JP2001163427A - Belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a strong structure capable of performing work by oneself in a belt conveyor requiring to frequently attach a belt. SOLUTION: This belt conveyor comprises a conveyor frame 1 and a leg frame 2, and in the conveyor frame 1, one side edge is rotatably installed on the leg frame 2 by a hinge metal fitting 3, the openable the other side edge can be firmly fixed by a locking metal fitting, and a stand metal fitting for maintaining an opening state is installed to take in and out a conveyor belt. An auxiliary frame 7 for installing an end roller 6 is installed on one end of the conveyor frame 1 so as to jump up and be rotatable, and a slider 17 having a stopper 8 for the auxiliary frame 7 to maintain a horizontal state and a locking claw 18 for preventing a jumping-up rotational movement is arranged on a side plate 1a of the conveyor frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a conveyor that requires frequent attachment and detachment of a belt, such as a belt conveyor for removing and cleaning and disinfecting a belt every day in a food factory.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Application Laid-Open No. 8-324744, a conveyor belt is wound around a long conveyor frame, and a leg frame for supporting the conveyor frame. The conveyor belt is disengaged from the leg frame at the side of the conveyor frame, and at least one end roller disposed at each end of the conveyor frame is attached to the auxiliary frame, and the auxiliary frame is detachably attached to the conveyor frame. A belt conveyor is known in which the belt conveyor can be detached from a side of a conveyor frame.

[0003]

The above-mentioned known belt conveyors are not always easy to attach and detach the conveyor belt, and have a sufficient strength, for example, because the conveyor frame has a cantilever structure. In view of such circumstances, the present invention is to obtain a belt conveyor having a structure that can easily perform attachment and detachment of the conveyor belt by one person, and has a sufficient strength while having a simple structure,
It is an object of the present invention to obtain a belt conveyor that can withstand as large a transfer load and a transfer speed as possible.

[0004]

The conveyor according to the present invention comprises a long conveyor frame 1 around which a conveyor belt is wound, and leg frames 2 for firmly supporting the conveyor frame 1. The conveyor frame 1 can release the connection state with the leg frame on at least one side. Specifically, one side of the conveyor frame 1 is hinged to the hinge frame 3 with respect to the leg frame 2.
, And the other side of the conveyor frame 4 can be disengaged from the leg frame 2 with the latch 4 so that one side of the conveyor frame can be held between the conveyor frame 1 and the leg frame 2. A stand fitting 5 is provided for holding the stand in a state of being lifted by a certain dimension.

At the end of the conveyor frame 1 supported by the leg frame 2, the left and right side plates 7 a, 7 a of an auxiliary frame 7 having an end roller 6 attached to the end are attached to the conveyor frame 1.
, And can be flipped and pivoted. Then, at a position where the auxiliary frame 7 is horizontal,
, Specifically, a part of the side plates 7a, 7a of the auxiliary frame 7 abuts against the side plates 1a, 1a of the conveyor frame 1 to prevent the stopper 8 from rotating downward. A possible auxiliary frame 7 is locked in a horizontal position. Further, the side plates 1a, 1a of the conveyor frame 1 are provided with lifting prevention means for preventing the auxiliary frame 7, which is engaged with the stopper 8 during operation of the conveyor and is prevented from rotating downward, from being flipped up. Provide.

[0006] With the above configuration, one side of the conveyor frame 1 is held in an elevated state, and the auxiliary frame 7 is flipped up so that an endless end of the conveyor frame 1 is opened from the opened side of the conveyor frame 1. The conveyor belt 9 can be attached and detached. The belt conveyor requires a conveyor belt driving means and a tension roller. The drive roller 10 of the conveyor belt 9 is
The conveyor frame 1 is mounted on a drive roller side plate 11 vertically provided on both right and left sides. A drive roller 10 and a snap roller 12 and a tension roller 13 are attached to the drive roller side plate 11, and the conveyor belt 9 is wound. The snap roller 12 and the tension roller 13 mounted on the driving roller side plate 11 are detachably attached to a locking means formed on the inner surface of the driving roller side plate 11 so that the conveyor belt 9 can be detached.
Can be easily attached and detached.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the belt conveyor according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of the entire belt conveyor without a conveyor belt attached thereto, and FIGS. 2 and 3 are cross-sectional views taken along the width of the conveyor.

The belt conveyor according to the present invention comprises a long conveyor frame 1 around which an endless conveyor belt 9 is wound, and a leg frame 2 for firmly supporting the conveyor frame 1. One side of the conveyor frame 1 is rotatably mounted by two hinge fittings 3 in the drawing. As shown in FIG. 2, the other side of the conveyor frame opposed to the hinge fitting 3 is firmly fixed to the connected state by a locking fitting 4 commonly called a patch key.

The engagement by the latch 4 is released, one side of the conveyor frame 1 is lifted as shown in FIG. 3, and the stand bracket 5 releases the connection of the side of the conveyor frame 1 to the leg frame. So that it can be maintained. Conveyor frame 1
Is provided at one end with an auxiliary frame 7 having an end roller 6 attached to the end. By making the auxiliary frame 7 flip-up and / or detachable, the conveyor belt 9 wound around the conveyor frame 1 can be taken in and out from the side of the conveyor frame as shown by an arrow in FIG. .

An auxiliary frame 7 disposed at one end of the conveyor frame 1 supports a shaft 6a of an end roller 6 in a U-shaped cut 7b drilled backward from the tips of the left and right side plates 7a, 7a. By doing so, the end roller 6 is detachably mounted. End roller 6 is simply cut 7b
, The tension of the conveyor belt pushes the end roller 6 deep into the cut. The base end of the auxiliary frame 7 itself is connected to the side plates 1a, 1a
As shown in FIG. 4 (c), it is pivotally supported by a support shaft 14 projecting sideways from the shaft.

The support shaft 14 projecting laterally from the side plates 1a of the conveyor frame 1 is a shaft with a flange. On the other hand, a U-shaped cut 15 is formed in the side plate 7a of the auxiliary frame 7 from the rear toward the front, and the U-shaped cut 15 is fitted to the support shaft 14 so as to be freely rotatable.
The auxiliary frame 7 can be detached forward. That is, a force pressing the conveyor frame 1 rearward acts on the auxiliary frame due to the tension of the conveyor belt 9, so that the U-shaped cut 15 is simply fitted into the support shaft 14 from the front and does not fall off.

The auxiliary frame 7 can surely maintain a horizontal state as shown in FIG. 4 (a), and, at the same time, as shown in FIG. It can be flipped and turned. In order to be able to maintain the auxiliary frame 7 in a horizontal state, the side plates 7a, 7a of the auxiliary frame 7 are extended rearward on the side below the U-shaped cut 15 so as to engage with the locking portions 16a. And a stopper 8 is fixed to the side plate 1a of the conveyor frame 1. The stopper 8 contacts the upper side of the locking portion 16 when the auxiliary frame 7 is in a horizontal state, and prevents the tip of the auxiliary frame 7 from rotating below the horizontal.

Further, there is provided means for preventing the auxiliary frame 7 from rising when the locking portion 16 of the auxiliary frame 7 is in contact with the stopper 8. This lifting prevention means is realized by providing a slider 17 having an engaging claw 18 for engaging with the lower side of the locking portion 16 of the auxiliary frame 7 on the side plate 1a of the main body frame 1.
The slider 17 is mounted on a side plate 1a of the conveyor frame 1 with a set bolt indicated by a two-dot chain line with a flat plate having a lower end portion with an engaging claw 18 protruding forward. At this time, the mounting holes 19 for the set bolts are made into long holes, and the sliders 17 are moved to the conveyor frame 1 by loosening the set bolts.
Can be slid in the longitudinal direction of the device. When driving the belt conveyor, push the slider 17 forward,
Auxiliary frame 7 by fixing with set bolts
Of the slider 17 and the engagement claw 18 of the slider 17 are maintained.

By adopting the above configuration, FIG.
The state shown in FIG. 4 (b) can be freely shifted from the horizontal state to the flip-up state shown in FIG. 4 (c). FIG.
In the horizontal maintenance state shown in (a), the belt conveyor can be operated in a stable state. In the flipped state shown in FIG. 4 (c), the tension of the wound conveyor belt is loosened. Alternatively, the conveyor belt can be attached and detached with the auxiliary frame removed.

As described above, the conveyor frame 1 is maintained in a state where one side shown in FIG. 3 is lifted so that the conveyor belt can be detached. FIG. 5 is an enlarged view of an example of the stand fitting 5 for maintaining one side of the conveyor frame in a raised state.

The stand fitting 5 shown in FIGS. 2, 3 and 5
Is composed of an arm 21 pivotally supported on a mounting plate 20 of the conveyor frame 1 and a receiving plate 22 provided on the leg frame 2.
The receiving plate 22 is provided with an engagement hole 23 of a special key shape as shown in the figure, and a guide roller 24 provided on the arm 21 is engaged with the engagement hole 23, thereby the conveyor frame shown in FIG. And the conveyor frame shown in FIG. 3 raised automatically.

The specific shape of the engagement hole 23 formed in the leg frame 2 is a substantially key shape of the vertical side 23a and the horizontal side 23b, and the shape is reduced as the horizontal side 23b is separated from the vertical side 23a. The vertical side 23a and the horizontal side 23b are both wider than the diameter of the guide roller 24 with which they are engaged. In particular, the confluence of the vertical side 23a and the horizontal side 23b is formed wide. Further, the mounting position of the arm 21 with respect to the mounting plate 20 is set to be above a position slightly in the horizontal side 23b from directly above the vertical side 23a. As a result, it is possible to automatically lock the conveyor frame in a state where one side is lifted, and release the locked state.

When one side of the conveyor frame is closed, the guide roller 24 is at the position (A) in FIG. As one side of the conveyor frame is lifted, the guide roller 24 moves along the side of the vertical side 23a, and reaches the side 23b due to the weight of the arm 21 and the guide roller 24 when reaching the side 23b. When the conveyor frame lifted by hand is lowered in this state, the guide roller 24 reaches the position (C) at the tip of the lateral side 23b, and cannot move any further. That is, one side of the conveyor frame is maintained in a floating state. In this state, the conveyor belt can be freely replaced.

To close one side of the conveyor frame 1 that has been opened, one side of the conveyor frame is further lifted. Then, the guide roller 24 moves to the position (C) above the vertical side 23a along the upper edge of the horizontal side 23b. When the support of one side of the conveyor frame 1 which has been lifted in this state is lowered, the guide roller 24 is lowered along the vertical side 23a and the open side of the conveyor frame is closed.

A driving roller 10 for driving the conveyor belt 9 mounted on the conveyor frame 1 is mounted on a driving roller side plate 11 provided at the center of the conveyor frame in the drawing. The drive roller 10 is rotationally driven by a motor 25 fixed outside the drive roller side plate 11. The drive roller side plate 11 is equipped with a snap roller 12 and a tension roller 13 to complete the belt conveyor.
If the 12 and the tension roller 13 can be freely attached to and detached from the inner surface of the drive roller side plate 11, it is convenient for attaching and detaching and replacing the conveyor belt.

The snap roller 12 that winds the conveyor belt at a fixed position includes a shaft 12a of the snap roller 12.
Is received by a receiving seat 26 fixed to the inner surface of the drive roller side plate 11. The seat 26 is a plate material having a constant thickness, and is formed by forming a U-shaped cut 26a from the upper side. With this structure, the snap roller 12 can be mounted simply by dropping it from above.

On the other hand, the tension roller 13 that adjusts the tension of the conveyor belt by winding and moving the conveyor belt 9 in the horizontal direction can move along the guide member 27 provided on the inner surface of the driving roller side plate 11. Like that. That is, on the inner surface of the drive roller side plate 11,
The lower guide 27a and the upper guide 27b are fixed in the horizontal direction at a fixed interval, while the shaft 13a of the tension roller is supported therebetween, and the tension bolt 28 presses the shaft 13a of the tension roller inward to adjust the tension. be able to.

As described above, since the snap roller 12 and the tension roller 13 are both attached to and detached from the inner surface of the drive roller side plate 11 so that assembly can be completed easily, the snap roller 12 and the tension roller 13 The conveyor belt can be attached to and detached from the conveyor frame in the detached state, and can be attached later.

As described above, in the belt conveyor according to the present invention, an operation of lifting one side of the leg frame 2 to maintain the open state, an operation of flipping the auxiliary frame, or a snap roller or a tension roller The operation of attaching and detaching the conveyor belt can be carried out by one person in sequence, so that it is possible to replace the conveyor belt, which was conventionally difficult, by itself. In addition, the auxiliary frame 7 is provided with a set bolt (shown by a dotted line in FIG. 4) that protrudes and retracts toward the cut 7b so that the meandering of the conveyor belt can be adjusted.

[0025]

According to the belt conveyor of the present invention, the auxiliary frame on which the end roller is mounted can be flipped up and turned to easily attach and detach the conveyor belt. A rotation operation can be performed, the auxiliary frame can be fixed in a horizontal state, and stable operation as a conveyor can be performed.

According to the second aspect of the present invention, one side of the conveyor frame can be lifted to detach and attach the belt, and the operation of maintaining the lifted state can be performed alone. In addition, the conveyor frame in the operating state is securely supported by the leg frame, and is more stable in operation than the conventional belt conveyor of this type which has a cantilever type and an unstable structure, that is, strength, transport load, transport A belt conveyor with excellent speed can be realized.

According to the third aspect of the present invention, when attaching and detaching the conveyor belt, the attaching and detaching of the snap roller and the tension roller can be performed by one person as an operation only from the inner surface of the driving roller side plate.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a belt conveyor without a conveyor belt attached thereto,

FIG. 2 is an enlarged cross-sectional view of a belt conveyor in an operating state, which is longitudinally cut in a width direction;

FIG. 3 is an enlarged cross-sectional view of a belt conveyor in a state in which a conveyor belt is attached and detached, which is longitudinally cut in a width direction;

FIG. 4 is a side view of an auxiliary frame showing a procedure of a flip-up operation;

FIG. 5 is a front view showing a specific example of a stand fitting;

FIG. 6 is a cross-sectional view in the flow direction of the conveyor showing a driving roller portion;

FIG. 7 is a longitudinal sectional view showing a mounting portion of a snap roller,

FIG. 8 is a front view showing only a mounting portion of a tension roller.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conveyor frame, 1a ... Side plate, 2 ... Leg frame, 3 ... Hinge bracket, 4 ... Locking bracket, 5 ... Stand bracket, 6 ... End roller, 6a ... Shaft, 7 ... Auxiliary frame, 7a ... Side plate, 7b ... Notch, 8 ... Stopper, 9 ... Conveyor belt, 10 ... Drive roller, 11 ...
Drive roller side plate, 12: snap roller, 13: tension roller, 12a, 13a: shaft, 14: support shaft, 15: cut, 16: locking part, 17: slider, 18: locking claw, 19: mounting hole, 20 mounting plate, 21 arm, 22 receiving plate, 23 engaging hole, 24 guide roller, 25 motor, 26 receiving seat, 26a cutting, 27
… Guide member, 27a… Lower guide, 27b… Upper guide,
28… Tension bolt.

Claims (3)

[Claims] The present invention comprises a long conveyor frame for winding a conveyor belt and a leg frame for supporting the conveyor frame, wherein the conveyor frame releases connection with the leg frame on at least one side. At least one end roller arranged at both ends of the conveyor frame is attached to the auxiliary frame, and the auxiliary frame is detachably attached to the conveyor frame, or is flipped up and down so that the conveyor belt can be rotated from the side of the conveyor frame. In a detachable belt conveyor, the left and right side plates of the auxiliary frame with the end roller attached to the tip are pivotally supported by the side plates of the conveyor frame and can be flipped up and rotated, and a part of the auxiliary frame at a position where the auxiliary frame is horizontal Abuts against it to prevent downward rotation. A lifting prevention means that protrudes from the side surface of the transfer frame and engages with a lower side of the auxiliary frame side plate, which is in contact with the stopper and is prevented from rotating downward, to prevent the auxiliary frame from rotating upward. A belt conveyor provided on the side of a conveyor frame. 2. A conveyer belt comprising a long conveyor frame around which a conveyor belt is wound, and a leg frame supporting the conveyor frame, wherein the conveyor frame releases connection with the leg frame on at least one side. At least one end roller arranged at both ends of the conveyor frame is attached to the auxiliary frame, and the auxiliary frame is detachably attached to the conveyor frame, or is flipped up and down so that the conveyor belt can be rotated from the side of the conveyor frame. In a removable belt conveyor, one side of the conveyor frame is rotatably attached to the leg frame with hinges, and one side of the conveyor frame is detachable from the leg frame with locking brackets. And one side of the conveyor frame between the conveyor frame and the leg frame Belt conveyor, characterized in that a stand bracket for holding the state lifted constant dimensions. 3. A drive roller side plate is vertically suspended on both left and right side surfaces of a conveyor frame. A drive roller is mounted on the drive roller side plate, and a snap roller and a tension roller for winding a conveyor belt are provided on the inner surface of the drive roller side plate. 3. The belt conveyor according to claim 1, wherein the belt conveyor is detachably mounted on the locking means formed in the belt conveyor.