JPH08268603A - Loading device of film roll for bag forming - Google Patents

Abstract

PURPOSE: To make operation safe by preventing a film roll for bag forming from falling onto operator's feet by lifting and supporting the film roll by cylinders after inserting spindles of loading arms into a hollow shaft by making handles close to each other. CONSTITUTION: A bag forming film roll(r) is carried to the loading position of a packing machine, then a push-button valve on an operation-panel is pushed by an operator in order to lower handles 13 and loading arms 10. At the same time, another push-button valve is pushed in order to release a second cylinder 18 from its locking state, then the hollow shaft of the bag forming film roll(r) and spindles 12 are adjusted in their positions so as to coincide with each other, so that the spindles 12 of the loading arms 10 are inserted into the hollow shaft by bringing the handle 13 close to each other. Further, another push-button valve is pushed in order to prevent the loading arms 10 from unexpectedly retreating by operating a second cylinder 18 of a distance-controlling mechanism 9 so as to lock the arms 10. Then, further another push-button valve is pushed in order to lift up the film roll(r) using the first cylinder 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film roll loading device for bag making of a packaging machine.

[0002]

2. Description of the Related Art The conventional loading of a film roll for bag making is
This has been done by lifting the roll with a hoist or the like and suspending the shaft of the roll between the loading parts of a pair of loading arms fixed to the frame of the packaging machine.

[0003]

However, in the loading method of lifting with a hoist as described above, the bag-making film roll in which a long bag-making film is wound in a roll shape is heavy, so the work becomes heavy labor. It was dangerous.

Therefore, an object of the present invention is to install the loading arm by aligning the loading arm with the axial center of the bag-making film roll by the operator's operation of the handle, and then raising the film roll to a predetermined position by the cylinder. It is intended to provide a device excellent in operability and safety that is supported by freely rotating.

[0005]

In order to achieve the above-mentioned object, a bag-making film roll loading apparatus according to a first aspect of the present invention has a lever to which a first cylinder is connected and which is swingably supported. An interval adjusting mechanism for adjusting the interval between the pair of loading arms is attached, and the loading arms are provided so as to approach each other by the operation of the second cylinder attached to the spacing adjusting mechanism. The spindles are opposed to each other at the tips of the loading arms. It is rotatably supported and a pair of handles are erected.The handles are pushed down to align the hollow shaft and the spindle of the film roll for bag making, and the handles are moved closer to each other to insert the spindle into the hollow shaft. It is characterized in that it is configured so that the bag-making film roll is raised to a predetermined position by the first cylinder and is rotatably supported.

In order to achieve the same object, a bag-making film roll loading device according to a second aspect of the present invention is connected to a first cylinder having a cam mechanism for locking the forward direction and freeing the backward direction. The lever is swingably supported, and a distance adjusting mechanism for adjusting the distance between the pair of loading arms is attached to the lever. The distance adjusting mechanism is provided with a cam mechanism for locking the backward direction and freeing the forward direction. The loading arms are provided so as to approach each other by the operation of the second cylinder, and at the tip of the loading arm, the spindles are opposed to each other to rotatably support and a pair of handles are erected.
The handle is pushed down to align the hollow shaft and the spindle of the bag-making film roll with each other, the handle is moved closer to the spindle and the spindle is inserted into the hollow shaft, and the bag-making film roll is raised to a predetermined position by the first cylinder. It is characterized in that it is configured so as to be freely rotated.

[0007]

The operation of the bag-making film roll loading device thus configured will be described. First, after carrying the bag-making film roll to the loading position of the packaging machine, the operator lowers the handle to lower the loading arm, and the hollow shaft and the spindle of the bag-making film roll are aligned with each other. Then, the handles are brought closer to each other and the spindle of the loading arm is inserted into the hollow shaft. At this time, in the apparatus according to the second aspect, the second cylinder of the gap adjusting mechanism is locked by the cam mechanism so that the loading arm does not retract regardless of the presence or absence of the air source, so that the bag making film roll is disengaged from the spindle. There is no fear. After the film roll for bag making is mounted on the loading arm by the above operation, the film roll is raised to a predetermined position by the first cylinder and rotatably supported. At this time, in the apparatus of claim 2, regardless of the presence or absence of the air source, the loading arm is prevented from being inadvertently lowered by the load of the film roll,
The first cylinder is locked by the cam mechanism. As a result, even if the worker inadvertently cuts off the air source while loading the film, there is no risk that the bag-making film roll will fall to the feet, so that the worker can safely perform the work. Since the device of the present invention is configured so that each mechanism of the device follows the work order of the worker, the operability is very good, and the loading work of the bag-making film roll is performed safely. be able to.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view of a bag-making film roll loading device, FIG. 2 is a plan view thereof, FIG. 3 is a cutaway sectional view of the same portion, and FIG.
Is a perspective view showing a state of being installed in a packaging machine, and FIG. 5 is a pneumatic circuit diagram.

As shown in the drawing, the bag-making film roll loading device A is installed in the bag-making part of the packaging machine p by inserting and fixing the pivot 1 between the frames f. Axis 1
Attach bearings 2 and 2 that can rotate to both ends of
The lever 3 facing upward is attached to one of them, and the plate 4 is attached to the other. The lever 3 and the plate 4 are integrally formed by a horizontal rod 5, and a guide 6 having a substantially rectangular cross section parallel to the pivot 1 is fixed to the front surface of the horizontal rod 5. To the lever 3, a rod 8 side of a first cylinder (for example, an air cylinder with an eccentric cam lock mechanism of CKD Co., Ltd.) 7 having a cam mechanism for locking the forward direction and freeing the backward direction is connected. The head side is attached to the frame f. The first cylinder 7 can also be a normal air cylinder. Reference numeral 3a is a tension spring for adjusting the balance with the loading arms 10 and 10, which will be described later. One end of the tension spring is hooked on the lever 3 and the other end is hooked on the frame f.

Numerals 10 and 10 are a pair of loading arms provided with sliders 11 and 11 which are fitted into the guide 6 and slide. The tips of the loading arms 10 and 10 are provided with a bag-making film roll r. The spindles 12, 12 to be fitted into the hollow shaft s of the above are opposed to each other and are rotatably supported.
Further, a pair of handles 13, 13 are provided upright on the upper surfaces of the tips of the loading arms 10, 10. A base 14 is loosely fitted at a substantially central position of the pivot shaft 1 and is fixed to the horizontal rod 5 by being tightened with a bolt 15. On a vertical axis 16 protruding from the upper surface of the base 14, a three-pronged arm 17 is rotatably provided, and a first protruding piece 17a of the arm 17 locks the backward direction and allows the forward direction to move freely. Second with
The rod 19 side of the cylinder 18 is connected, and the head side thereof is attached to the protruding portion 14 a of the base 14. Similarly to the above, the second cylinder 18 may be an ordinary air cylinder. The second projecting piece 17b and one loading arm 10 are connected by a tie rod 20, and the third projecting piece 17c and a rear piece 10a of the other loading arm 10 are connected by a tie rod 21. The guide 6, the slider 11, and the arm 1 described above
7, the tie rods 20 and 21, the second cylinder 18, and the like constitute a gap adjusting mechanism 9 that adjusts the gap between the loading arms 10.

As shown in FIG. 1, reference numeral 25 denotes an adjusting mechanism for aligning the position of the bag-making film roll r with respect to the packaging machine p, and a lever 26 provided on the frame f so as to freely swing.
One end and the base 14 are connected by a tie rod 27, and a screw rod 29 having a knob 28 attached to the other end is screwed.

FIG. 5 shows a pneumatic circuit diagram of the bag-making film roll loading device A, in which 30 is a push button valve for releasing the lock mechanism of the first cylinder 7, and 31 is a lock mechanism of the second cylinder 18. Push button valve for releasing, 3
Reference numeral 2 denotes a push button valve for operating the loading arms 10 and 10 to perform a clamping action after mounting the bag-making film roll r, and 33 denotes a push button valve for raising the loading arms 10 and 10. 34 is a pilot valve operated by push button valves 30 and 33, and 35 is a push button valve 3
Pilot valve operated by 1, 32, 36, 3
Reference numeral 7 is a throttle valve, 38 is an air source, and 39 and 40 are pipes connecting the respective actuators.

The operation of the bag-making film roll loading device A having such a configuration will now be described. After the bag making film roll r is carried into the loading position of the packaging machine p, the operator pushes the push button valve 3 on the operation panel (not shown).
After pressing 0, the handle 13 is lowered to lower the loading arm 10. Press push button valve 31 locks shaped second cylinder 18
The state is released, and the hollow shaft s of the bag-making film roll r and the spindle 12 are aligned with each other. Then, the handles 13 are moved closer to each other to make the spindle 1 of the loading arm 10
2 is inserted into the hollow shaft s. Here, the push button valve 32 is pushed. As a result, the loading arm 10 is locked by the operation of the second cylinder 18 of the interval adjusting mechanism 9 so that the loading arm 10 does not retract carelessly. Next, when the push button valve 33 is pushed, the film roll r is raised to a predetermined position by the first cylinder 7. At this time, in order to prevent the loading arm 10 from being lowered carelessly, the first
The operation of the cylinder 7 brings the lock state. According to the above operation procedure, the bag-making film roll is loaded.

[0014]

EFFECT OF THE INVENTION The present invention has the above-mentioned structure and operation, and of course, it can be applied to various sizes of film rolls for bag making, and each mechanism of the apparatus can be adjusted according to the work order of the operator. Since it is configured to follow, it has excellent operability and has an advantage that the film roll can be safely loaded.

[Brief description of drawings]

FIG. 1 is a perspective view of a bag-rolling film roll loading device.

FIG. 2 is a plan view of the same.

FIG. 3 is a cutaway sectional view of the same portion.

FIG. 4 is a perspective view showing a state where the packaging machine is installed.

[Figure 5] Pneumatic circuit diagram

[Explanation of symbols]

A → loading device f → frame p → packing machine r → film roll for bag making s → hollow shaft 1 → pivot shaft 2 → bearing 3 → lever 3a → tension spring
4-> plate 5-> horizontal rod 6-> guide 7-> first cylinder 8-> rod 9-> spacing adjustment mechanism 10-> loading arm 10a-> rear piece 11-> slider
12 → spindle 13 → handle 14 → base 14a → projection 15
→ Bolt 16 → Vertical axis 17 → Arm 17a → First protrusion 17b
→ Second protrusion 17c → Third protrusion 18 → Second cylinder 19 → Rod 20, 21 → Tie rod 25 → Adjustment mechanism 26 → Lever 27 → Tie rod 28 → Knob 29 → Screw rod 30, 31, 32, 33 → Push button Valve 34, 35 → Pilot valve 36, 37 → Throttle valve 38 → Air source 39, 40 → Piping

Claims (2)

[Claims] 1. A lever connected to a first cylinder is swingably supported, and an interval adjusting mechanism for adjusting an interval between a pair of loading arms is attached to the lever, and a second cylinder attached to the interval adjusting mechanism. The loading arms are provided so as to approach each other by the operation, and at the tip of the loading arms, the spindles are opposed to each other and rotatably supported, and a pair of handles are erected, and the handles are pushed down to form a bag-making film. The hollow shaft and the spindle of the roll are aligned with each other, the handle is brought close to the spindle, and the spindle is inserted into the hollow shaft, and the bag-making film roll is raised to a predetermined position by the first cylinder and rotatably supported. A device for loading a film roll for bag making, which is characterized in that 2. An interval for swingably supporting a lever to which a first cylinder having a cam mechanism for locking the forward direction and freeing the backward direction is connected, and adjusting the interval between the pair of loading arms on the lever. An adjusting mechanism is attached to the gap adjusting mechanism so that the loading arms can approach each other by the operation of a second cylinder equipped with a cam mechanism that locks the backward direction and allows the forward direction to be free, and the tip of the loading arm. The spindles are opposed to each other and are rotatably supported, and a pair of handles are erected upright.The handles are pushed down to align the hollow shaft of the bag-making film roll with the spindle, and bring the handles closer to each other. A bag-making machine characterized in that a spindle is inserted into a hollow shaft, and a bag-making film roll is raised to a predetermined position by a first cylinder and rotatably supported. Film roll loading device.