JPH075309U - Cutting equipment for seedling processing machine - Google Patents

Abstract

(57) [Summary] [Purpose] When processing long seedlings, the roots can be well aligned, but the roots are not cut diagonally during the cutting process, and the soil attached to the roots It is intended to provide a cutting device for a seedling processing machine, which can remove mud and mud before cutting processing. [Structure] A long seedling is brought into a posture in which its root portion is in a downward position, and the lower surface of the root portion is slidably contacted with a guide member to be conveyed while being aligned and guided to be supplied to a sandwiching and conveying device of a cutting device. In a seedling processing machine provided with a cutter for cutting the root at the bottom, a cutting device for the seedling processing machine, characterized in that a correction device for urging the root of the seedling downward is provided on the upper side of the cutter in the seedling conveying direction. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cutting device for a seedling processing machine, which cuts roots while transporting long seedlings such as straw seedlings or grown rice seedlings in a posture in which the root portion is in a downward position.

[0002]

[Prior art]

 Conventionally, long seedlings such as straw seedlings or adult rice seedlings are placed in a posture in which their roots are in a downward position, and at the same time, the lower surface of the roots is received by a guide member and conveyed while sliding and guiding it to the cutting / conveying device of the cutting device. A cutting device for a seedling processing machine, which is provided with a cutter for supplying and cutting a root portion at a lower portion of the sandwiching and conveying device, is already known.

[0003]

[Problems to be solved by the device]

 When the seedling treatment device is fed to the sandwiching and conveying device of the cutting device, the lower surface of the seedling treatment device is guided by the guide member so that the position of the root is kept substantially constant. If the root part is cut with a cutter in this state, the root length becomes uneven and spreads in a cone shape, making it difficult to taping after that, or when planting in a field, seedling division and planting. It causes problems such as incorrect attachment. Also, since the roots of the seedlings had soil and sand attached to them, the cutter was worn early.

[0004]

[Means for Solving the Problems]

 According to the present invention, a long seedling is placed in a posture in which its root portion is in a downward position, and a lower surface of the root portion is slid on a guide member to be fed while being guided while being aligned and fed to a sandwiching and conveying device of a cutting device. In a seedling processing machine equipped with a cutter that cuts the root at the bottom of the plant, a correction device that urges the root of the seedling downward is installed on the upper side of the cutter in the seedling transport direction to correct the root to a drooping posture and to remove soil and sand. The above problems were solved by removing them.

[0005]

[Operation] When the seedlings are arranged in strips and transported by the transporting device for feeding, the roots are placed downward and the lower surface thereof is slidably contacted with the guide member to be transported while aligning the roots. It is supplied to a cutting device that cuts to an appropriate length. The cutting device sandwiches and transports the seedlings with a transport device attached to the cutting device, and the cutter provided below cuts the roots to a certain length during this transport. When the seedlings are transported by the transporting device for feeding, the roots of the seedlings are pressed against the inner member of the plant, so that the roots of the seedlings bend and spread in a direction intersecting the length direction of the stem, but the sandwiching transporting band of the cutting device causes When transported to the front side, the straightening device acts on the roots to straighten the posture downward, and at the same time removes the soil and sand adhering to the roots, thereby cutting the roots of the seedlings unevenly. In addition to being less likely to be removed, soil and sand attached to the roots are removed, so that the cutter can be prevented from prematurely wearing.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the processing apparatus for processing strawberries and seedlings shown in the drawings. The taping machine 1 has casters, so that it is easy to move and the machine frame of the taping machine 1 is located on the operator standing position side. A main switch 2 is attached, and a pair of upper and lower tape drums 4 and 4 are attached to the end of conveyance, and needles are attached to both upper and lower sides of the band-shaped strawberries that are close to the root of the straw, and the thread is wound spirally. It is equipped with a ring 6, a reel 5 for winding taped seedlings, an auxiliary seedling stand 1b, and a conveyor belt 1c inclined at 45 degrees. The main switch 2 and the auxiliary outlet 3 are attached to the switch frame 1a. is there.

Next, a description will be given of the feeding device for the pretreatment device 10. The feeding surface of the feeding device is inclined by 45 degrees so as to match the feeding surface of the taping machine 1, and the strawberries are carried in a leaning posture. As shown in FIG. 1, a pair of upper and lower protruding belts 12 and 12 whose conveying surfaces are inclined by 45 degrees are arranged on the supply section side. The protruding belt 12 and the apparatus related thereto are described in detail below. The belt frame 13 has a U-shape, and the upper end is screwed to the bearing base 15 and the lower end is screwed to the lower frame 16 via the bracket 16a, and the lower driven pulley 17a on the feeding side is attached to the belt frame. The upper driven pulley 17b is pivotally supported on the lower start end side of the frame 13, and the upper driven pulley 17b is pivotally supported on the upper end side of the belt frame 13 via the bracket 13a. The partial drive pulley 18b is attached to the intermediate shaft 20 supported by the bearing of the bearing base 15, and the lower drive pulley 18b is formed in a wide width so as to be closely overlapped with the lower surface of the pulley 32 of the intermediate conveyance belt 30 described later. is doing.

Further, guide plates 22 and 23 are provided between the upper and lower protruding belts 12 and 12 and below the lower protruding belt 12, and the lower edge of the guide plate 22 and the upper edge of the lower guide plate 23 are provided. Is closer to the lower belt 12 with a gap of 1 to 2 mm, and the lower lower protrusion 22a of the guide plate 22 and the lower side of the guide plate 23 are located on the peripheral surface of the lower drive pulley 18b. It is in sliding contact. Further, as shown in FIGS. 1 and 4, a base of a stem tip guide body 25, which is a rod extending along the stem tip side of the upper belt 12 with protrusions, is attached to the end face of the belt frame 13 as shown in FIGS. A cover plate 26 is provided close to the upper surface of the belt 12 with protrusions, and a stock receiving guide plate 27 that receives the root end of the strawberries seedlings conveyed by the belt frame 13 and guides the root alignment is provided. It is provided.

The nipping and conveying device of the pretreatment device 10 is composed of a pair of left and right stem tip side conveyor belts 28, 28, an intermediate conveyor belt 30, 30 and a stock source conveyor belt 31, 31. 28, 28 and the pulleys 32, ... on the upstream side in the transport direction of the intermediate transport belts 30, 30 are attached to the intermediate shaft 20 and the driven shaft 33 on the side thereof, and the pulleys on the lower side 34 .. A plurality of tension pulleys 37 are attached to the inner side surfaces of the conveyor belts 28, 30 ... Attached on the conveyor side, and a stem cutter 38 is attached to the upper portion of one of the conveyor belts 28 on the rotary shaft. , And root cutting cutters 39a, 39a composed of two circular saw blades, which are attached to the upper part of the vertical axis a at a narrow interval, on the lower part of each conveyor belt 31, 31; Cut those roots A cutting device consisting of a circular saw-shaped root cutting cutter 39b attached at the upper part of the vertical axis b and partially penetrating between the outer peripheries of the rotary shafts 39a, 39a. c, a pulley d having a small diameter is attached to the lower part of the vertical axis b, and the belt e wound around these pulleys c and d is driven by the drive pulley e _1. Therefore, the root cutting cutter 39a moves at a low speed, The cutting cutter 39b is rotationally driven at high speed.

Then, a straightening device shown in FIGS. 12 to 13 is provided on the feeding side (hand side in the transport direction) of the cutting device, and the straightening device is connected to the air compressor A by a pipe or a hose. The discharge port is composed of a pair of left and right flattened nozzles B, B. Since the discharge ports of these nozzles B, B face diagonally downward and face the root movement path, The roots that are laterally projected in the process of sliding the roots to the stock receiving guide plate 27 while carrying the attached belts 12 and 12 and aligning the roots are carried by the stock root carrying belt 31 of the cutting device. Before being supplied to the cutting cutters 39a and 39b, it is converted downward by the compressed air injected from the left and right to correct the drooping posture, and at the same time, the soil and mud attached to the roots are blown away and removed. In addition, between the two cutters 39a, 39a that rotate at low speed, the tip of the scraper C that is inclined so that the base side is separated from the transport path is inserted to form a stack between the cutters 39a, 39a. Scraps and mud are scraped out.

When the root cutting process is performed by the cutting device, the root portion is largely shaken by the rotational force of the cutters 39a and 39b to disturb the posture of the seedling. Therefore, the stock conveyor belts 31 and 31 that sandwich and carry the vicinity of the root of the stem are provided, and the chips that scatter during cutting enter the inside of the stock conveyor belts 31 and 31 and pull the pulleys. The left and right partition plates 41a, 41a whose outer portions are attached to the machine frame intrude between the cutters 39a, 39b and the stock conveyor belts 31, 31, and sandwich and convey them. Since they are close to both sides of the route, the scattered chips are prevented from scattering upwards and sticking to or being caught in the stock conveyor belts 31, 31, preventing the seedling posture from being disturbed, and keeping the order well. It can be supplied to the taping machine 1 in a different posture.

FIGS. 14 to 15 show another example of the straightening device, in which a pulley f is attached to the upper part of the vertical axis a, and the vertical axis g supported on the feeding side is provided by the pulley f. A pulley i driven via a belt h and a boss of a plate j formed of a flexible rubber or synthetic resin and having a tip end extending downward and widening are mounted. The plate j is rotated and pressed against the overhanging roots of the seedlings nipped and conveyed toward the cutting device, and the tip end side is twisted and pressed to correct the drooping posture. At the same time, scrape off the dirt and mud that have adhered.

The tip cutter 38 will be described in more detail with reference to FIGS. 16 to 17, in which the tip guide 38a extends obliquely from the opposite side of the conveyance path to approach the outer peripheral upper surface of the tip cutter 38. Of the brush 38b having a water injection port on the outer upper surface of the stalk tip cutter 38. The brush 38b has a water injection port. Since a flexible synthetic resin container 38c containing the drug solution is connected by a hose 38d, when the chips adhere to the container due to the juice that has exuded from the cut end, when the container 38c is grasped by hand, water or the drug solution Is extruded and is applied to the outer peripheral upper surface of the tip cutter 38 by the brush 38b, so that the chips are removed and the sharpness is improved.

Further, the tensioning devices for the left and right stock conveyor belts 31, 31 have the same structure, and the support frame 40 has a front portion and a rear portion which are provided at upper and lower portions of a shaft 42 supported by bearings 43. Are attached with pulleys 41 ..., The lower pulleys 41, 41 are hooked with the stock conveyor belts 31, 31, and the upper pulleys 41, 41 are brought into contact with the inner surface of the non-use side of the intermediate conveyor belt 30. The tension pulley 44a, whose base is screwed to the bent portion of the swing arm 44, is axially supported by the tip of the arm, and the tension pulley 44a is pressed against the outer surface of the intermediate conveyor belt 30 to cause the intermediate conveyor belt 30 to convey the stock conveyor belt 31. Is configured to be driven, and an intermediate portion of the support frame 40 is rotatably supported by a fulcrum pin 45 at a tip end portion of the swing arm 44, and a boss at a base portion of the swing arm 44 is supported. , Shown in Figure 13. As described above, it is rocked by being superposed on a boss which is integrally screwed to the lower frame 16 and integrated with a boss 46, and a support shaft 47 is inserted into the upper and lower bosses and the upper and lower parts thereof are fixed by R pins 48 and 48. The tension spring 51 stretched between the protrusion 42a on the outer side of the base of the swing arm 44 and the adjustment bolt 50 urges the stock conveyor belt 31 to move toward the conveyance path. However, the maximum movement position is limited by the protrusion of the base end of the swing arm 44 contacting the stopper bolt 52. Reference numeral 53 is a guide plate extending along the stalk tip side conveyor belts 28, 28, and the inlet portion is expanded in a V shape so that the stalk portion can be easily introduced.

FIGS. 8 to 9 show a device for suppressing discharge after stretching a strawberries seedling whose roots and stem tips are cut and trimmed so as to have a predetermined density, and driving shafts 35 and 36 respectively. A pair of upper and lower groove pulleys 55, 55 are mounted so as to rotate integrally, and groove pulleys 57, 57 corresponding to the groove pulleys 55, 55 are rotatably mounted on the vertical shafts 56, 56 supported in front of them. A belt 58 having a circular cross section is stretched over the grooved pulleys 55, 57 which are supported and opposed to each other in the front and rear, and a rubber roller 59 having a large number of lugs radially projected on the lower portion of the vertical axis 56. A sprocket 60 is attached, and the sprocket 60 is driven so that the peripheral speed of the rubber roller 59 becomes higher than the conveying speed of the stalk tip side conveyor belt 28 and the belt 58. Is a pair of left and right Is guided by the upper guide rods 61 and 61, and the middle portion is guided while being pressed by a relatively weak middle guide rod 62 that diagonally crosses the extrusion passage from below to above. The brake guide rods 63, 63, which are open and have their intermediate portions fitted into the circumferential grooves of the intermediate portions of the rubber rollers 59, 59, are sandwiched and guided by the break guide rods 63, 63 extending substantially parallel to the lower side as they are, and one of the brake guide rods is held. Since the lower end of the delivery side 63 is attached to the frame plate by a bolt 64 so as to be vertically adjustable, the gap between the break guide rods 63, 63 can be adjusted.

A detection switch 65 is provided at the outer end of the lower bent portion of the brake guide rod 63 having the other free end, and the detection switch 65 is provided so as to approach the rear portions of the brake guide rods 63, 63. Is equipped with non-contact type sensors 66, 66 such as photoelectric sensor, infrared sensor or ultrasonic sensor, facing left and right, the layer of seedlings to be conveyed is thin, and the brake guide rods 63, 63 provide a constant thickness. If the seedling row has gaps (interruptions) or the seedling layer becomes thin when the seedlings are cut, the brake guide rod 63 with the free end returns to the transport passage side due to its restoring force. Since it moves, the detection switch, which has been ON at a predetermined thickness, is turned OFF, and at the next moment, the non-contact type sensors 66, 66 become non-detection state due to the gap between the seedling rows. The detection switch 65 and the non-contact type sensors 66, 66 are connected to the input side of the control unit 68 shown in FIG. 18, and the output side is connected to the solenoid 71 of the clutch 70 via the timer T. There is.

At the start of the work, since the seedlings are not carried out from the seedling processing apparatus 10, the detection switch 65 is OFF and the non-contact type sensors 66, 66 are not detected. Therefore, the transmission shown in FIG. In the device, the clutch 70, which is interposed on the input shaft 72 having the sprocket 73 of the taping machine 1, is disengaged and the taping machine 1 is stopped, but the seedlings are supplied to the seedling processing device 10 and processed. When the brake guide rods 63, 63 are pushed out to have a predetermined thickness, the detection switch 65 is first turned on, and when the non-contact sensors 66, 66 detect it, the output from the control unit 68 is output. As a result, the solenoid 71 is energized, the clutch 70 is turned on, and the taping machine 1 is operated. Also, when the seedlings to be pushed out are interrupted or become thin during the work, and the detection switch 65 is turned off, the clutch is disengaged and the taping machine 1 is stopped. Even without supplying seedlings, it is possible to automatically form strip-shaped seedlings with a predetermined pressure and perform taping treatment.

In the above-mentioned straw seedling processing machine, the seedlings supplied to the treatment section have their roots loosened in the previous step, and when the seedlings are placed on the belts 12 with protrusions and conveyed, The root portion is supported by the guide plate 23, the middle portion is supported by the guide plate 22, the tip of the stem protruding obliquely upward is supported by the stem tip guide body 25, and the root end is supported by the stock receiving guide plate 27. To be done. At that time, since the stalk of strawberries is long, the root portion tends to float up. However, since the stalk tip guide body 25 supports and guides the stalk tip further above the belt with the projection above, the root stock portion rises. In addition, since the whole strawberries are transported in a leaning posture, the roots are aligned while the end faces of the roots slide on the stock receiving guide plate 27 and move.

During such feeding and feeding, the root portion of the seedling fed in a leaning posture overhangs in the direction perpendicular to the length direction of the stem while being slidably guided by the stock receiving guide plate 27. Compressed air that is jetted downward from the left and right nozzles B, B when it is delivered to the front ends of the front side conveyor belts 28, 28 and the intermediate conveyor belts 30, 30 just before the cutting device, Alternatively, by applying pressure to the rotating plate j, the roots protruding laterally are corrected to a downward posture, and the adhered soil and mud are removed. Thereafter, the stem tip cutter 38 cuts the root portion to a proper and well-aligned length by the left and right cutters 39a, 39a and 39b.

In the cutting step, the seedlings, especially the root side, which has a large cutting resistance, need to be firmly clamped and positioned. However, the seedling thickness tends to fluctuate and become unstable. 31 and 31, the middle portion of the support frame 40 is centered on the fulcrum pin 45, and the swing arm 44 that supports the support frame 40 swings inward and outward about the support shaft 47, so that the seedling thickness changes. Therefore, it is conveyed with a substantially constant clamping pressure, and reliable cutting can be performed without excess or deficiency.

The stalks of the seedlings whose cutting ends and roots have been cut are conveyed by being sandwiched by two pairs of upper and lower belts 58, and the roots are sandwiched by rubber rollers 59, 59, and the stalk-side conveying belt 28 and It is pulled out at a high speed from the intermediate conveyor belt 30, then the stalk tip is guided by the upper guide rods 61, 61, and the middle portion is guided by the middle guide rod 62, while the thick root side is at a constant interval. Since it is pushed into the brake guide rods 63, 63, it is continuously extruded and supplied to the taping machine 1 while the seedling thickness is appropriate, but if it becomes thin or discontinues, the clutch 70 will be disengaged as described above. When the taping machine 1 is stopped and pushed out to a predetermined thickness, the clutch 70 is engaged and the taping machine 1 is restarted, and as a result, it is supplied as a continuous band-shaped seedling having a predetermined thickness. Be pinged. When the clutch 70 is not provided, the worker supplies the seedlings on the auxiliary seedling stand 1b to other portions where the seedling row is interrupted.

[0016]

According to the present invention, a long seedling is placed in a posture in which its root portion is in a downward position, and the lower surface of the root portion is slidably contacted with a guide member so that the seedling is conveyed while being aligned and guided to be supplied to the sandwiching and conveying device of the cutting device. In a seedling processing machine provided with a cutter for cutting roots at a lower portion of the sandwiching and conveying device, a correcting device for urging the roots of seedlings downward is provided on the upper side of the cutter in the seedling conveying direction. Causes the roots of the seedlings protruding in the direction orthogonal to the seedling stems in the feeding and transporting process to be hung downward, so when cutting with a cutting device, the roots are cut diagonally and the cutting length is uneven. However, if there is a taping process following that, the taping can be done in a state where the roots are well aligned, and when the planting equipment is used to plant in the field, the roots are well aligned. Planted It is possible to prevent a mistake from occurring. Further, since the straightening device drops dirt and mud attached to the roots, it is possible to suppress wear of the cutter of the cutting device and improve work efficiency and work accuracy.

[Brief description of drawings]

FIG. 1 is a perspective view of a pretreatment device and a taping machine.

FIG. 2 is a side view (viewed from a direction perpendicular to the transport surface) of the transport device for feeding seedlings.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of the processing device.

FIG. 5 is a plan view of the same.

FIG. 6 is a cross-sectional view of a cutting and conveying unit.

FIG. 7 is a plan view of the same.

FIG. 8 is a side view of a sending unit.

FIG. 9 is a plan view of the lower portion.

FIG. 10 is a plan view of an upper delivery section.

FIG. 11 is a vertical cross-sectional view of the same drive unit.

FIG. 12 is a sectional view of a correction device.

FIG. 13 is a plan view of the same.

FIG. 14 is a plan view of another correction device.

FIG. 15 is a sectional view of the same.

FIG. 16 is a perspective view of an upper conveyance section.

FIG. 17 is an enlarged perspective view of a main part of the same.

FIG. 18 is a control circuit diagram.

FIG. 19 is a transmission system diagram.

[Explanation of symbols]

 10 Pretreatment device 12 Belt with protrusion 25 Stem tip guide body 28 Stem side conveyor belt 30 Intermediate conveyor belt 31 Stock former conveyor belt 38 Stem cutters 39a, 39b Root cutting cutter 44 Swing arm 58 Belt 59 Rubber roller B Nozzle

Front page continuation (72) Inventor Tetsuo Shibata 667 Izaiya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Agricultural machinery Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A long seedling is placed in a posture in which its root portion is in a downward position, and the lower surface of the root portion is slidably contacted with a guide member to be conveyed while being guided by root alignment and supplied to a sandwiching and conveying device of a cutting device, and the sandwiching and conveying device. In a seedling processing machine provided with a cutter for cutting the root at the bottom of the device, on the upper side of the cutter in the seedling conveying direction, a seedling processing machine characterized in that a correction device for urging the root of the seedling downward is provided. Cutting device.