CN206715342U - A kind of full-automatic banana stem fiber extractor - Google Patents

Abstract

The utility model discloses a full-automatic banana stalk fiber extraction machine, which is mainly composed of a frame, a stalk feeding and fiber collecting device, an intermittent feeding device, a stem clamping device, a stem cutting device and separation of fibers and impurities. The utility model adopts the stalk feeding fiber collection device composed of the groove wheel mechanism, which can realize the intermittent feeding of the stalk; the intermittent feeding device composed of the cam mechanism can realize the automatic feeding of the banana stalk and reverse pull; the stem clamping device composed of rack and pinion and connecting rod mechanism can realize the clamping of the stem and the release of fibers; the V-shaped knife in the stem cutting device can remove the clamped part, that is, the end that is not scraped The miscellaneous parts are cut off, the structure of each device of the whole machine is compact, the degree of operation coordination is high, and the level of automation is high, which is convenient for the automatic production of banana stem fibers. The utility model is suitable for the comprehensive utilization of banana stems in main banana production areas, and can improve grower's income.

Description

A fully automatic banana stem fiber extraction machine

technical field

The utility model relates to a fiber extraction machine, in particular to a full-automatic banana stalk fiber extraction machine, which belongs to the technical field of agricultural machinery.

Background technique

For a long time, due to the scattered distribution of banana stalks, large volume, high water content, high collection and transportation costs, and lack of suitable mechanized treatment technology, how to deal with them has been perplexing many banana farmers. Due to the fact that they can only bear fruit once, the banana trees after harvest must be cut off, which leads to the production of a large number of banana stalks every year. According to statistics, the area of banana planted in the country is about 4 million mu, and the annual biomass of banana stalks is The amount is as high as more than 20 million tons. Generally, for banana stalks, banana farmers directly put them in the field for convenience or rot or incinerate them naturally. This will not only cause waste of resources but also cause environmental pollution.

The bast part of the banana stalk is rich in high-quality natural plant fibers. This fiber not only absorbs moisture quickly, has low elongation, and has strong antibacterial properties, but also can be blended with other hemp to make various high-end suits, shirts, ties and Papermaking, rope making, etc. If the plant fibers in the discarded banana stalks can be extracted by mechanical methods and utilized, not only can the banana stalks be turned from waste to wealth, but also can effectively alleviate the shortage of hemp resources in China, thereby promoting the growth of bananas. According to estimates, each banana stalk can extract about 1% of fiber (according to the weight ratio of dry fiber to stalk), so 600kg-900kg of fiber can be extracted per hectare of banana stalk.

Due to the regional characteristics of banana planting, in China, the mechanical extraction method of banana straw fiber is still in its infancy, especially the equipment for extracting banana stem fiber, and there are still very few mature machines. There are still some problems in terms of automation control and processing efficiency. The problem is that low-cost and high-efficiency banana straw fiber extraction equipment is almost blank.

The banana stalk scraping machine developed in the thesis "Development of Banana Stem Scraper" is characterized in that the banana stalk is gradually and evenly struck and vibrated by the blade between the fixed knife and the knife wheel blade. Pull out the banana stalks, and then feed the other half, so as to achieve the purpose of fiber extraction. The machine is simple and compact in structure, and can realize the production of banana stalk fibers. However, its degree of automation is low, and its work efficiency is low. It is artificial feeding of banana stalks, which is easy to cause certain dangers. Therefore, the development of a fully automatic agricultural machinery for extracting banana stalk fiber can not only reduce the waste of resources and environmental pollution mentioned in the above background, but also increase the income of farmers in hot areas. More, this whole Automated machinery can also liberate labor and improve production efficiency. For banana farmers, it has great significance that cannot be ignored.

Utility model content

The purpose of this utility model is to improve the problems existing in the above-mentioned prior art, propose and develop a fully automatic banana stalk fiber extraction machine, which is a kind of stalk collection, stalk automatic clamping, stalk automatic feeding A full-automatic banana stem fiber extraction machine integrated with reverse pulling, stem scraping, stem cutting and fiber collection, which can effectively solve the separation of impurities and fibers in banana stems, and the separation of stem ends. Cutting and fiber collection realize automatic operation, and the work efficiency of fiber production is significantly improved.

The utility model achieves the above object through the following technical solutions: a fully automatic banana stalk fiber extraction machine, including a frame, a stalk feeding and fiber collection device, an intermittent feeding device, a stem clamping device, and a stem cutting device. device and fiber and impurity separation device, wherein the stalk feeding and fiber collection device is located on the left side of the frame, the intermittent feeding device is located at the front end of the right side of the frame, and the fiber and impurity separation device is located on the machine The rear end on the right side of the frame, the stem clamping and stem cutting device are located in the middle of the right side of the frame.

Further, the stalk feeding and fiber collecting device is positioned by the frame I, and the stalk sending and fiber collecting device includes a first shaft, a fiber collecting box, a conveyor belt, I bearings, a second shaft, a sheave, a dial Disc, driving rod, first motor, drum and frame 1, wherein: the fiber collection box is located at the end of the stalk feeding and fiber collection device, the first shaft, the second shaft and the drum pass through four identical The type I bearing is fixed on the frame I, and the sheave is installed on the second shaft; the dial is installed on the output shaft of the first motor and is connected with the sheave through a lever, and the first shaft and the second The shafts are connected by conveyor belts.

Further, the intermittent feeding device is positioned by the frame II, and the intermittent feeding device includes a second motor, a cam, a cylindrical roller, a follower, a frame II, II bearings, a third shaft, a connecting rod I, The slider I and the guide block, wherein: the second motor is fixed on the frame II, the third shaft is fixed on the frame II through two bearings of the same type II, and the driven parts are respectively connected with the third shaft , Cylindrical rollers form a rotational connection, the cam is installed on the motor shaft of the second motor and is connected with the follower through a cylindrical roller high pair, and the connecting rod I is respectively hinged with the follower and the slide block I, so Said slide block 1 forms a moving pair with the guide block.

Further, the stalk clamping device is positioned by a slot-type guide rail, and the stalk clamping device includes a first hydraulic cylinder, a rack, a gear, a rocker I, a rocker II, a connecting rod II, a sliding support and Clamping plate, wherein: the sliding support is installed on the slot-type guide rail, the first hydraulic cylinder is fixed at one end of the sliding support, and one end of the rack is fixed with the telescopic rod of the first hydraulic cylinder , the gear and the sliding support form a rotational connection through a short shaft welded on the sliding support, the rocker I is fixed on the end face of the gear, and the rocker II and the sliding support are welded to the sliding support The other short shaft on the top forms a rotational connection, and the rocker I and the rocker II are respectively hinged with the end and middle part of the connecting rod II, and the middle part of the clamping plate forms a rotational connection with the other end of the connecting rod II.

Further, the fiber and impurity separation device is positioned by frame III, and the fiber and impurity separation device includes frame III, guide groove, extruding unit, scraping unit, impurity collection box and transmission system, wherein: the guide The groove, squeeze roller unit, scraping unit and foreign matter collection box are located at the upper end of frame III from front to back.

Further, the extrusion unit is composed of a extrusion roller bracket, a square fixed bearing, a square sliding bearing, a spring, a screw, a nut, an upper extrusion roller and a lower extrusion roller, wherein: the lower extrusion roller passes through two square The fixed bearing is fixed on the bottom of the squeeze roller support, and the upper squeeze roller is fixed directly above the lower squeeze roller through two square sliding bearings. A cylindrical groove with a depth of 1 cm is opened on the upper end of the square sliding bearing. That is the outer diameter of the spring, a gasket is consolidated in the middle of the screw, its thickness is 5-7mm, the outer diameter is 5-8mm larger than the outer diameter of the spring, and the inner diameter is the cross-sectional diameter of the screw, and one end of the spring is against At the bottom of the cylindrical groove, the other end abuts against the lower end surface of the washer, and the nut is fixed on the upper end surface of the squeeze roller bracket and is threadedly connected with the screw rod.

Further, the scraping unit is composed of a knife roller, a scraper, a III bearing and a concave plate, wherein: the scraper is fixed on the outer peripheral surface of the knife roller through bolts, and the shafts at both ends of the knife roller are fixed by two III bearings. Knotted on the frame III, the concave plate is arranged under the knife roller and leaves a gap of 5-10 mm therewith.

Further, the transmission system is composed of a first pulley, a second pulley, a first belt, a first sprocket, a first chain, a second sprocket, a first gear, a second gear and a third motor, wherein: the The third motor is fixed on the frame III, the first pulley is fixed on the motor shaft of the third motor, the second pulley is fixed on one end of the knife roller and connected with the first pulley through the first belt, The first sprocket is fixed on the other end of the knife roller, the second sprocket is fixed on one end of the lower squeeze roller and connected with the first sprocket through the first chain, the first gear, the second gear The other ends of the lower squeeze roller and the upper squeeze roller are fixed respectively, and the first gear is meshed with the second gear.

Further, the stem cutting device is positioned by a sliding support, and the stem cutting device is composed of a second hydraulic cylinder, a V-shaped movable knife and a fixed knife, wherein: the second hydraulic cylinder is fixed on the sliding support At one end, the V-shaped knife is fixed on the telescopic rod of the second hydraulic cylinder, and the fixed knife is fixed at the other end of the sliding support.

The present invention is used for the extraction of banana stalk fibers. The specific method of use is: firstly place the banana stalks that have been cut into sections neatly on the conveyor belt of the stalk feeding and fiber collection device, and then, the stems on the sliding support The stalk clamping device automatically clamps the stalk, and sends the stalk to the fiber and impurity separation device in the horizontal direction, for fiber production and impurity recovery, and then the sliding support pulls the prepared fiber from the scraping unit Pull it back to the original position, the V-shaped moving knife stretches out and cooperates with the fixed knife to cut off the end of the stalk, then the moving knife retracts, and the fibers fall on the conveyor belt. At this time, the conveyor belt rotates and sends the prepared fibers into the to the fiber collection box, while the stalks to be processed move to the automatic stalk clamping station again.

The working process of the present invention is as follows: the whole process is divided into three stations, which are respectively the stalk feeding and fiber collecting station, the stalk clamping and cutting station, and the fiber making station. The working process is divided into six working steps:

The first step is to place the banana stalk to be processed flat on the conveyor belt of the stalk conveying and fiber collection device, start the first motor, and when the stalk is conveyed to the stem clamping station, the slotted wheel stops rotating, and the conveyor belt stops ;

In the second step, the telescopic rod of the first hydraulic cylinder is stretched out, and the clamping plate is driven upward through the rack-and-pinion mechanism and the connecting rod mechanism, thereby realizing the automatic clamping of the stalk;

The third step is to start the second motor, the cam makes a push movement, and the sliding support slides along the slotted track towards the fiber and impurity separation device, and then the stalk reaches the fiber preparation station to realize automatic feeding scraping. At this time, the cam mechanism enters the far rest state;

In the fourth step, when the cam rotates through the far angle of repose for return movement, the sliding support drives the device for clamping the stalk to move along the groove-shaped guide rail, and the stalk is automatically pulled back to the stalk cutting station. At this time, the cam The institution enters a near-rest state;

In the fifth step, the telescopic rod of the second hydraulic cylinder is stretched out, and the V-shaped movable knife is pushed to cut off the end of the stalk. The fiber falls on the conveyor belt, and the V-shaped movable knife is retracted, thereby realizing the separation of the end of the stalk and the fiber;

In the sixth step, the grooved wheel starts to rotate, driving the conveyor belt of the stalk conveying and fiber collection device to rotate, and then the fibers dropped at the end of the conveyor belt are sent to the fiber collection box, and the next batch of stalks enters the stalk clamper again. position, the grooved wheel stops rotating again, and this reciprocating cycle can realize the fully automatic production of banana stem fibers.

The inventiveness of the present invention lies in: it can realize the automatic feeding of the stem and the automatic collection of the fiber, and at the same time realize the automatic clamping and feeding of the banana stem and the automatic back pulling and cutting of the fiber, and the work coordination of each device of the whole machine is high , compact structure, can fully realize the automatic production of banana stalk fiber, effectively reduce the labor intensity of banana farmers in hot areas, improve the comprehensive utilization rate of banana stalks, and reduce environmental pollution at the same time.

Compared with the prior art, the present invention has the following main advantages:

1. It can realize the automatic operation of banana stem fiber extraction;

2. Adopt automatic feed-type stalk scraping and automatic reverse pull-type fiber and impurity separation, adopt intermittent stalk feeding and fiber collection, each device coordinates and coordinates, and each process can be carried out in an orderly manner;

3. The use effect is good, the extracted stalk fiber has low impurity rate and high production efficiency;

Description of drawings

Fig. 1. basic structure schematic diagram of the present invention;

Fig. 2. Schematic diagram of the structure of the stalk conveying and fiber collecting device of the present invention;

Fig. 3. structural representation of intermittent feeding device of the present invention;

Fig. 4. Schematic diagram of the structure of the stalk clamping device of the present invention;

Fig. 5. do the stem tip excision device structural representation of invention;

Fig. 6. Schematic diagram of the structure of the fiber and impurity separation device of the present invention;

Fig. 7. Schematic diagram of the structure of the extruding unit in the fiber and impurity separation device of the present invention;

Fig. 8. Schematic diagram of the structure of the scraping unit in the fiber and impurity separation device of the present invention;

Fig. 9. Schematic diagram of the structure of the transmission system in the fiber and impurity separation device of the present invention;

Among the figure: 1, frame, 2, stalk feeding and fiber collection device, 21 frame 1, 22, first shaft, 23, fiber collection box, 24, conveyor belt, 25, I bearing, 26, second shaft , 27, grooved wheel, 28, dial, 29, lever, 210, first motor, 211, drum, 3, intermittent feeding device, 31, frame II, 32, second motor, 33, cam, 34 , cylindrical roller, 35, follower, 36, II bearing, 37, third shaft, 38, connecting rod I, 39, slide block I, 310 guide block, 4, stem clamping device, 41, card slot Type guide rail, 42, first hydraulic cylinder, 43, rack, 44, gear, 45, rocker I, 46, rocker II, 47, connecting rod II, 48, sliding support, 49, clamping plate, 5 , stem cutting device, 51, second hydraulic cylinder, 52, V-shaped moving knife, 53, fixed knife, 6, fiber and impurity separation device, 61, frame III, 62, guide groove, 63, extrusion unit, 6301, extrusion roller bracket, 6302, square fixed bearing, 6303, square sliding bearing, 6304, spring, 6305, screw rod, 6306, nut, 6307, upper extrusion roller, 6308, lower extrusion roller, 6309, gasket, 64, scraping unit, 6401, knife roller, 6402, scraper, 6403, III bearing, 6404, concave plate, 65, impurity collection box, 66, transmission system, 6601, first pulley 6602, second pulley, 6603, the first pulley A belt, 6604, first sprocket, 6605, first chain, 6606, second sprocket, 6607, first gear, 6608, second gear and 6609, third motor.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Below, in conjunction with accompanying drawing, describe embodiment of the present invention in detail

As shown in Figure 1: the present invention consists of a frame 1, a stem feeding and fiber collecting device 2, an intermittent feeding device 3, a stem clamping device 4, a stem cutting device 5 and a fiber and impurity separating device 6,

Wherein, the stalk feeding and fiber collecting device 2 is located on the left side of the frame 1, the intermittent feeding device is located at the front end of the right side of the frame 3, and the fiber and impurity separating device 6 is located on the right side of the frame 1 The rear end of the stalk clamping and stem cutting device is located in the middle of the right side of the frame 1.

As shown in Figure 2: the stalk feeding and fiber collecting device 2 is positioned by the frame I21, and the stalk clamping device includes a first shaft 22, a fiber collection box 23, a conveyor belt 24, I bearings 25, and a second shaft 26 , sheave 27, dial 28, driving lever 29, first motor 210, cylinder 211 and frame I21, wherein: said fiber collection box 23 is positioned at the end of stalk feeding device 2; said first shaft 22 and The second shaft 26 and the cylinder 211 are respectively fixed on the frame I21 by four I bearings 24 of the same type, and the sheave 27 is installed on the second shaft 26; the dial 28 is installed on the output of the first motor 210 The first shaft 22 is connected to the second shaft 26 through a conveyor belt 23 and is connected to the sheave 27 through a lever 29 .

As shown in Figure 3: described intermittent feeding device 3 is positioned by frame II31, and described intermittent feeding device 3 comprises second motor 32, cam 33, cylindrical roller 34, follower 35, frame II 31, II bearing 36, the third shaft 37, connecting rod I 38, slide block I 39 and guide block 310, wherein: the second motor 32 is fixed on the frame II 31, and the third shaft 37 passes through two identical The type II bearing 36 is fixed on the frame II 31, and the follower 35 forms a rotational connection with the third shaft 37 and the cylindrical roller 34 respectively, and the cam 33 is installed on the motor shaft of the second motor 32 and is connected with The follower 35 is connected by a pair of cylindrical rollers 34; the connecting rod I 38 is respectively hinged with the follower 35 and the slider I 39, and the slider I 39 and the guide block 310 form a moving pair.

As shown in Figure 4: the stalk clamping device 4 is positioned by a grooved guide rail 41, and the stalk clamping device includes a first hydraulic cylinder 42, a rack 43, a gear 44, a rocker I45, and a rocker II 46. Connecting rod II47, sliding support 48 and clamping plate 49, wherein: the sliding support 48 is installed on the grooved guide rail 41, the first hydraulic cylinder 42 is fixed on one end of the sliding support 48, One end of the rack 43 is solidified with the telescopic rod of the first hydraulic cylinder 42, and the gear 44 and the sliding support 48 form a rotational connection through a short shaft welded on the sliding support 48; the rocking bar 1 45 is fixed Knotted on the end face of the gear 44, the rocking bar II 46 and the sliding support 48 form a rotational connection through another short shaft welded on the sliding support 48; the rocking bar I 45 and the rocking bar II 46 are respectively connected to the connecting One end and the middle of the rod II 47 are hinged, and the middle of the clamping plate 49 forms a rotational connection with the other end of the connecting rod II 47 .

As shown in Figure 5: the described stem cutting device 5 is positioned by the sliding support 410, and the described stem cutting device 5 is made up of the second hydraulic cylinder (1, V-shaped movable knife 52 and fixed knife 53, wherein: the described The second hydraulic cylinder 51 is fixed on one end of the sliding support 410, the V-shaped movable knife 52 is fixed on the telescopic rod of the second hydraulic cylinder 51, and the fixed knife 53 is fixed on the other end of the sliding support 410 .

As shown in Figure 6: the fiber and impurity separation device 6 is positioned by the frame III 61, and the fiber extraction device includes a frame III 61, a guide groove 62, an extruding unit 63, a scraping unit 64, an impurity collection box 65 and The transmission system 66, wherein: the guide groove 62, the extruding unit 63, the scraping unit 64 and the foreign matter collection box 65 are located at the upper end of the frame III 61 from front to back.

As shown in Figure 7: described extrusion unit 63 is made of extrusion roller support 6301, square fixed bearing 6302, square sliding bearing 6303, spring 6304, screw rod 6305, nut 6306, upper extrusion roller 6307, lower extrusion roller 6308 and Gasket 6309, wherein: the lower squeeze roller 6308 is fixed on the bottom of the squeeze roller bracket (6301) through two square fixed bearings 6302; the upper squeeze roller 6307 is fixed on the lower squeeze roller through two square sliding bearings 6303. Just above the pressure roller 6308, the upper end surface of the square sliding bearing (6303) has a cylindrical groove with a depth of 1 cm, the diameter of which is the size of the outer diameter of the spring 6304, and a gasket 6309 is fixed in the middle of the screw 6305 , the thickness is 5-7mm, the outer diameter is 5-8mm larger than the outer diameter of the spring 6304, and the inner diameter is the cross-sectional diameter of the screw 6305. The end face, the nut 6306 is fixed on the upper end face of the extrusion roller bracket 6301 and screwed with the screw rod 6305.

As shown in Figure 8: the scraping unit 64 is composed of a knife roller 6401, a scraper 6402, a bearing III6403 and a concave plate 6404, wherein: the scraper 6402 is fixed on the outer peripheral surface of the knife roller 6401 by bolts; the knife roller The shafts at both ends of the 6401 are fixed on the frame III 61 through two bearings III 6403; the concave plate 6404 is set under the cutter roller 6401 and leaves a gap of 5-10 mm therewith.

As shown in Figure 9: the transmission system 66 is composed of a first pulley 6601, a second pulley 6602, a first belt 6603, a first sprocket 6604, a first chain 6605, a second sprocket 6606, a first gear 6607, The second gear 6608 and the third motor 6609 are composed, wherein: the third motor 6609 is fixed on the frame III61, the first pulley 6601 is fixed on the motor shaft of the third motor 6609, and the second pulley 6602 is fixed on one end of the cutter roller 6401 and connected with the first pulley 6601 through the first belt 6603, the first sprocket 6604 is fixed on the other end of the cutter roller 6401, and the second sprocket 6606 is fixed on the lower extrusion One end of the pressing roller 6308 is connected with the first sprocket 6604 through the first chain 6605, and the first gear 6607 and the second gear 6608 are fixed on the other end of the lower pressing roller 6308 and the upper pressing roller 6307 respectively. The first gear 6607 is engaged with the second gear 6608 .

Briefly describe the working process of the present invention below in conjunction with accompanying drawing.

As shown in the figure, the machine is equipped with three stations, namely, the stem conveying station, the stem clamping and cutting station, and the fiber preparation station. The working process is divided into six working steps:

The first step is to place the banana stalk to be processed on the conveyor belt 24 of the stalk conveying and fiber collecting device 2, start the first motor 210, and when the stalk is conveyed to the stalk clamping station, the groove wheel 27 stops rotating , and then the conveyor belt 24 is stationary;

In the second step, the telescopic rod of the first hydraulic cylinder 42 is stretched out, and the clamping plate 49 is driven upward through the gear 44, the rack 43 mechanism and the connecting rod mechanism, thereby realizing the automatic clamping of the stalk;

The third step is to start the second motor 32, the cam 33 makes a push motion, and the sliding support 48 slides along the slotted track 41 toward the fiber and impurity separation device 6, and then the stalk reaches the fiber preparation station to realize automatic feeding In-type scraping, at this time the cam 33 mechanism enters a far resting state;

In the fourth step, when the cam 33 rotates through the far angle of repose for the return movement, the sliding support 48 drives the device for clamping the stalk to move along the groove-shaped guide rail 41, and the stalk is automatically pulled back to the stalk cutting station. This moment, cam 33 mechanism enters into nearly resting state;

In the fifth step, the telescopic rod of the second hydraulic cylinder 51 is stretched out, and the V-shaped movable knife 52 is pushed to cut off the tip of the stalk, and the fiber falls on the conveyor belt 24, and the V-shaped movable knife 52 is retracted, thereby realizing the separation of the tip of the stalk and the fiber ;

In the sixth step, the sheave 27 starts to rotate, driving the conveyor belt 24 of the stalk conveying and fiber collection device 2 to rotate, and then the fibers dropped at the end of the conveyor belt 24 are sent into the fiber collection box 23, and the next batch of stalks enters again At the stalk clamping station, the sheave 27 stops rotating again, and such a reciprocating cycle can realize the fully automatic production of banana stalk fibers.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (9)

1. a full-automatic banana stalk fiber extraction machine is characterized in that: comprise frame (1), stalk is sent into and fiber collecting device (2), intermittent feeding device (3), stalk clamping device ( 4), stem cutting device (5) and fiber and impurity separation device (6); characterized in that: the stem feeding and fiber collecting device (2) is located on the left side of the frame (1), intermittently feeding The device (3) is located at the front end of the right side of the frame (1), the fiber and impurity separation device (6) is located at the rear end of the right side of the frame (1), and the stem clamping and stem cutting device (5) is located at the frame (1) The middle part of the right side. 2. a kind of full-automatic banana stalk fiber extraction machine according to claim 1, is characterized in that: described stalk is sent into and fiber collection device (2) is positioned by frame 1 (21), and described stalk Feeding and fiber collection device (2) includes first shaft (22), fiber collection box (23), conveyor belt (24), I bearing (25), second shaft (26), sheave (27), dial (28), driving rod (29), first motor (210), drum (211) and frame 1 (21), described fiber collecting box (23) is positioned at stem feeding and fiber collecting device (2) At the end, the first shaft (22) and the second shaft (26) and the cylinder (211) are respectively fixed on the frame I (21) by four I bearings (25) of the same type, and the sheave (27 ) is installed on the second shaft (26), and the dial (28) is installed on the output shaft of the first motor (210) and is connected with the sheave (27) through the driving lever (29), and the first shaft (22) is connected to the second shaft (26) by a conveyor belt (24). 3. A kind of full-automatic banana stalk fiber extraction machine according to claim 1, is characterized in that: described intermittent feeding device (3) is positioned by frame II (31), and described intermittent feeding device (3 ) includes the second motor (32), cam (33), cylindrical roller (34), follower (35), frame II (31), II bearing (36), the third shaft (37), connecting rod I (38), slider I (39) and guide block (310), the second motor (32) is fixed on the frame II (31), and the third shaft (37) passes through two identical models The II bearing (36) is fixed on the frame II (31), the follower (35) forms a rotational connection with the third shaft (37) and the cylindrical roller (34) respectively, and the cam (33) is installed On the motor shaft of the second motor (32) and connected with the follower (35) by cylindrical roller (34) high pairs, the connecting rod I (38) is respectively connected with the follower (35), slide block 1 (39) is hinged, and described slide block 1 (39) and guide block (310) form moving pair. 4. A fully automatic banana stalk fiber extraction machine according to claim 1, characterized in that: the stalk clamping device (4) is positioned by a slotted guide rail (41), and the stalk clamping Device (4) comprises first hydraulic cylinder (42), rack (43), gear (44), rocking bar I (45), rocking bar II (46), connecting rod II (47), sliding support (48 ) and clamping plate (49), the sliding support (48) is installed on the slotted guide rail (41), and the first hydraulic cylinder (42) is fixed at one end of the sliding support (48), so One end of the rack (43) is consolidated with the telescopic rod of the first hydraulic cylinder (42), and the gear (44) and the sliding support (48) are formed by a short shaft welded on the sliding support (48) Rotationally connected, the rocking rod I (45) is fixed on the end face of the gear (44), and the rocking rod II (46) and the sliding support (48) are welded on the sliding support (48) by another The short shaft forms a rotational connection, the rocking bar I (45), the rocking bar II (46) are respectively hinged with one end and the middle part of the connecting rod II (47), and the middle part of the clamping plate (49) is connected with the connecting rod II The other end of (47) forms a rotational connection. 5. A kind of fully automatic banana stalk fiber extraction machine according to claim 1, characterized in that: said stem cutting device (5) is positioned by a sliding support (410), said stem cutting device (5 ) consists of a second hydraulic cylinder (51), a V-shaped moving knife (52) and a fixed knife (53), the second hydraulic cylinder (51) is fixed at one end of the sliding support (410), and the V-shaped The movable knife (52) is fixed on the telescopic rod of the second hydraulic cylinder (51), and the fixed knife (53) is fixed on the other end of the sliding support (410). 6. A kind of automatic banana stalk fiber extraction machine according to claim 1, characterized in that: said fiber and foreign matter separation device (6) is positioned by frame III (61), said fiber and foreign matter separation device (6) including frame III (61), guide groove (62), extrusion unit (63), scraping unit (64), impurity collection box (65) and transmission system (66), described guide groove (62 ), extruding unit (63), scraping unit (64) and foreign matter collecting box (65) are located at the upper end of frame III (61) successively from front to back. 7. A kind of fully automatic banana stalk fiber extraction machine according to claim 6, characterized in that: the extrusion unit (63) is composed of extrusion roller bracket (6301), square fixed bearing (6302), square sliding Bearing (6303), spring (6304), screw rod (6305), nut (6306), upper extrusion roller (6307), lower extrusion roller (6308) and gasket (6309), the lower extrusion roller ( 6308) is fixed on the bottom of the extrusion roller bracket (6301) through two square fixed bearings (6302), and the upper extrusion roller (6307) is fixed on the bottom of the lower extrusion roller (6308) through two square sliding bearings (6303). Directly above, the upper end of the square sliding bearing (6303) has a cylindrical groove with a depth of 1 cm, the diameter of which is the outer diameter of the spring (6304), and a gasket ( 6309), the thickness of which is 5-7mm, the outer diameter is 5-8mm larger than the outer diameter of the spring (6304), and the inner diameter is the cross-sectional diameter of the screw (6305). One end of the spring (6304) is against the bottom of the cylindrical groove, and the other One end is against the lower end surface of the washer (6309), and the nut (6306) is fixed on the upper end surface of the squeeze roller support (6301) and threaded with the screw rod (6305). 8. A kind of full-automatic banana stalk fiber extraction machine according to claim 6, characterized in that: said scraping unit (64) is composed of knife roller (6401), scraper (6402), bearing III (6403) and Concave plate (6404), the scraper (6402) is fixed on the outer peripheral surface of the cutter roller (6401) by bolts, and the shafts at both ends of the cutter roller (6401) are fixed on the machine by two bearings III (6403). On the frame III (61), the concave plate (6404) is arranged under the knife roller (6401) and leaves a gap of 5-10mm therewith. 9. a kind of full-automatic banana stalk fiber extraction machine according to claim 6, is characterized in that: described transmission system (66) is made of first pulley (6601), second pulley (6602), first belt ( 6603), the first sprocket (6604), the first chain (6605), the second sprocket (6606), the first gear (6607), the second gear (6608) and the third motor (6609), the The third motor (6609) is fixed on the frame III (61), the first pulley (6601) is fixed on the motor shaft of the third motor (6609), and the second pulley (6602) is fixed on One end of the knife roller (6401) is connected with the first pulley (6601) through the first belt (6603), the first sprocket (6604) is fixed at the other end of the knife roller (6401), and the second chain The wheel (6606) is fixed on one end of the lower extrusion roller (6308) and is connected with the first sprocket (6604) through the first chain (6605), and the first gear (6607) and the second gear (6608) are fixed respectively Knotted on the other end of the lower squeeze roller (6308) and the upper squeeze roller (6307), the first gear (6607) is engaged with the second gear (6608).