Hanging tool for investment precision casting shell

Abstract

The utility model discloses an investment precision casting shell hanging tool which comprises a drying hanging frame, an air blowing system and a gate stick, the drying hanging frame comprises a main support and a plurality of layers of cross beam sets, the cross beam sets on the same layer are arranged at equal intervals, and the cross beam sets on the adjacent layers are arranged in a staggered mode. The gate sticks are clamped in the rails of the cross beam groups, or the gate sticks are arranged between the adjacent cross beam groups through gaskets; the air blowing system comprises an air blower and a main pipeline which are connected with each other, holes are formed in the positions, corresponding to the cross beam sets, of the main pipeline, and hoses are arranged on the holes. According to the utility model, the special gate stick and the air blowing system are arranged to solve the problems of large land occupation and unsatisfactory drying effect in the process of drying the artware casting mold shell.

Description

Technical Field

[0001] The utility model relates to the field of precision investment casting of handicrafts, and particularly relates to a hanging tooling for investment casting shell of handicrafts. Background Art

[0002] The technological process of precision investment casting of handicrafts is as follows: drawing → modeling → tooling making - wax pattern making → wax pattern repairing → assembly welding → shell making → dewaxing → shell roasting → melting and pouring → cleaning → grinding and finishing. After the wax pattern assembly welding is completed and after multiple layers of shell making, dewaxing, roasting and pouring can be carried out. Depending on the size of the product, the number of shell making layers required is different. The shell making process includes slurry dipping, sand spreading and drying. After one layer of shell making is completed, the shell mold must be completely dry before the next layer of shell making can be carried out; otherwise, the shell mold will be damaged during dewaxing and pouring. Usually, the method of drying the shell mold is to place the shell mold after slurry dipping and sand spreading in a constant temperature and humidity drying room for drying. The shell molds are either placed parallel on the indoor ground or hung on a bracket, and tools such as fans are used to accelerate the drying speed. This method not only occupies a large amount of working space, but also has an unsatisfactory drying effect for complex handicraft castings with internal cavities.

[0003] Therefore, it is necessary to specifically develop a hanging tooling for investment casting shell to overcome the above problems. Summary of the Utility Model

[0004] Purpose of the utility model: Aiming at the deficiencies and defects of the prior art, the utility model provides a hanging tooling for investment casting shell of handicrafts, and is equipped with a special gating rod and a blowing system to solve the problems of large floor area occupied by drying of the mold shell of handicraft castings and unsatisfactory drying effect.

[0005] Technical solution: A hanging tooling for investment casting shell of the utility model is characterized in that: it includes a drying hanger, a blowing system and a gating rod. The drying hanger includes a main support and several layers of crossbeam groups. The crossbeam groups on the same layer are arranged at equal distances, and the crossbeam groups of adjacent layers are arranged staggeredly; the gating rod is clamped inside the track of the crossbeam group, or the gating rod is arranged between adjacent crossbeam groups through a gasket; the blowing system includes a blower and a main pipeline connected to each other. The main pipeline is provided with openings at positions corresponding to each crossbeam group, and a hose is arranged on the opening.

[0006] Wherein, the main support and the crossbeam group are an integrally welded structure.

[0007] Wherein, the main pipeline is connected by socket connection of several sections of PVC pipes, and the main pipeline is connected to the blower by socket connection.

[0008] Wherein, the main pipeline and the main support are connected by tying with ropes.

[0009] Among them, two crossbeams on each drying rack are grouped together. The distance between the crossbeams in the same group is the internal distance, the distance between the crossbeam groups on the same layer is the external distance, and the crossbeam groups of adjacent layers are staggered by half of the external distance.

[0010] Among them, the gate rod includes a butterfly nut, a threaded rod and a gasket.

[0011] Among them, the maximum diameter of the threaded rod of the gate rod is smaller than the internal distance of each crossbeam group.

[0012] Among them, the outer diameter of the circumscribed circle of the gasket of the gate rod is larger than the external distance between two crossbeam groups.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following remarkable advantages: The utility model is equipped with a dedicated gate rod and a blowing system to solve the problems of large floor area for drying the mold shells of handicraft castings and unsatisfactory drying effect. By using the investment casting shell hanging tooling of the utility model, the utilization rate of the mold shell drying device and the drying speed of the mold shell are improved; through the dislocation between the upper and lower rows of crossbeam groups and various placement methods of the gate rod tooling, the placement requirements of mold shells of different sizes can be met, and the drying position vacancy caused by the interference between mold shells can be avoided; through components such as a blower, a main pipeline, and a hose, air can be sent into the complex positions inside the mold shell, which is difficult to achieve by traditional fans, greatly improving the drying speed of the mold shell. Brief Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the utility model;

[0015] Figure 2 is a schematic structural diagram of the drying rack of the utility model;

[0016] Figure 3 is a schematic side view structural diagram of the drying rack of the utility model;

[0017] Figure 4 is a schematic structural diagram of the blowing system of the utility model;

[0018] Figure 5 is a schematic structural diagram of the gate rod of the utility model;

[0019] Figure 6 is a schematic side view structural diagram of the gate rod of the utility model;

[0020] In the figure, 1 is a blower; 2 is a main pipeline; 3 is a main support; 4 is a hose; 5 is a gate rod; 6 is a crossbeam group. Detailed Embodiments

[0021] The technical solution of the utility model will be further described below in conjunction with the drawings and specific embodiments.

[0022] The investment casting shell hanging tooling of the utility model includes a drying hanger, a blowing system and a sprue bar 5. The drying hanger includes a main support 3 and several layers of crossbeam groups 6. The crossbeam groups 6 on the same layer are arranged at equal intervals, and the crossbeam groups 6 on adjacent layers are staggered; the sprue bar 5 is clamped inside the track of the crossbeam group 6, or the sprue bar 5 is arranged between adjacent crossbeam groups 6 through a gasket; the blowing system includes a blower 1 and a main pipeline 2 which are connected to each other. The main pipeline 2 is provided with openings at the corresponding positions of each crossbeam group 6, and a hose 4 is arranged on the openings.

[0023] Among them, the main support 3 and the crossbeam group 6 are an integrally welded structure. The main pipeline 2 is connected by socket connection of several sections of PVC pipelines, and the main pipeline 2 is connected to the blower 1 by socket connection. The main pipeline 2 and the main support 3 are connected by rope binding. Two crossbeams on each layer of the drying hanger are in a group, the distance between the crossbeams in the same group is the internal distance, the distance between the crossbeam groups 6 on the same layer is the external distance, and the crossbeam groups 6 on adjacent layers are staggered by half of the external distance. The sprue bar 5 includes a butterfly nut, a threaded rod and a gasket. The maximum diameter of the threaded rod of the sprue bar 5 is smaller than the internal distance of each crossbeam group 6. The external diameter of the circumscribed circle of the gasket of the sprue bar 5 is larger than the external distance between two crossbeam groups 6.

[0024] The investment casting shell hanging tooling of the utility model includes three major parts. The first part is the drying hanger, as Figure 2 , 3 shown. The drying hanger includes a main support 3 and a crossbeam group 6. The main support 3 and the crossbeam group 6 are welded and connected, and the two are perpendicular at 90°. The second part is the blowing system, as Figure 4 shown. The blowing system includes a blower 1, a main pipeline 2 and a hose 4. The blower 1 and the main pipeline 2 are connected by socket connection, and the main pipeline 2 and the hose 4 are connected by hot melting. The third part is the sprue bar 5, which can be clamped in the distance within a single crossbeam group 6 or can be clamped between adjacent crossbeam groups 6 with a gasket. The new blowing system and hanger method are adopted, which not only speeds up the drying of the shells of complex products, but also meets the placement requirements of products of different sizes, improving both the drying efficiency and the utilization rate of the operation space.

[0025] Using the investment casting shell hanging tooling of the utility model, the utilization rate of the shell drying device and the drying speed of the shell are improved; through the dislocation between the upper and lower rows of crossbeam groups and the various placement methods of the sprue bar tooling, the placement requirements of shells of different sizes can be met, and the drying position vacancy caused by the interference between the shells can be avoided; through components such as a blower, a main pipeline and a hose, air can be sent into the complex positions inside the shell, which is difficult to achieve by traditional fans, greatly improving the drying speed of the shell.

Claims

1. A hanging tooling for investment casting shell, characterized in that: It includes a drying hanger, a blowing system and a gate rod (5). The drying hanger includes a main support (3) and several layers of crossbeam groups (6). The crossbeam groups (6) on the same layer are arranged at equal intervals, and the crossbeam groups (6) on adjacent layers are staggered. The gate rod (5) is clamped inside the track of the crossbeam group (6), or the gate rod (5) is arranged between adjacent crossbeam groups (6) through a gasket. The blowing system includes a blower (1) and a main pipeline (2) connected to each other. The main pipeline (2) is provided with openings at positions corresponding to each crossbeam group (6), and a hose (4) is provided on the openings.

2. The investment casting shell hanging tooling according to claim 1, characterized in that: The main support (3) and the crossbeam group (6) are an integrally welded structure.

3. The investment casting shell hanging tooling according to claim 1, wherein: The main pipeline (2) is connected by socket connection of several sections of PVC pipelines, and the main pipeline (2) is connected to the blower (1) by socket connection.

4. The investment casting shell hanging tooling according to claim 1, characterized in that: The main pipeline (2) and the main support (3) are connected by tying with ropes.

5. The investment casting shell hanging tooling according to claim 1, wherein: Two crossbeams on each layer of the drying hanger are in a group. The distance between the crossbeams in the same group is the internal distance, the distance between the crossbeam groups (6) on the same layer is the external distance, and the crossbeam groups (6) on adjacent layers are staggered by half of the external distance.

6. The investment casting shell hanging tooling according to claim 5, characterized in that: The gate rod (5) includes a butterfly nut, a threaded rod and a gasket.

7. The investment casting shell hanging tooling according to claim 6, characterized in that: The maximum diameter of the threaded rod of the gate rod (5) is smaller than the internal distance of each crossbeam group (6).

8. The investment casting shell hanging tooling according to claim 7, wherein: The outer diameter of the circumscribed circle of the gasket of the gate rod (5) is larger than the external distance between two crossbeam groups (6).

Images