JP4010555B2 - Wire drawing dry lubricant regenerator - Google Patents

Description

  The present invention relates to a wire drawing dry lubricant regenerator for regenerating a dry lubricant used for wire drawing of a metal wire.

  In a wire drawing machine, a metal wire is passed through a die to reduce the diameter to a target diameter. At this time, a dry lubricant, for example, a powdery lubricant such as a metal soap is used between the die and the wire. The lubricant is stored in a box provided in front of the die, and is attached to the wire by passing the wire through the box. In drawing wire, the function of this lubricant greatly affects the quality after drawing.

Since the lubricant is stored in the box as described above and used through the wire, it is partially changed into a carbonized solid by frictional heat generated during wire drawing. That is, the lubricant loses the function of the lubricant and grows as a carbonized solid because of the frictional heat generated when the wire is running and the frictional heat generated during wire drawing. The carbonized solids grown in this manner hinder adhesion to a soft wire during wire drawing. Moreover, the iron powder adhering to the wire used as a raw material and the iron powder generated at the time of wire drawing are mixed in the lubricant.
Since carbonized solids and iron powder in such lubricants cause poor lubrication, if carbonized solids are generated to some extent, they should be replaced together with a lubricant having a lubricating function at that time. Is required.

  It is desirable to recycle and reuse the used lubricant. Conventionally, the operator performs sorting by screening through a sieve. The iron powder is removed by putting a magnet in the lubricant and adsorbing it.

There is a centrifuge as an apparatus for regenerating the wire drawing lubricant. In addition, an in-line type has been proposed in which a lubricant extruded from a wire drawing machine die by wire drawing pressure is pulverized and returned to a box in front of the die (Patent Document 1).
In addition, as an apparatus for removing iron powder in a general powder, a device in which a plurality of parallel bar-shaped permanent magnets are provided in the middle of a powder conveyance path has been proposed (for example, Patent Document 2). 3).
Japanese Patent Laid-Open No. 10-296322 JP 2003-103194 A Japanese Patent Laid-Open No. 2003-211022

The regeneration of the wire drawing lubricant is generally performed manually by the operator as described above. However, since the lubricant is in powder form, it is swollen to the surroundings and the working environment is very poor. Work will be done in it. Also, the efficiency is poor.
In this way, the regeneration work of the wire drawing lubricant is inefficient and becomes a work in a bad environment. Therefore, the regeneration is expensive, and many of them are treated as industrial waste without being reused. For this reason, the lubricant is used in the longest possible replacement cycle, which is an obstacle to the improvement of the wire quality.

Although there is the above-mentioned centrifuge as a device for automatically regenerating the lubricant, it becomes a large and expensive device, so it is not practical to install it in a general wire drawing factory.
In addition, the in-line type shown in Patent Document 1 needs to change the structure of the wire drawing machine itself, and since many in-line drawing machines provided in the factory will be provided with in-line type regeneration devices, The equipment cost is enormous and this is not realistic.

  The object of the present invention is that the structure is simple, can be manufactured at low cost, and can be regenerated efficiently, improving the environment of the regenerating work, improving the quality of the wire by shortening the replacement period of the lubricant, and waste lubrication that becomes industrial waste The object of the present invention is to provide a wire drawing dry lubricant regenerator that can be expected to reduce the amount of the agent.

A wire drawing dry lubricant regenerator according to the present invention is an apparatus for regenerating a dry lubricant used between a die and a wire rod of a wire drawing machine, and a hopper unit for containing a lubricant to be regenerated, and the hopper unit. The filter part that removes the solid matter in the lubricant by passing the lubricant supplied from the net through the mesh body, and the iron powder in the lubricant is removed with a magnet provided in the lubricant drop path that passed through this filter part And a regenerated lubricant recovery unit that recovers a regenerated lubricant that is a lubricant from which the iron powder has been removed.
According to this configuration, the solids in the lubricant to be regenerated are removed by the filter unit, and the iron powder in the lubricant from which the solids have been removed is removed by the iron powder removal unit. The removed reclaimed lubricant is collected by the reclaimed lubricant collecting unit. Therefore, solids and iron powder can be efficiently removed from the regenerated lubricant, and the cost for regenerating the lubricant can be reduced. This wire drawing dry lubricant regenerator is mainly composed of a hopper part, a filter part, and an iron powder removing part, and is installed separately from the wire drawing machine, so the structure is simple and the manufacturing cost is low. Can be reduced. Since the lubricant can be regenerated in a sealed space, the work space can be improved. Because it is possible to regenerate at a low cost with such a simple device, the implementation of regeneration is promoted and the quality of the wire is improved by reducing the amount of industrial waste made of wire drawing lubricant and shortening the replacement cycle of wire drawing lubricant. Can be expected.

In this invention, you may provide the fixed_quantity | quantitative_assay supply part which supplies the lubricant of a hopper part to a filter part by fixed quantity between a hopper part and a filter part.
When a fixed amount supply unit is provided, the lubricant to be regenerated can be supplied in a fixed amount to the filter unit, so that the lubricant can be supplied in accordance with the processing efficiency of the filter unit, and solid matter is removed efficiently by the filter unit. be able to.

In this invention, the filter unit is provided with a plurality of upper and lower stages of mesh bodies on a movable frame that is freely installed in the body frame in a substantially horizontal direction, and an inclined posture in which the mesh bodies of each stage are alternately inclined in the opposite direction. In this case, a swing drive mechanism for swinging the net body by moving the movable frame back and forth may be provided.
In the case of this configuration, since the mesh body is shaken by the swing drive mechanism, sieving is performed efficiently. In addition, since the nets are provided in a plurality of upper and lower stages and are alternately inclined, the solid matter that has been sieved and remains on the nets can be dropped downward from the net. The lubricant that has passed through the mesh body tends to be biased toward the upper inclined side on the lower mesh body, and is sieved while sliding downward on the net body. Therefore, efficient sieving using the entire surface of the net can be performed.

In the present invention, the iron powder removing unit is adjacent to an iron powder removing unit frame that is detachably installed on the main body frame, and a plurality of suction pipes that are provided side by side and parallel to the iron powder removing unit frame. A guide plate that is provided above the iron powder removing unit frame and is located above the suction pipes and guides the lubricant falling on the upper surface onto the suction pipes, and is removably inserted into the suction pipes. A permanent magnet may be used.
In the case of this configuration, when the lubricant passes through the iron powder removing unit, all the lubricant is guided on the suction pipe by the guide plate. Further, since the iron powder in the lubricant is adsorbed on the surface of the adsorption pipe by the magnetic force of the permanent magnet inserted into the adsorption pipe, the iron powder can be efficiently removed. The iron powder adsorbed on the adsorption pipe is pulled out of the main body frame, and the permanent magnet is extracted from the adsorption pipe so that no magnetic force acts on the adsorption pipe. It falls naturally from the surface. Therefore, it is possible to easily remove the iron powder adhering to the adsorption pipe.

  A wire drawing dry lubricant regenerator according to the present invention is an apparatus for regenerating a dry lubricant used between a die and a wire rod of a wire drawing machine, and a hopper unit for containing a lubricant to be regenerated, and the hopper unit. The filter part that removes the solid matter in the lubricant by passing the lubricant supplied from the net through the mesh body, and the iron powder in the lubricant is removed with a magnet provided in the lubricant drop path that passed through this filter part And a regenerated lubricant recovery unit that recovers the regenerated lubricant that is the lubricant from which the iron powder has been removed. Therefore, the structure is simple, low-cost manufacturing is possible, and efficient regeneration is possible. It can be done and the environment of the reproduction work is improved. Therefore, improvement of wire quality by shortening the replacement period of the lubricant and reduction of the amount of waste lubricant that becomes industrial waste can be expected.

  An embodiment of the present invention will be described with reference to FIGS. This wire drawing dry lubricant regenerator is a device for regenerating dry lubricant used between a wire drawing die and a wire rod, and is a front sectional view, a right side sectional view in FIGS. And a left side sectional view. This wire-drawing dry lubricant regenerator has a hopper part 1 for containing the lubricant A to be regenerated and a carbonized solid B in the lubricant A by passing the lubricant A supplied from the hopper part 1 through the mesh body 10. The filter part 2 except the iron part, the iron powder removing part 3 provided in the dropping path of the lubricant A that has passed through the filter part 2 to remove the iron powder C (FIG. 7) in the lubricant A, and the iron powder C And a regenerated lubricant recovery unit 4 that recovers the regenerated lubricant D, which is the lubricant removed.

  The hopper 1 is provided on the uppermost part of the main body frame 5. In the main body frame 5, the filter unit 2, the iron powder removing unit 3, and the regenerated lubricant collecting unit 4 are arranged in this order from the upper position to the lower position. The main body frame 5 has a caster 31 and a leg 32 with an adjuster for fixed installation at the lower end. On the left side surface of the main body frame 5, a control panel 13 for starting, controlling, and stopping the regenerator is provided. Between the hopper part 1 and the filter part 2, a fixed quantity supply part 6 for supplying the lubricant A of the hopper part 1 to the filter part 2 in a fixed quantity is provided.

As shown in the side view and the perspective view in FIGS. 4A and 4B, the fixed amount supply unit 6 closes the lubricant discharge path 1 a in the lubricant discharge path 1 a at the lower end of the hopper 1. It is comprised with the roller 7 installed so that rotation was possible sideways. A cutout portion 7 a extending in the axial direction is formed on the outer periphery of the roller 7. A certain amount (for example, 20 cm ³ ) of lubricant A filled in the notch 7 a is intermittently supplied to the filter unit 2 for each rotation of the roller 7. The roller 7 is rotationally driven by a variable speed motor 8 (FIGS. 2 and 3) provided on the upper part of the main body frame 4, and the supply amount of the lubricant A to the filter unit 2 is determined by the rotational speed. The number of rotations of the roller 7 can be controlled by the control panel 13 according to the processing state of the filter unit 2, and is set to, for example, 1.8 to 34 rpm.

  As shown in FIG. 1, the filter unit 2 includes a movable frame 9 that is installed on the main body frame 5 so as to be able to advance and retreat in a substantially horizontal direction, and is provided with a plurality of upper and lower net bodies 10 (here, three stages). The movable frame 9 is installed on the rail 12 via the roller 11, and can be moved forward and backward in the left-right direction in FIG. The movable frame 9 has a shape in which the front and rear surfaces of a space in which the net body 10 is provided in a plurality of stages are closed and the left and right surfaces are opened. Around the bottom of the movable frame 9, a guide frame portion 9 a is provided that is squeezed downward so as to guide the falling lubricant to the iron powder removing unit 3.

  The nets 10 at each stage are inclined so as to be alternately inclined in the left and right direction, and the inclination angle θ (FIG. 5) is about 3 to 6 °. Further, the mesh of the mesh body 10 is set so that the roughness gradually becomes finer from the upper stage to the lower stage. For example, the first-stage net 10 is 10 mesh, the second-stage net 10 is 14 mesh, and the third-stage net 10 is 18 mesh. Advancing / retreating of the movable frame 9 (advancing / retreating stroke is 40 to 50 mm, for example) is performed by a swing drive mechanism 14 provided on the left side of the main body frame 5. As a result, the mesh body 10 is shaken, and the carbonized solid B remaining on the mesh body 10 is discharged from the inclined lower end of the mesh body 10. The swing drive mechanism 14 includes a crank mechanism 15 connected to the movable frame 9 and a motor 16 that rotationally drives the crankshaft.

  On the left and right sides of the regenerated lubricant recovery unit 4 at the lower position of the main body frame 5 are solid material recovery units 17 and 17 for recovering the carbonized solid material B that is discharged from the inclined lower end of each mesh body 10 of the filter unit 2 and falls. Is provided. The regenerated lubricant collecting unit 4 and the solid material collecting unit 17 are formed of a box having an upper opening, and are disposed on the front side of the main body frame 5 so as to be drawn out. The regenerative lubricant recovery unit 4 and the solids recovery unit 17 are provided with handles 36 and 37. On the left and right sides of the filter unit 2, anti-scattering plates 33 and 33 that prevent the carbonized solid B falling from the net 10 at each stage from scattering are installed on three side surfaces excluding the side surface facing the filter unit 2. Further, at the lower end of the space surrounded by the scattering prevention plates 33, 33, there are provided narrowed rectangular tube-shaped guide members 34, 34 for guiding the falling carbonized solid B to the solid collection parts 17, 17. Yes.

  The iron powder removing unit 3 includes an iron powder removing unit frame 18 that is detachably installed on the main body frame 5, a suction pipe 19 that is provided side by side and parallel to the iron powder removing unit frame 18, and drops. The guide plate 20 guides the incoming lubricant to the suction pipe 19 and the permanent magnet 21 (FIG. 6) inserted in the suction pipe 19 so as to be detachable. The suction pipe 19 is made of stainless steel, for example. The iron powder removing unit frame 18 is formed of a rectangular frame that can be pulled out to the front side of the main body frame 5, and each suction pipe 19 is extended over both the left and right frame portions. A handle 35 is provided on the main body frame 5. The guide plate 20 is a member having a mountain-shaped cross section, and a plurality of guide plates 20 are parallel across the left and right frame portions of the iron powder removing unit frame 18 so as to be positioned above the adjacent suction pipes 19, 19. It is built in. A permanent magnet 21 is inserted into each suction pipe 19 so as to be freely inserted and removed as shown in FIG. Thereby, the iron powder in the lubricant guided to the adsorption pipe 19 is adsorbed on the surface of the adsorption pipe 19.

  The wire drawing dry lubricant regenerator is hermetically sealed from the outlet of the hopper unit 1 to the filter unit 2, the iron powder removing unit 3, the regenerated lubricant recovery unit 4, and the solid material recovery units 17 and 17. As shown, the body frame 5 is provided with a cover (not shown).

  Next, a description will be given of the regeneration process of the lubricant by the wire drawing dry lubricant regenerator having the above configuration. When the lubricant A to be regenerated is put into the hopper unit 1 and the roller 7 of the fixed amount supply unit 6 is rotated, the fixed amount of the lubricant A is supplied from the lubricant discharge path 1a of the hopper unit 1 to the filter unit 2. In the filter unit 2, the mesh body 10 at each stage is shaken by the forward / backward drive of the movable frame 9 by the swing drive mechanism 14, and the separation and separation of the carbonized solid B from the supplied lubricant A is performed by each mesh body 10. Is called. The solid body B having a large particle diameter is separated from the upper net 10 and the solid substance B having a small particle diameter is separated from the lower stage. The separated carbonized solid B is discharged from the inclined lower end of the net 10 of each stage and is recovered by the lower solid recovery unit 17.

  When the lubricant A ′ from which the carbonized solid B has been removed by the filter unit 2 passes through the iron powder removing unit 3, the iron powder remaining in the lubricant A ′ is removed. When the lubricant A ′ passes through the iron powder removing unit 3, as shown in FIG. 6A, all the lubricant A ′ is guided onto the suction pipe 19 by the guide plate 20, and the lubricant A ′ is contained in the lubricant A ′. Iron powder is efficiently adsorbed on the surface of the adsorption pipe 19 by the magnetic force of the permanent magnet 21 inserted into the adsorption pipe 19. In this way, the lubricant D from which the iron powder has been removed is recovered by the regenerated lubricant recovery unit 4.

  The iron powder C adsorbed to the adsorption pipe 19 of the iron powder removing unit 3 is drawn out by pulling the adsorption pipe arranging unit of the iron powder removing unit 3 forward from the main body frame 5 as shown in FIG. Collected in part 22. As shown in FIG. 7B, the iron powder is removed from the adsorption pipe 19 by pushing the push rod 23 into the adsorption pipe 19 to push out the permanent magnet 21 so that no magnetic force acts on the adsorption pipe 19. Thus, the iron powder is naturally dropped from the surface of the adsorption pipe 19.

Thus, according to this wire-drawing dry lubricant regenerator, the carbonized solid B in the regenerated lubricant A is removed by the filter unit 2, and the iron powder in the lubricant A ′ from which the carbonized solid B has been removed is removed. C is removed by the iron powder removing unit 3, and the regenerated lubricant D from which the carbonized solid B and the iron powder C are removed is collected by the regenerated lubricant collecting unit 4. Therefore, the carbonized solid B and the iron powder C are efficiently removed from the regenerated lubricant A, and the cost for regenerating the lubricant can be reduced. Since the lubricant can be regenerated in a sealed space, the work space can be improved.
In this embodiment, the filter unit 2 is provided on a movable frame 9 installed on the main body frame 5 so as to be able to advance and retreat in a substantially horizontal direction. Since the filter portion 2 is used as an inclined posture inclined in the direction, and the swing drive mechanism 14 is provided to swing the mesh body 10 by moving the movable frame 9 forward and backward, the carbonized solid matter B is efficiently removed by the filter portion 2. be able to.
Moreover, since it can reproduce | regenerate at low cost with such a simple apparatus, the improvement of wire quality by shortening the replacement period of a wire drawing lubricant can be anticipated.

  In the test results, 50 to 60% of the regenerated lubricant D was obtained from the regenerated lubricant A, and the removal rate of the iron powder C was 80% or more. Since the lubricant A can be regenerated in this way, it is possible to reduce the amount of industrial waste made of a wire drawing dry lubricant by 50 to 60% of the conventional amount.

The specifications of the wire drawing dry lubricant regenerator used in the above test will be described. The overall dimensions are a width of 900 mm, a depth of 450 mm, and a height of about 1300 mm, and the capacity of the hopper portion 1 is about 15000 cm ³ . The capacity of the cutout portion 7a of the roller 7 of the fixed amount supply unit 6 is 20 cm / 1 rotation, the rotation speed of the roller 7 is 20 rpm, the rotation speed of the swing drive mechanism 14 of the filter unit 2 is 100 rpm, and 1 time (15000 cm ³ ). The processing time is 40 minutes.
The mesh body 10 in the filter unit 2 is made of the above-described mesh, the first stage removes solids of 2 mm or more, the second stage removes solids of 1.3 mm or more, and the third stage removes solids of 0.9 mm or more. To do.
The operating condition was a repetitive operation for each cup of the hopper 1 and the removal of the adhering iron powder of the iron powder removing unit 3 was performed every time.
Table 1 shows the analysis results of the components of the regenerated lubricant.

1 is a front cross-sectional view of a wire-drawing dry lubricant regenerator according to an embodiment of the present invention. It is right side sectional drawing of the same reproducing machine. It is a left view of the same playback device. (A) is sectional drawing of the fixed quantity supply part in the same reproducing | regenerating apparatus, (B) is a perspective view of the roller which comprises an identification amount supply part. It is front sectional drawing which shows schematic structure of the filter part in the same reproducing | regenerating apparatus. (A) The elements on larger scale of the iron powder removal part in the reproduction machine, (B) is a sectional view of the adsorption pipe in the iron powder removal part. (A) is explanatory drawing of the collection | recovery operation | work of the iron powder removed by the iron powder removal part, (B) is explanatory drawing of the removal operation | work of the permanent magnet from the pipe for adsorption | suction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Hopper part 2 ... Filter part 3 ... Iron powder removal part 4 ... Regenerated lubricant collection | recovery part 5 ... Main body frame 6 ... Fixed quantity supply part 9 ... Movable frame 10 ... Net body 14 ... Swing drive mechanism 18 ... Iron powder removal part Frame 19 ... Adsorption pipe 20 ... Guide plate 21 ... Permanent magnet A ... Regenerated lubricant B ... Carbonized solid C ... Iron powder D ... Regenerated lubricant

Claims (4)

A device that regenerates dry lubricant used between a wire drawing die and a wire rod, and passes a hopper into which the lubricant to be regenerated is put, and the lubricant supplied from the hopper through a mesh body. The filter part excluding the solid matter in the lubricant by means of, the iron powder removing part provided in the lubricant dropping path that passes through the filter part to remove the iron powder in the lubricant with a magnet, and the removal of this iron powder e Bei a reproduction lubricant collecting unit for collecting the regeneration lubricant is lubricant, said filter unit, the movable frame installed retractably in a substantially horizontal direction in the body frame, the upper and lower plural stages of mesh member to provided, which has an inclined posture inclined in the opposite direction the mesh member of each stage alternately drawing dry characterized that you provided the swing drive mechanism shaking mesh member by advancing and retracting the movable frame Lubricant regenerator. Oite to claim 1, wherein the iron powder removing unit, and iron dust removing unit frame disposed freely drawer main body frame, a suction pipe that is provided a plurality of parallel side by side in the iron powder removing unit frame A guide plate that is located above the adjacent adsorption pipes and is provided on the iron powder removal unit frame and guides the lubricant falling on the upper surface onto the adsorption pipes, and can be inserted into and removed from the adsorption pipes. Wire drawing dry lubricant regenerator consisting of permanent magnets inserted in A device that regenerates dry lubricant used between a wire drawing die and a wire rod, and passes a hopper into which the lubricant to be regenerated is put, and the lubricant supplied from the hopper through a mesh body. The filter part excluding the solid matter in the lubricant by means of, the iron powder removing part provided in the lubricant dropping path that passes through the filter part to remove the iron powder in the lubricant with a magnet, and the removal of this iron powder A reclaimed lubricant collecting part for collecting a reclaimed lubricant as a lubricant, wherein the iron powder removing part is installed on the main body frame so as to be freely drawn out, and the iron powder removing part frame Next, a plurality of suction pipes arranged side by side and parallel to each other, and adjacent to each of the suction pipes, guide the lubricant provided on the iron powder removal unit frame and falling on the upper surface onto the suction pipe. Guide plate and the suction pipe Drawing dry lubricant reproducer characterized by comprising in a removably inserted permanent magnets. 4. The wire-drawing dry lubricant regenerator according to any one of claims 1 to 3, wherein a fixed amount supply unit is provided between the hopper unit and the filter unit for supplying a fixed amount of lubricant from the hopper unit to the filter unit. .

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