JPH04144826A - Change-over device - Google Patents

Abstract

PURPOSE:To prevent dust from invading in a device for changing over to a branch transport passage, by installing a chain guide rail on the tops of both sides of a body frame, and forming an engagement groove provided with an elastic retainer part for engaging and disengaging to hold a cover body elastically so as to be engaged and disengaged. CONSTITUTION:A guide rail 22 is inserted and fixed, in a lengthwise direction, into an inside upward dovetail groove 7a formed in the upper frame 2 of a body frame. At the guide rail 22, a supporting guide surface 21a and a side cover part 22b which support a chain 19 are formed to support the chain 19. At the upper part of the frame material 12, an elastic retainer 35 forming a locking groove 36 which opens inwards over the whole length, is provided. In a cover body 37 which covers the upper open part of the guide rail 22, a locking part 38 installed at its end is fitted into the locking groove 36 against elastic force of the elastic retainer 35 to prevent dust invasion.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used to transfer articles being transported on a main transport route to a branch transport route provided outside the main transport route. The present invention relates to a conversion device.

BACKGROUND OF THE INVENTION Conventionally, this type of device has been disclosed, for example, in Japanese Unexamined Patent Publication No. 1-13
The structure found in the '9420 publication is provided.

In this conventional type, the frame has a pair of left and right side rails,
Chain rails with an opening-shaped cross section are provided on the inner portions of these side rails, and a pair of left and right chains are provided that fit into the chain rails and are supported and guided. A large number of pipe members are disposed between the chains, and an engagement pad is provided that is guided by the pipe members and is movable in the left-right direction.

A guide rail group of a guide device is provided on the back surface of this engagement pad, and a switch is provided at a branch portion formed by the guide rail group. Also provided on the outside of the side are rails for receiving the articles to be converted.

According to this conventional type, articles can be supported and conveyed by a group of pipe members that move together by the drive of a chain, and at this time, the engaging pad is moved in the width direction of the conveyor by the guide of a group of guide rails, so that the engaging pad The group pushes the items sideways and transfers them to the rails.

Problems to be Solved by the Invention According to the above-mentioned conventional type, dust tends to accumulate in the chain rail, which cannot be easily cleaned, and the chain does not move smoothly due to the dust. Furthermore, it can easily lead to dangerous situations such as clothing getting caught in the chain.

It is an object of the present invention to provide a conversion device that can prevent dust from moving to the endless rotating body, allows easy maintenance and inspection of the endless rotating body, and is safe.

Means for Solving the Problems In order to achieve the above object, the conversion device of the present invention! consists of a pair of left and right endless rotating bodies arranged along the main conveyance path, a large number of guide bars installed between these endless rotating bodies, and in a direction perpendicular to the main conveyance path, and movable wheels guided by these guide bars. body, a guided portion provided on the back side of the movable body,
It consists of a guide body group that guides these guided parts, a switching device arranged at the branching part of these guide body groups, and a main body frame, and guide rails that support and guide the endless rotating body on both sides of the main body frame. Further, a locking groove is formed at the upper part of both sides by having an elastic pressing part at the upper end, and a cover body which can be freely disposed above the endless rotating body is provided, and at the outer end of this cover body, A locked portion is formed that can be freely engaged and detached from the locking groove against the elasticity of the elastic holding portion.

According to the configuration of the present invention, the endless rotating body is supported and guided by the guide rail and moved, and the guide bar group is moved, so that the articles supplied to the starting end of the main conveyance path are conveyed toward the terminal end. be done. At this time, the movable body that moves integrally with the guide bar is guided by the guide body group and moves in the width direction, thereby causing the movable body to push the article sideways and push it out. At this time, the cover body is positioned above the endless rotating body by engaging its locked portion with the locking groove, and is supported on the main body frame side. Not only can this prevent it from moving to the side, but it can also prevent clothes and the like from getting caught. The cover body can be removed by separating the locked portion from the locking groove against the elasticity of the elastic holding portion, thereby allowing maintenance and inspection of the endless rotating body and the like.

Example An embodiment of the present invention will be described below based on the drawings.

In Figures 1, 2, 5, and 6, reference numeral 1 denotes a main body frame, and a pair of upper and lower frame members 2.3 are arranged on both sides, and a vertical frame member 2.3 connects the upper and lower frame members 2.3. A connecting member 4 and a horizontal connecting member 5 that connects the left and right frame members.
The lower frame member 3 is composed of legs 6 and the like extending downward from the lower frame member 3.

The frame members 2 and 3 are formed by extrusion molding of aluminum and have vertical members 2a and 3a and horizontal members 2b.

3b, and is formed into an L shape by the vertical members 2a, 3.
A is the inside, and the notch-shaped step portion 2C.

It is arranged with 3C open to the outside. Furthermore, frame material 2
．． 3 has an inwardly upward dovetail groove 7 at the upper end of the vertical members 2a and 3a.
In addition, an inner downward dovetail groove 7b and an outer downward dovetail groove 7c are formed on the cross member parts 2b and 3b, and an outer upward dovetail groove 7d is formed on the step parts 2C and 3C side of the cross member parts 2b and 3b. These dovetail grooves 7a to 7d are formed over the entire length in the length direction during the extrusion molding described above. The vertical connecting member 4 has a plate-shaped nut body 8 positioned in the outer downward dovetail groove 7c of the upper frame member 2, and a bolt 9 passed through the upper end of the vertical connecting member 4 from below from the nut body 8. By fitting and tightening, it is integrated with the upper frame material 2, and by using the outer upward dovetail groove 7d of the lower frame material 3, it is integrated with the lower frame material 3 by the aforementioned nut body 8 and bolt 9. .

A plurality of vertical connecting members 4 are arranged at predetermined intervals in the length direction of the frame member 2.3, thereby forming spaces between the vertical connecting members 4. Similarly, a plurality of horizontal connecting members 5 are provided between the upper frame member 2 and the lower frame member 3 by means of nut bodies 8 and bolts 9 using the inner downward dovetail grooves 7b. The leg body 6 is connected to the lower frame member 3 using the outer downward dovetail groove 7c of the lower frame member 3 by means of a nut body 8 and a bolt 9. In the inner upward dovetail groove 7a of the upper frame member 2, an outgoing guide rail 22 made of, for example, a resin molded product is provided.
is installed by inserting it in the length direction, and facing upward inside the lower frame material 3! Similarly, the return side guide rail 23 is attached to the III groove 7a. After these guide rails 22, 23 are inserted as described above, they are fixed to the frame member 2.3 side with screws or the like, and the inner upward dovetail grooves 7a form the mounting portion of the guide rails 22, 23.

Both guide rails 22, 23 form supporting guide surfaces 22a, 23a of an endless rotating body (described later) by their upper surfaces, and integrally form a side cover part 22b from their outer ends.

23b is erected. Further, the upper portions of both frame members 2.3 are provided with an elastic presser portion 35 at the upper end, and a locking groove 36 is provided at the upper end.
is formed over the entire length. This locking groove 36 is open upwardly inwardly, and has a V-shaped receptacle 36a formed on the bottom thereof, and an arc-shaped protrusion fitting portion on the lower surface of the free end of the elastic presser 35. 36b.

A widthwise driven shaft 10 is rotatably disposed at the starting end of the main body frame 1 configured as described above, and a drive shaft 11 is rotatably disposed at the terminal end. A drive device interlocked with this drive shaft 11! 12, as shown in FIGS. 5 and 6, an electric motor l113 and a reduction gear a1 integrated therewith
4, and the output part of this reduction gear l114 is formed into a hollow shaft. This hollow shaft can be fitted onto the outer protrusion of the drive shaft 11, and the two are interlocked via a key or the like. Also, the main body of the reducer l114 is the torque arm 16.
It is connected to the main body frame 1 via etc. A chino (an example of an endless rotating body) 19 is disposed between the opposing ends of the driven shaft 10 and the drive shaft 11 via sprockets 17 and 18, and between the left and right chises 219, A large number of rollers 20, which are examples of guide bars, are attached. As shown in FIGS. 1 and 2, the roller 20 is composed of a cylindrical portion 20A and end caps 20B that are integrally fitted into both ends of the cylindrical portion 20A.
A fitting hole 20C is formed in the center of the roller in the axial direction of the roller. The link pin 19A of the chino 19 protrudes inward and fits into the fitting hole 20C in a band shape. The ceno 19 is supported and guided by the support and guide surfaces 22a and 23a of both guide rails 22 and 23.

The cover body 37, which can be freely placed above the chino 19, is made of, for example, a resin molded product and is formed in the shape of a long plate, and the outer part thereof is bent outward and downward.

The outer end of the bent portion is formed into a locked portion 38 that can be freely engaged and detached from the locking groove 36 against the elasticity of the elastic holding portion 35. In other words, the receiving portion 36 is attached to the locked portion 38.
A V-shaped abutment part 38a that can be freely abutted from above and a fitted part 38b that can be fitted and removed from the fitting part 36b against the elasticity of the elastic presser part 35 are formed.

Between the rollers 20, for example, at every second location, movable bodies 25 are provided which are guided by the front and rear rollers 20 and are movable in the width direction. These movable bodies 25 are shown in FIGS.
A sliding part 26 located between the rollers 20 as shown in the figure,
Lateral push action section 2 located on the surface side of this sliding section 26
7, and a guide roller 28, which is an example of a guided portion, is attached to the back side of the sliding portion 26 via a roller shaft 29. As shown in FIGS. 7 to 9, 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 also on the lower surface side. A return guide body group 40 is arranged on the side. At the central branch, an upper switching device 50 on the outbound side and a lower switching device 51 on the inbound side are disposed, and furthermore, a pair of left and right switching devices 52A and 52B are disposed near the starting end of the outbound side. Ru.

The outgoing guide body group 30 includes a pair of left and right starting end guide portions 31A and 31B provided on both sides of the starting end, and a distributing device at the terminal end of these starting end guide portions 31A and 31B.
A pair of left and right circular movement guide portions 32A, 32B facing each other via 52A, 52B and inclined inward on the lower side.
A pair of left and right outer moving guide parts 33A, 3 are opposed to the terminal ends of these inner moving guide parts 32A, 32B via the upper switching device 50, and are inclined outward on the lower side.
3B, and a pair of left and right end guide portions 3 disposed opposite the end ends of these outer movement guide portions 33A and 33B.
It consists of 4A and 34B. Further, the return guide body group 40
, a pair of left and right circular movement guide parts 41A, 41B that are inclined inward on the lower side, and these circular movement guide parts 41A,
A six-guide group 30 consisting of a pair of left and right outer moving guide parts 42A and 42B that face each other via the lower switching device 51 at the terminal end of the lower part 41B and are inclined outward on the lower side.
．． Reference numeral 40 includes a main body 44 made of an extruded aluminum product, and a resin guide plate 45 attached to the inner surface of the main body 44, as shown by the starting end guide part 31B and the outer movement guide part 42B in FIG. 2, for example. The main body 44 is fixed to the connecting member 5 via a bracket 46. As shown in FIG. 5, a transport member 47A allows the guide roller 28 to be fitted onto both shafts 1011 in order to guide the guide roller 28 at the beginning and end of the reversing portion.

47B, 48A, and 48B are installed.

As shown in FIGS. 3 and 5, branch conveyors 54A and 53B are provided on both sides of the main frame 1, forming branch routes 53A and 53B that are inclined outward and downward with respect to the main conveyance route 21. 54B is provided. Here branch conveyor 5
4A and 54B have a large number of rollers 55, and the ends of these rollers 55 are located within the stepped portion 2C of the upper frame member 2 and are arranged in a state sufficiently close to the vertical member portion 2a. Note that the outer upward dovetail groove 7d of the upper frame material 2 is connected to a branch conveyor 54A.

Can be used for connection with 54B. 56 indicates an article.

Next, the conveyance and branching action of the article 56 in the above embodiment will be explained.

By activating the electric l113 of the drive device 12 and rotating the hollow shaft of the reducer 14, the sprocket 17 is forcibly rotated via the drive shaft 11 fitted inside the hollow shaft, thereby guiding both chains 19. It can be moved while being supported and guided by the support and guide surfaces 22a and 23a of the rails 22 and 23.

As a result, the group of rollers 20 moves in a circular manner, so that the article 56 fed onto the roller 20 at the starting end is transferred to the main conveyance path 20.
1 will be transported. At this time, the movable body 25 that moves integrally with the group of rollers 20 is moved by its guide roller 28.
is guided by the guide body groups 30 and 40, thereby reciprocating in the width direction via the sliding portion 26 or linearly moving along the main conveyance path 21.

That is, for example, the guide roller 28 guided by the starting end guide part 31A in all conditions is guided straight when the device 52A is in the linear posture, and then moves straight without being subjected to the guide action. Later the terminal guide part 34
You will be guided by A.

As a result, the movable body 25 does not act on the article 56, and the article 56 is conveyed straight on the main conveyance path 21. Note that the same applies to the opposite side, and the guide roller 28 of the starting end guide section 31B is distributed from the device 52B to the terminal end guide section 34B.
will be moved to.

- The guide roller 28 guided by the starting end guide part 31A in all situations is guided inwardly when the device 52A is in an inclined position, and the circular movement guide part 3
2A and moved inward, then moved to the outer movement guide part 33B via the upper switching device 50, guided by this outer movement guide part 33B and moved outward, and then guided to the end guide part 34B. That will happen. As a result, the group of movable bodies 25 crosses the main conveyance path 21 while moving in the conveyance direction, thereby exerting a lateral push on the article 56 and moving the article 56 to the outer branch conveyor 87B.
will be handed over to. Note that the same applies to the opposite side, and the guide roller 28 of the starting end guide section 31B is distributed by the device 52.
B, circular movement guide part 32B, upper switching device 50, outer movement guide part 33A, terminal guide part 34A,
Article 56 will be passed to branch conveyor 54A. At this time, the article 56 on the roller 20 climbs over the vertical member 2a supporting the chino 19 and lands on the stepped portion 2c! It transfers to the roller 55 that is being used.

The roller 20 that has reached the end of the end guide portions 34A, 34B as described above is guided by the transport bodies 48A, 48B and reversed, and is then guided by the circular movement guide portions 41A, 41B and moved to the width center portion. Ru. After being sorted into left and right by the lower switching device 51 (described later), they are moved to the outside under the guidance of the outer movement guide parts 42A and 42B, and then are guided by the wheels 47A and 47B and reversed, and then moved to the starting end guide part. 31A.

31B.

During the above-described operation, the upper part of the chino 19 is covered by the cover body 37. That is, as shown by the solid line in FIG.
is engaged with the locking groove 36, and at this time, the receiver is engaged with the portion 36a.
The abutting portion 38a is fitted and abutted against the fitting portion 3.
6b is fitted into the fitted portion 38b, the cover body 37 is supported on the upper frame member 2 side as a horizontal cover function. Therefore, the cover body 37 catches the dust that is about to migrate to the chino 19 side, and it is also possible to prevent the clothes of the worker from getting caught on the chino 19 side. When the operation is stopped to perform maintenance or inspection of the chino 19 or the like, the locked part 38 is released from the locking groove 36 against the elasticity of the elastic holding part 35, and the cover body 37 is removed from the locking groove 36.
In other words, by placing your hand on the inner end of the cover body 37 and rotating it upward, the cover body 37 can be removed while removing the abutment part 38a from the receiving part 36a, as shown by the imaginary line in FIG. Can be removed. At this time, the elastic presser portion 35 deforms upward and outward against its elasticity. The guide bar unit 37 can be installed in reverse order.

Effects of the Invention According to the present invention having the above configuration, the cover body is positioned above the endless rotating body by engaging the locked portion with the locking groove! It can be supported by the main body frame side, thereby catching dust and preventing it from moving to the endless rotating body side, ensuring smooth movement at all times and preventing clothes etc. from getting caught. This will ensure safe work. The cover body can be removed by disengaging the locked portion from the locking groove against the elastic force of the elastic holding portion, and maintenance and inspection of the endless rotating body and the like can be easily performed.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an enlarged vertical sectional front view of the main part, FIG. 2 is a vertical sectional front view of the main part, FIG. 3 is a plan view of the same, and FIG. 4 is a vertical sectional side view of the same. 5 is a schematic plan view of the whole, FIG. 6 is a schematic side view of the same, FIG. 7 is a schematic plan view showing the outward guide body group, FIG. 8 is a schematic plan view showing the return guide body group, and FIG. FIG. 9 is a schematic side view of the same. 1.-Main frame, 2.. Upper frame material, 3..
・Lower frame material, 4... Vertical connection member, 5... Horizontal connection member, 6... Leg body, 7a... Inner upward mounting part), 12... Drive device, 19 ... Cheno (
endless rotating body), 20...roller (guide bar), 21
... Main conveyance route, 22 ... Outbound guide rail, 2
3... Return side guide rail, 25... Movable body, 28
...Guide roller (guided part), 29...Roller shaft, 30...Outward guide body group, 35...Elastic presser part, 36...Latching groove, 36a...Receiver part , 36b...
- Fitting part, 37... Cover body, 38... Locked part,
38a... Abutting part, 38b... Fitted part, 40...
・Return guide body group, 50... Upper switching device! , 51
...lower switching device, 53A. 53B... Branch route, 54A, 54B... Branch conveyor, 55... Roller, 56... Article. Agent Yoshi Morimoto Private map JP Power'J)'n-ra (RLtr Itoto V) Figure Noro 2ρ Figure Haruka

Claims (1)

[Claims] 1. A pair of left and right endless rotating bodies arranged along the main conveyance path, a large number of guide bars installed between these endless rotating bodies and in a direction perpendicular to the main conveyance path, and movable units guided by these guide bars. a body, a guided part provided on the back side of the movable body, and a guide body group for guiding these guided parts;
A switching device arranged at the branching part of these guide body groups,
a main body frame, guide rails for supporting and guiding the endless rotating body are disposed on both upper sides of the main body frame, and locking grooves are formed at the upper ends of both sides with elastic pressing portions at the upper ends; A cover body that can be freely disposed above the endless rotating body is provided, and a locked part that can be freely engaged and detached from the locking groove against the elasticity of the elastic presser part is formed at the outer end of the cover body. A conversion device featuring: