JPH0210056B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention involves cutting a roll of hoop material into multiple strips using, for example, a slitter, and winding these strips onto corresponding winding reels. Regarding multi-strip winding/feeding device.

(Prior art) Conventional devices of this type include one in which each strip of hoop material cut into multiple strips is simultaneously wound onto corresponding take-up reels attached to a common drive shaft, and It is known that each strip of hoop material cut into strips is wound onto a take-up reel attached to a corresponding independent drive shaft while controlling the tension.

(Problems to be Solved by the Invention) However, according to the former conventional device,
Because the minute difference in elongation of each strip is integrated, the strips wound on each take-up reel vary in shape, with some being wound with excessive tension and others being wound in a loose state. Since the tension is not constant, there is the inconvenience that after winding, it is necessary to rewind the strip on each take-up reel so that the strip is wound with a predetermined tension.
Further, according to the latter conventional device, each strip is wound with a predetermined tension, which is convenient, but the structure is complicated and large, and it is also very expensive.

(Means for Solving the Problems) The present invention aims to solve the above-mentioned disadvantages and provide a simple device capable of simultaneously winding up a large number of strips at a predetermined tension. A planet wheel with a take-up/feed-out reel and a pair of sun wheels abutting on both sides of the planet wheel are rotatably mounted on the drive shaft to form one block, and multiple blocks of this are rotatably attached. Drive planetary wheels are fixedly provided on the drive shaft and contact the sun wheel of one block and the sun wheel of the other block between the blocks, and are located at both ends of all the blocks. The second invention is characterized in that each outer sun wheel of the block is fixedly provided on the drive shaft, and the second invention includes a planet wheel provided with a take-up/feed-out reel and a planet wheel on the drive shaft. A pair of sun wheels abutting on both sides are rotatably attached to form one block, and a plurality of these blocks are installed on the drive shaft, with the sun wheel of one block and the sun wheel of the other block being connected between the blocks. In a device in which a driving planetary wheel that contacts the sun wheel is fixed on the drive shaft, each of the outer sun wheels of the blocks located at both ends of all the blocks is a non-driven planetary wheel that is rotatable with respect to the drive shaft. It is characterized by being connected by a shaft.

(Example) Next, examples of the present invention will be described.

In FIG. 1, reference numeral 1 indicates a drive shaft on the winding side of the winding/unwinding device, and the drive shaft 1 is driven by a torque-controlled or speed-controlled drive machine (not shown).

2 is a take-up reel 3 for winding the hoop material around its outer circumference.
The spider 5 of the take-up reel 3 is rotatable by a bearing 4 with respect to the drive shaft 1, and is made of a rolling wheel or a bevel gear. 3 pieces can be installed.

A pair of sun wheels 6, 6 abut on both sides of the planet wheels 2, 2, 2, which are composed of friction disks or bevel gears, are rotatably attached to the drive shaft 1 by bearings 6.

The three planet wheels 2, 2, 2 and the two sun wheels 7, 7 form one block, and five of these blocks are provided on the drive shaft 1.

Further, reference numeral 8 denotes a drive planetary wheel that contacts the sun wheel 7 of one block B and the sun wheel 7 of the other block B between the blocks B, and is composed of a rolling wheel or a bevel gear, and a spider fixed to the drive shaft 1. 9, for example, three are attached at 120° intervals in the radial direction of the drive shaft 1.

Further, the outer sun wheels 7 of the blocks located at both ends of the five blocks were fixedly provided on the drive shaft 1.

Incidentally, when a rolling wheel is used as the planetary wheel 2 and a friction disk is used as the sun wheel 7, it goes without saying that lateral pressure is applied to all five blocks by springs.

(Operation) Next, the operation will be explained based on the principle diagram shown in FIG.

In FIG. 2, only one planetary wheel 2 in one block and one driving planetary wheel 7 between blocks are shown, and each strip supplied to each of the five take-up reels 3 is connected to a spring 1.
0, the tension of each spring 10 is F ₁ to F ₅ , and the axis of the unillustrated reel on the unillustrated side that rotates synchronously with the drive shaft 1 on the take-up side is expressed as a virtual reference line 11 . Ta.

In this case, for ease of explanation, the drive shaft 1
Considering that and the virtual reference line 11 are stationary, 5
5 planetary wheels 2, 2... and 5 driving planetary wheels 8, 8
. . . and connect both ends of the drive shaft 1 as shown in FIG.
It can be thought of as 5 movable pulleys and 5 fixed pulleys suspended from ropes fixed to .

Now, the lengths of the strips supplied to the five take-up reels 3, 3... are all equal, and as shown in the figure, the lengths S ₁ to _{S 5} of the five springs 10, 10... are all equal. In this case, all the tensions F ₁ to F ₅ are equal, so all the planet wheels 2, 2... and all the drive planet wheels 8, 8... do not rotate, but in the same direction as the drive shaft 1. They rotate at the same rotational speed N, and the drive torque from the drive shaft 1 is always equally distributed in 1/5 increments to the five take-up reels 3, 3..., and the five strips are always at a constant tension. It will be wound on the take-up reel 3.

Further, among the five take-up reels 3, 3..., for example, the length of the strip supplied to the middle take-up reel ₃₃ is longer than the others, and the length of the spring ₁₀₃ is _S3.
When elongated by ΔS ₃ , its tension F ₃ decreases, and the reaction force F ₃ /2 by the planetary ring 2 applied to each solar ring 7 of the middle block is increased by the planetary ring applied to each solar ring 7 of the other blocks. Reaction force due to wheel 2 F ₁ /2, F ₂ /2, F ₄ /2, F ₅
/2, so all the planetary wheels 2 and the drive planetary wheel 8 rotate in the direction that eliminates the growth of ΔS ₃ , the middle planetary wheel 2 ₃ rises by ΔS ₃ , and the other planetary wheels 2 ₁ , 2 ₂ , 2 ₄ , and 2 ₅ each decrease by ΔS ₃ /4 and reach equilibrium. In this way, the drive torque from the drive shaft 1 is always equally distributed in 1/5 increments to the five take-up reels 3, 3..., and the five strips are always applied to each take-up reel 3 with constant tension. It will be rolled up.

Incidentally, among the five take-up reels 3, 3..., for example, the length of the strip supplied to the middle take-up reel ₃₃ is shorter than the others, and the length _S3 of the spring ₁₀₃ is _ΔS3. When the strips are contracted by a certain amount, the operation is reversed to achieve equilibrium, and the five strips are always wound on their respective take-up reels 3 with constant tension.

FIG. 4 shows a modification of the one shown in FIG. 1. In this case, each block is assembled onto the sleeves 12 and 13 that are loosely fitted to the drive shaft 1, and each block is attached as necessary. - Made it removable.

The one shown in Figure 5 is one in which the outer sun wheels 7, 7 of the blocks located at both ends of all the blocks are connected by a non-drive shaft 14 rotatable with respect to the drive shaft 1. is not particularly different from that shown in the first figure. To explain this in more detail,
The non-drive shaft 14 is installed inside the hollow drive shaft 1 via a bearing 15, its right end is connected to the rightmost sun wheel 7 via a friction disk 16, and its left end is connected to the spur gear 1.
7. Connected to the leftmost sun wheel 7 via a gear interlocking shaft 18 and a spur gear 19 in this order.

In this case, the planetary wheel 2, the sun wheel 7, the driving planetary wheel 8
In order to prevent mutual slippage, lateral pressure is applied by a disc spring 20. In this case, it goes without saying that the same operation as that shown in the first diagram is carried out, but
Furthermore, since all the planet wheels 2 and all the driving planet wheels 7 are connected in a loop, even if the length of any of the many strips changes, it is possible to immediately return to the equilibrium state. can.

In the figure, 21 indicates a pulley for driving the drive shaft 1, and 22 indicates a bearing that supports the drive shaft 1. Although the winding side has been mainly described above, the device of the present invention can also be used, for example, as a back tension device on the unwinding side when winding a plurality of electric wires onto each winding reel at the same time.

(Effects of the Invention) As described above, according to the first aspect of the present invention, the multi-strip winding/feeding device is provided with the same number of differential mechanisms each consisting of a planetary ring and a sun ring as the number of strips, and the differential mechanism is provided to drive the mutual movement between them. Because they are connected by planetary wheels, a large number of strips can be simultaneously wound onto a take-up reel attached to a common drive shaft, each with the same constant tension, and a payout reel with a large number of strips attached to a common drive shaft. The device can be fed out at the same time with the same constant tension, and the structure of the device is simple and can be provided at low cost.

Further, according to the second invention, since the differential mechanism is connected in a plurality of loops, it not only has the above-mentioned effects of the first invention, but also has This has the effect of immediately returning all reels to an equilibrium state even if tension fluctuations occur.

[Brief explanation of drawings]

FIG. 1 is a cutaway plan view showing an example of the implementation of the device of the present invention, FIGS. 2 and 3 are illustrations explaining the principle, and FIG.
This figure is a cutaway plan view showing a modification of FIG. 1, and FIG. 5 is a cutaway plan view showing another example of the apparatus of the present invention. 1... Drive shaft, 2... Planet wheel, 3... Take-up reel, 7... Sun wheel, 8... Drive planet wheel, 14...
Non-driving shaft.

Claims (1)

[Scope of Claims] 1. A planetary wheel equipped with a take-up/feed-out reel and a pair of sun wheels abutting on both sides of the planetary wheel are rotatably mounted on the drive shaft and constituted as one block. ,
A plurality of these blocks are provided on the drive shaft, and drive planetary wheels that contact the sun wheel of one block and the sun wheel of the other block are fixedly provided between the blocks, and all blocks are fixedly provided on the drive shaft. A multi-filament winding/feeding device characterized in that the outer sun wheels of the blocks located at both ends are fixedly provided on the drive shaft. 2. A planet wheel equipped with a take-up/feed-out reel and a pair of sun wheels abutting on both sides of the planet wheel are rotatably mounted on the drive shaft to form one block,
A plurality of such blocks are provided on the drive shaft, and drive planetary wheels that contact the sun wheel of one block and the sun ring of the other block are fixedly provided between the blocks on the drive shaft. A multi-thread winding/feeding device characterized in that each outer sun wheel of a block located at both ends of the block is connected to the drive shaft by a rotatable non-drive shaft.