JPH0361208A - Cylinder shaped belt conveyer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Separation] The present invention relates to a cylindrical belt conveyor device of the so-called clasped hands type, and more specifically, a cylindrical belt that has been improved to solve the problem of misalignment of the ends of the conveyor belt that overlap in the clasped hands shape. Concerning conveyor equipment.

[Prior Art] In a gassho type cylindrical belt conveyor device, a cylindrical guide member consisting of a plurality of rollers disposed in the circumferential direction is arranged in series along the running direction of an endless belt. The conveyance space is created by deforming the endless belt so that the end portions of the endless belt overlap in a cross-sectional shape and the central portion has a cylindrical shape.

In the above-mentioned cylindrical belt conveyor device, the ends of the endless belt in the cross-sectional direction overlap each other in the shape of palms together.
It is possible to ensure the sealing performance of the cylindrical conveyance space, which is advantageous in improving the problem of cargo spillage.

However, if the load of the conveyed object becomes uneven, the ends of the conveyor belt may shift and move, making it impossible to maintain the normal palm-clasped shape.

An increase in the amount of deviation causes problems such as an increase in load when the conveyor belt runs, damage to equipment such as the cylindrical guide member due to the increase in load, and a decrease in the sealing performance of the conveyance space.

[Problems to be Solved by the Invention] The present invention was developed in view of the above-mentioned circumstances, and its purpose is to suppress or correct misalignment of the ends in the cross-sectional direction when the conveyor belt is running, and to It is an object of the present invention to provide a cylindrical belt conveyor device that solves problems such as an increase in the load on the belt, damage to equipment such as a cylindrical guide member, and a decrease in the sealing performance of the conveyance space.

[Means for Solving the Problems] The cylindrical belt conveyor device of the present invention includes a base, an endless belt installed on the base so as to be able to run, and a belt conveyor installed on the base, at least a part of which is arranged in a cross-sectional shape. A cylindrical belt conveyor device having a plurality of cylindrical guide members such as a plurality of rollers disposed in the circumferential direction that guide the ends by overlapping each other in a clasped shape and deform the center part into a cylindrical shape. In the above, at least one of the cylindrical guide members includes a deviation detection means for detecting deviation of the end portion of the endless belt that overlaps with the palms of the endless belt, and a base for changing the direction of the rotation axis of at least some of the rollers depending on the amount detected by the deviation detection means. It has a roller swinging member that is swingably supported by the roller swinging member, and is characterized in that the roller whose axial direction is changed by the roller swinging member suppresses or corrects misalignment between the ends. be.

[Function] When the endless belt runs, the endless belt is deformed by the cylindrical guide member, and as a result, the central portion of the endless belt in the cross-sectional direction is deformed into a cylindrical shape by the rollers of the cylindrical guide member, and a conveyance space is formed. The ends of the endless belt in the cross-sectional direction are overlapped in a clasped shape by the rollers of the cylindrical guide member.

By the way, when the ends of the endless belt shift while running, the shift detection means detects the amount of shift, and the roller swinging member swings accordingly, thereby suppressing the shift of the ends. Alternatively, change the direction of the rotation axis of the roller of the cylindrical guide member in the direction of correction.

[Example] Hereinafter, an example of the cylindrical belt conveyor device of the present invention will be described with reference to the drawings.

The base 1 has four fixed pipes 10 as a conveyor frame arranged to extend along the conveying direction of the endless belt 2, and four fixed pipes 10 arranged in series along the length direction of the fixed pipes 10 and in the cross-sectional direction. The right mounting frame 11 and the left mounting frame 13 are placed so as to face each other from both sides, and a nut 121 is inserted into the mounting holes 110 and 130 of the opposing mounting frames 11 and 13 having threaded portions 120 at both ends. and a connecting rod 12 that is screwed and fixed to each screw portion 120.

Here, the upper side of the base 1 is an outbound route A that runs from the conveyed article loading place to the conveyed article discharge place; This is said to be the B side of the return trip. A drive pulley for the enclosure is disposed at the tip end of the fixed pipe 10, and a driven pulley for the enclosure is disposed at the other end of the fixed pipe 10. An endless belt 2 is movably installed between the driving pulley and the driven pulley.

The endless belt 2 has the shape of a flat bell 1 and is formed in the cross-sectional direction by a central part 20 and ears 21, 22 as end parts formed on both sides of the central part 20. Note that the boundary area between the ears 21 and 22 and the center part 20 has a small rigidity, that is, is made easy to bend, by reducing the thickness of the canvas embedded in the endless belt 2.

On the forward path A side of the fixed pipe 10, a large number of forward side cylindrical guide members are arranged in series along the running direction of the endless belt 2. On the return path B side of the fixed pipe 10, a large number of return path side cylindrical guide members are arranged in series along the running direction of the endless belt 2. Note that FIGS. 1 and 2 show an outward cylindrical guide member 3 and a return cylindrical guide member 6 according to the present invention.
are shown one by one.

An explanation will be added regarding the outward cylindrical guide member 3.

That is, each outward cylindrical guide member 3 includes a right swing bracket 31 as a roller swing member supported at a position close to the center of the right mounting frame 11 via a shaft portion 30, and Two right guide roller devices 32 held by a bracket 31, and a left roller swinging member that is swingably supported via a shaft portion 33 at a position near the center of the left mounting frame 13. two left guide roller devices 35 swingably supported by the left swing bracket 34, and an erection bracket 36 installed between the mounting frames 11 and 13; A support roller device 37 and a presser roller device 42 supported by the erection bracket 36
It is equipped with

In addition, as shown in FIG. 3, the other outbound side cylindrical guide members include a right ear guide roller device 39 held on an upper bracket 38 fixed to the right mounting frame 11 side, and a left side cylindrical guide member. A left ear guide roller mount @41 held by the upper bracket 40 is provided on the mounting frame 13 side.

The swinging brackets 1 to 31.34 that characterize this embodiment are as follows:
It is adapted to swing along the running direction of the endless belt 2 via the shaft portions 30, 33, that is, in the directions of arrows X1 and X2. The guide roller device 32.35 mentioned above
The central portion 20 of the endless belt 2 in the cross-sectional direction is deformed into a cylindrical shape. The support roller device 37 is
It supports the bottom of the endless belt 2 on the outward path A side.

The presser roller device 42 is the endless belt 2 on the return path B side.
This is something that holds down the ceiling of the building. Ear guide roller device 39
．． Reference numeral 41 is for sandwiching the ears 21 and 22 of the endless belt 2 and stacking them in the shape of palms together.

Furthermore, in this embodiment, in the outward cylindrical guide member 3, a detection arm 43 is coupled to the upper end of the right swing bracket 31, as shown in FIG. A detection roller 45 serving as a detection means is rotatably held via. Further, a left detection arm 46 is connected to the upper end of the left swing bracket 34, and a left detection roller serving as a detection means is connected to the tip of the left detection arm 46 via a shaft 47. 48 is rotatably supported.

Now, to explain the connection structure between the right detection roller 45 and the right detection arm 43, as shown in FIG. Detection roller 4 via radial bearing 452
5 is rotatably supported, and the shaft 44 is fixed to the detection arm 43 via a thrust bearing 453. A coil spring 455 is interposed between a locking plate 454 that contacts the thrust bearing 453 and the detection roller 45, and the biasing force of the coil spring 455 causes the detection roller 45 to
The thrust bearing 453 is urged toward the detection arm 43 side. Note that the left detection roller 48 is also supported by the left detection arm 46 with a similar structure via a coil spring 455 and a thrust bearing 453.

Note that the detection roller 45.48 has a tail portion 45a for pressing and holding the ear portion 21.22 of the endless belt 2.
, 48a are formed.

The return side cylindrical guide member 6 has basically the same configuration as the outbound side cylindrical guide member 3, so the explanation will be omitted, and the same parts will be given the same symbols as the outbound side cylindrical guide member 3, and different parts will be explained. do. That is, the right detection arm 4 on the return path B side
3. The left detection arm 46 is urged upward by a biasing member such as a spring member in the enclosure so that it does not droop due to its own weight, and this causes the right detection roller 45 to move to one side of the endless belt 2 on the return path B side. The left detection roller 48 is pressed against the other ear 22 .

Next, the function of the cylindrical conveyor belt device according to this embodiment will be explained along with its usage method.

First, the drive pulley in the enclosure provided in the base 1 is driven to run the endless belt 2 along the fixed pipe 10 between the drive pulley and the driven pulley. When the endless belt 2 runs on the outward path A side, the endless belt 2
The bottom part of is supported by a support roller device 37 of the outward cylindrical guide member 3. At this time, the central portion 20 of the endless belt 2 in the cross-sectional direction is deformed into a cylindrical shape by the guide roller devices 32, 35 to form the forward transport space 2a, and the endless belt 2 ear part 21.
22 are sandwiched by the ear guide rollers @39 and 41 and overlapped in the shape of palms together, thereby sealing the forward transport space 2a and preventing spillage of the transported objects in the transport space 2a.

In addition, when the endless belt 2 runs on the return path A side, basically the same effect as that on the outbound path B side is performed. That is, the ceiling portion of the endless belt 2 running on the return path B side is pressed by the presser roller device 42 of the return path side cylindrical guide member 6, and
The center portion 20 of the endless belt 2 in the cross-sectional direction is the return path B.
It is deformed into a cylindrical shape by the side guide roller device @32.35 to form a conveyance space 2b for the return trip, and the lug 21 of the endless belt 2 is used as a guide for the return trip B side in the same way as for the outbound trip A side. [1-Ra devices 39 and 41 sandwich them and overlap them in the shape of palms together, and the return transport space 2b is sealed.

By the way, when the load of the conveyed object acting on the endless belt 2 becomes uneven, there is a possibility that the ears 21 and 22 of the endless belt 2, which overlap each other in the shape of palms together, may shift and move in the vertical direction. For example, endless belt 2 on the outbound A side
Taking as an example a case in which the right lug 21 of the endless belt 2 is displaced upward, in this embodiment, when the endless belt 2 runs, the right lug 21 of the endless belt 2 on the outward path A side is displaced upward. When the right detection roller 45 is displaced, the right detection roller 45 is lifted by the ear portion 21, and the detection roller 45 on the other side is displaced along the locus line P centered on the shaft portion 30 in FIG. As a result, the right detection arm 43 and, by extension, the right swing bracket 31 swing about the shaft portion 30 in the direction of movement of the endless belt 2, that is, in the x1 direction of the arrow. Therefore, the rollers 320 of the two right guide roller devices 32 move obliquely, and the direction of the rotation axis 321 of the rollers 320 changes. As a result, the right portion of the endless belt 2 is pressed down by the roller 320 of the upper guide roller device 32 of the two right guide roller devices 32.

Therefore, the upward displacement of the right ear portion 21 is suppressed or corrected, and as a result, the displacement between the ear portions 21.22 is suppressed or corrected, and the ear portions 21.22 return to their normal clasped palms shape.

In addition, the left ear portion 22 of the endless belt 2 on the outward path B side
Similar actions and effects can be obtained when is displaced upward. That is, when the left ear 22 is displaced upward, the left detection roller 48 is lifted, and the left detection arm 46 and, by extension, the left swing bracket 34 swing around the shaft 33 as the endless belt. 2, that is, in the direction of arrow X1, and the upper guide roller device 35 of the two left guide roller devices 35 presses down the left portion of the endless belt 2, as described above.

Therefore, as described above, upward displacement of the left ear portion 22 can be suppressed or corrected.

On the other hand, on the return journey B side, the ears 21 and 22 of the endless belt 2
The same operation is performed when the ear part 21 is out of alignment.
．． 22 is suppressed or corrected.

In this way, in this embodiment, it is possible to suppress or correct the misalignment of the ear portions 21 and 22 on both the outward path A side and the return path B side.
．． This eliminates the problem of the endless belt 2 running with a large deviation of the cylindrical guide member 22, and prevents overload on the guide roller devices 32, 35 and the edge guide roller devices 39, 41 of the outward cylindrical guide member 3 and the return cylindrical guide member 6. can be prevented from occurring, these EIWJs can be prevented, and furthermore, overload on the endless belt 2 can be prevented.

[Other Embodiments] In the above-mentioned embodiment, two guide roller devices 32 for cylinder formation are held on the right swing bracket 31, and a guide roller device 32 for cylinder formation is held on the left swing bracket 34. Two rollers @35 are held, but the invention is not limited to this, and two or more rollers are held depending on the cylindrical diameter size of the endless belt 2.
For example, a large number of them may be held.

In addition, due to the influence of vibrations during running of the endless belt 2, the ears 21 and 22 of the endless belt 2 on the outward path A side
The detection roller 45.48 may float from the edge, and the detection roller 45.48 may fall from the ear portion 21.22 on the forward path B side. In this case, a problem arises in that the detection sensitivity for detecting the displacement of the ear portions 21.22 is reduced, and the ability of the detection rollers 45.48 to follow the displacement of the ear portions 21.22 is reduced. Therefore, in this case, a weight is added to the detection arm 43.46 or the detection roller 45.48 on the outbound path A side, and a biasing member that urges the detection arm 43.46 of the return path B on the return path B side. The urging force of can be increased. In this way, the ears 21 and 22
The tracking ability of the detection rollers 45 and 48 with respect to the displacement can be improved.

[Effects of the Invention] According to the cylindrical conveyor belt device of the present invention, the direction of the rotation axis of the roller of the cylindrical guide member changes as the detection means detects it, so that the deviation of the end portion in the cross-sectional direction of the endless belt can be prevented. This can be suppressed or corrected, and problems such as an increase in the load on the endless belt, damage to equipment such as cylindrical guide members due to the increase in load, and a decrease in the sealing performance of the conveyance space can be improved.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the main parts of the device, FIG. 2 is a cross-sectional view of the main parts of the device, and FIG. 3 is a cross-sectional view showing the vicinity of the ear guide roller device. 4 are cross-sectional views of the vicinity of the detection roller. In the figure, 1 is the base, 2 is the endless belt, 20 is the center,
Reference numerals 21 and 22 indicate an ear portion (O'a section), 3 indicates a forward Wt side cylindrical guide member, 31.34 indicates a swinging bracket (roller swinging member), and 45.48 indicates a detection roller (displacement detection means).

Claims (1)

[Claims] (1) a base, an endless belt installed on the base so as to be able to travel; and an endless belt disposed on the base, with at least a portion of the endless belt overlapping each other in a cross section in the shape of palms together, and a center In a cylindrical belt conveyor device having a plurality of cylindrical guide members each including a plurality of rollers disposed in a circumferential direction that deform and guide a part into a cylindrical shape, at least one of the cylindrical guide members includes: a deviation detecting means for detecting a deviation of the end portion overlapping the palms-up shape of the endless belt; and a base part that is swingably supported to change the direction of the rotation axis of at least some of the rollers depending on the amount detected by the deviation detecting means. A cylindrical belt conveyor device comprising: a roller swinging member, the roller having its axial direction changed by the roller swinging member to suppress or correct misalignment between the ends.