JP3361876B2 - Double-sided beveling machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided chamfering device for flattening both sides of a strip material made of various metals.

[0002]

2. Description of the Related Art When a metal strip material is manufactured by hot rolling, an oxide film or dirt is generated on both sides of the strip material.
2. Description of the Related Art A double-sided surface abrading device for abrading both surface layers of a strip material has been conventionally used for the purpose of removing an oxide film and dirt.

As shown in FIG. 10, this type of double-sided surface grinding machine includes a plate material feeding mechanism (not shown) for continuously running the plate material T and a cylindrical cutting blade having a cylindrical outer peripheral surface. Lower and upper scalping cutters 1 and 2 formed with a large number of
A drive mechanism (not shown) that rotates the scalping cutters 1 and 2, first and second pressing rollers 3 and 4 that sandwich the plate material T between the scalping cutters 1 and 2, and the respective scalping cutters 1 and 2 Entry-side guides 5 and 6 and exit-side guides 7 and 8 that support the plate material T adjacent to the flat surface cutting location
It has and.

On the upstream side of the inlet guides 5 and 6, in order to prevent seizure of the inlet guides 5 and 6 and the strip material T, the cutting oil is atomized with compressed air and sprayed onto the strip material T. Spray nozzles 9 and 10 are provided respectively. The reason why the cutting oil is atomized and sprayed in this way is that
If a large amount of liquid is sprayed on the chips, chips generated when the plate material T is flatly cut by the scalping cutters 1 and 2 get wet with the cutting oil, and the cutting oil mixed when the chips are collected and redissolved. This is because there is a risk of steam explosion.

[0005]

However, in the above-mentioned conventional apparatus, when the soft copper alloy is machined, the machinability is poor, and the surface of the plate material after the plane cutting is satisfactorily raised. There was a problem that flatness and smoothness could not be obtained. In addition, chips may adhere to the plate material T, or fine powder such as oxide scale generated during cutting may be accumulated on the inner wall surface of the chamfering device and fall into a lump form on the plate material T. There is a problem that chips and deposits are rolled together with the sheet material T in a post-process to cause defects, causing defective products and deteriorating the yield. Further, due to insufficient lubrication, seizure between the guides 5, 6, 7 and 8 and the strip material T is likely to occur, and a seizure trace may occur on the surface of the strip material T.

The present invention has been made in view of the above circumstances, and improves the machinability by a scalping cutter, prevents the occurrence of defects in the strip material and prevents the seizure between the inlet side guide and the strip material while enabling the reuse of chips. It is an object of the present invention to provide a double-sided surface grinding device capable of achieving the above.

[0007]

In order to solve the above-mentioned problems, a double-sided surface grinding apparatus according to the present invention comprises a plate material feeding mechanism for moving a plate material in its longitudinal direction and a large number of cutting blades on the outer peripheral surface. Is formed and a lower scalping cutter arranged with its axis oriented in the width direction of the strip so that the lower surface of the strip can be planarly cut by these cutting blades, and a large number of cutting blades are formed on the outer peripheral surface. An upper side scalping cutter whose axis is arranged in the width direction of the strip material so that the upper surface of the strip material can be flatly cut by these cutting blades, and a cutter driving mechanism for rotationally driving each of the scalping cutters. ,
By the oil supply means that supplies cutting oil to the cutting point by each scalping cutter, a chip collection mechanism that opens at one end near each scalping cutter and suctions and collects the chips and cutting oil generated by each scalping cutter, and this chip collection mechanism And a separation mechanism that separates chips and cutting oil from the recovered material.

[0008]

In the double-sided surface grinding apparatus according to the present invention, while the cutting oil is supplied in a liquid state from the oil supply means to the cutting portion of the strip material,
The chips and cutting oil generated by cutting are sucked and collected by the chip collecting mechanism, and further, the chips and cutting oil are separated from the collected matter by the separating mechanism. Therefore,
Although it is possible to improve the machinability by the scalping cutter by using a relatively large amount of liquid cutting fluid, it is possible to avoid the risk of steam explosion due to mixing of cutting oil when remelting chips. Furthermore, since it is possible to prevent chips and oxide scale deposits from adhering to the strip material by the cleaning effect of the cutting fluid, it is possible to significantly reduce the occurrence of defects in the strip material.

[0009]

1 and 2 are a side view and a plan view showing an embodiment of a double-sided surface grinding machine according to the present invention. First, the outline of the apparatus will be described. In the figure, reference symbol T is a long plate material made of metal such as copper, and is fed at a constant speed from a pre-process (not shown) while maintaining a substantially horizontal state. Plate material T
First, the pair of side cutters 20 cut and remove dirt and oxide films on both side surfaces. A dust suction duct 24 for sucking chips and cutting oil is arranged near each side cutter 20, and the chips and the like are sent to the chip collecting mechanism and the separating mechanism shown in FIG.

The strip material T is then set in two sets of feed rolls 26.
In the process of passing between the (sheet material feeding mechanism) and further between the lower scalping cutter 28 and the back roll 42, the lower scalping cutter 28 cuts the lower surface over the entire surface. Lower scalping cutter 28
A dust suction duct 40 (a part of the chip collecting mechanism) for sucking chips and cutting oil is arranged near the lower part of the chip, and the chips and the like are sent to the chip collecting mechanism and the separating mechanism shown in FIG.

The sheet material T whose lower surface has been cut passes between the two sets of feed rolls 44 (sheet material feed mechanism) and then passes between the upper scalping cutter 46 and the back roll 60. , The upper scalping cutter 46
The upper surface is flatly cut over the entire surface and then sent to the next step through between two sets of feed rolls 62 (plate material feed mechanism). A dust suction duct 58 (a part of the chip collecting mechanism) for sucking chips and cutting oil is arranged near the upper side of the upper sculpting cutter 46, and the chips and the like are sent to the chip collecting mechanism and the separating mechanism shown in FIG.

Next, the structure of each part will be described in detail. The side cutter 20 has a columnar shape, and a large number of spiral cutting blades are formed on the entire outer peripheral surface thereof. These side cutters 20 are arranged with their axes oriented vertically on both sides of the path of the plate material T, and are driven by a driving means (not shown).
Each is rotated in the direction of the middle arrow (a). The cutting liquid is sprayed from the upstream side in a liquid state to the cutting place by the side cutter 20 by a nozzle (not shown). Further, dust suction covers 22 are attached so as to surround each side cutter 20, and these dust suction covers 22 are connected to a dust suction duct 24.

The lower scalping cutter 28 and the upper scalping cutter 46 are each rotated about an axis by a driving means (not shown), and the rotation direction of the cutting blade is such that the cutting blade moves the plate material T in the direction opposite to the plate material traveling direction. The cutting direction is set. These scalping cutters 28,46
Each has a cutter body 150 having an elongated cylindrical shape as shown in FIG. 4, and mounting shaft portions 152 are formed at both ends of the cutter body 150. On the outer peripheral surface of the cutter body 150, a large number of grooves 154 are formed in parallel with each other in a spiral shape around the cutter axis. Further, the protrusions between the grooves 154 have a fixed surface on the front side in the cutter rotation direction. The elongated cutting tips 156 are fixed at intervals by brazing or the like.

The length L1 of the cutting edge portion of the cutting tip 156 and the separation distance L2 between the cutting tips 156 are factors that determine the shape of the chips, and according to the experiments by the present inventors,
From the viewpoint of facilitating suction and collection of chips, the length L of the cutting edge is
1 is 30 to 50 mm, more preferably 35 to 45 mm,
It has been found that the separation distance L2 is preferably 1.0 to 2.5 mm, more preferably 1.5 to 2.0 mm. Within the above range, the length of the chips and the curling shape are appropriate, and suction removal can be easily performed even when wet with cutting oil. In addition, in the conventional scalping cutter,
Usually, the length of the cutting edge portion of the cutting tip was set to about 25 mm, and the distance between the cutting tips was set to about 2.0 mm.

When a scalping cutter having the above dimensions is used, the cutter rotation peripheral speed by the cutter driving mechanism is 3
It is more preferable that the cutting amount by the cutter is set to 0.2 to 0.7 mm and the cutting amount is set to 00 to 600 m / min.
Under such cutting conditions, the thickness, length and curling shape of the chips become more appropriate, and the chips wet with cutting oil can be more easily suctioned and removed. However, the scalping cutter and the cutting conditions used in the present invention are not limited to the above range, and may be appropriately changed if necessary.

As shown in FIGS. 1 and 5, guide supports 30 and 34 are installed in parallel with the lower scalping cutter 28 at positions adjacent to the upstream and downstream sides of the lower scalping cutter 28, respectively. On the upper surfaces of the guide supports 30 and 34, the upper and lower surfaces thereof are opposed to the lower surface of the strip material T in parallel, and the elongated plate-shaped first inlet side guides 32 and the first strip-shaped guides 32 extending in the width direction of the strip material T are provided. The exit guides 36 are fixed. Further, as shown in FIG. 5, a dust suction cover 38 having an opening diameter over the entire length of the lower scalping cutter 28 is fixed between the guide supports 30 and 34, and the dust suction cover 38 is attached to the dust suction duct 40. It constitutes the tip.

As shown in FIGS. 5 and 7, the first inlet side guide 32 has an upper plate portion 32A, a lower plate portion 32B and an introducing portion 32C, and is located between the upper plate portion 32A and the lower plate portion 32B. A large number of guide rollers 64 made of metal or the like are rotatably mounted at regular intervals in the longitudinal direction of the shaft via a horizontal shaft 65. The upper end of each guide roller 64 protrudes from the upper surface of the upper plate portion 32A by a certain distance, and comes into contact with the lower surface of the plate material T and is driven to rotate to support the plate material T. .

Further, as shown in FIG. 7, the downstream end of the upper plate portion 32A has a cross-sectional shape projecting at an acute angle in the horizontal direction, and its upper surface is guided at regular intervals in the longitudinal direction. The convex portion 66 is formed. These guide protrusions 66
Is the same as that of the guide roller 64, and the guide protrusion 66
The upper end surface of the plate contacts the lower surface of the plate material T and rubs against it. The guide protrusions 66 are preferably formed of a metal material having excellent wear resistance. Specifically, the wear-resistant metal or ceramic such as Ni-based alloy or cemented carbide is melted, brazed or machined. It is preferable that the upper plate portion 32A is formed on the upper surface of the upper plate portion 32A so as to have a constant thickness by a method such as mechanically fixing.

In this embodiment, as shown in FIG. 6, the guide protrusions 66 are formed on the downstream sides of the guide rollers 64, respectively, but the present invention is not limited to this positional relationship. However, both may be formed so as to be displaced in the cutter axis direction.

Cutting oil injection nozzle holes 86 (a part of the oil supply means) are formed through the upper plate portion 32A adjacent to the upstream sides of the respective guide protrusions 66. Further, the lower plate portion 32B is provided with a liquid supply passage 84 for communicating the cutting oil injection nozzle holes 86 with each other, and the liquid supply passage 84 is formed.
Liquid supply passages 82 extending from the liquid supply passages 80 are formed, and liquid supply pipes 80 leading to an oil supply device (not shown) are further provided at end portions of the liquid supply passages 82.
Are connected. As a result, when cutting oil is sent from the oil supply means, the cutting oil is jetted toward the lower surface of the strip material T from all the cutting oil injection nozzle holes 86 in a liquid state.

From the guide convex portion 66 to the cutting oil injection nozzle hole 8
The distance L3 to 6 is 10 to 30 mm, more preferably 1
It is desirable to be 5 to 25 mm. If it is farther than 30 mm, the cutting oil jetted from the cutting oil jet nozzle hole 86 becomes less likely to flow between the guide convex portion 66 and the strip material T, and the seizure prevention effect between the guide convex portion 66 and the strip material T is obtained. descend. On the other hand, when the distance is closer than 10 mm, the distribution of the cutting oil attached to the lower surface of the plate material T is unevenly distributed, and the cutting oil is not evenly distributed between the guide projections 66 and the plate material T.

Further, exemplifying respective dimensions suitable for supplying cutting oil uniformly and sufficiently between the guide convex portion 66 and the plate material T, as shown in FIG. 6, the width of the guide convex portion 66 is as shown in FIG. W is 30 to 40 mm, and the length L4 of the guide protrusion 66 is 60.
~ 70 mm, the pitch P of the guide protrusion 66 is 50 to 65 m
It is about m. However, the present invention is not limited to this range and may be appropriately changed as necessary.

As shown in FIG. 5, the first output side guide 36 also has the same structure as the guide roller 64 in the first input side guide 32, and the guide roller 68 is rotated by the shaft 69 at regular intervals in the longitudinal direction. It is supported freely. No guide protrusion is formed on the upper surface of the upstream end of the first outlet guide 36.

Unlike the first inlet side guide 32, the first outlet side guide 36 is not provided with a cutting oil injection nozzle hole which is open on the upper surface thereof. Instead, as shown in FIGS. 6 and 7, a large number of nozzle holes 71 are formed on the surface facing the lower sculpting cutter 28, the nozzle holes 71 opening toward the flat-cutting portion of the plate material T, and the nozzle holes 71 are formed. A liquid supply path (not shown) for supplying cutting oil is formed in 71.
Then, the cutting oil is ejected from the nozzle hole 71 to supply oil to the lower scalping cutter 28.

On the other hand, as shown in FIG.
An upper fixed frame 78 is installed above 2, and an electric reduction screw 75 is provided at the center of the upper fixed frame 78. With the electric reduction screw 75, a roll support body 43 that rotatably supports the back roll 42 is provided. It is designed to be raised and lowered. The upper fixed frame 78 is also provided with a set of electric screw down screws 77. On the other hand, at a position adjacent to the upstream side and the downstream side of the back roll 42, the mounting base 72 is provided along the back roll 42.
Are arranged respectively, and the hydraulic cylinders 7 are attached to the respective mounting bases 72.
6 is attached upward, and the screws 76A of the electric screw-down screws 77 are connected to these rods. The back-roll 42 and each guide roller 74 are simultaneously moved up and down by the electric screw-down screws 75 and 77. Further, the contact pressure of the guide roller 74 with respect to the plate material T can be adjusted by each hydraulic cylinder 76.

A guide roller 6 is provided on the lower surface of each mounting base 72.
The guide rollers 74 are rotatably mounted at positions facing the guide roller 68 and the guide rollers 68 with the plate material T interposed therebetween. Then, the guide rollers 64, 7
4 and between the guide rollers 68, 74.
Is sandwiched between.

In this embodiment, the upper scalping cutter 46 is also reversed in the vertical position except that the guide support 30, the first inlet guide 32, the guide support 34, and the first outlet side are provided. A guide support 48, a second inlet side guide 50, and a guide support 5 having the same structures as the guide 36, the dust suction cover 38, and the dust suction duct 40, respectively.
2, a second outlet side guide 54, a dust suction cover 56, and a dust suction duct 58 are provided. Back roll 60
Are supported by providing a supporting structure similar to that of the back roll 42 shown in FIG. 5 upside down.

Regarding the second inlet side guide 50, unlike the first inlet side guide 32, the cutting oil injection nozzle hole 86 is not formed, and the strip material T is provided on the upstream side of the second inlet side guide 50. A configuration may be adopted in which an oil supply nozzle for dropping cutting oil in a liquid state is formed on the upper surface. The cutting oil dropped on the upper surface of the strip material T is supplied to the sliding portion between the second inlet side guide 50 and the strip material T while remaining on the strip material T, so that the first inlet guide 32
This is because a shortage of cutting oil is less likely to occur than in.

On the other hand, in this embodiment, the chip collecting mechanism shown in FIG. 3 is provided in total of three systems corresponding to the side cutter 20, the lower scalping cutter 28 and the upper scalping cutter 46, respectively. In this way, three systems are provided so that the chips generated by the side cutter 20 and the scalping cutters 28 and 46 are separately collected, and the chips generated by the scalping cutters 28 and 46 are generated by the side cutter 20. This is because each chip is inserted (or wrapped) into a press machine 116 described later so that the chip can be pressed. By pressing in a sandwich shape in this manner, short chips generated by the side cutter 20 can be prevented from falling off the press body, and the press body can be easily treated.

As shown in FIG. 3, each chip collecting mechanism of this embodiment includes a dust collecting duct 24, 40, 58 and a dust collecting duct 100 connected to any of the dust collecting ducts 24, 40, 58. , The first cyclone separator 102 having the dust suction duct 100 connected to the inlet, and the first cyclone separator 102.
The second cyclone separator 1 whose inlet is connected to the outlet of the cyclone separator 102 via a duct 126.
28, and a suction blower (suction means) (not shown) connected to the outlet of the second cyclone separator 128 via a duct 134.

The cyclone separators 102 and 128 may be well-known ones, and the air containing chips and cutting oil that has flowed in from the inlet produces a rotary flow inside thereof and is discharged from the outlet. In the process, chips and cutting oil are separated from the air by the centrifugal force, hit the inner wall, and further accumulate at the lower end. Note that it is not impossible to collect chips and cutting oil only with the first cyclone separator 102.

An alternate switching damper 104 is attached to the lower end of the first cyclone separator 102. The alternate switching damper 104 includes two levers 106 and 108.
When the levers 106 and 108 are opened, the collected substances accumulated on the levers fall down. In addition, the lever 106,
If at least one of 108 is closed, the lower end of the first cyclone separator 102 is hermetically sealed. Therefore, by alternately opening and closing the levers 106 and 108, the first cyclone separator 10
The collected material by 2 is discharged from the lower end of the alternate switching damper 104.

A screen vibrating mechanism (separating mechanism) 110 is arranged below the alternate switching damper 104. The screen vibrating mechanism 110 has a screen 111 composed of a wire net or the like arranged substantially horizontally, and by vibrating the screen 111, the chips on the screen 111 are conveyed rightward in the drawing. In the process, the cutting oil contained in the collected material passes through the screen 111, drops downward, and collects in the oil recovery container 122. A pump 120 is provided in the oil recovery container 122, and the pump 120 sends the oil recovery process to an oil treatment process (not shown).

A discharge portion 112 is formed at the end of the screen vibrating mechanism 110 in the conveying direction. From there, the chips fall into a weighing hopper 114, and after a certain amount is stored therein, when the bottom is opened, it is pressed through a chute 115. It is designed to fall on the aircraft 116. In this embodiment, as described above, the chips generated by the scalping cutter 28 (or 46) are first charged into the press machine 116, and then the chips generated by the side cutter 20 are charged, and further, the scalping cutter 46 (or The chips generated in step 28) are added. The press machine 116 uses the hydraulic cylinder 124 to move the movable plate 11
8 is moved to compress the chips thrown into the press machine 116 in three layers to solidify them into a rectangular parallelepiped. If there is no problem of collapse of short chips, each chip may be collected and pressed in a mixed state.

On the other hand, a dust collecting hopper 130 is attached to the lower end of the second cyclone separator 128, and the dust collecting hopper 130 seals airtightly.
Fine chips, oxide scales, cutting oil, etc. that could not be completely separated in the first cyclone separator 102 are collected in the dust collecting hopper 130. Dust collection hopper 13
The collected matter accumulated in 0 is discarded in the dust box 132 at appropriate time.

According to the double-sided surface abrader having the above structure,
By the oil supply means including the cutting oil injection nozzle hole 86 and the nozzle hole 71, the cutting oil is supplied to the cutting portion of the strip material T in a liquid state, while the chips and the cutting oil generated by the cutting are sucked into the dust suction ducts 24, 40. , 58, 100 and the first cyclone separator 102 to collect by suction,
The screen vibration mechanism 110 separates chips and cutting oil from the collected material. Therefore, by using a relatively large amount of liquid cutting fluid, it is possible to avoid the risk of steam explosion due to mixing of cutting oil at the time of remelting chips, despite improvement in machinability due to the scalping cutter.
The problems of conventional devices can be solved at once. Further, after the strip material T is once wetted with the cutting fluid, the cutting oil is sucked and removed from the strip material T, so that the effect of cleaning with the cutting oil is obtained.
It is possible to prevent chips, oxide scale deposits, and the like from adhering to the plate material T, and it is possible to significantly reduce the occurrence of defects in the subsequent process.

Further, the first and second units connected in series are two units.
Since the cyclones separators 102 and 128 remove chips and cutting oil from the inhaled air by centrifugal force, the running cost is low and the exhaust gas can be highly cleaned. Moreover, since the cutting oil is separated while the chips are conveyed by the screen vibrating mechanism 110, the separation efficiency can be improved.

Further, in this embodiment, the first inlet side guide 32 adjacent to the upstream side of the lower sculpting cutter 28 is provided.
Since a large number of guide protrusions 66 that come into contact with the plate material T are formed on the above, and a cutting oil injection nozzle hole 86 is formed so as to be adjacent to the upstream side of each guide protrusion 66, these cutting oils are formed. By ejecting the cutting oil in a liquid state from the injection nozzle hole 86, the cutting oil adheres to the lower surface of the sheet material T as shown in FIG. 8 before it spreads over a wide area and does not drip from the sheet material T. Immediately after that, it flows into between the guide convex portions 66 and the strip material T. Therefore, since the cutting oil is effectively supplied, it is possible to prevent the seizure between the guide convex portion 66 and the plate material T at least when the consumption amount of the cutting oil is relatively small.
Further, it is possible to improve the machinability by the lower scalping cutter 28, and it is possible to improve the cleanliness and flatness of the finally obtained sheet material T.

The present invention is not limited to the above-mentioned embodiment, and the structure may be changed as necessary. For example, instead of the screen vibrating mechanism 110 described above,
It is also possible to employ the centrifugal separator 140 as shown in FIG. The centrifuge 140 has a cylindrical drum 142 whose axis is inclined.
One end of 2 is rotatably supported by a bearing 150 via a shaft 148, and the other end is supported by a motor 1 via a shaft 147.
It is rotated at 46. The outer peripheral wall of the drum 142 is formed of a screen such as a wire mesh, and allows only cutting oil to pass through without passing chips.

The collected material discharged from the lower end of the alternate switching damper 104 is put into the drum 142 through the upper opening of the drum 142 and is gradually moved downward while rotating as the drum 142 rotates. From the lower end of the drum 142, it falls onto the weighing hopper 114 described above.

On the other hand, a cylindrical cutting oil recovery container (cutting oil recovery means) 152 so as to surround the outer periphery of the drum 142.
Are provided coaxially. The cutting oil collecting container 152 receives and collects the cutting oil scattered from the drum 142, and a discharge port 154 is formed at the lower end thereof.
The cutting oil that drops from the discharge port 154 is stored in the receiver 156 and sent to an oil treatment process (not shown) by the pump 158.

If such a centrifugal separator 140 is adopted, the cutting oil is removed by centrifugal force, so that the separation efficiency can be further improved as compared with the screen vibrating mechanism 110 described above, so that re-dissolution of chips, It is possible to further facilitate reuse.

[0043]

As described above, in the double-sided surface grinding apparatus according to the present invention, the cutting oil is supplied in a liquid state from the oil supply means to the cutting portion of the strip material, while the chips and cutting oil generated by cutting are supplied. The chips are sucked and collected by the chip collecting mechanism, and further the chips and the cutting oil are separated from the collected material by the separating mechanism. Therefore, although a relatively large amount of liquid cutting fluid can be used to improve the cutting performance by the scalping cutter, it is possible to avoid the risk of steam explosion or the like due to mixing of cutting oil when remelting the chips. Furthermore, since it is possible to prevent chips and oxide scale deposits from adhering to the strip material by the cleaning effect of the cutting fluid, it is possible to significantly reduce the occurrence of defects in the strip material.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a double-sided surface grinding device according to the present invention.

FIG. 2 is a plan view of the device.

FIG. 3 is a side view showing a chip collecting mechanism and a separating mechanism of the device.

FIG. 4 is a plan view of a scalping cutter used in the apparatus.

FIG. 5 is a side sectional view showing a structure around a lower scalping cutter.

FIG. 6 is a plan view showing a structure around a lower scalping cutter.

FIG. 7 is a side sectional view showing a structure of a first inlet side guide.

FIG. 8 is an enlarged cross-sectional view of a cutting oil injection nozzle hole and a liquid supply passage.

FIG. 9 is a plan view showing a centrifuge as a separation mechanism in another embodiment of the present invention.

FIG. 10 is a side view showing a conventional double-sided surface grinding device.

[Explanation of symbols]

T Plate material 20 Side cutter 24, 40, 58, 100 Dust suction duct (part of chip collecting mechanism) 26, 44, 62 Feed roll (plate material feeding mechanism) 28 Lower scalping cutter 32 1st entry side guide 36 1st exit side guide 38,56 Dust absorption cover (part of chip collection mechanism) 42,60 Back roll 46 Upper side scalping cutter 50 2nd entrance side guide 54 2nd exit side guide 66 Guide convex part 80,82,84 Cutting oil Supply path (part of oil supply means) 86 Cutting oil injection nozzle hole (part of oil supply means) 102 First cyclone separator (part of chip recovery mechanism) 104 Alternate switching damper 110 Screen vibration mechanism (separation mechanism) 116 Press machine 122 Oil recovery containers 126, 134 Duct 128 Second cyclone separator (part of chip recovery mechanism) 130 Dust collection hopper 150 Cutter body 156 Cutting tip

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI B23Q 11/00 B23Q 11/00 U 11/10 11/10 A (72) Inventor Noriyuki Iwabuchi 7-8128, Ogimachi, Aizuwakamatsu, Fukushima Prefecture Mitsubishi Shindoh Co., Ltd. Wakamatsu Works (72) Inventor Koichi Mizushita 128-7 Ogimachi, Aizu-Wakamatsu City, Fukushima Prefecture Mitsubishi Shindoh Co., Ltd. Wakamatsu Works (56) Reference JP-A-54-11587 (JP, A) Special Kai 54-139180 (JP, A) JP 7-276125 (JP, A) Actual Kai 4-68019 (JP, U) Actual 61-111511 (JP, U) JP 62-36732 ( JP, B2) S. 34-13493 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B23C 3 / 13,5 / 04,9 / 00 B01D 33/06 B23Q 11 / 00,11 / 10

Claims (7)

(57) [Claims] 1. A plate material feeding mechanism for running a plate material in the longitudinal direction thereof, and a number of cutting blades formed on an outer peripheral surface thereof so that the lower surface of the plate material can be flatly cut by these cutting blades. A lower scalping cutter arranged with its axis oriented in the width direction of the strip, and a large number of cutting blades formed on the outer peripheral surface of the strip so that the upper surface of the strip can be planarly cut by the plate. An upper side sculpting cutter arranged in the width direction of the strip, a cutter driving mechanism that rotationally drives each of the sculpting cutters, an oil supply unit that supplies cutting oil to a cutting point by each sculpting cutter, and each sculpting cutter. A chip collection mechanism that suctions and collects the chips and cutting oil generated by each scalping cutter with one end open in the vicinity, and the chips and cutting oil are separated from the collected materials by this chip collection mechanism. That includes a separation mechanism, the planar cutting portion of the sheet-metal strip material according to the respective skull ping cutter
Adjacent to the upstream side of the
An entrance side guide that abuts is provided, and at least the entrance side guide that abuts the lower surface of the strip member has a plate.
Guide ridges that come into contact with the lower surface of the strip are placed in the width direction of the strip.
A plurality of parts are formed with a space between them, and
For spraying cutting oil to the strip material on each upstream side
Cutting oil injection nozzle is provided, and these cutting oil injection
A cutting oil supply passage is formed to supply cutting oil to the nozzle.
Sided surface grinding apparatus characterized by being. 2. The chip recovery mechanism is connected to a dust suction duct having one end opened near each of the sculpting cutters, a cyclone separator having an inlet connected to the other end of the dust suction duct, and an outlet of the cyclone separator. The double-sided chamfering apparatus according to claim 1, further comprising: suction means. 3. The chip collecting mechanism includes a dust collecting duct having one end open near each of the sculpting cutters, a first cyclone separator having an inlet connected to the other end of the dust collecting duct, and the first cyclone separator. The double-sided chamfering apparatus according to claim 1, further comprising: a second cyclone separator whose outlet is connected to the outlet, and suction means connected to the outlet of the second cyclone separator. 4. The separation mechanism comprises a screen for receiving the collected material and a screen vibrating mechanism for separating cutting oil from the collected material by vibrating the screen to pass through the screen. The double-sided surface grinding device according to claim 1, 2, or 3. 5. The separation mechanism has an outer peripheral wall through which only cutting oil can pass, and a drum into which the recovered material is supplied, a drum rotating mechanism for rotating the drum, and a drum rotating mechanism arranged on the outer periphery of the drum. 4. A double-sided chamfering device according to claim 1, further comprising a cutting oil collecting means for collecting cutting oil scattered from the drum. 6. The cutting blade of the scalping cutter
Are arranged at regular intervals in the longitudinal direction of the cutting blade.
Each of them is composed of a large number of cutting tips
The length of the cutting edge per cutting tip is 30-50m
m is set as m, Claims 1, 2, 3, 4
And the double-sided surface abrader described in 5 . 7. The scallop by the cutter driving mechanism
The rotating peripheral speed of the ng cutter is 300 to 600 m / min.
7. The double-sided surface according to claim 6, which is set.
Shaving equipment .