JPS6030270Y2 - Accumulator - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an accumulator that temporarily stores filaments such as electric wires without stopping the production line when replacing a winding bobbin in the production of covered electric wires or stranded wires.

In general, this type of accumulator includes, for example, a fixed wheel 2 supported at a fixed position on a main body frame 1, and a fixed wheel 2 supported by the main body frame 1 so as to be movable toward or away from the fixed wheel 2, as shown in FIG. The filament body 4 is wound in multiple turns between the movable wheel 3 and the movable wheel 3, and the filament body 4 is stored between both wheels by moving the movable wheel 3 in a direction away from the fixed wheel 2,
Also, by moving the movable wheel 3 in a direction approaching the fixed wheel 2, the filament 4 accumulated between both wheels
It is configured to emit (wire).

Further, as a drive mechanism for moving the movable wheel 3 toward and away from the fixed wheel 2, a chain 5 is stretched within the main body frame 1 and is connected to the trolley 7 of the movable wheel 3. The chain 5 is configured to be driven by an electric motor 6.

Further, between the fixed wheel 2 and the movable wheel 3 on the main body frame 1, there is provided a linear body slack absorbing device 8 which is movable.

The slack absorbing device 8 is equipped with guide rollers 9, which prevent slack from occurring in the filament 4 that is stretched between the fixed wheel 2 and the movable wheel 3. This is designed to prevent the occurrence of a hunting phenomenon that adversely affects line processes before and after the process.

In addition, in order to sufficiently prevent the loosening of the filament body 4, the slack absorbing device 8 is installed at the maximum distance position where the movable wheel 3 is separated from the fixed wheel 2 by a maximum distance 1, as shown by the solid line in FIG. A, the moving wheel 3 is moved to a substantially intermediate position B, and is also moved according to the change in the distance between the moving wheel 3 and the fixed wheel 2, as shown by the imaginary line in FIG. is at the closest position C closest to the fixed wheel 2, the slack absorbing device 8 is also moved to the closest position C closest to the fixed wheel 2.

Therefore, when the movable wheel 3 moves between the close position C and the maximum separation position A, the slack absorbing device 8 is moved between the close position and the intermediate position 8.

By the way, when paying attention to the movement of the slack absorbing device 8 that is moved in this way, during the above-mentioned land line, the slack absorbing device is 8 is automatically moved to the fixed wheel 2 side.

However, on the other hand, when the wire is stored, it is not possible to use the above-mentioned moving force or traction force, so a separate moving mechanism is required to move the slack absorbing device 8 back to its original position. It is.

Conventionally, known methods of moving the slack absorbing device include a spring return method, a wire pulling method, and an independent drive method.

However, these systems have various problems such as a complicated structure.

That is, in the spring return method, a return spring (not shown) is stretched between the intermediate position B of the body frame 1 and the trolley 10 of the slack absorber 8, and the slack absorber 8 is It is held elastically at the intermediate position B.

In addition, in the wire pulling method, the moving wheel 3
The bearing truck 7 of the present invention and the truck ``0'' of the slack absorbing device 8 are connected to each other by a distance approximately half of the maximum distance 1 by a take-off wire (not shown).

According to these spring return methods and wire take-up methods, when the moving wheel 3 moves from the maximum separation position A to the proximity position C, the bearing cart 7 moves the cart 10 of the slack absorbing device 8 to the When the moving wheel 3 is pressed and moved from the intermediate position B to the close position and then moved from the close position C to the maximum separation position A, in the case of the former method, the elastic restoring force of the return spring In the case of the latter method, the slack absorbing device 8 is moved back from the close position to the intermediate position B by the moving force of the moving wheel 3 via the take-up wire.

However, in the former spring return method, the return speed of the slack absorbing device 8 is determined by the spring force of the return spring. If the accumulator handles a wide range of striatal bodies 4 of different thicknesses, the force applied to the slack absorbing device 8 will vary depending on the striated bodies 4, so the thickness of the striated body 4 will vary. There is the trouble of having to adjust the spring force of the return spring according to the height.

Moreover, for example, if the spring force of the return spring is too large relative to the thickness of the filamentary body 4, the return speed of the slack absorbing device 8 will become too fast, giving a shock to the filamentous body 4. There is a problem in that it is difficult to appropriately adjust the spring force of the return spring because there is a possibility that the filament body 4 may be damaged.

In addition, in the wire pulling method, the moving wheel 3
When the land line moves close to the fixed wheel 2 side, the bearing truck 7 of the moving wheel 3 and the truck 10 of the slack absorbing device 8
Since the two carriages are close to each other, the take-up wires between the carriages become loose and easily become entangled.

Therefore, a configuration must be provided to prevent the take-up wire from becoming entangled, and, for example, if a pit is provided to accommodate the slack of the take-up wire, space must be secured for its arrangement. , there are problems such as difficulty in securing the space.

Further, according to the independent drive system of the slack absorbing device in the conventional accumulator, a special drive mechanism must be provided to move the slack absorbing device 8, which causes problems such as the overall structure of the accumulator becoming extremely complicated. There is.

This invention has been made in view of the various problems of the conventional art described above, and is an accumulator equipped with a mechanism for moving a slack absorbing device that is trouble-free, relatively inexpensive, and has no adverse effect on the striatum. The purpose is to provide the following.

An embodiment of this invention will be described below with reference to FIGS. 2 to 10.

Components similar to those shown in FIG. 1 are designated by the same reference numerals and their explanations will be omitted.

That is, in this invention, the locking mechanism 11 that functions to hold the cart 10 of the slack absorbing device 8 at a predetermined position on the main body frame 1, the cart 7 of the moving wheel 3, and the cart 10 of the slack absorbing device 8 are combined. A connecting mechanism 12 that functions to connect
It is characterized by having the following.

Both of these mechanisms 11, 12 are mainly composed of two members, and each of these members can be locked and uncoupled, respectively.

Note that the carriage 7 of the moving wheel 3 and the carriage 10 of the slack absorbing device 8 are connected to the rail 1 provided on the main body frame 1.
3, so that it can run freely.

Further, reference numeral 14 in the figure is a stopper for locking the slack absorbing device 8 at the above-mentioned close position.

Next, regarding the specific configurations of the locking mechanism 11 and the connecting mechanism 12, first, the configuration of the locking mechanism 11 will be explained as follows.
This will be explained in detail based on FIG. 6, FIG. 7, and FIG.

On each left and right side of the intermediate portion E on the main body frame 1 side,
A locking bar 16.16 is held substantially horizontally via a support 15.15.

Further, on the side of the slack absorbing device 8, a support body 17.17 is provided, and a locking arm 18 having notches 18a, 18a that matches and locks the locking bar 16.16. .18 is connected to the support 1 via the support shaft 19.
7.17 is rotatably supported.

The locking arm 18.18 also has a spring 20.2.
0 in the direction of locking the locking bar 16.16 (downward in FIG. 5).

Further, the locking mechanism 11 as described above is provided with a lock release means.

These include an unlocking arm 21° 21 that is provided on the support shaft 19 on the side of the main body frame 1 and is rotatable integrally with the locking arm 18, and a carriage 7 of the moving wheel 3.
It is constituted by a lock release bar 23 which is provided substantially horizontally on the side via supports 22, 22 and can come into contact with the release arms 23, 23.

Next, the connection mechanism 12 will be explained in detail.

Support bodies 24, 24 are provided on the trolley 7 side of the moving wheel 3.
The connecting bar 25 is held substantially horizontally through the connecting bar 25.

Further, cutout portions 26a and 26 are provided on the side of the trolley 10 of the slack absorbing device 8 so as to match and connect to the connection bar 25.
Connecting arms 26, 26 having a diameter a are rotatably supported via a support shaft 27.

The connecting arm 26 is always urged by a spring 28 in the direction of connecting to the connecting bar 25 (downward in FIG. 5).

Further, the above-mentioned coupling mechanism 12 is provided with a coupling release means.

A decoupling bar 30 is provided at one end of the support shaft 27 on the trolley 10 side of the slack absorbing device 8 via a connecting body 29 and is rotatable integrally with the connecting arm 26.
and a decoupling arm 31 that is provided on the side of the intermediate portion E of the main body frame 1 and can come into contact with the decoupling bar 30.

In the figure, 32 and 33 are stoppers for the locking arm 18J and the connecting arm 26, respectively, and 34 is a cushioning material such as rubber.

Next, the operation of the accumulator configured as described above will be explained with reference to FIGS. 2 to 4 and 8 to 10.

Normally, as shown in the second figure, the slack absorbing device 8 and the moving wheel 3 are located at adjacent positions C and D, respectively, and the filament 4 introduced from the production line (not shown) is continuously moved to the winding pin. (not shown).

At this time, as shown in FIG.
6a is matched with the connecting bar 25 by the force of a spring 28.

Therefore, the carriage 10 of the slack absorbing device 8 and the carriage 7 of the moving wheel 3 are connected to each other by the coupling mechanism 12.

Also, at this time, the lock release bar 23 is moved to the lock release arm 2.
1, and the locking arm 18 is rotationally displaced upward against the spring 20.

Now, when the winding bobbin is fully wound and you want to replace it with a new one, move the carriage 7 of the movable wheel 3 to the fixed wheel 2.
Since the line storage of the filament 4 is performed by moving the filament 4 in a direction away from the line body 4, the slack absorbing device 8 is moved together with the moving wheel 3 in the connected state at a speed corresponding to the introduction speed of the filament 4.

Then, when the slack absorbing device 8 reaches the intermediate position B as shown in FIG. 3, the connection release arm 31 comes into contact with the connection release bar 30 as shown in FIG.
6 is rotationally displaced upward against the spring 28, and the connection between the carriages 7 and 10 is released.

Then, only the movable wheel 3 moves away from the fixed wheel 2 (see FIG. 10), and the lock release bar 23 immediately separates from the lock release arm 21.

As a result, the notch 18a of the locking arm 18 is aligned with the locking bar 16 by the force of the spring 20, and the carriage 10 is moved to the intermediate position E of the main body frame 1 so that the slack absorbing device 8 itself is located at the intermediate position B. is quickly locked.

When the winding bobbin has been replaced and the movable wheel 3 reaches the maximum separation position A (see Fig. 4), the movable wheel 3 is moved closer to the fixed wheel 2 so as to perform a land line action. Ru.

Then, when the lock release bar 23 on the trolley 7 side of the movable wheel 3 comes into contact with the lock release arm 21 again, the locking action of the lock mechanism 11 is released, and the buffer member 3
Since the slack absorbing device 8 is brought into contact with and moved through the lever 4, the disconnecting bar 30 immediately separates from the disconnecting arm 31.

As a result, both carts 7 and 10 are quickly connected again by the connecting mechanism 12, and the slack absorbing device 8 is connected to the moving wheel 3.
At the same time, it is moved close to the fixed wheel 2.

Then, when the slack absorbing device 8 and the moving wheel 3 reach their close position C9D again, the accumulator action ends.

Thereafter, the same operation is repeated every time the winding bobbin is replaced.

The springs 20, 20 of the locking mechanism 11 also have a shock-absorbing effect when the carriage 7 of the moving wheel 3 and the carriage 10 of the slack absorbing device 8 are connected, and the spring 28 of the coupling mechanism 12 The springs 20.
Preferably, a spring constant of 8°28 is set.

Further, the configurations of the locking mechanism 11 and the connecting mechanism 12 are not limited to the above embodiments, and can be modified as appropriate. The structure may be electrically controlled, or may utilize electromagnetic attraction or repulsion, and the structure of the lock release means and connection release means may be changed in design accordingly. Of course you can.

According to this invention, the trolley of the slack absorbing device is releasably locked to the intermediate portion in the length direction of the main body frame, which corresponds to approximately the midpoint between both wheels when the movable wheel is farthest from the fixed wheel. It has a locking mechanism and a coupling mechanism that releasably connects the carriage of the movable wheel and the carriage of the slack absorbing device, and while the movable wheel moves within the range from the intermediate portion of the main body frame to the fixed wheel. , the slack absorbing device is connected to the carriage of the movable wheel by the coupling mechanism, and while the movable wheel is moving within the range from the intermediate portion of the main body frame to the movement stop position on the opposite side of the fixed wheel, the above-mentioned Since the slack absorbing device is locked to the intermediate portion of the main body frame by the locking mechanism, the slack absorbing device can be constantly connected by a relatively simple connection and disconnection mechanism without requiring any special large-scale incidental equipment. It is possible to provide an accumulator equipped with a mechanism for moving a slack absorbing device that can be easily moved to a proper position, has very few failures, and is inexpensive. Because it moves integrally at the same speed as this,
This has the advantage that there is no fear that the moving speed of the slack absorbing device will become too fast and cause damage to the filamentary body.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of a conventional accumulator. Figures 2 to 10 are views showing an embodiment of this invention, in which Figure 2 is a side view showing the accumulator according to this invention in its normal state, and Figure 3 is a side view of the accumulator in the middle of its storage line. Fig. 4 is a side view showing the state at maximum wire storage, Fig. 5 is an enlarged side view of the main part, and Fig. 6 is the main part as seen from the direction of arrow F in Fig. 5. Front view of the section, Figure 7 is the 6th
Fig. 8 is a side view of the main parts of the connecting mechanism when viewed from the direction of arrow G in the figure, Fig. 9 is a side view of the main parts of the connecting mechanism when the connection is activated, and Fig. 9 is when switching the operation between the connecting mechanism and the locking mechanism. Side view of main parts,
FIG. 10 is a side view of the main parts of the locking mechanism during locking operation. 1... Body frame, 2... Fixed wheel, 3... Moving wheel, 7... Dolly, 8... Slack absorber, 9... Guide roller, 10... Dolly, 11... Locking mechanism, 12... Connection mechanism, 13... Ray

Claims (1)

[Scope of utility model registration request] (a) a main body frame 1 having a rail 13 extending horizontally on the upper surface; (b) a fixed wheel 2 supported at a fixed position on the main body frame 1; and (c) the rail 13.
a) a movable wheel 3 supported by a truck 7 running above and capable of approaching and moving away from the fixed wheel 2; and a) guide rollers 9 supported on a truck 10 running on the rails 13;
and (e) both wheels 2 and 3 in a state where the moving wheel 3 and the fixed wheel 2 are farthest apart from each other. An intermediate portion in the length direction of the main body frame 1 corresponding to approximately the midpoint of and the slack absorbing device 8
is provided at each opposing portion of the truck 10, and while the movable wheel 3 is moving within a range from an intermediate portion of the main body frame 1 to a movement stop position on the opposite side of the fixed wheel 2, there is no slack. A releasable locking mechanism 11 that locks the absorber 8 to an intermediate portion of the main frame 1 and allows the movable wheel 3 to run independently; (f) the carriage 7 of the movable wheel 3 and the slack absorber 8; The slack absorbing device 8 is provided at each opposing portion of the truck 10, and while the movable wheel 3 is moving within the range from the intermediate portion of the main body frame 1 to the fixed wheel 2, the slack absorbing device 8 is attached to the movable wheel 3. An accumulator characterized by having a releasable connection mechanism 12 which is connected and made to run integrally.