JPH0532542Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a lifting device for raising and lowering ring rails, rappet angles, etc. in spinning machines such as ring spinning machines and ring twisting machines.

(Prior art) In general, in this type of spinning machine, in order to form a pipe yarn, the ring rail is gradually raised while repeating the raising and lowering movement of the ring rail while the machine is in operation. A lifting device is also used to raise and lower the equipment. Conventional lifting devices are, for example,
As shown in Publication No. 29214, the movement of the lever by the heart cam is the basis, and the lifting of the ring rail etc. is carried out actively by the displacement of the cam.
The lowering was carried out passively by the weight of the ring rail.

(Problems to be solved by the invention) In the conventional device, when the lifting speed of the ring rail increases, the movement of the ring rail cannot follow the displacement curve of the cam at the point where it changes from rising to falling, and the movement is short. This causes a so-called "breathing" phenomenon in which the fibers temporarily stop, often causing disturbances in the formation of the tube and thread. In particular, if fluff or the like accumulates on the poker pillars of the ring rail during operation, this phenomenon tends to be exacerbated by the frictional resistance.

Structure of the invention (means for solving the problem) In order to solve the above problem, in this invention, a screw part is provided on the lower outer periphery of the poker pillar that supports the ring rail etc., so that it can be rotated freely at a predetermined height position. The spoke pillar is supported with its screw portion screwed into a disposed nut body, and an operating member that is reciprocated by a drive means is provided extending along the longitudinal direction of the machine machine, and at least the nut of the operating member A rack was provided at a position corresponding to the body, and a pinion was provided which meshed with the rack and rotated the nut body by its rotation.

(Function) In this invention, when the actuating member extending along the longitudinal direction of the machine is reciprocated by the driving means, the nut body is rotated forward or Driven in reverse. When the nut body is rotated in the normal direction, a poker pillar supporting a ring rail or the like whose screw portion is screwed into the nut body moves upward, and when the nut body is driven in the reverse direction, the poller pillar moves downward. The amount of movement of the poker pillar is determined by the amount of rotation of the nut body, that is, the amount of movement of the actuating member, and the amount of movement of the poker pillar is changed by changing the stroke amount of the actuating member. The poker pillar is actively driven via the nut body either when rising or falling.

(Example 1) The first example that embodies this idea will be described below.
This will be explained according to Figures 3 to 3. As shown in FIG. 3, a poker pillar 3 supporting a ring rail 2 is supported on the spindle rail 1 via a slide guide 4 so as to be slidable in the vertical direction. At a lower position of the spindle rail 1 corresponding to the slide guide 4, a nut body 5 is rotatably supported by a bearing 6 on its upper outer periphery. A screw portion 3a formed at the lower part of the poker pillar 3 is screwed into the nut body 5, and the poker pillar 3 is moved up and down by forward and reverse rotation of the nut body 5. Further, a poker pillar 8 supporting the rappet angle 7 is supported so as to be slidable in the vertical direction with respect to the machine frame via a slide guide (not shown). The screw portion 8a of the poker pillar 8 is screwed into a nut body 9 rotatably supported by the frame via a bearing (not shown).

An actuating member 10 is provided on the outside of the spindle rail 1 and extends along the longitudinal direction of the machine, that is, parallel to the spindle rail 1, so as to be movable along the longitudinal direction. A rack 11 is fixed to the operating member 10 at a position corresponding to the nut body 5, and a pinion 1 that meshes with the rack 11 is attached to the lower end of the nut body 5.
2 is fitted and fixed to the nut body 5 so as to be able to rotate integrally therewith. Further, the pinion 12 is attached to the nut body 9.
A pinion 13 that meshes with the nut body 9 is fitted and fixed so as to be able to rotate integrally with the nut body 9, so that the nut body 5 and the nut body 9 are driven to rotate in mutually opposite directions. Since the poker pillar 3 and the poker pillar 8 can be moved up and down integrally, the screw portion 3
The directions of the screws a and 8a are opposite to each other.

A driving means 15 for reciprocating the actuating member 10 is disposed between the front roller 14 and the actuating member 10. The driving means 15 rotates the front roller 14 through a gear train 16 and a forward/reverse rotation conversion mechanism 1.
7 and a rotating shaft 18 driven through the rotating shaft 18.
a drive shaft 21 on which a worm wheel 20 is fitted and fixed, which meshes with a worm 19 fitted and fixed on the drive shaft 21;
It is composed of a pinion 22 that is fitted and fixed to both ends of the drive shaft 21 and meshes with a rack 23 provided at the end of the actuating member 10.
8, the pinion 22 and rack 23 are rotated forward and backward.
The actuating member 10 is reciprocated via the . The forward/reverse rotation conversion mechanism 17 is a gear train 2 disposed between an intermediate shaft 25 and a rotating shaft 18 to which the rotation of the gear train 16 is transmitted via a belt transmission mechanism 24.
6, 27, and an ascending clutch MC1 and a descending clutch MC2 which connect and disconnect transmission of the gear trains 26, 27 to the rotating shaft 18. A rotary encoder 28 is attached to the end of the rotating shaft 18 to detect the number of rotations of the rotating shaft 18. The output of the rotary encoder 28 is input to a control device (not shown), and the control device excites and demagnetizes both clutches MC1 and MC2 based on the output signal from the rotary encoder 28 in accordance with the spinning conditions of the machine.

Next, the operation of the apparatus configured as described above will be explained. As the machine starts, the ascending clutch MC1 and descending clutch are activated based on the signal from the control device.
MC2 is alternately excited and demagnetized, and the rotating shaft 1
8 is rotationally driven in the forward or reverse direction. When the lifting clutch MC1 is energized, the rotating shaft 18 is rotated in the forward direction via the gear train 26, and the operating member 10 is rotated via the worm 19, worm wheel 20, drive shaft 21, pinion 22, and rack 23.
is moved back and forth. The forward movement of the actuating member 10 rotates the nut body 5 in the normal direction via the rack 11 and pinion 12, and also rotates the nut body 9 via the pinion 13.
is rotated in the opposite direction. As a result, the spoke pillars 3 and 8 move upward together with the ring rail 2 and the lappet angle 7 by the action of the screw portions 3a and 8a which are threadedly engaged with the nut bodies 5 and 9. or,
By demagnetizing the ascending clutch MC1 and energizing the descending clutch MC2, the rotary shaft 18 is driven in the reverse direction via the gear train 27, and the actuating member 10 is moved back in the opposite direction to the nut body 5. , 9 are rotated in the opposite direction to the above, and the poker pillars 3 and 8 are connected to the ring rail 2 and the lappet angle 7.
and move downward together. In other words, both clutches
The operating member 10 corresponds to the excitation and demagnetization of MC1 and MC2.
is moved forward or backward, and the ring rail 2 and rappet angle 7 rise and fall together with the poker pillars 3 and 8 in response to the forward and backward movements of the actuating member 10.

The amount of elevation of the ring rail 2, that is, the amount of movement of the poker pillar 3 is proportional to the amount of movement of the actuating member 10, and the amount of movement of the actuating member 10 corresponds to the amount of rotation of the rotating shaft 18. Therefore, the control device outputs an output from the rotary encoder 28. The number of pulses is counted, and when the number of pulses becomes equal to the amount of rise or fall of the ring rail inputted in advance as a building condition, a signal for excitation and demagnetization of both clutches MC1 and MC2 is output, and The ring rail 2 and the like are moved up and down in accordance with the specified conditions.

(Example 2) Next, a second example will be described with reference to FIGS. 4 and 5. In this embodiment, the structure of the driving means 15 is different from the apparatus of the previous embodiment. As shown in Fig. 4, the guide rod 2 extends along the longitudinal direction of the machine base.
One end of a lever 32 rotatably supported around a support shaft 31 is operatively connected to a slider 30 that slides along a slider 30 , and a link 33 is attached to the other end of the lever 32 .
The actuating member 10 is connected via. A belt transmission mechanism 2 is connected to the slider 30 from the front roller.
A cam follower 37 contacts a cam 36 that is rotatably supported integrally with and movably in the axial direction of the rotating shaft 35, to which the rotation of the intermediate shaft 25 is transmitted via the gear train 34. is fixed. The rotary shaft 35 has a cam 3 for feeding the separator.
8 is rotatably supported via a bearing 39, and the intermediate shaft 25 is attached to the saper feeding cam 38.
The rotation of the worm 40, the worm wheel 41,
The signal is transmitted via a reduction gear 42 and bevel gears 43 and 44. Further, the cam 36 is always urged toward the saper feeding cam 38 by a spring 45, and a cam follower 46 movably supported along the rotating shaft 35 comes into contact with the cam 36 via a thrust bearing (not shown). Movement in the direction of the rotation axis is regulated. Therefore, in this device, the rotation of the intermediate shaft 25 is transmitted to the rotating shaft 35 via the gear train 34, and the rotation of the intermediate shaft 25 is transmitted to the rotating shaft 35 through the gear train 34.
6 rotates integrally with the rotating shaft 35 in a fixed direction, the slider 30 is reciprocated, and the lever 32
The actuating member 10 is reciprocated via the link 33. As the actuating member 10 reciprocates, the nut bodies 5 and 9 are reciprocated via the rack 11 and pinions 12 and 13 in the same manner as described above, and the poker pillars 3 and 8 are moved up and down accordingly. On the other hand, the intermediate shaft 25
The rotation of the saper feed cam 38 is transmitted to the saper feed cam 38 via the worm 40, the speed reducer 42, etc.
5, the cam 36 gradually moves to the left in FIGS. 4 and 5, and the cam 36 is moved to the left in FIGS.

Note that this invention is not limited to the two embodiments described above; for example, as shown in FIG. The cylinder 4
The actuating member 10 may be directly connected to the piston rod 47a of the actuating member 10, or belts 48, 49 may be fixed to both ends of the actuating member 10 as shown in FIG.
Pulleys 50 and 5 each having one end of 49 wound around
1 may be rotationally driven by cylinders 52 and 53. Also, instead of transmitting the rotation of the front roller 14 through the gear train 16 as a drive source for the intermediate shaft 25, an independent motor is used to directly transmit the rotation of the intermediate shaft 25.
5 may be driven to rotate.

Effects of the invention As detailed above, according to this invention, both the raising and lowering of the ring rail etc. are performed by the operating member 10.
This is done actively in response to the forward and reverse rotation of the nut body due to the reciprocating movement of the lifting device, so the operation is reliable and, unlike conventional cam-type lifting devices, there is no breathing phenomenon even during high-speed operation, which is an excellent effect. .

[Brief explanation of the drawing]

Figures 1 to 3 show a first embodiment of this invention, with Figure 1 being a schematic perspective view and Figure 2 being a schematic perspective view.
The figure is a partial plan view, Figure 3 is a sectional view showing the support state of the poker pillar and nut body, and Figures 4 and 5 are the second
Fig. 4 is a plan view of the driving means, Fig. 5 is a cross-sectional view showing the supporting state of the cam and the saper feeding cam, Fig. 6 is a perspective view of the main part of a modified example, and Fig. 6 is a plan view of the driving means. FIG. 7 is a perspective view of another modification. Ring rail...2, Polka pillar...3,
8, Screw part...3a, 8a, nut body...
5, 9, Operating member...10, Rack...11, Pinion...12, 13, Drive means...15, Ascending clutch MC...1, Descending clutch MC...
2.

Claims (1)

[Scope of utility model registration request] A screw part is provided on the lower outer periphery of a poker pillar that supports a ring rail, etc., and the screw part is screwed into a nut body rotatably disposed at a predetermined height position to support the poker pillar and reciprocate by a driving means. A pinion that extends along the longitudinal direction of the machine base, and that a rack is provided on the operating member at least at a position corresponding to the nut body, and that engages with the rack and rotates the nut body by rotation of the rack. A lifting device for a spinning machine equipped with a