JPH11334823A - Belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt conveyor whose endless belt can be set and removed easily when necessary even in the case there is no spaciousness around the conveyor. SOLUTION: A belt setting pulley device 12 on the driving side is installed at one end of a body frame 11 while a belt setting pulley device 13 on the driven side is installed at the other end. Part of the pulley device 12 is attached removably to the body frame 11, while the other pulley device 13 is installed on the body frame 11 in such a way as capable of bending and also being removed. Between the two pulley devices 12 and 13, an endless belt 14 is set in such a way as capable of running around. The body frame 11 is formed from a pipe having a circular section, and a belt receptacle 15 is installed in such a way as capable of being opened and closed in the two-side opening form from the center about the body frame 11 used as fulcrum. The belt receptacle 15 is positioned between the under-part and over-part of the endless belt 14 in the closed condition and supports the load with transported objects through the over-part of the belt 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor having a belt detachable structure.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional belt conveyor capable of attaching and detaching a belt has a belt receiving plate 2 provided integrally between a main body frame 1 and one end and the other end of the main body frame 1. The endless belt 5 is rotatably wound around the belt winding roller 3 at one end, the belt receiving plate 2 and the belt winding roller 4 at the other end. 1 is a support leg 6 on one side
And a belt loosening device 7 for loosening the endless belt 5 with respect to the one belt winding roller 3.

When the endless belt 5 is contaminated, the tension of the endless belt 5 is loosened by a belt loosening device 7, and the endless belt 5 is moved to the side where the support leg 6 is not provided, so that the belt receiving plate 2 The belt 5 is removed from the belt winding rollers 3 and 4, and the endless belt 5 is washed with water.

[0004]

In this conventional apparatus, it is necessary to secure a sufficient working space on the side from which the endless belt 5 is removed. If there is, there is a problem that the endless belt 5 cannot be easily attached or detached and the endless belt 5 cannot be replaced in a short time.

[0005] The present invention has been made in view of such a point, and even if there is no extra space around the conveyor,
It is an object of the present invention to provide a belt conveyor capable of easily attaching and detaching an endless belt as needed.

[0006]

According to the first aspect of the present invention, there is provided a main body frame, a belt wrapping ring device provided at one end and the other end of the main body frame, at least a part of which is separable, An endless belt wound around the belt winding device at both ends so as to be freely rotatable, and provided between the lower and upper portions of the endless belt in an openable and closable manner on the main body frame. And a belt receiver for supporting the section.

[0007] With this, at least a part of each of the belt winding device at one end and the other end is separated, the belt receiver is opened, and the endless belt is taken out from above or below the main body frame.

According to a second aspect of the present invention, in the belt conveyor according to the first aspect, the main body frame is formed of a pipe having a circular cross section.

Accordingly, the main body frame having a circular cross section is
Dust is less likely to accumulate and is easier to clean than a rectangular cross-section frame, and itself serves as a pivot for opening and closing the belt receiver.

According to a third aspect of the present invention, in the belt conveyor according to the first or second aspect, the belt wrapping device is provided on a driving side in which a part of the belt wrapping device is detachably attached to one end of the body frame. , And a driven side belt wrapping device provided to be bendable and detachable with respect to the other end of the main body frame.

The endless belt is loosened when the belt receiving member is opened by bending the driven belt wrapping ring device, and a part of the driving side belt wrapping ring device is removed and opened. Then, by opening the belt receiver, and further removing the driven-side belt wrapping device from the main body frame and removing it from the endless belt, the worker moves from the driven side to the driving side along the main body frame. It is possible to remove the endless belt from the main body frame while winding it up.

According to a fourth aspect of the present invention, in the belt conveyor according to any one of the first to third aspects, the belt receiver is provided to be reversible about the main body frame as a fulcrum.

Thus, when the back side of the belt receiver is dirty, the belt receiver is inverted and cleaned.

According to a fifth aspect of the present invention, in the belt conveyor according to any one of the first to fourth aspects, the belt receiver is provided so as to be openable and closable with a double door opening from the center.

Thus, the double-opened belt receiver is
It takes up less space when opening in the endless belt than in the case of one-sided opening, and opens all over the main body frame.

According to a sixth aspect of the present invention, there is provided the belt conveyor according to any one of the first to fifth aspects, wherein the main body frame is provided with a worktable which is detachable.

Thus, the work table is used by being engaged with the main frame as required.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS.

FIGS. 1 and 2 show the entire belt conveyor. At one end and the other end of a main body frame 11, at least partially separable belt winding devices 12, 13 are provided, respectively. Belt wrapping device 12 at both ends of
An endless belt 14 is wrapped around 13 in a freely rotatable manner.

A belt receiver 15 divided into four blocks is provided on the main body frame 11 so as to be openable and closable. Each of the belt receivers 15 is positioned between the lower portion 14a and the upper portion 14b of the endless belt 14 in a closed state, and supports the upper portion 14b.

The belt wrapping device 12 at one end is a driving-side belt wrapping device that is partially detachable from one end of the main body frame 11, and the belt wrapping device at the other end. The device 13 is a driven-side belt wrapping device that is provided on the other end of the main body frame 11 so as to be bendable and detachable.

As shown in FIGS. 2 and 3, four legs 17 are integrally attached to the lower side of the main body frame 11 by a joint 16, and casters are attached to lower ends of these legs 17. 18 is attached, and the main body frame 11 is movably supported.

A reinforcing member 20 formed into an H shape by a joint 19 is integrally attached between the legs 17 by a joint 21 to reinforce the space between the legs 17.

The body frame 11, the legs 17, and the reinforcing member 20
As shown in FIG. 3, are all formed of pipes having the same diameter and a circular cross section. Furthermore, each joint 16, 19, 21
Is a pulley-shaped disk having a T-shaped pipe insertion hole with a circular cross section. For this reason, there is an advantage that the conveyor body can be formed only by pipes and joints of the same standard.

As shown in FIG. 4, the drive side belt wrapping device 12 includes a drive side roller 22 and a drive side roller 22.
And a drive unit 24 for driving the drive-side roller 22.

Roller support 23 for supporting drive-side roller 22
A housing 26 with a built-in bearing is integrally mounted on one end roller hanger 25 formed by extending the end of the one body frame 11a, and the driving roller 22 is mounted by a bearing in the housing 26. And one end of a roller shaft 27 protruding from one end surface thereof is rotatably supported.

Further, the roller supporting portion 23 has a semi-notched portion 28 in which the end of the main body frame 11b on the other side is formed by half notching.
A half notch 30 in which one end of the other end roller hanger 29 is formed by half notch is engaged, and slidably fitted to the end roller hanger 29 on the outer peripheral surface of both these half notches 28, 30. By fitting the lock sleeve 31 that has been set, both the half notches 28 and 30 are fixed.
A housing 33 is integrally attached to the housing 29, and a fitting recess 34 is formed on an inner surface of the housing 33.

A roller housing 35 with a built-in bearing is rotatably fitted to the other end of the roller shaft 27 protruding from the other end surface of the drive roller 22, and is integrally formed with the roller housing 35. The above-mentioned housing 33 is
The fitting concave portion 34 is fitted so as to be freely detachable.

Therefore, the belt winding device 12 on the driving side only moves the lock sleeve 31 toward the housing 33 and removes the lock sleeve 31 from the engaging portion of the semi-notches 28, 30. The housing 33 can be removed to provide a cutout opening at this point, and at this time, the drive roller 22 is cantilevered.

With this cantilever support structure, it can be said that a part of the driving side belt wrapping device 12 is detachably provided to one end of the main body frame 11.

A driving section 24 for driving the driving roller 22
A bracket 37 is fitted to one of the legs 17, a motor mounting plate 38 is fixed to the bracket 37 and the housing 26 on one side by screws, and a spacer 39 is provided inside the motor mounting plate 38 via a spacer 39. The main body of the motor 40 is attached
The main body of the motor 40 is covered by a motor cover 41 mounted on the inside of the motor mounting plate 38 via waterproof packing.

On the other hand, driving force transmitting pulleys 43 and 44 are integrally fitted to the motor shaft 42 and the roller shaft 27 protruding outside the motor mounting plate 38, respectively. A driving force transmission belt 45 is wound between 44,
A driving force transmission system is configured. This driving force transmission system
It is covered by a belt cover 46 attached to the outside of the motor mounting plate 38 via a waterproof packing.

With the motor cover 41 and the belt cover 46 attached via the waterproof packing, it is possible to cope with a conveyed article containing moisture, a conveyed article containing moisture, a conveyed article with moisture, and the like.

As shown in FIGS. 5 and 6, the driven belt wrapping device 13 includes a driven roller 51 and a roller supporting portion for rotatably supporting both ends of the driven roller 51.
52 and. The mounting structure of the roller support 52 is as follows.
It is as follows.

Sleeves 53 are respectively fitted to the ends of the main body frames 11 on both sides, and the rotating shafts 55 of the adjusting bolts 54 are respectively fitted to these sleeves 53 so as to be freely rotatable.
The stopper rings 56 prevent the stopper rings from locking.

The adjusting bolts 54 on both sides are integrally formed with a pivoting flange portion 57 at the center thereof, and a threaded portion 58 is formed on the opposite side of the rotating shaft portion 55 through these flange portions 57. Are formed respectively.

Each screw portion 58 of these adjusting bolts 54
The nut members 59 each having a cylindrical shape are screwed into the nut members 59. The nut members 59 each have a convex portion 60 formed at the center of the tip, and a concave groove 61 is formed above these convex portions 60. I have.

The convex portions 60 of the nut members 59 are fitted with concave portions 63 formed at the ends of both end roller hangers 62 that support both ends of the driven roller 51. .

The ends of the end roller hangers 62 on both sides are connected by a roller shaft 64 at their leading ends.
The driven-side roller 51 is rotatably fitted via a bearing, and the opposite concave portions 63 are connected by a carrier roller shaft 65. Carrier rollers 66, 67 are connected to the carrier roller shaft 65. It is fitted rotatably.

Both ends of the carrier roller shaft 65 function as a bending support shaft and a detachable shaft of the end roller hanger 62, and are rotatable and detachable in the concave grooves 61 on the convex portions 60 of the nut members 59 on both sides. Is fitted.

Further, the lock sleeves 68 on both sides are slidably fitted from the respective nut members 59 to the respective end roller hangers 62 so that the nut members 59 and the end roller hangers 62 are integrated. Inside the lock sleeves 68, axial grooves (not shown) for fitting with the carrier roller shafts 65 are respectively cut out.

By sliding these lock sleeves 68 toward the adjustment bolts 54 as shown in FIG. 6, the end roller hanger 62 of the driven roller 51 is bent, and the carrier roller shaft of the driven roller 51 is bent.
65 can be removed from the groove 61 of each nut member 59.

With such a structure, it can be said that the driven side belt wrapping device 13 is provided to be bendable and detachable from the end of the main body frame 11.

When the adjusting bolts 54 on both sides are rotated, the nut members 59 on both sides move in the axial direction, and the driven roller 51 can be moved and adjusted in the longitudinal direction of the endless belt 14. Can be adjusted.

As shown in FIG. 7, the belt receiver 15 divided into four blocks is formed of two pipes having a circular cross section which constitute the main body frame 11.
It is provided so as to be rotatable around 11A and 11B as a fulcrum up to an inversion angle shown by a two-dot chain line in FIG.

As shown in FIG. 1, each belt receiver 15 has a plurality of carrier plates 71 elongated in the moving direction of the endless belt 14 assembled to a plurality of carrier plate support portions 72. A hinge 73 provided at the base end of the carrier plate support 72 is rotatably fitted to the pipes 11A and 11B of the main body frame 11 within a limited rotation range as shown in FIG. ing.

As shown in FIG. 7, an annular hinge ring 74 is rotatably fitted to the pipes 11A and 11B of the main body frame 11, and the hinge portion 73 of the belt receiver 15 is rotatably fitted to the hinge ring 74. The base end of the carrier plate support 72 is fixed with a plurality of screws 75.

Each of the carrier plate supports 72 is provided as shown in FIG.
As shown in FIG. 6, a pair of support plates 76 provided on both sides of the hinge ring 74 via the hinge ring 74 are integrated by the screw 75.

As shown in FIG. 7, each support plate 76 has an arc-shaped portion 77 formed at the base end thereof.
In a tangential direction from one side of 77, a closing position locking portion 78 that locks the rotation in the closed state of the belt receiver 15 is provided to project,
An open position locking portion 79 that protrudes from the other side of the arcuate portion 77 in the radial direction and locks the rotation of the belt receiver 15 in an open state. Further, hook portions 81 and 82 are formed on the upper portions on the distal end side and the proximal end side of each support plate 76, respectively.

On the other hand, each carrier plate 71 is
As shown in the figure, the endless belt
The upper plate portion 83 that receives the load of the transported object on the upper portion 14, the side plate portions 84 that are bent on both sides of the upper plate portion 83, and the outer plate portions 84 that are bent outward from these side plate portions 84, respectively. The lower edge 85 is formed.

The mounting of the carrier plate 71 is performed by connecting the hook portions 81, 81 on the distal end side and the proximal end side of the support plate 76.
The lower edge 85 of each side of the carrier plates 71a, 71b located on the left and right is engaged with 82, and between the left and right carrier plates 71a, 71b and the central carrier plate 71c disposed therebetween. The holding plate 87 is fitted into the formed recess 86, and the adjacent carrier plates 71a, 71c and 71
The holding plate 87 is placed on the lower edge 85 facing each other at b and 71c, and the bolt 88 inserted from above the holding plate 87 is screwed into the nut member 89 engaged with the lower side of the supporting plate 76. By tightening together, each carrier plate is
The lower edge 85 of the 71 can be easily fixed on the support plate 76.

The means for limiting the rotation range of the belt receiver 15 includes a closed position locking portion 78 and an open position locking portion 79 projecting from the base end of the support plate 76, and FIGS. As shown in FIG. 2, a small-diameter locking rod 90 attached in parallel with a joint 16 to the lower side of the main body frame 11 formed of a large-diameter pipe, and locked in the closed position by the locking rod 90. The part 78 or the open position locking part 79 is locked.

Next, the operation of the embodiment shown in the drawings will be described.

This belt conveyor is used, for example, for packing various side dishes into boxes from both sides of the conveyor while transporting a lunch box by the endless belt 14. For this reason, it is necessary to remove the endless belt 14 and to wash the body frame 11, the endless belt 14, the belt receiver 15, and the like occasionally. The procedure for removing the endless belt 14 will be described below.

First, as shown in FIG. 6, both side lock sleeves 68 provided on the driven side belt wrapping device 13 are provided.
Is moved to the adjustment bolt 54 side to release the fixing of the end roller hanger 62 by the lock sleeve 68, and raise the carrier roller shaft 65 upward with respect to the nut member 59 with the end roller hanger 62 of the driven roller 51 as a fulcrum. By bending as described above, the tension of the endless belt 14 is loosened, and the opening operation of the belt receiver 15 is enabled.

Further, by sliding the lock sleeve 31 of the belt winding device 12 on the driving side shown in FIG. The end roller hanger 29 and the housing 33 on one side of the roller 22 are removed, and a cutout opening is provided here.
In this state, the driving roller 22 is cantilevered.

Further, the upper part of the loose endless belt 14
While lifting 14b, as shown in FIG. 7, using the pipes 11A and 11B of the main body frame 11 as fulcrums,
The four belt receivers 15 are opened from the center to the double doors.

The double-leafed belt receiver 15 can be opened and closed easily in the endless belt 14 with a limited amount of slack, taking up less space when opened in the endless belt 14 than in the case of one-sided opening. The inside of the frame 11 can be opened over the entire width.

Further, since the groove 61 of the nut member 59 is opened upward by the release operation of the lock sleeve 68, the carrier roller shaft 65 is taken out from the groove 61 so that the driven roller 51 Remove the end roller hanger 62 from.

At this time, the end roller hangers 62 on both sides
And a roller shaft 64 of the driven roller 51 connected between one end thereof, and a carrier roller connected between the other end thereof.
The driven side belt wrapping device 13 formed in a rectangular frame shape with the 66 and 67 carrier roller shafts 65 is completely separated from the main body frame 11, and is pulled out from the endless belt 14 to the side. Can be put out.

In this way, the driven side belt wrapping device
The operator removes the endless belt 14 from which the belt 13 has been removed to the drive side along the main body frame 11 while removing the belt receiver 15 onto the main body frame 11 in the double-open state so that the endless belt 14 is wound from the driven side. The endless belt 14 is moved to the drive-side belt wrapping wheel device 12 in the cantilever support state.

Finally, the driving side belt wrapping device 12
Then, the endless belt 14 is pulled out from the notch opening provided by removing the end roller hanger 29 on one side.

The endless belt 14 is washed in another place, and then the belt winding device on the driving side is operated in the reverse procedure.
12, driven side belt wrapping device 13 and belt receiver 15
Attach to

For this reason, even if a work table or the like is arranged on both sides of the main body frame 11 only through a narrow space where the worker stands and works, the operator moves on one side of the main body frame 11. If there is enough space, the endless belt 14 can be easily attached and detached in a short time, and the efficiency of the belt replacement operation can be improved.

The body frame 11 from which the endless belt 14 has been removed can be washed with water at that location.
At this time, the main body frame 11 having a circular cross section is less likely to accumulate dust and is easier to clean as compared with a conventional frame having a rectangular cross section.

In particular, the main body frame 11 having a circular cross section itself serves as an opening / closing support shaft of the belt receiving body 15, and as shown in FIG. Since the belt receiver 15 is opened and turned over by more than 0 °, the back side of the belt receiver 15 can be easily washed, and the stain on the back side can be easily removed.

Next, as shown in FIG. 8, a worktable 91 which can be detachably attached to the main body frame 11 can be used by being attached to the main body frame 11 as required.

The work table 91 has a mounting plate 94 mounted on a plurality of support plate portions 93 integrated by a plurality of transverse connecting rods 92.

The support plate 93 has, at its base end, an arcuate hook 95 which is engaged with the main frame 11 of the large diameter pipe.
A locking portion 96 that contacts the small diameter locking rod 90 is formed, and a convex portion 97 that supports the mounting plate 94 is formed on the upper portion.

A notch groove 98 formed on the distal end side of the support plate 93
Folding edge 100 provided on the side plate portion 99 on one side of the mounting plate 94
And the bent edge 103 provided on the other side plate 102 on the other side of the plate 94 on the cut groove 101 formed on the base end side of the support plate 93 to engage the side plate. 102 and adjacent protrusions
By inserting the holding block 104 between the mounting plate 97 and the mounting plate 94, the mounting plate 94 can be easily attached.

The work table 91 can be easily mounted and moved upward simply by engaging the hook portion 95 with the main body frame 11 from the upper side and abutting the locking portion 96 with the locking rod 90. It can be easily removed with just one.

Next, an embodiment different from the illustrated embodiment will be described.

The illustrated belt receiver 15 is a carrier table that receives the upper portion 14b of the endless belt 14 by a plurality of carrier plates 71. The upper portion 14b of the endless belt 14 is fixed by a number of rollers (not shown). The receiving carrier roller may be a belt receiver.

Although the illustrated belt receiver 15 is opened upward, it may be opened downward.

Although the illustrated belt receiver 15 is opened and closed with double doors from the center, the end roller hanger 62 on the driven side is formed to be long, and the endless belt is bent by the bending operation.
If a large amount of slack can be obtained from the main body frame 11 on the other side, the belt receiver 15 is supported by the main body frame 11 on one side as a fulcrum.
It may be a one-way type that can be opened and closed with

In the case of this one-way opening type, when the belt receiver 15 is opened upward or downward, the endless belt 14 can be opened integrally with the belt receiver 15 and removed. In this method, the endless belt 14 can be quickly and easily removed by also removing the driving roller 22 and the like in advance.

Further, the belt receiver on one side may be fixed from the center, and only the belt receiver on the other side may be opened in one side. Alternatively, the belt receiver 15 openable from the center may be opened in one side. The endless belt 14 may be removed as it is.

In short, at least a part of each of the belt wrapping devices 12 and 13 at the one end and the other end is separated, and the belt receiver 15 is opened to move the endless belt 14 above or below the main body frame 11. Remove it downward.

[0079]

According to the first aspect of the present invention, at least a part of each of the belt wrapping device at one end and the other end is separated and the endless belt is opened by opening the belt receiver. The endless belt can be taken out of the frame upward or downward.Even if there is no space around the conveyor, the endless belt can be easily attached and detached in a short time, and the work required for maintenance such as cleaning of the endless belt and body frame or replacement of parts Efficiency can be improved.

According to the second aspect of the present invention, the main body frame formed by the pipe having the circular cross section is less likely to accumulate dust than the rectangular cross section frame, is easy to clean, and is excellent in hygiene. In addition, the main body frame having a circular cross section itself also serves as an opening / closing support shaft of the belt receiver, thereby simplifying the support structure of the belt receiver.

According to the third aspect of the present invention, the endless belt is loosened when the belt receiving member is opened by bending the driven belt wrapping device, and the driving side belt wrapping device is opened. , The belt receiver is opened, and the driven belt wrapping device is removed from the main body frame and removed from the endless belt. The endless belt can be easily removed from the main frame while moving from the main body to the drive side while winding the endless belt.

According to the fourth aspect of the present invention, since the belt receiver is provided to be reversible around the main body frame, the back side of the inverted belt receiver can be easily cleaned,
Workability can be improved.

According to the fifth aspect of the present invention, the belt receiver which can be opened and closed with a double opening from the center can be easily opened and closed within the endless belt with a limited slack amount as compared with the case of the single opening, and the main body frame The inside can be opened over the entire width.

According to the sixth aspect of the present invention, a worktable which can be freely attached to and detached from the main body frame can be used by being attached to the main body frame as necessary, and the workability can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a belt conveyor according to the present invention.

FIG. 2 is a front view of the same belt conveyor.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a plan view of a belt winding device on a driving side of the belt conveyor.

FIG. 5 is a plan view of a driven-side belt wrapping device of the belt conveyor.

FIG. 6 is a front view of the driven side belt wrapping wheel device with a part cut away.

FIG. 7 is a cross-sectional view illustrating a belt receiver in the belt conveyor according to the first embodiment.

FIG. 8 is a front view showing a work table engaged with the belt conveyor.

FIG. 9 is a perspective view showing a conventional belt conveyor with a removable belt.

[Explanation of symbols]

 11 Body frame 12 Drive side belt wrapping device 13 Driven side belt wrapping device 14 Endless belt 14a Lower part 14b Upper part 15 Belt receiver 91 Workbench

Claims (6)

[Claims] 1. A main body frame, a belt wrapping device provided at one end and the other end of the main body frame, at least a part of which is separable, and freely rotatable between the belt wrapping device at both ends. An endless belt wound around the endless belt, and a belt receiver that is provided between the lower and upper portions of the endless belt in a closed state and that supports the upper portion in a closed state. And belt conveyor. 2. The belt conveyor according to claim 1, wherein the main body frame is a pipe having a circular cross section. 3. A belt wrapping device on a driving side, which is partially detachable from one end of a main body frame, and a belt wrapping device which is bendable and detachable from the other end of the main body frame. The belt conveyor according to claim 1, further comprising a driven side belt wrapping device provided so as to be capable of being driven. 4. The belt receiving body is provided to be reversible about a main body frame as a fulcrum.
A belt conveyor according to any one of the above. 5. The belt conveyor according to claim 1, wherein the belt receiver is provided so as to be openable and closable with a double door opening from the center. 6. The belt conveyor according to claim 1, further comprising a worktable detachable from the main body frame.