Quantitative distribution pouring system capable of controlling material mixing and pressure regulation through servo drive

Abstract

The utility model provides a servo drive controlled material mixing and pressure regulating quantitative distribution pouring system. The system comprises a plurality of material injection assemblies which are arranged in parallel, and each material injection assembly comprises a material injection servo mechanism, a plunger pump and a material mixer which are connected in sequence. A single-component material is driven by the injection servo mechanism to enter the blender from the plunger pump through the one-way valve to be mixed to form a mixture; the device further comprises a discharging assembly, the discharging assembly comprises a discharging servo mechanism and a plurality of quantitative cylinders arranged in parallel, each quantitative cylinder is provided with a discharging port and an exhaust valve, and a plunger of each quantitative cylinder is connected with the discharging servo mechanism. The device further comprises a pipeline assembly connected with the material mixer and the quantitative cylinders, the material injection assembly and the pipeline assembly are discharged under the action of the material injection servo mechanism, the discharging servo mechanism and the exhaust valve, residual gas is discharged, and it is guaranteed that the discharging amount of all the quantitative cylinders is uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of pouring equipment, in particular to a servo-driven controlled mixing pressure regulating quantitative distribution pouring system. Background Art

[0002] In the production of resin and other materials, single-component materials are first mixed to form a mixture, and then the mixture is quantitatively distributed and poured. In conventional technology, a plunger metering cylinder is a commonly used pouring structure, but there will be residual gas in the cylinder of the plunger metering cylinder at the beginning. When multiple plunger metering cylinders are used in parallel to quantitatively distribute the mixture, the amount of residual gas in each plunger metering cylinder is different, which leads to uneven discharge of each plunger metering cylinder. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to propose a servo-driven controlled mixing pressure regulating quantitative distribution pouring system to solve the problems mentioned in the above background technology section.

[0004] The utility model is realized by the following technical solutions:

[0005] A servo-driven controlled mixing, pressure-regulating and quantitative distribution pouring system comprises a plurality of injection components arranged in parallel, wherein the injection components comprise an injection servo mechanism, a plunger pump and a mixer connected in sequence, wherein a single-component material is driven by the injection servo mechanism and is driven by the plunger pump to enter the mixer through a one-way valve for mixing to form a mixture; further comprising a discharge component, wherein the discharge component comprises a discharge servo mechanism and a plurality of quantitative cylinders arranged in parallel, wherein the quantitative cylinder is provided with a discharge port and an exhaust valve, and the plunger of the quantitative cylinder is connected to the discharge servo mechanism; further comprising a pipeline component connecting the mixer and the quantitative cylinder.

[0006] Furthermore, the injection assembly also includes an injection pipeline connecting the plunger pump and the mixer, and the injection pipeline is provided with a one-way valve.

[0007] Furthermore, the injection pipeline is provided with a pressure sensor.

[0008] Furthermore, each of the metering cylinders is driven by the same discharge servo mechanism to discharge the mixed material from a discharge port.

[0009] Furthermore, a back pressure valve is provided in the pipeline before the feeding of each metering cylinder.

[0010] Furthermore, the pipeline assembly includes a connecting pipeline and a diversion pipeline, one end of the connecting pipeline is connected to the mixer, the other end of the connecting pipeline is connected to the diversion pipeline, the other end of the diversion pipeline is connected to each of the back pressure valves respectively, and the path length and angle of each branch connected to the diversion pipeline and the back pressure valve are equal.

[0011] Furthermore, the connecting pipeline is provided with a constant temperature heating device.

[0012] Furthermore, the connecting pipeline is made of hard pipe material.

[0013] Furthermore, it also includes a diverter plate, and the diverter pipeline is formed inside the diverter plate.

[0014] The beneficial effects of the utility model are as follows: a servo-driven controlled mixing pressure regulating quantitative distribution pouring system comprises a plurality of injection components arranged in parallel, wherein the injection components comprise an injection servo mechanism, a plunger pump and a mixer connected in sequence, wherein the single-component material is driven by the injection servo mechanism to enter the mixer by the plunger pump to be mixed to form a mixture; further comprising a discharging component, wherein the discharging component comprises a discharging servo mechanism and a plurality of quantitative cylinders arranged in parallel, wherein the quantitative cylinder is provided with a discharging port and an exhaust valve, and the plunger of the quantitative cylinder is connected to the discharging servo mechanism; further comprising a pipeline component connecting the mixer and the quantitative cylinder; when in use, firstly, the pre-treated single-component materials are placed in the mixing tank; The single-component materials are put into the plunger pump; then, the single-component materials are put from the plunger pump into the mixer through the injection servo mechanism for mixing to form a mixture; after that, the mixed mixture enters the metering cylinder through the pipeline assembly. In the process of the mixture entering the metering cylinder, the plunger of the metering cylinder slowly lifts the discharge servo mechanism. At this time, the exhaust valve opens, so that the gas in the pipeline assembly and the injection assembly is discharged through the exhaust valve. Finally, the exhaust valve and the injection servo mechanism are closed, and the discharge port is switched from a closed state to an open state. The discharge servo mechanism presses down the plunger of the metering cylinder to discharge the mixture from the discharge port, thereby achieving the discharge of residual gas and ensuring that the discharge amount of each metering cylinder is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a process layout diagram of a servo-driven controlled mixing, pressure-regulating, quantitative distribution and pouring system of the utility model.

[0016] The above drawings include the following reference numerals:

[0017] 1. Injection assembly; 11. Injection servo mechanism; 12. Plunger pump; 13. Mixer; 14. Injection pipeline; 15. Check valve; 16. Pressure sensor; 2. Discharge assembly; 21. Discharge servo mechanism; 22. Dosing cylinder; 221. Discharge port; 222. Exhaust valve; 23. Back pressure valve; 24. Guide column; 3. Pipeline assembly; 31. Connecting pipeline; 32. Diverter pipeline. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0019] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0020] Reference Figure 1 As shown, a servo-driven controlled mixing, pressure-regulating and quantitative distribution pouring system comprises a plurality of injection components 1 arranged in parallel, the injection component 1 comprises an injection servo mechanism 11, a plunger pump 12 and a mixer 13 connected in sequence, a single-component material is driven by the injection servo mechanism 11 and the plunger pump 12 to enter the mixer 13 for mixing to form a mixture; it also comprises a discharge component 2, the discharge component 2 comprises a discharge servo mechanism 21, a plurality of quantitative cylinders 22 arranged in parallel, the quantitative cylinder 22 is provided with a discharge port 221 and an exhaust valve 222, the plunger of the quantitative cylinder 22 is connected to the discharge servo mechanism 21; it also comprises a pipeline component 3 connecting the mixer 13 and the quantitative cylinder 22.

[0021] Among them, the mixer 13 is preferably a static mixer 13, and the discharging component 2 also includes a guide column 24, and the discharging servo mechanism 21 is connected to the plunger of the metering cylinder 22 through the guide column 24, and the motion trajectory of the discharging servo mechanism 21 is guided by the guide column 24.

[0022] When in use, first, each pre-treated single-component material is put into the plunger pump 12. Then, the single-component material is put from the plunger pump 12 into the mixer 13 through the injection servo mechanism 11 for mixing and forming a mixture. Afterwards, the mixed mixture enters the metering cylinder 22 through the pipeline assembly 3. In the process of the mixture entering the metering cylinder 22, the plunger of the metering cylinder 22 slowly lifts the discharge servo mechanism 21. At this time, the exhaust valve 222 is opened, so that the gas in the pipeline assembly 3 and the injection assembly 1 is discharged through the exhaust valve 222. Finally, the exhaust valve 222 and the injection servo mechanism 1 are closed, and the discharge port 221 is switched from a closed state to an open state. The discharge servo mechanism 21 presses down the plunger of the metering cylinder 22 to discharge the mixture from the discharge port 221, thereby achieving the discharge of residual gas and ensuring that the discharge amount of each metering cylinder 22 is uniform.

[0023] Each metering cylinder 22 is driven by the same discharge servo mechanism 21 to discharge the mixed material from the discharge port 221. This ensures that the plunger pressure driving the metering cylinder 22 is the same, thereby further ensuring that the discharge amount of each metering cylinder 22 is uniform.

[0024] The injection assembly 1 also includes an injection pipeline 14 connecting the plunger pump 12 and the mixer 13, and the injection pipeline 14 is provided with a one-way valve 15. A back pressure valve 23 is provided in the pipeline before the feeding of each metering cylinder 22. The one-way flow characteristics of the one-way valve 15 and the back pressure valve 23 are used to prevent the mixed material from flowing back.

[0025] The injection pipeline 14 is provided with a pressure sensor 16. The pressure sensor 16 is used to monitor the discharge pressure of the single-component material, and then each branch pipeline 32 is pressurized to the same pressure through the back pressure valve 23, and the mixed material in the connecting pipeline 31 is extruded with the same pressure to ensure equal and stable flow.

[0026] The pipeline assembly 3 includes a connecting pipeline 31 and a shunt pipeline 32. One end of the connecting pipeline 31 is connected to the mixer 13, and the other end of the connecting pipeline 31 is connected to the shunt pipeline 32. The other end of the shunt pipeline 32 is connected to each back pressure valve 23 respectively. The path length and angle of each branch connecting the shunt pipeline 32 and the back pressure valve 23 are equal. The mixed material comes to the shunt pipeline 32 through the connecting pipeline 31, and the mixed material is initially evenly distributed in the flow channels of each branch of the shunt pipeline 32 with equal path length and equal turning angle, so as to further ensure the uniform discharge of each metering cylinder 22.

[0027] The connecting pipe 31 is provided with a constant temperature heating device, and the connecting pipe 31 is made of a hard pipe material. This prevents the temperature, pressure and gas from causing the mixture to expand and contract, resulting in excessive weight errors in the quantitative distribution of the poured material, and reduces environmental errors through a constant temperature environment. Similarly, the injection pipe 14 is made of a hard pipe material such as metal or plastic.

[0028] The utility model also includes a diverter plate, and a diverter pipeline 32 is formed inside the diverter plate. The diverter pipeline 32 is formed by cutting the diverter plate, so as to ensure that the path or angle of the diverter pipeline 32 will not be offset during use.

[0029] The utility model provides a servo-driven controlled mixing pressure regulating quantitative distribution pouring system, which has the following advantages:

[0030] 1. Use one-way flow of the one-way valve 15, and use the pressure sensor 16 and the back pressure valve 23 to adjust the material preparation pressure to avoid material backflow and monitor the discharge pressure of the single-component material. After each flow channel is prepared to the same pressure through the back pressure valve 23, the mixed material in the pipeline component 3 is extruded with the same pressure to ensure equal and stable flow.

[0031] 2. Control the constant temperature and pressure environment to reduce environmental errors, and set an exhaust structure in the cylinder of the metering cylinder 22 to avoid excessive errors in the weight of the material for quantitative distribution and pouring caused by expansion and contraction of the mixed material due to temperature, pressure and gas.

[0032] 3. Collect the torque values ​​of each injection servo mechanism 11 and the discharge servo mechanism 21, calculate through each change relationship, ensure the consistency of reciprocating motion, ensure the consistency of the discharge weight of the mixed material from each discharge port 221 and the high precision of servo control from the torque, and realize automatic correction control through its feedback signal.

[0033] 4. The discharging servo mechanism 21 drives the plunger of the metering cylinder 22 to calculate the torque and the pressure sensor 16 to measure the pressure to calculate the relationship between the two. The two signals of torque and pressure feedback are cross-verified to ensure that the mixed material is evenly distributed and the pouring amount is equal.

[0034] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A servo-driven controlled mixing pressure regulating quantitative distribution pouring system, characterized in that: The invention comprises a plurality of injection assemblies (1) arranged in parallel, wherein the injection assemblies (1) comprise an injection servo mechanism (11), a plunger pump (12) and a mixer (13) connected in sequence, wherein a single component material is driven by the injection servo mechanism (11) and the plunger pump (12) enters the mixer (13) through a one-way valve (15) to be mixed to form a mixed material; The device also comprises a discharging assembly (2), wherein the discharging assembly (2) comprises a discharging servo mechanism (21), and a plurality of quantitative cylinders (22) arranged in parallel, wherein the quantitative cylinders (22) are provided with a discharging port (221) and an exhaust valve (222), and a plunger of the quantitative cylinder (22) is connected to the discharging servo mechanism (21); It also includes a pipeline assembly (3) connecting the mixer (13) and the metering cylinder (22).

2. A servo-driven controlled mixing, pressure-regulating and quantitative distribution pouring system according to claim 1, characterized in that: The injection assembly (1) further comprises an injection pipeline (14) connecting the plunger pump (12) and the mixer (13), and the injection pipeline (14) is provided with a one-way valve (15).

3. A servo-driven controlled mixing, pressure-regulating and quantitative distribution pouring system according to claim 2, characterized in that: The injection pipeline (14) is provided with a pressure sensor (16).

4. A servo-driven controlled mixing, pressure-regulating and quantitative distribution pouring system according to claim 1, characterized in that: Each metering cylinder (22) is driven by the same discharge servo mechanism (21) to discharge the mixed material from a discharge port (221).

5. A servo-driven controlled mixing, pressure-regulating and quantitative distribution pouring system according to any one of claims 1 to 4, characterized in that: A back pressure valve (23) is provided in the pipeline before the feeding of each metering cylinder (22).

6. A servo-driven controlled mixing, pressure-regulating, quantitative distribution and pouring system according to claim 5, characterized in that: The pipeline assembly (3) comprises a connecting pipeline (31) and a branching pipeline (32), one end of the connecting pipeline (31) is connected to the mixer (13), the other end of the connecting pipeline (31) is connected to the branching pipeline (32), the other end of the branching pipeline (32) is respectively connected to each of the back pressure valves (23), and the path lengths and angles of each branch connecting the branching pipeline (32) and the back pressure valve (23) are equal.

7. A servo-driven controlled mixing, pressure-regulating and quantitative distribution pouring system according to claim 6, characterized in that: The connecting pipeline (31) is provided with a constant temperature heating device.

8. The servo-driven controlled mixing, pressure-regulating, quantitative distribution and pouring system according to claim 6 is characterized by: The connecting pipeline (31) is made of hard pipe material.

9. A servo-driven controlled mixing, pressure-regulating, quantitative distribution and pouring system according to claim 6, characterized in that: It also includes a diverter plate, the diverter pipeline (32) is formed inside the diverter plate.

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