JP6238918B2 - Foreign matter adhesion prevention method and apparatus - Google Patents

Description

  The present invention relates to a foreign matter adhesion prevention method and apparatus, and more specifically, for example, a belt conveyor or a work table in a food factory, a pharmaceutical factory, a precision equipment assembly factory, or a sushi transport conveyor in a rotary sushi restaurant. Attached to the food bat arrangement table etc. in buffet style (biking style) restaurants, workers and users' hair, eyelashes, eyebrows, dust and other foreign substances are transferred to food, medicine, The present invention relates to a foreign matter adhesion preventing method and apparatus for preventing adhesion to a precision component or a food in a food bat with a lid opened.

  For example, when a processed product such as food or medicine is transported by a belt conveyor in a food factory, chemical factory, or precision equipment manufacturing factory, in order to prevent the operator's hair from adhering to the processed product, Workers often wear caps. However, even in this case, even if it is possible to prevent the hair from falling and adhering, it is not possible to prevent the foreign eye such as eyelashes, eyebrows, or dust or other foreign matter adhering to the clothes from falling.

  As a means for preventing these foreign substances from adhering to the workpiece being conveyed, an air shower system in which air is blown toward the conveyor belt and the operator can be considered. As what proposes this system, there exists invention described in patent document 1 (patent 3892109 gazette), for example.

  The invention includes a main unit provided with a coarse dust filter and a heat exchanger from the windward side, a blower unit including a blower and a high-efficiency filter per unit, and a blower outlet of the main unit, and A duct unit for transporting cold air to the unit is arranged, and a blower dedicated duct that communicates from the main unit on both sides of each blower unit by providing a blower inside the main unit and an air passage that is separate from the cold air passage A structure that supplies clean air cooled only to the work line by the blower unit, blows out uncooled air discharged from the blower of the main unit so as to hit the worker, and eliminates dust generated by the worker It is an air conditioning system for food factories.

  However, since this system is complicated and large in size, not only is the installation cost high, but the installation location is considerably restricted, and the main unit is installed on the ceiling, etc. There is a problem that it is difficult to cope with the relocation. In addition, dust accumulated on the main unit may fall onto the work piece. In addition, in this system, air is blown directly onto the work piece, so that the work piece is not only dried unnecessarily, but also bacteria. There is also a risk of inducing adhesion.

  In addition, it is practically difficult to implement this method for a sushi conveyor at a sushi restaurant, a food bat arrangement table at a buffet-style restaurant, and the like.

Japanese Patent No. 3892109

  As described above, means for preventing hair, dust, and the like from adhering to the work piece when the work piece is conveyed by a belt conveyor in a food factory, a pharmaceutical factory, or processed on a work table. In the case of a system that has been proposed in the past, the configuration becomes complicated and large, so that not only the installation cost is high, but the installation location is considerably restricted, and the main unit is installed on the ceiling or the like. Therefore, there is a problem that it is difficult to cope with the transfer of the belt conveyor, there is a risk that dust accumulated on the main unit may fall on the work piece, and further, dry the work piece and induce adhesion of bacteria etc. There was a problem that there was a risk of.

  The present invention has been made to solve these problems in the prior art, and has a simple and compact configuration with no restrictions on the installation location. For food products, pharmaceutical factories, precision instrument manufacturing factories, etc. When carrying out manual processing while transporting, or when a customer approaches a sushi transport conveyor in a rotating sushi restaurant or a food bat in a buffet style restaurant, Foreign matter adhesion prevention method and apparatus that can prevent eyelashes, eyebrows and other body deposits and floating dust, etc. from falling on the article or food, and that there is no risk of adverse effects of air on the article or food It is an issue to provide.

  The invention according to claim 1 for solving the above-mentioned problems is that foreign matter adheres to articles placed on an article placement unit including a belt conveyor, work table, food table, or other table approached by an operator or user. A pair of air blowers each having a discharge port and an air intake, with one of the air blowers turned upside down with respect to the other air blower so as to sandwich the article mounting portion By doing so, a foreign matter adhesion prevention method is characterized in that a flow of air surrounding the article placement portion in the vertical direction is generated.

  Further, the invention according to claim 2 for solving the above-described problem is a pair of air blowers so as to sandwich an article placement unit including a belt conveyor, a workbench, a food placement table, and other tables approached by an operator or a user. Each of the blower devices has a discharge port and an intake port, and the discharge port of one of the blower devices is disposed so as to open above the article mounting portion. In addition, the air inlet is disposed so as to open below the article placing portion, and the discharge port of the other air blower is disposed so as to open below the article placing portion. The air intake port is disposed so as to open to the upper side of the article placement unit, and the air discharged from the discharge port of the one blower device passes through the article placement unit and is sucked into the other blower device. Sucked into the mouth and discharged from the outlet of the other blower The is a foreign substance adhesion preventing device being characterized in that as the air is sucked into the inlet of said one blower passes below the article placing section.

  In one embodiment, an air filter is disposed in the blower.

  In one embodiment, the discharge port and the intake port are slits extending in the length direction of the article placement unit. In addition, a plurality of discharge ports and intake ports may be provided. In one embodiment, the air discharged from the discharge port of the one blower is directed obliquely upward, and in another embodiment, the air discharged from the discharge port of the one blower is horizontal. Directed in the direction.

  The present invention is as described above, and the method and apparatus according to the present invention has a simple and compact configuration and is not limited in installation location, and is used in a conveyance line for goods in food factories, pharmaceutical factories, etc., or in a sushi restaurant. An air barrier that circulates in a cylindrical shape around food bats in sushi conveyors and buffet-style restaurants is created, so if you do manual work while conveying goods, or buffet-style food and drink This air barrier prevents workers and users' hair, eyelashes, eyebrows and other body deposits and airborne dust from falling on items and ingredients when a user approaches a food bat at a store. In addition, since the air barrier is generated in a direction that does not touch the article or food, the adverse effects of air may not affect the article or food. There is an effect that.

  In addition, when this device is installed on a belt conveyor, it does not bother even when the belt conveyor passes through a narrow tunnel or the like, and no problem occurs when the belt conveyor is moved. effective.

It is a perspective view of the belt conveyor provided with the foreign material adhesion prevention apparatus which concerns on this invention. It is a longitudinal cross-sectional view which shows the principal part of the belt conveyor provided with the foreign material adhesion prevention apparatus which concerns on this invention. It is a longitudinal cross-sectional view which shows the principal part of the other structural example of the belt conveyor provided with the foreign material adhesion prevention apparatus which concerns on this invention.

  A mode for carrying out the present invention will be described with reference to the accompanying drawings. The foreign matter adhesion prevention method and apparatus according to the present invention include a belt conveyor and a work table in a food factory, a pharmaceutical factory, a precision equipment manufacturing factory, etc., or a sushi transport conveyor in a rotating sushi restaurant and a food bat arrangement table in a buffet style restaurant And so on.

  The foreign matter adhesion preventing method according to the present invention is to prevent foreign matter from adhering to an article placed on an article placement unit including a belt conveyor, a work table, an ingredient placement table, and other tables approached by an operator or a user. In the method, the air blower having a discharge port and an air intake port is paired, and the one air blower is turned upside down with respect to the other air blower so as to sandwich the article mounting portion. It is characterized in that a flow of air surrounding the article placement portion in the vertical direction is generated.

  The foreign matter adhesion preventing apparatus according to the present invention is for carrying out the above method, and the illustrated example is that when the apparatus is installed on a belt conveyor. FIG. 1 is a perspective view of a configuration example of a belt conveyor provided with a foreign matter adhesion preventing device according to the present invention, which is arranged on a leg frame 1 and on both upper sides of the leg frame 1 in the same manner as a general belt conveyor. Side plates 2 and 3, the drive shaft 4 and the driven shaft 5 that are passed between the end portions of the side plates 2 and 3, the drive unit 6 that incorporates a motor that rotationally drives the drive shaft 4, and the drive shaft 4 and the driven shaft 5. And a conveyor belt 7 wound around the belt, and performs the same transport operation as a general belt conveyor. The foreign matter adhesion preventing apparatus according to the present invention is installed in advance on the side plates 2 and 3 of the existing belt conveyor having such a configuration, or is installed later.

  This apparatus is configured by arranging the air blowers 11 and 12 in pairs so as to sandwich the conveyor belt 7 which is an article placement section. Each of the blower devices 11 and 12 is provided with discharge ports 15 and 16 on the upper surface or upper side portion of the sealed box-shaped cases 13 and 14, and provided with intake ports 17 and 18 on the lower surface or lower side surface thereof. The air sucked from the intake ports 17 and 18 can be discharged from the discharge ports 15 and 16 by the action of the built-in or external fans 19 and 20. The discharge ports 15 and 16 and the intake ports 17 and 18 are opened obliquely upward (see FIGS. 1 and 2) or opened in the horizontal direction (see FIG. 3).

  In the illustrated example, the fan 19 is disposed near the intake ports 17 and 18, but may be disposed near the discharge ports 15 and 16. The discharge ports 15 and 16 and the intake ports 17 and 18 have, for example, slit-like openings extending in the length direction, and air is discharged in a band shape. Further, a plurality (two in the illustrated example) of the discharge ports 15 and 16 and the intake ports 17 and 18 may be provided in parallel as illustrated.

  Air filters 21, 22 are provided in the cases 13, 14, and the air sucked from the intake ports 17, 18 is filtered by the air filters 21, 22 and then discharged from the discharge ports 15, 16. Is done. As the air filters 21 and 22, HEPA, high-performance filters, and the like are properly used according to the use of the apparatus. It is also effective to use a filter having a deodorizing / deodorizing function or a filter having a bactericidal action.

  The pair of air blowers 11 and 12 constituting the present apparatus has an air outlet 15 that opens on the upper side of the conveyor belt 7 and an air inlet 17 that opens on the lower side of the conveyor belt 7. In this way, it is installed on one side plate 2. The other air blower 12 is turned upside down so that its discharge port 16 opens below the conveyor belt 7 and its intake port 18 opens above the conveyor belt 7. 3 is installed. That is, the discharge port 15 of the blower 11 and the intake port 18 of the blower 12 are opposed to each other on the upper side of the conveyor belt 7, and the discharge port 16 of the blower 12 and the intake port 17 of the blower 11 are disposed on the lower side of the conveyor belt 7. Are installed so that they face each other.

  When the air blowers 11 and 12 installed in this way are operated simultaneously, most of the air discharged from the discharge port 15 of the air blower 11 passes over the article on the conveyor belt 7 and the air intake of the air blower 12. Most of the air sucked into 18 and discharged from the discharge port 16 of the blower 12 passes through the conveyor belt 7 and is sucked into the intake port 17 of the blower 11. Thus, a cylindrical air barrier such as a cylindrical shape or a square cylindrical shape that circulates so as to surround the conveyor belt 7 in the vertical direction is generated.

  In the case of this configuration, the air discharged from the discharge port 15 of the blower 11 is obliquely upward (see FIGS. 1 and 2) or horizontally (see FIG. 3) with respect to the articles 8 conveyed on the conveyor belt 7. ) And is directed to the air inlet 18 on the opposite side, so that the hair 8, eyelashes, eyebrows, dust, etc. floating on the article 8 are blown off and blown off and fall down to the article 8. It is prevented from adhering to. Further, since the air blown from the discharge port 15 is directed obliquely upward or horizontally and does not directly hit the article 8, the article 8 is dried or unnecessarily cooled by direct contact with the air, Or there is no possibility of inducing adhesion of bacteria or the like.

  In addition, when the conveyor belt 7 has a breathable surface such as a wire belt, there is a possibility that air that floats or entrains dust on the floor or the like soars from below. In this case, an air curtain can be formed on the lower side of the conveyor belt 7 by the flow of air from the discharge port 16 to the intake port 17, so there is no possibility that air entrained with dust such as on the floor hits the article 8 from below.

  The above description is for the case where the apparatus is installed on a belt conveyor. However, the apparatus is used in a work table in a food factory, a pharmaceutical factory, etc., or in a sushi conveyor or a buffet style restaurant in a rotating sushi restaurant. The configuration and operation in the case of installing on the bat arrangement table and other tables are also the same as described above.

  Although the invention has been described in some detail in its most preferred embodiments, it will be appreciated that a wide variety of embodiments can be constructed without departing from the spirit and scope of the invention.

DESCRIPTION OF SYMBOLS 1 Leg frame 2, 3 Side plate 4 Drive shaft 5 Drive shaft 6 Drive part 7 Conveyor belt 8 Article 11, 12 Blower device 13, 14 Case 15, 16 Discharge port 17, 18 Inlet port 19, 20 Fan 21, 22 Filter

Claims (7)

A method for preventing foreign matter from adhering to an article placed on an article placement unit including a belt conveyor, a work table, an ingredient placement table, and other tables approached by an operator or user,
A pair of air blowers having a discharge port and an air intake port, one of the air blowers is turned upside down with respect to the other air blower, and arranged so as to sandwich the article placement portion, thereby A foreign matter adhesion prevention method, characterized by generating a flow of air surrounding in a vertical direction. A device in which a pair of air blowers are arranged so as to sandwich an article placing unit including a belt conveyor, a work table, a food placing table, and other tables approached by an operator or a user,
Each of the blower devices has a discharge port and an intake port, and the discharge port of one of the blower devices is disposed so as to open above the article placement unit, and the intake port is mounted on the article mounting unit. The discharge port of the other air blower is disposed so as to open below the article placement unit, and the air intake port is disposed on the article placement unit. Arranged to open on the upper side, the air discharged from the discharge port of the one blower device is sucked into the intake port of the other blower device through the article mounting portion, and the other blower device The foreign matter adhesion preventing apparatus is characterized in that air discharged from the discharge port passes through under the article placement portion and is sucked into the intake port of the one blower.   The foreign matter adhesion preventing apparatus according to claim 2, wherein an air filter is disposed in the blower.   The foreign matter adhesion preventing apparatus according to claim 2 or 3, wherein the discharge port and the intake port are slits extending in a length direction of the article placement portion.   The foreign matter adhesion preventing apparatus according to claim 2, wherein a plurality of the discharge ports and the intake ports are provided.   The foreign matter adhesion preventing apparatus according to claim 2, wherein the air discharged from the discharge port of the one blower is directed obliquely upward.   The foreign matter adhesion preventing apparatus according to claim 2, wherein the air discharged from the discharge port of the one blower is directed in the horizontal direction.

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