JPH07204765A - Upper and lower curl caulking apparatus with bottom plate automatic inserting mechanism - Google Patents

Abstract

PURPOSE:To wholly automate a curl bottom caulking work, to shorten working time and to make the work safety by arranging a mechanism automatically inserting a bottom plate into a can body. CONSTITUTION:A supplying part for can body 1 is composed of a chain conveyor 4, a holder for holding and carrying the can body 1, a magnet 8 for attracting and fixing the can body 1 and a stopper 41 for positioning the can body 1. The setting mechanism for bottom plates is composed of a chain conveyor 13 for carrying the bottom plate 2, an attracting pad 15 and a cylinder 16 for attracting and drawing in the bottom plate 2, a turret 18 for turning the bottom plate 2 after attracting with a magnet 19, a lifter plate 22 and a cylinder 20 for pushing up the bottom plate 2 upward and inserting the one end into the inner part of the can body 1, a cylinder 21 for inserting the other end of the bottom plate 2 into the inner part of the can body 1 and a positioning plate 24 and a cylinder 23 for positioning the bottom plate 2 in the can body 1. Further, this apparatus is composed of a press means 9, a belt conveyor 26 for carrying out the product and driving means for each mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for crimping a can body and a bottom plate by pressing means.

[0002]

2. Description of the Related Art As a conventional device of this type, as shown in FIG. 14, a lower mold 52 is connected to an air cylinder 61 provided on the column 58 side of a press 57 via a rod 63, and a can Before the body 55 and the bottom plate 56 are curled and crimped by the pressing means, the switch 62 is operated to operate the air cylinder 61 to operate the lower mold 52.
Move to the front side of the table 51 and manually
5 and the bottom plate 56 are set up by the lower mold 52, the outer frame 53 and the inner mold 54. The air cylinder 61 is operated again to draw the lower die 52 under the head 59, and at that position, the head 59 of the press 57 is lowered to crimp the curl bottom.

[0003]

However, in the method of crimping the curl bottom using the conventional device, the can body 55 and the bottom plate 56 are attached to the lower die 52 in order to crimp the can body 55 and the bottom plate 56. There is a problem that it takes a lot of time and the work is dangerous because it requires manual setup and manual operation of the switch 62 for operating the device. Therefore, an object of the present invention is to provide a device capable of solving such a problem.

[0004]

In order to achieve the above object, the present invention conveys a can body in an apparatus for inserting a bottom plate into the can body and integrally curling the can body and the bottom plate by pressing means. A chain conveyor, a holder that holds the can body conveyed by the chain conveyor and supplies it to the next process, a magnet that holds the can body supplied by the holder upward and holds the bottom plate, and a magnet. , A stopper and a cylinder for positioning the body of the can, a chain conveyor provided below each of the above-described components to convey the bottom plate, and an adsorption pad for adsorbing the conveyed bottom plates one by one and receiving them from the chain conveyor. And a cylinder, and a turret that magnetically attaches the bottom plate adsorbed to the adsorption pad to the magnet and rotates to convey the bottom plate below the can body. A lifter plate and a cylinder that push up the bottom plate conveyed by the turret and insert one end into the can body, a cylinder that pushes the other end of the bottom plate horizontally to move it to the can body side, and the other end of the bottom plate. Cylinder that pushes up and inserts inside the can body, positioning plate and cylinder that position the bottom plate inserted into the can body at a predetermined position inside the can body, press means for curling and caulking, and belt for carrying out the product It is characterized by comprising a conveyor and a driving means for automatically operating each of the above mechanisms.

[0005]

According to the upper and lower curl bottom caulking device having the bottom plate automatic insertion mechanism of the present invention, by providing the mechanism for automatically inserting the bottom plate into the can body, the curl bottom caulking work is fully automatic, and the working time is reduced. Is shortened and work is safer.

[0006]

1 to 13 show an embodiment of the present invention, and FIG. 1 is a front view showing a partial internal structure of a vertical curl bottom caulking device having an automatic bottom plate insertion mechanism of the present invention for easy understanding. 2, FIG. 2 is a side view in the direction of arrow A in FIG. 1, FIG. 3 is a side view of a holder for holding a can body, FIG. 4 is a plan view of the holder, FIG. 5 is a perspective view of a turret for carrying a bottom plate, and FIG. Is a view showing a cylinder mechanism provided inside the turret, FIG. 7 to FIG.
FIG. 3 is a diagram showing a bottom plate insertion step.

As shown in FIG. 1 and FIG. 2, on the supply side A of the can body 1, the tables 3 are arranged in two rows in the transport direction with a separation band 3a in the central part. It is supplied to the upper surface of the table 3 across the two rows. A chain conveyor 4 is provided at the separation band 3a of the table 3 and is continuously rotated. The position of the upper surface of the chain conveyor 4 is set so as to be slightly lower than the surface of the table 3 so that the upper surface of the chain conveyor 4 does not contact the lower surface of the supplied can body.

On the upper surface of the chain conveyor 4, a claw 6 is projected from the surface of the table 3, and the can body 1 can be intermittently conveyed to the press 9 side in accordance with the time interval of the claw caulking. It is fixed at intervals.

The end of the chain conveyor 4 (press 9
On the side), there is provided a holder 7 (FIGS. 3 and 4) for horizontally holding the can body 1 transported by the chain conveyor 4 and transporting it to the next step. The holder 7 is a pair of holding plates 1 having a concave holding portion 11a as shown in FIG.
Two sets of a holding mechanism consisting of 1 and a cylinder 10 for holding the can body 1 by moving the holding plate 11 forward are connected via a sliding portion 12 provided on the lower part of the holding mechanism. It is slidable. The holder 7 intermittently reciprocates the can body 1 from the chain conveyor 4 to the surface of the magnet 8 and from the surface of the magnet 8 to the upper and lower molds (not shown) of the press 9 by the driving means described later. While carrying it.

The magnet 8 magnetically attaches the can body 1 conveyed by the holder 7 to keep the bottom plate 2 inserted into the can body 1. The magnet 8 has a surface on which the can body 1 is conveyed. A stopper 41 (FIGS. 1 and 7) for deciding the position is provided so as to project by the operation of the cylinder 40.

The magnet 8 is fixed to the press 9 side via a handle 25 so as to be movable up and down, and the position of the magnet 8 in the height direction can be adjusted by the handle 25 depending on the size of the can body 1 in the height direction. it can. Further cylinder 23
Is fixed to the press 9 side, and when the bottom plate 2 is inserted into the can body 1 magnetically attached to the magnet 8, the positioning plate 24 is moved to the inside of the can body 1 by the operation of the cylinder 23 so that the bottom plate 2 Determine the vertical position.

On the other hand, as shown in FIG. 1, a chain conveyor 13 and a magnet 14 for conveying the bottom plate 2 are provided below the rail 5, and the lower surface of the chain conveyor 13 is located slightly below the lower surface of the magnet 14. When the bottom plate 2 is attracted by the magnetic force of the magnet 14, the end surface of the bottom plate 2 is set to the chain conveyor 13
It contacts the lower surface of the and keeps the suspended state.

The suspended bottom plate 2 is constructed so that it can be carried while being suspended on the surface of the chain conveyor 13 by operating the chain conveyor 13 with a motor 28. In addition, chain conveyor 1
A sensor (not shown) for detecting that the bottom plate 2 has reached the transport end is provided at the transport end of 3, and the operation of the chain conveyor 13 is automatically stopped when the bottom plate 2 reaches the transport end. Is configured.

On the right side of the bottom plate 2 conveyed to the conveying end of the chain conveyor 13, a suction pad 1 for sucking the bottom plate 2 is attached.
5 is provided, and the suction pad 15 is a cylinder 16
The bottom plate 2 is adsorbed to the base plate 2 by advancing and the bottom plate 2 is received from the chain conveyor 13 by retreating.

When the bottom plate 2 is sucked by the suction pad 15, a cylinder 42 provided below the bottom plate 2 for stabilizing the suspended lower plate 2 (FIGS. 1 and 7).
By advancing, it contacts the lower end of the bottom plate 2 and is temporarily fixed. Further, since the suction pad 15 is connected to the cylinder 16 via the spring 17, the suction pad 15 can be soft-touched when the suction pad 15 reaches the surface of the bottom plate 2.

A turret 18 is provided on the front and rear surfaces of the suction pad 15 and the cylinder 16 so as to house them therein. As shown in FIGS. 5 and 6, the turret 18 includes two turrets facing each other. In this structure, straight portions which are perpendicular to each other are provided at four locations on the circumference of the disc, and the magnet 19 is fixed to each of the straight portions.

Then, when the cylinder 16 provided inside the turret 18 is retracted, the bottom plate 2 attracted to the pad 15 is brought into contact with the magnet 19 and magnetically attached to the bottom plate 2 from the pad 15 to the surface of the magnet 19. The bottom plate 2 that has been magnetically adhered to the surface of the magnet 19
By rotating the turret 18 by 90 °, the turret 18 is conveyed upward and is positioned below the can body 1 magnetically attached to the magnet 8. The turret 18 is provided with a mechanism (not shown) for intermittently rotating the bottom plate 2 to convey the bottom plate 2 upward at a required timing.

Below the can body 1 magnetically attached to the magnet 8, as shown in FIG. 6, a lifter plate 22 is provided which is slightly inclined with respect to the horizontal and supports the bottom plate 2 obliquely and pushes it upward. And lifter plate 22
A mechanism of a cylinder 20 and a cylinder 21 for pushing up is built in the turret 18 and is fixed to the base 39 side.

With this structure, the cylinder 20 is moved forward while supporting the bottom plate 2 on the surface of the inclined lifter plate 22, one end of the bottom plate 2 is inserted into the can body 1, and the cylinder 21 is operated at the next timing. The other end of the bottom plate 2 is pushed up so that the entire bottom plate 2 is horizontally inserted into the can body 1.

Before pushing up the other end of the bottom plate 2,
As shown in FIG. 1, a cylinder 38 is provided which pushes the other end of the bottom plate 2 horizontally to move the bottom plate 2 to a position where it can be inserted into the can body 1. Further, the magnet 19 fixed on the circumference of the turret 18 is inclined like the lifter plate 22, and when the turret 18 is rotated and the lower plate 2 is conveyed to the lifter plate 22 side, the bottom plate 2 and the lifter plate 22 are separated. The slopes of the faces are matched.

A press device 9 for curling the bottom of the curl is provided in the central part of the entire apparatus, and a belt conveyor 26 for delivering the product, which has been completed the caulking of the curl bottom, in the direction of arrow B is provided on the right side of the press device 9. In addition, a motor 27 for driving the belt conveyor 26 is provided at one end of the belt conveyor 26.

A motor 29 and an eccentric groove cam 30 are provided below the entire apparatus. The eccentric groove cam 30 is rotated by the drive of the motor 29, and the connection rod 36 and the lever 31 are rotated by the rotation of the eccentric groove cam 30. The above-mentioned holder 7 is intermittently reciprocated at a required timing via the to convey the can body 1. The turret 18 is connected to the chain 3 via the chains 32 and 33 in conjunction with the rotation of the eccentric groove cam 30.
The structure is such that the chain conveyor 4 is driven at a required timing via 2, 34, and 35.

Next, the operation of the vertical curl crimping device having this structure will be described. When the can body 1 and the bottom plate 2 are combined to crimp the curl bottom, first, the height of the magnet 8 for magnetically attaching the can body 1 is adjusted in the vertical direction by the handle 25 to match the size of the can body 1 in the height direction. .

Before supplying the can body 1, the cylinder 23 is kept retracted upward as shown in FIG. 7, and the positioning plate 24 is positioned above the surface of the magnet 8. Further, the cylinder 4 is provided on the lower surface of the magnet 8.
By the operation of 0, the stopper 41 is projected.

Next, the can body 1 is supplied onto the table 3 from the direction of arrow A on the left side of FIG. 1 by any means. The can body 1 on the table 3 is the median strip 3 of the table 3.
It is pushed by the claws 6 of the chain conveyor 4 provided below a and is conveyed to its end.

The transferred can body 1 is shown at 2 in FIG. 3 and FIG.
It is held and conveyed by the upstream holder 7a of the continuous holder 7 and is magnetically attached to the surface of the magnet 8 (FIGS. 7 and 8). At this time, the conveyance position on the surface of the magnet 8 of the can body 1 is limited by the stopper 41 protruding to the lower surface of the magnet 8 as shown in FIG.

On the other hand, below the table 3, the bottom plate 2
Is conveyed to the right end by the operation of the chain conveyor 13 while being attracted to and suspended from the lower surface of the driven chain conveyor 13 by the operation of the chain conveyor 13, and when the right end is reached, the chain conveyor is 13 is stopped.

Next, as shown in FIG. 7, the suction pad 15 advances toward the surface of the bottom plate 2 conveyed to the right end portion by the operation of the cylinder 16 to suck the bottom plate 2. This time,
If the bottom plate 2 is in a suspended and wobbled state, it becomes difficult to adsorb. Therefore, the cylinder 42 is advanced from below the bottom plate 2 to fix the lower end of the bottom plate 2, and at the same time when the adsorption is completed, the cylinder 42 is moved. Retreat to release the fixed state. Since the suction pad 15 is attached to the cylinder 42 side via the spring 17, the surface of the bottom plate 2 can be soft-touched regardless of the forward movement speed of the cylinder 42.

Bottom plate 2 adsorbed by adsorption pad 15
As shown in FIG. 8, when the cylinder 16 is retracted, the magnet is magnetically attached to the magnet 19 provided on the turret 18 and separated from the suction pad 15. Bottom plate 2 magnetically attached to magnet 19
9 is conveyed to an upward position by the rotation of the turret 18 as shown in FIG. At this point, cylinders 20 and 2
1 is in a retracted state, the lifter plate 22 is located below the bottom plate 2 conveyed upward, and is kept in an inclined state.

The bottom plate 2 conveyed upward is lifted by the forward movement of the cylinder 20 as shown in FIG.
The bottom plate 2 is pushed upward with the tilted state, one end of the bottom plate 2 is inserted into the can body 1, and the other end is located below the can body 1. On the other hand, simultaneously with this operation, the suction pad 15 is moved forward by the cylinder 16 and the bottom plate 2 is moved in the same manner as in FIG.
Is adsorbed and the next cycle is started.

The other end of the bottom plate 2 having one end inserted into the can body 1 is pushed horizontally to a position inside the can body 1 by the operation of the cylinder 38 as shown in FIG. As shown, the cylinders 20 and 21 rise together to completely insert the bottom plate 2 into the can body 1 and at the same time the lifter plate 22 becomes horizontal. The inserted bottom plate 2 is sandwiched between the positioning plate 24 and the lifter plate 22, and is kept horizontal in the can body 1 and set at a required position. Simultaneously with this operation, as the next cycle, the bottom plate 2 attracted to the attraction pad 15 by retracting the cylinder 16 moves the magnet 19 to the bottom plate 2.
To be delivered to.

After the bottom plate 2 is inserted into the can body 1, the cylinders 23 and 40 retreat, the positioning plate 24 and the stopper 41 return to above the magnet 8, and the can body 1 in which the bottom plate 2 is completely inserted is a holder. 7 downstream holder 7
It is held by b (FIG. 4) and conveyed between the upper and lower molds (not shown) of the press 9 and crimped at the curl bottom. At the same time, the cylinders 20 and 21 also move backward to enter the next cycle.

The product whose curl bottom crimping has been completed by the press 9 is pushed by the end portion of the holding plate 11 of the holder 7 and is blown by the compressed air jetted from the jet port 43 (FIG. 1) to cause the belt conveyor 26 to move. It is conveyed upward, and is conveyed to the conveying end by the belt conveyor 26 and is collected.

As the driving means in the above steps, the eccentric groove cam 30 is rotated by driving a motor 29 provided below the apparatus in FIG.
6, the holder 7 is intermittently moved through the lever 31 and the lever 7, and the can body 1 is sent to the next step at a required timing. Further, the intermittent rotation motion mechanism built into the turret is activated through the chains 32 and 33. The chain conveyor 4 is operated via the chains 32, 34 and 35.

Chain conveyor 13 for conveying the bottom plate 2
Is driven by a motor 28, and the belt conveyor 26 is independently driven by a motor 27. Further, the operation of all cylinders and the ejection of compressed air are performed by an air system (not shown) provided separately. In addition, in the vertical curl bottom caulking device provided with the bottom plate automatic insertion mechanism of the present invention, the bottom plate 2 can be inserted from the top.

[0036]

According to the present invention, by providing a mechanism for automatically inserting the bottom plate into the can body, the operation from the end of curling and caulking of the bottom plate to the delivery as a product is fully automatic. It saves time and makes it possible to work safely.

[Brief description of drawings]

FIG. 1 is a front view of an upper and lower curl bottom caulking device equipped with a bottom plate automatic insertion mechanism of the present invention.

FIG. 2 is a side view in the direction of arrow A in FIG.

FIG. 3 is a side view of the holder.

FIG. 4 is a plan view of a holder.

FIG. 5 is a perspective view of a turret.

FIG. 6 is a view showing a cylinder mechanism provided inside a turret.

FIG. 7 is a diagram showing a bottom plate insertion step.

FIG. 8 is a diagram showing a bottom plate insertion step.

FIG. 9 is a diagram showing a bottom plate insertion step.

FIG. 10 is a diagram showing a bottom plate insertion step.

FIG. 11 is a diagram showing a bottom plate insertion step.

FIG. 12 is a diagram showing a bottom plate insertion step.

FIG. 13 is a diagram showing a bottom plate insertion step.

FIG. 14 is a view showing a conventional curl bottom caulking device.

[Explanation of reference symbols] 1 can body 2 bottom plate 3 table 4,13 chain conveyor 5 rail 6 claw 7 holder 8 magnet 9 press 10, 16, 20, 21, 23, 38, 40, 42 cylinder 11 holding plate 12 sliding Part 14, 19 Magnet 15 Adsorption pad 17 Spring 18 Turret 22 Lifter plate 24 Positioning plate 25 Handle 26 Belt conveyor 27, 28, 29, 44 Motor 30 Eccentric groove cam 31 Lever 32, 33, 34, 35 Chain 36 Connecting rod 39 Base 41 Stopper 43 Jet

Claims (1)

[Claims] 1. A device for inserting a bottom plate into a can body and curling the can body and the bottom plate together by pressing means, holding a chain conveyor for conveying the can body and a can body conveyed by the chain conveyor. Then, a holder for supplying to the next step, a magnet for adsorbing the can body supplied by the holder upward and holding the bottom plate for insertion, and a stopper and a cylinder for positioning the can body on the surface of the magnet. , A chain conveyor provided below each of the above-mentioned components to convey a bottom plate, an adsorption pad and a cylinder for adsorbing the conveyed bottom plates one by one and receiving them from the chain conveyor, and a bottom plate attracted to the adsorption pad to a magnet. The turret that wears and receives and rotates to convey the bottom plate to the lower part of the can body, and the bottom plate that is conveyed by the turret are pushed up and raised. A lifter plate and a cylinder that insert one end into the can body, a cylinder that pushes the other end of the bottom plate horizontally to move it to the can body side, and a cylinder that pushes the other end of the bottom plate up and inserts it into the can body. A positioning plate and a cylinder for positioning the bottom plate inserted in the can body at a predetermined position in the can body, a press means for curling and caulking, and a belt conveyor for carrying out a product,
An upper and lower curl bottom caulking device having a bottom plate automatic insertion mechanism, characterized in that it comprises a driving means for automatically operating each of the above mechanisms.