JP2007144575A - Positioning device of slitter blade of cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate a control since all slitter blades are automatically and simultaneously moved by a driving motor, and to reduce manufacturing cost. <P>SOLUTION: When a plurality of slitter blades are mutually provided at intervals, a first movable body 8A is movably connected to the first slitter blade 1A fixed in position by driving the driving motor 4, a second movable body 8B is movably connected to the first movable body 8A by driving the driving motor 4, a third movable body 8C is movably connected to the second movable body 8B by driving the driving motor 4, the next order movable body is movably connected to the previous order movable body by driving the driving motor 4, and the second or succeeding slitter blades are provided in each of the movable bodies 8A, 8B, 8C or in every several mobile bodies, in this positioning device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention accurately cuts a long sheet such as a synthetic resin sheet or film such as a bubble sheet or a film, or a processed sheet made of paper or fiber into a large number of strips with an arbitrary width using a number of slitter blades (cutting blades) The present invention relates to a slitter blade positioning device for a cutting device applied to the cutting device.

  Conventionally, in the long sheet cutting apparatus as described above, a number of slitter blades have been moved and cut to an arbitrary width. If the movement is performed by hand, a sharp blade can cause injury. There is also a danger of doing, and efficiency is also bad.

Then, what automatically moves is proposed. For example, in Patent Document 1 below, a plurality of fixed blades are moved to a predetermined position via a carrier along the arrangement direction of the fixed blades, positioned, and fixed. There has been proposed a slitter device comprising a moving blade.
JP-A-1-306196

Further, Patent Document 2 below proposes a cutting blade moving device that engages the upper and lower blades by making the upper and lower blade holders movable to a predetermined position by a large number of servo motors and cylinders.
Japanese Examined Patent Publication No. 3-75319

On the other hand, in Patent Document 3 and Patent Document 4 below, a plurality of electric motors and cylinders are operated, and the movable blade is moved and fixed via a movable table and a movable unit that are movable in the sheet width direction along the rail and guide rod. A squeezing slitter device is described.
JP-A-5-200620 JP-A-5-277986

  On the other hand, there are also known individual holder types in which a large number of cutting blades are respectively attached to holders and each holder is provided with an operating means for the cutting blades.

For example, in Patent Document 5 below, a plurality of positioning devices are movably moved along a rail on a support table that is horizontally provided facing the sheet, and the positioning device is equipped with a slit blade holder, A moving cylinder and a locking cylinder are mounted so that each positioning device is independently moved by a predetermined distance for positioning, and the selected positioning device has a belt-like moving means that runs on each moving cylinder rod. Move until it detects the origin set at a predetermined position and stops and locks it with a locking cylinder, or again with the position reading sensor of the positioning device as a guide, It moves to a predetermined position, and the positioning device is locked with a locking cylinder at that position, and the slit blade is brought into an operating state. Ritter is a positioning device of the blade.
JP-A-8-155886

  In each of the prior arts of Patent Documents 1 to 4, the slit width is determined by moving individual moving blades with one carrier or the like. Therefore, there is a difficulty that it takes time to determine the slit width of all the slit blades.

  In addition, as in Patent Document 5, in the case of each individual holder type, a cylinder for swinging the cutting blade and a motor for moving the holder are installed in a holder that holds the cutting blade (slit blade). As a result, the size of the holder increases, the interval between the cutting blades increases, and the sheet cannot be cut with a narrow width.

  The object of the present invention is to eliminate the inconvenience of the above-mentioned conventional example, and with a single drive motor, all slitter blades can be moved automatically and simultaneously, so that the control is easy and the manufacturing cost is low. An object of the present invention is to provide a slitter blade positioning apparatus.

  In order to achieve the above object, according to the present invention, when the plurality of slitter blades are provided at a distance from each other, the first moving body is attached to the first slitter blade whose position is fixed. The second moving body is coupled to the first moving body so as to be movable by driving the driving motor, and the second moving body is coupled to the first moving body so as to be movable by driving the one driving motor. A third moving body is movably coupled by driving the drive motor, and similarly, a next moving body is movably coupled to the previous moving body by driving the one driving motor, The gist is that these moving bodies are provided with second or less slitter blades, respectively, or every few.

  According to the first aspect of the present invention, when the first moving body moves by driving one drive motor, the second moving body moves to the one moving body with respect to the movement of the first moving body. The next moving body is moved with respect to the preceding moving body so that the third moving body moves with respect to the movement of the second moving body. Since each of these movable bodies is provided with second or less slitter blades, the distance between the slitter blades is one drive motor. It is changed by driving.

  The gist of the present invention described in claim 2 is that each moving body has a ball nut and is moved by a ball screw rotated by a rotating shaft of one drive motor.

  According to the second aspect of the present invention, the movement of the next moving body having the next slitter blade by one driving motor, including the second moving body having the slitter blade, Since the movement is performed by the ball screw that rotates on the rotation shaft of the drive motor, the movement can be made finely by the screw pitch of the ball screw, and can be moved reliably.

  As described above, the slitter blade positioning device of the cutting apparatus according to the present invention can be controlled easily because all the slitter blades can be moved automatically and simultaneously with a single drive motor, and the manufacturing cost is low. It is a waste.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of a slitter blade positioning device of a cutting apparatus of the present invention, FIG. 2 is a perspective view of the same, in which 1A is a first slitter blade, 1B is a second slitter blade, and 1C. Is a third slitter blade, and a plurality of slitter blades 1A... 1n are arranged at equal intervals in this way, and constitute a cutting device that accurately cuts a long sheet or film into a plurality of strips. .

  The first slitter blade 1A is fixed in position, but a ball screw 3 is horizontally provided through a bearing 2 provided on the holder portion of the first slitter blade 1A, and a gear is driven by a drive motor 4 by a stepping motor. A gear 7b that meshes with a gear 7a provided on a drive shaft 6 that is rotationally driven via 5a and 5b is provided on the ball screw 3 so that the drive motor 4 can rotate the first ball screw 3A.

  In the figure, reference numeral 8A denotes a first moving body. In the example shown in the figure, a ball nut 9 is provided through a lower side wall of a U-shaped base plate with one side wall raised up, The first ball screw 3A was threaded through. Thus, the first moving body 8A can move along the first ball screw 3A as the first ball screw 3A rotates.

  The drive shaft 6 is formed as a spline shaft 6a, and a spline nut 10 is engaged with the drive shaft 6 so as to be laterally movable. The spline nut 10 was fixed with a gear 11a. The spline nut 10 is rotatably held by a bearing bearing 2 embedded in one side wall of the first moving body 8A raised up.

  In the first moving body 8A, one bearing bearing 2 'is buried below the bearing bearing 2 on one side wall that is raised up, and the second ball screw 3B is attached to the other bearing bearing 2'. It was supported so that it could rotate in the horizontal direction. A gear 11b is provided on the second ball screw 3B, and the gear 11b is engaged with a gear 11a provided on the spline nut 10 so that the second ball screw 3B can be rotationally driven by the rotation of the spline nut 10.

  In the figure, reference numeral 8B denotes a second moving body, which is a U-shaped platform with one side wall raised up like the first moving body 8A, and is provided with a ball nut 9 passing through the lower side wall. The second ball screw 3B is threaded through the ball nut 9 so that the second moving body 8B moves along the second ball screw 3B as the second ball screw 3B rotates.

  In the present embodiment, the second slitter blade 1B is provided on the second moving body 8B. Further, a gear 11a is fixed to a spline nut 10 that is movably engaged with the spline shaft 6a. The spline nut 10 is a bearing bearing 2 embedded in one side wall of the second moving body 8B that is raised up. Holds freely.

  The third ball screw 3C is supported in a horizontally rotatable manner by another bearing bearing 2 'embedded under the bearing bearing 2 on one side wall of the first moving body 8B raised up high. The third ball screw 3 </ b> C is provided with a gear 11 b, and the gear 11 b is engaged with the gear 11 a provided on the spline nut 10, so that the third ball screw 3 </ b> C can be rotationally driven by the rotation of the spline nut 10.

  Similarly, the third moving body 8C is movably connected to the third ball screw 3C, the third moving body 8C is provided with a third slitter blade 1C, and the position is fixed in this manner. A first moving body 8A is movably coupled to the slitter blade 1A by the drive of a single drive motor 4, and a second moving body having a second slitter blade 1B is connected to the first moving body 8A. 8B is movably coupled by the drive of the one drive motor 4, and a third moving body 8C having a third slitter blade 1C is driven by the drive motor 4 with respect to the second moving body 8B. In the same manner, the next moving body having the next slitter blade was similarly connected to the preceding moving body so as to be movable by driving the one drive motor 4.

  In the figure, reference numeral 12 denotes a bearing bearing that rotatably supports the drive shaft 6.

  In the above embodiment, the gears 5a, 5b, 7a, 7b, 11a, and 11b are engaged as the power transmission mechanism. However, a pulley and a belt or a chain can be used instead.

  Alternatively, the second slitter blade 1B may be provided on the first moving body 8A, the third slitter blade 1C may be provided on the second moving body 8B, and the fourth slitter blade may be provided.

  Next, the usage will be described. First, a plurality of slitter blades 1A... 1n arranged at equal intervals from each other are arranged at equal intervals with a minimum pitch of 100 mm, and these are arranged at 150 mm and 200 mm. , When expanding to a pitch of 250 mm.

  When the pitch between the slitter blades is set to 150 mm, the first moving body 8A is moved relative to the first slitter blade 1A whose position is fixed, and the second slitter blade 1B is moved laterally by 50 mm. This movement is performed by rotating the drive shaft 6 by driving one drive motor 4 and further rotating the first ball screw 3A.

  Similarly, when the drive shaft 6 is rotationally driven, the second moving body 8B is also moved laterally by the same width of 50 mm with respect to the first moving body 8A. As described above, the first moving body 8A is moved. Since the first slitter blade 1A is laterally moved by 50 mm, the second moving body 8B with respect to the first slitter blade 1A and the amount of movement of the second slitter blade 1B provided there Is 100 mm and is located at 200 mm.

  Similarly, the third slitter blade 1C moves to a position of 300 mm, and the pitch of each slitter blade 1A... 1n is 150 mm.

  Similarly, in the case of 200 mm, the first moving body 8A may be moved relative to the first slitter blade 1A whose position is fixed, and the second slitter blade 1B may be moved laterally by 100 mm.

  When the minimum pitch is 250 mm, the slitter blades may be provided so as to jump over the moving bodies between them, such as the second moving body 8B and the fourth moving body. (The moving body in parentheses in FIG. 3 has no slitter blade.)

  In this way, when the minimum pitch is 100 mm and this is changed to 100 to 200 mm pitch, (pitch −100 mm) is the amount of movement, and when it is changed to 200 to 300 mm pitch, (pitch −200 mm / 2) is moved. When the amount is changed to a pitch of 300 to 400 mm, the movement amount may be (pitch−300 mm / 3).

  FIG. 4 shows a second embodiment of the present invention, which is a case where a moving body is provided on the left and right with respect to the first slitter blade 1A having a fixed position, and the slitter blades having an interval are on the left and right.

  Even in such a case, it is possible to change the interval between the slitter blades in the left-right direction.

It is explanatory drawing which shows 1st Embodiment of the positioning device of the slitter blade of the cutting device of this invention. It is a perspective view which shows 1st Embodiment of the slitter blade positioning device of the cutting device of this invention. It is explanatory drawing of the position change of the positioning device of the slitter blade of the cutting device of this invention. It is explanatory drawing which shows 2nd Embodiment of the positioning device of the slitter blade of the cutting device of this invention.

Explanation of symbols

1A, 1B, 1C to 1n: Slitter blade 2, 2 '... Bearing bearings 3A, 3B, 3C ... Ball screw 4 ... Drive motor 5a, 5b ... Gear 6 ... Drive shaft 6a ... Spline shaft 7a, 7b ... Gears 8A, 8B, 8C ... moving body 9 ... ball nut 10 ... spline nut 11a, 11b ... gear 12 ... bearing bearing

Claims (2)

  When a plurality of slitter blades are provided at intervals, a first moving body is movably coupled to a first slitter blade whose position is fixed by driving of a single drive motor. A second moving body is coupled to the body so as to be movable by driving the one driving motor, and a third moving body is coupled to the second moving body so as to be movable by driving the driving motor. Similarly, the next moving body is movably coupled to the preceding moving body by the driving of the one drive motor, and the second or lower slitter is connected to each of these moving bodies or every few. A slitter blade positioning device for a cutting device, characterized in that a blade is provided.   2. The slitter blade positioning device according to claim 1, wherein each movable body has a ball nut and is moved by a ball screw rotated by a rotation shaft of one drive motor.

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