JPS6243948Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a sorting device used when sorting articles conveyed on a conveyor.

[Conventional technology]

Conventional sorting devices are shown in FIGS. 5 and 6, and FIGS. 7 and 8. First of all, let's start with the things in Figures 5 and 6: a is a sorting conveyor, b is a frame that supports the same sorting conveyor a, etc., c is a payout port, and d is a rotating shaft attached to the frame b via a bearing e. A shaft, f is a dispensing arm pivoted to the upper end of the rotating shaft d, g is a swinging arm with one end pivoted to the lower end of the rotating shaft d, h is an electric motor attached to the frame b, and i is the electric motor h A drive disk fixed to the output shaft, j is a connecting rod to which the drive disk i and the other end of the swing arm g are pivotally connected, k is a pull-out roller provided at the payout port c, l is an article, When the article l is transported by the sorting conveyor a and reaches the solid line position in FIG. 6, a start command is sent to the electric motor h, and the drive disc i
begins to rotate in the direction of the arrow, and the dispensing arm f, which was waiting at the solid line position, begins to swing clockwise about the rotation axis d. Further, when the dispensing arm f further swings and reaches the position indicated by the dashed-dotted line, the article l reaches the position indicated by the dashed-dotted line, where they come into contact with each other and prevent the article l from moving further. Further, when the dispensing arm f further swings and reaches the position indicated by the two-dot chain line, the article l
The sorting conveyor a is forcibly moved to the position indicated by the two-dot chain line and is placed on the pull-out roller k. Thereafter, the article l is guided by the same pull-out roller k and is delivered out of the sorting conveyor a through the delivery port c. Further, when the dispensing arm f reaches the position indicated by the two-dot chain line, it begins to swing counterclockwise, and when the drive disk i completes one revolution, it returns to its original standby position. The operating characteristics of the dispensing arm f are shown in FIG. 9.

Next, the sorting device shown in Figs. 7 and 8 will be explained.
a, b, c, f, h, k are the same parts as in Figs. 5 and 6, one end of m is pivotally connected to the output shaft n of the electric motor h, and the other end o is pivotally connected to the rear of the dispensing arm f. a rotating lever, a shaft p fixed to a frame b,
q is a swinging arm in which one end r is loosely fitted on the coaxial shaft p, and the other end s is pivoted near the center of the dispensing arm f, and the article l is conveyed by the sorting conveyor a until it reaches the position shown in the solid line in Fig. 8. Then, a starting command is sent to the electric motor h, the rotary lever m begins to rotate counterclockwise, the dispensing arm f is pushed to the left, and the swing arm q begins to swing counterclockwise around the axis p. , the payout arm f starts moving in the direction of the sorting conveyor a. Further, when the dispensing arm f moves further and reaches the position indicated by the dashed-dotted line, the article 1 also reaches the position indicated by the dashed-dotted line, and they come into contact with each other, preventing the article 1 from moving further. Further, when the dispensing arm f further swings and reaches the position indicated by the two-dot chain line, the article l is also forcibly moved on the sorting conveyor a to the position indicated by the two-dot chain line and rides on the pull-out roller k. Thereafter, the article l is guided by the same pull-out roller k and is delivered out of the sorting conveyor a through the delivery port c. Further, the dispensing arm f which has reached the position shown by the two-dot chain line begins to swing counterclockwise, and returns to the original standby position when the rotary lever m completes one rotation. In addition, in this sorting device, the tip of the dispensing arm f reciprocates drawing a deformed elliptical locus, and when moving forward from the solid line position, it moves from two points past the one-dot chain line position to just before the two-dot chain line position. During the return movement from the chain line position, the movement speed of the payout arm f becomes the fastest when reaching the above section, but
This operating characteristic is shown in FIG.

[Problem that the invention attempts to solve]

In the sorting device shown in FIGS. 5 and 6, the rotation axis d
A payout arm f is moving clockwise around , and an article l is being conveyed by a sorting conveyor a.
Since they are brought into contact with each other at the dot-dashed line position, there is a problem in that they collide with each other and the impact force on the article 1 becomes extremely large, causing damage to the article 1.

In the sorting apparatus shown in FIGS. 7 and 8, when the article l comes into contact with the dispensing arm f, the dispensing arm f is also moving in the direction of movement of the article l;
Although the impact force on the article l is smaller than that of the sorting device shown in FIGS. Since they were in contact with each other, there was still a possibility of a collision, and there was still a risk that the article 1 would be damaged. Furthermore, if the article l is delayed, it will collide with the dispensing arm f, which is moving at an increased speed, and the impact force on the article l will be larger than that of the sorting device shown in Figs. 5 and 6. Ta.

[Means for solving problems]

The present invention addresses the above-mentioned problems, and includes a frame, a sorting conveyor supported by the frame parallel to the frame, a chute installed on one side of the sorting conveyor on the discharge port side, and a sorting conveyor supported by the frame in parallel with the frame. In a sorting device comprising a payout arm disposed on the other side opposite to the payout port side of a sorting conveyor, a drive disk is rotated via a drive shaft by an electric motor provided at a suitable location near the payout arm side of the frame. a connecting rod having one end pivoted to the drive disk and the other end approximately centrally of the dispensing arm for power transmission; A swinging arm is pivoted at approximately the center, and a frame with one end pivoted at an appropriate position near the rear end of the dispensing arm, and the other end pivoted at the rear end of the dispensing arm, and the swinging arm rotates in a circle toward the dispensing direction. When it rotates in an arc, it rotates in an arc toward the swinging arm and works together with the swinging arm to keep the dispensing arm at approximately the same angle for a predetermined time required to dispense the article at the dispensing position. An object of the present invention is to provide a sorting device characterized by comprising a support arm that restricts the sorting device to be held in place.

[Effect]

When the articles reach the sorting device position, a start command starts the electric motor and rotates the drive disk once counterclockwise. In the meantime, the swinging arm swings counterclockwise about the shaft on the frame side toward the dispensing port via the connecting rod. At the same time, the support arm swings clockwise around the frame side axis via the pivot point at the rear end of the payout arm. Controlled by the swinging of the swing arm and support arm, the payout arm maintains the same tilted state for a certain period of time while moving in the conveyance direction of the sorting conveyor, and then gradually increases the tilt angle to near its tip. reaches the chute side. On the other hand, the article is dispensed by contacting the dispensing arm while the dispensing arm is held at approximately the same angle of inclination as described above.

After dispensing the articles, the swinging arm swings counterclockwise and the support arm swings clockwise to return to the original standby position before dispensing the articles. It is swung counterclockwise while being regulated by the swiveling of the article, and is returned to the original standby position before dispensing the article. Note that the electric motor is stopped by operating the brake when the drive disk rotates once as described above.

〔Example〕

Next, the sorting device of the present invention is shown in Figures 1, 2, and 3.
To explain with one embodiment shown in the figure, 1 in FIG.
is the feed conveyor, 2 is the timing conveyor,
3 is an operation room, 4 is a sorting conveyor, 5 is a sorting device of the present invention, 6 is a pull-out roller, 7 is a chute, 8 is an article to be sorted, and a feed conveyor, a timing conveyor, and a sorting conveyor 4 are arranged in that order. , an operation chamber 3 is provided on one side of the timing conveyor 2, a sorting device 5 is provided on one side of the sorting conveyor 4, a pull-out roller 6 is provided on the other side of the sorting conveyor 4 facing the sorting device 5, and a chute 7 is provided on the other side of the sorting conveyor 4. It extends outward from the pull-out roller 6. Next, the sorting device 5 will be explained in detail with reference to FIGS. 2 and 3. Reference numeral 9 denotes a dispensing arm, which has a length necessary for guiding the articles 8, and has an article contacting surface. It has a smooth finish. Also, 10 is a pin fixed to the approximate center of the payout arm 9, 12 is a shaft fixed to the side frame 20 of the sorting conveyor 4, 11 has one end attached to the pin 10, and the other end attached to the shaft 12, respectively. The fitted swing arm, 13 is a shaft fixed to the rear end of the payout arm 9, 15 is a shaft fixed on the frame 20 directly below the sorting conveyor 4, 14 has one end connected to the shaft 13 and the other end to the shaft 15. Support arms 19 are loosely fitted into the respective support arms, and 19 is an electric motor equipped with a brake and a speed reducer, and is attached to the frame 20. Further, 18 is a drive disk rotated by an electric motor 19;
17 is a pin fixed on the driving disk 18, and 16 is a connecting rod having one end loosely fitted to the pin 17 and the other end loosely fitted to the pin 10.

Next, the operation of the sorting device in this embodiment will be explained. When the articles 8 are conveyed by the feed conveyor 1 and reach the timing conveyor 2, an operator in the operation room 3 gives an instruction as to the sorting destination. The articles 8 are transferred to the sorting conveyor 4 while maintaining the necessary intervals for sorting.
conveyed above. In addition, the article 8 is stored in
Tracking is provided by a tracking storage device (not shown).
When the article 8 reaches the sorting device 5 position (solid line position in Figure 2), a start command is sent from the tracking storage device to the electric motor 1.
9, the electric motor 19 starts and drives the drive disk 1.
8 rotates once in the direction of the arrow (counterclockwise). Meanwhile, the swing arm 11 swings counterclockwise about the shaft 12 via the pin 17, connecting rod 16, and pin 10 from the solid line position to the two-dot chain line position, and then clockwise from the two-dot chain line position. It swings and returns to the solid line position.
At the same time, the support arm 14 swings clockwise about the shaft 15 via the pin 10, the dispensing arm 9, and the shaft 13 from the dashed line position to the two-dot chain line position, and then swings counterclockwise from the two-dot chain line position. Move and return. That is, the swing arm 11 reciprocates on an arc A centered on the shaft 12, and the support arm 14 reciprocates on a circle B centered on the shaft 15. Therefore, the payout arm 9 supported by these pins 10 and 13 gradually changes the inclination angle θ while moving in the conveying direction of the sorting conveyor 4 from the solid line position.
is increased to reach the position shown by the two-dot chain line, and from the position shown by the two-dot chain line, the reverse operation is performed to return to the position shown by the solid line. Moreover, for a while after the pin 17 on the drive disk 18 rotates from the solid line position in FIG. Since the dispensing arm 9 is hardly displaced in the direction perpendicular to the conveyance direction, the dispensing arm 9 is maintained in the inclined state shown by the two-dot chain line during that time. This operating characteristic is shown in FIG.
On the other hand, the article 8 is moved in the conveying direction of the sorting conveyor 4 while the payout arm 9 is held in the above-mentioned inclined state, and while the speed difference between the article 8 and the sorting conveyor 4 is decreasing,
It is discharged with gentle contact. In addition, electric motor 1
9, when the drive disk 18 rotates once as described above and is detected by a detector (not shown), the brake is activated to stop the rotation.

〔effect〕

Since the present invention is constructed as described above, the dispensing arm is operated in cooperation with the swinging arm and the support arm during the predetermined time required to dispense the articles conveyed by the sorting conveyor. It maintains an inclined state at almost the same angle with respect to the sorting conveyor, and swings in the same direction as the article and comes into contact with it, which greatly reduces the impact force on the article and prevents damage. can.

[Brief explanation of drawings]

Fig. 1 is a plan view schematically showing an embodiment of the sorting device according to the present invention, Fig. 2 is a plan view showing its details, Fig. 3 is a side view, and Fig. 4 is a diagram showing the dispensing arm of the sorting device. It is an explanatory diagram of operating characteristics. FIG. 5 is a perspective view showing an example of a conventional sorting device, FIG. 6 is an explanatory diagram of its operation, FIG. 7 is a perspective view of another example of the conventional sorting device, and FIG. 8 is an explanatory diagram of its operation, FIG. 9 is a diagram explaining the operating characteristics of the dispensing arm of the sorting device shown in FIGS. 5 and 6, and FIG. 10 is a diagram explaining the operating characteristics of the dispensing arm of the sorting device shown in FIGS. 7 and 8. be. 8...Goods, 9...Dispensing arm, 11...
Swinging arm, 14... Support arm, 16... Connection rod, 18... Drive disk.

Claims (1)

[Scope of utility model registration request] a frame, a sorting conveyor supported by the frame in parallel with the frame, a chute on the outlet side installed on one side of the sorting conveyor, and a chute on the other side of the sorting conveyor opposite to the outlet side. In the sorting device, the sorting device includes a drive disk which is rotated via a drive shaft by an electric motor provided at a suitable position near the payout arm side of the frame, and one end of which is connected to the drive disk and the other end of which is rotated by a drive shaft. a connecting rod that is pivotally supported at approximately the center of the payout arm and transmits power; a swinging arm that has one end pivoted at an appropriate position on the frame near the distal end of the payout arm; The other end of the frame is pivoted to the rear end of the dispensing arm at an appropriate position near the rear end of the dispensing arm, and when the swinging arm rotates in an arc toward the dispensing direction, and a support arm that rotates in an arc shape and cooperates with the swinging arm to maintain the dispensing arm at approximately the same angle for a predetermined time period required for dispensing the article at the dispensing position. A sorting device characterized by the fact that