JP2014042944A - Slitter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve labor saving of an operator and highly accurate positioning when changing and adjusting a slit cutting position, and achieve space saving of a slitter device, in the slitter device which cuts slits in an object to be cut by a predetermined number of slitter blades.SOLUTION: A shaft 31 is provided with slitter blades 14-1 to 14-5. A movable shaft 42 arranged parallel to the shaft 31 is provided with a movable chuck part 41 equipped with a movable holding arm 51 movable to the slitter blade side, and provided with a single detection sensor 56, 57 moving integrally with the movable chuck part 41. On the basis of detection of a slitter blade to be moved by the detection sensor 56, 57, the slitter blade to be moved is held and moved by the movable holding arm 51.

Description

  The present invention relates to a slitter device that performs slit cutting on a workpiece with a predetermined number of slitter blades.

  2. Description of the Related Art In recent years, a slitter device that performs slitter cutting on a workpiece is used in various fields depending on the type of the workpiece. Although it is the same in any field, when it is necessary to change and adjust the slit cutting position, the slitter blade can be moved, and labor saving and high-accuracy positioning of the operator are desired. It is also necessary to save space for the device.

  Conventionally, as a slitter apparatus, what is described in the following patent documents is known. In Patent Document 1, a driving machine is provided along a rotating shaft in which lower blades are arranged side by side, and an arm body that moves the lower blade is attached to the driving machine, and the driving body is driven to attach the arm body to the operator. It is described that it is brought close to the lower blade body by eye measurement and is moved by being manually held from the side surface of the lower blade by the arm body.

  In Patent Literature 2, a tool post including a rotary blade is provided in parallel on a common drive shaft, and an engagement / disengagement mechanism is provided in parallel on the screw shaft corresponding to each of the tool posts, and each engagement is also performed. A detection sensor corresponding to the detachment mechanism is provided. When a desired rotary blade is moved, a tool post including the rotary blade is engaged with a corresponding engagement / disengagement mechanism, and the corresponding detection sensor is positioned. A mechanism is described that is once moved and moved from the position of the detection sensor to the position of the counter set value.

  In Patent Document 3, as shown in FIG. 5, a plurality of slide bases are provided on a linear rail via linear motion bearings that are movable in both directions, and a slitter moving clutch and a slitter fixing clutch are provided on the slide base. A knife holder for holding a clutch and a slitter knife is attached, and a plurality of slitter moving motors, knife holders, slitter knives, and external magnets are integrated on the linear rail screw shaft and the linear rail. Is provided with a position detection sensor (temposonic displacement detector) using a waveguide provided in parallel to the position of the position detection sensor when the desired slitter knife (slide base) is moved. Driving a slitter moving motor It has been described as the structure.

Japanese Patent No. 3363268 Japanese Patent Publication No. 07-0777717 Japanese Patent No. 2950776

  However, in the slitter device described in Patent Document 1, the positioning operation for moving the arm body to the position of the lower blade and the operation for holding the lower blade by the arm body are performed by the operator. There is a problem in that the holding must be performed with high accuracy, which places a great burden on the operator. Further, in the apparatus described in Patent Document 2, although the burden on the operator is reduced as compared with the apparatus described in Patent Document 1, an engagement / disengagement mechanism and a detection sensor are provided for each rotary blade. Since it is provided, there is a problem that the entire apparatus is enlarged.

  Furthermore, in the apparatus described in Patent Document 3, each slitter knife is moved by moving the slide base even if the position detection sensor itself is single, and the slitter knife itself is directly provided on the shaft. In this case, the moving mechanism described above cannot be used, and a slitter moving motor or the like provided for each of the slide bases corresponding to the slitter knives causes an increase in the size of the device as in the device described in Patent Document 2. At the same time, there is a problem that the slitter knives cannot be brought close to each other because the arrangement of the slitter knives is restricted due to the slitter moving motor or the like.

  Accordingly, the present invention has been made in view of the above-described problems, and provides a slitter device that saves the operator labor when the position for slit cutting is adjusted, achieves high-precision positioning, and saves space in the device. The purpose is to do.

  In order to solve the above-mentioned problem, in the invention of claim 1, the slitter blade position on the shaft axis when the slit slit of a predetermined number is formed on the object to be cut by the slitter blade provided on the shaft axis is determined on the shaft axis. Is a slitter device that moves and adjusts the slit cut formation position of the object to be cut, and is provided on a moving shaft arranged in parallel with the shaft axis, and is movable and held on the slitter blade side. A movable chuck portion that includes an arm and holds the slitter blade and is driven and moved on the movable shaft, and is moved integrally with the movable chuck portion and holds the slitter blade on the shaft axis by the movable holding arm. And a single detection sensor for detecting the slitter blade.

  According to the first aspect of the present invention, there is provided a moving chuck portion provided with a predetermined number of slitter blades on the shaft shaft and having a movable holding arm movable on the slitter blade side provided on the moving shaft arranged in parallel with the shaft shaft. The slitter blade is detected by a single detection sensor that is moved integrally. Based on the detection, the slitter blade to be moved is held by the movable holding arm and moved. Since the slitter blade is adjusted by the moving chuck, it is not necessary to provide a drive mechanism for each slitter blade, so that the space saving of the device can be realized, and each of the case where a plurality of slitter blades are provided. The slitter blades can be brought close to each other, and the slitter blade can be held with high precision by the movable holding arm without placing a burden on the operator. Tsu in which the slitter blade without providing a sensor for each motor blade can be positioned with high accuracy.

It is a conceptual diagram of a label manufacturing apparatus provided with the slitter apparatus which concerns on this invention. It is explanatory drawing of the upper blade and lower blade in the slitter apparatus of FIG. It is a block diagram of the movement chuck | zipper part in the slitter apparatus of FIG. It is explanatory drawing of the holding state of the lower blade of FIG. It is a block diagram of the drive control part in a slitter apparatus. It is a flowchart of the lower blade position recognition in a slitter apparatus. It is operation | movement explanatory drawing in FIG. It is a flowchart of the position change adjustment operation | movement of the lower blade of FIG. It is operation | movement explanatory drawing in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Although this embodiment shows the case where the slitter device of the present invention is installed in an RFID label manufacturing apparatus, it can be applied to various fields depending on the type of other object to be cut. In the present embodiment, the slitter blade to be moved is described as only the lower blade, but the upper blade may be used, or both the upper blade and the lower blade may be used. It should be noted that the illustration in the present embodiment is shown ignoring actual dimensions for ease of explanation.

  In FIG. 1, the conceptual diagram of a label manufacturing apparatus provided with the slitter apparatus which concerns on this invention is shown. In FIG. 1A, an RFID label manufacturing apparatus 11 is an inlet that is a cut body in which, for example, six rows of inlets 22 as shown in FIG. 1B are formed from a continuous inlet roll 11A at a predetermined interval. The sheet 21 is sequentially conveyed, and the slitter device 12 including the slitter blade including the upper blade 13 and the lower blade 14 with respect to the inlet sheet 21, as shown in FIG. Slit cuts are formed and separated for each row.

  Each of the inlet sheets 21-1 to 21-6 in each column is subjected to a reading inspection by the reading inspection unit 15 in units of rows for all six columns of the inlets 22, and after being converted into unit inlets by the unit inlet cutting unit 16, the distribution roller. In FIG. 17, the non-defective product and the defective product are sorted, and only the non-defective product is pasted on the mount 20 through the supply roller 18 and the transfer roller 19, thereby producing the RFID label of the separated inlet.

  Here, FIG. 2 shows an explanatory view of the upper blade and the lower blade in the slitter device of FIG. 2A, the slitter device 12 includes lower blades 14 (14-1 to 14-5) corresponding to the peripheral blades of the five upper blades 13 shown in FIG. 1C. A groove 14 </ b> A is formed on the circumferential side of each lower blade 14, and a notch escape for avoiding contact with the circumferential notch of each lower blade 14 with the contact notch (edge K) and the tip of the upper blade. A portion 14C is formed, and the contact cut portion and the upper blade 13 are brought into contact with each other as shown in the drawing to form a slit cut in the inlet sheet 21. As shown in FIG. 2B, each lower blade 14 is formed with a shaft hole 14B, passed through the shaft shaft 31 and fixed, and rotated together with the upper blade 13 in accordance with the rotation.

  As shown in FIG. 1C, the shaft shaft 31 is provided with elastic movable bodies 31A to 31D, for example, at four locations on the circumferential side, and is movable on the outer circumferential side by air or the like as shown in FIG. 1D. By doing so, each lower blade 14 is pressed against the inner peripheral surface of each shaft hole 14B and fixed. In addition, you may use the axis | shaft which the whole shaft axis | shaft 31 expands / contracts to radial direction.

  Next, FIG. 3 shows a configuration diagram of the moving chuck portion in the slitter apparatus of FIG. 1, and FIG. 4 shows an explanatory diagram of the holding state of the lower blade of FIG. In FIG. 3A, a ball screw 42 which is a moving shaft arranged in parallel with a shaft 31 in which five lower blades 14 are arranged in parallel is provided, and the moving chuck portion 41 is screwed to the ball screw 42. . As a means for moving the movable chuck portion 41, a driving base shaft such as a single-axis robot may be used in addition to the ball screw 42.

  The moving chuck unit 41 includes a movable holding arm 51, an air cylinder 53, and an arm movable base 54. The movable holding arm 51 has an arc-shaped holding surface that is substantially the same as the outer peripheral arc of the lower blade 14, and a similar arc-shaped fitting convex portion 52 is formed at the center. A cylinder shaft is formed on the opposite side of the fitting projection 52 of the movable holding arm 51 and attached to the air cylinder 53. The air cylinder 53 is provided on the arm movable base 54, is screwed with the ball screw 42, and the moving chuck portion 41 moves on the shaft by the rotation of the ball screw 42.

  Then, the movable holding arm 51 in the movable chuck portion 41 is movable toward the lower blade 14 by the air cylinder 53 and protrudes, so that the movable holding arm 51 is shown in FIGS. 4 (A) and 4 (B). The holding surface 51 is in contact with the outer peripheral side surface of the lower blade 14 to be held, and at this time, the fitting convex portion 52 is fitted and held in the fitting groove 14A formed on the outer peripheral side surface of the lower blade 14. Therefore, the lower blade 14 to be held is moved in the axial direction of the shaft shaft 31 (see FIG. 9 described later).

  The moving chuck portion 41 is provided with a sensor holding body 55 on the lower side and a sensor 56 at the tip thereof, and a reflecting portion 57 is disposed via a sensor support body 58 in the horizontal direction. The sensor 56 and the reflection portion 57 constitute a detection sensor. Although the detection sensor is shown as a reflective sensor, it may be a transmissive sensor. In this case, a detection sensor is comprised by the light emission part (56) and the light-receiving part (57). That is, the detection sensor is a single sensor, and is moved integrally with the moving chuck portion 41 to detect the lower blades 14 for holding the lower blades 14 on the shaft shaft 31 by the movable holding arm 51. Is. The detection of each lower blade 14 by the detection sensor and the lower blade holding by the movable holding arm 51 will be described later. In addition, although the case where the detection sensor was provided in the movement chuck | zipper part 41 was shown, if it is the same movement as the said movement chuck | zipper part 41, you may move a detection sensor by another drive.

  Next, FIG. 5 shows a block diagram of a drive control unit in the slitter apparatus. In FIG. 5, the drive control unit 61 includes a control unit 62, a storage unit 63, and a drive unit 64, and a detection signal from the sensor 56 is input to the control unit 62. The control unit 62 includes a program that comprehensively controls the slitter device 12. The storage unit 63 is a memory or the like that mainly stores position information of each lower blade 14 on the shaft 31. The drive unit 64 is for rotating the ball screw 42 forward and backward, and is a motor (not shown) or the like. As a mechanism for moving the movable chuck portion 41 on the ball screw 42, a lever or the like that can manually rotate the ball screw 42 may be provided. The drive unit 64 also performs drive control of the air cylinder 53 of the moving chuck unit 41 and drive control of fixing and releasing the shaft shaft 31 of each lower blade 14.

  FIG. 6 shows a flowchart of lower blade position recognition in the slitter device, and FIG. 7 shows an operation explanatory diagram in FIG. In FIG. 6, first, the drive unit 64 drives the moving chuck unit 41 to the shaft shaft 31 at an initial position (for example, indicated by a broken line in FIG. 7A) (step (S) 1). From this position, the driving unit 64 is driven to move the moving chuck unit 41 on the ball screw 42. At this time, the lower blade is not held by the movable holding arm 51. When the sensor 56 detects the first lower blade 14-1 (S <b> 2), a detection signal is input to the control unit 62. Since the sensor 56 is a reflection type, it is an ON signal (“1”) when the lower blade 14 is not detected, and an OFF signal (“0”) when it is detected. The OFF signal is a detection signal. Become.

  When the control unit 62 inputs a detection signal, position information on the shaft 31 of the lower blade 14-1 is obtained from the driving amount from the initial position to the detection time of the detection signal. This position information is stored in the storage unit 63 in association with the lower blade 14-1 (S3).

  Here, the detection of the lower blade 14 by the sensor 56 is detected on the side surface S of the lower blade 14 in the sensor moving direction, as shown in FIG. 7B. Since the movable holding arm 51 fits and holds the fitting convex portion 52 in the fitting groove 14A of the lower blade 14, in the control portion 62, the fitting position (center position of the fitting groove 14A) is detected from the detection position S. Correction calculation may be performed using the known correction value L up to O), and this value may be stored in the storage unit 63 as position information. That is, the correction value L is a mechanically determined value. The correction value L is stored first, and the detection position S is not stored in the storage unit 63 as position information, but the detection position S and the correction value L are combined. It may be stored in the storage unit 63 as position information. The same applies to the detection of the other lower blades 14.

  Subsequently, the driving unit 64 is driven to move the moving chuck unit 41 on the ball screw 42, and when the sensor 56 detects the next lower blade 14-2 (S4), a detection signal is input to the control unit 62, and the initial stage Position information on the shaft axis 31 of the lower blade 14-2 is obtained from the driving amount from the position to the time of detection of the detection signal, and this position information is stored in the storage unit 63 in association with the lower blade 14-2. (S5). And the positional information by the detection signal of the sensor 56 is memorize | stored in the memory | storage part 63 about all the lower blades 14 (14-3 to 14-5) arranged in parallel on the shaft 31 (S6). ).

  Next, FIG. 8 shows a flowchart of the position change adjustment operation of the lower blade of FIG. 3, and FIG. 9 shows an operation explanatory diagram of FIG. Here, it is assumed that the moving chuck portion 41 is located at the initial position with respect to the shaft 31. Therefore, for example, when the lower blade 14-1 is a movement target, the position information of the lower blade 14-1 is read from the storage unit 63 (S11). The above-described correction calculation is performed on the read position information, and based on this value, the driving unit 64 moves the moving chuck unit 41 to the lower blade 14-1 and stops it (S12).

  At this time, the air cylinder 53 is driven to cause the movable holding arm 51 to protrude, and as shown in FIG. 4B, the fitting convex portion 52 is fitted into the fitting groove 14A of the lower blade 14-1. Hold (S13, FIG. 9). The held lower blade 14-1 is moved to a desired position on the shaft 31 (S14, FIG. 9), and the air cylinder 53 is retracted to release the holding by the movable holding arm 51 (S15).

  In this case, the elastic movable bodies 13A to 13D shown in FIGS. 2 (C) and 2 (D) are in the unlocked state due to the relationship between the lower blades 14 and the shaft shaft 31 when the lower blades are moved, and are fixed after the movement is completed. State. If there is a next lower blade to be moved (S16), S11 to S15 are repeated. If there is no lower blade to be moved (S16), the movable chuck 41 is driven to the initial position. The process ends (S17).

  In this way, a single detection sensor is provided to move integrally with the moving chuck unit 41. In the drive control unit 61, the moving chuck unit 41 is moved, and the detection sensor is used to move the lower part of the shaft 31. The position information of the blade 14 is obtained and stored in the storage unit 63, the moving chuck unit 41 is moved on the ball screw 42 based on the position information stored with respect to the lower blade 14 to be moved, and the movable holding arm 51 Since the lower blade 14 is held and moved to a desired position on the shaft 31, it is not necessary to provide a driving mechanism for each lower blade 14, and space saving of the apparatus can be realized correspondingly. In addition, when a plurality of lower blades 14 are provided, the lower blades can be brought close to each other, and the movable blade 51 can hold the lower blade 14 to be moved with high accuracy without placing a burden on the operator. Thus in which the lower blade 14 to be moved without providing a sensor for each lower blade 14 can be positioned with high accuracy at a desired position on the shaft axis 31.

  By the way, in the said embodiment, although detection of the sensor 56 (detection sensor) was based on the positional information acquisition on the shaft axis 31 of all the lower blades 14 before a lower blade movement, prior position information Instead, the drive control unit 61 may perform detection for obtaining a drive amount (position) from the initial position of the moving chuck unit 41 to the target lower blade when the target lower blade 14 is moved. In this case, the target lower blade can be specified by sequentially counting the lower blades detected by the sensor 56 from the initial position by the moving chuck unit 41.

  The slitter apparatus of the present invention can be used in a manufacturing apparatus or the like that forms a slit cut in a workpiece.

DESCRIPTION OF SYMBOLS 11 Label manufacturing apparatus 12 Slitter apparatus 13 Upper blade 14 Lower blade 14A Fitting groove 31 Shaft shaft 31A-31D Elastic movable body 41 Moving chuck part 42 Ball screw 51 Movable holding arm 52 Fitting convex part 53 Air cylinder 54 Arm movable base 56 Sensor 57 Reflector

Claims (1)

When forming a number of slit cuts corresponding to the object to be cut with a predetermined number of slitter blades provided on the shaft axis, the slit cuts of the object to be cut are formed by moving the slitter blades in the axial direction on the shaft axis. A slitter device for changing and adjusting the position,
A moving chuck portion provided on a moving shaft arranged in parallel with the shaft axis, provided with a movable holding arm movable on the slitter blade side, and holding and moving the slitter blade on the moving shaft;
A single detection sensor that detects the slitter blade that is moved integrally with the movable chuck portion and holds the slitter blade on the shaft axis by the movable holding arm;
The slitter apparatus characterized by having.

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