Device for switching cutter outlet stroke of movable blade of paper cutter

Abstract

The utility model relates to the technical field of paper cutters, in particular to a movable blade discharging stroke switching device of a paper cutter. When the driving motor drives the threaded rod to rotate in the direction where the threaded rod is close to the driving motor, the threaded rod drives the gear to rotate clockwise, so that the transmission piece moves from the position close to the axis of the gear to the position far away from the axis of the gear, and the first working position is the position close to the axis of the gear. The second working position is a position far away from the axis of the gear, namely, the gear moves from the first working position to the second working position; when the transmission part is located at the second working position, the cutter outlet stroke of the movable cutter assembly is long, and the full-cutting function is achieved. The device is simple in structure, and can achieve the conversion of a full-cutting function and a half-cutting function.

Description

Technical Field

[0001] This application relates to the field of paper cutter technology, and in particular to a paper cutter switching blade extension stroke device. Background Technology

[0002] The general uses of paper cutters mainly revolve around precise cutting, batch processing, and adaptability to diverse materials, and they are widely used in office, printing, packaging, advertising and other scenarios.

[0003] Existing paper cutters typically offer either full or partial cutting capabilities, making it difficult to switch between them on the same machine. Alternatively, switching the blade travel distance can be inconvenient.

[0004] Therefore, finding a suitable switching blade extension stroke device for paper cutters is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, in order to solve the problem of inconvenient switching of the moving blade's stroke in the existing technology, it is necessary to propose a device for switching the moving blade's stroke in a paper cutter, which has a simple structure and is easy to switch.

[0006] This application provides a device for switching the blade extension stroke of a paper cutter, comprising a drive motor, a transmission assembly, a blade assembly, and a back plate housing;

[0007] The transmission assembly includes a threaded rod, a gear, and a transmission component. The drive motor is connected to the threaded rod, and the threaded rod is meshed with the gear.

[0008] A limiting hole is provided at the position of the gear off the gear axis. The limiting hole has a first working position and a second working position. The gear and the transmission component are movably connected through the limiting hole. The transmission component is connected to the moving tool assembly after passing through the limiting hole.

[0009] The gear is connected to the back plate housing;

[0010] When the drive motor drives the threaded rod to rotate, the rotation of the threaded rod drives the gear to rotate, thereby driving the transmission component to switch the cutting tool assembly's cutting stroke at the first working position or the second working position.

[0011] Furthermore, the first working position is closer to the axis of the gear than the second working position.

[0012] Furthermore, the transmission assembly also includes a transmission disc with an elliptical through hole. The transmission component of the transmission assembly passes through the limiting hole of the gear, and the connecting end of the gear passes through the elliptical through hole. The connecting end of the gear is movably connected in the elliptical through hole.

[0013] Furthermore, it also includes a displacement detection switch, which is related to the position of the transmission disk, and the transmission disk rotates within its range of motion.

[0014] Furthermore, a raised cylinder is provided on the back plate housing facing the gear, the outer diameter of the raised cylinder is adapted to the inner diameter of the gear's shaft hole, and the gear is connected to the back plate housing through the raised cylinder.

[0015] Furthermore, a detection rod is provided extending from the transmission disk toward the detection displacement switch. The detection rod is used to detect the position of the transmission disk. When the gear rotates and drives the transmission component to move, the transmission component drives the transmission disk to rotate, and the position of the transmission disk is detected by the detection rod.

[0016] Furthermore, the moving blade assembly includes a transmission plate and a moving blade, wherein the transmission plate is connected to the moving blade;

[0017] The transmission plate is provided with an elongated opening, through which the transmission component passes. After the transmission component abuts against the transmission plate, when the transmission component moves to the first working position or the second working position, it drives the transmission plate to move, thereby switching the blade's outgoing stroke.

[0018] The advantages of the paper cutter blade extension stroke switching device provided by this utility model are as follows: When the threaded rod is driven by the drive motor to rotate in a direction away from the drive motor, the threaded rod drives the gear to rotate counterclockwise, so that the transmission component moves from a position far from the gear axis to a position close to the gear axis. The first working position is the position close to the gear axis, and the second working position is the position far from the gear axis, i.e., moving from the second working position to the first working position. When the transmission component is in the first working position, the blade extension stroke of the moving blade assembly is short, realizing the half-cut function. When the threaded rod is driven by the drive motor to rotate in a direction close to the drive motor, the threaded rod drives the gear to rotate clockwise, so that the transmission component moves from a position close to the gear axis to a position far from the gear axis. The first working position is the position close to the gear axis, and the second working position is the position far from the gear axis, i.e., moving from the first working position to the second working position. When the transmission component is in the second working position, the blade extension stroke of the moving blade assembly is long, realizing the full-cut function. The structure of this application is simple and can realize the conversion between full-cut and half-cut functions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is one of the switching blade extension stroke devices for a paper cutter in one embodiment;

[0021] Figure 2 This is a second device in one embodiment of the paper cutter for switching the blade extension stroke;

[0022] Figure 3 This is the third of the paper cutter blade switching and extension stroke devices in one embodiment;

[0023] Figure 4 This is the fourth of the paper cutter blade switching and extension stroke devices in one embodiment;

[0024] Figure 5 This is the fifth of the paper cutter blade switching and extension stroke devices in one embodiment;

[0025] Figure 6 This is the sixth of the paper cutter blade switching travel device in one embodiment;

[0026] Figure 7 This is the seventh of the paper cutter blade switching and extension stroke devices in one embodiment;

[0027] Figure label:

[0028] 100. Drive motor; 210. Threaded rod; 220. Gear; 221. Limiting hole; 2211. First working position; 2212. Second working position; 230. Transmission component; 240. Transmission disc; 241. Elliptical through hole; 300. Moving blade assembly; 310. Transmission plate; 311. Long opening; 320. Moving blade; 400. Back plate housing; 410. Protruding cylinder; 500. Displacement detection switch; 510. Detection rod; 600. Fixed blade; 700. Top cover. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] See Figures 1 to 7 As shown, this application provides a paper cutter switching blade 320 blade extension stroke device, including a drive motor 100, a transmission assembly, a blade assembly 300, and a back plate housing 400;

[0031] The transmission assembly includes a threaded rod 210, a gear 220, and a transmission component 230. The drive motor 100 is connected to the threaded rod 210, and the threaded rod 210 is meshed with the gear 220.

[0032] A limiting hole 221 is provided at the position of the gear 220 off the axis of the gear 220. The limiting hole 221 is provided with a first working position 2211 and a second working position 2212. The gear 220 and the transmission member 230 are movably connected through the limiting hole 221. After the transmission member 230 passes through the limiting hole 221, it is connected to the moving tool assembly 300.

[0033] The gear 220 is connected to the back plate housing 400;

[0034] When the drive motor 100 drives the threaded rod 210 to rotate, the rotation of the threaded rod 210 drives the gear 220 to rotate, thereby driving the transmission component 230 to switch the cutting stroke of the moving tool assembly 300 at the first working position 2211 or the second working position 2212.

[0035] Specifically, when the threaded rod 210 is driven to rotate away from the drive motor 100 by the drive motor 100, the threaded rod 210 drives the gear 220 to rotate counterclockwise, so that the transmission component 230 moves from a position far from the axis of the gear 220 to a position close to the axis of the gear 220. The first working position 2211 is the position close to the axis of the gear 220, and the second working position 2212 is the position far from the axis of the gear 220, that is, moving from the second working position 2212 to the first working position 2211. When the transmission component 230 is in the first working position 2211, the cutting tool assembly 300 has a shorter cutting stroke, realizing the half-cutting function.

[0036] When the threaded rod 210 is driven to rotate closer to the drive motor 100 by the drive motor 100, the threaded rod 210 drives the gear 220 to rotate clockwise, so that the transmission component 230 moves from a position closer to the axis of the gear 220 to a position farther from the axis of the gear 220. The first working position 2211 is the position closer to the axis of the gear 220, and the second working position 2212 is the position farther from the axis of the gear 220, that is, moving from the first working position 2211 to the second working position 2212. When the transmission component 230 is located at the second working position 2212, the cutting tool assembly 300 has a longer cutting stroke, realizing the full cutting function.

[0037] In one embodiment, the first working position 2211 is closer to the axis of the gear 220 than the second working position 2212.

[0038] Specifically, the first working position 2211 and the second working position 2212 are connected, and both the first working position 2211 and the second working position 2212 are adapted to the outer diameter of the transmission component 230.

[0039] In one embodiment, the transmission assembly further includes a transmission disk 240, on which an elliptical through hole 241 is provided. The transmission member 230 of the transmission assembly passes through the limiting hole 221 of the gear 220, and the connecting end of the gear 220 passes through the elliptical through hole 241. The connecting end of the gear 220 is movably connected in the elliptical through hole 241.

[0040] Specifically, the connecting end of gear 220, which connects to transmission disk 240 at its shaft center, passes through elliptical through hole 241. The major and minor axes of elliptical through hole 241 are both slightly larger than the outer diameter of the connecting end of gear 220, so that when gear 220 drives transmission component 230 to switch between the first working position 2211 and the second working position 2212, when gear 220 rotates and drives transmission component 230 from the first working position 2211 to the second working position 2212, gear 220 applies downward pressure to transmission component 230, and transmission disk 240 also moves downward, causing the connecting end of gear 220 to be located slightly above the elliptical through hole 241; when gear 220 rotates and drives transmission component 230 from the second working position 2212 to the first working position 2211, gear 220 applies upward pressure to transmission component 230, and transmission disk 240 also moves upward, causing the connecting end of gear 220 to be located slightly below the elliptical through hole 241.

[0041] In one embodiment, a displacement detection switch 500 is also included, which is connected to the shaft of the transmission disk 240, which rotates within a range of motion.

[0042] Specifically, when the transmission component 230 moves from the first working position 2211 to the second working position 2212, it drives the transmission disk 240 to rotate downward around the detection displacement switch 500. When the transmission component 230 moves from the second working position 2212 to the first working position 2211, it drives the transmission disk 240 to rotate upward around the detection displacement switch 500.

[0043] In one embodiment, a raised cylinder 410 is provided on the back plate housing 400 facing the gear 220. The outer diameter of the raised cylinder 410 is adapted to the inner diameter of the shaft hole of the gear 220. The gear 220 is connected to the back plate housing 400 through the raised cylinder 410.

[0044] Specifically, the gear 220 is connected to the back plate housing 400 via a protruding cylinder 410 on the back plate housing 400.

[0045] In one embodiment, a detection rod 510 is provided extending from the transmission disk 240 toward the detection displacement switch 500. The detection rod 510 is used to detect the position of the transmission disk 240. When the gear 220 rotates and drives the transmission member 230 to move, the transmission member 230 drives the transmission disk 240 to rotate, and the position of the transmission disk 240 is detected by the detection rod 510.

[0046] Specifically, the position of the rotating disk is detected by the detection rod 510 of the displacement switch 500.

[0047] In one embodiment, the moving blade assembly 300 includes a transmission plate 310 and a moving blade 320, wherein the transmission plate 310 is connected to the moving blade 320;

[0048] The transmission plate 310 is provided with an elongated opening 311. The transmission component 230 passes through the elongated opening 311. After the transmission component 230 abuts against the transmission plate 310, when the transmission component 230 moves to the first working position 2211 or the second working position 2212, it drives the transmission plate 310 to move and switches the cutting stroke of the moving blade 320.

[0049] Specifically, the transmission component 230 passes through the elongated opening 311 and is confined within the elongated opening 311. When the transmission component 230 is in the first working position 2211, it is closer to the axis of the gear 220, and the cutting stroke of the moving blade 320 is short. When the transmission component 230 is in the second working position 2212, it is farther from the axis of the gear 220, and the cutting stroke of the moving blade 320 is long, thus achieving full cutting.

[0050] It should be noted that an upper cover 700 is also provided, which has a sliding opening. The transmission plate 310 has two protrusions that are adapted to the sliding opening. The moving blade 320 moves back and forth along the direction away from or towards the fixed blade 600 under the drive of the transmission plate 310 to cut the paper. The transmission plate 310 is limitedly connected to the upper cover 700.

[0051] In one embodiment, the cutting edge of the moving blade 320 is V-shaped.

[0052] Specifically, the blade of the moving blade 320 is V-shaped. The closer the moving blade 320 is to the fixed blade 600, the larger the paper cutting range. Due to the limitation of the first working position 2211 and the second working position 2212, the paper cutting range of the transmission component 230 is the first range when it is in the first working position 2211, and the paper cutting range of the transmission component 230 is the second range when it is in the second working position, thereby realizing the full cutting or half cutting function.

[0053] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0055] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for switching the cutting stroke of a cutting knife of a paper cutting machine, characterized in that Drive motor, transmission assembly, moving blade assembly, backplate housing; The transmission assembly includes a threaded rod, a gear, and a transmission component. The drive motor is connected to the threaded rod, and the threaded rod is meshed with the gear. A limiting hole is provided at the position of the gear off the gear axis. The limiting hole has a first working position and a second working position. The gear and the transmission component are movably connected through the limiting hole. The transmission component is connected to the moving tool assembly after passing through the limiting hole. The gear is connected to the back plate housing; When the drive motor drives the threaded rod to rotate, the rotation of the threaded rod drives the gear to rotate, thereby driving the transmission component to switch the cutting tool assembly's cutting stroke at the first working position or the second working position.

2. The apparatus of claim 1, wherein, The first working position is closer to the axis of the gear than the second working position.

3. The apparatus of claim 1, wherein, The transmission assembly also includes a transmission disc with an elliptical through hole. The transmission component of the transmission assembly passes through the limiting hole of the gear, and the connecting end of the gear passes through the elliptical through hole. The connecting end of the gear is movably connected in the elliptical through hole.

4. The guillotine switching blade kiss cut travel device of claim 3, wherein, It also includes a displacement detection switch, which is used to detect the position of the transmission disk, which rotates within its range of motion.

5. The apparatus of claim 1, wherein, A raised cylinder is provided on the back plate housing facing the gear. The outer diameter of the raised cylinder is adapted to the inner diameter of the shaft hole of the gear. The gear is connected to the back plate housing through the raised cylinder.

6. The guillotine switching blade kiss cut travel device of claim 4, wherein, A detection rod is provided extending from the transmission disk toward the displacement detection switch. The detection rod is used to detect the position of the transmission disk. When the gear rotates and drives the transmission component to move, the transmission component drives the transmission disk to rotate, and the position of the transmission disk is detected by the detection rod.

7. The guillotine switching blade kiss cut travel device of claim 6, wherein, The moving blade assembly includes a transmission plate and a moving blade, wherein the transmission plate is connected to the moving blade. The transmission plate is provided with an elongated opening, through which the transmission component passes. After the transmission component abuts against the transmission plate, when the transmission component moves to the first working position or the second working position, it drives the transmission plate to move, thereby switching the blade's outgoing stroke.

8. The guillotine switching blade kiss cut travel device of claim 7, wherein, The cutting edge of the moving blade is V-shaped.

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