CN211464528U - Drawing die for forming metal container - Google Patents

Abstract

The utility model discloses a metal container shaping is with drawing die, including last movable mould and lower quiet mould, it is including the cope match-plate pattern that the upper die base was done with installing at last membrane to go up the movable mould, quiet mould includes the die holder and installs the terrace die on the die holder, the transversal positive quadrangle that has four sides to reverse right angle of personally submitting of terrace die, be provided with the shaping groove that a shape is the same with terrace die cross sectional shape on the concave die plate, the size in shaping groove is greater than the size of terrace die. Sleeving the semi-finished product on a male die, then enabling the concave die plate to move downwards to abut against the semi-finished product, continuously moving downwards to stretch the semi-finished product, adjusting the circular side wall of the semi-finished product into a structure similar to a quadrangular prism, starting the concave die plate to move downwards to reset after all stretching is completed, and finally taking down the product from the male die.

Description

Drawing die for forming metal container

Technical Field

The utility model relates to a technical field of drawing die, in particular to metal container shaping 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 production difficulty 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 by a stretching die to form the shape, so that a product is pulled to be broken and directly scrapped, so that a plurality of stretching processes are needed, the metal plate is stretched into a three-dimensional structure which is not easy to break, and then stretching adjustment is continuously carried out until the vase structure is formed, and in the process, besides the first stretching, after the metal vase is stretched to form the shape which tends to the size of the vase, a semi-finished product is stretched to form the quadrangular prism structure, which is also a very important step.

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 shaping is with tensile mould, it can carry out follow-up stretch forming to cylindrical semi-manufactured goods, forms type quadrangular structure.

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

the utility model provides a metal container shaping is with drawing mould, includes last movable mould and lower quiet mould, it includes the upper die base and installs the die board of doing at the upper die to go up the movable mould, quiet mould includes the die holder and installs the terrace die on the die holder, the cross section of terrace die is personally submitted four sides and is reversed the quadrangle that has the right angle, be provided with the shaping groove that a shape is the same with terrace die cross section shape on the die board, the size in shaping groove is greater than the size of terrace die.

According to the arrangement, the semi-finished product is sleeved on the male die, then the concave die plate is moved downwards to abut against the semi-finished product, the semi-finished product can be stretched by continuously moving downwards, the circular side wall of the semi-finished product is adjusted to be of a quadrangular-like structure, after the semi-finished product is completely stretched, the concave die plate is started to move downwards to reset, and finally the product is taken down from the male die.

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 a forming groove where the lower end face of the concave die plate is located, the first fillet is tangent to a fillet at the top of a semi-finished product, and the tangent of a tangent point is obliquely arranged.

Because semi-manufactured goods are cylindrical, and the last shaping groove shape of die board is for falling the positive quadrangle that has the right angle, sets up through above-mentioned first fillet and tangent plane structure, can play very smooth transition effect, effectively ensures more difficult emergence damage in tensile in-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, the setting of first fillet and second fillet has better transition effect, makes semi-manufactured goods more difficult emergence damage at tensile in-process to can form fillet structure on the product.

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 tensile product to it is more convenient to make the material taking process.

More preferably: the male die is sleeved with a stripper plate, and the stripper plate is in clearance fit with the male die; and a plurality of through holes are arranged on the lower die base in a penetrating way.

So set up, can pass through-hole jacking stripper through the piston rod of pneumatic cylinder to be convenient for take off from the terrace die with accomplishing tensile product.

More preferably: the punch is sleeved with a stripper plate, the stripper plate is in clearance fit with the punch, the lower die base is provided with a guide hole, the bottom of the stripper plate is connected with a guide connecting column, and the guide connecting column penetrates through the guide hole and is connected with a driving block.

So set up, be connected with the drive block through the setting of direction connecting column, so, can realize the metal sheet support to the board of unloading when placing through the mode that sets up auxiliary hydraulic cylinder in drive block below.

More preferably: the semi-finished product processed by the drawing die is cylindrical in structure, and the inner diameter of the semi-finished product is the same as the distance between the farthest two points on the cross section of the male die.

To sum up, the utility model discloses following beneficial effect has: the rejection rate is low, the finished product is beautiful and delicate, and the forming is simple and convenient.

Drawings

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

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

FIG. 3 is a schematic structural diagram of an upper moving die in the first embodiment;

FIG. 4 is a cross-sectional view of the cavity plate, blank and punch of one embodiment;

FIG. 5 is a schematic structural view of a semi-finished product;

fig. 6 is a schematic structural diagram of the second embodiment.

In the figure, 100, the moving die is arranged; 110. an upper die holder; 120. a cavity plate; 121. forming a groove; 122. a first rounded corner; 130. a stay bar; 200. a lower static mould; 210. a stripper plate; 211. a guide connecting column; 220. a male die; 221. a second chamfer; 230. a lower die holder; 231. mounting a plate; 3211. a through hole; 232. supporting legs; 240. an air outlet; 250. a drive block; 300. and (5) semi-finished product.

Detailed Description

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

Example 1: a drawing die for forming 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 stripper plate 210, the lower die holder 230 comprises a mounting plate 231 and two supporting legs 232, the two supporting legs 232 are fixedly mounted at the bottom of the mounting plate 231, and the two supporting legs 232 are both in plate-shaped arrangement. The male die 220 is arranged in a regular quadrangular prism structure, and right angles are respectively formed on four sides of the male die 220 and are fixedly arranged on the upper end surface of the lower die holder 230.

Referring to fig. 4, the top edge of the punch 220 is chamfered with a second rounded corner. 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, the discharging plate 210 is annular and is sleeved on the male mold 220 and in clearance fit with the outer sidewall of the male mold 220, and four through holes 3211 for the piston rods of the auxiliary hydraulic cylinders to pass through and abut against the discharging plate 210 are formed in the lower mold base 230.

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 provided with a forming groove 121 having the same shape as the cross-sectional shape of the male die 220, and the size of the forming groove 121 is larger than that of the male die 220. The cavity plate 120 is mounted on the upper membrane base by six support rods 130, and the support rods 130 are distributed at equal intervals 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, and the inner circle diameter of the cavity plate 120 is larger than the outer diameter of the male mold 220.

The lower end surface of the cavity plate 120 is provided with a first round corner 122, and the radius of the first round corner 122 is the same as that of the second round corner. Referring to fig. 4, the first rounded corner 122 is tangent to the top rounded corner of the semi-finished product 300, and the tangent of the tangent point is inclined.

As shown in fig. 5, the drawing die processed semi-finished product 300 has a cylindrical structure having an inner diameter equal to the distance between the farthest two points on the cross section of the punch 220.

The working principle is as follows:

sleeving the semi-finished product 300 on the male die 220, then enabling the concave die plate 120 to move downwards to abut against the semi-finished product 300, continuously moving downwards to stretch the semi-finished product 300, adjusting the circular side wall of the semi-finished product into a structure similar to a quadrangular prism, starting the concave die plate 120 to move downwards to reset after all stretching is completed, and finally taking down the product from the male die 220.

After the stretching is completed, the piston rod of the auxiliary hydraulic cylinder pushes the stripper plate 210 to move upwards to eject the product, and then the product is manually taken down.

Example 2: as shown in fig. 6, the difference from embodiment 1 is that six guide connecting columns 211 are connected to the bottom end surface of the discharge plate 210, and the six guide connecting columns 211 are distributed at equal intervals around the axial line of the discharge plate 210. Six guide holes matched with the guide connecting columns 211 are formed in the lower die holder 230, the six guide connecting columns 211 penetrate through the guide holes respectively and are 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 discharging plate 210 is flush with the upper end face of the male die 220.

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 (8)

1. A drawing die for forming a 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) installed on the upper die, the stationary die comprises a lower die holder (230) and a convex die (220) installed on the lower die holder (230), the cross section of the convex die (220) is in a square shape with four inverted right angles, a forming groove (121) with the same shape as the cross section of the convex die (220) is formed in the concave die plate (120), and the size of the forming groove (121) is larger than that of the convex die (220).

2. The drawing die for forming a metal container as set forth in claim 1, wherein: the concave template (120) is connected with the upper die base (110) through a plurality of support rods (130).

3. The drawing die for forming a metal container as set forth in claim 1, wherein: a first fillet (122) is poured on a forming groove (121) where the lower end face of the concave die plate (120) is located, the first fillet (122) is tangent to a fillet at the top of a semi-finished product (300), and the tangent plane of a tangent point is obliquely arranged.

4. The drawing die for forming a metal container as set forth in claim 3, wherein: the edge of the upper end face of the male die (220) is chamfered with a second fillet with the same diameter as the first fillet (122).

5. The drawing die for forming 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).

6. The drawing die for forming a metal container as set forth in claim 1, wherein: a discharging plate (210) is sleeved on the male die (220), and the discharging plate (210) is in clearance fit with the male die (220); a plurality of through holes (3211) are arranged on the lower die holder (230) in a penetrating manner.

7. The drawing die for forming a metal container as set forth in claim 1, wherein: the stamping die is characterized in that a discharging plate (210) is sleeved on the male die (220), the discharging plate (210) is in clearance fit with the male die (220), a guide hole is formed in the lower die holder (230), a guide connecting column (211) is connected to the bottom of the discharging plate (210), and the guide connecting column (211) penetrates through the guide hole and is connected with a driving block (250).

8. The drawing die for forming a metal container as set forth in claim 1, wherein: the semi-finished product (300) processed by the drawing die is cylindrical in structure, and the inner diameter of the semi-finished product is the same as the distance between the farthest two points on the cross section of the male die (220).

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