CN112044516A - Kraft case cardboard waste material shredding device - Google Patents
Kraft case cardboard waste material shredding device Download PDFInfo
- Publication number
- CN112044516A CN112044516A CN202010852843.XA CN202010852843A CN112044516A CN 112044516 A CN112044516 A CN 112044516A CN 202010852843 A CN202010852843 A CN 202010852843A CN 112044516 A CN112044516 A CN 112044516A
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- CN
- China
- Prior art keywords
- fixedly connected
- rotating shaft
- belt pulley
- rod
- belt
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/286—Feeding devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/22—Arrangements or mountings of driving motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
Abstract
The invention discloses a smashing treatment device for kraft liner paperboard waste, relates to the technical field of waste smashing, and aims to solve the problems that the conventional smashing treatment device for kraft liner paperboard waste needs manual feeding, cannot control the feeding amount, is easy to cause material blocking, wastes time and labor, is complex to operate, improves the labor cost, and reduces the smashing treatment efficiency. The double-shaft motor type waste crushing device is novel in design and simple in operation, the double-shaft motor can drive the threaded pipe to move through starting, the amount of waste can be controlled, the crushing roller is driven to rotate through the differential mechanism, the waste is crushed, the crushed waste can fall onto the second belt to be conveyed, the labor cost is reduced, and the crushing treatment efficiency is improved.
Description
Technical Field
The invention relates to the technical field of waste crushing, in particular to a device for crushing and treating kraft liner paperboard waste.
Background
The cardboard reducing mechanism can handle anomalous waste paper board, unqualified carton, color box, carton, has or not the printing all can, can solve the very tricky problem of enterprise administrator, helps the cyclic utilization of paper product, and the pollution abatement along with the development of society, cardboard reducing mechanism is constantly improved, more and more accords with the demand of modern enterprise, for this reason, provides a kraft box cardboard waste material shredding device.
Disclosure of Invention
The device for crushing and treating the cardboard waste of the kraft box provided by the invention solves the problems that the conventional device for crushing and treating the cardboard waste of the kraft box needs manual feeding, cannot control the feeding amount, is easy to cause material clamping phenomenon, wastes time and labor, is complex to operate, improves the labor cost and reduces the crushing and treating efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a kraft box cardboard waste material shredding device, includes the base, the equal fixedly connected with backup pad in both sides top of base, two the top fixedly connected with apron of backup pad is located the left side the right side of backup pad is equipped with actuating mechanism, actuating mechanism's top is equipped with first drive mechanism, actuating mechanism's below is equipped with second drive mechanism, two be equipped with rubbing crusher structure between the backup pad, rubbing crusher structure and right side be equipped with differential mechanism between the backup pad.
Preferably, actuating mechanism include with the left side the L shape pole of the right side fixed connection of backup pad, the top fixedly connected with biax motor of L shape pole, the first pivot of left side output shaft fixedly connected with of biax motor, the left end of first pivot is rotated and is connected in the left side inside the right side of backup pad, the right-hand member output shaft fixedly connected with second pivot of biax motor, the right-hand member of second pivot is rotated and is connected in the right side inside the left side of backup pad.
Preferably, first drive mechanism connects in two including rotating the backup pad is close to the inside reciprocal lead screw in one side each other, the outside screw thread cover of reciprocal lead screw is equipped with screwed pipe, two the outside of keeping away from one end each other of reciprocal lead screw is all fixed the cover and is equipped with first belt pulley, the fixed cover in outside of first pivot is equipped with the second belt pulley, the cover is equipped with first belt between second belt pulley and the first belt pulley.
Preferably, the second transmission mechanism comprises four clamping plates fixedly connected with the top of the base, the insides of the tops of the two clamping plates on the left side and the two clamping plates on the right side are respectively and rotatably connected with a rotating rod, an outer fixing sleeve of the rotating rod is provided with a rotating roller, a second belt is sleeved between the two rotating rollers, the second belt movably penetrates through the inside of the supporting plate on the right side, the outer fixing sleeve of the rotating rod on the front side on the left side is provided with a first bevel gear, an outer fixing sleeve of the second rotating shaft is provided with a third belt pulley, the top of the base is fixedly connected with a first supporting rod, the top of the first supporting rod is fixedly connected with a first bearing, an inner fixing sleeve of the first bearing is provided with a third rotating shaft, a fourth belt pulley is fixedly sleeved on the outer side of the left end of the third rotating shaft, and a third belt pulley is sleeved, and a second bevel gear is fixedly sleeved outside the right end of the third rotating shaft and is in meshing transmission with the first bevel gear.
Preferably, rubbing crusher constructs including being fixed in the inside crushing frame of apron, the bottom fixedly connected with guide frame of crushing frame, the both sides inner wall of crushing frame all articulates there is the fly leaf, the inside rotation in back of crushing frame is connected with a plurality of fourth pivots, the positive outside fixed cover of fourth pivot is equipped with crushing roller, crushing roller is located the top of guide frame.
Preferably, the differential mechanism comprises a second belt pulley fixedly sleeved outside the right end of the second rotating shaft, a first belt pulley is also fixedly sleeved outside the reciprocating screw rod on the right side, a first belt is also sleeved between the first belt pulley and the second belt pulley, a connecting rod is fixedly connected to the left side of the supporting plate positioned on the right side, a differential is fixedly connected on the left side of the connecting rod, a second supporting rod is fixedly connected on the top of the base, the top of the second support rod is fixedly connected with a second bearing, a fifth rotating shaft is fixedly sleeved in the second bearing, the second rotating shaft is in transmission connection with a fifth rotating shaft through a differential mechanism, a third bevel gear is fixedly sleeved outside the left end of the fifth rotating shaft, and a fourth bevel gear is fixedly sleeved outside the back of the fourth rotating shaft and is in meshing transmission with the third bevel gear.
Preferably, be located the right side fixedly connected with striker plate of backup pad, two the equal fixedly connected with guide block in top outer wall of one side that the screwed pipe kept away from each other, two the equal fixedly connected with guide bar in top of one side that the backup pad is close to each other, the guide bar activity runs through the inside of guide block.
Compared with the prior art, the invention has the beneficial effects that:
1. the waste crushing device comprises a movable plate, a crushing frame, a reciprocating screw rod and a crushing roller, wherein the movable plate is arranged on the movable plate, and the movable plate is arranged on the crushing frame.
2. According to the invention, the rotating rod, the rotating roller, the second belt and other structures are arranged, wherein the rotating roller can be driven to rotate by the rotation of the double-shaft motor, and the second belt can be rotated by the rotation of the rotating roller, so that the crushed waste can be conveyed.
To sum up, the device modern design, easy operation through the start-up of double-shaft motor, can drive the screwed pipe and remove, and then can control how much of waste material volume, drives through differential mechanism simultaneously and smashes the roller and rotate, smashes the waste material, and kibbling waste material can fall into on the second belt, conveys, has reduced the cost of labor, has improved shredding's efficiency.
Drawings
FIG. 1 is a schematic front view of a shredding device for waste kraft liner boards according to the present invention;
FIG. 2 is a schematic top view of the waste shredder of kraft liner board according to the present invention;
FIG. 3 is a schematic top view of a crushing roller of the kraft paper board waste crushing treatment device according to the present invention;
fig. 4 is an enlarged schematic structural view of a rotating rod and a rotating roller of the kraft paper board waste crushing treatment device provided by the invention.
In the figure: 1 base, 2 supporting plates, 3 cover plates, 4 double-shaft motors, 5 first rotating shafts, 6 first belts, 7 reciprocating screw rods, 8 third belt pulleys, 9 second rotating shafts, 10 second belt pulleys, 11L-shaped rods, 12 third belts, 13 first bevel gears, 14 rotating rollers, 15 rotating rods, 16 third rotating shafts, 17 second bevel gears, 18 guide frames, 19 fifth rotating shafts, 20 second belts, 21 differentials, 22 connecting rods, 23 baffle plates, 24 clamping plates, 25 fourth rotating shafts, 26 crushing rollers, 27 threaded pipes, 28 guide blocks, 29 first belt pulleys, 30 guide rods, 31 movable plates, 32 crushing frames, 33 third bevel gears, 34 fourth bevel gears and 35 fourth belt pulleys.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a cowhide case cardboard waste material shredding device, includes base 1, the equal fixedly connected with backup pad 2 in both sides top of base 1, the top fixedly connected with apron 3 of two backup pads 2, the right side that is located left side backup pad 2 is equipped with actuating mechanism, actuating mechanism's top is equipped with first drive mechanism, actuating mechanism's below is equipped with second drive mechanism, be equipped with rubbing crusher between two backup pads 2, be equipped with differential mechanism between rubbing crusher and the right side backup pad 2.
In this embodiment, actuating mechanism includes L shape pole 11 with the right side fixed connection of left side support plate 2, the top fixedly connected with double-shaft motor 4 of L shape pole 11, the first pivot 5 of left side output shaft fixedly connected with of double-shaft motor 4, the left end of first pivot 5 is rotated and is connected inside the right side of left side support plate 2, the right-hand member output shaft fixedly connected with second pivot 9 of double-shaft motor 4, the right-hand member of second pivot 9 is rotated and is connected inside the left side of right side support plate 2.
In this embodiment, the first transmission mechanism includes that the rotation is connected in two backup pads 2 and is close to the inside reciprocal lead screw 7 in one side each other, and the outside screw thread cover of reciprocal lead screw 7 is equipped with screwed pipe 27, and the outside of keeping away from one end each other of two reciprocal lead screws 7 is all fixed the cover and is equipped with first belt pulley 29, and the outside fixed cover of first pivot 5 is equipped with second belt pulley 10, and the cover is equipped with first belt 6 between second belt pulley 10 and the first belt pulley 29.
In this embodiment, the second transmission mechanism includes four clamping plates 24 fixedly connected to the top of the base 1, the tops of the two clamping plates 24 on the left side and the two clamping plates 24 on the right side are both rotatably connected with a rotating rod 15, the outer portion of the rotating rod 15 is fixedly sleeved with a rotating roller 14, a second belt 20 is sleeved between the two rotating rollers 14, the second belt 20 movably penetrates through the inner portion of the right support plate 2, the outer portion of the front rotating rod 15 on the left side is fixedly sleeved with a first bevel gear 13, the outer portion of the second rotating shaft 9 is fixedly sleeved with a third belt pulley 8, the top of the base 1 is fixedly connected with a first support rod, the top of the first support rod is fixedly connected with a first bearing, the inner portion of the first bearing is fixedly sleeved with a third rotating shaft 16, the outer portion of the left end of the third rotating shaft 16 is fixedly sleeved with a fourth belt pulley 35, a third belt 12, the right end of the third rotating shaft 16 is externally fixed with a second bevel gear 17, and the second bevel gear 17 is in meshing transmission with the first bevel gear 13.
In this embodiment, rubbing crusher constructs including being fixed in the inside crushing frame 32 of apron 3, the bottom fixedly connected with guide frame 18 of crushing frame 32, and the both sides inner wall of crushing frame 32 all articulates there is fly leaf 31, and the inside rotation in back of crushing frame 32 is connected with a plurality of fourth pivot 25, and the positive outside fixed cover of fourth pivot 25 is equipped with crushing roller 26, and crushing roller 26 is located guide frame 18's top.
In this embodiment, differential mechanism establishes the outside second belt pulley 10 in second pivot 9 right-hand member including fixed cover, the outside that is located the reciprocal lead screw 7 in right side is fixed also fixed cover and is equipped with first belt pulley 29, also the cover is equipped with first belt 6 between first belt pulley 29 and the second belt pulley 10, be located the left side fixedly connected with connecting rod 22 of right side backup pad 2, the left side fixedly connected with differential mechanism 21 of connecting rod 22, the top fixedly connected with second bracing piece of base 1, the top fixedly connected with second bearing of second bracing piece, the fixed cover of inside of second bearing is equipped with fifth pivot 19, second pivot 9 is connected with the transmission of fifth pivot 19 through differential mechanism 21, the outside fixed cover in left end of fifth pivot 19 is equipped with third bevel gear 33, the outside fixed cover in the back of fourth pivot 25 is equipped with fourth bevel gear 34, fourth bevel gear 34 and the meshing transmission of third bevel gear 33.
In this embodiment, be located the right side fixedly connected with striker plate 23 of right side backup pad 2, the equal fixedly connected with guide block 28 in top outer wall of the one side that two screwed pipes 27 kept away from each other, the equal fixedly connected with guide bar 30 in top of the one side that two backup pads 2 are close to each other, the inside of guide block 28 is run through in the guide bar 30 activity.
The working principle is that, firstly, the double-shaft motor 4 is started, the rotation of the left output shaft of the double-shaft motor 4 can drive the first rotating shaft 5 to rotate, the rotation of the first rotating shaft 5 can drive the first belt 6 to rotate, the rotation of the first belt 6 can drive the first belt pulley 29 to rotate, the rotation of the first belt pulley 29 can drive the screwed pipe 27 to move transversely under the limit of the guide rod 30 to the guide block 28, the transverse movement of the screwed pipe 27 can drive the movable plate 31 to rotate, and further the amount of the waste material can be controlled, meanwhile, the rotation of the right output shaft of the double-shaft motor 4 can drive the second rotating shaft 9 to rotate, the rotation of the second rotating shaft 9 can drive the differential 21 to work, and further drive the fifth rotating shaft 19 to rotate, the rotation of the fifth rotating shaft 19 can drive the third bevel gear 33 to rotate, and the rotation of the third bevel gear 33 can drive the fourth bevel gear 34 to rotate, the rotation of the fourth bevel gear 34 can drive the fourth rotating shaft 25 to rotate, the rotation of the fourth rotating shaft 25 can drive the crushing roller 26 to rotate, and further can crush the waste, meanwhile, the rotation of the second rotating shaft 9 can drive the third belt pulley 8 to rotate, the rotation of the third belt pulley 8 can drive the third belt 12 to rotate, the rotation of the third belt 12 can drive the fourth belt pulley 35 to rotate, the rotation of the fourth belt pulley 35 can drive the third rotating shaft 16 to rotate, the rotation of the third rotating shaft 16 can drive the second bevel gear 17 to rotate, the rotation of the second bevel gear 17 can drive the first bevel gear 13 to rotate, the rotation of the first bevel gear 13 can drive the rotating rod 15 to rotate, the rotation of the rotating rod 15 can drive the rotating roller 14 to rotate, and further drive the second belt 20 to transmit, can convey the waste material that is smashed falling on second belt 20, through double-shaft motor 4's start-up, can drive screwed pipe 27 and remove, and then can control how much of waste material volume, drive simultaneously through differential mechanism 21 and smash roller 26 and rotate, smash the waste material, kibbling waste material can fall into second belt 20 on, conveys, has reduced the cost of labor, has improved shredding's efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a kraft case cardboard waste material shredding device, includes base (1), its characterized in that, the equal fixedly connected with backup pad (2) in both sides top of base (1), two the top fixedly connected with apron (3) of backup pad (2), be located the left side the right side of backup pad (2) is equipped with actuating mechanism, actuating mechanism's top is equipped with first drive mechanism, actuating mechanism's below is equipped with second drive mechanism, two be equipped with rubbing crusher structure between backup pad (2), rubbing crusher structure and right side be equipped with differential mechanism between backup pad (2).
2. The kraft paper board waste crushing treatment device according to claim 1, wherein the driving mechanism comprises an L-shaped rod (11) fixedly connected with the right side of the support plate (2) at the left side, a double-shaft motor (4) is fixedly connected with the top of the L-shaped rod (11), a first rotating shaft (5) is fixedly connected with a left output shaft of the double-shaft motor (4), the left end of the first rotating shaft (5) is rotatably connected with the left side inside the right side of the support plate (2), a second rotating shaft (9) is fixedly connected with a right output shaft of the double-shaft motor (4), and the right end of the second rotating shaft (9) is rotatably connected with the right side inside the left side of the support plate (2).
3. The kraft paper board waste crushing treatment device according to claim 2, characterized in that the first transmission mechanism comprises two reciprocating screw rods (7) rotatably connected to the two support plates (2) and close to one side of the support plates, the outer threaded sleeve of each reciprocating screw rod (7) is provided with a threaded pipe (27), the outer parts of one ends of the two reciprocating screw rods (7) far away from each other are fixedly provided with a first belt pulley (29), the outer fixed sleeve of the first rotating shaft (5) is provided with a second belt pulley (10), and a first belt (6) is arranged between the second belt pulley (10) and the first belt pulley (29).
4. The kraft paper board waste crushing treatment device according to claim 1, characterized in that the second transmission mechanism comprises four clamping plates (24) fixedly connected with the top of the base (1), two clamping plates (24) on the left side and two clamping plates (24) on the right side are both rotatably connected with a rotating rod (15) inside the top, a rotating roller (14) is fixedly sleeved outside the rotating rod (15), a second belt (20) is sleeved between the two rotating rollers (14), the second belt (20) movably penetrates through the right side inside the supporting plate (2), a first bevel gear (13) is fixedly sleeved outside the rotating rod (15) on the front side, a third belt pulley (8) is sleeved outside the second rotating shaft (9), and a first supporting rod is fixedly connected with the top of the base (1), the top fixedly connected with first bearing of first bracing piece, the fixed cover in inside of first bearing is equipped with third pivot (16), the outside fixed cover in left end of third pivot (16) is equipped with fourth belt pulley (35), the cover is equipped with third belt (12) between fourth belt pulley (35) and third belt pulley (8), the fixed cover in right-hand member outside of third pivot (16) is equipped with second bevel gear (17), and second bevel gear (17) and first bevel gear (13) meshing transmission.
5. The kraft paper board waste crushing treatment device according to claim 1, wherein the crushing mechanism comprises a crushing frame (32) fixed inside the cover plate (3), the bottom of the crushing frame (32) is fixedly connected with the guide frame (18), the inner walls of two sides of the crushing frame (32) are hinged with movable plates (31), the back of the crushing frame (32) is rotatably connected with a plurality of fourth rotating shafts (25), the front outer part of each fourth rotating shaft (25) is fixedly sleeved with a crushing roller (26), and the crushing roller (26) is located above the guide frame (18).
6. The kraft paper board waste crushing treatment device according to claim 3 or 5, characterized in that the differential mechanism comprises a second belt pulley (10) fixedly sleeved outside the right end of the second rotating shaft (9), the reciprocating screw rod (7) positioned on the right side is also fixedly sleeved with a first belt pulley (29), a first belt (6) is also sleeved between the first belt pulley (29) and the second belt pulley (10), a connecting rod (22) is fixedly connected on the left side of the supporting plate (2) positioned on the right side, a differential (21) is fixedly connected on the left side of the connecting rod (22), a second supporting rod is fixedly connected on the top of the base (1), a second bearing is fixedly connected on the top of the second supporting rod, a fifth rotating shaft (19) is fixedly sleeved inside the second bearing, and the second rotating shaft (9) is in transmission connection with the fifth rotating shaft (19) through the differential (21), the outer portion of the left end of the fifth rotating shaft (19) is fixedly sleeved with a third bevel gear (33), the outer portion of the back face of the fourth rotating shaft (25) is fixedly sleeved with a fourth bevel gear (34), and the fourth bevel gear (34) is in meshing transmission with the third bevel gear (33).
7. The kraft paper board waste crushing treatment device according to claim 3, characterized in that the right side of the support plate (2) is fixedly connected with a material baffle plate (23), the outer wall of the top of one side, away from each other, of the two threaded pipes (27) is fixedly connected with a guide block (28), the top of one side, close to each other, of the two support plates (2) is fixedly connected with a guide rod (30), and the guide rod (30) movably penetrates through the inside of the guide block (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010852843.XA CN112044516A (en) | 2020-08-22 | 2020-08-22 | Kraft case cardboard waste material shredding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010852843.XA CN112044516A (en) | 2020-08-22 | 2020-08-22 | Kraft case cardboard waste material shredding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112044516A true CN112044516A (en) | 2020-12-08 |
Family
ID=73599599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010852843.XA Withdrawn CN112044516A (en) | 2020-08-22 | 2020-08-22 | Kraft case cardboard waste material shredding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112044516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958195A (en) * | 2021-02-25 | 2021-06-15 | 严旭东 | High-efficient crushing equipment of tombarthite ore |
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| CN205413153U (en) * | 2016-03-10 | 2016-08-03 | 合肥绿叶园林工程有限责任公司 | Recovery unit is smashed to afforestation discarded object |
| CN207786704U (en) * | 2017-12-22 | 2018-08-31 | 孙文博 | A kind of broken concrete grinding device |
| CN209646601U (en) * | 2019-02-14 | 2019-11-19 | 姚剑鹏 | A kind of building construction Slag recovering device |
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| CN112958195A (en) * | 2021-02-25 | 2021-06-15 | 严旭东 | High-efficient crushing equipment of tombarthite ore |
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Application publication date: 20201208 |
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