CN108312733B - Heavy stapler - Google Patents
Heavy stapler Download PDFInfo
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- CN108312733B CN108312733B CN201810250783.7A CN201810250783A CN108312733B CN 108312733 B CN108312733 B CN 108312733B CN 201810250783 A CN201810250783 A CN 201810250783A CN 108312733 B CN108312733 B CN 108312733B
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- transverse
- longitudinal
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- connecting rod
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
- B42B5/00—Permanently attaching together sheets, quires or signatures otherwise than by stitching
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention discloses a heavy stapler, and belongs to the field of work offices. Comprises a stapler pressing handle, a box body, a rotary table, a pressing plate, a longitudinal pushing beam and a transverse pushing beam; a rotary table and a stapler pressing handle are arranged at the top of the box body, baffle plates are arranged at four corners of the rotary table, lock catches are arranged on the baffle plates, and a pressing plate is arranged in the middle of the baffle plates; the lower part of the rotary table is provided with a rotary shaft, the middle part of the rotary shaft is provided with a bevel gear pair meshed with a bevel gear on the transverse rotary rod, and the lower part of the rotary shaft extends into a circular groove of the propelling seat to be in interference fit with the bearing; the lower part of the pushing seat is provided with a vertical limit roller and a horizontal limit roller which are matched with the longitudinal pushing beam, and the front ends of the pushing seat and the longitudinal pushing beam are respectively provided with a connecting rod pin and a connecting rod for connection; one end of the longitudinal pushing rod is connected with the connecting rod, the other end of the longitudinal pushing rod is fixed with the longitudinal pushing handle, the bottom of the longitudinal pushing beam is provided with vertical limit idler wheels matched with the transverse pushing beam, and the right side of the longitudinal pushing beam and the end part of the transverse pushing beam are provided with connecting rod pins and connecting rods for connection; one end of the transverse pushing rod is connected with the connecting rod, and the other end of the transverse pushing rod is fixed with the transverse pushing handle.
Description
Technical Field
The invention relates to the field of work office, in particular to a rotary push type heavy stapler.
Background
The conventional common work office staplers are roughly divided into a common stapler, a heavy-duty stapler and an electric stapler, wherein the electric stapler adopts a motor to replace manpower, and the binding effect is not greatly different from that of the common stapler, has a complex structure, is complex to operate and is not practical; two other types of staplers are more common, and use the principle of increasing the surface area of the pressing handle to reduce the pressure, and making the staple legs very sharp to increase the pressure. Heavy staplers are an extension of conventional staplers in which no more than 20 sheets of paper are stapled, with staples 10#, 12#, 14#. Over 20 sheets, the stapler is difficult to fully bind and bind neatly. While the binding needle of the heavy-duty stapler uses 23/6 and 23/13, the binding paper is more than 100 sheets, which is greatly superior to the common stapler.
Although the heavy stapler greatly increases the binding of paper sheets, the problem that the stapling is not attractive and tidy when the number of the paper sheets is large, the stapling is not in place, the paper sheets are easy to misplace when being delivered, and the stapler is damaged still exists. The rotary push type stapler provided by the invention can limit the paper vertically, longitudinally and transversely, ensures that the paper is not misplaced and scattered, can arbitrarily change the binding position and binding direction, can bind any side of the paper, can integrally push the paper longitudinally and transversely by 360 degrees, is convenient to operate, improves the binding efficiency and binding effect, saves time, and brings great convenience to daily work and office work.
Disclosure of Invention
The invention aims to provide a heavy stapler which can effectively solve the problems that when more paper sheets are bound, the stapling is not attractive and tidy, the stapling is not in place, the paper sheets are easy to misplace when delivered, and the stapler is damaged.
The aim of the invention is realized by the following technical scheme: a heavy stapler comprises a stapler pressing handle, a rotary table and a binding mechanism, wherein the rotary table is arranged at the top of a box body, the stapler pressing handle is arranged at one side of the box body, baffle plates are arranged at four corners of the rotary table, longitudinal and transverse lock catches are arranged on the periphery of the baffle plates in a diagonal manner, and a pressing plate is arranged in the middle of the baffle plates; the lower part of the rotary table is provided with a rotary shaft, the middle part of the rotary shaft is provided with a bevel gear pair meshed with a bevel gear on a transverse rotary rod, one end of the transverse rotary rod with the bevel gear is fixed with the propelling seat through a support, the other end of the transverse rotary rod penetrates out of the box wall of the box body to be fixed with the crank, and the lower part of the rotary shaft stretches into a circular groove at the top of the propelling seat to be in interference fit with the bearing inner ring; the lower part of the propelling seat is provided with a vertical limiting roller matched with arc grooves at the top of the longitudinal propelling beam and arc grooves at the two sides of the longitudinal propelling beam, the front ends of the propelling seat and the longitudinal propelling beam are respectively provided with a longitudinal connecting rod seat, the side surfaces of the longitudinal connecting rod seats are respectively provided with a transverse connecting rod pin which is transversely arranged, the two transverse connecting rod pins are connected with one end of a first connecting rod, the other end of the first connecting rod is jointly hinged with one end of the longitudinal propelling rod, the other end of the longitudinal propelling rod is fixed with a longitudinal propelling handle, the bottom of the longitudinal propelling beam is provided with a vertical limiting roller matched with arc grooves at the top of the two sides of the transverse propelling beam and a transverse connecting rod seat matched with arc grooves at the two sides of the transverse propelling beam, the right side of the longitudinal propelling beam and the end of the transverse propelling beam are respectively provided with a transverse connecting rod seat, the side surfaces of the transverse connecting rod seat are respectively provided with a longitudinal connecting rod pin which is longitudinally arranged, the two longitudinal connecting rod pins are connected with one end of a second connecting rod, the other end of the second connecting rod is jointly hinged with one end of the transverse propelling rod, and the other end of the transverse propelling rod is fixed with the transverse propelling handle.
The top of the box body is provided with a chute, and the rotating shaft penetrates through the chute; the end of the box body is provided with a detachable cover plate, the detachable cover plate is provided with a hole matched with the transverse pushing rod, the left side plate is provided with a hole matched with the longitudinal pushing rod, and the right side plate is provided with a groove matched with the transverse rotating rod.
The transverse propelling beam is fixed on the bottom plate of the box body.
The circular groove at the top of the propulsion seat is in interference fit with the outer ring of the bearing; the longitudinal pushing rod, the transverse pushing rod and the transverse rotating rod are all provided with fixing brackets. The pressing plate is of a structure with four concave sides and four convex corners and is used for pressing paper.
The first connecting rod and the second connecting rod are both of two-rod common-end hinge structures, and the hinge parts of the first connecting rod and the second connecting rod are respectively hinged with the end parts of the longitudinal pushing rod and the transverse pushing rod.
Further, the turntable is of a rectangular structure, the four corners of the turntable are provided with baffle plates, longitudinal and transverse lock catches are respectively arranged on diagonal lines of the baffle plates, and the baffle plates compress the pressing plates to vertically limit paper; the bottom of the rotary table is provided with a rotary shaft, the middle part of the rotary shaft is provided with a bevel gear pair meshed with a bevel gear on the transverse rotary rod, the lower part of the rotary shaft stretches into the bearing inner ring in the circular groove of the pushing seat in interference fit, the crank is rocked to drive the bevel gear to rotate, and the rotary shaft rotates together with the rotary table, paper and the pressing plate.
The pushing seat is provided with a circular groove, a bearing is arranged in the circular groove, the outer ring of the bearing is in interference fit with the circular groove, the bottom of the pushing seat is provided with a vertical limiting roller and a horizontal limiting roller, and five degrees of freedom of the pushing seat are limited, so that the pushing seat can only reciprocate on the longitudinal pushing beam. The end of the pushing seat is provided with a transverse connecting rod pin which is connected with a connecting rod I, the longitudinal pushing handle is rocked, the connecting rod I is driven by the longitudinal pushing rod to move, the connecting rod drives the pushing seat to reciprocate on the longitudinal pushing beam, and meanwhile, the pushing seat reciprocates together with the rotating shaft, the rotating disc, the paper and the pressing plate. The bottom of the longitudinal propelling beam is provided with a vertical limiting roller and a vertical limiting roller of the longitudinal propelling beam, and five degrees of freedom of the longitudinal propelling beam are limited, so that the longitudinal propelling beam can only reciprocate on the transverse propelling beam, and the right side of the longitudinal propelling beam and the end part of the transverse propelling beam are provided with a longitudinal connecting rod pin and a connecting rod II which are connected; and the transverse pushing handle is rocked, the transverse pushing rod drives the connecting rod II to move, the connecting rod II drives the longitudinal pushing beam to reciprocate on the transverse pushing beam, and the pushing seat, the rotating shaft, the rotating disc, the paper and the pressing plate reciprocate at the same time.
The heavy stapler is characterized in that the rotary table drives the paper to reciprocate and is of a rotatable structure, the paper can be limited vertically, longitudinally and transversely, the paper is prevented from dislocation and scattering, the binding position and the binding direction can be changed randomly, any side of the paper can be bound, 360-degree rotation can be achieved, the longitudinal direction and the transverse direction can be integrally pushed, the operation is simple and convenient, the binding efficiency and the binding effect are improved, the time is saved, and great convenience is brought to daily work and office work.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a cross-sectional view of the overall structure of the present invention;
FIG. 4 is a schematic view of the structure of the in-box mechanism of the present invention;
FIG. 5 is a schematic view of the turntable and propulsion base structure of the present invention;
FIG. 6 is a schematic view of a longitudinal and transverse feed beam structure according to the present invention;
FIG. 7 is a schematic view of a propulsion seat according to the present invention;
FIG. 8 is a schematic view of a platen structure of the present invention;
FIG. 9 is a schematic view of a latch structure according to the present invention;
Detailed Description
As shown in fig. 1, the heavy-duty stapler comprises a stapler pressing handle 1, a rotary table 4 and a staple binding mechanism, wherein the rotary table 4 is arranged at the top of a box body 2, the stapler pressing handle 1 is arranged at one side, baffles are arranged at four corners of the rotary table 4, longitudinal and transverse lock catches 6 are arranged at the periphery of the baffles in diagonal lines, and a pressing plate 5 is arranged at the middle part of the baffles; the lower part of the rotary table is provided with a rotary shaft 11, the middle part of the rotary shaft is provided with a bevel gear pair 12 meshed with a bevel gear on a transverse rotary rod 21, one end of the transverse rotary rod 21 with the bevel gear is fixed with a pushing seat 14 through a support, the other end penetrates out of the box wall and is fixed with a crank 9, and the lower part of the rotary shaft 11 stretches into a circular groove 17 at the top of the pushing seat to be in interference fit with the inner ring of a bearing 13; the lower part of the pushing seat 14 is provided with a vertical limiting roller 29 matched with arc grooves at the top of the longitudinal pushing beam 16 and a horizontal limiting roller 15 matched with arc grooves at two sides of the longitudinal pushing beam (16), the front ends of the pushing seat 14 and the longitudinal pushing beam 16 are respectively provided with a longitudinal connecting rod seat, the side surfaces of the longitudinal connecting rod seats are respectively provided with a transverse connecting rod pin 18 which is transversely arranged, the two transverse connecting rod pins 18 are respectively connected with one end of a connecting rod I26, the other end of the connecting rod I26 is hinged with one end of a longitudinal pushing rod 20 together, the other end of the longitudinal pushing rod 20 is fixed with a longitudinal pushing handle 8, the bottom of the longitudinal pushing beam 16 is provided with a vertical limiting roller 30 matched with arc grooves at the top of the transverse pushing beam 24 and a longitudinal limiting roller 27 matched with arc grooves at two sides of the transverse pushing beam 24, the right side of the longitudinal pushing beam 16 and the end of the transverse pushing beam 24 are respectively provided with a transverse connecting rod seat, the side surfaces of the transverse connecting rod seats are respectively provided with a longitudinal connecting rod pin 28 which is longitudinally arranged, the two longitudinal connecting rod pins 28 are respectively connected with one end of a connecting rod II 19, the other end of the connecting rod II 19 is hinged with one end of the transverse pushing rod 23 together, and the other end of the transverse pushing rod 23 is fixed with the transverse pushing handle 25. The top of the box body is provided with a chute 10, and a rotating shaft 11 passes through the chute; the end of the box body 2 is provided with a detachable cover plate 3, the detachable cover plate 3 is provided with a hole matched with the transverse pushing rod 23, the left side plate is provided with a hole matched with the longitudinal pushing rod 20, and the right side plate is provided with a groove matched with the transverse rotating rod 21. The transverse pushing beams 24 are fixed on the bottom plate of the box body. The circular groove 17 at the top of the propulsion seat 14 is in interference fit with the outer ring of the bearing 13; the longitudinal pushing rod 20, the transverse pushing rod 23 and the transverse rotating rod 21 are all provided with a fixed bracket 22. The pressing plate 5 is of a structure with four concave sides and four convex corners and is used for pressing paper.
Further, the turntable 4 has a rectangular structure, the four corners of the turntable are provided with baffle plates, longitudinal and transverse lock catches 6 are respectively arranged on diagonal lines of the baffle plates, and the baffle plates compress the pressing plates 5 to vertically limit the paper 7; the bottom of the rotary table 4 is provided with a rotary shaft 11, the middle part of the rotary shaft 11 is provided with a bevel gear pair 12 meshed with a bevel gear on a transverse rotary rod 21, the crank 9 is rocked to drive the bevel gear to rotate, and the rotary shaft 11 rotates together with the rotary table 4, paper and the pressing plate 5. The pushing seat 14 is provided with a circular groove 10, a bearing is arranged in the circular groove 17, the outer ring of the bearing 13 is in interference fit with the circular groove 17, the bottom of the pushing seat 14 is provided with a vertical limiting roller 29 and a horizontal limiting roller 15, and five degrees of freedom of the pushing seat 14 are limited, so that the pushing seat can only reciprocate on the longitudinal pushing beam 16. The end of the pushing seat 14 is provided with a transverse link pin 18 connected with a first link rod 26, the longitudinal pushing handle 8 is rocked, the first link rod 26 is driven by the longitudinal pushing rod 20 to move, the first link rod 26 drives the pushing seat 14 to reciprocate on the longitudinal pushing beam 16, and meanwhile, the pushing seat 14 reciprocates together with the rotating shaft 11, the rotating disc 4, the paper 7 and the pressing plate 5. The bottom of the longitudinal pushing beam 16 is provided with a longitudinal pushing beam vertical limit roller 30 and a longitudinal limit roller 27, and five degrees of freedom of the longitudinal pushing beam 16 are limited, so that the longitudinal pushing beam can only reciprocate on the transverse pushing beam 24, and the right side of the longitudinal pushing beam 16 and the end part of the transverse pushing beam 24 are provided with a longitudinal connecting rod pin 28 and a connecting rod II 19 which are connected; the transverse pushing handle 25 is rocked, the transverse pushing rod 23 drives the second connecting rod 19 to move, the second connecting rod 19 drives the longitudinal pushing beam 16 to reciprocate on the transverse pushing beam 24, and the pushing seat 14 reciprocates together with the rotating shaft 11, the rotating disc 4, the paper 7 and the pressing plate 5.
The rotary push type heavy stapler is a structure that the rotary plate drives the paper to reciprocate and rotate, can limit the paper vertically, longitudinally and transversely, ensures that the paper cannot be misplaced and scattered, can randomly change the binding position and the binding direction, can bind any side of the paper, rotates by 360 degrees, can integrally push the paper longitudinally and transversely, is omnidirectionally bound, is simple and convenient to operate, improves the binding efficiency and the binding effect, saves time, and brings great convenience to daily work and office work. When the paper binding machine is used, paper is placed in the turntable, the baffles at the four corners of the turntable are used for transversely and longitudinally limiting the paper, then the pressing plate is covered on the paper to fasten the lock catch, the lock catch is used for vertically limiting the paper, and therefore the paper is tightly fixed in the turntable, and the problems of dislocation, scattering and irregular binding cannot occur. The longitudinal pushing handle is rocked, the longitudinal pushing rod drives the first connecting rod to move, the connecting rod drives the pushing seat to reciprocate on the longitudinal pushing beam, and meanwhile, the pushing seat reciprocates together with the rotating shaft, the rotating disc, the paper and the pressing plate; the longitudinal position of the paper to be bound can be adjusted by adjusting the position of the longitudinal pushing handle, so that the paper is accurately positioned. The transverse pushing handle is rocked, the transverse pushing rod drives the connecting rod II to move, the connecting rod II drives the longitudinal pushing beam to reciprocate on the transverse pushing beam, and the pushing seat, the rotating shaft, the rotating disc, the paper and the pressing plate reciprocate at the same time; the position of the transverse pushing handle is adjusted to adjust the transverse position of the paper to be bound, so that the paper is accurately positioned. In addition, the crank is rocked, the transverse rotating rod drives the bevel gear to rotate, the rotating shaft rotates together with the rotary table, the paper and the pressing plate, the position of the crank can be adjusted to bind any side, any angle is rotated by 360 degrees, the longitudinal and transverse directions are integrally pushed, the omnibearing binding is realized, the operation is simple and convenient, the lock catch is opened after the binding is finished, and the bound paper is taken out.
The described embodiments of the invention should not be construed as limiting the scope of the present application, but any modifications, equivalent substitutions and improvements that can be made by those skilled in the art are intended to be included within the scope of the present invention, which is defined by the appended claims.
Claims (5)
1. The utility model provides a heavy stapler, includes stapler press handle (1), carousel (4) and binding mechanism, and box (2) top is equipped with carousel (4), and one side is equipped with stapler press handle (1), its characterized in that: the four corners of the turntable (4) are provided with baffle plates, the peripheries of the baffle plates are provided with longitudinal and transverse lock catches (6) in diagonal lines, and the middle part of the baffle plates is provided with a pressing plate (5); a rotating shaft (11) is arranged at the lower part of the rotating disc (4), a bevel gear pair (12) meshed with a bevel gear on a transverse rotating rod (21) is arranged at the middle part of the rotating shaft (11), one end of the transverse rotating rod (21) with the bevel gear is fixed with a pushing seat (14) through a support, the other end of the transverse rotating rod penetrates out of the wall of the box body (2) and is fixed with a crank (9), and the lower part of the rotating shaft (11) stretches into a circular groove (17) at the top of the pushing seat (14) to be in interference fit with the inner ring of a bearing (13); the lower part of the propelling seat (14) is provided with a vertical limiting roller (29) matched with the arc grooves at the top of the longitudinal propelling beam (16) and a transverse limiting roller (15) matched with the arc grooves at the two sides of the longitudinal propelling beam (16); the bottom plate of the box body (2) is provided with a transverse pushing beam (24), the top of the box body is provided with a sliding groove (10), the top end of the rotating shaft (11) penetrates through the sliding groove (10), the end part of the box body (2) is provided with a detachable cover plate (3), the detachable cover plate (3) is provided with a hole matched with the transverse pushing rod (23), the left side plate is provided with a hole matched with the longitudinal pushing rod (20), and the right side plate is provided with a groove matched with the transverse rotating rod (21);
the front ends of the propulsion seat (14) and the longitudinal propulsion beam (16) are respectively provided with a longitudinal connecting rod seat, the side surfaces of the longitudinal connecting rod seats are provided with transverse connecting rod pins (18) which are transversely arranged, the two transverse connecting rod pins (18) are connected with one end of a first connecting rod (26), the other end of the first connecting rod (26) is hinged with one end of a longitudinal propulsion rod (20), and the other end of the longitudinal propulsion rod (20) is fixed with a longitudinal propulsion handle (8); the bottom of vertical propulsion roof beam (16) is equipped with vertical spacing gyro wheel (30) and horizontal propulsion roof beam (24) both sides complex vertical spacing gyro wheel (27) with horizontal propulsion roof beam (24) top arc groove complex, and vertical propulsion roof beam (16) right side and horizontal propulsion roof beam (24) tip all are equipped with the connecting rod seat, and this connecting rod seat side is equipped with vertical connecting rod round pin (28) of vertical setting, and two vertical connecting rod round pins (28) all link to each other with the one end of connecting rod two (19), and the other end of connecting rod two (19) articulates with horizontal propulsion handle (25) jointly, and the other end of horizontal propulsion handle (23) is fixed with horizontal propulsion handle (25).
2. The heavy stapler as recited in claim 1, wherein the first and second links (26, 19) are two-bar co-terminal hinge structures, and the hinge portions are hinged to the ends of the longitudinal pushing bar (20) and the transverse pushing bar (23), respectively.
3. A heavy duty stapler according to claim 1, characterised in that the circular groove (17) in the top of the propulsion seat (14) is in an interference fit with the outer ring of the bearing (13).
4. A heavy duty stapler according to claim 1, characterized in that the longitudinal pushing bar (20), the transverse pushing bar (23) and the transverse rotating bar (21) are provided with a fixed bracket (22).
5. A heavy duty stapler according to claim 1, characterized in that the pressing plate (5) has a structure with four concave sides and four convex corners, and paper (7) is arranged below the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250783.7A CN108312733B (en) | 2018-03-26 | 2018-03-26 | Heavy stapler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250783.7A CN108312733B (en) | 2018-03-26 | 2018-03-26 | Heavy stapler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108312733A CN108312733A (en) | 2018-07-24 |
| CN108312733B true CN108312733B (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810250783.7A Active CN108312733B (en) | 2018-03-26 | 2018-03-26 | Heavy stapler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108312733B (en) |
Citations (3)
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| WO2003038530A1 (en) * | 2001-10-31 | 2003-05-08 | Krdc Co., Ltd. | Stapler moving guide device |
| JP2006255941A (en) * | 2005-03-15 | 2006-09-28 | Tokyo Shuppan Kikai Kk | Milling device of convexly recessed part forming non-pasting-wanted part on back of signature before bookbinding in converting device of perfect binding machine for bookbinding |
| CN203125473U (en) * | 2013-04-02 | 2013-08-14 | 东华理工大学 | Three-jaw type paper binding machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB462994A (en) * | 1935-10-19 | 1937-03-19 | Longmans Green & Company Ltd | Improvements in or relating to book-binders' wrappering or covering machines |
| JP2011131444A (en) * | 2009-12-23 | 2011-07-07 | Max Co Ltd | Stapler for saddle stitching |
| JP2014226930A (en) * | 2013-05-21 | 2014-12-08 | 株式会社ウェッジ | Bookbinding device |
| CN204936544U (en) * | 2015-08-24 | 2016-01-06 | 南京亚润科技有限公司 | A kind of binder conduction rubber cushion self-turning mechanism |
| CN207059545U (en) * | 2017-06-21 | 2018-03-02 | 兰溪市蓝科机械有限公司 | A kind of hay stacker on book bookbinding structure |
| CN107757174B (en) * | 2017-08-31 | 2019-09-10 | 江苏理工学院 | Paper bookbinding machine |
| CN208069155U (en) * | 2018-03-26 | 2018-11-09 | 西南交通大学 | A kind of heavy type stapler |
-
2018
- 2018-03-26 CN CN201810250783.7A patent/CN108312733B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003038530A1 (en) * | 2001-10-31 | 2003-05-08 | Krdc Co., Ltd. | Stapler moving guide device |
| JP2006255941A (en) * | 2005-03-15 | 2006-09-28 | Tokyo Shuppan Kikai Kk | Milling device of convexly recessed part forming non-pasting-wanted part on back of signature before bookbinding in converting device of perfect binding machine for bookbinding |
| CN203125473U (en) * | 2013-04-02 | 2013-08-14 | 东华理工大学 | Three-jaw type paper binding machine |
Non-Patent Citations (1)
| Title |
|---|
| 基于后压式省力杠杆机构设计的订书机;张兆珩;李相俊;张灿;邹晓宇;刘锦;;中国高新技术企业(第12期);全文 * |
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| Publication number | Publication date |
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| CN108312733A (en) | 2018-07-24 |
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