JPH0744968Y2 - Base paper hanging machine - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a base paper hanging machine used for corrugated board production and the like.

[Prior art]

The present applicant has already provided a base paper machine for a base paper for corrugated board production as disclosed in Japanese Utility Model Laid-Open No. 63-173146. In this base paper machine, the bases of the pair of left and right arms are movably mounted in the axial direction on a rotary shaft horizontally supported between the left and right machine frames, and the pair of left and right arms are
The left and right core chucks are provided to fit and hold the core of the roll-shaped raw paper from both left and right ends by sliding the left and right arms close to each other along the rotation axis.

[Problems to be solved by the device]

The center of the base paper in the width direction (the center position in the axial direction of the core) hung on the base paper hanging machine is determined by the positions of the left and right arms and the fitting and sandwiching positions by the left and right core chucks provided therein. If the center of this base paper shifts,
When making a corrugated board by stacking multiple sheets of base paper, the so-called edge of the side edge is often wasted.Therefore, when the base paper is fitted and sandwiched by the left and right core chucks, it is important to accurately determine the center position of the base paper. That's right. However, in this type of base paper hanging machine, the left and right arms move respectively, and the left and right core chucks fit into the cores of the base paper, so in order to know the center of the base paper, this must be taken into consideration. I won't. Therefore, in view of such a point in the base paper hanging machine, an object of the present invention is to easily determine the positions of the left and right arms and the fitting and pinching positions by the left and right core chucks provided on the arms in order to know the center of the applied base paper. It is to be able to measure with high precision by the mechanism.

[Means for Solving the Problems]

In order to achieve such an object, the present invention provides a left and right machine frame.
A base of a pair of left and right arms 20 is movably mounted in an axial direction on a rotary shaft 19 that is horizontally supported between 18 and the left and right arms 20 are attached to the pair of left and right arms 20 along the rotary shaft 19. The following configuration is added to the base paper hooking machine provided with the left and right core chucks 23 for fitting and sandwiching the core 25 of the roll-shaped base paper 24 from both the left and right sides of the roll-shaped base paper 24 by sliding them closer together. The left and right moving distance measuring devices 1 are installed at predetermined positions on the left and right sides of the rotating shaft 19. A wire winding body 6 that winds the wire 10 around each moving distance measuring device 1, and a spring winding that winds a spiral spring 9 having a tip connected to the wire winding body 6 to give a winding rotation force to the wire winding body 6. The body 4 and the wire 10 drawn out from the wire winding body 6 are guided, and the pulley 13 rotated by pulling and winding the wire 10 and the encoder 11 outputting an electric signal according to the number of rotations of the pulley 13 With. Wire pulled out from the moving distance measuring device 1 on the left side
The wire 10 is slidably inserted into a flexible guide pipe 29 so that the tip of the wire 10 is connected to the left arm 20 and the wire 10 pulled out from the right moving distance measuring device 1 is also similarly guided. The tip of the wire 10 is connected to the right arm 20 by slidably inserting it into a pipe 23. Furthermore, it is advisable to add the following configuration. The left and right detection cylinders 26 are horizontally attached to the left and right arms 20, respectively. At the tip of the piston rod 27 of each detection cylinder 26,
A pad (28) for contacting the end face of the base paper (24) is provided. The tips of the wires 10 from the left and right moving distance measuring devices 1 are connected to the pads 28 of the left and right detection cylinders 26, respectively.

[Action]

When the left and right arms move closer to each other to clamp the base paper, the wire is pulled out of the wire winding body against the spiral springs in the left and right movement distance measuring devices, and the pulley is rotated in the normal direction as the wire is pulled out. The number of electric signals corresponding to the normal rotation number is obtained. Therefore, by counting the electric signals, the moving distances of the left and right arms until the base paper is nipped can be electrically measured on the left and right sides, and the center of the base paper can be known from the measured distances on the left and right. Conversely, when the left and right arms move away from each other, at the same time, the wire is automatically wound around the wire winding body by the action of the spiral spring, the pulley reverses, and the encoder responds to the number of reverse rotations. The signal is output. The wire is guided through a flexible guide pipe both when it is pulled out and when it is wound up. Also, after sandwiching the base paper and stopping the left and right arms, the left and right detection cylinders attached to these left and right arms are operated to extend the piston rods, and the pads at the tips of the left and right piston rods are used as base paper. The left and right wires are pulled out by the amount of extension of the piston rod when they are applied to the left and right end surfaces, and the electrical signals of the encoder at that time are counted to fit the left and right core chucks fitted to the core of the base paper. The depth can be measured. Therefore, by correcting the moving distance of the left and right arms measured as described above for the fitting depth of the left and right core chucks, the position of the center of the base paper can be known more accurately.

【Example】

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. First, the moving distance measuring device used in the base paper hanging machine according to the present invention will be described. FIG. 1 is a front view thereof and FIG. 2 is a plan view thereof. This moving distance measuring device 1 is composed of a frame 2
It has a single-piece structure in which all the constituent parts are attached to the frame 2, and the mounting portions 3 at both ends of the frame 2 are mounted at appropriate places by, for example, screwing and used. A drum-shaped plastic spring winding body 4 is rotatably supported by a shaft 5 at an intermediate portion of the frame 2.
A drum-shaped plastic wire winding body 6 is also rotatably supported by a shaft 7 on one side of the spring winding body 4, and the spring winding body 4 and the wire winding body 6 are adjacent and parallel to each other. Lined up. The wire winding body 6 has a spring winding portion 6a and a wire winding portion (bobbin) 6b. Collars 8 are integrally provided on both sides of the wire winding portion 6b. A base end of a spiral spring 9 made of a band-shaped metal plate having a strong spring property is fixed to the spring winding body 4, and the spiral spring 9 is wound around the outer periphery of the spring winding body 4 by its restoring force. It is supposed to be taken. The tip of the spiral spring 9 is fixed to the spring winding portion 6a of the wire winding body 6, and the spiral spring 9 biases the wire winding body 6 counterclockwise in FIG. Wire winding body 6
The base end of one wire 10 made of metal, fiber, plastic or the like is fixed to the wire winding portion 6b. A known rotary encoder 11 is provided on the other side of the frame 1.
Is attached. The shaft 12 of the rotary encoder 11 penetrates the frame 1 and is parallel to the shaft 5 of the spring winding body 4 and the shaft 7 of the wire winding body 6. This axis 12
A pulley 13 for guiding the wire 10 is fixed to the tip of the. Collars 14 are integrally provided on both sides of the pulley 13. The wire 10 changes its direction into a U shape by passing through the outer circumference of the pulley 13 and is drawn out, and is connected to the moving body 15 to be measured. Reference numeral 16 is an electric wiring cord connected to the rotary encoder 11. Therefore, in FIG. 1, when the moving body 15 moves forward, that is, moves in the direction of the arrow A for pulling the wire 10, the wire 10 resists the spring force of the spiral spring 9 and the wire winding body 6
It is pulled out from this while rotating in the clockwise direction. As a result, the pulley 13 is rotated in the clockwise direction, and the rotary encoder 11 outputs an electric signal (pulse) corresponding to its normal rotation number. At this time, the spiral spring 9 is pulled out from the spring winding body 4, the pulled-out portion is wound around the spring winding portion 6a of the wire winding body 6, and the wire winding body 6 is rotated counterclockwise. Power is accumulated. On the other hand, when the moving body 15 returns, that is, moves in the direction of the arrow B opposite to the above, the wire winding body 6 is rotated counterclockwise by the spiral spring 9 along with the movement, and the wire 10 is moved.
, The pulley 13 is rotated counterclockwise, and the rotary encoder 11 outputs an electric signal according to the number of reverse rotations. At this time, the spiral spring 9 rotates the wire winding body 6 in the counterclockwise direction, automatically unwinds the portion wound around the spring winding portion 6a, and at the same time, winds it around the spring winding body 4. To be Therefore, by electrically counting the electric signal from the rotary encoder 11 in each of the forward rotation and the reverse rotation, the moving distance of the moving body 15 in each of the forward movement and the backward movement can be measured. FIG. 3 shows a cardboard making machine 17 for a corrugated board making machine according to an embodiment of the present invention, which uses the moving distance measuring device 1. In the same manner as in the conventional art, the base paper hanging machine 17 is capable of sliding the slider 21, which is the base of the left and right arms 20, to the left and right on a rotary shaft 19 horizontally supported between the left and right machine frames 18. It is mounted so that it cannot rotate, and the distance between the left and right arms 20 can be adjusted by a hydraulic cylinder 22 for adjusting the left and right distances. Conical left and right core chucks 23 are horizontally rotatably supported at the tips of the left and right arms 20. These left and right core chucks 23 are fitted on the left and right ends of a cylindrical core 25 which is formed by winding a base paper 24 into a roll shape, and clamps the core 25.
Further, left and right detection cylinders 26 are horizontally attached to the left and right arms 20. These detection cylinders 26 are
The pad 28 at the tip of the piston rod 27 is extended until it hits the left and right end faces of the roll-shaped base paper 24, and the base paper 24
This is for detecting the fitting depth of the left and right core chucks 23 with respect to the core 25, and the piston rod 27 is normally in the retracted position as shown in FIG. With respect to the base paper hanging machine 17, the above-described moving distance measuring device 1 is installed at predetermined positions on the left and right sides of the rotary shaft 19, respectively. Then, on each of the left and right sides, the wire 10 is slidably inserted into the flexible guide pipe 29 passed between the arm 20 and the end, and the tip of the wire 10 is connected to the tip of the piston rod 27 of the detection cylinder 26. is there. In such a base paper hanging machine 17, when the left and right arms 20 are moved toward each other to hold the base paper 24, the wires 10 of the left and right moving distance measuring devices 1 are pulled out as the left and right arms 20 move. , Each rotary encoder 11 outputs a number of electric signals according to the amount of movement of each of the left and right arms 20. Therefore, by counting this, the moving distance of the left and right arms 20 can be measured. Move the left and right arms 20 closer to move the left and right core chucks 23
After sandwiching the core 25 of the base paper 24 with
When the piston rod 27 of 26 is extended (advanced) and stopped when the pad 28 at its tip hits the left and right end faces of the base paper 24, the core 25 is moved by the number of electric signals from the rotary encoder 11 according to the extension amount. The fitting depth of the left and right core chucks 23 can be measured. In addition, in addition to the amount of movement of the left and right arms 20 obtained as described above, the piston rod
By adding the extension amount of 27, that is, the left and right arms 20
From the start of the movement to the stop of the tips of the left and right piston rods 27, by counting the electric signals from the rotary encoder 11, the base paper held by the left and right core chucks 23 is counted.
It is possible to measure 23 axial positions, that is, the center of the base paper. On the other hand, when the left and right piston rods 27 are retracted, the wire 10 moves as described above along with the retraction.
When the left and right arms 20 are further taken up and moved away from each other, the wire 20 is taken up accordingly, and the moving distance at this time can be similarly measured.

[Effect of device]

According to the base paper hanging machine of the present invention, when the left and right arms are moved closer to each other to clamp the base paper, the left and right wires connected to the left and right arms are pulled out from the wire winding body against the spiral spring, As the pulley is rotated in the normal direction as it is pulled out, and the number of electrical signals corresponding to the number of normal rotations is obtained from the encoder.By counting this electrical signal, the movement distance of the left and right arms until the base paper is pinched can be It is possible to measure electrically, and it is possible to know the center of the base paper from the measurement distance on the left and right. Since the wire is guided through the flexible guide pipe both when it is pulled out and when it is wound up, the wire is not entangled. According to claim 2, since the fitting depth of the left and right core chucks fitted to the core of the base paper can be measured, the measured movement distance of the left and right arms is corrected by the fitting depth of the left and right core chucks. By doing so, the position of the center of the base paper can be known more accurately.

[Brief description of drawings]

FIG. 1 is a front view of an example of a moving distance measuring device used in the base paper hanging machine of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a front view of an example of a base paper hanging machine of the present invention, and FIG. FIG. 4 is an enlarged view of a part of FIG. 1 ... Moving distance measuring device, 4 ... Spring winding body, 6 ... Wire winding body, 9 ... Spiral spring, 10 ... Wire, 11 ...
… Rotary encoder, 13 …… Pulley, 17 …… Base paper hanging machine, 18 …… Machine frame, 19 …… Rotating frame, 20 …… Arm, 23 ……
Core chuck, 24 …… base paper, 25 …… core, 26 …… detection cylinder, 27 …… piston rod, 28 …… pad.

Claims (2)

[Scope of utility model registration request] 1. A base of a pair of left and right arms 20 is movably mounted in an axial direction on a rotary shaft 19 which is horizontally supported between left and right machine frames 18. In the base paper hanging machine provided with the left and right core chucks 23 for fitting and sandwiching the core 25 of the roll-shaped base paper 24 from the left and right ends of the roll-shaped base paper 24 by sliding the arm 20 toward and away from the rotary shaft 19, the rotary shaft 19 The left and right moving distance measuring devices 1 are installed at predetermined positions on the left and right sides, and a wire winding body 6 that winds the wire 10 on each moving distance measuring device 1 and a winding rotation body around the wire winding body 6. A spring winding body 4 that winds a spiral spring 9 whose tip is connected to this to give a force, and a wire 10 drawn out from the wire winding body 6 are guided and rotated by the drawing and winding. Depending on the pulley 13 and the number of rotations of this pulley 13, An encoder 11 for outputting an air signal is provided, and the wire 10 drawn out from the left distance measuring device 1 is slidably inserted into a flexible guide pipe 29 so that the tip of the wire 10 is located on the left side. While being connected to the arm 20, the wire 10 pulled out from the right distance measuring device 1 is slidably inserted into the same flexible guide pipe 23 so that the tip of the wire 10 is connected to the right arm.
A paper wrapping machine characterized by being connected to 20. 2. The left and right detection cylinders 26 on the left and right arms 20.
Are installed horizontally, and the base paper is attached to the tip of the piston rod 27 of each detection cylinder 26.
The pad 28 for contacting the end faces of 24 is provided, and the tips of the wires 10 from the left and right moving distance measuring devices 1 are connected to the pads 28 of the left and right detection cylinders 26, respectively. The base paper machine described in.