Automatic metering system of paint spraying electronic scale

Abstract

The invention relates to the technical field of paint spraying electronic scales, and particularly discloses a paint spraying electronic scale automatic metering system which comprises a liquid storage device. The liquid spraying device comprises a connector and a paint spraying gun, one end of the connector is fixedly connected with the liquid storage device and communicated with the liquid storage device, and the other end of the connector is detachably connected with the paint spraying gun. The weighing device comprises an electronic scale and a metering trigger mechanism, the electronic scale is installed below the liquid storage device, the metering trigger mechanism is connected with a muzzle of the paint spraying gun, the metering trigger mechanism is connected with the connector, the metering trigger mechanism is electrically connected with the electronic scale through the connector, and when the connector is connected with the paint spraying gun, the metering trigger mechanism blocks the muzzle of the paint spraying gun; and when the connector is separated from the paint spraying gun, the metering trigger mechanism is separated from the muzzle of the paint spraying gun. The paint spraying electronic scale has the effect that the error existing between the recorded amount of the paint for spraying and the actual amount of the paint for spraying in the using process of the paint spraying electronic scale is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic scales for spray painting, and in particular to an automatic metering system for electronic scales for spray painting. Background Art

[0002] A paint spraying electronic scale is an electronic scale used in the painting process. Its function is to weigh and record the amount of remaining paint during the painting process, thereby calculating the weight of the paint sprayed and monitoring the amount of paint sprayed.

[0003] After painting, the paint gun needs to be cleaned to reduce the probability of the paint remaining in the paint gun hardening in the paint gun, which will cause the paint gun to be blocked. After cleaning the remaining paint in the paint gun and reinstalling it, the amount of paint cleaned in the paint gun will also be recorded by the paint electronic scale.

[0004] During the use of conventional electronic paint scales, the remaining cleaned paint in the paint spray gun will also be recorded by the electronic paint scale, resulting in an error between the amount of paint used for spraying recorded by the electronic paint scale and the actual amount of paint used for spraying. Summary of the invention

[0005] In order to reduce the error between the amount of paint used for spraying recorded during the use of the electronic paint spraying scale and the actual amount of paint used for spraying, the present application provides an automatic metering system for the electronic paint spraying scale.

[0006] The present application provides an automatic metering system for electronic paint scales that adopts the following technical solutions: An automatic metering system for a paint spraying electronic scale, comprising: liquid storage device; A liquid spraying device, comprising a connecting head and a paint spray gun, wherein one end of the connecting head is fixedly connected to the liquid storage device and communicates with the liquid storage device, and the other end of the connecting head is detachably connected to the paint spray gun; The weighing device comprises an electronic scale and a metering trigger mechanism, wherein the electronic scale is installed below the liquid storage device, the metering trigger mechanism is connected to the muzzle of the paint spray gun, the metering trigger mechanism is connected to the connector, and the metering trigger mechanism is electrically connected to the electronic scale through the connector. When the connector is connected to the paint spray gun, the metering trigger mechanism blocks the muzzle of the paint spray gun; when the connector is separated from the paint spray gun, the metering trigger mechanism is separated from the muzzle of the paint spray gun.

[0007] By adopting the above technical solution, during the painting process, when the paint spray gun is connected to the liquid storage device through the connector, the metering trigger mechanism is electrically connected to the electronic scale. When the trigger of the paint spray gun is pulled, the metering trigger mechanism starts to record the data of the electronic scale. When the paint spray gun is separated from the connector, the metering trigger mechanism is also separated from the electronic scale, and the data of the electronic scale during the period is recorded, and the change in the electronic scale data is calculated. The data difference of the electronic scale recorded by the metering trigger mechanism at this time is the actual loss of the paint used for spraying this time. During the cleaning process of the paint spray gun, the automatic separation of the metering trigger mechanism and the muzzle of the paint spray gun can also facilitate the cleaning of the paint spray gun. When the paint spray gun is reconnected to the connector, the metering trigger mechanism can be electrically connected to the electronic scale again, and automatically cover the muzzle of the paint spray gun, which is convenient for measuring the actual amount of paint sprayed for the next painting, and finally reduces the error between the amount of paint used for spraying recorded during the use of the paint spraying electronic scale and the amount of paint actually used for spraying.

[0008] Optionally, the connector is provided with a first liquid hole, an automatic flow blocking mechanism is arranged in the first liquid hole, and a flow starting mechanism is arranged on the side of the paint spray gun connected to the connector, and the flow starting mechanism is used to open the automatic flow blocking mechanism.

[0009] By adopting the above technical solution, the automatic flow blocking mechanism in the connector can block the first liquid hole when the paint spray gun is separated from the connector, thereby reducing the probability of the paint liquid in the liquid storage device flowing out of the connector. When the paint spray gun is connected to the connector, the flow starter mechanism can open the automatic flow blocking mechanism, so that the paint spray gun is connected to the first liquid hole, and then the paint can be sprayed out from the paint spray gun.

[0010] Optionally, the automatic flow blocking mechanism includes a first sealing plate and a second sealing plate, the first sealing plate and the second sealing plate are both arranged in the first liquid hole, one side of the first sealing plate and the second sealing plate are slidably abutted, the first sealing plate and the second sealing plate seal the first liquid hole, the end of the first sealing plate facing away from the second sealing plate is connected to the first trigger plate, and the end of the second sealing plate facing away from the first sealing plate is connected to the second trigger plate, the first trigger plate and the second trigger plate are both arranged obliquely toward the center of the first liquid hole from the direction of the paint spray gun toward the liquid storage device, the first trigger plate and the second trigger plate are both hinged to the hole wall of the first liquid hole on the side facing the paint spray gun, the flow starting mechanism slidably abuts the first trigger plate and the second trigger plate, the first trigger plate controls the movement of the first sealing plate, the second trigger plate controls the movement of the second sealing plate, the first trigger plate and the second trigger plate are both connected to a reset mechanism, and the first sealing plate and the second sealing plate move in opposite directions to connect to the first liquid hole.

[0011] By adopting the above technical solution, when the paint spray gun is separated from the connector, the first trigger plate and the second trigger plate drive the first sealing plate and the second sealing plate to move toward the center of the first liquid hole under the action of the reset mechanism, and the first sealing plate and the second sealing plate contact and slide toward each other, thereby blocking the first liquid hole and achieving the function of automatic flow blocking. When the paint spray gun is connected to the connector, the flow-starting mechanism slides against the first trigger plate and the second trigger plate and moves in the direction of the liquid storage device in the first liquid hole, so that the first trigger plate and the second trigger plate move away from the center of the first liquid hole, and then drive the first sealing plate and the second sealing plate to move away from the first liquid hole, so that the first liquid hole is connected to the paint spray gun, and the paint liquid can enter the paint spray gun and be sprayed out by the paint spray gun.

[0012] Optionally, a second liquid hole is provided in the paint spray gun, and the flow-starting mechanism includes a liquid flow tube, a first flow-starting plate and a second flow-starting plate, the liquid flow tube is connected to the second liquid hole, the first flow-starting plate and the second flow-starting plate are fixedly connected to the outer wall of the liquid flow tube, and the first flow-starting plate and the second flow-starting plate are arranged opposite to each other.

[0013] By adopting the above technical solution, when the paint spray gun is connected to the connector, the first flow-starting plate abuts against the first trigger plate, and the second flow-starting plate abuts against the second trigger plate, and when the paint spray gun continues to move in the first liquid hole toward the direction of the liquid storage device, the first flow-starting plate and the second flow-starting plate can drive the first trigger plate and the second trigger plate to move in the direction away from the center of the first liquid hole, thereby driving the first sealing plate and the second sealing plate to slide relative to each other and make the first liquid hole and the second liquid hole connected, so that the paint liquid can flow from the liquid storage device into the paint spray gun. The first flow-starting plate and the second flow-starting plate, which are arranged opposite to each other, can abut against the first trigger plate and the second trigger plate toward the liquid storage device by the side away from the liquid storage device, so that the connector and the paint spray gun remain connected. When the paint spray gun and the connector are separated, the paint spray gun is rotated so that the first flow-starting plate and the second flow-starting plate are separated from the first trigger plate and the second trigger plate, so that the connector and the paint spray gun can be separated.

[0014] Optionally, the metering trigger mechanism includes a blocking plate, a data storage device, a connecting air pipe and a trigger block, one side of the blocking plate is hinged to the paint spray gun and covers the muzzle of the paint spray gun, the trigger of the paint spray gun is connected to the blocking plate, the blocking plate is electrically connected to the data storage device, the blocking plate is hinged to one side of the paint spray gun and connected to one end of the connecting air pipe, the other end of the connecting air pipe is connected to the trigger block, the data storage device is electrically connected to the trigger block, the trigger block is slidably connected to one end of the paint spray gun facing the connector, and the trigger block abuts the connector.

[0015] By adopting the above technical solution, when the paint spray gun is connected to the connector, the connector uses the reaction force to make the trigger block move in the direction of the paint spray gun away from the connector, thereby compressing the connecting air pipe, so that the pressure in the connecting air pipe increases, and the connecting air pipe drives the blocking plate to rotate, and the blocking plate rotates to block the muzzle of the paint spray gun. When spraying paint, the trigger of the paint spray gun drives the blocking plate to rotate, so that the data storage device starts to work, and the data storage device records the data of the electronic scale. After the painting is finished, the paint spray gun is separated from the connector, the trigger block is separated from the connector, the trigger block no longer compresses the connecting air pipe, and the force of the connecting air pipe on the blocking plate is weakened, so that the blocking plate is separated from the muzzle of the paint spray gun, which is convenient for cleaning the paint spray gun. At the same time, the electrical connection between the data storage device and the electronic scale is disconnected, and the data storage device no longer records the data of the electronic scale.

[0016] Optionally, the metering trigger mechanism is electrically connected to a reset button, and the reset button is connected to the paint spray gun.

[0017] By adopting the above technical solution, when there is too much data stored in the metering trigger mechanism, the metering trigger mechanism can be reset through the reset button. The reset button is arranged on the paint spray gun, which is convenient for resetting the metering trigger mechanism when using the paint spray gun.

[0018] Optionally, a sealing ring is connected to one end of the paint spray gun facing the connecting head.

[0019] By adopting the above technical solution, the sealing ring can reduce the probability of paint leakage at the connection between the paint spray gun and the connector, thereby improving the sealing performance of the connection between the paint spray gun and the connector.

[0020] Optionally, the weighing device further includes a moving mechanism, the upper end surface of the electronic scale abuts against the liquid storage device, and the lower end surface of the electronic scale is connected to the moving mechanism.

[0021] By adopting the above technical solution, the moving mechanism arranged below the electronic scale can drive the electronic scale and the liquid storage device to move, so as to facilitate the detection of the amount of paint sprayed while spraying paint on places to be sprayed at different positions.

[0022] Optionally, the moving mechanism includes a support plate, moving wheels and a moving armrest, the support plate abuts against the bottom end of the electronic scale, the moving wheels are connected to the bottom end of the support plate, and the moving armrest is connected to one side of the support plate.

[0023] By adopting the above technical solution, the support plate provides a placement platform for the electronic scale, the moving wheels enable the support plate to move on a plane, and the moving armrest provides a gripping position for the user, making it convenient to control the moving direction of the moving mechanism.

[0024] Optionally, the movable armrest is provided with anti-slip grooves.

[0025] By adopting the above technical solution, the anti-slip pattern reduces the probability of the user slipping when driving the moving device to move, making it easier for the staff to grip the moving handrail.

[0026] Compared with the prior art, the present invention has at least one of the following beneficial technical effects: 1. When the present invention is spraying paint, the paint spray gun sprays the paint liquid stored in the liquid storage device, and when the trigger of the paint spray gun is pulled, the metering trigger mechanism starts to record the data of the electronic scale. When the paint spray gun is separated from the connecting head, the metering trigger mechanism is also synchronously separated from the electronic scale. At this time, the metering trigger mechanism stops recording the data of the electronic scale, and the metering trigger mechanism can record data every time the paint spray gun pulls the trigger and stops spraying paint. When the paint spray gun is separated from the connecting head, the metering trigger mechanism stops recording the data of the electronic scale, and the paint spray gun can be separated from the metering trigger mechanism, which is convenient for cleaning the paint spray gun. After reinstalling the paint spray gun, the amount of paint cleaned in the paint spray gun will not be recorded in the amount of paint sprayed by the metering trigger mechanism, which ultimately reduces the error between the amount of paint used for spraying recorded during the use of the electronic scale for spraying and the amount of paint actually used for spraying; 2. The automatic flow blocking mechanism of the present invention can automatically close the first liquid hole when the paint spray gun is separated from the connector, thereby reducing the probability of the paint liquid in the liquid storage device flowing out of the connector. The flow starting mechanism can control the working state of the automatic flow blocking mechanism through the relative movement between the paint spray gun and the connector when the paint spray gun is in contact with the connector, thereby facilitating the connection between the connector and the paint spray gun; 3. The blocking plate of the metering trigger mechanism in the present invention can block the muzzle of the paint spray gun under the action of the trigger block and the connecting air pipe when the paint spray gun is connected to the connector. When the trigger of the paint spray gun is pulled, the data storage device starts to record the data of the electronic scale through the change of the movement state of the blocking plate. When the paint spray gun stops pulling the trigger, the blocking plate can block the muzzle of the paint spray gun and stop recording the data of the electronic scale, so as to record the amount of paint sprayed by the paint spray gun in a single time. When the paint spray gun is separated from the connector, the data storage device disconnects the electrical connection with the electronic scale to realize the recording of the amount of paint sprayed during the painting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the external structure of an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of the internal structure of the connector and the flow-starting mechanism in the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the paint spray gun in the embodiment of the present application.

[0030] In the figure: 1. liquid storage device; 2. liquid spraying device; 21. connector; 211. first liquid hole; 22. paint spray gun; 221. second liquid hole; 3. weighing device; 31. electronic scale; 32. metering trigger mechanism; 321. blocking plate; 322. data storage device; 323. connecting air pipe; 324. trigger block; 33. moving mechanism; 331. supporting plate; 332. moving wheel; 333. moving armrest; 334. anti-skid pattern; 4. automatic flow blocking mechanism; 41. first sealing plate; 42. second sealing plate; 43. first trigger plate; 44. second trigger plate; 5. flow starting mechanism; 51. liquid flow tube; 52. first flow starting plate; 53. second flow starting plate; 6. reset mechanism; 7. reset button; 8. sealing ring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0032] The present application embodiment discloses an automatic metering system for a paint spraying electronic scale 31. Figure 1 and Figure 3 A paint spraying electronic scale 31 automatic metering system includes a liquid storage device 1, a liquid spraying device 2 and a weighing device 3.

[0033] The liquid storage device 1 is preferably a liquid storage tank. The liquid spraying device 2 includes a connector 21 and a paint spray gun 22. One end of the connector 21 is fixedly connected to the liquid storage device 1 and communicated with the inside of the liquid storage device 1. The other end of the connector 21 is detachably connected to the paint spray gun 22. The paint spray gun 22 is communicated with the inside of the liquid storage device 1 through the connector 21. The weighing device 3 includes a metering trigger mechanism 32 and an electronic scale 31. The metering trigger mechanism 32 connects the muzzle of the paint spray gun 22 and the connector 21. The electronic scale 31 is electrically connected to the metering trigger mechanism 32 through the connector 21. When the connector 21 is connected to the paint spray gun 22, the metering trigger mechanism 32 blocks the muzzle of the paint spray gun 22 and remains electrically connected to the electronic scale 31; when the connector 21 is separated from the paint spray gun 22, the metering trigger mechanism 32 is separated from the muzzle of the paint spray gun 22, and the metering trigger mechanism 32 is disconnected from the electronic scale 31.

[0034] When the paint spray gun 22 is used for spraying paint, the metering trigger mechanism 32 connected to the muzzle of the paint spray gun 22 starts to read the data of the electronic scale 31. When the paint spray gun 22 stops spraying paint, the metering trigger mechanism 32 stops reading the data of the electronic scale 31 and calculates the difference of the recorded data to obtain the amount of paint sprayed in a single time. After the paint spray gun 22 is separated from the connector 21, the electrical connection between the metering trigger mechanism 32 and the electronic scale 31 is disconnected, and the metering trigger mechanism 32 is separated from the muzzle of the paint spray gun 22, so that the paint spray gun 22 can clean the residual paint inside. After the paint spray gun 22 is connected to the connector 21 again, the metering trigger mechanism 32 restores the electrical connection with the electronic scale 31. When the paint spray gun 22 sprays paint for the next time, the metering trigger mechanism 32 reads the data of the electronic scale 31, so that the amount of paint liquid cleaned by the paint spray gun 22 is not recorded in the amount of paint used for spraying, thereby reducing the error between the amount of paint used for spraying recorded during the use of the electronic scale for spraying and the actual amount of paint used for spraying.

[0035] Reference Figure 1 and Figure 2 The connector 21 is provided with a first liquid hole 211 connected to the interior of the liquid storage device 1, and the hole wall of the first liquid hole 211 is connected with an automatic flow blocking mechanism 4, which can block the first liquid hole 211. The paint spray gun 22 is connected with a flow starter mechanism 5 on the side facing the connector 21, and the flow starter mechanism 5 can slide against the automatic flow blocking mechanism 4, and the flow starter mechanism 5 is used to open the automatic flow blocking mechanism 4 and connect the first liquid hole 211 and the paint spray gun 22.

[0036] When the paint spray gun 22 and the connector 21 are not connected, the automatic flow blocking mechanism 4 in the connector 21 blocks the first liquid through hole 211, reducing the probability of the paint liquid in the liquid storage device 1 flowing out of the connector 21. When the paint spray gun 22 is connected to the connector 21, the flow starting mechanism 5 contacts the automatic flow blocking mechanism 4, and then opens the automatic flow blocking mechanism 4, so that the connector 21 is connected to the paint spray gun 22, and the paint liquid in the liquid storage device 1 can flow from the first liquid through hole 211 into the paint spray gun 22.

[0037] Reference Figure 1 and Figure 2The automatic flow blocking mechanism 4 includes a first sealing plate 41 and a second sealing plate 42. One side of the first sealing plate 41 and the second sealing plate 42 are slidably abutted. The side of the first sealing plate 41 facing away from the second sealing plate 42 is slidably abutted against the inner wall of the first liquid hole 211, and the side of the second sealing plate 42 facing away from the first sealing plate 41 is slidably abutted against the inner wall of the first liquid hole 211. The first sealing plate 41 is provided with a first liquid flow groove (not marked in the drawings), and the second sealing plate 42 is provided with a second liquid flow groove (not marked in the drawings). The end of the first sealing plate 41 facing away from the second sealing plate 42 is connected to a first trigger plate 43, and a reset mechanism 6 is arranged between the first trigger plate 43 and the hole wall of the first liquid hole 211. The reset mechanism 6 is preferably a reset spring or a torsion spring. The end of the second sealing plate 42 facing away from the first sealing plate 41 is connected to a second trigger plate 44, and a reset mechanism 6 is also arranged between the second trigger plate 44 and the first liquid hole 211. One end of each of the first trigger plate 43 and the second trigger plate 44 is hinged to the hole wall of the first liquid hole 211. The first trigger plate 43 and the second trigger plate 44 are arranged obliquely from the direction of the paint spray gun 22 toward the liquid storage device 1 toward the center of the first liquid hole 211. When the first trigger plate 43 and the second trigger plate 44 rotate toward the center of the first liquid hole 211, the abutment area of ​​the first sealing plate 41 and the second sealing plate 42 increases. When the first trigger plate 43 and the second trigger plate 44 rotate toward the hole wall of the first liquid hole 211, the abutment area of ​​the first sealing plate 41 and the second sealing plate 42 decreases, and the first liquid flow groove and the second liquid flow groove are connected, so that the paint liquid in the liquid storage device 1 can flow out of the connector 21.

[0038] When the paint spray gun 22 is connected to the connector 21, the flow-starting mechanism 5 slides against the first trigger plate 43 and the second trigger plate 44, thereby driving the first trigger plate 43 and the second trigger plate 44 to rotate in a direction away from the center of the first liquid hole 211, so that the first sealing plate 41 and the second sealing plate 42 move in a direction away from the center of the first liquid hole 211, and the first liquid flow groove and the second liquid flow groove are connected due to the movement of the first sealing plate 41 and the second sealing plate 42, thereby making the first liquid hole 211 in a connected state, so that the paint liquid in the liquid storage device 1 flows into the paint spray gun 22. When the paint spray gun 22 is separated from the connector 21, the first trigger plate 43 and the second trigger plate 44 return to their original positions under the action of the reset mechanism 6, thereby driving the first sealing plate 41 and the second sealing plate 42 to return to their original positions, the first liquid flow groove and the second liquid flow groove are no longer connected, and the first liquid hole 211 is closed.

[0039] Reference Figure 2 and Figure 3A second liquid hole 221 is provided in the paint spray gun 22, and the end of the paint spray gun 22 away from the muzzle is connected to the flow-starting mechanism 5, which includes a liquid flow tube 51, a first flow-starting plate 52 and a second flow-starting plate 53. The liquid flow tube 51 is connected to the second liquid hole 221, and the first flow-starting plate 52 and the second flow-starting plate 53 are fixedly connected to the outer wall of the liquid flow tube 51 and are symmetrically arranged about the liquid flow tube 51.

[0040] When the paint spray gun 22 is connected to the connector 21, the first flow-opening plate 52 slides against the first trigger plate 43, driving the first trigger plate 43 to move away from the first liquid hole 211, and the second flow-opening plate 53 slides against the second trigger plate 44, driving the second trigger plate 44 to move away from the center of the first liquid hole 211, and finally connecting the first liquid hole 211. When the paint spray gun 22 is separated from the connector 21, the paint spray gun 22 is rotated to separate the first flow-opening plate 52 from the first trigger plate 43, the second flow-opening plate 53 from the second trigger plate 44, and then the paint spray gun 22 is separated from the connector 21.

[0041] Reference Figure 2 and Figure 3 A sealing ring 8 is sleeved on one end of the paint spray gun 22 facing the connecting head 21 .

[0042] The sealing ring 8 can enhance the sealing performance of the connection between the connector 21 and the paint spray gun 22 , and reduce the probability of paint liquid leaking from the connection between the connector 21 and the paint spray gun 22 .

[0043] Reference Figure 1 and Figure 3 The metering trigger mechanism 32 includes a blocking plate 321, a data storage device 322, a connecting air pipe 323 and a trigger stopper 324. One side of the blocking plate 321 is hinged to the muzzle of the paint spray gun 22, and a part of the blocking plate 321 blocks the muzzle of the paint spray gun 22. The other part of the blocking plate 321 is connected to one end of the connecting air pipe 323. The connecting air pipe 323 is a closed air pipe, and the other end of the connecting air pipe 323 is connected to the trigger stopper 324. The data storage device 322 is electrically connected to the blocking plate 321 and the trigger stopper 324. The trigger stopper 324 is slidably connected to the paint spray gun 22, one end of the trigger stopper 324 abuts the connector 21, and the other end of the trigger stopper 324 is connected to the end of the connecting air pipe 323 away from the blocking plate 321.

[0044] When the paint spray gun 22 is connected to the connector 21, the trigger block 324 abuts against the connector 21, and as the distance between the paint spray gun 22 and the connector 21 shortens, the trigger block 324 moves inside the paint spray gun 22, and the connecting air pipe 323 is squeezed, so that the pressure inside the connecting air pipe 323 increases, and the blocking plate 321 rotates and blocks the muzzle of the paint spray gun 22 under the action of the connecting air pipe 323, and the data storage device 322 is electrically connected to the electronic scale 31. When the paint spray gun 22 is spraying paint, pulling the trigger of the paint spray gun 22 can rotate the blocking plate 321, and the rotation of the blocking plate 321 gives an electrical signal to the data storage device 322, so that the data storage device 322 starts to record the data of the electronic scale 31. When the paint spray gun 22 is separated from the connector 21, the trigger block 324 slides away from the paint spray gun 22 under the action of the connecting air pipe 323, the air pressure in the connecting air pipe 323 decreases, the sealing plate 321 is separated from the muzzle of the paint spray gun 22, the electrical connection between the data storage device 322 and the electronic scale 31 is disconnected, and the data storage device 322 stops recording the data of the electronic scale 31.

[0045] Reference Figure 1 The paint spray gun 22 is connected with a reset button 7 , and the reset button 7 is electrically connected to the metering trigger mechanism 32 .

[0046] The reset button 7 can reset the metering trigger mechanism 32. The reset button 7 is arranged on the paint spray gun 22 to facilitate the reset of the metering trigger mechanism 32 under different paint spraying conditions.

[0047] Reference Figure 1 The bottom end of the electronic scale 31 is connected to a moving mechanism 33, which includes a support plate 331, a moving wheel 332, and a moving armrest 333. The top of the support plate 331 abuts against the bottom end of the electronic scale 31, the moving wheel 332 is connected to the bottom end of the support plate 331, the moving armrest 333 is hinged to one side of the support plate 331, and the moving armrest 333 is provided with an anti-slip pattern 334.

[0048] The support plate 331 at the bottom of the electronic scale 31 provides support for the electronic scale 31 , and the moving wheel 332 drives the electronic scale 31 and the liquid storage device 1 above the electronic scale 31 to move. The construction personnel can move the moving wheel 332 by pulling the moving handrail 333 .

[0049] The implementation principle of the automatic metering system of the electronic scale 31 for spraying paint in the embodiment of the present application is as follows: when spraying paint, the spray gun 22 starts recording the data of the electronic scale 31 by pulling the trigger, and stops recording the data of the electronic scale 31 when the spray gun 22 stops spraying paint. When the spray gun 22 is separated from the connector 21, the metering trigger mechanism 32 is disconnected from the electronic scale 31, stops recording the data of the electronic scale 31 and is separated from the muzzle of the spray gun 22, so as to facilitate the cleaning of the spray gun 22. When the spray gun 22 is reconnected to the connector 21, the metering trigger mechanism 32 is restored to the electrical connection with the electronic scale 31, and records the data of the electronic scale 31 again when the spray gun 22 pulls the trigger, and the paint cleaned in the spray gun 22 is not recorded in the amount of paint used for spraying, thereby reducing the error between the amount of paint used for spraying recorded during the use of the electronic scale for spraying and the amount of paint actually used for spraying.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic metering system for electronic scales for painting, characterized in that: include: Liquid storage device (1); A liquid spraying device (2), comprising a connecting head (21) and a paint spray gun (22), wherein one end of the connecting head (21) is fixedly connected to the liquid storage device (1) and communicates with the liquid storage device (1), and the other end of the connecting head (21) is detachably connected to the paint spray gun (22); The weighing device (3) comprises an electronic scale (31) and a metering trigger mechanism (32), wherein the electronic scale (31) is installed below the liquid storage device (1), the metering trigger mechanism (32) is connected to the muzzle of the paint spray gun (22), the metering trigger mechanism (32) is connected to the connector (21), and the metering trigger mechanism (32) is electrically connected to the electronic scale (31) via the connector (21). When the connector (21) is connected to the paint spray gun (22), the metering trigger mechanism (32) blocks the muzzle of the paint spray gun (22); when the connector (21) is separated from the paint spray gun (22), the metering trigger mechanism (32) is separated from the muzzle of the paint spray gun (22).

2. The automatic metering system for electronic scales for spray painting according to claim 1, characterized in that: The connecting head (21) is provided with a first liquid passage hole (211), an automatic flow blocking mechanism (4) is arranged in the first liquid passage hole (211), and a flow starting mechanism (5) is arranged on the side of the paint spray gun (22) connected to the connecting head (21), the flow starting mechanism (5) being used to start the automatic flow blocking mechanism (4).

3. The automatic metering system for electronic scales for spray painting according to claim 2, characterized in that: The automatic flow blocking mechanism (4) comprises a first sealing plate (41) and a second sealing plate (42), the first sealing plate (41) and the second sealing plate (42) are both arranged in the first liquid passage hole (211), one side of the first sealing plate (41) and the second sealing plate (42) are slidably abutted, the first sealing plate (41) and the second sealing plate (42) seal the first liquid passage hole (211), one end of the first sealing plate (41) facing away from the second sealing plate (42) is connected to a first trigger plate (43), and one end of the second sealing plate (42) facing away from the first sealing plate (41) is connected to a second trigger plate (44), and the first trigger plate (43) and the second trigger plate (44) are both controlled by a paint spray gun (22). The first trigger plate (43) and the second trigger plate (44) are arranged obliquely in the direction of the liquid storage device (1) and toward the center of the first liquid hole (211); the first trigger plate (43) and the second trigger plate (44) are both hingedly connected to the hole wall of the first liquid hole (211) on one side facing the paint spray gun (22); the flow-starting mechanism (5) is slidably abutted against the first trigger plate (43) and the second trigger plate (44); the first trigger plate (43) controls the movement of the first sealing plate (41); the second trigger plate (44) controls the movement of the second sealing plate (42); the first trigger plate (43) and the second trigger plate (44) are both connected to a reset mechanism (6); the first sealing plate (41) and the second sealing plate (42) move in opposite directions to communicate with the first liquid hole (211).

4. The automatic metering system for electronic scales for spray painting according to claim 3 is characterized by: A second liquid hole (221) is provided in the paint spray gun (22); the flow-starting mechanism (5) comprises a liquid flow tube (51), a first flow-starting plate (52) and a second flow-starting plate (53); the liquid flow tube (51) is connected to the second liquid hole (221); the first flow-starting plate (52) and the second flow-starting plate (53) are both fixedly connected to the outer wall of the liquid flow tube (51); and the first flow-starting plate (52) and the second flow-starting plate (53) are arranged opposite to each other.

5. The automatic metering system for electronic scales for spray painting according to claim 1, characterized in that: The metering trigger mechanism (32) comprises a blocking plate (321), a data storage device (322), a connecting air pipe (323) and a trigger block (324); one side of the blocking plate (321) is hingedly connected to the paint spray gun (22) and covers the muzzle of the paint spray gun (22); the trigger of the paint spray gun (22) is connected to the blocking plate (321); the blocking plate (321) is electrically connected to the data storage device (322); one side of the blocking plate (321) is hingedly connected to the paint spray gun (22) and connected to one end of the connecting air pipe (323); the other end of the connecting air pipe (323) is connected to the trigger block (324); the data storage device (322) is electrically connected to the trigger block (324); the trigger block (324) is slidably connected to one end of the paint spray gun (22) facing the connector (21); and the trigger block (324) abuts the connector (21).

6. The automatic metering system for electronic scales for spray painting according to claim 5, characterized in that: The metering trigger mechanism (32) is electrically connected to a reset button (7), and the reset button (7) is connected to the paint spray gun (22).

7. The automatic metering system for electronic scales for spray painting according to claim 1, characterized in that: One end of the paint spray gun (22) facing the connecting head (21) is connected to a sealing ring (8).

8. The automatic metering system for electronic scales for spray painting according to claim 1, characterized in that: The weighing device (3) further comprises a moving mechanism (33), the upper end surface of the electronic scale (31) abuts against the liquid storage device (1), and the lower end surface of the electronic scale (31) is connected to the moving mechanism (33).

9. The automatic metering system for electronic scales for spray painting according to claim 8, characterized in that: The moving mechanism (33) comprises a support plate (331), a moving wheel (332) and a moving armrest (333); the support plate (331) abuts against the bottom end of the electronic scale (31); the moving wheel (332) is connected to the bottom end of the support plate (331); and the moving armrest (333) is connected to one side of the support plate (331).

10. The automatic metering system for electronic scales for spray painting according to claim 9, characterized in that: The movable armrest (333) is provided with anti-slip grooves (334).

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