JPS5935815B2 - Start device of winding machine - Google Patents

Description

Detailed Description of the Invention: A tire fixed on a drive line shaft is pressed perpendicularly to a drum connected to a bobbin support shaft, and as the yarn layer on the bobbin becomes thicker, the drum and tire are moved relative to each other. For this reason, thread winding machines that always wind the thread at a constant thread running speed have been employed in skein machines and the like.

In such a winding machine, when winding is started, such as when starting up or cutting thread, the rotation of the bobbin shaft is conventionally started by pressing the drum against the tire using a manual lever operation. If this is done suddenly, the bobbin shaft will suddenly start rotating from a stopped state, creating a strong tension on the yarn, causing a change in the yarn properties, causing defects such as the changed portion appearing as unevenness in the yarn feeding bobbin. When the yarn is supported on a shaft that rotates freely, the yarn feeding bobbin rotates rapidly due to the sudden yarn layer release, and the yarn feeding bobbin rotates at a circumferential speed faster than the yarn unwinding speed, which prevents the yarn from becoming tangled. This may occur.

Therefore, the above-mentioned lever operation requires skill and is troublesome as it requires careful observation each time it is operated. Therefore, from the start of rotation of the bobbin shaft in one unit of the winding machine until it reaches a steady speed, it is necessary to gradually increase the yarn unwinding speed by operating the lever, and this rise time is usually several tens of seconds. It takes an extremely long time to sequentially start all the units in a machine with a large number of yarn winding units arranged side by side.

The present invention is aimed at solving the above-mentioned drawbacks, and embodiments of the present invention will be described in detail below with reference to the drawings.

Reference numeral 1 denotes a thread winding unit, and the thread winding unit 1 is provided with a bobbin shaft 3 for supporting a winding bobbin 2, and a desk 4 connected to the bobbin shaft 3 through a gear or the like.

5 runs through the longitudinal direction of the machine in the direction in which the winding units 1 are lined up.
A tire 6 is supported perpendicularly to the desk 4 for each winding unit 1 on the line shaft 5, which is arranged as shown in FIG.

7 is a motor that drives the line shaft 5.

When the desk 4 contacts the tire 6, the bobbin shaft 3 rotates, and as the yarn layer of the bobbin 2 becomes thicker, the tire 6 is moved in the axial direction of the line shaft 5 by a device (not shown), and the bobbin shaft 3 is rotated. The rotation of No. 3 is gradually decelerated so that the yarn traveling speed is kept constant. In FIG. 1, hatched axes indicate fixed or fixed-position rotating shafts. An elongated hole 12 provided at one end of a mouth 11 for moving the desk 4 in the left-right direction in FIG. The desk 4 was brought into contact with and separated from the tire 6 by manual operation. A line shaft 13 is arranged parallel to the shaft 5, and the line shaft 13 is constantly rotated at a low speed by a motor 14.

A clutch plate 15 is supported on the line shaft 13 and takes two positions, engaged and disengaged with a clutch receiving plate 30, which will be described later. A motion transmitting member consisting of a rod 18, a lever 17, etc., which converts the motion into a linear motion of the rod 11 and transmits the motion, is interposed.

That is, the arm 16 of the clutch plate 15 and the lever IT having the shaft 8 as a fulcrum are connected by a rod 18. 19 is a fixed bracket, and a shaft 20 is supported on the bracket 19.
A clutch operating lever 21 is rotatably supported.

A lever 22 is swingably supported on a shaft 23 supported on a bracket 19, and a pin 25 is loosely fitted into a long hole 24 of the lever 22.

A spring 26 is applied between the shaft 23 and the pin 25, and urges the clutch operating lever 21 in the counterclockwise direction in FIG. 3T is a shaft fixed to the bracket 19, and the lever 2T is rotationally biased and supported by the shaft 3T by a torsion spring 38, and the cam roller 28 supported at the lower end of the lever 27 comes into contact with the end surface 15a of the clutch plate 15.

Operate the clutch. When not in use, the tip 2Ta of the lever 2T engages with one end of the clutch operating lever 21 as shown in FIG. Engaging teeth 29 are provided at regular pitches on the circumference of the other end surface of the clutch plate 15, and the teeth 29 and . Engaging teeth 31 are provided. The clutch plate 29 and the clutch receiving plate 30 are biased by a spring 32 in directions away from each other. The same operation can be achieved by providing a pin 33 projecting from the clutch plate 15 that engages with the tooth 31 as shown in FIG. 3 instead of the tooth 29 in FIG. 2. 34 is the end face 15a
It is a cam that protrudes from the top.

The figure shows the thread-winding stop device, from which the clutch operation lever 21 is pulled to the right in Figure 1, and the tip of the lever 2T
When Ta is removed from the tip of the lever 21, the torsion spring 38 causes the roller 28 to bring the clutch plate 15 into contact with the clutch receiving plate 30.

In this state, even if the clutch lever 21 is released, the lever 21 tries to return to its original position due to the spring 26, but comes into contact with the upper surface of the tip end 27a and stops. Since the clutch receiving plate 30 is rotating slowly together with the line shaft 13, when the clutch plate 15 contacts the clutch receiving plate 30, the teeth 31 and the teeth 29 are engaged with each other, or the teeth 31 and the pin 33 are engaged with each other. Due to this engagement, the clutch plate 15 begins to slowly rotate together with the line shaft 13. The above clutch plate 15
Due to the slow rotation of the lever IT, the lever IT rotates slowly around the shaft 8, and the lever 35 fixed on the lever 17 pushes the pin 36 on the operating lever 9 and gradually moves the disk 4 to the tire 6 via the rod 11. bring into contact. Due to the above-mentioned gradual contact, the yarn unwinding speed increases smoothly over time as shown in FIG. 4, and reaches a steady yarn unwinding speed, which eliminates the above-mentioned drawbacks of the conventional yarn. The rise time T to steady yarn unwinding speed is usually 10 seconds to 30 seconds.
Seconds are appropriate, and the rotational speed of the line shaft 13 is set according to the time. After the disk 4 and the tire 6 reach a predetermined contact pressure and the bobbin shaft reaches a winding speed, the rod 11 is locked by a known mechanism (not shown) in the unit 1, and then the roller 28 rides on the cam 34 and the torsion occurs. The lever 2T is moved toward the original position against the spring 38, and the tip 2Ta is disengaged from the lever 21, and the lever 21 is in the state shown in FIG. 1 and engaged with the side of the tip 27a. As a result, the biasing force of the lever 2T of the torsion spring 38 is removed, and the clutch plate 15 is disengaged from the clutch receiving plate 30 due to the biasing force of the spring 32, and returns to its original state. In the above example, the clutch plate 15 is brought into contact with the clutch receiving plate 30 by a mechanical mechanism, but an electromagnetic clutch is provided, and the clutch plate 15 and the clutch receiving plate 30 are brought into contact by excitation by button operation, and the excitation is maintained for a certain period of time. After that, it may be automatically unwound.

As described above, in the present invention, a winding machine that drives a bobbin support shaft by pressing a desk connected to a bobbin support shaft against a tire fixed on a drive line shaft provided along a plurality of winding units. A separate slowly rotating line shaft is provided along the plurality of winding units, and a clutch plate and a clutch are provided at each unit position on the line shaft for controlling the contact movement of the desk to the tire. A clutch mechanism consisting of a receiving plate is provided, and a clutch operating member such as a clutch operating lever and a button for operating the on/off of the clutch mechanism is provided, and the line shaft rotates slowly by instantaneous operation of the clutch operating member. Since the desk is made to gradually press into contact with the tire in synchronization with the rotation of the wheel, as long as the operator operates the operating member with one touch, the winding tension will not increase rapidly as described above. The desired yarn unwinding speed can be obtained without yarn tangling.

Therefore, there is no need to operate the operating lever during the entire period from the start of rotation of the winding bobbin to steady rotation, so it is extremely easy to start the winding units one after another in a winding machine with a large number of winding units arranged side by side. All units can be started in a short time. Furthermore, the rise time to the steady yarn unwinding speed can be easily set by adjusting the rotation speed of the line shaft 13, and can be changed depending on the yarn type, making it possible to obtain the optimum operating efficiency of the winding machine. can.

[Brief explanation of drawings]

Fig. 1 is a front view of the configuration of one embodiment of the present invention, Fig. 2 is a side view showing the same clutch portion, Fig. 3 is a side view showing the clutch portion of another embodiment, and Fig. 4 is a configuration according to the present invention. FIG. 3 is a diagram showing the rise pattern of the yarn unwinding speed at the start. 1... Thread winding unit, 2... Winding bobbin, 3... Bobbin support shaft, 4... Disc, 5... Drive Line shaft, 6...
... Tire, 13 ... Line shaft, 15
...Clutch plate, 30...Clutch receiving plate, 21...Clutch operation lever.

Claims (1)

[Claims] 1 A winding machine that drives a bobbin support shaft by pressing a disk connected to a bobbin support shaft against a tire fixed on a drive line shaft provided along a plurality of thread winding units, the winding machine driving the bobbin support shaft; A slowly rotating line shaft separate from the drive line shaft is provided along the unit, and at each winding unit position of the line shaft, a clutch receiving plate fixed to the line shaft, engaged with the clutch receiving plate, A clutch plate that assumes two non-engaged positions is provided, and a motion transmission mechanism is provided between the clutch plate and a push rod that pushes the disc toward the tire to convert rotational motion of the clutch plate into linear motion of the rod. A starting device for a yarn winding machine, characterized in that each yarn winding unit is provided with an operating member for switching between two positions of the clutch plate.