JP3598503B2 - Automatic lubricating oil injection device for clamp pin in bookbinding system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bookbinding system such as a perfect binding machine or a single booklet compaction machine that performs bookbinding while holding and transporting a book with signatures and the like sandwiched by a clamp for each booklet. The present invention relates to an automatic lubricating oil injection device for automatically injecting lubricating oil into connected pins.
[0002]
[Prior art]
FIGS. 1 and 2 show a conventionally known wireless binding machine. The rotation of the motor 1 is transmitted to the clamp transport chain 6 via a rotation transmission mechanism 2 using a belt and a pulley, a transmission 3, and bevel gears 4.5, and the clamp transport chain 6 is guided by the sprocket wheels 7 on both sides to circulate. It is supposed to be. A large number of clamps 8 are connected to the clamp transport chain 6 at regular intervals. When the clamp transport chain 6 circulates and runs, the multiple clamps 8 circulate simultaneously by the interval while maintaining a constant interval. Conveyed. Unbound books sent from a collating machine (not shown) are clamped for each book by a fixed fastening plate 8a and a movable fastening plate 8b of each clamp 8, and various bookbindings arranged around the clamp transport chain 6 are provided. It is sequentially conveyed to each station for work. Hereinafter, this transport operation is referred to as “frame feed”, and when specifying one clamp, it is referred to as “frame”.
[0003]
FIG. 2 also shows the state of the book at each station. The unbound book sent from the collating machine is a backing station using a horizontal plate that moves up and down, a back cutting station using a back cutting cutter, and a book. Gullying station with gully cutter to improve the gluing of the back, horizontal gluing station for horizontal gluing, back gluing station for back gluing, wrinkle growing station with reverse rotating rollers after gluing, synchronized with the cover sent from the cover feeder The frames are sequentially fed to a tuning station, a press station that presses the spine of the book and both sides thereof. Bad books are ejected from the ejection station.
[0004]
In such a perfect binding machine, all clamps 8 are simultaneously transported by the clamp transport chain 6 circulated by the sprocket wheels 7 on both sides, so that the fixed fastening plates 8a of the clamps 8 are moved in the transport direction (clamp transport). It is connected to the clamp transport chain 6 by a pair of pins separated in the length direction of the chain 6).
[0005]
These pins are supported by bearings fixed to the vertical back surface of the fixed fastening plate 8a in order to connect the links of the clamp conveying chain 6 and to change the direction of the clamp 8 around the sprocket wheel 7. I have. In order to keep the clamp transport chain 6 and the clamp 8 running smoothly at all times, the clamp transport chain 6 is stopped and lubricating oil (oil or grease) is periodically injected (supplied) to these pins. ing.
[0006]
[Problems to be solved by the invention]
However, in the past, all the injections were performed manually, and the number of frames (the number of clamps) was about 4 to 50, so the number of injection points was doubled to 8 to 100, and much labor and time were required. However, such work has caused a reduction in bookbinding efficiency.
[0007]
Therefore, an object of the present invention is to provide an automatic lubricating oil injection device capable of automatically injecting lubricating oil into a pin connecting a clamp and a clamp transport chain even when a stop position of a clamp is not accurately determined. To provide.
[0008]
[Means for Solving the Problems]
The automatic lubricating oil injection device according to the present invention connects a clamp to a clamp transport chain in a bookbinding system in which a book is sandwiched by each clamp for each book, and a plurality of clamps are circulated and bound by a clamp transport chain and bound. An automatic lubricating oil injection device for automatically injecting lubricating oil into a pair of pins, wherein the lubricating oil is provided with the following means.
[0009]
A movable table movable in the direction of movement of the clamp, a nozzle elevating table mounted on the movable table so as to be raised and lowered by an actuator, and supporting a pair of injection nozzles corresponding to a pair of pins; A connecting member that is supported by a base via an extendable rod and that can be operated by an actuator is provided between a connecting position where the connecting position can be linked to the clamp and can be interlocked with the clamp and a retracting position where the connecting is released.
Then, after the connecting member is moved to the connecting position and stopped by the lowering of the nozzle elevating platform, the nozzle elevating platform further descends, whereby the pair of nozzles descends to the heads of the pair of pins, and lubricating oil is applied to the pair of pins. Is to be injected.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
[0011]
When the automatic lubricating oil injection device according to the present invention is applied to the perfect binding machine shown in FIG. 2, for example, it is installed at a lubricating oil injection station subsequent to the discharge station and stops at a pair of pins of one clamp 8 stopped here. Lubricating oil can be automatically injected.
[0012]
FIGS. 3 and 4 show an example of the structure of a pair of pins 9 connecting the clamp 8 to the clamp transport chain 6 and an automatic lubricating oil injection device A for automatically injecting lubricating oil into the pair of pins 9 at the same time. .
[0013]
A pair of brackets 10 are fixed to the vertical back surface of the fixed tightening plate 8a of each clamp 8 so as to be separated in the direction of conveyance of the clamp 8 (the length direction of the clamp conveyance chain 6). Each of the brackets 10 has upper and lower bearings 11 fixed to the ends of parallel upper and lower arms 10a, respectively. The pair of pins 9 are rotatably and vertically supported by upper and lower bearings 11 of each of the pair of brackets 10 and connect adjacent links of the clamp transport chain 6 to each other between the upper and lower arms 10a. . Thereby, each clamp 8 is connected to the clamp transport chain 6 so as to be rotatable relative to the pair of pins 9 as a fulcrum, and the pair of pins 9 of each clamp 8 holds a constant distance L from each other.
[0014]
The head of each pin 9 protrudes from the upper bearing 11, and a ready-made grease cap 12 having a built-in valve is attached to the head. Lubricating oil is supplied from the grease cap 12 to the hollow portion of the pin 9. It can be injected (supplied).
[0015]
The clamp transport chain 6 is slidably guided in a chain guide 13 having a C-shaped cross section. On one side wall of the chain guide 13, a slit 13 a for inserting the upper and lower arms 10 a of the bracket 10 into and out of the bracket 10 is formed over the entire length. A pair of long holes 14 are formed in the upper wall of the chain guide 13 at the lubricating oil injection station.
[0016]
Next, the structure of the automatic lubricating oil injection device A will be described.
A rail 15 is horizontally installed above the chain guide 13 in parallel with the chain guide 13, and a movable table 16 is slidably mounted on the rail 15. The movable table 16 is normally held at a home position (a stroke end on the left side in FIG. 3) on the rail 15 by a spring 17.
[0017]
The movable base 16 has a rectangular frame shape formed by a lower frame 16a, an upper frame 16b, and side frames 16c on both sides, and a groove of a guide 18 fixed to the back surface of the lower frame 16a is slidably fitted to the rail 15. Let me do it. At the center on the upper frame 16b, a pneumatic cylinder 19 is attached downward as an actuator for elevating. A nozzle lift 21 is connected to the tip (lower end) of a piston rod 20 of the pneumatic cylinder 19, and the nozzle lift 21 moves up and down within the frame of the movable base 16 by the expansion and contraction of the piston rod 20.
[0018]
A pair of injection nozzles 22 are vertically provided on the nozzle elevating table 21 at the same interval L as the pair of pins 9, and a pair of telescopic rods 23 are vertically provided between the injection nozzles 22. I have. One plate-like connecting member 24 is horizontally fixed to the lower ends of these telescopic rods 23. The connecting member 24 is located right above the chain guide 13, and when lowered to a position where it comes into contact with the upper surface of the chain guide 13 as described later, the connecting member 24 and the projection 25 on the back surface of the fixed fastening plate 8 a of the traveling clamp 8 are in contact with each other. It can be engaged.
[0019]
The pair of injection nozzles 22 slidably penetrate a pair of guide sleeves 26 implanted in the lower frame 16a of the movable base 16 and a pair of guide rings 27 implanted in the connecting member 24, respectively. The telescopic rod 23 slidably penetrates a pair of guide sleeves 28 implanted in the lower frame 16 a of the movable base 16.
[0020]
The pair of injection nozzles 22 are connected to an oil supply pump (not shown) via an oil supply hose 29, so that lubricating oil is simultaneously pressure-fed from the oil supply pump.
[0021]
Next, the operation will be described.
Normally, as shown in FIGS. 3 and 4, the moving table 16 is held at the home position by the spring 17, the nozzle elevating table 21 is raised to the upper position by the pneumatic cylinder 19, and the pair of injection nozzles 22 The retracting position above the long hole 14 of the chain guide 13 and the connecting member 24 are also lifted to the upper retracting position not engaging with the projection 25 of the clamp 8.
[0022]
In an electric system (not shown), when a switch for automatic refueling provided on the operation panel is turned on, an alarm is issued by an alarm lamp and an alarm buzzer. When a certain clamp 8 is detected by the sensor, the pneumatic cylinder 19 is operated, and the elongation of the piston rod 20 lowers the nozzle elevating table 21 as shown in FIGS. When the member 24 is lowered to a position where it comes into contact with the upper surface of the chain guide 13 as shown in FIGS. 7 and 8, that is, when the member 24 is lowered to a coupling position where it engages with the projection 25 of the clamp 8, the clamp 8 The movable table 16 is connected to the movable table 16 by the connecting member 24, and the movable table 16 is pushed by the clamp 8 immediately before stopping and slides along the rail 15 in an interlocked manner. When the clamp 8 stops, the movable table 16 also stops. I do. Thus, the pair of injection nozzles 22 are located directly above the pair of pins 9 of the clamp 8.
[0023]
When the piston rod 20 of the pneumatic cylinder 19 further extends, the nozzle elevating table 21 further descends, but the connecting member 24 is maintained at a position in contact with the upper surface of the chain guide 13 by the action of the telescopic rod 23. On the other hand, as shown in FIGS. 7 and 8, the pair of injection nozzles 22 further descends as the nozzle lift 21 descends, and the grease of the pair of pins 9 of the clamp 8 passes through the pair of long holes 14 of the chain guide 13. The cap 12 is reached and pressed against it to open its valve. Thereby, the pair of injection nozzles 22 are joined to the pair of pins 9.
[0024]
When the sensor detects that the pair of injection nozzles 22 are in such a state, the lubricating oil from the oil supply pump is automatically injected (supplied) to the pair of pins 9.
[0025]
When the lubrication of the pair of pins 9 of the clamp 8 of the first frame is completed in this way, the pneumatic cylinder 19 returns and the nozzle lift 21 is lifted and returned, and the movable base 16 also returns to the home position. I do.
[0026]
Thereafter, the frame is fed, and the same operation as described above is performed for the clamp 8 of the next frame, and this is repeated one frame at a time. When refueling is completed for all the pieces, the alarm lamp is turned off, and the normal operation of the wireless binding machine becomes possible.
[0027]
In the above-described embodiment, the raising and lowering of the pair of injection nozzles 22 and the raising and lowering of the connecting member 24 are performed by the same pneumatic cylinder 19. However, as shown in FIG. The operation may be separately performed by two pneumatic cylinders 30 mounted on the frame 16a. Further, a motor may be used in place of the pneumatic cylinders 19 and 30, and the screw shaft may be rotated by the motor to move up and down.
[0028]
【The invention's effect】
According to the present invention described above, a moving table mounted with a pair of injection nozzles, in conjunction with the clamp to move in conjunction with the clamp in the coupling member, after stopping with the clamp, a pair of injection nozzles The lubricating oil is injected into these pins by lowering it from the retracted position to the heads of a pair of pins, so even if the stop position of the clamp is not accurately determined, the lubricating oil is automatically injected into the pair of pins for each clamp can do.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view of a wireless binding machine.
FIG. 2 is a plan view of the wireless binding device, showing a state of a book at each station.
FIG. 3 is a vertical front view of the automatic lubricating oil injection device according to the present invention in a normal state.
FIG. 4 is a vertical sectional side view of the same.
FIG. 5 is a longitudinal sectional front view showing a state during operation.
FIG. 6 is a vertical sectional side view of the same.
FIG. 7 is a longitudinal sectional front view showing a state when lubricating oil is being injected into a pair of pins.
FIG. 8 is a vertical sectional side view of the same.
FIG. 9 is a vertical sectional front view of another example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Motor 2 Rotation transmission mechanism 3 Transmission 4/5 Bevel gear 6 Clamp conveyance chain 7 Sprocket wheel 8 Clamp 8a Fixed fastening plate 8b Movable fastening plate 9 Pin 10 Bracket 10a Arm 11 Bearing 12 Grease cap 13 Chain guide 13a Slit 14 Slot 15 Rail 16 Moving table 16a Lower frame 16b Upper frame 16c Side frame 17 Spring 18 Guide 19 Pneumatic cylinder 20 Piston rod 21 Nozzle elevating table 22 Injection nozzle 23 Telescopic rod 24 Connecting member 25 Projection 26 Guide sleeve 27 Guide ring 28 Guide sleeve 29 Lubrication Hose 30 pneumatic cylinder

Claims (2)

In a bookbinding system in which a book is sandwiched by each clamp for each book and a plurality of clamps are circulated and transported by a clamp transport chain to bind a book, lubricating oil is applied to a pair of pins connecting each clamp and the clamp transport chain. Automatic lubricating oil injection device,
A moving table movable in the moving direction of the clamp,
A nozzle lift table mounted on the movable table so as to be raised and lowered by an actuator, and supporting a pair of injection nozzles corresponding to the pair of pins,
A connecting member that is supported by the nozzle elevating table via a telescopic rod and is connected to the clamp so as to be interlocked with the clamp and a retracted position for releasing the connection is provided with a connecting member that can be switched by an actuator. ,
After the connecting member is moved to the connecting position by the lowering of the nozzle elevating table and stopped, and then the nozzle elevating table further descends, the pair of nozzles descends to the heads of the pair of pins and lubricating oil is injected into the pair of pins. An automatic lubricating oil injection device characterized in that: 2. The automatic lubricating oil as claimed in claim 1, wherein the movable table is slidably mounted on a rail parallel to a chain guide for guiding the clamp transport chain, and is normally held at a home position by a spring. Infusion device.

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