JPH0259107B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Background and Objects of the Invention] The present invention relates to an improvement of a bobbin support device for an under-roll type winder.

In conventional under-roll winding devices, in which the bobbin is driven to rotate as the under-roll rotates, the bobbin flange is in contact with the upper part of the outer periphery of the under-roll, the bobbin is supported from above in order to prevent the bobbin from flying out. There is. There is a conventional method of fixing the bobbin using a shaft, but it cannot cope with deformation such as distortion of the bobbin.
A need has arisen to allow the shaft to move freely. There is also a method of fixing the bobbin with a pintle in order to omit the work of inserting the shaft, but like the shaft, this method cannot cope with deformations such as distortion of the bobbin. Therefore, there are examples in which the pintle is supported and attached with a spring to give this part a degree of freedom, but in this case, the mechanical strength of the pintle and spring etc. cannot be maintained sufficiently, making it easy to break. It had the disadvantage that it could not provide sufficient pressing strength for the bobbin.

The present invention was made in view of the above-mentioned situation, and provides a bobbin support for an under-roll type winder that absorbs deformation such as distortion of the bobbin, provides smooth rotation, and increases mechanical strength. The purpose is to provide equipment.

[Summary of the Invention] The bobbin support device of the underroll type winder of the present invention is formed so that the bobbin flange is brought into contact with the upper outer periphery of the underroll so that the bobbin is rotationally driven as the underroll rotates. A pintle is provided on both sides of the shaft of the bobbin, which is driven in the axial direction via a cylinder piston, and is supported and rotatably disposed, and a piston that adjusts and controls the vertical position of the cylinder piston. a hydraulic cylinder having a built-in cylinder and disposed below each of the cylinder pistons; first and second pneumatic-hydraulic converters connected in parallel to a pneumatic supply source via a valve; A check that is disposed between the hydraulic filling part of the air-hydraulic conversion device and the upper and lower portions of the piston of the hydraulic cylinder, respectively, and is configured to allow hydraulic pressure to flow only from the air-hydraulic conversion device side to the hydraulic cylinder side. First and second speed controllers each having a valve and a throttle passage formed in parallel are provided.

[Example] Hereinafter, a bobbin support device for an under-roll type winder according to the present invention will be explained using an example with reference to FIGS. 1 and 2. FIG. 1 is an explanatory diagram of the bobbin support device portion, and FIG. 2 is an explanatory diagram of the bobbin lifting control device of FIG. 1. In FIG. 1, 1 is a bobbin, 1a is a bobbin flange of the bobbin 1, 2 is a pintle, 3 is a stand, 4 is an under roll, and 5 is a cylinder piston for driving the pintle 2. The bobbin 1 has a bobbin flange 1a in contact with the upper outer periphery of the underroll 4, and is rotationally driven by the rotation of the underroll 4. The bobbin 1 is supported by pintles 2, 2, which are driven by cylinder pistons 5 supported on stands 3 disposed on both sides of the bobbin 1, by pinching the shaft portion from both sides in the axial direction. It is rotatably supported integrally with the The height of the stand 3 is adjustable according to the diameter of the bobbin 1, and the bobbin 1 is pressed against the underroll 4, and changes in the shape of the bobbin 1 are absorbed and smoothed by the vertical movement of the pintle 2. It is now possible to rotate.

In FIG. 2, a hydraulic cylinder 6 is housed in the stand 3 of FIG. 1, and has a built-in piston 15 for adjusting the vertical position of the cylinder piston 5. In FIG. Reference numeral 7 denotes a first speed controller, in which a check valve 7a and a throttle passage 7b, in which pressure oil flows in the direction of the arrow and is blocked in the direction opposite to the arrow, are arranged in parallel, and the upper part of the piston 15 of the hydraulic cylinder 6 and the first pneumatic oil pressure are connected in parallel. It is disposed in a passage between the converter 8 and the pressure oil filling section at the bottom. The first and second pneumatic-hydraulic converters 8 and 9 each have a pressure oil filling section formed in their lower part, and the upper pneumatic part communicates with a pneumatic supply source 14 through a valve 13. 10 is the third speed controller and valve 1
A check valve 10a that allows air to flow from the third side and blocks flow in the opposite direction to this flow is formed in parallel with a flow rate adjustment section 10b, and 10c is a meter.

In the communication path between the lower part of the piston 15 of the hydraulic cylinder 6 and the hydraulic filling part of the second pneumatic-hydraulic converter 9, there is a valve 11 and a flow of hydraulic pressure in the direction of the arrow from the second pneumatic-hydraulic converter 9 side. A second speed controller 12 is provided in which a check valve 12a and a throttle passage 12b are arranged in parallel, and a check valve 12a and a throttle passage 12b are arranged in parallel to prevent the hydraulic pressure from flowing in the opposite direction to this flow. Further, the valve 13 has the left and right connecting ends 14a and 14b of the pneumatic pressure supply source 14 connected to the first and second pneumatic-hydraulic converters 8 and 9, respectively, so that the valve 13 has equal pressure at the illustrated position. When the valve 13 moves to the left position from the illustrated position, the connecting end 14b communicates with the second pneumatic-hydraulic converter 9, the connecting end 14a is closed, and the first pneumatic-hydraulic converter 8 passes through the valve 13 to the atmosphere. It is now being communicated with. Further, when the valve 13 is moved to the right position, the connecting end 14a communicates with the first pneumatic-hydraulic converter 8, the connecting end 14b is closed, and the second pneumatic-hydraulic converting device 9 is opened to the atmosphere via the valve 13. It's getting old. The valve 11 is in a communicating state in the illustrated position, and is in a closed position in a position lowered from the illustrated position.

In the illustrated state of the valve 13, the first and second valves are
Equal air pressure is applied to the air-hydraulic converters 8 and 9. To raise the cylinder piston 5 from this state, move the valve 13 all the way to the left, and the air pressure will act on the second air-hydraulic converter 9, causing the pressure oil to close the check valve 12a of the second speed controller 12. Then, it is sent to the lower surface of the piston 15 of the hydraulic cylinder 6. The pressure oil on the upper surface of the piston 15 is released to the atmosphere through the valve 13 of the first air-hydraulic converter 8, so that the pressure oil is transferred to the throttle passage 7b of the first speed controller 7.
It is then discharged. Conversely, when the cylinder piston 5 is lowered, the valve 13 is moved all the way to the right, so that pressure oil is fed into the upper part of the piston 15 and pressure oil from the lower part of the piston 15 is discharged.

Since the first and second speed controllers are provided in the hydraulic passage communicating with the upper and lower parts of the piston 15, the speed is controlled by the first speed controller 7 when the cylinder piston 5 is rising, and by the second speed controller 12 when it is falling. is being carried out. Therefore, although the weight of the bobbin 1 causes a greater force when descending than when ascending, it prevents the bobbin from falling rapidly during descending. In addition, hydraulic pressure does not change volume, so it can be controlled accurately. Then, when the valve 11 is lowered from the state shown in the figure, the flow of oil is stopped and accurate positioning becomes possible. In other words, mechanical inertia can be forcibly stopped.

FIG. 2 shows the bobbin 1 pressed against the underroll 4 at a predetermined pressure, and is in operation;
The air pressure on the first pneumatic-hydraulic converter 8 side is adjusted by the flow rate adjustment section 10b of the speed controller 10, and is kept lower than that on the second pneumatic-hydraulic converter 8 side. By doing so, the respective weights of the bobbin 1 and the pintle 2 can be supported by the hydraulic pressure below the piston 15, and the bobbin can be placed on the under roll 4 without adding its own weight. The bobbin 1 is individually supported on both sides in the axial direction via hydraulic cylinders 6, respectively. On the other hand, the radius of bobbin 1 is originally supposed to be constant, but in reality it deforms during use, so the radius is not exactly constant, and the height of the center of the axis of bobbin 1 is set to under roll 4. It changes when rotated. However, since the weight of the bobbin 1, pintle 2, and cylinder piston 5 is supported by the hydraulic cylinder 6 and the pneumatic section of the air-hydraulic conversion device, the deformation that occurs in the bobbin 1 is easily absorbed. Further, since the pintle 2 rotates integrally with the bobbin 1, the number of rotations can be detected from the rotation of the pintle.

In this way, the bobbin support device of the underroll type winder of this embodiment supports the bobbin on the underroll from both sides through pintles with hydraulic pressure and air oil intervening, so that deformation such as distortion of the bobbin can be avoided. Even if there is a problem, it can be absorbed, smooth rotation can be obtained, and mechanical strength can be increased.

[Effects of the Invention] As described above, the bobbin support device of the underroll type winder of the present invention absorbs deformation such as distortion of the bobbin, provides smooth rotation, and has high mechanical strength. It has the effect that it can.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an embodiment of the bobbin support device of an under-roll type winder according to the present invention, and FIG.
FIG. 2 is an explanatory diagram of the bobbin elevation control device shown in the figure. 1...Bobbin, 1a...Bobbin flange, 2...
... Pintle, 4 ... Under roll, 5 ... Cylinder piston, 6 ... Hydraulic cylinder, 7 ... First speed controller, 7a, 10a, 12a ...
Check valve, 7b, 12b... Throttle passage, 8... First
Pneumatic-hydraulic converter, 9...Second pneumatic-hydraulic converter, 1
0... Third speed controller, 10b... Flow rate adjustment section, 12... Second speed controller,
13...Valve, 14...Pneumatic supply source, 15...
piston.

Claims (1)

[Scope of Claims] 1. In a bobbin support device in which a bobbin flange is brought into contact with the upper outer circumference of an under roll and the bobbin is rotationally driven as the under roll rotates, the shaft portion of the bobbin is connected to a cylinder piston at both sides. A pintle that is driven in the axial direction via a pintle, supported and rotatably disposed, and a piston that adjusts and controls the vertical position of the cylinder piston are built in, and are disposed at the bottom of each of the cylinder pistons. a hydraulic cylinder, first and second pneumatic-hydraulic converters connected in parallel to a pneumatic supply source via a valve, a hydraulic charging section of the first and second pneumatic-hydraulic converters, and a hydraulic cylinder of the hydraulic cylinder. A first check valve and a throttle passage are formed in parallel, each of which is disposed between the upper and lower parts of the piston and is configured to allow only the flow of hydraulic pressure from the pneumatic-hydraulic converter side to the hydraulic cylinder side. , a second speed controller. 2. A check valve and a flow rate adjustment unit configured to allow air to flow only from the valve side to the first pneumatic-hydraulic converter side are arranged in parallel between the first pneumatic-hydraulic converter and the valve. Claim 1 wherein a third speed controller is provided.
A bobbin support device for an under-roll type winder as described in .