JPH072323U - Reverse trolley conveyor - Google Patents

Abstract

(57) [Abstract] [Purpose] There is no need to hang the building, and oil, dust, etc. falling from the trolley rail may cause
(EN) Provided is a trolley conveyor which does not have a possibility of contaminating a product and whose layout can be easily converted. [Structure] Two trolley rails are laid substantially parallel to each other on the floor, and a chain element of a trolley chain 4 traveling in one rail 1 is spaced apart in its longitudinal direction and via a pin 7. The product hanger pole 6 is erected upward, and a support arm 11 swingable around the longitudinal axis of the pole is pivotally supported so that the pole always maintains a vertical direction. Reverse trolley conveyor consisting of connecting the other end to a follower wheel 9 moving in the other rail 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a trolley conveyor that is installed in a space in a factory and hangs assembly parts, works and the like and conveys them in a process order.

[0002]

[Prior art]

 In an assembly plant that performs so-called flow work, generally, a workpiece is transported at a constant speed or intermittently for each unit line, and the required processing is performed on the workpiece in each section of the workpiece transfer path. In many cases, the layout is carried out or assembled to form a finished product at the transport end of the line. In that case, it is usually necessary to provide a conveyor for sequentially transferring the required assembly parts, accessories, etc., at a timely interval for the transferred work.

Conventionally, as shown in FIG. 4 (b), this type of manufacturing line has a trolley rail 1 that is equipped with a beam member 18, a brace member 19, and a hanging member 20 that constitute the ceiling space of a factory building. Along the trolley chain 4--The chain is universal and can be vertically, horizontally, and three-dimensionally run-is mounted so that it can travel freely, and at an appropriate pitch along the longitudinal direction of the trolley chain ( (About 150 mm), attach the hanger 21 to the elements that make up the chain, suspend and convey the required work, assembly parts 17, etc., and work in the work transfer route in the section that requires processing. Install the trolley conveyor at a low position so that the work can be lowered to a height that facilitates the work, and if it is not necessary, or if the work being transferred does not harm the worker, as necessary. It is high established the position of the turbocharger.

FIG. 4 (a) is a perspective view showing a part of the trolley rail 1 in FIG. 4 (b), that is, a part of the trolley conveyor of the conventional device, in which 1 is a lower side. A trolley rail 2 having a rectangular cross section having a guide groove is a wheel pivotally supported by a chain 4 running inside the trolley rail, and rolls inside the rail and on the upper and lower wall surfaces. Similarly, reference numeral 3 is an auxiliary wheel, which is provided so as to roll on the inside and left and right wall surfaces of the trolley rail. The arrow indicates the traveling direction of the trolley conveyor.

In this type of trolley conveyor, the main rail is generally installed above the work to be conveyed and other assembly parts, and the trolley conveyor is guided along the main rail, so that the conveyor is often used. Lubricating oil splashes adhere to the work and contaminate it. If the constituent materials of the main rail and trolley conveyor are iron-based materials, the iron powder generated by the moving wear of the trolley conveyor will pollute the atmosphere and works in the factory.

Even if a dust protection device for this purpose is applied, it cannot be said to be perfect, and product defects due to dust will occur. The construction of the trolley conveyor requires suspension work from the ceiling of the building (work at high places), which requires labor. Maintenance, inspection and maintenance of the trolley conveyor are troublesome. It is not easy to change the layout of the production line with the trolley conveyor.

There are some inconveniences.

[Problems to be solved by the device]

 Therefore, the conveyor of the present invention provides an inverted trolley conveyor in which the above-mentioned problems inherent in the conventional apparatus are all solved by laying the trolley rail in the conventional ceiling-mounted trolley conveyor on the floor side. It is intended for.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has the respective constituent elements described below. (1) A main rail laid on the floor, a follow-up rail that is set substantially parallel to the main rail, a trolley chain guided by the main rail, and a trolley chain swayed at appropriate places via hinges. The hanger pole that is movably fixed and extends substantially orthogonal to the moving direction of the trolley chain, and the other end of the supporter arm that is rotatably fitted to the extension shaft of the hanger pole are guided by the follow-up rail. The reverse trolley conveyor is characterized in that the extension shaft of the hanger pole is always held in the vertical direction during movement by the guide of the supporter arm.

(2) A follow-up rail set substantially parallel to the main rail on the floor surface is set so as to enter the ascending stroke slightly earlier than the position at which the main rail enters the ascending stroke. The reverse trolley conveyor according to the above-mentioned item 1, wherein the reverse trolley conveyor is installed so that the vehicle enters the down stroke from a position slightly earlier than the position where the arrow enters the down stroke.

[0010]

[Action]

 When the trolley conveyor is driven by the main rail laid on the floor, the trolley conveyor is oscillated via a pin provided in parallel with the connecting pin of the chain on the mounting base fixed to one of the chains forming the conveyor. The hanger poles, which can be coupled to each other, also move along the main rail, but in this case the direction of the pins always remains orthogonal to the transport direction of the conveyor. Therefore, although the longitudinal (extension) axis of the hanger pole can be swung in the plane orthogonal to the pin, the hanger pole can be fitted to the base of the pole to rotate about the pole longitudinal axis. The other end of the arm is guided by a follow-up rail installed substantially parallel to the main rail to restrain the swinging motion in the plane of the longitudinal axis of the hanger pole.

For example, when the laying height position of the main rail and the laying height of the follower rail are relatively the same, the swing angle of the pole longitudinal axis is zero, that is, the vertical direction is maintained. At this time, even if the rail spacing between the main rail and the following rail changes slightly, the error is absorbed by the rotation of the support arm around the pole longitudinal axis, which affects the vertical posture of the pole. It has no effect. When the main rail changes direction in the ascending direction, if the follower rail at the other end position of the support arm of the relevant pole at the time when the hanger pole is located at that conversion point is also arranged to change the direction in the ascending direction, The vertical direction of the pole can be maintained.

On the contrary, when the main rail is set in the descending direction, the following rails are also changed in direction in the descending direction and arranged. Attach multiple arms to the hanger pole and hang the required assembly parts, work, etc. here, or fit a transport table equipped with multiple poles and hang the desired parts here. It may be lowered and conveyed. The configuration of the reverse trolley conveyor of the present invention is as described above.

Since the guide rails of the trolley-conveyor are installed along the floor surface, there is no problem of contamination of products such as dust and dirt due to running, vibration or wear of the trolley-conveyor. Since the guide rail and trolley conveyor equipment are installed on the floor side, construction is easy. Therefore, it is possible to respond extremely easily and quickly, such as relocating the parts transportation trolley conveyor when the manufacturing line is changed. It is easy to route products from the 1st floor to the 2nd floor, and it has the effects and advantages.

[0014]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. The structure of each member constituting the present embodiment is arbitrarily modified by those skilled in the art within the technical level in the industry at the time of the application. Since there is room to do so, the gist of the present invention should not be interpreted in a limited manner based on only the specific structure of this embodiment without showing any special reason.

FIG. 1 is a partially cutaway perspective view of an embodiment of the reverse trolley conveyor of the present invention, FIG. 2 is a partial sectional view of another embodiment, and FIG. 3 is a view of the trolley rail of the present invention. An example is shown respectively. In FIGS. 1 and 2, reference numeral 1 denotes a main (trolley) rail having a rectangular cross-section with a guide groove on the upper surface, which slides along the inner wall of the rail 1 without a gap and is axially supported by the vertical and horizontal axes, respectively. A trolley chain 4 consisting of a series of chain elements with each pair of wheels 2 and auxiliary wheels 3 is arranged in the main rail 1 so as to be movable in its longitudinal direction, as indicated by the arrow. The capacity of the trolley chain is, for example, 5 Ton type (tension of 500 Kg or less).

The main rail 1 is laid endlessly on the floor of the workplace or in the area where the transportation of parts or products is required, and the trolley chain 4 arranged in the main rail is endless. If a part or a plurality of parts of the trolley chain 4 are synchronously driven by a sprocket (not shown), the trolley chain 4 can travel synchronously over the entire line of the main rail 1. . A mounting base 5 is fixed to one of the chain elements constituting the trolley chain 4, and a part of the mounting base is protruded from the guide groove of the main rail 1 to the upper outer side. The upper end of the base 5 has a pole member 6 The lower end of the pole 6 is connected via a pin 7, and the pole 6 can swing in a vertical plane including the main rail 1. The mounts 5 are provided along the longitudinal direction of the trolley chain 4 at a pitch of 150 mm, for example.

Reference numeral 8 is a follow-up rail laid substantially parallel to the main rail 1, and its structure is the same as that of the main rail 1. However, inside the follower rail 8, only the follower wheel 9 having substantially the same shape as the vertical wheel 2 in the main rail 1 travels. A member 10 corresponding to the mount 5 of the trolley chain 4 is also attached to the car bearing portion of the follower wheel 9, and the upper end of the member 10 projects from the guide groove of the follower rail 8 toward the upper outer side. A support arm 11 is provided by connecting the upper end of the member 10 and the pole 6 described above. The support arm 11 and the pole members 6 and 10 are coupled to each other by shaft couplings 12 and 13 each having a pillar member as an axis.

Therefore, assuming that the trolley chain 4 is stopped in the main rail 1, the member that maintains the vertical direction of the pillar member 6 in the vertical plane including the main rail 1 is the support arm 11 And its function is determined solely by the arrangement of the follower wheel 9 and the member 10 relative to the installation position of the main rail 1, that is, the installation position of the follower rail 8. However, since the pillar member 6 and the follower wheel 9 and the member 10 are connected by the support arm 11, the traveling of the follower wheel 9 on the inside of the rail 8 is not restricted by any other parts. The relationship of (2) remains unchanged even when the trolley conveyor 4 is traveling in the main rail 1.

In this embodiment, the support arm 11 is bent and formed in an L shape in a plan view, but the same effect can be obtained even if the support arm 11 is straight. 14 is a product hanger fitted to the pillar member 6, and 15 is a product hanger of another embodiment. Reference numeral 16 is a spring pin, which is a hanger fixing member.

FIG. 3 shows a row of rail arrangements in the present embodiment, (a) of which is a side view of an elevating / conveying portion of the trolley rail, in which the support arm 11 is located downstream of the trolley chain 1 in the traveling direction. If the longitudinal axis of the pillar member 6 provided with the hanger is to be maintained in the vertical direction when it is extended to the side (the follower wheel 9 can be moved so as to be pulled), the rising change of the main rail 1 It indicates that the ascending inflection point of the follow-up rail 8 must be provided earlier by the arm length of the support arm 11 than the inflection point, and it must be formed on the opposite side when descending. In the figure, 17 indicates the product / part, and the arrow direction indicates the traveling direction of the trolley conveyor.

FIG. 3B shows a plan view of an example of the curved laying portion of the trolley rail, in which 1 is the main rail and 8 is the follow-up rail arrangement. The details of the operation and operation of this embodiment have been described in the section [Operation] above, and will not be repeated here.

[0022]

[Effect of device]

 Since the present invention is configured as described above, since the guide rail of the trolley conveyor is installed on the floor side, the product is free from contamination problems such as dust and dirt due to the drive, wear, and vibration of the conveyor. Does not happen. Since the guide rail and trolley conveyor equipment are installed on the floor side, construction is easy. Therefore, it is possible to respond extremely easily and quickly, such as relocating the parts transportation trolley conveyor when the manufacturing line is changed. It is easy to route products from the 1st floor to the 2nd floor, and so on. It has special actions and effects that cannot be expected from conventional devices.

[Brief description of drawings]

FIG. 1 shows an embodiment of a reverse trolley conveyor according to the present invention.
A perspective view with a part cut away

FIG. 2 is a partial cross-sectional view of another embodiment of the inverted trolley conveyor according to the present invention.

FIG. 3 is a partial side view and plan view of an embodiment of the trolley rail of the present invention.

FIG. 4 is a perspective view showing a part of a conventional device with a part cut away and a side view of a trolley rail.

[Explanation of symbols]

 1 Main Rail 2 Wheels 3 Auxiliary Wheels 4 Trolley Chain 5 Mounting Base 6 Pole Member 7 Pins 8 Tracking Rail 9 Tracking Wheel 10 Member 11 Support 12 Shaft Coupling 13 Shaft Coupling 14 Product Hanger 15 Different Product Hanger 16 Spring Pin 17 Products / Parts .

Claims (2)

[Scope of utility model registration request] 1. A main rail laid on a floor surface, a follower rail set substantially parallel to the main rail, a trolley chain guided by the main rail, and a hinge at an appropriate position of the trolley chain. And the other end of the supporter arm rotatably fitted to the extension shaft of the hanger pole, the hanger pole being fixed so as to be swingable and extending substantially orthogonal to the moving direction of the trolley chain. The reverse trolley conveyor, characterized in that the extension shaft of the hanger pole is always held in the vertical direction during movement by the guide of the supporter arm. 2. A follow-up rail set substantially parallel to the main rail on the floor so that the main rail enters the ascending stroke slightly earlier than the position at which the main rail enters the ascending stroke, and the main rail descends. 2. The inverted trolley conveyor according to claim 1, wherein the inverted trolley conveyor is laid so as to enter the descending stroke from a position slightly earlier than the entry position.