An adjustable multi-gauge paper cutting device

Abstract

The utility model discloses an adjustable multi-specification paper cutting equipment, including frame, the work table of setting on frame and set above the cutting mechanism of work table, still include movable locating's back baffle subassembly, adjusting mechanism, paper pressing mechanism and a pair of synchronous movable side positioning subassembly, paper pressing mechanism sets up between cutting mechanism and back baffle subassembly, back baffle subassembly is along the length direction of work table and is slidably arranged on work table, is used for limiting the cutting length of paper, side positioning subassembly is symmetrically arranged on both sides of work table width direction. Overall realization multi-specification adaptation, high accuracy cutting and efficient operation, adapt to the multi -field demand such as office, printing, packaging.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, specifically an adjustable multi-specification paper cutting device. Background Technology

[0002] Paper cutting equipment is widely used to meet the cutting needs of different paper sizes in office, printing, and packaging industries. However, existing equipment has many shortcomings: most equipment has poor compatibility with different specifications, requiring disassembly and reassembly of parts to change cutting specifications, which is cumbersome and inefficient; length and width adjustments are mostly independent mechanisms, and asynchronous adjustments can easily cause the paper to shift off-center from the worktable, resulting in uneven cutting errors; the paper pressing mechanism often interferes with the back baffle assembly, either failing to effectively press the paper and causing cutting slippage, or damaging the components; when cutting long paper, the worktable has insufficient bearing capacity, and the paper is prone to drooping and shifting when suspended, affecting positioning accuracy; the positioning rulers are mostly opaque, which not only obstructs the view and makes it difficult to observe the fit between the paper and the positioning components, but also requires additional measurement, resulting in large human error (usually ≥1mm), making it difficult to meet the requirements of high-precision cutting. There is an urgent need to optimize the structure to solve the above problems. Utility Model Content

[0003] In order to overcome the shortcomings of existing technical solutions, this utility model provides an adjustable multi-specification paper cutting device, which can effectively solve the problems mentioned in the background technology.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An adjustable multi-specification paper cutting device includes a frame, a worktable mounted on the frame, and a cutting mechanism mounted above the worktable. It also includes a movable and positionable back baffle assembly, an adjustment mechanism, a paper pressing mechanism, and a pair of synchronously movable side positioning components. The paper pressing mechanism is located between the cutting mechanism and the back baffle assembly. The back baffle assembly is slidably mounted on the worktable along its length direction to limit the cutting length of the paper. The side positioning components are symmetrically arranged on both sides of the worktable in its width direction.

[0006] The adjustment mechanism is mounted on the worktable. The adjustment mechanism includes a linkage spindle, a first adjustment component, and a second adjustment component. The linkage spindle is arranged along the width direction of the worktable and is rotatable. The first adjustment component is connected to one end of the linkage spindle. The second adjustment component includes a first lead screw and a second lead screw symmetrically arranged on both sides of the linkage spindle.

[0007] The side positioning assembly includes a side baffle and a nut seat fixed to the side baffle. The first lead screw is threadedly engaged with one of the nut seats, and the second lead screw is threadedly engaged with the other nut seat. The first lead screw and the second lead screw are synchronously connected to the linkage spindle through a transmission pair, and the threads of the first lead screw and the second lead screw have opposite directions.

[0008] As a further description of the above technical solution, the paper pressing mechanism includes a pressing plate and a lifting drive component for driving the pressing plate to rise and fall. The bottom of the pressing plate is provided with a clearance groove for avoiding the top of the rear baffle assembly.

[0009] As a further description of the above technical solution, the first adjustment component includes an adjustment handwheel, which is connected to the rear baffle assembly via a transmission shaft, and the rear baffle assembly includes a baffle body.

[0010] As a further description of the above technical solution, the workbench is provided with a material carrier plate, a locking device on the material carrier plate, and guide rails on both sides of the bottom of the material carrier plate along its length. The material carrier plate is provided with a slider connected to the guide rails.

[0011] As a further description of the above technical solution, a rack is provided on the guide rail along its length direction, and the locking device includes a gear meshing with the rack and a driver for driving the gear.

[0012] As a further description of the above technical solution, the inner wall of the side baffle is provided with an elastic pressure strip extending along its length.

[0013] As a further description of the above technical solution, guide rods are provided on both sides of the worktable in the width direction, and guide sleeves that slide with the guide rods are provided on the nut seat.

[0014] As a further description of the above technical solution, the cross-section of the clearance groove is inverted trapezoidal or V-shaped and extends through the length of the pressure plate, and a flexible anti-slip layer is provided on the lower surface of the pressure plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model discloses an adjustable multi-specification paper cutting device, which has at least one of the following beneficial effects during use:

[0017] The adjustment mechanism synchronously controls the rear baffle (length) and side positioning components (width) via a linked main shaft, eliminating the cumbersome process of adjusting multiple components individually. The side positioning components, guided by a reverse lead screw and guide rod, ensure the paper is aligned with the center of the worktable, reducing edge unevenness errors. The elastic pressure strip on the side baffle also protects the paper and prevents cutting displacement. The paper pressing mechanism's clearance groove avoids interference with the rear baffle, and its flexible anti-slip layer and adjustable pressure design provide stable paper pressing without damaging the paper. The feed plate can extend to support long sheets of paper, and the gear and rack locking design ensures no slippage. The transparent integrated ruler allows for intuitive reading and observation of paper fit, controlling human error to within 0.3mm. Overall, it achieves multi-specification adaptability, high-precision cutting, and efficient operation, meeting the needs of various fields such as office, printing, and packaging. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an adjustable multi-specification paper cutting device according to the present invention.

[0019] Figure 2 This is a top view schematic diagram of an adjustable multi-specification paper cutting device according to the present invention;

[0020] Figure 3 This is a schematic diagram of the first side view of an adjustable multi-specification paper cutting device according to the present invention.

[0021] Figure 4 This is a schematic diagram of the second side structure of an adjustable multi-specification paper cutting device according to the present invention.

[0022] Numbering on the map:

[0023] 1. Frame; 101. Workbench; 102. Cutting mechanism; 103. Guide rail; 104. Locking device; 105. Material carrier plate; 2. Back baffle assembly; 201. Baffle body; 202. Linkage spindle; 3. Adjustment mechanism; 301. First adjustment component; 302. Second adjustment component; 303. First lead screw; 304. Second lead screw; 305. Adjustment handwheel; 306. Drive shaft; 4. Paper pressing mechanism; 401. Pressing plate; 402. Lifting drive component; 403. Guide rod; 5. Side positioning assembly; 501. Side baffle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-4 As shown, this utility model provides an adjustable multi-specification paper cutting device, including a frame 1, a worktable 101 disposed on the frame 1, and a cutting mechanism 102 disposed above the worktable 101. The device is characterized by further including a movable rear baffle assembly 2, an adjustment mechanism 3, a paper pressing mechanism 4, and a pair of synchronously movable side positioning components 5. The paper pressing mechanism 4 is disposed between the cutting mechanism 102 and the rear baffle assembly 2. The rear baffle assembly 2 is slidably disposed on the worktable 101 along its length direction to limit the cutting length of the paper. The side positioning components 5 are symmetrically disposed on both sides of the worktable 101 in its width direction.

[0026] In this embodiment, the adjustment mechanism 3 synchronously controls the rear baffle (length) and the side positioning component 5 (width) through the centralized transmission of the linkage spindle 202, avoiding the errors and cumbersome process of adjusting multiple components individually. The linkage spindle 202 is set along the width direction of the worktable 101, with one end connected to the "first adjustment component 301 for rear baffle adjustment", and both sides connected to the "first lead screw 303 / second lead screw 304 of the second adjustment component 302" through "transmission pairs (such as gear pairs, pulleys)".

[0027] The adjustment mechanism 3 is disposed on the worktable 101. The adjustment mechanism 3 includes a linkage spindle 202, a first adjustment component 301 and a second adjustment component 302. The linkage spindle 202 is disposed along the width direction of the worktable 101 and is rotatable. The first adjustment component 301 is connected to one end of the linkage spindle 202. The second adjustment component 302 includes a first lead screw 303 and a second lead screw 304 symmetrically disposed on both sides of the linkage spindle 202.

[0028] The operator rotates the adjustment handwheel 305 of the first adjustment component 301. The handwheel transmits torque to the rear baffle assembly 2 through the transmission shaft 306, driving the rear baffle to slide along the length of the worktable 101 (in conjunction with the guide rail 103 / slider structure), thereby achieving precise adjustment of the "cutting length".

[0029] When the main shaft 202 rotates, it synchronously drives the first lead screw 303 and the second lead screw 304 on both sides (the two are coaxial and opposite in design) through the transmission pair. Since the first lead screw 303 and the second lead screw 304 have opposite threads and are threadedly engaged with the "nut seats" of the side positioning components 5 on both sides, when the lead screws rotate, the two nut seats will drive the side baffles 501 to "synchronously move in opposite directions" (i.e., one side moves outward and the other side moves inward, or both sides move towards the center / outward at the same time).

[0030] The side positioning assembly 5 includes a side baffle 501 and a nut seat fixedly connected to the side baffle 501. The first lead screw 303 is threadedly engaged with one of the nut seats, and the second lead screw 304 is threadedly engaged with the other nut seat. The first lead screw 303 and the second lead screw 304 are synchronously connected to the linkage spindle 202 through a transmission pair, and the threads of the first lead screw 303 and the second lead screw 304 have opposite directions of rotation. (This ensures that the side baffle 501 always moves symmetrically around the center of the worktable 101 during adjustment, avoiding the paper from "offsetting the center" in the width direction and reducing the error of "uneven edge distance" in subsequent cutting (such as inconsistent width of the paper on the left and right sides after cutting).

[0031] Furthermore, the paper pressing mechanism 4 includes a pressing plate 401 and a lifting drive 402 for driving the pressing plate 401 to rise and fall. The bottom of the pressing plate 401 is provided with a clearance groove for avoiding the top of the rear baffle assembly 2.

[0032] After positioning, the lifting drive 402 drives the pressure plate 401 downward until the flexible anti-slip layer adheres to the upper surface of the paper. The flexible material can adapt to the slight unevenness of the paper, increasing friction and preventing the paper from "slipping back and forth" during cutting. The "avoidance groove" (inverted trapezoidal / V-shaped cross-section, running through the length of the pressure plate 401) at the bottom of the pressure plate 401 is a key design feature: since the top of the rear baffle assembly 2 is higher than the worktable 101, the avoidance groove can completely avoid the rear baffle, preventing mechanical interference between the pressure plate 401 and the rear baffle when it descends (solving the problem of "conflict between paper pressing and positioning baffle" in traditional equipment). The "adjustable pressure" feature of the lifting drive 402 allows the pressure of the pressure plate 401 to be adjusted according to the paper thickness (such as single sheet or stacked paper), ensuring stable paper locking while avoiding damage to the paper.

[0033] Furthermore, the first adjustment component 301 includes an adjustment handwheel 305, which is connected to the rear baffle assembly 2 via a transmission shaft 306. The rear baffle assembly 2 includes a baffle body 201.

[0034] The rear baffle assembly 2 includes a "baffle body 201", the bottom of which engages with the guide rail 103 / slider of the worktable 101 (or is connected to the lead screw structure of the transmission shaft 306) and is driven by the adjustment handwheel 305 of the first adjustment assembly 301.

[0035] The operator rotates the adjusting handwheel 305 according to the length of the paper to be cut. The transmission shaft 306, through a lead screw-nut transmission (or gear-rack transmission), converts the rotational motion of the handwheel into the linear sliding of the rear baffle. Adjustment stops when the rear baffle is aligned with the first scale mark of the integrated positioning scale—the first scale mark directly corresponds to the distance between the rear baffle position and the cutting blade, i.e., the final cutting length of the paper. The paper is placed on the worktable 101, with the rear end of the paper fitting against the rear baffle. The flatness of the rear baffle (an implicit technical requirement) ensures that the edges of the paper are flush, avoiding length errors caused by baffle tilt.

[0036] Furthermore, the workbench 101 is provided with a material carrier plate 105, a locking device 104 on the material carrier plate 105, and guide rails 103 on both sides of the bottom of the material carrier plate 105 along its length. The material carrier plate 105 is provided with a slider connected to the guide rails 103.

[0037] Furthermore, a rack is provided on the guide rail 103 along its length direction, and the locking device 104 includes a gear that meshes with the rack and a driver for driving the gear.

[0038] The material carrier plate 105 is arranged along the length of the workbench 101, and "sliders" are provided on both sides of the bottom, which slide in cooperation with the "guide rail 103" of the workbench 101; a "rack" is provided on the guide rail 103, and the locking device 104 includes "a gear that meshes with the rack + a driver (such as a motor or manual knob)".

[0039] When cutting long sheets of paper, the carrier plate 105 can slide along the guide rail 103, extending the bearing length of the worktable 101 and preventing the paper from sagging at the edges and shifting its position due to being "suspended". After the carrier plate 105 is adjusted to the appropriate length, the driver drives the gear to rotate, and the gear meshes with the rack to "lock" the carrier plate 105 (the pitch accuracy of the rack ensures that there is no movement in the locked position), ensuring that the carrier plate 105 does not shift during the cutting process, further improving the stability of paper positioning.

[0040] Furthermore, the inner wall of the side baffle 501 is provided with an elastic pressure strip extending along its length.

[0041] When the main shaft 202 drives the first / second lead screw 304 to rotate, the nut seat moves linearly along the lead screw. The cooperation between the guide rod 403 and the guide sleeve restricts the rotational freedom of the nut seat, ensuring that the side baffle 501 only moves in the width direction (avoiding the side baffle 501 tilting and causing the paper to "skew"). After the paper is placed in, the two side baffles 501 move towards the paper simultaneously, and the inner "elastic pressure strip" (such as rubber material) contacts the edge of the paper—the elastic design avoids scratching the paper with hard contact and generates "clamping force" through elastic deformation to prevent the paper from shifting in the width direction during cutting. The position of the side baffle 501 is visualized through the "second scale of the integrated positioning ruler," allowing operators to directly read the width dimension without the need for additional ruler measurement.

[0042] Furthermore, guide rods 403 are provided on both sides of the workbench 101 in the width direction, and guide sleeves that slide with the guide rods 403 are provided on the nut seat.

[0043] Furthermore, the cross-section of the clearance groove is inverted trapezoidal or V-shaped and extends along the length of the pressure plate 401. A flexible anti-slip layer is provided on the lower surface of the pressure plate 401.

[0044] It also includes an integrated positioning scale, which is fixedly installed on the front edge of the workbench 101. The integrated positioning scale has a first scale corresponding to the position of the rear baffle assembly 2 and a second scale corresponding to the positions of the two side baffles 501. The integrated positioning scale is made of transparent material, and the first and second scales are set on the surface of the scale.

[0045] The ruler is fixed to the front edge of the workbench 101 and is made of transparent material (such as acrylic or high-transparency PC). Its surface has a "first scale mark (corresponding to the rear baffle position)" and a "second scale mark (corresponding to the side baffle 501 position)". The transparent material ensures that the operator can "observe the fit between the paper edge and the positioning component through the ruler," avoiding adjustment deviations caused by obstructing the view of traditional opaque rulers. The first scale mark directly indicates the "distance from the rear baffle to the cutting blade" (i.e., cutting length), and the second scale mark indicates the "distance between the two side baffles 501" (i.e., cutting width). No additional measuring tape is needed, allowing for a one-step "adjustment-reading" process, reducing human measurement error (traditional equipment measurement error ≥1mm, this design can control the error within 0.3mm).

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable multi-specification paper cutting device, comprising a frame, a worktable mounted on the frame, and a cutting mechanism mounted above the worktable, characterized in that, It also includes a movable and positionable rear baffle assembly, an adjustment mechanism, a paper pressing mechanism, and a pair of synchronously movable side positioning components. The paper pressing mechanism is disposed between the cutting mechanism and the rear baffle assembly. The rear baffle assembly is slidably disposed on the worktable along the length direction of the worktable to limit the cutting length of the paper. The side positioning components are symmetrically disposed on both sides of the worktable in the width direction. The adjustment mechanism is mounted on the worktable. The adjustment mechanism includes a linkage spindle, a first adjustment component, and a second adjustment component. The linkage spindle is arranged along the width direction of the worktable and is rotatable. The first adjustment component is connected to one end of the linkage spindle. The second adjustment component includes a first lead screw and a second lead screw symmetrically arranged on both sides of the linkage spindle. The side positioning assembly includes a side baffle and a nut seat fixed to the side baffle. The first lead screw is threadedly engaged with one of the nut seats, and the second lead screw is threadedly engaged with the other nut seat. The first lead screw and the second lead screw are synchronously connected to the linkage spindle through a transmission pair, and the threads of the first lead screw and the second lead screw have opposite directions.

2. The adjustable multi-specification paper cutting device according to claim 1, characterized in that: The paper pressing mechanism includes a pressing plate and a lifting drive for driving the pressing plate to rise and fall. The bottom of the pressing plate is provided with a clearance groove for avoiding the top of the rear baffle assembly.

3. The adjustable multi-specification paper cutting device according to claim 1, characterized in that: The first adjustment component includes an adjustment handwheel, which is connected to the rear baffle assembly via a drive shaft. The rear baffle assembly includes a baffle body.

4. The adjustable multi-specification paper cutting device according to claim 1, characterized in that: The workbench is provided with a material carrier plate along its length, a locking device on the material carrier plate, and guide rails on both sides of the bottom of the material carrier plate. The material carrier plate is provided with a slider connected to the guide rails.

5. The adjustable multi-specification paper cutting device according to claim 4, characterized in that: A rack is provided on the guide rail along its length, and the locking device includes a gear that meshes with the rack and a driver for driving the gear.

6. The adjustable multi-specification paper cutting device according to claim 1, characterized in that: The inner wall of the side baffle is provided with an elastic pressure strip extending along its length.

7. The adjustable multi-specification paper cutting device according to claim 1, characterized in that: Guide rods are provided on both sides of the workbench in the width direction, and guide sleeves that slide with the guide rods are provided on the nut seat.

8. The adjustable multi-specification paper cutting device according to claim 2, characterized in that: The cross-section of the clearance groove is inverted trapezoidal or V-shaped and extends along the length of the pressure plate. A flexible anti-slip layer is provided on the lower surface of the pressure plate.

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