CN105520161A - Red date pitting machine for walnut-containing dates - Google Patents

Red date pitting machine for walnut-containing dates Download PDF

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Publication number
CN105520161A
CN105520161A CN201610033472.6A CN201610033472A CN105520161A CN 105520161 A CN105520161 A CN 105520161A CN 201610033472 A CN201610033472 A CN 201610033472A CN 105520161 A CN105520161 A CN 105520161A
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CN
China
Prior art keywords
jujube
drive rod
clamping
tool
stoning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610033472.6A
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Chinese (zh)
Inventor
高忠东
胡晓军
李群
许光映
王振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Research Institute of Agro Products Processing of Shanxi Academy of Agricultural Sciences
Original Assignee
Research Institute of Agro Products Processing of Shanxi Academy of Agricultural Sciences
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Research Institute of Agro Products Processing of Shanxi Academy of Agricultural Sciences filed Critical Research Institute of Agro Products Processing of Shanxi Academy of Agricultural Sciences
Priority to CN201610033472.6A priority Critical patent/CN105520161A/en
Publication of CN105520161A publication Critical patent/CN105520161A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23NMACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N4/00Machines for stoning fruit or removing seed-containing sections from fruit, characterised by their stoning or removing device
    • A23N4/02Machines for stoning fruit or removing seed-containing sections from fruit, characterised by their stoning or removing device for stoning fruit
    • A23N4/08Machines for stoning fruit or removing seed-containing sections from fruit, characterised by their stoning or removing device for stoning fruit for dates, olives or the like oblong fruits

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The invention discloses a red date pitting machine for walnut-containing dates. The red date pitting machine comprises a frame, a platform, a driving shaft, a pedal crankshaft, a pedal plate, a driving rod crankshaft, a driving rod, a universal joint, a driving rod guide tube, a pitting tube, a pit-ejecting rod, a pit-ejecting rod fixing piece, a date clamping tool, a pit falling hole, a tightening component, a driving rod guide tube fixing hole, date clamping tool heads, date clamping tool handles, a fixing button, date clamping rods, pitting tube semicircular through holes, a compression spring, fixing holes, fixing rings, springs, an elastic sheet, a slot and a blade. According to the red date pitting machine, a principle of converting circular rotation of the crankshaft into upward-downward vertical motion is adopted, the continuous operation of putting dates to be pitted into the date clamping tool, driving the pits downwards, taking the date clamping tool out, discharging the pits and putting the dates to be pitted into the date clamping tool is designed in sequence during one rotation cycle of the pedal crankshaft, and the four continuous procedures are connected tightly; moreover, certain operation time is reserved among the four procedures, and simple repeated operation is performed by dual hands and dual feet.

Description

The jujube pitter of jujube folder walnut
Technical field
The present invention relates to jujube pitter, particularly a kind of jujube pitter for making jujube folder walnut.
Background technology
Red date has long cultivation history in China.According to the study, a large amount of protein, fat, cellulose, various vitamin, 18 seed amino acids, 36 kinds of mineral elements, 20 various trace elements and various bioactivators are contained in red date pulp.But the red date of the overwhelming majority is by direct marketing for a long time, because which limit the profit margin of jujube agriculture.The chain industrialization that the intensive processing of red date greatly can be enriched red date product category, widen the Sales Channel of red date, increases red date value-added content of product, extends red date, produces good economic benefit.
Extracting red date stone is a key link during red date intensive processing is produced.At present, polarization state is at the extracting red date stone equipment of enterprise's application, one class is the very simple hand-held red date pit-removing device of structure, one hand-held red date during operation, the stoning pipe stoning that another hand-held lever moves up and down, although this corer equipment investment is little, inefficiency, especially Labor Safety is poor, and the hand holding jujube is easy to injured especially.Another kind of is the jujube pitter that mechanization degree is higher, roughly can be divided into chain type stoning formula and the large class of three station stoning formulas two according to operation principle.Chain type stoning formula jujube pitter is processed the jujube pitter of the more use in family by middle-size and small-size red date processing enterprise and red date, during work, in hopper, red date adopts roller material loading, the people that falls is arranged on year jujube mould on material loading conveyer chain, the hairbrush of a rotation or leaf planishing device is had to tie righting to carrying red date in jujube mould above conveyer chain, ensure in each mould, to only have a red date, complete red date to queue up, under conveyer chain effect, in mould, red date enters stoning station, compacting part coordinates compression to treat enuleation date with a year jujube mould, complete the location to red date, stoning pipe has moved back and forth stoning operation under transmission system effect, enuleation date and jujube core fall people's let-off gear(stand) separately respectively subsequently.This equipment is owing to adopting roller material loading, and operating rate is restricted, when speed chain is too high, shake is comparatively large, and be unfavorable for that red date is located, production efficiency is lower, another defect carries the size of jujube mould to red date to have certain requirement, just needs more mold exchange when exceeding certain specification.Three station stoning formula jujube pitters are that more jujube pitter is applied in another kind of market, such stoner After Enucleation through clamping, rush core, rush jujube three stations and complete stoning operation.One pressure, pressure jujube parts will treat enuleation date press-in red jujube clamp or card jujube hole, and red date is clamped location; Two rush core, and location red date enters stoning station, and rush core pipe and moved downward stoning operation, jujube core falls into output mechanism; Three rush jujube, and enuleation date advances into people's jujube station, are about to enuleation date discharge from clamper or card jujube hole under pressure jujube bar.The production efficiency of three station stoning formula jujube pitters improves a lot, but mainly carry jujube mould or card jujube hole by the red date people that naturally falls during material loading, lack auxiliary body and carry out fixing quantity to carrying red date quantity on jujube conveyer belt, red date is caused to extrude mutually, conveyer belt is uploaded jujube mould and is failed fully to carry jujube, loading efficiency is low, and it is still more serious that sky rushes phenomenon.All there is the problems such as red jujube clamp higher to the requirement of red date classification before stoner stoning, need change corresponding size for the extracting red date stone of different stage and rotary centralizer, process be cumbersome in above-mentioned two kinds of mechanical type jujube pitters.But between the red date of in fact different cultivars, widely different between even same kind Different Individual.
Jujube folder walnut is the new product of a kind of red date processing, is that walnut is inserted enuleation date central authorities.The requirement that this product is processed red date, except wanting stoning, longitudinally needs in enuleation date side to cut, is inserted by walnut to facilitate.
Make a general survey of the prior art situation of present stage China's jujube pitter, should according to actual conditions, strengthen energetically practical, result of use good, mechanization degree is high, the stoner of use safety.Before reaching this target, develop the artificial seeder that some are practical, security is good with suiting measures to local conditions also be very important.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of jujube to press from both sides the jujube pitter of walnut, although this stoner does not have the effect of mechanization stoner high, structure is simple, and invest little, security is good, and good to the adaptability of red date size, stoning is effective.
For achieving the above object, the present invention adopts following technical scheme to realize.
The jujube pitter of jujube folder walnut of the present invention, comprises frame, platform, driving shaft, foot-operated bent axle, pedal, drive rod bent axle, drive rod, universal joint, drive rod guide pipe, stoning pipe, roof nucleus bar, roof nucleus bar fixture, clamps jujube tool, jujube core falls hole, the tight parts of bullet, drive rod guide pipe fixing hole.Platform is supported by frame, and on platform, symmetrical place is provided with two cover jujube cores and falls hole and drive rod guide pipe fixing hole.The lower, transverse of frame is provided with driving shaft, and driving shaft is provided with foot-operated bent axle and drive rod bent axle.Foot-operated bent axle is provided with pedal.The top of drive rod bent axle connects drive rod.On drive rod guide pipe fixing hole, activity is fixed with drive rod guide pipe.Drive rod below platform after universal joint under the restriction of drive rod guide pipe, drive rod above platform moves up and down vertically, the horizontal end of drive rod connects vertical stoning pipe, the vertical corresponding jujube core of stoning pipe falls hole, the downside of stoning pipe inside is provided with roof nucleus bar, and roof nucleus bar is fastened on outside drive rod guide pipe by roof nucleus bar fixture by the clearance channel of stoning pipe.The tight parts of bullet of clamping jujube tool are arranged with at fall hole outer of jujube core.
The holder that described clamping jujube tool is connected with clamping jujube tool handle by two clamping jujube tool heads of symmetry is formed, and is provided with fixing hole, is fixed together by two holders by fixing button at fixing hole at clamping jujube tool head and clamping jujube tool handle connecting place.The center of clamping jujube tool head is provided with stoning pipe through semicircle orifice, the periphery of the side of clamping jujube tool head plane is provided with the clamping jujube bar of 3-4 semicircular in shape, the clamping jujube bar of two clamping jujube tool heads is combined rounded, between two clamping jujube tool handles, be provided with Compress Spring.
The tight parts of described bullet comprise retainer plate, spring and shell fragment, and retainer plate is the shape of a hoof, and forward, fall centered by hole to being fixed on platform by jujube core, shell fragment is also the shape of a hoof to shape of a hoof mouth, is fixed on inside retainer plate by spring symmetry.
Be provided with longitudinal slot groove on rear side of the middle below of described stoning pipe, roof nucleus bar fixture and clearance channel not frictional impact mutually, in the lower end of stoning pipe, the side of clearance channel is provided with a leg-of-mutton outstanding blade, while stoning, longitudinally cut by stoning jujube.
When the operation principle of the jujube pitter of jujube of the present invention folder walnut is installed, by right-hand man's difference of operating worker, the jujube core enabling platform sinistral or right side falls hole and drive rod guide pipe fixing hole, has installed all parts.During preparation work, will treat that the red date of stoning is placed on the side on platform, finished product box is placed on hand-held clamping jujube tool side, and nuclear waste case is placed on jujube core and falls immediately below hole.During operation, before people is sitting in stoner, Double-foot pedal plate, one hand-held clamping jujube tool, hold clamping jujube tool handle Compress Spring and make clamping jujube tool head the first transaction of a day's business certain angle, after the clamping jujube bar centre of clamping jujube tool head vertically put into by red date by another hand one by one, unclamp the clamping jujube tool handle held with a firm grip, clamping jujube tool head is under the effect of Compress Spring, by the central authorities of red date clamping and positioning at clamping jujube tool, then jujube tool head red date will be clamped upwards, by inserting in the tight parts of bullet after forward direction on platform, by shell fragment fixed clamp jujube tool head, make red date vertically upper aligning stoning pipe, lower aligning jujube core falls hole, when foot-operated bent axle makes drive shaft turns half-turn, drive rod bent axle is to bottom, stoning pipe is passed down through red date center, jujube core is poured in stoning pipe, when foot-operated bent axle makes driving shaft be rotated further again, after stoning pipe leaves red date from bottom to top, hand-held clamping jujube tool is extracted out from the tight parts of bullet, hold clamping jujube tool handle, loosen the clamping of clamping jujube pole pair red date, the red date of stoning is thrown in finished product hopper aside, another is treated that the red date of stoning is put in the middle of the clamping jujube bar of clamping jujube tool head by another hand, now, foot-operated bent axle is rotated further, up along with stoning pipe, stoning pipe is dropped out under the roof nucleus bar of jujube core in stoning pipe in stoning pipe stops, fall into prepare in the ash can platform in advance from the jujube core hole that falls.Circulation like this, both hands both feet can be worked continuously.
Beneficial effect of the present invention is as follows:
(1) present invention employs bent axle cycle rotation and change the principle moved both vertically up and down into, at foot-operated crank rotation during one week, devise successively to put into and treat that stoning jujube is in clamping jujube tool, undershoot jujube core, taking-up completes stoning jujube clamping jujube tool, to drain jujube core, again put into and treat working continuously of stoning jujube clamping jujube tool, above-mentioned four series-operations are closely connected, and have and leave certain operating time, when a hand operated clamping jujube tool of custom operation (left slash or right slash), another autograph letter is alone puts into clamping jujube tool in taking red date to prepare from platform, both hands both feet are simple repetitive operation operation.(2) on workbench, devise to hommization of the present invention two groups of symmetrical jujube cores to fall hole and drive rod guide pipe fixing hole, just can install according to the physiological property of concrete operations workman when equipment is installed, convenient operative, increases work efficiency.(3) the present invention have employed the clamping of clamping jujube tool and treats enuleation date at stoning position, thoroughly solves the safety problem of the hand-held red date of prior art.(4) clamping jujube tool of the present invention adopts two semicircular edges to be provided with the clamping jujube tool head of clamping jujube bar formation, red date is clamped in by the lever principle of Compress Spring the center clamping jujube tool head, when red date is large, the opening angle of two clamping jujube tool heads is a little large, the opening angle of red date hour two clamping jujube tool heads is a little bit smaller, be applicable to the extracting red date stone of any kind, size, solve prior art and problem that is high or frequent replacing clamper is required to red date difference in size.(5) the tight parts of bullet of the present invention are and the close-fitting parts of clamping jujube tool of the present invention, the insertion both sides of the tight parts of bullet are equipped with the shape of a hoof shell fragment of Compress Spring, no matter clamping varies in size the clamping jujube tool head or wide or after narrowly inserting the tight parts of bullet of red date, the position that red date is in aligning stoning pipe all the time, lower aligning jujube core falls hole, ensure that accuracy and the accuracy of stoning.(5) the present invention is fulfiled assignment by oneself cooperation of both hands both feet of a people, and therefore, operating efficiency is very high, and Enucleation efficiency is more than 99%.(6) structure of the present invention is simple, and cost of manufacture is low, has promotion prospect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is clamping jujube lamps structure schematic diagram of the present invention.
Fig. 3 is clamping jujube tool head of the present invention and clamping jujube tool handle structure schematic diagram.
Fig. 4 is the tight modular construction schematic diagram of bullet of the present invention.
Fig. 5 is stoning pipe right view of the present invention.
Fig. 6 is stoning pipe upward view of the present invention.
In figure: 1, frame, 2, platform, 3, driving shaft, 4, foot-operated bent axle, 5, pedal, 6, drive rod bent axle, 7, drive rod, 8, universal joint, 9, drive rod guide pipe, 10, stoning pipe, 11, roof nucleus bar, 12, roof nucleus bar fixture, 13, clamping jujube tool, 14, jujube core falls hole, 15, the tight parts of bullet, 16, guide pipe fixing hole, 17, clamping jujube tool head, 18, clamping jujube tool handle, 19, fixing button, 20, clamping jujube bar, 21, stoning pipe is through semicircle orifice, 22, Compress Spring, 23, fixing hole, 24, retainer plate, 25, spring, 26, shell fragment, 27, clearance channel, 28, blade.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, the jujube pitter of jujube of the present invention folder walnut comprises frame 1, platform 2, driving shaft 3, foot-operated bent axle 4, pedal 5, drive rod bent axle 6, drive rod 7, universal joint 8, drive rod guide pipe 9, stoning pipe 10, roof nucleus bar 11, roof nucleus bar fixture 12, clamping jujube tool 13, jujube core fall hole 14, the tight parts 15 of bullet, drive rod guide pipe fixing hole 16.Described platform 2 is supported by frame 1, and on platform 2, symmetrical place is provided with two cover jujube cores and falls hole 14 and drive rod guide pipe fixing hole 16.The lower, transverse of described frame 1 is provided with driving shaft 3, and driving shaft 3 is provided with foot-operated bent axle 4 and drive rod bent axle 6.The top of described drive rod bent axle 6 connects drive rod 7.On drive rod guide pipe fixing hole 16, activity is fixed with drive rod guide pipe 9, drive rod 7 after universal joint 8 under the restriction of drive rod guide pipe 9, move up and down vertically above platform 2, the horizontal end of drive rod 7 connects vertical stoning pipe 10, the vertical corresponding jujube core of described stoning pipe 10 falls hole 14, the downside of stoning pipe 10 inside is provided with roof nucleus bar 11, and described roof nucleus bar 11 is fastened on outside drive rod guide pipe 9 by roof nucleus bar fixture 12 by the clearance channel 27 of stoning pipe 10.The tight parts 15 of bullet of clamping jujube tool 13 are arranged with at fall hole 14 outer of jujube core.Described foot-operated bent axle 4 is provided with pedal 5.
As Fig. 2, shown in 3, the holder that clamping jujube tool 13 of the present invention is connected with clamping jujube tool handle 18 by two clamping jujube tool heads 17 of symmetry is formed, fixing hole 23 is provided with at clamping jujube tool head 17 and clamping jujube tool handle 18 connecting place, by fixing button 19, two holders are fixed together at fixing hole 23, the center of described clamping jujube tool head 17 is provided with stoning pipe through semicircle orifice 21, the periphery of the side of clamping jujube tool head 17 plane is provided with the clamping jujube bar 20 of 3-4 semicircular in shape, the clamping jujube bar 20 of two clamping jujube tool heads 17 is combined rounded, Compress Spring 22 is provided with between two clamping jujube tool handles 18.The described long 30-50 ㎜ of clamping jujube bar 20.
As shown in Figure 4, the tight parts 15 of bullet of the present invention comprise retainer plate 24, spring 25 and shell fragment 26, and retainer plate 24 is the shape of a hoof, shape of a hoof mouth forward, fall centered by hole 14 to being fixed on platform 2 by jujube core, shell fragment 26 is also the shape of a hoof, is fixed on inside retainer plate 24 by spring 25 symmetry.
As shown in Figure 5,6, longitudinal slot groove 27 is provided with on rear side of the middle below of stoning pipe 10 of the present invention, roof nucleus bar fixture 12 not frictional impact mutual with clearance channel 27, in the lower end of stoning pipe 10, the side of clearance channel 27 is provided with a leg-of-mutton outstanding blade 28, while stoning, stoning jujube is longitudinally cut.

Claims (4)

1. the jujube pitter of jujube folder walnut, it is characterized in that, stoner comprises frame, platform, driving shaft, foot-operated bent axle, pedal, drive rod bent axle, drive rod, universal joint, drive rod guide pipe, stoning pipe, roof nucleus bar, roof nucleus bar fixture, clamping jujube tool, jujube core falls hole, the tight parts of bullet, drive rod guide pipe fixing hole, described platform is supported by frame, on platform, symmetrical place is provided with two cover jujube cores and falls hole and drive rod guide pipe fixing hole, the lower, transverse of described frame is provided with driving shaft, driving shaft is provided with foot-operated bent axle and drive rod bent axle, described foot-operated bent axle is provided with pedal, the top of described drive rod bent axle connects drive rod, on drive rod guide pipe fixing hole, activity is fixed with drive rod guide pipe, drive rod below platform after universal joint under the restriction of drive rod guide pipe, drive rod above platform moves up and down vertically, the horizontal end of drive rod connects vertical stoning pipe, the vertical corresponding jujube core of described stoning pipe falls hole, the downside of stoning pipe inside is provided with roof nucleus bar, described roof nucleus bar is fastened on outside drive rod guide pipe by the clearance channel of stoning pipe by roof nucleus bar fixture, the tight parts of bullet of clamping jujube tool are arranged with at fall hole outer of jujube core.
2. the jujube pitter of jujube folder walnut according to claim 1, it is characterized in that, the holder that described clamping jujube tool is connected with clamping jujube tool handle by two clamping jujube tool heads of symmetry is formed, fixing hole is provided with at clamping jujube tool head and clamping jujube tool handle connecting place, by fixing button, two holders are fixed together at fixing hole, the center of described clamping jujube tool head is provided with stoning pipe through semicircle orifice, the periphery of the side of clamping jujube tool head plane is provided with the clamping jujube bar of 3-4 semicircular in shape, the clamping jujube bar of two clamping jujube tool heads is combined rounded, Compress Spring is provided with between two clamping jujube tool handles.
3. the jujube pitter of jujube folder walnut according to claim 1, it is characterized in that, the tight parts of described bullet comprise retainer plate, spring and shell fragment, retainer plate is the shape of a hoof, shape of a hoof mouth forward, fall centered by hole to being fixed on platform by jujube core, shell fragment is also the shape of a hoof, is fixed on inside retainer plate by spring symmetry.
4. the jujube pitter of jujube according to claim 1 folder walnut, is characterized in that, be provided with longitudinal slot groove on rear side of the middle below of described stoning pipe, and in the lower end of stoning pipe, the side of clearance channel is provided with a leg-of-mutton outstanding blade.
CN201610033472.6A 2016-01-19 2016-01-19 Red date pitting machine for walnut-containing dates Pending CN105520161A (en)

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CN201610033472.6A CN105520161A (en) 2016-01-19 2016-01-19 Red date pitting machine for walnut-containing dates

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Application Number Priority Date Filing Date Title
CN201610033472.6A CN105520161A (en) 2016-01-19 2016-01-19 Red date pitting machine for walnut-containing dates

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106954863A (en) * 2017-04-28 2017-07-18 哈尔滨理工大学 A kind of jujube stoning of jujube folder walnut and side slotting machine
CN107684059A (en) * 2017-10-18 2018-02-13 刘茂祥 Make the device and method of jujube bag mulberry
CN111296857A (en) * 2020-04-29 2020-06-19 石河子大学 Centre gripping punching press formula red date stoner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201308086Y (en) * 2008-11-18 2009-09-16 东莞市鸿兴食品有限公司 Pedal-type fruit stoning machine
CN201700369U (en) * 2010-07-06 2011-01-12 刘振省 Novel full-automatic red jujube core remover
KR20110135656A (en) * 2010-06-11 2011-12-19 김금식 Pulp separator from plum
CN204819387U (en) * 2015-06-26 2015-12-02 常州市南飞机械有限公司 Simple and easy clamp is bound and is put
CN205378813U (en) * 2016-01-19 2016-07-13 山西省农业科学院农产品加工研究所 Red date stoner
CN205455884U (en) * 2016-01-19 2016-08-17 山西省农业科学院农产品加工研究所 Jujube presss from both sides red date stoner of walnut

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201308086Y (en) * 2008-11-18 2009-09-16 东莞市鸿兴食品有限公司 Pedal-type fruit stoning machine
KR20110135656A (en) * 2010-06-11 2011-12-19 김금식 Pulp separator from plum
CN201700369U (en) * 2010-07-06 2011-01-12 刘振省 Novel full-automatic red jujube core remover
CN204819387U (en) * 2015-06-26 2015-12-02 常州市南飞机械有限公司 Simple and easy clamp is bound and is put
CN205378813U (en) * 2016-01-19 2016-07-13 山西省农业科学院农产品加工研究所 Red date stoner
CN205455884U (en) * 2016-01-19 2016-08-17 山西省农业科学院农产品加工研究所 Jujube presss from both sides red date stoner of walnut

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106954863A (en) * 2017-04-28 2017-07-18 哈尔滨理工大学 A kind of jujube stoning of jujube folder walnut and side slotting machine
CN106954863B (en) * 2017-04-28 2022-08-09 哈尔滨理工大学 Jujube kernel removing and side edge notching machine for jujube-walnut cracker
CN107684059A (en) * 2017-10-18 2018-02-13 刘茂祥 Make the device and method of jujube bag mulberry
CN107684059B (en) * 2017-10-18 2023-09-08 刘茂祥 Device and method for manufacturing jujube bag
CN111296857A (en) * 2020-04-29 2020-06-19 石河子大学 Centre gripping punching press formula red date stoner

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Application publication date: 20160427