-up stretch forming to the semi-manufactured goods of initial molding, makes it become slender, tends to the required size of vase gradually.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a drawing die for processing a metal container comprises an upper moving die and a lower static die, wherein the upper moving die comprises an upper die base and a concave die plate arranged on the upper die, the lower static die comprises a cylindrical male die and a blank holder sleeved on the male die, and the blank holder comprises an annular limiting part and a sleeve joint bulge which is fixed on the limiting part and is annular; the female die plate is in an annular shape coaxial with the male die, the diameter of an inner circle of the female die plate is larger than the outer diameter of the male die, the diameter of an inner circle of the female die plate is smaller than the diameter of an outer circle of the sleeving protrusion, a limiting rod used for keeping the distance between the sleeving protrusion and the blank holder is arranged between the female die plate and the blank holder, and the limiting rod is fixedly installed on the female die plate or the blank holder.

According to the arrangement, the concave template and the blank holder are separated, the concave template is lifted, the blank holder is positioned at the top of the convex die, the upper end face of the blank holder is not lower than that of the convex die, the semi-finished product is sleeved on the sleeving protrusion, the concave template moves downwards to enable two ends of the limiting rod to be respectively abutted against the limiting ring and the concave template, finally, the concave template is started again to move downwards to drive the semi-finished product and the blank holder to move downwards together, the semi-finished product is pressed into the inner ring of the concave template by the convex die until the semi-finished product is completely pulled out of the sleeving protrusion, the diameter of the original semi-finished product is reduced, and the size of the metal vase can be gradually approached after the semi-finished product is stretched by.

More preferably: the punch is fixedly installed on a lower die holder, a guide hole is formed in the lower die holder, the bottom of the limiting portion is connected with a guide connecting column, the guide connecting column penetrates through the guide hole to be connected with a driving block, and when the driving block is abutted against the lower die holder, the top end of the sleeve joint bulge is not lower than the upper end face of the punch.

So set up, be connected with the drive block through the setting of direction connection post, so, can realize the support of metal sheet when placing blank holder through the mode that sets up auxiliary hydraulic cylinder in the drive block below.

More preferably: the concave template is connected with the upper die holder through a plurality of support rods.

So set up, can reduce the thickness of die plate to can ensure to provide sufficient distance, make the terrace die can insert in the die plate.

More preferably: a first fillet is inverted on the inner ring where the lower end face of the concave template is located.

So set up, form better transition effect, make semi-manufactured goods more difficult emergence damage in tensile process.

More preferably: and a second fillet with the same diameter as the first fillet is poured on the edge of the upper end face of the male die.

So set up, form better transition effect, make semi-manufactured goods more difficult emergence breakage at tensile in-process, can remain the fillet on the semi-manufactured goods simultaneously.

More preferably: and the lower static die is provided with an air outlet which penetrates through the male die and the lower die holder.

So set up, avoid producing the vacuum between terrace die and semi-manufactured goods to it is more convenient to make the material taking process.

More preferably: and a third fillet is arranged on the outer edge of the top of the sleeve joint bulge.

So set up, form better transition effect, make the metal sheet more difficult emergence breakage in tensile process.

More preferably: the limiting part and the sleeve joint bulge are in clearance fit with the male die.

By the arrangement, after the stretching is finished, the stretched semi-finished product can be ejected out by moving the blank holder upwards.

More preferably: the limiting rod is fixedly installed on the concave template.

So set up, the installation of semi-manufactured goods on cup jointing the arch of being convenient for.

To sum up, the utility model discloses following beneficial effect has: the semi-finished product is conveniently stretched, the outer diameter of the semi-finished product is reduced, and therefore the rejection rate is low when the semi-finished product is adjusted to the shape of a quadrilateral structure at the later stage.

Drawings

FIG. 1 is a schematic structural diagram of a metal vase to be produced

FIG. 2 is a first schematic structural diagram of the present embodiment, showing the structure during mold splitting;

FIG. 3 is a second structural diagram of the present embodiment, showing the structure during mold splitting;

fig. 4 is a front sectional view of the present embodiment.

In the figure, 100, the moving die is arranged; 110. an upper die holder; 120. a cavity plate; 121. a first rounded corner; 130. a stay bar; 140. a limiting rod; 200. a lower static mould; 210. a blank holder; 211. a limiting part; 212. the bulge is sleeved; 213. a third fillet; 214. a guide connecting column; 220. a male die; 221. a second chamfer; 230. a lower die holder; 231. mounting a plate; 232. supporting legs; 240. an air outlet; 250. a drive block; 300. a plate body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A drawing die for processing a metal container, as shown in FIG. 2, includes an upper moving die 100 and a lower stationary die 200.

The lower stationary die 200 comprises a lower die holder 230, a male die 220 and a blank holder 210, the lower die holder 230 comprises a mounting plate 231 and two supporting pins 232, the two supporting pins 232 are fixedly mounted at the bottom of the mounting plate 231, and the two supporting pins 232 are both arranged in a plate shape. The male die 220 is cylindrical and is fixedly mounted on the upper end surface of the lower die holder 230, and referring to fig. 4, the top edge of the male die 220 is chamfered with a second round angle. An air outlet 240 is formed in the lower stationary die 200, and the upper end of the air outlet 240 penetrates through the male die 220 and the lower end of the air outlet penetrates through the mounting plate 231 of the lower die holder 230.

Referring to fig. 2 and 4, the blank holder 210 includes an annular limiting portion 211 and a sleeve protrusion 212, the limiting portion 211 and the sleeve protrusion 212 are both arranged in an annular structure, and the inner circle diameters of the limiting portion 211 and the sleeve protrusion are the same and form clearance fit with the outer diameter of the male die 220.

The height of the sleeve protrusion 212 is larger than that of the semi-finished product to be installed, the outer diameter of the sleeve protrusion is the same as the inner diameter of the semi-finished product, and a third round corner 213 matched with the top end of the inner part of the semi-finished product is arranged at the top of the sleeve protrusion 212.

The limiting part 211 is integrally arranged at the bottom end of the socket protrusion 212, and the outer diameter of the limiting part is larger than that of the socket protrusion 212 to form a convex structure.

Six guide connecting columns 214 are connected to the end face of the bottom end of the blank holder 210, and the six guide connecting columns 214 are distributed around the axial lead of the blank holder 210 at equal intervals. Six guide holes matched with the guide connecting posts 214 are formed in the lower die holder 230, the six guide connecting posts 214 respectively penetrate through the guide holes to be connected with a driving block 250, and when the driving block 250 ascends to abut against the mounting plate 231, the upper end face of the sleeving protrusion 212 is flush with the upper end face of the male die 220.

Referring to fig. 2, the upper moving die 100 includes an upper die base 110 and a cavity plate 120, the cavity plate 120 is a ring-shaped structure and is mounted on the upper die base by six support rods 130, and the support rods 130 are equally spaced around the axis of the cavity plate 120. The cavity plate 120 is located above the lower stationary mold 200, the cavity plate 120 and the male mold 220 are coaxially arranged, the inner circle diameter of the cavity plate 120 is larger than the outer diameter of the male mold 220, and the inner circle diameter of the cavity plate 120 is smaller than the outer circle diameter of the sleeve protrusion 212, so that the diameter of the semi-finished product is reduced.

Six limiting rods 140 are fixedly connected to the lower end face of the cavity plate 120, and the length of the limiting rods 140 is greater than the height of the socket convex ring, so that when the limiting rods 140 abut against the limiting parts 211, a space is formed between the socket convex 212 and the blank holder 210.

Wherein, the distance between the sleeve joint bulge 212 and the blank holder 210 is the same as the radius difference between the inner diameter of the concave template 120 and the outer diameter of the convex template 220.

Referring to fig. 4, the lower end surface of the cavity plate 120 is chamfered with a first fillet 121 on the inner ring, and the first fillet 121, the second fillet and the third fillet 213 have the same radius.

The working principle is as follows:

the method comprises the steps of separating the female die plate 120 from the blank holder 210, lifting the female die plate 120, ensuring that the blank holder 210 is positioned at the top of the male die 220, keeping the upper end face of the blank holder 210 flush with the male die 220, sleeving the semi-finished product on the sleeving protrusion 212, moving the female die plate 120 downwards to enable two ends of the limiting rod 140 to be respectively abutted against the limiting ring and the female die plate 120, starting the female die plate 120 to move downwards again to drive the semi-finished product and the blank holder 210 to move downwards together, enabling the male die 220 to press the semi-finished product into the inner ring of the female die plate 120 until the semi-finished product is completely pulled out of the sleeving protrusion 212, moving the female die plate 120 upwards to an initial height, and then pushing the driving block 250 to drive the blank holder 210 to move upwards to enable the processed.

Therefore, the diameter of the original semi-finished product can be reduced, and the semi-finished product can slowly approach the size of the metal vase after being stretched by a plurality of sets of equipment.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The drawing die for processing the metal container comprises an upper moving die (100) and a lower static die (200), and is characterized in that: the upper moving die (100) comprises an upper die holder (110) and a concave die plate (120) arranged on the upper die, the lower static die (200) comprises a cylindrical male die (220) and a blank holder (210) sleeved on the male die (220), and the blank holder (210) comprises an annular limiting part (211) and an annular sleeving bulge (212) fixed on the limiting part (211); the die plate (120) is annular and coaxial with the punch (220), the inner circle diameter of the die plate is larger than the outer diameter of the punch (220), the inner circle diameter of the die plate (120) is smaller than the outer circle diameter of the sleeving protrusion (212), a limiting rod (140) used for keeping the distance between the sleeving protrusion (212) and the blank holder (210) is arranged between the die plate (120) and the blank holder (210), and the limiting rod (140) is fixedly installed on the die plate (120) or the blank holder (210).

2. The drawing die for processing a metal container as set forth in claim 1, wherein: the male die (220) is fixedly installed on a lower die holder (230), a guide hole is formed in the lower die holder (230), a guide connecting column (214) is connected to the bottom of the limiting portion (211), the guide connecting column (214) penetrates through the guide hole to be connected with a driving block (250), and when the driving block (250) is abutted to the lower die holder (230), the top end of the sleeving protrusion (212) is not lower than the upper end face of the male die (220).

3. The drawing die for processing a metal container according to claim 1 or 2, wherein: the concave template (120) is connected with the upper die base (110) through a plurality of support rods (130).

4. The drawing die for processing a metal container as set forth in claim 1, wherein: a first fillet (121) is inverted on an inner ring where the lower end face of the concave template (120) is located.

5. The drawing die for processing a metal container as set forth in claim 4, wherein: and a second fillet with the same diameter as the first fillet (121) is chamfered on the edge of the upper end face of the male die (220).

6. The drawing die for processing a metal container as set forth in claim 1, wherein: the lower static die (200) is provided with an air outlet (240), and the air outlet (240) penetrates through the male die (220) and the lower die holder (230).

7. The drawing die for processing a metal container as set forth in claim 1, wherein: and a third fillet (213) is arranged on the outer edge of the top of the sleeving convex (212).

8. The drawing die for processing a metal container as set forth in claim 1, wherein: the limiting part (211) and the sleeving protrusion (212) are in clearance fit with the male die (220).

9. The drawing die for processing a metal container as set forth in claim 1, wherein: the limiting rod (140) is fixedly arranged on the concave template (120).