JPH07285644A - Belt conveyor - Google Patents

Abstract

PURPOSE:To expand a removal area of an article to transport by furnishing a circumferential direction projection part and a removal part free to move in the breadth direction of a belt on the belt for transport and devising it possible to scrape a transport part from the belt by the removal part. CONSTITUTION:A pair of removal parts 20a, 20b moves in the breadth direction of a belt 2 by way of following meandering of the transport belt 2 through a pair of circumferential direction projection parts 15a, 15b. Consequently, relative displacement of the circumferential direction projection parts 15a, 15b and the removal parts 20a, 20b of the belt 20 concerning the breadth direction of the belt 2 is prevented. In this case, interference of the circumferential direction projection parts 15a, 15b and the removal parts 20a, 20b can be certainly prevented by providing each of the removal parts 15a, 15b with an interval concerning the breadth direction and moving both of the removal parts 20a, 20b independently from each other in the breadth direction so as to change an interval of both of the removal parts 20a, 20b in accordance with change of the interval of both of the circumferential direction projection parts 15a, 15b Consequently, it is possible to expand a removal range of an article to transport.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor which is suitable for conveying adherent solid or soft materials in a bare state without packaging, and for example, for producing solid toilet soap or soft food. It can be used in the process.

[0002]

2. Description of the Related Art A conveyor belt 102 of a conventional belt conveyor 101 shown in FIGS. 10 and 11 is wound around a roller 104 attached to a frame 103, and the roller 104 is rotationally driven to be orbitally driven. .
The belt 102 is provided with a pair of circumferential protrusions 105a and 105b along the circumferential direction, so that the belt 1
It is possible to prevent the conveyed article from jumping out from 02. Each of the circumferential projections 105a and 105b has a large number of synthetic resin plate-like small pieces 105 'arranged in parallel along the circumferential direction at intervals.
Each plate-shaped small piece 105 'has one end
The belt 102 can be curved by being welded to No. 02 and by widening the interval between the other ends of the adjacent plate-like small pieces 105 ′. A scraper 106 for scraping the conveyed material from the belt 102 is fixed to the frame 103 via a mounting plate 107.

[0003]

In the belt 102, the conveying surface 102a is located between the protruding portions 105a and 105b in the circumferential direction.
However, the scraper 106 has a transfer surface 102
a does not extend over the entire lateral width of a, but each circumferential projection 105
The a and 105b and the scraper 106 are arranged at an interval δ in the lateral width direction of the belt 102. this is,
Due to the meandering of the belt 102, each circumferential protruding portion 105
Since a and 105b are displaced in the lateral width direction of the belt 102, if there is no such interval δ, each circumferential protrusion 105
This is because the a and 105b interfere with the scraper 106. Therefore, the conveyed product attached to the belt 102 in the vicinity of the circumferential protrusions 105a and 105b, and the plate-like small pieces 105 'constituting the circumferential protrusions 105a and 105b.
There is a problem that the transported object sandwiched between the two cannot be removed by the scraper 106. This problem becomes remarkable when the belt 102 becomes long and the meandering becomes large.

Further, in order to improve the carrying capacity when carrying a conveyed product not only in the horizontal direction but also in the inclined direction and the vertical direction, FIG.
As shown in FIG. 2, the lateral protrusion 108 along the width direction of the belt 102 may be provided over the entire width of the transport surface 102a. When such a lateral protruding portion 108 is provided, the scraper 106 as described above cannot be provided, and therefore, a conveyed product attached to the belt 102 in the vicinity of the circumferential protruding portions 105a and 105b, or the plate-like small piece 105. Not only the transported object sandwiched between the two ', but also the pair of circumferential projections 105
It is also impossible to remove the conveyed product M sandwiched between a and 105b as shown by the phantom line in the figure.

An object of the present invention is to provide a belt conveyor which can solve the above problems.

[0006]

SUMMARY OF THE INVENTION A belt conveyor according to the present invention comprises a conveyor belt which is driven to rotate, a circumferential projection provided on the belt in the circumferential direction, and a lateral width of the belt depending on the meandering of the belt. A removing unit that is movable in the direction, and the removing unit can scrape the conveyed object from the belt.

It is preferable that the removing portion is engaged with the circumferential protruding portion so as to be movable along the lateral direction of the belt.

Alternatively, the belt is provided with a circumferential guide portion along the circumferential direction, and the circumferential guide portion is provided with an engaging portion that is engaged with the belt so as to be movable along the lateral width direction of the belt. The part is preferably connected to the removing part so as to be movable along the lateral width direction of the belt. In this case, it is preferable that the engaging portion is rotatably connected to the removing portion about an axis along the lateral width direction of the belt.

The circumferential protruding portion and the removing portion are provided in pairs at intervals with respect to the lateral width direction of the belt, and both the removing portions are changed so that the distance between the removing portions changes according to the change in the distance between the circumferential protruding portions. The parts are preferably movable independently of each other in the lateral direction of the belt.

A lateral projecting portion along the lateral width direction of the belt is provided on the conveying surface of the belt, and the circumferential projecting portion and the lateral projecting portion are arranged at intervals in the lateral width direction of the belt, and the circumference thereof is provided. Preferably, the removal portion is arranged between the directional protrusion and the lateral protrusion.

A lateral projecting portion is provided on the conveying surface of the belt along the lateral width direction of the belt, and the lateral projecting portion is composed of a plurality of portions spaced apart from each other in the lateral width direction of the belt. It is preferable that the removing unit is disposed between them.

[0012]

According to the structure of the present invention, the removing portion moves in the lateral width direction of the belt in accordance with the meandering of the conveyor belt, so that the circumferential protruding portion of the belt and the removing portion are relatively displaced in the lateral width direction of the belt. It is possible to prevent the interference between the circumferential protruding portion and the removing portion. As a result, it becomes possible to scrape the conveyed product by the removing unit in the vicinity of the circumferential protrusion.

By engaging the removing portion with the circumferential protrusion so as to be movable along the lateral width of the belt, the removing portion can be moved in the lateral width direction of the belt in accordance with the meandering of the belt. In this case, since the removing portion follows the meandering of the belt via the circumferential protruding portion, a structure dedicated to the following is not required and the structure can be simplified.

Since the circumferential projecting portion needs to have a shape, size, material and the like corresponding to the kind and the amount of conveyed material, it may be easily bent in the lateral width direction of the belt. When the removing portion is engaged with the circumferentially protruding portion in which such bending occurs, the removing portion cannot follow the meandering of the belt. On the other hand, the circumferential guide portion provided on the belt is engaged with the engaging portion so as to be movable in the lateral direction of the belt,
By connecting the engaging part to the removing part so as to be movable along the lateral direction of the belt, the removing part can be made to follow the meandering of the belt through the circumferential direction guiding part and the engaging part. There is no problem even if the protrusion is easily bent.

If the frictional resistance between the circumferential guide portion and the engaging portion is increased, the belt is twisted or bent, which causes interference between the removing portion and the circumferential protruding portion. On the other hand, by connecting the engaging portion to the removing portion so as to be rotatable about the axis along the lateral width direction of the belt, the frictional resistance between the circumferential guide portion and the engaging portion is reduced to reduce the friction between the removing portion and the removing portion. It is possible to more reliably prevent interference with the circumferential protrusion.

When a pair of circumferential projections are provided at intervals in the lateral width direction of the belt, the spacing between the circumferential projections changes when the belt is twisted or bent. When such a change in the spacing occurs, even if the single removing section moves in the lateral width direction of the belt in accordance with the meandering of the conveyor belt, there is a risk of interfering with the circumferential protrusion. In contrast,
A pair of removing portions are provided at intervals in the lateral width direction of the belt, and both removing portions are moved independently of each other in the lateral width direction of the belt so as to change the distance between the removing portions in accordance with the change in the distance between the protruding portions in both circumferential directions By doing so, it is possible to more reliably prevent the interference between the circumferential protruding portion and the removing portion.

In the case where the laterally protruding portion is provided on the conveying surface of the belt, the circumferentially protruding portion and the laterally protruding portion are arranged at an interval in the lateral width direction of the belt, and the removing portion is arranged between them. Thus, it becomes possible to scrape the conveyed product in the vicinity of the circumferential protrusion without interfering the removing portion with the circumferential protrusion and the lateral protrusion.

The lateral projecting portion is composed of a plurality of portions spaced apart from each other in the lateral width direction of the belt, and the removing portion is arranged between the respective portions so that the removing portion interferes with the lateral projecting portion. Instead, it is possible to scrape the transported object on the transportation surface away from the circumferential protrusion.

[0019]

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

The conveyor belt 2 of the belt conveyor 1 shown in FIG. 1 is covered with a frame 3, and is wound around a driving roller 4 and a driven roller 5 mounted on the frame 3 along the inclination direction to form a plurality of tensions. Roller 6
Is applied with tension. Belt 2 on the frame 3
An inlet 3a is formed on the lower end side of the belt 2, an outlet 3b is formed on the upper end side of the belt 2, and a regeneration tank 7 is arranged below the outlet 3b. From the charging port 3a, a soap bar that has not been commercialized due to flaky soap slag or dimensional defects generated in the manufacturing process of solid soap is charged. The soap dregs and the like are conveyed upward by the belt 2 along the inclination direction, fall from the discharge port 3b and are stored in the regeneration tank 7, and are mixed with other soap raw materials and reused. Further, a recovery port 3c is formed in the frame 3 near the lower end of the belt 2, and a recovery container 9 with a trolley is arranged below the recovery port 3c, and the soap dropped into the frame 3 without falling into the regeneration tank 7. Slag, etc. are being collected.

As shown in FIGS. 2 and 3, the frame 3
The rotation of the drive motor 10 attached to the drive roller 4 is transmitted to the drive roller 4 via the sprockets 11 and 12 and the chain 13 to drive the belt 2 to rotate. Its belt 2
A pair of circumferential projections 15a, 15b along the circumferential direction
Are provided at intervals in the width direction of the belt 2. The circumferential protrusions 15a and 15b are indicated by (1) in FIG.
As shown in (2), it is composed of a large number of synthetic resin plate-like small pieces 15 'arranged in parallel at intervals along the circumferential direction. One end of each plate-shaped piece 15 'is welded to the outer peripheral surface of the belt 2 and the other end is a free end. Each small plate 1
The width direction of 5'is directed toward the front in the circumferential direction (the direction of arrow A in FIG. 4) from the center side of the belt 2 toward the outside, and the adjacent plate-like small pieces 15 'overlap in the width direction of the belt 2. It is supposed to be. Further, the width of each plate-shaped small piece 15 'is made larger on the other end side than on one end side, and even when the other ends of the plate-shaped small pieces 15' adjacent to each other when the belt 2 is bent are widened. The plate-shaped small pieces 15 ′ that overlap each other in the width direction of the belt 2.

A space between the pair of circumferential projections 15a and 15b is a transport surface 2a of the belt 2, and a plurality of lateral projections 16 along the lateral width direction of the belt 2 are arranged on the transport surface 2a in the circumferential direction. It is provided in advance. Each lateral protrusion 16 is a plate material made of synthetic resin, is welded to the belt 2, and is arranged at a distance S in the lateral width direction of the belt 2 with respect to each circumferential protrusion 15a, 15b.

A pair of plate-shaped scrapers 20a and 20b are provided above the regeneration tank 7 as removing portions at intervals in the widthwise direction of the belt 2. The peripheral edge of the recess 20a 'formed on one scraper 20a surrounds one circumferential projection 15a, and the peripheral edge of the recess 20b' formed on the other scraper 20b surrounds the other circumferential projection 15b. A part of each scraper 20a, 20b is arranged between each circumferential projection 15a, 15b and the lateral projection 16.

Each scraper 20a, 20b has a cylindrical housing 22a, 22b separated by a bolt 21.
Is attached to. Linear motion ball bearings 23 are fitted inside the respective housings 22a and 22b, and each linear motion ball bearing 23 is engaged with the axial groove of one spline shaft 24 via balls. The spline shaft 24 is attached to the frame 3 via an attachment plate 25 so as to extend in the lateral width direction of the belt 2. As a result, both scrapers 20a and 20b are attached to the support side of the belt 2 so as to be movable in the lateral width direction of the belt 2 independently of each other and not to rotate about the axis along the lateral width direction of the belt 2.

The belt 2 is provided with a pair of circumferential guide portions 30a, 30b along the circumferential direction outside the circumferential protrusions 15a, 15b at intervals in the width direction of the belt 2. The circumferential guide portions 30a and 30b project from the outer peripheral surface of the belt 2, and are formed by welding continuous elastic synthetic resin string members to the outer peripheral surface of the belt 2. Compared to 15a and 15b, the belt 2 is not easily bent in the lateral width direction. Pulleys 31a and 31b are engaged with the respective circumferential guide portions 30a and 30b as engaging portions so as to be movable along the lateral width direction of the belt 2 through the outer peripheral grooves. One pulley 31a is rotatably attached to one housing 22a via a ball bearing 32a about the spline shaft 24, and the other pulley 31b is rotatably attached to the other housing 22b about a spline shaft 24 via a ball bearing 32b. Has been.

According to the above belt conveyor 1, the belt 2
The circumferential guide portions 30a, 30b move in the lateral width direction of the belt 2 in response to the meandering of the scraper 20, and the circumferential guide portions 30a, 30b move by the pulleys 31a, 31b.
a, 20b, so scrapers 20a, 20
b moves in the lateral width direction of the belt 22 according to the meandering of the belt 2. This prevents the circumferential protrusions 15a, 15b and the scrapers 20a, 20b from being displaced relative to each other in the lateral width direction of the belt 2, and the circumferential protrusions 15a, 1b.
5b and the scrapers 20a, 20b can be prevented from interfering with each other.
a, 15b as close as possible to each circumferential projection 15
The soap dregs attached to the belt 2 in the vicinity of a and 15b, the soap dregs sandwiched between the plate-shaped small pieces 15 'constituting the circumferential projections 15a and 15b, and the pair of circumferential projections 15
The soap bar sandwiched between a and 15b can be scraped off. As a result, it is possible to prevent a decrease in the amount of soap slag or soap bar input to the regenerating tank 7, to optimize the mixing ratio with other soap raw materials, improve product quality and yield, and to collect the recovery container. The cleaning time of 9 can be shortened.

Further, by making the scrapers 20a and 20b follow the meandering of the belt 2 via the circumferential direction guiding portions 30a and 30b and the pulleys 31a and 31b, the circumferential projecting portions 15a and 15b are easily bent. But, belt 2
The scrapers 20a, 20b can be moved in the lateral width direction of the belt 2 in accordance with the meandering of.

Further, since the pulleys 31a and 31b are rotatable about the shafts along the lateral width direction of the belt 2, the frictional resistance between the circumferential guide portions 30a and 30b and the pulleys 31a and 31b is reduced, and the belt 2 Of the scrapers 20a and 20b and the circumferential projection 15a,
Interference with 15b can be prevented more reliably.

Further, the pair of circumferential guide portions 30a, 30b provided at intervals in the width direction of the belt 2 make the pair of scrapers 20a, 20b provided at intervals in the width direction of the belt 2 mutually. By independently moving in the width direction of the belt 2, the bi-directional protrusion 15
Both scrapers 20a, 2a according to the change of the distance of a, 15b
The interval of 0b can be changed. As a result, the belt 2 is twisted or bent, and the bi-directional protruding portions 15a, 1
Even when the distance of 5b changes, the circumferential protrusion 1
The interference between the scrapers 5a and 15b and the scrapers 20a and 20b can be prevented more reliably.

Further, by disposing the scrapers 20a and 20b between the circumferential projections 15a and 15b and the lateral projection 16 which are arranged at intervals S in the lateral width direction of the belt 2, the scrapers 20a and 20b are separated from each other. The conveyed object can be scraped off in the vicinity of the circumferential protrusions 15a and 15b without interfering with the circumferential protrusions 15a and 15b and the lateral protrusions 16b.

5, 6, and 7 show a first modification of the present invention. The difference from the above embodiment is that the circumferential guide portions 30a, 3
0b and pulleys 31a, 31b are not provided, each scraper 20a, 20b has a circumferential protrusion 15a, 15b.
The belt 2 is engaged with the belt 2 so that the belt 2 can be moved in the lateral width direction. That is, when the belt 2 meanders, each scraper 20
When the peripheral edges of the recesses 20a 'and 20b' of the a and 20b are in contact with the circumferential protrusions 15a and 15b, the scrapers 2
0a and 20b move in the lateral width direction of the belt 2 in accordance with the meandering of the belt 2. Further, each scraper 20 is attached to a common cylindrical housing 22 'by a bolt 21, and the housing 22' is engaged with an axial groove of a spline shaft 24 via a direct acting ball bearing 23. As a result, both scrapers 20a and 20b can move together along the lateral width direction of the belt 2. In addition, the plate-like small pieces 15 ″ forming the respective circumferential projecting portions 15a and 15b have a mountain-shaped cross section, and the width direction thereof goes toward the front in the circumferential direction from the center side of the belt 2 toward the outside, and then to the rear in the circumferential direction. As a result, both ends in the width direction of each plate-shaped small piece 15 ″ face rearward in the circumferential direction, so that the plate-shaped small piece 15 ″ of the circumferential protrusions 15a and 15b in the above-described embodiment is formed.
As compared to the case where one end in the width direction faces forward in the circumferential direction as shown in FIG. 1, the force received at the time of contact with the scrapers 20a and 20b is reduced to prevent damage, and the bending strength is increased to extend in the width direction of the belt 2. It becomes difficult to bend. Others have the same configuration as that of the above-described embodiment, and the same portions are denoted by the same reference numerals. This first
According to the modified example, the conveyed objects can be scraped off as in the above-described embodiment, and the scrapers 20a and 20b can be scraped.
Guide portion 30 for making the belt follow the meandering of the belt 2.
Since a dedicated configuration such as a, 30b and pulleys 31a, 31b is not required, the structure can be simplified.

FIG. 8 shows a second modification of the present invention. The difference from the first modified example is that it is not provided with the lateral protrusion 16 and is suitable for horizontally conveying an object to be conveyed, and a single scraper 20 is used instead of the pair of scrapers 20a and 20b. Is attached to the housing 22 '. The scraper 20 is plate-shaped and has a pair of recesses 20.
a 'and 20b', one circumferential projection 15a is surrounded by the peripheral edge of one concave portion 20a ', and the other concave portion 20a' is surrounded.
The other circumferential protrusion 15b is surrounded by the peripheral edge of b ',
The portion between the two recesses 20a 'and 20b' extends over almost the entire width of the transport surface 2a. Others have the same configuration as that of the first modified example, and the same portions are denoted by the same reference numerals. According to the second modified example, not only scraping of the carried object in the region of the above-described embodiment and the first modified example but also scraping of the carried object can be performed over substantially the entire width of the carrying surface 2a of the belt 2. it can.

FIG. 9 shows a third modification of the present invention. The difference from the first modification is that the lateral protrusion 16 has two portions 16a and 16b spaced from each other in the lateral width direction of the belt 2.
And a third scraper 20c, which is arranged between the parts 16a and 16b, is attached to the housing 22 '. Others have the same configuration as that of the first modified example, and the same portions are denoted by the same reference numerals. According to the third modified example, in the case of improving the carrying capacity when carrying in the inclined direction or the vertical direction, not only the scraping of the carried object in the region in the above-described embodiment and the first modified example but also the circumferential direction is performed. Protruding part 15
It is possible to scrape the transported material attached on the transportation surface 2a away from the a and 15b, and it is possible to prevent the third scraper 20c from interfering with the lateral protruding portion 16.

The present invention is not limited to the above-mentioned embodiments and modifications. For example, the transported material is not particularly limited to soap dregs and soap bars. Further, the removing unit is not limited to the scraper shape as described above, and may be any unit as long as it can scrape the conveyed product from the belt. Further, the circumferential protruding portion is not limited to one configured by a large number of small pieces, and may be configured by a continuous member. Further, the circumferential guide portion is not limited to the one projecting from the belt, and for example, a concave portion is formed along the circumferential direction of the belt, and a sprocket meshing with the concave portion can be used as an engaging portion to accompany the removing portion along the lateral width direction of the belt. Further, the belt may be rotatably connected about an axis along the lateral width direction of the belt. Further, the lateral protrusion may be composed of three or more parts, and the removing part may be arranged between the parts.

[0035]

According to the belt conveyor of the present invention, by causing the removing portion for scraping the conveyed object to follow the meandering of the belt, it is possible to prevent interference between the removed portion and the circumferential projecting portion and to convey the conveyed object. The removal area can be expanded. The structure can be simplified by engaging the removal portion with the circumferential protrusion to follow the meandering of the belt. Even if the circumferential projecting portion is easily bent, it is possible to follow the meandering of the belt through the circumferential guiding portion and the engaging portion. By interlocking the engaging portion with the removing portion so as to be rotatable about an axis along the lateral width direction of the belt, it is possible to more reliably prevent interference between the removing portion and the circumferential protruding portion.
When a pair of the circumferential protrusions are provided at intervals in the lateral width direction of the belt, by moving the pair of removing portions independently of each other in the lateral width direction of the belt according to the change in the spacing between the circumferential protrusions, It is possible to more reliably prevent the interference between the circumferential protruding portion and the removing portion. Further, when the lateral projecting portion is provided, it becomes possible to remove the conveyed product by the removing portion.

[Brief description of drawings]

FIG. 1 is a side view configuration explanatory diagram of a belt conveyor according to an embodiment of the present invention.

FIG. 2 is a front sectional view of a main part of a belt conveyor according to an embodiment of the present invention.

FIG. 3 is a side sectional view of a main part of a belt conveyor according to an embodiment of the present invention.

FIG. 4 is a partial side sectional view of a conveyor belt according to an embodiment of the present invention, and FIG.

FIG. 5 is a front sectional view of a main part of a belt conveyor according to a first modified example of the present invention.

FIG. 6 is a side sectional view of a main part of a belt conveyor according to a first modified example of the present invention.

FIG. 7 is a partial plan view of a conveyor belt according to a first modified example of the present invention.

FIG. 8 is a front sectional view of a main part of a belt conveyor according to a second modified example of the present invention.

FIG. 9 is a front sectional view of a main part of a belt conveyor according to a third modified example of the present invention.

FIG. 10 is a partial front sectional view of a conventional belt conveyor.

FIG. 11 is a partial side sectional view of a conventional belt conveyor.

FIG. 12 is a partial front sectional view of a conventional belt conveyor.

[Explanation of symbols]

 2 Conveyor belts 15a, 15b Circumferential projections 16a, 16b Lateral projections 20, 20a, 20b, 20c Removal parts 30a, 30b Circumferential guide parts 31a, 31b Engagement parts

Claims (7)

[Claims] 1. A conveyor belt that is revolvingly driven, a circumferential projecting portion that is provided on the belt in the revolving direction, and a removing portion that is movable in the lateral width direction of the belt in accordance with the meandering of the belt. A belt conveyor that can scrape conveyed items from the belt by its removal unit. 2. The belt conveyor according to claim 1, wherein the removing portion engages with the circumferential protrusion so as to be movable along the lateral direction of the belt. 3. The belt is provided with a circumferential guide portion along the circumferential direction, and the circumferential guide portion is provided with an engaging portion that engages so as to be movable along the lateral width direction of the belt. The belt conveyor according to claim 1, wherein the portion is connected to the removing portion so as to be movable along the lateral direction of the belt. 4. The belt conveyor according to claim 3, wherein the engaging portion is rotatably connected to the removing portion about an axis extending in the lateral width direction of the belt. 5. A pair of the circumferential protruding portion and the removing portion are provided at intervals in the lateral width direction of the belt,
The belt conveyor according to any one of claims 1 to 4, wherein both removing portions are movable independently of each other in the lateral direction of the belt so that the spacing between the removing portions changes in accordance with the change in the spacing between the circumferential projecting portions. . 6. A belt-side conveyance surface is provided with a lateral projection along the lateral width direction of the belt, and the circumferential projection and the lateral projection are spaced from each other in the lateral width direction of the belt. The belt conveyor according to any one of claims 1 to 5, wherein the removing portion is arranged between the circumferential protruding portion and the lateral protruding portion. 7. A belt-side conveyance surface is provided with a lateral protrusion along the lateral width direction of the belt, and the lateral protrusion is composed of a plurality of portions spaced from each other in the lateral width direction of the belt. The removing unit is arranged between the members.
The belt conveyor according to any one of 1 to 6.