JP3103294U - Food container sealing device - Google Patents

Abstract

An object of the present invention is to provide a food container sealing device capable of reliably preventing outside air from entering a container in a degassing step.
An elevating body (24) capable of elevating and lowering is disposed in a deaeration step (c), and a central projection (25) is protruded at the center of the lower surface of the elevating body (24). Bolts 26a, which are peripheral projections 26, are protruded at predetermined intervals in the circumferential direction. The lifting / lowering body 24 is lowered to press the peripheral edge 3A of the lid 3 with each bolt 26a. By pressing the central portion of the container 3, the air collected in the upper portion of the container main body 2 is pushed out from the gap between the peripheral edge 2A of the container main body 2 and the peripheral edge 3A of the lid 3 between the bolts 26a.
[Selection] Figure 2

Description

  The present invention relates to a food container sealing device for sealing a container filled with food, such as pickles or pickles.

  As shown in FIGS. 7A and 7B, there are a circular container 1A and a rectangular container 1B for storing food W such as pickles and pickles, which are made of a synthetic resin container body 2 and a synthetic resin. And a lid 3.

  FIG. 8 shows an example of a conventional food container sealing device for filling the containers 1A and 1B with food W. In the food filling step (a), the food W is filled into the container main body 2 via the nozzle 4 and the food W in the container main body 2 is pressed to push out bubbles in the food W, and alcohol is added. A shower is sprayed to eliminate bubbles adhering to the upper surface of the food W, and in the lid covering step (b), the lid 3 is placed on the upper opening of the container body 2, and in the degassing step (c), the worker M By pressing the central portion of the lid 3 with the palm of the hand to elastically deform the lid, the peripheral portion 2A of the container body 2 and the lid 3 are formed so that the air accumulated in the upper part of the container body 2 is formed into a substantially U-shaped cross section. 8A (see FIG. 8 (c-1)), and in the sealing step (d), the peripheral portion 3A of the lid 3 is sealed by the annular stamp 7 heated by the heater 6 in the container. Pressing against the peripheral edge 2A of the main body 2 to weld the peripheral edges 2A and 3A together Figure 8 (d-1) refer to Fig.

  In the above-described conventional configuration, when the worker M presses the central portion of the lid 3 with the palm of the hand to elastically deform the lid 3 in the deaeration step (c), the peripheral portion 3A of the lid 3 rises and the container main body is lifted. Since a relatively large gap 5 is formed between the peripheral portion 2A and the peripheral portion 2A (see FIG. 8 (c-1)), even if the lid 3 is released, the raised peripheral portion 3A is immediately returned to the original position. Without returning, the outside air may enter the container body 2 through the gap 5 and accumulate air O in the upper part of the container body 2 (see FIG. 8 (d-1)). It is oxidized and lasts longer.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional drawbacks, and has as its object to provide a food container sealing device that reliably prevents outside air from entering a container in a degassing step.

  The configuration for achieving the above object will be described with reference to the drawings corresponding to the embodiments. As shown in FIGS. 1 to 5, the invention according to claim 1 is made of synthetic resin conveyed by a conveyor 11. A food filling step (a) for filling the container body 2 with the food W, a lid covering step (b) of covering the upper opening of the container body 2 with the synthetic resin lid 3, and pressing the lid 3 for the container A food container sealing apparatus having a deaeration step (c) for pushing out the air accumulated in the upper portion of the main body 2 and a sealing step (d) for welding the peripheral edge 3A of the lid 3 to the peripheral edge 2A of the container main body 2 In the deaeration step (c), an elevating body 24 that can move up and down is disposed, a central projection 25 is protruded at the center of the lower surface of the elevating body 24, and a plurality of Peripheral protrusions 26 are provided at predetermined intervals in the circumferential direction. By lowering the descending body 24 and pressing the peripheral edge 3A of the lid 3 by each peripheral projection 26, and pressing the center of the lid 3 by the central projection 25, the air accumulated in the upper part in the container body 2 is removed. A configuration is adopted in which the outer peripheral portion 2A of the container body 2 between the peripheral protrusions 26 and the peripheral portion 3A of the lid 3 are pushed out from the gap 5 between the peripheral protrusions 26 to the outside.

  According to a second aspect of the present invention, in the first aspect of the present invention, a pressing plate 25c is provided in which the central projection 25 is fitted in a guide cylinder 25a projecting from the lower surface of the elevating body 24 so as to be adjustable in height. And a configuration in which an elastic plate 25d is attached to the lower surface of the pressing plate 25c.

  According to a third aspect of the present invention, in the device according to the first or second aspect, each of the peripheral protrusions 26 comprises a height-adjustable bolt 26 a screwed to a lower surface of the elevating body 24, This adopts a configuration in which the peripheral portion 3A of the lid 3 is pressed by the head of the bolt 26a.

  According to the invention of claim 4, in the invention of claim 1 or 2, as shown in FIG. 6, the container body 2 and the lid 3 are formed in a substantially rectangular shape in plan view, and the rectangular container is formed. Each of the peripheral projections 26 facing the peripheral corners 2a, 3a of the main body 2 and the lid 3 is formed of a substantially L-shaped block 26b in plan view, and the other peripheral projections 26 are formed of bolts 26a. A configuration is adopted in which the peripheral corner portion 3a of the lid 3 is pressed by the L-shaped block 26b, and the peripheral linear portion 3b of the lid 3 is pressed by the head of each bolt 26a.

  According to a fifth aspect of the present invention, in the first to fourth aspects, as shown in FIG. 2, a configuration is adopted in which a heater 32 is built in the elevating body 24.

  The invention according to claim 6 is the invention according to claim 5, wherein each of the peripheral protrusions 26 transmitted to the heater 32 incorporated in the elevating body 24 presses the peripheral edge 3A of the lid 3, A configuration is adopted in which the peripheral portion 3A is temporarily welded to the peripheral portion 2A of the container body 2.

  The invention according to claim 7 is the invention according to claim 5, wherein each of the substantially L-shaped blocks 26 b transmitted to the heater 32 incorporated in the elevating body 24 presses the peripheral edge 3 </ b> A of the lid 3. Then, a configuration is adopted in which the peripheral portion 3A is temporarily welded to the peripheral portion 2A of the container body 2.

  According to the invention of claim 1, in the deaeration step (c), the peripheral portion 3A of the lid 3 is pressed by the plurality of peripheral projecting members 26 projecting at predetermined intervals in the circumferential direction, and the central projecting member is pressed. By pressing the central portion of the lid 3 with the air, the air accumulated in the upper portion of the container main body 2 is slightly removed between the peripheral edge 2A of the container main body 2 between the peripheral protrusions 26 and the peripheral edge 3A of the lid 3. Since the peripheral portion 3A of the lid 3 does not rise as in the prior art, when the pressing of the central portion of the lid 3 is released, the peripheral portions 2A and 3A are connected to each other. The gap immediately closes and the gap is closed, so that outside air does not enter the container body 2 through the gap, the deaeration is reliably performed, the oxidation of the food W is prevented, and the shelf life can be improved. .

  According to the invention described in claim 2, the height of the pressing plate 25c with the elastic plate 25d of the central projection 25 is adjusted only in accordance with the height of the central portion of the lid 3, and the elastic plate is formed by the pressing plate 25c. By pressing the central part of the lid 3 with an appropriate pressure via the 25d, only the air accumulated in the upper part in the container body 2 can be efficiently pushed out.

  According to the invention of claim 3, the head of each bolt 26a is adjusted only by adjusting the height of the bolt 26a forming each peripheral projection 26 in accordance with the height of the peripheral portion 2A of the container body 2. Thereby, the peripheral portion 3A of the lid 3 can be pressed against the peripheral portion 2A of the container body 2 with an appropriate pressure.

  According to the present invention, when the central portion of the rectangular lid 3 placed on the rectangular container main body 2 is pressed, the pressing force is concentrated on the peripheral corner 3a of the rectangular lid 3. Therefore, the peripheral corner portion 3a may be lifted, but the peripheral corner portion 3a is held over a wide area by a substantially L-shaped block 26b in plan view so as not to float, so that it is possible to surely prevent the invasion of the outside air. it can.

  According to the invention of claim 5, even in the case of using a container having a shape in which the peripheral portion 3A of the lid 3 is easily lifted in the deaeration step (c), the peripheral projection 26 heated by the heater 32 is used. By temporarily welding the peripheral edge 3A of the lid 3 to the peripheral edge 2A of the container body 2, it is possible to prevent the peripheral edge 3A of the lid 3 from unexpectedly floating during degassing.

  According to the invention of claim 6, for example, when the circular container 1A in plan view is used, the peripheral portion 3A of the lid 3 is temporarily attached to the peripheral portion 2A of the container body 2 by the peripheral protrusion 26 heated by the heater 32. By welding, the peripheral portion 3A of the lid 3 can be prevented from unexpectedly rising during degassing.

  According to the invention of claim 7, for example, when the rectangular container 1B in plan view is used, the peripheral corner portion 3a of the lid 3 is divided into the peripheral edge of the container body 2 by each of the substantially L-shaped blocks 26b heated by the heater 32. By temporarily welding to the corner portion 2a, the peripheral corner portion 3a of the lid 3 can be prevented from unexpectedly rising during degassing.

  FIG. 1 shows a food container sealing apparatus according to an embodiment of the present invention, which covers a food filling step (a), a lid covering step (b), a degassing step (c), and a sealing step (d). A number of container support plates 12 are connected endlessly to a conveyor 11 arranged on the machine frame 10, and a pressing rod 13a is lowered between the food filling step (a) and the lid covering step (b) to lower the inside of the container body 2. And a shower nozzle 14 for blowing an alcohol shower to eliminate bubbles attached to the upper surface of the food W. A degassing unit 16 and a sealing unit 17 are provided in the control unit 15 facing the airing step (c) and the sealing step (d). Numerals 18 and 19 are vertically movable container receivers disposed below the bubble extrusion unit 13 and the deaeration unit 16. Since the configuration other than the above is substantially the same as the configuration shown in FIGS. 7 and 8, the same portions are denoted by the same reference numerals and description thereof will be omitted.

  As shown in FIGS. 2 and 4, the container support plate 12 corresponds to the circular container 1A, and includes a rectangular plate main body 12a and a through hole 21 provided in the center of the plate main body 12a. And a circular support cylinder 12b integrally protruding from a peripheral edge of the support cylinder 12b. When the container main body 2 is inserted into the support cylinder 12b, the peripheral edge 2A of the container main body 2 engages with the top of the support cylinder 12b. Is done.

  As shown in FIGS. 2 to 4, the deaeration unit 16 is connected to an elevating body 24 via a connecting mechanism 23 to an elevating pressing rod 22 hung down from a control unit 15, and a lower surface of the elevating body 24. A central projection 25 is protruded at the center, and a plurality of peripheral projections 26 are protruded at predetermined circumferential intervals on the outer periphery of the lower surface of the elevating body 24.

  As shown in FIGS. 2 and 3, the connecting mechanism 23 includes a substantially U-shaped frame 23 a connected to a lower end of the pressing rod 22 and upper ends of four guide rods 23 b protruding from an upper surface of the elevating body 24. And a guide plate 23d urged upward by a spring 23c so as to be movable up and down within a certain range, and the guide plate 23d is removably fitted into a concave groove 23e formed in a vertical portion of the frame 23a. The spring 23c absorbs an impact applied to the elevating body 24. Reference numeral 23f denotes a retaining bar fixed to the frame body 23a and holding the end surface of the guide plate 23d.

  As shown in FIGS. 2 and 4, the central projection 25 has a pressing plate 25c which is fitted into a circular guide cylinder 25a protruding from the lower surface of the elevating body 24 and whose height can be adjusted by bolts and nuts 25b. An elastic plate 25d is attached to the lower surface of the pressing plate 25c, and only by adjusting the height of the pressing plate 25c with the elastic plate 25d in accordance with the height of the center of the lid 3, the pressing plate 25c By pressing the central portion of the lid 3 with an appropriate pressure via the elastic plate 25d, only the air accumulated in the upper part in the container body 2 can be efficiently pushed out (see FIG. 5C).

  Each of the peripheral protrusions 26 is composed of a height-adjustable bolt 26a screwed to the lower surface of the elevating body 24, and adjusts the height of each bolt 26a in accordance with the height of the peripheral portion 2A of the container body 2. With only this, the peripheral portion 3A of the lid 3 can be pressed against the peripheral portion 2A of the container body 2 with an appropriate pressure by the head of each bolt 26a (see FIG. 5 (c-1)).

  As shown in FIGS. 2 and 4, the sealing unit 17 is connected to an elevating body 30 via a connection mechanism 29 to a vertically movable pressing rod 28 that is hung from the control unit 15, and is attached to the lower surface of the elevating body 30. A heater 6 with an annular stamp 7 is detachably mounted.

  As shown in FIG. 2, the connection mechanism 29 is capable of moving up and down within a certain range at the upper end of a frame 29 a connected to the lower end of the pressing rod 28 and at the upper end of four guide rods 29 b protruding from the upper surface of the elevating body 30. And a guide plate 29d which is engaged and urged upward by a spring 29c. The guide plate 29d is connected to the frame body 29a. The spring 29c absorbs an impact applied to the elevating body 30.

  The sealing procedure will be described with reference to FIG. 5. In the food filling step (a), the food W is filled into the container main body 2 via the nozzle 4, and the food in the container main body 2 is pressed by the pressing rod 13 a of the bubble pushing section 13. W is pressed to push out bubbles in the food W, and at the same time, an alcohol shower is sprayed by the shower nozzle 14 to eliminate foam particles attached to the upper surface of the food W (see FIG. 1), and in the lid covering step (b), The lid 3 is placed over the opening on the upper surface of the container body 2, and in the deaeration step (c), the elevating body 24 is lowered, and the peripheral portion 3 </ b> A of the lid 3 is fixed with the head of the bolt 26 a forming each peripheral protrusion 26. While being pressed, the central portion of the lid 3 is elastically deformed by pressing the central portion of the lid 3 via the elastic plate 25d by the pressing plate 25c of the central projection 25 (see (c-1) in FIG. 5). In the upper part of the supported container body 2, Air is pushed out from the slightly open gap 5 between the peripheral edge 2A of the container body 2 and the peripheral edge 3A of the lid 3 between the bolts 26a [see FIG. In (d), the peripheral edge 3A of the lid 3 is pressed against the peripheral edge 2A of the container body 2 by the annular stamp 7 heated by the heater 6, and the peripheral edges 2A, 3A are welded to each other [FIG. 5 (d-1). )reference〕.

  According to the above configuration, in the deaeration step (c), the air accumulated in the upper part of the container main body 2 is slightly removed between the peripheral edge 2A of the container main body 2 and the peripheral edge 3A of the lid 3 between the bolts 26a. Since the peripheral portion 3A of the lid 3 does not rise as in the related art, when the pressing of the central portion of the lid 3 is released, the peripheral portions 2A and 3A are connected to each other. The gap 5 is immediately closed and closed, and the outside air does not enter the container body 2 through the gap 5, and is surely deaerated to prevent the food W from being oxidized and improve the shelf life. Can be.

  In the above-described embodiment, the case where the circular container 1A is targeted has been described as an example. However, the present invention is not limited to this. For example, the rectangular container 1B (see FIG. 7B) is targeted. In this case, as shown in FIG. 6, the support cylinder 12b of the container support plate 12 is formed in a rectangular shape in a plan view, and each of the peripheral protrusions facing the peripheral corner portions 2a, 3a of the rectangular container body 2 and the lid 3. 26 is a substantially L-shaped block 26b in a plan view, and each of the peripheral projections 26 facing the peripheral linear portions 2b, 3b of the rectangular container main body 2 and the lid 3 is a bolt 26a. What is necessary is just to form in a substantially square shape. The configuration and operation other than those described above are substantially the same as those shown in FIGS. 1 to 5, and thus description thereof is omitted.

  According to the above configuration, when the central portion of the rectangular lid 3 placed on the rectangular container body 2 is pressed by the central projection 25 in the deaeration step (c), the pressing force is reduced by the peripheral edge of the rectangular lid 3. There is a possibility that the peripheral corner portion 3a may be lifted up by being concentrated on the corner portion 3a. However, the peripheral corner portion 3a is pressed over a wide area by a substantially L-shaped block 26b in a plan view so as not to float up. Intrusion can be reliably prevented.

  As shown in FIG. 2, a heater 32 may be built in the elevating body 24 of the degassing section 16, whereby a container in which the peripheral portion 3 </ b> A of the lid 3 is easily lifted up in the degassing step (c). Is used, the peripheral edge 3A of the lid 3 is temporarily welded to the peripheral edge 2A of the container body 2 by the peripheral projections 26 (26a, 26b) heated by the heater 32, so that the The peripheral portion 3A of the lid 3 can be prevented from unexpectedly rising.

  In the above embodiment, the circular container 1A and the rectangular container 1B have been described as examples, but the present invention is not limited to this, and the present invention can be applied to containers of various shapes.

It is a front view showing the food container sealing device which is one embodiment of the present invention. It is a partially cutaway front view of the deaeration part and the sealing part. It is a side view of the same deaeration part. It is an exploded perspective view of the same principal part. (A)-(d) is the schematic which shows the process from food filling to sealing, (c-1) and (d-1) are the enlarged views of the principal part, (e) is AA sectional drawing. It is an exploded perspective view which shows the modification of the principal part. (A) And (b) is a perspective view which shows a circular container and a rectangular container. (A)-(d) is the schematic which shows the process from conventional food filling to sealing, (c-1) and (d-1) are the enlarged views of the principal part.

Explanation of reference numerals

1A Circular container 1B Rectangular container 2 Container main body 2A Peripheral edge 3 of lid container 3A Peripheral edge of lid 3a Peripheral corner 3b Peripheral linear portion 5 Gap 11 Conveyor 24 Elevator 25 Central projection 25a Guide cylinder 25c Press plate 25d Elastic plate 26 Peripheral protrusion 26a Bolt 26b Substantially L-shaped block 32 Heater W Food a Food filling step b Covering step c Degassing step d Sealing step

Claims (7)

  A food filling step of filling the food into the synthetic resin container main body conveyed by the conveyor, a lid covering step of covering a synthetic resin lid on an upper opening of the container main body, In a food container sealing device having a deaeration step of pushing out air accumulated at an upper portion and a sealing step of welding a peripheral portion of the lid to a peripheral portion of the container body, an elevating body capable of moving up and down in the deaeration step is arranged. A central projection is protruded at the center of the lower surface of the elevating body, and a plurality of peripheral projections are protruded at predetermined circumferential intervals on the outer periphery of the lower surface of the elevating body. Then, the peripheral edge of the lid is pressed by the peripheral projections, and the central portion of the lid is pressed by the central projection, so that the air accumulated in the upper portion of the container body is removed from the peripheral edge of the container between the peripheral projections. To the outside through the gap between the Food containers sealing device is formed by the way out to.   2. The central projection tool according to claim 1, further comprising a pressing plate fitted in a height-adjustable manner into a guide cylinder protruding from a lower surface of the lifting / lowering body, and an elastic plate attached to the lower surface of the pressing plate. 3. The food container sealing device as described in the above.   The said each peripheral projection tool consists of a height-adjustable bolt screwed on the lower surface of the lifting / lowering body, and the head of each bolt presses the peripheral part of the lid. Food container sealing device.   The container main body and the lid are formed in a substantially rectangular shape in a plan view, and each of the peripheral projections facing the peripheral corner portion of the rectangular container main body and the cover is formed of a substantially L-shaped block in a plan view. 3. Each of the peripheral projections is formed of a bolt, and each of the substantially L-shaped blocks presses the peripheral corner of the lid, and the head of each bolt presses the peripheral linear portion of the lid. A food container sealing device according to claim 1.   The food container sealing device according to any one of claims 1 to 4, wherein a heater is built in the elevating body.   6. The food according to claim 5, wherein each of the peripheral projections transferred to the heater incorporated in the elevating body presses the peripheral edge of the lid, and the peripheral edge is temporarily welded to the peripheral edge of the container body. Container sealing device. The said each substantially L-shaped block transmitted to the heater built in the said raising / lowering body presses the peripheral part of a cover, The said peripheral part was made to fuse temporarily to the peripheral part of the container main body. Food container sealing device.

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