JPH046436B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The invention of the present application relates to a plug polishing machine. More specifically, the present invention relates to a mechanism for automatically polishing the two spouts of a drum can.

(B) Prior art Since the plug polishing machine according to the present invention is mainly employed as part of the recycling process of drums,
First, an outline of the drum recycling process that is normally performed will be explained.

(1) Shaping and pre-treatment process After removing the residue from the inside of the drum for recycling, the unevenness that has occurred on the surface is shaped, and the drum is sent to the internal pre-treatment cleaning process. In the internal pretreatment step, a spray nozzle is used to inject cleaning liquid at a constant high pressure into the drum, thereby efficiently performing pretreatment cleaning. The drum is then sent to an external cleaning device, which completely removes any external dirt.

(2) Main processing cleaning and finishing process In the pre-processing process, the drum cans that have been shaped and cleaned inside and out are sent to an automatic washing machine, where the inside is completely cleaned for main processing and removed. Rust, neutralization, degreasing, water washing, rust prevention, etc. are carried out. In this process, the caps of a pair of drums whose interiors have been completely cleaned are polished; hereinafter, the caps with a large diameter are called large caps, and the caps with small diameters are called small caps.
Next, an airtightness test based on the specified standards is carried out in the drum leakage testing equipment, and only those that pass the standards are sent to the drying oven.After passing through the drying oven, the drums are put into the automatic drying equipment, and the inside of the can is automatically checked. After drying, a final internal inspection was carried out.
The finishing plug seals the cap tightly. The sealed drum is then completely painted in the painting process, and finally handed over to product management.

The present invention relates to an automatic polishing machine for the plug portion of a drum during the complete cleaning and finishing steps for the main treatment among the aforementioned steps.

Traditionally, when polishing the large and small caps of a drum, the drum was held upright and the large and small caps were brushed from above by hand, so after polishing was completed, the drum was left upright and the process proceeded to the next step. It has to be carried out.

(c) Problems to be solved by the invention Conventional manual polishing of plugs does not improve work efficiency, and when attempting to fully automate the drum recycling process, there are problems such as being a factor that hinders automation. Ta.

(d) Means for solving the problems and their effects Therefore, the present invention aims to automate the plug polishing work to improve efficiency and automate the entire regeneration process in relation to other processes.

The consistency of work in automating the entire regeneration process will be explained with reference to FIG. The drum can D, whose interior was cleaned in the preceding chain washer, is repositioned by the reversing device, and the large stopper 2 on the top plate 6,
Roller conveyor 1 that can be raised and lowered with the small stopper 4 on the bottom
2 and moves in the direction of the arrow, positioning mechanism 1
In step 4, the positions of the large and small plugs are preliminarily positioned to match the positions of a pair of polishing brushes α and β to be used in the next polishing process.

The positioned drum D is then sent out to the next polishing machine 16 on the chain conveyor 15,
In this polishing machine, a large plug 2 protrudes downward;
The small plugs 4 are brushed from below by rotary brushes α and β at positions preset by the positioning mechanism. After polishing with the brushes α and β, the drum D is transferred to the next vertically movable roller conveyor 1.
8, moves onto the chain conveyor 20 by lowering the roller conveyor 18, changes direction in the direction of the arrow and moves, and at the positioning mechanism 22 adjacent to the chain conveyor 20, the nozzle 26 of the finishing washer 24, which is the next process, is moved. The large stopper 2 is positioned in advance so that the cleaning liquid can be sprayed into the hole. It is fed into the finishing washer 24, and a nozzle 26 that can be raised and lowered cleans the inside thereof. After that, the drums continue to move on the chain conveyor 20, pass through an elevating roller conveyor, a continuous reversing machine, the position of the top plate 6 is reversed, and then move to another chain conveyor and an elevating roller conveyor (none of which are shown). is sent to the leak testing machine via the

The present invention is used in the plug polishing step of the above steps. The plug sander 16 includes a descending moving member a supported by a support column and a support frame extending therethrough, a rotating brush member b for plug polishing, an elevating member c supporting the brush member, and a drum can. It consists of an arm member d that holds the brush member b above during operation.

The positioning mechanism 14 determines the position of the large stopper 2 and small stopper 4.
Drum can D determined to correspond to large stopper brush α and small stopper brush β of the stopper polisher 16 in the next process
is fed between the support columns of the plug polishing machine 16 according to the present invention on a chain conveyor 15, and when the large plug 2 moves to a position above the brush α and the small plug 4 to a position above the brush β, a separately provided sensor ( (not shown) detects this position and at the same time activates the descending member a attached to the support column and support frame to lower it and press the base plate 8 of the drum can D. At the same time, the holding arm d is used to raise the top of the drum can The plate 6 is held from below and held at a position higher than the roller conveyor 15. The brush elevating member c has brushes α and β, and a large stopper 2 and a small stopper 4.
When the brushes are raised to the optimal position for brushing, the brushes α and β rotate to polish the large and small plugs. When the predetermined polishing is completed, the drum can D is moved to the roller conveyor 18, which can be raised and lowered, on the chain conveyor 15 through the reverse operation to that described above.

(E) Embodiment An embodiment of the plug polishing machine according to the present invention will be described below with reference to the attached drawings. The device according to the present invention includes four support pillars 30 erected on the ground, upper support frames 32 and 34, and a lower support frame 3 constructed between these pillars.
It is arranged inside the frame formed by 6 and 38. The descending member a has a cylinder 44 with a pressure plate 40 and a piston rod 42 for actuating it.
The rotating brush member b includes a brush α provided at one end of a shaft portion 48 rotatably supported by a bracket 46;
β and a belt member 52 that connects the shaft portion to the drive motor 50. The brush elevating member c has an elevating lever 58 that is fitted and fixed to a horizontal shaft 56 that is mounted on an arm 54 that is erected on a support frame 36, and is provided with a piston rod 60 that is an actuator that operates this elevating lever 58. The cylinder 62 is disposed below the base plate 64, as shown in FIG. The base plate 64 is raised and lowered by the raising and lowering lever 58 brought into contact with the lower surface of the base plate 64 by the operation of the cylinder 62 and pushing it up and down. The drum holding arm d is a support rod 6 installed on the support column 30.
6, 66 and shafts 68, 68 installed thereon, one of the levers is connected to a cylinder 72 via a piston rod 74, and when the piston rod 74 is actuated, The lever 70 is raised and the top plate 6 of the drum D is pushed up from below by the palm part 73 of the lever 70 and held. The vertical movement of one lever 70 by the operation of the piston rod 74 is caused by the movement of the lever 70 at an intermediate portion between a pair of shaft portions 76 rotatably supported by a support arm 75 protruding from the end of the support rod 66 and the shafts 68, 76. The pre-78 is inserted and fixed into the
Since the power is transmitted to the two shafts 76 and 68 via belts 82 and 84 wound around a pulley 80 attached to one end of the shaft 76, the four levers 70 can be operated simultaneously.

The stopper sander is mounted on the chain conveyor 15 with both the large stopper 2 and the small stopper 4 positioned by the positioning mechanism so as to correspond to the polishing brushes α and β provided in the stopper polisher according to the present invention. support pillar 30
When the large stopper 2 and the small stopper 4 come above the polishing brushes α and β, their positions are detected by the operation of a separately provided sensor device (not shown), and they are lowered. The cylinder 44 of the moving member a operates to push down the pressing plate 40 and lock the drum base plate 4. At the same time, the cylinder 72 of the holding arm d operates to push out the piston rod 74 and push the shaft 6.
Push up the lever 70 that is pivoted at 8. The other three levers are also pushed up via the shaft 68, pulley 78, shaft 76, pulley 80, and belts 82, 84 in the manner described above, and the palms 73 of the four levers 70 hold the drum can D. Push up and support from below.

Therefore, in the above state, the drum D is locked so as not to move from both the top and bottom directions. Next, the brush elevating member C cylinder 62 is operated and the elevating lever 58 moves the base plate 6 through its piston rod 60.
Since 4 is pushed up, brushes α and β are also pushed up on axis 4 at the same time.
8, and the large stopper 2 and small stopper 4 of drum can D
When the brushes α and β come into contact with each other and stop at a position where they can be polished, the drive motor 50 is activated, and the brushes α and β are rotated via the belt member 52 and the shaft 48. Polish. When the polishing is completed, the drum can D is lowered to the moving chain conveyor 15 by the operation in the reverse order to that described above, and carried on this conveyor to be carried out to the next process.

(f) Effect The present invention is not only efficient because it can automatically polish the large and small stoppers without using human power in cooperation with the positioning mechanism for the large and small stoppers of the drum can. By combining this process with the above process, there are effects such as being able to automatically and consistently carry out the drum recycling process.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of a plug sander according to the present invention. FIG. 2 is a side view of FIG. 1. FIG. 3 is another side view of FIG. 1. FIG. 4 is a side view of the actuator of the brush lifting member. FIG. 5A is a bottom view of FIG. 1.
FIG. 5B is a side view of FIG. 5A. FIG. 6 is a schematic diagram showing the flow of each step of recycling drum cans using the plug sander according to the present invention. FIGS. 7A and 7B are a side view and a top view of the drum, respectively. α is a brush for large stoppers, β is a brush for small stoppers, D is a drum, a is a descending member, b is a rotating brush member, c is a brush elevating member, d is a holding arm, 2 is a large stopper, 4 is a small stopper a stopper, 6 a top plate, 14 a positioning mechanism,
30 is a support column, 32, 34 is an upper support frame, 36, 3
8 is a lower support frame, 40 is a pressing plate, 44 is a cylinder,
48 is a shaft portion, 50 is a drive motor, 58 is a lifting lever, 62 is a cylinder, 64 is a base plate, 68 is a shaft, 70 is a lever, 72 is a cylinder, 73 is a palm portion,
76 is the shaft.

Claims (1)

[Scope of Claims] 1. A member that presses and holds the drum from above by being supported by a support column and a support frame that spans the support column and is movable up and down, and a member that raises the rotating brush from below to the position where the drum is to be polished. A plug sander having a member that holds the drum from below while the rotating brush is in operation. 2. The plug polishing machine according to claim 1, which includes a drum holding member including a cylinder for raising and lowering a pressing plate supported by a support column and a support frame. 3. The plug polishing machine according to claim 1, which has a brush provided at each end of a pair of shafts driven by a motor, and an elevating member that allows the brushes to move up and down a predetermined distance together with the shafts. 4. The plug polishing machine according to claim 1, further comprising a lever member that is fitted and fixed to the shaft portion, is connected to the cylinder via a piston rod, and holds the drum from below with its palm portion when the cylinder is actuated.