JPH11157619A - Belt conveyor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt conveyor device, capable of preventing a conveyor belt wound on a belt stock in a rotationally movable manner from slipping due to meandering, elongation or looseness resulting from rotational movement. SOLUTION: A driving roller 20a and a tail roller are rotatably provided at the right and left ends of a belt stock 10, a gear part 23 is formed integrally with or to be integral with at least driving roller 20a, a protrusion line 31 engaged with the gear part 23 formed on the driving roller 20a is protruded in the longitudinal direction on the back of a belt conveyor 30 and the endless conveyor belt 30 is wound between the driving roller 20a and the tail roller to be rotationally moved by the engagement of the gear part 23 with the protrusion line 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt in which a rotatable roller provided at the left and right ends of a belt support and a conveyor belt wound between the rollers are rotated by a meshing force of a gear. It relates to a conveyor device.

[0002]

2. Description of the Related Art Conventionally, this type of belt conveyor device has
A tail roller or a drive roller connected to a drive motor is rotatably mounted on a belt support base formed in a long shape in the left-right direction, and a conveyer belt formed endlessly by connecting both ends thereof. One that is wound in tension using tension and is horizontally rotated by driving a motor is used.

[0003]

In this type of belt conveyor device, in the rotating state, the conveyor belt is moved in one of the width directions depending on a change in the position of feeding the conveyed article to the conveyor belt or its weight. A so-called meandering phenomenon is likely to occur, and therefore, the winding state of the conveyor belt is checked each time by a meandering adjustment device provided near the roller on which the conveyor belt is pressed in a press-contact manner, and the roller is adjusted. I was Further, since the conveyor belt is wound in tension between these rollers by using the tension, a slight extension or loosening of the conveyor belt easily causes a slip phenomenon on the rollers. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a belt conveyor device which can prevent a slip phenomenon caused by meandering, stretching, or loosening of a conveyor belt, which is likely to occur during rotation. It is intended for.

[0005]

In order to achieve the above object, a belt conveyor device according to the present invention is provided so that rollers are rotatably provided at left and right ends of a belt support table, and at least one of the rollers has a gear portion. An endless conveyor belt formed integrally or integrally with the back side of the conveyor belt and having a row of ridges meshed with a gear portion formed on the roller in the length direction is provided between the rollers. It is characterized in that it is wound and rotated by meshing between the gear portion and the row of protrusions.

At least one of the rollers has an intermediate roller member having a gear portion between two roller members, and a gear sheet member having a gear portion protruding substantially at the center of the outer peripheral surface of the roller member. Is attached.

[0007] Further, a gap or a recess through which a row of conveyor belts meshing with the gear section is passed without pressing against a roller mounted on the opposite side of the belt support table on which a roller having a gear section is mounted on one side. And at least one of the rollers mounted on the left and right ends of the belt support is pivotally mounted on a vertically rotatable bracket mounted on the tip of the belt support. It is characterized by the following.

[0008]

According to the belt conveyor device of the first aspect, the gear portion is integrated with or integrated with at least one of the rotatable rollers provided at the left and right ends of the belt support. The endless conveyor belt wound around this roller is formed with a row of ridges meshing with a gear portion formed on the roller in the length direction thereof, so that the conveyor belt is wound. In the driving state, the conveyor belt is rotated by the engagement of the gear portion and the ridges, thereby causing the conveyor belt to be easily offset in the width direction, that is, a meandering phenomenon, and the conveyor belt slip caused by the extension or loosening of the conveyor belt. The phenomenon is prevented, and smooth and stable rotation is always obtained.

Further, according to the belt conveyor device of the second and third aspects, a roller having a standard width gear portion at the center or an appropriate position thereof and a row of ridges corresponding to the gear portion are provided on the back surface. By using a conveyor belt, rollers with different diameters and conveyor belts with different widths are selected according to the weight and shape of the object to be conveyed. An inexpensive conveyor device utilizing the meshing force can be obtained without using a specially provided roller or conveyor belt provided with rows.

Further, according to the belt conveyor device of the present invention, a gap or a concave portion is formed in a roller having no belt support or a gear portion, so that the roller is formed on the back side of the conveyed belt. The belt conveyor device according to claim 5, wherein the belt row is rotated without pressing, so that the belt support or the roller is not pressed against the row, thereby preventing deformation or inclination. According to the above, by mounting a bracket to which at least one of the rollers is mounted so as to be rotatable in the vertical direction, the conveyor belt can be loosened and stopped in a state wound around the rollers,
Provided for removal.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a belt conveyor device according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic diagram showing a side view of the belt conveyor device, FIG. 2 is a schematic diagram showing a main part on the front side also partially cut away, and FIG. It is a schematic diagram showing a part.

As shown in FIG. 1, a belt conveyor device according to this embodiment has a belt support base 10 formed in an elongated shape in the left-right direction, and is rotatably mounted on the left and right end sides of the belt support base 10, respectively. Rollers 20, 20
An endless conveyor belt 30 wound around the rollers 20 and 20 in a tension state, and a leg 50 for holding the belt support 10.

The belt support 10 is shown in FIGS.
As shown in FIG.
And an outer wall 12b which is longer than the inner wall 12a.
A support member 13 made of a metal plate made of stainless steel or the like, which is suspended, is arranged in parallel with a gap 14 formed between its inner side walls 12a, 12a, and a cross section provided at an appropriate interval on the back side thereof It is connected and fixed by a substantially channel-shaped mounting piece 15 and is integrally formed in an elongated shape in the left-right direction. The support member 13 has a lower end of the outer wall 12b with an inwardly bent edge 18 and an open end at the joint with the mounting piece 15, so that the connecting portion between the support member 13 and the mounting piece 15 can be formed. Various impurities can be prevented from invading and various germs can be prevented from adhering, and the vicinity can be easily cleaned.

As shown in FIGS. 1 and 2, a roller 20 rotatably mounted on both ends of the belt support base 10 has a conveyor belt 30 directly connected to a motor unit 60 at one end thereof. The driving roller 20a for rotating is
At the opposite ends, rotatable tail rollers 20b for reversing the conveyor belt 30 in a rotating manner are respectively mounted.

As shown in FIG. 8, the conveyor belt 30 is made of a synthetic resin body or a rubber-like body in a flat plate shape, and its back side has a ridge row 31 with its front and rear ends left in the width direction. Are continuously provided in the length direction. As shown in FIGS. 1 and 6, the conveyor belt 30 is wound around the drive roller 20a and the tail roller 20b by connecting the edges thereof so as to be endless in the longitudinal direction. The row 31 is rotated by meshing with the gear portion 22 of the drive roller 20a. In this manner, the ridges 31
When the conveyor belt 30 is rotated, a gap 14 formed between the support members 13
The ridge row 31 is located at the top of the support member 13 so that the ridge row 31 is not in direct contact with the top plate 11 of the support member 13. Is prevented from occurring.

The drive roller 20a provided on one side of the belt support base 10 may form a gear portion 22 over the entire outer peripheral surface, but as shown in FIG.
It comprises two cylindrical roller members 21 and 21 made of a hard synthetic resin material such as stainless steel or engineering plastic, and an intermediate roller member 23 having a gear portion 22 of a standard width. The insertion terminals 24, 24 protruding from the roller member 21 are fitted into connection holes 25 formed in the roller member 21 and connected and fixed by screws or the like.
The rotor 27 is inserted through an insertion hole 26 formed in the center of the bracket 3 and is rotatably mounted on the bracket 16a.

The drive roller 20 having the gear portion 22
In the case of a, a plurality of intermediate roller members 23 having a standard width are connected and used in accordance with the shape of the belt conveyor that changes depending on the purpose of use, or an intermediate roller member 23 having a different width of the gear portion 23 may be used. It is possible, and a driving roller 20a of a gear portion having a required width can be obtained by interposing a roller auxiliary member between two or more intermediate roller members 23 (not shown).

The driving roller 20a thus formed
As shown in FIG. 4, in a bracket 16 a attached to one end of the belt support base 10, one end of a rotor 27 through which the roller member 21 and the intermediate roller member 23 are inserted is connected to a motor via one bracket 16 a. The other end of the bracket 1 is directly connected to the
The gear portion 22 is attached to the shaft 6a so as to be positioned on an extension of a gap 14 formed between the support members 13, 13. The mounting position of the drive roller 20a is appropriately adjusted by adjusting the bracket 16a on the opposite side of the motor unit 60 with the adjustment fitting 17. The outer peripheral surface of the roller member 21 and the intermediate roller member 2
The upper end surface of the third gear portion 22 is desirably formed on the same surface so that the conveyor belt 30 can rotate smoothly.

Driving roller 20a forming gear portion 22
As shown in FIG. 9, a concave portion 29 having an appropriate width is formed at the center of the cylindrical roller member 21 except for the combination of the two roller members 21 and 21 and the intermediate roller member 23 having the gear portion 23. In addition, a gear sheet member 28 having the gear portion 22 protruded and attached to the concave portion 29 can be used.
For example, it is also possible to use a part of the conveyor belt 30 having the ridges 31 to adhere to the outer surface of the intermediate roller member and connect and fix it between the two roller members (not shown).

As shown in FIG. 5, a tail roller 20b pivotally mounted on the opposite end of the drive roller 20a which is pivotally mounted on one of the left and right ends of the belt support table 10, has a conveyor belt 30 substantially at its center. A concave portion 32 having the same width as that of the ridge row 31 is formed, and is rotatably mounted on a bracket 16b provided on both ends of the belt support base 10 so as to be rotatable in the vertical direction.

The roller 20 provided on the belt support 10 is provided at an intermediate position between the belt support 10 and the drive roller 20a and the tail roller 20b mounted on the opposite end of the drive roller 20a. Various rollers 20 such as a support roller or a snap roller are installed in the portion, and a concave portion having the same width as the ridge row 31 of the conveyor belt 30 is formed in the corresponding portion regardless of where the rollers 20 are installed. Or roller 2
It is desirable to divide the zeros so as to form a gap so that the ridges 31 of the conveyor belt 30 do not come into direct contact.

The bracket 16b on which the tail roller 20b is pivotally mounted rotates the conveyor belt 30 wound around in a tensioned manner upward to relax the belt 16b.
a, 20b can be easily attached and detached,
As shown in FIG. 10, the upper end of the base side is axially attached to the belt support base 10 by a fastener 41 such as a pin or a bolt, and in the horizontal mounting state, the axial attachment point is the tail roller 20 b. Is located above the axis 42, and
The lower end surface is locked by a stopper 43 protruding from the belt support base 10, and is supported substantially horizontally without being rotated below the belt support base 10. Therefore, the bracket 16b is supported horizontally in a state where the bracket 16b and the belt support base 10 are horizontally supported, and the bracket 16b is lifted up in a state where the conveyor belt 30 is wound around the tail roller 20b in a tensioned state, and the tensioned state is released to relax. When the conveyor belt 30 is driven, a load is applied downward and is supported by the stopper 43, so that the bracket 16b rotates the conveyor belt 30. During the movement, it is possible to prevent the splash from rising upward or from hanging downward.

Further, on one side of the bracket 16b, as shown in FIG. 5 and FIG.
The bracket 44 prevents deformation of the bracket 16b, adjusts the position of the tail roller 20b on the shaft, and adjusts the meandering state of the conveyor belt 30.

Further, as shown in FIGS. 1 and 3, the leg 50 holding the belt support 1 is composed of a plurality of vertical bars 52 and horizontal bars 53 each having a fixing bracket 51 at the lower end. On the side where the conveyor belt 30 is attached and detached, a rotatable connecting piece 5 is attached to the upper end of the vertical rail 52.
When the conveyor belt 30 is used, it is locked to the belt support base 10 when the conveyor belt 30 is used, the belt support base 10 is held as a part of the vertical rail 52, and when the conveyor belt 30 is detached, the belt The space between the belt support 10 and the legs 50 is formed by releasing the engagement with the support 10 and the conveyor belt 30 can be easily attached and detached through the space.

[0025]

As described above, according to the belt conveyor apparatus of the present invention, at least one of the rotatable rollers provided on the left and right ends of the belt support is formed such that the gear portion is formed integrally or integrally. At the same time, on the back side of the conveyor belt wound around this roller, a row of ridges meshed with a gear portion formed on the roller is provided so as to protrude in the length direction, and the conveyor belt is wound around the roller. It is rotated by meshing between the gear portion and the ridge row, and prevents sliding in the width direction, which is likely to occur at the time of rotation, i.e., meandering phenomenon, and during rotation due to extension and bending of the conveyor belt. By preventing the slip phenomenon, smooth and stable rotation can always be obtained.

Further, a specially designed roller or conveyor provided with a gear portion or a row of protrusions over the entire surface in the width direction in accordance with the size or shape of the roller or conveyor belt depending on the conveyed material used in the belt conveyor device. Without manufacturing a belt, a roller provided with a standard gear portion in the center and a conveyor belt provided with a row of ridges on the back surface are used, so that a conveyor device utilizing the meshing force can be manufactured at low cost.

[0027] At least one of the brackets provided with rollers provided at both ends of the belt support is installed rotatably in the vertical direction, so that the conveyor belt is relaxed while being wound between the rollers. And can be easily detached from the roller or worn.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a side state of a belt conveyor device according to the present invention.

FIG. 2 is a schematic front view of the belt conveyor device, which is also partially cut away.

FIG. 3 is a schematic sectional view showing a state in which a belt conveyor is mounted on a belt support base.

FIG. 4 is a schematic plan view of a main part of the belt conveyor device on which a drive roller is installed, which is partially cut away in a planar state.

FIG. 5 is a schematic plan view of a main part of the belt conveyor device on which a tail roller is installed, which is partially cut away in a planar state.

FIG. 6 is a schematic perspective view showing a meshing state of a driving roller and a conveyor belt, partially cut away, in a perspective state;

FIG. 7 is an exploded perspective view illustrating an example of a driving roller.

FIGS. 8A and 8B are schematic views showing a conveyor belt in which protruding rows are protruded, wherein FIG. 8A shows a back state, and FIG. 8B shows a cross-sectional state.

FIG. 9 is a perspective view showing an exploded state of a driving roller for attaching a gear sheet member to a roll member.

FIG. 10 is a schematic diagram of a partial side view showing a rotation mode of a bracket on which a tail roller is pivotally mounted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Belt support stand 11 Top plate 13 Support member 14 Gap 15 Mounting piece 16a, 16b Bracket 17 Adjustment fitting 20 Roller 20a Drive roller 20b Tail roller 21 Roller member 22 Gear part 23 Intermediate roller member 28 Gear seat member 30 Conveyor belt 31 Protrusion Row 32 Depressed portion of tail roller 20b 44 Metal fitting 50 Leg 60 Motor part

Claims (5)

[Claims] 1. A roller is rotatably provided on each of left and right ends of a belt support base, and a gear portion is formed integrally or integrally with at least one of the rollers, and the rollers are formed on the back surface of the conveyor belt. An endless conveyor belt in which a row of projections meshed with the gear section is provided in the longitudinal direction is wound around rollers, and is rotated by meshing the gear section with the row of projections. Belt conveyor device. 2. The belt conveyor device according to claim 1, wherein at least one of the rollers has an intermediate roller member having a gear portion between the two roller members. 3. The belt conveyor device according to claim 1, wherein at least one of the rollers is formed by attaching a gear sheet member having a gear portion protruding substantially at the center of the outer peripheral surface of the roller member. 4. A roller mounted on the opposite side of a belt support having a roller formed with a gear portion mounted on one of the rollers,
4. The belt conveyor device according to claim 1, wherein a gap or a concave portion is formed through which a row of ridges of the conveyor belt meshing with the gear portion is passed. 5. The apparatus according to claim 1, wherein at least one of the rollers provided at the left and right ends of the belt support is pivotally mounted on a vertically rotatable bracket mounted on the belt support. 5. The belt conveyor device according to 2, 3, or 4.