CN111139534B - Improved ramie decorticating device - Google Patents
Improved ramie decorticating device Download PDFInfo
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- CN111139534B CN111139534B CN202010112891.5A CN202010112891A CN111139534B CN 111139534 B CN111139534 B CN 111139534B CN 202010112891 A CN202010112891 A CN 202010112891A CN 111139534 B CN111139534 B CN 111139534B
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- ramie
- decorticating
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
- D01B1/10—Separating vegetable fibres from stalks or leaves
- D01B1/14—Breaking or scutching, e.g. of flax; Decorticating
- D01B1/20—Breaking or scutching, e.g. of flax; Decorticating with scraping devices
Abstract
The invention discloses an improved ramie decorticating device, which comprises a rack, and a ramie clamping and conveying device and a ramie decorticating mechanism which are arranged on the rack, wherein the ramie clamping and conveying device comprises clamping and conveying chains which are matched with each other from the upper side and the lower side to clamp and convey ramie, chain wheels are meshed on the clamping and conveying chains, the ramie decorticating mechanism comprises a ramie decorticating roller and a ramie decorticating concave plate arranged on the lower side of the ramie decorticating roller, gaps of the ramie decorticating concave plate are arranged below the ramie decorticating roller, the ramie decorticating plate is circumferentially distributed on the ramie decorticating roller, a cantilever support frame is arranged on the rack above the ramie decorticating concave plate, and the ramie decorticating roller is arranged on the cantilever support frame to form a channel for the ramie to enter the ramie decorticating mechanism without barriers. According to the ramie decorticating device, the cantilever support frame is arranged, so that the ramie decorticating mechanism is suspended above the ramie conveying channel, and the phenomenon that interference occurs when ramie enters the ramie decorticating mechanism to affect the decorticating is avoided.
Description
Technical Field
The invention belongs to the technical field of ramie processing, and particularly relates to an improved ramie peeling device.
Background
The ramie is a special product in China, is called Chinese grass, and the planting area and the yield of the ramie in China currently account for more than 90 percent of the world. The ramie fiber has the characteristics of good flexibility, large fiber strength, stiff and smooth fabric, good luster, quick moisture absorption and dispersion and the like, is a typical natural plant fiber raw material, and the textile is popular with domestic and foreign consumers.
From the last 90 s to the present, small ramie decorticating machines are continuously developed in China, and the demand of partial individual farmers for ramie decorticating and processing is met. The existing small-sized ramie decorticator is mainly divided into a reverse pull type full-feed type decorticator and a full-feed type decorticator. The reverse pulling type decorticating machine mainly depends on manual pulling and splitting to sequentially decorticate the two ends, so that the labor intensity is high, the working efficiency is low, and potential safety hazards exist; the existing full-feeding type ramie decorticating machine is mainly a longitudinal feeding type ramie decorticating machine, the machine type is influenced by the length of ramie stalks and the rotating speed of a roller, the ramie decorticating efficiency is not high, and the problem that ramie tail ramie bones and green husks cannot be completely decorticated exists.
Chinese patent 201811467304.3 discloses a ramie decorticating device, which realizes automation of decorticating process and basically solves the above problems, but still has the following problems to be improved and optimized:
1. a ramie peeling roller of the ramie peeling mechanism is arranged on one side of the upper clamping conveying chain and the lower clamping conveying chain, and a supporting seat of the ramie peeling roller is easy to interfere with a ramie rod, so that ramie cannot accurately enter the ramie peeling mechanism;
2. although the ramie peeling concave plate below the ramie peeling roller can be adjusted up and down, the ramie peeling concave plate can not float in the ramie peeling process, so that the ramie peeling plate is easy to break ramie fibers;
3. the adjacent elastic pressing blocks and the concave clamping plates are not in seamless connection on the clamping and conveying chain for clamping and conveying the ramie, so that after the ramie stalks or fibers are squeezed into gaps between the elastic pressing blocks and between the concave clamping plates, the ramie stalks or fibers are directly pulled out by the ramie stripping plates due to small clamping force;
4. the upper and lower clamping conveying chains for clamping and conveying ramie are driven by two different chain wheel driving motors, so that the synchronization is difficult to ensure, and the relative motion of the upper and lower clamping conveying chains is caused;
5. the upper and lower pressing structures for the upper and lower clamping conveying chains are pressed by the chain wheels and the springs, so that the noise is high, and the pressing force of each part is difficult to adjust to be consistent.
In summary, how to further optimize the ramie holding and conveying device and the ramie peeling mechanism of the ramie peeling device has become a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide an improved ramie decorticating device, thereby solving the problems.
In order to achieve the purpose, the invention discloses an improved ramie decorticating device, which comprises a rack, and a ramie clamping and conveying device and a ramie decorticating mechanism which are arranged on the rack, wherein the ramie clamping and conveying device comprises clamping conveying chains which are matched with each other from the upper side and the lower side to clamp and convey ramie, chain wheels are meshed on the clamping conveying chains, the ramie decorticating mechanism comprises a ramie decorticating roller and a ramie decorticating concave plate which is arranged on the lower side of the ramie decorticating roller, gaps of the ramie decorticating concave plate are arranged below the ramie decorticating roller, the ramie decorticating plate is circumferentially distributed on the ramie decorticating roller, a cantilever support frame is arranged above the ramie decorticating concave plate on the rack, and the ramie decorticating roller is arranged on the cantilever support frame to form a channel for the ramie to enter the ramie decorticating mechanism without.
Furthermore, a hydraulic/pneumatic supporting cylinder capable of adjusting a gap between the hemp stripping plate and the hemp stripping concave plate is arranged on the lower side of the hemp stripping concave plate, the hydraulic/pneumatic supporting cylinder is installed on the rack, a piston rod of the hydraulic/pneumatic supporting cylinder is connected with the hemp stripping concave plate, and the hydraulic/pneumatic supporting cylinder is connected with a supporting pressure regulating valve.
Furthermore, an elastic pressing block is arranged on the clamping conveying chain on one side of the frame, a concave clamping plate capable of being meshed with the elastic pressing block is arranged on the clamping conveying chain on the other side, and the head end and the tail end of the adjacent elastic pressing block and the head end and the tail end of the adjacent concave clamping plate are meshed in a seamless mode in the conveying direction of the ramie.
Furthermore, the elastic pressing blocks are arranged on the chain links of the clamping conveying chain, one ends of the elastic pressing blocks are provided with convex blocks, the other ends of the elastic pressing blocks are provided with grooves, the grooves of the adjacent elastic pressing blocks are meshed with the convex blocks, the concave clamping plates comprise bottom plates and vertical plates arranged on two sides of the bottom plates, and the vertical plates of the adjacent concave clamping plates are arranged in a staggered mode.
Furthermore, the clamping conveying chain comprises an upper clamping conveying chain and a lower clamping conveying chain, the elastic pressing block is installed on a chain link of the upper clamping conveying chain, and the concave clamping plate is installed on a chain link of the lower clamping conveying chain.
Furthermore, the elastic pressing block is a rubber pressing block, the concave clamping plate is a hard metal clamping plate, the end part of the elastic pressing block, which is meshed with the concave clamping plate, adopts arc transition, and the upper end of the upper vertical plate of the concave clamping plate is outwards bent in an arc shape.
The clamping device is characterized by further comprising an upper clamping mechanism and a lower clamping mechanism, wherein the upper clamping mechanism comprises a clamping hydraulic/pneumatic cylinder, a U-shaped frame and a tensioning roller, a piston rod of the clamping hydraulic/pneumatic cylinder is connected with the U-shaped frame, the tensioning roller is installed on the U-shaped frame and abuts against the clamping conveying chain on one side of the frame, the lower clamping mechanism comprises a supporting plate which can be adjusted up and down, the supporting plate abuts against the clamping conveying chain on the other side of the frame, and the clamping hydraulic/pneumatic cylinder is connected with a clamping pressure regulating valve;
furthermore, be provided with in the backup pad right the link joint guide way of the link joint direction of centre gripping conveying chain, be provided with on the tensioning roller and block into the link joint direction bulge loop between the link joint of relative setting.
Further, the both ends pin joint of sprocket is on the sprocket supporting seat, the one end of sprocket supporting seat is provided with chain straining device, the sprocket supporting seat with the frame sliding connection, chain straining device is including installing chain tensioning hydraulic pressure/pneumatic cylinder in the frame, the piston rod of chain tensioning hydraulic pressure/pneumatic cylinder with sprocket supporting seat connects.
Further, arc-shaped covers are arranged on two sides of the clamping conveying chain, and wing plates extending into the arc-shaped covers are arranged on two sides of the vertical plate; and one chain wheel of the clamping conveying chains on the upper side and the lower side of the rack is connected with a chain wheel driving motor, and the clamping conveying chains on the upper side and the lower side of the rack are in friction transmission in the meshing process of the elastic pressing block and the concave clamping plate.
Compared with the prior art, the invention has the advantages that:
according to the invention, the cantilever support frame is arranged, so that the ramie peeling mechanism is suspended above the ramie conveying channel, and the condition that interference occurs when ramie enters the ramie peeling mechanism to affect ramie peeling is avoided; the hydraulic/pneumatic supporting cylinder is arranged on the lower side of the ramie peeling concave plate, so that on one hand, the online ramie peeling gap can be conveniently adjusted, and meanwhile, the constant-pressure ramie peeling between the ramie peeling plate and the ramie peeling concave plate can be ensured, and the ramie fibers are prevented from being cut off by the ramie peeling plate or the ramie is prevented from being pulled out from the clamping conveying chain or being worn by a distance; furthermore, the head and the tail ends of the elastic pressing blocks and the head and the tail ends of the adjacent concave clamping plates are in seamless engagement in the conveying direction of the ramie, so that ramie stalks or fibers are squeezed into gaps between the adjacent elastic pressing blocks or the adjacent concave clamping plates in the conveying direction of the ramie, and the problem that the ramie stalks or fibers are directly pulled out by peeling the ramie plates is solved; meanwhile, automatic control of pressing can be realized through a pressing hydraulic pressure/pneumatic cylinder, the problem that huge noise is brought by the adoption of a pressing chain wheel and a spring in the prior art is solved, and more importantly, compared with the condition that the pressing force of a plurality of pressing chain wheels is difficult to guarantee through manual adjustment of the spring, constant-pressure floating control of a tensioning roller can be realized through a pressing pressure regulating valve, so that the pressing force acting on the ramie is guaranteed to be constant; the problem that the ramie cannot enter the ramie peeling mechanism due to the fact that the ramie upwarps can be solved through the ramie guide rod.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a first axial schematic view of an improved ramie decorticating apparatus according to the preferred embodiment of the present invention;
FIG. 2 is a second axial schematic view of the improved ramie decorticating apparatus disclosed in the preferred embodiment of the present invention;
FIG. 3 is a schematic front view of an improved ramie decorticating apparatus according to the preferred embodiment of the present invention;
FIG. 4 is a schematic left side view of an improved ramie decorticating apparatus according to the preferred embodiment of the present invention;
FIG. 5 is a schematic right-side view of an improved ramie decorticating apparatus according to the preferred embodiment of the present invention;
FIG. 6 is a schematic top view of an improved ramie decorticating apparatus according to the preferred embodiment of the present invention;
FIG. 7 is a schematic structural view of a ramie holding and conveying device of an improved ramie decorticating device according to the preferred embodiment of the present invention;
fig. 8 is a schematic view showing the engagement of the upper holding conveyer chain and the lower holding conveyer chain in the ramie holding conveyer according to the preferred embodiment of the present invention.
Illustration of the drawings:
1. a frame; 2. a ramie clamping and conveying device; 3. a decorticating mechanism; 4. an upper clamping conveying chain; 5. a lower clamping conveyor chain; 6. a sprocket; 7. a decorticating roller; 8. decorticating the hemp concave plate; 9. peeling a hemp board; 10. a cantilever support frame; 11. a channel; 12. a hydraulic/pneumatic support cylinder; 13. elastic pressing blocks; 14. a concave clamping plate; 15. a bump; 16. a groove; 17. a base plate; 18. a vertical plate; 19. a chain link; 20. an upper pressing mechanism; 21. a lower pressing mechanism; 22. a compression hydraulic/pneumatic cylinder; 23. a U-shaped frame; 24. a tension roller; 25. a support plate; 26. a chain plate; 27. a chain plate guide groove; 28. a chain plate guide convex ring; 29. a chain wheel supporting seat; 30. an arc-shaped cover; 31. a wing plate; 32. a sprocket drive motor; 33. a screw rod; 34. lightening holes; 35. a decorticating roller driving motor; 36. a ramie guide rod; 37. the chain tensions the hydraulic/pneumatic cylinder.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in figures 1-8, the invention discloses an improved ramie decorticating device, which comprises a frame 1, a ramie holding and conveying device 2 and a decorticating mechanism 3 which are arranged on the frame 1, wherein the ramie holding and conveying device 2 comprises a holding and conveying chain which is matched with each other from the upper side and the lower side to hold and convey ramie, the holding and conveying chain comprises an upper holding and conveying chain 4 and a lower holding and conveying chain 5, the holding and conveying chain is respectively engaged with a chain wheel 6, one end of the ramie to be decorticated is held by the upper holding and conveying chain 4 and the lower holding and conveying chain 5, the decorticating mechanism 3 comprises a decorticating roller 7 and an arc-shaped decorticating concave plate 8 which is arranged at the lower side of the decorticating roller 7, the decorticating roller 7 and the decorticating roller driving motor 35 adopt chain transmission, the decorticating concave plate 8 is arranged under the decorticating roller 7 in a clearance way, the upper end of the decorticating concave plate is close to the position against which the upper holding and conveying chain 4 and the lower holding and conveying chain 5 abut against, and one end of the decorticating concave plate 8 extends to the position which is contacted with the upper holding and conveying chain 4 and the lower holding and conveying chain 5, the other end extends to the bottom of the ramie peeling roller 7, the ramie peeling plate 9 is circumferentially distributed on the ramie peeling roller 7, the ramie peeling plate 9 is one side of an angle steel structure, and arc angles are arranged on two sides of the ramie peeling plate 9, so that ramie can enter and output conveniently. In order to avoid the problem that a supporting seat of the ramie peeling roller 7 is easy to interfere with a ramie rod, a cantilever supporting frame 10 is arranged above the ramie peeling concave plate 8 of the frame 1, the ramie peeling roller 7 is arranged on the cantilever supporting frame 10 through the supporting seat, and because ramie can droop due to gravity, the ramie peeling roller cannot interfere with the cantilever supporting frame 10 above the ramie peeling roller, a channel 11 for the ramie to enter the ramie peeling mechanism 3 without obstacles is formed, and the smoothness of feeding is ensured.
In this embodiment, a hydraulic/pneumatic supporting cylinder 12 is provided at the lower side of the concave ramie peeling plate 8 for adjusting the gap between the concave ramie peeling plate 9 and the concave ramie peeling plate 8, the hydraulic/pneumatic supporting cylinder 12 is installed on the frame 1 and the piston rod thereof is connected with the concave ramie peeling plate 8, so that the gap between the concave ramie peeling plate 9 and the concave ramie peeling plate 8 can be automatically and steplessly adjusted by the hydraulic/pneumatic supporting cylinder 12, thereby facilitating the online real-time control of the quality of ramie fibers, and more importantly, the hydraulic/pneumatic supporting cylinder 12 is connected with a supporting pressure regulating valve, so as to ensure that the pressing force between the concave ramie peeling plate 9 and the concave ramie peeling plate 8 (when ramie is present in the middle) is constant, when the mutual acting force between the concave ramie peeling plate 9 and the concave peeling plate 8 is increased due to more ramie or hard blocks, the pressure in the hydraulic/pneumatic supporting cylinder 12 is increased, and the pressure regulating valve can be released, the concave ramie peeling plate 8 is driven to retreat, so that the ramie peeling plate 9 is prevented from cutting off ramie fibers or tearing off the ramie from a clamping conveying chain or being worn by a distance.
In this embodiment, since the gap between the ramie peeling plate 9 and the ramie peeling concave plate 8 is relatively small (thereby ensuring extrusion and ramie peeling), the frame 1 is further provided with a ramie guide rod 36, the ramie guide rod 36 is arranged on the upper side of the channel 11, one end of the ramie guide rod 36 is fixedly connected with the frame 1, and the other end of the ramie guide rod 36 is inclined downward and extends towards the upper side of the input port of the ramie peeling mechanism 3, so that when one end of the ramie clamping and conveying device 2 clamping the ramie rod moves towards the ramie peeling roller 7, the ramie rod is continuously pressed down through the ramie guide rod 36, finally the other end of the ramie rod is ensured to enter the gap between the ramie peeling plate 9 and the ramie peeling concave plate 8 to start ramie peeling operation, the danger caused by manual pressing down of part of the ramie rod is avoided, and the automation degree of ramie rod conveying is improved.
In this embodiment, the upper clamping conveyor chain 4 of the frame 1 is provided with an elastic pressing block 13, the lower clamping conveyor chain 5 on the other side is provided with a concave clamping plate 14 which can be engaged with the elastic pressing block 13, optionally, the elastic pressing block 13 can also be arranged on the lower clamping conveyor chain 5, and the concave clamping plate 14 is arranged on the upper clamping conveyor chain 4. The head and the tail ends of the adjacent elastic pressing blocks 13 and the head and the tail ends of the adjacent concave clamping plates 14 are in seamless engagement in the conveying direction of the ramie, so that the ramie stalks or fibers are squeezed into gaps between the adjacent elastic pressing blocks 13 or the adjacent concave clamping plates 14 in the conveying direction of the ramie, and the problem that the ramie stalks or fibers are directly pulled out by the ramie peeling plates 9 is solved. Specifically, the elastic pressing blocks 13 are mounted on the chain links 19 of the clamping conveying chain, that is, each chain link 19 is provided with an elastic pressing block 13 (which is convenient for direct cutting and processing and avoids the problem of high cost caused by injection molding and die sinking), one end of each elastic pressing block 13 is provided with a convex block 15, the other end of each elastic pressing block 13 is provided with a groove 16, and the grooves 16 of adjacent elastic pressing blocks 13 are meshed with the convex blocks 15, so that the gap between the adjacent elastic pressing blocks 13 is compensated by the convex blocks 15 to form a structure similar to a seamless conveying belt; the concave clamping plates 14 comprise bottom plates 17 and vertical plates 18 arranged on two sides of the bottom plates 17, the vertical plates 18 of adjacent concave clamping plates 14 are arranged in a staggered mode to form a conveying groove structure, and gaps between the adjacent vertical plates 18 are made up in a staggered mode.
In this embodiment, the elastic pressing block 13 is a rubber pressing block, the concave clamping plate 14 is a hard metal clamping plate, in order to avoid cutting the end of the ramie rod when the end of the ramie rod is pressed, the end of the elastic pressing block 13 engaged with the concave clamping plate 14 adopts an arc transition, and the upper end of the upper vertical plate 18 of the concave clamping plate 14 is bent outwards in an arc shape.
In this embodiment, in order to ensure the clamping force between the upper clamping conveying chain 4 and the lower clamping conveying chain 5 and prevent the ramie stalks from being pulled out by the ramie peeling plate 9, the frame 1 is further provided with an upper pressing mechanism 20 and a lower pressing mechanism 21, the upper pressing mechanism 20 comprises a pressing hydraulic/pneumatic cylinder 22, a U-shaped frame 23 and a tension roller 24, a piston rod of the pressing hydraulic/pneumatic cylinder 22 is connected with the U-shaped frame 23, the tension roller 24 is arranged on the U-shaped frame 23 and abuts against the upper clamping conveying chain 4 on one side of the frame 1, the lower pressing mechanism 21 comprises a support plate 25 which can be adjusted up and down, a screw rod 33 which is in threaded connection with the frame 1 is arranged below the specific support plate 25, the upper and lower positions of the supporting plate 25 are adjusted by rotating the screw rod 33, the supporting plate 25 is propped against the lower clamping conveying chain 5 at the other side of the frame 1, and the compressing hydraulic/pneumatic cylinder 22 is connected with a compressing pressure adjusting valve; similarly, on the one hand, the automatic control of the pressing can be realized by the pressing hydraulic/pneumatic cylinder 22, and at the same time, the problem of huge noise caused by the conventional use of pressing chain wheels and springs is avoided, and more importantly, compared with the case of manual adjustment by springs and difficulty in ensuring the pressing force of a plurality of pressing chain wheels, the constant-pressure floating control of the tensioning roller 24 can be realized by the pressing pressure regulating valve, so that the constant pressing force acting on the ramie can be ensured. Further, the supporting plate 25 is provided with a chain plate guide groove 27 for guiding the chain plate 26 of the upper clamping conveying chain 4, and the tensioning roller 24 is provided with a chain plate guide convex ring 28 which can be clamped between the oppositely arranged chain plates 26, so that the position where the upper clamping conveying chain 4 and the lower clamping conveying chain 5 abut against is prevented from shifting left and right.
In this embodiment, both ends of the sprocket 6 are pivotally connected to the sprocket support base 29, one end of the sprocket support base 29 is provided with a chain tensioning mechanism, the sprocket support base 29 is installed on the kidney-shaped hole of the frame 1 so as to be capable of sliding and tensioning, the chain tensioning mechanism comprises a chain tensioning hydraulic/pneumatic cylinder 37 installed on the frame 1, and a piston rod of the chain tensioning hydraulic/pneumatic cylinder 37 is connected to the sprocket support base 29, so that accurate control and automatic control are further realized.
In the embodiment, the ramie stalks and ramie fibers are prevented from contacting with a chain, a rotating shaft and the like on the clamping and conveying device to be wound in the clamping and conveying process, the arc-shaped covers 30 are arranged on two sides of the clamping and conveying chain, and the wing plates 31 extending into the arc-shaped covers 30 are arranged on two sides of the vertical plate 18, so that the gap between the vertical plate and the arc-shaped covers 30 can be blocked; a chain wheel of the clamping conveying chains on the upper side and the lower side of the rack 1 is connected with a chain wheel driving motor 32, and the clamping conveying chains on the upper side and the lower side of the rack 1 are in friction transmission in the meshing process of the elastic pressing block 13 and the concave clamping plate 14, so that on one hand, the number of the motors is reduced, and on the other hand, the synchronous motion between the upper clamping conveying chain 4 and the lower clamping conveying chain 5 is thoroughly ensured. Meanwhile, the chain wheel 6 is provided with lightening holes 34, so that driving energy consumption is further optimized and solved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An improved ramie decorticating device comprises a frame (1), a ramie clamping and conveying device (2) and a ramie decorticating mechanism (3) which are arranged on the frame (1), wherein the ramie clamping and conveying device (2) comprises a clamping conveying chain which is matched with each other from the upper side and the lower side to clamp and convey ramie, chain wheels (6) are meshed on the clamping conveying chain, the ramie decorticating mechanism (3) comprises a ramie decorticating roller (7) and a ramie decorticating concave plate (8) arranged on the lower side of the ramie decorticating roller (7), gaps of the ramie decorticating concave plate (8) are arranged below the ramie decorticating roller (7), a ramie decorticating plate (9) is circumferentially distributed on the ramie decorticating roller (7), the frame (1) is arranged above the ramie decorticating concave plate (8) and is provided with a cantilever supporting frame (10), the ramie decorticating roller (7) is arranged on the cantilever supporting frame (10) to form a channel (11) for the ramie to enter the ramie decorticating mechanism (3) without obstacles, an elastic pressing block (13) is arranged on the clamping conveying chain on one side of the rack (1), a concave clamping plate (14) capable of being meshed with the elastic pressing block (13) is arranged on the clamping conveying chain on the other side, the head end and the tail end of the adjacent elastic pressing block (13) and the head end and the tail end of the adjacent concave clamping plate (14) are meshed in a seamless mode in the conveying direction of ramie, the elastic pressing block (13) is arranged on a chain link (19) of the clamping conveying chain, a convex block (15) is arranged at one end of the elastic pressing block (13), a groove (16) is arranged at the other end of the elastic pressing block (13), the groove (16) of the adjacent elastic pressing block (13) is meshed with the convex block (15), therefore, a gap between the adjacent elastic pressing blocks (13) is compensated through the convex block (15) to form a structure similar to a seamless conveying belt, the concave clamping plate (14) comprises a bottom plate (17) and vertical plates (18) arranged on two sides of the bottom plate (17), the vertical plates (18) of the adjacent concave clamping plates (14) are arranged in a staggered mode to form a conveying groove structure, and gaps between the adjacent vertical plates (18) are made up in a staggered mode.
2. The improved ramie decorticating device according to claim 1, characterized in that the lower side of the concave decorticating plate (8) is provided with a hydraulic/pneumatic support cylinder (12) which can adjust the gap between the concave decorticating plate (9) and the concave decorticating plate (8), the hydraulic/pneumatic support cylinder (12) is mounted on the frame (1) and the piston rod of the hydraulic/pneumatic support cylinder is connected with the concave decorticating plate (8), and the hydraulic/pneumatic support cylinder (12) is connected with a support pressure regulating valve.
3. The improved ramie decorticating device according to claim 1, wherein the clamping conveyor chain comprises an upper clamping conveyor chain (4) and a lower clamping conveyor chain (5), the elastic pressing block (13) is mounted on a chain link (19) of the upper clamping conveyor chain (4), and the concave clamping plate (14) is mounted on a chain link (19) of the lower clamping conveyor chain (5).
4. The improved ramie decorticating device according to claim 1, wherein the elastic pressing block (13) is a rubber pressing block, the concave clamping plate (14) is a hard metal clamping plate, the end of the elastic pressing block (13) engaged with the concave clamping plate (14) adopts a circular arc transition, and the upper end of the upper vertical plate (18) of the concave clamping plate (14) is outwards bent in a circular arc shape.
5. The improved ramie decorticating device of any one of claims 1-2, further comprising an upper hold-down mechanism (20) and a lower hold-down mechanism (21), wherein the upper hold-down mechanism (20) comprises a hold-down hydraulic/pneumatic cylinder (22), a U-shaped frame (23) and a tension roller (24), the piston rod of the hold-down hydraulic/pneumatic cylinder (22) is connected to the U-shaped frame (23), the tension roller (24) is mounted on the U-shaped frame (23) and abuts against the holding conveyor chain on one side of the frame (1), the lower hold-down mechanism (21) comprises a support plate (25) which can be adjusted up and down, the support plate (25) abuts against the holding conveyor chain on the other side of the frame (1), and a hold-down pressure regulating valve (22) is connected to the hold-down hydraulic/pneumatic cylinder.
6. An improved ramie decorticating device according to claim 5, characterized in that the support plate (25) is provided with link guide grooves (27) for guiding the links (26) of the holding conveyor chain, and the tensioning roller (24) is provided with link guide collars (28) which can be snapped between the oppositely disposed links (26).
7. An improved ramie decorticating device according to any one of claims 1-2, characterized in that the two ends of the chain wheel (6) are pivotally connected to a chain wheel support (29), one end of the chain wheel support (29) is provided with a chain tensioning mechanism, the chain wheel support (29) is slidably connected to the frame (1), the chain tensioning mechanism comprises a chain tensioning hydraulic/pneumatic cylinder (37) mounted on the frame (1), and the piston rod of the chain tensioning hydraulic/pneumatic cylinder (37) is connected to the chain wheel support (29).
8. The improved ramie decorticating device according to claim 1, wherein two sides of the clamping and conveying chain are provided with arc-shaped covers (30), and two sides of the vertical plate (18) are fixedly connected with wing plates (31) extending into the arc-shaped covers (30); and one chain wheel (6) of the clamping conveying chains on the upper side and the lower side of the rack (1) is connected with a chain wheel driving motor (32), and the clamping conveying chains on the upper side and the lower side of the rack (1) are in friction transmission in the meshing process of the elastic pressing block (13) and the concave clamping plate (14).
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| CN111139534B true CN111139534B (en) | 2021-08-20 |
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