JPH07144240A - Sound insulating device of can seamer - Google Patents

Abstract

PURPOSE:To improve the working environment of a filling room and take the protective counter measure for hard of hearing for a worker by allowing a sound insulating device installed on a can seamer in a canning line to exert continuously a sufficient sound insulating effect even under a highly humid environment and to attain the excellent washing property without problems on health. CONSTITUTION:As for a sound insulating device for a can seamer 2 which is arranged on a way of a canning line and to seam together a can lid on can body after canned with its contents, tunnel like inlet and outlet openings 5, 6 of the can are installed on the sides respectively, and a cover member 1 in which an inlet 19 of the can lid is opened on its ceiling part and which is assembled in a box like is arranged so that the entire can seamer body 2 is enclosed from its circumference. Further, the cover member 1 is formed of a panel with a high sound insulation ability which covers a damping material and a sound absorbing thermal insulation material from both front and back sides with stainless steel plates.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus attached to a can seamer for winding a lid on a can body after filling the contents, which is disposed in the middle of a can liner, and in particular, to a high speed by the can seamer. The present invention relates to a soundproof device for preventing noise generated during winding tightening.

[0002]

2. Description of the Related Art Generally, it is widely practiced to attach a cover member to a machine operating in each part of a manufacturing line for processing while transporting, in consideration of worker safety. Therefore, even in a high-speed canning line that fills and seals contents such as beer, coffee, and juice in cans, this covers the can seamer for tightening the lid on the can body after filling the contents. A cover member for is provided by one of the applicants.

The cover member for this can seamer is intended mainly for safety measures to avoid the danger of an operator directly touching the machine, and is manufactured by sheet metal working of a stainless steel plate. The can entrance / exit is directly opened on the side wall of the cover member corresponding to the path, and the can lid chute is located on the side wall of the cover member on the side where the operator is located. The part is open.

[0004]

By the way, conventionally, at the time of high-speed tightening by a can seamer arranged in a filling chamber in a high-speed canning line, a drive system sound for driving the can seamer (lower drive gear noise, Filler drive sound, etc., sound generated when double-tightening cans (upper drum rotation sound, chuck spindle rotation sound, separator lid cutting sound that separates stacked can lids, separator spindle rotation sound) , Motor rotation noise, etc.),
There is a problem that a high level of noise is generated by sounds from various cams (seaming cam, knockout cam, lifter cam, etc.), which deteriorates the working environment of the filling chamber and makes the worker deaf.

However, in the cover member attached to the can seamer mainly for the safety measures for the above-mentioned worker, noise leaks from the opening serving as the entrance and exit of the can, and further the opening for the can lid chute is provided to the worker. Since the large opening is located on the side where the is located, noise such as the lid cutting noise due to the separator roll is concentrated and leaks to the side of the operator, and moreover,
Since the cover member is formed of a stainless steel sheet processed by sheet metal processing, the sound insulation effect by itself is not sufficient, and the sound insulation effect against noise can hardly be expected.

Therefore, in order to enhance the sound insulation effect of such a cover member, for example, a porous fibrous sound absorbing material having open cells such as glass wool or rock wool, a sponge-like sound absorbing material, and a binder containing inorganic particles. It is conceivable to apply generally widely used soundproofing measures such as sticking a sound absorbing member such as a ceramic sound absorbing material that is porously bonded to the inner surface of the cover member to the can seamer. By the way.

[0007] However, in the case of a can seamer, the steam flow before the winding is performed so that the contents (beer, coffee, juice, etc.) generated when the double winding is performed and the inside of the sealed can is depressurized. Operation in a high-humidity environment, such as when performing cleaning, and rinsing the machine with hot water, water, etc. at the time of cleaning, the contents scattered in the holes of the porous sound absorbing material provided on the inner surface of the cover member Since the sound absorbing function will be deteriorated immediately by the addition of hot water, water, etc., and there is also a sanitary problem because the sound absorbing surface cannot be cleaned. In any case, it has been generally applied conventionally. The soundproofing measures using such a porous sound absorbing material cannot be directly applied.

The present invention is intended to solve the problem of soundproofing against noise caused by the can seamer as described above, and more specifically, it continues to provide sufficient soundproofing effect even in a high humidity environment. It is an object of the present invention to provide a soundproofing device for a can seamer that can be exerted and that has good cleaning properties and has no sanitary problem.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to achieve the object, the present invention is for winding a can lid around a can body after being filled with contents and arranged in the middle of a can line. As a soundproof device for the can seamer, a tunnel-shaped can entrance and exit is provided on each side, and a can cover is assembled in a box shape by opening the entrance of the can lid on the ceiling so that the entire can seamer is wrapped from the surroundings. In addition to being arranged, the cover member is formed of a panel with high sound insulation properties, which is covered by sandwiching a vibration damping material and a sound absorbing and heat insulating material from both front and back sides with stainless steel plates.

[0010]

[Operation] With the above configuration, the noise that leaks to the outside through the can opening / closing port of the cover member becomes difficult to leak to the outside due to the tunnel shape of the can opening / closing port. Regarding the noise that leaks to the outside through the entrance of the can lid is open to the ceiling and the noise escapes upward, so that it will be reduced to a level where it is not a problem at the place where the worker is located, and the cover Regarding the noise transmitted to the outside through the wall of the member,
The sound damping material and the sound absorbing and heat insulating material provide sufficient sound insulation.

Further, since the vibration damping material and the sound absorbing heat insulating material provided on the wall portion of the cover member are covered on both sides by the stainless steel plates, the scattered contents, the moisture due to the steam flow, or the cleaning of the can seamer. It is completely isolated from moisture, etc. and is not affected by them at all.

Further, since the front and back sides of the wall portion of the cover member are covered with the stainless steel plates, the cover member itself can be sufficiently washed even if the vibration damping material and the sound absorbing and heat insulating material are provided. Is possible.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an overall appearance of a soundproof box according to an embodiment of a soundproof device for a can seamer of the present invention. The soundproof box 1 is arranged so as to wrap the entire can seamer 2 from the surroundings. The lower box 3 located below and the upper box 4 located above it,
The upper box 4 comprises a tunnel-shaped box 5 located on the can entrance side and a can-shaped box 6 located on the can exit side of the upper box 4.

Although the lower box 3 is not shown,
The panel is bolted from the side to a frame assembled on the floor so as to surround the lower portion of the can seamer 2, and is fixed to the floor by anchor bolts or the like and is located above it. It supports the weight of the upper box 4.

Although not shown, the upper box 4 is bolted to the ceiling panel at the upper ends of the four side panels, and the lower ends of the side panels are bolted to the upper ends of the lower boxes 3, respectively. Each of the side panels of the upper box 4 has doors 11, 12, 13 (and an outlet side of a can (not shown)) in order to secure a working space during mold changing and winding adjustment. Doors are provided, and packing (not shown) is attached to each door to enhance the hermeticity with the side panel.

A mounting portion 16 for the tunnel-shaped box 5 is formed on the side panel 4a on the inlet side of the can of the upper box 4, and although not shown, a tunnel-shaped box 6 is provided on the side panel on the outlet side of the can. And the tunnel-shaped box 5 is connected to the side of the upper box 4 via the mounting portion 16 of the side panel 4a on the inlet side of the can, and the mounting portion of the side panel on the outlet side of the can. The tunnel-shaped box 6 is connected via.

On the ceiling panel 4c of the upper box 4, a door 15 serving as an exhaust hole is automatically driven by an air cylinder or the like so that the soundproof box 1 is not filled with steam when the can seamer 2 is washed. As shown in FIGS. 4 and 5, the can lid 9 is guided to the can seamer 2 on the ceiling panel 4c on the side of the door 15 of the ceiling panel, which is provided so as to be opened and closed. The can lid chute 18 for fixing is fixed with the bolt 8 via the mounting member 41 on the can lid chute 18 side and the mounting member 42 on the ceiling panel 4c side. In addition, the opening which becomes the inlet 19 of the can lid 9 of the ceiling panel 4c to which the can lid chute 18 is attached is
It is only slightly larger than the diameter of the can lid 9.

FIG. 2 shows a tunnel-shaped box 6 on the can outlet side.
For the tunnel box 6 itself,
The ceiling 6a is openable and closable in consideration of workability such as when changing the mold of the can guide 21 and performing maintenance such as cleaning, or when a can being conveyed in the tunnel is blocked. Regarding the inside of 6, the sound insulating sheet 2 is provided in the space on both sides of the tunnel portion excluding the central portion where the can guide 21, the conveyor 22 for conveying the cans, the conveyor frame 23, the water receiving toy 24, etc. are located.
5. ． ． Is hung from the rails 26, 26 in the shape of a goodwill.

This sound insulation sheet 25. ． ． Plays the role of a soundproof wall inside the tunnel. It consists of a strip of highly soundproof and water-resistant material, and its upper part is movably suspended on rails 26, 26 to attach the number of sheets. And the mounting position can be freely set, and the noise generated by the can seamer 2 reaches the sound insulating sheet 25. ． ． Is collided with and attenuated.

As the material of the sound insulation sheet 25, vinyl is used in the present embodiment, but from the viewpoint of sound insulation, it is better to use a material such as lead having a specific gravity as large as possible, while food hygiene. From the above viewpoint, since heavy metals are not preferable, it is desirable to appropriately select and use a material that satisfies both requirements of sound insulation and food hygiene.

Although not shown, in the tunnel box 5 at the can entrance, the can feed chain attachment 28 is inserted in the tunnel of the box 5, and the can is installed in the tunnel of the box 5. In consideration of the malfunction of the detection sensor due to the sound insulating sheet, the sound insulating sheet was not installed in this embodiment, but the sound insulating sheet is installed in the same manner as the tunnel-shaped box 6 at the can outlet shown in FIG. You may.

When the length of the upper box 4 from the side panel of each of the tunnel-shaped boxes 5 and 6 at the entrance / exit of the can becomes large, a stand for supporting the box may be installed if necessary. In this embodiment, the tunnel-shaped box 5 at the can inlet has a length of 615 mm from the side panel of the upper box 4 and no stand is installed. Since it is 1000 mm long from the side panel of the upper box, a stand (not shown) is installed near the tip of the upper box to support it.

FIG. 3 shows a sectional laminated structure of a panel which is a member for constituting the soundproof box 1.
The lower box 3, the upper box 4, the tunnel-shaped box at the can entrance, the tunnel-shaped box 6 at the can exit, etc. are all formed by bolts using this panel and installed in the upper box 4. The respective doors 11, 12, 13, 15 (and doors on the can outlet side not shown) that are provided are all formed of the same panel.

This panel has a damping material 33 and a sound absorbing and heat insulating material 34 sandwiched between stainless steel plates 31 and 32 on both inner and outer sides in order to enhance sound insulation. Between the inner stainless steel plate 31 which was buffed and surface-finished and the outer stainless steel plate 32 which was pickled after cold rolling, rubber and asphalt-based sheets 33 and 33 each having a thickness of 3 mm were used as damping materials.
Glass wool 34 having a thickness of 25 mm is arranged as a sound absorbing and heat insulating material, and the total thickness is 34 mm, and although not shown, stainless steel plates 31, 32 are provided to prevent steam, water, etc. from entering the inside of the panel. The mating surfaces of are welded all around.

Soundproof box 1 having the above structure
According to the above, the noise of the drive system of the can seamer 2 (lower drive gear sound, filler drive sound, etc.) is blocked by the lower box 3 which is mainly a sound-insulating panel, and is generated when the can is double-wound. Noise (rotation noise of the upper drum, rotation noise of the chuck spindle, cover cutting noise of the cover separator, rotation noise of the motor, etc.) is blocked by the upper box 4, which is mainly a sound insulating panel.

As for the noise leaking to the outside through the can opening / closing port of the soundproof box 1, it leaks to the outside because the can opening / closing port is tunneled by the tunnel-shaped boxes 5 and 6 made of sound-insulating panels. Noise that leaks to the outside through the entrance of the can lid becomes difficult,
Since the opening 19 serving as the inlet of the can lid causes only a small gap between the mounting member 41 of the can lid chute 18 and the can lid 9, the leakage to the outside is small, and the can lid is also small. Since the entrance of is open to the ceiling portion 4c of the upper box 4, the noise escapes upward, and almost no noise is felt at the place where the worker is located.

Further, in the panel constituting the soundproof box 1, the damping material 33 and the sound absorbing heat insulating material 34 are covered so that their mating surfaces are hermetically sealed by the stainless steel plates 31 and 32 welded all around. Therefore, the sound absorbing heat insulating material 34 is completely isolated from the scattered contents, the moisture caused by the steam flow, the moisture caused by the cleaning of the can seamer 2, and the like, and the sound absorbing function of the sound absorbing heat insulating material 34 is not deteriorated by the influences thereof. The soundproofing effect of 34 is fully exerted.

Furthermore, since the inner stainless steel plate 31 of the soundproof box 1 is buffed with # 400 and its surface state is a mirror surface, the cleaning property is good and the growth of bacteria can be hindered. It can also be used in equipment with strict bacterial control, and the upper box 4
Since large doors 11, 12, 13, 15 (and doors on the can outlet side not shown) are provided on each side of the, the workability at the time of mold changing and winding adjustment is also good, and the upper box Since the whole machine of the can seamer 2 is covered with the lower box 4 and the lower box 3, the function as a safety cover is also high, and since the panels of each part constituting the soundproof box 1 are assembled by bolts, the soundproof box 1 The whole can be disassembled, and there is no hindrance to the work during overhaul of the can seamer 2.

When the soundproof box 1 is installed, the measurement position (1 m from the machine side) as shown in FIG.
The result of actual noise measurement at a distance from P1 to P4, which is 1.2 m above the floor, is the same measurement position as the conventional one with a cover member simply for the purpose of safety measures. As compared with the result of measuring the noise, as shown in FIG. 5, 88 to 94 before the soundproof box 1 is installed (that is, the conventional cover member is installed).
The noise level, which was dB (A), is reduced to 80 to 84 dB (A) after the soundproof box 1 is installed. From this result as well, the soundproof box 1 is considered to be the regulation value of the noise level of 85 dB (A). It can be understood that the following conditions can be cleared and it is effective in soundproofing.

The soundproofing device for a can seamer according to the present invention has been described above based on the specific structure of the soundproof box 1 which is one embodiment thereof. However, the present invention is limited to the specific structure as described above. It is needless to say that the present invention is not limited to the above, and various embodiments can be adopted within the scope of the claims.

[0032]

According to the soundproofing device for a can seamer of the present invention as described above, a sufficient soundproofing effect can be continuously exhibited even in a high humidity environment, and moreover, it is easy to clean and hygienic. Since the above problem does not occur, the work environment of the filling chamber can be improved and the worker can be protected against hearing loss by installing this in the filling line for canned food.

[Brief description of drawings]

FIG. 1 is a perspective view showing a soundproof box that is an embodiment of the present invention.

FIG. 2 is a perspective view showing the inside of the tunnel-shaped box portion of the can outlet of the embodiment shown in FIG.

FIG. 3 is a partial cross-sectional view showing a laminated structure of a panel for forming the soundproof box of the embodiment shown in FIG.

FIG. 4 is a partial cross-sectional view showing a part of the can lid chute of the embodiment shown in FIG. 1 and an inlet of the can lid of the ceiling portion of the soundproof box.

5 is a top view showing the entrance of the can lid of the ceiling part of the soundproof box as seen from the cross section taken along the line AA in FIG.

FIG. 6 is an explanatory diagram showing noise measurement positions for the embodiment shown in FIG.

FIG. 7 is an explanatory diagram showing a comparison of the noise levels of the example and the conventional example at the measurement position shown in FIG.

[Explanation of symbols]

 1 Cover Member 2 Can Seamer 5 Tunnel Can Inlet 6 Tunnel Can Outlet 19 Can Lid Inlet 31 Stainless Steel Plate (Inside) 32 Stainless Steel Plate (Outside) 33 Damping Material 34 Sound Absorbing Insulation Material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriaki Kobayashi 2-12-28 Izumigaoka, Kanazawa-shi, Ishikawa Lapole Izumigaoka 101

Claims (1)

[Claims] 1. A tunnel-shaped can inlet / outlet is provided on a side of a can seamer for winding a can lid around a can body after filling the contents with a can body after being filled with the can, and a tunnel-shaped can inlet / outlet is provided at each of the ceiling parts. A cover member assembled in a box shape by opening the entrance of the can lid is arranged so as to wrap the whole can seamer from the surroundings, and the cover member includes a vibration damping material and a sound absorbing heat insulating material from both front and back sides of stainless steel. A sound insulation device for a can seamer, which is characterized by being formed by a panel with high sound insulation properties that is covered so as to be sandwiched between steel plates.