Casting sand mold with baking structure

Abstract

The utility model discloses a casting sand mold with a baking structure, and relates to the technical field of casting sand molds, a hot air pipe is of an L-shaped structure, and the hot air pipe is connected with a telescopic pipe in a penetrating manner; a first cavity hot air channel is formed in the right side in the sand mold body, a second cavity hot air channel is connected to the bottom of the first cavity hot air channel in a penetrating mode, the second cavity hot air channel is connected with the bottom of the casting cavity in a penetrating mode, and a cavity hot air channel air outlet is formed in the upper end of the casting cavity in a penetrating mode; hot air is blown to the first cavity hot air channel and the second cavity hot air channel through the hot air pipe, hot air is prevented from passing through a cross gate and a filtering system, hot air temperature loss is small, air pressure is large, a casting mold is effectively baked, dryness of the cavities is guaranteed, and the defects of casting slag inclusion air holes and the like are reduced. And the hot-air blower is prevented from being damaged by heat generated during casting, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting sand molds, in particular to a casting sand mold with a baking structure. Background Art

[0002] The traditional method is to bake from the straight runner of the pouring system. Due to the obstruction of the horizontal runner and the filter plate or the filter net of the pouring system, the hot air passes through the horizontal runner and the filter system, resulting in a decrease in wind pressure and temperature during the hot air baking process, resulting in defects such as casting slag inclusions and pores. Therefore, a casting sand mold with a baking structure is proposed. Utility Model Content

[0003] The utility model aims to solve the defects and shortcomings of the prior art and to provide a foundry sand mold with a baking structure, so as to solve the above problems.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a main body, two front and rear sand mold bodies are arranged oppositely; a casting cavity is arranged in the sand mold body;

[0005] It also contains:

[0006] There are two placing racks, which are fixed relatively to the inner side of the upper end of the left side wall of the box;

[0007] A hot air blower, which is placed in two front and rear fixed frames and connected to an external power supply; an air outlet of the hot air blower is connected to a telescopic pipe;

[0008] The hot air pipe is an "L"-shaped structure, and the hot air pipe is connected with the telescopic pipe through and through; a No. 1 cavity hot air channel is opened on the right side of the sand mold body, and a No. 2 cavity hot air channel is connected through and through the bottom of the No. 1 cavity hot air channel, and the No. 2 cavity hot air channel is connected through and through the bottom of the casting cavity, and an air outlet of the cavity hot air channel is opened through and through the upper end of the casting cavity;

[0009] A No. 1 connecting rod, wherein the No. 1 connecting rod is an "L"-shaped structure, and the upper right end of the No. 1 connecting rod is fixedly connected to the hot air pipe;

[0010] The connecting plate is two in number and is respectively fixedly connected to the upper end of the placement frame. A motor is fixed to the connecting plate on the rear side through a bracket. The motor is connected to an external power supply, and a No. 1 rotating shaft is connected to the output shaft of the motor. A pad is fixed to the connecting plate on the front side, and the front end of the No. 1 rotating shaft is mounted in the pad;

[0011] The sleeve plate is sleeved and fixed on the first rotating shaft; the sleeve plate is a square structure;

[0012] The limiting square frame is sleeved on the sleeve plate, the rear side of the limiting square frame is abutted against the limiting plate, and the lower end of the No. 1 connecting rod is fixed to the bottom of the limiting square frame.

[0013] Preferably, a limiting plate is fixed to the rear side of the sleeve plate, and the limiting plate is sleeved and fixed on the first rotating shaft.

[0014] Preferably, the nut is sleeved on the first rotating shaft through a threaded connection, and the nut is abutted against the limiting frame.

[0015] Preferably, two No. 1 supporting arc blocks are respectively arranged against the right bottom of the hot air duct; a No. 2 connecting rod is fixed to the bottom of the No. 1 supporting arc block, and the No. 2 connecting rod is an "L"-shaped structure, and a No. 2 rotating shaft is fixed to the bottom of the No. 2 connecting rod, and the No. 2 rotating shaft is screwed to the upper end of the right side wall of the closing box through a bearing; a No. 1 spring is sleeved on the No. 2 rotating shaft, the bottom of the No. 1 spring is connected to the closing box, and the upper end of the No. 1 spring is connected to the No. 2 rotating shaft; the No. 1 supporting arc block can rotate under the action of the No. 1 spring to avoid affecting the casting.

[0016] Preferably, the two No. 2 supporting arc blocks are respectively arranged against the left bottom of the hot air duct; a No. 3 connecting rod is fixed to the bottom of the No. 2 supporting arc block, and the No. 3 connecting rod is an "L"-shaped structure, and a No. 3 rotating shaft is fixed to the bottom of the No. 3 connecting rod, and the No. 3 rotating shaft is screwed to the upper end of the left wall of the closing box through a bearing; a No. 2 spring is sleeved on the No. 3 rotating shaft, the bottom of the No. 2 spring is connected to the closing box, and the upper end of the No. 2 spring is connected to the No. 2 rotating shaft; the No. 2 supporting arc block can rotate under the action of the No. 2 spring to avoid affecting the casting.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a casting sand mold with a baking structure, which blows hot air to the hot air channel of the No. 1 cavity and the hot air channel of the No. 2 cavity through a hot air pipe, thereby preventing the hot air from passing through the cross runner and the filtration system, with small hot air temperature loss and high wind pressure, so that the mold is effectively baked, ensuring the dryness of the cavity and reducing defects such as casting slag inclusions and pores; it avoids the heat generated during casting from damaging the hot air blower, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 yes Figure 1Enlarged view of part A in .

[0021] Figure 3 yes Figure 1 Enlarged view of part B in .

[0022] Figure 4 It is a structural schematic diagram of the combined box at the rear side of the utility model.

[0023] Description of reference numerals:

[0024] Assembly box 1, sand mold body 2, casting cavity 2-1, No. 1 cavity hot air channel 2-2, No. 2 cavity hot air channel 2-3, cavity hot air channel air outlet 2-4, placement rack 3, hot air blower 4, telescopic tube 5, hot air duct 6, No. 1 connecting rod 7, connecting plate 8, motor 9, No. 1 rotating shaft 10, pad 11, sleeve plate 12, limit plate 13, limit frame 14, nut 15, No. 1 supporting arc block 16, No. 2 connecting rod 17, No. 2 rotating shaft 18, No. 1 spring 19, No. 2 supporting arc block 20, No. 3 connecting rod 21, No. 3 rotating shaft 22, No. 2 spring 23. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] See also Figure 1-4 It comprises a combination box 1 and a sand mold body 2; two combination boxes 1 are arranged front and back oppositely, the combination box 1 has a built-in sand mold body 2, and the front and back two sand mold bodies 2 are arranged oppositely; a casting cavity 2-1 is provided in the sand mold body 2;

[0027] It also contains:

[0028] The placing rack 3 is two in number and is fixed relatively to the inner side of the upper end of the left side wall of the combined box 1 by bolts;

[0029] A hot air blower 4 is placed in two front and rear fixing frames, and the hot air blower 4 is connected to an external power supply. The specific model of the hot air blower 4 is purchased and installed directly from the market according to actual use requirements, and a telescopic pipe 5 is connected to the air outlet of the hot air blower 4;

[0030] A hot air pipe 6 is an "L"-shaped structure, and the hot air pipe 6 is connected with the telescopic pipe 5 through a hole; a first cavity hot air channel 2-2 is provided on the right side of the sand mold body 2, and a second cavity hot air channel 2-3 is connected through the bottom of the first cavity hot air channel 2-2, and the second cavity hot air channel 2-3 is connected through the bottom of the casting cavity 2-1, and a cavity hot air channel outlet 2-4 is provided through the upper end of the casting cavity 2-1;

[0031] A No. 1 connecting rod 7, wherein the No. 1 connecting rod 7 is an "L"-shaped structure, and the upper right end of the No. 1 connecting rod 7 is fixedly connected to the hot air pipe 6;

[0032] The connecting plate 8 is two in number and is respectively fixedly connected to the upper end of the placement frame 3. A motor 9 is fixed to the connecting plate 8 on the rear side through a bracket. The motor 9 is connected to an external power supply, and a first rotating shaft 10 is connected to the output shaft of the motor 9. A pad 11 is fixed to the connecting plate 8 on the front side through bolts, and the front end of the first rotating shaft 10 is mounted in the pad 11.

[0033] The sleeve plate 12 is sleeved and fixed on the first rotating shaft 10; the sleeve plate 12 is a square structure, and the rear side of the sleeve plate 12 is fixed with a limit plate 13 by bolts, and the limit plate 13 is sleeved and fixed on the first rotating shaft 10;

[0034] A limiting frame 14, wherein the limiting frame 14 is sleeved on the sleeve plate 12, the rear side of the limiting frame 14 is abutted against the limiting plate 13, and the lower end of the No. 1 connecting rod 7 is fixed to the bottom of the limiting frame 14;

[0035] A nut 15, wherein the nut 15 is sleeved on the first rotating shaft 10 through a threaded connection, and the nut 15 is abutted against the limiting frame 14;

[0036] A No. 1 support arc block 16, wherein the number of the No. 1 support arc blocks 16 is two, and they are respectively arranged against the right bottom of the hot air pipe 6; a No. 2 connecting rod 17 is fixed to the bottom of the No. 1 support arc block 16 by bolts, and the No. 2 connecting rod 17 is an "L"-shaped structure, and a No. 2 rotating shaft 18 is fixed to the bottom of the No. 2 connecting rod 17, and the No. 2 rotating shaft 18 is screwed to the upper end of the right side wall of the closing box 1 through a bearing; a No. 1 spring 19 is sleeved on the No. 2 rotating shaft 18, and the bottom of the No. 1 spring 19 is connected to the closing box 1, and the upper end of the No. 1 spring 19 is connected to the No. 2 rotating shaft 18;

[0037] No. 2 supporting arc block 20, the number of the No. 2 supporting arc block 20 is two, and they are respectively arranged against the left bottom of the hot air duct 6; the bottom of the No. 2 supporting arc block 20 is fixed with a No. 3 connecting rod 21 by bolts, the No. 3 connecting rod 21 is an "L"-shaped structure, and the bottom of the No. 3 connecting rod 21 is fixed with a No. 3 rotating shaft 22, and the No. 3 rotating shaft 22 is screwed to the upper end of the left side wall of the closing box 1 through a bearing; a No. 2 spring 23 is sleeved on the No. 3 rotating shaft 22, the bottom of the No. 2 spring 23 is connected to the closing box 1, and the upper end of the No. 2 spring 23 is connected to the No. 2 rotating shaft 18.

[0038] The working principle of this specific embodiment is as follows: after the sand mold body 2 is cast, it is placed in the corresponding assembly box 1, the hot air blower 4 is placed in the placement frame 3 on one side, the limiting frame 14 is sleeved on the sleeve plate 12, the nut 15 is screwed on and abutted against the limiting frame 14, the two assembly boxes 1 are spliced, the front end of the No. 1 rotating shaft 10 is inserted on the pad 11, the motor 9 is started, the No. 1 rotating shaft 10 rotates, driving the hot air pipe 6 to rotate, so that the lower right end of the hot air pipe 6 is inserted in the hot air channel 2-2 of the No. 1 cavity, and the No. 1 cavity is rotated. The supporting arc block 16 and the second supporting arc block 20 play a supporting role; start the hot air blower 4, and blow hot air to the hot air channel 2-2 of the first cavity and the hot air channel 2-3 of the second cavity through the hot air pipe 6 to prevent the hot air from passing through the cross runner and the filtration system. The hot air temperature loss is small, the wind pressure is large, the casting is effectively baked, the drying of the cavity is ensured, and defects such as slag inclusions and pores in the casting are reduced; after drying is completed, start the motor 9 to move out the hot air pipe 6, separate the assembly box 1, and take out the hot air blower 4, so as to facilitate the pouring of molten metal into the sand mold body 2.

[0039] After adopting the above structure, the beneficial effects of this specific implementation are:

[0040] 1. There are hot air passages 2-2 for cavity No. 1 and 2-3 for cavity No. 2. Hot air is blown to hot air passages 2-2 for cavity No. 1 and 2-3 for cavity No. 2 through hot air pipe 6 to prevent hot air from passing through the runner and filtering system. The hot air temperature loss is small, the air pressure is large, the casting is effectively baked, the cavity is ensured to be dry, and defects such as slag inclusion and pores in casting are reduced.

[0041] 2. A removable hot air blower 4 is provided to prevent the heat generated during casting from damaging the hot air blower 4, thereby improving practicality.

[0042] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A casting sand mold with a baking structure, comprising a combination box (1) and a sand mold body (2); two combination boxes (1) are arranged opposite to each other in front and back, the combination box (1) contains a sand mold body (2), and the front and back sand mold bodies (2) are arranged opposite to each other; a casting cavity (2-1) is provided in the sand mold body (2); It is characterized in that It also contains: A placement rack (3), wherein the number of the placement racks (3) is two and they are fixed relatively to the inner side of the upper end of the left side wall of the combined box (1) in a front-to-back manner; A hot air blower (4), the hot air blower (4) being placed in two front and rear fixing frames, the hot air blower (4) being connected to an external power source; an air outlet end of the hot air blower (4) being connected to a telescopic tube (5); A hot air pipe (6), wherein the hot air pipe (6) is an "L"-shaped structure, and the hot air pipe (6) is connected through the telescopic pipe (5); a first cavity hot air channel (2-2) is provided on the right side of the sand mold body (2); a second cavity hot air channel (2-3) is connected through the bottom of the first cavity hot air channel (2-2); the second cavity hot air channel (2-3) is connected through the bottom of the casting cavity (2-1); and a cavity hot air channel outlet (2-4) is provided through the upper end of the casting cavity (2-1); A No. 1 connecting rod (7), wherein the No. 1 connecting rod (7) is an "L"-shaped structure, and the upper right end of the No. 1 connecting rod (7) is fixedly connected to the hot air pipe (6); A connecting plate (8), wherein the number of the connecting plates (8) is two and they are respectively fixedly connected to the upper end of the placement frame (3); a motor (9) is fixed to the connecting plate (8) on the rear side via a bracket, the motor (9) is connected to an external power supply, and a first rotating shaft (10) is connected to the output shaft of the motor (9); a pad (11) is fixed to the connecting plate (8) on the front side, and the front end of the first rotating shaft (10) is mounted in the pad (11); A sleeve plate (12), wherein the sleeve plate (12) is sleeved and fixed on the first rotating shaft (10); the sleeve plate (12) is a square structure; The limiting frame (14) is sleeved on the sleeve plate (12), the rear side of the limiting frame (14) is abutted against the limiting plate (13), and the lower end of the first connecting rod (7) is fixed to the bottom of the limiting frame (14).

2. The casting sand mold with a baked structure according to claim 1, characterized in that: A limiting plate (13) is fixed to the rear side of the sleeve plate (12), and the limiting plate (13) is sleeved and fixed on the first rotating shaft (10).

3. The casting sand mold with a baked structure according to claim 1, characterized in that: The nut (15) is sleeved on the first rotating shaft (10) through a threaded connection, and the nut (15) is abutted against the limiting frame (14).

4. The casting sand mold with a baked structure according to claim 1, characterized in that: Two No. 1 supporting arc blocks (16) are respectively disposed against the right bottom of the hot air pipe (6); a No. 2 connecting rod (17) is fixed to the bottom of the No. 1 supporting arc block (16); the No. 2 connecting rod (17) is an "L"-shaped structure; a No. 2 rotating shaft (18) is fixed to the bottom of the No. 2 connecting rod (17); the No. 2 rotating shaft (18) is screwed to the upper end of the right side wall of the closing box (1) through a bearing; a No. 1 spring (19) is sleeved on the No. 2 rotating shaft (18); the bottom of the No. 1 spring (19) is connected to the closing box (1), and the upper end of the No. 1 spring (19) is connected to the No. 2 rotating shaft (18).

5. The casting sand mold with a baked structure according to claim 1, characterized in that: Two No. 2 supporting arc blocks (20) are respectively disposed against the left bottom of the hot air pipe (6); a No. 3 connecting rod (21) is fixed to the bottom of the No. 2 supporting arc block (20); the No. 3 connecting rod (21) is an "L"-shaped structure; a No. 3 rotating shaft (22) is fixed to the bottom of the No. 3 connecting rod (21); the No. 3 rotating shaft (22) is screwed to the upper end of the left wall of the closing box (1) through a bearing; a No. 2 spring (23) is sleeved on the No. 3 rotating shaft (22); the bottom of the No. 2 spring (23) is connected to the closing box (1), and the upper end of the No. 2 spring (23) is connected to the No. 2 rotating shaft (18).

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