Exhaust net structure of casting sand core making machine

Abstract

The utility model discloses an exhaust net structure of a casting sand core making machine, which is mounted on a pipeline between an air pump and a sand hopper on the core making machine and comprises an upper mounting seat and a lower mounting seat which are connected with the pipeline, and an exhaust net plate for filtering sand is arranged between the upper mounting seat and the lower mounting seat. A first air vent and a second air vent which are communicated with the pipeline are formed in the upper mounting seat and the lower mounting seat respectively, and both the first air vent and the second air vent correspond to the exhaust screen plate. According to the exhaust net structure of the casting sand core making machine, an upper mounting seat, a lower mounting seat and an exhaust net plate are arranged on a pipeline between an air pump and a sand hopper on the core making machine, and a first air vent and a second air vent which communicate with the pipeline and correspond to the exhaust net plate are formed in the upper mounting seat and the lower mounting seat correspondingly; sand can be conveniently filtered and blocked when gas flows back and is discharged, and the sand is prevented from flowing into an air pump and the like to affect use.

Description

Technical Field

[0001] The utility model relates to the field of core making machines, in particular to an exhaust net structure of a casting sand core making machine. Background Art

[0002] Sand cores are often made through sand casting technology. Core making equipment generally uses a core making machine. The current core making machine includes a core making mold, a sand adding mechanism and an air adding mechanism. The sand adding mechanism is connected with a sand shooting plate. Sand adding is generally achieved through an air pump. The air pump is connected to the sand hopper through a pipeline, and the sand hopper is connected to the sand shooting plate. The air pump blows the sand in the sand hopper to the sand shooting plate, and then the sand shooting plate is shot into the mold. The air adding mechanism is connected with an air plate. After adding sand, air is added to the core making mold through the air plate to improve the curing effect of the sand core. Finally, the prepared brake disc sand core is taken out of the core making mold.

[0003] In the prior art, the air pump and the sand hopper are connected by a pipeline. When blowing, pressure is applied to the sand hopper. Although the air pressure realizes the injection of sand, the injected gas also needs to be discharged. Therefore, the gas will flow back to the pipeline and then be discharged by the valve on the pipeline. However, when the gas flows back and is discharged, sand may be brought into the pipeline, thereby affecting the use of the pipeline and the air pump.

[0004] Therefore, it is necessary to propose an exhaust net structure of a casting sand core making machine to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide an exhaust net structure of a casting sand core making machine, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An exhaust net structure of a casting sand core making machine is installed on a pipeline between an air pump and a sand hopper on the core making machine, and includes an upper mounting seat and a lower mounting seat connected to the pipeline, an exhaust net plate for filtering sand is arranged between the upper mounting seat and the lower mounting seat, and a first air vent and a second air vent connected to the pipeline are respectively arranged on the upper mounting seat and the lower mounting seat, and the first air vent and the second air vent both correspond to the exhaust net plate.

[0008] Preferably, the exhaust mesh plate is fixed between the upper mounting seat and the lower mounting seat by a mounting mechanism, and the mounting mechanism includes an exhaust mesh mounting plate and an exhaust mesh pressure plate arranged opposite to each other, and the exhaust mesh mounting plate and the exhaust mesh pressure plate are movably arranged on the inner side between the upper mounting seat and the lower mounting seat, and the exhaust mesh plate is arranged between the exhaust mesh mounting plate and the exhaust mesh pressure plate and is pressed to the inner side of the exhaust mesh mounting plate by the exhaust mesh pressure plate.

[0009] Preferably, the exhaust net mounting plate and the exhaust net pressing plate are locked and fixed around their peripheries by first hexagon socket screws.

[0010] Preferably, a mounting groove is provided on the periphery of one side of the exhaust net mounting plate close to the exhaust net pressing plate, and a sealing gasket for sealing is installed on the inner side of the mounting groove.

[0011] Preferably, one end of the exhaust net mounting plate extends outward and is fixed with a handle for pulling the exhaust net mounting plate and the exhaust net pressing plate for overall displacement.

[0012] Preferably, the exhaust mesh mounting plate and the exhaust mesh pressing plate are both provided with through holes corresponding to the holes on the exhaust mesh plate.

[0013] Preferably, two opposite sides of the upper mounting seat are symmetrically fixedly connected to a first mounting plate by a second hexagon socket screw, two opposite sides of the lower mounting seat are symmetrically fixedly connected to a second mounting plate corresponding to the first mounting plate by a second hexagon socket screw, and the first mounting plate and the second mounting plate are locked and fixed by a third hexagon socket screw;

[0014] The four corners of the upper mounting seat and the lower mounting seat are locked and fixed by bolts.

[0015] Beneficial Effects

[0016] Compared with the prior art, the utility model provides an exhaust net structure of a casting sand core making machine, which has the following beneficial effects:

[0017] 1. The exhaust net structure of the casting sand core making machine is provided with an upper mounting seat, a lower mounting seat and an exhaust net plate on the pipeline between the air pump and the sand bucket on the core making machine, and the upper mounting seat and the lower mounting seat are respectively provided with a first vent and a second vent connected with the pipeline and corresponding to the exhaust net plate, so that the sand can be filtered and blocked when the gas refluxes and is discharged, and the sand is prevented from flowing into the air pump and affecting the use. The exhaust net mounting plate and the exhaust net pressing plate are convenient for fixing the exhaust net plate, and the handle is convenient for taking out the exhaust net mounting plate and the exhaust net pressing plate as a whole, so as to facilitate the maintenance of the exhaust net plate, and the sealing gasket can ensure the sealing between the exhaust net mounting plate and the upper mounting seat and the lower mounting seat.

[0018] 2. The exhaust net structure of the casting sand core making machine, the first mounting plate, the second mounting plate, the third hexagon socket screw, the bolt, and the second hexagon socket screw can ensure stability between the upper mounting seat and the lower mounting seat, and the installation is firm and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2It is a side view structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0023] In the figure: 1. upper mounting seat; 2. lower mounting seat; 3. exhaust mesh mounting plate; 4. exhaust mesh pressure plate; 5. exhaust mesh plate; 6. through hole; 7. sealing gasket; 8. first air vent; 9. second air vent; 10. first hexagon socket screw; 11. mounting groove; 12. first mounting plate; 13. second mounting plate; 14. second hexagon socket screw; 15. third hexagon socket screw; 16. bolt; 17. handle. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-4 As shown, an exhaust net structure of a casting sand core making machine is installed on a pipeline between an air pump and a sand hopper on the core making machine, and includes an upper mounting seat 1 and a lower mounting seat 2 connected to the pipeline, an exhaust net plate 5 for filtering sand is arranged between the upper mounting seat 1 and the lower mounting seat 2, and a first air vent 8 and a second air vent 9 connected to the pipeline are respectively arranged on the upper mounting seat 1 and the lower mounting seat 2, and the first air vent 8 and the second air vent 9 both correspond to the exhaust net plate 5.

[0026] Furthermore, to facilitate the fixation and maintenance of the exhaust mesh plate 5, the exhaust mesh plate 5 is fixed between the upper mounting seat 1 and the lower mounting seat 2 by a mounting mechanism, and the mounting mechanism includes an exhaust mesh mounting plate 3 and an exhaust mesh pressure plate 4 which are relatively arranged, and the exhaust mesh mounting plate 3 and the exhaust mesh pressure plate 4 are movably arranged on the inner side between the upper mounting seat 1 and the lower mounting seat 2, and the exhaust mesh mounting plate 3 and the exhaust mesh pressure plate 4 are locked and fixed around their peripheries by first hexagon socket screws 10, the exhaust mesh plate 5 is arranged between the exhaust mesh mounting plate 3 and the exhaust mesh pressure plate 4 and is pressed to the inner side of the exhaust mesh mounting plate 3 by the exhaust mesh pressure plate 4, and one end of the exhaust mesh mounting plate 3 extends outward and is fixed with a handle 17 for pulling the exhaust mesh mounting plate 3 and the exhaust mesh pressure plate 4 for overall displacement.

[0027] In order to increase the sealing between the exhaust mesh plate 5 and the upper mounting seat 1 and the lower mounting seat 2, a mounting groove 11 is arranged on the periphery of one side of the exhaust mesh mounting plate 3 close to the exhaust mesh pressure plate 4, and a sealing gasket 7 for sealing is installed inside the mounting groove 11.

[0028] In order to facilitate the circulation of gas, through holes 6 corresponding to the holes on the exhaust mesh plate 5 are provided on the exhaust mesh installation plate 3 and the exhaust mesh pressure plate 4.

[0029] In order to facilitate the fixing of the upper mounting seat 1 and the lower mounting seat 2, two opposite sides of the upper mounting seat 1 are symmetrically fixedly connected with the first mounting plate 12 by second hexagon socket screws 14, and two opposite sides of the lower mounting seat 2 are symmetrically fixedly connected with the second mounting plate 13 corresponding to the first mounting plate 12 by second hexagon socket screws 14, and the first mounting plate 12 and the second mounting plate 13 are locked and fixed by third hexagon socket screws 15;

[0030] Furthermore, the four corners of the upper mounting seat 1 and the lower mounting seat 2 are locked and fixed by bolts 16 .

[0031] It should be noted that the utility model is an exhaust net structure of a casting sand core making machine. When in use, the upper mounting seat 1 and the lower mounting seat 2 are respectively installed on the pipeline between the air pump and the sand bucket of the core making machine, preferably installed through flanges. The upper mounting seat 1 and the lower mounting seat 2 are locked by bolts 16, and the first mounting plate 12 and the second mounting plate 13 on the side are locked by the third hexagon socket screw 15. Then, the exhaust net mounting plate 3, the exhaust net pressure plate 4, and the exhaust net plate 5 are inserted into the upper mounting seat 1 and the lower mounting seat 2 through the handle 17, and the sealing gasket 7 is used for sealing. The gas can circulate through the first vent 8, the second vent 9, and the through hole 6. The gas can be discharged directly when it is refluxed. The sand brought in is blocked by the exhaust net plate 5 and will not enter the interior of the air pump, etc., thereby avoiding affecting the use. The device has a simple and compact structure, is easy to install and maintain, and has good sealing performance, and is suitable for wide promotion.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An exhaust net structure of a casting sand core making machine, installed on the pipeline between the air pump and the sand hopper on the core making machine, characterized in that: The invention comprises an upper mounting seat (1) and a lower mounting seat (2) connected to a pipeline, an exhaust mesh plate (5) for filtering sand is arranged between the upper mounting seat (1) and the lower mounting seat (2), and a first vent (8) and a second vent (9) connected to the pipeline are respectively arranged on the upper mounting seat (1) and the lower mounting seat (2), and the first vent (8) and the second vent (9) both correspond to the exhaust mesh plate (5).

2. The exhaust net structure of a casting sand core making machine according to claim 1, characterized in that: The exhaust mesh plate (5) is fixed between the upper mounting seat (1) and the lower mounting seat (2) by means of a mounting mechanism, wherein the mounting mechanism comprises an exhaust mesh mounting plate (3) and an exhaust mesh pressure plate (4) which are arranged opposite to each other, wherein the exhaust mesh mounting plate (3) and the exhaust mesh pressure plate (4) are movably arranged on the inner side between the upper mounting seat (1) and the lower mounting seat (2), and the exhaust mesh plate (5) is arranged between the exhaust mesh mounting plate (3) and the exhaust mesh pressure plate (4) and is pressed against the inner side of the exhaust mesh mounting plate (3) by means of the exhaust mesh pressure plate (4).

3. The exhaust net structure of a casting sand core making machine according to claim 2, characterized in that: The exhaust net mounting plate (3) and the exhaust net pressing plate (4) are locked and fixed around their peripheries by means of first hexagon socket screws (10).

4. The exhaust net structure of a casting sand core making machine according to claim 3, characterized in that: A mounting groove (11) is arranged on the periphery of one side of the exhaust net mounting plate (3) close to the exhaust net pressing plate (4), and a sealing gasket (7) for sealing is installed on the inner side of the mounting groove (11).

5. The exhaust net structure of a casting sand core making machine according to claim 4, characterized in that: One end of the exhaust net installation plate (3) extends outward and is fixed with a handle (17) for pulling and displacing the exhaust net installation plate (3) and the exhaust net pressing plate (4) as a whole.

6. The exhaust net structure of a casting sand core making machine according to claim 5, characterized in that: The exhaust net installation plate (3) and the exhaust net pressing plate (4) are both provided with through holes (6) corresponding to the holes on the exhaust net plate (5).

7. The exhaust net structure of a casting sand core making machine according to claim 6, characterized in that: The upper mounting seat (1) has two opposite sides symmetrically fixedly connected to a first mounting plate (12) by means of second hexagon socket screws (14), and the lower mounting seat (2) has two opposite sides symmetrically fixedly connected to a second mounting plate (13) corresponding to the first mounting plate (12) by means of second hexagon socket screws (14), and the first mounting plate (12) and the second mounting plate (13) are locked and fixed by means of third hexagon socket screws (15); The four corners of the upper mounting seat (1) and the lower mounting seat (2) are locked and fixed by bolts (16).

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