JP2585139B2 - Conveyor equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conversion device for transferring an article conveyed on a main conveyance path to a branch conveyance path provided outside a side of the main conveyance path. The present invention relates to a conveyor device used in the present invention.

2. Description of the Related Art Conventionally, as this type of conversion device, for example, Japanese Unexamined Patent Publication No.
The structure found in -139420 is provided. In this conventional type, the frame has a pair of left and right side rails, and a chain rail having a cross-sectional shape is provided on the inner part of these side rails, and a pair of right and left chains which are fitted and supported and guided by the chain rail are provided. I have. A number of pipe members are arranged between the chains via L-shaped brackets, and an engagement pad guided by the pipe members and movable in the left-right direction is provided. A guide rail group of the guide device provided on the back surface of the engagement pad is provided, and a switch is provided at a branch formed by the guide rail group. Outside the sides, rails are provided for receiving the goods to be converted.

According to this conventional type, articles can be supported and conveyed by a group of pipe members that move integrally by driving the chain, and at that time, the engaging pads are moved in the width direction of the conveyor by the guides of the guide rails. The group will push the article sideways and transfer it to the rail.

According to the conventional type described above, for example, when the engagement pad is removed for assembly or replacement, after lifting the chain 61 upward from the chain rail 60 as shown by the phantom line in FIG. 12, In order to remove the bracket 64 from the shaft 63 of the pipe member 62,
As shown in FIG. 13, the chain 61 must be moved outward, and at that time, the chain 61 comes off from the tube member 62A adjacent to the target tube member 62, which facilitates subsequent assembly. I can't do it quickly.

SUMMARY OF THE INVENTION An object of the present invention is to provide a conveyor device capable of separating a desired roller from a chain.

Means for Solving the Problems In order to achieve the above object, the conveyor device of the present invention comprises:
A pair of left and right chains arranged along the main transport path, a number of rollers mounted between these chains via free ends, and rollers in a direction orthogonal to the main transport path, and a main body frame for guiding the chains. And a guide rail disposed on the upper portion on both sides of the chain, the guide rail has an upward guide surface for supporting and guiding the chain, and a side cover portion located outside the chain. An end cap is formed, and a link hole of the chain is formed at a center portion of the end cap so that the link pin can be detached from a roller axial direction. A slit portion is formed at a location, communicating with the outer end of the fitting hole and allowing the link pin to move up and down.

According to the configuration of the present invention, by moving the chain by supporting and guiding each chain on the guide rail, the article can be conveyed via a number of rollers attached between the chain. At this time, the chain and the roller are maintained in a connected state without being separated because the link pin is fitted with a sufficient length and the side displacement of the chain is prevented by the side cover portion. . When repairing the roller, first, the target roller is rotated with respect to the link pin so that the slit portion is located directly above, and one or a plurality of rollers located before and after the target roller are located. By rotating the roller with respect to the link pin, the slit portion is turned sideways or downward. In this state, the chain is lifted, and the chain portion facing the target roller is moved outward. As a result, the link pin is pulled out of the fitting hole, but before the link pin is completely pulled out, the inner end of the link pin faces the slit portion, so that the target roller comes off in a drop shape. However, the adjacent roller does not come off because the non-slit portion faces the inner end of the link pin from above. With this, only the target roller can be removed,
Also, assembly can be performed by the reverse action.

Embodiment An embodiment in which the conveyor device of the present invention is incorporated in a conversion device will be described below with reference to FIGS. 1 to 11.

1, 4, 7, and 8, reference numeral 1 denotes a main body frame, which is a pair of upper and lower frame members 2 and 3 on both sides, and a vertical connecting member 4 for connecting the upper and lower frame members.
, A horizontal connecting member 5 for connecting the left and right frame members, a leg body 6 provided downward from the lower frame member 3, and the like. The frame members 2, 3 are formed in an L-shape by vertical members 2a, 3a and horizontal members 2b, 3b by extrusion of aluminum, and the vertical members 2a, 3a are inside, and a notch-shaped step is formed. The parts 2c and 3c are disposed so as to be open to the outside. Further, the frame members 2 and 3 have an inwardly upward dovetail groove 7a at the upper end of the longitudinal members 2a and 3a, and an inwardly downward dovetail groove 7b and an outer downward dovetail groove 7c in the lateral members 2b and 3b. An outward upward dovetail groove 7d is formed on the step portion 2c, 3c side of 2b, 3b. These dovetail grooves 7a to 7d are formed over the entire length in the longitudinal direction during the extrusion molding described above. The vertical connecting member 4 has a plate-shaped nut body 8 positioned in an outward downward dovetail groove 7c of the upper frame member 2 and a bolt 9 passed from below through the upper end of the vertical connecting member 4 to the nut body 8. The upper frame member 2 is integrated with the lower frame member 3 by tightening and tightening, and the lower frame member 3 is integrated with the lower frame member 3 by using the nut body 8 and the bolt 9 described above by using the outer upward dovetail groove 7d of the lower frame member 3. . This vertical connecting member 4
Are arranged at predetermined intervals in the length direction of the frame members 2 and 3, thereby forming a space between the vertical connecting members 4. Similarly, a plurality of horizontal connecting members 5 are provided between the upper frame members 2 and between the lower frame members 3 by using nuts 8 and bolts 9 by utilizing the inner downward dovetail grooves 7b. The leg body 6 is connected to the lower frame member 3 by a nut body 8 and a bolt 9 using the outer downward dovetail groove 7c of the lower frame member 3. A forward guide rail 22 made of, for example, a resin molded product is attached to the inside upward dovetail groove 7a of the upper frame member 2 by being inserted in the longitudinal direction.
A return-side guide rail 23 is similarly attached to 7a. After the guide rails 22 and 23 are inserted as described above, the guide rails 22 and 23 are fixed to the frame members 2 and 3 with screws or the like, and the inner upward dovetail groove 7a forms a mounting portion for the guide rails 22 and 23. The guide rails 22 and 23 have upward guide surfaces 22a and 23a for supporting and guiding a chain (described later), and also have side cover portions 22b and 23b standing upright from outer ends.

A driven shaft 10 in the width direction is rotatably disposed at the start end of the main body frame 1 configured as described above, and a drive shaft 11 is rotatably disposed at the end. This drive shaft 11
7 and 8, the drive device 12 has an electric motor 13 and a speed reducer 14 integrated therewith, as shown in FIGS.
The output part of the speed reducer 14 is formed as a hollow shaft. The hollow shaft can be fitted to the outside protruding portion of the drive shaft 11, and the two 15, 15 are linked via a key or the like. The main body of the speed reducer 14 is connected to the main body frame 1 via a torque arm 16 or the like. A chain (an example of an endless rotating body) 19 is disposed between opposing portions at both ends of the driven shaft 10 and the drive shaft 11 via sprockets 17 and 18, and a roller is provided between the right and left chains 19. A large number of 20 are installed. Here, as shown in FIGS. 1, 3, and 4, the roller 20 includes a cylindrical portion 20A and an end cap 20B which is fitted to and integrated with both ends thereof. A centrally located fitting hole 20C is formed in the roller axis direction. The link pin 19A of the chain 19 protrudes long inward, and the link pin 19A is closely fitted in the fitting hole 20C. Further, an annular portion 20D protruding outward is integrally formed at the center of the outer surface of the end cap 20B, and at one location in the circumferential direction of the annular portion 20D, it communicates with the outer end of the fitting hole 20C and Link pin 1
A slit portion 20E that allows the vertical movement of 9A is formed.
Chain 19 is a support guide surface 22a, 2 for both guide rails 22, 23.
Guided by 3a.

Between the rollers 20, for example, at every two places, a movable body 25 which is guided by the front and rear rollers 20 and is movable in the width direction.
Is provided. The movable body 25 includes a sliding portion 26 located between the rollers 20 as shown in FIGS.
It consists of a working part 27 for lateral pressing located on the surface side of 26,
A guide roller 28, which is an example of a guided portion, is attached to the back surface of the sliding portion 26 via a roller shaft 29. As shown in FIGS. 9 to 11, an outward guide body group 30 for guiding the guide rollers 28 is provided on the upper surface side of the horizontal connecting member 5 provided between the upper frame members 2 of the main body frame 1, and a lower surface thereof. A return guide group 40 is disposed on the side. At the center branch, an upper switching device 50 on the forward path and a lower switching device 51 on the return path are disposed, and a pair of right and left sorting devices 52A and 52B are disposed near the starting end on the forward path.

The forward guide body group 30 is provided with a pair of left and right start guides 31A and 31B on both sides of the start end, and ends of the start guides 31A and 31B via the sorting devices 52A and 52B. A pair of left and right inner movement guides 32A, 32B inclined inward toward the side, and these inner movement guides 32A, 32B
A pair of left and right outer movement guide portions that face the end of the upper switching device 50 via the upper switching device 50, and are inclined outward toward the lower side.
33A, 33B and a pair of left and right end guides 34A, 34B disposed opposite to the ends of the outer movement guides 33A, 33B, respectively.
Consists of The return guide body group 40 includes a pair of left and right inner movement guide portions 41A, 41B that are inclined inward toward the lower side.
And a pair of left and right outer moving guides 42A, 42B that face the ends of the inner moving guides 41A, 41B via the lower switching device 51 and are inclined outward toward the lower side. The two guide body groups 30 and 40 include, for example, a main body 44 made of an extruded aluminum product and a main body 44 as shown by a starting end guide section 31B and an outer moving guide section 42B in FIG.
It consists of a resin guide plate 45 attached to the inner side of 44,
The main body 44 is fixed to the connecting member 5 via a bracket 46. As shown in FIG. 5, wheels 47A, 47B, 48A, and 48B that allow fitting of the guide roller 28 are attached to both shafts 10 and 11 in order to guide the guide roller 28 at the reversing portion at all times. ing.

As shown in FIGS. 4 and 7, on both outer sides of the main body frame 1, branch conveyors 54A, 53B forming branch paths 53A, 53B inclined outward and downward with respect to the main transport path 21. 54B
Is provided. Here, the branch conveyors 54A and 54B have a large number of rollers 55, and the ends of these rollers 55 are located in the step 2c of the upper frame material 2 and in a state where they are sufficiently close to the vertical members 2a. Be placed. The outward dovetail groove 7d of the upper frame member 2 can be used for connection with the branch conveyors 54A and 54B. 56 indicates an article.

Next, the operation of conveying and branching the article 56 in the above embodiment will be described.

By driving the electric motor 13 of the driving device 12 and rotating the hollow shaft of the speed reducer 14, the sprocket 17 is forcibly rotated via the driving shaft 11 fitted inside the hollow shaft, thereby
The guide rail 19 can be moved while being supported and guided by the support guide surfaces 22a and 22b of the guide rails 22 and 23. Accordingly, the group of rollers 20 circulates, so that the article 56 supplied on the roller 20 at the start end is conveyed on the main conveyance path 21. At that time, the movable body 25 that moves integrally with the roller 20 group, the guide roller 28 is guided by the guide body group 30, 40, and reciprocates in the width direction via the sliding portion 26, Main transport path 21
Or move along a straight line.

That is, for example, the guide roller 28, which is guided by one of the start guide portions 31A, is guided straight when the sorting device 52A is in the straight sorting posture, and straightly moves without receiving the guide action, and thereafter the end guide portion 34A Will be guided to. Accordingly, the movable body 25 does not act on the article 56, and the article 56 is conveyed in a straight line along the main conveyance path 21. The same applies to the opposite side, and the guide roller 28 of the start end guide portion 31B is moved from the sorting device 52B to the end guide portion 3B.
It will move to 4B.

The guide roller 28 guided by the one start guide 31A is guided inclining inward when the distribution device 52A is in the inclined distribution posture, and is moved inward by being guided by the inner moving guide 32A. , Upper switching device 50
The outer moving guide 33B moves to the outer moving guide 33B, and is moved outward by being guided by the outer moving guide 33B.
You will be guided to 4B. As a result, the movable group 25
While moving in the conveyance direction, the main body crosses the main conveyance path 21, thereby laterally pressing the article 56, and
To the outside branch conveyor 87B. The same applies to the opposite side, and the guide roller 28 of the starting end guide portion 31B is provided.
Is guided by the sorting device 52B, the inner moving guide portion 32B, the upper switching device 50, the outer moving guide portion 33A, and the end guide portion 34A, and passes the article 56 to the branch conveyor 54A. At this time, the article 56 on the guide roller 28 climbs over the vertical member 2a supporting the chain 19, and transfers to the roller 55 located on the step 2c.

As described above, the guide roller 28 that has reached the ends of the end guide portions 34A, 34B is guided by the ring bodies 48A, 48B to be inverted, and is guided to the inner moving guide portions 41A, 41B to be moved to the center of the width. You. After being distributed to the left and right by the lower switching device 51 (to be described later), the outer movement guide portions 42A and 42B
After being guided outward by the guide, and then guided and reversed by the wheels 47A, 47B, it is moved to one of the start guide portions 31A, 31B.

As described above, each chain 19 is connected to guide rail 2
By being supported and guided by the guides 2 and 23, the article 56 can be conveyed via a large number of rollers 20 attached between the chains 19. At this time, as shown by a solid line in FIG. 1, the chain 19 and the roller 20 are fitted with a link pin 19A having a sufficient length and a lateral displacement of the chain 19A is caused by the side cover portions 22b and 23b. By being blocked, the bonded state is maintained without detachment. When the operation of the conveyor is stopped and the roller 20 and the movable body 25 are repaired, first, the target roller 20 is rotated with respect to the link pin 19A, and as shown in the solid line in FIG. 2 and FIG. The slit portion 20E is positioned directly above the link pin 19A. Then, one or a plurality of rollers 20 located before and after the target roller 20 are rotated with respect to the link pin 19A, and the slit portion 20E is formed as shown by the solid line in FIG. 1 and FIG. The ring portion 20D is directed downward (or sideways), and the annular portion 20D is positioned directly above the link pin 19A. In this state, the chain portion facing the target roller 20 is lifted together with the roller 20 as shown by the imaginary line in FIG. At the same time, the adjacent part is lifted as shown by the imaginary line in FIG. Next, the link pin 19A is pulled out from the fitting hole 20C by moving the chain portion to the outside. Before the link pin 19A is completely pulled out, as shown by the imaginary line (a) in FIG. The end portion faces the slit portion 20E, so that the target roller 20 falls off in a state where the link pin 19A passes through the slit portion 20E. However, the adjacent roller 20 does not come off because the annular portion (non-slit portion) 20D faces the inner end of the link pin 19A as shown by the imaginary line (b) in FIG. Thereby, the target roller 20 and the movable body 25 can be separated. And the roller 20
And the movable body 25 can be assembled.

According to the configuration of the present invention, with a simple configuration and operation, only the target roller can be detached from the chain, handling can be performed easily, and subsequent assembly can be performed easily and quickly. Can be done.

[Brief description of the drawings]

1 to 11 show an embodiment of the present invention. FIGS. 1 and 2 are longitudinal sectional front views in which main parts are enlarged, FIG.
4 is a longitudinal sectional front view of the main part, FIG. 5 is a plan view of the same, FIG. 6 is a longitudinal sectional side view thereof, FIG. 7 is a schematic plan view of the whole, FIG. 8 is a schematic side view of the same, FIG. Is a schematic plan view showing a forward guide body group, FIG. 10 is a schematic plan view showing a return guide body group, FIG. 11 is a schematic side view thereof, FIG. 12 is a longitudinal sectional front view of a main part showing a conventional example, FIG. FIG. 13 is a schematic plan view of the same. 1 ... body frame, 2 ... upper frame material, 3 ... lower frame material, 4 ... vertical connecting member, 5 ... horizontal connecting member,
6 ... Leg, 7a ... Inward upward dovetail (mounting part), 12
…… Drive device, 19 …… Chen, 19A …… Link pin, 20
…… Roller, 20B …… End cap, 20C …… Mating hole, 20
D ... annular part, 20E ... slit part, 21 ... main transport path,
22: forward guide rail, 23: return guide rail, 22a, 23a upward guide surface, 22b, 23b side cover, 25 movable body, 28 guide roller (guided) Part), 29: Roller shaft, 30: Outbound guide body group, 40:
Returning guide body group, 50: Upper switching device, 51: Lower switching device, 53A, 53B: Branch path, 54A, 54B ... Branch conveyor, 55: Roller, 56: Article.

Claims (1)

(57) [Claims] 1. A pair of left and right chains arranged along a main transport path, a large number of rollers attached between these chains via free ends, and rollers in a direction orthogonal to the main transport path, and guides the chain. A guide rail disposed on both upper sides of the main body frame, the guide rail has an upward guide surface for supporting and guiding the chain, and a side cover portion located outside the chain. An end cap is provided at the free end, and a link hole of the chain is formed at the center of the end cap so that the link pin of the chain can be detached from the roller axis direction. A conveyor device, wherein a slit portion communicating with the outer end of the fitting hole and allowing the link pin to move up and down is formed at one location in the circumferential direction.