Load oil gas atomizing and spraying system for block pusher of forming machine

Abstract

The utility model is suitable for the technical field of spraying, and provides a forming machine block pusher load oil gas atomizing and spraying system which comprises a connection chamber, an atomizing chamber and a spraying chamber, at least part of the block pushing device is placed in the containing cavity; at least part of the drag chain is located in the containing cavity, one end of the drag chain is connected with the block pushing device, and the other end of the drag chain is connected with the bottom face of the containing cavity; and the spraying assembly is arranged at the top of the block pushing device and is used for spraying the module assembly. According to the spraying system, an original feeding trolley loading spraying system is changed into a pushing block device loading spraying system, the spraying efficiency is high, the product percent of pass is increased, the spraying utilization rate is high, spraying liquid waste is little, and pollution to equipment and on-site environment is small; the structure is simple and compact, and the equipment failure rate and maintenance cost are extremely low.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying, in particular to an oil-gas atomization spraying system loaded by a block pusher of a molding machine. Background Art

[0002] The initial design of the molding machine uses the feeder trolley-loaded oil-gas atomization spraying technology. When the feeder trolley is driven by the motor reducer to move above the mold and below the mold cover, the nozzle installed at the upper end of the feeder trolley sprays lubricating fluid to the mold cover, and the nozzle installed at the lower end of the feeder trolley sprays lubricating fluid to the mold, the purpose of which is to prevent the paste from sticking to the mold, mold cover and other molding equipment. However, when there is a lot of fog or smoke on site, the feeder trolley that uses the laser ranging method to determine the position is prone to malfunction, and the spray will fail or spray by mistake.

[0003] During the horizontal movement of the feeding trolley, materials from the upstream equipment splash, causing the rotating nozzle to easily become clogged with materials, affecting the atomization effect of the spray liquid and the system pressure. Frequent faults such as low spray efficiency and poor effect cause the carbon blocks to stick when demolding, reducing the product qualification rate and increasing the production cost of the workshop.

[0004] The spray system loaded on the mobile cart has a large number of nozzles and a large spray coverage area, resulting in serious waste of lubricating oil. In addition, the oil used is not easy to degrade and clean, which seriously pollutes the on-site equipment and environment and fails to meet the requirements of clean production.

[0005] The spray pipe moves with the feeding trolley, and its large range of movement leads to a large wear area of ​​the spray pipe and a short service life. In addition, other spare parts are consumed, and imported spare parts are expensive, resulting in high maintenance and repair costs. Utility Model Content

[0006] The purpose of the utility model is to provide a molding machine pusher load oil and gas atomization spray system to solve the above technical problems existing in the prior art, mainly including the following contents:

[0007] The present application provides a molding machine block pusher load oil and gas atomization spray system, comprising:

[0008] A docking chamber, wherein the docking chamber has a receiving cavity;

[0009] a block pusher, the block pusher being at least partially placed in the accommodating cavity;

[0010] A drag chain, wherein at least a portion of the drag chain is located in the accommodating cavity, and one end of the drag chain is connected to the block pusher, and the other end of the drag chain is connected to the bottom surface of the accommodating cavity;

[0011] A spray assembly is arranged on the top of the block pusher and is used for spraying the module assembly.

[0012] Furthermore, the spray assembly includes a spray head and a spray pipe, one end of the spray pipe is connected to the spray head, and the other end of the spray pipe is connected to a liquid supply assembly, and the liquid supply assembly is used to provide spray liquid to the spray head.

[0013] Further, the drag chain has a receiving channel, the receiving channel extends along the axial direction of the drag chain, the nozzle passes through the receiving channel, and the nozzle is fixedly connected to the receiving channel.

[0014] Furthermore, a track is provided on the bottom surface of the docking chamber accommodating cavity, and the block pusher can enter and exit the accommodating cavity along the track, thereby driving the drag chain and the nozzle to move with the block pusher.

[0015] Furthermore, a mounting seat is provided at the front end of the block pusher, and the drag chain is connected to the mounting seat.

[0016] Furthermore, a mounting position for positioning and installing a spray assembly is provided on the top of the block pusher, and the spray assembly is fixed to the mounting position via a fixing seat.

[0017] Furthermore, a support assembly is provided at one end of the docking chamber away from the block pusher, and the support assembly is used to support the drag chain located outside the docking chamber.

[0018] Furthermore, the spray assembly also includes a solenoid valve, and the solenoid valve is installed on the spray pipe.

[0019] Furthermore, the liquid supply component includes a liquid supply device and a liquid supply pump, the liquid supply pump is connected to the liquid supply device, and the liquid supply pump is communicated with the nozzle.

[0020] Furthermore, the spray liquid in the liquid supplier is a water-soluble cutting fluid.

[0021] Compared with the prior art, the utility model has at least the following technical effects:

[0022] 1) The oil-gas atomizing spray system for the block pusher of the molding machine provided by the present application completely eliminates the spray technology of the feed trolley load spray system by installing a spray assembly on the block pusher. The spray assembly is added to the normal block pusher. It is only necessary to spray the mold cover of the mold and the heavy hammer during the process of the block pusher being retracted to the docking chamber, thereby achieving the synchronous completion of spraying and pushing the blocks. The present application sets up a drag chain, connects the drag chain with the block pusher, and places the nozzle part in the spray assembly in the drag chain. When the block pusher drives the drag chain to move, the nozzle will also move together, avoiding damage such as bending of the nozzle during movement, extending the life of the nozzle, and increasing the protection of the nozzle.

[0023] 2) This application changes the original feeding trolley load spraying system to a pusher load, with high spraying efficiency and improved product qualification rate; the spraying medium is changed from lubricating oil to water-soluble cutting fluid, reducing the cost by more than 94%; the spraying utilization rate is high, the spraying fluid is less wasted, and the pollution to the equipment and on-site environment is small; the structure is simple and compact, and the equipment failure rate and maintenance cost are extremely low. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of the oil-gas atomization spray system loaded by the block pusher of the molding machine in the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the block pusher and the spray assembly in the utility model. Figure 1 ;

[0027] Figure 3 This is a schematic diagram of the structure of the block pusher and the spray assembly in the utility model. Figure 2 .

[0028] In the figure: 10-connection chamber; 20-block pusher; 21-mounting seat; 30-drag chain; 40-spray assembly; 41-spray head; 42-spray pipe; 44-solenoid valve; 50-liquid supply assembly; 51-liquid supply device; 52-liquid supply pump; 60-support assembly; 61-support plate; 62-reinforcement member; 70-module assembly; 80-fixing seat; DETAILED DESCRIPTION

[0029] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0030] 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.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In the prior art, the molding machine usually uses a spray device installed on the top and bottom of the feeding trolley. When the feeding trolley moves between the mold and the mold cover, the spray device is started, and the nozzle sprays lubricating liquid to the mold and the mold cover at the same time to prevent the paste from sticking to the mold, mold cover and other molding equipment. However, when there is fog or smoke on site, the feeding trolley is prone to spraying by mistake. At the same time, the spray pipe installed on the feeding trolley needs to move with the feeding trolley. The spray pipe will contact the mold and other molding parts during the movement. The spray pipe is severely worn and prone to leakage. In view of this, the present application provides a molding machine pusher load oil and gas atomization spray system to solve these existing problems.

[0034] like Figure 1-Figure 3 As shown, the present application provides a molding machine pusher load oil and gas atomization spray system, comprising:

[0035] A docking chamber 10, wherein the docking chamber 10 has a receiving cavity;

[0036] a block pusher 20, wherein the block pusher 20 is at least partially placed in the accommodating cavity;

[0037] A drag chain 30, wherein at least a portion of the drag chain 30 is located in the accommodating cavity, and one end of the drag chain 30 is connected to the block pusher 20, and the other end is connected to the bottom surface of the accommodating cavity;

[0038] The spray assembly 40 is disposed on the top of the block pusher 20 and is used for spraying the module assembly 70 .

[0039] In the above scheme, the docking chamber 10 is a rectangular parallelepiped or a cube as a whole, and the specific structure of the docking chamber 10 is not limited here. The docking chamber 10 is a frame structure as a whole, and the interior is a hollow structure. For example, the docking chamber 10 is a rectangular parallelepiped formed by a plate-shaped top, protective nets on the front and back sides, and through-holes on the left and right sides. The space formed by the hollow structure inside the docking chamber 10 is a accommodating cavity, and the block pusher 20 is stored in the accommodating cavity. The block pusher 20 is initially located in the accommodating cavity, and moves out of the accommodating cavity when the work is started. After the work is completed, the block pusher 10 returns to the accommodating cavity. In addition to the device for connecting the block pusher 20, the accommodating cavity is also equipped with a de-driving device for driving the block pusher, as well as a spray-related device.

[0040] The spray-related device installed in the accommodating cavity includes a drag chain 30, and most of the drag chain 30 is located in the accommodating cavity. One end of the drag chain 30 is detachably connected to the front end of the block pusher 30, and the other end is detachably connected to the bottom surface of the accommodating cavity. The two ends of the drag chain 30 are respectively connected to the front end of the block pusher 30 and the bottom surface of the accommodating cavity. The part other than the two ends of the drag chain 30 is not connected to other parts and belongs to a free moving section. When the block pusher 30 moves, it can drive the drag chain 30 to move together, and the mold and the like will not be damaged during the movement of the drag chain 30.

[0041] It also includes a spray assembly 40. In this application, the spray assembly 40 is loaded on the block pusher 20, so that the spray assembly 40 is located below the molded parts such as the mold and the mold cover, and can spray them. Specifically, the spray assembly 40 is installed on the top of the block pusher 20, and the spray liquid is sprayed onto the upper mold assembly 70 through the nozzle 41 in the spray assembly 40, which helps to speed up the demoulding. At the same time, the spray liquid has a great impact force. While spraying the mold assembly 70, the stains on the surface of the nozzle 41 can be cleared to ensure that the nozzle 41 is not blocked, thereby reducing the damage and replacement of the nozzle 41.

[0042] At the same time, the nozzle 42 in the spray assembly 40 is partially located in the drag chain 30. The drag chain 30 is moved by the pusher 20. It is only necessary to spray the mold assembly 70 in real time according to the position of the pusher 20. The spray assembly 40 no longer needs to obtain the position where spraying is required for spraying, and the drag chain 30 supports the nozzle 42, thereby avoiding bending and wear of the nozzle 42 during movement.

[0043] Therefore, the oil-gas atomizing spray system for the block pusher of the molding machine provided by the present application completely eliminates the spray technology of the feed trolley-loaded spray system by installing the spray assembly 40 on the block pusher 20, and the spray assembly 40 is added to the normal block pusher 20. It is only necessary to spray the mold cover of the mold and the heavy hammer during the process of the block pusher 20 being retracted to the docking chamber 10, so that the spraying and pushing of the blocks can be completed synchronously. The present application sets a drag chain 30, connects the drag chain 30 with the block pusher 20, and the nozzle 42 in the spray assembly 40 is partially placed in the drag chain 30. When the block pusher 20 drives the drag chain 30 to move, the nozzle 42 will also move together, avoiding the nozzle 42 from bending or other damage during the movement, extending the life of the nozzle 42, and increasing the protection of the nozzle 42.

[0044] Furthermore, the spray assembly 40 includes a spray head 41 and a spray pipe 42 . One end of the spray pipe 42 is connected to the spray head 41 , and the other end is connected to a liquid supply assembly 50 . The liquid supply assembly 50 is used to provide spray liquid to the spray head 41 .

[0045] In the above scheme, the spray assembly 40 in the present application includes a spray head 41 and a nozzle 42. The spray head 41 is installed on the top of the block pusher 20, and the spray head 41 can be rotated to ensure that comprehensive spraying can be performed in multiple directions at the same position without moving the block pusher 20; the spray head 41 requires spray liquid, so a nozzle 42 is connected to the lower end of the spray head 41, and the other end of the nozzle 42 is connected to the liquid supply assembly 50. The spray liquid in the liquid supply assembly 50 is transmitted to the spray head 41 through the nozzle 42 to ensure that the spray head 41 can spray normally.

[0046] It should be noted that the nozzle 42 in the present application is soft and flexible and is not easily broken or damaged.

[0047] Furthermore, the drag chain 30 has a receiving channel, the receiving channel extends along the axial direction of the drag chain 30, the nozzle 42 passes through the receiving channel, and the nozzle 42 is fixedly connected to the receiving channel.

[0048] In the above scheme, the drag chain 30 of the present application is composed of a plurality of chain units connected in sequence, and two adjacent chain units are rotationally connected. One of the two chain units at the first end is connected to the bottom surface of the accommodating cavity by bolts, and the other is connected to the front end of the block pusher 20 by bolts. After the plurality of chain units are connected in sequence, an accommodating channel is formed in the middle. The accommodating channel extends along the length direction of the drag chain, that is, extends in the axial direction. The nozzle 42 partially passes through the accommodating channel, that is, one end of the nozzle 42 passes through the accommodating channel and is connected to the nozzle 41 on the block pusher 20, and the other end passes through the accommodating channel and is connected to the liquid supply component 50. The nozzle 42 is fixedly connected to the inside of the accommodating channel, so that the nozzle 42 will not rub against the drag chain 30 during the movement of the drag chain 30, and the nozzle 42 can move with the drag chain 30, and the nozzle 42 can also be protected to avoid breaking, so as to ensure the normal spraying of the nozzle 41 on the mold.

[0049] Furthermore, a track is provided on the bottom surface of the receiving cavity of the docking chamber 10, and the track extends along the travel path of the block pusher 20 in the receiving cavity, so that the block pusher 20 can quickly enter and exit the receiving cavity along the track, and then drive the drag chain 30 and the nozzle 42 to follow the movement of the block pusher 20. At the same time, the track is provided to facilitate the block pusher 20 to travel along the prescribed route without driving errors, reducing the operation of real-time positioning of the block pusher 20.

[0050] Furthermore, a mounting seat 21 is provided at the front end of the block pusher 20 , and the drag chain 30 is connected to the mounting seat 21 .

[0051] In the above scheme, one end of the drag chain 30 is fixedly connected to the mounting seat 21 by bolts, and the drag chain 30 is fixed to the front end of the block pusher 30, so as to avoid a part of the length of the drag chain 30 being placed on the block pusher 20 and increasing the weight of the block pusher 30. In addition, the mounting seat 21 is arranged at the front end of the block pusher 20, so that one end of the drag chain 30 can find the connection position accurately and quickly, and avoid the inappropriate installation position of the drag chain 30 on the block pusher 20, which causes problems in the driving of the block pusher 20.

[0052] Furthermore, a mounting position for positioning and mounting the spray assembly 40 is provided on the top of the block pusher 20, and the spray assembly 40 is fixed on the mounting position through a fixing seat 80. The spray head 41 is installed on the fixing seat 80, and the fixing seat 80 is used to position and install the spray head 41, and the spray head 41 can rotate relative to the fixing seat 80 to spray the mold and the mold cover. At the same time, the fixing seat 80 also supports and fixes the nozzle 42 connected to the lower end of the spray head 41, ensuring that the spray head 41 is still connected to the nozzle 42 even if it is subjected to a large impact force when spraying water-soluble cutting fluid, and the position between the two does not change.

[0053] Furthermore, a support assembly 60 is provided at one end of the docking chamber 10 away from the block pusher 20, and the support assembly 60 is used to support the drag chain 30 located outside the docking chamber 10. Since the drag chain 30 is long, when the block pusher 20 is retracted into the docking chamber 10, a portion of the drag chain 30 away from the block pusher 20 is suspended outside the docking chamber 10. Since the drag chain 30 is heavy, the portion of the drag chain 30 suspended outside the docking chamber 10 is easy to fall off, thereby driving the block pusher 20 to move and fall from the docking chamber 10. Therefore, a support assembly 60 is provided at the lower end of the suspended part of the drag chain 30 in the docking chamber 10, and the support assembly 60 includes a support plate 61 connected to the accommodating cavity and extending from the accommodating cavity, and also includes a reinforcement 62, one end of the reinforcement 62 is connected to the bottom of the support plate 61, and the other end is connected to the side of the docking chamber 10 away from the block pusher 20, and the reinforcement 61 has an angle with the support plate 61 and the side of the docking chamber 10 to strengthen the supporting force of the support plate 61 for the drag chain 30.

[0054] Furthermore, the spray assembly 40 further includes a solenoid valve 44, which is installed on the spray pipe 42. The installed solenoid valve 44 can control the on and off of the spray pipe 42 in real time. When it is necessary to provide spray liquid to the spray head 41, the solenoid valve 44 controls the spray pipe 42 to open and spray liquid to the spray head 41; when the spray head 41 does not need to spray at this time, the solenoid valve 44 controls the spray pipe 42 to close, thereby avoiding the waste of spray liquid. When it is necessary to spray water-soluble cutting fluid, the solenoid valve 44 is controlled to operate through the spray start program, thereby realizing spray automation and remote control.

[0055] According to the needs of the site, a spray start procedure needs to be added at a certain point in the process of the pusher 20 being retracted. At this time, the electrical control system prompts the electromagnetic valve 44 to be energized and activated, the nozzle 42 remains unobstructed, and the nozzle 41 immediately sprays the water-soluble cutting fluid. When reaching another point, a spray closing procedure is added, the electromagnetic valve 44 is powered off and the pipeline is blocked, the nozzle 41 stops working, and the spray system is completed.

[0056] Furthermore, the liquid supply assembly 50 includes a liquid supply device 51 and a liquid supply pump 52 . The liquid supply pump 52 is connected to the liquid supply device 51 , and the liquid supply pump 52 is communicated with the nozzle 42 .

[0057] In the above scheme, the liquid supply pump 52 is a multi-stage centrifugal cooling pump, which is fixed on the liquid supply device 51 through a flange connection. The motor drives the liquid supply pump 52 to convert mechanical energy into hydraulic energy, providing pressurized water-soluble cutting fluid for the entire spray system, increasing the internal circulation system, stabilizing the pressure of the spray system, and protecting the system from overload.

[0058] A pressure regulating valve is also provided in the present application to control the pressure in the hydraulic system. When the system pressure exceeds the set value, the overflow valve will open to allow the excess water-soluble cutting fluid to flow back to the oil tank, thereby keeping the system pressure stable within the set value range.

[0059] Furthermore, the spraying liquid in the liquid supplier 51 is a water-soluble cutting fluid.

[0060] In the above scheme, the spraying medium is changed from lubricating oil to water-soluble cutting fluid, which reduces the cost by more than 94%; the spraying utilization rate is high, the spraying fluid is less wasted, and the pollution to the equipment and on-site environment is small; the structure after the transformation is simple and compact, the equipment failure rate and maintenance cost are extremely low, ensuring smooth and continuous production operation.

[0061] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A block pusher load oil and gas atomization spray system for a molding machine, characterized in that: include: A docking chamber (10), wherein the docking chamber (10) has a receiving cavity; A block pusher (20), wherein the block pusher (20) is at least partially placed in the accommodating cavity; A drag chain (30), wherein at least a portion of the drag chain (30) is located in the accommodating cavity, and one end of the drag chain (30) is connected to the block pusher (20), and the other end is connected to the bottom surface of the accommodating cavity; A spray assembly (40), the spray assembly (40) is arranged on the top of the block pusher (20) and is used to spray the module assembly (70).

2. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 1, characterized in that: The spray assembly (40) comprises a spray head (41) and a spray pipe (42); one end of the spray pipe (42) is connected to the spray head (41), and the other end is connected to a liquid supply assembly (50); the liquid supply assembly (50) is used to provide spray liquid to the spray head (41).

3. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 2, characterized in that: The drag chain (30) has a receiving channel, the receiving channel extends along the axial direction of the drag chain (30), the nozzle (42) passes through the receiving channel, and the nozzle (42) is fixedly connected to the receiving channel.

4. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 3, characterized in that: A track is provided on the bottom surface of the receiving cavity of the docking chamber (10), and the block pusher (20) can enter and exit the receiving cavity along the track, thereby driving the drag chain (30) and the nozzle (42) to move along with the block pusher (20).

5. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 1, characterized in that: A mounting seat (21) is provided at the front end of the block pusher (20), and the drag chain (30) is connected to the mounting seat (21).

6. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 1, characterized in that: A mounting position for positioning and mounting a spray assembly (40) is provided on the top of the block pusher (20), and the spray assembly (40) is fixed to the mounting position via a fixing seat (80).

7. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 1, characterized in that: A support assembly (60) is provided at one end of the docking chamber (10) away from the block pusher (20), and the support assembly (60) is used to support the drag chain (30) located outside the docking chamber (10).

8. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 2, characterized in that: The spray assembly (40) further comprises a solenoid valve (44), wherein the solenoid valve (44) is installed on the spray pipe (42).

9. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 2, characterized in that: The liquid supply assembly (50) comprises a liquid supply device (51) and a liquid supply pump (52), wherein the liquid supply pump (52) is connected to the liquid supply device (51), and the liquid supply pump (52) is in communication with the nozzle (42).

10. The block pusher load oil-gas atomization spray system of the molding machine as claimed in claim 9, characterized in that: The spraying liquid in the liquid supply device (51) is a water-soluble cutting fluid.

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