JPS61197310A - Conveyer for changing speed of article - Google Patents

Abstract

PURPOSE:To feed out articles at expected intervals and in an expected posture by providing an upstream conveying device and a downstream conveying device in the moving direction of an article in such a manner that the space of moving members and the moving speed thereof in one conveying device are set larger than those in the other conveying device. CONSTITUTION:A conveyer comprises a guide plate 2 for guiding an article 1 at the upper surface thereof, and a plurality of conveying devices 4-6 for moving an article in contact therewith at a designated speed along the upper surface of the guide plate 2. The plural conveying devices are sequentially disposed from the upper course to the lower course in the moving direction of an article. The respective conveying devices are provided with moving members 4d, 5e, 6d which are continued endlessly at a designated space, and adapted to move an article in contact therewith at the same speed. The upstream conveying device and the downstream conveying device in the moving direction of an article are set in such a manner that the space between the moving members are the moving speed thereof in one conveying device are larger than those in the other conveying device. In this arrangement, the space between the front and rear articles and the posture of the articles can be kept as expected to feed the articles.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a conveyor device for changing the speed of articles, and in particular, the article is guided on the upper surface of a guide plate and is transferred while being passed by a plurality of conveying devices. By increasing or decreasing the moving speed of the article, the article is sent to the next process, and by decreasing the speed, the accuracy of the transfer position of the article when transferring to the next process is improved.

This prevents damage to the product, or increases speed to enable high-speed processing in the next process.

[Conventional technology]

A conveyor that conveys items is designed to convey the items at the same speed along its entire length. Therefore, from the time the item is brought into the starting end of the conveyor until it is taken out from the end to the next process, It is always transported at the same speed.

[Problem that the invention seeks to solve]

For this reason, in the conventional technology, there is a difference between the speed of the article in the process before being transferred to the conveyor and/or the speed of the article in the process after being carried out from the conveyor, and the conveyance speed of the conveyor. In some cases, the moving speed of the item changes rapidly when the item is transferred from the previous process to the conveyor and/or when the item is transferred from the conveyor to the next process, resulting in an excessive load on the item. There have been problems in that the product may be damaged due to the pressure applied, and the transfer position of the product may be misaligned due to the inertia of the product.

In addition, in order to solve this problem, multiple conveyors are connected in series so that the start end of the next conveyor faces below the end of one conveyor, and the speed of each conveyor in series is adjusted to It is also conceivable to mutually change the speed so that it increases or decreases in the direction, but according to such a method, the speed of each conveyor is simply different.
When the movement of articles is gradually decelerated, there is a problem that the amount of articles fed onto the decelerated conveyor increases and the articles accumulate there. In addition, when an item is transferred from one conveyor to the next, the item falls from the end of the conveyor to the next conveyor, resulting in damage to the item or disturbance of the posture of the item, and the transfer of the item between conveyors. Sometimes there is a problem in that since there is no means to control the spacing between the sequentially transferred items, the spacing between the items may be disturbed when the items are transferred to the next conveyor.

This invention was made by focusing on the problems of the conventional method, and changes the conveyance speed of the article so that the article received at a high speed can be sent at a lower speed. Alternatively, the speed of the items placed in the receiver may be increased while the speed is low, and the speed of the items placed in the receiver may be increased to send them out while maintaining the distance between the front and back items and the posture of each item as specified. The purpose is

[Means for solving problems]

The conveyor device for changing the speed of articles according to the present invention includes a guide plate that guides the articles on the upper surface, and a plurality of conveying devices that are in contact with the articles and move the articles at a predetermined speed along the upper surface of the guide plate. The devices are installed sequentially from top to bottom along the direction of movement of the item, and each conveying device has moving members that are continuous at predetermined intervals in an endless manner and that touch the item and move the item at the same speed. The upper conveying device and the lower conveying device in the article moving direction are configured such that one of the conveying devices has a larger distance between the moving members and a larger moving speed than the other conveying device.

[Effect]

The articles fed to the guide plate forming this conveyor device are guided by the upper surface of the guide plate and move from the upper side to the lower side in the direction of movement. In the course of this movement, the goods are first moved by a first transport device at a speed and interval set by that transport device, then passed to a second transport device, and
Here too, the moving device continues to move at the set speed and interval.

Such movement is effected by a moving member of the moving device at the same speed as the movement of this moving member and at intervals corresponding to the mutual spacing of the moving members. A good conveyance device and a bad conveyance device have different moving speeds of their moving members and different mutual intervals, so there are conveyance devices whose moving members have large intervals and moving speeds, and those whose moving speeds are small. Between the moving device and the moving device, the moving speed of the articles and the distance between the articles change.

In a conveyance device in which the moving speed of the moving members is high, the intervals between the moving members are also large, and in a conveyance device in which the moving speed of the moving members is slow, the intervals between the moving members are also small. Therefore, the amount of items transported per unit time is the same regardless of which transport device is used.

Therefore, in the variable speed conveyor device of the present invention, the speed of the article at the time of delivery changes in the receiver relative to the speed of the article at the time of entry, and the speed of the receiver changes between the speed of the product at the time of entry and At the time of sending out, the amount of goods passing through is the same in unit time.

〔Example〕

The drawing shows an embodiment of the present invention, and ▪ indicates an article to be transported. In this embodiment, this item 1 is a noodle ball of instant noodles in a cup, and this item 1, which has been heat-treated and cooled, is placed on the upper surface of the guide plate 2 from the right side in Fig. 1.2. It is designed to slide in one direction.

The guide plate 2 here has six rows of passages 2a to 2f, each passage 2a to 2f being partitioned by a side wall, in which the articles 1 are separated.
are individually received in the passages 2a to 2f. The guide plate 2 is installed approximately horizontally, and the machine frame 3 is arranged on both sides of the guide plate 2 in the width direction. In this machine frame 3, three transport devices 4, 5.6 are installed.
They are sequentially installed along the moving direction of the item l.

The first conveying device 4, which is most conveniently installed along the moving direction of the article 1, has two rotating shafts 4a installed on the machine frame 3, a chain block 4b fixed to the rotating shafts 4a,
Between the chain sprockets l-4b of both rotating shafts 4a, there is an endless chain 4c whose rack is passed between each side of the guide plate 2, and a moving member 4d consisting of a horizontal bar whose rack is passed between the chains 4c on both sides. Equipped with Although not shown, the chain 4c is supported from below by a rail fixed to the machine frame 3 between the chain sprocket and the bottom 4b to prevent the chain from loosening in the middle. Further, the moving member 4d is located at a position lower than the top surface of the item 1, and is configured to push the item 1 from the rear side.

The second conveying device 5 includes, below the guide plate 2, three rotating shafts 5a installed on the machine frame 3, a chenos prop 5b fixed to the rotating shafts 5a, and each rotating shaft 5a. The endless chain 5c is attached to the chain 5c which is fixed to the chain 5b.
The rack is provided with a horizontal bar 5d that is passed between the chinos 5C on both sides, and a moving member 5e consisting of a finger that is fixed to the horizontal bar 5d and projects from a slit 7 formed in the guide plate 2 to the upper surface of the guide plate 2. . While the moving member 5e is moving horizontally, its upper end protrudes above the upper surface of the guide plate 2, so that the article 1 on the upper surface of the guide plate 2 is pushed. The range in which the moving member 5e moves horizontally is from the terminal end of the first conveying device 4 to the starting end of the third conveying device 6, which will be described later, and between the starting end of the second conveying device 5 and the first The terminal end of the conveying device 4 overlaps, and the terminal end of the second conveying device 5 overlaps the starting end of the third conveying device 6.
The conveyance device 5 is configured to receive the article 1 pushed by the moving member 4d of the first conveyance device 4, and continue to push it by the moving member 5e.

The third conveyance device 6 is installed above the guide plate 2 and below the first conveyance device 4, and similarly to the first conveyance device 4, the third conveyance device 6 has a rotating shaft 6a, a Cheno sprocket 6b, and a Cheno sprocket. 6
c, and a moving member 6d made of a horizontal bar. The moving member 6d is configured to move at the same height as the moving member 4d of the first conveying device 4 with respect to the upper surface of the guide plate 2.

Respective axis of rotation 4a, 5a, 5a of each transport device 4.5.6
The wheels are classified into a drive shaft and a driven wheel, and each drive shaft is connected to the same drive source so that they operate together. Also each chain brocket 4b.

The number of teeth of 5b and 6b is 12, and the chain sprocket 4b rotates at a rotation ratio of 8/12 rotations, and the chain sprocket 6b rotates at 5/12 rotations for 1 rotation of the chain sprocket 4b. It is.

Furthermore, each of the chenos 4c, 5c, and 6c consists of a roller chain with the same configuration, and the chenos sprockets 4b, 5b,
Since the rotation ratio of 6b is as described above, the chenno 4c is 1
While the chino 5c moves a distance equivalent to 2 links, the chino 5c moves a distance equivalent to 8 links, and the chino 6c moves a distance equivalent to 5 links. 1 for the length equivalent to 12 links
Therefore, the pitch of each moving member 4d of the first conveying device 4 is 12 links. Further, the horizontal bar 5d of the second conveying device 5 similarly has a pitch of 8 links, and the moving member 6d of the third conveying device 6 similarly has a pitch of 5 links.

Thus, in the first to third conveying devices 4, 5.6,
As the speed of the transport devices 1.2.3 gradually decreases, the pinch of the moving members 4d, 5e, and 6d also decreases, so each transport device 4. 5. 6, the conveyance amount of the article 1 within a unit time becomes the same, and the speed of the article 1 moving on the upper surface of the guide plate 2 gradually decreases.

The starting end of another conveyor device 8 faces below the guide plate 2, and the article 1 is transferred from the terminal end of the guide plate 2 to the conveyor device 8. The conveyor device 8 extends in a direction perpendicular to the deceleration conveyor device according to the present invention, and, like the deceleration conveyor device, this conveyor device 8 has a guide plate 9 having six passages 9a to 9f. and a moving member 8d having the same pitch and speed as the moving member 6d of the third conveyance device 6.

Since the deceleration conveyor device and the conveyor device 8 intersect with each other at right angles, the guide plate 2 runs along the diagonal line connecting the inner corners of both conveyor devices.
2f are aligned so that the articles 1 in each of the passages 2a to 2f are transferred to the corresponding passages 9a to 9f, respectively.

The intersection of this deceleration conveyor device and the conveyor device 8 is particularly shown in FIG. That is, the article 1 moved by the third conveyance device 6 reaches the tip of each of the passages 2a to 2f, and moves from the inclined part to each passage 9a of the lower guide plate 9.
~9f.

In the portions of each of the passages 9a to 9r in which the article 1 is received, the receiver of the article 1 is inclined along the insertion direction, so that the impact when the article 1 is transferred is reduced. In addition, stoppers 10 are provided at the lower portions of the slopes of the passages 9a to 9f, and these stoppers 10 prevent the transferred items 1 from being removed.
Stop receiving.

There is a gap between each passage 9a-9f and the respective stopper 10 through which small pieces of the article 1 can be removed from the upper surface of the passages 9a-9f. Each of the passages 9a to 9f is inclined as described above only in the receiving portion of the article 1, and is horizontal in other portions.

In addition, in Fig. 3, 11 is the machine frame, 8a is the chino, 8
d is a moving member, and the articles 1 in the passages 9a to 9f are pushed by the upper one of the upper and lower moving members 8d. In FIG. 1, the moving member 8d is omitted.

Next, to explain how the item 1 is transported, the guide plate 2
The articles 1 to be supplied above are received in the first conveyor device 4 six at a time. The conveying speed of this first conveying device 4 corresponds to the speed at which the article 1 is fed onto the guide plate 2 from the previous process. Since the pitch of the moving members 4d of the first conveying device 4 is large as described above, a total of six items 1 are supplied to each of the passages 2a to 2f in - times.
Even if the insertion timing is slightly different, the receiver will be pushed by the same moving member 4d.

When the article 1 pushed on the upper surface of the guide plate 2 by the moving member 4d reaches the second conveyance device 5, it is pushed by the moving member 5e and further advances on the upper surface of the guide plate 2. At this time,
The moving member 5e of the second conveyance device 5 is the moving member 4d.
Since the moving speed is smaller, the forward speed of the item 1 is reduced. However, the mutual interval (pitch) between the moving members 5e of the second conveying device 5 is smaller than that of the moving members 4d, and the number of articles per unit time by the second conveying device 5 is smaller than that of the moving members 4d.
Since the amount of transport is the same as that of the first transport device 4, even if the transport speed of the item 1 decreases, the item 1 will not stagnate in the second transport device 5.

The article 1 transported by the second transport device 5 is then transferred to the third transport device 5.
The receiver is placed in the conveying device 6, and thereby the upper surface of the guide plate 2 is further pushed. Since the moving speed of the moving member 6d of the third conveying device 6 is further reduced, the speed of the article 1 is further reduced. However, since the pitch of the moving member 6d is correspondingly reduced, the amount of transport by the third transport device 6 per unit time is the same as that of the first transport device 4 and the second transport device 5. , item 1 never stagnates.

The article 1 pushed by the moving member 6d is pushed to the end of each of the passages 2a to 2f of the guide plate 2, and then transferred and supplied onto the guide plate 9 of the conveyor device 8.

The variable speed conveyor device of this embodiment reduces the moving speed of the article 1 as described above to soften the impact that occurs when the article 1 is transferred to the next successive conveyor device 8, thereby preventing damage to the article 1. This prevents unexpected movement to other positions due to kinetic inertia. However, the present invention can be widely applied not only to such cases, but also to cases where it is necessary to change the speed of the article between the front and rear steps of the variable speed conveyor device.

Therefore, contrary to the above embodiment, by decreasing the speed and pitch of the moving member in the first conveying device and increasing the speed and pitch of the moving member in the second conveying device, the speed of the article can be gradually increased. It is also possible to

In the explanation so far, the guide plate 2 is horizontal in the front-rear direction, and the moving member pushes the item 1 on its upper surface. If the item l is inclined downwardly toward the guide plate 2 so that it slides down on the guide plate 2 due to its own weight, each moving member 4d,
5e and 6d are not forms for pushing the item 1, but for pushing the item 1.
The article 1 is supported from the front side, and the speed of its sliding movement is suppressed to be the same as the speed of each moving member.

Further, in the above embodiment, noodle balls of instant noodles in a container were applied to the item 1, but it goes without saying that the present invention can be applied to various other items.

〔Effect of the invention〕

As explained above, in this invention, the conveying speed of the article is changed, and the received article is delivered at a high speed while the received article is sent out at a low speed, or the article is received at a low speed and sent out. The loaded items are sent out at a high speed, and
There is a special effect in that the distance between the front and rear items and the posture of each item can be maintained in a predetermined manner.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is a partially enlarged view of FIG. 2.

Claims (4)

[Claims] (1) Consisting of a guide plate that guides the item on the top surface, and a plurality of conveyance devices that are in contact with the article and move the item at a predetermined speed along the top surface of the guide plate, and the plurality of conveyance devices move along the moving direction of the item. They are installed in order from the top to the bottom, and each conveyance device is provided with a moving member that is continuous at a predetermined interval in an endless manner and moves the article at the same speed as the article in contact with the top conveyance device in the article movement direction. The lower conveyor is a variable speed conveyor for goods, characterized in that one conveyor has a larger distance between moving members and a larger moving speed than the other conveyor. (2) The distance between the moving members and the moving speed of the upper conveying device in the article moving direction are made larger than that of the lower conveying device, so that the article is decelerated between both conveying devices and A conveyor device for changing the speed of an article according to claim 1, wherein the article conveyance amount per unit time is the same. (3) The conveyance device has a plurality of parallel endless bodies and a plurality of horizontal bars installed between the endless bodies and extending in a direction across the guide plate, and a plurality of horizontal bars attached to the horizontal bars or horizontal bars. A conveyor device for changing the speed of an article according to claim 1 or 2, wherein the moving member is constructed so that the article is pushed by the member. (4) An upper conveyance device and a lower conveyance device are such that the endless body of one conveyance device is above the guide plate, the endless body of the other conveyance device is below the guide plate, and the endless body of the latter conveyance device is above the guide plate. The moving member faces above the guide plate through a slit formed in the guide plate, and the continuous ends of both conveyance devices overlap each other. Conveyor device for variable speed of the items described in .