JPH09110130A - Flexible shaft driven small size belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To switch the belt rotating direction to the normal/reverse direction without causing any trouble in a small space and to facilitate alteration of conveying length. SOLUTION: An endless belt 19 is suspended between a drive roller and a tailpiece roller in a split type machine frame, a flexible shaft 23 is directly connected to the drive roller. Therefore, no installation space is required for a gear, a transmission, and the like, so that the belt rotating direction can be switched to the normal/reverse direction without causing any trouble.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to improvements in portable small belt conveyors.

[0002]

2. Description of the Related Art Portable small belt conveyors are used today.
This machine is extremely widely used in press machining and is essential for short-distance transportation and inclined transportation. In other words, this portable small belt conveyor is the most widely used machine as a conveyor, and can be used as a workbench for the assembly line of a manufacturing plant or as a transport machine in a plant to transport parts of machinery or bulk materials such as boxes. It has various excellent characteristics when used for. However, it is inevitable that the conventional belt conveyor is structurally complicated, and it is difficult to use the equipment easily in a narrow space because of its light weight and small size.

[0003]

Therefore, the inventor of the present application has
In order to solve the above problems, we have already researched and developed the following portable small belt conveyor. The gist of the invention is a small belt conveyor having an endless belt stretched between a head belt wheel and a tail belt wheel at both ends of a frame and having at least a drive mechanism connectable to a power unit or a motion conversion device, An end-to-end belt of a small-sized belt conveyor is provided with a roll-in prevention device provided with a recessed portion having a sloped chute so as to lead to the outside from a side surface through hole in a part of a belt guide that supports and guides the upper side. It is a portable small belt conveyor. However, the above-mentioned conventional belt conveyor is structurally complicated and large in size due to the presence of gears, transmissions, etc., occupying a lot of space and difficult to use. Further, conventionally, when the belt rotating direction is changed in the opposite direction, dust and foreign matters are apt to be clogged, and troubles are prevented, and the driving device becomes large and complicated, and it is difficult to make the device compact. An object of the present invention is to enable the belt to rotate in the normal direction without requiring a space for disposing gears, transmissions, etc., and without causing troubles due to dust or foreign matters.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its gist is to provide a split type machine which can be separated in the front-rear direction at arbitrary intervals by an intervening separator. An endless belt is stretched between a drive roller and a tail roller of a frame, and a flexible shaft is directly connected to the drive roller. Next, the present invention will be described in detail with reference to the following embodiments with reference to the drawings.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, in FIG. 3, reference numeral 1 is a groove-shaped machine frame in which side flanges 1b each having a plurality of elongated holes 2 at appropriate intervals are provided on both left and right sides of a web 1a. At the front and rear edges of the channel machine frame 1, there are respectively provided entanglement prevention devices 3 in which a dust removing material is fitted in a frame frame 4. Next, in FIG. 4 at 5a, the front cylindrical portion 11a is formed by the left and right side rods 6a, 6a each having a plurality of stop pin holes 7a each having an arm bearing 8a at the front end, and the upper and lower plates 9a, 10a. It is the machine frame member on the front side. Further, 5b is a left and right side rod 6 provided with a plurality of stop pin holes 7b each having an arm bearing 8b at the rear end.
b, 6b and the upper and lower plates 9b, 10b are rear machine frame members that form a rear cylindrical portion 11b. The front and rear machine frame members 5a and 5b having the above-described structure constitute a split type machine frame 5 which can be separated in the front-rear direction at arbitrary intervals by interposing a separator 16 described later. Furthermore, 12a has 2 at the rear end.
Separator 1 consisting of two protruding shafts 14 and two spacer screws
6 is a front side core plate member having a plurality of screw holes 13a on the left and right side surfaces. Further, 12b is a rear side core plate member having a plurality of screw holes 13a on the left and right side surfaces, each of which has two fitting holes 15 corresponding to the protruding shaft 14 at the front end. And, the front and rear core plate members 12a and 12b having the above-mentioned configuration,
The protruding shaft 14 is fitted in the fitting hole 15, and the split type core plate 12 is configured to be separable in the front-rear direction at an arbitrary interval by adjusting the separator 16 interposed therebetween. Therefore, the front-and-rear core plate member 1 is formed in a predetermined length by separating the separator 16 in the front-rear direction by an adjusting operation.
The split type core plate 12 composed of 2a and 12b is attached to the front and rear cylindrical portions 11a and 1 of the split type machine frame 5 which are formed of the front and rear machine frame members 5a and 5b.
Insert and set in 1b. (At this time, as shown in FIG. 3, the upper belt guide 17 is attached to the upper plates 9a and 9b of the split type machine frame 5.
The lower belt guide 18 to the lower plates 10a, 10
The frame is set by attaching each to b. ) Then, the front and rear arm bearings 8a, 8b of the split type machine frame 5
The endless belt 9 is stretched between the drive roller 21 and the tail roller 22, which are respectively supported by the above. The assembly main body A set as described above is housed in the grooved machine frame 1 and divided from the outside through the long hole 2 of the grooved machine frame 1 and the stop pin holes 7a, 7b of the split type machine frame 5, respectively. Type core plate 1
A set screw 20 screwed into the two screw holes 13a and 13b completes the assembly and setting. (See FIGS. 1 and 2) The present invention is characterized in that the flexible shaft 23 is directly connected to the drive roller 21 as shown in FIG.

[0006]

According to the present invention, since the flexible shaft is directly connected to the drive roller, a gear, a transmission, etc. are not required, the structure is compact and downsized, and space is not taken up. It's easy. Further, according to the present invention, since space for gears, transmissions, etc. is not required, no trouble is caused due to clogging of dust and foreign matters, and therefore the belt can be rotated in the forward and reverse directions.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a belt conveyor of the present invention.

FIG. 2 is a vertical sectional front view of the belt conveyor of the present invention.

FIG. 3 is an assembly view of an assembly main body of the present invention.

FIG. 4 is an exploded view of essential parts of an embodiment of the present invention.

5 is a perspective view showing another embodiment using the loosening prevention plate spring of FIG. 4;

FIG. 6 is a cross-sectional view of FIG.

[Explanation of symbols]

 1 Groove machine frame 1a Web 1b Flange 2 Long hole 3 Entrainment prevention device 4 Frame frame 5a, 5b Machine frame member 6a, 6b Side rod 7a, 7b Stop pin hole 8a, 8b Arm bearing 9a, 9b Upper plate 10a, 10b Lower plate 11a Front cylinder part 11b Rear cylinder part 12 Split core plate 12a, 12b Core plate member 13a, 13b Screw hole 14 Projection shaft 15 Fitting hole 16 Separator 17 Upper belt guide 18 Lower belt guide 19 Endless belt 20 Set screw 21 Drive Roller 22 Tail roller 23 Flexible shaft A Main assembly

Claims (1)

[Claims] 1. An endless belt 19 is stretched between a drive roller 21 and a tail roller 22 of a split type machine frame 5 which can be separated in the front-rear direction by an intervening separator 16, and a flexible shaft 23 is directly attached to the drive roller 21. Flexible belt driven small belt conveyor.