Novel electric stapler

Abstract

The utility model discloses a novel electric stapler which comprises a shell, a stapling mechanism arranged at the bottom of the shell and a driving mechanism used for driving the stapling mechanism to achieve stapling action, and the shell comprises a first side plate and a second side plate. The driving mechanism comprises a motor fixed between the first side plate and the second side plate, a gear box assembly arranged at the output end of the motor and an eccentric wheel used for driving the nail pressing upper cover to move up and down, the eccentric wheel is rotatably installed in the gear box assembly, and a sensor is further arranged at the top in the box body; the electric stapler has the advantages of being simple in structure and stable and reliable in work, the stapling mechanism and the driving mechanism are both arranged between the first side plate and the second side plate, so that the whole electric stapler is more compact in structure, the eccentric wheel is driven by the motor to rotate, the pressing staple upper cover is periodically jacked by the eccentric wheel, automatic stapling action is achieved, and the stapling efficiency is improved. And the binding action of the motor is controlled by sensing the position of the eccentric wheel through the sensor, and the binding effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of office supplies, and particularly relates to a novel electric stapler. Background Art

[0002] A stapler is a tool for binding papers, cardboard, etc., and is widely used in offices, factories, and families. At present, staplers have developed from traditional manual pressing to automatic binding.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN204772393U and the name of "a pneumatic binding machine" discloses a pneumatic binding machine, which includes a workbench, at least one binding unit arranged on the workbench, and a controller for controlling the operation of the binding unit. An installation groove for installing the binding unit is arranged on the workbench, and each binding unit is provided with a connecting part matched with the installation groove. The binding unit includes a casing, a stapler, and a cylinder for driving the stapler to perform a binding action. The cylinder is connected to the controller. The stapler includes a base, a nail box and a pressing box hinged to the base. The piston rod of the cylinder is correspondingly arranged opposite to the pressing box. Both the cylinder and the base are fixedly connected to the casing, and the base extends out of the casing and is correspondingly arranged with the installation groove.

[0004] When the stapler in this patent is in use, since it needs a gas source to supply gas to the cylinder, it occupies a large space, and the stability of the air pressure is easily affected by the outside, thus affecting the binding quality and quality.

[0005] In view of this, the applicant has conducted in-depth research on the above problems, and thus this case has been generated. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a novel electric stapler with a simple structure, stable and reliable performance, and convenient use.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solution:

[0008] A new type of electric stapler, comprising a housing, a binding mechanism disposed at the bottom of the housing, and a driving mechanism for driving the binding mechanism to perform a binding action. The binding mechanism includes a base, a staple box for accommodating staples, and a pressing staple upper cover that cooperates with the staple box to press the staples out of the staple box. The housing includes a first side plate and a second side plate disposed opposite to each other, and a top plate for connecting the first side plate and the second side plate. The base is installed between the first side plate and the second side plate. The driving mechanism includes a motor fixed between the first side plate and the second side plate, a gearbox assembly disposed at the output end of the motor, and an eccentric wheel for driving the pressing staple upper cover to move up and down. The gearbox assembly includes a box body and a gear transmission assembly disposed inside the box body. The eccentric wheel is rotatably installed on the gear transmission assembly. A sensor is further provided at the top inside the box body, and the sensor is electrically connected to the motor. The sensor is correspondingly disposed above the eccentric wheel.

[0009] Further, an adjustment bolt arranged vertically is further provided on the top plate. The adjustment bolt penetrates into the housing from the top plate and abuts against the top of the box body. The adjustment bolt is disposed at a position above the staple box. A support bolt arranged horizontally penetrates through the housing corresponding to the position of the box body. One end of the support bolt sequentially passes through the first side plate, the box body, and the second side plate, and is fixed by a support nut.

[0010] Further, the gear transmission assembly includes a first helical gear installed on the output shaft of the motor, a second helical gear rotatably disposed inside the box body through a first mounting shaft, a first gear coaxially arranged with the second helical gear, and a second gear rotatably disposed inside the box body through a second mounting shaft. The first helical gear meshes with the second helical gear, the first gear meshes with the second gear. The first mounting shaft and the second mounting shaft are both arranged horizontally, the first mounting shaft is parallel to the second mounting shaft, the first helical gear is arranged horizontally and is perpendicular to the first mounting shaft, and the eccentric wheel is fixedly installed on the second mounting shaft.

[0011] Further, a third gear is rotatably disposed between the first gear and the second gear. The third gear is rotatably disposed on the box body through a third mounting shaft.

[0012] Further, a base is provided on the pressing staple upper cover. An elastic plate is connected to the base. One end of the elastic plate is a mounting end connected to the base, and the other end is a movable end that can move up and down. A bearing seat is provided at the movable end. First lugs and second lugs are provided on both sides of the bearing seat. It further includes a connecting shaft passing through the first lugs and the second lugs, and a bearing cooperating with the eccentric wheel is provided on the connecting shaft.

[0013] Further, the base is arranged in the middle of the upper cover of the pressing nail, the movable end is correspondingly arranged at a position of the elastic plate close to the nail box, and the elastic plate is locked on the base by a first screw.

[0014] Further, the base is locked on the first side plate and the second side plate by a second screw.

[0015] By adopting the foregoing design scheme, the beneficial effects of the present utility model are as follows:

[0016] The present utility model has the advantages of simple structure, stable and reliable operation. The binding mechanism and the driving mechanism are both arranged between the first side plate and the second side plate, making the structure of the whole electric stapler more compact. The motor drives the eccentric wheel to rotate, and the eccentric wheel periodically presses the upper cover of the pressing nail to realize the automatic binding action. The binding action of the motor is controlled by the sensor sensing the position of the eccentric wheel, and the binding effect is better.

[0017] Further, an adjusting bolt and a supporting bolt are provided, so that the electric stapler of the present utility model can facilitate the adjustment of the height of the binding opening of the electric stapler, thereby adapting to the thickness of different objects to be bound.

[0018] Further, the rotation direction is switched through the second helical gear and the first helical gear, so that the direction of the output shaft of the motor is perpendicular to the direction of the second mounting shaft, thereby being able to more greatly limit the reduction of the distance between the first side plate and the second side plate, making the structure of the whole electric stapler more compact.

[0019] Further, a third gear is provided, which can enhance the transmission continuity between the gears, thereby improving the transmission efficiency and stability. Brief Description of the Drawings

[0020] Figure 1 It is a three-dimensional schematic diagram of the electric stapler of the present utility model in the unbound state, and the second side plate is omitted in the figure.

[0021] Figure 2 It is a three-dimensional schematic diagram of the electric stapler of the present utility model in the unbound state, and the side plate on one side of the housing and the box body is omitted in the figure.

[0022] Figure 3 It is a three-dimensional schematic diagram of the electric stapler of the present utility model in the bound state, and the side plate on one side of the housing and the box body is omitted in the figure.

[0023] Figure 4 It is a three-dimensional schematic diagram of the electric stapler of the present utility model in the unbound state.

[0024] In the figure:

[0025] 1 - Housing; 11 - First side plate;

[0026] 12 - Second side plate; 13 - Top plate;

[0027] 14 - Adjusting bolt; 15 - Supporting bolt;

[0028] 2 - Binding mechanism; 21 - Base;

[0029] 22 - Staple box; 23 - Upper cover for pressing staples;

[0030] 24 - Base; 25 - Elastic plate;

[0031] 26 - First lug; 27 - Second lug;

[0032] 28 - Bearing; 3 - Driving mechanism;

[0033] 31 - Motor; 32 - Eccentric wheel;

[0034] 33 - Box body; 34 - Inductor;

[0035] 41 - First helical gear; 42 - First mounting shaft;

[0036] 43 - Second helical gear; 44 - First gear;

[0037] 45 - Second mounting shaft; 46 - Second gear;

[0038] 47 - Third gear; 48 - Third mounting shaft. Detailed implementation manners

[0039] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0040] Such as Figures 1 to 4As shown in the figure, a new type of electric stapler includes a housing 1, a binding mechanism 2 provided at the bottom of the housing 1, and a driving mechanism 3 for driving the binding mechanism 2 to perform a binding action. The binding mechanism 2 includes a base 21, a staple box 22 for accommodating staples, and a pressing staple upper cover 23 that cooperates with the staple box 22 to press the staples out of the staple box 22. A binding opening for binding is formed between the staple box 22 and the base 21. Both the staple box 22 and the pressing staple upper cover 23 are hinged to the base 21 and are provided with an automatic reset mechanism. After pressing, the pressing staple upper cover 23 can automatically return to its original position. At the same time, the accommodating groove for staples in the staple box 22 can pop out to facilitate the replenishment of staples. The binding mechanism 2 with this structure has been introduced in existing automatic staplers, and no similar description will be given here.

[0041] The housing 1 includes a first side plate 11 and a second side plate 12 arranged opposite to each other, and a top plate 13 for connecting the first side plate 11 and the second side plate 12. The base 21 is installed between the first side plate 11 and the second side plate 12. The first side plate 11 and the second side plate 12 are both arranged parallel to each other in the vertical direction. The base 21 is installed between the lower parts of the first side plate 11 and the second side plate 12. The driving mechanism 3 includes a motor 31 fixed between the first side plate 11 and the second side plate 12, a gearbox assembly provided at the output end of the motor 31, and an eccentric wheel 32 for driving the pressing staple upper cover 23 to move up and down. In this embodiment, the motor 31 is a high-speed motor. For example, a motor with a speed of 1000 to 100,000 revolutions per minute can be selected. The eccentric wheel 32 is rotatably installed in the gearbox assembly. The gearbox assembly includes a box body 33 and a gear transmission assembly provided in the box body 33. In this embodiment, the box body 33 is a square box body. The box body 33 is correspondingly arranged above the binding opening. A sensor 34 for sensing the distance of the eccentric wheel 32 is also provided at the top inside the box body 33. The sensor 34 is correspondingly arranged above the eccentric wheel 32. It should be noted that the electric stapler of the present invention also includes a control chip (not shown in the figure) provided in the housing 1. The sensor 34 and the motor 31 are both electrically connected to the control chip. In this embodiment, the sensor 34 can be an existing conventional distance sensor, and the control chip can be a conventional control chip in the art. When the eccentric wheel 32 rotates downward, it drives the pressing staple upper cover 23 to perform a binding action. When the eccentric wheel 32 rotates one circle and approaches the sensor 34 to reach a preset value, the sensor 34 sends a signal to the control chip, and the control chip causes the motor 31 to stop working. Preferably, in actual use, an electronic counter (not shown in the figure) can be additionally provided, and the sensor 34 and the electronic counter are electrically connected to the control chip to facilitate the user to know the number of bindings.

[0042] The gear transmission assembly includes a first helical gear 41 mounted on the output shaft of the motor 31, a second helical gear 43 rotatably arranged in the box body 33 through a first mounting shaft 42, a first gear 44 coaxially arranged with the second helical gear 43, and a second gear 46 rotatably arranged in the box body 33 through a second mounting shaft 45. Both ends of the first mounting shaft 42 and both ends of the second mounting shaft 45 are rotatably mounted on both sides of the box body 33 respectively. The first mounting shaft 42 and the second mounting shaft 45 are both arranged in the horizontal direction and are parallel to each other. The first helical gear 41 meshes with the second helical gear 43. Preferably, in this embodiment, a third gear 47 is rotatably arranged between the first gear 44 and the second gear 46. Correspondingly, the third gear 47 is rotatably arranged on the box body 33 through a third mounting shaft 48. With such a setting, the transmission continuity between the gears can be enhanced, thereby improving the transmission efficiency and stability. The first helical gear 41 is arranged above the second helical gear 43, and the first helical gear 41 is arranged in the horizontal direction and is perpendicular to the first mounting shaft 42. The eccentric wheel 32 is fixedly mounted on the second mounting shaft 45. With this structure, a high-speed motor 31 is adopted. The transmission direction is changed through the meshing of the second helical gear 43 and the first helical gear 41, and speed change is achieved through the gears, which can achieve the effect of speed reduction, making the eccentric wheel 32 have a greater driving force. It should be noted that the second helical gear 43 and the first helical gear 41 can also be replaced with a mutually meshing turbine and worm, as long as the above effects can be achieved.

[0043] A base 24 is provided on the nail pressing upper cover 23. An elastic plate 25 is connected to the base 24. One end of the elastic plate 25 is a mounting end connected to the base 24, and the other end is a movable end that can move up and down. A bearing seat is provided on the movable end. Both sides of the bearing seat have a first lug 26 and a second lug 27. It also includes a connecting shaft passing through the first lug 26 and the second lug 27. A bearing 28 cooperating with the eccentric wheel 32 is provided on the connecting shaft. The first lug 26 and the second lug 27 are located at the bottom of the box body 33. The elastic plate 25 can be made of a steel plate with a certain rigidity. When the eccentric wheel 32 normally presses against the bearing 28, the elastic plate 25 is stressed and undergoes a slight deformation, which can drive the nail pressing upper cover 23 to move downward to achieve binding. With such a setting, when it is difficult for the nail pressing upper cover 23 to move downward due to reasons such as too thick objects to be bound, the eccentric wheel 32 presses against the bearing 28, causing the elastic plate 25 to undergo a relatively large deformation. Thus, the eccentric wheel 32 can rotate smoothly, and the nail pressing upper cover 23 will not be stuck. After reducing the binding amount, binding is carried out again. By providing the bearing 28, sliding contact can be achieved between the eccentric wheel 32 and the elastic plate 25, avoiding hard contact between the eccentric wheel 32 and the elastic plate 25 and causing wear.

[0044] Preferably, the base 24 is disposed in the middle of the upper cover 23 of the pressing nail, and the movable end is correspondingly disposed at a position of the elastic plate 25 close to the nail box 22. The elastic plate 25 is locked on the base 24 by a first screw; the base 21 is locked on the first side plate 11 and the second side plate 12 by a second screw.

[0045] Preferably, an adjustment bolt 14 arranged vertically is further provided on the top plate 13. The adjustment bolt 14 penetrates through the top plate 13 into the housing 1 and abuts against the top of the box body 33. The adjustment bolt 14 is disposed at a position above the binding opening. A support bolt 15 arranged horizontally also penetrates through the housing 1 corresponding to the position of the box body 33. One end of the support bolt 15 sequentially passes through the first side plate 11, the box body 33 and the second side plate 12 and is fixed by a support nut (not shown in the figure). When it is necessary to adjust the height of the opening of the electric stapler, loosen the support bolt 15 and the adjustment bolt 14, so that the box body 33 rotates up and down with the support bolt 15 as the rotation fulcrum. Since the box body 33 is correspondingly disposed above the upper cover 23 of the pressing nail, when the box body 33 rotates up and down, the box body 33 will drive the upper cover 23 of the pressing nail to move up and down through the first lug 26 and the second lug 27, so as to realize the adjustment of the height of the binding opening. After adjustment, tighten the support bolt 15 and abut the adjustment bolt 14 against the top of the box body 33 to complete the fixation of the box body 33; with such a setting, the electric stapler of the present invention can facilitate the adjustment of the height of the binding opening of the electric stapler, so as to adapt to the thickness of different objects to be bound.

[0046] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel electric stapler, comprising a housing, a binding mechanism arranged at the bottom of the housing, and a driving mechanism for driving the binding mechanism to perform a binding action, wherein the binding mechanism comprises a base, a staple box for accommodating staples, and a staple pressing cover for cooperating with the staple box to press the staples out of the staple box, characterized in that: The shell includes a first side plate and a second side plate that are arranged opposite to each other, and a top plate for connecting the first side plate and the second side plate. The base is installed between the first side plate and the second side plate. The driving mechanism includes a motor fixed between the first side plate and the second side plate, a gear box assembly arranged at the output end of the motor and an eccentric wheel for driving the pressure nail upper cover to move up and down. The gear box assembly includes a box body and a gear transmission assembly arranged in the box body. The eccentric wheel is rotatably installed on the gear transmission assembly. An inductor is also provided on the top of the box body. The inductor is electrically connected to the motor and is correspondingly arranged above the eccentric wheel.

2. A new electric stapler according to claim 1, characterized in that: The top plate is also provided with a vertically arranged adjustment bolt, the adjustment bolt is passed through the top plate into the outer shell and abuts against the top of the box body, the adjustment bolt is arranged at a position above the nail box, and the outer shell is also provided with a horizontally arranged support bolt at a position corresponding to the box body, one end of the support bolt passes through the first side plate, the box body and the second side plate in sequence, and is fixed by a support nut.

3. A new type of electric stapler according to claim 1, characterized in that: The gear transmission assembly includes a first bevel gear installed on the output shaft of the motor, a second bevel gear rotatably arranged in the housing through a first mounting shaft, a first gear coaxially arranged with the second bevel gear, and a second gear rotatably arranged in the housing through a second mounting shaft, the first bevel gear meshes with the second bevel gear, the first gear meshes with the second gear, the first mounting shaft and the second mounting shaft are both arranged in a horizontal direction, the first mounting shaft is arranged parallel to the second mounting shaft, the first bevel gear is arranged in a horizontal direction and is perpendicular to the first mounting shaft, and the eccentric wheel is fixedly mounted on the second mounting shaft.

4. A new electric stapler according to claim 3, characterized in that: A third gear is rotatably arranged between the first gear and the second gear, and the third gear is rotatably arranged on the box body through a third mounting shaft.

5. The new electric stapler according to claim 1 is characterized in that: The pressure nail upper cover is provided with a base, and the base is connected to an elastic plate, one end of the elastic plate is a mounting end connected to the base, and the other end is a movable end that can move up and down, and a bearing seat is provided on the movable end, and the bearing seat has a first lug and a second lug on both sides, and also includes a connecting shaft passing through the first lug and the second lug, and the connecting shaft is provided with a bearing that cooperates with the eccentric wheel.

6. A new type of electric stapler according to claim 5, characterized in that: The base is arranged in the middle of the nail pressing upper cover, the movable end is arranged correspondingly at the position of the elastic plate close to the nail box, and the elastic plate is locked on the base by a first screw.

7. A novel electric stapler according to claim 1, characterized in that: The base is locked on the first side plate and the second side plate by a second screw.

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