JPH078491Y2 - Automatic supply device for round bars, etc. on conveyor lines - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides a pipe material or a round bar (hereinafter, referred to as "round bar etc.") at the starting end of a conveyor line. The present invention relates to an automatic feeder for supplying round rods and the like for feeding each in a row.

[Prior Art] Conventionally, when a metal round bar or the like is conveyed through a conveyor line to various processing steps, for example, a process such as a mouth-drawing process or an annealing process, a worker is arranged at the starting end of the conveyor line. Then, a supply method has been used in which the round bars and the like are manually taken out from the stockyard one by one, placed on a conveyor line in a line and sent out.

[Problems to be solved by the device]

However, with such a conventional manual supply method, the work efficiency is poor, and the worker is forced to perform heavy labor,
If the round bar is long and heavy, two people must be placed at both ends of the round bar, so there is a problem in that the supply method is extremely low in productivity. ing.

The present invention has attempted to improve the above-mentioned problems in order to solve the above problems, and an object of the present invention is to improve productivity by automating the supply of round bar material to a conveyor line. The point is to make it possible, and its concrete means and action are as follows.

[Means for Solving the Problems]

A pair of left and right support frames formed in a substantially V shape are provided,
A pair of left and right struts, in which an endless chain with protruding lift claws is stretched so as to be rotatable in the up-down direction, is provided facing the above-mentioned both support frames.
Either one is provided so that it can be moved and stopped along the opposite direction.

[Action]

When a plurality of round bar members are placed on the pair of left and right support frames,
The round bars and the like are gathered in the central portion of the support frame by the V-shaped inclined surface of the support frame, and a state in which one round bar or the like always projects to the front side of the support frame is obtained. Then, by sequentially picking up and transporting the round bar or the like by the lift claws, the round bar or the like can be automatically supplied to the conveyor line.

〔Example〕

Specific embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 10 are drawings showing a first embodiment of the present invention, in which reference numeral 1 shows an automatic feeder for a round bar or the like according to the present invention. Reference numeral 2 is a base of the automatic supply device 1 formed in a rectangular frame shape, and a pair of left and right columns 3, 3 are erected on both left and right sides of the base 2 at substantially intermediate positions along the front-rear direction, A rotary shaft 4 is horizontally mounted between bearings 5, 5 between the upper ends of the columns 3, 3. The rotary shaft 4 is connected to the drive shafts 6 ', 6'of the geared motors 6, 6 mounted on the columns 3, 3 via chains 7, 7 so that they are rotated by the drive force of the geared motors 6, 6. It is provided. The drive sprockets 8 and 8 are supported by a pair of left and right in the vicinity of both ends of the rotary shaft 4, while the driven sprockets 9 and 9 are freely rotatable below the drive sprockets 8 and 8 via the columns 3 and 3. Is mounted on. Then, each driving sprocket 8 and driven sprocket 9 forming a pair of upper and lower
Chains 10 and 10 are stretched in an endless manner along the vertical direction, respectively, and both chains 10 and 10 are driven by the rotary shaft 4 to rotate the drive sprockets 8 and 8 respectively.
The chains 10 and 10 are provided so as to rotate synchronously, and one or a plurality of lift claws 11 ...
Are provided in a left-right pair so as to project toward the outer peripheral direction. In addition, the pillar 3,
On the front side of 3, the guide plates 12 and 12 are extended in the vertical direction and projectingly provided so as to be adjustable forward and backward along the front-rear direction,
The effective projection width of the lift pawls 11, 11 is adjustable by the forward / backward adjustment operation of the guide plates 12, 12.
A pair of left and right guide disks 13 and 13 formed to have a diameter larger than the rotation trajectory of the chains 10 and 10 are pivotally supported on the rotary shaft 4, and the guide disks 13 and 13 are side-viewed as described above. The guide disks 13 and 13 are provided so as to overlap the upper ends of the plates 12 and 12.
At the rear position of the, the base ends of the chutes 14, 14 extending downwardly with respect to the conveyor line (not shown) are arranged close to each other.

On the other hand, on the base 2, the rails 15,
15 are laid in parallel along the front-rear direction,
A base frame 16 formed in a rectangular shape is movably provided on the top. That is, a pair of left and right drive wheels 17 and 17 and driven wheels 18 and 18 rolling on the rails 15 and 15 are pivotally supported on the base frame 16, and the drive wheels 17 and 17 are attached to the base frame 16. The drive shafts of the geared motors 19 and 19 are connected via gears 20a and 20b, respectively, and the drive force of the geared motors 19 and 19 rotates the drive wheels 17 and 17 to move the base frame 16 in the front-rear direction. It is provided so that it can be done. A pair of left and right support frames 21, 21 formed in a substantially V shape are fixed to the left and right sides of the base frame 16 via brackets 22, 22. That is, each support frame 2
Each of the support frames 21 and 21 is formed in a substantially V shape so that the two front and rear frame rods 21a and 21b incline downward toward the center with an appropriate downward slope. A plurality of works (round bar materials, etc.) W are placed with both end portions thereof supported. In addition, a touch sensor (not shown) is provided on the front side of the support columns 3 and 3 over a range corresponding to the vertical width dimension of the support frames 21 and 21.
The touch sensor is the geared motor
It is connected to the control circuit that controls forward rotation, stop, reverse rotation, etc. of 19,19.

11 to 16 are drawings showing a second embodiment,
In the first embodiment, the base frame 16 to which the supporting frames 21 and 21 are attached is movably provided via the wheels 17 and 18, while the columns 3 and 3 of the chain 10 having the lift claws 11 projecting therefrom are the bases. Contrary to the above, in the second embodiment, the columns 3, 3 are provided so as to be movable on the base 2 along the front-rear direction via wheels, and the support frame is fixed. The base frame 16 to which 21,21 are attached is fixed to the base 2.

Next, the operation will be described with reference to the first embodiment.

When a plurality of works W ... Are transferred from the stockyard by a crane and placed on the support frames 21, 21 with both ends thereof supported, the frame rods 21a, 21a of each support frame 21, Since the workpieces 21b are inclined downward toward the center, each work W ...
Collected in the central portion of 21, and as shown in FIG. 1 (or FIG. 5), a state in which only _one work W ₁ is projected on the front portion of the support frame 21 is obtained. Then, when the operation switch is turned ON in this state, the base frame 16 is moved forward through the forward rotation of the geared motors 19, 19 by the control circuit, and the work W ₁ at the forefront is provided on the front side of the columns 3, 3. When the touch sensor is touched, the sensing signal obtained by the touch sensor is input to the control circuit and immediately the geared motor
The drive of 19, 19 is stopped, and the movement of the base frame 16 is stopped. In this way, in the state where the work W ₁ at the forefront contacts the touch sensor and the movement of the base frame 16 is stopped (FIG. 6),
Since the lift claws 11, 11 of the chains 10, 10 stretched over the columns 3, 3 are rotated by the driving force of the geared motors 6, 6, the lift claws 11, 11, as shown in FIG. The work W ₁ is picked up by 11 and the guide plate 1
Transported upward along 2,12. Further, at this time, the two work pieces W are simultaneously conveyed by adjusting the effective projection width of the lift claws 11 and 11 in accordance with the diameter of the work piece W ₁ by adjusting the guide plates 12 and 12. Can be prevented. The work W ₁ thus conveyed upward moves to the chute 14, 14 via the guide discs 13, 13 when the lift claws 11, 11 pass through the upper ends of the columns 3, 3 and are reversed. The sloping surfaces of the chutes 14, 14 are supplied to the rolling conveyor line by their own weight. Then, as described above, when the first work W ₁ is conveyed upward and there is no work W contacting the touch sensor, the signal of the touch sensor that senses the non-contact state is input to the control circuit and the geared motors 19, 19 are activated. It is driven in the normal direction again, and as shown in FIG. 8, the base frame 16 is moved forward until the next work W ₂ comes into contact with the touch sensor. When the workpiece W ₂ contacts the touch sensor, the detection signal is input to the control circuit, the geared motors 19, 19 are stopped via the control circuit as described above, the movement of the base frame 16 is stopped, and the lift claw is also stopped. The work W ₂ is picked up by 11, 11 and conveyed upward. Thereafter, such an operation is continuously repeated, and after the last work W is conveyed upward as shown in FIG. 4 through the process of supplying the respective works W as shown in FIGS. 9 and 10, When the base frame 16 moves further forward, a signal from a sensing means such as a limit switch provided to regulate the maximum moving distance of the base frame 16 is input to the control circuit to reverse the geared motors 19, 19 and The frame 16 is retracted to the initial position.

On the other hand, in the second embodiment, the pillars 3, 3 on which the chains 10, 10 are stretched are sequentially moved rearward, and the supporting frames 21,
It is possible to obtain the effect of supplying the works W placed on the 21 to the conveyor line one by one.

Although the presence or absence of the work W is detected by the touch sensor in both of the above-described embodiments, an optical sensor such as a photoelectric tube may be used instead of the touch sensor. Also, the chains 10 and 10 for rotating the lift claws 11 and 11.
It is also possible to control the work W to rotate each time the work W comes to a position corresponding to the lift claws 11 without continuously driving the work W as described above.

[Effect of device]

The present invention is configured as described above, and the pair of left and right support frames formed in a substantially V shape as described above are provided, while an endless chain protruding from the lift pawl is rotated in the vertical direction. A pair of right and left struts that are stretched so as to face each other is provided on both of the support frames, and either one of the struts or the support frame is provided so as to be movable and stopable in the opposite direction, and is provided on the support frame. By rounding up the rods to be placed one by one with the lift claws and transporting them, it becomes possible to automate the supply of the rods to the conveyor line, compared to the conventional manual work. The productivity can be significantly improved. In addition, the present invention does not require any adjustment operation for increasing or decreasing the amount of round bar material accumulated in the bar material receiving bucket and for adjusting the size of the accumulated round bar material (change in diameter). It has become possible to perform automatic supply by a simple operation in which either one of the support frame and the support column is horizontally moved in the opposite direction. That is, the workability can be greatly improved.

[Brief description of drawings]

1 to 10 are drawings showing a first embodiment of an automatic feeding device according to the present invention. FIG. 1 is a side view, FIG. 2 is a front view, FIG. 3 is a plan view, and FIG. Also, FIGS. 5 to 10 are explanatory views of the operating state. Further, FIGS. 11 to 16 are explanatory views of the operation state of the second embodiment. W ... Work (round bar etc.), 1 ... Automatic feeder, 2 ... Base, 3 ... Struts, 4 ... Rotation shaft, 5 ... Bearing, 6 ... Geared motor, 6 '... Drive shaft, 7 ... Chain, 8 … Drive sprocket, 9… Driven sprocket, 10… Chain, 11…
Lifting claw, 12 ... Guide plate, 13 ... Guide disc,
14 ... shoot, 15 ... rail, 16 ... base frame, 17 ... driving wheel,
18 ... Driven wheel, 19 ... Geared motor, 20a, 20b ... Gear, 21 ... Support frame, 21a, 21b ... Frame rod, 22 ... Bracket.

Continuation of front page (56) References JP-A-57-112239 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right columns in which a pair of left and right support frames formed in a substantially V shape are provided, and an endless chain protruding from a lift pawl is stretched so as to be rotatable in the vertical direction. An automatic feeder for a round bar or the like in a conveyor line, which is provided so as to face both of the support frames, and one of the support column or the support frame can be horizontally moved and stopped along the facing direction.