Cutter adjusting mechanism of paper cutter

Abstract

The utility model relates to the technical field of paper cutting machines, in particular to a cutter adjusting mechanism of a paper cutting machine, which comprises a connecting plate, a first fixing portion, a second fixing portion, a fixing seat, a cutter holder placing portion and a second driving piece. The second driving piece is moved to the position between the first fixing part and the second fixing part, one end of the cutting knife is fixed through the first fixing part, the other end of the cutting knife is fixed through the second fixing part, and therefore the cutting knife is fixed to the connecting plate, the situation that the cutting knife is held by hands for a long time is avoided, the hand burden is reduced, and the cutting knife is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of paper cutting machines, and particularly relates to a tool adjusting mechanism for a paper cutting machine. Background Art

[0002] A Chinese patent with the authorization announcement number CN221186767U discloses a tool adjusting mechanism for a paper cutting machine. Specifically, a spring is fixedly installed inside the fixed frame, a movable plate is fixedly installed on one side of the spring, sliding rods that are slidably connected to the fixed frame are fixedly installed at the top and bottom of the movable plate, a pull rod that is slidably connected to the fixed frame is fixedly installed on one side of the movable plate, a bolt that is slidably connected to the fixed frame is fixedly installed on one side of the movable plate, a tool holder is inserted outside the bolt, and a blade body is fixedly installed at the bottom of the tool holder.

[0003] This patent can well realize the quick installation and disassembly of the tool holder. However, each time of installation, the operator manually holds the tool holder and cooperates with the bolt for connection. Holding the tool holder for a long time will damage the operator's hand and may be scratched by the blade body on the tool holder. Therefore, there is an urgent need for a tool adjusting mechanism for a paper cutting machine that can reduce the hand burden and avoid being scratched by the blade. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a tool adjusting mechanism for a paper cutting machine that can reduce the hand burden and avoid being scratched by the blade.

[0005] In order to solve the above technical problem, the technical solution adopted by the utility model is: a tool adjusting mechanism for a paper cutting machine, comprising:

[0006] A base;

[0007] A connecting plate, which is movably connected to the base in the vertical direction;

[0008] A first driving member for driving the connecting plate to move;

[0009] A cutting assembly, which is connected to the connecting plate. The cutting assembly includes a lead screw shaft, a first moving block, a second moving block, a driving motor, a first fixing part and a second fixing part. The lead screw shaft is connected to the connecting plate, the axial direction of the lead screw shaft is the X direction, the lead screw shaft includes a positive thread section and a reverse thread section, the first moving block is slidably connected to the positive thread section, the second moving block is slidably connected to the reverse thread section, the driving motor is connected to the connecting plate and is in transmission connection with the lead screw shaft, the first fixing part is connected to the lower part of the first moving block, the second fixing part is connected to the lower part of the second moving block, a first groove is provided on the first fixing part, and a second groove is provided on the second fixing part;

[0010] The cutting knife is provided with a first convex block matching the first groove in the X direction, and a second convex block matching the second groove in the reverse X direction of the cutting knife;

[0011] The fixing base is provided with a plurality of knife seat placement parts arranged along the Y direction. The knife seat placement parts are used to place cutting knives of different lengths. The fixing base is movably connected to the base along the Y direction;

[0012] The second driving member is used to drive the fixing base to move;

[0013] When the second driving member drives the fixing base to be in a certain state, the knife seat placement part is located below the first fixing part and the second fixing part.

[0014] Furthermore, the knife seat placement part is a rectangular connecting block, and the rectangular connecting block is provided with a limiting groove matching the cutting edge of the cutting knife.

[0015] Furthermore, the first driving member is a first air cylinder. The cylinder block of the first air cylinder is connected to the base, the axial direction of the cylinder block of the first air cylinder is the vertical direction, and the connecting plate is connected to the piston rod of the first air cylinder.

[0016] Furthermore, the second driving member is a second air cylinder. The cylinder block of the second air cylinder is connected to the base, the axial direction of the cylinder block of the second air cylinder is the Y direction, and the fixing base is connected to the piston rod of the second air cylinder.

[0017] Furthermore, the base is provided with a guide rail in the vertical direction. The axial direction of the guide rail is parallel to the axial direction of the first air cylinder, and the connecting plate is slidably connected to the guide rail.

[0018] The beneficial effect of the present utility model is that: compared with the prior art, through the connecting plate, the first fixing part, the second fixing part, the fixing base, the knife seat placement part and the second driving member, it avoids holding the cutting knife by hand for a long time, reduces the burden on the hand, and avoids being scratched by the cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a knife adjusting mechanism of a paper cutting machine according to a specific embodiment of the present utility model;

[0020] Figure 2 It is a front view of a knife adjusting mechanism of a paper cutting machine according to a specific embodiment of the present utility model;

[0021] Figure 3 It is Figure 2 the A-A cross-sectional view of

[0022] LABEL DESCRIPTION

[0023] 1. Base;

[0024] 2. Connecting plate;

[0025] 3. First driving member;

[0026] 4. Cutting assembly; 41. Lead screw shaft; 42. First moving block; 43. Second moving block; 44. Driving motor; 45. First fixing part; 451. First groove; 46. Second fixing part; 461. Second groove;

[0027] 5. Cutting knife; 51. First convex block; 52. Second convex block;

[0028] 6. Fixed seat; 61. Rectangular connecting block; 611. Limit groove;

[0029] 7. Second driving part;

[0030] 8. Guide rail. Detailed implementation manner

[0031] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the implementation manners and with reference to the drawings.

[0032] Please refer to Figures 1 to 3 , a knife adjusting mechanism of a paper cutter, comprising:

[0033] Base 1;

[0034] Connecting plate 2, the connecting plate 2 is movably connected to the base 1 in the vertical direction;

[0035] First driving part 3, the first driving part 3 is used to drive the connecting plate 2 to move;

[0036] Cutting assembly 4, the cutting assembly 4 is connected to the connecting plate 2, the cutting assembly 4 includes a lead screw shaft 41, a first moving block 42, a second moving block 43, a driving motor 44, a first fixing part 45 and a second fixing part 46, the lead screw shaft 41 is connected to the connecting plate 2, the axial direction of the lead screw shaft 41 is the X direction, the lead screw shaft 41 includes a positive thread section and a reverse thread section, the first moving block 42 is slidably connected to the positive thread section, the second moving block 43 is slidably connected to the reverse thread section, the driving motor 44 is connected to the connecting plate 2, the driving motor 44 is in transmission connection with the lead screw shaft 41, the first fixing part 45 is connected to the lower part of the first moving block 42, the second fixing part 46 is connected to the lower part of the second moving block 43, the first fixing part 45 is provided with a first groove 451, and the second fixing part 46 is provided with a second groove 461;

[0037] Cutting knife 5, the cutting knife 5 is provided with a first convex block 51 matching the first groove 451 in the X direction, and the cutting knife 5 is provided with a second convex block 52 matching the second groove 461 in the X reverse direction;

[0038] Fixed seat 6, the fixed seat 6 is provided with a plurality of knife seat placement parts arranged in the Y direction, the knife seat placement parts are used to place cutting knives 5 of different lengths, and the fixed seat 6 is movably connected to the base 1 in the Y direction;

[0039] A second driving member 7, which is used to drive the fixed seat 6 to move;

[0040] When the second driving member 7 drives the fixed seat 6 to be in a certain state, the tool seat placing portion is located below the first fixing portion 45 and the second fixing portion 46.

[0041] In the above embodiments, the cutting tool 5 includes a strip-shaped block, and a cutting edge portion is connected below the strip-shaped block. The cutting edge portion is placed in the limiting groove 611 so that the strip-shaped block is located above the limiting groove 611. When the cutting tool 5 needs to be installed, the second driving member 7 drives the fixed seat 6 to move so that the cutting tool 5 is located below the first fixing portion 45 and the second fixing portion 46. Then the driving is started so that the cutting tool 5 is located between the first fixing portion 45 and the second fixing portion 46. The first driving member 3 drives the connecting plate 2 to move downward so that the first convex block 51 of the cutting tool 5 is aligned with the first groove 451, and the second convex block 52 is aligned with the second groove 461. The driving motor 44 continues to drive the lead screw shaft 41 so that the first moving block 42 and the second moving block 43 approach each other, so that the first convex block 51 is inserted into the first groove 451, and the second convex block 52 is inserted into the second groove 461, thereby fixing the cutting tool 5 to the connecting plate 2. Then the first driving member 3 drives the connecting plate 2 to move upward, and the second driving member 7 drives the fixed seat 6 to move in the reverse direction along the Y direction. The paper is placed on the base 1, and the first driving member 3 is used to move downward to cut the paper. Compared with the prior art, through the connecting plate 2, the first fixing portion 45, the second fixing portion 46, the fixed seat 6, the tool seat placing portion and the second driving member 7, it is possible to avoid holding the cutting tool 5 by hand for a long time, reduce the burden on the hand, and avoid being scratched by the cutting tool 5.

[0042] As an alternative embodiment, the tool seat placing portion is a rectangular connecting block 61, and a limiting groove 611 matching the cutting edge of the cutting tool 5 is provided on the rectangular connecting block 61.

[0043] In the above embodiments, by matching the cutting edge of the cutting tool 5 with the limiting groove 611, the cutting tool 5 is fixed to the rectangular connecting plate 2 of the fixed seat 6, avoiding holding the cutting tool 5 by hand for a long time and reducing the damage to the hand.

[0044] As an alternative embodiment, the first driving member 3 is a first air cylinder. The cylinder block of the first air cylinder is connected to the base 1, the axial direction of the cylinder block of the first air cylinder is the vertical direction, and the connecting plate 2 is connected to the piston rod of the first air cylinder.

[0045] In the above embodiments, through the expansion and contraction of the first air cylinder, the connecting plate 2 moves in the vertical direction, so that the first groove 451 of the first fixing portion 45 can be matched with the first convex block 51 of the cutting tool 5, and the second fixing portion 46 and the second groove 461 can be matched with the second convex block 52 of the cutting tool 5.

[0046] As an alternative embodiment, the second driving member 7 is a second cylinder. The cylinder block of the second cylinder is connected to the base 1. The axial direction of the cylinder block of the second cylinder is the Y direction, and the fixing seat 6 is connected to the piston rod of the second cylinder.

[0047] As an alternative embodiment, a guide rail 8 in the vertical direction is provided on the base 1. The axial direction of the guide rail 8 is parallel to the axial direction of the first cylinder, and the connecting plate 2 is slidably connected to the guide rail 8.

[0048] In the above embodiments, by providing the guide rail 8, the connecting plate 2 can move stably in the vertical direction, ensuring the flatness of the cutting of the paper by the cutting knife 5.

[0049] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A knife adjustment mechanism for a paper cutter, characterized in that: include: Pedestal; A connecting plate, the connecting plate is movably connected to the base in a vertical direction; A first driving member, the first driving member is used to drive the connecting plate to move; A cutting assembly, the cutting assembly is connected to the connecting plate, the cutting assembly includes a screw shaft, a first moving block, a second moving block, a driving motor, a first fixing portion and a second fixing portion, the screw shaft is connected to the connecting plate, the axial direction of the screw shaft is the X direction, the screw shaft includes a positive thread segment and a negative thread segment, the first moving block is slidably connected to the positive thread segment, the second moving block is slidably connected to the negative thread segment, the driving motor is connected to the connecting plate, the driving motor is drivingly connected to the screw shaft, the first fixing portion is connected to the lower portion of the first moving block, the second fixing portion is connected to the lower portion of the second moving block, the first fixing portion is provided with a first groove, and the second fixing portion is provided with a second groove; A cutting knife, wherein the cutting knife is provided with a first protrusion matching the first groove in the X direction, and the cutting knife is provided with a second protrusion matching the second groove in the opposite direction of X; A fixed seat, on which a plurality of knife holder placement parts arranged along the Y direction are provided, the knife holder placement parts are used to place cutting knives of different lengths, and the fixed seat is movably connected to the base along the Y direction; A second driving member, the second driving member is used to drive the fixed seat to move; When the second driving member drives the fixing seat in a certain state, the knife seat placement portion is located below the first fixing portion and the second fixing portion.

2. The knife adjustment mechanism of the paper cutter according to claim 1, characterized in that: The knife seat placement part is a rectangular connecting block, and a limiting groove matching the blade of the cutting knife is provided on the rectangular connecting block.

3. The knife adjustment mechanism of the paper cutter according to claim 1, characterized in that: The first driving member is a first cylinder, the cylinder body of the first cylinder is connected to the base, the axial direction of the cylinder body of the first cylinder is in the vertical direction, and the connecting plate is connected to the piston rod of the first cylinder.

4. The knife adjustment mechanism of the paper cutter according to claim 1, characterized in that: The second driving member is a second cylinder, the cylinder body of the second cylinder is connected to the base, the axial direction of the cylinder body of the second cylinder is the Y direction, and the fixed seat is connected to the piston rod of the second cylinder.

5. The knife adjustment mechanism of the paper cutter according to claim 1, characterized in that: A guide rail is arranged on the base in a vertical direction, the axial direction of the guide rail is parallel to the axial direction of the first cylinder, and the connecting plate is slidably connected to the guide rail.

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