JPH0116776Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field This invention is a work machine that can be used as a predetermined work machine for work machines such as a thread changing machine, a pipe changing machine, and a yarn splicing machine that run along the front of the machine frame of spinning machines such as spinning frames and roving frames. The present invention relates to a positioning device for a working machine such as a spinning machine for accurately positioning a machine at a working position.

Prior art and its problems As a conventional device of this type,
As shown in the publication, the doffing machine is equipped with a driven shaft that is rotated by a drive shaft through a pair of intermittent gears, and a peripheral cam is provided with a groove on the peripheral edge of the driven shaft. There is one in which a groove on the peripheral cam is provided with a latch-shaped development surface at the rotation start part of the groove on the peripheral cam, and the groove engages with a boat-shaped pawl provided on the machine base. However, in the above device, the peripheral cam is attached to the driven shaft that is rotated by the drive shaft for travel via the intermittent gear, so if the peripheral cam interferes with the boat-shaped pawl, there is a risk of damaging the intermittent gear, etc. There is,
In addition, even if the doffing machine goes too far beyond the predetermined stop position and the groove comes off the boat-shaped claw, the peripheral cam rotates on the side of the boat-shaped claw in the same way as in the normal state, and as a result, the doffing machine There was a major problem in that the equipment could be damaged due to operational errors.

Furthermore, as shown in Japanese Patent Publication No. 45-1293, an engaging member having an engaging groove is attached to the main body of the work machine so as to be able to slide up and down, and a rack provided on this engaging member is rotated by a motor. It is known that the spinning machine is engaged with a pinion, and the engaging member is raised by the rotational drive of the motor, so that the engaging groove is engaged with the engaging protrusion (guide pin) of the guide rail of the spinning machine. However, in this device, the engaging member is slid up and down by a pinion, so the sliding part of the engaging member may become clogged with fluff, making the sliding of the engaging member uneven. This can easily cause failures, and like the one described in the above-mentioned Japanese Patent Publication No. 40-3614, even when the working machine has moved too far and the engaging groove does not engage with the engaging protrusion, it is the same as when it is normal. There was a problem with the unit operating incorrectly and causing major trouble.

In addition, as shown in Japanese Utility Model Publication No. 55-31019, the main body of the work machine is provided with a traveling cylinder that is swung by an elevating cylinder, and the piston rod of the traveling cylinder is provided with a fitting member having a fitting groove. There has also been proposed a system in which the fitting groove is engaged with a fitting pin (guide pin) of a guide rail by alternately operating the lifting cylinder and the lifting cylinder to move and position the working machine. However, with this device, when moving the work equipment over large distances, the travel cylinder becomes longer, making the work equipment larger, making it run less smoothly, and, like the above two devices, it becomes difficult to move the work equipment. There was a problem in which it was not possible to reliably confirm that the stopping position of the aircraft had shifted.

Purpose and Overview The purpose of this invention is to solve the above-mentioned problems with the conventional device.It is possible to position the work equipment smoothly and stably over a long period of time, and to prevent the work equipment from shifting its stopping position. This system provides a positioning device for work machines such as spinning machines that can reliably confirm that positioning is impossible by using the machine body. The positioning drum is rotatably supported around an axis in the running direction, and one fitting groove with an enlarged entrance that can fit a guide pin is provided on the outer periphery of the positioning drum, and the positioning drum and work machine are It is characterized in that a rotatable positioning cylinder is interposed between the main bodies at a standby position where the positioning drum is disengaged from the guide pin and at a positioning operation position where the positioning drum is fitted into the guide pin.

Embodiment In FIG. 1, 1 is a well-known spinning machine exemplified as a spinning machine, in which 2 is a frame, 3 is a spindle rail, and 4 is a spindle. At the top of the front of the machine stand 2, there is a horizontal upper guide rail 5.
are attached along the entire length of the machine, and on the outer surface of this upper guide rail 5, there are many guide pins 6 spaced at intervals equal to the pitch spacing of the front row bobbin hanger (not shown) of the creel, that is, 2 spindle pitch spacing. It is planted. Further, a lower guide rail 7 for regulating inclination is provided at the lower front of the machine base 2 over the entire length of the machine base.

Next, reference numeral 10 denotes a Shino exchange machine, which is an example of a working machine that is attached to the front of the machine base 2 so that it can run along the front of the machine base, and the small bobbin 8 inserted into the front row bobbin hanger and the spare bobbin hanger ( This is for replacing the full bobbins inserted in the bobbin (not shown) three by three. Next, as shown in FIGS. 1 and 2, a pair of upper guide rollers 12 are rotatably attached to the main body 11 of the Shino exchanger 10 on the side plate 11a on the machine base side.
2 is placed on the upper guide rail 5. Among these upper guide rollers 12, the upper guide roller 12 on the forward side (left side in FIG. 2) is connected to a drive shaft 13a of a travel motor 13 with a brake attached to the main body 11, and is connected to the drive shaft 13a of the drive shaft 13a. Shino exchanger 1 due to rotation in the direction
0 is made to run toward the left in FIG. The traveling motor 13 is driven to rotate by the ON operation of the start switch and a signal for completing the replacement operation, and is stopped when a stop cam (not shown) provided on the main body 11 is detected. Also, a pair of lower guide rollers 14 are provided at the bottom of the machine side side plate 11a.
are rotatably mounted, and these lower guide rollers 14 abut against the lower guide rail 7 to maintain the Shino exchanger 10 in a vertical position. On the bottom of the main body 11 is a Shino exchanger 10.
A wheel device 15 is provided to support the weight of the vehicle, but this wheel device 15 is substantially the same as that disclosed in Japanese Patent Publication No. 57-43499, and its explanation will be omitted here.

Further, the main body 11 is equipped with a Shino exchange device 16 for exchanging the small bobbin 8 of the front row bobbin hanger with a full bobbin of the spare bobbin hanger.
Since this Shino exchange device 16 is not the subject of this application, its explanation will be omitted.

Next, the Shino exchanger 10 is attached to the machine base 2 in the main body 11.
A positioning device 18 is provided for accurately positioning at a predetermined front replacement work position. This positioning device 18 is constructed as shown in FIGS. 3 and 4, and is configured to perform positioning using the guide pins 6 of the upper guide rail 5. In this positioning device 18, 19 is a cutout window formed in the side plate 11a of the main body 11 on the side of the machine, and is opened at a height position facing the upper guide rail 5. Side plates 11a on both left and right sides of this notch window 19
Bearings 20, 20 are fixed to the inner surfaces, respectively.
A positioning drum 21 is attached to these bearings 20, 20.
Both ends of the drum shaft 21a are rotatably supported around an axis in the running direction, and movement in the axial direction is restricted. The positioning drum 21 is formed into a substantially semi-cylindrical shape by integrally fixing a semi-cylindrical cam body 21b to the semi-circumferential surface of a drum shaft 21a. As shown, a planar V-shaped guide groove 22a that widens toward one end in the rotation direction and a cylindrical cam body 21 continuous to the base of the guide groove 22a.
Positioning groove 22b formed across the other end of b
A fitting groove 22 is formed. The length L of the cylindrical cam body 21b in the drum axis direction is at least longer than the mounting interval 2P of the guide pins 6. Further, as shown in FIG. 4, the cylindrical cam body 21b is located inside the main body from the notch window 19 in the standby position, and the fourth
When rotated clockwise in the figure, it projects out of the main body 11 through the cutout window 19 and is configured so that the fitting groove 22 can be engaged with the guide pin 6 of the upper guide rail 5. A pinion 23 is fixed to the end of the drum shaft 21a.
3 is meshed with a sector gear 25 pivotally mounted on a bracket 24 provided on the side plate 11a. This sector gear 25 is formed with an operating arm 26 that protrudes toward the outer circumference. 27 is a positioning cylinder using hydraulic pressure, and the end of the cylinder body 27a is connected to the body 1.
1, and its piston rod 27b is rotatably connected to the operating arm 26. This positioning cylinder 27 normally has its piston rod 27b positioned at the backward end and rotates the cylindrical cam body 21b to the standby position, and when the Shino exchanger 10 is stopped at the working position, the piston rod 27b is positioned at the forward end. The cylindrical cam body 21b is moved protrusively and rotated to the positioning operation position, so that the positioning groove 22b is engaged with the guide pin 6.

Next, a description will be given of the positioning operation of the Shino exchanger 10 when performing Shino exchange work using the Shino exchanger 10 having the above configuration. First, a worker manually moves the Shino exchanger 10 placed at a predetermined position in the factory to one end of the spinning machine, and places the upper guide roller 12 of the Shino exchanger 10 on the upper guide rail 5. At the same time, the lower guide roller 14 is brought into contact with the lower guide rail 7 to be attached to the spinning machine as shown in FIG. In this state, the Shino exchanger 10 is maintained in a vertical position. Next, when the worker turns on the start switch, the travel motor 1
3 is rotationally driven to move the Shino exchanger 10 along the front surface of the machine base 2 toward the other end. When the machine travels to a position a certain distance before the predetermined Shino exchange work position, the limit switch detects the stop cam, the rotational drive of the travel motor 13 is stopped, and the travel of the Shino exchange machine 10 is stopped. Next, when a certain period of time has passed after the travel motor 13 is stopped, the positioning cylinder 27 of the positioning device 18 is activated and the piston rod 27b is projected to the forward end, thereby rotating the sector gear 25 and moving the positioning drum 21 to the fourth position. Rotate approximately 180 degrees clockwise in the figure to position it at the positioning operation position. As a result, the cylindrical cam body 21b of the positioning drum 21 is attached to the side plate 11.
The main body 11 is moved so that the guide groove 22a of the fitting groove 22 protrudes outside the main body 11 from the notch window 19 of a and engages with the guide pin 6 of the upper guide rail 5, and the guide pin 6 moves toward the positioning groove 22b. Then, the positioning groove 22b engages with the guide pin 6 to accurately position the Shino exchanger 10 in the running direction at a predetermined working position and fix it at that position. When performing the above positioning, the cylindrical cam body 2
1b is formed to be longer than the interval between the guide pins 6, so even if the cylindrical cam body 21b comes out of the position facing the guide pin 6 due to the Shino exchanger 10 going too far beyond the predetermined stop position, the cylindrical cam body 21b will not move. By interfering with the guide pin 6, the positioning rotation of the cylindrical cam body 21b by the positioning cylinder 27 is prevented, and the well-known confirmation switch that detects that the piston rod 110b of the positioning cylinder 110 has moved to the forward end becomes inoperable. , 15th
As shown in the figure, the next step is Shino exchange device 1.
6 no longer works. Thereby, it can be confirmed that the Shino exchanger 10 is out of the predetermined stop position, and positioning errors can be prevented. With the Shino exchanger 10 fixed in the working position as described above,
The Shino exchange device 16 operates and performs the predetermined Shino exchange work.
That is, the small bobbin 8 of the front row bobbin hanger and the full bobbin of the spare bobbin hanger are replaced. When the above-mentioned replacement operation is completed, the piston rod 27b of the positioning cylinder 27 is retracted in response to the operation completion signal, and the positioning drum 21 is rotated approximately 180 degrees counterclockwise in FIG. 21b is housed in the main body 11, and the fitting groove 22 is removed from the guide pin 6. Thereafter, the traveling motor 13 is driven again to cause the Shino exchanger 10 to travel leftward in FIG. This Shino exchange machine 10
is stopped at the working position for exchanging the next three small bobbins 8 and the full bobbin, and repeats the above bobbin exchange operation. Thereafter, by sequentially repeating the above operations from one end of the frame 2 to the other end, the thread replacement of the spinning machine is completed.

Thereafter, the Shino exchanger 10 is removed from the machine stand 3 and moved to the next Shino exchange requesting machine stand.

Effects As described above, in this invention, the positioning cylinder rotates the drum from the standby position to the positioning operation position for positioning, so the functions of each part for rotating the positioning drum are controlled. Since the rotary motion can be made, the position of the work equipment can be adjusted smoothly with less power, and since the positioning drum is rotated by the positioning cylinder,
Even if the positioning drum interferes with the guide pin, damage to the device can be prevented by setting the pressure of the positioning cylinder. Furthermore, since the positioning drum is formed into a semi-cylindrical shape with a length larger than the pitch interval of the guide pins, when the stop position of the working machine shifts and the fitting groove comes off from the stop guide pin,
The positioning drum comes into contact with the guide pin and its rotation is stopped, and as a result, a signal indicating the completion of operation of the positioning cylinder is not output, so it can be confirmed that the work equipment has deviated from the predetermined stop position and cannot be positioned. This has the effect of preventing malfunctions.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a sectional view of a spinning machine and a Shino exchanger, FIG. 2 is a front view of the Shino exchanger, FIG. 3 is a front view of a positioning device, and FIG. 4 is a front view of the Shino exchanger.
The figure is a sectional view taken along the line -- in FIG. 3 with a part cut away. 2... Machine stand, 4... Spindle, 5... Guide rail, 6... Guide pin, 10... Shino exchange machine (work machine),
11...Main body (work machine main body), 13...Travel motor,
18...Positioning device, 21...Positioning drum, 2
2... Fitting groove, 27... Positioning cylinder.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A work machine that is pivotably supported on a work machine body on a guide rail that is attached to the front of a machine such as a spinning machine and has a number of guide pins that correspond to the spindles planted at predetermined intervals on the side. In a working machine such as a spinning machine, which is equipped with a guide roller that rotates and travels, the main body of the work machine has a semi-cylindrical positioning device with a length larger than the pitch interval of the guide pins. The drum is rotatably supported around an axis in the running direction, and a fitting groove is provided on the outer periphery of the positioning drum that can fit the guide pin and has an enlarged entrance. A positioning device for a work machine such as a spinning machine, in which a rotatable positioning cylinder is interposed between a work machine main body and a positioning drum is placed between a standby position where the fitting groove is disengaged from a guide pin and a positioning operation position where the fitting groove is fitted to the guide pin. . 2. A cutout window is provided in the side plate of the work equipment body, and a positioning drum is arranged inside the work equipment body of the work equipment body, and when the positioning drum is rotated to the positioning operation position, a part of the window moves outside through the cutout window. A positioning device for a working machine such as a spinning machine as claimed in claim 1, which is configured to protrude.