JP3385564B2 - 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 structure of a conveyor in which an endless chain is provided with a large number of plates in a direction perpendicular to a conveying direction and the plates are conveyed by rotating the plates.

[0002]

2. Description of the Related Art Conventionally, in factories and facilities, it has been publicly known that a slat conveyor is used as a conveyor for inheriting an object to be conveyed from a plurality of tanks or the like and conveying it to a target device. The slat conveyor is provided with a number of plates on the endless chain in a direction perpendicular to the carrying direction, the endless chain with the plates is housed in a carrying case, and the endless chain is rotated to be surrounded by the case. It was arranged that an object to be conveyed be placed between the plates and conveyed.

[0003]

However, the conventional slat conveyor can convey only in a straight line direction, and when there is an obstacle in the middle of the conveyance direction or when it is desired to provide a space in the middle of the conveyance direction. However, it is necessary to combine a plurality of slat conveyors and to provide a joint section in the middle, which increases the number of conveyors and raises the cost. Also, if the slat conveyor is bent and arranged in a curved shape, the chain moves the shortest distance and the plate shifts from the traveling direction, so it cannot be reliably transported, or there is a gap between the plate and the case, leaving untransported. It was happening. Therefore, the present invention intends to provide a conveyor that can bend the conveyance direction in the horizontal direction without using a plurality of conveyors and to simplify the layout.

[0004]

The present invention uses the following means in order to solve the above problems. Claim
In Item 1, the chain 1 is placed in a substantially box-shaped carrying case 5.
7 is wound around the outer peripheral surface of the chain 17 at regular intervals and arranged in a direction perpendicular to the conveying direction, and a scraper guide 2 is provided on the front surface of the blade body 1. In the scraper guide 2, a scraper 16 having substantially the same length as the inner width of the transport case 5 is arranged so as to be slidable from side to side. In claim 2, in the conveyor according to claim 1, wherein, Ru der one provided a bent portion 1a bent in an arc shape to the left and right sides of the blade body 1.

[0005]

The problems and configurations to be solved by the present invention are as described above, and one embodiment of the present invention shown in the accompanying drawings will be described below. FIG. 1 is an overall plan view of the slat conveyor, FIG. 2 is an overall side view of the slat conveyor, FIG. 3 is a cross-sectional perspective view of the blade body and scraper of the present invention traveling in a curved case, and FIG. 6 is a plan sectional view showing the passing posture of the chain, FIG. 5 is a side view showing the connection between the blade body for inserting the scraper in the front part and the chain, FIG.
Is a plan view of a blade body that is slidable left and right with a scraper inserted, FIG. 7 is a front cross-sectional view showing a vertical pressing plate that guides the blade body in a curved case, and FIG. 8 is the same vertical pressing plate. FIG. 9 is a front cross-sectional view showing another embodiment of the above, and FIG. 9 is a block diagram showing a step of drying and storing the paddy.

The present invention will be described with reference to FIG. 9 for a grain drying and storage system in a country elevator applied to a slat conveyor. Grain (paddy) harvested at each farm is put into the cargo receiving conveyor 42 from the cargo receiving section 41 of the building, inherited to the conveyor 45 via the cargo receiving coarse sorter 43 and the elevator 44, and from the conveyor 45. Through the carry-in conveyor 46, the drying unit 47
To carry. In the drying section 47, the grains conveyed by the carry-in conveyor 46 are stored in each storage / drying bin 48.
.., and the normal temperature and constant humidity air generated by the normal temperature and constant humidity dryer 57 is pushed in to dry the grain to a predetermined water content. The dried paddy dried in the storage / drying bins 48, 48 ... Stores grains through the carry-out conveyor 49, the elevator, the connecting conveyor 50, and the carry-in conveyor 51.
The grain is stored in the silos 53, 53, ... The grain stored in the silos 53, 53 ... Is carried out to the adjusting section 55 equipped with a hulling machine, a rice milling machine, etc. through the discharge conveyor 54, and the product grain adjusted by the adjusting section 55. Configure the system to ship.

Further, a rotation valve 56 is provided at the carrying end of the carry-out conveyor 49, and the carry-out conveyor 49 is selectively connected to either the connecting conveyor 50 of the silo 53 or the elevator 44. By connecting the carry-out conveyor 49 and the connection conveyor 50 via the rotation valve 56, the dry grains in the bin 48 can be supplied to the silo 53. Further, by connecting the carry-out conveyor 44 to the elevator 44 via the rotation valve 56, a rotation operation of transferring the grain in the bin 48 to another bin 48 is performed to prevent uneven drying of the grain and the grain. It is configured to improve the efficiency of bottle use by consolidating grains.

Next, the plate was used as a scraper 16,
The overall structure in which the slat conveyor A of the present invention is applied to the carry-out conveyor 49 will be described with reference to FIGS. 1 and 2. The slat conveyor A includes a carrying case 5, a chain 17 housed in the carrying case 5, a supporting member for the chain 17, and a carrying member appropriately arranged on the chain 17, and the carrying case 5 is formed in a square pipe shape. The upper surface can be opened.

The transport case 5 has a divided structure, and includes a drive case portion 10 for accommodating and supporting a drive sprocket 14, a driven case portion 11 for accommodating and supporting a driven sprocket 15, and the driven case. The slat conveyor A can be configured by dividing into a linear transport case portion 12 and a curved curved case portion 13 which are connected to the portion 11 and the drive case portion 10. Then, between the driven case portion 11 and the drive case portion 10, the length of the slat conveyor A can be adjusted by increasing or decreasing the number of the transport case portions 12, and increasing or decreasing the curved case portion 13 or changing the curvature. Thus, the transport direction can be changed.

A support shaft having a drive sprocket 14 fixed thereto is pivotally supported at the front end of the drive case portion 10, and a support shaft having a driven sprocket 15 fixedly mounted at the rear end of the driven case portion 11 is pivotally supported. There is. A chain 17 is wound around the driven sprocket 15 and the drive sprocket 14, and the blades 1, 1, ... Are arranged on the outer peripheral surface of the chain 17 at regular intervals in the left-right direction (direction perpendicular to the carrying direction). I have set up.
The lower surface of the transfer case 5 is used as a transfer path K, and a discharge chute 18 is disposed on the lower surface of the end position of the transfer path K (the front end of the slat conveyor A). A chute (not shown) that conveys dried paddy dried by the storage / drying bin 48 is extended at the opening above the front end position of the conveying route K so that a conveyed product such as dried paddy can be put into the conveying route K. ing. Therefore, the drive sprocket 14 is rotated by the power machine arranged outside the drive sprocket 14 to drive the chain 17, and the blade bodies 1, 1, ... The sheet is moved from the rear side to the front side along and is conveyed, is discharged below the discharge chute 18, and is conveyed to the rotation valve 56.

The chain 17 has a structure as shown in FIGS.
As shown in FIG. 3, it comprises a horizontal rotating body 20, a vertical rotating body 19, and a pivot shaft 21 for supporting both, and the vertical rotating body 19 is provided with a fitting portion 19a having a "U" shape in a side view at a front portion thereof. A fitting portion 19b having a U-shape in plan view is formed in the rear portion. The horizontal rotating body 20 has a fitting portion 2 having a "U" shape in plan view at the front.
0b is provided to be fitted to the fitting portion 19b and horizontally supported by a pivot shaft 21, and a fitting portion 20a having a U-shape in a side view is provided at a rear portion of the fitting portion 19a. It is fitted and pivotally supported by a vertical pivot 21. Then, the bottom surface of the fitting portion 20a is widened to form the mounting surface 20c,
A plurality of screw holes are opened on the mounting surface 20c.

The blade body 1 is attached to the mounting surface 20c, and the blade body 1 is formed in a wide U-shape in plan view as shown in FIG. A bent portion 1a which is bent is formed, and an abutting portion 1b is further extended rearward from the bent portion 1a. Then, the fixing plate 4 is provided so as to project rearward from the center rear surface of the blade body 1,
In the screw hole 4 on the mounting surface 20c.
.. are opened, and the mounting surface 20c and the fixing plate 4 are fixed by using bolts and nuts. A shaft hole 4a for avoiding the pivot shaft 21 is opened at the center of the fixed plate 4 on the left and right, and the opening position of the shaft hole 4a is at the rear end of the bent portions 1a, 1a on the left and right sides of the blade body 1. Virtual line d that connects
The bent portion 1a is always in contact with the inner surface of the curved case portion 13 when the curved case portion 13 is opened to a rearward position and passes through the curved case portion 13 so that there is no conveyance leakage.

With this structure, the blade body 1
The fixing plate 4 of the chain 17 can be attached to the horizontal rotating body 20 of the chain 17, and the vertical rotating body 1 can be attached to the front and rear of the horizontal rotating body 20.
9 is pivotally supported using a pivot shaft 21, and the fitting portions 19a, 20
The chain 17 swings horizontally in the left-right direction, and the chain 17 can move along the shape inside the curved case portion 13. Further, the fitting portions 19b and 20b can be swung vertically and vertically, and can be rotated in the drive sprocket 14 and the driven sprocket 15.

The scraper guide 2 is fixed to every few blades 1, 1, ... Installed on the chain 17, and the scraper 16 is mounted. That is, the scraper guide 2 is fixed to the front part of the blade body 1, and the scraper guide 2 has a length of about half the width of the blade body 1 and is configured in a side view substantially gate shape, and the lower side is opened. The rear surface is fixed to the front surface of the blade body 1. Further, the scraper guide 2 is bent inward so that the lower end portions of the front and rear surfaces of the scraper guide 2 face each other to form receiving portions 2a. In the scraper guide 2, a sliding guide 3 fixed to the center upper end of a scraper 16 is fitted so as to be slidable from side to side. The sliding guide 3
Is a side view gate type and is sized to fit inside the scraper guide 2 so that it can slide, and as a length that does not come off from the scraper guide 2 even if it slides left and right in the transport case 5, It is designed to be slidable as shown by the two-dot chain line in 6. The scraper 16 is configured to have a length that substantially matches the inner width of the carrying case 5. Since the scraper 16 is in sliding contact with the lower surface and the wall surface of the carrying case 5, it is made of a plate-shaped urethane or the like having excellent abrasion resistance. Uses synthetic resin.

When the chain 17 is rotated by using the drive sprocket 14 and the driven sprocket 15 constructed as described above, the chain 17 is moved in the drive case portion 10, the driven case portion 11 and the linear transport case portion 12. Is linearly pulled and conveyed straight, but since the conveying direction is curved in the curved case portion 13, as shown in FIG. 4, the chain 17 is pulled inward and the center of the conveying path K in the width direction. It passes inside from the line c. Therefore, the blade body 1 also moves inward, and the contact portion 1b moves while contacting the inner wall surface. At this time, the scraper 16 inserted into the front portion of the blade body 1 moves inside the scraper guide 2. Slide outward. That is, since the left-right center of the blade body 1 is located inside the center line c, the left-right center of the scraper guide 2 also moves inside the center line c, and the scraper has a length substantially matching the width of the transport case 5. 16 cannot move to the center side together with the scraper guide 2, but slides outward along the scraper guide 2.

Further, the scraper 16 moving in the curved case portion 13 generates a force for lifting the outer end portion in a front view. That is, as shown in FIG. 7, since the chain 17 is positioned and supported above the scraper 16 and the blade body 1, when the chain 17 is pulled inward, it comes into contact with the inner wall surface 13a. The blade body 1 tries to rotate upward around the upper end of the abutting portion 1b, and a force is generated to lift the outer end portion of the blade body 1. However, this force is an action acting on the blade body 1 and the scraper 16 arranged on the chain 17 in the lower conveyance,
Similarly, the chain 17 that conveys back upward generates a force that rotates the blade body 1 and the scraper 16 downward.

Thus, the blade body 1 and the scraper 16 are
Since the conveyance leakage occurs when the end of the curved case portion 1 is lifted, in the present invention, as shown in FIG.
Push plates are arranged on the inner left and right wall surfaces of the unit 3. That is, the lower push plates 22 and 23 are arranged in parallel with the inner wall surface 13a and the outer wall surface 13b in alignment with the arc center of the curved case portion 13 in a plan view. A fixed arm 27, which is L-shaped in a front view, projects from an appropriate position on the upper side of the lower push plates 22 and 23, and the end portion of the fixed arm 27 is located on the inner wall surface 13a or the outer wall surface 1
It is fixed to 3b. The lower surfaces of the lower push plates 22 and 23 are
As shown in FIG. 3 and FIG.
Spaced approximately equal to the height of. Further, as shown in FIG. 7, the lower push plates 22 and 23 are provided on the upper portion of the curved case portion 13.
Upper push plates 28 and 29 are arranged in parallel with the upper push plates 28 and 29.
Below the plate 9, support plates 24 and 25 are arranged in an arc shape in a plan view, vertically symmetrical with the upper push plates 28 and 29. Furthermore, FIG.
As shown in FIG.
The support plates 26, which are linear in plan view and have the same height as 25 and the same position in the left-right width direction, are provided.

Then, by the lower push plates 22 and 23,
The scraper 16 and 16 are conveyed by the lower conveyance of the chain 17.
... is pressed so as not to rotate upward when passing through the curved case portion 13, and the lower surface of the scraper 16 is moved along the conveyance path K to prevent conveyance leakage. Further, on the upward return transport side of the chain 17, since the blade body 1 is placed on the support plates 26, 26 and transported to the rear end, the chain 17 can be transported without bending. Since the blade body 1 is passed between the upper push plates 28 and 29 and the support plates 24 and 25 in the curved case portion 13, the outer end of the blade body 1 is vertically moved by the short circuit of the chain 17. There is no rocking.

Further, as shown in FIG. 8, the lower pressing plates 22 'and 23', which are plate members having an arc shape, are attached to the curved case portion 13.
It can also be installed in. The lower push plates 22 'and 23'
Are two types of plates with different radii of curvature,
It is arranged in parallel with. Lower push plates 22 'and 23' are disposed between the lower surfaces of the push plates 22 'and 23' and the transport path K at positions substantially equal to the height of the blade body 1.
2'and 23 'are fixed by using fixed arms 27'27' .... The fixed arms 27 ', 27' ...
The inner wall surface 13a and the outer wall surface 13b are projected obliquely downward, the middle portion thereof is bent in the horizontal direction, and the left and right fixed arms 27 ', 27' are arranged so as to face each other. A push plate 22 'is fixed to the bent lower surface of the lower end portion. In addition, the upper push plates 28 and 29 and the support plate 2
Similarly, in 4 and 25, upper pushing plates 28 'and 29' and supporting plates 24 'and 25' which make the plate parallel to the transport path K can be provided. Therefore, the rotation of the blade body 1 passing through the curved case portion 13 described above is controlled by the lower push plates 22 'and 23' or
It is possible to stably guide using the flat surfaces of the upper push plates 28 'and 29' and the support plates 24 'and 25'.

[0020]

As constructed above, the following effects can be obtained. Since the scraper is slidably arranged with respect to the blade body as described in claim 1, even if the conveyance direction of the slat conveyor is bent to the left and right in the horizontal direction, the conveyance leakage is eliminated and the conveyed object can be reliably conveyed. Therefore, it is not necessary to combine other conveyors to change the conveying direction, and only one conveyor is required, and an extra driving machine, control unit, etc. are not required, and a low-cost facility can be constructed. Further, since it is possible to reduce the inheritance from the conveyor to the conveyor, it is possible to provide a high quality product without damaging the object to be conveyed at the time of inheriting. Further, depending on the combination of the curved portions for advancing the scraper in a curved shape, the conveying path can be changed from 0 ° to 180 °, and the scraper can be advanced in an S shape. Therefore, it is possible to dispose the device without interfering with other devices, so that the layout in the facility can be made flexible.

Since the blade body is bent in an arc shape as described in claim 2, the inner wall surface comes into contact with the curved surface when moving in the curved carrying case, and the case can be easily and smoothly curved. Can be transported.

[Brief description of drawings]

FIG. 1 is an overall plan view of a slat conveyor.

FIG. 2 is likewise an overall side view of the slat conveyor.

FIG. 3 is a cross-sectional perspective view of a blade body and a scraper of the present invention traveling in a curved case.

FIG. 4 is a plan cross-sectional view showing a passing posture of the chain when changing the transport direction.

FIG. 5 is a side view showing the connection between the blade body for inserting the scraper in the front part and the chain.

FIG. 6 is a plan view of a blade body that is slidable from side to side with a scraper fitted therein.

FIG. 7 is a front cross-sectional view showing an up / down push plate that guides a blade body in a curved case.

FIG. 8 is a front sectional view showing another embodiment of the upper and lower push plates.

FIG. 9 is a block diagram showing a process of drying and storing paddy.

[Explanation of symbols]

A slat conveyor 1 feather body 1b Abutment part 14.15 sprockets 16 scraper 17 chains 23 ・ 24 Push plate

Claims (2)

(57) [Claims] 1. A chain is wound in a substantially box-shaped carrying case, and vanes are arranged on the outer peripheral surface of the chain at regular intervals in a direction perpendicular to the carrying direction, and a scraper guide is provided in front of the vane. And a scraper having substantially the same length as the inner width of the transport case is disposed on the scraper guide so as to be slidable from side to side. 2. The conveyor according to claim 1, wherein the blade body is provided with bent portions bent in an arc shape on both left and right sides.