JPH05162906A - Paper tube supply device - Google Patents

Abstract

PURPOSE:To smoothly discharge a paper tube from a hopper to be surely supplied to a designated position and to prevent deformation of a paper tube at the time of its transport by combining together a hopper, a rotating conveyer, a transport table and a push-up mechanism. CONSTITUTION:A first paper tube supply device 1 is formed by a hopper 2 having a discharge port 10, a rotating conveyer 3, a transport table 4 and a push-up mechanism 5. A paper tube (a) is discharged from a discharge port 1, sent to the transport table 4 by the rotating conveyer 3, rolled on a transport path 33, stopped in a stop section 34 and transported to the next process by the push-up mechanism 5. Further, an elevating conveyer 42 and another transport table 43 are connected to the first paper tube supply device 1 to form a second paper tube supply device 41. The transported paper tube (a) is further lowered by the elevating conveyer 42 and rolled on a transport path 54 on another transport table 43 to be transported to a stop port 55.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper tube supply device for discharging a paper tube around which paper, film or the like is wound from a hopper to convey and supply it to the next step.

[0002]

2. Description of the Related Art Stretch wrapping film, wrap film, toilet paper, supermarket wrapping bag, etc., is a paper tube wrapped with a continuous body of paper, film, and perforated bags that can be separated one by one. Used in.

Conventionally, this kind of roll film or roll paper is wound into a roll on a paper tube attached to the last step of a molding machine after film molding, film bag molding and toilet paper production, and a fixed length. When the film, bag, or toilet paper is wound up, the winding machine is turned over, and they are wound up on a new paper tube to produce a roll body. The rolled paper tube was manually removed from the paper tube holding rod of the winder (usually 4 to 6 rolls) and packed in a cardboard box.

On the other hand, a paper tube is newly supplied to the empty paper tube holding rod of the winding machine manually or to the arm of the robot. Therefore, during the operation of the molding machine, the paper tube is supplied from the paper tube hopper to the winder within an appropriate time, and the robot arm is used to insert it into the paper tube holding rod of the winder. Needs to be delivered to a fixed position within a tolerance of ± 0.5 mm.

Conventionally, as a paper tube feeder of this type, a paper tube is discharged from the hopper one by one by a unidirectionally rotating drop rotor provided at the bottom of one side of the hopper, and the next step is carried out. The hopper, which is provided near the discharge port in the hopper, and which rotates in the opposite direction to the discharge direction, and the hopper.
One of the hoppers that discharges the paper tubes one by one from the hopper by feeding the paper tubes that can be set up in the vicinity of the outside discharge port and supplies them to the next process (Japanese Utility Model Laid-Open No. 64-43053). A device in which a drop path is formed at the bottom of the side, and paper tubes are discharged one by one from a hopper by free fall by a stopper provided in this drop path and supplied to the next step (Japanese Patent Laid-Open No. 60-524).
49, Japanese Utility Model Laid-Open No. 61-6195) and the like are known.

[0006]

The above-mentioned film, bag,
Manufacture of rolls of paper and aluminum foil is carried out in three shifts in a continuous production day and night, or in two shifts in the morning and evening, and the operation is interrupted at night. Since the manual work of removing the roll body from the winder and packing it in a cardboard box is a simple work and is a heavy labor, there has been a shortage of manpower these days. There is a movement to use robots to store the body and enable continuous production.

Therefore, in order to continue the roll winding unattended at night, the following is required. (1) 600 to 1200 paper tubes can be stored in the hopper at one time, and this can be intermittently supplied from the hopper at an appropriate time and within an appropriate time. (2) The paper tubes are gripped by the robot arm, In order to be inserted into the paper tube holding rod of the winder, the paper tube must be supplied to a predetermined position within an error range of ± 0.5 mm. (3) The winding roll is taken up by the robot arm. Remove it from the paper core holding rod of No. 1, place it inside the cardboard, and move it sequentially on the pallet.

When a large amount of paper tubes are stored and supplied to the hopper at a time as described above, in the paper tube feeding device provided with the drop-out rotor, the paper tubes form a bridge in the hopper. Formed, it will not fall into the outlet rotor,
Further, the paper tube bites between the drop rotor and the casing and is clogged, and the drop rotor does not rotate. The one provided with an aligning conveyor and paper tube feed (Japanese Utility Model Laid-Open No. 64-43053) has a total weight of these paper tubes when the paper tubes are stored in a hopper. In addition, there is a problem that it becomes difficult to discharge the paper tube by joining the rotary conveyor in the hopper. or,
In the case where the stopper is provided in the drop path, there are problems that the paper tube bounces at the drop point and cannot be reliably supplied to a predetermined position, and that the paper tube may be deformed when dropped.

The present invention has been made in view of the above problems of the prior art, and its object is to:
The paper tube is smoothly discharged from the hopper by preventing the paper tube from forming a bridge in the hopper, clogging the paper tube at the discharge port, and applying a large load to the paper tube near the discharge port. To provide a paper tube supply device that can be conveyed and supplied to the next step, can be reliably supplied to a predetermined position, and that does not deform the paper tube during conveyance and that satisfies the required performance of (1) above. is there.

[0010]

In order to achieve the above object, the first paper tube feeding device of the present invention can smoothly discharge the paper tube from the inside of the hopper and convey and feed it to the next step. Which can store a large number of paper tubes, has a hopper having a paper tube discharge port, a rotary conveyor which intermittently operates by fixing a plurality of paper tube conveying members at predetermined intervals, and a conveyance having an inclined surface. A paper tube supply device including a transport table having a path and a stop portion having an upper surface inclined, and a push-up mechanism in which a paper tube mounting plate is fixed to a tip of an operating shaft of an air cylinder.

The second paper tube feeding device of the present invention is a blower film forming machine, T-die film forming machine, etc. A winder such as is installed on the 1st floor so that the paper tube can be reliably fed to a predetermined position even when it is transported and supplied in the vertical direction from the 2nd floor to the 1st floor. The hopper that can store a large number of paper tubes, has a paper tube outlet, and a rotary conveyor that intermittently operates by fixing a plurality of paper tube conveying members at predetermined intervals, A transport table having a transport path with an inclined surface and a stop section with an upper surface as an inclined surface, a push-up mechanism that fixes the paper tube mounting table to the tip of the operating shaft of the air cylinder, and a plurality of chains for lifting and lowering. Intermittent operation by fixing the paper tube mounting members at a predetermined interval A lifting conveyor that is more made paper tube feeder with another carrier table having a stop which has a conveying path which was inclined surface.

[0012]

In the paper tube feeder of the first invention, one or a plurality of paper tubes stored in the hopper are simultaneously discharged from the discharge port. The ejected paper tube is accommodated in the paper tube conveying member and sent to the conveying table by the rotary conveyor. The paper tube rolls on the conveying path, contacts the stop portion, and stops on the paper tube mounting table. The paper tube is moved upward by the operation of the push-up mechanism, is moved from the paper tube mounting table to the upper surface of the stop portion at the upper position, and is conveyed and supplied to the next step.

In the paper tube feeding apparatus of the second invention, the paper tube rolls on the upper surface of the stop portion further than the carrier of the paper tube feeding apparatus of the first invention, and the paper tube placing member of the elevating conveyor. Then, it is lowered by an elevator conveyor and sent to another carrier. The paper tube rolls on the conveyance path and comes into contact with the stop portion to stop.

[0014]

EXAMPLE An example of the paper tube feeder of the present invention
A description will be given with reference to the drawings.

As shown in FIGS. 1 to 3, the first paper tube feeder 1 of the present invention comprises a hopper-2, a rotary conveyor 3, a carrier 4, and a push-up mechanism 5.

As shown in FIGS. 1 and 3, the hopper-2 comprises a mounting plate 6, side plates 7, 8 and a front plate 9. The mounting plate 6 is composed of a back surface portion 6a, a connecting portion 6b, and a bottom surface portion 6c, and each is inclined by a predetermined angle so that the paper tube a rolls toward the discharge port 10 by its own weight. In this embodiment, the back surface portion 6a is 3 ° with respect to the vertical direction, and the connecting portion 6 is
The angle b is 60 ° with respect to the horizontal direction, the bottom surface portion 6c is inclined 3 ° with respect to the horizontal direction, and the discharge port 10 side (6d) of the bottom surface portion 6c is further inclined 4-6 °. A 4 cm square hole is provided in a part of the bottom surface portion 6d so that the paper tube confirmation sensor 21 can confirm whether or not the paper tube exists.

As shown in FIG. 3, the side plates 7 and 8 are both movable in the left-right direction. The side plate 7 fixes one end of a moving shaft 11 having a feed screw portion 11a engraved on its outer surface, and makes the lower end of the side plate 7 slidable along a guide rail 12 to drive the moving shaft 11. By moving with the mechanism 13, it is possible to move a predetermined distance in the left-right direction. The side plate 8 has a wheel support plate 14 at the lower end thereof.
The wheel 15 can be rolled along the guide rail 16 and can be moved in the left-right direction by a predetermined distance by rotating the wheel 15 by the drive mechanism 17. The position of the side plate 7 can be set to a predetermined value by contacting the tip of the positioning shaft 19 with the digital scale 18 and the position of the side plate 8 can be set to a predetermined value. Therefore, the distance between the side plate 7 and the side plate 8 can be arbitrarily set within a predetermined range, and the paper tubes a of various lengths can be stored in the hopper-2.

The front plate 9 is fixed to the rear portion of the upper cover 20 of the rotary conveyor 3 described later by inclining at a predetermined angle,
In this embodiment, they are fixed at an angle of about 10 ° with respect to the vertical direction. From the lower end of the front plate 9 to the mounting plate 6 described above.
The discharge port 10 is formed up to the tip of the discharge port 10. The discharge port 10 has a height several times as large as the diameter of the paper tube a so that many paper tubes a can be discharged at the same time.

As shown in FIG. 2, a paper tube confirmation sensor -21 is arranged below the front end portion 6d of the mounting plate 6 to detect a shortage of the paper tube a in the hopper-2. It is like this.

As shown in FIGS. 1 and 2, the rotary conveyor 3 is arranged so as to be connected to the discharge port 10 of the hopper-2, and a chain 24 is spanned between the sprockets 22 and 23. A plurality of paper tube transport members 25 are arranged and fixed to the chain 24 at predetermined intervals. Also, the sprockets 22, 2
A straight line connecting the three axes is inclined at a predetermined angle, and in this embodiment, it is inclined forward by about 10 ° with respect to the vertical direction.

The paper tube conveying member 25 has a substantially U-shaped cross section,
The length is made larger than the length of the paper tube a and both the height and the depth thereof are made larger than the diameter of the paper tube a so that the paper tube a can be accommodated in the paper tube conveying member 25. The tip 5 mm of the substantially U-shaped bottom plate is bent upward so that the paper tube does not fall down.

The rotary conveyor 3 is covered with an upper cover 20, side covers 26 and 27, and the upper cover 20 is covered.
Prevents the paper tube a from coming out of the paper tube carrying member 25 during carrying.

The sprocket 22 is also connected to a sprocket 29 via a chain 28, and a Geneva mechanism 30 is connected to the sprocket 29, which is a drive motor.
The chain 24 is configured to intermittently move in the direction A of FIG. 2 by driving (not shown). In this embodiment, the sprocket 22 is made to rotate 1/4 every time the drive motor makes one rotation, so that the chain 24 is moved by the arrangement interval of the paper tube conveying member 25. I am doing it.

Further, a paper tube confirmation sensor-32 is arranged near the outlet 31 of the rotary conveyor 3 and detects whether the paper tube a exists at the outlet 31.

The transfer table 4 has a transfer path 33 having an inclined surface, and the start end of the transfer path 33 is close to the exit 31 of the rotary conveyor 3. In this embodiment, the transport path 33
Is inclined about 6 ° with respect to the horizontal direction. Therefore, the paper tube a discharged from the outlet 31 rolls on the transport path 33 by its own weight and reaches the end of the transport path 33.

A stop portion 34 projecting upward is formed at the front end of the conveying path 33. The paper tube a comes into contact with the rear surface of the stop portion 34 and stops on the paper tube mounting table 38. Stop part 3
The upper surface of No. 4 is an inclined surface, and in this embodiment, it is inclined about 6 ° with respect to the horizontal direction.

A paper tube confirmation sensor-35 is also arranged in the upper part of the conveyance path 33 to detect that the paper tube a is full on the conveyance path 33. In this embodiment, the transport path 3
Paper core confirmation sensor when four paper cores a are lined up on 3
Detecting that 5 is full, the rotary conveyor 3 is stopped.

The push-up mechanism 5 is installed between the end of the transport path 33 and the stop portion 34, and has a paper tube mounting table 38 fixed to the upper end of the operating shaft 37 of the air cylinder 36. The upper surface of the paper tube mounting table 38 is an inclined surface, and in this embodiment, it is inclined by about 6 ° with respect to the horizontal direction, and is flush with the end surface of the transport path 33 at the lower position and at the upper position. It is configured to be flush with the upper surface of the stop portion 34.

Further, a paper tube confirmation sensor 39 is arranged above the paper tube placing table 38, and the paper tube a on the paper tube placing table 38 is placed.
The presence or absence of is detected. When the paper tube confirmation sensor-39 detects that the paper tube a exists on the paper tube mounting table 38,
The push-up mechanism 5 moves upward.

The first paper tube feeder 1 of the present invention is constructed as described above, and is used and operated as follows.

First, the operator works on the side plates 7 and 8 of the hopper-2.
Is moved in the left-right direction by a predetermined distance so that the distance between the side plates 7 and 8 substantially matches the length of the paper tube a, and the required number of paper tubes a are stored in the hopper-2. Since the bottom surface portion 6c of the mounting plate 6 is inclined at a predetermined angle with respect to the horizontal direction, the stored paper tube a is sequentially rolled to the discharge port 10 of the hopper-2 by its own weight.

Since the discharge port 10 of the hopper-2 has a height several times as large as the diameter of the paper tube a, a plurality of paper tubes a are simultaneously discharged and accommodated in the paper tube conveying member 25 of the rotary conveyor 3. .. When the rotary conveyor 3 rotates in the direction A in FIG. 2, the paper tube a moves diagonally upward, passes through the apex of the rotary conveyor 3, and moves diagonally downward this time. Swivel conveyor 3
Is inclined at a predetermined angle with respect to the vertical direction, and since the upper cover 20 is provided, the paper tube a is attached to the paper tube conveying member 2
It is conveyed to the exit 31 without escaping from 5.

When reaching the outlet 31, the paper tube a rolls from the paper tube conveying member 25 to the start end of the conveying path 33 by its own weight, and rolls on the conveying path 33 toward its end.
The paper tube a comes into contact with the rear surface of the stop portion 34 to stop, and is placed on the paper tube mounting table 38 of the push-up mechanism 5.

When the paper tube mounting table 38 is moved upward by the operation of the air cylinder 36, the paper tube a is moved up while its outer periphery is in contact with the rear surface of the stop portion 34. When the paper tube mounting table 38 reaches the upper position, the paper tube a rolls from the paper tube mounting table 38 to the upper surface of the stop portion 34 due to its own weight, and is conveyed and supplied to the next step.

The second paper tube feeding device 41 of the present invention is shown in FIG.
1 to 6, the first paper tube feeding device 1 of the present invention
The elevating conveyor 42 and the carrier 43 are connected to each other. That is, the introducing section 44 of the elevating conveyor 42 is close to the stop section 34 of the carrier 4.

As shown in FIGS. 4 and 5, the elevating conveyor 42 pivotally supports sprockets 46 and 47 on both upper and lower ends of a pillar 45 which is erected on a carrier 43, and a chain is provided between the sprockets 46 and 47. A plurality of paper tube mounting members 49 are arranged and fixed on the chain 48 at predetermined intervals.

The paper tube mounting member 49 has a substantially L-shaped cross section,
The length is set to be larger than the length of the paper tube a, and the depth thereof is set to be larger than the diameter of the paper tube a. Further, the front end of the bottom plate is bent obliquely upward to prevent the paper tube a from falling from the paper tube mounting member 49.

A paper tube confirmation sensor 50 is arranged in the vicinity of the introduction portion 44 of the elevating conveyor 42 to confirm that the paper tube a is placed on the paper tube placing member 49. ing. Then, when the paper tube confirmation sensor 50 confirms that the paper tube a is placed, the elevating conveyor 42 is operated.

The sprocket 46 is connected to the drive motor 51 via a chain, a sprocket, etc.
The chain 48 is moved up and down by the operation of the turret 51. Also, the sprocket 46 and drive motor 51
A sprocket 52 for positioning is disposed between the position and the sprocket 52, and a small hole 52a formed in the sprocket 52 for positioning is detected by a position detection sensor-53 disposed in the vicinity to intermittently move the elevator conveyor 42. It is designed to move up and down.

As shown in FIG. 5, the transport table 43 has a transport path 54 whose upper surface is an inclined surface, the start end of which is close to the discharge portion 55 of the elevating conveyor 42, and the transport path 54 is stopped at the end of the transport path 54. A section 56 is provided. In this embodiment, the transport path 54 is inclined by about 6 ° with respect to the horizontal direction.

The second paper tube feeder 41 of the present invention is constructed as described above and operates as follows.

The paper tube a rolling on the upper surface of the stop portion 34 of the transport table 4 is transferred to the paper tube mounting member 49 at the introduction portion 44 of the elevating conveyor 42. When the paper tube confirmation sensor 50 detects that the paper tube a is present in the paper tube mounting member 49, the elevating conveyor 42 operates to move the paper tube mounting member 49 downward. When the position detecting sensor 53 detects the small hole 52a of the sprocket 52, the chain 48 moves by the arrangement interval of the paper tube mounting member 49 and stops. In this way, the paper tube a is sequentially conveyed downward.

When the paper tube mounting member 49 reaches the discharge portion 55 of the elevating conveyor 42, the chain 48 moves to the sprocket 4
6, the lower surface plate of the paper tube mounting member 49 inclines downward, and the paper tube a moves from the paper tube mounting member 49 to the transport path 54.
Rolls over the beginning of.

Then, the paper tube a rolls on the transport path 54 and comes into contact with a stop portion 55 installed at the end of the paper path a to stop.
S ₁ is a sensor for confirming the presence of the paper tube on the paper tube placing member 49 at the exit of the paper tube a.

[0045] Note that above the middle of the transport path 54 Yes disposed a paper tube check sensor -S _2, S _3, to confirm that the paper tube a is full on the conveying path 54 at S _2. In this embodiment, when there are four paper tubes a on the transport path 54, it is detected that the paper tubes are full. Next, the paper tube is positioned by the paper tube positioning device 56 so as to be gripped by the robot arm (not shown). In FIG. 5, reference numeral 57 denotes a paper tube supporter that can be moved up and down by an air cylinder 58, and the broken line shows a raised state, and it is confirmed by the sensor S ₅ that the paper tube exists at a fixed position of the robot. S ₄ is a confirmation sensor position the paper side arm of the paper tube.

[0046]

In the first paper tube feeder of the present invention, since the discharge port of the hopper is wide, the paper tube is not clogged at the discharge port, and an excessive load is applied to the paper tube near the discharge port. Not even. Further, since a plurality of paper tubes are discharged from the hopper at the same time, the paper tubes do not form a bridge in the hopper, and the discharging time can be shortened. Therefore, it is possible to smoothly and promptly convey and supply the paper tube, which has never been achieved.

In the second paper tube feeding device of the present invention,
Since the elevating conveyor is connected without relying on free fall, even when the paper tube is conveyed and supplied in the vertical direction, it can be surely supplied to a predetermined position, and the paper tube is not deformed during the conveyance. Further, the vertical space can be efficiently used, and the installation area of the paper tube feeder can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a paper tube feeding device of the present invention.

FIG. 2 is a vertical sectional view of the same main part.

FIG. 3 is a front view of a hopper.

FIG. 4 is a side view of a paper tube feeding device to which an elevating device is connected.

FIG. 5 is a side view of a lifting device and a carrier.

FIG. 6 is a front view of a case where a plurality of paper tube feeding devices connected to an elevating device are installed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper tube supply device 2 Hopper 3 Rotating conveyor 4 Conveyor stand 5 Push-up mechanism 10 Discharge port 24 Chain 25 Paper tube conveyor member 33 Conveyance path 34 Stop section 36 Air cylinder 37 Working axis 38 Paper tube placing table 41 Paper tube Supplying device 42 Elevating conveyor 43 Conveying stand 48 Chain 49 Paper tube placing member 54 Conveying path 55 Stopping part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 592012812 Yamatogawa Paper Co., Ltd. 5-2-11 Uehonmachi, Tennoji-ku, Osaka City, Osaka Prefecture (72) Inventor Takao Yazaki 1 Toho-cho, Yokkaichi-shi, Mie Mitsubishi Petrochemical Incorporated company Yokkaichi Research Institute (72) Inventor Tamotsu Nishihara 1000 Kawajiri-cho, Yokkaichi-shi, Mie Mitsubishi Yuka Engineering Co., Ltd. Yokkaichi factory (72) Inventor Toshihiko Ichioka 1000-shi, Kawajiri-cho, Mie Prefecture Mitsubishi Petrochemical Engineering Co., Ltd. Yokkaichi Plant (72) Inventor Takashi Watanabe 3-8-15 Hineihigashi, Yokkaichi-shi, Mie Incorporated company Misuzu Mec (72) Inventor Takashi Miyake 5-2 Uehonmachi, Tennoji-ku, Osaka-shi, Osaka No. 11 Yamatogawa Paper Co., Ltd.

Claims (2)

[Claims] 1. A hopper capable of storing a large number of paper tubes and having a paper tube outlet, a rotary conveyor which intermittently operates by fixing a plurality of paper tube conveying members at predetermined intervals, and a conveying path having an inclined surface. A paper tube feeding device including a transporting table having a stop portion whose upper surface is an inclined surface, and a lifting mechanism in which a paper tube mounting table is fixed to the tip of an operating shaft of an air cylinder. 2. A hopper capable of storing a large number of paper tubes and having a paper tube outlet, a rotary conveyor which intermittently operates by fixing a plurality of paper tube conveying members at predetermined intervals, and a conveying path having an inclined surface. And a push-up mechanism in which the paper tube mounting table is fixed to the tip of the operating shaft of the air cylinder, and a plurality of paper tube mounting members are mounted on the chain that moves up and down. A paper tube feeding device including an elevating conveyor that is fixed at a predetermined interval and operates intermittently, and another conveyance table that has a conveyance path that is an inclined surface and that has a stop portion.