Paint filling device for paint spraying tank

Abstract

A paint filling device for a paint spraying tank belongs to the field of paint spraying and is characterized in that a pressurized paint filling system and a lifting system are arranged in the paint filling device, a pressurized air cylinder is arranged in the pressurized paint filling system, a hydraulic paint filling measuring cup is arranged below the pressurized air cylinder, the upper portion of the hydraulic paint filling measuring cup is connected and communicated with the lower portion of a paint supply barrel, and a paint discharging opening is formed below the paint filling measuring cup; the lifting system comprises a lifting air cylinder, a pressurizing head is arranged below the air cylinder rod end of the lifting system, a hydraulic hose arranged on the paint discharging opening is connected to the pressurizing head, and an inflating valve type one-way paint adding valve is arranged under the pressurizing head. The product structure can be simplified, the equipment cost can be reduced, and user requirements can be met.

Description

Technical Field

[0001] The utility model relates to a paint filling device, in particular to a paint filling device for a paint spray can, and belongs to the field of paint spraying. Background Art

[0002] In daily life, the surfaces of various products have to be painted. Once the surface paint peels off, is scratched or bruised, the appearance of the city will be affected. In particular, once the paint on some metal surfaces that are prone to rust is damaged, rust will occur from the damaged part. Over time, holes or breaks will occur, and the value of the product will be greatly reduced. In order to maintain the beauty of the product and prevent metal products from rusting, etc., timely repairs are required. However, small-area repairs such as scratches do not require the purchase of a large bucket of paint. A small spray can can solve the problem. In addition, this type of spray tube is also used for graffiti, painting, etc. It is very important to add paint to the spray can. In order to be able to spray paint, a base gas needs to be added to the spray tube in advance. The body increases the pressure in the tank. When in use, after shaking the spray can, the base gas will be integrated with the paint, and the paint will be automatically sprayed out after pressing the spray button. Since the base gas is a volatile gas, it will accelerate the curing speed. This spray can is easy to use and will cure in a short time. It will simply deal with scratches and other paint surfaces, and it is difficult to see the repair traces without careful identification. It is deeply loved by users. However, the existing paint filling device has a complex structure and is expensive. Users have low profits after purchase. Therefore, when purchasing a paint filling device, they are always hesitant and lack confidence. The structure and price cannot meet the user's wishes. In order to meet user needs and adapt to market needs, it is necessary to develop equipment with a simple structure and low cost. Summary of the Invention

[0003] In view of the actual situation that the existing paint filling devices are complex in structure and expensive, in order to meet market needs, the utility model provides a paint filling device for a spray can, the purpose of which is to simplify the product structure, reduce equipment costs and meet user needs.

[0004] The technical solution of the utility model is: a paint filling device for a paint spray can, comprising a cylinder, a valve, a frame and a frame base, wherein the paint filling device for the paint spray can comprises a pressurized paint filling system and a lifting system, the pressurized paint filling system and the lifting system are respectively arranged on their respective frames, and the frame of the pressurized paint filling system supports a pressurized cylinder with a cylinder rod downward and a hydraulic paint filling measuring cup, a stamping piston is provided at the end of the cylinder rod of the pressurized cylinder, the stamping piston is directly facing the hydraulic paint filling measuring cup arranged below, the hydraulic paint filling measuring cup is connected to a paint supply bucket above, the upper end of the pressurized paint filling measuring cup and the lower end of the paint supply bucket are connected to each other, a paint discharge outlet is provided below the hydraulic paint filling measuring cup, a hydraulic hose is provided on the paint discharge outlet, the lifting system comprises a lifting cylinder, the lifting cylinder with a cylinder rod downward is arranged in the frame of the lifting system, a pressure head is provided at the cylinder rod end of the lifting system, the hydraulic hose provided on the paint discharge outlet is connected to the pressure head, and a valve-type one-way paint filling valve is provided directly below the pressure head;

[0005] Furthermore, the pressurizing cylinder and the lifting cylinder are connected to compressed gas through a pipeline, a filter, a pressure gauge and a three-way valve are provided on the compressed gas pipeline, two outlets of the three-way valve are connected to the pressurizing cylinder and the lifting cylinder, and a regulating valve is provided on the compressed gas pipeline connected to the three-way valve;

[0006] Furthermore, the outer diameter of the stamping piston is consistent with the inner diameter of the hydraulic paint filling measuring cup, and a U-shaped sealing ring with a downward opening is integrally provided around the stamping piston, and a stainless steel U-shaped tension ring with a downward opening is integrally formed inside the U-shaped sealing ring, and the outer periphery of the stainless steel U-shaped tension ring is coated with injection molding material;

[0007] Furthermore, the lowest position of the pressure head is 3-5 mm smaller than the overall height of the spray can from the frame base, and the height of the lifting cylinder of the lifting system is adjustable;

[0008] Furthermore, a high-pressure liquid level gauge and a measuring cup pressure gauge are provided on the outside of the hydraulic paint filling measuring cup. A four-way valve is provided on the paint discharge pipe provided below the hydraulic paint filling measuring cup. One outlet of the four-way valve is a paint discharge pipe, one is connected to a hydraulic hose, and the other is a discharge tank. An on-off valve is provided in each outlet pipe, and the paint discharge pipe is connected to the paint supply bucket.

[0009] Furthermore, a piston guide cylinder is provided in the paint supply bucket above the hydraulic paint filling measuring cup. The piston guide cylinder is funnel-shaped, and the lower part of the piston guide cylinder is fixedly connected to the upper part of the hydraulic paint filling measuring cup. A plurality of paint inflow holes are provided around the connection part.

[0010] Furthermore, an adjustable base is provided below the paint filling measuring cup, the adjustable base is provided on the frame base, and a lifting bolt is provided between the adjustable base and the frame base.

[0011] The present invention has the following positive effects: by arranging a pressurized air cylinder and a hydraulic paint filling measuring cup in the frame of the pressurized paint filling system, and punching a piston at the cylinder rod end of the pressurized air cylinder, the piston can squeeze the paint downward in the hydraulic paint filling measuring cup to the pressurizing head; by connecting a paint supply bucket above the hydraulic paint filling measuring cup, the paint can enter the hydraulic paint filling measuring cup cylinder from the paint supply bucket under the influence of the cylinder piston; by arranging a guide cylinder with a funnel-shaped punching piston in the paint supply bucket above the hydraulic paint filling measuring cup, the paint can enter the hydraulic paint filling measuring cup along the guide cylinder when the cylinder rod end descends; and by arranging a guide cylinder with a funnel-shaped punching piston below the hydraulic paint filling measuring cup A four-way valve is set on the paint discharge outlet of the device, and one of the ways is connected to the paint supply bucket through a pipeline. The amount of paint in the paint measuring cup can be adjusted by opening and closing the valve on the pipeline connected to the paint supply bucket. The second way is connected to the pressure head through a hydraulic hose. The other way is a drainage pipe, and excess paint can be discharged from the drainage pipe; by connecting a U-shaped sealing ring that is integrated with the stamping piston and has a downward opening at the end of the cylinder rod, when the pressurizing cylinder is stamped downward, under the action of the pressurizing cylinder pressure, the U-shaped sealing ring with the downward opening around the stamping piston will produce a slight expansion deformation toward the periphery. This expansion deformation toward the periphery can prevent the sealing ring from leaking. The seal is not tight, this kind of sealing ring has a long service life and good sealing effect, and is a unique component of our company; by arranging multiple paint inflow holes around the connection part between the lower part of the piston guide cylinder and the upper part of the hydraulic paint filling measuring cup, after the cylinder piston is lifted, the paint can automatically flow into the paint filling measuring cup from the paint supply bucket through the multiple paint inflow holes; by arranging a lifting cylinder in the lifting system, the pressure head can be raised by the cylinder, and a spray paint can can be arranged below the pressure head. By arranging a valve type one-way paint adding valve just below the pressure head, the valve type one-way paint adding valve can be opened after the valve type one-way paint adding valve contacts the paint filling port of the spray paint can, The paint can is added to the paint can; by making the lifting cylinder of the lifting system height adjustable, the height of the lifting cylinder is adjusted to meet the filling needs of spray paint cans of different heights within the adjustment range; by providing an adjustable base under the paint filling measuring cup, the height of the adjustable base can be lowered after the paint filling amount exceeds the range of the paint filling measuring cup, and a larger paint filling measuring cup can be replaced to meet the paint filling needs of the large spray paint can. At the same time, the paint filling measuring cup can be cleaned or replaced with a new one when changing the paint color. The utility model can be used to fill paint for a variety of spray paint cans, which can meet the needs of different users, and has a simple structure, low cost and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the overall side structure of the utility model.

[0013] Figure 2 Schematic diagram of the radial cross-section structure of a stamping piston equipped with a U-shaped sealing ring.

[0014] Explanation of reference numerals: 10-pressurizing cylinder, 10a-descending piston, 10b-raised piston, 11-paint supply bucket, 12-guide cylinder, 13-paint inlet hole, 14-paint filling measuring cup, 15-high-pressure liquid level gauge, 16-adjustable base, 16a-lifting bolt, 17-four-way valve, 18-paint discharge pipe, 18a-drain pipe, 19-on-off valve, 20-lifting cylinder, 21-pressurizing head, 22-valve-type one-way paint supply valve, 23-hydraulic hose, 30-compressed gas pipeline, 31-filter, 32-pressure gauge, 33-regulating valve, 34-three-way valve, 35-base, 36-top plate, 37-frame, 40-ramming piston, 41-U-shaped sealing ring with downward opening, 42-stainless steel U-shaped tension ring with downward opening. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be described in more detail below with reference to the accompanying drawings.

[0016] The technical solution of the utility model is: a paint filling device for a paint spray can, Figure 1 This is a schematic diagram of the overall side structure of the present invention. It includes a cylinder, a valve, a frame 37, a frame base 35, and a top plate 36. The paint can filling device includes a pressurized paint filling system and a lifting system, each of which is mounted on a separate frame 37. The frame 37 of the pressurized paint filling system supports a pressurized cylinder 10 with a downward-facing cylinder rod 43 and a hydraulic paint filling measuring cup 14. A stamping piston 40 is mounted at the end of the cylinder rod 43 of the pressurized cylinder 10. Figure 1 The drawing shows the descending piston 10a and the raised piston 10b (divided by dotted lines). The stamping piston 40 is facing the hydraulic paint filling measuring cup 14 arranged below. The hydraulic paint filling measuring cup 14 is connected to the paint supply bucket 11 above. The upper end of the hydraulic paint filling measuring cup 14 is connected to the lower end of the paint supply bucket 11. A paint discharge outlet is provided below the hydraulic paint filling measuring cup 14, and the paint discharge outlet is connected to a hydraulic hose 23 through a four-way valve 17. The lifting system includes a lifting cylinder 20, which is arranged below the top plate 36 of the lifting system. The lifting cylinder 20 with the cylinder rod downward is arranged in the frame 37 of the lifting system. A pressure head 21 is provided at the cylinder rod end of the lifting system. The hydraulic hose 23 provided on the paint discharge outlet is connected to the pressure head 21. A valve-type one-way paint filling valve 22 is provided directly below the pressure head 21. When the lifting system descends, the valve-type one-way paint filling valve 22 contacts the paint filling port of a similarly arranged spray can and automatically opens to inject paint into the spray can.

[0017] The pressurizing cylinder 10 and the lifting cylinder 20 are connected to compressed gas via a compressed gas pipeline 30. The compressed gas pipeline 30 is provided with a filter 31, a pressure gauge 32, and a three-way valve 34. The two outlets of the three-way valve 34 are connected to the pressurizing cylinder 10 and the lifting cylinder 20. A regulating valve 33 is provided on the compressed gas pipeline 30 connected to the three-way valve 34.

[0018] Figure 2 A schematic diagram of the radial cross-sectional structure of a stamping piston provided with a U-shaped sealing ring is shown. The outer diameter of the stamping piston 40 is consistent with the inner diameter of the hydraulic paint filling measuring cup 14. A U-shaped sealing ring 41 with an opening downward is integrally provided around the stamping piston 40. A stainless steel U-shaped tension ring 42 with an opening downward is integrally formed inside the U-shaped sealing ring 41 with an opening downward. The outer periphery of the stainless steel U-shaped tension ring 42 with an opening downward is coated with an injection molding material, specifically a polytetrafluoroethylene material in this embodiment.

[0019] The lowest position of the pressure head 21 is 3-5 mm smaller than the overall height of the spray can at the base 35 of the frame. The cylinder height of the lifting system is adjustable, which can meet the paint filling needs of spray cans of various heights within the height adjustment range.

[0020] A high-pressure liquid level gauge 15 and a measuring cup pressure gauge are provided on the outside of the hydraulic paint filling measuring cup 14. A four-way valve 17 is provided on the paint discharge outlet provided below the hydraulic paint filling measuring cup 14. One outlet of the four-way valve 17 is a paint discharge pipe 18, one is connected to the hydraulic hose 23, and the other is a discharge pipe 18a. An opening and closing valve 19 is provided in each outlet pipeline, and the paint discharge pipe is connected to the paint supply bucket 11 through a pipeline.

[0021] The lowest position of the pressure head 21 is 3-5mm smaller than the overall height of the spray can from the frame base 35, and the height of the lifting cylinder 20 of the lifting system is adjustable.

[0022] A piston guide cylinder 12 is provided in the paint supply bucket 11 above the hydraulic paint filling measuring cup 14. The piston guide cylinder is funnel-shaped. The lower part of the piston guide cylinder is fixedly connected to the upper part of the hydraulic paint filling measuring cup 14. A plurality of paint inflow holes are provided around the connection part.

[0023] Furthermore, an adjustable base 16 is provided below the paint filling measuring cup 14 . The adjustable base 16 is provided on the frame base 35 . A lifting bolt 16 a is provided between the adjustable base 16 and the frame base 35 .

[0024] The present invention has the following positive effects: by arranging a pressurized cylinder 10 and a hydraulic paint filling measuring cup 14 in the frame 37 of the pressurized paint filling system, and punching a piston 40 at the end of the cylinder rod 43 of the pressurized cylinder 10, the punching piston 40 can squeeze the paint downward in the hydraulic paint filling measuring cup 14 to the pressurizing head 21, by connecting a paint supply bucket 11 above the hydraulic paint filling measuring cup 14, the paint can enter the hydraulic paint filling measuring cup cylinder 14 from the paint supply bucket 11 under the action of the punching piston 40, by arranging a funnel-shaped piston guide cylinder 12 in the paint supply bucket 11 above the hydraulic paint filling measuring cup 14, the paint can enter the hydraulic paint filling measuring cup 14 along the guide cylinder 12 when the cylinder rod end descends, and by A four-way valve 17 is provided on the paint discharge outlet, and one of the paint discharge pipes 18 is connected to the paint supply bucket 11 through a pipeline. The amount of paint in the paint filling measuring cup 14 can be adjusted by opening and closing the valve 19 on the paint discharge pipe 18 connected to the paint supply bucket 11. The second way is to the pressure head 21 through the hydraulic hose 23. The other way is the discharge pipe 18a, and the excess paint can be discharged from the discharge pipe 18a. By connecting the rod end of the cylinder rod 43 with the stamping piston 40 as a whole and with a U-shaped sealing ring 41 with a downward opening around it, when the pressurizing cylinder 10 is stamped downward, under the pressure of the pressurizing cylinder 10, the U-shaped sealing ring 41 with a downward opening around the stamping piston 40 will produce a slight deformation toward the periphery under the pressure of the downward pressure of the pressurizing cylinder 10. This deformation can prevent the sealing ring from The seal is not tight. After the pressure is released, it recovers to its original shape under the action of the downward-opening stainless steel U-shaped tension ring 42. This kind of seal has a long service life and good sealing effect. It is a unique component of our company. By arranging a plurality of paint inflow holes 13 around the connection part between the lower part of the piston guide cylinder 12 and the upper part of the hydraulic paint filling measuring cup 14, the paint can automatically enter the paint filling measuring cup 14 from the paint supply bucket 11 through the paint inflow holes 13 after the cylinder piston 40 is lifted. By arranging a lifting cylinder 20 in the lifting system, the pressure head 21 can be raised by the lifting cylinder, and a spray paint can can be arranged below the pressure head 21. By arranging a valve nozzle type one-way paint filling valve 22 just below the pressure head 21, the valve nozzle type one-way paint filling valve 22 and the paint filling can can be connected. After the paint mouth contacts, the valve mouth type one-way paint adding valve 22 is opened to add paint to the spray paint can; by making the lifting cylinder 20 of the lifting system height adjustable, by adjusting the lifting height of the lifting cylinder 20, it is possible to meet the paint filling needs of spray paint cans of different heights within the adjustment range; by providing an adjustable base 16 under the paint filling measuring cup 14, the height of the adjustable base 16 can be lowered after the paint filling amount exceeds the range of the paint filling measuring cup 14, and a large paint filling measuring cup 14 can be replaced to meet the paint filling needs of the large spray paint can. At the same time, the paint filling measuring cup 14 can also be cleaned or replaced with a new one when changing the paint color. By using the utility model, a variety of spray paint cans can be filled with paint to meet the needs of different users, and it has a simple structure, low cost and is easy to use.

Claims

1. A paint filling device for a spray can, comprising a cylinder, a valve, a frame and a frame base, characterized in that: The paint filling device of the paint spray can includes a pressurized paint filling system and a lifting system, which are respectively arranged on their own frames. The frame of the pressurized paint filling system supports a pressurized cylinder with a cylinder rod downward and a hydraulic paint filling measuring cup. A stamping piston is provided at the end of the cylinder rod of the pressurized cylinder, and the stamping piston is facing the hydraulic paint filling measuring cup arranged below. A paint supply bucket is connected above the hydraulic paint filling measuring cup, and the upper end of the pressurized paint filling measuring cup and the lower end of the paint supply bucket are connected to each other. A paint discharge outlet is provided below the hydraulic paint filling measuring cup, and a hydraulic hose is provided on the paint discharge outlet. The lifting system includes a lifting cylinder, and the lifting cylinder with a cylinder rod downward is arranged in the frame of the lifting system. A pressure head is provided at the end of the cylinder rod of the lifting system, and the hydraulic hose provided on the paint discharge outlet is connected to the pressure head. A valve-type one-way paint filling valve is provided directly below the pressure head.

2. A paint filling device for a spray can according to claim 1, characterized in that: The pressurizing cylinder and the lifting cylinder are connected to compressed gas through a pipeline. A filter, a pressure gauge and a three-way valve are provided on the compressed gas pipeline. The two outlets of the three-way valve are connected to the pressurizing cylinder and the lifting cylinder. A regulating valve is provided on the compressed gas pipeline connected to the three-way valve.

3. The paint filling device for a spray can according to claim 1, characterized in that: The outer diameter of the stamping piston is consistent with the inner diameter of the hydraulic paint filling measuring cup. A U-shaped sealing ring with an opening downward is integrally provided around the stamping piston. A stainless steel U-shaped tension ring with an opening downward is integrally formed inside the U-shaped sealing ring with an opening downward. The outer periphery of the stainless steel U-shaped tension ring with an opening downward is coated with injection molding material.

4. The paint filling device for a spray can according to claim 1, characterized in that: A high-pressure liquid level gauge and a measuring cup pressure gauge are installed on the outside of the hydraulic paint filling measuring cup. A four-way valve is installed on the paint discharge pipe installed below the hydraulic paint filling measuring cup. One of the outlets of the four-way valve is a paint discharge pipe, one is connected to a hydraulic hose, and the other is a drain tank. An opening and closing valve is installed in each outlet pipe, and the paint discharge pipe is connected to the paint supply bucket.

5. The paint filling device for a spray can according to claim 1, characterized in that: The lowest position of the pressure head is 3-5 mm smaller from the frame base than the overall height of the paint spray can, and the height of the lifting cylinder of the lifting system is adjustable.

6. The paint filling device for a spray can according to claim 1, characterized in that: A piston guide cylinder is provided in the paint supply bucket above the hydraulic paint filling measuring cup. The piston guide cylinder is funnel-shaped. The lower part of the piston guide cylinder is fixedly connected to the top of the hydraulic paint filling measuring cup, and multiple paint inflow holes are provided around the connection part.

7. The paint filling device for a spray can according to claim 1, characterized in that: An adjustable base is provided below the paint filling measuring cup, the adjustable base is provided on the frame base, and a lifting bolt is provided between the adjustable base and the frame base.

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