JPH07291420A - Bucket conveyor - Google Patents

Abstract

PURPOSE:To enable even adhesive articles to be discharged without mutually sticking the articles by detachably fitting an auxiliary bucket formed so as to have a shallower bottom than a bucket and also to have a plane-shaped bottom surface, to the opening part of the bucket. CONSTITUTION:A bucket is constituted in such a way that an auxiliary bucket 30 has been fitted on the upper part of the bucket body 20. When the auxiliary bucket 30 is fitted to the bucket body 20, first, the locking surface 37a of the U-shaped hook 37 that has been fixed to the auxiliary bucket 30 is engaged with the peripheral part of the projected flange 24a, so that the projected flange surface of the auxiliary bucket 30 is fitted to the projected flange 24a. Next, a stopper part 38a is abutted on the peripheral part of a lower flange 25 in a taper shape, and the flange surface 35 of the auxiliary bucket 30 is pressed downward. Thereby, the stopper part 38a moves up to the under surface of the flange 25 while expanding outward by the elasticity of a S-shaped hook 38, and engages with the flange 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bucket conveyor in which a large number of buckets are circulated and transferred so that articles loaded in a bucket at an article loading section are conveyed to an article discharging section and discharged.

[0002]

2. Description of the Related Art A bucket conveyor used for transporting various articles from a low-loading section to a high-loading section has a support shaft between two endless chains arranged in parallel. A large number of buckets are rotatably attached, and while the endless chains are traveling, the buckets are transferred along a circulation path including the loading section and the discharging section, and the buckets are inverted by the discharging section to move the inside of each bucket. The above-mentioned article is discharged downward, and since it is a device suitable for conveying and discharging the article to a high place, it is often used for supplying the article to a tall combination weighing device.

The bucket generally has an inverted triangular cross section which is gradually tapered from the wide opening at the top toward the bottom at the bottom. In addition, the bottom of the bucket has a stable shape during the transfer. It is formed to be relatively deep and the center of gravity of the bucket is set below the support shaft.

[0004]

In the above-described combination weighing device, from the viewpoint of the weighing accuracy, it is necessary to evenly distribute the supplied articles to a plurality of weighing devices. It is necessary to discharge the articles as individually as possible, but the conventional bucket as described above has the following disadvantages.

That is, the bucket is transferred with the opening up and the bottom down so that the articles to be conveyed do not fall down from the time when the articles are loaded in the loading section to the time when the articles are discharged. However, since the bottom part that receives the articles is tapered as described above, the loaded articles are concentrated and accumulated on the bottom part inside the bucket, where gravity and vibration forces during the transfer of the bucket are directed in the bottom direction. It will be added to. As a result, in the case of sticky articles such as "shirasu" and "salt kelp", the articles are pressed against each other during transport and solidified, and the inconvenience that the articles cannot be supplied to the combination weighing device in an unraveled state. , The article adheres to the bottom,
Even if the bucket is turned over at the discharging section, there is a problem that the entire amount of the loaded articles is not discharged.

In such a case, it is conceivable that a general conveyor for transportation is used in an inclined state and the articles are spread on the conveyor so that the articles are conveyed without being pressed against each other. In order to discharge at a high place, a long conveyor must be used, and a wide space for installing the conveyor is required, which is not preferable.

Further, since the bottom portion is deeply formed in order to lower the position of the center of gravity of the bucket, the fall distance at the time of loading an article becomes long, and as a result, a soft article such as "shirasu" has an impact at the time of loading. This causes a problem that the shape is broken and the commercial value is lost.

Therefore, the present invention provides a bucket conveyor capable of discharging adhesive articles without sticking the articles to each other and transporting soft articles without impairing their commercial value. The challenge is to provide.

[0009]

That is, the invention described in claim 1 of the present application (hereinafter referred to as the "first invention") has a large number through a supporting shaft between two endless chains arranged in parallel. In the bucket conveyor in which the buckets are rotatably attached, an auxiliary bucket that is formed shallower than the bottom of the bucket and has a flat bottom surface is detachably attached to the opening of the bucket. And

The invention according to claim 2 of the present application (hereinafter referred to as the "second invention") is characterized in that the auxiliary bucket of the first invention is provided with a net-like portion on the flat bottom surface thereof. .

[0011]

According to the first aspect of the invention, since the auxiliary bucket is attached to the opening of the bucket attached between the endless chains, the thrown articles are received not on the bottom of the bucket but on the bottom of the auxiliary bucket. It will be. Further, since the bottom surface of this auxiliary bucket is formed shallower than the bottom portion of the bucket, the drop distance at the time of insertion is shortened, damage to the soft article is reduced, and the bottom surface is flat. Therefore, the articles are spread and placed without being accumulated, and vibration force is not concentratedly applied between the articles.As a result, even adhesive articles can be loosened without sticking to each other during transportation. It will be discharged in the state of being discharged.

Further, since this auxiliary bucket can be attached and detached freely, it is possible to attach one bucket conveyor by attaching the auxiliary bucket as needed to an existing bucket without newly manufacturing another bucket or conveyor. It can be used both for transporting a flexible article or a flexible article and for transporting a normal article without affecting the cost of the article.

Further, since the auxiliary bucket is simply attached to the existing bucket, the posture stability during the transfer of the bucket and the space-saving characteristics originally possessed by the bucket conveyor are maintained as they are.

On the other hand, according to the second aspect of the invention, since the net-like portion is provided on the flat bottom surface of the auxiliary bucket, the contact area between the bottom surface and the placed article is small, and the article is the bottom surface. It becomes difficult to adhere to. Therefore, even an adhesive article does not remain on the bottom surface when the bucket is turned over, and the entire amount of the article conveyed is smoothly discharged from the opening.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall view showing the outline of a bucket conveyor 1 according to this embodiment. The main body of the bucket conveyor 1 is a lower frame 2 extending in the horizontal direction, and an intermediate member standing upright from the lower frame 2. The lower frame 2 includes a frame 3 and an upper frame 4 protruding horizontally from the upper end of the intermediate frame 3.
The upper surface of and the lower surface of the protruding end of the upper frame 4 are opened,
They are referred to as an article input section A and an article discharge section B, respectively.

Inside the conveyor 1, two endless chains 5 and 5 are arranged in parallel on both sides, and the chains 5 and 5 are installed inside the lower frame 2 and have a motor and a speed reducer. Driven by the driving device 6 that has,
The circulating transfer paths provided over the frames 2, 3 and 4 are guided by the pair of sprockets 7, 7 to 12 and 12 to run in synchronization with each other.

That is, the chains 5 and 5 have passed through the upper portion of the lower frame 2, that is, the article inputting portion A, and then have been turned upward by the first sprockets 7 and 7 to rise in the intermediate frame 3. The second sprocket 8, 8 is rotated in the horizontal direction again to travel in the upper portion of the upper frame 4, and further, at the projecting end of the frame 4, the third sprocket 9, 9 is rotated 180 degrees downward to rotate the article. It reaches the discharge part B. Then, after traveling in the opposite direction from the discharge portion B to the lower portion of the upper frame 4, the fourth sprocket 10,
It is turned downward by 10 and descends in the intermediate frame 3, and is horizontally turned again by the fifth sprockets 11 and 11 to run under the lower part of the lower frame 2 and further at the end of the frame 2. 6 sprockets 12, 12
Is rotated 180 degrees upward to return to the article loading section A.

A large number of support pins (not shown) are projected from both sides of the endless chains 5 and 5 at a constant pitch so as to face each other. Each one 14 is attached so as to be rotatable around the support shaft 13. These buckets 14 ... 14 are transferred along the circulation transfer route by the traveling of the endless chains 5 and 5, but after the articles are loaded in the loading section A and before reaching the discharging section B, they are opened by their own weight. The items are transferred with the parts facing upward so that the articles inside do not spill outside. Then, after the bucket 14 is inverted to the posture in which the opening portion is directed downward in the discharging portion B and discharges the article, until the bucket 14 returns to the input portion A again, the opening portion is opposed to its own weight and the bucket conveyor 1 Of the buckets 14 and 14, the front and rear buckets 14 and 14 are in close proximity to each other while the articles are being transferred through the article loading section A, and the articles loaded from above are transferred to the buckets 14 and 14. It is designed not to fall from the gap.

Next, the structure of the bucket 14 will be described. The bucket 14 has a structure in which the auxiliary bucket 30 shown in FIGS. 4 and 5 is attached to the upper portion of the bucket body 20 shown in FIGS. 2 and 3. .

Of these, the bucket body 20 has an opening 21 on the upper surface, and a bottom 22 is provided below the opening 21 so as to face the opening 21. The side walls 23, 23 interposed between the opening portion 21 and the bottom portion 22 gradually approach each other downward from the wide opening portion 21 and continue to the bottom portion 22, and the bottom portion 22 receives the angle. The bucket body 20 is further curved downward as it is, and is formed so that the entire bucket body 20 has a substantially inverted triangular sectional shape.

On the other hand, a flange that uniformly projects outward is provided at the edge of the opening 21, and one of the flanges 24 in the longitudinal direction of the flange 21 projects further obliquely downward.
4a and the other longitudinal flange 25 facing the flange 24 is formed at a lower position than the other flanges. As a result, the article loading section A
When the buckets 14 are adjacent to each other when passing through, the projecting flange 24a of the preceding bucket 14 covers the lower flange 25 of the following bucket 14 above, and there is no gap between the buckets 14 and 14. Therefore, the articles are surely put into one of the buckets 14.

The small side wall 2 having an inverted triangular shape is also provided.
Support shafts 28 having pin holes 27 for fitting with support pins (not shown) arranged on the endless chains 5 and 5 are provided on the upper portions of the bucket bodies 2 and 6, respectively.
0 is attached to the endless chains 5 and 5 rotatably around the support pins and the support shafts 28 and 28. Furthermore, this bucket body 2
No. 0 is provided with guide projections 29 ... 29 for controlling the posture of the bucket 14 during transfer at predetermined positions of the small walls 26, 26.

Since the support shafts 28, 28 are provided above the small walls 26, 26, respectively, and the bottom portion 22 is formed relatively deep, the center of gravity of the bucket body 20 is lower than the support shaft 28. Therefore, the transfer posture in the normal state with the opening 21 facing upward is stabilized.

On the other hand, the auxiliary bucket 30 attached to the bucket body 20 has a structure in which a flat plate is bent so that six different surfaces are formed, as shown in FIGS. The surface is the bottom surface 31 of the auxiliary bucket 30, and the side surfaces 32 are erected obliquely upward so as to be separated from both sides of the bottom surface 31.
33, flange surfaces 34 and 35 horizontally extending outward from the upper ends of the side surfaces 32 and 33, and a protruding flange surface 3 protruding obliquely downward from one flange surface 34.
6 and.

When the auxiliary bucket 30 is placed on the opening 21 of the bucket body 20, the flange surfaces 34 and 35 respectively contact the longitudinal flange 24 and the lower flange 25, respectively. So that the side surfaces 32 and 33 are in close contact with the inner surfaces of the side walls 23 and 23, respectively, and the bottom surface 31 is fitted into the bucket body 20 and positioned at a predetermined height, and the length in the longitudinal direction is the bucket body. It is set based on the respective dimensions of the bucket body 20 so as to be substantially the same as the longitudinal length of the inner space 20.

Further, at this time, the downward projecting angles of both are set to be the same so that the projecting flange surface 36 and the projecting flange surface 24a are substantially in close contact with each other, and the projecting flange surface 36 which is the four corners of the auxiliary bucket 30. Further, a total of four mounting hooks 37, 37 and 38, 38 are fixed to both ends of the flange surface 35, respectively. In the mounting hook 37 on the side of the protruding flange surface 36, one of the surfaces facing each other is formed by bending a flat plate into a U shape and engaging the locking surface 37.
a, and the other surface is fixed to the protruding flange surface 36 so that the locking surface 37a is located away from the lower surface of the protruding flange surface 36 by a distance substantially corresponding to the thickness of the protruding flange 24a. In the mounting hook 38 on the flange surface 35 side, after bending the flat plate into a substantially S shape,
One end surface is fixed to the flange surface 35, and a surface interposed between the end surface and the other end surface extending obliquely outward is bent to form a stopper portion 38a slightly protruding inward.

Here, both hooks 37 and 38 are formed of a flat plate having elasticity so that they can be bent around each bent portion as a fulcrum, and the engaging surface 37a of the U-shaped hook 37 is the protruding flange surface 36. It is almost parallel.

Further, the bottom surface 31 of the auxiliary bucket 30
A large number of round holes are formed in each of the holes, and meshes 39 ... 39, 40 ... 40 are attached to the entire surface of each round hole so that the articles received on the bottom surface 31 do not fall. The size of this mesh is selected according to the size of the article to be conveyed.

To attach the auxiliary bucket 30 to the bucket body 20 described above, as shown in FIG. 6, first, the engaging surface 3 of the U-shaped hook 37 fixed to the auxiliary bucket 30 is fixed.
7a is engaged with the edge portion of the protruding flange 24a, the protruding flange surface 36 and the protruding flange 24a are aligned, and the stopper portion 38a protruding inward of the S-shaped hook 38 is tapered to the edge portion of the lower flange 25. Abut. And
By pressing the flange surface 35 of the auxiliary bucket 30 downward, the stopper portion 38a slides along the edge portion of the lower flange 25 while expanding outward due to the elasticity of the S-shaped hook 38, and as shown in FIG. When it moves to the lower surface side of 25, it will engage with the flange 25.

On the contrary, the auxiliary bucket 30 is replaced with the bucket body 20.
When detached from the upper end, the elasticity of the S-shaped hook 38 is used to bend the free end surface of the hook 38 outward and lift it upward to remove the engagement between the stopper portion 38a and the lower flange 25. After the flange surface 35 is separated from the lower flange 25, the engagement surface 37a of the U-shaped hook 37 and the protruding flange 24a are disengaged by pulling out the auxiliary bucket 30 in a slightly inclined state in an obliquely downward direction. Do it.

As described above, the auxiliary bucket 30 is attachable to and detachable from the bucket body 20 and can be attached if necessary. Further, the auxiliary bucket 30 is locked to the flange of the bucket body 20 by the four attachment hooks 37, 37 and 38, 38, and is attached without falling even if the bucket body 20 is reversed at the article discharge section B.

When the auxiliary bucket 30 is mounted, the opening 21 of the bucket body 20 and the upper surfaces of the flanges 24, 24a, 25 are covered with the auxiliary bucket 30 as shown in FIG. The article X thrown into 14 does not fall onto the bottom portion 22 of the bucket body 20, but is received by the bottom surface 31 of the auxiliary bucket 30. At this time, as shown in FIG. 7, since the bottom surface 31 is located at a predetermined height above the bottom portion 22 of the bucket body, in other words, it is formed shallower than the bottom portion 22. The impact distance is reduced and the impact force is reduced. As a result, even a soft article such as "Shirasu" is not likely to be damaged and the commercial value is not lost.

The bottom surface 31 is the bottom portion 22 of the bucket body.
Since it is not a downwardly curved tapered shape but a flat plate shape that spreads in the horizontal direction, the loaded articles X are spread and placed on the bottom surface 31 and transported without being thickly accumulated. . As a result, the weight of stacked articles per unit area does not increase, and even if vibration force during transportation is applied, the crimping force acting between the articles decreases.
Even an adhesive article such as "salt kelp" can be discharged in a loose state without the articles sticking to each other during transportation.

On the other hand, since a large number of mesh portions 39 ... 39, 40 ... 40 are provided on the bottom surface 31 on which the article is spread and placed, the contact area between the bottom surface 31 and the article X is small. As a result, it becomes difficult for the article X to adhere to the bottom surface 31. As a result, even an adhesive article does not remain on the bottom surface 31 when the bucket 14 is inverted, and the entire amount of the article conveyed is smoothly opened at the opening 21 at the discharge section B.
Will be discharged from.

Further, as the bucket body 20 to which the auxiliary bucket 30 is attached, a bucket that has been generally used in the past can be used. Therefore, when carrying ordinary articles other than the above-mentioned soft articles and adhesive articles. To do this, it is only necessary to remove the auxiliary bucket 30. As a result, without holding a plurality of types of buckets or conveyors for each conveyed article, only the auxiliary bucket 30 is prepared, and this is detached from the existing bucket as required,
One bucket conveyor can be used for both the special specification and the normal specification, which does not affect the cost of the product, the posture stability of the bucket 14 during transfer, and the bucket conveyor 1 The original characteristic of space saving is maintained as it is.

[0037]

As described above, according to the present invention,
Instead of separately preparing a new bucket conveyor with special specifications, it is possible to use this one bucket conveyor for both transporting adhesive and flexible articles and transporting ordinary articles. it can.

When the adhesive articles are conveyed, the articles are not solidified and can be smoothly discharged in a loosened state, and when the flexible articles are conveyed, damage to the articles at the time of insertion is reduced. Will not damage the product value.

Further, even when the adhesive article or the flexible article is conveyed, the posture stability during the transfer of the bucket and the space-saving characteristics originally possessed by the bucket conveyor are maintained as they are.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing a bucket conveyor according to an embodiment of the present invention.

FIG. 2 is a plan view showing a bucket body used for the bucket conveyor.

FIG. 3 is likewise an enlarged side view showing the bucket body.

FIG. 4 is a plan view showing an auxiliary bucket attached to the bucket body.

FIG. 5 is an enlarged partial sectional side view of the auxiliary bucket.

FIG. 6 is an explanatory view showing how the auxiliary bucket is attached to and detached from the bucket body.

FIG. 7 is a partial cross-sectional view showing a state in which the auxiliary bucket is attached to the bucket body.

FIG. 8 is a plan view showing a state in which the auxiliary bucket is attached to the bucket body.

[Explanation of symbols]

 1 Bucket Conveyor 14 Bucket 20 Bucket Main Body 21 Opening 22 Bottom 30 Auxiliary Bucket 31 Bottom 37,38 Mounting Hook 39,40 Mesh

Claims (2)

[Claims] 1. A bucket conveyer in which a large number of buckets are rotatably mounted between two endless chains arranged in parallel via a support shaft, and the bucket conveyor is formed shallower than the bottom of the bucket and has a flat plate shape. A bucket conveyor, wherein an auxiliary bucket having a bottom surface is detachably attached to the opening of the bucket. 2. The bucket conveyor according to claim 1, wherein the flat bottom surface of the auxiliary bucket is provided with a mesh portion.