Cutter mechanism for realizing semi-cutting and full-cutting and printer comprising same

Abstract

The utility model discloses a cutter mechanism for realizing semi-cutting and full-cutting and a printer comprising the cutter mechanism. The cutter mechanism comprises a supporting frame, an upper cutter rest assembly, a cutting board assembly, a driving motor and a gear transmission assembly. The upper cutter rest assembly comprises a sliding rail assembly, a cutter support and an upper cutter. A main shaft of the chopping board assembly is provided with two planes which are adjacent to each other and form a 90-degree angle, and the flexible cutter strip and the lower cutter are fixed on the two planes respectively; the gear transmission assembly drives the upper knife rest assembly and the cutting board assembly to move relatively under the action of the driving motor, and semi-cutting or full-cutting action is achieved. And the full-half cutting conversion assembly can achieve rotation of a main shaft in the cutting board assembly, and conversion between the flexible cutter strip and the lower cutter is completed. Through the coaxial arrangement of the flexible cutter strip and the lower cutter and the arrangement of the cam surfaces of the large cam gear and the small cam gear, under the driving of the positive and negative rotation of the driving motor, the full-cutting and half-cutting functions can be realized, the automatic switching of the full-cutting and half-cutting functions can also be realized, the automation degree is high, and different cutting requirements of customers are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a printer field especially, it is a kind of cutter mechanism for realizing half cutting and full cutting and the printer including it. BACKGROUND

[0002] At present, cutter mechanism is included in printer, for cutting linear or strip flexible medium after printing.Most of existing cutter mechanism can only realize single half cutting or single full cutting of medium.A few printers for realizing full cutting and half cutting function simultaneously install two modules in printer, one is used to realize half cutting, another is used to realize full cutting.The structure leads to segment length inaccuracy of cutting medium due to the position difference of full cutting and half cutting, and affects product quality.Some printers integrate full cutting mechanism and half cutting mechanism in same cutter mechanism, but full cutting and half cutting function conversion needs manual operation to realize, leading to inconvenient operation and poor customer experience.The existing cutting form also has limitation, which affects the application range of printer.

[0003] Therefore, the cutter mechanism of existing printer still has inconvenience and defects, and needs to be further improved.How to create a new cutter mechanism for realizing half cutting and full cutting and the printer including it, so that half cutting and full cutting function can be realized in same module by structural improvement, and automatic conversion of half cutting and full cutting function can be realized, cutting efficiency is high, different cutting form needs of customer can be satisfied, and the use range is wide, which becomes the current industry's improvement goal. CONTENT OF UTILITY MODEL

[0004] The utility model solves technical problem to provide a kind of cutter mechanism for realizing half cutting and full cutting, so that half cutting and full cutting function can be realized in same module by structural improvement, and automatic conversion of half cutting and full cutting function can be realized, cutting efficiency is high, different cutting form needs of customer can be satisfied, and the use range is wide, to overcome the deficiency of existing cutter mechanism.

[0005] To solve the above technical problems, the utility model provides a kind of cutter mechanism for realizing half cutting and full cutting, including support frame and the upper knife rest assembly, anvil plate assembly, driving motor and gear transmission assembly being arranged on the support frame,

[0006] The support frame includes front side wall, rear side wall, left side wall and right side wall;

[0007] The upper cutter holder assembly comprises a slide rail assembly, a cutter support and an upper cutter. The slide rail assembly comprises two guide rails and a slide block arranged in the guide rails. The two guide rails are symmetrically arranged on the inner walls of the left and right side walls. The cutter support is a square frame. The upper part of the square frame is provided with the upper cutter with a downward cutting edge. The lower part of the square frame is provided with a roller at the middle position. The roller shaft of the roller is perpendicular to the cutting edge surface of the upper cutter. The two sides of the square frame are fixedly connected with the slide blocks in the two guide rails, so as to realize the up-down movement of the square frame along the guide rails.

[0008] The anvil assembly comprises a main shaft. The two ends of the main shaft are rotatably arranged on the left and right side walls. The middle part of the main shaft is provided with two adjacent planes at an angle of 90 degrees. A flexible blade is fixed on one plane for realizing the half-cutting function opposite to the upper cutter. A lower cutter is fixed on the other plane for realizing the full-cutting function tangent to the upper cutter.

[0009] The driving motor is arranged outside the rear side wall, and the motor shaft end extends into the inside of the support frame.

[0010] The gear transmission assembly comprises a reduction gear and a large cam gear. The reduction gear is meshed with the shaft end gear of the driving motor and the large cam gear. One side of the large cam gear is provided with a cam. The outer side surface of the cam is in contact with the roller at the lower part of the cutter support. When the large cam gear rotates under the driving of the driving motor, the large cam gear can drive the cutter support to slide up and down through the action with the roller, and then drive the upper cutter to move up and down, so as to realize the relative movement of the upper cutter and the flexible blade or the lower cutter in the anvil assembly, and complete the half-cutting or full-cutting action.

[0011] Further improvement, the other side of the large cam gear is provided with an arc-shaped skirt. The arc-shaped skirt is provided with a first gap. The cutter mechanism further comprises a position sensor for detecting the first gap to obtain the 0 point position of the large cam gear.

[0012] Further improvement, the arc-shaped skirt is further provided with a second gap for cooperating with the position sensor to obtain the pre-half-cutting position or the pre-full-cutting position of the large cam gear.

[0013] Further improvement, the widths of the first gap and the second gap are different.

[0014] Further improvement, the upper cutter holder assembly further comprises a return spring. One end of the return spring is connected with the bottom of the cutter support, and the other end of the return spring is connected with the support frame, so as to realize the automatic return of the cutter support after cutting.

[0015] Further improvement, the lower cutter adopts a V-shaped structure.

[0016] Further improvement, still includes full half cut conversion assembly, the full half cut conversion assembly includes transmission gear set, small cam gear and conversion mechanism, the transmission gear set is engaged with the big cam gear and small cam gear respectively, one side of the small cam gear is provided with a half closed cam, the half closed cam has an inner arc surface and an outer arc surface, the inner arc surface has a constant diameter arc surface, and the outer arc surface is a variable diameter arc surface; the conversion mechanism comprises a conversion plate and a reversing spring, one end of the conversion plate is rotatably connected to the front side wall, the other end is connected to the main shaft of the anvil plate assembly through the reversing spring, the middle of the conversion plate is provided with a rotating wheel, the rotating wheel is matched with the inner and outer arc surfaces of the half closed cam of the small cam gear, then the small cam gear rotates under the driving of the big cam gear, when the rotating wheel and the inner arc surface of the half closed cam form a sliding surface, the conversion plate does not act, when the rotating wheel and the outer arc surface of the half closed cam form a sliding surface, the conversion plate is driven downward by the half closed cam, and then drives the reversing spring to pull the main shaft to rotate until the main shaft rotates 90 degrees, and the conversion of the flexible blade strip and the lower cutting knife in the anvil plate assembly is completed.

[0017] Further improvement, the outer arc surface of the half closed cam further comprises a constant diameter arc surface connected with the variable diameter arc surface, for keeping the main shaft stationary after rotating 90 degrees.

[0018] Further improvement, one end of the main shaft is fixed with a limiting block, one end of the limiting block is connected with the reversing spring, for realizing the rotation of the main shaft under the action of the pulling force of the reversing spring, and the other end of the main shaft is provided with a retaining spring, for realizing the automatic return of the main shaft when there is no pulling force.

[0019] As another improvement of the utility model, the utility model also provides a printer. The printer comprises the cutting knife mechanism for realizing half cutting and full cutting.

[0020] After adopting such design, the utility model has at least the following advantages:

[0021] 1. The cutting knife mechanism of the utility model can realize the coaxial arrangement of the flexible blade strip and the lower cutting knife through the arrangement of the anvil plate main shaft with two planes, realize the up-down sliding of the upper cutting knife through the driving of the big cam gear, make the upper cutting knife correspond to the flexible blade strip or the lower cutting knife respectively, complete the full cutting and half cutting functions in one module, and the cutting position is fixed, the medium segmentation length is not affected, the cutting efficiency is improved, and the cutting quality is enhanced. It can also be used for the cutting demand of different media, and has wide application range.

[0022] 2. Still through the position sensor and the setting of the first gap and the second gap, the position of the large cam gear can be accurately detected, the control of accurate cutting is met, and the pre-half cutting and pre-full cutting functions are met, the cutting time is greatly saved, and the efficiency is improved.

[0023] 3. Still through the setting of the full and half cutting conversion assembly, the automatic conversion of the full cutting and half cutting functions can be realized, manual operation is not needed, the degree of automation is high, the needs of customers for various cutting forms are met, and the user experience is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, the utility model will be further described in detail in combination with the drawings and the specific embodiment.

[0025] Figure 1 is the structure of the cutting knife mechanism in the initial position of the utility model.

[0026] Figure 2 is the structure of the cutting knife mechanism in the initial position of the utility model.

[0027] Figure 3 is the structure of the sliding rail assembly in the cutting knife mechanism of the utility model.

[0028] Figure 4 is the structure of the cutting knife support in the cutting knife mechanism of the utility model.

[0029] Figure 5 is the structure of the cutting knife support in the cutting knife mechanism of the utility model.

[0030] Figure 6 is the structure of the anvil assembly in the cutting knife mechanism of the utility model.

[0031] Figure 7 and Figure 8 is the structure of the large cam gear in the cutting knife mechanism of the utility model.

[0032] Figure 9 is the structure of the small cam gear in the cutting knife mechanism of the utility model.

[0033] Figure 10 is the structure of the conversion plate in the cutting knife mechanism of the utility model.

[0034] Figure 11 is the structure of the cutting knife mechanism in the half cutting completion position of the utility model.

[0035] Figure 12 is the structure of the cutting knife mechanism in the half cutting completion position of the utility model.

[0036] Figure 13 is the structure of the cutter mechanism of the utility model in the pre-half cutting position main view schematic diagram.

[0037] Figure 14 is the structure of the cutter mechanism of the utility model in the pre-half cutting position three-dimensional schematic diagram.

[0038] Figure 15 is the structure of the cutter mechanism of the utility model in the full cutting completion position main view schematic diagram.

[0039] Figure 16 is the structure of the cutter mechanism of the utility model in the full cutting completion position three-dimensional schematic diagram.

[0040] Figure 17 is the side view of the cutter mechanism (for indicating the printing medium into the cutter mechanism). DETAILED DESCRIPTION

[0041] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0042] The cutter mechanism of the present application is used to realize the half cutting and full cutting functions of the printing medium. The printing medium is, but is not limited to, heat shrink tube, sleeve, sticker, signboard, etc. The half cutting function refers to cutting the heat shrink tube and sleeve type printing medium along the cross section by a certain thickness, leaving a thickness of 0.05-0.07mm for connection, which can be torn open manually, while ensuring that the cut surface is smooth and free of burrs; for the sticker type printing medium, the face paper is completely cut, and the bottom paper is not cut, which facilitates the separation and use of the bottom paper and the face paper by the customer. The full cutting function is to cut the heat shrink tube and sleeve directly along the cross section, so that the printing medium is completely separated before and after.

[0043] Referring to FIGS. 1-5, Figure 1 and 2 the cutter mechanism of the present embodiment includes a support frame 1, an upper knife holder assembly 2, an anvil plate assembly 3, a driving motor 4 and a gear transmission assembly 5 arranged on the support frame 1.

[0044] The support frame 1 of the present embodiment includes a front side wall 11, a rear side wall 12, a left side wall 13, a right side wall 14 and a bottom plate, which belongs to the main frame of the cutter mechanism and provides a mounting surface for other components.

[0045] The upper knife holder assembly 2 includes a slide rail assembly 21, a cutter support 22 and an upper cutter 23. Specifically, as shown in FIGS. 6-8,Figure 1 and 3 As shown in the drawings, the slide rail assembly 21 comprises two guide rails 211 and a sliding block 212 arranged in the guide rails 211, and the two guide rails 211 are symmetrically arranged on the inner walls of the rear side wall 12. Referring to the drawings again, Figure 4 and 5 As shown in the drawings, the cutter support 22 adopts a square frame, the upper part of the square frame is provided with the upper cutter 23 with the blade downward, the lower part of the square frame is provided with a roller 221 at the middle position, the roller shaft 222 of the roller 221 is perpendicular to the blade face of the upper cutter 23. The two side parts of the square frame are fixedly connected with the sliding blocks 212 in the two guide rails 211 respectively, so as to realize the up-down movement of the square frame along the guide rails 211.

[0046] Referring to the drawings again, Figure 6 As shown in the drawings, the cutting board assembly 3 comprises a main shaft 31, the two ends of the main shaft 31 are rotatably arranged on the left side wall 13 and the right side wall 14 through shaft sleeves 32 respectively, and the middle part of the main shaft 31 is provided with two adjacent planes at 90 degrees, one plane is fixed with a flexible blade 33, which is used to realize the half-cutting function opposite to the upper cutter 23, and the other plane is fixed with a lower cutter 34, which is used to realize the full-cutting function tangent to the upper cutter 23. Among them, the lower cutter 34 adopts a V-shaped structure, which can better keep the cutting position of the medium fixed.

[0047] In the embodiment, the driving motor 4 is arranged outside the rear side wall 12, and the motor shaft end extends into the inside of the support frame 1.

[0048] Referring to the drawings again, Figure 1 and 2 As shown in the drawings, the gear transmission assembly 5 comprises a reduction gear 51 and a large cam gear 52, and the reduction gear 51 is engaged with the shaft end gear 41 of the driving motor 4 and the large cam gear 52 respectively. In the embodiment, the reduction gear 51 adopts a double-layer gear, the gear shaft of which is fixed on the rear side wall 12, the lower large gear end of which is engaged with the shaft end gear 41 of the driving motor 4, and the upper small gear end of which is engaged with the large cam gear 52. The large cam gear 52 is fixed on the front side wall 11 and the rear side wall 12 through a large cam shaft, and one side of the large cam gear 52 is provided with a cam 521, as shown in the drawings. Figure 7 As shown in the drawings, the outer side face of the cam 521 is in contact with the roller 221 at the lower part of the cutter support 22, forming a sliding surface. When the large cam gear 52 rotates under the driving of the driving motor 4, it can drive the cutter support 22 to slide up and down through the action with the roller 221, and then drive the upper cutter 23 to move up and down, realizing the relative movement of the upper cutter 23 and the flexible blade 33 or the lower cutter 34 in the cutting board assembly 3, and completing the half-cutting or full-cutting action.

[0049] The better ones are as follows: Figure 8 As shown, the other side of the large cam gear 52 is provided with an arc-shaped skirt 522, and the arc-shaped skirt 522 is provided with a first gap 523, such as a 1mm gap. The cutting mechanism also includes a position sensor, which is disposed on the rear side wall 12, for detecting the first gap 523 to determine the 0 point position of the large cam gear 52.

[0050] More preferably, the arc-shaped skirt 522 is also provided with a second gap 524, such as a 2mm gap, for use in conjunction with the position sensor to determine the pre-half-cut position or pre-full-cut position of the large cam gear 52.

[0051] Also, as attached Figure 1 and 2 As shown, the upper blade holder assembly 2 also includes two return springs 24 located on the left and right sides respectively. One end of the return spring 24 is connected to the bottom of the cutter bracket 22, and the other end is connected to the left and right side walls of the support frame 1, which is used to realize the automatic return of the cutter bracket 22 after cutting.

[0052] To enable automatic switching between full and half-cutting functions of the cutting mechanism, the cutting mechanism further includes a full / half-cutting conversion component 6. (See attached diagram.) Figure 1 and 2 As shown, the full / half-cut conversion assembly 6 includes a transmission gear set, a small cam gear 61, and a conversion mechanism. The transmission gear set meshes with the large cam gear 52 and the small cam gear 61 respectively, specifically including a large gear 62, a small gear 60, and a transition shaft 64 connecting the large gear 62 and the small gear 60. The large gear 62, the small gear 60, and the transition shaft 64 are fixedly connected as a whole. The two ends of the transition shaft 64 are movably connected to the front sidewall 11 and the rear sidewall 12 respectively through bushings. The large gear 62 meshes with the large cam gear 52, and the small gear 60 meshes with the small cam gear 61. The small cam gear 61 is mounted on the front sidewall 11 via a camshaft. (See attached diagram) Figure 9 As shown, a semi-enclosed cam 611 is provided on one side of the small cam gear 61. The semi-enclosed cam 611 has an inner arc surface 612 and an outer arc surface 613. Its inner arc surface 612 has a constant diameter arc surface, and its outer arc surface 613 has a variable diameter arc surface and a constant diameter arc surface connected to it. (See attached diagram) Figure 1 , 2As shown in FIG. 10, the conversion mechanism 63 comprises a conversion plate 631 and a reversing spring 632. One end of the conversion plate 631 is rotationally connected to the front side wall 11, and the other end is connected to the main shaft 31 of the anvil plate assembly 3 through the reversing spring 632. The middle of the conversion plate 631 is provided with a rotating wheel 633 which is in contact with the inner and outer arc surfaces of the semi-enclosed cam 611 of the small cam gear 61. Then, the small cam gear 61 rotates under the driving of the large cam gear 52. When the rotating wheel 633 forms a sliding surface with the inner arc surface 612 of the semi-enclosed cam 611, the conversion plate 631 does not act. When the rotating wheel 633 forms a sliding surface with the outer arc surface 613 of the semi-enclosed cam 611, the conversion plate 631 rotates downward under the driving of the semi-enclosed cam 611, and further drives the reversing spring 632 to rotate the main shaft 31 until the main shaft 31 rotates 90 degrees, completing the conversion of the flexible blade 33 and the lower cutter 34 in the anvil plate assembly 3. After the rotation of the main shaft 31 is completed, the rotating wheel 633 forms a sliding surface with the constant-diameter arc surface of the outer arc surface 613, so that the main shaft 31 remains stationary.

[0053] Specifically, referring again to FIG. 1, Figure 6 As shown in FIG. 1, one end of the main shaft 31 is fixed with a limiting block 35, and one end of the limiting block 35 is connected with the reversing spring 632, for realizing the rotation of the main shaft 31 under the action of the pulling force of the reversing spring 632. The other end of the main shaft 31 is provided with a retaining spring 36, for realizing the automatic return of the main shaft 31 when there is no pulling force.

[0054] The cutter mechanism of the embodiment can be used in any existing printer to realize full cutting or half cutting of the printing medium, meet the needs of customers for various cutting forms, greatly improve the cutting efficiency, and improve the user experience.

[0055] Specifically, the half cutting process is as follows: as shown in FIG. 1, Figure 17 When the printing medium completes the printing action, the printing medium is sent to the cutter cutting position through the conveying mechanism. At this time, the first gap 523 of the 1mm gap in the skirt 522 of the large cam gear 52 is just at the detection position of the position sensor, and this position is defined as the cutter 0 point position.

[0056] Referring to FIG. 1, Figure 11 and 12As shown, when the cutting starts, the driving motor 4 starts to rotate counterclockwise, the motor gear 41 drives the large cam gear 52 to rotate counterclockwise through the reduction gear 51, the cam 521 in the large cam gear 52 also rotates counterclockwise, since the cam surface of the large cam gear 52 is in contact with the roller 221 in the upper cutter holder assembly 2, when the large cam gear 52 rotates counterclockwise, it drives the cutter support 22 to slide downward along the guide rail 211, at this time the upper cutter 23 is fixed on the cutter support 22, so the upper cutter 23 also moves downward. At this time, the anvil assembly 3 is flexible blade 33 as the working surface is perpendicular to the blade surface of the upper cutter 23 at 90°. At the same time, when the large cam gear 52 rotates counterclockwise, the large gear 62 engaged with it rotates clockwise, the large gear 62 drives the pinion 60 to rotate clockwise, the pinion 60 is engaged with the small cam gear 61, so the small cam gear 61 rotates counterclockwise. At this time, the inner arc surface 612 of the small cam gear 61 is in contact with the rotating shaft 633 on the conversion plate 631, and rotates relatively, since the diameter of the inner arc surface 612 does not change, the rotation of the small cam gear 61 will not have a downward force on the conversion plate 631, so the conversion plate 631 in the full and half cutting conversion mechanism 6 will not have a relative displacement, and the full and half cutting conversion mechanism 6 does not work, and the anvil assembly 3 remains in the initial position.

[0057] The driving motor 4 continues to rotate counterclockwise, when the large cam gear 52 drives the blade end surface of the upper cutter 23 to be 0.05mm-0.07mm away from the working surface of the flexible blade 33, the cross section of the print medium is cut to only leave two front and rear sections connected by a thickness of 0.05mm, at this time the half cutting function is completed, as shown in Figs. Figure 11 and 12. After completing the half cutting function, the driving motor 4 starts to rotate clockwise until the large cam gear 52 returns to the 0 position, the cutter mechanism returns to the initial state, and the half cutting process is completed.

[0058] When continuous half cutting is needed, in order to save the time of the whole cutting process, when the first cutting starts from the 0 position, after the print medium is cut, the driving motor 4 is half way back in the clockwise direction, there is a pre-half cutting position, as shown in Figs. Figure 13 and 14 At this time, it is the pre-half cutting position, that is, the second gap notch position of the skirt 522 on the large cam gear 52, at this time it meets the space for the print medium to continue to enter the cutter mechanism, after the print medium is transported to the position, the driving motor 4 can rotate counterclockwise again to start the next half cutting, and then return to the pre-half cutting position again, until the last half cutting task is completed, the large cam gear 52 returns to the 0 position, waiting for the next cutting task.

[0059] The specific full cutting action implementation process is: still referring to Figs. Figure 17As shown, when the printing medium completes the printing action, it is sent to the cutter cutting position by the conveying mechanism. At this time, the first gap 523 in the skirt 522 of the large cam gear 52 is at the position sensor position, which is defined as the cutter 0 point position.

[0060] Referring to the drawings Figure 15 and 16 As shown, when the cutting starts, the driving motor 4 starts to rotate clockwise, the motor gear 41 drives the large cam gear 52 to rotate clockwise through the reduction gear 51. The cam 521 in the large cam gear 52 also rotates clockwise. Since the cam surface of the large cam gear 52 is in contact with the roller 221 in the upper cutter holder assembly 2, when the large cam gear 52 rotates clockwise, it will also drive the cutter support 22 to slide downward along the guide rail 211. At this time, the upper cutter 23 is fixed on the cutter support 22, so the upper cutter 23 also moves downward. At this time, the anvil assembly 3 is flexible blade 33 perpendicular to the blade surface of the upper cutter 23 at 90°. At the same time, when the large cam gear 52 rotates clockwise, the large gear 62 engaged with it rotates counterclockwise. The large gear 62 drives the pinion 60 to rotate counterclockwise as well. The pinion 60 is engaged with the small cam gear 61, so the small cam gear 61 rotates clockwise. At this time, the outer arc surface 613 of the small cam gear 61 is in contact with the rotating shaft 633 on the conversion plate 631, and rotates relatively. Since the diameter of the outer arc surface 613 changes, it has a downward force on the rotating shaft 633. Therefore, the moving end of the conversion plate 631 in the full and half cutting conversion mechanism 6 rotates, and the reversing spring 632 connected thereto moves downward, thereby driving the limiting block 35 in the anvil assembly 3 to rotate. The limiting block 35 drives the main shaft 31 to rotate, so that the main shaft 31 rotates from the upward working surface of the flexible blade 33 to the upward working surface of the lower cutter 34. At this time, when the second gap of the skirt 522 of the large cam gear 52 rotates to the position sensor detection position, the cam 611 of the small cam gear 61 rotates to the maximum position of the outer arc surface, i.e. the outer arc surface 613 of the cam 611 reaches the constant diameter arc surface, the conversion plate 631 rotates to the maximum rotation position, and the reversing spring 632 is also stretched to the maximum. The reversing of the anvil assembly 3 is completed. At this time, the blade surface of the lower cutter 34 is tangent to the blade surface of the upper cutter 23, and the distance between them is 6mm at the closest. This position is defined as the full and half cutting switch completion position, which is also the pre-full cutting position.

[0061] After that, the driving motor 4 continues to rotate clockwise. When the blade end surface of the upper cutter 23 brought by the large cam gear 52 is tangent to and coincides with the blade surface of the lower cutter 34 without gap, the cross section of the printing medium is cut into two segments, and the full cutting function is realized, as shown in Figure 15 and 16 After the full cutting function is completed, the driving motor 4 starts to rotate counterclockwise until the large cam gear 52 returns to the 0 point position, and the cutter mechanism returns to the initial state. The full cutting process is completed.

[0062] Similarly, in order to save the time of the whole cutting process when continuous full cutting is required, when the first cutting starts from the 0 point position, after the printing medium is cut, the driving motor 4 returns to the pre-full cutting position defined above during the counterclockwise return stroke, at which time the printing medium can continue to enter the cutting mechanism space, after the printing medium is transported to the position, the driving motor 4 can rotate clockwise again to start the next full cutting, and then return to the pre-full cutting position again until the last full cutting task is completed, only then the large cam gear 52 returns to the 0 point position to wait for the next cutting task.

[0063] The above process is a separate implementation process description of half cutting and full cutting, and in actual use, half cutting and full cutting will be applied in an interleaved manner, for example, after one half cutting, the next full cutting and multiple half cuttings are performed, and the cutting mechanism of the present application can complete the cutting, meeting the needs of customers in various cutting forms and greatly improving the user experience.

[0064] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, and those skilled in the art can make some simple modifications, equivalent changes or modifications by using the above disclosed technical content, which all fall within the protection scope of the present application.

Claims

1. A cutter mechanism for implementing half cuts and full cuts, characterized by, The utility model relates to a cutting machine, including support frame and set up on the support frame upper knife rest subassembly, anvil plate subassembly, drive motor and gear drive subassembly, The support frame includes a front side wall, a rear side wall, a left side wall and a right side wall. The upper knife rest subassembly includes a slide rail assembly, a cutter support and an upper cutter. The slide rail assembly includes two guide rails and a sliding block arranged in the guide rails. The two guide rails are symmetrically arranged on both sides of the inner wall of the rear side wall. The cutter support is a square frame. The upper cutter with a downward cutting edge is arranged on the upper part of the square frame. A roller is arranged on the lower part of the square frame. The roller shaft of the roller is perpendicular to the cutting edge of the upper cutter. The two sides of the square frame are fixedly connected with the sliding blocks in the two guide rails, so that the square frame moves up and down along the guide rails. The anvil plate subassembly includes a main shaft. The two ends of the main shaft are rotatably arranged on the left side wall and the right side wall. The middle part of the main shaft is provided with two adjacent planes at an angle of 90 degrees. A flexible blade is fixed on one plane for half-cutting function opposite to the upper cutter. A lower cutter is fixed on the other plane for full-cutting function tangent to the upper cutter. The drive motor is arranged outside the rear side wall. The motor shaft end extends into the support frame. The gear drive subassembly includes a reduction gear and a large cam gear. The reduction gear is meshed with the shaft end gear of the drive motor and the large cam gear. One side of the large cam gear is provided with a cam. The outer side surface of the cam is in contact with the roller on the lower part of the cutter support. When the large cam gear rotates under the driving of the drive motor, the cutter support slides up and down through the action of the roller, and then the upper cutter moves up and down, so that the relative movement between the upper cutter and the flexible blade or the lower cutter in the anvil plate subassembly is realized, and the half-cutting or full-cutting action is completed.

2. The cutter mechanism for enabling half-cutting and full-cutting according to claim 1, characterized in that, The other side of the large cam gear is provided with an arc-shaped skirt. The arc-shaped skirt is provided with a first gap. The cutter mechanism further includes a position sensor for detecting the first gap to obtain the 0-point position of the large cam gear.

3. The cutter mechanism for enabling half-cutting and full-cutting according to claim 2, characterized in that, The arc-shaped skirt is further provided with a second gap for cooperating with the position sensor to obtain the pre-half-cutting position or the pre-full-cutting position of the large cam gear.

4. The cutter mechanism for enabling half-cutting and full-cutting according to claim 3, characterized in that, The widths of the first gap and the second gap are different.

5. The cutter mechanism for enabling half-cutting and full-cutting according to claim 1, wherein, The upper knife rest subassembly further includes a return spring. One end of the return spring is connected with the bottom of the cutter support, and the other end is connected with the support frame, so as to realize the automatic return of the cutter support after cutting.

6. The cutter mechanism for enabling half-cutting and full-cutting according to claim 1, wherein, The lower cutter adopts a V-shaped structure.

7. The cutter mechanism for enabling half-cutting and full-cutting according to any one of claims 1 to 6, characterized in that, The full and half cut conversion assembly comprises a transmission gear set, a small cam gear and a conversion mechanism, the transmission gear set is engaged with the large cam gear and the small cam gear respectively, one side of the small cam gear is provided with a semi-closed cam, the semi-closed cam has an inner arc surface and an outer arc surface, the inner arc surface has a constant diameter arc surface, and the outer arc surface has a variable diameter arc surface; the conversion mechanism comprises a conversion plate and a reversing spring, one end of the conversion plate is rotationally connected to the front side wall, the other end is connected to the main shaft of the anvil plate assembly through the reversing spring, a rotating wheel is arranged in the middle of the conversion plate, the rotating wheel is in close contact with the inner and outer arc surfaces of the semi-closed cam of the small cam gear, then the small cam gear rotates under the driving of the large cam gear, when the rotating wheel forms a sliding surface with the inner arc surface of the semi-closed cam, the conversion plate does not act, when the rotating wheel forms a sliding surface with the outer arc surface of the semi-closed cam, the conversion plate rotates downward under the driving of the semi-closed cam, and then drives the reversing spring to pull the main shaft to rotate until the main shaft rotates by 90 degrees, and the conversion of the flexible blade strip and the lower cutting knife in the anvil plate assembly is completed.

8. The cutter mechanism for enabling half-cutting and full-cutting according to claim 7, characterized in that, The outer arc surface of the semi-closed cam further comprises a constant diameter arc surface connected with the variable diameter arc surface, for keeping the main shaft stationary after rotating by 90 degrees.

9. The cutter mechanism for enabling half-cutting and full-cutting according to claim 8, wherein, One end of the main shaft is fixed with a limiting block, one end of the limiting block is connected with the reversing spring, for realizing the rotation of the main shaft under the action of the pulling force of the reversing spring, the other end of the main shaft is provided with a retaining spring, for realizing the automatic return of the main shaft when there is no pulling force.

10. A printer characterized by comprising: The cutting knife mechanism for realizing half cut and full cut comprises the cutting knife mechanism for realizing half cut and full cut according to any one of claims 1 to 9.

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