Blanking device for die production

Abstract

A discharging device for mold production comprises a discharging mechanism arranged above one end of a mold cavity, the discharging mechanism comprises a horizontally-arranged main material pipe, a vertically-arranged pouring cup is arranged at the top end of the main material pipe, the lower end of the pouring cup is communicated with the main material pipe, and the two ends of the main material pipe are sealed; a plurality of first risers which are uniformly arranged at intervals in the length direction of the main material pipe are arranged on the left side of the main material pipe, branch material pipes are communicated between the first risers and the main material pipe, and discharging holes are formed in the bottom ends of the first risers; the die further comprises a second riser arranged above the other end of the die cavity, openings are formed in the bottom end and the top end of the second riser, a vertically-arranged breather pipe is fixed to the top end of the second riser, the bottom end of the breather pipe is communicated with the second riser, and the top end of the breather pipe is open. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold production, and particularly relates to a blanking device for mold production. Background Technique

[0002] Molds are various dies and tools used in industrial production to obtain required products through injection molding, blow molding, extrusion, die casting, forging, smelting, stamping and other methods. In short, a mold is a tool for making formed articles. This tool is composed of various parts. Different molds are composed of different parts. It mainly realizes the processing of the article shape through the change of the physical state of the formed material, and is known as the "mother of industry". During the production of some molds, it is necessary to carry out production by pouring. The lost mold of the mold shape is placed in the sand box for mold production, and then molten steel is poured into the cavity of the lost mold through the pouring port. After the lost mold disappears, the molten steel fills the space of the lost mold. After the molten steel cools and solidifies, the mold is made. However, in the prior art, when producing some molds with small volumes, pouring one by one not only has low efficiency, but also the pouring amount of molten steel is not easy to control, which is easy to cause waste of molten steel. Moreover, the gas generated after the lost mold disappears cannot be discharged in time, so the produced mold will be doped with air holes, affecting the production quality of the product. Content of the Utility Model

[0003] In order to solve the technical problems of low pouring efficiency of molten steel in the existing mold production and poor product quality due to the inability to discharge gas in time, the utility model provides a blanking device for mold production, which includes a blanking mechanism arranged above one end of the mold cavity. The blanking mechanism includes a horizontally arranged main material pipe. The top of the main material pipe is provided with a vertically arranged pouring cup. The lower end of the pouring cup is communicated with the main material pipe. The pouring cup is in a funnel shape. During use, the molten steel in a molten state is poured into the pouring cup. Both ends of the main material pipe are sealed, and several first risers are uniformly spaced along the length direction of the main material pipe on the left side of the main material pipe. A branch material pipe is communicated between the first riser and the main material pipe. The bottom end of the first riser is provided with a blanking hole. The molten steel in a molten state enters the main material pipe from the pouring cup and flows into the first riser through the branch material pipe, and then falls to the mold cavity from the opening at the bottom end of the first riser. It also includes a second riser arranged above the other end of the mold cavity. Both the bottom end and the top end of the second riser are provided with openings. The first riser and the second riser play a role in feeding. The volume of the molten steel will become smaller after cooling. Some molten steel will be stored in the first riser and the second riser. When the volume of the molten steel decreases after cooling, the molten steel in the first riser and the second riser will flow back into the mold cavity again.

[0004] Preferably, a vertically arranged ventilation pipe is fixed at the top end of the second riser. The bottom end of the ventilation pipe is communicated with the second riser. The top end of the ventilation pipe is open to the atmosphere, which can not only discharge the gas in the mold cavity, but also balance the pressure.

[0005] Preferably, the right end of the branch material pipe is connected to the lower end of the main material pipe; the left end of the branch material pipe is connected to the upper end of the first riser.

[0006] Preferably, the inner cross-sectional area of the branch material pipe is smaller than that of the main material pipe.

[0007] Preferably, the top end of the vent pipe is higher than the height of the main material pipe and lower than the height of the pouring cup.

[0008] Adopting the above scheme has the following advantages:

[0009] With the arrangement of the pouring cup, the main material pipe and the branch material pipe, molten steel is poured into the pouring cup through the ladle, and the molten steel in the molten state flows to each branch material pipe through the main material pipe, improving the pouring efficiency and eliminating the need to frequently change the pouring position of the ladle, thus enhancing safety; the first riser and the second riser play a role in feeding. After the molten steel cools, its volume will decrease, and some molten steel will be stored in the first riser and the second riser. When the volume of the molten steel decreases due to cooling, the molten steel in the first riser and the second riser will flow back into the mold cavity again; with the arrangement of the vent pipe, the top end of the vent pipe is open and the vent pipe is connected to the atmosphere, which can not only discharge the gas in the mold cavity but also balance the pressure. Brief Description of the Drawings

[0010] Figure 1 is a schematic three-dimensional structure diagram of the present invention Figure 1 ;

[0011] Figure 2 is a schematic front view structure diagram of the present invention;

[0012] Figure 3 is a schematic left view structure diagram of the present invention;

[0013] Figure 4 is a schematic top view structure diagram of the present invention;

[0014] Figure 5 is a schematic three-dimensional structure diagram of the present invention Figure 2 。

[0015] Reference Numerals: 1, main material pipe; 2, second riser; 3, mold; 11, pouring cup; 12, first riser; 13, branch material pipe; 21, vent pipe. Detailed Description of the Invention

[0016] Such as Figure 1-2As shown in the figure, a blanking device for mold production includes a blanking mechanism arranged above one end of the mold cavity. The blanking mechanism includes a horizontally arranged main material pipe 1. At the top end of the main material pipe 1, there is a vertically arranged pouring cup 11. The lower end of the pouring cup 11 is connected to the main material pipe 1. The pouring cup 11 is in a funnel shape. During use, molten steel is poured into the pouring cup 11. Both ends of the main material pipe 1 are sealed, and on the left side of the main material pipe 1, there are several first risers 12 evenly spaced along the length direction of the main material pipe 1. A branch material pipe 13 is connected between the first riser 12 and the main material pipe 1. A blanking hole is provided at the bottom end of the first riser 12. The molten steel enters the main material pipe 1 from the pouring cup 11, flows into the first riser 12 through the branch material pipe 13, and then falls into the mold cavity from the opening at the bottom end of the first riser 12. It also includes a second riser 2 arranged above the other end of the mold cavity. Both the bottom end and the top end of the second riser 2 are provided with openings. The first riser 12 and the second riser 2 play a role in feeding. After the steel cools, its volume will become smaller. Some molten steel will be stored in the first riser 12 and the second riser 2. When the volume of the steel decreases due to cooling, the steel in the first riser 12 and the second riser 2 will flow back into the mold cavity again.

[0017] Preferably, a vertically arranged vent pipe 21 is fixed at the top end of the second riser 2. The bottom end of the vent pipe 21 is connected to the second riser 2. The top end of the vent pipe 21 is open to the atmosphere, which can not only discharge the gas in the mold cavity but also balance the pressure.

[0018] Preferably, the right end of the branch material pipe 13 is connected to the lower end of the main material pipe 1; the left end of the branch material pipe 13 is connected to the upper end of the first riser 12.

[0019] Preferably, the inner cross-sectional area of the branch material pipe 13 is smaller than that of the main material pipe 1.

[0020] Preferably, the top end of the vent pipe 21 is higher than the height of the main material pipe 1 and lower than the height of the pouring cup 11.

[0021] Usage process:

[0022] When the utility model is in use, first, the lower ends of the first risers 12 are placed one by one corresponding to the upper right of the mold cavity (a lost film with the shape of a mold is arranged in the mold cavity), the air vent pipe 21 is upward, and the second riser 2 is downward and arranged above the left end of the mold cavity. Then, the molten steel is poured into the pouring cup 11. The molten steel enters the main material pipe 1 from the pouring cup 11 and flows into the first riser 12 from the branch material pipe 13. Then, it falls from the opening at the bottom end of the first riser 12 into the mold cavity. The lost film in the mold cavity melts under the action of the high-temperature molten steel, and the generated gas is discharged from the mold cavity through the second riser 2 and the air vent pipe 21. After the molten steel fills the mold cavity, it continues to flow upward into the second riser 2. After the molten steel cools, the molten steel in the first riser 12 and the second riser 2 flows downward into the mold cavity until the mold in the mold cavity is formed. Then, the second riser 2 and the first riser 12 are removed manually, and the mold is polished.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0024] The above embodiments are illustrative of the present utility model, not limiting. Any simple transformation of the present utility model belongs to the protection scope of the present utility model.

Claims

1. A blanking device for mold production, comprising a blanking mechanism arranged above one end of a mold cavity, characterized in that: The blanking mechanism includes a horizontally arranged main material pipe. A vertically arranged pouring cup is provided at the top end of the main material pipe. The lower end of the pouring cup is communicated with the main material pipe. Both ends of the main material pipe are sealed. And a plurality of first risers are provided on the left side of the main material pipe at uniform intervals along the length direction of the main material pipe. A branch material pipe is communicated between the first riser and the main material pipe. A blanking hole is provided at the bottom end of the first riser. It also includes a second riser arranged above the other end of the mold cavity. Both the bottom end and the top end of the second riser are provided with openings.

2. The blanking device for mold production according to claim 1, wherein: A vertically arranged vent pipe is fixed at the top end of the second riser. The bottom end of the vent pipe is communicated with the second riser. The top end of the vent pipe is open.

3. The blanking device for mold production according to claim 1, characterized in that: The right end of the branch material pipe is connected to the lower end of the main material pipe. The left end of the branch material pipe is connected to the upper end of the first riser.

4. The blanking device produced by a mold according to claim 3, characterized in that: The inner cross-sectional area of the branch material pipe is smaller than that of the main material pipe.

5. The blanking device produced by a mold according to claim 2, characterized in that: The top end of the vent pipe is higher than the height of the main material pipe and lower than the height of the pouring cup.

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