JP5960548B2 - Apparatus and method for draining leafy vegetables - Google Patents

Description

  The present invention relates to an apparatus and method for draining leafy vegetables suitable for use in draining leaves of leafy vegetables such as lettuce and cabbage after washing them with water.

In recent years, in the food service industry and the like, it is required to separate and prepare the leaves of leafy vegetables before cooking.
The leaves of such leafy vegetables are peeled off from the harvested leafy vegetables one by one, washed with water, then thrown into a centrifuge and drained by dehydration. It is known that (Patent Document 1)
In addition, when cutting and washing leafy vegetables such as leafy vegetables, cut vegetables are stacked on a rotating conveyor, and air is blown from the bottom of the conveyor toward the top of the conveyor in the middle of conveying the conveyor. 2. Description of the Related Art A continuous raw vegetable processing apparatus that removes water adhering to a cut vegetable by jumping off the cut vegetable is known. (Patent Document 2)

JP-A 63-296648 JP 2011-254758 A

  By the way, hamburgers provided in the food service industry, etc. are sold with large leaves such as lettuce sandwiched between hamburger buns (buns) protruding from the buns in order to give a sense of luxury and volume. For dishes such as salads, large lettuce leaves laid on a container such as a plate are provided so as to protrude from the container. When leaves of leafy vegetables grow large, new challenges arise in draining them.

  For example, in the drainage of leafy vegetables by rotating the drum of the centrifuge disclosed in Patent Document 1, there is not much problem in draining vegetables that have been cut into a large number such as cut vegetables. In the case of draining the large leaves that have been peeled off one by one, the large leaves collide with each other in the drum and the leaves are damaged, or the large leaves overlap in the drum, There was a problem that the drainage of the leaves could not be performed sufficiently.

  Moreover, in the draining device of the continuous raw vegetable processing apparatus disclosed in Patent Document 2, since the raw vegetable scattering prevention lid fixed above the belt for conveying raw vegetables is provided, the leafy vegetables are large. When the leaves are drained, the large leaves are lifted on the belt by the blown air and collide with the fixed raw vegetable scattering prevention lid, and the leaves are damaged, or the conveyor is directed downward from above. Therefore, there is a problem in that only one side of the leaf can be drained because no device for injecting air is provided.

  The present invention was devised in view of such a problem, and in particular, it is possible to perform appropriate drainage without damaging large leaves of leafy vegetables washed with water, and it is efficient while leaving the taste of the leaves. An object of the present invention is to provide an apparatus and method for draining leafy vegetables that can be drained.

To achieve the above object, draining apparatus of leafy vegetables present invention according to claim 1, placing the leaves water-washed leafy vegetables, conveying surface of the leaves with a continuous conveying the leaves to a conveyor belt having air structure is disposed above the conveyor belt, rotates the conveyor belt in the same direction, said conveyor belt cooperates with the leaf with sandwiching the leaves Air is ejected from the lower side to the upper side of the conveying conveyor belt in a clamping area where the guiding conveyor belt having a ventilation structure on the clamping surface, and the conveying conveyor belt and the guiding conveyor belt cooperate to clamp the leaves. And a lower nozzle and an upper nozzle that ejects air from the upper side to the lower side of the guide conveyor belt in the clamping region .

The leaf vegetable draining apparatus according to claim 2 of the present invention is the leaf vegetable draining apparatus according to claim 1, wherein the guide conveyor belt presses the leaves in cooperation with the conveyor belt. It is characterized by.
The leafy vegetable draining apparatus according to claim 3 of the present invention is the leafy vegetable draining apparatus according to claim 1 or 2, wherein the conveyor belt and the guide conveyor belt are each formed of a net-shaped conveyor belt. It is characterized by that.

The leaf vegetable draining device of the present invention according to claim 4 is the leaf vegetable draining device according to any one of claims 1 to 3, wherein the air ejection direction of the lower nozzle and the upper nozzle is: Each is directed to the upstream side with respect to the conveying direction of the conveyor belt.
The draining device for leafy vegetables according to claim 5 of the present invention is the draining device for leafy vegetables according to any one of claims 1 to 4, wherein the guide conveyor belt is upstream in the transport direction of the clamping region. Are supported by at least three rollers, one upstream and one downstream end, and one upstream and upstream of the transport direction upstream end, and the transport conveyor belt is transported in the clamping region The guide conveyor belt and the transport conveyor belt are supported by at least two rollers, upstream from the upstream end and downstream from the downstream end in the transport direction of the sandwiching region, and upstream of the sandwich region. Is characterized in that the interval is gradually narrowed toward the downstream side.

The leafy vegetable draining device according to claim 6 of the present invention is the leafy vegetable draining device according to claim 5, wherein the roller disposed on the upstream side and in the upper part is movably attached. It is characterized by.
The leafy vegetable draining device according to claim 7 of the present invention is the leafy vegetable draining device according to claim 5 or 6, wherein the downstream roller of the conveyor belt and the downstream end of the guide conveyor belt It is characterized in that the roller of the part is a driving roller.

The leaf vegetable draining apparatus according to claim 8 of the present invention is the leaf vegetable draining apparatus according to claim 7 , wherein the drive rollers of the conveyor belt and the guide conveyor belt are driven in synchronization. It is characterized by that.
Draining method of leafy vegetables present invention of claim 9, wherein the leaves of the water-washed leafy vegetables placed on the conveyor belt, the leaf was continuously conveyed, in synchronism with said conveyor belt drive by guiding the conveyor belt to be allowed, it is characterized by performing the draining by ejecting air into the leaf state spread the leaf that has been conveyed, unfolded.

According to the leaf vegetable draining device of the present invention as set forth in claim 1, in the clamping region where the conveyor belt and the guide conveyor belt cooperate to sandwich the leaf vegetable leaf, an upper nozzle and a lower portion are disposed on the leaf. Since air is ejected from the nozzles, the leaves can be drained by the air ejected from the upper and lower nozzles without jumping between both conveyors, and the efficiency of the leaf draining operation is improved.
According to the draining device for leafy vegetables of the present invention according to claim 2, by pressing the leaves in cooperation with the transport conveyor belt and the guide conveyor belt, the leaves of the transport conveyor belt Along the conveyance direction, the film is pushed from the curved state to reduce the curvature of the curve, and is conveyed with the curvature kept small. As a result, the area of the leaves facing the upper and lower nozzles is increased, and the efficiency of draining the leaves of leafy vegetables is further improved.

According to the leaf vegetable draining device of the present invention as set forth in claim 3, since the conveyor belt and the guide conveyor belt are formed by a net-like conveyor belt, the net-like conveyor belt has the ventilation structure. The air from the upper and lower nozzles can easily pass through the ventilation structure, and the water blown off from the leafy vegetable leaves can be easily discharged.

According to the draining device for leafy vegetables of the present invention according to claim 4, since the upper and lower nozzles are respectively directed upstream with respect to the transport direction of the transport conveyor belt, the leaves of the leafy vegetable washed with water water by the air ejected from the upper and lower nozzle, blown into the upstream, once on the side of the leaves of leafy vegetables downstream by draining been said upper and lower nozzle not blown water, leafy vegetables The efficiency of draining the leaves is improved.

According to the draining device for leafy vegetables of the present invention as set forth in claim 5, the guide conveyor belt is supported by at least three rollers, and one roller is placed on the leafy vegetable by the other two rollers . can be arranged on the upstream side in the transport direction above the leaf, the guide conveyor belt roller unit starts to sandwich the leaves of the leafy vegetable can rotate in the obtuse. In addition, the guide conveyor belt is inclined on the upstream side of the sandwiching region where the guide conveyor belt and the transport conveyor belt cooperate to sandwich the leafy vegetable leaves , and the guide conveyor belt and the guide conveyor belt The interval between the conveyor belts is gradually narrowed toward the downstream side. As a result, when the leaves of the leafy vegetables washed with water enter between the holding regions of the conveyor belt and the guide conveyor belt, the leaves are easily spread by the guide conveyor belt. .

According to the leaf vegetable draining device of the present invention described in claim 6, since the roller disposed on the upstream side and in the upper part is movably attached, according to the leaf vegetable having different sizes and shapes. Thus, the obtuse angle of the guide conveyor belt can be adjusted.
According to the leaf vegetable draining apparatus of the present invention as set forth in claim 7, since the rollers on the downstream side in the transport direction of each of the transport conveyor belt and the guide conveyor belt are drive rollers, the transport conveyor belt and the guide conveyor The belt is in a state where tension is applied to the conveyer, and the conveyer leaves can be conveyed without the conveyer slackening.

According to the leaf vegetable draining apparatus of the present invention described in claim 8, since the drive rollers of the transport conveyor belt and the guide conveyor belt are driven in synchronization, the transport conveyor belt and the guide conveyor belt. The leaves of the leafy vegetables sandwiched between the two do not receive a load in the conveying direction and are not easily damaged.
According to draining method of leafy vegetables invention according to claim 9, by a guide conveyor belt and conveyor belt, spread leaves transported the leafy vegetables, air to the leaves unfolded state Since the water is ejected and drained, the area of the leaf receiving the ejected air is increased, and the efficiency of draining the leafy vegetable leaf is improved.

It is a front view which shows the draining device of the leafy vegetable which concerns on one Embodiment of this invention. It is a top view which shows the draining device of the leafy vegetable which concerns on one Embodiment of this invention. It is a right view which shows the conveyance conveyor belt apparatus main body which is a part of the draining apparatus of the leafy vegetable which concerns on one Embodiment of this invention, and is A arrow view of FIG. It is a left view which shows the conveyance conveyor belt apparatus main body which is a part of the draining apparatus of the leafy vegetable which concerns on one Embodiment of this invention, and is B arrow line view of FIG. It is a principal part enlarged view of FIG. 1, and is a figure which shows the state by which the leafy vegetable was clamped. It is an enlarged view of Drawing 4, and is a figure showing the state where leafy vegetables were pinched.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1-6 demonstrates the draining device of the leafy vegetable which concerns on one Embodiment of this invention, It demonstrates with reference to these figures. In this embodiment, lettuce is used as an object for leafy vegetables.

〔Device configuration〕
As shown in FIGS. 1 to 6, the leaf vegetable draining device 10 is mainly composed of a conveyor device 20 and a blower device 40.
Before explaining the apparatus, the water washing of leafy vegetables will be explained first. After removing the leaves one by one from the leafy vegetables that have been harvested in advance, each leaf is put into a bucket (not shown), and then the bucket is shown. The leaves are washed in a water tank, and the washed leaves are prepared in the bucket.

  The transfer conveyor device 20 has a transfer surface S on which the leaves taken out one by one from the bucket are placed so as not to overlap each other, and after the leaves are transferred, the drained leaves are taken out. A conveyor belt (hereinafter simply referred to as a conveyor) 21 having a surface F, and a guide conveyor belt (hereinafter simply referred to as a guide conveyor) provided above the conveyor 21 and sandwiching the leaves in cooperation with the conveyor 21. 22), rollers 29 and 30 for supporting the transport conveyor 21, and rollers 34 to 37 for supporting the guide conveyor 22.

  Further, the transport conveyor device 20 includes a lower nozzle 24 for injecting air upward from below the transport conveyor 21 through a plurality of air holes 23 of the transport conveyor 21, and a plurality of guide conveyors 22 from above the guide conveyor 22. An upper nozzle 26 for injecting air downward through the vent hole 25 is provided. The vent hole 23 and the vent hole 25 are the vent structure of the present application.

Further, since the leaves are sandwiched between the transport conveyor 21 and the guide conveyor 22, the leaves do not have a risk of coming off from the left and right sides (in the direction perpendicular to the paper in FIG. 1) between the two conveyors 21, 22. On both sides (in the direction perpendicular to the plane of FIG. 1) of 22, there is not provided anything that shields a space such as a side wall or a guide conveyor.
The lower nozzle 24 is formed in a pipe shape, and a slit 27 is provided in the longitudinal direction thereof, and the air ejection direction X from the slit 27 is upstream of the conveying direction of the conveying conveyor 21 from above (the right side in FIG. 1). ).

The upper nozzle 26 is formed in a pipe shape, and is provided with a slit 28 in the longitudinal direction thereof, and the air ejection direction Y from the slit 28 is upstream of the conveying direction of the conveying conveyor 21 from right below (the right side in FIG. 1). It is attached so as to be oriented.
The blower device 40 includes an intake housing 43 having a built-in filter 42 that sucks in ambient air from an intake intake 41 and removes dust and the like in the atmosphere, and air sucked from the intake housing 43 through a pipe 44. And a blower 48 for supplying the air in the tank chamber 45 to the exhaust housing 47 through a pipe 46.

  In order to sterilize the air sent through the pipe 46, the exhaust housing 47 has a sterilization filter 49 such as a HEPA filter (High Efficiency Air Filter) or a ULPA filter (Ultra Low Penetration Air Filter). 3) is built-in.

Further, the exhaust housing 47 is connected to the lower nozzle 24 and the upper nozzle 26 via pipes 50a, 50b, and 50c arranged in a trifurcated shape, and the air supplied to the exhaust housing 47 is supplied to the lower nozzle 24 and the upper nozzle. 26 are ejected from the respective slits 27 and 28.
The conveyor 21 is provided at both ends in the conveying direction from the upstream side in the rotational direction with rollers 29 and 30, rollers 31 and 32 attached below the rollers 29 and 30, and between the rollers 31 and 32. The tension adjustment roller 33 is supported and wound.

The guide conveyor 22 includes rollers 34 and 35 from the upstream side in the rotational direction at both ends in the transport direction, a tension adjusting roller 36 attached above the rollers 34 and 35, and an upstream side in the transport direction from the roller 34. It is supported and wound by a guide roller 37 provided above.
And the conveyance conveyor 21 and the guide conveyor 22 cooperate, and the roller 34 and the drive roller 35 which clamp the said leafy vegetables are formed as a clamping area | region.

  The rollers 30 and 35 are individually provided with motors 38 and 39 for rotationally driving the conveyor 21 and the guide conveyor 22, respectively. The motors 38 and 39 have their rotational speeds variable. The speed of the guide conveyor 22 can be adjusted. Hereinafter, the roller 30 and the roller 35 are referred to as the driving roller 30 and the driving roller 35.

The tension adjustment rollers 33 and 36 are provided with vertical holes 51 and 52 in the mounting portion thereof. The tension adjustment rollers 33 and 36 are vertically moved along the long holes 51 and 52 by an actuator (not shown). By doing so, the transport conveyor 21 and the guide conveyor 22 are given tension.
A roller 34 and a driving roller 35 on the guide conveyor 22 side are provided with a vertical hole (not shown) in the mounting portion, and the roller 34 and the driving roller 35 are moved up and down along the long hole by an actuator (not shown). The interval between the conveying conveyor 21 and the guide conveyor 22 between the clamping areas can be adjusted, and the pressing force on the leaves can be adjusted.

The guide roller 37 is provided with an elongated hole 53 in the horizontal direction (left and right direction in FIG. 1) at the mounting portion thereof, and the roller 34 is moved in the horizontal direction along the elongated hole 53 by an actuator (not shown). The angle θ of the guide conveyor 22 between the guide roller 37 and the drive roller 35 sandwiching the roller is adjustable, and the inclination of the guide surface G is variable.
The actuators (not shown) for moving the motors 38 and 39, the tension adjusting rollers 33 and 36, the rollers 34 and 35 of the guide conveyor 22 and the guide rollers 37 up and down or left and right are electronically controlled by a controller (computer) 100. The In particular, the rotations of the motors 38 and 39 are controlled so as to rotate synchronously.

The controller 100 is provided with an input device (not shown) so that the positions of the rollers 33 to 37 can be set in the input device, and the actuators are controlled in accordance with this setting.
Moreover, the conveyance conveyor 21 and the guide conveyor 22 are each comprised with the stainless steel net-like conveyor belt (net conveyor) excellent in opening ratio, and the several ventilation hole 23 is formed in the net conveyor. The net conveyor may be made of a resin such as nylon or polyester.

The electric box 54 houses therein a control device (not shown) of the blower 48, and the control device adjusts the injection pressure, the injection amount, and the injection time of the air ejected from the lower nozzle 24 and the upper nozzle 26. Used to
The controller 100 of FIG. 1 is drawn separately from the electric box 54, but if the controller 100 is housed in the electric box 54, the controller 100 can be made compact.

(Action, effect)
Since the leafy vegetable draining apparatus according to one embodiment of the present invention is configured as described above, the leafy vegetable is drained after being washed as follows.
In this apparatus, for example, as shown in FIG. 1, the vertical position of the tension adjusting roller 33 is first adjusted, and the conveyor 21 is set so that the conveyor 21 is in an appropriate tension state.

  Next, depending on the length in the thickness direction of the curved leaf of the leafy vegetables, the upper and lower sides of the roller 33 and the drive roller 35 are arranged so that the gap between the clamping regions is shorter than the length in the thickness direction of the curved leaf. The position of the direction is adjusted. After the interval between the transport conveyor 21 and the guide conveyor 22 is adjusted, the guide roller 37 adjusts the position in the elongated hole 53 according to the degree of the curvature of the leaves, and between the transport conveyor 21 and the guide conveyor 22. The inclination of the guide surface G is adjusted so that the degree of curvature of the leaf conveyed is reduced, and finally the guide conveyor 22 is set so that the guide conveyor 22 is in an appropriate tension state by the roller 36 for tension adjustment. The

  Then, the switches of the motors 38, 39 and the blower 48 are turned on to adjust the rotation speeds of the transfer conveyor 21 and the guide conveyor 22, and the lower nozzle 24 corresponding to the surrounding environmental conditions such as the rotation speed, temperature and humidity, and the like. The air injection pressure, the injection amount, and the injection time from the upper nozzle 26 are adjusted, and preparation for draining work is completed. Then, the conveyance conveyor 21 and the guide conveyor 22 start rotating in the directions of arrows C and D (rotation direction) in FIG. 1 respectively, and air is appropriately jetted from the lower nozzle 24 and the upper nozzle 26.

When the leaf vegetable draining device 10 is activated, the leaf vegetable drainer removes the washed leaves from the bucket and separates the leaves one by one without the leaves overlapping each other on the conveying surface S. The leaves are placed with the surface of the leaf upside or downside so as to be in a state of being applied.
When the leaf placed on the transport surface S is transported by the transport conveyor 21, the leaf contacts the guide surface G, and the curved leaf along the guide surface G is spread and transported with its curvature reduced. Inserted in a pressed state between the conveyor 21 and the guide conveyor 22.

Therefore, since the leaves pressed between the transport conveyor 21 and the guide conveyor 22 are transported in an unfolded state, the area where the leaves face the transport conveyor 21 and the guide conveyor 22 side. Will increase.
When the leaf having an increased facing area is transported to the downstream side by the transport conveyor 21, air is jetted from the upper nozzle 26, passes through the vent holes 25 of the guide conveyor belt 22, and is on the upper surface side of the leaf. The water adhering to the water is blown off to the upstream side in the transport direction, and draining is performed.

When the leaves are transported further downstream by the transport conveyor 21, air is jetted from the lower nozzle 24, passes through the vent holes 23 of the transport conveyor belt 21, and adheres to the lower surface side of the leaves. Is blown off to the upstream side in the conveying direction, and draining is performed.
The leaves that have been drained on both sides are not in a completely dry state, but remain fresh and umami, reach the take-out surface F by the conveyor 21 and are taken out by an operator and placed in a container such as plastic, Thereafter, the inside of the container is vacuum processed and commercialized.

Thus, the leaf vegetable draining apparatus according to the present invention spreads the leaves and injects air over a wide area, and conveys the leaves while fixing the leaves between the conveyer 21 and the guide conveyer 22. Therefore, the leaves can be drained without jumping, the efficiency of draining operation can be improved while leaving the taste of the leaves, and damage to the leaves can be reduced.
Moreover, since the jet direction of the air jetted from the lower nozzle 24 and the upper nozzle 26 is the upstream side in the transport direction, the water blown by the jetted air is jetted to the leaf side that has not yet drained, and There is an effect that water does not adhere again to the drained leaf side.

Since the conveyor belt 21 and the guide conveyor belt 22 are formed by a net-like conveyor belt, the net-like portion forms the vent holes 23 and 25, and the upper and lower nozzles 24 are provided via the vent holes 23 and 25. , 26 can easily pass through and the water blown off from the leafy vegetables can be easily discharged.
Furthermore, in this embodiment, side walls and guide conveyor belts are not provided on both sides of the transport conveyor 21 and the guide conveyor 22, so that water drained by the air sprayed from the lower nozzle 24 and the upper nozzle 26 is used. The water is drained through the vent holes 23 and 25 as it is without being reflected on the side.

  Since the interval between the transport conveyor 21 and the guide conveyor 22 can be adjusted and the inclination of the guide surface G of the guide conveyor 22 can be adjusted, even if the leaves have different sizes, If the inclination of the guide surface G is set, it is possible to press the leaf between the transport conveyor 21 and the guide conveyor 22 while surely spreading the leaves, and the efficiency of draining work is improved.

When the conveyor 21 and the guide conveyor 22 are formed of a resin net conveyor, even if the leaves collide with the conveyor 21 or the guide conveyor 22, the impact is soft and damage to the leaves can be reduced.
Since the conveyor 21 and the guide conveyor 22 are rotated synchronously, and the driving rollers 30 and 35 are provided on the downstream side in the leaf conveyance direction, the conveyor 21 and the guide conveyor 22 are in contact with the leaf. Since the surface on the side to be pulled is always pulled without being loosened, there is an effect that the leaves are hardly damaged.

  In addition, the method for draining leafy vegetables according to the present invention uses the above-described draining device and sprays air while spreading the leaves of the washed leafy vegetables, so that the same effect as described above is obtained. Can be obtained.

[Others]
Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and can be appropriately modified and implemented without departing from the spirit of the present invention.
For example, in order to drain water, air is first ejected from the upper nozzle 26 and then air is ejected from the lower nozzle 24. However, air is first ejected from the lower nozzle 24 and then air is ejected from the upper nozzle 26. You may comprise.

  Although the lower nozzle 24 and the upper nozzle 26 have been described with their positions fixed, the lower nozzle 24 and the upper nozzle 26 are reciprocated in the horizontal direction according to the rotational speeds of the transport conveyor 21 and the guide conveyor 22, respectively. However, the water draining operation time can be further shortened by injecting air from which the air injection pressure, the injection amount, and the injection time are appropriately adjusted from the lower nozzle 24 and the upper nozzle 26.

In the above description, one lower nozzle 24 and one upper nozzle 26 are provided. However, when each of the lower nozzle 24 and the upper nozzle 26 is insufficient in draining the leaves, a plurality of them are installed in the horizontal direction. Alternatively, air may be ejected from the plurality of lower nozzles 24 and upper nozzles 26, respectively.
The slits of the lower nozzle 24 and the upper nozzle 26 are directed upstream of the leaf transport direction, but the lower nozzle 24 and the upper nozzle 26 are rotated around their axial center lines so that the directivity angle can be adjusted. Also good.

The slits 27 and 28 of the lower nozzle 24 and the upper nozzle 26 have been described as one, but a plurality of slits are arranged in parallel with the slits 27 and 28 in the lower nozzle 24 and the upper nozzle 26. May be.
Although the slits 27 and 28 of the lower nozzle 24 and the upper nozzle 26 are fixed so as to be directed to the upstream side, the lower nozzle 24 is rotated clockwise around its axial center line, and the upper nozzle 26 is You may make it rotate counterclockwise around an axial center line, respectively.

  In the above embodiment, the draining operator explained that each leaf washed with water is placed on the conveying surface S so that the leaves do not overlap each other. For example, a rotating cam is provided below the conveying surface S. The abutment and rotation of the rotating cam may impart vibration to the transport surface S, and the overlapping leaves on the transport surface S may be dispersed by vibration to prevent the leaves from overlapping each other, or If a plurality of conveyor belts set so as to gradually increase the speed in the process upstream of the conveyor surface S are provided, and the plurality of conveyor belts are conveyed so as to deliver leaves washed with water, the plurality of conveyors Since the leaves are dispersed by the speed difference of the conveyor belt, the dispersed leaves may be automatically placed on the transport surface S.

  The conveyor 21 is supported by five rollers 29 to 33 and the guide conveyor 22 is supported by four rollers 34 to 37. However, the conveyor 21 is the remaining three with the rollers 31 and 32 removed. The guide conveyor 22 may be supported by the remaining three rollers 34, 35, and 37 with the roller 36 removed, and in this case, instead of the long hole 53, the guide conveyor 22 may be supported by the arc. You may make it form in the hole of a shape and change the inclination of the guide surface G. FIG.

  The roller 34 and the guide roller 37 that support the guide surface G have been described as rollers having a cylindrical outer peripheral surface. However, the rollers 34 and 37 may have a spindle shape as long as the leaves can be expanded without resistance. You may make it have an outer peripheral surface. Alternatively, each of the rollers 34 and 37 may be divided into a plurality of parts in the axial direction, and the plurality of rollers may be arranged in a shape in which the U shape is widened in plan view. For example, it is divided into three rollers, and the central roller is tilted so that the shaft center faces right beside in the same direction as the drive rollers 30, 35, etc., and the rollers on both sides are tilted so that the outer end shifts upstream. Let them be arranged.

10 Drainage device for leafy vegetables 20 Conveyor device 21 Conveyor (conveyor belt)
22 Guide conveyor (guide conveyor belt)
23,25 Ventilation holes (ventilation structure)
24 Lower nozzle 26 Upper nozzle 30, 35 Drive roller 33, 36 Tension adjusting roller 37 Guide roller 38, 39 Motor 40 Blower device 43 Intake housing 48 Blower 51, 52, 53 Slot 100 Controller C, D Rotating direction F Take out Surface G Guide surface S Conveying surface X Air ejection direction from slit 27 Y Air ejection direction from slit 28 θ angle

Claims (9)

Place the leaves of washed leafy vegetables , transport the leaves continuously and have a ventilation structure on the leaf transport surface,
A guide conveyor belt that is disposed above the conveyor belt, rotates in the same direction as the conveyor belt, clamps the leaf in cooperation with the conveyor belt, and has a ventilation structure on the clamping surface of the leaf When,
A lower nozzle that ejects air upward from below the conveyor belt in a clamping region where the conveyor belt and the guide conveyor belt cooperate to clamp the leaves ;
An apparatus for draining leafy vegetables, comprising: an upper nozzle that blows air downward from above the guide conveyor belt in the clamping region . The leaf vegetable draining apparatus according to claim 1, wherein the guide conveyor belt presses the leaves in cooperation with the conveyor belt. The draining device for leafy vegetables according to claim 1 or 2, wherein the conveyor belt and the guide conveyor belt are each formed from a net conveyor belt. The air ejection direction of the lower nozzle and the upper nozzle is directed upstream with respect to the conveying direction of the conveyor belt, respectively. Leaf vegetable drainer. The guide conveyor belt is supported by at least three rollers, that is, an upstream end portion and a downstream end portion in the conveyance direction of the clamping region , and one upstream portion and an upper portion of the upstream direction in the conveyance direction. And
The conveyor belt is supported by at least two rollers, upstream from the upstream end in the conveyance direction of the clamping region and downstream from the downstream end in the conveyance direction of the clamping region,
5. The gap according to claim 1, wherein the guide conveyor belt and the transport conveyor belt are gradually narrowed toward the downstream side upstream of the clamping region. Leaf vegetable drainer. 6. The leafy vegetable draining apparatus according to claim 5, wherein the roller disposed on the upstream side and in the upper part is movably attached. The leaf vegetable draining apparatus according to claim 5 or 6, wherein a roller on the downstream side of the conveyor belt and a roller on the downstream end of the guide conveyor belt are used as driving rollers. The leaf vegetable draining apparatus according to claim 7 , wherein the driving rollers of the conveyor belt and the guide conveyor belt are driven synchronously. Leaves water-washed leafy vegetables placed on the conveyor belt, the leaf is continuously conveyed by the guide conveyor belt which is driven in synchronism with the conveyor belt, it spreads the leaf that has been conveyed,
A method for draining leafy vegetables, wherein air is blown onto the leaves in a spread state to drain water.

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