JPH0351189A - Apparatus for automatically binding sheet material - Google Patents

Abstract

PURPOSE:To keep safety and to prevent the distortion and breakage of a support member by interposing an one-way mechanism operated in a direction opening a binding member in a drive system for driving the support member. CONSTITUTION:An one-way mechanism 96 operated in a direction opening a binding member 6 is interposed in at least one 53 of drive systems 53, 57 driving support members 52, 56. Sheet materials 2 are perforated by a perforation means 3 and the binding member 6 is fed to a binding position by a feed means 5 and supported by a pair of the support members 52, 56 of a binding means 7 to be opened and closed to bind the sheet materials 2. At this time, at least one 53 of the drive systems 53, 57 is driven only in the direction opening the binding member 6 by the one-way mechanism 96. By this method, an operator is protected from the pinching of his finger and the distortion/breakage of the support members is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a sheet material stitching device, and more specifically, to a sheet material binding device, in which a support member that supports a stitching member to open/close and stitch the sheets is provided with a pinch prevention mechanism. This invention relates to an automatic material binding device.

(0) Prior Art Conventionally, a large number of finger members extending in a substantially circular shape in the lateral direction are formed on a straight spine, and a binding member made of a plastic material is perforated by a perforating means. An automatic sheet material stitching device has been proposed that automatically stitches sheet materials into holes formed in the sheets.

(C) Problems to be Solved by the Invention However, the automatic sheet material stitching device is provided with a pair of support members that open and close while supporting the stitching members, and the operator can touch the A binding member is attached. Furthermore, when the support member is in the closing operation, there is a drawback that if the operator accidentally gets his fingers or the like caught, it will be extremely dangerous.

(d) Means for solving the problem The present invention has been made in view of the above circumstances, and includes:
For example, perforating means (3) for perforating the sheet material (2);
Conveying means (5) for conveying the perforated sheet material (2) to a position where it is stitched to the stitching member (6). A sheet material automatic stitching device (1) comprising a stitching means (7) having a pair of supporting members (52) and (56) to stitch together;
), at least one (53) of the drive trains (53) and (57) that drives the support members (52) and (56).
) is provided with a one-way mechanism (96) that operates in the direction of opening the stitching member (6).

(n) Based on the structure described above, the sheet material (2) is perforated by the perforating means (3).
The stitching member (6) is perforated by the conveyor means (5).
are conveyed to a position where they are to be stitched together, the stitching member (6) is supported by a pair of support members (52) and (56) of the stitching means (7), opened and closed, and stitched to the sheet material (2). do.

At this time, at least one (53) of the drive trains (53) and (57) that drive the support members (52) and (56) is driven only in the direction of opening the binding member (6) by the one-way mechanism (96). Driven.

Note that the symbols in parentheses are just examples and do not limit the configuration in any way.

(f) Example Embodiments of the present invention will be described below along with the drawings.

As shown in FIG. 1(a), the automatic sheet material binding device 1 includes a perforation section 3 for perforating a bundle of sheet materials 2, a conveyance section 5 for transporting the perforated bundle of sheet materials 2, and A ring 6 is used to stitch together the bundle of sheet materials 2 that have been conveyed.
It consists of a ring opening 7 that opens and closes, and each is disposed on the base plate 1a of the device 1.

First, the perforation part 3 will be explained with reference to FIG. 1(a) and FIGS. 4 to 8. As shown in FIG. 1, a die 10 is disposed close to a mounting table 9 for the sheet material 2, and a sensor lever 11a that looks upward from below the mounting table 9 and detects the presence of the sheet material 2 is installed. installed, this sensor lever 11
The sheet material 2 is moved downward by the movement of the sensor lever 11a.
A sensor 11 is provided to detect the presence of. Also,
As shown in FIG. 4, the die 10 has a large number of square punched holes 1.
0a are arranged in a row, and two through holes 1ob are provided on the downstream side thereof. A pair of short stoppers 12a and a pair of long stoppers 12b are removably provided in the through hole 10b for positioning by abutting the end of the sheet material 2,
The pair of stoppers 12a are integrally connected to each other, and the pair of stoppers 12b are also integrally connected to each other, and further provided with solenoids 13a and 13b that lower when turned off and lift up when turned on. 1
2a and 12b are driven by solenoids 13a and L3b, respectively. Then, the punched hole 10a and the stopper 12
Distance aI2 between a and the bent piece of 12b. ．． I2. The relationship is I
21 Kui! , 2 (this stopper is not limited to two sets) In addition, as shown in Figs. 1, 5, and 6, 15 is the shaft of the handle 16, and the handle 16 is rotated counterclockwise. When the die 10 is moved, the bunch 17 is guided by the guides 19 and 20 and descends to pass through the punching hole 10a of the die 10, as will be described later. As shown in FIGS. 7 and 8, the die 10 is fixed to the die base 21, the guides 19 and 20 are fixed to the support base 22, and
This support stand 22 is fixed to the die base 21. Further, a sleeve 23 is guided at the upper part of both ends of the support base 22, and a push rod 25 is guided at the lower part, a press plate 26 is fixed to the lower end of the push rod 25, and the push rod 25 is slidably attached to the sleeve 23. A compression spring 27a is interposed between the flange 25a of the push rod 25 and the upper end of the push rod 25, and a coiled compression spring 27b inserted into the push rod 25 is interposed between the flange 25a of the push rod 25 and the support base 22. Further, a push stand 29 is provided, and the upper end of the bunch air is attached to this push stand 29.
Further, the sleeve 23 is pressed downward, and handle arms 30 fixed to both sides of the shaft 15 are engaged with protrusions 29a at both ends of the sleeve 23. When the handle 16 (see FIGS. 1(a) and 5) is rotated counterclockwise, the push platform 29 is lowered. Note that the protrusion 23a is attached to the bunch 17, and the push stand 29
A limiting piece 29b attached to the holder is brought into contact with the holder. Further, the lock plate 31 that engages with the notch 26a of the presser plate 26 is formed in the shape of a hook, and a claw 31 is attached to the vertical part of the tip of the lock plate 31.
A is provided. The lower end of this vertical section is connected to the pin 32.
The protrusion 31b at the upper end of the proximal vertical piece is locked in the elongated hole 33a of the release link 33, and the upper end of the release link 33 is connected to the arm 35 extending downward from the pusher 29. The push plate 26 is pivoted to the lock plate 3.
It is adapted to be engaged and disengaged by a claw 31a of No. 1.

Further, as shown in FIG. 5, sensor levers 36a and 36b that rotate together with the handle 16 are provided, an upper limit sensor 37 facing the sensor lever 36a at an upper position, and a lower limit sensor 39 facing the sensor lever 38b at a lower position are provided. It is being

Next, the conveying section 5 will be explained with reference to FIG. 1(a), FIG. 5, and FIG. 9.

A conveying roller 40a peeking upward from below the placing table 9 for the sheet material 2 is rotatably attached to the device 1 and is driven by a motor 8.
It is rotationally driven by. The pickup lever 41 is pivotally supported at its intermediate portion by a pin 41a fixed to the mounting 71, and the lower end portion of the pickup arm 42 is pivotally supported to the lever 41 by a pin 41b on the left side of the shaft 41a.

Further, the upper conveyance roller 4 is attached to the left end of a lever 44 whose right end is rotatably attached to the lever 41 by a shaft 41a.
0b is pivotally supported, and a gear 48a is attached to the right end of the lever 44.
This gear 48a and a concentric pulley 48b are connected to the shaft 41.
A gear 54a that meshes with the gear 48a, a pulley 54b that is coaxial with the gear 54a, and a pulley 54c that is concentric and integral with the lower conveying roller 41a are provided. A pulley 48c is provided concentrically and integrally with the upper conveyance roller 41b. and,
Belts 8a, 8b, and 8c are wound around the pulleys of the motor 8 and the pulley 54c, the pulley 54c and the pulley 54b, and the pulley 48b and the pulley 48c, respectively, and the clockwise rotation of the motor 8 causes the upper and lower conveyance rollers 40a and 40b to be wrapped around each other. When the sheet material 2 is pinched, the sheet material 2 is conveyed to the right. Further, a tension spring 41d is attached to the lever 41 to bias the lever 41 clockwise around the shaft 41a, and the arm 42 is biased upward via the pin 41b. Also, the device i! 1
A hook 46 is pivotally supported by a pin 45 fixed to the lever 41, and a protrusion 41c at one end of the vertical portion of the lever 41 engages with a locking portion 46a of the hook 46. This hook 46
The other end is pivoted to the tip of the core frame 47a of the solenoid 47, and when the solenoid 47 is turned on, the hook 46 rotates clockwise and engages the protrusion 41C from the right side of the protrusion 41c, and when the solenoid 47 is turned off, the hook 46 rotates clockwise. The hook 46 is rotated counterclockwise and removed from the protrusion 41c. Further, when the sensor lever 36b rotates counterclockwise by operating the handle 16 to block the lower limit sensor 39 and at the same time lower the arm 42 against the upward biasing force, the left side of the lever 41 The lever 44 is lowered, and the lever 44 is released from the locking piece 41e provided on the lever 41.
At the same time, the upper conveyance roller 40b moves to the lower conveyance roller 4 due to its own weight.
0a is pressed. In addition, an entrance guide 49 (see FIG. 9) that limits the thickness of the bundle of sheet materials 2 is pivotally supported by a pin 49a fixed to the device 1, and hangs down so as to be rotatable clockwise, and can be rotated counterclockwise. is blocked by the stopper 49b. In addition, 50 in FIG. 9 is a conveyance table and the die 1 is
It is provided adjacent to the downstream side of 0. Reference numeral 51 denotes a ring entrance guide that prevents scattering of the tip of the bundle of sheet materials 2 being conveyed, and is suspended from a fixed pin 51a so as to be rotatable clockwise, and counterclockwise rotation is prevented by a stopper 51b. blocked. Then, with respect to the movement of the sheet material 2 in the direction of arrow A, the leading edge of the sheet material 2 is aligned and the sheet material 2 is moved in the direction of arrow A.
However, when pulling out the sheet material 2 in the direction of arrow B, even if the ring 6 is attached, the thickness of the sheet material 2 shown in FIG.
As shown in b), it can be easily removed.

Next, the ring opening/closing part 7 is
This will be explained with reference to the figures. An upper claw 52 extending horizontally in a comb shape and having a tip curved diagonally upward is guided vertically inside the side wall of the ring opening/closing part body 7a, and is connected to the gear train 53.
It is designed to be driven by a motor 55 via. Further, a gear train 57 includes a plurality of lower claws 56 that protrude obliquely upward and are arranged so that their tips are perpendicular to the conveying direction of the sheet material 2.
It is designed to be driven by a motor 59 via. Further, when the ring 6, which is a binding member made of plastic and has a plurality of finger portions curved in a horizontal direction in a substantially circular shape on one spine, is inserted into the upper claw 52, the ring 6
A sensor lever 60, which rotates counterclockwise by the outer diameter of A plurality of ring sensors 61 that also detect size are arranged in a row.

As shown in FIGS. 1B and 1C, a tension spring 91 is interposed between the upper claw main body 52a and the lower claw main body 56a, and a locking portion fixedly attached to the lower claw main body 56a. A tension spring 93 is attached between the upper claw body 52a and a stopper 99 at the lower limit position of the upper claw body 52a.

Also, a gear 94 that meshes with the upper claw body 52a at the end of the gear train 53
is fixed to a shaft 95 pivotally supported by the ring opening/closing part main body 7a, a gear 97 is attached to this shaft 95 via a freewheel 96, and a gear 98 meshes with this gear 97,
The freewheel 96 transmits rotation in the direction of arrow C from the gear 97 to the shaft 95, but does not transmit rotation in the opposite direction (in the above, a freewheel may be interposed between the gear 94 and the shaft 95). , or may be interposed between another gear and the shaft that drives it).

Furthermore, the operating mechanism of the lower claw 56 will be explained in detail with reference to FIGS. 13 and 14. FIG. 13 is a front view, and FIG. 14 is a side view.

A guide plate 63 equipped with a groove 62 having a horizontal portion and a vertical portion inside both sides of the lower claw 56 is attached to the ring opening main body 7a, and the protrusion 65 of the lower claw 56 is guided to this groove 62. It's becoming like that. Further, a pair of oblique grooves 66 are provided in the middle portion of the main body of the lower claw 56, and an oblique protrusion 67 that slides in the oblique grooves 66 is provided on the drive plate 70 that moves up and down. This drive plate 70 is supported by the ring opening/closing part main body 7a so as to be movable up and down, and a rack 71 is provided on the drive plate 70, and this rack 7.1 meshes with the terminal gear of the gear train 57 shown in FIG. It looks like this.

A presser plate 72 is provided on the front side of the lower claw 56, and the presser plate 72 and the drive plate 70 are fixed to each other by screws 75 passing through oblique grooves 73 in the main body of the lower claw 56.

Further, as shown in FIG. 15, the main body 7 of the ring opening/closing part 7
A pin 76 is provided which rotatably supports the main body 7a on the base plate 1a, and a microswitch 77 is provided which turns on and sends a signal when the main body 7a is tilted and fixed.

In addition, as shown in FIG. 15(b), when the main body 7a is tilted and fixed, the auxiliary guide 79 is rotated counterclockwise around the bin 79a by an elastic member (not shown), and in the manual mode. It forms a guide surface for the sheet material 2. Further, as shown in FIG. 17, a silver ring opening 82 and a silver ring opening 83 are attached to the base plate 1a of the mounting [1].

Since the present invention is constructed as described above, its operation will be explained with reference to FIGS. 2 and 3.

First, when automatic is selected in FIG. 2, the input switch 81 is turned on, and the finger of the ring 6 is inserted into the upper claw 52, the sensor lever 60 rotates counterclockwise around the axis Boa, and the ring 6 The sensor 61 receives the signal inserted at the same time as the magnitude signal.
The control section 85 that receives the signals from the a and 61b sends a signal to the display section 80 to display a sheet material set display (Sl). At this time, the control unit 85 controls the solenoid 1 according to the size of the ring 6.
3a or 13b is turned on until the stopper 12a or 12b protrudes into the through hole 10b of the die 10. Then, the sheet material 2 is inserted until it abuts against the stopper 12a or 12b. At the same time, the control unit 85 receives a signal from the sensor 11 and sends a signal to the display unit 80 to display the handle lowering operation (S2).
When the upper limit sensor 37 is turned off due to the disappearance of the sensor lever 36a, the control section 85 that has received the signal sends a signal to the solenoid 13a or 13 that is rising.
b to lower the stopper 12a (or 12b). At the same time, the pusher 29 is pressed downward by the handle arm 30, and the sleeve 23 is pressed against the compression spring 2.
7a and 27b, the presser plate 26 integrated with the presser rod 25 presses the bundle of sheet materials 2. The lowered presser plate 26 is then locked by the claw 31a of the lock plate 31.

At the same time, the bunch air descends and perforates the bundle of sheet materials 2 on the die 10, and at the same time, the pickup arm 42 resists the upward biasing force and is pressed downward by the sensor lever 36b. The lever 41 is lowered, and the lower conveyance roller 40b and the lever 44 press the bundle of sheet materials 2 downward with their own weight. At the same time, the control section 85 receives a signal from the lower limit sensor 39, which is turned on, and sends a signal to the solenoid. 47 is turned on, the lever 41 is locked via the core frame 47a, the locking part 46a of the hook 46, and the protrusion 41c, and a handle raising operation is displayed on the display unit 80 according to a signal from the control unit 85 (S3). At this time, if the lower surface of the presser plate 26 presses the bundle of sheet materials 2 before the tip of the bunch 17, the bundle of sheet materials 2 can be pressed earlier than the beginning of perforation by the die 10, and the sheet Disturbance (shift) of the bundle of material 2 can be prevented. Such adjustment is performed by compression spring 27a,
This can be done by adjusting 27b. Moreover, even if the presser plate 26 quickly presses the bundle of sheet materials 2, the compression springs 27a and 27b are present, and it is possible to prevent excessive compressive force from being applied to the presser rod 25 and the sleeve 23.

Next, raise the handle 16 and press the sensor lever 36b.
Upon receiving the signal to turn off the lower limit sensor 39, the control section 85 sends a signal to open the ring 6. On the other hand, when the sensor lever 36a turns on the upper limit sensor 37, the punch 17 has already been pulled out by the handle 16 via the pusher 29. Then, when the bunch air is completely pulled out from the sheet material 2, the pushing platform 29 rises, and the lock plate 31 or pin 32 is moved through the arm 35 and the release link 33.
The holding plate 26 is rotated counterclockwise around , the holding plate 26 is released from the locked claw 31a, and the holding plate 26 is separated from the bundle of sheet materials 2. Then, the control unit 85 receives the signal to turn on the upper limit sensor 37, and sends a signal to the conveyor rollers 40a, 40.
When the stepping motor 8 that drives the ring rM is turned on, the ring rM is transported by a certain number of pulses to the ring rM jump portion 7 by the transport rollers 40a and 40b.
1 prevents the leading end of the bundle of sheet materials 2 from being disturbed, and after stopping at a suitable position relative to the open link 6 shown in FIG. 12, the ring 6 closes. In addition, upon receiving the signal to stop the stepping motor 8, the control section 85 sends a signal to turn off the solenoid 47, so that the protrusion 41c moves to the locking section 4.
6a, the lower conveyance roller 40b is lifted up via the locking piece 41e of the lever 41 and the lever 44 by the urging force of the tension spring 41d. After the ring 6 is closed, a stitching completion display is displayed on the display section 80, and the stitching operation is completed (S4). Further, after completing the work, the operator manually pulls out the bound sheet material 2 in the same direction as the direction in which it was conveyed.
rotates clockwise and does not resist (see Figure 9(b))
.

When operating the sheet material automatic stitching device 1 described above, for example, when the operator attaches the link 6 to the upper claw 52, if a finger or the like is caught between the upper claw 52 and the lower claw 56. The first
Explaining with reference to FIGS. (b) and (C), the driving force of the reversible motor 55 is driven by the freewheel 96 via the gear 54 to drive the upper claw main body 52a in the upward direction, but not in the downward direction. Do not drive the tension spring 91.
．． 93, the upper claw main body 52a is lowered until it abuts against the stopper 99.

Therefore, even if the operator pinches a finger or the like between the upper claw 52 and the lower claw 56, the finger or the like will not receive the driving force of the motor 55, and will only receive the tensile force of the tension springs 91 and 93. Therefore, by properly adjusting the tension of the tension springs 91 and 93, it is possible to prevent injuries to fingers and the like.

Further, even if a solid object is caught between the upper claw 52 and the lower claw 56, the claws 52, 56, etc. can be prevented from being distorted or damaged.

Next, the operation of the lower claw 56 will be explained with reference to FIGS. 13 and 14. When the rack 71 is lowered by the motor 59 via the gear train 57 shown in FIG.
is guided by the guide plate 63 and descends. and drive plate 7
The oblique protrusion 67 of 0 applies a rightward component force in FIG. 13 to the lower claw 56 via the oblique groove 66. Then, the protrusion 65 of the lower claw 56 is guided by the horizontal part of the groove 62 of the guide plate 63, moves to the right, becomes capable of engaging with the finger of the ring 6, and is then moved by the downward force. Guided by the vertical portion of the groove 62, the lower claw 56 descends and opens downward like the fingers of the ring 6. When the rack 71 is pushed upward by the motor 59, the lower claw 56 moves in the opposite manner to the above. Note that the holding plate 72 is attached to the screw 75.
It is integrated with the driving plate 70 via the lower claw 56 and always holds the lower claw 56 therebetween. For this reason, since the screw 75 moves in the same manner as the oblique protrusion 67, an oblique hole 73 similar to the oblique groove 66 is provided in the lower claw 56.

In addition, in the above embodiment, the sheet material 2 that has been stitched
The main conveyance roller 40
b, without turning off the solenoid 47, and when the stitching completion display is displayed on the display section 80, the motor 8 that drives the conveyance rollers 40a and 40b is reversed to move the stitched sheet materials 2. It may also be configured to be pulled out automatically.

By doing so, it is possible to improve the labor and time saving of the stitching work.

Next, the operation of the manual mode will be explained. As shown in FIG. 15, when the main body 7a is tilted about the pin 76 and fixed, an on signal is generated from the microswitch 77, and upon receiving this signal, the control section 85 switches the control system to manual mode.

Then, the auxiliary guide 79 rotates clockwise around the bin 79a to support and guide the sheet material 2 in the manual mode.

In this mode, if the perforation capacity of the punch 17 or the like is insufficient for the stitching capacity of the ring 6, it is necessary to perform additional stitching by punching multiple times. This mode is also used when there are cases where it is desired to perform replacement, etc., and automatic mode alone is inconvenient.

In the manual mode, since the sheet material 2 is not automatically conveyed, the ring 6 is opened and opened by operating the ring opening amount 82 and the ring closing amount 83 shown in FIG. 17. The opening amount is determined by the operator's judgment. The opening amount for the ring 6 is memorized by the control unit 85 as in the automatic mode, so the operator can obtain the opening amount of the ring 6 by pressing the ring opening amount 82 as many times as he deems optimal (if , even if the ring opening amount 82 is too large, the device 1
(It is designed so that the opening amount does not become larger than the one memorized in the previous step.) 0 When the work is completed, the ring close button 83 is pressed to perform the closing operation and the work is completed.

If you want to add or replace sheet material 2, please refer to Fig. 16(a).
When the sheet material 2 is set under the upper claw 52 and the ring opening amount is adjusted as shown in FIG. 16(b),
Sheet material 2 can be removed freely, and sheet material 2 can be added/added.
You can freely replace them.

By tilting the main body 7a, visibility can be improved and usability can be further expanded.

(g) As described in detail, according to the present invention, the stitching member (6)
A drive train (5) that drives the support members (52) and (56) of
3) and (57), the one-way mechanism (96) drives the support member (52) only in the direction in which the stitching member (6) is opened.
), (56) is not driven in the direction that reduces the gap between the support members (52) and (56), it is possible to prevent the operator from getting his or her hand caught between the support members (52) and (56), thereby increasing the safety of the device (1). You can maintain your sexuality. Further, the support member (52), (
56) The support members (52), (56) with a foreign object sandwiched between them
) etc. can be prevented from being distorted or damaged.

[Brief explanation of drawings]

FIG. 1(a) is a cross-sectional side view showing an embodiment of the present invention.
Figure (b) is a side view showing the drive train of the upper and lower claws that open and close the ring, Figure 1 (c) is a plan view showing the freewheel installation of Figure 1 (b), and Figure 2 is the automatic mode of the embodiment. Fig. 3 is a block diagram of the control system, Fig. 4 is a perspective view showing the goo and the stopper, Fig. 5 is a side view of the punching part, and Fig. 6 shows the relationship between the goo, punch, and stopper. An enlarged side view, FIG. 7 is a side view of the sheet material pressing mechanism,
FIG. 8 is an enlarged perspective view of FIG. 7, FIG. 9 is a side view of the conveyance section, and FIG. 9(a) is a state in which sheet material is conveyed,
Fig. 10 is a perspective view of the upper and lower claws, Fig. 11 is a side view of the ring inserted into the upper claw, and Fig. 12 is a side view showing the state in which the bound sheet materials are removed. FIG. 13 is an enlarged front view showing the operating mechanism of the lower claw; FIG. 14 is a side view of FIG. 13;
Figure 5(a) is an explanatory diagram showing manual mode, Figure 15(b)
is a side view of Fig. 15(a), Fig. 16(a) is an explanatory diagram showing the ring closed in manual mode, Fig. 16(b)
is an explanatory diagram showing the ring in the open state in the above, and the first
FIG. 7 is a perspective view showing the ring opening/closing button in manual mode.

Claims (1)

[Scope of Claims] 1. A perforating means for perforating a sheet material, a conveying means for conveying the perforated sheet material to a position where it is stitched to a stitching member, and a means for supporting the stitching member on the conveyed sheet material. A stitching means having a pair of support members that opens and closes and stitches together;
An automatic sheet material stitching device comprising: a one-way mechanism that operates in the direction of opening the stitching member, interposed in at least one of the drive trains that drive the support member. .