JP2020012623A - Water removing or dust removing device - Google Patents

Abstract

To provide a device capable of surely removing a water droplet and dust sticking to a side face of a treating object that has a circular cross section and cannot be made to stand.SOLUTION: The water removing or dust removing device comprising ejection means 4, 5 ejecting compressed air onto a transfer face 2a of transfer means 2 at least from either of an upper side and a lower side of the transfer means, and contact means 7a that is disposed at least in an ejection area 3 of the compressed air disposed above the transfer face 2a and faces the transfer face 2a to contact a treating object A, transfers the treating object A in a transfer direction x, rotating on the transfer face 2a and interposed between the transfer face 2a and the contact means 7a, by causing a direction of a composite speed of a travel speed v1 of the transfer face 2a and a travel speed v2 of the contact means 7a to coincide with the travel direction x of the transfer face and keeping a speed difference between the travel speeds v1 and v2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a water removal device or a dust removal device that blows off water droplets or dust attached to the surface of an object to be treated with compressed air.

For example, in a food manufacturing process, a water removal device is used in which a container filled with food is washed with water, and water droplets attached to the surface of the container are blown off with compressed air to remove water.
If water is not sufficiently removed and a container with water droplets is packed in a cardboard box, water stains on the box or mold may occur, reducing the product value. , And sometimes cause a return. Therefore, a reliable water removal function is desired for the water removal device.

As this type of water removal device, for example, the one shown in FIG. 9 is known.
In this water removing device, a net conveyor 2 is provided on an upper portion of a main body 1 and an object to be removed such as the above-mentioned food container is put on the net conveyor 2 and transported.
A unit cover 3 is provided on the upper surface of the main body 1 so as to cover and release the transfer surface of the net conveyor 2, and an air jet unit 4 is mounted in the unit cover 3. A plurality of air injection nozzles 6 are attached to the air injection unit 4, and the air injection nozzles 6 rotate by the injection reaction force while injecting compressed air guided from a compressed air source (not shown). .
The upper air injection unit 4 is supported on the unit cover 3 by a support mechanism (not shown) so that the vertical position can be adjusted.

An air injection unit 5 is provided below the net conveyor 2, and the air injection unit 5 is also provided with a plurality of air injection nozzles 6 (not shown).
If the apparatus is operated with the unit cover 3 closed, compressed air is injected from the air injection nozzles 6 of the upper and lower air injection units 4 and 5 toward the processing object on the net conveyor 2, thereby removing the air. Water droplets adhering to the surface of the water object can be blown off.

In order to increase the precision of water removal, there is known an apparatus in which the position of an air injection nozzle is set or a guide member is provided in accordance with the shape and size of various processing objects.
For example, the water removal device described in Patent Literature 1 is provided with a guide rod that is inclined with respect to the moving direction of the net conveyor 2, and rotates a cylindrical object to be processed such as cans in an upright state. The compressed air is ejected from the side air injection nozzle (not shown) provided in the upper air injection unit 4 toward all the side surfaces of the processing object.

  The compressed air injected from the air injection nozzle 6 can also blow off dust and the like attached to the surface of the object conveyed by the net conveyor 2. That is, the same configuration as the water removal device shown in FIG. 9 can be used also as a dust removal device.

JP-A-10-238946 JP 2000-042451 A

As described above, in the water removal device having the oblique guide rod, by rotating the columnar processing object, it is possible to reliably blow off the water droplets attached to the side surface.
However, some objects to be processed cannot be erected on the net conveyor 2. For example, a cylinder whose ends are squeezed like a sausage cannot be erected, and must be transported in a lying state. The columnar processing object conveyed in such a lying state cannot be conveyed while rotating using a guide rod as disclosed in Patent Document 1.

As shown in FIG. 10, the front and rear ends a1, a2 in the moving direction x of the columnar processing object A lying on the conveying surface 2a receive compressed air jetted from the upper and lower air jet nozzles 6. It is the part where the pressure is weakened even if it is difficult or reached.
In particular, as the diameter of the processing target A increases, the position of the upper ejection unit 4 must be relatively increased accordingly. If the position of the injection unit 4 becomes higher, when the compressed air injected from the upper air injection nozzle 6 reaches the front and rear ends a1 and a2, the momentum becomes weaker.

As a result, the power to blow off water drops is insufficient, and reliable water removal may not be performed.
On the other hand, if the transport speed of the net conveyor 2 is reduced, the time for compressed air to reach the front and rear ends a1 and a2 of the processing object A increases, so that the remaining water removal can be reduced. However, there is a problem that the water removal rate becomes extremely slow, and the production efficiency in a production line incorporating the water removal device is reduced.

The above problem also occurs in a dust removing device for blowing off dust attached to the processing target A that cannot be raised and transported because the middle is cylindrical and both ends are not flat. is there.
An object of the present invention is to provide an apparatus capable of reliably removing water or dust from a processing object having a circular cross-sectional shape.

  A first aspect of the present invention provides a water removing or dust removing apparatus including: a transport unit that transports a processing target having a circular cross section; and an injection unit that blows compressed air from at least one of the upper and lower sides to a transport surface of the transport unit. In the above, at least in the compressed air injection area above the transport surface of the transport means, contact means for contacting the object to be processed in opposition to the transport surface is provided, and the moving speed of the transport surface and While making the direction of the combined speed with the moving speed of the contact means coincide with the moving direction of the transfer surface, a speed difference is maintained between the moving speed of the contact means and the transfer speed of the transfer surface, and the contact between the transfer surface and the transfer surface is maintained. When the processing object is interposed between the means and the transport surface and the contact means are relatively moved, the processing object is transported in the transport direction while rotating on the transport surface. I do.

The “compressed air injection region” is a range in which the compressed air injected from the injection unit reaches.
Further, the combined speed of the moving speed of the transport surface and the moving speed of the contact means is the sum of both speeds. Then, the calculation is performed with the moving direction of the transport surface as positive and the opposite direction as negative.
If the direction of the combined speed coincides with the moving direction of the transport surface, and the speed difference between the transport surface and the contact unit is maintained, the moving direction of the contact unit may be the same as or opposite to the transport surface. In addition, the state where both maintain the speed difference includes the case where the contacting means is stopped.

  The case where the combined speed of the moving speed of the transfer surface and the moving speed of the contact means does not match the moving direction of the transfer surface is as follows. This is a case where the moving direction of the contact means is opposite to the moving direction of the transport means, and its absolute value is larger than the absolute value of the moving speed of the transport surface. In that case, the processing object sandwiched between the transport surface and the contact means moves in the moving direction of the contact means having a large absolute value. This moving direction is opposite to the moving direction of the transport surface. When the processing object transported in the direction opposite to the transport surface is released from the contact means, it is returned to the contact means by the transport means. Actually, it is impossible to introduce the processing target conveyed from the upstream side in the moving direction of the conveying surface to the contact means. That is, the processing target cannot be transported. Therefore, the case where the direction of the combined speed does not coincide with the moving direction of the transport surface is not included in the present invention.

  The second invention is such that, when the contact means keeps an interval smaller than the diameter of the cross-sectional circle of the object to be processed between the transport means and the object to be processed within the interval, The contact means is pushed up by the processing object, and comes into contact with the outer peripheral surface of the processing object.

  According to a third aspect of the present invention, the contact means has flexibility and slack that can be deformed along the outer peripheral shape of the processing object on the transport surface, and the one processing object continuously transported on the transport surface. Between the object and the subsequent processing object, the contact means is configured to slack below the vertexes of the preceding and following processing objects.

  According to a fourth aspect of the present invention, a driving means for moving the contact means along the transport surface is provided, and the driving means can adjust a moving speed of the contact means.

  In a fifth aspect, the contact means is one or a plurality of long members having a length along a transport direction of the processing object, and both ends in the length direction are fixed at predetermined positions.

According to the first aspect, the processing object having a circular cross section, which is sandwiched between the relatively moving transporting means and the contacting means, can be transported while rotating. Therefore, the compressed air jetted from above or below the transporting means can be evenly applied to the side surface of the processing object, and water droplets and dust can be reliably removed.
In the present invention, since the object to be processed is rotated, the compressed air can be applied to the entire side surface even if only one of the upper and lower jetting means is used. However, if the injection means is provided on both the upper and lower sides, compared to the case of only one of the upper and lower sides, even if the number of rotations of the object to be treated is reduced, water removal or dust can be removed on the entire surface. If the number of rotations is reduced, the transport speed is increased accordingly, and the processing time can be reduced.

In the second and third inventions, when the object to be processed is introduced into the space between the conveying means and the contacting means, the contacting means is pushed up, so that the adjustment of the height position of the contacting means corresponding to the size of the processing object is roughened. Or omitted. Even if the height position of the contact means is not strictly adjusted, the contact means reliably contacts the object introduced between the transport means and the contact means, and transports the object while rotating the object. Can be.
Therefore, even if the diameter of the processing object changes due to a change in the lot, there is a case where the height position of the contact means does not have to be strictly adjusted each time.

  In particular, according to the third aspect, the contact means is deformed along the outer peripheral shape of the object to be processed and can be loosened between the objects to be processed. Even without this, the contact means can be brought into contact with the processing objects having various diameters. Therefore, even if processing objects having different diameters are mixed and conveyed, they can be continuously processed.

  According to the fourth aspect, it is possible to adjust the moving speed of the contact means and adjust the speed difference with the transport means. Depending on the speed difference between the transfer means and the contact means, the number of rotations and the transfer speed of the object to be processed change, so select an appropriate number of rotations according to the diameter of the object to be processed, etc. Can be raised.

  According to the fifth aspect, since the contact means does not move, there is no need for a drive mechanism for moving the contact means. To that extent, the structure can be simplified and maintenance is easy.

FIG. 5 is a front view of the vicinity of the transporting means of the first embodiment, with a front cover of a main body removed. FIG. 4 is a partially enlarged view of a mechanism for adjusting the tension of the contact net according to the first embodiment. It is a partial plan view of a contact net of a 1st embodiment. FIG. 3 is a diagram illustrating a transport state of a processing target according to the first embodiment. It is a front view near the conveyance means of a 2nd embodiment. It is the figure which looked at the upper air injection unit of a 2nd embodiment from the lower part. It is a figure for explaining a function which adjusts pressing force of a contact means in a 2nd embodiment. It is the schematic of 3rd Embodiment. It is an outline perspective view of the conventional water removal device. It is a figure which shows the conveyance situation of the to-be-processed object in the conventional water removal apparatus.

The first embodiment shown in FIGS. 1 to 4 is a water removal device provided with an endless net 7 in the conventional water removal device shown in FIG. In the first embodiment, the same components as those of the conventional water removal device are denoted by the same reference numerals as in FIG. 9, and FIG. 9 is also referred to in the following description.
Note that, of the endless net 7, the lower portion facing the transport surface 2a is the contact means of the present invention. In the following description, the lower part of the net 7 is distinguished from the entire net 7 as a contact net 7a.
FIG. 1 is a front view of the vicinity of a net conveyor 2 which is a conveying means of the present invention. In order to make the positions of the upper and lower air jet units 4 and 5 easy to understand, a front cover of the main body 1 is removed, and the unit cover 3 is removed. The outline is indicated by a two-dot chain line. The air injection units 4 and 5 are injection means of the present invention.

  In addition, in FIGS. 1 and 2, only one side surface of the device is shown, and therefore, a member on the other side of the pair of members forming the set is not shown. However, the other members not shown in FIGS. 1 and 2 are denoted by the same reference numerals as the members on one side to indicate that they are present.

  As shown in FIG. 1, a pair of support plates 8, 8 on the upper surface 1 a of the main body 1 and on the upstream side of the unit cover 3 with respect to the transport direction x of the net conveyor 2, are located downstream of the unit cover 3. On the side, a pair of support plates 9 and 9 are fixed at positions facing each other via the net conveyor 2.

Both ends of a drive shaft 11 having a pair of sprockets 10, 10 are rotatably supported on the upstream support plates 8, 8, and the tension of the entire net 7 and the contact net 7a is adjusted. Both ends of a support shaft 14 that rotatably supports the upper tension rollers 12 and 12 and a support shaft 15 that rotatably supports the lower tension rollers 13 and 13 are fixed. Further, a motor M, which is a driving means of the present invention, is attached to the main body 1 so that its driving force is transmitted to the driving shaft 11. The movement speed of the net 7a can be adjusted by the motor M.
The number of sprockets 10 provided on the drive shaft 11 may be set according to the width of the net 7 or the like.

  Long holes 16, 16 and 17, 17 are formed in the support plates 8, 8, and both ends of the support shafts 14, 15 pass through the long holes 16, 16, 17, 17. It is fixed to the support plates 8 by bolts 18, 18 and 19, 19. Therefore, the height position of the tension rollers 12 and 13 can be adjusted in the range of the elongated holes 16, 16, 17, and 17 (see FIG. 2), and the adjustment height can be adjusted by the tightening force of the bolts 18, 18 and 19, 19. Can be fixed.

The tension of the net 7 can be increased by moving the tension rollers 12, 12 and 13, 13 downward, and reduced by moving the tension rollers 12, 12 and 13, 13 upward.
However, the distance between the lower tension rollers 13, 13 and the transport surface 2a must be larger than the diameter of the cross-sectional circle of the processing target A. Therefore, there is a limit to the downward movement of the tension roller 13, but the tension of the contact net 7a is adjusted according to the positions of the upper and lower tension rollers 12, 13.
Reference numeral 30 in FIG. 2 denotes a collar fixed to the support shafts 14 and 15, which regulates the axial movement of the guide roller 12 and the tension roller 13.

Further, between the downstream supporting plates 9, 9, both ends of a driven shaft 21 having driven sprockets 20, 20 for running the net 7 between the driven sprockets 10, 10 are rotatable. , And both ends of a support shaft 24 for rotatably supporting the tension rollers 22 and 22 and a support shaft 25 for rotatably supporting the tension rollers 23 and 23 are fixed.
Slots 26, 26 and 27, 27 for fixing the support shafts 24, 25 are also formed in the support plates 9, 9, and bolts 28 are formed within the slots 26, 26, 27, 27. , 28 and 29, 29, the height position of the upper and lower tension rollers 22, 22, 23, 23 can be adjusted, and the adjustment height can be adjusted by the tightening force of the bolts 28, 28, 29, 29. Can be fixed.

The tension of the net 7 can be increased by moving the tension rollers 22, 22, 23, and 23 downward, and reduced by moving the tension roller 22, 22 and 23, 23 upward.
Although not shown, also on the support plates 9 and 9, similarly to the support plate 8 shown in FIG. 2, the tension rollers 22 and 23 rotatable around the support shafts 24 and 25 in the axial direction are used. A collar 30 that regulates movement is fixed.

  The number of the tension rollers 12 and 13 attached to the support shafts 14 and 15 and the number of the tension rollers 22 and 23 attached to the support shafts 24 and 25 may be determined according to the size of the net 7, and are not particularly limited. . Then, the tension of the contact net 7a is adjusted by adjusting the height position of the tension rollers 12, 13 and 22, 23.

On the other hand, as shown in FIG. 3, the net 7 is formed in an endless shape by combining a plurality of wires 7b bent in a rectangular wave shape and connecting both ends in the length direction.
The net 7 has a width direction line portion 7c orthogonal to the transport direction x is arranged at equal intervals, and has a smooth surface with little unevenness as a whole.
A linear groove (not shown) in which the width direction line portion 7c fits is formed on the outer peripheral surfaces of the sprockets 10 and 20, and the width direction line portion 7c is fitted into the line groove. . Therefore, the moving force supplied to the drive shaft 11 is transmitted to the driven shaft 21 without the net 7 slipping on the sprockets 10 and 20.

However, the configuration of the net constituting the contact means is not limited to that shown in FIG.
Any net may be used as long as the compressed air injected from the upper air injection unit 4 can reach the processing target A. Further, instead of using the sprocket provided with the linear groove for driving the net, the sprocket may be driven by a chain or the like. In addition, it is preferable that the connecting portion of the wire has no large unevenness and is smooth and flexible as a whole in that the upper portion of the processing object A can be uniformly pressed.

The net 7 is wrapped around the driving-side sprockets 10 and 10 and the driven-side sprockets 20 and 20 provided as described above, and the upper part thereof is passed under the tension rollers 12, 12 and 22, 22, and The side portions pass under the tension rollers 13, 13 and 23, 23.
The height positions of the guide rollers 12, 12, 22, 22 and the tension rollers 13, 13, 23, 23 are adjusted, and the height position and the tension of the contact net 7a are appropriately adjusted.

In the first embodiment, the contact net 7a is sufficiently loosened to come into contact with the transport surface 2a.
Since the contact net 7a is loosened and brought into contact with the transport surface 2a in this manner, when the processing target A is introduced between the contact net 7a and the transport surface 2a, the processing object A lifts the contact net 7a and makes contact. The weight of the net 7a will be received.
Further, the net 7 is configured by a combination of the plurality of wires 7b as described above, and the adjacent wires 7b are shifted from each other at the connection portion of the wires 7b, so that the surface including the wires 7b can be deformed into a curved shape. . Such a structure that can be deformed into a curved surface when the net 7 is viewed as a surface is referred to as a flexible structure of the present invention. That is, the contact net 7a has flexibility.

  In the first embodiment, since the tension of the contact net 7a is set to be particularly weak, the contact net 7a has sufficient flexibility and is easily deformed along a curved surface. Therefore, when the contact net 7a comes into contact so as to cover the processing object A having a circular cross section as shown in FIG. 4, it is deformed along the upper outer peripheral surface of each processing object A.

Then, in FIG. 4, if the processing target A on the transport surface 2a is A1, A2,... From the front in the traveling direction, between the processing target A1 and the processing target A2 following it, The contact net 7a is slackened below the vertices a3 and a3 of the processing objects A1 and A2.
As described above, since the contact net 7a has a sufficient slack, even if the diameter of the cross-sectional circle of the processing object A introduced between the contact net 7a and the transport surface 2a is different, all the processing objects are not processed. The contact net 7a can be reliably brought into contact with the object A.

  In the water removal apparatus of the first embodiment, the moving speed v2 of the contact net 7a is made smaller in absolute value than v1 in the same direction as the moving speed v1 of the transport surface 2a of the net conveyor 2 in the same direction. Try to keep the difference. That is, the motor M is controlled such that the transport surface 2a of the net conveyor 2 and the contact net 7a facing the transport surface 2a move relatively.

In the water removal device of the first embodiment configured as described above, the processing target A placed on the net conveyor 2 on the upstream side of the support plates 8, 8 is located immediately below the tension rollers 13, 13. When it reaches, it enters between the transport surface 2a and the contact net 7a, and is transported while being sandwiched between the transport surface 2a and the contact net 7a.
At this time, there is a speed difference between the transfer surface 2a and the contact net 7a, and the speed v2 of the contact net 7a is smaller than the speed v1 of the transfer surface. A force in the direction opposite to the moving speed v1 (or the moving direction x) of the transport surface 2a acts, and a rotational force in the direction of the arrow r shown in FIG. Therefore, the processing target A is transported in the x direction while rotating in the direction of the arrow r, and advances into the unit cover 3.

In the unit cover 3, compressed air is injected from the air injection nozzles 6 of the upper and lower air injection units 4 and 5, but the processing object A is transported while rotating on the transport surface 2a as described above. , All side surfaces thereof are opposed to the upper and lower air injection units 4 and 5.
Therefore, the compressed air can evenly hit the entire outer peripheral surface of the processing target A that cannot be raised, and the water can be reliably removed.
When the processing object A rotates, it slides on the transport surface 2a, so that the transport speed of the processing object A is lower than the moving speed v1 of the transport surface 2a.

  When the processing target A is discharged from the unit cover 3 and reaches the position of the tension rollers 23 on the downstream side, the processing target A is released from the contact net 7a and is conveyed to the next step without rotating. . The position released from the contact net 7a is outside the unit cover 3 and outside the compressed air injection area, so that even if the processing object A is conveyed without rotation, there is no effect on water removal. Then, the processing target A, which is no longer affected by the contact net 7a, is transported at the moving speed v1 of the transport surface 2a.

As described above, in the first embodiment, since the processing target A is conveyed while rotating in the compressed air injection region, the outer peripheral surface thereof can be surely removed.
The contact net 7a, which is the lower part of the endless net 7, has sufficient slack and flexibility and can be deformed along the shape of the processing object A. When the processing objects A having different diameters are continuously conveyed, the contact nets 7a can be brought into contact with all the processing objects A without adjusting the height position of the contact nets 7a. That is, all the processing objects A are transported while being rotated, so that reliable water removal can be performed.

  In the first embodiment, the processing object A is sandwiched between the net conveyor 2 and the net 7 from the upstream side of the unit cover 3. What is necessary is just to provide in the part corresponding to an area | region. The compressed air injection region is a region where compressed air reaches. In the first embodiment, the inside of the unit cover 3 from which the compressed air is injected from the upper and lower air injection units 4 and 5 is defined as the compressed air injection region.

  Further, in the first embodiment, the contact net 7a is in contact with the transfer surface 2a, but the contact net 7a as the contact means does not necessarily need to be slackened until the contact net 7a contacts the transfer surface 2a. . If the contact net 7a has slack and the distance between the contact net 7a and the transfer surface 2a is smaller than the diameter of the cross-sectional circle of the processing target A, the contact net 7a surely contacts the processing target A introduced therebetween. However, it is possible to cope with the processing target A having a different diameter within the range of the slack.

If the contact net 7a and the transfer surface 2a move relative to each other in contact with each other, the contact portion may be worn. In order to prevent such abrasion, the contact net 7a may be loosened to such an extent that the contact net 7a does not contact the transport surface 2a. It is preferable that the slack amount of the contact net 7a is set in accordance with the diameter of the processing target A and its variation.
However, if the diameter of the cross-section circle of the processing object A is constant and the height of the contact net 7a can be strictly controlled in accordance with the diameter, the tension of the contact net 7a may be increased to hardly loosen the contact net 7a. Absent.

The moving speed v2 of the contact net 7a has a speed difference with respect to the moving speed v1 of the transfer surface 2a. If the combined speed with the transfer speed v1 coincides with the transfer direction x of the transfer surface 2a, the direction does not matter. Absent.
If there is no difference between the moving speeds v1 and v2, the object to be processed is transported sandwiched between the transport surface 2a and the contact net 7a but does not rotate. That is, there is a speed difference between the moving speeds v1 and v2, which is a necessary condition for rotating the processing target A.

  In addition, the said synthetic | combination speed is the total speed of the moving speed v1, v2 which made the direction of the moving direction x of the net conveyor 2 positive. Then, the processing target A sandwiched between the transport surface 2a and the contact net 7a is transported in the direction of the combined speed. Therefore, in order to transport the processing object A in the moving direction x of the transport surface 2a, the direction of the composite speed and the x direction must be the same, that is, the value of the composite speed must be positive.

An example in which the conditions of the moving speeds v1 and v2 of the present invention described above are not satisfied is as follows.
If the moving direction of the contact net 7a is opposite to the moving direction of the transfer surface 2a and their absolute values are equal, the combined speed of the two becomes zero. In this case, the processing object A rotates in place. It will not be transported. Therefore, it is impossible to remove water while transporting the processing object A.
When the contact net 7a and the transfer surface 2a move in opposite directions, and the absolute value of the moving speed v2 of the contact net 7a is larger than the absolute value of the speed v1 of the transfer surface 2a, the direction of the combined speed is determined. Is opposite to the moving direction x of the transport surface 2a. In this case, since the processing target A moves in the moving direction of the contact net 7a, it cannot be conveyed by the net conveyor 2.

Further, depending on the speed difference between the transfer surface 2a and the contact net 7a and the combined speed, the transfer speed and the number of revolutions of the processing object sandwiched between the two change.
Even with the same processing target A, the greater the speed difference between the transport surface 2a and the contact net 7a, the greater the reverse force acting on the upper part of the processing target A, so that the number of rotations increases, and the transport speed increases accordingly. Speed slows down.
The slower the moving speed of the processing object A in the unit cover 3 is, the longer the compressed air is applied, the higher the water removal accuracy, but the longer the processing time.

Further, if the conditions of the moving speeds v1 and v2 are the same, the number of rotations per unit time increases as the processing object A has a smaller diameter of the cross-sectional circle, and the compressed air can be evenly applied to all side surfaces.
Therefore, it is preferable to set the moving speeds v1 and v2 according to the size of the processing target A, the initial wetness, and the like.

For example, the processing object A having a large diameter of the cross-sectional circle has a large surface area and takes a long time to complete one rotation. Water can be removed.
Conversely, the processing object A having a small diameter of the cross-sectional circle has a shorter time required for one rotation than the processing object A having a large diameter. Can be removed.

Further, the transport speed of the processing target A depends not only on the above-mentioned speed difference but also on the moving speed v1 of the transport surface 2a. Therefore, in the case of a processing object having a small diameter and a short time for one rotation, the moving speed v1 can be increased to enable high-speed processing.
If the moving speed v1 of the transport surface 2a and the moving speed v2 of the contact net 7a are selected according to the processing target, the efficiency of water removal processing can be increased.

Further, as described above, in this apparatus, the tension of the contact net 7a is adjusted by adjusting the vertical position of the tension rollers 12, 12, 22, 22 and the tension rollers 13, 13, 23, 23, and The pressing force on the object A can be adjusted.
When the tension of the contact net 7a is small and loose, the weight acts on the object to be treated, so that the pressing force increases. When the tension of the net 7a is large, the slack decreases and the pressing force decreases.

The pressing force is preferably adjusted within a range in which the processing target A is conveyed while rotating smoothly.
For example, if the upper part of the processing target A is pressed with too strong force, the frictional resistance between the processing target A and the transport surface 2a and the net 7 increases, and the processing target A does not rotate or smoothly. It can no longer be transported.
Further, if the pressing force is too weak, the processing object A may slip on the contact net 7 and be conveyed without rotating. Therefore, an appropriate pressing force is required.

The second embodiment shown in FIGS. 5 to 7 is a water removal device using a contact bar 31 which is a long member constituting the contact means of the present invention, and other configurations are the same as those of the conventional device shown in FIG. It is. Therefore, the same reference numerals as those in FIG. 9 are used for the same components as in the related art, and FIG. 9 is referred to in the following description.
FIG. 5 is a front view of the vicinity of the net conveyor 2 which is the conveying means of the second embodiment, in which the conveying surface 2a of the net conveyor 2 is indicated by a dashed line, and the lower part thereof is omitted.
FIG. 6 is a view of the frame 32 to which the contact bar 31 is attached from the bottom side of the upper air injection unit 4, but omits the air injection nozzle 6 attached to the air injection unit 4. I have.

In the second embodiment, a frame 32 is fixed to the bottom surface of the upper air injection unit 4 as shown in FIGS. As shown in FIG. 6, the frame 32 is formed by combining a pair of bar-shaped first frame members 33, 33 and a pair of channel-shaped second frame members 39, 39 into a rectangular shape. The longitudinal direction of this rectangle is parallel to the transport direction.
Supporting pieces 34a, 35a are provided at both ends of each first frame member 33. As shown in FIG. 5, the supporting pieces 34a, 35a have the cross sections of the second frame members 39, 39 facing downward. It is fixed so that it faces inward.
Both ends of the plurality of contact bars 31 are fixed between the second frame members 39 and 39 thus configured.

Since the pair of first frame members 33 have the same configuration, only one of the first frame members 33 will be described below unless otherwise required.
The first frame member 33 includes a first channel member 34 and a second channel member 35 that are separated in the longitudinal direction, and the length of the second channel member 35 is shorter than that of the first channel member 34. .
In addition, the first channel member 34 and the second channel member 35 divided as described above keep an interval between their facing surfaces. The facing surfaces are inserted into the channel-like connecting member 36.

  In the first frame member 33, the first channel member 34 is fixed to the connecting member 36, but the second channel member 35 is slidably inserted. The second channel member 35 can be moved in the longitudinal direction of the frame 32 within the range of the opposing distance to the first channel member 34 and the long holes 36a and 36b (see FIG. 5) formed in the connecting member 36. In addition, the moving position can be fixed by bolts 37 and 38.

The bolts 37 and 38 penetrate the connecting member 36 and the second channel member 35, and fix the second channel member 35 to the connecting member 36 by tightening a nut (not shown) at the tip thereof. However, a screw hole may be formed in one piece of the second channel member 35, and the tips of the bolts 37 and 38 may be screwed into the screw hole.
The long holes 36a, 36b of the connecting member 36 thus arranged are located upstream of the unit cover 3 in the transport direction. That is, the elongated holes 36a and 36b are located outside the unit cover 3.

The contact bar 31 is, for example, a stainless steel wire core 31a having a diameter of 2 [mm] covered with a fluorine resin tube 31b having excellent lubricity. The length of the core 31a is longer than the length of the tube 31b, and both ends of the core 31a protrude from the tube 31b. This protruding portion is fixed to the second frame members 39, 39.
The total length of the contact bar 31 is longer than the length of the frame 32 in the longitudinal direction.
Therefore, the contact bar 31 is fixed between the second frame members 39, 39 while being bent with respect to the linear first frame member 33.

  The second frame member 39 has a pair of support pieces 39a and 39b, and small holes (not shown) are formed in the support pieces 39a and 39b. By inserting the core material 31a protruding from the end of the contact bar 31 into two small holes formed in the support pieces 39a and 39b, both ends of the contact bar 31 are inserted into the second frame members 39 and 39. Are combined. As described above, when the core material 31a is inserted into the small holes of the support pieces 39a and 39b, the contact bar 31 in the bent state exerts a force in the direction of extension due to its elasticity, and the force causes the core material 31a to move from the small hole. It can be prevented from coming off.

As described above, since the contact bars 31 are fixed between the pair of second frame members 39, 39, the core members 31a, 31a protruding from both ends are inserted into the small holes, and the intermediate portion thereof is forcibly applied. If it bends to, it can be removed from the frame 32 by pulling out from the second frame members 39, 39.
The contact bar 31 removed from the frame 32 can be cleaned or replaced. Further, only the tube 31b of the contact bar 31 removed from the frame 32 can be washed or the tube 31b can be replaced.

Also, when the contact bar 31 is replaceable as in the second embodiment, the second frame members 39 are not limited to the channel shape as shown. Even if the second frame member 39 has a rod member or a pipe shape, if the two small holes for inserting the core material 31a are provided, the core material 31a can be inserted into and removed from these small holes to make the contact bar. 31 can be easily attached and detached.
However, the contact bar 31 and the frame 32 need not be detachable. For example, the core 31a may be joined to the second frame members 39, 39 by welding or the like.
In the second embodiment, the weight of the frame 32 is reduced by using channel-like members for the first frame member 33 and the second frame member 39.

In addition, the upper air injection unit 4 described above can adjust the vertical position with respect to the unit cover 3 by turning the handle 40 (see FIG. 5). The frame 32 is fixed to the air injection unit 4 as described above. Therefore, the frame 32 and the contact bar 31 also move up and down by the up and down movement of the air injection unit 4.
Therefore, if the air injection unit 4 is moved up and down via the handle 40, the distance d between the contact bar 31 and the transport surface 2a can be adjusted. The distance d is adjusted in accordance with the diameter of the cross-section circle of the processing target A, and ensures that the contact bar 31 contacts the upper part of the processing target A on the transport surface 2a.

  In practice, it is difficult to make the interval d exactly match the diameter of the processing target A, so the interval d is set slightly smaller than the diameter. Then, when the processing target A is introduced into the space d, the contact bar 31 is slightly pushed upward and comes into contact with the processing target A in a bent state.

Further, the contact bar 31 has three corners P1, P2, and P3 sequentially from the upstream side in the transport direction x. The angle between the corners P2 and P3 is maintained substantially parallel to the transport surface 2a, and this portion is brought into contact with the upper portion of the processing object A on the transport surface 2a.
Further, by fixing the end of the contact bar 31 located on the upstream side of the unit cover 3 to the second frame member 39, the end of the contact bar 31 is inclined upward. Since the contact bar 31 is thus inclined, the interval between the contact bar 31 and the transport surface 2a increases toward the upstream. Therefore, the object to be processed guided to the transport surface 2a is smoothly introduced from the inclined portion to the distance d from the transport surface 2a.

However, the portion between the angles P1 and P2 is defined as an entry guide portion 31c, and the inclination angle θ of the entry guide portion 31c with respect to the transport surface 2a is smaller than the inclination angle on the upstream side of the angle P1, so that the processing target A is more smooth. It is being introduced to.
If the inclination angle θ of the entry guide portion 31c is too large, a force in the direction of pushing back the processing target A that has collided with the contact bar 31 will act. Conversely, if the angle θ is too small, the processing target A will not easily enter the narrow interval d. Therefore, it is necessary to appropriately set the angle θ. However, in order to appropriately set the angle θ of the approach guide portion 31c, two angles P1 and P2 are formed on the contact bar 31 on the upstream side of the unit cover 3. It is doing.

Also, on the downstream side of the unit cover 3, the end side of the contact bar 31 is inclined upward as in the upstream side, and the distance between the contact bar 31 and the transport surface 2 a increases toward the downstream side. Therefore, the posture of the processing target object coming out of the range of pressing the contact bar 31 is stabilized.
Then, on the side where the processing object exits, the inclination angle of the contact bar 31 does not affect the movement of the processing object, so that the angle does not need to be adjusted, and only one angle P3 is set on the downstream side. Has formed.

In the second embodiment, the angle θ between the entry guide 31c and the transport surface 2a can be adjusted, but the specific configuration is as shown in the schematic diagram of FIG.
In FIG. 7, points P4 and P5 are the connecting points between both ends of the first frame member 33 and the contact bar 31.

When the connecting point P4 is moved toward the point P5 from the state shown in FIG. 7, the length of the first frame member 33 becomes shorter with respect to the contact bar 31, so that the entry guide portion 31c is moved with respect to the transport surface 2a. Rise, and the angle θ increases.
To move the connection point P4 to the point P5 side means to loosen the bolts 37 and 38 of the connecting member 36 shown in FIG. 5 to bring the second channel member 35 closer to the first channel member 34.

Further, if the bolts 37 and 38 of the connecting member 36 are loosened to separate the second channel member 35 from the first channel member 34 and increase the length of the first frame member 33, the entry guide portion 31c and the transport surface 2a are formed. Becomes smaller.
As described above, by adjusting the entire length of the first frame member 33 at the portions of the elongated holes 36a and 36b of the connecting member 36, the angle θ of the approach guide portion 31c can be adjusted. If the angle θ is set according to the shape and size of the processing target, the processing target A can be more smoothly entered between the contact bar 31 and the transport surface 2a.

Note that the adjustment range of the elongated holes 36a and 36b is small compared to the entire length of the first frame member 33, and the angle adjustment allows the parallel between the angles P2 and P3 of the contact bar 31 and the transport surface 2a. There is almost no collapse. Then, the height position of the parallel portion is adjusted by the handle 40, and the contact bar 31 is brought into contact with all of the plurality of processing objects A which are continuously conveyed on the conveying surface 2a.
Further, in the second embodiment, since the long holes 36a and 36b of the connecting member 36 are provided outside the unit cover 3 as described above, the unit cover 3c is required to adjust the angle of the approach guide portion 31c. 3 does not have to be opened.

In the second embodiment, since the contact bar 31 as the contact means is stopped, a speed difference v1 is maintained between the contact bar 31 and the transfer surface 2a moving at the speed v1, and the moving speed of the transfer surface 2a is maintained. The composite speed of v1 and the moving speed of the contact bar 31 is the moving speed v1 of the transport surface 2a.
In such a water removal device of the second embodiment, when the processing object A having a circular cross section is placed on the transport surface 2a, the processing object A is transported from the upstream side, and the contact bar 31 and the transport surface 2a Within the interval d. The processing object A sandwiched between the transport surface 2a and the contact bar 31 enters the unit cover 3 while rotating as shown by the arrow due to the speed difference between the contact bar 31 and the transport surface 2a.

Therefore, also in the second embodiment, the processing object A is conveyed while rotating within the unit cover 3 which is the compressed air injection area, and the compressed air injected from the upper and lower air injection units 4 and 5 is the processing target. The foreign matter A is sprayed on all the side surfaces to reliably remove water.
Further, the surface of the contact bar 31 is formed of a tube 31b made of a fluororesin having excellent lubricity so that the frictional resistance between the contact bar 31 and the object A is not so large. Does not need to be made of a material having particularly excellent lubricity, and need not be covered with a tube.
However, if the detachable tube 31b is provided for the core material 31a as in the second embodiment, there is an advantage that the surface of the contact bar 31 can be kept clean simply by replacing the tube 31b. is there.

FIG. 8 is a schematic diagram of the third embodiment.
In the third embodiment, a contact bar 41 made of resin or metal is used as a contact unit instead of the contact bar 31 of the second embodiment. The same components as those in the second embodiment are denoted by the same reference numerals as those in FIGS. 5 and 6, and the following description also refers to FIGS.
The contact bar 41 according to the third embodiment is a linear rod-shaped member, and both ends 41a and 41b of the contact bar 41 are connected to the second frames 39 and 39 (see FIGS. 5 and 5) that constitute the frame 32 via spring members 42 and 43, respectively. 6).
Although not shown in FIG. 8, a plurality of contact bars 41 are supported by the second frames 39, 39 via spring members 42, 43, respectively.

Then, with the spring members 42 and 43 supporting the weight of the contact bar 41, the distance between the contact bar 41 and the transport surface 2a is set to be smaller than the diameter of the sectional circle of the processing target A of the apparatus. . Therefore, the processing object A transported by the net conveyor 2 pushes up the contact bar 41 and is introduced between the transport surface 2a and the contact bar 41. At this time, the spring members 42 and 43 bend, and the contact bar 41 is pressed against the upper portion of the processing object A by the elastic force.
As described above, the processing target A against which the contact bar 41 is pressed is conveyed while rotating in the same manner as in the other embodiments described above, due to the speed difference between the conveyance surface 2a and the contact bar 41.
Since the processing object A passes through the inside of the unit cover 3 while rotating, the compressed air jetted from the upper and lower air jet units 4 and 5 evenly hits all side surfaces during the rotation, so that reliable water removal can be performed.

Further, in the third embodiment, as long as the spring members 42 and 43 are within the displacement range, the processing objects A having different diameters can be conveyed while being rotated.
In order to enable the contact bar 41 to be pushed up by the processing target A, the contact bar 41 may be supported by a flexible string or the like without using the elastically deformable spring members 42 and 43. . However, when the contact bar 41 is supported by a string or the like, the processing target A is pressed only by the weight of the contact bar 41. Therefore, if the weight of the contact bar 41 is too small, The contact bar 41 may spring on the object A. If the contact bar 41 bounces, the object A to be processed may be insufficiently rotated or the conveyance may be unstable.

  On the other hand, when the contact bar 41 is supported by the spring members 42 and 43 as in the third embodiment, even if the weight of the contact bar 41 is reduced, the contact force is maintained by the elastic force of the spring members 42 and 43. The bar 41 can be pressed against the processing target A. Therefore, the use of the spring member increases the degree of freedom in selecting the material of the contact bar that enables stable rotation and transport of the processing target A.

In the second and third embodiments, the wire-shaped contact bar 31 and the rod-shaped contact bar 41 are used as the contact means, but the form of the long member having a length in the transport direction is not limited to this.
If a gap through which the injection air of the upper air injection unit 4 passes is ensured, a band-shaped or plate-shaped member may be used instead of a wire-shaped or rod-shaped member.

In the first to third embodiments, the air injection units 4 and 5 are provided above and below the transport surface 2a. However, the air injection units may be provided only on one of the upper and lower sides, and the other may be omitted. This is because the processing object A rotates when passing through the inside of the unit cover 3, so that water can be removed by compressed air injected from only one of the upper and lower sides.
However, if the compressed air is injected from both upper and lower sides, the compressed air reaches the surface of the processing target A more reliably, so that the processing speed can be increased by increasing the transport speed.

If the upper air injection unit 4 is omitted, the contact means may be constituted by a member that does not allow compressed air to pass, for example, a wide band-shaped member.
In the case where the lower air injection unit 5 is omitted and the compressed air is injected only from the upper air injection unit 4, the conveying means that does not allow the compressed air to pass therethrough, such as a belt conveyor, may be used.

As described above, the first to third embodiments are devices that can reliably remove water from the processing target A that is circular in cross section and that cannot be raised on the transport surface 2a, but is raised like a can. You may make it convey an object which can be laid down.
Further, the water removal device of the above embodiment can also be used as a dust removal device for blowing off dust. Also in this case, since the processing object A is transported while rotating on the transport surface, dust can be reliably removed.

  Ideal for removing water droplets and dust attached to sausage and other surfaces.

A Object 1 to be processed 1 Main body 2 (Conveying means) Net conveyor 2a Conveying surface 3 (Air ejection area) Unit cover 4 Air ejecting unit 5 Air ejecting unit 7 (Contact means) Net 7a (Contact means) Contact net v1 Contact surface Moving speed v2 Moving speed A of the contact means Processing object a3 Vertex M of the processing object (Drive means) Motors 31 and 41 (Contact means, long member) Contact bars P4, P5 (Both ends of long member) Joint point 41a, 41b Ends (of long members)

Claims (5)

Conveyance means for conveying a processing object having a circular cross section,
In a water removing or dust removing device having an injection unit that blows compressed air from at least one of the upper and lower sides with respect to the transfer surface of the transfer unit,
Above the transfer surface of the transfer means and at least in the ejection area of the compressed air, a contact means is provided to contact the processing object in opposition to the transfer surface,
While keeping the direction of the combined speed of the moving speed of the transfer surface and the moving speed of the contact means coincident with the moving direction of the transfer surface, a speed difference is maintained between the moving speed of the contact means and the moving speed of the transfer surface. ,
When the processing object is interposed between the transfer surface and the contact means and the transfer surface and the contact means are relatively moved, the processing object is transferred in the transfer direction while rotating on the transfer surface. Water removal or dust removal equipment. The contact means,
With the transfer surface, while maintaining a smaller interval than the diameter of the cross-sectional circle of the processing object, when the processing object is introduced within the interval, the contact means is pushed up to the processing object. The water removal or dust removal device according to claim 1, wherein the water removal or dust removal device is in contact with an outer peripheral surface of the object to be treated. The contact means has flexibility and slack that can be deformed along the outer peripheral shape of the processing object on the transport surface,
3. The method according to claim 2, wherein the contact means is slackened below a vertex of the front and rear processing objects between one processing object continuously conveyed on the conveyance surface and a processing object following the one processing object. A water removal or dust removal device as described. Driving means for moving the contact means along the transport surface is provided,
The water removing or dust removing apparatus according to any one of claims 1 to 3, wherein the driving unit is capable of adjusting a moving speed of the contact unit.   The said contact means is one or several elongate members which have length along the conveyance direction of the said processing object, The both ends in the length direction are fixed to the predetermined position. Water removal or dust removal equipment.

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