JPH0421753Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a hanger stopper device in a hanger conveyance system.

[Prior Art] Hanger conveyance systems, in which articles are conveyed by a hanger suspended from an overhead rail by a support pulley and directly engaged with a circulating belt, are widely used in, for example, garment factories.

In the case of these hanger conveyance systems in garment factories, it is necessary to stop the hanger independently at the sewing machine station of each sewing process in order to receive the sewn product work conveyed from the upstream station, and usually the stopper is It is practiced to temporarily stop the movement of the object by bringing it into contact with the object. However, in such a method, even when the hanger is stopped, the circulation belt for driving the hanger is still running, so the carrier's main plate remains in contact with the belt and slides even during the stop period. This not only causes heat generation, wear, damage, etc. between both contact members, but also causes a loss of running power of the belt. If each succeeding hanger collides with and stops the first hanger, this tendency will be further exacerbated.

In order to improve the above-mentioned drawbacks, various proposals have been disclosed in the past. An example thereof is shown in FIGS. 2 to 4 (see Japanese Patent Laid-Open No. 54-47290).
FIG. 2 is a perspective view of one essential part of a pair of hanger legs forming a hanger unit, FIG. 3 is a plan view thereof, and FIG. 4 is an explanatory view of the operation. 3 is a ceiling rail (overhead rail), 4 is a roller (support pulley),
Reference numeral 5 indicates a hanger leg pivotally supported by a roller; 7 indicates a circulating flat belt; 8 indicates a pressing member (mass plate) attached to the hanger 5 via a rod 9 so as to press against the belt 7 by a spring 10; 11 12 is a horizontal bracket fixed to the hanger 5, 12 is a stopper fixed to this bracket 11, and 13 is a horizontal bracket fixed to the hanger 5.
This is a washer fixed to the rod 9. Also, 14 is
A lever is pivotally supported on a bracket 11 by a pin 15, and one end 16 is bifurcated and connected to a rod 9.
The other end is connected to another hanger unit H2.
The equivalent lever 14-1 (FIG. 4) extends so as to come into contact with it. 17 is Natsu.

In FIG. 3, when lever 14 is pushed by lever 14-1 of another subsequent hanger unit H2, lever 14 rotates around pin 15 in the clockwise direction in the figure, causing rod 9 to resist the force of spring 10. The present invention is designed to prevent the heat generation by activating the pressing member 8 to separate it from the contact surface of the belt 7.

[Problem that the invention attempts to solve]

However, in the prior art as described above, as shown in FIG.
is provided with a pressing member 8 that is interlocked with the lever 14 on the upstream side and pressed against the belt 7, and a pressing member 8a that is interlocked with the lever 14a on the downstream side and pressed against the belt 7,
The hanger unit H1 is conveyed by the conveying force of the belt 7 due to the frictional force of the two pressing members 8, 8a pressed against the belt 7. When the lever 14 on the upstream side comes into contact with the stopper S, the pressing member 8 on the upstream side separates from the contact surface of the belt 7. In order to maintain the pressing member 8 away from the belt 7, is the downstream pressing member 8
This is because there is a force pushing the hanger unit H1 upstream due to the frictional force of the belt 7 pressed against the belt 7. Therefore, even when the hanger unit H1 is stopped by the stopper S, the downstream pressing member 8a is stopped in pressure contact with the belt 7, and the belt 7, which moves continuously with the pressing member 8a, is stopped. There were problems such as heat generation and abrasion occurring between the belt 7 and the belt 7, and the frictional force in this area becoming a load on the drive source for driving the belt 7, resulting in power loss.

Furthermore, in order to solve the above problem, when the lever 14a on the downstream side and the pressing member 8 are removed, the lever 14 comes into contact with the stopper S due to the inertia force during movement of the hanger unit H1, and once the pressing member 8
is separated from the contact surface of the belt 7, but when the inertia force disappears, the lever 14 is moved by the elastic force that presses the pressing member 8 against the contact surface of the belt 7 with a strong force.
is rotated in the opposite direction, and the pressing member 8 is pressed against the belt 7 again.
While the hanger unit H1 is stopped by the stopper S, this operation is repeated, causing problems such as generation of frictional heat, wear, and power loss.

This idea was devised in view of the above-mentioned problems, and is configured so that when the hanger comes into contact with the stopper, the pressing member (masatsu plate) is mechanically released from the belt contact surface. The purpose is to minimize the heat generation, wear, power loss, etc.

[Means for solving problems]

Therefore, in this invention, a movable member equipped with a front plate that contacts the circulating belt is attached to the carrier body of the hanger so that it can be elastically displaced in the contact direction, and a stopper is provided upstream of the conveyance path of the hanger. By forming an upwardly sloped surface on which a part of the movable member slides in contact with the carrier body at a portion just before the carrier body contacts the stopper, the sliding surface is prevented when the carrier stops. The member is designed to cut off contact with the running belt surface.

〔Example〕

This invention will be explained below based on examples.
FIG. 1 is a top view of the main part of an embodiment of the stopper device according to this invention, and FIGS. 5a and 5b are front (partially sectional) views of the main part of the hanger device of FIG. This is a view taken along line B-B.

First, in FIGS. 5a and 5b, 20 is an overhead rail, 21 is a circulating belt, and in this embodiment, the rail 20 is a round bar member with a circular cross section.
The belt 21 uses a V-belt. Furthermore, the rail 20 is constructed in a closed loop form via a plurality of support legs 30 from a frame 29 of the system made of a lip steel member. V-belt 21
is driven in circulation along the rail 20, and the belt 21
The inner slope of the loop is supported by a plurality of guide rollers 24. On the rail 20, a required number of hangers 25 are suspended and supported by pulleys 27 in carriers 26, and one or more sewn product works W are held at the lower ends of the hangers 25 via clamps 28. ing. Inside the loop of the rail 20, sewing machine stations for each sewing process are arranged on the floor along the rail.

The pulley 27 is connected to the carrier body side plates 26a and 26b.
It is pivoted on. A hinge 3 is attached to the lower end of the side plate 26b.
1 is provided and a movable body 32 of a plate member extending upward.
is pivoted. A gusset plate 33 is fixed to the upper part of the movable body 32 facing the V-belt 21. This mast board 33 has a deformed lip-shaped cross section, and one hole is bored in each of the lip parts on the opposite side to the mast surface, and the carrier It is attached to the main body side plate 26a so as to be elastically rotatable about a hinge 31. In the normal operating state of the carrier 26, that is, the hanger 25, the main plate 3
3 is pressed against the top surface of the V-belt 21 by the elastic force of the spring 35 within an appropriate range.

A projection P is fixedly provided at the lower part of the movable body 32 and comes into sliding contact with an inclined surface of a separate stopper, which will be described later. Further, in the figure, reference numeral 37 denotes a hanger swing limiting roller that is pivotally supported by a bracket 36 fixed to the inner surface of the main body side plate 26a and comes into contact with the side surface of the frame 29. Furthermore, both side plates 26 of the carrier body
A front plate 2 that connects a and 26b at their front parts.
A cushion rubber R is fixedly provided on 6c to come into contact with a stopper surface of a separate stopper, which will be described later.

Next, in FIGS. 1a and 1b, 29a is a stopper mounting base mounted on the frame 29 so as to be easily movable in the direction along the rail 20 (the mounting means is not particularly shown). Stopper body 4
0 is attached to the hanger travel area along a pair of guides 43 by a pneumatic cylinder 41 and a piston rod 42 so as to be freely retractable (40a indicates the retracted position), and has a stopper surface S that comes into contact with the cushion rubber R of the carrier. , an inclined surface T having an upwardly inclined angle α is formed in the direction of the stopper surface S which makes sliding contact with the protrusion P on the movable body 32.

Next, the effect will be explained. While the hanger 25 is being normally driven in the direction of the arrow in the state shown in FIGS. , the protrusion P on the movable body 32 contacts the inclined surface T immediately before the cushion rubber R of the carrier contacts the stopper surface S,
As the carrier continues to move forward due to running inertia, the movable body 32 rotates around the hinge 31 via the projection P due to the upward slope, and the contact between the sliding plate 33 and the belt 21 is cut off, and the cushion rubber R It stops at the position where it comes into contact with the stopper surface S. Uphill slope T
Since the angle of is small (approximately 7°) and the sliding section is extremely short, it is possible to reach the stopper surface S by coasting due to the inertial force determined by the transport speed and mass of the hanger under general conditions. It has also been confirmed experimentally.

Therefore, from the time the hanger stops until the next time the stopper is retracted to start conveyance again, there is no wear and tear or power loss due to excessive heat. Furthermore, by providing a simple moving device that does not require tools, this stopper device can be disposed and moved as a unit to any desired position, allowing for a sewing machine-centered layout in a sewing factory.

In the above embodiments, a combination of a V-belt and a circular cross-section rail was adopted, and the case where the belt was disposed above the rail was explained. It goes without saying that the present invention can be applied to these inventions without being limited to those of this embodiment.

[Effect of idea]

As described above, this invention moves the stopper 40 into the travel path of the protrusion P, engages the protrusion P with the slope T, rotates the movable body 32, and separates the masonry plate 33 from the circulating belt. Since the carrier is configured to be brought into contact with the stopper surface to stop the carrier, when the carrier is stopped, the stop plate 33 is completely separated from the circulation belt, and
The force that presses the mating plate 33 against the circulation belt is received by the protrusion P coming into contact with the slope T.
Since the gusset plate 33 is kept separate from the circulation belt, the sieve plate 33 does not repeatedly come into contact with and separate from the circulation belt when the carrier is stopped, and the sieve plate 33 is constantly circulated. Since it is kept separate from the belt, it has the effect of preventing heat generation and abrasion of the mating plate and circulation belt part when the carrier is stopped, and also reduces power loss in the circulation belt drive source. .

In addition, in this invention, the carrier, which runs with inertia force, touches the stopper surface when the protrusion P gradually moves away from the circulation belt due to the inclination T, and the inertia force also gradually decreases. Since they stop in contact with each other, the noise when the carrier is stopped is small, the swinging of the clamp 28 portion is also reduced when the carrier is stopped, and the work efficiency is improved.

[Brief explanation of drawings]

FIG. 1 is a top view of essential parts of an embodiment of a stopper device according to this invention, FIGS. 2 to 4 are explanatory diagrams of an example of a conventional stopper device, and FIGS. 5a and b
1A and 1B are a front (partially sectional) view of a main part of the hanger device of FIG. 1 in a state in which the support rails are engaged, and a view taken along the line B-B, respectively; FIG. 20...Rail, 21...V belt (circulating running belt), 25...Hanger, 26...Carrier,
26a, 26b...carrier body side plate, 26c...
...Carrier main body front plate, 27... Pulley, 29...
Frame, 29a... Stopper mounting base, 32...
...Movable body, 33...Masatsu plate, 40...Stopper body, 40a...Stopper body (retracted position),
41...Pneumatic cylinder, P...Protrusion, R...Cushion rubber, S...Stopper surface, T...Upper slope surface.

Claims (1)

[Claims for Utility Model Registration] A circulating belt 21 that is supported by a frame 29 and constantly moves; a support leg 30 whose base is fixed to the frame 29 and supports the rail 20 at a free end on the side of the frame; and a top of the rail 20. a carrier 26 having a pulley 27 capable of moving; one end rotatably supported with respect to the carrier;
A movable body 32 supporting a mating plate 33 that presses against the circulation belt at the other end, a protrusion P provided on the movable body, and a slope T and a stop surface S facing the travel path of the protrusion P are formed. , a stopper 40 that is movable in and out of the travel path of the protrusion P, and a moving means for moving the stopper in and out of the travel path of the protrusion P, the moving means moves the stopper within the travel path of the protrusion P. By moving the movable body 32, the slope T and the protrusion P engage with each other, causing the movable body 32 to rotate, separating the mounting plate 33 from the circulating belt, and causing the carrier to come into contact with the stopper surface and stop the carrier. Features a hanger stopper device for the hanger conveyance system.