Reciprocating cutting equipment for thermo-sensitive paper production

Abstract

The reciprocating cutting equipment for thermo-sensitive paper production comprises a processing table top and supporting legs fixedly installed at the four corners of the bottom of the processing table top, side frames are arranged on the two sides of the processing table top, and a top frame is jointly and fixedly installed at the tops of the two side frames; the slitting and cutting machine further comprises a slitting and cutting double-end driving mechanism, an interval dynamic adjustable slitting mechanism and a cutting interval adjustable cutting mechanism. The slitting and cutting-off double-end driving mechanism is arranged at the bottom of the top frame and used for providing pressing power for the interval dynamic adjustable slitting mechanism and the cutting-off interval adjustable cutting mechanism to achieve slitting and cutting-off work. According to the thermal-sensitive paper cutting device, the distance between the cutting knives can be flexibly adjusted without frequently replacing the knives, the cutting requirements of thermal-sensitive paper with different length specifications can be conveniently met, and the problems that according to existing thermal-sensitive paper cutting equipment, the cutting distance is fixed, the cutting position is complex to adjust, and the production efficiency is low due to the fact that the knives need to be frequently replaced or debugged are solved.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, and more particularly to a reciprocating cutting device for thermal paper production. Background Art

[0002] Thermal paper, with its characteristic of developing color when heated, is widely used in cash receipts, express delivery slips, medical record paper and other fields. In the production process of thermal paper, slitting and cutting are extremely critical processes, which directly affect the quality of the finished product and its subsequent use.

[0003] Currently, the reciprocating cutting equipment used in the production of thermal paper mostly relies on slitting blades with fixed spacing in the slitting process. However, since different application scenarios have significantly different requirements for the width of thermal paper, this fixed spacing slitting method is difficult to flexibly adapt to diverse production needs and often requires frequent replacement of slitting blades. This not only consumes a lot of time but also increases production costs.

[0004] In terms of cutting, the cutting position adjustment of existing equipment is not convenient and precise enough; for the production of thermal paper of different lengths and specifications, it is usually necessary to make complex parameter adjustments or even structural modifications to the equipment, which greatly reduces the flexibility and efficiency of production. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a reciprocating cutting device for thermal paper production. This device can flexibly adjust the slitting blade spacing without frequent blade replacements and can easily adapt to the cutting needs of thermal paper of different lengths and specifications. This solves the problems of fixed slitting spacing, complex cutting position adjustment, and low production efficiency caused by frequent blade replacements or adjustments required by existing thermal paper cutting equipment.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a reciprocating cutting device for producing thermal paper, including a processing table and support legs fixedly installed at the four corners of the bottom of the processing table. Side frames are provided on both sides of the processing table, and a top frame is fixedly installed on the top of the two sets of side frames. The device also includes a double-end driving mechanism for slitting and cutting, a dynamically adjustable slitting mechanism, and a cutting interval adjustable cutting mechanism. The slitting and cutting dual-end drive mechanism is located at the bottom of the top frame and is used to provide downward pressure to the dynamically adjustable slitting mechanism and the adjustable cutting spacing mechanism to realize slitting and cutting work. The dynamically adjustable slitting mechanism is located on one side of the bottom of the top frame and is used to slit the thermal paper with adjustable spacing. The adjustable cutting spacing mechanism is located on the other side of the bottom of the top frame and is used to cut the thermal paper.

[0007] Furthermore, the slitting and cutting double-end drive mechanism includes a mounting frame, a limiting frame, a first cylinder, a second cylinder, a guide block one, and a guide block two. The mounting frame is detachably mounted on the bottom of the top frame by bolts. The limiting frame is fixedly mounted to the bottom of the mounting frame. The guide block one is slidably mounted on one side of the bottom of the limiting frame, and the guide block two is slidably mounted on the other side of the bottom of the limiting frame. The first cylinder is fixedly mounted on the side of the limiting frame near the guide block one, and the output end of the first cylinder passes through the limiting frame and is fixedly connected to a slide rod one. The second cylinder is fixedly connected on the side of the limiting frame near the guide block two, and the output end passes through the limiting frame and is fixedly connected to a slide rod two. Both the guide block one and the guide block two have lifting grooves inside.

[0008] Furthermore, the dynamically adjustable slitting mechanism includes an automatic drive assembly, a slitting pressure frame, a stabilizing frame, slitting arms, a fixing block, a slitting blade, and a shearing cross frame. The automatic drive assembly is located on one side of the stabilizing frame and is used to drive the slitting arm on one side to move laterally. The slitting pressure frame is fixedly installed at the bottom of the guide pressure block. The stabilizing frame is fixedly installed at the bottom of the slitting pressure frame. There are seven sets of slitting arms arranged horizontally. The top of the fixing block is fixedly connected to the bottom of the slitting pressure frame, and the bottom of the fixing block is fixedly connected to the middle slitting arm. The shearing cross frame is composed of multiple sets of linkage units arranged in a shearing cross pattern. The linkage units are connected sequentially through hinge shafts to form the shearing cross frame. The slitting arms are movably connected to the linkage units of the shearing cross frame through rotating shafts. Except for the middle slitting arm constrained by the fixing block, the other slitting arms can move to both sides along the extension or retraction direction of the shearing cross frame. The slitting blade is fixedly connected to the rear side of the slitting arm.

[0009] Furthermore, the automatic drive assembly includes an electric push rod and a mounting plate. The mounting plate is fixedly mounted on one side of the stabilizer, and the electric push rod is fixedly mounted on the side of the mounting plate away from the cutting arm. The output end of the electric push rod is fixedly mounted to the cutting arm near the side of the mounting plate.

[0010] Furthermore, the adjustable cutting mechanism includes an adjusting rail, a mounting base, a servo motor, a lead screw, a support shaft, a cutting frame, and a cutting blade. The adjusting rail is fixedly installed at the bottom of the guide block two. The mounting base is fixedly connected to the bottom of the guide block two near the guide block two. The servo motor is fixedly connected to the mounting base near the guide block two. The output end of the servo motor passes through the mounting base and is fixedly connected to the lead screw. The support shaft is fixedly connected to the bottom of the adjusting rail away from the mounting base. The end of the lead screw away from the servo motor is rotatably engaged with the support shaft. The cutting blade is fixedly connected to the bottom of the cutting frame. The cutting frame is slidably installed at the bottom of the adjusting rail and threadedly connected to the lead screw.

[0011] Furthermore, sliding guide frames are slidably installed on both sides of the top of the processing table, located on both sides of the sliding pressure frame. First guide sliders that slide in cooperation with the sliding guide frames are fixedly connected to both sides of the sliding pressure frame. Cutting guide frames are slidably installed on both sides of the top of the processing table, located on both sides of the cutting frame. Second guide sliders that slide in cooperation with the cutting guide frames are fixedly connected to both sides of the cutting frame. A cutting base that cooperates with the cutting blade is fixedly connected to the bottom of the cutting guide frames on their closest sides. Locking bolts are threaded to the bottom of both the sliding guide frames and the cutting guide frames. The bottoms of the locking bolts penetrate the sliding guide frames and the cutting guide frames respectively and are fixedly engaged with both sides of the processing table.

[0012] Furthermore, both sides of the guide block one and guide block two are fixedly installed with limiting slide bars. The inner wall of the mounting frame is provided with a limiting slide groove that slides with the limiting slide bars. A rear support frame is fixedly connected to the bottom of the limiting frame on the side between guide block one and guide block two. A front support frame is fixedly connected to the bottom of the limiting frame on the side of the rear support frame. A bottom bracket is fixedly connected to the bottom of the rear support frame. The bottom bracket, the rear support frame and the front support frame are fixedly fitted together to support slide rod one and slide rod two located at the rear support frame.

[0013] Furthermore, both the first guide block and the second guide block have mounting grooves at their tops. A tension spring is fixedly connected to the bottom of the inner wall of the mounting groove. The top of the tension spring is fixedly connected to the top of the limiting frame. The tension spring is used to lift the first guide block and the second guide block.

[0014] Furthermore, the internal structure of the stabilizing frame is fixedly connected to a limiting slide located on one side of the cutting arm, and several cutting arms are provided with guide grooves that slide in cooperation with the limiting slide on the side near the limiting slide.

[0015] The beneficial effects of the present invention are as follows: By setting up the unwinding roller and tension adjustment mechanism of the unwinding and winding equipment, the shearing cross frame and electric push rod of the interval dynamically adjustable slitting mechanism, the servo motor and lead screw of the cutting spacing adjustable cutting mechanism, and the limiting slide, tension spring and support frame of the slitting and cutting double-end drive mechanism, the present invention can not only flexibly adjust the slitting blade spacing, but also adjust the cutting position, and adapt to the production needs of thermal paper with different widths and lengths without frequent blade changes or complex debugging. Attached Figure Description

[0016] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1A schematic diagram of the rear three-dimensional structure; Figure 3 for Figure 2 Enlarged view of A in the middle; Figure 4 This is a half-section exploded three-dimensional structural diagram of the mounting bracket of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the cutting frame of the present invention; Figure 6 for Figure 5 Enlarged view of B in the middle; Figure 7 This is a bottom-view perspective view of the guide block one and guide block two of the present invention. Figure 8 This is a top-view three-dimensional structural diagram of the guide block one and guide block two of the present invention; Figure 9 This is a rear-view three-dimensional structural diagram of the slitting arm of the present invention; Figure 10 This is a schematic diagram of the shear-type cross rack structure of the present invention.

[0017] In the diagram: 1. Processing table; 101. Support leg; 2. Side frame; 3. Top frame; 4. Mounting frame; 41. Limiting frame; 411. Rear support frame; 412. Front support frame; 413. Base support frame; 5. Sliding pressure frame; 51. First cylinder; 511. Slide rod one; 52. Stabilizing frame; 53. Sliding arm; 54. Electric push rod; 541. Mounting plate; 55. Limiting slide; 56. Fixing block; 57. Sliding blade; 58. Shearing cross frame; 59. Guide pressure block one; 6. Cutting frame; 61. Second cylinder; 611. Second slide bar; 62. Adjusting rail; 63. Second guide block; 64. Mounting base; 65. Servo motor; 66. Lead screw; 67. Support shaft frame; 68. Cutting cutter; 7. Mounting groove; 71. Tension spring; 72. Limiting slide bar; 73. Limiting slide groove; 8. Locking bolt; 501. Cutting guide frame; 502. First guide slider; 601. Cutting guide frame; 602. Second guide slider; 603. Cutting base. DETAILED DESCRIPTION

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] A reciprocating cutting device for producing thermal paper includes a processing table 1 and support legs 101 fixedly installed at the four corners of the bottom of the processing table 1. Side frames 2 are provided on both sides of the processing table 1, and a top frame 3 is fixedly installed on the top of the two sets of side frames 2. It also includes a double-end drive mechanism for slitting and cutting, a dynamically adjustable slitting mechanism, and a cutting mechanism with adjustable cutting interval.

[0021] Please see Figures 2 to 10 , Figure 2 for Figure 1 A schematic diagram of the rear three-dimensional structure; Figure 3 for Figure 2 Enlarged view of A in the middle; Figure 4 This is a half-section exploded three-dimensional structural diagram of the mounting bracket of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the cutting frame of the present invention; Figure 6 for Figure 5 Enlarged view of B in the middle; Figure 7 This is a bottom-view perspective view of the guide block one and guide block two of the present invention. Figure 8 This is a top-view three-dimensional structural diagram of the guide block one and guide block two of the present invention; Figure 9 This is a rear-view three-dimensional structural diagram of the slitting arm of the present invention; Figure 10 This is a schematic diagram of the shear-type cross rack structure of the present invention.

[0022] The slitting and cutting dual-end drive mechanism is located at the bottom of the top frame 3 and provides downward pressure to the dynamically adjustable slitting mechanism and the adjustable cutting interval cutting mechanism to achieve slitting and cutting operations. The slitting and cutting dual-end drive mechanism includes a mounting frame 4, a limiting frame 41, a first cylinder 51, a second cylinder 61, a guide block 1 59, and a guide block 2 63. The mounting frame 4 is detachably mounted on the bottom of the top frame 3 by bolts. The limiting frame 41 is fixedly mounted to the bottom of the mounting frame 4. The guide block 1 59 is slidably mounted on the limiting frame. On one side of the bottom of 41, guide block 2 63 is slidably installed on the other side of the bottom of limit frame 41. First cylinder 51 is fixedly installed on the side of limit frame 41 near guide block 1 59, and the output end of first cylinder 51 passes through limit frame 41 and is fixedly connected to slide rod 1 511. Second cylinder 61 is fixedly connected on the side of limit frame 41 near guide block 2 63, and the output end passes through limit frame 41 and is fixedly connected to slide rod 2 611. Both guide block 1 59 and guide block 2 63 have lifting grooves inside. The mounting frame 4 can be assembled and disassembled with the top frame 3 to change the installation direction of the bottom limiting frame 41, which is more convenient when there is a need for assembly line layout modification. At the same time, the limiting frame 41 can limit the guide block 59 and the guide block 63 by fixing it with the mounting frame 4. When it is necessary to drive the guide block 59 and the guide block 63 up and down, the first cylinder 51 can be driven to retract the slide rod 511 away from the second cylinder 61, and then the guide block 59 will move downward through the lifting groove of the guide block 59. At the same time, the second cylinder 61 can be activated to retract the slide rod 611 away from the first cylinder 51, and the guide block 63 will be pressed downward through the lifting groove of the guide block 63.

[0023] A dynamically adjustable slitting mechanism is located on one side of the bottom of the top frame 3 and is used to slit thermal paper with adjustable spacing. The dynamically adjustable slitting mechanism includes an automatic drive assembly, a slitting pressure frame 5, a stabilizing frame 52, slitting arms 53, a fixing block 56, a slitting blade 57, and a shearing cross frame 58. The automatic drive assembly is located on one side of the stabilizing frame 52 and is used to drive one side of the slitting arm 53 to move laterally. The slitting pressure frame 5 is fixedly installed at the bottom of the guide block 59, and the stabilizing frame 52 is fixedly installed at the bottom of the slitting pressure frame 5. Seven sets of slitting arms 53 are arranged horizontally. The top of the fixed block 56 is fixedly connected to the bottom of the slitting press 5, and the bottom of the fixed block 56 is fixedly connected to the middle slitting arm 53. The shearing cross frame 58 is composed of multiple sets of linkage units arranged in a shearing cross pattern. The linkage units are connected in sequence through hinge shafts to form the shearing cross frame 58. The slitting arm 53 is movably connected to the linkage unit of the shearing cross frame 58 through a rotating shaft. Except for the middle slitting arm 53 which is constrained by the fixed block 56, the other slitting arms 53 can move to both sides along the extension or retraction direction of the shearing cross frame 58. The slitting blade 57 is fixedly connected to the rear side of the slitting arm 53. The automatic drive component can drive the slitting arm 53 on one side laterally, causing the slitting arm 53 on one side to extend and retract the shearing cross frame 58. If the shearing cross frame 58 extends, the middle slitting arm 53 constrained by the fixed block 56 remains stationary, and the linkage units of the shearing cross frames 58 on both sides rotate and unfold around the hinge axis, driving the slitting arms 53 on both sides to extend outward and expand the slitting range. If the shearing cross frame 58 retracts, the slitting arms 53 on both sides move closer to the middle, narrowing the slitting interval, thereby achieving automatic adjustment of the slitting width. The stabilizing frame 52 can limit the multiple slitting arms 53. The slitting pressure frame 5 can move downward with the guide pressure block 59. After the slitting pressure frame 5 moves downward, it can drive several slitting arms 53 and the slitting blade 57 downward to contact the thermal paper for slitting operation.

[0024] The automatic drive assembly includes an electric push rod 54 and a mounting plate 541. The mounting plate 541 is fixedly mounted on one side of the stabilizer 52, and the electric push rod 54 is fixedly mounted on the side of the mounting plate 541 away from the slitting arm 53. The output end of the electric push rod 54 is fixedly mounted to the slitting arm 53 on the side close to the mounting plate 541. The mounting plate 541 can fix the electric push rod 54 to one side of the stabilizer 52, and after the electric push rod 54 is driven, it can drive the slitting arm 53 on one side to move laterally.

[0025] An adjustable cutting mechanism with a cutting gap is located on the other side of the bottom of the top frame 3 and is used to cut thermal paper. The adjustable cutting mechanism includes an adjusting rail 62, a mounting base 64, a servo motor 65, a lead screw 66, a support shaft frame 67, a cutting frame 6, and a cutting blade 68. The adjusting rail 62 is fixedly installed at the bottom of the guide block 63. The mounting base 64 is fixedly connected to the bottom of the guide block 63 on the side close to the guide block 63. The servo motor 65 is fixedly connected to the mounting base 64 on the side close to the guide block 63. The output end of the servo motor 65 passes through the mounting base 64 and is fixedly connected to the lead screw 66. The support shaft frame 67 is fixedly connected to the bottom of the adjusting rail 62 on the side away from the mounting base 64. The end of the lead screw 66 away from the servo motor 65 is rotatably engaged with the support shaft frame 67. The cutting blade 68 is fixedly connected to the bottom of the cutting frame 6. The cutting frame 6 is slidably installed at the bottom of the adjusting rail 62 and is threadedly connected to the lead screw 66. The adjusting rail 62, fixed to the guide pressure block 63, can be moved downwards by the guide pressure block 63. Simultaneously, according to the cutting requirements, the servo motor 65 can be activated to drive the lead screw 66 to rotate. The lead screw 66 then drives the cutting frame 6, which is threadedly connected to it, to move laterally on the adjusting rail 62 and move the cutting frame 6 to the required cutting position. Subsequently, the second cylinder 61 can be activated in conjunction with the slide rod 611 to drive the guide pressure block 63 to move downwards. The guide pressure block 63 drives the adjusting rail 62, which is fixed to it, to move downwards. The adjusting rail 62 then drives the cutting frame 6 and the cutting blade 68 to move downwards. The thermal paper can then be cut by the cutting blade 68.

[0026] Sliding guide frames 501 are slidably installed on both sides of the top of the processing table 1, located on both sides of the slitting pressure frame 5. First guide sliders 502 that slide and cooperate with the sliding guide frames 501 are fixedly connected to both sides of the sliding pressure frame 5. Cutting guide frames 601 are slidably installed on both sides of the top of the processing table 1, located on both sides of the cutting frame 6. Second guide sliders 602 that slide and cooperate with the cutting guide frames 601 are fixedly connected to both sides of the cutting frame 601. Cutting bases 603 that cooperate with the cutting blades 68 are fixedly connected to the bottom of the cutting guide frames 601 on the side closest to each other. Locking bolts 8 are threadedly connected to the bottom of both the sliding guide frame 501 and the cutting guide frame 601. The bottom of the locking bolts 8 passes through the sliding guide frame 501 and the cutting guide frame 601 respectively and is fixedly cooperated with both sides of the processing table 1. The slitting guide frame 501 and the cutting guide frame 601 can be slidably arranged according to the positions of the corresponding slitting pressure frame 5 and the cutting frame 6. Then, the locking bolt 8 is turned at the determined position to fix the slitting guide frame 501 and the cutting guide frame 601 on both sides of the processing table 1. After fixing the slitting guide frame 501 and the cutting guide frame 601, the first guide slider 502 and the second guide slider 602 can be longitudinally slidably limited to the slitting guide frame 501 and the cutting guide frame 601, so that the downward movement of the slitting pressure frame 5 and the cutting frame 6 is more stable. The cutting base 603 can cooperate with the cutting guide frame 601 to slide under the cutting cutter 68, and cooperate with the cutting cutter 68 to facilitate the cutting of thermal paper.

[0027] Both sides of the guide block 1 59 and the guide block 2 63 are fixedly installed with limiting slide strips 72. The inner wall of the mounting frame 4 is provided with a limiting slide groove 73 that slides with the limiting slide strips 72. The bottom of the limiting frame 41 is fixedly connected to a rear support frame 411 on the side between the guide block 1 59 and the guide block 2 63. The bottom of the limiting frame 41 is fixedly connected to a front support frame 412 on the side of the rear support frame 411. The bottom of the rear support frame 411 is fixedly connected to a bottom bracket 413. The bottom bracket 413, the rear support frame 411 and the front support frame 412 are fixedly connected to each other to support the slide rod 1 511 located at the rear support frame 411. The combination of the rear support frame 411, the front support frame 412, and the bottom bracket 413 enables the limiting frame 41 to provide inner support for the guide block 59 and the guide block 63, preventing them from tilting towards each other. The bottom bracket 413 provides support for the slide rod 511 and the slide rod 611 at its top. Meanwhile, the guide block 59 and the guide block 63, together with the limiting slide strip 72, can slide in a limiting groove 73 inside the mounting frame 4, allowing the guide block 59 and the guide block 63 to slide stably in the longitudinal direction.

[0028] The top of both guide block 59 and guide block 63 is provided with mounting groove 7. A tension spring 71 is fixedly connected to the bottom of the inner wall of the mounting groove 7. The top of the tension spring 71 is fixedly connected to the top of the limiting frame 41. The tension spring 71 is used to lift guide block 59 and guide block 63. The mounting slot 7 facilitates the fixed installation of the tension spring 71 and provides the tension spring 71 with elastic contraction space. The tension of the tension spring 71 can also facilitate the lifting of the guide block 59 and the guide block 63, thereby eliminating the sliding gap between the guide block 59 and the slide rod 511, as well as the sliding gap between the guide block 63 and the slide rod 611.

[0029] The stabilizing frame 52 is internally fixedly connected to a limiting slide 55 located on one side of the slitting arm 53. Several slitting arms 53 are provided with guide grooves on the side near the limiting slide 55, which slide in cooperation with the limiting slide 55. The limiting slide 55 can laterally limit the sliding of several slitting arms 53. At the same time, the guide grooves of the slitting arms 53, together with the limiting slide 55, can prevent multiple slitting arms 53 from falling downwards, and facilitate the height adjustment of multiple slitting arms 53 following the slitting press 5 and the stabilizing frame 52.

[0030] Working principle: Before the thermal paper enters the slitting and cutting process, the raw material is conveyed and tension is controlled by the unwinding and winding equipment. The unwinding and winding equipment includes an unwinding roller and a tension adjustment mechanism. A large roll of thermal paper raw material is mounted on the unwinding roller. The unwinding motor drives the unwinding roller to rotate at a constant speed, conveying the thermal paper raw material towards the processing table 1. The tension adjustment mechanism (such as a tension sensor and guide roller group) monitors the tension of the thermal paper in real time during the conveying process. When the tension is too high, the unwinding motor reduces the speed. When the tension is too low, the unwinding motor increases the speed to ensure that the thermal paper is laid flat on the processing table 1 with stable tension, providing a flat and wrinkle-free processing substrate for subsequent slitting and cutting. Mounting bracket 4 is detachably connected to top bracket 3 via bolts, allowing for flexible adjustment of the installation direction to adapt to assembly line layout modifications. Limiting frame 41 limits the movement of guide block 1 59 and guide block 2 63. When guide block 1 59 needs to be driven down, first cylinder 51 drives slide rod 1 511 to retract away from second cylinder 61. Slide rod 1 511 pushes guide block 1 59 downward through the lifting groove inside guide block 1 59. Similarly, activating second cylinder 61 causes slide rod 2 611 to retract away from first cylinder 51, and the lifting groove of guide block 2 63... The guide block 2 63 moves downward, and the limiting slide strips 72 on both sides of the guide block 1 59 and the guide block 2 63 slide in conjunction with the limiting slide groove 73 on the inner wall of the mounting frame 4, ensuring the stability of longitudinal sliding. At the same time, the tension spring 71 in the mounting groove 7 can lift the guide block 1 59 and the guide block 2 63, eliminating the sliding gap between the slide rod and the guide block. The combination of the rear support frame 411, the front support frame 412 and the bottom bracket 413 supports the inner side of the guide block 1 59 and the guide block 2 63 to prevent them from tilting, and can also provide support force for the slide rod 1 511 and the slide rod 2 611. The electric push rod 54 in the automatic drive assembly is fixed to the mounting plate 541. The electric push rod 54 drives the slitting arm 53 on the side closest to the mounting plate 541 to move laterally. The slitting arm 53 is movably connected to the linkage unit of the shear cross frame 58 through a rotating shaft. The middle slitting arm 53 is constrained and kept stationary by the fixing block 56. When the electric push rod 54 pushes the slitting arm 53 on one side to move, it will cause the shear cross frame 58 to extend or retract. If the shear cross frame 58 extends, the linkage units on both sides rotate and unfold around the hinge axis, causing the slitting arms 53 on both sides to extend outward and expand the slitting range. If the shear cross frame 58 retracts, the slitting arms 53 on both sides move closer to the middle and narrow the slitting interval, thereby realizing the automatic adjustment of the slitting width. In section, the slitting pressure frame 5 moves downward following the guide pressure block 59, driving the slitting arm 53 and slitting knife 57 downward to contact the thermal paper that has been stably conveyed by the winding and unwinding equipment, and slitting the thermal paper. The limiting slide 55 inside the stabilizing frame 52 slides and engages with the guide slide groove of the slitting arm 53 to limit the slitting arm 53 laterally, preventing the slitting arm 53 from falling, and facilitating the height adjustment of the slitting arm 53 with the slitting pressure frame 5 and the stabilizing frame 52. The slitting guide frame 501 can be slidably arranged according to the position of the slitting pressure frame 5 and is fixed to both sides of the processing table 1 by locking bolts 8. The first guide slider 502 slides and engages with the slitting guide frame 501 to limit the downward movement of the slitting pressure frame 5 longitudinally, making it more stable. The adjusting rail 62 moves downward with the guide pressure block 63. According to the cutting requirements, the servo motor 65 is activated to drive the lead screw 66 to rotate. The lead screw 66 drives the cutting frame 6, which is threadedly connected to it, to move laterally on the adjusting rail 62, moving the cutting frame 6 to the desired cutting position. Then, the second cylinder 61 is activated, driving the guide pressure block 63 downward, which in turn causes the adjusting rail 62 to drive the cutting frame 6 and the cutting blade 68 downward. The cutting blade 68 cuts the slit thermal paper strips. During the cutting process, external... The unwinding equipment maintains a uniform conveying speed to ensure that the thermal paper strip passes through the cutting station at a stable speed, avoiding deviations in cutting length due to fluctuations in conveying speed. The cutting guide frame 601 can be slidably arranged according to the position of the cutting frame 6 and is fixed by the locking bolt 8. The second guide slider 602 is slidably engaged with the cutting guide frame 601 to longitudinally limit the downward movement of the cutting frame 6, ensuring the stability of cutting. The cutting base 603 cooperates with the cutting blade 68 to provide support for cutting and prevent burrs from appearing when cutting thermal paper.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A reciprocating cutting device for producing thermal paper, comprising a processing table (1) and support legs (101) fixedly installed at the four corners of the bottom of the processing table (1), wherein side frames (2) are provided on both sides of the processing table (1), and a top frame (3) is fixedly installed on the top of the two sets of side frames (2), characterized in that: It also includes a dual-end drive mechanism for slitting and cutting, a dynamically adjustable slitting mechanism for intervals, and a cutting mechanism for adjustable cutting spacing; The slitting and cutting double-end drive mechanism is located at the bottom of the top frame (3) and is used to provide downward pressure to the interval dynamically adjustable slitting mechanism and the cutting spacing adjustable cutting mechanism to realize slitting and cutting work. The dynamically adjustable slitting mechanism is located on one side of the bottom of the top frame (3) and is used to slit the thermal paper with adjustable spacing. The adjustable cutting mechanism is located on the other side of the bottom of the top frame (3) and is used to cut the thermal paper.

2. The reciprocating cutting equipment for producing thermal paper according to claim 1, characterized in that: The slitting and cutting double-end drive mechanism includes a mounting frame (4), a limiting frame (41), a first cylinder (51), a second cylinder (61), a guide block one (59), and a guide block two (63). The mounting frame (4) is detachably mounted on the bottom of the top frame (3) by bolts. The limiting frame (41) is fixedly mounted to the bottom of the mounting frame (4). The guide block one (59) is slidably mounted on one side of the bottom of the limiting frame (41), and the guide block two (63) is slidably mounted on the bottom of the limiting frame (41). On the other side, the first cylinder (51) is fixedly installed on the side of the limiting frame (41) near the first guide block (59), and the output end of the first cylinder (51) passes through the limiting frame (41) and is fixedly connected to the first slide rod (511). The second cylinder (61) is fixedly connected on the side of the limiting frame (41) near the second guide block (63), and the output end passes through the limiting frame (41) and is fixedly connected to the second slide rod (611). The first guide block (59) and the second guide block (63) are both provided with lifting grooves.

3. The reciprocating cutting equipment for producing thermal paper according to claim 2, characterized in that: The dynamically adjustable slitting mechanism includes an automatic drive assembly, a slitting pressure frame (5), a stabilizing frame (52), slitting arms (53), a fixing block (56), a slitting blade (57), and a shearing cross frame (58). The automatic drive assembly is located on one side of the stabilizing frame (52) and is used to drive one side of the slitting arm (53) to move laterally. The slitting pressure frame (5) is fixedly installed at the bottom of the guide pressure block (59), and the stabilizing frame (52) is fixedly installed at the bottom of the slitting pressure frame (5). There are seven sets of slitting arms (53) arranged horizontally. The top of the fixing block (56) is perpendicular to the slitting pressure frame (5). The bottom is fixedly connected, and the bottom of the fixed block (56) is fixedly connected to the middle cutting arm (53). The shearing cross frame (58) is composed of multiple sets of linkage units arranged in a shearing cross pattern. The linkage units are connected in sequence through hinge shafts to form a shearing cross frame. The cutting arm (53) and the linkage unit of the shearing cross frame (58) are movably connected through a rotating shaft. Except for the middle cutting arm (53) which is constrained by the fixed block (56), the other cutting arms (53) can move to both sides along the extension or retraction direction of the shearing cross frame (58). The cutting blade (57) is fixedly connected to the rear side of the cutting arm (53).

4. The reciprocating cutting equipment for producing thermal paper according to claim 3, characterized in that: The automatic drive assembly includes an electric push rod (54) and a mounting plate (541). The mounting plate (541) is fixedly mounted on one side of the stabilizer (52). The electric push rod (54) is fixedly mounted on the side of the mounting plate (541) away from the cutting arm (53). The output end of the electric push rod (54) is fixedly mounted to the cutting arm (53) on the side close to the mounting plate (541).

5. The reciprocating cutting equipment for producing thermal paper according to claim 3, characterized in that: The adjustable cutting mechanism includes an adjusting rail (62), a mounting base (64), a servo motor (65), a lead screw (66), a support shaft frame (67), a cutting frame (6), and a cutting blade (68). The adjusting rail (62) is fixedly installed at the bottom of the guide block two (63). The mounting base (64) is fixedly connected to the bottom of the guide block two (63) on the side near the guide block two (63). The servo motor (65) is fixedly connected to the mounting base (64) near the guide block two (63). On one side, the output end of the servo motor (65) passes through the mounting base (64) and is fixedly connected to the lead screw (66). The support shaft bracket (67) is fixedly connected to the bottom of the adjustment rail (62) on the side away from the mounting base (64). The end of the lead screw (66) away from the servo motor (65) is rotatably engaged with the support shaft bracket (67). The cutting blade (68) is fixedly connected to the bottom of the cutting frame (6). The cutting frame (6) is slidably installed on the bottom of the adjustment rail (62) and threadedly connected to the lead screw (66).

6. The reciprocating cutting equipment for producing thermal paper according to claim 5, characterized in that: The processing table (1) has two sides of the top top with slidable sliding guide frames (501) located on both sides of the sliding pressure frame (5). The two sides of the sliding pressure frame (5) are fixedly connected with first guide sliders (502) that slide in cooperation with the sliding guide frames (501). The two sides of the top top of the processing table (1) have two sides of the cutting frame (6) with slidable cutting guide frames (601). The two sides of the cutting frame (6) are fixedly connected with second guide sliders (602) that slide in cooperation with the cutting guide frames (601). The bottom of the cutting guide frames (601) on the side closest to each other is fixedly connected with a cutting base (603) that cooperates with the cutting cutter (68). The bottom of the sliding guide frame (501) and the cutting guide frame (601) are both threadedly connected with locking bolts (8). The bottom of the locking bolts (8) passes through the sliding guide frame (501) and the cutting guide frame (601) respectively and is fixedly cooperated with the two sides of the processing table (1).

7. The reciprocating cutting equipment for producing thermal paper according to claim 3, characterized in that: Both sides of the guide block 1 (59) and guide block 2 (63) are fixedly installed with limiting slide strips (72). The inner wall of the mounting frame (4) is provided with a limiting slide groove (73) that slides with the limiting slide strips (72). The bottom of the limiting frame (41) is fixedly connected to a rear support frame (411) on the side between the guide block 1 (59) and guide block 2 (63). The bottom of the limiting frame (41) is fixedly connected to a front support frame (412) on the side of the rear support frame (411). The bottom of the rear support frame (411) is fixedly connected to a bottom bracket (413). The bottom bracket (413), the rear support frame (411), and the front support frame (412) are fixedly connected to support the slide rod 1 (511) and slide rod 2 (611) located at the rear support frame (411).

8. The reciprocating cutting equipment for producing thermal paper according to claim 2, characterized in that: The top of both guide block 1 (59) and guide block 2 (63) is provided with an installation groove (7). A tension spring (71) is fixedly connected to the bottom of the inner wall of the installation groove (7). The top of the tension spring (71) is fixedly connected to the top of the limiting frame (41). The tension spring (71) is used to lift guide block 1 (59) and guide block 2 (63).

9. The reciprocating cutting equipment for producing thermal paper according to claim 3, characterized in that: The internal fixed connection of the stabilizing frame (52) is a limiting slide (55) located on one side of the cutting arm (53). Several cutting arms (53) are provided with guide grooves that slide with the limiting slide (55) on the side near the limiting slide (55).

Images