CN111218722B - A centre gripping conveying mechanism for two-way decorticating of ramie - Google Patents
A centre gripping conveying mechanism for two-way decorticating of ramie Download PDFInfo
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- CN111218722B CN111218722B CN202010112856.3A CN202010112856A CN111218722B CN 111218722 B CN111218722 B CN 111218722B CN 202010112856 A CN202010112856 A CN 202010112856A CN 111218722 B CN111218722 B CN 111218722B
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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
- D01B1/30—Details of machines
- D01B1/34—Devices holding fibres or fibre-bearing materials during treatment
- D01B1/36—Conveying devices, e.g. moving bands or ropes
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Abstract
The invention discloses a clamping and conveying mechanism for bidirectional ramie peeling, which comprises a front ramie clamping and conveying device and a rear ramie clamping and conveying device, wherein the front ramie clamping and conveying device comprises front clamping conveying chains which are oppositely arranged for clamping and conveying ramie, the rear ramie clamping and conveying device comprises rear clamping conveying chains which are oppositely arranged for clamping and conveying ramie, the output end of each front clamping conveying chain extends towards the output end of each rear clamping conveying chain, and the output end of each front ramie peeling concave plate is provided with a ramie transition mechanism for enabling ramie fibers after ramie peeling to be transited towards the rear clamping conveying chains. According to the invention, through the two ramie clamping and conveying devices which are arranged in a staggered manner from front to back in parallel, before ramie on one side of the ramie is stripped on the front ramie clamping and conveying device and is not output, the back ramie clamping and conveying device can clamp ramie fibers of the ramie, so that the ramie stripping on the other side (including the clamping position of the ramie) of the ramie is conveniently finished, and the bidirectional ramie stripping of ramie stalks is conveniently realized.
Description
Technical Field
The invention belongs to the technical field of ramie processing, and particularly relates to a clamping and conveying mechanism for bidirectional ramie peeling.
Background
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. the ramie peeling mechanism can only realize unidirectional ramie peeling, namely, the ramie on two sides clamped by the upper and lower clamping conveying chains cannot be peeled by the ramie peeling plate. Therefore, either workers are required to manually decorticate, and the overall decorticating efficiency is reduced; or the clamping section is directly cut off, so that the ramie peeling efficiency is reduced, and the utilization rate of ramie is reduced, thereby causing waste;
2. 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;
3. 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;
4. 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;
5. an upper clamping conveying chain and a lower clamping conveying chain 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 clamping conveying chain and the lower clamping conveying chain is caused;
6. 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 machine 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 a clamping and conveying mechanism for bidirectional ramie peeling, so that the problems are solved.
In order to achieve the purpose, the invention discloses a clamping and conveying mechanism for bidirectional ramie peeling, which comprises a rack, and a front ramie clamping and conveying device and a rear ramie clamping and conveying device which are arranged on the rack, wherein the front ramie clamping and conveying device comprises front clamping conveying chains which are arranged up and down oppositely and used for clamping and conveying ramie, the rear ramie clamping and conveying device comprises rear clamping conveying chains which are arranged up and down oppositely and used for clamping and conveying ramie, the output end of each front clamping conveying chain and the input end of each rear clamping conveying chain are arranged in a staggered manner, and a ramie transition mechanism for transferring ramie fibers peeled on the front clamping conveying chains to the rear clamping conveying chains is arranged between the output end of each front clamping conveying chain and the input end of each rear clamping conveying chain.
Furthermore, ramie transition mechanism includes many transition rods, the one end of transition rod with the output of preceding centre gripping conveying chain is connected, and the other end to the input of back centre gripping conveying chain extends.
Furthermore, a rear ramie output protective cover for supporting ramie fibers is arranged on one side of the rear clamping conveying chain, the upper side of the rear ramie output protective cover is positioned on the lower side of the clamping position of the rear clamping conveying chain, one end of the transition rod is connected with the output end of the front ramie stripping concave plate, and the other end of the transition rod is connected with the rear ramie output protective cover.
And the fan is arranged on the rack, an air outlet of the fan faces the transition rod, and the fan supplies air from one side of the front clamping conveying chain to one side of the rear clamping conveying chain.
Furthermore, an elastic lug is installed on the front clamping conveying chain, a concave clamping plate capable of being meshed with the elastic lug is installed on the front clamping conveying chain on the other side, the elastic lug is installed on the rear clamping conveying chain on one side of the rear ramie peeling device, a concave clamping plate capable of being meshed with the elastic lug is installed on the rear clamping conveying chain on the other side, and the head end and the tail end of the adjacent elastic lug and the head end and the tail end of the adjacent concave clamping plate are all meshed in a seamless mode in the conveying direction of ramie.
Furthermore, the elastic lugs are arranged on the chain links of the clamping conveying chain and the rear clamping conveying chain, one end of each elastic lug is provided with a lug, the other end of each elastic lug is provided with a groove, the grooves adjacent to the elastic lugs are meshed with the lugs, the concave clamping plates comprise bottom plates and vertical plates arranged on two sides of the bottom plates, and the vertical plates adjacent to the concave clamping plates are arranged in a staggered mode.
Further, the elastic lug is arranged on the chain links of the front clamping conveying chain on the upper side and the rear clamping conveying chain on the upper side, and the concave clamping plate is arranged on the chain links of the front clamping conveying chain on the lower side and the rear clamping conveying chain on the lower side.
Furthermore, the elastic lug is a rubber pressing block, the concave clamping plate is a hard metal clamping plate, the end part of the elastic lug, 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 tensioning mechanism and a lower tensioning mechanism, wherein the upper tensioning mechanism comprises a pressing hydraulic/pneumatic cylinder, a U-shaped frame and a tensioning roller, a piston rod of the pressing 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 tensioning 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 pressing hydraulic/pneumatic cylinder is connected with a pressing 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.
Compared with the prior art, the invention has the advantages that:
according to the clamping and conveying mechanism for bidirectional ramie peeling, the two ramie clamping and conveying devices are arranged in a staggered manner in the front and back directions, and before ramie is peeled on one side of the front ramie clamping and conveying device and is output, the rear ramie clamping and conveying device can clamp ramie fibers of the ramie, so that the ramie peeling on the other side (including the clamping position of the ramie) of the ramie is finished conveniently, the bidirectional ramie peeling of ramie stalks is realized conveniently, the utilization rate of the ramie stalks is improved, and the ramie peeling efficiency of the ramie fibers guided from the ramie stalks is also improved.
Then, 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, 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 schematic front view of a bidirectional ramie decorticator equipped with a clamping and conveying mechanism according to a preferred embodiment of the present invention;
FIG. 2 is a schematic top view of a bidirectional ramie decorticator equipped with a clamping and conveying mechanism according to a preferred embodiment of the present invention;
FIG. 3 is an axial schematic view of the clamp delivery mechanism disclosed in the preferred embodiment of the present invention;
FIG. 4 is a first axial schematic view of a front decorticating device of a bidirectional ramie decorticating machine with a clamping and conveying mechanism according to the preferred embodiment of the present invention;
FIG. 5 is a second axial view of the front decorticating device of the bidirectional ramie decorticating machine with a clamping and conveying mechanism according to the preferred embodiment of the present invention;
FIG. 6 is a schematic front view of a front ramie decorticating device of the bidirectional ramie decorticating machine with a clamping and conveying mechanism according to the preferred embodiment of the present invention;
FIG. 7 is a schematic rear view of the front ramie decorticating device of the bidirectional ramie decorticating machine equipped with the holding and conveying mechanism according to the preferred embodiment of the present invention;
FIG. 8 is a schematic left side view of a front ramie decorticating device of the bidirectional ramie decorticating machine with a clamping and conveying mechanism according to the preferred embodiment of the present invention;
FIG. 9 is a schematic top view (90 degrees counterclockwise) of the front decorticating device of the bidirectional ramie decorticating machine with a clamping and conveying mechanism according to the preferred embodiment of the present invention;
FIG. 10 is a schematic structural view of a ramie holding and conveying mechanism of the bidirectional ramie decorticator according to the preferred embodiment of the present invention;
fig. 11 is a schematic view showing the engagement of the upper holding conveyer chain and the lower holding conveyer chain in the ramie holding conveyer mechanism according to the preferred embodiment of the present invention.
Illustration of the drawings:
1. a frame;
2. a front decorticating device;
21. a front ramie clamping and conveying device; 210. a front clamping conveyor chain; 211. an upper clamping conveying chain; 212. a lower clamping conveyor chain; 213. a sprocket; 214. an upper tensioning mechanism; 215. a lower tensioning mechanism; 216. a compression hydraulic/pneumatic cylinder; 217. a U-shaped frame; 218. a tension roller; 219. a chain link; 220. a screw rod; 221. chain tensioning hydraulic/pneumatic cylinders; 222. a ramie guide rod; 226. a chain plate; 227. a chain plate guide groove; 228. a chain plate guide convex ring; 229. a chain wheel supporting seat; 230. a chain tensioning mechanism; 231. a wing plate; 232. a sprocket drive motor; 233. a support plate; 25. a front decorticating mechanism; 251. a front decorticating roller; 252. front decorticating the concave plate; 253. peeling a hemp board; 254. a cantilever support frame; 255. a channel; 256. an automatic telescopic member; 257. an elastic bump; 258. a concave clamping plate; 259. a bump; 260. a groove; 261. a base plate; 262. a vertical plate; 263. lightening holes; 264. a decorticating roller driving motor;
23. a front flax-emergence protective cover;
24. a feed conveyor belt;
3. a post-decorticating device;
31. a post ramie holding and conveying device; 310. a rear clamping conveyor chain;
35. a post-decorticating mechanism; 351. a back decorticating roller; 352. peeling the hemp concave plate;
33. then a ramie shield is produced;
34. a discharge conveyer belt;
4. a ramie transition mechanism; 41. a transition rod;
5. a fan.
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 fig. 1-3, the present invention discloses a holding and conveying mechanism for bidirectional ramie decorticating, wherein the holding and conveying mechanism is disposed on a bidirectional ramie decorticating machine, the bidirectional ramie decorticating machine comprises a frame 1, a front ramie decorticating device 2 and a rear ramie decorticating device 3 mounted on the frame 1, the input end of the front ramie decorticating device 2 is provided with a feeding conveyer belt 24, the output end of the rear ramie decorticating device 3 is provided with a discharging conveyer belt 34, the front ramie holding and conveying device 2 comprises a front ramie holding and conveying device 21 and a front ramie decorticating device 25, the front ramie holding and conveying device 21 comprises front holding and conveying chains 210 disposed oppositely up and down for holding and conveying ramie, the front ramie decorticating device 25 comprises a front ramie drum 251 and a front ramie decorticating concave plate 252 disposed below the front ramie drum 251 in the gap, the rear ramie holding and conveying device 3 comprises a rear ramie holding and rear ramie gripping and conveying device 35, the rear ramie holding and conveying device 31 comprises a rear holding and conveying chain 310 disposed oppositely, the rear ramie peeling mechanism 35 comprises a rear ramie peeling roller 351 and a rear ramie peeling concave 352 arranged at the lower side of the rear ramie peeling roller 351 with a gap, the output end of the front clamping conveying chain 210 extends towards the input end of the rear clamping conveying chain 310 so as to form a parallel and staggered position relation, when ramie is not output from the output end of the front clamping conveying chain 210, ramie fibers subjected to ramie peeling treatment can enter the rear clamping conveying chain 310 to be clamped, the rear clamping conveying chain 310 and the front ramie peeling mechanism 25 are both arranged at the same side of the front clamping conveying chain 210, the output end of the front ramie peeling concave 252 is provided with a ramie transition mechanism 4 for transitioning the ramie fibers subjected to ramie peeling towards the rear clamping conveying chain 310, the ramie transition mechanism 4 is provided with a transition surface, the front ramie peeling device 2 and the rear ramie peeling device 3 are basically the same, specifically, the front ramie clamping conveying device 21 and the rear ramie clamping conveying device 31, the front ramie peeling mechanism 25 and the rear ramie peeling mechanism 35 are basically the same, only the front ramie holding and conveying device 21 and the rear ramie holding and conveying device 31 are positioned on two sides which are arranged in parallel, and the front ramie peeling mechanism 25 and the rear ramie peeling mechanism 35 are also arranged on two sides of the frame 1, so that bidirectional ramie peeling of ramie is realized, and direct drooping of ramie fibers and winding of the rear holding and conveying chain 310 are avoided through the supporting and spreading functions of the ramie transition mechanism 4.
In this embodiment, specifically, the ramie transition mechanism 4 includes a plurality of transition rods 41 arranged in sequence from bottom to top, one end of the transition rod 41 is connected to the output end of the front ramie peeling concave plate 252, and the other end extends toward the input end of the rear holding conveyor chain 310, so that ramie fibers peeled off can smoothly transition from the transition rod 41 to the rear holding conveyor chain 310.
In this embodiment, one side of the back clamping conveying chain 310 located at the lower side is provided with a back ramie-discharging protective cover 33 for isolating or supporting ramie fibers, the upper side of the back ramie-discharging protective cover 33 is located at the lower side of the conveying surface of the back clamping conveying chain 310, one end of the transition rod 41 is connected, the other end of the transition rod is connected with the back ramie-discharging protective cover 33, and when subsequently peeling ramie on the back ramie-peeling device 3 to the clamping section of the front ramie-peeling device 2, the completed ramie-peeling fibers can be isolated through the back ramie-discharging protective cover 33, thereby preventing winding.
In order to ensure that the ramie fibers after the ramie peeling of the front ramie peeling device 2 is completed can be better transited to the transition rod 41 and prevented from being blocked, the front ramie peeling device 2 is further provided with the fan 5, the air outlet of the fan 5 is arranged towards the transition rod 41, concretely, the blowing direction of the fan 5 is one side of the front clamping conveying chain 210 and the other side of the rear clamping conveying chain 310, the ramie fibers can be blown to the horizontal as far as possible through the fan 5, and in the transition, on the other hand, the attached green husks and the like on the ramie fibers can be blown off.
Specifically, in the embodiment, as shown in fig. 4-11, the front holding conveyor chain 210 includes an upper holding conveyor chain 211 and a lower holding conveyor chain 212, each holding conveyor chain is engaged with a sprocket 213, one end of ramie to be decorticated is held by the upper holding conveyor chain 211 and the lower holding conveyor chain 212, the front decorticating mechanism 25 includes a front decorticating roller 251 and an arc-shaped front decorticating concave 252 disposed at the lower side of the front decorticating roller 251, the front decorticating roller 251 and the decorticating roller driving motor 264 adopt chain transmission, the front decorticating concave 252 is disposed at the lower side of the front decorticating roller 251 with a gap, the upper end of the front decorticating concave is close to the position where the upper holding conveyor chain 211 and the lower holding conveyor chain 212 abut against each other, one end of the front decorticating concave 252 extends to the position where the upper holding conveyor chain 211 and the lower holding conveyor chain 212 contact each other, the other end extends to the bottom of the front decorticating roller 251, a decortica, the ramie peeling plate 253 is one side of an angle steel structure, and both sides of the ramie peeling plate 253 are provided with arc angles, so that ramie can enter and output conveniently. In order to avoid the problem that the supporting seat of the front ramie peeling roller 251 is easily interfered with a ramie rod, a cantilever supporting frame 254 is arranged above the front ramie peeling concave plate 252 of the rack 1, the front ramie peeling roller 251 is arranged on the cantilever supporting frame 254 through the supporting seat, and because ramie can droop due to gravity and cannot interfere with the cantilever supporting frame 254 above, a channel 255 for the ramie to enter the front ramie peeling mechanism 25 without obstacles is formed, and smooth feeding is ensured.
In this embodiment, an automatic expansion member 256 for adjusting a gap between the concave front ramie peeling plate 253 and the concave front ramie peeling plate 252 is disposed on the lower side of the concave front ramie peeling plate 252, the automatic expansion member is a hydraulic/pneumatic support cylinder, the hydraulic/pneumatic support cylinder is mounted on the frame 1, and a piston rod of the hydraulic/pneumatic support cylinder is connected to the concave front ramie peeling plate 252, so that the gap between the concave front ramie peeling plate 253 and the concave front ramie peeling plate 252 can be automatically and steplessly adjusted by the hydraulic/pneumatic support cylinder, thereby facilitating online real-time control of the quality of ramie fibers, and more importantly, the hydraulic/pneumatic support cylinder is connected to a support pressure regulating valve, so as to ensure that the pressing force between the concave front ramie peeling plate 253 and the concave front ramie peeling plate 252 (when ramie is present in the middle) is constant, and when the mutual acting force between the concave front ramie peeling plate 253 and the concave front ramie peeling plate 252 is increased due to more ramie or hard lumps and the like, the, at this time, the pressure can be released by supporting the pressure regulating valve, and the front ramie peeling concave plate 252 can be driven to retreat, so that the ramie peeling plate 253 is prevented from cutting off ramie fibers or tearing off ramie from the clamping conveying chain or being worn by a distance.
In this embodiment, since the gap between the ramie peeling plate 253 and the front ramie peeling concave plate 252 is relatively small (thereby ensuring extrusion and peeling), the frame 1 is further provided with a ramie guide rod 222, the ramie guide rod 222 is disposed on the upper side of the passage 255, one end of the ramie guide rod 222 is fixedly connected to the frame 1, and the other end of the ramie guide rod 222 is inclined downward and extends toward the upper side of the input port of the front ramie peeling mechanism 25, so that when one end of the ramie clamping and conveying device 21 clamping the ramie rod moves toward the front ramie peeling roller 251, the ramie guide rod 222 continuously presses down the ramie rod, and finally the other end of the ramie rod is ensured to enter the gap between the ramie peeling plate 253 and the front ramie peeling concave plate 252 to start a ramie peeling operation, thereby avoiding a danger caused by manual pressing down when part of the ramie rod is lifted up, and improving the automation degree of conveying of the ramie rod.
In this embodiment, the upper clamping conveyor chain 211 of the frame 1 is provided with a resilient projection 257, the lower clamping conveyor chain 212 on the other side is provided with a concave catch plate 258 which can be engaged with the resilient projection 257, and optionally, the resilient projection 257 can be provided on the lower clamping conveyor chain 212, and the concave catch plate 258 is provided on the upper clamping conveyor chain 211. The head and the tail ends of the adjacent elastic lugs 257 and the head and the tail ends of the adjacent concave snap-gauge 258 are in seamless engagement in the conveying direction of the ramie, so that ramie stalks or fibers are squeezed into gaps between the elastic lugs 257 of the adjacent elastic lugs 257 or the adjacent concave snap-gauge 258 in the conveying direction of the ramie, and the problem that the ramie stalks or the fibers are directly pulled out by the ramie stripping plate 253 is solved. Specifically, the elastic protrusions 257 are mounted on the links 219 for clamping the conveying chain, that is, each link 219 is mounted with an elastic protrusion 257 (which is convenient for direct cutting and processing and avoids the problem of high cost caused by mold opening during injection molding), one end of the elastic protrusion 257 is provided with a protrusion 259, the other end of the elastic protrusion 257 is provided with a groove 260, and the grooves 260 of adjacent elastic protrusions 257 are engaged with the protrusion 259, so that the gap between adjacent elastic protrusions 257 is compensated by the protrusion 259, and a structure similar to a seamless conveying belt is formed; the concave clamping plates 258 comprise bottom plates 261 and vertical plates 262 arranged on two sides of the bottom plates 261, the vertical plates 262 of adjacent concave clamping plates 258 are mutually staggered to form a conveying groove structure, and gaps between the adjacent vertical plates 262 are made up in a staggered mode.
In this embodiment, the elastic protrusion 257 is a rubber press block, and the concave catch plate 258 is a hard metal catch plate, so as to avoid cutting the end of the ramie rod when the end of the ramie rod is pressed, the end of the elastic protrusion 257 engaged with the concave catch plate 258 adopts an arc transition, and the upper end of the upper vertical plate 262 of the concave catch plate 258 is bent outwards in an arc shape.
In this embodiment, in order to ensure the clamping force between the upper clamping conveying chain 211 and the lower clamping conveying chain 212 and prevent the juma rod from being pulled out by the hemp stripping plate 253, the frame 1 is further provided with an upper tensioning mechanism 214 and a lower tensioning mechanism 215, the upper tensioning mechanism 214 comprises a pressing hydraulic/pneumatic cylinder 216, a U-shaped frame 217 and a tensioning roller 218, a piston rod of the pressing hydraulic/pneumatic cylinder 216 is connected with the U-shaped frame 217, the tensioning roller 218 is installed on the U-shaped frame 217 and abuts against the upper clamping conveying chain 211 on one side of the frame 1, the lower tensioning mechanism 215 comprises a support plate 233 which can be adjusted up and down, a screw 220 which is in threaded connection with the frame 1 is arranged below the specific support plate 233, the upper and lower positions of the supporting plate 233 are adjusted by rotating the screw rod 220, the supporting plate 233 abuts against the lower clamping conveying chain 212 on the other side of the frame 1, and the compressing hydraulic/pneumatic cylinder 216 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 216, and the problem of huge noise caused by the conventional pressing chain wheels and springs is also avoided, and more importantly, compared with the situation that the pressing force of a plurality of pressing chain wheels is difficult to guarantee by manually adjusting the pressing force by the springs, the constant-pressure floating control of the tensioning roller 218 can be realized by the pressing pressure regulating valve, so that the constant pressing force acting on the ramie can be guaranteed. Further, the support plate 233 is provided with link guide grooves 227 for guiding the link plates 226 of the front clamp conveying chain 210, and the tension roller 218 is provided with link guide convex rings 228 capable of being clamped between the link plates 226 arranged oppositely, so that the abutting positions of the upper clamp conveying chain 211 and the lower clamp conveying chain 212 are prevented from shifting left and right.
In this embodiment, both ends of the chain wheel 213 are pivotally connected to the chain wheel support 229, one end of the chain wheel support 229 is provided with the chain tensioning mechanism 230, the chain wheel support 229 is installed on the kidney-shaped hole on the frame 1 so as to be capable of sliding and tensioning, the chain tensioning mechanism 230 comprises a chain tensioning hydraulic/pneumatic cylinder 221 installed on the frame 1, and a piston rod of the chain tensioning hydraulic/pneumatic cylinder 221 is connected to the chain wheel support 229, so as to further realize precise control and automatic control.
In the embodiment, the ramie stalks and ramie fibers are prevented from contacting with the chain, the rotating shaft and the like on the clamping and conveying device to be wound in the clamping and conveying process, the front ramie emergence protective cover 23 is arranged on one side of the clamping and conveying chain, which is far away from the front ramie peeling mechanism 25, and the wing plates 231 extending in the front ramie protective cover 23 are arranged on two sides of the vertical plate 262, so that the gap between the front ramie stalks and the ramie fibers and the front ramie protective cover 23 can be blocked; one 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 232, 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 lug 257 and the concave clamping plate 258, 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 211 and the lower clamping conveying chain 212 is thoroughly ensured. Meanwhile, the chain wheel 213 is provided with a lightening hole 263, so that the 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 (4)
1. A clamping and conveying mechanism for bidirectional ramie peeling is characterized by comprising a rack (1), a front ramie clamping and conveying device (21) and a rear ramie clamping and conveying device (31) which are installed on the rack (1), wherein the front ramie clamping and conveying device (21) comprises a front clamping and conveying chain (210) which is arranged up and down oppositely and used for clamping and conveying ramie, the rear ramie clamping and conveying device (31) comprises a rear clamping and conveying chain (310) which is arranged up and down oppositely and used for clamping and conveying ramie, the output end of the front clamping and conveying chain (210) and the input end of the rear clamping and conveying chain (310) are arranged in a staggered manner, a ramie transition mechanism (4) for transferring ramie fibers peeled on the front clamping and conveying chain (210) to the rear clamping and conveying chain (310) is arranged between the output end of the front clamping and conveying chain (210) and the input end of the rear clamping and conveying chain (310), the ramie transition mechanism (4) comprises a plurality of transition rods (41), one end of each transition rod (41) is connected with the output end of a front ramie peeling concave plate (252) of a front ramie peeling device (2), the other end of each transition rod extends towards the input end of a rear clamping conveying chain (310), an elastic lug (257) is arranged on each front clamping conveying chain (210), a concave clamping plate (258) capable of being meshed with the elastic lug (257) is arranged on each front clamping conveying chain (210) on the other side of the front ramie peeling device, the elastic lug (257) is arranged on each rear clamping conveying chain (310) on one side of the rear ramie peeling device (3), a concave clamping plate (258) capable of being meshed with the elastic lug (257) is arranged on each rear clamping conveying chain (310) on the other side of the rear ramie peeling device, the head end and the tail end of each adjacent elastic lug (257) and the head end and the tail end of each concave clamping plate (258) are all seamlessly, the elastic lug (257) is arranged on a chain link (219) of the front clamping conveying chain (210) and the rear clamping conveying chain (310), one end of the elastic lug (257) is provided with a lug (259), the other end of the elastic lug is provided with a groove (260), the groove (260) of the adjacent elastic lug (257) is kept meshed with the lug (259), the concave clamping plate (258) comprises a bottom plate (261) and vertical plates (262) arranged on two sides of the bottom plate (261), the vertical plates (262) of the adjacent concave clamping plate (258) are mutually staggered, the elastic lug (257) is a rubber pressing block, the concave clamping plate (258) is a hard metal clamping plate, the end part where the elastic lug (257) is meshed with the concave clamping plate (258) adopts circular arc transition, the upper end of the upper vertical plate (262) of the concave clamping plate (258) is outwards bent in a circular arc shape, and the upper tensioning mechanism (214) and the lower tensioning mechanism (215) are further included, the upper tensioning mechanism (214) comprises a pressing hydraulic/pneumatic cylinder (216), a U-shaped frame (217) and a tensioning roller (218), the piston rod of the pressing hydraulic/pneumatic cylinder (216) is connected with the U-shaped frame (217), the tensioning rollers (218) are mounted on the U-shaped frame (217) and abut against the front clamping conveying chain (210) and the rear clamping conveying chain (310) on the upper side, the lower tensioning mechanism (215) comprises a support plate (233) which can be adjusted up and down, the supporting plate (233) is abutted against the front clamping conveying chain (210) and the rear clamping conveying chain (310) on the lower side, the pressing hydraulic/pneumatic cylinder (216) is connected with a pressing pressure regulating valve, the support plate (233) is provided with a chain plate guide groove (227) for guiding a chain plate (226) of the clamping conveying chain, the tension roller (218) is provided with a chain plate guide convex ring (228) which can be clamped between the opposite chain plates (226).
2. The clamping and conveying mechanism for bidirectional ramie peeling according to claim 1, wherein a rear ramie emergence shield (33) for supporting ramie fibers is arranged on one side of the rear clamping and conveying chain (310), the upper side of the rear ramie emergence shield (33) is located on the lower side of the clamping position of the rear clamping and conveying chain (310), one end of the transition rod (41) is connected with the output end of the front ramie peeling concave plate (252), and the other end of the transition rod is connected with the rear ramie emergence shield (33).
3. The clamping and conveying mechanism for ramie bidirectional decorticating according to claim 2, further comprising a fan (5) mounted on the frame (1), wherein the air outlet of the fan (5) faces the transition bar (41), and the fan (5) blows air from one side of the front clamping and conveying chain (210) to one side of the rear clamping and conveying chain (310).
4. The clamping and conveying mechanism for ramie bidirectional decorticating according to claim 1, wherein the elastic protrusions (257) are mounted on the links (219) of the front clamping and conveying chain (210) on the upper side and the rear clamping and conveying chain (310) on the upper side, and the concave catch plates (258) are mounted on the links (219) of the front clamping and conveying chain (210) on the lower side and the rear clamping and conveying chain (310) on the lower side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010112856.3A CN111218722B (en) | 2020-02-24 | 2020-02-24 | A centre gripping conveying mechanism for two-way decorticating of ramie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010112856.3A CN111218722B (en) | 2020-02-24 | 2020-02-24 | A centre gripping conveying mechanism for two-way decorticating of ramie |
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| Publication Number | Publication Date |
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| CN111218722A CN111218722A (en) | 2020-06-02 |
| CN111218722B true CN111218722B (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010112856.3A Active CN111218722B (en) | 2020-02-24 | 2020-02-24 | A centre gripping conveying mechanism for two-way decorticating of ramie |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115261997A (en) * | 2022-07-22 | 2022-11-01 | 中国农业科学院麻类研究所 | Bidirectional mechanical reverse-pulling type decorticator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB535060A (en) * | 1938-10-03 | 1941-03-27 | Kurt Frische | An improved machine for the removal of the woody matter from the stems of plants, more particularly from rough flax |
| FR2629477B1 (en) * | 1988-03-30 | 1991-09-13 | Robaeys Freres Sa Van | METHOD AND DEVICE FOR DRAWING A TABLECLOTH TO REDUCE ITS LINEAR DENSITY |
| CN201627003U (en) * | 2010-03-02 | 2010-11-10 | 湖南华升洞庭麻业有限公司 | Full-automatic flax breaker |
| CN109338478A (en) * | 2018-12-03 | 2019-02-15 | 中国农业科学院麻类研究所 | A kind of numb device of ramie stripping |
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2020
- 2020-02-24 CN CN202010112856.3A patent/CN111218722B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB535060A (en) * | 1938-10-03 | 1941-03-27 | Kurt Frische | An improved machine for the removal of the woody matter from the stems of plants, more particularly from rough flax |
| FR2629477B1 (en) * | 1988-03-30 | 1991-09-13 | Robaeys Freres Sa Van | METHOD AND DEVICE FOR DRAWING A TABLECLOTH TO REDUCE ITS LINEAR DENSITY |
| CN201627003U (en) * | 2010-03-02 | 2010-11-10 | 湖南华升洞庭麻业有限公司 | Full-automatic flax breaker |
| CN109338478A (en) * | 2018-12-03 | 2019-02-15 | 中国农业科学院麻类研究所 | A kind of numb device of ramie stripping |
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| CN111218722A (en) | 2020-06-02 |
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