Accurate double-cylinder fluid discharging machine

Abstract

The utility model relates to the field of liquid discharging machines, in particular to an accurate double-cylinder fluid discharging machine. The liquid discharging machine comprises a base plate, two electrically-driven linear moving mechanisms, cylinder sleeves, ceramic cylinders and piston rods, the two electrically-driven linear moving mechanisms are installed on the base plate, the moving parts of the electrically-driven linear moving mechanisms are fixedly connected with the two piston rods, the ends of the piston rods are connected with pistons, the pistons are matched in the ceramic cylinders, the two ceramic cylinders are fixed in the two cylinder sleeves respectively, and the two ceramic cylinders are fixed in the two cylinder sleeves respectively. The two cylinder sleeves are both fixed to the base plate. The piston rod is accurately moved through the electric drive linear moving mechanism, the piston rod is matched with the piston to move in the ceramic cylinder, and suction and extrusion of fluid are achieved. The precision of fluid extrusion is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid outlet machine field especially is double cylinder fluid precision liquid outlet machine. BACKGROUND

[0002] Coating spraying involves various industries, and the surfaces of automobiles, 3C products, furniture, daily necessities and the like need to be sprayed with various characteristic coatings. These coatings are mostly corrosive and high-viscosity before curing, and the film thickness of coatings sprayed on the surfaces of automobiles and 3C products has very high standards, so the precision measurement and control of fluid volume are very high.

[0003] The fluid volume control measurement accuracy of existing fluid measurement and control equipment is low, especially for paint coatings, the coating film thickness cannot meet customer requirements. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is: in order to solve the technical problems described in the background art, the utility model provides a double cylinder fluid precision liquid outlet machine. The piston rod is accurately moved by the electric drive linear movement mechanism, and the movement of the piston rod in the ceramic cylinder realizes the suction and extrusion of the fluid. The application improves the accuracy of fluid extrusion.

[0005] The utility model adopts the technical scheme to solve the technical problems:

[0006] A double cylinder fluid precision liquid outlet machine, including base plate, electric drive linear movement mechanism, cylinder sleeve, ceramic cylinder, piston rod, two electric drive linear movement mechanisms are installed on the base plate, the moving part of the electric drive linear movement mechanism is fixedly connected with two piston rods, the piston rod end is connected with the piston, the piston is matched in the ceramic cylinder, two ceramic cylinders are fixed in two cylinder sleeves respectively, and the two cylinder sleeves are fixed on the base plate.

[0007] Specifically, the electric drive linear movement mechanism is a linear module, the linear module includes a motor, a lead screw, a sliding seat, a cylinder body and a nut, the output shaft of the motor is connected to the lead screw, the lead screw is rotatably connected in the cylinder body, the sliding seat is slidably connected to the cylinder body, the sliding seat is fixed to the tail end of the piston rod, and the nut is threadedly connected to the lead screw.

[0008] Specifically, the electric drive linear movement mechanism includes two groups of linear modules, and the sliding seats of the two linear modules are fixed to the two piston rods respectively.

[0009] Specifically, the output shaft of the motor is connected in a speed reducer, and the output shaft of the speed reducer is connected to the lead screw.

[0010] Specifically, the cylinder sleeve end and the ceramic cylinder are fixedly connected to the bottom of the counterbore valve seat, the counterbore valve seat is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated with the ceramic cylinder.

[0011] Specifically, the liquid inlet of the counterbore valve seat is connected to the connecting shaft of the mixing block through a liquid inlet pipeline.

[0012] Specifically, the mixing block connecting shaft is a tee joint.

[0013] Specifically, a pressure sensor is installed in the countersunk valve seat.

[0014] Specifically, a sealing ring is sleeved on the piston.

[0015] Specifically, a liquid level sensor is provided on the ceramic cylinder.

[0016] The beneficial effects of the present invention are as follows: the present invention provides a dual-cylinder fluid precision liquid dispensing machine. By precisely moving the piston rod through an electrically driven linear motion mechanism, the piston rod cooperates with the movement of the piston within the ceramic cylinder to achieve fluid suction and extrusion. This application improves the accuracy of fluid extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a structural diagram of the ceramic cylinder of the utility model;

[0020] In the figure, 1. Base plate, 2. Electric drive linear motion mechanism, 3. Cylinder sleeve, 4. Ceramic cylinder, 5. Piston rod, 6.

[0021] Hole valve seat, 7. Mixing block connecting shaft, 21. Motor, 22. Screw, 23. Slide, 24. Cylinder body. DETAILED DESCRIPTION

[0022] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0023] Figure 1 It is a structural diagram of the utility model; Figure 2 It is a structural schematic diagram of the ceramic cylinder of the present utility model.

[0024] Combined with attachment Figure 1 and attached Figure 2As shown, a double-cylinder fluid precision liquid outlet machine includes a base plate 1, an electric drive linear movement mechanism 2, a cylinder sleeve 3, a ceramic cylinder 4, and a piston rod 5. The base plate 1 is provided with two electric drive linear movement mechanisms 2. The moving part of the electric drive linear movement mechanism 2 is fixedly connected with two piston rods 5. The piston rod 5 is connected with a piston. The piston is fitted in the ceramic cylinder 4. The two ceramic cylinders 4 are fixed in the two cylinder sleeves 3 respectively. The two cylinder sleeves 3 are fixed on the base plate 1.

[0025] The electric drive linear movement mechanism 2 is a linear module. The linear module includes a motor 21, a screw rod 22, a sliding seat 23, a cylinder body 24, and a nut. The output shaft of the motor 21 is connected with the screw rod 22. The screw rod 22 is rotatably connected in the cylinder body 24. The sliding seat 23 is slidingly connected with the cylinder body 24. The sliding seat 23 is fixed at the tail end of the piston rod 5. The nut is threadedly connected with the screw rod 22. The nut is connected with the sliding seat 23. The motor 21 is electrically connected with a PLC.

[0026] The motor 21 drives the screw rod 22 to rotate. The nut on the screw rod 22 moves along the rod body of the screw rod 22. The nut moves linearly along the cylinder body 24 with the sliding seat 23. The sliding seat 23 drives the piston rod 5 and the piston to move in the ceramic cylinder 4.

[0027] The electric drive linear movement mechanism 2 includes two groups of linear modules. The sliding seats 23 of the two linear modules are fixed on the two piston rods 5 respectively.

[0028] The output shaft of the motor 21 is connected in a speed reducer. The output shaft of the speed reducer is connected with the screw rod 22. The speed reducer can adjust the rotating speed of the motor 21.

[0029] The cylinder sleeve 3 and the ceramic cylinder 4 are fixedly connected with a counterbore valve seat 6. The counterbore valve seat 6 is provided with an inlet and an outlet. The inlet and the outlet are communicated with the ceramic cylinder 4.

[0030] The inlet of the counterbore valve seat 6 is communicated with a mixing block connecting shaft 7 through an inlet pipeline. The mixing block connecting shaft 7 is connected with a fluid source.

[0031] The mixing block connecting shaft 7 is a three-way joint.

[0032] A pressure sensor is installed in the counterbore valve seat 6. The pressure sensor can transmit the fluid pressure information in the ceramic cylinder 4 to the PLC. When the pressure exceeds a preset value, the PLC will start an alarm system to avoid damage due to excessive pressure in the ceramic cylinder 4.

[0033] A sealing ring is sleeved on the piston. The ceramic cylinder 4 and the piston are made of ceramic. The ceramic has the advantages of high hardness and wear resistance, which can reduce the wear and deformation of the piston and the ceramic cylinder 4, and improve the accuracy of fluid metering and control.

[0034] The ceramic cylinder 4 is provided with a liquid level sensor. The liquid level sensor transmits signals to the PLC, and through detecting the fluid level, the volume of the fluid in the ceramic cylinder 4 is accurately controlled.

[0035] The working mode of the present application is as follows: when the fluid is to be sucked in, the motor 21 of the electric drive linear moving mechanism 2 is started to drive the piston rod 5 and the piston to move downwards, and the fluid is sucked into the ceramic cylinder 4 through the mixing block connecting shaft 7, the liquid inlet pipe and the liquid inlet of the counterbore valve seat 6 by the low pressure in the ceramic cylinder 4. Then the electric drive linear moving mechanism 2 accurately controls the piston rod 5 and the piston to move upwards, and the fluid in the ceramic cylinder 4 is stably pushed out of the cylinder, and the fluid with the preset flow rate is delivered to the terminal equipment at the preset hydraulic pressure through the liquid outlet pipe.

[0036] Through the above description, the related personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A double-cylinder fluid precision liquid output machine, characterized in that, The utility model provides a kind of electric linear motion mechanism, including base plate (1), electric linear motion mechanism (2), cylinder sleeve (3), ceramic cylinder (4), piston rod (5), two electric linear motion mechanisms (2) are installed on the base plate (1), and the moving part of electric linear motion mechanism (2) is fixedly connected with two piston rods (5), and piston rod (5) end is connected with piston, and piston is fitted in ceramic cylinder (4), two ceramic cylinders (4) are fixed in two cylinder sleeves (3) respectively, and two cylinder sleeves (3) are fixed on base plate (1).

2. The dual cylinder fluid precision liquid dispenser of claim 1, wherein: The electric linear motion mechanism (2) is a linear module, which includes a motor (21), a lead screw (22), a sliding seat (23), a cylinder body (24) and a nut.

3. The dual cylinder fluid precision liquid dispenser of claim 2, wherein: The electric linear motion mechanism (2) includes two groups of linear modules, and the sliding seats (23) of the two linear modules are fixed on the two piston rods (5) respectively.

4. The dual cylinder fluid precision liquid dispenser of claim 2, wherein: The output shaft of the motor (21) is connected in a speed reducer, and the output shaft of the speed reducer is connected on the lead screw (22).

5. The dual cylinder fluid precision liquid dispenser of claim 1, wherein: The cylinder sleeve (3) end and ceramic cylinder (4) are fixedly connected at the bottom of the counterbore valve seat (6), and the counterbore valve seat (6) is provided with a liquid inlet and a liquid outlet, which are communicated with the ceramic cylinder (4).

6. The dual cylinder fluid precision liquid dispenser of claim 5, wherein: The liquid inlet of the counterbore valve seat (6) is communicated with the mixing block connecting shaft (7) through a liquid inlet pipeline.

7. The dual cylinder fluid precision liquid dispenser of claim 6, wherein: The mixing block connecting shaft (7) is a tee joint.

8. The dual cylinder fluid precision liquid dispenser of claim 5, wherein: A pressure sensor is installed in the counterbore valve seat (6).

9. The dual cylinder fluid fractionating machine of claim 1, wherein: A sealing ring is sleeved on the piston.

10. The dual cylinder fluid fractionating machine of claim 1, wherein: A liquid level sensor is arranged on the ceramic cylinder (4).

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