JPS59142905A - Device for feeding and bonding cover - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lid supply bonding device, and in particular, it supplies a lid to a container with a suction cup and heat-welds the lid to the container by pressing the supplied lid with a heated steel. To reduce the cost of a conveyor for conveying containers by preventing displacement of a lid with respect to a container, thereby eliminating the need for a structure for preventing displacement of the lid on a conveyor for conveying containers.

For example, as a device for supplying a lid to a container,
There is one described in Japanese Patent No. 26044. This device uses a suction cup moving device to move the suction cup between the lid storage area and the top of the container, thereby supplying the lid from the lid storage area to the top of the container, and the lids are sequentially conveyed by a conveyor. The lids are supplied sequentially and separately to the containers to be used.

The conveyor is provided with a protrusion for preventing displacement so that the lid supplied to the top surface of the container will not be displaced during conveyance of the container. As such a conveyor, for example,
There is a conveyor as described in Japanese Patent No. 41014, in which a protrusion is installed on the upper surface of the conveyor and is biased by a spring in the protruding direction. Then, when the member that presses the lid to fit or heat-weld the lid to the container descends to the upper surface of the container, as the member descends to the upper surface of the container.

The protrusion also descends as the spring is compressed.

However, in such conventional conveyors,
In order to provide several protrusions per container, a huge number of protrusions are required for the conveyor as a whole, and as a result, the number of holes, springs, etc. for the protrusions made on the conveyor is also enormous. There were defects that increased the number of conveyor parts and assembly man-hours, and also increased costs. Furthermore, as a means of fixing the lid to the container being conveyed by such a conveyor, a thermofusible resin is coated on the bottom of the lid or on the top of the container, and a member that presses from the top of the lid is used to superimpose the thermofusible resin. The lid may be bonded to the container by applying sonic vibration and heating and melting it. However, in this case, the pressing part presses the protrusion of the conveyor, compressing the spring, and applies ultrasonic vibration to the spring via the protrusion, causing the spring to break or deteriorate. may be done. For this reason, a conveyor provided with such a projection is not suitable for conveying containers whose lids are thermally welded by ultrasonic imaging.

Therefore, this invention was made by paying attention to such conventional problems, and its purpose is to prevent the lid of the weighing device from shifting during transportation; The object of the present invention is to simplify the structure and assembly of a conveyor for conveying containers supplied with lids, thereby reducing its cost.

That is, as shown in the figure, the present invention includes a suction cup 2 that attracts the lid 1, and a suction cup moving device 4 that moves the suction cup 2f between the lid storage part and the upper side of the container 6. In this device, the suction cup 2 that has suctioned the lid 1 is moved to the upper side of the container B, which is transported separately, and the suction cup 2 and the container are made to face each other and relatively approach each other, thereby supplying the lid 1 to the top surface of the container 3. A heat-melting material is applied to at least one of the lower surface of the container 1 and the upper surface of the container B, and a heating iron 5 is installed so as to be movable relative to the upper surface of the container 6. The present invention relates to a lid supply bonding device characterized in that a trowel operating mechanism 6 is provided which presses the upper surface of the rosette 1 with a heating trowel 5 when it is supplied.

Next, the present invention will be explained according to actual Mlj examples shown in FIGS. 1 to 6.

In other words, a main shaft 8 that rotates intermittently at an angle of 180 degrees is hung approximately horizontally on a machine frame 9, and a cylinder (not shown in the figure) fixed coaxially within the main shaft 8 and its piston rod (not shown in the figure) and a swinging arm 10 that is pivotally connected to the piston rod and that rises and falls on the outside of the main shaft 8, the reciprocating member 11 is attached to the main shaft 8 in parallel to and toward and away from the main shaft 8. A suction pipe 12 is attached to the reciprocating part paulownia 11 on the side far from the main shaft 8, and a suction cup 2 is fixed to the tip of the suction pipe 12.

A total of two advance/retreat parts 11 are attached above and below the main shaft 8, and the suction pipe 12 is attached to each advance/retreat part control.
are attached, and each of the reciprocating members 11 engages with a guide rod 16 erected on the main shaft 8, and is guided by the guide rod 16 to perform the approaching and retracting movements.

When the two reciprocating members 11 are at the upper and lower positions of the main shaft 8 facing each other, the swinging arm 10 is raised and lowered by the cylinder to move the reciprocating members 11 far from the main shaft 8, and then Both advancing and retreating members 11 are brought closer to the main shaft 8. After that, the main shaft "8" rotates 180 degrees to reverse the vertical position of the two advancing/retracting parts paulownia 11, and repeats step 1. The retracting member 11 is advanced and retracted as described above. The suction eve 12 is connected to a suction device (not shown), and is configured to generate and release suction force in the suction cup 2 in accordance with the movement of the reciprocating portion 11.

That is, from the time when the suction cup 2 is facing upward and is raised by the advancing/retracting member 11 until the time when the suction cup 1j:(2 is facing downward and being lowered by the advancing/retracting member 11), the suction cup 2 is
This is to create an attractive force.

Although not shown, above the main shaft 8, a horizontal frame is constructed on the frame frame 9, and on this horizontal frame Ml made of paper, synthetic resin plates, thin metal plates, etc. is laminated inside the case. This forms the storage part for the lid 1. A conveyor 15 is attached to the machine base 14 below the main shaft 8. At both ends, a large number of chenos 18 are connected in series to secure an endless shape, and the chenos 18 are guided by rails 19. Plate body 17
Hole 16. A container 6 containing food or the like is fitted into the container and transported.

Therefore, the suction cup 2 starts suction when it comes close to the storage section above the main shaft 8, sucks the lid 1 here, and releases the suction when it reaches the top surface of the container 3 conveyed by the conveyor 15. Then, the lid 1 is supplied onto the top surface of the container 6. Thus, in this embodiment, the main shaft 8, the cylinder and piston condo provided thereon, the swinging arm 10 connected to the piston condo, the reciprocating member 11, the guide rod 16,
The suction pipe 12 constitutes a suction cup moving device 4.

In this embodiment, the suction cup moving device 4 is almost the same as that described in the above-mentioned Japanese Patent Publication No. 55-26044, but the suction cup 2 is moved between the lid storage part and the upper side of the container 6. Other structures can also be used as long as they have a structure that allows movement.

21 is a support frame, between the main shaft 8 and the conveyor 17,
The support frame 21 is installed so as to be able to be raised and lowered by a lift frame 22, and the support frame 21 is provided with heating irons 5 at peripheral positions of the lid 1 reaching the upper surface of the container 6, which are pushed in opposite directions via suction cups 2. is supported. Although I:A is not shown, the heating iron 5 is connected to a power source and heated by electrical energy.

The support frame 21 is fixed to the lower end piece 22a of the lifting frame 22, and the vertical axis 22b of the lifting frame 22 passes through a bracket 26 fixed to the machine frame 9 so as to be able to rise and fall freely. , is biased to the raised position by a spring 24 fitted onto the outside. An input section 22d for inputting a downward pressing force is formed on the upper end piece 22c of the lifting frame 22, and a suppression roller 25 that moves integrally with the forward/backward member 11 is in pressure contact with this manual section 22d. The lifting frame 22 moves down against the spring 24 due to the downward pressing force of the suppression roller 25, lowering the support frame 21 and lowering the heating iron 5. Ru. When the pressing force of the pressing roller 25 is released,
The lifting frame 2'6 and the support frame 21 are raised by the spring 24, and the heating iron 5 is raised to the position shown in FIG. Thus, the suppression roller 25, the lifting frame 26, the spring 24, and the support frame 2
1 forms a trowel operating mechanism 6. The pressing roller 25 is freely supported by a bolt 27 on a bracket 26 that slidably supports the reciprocating member 11 over the guide rod 16.

Another pressure roller 28 is rotatably attached to the tip of the guide rod 16, and a cam 29 is fixed to a portion of the support frame 21 that is in contact with the pressure roller 28. At the raised position of the heat trowel 5, the suction cup 2 facilitates the pivoting movement of the canopy 1, so that when the lid 1 rotates, the lid 1 and the trowel 5 are moved together.

Leave a space between 5 and 5 as shown in Figure 1.

Therefore, in order to eliminate this vertical gap and bring the trowel 5 into contact with the top surface of the lid 1, a pressure roller 28 or a knob 29 is pressed to push down the support frame 21 at the position shown in FIG. It is. Pressing roller 25 and input = u 22 a of Ait record trowel/operating mechanism B, this pressing roller 28 and cam 2
9 has the same effect in this respect, so if only the former is sufficient, the errant can be omitted.

It goes without saying that the bottom surface of the lid 1 or the top surface of the container 6 is coated with a heat-melting material in advance.

Next, the operation of this embodiment will be explained.

In this embodiment, each component is roughly classified into one type of movement. The first is the main shaft 8, the guide rod 16, and the pressure roller 2.
8, and these rotate 414 (414) integrally with the main shaft 8 as the main shaft 80 rotates intermittently every 180 degrees.
and a pressing roller 25, which not only rotate intermittently integrally with the main shaft 8 in accordance with the first intermittent rotation, but also move the reciprocating member 11 toward the main shaft 8 as the swinging arm 10 rises and falls. It moves up and down in unison with the near-IY-separation movement.

The third is the lifting frame 22, the support frame 21, and the heating iron 5, which move up and down in conjunction with the second lifting movement. 4. The conveyor 15 is used to convey the container 6 by intermittently moving in the direction perpendicular to the figure in FIG. In addition, the lid 1 is temporarily fixed using a heating iron 5.

Therefore, the procedure for taking out the lid 1 from the lid storage r';is (l in the figure) located above the main shaft 8, supplying it to the container 1, and temporarily fixing it will be described below.

The suction cup 2, which has turned upward due to the rotation of the main shaft 8, is moved by the swinging arm 1.
0 rises, the reciprocating member 11 rises as the suction pipe 12 rises, starts suction, and attracts the lid 1 at the bottom of the lids stacked in the storage section. Next, the swinging arm 1
0 faces down, the suction cup 2 descends together with the reciprocating member 11 and the suction pipe 12, and takes out the suctioned lid 1 from the storage section.

If the swinging arm 10 does not rise and fall, the storage section may be configured to descend to the suction cup, and Ml may be attracted to the suction cup by lowering the storage section.

Next, due to the rotation of the main shaft 8, the suction cup 2, which has attracted the lid 1, pivots below the main shaft 8 and reaches the upper side of the container B. At this time, the pressing rollers 25 and 28 also rotate together, and the pressing roller 25 presses down the support frame 21 by pressing down the lifting frame 22 as shown in FIG. 2, and the pressing roller 28 moves as shown in FIG. The support frame 21 is pushed down as shown, thereby pushing the support frame 21 down from the position shown in FIG. 4 to the position shown in FIG.

Then, the heated tin 5, which has been heated in advance, comes into contact with the top surface of the lid 1, which is sucked by the suction cup 2, and begins to point-heat two places on the lid 1.

Next, as the swinging arm 10 rises, the reciprocating member 11 descends. As a result, the suction cup 2 descends while adsorbing the lid 1, while the pressing roller 25 presses down the elevating frame 22, presses down the support frame 21, and thereby presses down the heated tin 5. The lowering of the suction cup 2 and the lowering of the hot trowel 5 are both caused by the advancing and retracting member 11.
Since they are at the same distance, the suction cup 2, the heating tin 5, and the lid 1 descend together at the upper surface of the container 6, which is stopped due to intermittent movement. As a result, the suction cup 2 supplies the lid 1 to the upper surface of the container 3, and the heating tin 5 presses the lid 1 on the container 6 while heating it from the upper surface, melting the thermofusible material between the lid 1 and the container 6. By doing so, the lid 1 is point-welded to the container 6. This completes the supply of the lid 1 to the container B and the second step. In addition,
The reciprocating member 11 is not lowered, so the suction cup 2, the lid 1.
! The container 6 may be raised without lowering the container 55 from the state shown in FIG. The container B may be raised from the bottom of the container B by a lifting drive device using a shilling device or the like, or the conveyor 15 may be raised.

Next, at the same time as releasing the suction of the suction cup 2, the swinging arm 10
is placed face down, and the suction cup 2 and heating tin 5 begin to rise, performing the opposite operation to the above. Note that the advancing/retracting member 11 on the opposite side of the main shaft 8
, the suction cup 2, etc. have the same effect as described above, with a rotational deviation of 180 degrees.

The container 6 to which the lid 1 is supplied and temporarily secured is transferred to the conveyor 1
5, the lid 1 is transported to the next step, where the lid 1 is heat-sealed. Various known means may be used as the heating sealing means, but instead of the above-mentioned temporary fixing, the shape of the heated tin 5 may be changed to seal the lid 1 with the heated tin. Thereby, the next heat sealing step can be omitted.

The rotational direction of the main shaft 8 may be a reciprocating rotation of 180 degrees, or may be an intermittent rotation of every 180 degrees in the same direction. Further, the number of points welded by the heated tin 5 may be three to four. If you increase the welding location or welding area,
It is also possible to prevent the lid 1 from warping during the next process.

Figures 7 and 8 show other embodiments, in which the suction cup 2
, the suction cup moving device 4, the lid 1, the conveyor 15, and the container 6 are the same as those in the previous embodiment. The two heating tins 5 are each integrally attached to the tip of the arm 60, and although not shown,
The heated tin 5 is provided with heating means using electrical energy. The arm 60 is connected to a shilling device 61 and causes the heated tin 5 to move in the same manner at the same timing as in the previous embodiment. Instead of the cylinder device 31, it is also possible to adopt a structure that performs constant reciprocating motion, such as a link mechanism or a cam mechanism. In this example, arm 3
0 and the cylinder device 61 constitute a body movement mechanism 6.

As explained above, according to the present invention, the lid taken out by suction in the lid storage section by the suction cup is moved to the upper side of the container while being suctioned by the suction cup by the suction cup moving device. The lid is supplied to the container by moving the lid relative to the tin, and the lid can be welded to the container.

Therefore, since the lid is fixed to the container immediately after being supplied to the container, it will not be displaced from the container during transportation of the container.

Therefore, according to the present invention, a conveyor for conveying containers has a huge number of holes and a huge number of protrusions that engage with the holes in order to prevent the lids supplied from shifting. Since there is no need to provide the same number of springs to make each projection 9 freely retractable, the structure, processing, and assembly process of the conveyor can be simplified, contributing to a reduction in the cost of the conveyor. In addition, since the spring is not used, even if ultrasonic vibration is applied during the lid sealing process, the conveyor will not malfunction due to damage or deterioration of the spring.Furthermore, since there are no protrusions on the conveyor, the container will not be in contact with the conveyor. There are no obstacles to supplying containers, lids, and items, making work smoother.

[Brief explanation of the drawing]

1 to 6 are views showing one embodiment of the present invention, FIG. 1 is a partially cutaway front view, and FIG. 2 is a partially cutaway front view.
3 is a m-mm sectional view of FIG. 1, FIG. 4 is a partial front view when the lid reaches the top of the container, and FIG.
The figure is a plan view of the heating iron and its support frame, Figure 6 is a front view of the state in which the lid is supplied to the container and the shoe is welded, and Figure 7 is the
A side view of another embodiment, FIG. 8 is a plan view of FIG. 7. 1... Lid, 2... Suction cup, 6... Container, 4... Suction cup moving device, 5... Heating trowel, 6... Trowel operating mechanism Patent applicant Tomito Seisakusho Co., Ltd. Agent Patent attorney Tetsuya Mori, patent attorney, Yoshiaki Naito, patent attorney, Shimizu, patent attorney, Joze Kajiyama, patent attorney

Claims (1)

[Claims] It is equipped with a suction cup that suctions the lid and a suction cup moving device that moves the suction cup between the lid storage part and the upper side 1 of the container. In this device, a suction cup and a container are moved relatively close to each other so as to face each other, thereby supplying a lid to the top of the container. A lid supply bonding device characterized in that a heating steel is installed so as to be relatively movable, and the heating steel is provided with a trowel operation mechanism that presses the top surface of the lid with the heated steel when a suction cup supplies the lid to the top surface of the container. .