A precise quantitative control device for oil filling

Abstract

This utility model discloses a precise quantitative control device for oil filling, including a filling valve body, a feed pipe, and an external pipe connector. The feed pipe is welded to the feed inlet of the filling valve body. It also includes an auxiliary cutting mechanism. By separating the feed pipe and the external pipe connector of the filling valve body, and setting up an auxiliary cutting mechanism to connect the feed pipe and the external pipe connector, the transfer box of the auxiliary cutting mechanism, together with the U-shaped cutting plate driven by the electric push rod, can assemble an additional cutting position between the feed pipe and the external pipe connector. This makes the filling valve body have a two-stage cutting-off design, which improves its material cutting and sealing effect during oil filling, avoids filling volume errors caused by leakage, and ensures the stable operation of the precise quantitative control function of the weighing filling machine.

Description

Technical Field

[0001] This utility model relates to the field of oil filling technology, and in particular to a precise quantitative control device for oil filling. Background Technology

[0002] When filling oils, a dedicated weighing filling machine is usually selected. The weighing filling machine uses a high-precision weighing sensor to weigh the filling container in real time. When the weight of the filled oil reaches the set value, the control system immediately stops filling. Its working process usually includes container conveying, tare weighing, filling, weighing feedback and control. During the filling process, the control system will accurately control the opening and closing of the filling valve according to the weight signal fed back by the weighing sensor to achieve accurate quantitative filling.

[0003] Currently, weighing filling machines used for oil filling typically rely on pneumatic filling valves under the control of a control system to achieve precise quantitative control during oil filling. These pneumatic filling valves control the opening and closing of the valve chamber pneumatically. However, after prolonged use, grease residue can affect the sealing effect of the ordinary sealing structure of these valves. Furthermore, the individual shut-off method of these valves has limited sealing effectiveness, leading to potential leaks and affecting the accuracy of oil filling. Therefore, we propose a precise quantitative control device for oil filling. Utility Model Content

[0004] The main objective of this invention is to provide a precise quantitative control device for oil filling. By separating the feed pipe and external connector of the filling valve body and providing an auxiliary cutting mechanism to connect them, the auxiliary cutting mechanism's transfer box, in conjunction with a U-shaped cut-off plate driven by an electric actuator, can create an additional cutting-off position between the feed pipe and the external connector. When the filling valve body is operating normally, the electric actuator pulls the U-shaped cut-off plate upwards, without affecting the normal oil conveying and filling process. When the filling valve body is closed, the electric actuator drives the U-shaped cut-off plate downwards to cut off the flow. This two-stage cutting-off design enhances the sealing effect during oil filling, preventing filling volume errors caused by leakage and ensuring the stable operation of the precise quantitative control function of the weighing filling machine. This effectively solves the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A precision quantitative control device for oil filling includes a filling valve body, a feed pipe, and an external pipe connector. The feed pipe is welded to the feed inlet of the filling valve body. The device also includes an auxiliary cutting mechanism, which comprises a transfer box, a U-shaped box, a U-shaped cut plate, a sealing sleeve, a sealing ring, a pressure cap, and an electric push rod. The transfer box is welded to the feed pipe and the external pipe connector, and a U-shaped box is welded to the upper opening of the transfer box. A U-shaped cut plate is inserted between the U-shaped box and the transfer box, and a sealing sleeve for sealing the transfer box is wrapped and bonded to the rounded end of the U-shaped cut plate. A sealing ring is fitted onto the vertical plate of the U-shaped cut plate away from the sealing sleeve. A pressure cap is bolted to the top of the U-shaped box, and an electric push rod is bolted to the surface of the pressure cap. The telescopic head of the electric push rod passes through the pressure cap and is screwed to the U-shaped cut plate inside the transfer box.

[0007] Furthermore, a sealing gasket is pressed between the cover and the U-shaped box, and an installation hole for screwing bolts is provided between the sealing gasket, the cover and the U-shaped box. A guide hole for the telescopic rod below the electric push rod is provided through the surface of the cover and the sealing gasket.

[0008] By adopting the above technical solution, after the sealing gasket is placed on the top of the U-shaped box, the cover is pressed on the surface of the sealing gasket, and bolts are used to insert into the cover, the sealing gasket and the U-shaped box, thereby sealing the top of the U-shaped box.

[0009] Furthermore, the U-shaped section plate has grooved surfaces on both sides, and the grooved surfaces and bottom plate surfaces of the U-shaped section plate are inserted into the sleeve of the sealing sleeve and bonded and fixed.

[0010] By adopting the above technical solution, the U-shaped section plate is inserted into the sealing sleeve by fitting its grooved surface with its own bottom plate surface for bonding and connection, so that the U-shaped section plate can press against the sealing sleeve and be inserted into the transfer box for sealing.

[0011] Furthermore, the vertical plate surface of the U-shaped section above the sealing sleeve is provided with recessed grooves, and a sealing ring is fitted inside the recessed grooves;

[0012] By adopting the above technical solution, the sealing sleeve can use the recessed groove to clamp the sealing ring, so that there is a sealing and blocking position between the U-shaped section plate and the transfer box and the U-shaped box.

[0013] Furthermore, a U-shaped groove is provided inside the transfer box outside the sealing sleeve, and a sealing sleeve is pressed into the U-shaped groove;

[0014] By adopting the above technical solution, the transfer box can be inserted into the sealing sleeve with a U-shaped groove, thereby achieving the cut-off and sealing of the transfer box.

[0015] Furthermore, the two ends of the transfer box are welded together with end connecting pipes, and the end connecting pipes on both sides of the transfer box are welded together with the feed pipe and the external pipe head, respectively.

[0016] By adopting the above technical solution, the transfer box can be interconnected by welding the feed pipe and the external pipe joint with the end connecting pipe.

[0017] Furthermore, the top of the U-shaped section plate is provided with a screw-on hole, and the threaded rod head of the electric actuator is screwed into the screw-on hole;

[0018] By adopting the above technical solution, the threaded rod head of the electric actuator can be screwed onto the U-shaped section plate through the screw-on hole, which facilitates the electric actuator to drive the U-shaped section plate to lift and lower.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention separates the feed pipe and external connector of the filling valve body and sets up an auxiliary cutting mechanism to connect the feed pipe and the external connector. The transfer box of the auxiliary cutting mechanism, together with the U-shaped cut-off plate driven by the electric push rod, can assemble an additional cutting position between the feed pipe and the external connector. When the filling valve body is working normally, the electric push rod pulls the U-shaped cut-off plate to rise, without affecting the normal conveying and filling of grease. When the filling valve body is closed, the electric push rod drives the U-shaped cut-off plate to fall and cut off, so that the filling valve body has a two-stage cutting-off design to improve its material cutting and sealing effect during grease filling, avoid filling volume errors caused by leakage, and ensure the stable performance of the precise quantitative control function of the weighing filling machine.

[0021] Furthermore, during the filling process, the transfer box is securely welded to the feed pipe and external pipe head through the end connecting pipe. Combined with the precise drive control of the U-shaped plate by the electric actuator, it can respond quickly at the moment of filling start and stop, accurately control the flow of grease, reduce material waste caused by valve not sealing, improve filling efficiency and product quality consistency, and provide a reliable guarantee for grease filling production. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a precision quantitative control device for oil filling according to the present invention.

[0023] Figure 2 This is a schematic diagram showing the electric push rod, pressure cap, and U-shaped section plate of a precision quantitative control device for oil filling according to this utility model.

[0024] Figure 3 This is an exploded view of the auxiliary interception mechanism of a precision quantitative control device for oil filling according to this utility model.

[0025] Figure 4 This is a cross-sectional view of the transfer box of a precision quantitative control device for oil filling according to this utility model.

[0026] Figure 5This is a schematic diagram showing the U-shaped section, sealing sleeve, and sealing ring of a precision quantitative control device for oil filling according to this utility model.

[0027] In the diagram: 1. Filling valve body; 2. Feed pipe; 3. External pipe head; 4. Auxiliary cutting mechanism; 5. Transfer box; 6. End connecting pipe; 7. U-shaped box; 8. U-shaped cut plate; 9. Sealing sleeve; 10. Sealing ring; 11. Sealing gasket; 12. Pressure cap; 13. Electric actuator; 14. Guide hole. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figure 1-5 As shown, a precision quantitative control device for oil filling includes a filling valve body 1, a feed pipe 2, and an external pipe connector 3. The feed pipe 2 is welded to the inlet of the filling valve body 1. The device also includes an auxiliary cutting mechanism 4, which comprises a transfer box 5, a U-shaped box 7, a U-shaped cutting plate 8, a sealing sleeve 9, a sealing ring 10, a pressure cap 12, and an electric push rod 13. The transfer box 5 is welded to the feed pipe 2 and the external pipe connector 3, and a sealing ring is welded to the upper opening of the transfer box 5. A U-shaped box 7 is inserted between the U-shaped box 7 and the transfer box 5. A sealing sleeve 9 for sealing the transfer box 5 is wrapped and glued to the round end plate of the U-shaped box 8. A sealing ring 10 is clamped on the vertical plate of the U-shaped box 8 away from the sealing sleeve 9. A pressure cover 12 is locked to the top of the U-shaped box 7 by bolts. An electric push rod 13 is locked to the surface of the pressure cover 12 by bolts. The telescopic rod head of the electric push rod 13 passes through the pressure cover 12 and is screwed to the U-shaped box 8 inside the transfer box 5.

[0030] Among them, a sealing gasket 11 is pressed between the pressure cap 12 and the U-shaped box 7, and an installation hole for screwing bolts is opened between the sealing gasket 11, the pressure cap 12 and the U-shaped box 7. A guide hole 14 for the extension rod below the electric push rod 13 to pass through is opened through the surface of the pressure cap 12 and the sealing gasket 11.

[0031] By adopting the above technical solution, after the sealing gasket 11 is placed on the top of the U-shaped box 7, the pressure cap 2 is pressed on the surface of the sealing gasket 11, and bolts are inserted into the pressure cap 2, the sealing gasket 11 and the U-shaped box 7 to seal the top of the U-shaped box 7.

[0032] The U-shaped cut plate 8 has grooved surfaces on both sides, and the grooved surfaces and bottom plate surfaces of the U-shaped cut plate 8 are inserted into the sleeve of the sealing sleeve 9 and bonded and fixed.

[0033] By adopting the above technical solution, the U-shaped section plate 8 is inserted into the sealing sleeve 9 with its grooved surface and its own bottom plate surface for bonding and connection, so that the U-shaped section plate 8 can press the sealing sleeve 9 into the transfer box 5 for sealing.

[0034] Among them, the vertical plate surface of the U-shaped section plate 8 above the sealing sleeve 9 is provided with recessed grooves, and a sealing ring 10 is fitted in the recessed groove.

[0035] By adopting the above technical solution, the sealing sleeve 9 can clamp the sealing ring 10 with the concave groove, so that there is a sealing and blocking position between the U-shaped section plate 8 and the transfer box 5 and the U-shaped box 7.

[0036] The transfer box 5 outside the sealing sleeve 9 has a U-shaped groove, and the sealing sleeve 9 is pressed into the U-shaped groove.

[0037] By adopting the above technical solution, the transfer box 5 can be inserted into the sealing sleeve 9 with a U-shaped cut groove, thereby achieving the cut-off and sealing of the transfer box 5.

[0038] The two ends of the transfer box 5 are welded together with end connecting pipes 6, and the end connecting pipes 6 on both sides of the transfer box 5 are welded together with the feed pipe 2 and the external pipe head 3 respectively.

[0039] By adopting the above technical solution, the transfer box 5 can be connected to the feed pipe 2 and the external pipe head 3 by welding the end connecting pipe 6.

[0040] The top of the U-shaped section plate 8 is provided with a screw-on hole, and the threaded rod head of the electric actuator 13 is screwed into the screw-on hole.

[0041] By adopting the above technical solution, the threaded rod head of the electric push rod 13 can be screwed onto the U-shaped section plate 8 through the screw-on hole, which facilitates the electric push rod 13 to drive the U-shaped section plate 8 to lift and lower.

[0042] It should be noted that this utility model is a precise quantitative control device for oil filling. It separates the feed pipe 2 and external connector 3 of the filling valve body 1, and provides an auxiliary cutting mechanism 4 to connect the feed pipe 2 and external connector 3. The transfer box 5 of the auxiliary cutting mechanism 4 can be welded to the feed pipe 2 and external connector 3 via an end connecting pipe 6 for interconnection. Then, the telescopic rod of the electric actuator 13 can pass through the guide hole 14 of the pressure cap 12 and the sealing gasket 11 and screw downwards into the top of the U-shaped cut plate 8. Simultaneously, the U-shaped cut plate 8 can be inserted downwards into the U-shaped box 7 and the transfer box 5. The sealing gasket 11 is placed on top of the U-shaped box 7, and the pressure cap 2 presses against the surface of the sealing gasket 11. Bolts are used to seal the top of the U-shaped box 7. The outer seat plate of the electric actuator 13 can be locked to the top of the pressure cap 2 with bolts. The electric actuator 13 can then be installed using professional electrical technicians. Under the guidance of technicians, the device is connected to the controller of the weighing filling machine for power control. When the external pipe connector 3 is connected to the grease filling and conveying pipeline through the matching clamp, the electric push rod 13 can pull the U-shaped cut plate 8 upward away from the transfer box 5. The grease conveyed quantitatively by the weighing filling machine can enter the external pipe connector 3, the transfer box 5 and the feed pipe 2, and enter the filling valve body 1 for normal filling along the feed pipe 2. When the filling valve body 1 is closed by the pneumatic structure, the electric push rod 13 can drive the U-shaped cut plate 8 to fall into the transfer box 5. The U-shaped cut plate 8 is pressed against the U-shaped cut groove of the transfer box 5 with the sealing sleeve 9 to seal it. This allows the filling valve body 1 to cooperate with the auxiliary cut structure 4 to perform two-stage cut-off of the grease, ensuring accurate and leak-proof filling of the grease at the filling valve body 1. When the U-shaped cut plate 8 is raised and lowered, its plate body is sealed in contact with the transfer box 5 and the U-shaped box 7 with the sealing ring 10 to prevent the grease from overflowing upward.

[0043] It should be noted that this utility model is a precise quantitative control device for oil filling. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precision metering control device for oil filling, comprising a filling valve body (1), a feed pipe (2) and an external pipe head (3), the feed pipe (2) is interconnected and welded at the inlet of the filling valve body (1), characterized in that: It also includes an auxiliary cutting mechanism (4), which includes a transfer box (5), a U-shaped box (7), a U-shaped cutting plate (8), a sealing sleeve (9), a sealing ring (10), a pressure cap (12), and an electric push rod (13). The transfer box (5) is welded between the feed pipe (2) and the outer pipe head (3), and the U-shaped box (7) is welded to the upper opening of the transfer box (5). A U-shaped cutting plate (8) is inserted between the U-shaped box (7) and the transfer box (5), and the U-shaped cutting plate (8) is inserted between the U-shaped box (7) and the transfer box (5). The rounded end of the U-shaped section (8) is wrapped with a sealing sleeve (9) for sealing the transfer box (5). A sealing ring (10) is fitted around the vertical plate of the U-shaped section (8) away from the sealing sleeve (9). The top of the U-shaped box (7) is secured with a pressure cap (12) by bolts, and an electric push rod (13) is secured to the surface of the pressure cap (12) by bolts. The telescopic head of the electric push rod (13) passes through the pressure cap (12) and is screwed to the U-shaped section (8) inside the transfer box (5).

2. A precision dosing control device for oil filling according to claim 1, characterized in that: A sealing gasket (11) is pressed between the pressure cap (12) and the U-shaped box (7), and an installation hole for screwing bolts is provided between the sealing gasket (11), the pressure cap (12) and the U-shaped box (7). A guide hole (14) for the telescopic rod below the electric push rod (13) is provided through the surface of the pressure cap (12) and the sealing gasket (11).

3. A precision dosing control device for oil filling as claimed in claim 1, wherein: The U-shaped cut plate (8) has grooves on both sides, and the grooves and bottom plate of the U-shaped cut plate (8) are inserted into the sealing sleeve (9) and bonded and fixed.

4. The precision dosing control device for oil filling according to claim 1, characterized in that: The vertical plate surface of the U-shaped section (8) above the sealing sleeve (9) is provided with recessed grooves, and a sealing ring (10) is fitted inside the recessed groove.

5. The precision dosing control device for oil filling according to claim 1, characterized in that: A U-shaped groove is provided inside the transfer box (5) outside the sealing sleeve (9), and the sealing sleeve (9) is pressed into the U-shaped groove.

6. The precise quantitative control device for oil filling according to claim 1, characterized in that: The two ends of the transfer box (5) are welded together with end connecting pipes (6), and the end connecting pipes (6) on both sides of the transfer box (5) are welded together with the feed pipe (2) and the external pipe head (3) respectively.

7. The precise quantitative control device for oil filling according to claim 1, characterized in that: The top of the U-shaped section plate (8) is provided with a screw-on hole, and the threaded rod head of the electric push rod (13) is screwed into the screw-on hole.

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