CN109552911B - Paper positioning mechanism of manuscript conveyer - Google Patents
Paper positioning mechanism of manuscript conveyer Download PDFInfo
- Publication number
- CN109552911B CN109552911B CN201811564736.6A CN201811564736A CN109552911B CN 109552911 B CN109552911 B CN 109552911B CN 201811564736 A CN201811564736 A CN 201811564736A CN 109552911 B CN109552911 B CN 109552911B
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- China
- Prior art keywords
- paper
- positioning mechanism
- lifting
- pushing mechanism
- baffle plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/04—Fixed or adjustable stops or gauges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1131—Size of sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pile Receivers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
The invention relates to the technical field of movable positioning mechanisms, in particular to a paper positioning mechanism of a manuscript conveyor, which comprises a positioning mechanism and a driving mechanism, wherein the positioning mechanism comprises a left baffle and a right baffle which are driven to move in opposite directions when the paper placing position is skewed; a hollow lifting channel is arranged in the middle of the paper placing table; a rotatable lifting table is arranged in the lifting channel; the paper positioning mechanism further comprises a first pushing mechanism linked with the right baffle plate and a second pushing mechanism linked with the first pushing mechanism; the first pushing mechanism drives the second pushing mechanism to push the lifting table upwards when the right baffle plate pushes the paper stack. The invention can effectively solve the problem of correction of the placement position of the paper stack.
Description
Technical Field
The invention relates to the technical field of movable positioning mechanisms, in particular to a paper positioning mechanism of a manuscript conveyor.
Background
A document feeder is a device for automatically feeding sheets. The manuscript carrier is generally provided with a paper placing table for placing paper and an expanding table which is arranged at two sides of the paper placing table and is parallel to the top surface of the paper placing table; the extension table is provided with a paper positioning mechanism for transversely positioning paper on the paper placing table. The paper positioning mechanism generally comprises two baffles which are respectively arranged at two sides of the paper placing table, and the two baffles can move on the paper placing table in opposite directions. When the paper placed on the paper placing table is skewed, two baffles in the paper positioning mechanism move in opposite directions, so that the two baffles push the middle paper together, and the paper is pushed back to a limiting position in the transverse direction, thereby realizing transverse positioning.
The existing paper positioning mechanism of the manuscript conveyer can correct the single paper placing position, but for more than a certain number of papers, the paper positioning mechanism can not overcome the friction force between the papers and the paper placing table to push the papers to return to the correct placing position. This is very disadvantageous for large-batch paper transport operations.
Disclosure of Invention
The invention provides a paper positioning mechanism of a manuscript conveyor, which solves the problem that the existing paper positioning mechanism of the manuscript conveyor cannot correct the placement position of a paper stack when the paper reaches a certain number to form the paper stack.
The following scheme is provided for solving the problems:
the paper positioning mechanism of the manuscript conveyer comprises a paper placing table for placing paper stacks; extension tables which are flush with the top surface of the paper placing table are arranged on two sides of the paper placing table; the expansion table is provided with a paper positioning mechanism; the paper positioning mechanism comprises a left baffle and a right baffle which are symmetrically arranged at two sides of the paper placing table; the paper positioning mechanism comprises a driving mechanism for driving the left baffle plate and the right baffle plate to move in opposite directions when the paper stack placement position is skewed;
a hollow lifting channel is arranged in the middle of the paper placing table; a rotatable lifting table is arranged in the lifting channel;
the paper positioning mechanism further comprises a first pushing mechanism linked with the right baffle plate and a second pushing mechanism linked with the first pushing mechanism; the first pushing mechanism drives the second pushing mechanism to push the lifting table upwards when the right baffle plate pushes the paper stack.
Noun interpretation:
paper stack: refers to a neat stacking structure formed by stacking a plurality of papers, namely a stack of papers or a log of papers.
The advantage of this scheme lies in:
the paper positioning mechanism in this scheme, through first pushing mechanism and the second pushing mechanism of linking with right baffle, make right baffle when promoting the paper buttress, increase the holding power to the paper buttress through first pushing mechanism and second pushing mechanism, reduce the pressure of paper buttress to the elevating platform, and then reduce the frictional force between paper buttress and the elevating platform. Meanwhile, the lifting table is rotatable, so that the resistance for pushing the paper stack to move is further reduced, and the positions of the paper stack can be corrected by the left baffle plate and the right baffle plate.
According to the scheme, the lifting table is lifted through the reaction force between the paper stack and the right baffle, so that the lifting table is compared with other parts of the paper placing table, the weight of the paper stack is mainly shared, and meanwhile, the lifting table is utilized to rotate and connect the paper stack, so that the left baffle and the right baffle can be pushed back to the correct positions by utilizing the existing driving mechanism under the action of not increasing the driving force. The scheme effectively avoids the damage of the driving mechanism and the left baffle and the right baffle caused by excessive force.
The problem that current manuscript carrier paper positioning mechanism can't revise its position of placing when the paper reaches a certain quantity has effectively been solved to this scheme. The paper conveying operation can be carried out on a large scale by utilizing the paper positioning mechanism of the manuscript conveyor, which is beneficial to meeting the requirement of large paper.
Further, a cavity is formed in one side, close to the lifting table, of the right baffle plate; the first pushing mechanism comprises an elastic bag loaded with fluid and a connecting pipe communicated with the elastic bag; the elastic bag is arranged in the cavity; the second pushing mechanism comprises a second push rod movably connected with the lifting platform, a second piston fixedly connected with the second push rod and a cylinder body communicated with the connecting pipe; the second piston is arranged in the cylinder body.
The first pushing mechanism and the second pushing mechanism are linked through the connecting pipe, so that when the right baffle plate pushes the paper stack, the elastic bag in the extrusion cavity deforms to extrude the fluid in the elastic bag to flow to the cylinder body of the second pushing mechanism through the connecting pipe. The second piston and the second push rod are pushed upwards by the fluid, so that the lifting platform transmits upward supporting force to the paper stack, the pressure between the paper stack and the lifting platform is reduced, and the resistance of the paper stack to being pushed is reduced. The device is simple in structure, and can reasonably utilize the collision between the right baffle plate and the paper stack, so that the first pushing mechanism drives the second pushing mechanism, friction between the paper stack and the lifting table is reduced, and further resistance of the left baffle plate and the right baffle plate for correcting the paper stack is reduced.
Further, a bearing is connected between the top end of the second push rod and the lifting platform.
The movable connection between the second push rod and the lifting platform is realized through the bearing, so that the lifting platform can horizontally rotate around the push rod when the lifting platform is supported by the second push rod, and the resistance for correcting the position of the paper stack is reduced.
Further, the fluid in the elastic bag is gas or liquid; the second pushing mechanism is an air cylinder or a hydraulic cylinder.
The cylinder or the hydraulic cylinder is a common power mechanism.
Further, the top surface area of the lifting table is smaller than one half of the top surface area of the paper placing table.
The lifting table and the paper placing table together form a table top for placing the paper stack, and the top surfaces of the lifting table and the paper placing table are contact surfaces which are directly contacted with the paper stack. The top surface area of the lifting platform is limited, the area supported by the second push rod and the boundary position where the paper stack can deform are limited, the top surface area of the lifting platform is limited to be smaller than one half of the top surface area of the paper stack placing platform, the paper stack is pushed upwards, friction between the paper stack and the lifting platform is reduced, meanwhile, the resistance of pushing the paper stack by the left baffle plate and the right baffle plate is further reduced through the movable connection characteristic of the lifting platform, and the original driving force is effectively utilized to correct the paper stack to a correct placing position. The arrangement can fully ensure the stability of the placement of the paper stack, and avoid the placement position of the paper stack from becoming uneven in the process of the rotation of the paper stack along with the lifting table.
Further, the heights of the left baffle plate and the right baffle plate are larger than 10 cm.
Because the paper stacks to be pushed and corrected are a certain number to form the paper stacks, the left baffle plate and the right baffle plate need to have a certain height, and the height is set to be more than 10 cm, so that the minimum requirement for conveying the paper stacks in a large scale can be met.
Further, the difference in length between the diameter of the top surface of the lifting channel and the diameter of the top surface of the lifting platform is less than 1 cm.
The diameter length difference between the lifting channel and the lifting table, namely the gap size on the whole table surface when the lifting table is flush with the top surface of the paper placing table. The width of the gap is set to be smaller than 1 cm, so that the influence on the supporting effect of the paper stack can be effectively reduced, the paper stack can be stably placed on the whole table top, and the influence on the subsequent conveying operation is avoided.
Drawings
Fig. 1 is a top view of a document feeder sheet positioning mechanism according to an embodiment of the present invention.
Fig. 2 is a schematic view of the structure of the stack of sheets of fig. 1.
Fig. 3 is a cross-sectional view of a transverse center line of a document feeder sheet positioning mechanism in accordance with one embodiment of the present invention.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: a paper placing table 1, a lifting channel 10, a lifting table 11, a paper stack 12, an expanding table 2, a left baffle 3, a right baffle 4, an elastic bag 51, a connecting pipe 53, a second push rod 61 and a second piston 62.
Example 1
As shown in fig. 1 and 2, the document feeder paper positioning mechanism in the present embodiment includes a horizontally arranged paper placing table 1 for placing a paper stack 12; a lifting channel 10 with a circular top surface area is arranged in the middle of the paper placing table 1. A lift table 11 coaxial with the lift path 10 is installed in the lift path 10. The center of the top surfaces of the lifting table 11 and the lifting channel 10 is the center point of the whole paper placing table 1. The two sides of the paper placing table 1 are provided with an expansion table 2 which is flush with the table top of the paper placing table 1, the table top of the expansion table 2 is provided with a left baffle plate 3 and a right baffle plate 4 which are used for moving in opposite directions, the left baffle plate 3 and the right baffle plate 4 are respectively arranged on two sides of the paper placing table 1, the left baffle plate 3 and the right baffle plate 4 are parallel to each other and are used for pushing the paper placed on the paper placing table 1 back to a correct placement position, and deflection is avoided, namely, the paper placing table is placed in a correct position.
Because the connection structure of the left baffle 3 and the right baffle 4 on the expansion table 2 and the driving mechanism for driving the left baffle 3 and the right baffle 4 to move in opposite directions are all existing, the detailed description is omitted herein, and the specific structure can refer to the baffle structure disclosed in the patent document with publication number CN 104071608A.
The top surface of the lifting channel and the top surface of the lifting table 11 are concentric circles, and the length difference between the diameter of the top surface of the lifting table 11 and the diameter of the top surface of the lifting channel is smaller than 1 cm, namely the width of an annular gap formed between the paper placing table 1 and the lifting table 11 is smaller than 1 cm. Thus, the movement of the lifting table 11 in the vertical direction is not affected, and the table top on which the paper stack 12 is placed is formed together when the top surfaces of the paper placing table 1 and the lifting table 11 are flush, so that the paper on the paper stack 12 can be placed smoothly and stably.
The top surface area of the lifting table 11 is smaller than one half of the top surface area of the paper placing table 1. In this embodiment, the top surface area of the lifting table 11 is one third of the top surface area of the paper placing table 1. The lifting table 11 and the paper placing table 1 together form a table surface for placing the paper stack 12, and the top surfaces of the lifting table 11 and the paper placing table 1 are contact surfaces which are in direct contact with the paper stack 12. The top surface area of the lifting table 11 is limited, the area supported by the second push rod 61 and the contact area for generating friction force between the paper stack 12 and the lifting table 11 are limited, the top surface area of the lifting table 11 is limited to be smaller than one half of the top surface area of the paper placing table 1, the paper stack 12 is pushed upwards, the friction force between the lifting table 11 and the paper stack 12 is reduced, meanwhile, the resistance of pushing the paper stack 12 by the left baffle 4 and the right baffle 4 is further reduced through the characteristic of rotating connection of the lifting table 11, and the original driving force is effectively utilized to correct the paper stack 12 to a correct placing position. The arrangement can also fully ensure the stability of the placement of the paper stack 12, and avoid the placement position of the paper stack 12 from becoming uneven in the process of rotating the paper stack 12 along with the lifting table 11.
The height of the left and right baffles 3, 4 in this embodiment is in the range of 10-80 cm, which can fully guarantee the positioning and transport requirements of most stacks 12. In the case where the sheet stack 12 contains a particularly large number of sheets, the heights of the left barrier 3 and the right barrier 4 may be set to 80 cm or more.
As shown in fig. 3, a cavity is opened at the center of the right baffle 4. The cavity is open on both sides close to the lifting table 11 and far from the lifting table 11. The first pushing mechanism comprises an elastic bag 51 adhered in the cavity, and two ends of the elastic bag 51 extend out of the right baffle 4 through the opening. When the right barrier 4 is pushing the stack 12, the elastic bag 51 is inevitably pressed. The elastic bladder 51 is filled with a fluid. In the present embodiment, the fluid in the elastic bag 51 is water, but may be other liquid. The right side of the elastic bag 51 is communicated with a connecting pipe 53, and the connecting pipe 53 penetrates through the table surface of the expansion table 2 and is communicated with the second pushing mechanism. The elastic bag 51 in this embodiment is made of rubber, which not only has good elasticity, but also has good strength, and can avoid the leakage of fluid during collision.
The connection pipe 53 is a flexible pipe, and a rubber pipe is used in this embodiment.
The second pushing mechanism is positioned right below the lifting table 11 and comprises a second push rod 61 movably connected with the lifting table 11, a second piston 62 fixedly connected with the second push rod 61 and a cylinder body for installing the second piston 62. The second pushing mechanism in this embodiment is a hydraulic cylinder, and the second pushing mechanism and the first pushing mechanism are in liquid transfer through the connecting pipe 53, so that the elastic bag 51 and the second piston 62 are linked, and the first pushing mechanism and the second pushing mechanism are linked.
The center position of the bottom surface of the lifting table 11 is provided with a mounting groove, a bearing is mounted in the mounting groove, the outer ring of the bearing is connected with the mounting groove through screws, and the inner ring of the bearing is connected with the top end of the second push rod 61 through screws. The second pushing mechanism is placed vertically, and the movement direction of the second push rod 61 is the vertical direction. The second push rod 61 serves to support and push up the elevating table 11. The second push rod 61 is supported by the bearing, and the lift table 11 is rotatable around the second push rod 61.
As shown in fig. 2, particularly when the alignment of the sheet bundle 12 is performed using the alignment mechanism of the present embodiment, the sheet bundle 12 is placed askew on a table surface formed by the sheet placing table 1 and the elevating table 11 together. With the prior art, the left shutter 3 and the right shutter 4 are synchronously moved toward the center of the platen 1 by the driving mechanism (the driving mechanism differs depending on the document feeder to which the document feeder paper positioning mechanism is specifically attached, which has been described above as the prior art, and may be a telescopic motor, a cylinder, a hydraulic cylinder, or the like), and it is desired to push the skewed sheet stack 12 back to the correct placement position. However, since the sheet stack 12 is formed by stacking a certain number of sheets as compared with a single sheet, the overall weight of the sheet stack 12 increases, and when the sheet stack 12 is entirely skewed, the position correction cannot be performed. Because the pressure is increased under the condition that the contact surface between the paper at the bottommost layer of the paper stack 12 and the paper placing table 1 is unchanged, the friction force between the whole paper stack 12 and the paper placing table 1 is increased, and the resistance of pushing the paper stack 12 by the left baffle plate 3 and the right baffle plate 4 is increased. This resistance also increases as the number of sheets in the stack 12 increases. At this time, the left barrier 3 and the right barrier 4 cannot push the paper stack 12 inward under the original driving force, the right barrier 4 contacts the paper stack 12, and the liquid in the squeeze elastic bag 51 enters the cylinder of the second pushing mechanism through the connecting pipe 53. The second piston 62 has an upward supporting force on the paper stack 12 under the pushing of the newly added liquid, and the supporting force counteracts the pressure exerted on the lifting table 11 by a part of the paper stack 12, so that the pressure of the paper stack 12 on the friction surface is reduced, the friction force between the paper stack 12 and the lifting table 11 is further reduced, and the resistance of the whole paper stack 12 to correction pushing is reduced. At the same time, the stack 12 and the lift table 11 are pushed to rotate together to the correct placement position because of the rotational connection characteristic of the lift table 11.
The paper positioning mechanism in the embodiment changes the extrusion force generated by the contact collision between the paper stack 12 and the right baffle 4 into the supporting force for supporting the lifting table 11 and the paper stack 12 through the first pushing mechanism and the second pushing mechanism which are linked with the right baffle 4, and effectively reduces the pressure between the paper stack 12 and the lifting table 11. In the case of a constant friction coefficient, the friction between the stack 12 and the lifting table 11 is reduced because the pressure is reduced. The lifting table 11 is in rotary connection, so that transverse resistance encountered by the left baffle 3 and the right baffle 4 when the paper stack 12 is pushed can be further effectively reduced, and the positions of the paper stack 12 can be corrected by the left baffle 3 and the right baffle 4.
The problem that the paper positioning mechanism of the existing manuscript conveyor cannot be aligned to the placement position to correct when the number of the paper stacks 12 reaches a certain number is effectively solved. The paper stack 12 conveying operation can be carried out in large batches by using the paper positioning mechanism of the manuscript conveyor, which is beneficial to meeting the requirement of large-scale paper.
Example two
The difference between the present embodiment and the first embodiment is that the fluid contained in the elastic bag 51 in the first pushing mechanism is gas, and the second pushing mechanism is a cylinder.
The foregoing is merely an embodiment of the present invention, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application day or before the priority date of the present invention, and can know all the prior art in the field, and have the capability of applying the conventional experimental means before the date, so that a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The paper positioning mechanism of the manuscript conveyer comprises a paper placing table for placing a paper stack; extension tables which are flush with the top surface of the paper placing table are arranged on two sides of the paper placing table; the expansion table is provided with a paper positioning mechanism; the paper positioning mechanism comprises a left baffle and a right baffle which are symmetrically arranged at two sides of the paper placing table; the paper positioning mechanism comprises a driving mechanism for driving the left baffle plate and the right baffle plate to move in opposite directions when the paper stack placement position is skewed; the method is characterized in that:
a hollow lifting channel is arranged in the middle of the paper placing table; a rotatable lifting table is arranged in the lifting channel;
the paper positioning mechanism further comprises a first pushing mechanism linked with the right baffle plate and a second pushing mechanism linked with the first pushing mechanism; the first pushing mechanism drives the second pushing mechanism to push the lifting table upwards when the right baffle plate pushes the paper stack.
2. The document feeder paper positioning mechanism according to claim 1, wherein: a cavity is formed in one side, close to the lifting table, of the right baffle plate; the first pushing mechanism comprises an elastic bag loaded with fluid and a connecting pipe communicated with the elastic bag; the elastic bag is arranged in the cavity; the second pushing mechanism comprises a second push rod movably connected with the lifting platform, a second piston fixedly connected with the second push rod and a cylinder body communicated with the connecting pipe; the second piston is arranged in the cylinder body.
3. The document feeder paper positioning mechanism according to claim 2, wherein: and a bearing is connected between the top end of the second push rod and the lifting platform.
4. The document feeder paper positioning mechanism according to claim 2, wherein: the fluid in the elastic bag is gas or liquid; the second pushing mechanism is an air cylinder or a hydraulic cylinder.
5. The document feeder paper positioning mechanism according to claim 1, wherein: the top surface area of the lifting table is smaller than one half of the top surface area of the paper placing table.
6. The document feeder paper positioning mechanism according to claim 1, wherein: the heights of the left baffle plate and the right baffle plate are larger than 10 cm.
7. The document feeder paper positioning mechanism according to claim 1, wherein: the length difference between the top surface diameter of the lifting channel and the top surface diameter of the lifting platform is smaller than 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564736.6A CN109552911B (en) | 2018-12-20 | 2018-12-20 | Paper positioning mechanism of manuscript conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564736.6A CN109552911B (en) | 2018-12-20 | 2018-12-20 | Paper positioning mechanism of manuscript conveyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109552911A CN109552911A (en) | 2019-04-02 |
| CN109552911B true CN109552911B (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564736.6A Active CN109552911B (en) | 2018-12-20 | 2018-12-20 | Paper positioning mechanism of manuscript conveyer |
Country Status (1)
| Country | Link |
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| CN (1) | CN109552911B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182902A (en) * | 1989-03-17 | 1993-02-02 | Murata Kikai Kabushiki Kaisha | Processing robot for a two-for-one-one twister |
| JP2894041B2 (en) * | 1991-09-18 | 1999-05-24 | 村田機械株式会社 | Automatic winder unwinding assisting device and unwinding assisting method |
| CN203889713U (en) * | 2014-06-27 | 2014-10-22 | 宁波荣华办公用品有限公司 | Paper positioning mechanism in document feeder |
| CN104071608B (en) * | 2014-06-27 | 2016-09-07 | 宁波荣华办公用品有限公司 | Paper sheet positioning mechanism in document feeder |
| CN203976059U (en) * | 2014-07-04 | 2014-12-03 | 浙江华岳包装机械有限公司 | Paper automatic piling equipment |
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2018
- 2018-12-20 CN CN201811564736.6A patent/CN109552911B/en active Active
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| CN109552911A (en) | 2019-04-02 |
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Effective date of registration: 20230704 Address after: 518100 No. 77 Tianyang 1st Road, Datianyang Industrial Zone, Dongfang Community, Songgang Street, Bao'an District, Shenzhen, Guangdong Province 101 Applicant after: Shenzhen Shunji New Materials Co.,Ltd. Address before: 563200 Loushanguan High-tech Industrial Development Zone, Tongzi County, Zunyi City, Guizhou Province Applicant before: GUIZHOU QISHIERWAN INFORMATION TECHNOLOGY CO.,LTD. |
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