An integrated cutting fluid automatic dispensing device

Abstract

The utility model provides an integrated automatic liquid dispensing device for cutting fluid, including a centralized water tank, a proportioning mechanism, a concentration meter, and a liquid supply pump. A return liquid pipe connected to all machine tools on the production line is provided on the outside of the centralized water tank. A secondary filter module is provided inside the centralized water tank. The return liquid of the machine tool flows into the clean liquid area of ​​the centralized water tank after being filtered by the secondary filter module. The proportioning mechanism is connected to the clean liquid area of ​​the centralized water tank and can automatically proportion the concentration of the cutting fluid in the centralized water tank. The liquid outlet pipe of the centralized water tank is connected to the cutting fluid spray pipe of the machine tool, and a plurality of liquid supply pumps arranged in parallel are provided between the liquid outlet pipe of the centralized water tank and the cutting fluid spray pipe. The concentration meter is provided on the liquid outlet pipe of the centralized water tank and is located downstream of the liquid supply pump. The utility model adopts a centralized water tank to integrate the water tanks of the machine tools of a production line, integrates filtration, proportioning, and distribution, and is fully automated, saving labor and having high proportioning accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting fluid proportioning, in particular to an integrated cutting fluid automatic proportioning device. Background Art

[0002] A large amount of heat is generated during metal machining, so it is necessary to spray cutting fluid to cool down. Machining requires high concentration accuracy of the cutting fluid. As the cutting fluid is consumed, the concentration of the cutting fluid will deviate.

[0003] The existing automatic proportioning device, for multiple machine tools in a production line, is generally equipped with a cutting fluid tank and a proportioning pump for each machine tool. The proportioning pump is set with several fixed concentration value gears for selection. When adding liquid, a gear is selected for replenishing liquid, and then the liquid is replenished into the machine tool's own water tank and mixed with the original cutting fluid in the water tank. As the cutting fluid is used, the concentration of the cutting fluid mixed in the water tank deviates due to factors such as evaporation of water in the self-contained water tank, water carried away by processing, and consumption of chemical components of the cutting fluid. Its concentration is not the required target concentration, and it is necessary to manually detect the cutting fluid concentration and manually add stock liquid or water to correct the concentration. The final proportioning concentration has a large error with the set concentration, which is troublesome to operate and requires additional personnel. Utility Model Content

[0004] The utility model aims to provide an integrated cutting fluid automatic dispensing device to overcome the deficiencies in the prior art.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an integrated automatic cutting fluid dispensing device, including a centralized water tank, a proportioning mechanism, a concentration meter, and a liquid supply pump. A return liquid pipe connected to all machine tools on the production line is provided on the outside of the centralized water tank. A secondary filter module is provided in the centralized water tank. The return liquid from the machine tools flows into the centralized water tank through the return liquid pipe and then flows into the clean liquid area at the lower end of the centralized water tank after being filtered by the secondary filter module. The proportioning mechanism is connected to the clean liquid area of ​​the centralized water tank and can automatically proportion the cutting fluid concentration in the centralized water tank according to the concentration value detected by the concentration meter. The liquid outlet pipe of the centralized water tank is connected to the cutting fluid spray pipe of the machine tool on the production line, and a plurality of liquid supply pumps arranged in parallel are provided between the liquid outlet pipe of the centralized water tank and the cutting fluid spray pipe, one of the plurality of liquid supply pumps is a standby liquid supply pump, and the concentration meter is arranged on the liquid outlet pipe of the centralized water tank, downstream of the liquid supply pump.

[0006] Furthermore, the above-mentioned integrated automatic cutting fluid dispensing device also includes a control system, and the control system includes a display screen, on which a target concentration value and a target water tank capacity can be set, and concentration ratio parameters can also be displayed. The parameters include the total amount of RO water, the total amount of stock solution, the current concentration, the current water tank capacity, the target concentration, the target water tank capacity, etc.

[0007] Furthermore, in the above-mentioned integrated cutting fluid automatic dispensing device, the proportioning mechanism includes a liquid replenishing component, a water replenishing component and a liquid level sensor 1. The liquid level sensor 1 is arranged in the centralized water tank, and is used to detect the liquid level in the clean liquid area in the centralized water tank. The liquid replenishing component is used to replenish the original liquid, and the water replenishing component is used to replenish RO water. The control system calculates the RO water capacity and / or the original liquid capacity to be replenished according to the concentration value detected by the concentration meter, the liquid level value detected by the liquid level sensor 1, the target concentration, and the target water tank capacity, and controls the liquid replenishing component and the water replenishing component to replenish the original liquid and / or RO water to the centralized water tank.

[0008] Furthermore, in the above-mentioned integrated cutting fluid automatic dispensing device, the fluid replenishing component is arranged outside the centralized water tank, and includes a raw liquid barrel, an oil barrel pump, and a liquid storage tank connected in sequence. The liquid storage tank is connected to the centralized water tank through the raw liquid pump. A second liquid level sensor is provided in the liquid storage tank. The second liquid level sensor is used to monitor the liquid level in the liquid storage tank and is electrically connected to the oil barrel pump; a third liquid level sensor is provided in the raw liquid barrel. The third liquid level sensor is used to monitor the liquid level in the raw liquid barrel.

[0009] Furthermore, in the above-mentioned integrated automatic cutting fluid dispensing device, the raw liquid pump includes a solenoid valve 1, a one-way valve 1, a Venturi valve, a solenoid valve 2, and a solenoid valve 3. The Venturi valve is provided with three connecting ends, wherein the first connecting end is connected to the liquid storage tank, the second connecting end is connected to the liquid outlet pipe of the centralized water tank, and the third connecting end is connected to the clean liquid area of ​​the centralized water tank. The solenoid valve 1 and the one-way valve 1 are sequentially arranged on the connecting pipeline between the first connecting end and the liquid storage tank, the solenoid valve 2 is arranged on the branch pipeline connected to the liquid outlet pipe pipeline at the second connecting end, and the solenoid valve 3 is arranged on the liquid replenishment pipeline connected to the centralized water tank at the third connecting end.

[0010] Furthermore, in the above-mentioned integrated cutting fluid automatic dispensing device, the concentration meter is arranged on a branch pipeline connected to the liquid outlet pipeline, and its liquid outlet is connected to the centralized water tank through a liquid replenishment pipeline, and a control valve is respectively provided at both ends of the concentration meter.

[0011] Furthermore, in the above-mentioned integrated cutting fluid automatic dispensing device, the water replenishment component is arranged outside the centralized water tank, including a one-way valve 2, a water meter, a flow meter and a solenoid valve 4 which are arranged in sequence on the water replenishment pipeline, and the water replenishment pipeline is connected to the RO water pipe.

[0012] Furthermore, in the above-mentioned integrated cutting fluid automatic dispensing device, the secondary filtration module includes a scraper-type filtration mechanism and a negative pressure filtration mechanism which are arranged in sequence, the scraper-type filtration mechanism is used for coarse filtration of machine tool return fluid, and the negative pressure filtration mechanism is used for fine filtration of machine tool return fluid.

[0013] Furthermore, in the above-mentioned integrated automatic cutting fluid dispensing device, the centralized water tank includes a box body and a plurality of cover plates arranged on the top of the box body, the plurality of cover plates are arranged in an array and are detachably connected to the box body, and the cover plates are provided with handles.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the utility model adopts a centralized water tank to integrate the water tanks of the machine tools on the production line, integrates filtration, proportioning, and distribution, has high proportioning accuracy, fully automated operation, a high degree of automation, improves equipment utilization, and saves labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is the principle diagram of the automatic cutting fluid dispensing device integrated in the utility model;

[0017] Figure 2 It is a structural schematic diagram of the automatic cutting fluid dispensing device integrated in the utility model;

[0018] Figure 3 It is a schematic diagram of the raw liquid pump of the automatic cutting fluid dispensing device integrated in the utility model;

[0019] In the figure: 1, centralized water tank; 11, liquid return pipe; 12, liquid outlet pipe; 13, cover plate;

[0020] 2. Concentration meter; 21. Control valve;

[0021] 3. Liquid supply pump;

[0022] 4. Liquid replenishment assembly; 41. Liquid barrel; 42. Oil barrel pump; 43. Liquid storage tank; 44. Liquid pump; 441. Solenoid valve 1; 442. One-way valve 1; 443. Venturi valve; 444. Solenoid valve 2; 445. Solenoid valve 3; 45. Liquid level sensor 2; 46. Liquid level sensor 3; 47. Branch pipeline; 48. Liquid replenishment pipeline;

[0023] 5. Water replenishment assembly; 51. One-way valve 2; 52. Water meter; 53. Flow meter; 54. Solenoid valve 4;

[0024] 6. Liquid level sensor 1; 7. Machine tool. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0026] Example 1

[0027] like Figure 1-3 As shown, an integrated automatic cutting fluid dispensing device includes a centralized water tank 1, a proportioning mechanism, a concentration meter 2, and a liquid supply pump 3. The centralized water tank 1 is provided with a return pipe 11 connected to all machine tools 7 on the production line on the outside, and a secondary filtering module (not shown) is provided in the centralized water tank 1. The machine tool return liquid flows into the centralized water tank 1 through the return pipe 11 and then flows into the clean liquid area at the lower end of the centralized water tank 1 after being filtered by the secondary filtering module. The proportioning mechanism is connected to the clean liquid area of ​​the centralized water tank 1 and can automatically proportion the liquid in the centralized water tank 1 according to the concentration value detected by the concentration meter 2. Cutting fluid concentration, the liquid outlet pipe 12 of the centralized water tank 1 is connected to the cutting fluid spray pipe of the machine tool 7 on the production line, and a plurality of liquid supply pumps 3 arranged in parallel are arranged between the liquid outlet pipe 12 of the centralized water tank 1 and the cutting fluid spray pipe, one of the plurality of liquid supply pumps 3 is a spare liquid supply pump, and the number of liquid supply pumps 3 is not less than two, which can be flexibly set according to the cutting fluid flow required by the machine tool 7, and a spare liquid supply pump is set to ensure the normal operation of the equipment, and the concentration meter 2 is arranged on the liquid outlet pipe 12 of the centralized water tank 1, located downstream of the liquid supply pump 3. The centralized water tank of the utility model is used to proportion cutting fluid for machine tools of one or more production lines, and the number of matching machine tools is generally 50-100.

[0028] The above-mentioned integrated automatic cutting fluid dispensing device also includes a control system, and the control system includes a display screen, on which the target concentration value and the target water tank capacity can be set. The target concentration value and the target water tank capacity can be set according to the process requirements, the number of machine tools 7, etc., which has good flexibility and improves the equipment utilization rate, and can also display the concentration ratio parameters. The parameters include the total RO water consumption, the total stock liquid consumption, the current concentration, the current water tank capacity, the target concentration, the target water tank capacity, etc. The visual operation interface is easy to operate, and the system is fully automated, with a high degree of automation and labor saving.

[0029] like Figure 1 , 2As shown, the proportioning mechanism includes a liquid replenishing component 4, a water replenishing component 5 and a liquid level sensor 6. The liquid level sensor 6 is arranged in the centralized water tank 1, and is used to detect the liquid level in the clean liquid area of ​​the centralized water tank 1. The liquid replenishing component 4 is used to replenish the original liquid, and the water replenishing component 5 is used to replenish RO water. The control system calculates the RO water capacity and / or the original liquid capacity to be replenished according to the concentration value detected by the concentration meter 2, the liquid level value detected by the liquid level sensor 6, the target concentration, and the target water tank capacity, and controls the liquid replenishing component 4 and the water replenishing component 5 to replenish the original liquid and / or RO water to the centralized water tank 1.

[0030] This utility model integrates the water tanks of the machine tools on the production line, unifies the filtering, proportioning and distribution, has a high degree of automation, improves the equipment utilization rate, saves labor, and the concentration meter 2 detects the cutting fluid concentration of the liquid outlet pipe 12 of the centralized water tank 1, and detects the concentration of the cutting fluid in use in real time. There is no concentration error caused by evaporation, loss, etc., which ensures that the concentration value of the mixed cutting fluid is consistent with the target concentration value, and the proportioning accuracy is high.

[0031] Example 2

[0032] Based on the structure of Example 1, Figure 1 , 2 As shown, the refilling assembly 4 is arranged outside the centralized water tank 1, and includes a raw liquid barrel 41, an oil barrel pump 42, and a liquid storage tank 43 connected in sequence. The liquid storage tank 43 is connected to the centralized water tank 1 through a raw liquid pump 44. A second liquid level sensor 45 is arranged in the liquid storage tank 43, and the second liquid level sensor 45 is used to monitor the liquid level in the liquid storage tank 43 and is electrically connected to the oil barrel pump 42; a third liquid level sensor 46 is arranged in the raw liquid barrel 41, and the third liquid level sensor 46 is used to monitor the liquid level in the raw liquid barrel 41. The liquid storage tank 43 can store 1000L of raw liquid. When the second liquid level sensor 45 detects that the raw liquid in the liquid storage tank 43 is insufficient, it sends a message to control the oil barrel pump 42 to start pumping raw liquid into the liquid storage tank 43. When the third liquid level sensor 46 detects that the raw liquid barrel 41 is empty, it sends a prompt message to replace the raw liquid barrel 41.

[0033] In the above structure, if Figure 1-3 As shown, the raw liquid pump 44 includes a solenoid valve 441, a one-way valve 442, a venturi valve 443, a solenoid valve 444, and a solenoid valve 445. The venturi valve 443 is provided with three connecting ends, wherein the first connecting end is connected to the liquid storage tank 43, the second connecting end is connected to the liquid outlet pipe 12 of the centralized water tank, and the third connecting end is connected to the clean liquid area of ​​the centralized water tank 1. The solenoid valve 441 and the one-way valve 442 are sequentially arranged on the connecting pipeline between the first connecting end and the liquid storage tank 43, the solenoid valve 444 is arranged on the branch pipeline 47 connected to the liquid outlet pipe 12 at the second connecting end, and the solenoid valve 3 445 is arranged on the liquid replenishment pipeline 48 connected to the centralized water tank 1 at the third connecting end.

[0034] Among them, Figure 1 , 3 As shown, the concentration meter 2 is arranged on a branch pipeline 47 connected to the liquid outlet pipe 12, and its liquid outlet is connected to the centralized water tank 1 through a liquid replenishment pipeline 48. The cutting fluid supplied by the liquid supply pump 3 to the machine tool enters the concentration meter 2 through the branch pipeline 47, and the concentration of the cutting fluid is detected in real time, and then returns to the centralized water tank 1 through the liquid replenishment pipeline 48; a control valve 21 is also provided at each end of the concentration meter 2, and the control valve 21 is a normally open control valve. When the concentration meter 2 needs to be repaired and maintained, the two control valves 2 are closed, and the maintenance can be carried out without stopping the machine.

[0035] Among them, Figure 1 , 2 As shown, the water replenishment assembly 5 is arranged outside the centralized water tank 1, and includes a check valve 2 51, a water meter 52, a flow meter 53 and a solenoid valve 4 54 arranged in sequence on the water replenishment pipeline, and the water replenishment pipeline is connected to the RO water pipe. The water meter 52 and the flow meter 53 monitor and control the replenished RO water capacity.

[0036] In addition, the secondary filtration module includes a scraper filter mechanism and a negative pressure filter mechanism arranged in sequence. The scraper filter mechanism is used for coarse filtration of machine tool return fluid, and the negative pressure filter mechanism is used for fine filtration of machine tool return fluid. The scraper filter mechanism can be a scraper chip conveyor, a roller scraper chip conveyor, etc., and the negative pressure filter mechanism can be a circulating belt negative pressure filter, a filter paper negative pressure filter, etc. The secondary filtration has a high filtration accuracy, which can reach 15-60um, providing higher quality cutting fluid and reducing overall energy consumption.

[0037] To facilitate observation, inspection and maintenance, Figure 1 , 2 As shown, the centralized water tank 1 includes a box body and a plurality of cover plates 13 arranged on the top of the box body, the plurality of cover plates 13 are arranged in an array and are detachably connected to the box body, and a handle is provided on the cover plate 13. A staircase is also provided on the outside of the centralized water tank 1, and a guardrail is provided on the top.

[0038] The working principle of the integrated cutting fluid automatic dispensing device of the utility model is: firstly, the target concentration value and the target water tank capacity are set on the display screen according to the machine tool requirements; during the dispensing, the liquid supply pump 3 continuously supplies liquid to the machine tool, and the concentration meter 2 detects the cutting fluid concentration in real time.

[0039] When the concentration meter 2 detects that the concentration of the cutting fluid is low, the liquid level sensor 1 6 detects the current liquid level of the centralized water tank 1, and the control system automatically calculates the amount of raw liquid that needs to be added. The program controls the solenoid valve 1 441, the solenoid valve 2 444, and the solenoid valve 3 445 to open, and the raw liquid in the liquid storage tank 43 is pumped into the centralized water tank 1 by the raw liquid pump 44. The amount of raw liquid added is controlled by the liquid level sensor 2 45 on the liquid storage tank 43. After the liquid replenishment is completed, the solenoid valve 1 441, the solenoid valve 2 444, and the solenoid valve 3 445 are closed;

[0040] When the concentration meter 2 detects that the concentration is too high, the liquid level sensor 1 6 detects the current liquid level of the centralized water tank 1, and the system automatically calculates the amount of RO water that needs to be added, controls the solenoid valve 4 54 to open, and replenishes water to the centralized water tank 1. The replenishment amount is controlled by the flow meter 53;

[0041] If the target liquid level (target water tank capacity) is not reached after refilling in the above two situations, the control system automatically calculates the amount of stock liquid and RO water that needs to be added, and the liquid replenishment component 4 and the water replenishment component 5 are started simultaneously to replenish the stock liquid and RO water to the centralized water tank 1, and the centralized water tank 1 is filled to the target liquid level.

[0042] This practical type uses a centralized water tank to integrate the water tanks of the machine tools on the production line, integrating filtration, proportioning, and distribution. The proportioning accuracy is high, the system is fully automated, the degree of automation is high, the equipment utilization rate is improved, and all indicators are better than single-machine processing. The service life of the cutting fluid can be increased by 2-4 years or even longer, providing higher quality cutting fluid, reducing overall energy consumption, and saving labor.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An integrated cutting fluid automatic dispensing device, characterized in that: It includes a centralized water tank, a proportioning mechanism, a concentration meter, and a liquid supply pump. A return liquid pipe connected to all machine tools on the production line is provided on the outside of the centralized water tank. A secondary filter module is provided in the centralized water tank. The return liquid from the machine tools flows into the centralized water tank through the return liquid pipe and then flows into the clean liquid area at the lower end of the centralized water tank after being filtered by the secondary filter module. The proportioning mechanism is connected to the clean liquid area of ​​the centralized water tank and can automatically proportion the cutting fluid concentration in the centralized water tank according to the concentration value detected by the concentration meter. The liquid outlet pipe of the centralized water tank is connected to the cutting fluid spray pipe of the machine tools on the production line, and a plurality of liquid supply pumps arranged in parallel are provided between the liquid outlet pipe of the centralized water tank and the cutting fluid spray pipe, one of the plurality of liquid supply pumps is a standby liquid supply pump, and the concentration meter is arranged on the liquid outlet pipe of the centralized water tank, downstream of the liquid supply pump.

2. The integrated cutting fluid automatic dispensing device according to claim 1 is characterized in that: It also includes a control system, which includes a display screen. The target concentration value and target water tank capacity can be set on the display screen, and concentration ratio parameters can also be displayed.

3. The integrated cutting fluid automatic dispensing device according to claim 2 is characterized in that: The proportioning mechanism includes a liquid replenishing component, a water replenishing component and a liquid level sensor 1. The liquid level sensor 1 is arranged in the centralized water tank and is used to detect the liquid level in the clean liquid area in the centralized water tank. The liquid replenishing component is used to replenish the raw liquid, and the water replenishing component is used to replenish the RO water. The control system calculates the RO water capacity and / or the raw liquid capacity to be replenished according to the concentration value detected by the concentration meter, the liquid level value detected by the liquid level sensor 1, the target concentration, and the target water tank capacity, and controls the liquid replenishing component and the water replenishing component to replenish the raw liquid and / or RO water to the centralized water tank.

4. The integrated cutting fluid automatic dispensing device according to claim 3 is characterized in that: The liquid replenishing component is arranged outside the centralized water tank, and includes a raw liquid barrel, an oil barrel pump, and a liquid storage tank connected in sequence. The liquid storage tank is connected to the centralized water tank through the raw liquid pump. A second liquid level sensor is arranged in the liquid storage tank. The second liquid level sensor is used to monitor the liquid level in the liquid storage tank and is electrically connected to the oil barrel pump; a third liquid level sensor is arranged in the raw liquid barrel. The third liquid level sensor is used to monitor the liquid level in the raw liquid barrel.

5. The integrated cutting fluid automatic dispensing device according to claim 4 is characterized in that: The raw liquid pump includes solenoid valve 1, one-way valve 1, venturi valve, solenoid valve 2, and solenoid valve 3. The venturi valve is provided with three connection ends, wherein the first connection end is connected to the liquid storage tank, the second connection end is connected to the liquid outlet pipe of the centralized water tank, and the third connection end is connected to the clean liquid area of ​​the centralized water tank. The solenoid valve 1 and the one-way valve 1 are sequentially arranged on the connecting pipeline between the first connection end and the liquid storage tank, the solenoid valve 2 is arranged on the branch pipeline connected to the liquid outlet pipe at the second connection end, and the solenoid valve 3 is arranged on the liquid replenishment pipeline connected to the centralized water tank at the third connection end.

6. The integrated cutting fluid automatic dispensing device according to claim 1 or 5, characterized in that: The concentration meter is arranged on a branch pipeline connected to the liquid outlet pipeline, and its liquid outlet is connected to the centralized water tank through a liquid replenishment pipeline. A control valve is also arranged at each end of the concentration meter.

7. The integrated automatic cutting fluid dispensing device according to claim 3 is characterized in that: The water replenishment assembly is arranged outside the centralized water tank, and comprises a second one-way valve, a water meter, a flow meter and a fourth solenoid valve which are arranged in sequence on a water replenishment pipeline, and the water replenishment pipeline is connected to the RO water pipe.

8. The integrated cutting fluid automatic dispensing device according to claim 1, characterized in that: The secondary filtration module comprises a scraper-type filtration mechanism and a negative pressure filtration mechanism which are arranged in sequence. The scraper-type filtration mechanism is used for coarse filtration of machine tool return liquid, and the negative pressure filtration mechanism is used for fine filtration of machine tool return liquid.

9. The integrated cutting fluid automatic dispensing device according to claim 1, characterized in that: The centralized water tank includes a box body and a plurality of cover plates arranged on the top of the box body. The plurality of cover plates are arranged in an array and are detachably connected to the box body. The cover plates are provided with handles.

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