Liquid level control device of vacuum impregnation machine

Abstract

The utility model discloses a liquid level control device of a vacuum impregnation machine. The liquid level control device comprises a storage box for storing impregnation paint and a cylinder body for impregnating products, the cylinder body is arranged above the storage box, a cylinder cover is arranged on the cylinder body, a vacuum pump used for vacuumizing the interior of the cylinder body is installed on one side of the cylinder body, and a connecting pipe used for conveying impregnation paint is arranged at the bottom of the cylinder body; a tray for placing a product is mounted in the cylinder body, leak holes are formed in the tray for impregnation paint to pass through, a surrounding edge is arranged on the periphery of the tray, and a liquid level sensor is mounted on one side of the surrounding edge; the lifting mechanism is used for driving the tray to lift; the lifting mechanism comprises a sliding base and a lead screw, the lead screw is rotationally installed on one side in the cylinder body, the sliding base is installed on the lead screw, and one side of the sliding base is fixedly connected to the outer wall of the surrounding edge of the tray. Different liquid levels can be adjusted according to different products, and the requirements of different products or processes for the liquid level are met.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum impregnation equipment, in particular to a liquid level control device for a vacuum impregnation machine. Background Art

[0002] Vacuum impregnation equipment, also known as vacuum varnishing equipment or a vacuum impregnator, is a type of industrial equipment used to process electrical components. Its primary function is to place the workpiece to be processed in a vacuum container. The vacuum removes moisture, air, and other volatile substances from the workpiece. The vacuum then facilitates the penetration of insulating materials (such as insulating varnish) into the tiny gaps within the workpiece. This treatment method improves the workpiece's insulation properties, mechanical strength, and resistance to moisture and mildew. Using vacuum impregnation equipment can significantly improve product quality, reduce production costs, and enhance product competitiveness.

[0003] A search revealed Chinese patent application number CN201220703700.3, which discloses an automatic vacuum impregnation machine. The machine features a chassis, a controller, and a varnish bucket. The controller is connected to the chassis, and the varnish bucket is equipped with an air inlet valve and an air release valve. The chassis is equipped with a varnish inlet valve on the back, and the varnish bucket is connected to the varnish inlet valve. The chassis is equipped with a sealed tank and a tank cover, and a liquid level sensor is located within the sealed tank. This invention, compared to existing technologies, improves work efficiency and reduces the time and errors associated with manually adding varnish, thereby reducing production costs.

[0004] The above technical solution, like the traditional vacuum impregnation equipment, lacks a liquid level control mechanism, cannot adjust different liquid levels for different products, and cannot meet the liquid level requirements of different products or processes. Therefore, we need to propose a vacuum impregnation machine liquid level control device. Utility Model Content

[0005] The purpose of the present utility model is to provide a liquid level control device for a vacuum impregnation machine. The device has a simple structure and is easy to use. It can drive the tray to rise and fall in the cylinder through a driving mechanism. When the liquid level in the cylinder is constant, the relative liquid level of the product is changed, so that different liquid levels can be adjusted for different products, meeting the liquid level requirements of different products or processes, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A liquid level control device for a vacuum impregnation machine, comprising:

[0008] Storage tanks for storing impregnated varnish and cylinders for impregnated products;

[0009] The cylinder body is arranged above the storage box, a cylinder cover is provided on the cylinder body, a vacuum pump for evacuating the cylinder body is installed on one side of the cylinder body, and a connecting pipe for conveying impregnated paint is provided at the bottom of the cylinder body;

[0010] A tray for placing products is installed in the cylinder body, a leakage hole is provided on the tray for the impregnation paint to pass through, a surrounding edge is provided on the periphery of the tray, and a liquid level sensor is installed on one side of the surrounding edge;

[0011] Also included is a lifting mechanism for driving the pallet to rise and fall;

[0012] The lifting mechanism includes a slide and a screw rod. The screw rod is rotatably installed on one side of the cylinder body, and the slide is installed on the screw rod. One side of the slide is fixedly connected to the outer wall of the edge of the tray.

[0013] Preferably, a vacuum tube is installed at the air extraction end of the vacuum pump, the vacuum tube is connected to the cylinder body, and a first valve is installed on the vacuum tube.

[0014] Preferably, the lower end of the connecting pipe passes through the storage box and extends to the inner bottom thereof, and a second valve is installed on the connecting pipe.

[0015] Preferably, a box cover is installed on one side of the storage box, and a balancing pipe for balancing the air pressure in the storage box is provided on the box cover.

[0016] Preferably, a first side plate is provided at the upper end of the inner wall of one side of the cylinder body, and the screw rod is rotatably installed between the first side plate and the bottom of the cylinder body.

[0017] Preferably, a sealed bearing is embedded on one side of the bottom of the cylinder body, the lower end of the screw rod is inserted and fixed to the inner ring of the sealed bearing, and a motor is installed on one side of the bottom of the cylinder body, and the output end of the motor is transmission-connected to the lower end of the screw rod.

[0018] Preferably, a second side plate is provided at the upper end of the inner wall on the other side of the cylinder body, a guide rod is provided between the second side plate and the bottom of the cylinder body, a guide seat is slidably sleeved on the guide rod, and one side of the guide seat is fixedly connected to the outer wall of the edge of the tray.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model arranges a cylinder body above the storage box, a tray with a leakage hole is arranged in the cylinder body, and a driving mechanism for driving the tray to rise and fall is arranged in the cylinder body. The driving mechanism includes a screw rod and a slide seat. The device has a simple structure and is easy to use. The driving mechanism can drive the tray to rise and fall in the cylinder body. When the liquid level in the cylinder body is constant, the relative liquid level of the product is changed, so that different liquid levels can be adjusted for different products, meeting the liquid level requirements of different products or processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a structural diagram of the storage box of the utility model;

[0023] Figure 3 It is a structural diagram of the cylinder body of the utility model.

[0024] In the figure: 1. Storage box; 2. Cylinder body; 3. Cylinder head; 4. Observation port; 5. Vacuum pump; 6. Vacuum tube; 7. First valve; 8. Connecting pipe; 9. Second valve; 10. Box cover; 11. Balance tube; 12. Tray; 13. Leak hole; 14. Liquid level sensor; 15. First side panel; 16. Screw rod; 17. Motor; 18. Slide; 19. Second side panel; 20. Guide rod; 21. Guide seat. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-3 , the utility model provides a technical solution:

[0027] A liquid level control device for a vacuum impregnation machine, comprising:

[0028] A storage box 1 for storing impregnating paint and a cylinder 2 for impregnating products are provided above the storage box 1. Cylinder 2 is fitted with a cylinder cover 3. A vacuum pump 5 is mounted on one side of the cylinder 2 for evacuating the interior of the cylinder 2. A connecting pipe 8 for conveying impregnating paint is located at the bottom of the cylinder 2. A tray 12 for placing the product is mounted within the cylinder 2. Tray 12 is provided with a leak hole 13 for the impregnating paint to pass through. Tray 12 is surrounded by a rim, and a liquid level sensor 14 is mounted on one side of the rim. A vacuum tube 6 is mounted on the suction end of the vacuum pump 5, connecting to the cylinder 2. A first valve 7 is mounted on the vacuum tube 6. The lower end of the connecting pipe 8 passes through the storage box 1 and extends to its inner bottom. A second valve 9 is mounted on the connecting pipe 8. A lid 10 is mounted on one side of the storage box 1, and a balancing pipe 11 is mounted on the lid 10 to balance the air pressure within the storage box 1.

[0029] The cylinder 2 also includes a lifting mechanism for driving the tray 12 up and down. The lifting mechanism includes a slide 18 and a screw 16. The screw 16 is rotatably mounted on one side of the cylinder 2. The screw 16 is mounted on the slide 18, and one side of the slide 18 is fixedly connected to the outer wall of the tray 12. A first side plate 15 is provided at the upper end of the inner wall of one side of the cylinder 2. The screw 16 is rotatably mounted between the first side plate 15 and the bottom of the cylinder 2. A sealed bearing is embedded in one side of the bottom of the cylinder 2. The lower end of the screw 16 is inserted and fixed to the inner ring of the sealed bearing. A motor 17 is installed on one side of the bottom of the cylinder 2. The output end of the motor 17 is in driving connection with the lower end of the screw 16.

[0030] By arranging a cylinder 2 above the storage box 1, a tray 12 with a leak hole 13 is arranged in the cylinder 2, and a driving mechanism for driving the tray 12 to move up and down is arranged in the cylinder 2, and the driving mechanism includes a screw rod 16 and a slide 18. When in use, the cylinder cover 3 is opened, and the product is placed on the tray 12. After closing the cylinder cover 3, the second valve 9 is closed and the first valve 7 is opened, the vacuum pump 5 is started to evacuate the cylinder 2 to form a negative pressure environment. After that, the first valve 7 is closed and the second valve 9 is opened. Under the action of the negative pressure, the connecting pipe 8 draws the insulating paint in the storage box 1 into the cylinder 2. When the air pressure in the cylinder 2 reaches equilibrium, the second valve 9 is closed. According to the requirements of the impregnation liquid level of different products, the motor 17 is started to drive the screw rod 16 to work, and the slide 18 drives the tray 12 to move down and immerse into the corresponding liquid level. After the cyclic impregnation is completed, the second valve 9 and the cylinder 2 are closed, and the impregnated paint flows back to the storage box 1. The product can be taken out after being drained.

[0031] In general, the device has a simple structure and is easy to use. The driving mechanism can drive the tray 12 to rise and fall in the cylinder 2. When the liquid level in the cylinder 2 is constant, the relative liquid level of the product is changed, so that different liquid levels can be adjusted for different products, meeting the liquid level requirements of different products or processes.

[0032] The cylinder head 3 is also provided with an observation port 4 for observing the internal situation of the cylinder body 2;

[0033] A filtering structure is also installed on the connecting pipe 8 to filter the refluxed impregnated paint;

[0034] Also, see Figure 3 :

[0035] A second side plate 19 is provided at the upper end of the inner wall on the other side of the cylinder body 2, and a guide rod 20 is provided between the second side plate 19 and the bottom of the cylinder body 2. A guide seat 21 is slidably sleeved on the guide rod 20, and one side of the guide seat 21 is fixedly connected to the outer wall of the edge of the tray 12.

[0036] By setting a second side plate 19 in the cylinder body 2 and a guide rod 20 at the bottom of the second side plate 19, a guide seat 21 on one side of the tray 12 is slidably installed on the guide rod 20, which can play a good guiding role when the tray 12 is raised and lowered, and at the same time, improve the load-bearing capacity and stability of the tray 12.

[0037] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A liquid level control device for a vacuum impregnation machine, characterized in that: include: A storage box (1) for storing impregnating paint and a cylinder (2) for impregnating product; The cylinder body (2) is arranged above the storage box (1), a cylinder cover (3) is provided on the cylinder body (2), a vacuum pump (5) for evacuating the cylinder body (2) is installed on one side of the cylinder body (2), and a connecting pipe (8) for conveying impregnated paint is provided at the bottom of the cylinder body (2); A tray (12) for placing products is installed in the cylinder body (2), a leak hole (13) is provided on the tray (12) for the impregnation paint to pass through, a peripheral edge is provided on the periphery of the tray (12), and a liquid level sensor (14) is installed on one side of the peripheral edge; Also included is a lifting mechanism for driving the tray (12) to move up and down; The lifting mechanism comprises a slide (18) and a screw rod (16); the screw rod (16) is rotatably mounted on one side of the cylinder body (2); the screw rod (16) is mounted on the slide (18); and one side of the slide (18) is fixedly connected to the outer wall of the edge of the tray (12).

2. The liquid level control device of a vacuum impregnation machine according to claim 1, characterized in that: A vacuum tube (6) is installed at the air extraction end of the vacuum pump (5), the vacuum tube (6) is connected to the cylinder body (2), and a first valve (7) is installed on the vacuum tube (6).

3. The liquid level control device of a vacuum impregnation machine according to claim 1, characterized in that: The lower end of the connecting pipe (8) passes through the storage box (1) and extends to the inner bottom thereof. A second valve (9) is installed on the connecting pipe (8).

4. The liquid level control device of a vacuum impregnation machine according to claim 1, characterized in that: A box cover (10) is installed on one side of the storage box (1), and a balancing pipe (11) for balancing the air pressure in the storage box (1) is provided on the box cover (10).

5. The liquid level control device of a vacuum impregnation machine according to claim 1, characterized in that: A first side plate (15) is provided at the upper end of the inner wall of one side of the cylinder body (2), and a screw rod (16) is rotatably installed between the first side plate (15) and the inner bottom of the cylinder body (2).

6. The liquid level control device of a vacuum impregnation machine according to claim 5, characterized in that: A sealed bearing is embedded on one side of the bottom of the cylinder body (2), and the lower end of the screw rod (16) is plugged and fixed to the inner ring of the sealed bearing. A motor (17) is installed on one side of the bottom of the cylinder body (2), and the output end of the motor (17) is transmission-connected to the lower end of the screw rod (16).

7. The liquid level control device of a vacuum impregnation machine according to claim 1, characterized in that: A second side plate (19) is provided at the upper end of the inner wall on the other side of the cylinder body (2), a guide rod (20) is provided between the second side plate (19) and the inner bottom of the cylinder body (2), a guide seat (21) is slidably sleeved on the guide rod (20), and one side of the guide seat (21) is fixedly connected to the outer wall of the surrounding edge of the tray (12).

Images