JPH0825677B2 - Web rewinder - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to a plastic film,
Web materials such as cellophane, paper, cloth, etc.
The present invention relates to a web rewinding device which is used for subdividing a thick roll of 000 m into a predetermined width or length (for example, 20 to 100 m).

[0002]

2. Description of the Related Art As shown in FIG. 12, a conventional web rewinding operation is carried out by taking out web rolls a one by one from a pallet (not shown), and then performing preparation work such as peeling and tape sticking. While manually supplying the rewinder b to rewind the web c, a hopper e is provided above the rewinding machine d to store a large number of paper tubes f therein, and the paper tubes f are stored in the hopper e. In order to prevent f from bridging, a bridge breaker h consisting of an eccentric roll directly connected to the drive system of the rewinding machine d is attached near the discharge port g, and the paper tube f is dropped by gravity while constantly rotating it. Then, the web c is wound around the paper tube f for a predetermined length, and the obtained product rolls i are individually dropped from the crossing plate j into the packaging container k for shipping the products by gravity. Let me pay you The law had been taken.

[0003]

In this paper tube feeding method, 1) since the paper tube f in the hopper e is discharged by gravity, the angle of the bottom surface of the hopper e must be at least 30 °. As a result, the amount of storage was limited. 2) Since the bridge breaker h is constantly operating, the hopper e
The paper tubes f rub against each other inside to generate a large amount of paper dust, which cannot be removed. 3) A hopper e just above the rewinding machine d
However, there is a problem in that it is difficult to replenish the paper core f into the hopper e and work in the rewinding machine d. Further, supplying the web roll a one by one each time it is replaced requires frequent work, has a high supply position, and is a heavy object, so that workability is poor and there is a safety problem. there were. Therefore, it has been desired to reduce the replenishment frequency to improve workability to reduce the number of personnel and save labor. Furthermore, when the product roll i is dispensed, the packing in the packaging container k is not stable due to spontaneous fall, and a complaint is generated in a later process, or the product roll i is biased toward the center of the packaging container k and falls. For this reason, it is necessary to carry out correction work after constantly monitoring the container k such that it overflows from the container k and becomes a defective product.

Therefore, the object of the present invention is to improve the supply mechanism of the paper tube and the web roll and the delivery mechanism of the product roll to increase the storage amount of the paper tube and to move the paper tube, the web roll and the product roll. (EN) Provided is a web rewinding device which improves workability and prevents the generation of paper dust and defective products.

[0005]

[Means for Solving the Problems] This web rewinding device is ( a ) a storage hopper for accommodating a paper tube and a front part of its bottom.
It is connected to the paper pipe cutting conveyor installed in the
A paper tube feed mechanism and a conveyor, (b) Weburo
With a web roll cradle that supports the roll with its paper core
The receiving conveyor and the higher one, which is the same as the receiving conveyor.
Traverse with forward and backward means of web roll cradle
Above the mechanism and the receiving conveyor and traverse mechanism
Install the web roll on the receiving conveyor that was erected.
Traverse machine that grips with paper core and moves up and down and width direction
Hand with means for transferring to the web roll cradle
A web roll supply mechanism including a sliding mechanism ,
( C ) the paper tube from the paper tube supply mechanism, and the traverse machine
Accepts web rolls on a web roll cradle
And a rewinding mechanism having means for winding the web of the web roll around the paper tube into a product roll, and ( d ) a plurality of rewinding mechanisms .
Floor consisting of a shutter that can be opened and closed, and products below it
And product roll dispensing mechanism that includes a receiving box, consisting of
It is characterized by that.

[0006]

In the web rewinding device of the present invention,
1) Paper core supply mechanism: a) smooth supply of paper core and prevent generation of paper dust; b) improved workability and labor saving; c) free transportation path and set volume You can design. 2) the web roll supply mechanism, a) because it installed any number of web rolls on a conveyor requires less replenishment frequency; b) of the receiving conveyor and the traverse mechanism high
The height of the receiving conveyor is
Installed on the ground to ensure workability and to traverse
Advancing path is ensured work between the rewinding mechanism in mechanism
Smooth the line ; c ) web roll support is done by paper tube
Therefore, it is not affected even if the winding outer diameter changes. 3) The product roll payout mechanism prevents generation of defective product rolls, improves workability, and saves labor.

[0007]

EXAMPLES The details of the web rewinding device of the present invention will be described below based on the embodiments shown in FIGS. FIG. 1 is a schematic front view showing the entire web rewinding device. This web rewinding device comprises a paper tube feeding mechanism A, a web roll feeding mechanism B, a rewinding mechanism C, and a product roll payout mechanism D.

FIG. 2 is an enlarged front view of the paper tube feeding mechanism A, in which 1 is a storage hopper for storing a large number of paper tubes 2 and 3 is a cutting conveyor provided at the bottom front thereof.
Reference numeral 4 denotes a conveyor for individually transporting the paper tubes 2 provided to the rewinding mechanism C, and 5 for storing a certain amount of the paper tubes 2 provided at the entrance of the rewinding mechanism C. It is a supply hopper. Side plate 1 in the width direction of the storage hopper 1
“A” is movable in the width direction so that the width of the paper tube 2 to be accommodated can be changed. Further, the bottom plate 1b is provided with a slope of about 5 ° which is lowered toward the front, and the paper tube 2 in the storage hopper 1 is provided with a discharge port 1c at the bottom.
The cutting conveyor 3 can be moved more smoothly.

The transport conveyor 4 has pins 4a on the conveyor.
Are provided, the pins 4a can receive the paper tubes 2 on the cutout conveyor 3 one by one at the connection portion with the cutout conveyor 3. The transport conveyor 4 may use a chain, a timing belt or the like as long as the function of separating and holding the paper tubes 2 one by one can be secured. Also, the cutout conveyor 3 and the transfer conveyor 4
The speed ratio of the two can be changed by using separate drive systems or by providing a speed reducer on one side.
6 is a remaining amount detection sensor, which detects that the remaining amount in the supply hopper 5 has decreased, operates the cutout conveyor 3 and the transfer conveyor 4, and sequentially cuts out the paper tube 2 from the storage hopper 1 and the rewinding mechanism C. Supply to. vice versa,
When detecting that the supply hopper 5 is full, the operation of the cutout conveyor 3 and the transfer conveyor 4 is stopped.

[0010] 7 is a bridge sensor, savings Me hopper 1
When the paper tube 2 forms a bridge near the discharge port 1c and the discharge onto the cutout conveyor 3 is stopped, the abnormality is promptly detected, and the air cylinder 8a and the tip block 8b provided in the discharge port 1c are detected. To the bridge breaker 8, and the air cylinder 8a for driving the bridge breaker 8 is actuated to cause the tip block 8b to project, and the paper tube 2 is impacted to eliminate the bridge. For this reason,
The paper tube 2 does not rub against other objects to generate paper dust.
Since the operating system of the cutting conveyor 3, the conveying conveyor 4, and the rewinding mechanism C is separate from the bridge breaker 8, if the drive system is divided so that the bridge breaker 8 operates only when a bridge occurs, the air cylinder Other power sources such as motors and solenoids other than the above may also be used. Here, 9 is a dust removing device provided as needed. According to the paper tube feeding mechanism A, as shown in FIG. 1, the paper tube is fed and transferred by the combination of the storage hopper 1, the cutting conveyor 3, and the transporting conveyor 4.
Since it can be performed smoothly, it is possible to prevent the generation of paper dust.
Or, because of the sufficient space at the top of the rewinding mechanism C, it is possible to the attachment of the dust collector 9, Ru can also collect small paper powder generated during transport.

3 to 5 are an enlarged front view, rear view and side view of the web roll supply mechanism B. As shown in FIG. In the figure, 10 is a web roll, 11 is a pedestal, 12 is a web roll receiving conveyor provided horizontally on the pedestal 11, 13 is a traverse mechanism provided in parallel with the conveyor 12 and at a position higher than this. , 14 is a hand slide mechanism for transferring the web roll 10 on the conveyor 12 to the traverse mechanism 13, and is provided on the elevated platform 15 adjacent to the platform 11 above one end of the conveyor 12 and the traverse mechanism 13. ing.

The web roll receiving conveyor 12 is shown in FIG.
And as shown in FIG. 6, the chain wheels 21 on both ends,
A chain conveyor 23 stretched around 22 and two (24, 25) adjacent to each other in the width direction of each frame in the width direction are planted in an M-shape, preferably the upper part. Brackets 24, 24, 25, 25 forming a web roll cradle 26 with one side inclined at 60 ° and one chain wheel
It is composed of a motor 27 connected to 21. When one thick roll (2000 to 3000 m) of web rolls 10 is placed on the web roll cradle 26 at one end of the chain conveyor 23 and the paper tubes 28 are supplied, the web rolls 10 are moved as the chain conveyor 23 moves. It is sequentially conveyed toward the other end of 23.

As shown in FIGS. 4, 5 and 7, the hand slide mechanism 14 is a support rod 32 which is openably and closably operated by a pair of cylinders 31, 31 symmetrically provided in the width direction of the chain conveyor 23. , 32 with a hand, and a linear head that moves the hand 33 up and down along the guides 34, 34.
It comprises a moving body 36 provided with 35, and a rodless cylinder 38 for moving the moving body 36 in the width direction of the chain conveyor 23 via the LM guide 37. In the hand slide mechanism 14, when the web roll 10 is first conveyed to the other end of the chain conveyor 23 and below the elevated platform 15, the hand 33 descends and the pair of cylinders 31, 31 act to support the rods 32, 32. Is inserted into the paper core 28 of the web roll 10
Is gripped (a). Next, the hand 33 moves up by the action of the linear head 35 (b), and then the rodless cylinder.
By the action of 38, it moves above the traverse mechanism 13, and again by the action of the linear head 35, the web roll is lowered.
Web roll cradle 47 of traverse mechanism 13 (described later)
Place on top. Finally, the supporting rods 32, 32 are removed from the inside of the paper tube 28 of the web roll 10 by the action of the cylinders 31, 31 (c), the hand 33 rises, and the action of the rodless cylinder 38 raises the upper part of the chain conveyor 23. Return to its original location and prepare for the next task. Since the outer diameter of the supporting rod 32 of the hand 33 is sufficiently smaller than the inner diameter of the paper tube 28, the web roll 10 and the hand 33 can be easily aligned with each other, and the web roll 10 is moved to the web of the traverse mechanism 13. No fine adjustment is required when the roll cradle 47 is placed.

As shown in FIGS. 4 and 8, the traverse mechanism 13 includes a traverse body 41, a rodless cylinder 43 for moving the traverse body 41 in the front-rear direction through an LM guide 42 provided at one end thereof, and a traverse body. A web roll cradle 47 having a side M-shape formed by a fixed hook 44 provided at the other end of 41 and a movable hook 46 operated by a cylinder 45.
It consists of and. In the traverse mechanism 13, as shown in FIG. 8, the traverse body 41 is a rodless cylinder.
At a place directly above 43, the web roll 10 is received from the hand 33 on the web roll cradle 47 (a). The traverse body 41 moves forward by the action of the rodless cylinder 43 (b), and the rewinder 51 of the rewinding mechanism C (see FIG. 1).
In front of, the movable hook 46 is tilted by the action of the cylinder 45 (c), and the web roll 10 is transferred to the payout shaft 52 of the rewinder 51. After that, the traverse body 41 is the feeding shaft.
In order to avoid contact with 52, the movable hook 46 is retracted by the action of the rodless cylinder 43 while being tilted, and the movable hook 46 is raised by the action of the cylinder 45 and returned to the original position (d).

As described above, in the web roll supply mechanism B, all of the web roll cradle 26 of the web roll receiving conveyor 12, the hand 33 of the hand slide mechanism 14, and the web roll cradle 47 of the traverse mechanism 13 are provided. However, since the web roll 10 is supported by the paper tube 28, it is possible to cope with a change in the winding diameter of the web roll 10. Web roll receiving conveyor 12
Due to the difference in height between the traverse mechanism 13 and the traverse mechanism 13, the former ensures workability, and the latter ensures a work passage between the web roll supply mechanism B and the rewinding mechanism C.

FIG. 9 is an enlarged front view of the rewinding mechanism C. In the figure, 51 is a rewinder consisting of a turret equipped with two feeding shafts 52 for mounting the web roll 10, 53 is a touch roller, 54 is a guide roller, 55 is a pinch rubber roller, 56 is a take-up drum, 57 is a paper tube turret provided at even intervals on the take-up drum 56, 58 is a cross plate for product delivery, 60 is a product roll, 2 Is a paper tube (before winding), and 5 is the paper tube supply hopper described above in the paper tube supply mechanism A. In the rewinding mechanism C, the paper tube 2 supplied from the paper tube supply hopper 5 is transferred to the take-up drum 56.
The paper tube turret 57 is mounted at the position P. On the other hand, the web W such as a plastic film fed from the web roll 10 mounted on the feeding shaft 52 is guided by the guide roller 54.
.., reaches the take-up drum 56 through the pinch rubber roller 55, and is taken up by the paper tube 2 mounted on the paper tube turret 57 at the position Q. When the web W having a predetermined length is wound up, it is cut by a cutter (not shown) projecting from the inside of the winding drum 56 between the position P and the position Q, and the winding is performed on the next paper tube 2. Move. At the position R
Then, the product is removed from the paper tube turret 57 and sent as a product roll 60 to the product roll payout mechanism D through the crossover plate 58.

10A and 10B are enlarged views of the product roll payout mechanism D. FIG. 10A is a front view and FIG. 10B is a plan view. In the figure, 61 is a cylinder, 62 is a rack which is rotated by this action, 63 ... Pinion screwed with the rack 62,
64 is a shutter rotation shaft connected to the pinion 63, 65 is a shutter, and 66 is a product receiving box. In the product roll payout mechanism D, as shown in FIG. 11, after the product rolls 60 sequentially sent out from the rewinding mechanism C are counted by the sensor 67, the product rolls 60 are sent to the surface of the shutter 65 ... And are arranged in a line (a). (B). When a preset number of shutters 65 are evenly lined up on the shutter 65, the action of the cylinder 61 causes rack 62
Are rotated, the shutters 65 are opened, the product rolls 60 are dispersed and dropped into the product receiving box 66 (c), and the product rolls 60 are uniformly stored in the product receiving box 66. A predetermined time after the shutter 65 is opened, the shutter 65 is operated by a timer (not shown).
Automatically closes and returns to the old. When the product receiving box 66 is full, the box is replaced.

[0018]

In the web rewinding device of the present invention, 1) the paper tube supply mechanism reduces the frequency of paper tube replenishment work,
By reducing the workload of workers, it is possible to efficiently arrange personnel and machines, reduce the number of workers from 2 to 10 workers / person, and prevent the generation and mixing of paper dust. We were able to stabilize the quality. 2) With the web roll supply mechanism, the web roll supply work has been greatly improved, efficient staffing has become possible, and the number of staff has been greatly reduced. By 3) product roll dispensing mechanisms, product roll to be supplied can be prevented from being or causing collapsing or inverting in a box receiving the product, it was possible to significantly reduce the occurrence of defective products.

[Brief description of drawings]

FIG. 1 is a front view schematically showing a web rewinding device according to the present invention.

FIG. 2 is a front view showing details of a paper tube feeding mechanism A in the web rewinding device shown in FIG.

3 is a front view showing details of a web roll supply mechanism B in the web rewinding device shown in FIG. 1. FIG.

FIG. 4 is a rear view of the web roll supply mechanism B shown in FIG.

5 is a side view of the web roll supply mechanism B shown in FIG.

6A and 6B show details of the chain conveyor in the web roll supply mechanism B shown in FIG. 3, in which FIG. 6A is a front view and FIG. 6B is a plan view.

7A and 7B are explanatory diagrams sequentially showing the details of the operation of the hand slide mechanism in the web roll supply mechanism B shown in FIG.

8A to 8C are explanatory diagrams sequentially showing the details of the operation of the traverse mechanism in the web roll supply mechanism B shown in FIG.

9 is a front view showing details of a rewinding mechanism C in the web rewinding device shown in FIG. 1. FIG.

10 shows details of a product roll payout mechanism D in the web rewinding device shown in FIG. 1, (a) being a front view and (b) being a plan view.

11A and 11B are explanatory diagrams sequentially showing the details of the operation of the product roll payout mechanism D shown in FIG.

FIG. 12 is a front view schematically showing a conventional web rewinding device.

[Explanation of symbols]

1 ... Storage tank, 2 ... Paper tube, 10 ... Web roll, 51 ...
Rewinder, 56 ... Winding drum, 57 ... Paper tube turret, 60 ... Product roll, 66 ... Product receiving box. A: paper tube feeding mechanism, B: web roll feeding mechanism, C: rewinding mechanism, D: product roll dispensing mechanism, W: web.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michio Yoshizawa 1-406-1 Yoshino-cho, Omiya City, Saitama Prefecture Shin-Etsu Polymer Co., Ltd. Tokyo Factory (56) Reference JP-A-64-2965 (JP, A) Special Features Kaihei 1-231744 (JP, A)

Claims (1)

[Claims] 1. A and (b) a hopper pooled for accommodating a paper tube, its
A paper tube cutting conveyor installed in the bottom front and this
A paper tube feed mechanism and a transfer conveyor communicating with, (b)
Web roll cradle that supports the web roll with its paper core
And a receiving conveyor equipped with
In addition, a similar web roll cradle has a forward / backward moving means.
Laverse mechanism, receiving conveyor and traverse mechanism
The web row on the receiving conveyor erected above
Grip the paper with the paper tube and move it vertically and
A means to transfer to the web roll cradle of the berth mechanism is provided.
A web roll supply mechanism including a hand slide mechanism for controlling the paper roll, and ( c ) a paper core from the paper core supply mechanism,
The web roll on the web mechanism
And a rewinding mechanism having means for winding the web of the web roll around the paper tube into a product roll, and ( d )
Floor consisting of multiple openable shutters and below
Web recoiling device for the product roll dispensing mechanism and a product receiving box, characterized in that it consists of.