JPS58163816A - Work roll supporting adjuster - Google Patents

Abstract

PURPOSE:To provide a unit capable of always carrying out a fine adjustment accurately and smoothly without using an eccentric gear and a pinion for supporting a bottom roll. CONSTITUTION:A bearing box 7 for a bearing on the axial end of a work roll 1 is guided vertically and movably along a frame 4 and a driven member 9 of a swash plate cam is integrated with on the bottom surface of said bearing box 7. A prime driving member 10 of the swash plate cam engaged with said driven member 9 is guided horizontally and sidably along the frame 4 and a driving device which allows the prime driving member 10 to slide horizontally is mounted on the frame 4.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a bottom processing roll support adjustment device for a rotary processing machine for processing sheet materials such as paperboard, corrugated paper, plastic sheets, and metal laminate sheets.

Conventionally, the bottom roll of a rotary sheet processing machine such as a rotary die cutter is supported by a bearing fixed to a swing arm, and an eccentric gear is rotatably fitted on the outer periphery of the bearing, and the eccentric gear is supported by a pinion. , whose binion was attached to one end of the twin link. The height of the bottom roll was adjusted by driving a binion through a gear train and turning an eccentric gear to raise and lower the swing arm. Also, when not in use, a fluid cylinder was applied to fold the paired links and lower the bottom roll all at once.

In this way, conventional devices move the bottom roll up and down via many gears, which has a large effect of backlash, and it is not possible to accurately display the height of the bottom roll depending on the rotation angle of the driving gear. Ta. Additionally, the pinions, eccentric gears, and bearing wheels are subject to a large load from the bottom roll during machining, so they are easily damaged and maintenance is time-consuming.

The object of the present invention is to provide a device that overcomes the above-mentioned drawbacks, and in order to achieve this object, the device of the present invention includes a bottom roll bearing case that is attached to the machine frame so that it can be raised and lowered, and a bottom roll bearing case that is attached to the bottom of the case. A fixed driven body of the nine swash plate cams, a driving body of the swash plate cam that is horizontally slidable on the machine frame, and a driving device for the driving body. When the bottom roll is moved, the bottom roll moves up and down via the swash plate cam mechanism. Since there is no play in the swash plate cam mechanism, it is possible to uniquely display the height of the bottom roll based on the amount of movement of the driving body.

The apparatus of the present invention will be explained based on embodiments shown in the drawings. As shown in FIGS. 1 and 2, a bearing portion 3 is carved into the stepped shaft end portion 2 of the bottom roll 1 of the rotary die cutter,
A roll bearing 5 is fitted into the bearing portion. The roll bearing 5 is fitted into a bearing box having a rectangular outer shape, and the driven body 9 of the swash plate cam is fixed to the bottom surface of the bearing box. A driving body 10 of a swash plate cam that engages with a driven body 9 is mounted on a sliding shaft horizontally to the machine frame 4. A cradle 1 unit for guiding the bottom surface of the prime mover No. is fixed to the machine frame 4, and a guide plate 12 is attached to the pedestal to guide the front surface of the tip of the prime mover 10. Guide claws 13, 13 extending on both sides of the case are fixed to the machine frame 4, and the bearing box 7 is moved only in the vertical direction. ,i.

A screw hole is drilled horizontally through the protrusion of the driving body 10, and a bolt 15 is screwed into the screw hole.

The bolt 15 is directly connected to the output shaft of a motor 16 with a reduction gear attached to the machine frame 4. When the motor 16 is rotated, the driving body 10 moves forward or backward on the upper surface of the pedestal 11 between the machine frame 4 and the guide plate 12 depending on the direction of rotation, and the driving body 10 moves forward or backward on the upper surface of the pedestal 11 between the machine frame 4 and the guide plate 12, and the driving body 10 moves forward or backward on the upper surface of the pedestal 11 between the machine frame 4 and the guide plate 12, and the driving body 10 moves forward or backward on the upper surface of the pedestal 11 between the machine frame 4 and the guide plate 12. The driving body 10 that vertically moves the box machine up and down
Since the angle of inclination of the slope with which the driven body 9 engages is approximately 8/U,000, the elevation of the bearing box, that is, the height of the bottom roll l, can be finely adjusted.

As shown in Figures 3 and 4, a panel 2 that displays the height of the bottom roll is fixed on the surface of a part 20 of the machine frame 4, and a lever 22 fixed to the prime mover is installed inside the panel. When the motor 16 (FIG. 2) is stopped by turning off the limit switch 23 using the lever, the height of the bottom roll can be easily set. The two poles 24 and 25 are rotatably supported on the panel 21, and the gears 26.2'/ fixed to each bolt are engaged with the bolt 2.
5 is expanded to twice that of bolt 24.

A pointer 28 that moves along the scale plate 19 is threadedly engaged with the bolt 25, a cradle switch 9 is threadedly engaged with the bolt 24, and a limit switch 2 for stopping the motor is mounted on the cradle.
Fix 3. When the knob 30 is turned to adjust the pointer 28 to a predetermined bottom roll height on the scale plate 19, the cradle 29 also moves to the corresponding position of the driving body 10 (FIG. 2) along with the limit 23. When the bottom roll is at the lower limit, the lever 22 is activated by the lower limit switch 31.
corresponds to Micro switch 3 for W report on cradle 29
2, so that an alarm is issued when the motor does not stop even if the lever 22 touches the limit switch 23.

Next, the operation of the apparatus of the present invention will be explained.

First, turn the knob 30 to align the pointer 28 with the set position scale on the scale W19. Next, when the motor 16 is started, the bolt 15 engages the rotary screw engagement mechanism and moves the moving body 10 forward. As the driving body 10 moves forward, the bearing box 7 integrated with the driven body 9 rises through engagement with the swash plate cam, raising the bottom roll height.

The lever 22 integrated with the prime mover IO also moves forward and hits the limit switch 23 located at the position corresponding to the pointer 28 to open the switch.As a result, the forward movement of the prime mover IC+ and the rise of the bearing box 7 together with the motor 16 are stopped. The bottom roll l is set at a predetermined height. Since the pointer 28 magnifies and displays the vertical distance of the bottom roll 1 by about 200 times, the set position of the bottom roll 1 can be finely adjusted very easily. When stopping, the reverse rotation switch of the motor 16 is turned on, the driving body 10 is moved backward, and the bearing box 7 is lowered, but when the bottom roll 1 is lowered to the lower limit, the lever 22 hits the lower limit switch 31 and the motor 16 is stopped.

As mentioned above, the device of the present invention differs from conventional devices in that it does not involve an eccentric gear or a binion to support the bottom roll, so fine adjustment of the bottom roll position may become unsmooth or inaccurate due to gear backlash. It never becomes too accurate, and you can always make precise and smooth fine adjustments. Since there are no eccentric gears or pinions in the device of the present invention, there is no risk of them being damaged and there is no need for maintenance. Furthermore, in order to prevent deviations when resetting due to backlash, conventional devices leave the eccentric gear as it is during rest and break the link with the cylinder to lower the bottom roll, but the device of the present invention allows for resetting. Since this is done accurately, it can also be used to lower the bottom roll when at rest. Therefore, a fluid cylinder and associated device for lowering the bottom roll during rest is not required.

[Brief explanation of drawings]

Fig. 1 is an elevational view in cross section showing the main parts of a rotary die cutter equipped with a device according to an embodiment of the present invention, Fig. 2 is a side view of the same, and Fig. 3 is an enlarged view of the panel in Fig. 1. A side view shown,
FIG. 4 is also a front view. 1: Bottom roll 4: Machine frame 7: Bearing box 9: Driven body 1O: Driving body 15: Boreto 16: Motor with reducer 21: Panel 22 lever
23: Limit switch 25:)yx) 26・
2Gear°°: Guideline 1 Grudge - Cradle Applicant Masaharu Matsuo' Agent Hajime Kawakami - Figure 1 Figure 2 to 11 '5

Claims (1)

[Scope of Claims] 1) A bearing box of a shaft end bearing of a processing roll is guided to the machine frame so that it can be vertically raised and lowered, and a driven body of a swash plate cam is integrally provided on the bottom surface of the bearing box, and a driven body of a swash plate cam and A processing roll support adjustment device characterized by being provided with a driving device that guides a driving body of an engaged swash plate cam so as to be horizontally slidable on the machine frame, and that horizontally slides the driving body on the machine frame. . 2) *Claim 1 characterized in that a screw hole is drilled horizontally through the moving body, a bolt that is threadedly engaged is passed through the screw hole, and the bolt is connected to the output shaft of a motor with a speed reducer. Processing roll support P1 adjustment device described in section 1. 3) A panel is provided on the machine, a lever fixed to the driving body is movably drawn into the panel, and a limit switch and a pointer for cutting off the power supply circuit of the motor with reducer can be adjusted to the position v# along the scale on the panel. 3. The work roll support adjustment device according to claim 2, wherein said limit switch is actuated by said lever. 4) Bear two bolts on the panel along the scale, screw-fit a pointer to one of the bolts and a cradle integrated with a limit switch to the other, connect the two bolts through the gear to the bolt on the pointer side. The rolling roll support vI111P device according to claim 3, characterized in that the rotational speed of the vI111P is linked in an expandable manner.