JPH1159853A - Foldable conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foldable conveyer wherein retaining a conveying belt in a flexing part is made possible by a simple structure, the conveying belt can be easily mounted/demounted, workability is excellent in cleaning work, replacing work, etc., of the conveying belt, and a cost is reduced with mass productivity excellent. SOLUTION: This foldable conveyer comprises a frame 2 having a flexing part 2b in a lengthwise direction, leg part 3 fixed to one side surface of the frame 2, opening part 4 formed in the downward of the frame 2 without the leg part 3 fixed, bearing frame bracket 5 fixed able to be mounted/demounted to one end part of the frame 2, drive roller bearing 7 fixed to the other end part of the frame 2, conveying belt 9 mounted between a roller 6 and a drive roller 8, drive part 10 driving the conveying belt 9, retaining bearing 12 pressing an edge part of the conveying belt 9, and a bearing bracket 11 fixed able to be mounted/demounted to a side surface of the frame 2 to be journalled with the retaining bearing 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding type conveyor which has a bent portion in a longitudinal direction and conveys articles to a predetermined position by a conveying belt comprising an endless belt.

[0002]

2. Description of the Related Art Conventionally, in various industries, conveyors comprising endless belts have been used for conveying articles such as raw materials and products. In particular, when conveying articles to a position at a height different from that at the time of carry-in and carrying them out, an inclined conveyor or the like having different heights on the entrance side and the exit side of the conveyor with the inclined conveyor belt is used. Also, in factories and the like of various industries, the transport belt is a transport line for transporting articles by transferring articles from a horizontal conveyor to an inclined conveyor, and has a bent portion in the longitudinal direction and a horizontal portion and an inclined portion. A transport line or the like for transporting articles by a folding center type conveyor is used. Less than,
A conventional folding type conveyor will be described with reference to the drawings. FIG. 13 is an overall perspective view of a conventional folding-type conveyor. In the figure, reference numeral 50 denotes a conventional folding type conveyor, 51 denotes a frame of the folding type conveyor 50 having a bent portion in the longitudinal direction, and 52 denotes legs fixed to both side surfaces of the frame 51.
Reference numeral 3 denotes an input roller rotatably supported at the lower end of the frame 51, reference numeral 54 denotes an output roller rotatably supported at the upper end of the frame 51, and reference numeral 55 denotes an input roller 53.
And a conveying belt 55, which is an endless belt mounted between the conveying roller 55 and a conveying roller 55, a crossbar 55a standing at a predetermined interval on a conveying surface of the conveying belt 55, and a connecting member 56 connected to the discharging roller 54 to control the conveying belt 55. The drive unit to be driven, 57 is the frame 5
A roller holding portion fixed to the bent portion 1 with a screw 57a or the like;
Reference numeral 58 denotes a plurality of pressing rollers which are rotatably supported at the upper end side of the roller holding portion 57 by a shaft portion 58 a and press the edge of the conveying belt 55 on the conveying side, and 59 denotes a shaft portion 59 a at the lower end side of the roller holding portion 57. A plurality of support rollers that are rotatably supported by and support the edge of the return-side transport belt 55; 60, an adjustment unit that moves the roller shaft 53a of the entry-side roller 53 to adjust the tension of the transport belt 55; A fitting hole portion in which the roller shaft 53a is movably fitted is an adjusting bolt 62 for adjusting the tension by moving the roller shaft 53a back and forth. The transport belt 55 mounted between the entrance roller 53 and the exit roller 54 is transported on the transport side by a plurality of pressing rollers 58 supported by a roller holding portion 57 fixed to a bent portion of the frame 51. By pressing the edge of the conveying surface of the belt 55, it is adjusted to the bending of the frame 51. Further, the edge of the transport surface of the transport belt 55 on the return side of the center folding type conveyor 50 is supported by a plurality of support rollers 59.

The operation of the conventional folding type conveyor constructed as described above will be described below. When removing the transport belt 55 from the frame 51, the roller holding portion 57 fixed to the frame 51 is removed from the frame 51. By removing the roller holding portion 57, the transport belt 5
The tension of 5 also relaxes. Next, after removing one of the frames 51 from the leg portion 52 and removing the entrance roller 53 and the exit roller 54 from the frame 51, the transport belt 55 is removed from the frame 51. Further, the transport belt 55
When the transport belt 55 is attached between the entrance roller 53 and the exit roller 54 with one frame 51 being detached from the leg 52, the removed frame 51
And the entrance roller 53 and the exit roller 54 are attached, and the frame 51 is fixed to the leg 52. Next, the edge of the transport surface of the transport belt 55 on the transport side is pressed by the pressing roller 58, and the edge of the transport surface of the transport belt 55 on the return side is supported by the support roller 59. After fixing the roller holding portion 57 and adjusting the transport belt 55 to the bending of the frame 51, the tension of the transport belt 55 is adjusted. When cleaning the transport belt 55, the transport surface of the transport belt 55 is wiped while the transport belt 55 is mounted on the frame 51, and the transport surface of the transport belt is cleaned.

[0004]

However, the above-mentioned conventional folding-type conveyor has the following problems.
In order to align the transport belt with the bent portion of the frame, the roller holding portion is fixed to the bent portion of the frame, and the edge of the transport surface of the transport belt on the transport side is pressed by a plurality of pressing rollers, and the transport belt on the return side is pressed. Since the edge of the transfer surface is supported by a plurality of support rollers, the number of parts in the roller holding unit is large, the structure is complicated, the work at the time of assembly is complicated, the workability is poor, and the productivity is lacking. When the transport belt is removed, all of the rollers that hold the transport belt, the exit roller, the holding roller, and the roller holding part and the legs that support the support roller are fixed to both sides of the frame. It requires work to remove the frame and legs, remove almost all parts from the frame, and substantially disassemble the center-fold type conveyor, requiring a great deal of man-hours and time for replacing the conveyor belt, and improving maintainability. Notably lacking. Also,
Cleaning the conveyor belt requires only wiping of the conveyor surface while the conveyor belt is mounted on the frame because it takes a lot of time to attach and detach the conveyor belt. And the complicated structure of the roller holder makes it easy for food debris to accumulate between multiple holding rollers and supporting rollers that are supported by the roller holder, and for bacteria to easily propagate, especially for transporting food. There was a problem that it was difficult to use due to lack of hygiene at the time of use. Further, in order to prevent the articles from rolling down when the articles are transported on the inclined portion, a belt with a crosspiece is often used as the transport belt. Since only the wiping operation does not remove dirt from the details and lacks hygiene, it has been strongly desired that the transport belt can be detached from the frame and the transport belt can be washed, particularly in the food industry having hygiene.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and has a simple structure that can hold down a transport belt at a bent portion, and that can easily attach and detach the transport belt and perform cleaning and replacement operations of the transport belt. It is an object of the present invention to provide a folding center conveyor that is excellent in workability, low in cost, and excellent in mass productivity.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, a center folding type conveyor according to the present invention comprises a frame having one or more bent portions in a longitudinal direction, and a frame fixed to one side of the frame. Legs, open portions formed below the frame to which the legs are not fixed, and at least one end side is disposed at both ends in the longitudinal direction of the frame and at least one end is detachably or rotatably fixed. A roller bearing portion, a transport belt composed of an endless belt mounted between rollers supported by the roller bearing portion, a drive unit for driving the transport belt, and a transport side disposed on the bent portion and disposed on the transport side. A structure comprising: a pressing bearing that presses an edge of a conveyor belt; and a bearing bracket that is detachably fixed to a side surface of the frame and that rotatably supports the pressing bearing. The it has. With this configuration,
By simply attaching the bearing bracket on which the holding bearing is pivotally supported to the frame, the edge of the transport belt on the transport side can be pressed, and the transport belt can be adjusted to the bent portion of the frame with a simple structure. Also,
Since the roller bearing at one end supporting the roller on which the conveyor belt is mounted is detachably or rotatably fixed to the frame, the tension of the conveyor belt can be adjusted simply by loosening the fixing between the roller bearing and the frame. Can be relaxed. In addition, the legs are fixed to only one side of the frame, and there are open parts below the frame on the other side, and the bearing bracket is detachably fixed to the frame, so the tension on the conveyor belt is relaxed. Then, the conveyor belt can be detached from the frame by simply removing the bearing bracket from the frame, and the conveyor belt can be removed from the opening.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a folding type conveyor according to a first embodiment of the present invention; An opening formed below the frame to which the leg is not fixed, and a roller bearing disposed at both ends in the longitudinal direction of the frame and at least one end of which is detachably or rotatably fixed. A conveying belt including an endless belt mounted between rollers supported by the roller bearing unit, a driving unit for driving the conveying belt, and an edge of the conveying belt disposed on the bent portion and on the conveying side. And a bearing bracket fixed to the side surface of the frame so as to be detachable and rotatably supported by the press bearing. This has the effect that the conveyance belt can be pressed by the press bearing in accordance with the bent portion of the frame only by attaching the bearing bracket to the frame. In addition, since the roller bearing at one end is detachably or rotatably fixed to the frame, the tension of the transport belt can be reduced only by loosening the fixing between the roller bearing and the frame. . The leg is fixed to only one side of the frame and the other side has an open part, and the bearing bracket is detachably fixed to the frame. It has the effect of being able to. Here, the legs are substantially L having an upright wall portion whose upper end portion is fixed to one side surface of the frame and a bottom portion connected to the lower end portion of the upright wall portion at right angles.
And a substantially Z-shape having an inclined standing wall portion whose upper end is fixed to one side surface of the frame and whose lower end is inclined to the other side surface of the frame and a bottom portion connected to the lower end portion of the inclined standing wall portion. Used. Also, the middle folding type conveyor becomes large,
When it is necessary to dispose the legs on both sides of the frame from the viewpoint of strength and the like, it is preferable that the upper ends of the legs on at least one side are connected to the sides of the frame by latches or the like so that they can be detached from the frame. . An opening can be formed between the leg and the frame simply by releasing the latch, and the conveyor belt can be removed from the frame and pulled out. The frame may be formed by bending a flat plate into a U-shape to form both sides and a flat plate. Alternatively, a plurality of support members and rollers may be provided between both sides to omit the flat plate. The transport belt is appropriately determined depending on the article to be transported, such as a flat belt or a net belt. A belt having a crosspiece standing at a predetermined position on the transport surface is preferably used. This is because it is possible to prevent the article from falling off on the inclined surface.

According to a second aspect of the present invention, in the folding type conveyor according to the first aspect of the present invention, a support roller for supporting a return-side edge of the conveyor belt is detachably attached to each side surface of the frame. And a support roller bracket that is fixed and rotatably supported by the support roller. Accordingly, the transport belt on the return side can be supported simply by attaching the support roller bracket on which the support roller is pivotally supported to the frame, and the operation of the transport belt can be prevented from being loosened. In addition, since the support roller brackets are each detachably fixed to the frame, the transfer belt can be removed by simply removing at least the support roller bracket on the open side from the frame when the transfer belt is detached. Further, since the support roller bracket is detachably attached to the drive roller side and is attached to the fixed portion so as to be adjustable in position, there is an effect that the transport belt can be easily and reliably wound around the drive roller. A small support roller consisting of a bearing or the like is attached to each support roller bracket, so that a large and heavy support roller with a length that extends between the frames as in the past can be damaged due to falling off when handling, It has the effect of preventing accidents such as dropping and injuries, and significantly improving workability and safety during handling. Here, as the support roller bracket, it is sufficient that the edge of the transport belt can be easily removed when the transport belt is attached or detached, and the support roller bracket may be fixed to the frame with a shaft and rotatably fixed.

According to a third aspect of the present invention, in the invention of the first or second aspect, the frame comprises:
a. A guide portion and / or b having a guide fixing portion detachably fixed to each side surface, and a guide plate connected to the guide fixing portion and erected on an edge side of the transport belt on the transport side. . A roller frame in which the roller bearing portion is symmetrically mounted, and a groove-shaped roller shaft having an open end formed in parallel with one end in the longitudinal direction of the bearing frame or an elongated roller shaft having no open end. A support portion, a bearing frame fitting portion formed by cutting out at the other end portion, a bearing frame fixing portion formed in a concave shape on the lower side, and a reinforcing stay fixed to each inside of the bearing frame are provided. And a bearing frame bracket. Accordingly, the guide plate can guide the edge side of the transport belt, and has an effect of preventing an article being transported on the transport belt from falling from the edge side of the transport belt. Further, since the guide fixing portion is detachably fixed to the side surface of the frame, the guide portion can be easily removed from the frame when the transfer belt is detached or attached. Here, as the guide plate, a plate formed to an arbitrary height, shape, or the like according to the shape or the like of an article to be conveyed on the conveyance belt is appropriately used. Further, the guide fixing portion may fix the base portion rotatably to the guide plate. Thereby, the guide fixing part can be accommodated in the guide plate at the time of storage, and the transportability and the storage property can be improved. The bearing frame bracket is rotatable on the bearing frame locking part on the side of the frame and detachable from the fixed part, so it can be easily removed at the time of maintenance such as roller replacement or cleaning, so the number of repair and maintenance man-hours And work time can be significantly reduced.

According to a fourth aspect of the present invention, there is provided the intermediate folding type conveyor according to any one of the first to third aspects.
It has a structure provided with a tray detachably disposed below the return side of the conveyor belt. Thereby, on the return side of the conveyor belt, it is possible to receive the debris of the articles on the conveying surface of the conveyor belt with the tray, and to prevent the debris of the articles from dropping below the middle folding type conveyor. . In addition, since the tray is detachably provided, the tray can be removed for cleaning. Here, the tray has a tray fixing portion detachably fixed to the side surface of the frame or the leg portion and a receiving portion connected to the tray fixing portion, or is detachably mounted on the leg portion. A saucer or the like is used. In the case where the center-folding type conveyor is large, a plurality of conveyors divided in the longitudinal direction are used. The pan can be easily attached and detached.

According to a fifth aspect of the present invention, there is provided the intermediate folding type conveyor according to any one of the first to fourth aspects.
It has a configuration provided with a scraper disposed on the guide portion or the roller bearing portion at a longitudinal end. This has the effect of preventing articles placed on the transport surface of the transport belt from falling off the transport belt.
Further, when the lower end portion of the scraper is brought into contact with the transport surface of the transport belt, dust and the like attached to the transport surface of the transport belt can be removed by the scraper as the transport belt is driven. Here, it is preferable that the scraper is detachably fixed to the guide portion or the roller bearing portion. The scraper can be removed for cleaning, and the scraper can be removed simultaneously with the removal of the guide portion and the roller bearing portion when attaching and detaching the conveyor belt.

(Embodiment 1) A folding center type conveyor according to Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a main part of the center folding type conveyor according to the first embodiment, FIG. 2 is a cross-sectional end view of a main part of the center folding type conveyor, and FIG. 3 is a perspective view of the center folding type conveyor according to the first embodiment. It is a principal part rear surface perspective view. 1 and 2, reference numeral 1 denotes a center folding type conveyor according to the first embodiment,
Reference numeral 2 denotes a bent portion 2b and a bent portion 2 in which a tongue piece (not shown) is fixed to an inclined portion 2a and an end 2a 'of the inclined portion 2a in the longitudinal direction.
b, a frame consisting of a horizontal portion 2c whose end is fixed to a tongue piece (not shown) of a bent portion 2b, 3 is an L-shaped leg made of a metal square pipe, 3a is a leg Standing part of part 3,
Reference numeral 3b denotes a leg bottom portion which is provided so as to be orthogonal to the lower end of the column portion 3a of the leg portion 3; A frame holding portion (not shown) that penetrates the inner wall portion of the portion 3a and is fixed by welding or the like at the fixing portion 3e of the outer inner wall portion and includes a hole, a notch groove, and the like formed on the side wall of the frame 2. A frame support member for inserting or fitting the frame 2 and holding the frame 2 horizontally,
Reference numeral 3f denotes a frame fixing portion for detachably fixing the side wall of the frame 2 to an end portion of the frame supporting member 3d. Reference numeral 4 denotes a U-shaped belt between the L-shaped leg 3 and the frame 2. The freely openable portion 5 is a roller bearing portion on the entry side in the first embodiment, a bearing frame bracket detachably fixed to an end of the horizontal portion 2c on the entry side of the frame 2 and arranged on the entry side, and 6 is a bearing. An input roller 7 supported at the tip of the frame bracket 5, a driving roller bearing 7 disposed on the output side fixed to the end of the inclined portion 2 a on the output side of the frame 2,
Reference numeral 8 denotes an outgoing drive roller rotatably supported by a drive roller bearing 7, and 9 denotes an incoming roller 6 and an outgoing drive roller 8.
9a, a conveyor belt comprising an endless belt mounted between
The crossbar 10 is provided on a predetermined portion of the conveying surface of the conveying belt 9.
Is a drive unit connected to the drive roller 8 on the output side to drive the transport belt 9; 11 is a bearing bracket detachably fixed to the side surface of the horizontal portion of the frame 2 near the bent portion 2b;
Reference numeral 12 denotes a press bearing which is rotatably supported by the bearing bracket 11 and has an outer ring coated with a rubber material on the outer ring which presses the edge of the transfer belt 9 on the transfer side by the bent portion 2b, and 13 denotes a drive roller 8 on the inclined portion of the frame 2. And a support roller bracket which is detachably fixed to the side surface of the end portion on the side and supports a support bearing which supports the edge of the transport belt 9 on the return side.
When the transport belt 9 does not have the crosspiece 9a, the support bearing may be a support roller. 14 is the conveyor belt 9
A guide portion 14a formed above the both edges to guide the conveyed product, a guide fixing portion 14a formed in an L shape and having one end fixed to the guide 14 and the other end provided with a long locking hole; It is a fixed portion which is disposed at a predetermined position of the frame 2 and in which the bearing frame bracket 5, the bearing bracket 11, the support roller bracket 13, and the guide portion 14 are detachably screwed to the frame 2 respectively. In FIG. 3, reference numeral 16 denotes a support bearing rotatably supported by the support roller bracket 13 and supporting the edge of the transport belt 9 on the return side, and 17 denotes a support bearing rotatably supported by the bent portion 2 b of the frame 2. The intermediate roller is in contact with the rear surface of the conveyor belt 9. Here, the leg 3 and the drive unit 10 are disposed on the same side of the frame 2. The conveyor belt 9 can be removed from the opening 4 in the direction of arrow 4 '. Similarly, the frame 2 can be inserted and removed in the direction of the arrow 4 ′ at the opening 4. Further, as the fixing portion 15, a screw portion screwed to the frame 2 and a screw having a handle portion at one end of the screw portion are used.

Next, the main part of the folding type conveyor 1 in the first embodiment will be described with reference to the drawings. FIG. 4 is a perspective view of a main part of a roller bearing portion on the entry side of the center-fold type conveyor according to the first embodiment. FIG. 5 is a perspective view of a main part of a bearing frame bracket of the center-fold type conveyor according to the first embodiment. FIG. 6 is an exploded perspective view of a main part of a bent portion of the center-folded conveyor according to the first embodiment, and FIG. 7 is an exploded perspective view of a main part of an outgoing side of the center-folded conveyor in the first embodiment. FIG. 8 is an exploded perspective view of a main part of a guide portion of the center folding type conveyor according to the first embodiment. 4 and 5, reference numeral 18 denotes a bearing frame engaging portion of the bearing frame bracket 5 disposed on the entrance side protruding from both side surfaces of the horizontal portion 2c of the frame 2; The bearing frame 19a is mounted on the bearing frame 19, and the reinforcing stay 19 is detachably fixed between the bearing frames 19 and 19 by a stay fixing portion 19a 'such as a bolt.
A roller shaft supporting portion formed in a long hole shape at the tip of 9, 21 is an adjusting portion formed on the bearing frame 19 to adjust the tension of the conveyor belt 9, 21 a is screwed into the adjusting portion 21, and An adjusting bolt 22 for adjusting the position is formed in the rear end of the bearing frame 19 by a concave cutout, and is a locking portion that is detachably locked to the bearing frame locking portion 18. A concave portion 23 is formed in a lower portion of the bearing frame 19. Fixed part 1 formed by notching
5 is a bearing frame fixing portion that is fitted to and fixed to the horizontal portion 2c. In FIG. 6, reference numeral 11a denotes a bearing bracket engaging portion which is formed by cutting off the edge of the bearing bracket 11 and is engaged with the fixing portion 15. Reference numeral 12 denotes a rubber member provided on the outer race and rotatably fixed to the bearing bracket 11. Pressed bearing. In FIG. 7, reference numeral 13a denotes a support roller bracket fixing portion formed by cutting out the edge of the support roller bracket 13 and fitted to the fixing portion 15.
Reference numeral 16 denotes a support bearing rotatably fixed to the support roller bracket 13. In FIG. 8, reference numeral 14a denotes a guide fixing portion of the guide portion 14 which is detachably fixed to the side surface of the frame 2, and 14b is formed in a substantially inverted U shape below the guide fixing portion 14a and fitted to the fixing portion 15. Long groove for locking,
Reference numeral 14c denotes a guide plate which is connected to the guide fixing portion 14a and is provided upright on the inner side of the edge of the conveyor belt 9.

The operation of the folding type conveyor of the first embodiment configured as described above will be described below. When the transport belt 9 is mounted between the roller 6 and the drive roller 8 on the entry side of the center-fold type conveyor 1, the concave locking portion 22 of the bearing frame bracket 5 is set as shown by a solid line in FIG.
After the conveyor belt 9 is inserted from the side surface of the frame 2 on the side of the open portion 4 and is engaged with the bearing frame engagement portion 18 projecting from the horizontal portion 2 c of the frame 2, and is passed over the entrance roller 6 and the drive roller 8. As shown by a dotted line in FIG. 4, the bearing frame fixing portion 23 is fitted to the fixing portion 15 provided at the tip of the horizontal portion 2c, and the bearing frame bracket 5 is fixed by the fixing portion 15.
Is fixed to the horizontal portion 2c of the frame 2 by screwing. next,
The bearing bracket engaging portion 11a of the bearing bracket 11 on which the pressing bearing 12 is supported is fitted to a fixing portion 15 provided near the bent portion 2b of the frame 2 and the bearing bracket 11 is fixed to the frame 2 by the fixing portion 15. The transport belt 9 is screwed onto the horizontal portion 2 c, and the edge of the transport belt 9 on the transport side is pressed by the press bearing 12 to align the transport belt 9 with the bent portion 2 b of the frame 2. Further, the support roller bracket fixing portion 13a of the support roller bracket 13 is fitted to a fixing portion 15 provided on the drive roller 8 side of the inclined portion 2a of the frame 2, and the support roller bracket 13 is fixed to the inclined portion 2c by the fixing portion 15. And the supporting bearing 16 supports the edge of the transport surface of the transport belt 9 on the return side. Next, the tension of the transport belt 9 is adjusted by adjusting the position of the entrance roller 6 with the adjusting bolt 21a of the adjusting unit 21. Further, the locking long groove 14b formed in the guide fixing portion 14a of the guide portion 14 is locked to the fixing portion 15 disposed at a predetermined position of the frame 2, and the locking long groove 14b is screwed with the fixing portion 15. Then, the guide plate 14c is erected on the edge of the conveyor belt 9. When removing the transport belt 9, the fixing portion 15 is loosened and the guide portion 14 and the bearing bracket 11 are removed.
After the support roller bracket 13 is removed from the frame 2, the bearing frame fixing portion 23 of the bearing frame bracket 5 is loosened by the fixing portion 15, and the bearing frame bracket 5 is turned over by the bearing frame locking portion 18 to convey the belt. 9 is released, and the conveyor belt 9 is pulled out from the opening 4. When cleaning the transport belt 9, the transport belt 9 is removed from the frame 2 and cleaned by washing or the like. Further, the frame 2 is pulled out from the frame support portion 3d and cleaned by washing or the like.

Next, a case where a scraper is attached to the entrance side of the folding center type conveyor 1 in the first embodiment will be described.
This will be described with reference to the drawings. FIG. 9 is a perspective view of a main part showing a state in which a scraper is attached to the entry side of the center folding type conveyor according to the first embodiment. In the drawing, reference numeral 9 'denotes a conveyor belt having no rail, reference numeral 24 denotes a scraper of the conveyor belt 9' provided with scraper guides 24a on both sides, reference numeral 25 denotes a scraper supporting portion having a base fixed to the scraper guide 24a, and reference numeral 25a.
Reference numeral denotes a scraper mounting portion which is formed by cutting a substantially inverted U-shape at the lower end of the scraper support portion 25 and is fitted to the fixing portion 15 which fixes the bearing frame bracket 5 to the horizontal portion 2c of the frame 2. The shape and the like of the scraper 24 are appropriately determined according to the shape of the transport belt 9 ', the articles transported by the transport belt 9', and the like. When the scraper 24 is attached to the center-fold type conveyor 1, the conveyor belt 9 'is attached to the horizontal portion 2c of the frame 2, and then the bearing frame bracket 5 is screwed to the horizontal portion 2c to be fixed to the fixing portion 15 which is fixed to the scraper attaching portion. 25a is fitted and fixed together with the bearing frame bracket 5. Thereby, the scraper can be easily attached, and the scraper can be easily attached and detached.

As described above, since the center-fold type conveyor according to the first embodiment is configured, the following operation is provided. Since the bearing bracket on which the holding bearing is pivotally supported is detachably fixed to the side near the bent part of the frame, simply screwing the bearing bracket to the frame at the fixed part and fixing it makes it possible for the holding bearing to convey on the transfer side. This has the effect that the edge of the conveying surface of the belt is pressed to adjust the conveying belt to the bent portion of the frame. Since the supporting roller bracket is disposed near the driving roller such as the driving roller bearing and presses the transport belt, the driving force of the driving roller can be transmitted with high efficiency. When the conveyor belt is loosened, it can be easily adjusted by the support roller bracket fixing section or the adjustment section of the bearing frame. In addition, even when the transport belt is likely to meander, there is an effect that fine adjustment can be performed and the meandering can be completely prevented since the adjusting portion of the bearing frame and the support roller bracket fixing portion of the support roller bracket are provided. The bearing frame bracket, the bearing bracket on which the holding bearing is pivotally supported, the support roller bracket on which the support roller is pivotally supported, and the guide portion are detachably screwed to the frame at the fixed portion, so that each component can be easily attached and detached. And has an effect of being excellent in maintenance management. The upper end of the leg portion of the leg is fixed to only one side of the frame, and the tension of the conveyor belt can be eased only by loosening the fixing portion of the bearing frame bracket. Since each component can be removed from the frame simply by loosening the fixing portion of the portion, the transport belt can be easily removed from the open portion. In addition, since the guide portion is detachably fixed to the side surface of the frame, the guide plate of the guide portion erected on the edge of the transport belt can prevent the articles transported on the transport belt from falling. . Further, since the scraper mounting portion is fitted to the fixed portion where the bearing frame bracket is fixed to the frame to fix the scraper supporting portion together with the bearing frame bracket, the scraper can be detached simply by loosening the fixed portion.

(Embodiment 2) A folding center type conveyor according to Embodiment 2 of the present invention will be described below with reference to the drawings. FIG. 10 is an overall perspective view of a center folding type conveyor according to the second embodiment, and FIG. 11 is an exploded perspective view of a tray portion of the center folding type conveyor according to the second embodiment. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the drawing, reference numeral 26 denotes a center folding type conveyor according to the second embodiment, 2b denotes a bent portion formed on the entrance side of the center folding type conveyor 26, and 2b 'denotes an upper bent portion formed on the exit side of the center folding type conveyor 26. Reference numeral 2c 'denotes an upper horizontal portion connected to the inclined portion 2a via an upper bent portion 2b'. Reference numeral 3c denotes an upright column portion of the leg 3 whose upper end is fixed to a side surface of the upper horizontal portion 2c 'of the frame 2. Is an adjusting leg disposed on the leg bottom 3a of the leg 3 for fine adjustment of the height, and 28 is an inclined portion 2a of the frame 2.
A support roller bracket 29 is detachably screwed to the substantially central side surface of the support member by the fixing portion 15.
A support bearing 30 rotatably supported by the conveyor belt and supporting an edge of the conveying surface of the conveying belt 9 on the return side; 30 is a scraper disposed at the end on the entry side of the guide plate 14c of the middle folding type conveyor 26; Reference numerals 32a, 32b, and 32c denote receiving trays which are detachably disposed below the conveyor belt 9 on the return side. In FIG. 11, reference numeral 33 denotes trays 32a, 32b, 3
A pan fixing portion 34 disposed on both sides of the tray 2c and detachably fixed to the frame 2 is a cutout portion formed at the upper end of the pan fixing portion 33 and locked to the pan locking portion 31 and the fixing portion 15, Is a receiving portion connected to the lower end of the receiving plate fixing portion 33. The operation of the folding-type conveyor according to the second embodiment configured as described above will be described below. The notches 34 formed in the tray fixing portions 33 of the trays 32a, 32b, and 32c are fixed to the tray locking portions 31 and the fixing portions 15 projecting from predetermined positions on both side surfaces of the frame 2, respectively. At 15, the trays 32a, 32b, 32c are screwed to the frame 2. When the transport belt 9 is detached, in addition to the operation described in the first embodiment, the fixing portion 15 is loosened, and the notch portion 34 of the tray fixing portion 33 receives the tray locking portion 31.
And the trays 32a, 32b,
32c is removed from the frame 2, and the transfer belt 9 is detached. As described above, the folding center type conveyor according to the second embodiment is configured, and thus has the following operation in addition to the operation described in the first embodiment. Since the tray is disposed below the return-side transport belt, there is an effect that the waste of the articles left on the transport belt can be received by the receiving portion of the tray. In addition, since the tray is detachably fixed to the frame, the tray can be detached from the frame when the conveyor belt is attached or detached or when the tray is washed.

(Embodiment 3) A folding center type conveyor according to Embodiment 3 of the present invention will be described below with reference to the drawings. FIG. 12 is a cross-sectional view of a main part of a folding center type conveyor according to the third embodiment. In FIG. 12, reference numeral 36 denotes a Z-shaped leg whose upper end is fixed to one side surface of the frame 2;
a is an inclined column portion of a leg portion 36 having an upper end fixed to one side surface of the frame 2 and a lower end inclined to the other side surface of the frame 2;
“b” is a leg bottom portion connected to the lower end of the inclined vertical column portion 36a. As shown in FIG. 12, when the Z-shaped leg 36 is used instead of the leg 3, the transport belt 9 can be pulled out from the opening 4 in the same manner as the operation described in the first embodiment. .

[0019]

As described above, according to the folding center type conveyor of the present invention, the following excellent effects can be realized. According to the center folding type conveyor according to the first aspect, (1) the transport belt can be pressed by the pressing bearing in accordance with the bent portion of the frame only by attaching the bearing bracket to the side surface of the frame. The conveyor belt can be adjusted to the bent portion of the frame, and the workability of mounting the holding bearing is excellent, and the workability of assembling the middle folding type conveyor can be improved.
Excellent productivity and mass productivity. (2) Since the roller bearing at one end is detachably or rotatably fixed to the frame, the tension of the conveyor belt can be reduced by loosening the fixing between the roller bearing and the frame, and the legs can be loosened. The part is fixed to only one side of the frame, and the bearing bracket is detachably fixed to the frame, so the conveyor belt can be pulled out from the open part just by removing the bearing bracket from the frame, and the workability of attaching and detaching the conveyor belt Excellent. (3) Since the conveyor belt can be easily attached and detached, the conveyor belt can be detached from the frame in a short time every time the work on the folding-type conveyor is completed, and the conveyor belt and the frame can be washed. The bearing can be easily cleaned, and the folding-type conveyor is excellent in cleaning workability and hygiene. According to the folding type conveyor according to the second aspect, in addition to the effects obtained by the first aspect, (4) the conveyance belt on the return side can be supported by the support rollers simply by attaching the support roller bracket to the frame, The return side of the conveyor belt can be supported with a simple structure, and the folding center conveyor is excellent in assembly workability. According to the middle folding type conveyor according to the third aspect, in addition to the effect obtained by the invention according to the first or second aspect, (5) the article being guided by the guide plate at the edge of the transport belt and being transported on the transport belt Can be prevented from dropping from the edge of the conveyor belt, and the guide section is detachably fixed to the frame, so it can be easily removed from the frame when attaching and detaching the conveyor belt. Excellent. (6) Since the bearing frame bracket of the roller bearing portion is rotatable on the bearing frame locking portion on the side of the frame and is detachable on the fixed portion, it can be easily removed at the time of maintenance such as roller replacement or cleaning. In addition, the number of man-hours and time required for repair and maintenance can be remarkably reduced, and the maintenance management is excellent. According to the folding type conveyor of the fourth aspect, in addition to the effects obtained by the inventions of the first to third aspects, (7) receiving the debris of the articles on the transport belt at the receiving side on the return side of the transport belt. Thus, it is possible to prevent the debris and the like of articles from falling below the folding-type conveyor, and to improve the working environment without soiling the surroundings. (8) Since the tray is detachably mounted, the tray can be easily removed and washed, so that the tray can be easily cleaned and hygiene can be improved. According to the folding-type conveyor according to the fifth aspect, in addition to the effects obtained by the invention according to any one of the first to fourth aspects, (9) the articles placed on the transport belt enter the transport belt. It can be prevented from falling off from the side. (10) When the lower end of the scraper and the conveying surface of the conveyor belt are in contact with each other, dust or the like adhering to the conveyor surface of the conveyor belt can be removed by the scraper as the conveyor belt is driven. Dirt and the like can be prevented from accumulating on the transport surface of the transport belt.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a main part of a folding center type conveyor according to a first embodiment.

FIG. 2 is a cross-sectional end view of a main part of the center folding type conveyor according to the first embodiment.

FIG. 3 is a rear perspective view of a main part of the center folding type conveyor according to the first embodiment.

FIG. 4 is a perspective view of a main part of a roller bearing on the entry side of the center-fold type conveyor according to the first embodiment.

FIG. 5 is a perspective view of a main part of a bearing frame bracket of the center folding type conveyor according to the first embodiment.

FIG. 6 is an exploded perspective view of a main part of a bent portion of the center folding type conveyor according to the first embodiment.

FIG. 7 is an exploded perspective view of a main part on the output side of the folding center type conveyor according to the first embodiment.

FIG. 8 is an exploded perspective view of a main part of a guide section of the folding center type conveyor according to the first embodiment.

FIG. 9 is a perspective view of a main part showing a state in which a scraper is attached to the entry side of the center folding type conveyor according to the first embodiment.

FIG. 10 is an overall perspective view of a folding center type conveyor according to the second embodiment.

FIG. 11 is an exploded perspective view of a tray portion of the center folding type conveyor according to the second embodiment.

FIG. 12 is a cross-sectional view of a main part of the center-fold type conveyor according to the third embodiment.

FIG. 13 is an overall perspective view of a conventional folding-type conveyor.

BRIEF DESCRIPTION OF THE REFERENCE NUMERALS 1 Mid-bend conveyor 2 Frame 2a Inclined portion 2b Bent portion 2b 'Top bent portion 2c Horizontal portion 2c' Top horizontal portion 3 Leg 3a Leg bottom 3b Wheel 3c Upright column 3d Frame support 3f Frame Fixed part 4 Opening part 5 Bearing frame bracket 6 Entry roller 7 Driving roller bearing part 8 Driving roller 9, 9 'Conveying belt 9a Bar 10 Drive unit 11 Bearing bracket 11a Bearing bracket locking part 12 Press-bearing 13 Support roller bracket 13a Supporting roller bracket fixing portion 14 Guide portion 14a Guide fixing portion 14b Locking long groove 14c Guide plate 15 Fixing portion 16 Support bearing 17 Intermediate roller 18 Bearing frame locking portion 19 Bearing frame 20 Roller shaft support portion 21 Adjusting portion 21a Adjusting bolt 22 Stop 3 Bearing Frame Fixing Section 24 Scraper 24a Scraper Guide 25 Scraper Supporting Section 25a Scraper Mounting Section 26 Folding Conveyor 27 Adjusting Leg 28 Supporting Roller Bracket 29 Supporting Roller 30 Scraper 31 Receiving Plate Locking Section 32a, 32b, 32c Receiving Plate 33 Receiving Plate Fixing Part 34 Notch portion 35 Receiving portion 36 Leg portion 36a Inclined vertical column portion 36b Leg bottom portion 50 Center folding conveyor 51 Frame 52 Leg portion 53 Entry roller 54 Outgoing roller 55 Conveyor belt 55a Beam 56 Drive portion 57 Roller holding portion 58 Pressing Roller 59 Supporting roller 60 Adjusting part 61 Fitting hole part 62 Adjusting bolt

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI B65G 45/12 B65G 45/12 Z 45/26 45/26 Z

Claims (5)

[Claims] 1. A frame having one or more bent portions in a longitudinal direction, a leg fixed to one side of the frame, and an opening formed below the frame to which the leg is not fixed. Part, a roller bearing part disposed at both ends in the longitudinal direction of the frame, at least one end of which is detachably or rotatably fixed, and an endless end mounted between rollers supported by the roller bearing part. A conveyor belt composed of a belt, a driving unit for driving the conveyor belt, a pressing bearing disposed on the bent portion and pressing an edge of the conveyor belt on the conveyor side, and detachably fixed to a side surface of the frame. And a bearing bracket on which the holding bearing is rotatably supported. 2. A support roller for supporting an edge on the return side of the conveyor belt, and a support roller bracket fixed to each side of the frame so as to be detachable and rotatably supported by the support roller. The folding conveyor according to claim 1, wherein the conveyor is provided. 3. The method of claim 2, wherein the frame comprises: a. A guide portion and / or b having a guide fixing portion detachably fixed to each side surface, and a guide plate connected to the guide fixing portion and erected on an edge side of the transport belt on the transport side. . A roller frame in which the roller bearing portion is symmetrically mounted, and a groove-shaped roller shaft having an open end formed in parallel with one end in the longitudinal direction of the bearing frame or an elongated roller shaft having no open end. A support portion, a bearing frame fitting portion formed by cutting out at the other end portion, a bearing frame fixing portion formed in a concave shape on the lower side, and a reinforcing stay fixed to each inside of the bearing frame are provided. 3. The folding conveyor according to claim 1, further comprising a bearing frame bracket. 4. The folding type conveyor according to claim 1, further comprising a tray detachably disposed below a return side of the conveyor belt. 5. The center fold according to claim 1, further comprising a scraper provided at the longitudinal end portion of the guide portion or the roller bearing portion. Formula conveyor.