JP2948733B2 - Conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor for transferring articles to, for example, a weight sorter or a metal detector.

[0002]

2. Description of the Related Art As a conveyor for conveying articles,
There is Japanese Utility Model Application No. 5-37732 filed by the same inventor and applicant as the present application. The conveyor of the conveyor is integrally formed by an underlay plate, a drive roller support plate, a driven roller support plate, a drive roller, a driven roller, and a transfer belt. A guide groove is provided on the outer surface of the drive roller support plate to receive a guide pin projecting from the side plate from below. The positioning pins protruding from the side plate are in contact with and engaged with the cutouts of the drive roller support plate to determine the position of the transport unit on the drive roller side with respect to the side plate.

[0003] Further, on the driven roller support plate side, there are provided fixtures for hooking and fixing hooks respectively attached to the side plates. Further, similarly to the drive roller support plate side, a positioning pin protrudes from the side plate, and abuts and engages with the notch portion of the driven roller support plate to determine the position of the transport unit on the drive roller side.

[0004] The underlay plate is integrally screwed to the upper end surfaces of the drive roller support plate and the driven roller support plate.

[0005]

However, in the conventional conveyor, when the conveyor belt or other parts are replaced, or when the front and back surfaces of the conveyor belt, the driving roller, the driven roller, and the like are cleaned, the conveying unit is not used. There is a disadvantage that it takes time to disassemble because it is integrated.

In other words, in order to disassemble the transport section, the locked state of the fixture and the hook provided on the driven roller side is released. Pull up the driven roller side of the transport unit upward. At this time, the drive roller side of the transport unit rotates downward with the guide pin of the side plate as a fulcrum, and the drive belt hung between the drive roller and the drive motor is loosened. Remove the side. The transport section is pulled up slightly obliquely in the direction in which the guide pins are pulled out of the guide grooves, and the entire transport section is taken out. Thereafter, the transport belt is removed, and the drive roller and the driven roller are removed from the drive roller support plate and the driven roller support plate. A step of removing the set screw attaching the underlay plate and separating the underlay plate from the drive roller support plate and the driven roller support plate was required.

As described above, the entire transport section must be taken out, and the handling is troublesome. In particular, when the length of the conveyor is long, the weight is heavy, and it takes more time and effort to pull out the conveyor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to provide a conveyor which can easily disassemble each component in a short time at the time of component replacement and cleaning.

[0009]

In order to achieve the above object, the conveyor according to the present invention has a gantry (1) on which a driving roller (5) and a driven roller (1) are mounted.
3), a conveyor belt (16) for conveying articles between the driving roller and the driven roller is provided, and a motor (9) for driving the driving roller is provided. A drive belt (11) is hung between them. The first roller support plate (2a) is erected on one side of the gantry, and is opened toward the upper end of the roller support plate to support one shaft (6a) of the drive roller. A notch (4) is formed in the hole. The second roller support plate (2b) is erected on the other side of the gantry so as to face the first roller support plate and supports the other shaft (6b) of the drive roller. A notch (4) is formed to open toward the upper end of the roller support plate. At least one of the roller support plates is formed with a notch inclined portion (4a) in a direction to loosen the tension of the drive belt, which is continuous with the notch for supporting the shaft of the drive roller, and the shaft of the drive roller is inclined with the notch. A lever (23) for regulating the movement so as not to fall into the portion is rotatably supported on the inner surface of the roller support plate, and a lock mechanism (26) for locking the rotation of the lever is provided. Locking members (7) for locking the shaft of the drive roller supported by the notch are provided on the outer plate of the roller support plate .

According to a second aspect of the present invention, there is provided a gantry (1), on which a driving roller (5) and a driven roller (13) are arranged, and articles are conveyed between the driving roller and the driven roller. A motor (9) for driving the drive belt and a transport belt (16) is provided, and a drive belt (11) is hung between the motor and the drive roller. The first roller support plate (2a) is erected on one side of the gantry, and is opened toward the upper end of the roller support plate to support one shaft (6a) of the drive roller. A notch (4) is formed in the hole. The second roller support plate (2b)
It is erected on the other side of the gantry so as to face the first roller support plate, and is opened toward the upper end of the roller support plate to support the other shaft (6b) of the drive roller. A notch (4) is formed. At least one of the roller support plates is formed with a notch inclined portion (4a) in a direction to loosen the tension of the drive belt, which is continuous with the notch for supporting the shaft of the drive roller, and the shaft of the drive roller is inclined with the notch. A lever (23) for restricting the movement of the drive roller so as not to fall into the portion and preventing the shaft of the drive roller from moving toward the upper end of the roller support plate is rotatably supported on the inner surface of the roller support plate. And a lock mechanism (26) for locking the rotation of the lever.

[0011]

In the conveyor according to the present invention, the articles are transported along the surface of the receiving plate 17 by the endless transport belt 16 stretched between the driving roller 5 and the driven roller 13. The transport belt 16 is configured to drive the driving belt 1
1 is connected to and driven by the motor 9. When disassembling the conveyor, first, when the lock pin 26 that locks the lever 23 is released and the lever 23 is rotated,
The shaft 6 of the driving roller 5 falls into the notch inclined portion 4 a of the bearing notch 4, whereby the driving belt 11 hung between the driving roller 5 and the motor 9 is loosened and can be removed from the motor pulley 10. Provided on the drive roller support plate 2
The distance between the notch end face 4b and the notch end face 4c of the notch 4
The shaft 6 is notched because it is larger than the diameter of
When in contact with the end face 4b, tension is applied to the transport belt 16.
Shaft 6 is in contact with the notch end face 4c.
The conveyor belt 16 is loose
State. Therefore, the shaft 6 of the driving roller 5 is
c can be lifted along with
The driving roller 5 is pulled sideways from between the
Exit. Since the transport belt 16 is in a loose state, the driven roller 13 and the receiving plate 17 can be easily removed.

[0012]

FIG. 1 is a side view showing an outline of a conveyor.
FIG. 2 is a plan view. As shown in FIGS. 1 and 2, the drive roller support plates 2 a and 2 b are attached to one end of the upper portion of the gantry 1, and the driven roller support plates 3 a and 3 b
Is mounted opposite to the other end of the upper part of. A substantially U-shaped bearing notch 4 opened toward the upper end is formed in the upper portion on the outer end side of the drive roller support plates 2a and 2b so as to engage and support the shaft 6 of the drive roller 5. . Locking device 7
(For example, catch clips and fasteners) are fixed to the drive roller support plates 2a and 2b near the bearing notch 4, and positioned so that the shaft 6 of the drive roller 5 does not move in the opening direction of the bearing notch 4. keeping. 3 and 4
As shown in FIG.
The shape of the operating portion 23a can be made substantially L-shaped so as to be positioned and held so as not to move in the opening direction of the bearing notch 4. A roller pulley 8 is formed on the drive roller support plate 2b side of the drive roller 5, and a drive belt 11 is hung between the drive roller 5 and a motor pulley 10 of a motor 9 fixed to the drive roller support plate 2b. The information is transmitted to the driving roller 5.

The driven roller support plates 3a and 3b are provided on the outer end side upper portions so as to engage and support the shaft 14 of the driven roller 13 so as to engage with the driven roller support plates 3a and 3b.
Bearing notch 12 which is substantially U-shaped and opened toward the outer end
Are formed. The tension adjusting mechanism 15 is composed of a screw and a nut, and is attached to the driven roller support plates 3a and 3b near the bearing notch 12 so as to support the force applied to the shaft 14 of the driven roller 13 from the outer end. By turning the shaft, the shaft 14 of the driven roller 13 is moved in the horizontal direction and positioned and supported.

An endless transport belt 16 is stretched between the driving roller 5 and the driven roller 13. The upper half of the conveyor belt 16 is in contact with the upper surface of the receiving plate 17, and the lower half is below the auxiliary rollers 18, 19 supported by the driving roller supporting plates 2a, 2b and the driven roller supporting plates 3a, 3b. Abuts substantially on the lower surface of the receiving plate 17. The transport belt 16 is moved by the rotation of the drive roller 5, and transports the article. The tension adjustment of the transport belt 16 is performed by first positioning and supporting the drive roller 5 on the drive roller support plate 2 and then moving the driven roller 13 by the tension adjustment mechanism 15 of the driven roller support plate 3.

The receiving plate 17 is provided with a guide hole 21 for fitting into a guide pin 20 mounted on the upper surface of the driving roller supporting plate 2 and the driven roller supporting plate 3.
Is positioned and mounted on the upper surface of the driven roller support plate 3.

Next, the operation of removing the driving roller 5, the driven roller 13, the transport belt 16 and the receiving plate 17 will be described. 3 and 4 are cross-sectional views taken along line AA of FIG. FIG. 3 shows the bearing notch 4 of the drive roller support plate 2b in detail, and shows a state where the drive roller 5 is supported at a normal position. The shape of the bearing notch 4 supporting the shaft 6b of the drive roller 5 is such that a substantially U-shaped notch is opened upward, and further, the pulley 10 of the motor 9 and the drive roller A substantially U-shaped notched inclined portion 4a is formed in a direction in which the drive belt 11 hung between the roller pulley 8 and the roller belt 5 is loosened. When the shaft 6b of the drive roller 5 is dropped into the bearing notch 4 ,
A notch inclined portion 4a is sandwiched between an operating portion 23a of a lever 23 rotatably supported by a rotating shaft 22 fixedly mounted on the driving roller support plate 2 and a notch end surface 4b of the bearing notch 4.
Has been prevented from falling. Of course, the shaft 6b
The L-shaped portion of the operating portion 23a of the lever 23 is prevented from moving upward, and is positioned and supported.

The handle portion 23b of the lever 23 is provided with a slide cutout 24 having a substantially linear shape.
The lock pin 26 is loosely fitted so as to communicate with the substantially L-shaped guide notch 25 provided at the position b. Lock pin 26
Has a retaining structure in which both ends form a flange. In FIG. 3, the lock pin 26 is located at the bottom of the slide notch 24 and the guide notch 25, and the lever 23 is
It is almost vertical and locked. Accordingly, the driving roller 5 does not move even if a force is applied from any direction, and is supported at a regular position.

As a mechanism for supporting the drive roller 5, as shown in FIGS. 9 and 10, it is also possible to support the drive roller 5 only with the lever 31. As a lock mechanism replacing the lock pin 26, there is a lock mechanism using a hook 32 and a leaf spring 33. The hook 32 is fixed to a leaf spring 33, and a screw 34 and a nut 3 are inserted into the hole formed in the roller support plate 2b.
Attach 5 The lever 31 comes into contact with the hanging member 32 and is restricted from moving so that the tension of the drive belt 11 and the transport belt 16 is not loosened. When the lock is released, the hook 32 can be moved in the direction of arrow D by the leaf spring 33.
Restrictions will be lifted.

FIG. 4 is a view in which the lever 23 is rotated. First, the lock pin 26 is moved along the slide notch 24 and the guide notch 25, and the lever 23 is turned in the direction of arrow B. Then, the shaft 6b of the drive roller 5 falls into the notch inclined portion 4a with the movement of the operating portion 23a of the lever 23. In this state, the position of the drive roller 5 moves in the direction in which the tension of the transport belt 16 is loosened, and the tension of the drive belt 11 also moves in the direction in which the tension is loosened.
The drive belt 11 can be easily removed from the motor pulley 10.

When the drive belt 11 comes off, the drive roller 5 is lifted, and the shaft 6 is taken out of the drive roller support plate 2 along the notch end face 4c . Installed on the drive roller support plate 2
Distance between cutout end face 4b and cutout end face 4c of cutout 4
Is cut out larger than the diameter of the shaft 6, so that the shaft
6 is in contact with the transport belt 16 when the
The tension is applied and the shaft 6 is notched
4c, the tension of the conveyor belt 16 is
It becomes loose. Therefore, the shaft 6 of the driving roller 5 is turned off.
Since it can be lifted along the cut end face 4c,
As a result, the drive roller 5 is moved sideways between the loose conveyor belts 16.
Pull out towards you. Further, if the receiving plate 17 is also lifted, it can be easily removed, and the driven roller 13 can
6 is loose, the passive roller support plate 3
Along the bearing notch 12 takes out the shaft 14 but can, can be withdrawn laterally from between the transport belt 16 in the same manner as the driving roller 5.

The cutout inclined portion 4a for locking the drive roller 5 and the lever 23 may be provided on one roller support plate or on both roller support plates.

FIG. 6 shows an embodiment in which the conveyor of the present invention is used for a metal detector. In particular, when used in a metal detector, the transport belt 16 is passed through the detection head 27 in order to detect the metal in the article while transporting the article by the detection head 27. For this reason, in the conventional integrated conveyor, attachment and detachment of the transport belt and the like are very troublesome.

In this embodiment, a support plate 28 is provided on the upper surface of the gantry 1 to receive the guide pins 20 in the same manner as the guide pins 20 mounted on the drive roller support plate 2 and the driven roller support plate 3. It is also attached to a plate support plate 28, and the receiving plate 17 is divided into three parts and placed on these support plates. In particular, when the length of the conveyor is long, the handling is inconvenient because the weight is heavy when the receiving plate 17 is formed as a single sheet, but the handling is easy when divided. Although the drive roller support plate 2 and the driven roller support plate 3 are separate bodies, it is also possible to form a single side plate integrally with the receiving plate support plate 28.

FIGS. 7 and 8 show another embodiment in which the receiving plate 17 is placed. In the above-described embodiment, the positioning of the receiving plate 17 is performed by the guide holes 21 and the guide pins 20, but a substantially L-shaped guide block 29 may be provided. Further, a substantially U-shaped guide plate 30 may be provided.

[0025]

As described above, the provision of the bearing cutout and the rotatable lever on the drive roller support plate facilitates the attachment and detachment of the drive roller, and the provision of the cutout inclined portion allows the drive roller to be mounted. You can move the position,
It is possible to easily change the tension between the transport belt and the drive belt. In addition, the provision of the lever lock mechanism having a simple structure allows the drive roller to be easily fixed, and the lock can be easily released. As a result, the driving roller, the driven roller, the transport belt, the driving belt, and the receiving plate can be separately removed from each other, and maintenance work such as replacement and cleaning can be performed more easily than an integrated structure. In addition, the attachment and detachment of the driving roller can be easily performed by providing the locking member.

[Brief description of the drawings]

FIG. 1 is a side view showing an outline of a conveyor.

FIG. 2 is a plan view showing an outline of a conveyor.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along the line AA of FIG. 2 showing the operation.

FIG. 5 is a perspective view showing an operation.

FIG. 6 is a perspective view showing another embodiment.

FIG. 7 is a perspective view showing another embodiment.

FIG. 8 is a perspective view showing another embodiment.

FIG. 9 is a side view showing another embodiment.

FIG. 10 is a sectional view taken along the line CC in FIG. 9;

DESCRIPTION OF SYMBOLS 1 ... gantry, 2 ... drive roller support plate, 3 ... driven roller support plate, 4 ... bearing notch, 4a ... notch inclined portion, 5 ... drive roller, 6 ... shaft, 7 ... locking member, 9 ... Motor, 11 ... Drive belt, 16 ... Conveyer belt, 23 ... Lever, 26 ... Lock pin

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65G 21/06 B65G 23/44

Claims (2)

(57) [Claims] A cradle (1), a driving roller (5), a driven roller (13), a conveying belt (16) hung between the driving roller and the driven roller for conveying an article; A motor (9) for driving a driving roller, and a driving belt (1) hung between the motor and the driving roller.
(1) a notch (4) that stands upright from the side of the gantry so as to face each other and supports a shaft (6) of the drive roller.
But with the formed roller support plates (2a, 2b) so as to open towards the upper end, at least one of the roller support plate, in the direction of loosening the tension of the drive belt contiguous with notch A lever (23) having a cutout inclined portion (4c) formed, rotatably supported by the inner surface of the roller support plate, and restricting movement of the drive roller shaft to the cutout inclined portion; A lock mechanism (26) for locking the rotation of the lever, the lock mechanism being fixed to the outer surface of the roller support plate , and locking the shaft of the drive roller supported by the notch. conveyors, characterized in that it comprises end stop (7). 2. A gantry (1), a driving roller (5), a driven roller (13), a conveying belt (16) hung between the driving roller and the driven roller, and conveying an article; A motor (9) for driving a driving roller, and a driving belt (1) hung between the motor and the driving roller.
(1) a notch (4) that stands upright from the side of the gantry so as to face each other and supports a shaft (6) of the drive roller.
But with the formed roller support plates (2a, 2b) so as to open towards the upper end, at least one of the roller support plate, in the direction of loosening the tension of the drive belt contiguous with notch It has a notch inclined portion (4c) formed, and is rotatably supported by the inner surface of the roller support plate so as to restrict the movement of the shaft of the drive roller to the notch inclined portion and to prevent the drive roller from moving . A conveyor comprising: a lever (23) whose shaft also restricts the movement of the roller support plate toward the upper end, and a lock mechanism (26) for locking the rotation of the lever.