JP2011037216A - Perfect binder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a perfect binder which enables a user to easily perform fine adjustment of a position where pages of a book are attached to cover paper even when there are variations in stopping position precision due to individual difference of motors or abrasion. <P>SOLUTION: When a clamper 5 arrives at the position of a deceleration starting sensor 53, the clamper 5 starts deceleration of a moving speed of the clamper 5 and, at the same time, starts counting of pulse from a light transmission type sensor 52. Further, when the moving speed of the clamper drops to a prescribed speed, the deceleration is stopped and, thereafter, when the count number of pulse from the light transmission type sensor 52 amounts to a prescribed count number, it is decided that the clamper 5 arrives at a cover paper-attaching position and the movement of the clamper 5 is stopped. When performing the fine adjustment of the position where the pages of a book are attached to the cover paper, the prescribed count number of pulse is set by performing plus/minus operation from the portion of designated pulse to enable the adjustment at the level of a tenth of one millimeter. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a perfect binding bookbinding machine that attaches a cover to the main body by moving the body (sheet bundle) to a cover attachment position of the cover attaching machine by a clamper while the cover is fixed.

  In the bookbinding process, wired binding for performing a binding process by a stitcher on a body obtained by collecting one printed sheet and wireless binding for performing a gluing process on the body are known. Further, when a cover is pasted on the bound body, the cover is pasted using a cover pasting machine.

  The cover pasting machine includes a back pressing plate that moves up and down by driving a cam and a pair of nip plates that are arranged on the upper surface of the back pressing plate and move toward and away from each other. The cover is placed on the lower end surface of the main body, which is positioned above the pair of nip plates, by applying the back push plate by driving the cam, and sticking the pair of nip plates together. The lower end side surface of the main body is clamped from both sides by moving closer (see, for example, Patent Document 1).

JP 2000-168264 A

  In the conventional perfect binding machine, a sensor that detects the clamper is provided at the cover attachment position. If the sensor reacts when moving to the pasting position, the movement motor of the clamper is stopped to stop the body at the cover pasting position.

And if the user wants to change the attachment position of the cover and the body, or if he wants to make fine adjustments, the sensor position is forcibly moved, the position where the body is sandwiched by the clamper is shifted, or the cover is fixed. Since operations such as shifting the position were performed manually, the position adjustment could not be performed accurately.
In addition, as described above, in the control to stop by detecting that the clamper has reached the cover attachment position, the stop position is caused by individual differences of motors that move the clamper, deterioration of the stop position accuracy due to wear based on the years of use, etc. There was also a phenomenon that changed.

  The present invention has been made in view of the above problems, and even if there is a difference in the stop position accuracy due to individual differences of motors or wear, the user can easily finely adjust the position where the body and the cover are attached. An object of the present invention is to provide a perfect binding machine.

  According to a first aspect of the present invention, there is provided a saddle stitching machine for attaching a cover to a body by moving the body to a cover attachment position by a clamper in a state in which the cover is fixed. A controller for controlling movement; a pulse generator for generating a pulse in accordance with the movement of the clamper; and a clamper detection sensor provided in front of the attachment position of the cover. The controller detects the clamper The distance from the sensor position to the stop position is detected by the pulse count from the pulse generator, and when the count reaches a predetermined adjustable count, the controller stops the movement of the clamper. It is characterized by that.

  According to a second aspect of the present invention, in the saddle stitching machine of the first aspect of the present invention, when the clamper detection sensor detects the clamper, the controller controls the movement speed of the clamper. It is characterized by being gradually lowered.

  According to the saddle stitch binding machine of the invention according to claim 1, the distance from the clamper detection sensor position to the stop position is changed to the pulse count number, and when the specified pulse count number is reached, the clamper is stopped. Therefore, in fine adjustment of the attachment position of the body and the cover, it is possible to adjust at the comma millimeter level by setting plus or minus from the specified number of pulse counts, and it is easy to make fine adjustment of the attachment position it can.

  Further, according to the saddle stitching machine of the invention according to claim 2, since the speed can be gradually decreased until the stop after the reaction of the clamper detection sensor, the inertia of the motor generated at the stop regardless of the high speed or the low speed. In this case, it is possible to prevent the stoppage from being shifted and to increase the accuracy of the pasting position.

It is a figure which shows the state which the clamper of the perfect binding bookbinding machine of this invention exists in a cover sticking position. It is a figure which shows the state which the clamper of the perfect binding machine moved to the other side. It is a figure which shows the detail of a nipping part. It is a figure which shows the state which the back press plate of the nipping part of FIG. 3 raised. It is a conceptual diagram which shows arrangement | positioning of the sensor which looked at the perfect binding machine from upper direction. It is a block diagram which shows the structure of the control part of a perfect binding machine. It is an example of the detailed setting screen displayed on an operation panel. It is a flowchart which shows the effect | action of the movement control of a clamper. It is a figure which shows the clamper speed change at the time of movement control of a clamper. It is an example of the detailed setting screen of the clamper displayed on the operation panel.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments in which a binding device according to the present invention is applied to a binding device in which a nipping portion serving as a cover sticking portion also serves as a clamp portion will be described with reference to the drawings.
1 and 2 are diagrams showing a configuration of a perfect binding machine, FIG. 1 is a diagram showing a state where the clamper is in a cover sheet attaching position, and FIG. 2 is a diagram showing a state where the clamper is moved to the opposite side. It is.

This perfect binding machine comprises a base 1, a nipping part 2, a gluing part 3, a milling part 4, and a clamper 5 constituting a cover sticking part.
As shown in FIG. 2, the nipping portion 2 provided on the base 1 is arranged on a back push plate 21 that moves up and down by driving a cam, and an upper surface of the back push plate 21. ), And a pair of nip plates 22a and 22b that move toward and away from each other.

  3A and 3B are diagrams showing details of the nipping portion 2, FIG. 3A is a front view of the nipping portion, and FIG. 3B is a side view of the nipping portion. As shown in the drawing, stepping motors 23a and 23b, cams 24a and 24b, cam followers 25a and 25b, and rods 26a and 26b are provided on the top side and the ground side of the back push plate 21, respectively.

  The stepping motors 23a and 23b are separately driven. When the stepping motors 23a and 23b rotate, the cams 24a and 24b rotate and the cam followers 25a and 25b are pushed up, so that the back push plate 21 is inserted via the rods 26a and 26b. Is pushed up.

  When the cover is pasted at this nipping portion, as shown in FIG. 3B, after the cover 8 is disposed on the pair of nip plates 22a and 22b, the back cover is pressed against the lower end surface of the sheet bundle 6 to which the glue 7 is adhered. As shown in FIG. 4 (b), the cover 21 is pushed up, and the cover 8 is attached to the sheet bundle 6 by pressing the side surfaces on both sides of the lower end with a pair of nip plates 22 a and 22 b. .

As shown in FIG. 2, the gluing unit 3 can store the glue in the melt tank 31, and performs a gluing process on the back surface of the sheet bundle 6 by the gluing drum 32.
Further, as shown in FIG. 1, the milling unit 4 includes a milling machine 41 and a cutting blade 42 formed on the milling machine 41, and the paper bundle 6 is passed when the paper bundle 6 passes over the milling machine 41. The back surface of the paper sheet is aligned so that the paste is evenly applied to the entire surface of the back surface, and the cutting blade 42 forms a cut groove that bites into the back surface of the sheet bundle 6 with a rough pitch. . This groove is for expanding the surface area of the back portion of the inner book for applying the glue to improve the strength and at the same time achieve a good binding quality.

  Further, the clamper 5 includes a movable clamp plate, a fixed clamp plate, and a clamp plate holding frame (not shown). After the sheet bundle 6 is inserted between the pair of clamp plates, the movable clamp plate is moved toward the fixed clamp plate. That is, by closing the clamper 5, the sheet bundle 6 can be held and the sheet bundle 6 can be conveyed.

FIG. 5 is a conceptual diagram showing the arrangement of sensors when the saddle stitching machine is viewed from above. The pulse plate 51 is provided on the shaft of the moving motor of the clamper 5, and the light transmission type sensor 52 is provided with the pulse plate. By detecting light transmission through the hole formed in 51, a pulse is output according to the movement of the clamper. The pulse plate 51 and the light transmission type sensor 52 constitute a pulse generation unit of the present invention. Then, by counting the pulses from the light transmission type sensor 52, it is possible to calculate how many mm the clamper has moved, and the movement amount of the clamper is set to 0.2 mm per pulse. The pulse plate 51 can also be provided on a shaft that is rotated by movement of a belt that moves the clamper.
The deceleration start sensor 53 is a sensor that detects the passage of the clamper 5 and is provided in front of the cover sticking position.

On the other hand, FIG. 6 is a block diagram showing the configuration of the control unit of the saddle stitching machine. The control unit 1a drives the stepping motors 23a and 23b of the nipping unit and also drives the nip plates 22a and 22b. The mechanism 1b, the clamper driving mechanism 1c for driving the opening and closing of the clamper 5, the gluing part driving mechanism 1d for driving the gluing part 3, and the milling part driving mechanism 1e for driving the milling part 4 are controlled. A detection pulse generated in response to the movement of the clamper from the light transmission type sensor 52 and a clamper detection signal from the deceleration start sensor 53 are input to the control unit 1a. 1a controls the movement of the clamper.
The operation panel 1f displays an operation / setting screen, and the control unit 1a outputs the operation / setting screen information to the operation panel 1f to display the operation / setting screen of the saddle stitching machine. The setting information set on the operation panel 1f is taken in and stored in a storage unit (not shown).

  FIG. 7 shows an example of a detailed setting screen displayed on the operation panel 1f. As shown in the figure, detailed setting of roughing, clamper and nipping can be executed. In the nipping setting screen shown in the figure, “finishing strength” for adjusting the clamping force of the nip plate, “nipping time” for adjusting the clamping time by the nip plate, and sticking to the sheet bundle to adjust the finishing of the back “Nipper height” that adjusts the height of the back plate according to the amount of glue, “Nipping wait time” that adjusts the drying time of the glue, and when the back finish is different between the top side and the ground side of the paper bundle “Nipper tilt adjustment” to set the inclination of the back plate and “Clip binding waiting time”, which is the time to dry the glue when not attaching the cover, is displayed on the screen. Each can be set by pressing the “+” button or the “−” button.

  Each setting can be executed by pressing the roughing and clamper tags at the top of the detailed setting screen of FIG. In the setting of roughening, the milling amount and gluing amount of the sheet bundle can be changed by setting the height of the back pushing plate at the time of clamping the sheet bundle.

Next, the operation when attaching a cover sheet to a sheet bundle will be described with reference to the drawings.
As shown in FIG. 1, after the operator inserts the back of the sheet stack 6 into the clamper 5 with the back surface of the sheet bundle 6 facing the back pressing plate 21 while the height of the back pressing plate 21 is adjusted to the height at the time of clamping. When a start button (not shown) is pressed, the control unit 1a drives the clamper driving mechanism 1c, thereby closing the clamper 5 and holding the sheet bundle 6 on the clamper 5. Thereafter, the controller 1a rotates the stepping motors 23a and 23b to rotate the cams 24a and 24b, and lowers the cam followers 25a and 25b, thereby lowering the back push plate 21 via the rods 26a and 26b.

  Next, the control unit 1a drives the clamper driving mechanism 1c to move the clamper 5 in the direction of the milling unit 4. Therefore, during this movement, when the sheet bundle 6 passes over the milling machine 41, the sheet bundle 6 is moved. The back surface is flush with the cut surface, and the cutting blade 42 forms a cut groove that is slightly deeply cut into the back surface of the sheet bundle 6 at a rough pitch. At this time, since the melt tank 31 of the gluing unit 3 is in the lowered state, the glue does not adhere to the back surface of the sheet bundle 6 while the clamper 5 is moving.

  When the clamper 5 is stopped at the position shown in FIG. 2 and the operator presses the start button again after setting the cover on the nipping unit 2, the control unit 1a controls the gluing unit drive mechanism 1d. By doing so, the melt tank 31 of the gluing part 3 is raised. Next, the control unit 1a drives the clamper driving mechanism 1c to move the clamper 5 in the direction of the nipping unit 2. During this movement, the rear surface of the sheet bundle 6 is made flush with the milling unit 4 again. In addition, a cut groove is formed, and in the gluing unit 3, the hot melt molten glue stored in the melt tank 31 is applied to the lower end surface of the sheet bundle 6 by the gluing drum 32, and then the clamper is moved to the cover sheet pasting position. Let

On the other hand, FIG. 8 is a flowchart showing the action of the movement control of the clamper by the control unit 1a when the clamper 5 is moved in the direction of the nipping unit 2 as described above. The waveform diagram of FIG. The operation of the movement control will be described.
When the movement of the clamper 5 in the direction of the nipping unit 2 is executed, the control unit 1a starts the clamper movement control program shown in the flowchart of FIG. 8 and drives the clamper driving mechanism 1c, as shown in FIG. as such, to move the clamper at a constant speed _{V 1} (step 101).

Next, the control unit 1a determines whether or not the deceleration start sensor 53 has responded (step 102), and determines that the clamper 5 has reached the position of the deceleration start sensor 53 and the deceleration start sensor 53 has responded. By controlling the clamper driving mechanism 1c, as shown in FIG. 9, the movement speed of the clamper is started to be reduced (step 103), and counting of the pulses shown in FIG. 9 from the light transmission type sensor 52 is started. (Step 104). Next, the control unit 1a is, the moving speed of the clamper determines whether or not reduced to a predetermined speed V ₂ (step 105), if the moving speed of the clamper is determined to have decreased to a predetermined speed V _2, a deceleration stop, to maintain the moving speed of the clamper at a predetermined speed _{V 2} (step 106).

After stopping the deceleration of the moving speed of the clamper, the control unit 1a determines whether or not the count number of pulses from the light transmission type sensor 52 has reached a predetermined count number, so that the clamper has reached the designated stop position. Whether or not (step 107). For example, as shown in FIG. 5, if the distance from the deceleration start sensor 53 to the stop position is 100 mm, the predetermined count number is 500 pulses.
When the pulse count reaches the predetermined count, the controller 1a controls the clamper drive mechanism 1c to stop the movement of the clamper 5 (step 108), and then ends the program of the flowchart of FIG. To do.

By stopping the clamper 5, as shown in FIG. 3, the lower end surface where the glue 7 of the sheet bundle 6 is applied is positioned above the pair of nip plates 22a and 22b.
Then, after the nipping waiting time set on the detailed setting screen in FIG. 7 has elapsed, the control unit 1a drives the stepping motors 23a and 23b separately to rotate the cams 24a and 24b, and the cam followers 25a and 25b are moved. By pushing up, the back pushing plate 21 is pushed up via the rods 26a, 26b.

  As the back pressing plate 21 is raised, the sheet bundle 6 is applied to the back pressing plate 21 between the nip plates 22a and 22b with the cover sheet 8 interposed therebetween as shown in FIG. 8 is stuck. At almost the same time, the controller 1a drives the nip plate driving mechanism 1b to move the nip plates 22a and 22b, tightens the vicinity of the edge on the back side of the sheet bundle 6 from both sides, and folds the cover 8 to cover the cover. By placing 8 along the sheet bundle 6, a cover is attached to form the spine of the sheet bundle 6.

  On the other hand, if the user looks at the booklet with the cover attached and wishes to perform fine adjustment of the position of the main body and cover, the clamper is displayed on the detailed setting screen shown in FIG. 6 displayed on the operation panel 1f. By pressing the tag, the detailed setting screen of the clamper is displayed, and fine adjustment of the position where the main body and the cover are pasted can be executed.

  FIG. 10 shows an example of a detailed setting screen of the clamper. In this setting screen, the moving speed of the clamper and the opening amount of the clamper can be set, and the position where the body is pasted can be adjusted. When adjusting the position where the body is pasted, the position where the body is pasted can be adjusted by pressing the “+” button or the “−” button displayed at the bottom of the detailed setting screen. One scale is 0.4 mm, and the predetermined pulse count number is changed from 500 pulses up and down according to the setting.

As described above, in fine adjustment of the attachment position of the body and the cover, it is possible to adjust at the comma millimeter level by setting plus or minus from the specified pulse, so easy adjustment of the attachment position is easy. It can be carried out.
In addition, since the speed is reduced to a predetermined speed after the reaction of the deceleration start sensor, it is possible to prevent the deviation of the stop due to the inertia of the motor that occurs at the stop regardless of the high speed or low speed, and increase the accuracy of the pasting position. be able to.

  In the above embodiment, the example in which the saddle stitching machine of the present invention is applied to the saddle stitching bookbinding machine serving as a nipping part and a clamp part has been described. However, the saddle stitching bookbinding machine of the present invention includes a clamp part and a milling machine. The present invention can also be applied to a perfect binding apparatus in which a section, a pasting section, and a cover pasting section are provided separately in sequence.

  Further, in the above embodiment, stepping motors are provided on the top side and the ground side of the back plate, respectively, and driven separately, so that when the back finish differs between the top side and the ground side of the sheet bundle, Although the inclination of the plate can be adjusted, if it is not necessary to adjust the inclination of the nipper, the back pressing plate can be pushed up by one stepping motor.

DESCRIPTION OF SYMBOLS 1 Base 2 Nipping part 21 Back pushing plate 22a, 22b Nip board 23a, 23b Stepping motor 24a, 24b Cam 25a, 25b Cam follower 26a, 26b Rod 3 Gluing part 31 Melt tank 32 Gluing drum 4 Milling part 41 Milling machine 42 Cutting Blade 5 Clamper 6 Paper bundle 7 Glue 8 Cover sheet 51 Pulse plate 52 Light transmission sensor 53 Deceleration start sensor

Claims (2)

A wireless binding machine that attaches a cover to the body by moving the body to a cover attachment position with a clamper while the cover is fixed,
A control unit that controls movement of the clamper, a pulse generation unit that generates a pulse in accordance with the movement of the clamper, and a clamper detection sensor provided in front of the attachment position of the cover, and the control unit includes: The distance from the clamper detection sensor position to the stop position is detected by the pulse count from the pulse generator, and when the count reaches a predetermined adjustable count, the controller moves the clamper. The bookbinding machine is characterized in that the binding is stopped. In the saddle stitch binding machine according to claim 1,
The perfect binding apparatus, wherein when the clamper detection sensor detects a clamper, the control unit gradually decreases the moving speed of the clamper.

Images