JP2001001247A - Automatic book polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely polish a fore edge, a top edge and a tail edge of a book with gathering smaller than a front board, and to improve the efficiency of the polishing work and the working environment. SOLUTION: A holding device 30 to hold a gathering with a front board of a book opened is provided in a housing 16. A first polishing device 31 having a pair of polishing panels 53A, 53B to respectively polish a top edge 6 and a tail edge 7 of the book is provided. A second polishing device 32 having a polishing bar 85 to polish a fore edge 5 of the book is provided. In addition, a supporting device 33 having a support plate 97 which is selectively opposite to a lower part of the book 1 to support the fore edge 5 is provided between the holding device 30 and the second polishing device 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic book polishing apparatus for polishing the edge, top and bottom of various books whose contents are smaller than the cover.

[0002]

2. Description of the Related Art In public facilities such as libraries, books in a library are disinfected for a fixed period or irregularly from a sanitary point of view, and are provided to users. If the cover of the book is soiled by hand marks or the like, it is washed with a cleaning solution, and if the inside of the three cuts, that is, the fore-edge, heaven (head), and ground (damaged) are stained with hand marks or dust, polishing is performed. are doing. In addition, not only used books, but also new books, when polishing the fore edge, the sky, and the ground, the paper becomes whiter than the original whiteness of the paper, making it even more beautiful and the surface to be polished becomes a flat surface , The commercial value of the book can be increased.

[0003] Among books of various kinds, especially for books having the same size as the cover, an automatic polishing apparatus for polishing the fore-edge, the top and the ground is conventionally known. In this automatic polishing apparatus, a book, a top, a top and a ground including a cover are polished by a polishing machine while holding a book.

On the other hand, as shown in FIG. 9, the cover 2 is larger than the contents 3, and the book 2 in which the cover 2 and the contents 3 are bound together by gluing the back 4 with the cover 3 is damaged by the automatic polishing apparatus described above. Only the fore edge 5, the ceiling 6, and the ground 7 cannot be polished so as not to cause the problem, so that an operator usually uses a paper file.

[0005]

As described above, the contents 3
Can not be polished by the automatic polisher about the fore edge 5, the heaven 6 and the ground 7 of the book 1 whose is smaller than the cover 2.
The worker was sanding with a paper file. However, in manual polishing, when polishing, the book 1 is held with the cover 2 opened with one hand, and the fore-edge 5 and the top 6 are held with the other hand.
And the ground 7 must be polished, and the work efficiency is extremely poor (200 to 300 per worker).
Volumes), especially the edge 5 of these polished surfaces is concavely curved unlike the top 6 and the ground 7 which are flat surfaces, so it is difficult to polish at a constant depth along the curved surface. When polished, there is a problem that a piece of paper is easily opened and damaged, requiring skill.

In addition, the work environment is poor because the paper dust is scattered, so that it is necessary to work while wearing a mask.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. It is an object of the present invention to reliably polish the edge, top, and ground of a book smaller than the cover. It is an object of the present invention to provide an automatic book polishing apparatus that improves the efficiency and work environment of a book.

[0008]

According to a first aspect of the present invention, there is provided an automatic book polishing apparatus for polishing a fore-edge, a top, and a ground of a book smaller than the cover, wherein the cover is opened. A holding device for holding the contents in a state, a first polishing device having a pair of polishing disks for polishing the top and the ground, and a second polishing device having a polishing bar for polishing the fore edge. It is characterized by the following. In the present invention, with the cover open, the first polishing device polishes the top and bottom of the book, and the second polishing device polishes the fore edge.

[0009] The second invention is the above-mentioned first invention, wherein:
The clamping device and the first and second polishing devices are housed in a housing, and a dust collecting device is provided in the housing. In the present invention, the housing prevents the paper dust from scattering outside, and the dust collector collects the paper dust in the housing.

According to a third aspect of the present invention, in the first or second aspect, the holding device comprises a plurality of sets of holding plates, each of which comprises a pair and which is arranged in a vertical direction, and a driving device for driving these holding plates. And a supporting device having a supporting plate which selectively faces below the contents and supports the fore-edge between the clamping device and the second polishing device. In the present invention, the size of the support plate of the support device is set from the edge of the book to the lower end of the holding plate.

A fourth aspect of the present invention is the above-mentioned first, second or third aspect.
In the invention, the rotation direction of the pair of polishing plates of the first polishing apparatus is set to the direction toward the reference surface of the holding plate for holding the contents, and a stopper is provided for contacting the surface of the contents on the rotation direction side of the polishing plate. It is characterized by the following. In the present invention, the stopper prevents the paper piece from being deformed by the polishing machine.

According to a fifth aspect of the present invention, in the first, second, third or fourth aspect, the fore edge of the content is curved in a concave shape, and the polishing bar of the second polishing apparatus is provided at the center of the content. The polishing is performed by rotating from the center to one end in the direction from the center to the one end, and then rotating from the center to the other end in the direction from the center to the other end. In the present invention, the repulsive force of the paper piece can be reduced. That is, the repulsion force of the paper piece differs depending on the rotation direction of the polishing bar. If the rotation direction is the direction from the center to the end of the contents, the paper piece becomes first-order and the repulsion force is small, and if the rotation direction is opposite, the paper And the repulsion increases.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. 1 is a plan view showing an embodiment of an automatic book polishing apparatus according to the present invention, FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1, and FIG. 3 is III-II of FIG.
FIG. 4 is a cross-sectional view taken along a line I, and FIG. 4 is a cross-sectional view of a main part of the second polishing apparatus.

In these figures, an automatic book polishing apparatus 1 is shown.
Numeral 0 is provided with a grinder 11, a compressor 12 and a dust collector 13 arranged on both sides of the grinder 11, respectively. The compressor 12 includes compressed air for driving a driving device of various devices described below in the housing 16 through a pipe 14, and the various devices and the dust collecting device 13.
Compressed air (air pressure: 4 to 5 kg / cm ² , air volume: about 45 L / min) for cleaning the filter is supplied to the polishing machine 11 and the dust collecting device 13. The dust collecting device 13 is connected to the polishing machine 11 by a hose 15.
The inside of the polishing machine 11 is evacuated at a displacement of about 3 m ³ / min during polishing and cleaning to collect paper dust. Since the compressor 12 and the dust collecting device 13 are commercially known and conventionally known, detailed description thereof will be omitted.

The polishing machine 11 automatically grinds the edge 5, the top 6 and the ground 7 of the book 1 in which the contents 3 are bound by the larger cover 2 according to a sequence, and a caster 17 is attached to the lower surface. And a portable housing 16. The housing 16 is formed in a box shape and has an opening 18 at the center of the upper surface.
8 is covered by an opening / closing cover 19. Opening 18
Is formed in a rectangular shape long in the front-rear direction of the polishing machine 11, as shown in FIG. The opening / closing cover 19 is formed of a translucent material such as an acrylic resin, and has a rear edge pivotally attached to the upper surface of the housing 16 via a hinge 20 so as to be freely opened and closed in a vertical direction. A power switch 2 having an LED 98 is provided at the front end of the upper surface of the housing 16.
1, a start switch 22, a removal switch 23, a cleaning switch 24, a maintenance switch 25, a polishing changeover switch 26, and an emergency stop switch 27 are provided, and a display line indicating a position in the front-rear direction when the book 1 is inserted into the opening 18. 28 is displayed, and a foot switch 29 is provided on the floor surface. The display line 28 corresponds to the opening 18.
The three types of large, medium, and small books differing in size are shown with the center in the front-back direction of the book as the center.

As shown in FIG. 2, when the book 1 is polished, the cover 2 is opened, the spine 8 is turned up, the contents 3 are turned down, and the top 6 and the ground 7 are aligned with the front-back direction of the grinder 11. Opening 1
8 and inserted into the housing 16. The heaven 6 and the earth 7 may be reversed.

Inside the housing 16, a holding device 30 for holding the contents 3 of the book 1 and a first polishing device 31 for polishing the top 6 and the ground 7 of the book 1 with a pair of polishing disks 53A and 53B. , A second polishing device 32 for polishing the fore-edge 5 by a polishing bar 85, a support device 33 having a movable back-and-forth support plate 97 for supporting the fore-edge 5 from below, and controlling these devices according to a sequence (not shown). A control unit and the like are provided. Hereinafter, the configuration and the like of these devices will be described in detail.

In FIG. 2 and FIG.
Reference numeral 0 denotes first, second, and third holding devices 35, 36, and 37 disposed in three stages at an upper position inside the housing 16.

The first holding device 35 is used to polish the top 6 and the ground 7 of the book 1. The first holding device 35 is a pair of first holding devices 35 arranged to face left and right across the opening 18 of the housing 16. Holding plates 38A and 38B and a pair of air cylinders 39A and 3 as a driving device for moving these holding plates 38A and 38B toward and away from each other.
9B.

Each of the holding plates 38A and 38B is formed in a U-shape. The holding plates 38A and 38B comprise an upper plate 38a and a lower plate 38b which are vertically opposed to each other, and a vertical plate 38c which connects these plates. Upper plate 38a when polishing 6 and ground 7
The cover 2 of the book 1 is supported from below by the vertical plate 38c.
Is configured to hold the contents 3 from both sides. The width D of the holding plates 38A, 38B is set to be smaller than the minimum height of the book (the dimension from the top to the ground), and when the contents 3 are held, the inside of the top 6 and the ground 7 is held. In other words, the ends of the contents 3 on the top 6 and ground 7 sides protrude by the dimension d1 on both sides of the holding plates 38A and 38B. In this case, if the width D is 142 mm and the polished size of the book 1 is 162 to 250 mm, the protrusion dimension d1 is 10 to 10.
It is about 54 mm.

The air cylinders 39A and 39B are fixed to brackets 41A and 41B mounted on left and right frames 40A and 40B of the housing 16, respectively. The air cylinder 39B is provided with a sensor 42 capable of digitally outputting the amount of movement of the holding plate 38B, thereby measuring the thickness of the contents 3 of the book 1. Contents 3
The thickness of the plate is determined by stopping the holding plate 38A at the reference position.
The holding plate 38B is brought into contact with the holding plate 38A, and the distance from the contact position to the initial position retracted by a predetermined amount is measured in advance and stored in the control unit, and the holding plate 38B moves forward from the initial position and moves. The distance can be measured by detecting the amount of movement up to contact with 3, and subtracting the amount of movement from the distance.

The second holding device 36 is used for polishing the top 6 and the ground 7 of the book 1 and for polishing the fore-edge 5. The second holding device 36 is formed in a U-shape, and is formed in a U-shape. The fixed-side holding plate 43A and the movable-side holding plate 43B arranged to face left and right below 38B.
And an air cylinder 44 for moving the movable-side holding plate 43B toward and away from the fixed-side holding plate 43A. The fixed side holding plate 43A is fixed to the bracket 41A, and a vertical surface forms a reference surface 45 when the contents 3 are held. The air cylinder 44 is fixed to the bracket 41B via another bracket 46. The width of the holding plates 43A and 43B is also equal to the width D of the holding plates 38A and 38B.
Is set the same as

The third holding device 37 is provided with the fore-edge 5 of the book 1.
Is used together with the second holding device 36 when grinding the fixed side holding plate 43A and the movable side holding plate 4
A pair of holding plates 48A and 48B are arranged below and opposed to each other on the left and right, and these holding plates 48A and 48B.
And a pair of air cylinders 49A and 49B for moving the air cylinders toward and away from each other. Holding plate 48A, 48
B is formed in an inverted L-shape. Air cylinder 49A,
49B is fixed to the brackets 41A and 41B, respectively.

In FIG. 3, the first polishing device 31
Are a pair of low-speed air cylinders 51A and 51B arranged at the center in the width direction inside the housing 16 so as to face front and rear, and first drive motors 52A and 52A each having the polishing disks 53A and 53B. 52B and second drive motors 54A and 54B for moving the drive motors 52A and 52B in a direction approaching and moving away from each other in synchronization.
And so on. Each air cylinder 51A, 51B
Are installed with the movable rod 55 facing upward, and tables 56A and 56B are provided on the upper end of the movable rod 55, respectively, and the second drive motors 54A and 54
4B are installed horizontally.

The first drive motors 52A, 52B are
A support bar 5 provided on movable bodies 63A and 63B that is moved in the front-rear direction by the second drive motors 54A and 54B.
7 is slidably mounted in the front-rear direction, and is urged in the book 1 direction by a compression coil spring 58. The support bar 57 is attached to the movable members 63A and 63B so as to be adjustable in angle in the vertical direction, so that the polishing disks 53A and 53B can be set in a vertical plane as shown by a two-dot chain line in FIG. On the other hand, the first drive motors 52A and 52B are inclined so as to face downward at an angle α (about 10 °). Note that FIG. 3 shows a state of horizontal support. The first drive motors 52A, 52B are usually waiting at the most distant position, and are movable by the second drive motors 54A, 54B during polishing.
B move forward and approach to each other by the polishing
A and 53B are configured to contact the top 6 and the ground 7 of the book 1. The contact pressure at this time is adjusted to a substantially constant value by the compression coil spring 58 compressing.
In addition, the contact between the polishing disks 53A and 53B and the ceiling 6 and the ground 7 is configured to be detected by the sensors 64A and 64B, respectively.

The polishing disks 53A and 53B have a diameter of 10
0mmφ, 15mm on the surface of a disk about 10mm thick
A non-woven fabric having a thickness of about 180 nm is adhered, and a fine abrasive of about 180 mesh, for example, sand is applied to the surface of the non-woven fabric. In addition, the polishing machines 53A and 53B
When it is elastically deformable and pressed against the top 6 and the ground 7 of the book 1,
The portion is elastically deformed, so that the top 6 and the ground 7 are in line contact over the entire width. Therefore, when polishing the ceiling 6 and the ground 7, the polishing disks 53A, 5A
It is not necessary to move 3B in the left-right direction, and the entire surface of the ceiling 6 and the ground 7 can be polished at once.

The direction of rotation of the polishing discs 53A, 53B is directed toward the reference surface 45 of the holding plate 43A for holding the contents 3, as viewed from the driving motors 52A, 52B side.
As shown in FIG. 1, the polishing disk 53A on the front side rotates clockwise, and the polishing disk 53B on the rear side rotates counterclockwise. Thus, the polishing plates 53A, 53B
The reason why the rotation direction is set to the same reference plane 45 direction when viewed from the operator side is to prevent the contents 3 from being twisted. Further, when the rotation direction is in the direction of the reference surface 45, the position of the reference surface 45 does not change even if the thickness of the contents 3 changes, so that it is not necessary to move and adjust a later-described escape prevention mechanism 60 according to the thickness. To do that. Note that such polishing discs 53A and 53B are commercially available such as those used for removing oxide films, rust, and stains, for example, S Ichiguchi S Co., Ltd.
D10015-M can be used.

Here, when the top 6 and the ground 7 are polished by the polishing disks 53A and 53B, it is predicted that the top 6 and the ground 7 escape in the direction of the reference surface 45 and cannot be polished. Therefore, in the present invention, the first drive motors 52A and 52B are provided with the escape prevention mechanism 60. This escape prevention mechanism 6
Reference numeral 0 denotes a stopper 58 formed of a rotatable roller attached to each of the drive motors 52A and 52B via an arm 59.
When the polishing discs 53A, 53B contact the top 6 and the ground 7 of the book 1, the stopper 58 is provided on the surface on the side where the holding plates 38A, 43A are in contact at both ends of the contents 3, in other words, the reference surface. It is configured to contact the surface on the 45 side.

2 to 4, the second polishing apparatus 32 includes a drive motor 70 installed below the inside of the housing 16 and a table 71 which is reciprocated in the left and right directions by the drive motor 70. ing. The drive motor 70 is mounted on a bracket 72 installed on the inner bottom surface of the housing 16, and a screw rod 73 is connected to an output shaft via a coupling 74. Table 7
1 is a pair of right and left nuts 75 screwed into the screw rod 73.
And four guide bars 76 are erected on the upper surface, and a low-speed lifting / lowering air cylinder 77 is provided.

A movable plate 78 and a frame 79 are provided on the guide bar 76 so as to be movable up and down. The movable plate 78 is fixed to an upper end of a rod 77 a of the air cylinder 77. The movable plate 78 is normally held at the lowermost position shown in FIG. A compression coil spring 80 is elastically mounted on a portion between the movable plate 78 and the frame 79 of each of the guide bars 76, thereby moving the movable plate 78 downward,
The frame 79 is urged upward. A double nut 82 is screwed into the upper end of each of the guide bars 76 via a wave washer 81, thereby preventing the frame 79 from coming off the guide bar 76.

The frame 79 has a front plate 79a and a rear plate 79b opposed to each other by being formed in an upward U-shape when viewed from the side. The polishing bar 85 and the polishing bar 85 are rotated forward and backward. A drive motor 86 is mounted. A polishing bar 85 is provided on the front plate 79a and the rear plate 79b.
A pair of rotating shafts 87 and 88 for detachably supporting the motor are attached, and the drive motor 86 is attached to the rear plate 79b.

The rotation of the output shaft 89 of the drive motor 86 is transmitted to the rear rotation shaft 88 via the toothed pulleys 90a and 90b and the timing belt 91.

The polishing bar 85 has a diameter of 15 mmφ,
A non-woven fabric is stuck on the surface of a cylinder with a length of about 250 mm,
Further, a fine abrasive of about 180 mesh, for example, sand is applied to the surface of the nonwoven fabric, and the nonwoven fabric is detachably attached to the pair of rotating shafts 87, 88 via couplers 92a, 92b. The rotation shaft 87 on the front side is
It is attached to the front plate 79a so as to be movable back and forth, and is urged rearward by a compression coil spring 93. The rear rotating shaft 88 is rotatably mounted on the rear plate 79b so as to be prevented from moving in the axial direction. When the movable plate 78 and the frame 79 are raised by the operation of the air cylinder 77, the polishing bar 85 moves to the fore edge 5 of the book 1.
And the contact pressure at this time is
Is set substantially constant by being lowered by the compression of the compression coil spring 80. The wave washer 8
Reference numeral 1 is for facilitating the tilting of the frame 79 when the book 1 is tilted and held and the fore edge 5 is not horizontal, and for bringing the polishing bar 85 into contact with the entire length of the fore edge 5. Further, when replacing the polishing bar 85, if the rotating shaft 87 is moved forward against the compression coil spring 93, the polishing bar 85 can be easily removed. Further, the bracket 72 is provided with an origin sensor 94 (FIG. 2) for detecting an origin position of the polishing bar 85.

In FIG. 2 and FIG.
3 includes an air cylinder 96 fixed to the bracket 41A, and a support plate 97 moved forward and backward by the air cylinder 96. The support plate 97 is located above the second polishing device 32 and below the third holding device 37. And are arranged in close proximity.

The support plate 97 is normally retracted to a retracted position shown by a solid line in FIG. 2, and the first and second clamping devices 35, 3 are provided.
6, when the contents 3 of the book 1 are clamped from the thickness direction, when the top 6 and the ground 7 are polished, and when the edge 5 is polished and the book 1 is taken out of the housing 16, the air cylinder 96 is used. Is operated to stop immediately below the book 1 as shown by the two-dot chain line.

Next, the polishing operation of the book automatic polishing apparatus 10 having the above structure will be described with reference to FIGS. FIG.
(A) to (e) are diagrams for explaining the operation, and FIGS.
Is a flowchart. First, as shown in FIG. 6, the power switch 21 is turned on in step 100, and the holding device 30, the first polishing device 31, the second polishing device 32, and the support device 33 are respectively returned to predetermined origin positions, and the initial position is set. Then, the dust collector 13 is activated (step 101).

The initial position of the holding device 30 is shown in FIG.
As shown in (a), the holding plate 38A is moved forward by the operation of the air cylinder 39A so as to be aligned with the holding plate 43A.
When the air cylinders 39B, 44, 49A, 49B are turned off, the holding plates 38B, 43B, 48A, 48B are retracted and retracted.

The initial position of the first polishing device 31 is such that the first drive motors 52A, 52B are moved to the uppermost position by the operation of the air cylinders 51A, 51B, and the first drive motors 54A, 54B are used to move the first drive motors 52A, 52B to the first position. Drive motor 52
A, 52B are retracted and the polishing disks 53A, 53B are retracted rearward.

The initial position of the second polishing device 32 is such that the polishing bar 85 is retracted to the lowest position by turning off the air cylinder 77, and the polishing bar 8 is driven by the driving motor 70.
5 is the position directly below the reference plane 45 of the clamping device 30 (origin position)
Is moved to the state.

The initial position of the support device 33 is such that the support plate 97 is moved forward by the air cylinder 96 and the reference surface 45 is moved.
Is stopped immediately below the position. The LED 98 (FIG. 1) of the power switch 21 flashes until the holding device 30, the first and second polishing devices 31, 32, and the support device 33 return to the home position. When it is completed, it lights up (step 102).

Next, the opening / closing cover 19 is opened, and the book 1 to be polished is inserted into the housing 16 through the opening 18 (step 103). When inserting the cover 2, the cover 2 is opened, the contents 3 are directed downward, the top 6 and the ground 7 are inserted in the front-rear direction of the grinder 11, and the cover 2 is sandwiched by the holding plates 38A, 38.
Place it on the top surface of B and hold it by hand so that it does not fall. Then, in this state, the foot switch 29 is turned on by stepping on the foot (step 104).

When the foot switch 29 is turned on, the air cylinders 39B and 44 are actuated by the drive signal from the control unit to move the holding plates 38B and 43B forward respectively, thereby holding the holding plates 38A and 38B and the holding plates 43A and 43B.
Sandwich the contents 3 of the book 1 (step 10
5). As a result, the switch 42 (FIG. 2) is connected to the holding plate 38B.
Is detected, and the thickness of the contents 3 is measured based on the signal (step 106). When the thickness of the contents 3 is measured, the drive motor 70 is driven to move the table 71 to the left in FIG.
The polishing bar 85 is moved directly below the center of the contents 3 (step 107). Further, the air cylinder 96 is turned off and the support plate 97 is retracted to the retracted position (step 10).
8). FIG. 5B shows this state.

Next, the start switch 22 is turned on (step 109). Thereby, the second drive motor 54
A, 54B are driven to drive the first drive motors 52A, 52B.
Is moved forward, and the polishing machines 53A and 53B are
And the ground 7 (step 110). When the polishing machines 53A and 53B contact the top 6 and the ground 7 of the book 1,
The second drive motors 54A and 54B are stopped, and the first drive motors 52A and 52B are driven to drive the polishing discs 53A and 53B.
Are rotated toward the reference plane 45 (step 11).
1). FIG. 5C shows this state. This polishing machine 53
The number of rotations of A and 53B is about 1000 to 1200 rpm, and if it is 1400 rpm or more, the paper pieces are undesirably burnt. When the rods 55 are gradually lowered by turning off the air cylinders 51A and 51B, the polishing discs 53A and 51B are turned off.
The top 6 and the ground 7 are also ground because the 53B descends.
Polished by B (step 112).

In FIG. 7, when the polishing of the ceiling 6 and the ground 7 by the polishing disks 53A and 53B is completed (step 113),
The first drive motors 52A and 52B stop (step 1).
14) Then, the second drive motors 54A, 54B are driven to move the first drive motors 52A, 52B back to the retreat position (step 115).

Next, at step 116, the air cylinders 51A, 51B are operated to activate the first drive motors 52A, 52A.
2B is raised, and the polishing disks 53A and 53B are returned to the initial positions (step 117). Thereby, the first polishing device 31 returns to the initial position.

When the first polishing device 31 returns to the initial position, the air cylinder 96 is operated to move the support plate 97 forward by a predetermined amount to position the support plate 97 below the contents 3 (step 1).
18). In addition, the air cylinder 49A operates to operate the holding plate 4.
8A is moved forward to match the reference plane 45 (step 119).

Next, the air cylinders 39A and 39B are
At F, the holding plates 38A, 38B are retracted to release the holding state of the contents 3 (step 120). Subsequently, the air cylinder 44 is turned off and the holding plate 43B is slowly retracted (step 121). As a result, the book 1 drops by a certain amount, and the contents 3 are supported by the support plate 97 (step 122). FIG. 5D shows this state.

Next, the air cylinders 44 and 49B are operated to move the holding plates 43B and 48B forward, and the holding plates 43A and 48B are moved forward.
And 43B, 48A and 48B sandwich the contents 3 (step 123). Next, the air cylinder 96 is turned off and the support plate 97 is retracted to the retracted position (step 12).
4). Next, the drive motor 86 is driven to operate the air cylinder 77 while rotating the polishing bar 85 (step 126), whereby the polishing bar 85 is raised and brought into contact with the center of the edge 5 (step 126). 5 is polished (step 127).

When polishing the fore-edge 5, the holding plate 38A,
Reference numeral 38B is retracted to the retract position as shown in FIG. 5D, and holds the cover 2 in a state of being opened obliquely upward.

The polishing of the fore-edge 5 is not performed at once from one end to the other end, but is performed in two steps, and is sequentially polished on the left and right halves. That is, FIG.
As shown in (e), first, the polishing bar 85 is brought into contact with the center of the fore edge 5 and moved rightward by half the thickness of the contents 3 to polish the right half of the fore edge 5. Polishing bar 85 at this time
Is the rotation direction that coincides with the movement direction, that is, the clockwise rotation. When polishing of the right half is completed, it is returned to the center. When returning to the center, the air cylinder 7
7 is turned off, and the polishing bar 85 is slightly lowered. Next, the polishing bar 85 is returned to the center of the fore edge 5 and raised,
Contact the fore edge 5 again. Then, the left half of the fore-edge 5 is polished by being moved to the left by half the thickness of the contents 3. The rotation direction of the polishing bar 85 at this time has been switched,
The rotation direction coincides with the moving direction, that is, the left rotation.

When the direction of rotation of the polishing bar 85 is switched so as to coincide with the direction of movement, in other words, from the center to the moving side end, the sheet of paper moves in the forward direction with respect to the direction of rotation of the polishing bar 85. Therefore, it can be polished favorably with a small repulsive force. Further, since the fore-edge 5 has a concave curved surface, when the polishing bar 85 is moved from the center to the end, the contact pressure on the fore-edge 5 gradually increases, whereby the compression coil spring 80 (FIG. 3) is compressed. The frame 79 is lowered. Therefore, the contact pressure with respect to the edge 5 can be kept substantially constant, and the polishing can be performed with a constant polishing depth.

When polishing the fore-edge 5, FIG.
As shown in (e), the lower ends of the contents 3 are held by the holding plates 48A, 48A.
B is projected below distance B by a distance d0 (= about 2 mm).
When the lower end of the contents 3 is protruded below the holding plates 48A and 48B in this manner, when the polishing bar 85 moves to the end of the contents 3, the end piece of paper is sandwiched between the polishing bar 85 and the holding plates 48A or 48B. It can be polished well without being worn or cut. The width of the fore edge 5 that can be polished is about 15 to 48 mm.

When the polishing of the fore-edge 5 is completed (step 12)
8) The air cylinder 77 is turned off and the polishing bar 85 is lowered to the lowermost position (step 129). Next, the air cylinder 96 is operated to move the support plate 97 forward and stop below the book 1 (step 130). next,
The air cylinders 44, 49A, 49B are turned off, the holding plates 43B, 48A, 48B are retracted to the initial position, and the holding state of the book 1 is released (step 131).

When the holding state of the book 1 is released, the LED 98 of the take-out switch 23 is turned on to notify that the book 1 can be taken out. Also, the dust collector 13 is OF
It becomes F. Thus, the book 1 is taken out of the polishing machine 11 by opening the opening / closing cover 19 (step 132).

After the book 1 is taken out, the take-out switch 23
Is turned on (step 133), the holding plate 38A moves forward and returns to the initial position shown in FIG. 5A (step 134). Also, the support plate 97 moves forward and returns to the initial position (step 135). Further, the drive of the drive motor 70 returns the polishing bar 85 to the origin position (step 136), and the polishing of the book 1 ends (step 137).

After finishing the polishing, when cleaning the polishing machine 11, the cleaning switch 24 is turned ON. As a result, all devices in the grinder 11 are locked, and the dust collector 13
Operates. Then, an operator removes the front cover of the housing 16 and cleans the apparatus by blowing compressed air to various devices in the housing 16 with an air gun. When the cleaning is completed, the cleaning switch 24 is turned off. As a result, the locked state of the various devices is released, and the dust collection device 13 is stopped.

When the maintenance switch 25 is turned on in the non-polishing state, the first drive motors 54A, 54A
B rotates to move the first drive motors 52A and 52B and the polishing disks 53A and 53B forward. Further, the drive motor 70 is driven to move the polishing bar 85 to the origin position. After that, all the devices are locked, and the polishing machines 53A, 5A are locked.
3B, enables replacement of the polishing bar 85.

The polishing changeover switch 26 is for switching between full-polishing (three-face polishing of the fore-edge, top, and ground) and two-surface polishing (polishing of the top and the ground). ~ Step 5, forehead 5, heaven 6
If the three surfaces of the ground 7 and the ground 7 are automatically polished and the two surfaces are switched to polishing, only the two surfaces of the top 6 and the ground 7 can be automatically polished in steps 100 to 113 described above.

When the emergency stop switch 27 is turned on, the operations of all the devices are stopped and released, and return to the origin position.

In the book automatic polishing apparatus 10, the fore edge 5, the top 6, and the ground 7 of the book 1 can be automatically polished, and the work efficiency can be remarkably improved. Incidentally, in the present apparatus, 60 to 70 books can be polished per hour, depending on the thickness of the contents 3. In addition, since the worker only needs to insert the book 1 into the housing 16, the physical burden on the worker is small, the skill is not required, and the paper dust is collected by the dust collecting device 13. Therefore, the working environment is good.

In the above embodiment, the top 6 and the ground 7 are polished first, and then the fore-edge 5 is polished first, but the present invention is not limited to this. Polish the fore-edge 5 instead of the thing, then heaven 6 and ground 7
Of course, the edge 5, the top 6, and the ground 7 may be ground simultaneously. In the present embodiment, the dimension from the top 6 to the ground 7 is in the range of 162 to 250 mm, and the thickness of the fore edge 5 is 15 to
Polishing of books in the range of 48 mm was made possible, but the present invention is not limited to this, and books other than the above range can be polished by changing the size of the holding plate, the polishing plate, and the polishing bar.

[0062]

As described above, according to the book automatic polishing apparatus according to the present invention, the fore edge, the top and the ground can be automatically polished without damaging the cover, thereby saving labor and improving the efficiency of the polishing operation. Can be improved. In addition, since the entire surface to be polished can be polished with a constant thickness without requiring skill, the unevenness can be removed and the quality of the book can be improved. Also, since the paper dust does not scatter in the work place, the working environment is good, and it is not necessary to wear a mask, and the health of the worker can be maintained.

In addition, the present invention relates to polishing of
Since the stopper is brought into contact with the surface on the rotation direction side of the polishing machine, the contents can be reliably polished without the contents being escaped by the polishing machine. Furthermore, the present invention is configured such that when the fore edge is polished sequentially while dividing the right half and the left half into two times, the polishing bar is polished while rotating in the same direction as the moving direction. Polishing can be reliably performed without biting.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an automatic book polishing apparatus according to the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a cross-sectional view of a main part of a second polishing apparatus.

5A to 5E are views for explaining a polishing operation.

FIG. 6 is a flowchart of a polishing operation.

FIG. 7 is a flowchart of a polishing operation.

FIG. 8 is a flowchart of a polishing operation.

FIG. 9 is a perspective view of a book whose contents are smaller than the cover.

[Explanation of symbols]

1 ... Book, 2 ... Cover, 3 ... Contents, 5 ... Small, 6 ... Ten, 7
... ground, 10 ... book automatic polishing device, 11 ... polishing machine, 12 ...
Compressor, 13: dust collector, 16: housing, 1
8 opening, 19 opening / closing cover, 30 clamping device, 31
.., First polishing device, 32, second polishing device, 33, support device, 35, first clamping device, 36, second clamping device, 37
... Third clamping device, 38A, 38B.
3B: clamping plate, 48A, 48B: clamping plate, 53A, 53
B: polishing machine, 58: stopper, 85: polishing bar, 97:
Support plate.

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] June 23, 1999 (1999.6.2
3)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Figure 2

[Correction method] Change

[Correction contents]

FIG. 2

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

[Procedure amendment 5]

[Document name to be amended] Drawing

[Correction target item name] Fig. 5

[Correction method] Change

[Correction contents]

FIG. 5

[Procedure amendment 6]

[Document name to be amended] Drawing

[Correction target item name] Fig. 9

[Correction method] Change

[Correction contents]

FIG. 9

 ──────────────────────────────────────────────────続 き Continuation of front page (71) Applicant 593134081 Full Heart Japan Co., Ltd. 3- 20-8 Chuo, Ota-ku, Tokyo (71) Applicant 399037760 Business Supply Co., Ltd. 1-48-3 Oi, Shinagawa-ku, Tokyo ( 72) Inventor Yukio Ishibashi 2-5-6 Irifune, Chuo-ku, Tokyo Inside Okada Industry Co., Ltd. (72) Inventor Akio Masaki 3-20-8, Chuo, Ota-ku, Tokyo F-term in Fullheart Japan Co., Ltd. 3C043 CC03 CC12 DD02 DD05 3C047 HH11 3C049 AA03 AA16 AA18 AB04 CA01 CB03

Claims (5)

[Claims] 1. An automatic book polishing apparatus for polishing a fore-edge, a top, and a ground of a book whose contents are smaller than a cover, comprising: a holding device for holding the contents with the cover open; First having a pair of polishing disks for polishing
An automatic book polishing apparatus, comprising: a polishing apparatus according to any one of claims 1 to 4, and a second polishing apparatus having a polishing bar for polishing the fore edge. 2. The automatic book polishing apparatus according to claim 1, wherein said holding device and said first and second polishing devices are housed in a housing, and said housing is provided with a dust collecting device. Polishing equipment. 3. A book automatic polishing apparatus according to claim 1, wherein said holding device comprises a plurality of sets of holding plates, each of which is a pair and which is disposed in a vertical direction, and a driving device for driving said holding plates. And a supporting device having a supporting plate selectively facing below the contents and supporting the fore-edge between the clamping device and the second polishing device. 4. The automatic book polishing apparatus according to claim 1, wherein the direction of rotation of the pair of polishing disks of the first polishing apparatus is a direction toward a reference surface of a holding plate for holding the contents. An automatic book polishing apparatus, wherein a stopper is provided for contacting a surface of the polishing table on the rotation direction side. 5. The automatic book polishing apparatus according to claim 1, wherein the edge of the content is curved in a concave shape, and the polishing bar of the second polishing device is located at one end from the center of the content. An automatic book polishing apparatus characterized in that it is polished by rotating in the direction from the center to one end and then polishing in the direction from the center to the other end in the direction from the center to the other end.