JPH0657549A - Spindle device of twisting machine - Google Patents

Abstract

PURPOSE:To obtain a spindle deice of a motor directly drive type having high reliability. CONSTITUTION:An inner power line 4 and an outer power line 11 for driving a motor 12 of a spindle 1 are coupled with a shield connector 10 and an operating part 5 is fixed to a projected part 17a of a housing 17. A single line 6 from the operating part 5 is not passed through the interior of the spindle 1 and wired to a control circuit 7 separately from the power lines 4 and 11. Since penetration of dust into the outside and inside of the spindle and leakage of oil can be prevented, reliability is improved, an inexpensive operating part not taking oil resistance into consideration is sufficiently used and the control circuit hardly receives electromagnetic trouble to better reliability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spindle device for a textile machine such as a ring spinning machine, and more particularly to a direct drive type spindle device for an electric motor.

[0002]

2. Description of the Related Art A spindle is a spindle machine. In a textile machine such as a ring spinning machine, several tens to several hundreds of these spindles are arranged in a line and they are operated at the same time to perform a spindle operation. However, at this time, in the case of an abnormality such as a yarn breakage, it is necessary to stop only the spindle in which the abnormality has occurred and perform necessary processing. Therefore, normally, for each spindle, It is common to have an operating unit for performing an emergency stop and restart. In addition, at this time, in the motor direct drive type spindle, the emergency stop and restart signals from the operation unit are input,
This is also generally configured as a spindle device having a control device for controlling starting and stopping.

[0003] By the way, as a conventional technique of a direct drive type spindle device of an electric motor having an operating portion for controlling the start and stop as described above, for example, SKF, Almanac, September 1991, pp. 96-99 ( S
KF, ALMANAC, 1991.9, PP96-9
9), the operation unit 5 is attached to the side surface of the spindle 1 as shown in FIG. 9, and the signal line 6 from this is driven by the spindle drive inside the spindle 1. It is arranged together with the power line 11 of the electric motor 12 and then taken out from the inside of the spindle 1 and connected to the control circuit 7 by the multi-core cable 14. In FIG. 9, 2 is a bolster (a member in which a bearing for supporting the spindle shaft is built-in), 3 is a nut, 8 is a spindle rail (a member provided in a spinning machine for mounting the spindles in line). , And 9 are spindle axes, and control circuit 7
Are provided in one-to-one correspondence with the spindle 1.

[0004]

The above-mentioned prior art does not take into consideration the fact that the signal line is routed inside the spindle. As a result, (1) the structure of the spindle becomes complicated and the number of assembly steps is increased. Will increase. (2) Along with the spindle outlets for the power line and signal line, the structure where the intrusion of dust and the leakage of oil for bearing lubrication must be prevented not only in the mounting part of the operating part to the spindle. (3) The operating part must have a structure that considers oil resistance so that contact failure does not occur even if the bearing lubricating oil is splashed. There was a problem.

Further, no consideration has been given to the fact that the power line for driving the spindle and the signal line that has passed through the inside of the spindle from the operating section are put together and wired from the spindle to the control circuit. As a result, (4) electromagnetic induction noise is likely to be carried on the signal line, which may cause an operation failure. There was a problem.

The object of the present invention is to have high reliability, mountability,
An object of the present invention is to provide an electric motor direct drive spindle device with good operability at low cost.

[0007]

The above object can be achieved by using the following means. (1) Connect the signal line through the outside of the spindle.

(2) The operating portion is mounted independently of the inside of the housing of the spindle device. (3) Use a shield connector to take out the power line from inside the spindle, and separate the power line inside and outside the spindle. (4) Outside the spindle, wire the power line and signal line separately to the control circuit.

[0009]

[Operation] Since the operation portion is independent of the inside of the housing and the signal line does not pass through the inside of the spindle, (1) the spindle can be easily assembled and handled after the assembly. (2) The operation part can have a structure that does not require consideration of oil resistance. Also, since the relay of the power line inside and outside the spindle can be obtained by the shield connector, (3) oil leakage from the inside of the spindle to the outside and intrusion of dust from the outside of the spindle to the inside are eliminated. Furthermore, since the power line and the signal line are separately wired from the spindle to the control circuit, (4) the risk of operation failure due to electromagnetic induction can be sufficiently suppressed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A spindle device for a textile machine according to the present invention will be described in detail below with reference to the illustrated embodiments. Figure 1
1 is an embodiment of the present invention in which a ring spinning machine is equipped with a spindle device of a motor direct drive type according to the present invention. The spindle 1 has a bolster 2 and a spindle rail 8
After being inserted into a mounting hole provided in the above, it is fixed to the spindle rail 8 by the nut 3, and a plurality of them are mounted side by side in the longitudinal direction of the ring spinning machine which is a direction perpendicular to the paper surface of the drawing. In addition, 18 is a hollow cylindrical member, and the spindle rail 8
Although it is a member for defining the mounting position of the spindle 1 with respect to, it may be formed integrally with the housing 17 instead of being a separate body.

A rotor 12a of an electric motor 12 is rotatably held below the spindle shaft 9 in a mounted state. When electric power is supplied to the stator 12b, the spindle shaft is directly moved by the electric motor 12. It is driven to rotate and winds the yarn. In addition, 19 is a cup-shaped member,
It is attached downwards to the spindle shaft 9 and serves to prevent the entry of wound threads and dust.

The main body of the spindle 1 is provided with a bracket 16 and a housing 17 in which the electric motor 12 is housed, but is located on the outside of the housing 17 in the front surface (the surface to which the operator approaches). Overhanging part 1 on the part
7a is formed, and the operation portion (switch) 5 is attached here. The signal line 6 is directly connected to the control circuit 7 from the operation unit 5. Also, the housing 1
A shield connector 10 is provided on the rear surface (the surface opposite to the overhanging portion 17a) of the motor 7, and the stator 12b of the electric motor 12 is provided.
The power line 11 in the spindle from is connected to the socket side (or plug side) of this shield connector 10, while the external power line 4 from the control circuit 7 is connected to the plug side (or socket side) of the shield connector 10. Power is supplied from the control circuit 7 to the electric motor 12 via the shield connector 10 by the external power line 4 outside the spindle 1 and also by the power line 11 inside.

The control circuit 7 includes a power supply circuit necessary for driving the electric motor 12, and functions to control an emergency stop and a restart of the electric motor 12 according to a signal given from the operation section 4 via the signal line 6. . Therefore, in this embodiment, the external power line 4 for driving the spindle is wired from the control circuit 7 to the rear surface of each spindle, and is routed to the electric motor 12 through the shield connector 10 and the power line 11 inside the spindle. On the other hand, the operating portion (switch) 5 is attached to the spindle 1, but the signal line 6 from the operating portion (switch) 5 does not pass through the inside of the spindle, but the control circuit 7 from the front surface of the spindle.
Will be wired directly to.

As a result, when power supply from the control circuit 7 to the spindle 1 is started, the motor 12 in the spindle 1 rotates the spindle shaft 9 to start the operation of winding the yarn. When a problem such as a yarn breakage occurs during the winding operation of the yarn, the operation of the operation unit 5 can immediately stop the rotation of the spindle shaft 9. After that, when the defect is removed, the operation unit 5 is operated again, the electric motor 12 in the spindle 1 is started, the spindle shaft 9 is raised to a predetermined rotation speed, and the winding operation can be continued.

Therefore, according to this embodiment, the signal line 6
Is wired without passing through the inside of the spindle 1, while the power lines 11 and 4 inside and outside the spindle 1 are joined by the shield connector 10, (1) the spindle structure is simplified, The switch can be easily attached and the number of assembly steps can be reduced. (2) It is not necessary to consider the leakage of oil from the inside of the spindle to the outside and the invasion of dust from the outside of the spindle to the inside. The effect is obtained.

Further, since the signal line 6 from the operating portion 5 does not pass through the inside of the spindle 1, the operating portion 5 is not adversely affected inside the spindle 1 (scattering of bearing lubricating oil, etc.). It is not necessary to have a structure considering oil resistance. (4) Since oil does not enter the contact points of the operation unit 5, contact failure during operation of the operation unit 5 is eliminated. You can also get the effect.

Further, a power line 4 for driving the spindle,
Since the signal lines 6 of the operation unit 5 are separately arranged on the front and rear surfaces of the spindle, (5) there is less risk of the control circuit 7 being electromagnetically disturbed. There is an effect.

Next, the embodiments of the present invention will be described more specifically. FIG. 2 shows an embodiment of a method of mounting the operating portion 5. As described above, the outer frame of the spindle 1 is the bracket 1
6 and a housing 17, and the housing 17 is provided with an overhanging portion 17a.
By a, components inside the spindle 1 (for example, the electric motor 1
The width a × without affecting the stator 12b) of the second dimension.
A rectangular space S having an open lower part of the depth b × height c is formed. In addition, if the rectangular space S does not have a dimensional effect on the components inside the spindle 1,
The shape is not limited to a rectangular parallelepiped, and may be a space of any shape.

The height dimension c may be equal to the height dimension e of the housing 17 so that the space S is opened not only below the housing 17 but also above. Next, the overhanging portion 17a is provided with a round hole having a diameter d, a rectangular hole, or a notch for attaching the operating portion 5.

Next, FIG. 3 shows an embodiment of a method for fixing the operating portion 5 in the embodiment shown in FIG. 2. First, as shown in FIG. 3 (b), the movable portion 15 comprising, for example, a push button or the like. When,
In the operation portion 5 including the other fixed portion, the fitting projection 20 is provided in the portion having the dimension d of the fixed portion, and then the round hole having the diameter d provided in the housing 17 or As shown in (a) of the figure, the operating portion 5 is pushed into the notch with the movable portion 15 facing toward the notch, and is fitted and attached.

FIG. 4 shows another embodiment of a method of fixing the operating portion 5. In this embodiment, as shown in FIG. 4 (b), first, a male screw 21 for mounting is cut on the operating portion 5. On the other hand,
A female screw is cut in the round hole of the housing 17. Then, as shown in FIG. 7A, they are fixed by screwing. In the embodiments of FIGS. 3 and 4, as is apparent from FIG. 2, the signal line 6 is guided from the front surface to the rear surface at the lower portion of the spindle 1 and is connected to the control circuit 7 from here. However, as in the embodiment of FIG. 1, the control circuit 7 may be directly guided from the front side.

Next, referring to FIG.
A groove 13 having a width f and a depth g so as not to reach the inside of the spindle is provided, and the signal line 6 from the operating portion 5 is accommodated in the groove 13 and fixed by the fixing member 13a. . Therefore, the feature of the embodiment shown in FIG. 5 is that when the spindle 1 is mounted on the spindle rail 8, it is possible to eliminate the possibility that the signal line 6 is erroneously sandwiched between the spindle 1 and the spindle rail 8. That is, the signal line 6 can be easily guided to the rear surface of the spindle 1 without using the hollow cylindrical member 18.

Next, another embodiment of the present invention will be described. First, in the embodiment shown in FIG. 6, the operating portion 5 is arranged on the upper surface of the spindle 1. Specifically, the protrusion 16a is formed on the bracket 16, and the operating portion 5 is formed in this portion.
Is attached. Next, in the embodiment shown in FIG. 7, the operating portion 5 is attached to the lower portion of the spindle rail 8, and specifically, a downwardly projecting portion 8a is formed on the spindle rail 8 and the operating portion 5 is operated at this portion. The part 5 is attached. In the embodiment shown in FIG. 8, the operation unit 5 is arranged on the floor, and a foot-operated switch or the like is used as the operation unit 5 so that the operation unit 5 can be operated by the foot.

In the embodiments shown in FIGS. 6, 7, and 8, when the operation unit 5 is attached to the front surface of the spindle 1 such as when another mechanism in the textile machine is arranged on the front surface of the spindle 1, the operation unit 5 is installed. It is suitable for cases where the workability of item 5 deteriorates.

Therefore, the present invention also includes the following embodiments. (1) A textile machine comprising a plurality of sets of spindle devices each having an electric motor for directly rotating and driving a spindle shaft, a control circuit for driving and controlling the electric motor, and an operation unit for inputting a control signal to the control circuit. A housing is provided with a shield connector, and a power line is connected between the electric motor and the control circuit via the shield connector, and a signal line from the operation unit to the control circuit is connected to the outside of the spindle. A spindle device for a textile machine, which is characterized in that

(2) In a textile machine provided with a plurality of sets of spindle devices each having an electric motor for directly rotating and driving a spindle shaft, a control circuit for driving and controlling the electric motor, and an operating section for inputting a control signal to the control circuit. In the textile machine, the arrangement of the signal line extending from the operation unit to the control circuit is separated from the power line, and the signal line extending from the operation unit to the control circuit is arranged outside the spindle. Spindle device.

(3) In a textile machine provided with a plurality of sets of spindle devices having an electric motor for directly rotating and driving a spindle shaft, a control circuit for driving and controlling the electric motor, and an operating section for inputting a control signal to the control circuit. , A housing containing the electric motor is provided with a mounting member having a space portion independent of the inside thereof, the operation portion is mounted in the space portion of the mounting member, and a signal line from the operation portion to the control circuit is connected. A spindle device for a textile machine, which is arranged outside the spindle.

(4) In a textile machine provided with a plurality of sets of spindle devices each having an electric motor for directly driving the spindle shaft, a control circuit for driving and controlling the electric motor, and an operation section for inputting a control signal to the control circuit. A spindle device for a textile machine, wherein the operation portion is provided on a floor surface below a mounting position of each spindle device, and a signal line from the operation portion to the control circuit is arranged outside the spindle.

(5) In a textile machine provided with a plurality of sets of spindle devices each having an electric motor for directly rotating and driving a spindle shaft, a control circuit for driving and controlling the electric motor, and an operation section for inputting a control signal to the control circuit. A mounting member for the operating portion is provided on a spindle rail to which the plurality of sets of spindle devices are mounted, and a signal line from the operating portion mounted on the mounting member to the control circuit is arranged outside the spindle. Spindle device for textile machinery.

(6) In a textile machine provided with a plurality of sets of spindle devices each having an electric motor for directly driving the spindle shaft, a control circuit for driving and controlling the electric motor, and an operation section for inputting a control signal to the control circuit. A spindle device for a textile machine, wherein an operating section is provided on the upper surface of the spindle, and a signal line from the operating section to the control circuit is provided outside the spindle.

[0031]

The present invention has the following effects. First of all, since the shielded connector can be used at the spindle outlet of the power line without passing the signal line from the operation section inside the spindle, (1) the spindle structure can be simplified and the number of assembly steps can be reduced. The cost can be reduced. (2) Oil leakage from the inside of the spindle to the outside and intrusion of dust from the outside of the spindle to the inside are eliminated, and reliability can be improved at low cost. (3) Oil does not enter the contact points of the operating section, and there is no need to have a structure that takes oil resistance into consideration. In addition, contact failure during operation of the operating section is eliminated, further improving reliability at low cost. You can

Further, since the power line for driving the spindle and the signal line between the control circuit and the operating section are separately arranged on the front and rear surfaces of the spindle, (4) electromagnetic interference to the control circuit is reduced and reliability is improved. Is improved.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment in which a spindle device for a textile machine according to the present invention is mounted on a ring spinning machine.

FIG. 2 is a side view with a partial cross section showing another embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an example of a method of attaching the operation unit according to the present invention.

FIG. 4 is an explanatory view showing another embodiment of the method of attaching the operation portion according to the present invention.

FIG. 5 is a bottom view showing an embodiment of the present invention.

FIG. 6 is a side view showing an embodiment of the present invention.

FIG. 7 is a side view showing another embodiment of the present invention.

FIG. 8 is a side view showing still another embodiment of the present invention.

FIG. 9 is a side view showing a conventional example of an electric motor direct drive type spindle device.

[Explanation of symbols]

 1 Spindle 2 Bolster 3 Nut 4 External power line for driving spindle 5 Operating part (switch) 6 Signal line of operating part 7 Control circuit 8 Spindle rail 8a Projection 9 Spindle shaft 10 Shield connector 11 Internal power line for spindle drive 12 Electric motor 12a Electric motor rotor 12b Electric motor stator 13 Groove 13a Fixing member 14 Multi-core cable 15 Switch movable part 16 Bracket 16a Projecting part 17 Housing 17a Overhanging part 18 Hollow cylindrical member 19 Cup-shaped member 20 Projection 21 Male screw

Claims (1)

[Claims] 1. A spindle device for a textile machine, comprising: an electric motor for directly rotating and driving a spindle shaft; a control circuit for driving and controlling the electric motor; and an operating unit for inputting a control signal to the control circuit. A spindle device for a textile machine, wherein a signal line from the control circuit to the control circuit is arranged outside the spindle.