JPS62126020A - Belt separating shaft - Google Patents

Abstract

PURPOSE:To enhance the separating ability of a belt separating shaft, by forming, in one end of the shaft, a spiral groove having a width which allows the groove to be fitted therein with a fed belt, and by increasing the lead angle groove width of the spiral groove toward the other end. CONSTITUTION:A belt bundle 30 is wound on the front end section (a) of a shaft 15 inclined at an angle of theta1 deg., and therefore, the shaft 15 is rotated. With this arrangement the belt bundle 30 is loosened by a spiral groove into belts 7 which are successively fed in the direction of the arrow. At this time the belts 7 are fitted in threads in the section (a), and is therefore pushed forward. After passing through the section (a), they advances overriding the spiral threads on the shaft 15 since the lead angle groove width is gradually increased, and therefore, the belt 7 is subjected to vibration for loosening the belt to release their twist. With this arrangement, it is possible to enhance the belt separating ability of the shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a belt separation device that takes out belts supplied, for example, in a bundle one by one without twisting, and particularly relates to a belt separation shaft that has a large belt separation effect.

[Background of the invention]

As a conventional belt separation and sorting device,
No. 22 is known. This name comes from a sorting device that conveys the belt by hooking the belt into the spiral groove of the shaft with a spiral groove and rotating the shaft, and a device that feeds one or more belt trucks to this sorting device. It consists of a supply device for FIG. 4 shows an overall perspective view of the separating and sorting device, and FIGS. 5 and 6 show the principle of the sorting and feeding device.

In FIG. 4, the hollow drum 1 is rotatably supported by six sets of rollers 6 which are rotatably supported by the base 2. The rotation of the motor 4 is transmitted to one of the three sets of rollers by the belt 5, and the drum 1 is rotated.

A plurality of separation claws 6 are installed in a row in the circumferential direction on the inner surface of the drum 1. Reference numeral 8 denotes a shaft of the sorting device, and one end thereof is positioned on the track along which the lower end of the belt 7 pulled up by the separating claw 6 passes. As shown in FIGS. 5 and 6, the feeding device 8 moves the shaft 8, which has a spiral groove 9 and an engagement groove 10 shallower than the spiral groove 9, into the base frame 1.
The shaft 8 is rotated by appropriately engaging the roller 12 supported by the shaft 8.
, and one of the rollers 12 is driven by a motor 13.

In the above configuration, when the belt 7 is supplied into the drum 1 and the motor 4 is rotated to rotate the drum 1, the separating claw 6 hooks one to several belts 7 supplied into the drum 1. When separated and further rotated, the belt 7 hooked on the separation claw 6 is pulled up above the shaft 8 and supplied to the shaft 8. Then, by rotating the shaft 8 in a predetermined direction, the belt 7 supplied to the shaft 8
are transported while being separated in a desired direction.

However, in the separating and sorting device having the above structure, the amount of belt 7 supplied to the drum 1 is large (as the amount of belt 7 caught on the separating claw in the drum 1 increases, the belt 7 is continuously fed to the shaft 8). The amount of belt supplied to the shaft 8 becomes excessive.Then, the belt cannot be separated before it reaches the position of the roller 12 of the base frame 11 that supports the shaft 8, and several belts are separated at the same time. It enters the engagement groove 10, causing problems such as belt clogging.This is due to the low belt separation ability of the spiral groove used in the separation and sorting device.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a belt separation shaft suitable for a belt separation device that separates belts one by one from a belt fed in a bundle during belt separation and supply.

[Summary of the invention]

A threaded shaft with a continuously varying lead angle groove width is tilted at a predetermined angle with respect to the horizontal, and a belt bundle is applied to the shaft to rotate the shaft at a predetermined number of rotations. Then, the bundle-shaped belt is loosened by the vibration of the rotating screw thread, the belt overlaps, and when the twist is removed, it advances in one direction, and because the lead angle is changed, the belt traveling speed is equal to that of the shaft. Each location is different, the belt is 1
Separate one book. The present invention provides a shaft in which a spiral groove is formed for separating and generally feeding a belt fr.
It is characterized in that the end has a spiral groove having a groove width that fits the belt to be supplied, and the lead angle groove width of the spiral groove gradually increases toward the opposite end.

[Embodiments of the invention]

The present invention will be explained in detail below.

The target belt in this embodiment is a bomb having a circular diameter of approximately 90 m, a belt width of 6 M, and a belt thickness of 0.6 Wm.

In this embodiment, the belt separation shaft 15 has a peak diameter of 50 m and a valley diameter d of 55 m, as shown in FIG. In addition, the spiral groove shape formed in the shaft 15 has a rising R from the valley to the peak at αe.
has become very small. (Enlarged view of part a 16) Also,
The lead angle in aS is about 7 degrees. The spiral groove after part a gradually becomes larger from the lead angle and groove width of part 4. The shape of the spiral groove after cLs has a large R rising from the trough to the peak (Fig. 1, 17), and R gradually increases as the lead angle and groove width increase. . However, the width of the helical groove has a shaft 15
It is constant over the entire length.

A description will be given of the mixing and separating process when the belts 7 are supplied in a bundle by the shaft 15 described above.

In FIG. 2, the shaft 15 is tilted by +θ and the belt bundle 60 is inserted. A belt bundle 60 of approximately 50 belts is inserted into the tip of the shaft 15. When the shaft 15 is rotated counterclockwise when viewed from the tip, the belt bundle 60 falls apart in the direction of the arrow, as shown in FIG. 2.

Also, the belt 7 that is twisted at this time is untwisted, and the way the belt 7 descends is shown in ILi, and in ILi, the belt engages with the groove and is pushed forward by the screw thread. If it passes through, the belt will not engage with the seven helical grooves and will go over the helical peak of the shaft 15. As the belt 7 rotates, it is vibrated by the helical peaks, and this vibration loosens the belt bundle and eliminates the twisting of the belt. Furthermore, due to this vibration and the inclination of the shaft, the belt 7 descends, and the leading belt 7 that is descending hits the stopper 18, and as the belt continues to rotate, the spread range C of the belt becomes smaller and becomes less than the predetermined length. Stop the shaft from rotating 150 times. Next, as shown in Figure 3, set the tip of the shaft 10τ downward.
Tilt and rotate the shaft clockwise.

Then, as shown in FIG. 7, the belt 7 is transported down the shaft 15 while gradually expanding. Then, as shown in Figure 8, when the fourth part of the spiral groove is reached, it is separated one by one.
, and fall from the tip.

If the belt 7 separates τ, the 70th. As shown in Figure 8, the belt 7 on the right side is denser and becomes coarser towards the tip, so the number of belts that fit into one part of the tip is small, and each belt is 1.
Make sure the book is separated.

Fig. 9 shows the spiral shaft 15 and the spiral shirt)
FIG. 10 is a graph showing the relationship between the lead angle and the belt transfer speed when the rotation speed (rpm) is kept constant.
This is a plot of the results of an experiment conducted using shafts of U, 60 and 18 (belt width and lead length of the mating part) under the same conditions of rotation speed and angle.

According to this graph, the smaller the lead angle, the faster the transfer speed becomes, and it is maximum at the cL portion. This also explains the above-mentioned belt separation situation.

FIG. 11 shows an embodiment of belt separation loading using a helical shaft of the present invention. A helical shaft 1b is rotatably held by an index table 19. The spiral shaft 15 is attached to the index table 17 at a predetermined angle.
7, the spiral shaft 15 located above is 101 degrees with respect to the horizontal direction, and the spiral shaft 15 located below is 10 degrees.

It is installed at an angle. A pulley 20 is fixed to one end of the helical shaft 15. Further, a motor IO is fixed to the index table 19, and a pulley 21 is fixed to the shaft of the motor 20. The helical shaft 15 is rotated by a motor 22 via pulleys 21 and 22 and a belt 25. The index table 19 is indexed 180° by the index unit 24. To explain the operation of the above configuration, first, hang which of the 50 belts on the top end of the helical shaft 15, which is inclined at 101 degrees, and rotate the shaft 15 counterclockwise. Then, the belt bundle descends in the direction of arrow E while separating. When the belt 7 hits the stopper 18 and the spread range of the belt becomes less than a predetermined length, the spiral shaft 150 rotations are stopped. Next, the index table 17 is rotated 180'. Then, the shaft 15 to which the belt 7 is supplied is in a state of being tilted by 10 degrees in the lower position. When the shaft 15 is rotated in a clockwise direction in this state, it descends while separating in the direction of arrow F, and at the tip, it separates one by one and falls.

Further, the belt bundle is supplied to the shaft 15 which has been rotated by 18θ'' to the upper position, so that separation and supply can be performed at the same time.

In addition, as another example, the Jikosho 5, which was raised as a conventional example.
In the belt separating and sorting device in No. 6-52422, the first shaft is used instead of the shaft used as the sorting device.
By using a sorting device using the shaft 25 according to the present invention as shown in Fig. 2, even if the belt supply amount increases, the belt can be reliably separated before reaching the base frame, and the belt can be separated between the roller and the shaft. Mekaramari can be separated and supplied reliably.

〔Effect of the invention〕

As described above, according to the present invention, many belts can be
This single screw tC can be reliably separated, so
Automation of belt separation and supply can reduce troubles and is also effective in reducing the number of people needed to troubleshoot troubles.

[Brief explanation of drawings]

Figure 1 is a front view showing one embodiment of the present invention, Figures 2 and 3 are
Figure, Figure 7 1. Fig. 8 is an explanatory diagram of the operation of this embodiment, Fig. 4 is a perspective view showing a conventional example, Figs. 5 and 6 are structural explanatory diagrams of the transfer sheet P7 of the conventional example, and Fig. 9 is an explanatory diagram of the present embodiment. FIG. 10 is a graph showing the relationship between the lead and the lead angle, FIG. 10 is a graph showing the relationship between the cut and the belt transfer speed, and FIGS. 11 and 12 are diagrams showing the configuration of a belt separating device using this embodiment. 711169. Belt, 15...Curved shaft. No. l Shouting Rule 2 Figure 3 R No. 4 No. 4 No. 4 Ka 7 Ward No. 8 No. 7 Country l I No. 70 Sen' J-do (Kyu) High // l ¥1

Claims (1)

[Claims] 1. In a shaft in which a spiral groove is formed to separate and generally feed the belt, one end of the shaft has a spiral groove having a groove width that fits the belt to be supplied, and A belt separation shaft characterized by a lead angle groove width that gradually increases.