JP2015087088A - Foreign matter adhesion preventive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foreign matter adhesion preventive device of which configuration is simple and compact, showing no restriction over its installation site and preventing worker's head hairs, eyelashes or other physical adhesion matter or floating dusts and the like from dropping onto products or food materials being processed during work, and further having no possibility of bad influence of air for the prevention on the products to be processed.SOLUTION: This invention relates to a device installed at a belt conveyor or working tables, food material mounting tables or other types of table which workers or users approach, and this device includes blowers 8 for blowing air in slant upward direction against an object 20 mounted on the belt conveyor or tables. Each of the blowers 8 is constituted by a closed pipe 9 having a slit-like air blowing port 10 extending in a longitudinal direction at its upper part or lower part and air supplying means 12 for supplying air into the closed pipe 9.

Description

  The present invention relates to a foreign matter adhesion preventing apparatus, and more specifically, for example, in a belt conveyor or work table in a food factory, a pharmaceutical factory, a precision equipment assembly factory, or a buffet-style (biking type) restaurant. Ingredients attached to food bat arrangement table, etc., and the hair, lashes, eyebrows, dust and other foreign matters of workers and users are food, chemicals, precision parts on the conveyor belt and work table, or food with the lid open The present invention relates to a foreign matter adhesion preventing device for preventing adhesion to foods in a bat.

  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 transfer of the dust, and there is a possibility that dust accumulated on the main unit may fall on the workpiece. Furthermore, in the case of this system, since air is directly blown onto the workpiece, not only the workpiece is unnecessarily dried, but also there is a risk of inducing adhesion of bacteria and the like.

  In addition, this method is not assumed to be performed on a food bat arrangement table or the like in a buffet style restaurant.

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 example, a food factory, a pharmaceutical factory, a precision instrument manufacturing factory, etc. When carrying out manual processing while transporting, or when a user approaches a food bat at a buffet-style restaurant, the operator's or user's hair, eyelashes, eyebrows or other body attachments It is an object of the present invention to provide a foreign matter adhesion preventing device that can prevent a kimono, suspended dust, or the like from falling on a processed material or food, and that does not cause adverse effects of air on the processed material.

  The invention according to claim 1 for solving the above-mentioned problems is a belt conveyor on which an operator or a user approaches, or an apparatus installed on a work table, a food table, or other table, wherein the belt conveyor or table A foreign matter adhesion preventing apparatus comprising a blower that blows air in an obliquely upward direction with respect to the placed object.

  In one embodiment, the blower is disposed on both sides of the belt conveyor or table, and in that case, the blower has strength in air blowing force from the blower on one side and air blowing force from the blower on the other side. I will let you. Moreover, the blower which blows off air diagonally below may be further provided in the lower side of the mounting surface of the above-mentioned figurine of the said belt conveyor or a table.

  In one embodiment, the blower includes an obstruction pipe having a slit-like air outlet extending in the length direction at an upper part and / or a lower part, and an air supply means for supplying air into the obstruction pipe. The air supply means is an axial fan. Further, a filter is provided in the closed tube so that the air that has passed through the filter is delivered from the air outlet.

  The present invention is as described above, and there is no restriction on the installation place with a simple and compact configuration, and when carrying out manual work while transporting a processed product in a food factory, a pharmaceutical factory or the like, or a buffet style The air blown out from the blower when a user approaches the food bat at a restaurant in the restaurant causes the operator's or user's hair, eyelashes, eyebrows, other body adhering matter, or floating dust, etc. In this case, since air is blown obliquely upward, it is possible to avoid the adverse effect of the air on the workpiece.

  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.

  A mode for carrying out the present invention will be described with reference to the accompanying drawings. The foreign matter adhesion preventing apparatus according to the present invention is installed on a belt conveyor or a work table in a food factory, a pharmaceutical factory, a precision equipment manufacturing factory, etc., or a food bat arrangement table in a buffet style restaurant, etc. In this example, the belt conveyor is installed.

  FIG. 1 is a perspective view of a belt conveyor provided with a foreign matter adhesion preventing device according to the present invention, and this belt conveyor is arranged on both the leg frame 1 and the upper side of the leg frame 1 in the same manner as a general belt conveyor. The side plates 2 and 3, the drive shaft 4 and the driven shaft 5 that are passed between 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 are hung. It comprises a conveyor belt 7 that is rotated, and performs the same conveying operation as a general belt conveyor.

  The foreign matter adhesion preventing apparatus according to the present invention can be retrofitted to an existing belt conveyor having such a configuration. That is, at least one of the side plates 2 and 3 positioned on both sides of the conveyor belt 7 is provided with a blower 8 that blows air in an oblique direction with respect to the workpiece 20 being conveyed. When it is installed only on one of the side plates 2 and 3, the blower 8 is placed on the side where the operator stands in order to prevent air from hitting the operator and raising the hair and dust adhering to the operator's body. It will be installed.

  The blower 8 includes a closing tube 9 having a slit-like air outlet 10 extending in the length direction at an upper portion thereof, and air supply means for supplying air into the closing tube 9. A rectifying plate 11 that controls the air blowing direction is installed at the air outlet 10. Although the illustrated rectifying plate 11 is provided so as to protrude from the closing tube 9, it can also be provided inside the closing tube 9 toward the air outlet 10.

  As the air supply means, a small axial flow fan 12 is usually used, and one or a plurality of axial flow fans 12 are assembled to the closed tube 9. Moreover, it is good also as connecting the air pipe extended from the air blower to the obstruction tube 9 using the air blower separate from the obstruction tube 9. Preferably, a filter 13 is provided in the closed tube 9 so that the air that has passed through the filter 13 is supplied from the air outlet 10.

  When the conveyor belt 7 is a resin belt, air does not pass through the conveyor belt 7 on the return path and the outward path from below, but when the conveyor belt 7 has an opening like a wire belt, it floats or is on the floor There is a risk that air entrained with dust or the like passes through the conveyor belt 7 on the return path and the outbound path from below and adheres to the workpiece 20 on the conveyor belt 7 on the outbound path. In consideration of such a case, an air outlet 10a that faces the diagonally downward direction of the conveyor belt on the lower return path may be provided in the closing tube 9 together with the air outlet 10 that blows diagonally upward. Alternatively, it is provided separately from the closing tube 9 having the air outlet 10 that blows obliquely upward and the closing tube 9 having the air outlet 10a that blows obliquely downward, and the former is disposed on the upper side and the latter is disposed on the lower side. It is good.

  In the case of the belt conveyor according to the present invention, air is blown obliquely upward from the air outlet 10 of the closing tube 9 to the workpiece 20 conveyed on the conveyor belt 7, so that it will fall onto the workpiece. Or, hair, eyelashes, eyebrows, dust, etc. floating on the workpiece are blown off, and they are prevented from falling and adhering to the workpiece. Further, since the air blown out from the air outlet 10 is directed obliquely upward, it does not directly hit the workpiece, so that the workpiece is dried or unnecessarily cooled by direct contact with the air, or There is no risk of inducing bacterial attachment.

  When the blower 8 is disposed on both the side plates 2 and 3, air blown from both sides collides, and ascending airflow is generated on the workpiece, dust or the like may fall and adhere to the workpiece. Although it is prevented, the raised dust or the like may fall again directly below. In order to avoid the occurrence of such a situation, when the blowers 8 are arranged on both of the side plates 2 and 3, the air blowing force from the blower 8 on one side and the air blowing from the blower 8 on the other side. It is preferable to give strength to strength. That is, the blowing force of the blower 8 on the side where the operator stands (the blower 8 installed on the side plate 2 in FIG. 2) is increased. Thus, the blown up dust or the like is shifted to the side of the blower 8 installed on the side plate 3 having a weak blowing force, and there is no possibility that it will fall directly below, that is, on the workpiece 20.

  In the case where the blower 8 is disposed on both the side plates 2 and 3, when only the blower 8 on one side is operated, only the blower 8 on the side where the operator stands is operated for the reason described above.

  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., a food bat arrangement table in a buffet-style restaurant, or other tables. Since the configuration and operation in the case of installing in the same manner as described above, the description thereof will be omitted.

  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 Blower 9 Closed pipe 10, 10a Air outlet 11 Current plate 12 Axial flow fan 13 Filter 20 Workpiece

Claims (7)

  A belt conveyor which an operator or a user approaches, or a device installed on a work table, a food table, or other table, which blows air in an obliquely upward direction with respect to the belt conveyor or the table. A foreign matter adhesion prevention device comprising:   The foreign matter adhesion preventing apparatus according to claim 1, wherein the blower is disposed on both sides of the belt conveyor or the table.   The belt conveyor according to claim 2, wherein the air blowing force from the blower on one side and the air blowing force from the blower on the other side are given strength.   The foreign matter adhesion preventing apparatus according to claim 1, further comprising a blower that blows air in an obliquely downward direction on a lower side of the placement surface of the above-described object on the belt conveyor or the table.   5. The blower according to claim 1, wherein the blower includes an obstruction pipe having a slit-like air outlet extending in a length direction at an upper part and / or a lower part, and an air supply means for supplying air into the obstruction pipe. The foreign matter adhesion preventing apparatus according to any one of the above.   The foreign matter adhesion preventing apparatus according to claim 5, wherein the air supply means is an axial fan.   The foreign matter adhesion preventing apparatus according to claim 5 or 6, wherein a filter is provided in the closed tube so that air passing through the filter is delivered from the air outlet.

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