JP2007083348A - Cutting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting machine capable of ensuring product quality by preventing damage caused by dropping of a product cut out of a cutting object. <P>SOLUTION: This cutting machine slices a rolled web 2 in rounds with its cutting edge. Products 3 separated from the rolled web 2 are received by a pair of rails 4 as a receiver beneath the products 3 and placed on a product carrier conveyer 5. Therefore, the products separated from the rolled web 2 are prevented from dropping off on the product carrier conveyer 5 and being damaged or distorted. Thus, it is possible to ensure the quality of the products 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cutting machine, and more particularly, to a cutting machine for cutting a cylindrical object to be cut into round pieces.

  In general, when manufacturing an adhesive tape, first, a wide original tape is wound around a paper winding shaft by a winding device to form a long original fabric. A product-shaped pressure-sensitive adhesive tape is obtained by cutting the opposite side (subject to be cut) into round pieces with a cutting machine. In such a cutting machine, the pressure-sensitive adhesive tape includes a disk-shaped cutting blade having a rotation axis parallel to the support shaft of the workpiece support device, and the winding shaft is supported by the workpiece support device. It is known that the rotating cutting blade is moved toward the take-up shaft of the adhesive tape while the original is rotated about its axis, and the adhesive tape is cut into a predetermined width. (For example, refer to Patent Document 1). By the way, in the conventional cutting machine, the adhesive tape (product) separated from the original fabric by cutting falls onto the product carry-out conveyor installed below and is sequentially carried out by the product carry-out conveyor. Therefore, in the conventional cutting machine, when the adhesive tape is relatively soft, the product (adhesive tape) is distorted by an impact when it collides with the product carry-out conveyor, resulting in a problem that the commercial value is lowered. .

Therefore, there is a method to reduce the impact when it collides with the product carry-out conveyor by shortening the product drop distance by adjusting the pass line of the product carry-out conveyor according to the outer diameter size of the workpiece. Since it is necessary to adjust the pass line of the entire carry-out system, the structure is complicated and the manufacturing cost of the apparatus increases significantly. It is also necessary to adjust the pass line of the product carry-out conveyor each time the product changes, so the number of setup man-hours To increase.
Japanese Examined Patent Publication No. 6-59637 (page 5, left column, line 25 to page 5, right column, line 13, line 3)

  Then, this invention is made | formed in view of the said situation, and it aims at providing the cutting machine which prevents the damage by the fall of the product cut | disconnected from the to-be-cut object, and ensures the quality of a product.

  In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention includes a workpiece support means for horizontally supporting a workpiece, and a workpiece supported by the workpiece support means. A cutting machine comprising: a cutting means for cutting into round slices; and a product carry-out conveyor provided below the cutting means for carrying out a product cut from an object to be cut by the cutting means. It is characterized by comprising product delivery means for receiving a product separated from an article directly under the product and placing it on a product carry-out conveyor.

According to a second aspect of the present invention, in the cutting machine according to the first aspect, the product delivery means is provided so as to be movable in and out with respect to the product carry-out conveyor, and supports the lower part of the product, And a receiver lifting mechanism that moves up and down to be positioned at a predetermined height.
According to a third aspect of the present invention, in the cutting machine according to the first or second aspect, the receiving tool is constituted by a pair of mutually parallel rails that support the outer peripheral surface of the product along the generatrix. And
According to a fourth aspect of the present invention, in the cutting machine according to any one of the first to third aspects, the pair of rails are inclined at a predetermined angle with respect to a horizontal plane.

Therefore, in the invention according to the first aspect, the product cut from the object to be cut into round pieces by the cutting means falls by a minimum distance and is received by the product delivery means. Then, the product received by the product delivery means is placed on the product carry-out conveyor by the product delivery means.
In the invention according to the second aspect, the product cut off from the object to be cut is received by the receiving tool that is placed on standby immediately below the product. Then, the receiver is lowered by the receiver lifting mechanism and accommodated in the product carry-out conveyor, whereby the product supported by the receiver is placed on the product carry-out conveyor.
In the invention according to claim 3, the lower part of the outer peripheral surface of the product is supported along the generatrix by the pair of rails.
In the invention according to claim 4, the product can be received in a more stable posture by the pair of rails.

  It is possible to provide a cutting machine that prevents damage caused by dropping of a product cut from a workpiece and ensures the quality of the product.

  An embodiment of the present invention will be described with reference to FIGS. The present cutting machine 1 is an apparatus (slicer) for obtaining a product 3 having a predetermined width by cutting an original 2 (an object to be cut) of an adhesive tape into round pieces, as shown in FIG. 1 and FIG. Two cutting devices 6 and 7 (cutting means) arranged in parallel in the horizontal direction (left and right direction in FIG. 1), and a raw material 2 that supports two raw materials 2 cut in parallel by the cutting devices 6 and 7 in parallel. An anti-support device 8 (object to be cut support means), and an original fabric drive device 12 that rotationally drives each original fabric 2 supported by the original fabric support device 8 and moves and positions it in each axial direction. . Further, the main cutting machine 1 conveys the original fabric 2 toward the cutting portion of the cutting machine 1 (the portion where the cutting is performed, in the main cutting machine 1, the central portion of the main body frame 17). 9, the original fabric 2 carried in by the original fabric carry-in conveyor 9 is supplied to the original fabric take-out stand 10 as needed.

  Further, the cutting machine 1 includes a raw material supply device 11 that supplies the raw material 2 supplied to the original material take-out stand 10 to the original material support device 8, and each original material supported by the original material support device 8. And a centering device 13 for centering the anti-2. And in this cutting machine 1, when each original fabric 2 supported by the said original fabric support apparatus 8 is moved to each axial direction by the said original fabric drive apparatus 12, each original fabric 2 becomes each cutting device 6, 7 is positioned with respect to each of the cutting blades 15 and 16, and is centered by the centering device 13. In this state, each raw fabric 2 is rotated around each axis by a predetermined rotational speed by the original fabric driving device 12. It is rotated by. Then, the cutting blades 15 and 16 are cut and fed at a predetermined speed while the cutting blades 15 and 16 of the cutting devices 6 and 7 are rotated at a predetermined rotation speed. Thereby, the front end part of each original fabric 2 is cut into a ring by each cutting blade 15, 16, and the product 3 having a predetermined width is separated from each original fabric 2.

  Moreover, this cutting machine 1 is equipped with the receiving device (product delivery means) which receives each product 3 cut | disconnected from each raw fabric 2 directly under each product 3, and each product 3 received by this receiving device is received. The product is placed on a product carry-out conveyor 5 installed below the cutting devices 6 and 7. As shown in FIG. 1, the original fabric carry-in conveyor 9 is installed on the left side (left side in FIG. 1) of the main body frame 17, and is placed sideways (in the paper view direction in FIG. 1). 2 is supplied to the raw material take-out stand 10 as required. The original fabric take-out stand 10 includes an original fabric support portion 18 having a V-groove (a groove opened in a V shape) in the upper portion, and the original fabric 2 supplied by the original fabric carry-in conveyor 9 is the V The structure is supported by a groove. The original take-out stand 10 includes an outer diameter detection sensor that detects an outer diameter of the original fabric 2 supported by the original fabric support portion 18.

  And in this cutting machine 1, the said original fabric support part 18 is positioned to an up-down direction based on the detection result (outer diameter dimension of the original fabric 2) of the said outer diameter detection sensor. Thereby, the axial center height with respect to the floor surface of the original fabric 2 supported by the original fabric support portion 18 is kept constant. As shown in FIGS. 2 and 3, the material supply device 11 includes two carriers 19 and 20 provided on the main body frame 17 and arranged in parallel in the left-right direction (left-right direction in FIG. 3). Prepare. Since the first carrier 19 arranged on the right side and the second carrier 20 arranged on the left side in the front view (viewed on the paper in FIG. 3) have the same structure, for convenience, here, the first carrier 19 Only the carrier 19 will be described, and a detailed description of the second carrier 20 will be omitted. As shown in FIG. 2, the carrier 19 includes a front arm 21 disposed on the front side (right side in FIG. 2) and a rear arm 22 disposed on the rear side (left side in FIG. 2). .

  The front arm 21 is suspended from an upper part of the main body frame 17 via a linear guide that extends in the left-right direction (left-right direction in FIG. 3). The rear arm 22 is suspended from a slide base 23 provided via a linear motion guide extending in the front-rear direction (left-right direction in FIG. 2) above the main body frame 17 via a linear motion guide extending in the horizontal direction. Is done. Further, as shown in FIG. 2, the first carrier 19 includes the front arm 21 and the rear arm 22 connected to each other via a ball screw shaft 24 extending in the front-rear direction. The rear arm 22 is configured to be moved close to and away from the front arm 21 by being driven to rotate by a servo motor controlled by an NC control device. The first carrier 19 has a structure in which the front arm 21 and the rear arm 22 are integrally moved in the left-right direction by driving of a servo motor controlled by the NC controller.

  As shown in FIG. 2, the first carrier 19 is provided at the lower end of the front arm 21 so as to be able to move up and down, and the front end of the winding shaft 28 of the original fabric 2 (the right side in FIG. 2). An engagement member 25 engaged with the end portion) and a rear end portion (left end portion in FIG. 2) provided at the lower end portion of the rear arm 22 so as to be movable up and down. And an engaging member 26 to be engaged. And in the said original fabric supply apparatus 11, after moving the said 1st carrier 19 to the left-right direction (left-right direction in FIG. 3) and positioning it in the original fabric taking-out position, each engaging member of each arm 21 and 22 is carried out. 25 and 26 are lowered, and the engaging members 25 and 26 are engaged with the front and rear ends of the take-up shaft 28 of the original fabric 2 on the original fabric take-out stand 10. In this state, by raising the engaging members 25 and 26 of the arms 21 and 22, the raw fabric 2 on the raw fabric take-out stand 10 is suspended by the arms 21 and 22 of the first carrier 19. It has a structure. The engaging members 25 and 26 are moved up and down by driving the air cylinder.

  As shown in FIG. 2, the original fabric support device 8 is provided on the base 35 of the cutting machine 1 and is supplied by the carriers 19 and 20 of the original fabric supply device 11. A support portion 27 is provided for supporting the lower part of the outer peripheral surface of each of the original fabrics 2 so as to be rotatable about each axis. The support portion 27 is provided on an upper portion of a plurality of support carts 29 (three in the present embodiment) that can travel on the base 35 in the front-rear direction. Of the plurality of support carts 29, the top support cart 29 (the support cart 29 arranged on the rightmost side in FIG. 2) is fixed to the base 35 (untravelable). In the original fabric support device 8, each support portion 27 of each support carriage 29 is positioned in the vertical direction based on the detection result of the outer diameter detection sensor (the outer diameter dimension of the original fabric 2). Thereby, the axis line of each original fabric 2 supported by each support portion 27 is structured to be centered with respect to each drive shaft described later of the original fabric drive device 12.

  As shown in FIG. 2, the original fabric drive device 12 is provided on the main body frame 17 and is connected to each take-up shaft 28 of each original fabric 2 supported by the original fabric support device 8. With a shaft. Further, the original fabric driving device 12 travels in the front-rear direction (left-right direction in FIG. 2) by driving of a servo motor controlled by the NC control device, and is supported by the original fabric support device 8. 2 is structured to be moved and positioned in each axial direction (left-right direction in FIG. 2). The original fabric drive device 12 has a structure in which the respective take-up shafts (original fabric 2) are rotationally driven around the axis when the drive shafts are rotated. As shown in FIGS. 1 and 2, the cutting devices 6 and 7 are arranged symmetrically on the front surface of the main body frame 17, and each disk-shaped cutting blade 15, 16 is mounted. Each of the cutting devices 6 and 7 is structured to move (cut feed) and position in the left-right direction (left-right direction in FIG. 1) by driving each servo motor controlled by the NC control device.

  As shown in FIGS. 4 and 5, the centering device 13 includes the arms 14 arranged on the same axis with respect to the drive shafts of the raw fabric drive device 12. It is structured to be moved and positioned in each axial direction by driving of a servo motor controlled by the NC control device. And in this cutting machine 1, each front-end | tip part of each arm 14 of the said centering apparatus 13 is engaged with each winding shaft 28 of each original fabric 2, and it has the structure where each original fabric 2 is centered. It has become. As shown in FIGS. 1 and 2, the cutting machine 1 is supported on the front surface of the main body frame 17 by the original fabric support device 8 and centered by the centering device 13. An outer peripheral surface pressing mechanism 31 that supports the outer peripheral surface in the vicinity of the second cutting position by three rollers 30 is provided. And in this cutting machine 1, each original fabric 2 is supported by the said outer peripheral surface pressing mechanism 31, and in this state, it is rotationally driven around each axis line by the said original fabric drive device 12, and each cutting device 6, 7 is structured to be cut into round slices.

  As shown in FIG. 4, the frame of the centering device 13 is provided with an ejector 36 that is moved in the front-rear direction (the left-right direction in FIG. 4) by driving a servo motor controlled by the NC control device. Thus, the ejector 36 reliably separates the products 3 separated from the raw fabrics 2 from the arms 14 of the centering device 13. As shown in FIG. 2, the product carry-out conveyor 5 is disposed between the product conveyance conveyor 37 installed below the centering device 13 and the main body frame 17, as shown in FIG. 4. Each product 3 separated from each raw fabric 2 is transported to the product transport conveyor 37 by being transported by the transport paths 38 and 39 arranged in the original fabric arrangement direction (vertical direction in FIG. 4). It has become. Further, as shown in FIG. 6, the product carry-out conveyor 5 has three carry-out paths 38 and 39 that are divided in the conveyor width direction (left and right direction in FIG. 6).

  As shown in FIGS. 5 and 6, the cutting machine 1 includes each receiving device that receives each product 3 separated from each raw fabric 2 by a pair of rails 4 immediately below each product 3. In each of the receivers, the pair of rails 4 are formed by a central belt 40 in each of the carry-out paths 38 and 39 of the product carry-out conveyor 5 and belts on both sides of the central belt 40 (belts on both right and left in FIG. 6). It is housed so that it can appear in between. Each receiver is provided at an upper end portion of each guide rail 41 in which each rail 4 extends in the vertical direction (vertical direction in FIG. 6), and each guide rail 41 is fixed to each guide frame 17. The case 42 is supported so as to be movable up and down. Further, the lower ends of the guide rails 41 are fixed to an elevating plate 45, and the nuts 44 screwed to the pair of ball screw shafts 43 are fixed to the elevating plate 45. In the cutting machine 1, the pair of ball screw shafts 43 are rotationally driven by a servo motor 46 controlled by the NC control device, so that the pair of rails 4 of each receiver are lifted and lowered. ing.

  Moreover, in this cutting machine 1, when each product 3 cut | disconnected from each raw fabric 2 is received by the pair of rails 4 of each receiver, the pair of rails 4 of each receiver will descend | fall and the said product carrying-out conveyor 5 will be lowered | hung. Are housed under the respective carry-out paths 38, 39. Thereby, each product 3 supported by the pair of rails 4 of each receiver is left on each carry-out path 38, 39, and each product 3 is placed on each carry-out path 38, 39. Each product 3 placed on each carry-out path 38, 39 is transported toward the product transport conveyor 37. In the cutting machine 1, the servo motor 46 is controlled based on the detection result of the outer diameter detection sensor, so that the pair of rails 4 of each receiver are directly below each product 3 separated from each raw fabric 2. (In the present embodiment, the distance between the outer peripheral surface of each product 3 and the rail 4 is within 1 mm).

  Next, the operation of the cutting machine 1 will be described. First, the original fabric 2 (object to be cut) conveyed by the original fabric carry-in conveyor 9 is taken out on the original fabric support portion 18 of the original fabric take-out stand 10. Then, when the outer diameter dimension of the original fabric 2 is measured by the outer diameter detection sensor, the original fabric support portion 18 is moved up and down based on the detection result of the outer diameter detection sensor. The axial height of the supported original fabric 2 is adjusted to a predetermined height (the height at which the engaging members 25 and 26 of the arms 21 and 22 can be engaged with both ends of the original fabric 2). Next, the engagement member 25 of the front arm 21 and the engagement member 26 of the rear arm 22 of the first carrier 19 of the original fabric supply apparatus 11 are lowered and the engagement members 25, 26 are moved by the original fabric support portion 18. Engage with the front and rear ends of the supported original fabric 2. In this state, when the engaging members 25 and 26 are raised, the original fabric 2 is taken out from the original take-out stand 10 and suspended by the front arm 21 and the rear arm 22 of the first carrier 19. . Further, after the original fabric 2 is taken out of the original take-out table 10 by the first carrier 19, the second carrier 20 is caused to perform the same operation as the first carrier 19, whereby the next original fabric 2 is It is suspended by two carriers 20.

  And each original fabric 2 taken out from original fabric take-out stand 10 is conveyed by each carrier 19 and 20 of original fabric supply device 11, and each support cart 29 of original fabric support device 8 (object to be cut) is supported. It is mounted on each support part 27. Next, the original fabric drive device 12 is moved forward (moved rightward in FIG. 2) from the retracted position, and each drive shaft is connected to each take-up shaft 28 of each original fabric 2 supported by the original fabric support device 8. . Then, after the connection between each drive shaft and each original fabric 2 is completed, the engagement between each original fabric 2 and each engagement member 25, 26 of each arm 21, 22 of each carrier 19, 20 is released and the original fabric is released. The carriers 19 and 20 of the supply device 11 are retracted. Next, each original fabric 2 is moved forward (moved rightward in FIG. 2) by the original fabric driving device 12, and each cutting position of each original fabric 2 is set to each cutting blade of each cutting device 6, 7 (cutting means). 15 and 16 are positioned. Then, after the positioning of each original fabric 2 is completed, each arm 2 of the centering device 13 is engaged with each original fabric 2 to center each original fabric 2, and each original 30 is rotated by each roller 30 of the outer periphery pressing mechanism 31. The vicinity of the cutting position of the outer peripheral surface of the opposite side is supported.

  In this state, each cutting position of each original fabric 2 is cut into a circle by each cutting blade 15, 16 rotated by each cutting device 6, 7 while rotating each original fabric 2 about each axis. At this time, the pair of rails 4 of each receiving tool (product delivery means) is raised at a predetermined timing to stand by just below each product 3 separated from each original fabric 2. Then, the products 3 separated from the raw fabrics 2 are received by the pair of rails 4 of the respective receivers immediately below the products 3, and the pair of rails 4 of the respective receivers are lowered. Then, when the pair of rails 4 of each receiver is accommodated in the product carry-out conveyor 5, each product 3 is left on the carry-out paths 38 and 39 of the product carry-out conveyor 5 and placed. Each product 3 placed on each carry-out path 38, 39 is carried out by the product carry-out conveyor 5, is transferred to the product conveyance conveyor 37, and is conveyed outside the cutting machine 1 by the product conveyance conveyor 37.

This embodiment has the following effects.
In this cutting machine 1, each raw fabric 2 (object to be cut) is cut into round pieces by the respective cutting blades 15 and 16 of the respective cutting devices 6 and 7 (cutting means), and each product separated from each original fabric 2 is cut. 3 is received by each receiving tool (product delivery means) immediately below each product 3 and placed on the product carry-out conveyor 5.
Therefore, in the present cutting machine 1, unlike the conventional cutting machine 1, the product 3 cut from the raw fabric 2 does not fall on the product carry-out conveyor 5 and is not damaged or distorted. Quality is ensured.

In addition, embodiment is not limited above, For example, you may comprise as follows.
In the present embodiment, the pair of rails 4 of each receiver are installed horizontally, but as shown in FIG. 7, the pair of rails 4 is inclined at an inclination angle θ (for example, θ = 15 °). Alternatively, the tilt angle θ may be adjustable. Thereby, according to the product 3, the product 3 can be received in a more stable posture and placed on the product carry-out conveyor 5.

It is the front view of this cutting machine, Comprising: It is the figure which abbreviate | omitted the raw material supply apparatus especially. It is a left view of this cutting machine. It is a front view of this cutting machine, and is the figure which omitted one cutting device in order to show an original fabric supply device especially. It is explanatory drawing of this cutting machine, Comprising: It is a top view of a centering apparatus, a product carrying-out conveyor, and a product conveyance conveyor. It is explanatory drawing of this cutting machine, Comprising: It is a left view of a centering apparatus, a product carrying-out conveyor, and a product conveyance conveyor. It is explanatory drawing of this cutting machine, Comprising: It is an AA arrow line view in FIG. It is explanatory drawing of other embodiment, Comprising: It is the figure seen from the BB arrow direction in FIG. 6 of this cutting machine.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Cutting machine, 2 Original fabric (to-be-cut object), 3 products, 4 rail (product delivery means), 5 product carry-out conveyor, 6,7 Cutting device (cutting means), 8 Original fabric support apparatus (to-be-cut object support means) )

Claims (4)

Cut object support means for horizontally supporting the cut object, cutting means for cutting the cut object supported by the cut object support means into round slices, and the cutting means provided below the cutting means A product unloading conveyor for unloading the product cut from the object to be cut by the cutting machine,
A cutting machine comprising product delivery means for receiving the product separated from the object to be cut directly under the product and placing the product on a product carry-out conveyor.   The product delivery means is provided so as to be able to appear and retract with respect to the product carry-out conveyor, and supports a lower part of the product, and a receiver lifting mechanism that moves the receiver up and down to position it at a predetermined height; The cutting machine according to claim 1, comprising:   The cutting machine according to claim 1 or 2, wherein the receptacle is constituted by a pair of mutually parallel rails that support an outer peripheral surface of the product along a generatrix. The cutting machine according to any one of claims 1 to 3, wherein the pair of rails are inclined at a predetermined angle with respect to a horizontal plane.

Images