Paper cutting machine with cutter convenient to replace

Abstract

The paper cutting machine comprises a square bottom plate, a clamping rod is arranged at the upper end of the bottom plate, a first through groove and a second through groove are horizontally formed in the clamping rod, a sliding block penetrates through the first through groove, a base block is arranged at one end of the sliding block, a blade is arranged on the base block, and a threaded rod is arranged at the other end of the sliding block. And a nut is tightly sleeved on the screw rod. The file cutting device is novel in structural design, the blade is firmly and reliably connected with the clamping rod through the bolt, meanwhile, disassembly is convenient, the blade is easy to replace, the sliding block drives the base block to move along the first through groove, then the blade is driven to cut files, and operation is convenient, safe and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of paper cutting equipment, in particular to a paper cutter with a convenient replacement of a cutter. Background Art

[0002] In office life, small paper cutters are used to cut a small number of documents and cut the paper neatly before binding. At present, one end of the cutter of the small paper cutter is hinged with the device, and the cutting is completed by pressing the lever. When the cutter needs to be replaced, the operation is cumbersome, time-consuming and laborious. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a paper cutter which is convenient for replacing the cutter.

[0004] The utility model is implemented as follows: a paper cutter that is convenient for replacing a cutting knife comprises a square bottom plate, a cross bar is horizontally fixedly arranged on one side of the upper end of the bottom plate, a stopper rod perpendicular to the cross bar is arranged on the bottom plate, one end of the stopper rod is movably connected to the cross bar, a document is placed on the bottom plate, and the position of the document is limited by the cross bar and the stopper rod, a clamping rod is fixedly arranged on one side of the upper end of the bottom plate and parallel to the stopper rod, a first through slot is horizontally opened at the middle position of the clamping rod, which is convenient for horizontal movement of the slider, a second through slot is horizontally opened at the bottom of the clamping rod, the bottom of the second through slot is at the same horizontal plane as the upper end surface of the bottom plate, which is convenient for the document to pass through along the second through slot, a rectangular parallelepiped slider is arranged through the first through slot to avoid self-rotation, thereby ensuring that the base block will not deflect in position during movement, and one end of the slider is fixedly provided with A base block is arranged to be connected with the blade, and the size of the base block is larger than the size of the first through groove, so that the base block and the clamping rod are pressed together to limit the position of the base block, and a plurality of threaded holes are provided at one end of the base block away from the slider, and a blade is obliquely provided on one side of the base block, and a plurality of through holes are provided on the blade, and the positions of the through holes and the threaded holes correspond to each other and have the same aperture, and bolts are provided through the through holes and the threaded holes, and the blade and the clamping rod are firmly and reliably connected together by the bolts, and the disassembly is convenient and the blade is easy to replace, and a groove is provided on the bottom plate below the blade, and the lower end of the blade is arranged in the groove to ensure reliable contact between the blade and the file, and a screw is fixedly provided at the other end of the slider, and a nut is tightly sleeved on the screw, and the nut is tightened, so that the base block and the clamping rod are pressed together to limit the position of the base block.

[0005] Preferably, stoppers are horizontally fixedly provided on both sides of the blade on the base block to block the blade.

[0006] Preferably, a pull rod is fixedly arranged horizontally on one side of the base block, and the front end of the pull rod is a cylindrical rod, which is convenient for holding and convenient and labor-saving for moving the blade through the base block.

[0007] Preferably, the bottom of the first through groove is located above the cross bar to ensure the stable movement of the base block. The distance a between the first through groove and the second through groove to the end of the bottom plate is less than the distance b between the inner side of the cross bar to the end of the bottom plate to ensure that the blade moves to the maximum range.

[0008] Preferably, the length of the groove is greater than the length of the first through groove to ensure that the blade moves to the maximum range.

[0009] Preferably, the height of the slider is the same as the thickness of the first through groove to prevent the slider from deflecting during movement.

[0010] The beneficial effects of the present utility model are as follows: The structure of the present utility model is novel. The blade is firmly and reliably connected to the clamping rod through bolts, and at the same time, it is convenient to disassemble and easy to replace the blade. The slider drives the base block to move along the first through groove, thereby driving the blade to cut the document, which is convenient to operate, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a top view of the paper cutting machine;

[0012] Figure 2 It is a side view of the paper cutting machine;

[0013] Figure 3 It is a schematic structural diagram of the connection between the blade and the base block;

[0014] In the figure: 1. bottom plate; 2. cross bar; 3. retaining bar; 4. clamping rod; 5. first through groove; 6. second through groove; 7. slider; 8. base block; 9. threaded hole; 10. blade; 11. through hole; 12. bolt; 13. groove; 14. screw rod; 15. nut; 16. stop block; 17. pull rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to better understand the technical solution of the present utility model, the present utility model will be further described below with reference to the accompanying drawings.

[0016] Such as Figures 1-3The paper cutter shown is easy to replace the cutting knife, comprises a square base plate 1, a cross bar 2 is horizontally fixedly arranged on one side of the upper end of the base plate 1, a stop bar 3 is arranged on the base plate 1 and is perpendicular to the cross bar 2, one end of the stop bar 3 is movably connected to the cross bar 2, a document is placed on the base plate 1, and the position of the document is limited by the cross bar 2 and the stop bar 3, a clamping rod 4 is fixedly arranged on one side of the upper end of the base plate 1 and parallel to the stop bar 3, a first through groove 5 is horizontally opened in the middle position of the clamping rod 4, which is convenient for the horizontal movement of the slider 7, a second through groove 6 is horizontally opened at the bottom of the clamping rod 4, the bottom of the second through groove 6 is in the same horizontal plane as the upper end surface of the base plate 1, which is convenient for the document to pass through the second through groove 6, a rectangular block slider 7 is arranged through the first through groove 5 to avoid self-rotation, thereby ensuring that the base block 8 will not deflect in position during movement, and the height of the slider 7 is the same as the thickness of the first through groove 5 to prevent the slider 7 from deflecting during movement. A base block 8 is fixedly provided at one end of the slider 7 and connected to the blade 10. The size of the base block 8 is larger than the size of the first through groove 5, so that the base block 8 and the clamping rod 4 are abutted together to limit the position of the base block 8. Two threaded holes 9 are provided at the end of the base block 8 away from the slider 7. A blade 10 is obliquely provided on one side of the base block 8. Two through holes 11 are provided on the blade 10. The positions of the through holes 11 and the threaded holes 9 correspond and have the same aperture. Bolts 12 are provided through the through holes 11 and the threaded holes 9. The blade 10 and the clamping rod 4 are firmly and reliably connected together by the bolts 12. At the same time, disassembly is convenient and the blade is easy to replace. Stoppers 16 are horizontally fixed on both sides of the blade 10 on the base block 8 to block the blade 10. A groove 13 is provided on the bottom plate 1 below the blade 10, and the lower end of the blade 10 is arranged in the groove 13 to ensure reliable contact between the blade 10 and the document. A screw 14 is fixedly provided at the other end of the slider 7, and a nut 15 is tightly sleeved on the screw 14. When the nut 15 is tightened, the base block 8 and the clamping rod 4 are pressed together to limit the position of the base block 8. A pull rod 17 is fixedly provided horizontally on one side of the base block 8, and the front end of the pull rod 17 is a cylindrical rod, which is convenient for holding and convenient and labor-saving to drive the blade 10 to move through the base block 8.

[0017] The bottom of the first through slot 5 is located above the cross bar 2, ensuring the smooth movement of the base block 8. The distance a between the first through slot 5 and the second through slot 6 and the end of the bottom plate 1 is smaller than the distance b between the inner side of the cross bar 2 and the end of the bottom plate 1. The length of the groove 13 is greater than the length of the first through slot 5, ensuring that the blade 10 moves to the maximum range.

[0018] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A paper cutter for easy replacement of cutting blades, comprising a square bottom plate, a horizontal crossbar fixedly arranged on one side of the upper end of the bottom plate, a stop bar perpendicular to the crossbar arranged on the bottom plate, one end of the stop bar movably connected to the crossbar, characterized in that: A clamping rod is fixedly provided on one side of the upper end of the bottom plate and parallel to the blocking rod, a first through slot is horizontally provided at the middle position of the clamping rod, a second through slot is horizontally provided at the bottom of the clamping rod, the bottom of the second through slot is at the same horizontal plane as the upper end surface of the bottom plate, a rectangular parallelepiped slider is provided through the first through slot, a base block is fixedly provided at one end of the slider, the size of the base block is larger than the size of the first through slot, a plurality of threaded holes are provided at one end of the base block away from the slider, a blade is obliquely provided on one side of the base block, a plurality of through holes are provided on the blade, the positions of the through holes and the threaded holes correspond to each other and have the same aperture, bolts are provided through the through holes and the threaded holes, a groove is provided on the bottom plate below the blade, the lower end of the blade is provided in the groove, a screw is fixedly provided at the other end of the rectangular parallelepiped slider, a nut is tightly fitted on the screw.

2. A paper cutter with easy replacement of cutter blade according to claim 1, characterized in that: Stoppers are horizontally fixedly arranged on both sides of the blade on the base block.

3. A paper cutter with easy replacement of cutter according to claim 1, characterized in that: A pull rod is horizontally fixedly arranged on one side of the base block, and the front end of the pull rod is a cylindrical rod.

4. A paper cutter with easy-to-replace cutter according to claim 1, characterized in that: The bottom of the first through slot is located above the cross bar, and the distance a between the first through slot and the second through slot and the end of the bottom plate is smaller than the distance b between the inner side of the cross bar and the end of the bottom plate.

5. A paper cutter with easy replacement of cutter according to claim 1, characterized in that: The length of the groove is greater than the length of the first through groove.

6. A paper cutter with easy-to-replace cutter according to claim 1, characterized in that: The height of the sliding block is the same as the thickness of the first through groove.

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