JP5479026B2 - Column material pre-cut processing machine - Google Patents

Description

  The present invention relates to a technique for cutting a notch or a groove by a cutter on four surfaces of a middle portion of a pillar material with a single clamp without rolling the pillar material, in a precut working machine for a pillar material for a wooden house.

  Conventionally, as shown in FIG. 13, along the conveying path, a tenon cutter, a chain only, a round hole drill, a router bit, and a grooved cutter are provided, and a unit for rolling the wood on the supply side (for lifting and lowering) A column material processing machine provided with a cylinder and a cylinder for rotation is known (Patent Document 1).

  As shown in FIG. 14A, there is also known a column material processing machine that includes a tenon cutter and a peripheral edge cutter coaxially, and a roll claw immediately before a processing position by these cutters (Patent Document). 2). The peripheral edge cutter performs processing of “notches” and “grooves” such as a peripheral edge to the middle part of the column material, a window stand, a window lintel, and a holding, and is a cutter having a larger diameter than the mortise cutter.

  Furthermore, as shown in FIG. 14B, using this type of column material processing machine, a plurality of interconnected bundles are processed from a single square member and cut into individual bundle members in a later step. A processing method has also been proposed (Patent Document 3).

Japanese Patent Laid-Open No. 9-29704 (FIG. 1, FIG. 6, FIG. 12, FIG. 13) Japanese Patent Publication No. 1-55963 (FIG. 3) Japanese Patent No. 4008536 (FIG. 12)

  According to the devices disclosed in Patent Documents 1 and 2, since the mortise removing cutter can face the four surfaces of the column material at the end, it is necessary to perform an operation such as unclamping the column material and rolling it over in mortise processing. There is no.

  However, in order to perform the peripheral edge processing on the four sides of the middle part of the column with the apparatus of Patent Document 1, what is as follows: clamping → processing to the upper surface → return → 90 ° rollover → feed → clamp → processing →. Clamping / unclamping, returning / feeding, and rollover must be repeated. Even in the apparatus of Patent Document 2, up to three surfaces can be implemented by one clamping, but in order to perform processing on the last one surface, unclamping → rolling → clamping must be executed. As a result, the conventional column material processing machine has a problem that it takes a long time to process the four surfaces on the intermediate portion of the column material.

  In particular, in order to process a plurality of interconnected bundles as proposed in Patent Document 3 from a single square member, even in the apparatus of Patent Document 2, clamping → three-side processing → unclamp → rolling → clamp → remaining One-side machining → unclamp → feed → clamp → three-side machining → unclamp → rolling → remaining one-side machining →. As a result, there is a problem that the effect of increasing the efficiency by processing a plurality of bundles from a single square in an interconnected state is not sufficiently exhibited.

  Therefore, the present invention enables four-side processing to the middle part of the wood with one clamp, processing of notches and grooves such as a peripheral edge, a window sill, a window lintel, and holding, and a plurality of interconnected states. An object of the present invention is to provide a column material pre-cut processing device suitable for shortening the wood processing time when processing a bundle of slabs from a single square.

  In order to achieve the above object, the column pre-cutting machine according to the present invention includes a cutter rotated by a spindle motor including a spindle arranged in parallel with the longitudinal direction of the workpiece, and the upper and lower surfaces and front and rear sides of the workpiece. A cutter unit that performs cutting by contacting the surface is provided, and the following configuration is provided.

  (A) The cutter unit supports the spindle motor in a state in which the spindle motor can pivot about a pivot support shaft parallel to the spindle, and moves the spindle motor back and forth, and moves the spindle motor back and forth. Spindle motor that pivots around a support shaft and switches between a first state in which the spindle motor is rotated in a direction away from the workpiece conveyance path and a second state in which the spindle motor is rotated in a direction approaching the workpiece conveyance path side Provide a posture switching mechanism.

  (B) When cutting the intermediate portion of the workpiece, the main spindle motor is used for cutting of the front and rear surfaces of the workpiece on the surface opposite to the cutter unit across the workpiece conveyance path. Cutting as the first state is performed on the surface in the rotating direction when the main shaft motor is rotated from the second state to the first state among the upper and lower surfaces of the workpiece. The main shaft motor is executed in the second state, and the main shaft motor attitude switching mechanism is driven so that the other surfaces are cut in either the first or second state. Provide a control device.

  The state in which the main shaft portion is rotated upward or downward using the turning function corresponds to the first state, and the main shaft is extended in the direction of the workpiece conveyance path so that the longitudinal length of the cutter unit becomes longer. The rotated state corresponds to the second state. In the column material pre-cut processing machine of the present invention, the cutter unit sandwiches the workpiece conveyance path among the front and rear surfaces of the workpiece intermediate portion in the first state where the spindle motor is not rotated to the workpiece conveyance path side. Since the cutting process is performed on the opposite surface, the interference between the cutter unit and the workpiece can be avoided. Note that the other surface of the front and rear surfaces can be cut in a state avoiding interference with the workpiece, whether in the first state or the second state. On the other hand, with respect to the upper and lower surfaces of the workpiece, if the first state is a state in which the spindle motor is rotated upward, the upper surface is processed in the second state, so that interference can be avoided. On the contrary, if the first state is a state in which the spindle motor is rotated downward, the processing of the lower surface is executed in the second state, so that interference can be avoided. In each case, interference can be avoided if the surface opposite to the upper and lower surfaces is executed in either the first or second state. As described above, according to the present invention, the surface that may cause interference in the first state is the first surface if the roll is not turned over when one spindle motor cuts the intermediate portion of the workpiece. It is possible to surely avoid interference by performing cutting in the state 2 and conversely in the second state, the surface that may cause interference in the second state is cut in the first state. ing. That is, by performing the switching operation of the attitude of the spindle motor, it is possible to prevent the parts near the spindle motor from interfering with the workpiece, and to perform cutting on all four surfaces of the workpiece intermediate portion with one spindle motor. Is possible. As a result, it is not necessary to provide the cutter unit with a plurality of spindles or an expensive device such as a robot arm. Alternatively, it is not necessary to provide a rollover device for peripheral edge processing. For example, in the apparatus of Patent Document 1, it is necessary to return the work material to the rollover device, roll it over, and then send the work material to the processing machine to perform cutting. No action is required.

  More specifically, the columnar pre-cut processing machine of the present invention made to achieve the above-described object is provided with a cutter rotated by a spindle motor including a spindle arranged in parallel with the longitudinal direction of the workpiece. A cutter unit that performs cutting by bringing the material into contact with the upper and lower surfaces and the front and rear surfaces of the material is provided.

  (A1) The cutter unit includes a column erected from a base, an elevating body attached to the column so as to be movable up and down, a longitudinally moving body attached to the elevating body so as to be movable back and forth, A spindle mounting body attached to the front end of the longitudinally moving body on the workpiece conveyance path side, and a spindle motor attached to the spindle mounting body.

  (A2) The spindle mounting body is attached to the longitudinally moving body so as to be capable of turning about a turning support shaft parallel to the spindle.

(A3) a first state in which the spindle mounting body is swung around the pivot support shaft , the spindle mounting body becomes a substantially horizontal mounting surface, and the spindle motor is erected on the upper side; A spindle motor attitude switching mechanism that switches between a second state in which the spindle motor is tilted to the workpiece conveyance path side with a substantially vertical mounting surface.

  (B1) When cutting the intermediate portion of the workpiece, the main spindle motor is used for cutting of the front and rear surfaces of the workpiece on the surface opposite to the cutter unit across the workpiece conveyance path. Execution as the first state, cutting of the upper and lower surfaces of the work piece with respect to the upper surface is performed with the spindle motor as the second state, and for the other surfaces the first or second A control device for driving the spindle motor attitude switching mechanism so as to perform cutting in any of the states;

  The spindle motor attitude switching mechanism in the columnar material precut processing machine of the present invention having a more specific configuration includes, for example, a turning support body having a turning support shaft integrally attached to the front end portion of the longitudinally moving body on the conveyance path, and this turning support. When the spindle mounting body is attached to one end of an arm that can pivot about the axis, the other end of the arm is connected to the rod of the pneumatic cylinder, and the spindle is moved when the rod of the pneumatic cylinder is moved to the forward end. What is necessary is just to comprise so that a mounting body may face a horizontal direction, and when a rod of a pneumatic cylinder is moved to a retreat end, a spindle mounting body faces a vertical direction. Since this spindle material pre-cut processing machine has the first state in which the main shaft motor faces upward, the main shaft motor can perform cutting while being firmly supported by the longitudinally moving body from below and avoid interference. In addition, processing is performed in an advantageous posture in terms of strength. In addition, since the upward direction is the best in terms of strength, the configuration of (B1) is “(B2) When cutting the intermediate portion of the workpiece, it is applied to the front and rear surfaces and the lower surface of the workpiece. A control device that drives the spindle motor attitude switching mechanism so that cutting is performed with the spindle motor in the first state, and cutting on the upper surface of the workpiece is performed with the spindle motor in the second state. If it is said, the advantage in terms of strength is further increased.

  These column material precut processing machines of the present invention may further have the following configuration.

  (C) When the control device turns the spindle motor from the first state to the second state, the control device moves the spindle motor to a position separated from the conveyance path by a predetermined distance or more. And configured as a device for executing the turning operation.

  By also having the configuration of (C), the column material precut processing machine of the present invention solves a new problem that the workpiece and the spindle motor peripheral parts of the cutter unit collide when the attitude of the spindle motor is switched. can do.

  These column material precut processing machines of the present invention may further have the following configuration.

  (D) The said control apparatus judges whether the said precut process data is an instruction | indication of the process with respect to the intermediate part of the said workpiece based on the precut process data which should be processed with the said cutter unit. When the position determination processing and the result of the determination processing indicate processing on the intermediate portion of the workpiece, it is determined whether or not the precut processing data includes data for processing the upper surface of the workpiece. When the processing surface determination process does not include data for processing the upper surface of the workpiece, the turning operation to the second state is executed by the spindle motor attitude switching mechanism. It is configured as a device that does not control.

  By providing this configuration (D), the control device accurately determines whether or not posture switching is necessary based on pre-cut machining data to be machined by the cutter unit, and performs only the minimum necessary posture switching operation. Therefore, the waste of operation can be further reduced.

  According to the present invention, it is possible to process the four surfaces of the intermediate portion of the column material with a single clamp in the processing of notches and grooves such as the peripheral edge to the intermediate portion of the column material, the window base, the window lintel, and the holding. . As a result, the efficiency of processing the notches and grooves such as the peripheral edge to the middle part of the column material, the window sill, the window lintel and the holding is improved. Further, since it is not necessary to employ a complicated structure such as providing a plurality of main shafts in order to increase the processing efficiency, the cost of the processing machine can be reduced.

It is a top view showing the whole pillar material precut processing apparatus of Example 1. FIG. It is a top view of the state which performs the tenon processing of the edge part of a pillar material with the pillar material precut processing apparatus of Example 1. FIG. It is a top view of the state which performs the process of the notch and groove | channels, such as a surrounding edge to the intermediate part of a pillar material, a window stand, a window lintel, and a holding | maintenance with the pillar material precut processing apparatus of Example 1. FIG. It is a front view of the tenon removal unit in the pillar material precut processing apparatus of Example 1. It is a right view of the tenon removal unit in the pillar material precut processing apparatus of Example 1. It is a top view of the tenon removal unit in the pillar material precut processing apparatus of Example 1. FIG. 6 is a right side view of the column material precut machining apparatus according to the first embodiment when machining the front and rear surfaces and the lower surface of the middle portion of the column material at the tenon removing main shaft portion of the tenon removal unit. In the pillar material precut processing apparatus of Example 1, it is a right view when processing the intermediate part upper surface of a pillar material in the tenon removal main-shaft part of a tenon removal unit. It is a flowchart which shows the processing content of the process control using the tenoning unit performed in an Example. It is a flowchart which shows the processing content of the process control using the tenoning unit performed in an Example. It is a schematic diagram which shows operation | movement of the mortise spindle motor in the case of the top mortise process performed in an Example. It is a schematic diagram which shows operation | movement of the tenoning spindle motor in the case of the periphery edge process performed in an Example. It is explanatory drawing of a prior art. It is explanatory drawing of a prior art.

  In the following, it is possible to process four sides to the middle part of wood with a single clamp, and to process a chip such as a peripheral edge, a window sill, a window lintel, a holding, a groove, or a plurality of interconnected bundles A column material precutting apparatus suitable for shortening a wood processing time when processing from a single square bar will be described in an embodiment with reference to the accompanying drawings.

  As shown in FIG. 1, the column material pre-cut device 10 according to the first embodiment is parallel to the feeding roller conveyor 2 that feeds the processing material W <b> 1 fed from the wheel conveyor 1 into the processing machine body 5 and the rear of the feeding roller conveyor 2. And a remaining material discharge roller conveyor 3 for discharging the remaining material W3 generated by cutting both ends, and a remaining material loading wheel conveyor for discharging the remaining material W3 carried by the remaining material discharge roller conveyor 3 to the front side. 4, a transfer positioning device 6 that performs positioning and transfer at the time of processing by the processing machine main body 5, a take-out roller conveyor 7 that takes out the processed column material W <b> 2 from the processing machine 5, and a processed post-taken column And a wheel conveyor 8 for carrying the material W2 to the front side.

  The processing machine body 5 includes a circular saw unit 5a, a mortise removing unit 5b, a surface processing unit 5c, a rollover device 5d, and a roller conveyor 5e with a clamp device. The circular saw unit 5a includes a circular saw shaft on which a circular saw is mounted, and performs both-end cutting of the workpiece W1. As shown in FIG. 2, the mortise removing unit 5b includes a mortise removing spindle motor 519 that moves up and down, moves back and forth, and turns. The surface processing unit 5c includes a cutter axis, a router axis, a boring axis, and the like. The rollover device 5d is, for example, the same device as the rollover claw of the device disclosed in Japanese Patent Publication No. 1-55963, and rotates the workpiece w1 by 90 degrees. The roller conveyor 5e with a clamp device is composed of a roller conveyor, a horizontal vice, an upper clamp, and the like in the processing machine main body. The transfer positioning device 6 includes a pillar material gripping device and a moving device.

  Next, a detailed configuration of the mortise removing unit 5b will be described with reference to FIGS. As shown in FIGS. 4 and 5, the tenon removing unit 5 b includes a bed 501, a column 502 erected vertically on the upper surface of the bed 501, an elevating body 507 that moves up and down along the right side surface of the column 502, A longitudinally moving body 510 that moves horizontally in the longitudinal direction along the right side surface of the elevating body 507, a revolving body 515 attached to the rear end of the longitudinally moving body 510, and a mortise removing motor 519 attached to the revolving body 515. I have.

  Two rows of guide rails 503 and 503 are attached to the right side surface of the column 502 so as to extend in the vertical direction. Further, four linear bearings 506, 506,... That fit with the guide rails 503, 503, respectively, are attached near the four corners of the left side surface (the back side in FIG. 5) of the lifting body 507. . The elevating body 507 is guided by the guide rails 503 and 503 and is moved up and down by the ball screw 504. The ball screw 504 is composed of a male screw 504 a rotatably attached to the column 502 and a female screw 504 b attached to the lifting body 507, and the lifting body is controlled by a servo motor 505 installed at the upper end of the column 502. It is the structure which performs the raising / lowering operation | movement of 507. FIG.

  Four linear bearings 508, 508,... Are attached to the right side surface (the front side in FIG. 5) of the lifting body 507 with the fitting holes in the horizontal direction. Then, two rows of guide rails 509, 509, which are attached to the left side surface of the longitudinally moving body 510 (the back side in FIG. 5) so as to extend in the horizontal direction, are fitted into the linear bearings 508, 508,. doing. The forward / backward moving body 510 is guided by guide rails 509 and 509 and is moved back and forth by a ball screw 511. The ball screw 511 includes a male screw 511 a that is rotatably attached to the lower side of the longitudinally moving body 510 and a female screw 511 b that is attached to the elevating body 507. The ball screw 511 is positioned by a servo motor 512 installed at the front end of the longitudinally moving body 510. It is the structure which performs the back-and-forth operation | movement of the back-and-forth moving body 510, controlling.

  The swivel body 515 is supported so as to be pivotable about a swivel support shaft 514 provided on a bracket-like swivel support body 513 integrally attached to the rear end of the longitudinally moving body 510. As shown in FIG. 5, in the revolving body 515, a portion extending above the revolving support shaft 514 constitutes a base portion 515 a on which the tenon removing spindle motor 519 is placed, and a portion extending downward is an arm that receives the revolving driving force. Part 515b is configured. A support fitting 516 is attached to the right side surface (front side in FIG. 5) of the longitudinal moving body 510, and the pneumatic cylinder 517 is placed on the right side of the longitudinal moving body 510 so that the head portion 517a is supported by the support fitting 516. It is attached to the surface. A pneumatic cylinder rod end fitting 518 attached to the rod tip 517 b of the pneumatic cylinder 517 is connected to the arm portion 515 b of the swing body 515.

  The tenon removing spindle motor 519 is placed on the base portion 515a of the revolving body 515 as shown in FIGS. The mortise removing spindle motor right end 520 serves as a cutter mounting portion, and a lower mortise removing cutter 522 is mounted. Further, the mortise removing spindle motor left end 521 is also a cutter attachment portion, and the upper mortise removal cutter 523 and the peripheral edge cutter 524 are attached coaxially. The peripheral edge cutter 524 has a larger diameter than the upper mortise cutter 523 and is attached so as to be positioned on the motor side.

  In addition, a conveyor roller 525 is installed in the vicinity of the tenon removing spindle motor 519 as shown in FIG. The conveyor roller 525 is retracted to a position where it does not interfere with the mortise spindle motor 519 or the swiveling body 515 during operation of the mortise spindle motor 519 (during machining), and when the mortise spindle motor 519 waits (work material W). Is located at the same height as the other compare (2, 5e, 7). This operation is performed by a pneumatic cylinder (not shown).

  Next, the operation of the embodiment will be described. First, the entire process will be described (see FIG. 1).

  [1] The unprocessed wood W <b> 1 is placed on the wheel conveyor 1 and taken in on the input roller conveyor 2.

  [2] It is fed into the processing machine main body 5 (roller conveyor 5e with a clamp device) from the top of the input roller conveyor 2.

  [3] The circular saw unit 5a cuts the left end of the clamped workpiece W1.

  [4] The transfer positioning device 6 moves to the left and right in parallel with the longitudinal direction of the roller conveyor 7 (left and right direction in FIG. 1), grips the workpiece W1, and moves the workpiece W1 on the roller conveyors 2, 525, 5e, and 7 It is transferred in the longitudinal direction (left and right direction in FIG. 1).

  [5] The workpiece W1 is fed leftward by the transfer positioning device 6 and transferred and positioned at a position suitable for the processing position. Then, the workpiece W1 is clamped from the front and rear surfaces in a centripetal state by a horizontal vise, and clamped and unclamped by pressing it onto the roller conveyors 2, 5e, 7 from above. Further, this operation is repeated according to the processing position of the workpiece W1 and the position of the processing unit.

  [6] The mortise removing unit 5b performs a lower mortise process on the left end portion of the clamped workpiece W1.

  [7] The mortise removing unit 5b performs notching and grooving such as a peripheral edge, a window sill, a window lintel, and holding on the four surfaces of the intermediate portion of the clamped workpiece W.

  [8] The surface processing unit 5c sequentially performs surface processing such as body engraving, shaving, bolt holes, and through holes on the four intermediate surfaces of the clamped workpiece W.

  Since this processing can be performed only on the lower surface of the workpiece W1 in a state of being mounted on the processing machine, the processing on the other surface is temporarily unclamped, and the workpiece W1 is rolled according to the surface that needs to be processed. On the conveyors 2, 5e and 7, the rollover device 5d rolls over in units of 90 degrees, rolls over, and re-clamps.

  [9] The circular saw unit 5a cuts the entire length of the clamped workpiece W1.

  [10] The tenon removing unit 5b performs upper tenon processing on the right end portion of the clamped workpiece W1.

  [11] The remaining material W3 after full length cutting is discharged to the remaining material discharge roller conveyor 3 and mounted on the remaining material mounting wheel conveyor 4.

  [12] The column material W2 for which all processing has been completed is taken out from the processing machine main body 5 (roller conveyor 5e with a clamp device) and transferred onto the roller conveyor 7 by the transfer positioning device 6.

  [13] The processed column material W2 is further taken out and placed on the wheel conveyor 8.

  Next, the machining state of the tenon removing spindles (519 to 524) will be described (see FIGS. 2 and 3).

  [1] The lower tenon removing cutter 522 faces the left end of the column member and cuts the lower tenon as shown in FIG.

  [2] The upper tenon removing cutter 523 faces the right end of the column member and cuts the upper tenon as shown in FIG.

  [3] The peripheral edge cutter 524 faces the four surfaces of the middle part of the pillar material, and cuts out the grooves and grooves such as the peripheral edge, the window base, the window lintel, and the holding as shown in FIG.

  Next, the process of a tenon removal unit (5b) is demonstrated (refer FIGS. 4-6).

  [1] The tenon removing spindle motor 519 moves up and down via the ball screw 504 by the drive of the servo motor 505.

  [2] The tenon removing spindle motor 519 moves back and forth via the ball screw 511 by driving the servo motor 512.

  [3] The tenon removing spindle motor 519 is rotated about 90 degrees by the pneumatic cylinder 517.

  Next, details when the mortise removing spindle motor or the like (519 to 524) processes the intermediate portion of the column member W will be described (see FIGS. 7 and 8).

  [1] The tenon removing spindle motor 519 stands by in a standing state while the pneumatic cylinder 517 is out at the position indicated by “524i” of the peripheral edge cutter 524 and the pneumatic cylinder 517 is out. At this time, the column material W can be transferred.

  [2] The tenon removing spindle motor 519 is operated, and the peripheral edge cutter 524 is moved back and forth and moved up and down as shown by “524 b to 524 h, 524 h to 524 d, 524 b to 524 h”. , Cutting on the front and back.

  [3] The mortise removing spindle motor 519 turns at the position indicated by “to 524” of the peripheral edge cutter 524, and the mortise removing spindle motor 519 turns by the operation of the pneumatic cylinder 517 to enter the state indicated by “524”.

  [4] The tenon removing spindle motor 519 is operated, and the peripheral edge cutter 524 cuts the upper surface of the column member W by the back-and-forth movement and the up-and-down movement as shown by “524 to 524 inches”.

  The control device provided in the columnar material pre-cut processing machine 10 of the present embodiment is characterized by processing by the tenon removal unit 5b, and executes the following control processing. As shown in FIG. 9, the control device retracts the conveyor roller 525 to the position where the conveyor roller 525 is tilted downward (S20) when it is time to execute the machining by the tenon removing unit 5b (S10: YES). When the retracting of the conveyor roller 525 is completed (S30: YES), it is determined whether or not the processing content is lower tenon processing (S40). If it is lower tenon machining (S40: YES), the servo motors 505 and 512 and the tenon removing spindle motor 519 are driven to execute the lower tenon machining operation (S50). As a result, the lower tenon machining by the lower tenon removing cutter 522 as shown in FIG. If it is not lower tenon processing (S40: NO), it is determined whether upper tenon processing is performed (S60). When the upper tenon machining is performed (S60: YES), the servo motors 505 and 512 and the tenon removing spindle motor 519 are driven to execute the upper tenon machining operation (S70). As a result, the upper tenon processing by the upper tenon removing cutter 523 as shown in FIG.

  FIG. 11 shows the movement of the spindle motor 519 in the mortise removing unit 5b during the upper mortise machining. Note that the movement of the spindle motor 519 is the same in the lower tenon machining. As shown in the drawing, a series of operations are performed while the pneumatic cylinder 517 remains at the rod advance end. First, the lifting / lowering body 507 is positioned so that the spindle motor 519 is positioned at an obliquely lower front position where the “lower surface cutting height” determined based on the machining data and the “cutting blade upper end position” of the upper tenon cutter 523 coincide. Is moved (A). Next, the front and rear moving body 510 is moved rearward, and while cutting the lower surface of the workpiece W1 with the upper tenon removing cutter 523, the “cutting blade front end position” of the upper tenon removing cutter 523 is the “rear surface cutting position” of the tenon. Then, the longitudinally moving body 510 is stopped (B). Subsequently, the lifting body 507 is moved in the upward direction, and while cutting the rear surface of the workpiece W1 with the upper tenon removing cutter 523, the “cutting blade lower end position” of the upper tenon removing cutter 523 becomes the “upper surface cutting position” of the tenon. The elevator 507 is stopped when it is raised to (C). Next, the front / rear moving body 510 is moved forward and the upper tenon removing cutter 523 cuts the upper surface of the workpiece W1, while the “cutting blade rear end position” of the upper tenon removing cutter 523 is the “front cutting position” of the tenon. ”, The forward / backward moving body 510 is stopped (D). Then, the elevating body 507 is moved in the downward direction, and the rear front surface of the workpiece W1 is cut by the upper mortise removing cutter 523 (E). Since the upper tenon processing is completed by the front face cutting, the lowering stop position of the lifting body 507 at this time can be determined regardless of the next operation of the upper tenon removing cutter 523.

  In this way, in the mortise removal, since it is the end portion of the work material W1, there is no interference between the work material W1 and the equipment constituting the mortise removal unit 5b, and the pneumatic cylinder 517 remains at the forward end. Processing can be performed.

  On the other hand, when the machining content is machining to the intermediate portion (S80: YES), it is determined whether the machining includes top surface cutting (S90). When the machining does not include cutting of the upper surface (S90: NO), the servomotors 505 and 512 and the tenoning spindle motor 519 are driven to perform the machining operation (S100). On the other hand, when the processing includes cutting of the upper surface (S90: YES), the servo motors 505 and 512 and the tenoning spindle motor 519 are driven to perform the processing operation in the order of the lower surface → rear surface → front surface. After that (S200), the longitudinally moving body 510 is once moved to the forward end, and the origin return operation is performed (S210). Next, the pneumatic cylinder 517 is inserted into the retracted end (S220). As a result, the tenon removing spindle motor 519 turns downward and enters the state of FIG. Thereafter, processing of the upper surface is executed (S230). When processing by the tenon removing unit 5b is completed, the conveyor roller 525 is returned to the original position (S240).

  FIG. 12 shows the movement of the spindle motor 519 in the tenon removal unit 5b during the peripheral edge machining of the intermediate part. As shown, initially, the pneumatic cylinder 517 remains at the rod advance end. First, the lifting / lowering body 507 is moved so that the spindle motor 519 is positioned at an obliquely lower front position where the “lower surface cutting height” determined based on the machining data and the “cutting blade upper end position” of the peripheral edge cutter 524 coincide. (A). Next, the front / rear moving body 510 is moved rearward and the lower edge of the workpiece W1 is cut by the peripheral edge cutter 524, and when the “cutting blade front end position” of the peripheral edge cutter 524 becomes the “rear surface cutting position”, the front / rear moving body is obtained. 510 is stopped (B). Subsequently, the elevating body 507 is moved in the upward direction, and the rear surface of the workpiece W1 is cut by the peripheral edge cutter 524, and the elevating body 507 is stopped when the height of the rear surface cutting by the peripheral edge cutter 524 is increased (C).

  Up to this point, the operation is almost the same as in the case of mortise removal. However, after this, the elevating body 507 is sufficiently lowered and then the longitudinal moving body 510 is advanced, and the longitudinal moving body 510 is stopped when the “cutting blade rear end position” of the peripheral edge cutter 524 becomes the “front cutting position” ( D). Subsequently, the elevating body 507 is moved in the upward direction, and the elevating body 507 is stopped when the front edge of the workpiece W1 is cut by the peripheral edge cutter 524 and the height of the front edge cutting by the peripheral edge cutter 524 is increased (E).

  Next, the elevating body 507 is raised while moving the forward / backward moving body 510 forward, the mortise removing spindle motor 519 is returned to the home position and stopped, and after returning to the home position, the pneumatic cylinder 517 is moved to the rod retracting end. (F). As a result, the tenon removing spindle motor 519 turns and moves from a position obliquely above and behind the longitudinally moving body 510 to a position substantially straight behind. Thereafter, the elevating body 507 is moved to stop the elevating body 507 when the “cutting blade lower end position” of the peripheral edge cutter 524 reaches the “upper surface cutting position”, and the front and rear moving body 510 is moved rearward to cut the upper surface. Execute (G).

  According to the present embodiment, by switching the attitude of the spindle motor, it is possible to avoid the parts in the vicinity of the spindle motor from interfering with the workpiece, and to perform cutting on all four surfaces of the workpiece intermediate portion with one spindle motor. can do. As a result, with one spindle motor, it is possible to machine four surfaces to the middle part of the wood with a single clamp, and to process the notches and grooves such as peripheral edges, window sills, window lintels, and holding, Wood processing time when processing a plurality of interconnected bundles from a single square can be shortened. In addition, due to such actions and effects, it is not necessary to provide the cutter unit with a plurality of spindles or an expensive device such as a robot arm, and it is not necessary to perform a wasteful conveying operation for rolling the wood over.

  In addition, a turning support body having a turning support shaft is integrally attached to the spindle motor attitude switching mechanism at the conveyance path side tip of the longitudinally moving body, and a spindle mounting body is attached to one end of an arm that can turn around the turning support shaft. The other end of the arm is connected to the rod of the pneumatic cylinder, and when the rod of the pneumatic cylinder is moved to the forward end, the spindle mounting body is oriented horizontally, and the rod of the pneumatic cylinder is moved to the backward end. Since the spindle mounting body is configured to face in the vertical direction when it is moved, the posture switching operation is accurately executed.

  Furthermore, since the spindle motor attitude switching operation is executed in the return-to-origin state, it is possible to solve a new problem that the workpiece and the spindle motor peripheral parts of the cutter unit collide during attitude switching.

  In addition, based on the pre-cut machining data to be machined by the cutter unit, it is judged accurately whether or not posture switching is necessary, and only the minimum necessary posture switching operation is executed. Can do.

  As mentioned above, although the Example of this invention was described, this invention is not restricted to the Example mentioned above, In the range which does not deviate from the summary, it can implement in a various aspect further.

  For example, in addition to the peripheral edge, when processing a notch or groove such as a window sill, window lintel, or holding, or processing multiple bundles in an interconnected state from a single square, It can also be used to perform these machining operations with one spindle without turning the motor and performing a rollover operation or a return operation.

  In the first embodiment, the rear surface and the lower surface can be cut in the state of the rod forward end of the pneumatic cylinder, and the front surface and the upper surface can be cut in the rod backward end. Furthermore, only the rear surface can be cut with the rod forward end of the pneumatic cylinder, and the front and upper and lower surfaces can be cut with the rod retracted end.

  Contrary to the configuration of the apparatus of the first embodiment, a column is erected on the rear side of the conveyor so as to be reversed, and the first state is configured as a state in which the spindle motor is rotated downward. Modifications such as cutting the surface and upper surface with the rod forward end of the pneumatic cylinder and cutting the lower surface with the rod retracted end do not depart from the gist of the present invention.

  It is useful for pre-cut processing of residential pillar materials, and it is possible to achieve both cost reduction of factory equipment and improvement of processing capability by shortening processing time.

DESCRIPTION OF SYMBOLS 1 ... Wheel conveyor 2 ... Input roller conveyor 3 ... Remaining material discharge | emission roller conveyor 4 ... Remaining material mounting wheel conveyor 5 ... Processing machine main body 5a ... Circular saw unit 5b ·· Tenon removal unit 5c · Surface processing unit 5d · Rolling device 5e · Roller conveyor with clamp device 6 · Transfer positioning device 7 · Extraction roller conveyor 8 · Wheel conveyor 10 · ··· Column material pre-cut device 501 ··· Bed 502 ··· Column 503 ··· Guide rail 504 · · · Ball screw 504a · · · Male screw 504b · · · Internal screw 505 · · · Servo motor 506 · · · Linear bearing 507 ... Elevating body 508 ... Linear bearing 509 ... Guide rail 510 ... Back and forth moving body 511 ... Ball 511a ... Male screw 511b ... Female screw 512 ... Servo motor 515 ... Rotating body 513 ... Rotating support 514 ... Rotating support shaft 515 ... Rotating body 515a ... Base part 515b ... Arm part 516 ... Support metal fittings 517 ... Pneumatic cylinder 517a ... Head part 517b ... Rod tip 518 ... Pneumatic cylinder rod end metal fitting 519 ... Detent spindle motor 520 ... Tenon removing spindle motor right end 522 ... Lower tenon removing cutter 521 ... Tenon removing spindle motor left end 523 ... Upper tenon removing cutter 524 ... Round edge cutter 525 ... Conveyor roller W1 ..Working material W2 ... Processed pillar material W3 ... Remaining material

Claims (4)

A cutter unit that performs cutting by bringing a cutter rotated by a spindle motor including a spindle arranged in parallel with the longitudinal direction of the workpiece into contact with the upper and lower surfaces and the front and rear surfaces of the workpiece, and including the following: Column material precut processing machine characterized by having a configuration.
(A) The cutter unit supports the spindle motor in a state in which the spindle motor can pivot about a pivot support shaft parallel to the spindle, and moves the spindle motor back and forth, and moves the spindle motor back and forth. Spindle motor that pivots around a support shaft and switches between a first state in which the spindle motor is rotated in a direction away from the workpiece conveyance path and a second state in which the spindle motor is rotated in a direction approaching the workpiece conveyance path side Provide a posture switching mechanism.
(B) When cutting the intermediate portion of the workpiece, the main spindle motor is used for cutting of the front and rear surfaces of the workpiece on the surface opposite to the cutter unit across the workpiece conveyance path. Cutting as the first state is performed on the surface in the rotating direction when the main shaft motor is rotated from the second state to the first state among the upper and lower surfaces of the workpiece. The main shaft motor is executed in the second state, and the main shaft motor attitude switching mechanism is driven so that the other surfaces are cut in either the first or second state. Provide a control device. A cutter unit that performs cutting by bringing a cutter rotated by a spindle motor including a spindle arranged in parallel with the longitudinal direction of the workpiece into contact with the upper and lower surfaces and the front and rear surfaces of the workpiece, and including the following: Column material precut processing machine characterized by having a configuration.
(A1) The cutter unit includes a column erected from a base, an elevating body attached to the column so as to be movable up and down, a longitudinally moving body attached to the elevating body so as to be movable back and forth, A spindle mounting body attached to the front end of the longitudinally moving body on the workpiece conveyance path side, and a spindle motor attached to the spindle mounting body.
(A2) The spindle mounting body is attached to the longitudinally moving body so as to be capable of turning about a turning support shaft parallel to the spindle.
(A3) a first state in which the spindle mounting body is swung around the pivot support shaft , the spindle mounting body becomes a substantially horizontal mounting surface, and the spindle motor is erected on the upper side; A spindle motor attitude switching mechanism that switches between a second state in which the spindle motor is tilted to the workpiece conveyance path side with a substantially vertical mounting surface.
(B1) When cutting the intermediate portion of the workpiece, the main spindle motor is used for cutting of the front and rear surfaces of the workpiece on the surface opposite to the cutter unit across the workpiece conveyance path. Execution as the first state, cutting of the upper and lower surfaces of the work piece with respect to the upper surface is performed with the spindle motor as the second state, and for the other surfaces the first or second A control device for driving the spindle motor attitude switching mechanism so as to perform cutting in any of the states; The column material precut processing machine according to claim 1, further comprising the following configuration.
(C) When the control device turns the spindle motor from the first state to the second state, the control device moves the spindle motor to a position separated from the conveyance path by a predetermined distance or more. And configured as a device for executing the turning operation. The column material precut processing machine according to claim 3, further comprising the following configuration.
(D) The said control apparatus judges whether the said precut process data is an instruction | indication of the process with respect to the intermediate part of the said workpiece based on the precut process data which should be processed with the said cutter unit. When the position determination processing and the result of the determination processing indicate processing on the intermediate portion of the workpiece, it is determined whether or not the precut processing data includes data for processing the upper surface of the workpiece. When the processing surface determination process does not include data for processing the upper surface of the workpiece, the turning operation to the second state is executed by the spindle motor attitude switching mechanism. It is configured as a device that does not control.