JP5892688B2 - Drilling device - Google Patents

Description

  The present invention relates to a perforation apparatus that perforates a paper, a resin film, a metal foil, a thin plate, or a laminate of these by moving a perforation blade linearly.

  2. Description of the Related Art Conventionally, there is a perforation apparatus that perforates by moving a perforation blade linearly on paper, a resin film, a metal foil, a thin plate, or a laminate of these (hereinafter collectively referred to as “sheet material”). In these drilling apparatuses, a drive mechanism for linearly reciprocating the drilling blade provided in the drilling direction and the return direction is, for example, a solenoid type that reciprocates the drilling blade using a magnetic force of a solenoid (Patent Document 1). A cam push-down type that reciprocates the drilling blade using a pressing force by a cam specially provided at one end of the drilling blade and a spring force against the cam (Patent Document 2). The gear mechanism rotates the drilling blade around its axis. However, a double-gear rotary type that reciprocates the drilling blade using another gear mechanism (Patent Document 3), and an engagement pin fixed to the device body other than the drilling blade is engaged with a single spiral groove formed on the outer periphery of the drilling blade. A mechanical mechanism such as a crank pressing rotary type (Patent Document 4) that reciprocates while rotating a drilling blade around an axis using a pressing force by a link of a crank mechanism in a combined state is known.

  In the punching device to which the above-described solenoid type or cam pressing type is applied, the cutting edge of the punching blade moved linearly in the punching direction can pierce the sheet material and punch the sheet material. Further, in the above-described drilling device to which the double gear rotary type or the crank pressing rotary type is applied, the drilling blade moves linearly in the drilling direction by one rotation around the axis, and the cutting edge is inserted into the sheet material while cutting the sheet material. Can be perforated. Then, the drilling blade can return to the standby position by the other rotation. In this way, drilling while rotating the drilling blade around the axis is advantageous for energy saving of the drilling device because the required drilling force is reduced and the drive source can be miniaturized.

JP 2000-301495 A JP 2000-141294 A JP 2006-943 A JP-A-5-138599

  In the drilling device described above, the driving mechanism of the drilling blade is one of the dominant factors that determine the overall shape and size of the drilling device. In recent years, there has been a strong demand for downsizing of the drilling device, but it is not easy to downsize the driving mechanism of the drilling blade, and the downsizing of the drilling device is not satisfactory. For example, in the solenoid type, the size of the solenoid itself is reduced and the output is increased. In the cam press type and double gear rotary type, the number of parts is reduced and the occupied space is reduced. There are problems that are desired to be solved, such as reducing the cost of processing the spiral groove formed on the drilling blade and simplifying the rotation control of the drilling blade.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a drilling apparatus that is extremely compact by making the driving mechanism of the drilling blade simple mechanically and controllable. It is to be.

  The present inventor has studied in detail the structural relationship between the helical groove formed on the crank-pressing rotary drilling blade and the engaging pin, and has two helical grooves on the outer periphery of the rotating shaft connected to the drive source. And a mechanical configuration capable of linearly reciprocating the drilling blade by one rotation of the rotating shaft has been found, and the present invention has been achieved.

That is, the first form of the drilling device of the present invention is a drilling device that moves a drilling blade linearly to drill an object to be drilled, and has two spirals in a reversely wound relationship that are continuous on the drilling direction side. A rotary shaft body provided with a groove on an outer periphery of the shaft, the shaft extending along the moving direction of the drilling blade, and a support body including a through hole along the drilling direction in which the shaft of the rotary shaft body communicates; coupled to the cutting head engages the convex portion with respect to the helical groove, anda derivative to convert axial movement of the rotation of the rotating shaft body, wherein said derivative is in the through-hole The convex portion is inserted into a hole of the support body provided orthogonal to a position where the convex portion enters the spiral groove of the rotating shaft body, and the derivative is inserted into one of the spiral grooves by the rotation of the rotating shaft body. The drilling blade connected to the derivative is moved in the drilling direction After the perforating blade has perforated the workpiece, the derivative moves along the other of the spiral grooves in the returning direction, so that the derivative and the perforating blade move in the returning direction. It is a punching device.

  In the first embodiment of the present invention, it is desirable that the two spiral grooves of the rotating shaft body are continuous on the return direction side.

Further, a second form of the punching device of the present invention is a punching device that moves linearly while rotating a punching blade and punches an object to be drilled, and has two lines in a reversely wound relationship that are continuous on the return direction side. A rotating shaft body provided on the outer periphery of the shaft, the shaft extending along the moving direction of the drilling blade, and the drilling blade connected to an end of the shaft in the drilling direction, and the rotating shaft A support having a through-hole along the drilling direction in which the axis of the body communicates, and a convex portion engage with the spiral groove, and the rotation of the rotating shaft is moved in the axial direction of the rotating shaft itself And the derivative is inserted into the hole of the support provided perpendicular to the through hole to a position where the convex portion enters the spiral groove of the rotating shaft body, The rotation shaft body moves in the perforation direction by the rotation of the rotation shaft body, so that the rotation After the drilling blade connected to the shaft body rotates and moves in the drilling direction, the drilling blade drills the object to be drilled, and then the rotation shaft body is engaged with the other of the helical grooves of the derivative. And a drilling device in which the drilling blade moves in the return direction.

  In the second embodiment of the present invention, it is desirable that the two spiral grooves of the rotating shaft body are continuous on the perforation direction side.

Further, a plurality of perforation apparatuses according to the first embodiment of the present invention can be used for a large number of perforations.
Further, a plurality of perforation apparatuses according to the second embodiment of the present invention can be used for a large number of perforations.

  According to the present invention, the drilling blade can be reciprocated by applying a simple and novel mechanical mechanism composed of a rotating shaft body and a derivative that can move in an engaging relationship with the rotating shaft body. Compared with the drilling device of the type, the space required for the mechanism operation and the space occupied by the mechanism parts can be reduced, and it is not necessary to perform special processing on the drilling blade. In addition, since the number of components of the drive system is reduced and mechanical efficiency can be improved, it is possible to reduce power consumption, noise and vibration. In particular, according to the second embodiment of the present invention, a drilling blade such as a conventional double gear rotary type (Patent Document 3) or a crank pressing rotary type (Patent Document 4) is used without performing complicated processing on a drilling blade which is a special material. The above-mentioned effects can be exhibited while having the advantage of the method of drilling while rotating around the axis, which is preferable.

Furthermore, according to the present invention, the reciprocating movement of the drilling blade can be continuously performed without switching the rotation direction of the rotating shaft body by adding a simple process to the rotating shaft body.
Therefore, the punching device of the present invention becomes a mechanically much more compact punching device, and also becomes a drilling device that is simplified in terms of control.

  In addition, since the drilling apparatus of the present invention can reciprocate one drilling blade with one drive mechanism, for example, the drilling apparatus of the present invention can be configured as a drilling apparatus for multiple drilling by using the desired number of drilling holes. it can. According to this configuration, a simple control method that individually controls each drive mechanism corresponding to each drilling blade is used instead of a complicated control method that selectively controls the drive and non-drive of a plurality of drive mechanisms. Since it can be applied, it can contribute to the cost reduction of the drilling apparatus for multiple drilling.

It is the figure which illustrated the 1st form of the perforation apparatus of the present invention. It is the figure which showed the detailed structure of the perforation apparatus shown in FIG. It is the figure which illustrated the two spiral groove | channel of the rotating shaft body which can be applied by this invention. It is the figure which illustrated the engagement relationship of the helical groove | channel of the rotating shaft body which can be applied by this invention, and the derivative | guide_body engaged with this. It is the figure which illustrated the 2nd form of the punching apparatus of this invention. It is the figure which showed the detailed structure of the punching apparatus shown in FIG.

  The present invention relates to a piercing device that moves a piercing blade linearly to pierce an object to be drilled, and a technically important feature is a mechanical mechanism for driving the piercing blade. Specifically, the main part of the drilling blade driving mechanism is engaged with a rotating shaft body provided with two spiral grooves on the outer periphery in a reversely wound relationship with each other, and the rotating shaft body Is composed of a derivative that converts the rotation of the shaft into a movement in the axial direction. In addition, the two spiral grooves provided on the outer periphery of the rotating shaft body are continuous on the perforation direction side in the first embodiment described above, and are continued on the return direction side in the second embodiment described above.

  Regarding the above-mentioned two spiral grooves, continuous means that one spiral groove is connected to the other spiral groove, and the derivative is transferred from one spiral groove to the other spiral groove and vice versa. , Meaning that it is movable. Also, the direction in which the drilling blade moves to pierce the workpiece is referred to as the piercing direction, and the direction in which the piercing blade moves to return to the original standby position after piercing the workpiece is referred to as the return direction. In the shaft body, the drilling direction side means the side close to the drilled object of the shaft body, and the return direction side means the side far from the drilled object of the shaft body.

Hereinafter, the punching apparatus of the present invention will be described with reference to the drawings, taking specific examples considered by the present inventor to be optimal.
(First form of punching device)
A first embodiment of the drilling device of the present invention is illustrated in FIG. 1, and its detailed configuration is shown in FIG.
The piercing device shown in FIG. 1 includes a motor 1 serving as a driving source, a piercing blade 11 that pierces an object to be drilled (not shown), and a piercing blade driving mechanism that linearly moves the piercing blade 11. The drilling blade driving mechanism includes a rotating shaft body 4 having a shaft arranged along the moving direction of the drilling blade 11, a derivative 5 that is connected to the drilling blade 11 and is engaged with the rotating shaft body 4, Have

  The rotating shaft body 4 is communicated with a through hole provided in the support body 6 along the perforating direction, and both ends are rotatably supported by the frames 7 and 8. The outer periphery of the rotating shaft body 4 is provided with two spiral grooves 4a that are reversely wound with each other, and the respective spiral grooves are continuously formed on the perforation direction side. A gear 3 is provided at the shaft end of the rotating shaft body 4 on the frame 7 side, and a gear 2 is provided on the rotating shaft of the motor 1 attached to the frame 7 so that the gear 2 and the gear 3 are engaged with each other. Yes.

  The derivative 5 has a convex portion 5 a and is inserted into a hole provided so as to go straight to the through hole of the support 6 to a position where the convex portion 5 a enters the spiral groove of the rotating shaft body 4. Further, the plate 9 is used to prevent the derivative 5 from retreating and leaving the spiral groove. As a result, the derivative 5 is engaged with the spiral groove of the rotating shaft body 4 and can move in the axial direction of the rotating shaft body 4 along the spiral groove by the rotation of the rotating shaft body 4. In a preferred embodiment, the tip of the convex portion 5a is formed in a plate shape in consideration of force transmission and durability of the member, and the derivative 5 is provided on the support body 6 according to the change in the angle of the spiral groove. It is configured to be able to rotate freely in the formed hole. The movement of the derivative by the rotation of the rotating shaft will be described in detail later. Therefore, when the derivative 5 moves in the drilling direction or the return direction in the spiral groove of the rotating shaft body 4 whose axis is arranged along the drilling direction, the support 6 is also moved in the same direction as the derivative 5.

The perforating blade 11 is attached by a pin 10 to the support 6 to which the derivative 5 is attached. Therefore, the perforating blade 11 is moved in the same direction as the derivative 5 by the support 6 that moves in the same direction as the derivative 5 when the derivative 5 moves by converting the rotation of the rotary shaft 4 into the movement in the axial direction. The
Therefore, according to the above-described configuration, by one rotation of the rotary shaft body 4, the drilling blade 11 is moved in the drilling direction by moving the derivative 5 along the one spiral groove, and moves to the drilling direction. The sheet material or the like to be punched can be punched, and thereafter, the derivative 5 can be moved in the return direction along the other spiral groove, moved in the return direction, and returned to the standby position.

(Second form of punching device)
Next, a second embodiment of the drilling device of the present invention is illustrated in FIG. 5, and its detailed configuration is shown in FIG.
The piercing device shown in FIG. 5 includes a motor 21 serving as a drive source, a piercing blade 31 that pierces an object to be drilled (not shown), and a piercing blade drive mechanism that moves linearly while rotating the piercing blade 31. including. The drilling blade drive mechanism includes a rotary shaft body 24 on the side where the drilling blade 31 is coupled and a shaft arranged along the moving direction of the drilling blade 31, and a derivative engaged with the rotary shaft body 24. 25.

  The rotary shaft body 24 is rotatably supported by the support body 26 fixed to the frame 27 so that the shaft communicates with a through hole provided in the support body 26 along the drilling direction. The outer periphery of the rotating shaft body 24 is provided with two spiral grooves 24a that are reversely wound with each other, and each spiral groove is continuously formed on the return direction side. Further, a drilling blade 31 is attached to the shaft end portion of the rotary shaft body 24 on the drilling direction side using a pin 30, and a gear 23 is attached to the shaft end portion on the return direction side. The gear 23 meshes with the gear 22 attached to the rotating shaft of the motor 21 attached to the frame 77. Since the gear 23 moves as the rotary shaft 24 moves in the axial direction, one or both of the gear 22 and the gear 23 are configured to be long in the axial direction so that the gear 22 and the gear 23 are not disengaged. It is preferable to do.

  The derivative 25 has a convex portion 25 a, and is inserted into a hole provided so as to be orthogonal to the through hole of the support body 26 to a position where the convex portion 25 a enters the spiral groove of the rotating shaft body 24. Further, the plate 29 is used to prevent the derivative 5 from retreating and leaving the spiral groove. In this way, the derivative 25 fixed to the support body 26 outside the rotating shaft body 24 is engaged with the rotating shaft body 24 that is disposed so as to be movable in the axial direction. The body 24 itself is moved in the drilling direction. Therefore, by the rotation of the rotating shaft body 24, the fixed derivative 25 becomes a guide mark of the rotating shaft body 24, the derivative 25 engages with one or the other spiral groove 24a, and the rotating shaft body 24 itself It will move in the drilling direction or return direction. Note that the movement of the rotary shaft itself in the axial direction due to the rotation of the rotary shaft will be described in detail later.

The piercing blade 31 is attached to the shaft end of the rotating shaft body 24 on the piercing direction side. Accordingly, when the rotation shaft body 24 itself moves in the axial direction as described above, the drilling blade 31 connected to the rotation shaft body 24 is also moved in the same direction as the rotation shaft body 24.
Therefore, according to the above-described configuration, the rotation shaft body 24 is moved while rotating in the drilling direction by the one rotation of the rotation shaft body 24 by the engagement of the derivative 25 with the one spiral groove. 31 is also moved in the drilling direction while being rotated. Therefore, it is possible to punch and punch a sheet material or the like that is to be punched while utilizing the cutting effect by the rotation of the punching blade 31. Then, after the drilling, the rotary shaft 24 itself is moved in the return direction while rotating due to the engagement of the derivative 5 with the other spiral groove, so that the drilling blade 31 is moved in the return direction while being rotated, and waits. Can return to position.

(Two spiral grooves of rotating shaft)
The two spiral grooves that can be applied in the present invention are reversely wound with each other, and the cross-sectional shape of the grooves is continued. To be formed. The configuration will be described with reference to FIG. In order to clarify the configuration of the spiral groove shown in FIG. 3, the spiral groove 4a of the rotary shaft body 4 shown in FIG. 2 and the spiral groove 24a of the rotary shaft body 24 shown in FIG. However, the number of turns of the spiral groove is increased.

  The two spiral grooves shown in FIG. 3 are continuously wound on both sides of the perforation direction and the return direction in a reversely wound relationship, and derivatives (not shown) that enter and engage with the grooves are indicated by arrows. It is formed to be freely movable. A rotating shaft body having a configuration in which two spiral grooves are continuous on both sides can be applied to both the first embodiment and the second embodiment of the present invention. A rotating shaft body having a configuration in which two spiral grooves are continuous only on the perforation direction side can be applied to the first embodiment, and a rotating shaft body having a configuration continuous only on the return direction side can be applied to the second embodiment.

(Engagement relationship between rotating shaft body and derivative)
FIG. 4 shows an example of the engagement relationship between the rotating shaft body 24 and the derivative 25 including a partial cross section based on the specific example of the second form shown in FIG.
The derivative 25 rotates the convex portion 25a by the support 26 fixed to the frame 27 (not shown) and the plate 29 so as not to prevent the rotation shaft 24 itself from moving in the axial direction due to the engagement of the derivative 25. The shaft body 24 is assembled by being inserted into the spiral groove 24a. And since the derivative | guide_body 25 inserted in the hole provided in the support body 26 is free to rotate and finely move back and forth in the hole, the convex portion 25a is suitable for the contact state of the wall surface of the spiral groove 24a. It can be a posture. By engaging the protrusion 25a of the derivative 25 into the spiral groove 24a, the engagement relationship between the rotary shaft body 24 and the derivative 25 can be maintained. It should be noted that the shape and material of the spiral groove and the convex portion can be appropriately designed in consideration of the diameter and length of the rotary shaft body, the mass of the movable part such as the drilling blade, and the mechanical configuration.

(Movement of derivative by rotation of rotating shaft)
In the case of the configuration shown in FIG. 4, the fixed derivative 25 cannot move due to the rotation of the rotating shaft body 24, and the rotating shaft body 24 can itself move in the axial direction while rotating. Although illustration is omitted, if the derivative side is fixed and movable, and the movement of the rotating shaft body in the axial direction is stopped, the rotating shaft body cannot be moved by rotation of the rotating shaft body, and the derivative side is axially moved. Can be moved to.

  More specifically, in FIG. 3, for example, when the right side of FIG. 3 is the drilling direction, a derivative (not shown) that has moved one spiral groove as indicated by an arrow A by one rotation of the rotating shaft body. ) Is transferred from the arrow B to the other spiral groove as indicated by the arrow C and the arrow D at a position on the perforation direction side where the two spiral grooves are continuous. Similarly, a derivative (not shown) that has moved one spiral groove as indicated by an arrow A ′ by the same one rotation of the rotating shaft body is changed from an arrow B ′ to an arrow C ′ at a position on the return direction side. As indicated by the arrow D ′, the process moves to the other spiral groove.

  Therefore, the structure in which the derivative is engaged with the two spiral grooves continuous on the perforation direction side in a reversely wound relationship as described above, the rotation direction of the rotation shaft body is changed by one rotation of the rotation shaft body. Without switching, the moving direction of the derivative can be continuously switched from the drilling direction to the return direction on the drilling direction side of the rotating shaft, and from the return direction to the drilling direction on the return direction side of the rotary shaft body. In addition, when applying a rotating shaft body having a configuration in which two spiral grooves are continuous only on either the drilling direction side or the return direction side, one drilling operation is performed by one rotation of the rotating shaft body, and the next time Can be performed by the other rotation of the rotating shaft.

(Movement between rotating shaft and derivative)
In the configuration of the rotary shaft body and the derivative described above, when the rotary shaft body that stops moving in the axial direction is applied, the rotary shaft body is driven by pushing the derivative through the spiral groove by the rotation of the rotary shaft body, The derivative can be moved in the axial direction of the rotary shaft along the spiral groove. In addition, when a derivative fixed outside the rotating shaft body is applied, the derivative is fixed in a helical form because the rotating shaft body tries to push the derivative through the spiral groove by rotation of the rotating shaft body. The rotating shaft body can be driven and driven through the groove, and the rotating shaft body can be moved in the axial direction. Therefore, if it has the structure mentioned above, a derivative | guide_body and a rotating shaft body will become a structure which can be relatively moved whether a derivative | guide_body moves or a rotating shaft body moves.

  As described above, the piercing device of the present invention is provided with two spiral grooves on the outer periphery of the shaft, which are provided in the main part of the piercing blade driving mechanism and have two spiral grooves that are continuously wound in the piercing direction side. A rotating shaft body having the shaft extended along a moving direction, a derivative coupled to the drilling blade, engaged with the spiral groove, and converting the rotation of the rotating shaft body into axial movement; Have. Alternatively, two spiral grooves that are reversely wound in relation to each other on the return direction side are provided on the outer periphery of the shaft, the shaft is extended along the moving direction of the drilling blade, and the end of the shaft in the drilling direction And a derivative that engages with the spiral groove and converts the rotation of the rotating shaft body into movement in the axial direction of the rotating shaft body itself. That is, the perforating apparatus of the present invention realizes the relative movement between the derivative and the rotating shaft body by a simple and novel mechanical mechanism, and enables the reciprocating movement of the perforating blade.

Therefore, in the drilling apparatus, the space required for the mechanism operation and the space occupied by the mechanism parts can be reduced, and it is not necessary to perform special processing on the drilling blade. In addition, since the number of components of the drive system is reduced and mechanical efficiency can be improved, it is possible to reduce power consumption, noise and vibration. Furthermore, by making both ends of the two spiral grooves continuous, the reciprocating movement of the drilling blade can be continuously performed without switching the rotation direction of the rotary shaft body.
Therefore, the punching device of the present invention becomes a mechanically much more compact punching device, and further becomes a punching device that is simplified in terms of control.

  In addition, the perforating apparatus of the present invention can reciprocate one perforating blade with one driving mechanism. Therefore, a plurality of perforating apparatuses according to the present invention can be used as many perforations as desired to form a perforating apparatus for a large number of perforations. According to this configuration, a simple control method that individually controls each drive mechanism corresponding to each drilling blade is used instead of a complicated control method that selectively controls the drive and non-drive of a plurality of drive mechanisms. Since it can be applied, it can contribute to the cost reduction of the drilling apparatus for multiple drilling.

1. Motor, 2. Gears, 3. Gears, 4. Rotating shaft body, 4a. 4. spiral groove; Derivatives, 5a. Convex part, 6. 6. support, Frame, 8. Frame, 9. Plate, 10. Pin, 11. Drilling blade, 21. Motor, 22. Gears, 23. Gears, 24. Rotating shaft 24a. Spiral groove, 25. Derivatives, 25a. Convex part, 26. Support, 27. Frame, 29. Plate, 30. Pin, 31. Perforated blade

Claims (6)

A drilling device for linearly moving a drilling blade to drill an object to be drilled, comprising two spiral grooves that are continuously wound in the reverse direction of the drilling direction on the outer periphery of the shaft, and the movement of the drilling blade A rotating shaft body having the shaft extended along a direction, a support body having a through-hole along the drilling direction in which the shaft of the rotating shaft body communicates, and the drilling blade connected to the spiral groove And a derivative that engages with a convex part and converts the rotation of the rotating shaft body into movement in the axial direction, and the derivative is provided in the hole of the support body provided orthogonal to the through hole, The convex portion is inserted to a position where it enters the spiral groove of the rotating shaft body, and the derivative moves to the perforating direction along one of the spiral grooves by the rotation of the rotating shaft body. The connected drilling blade moves in the drilling direction, and the drilling blade punches the workpiece. After by the derivative moves return direction along the other of said helical grooves, punching device wherein said derivative and said punching blade moves return direction, characterized in that.   2. The perforated storage according to claim 1, wherein the two spiral grooves of the rotating shaft body are continuous on the return direction side. A perforating apparatus that linearly moves while rotating a perforating blade to perforate an object to be perforated, and includes two spiral grooves that are continuously wound in a reverse direction on the return direction side on the outer periphery of the shaft. A rotating shaft body in which the shaft is extended along the moving direction of the blade and the drilling blade is connected to an end portion of the shaft in the drilling direction, and a through hole along the drilling direction in which the shaft of the rotating shaft body communicates And a derivative that engages with a convex portion with respect to the spiral groove and converts rotation of the rotating shaft body into axial movement of the rotating shaft body itself, and the derivative is The protrusion is inserted into a hole of the support body provided perpendicular to the through hole until the position where the convex part enters the spiral groove of the rotary shaft body, and the rotary shaft body is rotated by the rotation of the rotary shaft body. By moving in the drilling direction, the drilling blade connected to the rotary shaft does not rotate. After moving in the drilling direction, and the drilling blade punches the workpiece, the rotary shaft body and the drilling blade move in the return direction by the engagement of the derivative with the other spiral groove. A perforating apparatus.   The perforated storage according to claim 3, wherein the two spiral grooves of the rotating shaft body are continuous on the perforating direction side.   3. A perforating apparatus using a plurality of perforating apparatuses according to claim 1 or 2 for a large number of perforations.   5. A perforating apparatus using a plurality of perforating apparatuses according to claim 3 or 4 for a large number of perforations.