Release agent spraying device for copper alloy pouring mold

Abstract

According to the release agent spraying device for the copper alloy pouring mold, the force of the pressing module for pressing the elastic spray head module is adjusted, and then the spring is pressed or loosened to adjust the caliber of the spraying pipeline, so that the shape and the pressure of the spraying pipeline are changed; therefore, the size, the shape and the spraying pressure of the hole diameter of the outlet of the elastic spray head module are adjusted, the release agent mixed liquid can be evenly sprayed to the inner wall of a casting mold, the situation that the release agent mixed liquid is locally excessive or insufficient is avoided, and meanwhile release agents of different types and granularities can be stably and evenly sprayed to the inner wall of the casting mold. Besides, the gas stirring mechanism is arranged in the sprinkling can body to continuously stir the release agent mixed liquid, so that the stable release agent content in the mixed liquid can be kept in the spraying process, and the situation that due to precipitation of the release agent, the content of the release agent sprayed to the inner wall of a casting mold is inconsistent or a spray head is blocked is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, in particular to a release agent spraying device for a copper alloy casting mold. Background Art

[0002] In the copper alloy casting process, the molten copper alloy needs to be poured into the casting mold, and the ingot needs to be demolded and taken out after the molten copper alloy solidifies and cools. In order to facilitate demolding and protect the copper alloy casting mold, a release agent is usually added; the release agent can form a thin film on the inner wall of the casting mold, reduce the contact force between the inner wall surface of the casting mold and the copper alloy, and enable the ingot to be smoothly separated from the inner wall of the casting mold, thereby avoiding wear of the casting mold and damage to the ingot.

[0003] The release agent is mainly added by spraying or coating. The casting mold coated with the release agent needs to be baked and dried before use. During continuous smelting production, after the copper alloy ingot is demolded, the temperature of the inner wall of the casting mold is high, and it is difficult to spray or coat the release agent. When coating or spraying the release agent to the hot inner wall of the casting mold, the release agent on the inner wall of the casting mold is prone to fall off, resulting in uneven coating or spraying on the upper and bottom parts, and a large waste of release agent. In addition, due to the precipitation of the release agent during the continuous spraying process, the content of the release agent before and after will be different; in the later stage of spraying, the content of the release agent in the molten pool will be too high, resulting in nozzle clogging, or even failure to spray. Utility Model Content

[0004] In view of the technical problems in the prior art that after continuous smelting production, the inner wall temperature of the casting mold is high, which causes the release agent coated or sprayed in the casting mold to fall off easily, the spraying is uneven, and the release agent is precipitated in the molten pool for a long time, resulting in different contents of the release agent before and after, and clogging the nozzle, the utility model provides a release agent spraying device for a copper alloy casting mold.

[0005] A release agent spraying device for a copper alloy casting mold comprises a nozzle, a spray pot for containing a release agent mixture and a first air pipe for passing high-pressure gas; the nozzle comprises a nozzle fixing seat, an elastic nozzle assembly and a compression assembly with adjustable compression; the elastic nozzle assembly is fixedly arranged on the nozzle fixing seat; and a tension spring is arranged in the ejection pipe of the elastic nozzle assembly; the compression assembly is sleeved on the elastic nozzle assembly and is used to adjust the caliber of the ejection pipe by adjusting the force of compressing the elastic nozzle assembly, thereby compressing or loosening the tension spring; a spray air pipe connected to the first air pipe and a release agent pipe connected to the spray pot are arranged in the nozzle fixing seat, and the spray air pipe and the release agent pipe are both connected to the elastic nozzle assembly; a gas stirring mechanism for stirring the release agent mixture is arranged in the spray pot.

[0006] Furthermore, the compression assembly includes a sleeve assembly and an adjusting nut, the sleeve assembly includes an upper sleeve and a lower sleeve, and the elastic nozzle assembly is clamped between the upper sleeve and the lower sleeve; the upper sleeve and the lower sleeve are both provided with external threads on the outside, and the inner surface of the adjusting nut is provided with internal threads that completely match the external threads. The adjusting nut is threadedly connected to the sleeve assembly and is used to adjust the tightness of the sleeve assembly, thereby changing the pressure of the sleeve assembly on the elastic nozzle assembly.

[0007] Furthermore, the outer surfaces of the upper sleeve and the lower sleeve at one end away from the nozzle fixing seat are recessed inward to form a limiting groove; the inner surface of the adjusting nut at one end away from the nozzle fixing seat is protruded inward to form a limiting block, and the limiting groove matches the limiting block.

[0008] Furthermore, an air pipe connector is provided on a side of the first air pipe away from the nozzle, and the air pipe connector is used to be connected to an air storage tank.

[0009] Furthermore, the gas stirring mechanism includes a second air pipe for passing high-pressure gas, the second air pipe is arranged between the spray pot and the first air pipe, and a first valve switch is provided on the second air pipe.

[0010] Furthermore, a second valve switch is provided on the first air pipe, and a third valve switch is provided on the release agent pipeline.

[0011] Furthermore, the spray pot comprises a spray pot body and a spray pot cover plate detachably mounted on the top of the spray pot body.

[0012] Furthermore, the first air pipe is detachably connected to the spray air pipeline, the spray pot and the release agent pipeline.

[0013] The beneficial effects of the utility model are as follows: the utility model provides a copper alloy casting mold release agent spraying device, which adjusts the force with which the clamping block clamps the elastic nozzle block, and then compresses or loosens the spring, changes the caliber of the spray pipe, thereby changing the shape and pressure of the spray pipe, and realizes the adjustment of the size, shape and spraying pressure of the outlet aperture of the elastic nozzle block, which is beneficial for the release agent mixture to be evenly covered on the inner wall of the mold, avoiding local excess or deficiency, and is also beneficial for stably and evenly spraying release agents of different types and particle sizes on the inner wall of the mold.

[0014] At the same time, a gas stirring mechanism is arranged in the spray pot body to continuously stir the release agent mixture, so that the spraying process can maintain a stable release agent content in the mixture, avoiding inconsistent release agent content sprayed onto the inner wall of the casting mold or blocking of the nozzle due to precipitation of the release agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a schematic structural diagram of a copper alloy casting mold release agent spraying device.

[0016] Figure 2 This is a schematic diagram of the nozzle adjustment provided by the utility model.

[0017] Figure ID

[0018] 1. Nozzle; 11. Adjusting nut; 111. Limiting protrusion; 12. Sleeve assembly; 121. Upper sleeve; 122. Lower sleeve; 123. Limiting groove; 13. Elastic spring; 14. Elastic nozzle assembly; 15. Nozzle fixing seat; 16. Spraying pipe; 17. Spraying air pipe; 18. Release agent pipe; 2. Spray pot; 21. Spray pot body; 22. Spray pot cover; 23. Release agent mixture; 31. First switch; 32. Second switch 33. Third switch; 4. First air pipe; 5. Second air pipe; 6. Air pipe connection port; DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0020] refer to Figure 1 As shown, the utility model provides a copper alloy casting mold release agent spraying device, comprising a spray head 1, a spray pot 2 for containing a release agent mixed liquid 23, and a first air pipe 4 and a second air pipe 5 for high-pressure gas to pass through.

[0021] Specifically, the nozzle includes a nozzle fixing seat 15, an elastic nozzle assembly 14 and a compression assembly with adjustable compression; the elastic nozzle assembly 14 is fixedly arranged on the nozzle fixing seat 15; and a tension spring 13 is arranged in the ejection pipe 16 of the elastic nozzle assembly 14; the compression assembly is sleeved on the elastic nozzle assembly 14, and is used to adjust the force of pressing the elastic nozzle assembly 14, thereby tightening or loosening the tension spring 13, changing the caliber size of the ejection pipe 16, thereby changing the shape and pressure of the ejection pipe 16, so as to achieve uniform coverage of the release agent on the inner wall of the mold, avoid local excess or deficiency, and at the same time facilitate stable and uniform spraying of release agents of different types and particle sizes on the inner wall of the mold.

[0022] Among them, reference Figure 2As shown, the clamping block includes a sleeve assembly 12 and an adjusting nut 11, the sleeve assembly 12 includes an upper sleeve 121 and a lower sleeve 122, and the elastic nozzle block 14 is clamped between the upper sleeve 121 and the lower sleeve 122; the upper sleeve 121 and the lower sleeve 122 are both provided with external threads, and the inner surface of the adjusting nut 11 is provided with internal threads that completely match the external threads (that is, the adjusting nut 11 is a full-threaded nut), the adjusting nut 11 is threadedly connected to the sleeve assembly 12, and is used to adjust the tightness of the sleeve assembly 12, thereby changing the pressure of the sleeve assembly 12 on the elastic nozzle block 14.

[0023] By using the elastic nozzle assembly 14 sandwiched between the upper sleeve 121 and the lower sleeve 122, the upper sleeve 121 and the lower sleeve 122 are not fixed at this time, the elastic nozzle assembly 14 is subjected to very little pressure, the spray pipe 16 thereof does not deform and the tension spring 13 in the spray pipe 16 is not compressed. When the adjusting nut 11 sleeved on the outer surface of the sleeve assembly 12 composed of the upper sleeve 121 and the lower sleeve 122 is rotated and tightened, that is, referring to Figure 2 As shown by Figure 2 Part (a) changes to Figure 2 When adjusting the contact area between the inner surface of the adjusting nut 11 and the outer surface of the sleeve assembly 12, the upper sleeve 121 and the lower sleeve 122 are gradually fixed, and the pressure on them is gradually increased, thereby gradually pressing the elastic nozzle assembly 14 to deform the spray pipe 16 and compress the tension spring 13 in the spray pipe 16, thereby adjusting the shape, pressure and size of the spray pipe 16, so that the spray device can adapt to the requirements of the spray channel size for different types and particle sizes of release agents, and evenly spray the release agent on the inner wall of the mold. On the contrary, when Figure 2 Part (b) of the Figure 2 In part (a), the adjusting nut 11 is gradually loosened, the contact area between the inner surface of the adjusting nut 11 and the outer surface of the sleeve assembly 12 is continuously reduced, the locking degree of the upper sleeve 121 and the lower sleeve 122 is gradually weakened, the pressure on them is gradually reduced, and then the compressed elastic nozzle assembly 14 is gradually loosened, so that the tension spring 13 in the spray pipe 16 is gradually loosened, and the tension is provided to help the spray pipe 16 gradually return to its original state.

[0024] The outer surface of the upper sleeve 121 and the lower sleeve 122 at one end away from the nozzle fixing seat 15 is recessed inward to form a limiting groove 123; the inner surface of the adjusting nut 11 at one end away from the nozzle fixing seat 15 is protruded inward to form a limiting block, and the limiting groove 123 matches the limiting block. The limiting block and the limiting groove 123 are used to limit the rotation of the adjusting nut 11 when the internal thread on the inner surface of the adjusting nut 11 is fully threadedly connected with the external thread on the upper sleeve 121 and the lower sleeve 122. When the external thread is fully threadedly connected with the internal and external threads, the limiting block is exactly engaged with the limiting groove 123 to limit the further rotation of the adjusting nut 11.

[0025] Preferably, the outer surface of the nozzle fixing seat 15 is also provided with an external thread that is compatible with the internal thread, and the internal thread of the adjusting nut 11 can completely match the external thread of the sleeve assembly 12 and the nozzle fixing seat 15. When the adjusting nut 11 is fully threadedly connected with the sleeve assembly 12, the adjusting nut 11 and the nozzle fixing seat 15 fix the sleeve assembly 12 on the nozzle fixing seat 15.

[0026] The nozzle fixing seat 15 is provided with a spraying air pipe 17 connected to the first air pipe 4 and a release agent pipe 18 connected to the spray pot, and the spraying air pipe 17 and the release agent pipe 18 are both connected to the elastic nozzle assembly 14. The first air pipe 4 is provided with an air pipe connection port 6 on the side away from the nozzle, and the air pipe connection port 6 is used to be connected to a gas storage tank.

[0027] When the high-pressure gas in the gas tank is introduced into the first air pipe 4 through the air pipe connecting port 6 and then sent into the elastic nozzle assembly 14 through the spray air pipe 17, the release agent mixture 23 is simultaneously sent from the spray pot into the elastic nozzle assembly 14 through the release agent pipe 18, so that the release agent mixture 23 is sprayed out to complete the spraying operation.

[0028] The spray pot 2 is provided with a gas stirring mechanism (not shown in the figure) for stirring the release agent mixture. The gas stirring mechanism includes a second air pipe 5 for passing high-pressure gas, the second air pipe 5 is arranged between the spray pot 2 and the first air pipe 4, and a first valve switch 31 is provided on the second air pipe.

[0029] During operation, the amount of high-pressure gas entering the spray pot 2 is controlled by adjusting the size of the first valve switch 31, so that the gas continuously stirs the release agent mixture 23 in the spray pot. In continuous smelting production, the release agent mixture 23 can maintain a stable release agent content in the casting mold spraying process, avoiding the situation where the release agent content sprayed on the inner wall of the casting mold is inconsistent or the nozzle is blocked due to the precipitation of the release agent.

[0030] A second valve switch 32 is provided on the first air pipe 4, and a third valve switch 33 is provided on the release agent pipeline 18. When working, the second valve switch 32 and the third valve switch 33 are opened to allow the high-pressure gas to smoothly pass through the first air pipe 4 and enter the spraying air pipeline 17; at the same time, the release agent mixed liquid 23 enters the release agent channel from the spray pot and enters the spraying pipeline 16; and then the high-pressure gas blows the release agent mixed liquid 23 entering the spraying pipeline 16 to achieve atomization, and the spraying work is performed.

[0031] The spray pot 2 comprises a spray pot body 21 and a spray pot cover plate 22 detachably mounted on the top of the spray pot body 21. After opening the spray pot cover plate 22, a release agent mixed liquid 23 can be added into the spray pot body 21.

[0032] The first air pipe 4 is detachably connected to the spray air pipe 17, the spray pot, and the release agent pipe 18. By disassembling the first air pipe 4, the spray air pipe 17, the spray pot, and the release agent pipe 18, the spray head can be separated from the spray pot and the first air pipe 4, and then the spray head can be replaced with a more suitable type to meet production needs.

[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A copper alloy casting mold release agent spraying device, characterized in that: It includes a spray head, a spray pot for containing a release agent mixed liquid, and a first air pipe for high-pressure gas to pass through; The nozzle comprises a nozzle fixing seat, an elastic nozzle assembly and a compression assembly with adjustable compression degree; the elastic nozzle assembly is fixedly arranged on the nozzle fixing seat; and a tension spring is arranged in the ejection pipe of the elastic nozzle assembly; the compression assembly is sleeved on the elastic nozzle assembly, and is used to adjust the force of pressing the elastic nozzle assembly, thereby compressing or loosening the tension spring, so as to adjust the caliber of the ejection pipe; A spray air duct connected to the first air pipe and a release agent duct connected to the spray pot are arranged in the nozzle fixing seat, and both the spray air duct and the release agent duct are connected to the elastic nozzle assembly; a gas stirring mechanism for stirring the release agent mixture is arranged on the spray pot.

2. A copper alloy casting mold release agent spraying device according to claim 1, characterized in that: The compression assembly includes a sleeve assembly and an adjusting nut, the sleeve assembly includes an upper sleeve and a lower sleeve, and the elastic nozzle assembly is clamped between the upper sleeve and the lower sleeve; the upper sleeve and the lower sleeve are both provided with external threads, and the inner surface of the adjusting nut is provided with internal threads that completely match the external threads. The adjusting nut is threadedly connected to the sleeve assembly and is used to adjust the tightness of the sleeve assembly to change the pressure of the sleeve assembly on the elastic nozzle assembly.

3. A copper alloy casting mold release agent spraying device according to claim 2, characterized in that: The outer surfaces of the upper sleeve and the lower sleeve at one end away from the nozzle fixing seat are recessed inward to form a limiting groove; the inner surface of the adjusting nut at one end away from the nozzle fixing seat is protruded inward to form a limiting block, and the limiting groove matches the limiting block.

4. A copper alloy casting mold release agent spraying device according to claim 1, characterized in that: A gas pipe connector is provided on a side of the first gas pipe away from the nozzle, and the gas pipe connector is used to be connected to a gas storage tank.

5. A copper alloy casting mold release agent spraying device according to claim 1, characterized in that: The gas stirring mechanism comprises a second air pipe for passing high-pressure gas, the second air pipe is arranged between the spray pot and the first air pipe, and a first valve switch is arranged on the second air pipe.

6. A copper alloy casting mold release agent spraying device according to claim 1, characterized in that: The first air pipe is provided with a second valve switch, and the release agent pipeline is provided with a third valve switch.

7. A copper alloy casting mold release agent spraying device according to claim 1, characterized in that: The spray pot comprises a spray pot body and a spray pot cover plate detachably mounted on the top of the spray pot body.

8. A copper alloy casting mold release agent spraying device according to claim 1, characterized in that: The first air pipe is detachably connected to the spray air pipeline, the spray pot and the release agent pipeline.

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