CN220104918U - Sand core detection device - Google Patents

Abstract

The utility model discloses a sand core detection device, relates to the technical field of casting sand core detection, and aims to solve the problem that a device for accurately detecting a sand core is lacking in the prior art.

Description

Sand core detection device

Technical Field

The utility model relates to the technical field of casting sand core detection, in particular to a sand core detection device.

Background

The sand core is generally formed by mixing materials such as casting sand, a binder, auxiliary substances and the like according to a certain proportion, when the sand core is used, most of the sand core can be surrounded by high-temperature liquid metal, and under the action of high temperature, gas and condensate can be generated in the sand core, and the gas and the condensate can cause pinholes or bubbles on castings, so that the quality of the castings is seriously affected.

The amount of binder, the bonding mode, the type of binder and the like in the sand core can influence the amount of gas and condensate generated by the sand core, so that before the sand core is used for casting, the sand core is very necessary to be detected so as to know how much gas and condensate are generated by the sand core in the casting process, and further control the quality of the casting. However, a device capable of accurately detecting the sand core is not disclosed in the prior art.

Disclosure of Invention

In order to solve the problems, namely the lack of a device for accurately detecting the sand core in the prior art, the utility model provides a sand core detection device which comprises a heating cylinder, wherein a cylinder cover is connected onto the heating cylinder in a sealing manner, a collecting device is communicated onto the cylinder cover, and a vacuum pump is communicated onto the side wall of the heating cylinder.

Through adopting above-mentioned technical scheme, the vacuum pump can be with heating cylinder and collection device inside evacuation to the vacuum, and the heating cylinder can heat to the high temperature state, and then places the psammitolite and heat in the heating cylinder, high temperature environment when can simulate casting, makes gas and condensate produced in the psammitolite, because collection device is linked together with the cover, so gas and condensate produced can be collected into collection device in, further can carry out the detection of content to the realization produces the accurate detection of gas and condensate content in the psammitolite.

The utility model is further provided with: heating strips are arranged in the side wall and the bottom wall of the heating cylinder.

Through adopting above-mentioned technical scheme, the heating band can heat the inside of heating cylinder, and then realizes the high temperature environment when the simulation casting.

The utility model is further provided with: the collecting device comprises a collecting pipe, one end of the collecting pipe is provided with a valve, and one end of the valve, which is away from the collecting pipe, is communicated with the cylinder cover; the other end of the collecting pipe is provided with an absolute pressure sensor, and a detection probe of the absolute pressure sensor extends into the collecting pipe.

Through adopting above-mentioned technical scheme, the valve can control the break-make of collecting pipe and heating cylinder, after collecting, can cut off collecting pipe and heating cylinder through closing the valve, absolute pressure sensor can detect the change of collecting pipe internal pressure value, and then calculates the production under the high temperature state of psammitolite and obtain gas content according to the change of condenser pipe internal pressure.

The utility model is further provided with: the collecting pipe is arranged in a V shape.

Through adopting above-mentioned technical scheme, can make things convenient for the collection to the condensate more, when the condensate condenses into liquid in the collecting pipe, the bottom of collecting pipe can be concentrated automatically to liquid.

The utility model is further provided with: the collecting pipe is sleeved with a cooling block, a cooling cavity is formed in the cooling block, and a water inlet and a water outlet which are communicated with the cooling cavity are formed in the cooling block.

Through adopting above-mentioned technical scheme, water inlet and delivery port can realize the hydrologic cycle to the cooling intracavity, and then carries out cooling to the collecting pipe, makes the condensate condensation that collects in the collecting pipe become liquid to distinguish gas and condensate, conveniently carry out the independent detection of content to both.

The utility model is further provided with: the outer side of the cooling block is connected with a supporting frame.

Through adopting above-mentioned technical scheme, the support frame can play the supporting role to collecting pipe and cooling block.

The utility model is further provided with: and a metering tube is arranged below the collecting tube, and one end of the metering tube is communicated with the lowest part of the collecting tube.

By adopting the technical scheme, the liquid generated by condensate condensation can flow into the metering tube, so that the specific content of the condensate can be obtained more intuitively in the metering tube.

The beneficial effects of the utility model are as follows:

1. through the cooperation of collection device, heating cylinder and vacuum pump, can realize the high temperature environment in the simulation casting process to realize collecting the produced gas of psammitolite and condensate, and then obtain the produced gas of psammitolite casting process and the content of condensate through the measurement.

Through setting up absolute pressure sensor and metering tube, can realize the detection to collecting pipe interior gas and condensate content, and then obtain the produced gas of psammitolite and condensate content.

Drawings

Fig. 1 shows a schematic structure of the present utility model.

Figure 2 shows a cross-section in the A-A direction.

Reference numerals: 1. a heating cylinder; 11. a cylinder cover; 12. a heating belt; 2. a collecting device; 21. a collection pipe; 22. a valve; 23. a cooling block; 231. a water inlet; 232. a water outlet; 24. an absolute pressure sensor; 25. metering tube; 251. a water outlet; 26. a support frame; 3. and a vacuum pump.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

The utility model provides a sand core detection device, which comprises a heating cylinder 1, wherein a cylinder cover 11 is rotatably connected to the side wall of the heating cylinder 1 through a pin shaft, so that the cylinder cover 11 and the heating cylinder 1 can be turned over relatively. The cylinder cover 11 is communicated with the collecting device 2, and the input end of the collecting device 2 penetrates through the cylinder cover 11 and stretches into the heating cylinder 1 so as to be used for collecting gas and condensate in the heating cylinder 1. The side wall of the heating cylinder 1 is also communicated with a vacuum pump 3 through a pipeline, and the vacuum pump 3 is used for vacuumizing the heating cylinder 1 and the collecting device 2.

Heating belts 12 are arranged in the side wall and the bottom wall of the heating cylinder 1 and used for heating the heating cylinder 1, and a high-temperature environment in the casting process is simulated for the sand core, so that the sand core can generate gas and condensate in the heating cylinder 1 as in the casting process.

The collecting device 2 comprises a collecting pipe 21, the collecting pipe 21 is in a V shape, one end of the collecting pipe 21 is provided with a valve 22, the valve 22 is a ball valve, one end of the valve 22, which is away from the collecting pipe 21, is communicated with the cylinder cover 11 through a pipeline, and the on-off of the collecting pipe 21 and the heating cylinder 1 can be controlled through adjusting the valve 22.

The other end of the collecting pipe 21 is provided with an absolute pressure sensor 24, the model of the absolute pressure sensor 24 is TY-CYT-113, and a detection probe of the absolute pressure sensor 24 extends into the collecting pipe 21 to be used for detecting the air pressure value in the collecting pipe 21.

The collecting pipe 21 is provided with two cooling blocks 23, and the two cooling blocks 23 are symmetrically arranged about the center line of the collecting pipe 21. The cooling cavity is offered to the inside of cooling block 23, is provided with water inlet 231 and delivery port 232 on the outer wall of cooling block 23, and water inlet 231 and delivery port 232 all are linked together with the cooling cavity to be used for realizing the hydrologic cycle in the cooling cavity, and then cool off collecting pipe 21, make the condensate condensation in the collecting pipe 21 become liquid, further distinguish condensate and gas, be convenient for detect respectively to two kinds of material contents.

A supporting frame 26 is arranged below the cooling blocks 23, and the supporting frame 26 is welded on the outer walls of the two condensing blocks so as to be used for supporting the two cooling blocks 23 and the collecting pipe 21.

The below of collecting pipe 21 is provided with metering pipe 25, and the top of metering pipe 25 obtains the lowest department and is linked together with collecting pipe 21, and the lower extreme of metering pipe 25 supports to the bottom plate of support frame 26, has seted up drain port 251 on the lateral wall of metering pipe 25, and drain port 251 is used for the rubber to cock tightly, and after the condensate condensed into liquid, liquid condensate can flow into metering pipe 25 along collecting pipe 21 in, can intuitively observe the volume of condensate through metering pipe 25.

The detection process comprises the following steps: first, the cylinder cover 11 is turned over, the sand core to be measured is put into the heating cylinder 1, then the cylinder cover 11 is covered, the collecting device 2 is mounted on the cylinder cover 11, and the valve 22 is opened to communicate the collecting pipe 21 with the heating cylinder 1.

Secondly, the vacuum pump 3 is started to pump all the heating cylinder 1, the collecting pipe 21 and the metering pipe 25 to a vacuum state, then the heating cylinder 1 is started to heat, the heating cylinder 1 reaches the temperature environment during casting, at the moment, gas and condensate generated in the sand core flow into the collecting pipe 21, the heating time is calculated to be the same as the casting time, and after the heating time is reached, the valve 22 is closed, so that the collecting pipe 21 is separated from the heating cylinder 1.

Finally, the cooling chamber is circulated with water through the water inlet 231 and the water outlet 232, the collecting pipe 21 is cooled down, the condensate in the collecting pipe 21 is condensed into a liquid state, then flows into the metering pipe 25 along the collecting pipe 21, the condensate is metered according to the scale on the metering pipe 25, and then the content of the gas is measured according to the pressure value in the collecting pipe 21 detected by the absolute pressure sensor 24 and the volume amounts in the collecting pipe 21 and the metering pipe 25.

In calculating the capacity of the metering tube 25, the space occupied by the liquid condensate needs to be removed. The sand core placed in the heating cylinder 1 needs to be the same as the heating cylinder 1 in size, so that excessive space in the heating cylinder 1 can be avoided, the amount of gas and condensate which are not collected in the collecting pipe 21 after the valve 22 is closed can be reduced, and monitoring errors are reduced.

In summary, the utility model can simulate the high temperature environment in the casting process by matching the collecting device 2, the heating cylinder 1 and the vacuum pump 3, collect the gas and condensate generated by the sand core, and further measure the content of the gas and condensate generated in the casting process of the sand core. By providing the absolute pressure sensor 24 and the metering tube 25, the detection of the gas and condensate contents in the collecting tube 21 can be realized, and the gas and condensate contents generated by the sand core can be obtained.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

In the description of the present utility model, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate a direction or a positional relationship, are based on the direction or the positional relationship shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (7)

1. The utility model provides a psammitolite detection device which characterized in that: the device comprises a heating cylinder (1), wherein a cylinder cover (11) is connected onto the heating cylinder (1) in a sealing manner, a collecting device (2) is communicated onto the cylinder cover (11), and a vacuum pump (3) is communicated onto the side wall of the heating cylinder (1).

2. The sand core detection device of claim 1, wherein: heating strips (12) are arranged in the side wall and the bottom wall of the heating cylinder (1).

3. The sand core detection device of claim 1, wherein: the collecting device (2) comprises a collecting pipe (21), one end of the collecting pipe (21) is provided with a valve (22), and one end of the valve (22) away from the collecting pipe (21) is communicated with the cylinder cover (11); the other end of the collecting pipe (21) is provided with an absolute pressure sensor (24), and a detection probe of the absolute pressure sensor (24) extends into the collecting pipe (21) to be arranged inside.

4. A sand core detection device according to claim 3, wherein: the collecting pipe (21) is arranged in a V shape.

5. The sand core detection device of claim 4, wherein: the collecting pipe (21) is sleeved with a cooling block (23), a cooling cavity is formed in the cooling block (23), and a water inlet (231) and a water outlet (232) which are communicated with the cooling cavity are formed in the cooling block (23).

6. The sand core detection device of claim 5, wherein: the outer side of the cooling block (23) is connected with a supporting frame (26).

7. The sand core detection device of claim 6, wherein: a metering tube (25) is arranged below the collecting tube (21), and one end of the metering tube (25) is communicated with the lowest part of the collecting tube (21).