JPS6216990A - Bobbin support device in under-roll type winding machine - Google Patents

Abstract

PURPOSE:To achieve smooth operation by arranging a first and a second speed controllers, each having a reverse check valve and a throttle passage in parallel, respectively between oil pressure plenum chambers of a first and a second oil-air pressure switching devices and upper and lower sides of a piston of a hydraulic cylinder. CONSTITUTION:When a valve 13 is moved to the left, air pressure acts on a second air-oil pressure switching device 9, pressure oil is sent via a reverse check valve 12a of a second speed controller 12 to the lower side of a piston 15 of a hydraulic cylinder 6 and pressure oil on the upper side of the piston is returned via a throttle passage 7b of a first speed controller 7 to a first air-oil pressure switching device 8. For lowering the piston 15, the valve 13 is moved to the right. When holding a bobbin 1 between a cylinder piston 5 and a pintle 2 and making the bobbin rotate by pressing it against an under-roll 4, the holding force is to be adjusted at a flow rate adjustment section 10b of a third speed controller 10. Thus, smooth operation can be achieved even in case of deformation of a bobbin.

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 type winding devices, in which the bobbin flange is brought into contact with the upper outer periphery of the under-roll and the bobbin is driven to rotate as the under-roll rotates, the bobbin is supported from above in order to prevent the bobbin from flying out. There is. The conventional fixing method using a bobbin shaft includes a method using a shaft, but it cannot cope with deformation such as distortion of the bobbin, and there is a need to allow the shaft to move freely. Further, there is a method of fixing the shaft with a pintle to omit the work of inserting the shaft, but this method cannot cope with deformation such as distortion of the bobbin like the shaft. 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 is not sufficient and it is easy to break. It had the disadvantage that it could not provide sufficient pressing strength for the bobbin.

The present invention has been made in view of the above-mentioned circumstances, and provides a bobbin support for an Angroll type winder that can absorb deformation such as distortion of the bobbin, provide smooth rotation, and increase mechanical strength. The purpose of this is to provide equipment.

[Summary of the Invention] The bobbin support device of the Angroll type winder of the present invention has the following features:
A bobbin flange is brought into contact with the outer periphery of the Angroll so that the bobbin is rotationally driven as the Angroll rotates, and the shaft portion of the bobbin is moved in the axial direction through cylinder pistons at both sides. a pintle that is driven, clamped, and rotatably disposed; and a hydraulic cylinder that is disposed at the bottom of each of the cylinder pistons and has a built-in piston that adjusts and controls the vertical position of the cylinder piston; The first one is connected in parallel to the pneumatic supply source through a valve. a second air-hydraulic conversion device; The hydraulic filling part of the second air-hydraulic conversion device and the upper and lower portions of the piston of the hydraulic cylinder are respectively disposed to allow hydraulic pressure to flow only from the air-pressure conversion device side to the hydraulic cylinder side. The first valve has a check valve and a throttle passage formed in parallel. A second speed controller is 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 Figure 1, 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 ang 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 under roll 4, and is rotated by the rotation of the under roll 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 angle roll 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.

1st. The second pneumatic-hydraulic converters @8 and 9 each have a pressure oil filling section formed at the lower part thereof, and the upper pneumatic section is communicated with the pneumatic supply source 14 through the valve 13.

Reference numeral 10 denotes a third speed controller, which includes a check valve 10a that allows air to flow from the valve 13 side and blocks a flow in the opposite direction to this flow, and a flow rate adjustment section 10b, which are formed in parallel; 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. The second speed controller 12 is provided with a check valve 12a and a throttle passage 12b which are arranged in parallel to prevent the hydraulic pressure from flowing in the opposite direction to this flow. Further, the valve 13 is in the first position as shown in the figure. The left and right connecting ends 14a and 14b of the pneumatic pressure supply source 14 are connected to the second pneumatic-hydraulic converter 8.9, respectively, so that the pressure is equal.

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 designed to be communicated with. Also,
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 converter @9 is opened to the atmosphere via the valve 13. It has become. 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. Equal air pressure is applied to the second air-hydraulic converter 8.9. When raising the cylinder piston 5 from this state, the valve 1
3 is moved all the way to the left, the air pressure acts on the second air-hydraulic conversion device 9, and pressure oil is sent to the lower surface of the piston 15 of the hydraulic cylinder 6 via the check valve 12a of the second speed controller 12. The pressure oil on the upper surface of the piston 15 is discharged through the throttle passage 7b of the first speed controller 7 because the first air-hydraulic converter 8 is released to the atmosphere through the valve 13. Conversely, when lowering the cylinder piston 5, if the valve 13 is moved all the way to the right, the piston 1
Pressure oil is sent to the upper part of the piston 5, and pressure oil to the lower part of the piston 15 is discharged.

In this way, the first hydraulic passage communicating with the upper and lower parts of the piston 15 is connected to the first hydraulic passage. Since the second speed controller is provided, when the cylinder piston 5 is rising, the first speed controller 7
Therefore, when descending, the second speed controller 12 performs speed control. 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 state in operation, in which the bobbin 1 is pressed against the under roll 4 at a predetermined pressure. The pressure is reduced to be lower than that on the second air-hydraulic conversion device 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 Angroll 4-height bobbin can be placed 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 supposed to be constant, but
In reality, the radius is not exactly constant due to deformation during use, and the height of the axial center of the bobbin 1 changes when the bobbin 1 is driven to rotate by the under roll 4. However, bobbin 1
．． Since the weight of the pintle 2 and the cylinder piston 5 is supported by the hydraulic cylinder 6 and the pneumatic section of the air-hydraulic converter, deformation occurring 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 under-roll type winder of this embodiment supports the bobbin on the under-roll from both sides through hydraulic pressure and pneumatic pressure through pintles, so that deformation such as distortion of the bobbin can be avoided. Even if there is a problem, this can be absorbed, smooth rotation can be obtained, and mechanical strength can be increased.

[Effect of the invention J 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 a bobbin support device for an under-roll type winder of the present invention, and FIG. 2 is an explanatory diagram of the bobbin elevation control device of FIG. 1. 1...Bobby. 1a...Bobbin flange. 2...Pintle. 4... Andalol. 5...Cylinder piston. 6... Hydraulic cylinder. 7...First speed controller. 7a, 10a, 12a--Check valves. 7b, 12b... Throttle passage. 8...First air-hydraulic conversion device. 9...Second air-hydraulic conversion device. 10...Third speed controller. 10b...Flow rate adjustment section. 12...Second speed controller. 13... Valve. 14...Pneumatic supply source. 15... Piston. Agent Patent Attorney Fujio Sagi Sato 1 Illustration 2 Mouth

Claims (2)

[Claims] (1) In a bobbin support device in which a bobbin flange is brought into contact with the upper outer periphery of an under roll and the bobbin is rotationally driven as the under roll rotates, the shaft portion of the bobbin is moved in the axial direction through cylinder pistons at both sides. A hydraulic cylinder is provided at the bottom of each of the cylinder pistons, and includes a pintle that is driven by the cylinder piston and is supported and rotatably arranged, and a piston that adjusts and controls the vertical position of the cylinder piston. , first and second pneumatic-hydraulic converters connected in parallel to a pneumatic supply source via a valve, hydraulic charging portions of the first and second pneumatic-hydraulic converters, and upper and lower portions of the piston of the hydraulic cylinder. first and second speeds, each of which has a check valve and a throttle passage formed in parallel, each of which is disposed between the air-hydraulic converter and allows hydraulic pressure to flow only from the pneumatic-hydraulic converter side to the hydraulic cylinder side; A bobbin support device for an underroll type winder, characterized in that it is provided with a controller. (2) A check valve and a flow rate adjustment unit are arranged in parallel between the first pneumatic-hydraulic converter and the valve, which are formed to allow air to flow only from the valve side to the first pneumatic-hydraulic converter side. 2. A bobbin support device for an under-roll type winder according to claim 1, further comprising a third speed controller disposed in said bobbin support device.