Foam feeding device for evanescent mode mold production

Abstract

A foam feeding device for evanescent mode mold production effectively solves the problems that feeding blockage is prone to occurring, and the feeding speed is affected and comprises a feeding channel, the feeding channel is communicated with a vertical conveying pipe, a rotating shaft in the front-back direction is rotationally connected into the conveying pipe, and a plurality of baffles are evenly fixed to the circumference of the rotating shaft. The right end of the feeding channel is connected with an air conveying pipe, the left end of the feeding channel is provided with a limiting boss, the outer surface of the feeding channel is connected with a nut in a left-right sliding mode, the nut is located on the right side of the limiting boss, and the left side of the limiting boss is connected with an evanescent mode mold.

Description

Technical Field

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

[0002] The lost foam mold is a special mold that provides a white mold model for lost foam casting. It is roughly divided into an upper mold and a lower mold. In lost foam casting, the quality of the white mold directly affects the quality of the casting. In the process of white mold forming, the foam filling process is a crucial step. The foam filling is carried out by compressed gas carrying foam beads and filling the foam beads into every corner of the mold completely. In the existing foam feeding device during the feeding process, the feeding channel is prone to blockage, the feeding speed is slow, and the working efficiency is low. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a foam feeding device for lost foam mold production, which effectively solves the problems of easy blockage of feeding and affecting the feeding speed.

[0004] The technical solution for solving the technical problem is: it includes a feeding channel, the feeding channel is communicated with a vertical feeding pipe, a rotating shaft in the front-back direction is rotatably connected in the feeding pipe, a plurality of baffles are fixedly arranged on the circumference of the rotating shaft evenly, the lowermost baffle is located inside the feeding channel, the right end of the feeding channel is connected with an air delivery pipe, a limiting boss is installed at the left end of the feeding channel, and a nut is slidably connected to the outer surface of the feeding channel left and right. The nut is located on the right side of the limiting boss, and a lost foam mold is connected to the left side of the limiting boss.

[0005] Preferably, the cross-section of the feeding pipe is square, and the cross-section of the feeding channel is circular.

[0006] Preferably, the air delivery pipe is communicated with an air pressure tank, a valve is installed on the air delivery pipe, and an air pressure gauge is arranged on the air pressure tank.

[0007] Preferably, the other end of the feeding pipe is communicated with a foam storage tank.

[0008] Preferably, a sealing gasket is installed on the outer surface of the feeding channel, and the sealing gasket is located between the limiting boss and the nut.

[0009] The utility model has the following advantages compared with traditional equipment: 1) The structure is ingenious and has good intuitiveness. Under the action of air pressure, the air pressure blows the baffle to rotate, and a plurality of baffles turn the foam in the feeding pipe into the feeding channel in turn. The feeding is uniform, the feeding speed is fast, the working efficiency is high, effectively preventing blockage of the lost foam mold, with good stability, and no additional power is required, with low cost; 2) Adopting the structure of the limiting boss, the sealing gasket and the nut, the feeding channel is convenient to dock with the lost foam mold, has good sealing performance, is simple to operate, and is economical and practical. Brief Description of the Drawings

[0010] Figure 1 is a schematic view of the front view of the present utility model;

[0011] Figure 2 is a schematic view of the three-dimensional structure of the baffle and the material conveying pipe in the present utility model;

[0012] Figure 3 is a schematic view of the three-dimensional structure of the rotating shaft in the present utility model;

[0013] Figure 4 is a schematic view of the three-dimensional structure of the nut in the present utility model.

[0014] Reference numerals: 1, feed channel; 2, material conveying pipe; 3, rotating shaft; 4, baffle; 5, air conveying pipe; 6, limiting boss; 7, nut; 8, lost foam mold; 9, air pressure tank; 10, valve; 11, foam storage tank; 12, sealing gasket. Detailed Description of the Preferred Embodiments

[0015] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings.

[0016] As shown by Figures 1 to 4 , a foam feeding device for a lost foam mold production includes a feed channel 1. The feed channel 1 is communicated with a vertically arranged material conveying pipe 2. A rotating shaft 3 in the front-rear direction is rotatably connected in the material conveying pipe 2. A plurality of baffles 4 are uniformly fixed on the circumference of the rotating shaft 3. The lowermost baffle 4 is located inside the feed channel 1. The right end of the feed channel 1 is connected with an air conveying pipe 5. A limiting boss 6 is installed at the left end of the feed channel 1. A nut 7 is slidably connected to the outer surface of the feed channel 1 in the left-right direction. The nut 7 is located on the right side of the limiting boss 6. The left side of the limiting boss 6 is connected with a lost foam mold 8.

[0017] The cross-section of the material conveying pipe 2 is square, and the cross-section of the feed channel 1 is circular.

[0018] In order to ensure proper air pressure for conveying, the air conveying pipe 5 is communicated with an air pressure tank 9. A valve 10 is installed on the air conveying pipe 5, and an air pressure gauge is provided on the air pressure tank 9.

[0019] The other end of the material conveying pipe 2 is communicated with a foam storage tank 11.

[0020] In order to ensure the sealing performance of the connection between the feed pipeline and the lost foam mold 8, a sealing gasket 12 is installed on the outer surface of the feed channel 1, and the sealing gasket 12 is located between the limiting boss 6 and the nut 7.

[0021] When the utility model is in use, the limiting boss 6 is aligned with the feed inlet of the lost foam mold 8, and then the nut 7 is rotated. The nut 7 is threadedly connected to the outer surface of the feed inlet of the lost foam mold 8, so that the feed channel 1 is installed together with the feed inlet. Under the action of the sealing gasket 12, air leakage is prevented;

[0022] The rotating shaft 3 is located in the material conveying pipe 2. The material conveying pipe 2 is communicated with the foam storage tank 11. The material conveying pipe 2 is designed in the vertical direction, which is convenient for the foam in the foam storage tank 11 to flow downward into the interior of the material conveying pipe 2, and has good fluidity. The valve 10 is opened, and the air conveying pipe 5 starts to convey gas into the feed channel 1. The gas flows from right to left in the feed channel 1. The lowermost baffle 4 is located inside the feed channel 1. Under the action of air pressure, the lowermost baffle 4 drives the rotating shaft 3 to rotate. The rotating shaft 3 drives a plurality of baffles 4 arranged in a circle to rotate synchronously. Furthermore, a plurality of baffles 4 sequentially push the foam in the material conveying pipe 2 to turn over into the feed channel 1. The foam in the feed channel 1 is conveyed into the lost foam mold 8 under the action of air pressure, and the feeding is uniform, effectively preventing the feed inlet of the lost foam mold 8 from being blocked, and being safe and stable.

[0023] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model all belong to the protection scope of the technical solution of the present utility model.

Claims

1. A foam feeding device for lost foam mold production, characterized in that: The invention comprises a feed channel (1), the feed channel (1) is connected to a feed pipe (2) in a vertical direction, a rotating shaft (3) in a front-to-rear direction is rotatably connected inside the feed pipe (2), a plurality of baffles (4) are evenly fixed on the circumference of the rotating shaft (3), the lowest baffle (4) is located inside the feed channel (1), the right end of the feed channel (1) is connected to an air pipe (5), a limiting boss (6) is installed at the left end of the feed channel (1), a nut (7) is slidably connected to the outer surface of the feed channel (1) in a left-right direction, the nut (7) is located on the right side of the limiting boss (6), and a lost foam mold (8) is connected to the left side of the limiting boss (6).

2. A foam feeding device for lost foam mold production according to claim 1, characterized in that: The cross section of the material conveying pipe (2) is square, and the cross section of the material feeding channel (1) is circular.

3. The foam feeding device for lost foam mold production according to claim 1, characterized in that: The gas delivery pipe (5) is connected to a pressure tank (9), a valve (10) is installed on the gas delivery pipe (5), and a pressure gauge is provided on the pressure tank (9).

4. The foam feeding device for lost foam mold production according to claim 1, characterized in that: The other end of the material delivery pipe (2) is connected to a foam material storage box (11).

5. The foam feeding device for lost foam mold production according to claim 1, characterized in that: A sealing gasket (12) is installed on the outer surface of the feed channel (1), and the sealing gasket (12) is located between the limiting boss (6) and the nut (7).

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