JP2584722Y2 - Container sealing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for sealing a container filled with a liquid such as a dessert such as jelly.

[0002]

2. Description of the Related Art As an apparatus of this kind, there are an intermittently driven container transporting device for transporting containers so as to be sequentially stopped at a sealing station, and an intermittently driven lid material transporting device for transporting a band-shaped lid material via a sealing station. And a sealing and trimming device for sealing the lid material at the edge of the container at the sealing station and trimming the lid material along the seal portion when the transfer device stops the transfer of the lid material. Have been.

[0003]

In the above-mentioned apparatus, the remaining lid member forming the lid may be caught on the lid or the rim of the container. Even if the transfer device tries to start the transfer of the lid material in this state, the catch does not come off smoothly because the transfer force acting on the lid material is in the direction to the lid material, and the lid material is smooth because of the catch. There was a problem that it was not transferred.

[0004] It is an object of the present invention to provide a container sealing device capable of smoothly transferring the remaining lid member formed with a lid.

[0005]

SUMMARY OF THE INVENTION A container sealing device according to the present invention includes an intermittently driven container transfer device for transferring containers so as to be sequentially stopped at a sealing station, and an intermittent driving device for transferring a band-shaped lid member via a sealing station. A lid is formed by sealing the lid at the container rim at the sealing station and cutting the lid F along the seal at the sealing station when the transport is stopped. Lifting head
Trimming device having a lid and a lid from a lifting head
Lids respectively located upstream and downstream of the material transfer path
Engage the material from above and stop at the sealing station
A pair of guides to guide the lid between the
The sealing device of a container and a Dror, both moth
A level connecting the lower ends of both guide rolls between
Are arranged so that they can descend to below
From the lower side with the lid guided between the guide rolls.
And the sealing and trimming device cut the lid.
Before cutting, lower the lifting member and
After the cutting device cuts the cover, the transfer device starts transferring the cover
And lifting means for raising the pulling member before the lifting .

[0006]

The container sealing device according to the present invention has two guides.
The level connecting the lower ends of both guide rolls between rolls
Both guides are arranged so that they can be lowered
Engage from below with lid material guided between drolls
The lifting member and the seal trimming device cut the lid material.
Before lifting, lower the lifting member to
After the machine cuts the lid, the transfer device starts the lid transfer
Before, the lifting means for raising the lifting member is provided, so that the lifting member is located on the lower side of the remaining lid material forming the lid.
In this case, pull up the lid,
Since the upward force is applied orthogonally, even if the remaining lid material forming the lid is hooked on the lid or the edge of the container, the hook is smoothly removed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the container sealing device includes an intermittently driven horizontal turntable 11 for transporting a container C so as to be sequentially stopped at a plurality of processing stations including a sealing station S, and a roll-shaped lid member L. , And a sealing / trimming device 13 disposed at the sealing station S, and immediately before sealing by the sealing / trimming device 13, the cover material L is filled with the filling liquid. And a pressing device 14 for pressing the lid L down to a position where it can be brought into contact with the surface of the cover L.

Referring to FIG. 2, a number of holders 21 are provided near the outer periphery of the turntable 11. Each holder
21 has a container holding hole 22. A deformed annular cutter relief groove 23 is provided along the upper end opening edge of the holding hole 22. The flange F of the cup-shaped container C is received inside the cutter escape groove 23.

Referring again to FIG. 1, the transfer device 12 includes a rewinder located outside the sealing station S.
31, a winder 32 disposed above the sealing station S, and a cover material L from the rewinder 31, and after passing the unwound cover material L over the container transport path at the seal station S, the winder It consists of a group of rolls that guide up to 32. The roll group includes a rewind-side dancer roll 33 and a feed pinch roll 34 arranged on the transfer path from the rewinder 31 to the seal station S, and a transfer path from the seal station S to the winder 32 on the transfer path. And a plurality of guide roll groups arranged at appropriate positions on the transfer path from the rewinder 31 to the winder 32. The guide roll group includes inner and outer seal station guide rolls 36 and 37 for guiding the lid L to move from outside to inside just above the holder 21 stopped at the seal station S.

The sealing / trimming device 13 is a head lifting / lowering fluid mounted vertically downward on the lower surface of a horizontal support plate 42 protruding above a peripheral edge of the turntable 11 from a support box 41 provided outside the seal station S. It comprises a pressure cylinder 43 and a seal head 44 attached to the piston rod of the cylinder 43. A pair of hanging head guide rods 45 are provided on both sides of the cylinder of the support plate 42.

As shown in detail in FIG. 2, the seal head 44 is provided on the rod of the head lifting / lowering cylinder 43, and is removably connected to the rod by a joint and penetrates the head guide rod 45 slidably. A lower elevating plate 54 suspended from the elevating plate 51 by a connecting rod 52 and provided with a heater insertion hole 53; A press plate 55 suspended in the press plate 55, a cylindrical heater 56 attached to the press plate 55 in a suspended manner and having a small diameter portion passed through the heater insertion hole 53, and a press plate so as to fit in the heater 56.
Vertical rod-shaped lid pushing member mounted in a suspended manner on 55
57, a cylindrical cutter 58 having a circular cross section deformed in a hanging manner at the edge of the heater insertion hole 53 so as to surround the small diameter portion of the heater 56 with a slight gap, and an elasticity from the lower lifting plate 54. And a horizontal plate-like lid material presser 61 having three cutter insertion holes 59.

Referring to FIG. 3 in addition to FIG. 2, the pressing device 14 includes a pair of horizontal strips disposed so as to be located between the lid presser 61 and the inner and outer seal station guide rolls 36 and 37. The push-down member 62, an upwardly-guided push-down member lifting / lowering fluid pressure cylinder 64 in which a piston rod is connected to a gate-shaped bracket 63 straddled at one end of both push-down members 62, and a body side of the cylinder 64. And a support arm 65 fixed to the inner side wall of the support box 41 in a cantilever shape protruding inward.

The lower edges of both the pressing members 62 are rounded. A pair of horizontal round bar pull-up members 66 are suspended from the both pressing members 62 via brackets 67, respectively. There is a cover material passage interval between the pressing members 62 and the lifting member 66, and the cover material L guided to the sealing station S is passed through these gaps. One end of each of the seal station guide rolls 36 and 37 is supported by the support arm 65.

Referring to FIG. 4a, container C is full of liquid. The filling liquid is a raw material of jelly before hardening. The filling liquid rises from the container C due to its surface tension. The lid member L is made of a plastic film such as polyethylene, and has good wettability to the filling liquid.

When the container C is carried into the sealing station S, before the seal head 44 is lowered, both the pressing members 62 are lowered by the operation of the hydraulic cylinder 64 for raising and lowering the pressing members. The push-down member 62 pushes the lid L down to a position where it comes into contact with the surface of the filling liquid. Cover material L on the surface of the filling liquid
Is contacted, the filling liquid spreads instantaneously along the lower surface of the lid member L, and there is no air layer between the filling liquid and the lid member L (FIG. 4B).

When the lid member L is pushed down by the pushing member 62, the portion of the lid member L above the container C is shifted rightward by a length corresponding to the pushed-down height (arrow in FIG. 4B). When the lid material L is pushed down, even if the lid material L is to be pulled down on the upstream side of the seal station S, the lid material L is not freely pulled down from the pinch roll 34, and the downstream side of the seal station S is pulled down. This is because the lift of the dancer roll 35 allows the lid material L to be freely lowered.

Next, when the seal head 44 is lowered by the operation of the head lifting / lowering cylinder 43, first, the lid pressing member 57 seals the lid L while pushing out the filling liquid from below the lid L. The central part of the part to be bent is pressed and curved downward. Next, the heater 56 is pressed by the holder 21 via the lid member L and the container flange F, whereby the lid member L
Is sealed to the flange F. Before or after this, the cover material L is punched out by the cover material press 61 pressing the outside of the seal portion and the cutter 58 being lowered (FIG. 5C).

When the cover material L is punched, the seal head 44 is raised first. Then press down member
When the lifting member 62 is raised, the lifting member 66 is raised together with the depressing member 62, whereby the remaining portion of the lid material L punched out of the lid is forcibly peeled off from the lid, and the lid is placed on the container C. Only are left.

When the remaining portion of the lid L, which has been punched out of the lid, is pulled up by the lifting member 66, the lid L moves to the left by the amount indicated by the arrow in FIG. 4b (FIG. 5d).
Arrow). Then, the edge of the lid punching hole of the lid L may be hooked on the punched lid or the container flange F (the dashed line in FIG. 5D). It is easy to come off.

Then, each of the container C and the lid material L is 1
Driven by the pitch, the sealed container C is carried out of the sealing station S, and the container C to be sealed in the next cycle is carried into the sealing station S together with the lid material L in the next cycle. Done.

The sealing device in the case where the container is fully filled has been described above. The sealing device in the case where the container is not completely filled will be described below with reference to FIG. In the second embodiment described below, parts corresponding to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the second embodiment, only the inner and outer seal station guide rolls 36 and 37 are supported by the support arm 65, and the pressing member 62, the bracket 63 and the cylinder 64 are omitted. Then, on the lower surface of the lid holder 61,
The lifting member 71 is mounted via the bracket 72 so as to be located only on the downstream side of the holder 21 stopped at the sealing station S. Lid presser 61 lower surface and lifting member
There is a cover material passage interval between 71, and the cover material L guided to the sealing station S is passed through this space.

As in the case of the first embodiment, a pulling member may be provided on the upstream side of the holder 21.

[0025]

[Effect of the invention] According to the invention, the remaining portion of the lid is formed.
The lifting member engages the lid from below and pulls up.
In this case, an upward force is applied to the lid material orthogonally to the direction in which the lid material is transported . Therefore, even if the remaining lid material forming the lid is hooked on the lid or the rim of the container, the hooking is performed. Can be smoothly transferred, so that the remaining lid material forming the lid can be smoothly transferred.

[Brief description of the drawings]

FIG. 1 is a front view of an apparatus according to the present invention.

FIG. 2 is an enlarged vertical sectional view showing a main part of the device.

FIG. 3 is a perspective view of a pressing means of the device.

FIG. 4 is an explanatory view of a sealing operation by the device.

FIG. 5 is an explanatory diagram of a sealing operation following the operation shown in FIG. 4;

FIG. 6 is a sectional view corresponding to FIG. 2, showing another embodiment.

[Explanation of symbols]

 11 Turntable 12 Transfer device 13 Sealing and trimming device 66 Pulling member 71 Pulling member C Container L Lid F Container flange

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-242706 (JP, A) JP-B-62-57496 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65B 7/28 B65B 51/10

Claims (1)

(57) [Scope of request for utility model registration] 1. An intermittently driven container transporting device 11 for transporting containers C so as to be sequentially stopped at a sealing station S; an intermittently driven lid material transporting device 12 for transporting a band-shaped lid F via the sealing station S; When the transfer device 12 stops the transfer of the cover material, the lifting and lowering head 44 seals the cover material F at the container rim at the sealing station S and cuts the cover material F along the seal portion to form a cover.
And sealing trimming device 13 having, it in the lid transport path upstream and downstream of the lifting head 44
Respectively, and is engaged with the lid member F from above to seal the seal member.
Between the container C stopped at the position S and the lifting head 44
And a pair of guide rolls 36, 37 for guiding the lid F to the container, and the guide rolls 36, 37 between the two guide rolls 36, 37 in the container sealing device.
Up and down so that it can be lowered below the level connecting the lower ends of the
Placed at the center and guided between the guide rolls 36 and 37
Pulling members 66 and 71 which are engaged with the material F from below, and before the sealing / trimming device 13 cuts the lid material F,
The raising members 66 and 71 are lowered, and the seal trimming device 13
After cutting the cover material F, the transfer device 12 starts the transfer of the cover material.
Before and after lifting, raising and lowering means for raising the pulling members 66 and 71 .