JP6690294B2 - Cutting machine, blade type replacement method, blade type storage part of cutting machine and blade type transfer method - Google Patents

Description

  The present invention relates to a cutting machine that cuts a material to be cut such as a sheet material with a blade die, and particularly relates to replacement of the blade die.

  A cutting machine (cutting machine, press machine) that uses a blade type is equipped with a movable platen that moves vertically and vertically, and a transport mechanism that moves a table on which a material to be cut such as a sheet material is placed. By punching a material or the like with a blade type such as a Thomson blade type attached to a movable plate, it can be processed into a desired shape.

  Since the die (two-dimensional shape) of the blade portion protruding from the blade substrate differs depending on the product shape, it is necessary to replace the blade die for each product. When exchanging the blade die, the operator carries the blade die corresponding to the product to the cutting machine, takes out the blade die fixed to the movable plate of the cutting machine, and then attaches a new blade die to the movable plate.

  Usually, the blade die is large and heavy, and thus it takes time to replace the blade die. In order to solve this, a cutting machine capable of mounting a plurality of blade dies has been proposed (see Patent Document 1). There, a head part that is movable in a sheet material width direction perpendicular to the sheet material feeding direction is provided, and blade dies having different blade part shapes are attached to the head part. Then, by moving the head portion, the desired blade mold is positioned at the cutting position.

JP, 2010-194621, A

  In the configuration of the cutting machine that attaches the blade type to the head part, there is a limit to the attachment and replacement of the blade type, and using a blade type with multiple blade parts installed for multiple cutting is limited by the size of the device. Have difficulty. Therefore, the production efficiency is reduced. Further, in the configuration in which the blade die is moved and positioned in the width direction, it is difficult to accurately align the blade die due to an assembly error or the like.

  Therefore, there is a demand for a cutting machine capable of exchanging the blade mold accurately, easily and surely without lowering productivity.

  The cutting machine according to the present invention includes an elevating mechanism that elevates and lowers a member (herein referred to as a movable plate) capable of holding a blade die with a receiving member that mounts a material to be cut, and a control unit that drives and controls the elevating mechanism. With. The receiving member is provided below the ascending / descending position of the movable plate, and may be movable in the transport direction. For example, it can be configured by a table or the like that can be moved along the cutting material conveying direction of the cutting machine body, and a plate-shaped receiving member or the like may be provided between the cutting material and the cutting material.

  A sheet-shaped material such as a thin sheet material or a roll material can be applied as the material to be cut, and a Thomson blade die or the like can be applied as the blade die. As the cutting machine, the blade type blade part is mounted on the movable platen with the blade part facing downward, and the cutting part is mounted on the movable platen with the blade part facing upward, and the material to be cut is placed on the upper side. It is also possible to arrange it in the.

  The cutting machine of the present invention further includes a blade type storage unit capable of storing at least one blade type, and a blade type transfer mechanism for transferring a predetermined blade type stored in the blade type storage unit to a movable plate. . Then, the control unit drives and controls the blade type transfer mechanism to transfer the specified blade type from the blade type storage unit to the movable platen. For example, a plurality of blade dies are received in the blade die storage unit, and one of the blade dies can be selected and transferred. The transferred blade mold may be installed on the movable plate as it is, or it may be automatically transferred and attached to the movable plate by an operator's auxiliary work.

  With a cutter equipped with a blade die, in the case of a die press that punches out a metal plate, the blade die is not fixed in advance because it is fixed to the main body of the device, and a blade die that punches out sheet-like materials such as resin is installed. Even in the cutting machine to be used, the blade type is exchanged under strict control so as to prevent damage to the blade edge of the blade type, and the blade type is mounted on the movable plate only manually by the operator. In the present invention, a new type of technical feature, which has not been provided in the conventional cutting machine, is provided in the cutting machine, and the stored blade mold is automatically transferred to the movable plate. Hold.

  The movable plate can be configured to include a blade-type holding mechanism that holds the blade dies by their side surfaces facing each other. Here, the side surface portion may include not only the side surface itself but also the upper surface and the lower surface of the blade die near the side surface, and a configuration in which the side surface portion is held without contacting the side surface is also included. For example, the blade mold may be configured to support the upper surface or the lower surface.

  For example, the blade die holding mechanism can hold the blade die in the vicinity of two opposite side surfaces, and sandwich and fix (clamp) the blade die. In this case, the blade die transfer mechanism can be configured to transfer the blade die from the blade die storage unit to the movable plate while holding the blade die by at least one side surface portion. The movable platen may be transferred to the blade mold replacement position, and for example, the blade plate can be positioned, installed, and attached to a position before the blade mold is finally fixed. Since the blade die is transferred in the same holding manner as the movable plate, it is not necessary to set the attitude, orientation, etc. of the blade die during transfer. After the blade die is transferred, the blade die can be fixed, for example, by sandwiching the blade die from both sides.

  The blade type transfer mechanism can transfer the designated blade type along the height of the blade type exchange position of the blade type holding mechanism. Since the transfer is carried out without any difference in height during transfer, the transfer can be carried out in the shortest time without the posture of the blade die being collapsed. The blade die replacement position may be determined according to the configuration of the movable plate. For example, when the blade die is clamped by sandwiching the side surfaces with each other, the state where the clamp is removed may be the blade die replacement position. Further, the top dead center or the bottom dead center of the stroke of the movable plate may be the blade die replacement position.

  The blade type transfer mechanism can transfer the blade type to one of the front and rear sides of the movable platen and insert the blade type into the movable platen at the blade type exchange position. Here, "front and rear of the movable plate" is a position along the conveyance direction in which the material to be cut is conveyed in the main body of the cutting machine, and the inlet side or the outlet side where the material to be cut moves to the movable plate side, respectively. It is referred to as the front side or the rear side. For example, the front side where the operator is present (the side where the material to be cut enters) interferes with the operation, so the blade die may be inserted from the rear side (the discharge side, the outlet side). If a blade type holding mechanism that holds the blade type on opposite side parts is provided, it is possible to install the blade type by simply inserting the blade type according to the holding posture of the blade type, and The structure does not have to be a characteristic structure.

  Considering positioning of the blade die on the movable plate with a simpler configuration, for example, a stopper may be provided on the side of the movable plate opposite to the blade die insertion side. The blade type transfer mechanism can push the blade type toward the movable plate. The blade type can stop by hitting the stopper.

  At the time of inserting the blade die, it is preferable to push the blade die in the conveyance direction of the material to be cut (for example, the table moving direction) in accordance with the holding posture of the blade die holding mechanism. For example, as the blade type transfer mechanism, it is possible to provide a pressing member that is movable along the direction of conveying the material to be cut so as to be in contact with the blade type, and to provide a blade type insertion mechanism that pushes the blade type through the pressing member. At this time, the side surface of the blade mold to be held is formed into a tapered shape or a curved surface with rounded edges, and the holding mechanism is also brought into contact with it so that the blade mold slides on the blade shape holding member. You can push it in smoothly.

  On the other hand, considering that the blade die is transferred to the vicinity of the movable platen without changing the holding posture of the blade die as much as possible, the blade die transfer mechanism is to move the designated blade die pulled out from the blade die accommodating section in the cutting material conveying direction. It is possible to provide a blade-type slide mechanism that transports the movable platen to one of the front and rear sides along the vertical direction. For example, a guide member provided in the blade type slide mechanism for guiding the moving direction of the blade type may be provided. When combined with the blade die insertion mechanism, the blade die can be pushed into the movable plate as it is if the blade die is held by the same side surface portions as the blade die holding mechanism.

  Considering the combination with the above-mentioned blade type slide mechanism, and considering that the blade type is transferred to the movable platen without changing the attitude and orientation of the blade type as much as possible, the blade type transfer mechanism is the designated blade type. It is possible to provide a blade-type pulling mechanism that pulls out from the blade-type storage unit while holding the blade-type storage unit at a portion that is not held by the storage unit. In this case, the blade drawing mechanism may be arranged below the guide member.

  On the other hand, in the blade die replacement process, it is desirable to automatically remove the blade die to be replaced. For example, the control unit can control the elevating mechanism according to the designated blade die transfer, lower the movable platen to place the attached blade die on the receiving member, and then raise it to the blade die replacement position. In this case, the elevating mechanism can move the stroke to the top dead center or the bottom dead center of the stroke with the movable plate as the blade die replacement position.

  In the case of a cutting machine equipped with a blade height adjustment mechanism that adjusts the blade height of the blade die held by the movable plate, the control unit is designed to prevent damage to the blade edge when the blade die is lowered. At the time of replacement, the movable platen may be returned to the reference position before the blade height adjustment of the movable platen blade type and then lowered.

  Incidentally, such a blade die removal process solves the technical problem of removing the blade die without damaging the blade tip without depending on the operator, even if the blade die transfer mechanism is not provided. It leads to technical contributions. Therefore, the movable platen capable of holding the blade die is provided with an elevating mechanism for elevating and lowering between the receiving member on which the material to be cut is mounted, and a control unit for driving and controlling the elevating mechanism. It is possible to configure a cutting machine that lowers the movable platen, places the mounted blade mold on the receiving member, and then raises it to the blade mold replacement position. At this time, the blade may be lowered at a descending speed that does not damage the cutting edge.

  In the blade type storage unit of the cutting machine, it is possible to provide a plurality of blade type holding members for holding the blade types in a horizontal posture by matching the posture of the blade types with the blade type holding posture of the movable platen. In this case, it is preferable to include a blade-type lifting mechanism that moves the plurality of holding members in the vertical direction. The control unit can control the blade type elevating mechanism and adjust the position of the designated blade type to the blade withdrawal position. Here, the blade type transfer position represents a position when the blade type transfer mechanism transfers the blade type transfer mechanism.

  The blade type storage unit can be arranged, for example, on the rear side of the side surface of the cutting machine opposite to the standing position of the operator. It becomes possible to transfer the blade die from the rear side of the movable plate over a short distance. Further, considering that the blade die is transferred to the movable platen without changing its orientation and orientation as much as possible, if the blade die holding member holds a plurality of blade die in the same orientation as the blade die orientation at the blade die replacement position. Good.

  In consideration of facilitating storage management of the blade dies by setting one blade die mounting position, it is possible to provide the door having the opening corresponding to the blade die size with respect to the blade die storage part. Further, the blade die withdrawal position can be located at a height different from that of the door, and it is possible to prevent the blade die during storage from being erroneously transferred.

  When accommodating a plurality of blade dies, it is desirable to automatically carry out and transfer the designated blade dies. For example, the cutting machine can be provided with a first scanner capable of reading the blade die information code written on each blade die. In this case, the control unit can record the read blade type information in the memory in association with the blade type storage position. When exchanging the blade dies, the control unit may move the designated blade die, which is defined based on the blade die information suitable for the material to be cut, from the storage position to the blade die transfer position.

  Further, in consideration of preventing erroneous blade type replacement by an operator's erroneous input operation, it is preferable to provide a second scanner capable of reading a code including blade type information suitable for the material to be cut. For example, when a bar code including product information such as a compatible blade type is attached to the work instruction sheet, the compatible blade type can be automatically replaced without error by reading the barcode.

  It is also possible to employ a configuration in which only the blade type storage unit is provided and the blade type transfer mechanism is not provided, and the operator stores the blade types, extracts the blade types, and attaches the blade types to the movable platen. In this case, a plurality of blade die holding members that hold the blade die in a horizontal posture, a blade die elevating mechanism that vertically moves the plurality of holding members, and a blade die elevating mechanism are controlled to set the position of the designated blade die to the blade. The cutting machine provided with the control unit adapted to the mold transfer position solves the technical problem of preventing the operator from accidentally taking out the compatible blade mold, and has a configuration that leads to a new technical contribution.

  On the other hand, even in the case of a cutting machine provided with only the blade type transfer mechanism without providing the blade type storage portion, the operator can take out the designated blade type and install the blade type on the movable platen. In this case, it is possible to move up and down a predetermined blade die housed in the blade die storage part capable of accommodating at least one blade die, between the blade die and a receiving member capable of holding the blade die and mounting the material to be cut. A cutter having a blade type transfer mechanism for transferring to the board and a control unit for driving and controlling the blade type transfer mechanism, which transfers the blade type to one of the front and rear sides of the movable plate, easily replaces the blade type. be able to.

  According to another aspect of the present invention, there is provided a method for exchanging a blade type of a cutting machine, wherein a predetermined blade type is transferred to a movable plate from a blade type storing section which is installed near a cutting machine body and which can store a plurality of blade types. This is a blade die replacement method, in which a designated blade die is selected from a plurality of accommodated blade die and transferred to a movable plate. For example, it is possible to push the specified blade mold toward the movable plate from one side of the movable plate, and along the height of the blade mold replacement position of the movable plate, from the blade mold storage part to the movable plate Can be transferred. Further, a blade die transfer method for a cutting machine according to another aspect of the present invention is capable of holding a predetermined blade die stored in a blade die storage part capable of accommodating at least one blade die. A blade type transfer method for transferring a cutting material to a movable plate which is moved up and down between the cutting member and a receiving member, wherein the blade type is transferred to one of the front and rear sides of the movable plate.

  According to the present invention, in the cutting machine, the blade mold can be replaced accurately, reliably and easily without lowering the production efficiency.

It is a schematic plan view of the cutting machine which is this embodiment. It is a rear view of a cutting machine. It is a schematic plan view showing a mechanism relating to blade type transfer from above the cutting machine. It is a partial plan view showing a pallet lifting mechanism of the blade-type storage box. It is the schematic block diagram which showed the blade type clamp mechanism in a movable board from the cutting machine main body front side. It is a block diagram of a cutting machine. It is a flow chart of blade type storage and blade type information recording processing performed by a control part. It is a figure showing the positional relation between the scanner of the blade type storage box and the bar code provided on the storage blade type. It is a flow chart of blade type exchange processing performed by a control part. This is a subroutine of step S204 of FIG. This is a subroutine of step S205 of FIG. It is a figure showing operation at the time of drawing of a blade type of a blade type drawing actuator. It is a figure showing operation at the time of drawing of a blade type of a blade type drawing actuator. It is a figure showing operation of a blade type slide mechanism at the time of blade type transfer. It is a figure showing operation of a blade type slide mechanism at the time of blade type transfer. It is a schematic diagram which looked at a model insertion mechanism from the side of a cutting machine. It is a typical perspective view of a blade type insertion mechanism.

  Next, embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic plan view of the cutting machine according to the present embodiment. Here, the figure seen from the operator standing position side surface of the cutting machine is shown. FIG. 2 is a rear view of the cutting machine. Here, the figure which saw the cutting machine main body from the back side is shown.

  The cutting machine 10 includes a cutting machine body 20, a blade-type storage box 40, and an operating device 50. The cutting machine main body 20 has a movable platen 30 on which blade dies are replaceably mounted, a crank mechanism (elevating mechanism) 25 for vertically moving the movable platen 30 with a predetermined stroke width, and a cut material S such as a sheet material. And a table 60 to be processed. The table 60 can be moved by a transfer mechanism (not shown here) driven by a ball screw. A resin receiving plate may be provided between the material to be cut S and the table 60.

  Here, a sheet material S having a predetermined length is mounted on the front side of the cutting machine body 20 as a material to be cut. However, here, the position where the material to be cut is mounted on the table 60 is closer to the operator's standing position than the movable platen 30, and the opposite side to the movable platen 30 is the rear side. The material S to be cut supplied is carried to the lower side of the movable platen 30 of the cutting machine body 20, punched out, and then discharged to the front side. Note that the sheet material and the roll material may be continuously supplied along the front-rear direction of the cutting machine body 20.

  An operating device 50 is arranged on the front side surface of the cutting machine body 20. The operator sets the punching speed, the pressing force, the blade height adjustment, and the like using the operating device 50, and also performs the setting operation during the blade die replacement and blade die storage work.

  As shown in FIG. 2, the blade-type storage box 40 arranged on the rear side of the cutting machine body 20 includes a blade-type storage shelf 42 in a housing 40H that can store a plurality of blade types. The blade type storage shelf 42 has a structure for holding the blade type T in the horizontal direction, and the blade type holder 45 (45A, 45B) having an L-shaped cross section is provided so that the blade portion TP of the blade type T faces downward. The mold T is held on both sides thereof. The blade-shaped holders 45A and 45B are vertically arranged at predetermined intervals. Here, the blade type of the Thomson blade is stored.

  Guide shafts 44A1, 44A2, 44B1, and 44B2 are inserted into bearings 44G at both ends of the blade mold holders 45A and 45B, and the vertical movement direction of the blade mold holders 45A and 45B is restricted. The guide shafts 44A1, 44A2, 44B1, 44B2 are held by the frame 43. Note that, in FIG. 2, only the guide shafts 44A1 and 44B1 visible from the rear side of the table are shown.

  The blade type storage shelf 42 is provided with five blade type holders 45A and 45B, and can store five blade types (the blade type storage space is referred to as a “pallet” here). In the following, the five pallets are numbered from No. 1 to No. 5 from the top, and the blade die holders 45A and 45B are referred to as blade die holders 45A1 to 45A5 and 45B1 to 45B1 as necessary.

  The housing 40H is composed of a transparent plate, and is provided with a door 40A having an opening corresponding to the blade die size. The five pallets No1 to No5 can be moved in the vertical direction along the guide shafts 44A1, 44A2, 44B1, and 44B2, and the operator opens the door 40A before the work and cuts the blade mold required for cutting into a predetermined pallet. To insert.

  In the present embodiment, the blade dies can be automatically replaced, the blade dies attached to the movable platen 30 are mounted on the table 60 and removed, and the blades selected / designated from the blade die storage box 40 are also removed. The mold is taken out, transferred to the movable platen 30 of the cutter body 20, and attached to the movable platen 30.

  FIG. 3 is a schematic plan view showing a mechanism related to blade type transfer from above the cutting machine. In FIG. 3, the casing portion of the cutter body 20 that covers the movable plate 30 is omitted.

  The cutting machine 10 includes a blade type transfer mechanism 21 that transfers the blade type from the blade type storage box 40 to the movable platen 30, and the blade type transfer mechanism 21 includes the blade type drawing mechanism 70, the blade type slide mechanism 80, and the blade type insertion mechanism. It is configured by the mechanism 90. The blade type drawing mechanism 70 is provided near the front side along the side surface of the cutter body 20 with respect to the blade type storage box 40, and the blade type slide mechanism 80 is a direction perpendicular to the moving direction M of the table 60. It is arranged along N, and is installed from the position of the blade-type drawing mechanism 70 to the position on the rear side of the movable platen 30. The blade-type insertion mechanism 90 is arranged on the rear side of the main body with respect to the blade-type slide mechanism 80, and extends along the moving direction of the table 60.

  The blade drawing mechanism 70 can hold the blade T in the storage box 40 and transfer it to the blade transfer position (denoted by reference numeral X). The clamp cylinder 72 and the clamp cylinder 72 can be moved in the table moving direction. The actuator 74 is driven along a direction parallel to M. The actuator 74 has a ball screw structure and includes a servo motor 76. Further, the clamp cylinder 72 is switched to a clamped or unclamped state by an air adjusting unit (not shown here).

  The blade type slide mechanism 80 can transfer the blade die T from the blade die transfer position X to the blade die insertion position Y along the table vertical direction N, and holds the blade die T on both side surfaces. 82A and 82B are provided. The blade-shaped holders 82A and 82B shown in FIG. 2 are screwed onto a pair of screw shafts 85A and 85B extending in the table vertical direction N.

  A belt mechanism 84 driven by a servomotor 81 is connected to the ends of the pair of screw shafts 85A and 85B. The screw shafts 85A and 85B are rotated by the belt mechanism 84, and accordingly the blade holders 82A and 82B are slid along the table vertical direction N. The length of the pair of screw shafts 85A and 85B is determined so that the blade holders 85A and 85B can be moved to the blade insertion position Y on the rear side of the movable platen 30.

  The blade die insertion mechanism 90 is capable of mounting the blade die T moved to the blade die insertion position Y on the movable platen 30, and the pressing plate portion 94 and the pressing plate portion 94 along the table moving vertical direction M. And an actuator 93 for moving the same. The actuator 93 is composed of an air cylinder here, and is capable of reciprocating in the table moving direction M by the air adjusting portion 92.

  In this way, the blade type transfer mechanism 21 that transfers the blade type in three stages transfers the blade type T from the blade type storage box 40 (the blade type storage rack 42) to the movable plate 30 along substantially the same plane, The blade drawing mechanism 70, the blade slide mechanism 80, and the blade insertion mechanism 90 move in conjunction with each other. Further, the blade type transfer mechanism 21 includes a pallet lifting mechanism 41 in the blade type storage box 40.

  FIG. 4 is a partial plan view showing the pallet lifting mechanism 41 of the blade-type storage box 40. Here, the blade type storage box 40 viewed from the side surface of the main body of the cutting machine opposite to the operating device 50 is shown.

  The blade die holders 45A1 to 45A5 and 45B1 to 45B extend along the moving direction M of the table 60, and their lengths are determined according to the size of the blade die T. The pallet elevating mechanism 41 has a ball screw structure and includes a pair of screw shafts 47A and 47B for moving the blade pallet P up and down, and along the table moving direction M of the guide shafts 44A1 and 44A2 and the guide shafts 44AB1 and 44B2. They are arranged at intermediate positions. However, in FIG. 4, only the screw shaft 47A is shown. Further, the bearing portion 44G for the guide shaft shown in FIG. 2 is omitted.

  The screw shafts 47A and 47B are provided with screwing portions 47A to 47E that screw with the blade holders 45A1 to 45A5 and 45B1 to 45B5, respectively, and are arranged at a predetermined interval from each other. When the screw shaft 47A is driven by the servomotor 49 via the belt mechanism 49A, the screw shaft 47B is also interlocked by the belt mechanism 49B (see FIG. 2) that connects the screw shaft 47A and the screw shaft 47B. As a result, the blade-shaped holders 45A1 to 45A5 and 45B1 to 45B5 move upward or downward while maintaining the predetermined intervals.

  The door 40A (see FIG. 2) formed to insert the blade mold T is located one pallet below the pulling position of the blade pulling mechanism 70. Then, a barcode-readable scanner S1 is installed on the side opposite to the location where the door 40A is formed. The scanner S1 reads a bar code attached to the blade die T, as will be described later.

  FIG. 5 is a schematic configuration diagram showing the blade type clamp mechanism in the movable platen 30 from the front side of the cutting machine body.

  The movable platen 30 is provided with blade mold clamps 32 (32A, 32B) for holding and fixing the blade mold T, and clamps and holds both side surfaces of the blade mold T. The blade type clamps 32A and 32B are integrally connected to the left screw shaft 34A and the right screw shaft 34B, respectively, and the left screw and the right screw shafts 34A and 34B are driven by a servomotor (not shown). Then, the blade clamps 32A and 32B move toward or away from each other accordingly.

  At both ends of the blade portion forming surface TS of the blade die T, tapered portions TT are formed along the entire side surface of the blade die. Protrusions 32TA and 32TB are formed on the blade type clamps 32A and 32B so as to match the tapered portions TT. When the blade type clamp 32 is set at the clamp position, the tapered portion TT contacts the protrusions 32TA and 32TB, so that the blade type T is firmly fixed. Further, as will be described later, a stopper (not shown here) that comes into contact with the blade die T when exchanging the blade die is provided at the front end of the cutter body of the blade clamps 32A and 32B.

  On the other hand, the movable platen 30 is provided with a blade height adjusting mechanism 37 at one end of a shaft 36 that connects the crank shaft of the crank mechanism and the movable platen 30. The blade height adjusting mechanism 37 is a screw mechanism that adjusts the relative height of the movable platen 30 to the table 60, and the blade height is changed according to the material of the material to be cut.

  FIG. 6 is a block diagram of the cutting machine 10.

  The control unit 22 includes a servo motor 25 for driving the crank mechanism, a transport mechanism driving unit 24 for moving the table 60, a fixed clamp driving servo motor 36, a pallet raising / lowering servo motor 49 in the above-mentioned blade die transfer mechanism, and a blade die pullout. The control signal is output to the servo motor for use 76, the servo motor for blade slide 84, the air adjusting units 71 and 92, the blade height adjusting motor 100, and the like to perform drive control.

  Further, the control unit 22 is connected to a position sensor 110 such as an encoder that detects the height of the movable plate (blade height position), a sensor S3 that detects opening and closing of the door 40A of the blade type storage box 40, an operating device 50, and the like. At the same time, data is written to and read from the memory 23 capable of recording cutting information and the like. The operating device 50 includes a display device (monitor) 51 for displaying information regarding cutting and the like, and a keyboard 52 for an operator to perform an input operation.

  The scanner S1 provided in the blade type storage box 40 can read a barcode (here, QR code (registered trademark)) TC written on the side surface of the blade type T, and the read blade type information is It is stored in the memory 23. The blade type information includes blade type (Thomson blade two-dimensional shape) data.

  On the other hand, the scanner S2 provided near the operating device 50 can read a bar code (here, a QR code (registered trademark)) Q added to the work instruction sheet created before the cutting work. In the work instruction sheet PA as the instruction medium, information such as the dimensions of the material to be cut, the number of shots, the feed amount, the blade height, and the blade type suitable for the product is described as the product information. It is included. The control unit 22 drives and controls the pallet lifting servomotor 49 of the blade type storage box 40 based on the product information read by the scanner S2.

  FIG. 7 is a flowchart of the blade type storage and blade type information recording processing executed by the control unit 22. FIG. 8 is a diagram showing a positional relationship between the scanner of the blade type storage box and the bar code provided on the storage blade type.

  When the blade type storage setting mode is set, the operator confirms an empty pallet that is not equipped with the blade type and selects the number of the empty pallet. By operating the move button, the blade holders 45A1 to 45A5 and 45B1 to 45B5 are entirely moved so that the specified pallet is at the blade insertion position, that is, the position of the door 40A (S101). The operator opens the door 40A and inserts the blade mold into the pallet at the position of the door 40A. When the opening / closing sensor S3 blade die insertion is detected by closing the door 40A (S102), the barcode TC attached to the inserted blade die is read by the scanner S1 (S103).

  As shown in FIG. 8, a bar code TC is written on the side surface of the blade die T in the insertion direction. When the blade die T is completely inserted into the blade die holders 45A and 45B, the distance between the barcode TC and the scanner S1 becomes such a close distance that they come into contact with each other. As a result, the blade type information can be read. The read blade type information is recorded in the memory 23 (S104). Steps S101 to S104 are repeatedly executed until the operator inserts the blade dies into all the pallets (S105).

  FIG. 9 is a flowchart of the blade type replacement process executed by the control unit 22.

  When the blade type replacement mode is set with the movable platen stopped at the top dead center (S201), it is determined whether or not the bar code Q written on the work instruction sheet PA has been read by the scanner S2 (S202). ). When it is determined that the bar code Q is read and the replacement start button is pressed (S203), the blade die attached to the movable platen 30 is removed, and a new blade die is set on the movable platen 30. The process is executed (S204, S205). The processing for exchanging these blade dies is simultaneously performed in parallel. When these processes are completed, the blade drawing mechanism 70, the blade slide mechanism 80, and the blade insertion mechanism 90 return to the positions before the blade replacement. It should be noted that the program relating to the blade changing process is stored in advance in a memory such as a ROM.

  FIG. 10 is a subroutine of step S204 of FIG. The blade mold removal process will be described with reference to FIG.

  In step S301, the movable platen 30 at the blade height adjusted position is raised to the original reference position. Normally, the distance from the surface of the cutting tool such as the Thomson blade to the cutting edge is set to a predetermined value, so that when the movable platen 30 is set to the reference position and the vertical stroke is performed, the cutting edge should match the surface position of the table 60. The position of the movable platen 30 with respect to the table 60 is determined.

  However, depending on the characteristics of the product material (softness, hardness, etc.), punching may be necessary so that the cutting edge is cut into the surface of the table 60. Therefore, the position of the movable platen 30 is slightly automatically adjusted based on the blade height information included in the bar code Q of the work instruction sheet PA. Therefore, if the movable platen 30 whose blade height has been adjusted (adjustment of the drawing pressure) is lowered as it is, the blade may hit the table 60 and be damaged. In order to prevent this, the finely adjusted position of the movable platen 30 is once retracted to a reference position where the cutting edge is not damaged. When a resin receiving plate or the like is interposed, the blade height is adjusted in consideration of the thickness.

  Then, the movable platen 30 is lowered to the bottom dead center position at a constant speed, and at the same time, the table 60 is moved backward by a predetermined amount (S302, S303). The descending speed is set to such a speed that the descending does not end before the movement of the table 60 ends. Then, the left screw shaft 32A and the right screw shaft 32B are driven to move the fixed clamps 32A and 32B to the unclamp position (S304).

  At this time, the left screw shaft 34A and the right screw shaft 34B (see FIG. 5) are fixed at a very low speed so that the fixed clamps 32A, 32B are not damaged by the blade tip of the blade T contacting (falling) the table 60. To move. By moving the fixed clamp 32 to the unclamp position, the blade die is mounted on the table 60 (S304).

  Then, the movable platen 30 moves to the top dead center position, and the table 60 moves toward the origin on the operator side (S305, S306). The operator carries the blade type carried on the table 60 to another place as a used blade type, or inserts it into the blade type storage box 40 again.

  FIG. 11 is a subroutine of step S205 of FIG.

  In step S401, based on the product information read out by the bar code Q of the work instruction sheet PA, a plurality of blade molds stored in the storage box 40 are matched with the product, that is, the product shape is adjusted. The blade type for punching is selected / designated. By driving and controlling the servo motor 49, the pallet holding the designated blade is moved to the blade drawing position (S401). Then, the blade die is pulled out by the blade die pulling mechanism 70 (S402).

  12A and 12B are diagrams showing the operation of the blade-type pulling actuator when pulling the blade type. When the clamp cylinder 72 moves from the origin position to the pull-out position AP and the designated blade die T is held by driving the air adjusting portion 71, the pull-out actuator 74 moves the clamp cylinder 72 to the open position. When the clamp cylinder 72 reaches the open position BP, the clamp cylinder 72 is switched to the unclamp state, releases the blade die T, and returns to the original position.

  13A and 13B are diagrams showing the operation of the blade-type slide mechanism 80 during the blade-type transfer. Before the blade die replacement, the blade die holders 82A and 82B are positioned at the blade die delivery position BP. The blade-type pull-out actuator 74 is located below the pair of screw shafts 85A and 85B (see FIG. 13B), and when the clamp cylinder 72 is in an unclamped (released) state, the blade-type pull-out actuator T that has been pulled out moves the blade-type holder 82A. , 82B. Then, the screw shafts 85A and 85B are driven to move the blade die T to the blade die insertion position CP (S403).

  When the blade die T moves to the blade die insertion position CP, the blade die insertion mechanism 90 pushes the blade die T toward the movable platen 30. Then, when the entire blade mold T is mounted on the fixed clamp 32, the fixed clamps 32A and 32B clamp the blade mold T (S404).

  FIG. 14 is a schematic view of the blade type insertion mechanism 90 as viewed from the side of the cutting machine. FIG. 15 is a schematic perspective view of the blade insertion mechanism 90. As shown in FIGS. 14 and 15, the blade-type insertion mechanism 90 includes an air cylinder 93 having a push rod 91 attached to its tip, and a push plate 99 supported by a guide plate 96. The push plate 99 is integrally connected to the push rod 91. The guide plate 96 is horizontally held by a support member (not shown), and its height is adjusted so that the pressing plate 99 can press the side surfaces of the blade molds mounted on the blade holders 82A and 82B. ing.

  When the blade type push plate 99 is pushed out by the air cylinder 93, the push plate 99 is moved by the guide plate 96 in the forward direction where the movable plate 30 is located. Along with this, the blade die T is pushed toward the front side of the cutter body by the blade pushing plate 99, and enters the fixed clamp 32 of the movable plate 30 while contacting both side surfaces thereof. The side surface taper portion TT of the blade die T and the protrusions 32TA and 32TB of the fixed clamps 32A and 32B allow the blade die T to smoothly move toward the back of the movable platen 30. Then, the stoppers 39A, 39B (see FIG. 14) provided at the front end portions of the fixed clamps 32A, 32B are hit and stopped.

  When the blade die T stops moving in the fixed clamps 32A and 32B, the blade die T is fixed by driving the left screw shaft 35A and the right screw shaft 35B. When the blade mold T is fixed, the position of the movable platen 30 is finely adjusted by adjusting the blade height (S405 in FIG. 11). The blade height position is determined based on the product information included in the bar code Q of the work instruction sheet PA.

  As described above, according to the present embodiment, in the cutting machine 10 in which the blade type storage box 40 is installed near the cutting machine body 20, the blade types to be used are stored in advance. The blade molds are stored sequentially. When the blade die is stored, the bar code TC given to the blade die is read by the scanner S1 and the blade die information of each blade die is recorded in the memory 23.

  On the other hand, when the bar code Q of the work instruction is scanned by the scanner S2 during the blade type replacement, the blade type information stored in the memory 23 is a pallet for storing the blade type suitable for the product information included in the barcode. Is selected based on, and moves to the blade die pulling position. Then, it is pulled out from the blade type storage box 40 by the blade type drawing mechanism 70 and sent to the blade type delivery position BP.

  The designated blade die pulled out is moved to the blade die insertion position CP on the rear side of the cutting machine body of the movable platen 30 by the blade die slide mechanism 80. Then, it is pushed into the fixed clamp 32 of the movable platen 30 and fixed by the blade type insertion mechanism 90.

  In addition, the movable platen 30 is returned to the reference position where there is no blade height adjustment in accordance with the transfer of the designated blade die, and then lowered to the bottom dead center position, and the held blade die is released to the table 60. Put. After that, it returns to the stroke top dead center position, which is the blade die replacement position, for the new blade die installation.

  With the blade type storing function, the blade type transferring function, and the blade type removing function as described above, once the blade type is stored, the designated blade type is automatically replaced with the movable platen 30. By arranging the blade type storage box 40 on the side opposite to the operator standing position of the cutter body 20 and on the table rear side with respect to the movable plate 30, the structure of the conventional cutter 10 is hardly changed. The mold can be automatically transferred.

  In particular, the blade type transfer mechanism determines a reference position, which is the top dead center position of the movable platen 30 and is not subjected to the extraction pressure adjustment, as the blade type exchange position, and transfers the blade types in a plane along the blade type exchange position. It is possible to set the blade type transfer distance to the shortest distance. Further, since the blade die posture is not largely changed during the transfer, the blade die can be safely transferred.

  Further, the bar code TC written on the blade die T is read to record the blade die information, and the bar code Q of the work instruction sheet PA is read to select and designate the blade die suitable for the product, so that the operator gives a work instruction. It is possible to prevent a blade type different from the designated blade type described in the manual from being accidentally attached to the movable plate.

  Regarding the blade type storage box 40, since the arrangement direction of the blade types is aligned with the blade type mounting direction on the movable platen 30 and the blade portions of the blade types are directed downward, the blade types can be easily transferred and mounted. There is. Further, by providing the door 40A having an opening and specifying the blade mold insertion position, the insertion work into the blade mold storage box 40 is facilitated. Further, since the blade die withdrawal position and the blade die insertion position are set at different heights, it is possible to prevent the insertion work and the withdrawal work from being performed at the same time. This also facilitates scanning when inserting the blade. The blade type storage box may store only one blade type.

  By providing the scanner S1, it is possible to automatically acquire the blade die information before the blade die replacement by merely housing the blade die. It should be noted that instead of the scanner, the operator may input the blade type information and the pallet position in association with each other. The operator may also perform an input operation for product information.

  Regarding the removal of the blade die when exchanging the blade die, an operator may manually remove the blade die in advance. Further, the blade type transfer mechanism is not limited to the specific actuator shown in the above embodiment. Further, the position of the blade type storage box can be arranged in various positions, and the blade type transfer path may be determined in accordance with it. Further, in the blade die transfer process, the blade die may be transferred while holding portions other than both side surfaces of the blade die. Further, the blade die replacement position may be set at a position other than the top dead center of the movable plate stroke, and the blade die transfer may be performed while changing the blade die transport height.

  The configuration of the cutting machine described above can be applied to a cutting machine, a cutting machine, a cutter, a die-cutting machine, or a pressing machine that performs cutting with a blade die on various cut materials other than sheet materials and roll materials. Is. Further, blade types other than the Thomson blade type can be applied, and the size and shape of the blade type are arbitrary.

10 Cutting Machine 20 Cutting Machine Main Body 21 Blade Type Transfer Mechanism 22 Control Section 25 Crank Mechanism (Elevating Mechanism)
30 Movable Plate 32 Fixed Clamp 40 Blade Type Storage Box (Blade Type Storage Section)
41 Pallet lifting mechanism (blade type transfer mechanism, blade type lifting mechanism)
42 Blade Type Storage Shelf (Blade Type Storage Section)
45 Blade Type Holder 50 Operating Equipment 60 Table 70 Blade Type Extraction Mechanism (Blade Type Transfer Mechanism)
80 blade type slide mechanism (blade type transfer mechanism)
85A, 85B Screw shaft (guide member)
90 blade insertion mechanism (blade transfer mechanism)
96 Push plate (push member)
PA Work instruction sheet Q Bar code S1 Scanner S2 Scanner T Blade type TT Taper section TC Bar code

Claims (25)

An elevating mechanism that elevates and lowers a movable plate capable of holding a blade mold with a receiving member on which a material to be cut is mounted,
A blade type storage unit capable of storing at least one blade type,
A blade type transfer mechanism for transferring a predetermined blade type stored in the blade type storage portion to the movable plate,
A control unit for driving and controlling the lifting mechanism,
The control unit drives and controls the blade type transfer mechanism to transfer a specified blade type from the blade type storage unit to the movable plate,
The control unit controls the elevating mechanism according to the designated blade die transfer, lowers the movable platen to mount the attached blade die on the receiving member, and then raises the blade die replacement position. And a cutting machine. The movable plate has a blade type holding mechanism for holding the blade type on opposite side surfaces,
The cutting machine according to claim 1, wherein the blade die transfer mechanism transports the blade die from the blade die storage portion to the movable plate while holding the blade die by at least one side surface portion. An elevating mechanism that elevates and lowers a movable plate capable of holding a blade mold with a receiving member on which a material to be cut is mounted,
A blade type storage unit capable of storing at least one blade type,
A blade type transfer mechanism for transferring a predetermined blade type stored in the blade type storage portion to the movable plate,
A control unit for driving and controlling the lifting mechanism and the blade-type transfer mechanism,
The blade type transfer mechanism pulls out a designated blade type from the blade type storage portion along the height of the blade type exchange position of the movable plate, and maintains the height of the blade type exchange position of the movable plate. While moving the drawn blade die to one side of the front and rear of the movable plate along a direction perpendicular to the cutting material conveyance direction, and along the cutting material conveyance direction, to the blade die replacement position. A cutting machine for transferring to a movable plate.   The cutting machine according to claim 3, wherein the blade type transfer mechanism transfers the designated blade type to a rear side of the movable plate. The movable plate has a stopper on the side opposite to the blade type insertion side of the movable plate,
The cutting machine according to any one of claims 1 to 4, wherein the blade die transfer mechanism pushes the blade die toward the movable plate.   The blade type transfer mechanism has a pressing member movable along the cutting material conveyance direction so as to be in contact with the blade type, and has a blade type insertion mechanism for pressing the blade type through the pressing member. The cutting machine according to claim 5, wherein:   7. The blade type transfer mechanism has a blade type slide mechanism for transferring a designated blade type drawn out from the blade type storage portion along a cutting material conveyance direction. The cutting machine described in.   The blade type transfer mechanism has a blade type pulling mechanism that pulls out the designated blade type from the blade type storing section while holding the designated blade type in a portion not held by the blade type storing section. The cutting machine according to any one of 7.   The blade type transfer mechanism is positioned below a guide member that guides the blade type moving direction provided in the blade type slide mechanism, and holds the designated blade type in a portion that is not held in the blade type storage section. Meanwhile, the cutting machine according to claim 7, further comprising a blade-type pulling mechanism that pulls out from the blade-type housing portion.   The control unit drives and controls the receiving member, moves the receiving member from the front side to the rear side of the movable plate in accordance with the lowering of the movable plate, and raises the movable plate. The cutting machine according to claim 1, further comprising moving the receiving member from a rear side of the movable plate toward a front side thereof.   The cutting machine according to claim 1, wherein the elevating mechanism moves the movable plate to a stroke top dead center or a stroke bottom dead center with the movable plate being a blade die replacement position. Further comprising a blade height adjusting mechanism for adjusting the blade height of the blade die held by the movable plate,
12. The cutting machine according to claim 1, wherein the control unit, when the blade die is replaced, returns the movable plate to a reference position before adjusting the blade height of the movable plate mounting blade die and then lowers the movable plate. . The blade type storage portion has a plurality of blade type holding members for holding the blade type in a horizontal posture,
The blade type transfer mechanism includes a blade type elevating mechanism for moving the plurality of blade type holding members in the vertical direction,
The cutting machine according to any one of claims 1 to 12, wherein the control unit controls the blade type elevating mechanism to adjust a position of the designated blade type to a blade type transfer position. An elevating mechanism that elevates and lowers a movable plate capable of holding a blade mold with a receiving member on which a material to be cut is mounted,
A blade type storage unit capable of storing at least one blade type,
A blade type transfer mechanism for transferring a predetermined blade type stored in the blade type storage portion to the movable plate,
A control unit for driving and controlling the lifting mechanism,
The control unit drives and controls the blade type transfer mechanism to transfer a specified blade type from the blade type storage unit to the movable plate,
The blade type storage portion has a plurality of blade type holding members for holding the blade type in a horizontal posture,
The blade type transfer mechanism includes a blade type elevating mechanism for moving the plurality of blade type holding members in the vertical direction,
The control unit controls the blade type lifting mechanism, aligns the position of the designated blade type with the blade type transfer position,
The cutting machine, wherein the blade type storage section has a door provided with an opening corresponding to the size of the blade type.   The cutting machine according to claim 14, wherein the blade-shaped transfer position is located at a height different from that of the door.   The cutting machine according to any one of claims 13 to 15, wherein the blade die holding member holds a plurality of blade die in the same orientation as the blade die orientation at the blade die replacement position.   The cutting machine according to any one of claims 13 to 16, wherein the blade type storage section is arranged on the rear side of the side surface of the cutting machine opposite to the standing position of the operator. Equipped with a first scanner that can read the blade type information code written on each blade type,
18. The cutting machine according to claim 13, wherein the control unit records the read blade type information in a memory in association with the blade type storage position.   The control unit moves a designated blade die, which is defined based on blade die information suitable for a material to be cut, which is to be cut, from the storage position to the blade die transfer position when the blade die is replaced. The cutting machine according to any one of Items 13 to 18.   The cutting machine according to any one of claims 13 to 19, further comprising a second scanner capable of reading a code including blade type information suitable for a material to be cut. A blade die replacement method for transferring a predetermined blade die to a movable plate, from a blade die storage part that is installed near the cutting machine body and is capable of accommodating a plurality of blade die,
The movable platen is lowered, the blade die mounted on the movable platen is placed on the receiving member for mounting the material to be cut, and then the movable platen is raised to the blade die replacement position,
A blade die exchange method for a cutting machine, characterized in that a designated blade die is selected from a plurality of blade die stored in the blade die storage section and transferred to the movable plate at a blade die exchange position .   22. The blade die replacement method for a cutting machine according to claim 21, wherein the designated blade die is pushed toward the movable board from one of the front and rear sides of the movable board.   23. A blade die replacement method for a cutting machine according to claim 21, wherein the designated blade die is transferred from the blade die storage portion to the movable board along a blade die replacement position height of the movable board. . A storage unit of a cutting machine capable of storing a plurality of blade molds,
A plurality of blade die holding members arranged vertically, each holding the blade die in a horizontal posture,
A blade type lifting mechanism that moves the plurality of blade type holding members in the vertical direction,
A blade type storage unit for a cutting machine, comprising: a door having an opening corresponding to the blade type size. Transfer a predetermined blade type stored in a blade type storage unit capable of storing at least one blade type to a movable plate that can move the blade type up and down with a receiving member on which a material to be cut is mounted. And a blade type transfer method,
By the blade type transfer mechanism, the designated blade type is pulled out from the blade type accommodating portion along the height of the blade type exchange position of the movable plate, while maintaining the height of the blade type exchange position of the movable plate. , The drawn blade die is transferred to one of the front and rear sides of the movable plate along a direction perpendicular to the cutting material transport direction, and is in the blade die replacement position along the cutting material transport direction. A blade type transfer method for a cutting machine, comprising transferring the blade to the movable plate.

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