JP3999933B2 - Dust removal device for integrated products - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dust removing device for integrated products such as a product packaging tray or an industrial parts tray used in a supermarket or the like vacuum molded from a plastic sheet.
[0002]
[Prior art]
For example, product packaging trays used in supermarkets, food manufacturers, etc., are molded by a predetermined number of sheets from a raw sheet with a vacuum forming machine, and are sequentially cut and separated into individual products with a trimming machine, etc. Is removed and packaged and distributed to stores and food manufacturers. In this case, dust such as swarf or dust adheres to the product in the vacuum molding process or cutting / separating process, so conventionally, the product is cut and separated by the trimming machine and collected by the accumulator. In the above process, a gap is formed between the individual products by manually spreading, and in that state, air is blown to blow off dust or to be removed by suction with a vacuum cleaner or the like.
[0003]
[Problems to be solved by the invention]
However, the conventional dust removing method has the following problems. That is, a large space is required and the work efficiency is low. Dust cannot be removed reliably. In the case of food trays, etc., if dust removal is incomplete, dust may enter the food or chips and foreign objects may be packaged together in the tray. There is a strict demand for perfection. Furthermore, since this type of tray is charged with static electricity, it is difficult to completely remove dust by simply blowing air, and there is a problem that dust removal is used incompletely.
[0004]
Therefore, an object of the present invention is to provide a dust removal device for an integrated product that can dramatically improve the efficiency of the separation operation and dust removal operation of the integrated product while taking countermeasures for electrostatic removal in a small space.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, an integrated product dust removing device of the present invention is provided with an air blowing nozzle that is provided so as to be movable in the accumulation direction above the horizontally oriented integrated product, and is arranged in a plurality of stages before and after the movement direction. A dust collector that removes dust removed from the product by suction from below, and a static electricity removing means that removes static electricity from the integrated product, and among the air blowing nozzles of the plurality of stages, the air of the nozzle on the front stage side in the traveling direction, It is characterized by separating and separating adjacent products to form a space between products, and blowing air to the space with a nozzle on the rear stage side in the traveling direction to blow away dust adhering to the product. To do.
[0006]
The apparatus of the present invention also includes a dust removal hopper that has shutters that can be opened and closed at the entrance and exit, has a dust collection hopper at the bottom, and surrounds and closes the ceiling and the periphery, and dust installed at the bottom of the dust removal chamber. A removal workbench, a reference plate and a movable plate installed facing the accumulation direction of the integrated product supplied horizontally on the dust removal workbench, an air blowing nozzle installed at the top of the dust removal chamber, and Nozzle head having static electricity removing means, nozzle head raising and lowering means for raising and lowering the nozzle head, and for reciprocating the nozzle head together with the nozzle head raising and lowering means in the accumulation direction of the integrated product supported on the dust removal workbench Nozzle head reciprocating means, a dust collector connected to the dust collection hopper at the bottom of the dust removal chamber via a dust collection duct, and installed on the entrance side of the dust removal chamber An integrated product supply means is characterized in that it comprises an integrated product discharge means placed on the outlet side of the dust removing chamber.
[0007]
The apparatus of the present invention is characterized in that the air blowing nozzles are arranged in two or more stages before and after the nozzle head in the reciprocating direction.
[0008]
Furthermore, the apparatus of the present invention is characterized in that the air spray nozzle is installed corresponding to the upper part and both side parts of the integrated product.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A is a schematic plan view of the entire apparatus according to the present invention, FIG. 1B is a schematic side view thereof, and FIG. 2A is a schematic plan view of a nozzle head reciprocating means in a dust removal chamber. B) is a front view showing the schematic configuration of the main members in the dust removal chamber, FIG. 3 is a side view showing the schematic configuration of the main members in the dust removal chamber, and FIG. 4 is a diagram illustrating the principle of the method of the present invention.
[0010]
1 to 3, 1 is a dust removal chamber, 2 is a dust removal work table, 3 is a reference plate, 4 is a movable plate, 5 is an air blowing nozzle, 6 is a static eliminating means, 7 is a nozzle head, and 8 is a nozzle. Head lifting means, 9 is a nozzle head reciprocating means, 10 is a dust collection hopper, 11 is a dust collection duct, 12 is a dust collector, 13 is an integrated product supply means, 14 is an integrated product discharge means, 15 is a machine base, and 16 is an integration Shows the product.
[0011]
As shown in FIGS. 1 and 3, the dust removal chamber 1 includes shutters 19 and 20 that can be opened and closed by opening and closing cylinders 17 and 18 respectively at an inlet and an outlet, a dust collecting hopper 10 at the bottom, and a ceiling. The part and the periphery are closed and installed at the upper center of the machine base 15.
[0012]
At the bottom of the dust removal chamber 1, a dust removal work table 2 is provided for supporting the integrated product 16 so that it can be expanded and separated in the stacking direction during the dust removal operation. As shown in FIG. 3, the dust removing work table 2 includes a first conveyor frame 2b that is installed to be tiltable between a horizontal state and an inclined discharge state by a cylinder 2a with an outlet side end as a fulcrum, and a first conveyor frame. 2b, and a second conveyor frame 2d that can be moved up and down independently by a cylinder 2c. The upper surface of the first conveyor frame 2b has a round bar-shaped roller 2e at an equal pitch from the inlet side to the outlet side. A bearing groove 2f that supports both ends of the bearing groove 2f so as to freely rotate is formed, and rollers 2e are attached to the inlet side end and the outlet side end of the bearing groove 2f. And the 2nd conveyor frame 2d is arrange | positioned so that raising / lowering is possible corresponding to the part in which the roller 2e between the entrance side edge part and the exit side edge part is not mounted | worn. A bearing groove (similar to the above) is formed on the upper surface of the second conveyor frame 2d to support both ends of the round bar-shaped roller 2g at an equal pitch so as to freely rotate. The roller 2g is mounted in the bearing groove. Yes. Normally, the second conveyor frame 2d is held in the raised position, and the rollers 2g are aligned at the same level as the rollers 2e of the first conveyor frame 2b, and are lowered to the lowered position only during the dust removal operation to accumulate large chips and the like. If they remain between the products 16, they are allowed to pass down and discharged. That is, the lower surface of the integrated product 16 is supported by the rollers 2e attached to the inlet side end and the outlet side end of the first conveyor frame 2b, and the rollers 2g of the second conveyor frame 2d are lowered to form a large gap. The large chips and the like are discharged from the gap.
[0013]
The reference plate 3 and the movable plate 4 can be separated and separated by expanding the accumulated product 16 supplied horizontally on the dust removal work table 2 in the accumulation direction by the air blowing nozzle 5 during the dust removal operation. After completion of the work, it is for accumulation in the original state. As shown in FIG. 2 (B), it is installed facing the accumulation direction of the integrated product 16 supplied on the dust removal work table 2 and is movable. The plate 4 can be moved toward the reference plate 3 by the driving means 4a.
[0014]
In the upper part of the dust removing chamber 1, a nozzle head 7 having an air blowing nozzle 5 and static electricity removing means 6 is installed via a nozzle head elevating means 8 and a nozzle head reciprocating means 9.
[0015]
The air blowing nozzle 5 blows air from the upper side of the integrated product 16 supplied sideways on the dust removing work table 2 to expand the integrated product 16 in the integration direction and separate and separate the individual products 16a. This is used to blow off dust such as chips and dust attached to the individual products 16a or interposed between the individual products 16a, and the tip is along the peripheral edge on the long side of the products 16a. The slits are elongated and are installed in two or more stages in the front and rear direction of the integrated product 16, and further divided into a plurality (three in the figure) in the longitudinal direction of the slits as shown in FIG. In the meantime, static electricity removing means 6 is arranged. Note that side air blowing nozzles 5 a ′ are suspended from the nozzle head 7 on both sides of the integrated product 16 in order to assist the spreading and separation below the integrated product 16.
[0016]
The static electricity removing means 6 discharges static electricity of the integrated product 16 by ejecting positive or negative ion wind and spraying it on the integrated product 16, and is attached to the nozzle head 7 together with the air blowing nozzle 5. .
[0017]
The air blowing nozzles 5 and 5a ′ of the nozzle head 7 are connected to a high-pressure air supply source (such as a compressor) via a flexible hose. The static electricity removing means 6 is similarly connected to an ion wind supply source.
[0018]
The nozzle head 7 is moved up and down by the nozzle head lifting means 8 corresponding to the size of the integrated product 16.
[0019]
As shown in FIGS. 2A and 2B, the nozzle head elevating means 8 includes two guide rods 8a that support the nozzle head 7 so as to be movable up and down, and a ball screw that is driven to rotate forward and backward by a drive motor 8b. It comprises a shaft 8c and a ball nut 8d screwed to the ball screw shaft 8c and fixed to the nozzle head 7. These are attached to a part of the moving block 9a of the nozzle head reciprocating means 9. Yes.
[0020]
As shown in FIGS. 2A and 2B, the nozzle head reciprocating means 9 is supplied with the nozzle head elevating means 8 and the nozzle head 7 laterally on the dust removing work table 2 via a moving block. It is for reciprocating along the accumulation direction of the integrated product 16, and is provided with two guide rods 9c supported at both ends in the dust removal chamber 1 via support brackets 9b, and movable to the guide rods 9c. It comprises a supported moving block 9a, a ball screw shaft 9d and a ball nut 9e that reciprocate the moving block 9a in the above-mentioned direction, and a drive motor 9f that drives the ball screw shaft 9d to rotate forward and backward.
[0021]
As shown in FIG. 1B, a dust collection hopper 10 is attached to the bottom of the dust removal chamber 1, and this dust collection hopper 10 is connected to a dust collector 12 via a dust collection duct 11. Yes.
[0022]
An integrated product supply means 13 is installed on the entrance side of the dust removal chamber 1. As shown in FIGS. 1A and 1B, the integrated product supply means 13 includes a first conveyor 13a, a second conveyor 13b, a third conveyor 13c, and a cradle 13i. The first conveyor 13a is for stocking the accumulated product 16, and is attached to the machine base 15 with an inclination toward the dust removal chamber 1 side (FIG. 1 shows a case of horizontal drawing) The integrated product 16 is constituted by a free roller conveyor that is adapted to transfer the product by gravity. The second conveyor 13b is for bridging the accumulated product 16 from the first conveyor 13a onto the third conveyor 13c at the forward end position, and the first conveyor 13b is moved by the tilting cylinder 13d installed on the machine base 15. It is comprised with the free roller conveyor so that it may incline so that it may become low from the horizontal state to the 3rd conveyor 13c side with the edge part on the 13a side as a fulcrum, and sends out the accumulation | aggregation product 16. The third conveyor 13c is installed at the same level as the dust removal work table 2 so as to be able to move back and forth in the pushing direction on the receiving table 13i fixedly installed on the entrance side of the dust removal chamber 1, and receives from the second conveyor 13b. The accumulated product 16 is transferred onto the cradle 13i by the backward movement, and the accumulated product 16 transferred onto the cradle 13i is pushed at the tip during the forward movement to move the dust removal work table 2 in the dust removal chamber 1. It is for pushing and supplying upward, is constituted by a free roller conveyor, and can be reciprocated back and forth by a pushing cylinder 13e installed on the machine base 15. The forward end position of the third conveyor 13c by the pushing cylinder 13e can be adjusted by the handle 13f according to the size of the integrated product 16. Corresponding to the forward end position of the third conveyor 13c, a stopper 21 for positioning the integrated product 16 on the dust removal work table 2 is installed on a part of the shutter 20 on the outlet side so that the stop position can be adjusted. In addition, the first conveyor 13a to the third conveyor 13c are provided with guide bars 13g for guiding both sides in the lateral direction of the integrated product 16 on the respective conveyor frames, so that the integrated product 16 can be supplied smoothly. Therefore, the stopper 13h is installed so that the height can be adjusted. That is, when the third conveyor 13c is at the forward end position, the second conveyor 13b is tilted so that the first accumulated product 16 on the second conveyor 13b comes off the stopper 13h. As soon as the rear end of the first integrated product 16 passes under the stopper 13h, the second conveyor 13b is immediately returned to the horizontal state. Is stopped by the stopper 13h and waits. Then, as soon as the second conveyor 13b returns to the horizontal state, the third conveyor 13c is moved backward to the bottom of the second conveyor 13b, and dropped and transferred to the receiving table 13i from the integrated product 16 received from the second conveyor 13b. Let me wait. When the dust removal operation of the previous integrated product 16 in the dust removal chamber 1 is completed, the third conveyor 13c moves forward, and the integrated product 16 on the cradle 13i is placed on the dust removal operation platform 2 in the dust removal chamber 1. Push in. When the third conveyor 13c reaches the forward end of the pushing operation, the second conveyor 13b starts to tilt and sends the next integrated product 16 onto the third conveyor 13c. Thereafter, the above-described operation is repeated, thereby The integrated product 16 can be supplied smoothly.
[0023]
On the outlet side of the dust removal chamber 1, an integrated product discharge means 14 is installed. The integrated product discharge means 14 receives the integrated product 16 from the discharge conveyor 14a including a free roller conveyor installed at an inclination on the machine base 15 and receives the integrated product 16 from the discharge conveyor 14a, for example, metal detection by a metal detector. And a next-process transport conveyor 14b that transports the product to the packaging process and the like. Guide bars 14c for the integrated product 16 are provided on both sides of each conveyor.
[0024]
The configuration of the embodiment according to the present invention is as described above. Next, the operation will be described. First, the integrated product 16 is sequentially supplied onto the dust removal work table 2 in the dust removal chamber 1 by the integrated product supply means 13. At this time, the entrance-side shutter 19 is open, but the exit-side shutter 20 is closed. As a result of the pushing operation of the integrated product supply means 13, the integrated product 16 is fed into the center of the dust removal chamber 1 in a state where both sides are guided by the stopper 21 and the tip of the third conveyor 13c. Then, the entrance-side shutter 19 is closed, and the dimension x (corresponding to the depth of one of the products 16a (see FIG. 2) so that the movable plate 4 can expand the integrated product 16 with respect to the reference plate 3). The movable plate 4 is retracted only by B) and FIG. Next, the nozzle head 7 set at a predetermined height position by the nozzle head lifting / lowering means 8 is moved along the accumulation direction of the integrated product 16 supplied on the dust removal work table 2 by the nozzle head reciprocating movement means 9. It is done. At this time, supply of high-pressure air and ion wind to the air blowing nozzle 5 and the static electricity removing means 6 attached to the nozzle head 7 is started. The dust collector 12 has also started to operate.
[0025]
The dust removal will be described with reference to FIG. 4. When high-pressure air is blown toward the integrated product 16 from the two-stage air blowing nozzles 5a and 5b, the air flow is generated from top to bottom. At the same time, the air from the nozzle 5a on the upstream side in the traveling direction generates repulsive forces in the c and d directions on the a and b surfaces of the two adjacent products 16a and 16b. 16b is separated and moved to generate a space x for cleaning. Then, cleaning air is blown toward the space x from the nozzle 5b at the rear stage in the traveling direction, so that the a surface of both products 16a and the b surface of 16b are reliably cleaned. This operation acts on the products one by one as the nozzles 5a and 5b travel, whereby all the products of the integrated product 16 can be surely cleaned. In particular, a flat air flow is necessary to reliably separate the products one by one, and the nozzles 5a and 5b have flat tips. The number of nozzles may be two or more. For example, in the case of a three-stage arrangement, the front row in the traveling direction is dedicated to product separation, and the remaining nozzles are dedicated to cleaning. Can be further ensured. Accordingly, the number of nozzles installed may be two or more, depending on the target product.
[0026]
As described above, by blowing air from the nozzles, the accumulated products 16 are separated one by one to form a gap for cleaning, and cleaning air is blown into the gap to adhere to individual products. Dust such as chips and dust is blown downward, and is collected and removed from the dust collection hopper 10 via the dust collection duct 11 to the dust collector 12. At this time, since static electricity is removed by the static electricity removing means 6, dust can be removed easily and reliably. The above operation can be performed in the same manner for the return of the nozzle head reciprocating means 9. Only one of the round trips may be used.
[0027]
During the dust removal operation, in the present embodiment, the dust removal work table 2 can lower the second conveyor frame 2d with respect to the first conveyor frame 2b. However, it can be removed downward.
[0028]
Furthermore, since it is considered that the expansion and separation of the integrated product 16 by high pressure air spraying may not expand the lower part only from the upper part, in the present invention, air spraying nozzles 5a ′ and 5a ′ are installed on both sides, The lower part can be surely expanded and separated.
[0029]
Further, the air blowing nozzles 5 are arranged in two or more stages in the front and rear, so that, for example, the former stage is mainly responsible for spreading and separating, and the latter stage is responsible for dust removal. However, it can be removed without fail and the dust can be reliably removed.
[0030]
In particular, the present invention is characterized in that the air blowing nozzle 5 is moved in the accumulation direction of the integrated product 16 as shown in FIG. Dust can be removed by spreading and separating. Since the position where the separation is performed moves in order, the gap necessary for the separation of the integrated product 16 as a whole may be about one of the products 16a. For example, when the number of integrated products 16a is 50 or 100 units, the space of the dust removal chamber 1 can be increased several times the integrated size of the integrated product 16 by expanding and separating them all at once. However, according to the present invention, the number of the products may be about one for the product 16a, so that the apparatus can be configured in a compact and compact manner.
[0031]
Although the dust is removed as described above, when the removal of the dust is completed for all the products 16a of the integrated product 16, the movable plate 4 is pressed against the reference plate 3 side to return to the original integrated state, and immediately retracts. Then, the grip is released, the shutter 20 on the outlet side is opened, and the first conveyor frame 2b of the dust removing work table 2 is lifted and discharged. At this time, the supply of high-pressure air and ion wind is also temporarily stopped. After discharging, the exit-side shutter 20 is closed, the entrance-side shutter 19 is opened, the next integrated product 16 is received and the above operation is repeated, and dust is similarly removed. Thereafter, this is repeated.
[0032]
Dust removal is performed while blowing high-pressure air and collecting dust at the same time. However, since this is performed in the sealed dust removal chamber 1, the dust suction efficiency of the blown-out air is improved and reliable. The flow of air is generated, and the dust blown off can be reliably sucked into the dust collector.
[0033]
Now, the operation of the present invention is as described above, but the operation of each movable part is automatically performed in cooperation with a sequence program set by a limit switch, a timer, etc. by an automatic driving operation. It is possible to change the setting on the control panel. Of course, the operation of each movable part can also be operated independently, and is equipped with emergency stop means and the like.
[0034]
In the present invention, the dust removing work table 2 may be an intermittent feed conveyor and a work table on which the integrated product 16 is simply placed. In this case, the dust removing work table 2 is preferably composed of a metal net, a punching plate, or the like that does not hinder the passage of dust. Moreover, supply and discharge | emission of the integrated product 16 to the dust removal work table | surface 2 can also be implemented manually. Furthermore, as a modified embodiment of the present invention, the air blowing nozzle 5 and the static electricity removing means 6 are fixed at a fixed position, and the integrated product is expanded by passing the integrated product while moving it in the collecting direction. Open separation and dust removal may be performed. It is also possible to make the product flow direction and the accumulation direction the same, and to run the nozzle in the same direction as the product loading / unloading.
[0035]
【The invention's effect】
According to the present invention, it is possible to reliably and quickly carry out a large amount of dust removal from an integrated product in a short time by using relatively simple means. It can be implemented efficiently with high accuracy.
[Brief description of the drawings]
FIG. 1A is a schematic plan view of an entire apparatus according to the present invention, and FIG. 1B is a schematic side view thereof.
FIG. 2A is a schematic plan view of a nozzle head reciprocating means in a dust removal chamber, and FIG. 2B is a front view showing a schematic configuration of main members in the dust removal chamber.
FIG. 3 is a side view showing a schematic configuration of main members in the dust removal chamber.
FIG. 4 is a diagram illustrating the principle of the method of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Dust removal chamber 2 Dust removal work table 3 Reference | standard plate 4 Movable plate 5 Air spray nozzle 6 Static electricity removal means 7 Nozzle head 8 Nozzle head raising / lowering means 9 Nozzle head reciprocating means 10 Dust collection hopper 11 Dust collection duct 12 Dust collector 13 Integrated product Supply means 14 Integrated product discharge means 15 Machine stand 16 Integrated products 17 and 18 Opening and closing cylinders 19 and 20 Shutter 21 Stopper

Claims (4)

An air spray nozzle that is provided so as to be movable in the stacking direction above the horizontally stacked product, and is arranged in a plurality of stages before and after the moving direction, a dust collector that suctions and removes dust removed from the stacked product, and the integrated product. With static electricity removing means to remove the static electricity of
Among the air blowing nozzles of the plurality of stages, the air of the nozzle on the upstream side in the traveling direction is separated and separated from adjacent products to form a space between the products. An apparatus for removing dust from an integrated product, wherein the dust attached to the product is blown off and removed by spraying.   A dust removal chamber having a shutter that can be opened and closed at the entrance and exit, a dust collecting hopper at the bottom, and surrounding and closing the ceiling and the periphery, a dust removal worktable installed at the bottom of the dust removal chamber, and the dust removal A reference plate and a movable plate installed facing the accumulation direction of the integrated product supplied horizontally on the workbench; an air blowing nozzle installed in the upper part of the dust removal chamber; and a nozzle head having a static electricity removing means Nozzle head elevating means for elevating and lowering the nozzle head, and nozzle head reciprocating means for reciprocating the nozzle head together with the nozzle head elevating means in the accumulation direction of the integrated product supported on the dust removal workbench; A dust collector connected to a dust collecting hopper at the bottom of the dust removing chamber via a dust collecting duct, and an integrated product supply means installed on the inlet side of the dust removing chamber , The dust removing device of the integrated product characterized in that it comprises the installed integrated product discharge means on the outlet side of the dust removing chamber.   The dust removal device for an integrated product according to claim 2, wherein the air blowing nozzles are arranged in two or more stages before and after the reciprocating direction of the nozzle head.   4. The dust removal apparatus for an integrated product according to claim 2, wherein the air blowing nozzle is installed in correspondence with an upper portion and both side portions of the integrated product.

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