CN218425473U

CN218425473U - Casting sand box adopting V method

Info

Publication number: CN218425473U
Application number: CN202222466519.1U
Authority: CN
Inventors: 樊双七; 夏卫华
Original assignee: Chizhou Hongwei Metal Recycling Technology Co ltd
Current assignee: Chizhou Hongwei Metal Recycling Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-02-03
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a V method casting sand box, including the sand box main part, butt joint pipe is installed to the tip of sand box main part, and it has the vacuum exhaust tube to peg graft in the butt joint pipe, and the spacing groove has been seted up to vacuum exhaust tube tip symmetry, installs the connector on the vacuum exhaust tube, and the ear piece is installed to the lateral wall symmetry of connector, installs U type piece to the tip lateral wall symmetry of pipe, rotates on the U type piece and installs the threaded rod, and the threaded rod is pegged graft in the ear piece, and the tip screw thread of threaded rod installs the nut, and the tip symmetry of butt joint pipe is equipped with spacing subassembly, and beneficial effect does: the utility model discloses the vacuum exhaust tube has been installed to the plug-in type on the butt joint pipe of sand box main part tip to set up the butt joint on the vacuum exhaust tube, and set up the sealing ring on the butt joint, can increase the leakproofness of vacuum exhaust tube and butt joint pipe, avoid gas leakage.

Description

Casting sand box adopting V method

Technical Field

The utility model relates to a V method casting field specifically is a V method casting sand box.

Background

Vacuum forming is adopted in both V-method casting and lost foam casting, but the technological processes of the V-method casting and the lost foam casting are greatly different, and the Vacuum process casting is named after the word head 'V' of the English Vacuum. The method is different from the traditional sand casting and has the biggest advantage that no adhesive is used, the V-method casting is to seal a sand box by using a plastic film, air in the mould is pumped out by a vacuum pumping system, pressure difference exists between the inside and the outside of the mould, dry sand is compacted to form a required cavity, a casting is solidified by core setting, mould assembling, pouring and vacuum pumping, negative pressure is relieved, and the casting sand is scattered along with the casting sand to obtain the casting.

At present, V method casting sand box when being connected with the vacuum exhaust tube, the tradition is that directly peg graft the vacuum exhaust tube with the interface of butt joint pipe, and when using, the vacuum tube pivoted condition appears in the ease, leads to the vacuum exhaust tube not hard up with being connected of butt joint pipe, and the phenomenon of gas leakage appears, is unfavorable for casting vacuum environment's in the sand box save.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a V method casting sand box to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a V method casting sand box, includes the sand box main part, and the butt joint pipe is installed to the tip of sand box main part, and it has the vacuum exhaust tube to peg graft in the butt joint pipe, and the spacing groove has been seted up to vacuum exhaust tube tip symmetry, installs the connector on the vacuum exhaust tube, and the ear piece is installed to the lateral wall symmetry of connector, and the U type piece is installed to the tip lateral wall symmetry of butt joint pipe, rotates on the U type piece and installs the threaded rod, and the threaded rod is pegged graft in the ear piece, and the tip screw thread of threaded rod installs the nut, and the tip symmetry of butt joint pipe is equipped with spacing subassembly.

Preferably, the end part of the connecting head is integrally provided with a sealing ring.

Preferably, the end part of the butt joint pipe is provided with a sealing groove, and the sealing groove is matched with the sealing ring.

Preferably, the end of the butt joint pipe is provided with a filter screen plate.

Preferably, the inner wall of the end part of the butt joint pipe is provided with a sealing ring, and the sealing ring is provided with a plurality of groups which are in linear uniform equidistant arrays.

Preferably, the limiting assembly comprises a lock rod frame, a lock rod shaft, a spring and a limiting ring, the lock rod frame is symmetrically installed on the butt joint pipe, the lock rod shaft is inserted into the lock rod frame, the lower end of the lock rod shaft is inserted into the butt joint pipe, the limiting ring is installed on the lock rod shaft, the spring is arranged on the limiting ring, and the spring is sleeved on the lock rod shaft.

Preferably, the upper end of the lock rod shaft is rotatably provided with a pull ring, and the upper end of the lock rod frame is provided with a limiting plate.

Preferably, the side wall of the butt joint pipe is symmetrically provided with a clamping block, and the clamping block and the U-shaped block are on the same straight line.

Preferably, the damping block is adhered to the inner wall of the clamping block, and the cross section of the damping block is arc-shaped.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses vacuum exhaust tube has been installed to plug-in type on the butt joint pipe of sand box main part tip to set up the butt joint on vacuum exhaust tube, and set up the sealing ring on the butt joint, can increase vacuum exhaust tube and butt joint pipe's leakproofness, avoid leaking gas, set up spacing subassembly on butt joint pipe simultaneously, seted up the spacing groove at vacuum exhaust tube's tip, vacuum exhaust tube pegs graft and keeps stable state in butt joint intraductal back, guarantees the compactness of connecting.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a vacuum pump tube;

FIG. 3 is a schematic view of a butt joint pipe;

fig. 4 is a schematic view of a part of the structure of the present invention.

In the figure: the sand box comprises a sand box main body 1, a butt joint pipe 2, a sealing groove 21, a filter screen plate 22, a sealing ring 23, a vacuum exhaust pipe 3, a limiting groove 31, a connector 4, a sealing ring 41, an ear block 5, a U-shaped block 6, a threaded rod 7, a nut 8, a lock rod frame 9, a lock rod shaft 10, a spring 11, a limiting ring 12, a pull ring 13, a limiting plate 14, a clamping block 15 and a damping block 151.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts, all belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a V method casting sand box, including sand box main part 1, butt joint pipe 2 is installed to the tip of sand box main part 1, it has vacuum exhaust tube 3 to peg graft in butt joint pipe 2, spacing groove 31 has been seted up to vacuum exhaust tube 3 tip symmetry, filter plate 22 is installed to butt joint pipe 2's tip, filter plate 22 can avoid the molding sand to carry out in the vacuum exhaust tube 3, install connector 4 on the vacuum exhaust tube 3, ear piece 5 is installed to connector 4's lateral wall symmetry, U type piece 6 is installed to butt joint pipe 2's tip lateral wall symmetry, it has threaded rod 7 to rotate on the U type piece 6, threaded rod 7 pegs graft in ear piece 5, and threaded rod 7's tip screw thread installs nut 8, butt joint pipe 2's tip symmetry is equipped with spacing subassembly, when butt joint pipe 2 is connected with vacuum exhaust tube 3, at first rotate threaded rod 7, then peg graft vacuum exhaust tube 3 in butt joint pipe 2, while 7 pegs graft in ear piece 5, spacing subassembly card is in sealing ring 41, realize vacuum exhaust tube 3's fixed, at last screw nut 8 is screwed up again, realize the zonulae occludens of vacuum exhaust tube 3 and butt joint pipe 2, avoid the condition of gas leakage.

The tip integral type of connector 4 is equipped with sealing ring 41, seal groove 21 has been seted up to the tip of butt joint pipe 2, and seal groove 21 and sealing ring 41 phase-match, can increase connector 4 and the connection leakproofness of butt joint pipe 2 through seal groove 21 and sealing ring 41, the tip inner wall of butt joint pipe 2 is equipped with sealing washer 23, sealing washer 23 is provided with the multiunit, be the even equidistance array of straight line, can increase the leakproofness of being connected of butt joint pipe 2 and vacuum exhaust tube 3 through sealing washer 23.

The limiting assembly is composed of a lock rod frame 9, a lock rod shaft 10, a spring 11 and a limiting ring 12, the lock rod frame 9 is symmetrically installed on the butt joint pipe 2, a lock rod shaft 10 is inserted into the lock rod frame 9, the lower end of the lock rod shaft 10 is inserted into the butt joint pipe 2, the limiting ring 12 is installed on the lock rod shaft 10, the spring 11 is arranged on the limiting ring 12, the spring 11 is sleeved on the lock rod shaft 10, when the vacuum exhaust pipe 3 is inserted into the butt joint pipe 2, the limiting groove 31 is in contact with the lock rod shaft 10, the lock rod shaft 10 is clamped in the limiting groove 31 under the action of the spring 11, fixing of the vacuum exhaust pipe 3 is achieved, a pull ring 13 is rotatably installed at the upper end of the lock rod shaft 10, a limiting plate 14 is installed at the upper end of the lock rod frame 9, when the vacuum exhaust pipe is used, the pull ring 13 is pulled and clamped in the limiting plate 14, and separation of the vacuum exhaust pipe 3 and the butt joint pipe 2 is facilitated.

Fixture block 15 is symmetrically installed on the side wall of butt joint pipe 2, fixture block 15 and U-shaped block 6 are on the same straight line, damping block 151 is pasted on the inner wall of fixture block 15, the cross-section of damping block 151 is arc-shaped, and threaded rod 7 is convenient to clamp in fixture block 15 when not in use through damping block 151 and fixture block 15.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A V-process casting flask comprises a flask main body (1);

the method is characterized in that: the end part of the sand box main body (1) is provided with a butt joint pipe (2), and a vacuum exhaust pipe (3) is inserted in the butt joint pipe (2);

the end part of the vacuum exhaust tube (3) is symmetrically provided with limit grooves (31);

the vacuum extraction pipe (3) is provided with a connector (4), and the side wall of the connector (4) is symmetrically provided with lug blocks (5);

u-shaped blocks (6) are symmetrically arranged on the side wall of the end part of the butt joint pipe (2), a threaded rod (7) is rotatably arranged on each U-shaped block (6), the threaded rod (7) is inserted into the lug block (5), and a nut (8) is arranged on the end part of the threaded rod (7) in a threaded manner;

the end parts of the butt joint pipes (2) are symmetrically provided with limiting assemblies.

2. The V-process casting flask according to claim 1, wherein: the end part of the connector (4) is integrally provided with a sealing ring (41).

3. The V-process casting flask according to claim 1, wherein: the end part of the butt joint pipe (2) is provided with a sealing groove (21), and the sealing groove (21) is matched with the sealing ring (41).

4. The V-process casting flask according to claim 1, wherein: and a filter screen plate (22) is arranged at the end part of the butt joint pipe (2).

5. A V-process casting flask according to claim 1, wherein: the inner wall of the end part of the butt joint pipe (2) is provided with a sealing ring (23), and the sealing ring (23) is provided with a plurality of groups and is an array with straight lines and uniform equal intervals.

6. A V-process casting flask according to claim 1, wherein: the limiting assembly is composed of a lock rod frame (9), a lock rod shaft (10), a spring (11) and a limiting ring (12), the lock rod frame (9) is symmetrically installed on the butt joint pipe (2), the lock rod shaft (10) is inserted into the lock rod frame (9), the lower end of the lock rod shaft (10) is inserted into the butt joint pipe (2), the limiting ring (12) is installed on the lock rod shaft (10), the spring (11) is arranged on the limiting ring (12), and the spring (11) is sleeved on the lock rod shaft (10).

7. A V-process casting flask according to claim 6, wherein: the upper end of the lock rod shaft (10) is rotatably provided with a pull ring (13), and the upper end of the lock rod frame (9) is provided with a limit plate (14).

8. A V-process casting flask according to claim 1, wherein: the side wall of the butt joint pipe (2) is symmetrically provided with clamping blocks (15), and the clamping blocks (15) and the U-shaped block (6) are on the same straight line.

9. A V-process casting flask according to claim 8, wherein: the damping block (151) is adhered to the inner wall of the clamping block (15), and the section of the damping block (151) is arc-shaped.