JPH0348087Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an apparatus for conveying a can body whose inner surface is coated with undried paint by a coating device.

(Prior art) Conventionally, can bodies used for canned goods, etc. are coated with coating equipment.
After the liquid paint is spray-coated on the inner surface, it falls under its own weight and is fed out by a shooter, and is sequentially transported by a conveying device to a drying/opening device, where the paint on the inner surface is heated and dried.

However, when the can body is conveyed in a stationary state by the conveyance device after the paint is applied by the coating device and fed out from the shooter, it is conveyed in a stationary state by the conveyance device, the liquid paint sprayed on the inside surface is not dried and flows down. There is a problem in that the paint dries during transportation, causing paint unevenness on the inner surface. As one method for preventing paint unevenness on the inner surface of the can body during such transportation, as shown in FIGS. A pair of moving members c are arranged in parallel at a predetermined interval at a lower position, and a pressure contacting member e that presses the side surface d of the can body a from above is provided opposite to the moving member c. Using a conveying device, which is provided with a top guide g that contacts the open end f of the can body a, and a bottom guide i that contacts the bottom h of the can body a, at each side position, the can body a is moved by the moving member c. While the can body A was placed and moved, the side surface d of the can body A was pressed from above by the pressure contact member e, so that the can body A was rolled around its axis.

When such a device is used, the can body a rolls during transportation, which prevents the paint applied to the inner surface from flowing down, and even when the paint dries, no uneven paint occurs.
However, since the can body a is held between the top guide g and the bottom guide i to prevent lateral displacement during rolling, the open end f always rolls in contact with the top guide g. The undried paint applied to part f moves to the top guide g in its liquid state and grows to a diameter of 0.5 mm.
The spherical paint solids of 2 mm to 2 mm become so-called lumps and re-adhere to the open end f of another rolling can body a.
Therefore, if a can body a with a bump reattached to the open end f is used, wrinkles may occur during the neck-in process of the open end f, or unreasonable force may be applied to the flange when forming the flange or tightening the lid. If cracks occur and lumps get into the seams with the lid, the sealing performance will deteriorate and the contents will leak, and if lumps get mixed into the contents, problems such as deterioration of the flavor of the contents will occur.

Furthermore, when the open end f of the can body a is pressed by the pressure contact member e, the open end f is bent and deformed, which causes the problem that the can body a does not roll smoothly.

(Problems to be Solved by the Invention) The present invention solves such conventional problems, prevents the paint applied to the inner surface from flowing down, prevents uneven paint from occurring, and furthermore allows the spherical paint to be applied to the open end of the can body. It is an object of the present invention to provide a device that can transport can bodies while rolling them in an efficient and orderly manner without causing solid matter to re-adhere.

(Means for Solving the Problems) The present invention has been made to solve the above-mentioned problems, and is applicable to can bodies in which the paint coated on the inner surface by a coating device is not dried. , suction means for the can body is provided at a side position of the conveyance path for conveying the can body from the upstream side to the downstream side in a lying state and along a position facing the bottom of the can body, and at a position below the conveyance path. A moving member for moving the can body in a lying state is provided, a pressure contact member that presses the side surface of the can body from above is installed opposite the moving member from half the length of the can body toward the bottom, and the can body is moved by the moving member. The can body is characterized by rolling around its axis when the can body is pressed against the can body by a pressure welding member.

(Example) The present invention will be explained below with reference to the drawings.

1 to 3 show one example of implementing the present invention.

In the drawings, 1 is a suction means, 2 is a moving member, and 3 is a pressure member.

The suction means 1 is a can body 6 in the form of a cylinder with a bottom, which is formed by drawing a thin aluminum plate material and has an open end 4 at one end of the body and a bottom 5 at the other end in a lying state. It is provided at a side position of the conveyance path 7 that conveys from the upstream side to the downstream side with respect to the conveyance direction X, and at a position facing the bottom part 5 of the can body 6. In the illustrated example, the suction means 1 is attached to a side wall 9 of a cylindrical body 8 having a rectangular cross section with both ends closed.
A groove-shaped opening 10 is bored along the length direction, and the air pressure inside the cylindrical body 8 is reduced by a suction pump (not shown) via a draft 12 with a damper 11 in a part of the opening 10. Then, a suction action was created to draw the bottom part 5 of the can body 6 to the side wall 9.

The moving member 2 includes a pair of ropes 1 disposed in parallel at a predetermined interval at a lower position of a conveyance path 7 that conveys the can body 6 from the upstream side to the downstream side with respect to the conveyance direction X.
The rope conveyor 14 consists of three parts. In the illustrated example, the rope conveyor 14 is installed between a pair of support stands 15 each having a rope 13 disposed above and a pair of return pulleys 16 disposed below, and the can body 6 is placed in a lying state on the rope conveyor. 1
The can body 6 is placed between a pair of ropes 13 of No. 4, so that the can body 6 can be moved in the transport direction X as the ropes 13 move.

The pressing member 3 is a rope 17 disposed above the movable member 2 and facing the movable member 2 . Then, a rope 17 is installed on the lower end of a spring 18 provided closer to the bottom 5 than half of the length L of the can body 6, and the elastic force of the spring 18 places the rope 17 on the pair of ropes 13 of the movable member 2. The side surface 19 of the can body 6 is pressed from above.

Then, the can body 6 is placed on the moving member 2, and the can body 6 is moved from the upstream side to the downstream side in the conveyance direction X.
When the side surface 19 of the can body 6 is pressed from above by the pressure contact member 3, the can body 6 is made to roll around its axis.

When doing this, use the coating device 2 as shown in the first diagram.
The can body 6, whose inner surface has been spray-coated with paint in a lying state by 0, falls under its own weight and is fed out from the shooter 21, is placed in a lying state on a moving member 2 that moves from upstream to downstream in the moving direction Place it. Since the suction means 1 for the can body 6 is provided at a position on the side of the conveyance path 7 and facing the bottom 5 of the can body 6, the bottom 5 of the can body 6 is sucked by the suction means 1. Moving member 2 and pressure contact member 3
There is no horizontal fluctuation between the two. Furthermore, since the open end 4 side of the can body 6 is open, it is possible to prevent the undried paint at the open end 4 from adhering to the top guide as in the conventional case, and to prevent so-called spherical paint solids from adhering to the open end 4. No lumps will reattach. Therefore, the opening end 4 of the can body 6 can be threaded or flanged, and the lid can be closed without any problems, and the sealing performance of the container and the flavor of the contents can be prevented from deteriorating.

Further, a moving member 2 is provided at a lower position of the conveyance path 7,
Since the pressing member 3 is attached to the moving member 2, by pressing the side surface 19 of the can body 6 moved by the moving member 2 from above with the pressing member 3, the can body 6 is drawn by the suction means 1 and is centered around its axis. Since the paint is forcibly rolled, it is possible to prevent the paint applied to the inner surface from flowing down, and even if the paint dries while being conveyed through the conveyance path 7, no uneven paint will occur.

Furthermore, since the pressure contact member 3 is provided closer to the bottom 5 than half of the length L of the can body 6, the can body 6 is closer to the pressure contact member 3.
Even when pressed together, the can body 6 can be reliably rolled without giving any bending deformation to the open end 4 side.

In the illustrated embodiment, the rope conveyor 14 consisting of a pair of ropes 13 is used for the moving member 2, so by adjusting the distance between the ropes 13, can bodies 6 of different heights can be placed on the moving member 2. can be placed.

Further, in the illustrated embodiment, the opening 10 formed in the side wall 9 of the cylindrical body 8 of the suction means 1 is formed in the shape of a groove.
The holes may be formed at regular intervals in the length direction.

Furthermore, in the illustrated embodiment, the suction means 1 is of a suction type using reduced air pressure, but a magnet device consisting of a permanent magnet or an electromagnet is provided along a position facing the bottom 5 of the can body 6, and the can body is moved by the magnetic force of the magnet device. 6 may be sucked.

(Effect of the invention) As described above, according to the present invention, the can body is conveyed from the upstream side to the downstream side in a lying state along the side position of the conveyance path and at the position facing the bottom part 5 of the can body. A suction means for the can body is provided, a moving member for moving the can body in a lying position is provided at a lower position on the conveyance path, and a pressure contact member that presses the side of the can body from above is moved closer to the bottom than half the length of the can body. The can body is disposed opposite to the movable member, and when the can body is moved by the movable member and pressed against the pressure contact member, the can body is caused to roll around its axis.

Therefore, a suction means for suctioning the bottom of the can body is provided at a side position of the conveyance path, so that the bottom of the can body coated with paint on the inner surface by the coating device, dropped from the chute, and fed out is suctioned by the suction means. The can body can roll between the moving member and the pressure member without lateral wobbling, and since the open end side of the can body is open, undried paint at the open end does not adhere to other equipment. It is possible to prevent the film from being stained or re-adhered from other devices. In addition, since the movable member and the pressure contact member are disposed opposite each other, the can body is moved by the movable member and the side surface is pressed from above by the pressure contact member, so that the can body is forcibly rolled, which removes the paint applied to the inner surface. It is possible to prevent run-off and paint unevenness, and since the pressure welding member is located closer to the bottom than half the length of the can body, the can body can be rolled reliably without bending and deforming the open end side. The present invention has the advantage of providing a can body conveying device that can efficiently and orderly roll can bodies without stopping them and convey them to a drying oven.

[Brief explanation of the drawing]

Figures 1 to 3 show an example of the implementation of the present invention. Figure 1 is a partially omitted side view, Figure 2 is a cross-sectional view taken along the line - - of Figure 1, and Figure 3 is a view of Figure 2. FIG. 4 is a partially omitted side view of the conventional device, and FIG. 5 is a cross-sectional view taken along the line -- in FIG. 4. DESCRIPTION OF SYMBOLS 1... Suction means, 2... Moving member, 3... Pressing member, 5... Bottom, 6... Can body, 7... Conveyance path, 19... Side, 20... Painting device, L... Can body length.

Claims (1)

[Scope of utility model registration request] In a device that transports can bodies whose inner surfaces are coated with paint that has not yet dried, a position on the side of the conveyance path that transports the can bodies in a lying state from the upstream side to the downstream side, and at the bottom of the can bodies. A suction means for the can body is provided along the position facing the can body, a moving member for moving the can body in a lying position is provided at a position below the conveyance path, and a pressure contact member for pressing the side surface of the can body from above is provided along the length of the can body. A conveying device for a can body, characterized in that a moving member is disposed opposite to the bottom of the can body, and the can body is caused to roll around its axis when the can body is moved by the moving member and pressed against the pressure contact member. .