JPH0616324U - Conveyor conveyor - Google Patents

Abstract

(57) [Summary] [Purpose] Both roller and knife-edge methods can be used without major modification according to the conveyed goods, and it is possible to suppress the abrasion of the conveyor belt and other various kinds of goods. To provide a conveyer conveyance mechanism capable of conveyance. A conveyor belt conveying mechanism for winding a belt 1 around two rollers 2 whose both ends are held at front and rear ends of a conveyor frame 7 so as to be stretchable and driving the belt to convey an article. -Recesses 8a and 8b are formed in the front and rear of the upper portion of the holder 8 fitted on the shaft of the roller and roller, and the small-diameter round bar 9 having both ends bent in a U-shape is used as the roller.
The small-diameter round bar 9 is disposed diagonally above and in the axial direction, and the U-shaped end portions of both ends of the small-diameter round bar are positioned in either one of the recesses formed in the front and rear of the upper part of the holder. The conveyor belt transport mechanism is pivotally attached to the holder so as to be rotatable by a predetermined angle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is applied to a delivery mechanism of a conveyor used for transporting machine parts, products and other articles in a production line, an automatic weight sorter, an auto checker, etc. in a factory, especially a gap between conveyor belts. The present invention relates to a conveyor belt transport mechanism that can transfer articles smoothly.

[0002]

[Prior art]

 In the manufacturing line of a factory, etc., in the mechanism that conveys small-sized products by conveyor, in order to make the transition between conveyors smooth, the edge of the conveyor as shown in Fig. 6 (A) is a knife. In the case of the edge system, the gap d between the conveyor belts 30 and 30 is made as small as possible so as to transfer, or in the case of the roller system as shown in FIG. Reduce the diameter of 20, 20. In addition, a so-called "crossover plate" is externally attached to the gap between the conveyor belts to prevent products from being caught in or caught in the gap between the conveyor and the conveyor. When transporting particularly small articles by the conventional conveyor belt system as described above, it is necessary to reduce the roller diameter in the roller system conveyor belt, but there is a limit in the drive surface and strength of the conveyor belt. There is. Further, in the case of the knife edge method, the gap between the conveyor belts can be made smaller than that in the roller method, but the conveyor belt itself is easily worn and weak in strength. Furthermore, in the knife edge method, when it is necessary to convey a wide variety of goods on the same conveyor belt, it is disadvantageous in terms of the life of the conveyor belt to use the knife edge method even for large-sized goods. There will be restrictions on things. Incidentally, as shown in FIG. 6 (C), in the case of the roller system, there is also one in which a roller 50 is separately attached in addition to the roller 40, but the gap d is shown in FIG. 6 (B). -It is not much different from the La method. This is because the roller 50 to be separately mounted has the same limit as that of the roller 20 of FIG. 6 (B) in order to reduce its diameter, so that the clearance is not smaller than that of FIG. 6 (B). Because.

[0003]

[Problems to be solved by the device]

 Changing the conventional roller system to the knife edge system or vice versa requires a great deal of modification, resulting in an increase in cost. In addition, the conveyed articles may dance due to the friction caught on the "walking board" and high-accuracy weighing (for example, an accuracy of several tens of mg is required) cannot be performed, and the conveyed articles may be damaged or fall off the conveyor belt. There is a problem such as fear. The present invention has been made in view of such a problem, and its purpose is to be a roller type or a knife edge type without being significantly modified according to the goods to be conveyed, so that the wear of the conveyor belt can be prevented. It is an object of the present invention to provide a conveyer transport mechanism capable of transporting a wide variety of articles by suppressing such problems.

[0004]

[Means for Solving the Problems]

 That is, in order to solve the above-mentioned problems, the present invention conveys an article by winding a belt stretchably around two rollers holding both shaft ends at the front and rear ends of a conveyor frame and driving the belt. In the conveyor transport mechanism, a small-diameter round bar with both ends bent in a U-shape is formed diagonally above the roller by forming recesses in the front and rear of the upper part of the holder fitted on the shaft of the conveyor frame and roller. Of the small-diameter round bar, and the U-shaped ends of the both ends of the small-diameter round bar are positioned at a constant angle so that the small-diameter round bar is positioned in one of the recesses formed in the front and rear of the upper part of the holder. The holder is pivotally attached to the holder so as to be rotatable.

[0005]

[Action]

 The operation when the conveyor transport mechanism of the present invention is used as the above means will be described with reference to the reference numerals in the attached drawings. First, when carrying an article having a small outer shape, loosen the roller 2 and the roller 2 and rotate the small-diameter round bars 9 and 9 as shown in FIG. 8a, installed so as to be located at 8a. Then, the rollers 2 and 2 are tightened so that the belt 1 has an appropriate tension. In this way, the transfer section of the product becomes a knife-edge type conveyor belt transfer mechanism, which is in a state suitable for transferring small products. Next, when carrying an article having a large outer shape, loosen the roller 2 and the roller 2 and rotate the small-diameter round bars 9 and 9 as shown in FIG. It is installed so as to be located in the recesses 8b and 8b. Then, the rollers 2 and 2 are tightened so that the belt 1 has an appropriate tension. In this way, the transfer section of the product becomes a roller type conveyor belt transport mechanism, which is in a state suitable for transporting a large product.

[0006]

【Example】

 Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a conveyor transporting mechanism of the present invention (in this figure, a conveyor frame 7 and a holder 8 which will be described later are omitted). 2 and 3 are front views of this conveyer mechanism, and FIG. 4 is a view taken along the line XX in FIG. The conveyor belt 1 is wound around the front and rear ends thereof so that the rollers 2 and 2 can be slightly tensioned or loosened, but this mechanism is omitted. A pulley 3 is provided on one side of one of the rollers 2, and the rotational torque is transmitted from the motor 4 via the shaft 4a and the belt 5. Further, the rollers 6 and 6 of the rollers 2 and 2 are penetrated through the center portion thereof, and the shaft 6 is passed through a conveyor frame 7 and locked to a holder 8.

Next, the small-diameter round rods 9, 9 are passed above the end portion of the roller 2, and the small-diameter round rods 9, 9 are bent in a U shape so that both end portions (however, one is The roller 2 is fitted so as to sandwich the roller 2 in the holder 8 installed invisible. Further, recessed portions 8a and 8b are formed at both front and rear ends of the upper portion of the holder 8 so that the upper end portions of the small diameter rods 9 and 9 can be positioned in one of the recessed portions 8a and 8b. That is, the small-diameter round rods 9 and 9 are installed so as to be rotatable by a fixed angle around the position of the holder 8 in which they are fitted.

FIG. 5 is a perspective view of an example showing a method of mounting the small diameter round bar 9. That is, after the small-diameter round bar 9 is slid and fitted into the groove 8c provided in the upper direction of the holder 8, an L-shaped round bar presser 10 is inserted so as to fill the groove 8c and screwed to the holder 8. This screwing can be done from above, and the small diameter round bar 9 can be attached and detached without disassembling the conveyor mechanism.

The structure of the conveyor carrying mechanism of the present invention is as described above. Next, its operation will be described. First, when carrying an article having a small outer shape, loosen the roller 2 and the roller 2 and rotate the small-diameter round bars 9 and 9 as shown in FIG. 8a, installed so as to be located at 8a. Then, the rollers 2 and 2 are squeezed so that the conveyor belt 1 has an appropriate tension. In this way, the transfer section of the product becomes a knife-edge type conveyor belt transfer mechanism, which is in a state suitable for transferring small products. Next, when carrying an article having a large outer shape, loosen the roller 2 and the roller 2 and rotate the small-diameter round bars 9 and 9 as shown in FIG. It is installed so as to be located in the recesses 8b and 8b. Then, the rollers 2 and 2 are squeezed so that the conveyor belt 1 has an appropriate tension. In this way, the transfer section of the product becomes a roller type conveyor belt transport mechanism, which is in a state suitable for transporting a large product.

[0010]

[Effect of device]

 Since the conveyor transport mechanism of the present invention is configured as described in detail above, it also has a knife-edge system that is suitable for transporting small and lightweight objects depending on the items to be transported, and is suitable for transporting large and heavy objects. -La system can be easily changed. Therefore, it becomes possible to handle a wider variety of goods compared to a conveyance mechanism suitable for only one of the methods. Moreover, the knife edge method can be used only when necessary, so that unnecessary wear of the conveyor belt can be suppressed. In addition, even if the conveyor belt mechanism that has already been configured by the roller system is modified to the knife-edge system by adding a small amount of parts, the modification cost and time can be significantly saved. Furthermore, since the small-diameter round bar is mounted concentrically with the center axis of the roller, the knife edge will not be affected even if the roller axis position is moved during belt tension adjustment. Also, since the auto checker does not use a "walking board", problems such as dancing of goods at the transfer section are eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view of a conveyor carrying mechanism of the present invention.

FIG. 2 is a front view of the conveyer mechanism of the present invention in a knife-edge system.

FIG. 3 is a front view when the conveyor system of the present invention adopts a roller system.

FIG. 4 is a view on arrow XX in FIG.

FIG. 5 is a perspective view of an example showing a method of mounting a small-diameter round bar which constitutes the conveyor transport mechanism of the present invention.

FIG. 6 (A) is a simplified view of a knife conveyer system in a conventional conveyor transport mechanism, and FIGS. 6 (B) and 6 (C) are simplified diagrams of a conveyor system in a roller system. .

[Explanation of symbols]

1 Conveyor belt 2 Roller
6 axis 7 conveyor frame 8 holder 8
a, 8b Recessed portion 9 Small diameter round bar

Claims (1)

[Scope of utility model registration request] 1. A conveyor frame in which a belt is wound around two rollers holding both ends of the shaft at the front and rear ends of the conveyor frame so as to be stretchable, and the belt is driven to convey an article. And a small-diameter round bar having a recess formed in the front and rear of the upper part of the holder fitted in the shaft of the roller and having both ends bent in a U-shape, is arranged diagonally above the roller and in the axial direction. The U-shaped end portions of both ends of the small-diameter round bar are pivotally attached to the holder so that the small-diameter round bar can be rotated by a certain angle so that the small-diameter round bar is located in one of the recesses formed in the front and rear of the holder upper part. A conveyor transport mechanism characterized in that