KR101034095B1 - water-soluble lubricating treatment apparatus for cold forging - Google Patents

Abstract

An object of the present invention is to provide a method for forming a thin lubricant film on the surface of a material by using a water-soluble lubricant for cold forging, a method for lubricating a water-soluble lubricant, a method for minimizing the consumption of lubricant, and an apparatus thereof.

The water-soluble lubricating treatment device for cold forging according to the present invention includes: a drawing device for introducing a material into the device, a hot water washing device for heating and washing the drawn material, and a lubrication processor for forming a thin lubricant film on the surface of the material; It is provided with a hot water device and a lubrication treatment device is provided on the transfer device for moving the material between the processes, drying device for drying the film formed on the surface of the lubricated material.

The present invention provides a lubrication treatment method using a water-soluble lubricant for shortening the lubrication processing time using the currently developed cold forging water-soluble lubricant, and maintaining a good quality, and increases the efficiency of the operation, mass production through a continuous process Makes this possible.

Cold Forging, Water Soluble Lubricant, Bath Washer, Lubrication Treatment Equipment

Description

Water-soluble lubricating treatment apparatus for cold forging

The present invention provides a water-soluble lubricant treatment apparatus for cold forging that can reduce the friction between the material and the mold during cold forging, thereby reducing the processing load, extending the life of the mold, improving the dimensional accuracy of the product, and making the internal structure of the material uniform. It is about.

In the cold forging process, the lubrication process reduces the friction between the material and the mold, thereby reducing the processing load, thereby improving the life of the mold, improving the dimensional accuracy of the product, and contributing to the improvement of quality by uniformizing the internal structure of the material.

As the cold forging lubricating method, the phosphate coating process is most widely used, but has various limitations.

The phosphate coating process is a chemical reaction to form a phosphate layer to make the sludge, so the treatment cost is high, the entire process is long, occupies a large space, it takes a lot of time for the film treatment, the cleaning solution using acid is environmental It has a bad effect and requires a large amount of equipment for wastewater treatment.

As a way to solve this problem, the process water and processing time are shortened, and the research and development of environmentally friendly and excellent friction performance water-soluble lubricants has been made, and various water-soluble lubricant products have been released in various countries at home and abroad.

Water-soluble lubricant for cold forging is the main component to remove the scale and foreign substances through the shot blasting process as a pre-treatment step (S1) as shown in Figure 3 on the specific surface or the entire surface of the material to be applied lubricant, It is heated and washed at a constant temperature in the washing liquid consisting of this water, a thin lubricant film is formed on a specific surface or the entire surface of the material to be applied, and the formed lubricant film is dried and cold forged within 30 minutes or within a predetermined time. Lubricant developed for processing.

Cold forging water-soluble lubricating process is a hot water washing step (S2) for 1 to 3 minutes heating and washing in water of 70 ~ 80 ℃ as shown in the process diagram shown in Figure 3; Lubrication process (S3) to lubricate the lubricant for a very short time of about 1 to 5 seconds (S3); natural drying using only the temperature of the heated material to dry the lubricant applied to the surface of the material for about 1 to 3 minutes Or it is made of a drying step (S4) for hot air drying with a separate heat source, the short process (S1) is to be a pretreatment.

The time required for the phosphate coating process is less than 1 hour, but the water lubricating lubricant lubrication process takes about 2 to 6 minutes, and when directly connected to the cold processing process (S5), the logistics cost can be greatly reduced. If the proper production line is configured, the facility space can be greatly reduced compared to the existing phosphate coating line.

However, in spite of the above-mentioned advantages, the water-soluble lubricant has a high price of the lubricant, so if a lot of waste lubricant is used, the price competitiveness of the product is lost, and an appropriate lubrication method is not established to maintain excellent quality. Due to the difficult configuration of the lubrication treatment device according to the shape of 1), it has not been applied to the mass production process in earnest.

Conventionally known water-soluble lubrication treatment apparatus includes a rotary drum type lubrication treatment apparatus (Fig. 1) and a continuous conveyor lubrication treatment apparatus (Fig. 2) according to Patent No. 10-0688361.

The rotating drum type lubrication processing apparatus (FIG. 1) constitutes a hot water tank 90 for a hot water washing process, a lubrication tank 91 for a lubricating process, and a drying device 92 for a drying process, and a plurality of materials on the top. It consists of a rotating material container (93) provided to accommodate the tangential tank (90), the lubrication tank (91) and the drying device (92) for sequentially moving the moving means (95) and immersed in each tank. An apparatus characterized by including a lowering means (94) for (iii).

The lubrication treatment device having a rotating drum type lubrication device or the like has a processing capacity capable of treating a large amount of material at once according to the size of the material container 93, and the hot water tank 90 and the lubrication tank ( When performing the process work immersed in 91, such as the grooves (101, 102) of the material (1a, 1b, 1c, 1d) material having a site where the washing liquid (2) and the lubricant (3) may accumulate In this case, it is possible to discharge the hot water (2) and the lubricant (3) to the outside through the rotation of the material container (93).

However, this rotary drum type lubrication device completes one cycle of hot water (S2)-lubrication (S3)-drying (S4) and then accepts the material again to perform hot water (S2)-lubrication (S3)-drying (S4) processes. If the lubricant is not applied to the material container (93) and dried to wash the lubricant, the washing liquid in the bath tank 90 will be contaminated with the lubricant, so a washing process must be additionally installed. The lubricant applied to the material container 93 is wasted.

The continuous conveyor type lubrication treatment apparatus (FIG. 2) constitutes a hot water tank 90 'for the hot water treatment process, a lubrication tank 91' for the lubrication process, and a drying device 92 'for the drying process. It is a device characterized in that it comprises a conveyor (93 ') for accommodating a plurality of materials, to guide the one-way movement of the material and to sequentially enter and exit each tank.

The continuous conveyor type lubrication apparatus (FIG. 2) or a lubrication apparatus having a similar structure is hot water (S2) -lubrication (S3)-by driving a conveyor 93 'in which a plurality of materials are connected in one direction as shown. Since it is designed to complete one cycle of drying (S4), the conveyor 93 'is heated like the material put into the tank in the tank 20' and is heated again outside the tank, and the cooling is repeated again. Excessively occurs, the lubricant buried in the conveyor 93 'passing through the lubrication tank 91' is connected to the outside, which leads to waste of lubricant.

And in the case of a material having a deep hole 101 or a shallow groove 102, such as the material (1a, 1b, 1c, 1d) shown in Figure 5 as shown in Figure 6 the deep hole 101 and shallow Lubricant is not applied when the groove 102 is filled with air, or the lubricant 3b is accumulated on the upper surface or deep hole 101 and the shallow groove 102 of the raw material after lubrication. Pollution of the external environment.

In addition, the poorly lubricated material through such a process may form a thick lubricant film on a part of the surface or the lubricant film may not be dried, thereby roughening the surface of the product during the processing process (S5), or significantly reducing the lubricating performance of the lubricant film, thereby damaging the mold. Will bring.

Due to the above problems, the conventional water-soluble lubrication treatment device is not applied to a large number of continuous production lines such as an automobile parts production line, but is used only for a temporary mass production of a product having a simple shape, such as a round bar cut, for experimental use. have.

An object of the present invention is to provide a method and apparatus for solving the problems of the conventional cold forging water-soluble lubricating treatment device as described above.

In order to apply the cold forging water-soluble lubricant to the mass production process, it provides a method and apparatus that can uniformly apply the lubricant to a specific part or the entire surface of the material, and a method that can be managed to prevent mutual contamination between processes. It provides a device, a method and a device that can drastically reduce the amount of lubricants that are wasted more than necessary, and reduces the energy consumption, which is a disadvantage of the existing phosphate coating process, and is an environmentally friendly water-soluble lubrication for cold forging with little waste. It is an object to provide a treatment apparatus.

The water-soluble lubricating treatment device for cold forging according to the present invention includes an inlet device for introducing a material that is conveniently arranged for transport and management; a primary feeder for injecting the introduced material into a hot water washing device; A hot water washing device for removing foreign substances from the surface; a secondary feeder for taking out the heated material from the hot water washing device; and an excessive lubricant contained in the lubricated material, which is transported to lubricate the hot water processing material and then lubricated. Transfer to change the posture so that the flow can flow down ;, Lubrication treatment unit provided to evenly lubricate the material subjected to the hot water treatment process ;, Drying device for drying the lubrication film formed on the material subjected to the lubrication treatment process It consists of.

The water-soluble lubrication treatment device for cold forging according to the present invention is environmentally friendly, energy efficient, and can replace the existing phosphate coating line as a water-soluble lubrication treatment device that can greatly reduce the process time and work space.

The water-soluble lubricating treatment device for cold forging according to the present invention can be lubricated continuously and quickly for a material having a simple shape as well as a material having a special shape that is difficult to be lubricated, thereby enabling mass production.

Through the water-soluble lubrication treatment method specified in detail in the present invention, the effect of improving the quality of the lubricated product occurs, and the water-soluble lubricant can be widely distributed, so that the overall production efficiency of the cold forging system is increased, the production cost is reduced, and the environment. The effect is to prevent contamination.

Lubrication treatment apparatus according to the present invention can significantly reduce the size of the lubrication tank compared to the existing lubrication treatment apparatus can reduce the installation space, eliminate the waste of lubricants buried in the material and the lubrication treatment apparatus, and significantly waste energy It is possible to reduce the production efficiency.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a typical cold forging water-soluble lubricating process chart, Figure 4 is a schematic configuration diagram of a lubricating treatment apparatus for forming a water-soluble lubricant coating according to the present invention, Figure 5 is a main material to be processed in the lubricating treatment device of the present invention Figure 6 is an illustration of the shape, Figure 6 is a view showing the defective product generation factors and lubricant waste factors in the water-soluble lubricating process, Figure 7 is a detailed configuration of the cold forging water-soluble lubricating treatment according to the present invention, Figure 8 is the present invention It is a configuration diagram of the water-soluble lubrication treatment device tilting device for cold forging, Figure 9 is a conceptual view of the operation of the tilting device according to the present invention.

The lubricant applied in the lubrication treatment apparatus according to the present invention is a water-soluble lubricant developed for cold forging, produced by domestic and foreign manufacturers to apply a solid content of 5 ~ 25g / m² to the surface of the cold forging material used as a cold forging lubricant It is a water-soluble lubricant for all cold forgings.

Cold forging material used in the lubricating treatment apparatus according to the present invention is a material similar to that shown in Figure 5 having a simple shape, such as medium and small round bar cutting material or disc cutting material of about 200 to 10 kilograms in weight of the material A material having a special shape (1a, 1f), including a deep hole 101 or a shallow groove 102 on one or both sides, which makes it difficult to apply lubricant by simple dipping and can lead to waste of lubricant. 1b, 1c, 1d).

The drawing device 10 is a device for drawing in order to lubricate the aligned material 1 and is located at the foremost part of the lubrication treatment device, and has a material seating part having an accurate position and posture according to the shape of the material 1. Characterized in that having a structure having a single row or a plurality of rows in the material mounting portion, and has a independent drive device characterized in that it is controlled in dependence on the conveying conveyor 23 of the washing machine (20).

The primary feeder (50a) is a device that serves to pick up the material (1) in the final conveying step of the introduction device 10 to supply to the hot water washing device (20), grip (53a) for holding the material (1) And; a grip block 54a having a grip 53a fixed thereto; and a driving device 55a for vertical movement of the grip block 54a; and fixing the devices and moving back and forth along the guide rail 57. And a feeder block 56a having a guide surface for the forward motion, and a drive unit 51a for the forward and backward motion of the feeder block 56a.

The secondary feeder (50b) is the same configuration as the primary feeder (50a) to pick up the material (1) in the final transfer step of the hot water washing device 20 to dry the washing liquid on the surface of the material (1) A device for supplying the material seating portion (27a) to transfer the material (1) to the next step, the grip 53b for holding the material (1); Grip block 54b is fixed to the grip 53b And, a driving device 55b for vertical movement of the grip block 54b, and a feeder block 56b for fixing the devices and having a guide surface for forward and backward movement along the guide rail 57; , The drive unit 51b for the forward and backward movement of the feeder block 56b.

The primary feeder 50a and the secondary feeder 50b are single driving devices, and only one driving device of the driving device 51a of the primary feeder 50a or the driving device 51b of the secondary feeder 50b is used. By installing the tuning bar 52 to be used, it is characterized in that it is connected to the forward and backward movement together.

The grip 53a attached to the primary feeder 50a, the grip block 54a, and the driving device 55a are attached in a row or a plurality of rows in the conveying direction, and the grip 53b attached to the secondary feeder 50b. ) And the grip block 54b and the driving device 55b are attached in a line or a plurality of rows in the same feed direction as the primary feeder, so that the material 1 can be processed at once.

The hot water washing device 20 includes a hot water tank 21 for receiving a hot water liquid 2 for heating the material 1 in a conductive manner, and a heater 24 for directly heating the hot water liquid by injecting it into the hot water liquid. ), And a heat insulating material 22 surrounding the hot water tank 21; and a transfer conveyor 23 that is completely submerged in the hot water liquid 2 and responsible for the transfer of the material.

One side of the hot water tank 21 has a hole so that the hot liquid 2 overflows, and an auxiliary tank 20 'for receiving the hot liquid 2a overflowed therein is installed, and the auxiliary tank 20' ), The hot water washing liquid 2b is characterized in that it is accommodated in the hot water tank 21 through the pipe and the pump 28 connected to the bottom.

And it is characterized in that for detecting the material transferred to the final step of the conveying conveyor 23 provided in the hot water tank 21, the detection device 25 in the hot water liquid.

And in order to accommodate the material is finished in the hot water washing process in the upper portion of the hot water tank 21 is installed a material seating portion (27a), the inclined plate 26 for recovering the hot water liquid flowing down from the material to the hot water tank (21) Characterized in that installed.

The material seating part 27a provided at one side of the material seating part and the bath washing tank 21 of the conveying conveyor 23 may be arranged in one row or a plurality of rows in the same manner as the number of seats of the material seating part of the drawing device 10. It is done.

The transfer 60 may include a primary grip 63a for injecting a material passed through the hot water washing device 20 into a lubrication device, and a secondary grip for transferring a material that is raised after being immersed in the lubrication processor 30 ( 63b); tertiary grips 63c and 63d for transferring to the next process; grip blocks 66 for fixing each grip; and up and down rails for guiding the vertical movement of the grip block 66; 68); a driving device 65 for vertically driving the grip block 66; a transfer block 67 for supporting each component constituting the transfer 60; and an upper guide rail 57 It is composed of a drive unit 61 for driving the transfer block 67 forward and backward.

Each grip is characterized in that arranged in a single row or a plurality of rows in a single grip block 66, the vertical motion is simultaneously moved by a single vertical drive device 65 along a pair of two pairs of upper and lower rails 68 It is characterized by one.

As the material raised after lubrication is coated with extra lubricant flowing down the surface, the lubricant may be accumulated or abnormally thick on a specific surface of the material. It is characterized by having a tilting device.

The lubricator 30 is largely composed of a lubrication tank 40 accommodating a water-soluble lubricant and a heating tank 31 for heating the lubrication tank 40 with a bath. An embodiment is illustrated in FIGS. 7 and 8.

Since the water-soluble lubricant contains a certain amount of solid lubricant, the life of the heater 33 or the heat source due to the solids attached to the surface of the heat source in contact with the lubricant when directly heated by the heater 33 or another heat source without heating in a hot bath. This should be significantly reduced or the thermal efficiency is significantly reduced, so it must be heated in a bath.

Accordingly, the water 4 is accommodated in the heating tank 31 for heating the lubrication tank 40 in the bath, and a heater 33 for directly heating the water 4 is provided at one side, and the heating tank ( 31) Install the thermal insulation material 32 to reduce the heat transfer to the outside.

The lubrication tank 40 includes a lubrication tank 41 containing a water soluble lubricant 3, a tilting device 80 for immersing the material 1, and a primary stirrer 43a for stirring the water soluble lubricant. And, Lubrication auxiliary tank 42 provided on one side of the lubrication tank 41, Secondary stirrer 43b for stirring the water-soluble lubricant (3 ') accommodated in the lubrication auxiliary tank 42; It consists of a circulation pump 34 and a filter 35 for circulating the water soluble lubricant 3 'in the lubrication auxiliary tank to the lubrication tank.

Here, the tilting device 80 includes a material seating portion 88 for accommodating the material 1 in more detail; a support 84 for its support; and a lift block for fixing the support 84. 83); a guide shaft 82 and a guide block 82 'for guiding its up and down driving; a drive device 81 for up and down driving of the lift block 83; and a lubrication tank 41 Cam block 86 provided on one side; Link 85 connected to the material seating portion 88 to the left and right rotational movement in accordance with the guidance of the cam block 86 ;, At the end of the link 85 It is composed of a roller 87 connected to move along the guide surface configured in the cam block (86).

The material seating portion 88 and the supporter 84 configured in the tilting device 80 are configured in a row or a plurality of rows as shown in FIG. 8, and can be changed to be suitable for mass production according to material type and size. do.

The material seating portion 88 and the cam block 86 configured in the tilting device 80 may be replaced according to the size and shape of the material for cold forging, so that the structure may be replaced with a simple operation.

As illustrated in FIG. 9, the raw materials 1a and 1b having the deep holes 101 have a path P1 ′ formed in the cam block 86 having a guide surface suitable for the vertical movement P1 of the lift block 83. ), Which prevents lubrication due to air being filled in the deep hole 101, and the materials 1c and 1d having the shallow grooves 102 and the materials 1e and 1f having flat surfaces on one or both sides. ) Follows a path P2 'configured in the cam block 86' having a guide surface suitable for the vertical motion P2 of the lift block 83, so that even if the air escapes or the air remains from the shallow groove 102, It is characterized in that the function to be applied evenly.

And excessive lubricant on the material (1) passing through the lubrication processor 30 flows down sequentially while passing through the material seating portion (42b) installed on the upper portion of the lubrication tank (40), 60 to 70 ℃ The raw material (1) is heated to a fine temperature due to immersion during the process and lubrication process of 20-30 seconds, but is still maintained at 55-65 ℃, so it is contained in the lubricant film of appropriate thickness attached to the material. The water component is evaporated a lot within 10 ~ 20 seconds due to the heat of the material itself is put into the drying apparatus 70, so the loss of lubricant and contamination of the drying apparatus is characterized by almost negligible.

The drying device 70 includes a drying booth 71, a material conveying conveyor 72, a blower 73 for quickly drying a lubricant film, and a heating device 75 for generating hot air. It is configured, the heating device 75 for the generation of hot air is characterized in that it is controlled to be lubricated without applying depending on the ambient temperature conditions and the type of water-soluble lubricant.

The present invention can be applied to a lubricating process which is a pretreatment operation of a cold forging operation in place of a phosphate coating treatment facility.

1 is a schematic configuration diagram of a conventional rotary drum type lubrication treatment device

2 is a schematic configuration diagram of a conventional continuous conveyor type lubrication treatment device

Figure 3 is a typical cold forging water-soluble lubricating process chart

Figure 4 is a schematic configuration diagram of a cold forging lubricating treatment apparatus according to the present invention

Figure 5 is an exemplary view of the shape of the material to be processed in the lubrication treatment apparatus of the present invention

6 is a cause of defective products and lubricant waste during water-soluble lubricant treatment

7 is a detailed configuration of the water-soluble lubricating treatment apparatus for cold forging of the present invention

8 is a configuration diagram of a tilting device of the water-soluble lubricant treatment device for cold forging of the present invention

9 is a conceptual view of the operation of the tilting device of the present invention

[Description of Drawings]

1, 1a-1f. Material 2, 2a, 2b. Tax payment

3, 3 '. Grease 4. Water

5. Bubble 10. Draw-in device

20. Washing device 20 '. Auxiliary tank

21.Tangse tank 22.Insulation material

23. Transfer conveyor 24. Heater

25. Detector 28. Pump

30. Lubricator 31. Heating tank

32. Insulation material 33. Heater

34. Circulation pump 35. Filter

40 Lubrication Tank 41.Lubrication Tank

42. Lubrication auxiliary tank 43a. Primary stirrer

43b. Secondary Agitator 50a. Primary feeder

50b. Secondary feeders 51a, 51b. Drive

52. Round bars 53a, 53b. Grip

54a, 54b. Grip blocks 55a, 55b. Drive

56a, 56b. Feeder block 57. Guide rail

60. Transfer 61. Drive

63a. 1st grip 63b. 2nd Grip

63c, 63d. 3rd Grip 65. Drive

66. Grip Block 67. Transfer Block

68. Upper and lower rail 70. Drying device

71. Dry booth 72. Conveyor for material transfer

73. Blower 75. Heating

80. Tilting device 83. Lift block

84. Support 86, 86 '. Camblock

88. Material seat 101. Deep hole

102. Shallow Groove

Claims (8)

In the apparatus for treating a water-soluble lubricant to the material for cold forging, Drawing device 10 for introducing the material 1 ;, A primary feeder 50a for introducing the introduced material into the hot water washing device 20; Hot water washing device 20 for heating the input material and removing foreign substances on the material surface; Secondary feeder (50b) for taking out the material from the hot water washing device; Transfer 60 installed on top of the lubricator 30 to transfer the material passed through the hot water treatment process (S2) or the lubricator 30; A lubrication processor 30 for lubricating the material which has undergone a hot water washing process; Drying apparatus 70 for drying the lubricating film of the material passed through the lubricator; A transfer conveyor 23 which is completely locked in the hot water washing device 20 to minimize heat transfer to the outside of the hot water tank 21 and is responsible for the one-way transfer of the material; Water-soluble lubricating treatment device for cold forging comprising a sensing device 25 provided on one side of the hot water tank 21 to detect the position of the material of the upper portion of the conveying conveyor (23). According to claim 1, wherein the hot water tank (21) is provided to overflow the hot liquid to the liquid for removing the floating contaminants introduced into the hot water device (20); It is provided with an auxiliary tank for accommodating the liquid washing liquid 2b overflowed on one side of the liquid washing tank 21, and having a one-way pump 28 to circulate the liquid washing liquid contained in the auxiliary tank to the liquid washing tank 21. Water-soluble lubricating treatment device for cold forging. delete A heating tank (31) installed outside the lubrication tank (41) for containing the water-soluble lubricant (3) of the lubricator (30), for heating the lubricant (3) with a bath; Water-soluble lubricating treatment device for cold forging, characterized in that the heater 33 for heating the water (4) contained in the heating tank is provided. The material according to claim 1 or 4, further comprising a tilting device (80) installed in the lubrication tank (41) for accommodating the water-soluble lubricant (3) of the lubrication processor (30) to accommodate the material (1). Water-soluble lubrication treatment device for cold forging, characterized in that to control the quality of the lubrication treatment. The lubrication tank according to claim 1 or 4, wherein the flow of the surface of the water-soluble lubricant 3 including the floating contaminants of the lubrication processor 30 and the lubricant foam flows through the holes provided on one side. 41); A lubrication auxiliary tank 42 for accommodating the overflowed water soluble lubricant 3 '; A filter 35 and a circulation pump 34 for purifying and circulating the water-soluble lubricant 3 'of the lubrication auxiliary tank to the lubrication tank; Water-soluble lubrication treatment device for cold forging, characterized in that the stirrer (43a, 43b) for preventing the water-soluble lubricant contained in the lubrication tank 41 and the lubrication auxiliary tank (42) to be tangled or precipitated. A material seating part 88 for accommodating the material 1; A support 84 for its support; A lift block 83 for fixing the support 84; A guide shaft 82 and a guide block 82 'for guiding its up and down driving; A driving device 81 for vertically driving the lift block 83; A cam block 86 provided at one side of the lubrication tank 41; A link 85 connected to the material seating portion 88 to perform left and right rotational movements according to the guide of the cam block 86; It is connected to the end of the link 85 is composed of a roller 87 moving along the guide surface configured in the cam block 86 is characterized in that it can generate the required tilting motion only by the drive device 81 for vertical drive Water-soluble lubrication treatment device for cold forging. The method according to claim 1 or 7, Water-soluble lubrication treatment device for cold forging, characterized in that the lubrication of a large amount of material in succession by arranging a plurality of rows in the material seating portion and the grip in each direction.

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