JPH038679Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention generally relates to an iron drum assembly device, and in particular, to an iron drum used in assembling a prefabricated iron drum for winding electric wires such as power transmission lines and telephone lines. Regarding assembly equipment.

BACKGROUND OF THE INVENTION Among iron drums used for winding electric wires such as power transmission lines and telephone lines, so-called assembled iron drums have conventionally been assembled using the process described below. Figures 9 to 12 show the assembly process of such a prefabricated iron drum. is body plate 19
FIG.
a step of transporting the first collar plate 17 from the above-mentioned mount 21 to the workshop and assembling it to the body plate 19;
Furthermore, FIG. 12 illustrates the steps for raising the assembled iron drum.

Problems to be Solved by the Invention As is clear from the above-mentioned figures, there are two steps in each of the four steps.
The process is carried out manually by 3 to 3 workers. That is, as shown in FIG. 9, the first flange plate 17 is mounted on the frame 21 shown in FIG.
The process of transporting from the top to the top of the square timbers 23, 23 in the workshop, and the process of transporting the body plate 19 as shown in FIG.
(shown in FIG. 8) is transported from the stand 21 to the workshop and assembled into a cylindrical shape, and then the flange plate is assembled by using fastening members such as bolts and nuts, or by welding at necessary locations. The first two steps of the process of assembling the first
As shown in FIG. 1, the second flange plate 17 is moved from the frame 21 to the body plate 19 shown in FIG. 10.
The final two steps, the assembling step and the raising step of the iron drum 25 after assembly shown in FIG. 12, are carried out by three workers. The above-mentioned work process is difficult because the weight of one piece of the collar plate 17 is on the order of 150 kg at maximum, and the weight of the entire iron drum 25 after assembly is 350 kg at maximum. All of the work processes are highly dangerous, and there is no hope of improving work efficiency. Especially in the above four steps, the first flange plate 1
7 on the square timbers 23, 23, and the fourth step of raising the iron drum 25 after assembly is completed, are particularly dangerous, and furthermore, the first and fourth steps are It is a direct cause of symptoms such as back pain in workers, and has drawbacks such as low safety and an inability to improve work efficiency.

Purpose Therefore, the present invention was devised to improve the shortcomings in the conventional iron drum assembly work process as described above, and its purpose is to save labor, have high safety, and improve work efficiency. The object of the present invention is to provide an iron drum assembly device that can be improved.

Means for Solving the Problems The above objects are achieved by the iron drum assembly device according to the present invention. In summary, the present invention comprises: a base; a rocking plate that is swingably hinged to the base and on which an iron drum for winding electric wires can be placed;
An iron drum characterized by having a swing plate drive mechanism capable of swingably driving the swing plate from a position overlapping the top surface of the base to a position forming a predetermined angle with the top surface. It is an assembly device.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an iron drum assembly apparatus according to an embodiment of the present invention. A rocking plate 3, a rocking plate drive mechanism that swingably drives the rocking plate 3, a running path 15 constructed above the workshop, and a rocking plate drive mechanism that swings the rocking plate 3, a running path 15 constructed above the workshop, and a swinging plate drive mechanism that swings the swinging plate 3. a control means, ie, a control box (not shown) equipped with a control circuit (for example, a sequence relay circuit) for controlling the drive of the hoist 5;
and a drive mechanism.

The base 1 described above consists of a flat plate 2 having a substantially rectangular shape as shown in FIG. 2, and four partition plates 4 surrounding the outer periphery of the flat plate 2. One end of the swing plate 3 is hinged to one of the plates. The base 1 has an inclination angle adjustment function that adjusts the inclination angle of the flat plate 2 so that the flat plate 2 is approximately horizontal, taking into account that there is a slight slope in the workplace where the base 1 is installed. It is assumed that a mechanism (not shown) is provided.
Furthermore, a photoelectric switch (not shown) is disposed on the base 1 described above in order to detect whether or not a worker's feet or various parts are present within the flat plate 2. At the other end of the swing plate 3 opposite to the end hinged to the partition plate 4 of the base 1,
A chain 7 connected to the hoist 5 described above is attached. As is clear with reference to FIG. 6, when the above-mentioned flange plate 17 is placed on the upper surface of the end portion of the swing plate 3 that is hinged to the partition plate 4, the flange plate 17 is A locking member 9 having an arcuate locking surface having approximately the same diameter as the collar plate 17 is fixed to the collar plate 17 from its outer periphery so that the collar plate 17 does not move. Furthermore, a photoelectric switch (not shown) is disposed on the above-mentioned swing plate 3 in order to detect whether or not a worker's feet or various parts are present within the flat plate 2. In this embodiment, it is explained that a photoelectric switch (not shown) is attached to both the base 1 and the swing plate 3, but if there is any object inside the flat plate 2, it can be detected. The number and locations of photoelectric switches are not particularly limited as long as they can be installed.

The hoist 5 that constitutes the above-mentioned swing plate drive mechanism is, as is well known, a small hoisting machine in which an electric motor, a reduction gear, a winding drum, etc. are integrated, and is installed above the workshop. The swing plate 3 is configured to be able to run freely along the travel path 15 along which the swing plate 3 is located, and to freely lift and suspend the swing plate 3 via the chain 7. On the traveling path 15 described above, as the hoist 5 travels, the rocking plate 3 swings to an optimal angle for rolling the collar plate 17 onto the rocking plate 3 as shown in FIG. When the moving plate 3 moves upward or downward, a limit switch (not shown) locks a control circuit to stop the movement of the hoist 5 in order to restrict further upward/downward movement of the moving plate 3. attached. Furthermore, as shown in FIG.
When the hoist 5 moves up to an angle (for example, about 70 degrees) at which it can rise up by its own weight, a control circuit is provided to stop the movement of the hoist 5 in order to restrict further upward movement of the swing plate 3. A locking limit switch (not shown) is also installed.

The drive of the swing plate 3 by the hoist 5 is controlled by a control box (not shown) which together with the hoist 5 forms the swing plate drive mechanism. The aforementioned control box (not shown) has a built-in control circuit such as a sequence relay circuit, and the control circuit controls the control circuit from the photoelectric switch (not shown) to the inside of the flat plate 2 when the swing plate 3 is lowered. If a signal indicating that some object is present is output, the drive of the hoist 5 is immediately stopped and the swing plate 3
It has come to regulate the downward movement of

In the iron drum assembly apparatus having the above-described configuration, when the operator turns on the drive power for the hoist 5 (not shown), the hoist 5 is driven, and is first moved from the flat plate 2 to a position having an inclination angle as shown in FIG. The hoist 5 is automatically driven when the hoist 5 reaches a position where a limit switch is placed on the travel path 15 that restricts the upward/downward movement of the swing plate 3. It is stopped, and the swing plate 3 is held at the position described above. The first collar plate 17 carried from the pedestal 21 (shown in FIG. 7) is rolled onto the rocking plate 3 held at the position shown in FIG. 2 by one worker. When the operator confirms that the hoist 5 has been loaded, the operator unlocks the control circuit that automatically stops the hoist 5, and drives the hoist 5 again. When the hoist 5 reaches a position where a limit switch is provided on the travel path 15 corresponding to the state where the swing plate 3 is approximately horizontal, the hoist 5 is automatically driven at that position. will be stopped. Here, the body plate 19 as shown in FIG. 19 to the first flange plate 17, and then three workers carried the second flange plate 17 from the pedestal 21 to the third flange plate 17.
Assemble the iron drum 25 as shown in the figure. When the operator confirms that the assembly work of the iron drum 25 is completed as shown in FIG. 5 (see Figure 5). When the hoist 5 reaches the position where the limit switch is installed on the running path 15 corresponding to the angle at which the iron drum 25 can rise under its own weight, the hoist 5 is turned off at that position. 5
drive is automatically stopped. Then, as shown in FIG. 5, the iron drum 25 will rise under its own weight.

By the way, as shown in FIG. 2, when the rocking plate 3 attempts to move downward after placing the first collar plate 17, for example, the worker's feet may be inside the flat plate 2. is detected by the photoelectric switch and a detection signal is input from the photoelectric switch to the control circuit, the drive of the hoist 5 is automatically stopped by the detection signal, and the downward movement of the swing plate 3 is stopped at that point. It will be regulated. Therefore, the swing plate 3 will not move downward unless the operator releases the lock of the control circuit by confirming that the worker's feet are not inside the flat plate 2.

As explained above, according to one embodiment of the present invention, when the first flange plate 17 is placed on the swing plate 3 from the pedestal 21, the first flange plate 17 is rolled. Since it can be set on the rocking plate 3, only one worker is required. Furthermore, since the collar plate 17 can be rolled and set, physical strength is not wasted and lower back pain can be reduced. Since the iron drum 25 assembled on the swing plate 3 is raised by its own weight by the drive of the hoist 5, there is no need to manually lift the heavy iron drum 25 after the assembly is completed, which improves safety. can be achieved. Furthermore, if a plurality of iron drum assembling apparatuses having the above-mentioned configuration are installed in parallel, the next iron drum assembling work can be started when the iron drum 25 as shown in FIG. 6 is being raised. It has also become possible to significantly shorten work time.

In the above embodiment, a hoist was used as the swing plate drive mechanism, but instead of the hoist, air cylinders, hydraulic cylinders, electric cylinders,
It goes without saying that a link mechanism, rack and pinion mechanism, etc. may be used.

Effects of the invention As explained above, according to the invention, the swing plate drive mechanism allows the swing plate to swing freely from a position where it overlaps with the top surface of the base to a position where it makes a predetermined angle with the top surface. Since the iron drum can be driven, it is possible to provide an iron drum assembly apparatus that can reduce weight, have high safety, and improve work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an iron drum assembly apparatus according to an embodiment of the present invention. Figure 2, Figure 3, Figure 4
FIG. 5 is an explanatory view of the operation of the iron drum assembly apparatus having the structure shown in FIG. 1. FIG. 6 is a perspective view of a swing plate used in an iron drum assembly apparatus according to an embodiment of the present invention. FIG. 7 is a perspective view showing the flange plate and body plate, which are the constituent members of the prefabricated iron drum, and the pedestal on which these constituent members are placed. FIG. 8 is a perspective view showing a body plate which is a component of the prefabricated iron drum. Figure 9, Figure 10,
FIGS. 11 and 12 are diagrams illustrating the process of assembling an iron drum before using the iron drum assembly apparatus according to the present invention. 1: Base, 3: Swing plate, 5: Hoist, 7: Chain, 15: Running path.

Claims (1)

[Claims for Utility Model Registration] 1. A base whose upper surface is substantially horizontal, one end of which is hinged to the base so as to be swingable, and an iron drum for winding electric wires is placed on the upper surface. A rocking plate is provided on the upper surface of the one end hinged to the base, and a rocking plate is provided with a locking member for fixing a flange plate that is a component of the iron drum; From a position where the rocking plate overlaps the top surface of the base with the hinged one end as the center, the iron drum mounted on the rocking plate is centered around the engagement portion with the locking member,
A rocking plate drive mechanism connected to the rocking plate so as to be able to swing freely to a position forming a predetermined angle with the upper surface so that the iron can be raised by its own weight. Drum assembly equipment. 2. At least one of the base or the swing plate is provided with object detection means for detecting when an object is interposed between the base and the swing plate. An iron drum assembly device according to claim 1 of the utility model registration claim. 3. The iron drum assembly apparatus according to claim 2, wherein the object detection means is a photoelectric switch. 4. The swing plate drive mechanism includes a drive unit that drives the swing plate, and a displacement detection unit that detects the displacement amount of the drive unit when the displacement amount of the swing plate reaches a preset value. and a control means for controlling the driving of the driving means in response to an output signal from the displacement amount detecting means or the object detecting means. Iron drum assembly equipment as described in any of the paragraphs. 5. The iron drum assembly apparatus according to claim 4, wherein the displacement amount detection means is a limit switch. 6 The driving means includes a hoist, an air cylinder,
The iron drum assembly apparatus according to claim 5, which is a utility model, and is characterized by being one of a hydraulic cylinder, an electric cylinder, a link mechanism, and a rack and pinion mechanism.