JPH0524652Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an improvement of a belt conveyor.

<Prior Art> A conventional device of this type is as shown in FIG. A frame 33 is provided on the top of a table-like machine stand 32 consisting of four pillars 31, and the frame 3
A drive roller 34 and an idle roller 35 are installed on both the left and right sides of 3, and a conveyor belt 36 is stretched endlessly between both rollers. The drive roller 34 is connected to a motor 38 by a drive belt 37.

<Problem to be solved by the invention> Since the conventional apparatus has the above-mentioned configuration, when replacing the conveyor belt 36, the frame 33 must be removed from the machine base 32 or the rollers 34 and 35 must be removed from the frame 33. 36 could not be removed from the device. However, all of these tasks had the disadvantage that they were laborious, time-consuming, and difficult tasks.

The object of the present invention is to eliminate this drawback and provide a belt conveyor whose conveyor belt can be easily replaced.

<Means for Solving the Problems> In order to achieve this purpose, the present invention is configured as follows.

A frame-like frame is provided at the upper end of a table-like machine base having four pillars, one side of the frame is pivoted to one side of the upper end of the machine base so that it can be opened and closed upwards, and the frame is perpendicular to the pivot side. Side rollers are installed on both sides, a pair of central rollers are installed in the center of the frame in parallel with the side rollers, and a conveyor belt is stretched endlessly around the outer periphery of the side rollers and the central roller. A drive roller that fits between the center rollers on the frame side is installed parallel to the center rollers, and its height is adjusted so that it is positioned above between the center rollers when the frame is closed and in a horizontal state. A belt conveyor.

<Examples> Examples of the present invention will be described below based on the drawings. A conventional conveyor A is shown in Figs. The machine frame 1 is a table-shaped machine frame with four supports 2.
A frame 3 is provided at the top. frame 3
is pivotally connected to the upper end of one side (rear side) of the machine base 1 via a hinge 4 so as to be able to open and close upward. Side rollers 5, 5 are installed facing each other on both sides perpendicular to the pivoting side of the frame 3. Idle rollers 6, 6 are installed between the front and rear of the left and right columns 2. However, this is not necessarily necessary.

A pair of vertical stays 71 and 72 are provided front and back in the vertical direction of the central part of the frame 3, and a pair of central rollers 8 and 8 are installed at the lower ends thereof. One stay 71 can be adjusted in the vertical direction by loosening the fixing bolts. 31, 31 are stays that reinforce the frame 3.

A conveyor belt 9 is stretched endlessly around the outer periphery of the six rollers 5, 5, 6, 6, 8, and 8.

Left and right stays 10, 10 are provided at the front and rear of the machine base 1,
The drive roller 11 is supported by this and attached via a bearing. The driving roller 11 is parallel to the six rollers 5, 5, 6, 6, 8, 8, and when the frame 3 is in a horizontal state, the central roller 8,
It will be constructed so that it is located above the 8th floor. The drive roller 11 is connected to a motor 12 disposed at the bottom of the machine base 1 via a belt 13. 14 is a conveyor belt 9
It is a support plate that supports the from below.

Next, we will explain how to use and operate this device. When in use, the frame 3 is closed and placed in a horizontal position as shown in FIG. When in the horizontal state, the conveyor belt 9 is stretched upward by the drive roller 11 and becomes tense. When the motor 12 is started and the drive roller 11 is driven, the conveyor belt 9 in a tensioned state moves in a fixed direction. frame 3
When an object is placed on the conveyor belt 9, the object is conveyed toward the belt by the movement of the conveyor belt 9.

When the conveyor belt 9 becomes damaged as a result of long-term use, one side of the frame 3 is lifted upward and opened as shown in FIG. Then drive roller 1
Since the tension caused by 1 is eliminated, the conveyor belt 9
is greatly loosened. Therefore, the conveyor belt 9 can be easily pulled out and removed from the apparatus without moving any rollers or the like. After the replacement belt is attached in the same manner, when the frame 3 is lowered, it is pulled upward by the drive roller 11, and the conveyor belt 9 becomes taut. Start the motor 12 and put it into operation.

FIG. 3 shows a long conveyor B with a long conveyance distance as another embodiment. One side of frame 3 (left side)
Connect the spare frame 21 to the long frame 2.
Set it to 2. This is supported by the lower frame 23, and similarly to the first embodiment, it is pivoted to the upper end of one side (rear side) of the lower frame 23 via a hinge (not shown) so that it can be opened and closed upward. If it is long, narrow the frame width. The rest is the same as in the first embodiment, so the explanation will be omitted.

<Effects> Since the present invention is constructed as described above, if one side of the frame is lifted upward, the conveyor belt will loosen significantly. When the frame is lowered to a horizontal position, the belt is greatly tensioned by the drive rollers, so the conveyor belt becomes taut even without any intervention. Therefore, the conveyor belt can be easily attached and detached by simply opening and closing the frame without moving any rollers or the like. This is a major advantage in solving the drawback of conventional belt conveyors that it is difficult to replace the belt.

Note that this configuration can be used not only for belt conveyors but also for other belt tensioning devices.
Needless to say.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the belt conveyor of the present invention, Fig. 2 is a perspective view showing the same device with one side of the frame lifted (however, the conveyor belt is omitted), and Fig. 3 is another embodiment. FIG. 4 is a front view showing an example of a conventional belt conveyor. 1... Machine stand, 2... Support, 3... Frame, 5
... Side roller, 71, 72 ... Vertical stay, 8
... Central roller, 9 ... Conveyor belt, 11 ... Drive roller, 12 ... Motor, 13 ... Drive belt, A ... Ordinary conveyor, B ... Long conveyor.

Claims (1)

[Scope of utility model registration request] A frame-like frame is provided at the upper end of a table-like machine base having four pillars, one side of the frame is pivoted to one side of the upper end of the machine base so that it can be opened and closed upwards, and the frame is perpendicular to the pivot side. Side rollers are installed on both sides, a pair of central rollers are installed in the center of the frame in parallel with the side rollers, and a conveyor belt is stretched endlessly around the outer periphery of the side rollers and the central roller. A drive roller that fits in the center of the frame and between the center rollers on the frame side is installed parallel to the center rollers, and installed so that its height is set above the center rollers when the frame is closed and in a horizontal state. A belt conveyor.