Perforating machine capable of replacing cutter core

Abstract

The invention discloses a cutter core-replaceable perforating machine, which comprises a mounting base, a cutter core-replaceable unit, a control handle, an elastic reset assembly, a driving transmission mechanism and an iron ring pressing assembly, and solves the problems that the cutter core of the existing equipment is inconvenient to replace, the function is single and the structure is bloated. The replaceable cutter core unit is matched and positioned with the mounting sinking groove of the mounting base through the outer contour of the bottom, so that tool-free quick disassembly and replacement are realized; the driving gear is meshed with the transmission element with the transmission meshing hole, rotation motion of the control handle is converted into vertical punching force, automatic reset of the handle is achieved in combination with the elastic reset assembly, and the height of the whole machine is reduced in cooperation with the limiting assembly. The initial position of a press-fit fixing plate in the iron ring press-fit assembly can be adjusted so as to adapt to binding iron rings of different specifications, and the punching and ring pressing functions are integrated. Through the structural design, second-level replacement of the cutter core is achieved, operation is labor-saving and smooth, the structure is compact, and the multi-scene efficient punching and binding requirements of office files, artware and the like are met.

Description

Technical Field

[0001] This invention relates to the field of office punching equipment technology, specifically to a punching machine with a replaceable core that allows for easy core replacement. Background Technology

[0002] With the increasing demand for office automation and personalization, there is a growing need for efficient and flexible punching and binding of sheet materials such as documents, receipts, leather goods, and handicrafts. While pursuing ease of operation and diverse functions, consumers are also placing higher demands on the ease of maintenance, labor-saving operation, and compact overall structure of the equipment.

[0003] Currently, most punching machines on the market suffer from the following significant problems: the cutting head cannot be replaced or the replacement operation is complex, resulting in high maintenance costs. Mainstream punching machines typically use fixed cutting heads or complex replaceable cutting head designs. When the cutting head wears down or different hole diameters / shapes need to be switched, cumbersome disassembly and assembly with tools are often required, sometimes involving disassembling multiple components or adjusting precision alignment mechanisms. This is not only time-consuming and labor-intensive but also accelerates wear on connecting structures, affecting the machine's accuracy and lifespan. Furthermore, existing equipment has limited functionality; punching and binding are usually performed separately. Even the few machines that integrate binding functions often have binding structures that are difficult to adapt to different sizes of binding rings. Users still need to frequently adjust or replace equipment when facing various binding size requirements, resulting in bulky equipment, cumbersome operation, and difficulty in meeting the demands of efficient operation.

[0004] Therefore, the present invention provides a core-changing punching machine, which can effectively solve the above problems. Summary of the Invention

[0005] To overcome the shortcomings of the existing technology, the present invention provides a punching machine with a changeable core, which has a simple structure, is portable for core replacement, and has a binding structure that can be adapted to binding iron rings of different specifications.

[0006] The technical solution adopted by this invention to solve its technical problem is: A core-changing punching machine, comprising: Mounting base, used to support the sheet material to be drilled; A replaceable cutting core unit is detachably mounted on the mounting base, and the replaceable cutting core unit includes a drilling assembly; A control handle is rotatably connected to the mounting base, and the rotation of the control handle drives the punching assembly of the replaceable core unit to move downward to perform punching on the sheet material supported on the mounting base. A metal ring pressing assembly includes a pressing fixed plate and a pressing movable plate. When the control handle is turned downwards, the pressing movable plate moves toward the pressing fixed plate and presses the binding metal ring located between the pressing fixed plate and the pressing movable plate. The initial position of the pressing fixed plate is adjustable to accommodate binding metal rings of different specifications.

[0007] The beneficial effects of this invention are as follows: Through the above-described structure, the detachable installation design of the replaceable blade unit allows the device to flexibly adapt to the punching needs of various sheet materials (such as paper, leather, and plastic sheets) by replacing different specifications of the replaceable blade unit. This not only reduces equipment purchase costs but also simplifies subsequent maintenance procedures—when the replaceable blade unit is worn or damaged, only the replaceable blade unit needs to be replaced individually, without disassembling the main body of the device, effectively improving the versatility and service life of the equipment. The integrated design of the iron ring pressing assembly combines punching and binding functions into one, avoiding the cost and space occupation of users purchasing two separate devices. Crucially, the adjustable initial position structure of the pressing fixing plate allows the device to adapt to different specifications of binding iron rings through simple operation. Users can quickly switch between various binding sizes without the need for tools or replacement parts, significantly improving the flexibility and efficiency of binding operations. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are only illustrated in the drawings and are not necessarily drawn to a true scale.

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a schematic diagram of the overall structure of the control handle of the tool-changing punching machine of the present invention at the first angle when it is in the initial position; Figure 2 This is a schematic diagram of the overall structure of the control handle of the tool-changing punching machine of the present invention at the second angle when it is in the initial position; Figure 3 This is a partial structural diagram of the control handle 300 of the tool core changing drilling machine of the present invention when it is in the lowest stroke position; Figure 4 yes Figure 3 Enlarged view of circle A; Figure 5This is an exploded structural diagram of the core-changing drilling machine of the present invention at one angle; Figure 6 This is an exploded structural diagram of the replaceable core unit 200 at an angle described in the core-changing drilling machine of the present invention; Figure 7 This is a schematic diagram of the structure of the pressing and fixing plate 410 of the tool core changing and punching machine of the present invention, which assists in installing the mounting iron ring 2 on the sheet material 1 that has been punched in the first initial position; Figure 8 This is a schematic diagram of the overall structure of the pressing and fixing plate 410 of the tool core changing and drilling machine of the present invention when it is used for pressing the iron ring in the first initial position; Figure 9 This is a schematic diagram of the overall structure of the pressing and fixing plate 410 of the tool core changing and drilling machine of the present invention when it is used for pressing the iron ring in the first initial position; Figure 10 This is a schematic diagram of the overall structure of the pressing and fixing plate 410 of the tool core changing and drilling machine of the present invention when it is used for pressing the iron ring in the second initial position.

[0011] Explanation of reference numerals in the attached figures: 1. Sheet material; 2. Binding ring; 100. Mounting base; 200. Replaceable cutter core unit; 300. Control handle; 400. Ring pressing assembly; 500. Elastic reset assembly; 600. Drive gear; 700. Transmission element; 800. Limiting assembly; 900. Base positioning assembly; 110. Limiting control through slot; 120. Handle mounting shaft; 130. Mounting recess; 140. Ring mounting part; 210. Drilling assembly; 211. Drilling pressure plate; 212. Drilling cutter; 310. Handle mounting hole ; 410, Pressing fixed plate; 420, Pressing movable plate; 430, Adjustment control component; 431, Adjustment slide rod; 432, Adjustment control part; 440, Adjustment actuator; 441, Adjustment slide groove; 450, Engaging component; 510, Elastic element; 520, Abutment rod; 610, First tooth; 620, Second tooth; 710, Transmission engagement hole; 720, Actuation plate; 721, Actuation slot; 810, Limiting plate; 811, Locking abutment part; 820, Control card; 821, Control abutment part. Detailed Implementation

[0012] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0013] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0014] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0015] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0016] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0017] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0018] Reference Figures 1 to 10 A core-changing punching machine, comprising: Mounting base 100 is used to support the sheet material to be drilled; A replaceable core unit 200 is detachably mounted on the mounting base 100, and the replaceable core unit 200 includes a drilling assembly 210. A control handle 300 is rotatably connected to the mounting base 100, and the rotation of the control handle 300 drives the punching assembly 210 of the replaceable core unit 200 to move downward to perform punching on the sheet material 1 supported on the mounting base 100.

[0019] With the above-described structure, during use, the mounting base 100 serves as the basic load-bearing structure, providing a stable platform for the sheet material 1 to be drilled, ensuring the sheet material 1 remains fixed in position during the drilling process, and serving as the benchmark for the entire equipment's operation. The replaceable blade unit 200 is detachably connected to the mounting base 100, and its included drilling component 210 is the core component for performing the drilling operation. The detachable design allows the equipment to quickly replace the appropriate replaceable blade unit 200 according to different drilling needs, greatly improving the equipment's versatility and flexibility. The control handle 300 is rotatably connected to the mounting base 100. The operator drives the drilling component 210 downward by rotating the control handle 300, using mechanical transmission to punch and drill holes in the sheet material. This simplifies the operation process and ensures stable and controllable drilling force through the force transmission of the control handle 300. Through the functional division and linkage of each component, the entire system achieves convenient, precise, and flexibly adjustable drilling operations on sheet materials.

[0020] This embodiment also includes a metal ring pressing assembly 400, which includes a pressing fixed plate 410 and a pressing movable plate 420. When the control handle 300 is rotated downwards, the pressing movable plate 420 moves toward the pressing fixed plate 410 and presses the binding metal ring 2 located between the pressing fixed plate 410 and the pressing movable plate 420. The initial position of the pressing fixed plate 410 is adjustable to accommodate binding metal rings 2 of different specifications. With the addition of the metal ring pressing assembly 400, the punching and binding functions are integrated, allowing users to directly bind metal rings without switching equipment after punching, thus improving work efficiency. The pressing fixed plate 410 and pressing movable plate 420 cooperate to form the pressing working area. When the control handle 300 is rotated downwards, the pressing movable plate 420 moves towards the pressing fixed plate 410, realizing the pressing and sealing of the binding ring 2. This linkage design allows drilling and pressing to share the same power source, avoiding the structural bulkiness caused by adding an additional drive mechanism. At the same time, the initial position of the pressing fixed plate 410 is adjustable. Users can quickly adjust the initial distance between the pressing fixed plate 410 and the pressing movable plate 420 according to the binding requirements, adapting to different specifications of binding rings 2 without replacing the pressing components or using additional tools, greatly improving the equipment's compatibility with different binding specifications. The overall system achieves efficient one-stop operation from drilling to binding through the synergistic integration of drilling and pressing functions and the flexible adjustment of the pressing distance.

[0021] In this embodiment, the iron ring pressing assembly 400 further includes an adjustment control component 430 and an adjustment actuator 440. The adjustment actuator 440 is fixedly connected to the pressing fixing plate 410, and the adjustment control component 430 is slidably connected to the adjustment actuator 440. By controlling the adjustment actuator 440, the initial position of the pressing fixing plate 410 is controlled to move closer to or further away from the pressing movable plate 420. The adjustment actuator 440 is provided with an adjustment groove 441, and the adjustment control component 430 is provided with an adjustment rod 431. The adjustment rod 431 is slidably connected to the adjustment groove 441. By sliding the adjustment rod 431 relative to the pressing movable plate 420, the adjustment is adjusted. The position of the sliding groove 441 controls the position of the adjusting actuator 440, thereby controlling the initial position of the pressing fixing plate 410 to be closer to or further away from the pressing movable plate 420. The adjusting control member 430 is provided with an adjusting control part 432. The mounting base 100 also includes a limiting control through groove 110. The adjusting control part 432 extends through and is slidably connected to the limiting control through groove 110. The mounting base 100 is provided with a handle mounting shaft 120. The control handle 300 is provided with a handle mounting hole 310 that cooperates with the handle mounting shaft 120. The mounting base 100 and the control handle 300 are rotatably connected through the handle mounting shaft 120. With the above-described structure, during use, the adjusting actuator 440 is fixedly connected to the pressing and fixing plate 410, and the adjusting control component 430 is slidably connected to the adjusting actuator 440. Together, they form a transmission chain for adjusting the position of the pressing and fixing plate 410. The user can precisely control the position of the adjusting actuator 440 by operating the adjusting control component 430, thereby moving the pressing and fixing plate 410 closer to or further away from the pressing and moving plate 420, achieving stepless adjustment of the pressing gap. The adjusting groove 441 on the adjusting actuator 440 and the adjusting rod 431 on the adjusting control component 430 slide in cooperation. The cooperation structure of the groove and the rod provides precise motion guidance and limits for the adjustment process, ensuring that the pressing and fixing plate 410 maintains a stable translational trajectory during adjustment, avoiding pressing misalignment or uneven force due to adjustment deviation. Simultaneously, the specific stroke design of the groove also limits the adjustment range, preventing user error from exceeding the compatible specifications. The adjustment control unit 430 is provided with an adjustment control section 432 that extends through and slides through the limit control channel 110 of the mounting base 100. This structure places the adjustment operation interface on the surface of the equipment, allowing users to make adjustments directly without disassembling the equipment, greatly improving the convenience and visibility of the adjustment. At the same time, the cooperation between the limit control channel 110 and the adjustment control section 432 further limits the adjustment stroke and forms a double limit protection with the adjustment slide 441, ensuring the safety and reliability of the adjustment operation.Furthermore, the mounting base 100 is rotatably connected to the control handle 300 via a handle mounting shaft 120 and a handle mounting hole 310. This shaft-hole connection provides a precise rotational fulcrum for the entire power transmission, ensuring stability and transmission accuracy during handle swinging, and laying a structural foundation for efficient and reliable execution of drilling and pressing actions. Overall, the above structure, through the refined design of the adjustment components and the optimization of the handle connection structure, achieves convenient and precise adjustment of the pressing gap, as well as the stability and reliability of the entire machine's transmission system, further enhancing the equipment's adaptability to different specifications of binding rings and improving the user experience.

[0022] In this embodiment, an elastic reset component 500 is also included. The elastic reset component 500 is sleeved on the handle mounting shaft 120. The elastic reset component 500 is used to drive the control handle 300 to automatically reset to the initial position after drilling is completed. The elastic reset component 500 includes an elastic element 510 and an abutment rod 520. The abutment rod 520 is fixedly connected to the mounting base 100, and the elastic element 510 is sleeved on the handle mounting shaft 120 and abuts against the abutment rod 520. Through the above structural design, the introduction of the elastic reset component 500 adds an automatic reset function to the device, further improving the ease of operation and user experience. Specifically, the elastic reset component 500 is sleeved on the handle mounting shaft 120, making full use of the structural basis of the handle mounting shaft 120 as a rotation fulcrum, realizing the compact integration of the elastic reset component 500 and the transmission mechanism without occupying additional internal space of the device. The elastic reset assembly 500 includes an elastic element 510 and a contact rod 520. The contact rod 520 is fixedly connected to the mounting base 100, providing a stable contact point for the elastic element 510. The elastic element 510 is sleeved on the handle mounting shaft 120 and abuts against the contact rod 520. When the control handle 300 is rotated downwards for drilling or pressing operations, the elastic element 510 is compressed and stores energy. After the operation is completed, the operator releases the control handle 300, the elastic element 510 releases the stored energy, and drives the control handle 300 to automatically rotate in the opposite direction to reset to the initial position. The automatic reset design eliminates the need for the operator to manually return the control handle 300, effectively simplifying the operation steps. It is especially suitable for work scenarios that require multiple consecutive drilling operations or frequent switching between drilling and pressing functions, significantly improving work efficiency and operational smoothness. At the same time, the coaxial sleeved layout of the elastic reset assembly 500 and the handle mounting shaft 120 ensures that the reset force acts directly on the rotation axis, avoiding the influence of off-center torque on transmission accuracy and guaranteeing the stability and reliability of the reset process. Overall, the elastic reset component 500, through its integrated design with the handle mounting shaft 120, achieves a cyclical operation mode of pressing and automatic reset, which not only reduces the operator's labor intensity but also provides a structural basis for the locking and unlocking of the subsequent limit component 800.

[0023] In this embodiment, a drive gear 600 and a transmission element 700 are also included. The drive gear 600 is fixedly sleeved on the handle mounting shaft 120 and has a first tooth 610. The transmission element 700 is vertically and slidably connected to the mounting base 100, and the transmission element 700 has a transmission engagement hole 710 that meshes with the first tooth 610. When the control handle 300 is rotated downwards, the drive gear 600 rotates accordingly, and the first tooth 610 meshes with the transmission engagement hole 710 to drive the transmission element 700 to move downwards. The 700 also includes an execution plate 720 with an execution slot 721. The drilling assembly 210 includes a drilling pressure plate 211 and a drilling cutter 212. The execution slot 721 engages with the drilling pressure plate 211, and the drilling pressure plate 211 abuts against the drilling cutter 212. When the transmission element 700 moves downward, it drives the execution plate 720 downward, which in turn drives the drilling cutter 212 downward through the drilling pressure plate 211 engaged with the execution slot 721, thereby drilling holes in the sheet material 1 supported on the mounting base 100. Through the above structural arrangement, the cooperation between the drive gear 600 and the transmission element 700 constitutes a transmission link that converts the rotational motion of the control handle 300 into the linear motion of the drilling assembly 210. Specifically, the drive gear 600 is fixedly sleeved on the handle mounting shaft 120. When the control handle 300 is rotated downwards, the drive gear 600 rotates synchronously. Its first tooth 610 meshes with the transmission engagement hole 710 on the transmission element 700. Compared with the traditional gear and rack structure, the engagement of the first tooth 610 and the transmission engagement hole 710 has a larger contact area and a better force distribution, which can effectively withstand the instantaneous impact load generated during the drilling process and ensure the smooth and reliable transmission process. The transmission element 700 is vertically and slidably connected to the mounting base 100. Through the meshing of the first tooth 610 and the transmission engagement hole 710, the rotational motion of the drive gear 600 is accurately converted into the vertical linear motion of the transmission element 700. The transmission method has a compact structure and a stable transmission ratio, so that the torque input by the operator through the control handle 300 can be transmitted to the drilling assembly 210 in a constant ratio, ensuring the controllability and consistency of the drilling force. The transmission element 700 is provided with an execution plate 720 that is snapped into the punching plate 211 through an execution slot 721. The punching plate 211 abuts against the punching knife 212. This snap-fit ​​connection structure enables quick assembly and disassembly between the transmission element 700 and the replaceable knife core unit 200. When the knife core unit needs to be replaced, it can be disassembled simply by detaching the execution slot 721 from the punching plate 211 without the need for tools or disassembling other transmission components, which greatly improves the efficiency and convenience of knife core replacement.When the transmission element 700 moves downward, it sequentially drives the actuator plate 720, the punching plate 211, and the punching blade 212 downward, ultimately performing a punching operation on the sheet material 1 supported on the mounting base 100. Overall, this invention achieves stable power transmission, high transmission efficiency, and convenient blade replacement through the meshing transmission of the drive gear 600 and the transmission engagement hole 710, and the quick-connect engagement of the actuator plate 720 and the punching plate 211. This provides a reliable guarantee for multi-specification adaptation and long-term stable operation of the equipment.

[0024] In this embodiment, a limiting component 800 is also included. The limiting component 800 is used to lock the control handle 300 at the lowest position of its swing stroke. The limiting component 800 includes a limiting plate 810 and a control card 820. The limiting plate 810 is fixedly connected to the execution plate 720 so as to move with the movement of the execution plate 720. The limiting plate 810 is provided with a locking abutment part 811. The control card 820 is slidably connected to the mounting base 100 and is provided with a control abutment part 821. When the control handle 300 is locked at the lowest position of its swing stroke, the control abutment part 821 can selectively abut against the locking abutment part 811. When the control abutment part 821 abuts against the locking abutment part 811, the limiting component 800 overcomes the elastic force of the elastic reset component 500 and locks the control handle 300. Through the above structural design, the introduction of the limiting component 800 provides the device with a transient holding function for the control handle 300, further enriching the flexibility of the operation mode. Specifically, the limiting plate 810 is fixedly connected to the execution plate 720 and can move synchronously with the movement of the execution plate 720. This connection method directly links the position of the limiting plate 810 with the vertical position of the transmission element 700, eliminating the need for additional independent detection or linkage mechanisms, resulting in a simple structure and clear transmission path. The limiting plate 810 is provided with a locking abutment part 811, and the control card 820 is slidably connected to the mounting base 100 and is also provided with a control abutment part 821. When the control handle 300 is rotated to the lowest position of the swing stroke, the user can slide the control card 820 to selectively abut the control abutment part 821 against the locking abutment part 811, thereby achieving rapid establishment and release of the locked state. When the control abutment part 821 abuts against the locking abutment part 811, the limiting component 800 overcomes the elastic force of the elastic reset component 500, firmly locking the control handle 300 in its lowest position. In the locked state, the overall height of the device is significantly reduced compared to the handle reset state, allowing the device to be packaged or stored in its smallest possible form. This reduces packaging box size and transportation and storage costs, and also facilitates storage after use, making it particularly suitable for scenarios with limited office space or frequent relocation. When the device needs to be used again, the user only needs to slide the control card 820 in the opposite direction to unlock it, and the elastic reset component 500 automatically drives the control handle 300 to reset to its initial position, restoring the device to its ready-to-operate state. Overall, the limiting component 800, through its follow-up connection with the execution card plate 720 and its coordinated cooperation with the elastic reset component 500, achieves a complete functional closed loop of operation—locking and storage—automatic reset, meeting the needs of multiple operation scenarios and improving the product's portability and space adaptability by optimizing the overall storage form.

[0025] In this embodiment, a base positioning component 900 is also included. The base positioning component 900 is disposed on the mounting base 100 and is used for lateral adjustment of the position of the sheet material 1 to be drilled. Through the above structural design, the introduction of the base positioning component 900 further improves the positioning accuracy and operational flexibility of the equipment for the sheet material 1, providing users with more refined operation control. The addition of lateral adjustment function to the base positioning component 900 complements the stable load-bearing capacity of the mounting base 100 and the specification adaptation of the replaceable core unit 200, upgrading the equipment from coarse positioning to precise positioning, providing users with a more professional, efficient, and accurate drilling operation experience.

[0026] In this embodiment, the mounting base 100 is provided with a mounting groove 130, and the outer contour of the bottom of the replaceable blade unit 200 matches the mounting groove 130. Through the above structural design, the matching design of the mounting groove 130 and the outer contour of the bottom of the replaceable blade unit 200 provides a precise structural guarantee for the rapid positioning and stable installation of the blade unit. The precise matching of the mounting groove 130 and the outer contour of the bottom of the replaceable blade unit 200 achieves rapid positioning, tool-free installation, and stable load-bearing of the replaceable blade unit 200, improving the efficiency and convenience of blade replacement and laying a structural foundation for the long-term stable operation of the equipment under the switching of multiple blade specifications.

[0027] In this embodiment, the iron ring pressing assembly 400 further includes a connecting member 450, which is fixedly connected to the pressing movable plate 420. The connecting member 450 is provided with a pressing engagement hole 451, and the drive gear 600 is also provided with a second tooth 620. When the control handle 300 is rotated downward, the drive gear 600 engages with the pressing engagement hole 451 through the second tooth 620, driving the connecting member 450 and thus driving the pressing movable plate 420 to move towards the pressing fixed plate 410, and pressing the mounting iron ring 2 located between the pressing fixed plate 410 and the pressing movable plate 420. Through the above structural arrangement, the addition of the connecting member 450 establishes a direct transmission connection between the iron ring pressing assembly 400 and the drive gear 600, realizing a highly integrated design where the drilling and pressing functions share the same power source. Specifically, the joining member 450 is fixedly connected to the pressing movable plate 420, and has a pressing engagement hole 451. In addition to a first tooth 610 that meshes with the transmission element 700, the drive gear 600 also has a second tooth 620. When the control handle 300 rotates downwards, the drive gear 600 rotates synchronously, and the second tooth 620 meshes with the pressing engagement hole 451, driving the joining member 450 to move the pressing movable plate 420 towards the pressing fixed plate 410, thus completing the pressing and sealing of the binding ring 2. This structural design allows one control handle 300 and one drive gear 600 to simultaneously drive the punching assembly 210 to perform the punching action and the pressing movable plate 420 to perform the pressing action, achieving true multi-purpose functionality and avoiding the structural complexity and increased cost associated with setting up a separate drive mechanism for the pressing function. Meanwhile, the engagement of the first tooth 610 with the transmission engagement hole 710 and the engagement of the second tooth 620 with the pressing engagement hole 451 can be differentiated according to actual functional requirements. For example, by setting different transmission ratios or initial engagement phases, the drilling and pressing actions can be completed simultaneously or in stages within the same rotation stroke of the control handle 300, ensuring both independent controllability of the two functions and optimizing the continuity of the operation process. Overall, this structure integrates the two core functions of drilling and pressing into the same transmission link through the cooperation of the connecting member 450 and the second tooth 620 of the drive gear 600. While maintaining the compact structure of the whole machine, it significantly improves the functional integration and operating efficiency, providing users with a smoother one-stop operation experience.

[0028] In this embodiment, the mounting base 100 further includes a metal ring mounting part 140, which is correspondingly arranged with the metal ring pressing assembly 400. The metal ring mounting part 140 assists in installing the binding metal ring 2 onto the perforated sheet material 1 before the metal ring pressing assembly 400 presses it. Through this structural arrangement, the addition of the metal ring mounting part 140 further improves the overall functional layout of the equipment from punching to binding, providing users with a more convenient and orderly binding operation experience. Specifically, through its corresponding arrangement and functional coordination with the metal ring pressing assembly 400, the metal ring mounting part 140 achieves a reasonable division of labor and smooth connection between the two steps of threading and pressing in the binding operation, reducing the difficulty of the binding operation and improving overall work efficiency and the consistency of finished product quality.

[0029] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered within the scope of protection of the present invention.

Claims

1. A core-changing punching machine, characterized in that, include: Mounting base (100) is used to support the sheet material (1) to be drilled; A replaceable core unit (200) is detachably mounted on the mounting base (100), the replaceable core unit (200) includes a punching assembly (210); a control handle (300) is rotatably connected to the mounting base (100), and rotation of the control handle (300) drives the punching assembly (210) of the replaceable core unit (200) to move downward to perform punching on the sheet material (1) supported on the mounting base (100); The iron ring pressing assembly (400) includes a pressing fixed plate (410) and a pressing movable plate (420). When the control handle (300) is rotated downward, the pressing movable plate (420) moves toward the pressing fixed plate (410) and presses the binding iron ring (2) located between the pressing fixed plate (410) and the pressing movable plate (420). The initial position of the pressing fixed plate (410) is adjustable to accommodate binding iron rings (2) of different specifications.

2. The core-changing drilling machine according to claim 1, characterized in that, The iron ring pressing assembly (400) further includes an adjustment control component (430) and an adjustment actuator (440). The adjustment actuator (440) is fixedly connected to the pressing fixed plate (410), and the adjustment control component (430) is slidably connected to the adjustment actuator (440). By controlling the adjustment actuator (440), the initial position of the pressing fixed plate (410) is controlled to move closer to or further away from the pressing movable plate (420). The adjustment actuator (440) is provided with an adjustment groove (441), and the adjustment control component (430) is provided with an adjustment rod (431). The adjusting slide rod (431) is slidably connected to the adjusting slide groove (441). By adjusting the position of the adjusting slide rod (431) relative to the adjusting slide groove (441), the position of the adjusting actuator (440) is controlled, thereby controlling the initial position of the pressing fixing plate (410) to be closer to or further away from the pressing movable plate (420). The adjusting control member (430) is provided with an adjusting control part (432), and the mounting base (100) also includes a limiting control through groove (110). The adjusting control part (432) extends out and is slidably connected to the limiting control through groove (110).

3. The core-changing drilling machine according to claim 1, characterized in that, The mounting base (100) is provided with a handle mounting shaft (120), and the control handle (300) is provided with a handle mounting hole (310) that cooperates with the handle mounting shaft (120). The mounting base (100) and the control handle (300) are rotatably connected through the handle mounting shaft (120).

4. The core-changing drilling machine according to claim 3, characterized in that, It also includes an elastic reset assembly (500), which is sleeved on the handle mounting shaft (120); the elastic reset assembly (500) is used to drive the control handle (300) to automatically reset to the initial position after drilling is completed; the elastic reset assembly (500) includes an elastic element (510) and an abutment rod (520), the abutment rod (520) is fixedly connected to the mounting base (100), and the elastic element (510) is sleeved on the handle mounting shaft (120) and abuts against the abutment rod (520).

5. The core-changing drilling machine according to claim 4, characterized in that, It also includes a drive gear (600) and a transmission element (700). The drive gear (600) is fixedly sleeved on the handle mounting shaft (120) and has a first tooth (610). The transmission element (700) is vertically and slidably connected to the mounting base (100), and the transmission element (700) has a transmission engagement hole (710) that meshes with the first tooth (610). When the control handle (300) is rotated downwards, the drive gear (600) rotates accordingly, and drives the transmission element (700) to move downwards through the meshing of the first tooth (610) with the transmission engagement hole (710). The transmission element (700) also... An execution plate (720) is provided, and the execution plate (720) is provided with an execution slot (721). The drilling assembly (210) includes a drilling pressure plate (211) and a drilling knife (212). The execution slot (721) is engaged with the drilling pressure plate (211), and the drilling pressure plate (211) abuts against the drilling knife (212). When the transmission element (700) moves downward, it drives the execution plate (720) to move downward, and then drives the drilling knife (212) to move downward through the drilling pressure plate (211) engaged with the execution slot (721) to drill holes in the sheet material (1) supported on the mounting base (100).

6. The core-changing drilling machine according to claim 5, characterized in that, It also includes a limiting component (800) for locking the control handle (300) at the lowest position of its swing stroke; the limiting component (800) includes a limiting plate (810) and a control card (820), the limiting plate (810) is fixedly connected to the actuating plate (720) to move with the movement of the actuating plate (720), and the limiting plate (810) is provided with a locking abutment (811); the control card (820) is slidably The control card (820) is connected to the mounting base (100) and is provided with a control abutment (821). When the control handle (300) is locked at the lowest swing stroke position, the control abutment (821) can selectively abut against the locking abutment (811). When the control abutment (821) abuts against the locking abutment (811), the limiting component (800) overcomes the elastic force of the elastic reset component (500) and locks the control handle (300).

7. The core-changing drilling machine according to claim 1, characterized in that, It also includes a base positioning component (900), which is disposed on the mounting base (100) and is used to adjust the position of the sheet material (1) to be punched laterally.

8. The core-changing drilling machine according to claim 1, characterized in that, The mounting base (100) is provided with a mounting groove (130), and the outer contour of the bottom of the replaceable blade unit (200) matches the mounting groove (130).

9. The core-changing drilling machine according to claim 2, characterized in that, The iron ring pressing assembly (400) further includes a connecting member (450), which is fixedly connected to the pressing movable plate (420). The connecting member (450) is provided with a pressing engagement hole (451), and the drive gear (600) is also provided with a second tooth (620). When the control handle (300) is rotated downward, the drive gear (600) engages with the pressing engagement hole (451) through the second tooth (620), thereby driving the connecting member (450) and the pressing movable plate (420) to move toward the pressing fixed plate (410) and press the binding iron ring (2) located between the pressing fixed plate (410) and the pressing movable plate (420).

10. The core-changing drilling machine according to claim 1, characterized in that, The mounting base (100) also includes a ring mounting part (140), which is correspondingly provided with the ring pressing assembly (400) and is used to assist in installing the ring (2) onto the perforated sheet material (1) before the ring pressing assembly (400) presses the ring (2).

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