CN220807618U

CN220807618U - Paper cutting machine

Info

Publication number: CN220807618U
Application number: CN202322678601.5U
Authority: CN
Inventors: 柯林; 段炼成; 褚华平
Original assignee: Wuhan Agile Printing Co ltd
Current assignee: Wuhan Agile Printing Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-04-19
Anticipated expiration: 2033-09-28

Abstract

The utility model relates to a paper cutter, which comprises a workbench and a supporting seat, wherein a knife rest and a cutting knife are hinged on the supporting seat, a driving motor and a motor shaft are arranged on the workbench, a rotating shaft is arranged on the motor shaft, a rotating disc and an eccentric rod are arranged on the rotating shaft, a connecting rod is arranged between the eccentric rod and the cutting knife, an overload prevention cavity and a mounting cavity are arranged on the rotating shaft, an overload prevention mechanism is arranged in the overload prevention cavity and comprises a clamping hole, a telescopic rod and a clamping joint are arranged in the clamping hole, a clamping spring is arranged between the clamping joint and the clamping hole, a clamping groove is arranged on the motor shaft, the driving motor drives the rotating disc and the eccentric rod to rotate, the connecting rod, the knife rest and the cutting knife are driven to vertically move by the eccentric rod, paper cutting work is performed, the paper cutting efficiency is high, and the positions of the motor shaft and the rotating shaft are relatively fixed by the telescopic rod, the clamping spring and the clamping joint are arranged in the clamping groove on the motor shaft, so that the driving motor is prevented from being damaged when overload occurs.

Description

Paper cutting machine

Technical Field

The utility model relates to the technical field of paper cutters, in particular to a paper cutter.

Background

The paper cutting machine is a mechanical device for cutting paper or other materials, and comprises the following main components: the paper feeding mechanism, the cutting mechanism, the paper collecting mechanism and the control system are widely applied to cutting processing of paper in the fields of printing packaging, paper industry production and the like, compared with traditional manual cutting, the paper cutting machine has the advantages of high cutting precision and efficiency, but the existing paper cutting machine has a complex machine structure, high operation difficulty and high cost, is not friendly to small enterprises, the cutting precision and quality are difficult to ensure, the maintenance cost is high, the conveying rollers or cutters are required to be replaced for paper of different specifications, the adjustment cost is high, meanwhile, when the paper cut by the paper cutting machine is harder or thicker, overload is easy to occur to the motor, the motor is easy to raise the temperature and aggravate abrasion, the service life is reduced, even the bearing is damaged, and the cutting efficiency and the cutting quality are affected.

Disclosure of utility model

(One) solving the technical problems

Aiming at the problems in the prior art, the utility model provides a paper cutter to solve the technical problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a paper cutter, includes the workstation, be equipped with the supporting seat on the workstation, articulated tool rest and the cutting knife of being equipped with on the supporting seat, be equipped with driving motor on the workstation, be equipped with the motor shaft on the driving motor, be equipped with the axis of rotation on the motor shaft, be equipped with the rolling disc in the axis of rotation, be equipped with eccentric rod on the rolling disc, articulated between eccentric rod and the cutting knife is equipped with the connecting rod, be equipped with overload prevention chamber and installation cavity in the axis of rotation, overload prevention intracavity is equipped with overload prevention mechanism, overload prevention mechanism includes the joint hole, the joint hole is provided with a plurality of along overload prevention intracavity wall, be equipped with telescopic link and joint in the joint hole, be equipped with the joint spring between joint and the joint hole, be provided with on the motor shaft with joint complex joint groove, through driving motor drive motor shaft and axis of rotation, and eccentric rod rotation, drive connecting rod, tool rest and cutting knife carry out the removal on vertical orientation, and then cut paper work, and paper cutting efficiency is high, through setting up in the joint hole, joint hole and motor shaft and joint spring and motor shaft, and joint and motor shaft are connected relatively when the relative, and the relative slip position takes place, and the relative damage is avoided.

Preferably, be equipped with the baffle between overload prevention chamber and the installation cavity, be equipped with the mounting groove on the motor shaft, be equipped with installation spring and installation piece in the mounting groove, through setting up baffle and installation piece, the position of the fixed axis of rotation of being convenient for, and then install the axis of rotation on the motor shaft, through setting up installation piece and installation spring in the mounting groove, be convenient for install the installation axle.

In a further preferred embodiment, the contact surface of the mounting block and the baffle is provided with an inclined surface, and the contact surface is provided with the inclined surface, so that the mounting block is convenient to squeeze, and the rotating shaft is convenient to mount.

In a further preferred embodiment, the mounting cavity is provided with a dismounting rod in a sliding manner, the mounting block is extruded by the dismounting rod, and the mounting block is extruded into the mounting groove, so that the motor shaft and the rotating shaft are conveniently dismounted.

In a further preferred embodiment, the disassembly rod is provided with a first limiting piece and a second limiting piece, a limiting spring is arranged between the first limiting piece and the rotating shaft, the movement position of the disassembly rod is limited by arranging the first limiting piece and the second limiting piece, and the disassembly rod is reset conveniently by arranging the limiting spring.

In a further preferred aspect, the cutter rest is provided with a fixing block, the cutter is provided with a fixing groove, and a fixing pad is arranged between the fixing groove and the fixing block, so that the stability of the installation of the cutter rest and the cutter is improved through the fixing block, the fixing groove and the fixing pad.

In a further preferred embodiment, the two sides of the cutting knife are provided with fixing plates, the cutting knife, the fixing pads and the fixing blocks are detachably connected through the cooperation of bolts and nuts, and the cutting knife is convenient to install and detach through the cooperation of the fixing plates and the bolts and nuts.

(III) beneficial effects

Compared with the prior art, the utility model provides the paper cutter, which has the following beneficial effects:

1. according to the paper cutting machine, the motor shaft and the rotating shaft are driven to rotate by the driving motor, the rotating disc and the eccentric rod are driven to rotate, and the connecting rod, the knife rest and the cutting knife are driven by the eccentric rod to move in the vertical direction, so that paper cutting work is performed, and paper cutting efficiency is high.

2. According to the utility model, the telescopic rod, the clamping spring and the clamping connector are arranged in the clamping hole and are matched with the clamping groove on the motor shaft, so that the positions of the motor shaft and the rotating shaft are relatively fixed, and when the driving motor is overloaded, the driving motor can slide relatively through the rotating shaft and the motor shaft, so that the damage of the driving motor is avoided.

3. According to the utility model, the baffle and the mounting block are arranged, so that the position of the rotating shaft is convenient to fix, the rotating shaft is further mounted on the motor shaft, the mounting block and the mounting spring are arranged in the mounting groove, the mounting shaft is convenient to mount, the mounting block is extruded into the mounting groove by the dismounting rod, the motor shaft and the rotating shaft are further convenient to dismount, the fixing plate, the fixing block, the fixing groove and the fixing pad are arranged, the mounting stability of the cutter rest and the cutter rest is improved, the cutter rest and the cutter rest are convenient to mount and dismount, and the paper cutting machine is further convenient to overhaul and replace.

Drawings

FIG. 1 is a schematic view of the overall structure of a paper cutter according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a motor shaft and a rotating shaft according to the present utility model;

FIG. 3 is a schematic view of the enlarged partial structure of FIG. 2A;

FIG. 4 is a schematic view of the structure of FIG. 2B in a partially enlarged manner;

Fig. 5 is a schematic diagram of a matching structure of a cutter holder and a cutter according to the present utility model.

In the figure: 1. a work table; 2. a support base; 3. a tool holder; 4. a cutting knife; 5. a driving motor; 6. a motor shaft; 7. a rotating shaft; 8. a rotating disc; 9. an eccentric rod; 10. a connecting rod; 11. an overload prevention cavity; 12. a mounting cavity; 13. a clamping hole; 14. a telescopic rod; 15. a clamping joint; 16. a clamping spring; 17. a clamping groove; 18. a baffle; 19. a mounting groove; 20. installing a spring; 21. a mounting block; 22. disassembling the rod; 23. a first limiting piece; 24. the second limiting piece; 25. a limit spring; 26. a fixed block; 27. a fixing groove; 28. a fixing pad; 29. and a fixing plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

Referring to fig. 1-5, a paper cutter includes a workbench 1, a supporting seat 2 is provided on the workbench 1, a knife rest 3 and a cutter 4 are hinged on the supporting seat 2, a driving motor 5 is provided on the workbench 1, a motor shaft 6 is provided on the driving motor 5, a rotating shaft 7 is provided on the motor shaft 6, a rotating disc 8 is provided on the rotating shaft 7, an eccentric rod 9 is provided on the rotating disc 8, a connecting rod 10 is hinged between the eccentric rod 9 and the cutter 4, an overload prevention cavity 11 and a mounting cavity 12 are provided on the rotating shaft 7, an overload prevention mechanism is provided in the overload prevention cavity 11, the overload prevention mechanism includes a clamping hole 13, a plurality of telescopic rods 14 and clamping joints 15 are provided in the clamping hole 13 along the inner wall of the overload prevention cavity 11, a clamping spring 16 is provided between the clamping joint 15 and the clamping hole 13, and a clamping groove 17 matched with the clamping joint 15 is provided on the motor shaft 6.

Referring to fig. 1-5, in the present embodiment, a baffle 18 is disposed between an overload protection cavity 11 and a mounting cavity 12, a mounting groove 19 is disposed on a motor shaft 6, a mounting spring 20 and a mounting block 21 are disposed in the mounting groove 19, a contact surface between the mounting block 21 and the baffle 18 is an inclined surface, a dismounting rod 22 is slidably disposed on the mounting cavity 12, a first limiting plate 23 and a second limiting plate 24 are disposed on the dismounting rod 22, and a limiting spring 25 is disposed between the first limiting plate 23 and the rotating shaft 7.

Referring to fig. 1-5, in the present embodiment, a fixing block 26 is disposed on the tool rest 3, a fixing groove 27 is disposed on the cutting blade 4, a fixing pad 28 is disposed between the fixing groove 27 and the fixing block 26, fixing plates 29 are disposed on two sides of the cutting blade 4, and the fixing plates 29, the cutting blade 4, the fixing pad 28 and the fixing block 26 are detachably connected through the cooperation of bolts and nuts.

Example 2:

On the basis of embodiment 1, when installing cutting knife 4, place fixed bolster 28 in fixed slot 27, install fixed slot 27 and fixed bolster 28 on fixed block 26, set up fixed plate 29 and pass through the cooperation of bolt and nut in cutting knife 4 both sides, assemble cutting knife 4, fixed bolster 28 and fixed block 26, when installing motor shaft 6 and axis of rotation 7, stretch into the installation cavity 12 of axis of rotation 7 with motor shaft 6, baffle 18 extrudees installation piece 21 and installation spring 20 along the inclined plane of installation piece 21, installation piece 21 enters into installation slot 19 downwards, when baffle 18 passes through installation piece 21 completely, installation piece 21 pops out under the effect of installation spring 20 elasticity, the position of blocking baffle 18, telescopic link 14 and joint 15 move along joint groove 17 simultaneously, joint groove 17 extrudees joint spring 16, joint spring 16 makes joint 15 have the elasticity that continuously steadily points to joint groove 17, and then carry out the relative fixation to the position of joint 15 and joint groove 17, when dismantling 6, press down dismantling pole 22 on axis of rotation 7, dismantle pole 22 downwards, through the spacing piece 22 is installed in the side of installation piece 21 is convenient for dismantling pole 22 through the axial compression piece 21, and the spacing piece 21 is installed to the side of installation piece 21 through the spacing piece 21, and then the installation piece 19 is convenient for dismantle in the axis of rotation 7.

Example 3:

On the basis of embodiment 2, when in use, the paper to be cut is placed on the workbench 1, the driving motor 5 is started, the driving motor 5 drives the motor shaft 6 and the rotating shaft 7 to rotate, and then drives the rotating disc 8 and the eccentric rod 9 to rotate, the eccentric rod 9 drives the tool rest 3 and the cutting tool 4 to carry out reciprocating motion in the vertical direction through the connecting rod 10, when the paper difficult to cut is encountered, the rotating disc 8 and the rotating shaft 7 cannot smoothly finish rotating, at the moment, the motor shaft 6 continues rotating, the clamping connector 15, the telescopic rod 14 and the clamping spring 16 are extruded to the outer side of the circumference, and then the clamping connector 15 stretches into the clamping hole 13, so that the rotating shaft 7 and the motor shaft 6 relatively rotate, and further the driving motor 5 is prevented from being overloaded to damage the driving motor 5.

In all the above mentioned solutions, in which the connection between two components can be chosen according to the actual situation, a welded, bolt-and-nut-fitted connection, a bolt-or-screw connection or other known connection means, which are not described in detail herein, where reference is made to a written fixed connection, the preferred consideration is welding, although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that numerous variations, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a paper cutter, includes workstation (1), its characterized in that: be equipped with supporting seat (2) on workstation (1), articulated on supporting seat (2) are equipped with knife rest (3) and cutting knife (4), be equipped with driving motor (5) on workstation (1), be equipped with motor shaft (6) on driving motor (5), be equipped with axis of rotation (7) on motor shaft (6), be equipped with rolling disc (8) on axis of rotation (7), be equipped with eccentric rod (9) on rolling disc (8), articulated between eccentric rod (9) and cutting knife (4) are equipped with connecting rod (10), be equipped with overload protection chamber (11) and installation chamber (12) on axis of rotation (7), be equipped with overload protection mechanism in overload protection chamber (11), overload protection mechanism includes joint hole (13), joint hole (13) are provided with a plurality ofly along overload protection chamber (11) inner wall, be equipped with telescopic link (14) and joint (15) in joint hole (13), be equipped with joint spring (16) between joint (15) and joint hole (13), be provided with joint motor shaft (6) on joint (17) and joint groove (17).

2. A paper cutter according to claim 1, wherein: a baffle plate (18) is arranged between the overload prevention cavity (11) and the installation cavity (12), an installation groove (19) is formed in the motor shaft (6), and an installation spring (20) and an installation block (21) are arranged in the installation groove (19).

3. A paper cutter according to claim 2, wherein: the contact surface of the mounting block (21) and the baffle (18) is an inclined surface.

4. A paper cutter according to claim 1, wherein: the mounting cavity (12) is provided with a dismounting rod (22) in a sliding manner.

5. The paper cutter of claim 4, wherein: the dismounting rod (22) is provided with a first limiting piece (23) and a second limiting piece (24), and a limiting spring (25) is arranged between the first limiting piece (23) and the rotating shaft (7).

6. A paper cutter according to claim 1, wherein: the cutter rest (3) is provided with a fixed block (26), the cutter (4) is provided with a fixed groove (27), and a fixed pad (28) is arranged between the fixed groove (27) and the fixed block (26).

7. The paper cutter of claim 6, wherein: the cutting knife is characterized in that fixing plates (29) are arranged on two sides of the cutting knife (4), and the fixing plates (29), the cutting knife (4), the fixing pads (28) and the fixing blocks (26) are detachably connected through the cooperation of bolts and nuts.