JPS5922899Y2 - 1-ton can molding equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a 1-container molding device that collects used 1-container cans, cuts off the lids of the 1-container cans, and then presses the remaining edges inward.

Conventionally, a used one-ton can 1 as shown in FIG. 1a is collected and the lid is cut off as shown in FIG. 1b.

At this time, the peripheral edge 2 becomes serrated, so by bringing the can 1 into contact with the lower mold 3 as shown in C and pressing it from above with the upper mold 4, the peripheral edge 2 is pressed downward as shown in d. It was bent inward.

In the bending work of the peripheral portion 2 as shown in C, conventionally, the can 1 is manually engaged with the fixed lower mold 3, and the can 1 is
The peripheral edge part 2 was made new by repeating pressing with the upper mold 4 by rotating it one by one.

Therefore, the work is troublesome, and it is also uneconomical because one worker is required for each press device.

This invention was made to improve the above-mentioned drawbacks.
The can is automatically fed into the lower mold, and the lower mold is automatically rotated to press the periphery of the can, eliminating the need for workers and automating the entire process. It is efficient and economical.

Next, one embodiment of the present invention will be described based on FIG. 2 and subsequent figures.

In FIG. 2, 5 is an air cylinder that rotates the lower mold intermittently by 90 degrees, and the piston shaft 6 of this air cylinder 5 is
A shaft 7 is connected to the shaft 7 so as to be movable up and down, and a rack 8 is fixed to the upper part of the shaft 7, and a cam 9 is fixed to the lower part thereof.

This rack 8 meshes with a gear 12 loosely fitted on a shaft 11 via a transmission gear 10, and the side of this gear 12 is biased outward around a pin 13 as shown in FIGS. 4 and 5. 4 is provided.

The pawls 14 sequentially engage four portions 15 formed at four locations on the inner circumferential surface of the lower mold 3 that is loosely fitted onto the shaft 11, thereby intermittently feeding the lower mold 3 by 90 degrees.

The lower mold 3 has a rectangular prism shape as a whole, and is integrally attached to an auxiliary mold 16 for horizontal holding of the 18-ton can with bolts so that it can be replaced when it wears out. ing.

Positioning notches 17 are formed at four corners of the end of the lower mold 3.

An upper mold 4 is provided on the upper J block of this lower mold 3,
This upper mold 4 is connected to one hydraulic cylinder 7 through a screw I-shaft 18, and is freely movable up and down.

On the other hand, the cam 9 has a roller 21 at the tip of the swing plate 20.
The swing plate 20 is in contact with the pin 22.
It is rotatable only upwards from the horizontal direction in FIG. 2, centered on .

That is, when the cam 9 moves from up to down, the swing plate 2
0 does not rotate, and when moving from downward to upward, it rotates and escapes from the cam 9.

A shaft 23 connecting the rocking plate 20 with a pin 22 is inserted into a bearing 24 so as to be movable horizontally.
The shaft 23 is always biased to the left in the figure by a spring 25 whose both ends are fixed to the shaft 23.

Further, the other end of this shaft 23 is in contact with the engagement shaft 26,
This engagement shaft 26 is rotatably provided around a pin 27, and its upper end is bent to form a retaining portion 28 so as to engage with the positioning notch 17. A spring 29 is provided between the two and constantly biases the engagement shaft 26 to the left.

As shown in FIG.
A push plate 30 for feeding the can 1 into the lower mold 3 is provided in a guide groove 32 of a fixed frame 31 so as to be able to move forward and backward, and this push plate 30 is connected to an air cylinder 34 via a screw shaft 33. .

Furthermore, chucks 35 for holding the 1-ton can 1 are provided on both sides of the push plate 30, and are operated by an air cylinder 36.

A conveyance device is provided below the push plate 30, as shown in FIG.

That is, this conveyance device has a fixed base 37 inclined at 45 degrees.
．． 38, of which the fixing base 37 has an upper end with a slight gap from the rear end surface of the auxiliary mold 16, and is installed so as to be located in a direction perpendicular to the advancing and retracting direction of the pushing plate 30. ing.

In other words, the fixing base 37 is provided at its upper end at a position where the 18-sized can 1 is pushed into the lower mold 3 and pulled out.

A movable table 4 having wheels 39 is disposed on the -E surface of the fixed table 37.
A connecting rod 41 provided on the lower surface of the movable table 4o is connected to a screw shaft 43 of an air cylinder 42 provided on the lower surface of the fixed table 37. There is.

A partition plate 44, which is bent upward at 90 degrees and has a width slightly narrower than that of a single beef can 1, is formed at the -L end of the movable table 40.

Further, an air cylinder 45 is provided at the bottom of the moving table 40, and the tip of the piston shaft 46 of this air cylinder 45 has an L
A letter-shaped push-up plate 47 is fixed.

Above the moving table 40, there is provided a slightly inclined loading table 48 provided with a large number of rollers, on which a 1-ton can slides and falls.

The lower fixing table 38 has a square shape with a discharge part 49 bent horizontally at the top, and an air cylinder 50 is provided on one side of the lower fixing table 38 in parallel with the fixing table 38, and its piston axis A push-L plate 52 is fixed to the tip of 51, and an air cylinder 5 is mounted perpendicularly to the fixing base 38 on the bottom surface.
3, whose piston shaft 54 extends upward through the fixed base 38, and has a lowering plate 55 fixed to its tip.

Next, the action will be explained.

First, cut off the lid of the recovered 1-ton can 1, and
is placed on the loading table 48 so that the peripheral edge 2 faces toward the lower mold 3.

Then, the can 1 moves on the rollers due to its own weight, falls onto the moving table 40, comes into contact with the moving table 40 and the push-up plate 47, and stops.

Next, first, the air cylinder 45 pushes the l1 can 1 up to the position indicated by the solid line in FIG.

In synchronization with this pushing up of the 1-8 can 1, the 1-8 can 1, which has been sent first and whose peripheral edge 2 has already been pressed, is held by the chuck 35 and moved toward the right in FIG. 3 by the air cylinder 34. As a result of the operation, the can is pulled out from the lower mold 3 and the auxiliary mold 16, and at the position where it is pulled back to above the partition plate 44 and the fixed base 37, the fixation by the chuck 35 is released and the 18-inch can is placed on the partition plate 44 and the fixed base 37. Place 1.

Next, the air cylinder 42 is operated to push the moving table 40 up toward the upper knob.

Then, the pressed can 1 slides on the fixing table 37 by the partition plate 44 and is pushed up onto the lowering plate 55.

At the same time, the 1-8 can 1 to be played from now on can be engaged with the opening periphery of the 1-8 can 1 and the end face of the auxiliary mold 16 while maintaining the state placed on the push-up plate 47 and the moving table 40. is pushed upwards into position.

The pressed L1 can 1 that has been pushed up by the partition plate 44 and placed on the lowering plate 55 is lowered by the lowering plate 55 that advances and retreats with the air cylinder 53 and is lowered to the upper plate 52.
Then, by the operation of the air cylinder 50, it is pushed up by the push-up plate 52 and sent to the discharge section 49.

On the other hand, the push plate 30 and the chuck 35 are simultaneously moved toward the lower mold 3 by the operation of the air cylinder 34, and the can 1 is pushed out from the end face toward the auxiliary mold 16 while sliding.

At this time, one chuck 35 moves above the push-up plate 47, and the other chuck 35 moves while passing through the gap d between the can 1 and the partition plate 44.

The can 1 is slid into the auxiliary mold 16 and is pushed out until the peripheral edge 2 is located in the lower mold 3.

Next, the hydraulic cylinder 19 is actuated and the upper die 4 presses the circumferential edge 2 of the first corner.

Next, when the upper mold 4 rises after pressing, the air cylinder 5
is operated and the shaft 7 is lowered, so that the rack 8 is lowered accordingly, and the gear 12 is rotated 90 degrees clockwise in FIG. 2 via the gear 10.

At this time, the pawl 14 engages with the recess 15 to prevent the locking from coming off when turning clockwise, so the lower mold 3 similarly rotates 90 degrees.

At the same time, the cam 9 also descends like the rack 8, so it pushes the rocking plate 20 to the right while making contact with the roller 21. As a result, the engagement shaft 26 rotates clockwise around the pin 27, and the engagement portion 2
8 is disengaged from the notch 17 so as not to hinder the rotation of the lower mold 3.

In this way, the lower mold 3 and the auxiliary mold 1 fixed to it
When 6 rotates 90 degrees, the 1D can 1 engaged with these
is also rotated 90 degrees, and the corner of the peripheral edge 2 that has not yet been pressed is located above the lower die 3, and the upper die 4 is lowered and pressed.

When this press is finished, the air cylinder 5 is activated again and this time raises the shaft 7, so that the rack 8 and cam 9 also rise.

When the rack 8 rises, the gear 10 rotates 90 degrees counterclockwise, but this time, the claw 14 is disengaged from the recess 15 when rotating counterclockwise, so the lower mold 3 does not rotate. It maintains its initial state.

Also, when the pawl 14 rotates 90 degrees counterclockwise, this pawl 1
4 is engaged with the recess 15 one position in front in order to prepare for clockwise rotation.

On the other hand, the cam 9 also rises, but since the rocking plate 20 is rotatable above the horizontal direction about the pin 22, the rocking plate 20 is rotated counterclockwise by the cam 9. By simply rotating, the retaining shaft 26 is not affected in any way, and the retaining portion 28 engages with the cutout portion 17 to prevent the lower mold 3 from rotating counterclockwise.

Further, the same operation is repeated three times to complete pressing of all the peripheral edges 2.

Next, place the 1-ton can 1 after this pressing into the chuck 3.
5, and pull it back onto the fixing base 37 and partition plate 44, release the chuck 35, and place the 18-inch can 1 on top of them.

Thereafter, it is sent to the discharge section 49 through the process described above.

Since the present invention is constructed as described above, the press operation of the peripheral edge of an empty can can be fully automated without requiring any manual labor, making it extremely economical and efficient.

[Brief explanation of the drawing]

Figure 1 a is a perspective view of a 1-ton can, b is a perspective view with the lid cut away, C is a view showing the conventional pressing method, d is a view showing the peripheral edge after pressing, Figure 2 is a view of the book. A front view of an embodiment of the 1-Dom can molding apparatus according to the invention, FIG. 3 is a partially sectional side view of the same, FIG. 4 is a side sectional view of the lower mold, and FIG. 5 is a front view of the upper mold. FIG. 6 is a front view of the conveyance device. 1...1 can, 2...periphery, 3...lower mold, 4
... Upper mold, 8... Rack, 9... Cam, 10.
...Gear, 11...Axle, 12...Gear, 14...
Claw, 15... recess, 17... notch, 20...
Rocking plate, 23... shaft, 26... engaging shaft, 27...
Pin, 28... Engaging portion, 30... Push plate, 35...
・Chuck, 37. 38... Fixed base, 40... Moving base, 44... Partition plate, 47... Push-up plate, 48...
... Loading table, 49... Discharge section, 52... Pushing up plate, 55... Lowering plate.

Claims (3)

[Scope of utility model registration request] (1) In a device that fits one empty can, which is the uncut portion of the lid, into the lower mold and presses the periphery with the upper mold, the empty cans are sequentially placed in the lower mold. It is equipped with a means for conveying the empty can to the rear part, a means for feeding the conveyed empty one-ton can into the lower mold and removing it after pressing, and a means for rotating the lower mold intermittently by 90 degrees, The mold has a quadrangular prism shape, part 1
The side has a length of at least % or more of one side of the periphery of the can, and as the lower mold is rotated intermittently by 90 degrees, the engaged can is also rotated intermittently by 90 degrees. A molding device for a 1-ton can, characterized in that at least press molding is performed. (2) The means for intermittently rotating the lower mold by 90 degrees consists of loosely fitting the lower mold onto a horizontal shaft, and providing four recesses on the inner peripheral surface of the lower mold.
Positioning notches are formed at four locations on the outer circumferential surface, and the claws of a gear loosely fitted onto the horizontal shaft are engaged with the recesses so as to maintain engagement only when rotating in one direction, and the positioning notches The one-ton can according to claim 1 of the patented utility model, characterized in that a locking portion is engaged with the notch, and the rotation of the gear and the locking of the locking portion are controlled in synchronization. molding equipment. (3) The conveyance means for feeding the empty cans into the lower mold is provided with a fixed stand inclined at 45 degrees, and the upper part is bent at 90 degrees and is moved forward and backward on this fixed stand by an air cylinder. A utility model according to claim 1 or 3, characterized in that a movable table is provided with a movable table formed thereon, and a pusher plate that can be moved forward and backward by an air cylinder is provided on the movable table. Doukan forming equipment.