Angle-adjustable grease spray valve

Abstract

The utility model relates to the technical field of grease spraying, and discloses an angle-adjustable grease spray valve which comprises a valve body, a grease control assembly and a grease outlet assembly are arranged on the valve body, the grease outlet assembly comprises a sealing mandrel and a spherical nozzle, one end of the sealing mandrel is installed on the valve body, and the other end of the sealing mandrel is in sealing contact with a hemispherical cavity of the spherical nozzle. The sealing mandrel is provided with a third grease channel, the spherical nozzle is provided with a grease outlet, one end of the third grease channel is communicated with the grease outlet, the other end of the third grease channel is connected with the grease control assembly, the spherical nozzle is provided with a plurality of air outlet channels, and an included angle alpha is formed between the axis of each air outlet channel and the axis of the grease outlet. The included angle alpha ranges from 28 degrees to 32 degrees. And grease flowing out of the grease control assembly flows to the grease outlet through the third grease channel and is sprayed out of the grease outlet, so that the grease is sprayed to the workpiece, the production efficiency and the product quality are greatly improved, the spraying uniformity is good, the cost is low, and the safety during grease spraying is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grease spraying, in particular to a grease spray valve with adjustable angle. Background Art

[0002] With the rapid development of the domestic automobile industry, the use of die-casting molds, especially large die-casting molds, has been greatly improved. Since the surface of the mold casting cavity has a certain degree of adhesion, the surface quality of the casting is very poor, so a layer of grease that can easily make the casting detach is required. At present, the main method of manual application is to use a brush, which not only has low production efficiency and high cost, but also has poor and uneven application quality, affecting product quality and benefits. In addition, the surface temperature of the mold is high, and the manual application method has a great personal safety hazard. Utility Model Content

[0003] The utility model aims at solving the existing technical problems and provides a grease spray valve with adjustable angle.

[0004] The utility model solves the above-mentioned technical problems with a technical solution as follows: an angle-adjustable grease spray valve comprises a valve body, an oil control assembly and an oil outlet assembly are provided on the valve body, the oil outlet assembly comprises a sealing core shaft and a spherical nozzle, one end of the sealing core shaft is mounted on the valve body, and the other end is in sealing contact with the hemispherical cavity of the spherical nozzle, a grease channel three is provided on the sealing core shaft, a grease outlet is provided on the spherical nozzle, one end of the grease channel three is communicated with the grease outlet, and the other end is connected to the oil control assembly, a plurality of air outlet channels are provided on the spherical nozzle, and the axis of the air outlet channel is arranged at an angle α to the axis of the grease outlet, and the angle α is 28°-32°.

[0005] On the basis of the above technical solution, in order to achieve the convenience of use and the stability of the equipment, the utility model can also make the following improvements to the above technical solution:

[0006] Preferably, the valve body is provided with a plurality of compressed air inlets, which are arranged in an arc shape on the valve body, the compressed air inlets are connected to the air outlet channel, and the air outlets of the plurality of air outlet channels are arranged circumferentially along the grease outlet.

[0007] Preferably, the valve body is provided with a grease inlet and a compressed air inlet and outlet, the oil control assembly comprises a sealing sleeve, a lower seat, an elastic reset member and an upper seat, one end of the elastic reset member is in contact with the upper seat, and the other end is in contact with the lower seat, the lower end of the lower seat is slidably inserted in the sealing sleeve, the sealing sleeve, the lower seat and the valve body form a cavity, the compressed air inlet and outlet are connected with the cavity through an air inlet channel, a grease channel 1 is provided in the valve body, a grease channel 2 is provided on the side wall of the sealing sleeve, the grease inlet is connected with the grease channel 2 through the grease channel 1, the grease channel 2 is connected with the grease channel 3, and the lower seat is used to open or close the grease channel 2.

[0008] Preferably, a conical concave surface is provided on the spherical nozzle, the grease outlet is located at the center of the conical concave surface, and the air outlets of the plurality of air outlet channels are located on the side walls of the conical concave surface.

[0009] Preferably, the opening angle β of the tapered surface is 118°-122°.

[0010] Preferably, an annular groove is provided on the spherical nozzle outside the cavity, and the air inlet of the air outlet channel is arranged on the bottom surface of the annular groove.

[0011] Preferably, the depth L of the annular groove is 5 mm-7 mm.

[0012] Preferably, a sealing portion is provided on the sealing core shaft, an end of the sealing portion is provided with an outwardly convex arc surface, the arc surface is adapted to the cavity, a sealing ring six is ​​provided on the sealing portion, and the sealing portion is in sealing contact with the cavity through the sealing ring six.

[0013] Preferably, a detachable pressure plate is provided on the valve body, a spherical groove 1 is provided on the pressure plate, a spherical groove 2 is provided on the valve body, the spherical groove 1 and the spherical groove 2 cooperate to form a space for accommodating the spherical nozzle, and a sealing ring 1 is provided between the pressure plate and the spherical nozzle.

[0014] Preferably, the lower seat includes a sealing block and a vertical rod connected as one body, a sealing ring four is provided between the sealing block and the inner wall of the valve body, a vertical hole connected to the grease channel two is provided on the sealing screw sleeve, and the vertical rod is slidably inserted in the vertical hole.

[0015] The beneficial effects of the utility model are as follows: the grease flowing out of the oil control component flows through the grease channel to the grease outlet, and is sprayed out from the grease outlet to spray grease onto the workpiece, which can not only greatly improve production efficiency, but also improve product quality, uniformity, reduce costs, reduce environmental pollution, and ensure safety when spraying grease. When the angle α is less than 28°, the position where the compressed air blown out of the air outlet blows away the grease is far away from the grease outlet, resulting in the grease being sprayed on the workpiece without being fully blown away, affecting the uniformity of the grease spraying and affecting the spraying quality; when the angle α is greater than 32°, the position where the compressed air blown out of the air outlet blows away the grease is too close to the position of the grease outlet, affecting the normal spraying of the grease from the grease outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of the grease spray valve of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the grease spray valve of the utility model;

[0018] Figure 3 for Figure 1 Schematic diagram of the K direction;

[0019] Figure 4 for Figure 1 Schematic diagram of the Y direction;

[0020] Figure 5 It is a structural schematic diagram of a spherical nozzle;

[0021] Figure 6 is a schematic diagram of introducing compressed air into the cavity;

[0022] Figure 7 This is a schematic diagram of the flow of grease in the grease spray valve;

[0023] Figure 8 It is a cross-sectional schematic diagram of the spherical nozzle after adjusting the angle;

[0024] Fig. 9 This is a three-dimensional schematic diagram of the spherical nozzle after adjusting the angle.

[0025] Figure markings: 1. Sealing ring one; 2. Sealing core shaft; 3. Valve body; 4. Sealing ring two; 5. Sealing screw sleeve; 6. Sealing ring three; 7. Lower seat; 8. Elastic reset member; 9. Upper seat; 10. Hole retaining ring; 11. Sealing ring four; 12. Sealing ring five; 13. Pressure plate; 14. Sealing ring six; 15. Spherical nozzle; 16. Grease inlet; 17. Compressed air inlet and outlet; 18. Compressed air inlet; 19. Grease outlet; 20. Air outlet channel; 21. Locking screw; 22. Grease channel one; 23. Grease channel two; 24. Grease channel three; 25. Cavity; 26. Annular groove; 27. Cavity; 28. Vent; 29. ​​Scale mark; 30. O-ring. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] like Figures 1 to 9As shown, the utility model discloses an angle-adjustable grease spray valve, including a valve body 3, on which an oil control component and an oil outlet component are provided, on which a grease inlet 16 and a compressed air inlet 17 are provided, and the compressed air inlet 17 is connected to a solenoid valve, and the compressed air is introduced into or discharged from the compressed air inlet 17 through the solenoid valve, and a first accommodating chamber and a second accommodating chamber are vertically arranged on the valve body 3, and the oil control component is located in the first accommodating chamber, and the oil control component includes a sealing screw sleeve 5, a lower seat 7, an elastic reset member 8 and an upper seat 9, and the upper seat 9 is installed in the first accommodating chamber through a hole with a retaining ring 10, and the elastic reset member 8 One end is in contact with the upper seat 9, and the other end is in contact with the lower seat 7. The lower end of the lower seat 7 is slidably inserted in the sealing screw sleeve 5. The sealing screw sleeve 5, the lower seat 7 and the valve body 3 form a cavity 25. The compressed air inlet and outlet 17 are connected with the cavity 25 through an air inlet channel. A sealing ring 5 12 is provided between the sealing screw sleeve 5 and the inner wall of the first accommodating chamber to ensure the sealing of the cavity 25. A grease channel 1 22 is provided in the valve body 3. A plurality of grease channels 2 23 are provided on the side wall of the sealing screw sleeve 5. The grease inlet 16 is connected with the grease channel 2 23 through the grease channel 1 22. The lower seat 7 is used to open or close the grease channel 2 23.

[0029] The oil outlet assembly is located in the second accommodating cavity, and a through hole for grease to pass through is provided on the bottom wall of the first accommodating cavity. The oil outlet assembly includes a sealing core shaft 2 and a spherical nozzle 15. One end of the sealing core shaft 2 is installed on the valve body 3 through a thread, and the other end is in sealing contact with the hemispherical cavity 27 of the spherical nozzle 15. A grease channel three 24 is provided on the sealing core shaft 2, and the grease channel three 24 is connected with the grease channel two 23 through the through hole on the bottom wall of the first accommodating cavity. A grease outlet 19 is provided on the spherical nozzle 15, and the grease outlet 19 is connected with the grease channel three 24. Specifically, the grease outlet 19 is located at the center of the cavity 27, and a transition hole is provided between the cavity 27 and the grease outlet 19, which guides the grease and increases the grease circulation area, so as to ensure that the grease will not block the grease channel three 24 when the spherical nozzle 15 rotates, thereby ensuring normal coating of the workpiece. In the initial state, the lower seat 7 closes the grease channel 2 23 under the action of the elastic reset member 8. When the compressed air inlet and outlet 17 continuously introduces compressed air into the cavity 25, the compressed air overcomes the action of the elastic reset member 8, drives the lower seat 7 to move upward, opens the grease channel 2 23, and allows the grease injected from the grease inlet 16 to enter the grease channel 1 22, the grease channel 2 23 and the grease channel 3 24 in turn, and is sprayed out through the grease outlet 19, thereby achieving spraying of the workpiece.

[0030] Furthermore, when it is necessary to close the grease channel 23, the compressed air in the cavity 25 is discharged from the compressed air inlet and outlet 17, and the elastic reset member 8 drives the lower seat 7 to move downward to close the grease channel 23. The opening and closing of the grease spray valve is adjusted by compressed air, which is convenient to control, quick to respond, reliable and adaptable.

[0031] Furthermore, the valve body 3 is provided with a plurality of compressed air inlets 18, and a cylindrical connection port is provided on the outside of the compressed air inlet 18. The outside of the connection port is provided with a thread for connection with a compressed air source. The plurality of compressed air inlets 18 are arranged in an arc shape on the valve body 3 to ensure that a sufficient amount of compressed air is introduced into the valve body 3, reduce the occupied space, and avoid the flow path of grease, so that the overall structure is more compact. The spherical nozzle 15 is provided with a plurality of air outlet channels 20, and the compressed air inlet 18 is connected to the air outlet channel 20. The air outlet of the air outlet channel 20 is arranged circumferentially along the grease outlet 19, and the axis of the air outlet channel 20 is arranged at an angle to the axis of the grease outlet 19. The angle α between the axis of the air outlet channel 20 and the axis of the grease outlet 19 is 28°-32°, preferably 30°. The air outlet is used to blow away the grease sprayed from the grease outlet 19, improve the uniformity of grease spraying, and improve the spraying quality of the workpiece.

[0032] The valve body 3 is provided with a detachable pressing plate 13. Specifically, the pressing plate 13 is installed on the valve body 3 by means of a locking screw 21. The pressing plate 13 is provided with a spherical groove 1, and the valve body 3 is provided with a spherical groove 2. The spherical groove 1 and the spherical groove 2 cooperate to form a space for accommodating the spherical nozzle 15. A sealing ring 1 is provided between the pressing plate 13 and the spherical nozzle 15. The sealing ring 1 plays a role of sealing and fixing, and prevents grease from flowing out of the gap between the pressing plate 13 and the spherical nozzle 15. After the locking screw 21 is tightened, the spherical nozzle 15 will not easily rotate under the extrusion force of the sealing ring 1, so as to ensure that the spherical nozzle 15 sprays the workpiece at a specified angle and ensures the spraying effect on the workpiece.

[0033] In this embodiment, the elastic reset member 8 is a compression spring, and both the upper seat 9 and the lower seat 7 are provided with a receiving groove, and the end of the compression spring is located in the receiving groove, and the elastic reset member 8 is limited by the receiving groove to ensure its normal expansion and contraction. The upper seat 9 is provided with an air vent 28, which is used to balance the pressure in the space between the upper seat 9 and the lower seat 7, always keeping the internal and external pressures consistent, and ensuring that the compressed air can overcome the force of the elastic reset member 8, drive the lower seat 7 to move upward, and achieve the purpose of opening the grease channel 2 23.

[0034] Optionally, the elastic reset member 8 may be elastic rubber.

[0035] The spherical nozzle 15 is provided with a conical concave surface, the grease outlet 19 is located at the center of the conical concave surface, the outlets of the plurality of outlet channels 20 are located on the side wall of the conical concave surface, and the opening angle β of the conical surface is 118°-122°. The compressed air blown out of the outlet is gathered to ensure the effect of blowing away the grease, and the outlet is conveniently positioned to reduce the difficulty of processing.

[0036] Furthermore, an annular groove 26 is provided on the spherical nozzle 15 outside the cavity 27, and the air inlet of the air outlet channel 20 is arranged on the bottom surface of the annular groove 26. The annular groove 26 gathers and guides the compressed air sprayed from the compressed air inlet 18, ensuring that a sufficient amount of compressed air enters the air outlet channel 20, ensuring the grease blowing effect, and ensuring the uniformity of grease spraying.

[0037] The depth L of the annular groove 26 is 5mm-7mm. The depth of the annular groove 26 determines the angle between the air outlet channel 20 and the grease outlet 19, thereby affecting the atomization angle. Taking the left side of the spherical nozzle 15 as a reference, when the depth L is less than 5mm, the angle α is less than 28°, and the position where the compressed air blows away the grease is too far, affecting the uniformity of the grease spraying. When the depth L is greater than 7mm, the angle α is greater than 32°, and the position where the compressed air blows away the grease is too close to the grease outlet 19, affecting the normal spraying of the grease.

[0038] The spherical nozzle 15 at the grease outlet 19 is provided with a barrel, and a plurality of annular grooves are provided on the outer wall of the barrel. When the spraying angle of the grease outlet 19 needs to be adjusted, the sleeve tool is mounted on the barrel, and a force is applied to the barrel. The force overcomes the pressing force and friction force of the sealing ring 1, so that the spherical nozzle 15 rotates to adjust the angle of the grease outlet 19 of the spherical nozzle 15. When the other end of the sleeve tool points to the required position, it means that the grease outlet 19 of the spherical nozzle 15 reaches the specified position, and the rotation stops. The annular groove can increase the friction between the tool and the barrel, which is conducive to the adjustment of the angle of the spherical nozzle 15.

[0039] Furthermore, the valve body 3 is provided with a plurality of scale marks 29 , which are evenly arranged along the circumference of the spherical nozzle 15 . The position of the spherical nozzle 15 is preliminarily adjusted through the scale marks 29 , thereby reducing the difficulty of adjusting the angle of the spherical nozzle 15 .

[0040] The sealing core shaft 2 is provided with a sealing part, and the end of the sealing part is provided with an outwardly convex arc surface, and the arc surface is adapted to the cavity 27. A sealing ring 6 14 is provided between the side wall of the sealing part and the inner wall of the cavity 27. The sealing part is in sealing contact with the cavity 27 through the sealing ring 6 14 to ensure sealing. The arc surface cooperates with the cavity 27 to meet the adjustment of different angles of the spherical nozzle 15, ensuring that the two are always in sealing contact to avoid the problem of grease leakage.

[0041] The lower seat 7 includes a sealing block and a vertical rod connected as one body, a sealing ring 11 is provided between the sealing block and the inner wall of the first accommodating chamber of the valve body 3, a vertical hole connected to the grease channel 2 23 is provided on the sealing screw sleeve 5, the vertical rod is slidably inserted in the vertical hole, an O-ring 30 is provided between the vertical rod and the inner wall of the vertical hole to ensure the sealing of the cavity 25, avoid leakage of compressed air, and ensure the driving effect of compressed air on the lower seat 7, a sealing ring is provided between the sealing screw sleeve 5 below the grease channel 2 23 and the vertical rod to ensure the closing effect of the lower seat 7 on the grease channel 2 23 and avoid grease from flowing out of the gap between the lower seat 7 and the sealing screw sleeve 5.

[0042] When in use, the grease spray valve is installed on the existing production equipment, and the sealing ring 2 4 and the sealing ring 3 6 play a sealing role during assembly, wherein the existing production equipment can control the separate supply of two-way compressed air and the supply of grease, the two-way compressed air is required to be clean, dry, and independently controllable, and the pressure will vary according to the viscosity of the grease, and needs to be adjusted according to actual conditions.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An angle-adjustable grease spray valve, comprising a valve body (3), wherein the valve body (3) is provided with an oil control component and an oil outlet component, characterized in that: The oil outlet assembly comprises a sealing core shaft (2) and a spherical nozzle (15); one end of the sealing core shaft (2) is mounted on the valve body (3), and the other end is in sealing contact with a hemispherical cavity (27) of the spherical nozzle (15); a grease channel three (24) is provided on the sealing core shaft (2); a grease outlet (19) is provided on the spherical nozzle (15); one end of the grease channel three (24) is in communication with the grease outlet (19), and the other end is connected to the oil control assembly; a plurality of air outlet channels (20) are provided on the spherical nozzle (15); an axis of the air outlet channel (20) is arranged at an angle α to an axis of the grease outlet (19); the angle α is 28°-32°.

2. The angle-adjustable grease spray valve according to claim 1, characterized in that: The valve body (3) is provided with a plurality of compressed air inlets (18), which are arranged in an arc shape on the valve body (3), the compressed air inlets (18) are connected to the air outlet channel (20), and the air outlets of the plurality of air outlet channels (20) are arranged circumferentially along the grease outlet (19).

3. The angle-adjustable grease spray valve according to claim 1 or 2, characterized in that: The valve body (3) is provided with a grease inlet (16) and a compressed air inlet and outlet (17). The oil control assembly comprises a sealing screw sleeve (5), a lower seat (7), an elastic reset member (8) and an upper seat (9). One end of the elastic reset member (8) is in contact with the upper seat (9), and the other end is in contact with the lower seat (7). The lower end of the lower seat (7) is slidably inserted into the sealing screw sleeve (5). The sealing screw sleeve (5), the lower seat (7) and the valve body (3) form a cavity (25). ), the compressed air inlet and outlet (17) are connected to the cavity (25) through an air inlet channel, a grease channel 1 (22) is provided in the valve body (3), a grease channel 2 (23) is provided on the side wall of the sealing screw sleeve (5), the grease inlet (16) is connected to the grease channel 2 (23) through the grease channel 1 (22), the grease channel 2 (23) is connected to the grease channel 3 (24), and the lower seat (7) is used to open or close the grease channel 2 (23).

4. The angle-adjustable grease spray valve according to claim 1 or 2, characterized in that: The spherical nozzle (15) is provided with a conical concave surface, the grease outlet (19) is located at the center of the conical concave surface, and the air outlets of the plurality of air outlet channels (20) are located on the side wall of the conical concave surface.

5. The angle-adjustable grease spray valve according to claim 4, characterized in that: The opening angle β of the conical concave surface is 118°-122°.

6. The angle-adjustable grease spray valve according to claim 2, characterized in that: An annular groove (26) is provided on the spherical nozzle (15) outside the cavity (27), and an air inlet of the air outlet channel (20) is arranged on the bottom surface of the annular groove (26).

7. The angle-adjustable grease spray valve according to claim 6, characterized in that: The depth L of the annular groove (26) is 5 mm to 7 mm.

8. The angle-adjustable grease spray valve according to claim 1, characterized in that: The sealing core shaft (2) is provided with a sealing portion, the end of the sealing portion is provided with an outwardly convex arc surface, the arc surface is adapted to the cavity (27), the sealing portion is provided with a sealing ring six (14), and the sealing portion is in sealing contact with the cavity (27) through the sealing ring six (14).

9. The angle-adjustable grease spray valve according to claim 1, characterized in that: The valve body (3) is provided with a detachable pressure plate (13), the pressure plate (13) is provided with a spherical groove 1, the valve body (3) is provided with a spherical groove 2, the spherical groove 1 and the spherical groove 2 cooperate to form a space for accommodating the spherical nozzle (15), and a sealing ring 1 (1) is provided between the pressure plate (13) and the spherical nozzle (15).

10. The angle-adjustable grease spray valve according to claim 3, characterized in that: The lower seat (7) comprises a sealing block and a vertical rod connected as one body, a sealing ring four (11) is arranged between the sealing block and the inner wall of the valve body (3), a vertical hole connected to the grease channel two (23) is arranged on the sealing screw sleeve (5), and the vertical rod is slidably inserted in the vertical hole.

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