JP5438489B2 - Rotating device for drill backing plate in punching device of automatic bookbinding machine - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drill support plate rotating apparatus in which a drill support plate used for automatically reversing a descent of a drill is manually rotated by a predetermined angle in a punching device of an automatic bookbinding machine. .

  Conventionally, the applicant has manufactured and sold an automatic bookbinding machine that uses a synthetic resin tube as a binding rod to bind documents. The basic principle of the paper sheet binding method in this automatic bookbinding machine is that, as shown in Patent Document 1, a synthetic resin tube is inserted into a binding hole provided in a paper sheet, and both ends of the synthetic resin tube are heated. The shape of the overhang is shaped. The basic structure of the automatic bookbinding machine is as shown in Patent Document 2, for example. That is, if the structure of this apparatus is summarized by quoting the numbers given in the patent gazette according to Patent Document 2, the bookbinding apparatus is capable of binding holes to documents stacked for the purpose of bookbinding to the base 1. A device 2 for piercing the device, a device 3 for supplying a synthetic resin tube for forming a binding rod each desired length, and a device 4 for forming a binding rod by the supplied synthetic resin tube are respectively mounted. ing.

  Among these, the apparatus 2 for punching a document in the document 2 is shown in FIGS. 1 to 3 of the same publication. The support plate 222 of the drill motor 221 including the drill 22 is provided via the lifting operation screw 21. It is lowered and then raised to make a spell hole in the document. The rotation switching of the driving motor 211 of the elevating operation screw 21 is performed by the operation of a limit switch. As one of the operation means, as shown in FIGS. 4 and 5 of the same publication. The surface of the energizing plate 232 covered with an elastic insulating plate 233 is used (in the present application, this is referred to as a drill receiving plate). In other words, a predetermined voltage is applied to the drill, the drill 22 is lowered, and the punching of the spell hole is finished on the stacked documents, and the tip of the drill 22 passes through the elastic insulating plate 233 on the lower surface of the document to the energizing plate 232. If contact is made, a strong current instantaneously flows through the drill, the limit switch is operated to reverse the rotation of the drive motor 211, and the drill 22 and the like are raised.

  Next, a description will be given of the device 4 for forming a binding rod with a synthetic resin tube. The synthetic resin tube is formed on the binding rod by pressing the upper and lower portions of the synthetic resin tube with the upper heating die 41 and the lower heating die 42. The upper and lower end portions are melted and deformed to form a ridge. That is, the upper heating die 41 is provided slidably with respect to the inner lower surface of the presser fitting. When the drill 22 pierces a spell hole, the upper heating die 41 moves backward so as not to obstruct the passage of the drill 22 and is made by a synthetic resin tube. When forming the binding rod, the drill 22 is advanced to the position of the binding hole drilled. The upper heating die 41 is slid by the operation of the operation lever 43. At the same time, the arm 44 is rotated in conjunction with the movement of the operation lever 43, and the floor plate 23 is slid back and forth. 15 is opened and closed. That is, the floor plate 23 is provided so as to advance to a position opposite to the drill 22 that descends when the drill 22 drills a spell hole, contrary to the upper heating die 41 that slides back and forth inside the presser fitting 24. When a synthetic resin tube is inserted into the formed binding hole to form a binding rod, it is retracted to open the through hole 15 of the base 1. Further, the lower heating die 42 is supported by the rotation support plate 421 so as to reciprocate between the synthetic resin tube supply position for binding and the position of the through hole 15 where the binding hole is opened. It operates in conjunction with the operation of the lever 43. Thereafter, the lower heating die 42 is raised, and a synthetic resin tube inserted through the center receiving needle 36 is inserted from the lower side with respect to the binding hole to be brought into contact with the upper heating die 41 and further pressed. Then, as shown in FIG. 14, the upper and lower portions of the synthetic resin tube are melted and deformed by the upper heating die 41 and the lower heating die 42 to form a fold, thereby binding the book using the synthetic resin tube as a binding rod. Complete.

  In these automatic bookbinding machines, the following problems remain particularly with respect to the energizing plate (drill receiving plate).

  That is, in the conventional automatic bookbinding machine described above, the drill receiving plate is fitted and fixed in the holding recess. As the drilling is repeated, the surface of the drill receiving plate is gradually cut by the tip of the drill, and the drill descends deeply. If left as it is, the tip of the drill eventually reaches the substrate of the machine, and the machine body and the cutting edge of the drill are damaged. For this reason, conventionally, the disk-shaped drill receiving plate has been manually taken out from the recess, and the part where the tip of the drill abuts is shifted. To obtain proper operation (energization), it has been empirically found that it is preferable to shift by about 60 degrees depending on the correlation between the diameter of the drill base plate and the diameter of the drill. Therefore, after using it by shifting 6 times, it is replaced with a new drill receiving plate.

  However, it is very troublesome to manually shift the drill base plate, and it is difficult and difficult to properly shift it by 60 degrees. If the angle to be shifted is too narrow, adjacent perforation marks are close to each other, and there is a risk that sufficient energization for reversing and raising the drill may not be obtained, and damage to the machine and the drill tip (cutting edge) is likely to occur.

  Therefore, the present applicant has proposed a mechanism for mechanically and automatically rotating the drill receiving plate as shown in Patent Document 3. That is, referring to the publication, in a punching apparatus in an automatic bookbinding machine that automatically reverses the descent of the drill using a drill receiving plate, the connection plate 6 is provided on the concave groove 2 provided in the base 1. A drill receiving base plate holder 8 for storing and holding a drill receiving base plate 7 is rotatably provided at the front end of the upper surface of the slide plate 3 that slides back and forth via the drill plate, and the drill receiving base plate holder 8 follows the sliding of the slide plate 3. It is designed to rotate intermittently at a predetermined angle.

  More specifically, a rotary gear 9 is provided on the lower surface of the drill base plate holder 8 so as to be rotatable on the same axis, and the rotary gear 9 rotates in synchronization with the drive gear 11 attached to the lower surface of the slide plate 3. The click gear 12 is provided on the same axis as the drive gear 11 so as to be able to rotate together, the rotation of the click gear 12 is intermittently restricted via a click bearing 14 that press-contacts the click gear 12, and A swing arm 18 having a one-way clutch 17 installed coaxially with the drive gear 11 and the click gear 12 is provided, and the swing arm 18 is suspended from the base and attached to the locking pin 19 as the slide plate 3 slides. In synchronism with the rotation of the drive gear 11 provided coaxially with the swing arm 18. Le receiving floor plate holder 8 is to be intermittently rotated at a predetermined angle in accordance with the sliding of the slide plate 3.

Japanese Patent Publication No.53-5574 Japanese Patent Publication No.55-25076 JP 2005-262387 A

  The rotating device proposed in Patent Document 3 can automatically rotate the drill base plate every 60 degrees each time a drilling operation is performed, so that rotation to an inappropriate position is prevented, and the machine body We were able to solve problems such as damage to the drill tip.

  However, this automatic rotating device has a complicated structure, and thus requires a manufacturing cost. Therefore, although it can be used for high-grade equipment such as a fully automatic type, there is a problem that it is difficult to adopt a relatively simple bookbinding apparatus.

  Moreover, problems such as failures are likely to occur due to the complexity of the structure.

  Accordingly, the present invention proposes a rotation device for a drill base plate that is relatively simple and can be incorporated at a low cost in a relatively simple semi-automatic bookbinding apparatus, and rotates the drill base plate accurately by 60 degrees. It is something that can be done.

  In order to solve the above-mentioned problems, the present invention provides a rotating device for a drill receiving plate in a punching device of an automatic bookbinding machine, wherein a mounting plate holding plate is rotatably attached to an upper surface of a notch plate provided on a base plate, and the upper surface of the notch plate A plurality of ball receiving portions having a diameter smaller than the diameter of the ball are provided at equal intervals on the circumference of a predetermined radius around the rotation axis of the floor plate holding plate, and the top surface of the floor plate holding plate is While providing a base plate holding part to which the drill base plate can be fitted, a lower side of the base plate holding plate is provided with a spring storage part having a diameter that allows the ball to be inserted so as to face the ball receiving part provided on the notch plate. A spring and a ball are stored, and the ball sequentially moves to the adjacent ball receiving portion in accordance with the rotation of the base plate holding plate, and the drill base plate fitted to the base plate holding plate can be intermittently rotated by a predetermined angle. Do It adopted the means to say.

  And the said ball receiving part provided six pieces at equal intervals, and employ | adopted the means of enabling a drill receiving base plate to rotate 60 degree | times intermittently.

  In this case, since the ball pushed downward by the spring is elastically inserted into one of the ball receiving portions, in that state, the rotation of the floor plate holding plate is restricted and temporarily fixed. Then, when this laying plate holding plate is rotated with an appropriate jig, the ball is detached from the ball receiving portion while the spring is tightened upward, but when rotated 60 degrees, it is reinserted into the adjacent ball receiving portion and temporarily fixed. The By repeating this, the floorboard holding plate rotates exactly 60 degrees, and is regulated and temporarily fixed every rotation.

  Moreover, the upper end opening periphery of the said ball | bowl receiving part employ | adopted the means of expanding and comprising in a saucer shape.

  As a result, the ball is securely inserted and held in the ball receiving portion.

  The floor plate holding plate is attached to a through hole provided in the rotary shaft core of the notch plate by a screw and an annular collar through a screw hole provided in the lower surface thereof, and the collar has a diameter of Means that the floor plate holding plate is rotatably mounted in a state of slightly floating from the notch plate by making the height smaller than the diameter of the through hole and slightly higher than the thickness of the notch plate. Adopted.

  As a result, the laying plate holding plate can rotate about the through hole while slightly floating from the notch plate.

  And the baseplate holding plate employ | adopted the means of providing a some notch in the upper-end periphery, and rotating a baseplate holding plate by making a suitable jig | tool act on this notch.

  Thereby, rotation operation of a floor-plate holding board becomes easy.

  The rotation device of the drill receiving base plate in the punching device of the automatic bookbinding machine of the present invention adopting the above configuration includes a plurality of balls arranged at equal intervals on the circumference by pushing down the balls downward by a spring provided on the lower surface of the base plate holding plate Since the rotation of the laying plate holding plate is intermittently restricted by being sequentially inserted into the receiving part, the drill receiving laying plate fitted to the laying plate holding plate can be accurately rotated by a predetermined angle (for example, 60 degrees). It has become possible. Therefore, when drilling with a drill, it is possible to reliably obtain energization necessary for reversing and raising the drill, and an excellent effect of reliably preventing damage to the machine and the cutting edge of the drill can be expected.

  Further, since no complicated gears or clutch devices are used as in the prior art, the structure is simple and the production cost is low. Therefore, it can be incorporated into a semi-automatic and inexpensive bookbinding machine, which is useful for its spread.

  Furthermore, since the structure is simple, there is little risk of failure.

(A) is a perspective view of a semi-automatic bookbinding machine in which a rotating device according to the present invention is incorporated, (B) is a perspective view with a base plate removed from the base, and (C) is a rotating device according to the present invention. It is a perspective view. It is a disassembled perspective view of the rotating apparatus which concerns on this invention. (A) is a plan view of the notch plate, (B) is a side view thereof, and (C) is a perspective view thereof. (A) is a top view of the rotation apparatus which concerns on this invention, (B) is the AA line expanded sectional view.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a drill receiving plate rotating device in a punching device of an automatic bookbinding machine according to the present invention will be described below with reference to the accompanying drawings.

  First, a bookbinding machine in which a rotating device according to the present invention is incorporated will be described. In the semi-automatic bookbinding machine shown in FIG. 1A, reference numeral 101 denotes a base of the bookbinding machine, and a paper sheet stacking device 103 for stacking paper sheets is slidable in the left-right direction on the base plate 102 on the front side. ing. In the housing provided above the base plate 102, a punching device 104, a tube take-out tray 105, and a tube caulking device 106 are provided in parallel with the sliding direction of the paper sandwiching device 103. Reference numeral 107 denotes an operation handle of the tube caulking device 106, 108 denotes a synthetic resin tube insertion holding tube, and 109 denotes an operation panel for performing various operations.

  And the basic usage of this bookbinding machine is as follows. That is, the sheet bundle to be bound is fixed by being sandwiched between the paper pinching devices 103 and set under the punching device 104. Next, when the punching position is determined and the punching switch of the operation panel 109 is operated, the drill is lowered, and the binding hole is punched in the sheet bundle. At this time, the synthetic resin tube is cut to a predetermined length by an internal mechanism (not shown) in conjunction with the perforation, and the tube comes out to the tube take-out tray 105. Therefore, the paper pinching device 103 is slid and positioned under the tube receiver 105, and the tube that has come out is manually inserted into the binding hole. At this time, the perforated waste remaining in the binding hole falls downward. Further, when the paper sheet bundle is slid under the tube caulking device 106 and the tube caulking device 106 is operated by the operation handle 107, the upper and lower ends of the synthetic resin tube are melted and deformed by heat to form a bowl shape, and the bookbinding is completed. .

  The punching device 104 in this semi-automatic bookbinding machine has substantially the same structure as the punching device in the above-described various bookbinding machines, and a disc-shaped drill receiving plate is used to stop drilling and reversely lift the drilling. 104a is used. That is, this drill receiving plate 104a has a two-layer structure of an elastic insulating plate and a current carrying plate, a predetermined voltage is applied to the drill, the drill descends, the drilling of the binding hole ends, and the tip of the drill Passes through the elastic insulation plate of the drill base plate 104a on the lower surface of the paper sheet bundle and contacts the current-carrying plate, a momentary strong current flows through the drill, the limit switch is operated to reverse the rotation of the drive motor, The drill is raised.

  As described above, the present invention relates to an apparatus for rotating the drill base plate 104a by an appropriate angle, and is provided at the arrow portion of the bookbinding machine shown in FIG. 1B shows a state in which the base plate 102 is removed from the base 101, and FIG. 1C shows the appearance of the rotating device provided there. FIG. 2 is an exploded perspective view of the structure.

  In FIG. 2, reference numeral 1 denotes a base plate for attaching the rotating apparatus to the bookbinding machine main body. The base plate 1 has a through hole 1a at the center and screw holes 1b and 1b at the left and right ends. Reference numeral 2 denotes a notch plate that is fixed to the base plate 1 and fastens and attaches screws 3 and 3 through the screw holes 1b and 1b. Screw insertion holes 2a and 2a for inserting the screws 3 and 3 are formed at both left and right end portions of the notch plate 2, and a through hole 2b is provided coaxially with the through hole 1a of the base plate 1. ing.

  Around the through hole 2b of the notch plate 2, ball receiving portions 2c, 2c,... Having a center point on the circumference of a predetermined radius centered on the axis of the through hole 2b are arranged at equal intervals. 6 are provided (see FIG. 3). That is, the ball receiving portions 2c are provided so that the angle α formed by the line connecting the center point and the axis forms an angle of 60 degrees with the axis as the center. Each ball receiving portion 2c has a diameter smaller than that of the ball 8 described below, and the peripheral edge of the upper end opening expands into a tray shape so that the ball 8 can be easily inserted (see FIG. 4). . In the figure, the ball receiving portion 2c is a through-hole penetrating the notch plate 2, but it may be a concave receiving tray shape into which the ball 8 is inserted.

  4 is a laying plate holding plate, and a circular laying plate holding portion 4a is recessed in the upper surface of the cylindrical main body so that a disk-shaped drill receiving laying plate (C) can be fitted, and a plurality of ( In the figure, there are 6 cuts 4b, 4b,. The floor plate holding plate 4 is attached to the through hole 2b of the notch plate 2 by a screw 5 and an annular collar 6 through a screw hole 4c provided on the lower surface thereof. Since it is smaller than the diameter of the through hole 2b and its height is slightly larger than the thickness of the notch plate 2, it rotates while slightly floating from the notch plate 2 as shown in the sectional view of FIG. It will be attached as possible.

  Further, at least one portion of the bottom surface (surface facing the notch plate 2) of the floor plate holding plate 4 is a spring housing portion 4d having a diameter that allows the ball 8 to be fitted so as to face the ball receiving portion 2c of the notch plate 2. The spring 7 and the ball 8 which are tightened are accommodated. That is, the ball 8 is pushed downward by the elastic force of the spring 7, protrudes from the lower surface of the floor plate holding plate 4, and is elastically fitted into the ball receiving portion 2c (see FIG. 4B). . In this state, when a force is applied to rotate the floor plate holding plate 4 about the axis, the ball 8 is detached from the ball receiving portion 2c, but when it is rotated 60 degrees, it is reinserted into the next ball receiving portion 2c. In other words, every time the base plate holding plate 4 is rotated by 60 degrees, the ball 8 is fitted into the ball receiving portion 2c to restrict the rotation, and conversely, the base plate holding plate 4 rotates exactly by 60 degrees. It is temporarily fixed every time. Thereby, the drill receiving base plate (C) fitted to the base plate holding part 4a can be accurately rotated by 60 degrees. The laying plate holding plate 4 can be rotated by engaging an appropriate bar-shaped jig in the notches 4b, 4b,... Provided in the upper edge and pushing it in a predetermined direction. Rotation is regulated.

  Therefore, according to the rotating device of the drill base plate according to the present invention, if the base plate holding plate is rotated manually using an appropriate jig, the rotation is regulated every 60 degrees, and the mounted drill base plate is accurately Can be rotated by 60 degrees.

  In this case, since it can be rotated accurately by 60 degrees with a relatively simple configuration without using a complicated interlocking mechanism as disclosed in Patent Document 3 above, It is easy to employ in a semi-automatic bookbinding machine with a simple configuration, and its manufacturing cost is low.

  In the above-described embodiment, the configuration in which the drill base plate is rotated by 60 degrees has been described as the most preferable one, but the configuration is not limited thereto. In other words, the number of ball receiving portions is not limited to six, and may be any number, for example, from about four to about eight as long as they are provided at equal intervals. It is possible to set the number of the drill support plates to the number that can be used most effectively. However, for example, if four pieces are used, a lot of wasted parts are generated on the drill receiving plate, and if it is eight pieces, the distance between the ball receiving parts becomes small, so that the drill marks are close and the drill is reversed. It is also necessary to consider that there is a risk of hindering the reliable supply of electricity necessary for the operation.

DESCRIPTION OF SYMBOLS 1 Base plate 1a Through-hole 2 Notch plate 2b Through-hole 2c Ball receiving part 3 Screw 4 Laying board holding plate 4a Laying board holding part 4b Cutting 4c Screw hole 4d Spring accommodating part 5 Screw 6 Color 7 Spring 8 Ball

Claims (5)

  A laying plate holding plate is rotatably attached to the upper surface of the notch plate provided on the base plate, and has a diameter smaller than the diameter of the ball on the circumference of a predetermined radius around the rotation axis of the laying plate holding plate on the upper surface of the notch plate. A plurality of ball receiving portions are provided so as to be equidistant from each other, and a bottom plate holding portion to which a drill receiving base plate can be fitted is provided on the top surface of the bottom plate holding plate, while the notch plate is provided on the bottom surface of the bottom plate holding plate. A spring accommodating portion having a diameter that allows the ball to be inserted is provided opposite to the provided ball receiving portion to store the tightened spring and ball, and the balls sequentially move to the adjacent ball receiving portion according to the rotation of the floor plate holding plate. Then, the drill receiving plate rotating device in the punching device of the automatic bookbinding machine, wherein the drill receiving plate fitted to the supporting plate holding plate can be intermittently rotated by a predetermined angle.   6. The rotating device for a drill receiving plate in a punching apparatus for an automatic bookbinding machine according to claim 1, wherein six ball receiving portions are provided at equal intervals so that the drill receiving plate can be rotated intermittently by 60 degrees.   The rotating device for a drill receiving base plate in a punching device for an automatic bookbinding machine according to claim 1 or 2, wherein the peripheral edge of the upper end opening of the ball receiving portion is configured to expand in a tray shape.   The floor plate holding plate is attached to a through-hole provided in the rotary shaft core of the notch plate by a screw and an annular collar through a screw hole provided on the lower surface thereof, and the diameter of the collar is the above-described diameter. The laying plate holding plate is attached so as to be rotatable in a state of slightly floating from the notch plate by making it smaller than the diameter of the hole and slightly higher than the thickness of the notch plate. The rotating device for a drill receiving plate in the punching device for an automatic bookbinding machine according to any one of items 3 to 4.   5. The punching device for an automatic bookbinding machine according to claim 4, wherein the base plate holding plate is provided with a plurality of cuts at an upper edge of the top plate, and the base plate holding plate is rotated by applying an appropriate jig to the cuts. Rotating device for drill backing plate.

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