JP2002200520A - Cutting unit for thin plate material and cutting device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a setup work when a cutting position of a material W is set and changed. SOLUTION: This cutting unit 10 is formed by mounting a screw shaft 21 and a guide shaft 22 parallel with each other, a screw member 11 corresponding to first and second drive shafts 23 and 24, a slider 12, an upper rotary blade 13 and a lower rotary blade 14 on a common supporting frame 16. The cutting unit 10 transversely moves along the guide shaft 22 via the slider 12 by rotating and driving the screw member 11 via a traveling motor 15 and the cutting position of the material W by the upper rotary blade 13 and the lower rotary blade 14 can be arbitrarily set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a thin plate cutting unit capable of simplifying a setup operation, and a cutting device using the same.

[0002]

2. Description of the Related Art A thin plate such as a steel plate is cut by a shearing device.

A conventional shearing device is configured by mounting a plurality of sets of upper rotary blades and lower rotary blades on a common drive shaft. Therefore, the upper rotating blades and lower rotating blades are simultaneously rotated via a drive shaft while feeding the thin plate material between the upper rotating blades and the lower rotating blades. A plurality of positions of the material can be continuously cut through the blade and the lower rotary blade. The upper rotary blade and the lower rotary blade are fixed to the drive shaft via a boss member so as to be movable in the axial direction.

[0004]

According to the prior art, the upper rotary blade and the lower rotary blade must be individually positioned and fixed on the drive shaft in order to change the setting of the material cutting position. However, there is a problem that the setup work is extremely troublesome. This is because, in addition to the respective positions of the upper rotary blade and the lower rotary blade, in order to cut the material correctly, the overlap margin and the clearance between the two must be appropriately set.

Accordingly, an object of the present invention is to provide a thin plate material which can greatly simplify the setup work by mounting the upper rotary blade and the lower rotary blade on a common support frame in view of the problems of the prior art. And a cutting device using the same.

[0006]

According to a first aspect of the present invention, there is provided a slider for penetrating a guide shaft slidably and a screw shaft parallel to the guide shaft. Screw member, first and second parallel to the guide axis
An upper rotary blade and a lower rotary blade that respectively penetrate the drive shaft of
The gist is that a traveling motor for driving the screw member to rotate is mounted on a common support frame, and the upper rotary blade and the lower rotary blade have a margin for overlapping the outer peripheral portion for cutting the material.

The upper rotary blade may be arranged on the right side or on the left side of the lower rotary blade.

Further, a slope for guiding the cut material downward and upward can be provided behind the upper rotary blade and the lower rotary blade.

Further, an encoder may be connected to the traveling motor.

[0010] The structure of the second invention comprises a plurality of cutting units according to the first invention, a common guide shaft corresponding to each slider, a common screw shaft corresponding to each screw member, each upper rotary blade, and each lower rotary blade. The first and second drive shafts respectively correspond to the rotary blades, and the first and second drive shafts rotate the upper rotary blade and the lower rotary blade in conjunction with each other. And

[0011]

According to the structure of the present invention, the upper rotary blade and the lower rotary blade are mounted on a common support frame together with the slider, the screw member, and the traveling motor for the screw member. Therefore, the traveling motor drives the screw member in the forward and reverse directions to laterally move the support frame along the guide shaft, and can arbitrarily set and change the cutting position of the material by the upper rotary blade and the lower rotary blade. it can. Further, since the upper rotary blade and the lower rotary blade are mounted on the support frame through the first and second drive shafts, the relative positional relationship between the two remains unchanged even if the cutting position of the material is changed. Yes, there is no need to adjust the overlap margin or the clearance. The upper rotary blade and the lower rotary blade are driven to rotate at the same peripheral speed through the first and second drive shafts, thereby continuously cutting the material through the overlap margin of the outer peripheral portion. can do.

The upper rotary blade disposed on the right side of the lower rotary blade pushes down the right side of the cutting line of the material, and the lower rotary blade pushes up the left side of the cutting line to separate the cut material up and down.
The upper rotary blade can be arranged on the left side of the lower rotary blade to separate the cut material in the opposite direction. However,
Here, the cutting line of the material refers to the separation boundary line of the material corresponding to the cutting position of the material by the upper rotary blade and the lower rotary blade, and the right and left sides are the lower rotary blade when viewed from the material loading side. Relative position of the upper rotary blade.

If a slope is provided behind the upper rotary blade and the lower rotary blade, the cut material is guided through the slope and can be more reliably separated into an upper side and a lower side.

When the encoder is connected to the traveling motor, the encoder detects the rotation angle of the traveling motor and accurately outputs the current position of the support frame, that is, the cutting position of the material by the upper rotary blade and the lower rotary blade as an electric signal. Can be detected. Therefore, the upper rotary blade and the lower rotary blade can be easily and electrically positioned based on a signal from the encoder, and can be automatically positioned at the cutting position.

According to the configuration of the second invention, the plurality of cutting units according to the first invention have a common guide shaft, screw shaft,
By combining with the first and second drive shafts, they can be moved laterally along the common guide shaft, and the distance between them can be freely adjusted and set to position the material at the cutting position. The upper rotating blade and the lower rotating blade can be rotationally driven through the two drive shafts, and the material can be cut at once.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

The thin plate cutting unit 10 includes a screw shaft 21
A screw member 11 screwed into the guide shaft 22, a slider 12 penetrating the guide shaft 22, and first and second drive shafts 23 and 24, respectively.
Rotary blade 13, lower rotary blade 14, screw member 1
1 is mounted on a common support frame 16 (FIGS. 1 and 2).

The support frame 16 is formed by integrally assembling an upper member 16a and a lower member 16b which are offset to the left and right via a connecting member 16c (FIGS. 1 and 3). The upper member 16a and the lower member 16b are plate members each having a sufficient thickness, and are disposed in parallel with each other above and below the connecting member 16c. The upper member 16a has an upper portion protruding forward long, and the lower member 16b has a rear portion obliquely rounded up. An auxiliary plate 16e is attached to the upper member 16a in parallel via upper connecting plates 16d1, 16d2, 16d3 and lower connecting rods 16d4, 16d5, 16d6. The auxiliary plate 16e is connected to the lower member 16b.
And a notch 16e1 in the shape of an arc is formed in the lower side.

The slider 12 is incorporated between the upper member 16a and the auxiliary plate 16e via a ring member 12a. The ring member 12a is screwed to the upper member 16a, and the slider 12 includes the ring member 12a and the auxiliary plate 16e.
And fixed at both ends. Also, slider 1
2, a guide shaft 22 is slidably penetrated.

The screw member 11 includes an upper member 16a and an auxiliary plate 1 via a ring member 11d and bearings 11e and 11e.
6e so as to be rotatable (FIGS. 1 and 4). The ring member 11d is screwed to the upper member 16a, and the bearings 11e, 11e are fitted into the ring member 11d and the auxiliary plate 16e, respectively. Screw member 1
1, a sprocket 11a is attached, and a screw shaft 21 parallel to the guide shaft 22 is screwed.

The sprocket 11a is connected to an upper sprocket 17a via a chain 11b, and a shaft 17 of the sprocket 17a is connected to bevel gears 17b, 17b.
The shaft 15a is connected to the shaft 15a of the traveling motor 15 with the legs 15b via the line c. The shaft 17 is rotatably supported via brackets 17d, 17d fixed to the upper surface of the support frame 16, and the traveling motor 15 is
It is fixed to the upper surface of.

The traveling motor 15 includes a sprocket 15
c, a chain 15e, and an encoder 15g are connected via a sprocket 15f. Note that the encoder 15
g is a bracket 17d via a bracket 15g1,
17d. Cover plates 16f and 16g are screwed in front and behind the support frame 16, and the rear cover plate 16g is extended above the support frame 16 to be higher. Screws 16h1 on the cover plate 16g,
A rearward-facing dog 16h is mounted via a support plate 16h2, 16h2 with 16h1 so as to be adjustable in height.

The upper rotary blade 13 and the lower rotary blade 14 are formed in a ring shape having the same diameter (FIGS. 3 and 5). Upper rotary blade 1
3, the lower rotary blade 14 has boss members 13a, 14a, respectively.
Screws 13a1 and 14a1
Holders 13b, 14b via boss members 13a, 14a
Is held rotatably. Boss members 13a, 14a
The first and second drive shafts 23 and 24 respectively penetrate therethrough so as to be relatively non-rotatable and slidable in the axial direction.
b1 so as to be inserted into the upper member 16a and the lower member 16b.
It is screwed to. However, the first and second drive shafts 2
Reference numerals 3 and 24 denote spline shafts which engage with splines (not shown) formed on the inner surfaces of the boss members 13a and 14a, respectively. Note that the upper rotary blade 13 is disposed on the right side of the lower rotary blade 14, and the two are disposed one above the other with their outer circumferences partially overlapped and opposed to each other.

The connecting member 16c of the supporting frame 16 is connected to the lower end of the upper member 16a and the upper end of the lower member 16b via reinforcing members 16c4, 16c4 (FIGS. 5 and 6). However, FIG. 6A is an enlarged view of a main part of FIG. 3, and FIG.
FIG. 2 is a cross-sectional view corresponding to the line ZZ in FIG. An obliquely downward slope 16c1 is formed on the upper rotary blade 13 side and an obliquely upward slope 16c2 is formed on the lower rotary blade 14 side at the front of the connecting member 16c. That is, the slope 16
c1 and 16c2 are the upper rotary blade 13 and the lower rotary blade 1 respectively.
4 is provided behind. In addition, the upper rotary blade 13 and the lower rotary blade 14 form an overlap margin δ by lightly contacting the outer peripheral portions of the opposing end surfaces.

The upper rotary blade 13 and the lower rotary blade 14 are driven to rotate in the opposite direction at the same peripheral speed in conjunction with the first and second drive shafts 23 and 24 (FIG. 6B). Arrow K2a,
In the direction K2b), the material W of the thin plate material fed from the front can be cut straight along the cutting line Wa through the overlap margin δ (FIGS. 2 and 6). At this time, the upper rotary blade 13 pushes down the cut material W1 on the right side of the cutting line Wa, and the lower rotary blade 14 pushes up the cut material W2 on the left side of the cutting line Wa. Also, the slopes 16c1 and 16c2 are formed by cutting the material W1 from the upper rotary blade 13 and the lower rotary blade 14,
Separate W2 upward and downward.

The upper rotary blade 13 and the lower rotary blade 14
≒ Set to 1.0mm, for SS steel plate of 1.2mm thickness,
A cutting speed of about 2.5 m / min can be achieved. The traveling motor 15 drives the screw member 11 forward and reverse through bevel gears 17c and 17b and a chain 11b, so that the support frame 16
Is moved laterally along the guide shaft 22 (in the directions of arrows K1a and K1b in FIGS. 2 and 3), and the cutting position of the material W by the upper rotary blade 13 and the lower rotary blade 14 can be arbitrarily set and changed.

The plurality of cutting units 10, 10,... Are provided with a common screw shaft 21, a guide shaft 22, and first and second parallel
The drive shafts 23 and 24 are combined with each other and assembled into the gantry frame 25 to form a cutting device (FIGS. 7 and 8). The cutting units 10, 10,...
3 on the right side of the lower rotary blade 14 and the upper rotary blade 1
3 arranged on the left side of the lower rotary blade 14 are alternately arranged.

Inside the gantry frame 25, a cutting space S1 for cutting the material W and cutting units 10, 10...
Is formed, and a table 25a for supporting the material W is provided in front of the cutting space S1. The material W is placed on the table 25a.
Is provided with a ruler 25b for guiding one side. In the storage space S2, the dog 1 of the cutting units 10, 10,...
6h, 16h ... corresponding to the limit switches 26, 26
… Are provided at different heights in order, and the cutting space S
A limit switch 27 that regulates the movement limit of the cutting unit 10 is also provided behind the first ruler 25b. The dog 16h of each cutting unit 10 is fixed at a height at which the dog 16h contacts the corresponding limit switch 26, 27.

The screw shaft 21, the guide shaft 22, and the first and second drive shafts 23 and 24 are provided with bearings 21a, 21a and 21a, respectively.
It is supported by the gantry frame 25 via 2a, 22a, 23a, 23a, 24a, 24a. In addition, screw shaft 2
1, the guide shaft 22 is non-rotatably supported, and the first and second
Drive shafts 23 and 24 are rotatably supported. The screw shaft 21 is a screw member 1 of the cutting units 10, 10,...
The guide shaft 22 is slidably penetrated in common with the sliders 12, 12,... Of the cutting units 10, 10,. Also, the first and second drive shafts 23, 24 penetrate the cutting units 10, 10,..., The upper rotary blades 13, 13,.

The first and second drive shafts 23 and 24 are connected via gears 23b and 24b having the same number of teeth.
Drive shaft 24 includes a sprocket 24c, a chain 24
d, connected to a drive motor 24f via a sprocket 24e. Therefore, each cutting unit 10 can rotate the screw member 11 in the forward and reverse directions via the traveling motor 15 to individually and laterally move along the guide shaft 22, and the first and second drive shafts 23, 24 , And the upper rotary blades 13, 13,..., The lower rotary blades 14, 14,... Of each cutting unit 10 can be simultaneously rotated and driven via a drive motor 24f.

When the material W is cut at an arbitrary cutting pitch d, each cutting unit 10 is positioned at every cutting pitch d from the position of the ruler 25b via the traveling motor 15 of each cutting unit 10. However, at this time, each cutting unit 10 can automatically position and set the upper rotary blade 13 and the lower rotary blade 14 at arbitrary cutting positions via the encoder 15g. Therefore, the drive motor 24
f, the upper rotary blade 1 via the first and second drive shafts 23 and 24
, And the lower rotary blades 14, 14,... Are simultaneously driven to rotate and feed the material W to the cutting units 10, 10,..., Whereby the material W can be cut at each cutting pitch d, d. At this time, each cutting unit 10 cuts the cutting lines Wa, Wa in accordance with the arrangement of the upper rotary blade 13 and the lower rotary blade 14.
, W2, W2, and W2, which are cut along along, can be alternately vertically separated and discharged backward.

Cutting unit 1 when not cutting material W
Are stored in the storage space S2 (two-dot chain line in FIG. 7). At this time, each cutting unit 10
h can be brought into contact with the corresponding limit switch 26 and stopped at a predetermined position in the storage space S2.

In the above description, the cutting apparatus changes the cutting pitch d between the cutting units 10, 10,.
, W1,..., W2, W2. Further, the cutting device includes cutting units 10 and 10 used for the cutting operation.
.. May be selected, and the cutting units 10, 10,... Not used for the cutting operation may be stored in the storage space S2. Further, the cutting device can be equipped with one or more arbitrary number of cutting units 10, 10,.

[0034]

[Other Embodiments] The upper rotary blade 13 and the lower rotary blade 14 may each be of a divided type (FIG. 9). However, FIG. 9 shows the upper rotary blade 13. The upper rotary blade 13
The semicircular divided pieces 13d, 13d can be combined in a ring shape and individually fixed to the flange 13a1 of the boss member 13a, and the divided pieces 13d, 13d can be combined with the boss member 13a.
Can be easily removed for easy maintenance.

[0035]

As described above, according to the first aspect of the present invention, by mounting the slider, the screw member, the upper rotary blade, and the lower rotary blade on the common support frame, the upper rotary blade, the lower rotary blade, and the lower rotary blade are mounted. Since the rotary blade can be positioned at a stroke by moving the support frame arbitrarily along the guide axis, there is no need to adjust the overlap allowance and clearance, and the setup work required to change the setting of the material cutting position There is an excellent effect that can be extremely simplified.

According to the second invention, the material can be cut all at once by combining the common screw shaft, guide shaft, first and second drive shafts with the plurality of cutting units according to the first invention. it can.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a cutting unit.

FIG. 2 is an explanatory perspective view of a cutting unit.

FIG. 3 is an enlarged view corresponding to an arrow X in FIG. 1;

FIG. 4 is an enlarged view equivalent to the arrow Y in FIG. 1;

FIG. 5 is an enlarged exploded perspective view of a main part.

FIG. 6 is an enlarged explanatory view of a main part.

FIG. 7 is a schematic plan view of the entire configuration.

FIG. 8 is a schematic front view of the entire configuration.

FIG. 9 is an exploded perspective view of a main part showing another embodiment.

[Explanation of symbols]

 W, W1, W2: Material δ: Overlap allowance 10: Cutting unit 11: Screw member 12: Slider 13: Upper rotary blade 14: Lower rotary blade 15: Traveling motor 15g: Encoder 16: Support frame 16c1, 16c2: Slope 21 ... Screw shaft 22 Guide shaft 23 First drive shaft 24 Second drive shaft

Claims (6)

[Claims] 1. A slider that slidably penetrates a guide shaft, a screw member that is screwed into a screw shaft parallel to the guide shaft, and first and second drive shafts that are parallel to the guide shaft. An upper rotary blade, a lower rotary blade, and a traveling motor that rotationally drives the screw member are mounted on a common support frame, and the upper rotary blade and the lower rotary blade overlap each other in an outer peripheral portion for cutting a material. A cutting unit for a thin plate material, comprising: 2. The thin plate cutting unit according to claim 1, wherein the upper rotary blade is disposed on the right side of the lower rotary blade. 3. The thin plate material cutting unit according to claim 1, wherein the upper rotary blade is disposed on the left side of the lower rotary blade. 4. The apparatus according to claim 1, wherein a slope is provided behind the upper rotary blade and the lower rotary blade to guide the cut material downward and upward, respectively. Cutting unit for thin sheet materials. 5. The thin sheet material cutting unit according to claim 1, wherein an encoder is connected to the traveling motor. 6. A plurality of cutting units according to claim 1, a common guide shaft corresponding to each slider, a common screw shaft corresponding to each screw member, and An upper rotary blade and a lower rotary blade are respectively provided with common first and second drive shafts, and the first and second drive shafts cooperate with the upper rotary blade and the lower rotary blade. An apparatus for cutting a thin plate material, which is driven to rotate.