JPS644851Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a self-propelled motor-driven machine that moves while being guided by guide rails provided along the spindle rows on both sides of the machine, such as a ring spinning machine or a ring twisting machine. The present invention relates to a running stop device for a working machine, particularly for a working machine that is used infrequently.

BACKGROUND TECHNOLOGY As the above-mentioned motor self-propelled work machine, one machine is attached to each side of a spinning machine, and a machine is moved from one end of the spinning machine to the other end (for example, from the gear end section to the out end section). A wagon type doffing machine is known in which bobbins are extracted from a plurality of spindles and empty bobbins are supplied instead. The pair of left and right wagon-type doffing machines are mounted on a carrier at the end of the spinning machine frame, and are moved between the machines along the end of the spinning machine frame. This wagon type doffing machine is
They are guided by guide rails on the left and right sides of the spinning machine (conventionally, right and left sides are determined by looking from the gear end toward the out-end with respect to the longitudinal center line of the frame). A large number of doffing instruction cams are arranged on this guide rail at a predetermined pitch with respect to each other. The doffing instruction cams are arranged to face each other on the left and right sides so that the pair of left and right doffing machines engage with the doffing machines and stop them at a predetermined doffing position when each goes from the gear end to the out end. The longitudinal positional relationship between the doffing instruction cam and the spindle is different when viewed from the gear end toward the out end and when viewed from the out end toward the gear end.

Problems to be Solved by the Invention Recently, there has been a demand for replacing the roving bobbin of a spinning machine by using the existing guide rail and doffing instruction cam as described above. but,
The replacement of the roving bobbin is much less frequent than the doffing work mentioned above, so the conventional method of installing one working machine on each side of the spinning frame is not effective considering the equipment cost. It becomes uneconomical due to low operating rate. Therefore, it is conceivable to perform work on both the left and right sides using a single work machine. However, if a working machine that is designed to work from the gear end to the out-end on one side of the spinning machine, for example, the left side, is attached to the other side of the spinning machine, that is, the right side, and moreover, from the out-end to the gear end. Even if you try to work while moving, the longitudinal positional relationship between the doffing instruction cam and the spindle is different on one side of the spinning machine and the other side, as mentioned above, so the stopping position on the other side of the work machine will not be in the correct working position. I had a problem where I couldn't work.

Means for Solving the Problem In order to solve the above problem, this invention provides a stop position for one side that is engaged with the doffing instruction cam on one side of the spinning machine during movement from one end of the spinning machine to the other end. a detection switch, a stop position detection switch for the other side that engages the doffing instruction cam on the other side of the spinning machine during movement from one end to one end of the spinning machine, and a stop position detection switch for the other side that engages the doffing instruction cam on the other side of the spinning machine, and The present invention is characterized in that the work machine is equipped with a changeover switch for switching, and the work machine is stopped by a detection signal from the detection switch.

Function On one side of the spinning machine, the changeover switch activates the stop position detection switch for one side of the work machine, and the doffing on one side is performed while the machine frame is moving from one end of the machine to the other end (for example, from the gear end to the out end). It is engaged with the indicator cam and stopped at a predetermined stop position. When it reaches the other end (out end) of the machine base, turn the work equipment and attach it to the other end of the machine base. Then, on the other side of the spinning machine, the changeover switch activates the stop position detection switch for the other side of the work machine, giving instructions for doffing on the other side while the machine is moving from the other end to one end (from the out end to the gear end). Engages with the cam to stop the work machine at a predetermined stop position.

Embodiment In FIGS. 1 to 5, 1 is a spinning machine, 2 is a spindle rail, and 3 is a spindle rotatably supported by the spindle rail 2. A bracket 4 projects from the bottom of the spindle rail 2. An upper guide rail 5 is attached to this bracket 4, and the left side of the spinning frame 1 (upper side in FIG. 1),
On the right side (lower side in Figure 1), each extends over the entire length of the machine. The right and left sides of the frame are generally determined as the left and right sides with respect to the longitudinal center line of the frame, as viewed from the gear end of the spinning frame 1 toward the out-end. In this embodiment, one side of the spinning frame 1 is the left side, and the other side is the right side. A positioning pin 6 (used for movement in a wagon-type doffing machine) is provided on each upper guide rail 5 at a pitch twice the spindle pitch P, and a doffing instruction cam is provided at the bottom of the upper guide rail 5. A plurality of spindles 7... are mounted at a pitch D which is 12 times the spindle pitch P, from a position further leftwardly shifted by S to the left end of the spindle 3 toward the right end of the machine base. As is clear from Fig. 1, the longitudinal positional relationship between the doffing instruction cam 7 and the spindle 3 from the gear end to the out-end on the left side of the machine, and from the out-end on the right side of the machine. The doffing instruction cam 7 toward the gear end portion and the spindle 3 have different longitudinal positional relationships. This doffing instruction cam 7 is for stopping at a predetermined working position a well-known wagon-type doffing machine that normally replaces every 12 spindles with empty bobbins wound on the spindle 3 of the spinning frame 1. Next 8
1 is a working machine, and guide rollers 9, 9, which protrude toward the spinning machine 1 side and are rotatably supported, are placed on the upper guide rail 5. guide roller 9,
Of the 9, the one on the left side in Figure 2 is chain-linked to a travel motor 11 attached to the main body 10, and a magnetic brake 12 is attached to the wheel side to move the work implement 8 to the left in Figure 2. At the same time, a magnetic brake 12 is actuated in response to a detection signal from a limit switch, which will be described later, to stop the working machine 8. Further, a pair of front and rear lower guide rollers 13 are rotatably attached to the lower part of the side plate 10a on the machine side of the main body 10, and contact the lower guide rail 14 of the spinning machine 1 to maintain the work machine 8 in a vertical position. I am trying to maintain it. A wheel device for supporting the weight of the working machine 8 is provided on the bottom surface of the main body 10. In this wheel device, a pair of left and right wheels 15, 15 are rotatably supported at the front end in the running direction. One end of a pair of left and right support arms 16, 16 is pivotally attached to the rear end of the bottom surface of the main body 10, and both ends of a foot pedal 17 are fixed to the other ends of these support arms 16, 16, respectively. There is. The support arms 16, 16 are urged upward by a spring 18 stretched between them and the main body 10, and are brought into contact with a stopper rod 19 provided on the main body 10. Wheels 20, 20 are rotatably supported on the support arms 16, 16, respectively. Further, one end portions of a pair of left and right support arms 21, 21 are pivotally attached to the intermediate portion of the bottom surface of the main body 10, and large diameter wheels 22, 22 are rotatably supported on these support arms 21, 21, respectively. ing. Compression springs 23, 23 are interposed between the support arms 21, 21 and the bottom surface of the main body 10, respectively, and the spring force of these compression springs 23, 23 supports the load of the working machine. This support arm 21,2
The upward rotation of 1 is achieved by the stopper rod 2 provided on the main body 10.
4, 24 so as to be received at a predetermined position. The wheels 22, 22 are configured to be at a lower position than the front and rear wheels 15, 20, and the working machine 8 can be tilted in a scale-like manner by holding a handle 25 attached to its main body 10. . Therefore, when the guide rollers 9, 9 of the working machine 10 are removed from the upper guide rail 5 of the spinning machine 1, the working machine 8 is moved between the pair of central wheels 22, 22, the pair of front or rear wheels 15, 20 can be used to run stably on the floor surface, and when the work machine 8 is attached to the spinning machine 1, the work machine 8 is first set so that the running direction side is higher, and the front guide roller 9 is moved. is placed on the upper guide rail 5, and then the foot pedal 17 is depressed to push up the rear part of the working machine 8, whereby the rear guide roller 9 can be easily placed on the upper guide rail 5. Next, on the side plate 10a on the side of the machine, there are stop position detection switches S1L, S2L, S1 for the left side and for the right side.
R, S2R (hereinafter referred to as left or right switch)
is installed. This left side or right side switch is a limit switch LS and a detection section 25, respectively.
It consists of In the detection unit 25, 26
is a bearing attached to the side plate 10a on the side of the machine, and a rotation shaft 27 is rotatably supported by the bearing 26 so as to protrude outward into the side plate 10a. This rotation axis 2
A detection lever 28 is fixed to the outer protruding portion of the doffing indicator 7, and a cam follower 29 that can be engaged with the doffing instruction cam 7 is rotatably attached to the tip of the detection lever 28. Further, a switch cam 30 is fixed to the inner protruding portion of the rotation shaft 27. This switch cam 30 faces the detection lever 31 of the limit switch LS, and as shown in FIG. It is designed to engage with the detection lever 31 of the limit switch LS only when the detection lever 28 swings clockwise in FIG. When the vehicle is moved backward, the switch cam 30 and the detection lever 31 are not engaged with each other. Further, 32 is a balance spring for always holding the detection lever 28 in an erect state, and its tips are engaged with pins 34, 34 implanted in the machine side plate 10a and the switch cam 30, respectively. Reference numeral 35 designates a set of roving bobbin exchange units, and this working machine 8 is attached to the right or left side of the spinning frame 1, stops at a predetermined working position, and is rotated by spinning on the spinning frame 1 side. Empty roving bobbin E and
Three spindles at a time are exchanged with full bobbins F prepared in advance. Next, the mounting relationship of the left and right switches S1L, S2L, S1R, and S2R will be explained. In the working machine 8, O is the work reference line of the working machine 8, and the spinning machine 1 has 6 spindle pitches L1, L2, etc. from the gear end side (left side in Fig. 1) on the left side (upper side in Fig. 1). A work reference line is set for each pitch, and a work reference line is set for every six pitches of the spindle from the right side (lower side in Figure 1) to R1, R2, etc. and from the out end side (right side in Figure 1). Therefore, the left and right work reference lines L1... and R1... of this spinning frame 1 do not face each other on the left and right sides of the frame. When the working machine 8 is attached to the left or right side of the spinning frame 1 and the working reference lines of the working machine 8 and the spinning frame 1 coincide, the roving bobbin exchange unit 35 and the three empty bobbins of the spinning frame 1 are (This stop position of the work implement 8 is referred to as the left-hand or right-hand work stop position). Now,
Even if the traveling motor 11 is stopped, the work implement 8 travels by a distance C shown in FIG. 1 and then stops. When the doffing instruction cam 7 on the left side engages with the cam follower 29 at the tip of the detection lever 28, in other words, the working machine 8 is moved to a position C in front of the work stop position of the spinning machine 1. When the work stop position is on the left side, the first left switch S1L is located at a position shifted from the doffing instruction cam 7 by a predetermined amount in the moving direction.
is provided. Also, the second left switch S
2L is attached in the forward direction of the working machine 8 at a pitch six times the spindle pitch of the first left switch S1L, that is, half the pitch D between the doffing instruction cams 7. In addition, as shown in Fig. 6, the work machine 8 is attached to the right side of the spinning frame 1, and the work machine 8 moving from the out end to the gear end moves to a position C in front of the work stop position on the right side. In this state, when the doffing instruction cam 7 on the right side engages with the cam follower 29 at the tip of the detection lever 28, that is, when the work implement 8 is at the right work stop position, the position is lower than the doffing instruction cam 7. A first right switch S1R is installed at a position shifted by a fixed amount C in the moving direction. Further, the second right switch S2R is installed in the forward direction of the working machine 8 at a pitch of D/2. Further, when the working machine 8 is attached to the right or left side of the spinning frame 1, the working machine 8 is attached to the left side or the left side depending on the moving direction (from the gear end to the out end direction or vice versa). Right side switch S1L, S2L, S1
Switch 3 for switching between R and S2R
6 is provided. This changeover switch 36 may be provided with a cam on the spinning machine side, and a corresponding switch provided on the working machine side to automatically determine whether to select the left or right side by attaching the cam to the spinning machine.

According to such a configuration, the working machine 8 is first manually attached to the left side of the spinning frame 1, and the working reference line O of the working machine 8 and the first working reference line L1 of the spinning machine 1 are aligned.
Match. In this state, for example, the roving bobbin exchange unit 35 mounted on the working machine 8 is replaced by the spinning machine 1.
Replace the roving bobbin corresponding to 6 pitches of the spindle (that is, the roving bobbin for 3 spindles). Next, the travel motor 11 is driven, and the work implement 8 moves from the gear end side to the out end side (from left to right in Figure 1), and the second left switch S2L engages with the second doffing instruction cam 7 from the gear end side. Then, the switch cam 30 rotates, the detection lever 31 of the limit switch LS is activated, and the magnetic brake 12 is activated based on this detection signal. The work implement 8 moves by C due to inertia to reach the left work stop position where the work reference line O of the work implement 8 and the next work reference line L2 of the spinning frame 1 coincide, that is, from the left work stop position to the spindle pitch. It stops after moving 6 times as much as P. Then, three spindles are replaced from the next roving bobbin after the roving bobbin replaced at the left work stop position (FIG. 7). Once the replacement is complete, drive motor 1
1 is driven, the first left switch S1L engages with the second doffing instruction cam 7 and stops, and the next roving bobbin is replaced. After all the roving bobbins on the left side of the spinning frame 1 have been replaced in this way, the working machine 8 is manually removed from the upper guide rail 5 on the left side of the spinning frame 1 on the out-end side of the spinning frame 1 (right side in Figure 1), and it remains as it is. Make a U-turn and attach to the out end of the spinning frame 1, and align the work reference line O of the working machine 8 with the first work reference line R1 on the right side of the spinning frame 1. At this time, the changeover switch 36 is switched to the right side. In this state, first, the roving bobbin exchange unit 35 is operated to exchange three spindles of roving bobbins as in the case on the left side, and then the travel motor 11 is driven, and the work implement 8 is moved to the 6th position of the spindle pitch P. Move twice and place the second doffing instruction cam 7 from the out end section.
The right switch S2R engages and stops, and the roving bobbin is replaced (Fig. 8). Thereafter, all the roving bobbins on the right side are replaced in the same way as on the left side.

In this embodiment, two left or right switches are provided on the work machine 8 at a pitch that is half the pitch of the doffing instruction cam 7 of the spinning machine 1, and the work machine 8 is set to the pitch of the doffing instruction cam. For example, if three detection switches are installed at 1/3 of the pitch of the doffing indicator cam, the work machine will be stopped at 1/3 of the pitch of the doffing indicator cam. be able to.
Furthermore, in this embodiment, the working machine equipped with a roving bobbin exchange unit for exchanging the roving bobbin of a spinning machine has been described, but the invention is not limited to this, and other comparatively frequent working machines attached to spinning machines such as a spinning machine can be used. It may also be a device that performs less work. Furthermore, although the doffing instruction cam of a spinning machine has been described as being installed at 12 times the spindle pitch, the present invention is not limited to this, and the same method can be applied to spinning machines with a doffing instruction cam installed at 8 times or 10 times the spindle pitch. Further, when the working machine is manually attached to the spinning frame, the traveling motor 11 may be driven after the left switch S2L passes the first doffing instruction cam 7 if it is on the left side.

Effects of the invention As described above, the present invention has a doffing instruction cam attached to the guide rails and a predetermined work stop position when the working machine is guided by the guide rails on both sides of a ring spinning machine or ring twisting machine. A stop position detection switch for one side and the other side that is engaged immediately before is attached to the work machine, and a changeover switch is provided to switch these detection switches depending on the moving direction of the work machine, and the detection signal from the detection switch is used to perform work. Since the running of the machine is stopped, the doffing instruction cam for wagon-type doffing machines, which is conventionally installed on the guide rail of a spinning machine (for example, a spinning machine), can be used as is, and the doffing instruction cam on one side of the spinning machine is The work implement can be stopped at a working stop position on one side or the other side while moving from one end to the other end. Therefore, without making any modifications to the existing spinning machine, it is possible to work on both the left and right sides of the spinning machine with one working machine equipped with one set of working units.
As a result, by using such a travel stop device especially for work equipment that performs infrequent work, it is possible to significantly increase the operating rate of the work equipment, reduce equipment costs, and have economic advantages. There is.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the whole, Fig. 2 is a front view of the working machine, Fig. 3 is a longitudinal sectional view of Fig. 2, and Fig. 4 is a
An enlarged front view of the stop position detection switch for one side and the other side, FIG. 7
8 are action explanatory diagrams. 1... Spinning machine, 5... Upper guide rail, 7...
...Doffing instruction cam, 8... Work equipment, 11... Magnetic brake, 36... Changeover switch, S1
L, S2L...Stop position detection switch for one side,
S1R, S2R... Stop position detection switch for the other side.

Claims (1)

[Scope of utility model registration request] Doffing instruction cams for wagon-type doffing machines are installed on the guide rails on both sides of the spinning machine stand at the spindle pitch.
In addition to mounting at twice the pitch, the longitudinal positional relationship of the doffing instruction cam and spindle on one side of the machine from one end of the machine to the other, and on the other side of the machine.
In a spinning machine in which the doffing instruction cam and the spindle have different longitudinal positional relationships from the other end of the machine frame to one end, a motor self-propelled working machine that is guided by the guide rail and moves along the spindle row of the spinning machine. The working machine is configured such that when the spinning machine moves from one end of the spinning machine to the other end along a guide rail on one side of the spinning machine, at a predetermined work stop position, the doffing instruction cam moves a predetermined amount in a moving direction. A stop position detection switch for one side that can be engaged with the doffing instruction cam is installed in the shifted position, and when moving from the other end of the spinning machine toward one end along the guide rail on the other side, At the work stop position, a stop position detection switch for the other side that can be engaged with the doffing instruction cam is installed at a position shifted from the doffing instruction cam by a predetermined amount in the movement direction, and the work machine is further equipped with these detection switches. 1. A running stop device for a working machine in a spinning machine, characterized in that a changeover switch is provided for changing the direction of movement of the working machine in accordance with the moving direction of the working machine, and the working machine is stopped in response to a detection signal from the detection switch.