CN114291619A - Paper supply device is used in carton production convenient to fast switch over - Google Patents
Paper supply device is used in carton production convenient to fast switch over Download PDFInfo
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- CN114291619A CN114291619A CN202111645333.6A CN202111645333A CN114291619A CN 114291619 A CN114291619 A CN 114291619A CN 202111645333 A CN202111645333 A CN 202111645333A CN 114291619 A CN114291619 A CN 114291619A
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- winding roller
- switching
- paper
- conveying
- roller
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 238000003825 pressing Methods 0.000 claims description 43
- 238000001179 sorption measurement Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 35
- 239000000463 material Substances 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The invention discloses a paper supply device for carton production, which is convenient for quick switching, and comprises a base and a U-shaped frame arranged above the base, wherein a rotating plate is rotatably arranged in the middle of the U-shaped frame, two ends of the rotating plate are respectively provided with a driving shaft for mounting a winding roller, and the driving shaft is provided with a positioning assembly for fixing the winding roller; the rotor plate intermediate position is connected with the switching fixed axle, switch fixed axle connection and be used for driving its switching driving piece that the upset switches in order to realize reserve winding roller, the base top is equipped with and is used for carrying out the transmission part that shifts with the winding roller, and this application designs to the drawback of current device, can switch the winding roller that provides the paper fast, has improved machining efficiency, and when tentatively carrying the paper, simultaneously, pull through the negative pressure to be convenient for look for the butt joint fast to the paper head, need not artifical manual intervention, provide the security, the practicality is strong.
Description
Technical Field
The invention relates to the technical field of carton processing equipment, in particular to a paper supply device for carton production, which is convenient to rapidly switch.
Background
The paper box is a disposable or reusable packaging product with low price and high quality, the paper boards for manufacturing the paper box can be divided into a plurality of corrugated boards, composite paper boards, single-layer paper boards and the like according to the difference of structures and materials, and the paper boxes can be used for replacing hard material packages represented by wood boxes and have the outstanding advantages of low material cost, easiness in production, convenience in storage/transportation and the like.
The paper supply device has the advantages that the base paper is required to be continuously folded and thickened during paper processing, so that the paper has certain rigidity, the paper is continuously supplied out of the winding roller under the action of the paper supply roller, after the paper on the single winding roller is used, the winding roller needs to be replaced for supplying, the supplying is stopped, and accordingly the paper supply device for producing the carton and convenient to rapidly switch is provided.
Disclosure of Invention
The invention aims to provide a paper feeding device for producing cartons, which is convenient to switch quickly and solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a paper supply device convenient for fast switching for carton production comprises a base and a U-shaped frame arranged above the base, wherein a rotating plate is rotatably arranged in the middle of the U-shaped frame, two ends of the rotating plate are respectively provided with a driving shaft for mounting a winding roller, and the driving shaft is provided with a positioning assembly for fixing the winding roller;
the middle position of the rotating plate is connected with a switching fixed shaft, the switching fixed shaft is connected with a switching driving piece which is used for driving the switching driving piece to overturn so as to realize switching of the standby winding roller, a transmission part which is used for transferring the winding roller is arranged above the base, the winding roller is supported through the transmission part, therefore, the winding roller is disassembled and assembled, and a transmission assembly which is used for transmitting paper is arranged above the U-shaped frame.
As a further scheme of the invention: the transmission assembly comprises a transmission belt, the lower surface of the transmission belt is mutually laminated with the surface of the upper side winding roller, the transmission belt comprises two transmission rollers and a belt arranged between the two transmission rollers, one end of each transmission roller is rotatably arranged on the lower fixed side plate, the width of the belt is smaller than that of the transmission roller, the length of the transmission roller is corresponding to the width of paper to be conveyed, an adsorption traction piece used for adsorbing the paper on the surface of the winding roller is arranged on the transmission roller staggered with the belt, a pressing piece used for pressing the paper is arranged above the transmission belt, the pressing piece and the lower fixed side plate are fixedly connected with a support, the lower end of the support is fixedly connected with the upper end of the base, a positioning shaft at the end part of the transmission roller is rotatably connected with the lower fixed side plate, and one of the transmission rollers is connected with a transmission motor used for driving the transmission roller to rotate.
As a further scheme of the invention: the pressing part comprises a plurality of pressing conveying rollers which are arranged at equal intervals, the pressing conveying rollers are tightly pressed with the upper end face of the belt, one side of each pressing conveying roller is rotatably connected with the upper fixed side plate, and the upper fixed side plate and the lower fixed side plate are fixedly connected through a connecting block.
As a further scheme of the invention: the adsorption traction piece comprises a negative pressure cavity arranged inside the transmission roller and a plurality of elastic pressing blocks distributed outside the transmission roller in an array mode, negative pressure holes communicated with the negative pressure cavity are formed in the elastic pressing blocks, an exhaust pipe is rotatably arranged at the center of the end portion of the transmission roller, the other end of the exhaust pipe is connected with an exhaust end of an exhaust pump, and the exhaust pump is arranged on the support.
As a further scheme of the invention: the conveying part comprises a lifting seat arranged in parallel with the base, the lifting seat is arranged on a U-shaped frame in a sliding mode, two guide rods are arranged at the upper end of the base at the other end of the U-shaped frame, the upper ends of the guide rods are arranged in a sliding mode with sliding holes in the lifting seat, at least one lifting push rod is arranged at the upper end of the base, the output end of the lifting push rod is fixedly connected with the bottom of the lifting seat, a plurality of feeding rollers are symmetrically arranged at the upper end of the lifting seat, one end of each feeding roller is connected with the surface of the lifting seat in a rotating mode, the other end of each feeding roller is connected with a positioning column in the lifting seat in a rotating mode, and the feeding rollers form a V-shaped conveying channel used for supporting the winding rollers.
As a further scheme of the invention: the positioning assembly comprises a negative pressure positioning cavity arranged in the driving shaft, a plurality of positioning through holes are distributed in the outer side of the driving shaft in an array mode, a piston pressing block is arranged in each positioning through hole in a sliding fit mode, the tail portion of the piston pressing block is connected and fixed with the inner wall of the negative pressure positioning cavity through a reset spring, and an air pump used for inflating the inside of the negative pressure positioning cavity is arranged in the negative pressure positioning cavity.
As a further scheme of the invention: the switching driving piece comprises a first gear arranged at the end part of the switching fixed shaft, the first gear is meshed with a third gear, the third gear is meshed with a second gear, and the second gear is arranged at the output end of the driving motor.
Compared with the prior art, the invention has the beneficial effects that: this application designs to the drawback of current device, can switch over the winding roller that provides the paper fast, has improved machining efficiency, when tentatively carrying the paper simultaneously, pulls through the negative pressure to be convenient for look for the butt joint fast to the paper head, need not artifical manual intervention, provide the security, the practicality is strong.
Drawings
Fig. 1 is a schematic structural view of the rear side of the present invention.
Fig. 2 is a schematic structural diagram of the front side of the present invention.
FIG. 3 is a schematic structural diagram of a positioning assembly according to the present invention.
Fig. 4 is a schematic structural view of the suction pulling member of the present invention.
Wherein: the device comprises a base 11, a lifting seat 12, a U-shaped frame 13, a first gear 14, a support 15, a rotating plate 16, an air pump 17, an air suction pipe 18, an adsorption traction piece 19, a pressing conveying roller 20, a connecting block 21, an upper fixed side plate 22, a conveying belt 23, a lower fixed side plate 24, a winding roller 25, a feeding roller 26, a positioning column 27, a guide rod 28, a conveying part 29, a driving motor 30, a second gear 31, a lifting pushing rod 32, a third gear 33, a negative pressure positioning cavity 34, a return spring 35, a positioning through hole 36, a piston pressing block 37, an air pump 38, a negative pressure cavity 39, an elastic pressing block 40 and a negative pressure hole 41.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, in an embodiment of the present invention, a paper feeding device for carton production, which is convenient for fast switching, includes a base 11 and a U-shaped frame 13 disposed above the base, a rotating plate 16 is rotatably disposed at a middle position of the U-shaped frame 13, two ends of the rotating plate 16 are respectively provided with a driving shaft for mounting a winding roller 25, and a positioning assembly for fixing the winding roller 25 is disposed on the driving shaft;
the middle position of the rotating plate 16 is connected with a switching fixed shaft, the switching fixed shaft is connected with a switching driving piece which is used for driving the switching driving piece to overturn so as to realize switching of the standby winding roller 25, a transmission part 29 which is used for transferring the winding roller 25 is arranged above the base 11, the winding roller 25 is supported through the transmission part 29, so that the winding roller 25 is assembled and disassembled, and a transmission assembly which is used for transmitting paper is arranged above the U-shaped frame 13;
the conveying component comprises a conveying belt 23, the lower surface of the conveying belt 23 is mutually attached to the surface of an upper winding roller 25, the transmission belt 23 comprises two transmission rollers and a belt arranged between the two transmission rollers, one end of each of the two transmission rollers is rotatably arranged on the lower fixed side plate 24, the width of the belt is less than the length of the conveying roller, the length of the conveying roller corresponds to the width of the paper to be conveyed, the conveying roller staggered with the belt is provided with an adsorption traction piece 19 for adsorbing the paper on the surface of the winding roller 25, a pressing piece for pressing the paper is arranged above the conveying belt 23, the pressing piece and the lower fixed side plate 24 are fixedly connected with the bracket 15, the lower end of the support 15 is fixedly connected with the upper end of the base 11, a positioning shaft at the end part of the transmission roller is rotatably connected with the lower fixed side plate 24, and one of the transmission rollers is connected with a transmission motor for driving the transmission roller to rotate;
the pressing part comprises a plurality of pressing conveying rollers 20 which are arranged at equal intervals, the pressing conveying rollers 20 are tightly pressed with the upper end face of the belt, one side of each pressing conveying roller 20 is rotatably connected with an upper fixed side plate 22, the upper fixed side plates 22 and a lower fixed side plate 24 are fixedly connected through connecting blocks 21, and paper can be smoothly conveyed along the surface of a conveying belt 23 through the plurality of pressing conveying rollers 20;
the adsorption traction piece 19 comprises a negative pressure cavity 39 arranged inside the conveying roller and a plurality of elastic pressing blocks 40 distributed outside the conveying roller in an array mode, negative pressure holes 41 communicated with the negative pressure cavity 39 are formed in the elastic pressing blocks 40, an air suction pipe 18 is rotatably arranged at the center of the end of the conveying roller, the other end of the air suction pipe 18 is connected with an air suction end of the air suction pump 17, the air suction pump 17 is arranged on the support 15, air in the negative pressure cavity 39 is sucked away through the air suction pump 17, negative pressure can be formed at the port of the negative pressure hole 41, when the elastic pressing blocks 40 are in pressing contact with the surface of paper, the head of the paper on the surface of the winding roller 25 can be adsorbed under the action of the negative pressure, and therefore the traction effect is achieved, and when the adsorption force is actually used, the damage to the paper due to the overlarge adsorption force can be avoided through debugging and control;
the transmission component 29 comprises a lifting seat 12 arranged parallel to the base 11, the lifting seat 12 is slidably arranged on the U-shaped frame 13, two guide rods 28 are arranged at the upper end of the base 11 at the other end of the U-shaped frame 13, the upper ends of the guide rods 28 are slidably arranged with the sliding holes on the lifting seat 12, at least one lifting push rod 32 is arranged at the upper end of the base 11, the output end of the lifting push rod 32 is fixedly connected with the bottom of the lifting seat 12, the supporting height of the winding roller 25 can be adjusted through the lifting push rod 32, so that the winding roller 25 and the driving shaft can be conveniently installed, a plurality of feed rollers 26 are symmetrically arranged at the upper end of the lifting seat 12, one end of each feed roller 26 is rotatably connected with the surface of the lifting seat 12, the other end of each feed roller 26 is rotatably connected with a positioning column 27 on the lifting seat 12, and the plurality of feed rollers 26 form a V-shaped transmission channel for supporting the winding roller 25, in practical use, the winding roller 25 is only required to be placed above the feeding roller 26, and under the action of the V-shaped structure, the winding roller 25 can roll to the central position, so that the later period of alignment with the driving shaft is facilitated;
the positioning assembly comprises a negative pressure positioning cavity 34 arranged inside a driving shaft, a plurality of positioning through holes 36 are distributed on the outer side of the driving shaft in an array mode, a piston press block 37 is matched in the positioning through holes 36 in a sliding mode, the tail portion of the piston press block 37 is connected and fixed with the inner wall of the negative pressure positioning cavity 34 through a reset spring 35, an inflator pump 38 used for inflating the inside of the negative pressure positioning cavity 34 is arranged inside the negative pressure positioning cavity 34, when the position of the winding roller 25 needs to be locked, a large amount of gas is injected into the negative pressure positioning cavity 34 through the inflator pump 38, under the action of air pressure, the piston press block 37 slides outwards along the positioning through holes 36 to press and contact the inner hole wall of the winding roller 25, so that the positioning is completed, when the winding roller 25 needs to be replaced in the later period, the gas in the negative pressure positioning cavity 34 only needs to be discharged through the inflator pump 38, and under the action of the reset spring 35, the piston pressing block 37 can remove the pressing on the inner wall of the return spring 35, thereby facilitating the replacement of the winding roller 25;
the switching driving part comprises a first gear 14 arranged at the end part of the switching fixed shaft, the first gear 14 is meshed with a third gear 33, the third gear 33 is meshed with a second gear 31, the second gear 31 is arranged at the output end of the driving motor 30, the driving motor 30 drives the second gear 31 to rotate, the second gear 31 drives the third gear 33 to rotate, and the third gear 33 drives the first gear 14 to rotate, so that power is provided for overturning the rotating plate 16.
The working principle of the invention is as follows: in practical use, the rotating plate 16 is driven to turn over by switching the driving member, then the fully loaded winding roller 25 is rotated to the upper side, air in the negative pressure cavity 39 is pumped out by the air pump 17, so that negative pressure is formed at the port position of the negative pressure hole 41, when the elastic pressing block 40 is in pressing contact with the surface of paper, the head of the paper on the surface of the winding roller 25 is adsorbed under the action of the negative pressure, the paper on the winding roller 25 is transferred to the pressing member and the conveying belt 23 for pressing and conveying along with the rotation of the conveying belt 23, the winding roller 25 to be replaced is transferred to the lowest side, the lifting and pushing rod 32 drives the lifting seat 12 to lift up, the winding roller 25 is supported by the feeding roller 26, at the moment, the locking of the positioning component is cancelled, then the empty winding roller 25 is unloaded, then the fully loaded winding roller 25 is placed on the feeding roller 26, and the paper to be replaced is installed on the rotating plate 16, the operation is simple and convenient.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
Claims (8)
1. A paper supply device convenient for fast switching for carton production comprises a base (11) and a U-shaped frame (13) arranged above the base, wherein a rotating plate (16) is rotatably arranged at the middle position of the U-shaped frame (13), and two ends of the rotating plate (16) are respectively provided with a driving shaft for mounting a winding roller (25);
the winding device is characterized in that a positioning assembly used for fixing the winding roller (25) is arranged on the driving shaft;
the middle position of the rotating plate (16) is connected with a switching fixed shaft, the switching fixed shaft is connected with a switching driving piece which is used for driving the switching driving piece to overturn so as to realize switching of the standby winding roller (25), a transmission part (29) which is used for transferring the winding roller (25) is arranged above the base (11), the winding roller (25) is supported through the transmission part (29), the winding roller (25) is disassembled and assembled, and a transmission assembly which is used for transmitting paper is arranged above the U-shaped frame (13).
2. The paper feeding device for carton production convenient for fast switching as claimed in claim 1, wherein the conveying assembly comprises a conveying belt (23), the lower surface of the conveying belt (23) is attached to the surface of the upper winding roller (25), the conveying belt (23) comprises two conveying rollers and a belt arranged between the two conveying rollers, one end of each of the two conveying rollers is rotatably arranged on the lower fixed side plate (24), the width of the belt is smaller than that of the conveying roller, the length of the conveying roller corresponds to the width of the paper to be conveyed, an adsorption traction member (19) for adsorbing the paper on the surface of the winding roller (25) is arranged on the conveying roller staggered with the belt, a pressing member for pressing the paper is arranged above the conveying belt (23), the pressing member and the lower fixed side plate (24) are fixedly connected with the support (15), the lower end of the support (15) is fixedly connected with the upper end of the base (11), the positioning shaft at the end part of the transmission roller is rotationally connected with the lower fixed side plate (24), and one of the transmission rollers is connected with a transmission motor for driving the transmission roller to rotate.
3. A paper supply apparatus for carton production to facilitate quick switching as claimed in claim 2, wherein said transport motor is a servo motor.
4. The paper feeding device for producing cartons convenient for quick switching as claimed in claim 2, wherein said pressing member comprises a plurality of pressing conveying rollers (20) arranged at equal intervals, said pressing conveying rollers (20) are tightly pressed with the upper end face of the belt, one side of said pressing conveying rollers (20) is rotatably connected with an upper fixed side plate (22), and said upper fixed side plate (22) is fixedly connected with a lower fixed side plate (24) through a connecting block (21).
5. The paper feeding device for carton production convenient for fast switching as claimed in claim 2, wherein the suction pulling member (19) comprises a negative pressure cavity (39) arranged inside the conveying roller and a plurality of elastic pressing blocks (40) distributed outside the conveying roller in an array manner, a negative pressure hole (41) communicated with the negative pressure cavity (39) is formed in each elastic pressing block (40), an air suction pipe (18) is rotatably arranged at the center of the end part of the conveying roller, the other end of the air suction pipe (18) is connected with the air suction end of the air suction pump (17), and the air suction pump (17) is arranged on the support (15).
6. The paper feeding device for carton production convenient for fast switching as claimed in claim 1, wherein the conveying member (29) comprises a lifting seat (12) disposed in parallel with the base (11), the lifting seat (12) is slidably disposed on the U-shaped frame (13), two guide rods (28) are disposed at the upper end of the base (11) at the other end of the U-shaped frame (13), the upper ends of the guide rods (28) are slidably disposed with the sliding holes of the lifting seat (12), at least one lifting pushing rod (32) is disposed at the upper end of the base (11), the output end of the lifting pushing rod (32) is fixedly connected with the bottom of the lifting seat (12), a plurality of feeding rollers (26) are symmetrically disposed at the upper end of the lifting seat (12), one end of the feeding rollers (26) is rotatably connected with the surface of the lifting seat (12), and the other end of the feeding roller (26) is rotatably connected with the positioning post (27) on the lifting seat (12), the plurality of feed rollers (26) form a V-shaped feed channel for supporting the winding roller (25).
7. The paper feeding device for carton production convenient for quick switching as claimed in claim 1, wherein the positioning assembly comprises a negative pressure positioning cavity (34) arranged inside the driving shaft, a plurality of positioning through holes (36) are distributed in an array manner outside the driving shaft, a piston pressing block (37) is slidably fitted in the positioning through holes (36), the tail part of the piston pressing block (37) is fixedly connected with the inner wall of the negative pressure positioning cavity (34) through a return spring (35), and an air pump (38) for inflating the negative pressure positioning cavity (34) is arranged inside the negative pressure positioning cavity (34).
8. A paper feeding apparatus for carton production facilitating quick switching according to claim 1, wherein the switching drive member includes a first gear (14) provided at an end of a switching fixing shaft, the first gear (14) is engaged with a third gear (33), the third gear (33) is engaged with a second gear (31), and the second gear (31) is provided at an output end of the driving motor (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645333.6A CN114291619B (en) | 2021-12-30 | 2021-12-30 | Paper feeding device convenient to fast switch over for carton production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645333.6A CN114291619B (en) | 2021-12-30 | 2021-12-30 | Paper feeding device convenient to fast switch over for carton production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114291619A true CN114291619A (en) | 2022-04-08 |
| CN114291619B CN114291619B (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111645333.6A Active CN114291619B (en) | 2021-12-30 | 2021-12-30 | Paper feeding device convenient to fast switch over for carton production |
Country Status (1)
| Country | Link |
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| CN (1) | CN114291619B (en) |
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| CN206336822U (en) * | 2016-12-30 | 2017-07-18 | 泗水勇嘉包装印刷有限公司 | Packaging film winds adhering device |
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| CN208323470U (en) * | 2018-05-03 | 2019-01-04 | 安徽路政通新材料科技有限公司 | A kind of reflective membrane outlet end automatic winding shearing equipment |
| CN109436962A (en) * | 2018-10-11 | 2019-03-08 | 阜阳鑫合服饰有限公司 | A kind of distribution machine |
| CN209193155U (en) * | 2018-11-23 | 2019-08-02 | 洛阳泰盟机械制造有限公司 | A kind of aluminium foil re-reeler pinch roller and uncoiling guide plate arrangement |
| CN111252596A (en) * | 2020-04-09 | 2020-06-09 | 吉林长白山包装材料有限公司 | V-shaped carrier roller device for loading and unloading winding shaft |
| CN211034548U (en) * | 2019-05-15 | 2020-07-17 | 默尔克机器工业(苏州)有限公司 | Automatic feeding device for metal coiled materials |
| CN111689276A (en) * | 2019-03-12 | 2020-09-22 | 宁德时代新能源科技股份有限公司 | Unwinding device and unwinding equipment |
| CN212402841U (en) * | 2020-03-20 | 2021-01-26 | 山东麦肯金属材料有限公司 | Aluminum coil unwinding device convenient for replacing aluminum coil |
| CN214827652U (en) * | 2021-06-15 | 2021-11-23 | 昆山颂真精密五金有限公司 | Cooling fin raw material disc belt feeding device |
-
2021
- 2021-12-30 CN CN202111645333.6A patent/CN114291619B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206336822U (en) * | 2016-12-30 | 2017-07-18 | 泗水勇嘉包装印刷有限公司 | Packaging film winds adhering device |
| CN207293828U (en) * | 2017-10-18 | 2018-05-01 | 广东大禹九鼎防水科技有限公司 | A kind of automatic air-expanding shaft wrap-up |
| CN107738937A (en) * | 2017-12-11 | 2018-02-27 | 许昌烟草机械有限责任公司 | One kind packaging automatic decoiling equipment of paper disc |
| CN208323470U (en) * | 2018-05-03 | 2019-01-04 | 安徽路政通新材料科技有限公司 | A kind of reflective membrane outlet end automatic winding shearing equipment |
| CN109436962A (en) * | 2018-10-11 | 2019-03-08 | 阜阳鑫合服饰有限公司 | A kind of distribution machine |
| CN209193155U (en) * | 2018-11-23 | 2019-08-02 | 洛阳泰盟机械制造有限公司 | A kind of aluminium foil re-reeler pinch roller and uncoiling guide plate arrangement |
| CN111689276A (en) * | 2019-03-12 | 2020-09-22 | 宁德时代新能源科技股份有限公司 | Unwinding device and unwinding equipment |
| CN211034548U (en) * | 2019-05-15 | 2020-07-17 | 默尔克机器工业(苏州)有限公司 | Automatic feeding device for metal coiled materials |
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| CN111252596A (en) * | 2020-04-09 | 2020-06-09 | 吉林长白山包装材料有限公司 | V-shaped carrier roller device for loading and unloading winding shaft |
| CN214827652U (en) * | 2021-06-15 | 2021-11-23 | 昆山颂真精密五金有限公司 | Cooling fin raw material disc belt feeding device |
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| CN114291619B (en) | 2024-04-30 |
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