A cutting machine with a whole body synchronous moving knife
Patent Information
- Application Number
- CN202521960133.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-12
AI Technical Summary
现有技术中用于挤塑机的数控裁切机主要存在三点不足：一是传统固定式裁切无法同步跟随连续挤出的软质材料（如塑料条），导致裁切时材料堆积变形；二是机械结构多采用分体驱动（如独立移动模块与裁切模块），同步性差且易因时序误差引发堵料；三是人工干预需求高（如手动调整进料速度），难以实现裁切动作与挤出速度的动态匹配
1、本实用新型在使用时，启动驱动电机并通过同步带带动主轴旋转，一方面主轴带动两端曲柄转动，进而通过连杆将旋转运动转化为上刀安装架位于主体罩板内部的上下往复移动，另一方面主轴带动中部凸轮转动，进而通过连接架带动滑动座位于支撑框架顶端两侧的滑轨上前后移动，滑动座之上还安装有受电机驱动的输送带，使得本申请通过单主轴双凸轮结构，仅通过一根传动主轴集成竖向裁切与横向位移两套连杆凸轮系统，实现裁切动作与机器整体后移的严格同步，裁切刀在接触材料的瞬间，机器上部同步后退，确保切割面平整无拉扯，适用于连续挤出且无法暂停的挤塑生产线，彻底解决软质挤塑材料因异步操作导致的堆积变形问题，输送带持续送料加同步裁切设计，直接省去一名人工操作员，降低人力成本，并有效缩短裁切周期，较传统分步式裁切效率得到提升。
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Figure CN224659554U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting machine technology, specifically a cutting machine with an integral synchronous moving blade. Background Technology
[0002] CNC cutting machines for extruders are high-precision devices specifically designed for the automated cutting of extruded materials (such as plastic insulation boards). They support moldless operation and complex shape processing with high cutting accuracy. Existing CNC cutting machines for extruders suffer from three main shortcomings: First, traditional fixed cutting cannot synchronously follow the continuous extrusion of soft materials (such as plastic strips), leading to material accumulation and deformation during cutting; second, the mechanical structure often uses separate drives (such as independent moving modules and cutting modules), resulting in poor synchronization and susceptibility to material blockage due to timing errors; and third, there is a high demand for manual intervention (such as manually adjusting the feeding speed), making it difficult to achieve dynamic matching between the cutting action and the extrusion speed. Utility Model Content
[0003] The purpose of this invention is to provide a cutting machine with an integral synchronous moving blade to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a cutting machine with an integral synchronous moving blade, comprising a support frame, wherein a drive motor is fixed to the inner side of the top of the support frame by mounting plate bolts, and a synchronous belt is sleeved on the outer circle of a pulley fixed to the rotating end of the drive motor, wherein a main shaft is driven by the pulley through the synchronous belt at the end opposite to the drive motor, and a cam is coaxially mounted in the middle of the main shaft, and cranks are coaxially mounted at both ends of the main shaft.
[0005] Furthermore, the support frame is equipped with door panels around its perimeter, and a power distribution cabinet is installed inside the support frame.
[0006] Furthermore, the support frame is welded and fixed with reinforcing ribs on its side ends, and slide rails are fixedly installed on both sides of the top of the support frame along the length direction.
[0007] Furthermore, a connecting rod is rotatably connected to the crank, and an upper tool mounting bracket is connected to the end of the connecting rod opposite to the crank.
[0008] Furthermore, the upper blade mounting bracket is located inside the upper part of the main body cover plate, and rails are fixedly installed on both sides of the recess of the main body cover plate, and the upper blade mounting bracket moves up and down inside the main body cover plate via the rails.
[0009] Furthermore, a lower blade mounting bracket is correspondingly provided below the upper blade mounting bracket, and the lower blade mounting bracket is fixedly installed inside the lower part of the main body cover plate. The main body cover plate is fixedly installed on the front end of the sliding seat, and the sliding seat slides in cooperation with the slide rails on both sides of the top of the support frame.
[0010] Furthermore, a support member is fixedly installed at the rear end of the sliding seat, and an aluminum profile is fixedly installed on the support member.
[0011] Furthermore, rollers are rotatably mounted at both ends of the aluminum profile, one of which is driven by a motor, and a conveyor belt is sleeved between the two rollers. A connecting frame is fixedly installed in the middle of the aluminum profile, and the connecting frame is connected to a cam.
[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In use, this utility model starts the drive motor and drives the main shaft to rotate via the synchronous belt. On one hand, the main shaft drives the cranks at both ends to rotate, and then the rotational motion is converted into the up-and-down reciprocating movement of the upper blade mounting bracket inside the main body cover plate through the connecting rod. On the other hand, the main shaft drives the central cam to rotate, and then the sliding seat moves back and forth on the slide rails on both sides of the top of the support frame through the connecting frame. A conveyor belt driven by the motor is also installed on the sliding seat. This application, through the single main shaft double cam structure, integrates two sets of connecting rod cam systems for vertical cutting and horizontal displacement through only one transmission main shaft, achieving strict synchronization between the cutting action and the overall backward movement of the machine. The upper part of the machine moves backward synchronously at the moment the cutting blade contacts the material, ensuring a flat and tear-free cut surface. It is suitable for extrusion production lines that are continuously extruded and cannot be stopped, completely solving the problem of accumulation and deformation of soft extruded materials caused by asynchronous operation. The continuous feeding of the conveyor belt and the synchronous cutting design directly save one human operator, reduce labor costs, and effectively shorten the cutting cycle, improving efficiency compared to traditional step-by-step cutting. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a bottom view of the structure of the device of this utility model; Figure 3 This is a top view of the device of this utility model. In the figure: 1. Support frame; 2. Door panel; 3. Power distribution cabinet; 4. Reinforcing rib; 5. Slide rail; 6. Drive motor; 7. Synchronous belt; 8. Main shaft; 9. Cam; 10. Crank; 11. Connecting rod; 12. Upper blade mounting bracket; 13. Main body cover plate; 14. Track; 15. Lower blade mounting bracket; 16. Sliding seat; 17. Support component; 18. Aluminum profile; 19. Roller; 20. Conveyor belt; 21. Connecting frame. Detailed Implementation
[0014] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0015] like Figures 1 to 3As shown, a cutting machine with an integral synchronous moving blade includes a support frame 1. A drive motor 6 is fixed to the inner side of the top of the support frame 1 by mounting plate bolts. A synchronous belt 7 is sleeved on the outer circle of the pulley fixed to the rotating end of the drive motor 6. The synchronous belt 7 is driven by a main shaft 8 through the pulley at the end opposite to the drive motor 6. A cam 9 is coaxially installed in the middle of the main shaft 8, and cranks 10 are coaxially installed at both ends of the main shaft 8. The specific operation is as follows: Start the drive motor 6 and drive the main shaft 8 to rotate through the synchronous belt 7. On the one hand, the main shaft 8 drives the cranks 10 at both ends to rotate, and then through the connecting rod 11, the rotational motion is converted into the up-and-down reciprocating movement of the upper tool mounting bracket 12 inside the main body cover plate 13. On the other hand, the main shaft 8 drives the middle cam 9 to rotate, and then through the connecting frame 21, drives the sliding seat 16 to move back and forth on the slide rails 5 on both sides of the top of the support frame 1. A conveyor belt 20 driven by the motor is also installed on the sliding seat 16. like Figures 1 to 3 As shown, door panels 2 are installed around the support frame 1, and a power distribution cabinet 3 is installed inside the support frame 1. Reinforcing ribs 4 are welded and fixed to the side ends of the support frame 1, and slide rails 5 are fixedly installed on both sides of the top of the support frame 1 along its length. A connecting rod 11 is rotatably connected above the crank 10, and an upper blade mounting bracket 12 is connected to the end of the connecting rod 11 away from the crank 10. The upper blade mounting bracket 12 is located inside the upper part of the main body cover plate 13, and rails 14 are fixedly installed on both sides of the recess in the main body cover plate 13. The upper blade mounting bracket 12 moves up and down inside the main body cover plate 13 via the rails 14. Correspondingly, a [missing information - likely a design feature] is installed below the upper blade mounting bracket 12. A lower blade mounting bracket 15 is provided and is fixedly installed inside the lower part of the main body cover plate 13. The main body cover plate 13 is fixedly installed on the front end of the sliding seat 16, and the sliding seat 16 is slidably engaged with the slide rails 5 on both sides of the top of the support frame 1. A support member 17 is fixedly installed at the rear end of the sliding seat 16, and an aluminum profile 18 is fixedly installed on the support member 17. Rollers 19 are rotatably installed at both ends of the aluminum profile 18, and one side of the roller 19 is driven by a motor. A conveyor belt 20 is sleeved between the two rollers 19. A connecting frame 21 is fixedly installed in the middle of the aluminum profile 18, and the connecting frame 21 is connected to the cam 9. The specific operation is as follows: This application adopts a single spindle 8 double cam 9 structure, which integrates two sets of linkage 11 cam 9 systems for vertical cutting and horizontal displacement through only one transmission spindle 8, to achieve strict synchronization between the cutting action and the overall backward movement of the machine. At the moment the cutting blade contacts the material, the upper part of the machine moves backward synchronously, ensuring that the cut surface is flat and without pulling. It is suitable for extrusion production lines that are continuously extruded and cannot be stopped, and completely solves the problem of accumulation and deformation of soft extruded materials caused by asynchronous operation. The continuous feeding of the conveyor belt 20 and the synchronous cutting design directly save one human operator, reduce labor costs, and effectively shorten the cutting cycle, thus improving efficiency compared with traditional step-by-step cutting.
[0016] Working principle: The drive motor 6 is started and drives the main shaft 8 to rotate via the synchronous belt 7. On one hand, the main shaft 8 drives the cranks 10 at both ends to rotate, which in turn converts the rotational motion into the up-and-down reciprocating movement of the upper tool mounting bracket 12 inside the main body cover plate 13 via the connecting rod 11. On the other hand, the main shaft 8 drives the central cam 9 to rotate, which in turn drives the sliding seat 16 to move back and forth on the slide rails 5 on both sides of the top of the support frame 1 via the connecting frame 21. A conveyor belt 20 driven by the motor is also installed on the sliding seat 16, so that this application, through the single main shaft 8 and double cam 9 structure, only needs one The root drive spindle 8 integrates two sets of linkages 11 and cam 9 systems for vertical cutting and lateral displacement, achieving strict synchronization between the cutting action and the overall backward movement of the machine. The upper part of the machine synchronously retracts at the instant the cutting blade contacts the material, ensuring a flat, tear-free cut surface. This design is suitable for continuous extrusion production lines that cannot be paused, completely solving the problem of accumulation and deformation of soft extruded materials caused by asynchronous operation. The conveyor belt 20 continuously feeds and the synchronous cutting design directly eliminates the need for a human operator, reducing labor costs and effectively shortening the cutting cycle, thus improving efficiency compared to traditional step-by-step cutting. The embodiments of this utility model are given for illustrative and descriptive purposes only and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of this utility model and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A cutting machine with an integral synchronous moving blade, comprising a support frame (1), characterized in that, The support frame (1) has a drive motor (6) fixed to the inner side of the top end by mounting plate bolts, and the pulley fixed to the rotating end of the drive motor (6) is fitted with a synchronous belt (7). The synchronous belt (7) is driven by a main shaft (8) through the pulley on one side away from the drive motor (6). A cam (9) is coaxially installed in the middle of the main shaft (8), and cranks (10) are coaxially installed at both ends of the main shaft (8).
2. The cutting machine with an integral synchronous moving blade according to claim 1, characterized in that, The support frame (1) is equipped with door panels (2) around its perimeter, and a power distribution cabinet (3) is installed inside the support frame (1).
3. A cutting machine with an integral synchronous moving blade according to claim 2, characterized in that, The support frame (1) has a reinforcing rib (4) welded and fixed on its side end, and slide rails (5) are fixedly installed on both sides of the top of the support frame (1) along the length direction.
4. A cutting machine with an integral synchronous moving blade according to claim 3, characterized in that, A connecting rod (11) is rotatably connected to the crank (10), and an upper tool mounting bracket (12) is connected to the end of the connecting rod (11) away from the crank (10).
5. A cutting machine with an integral synchronous moving blade according to claim 4, characterized in that, The upper knife mounting bracket (12) is located inside the upper part of the main body cover plate (13), and the main body cover plate (13) has rails (14) fixedly installed on both sides of the recess, and the upper knife mounting bracket (12) moves up and down inside the main body cover plate (13) through the rails (14).
6. A cutting machine with an integral synchronous moving blade according to claim 5, characterized in that, The lower blade mounting bracket (15) is provided below the upper blade mounting bracket (12), and the lower blade mounting bracket (15) is fixedly installed inside the lower part of the main body cover plate (13). The main body cover plate (13) is fixedly installed at the front end of the sliding seat (16), and the sliding seat (16) is slidably engaged with the slide rails (5) on both sides of the top of the support frame (1).
7. A cutting machine with an integral synchronous moving blade according to claim 6, characterized in that, The sliding seat (16) is fixedly mounted with a support member (17) at its rear end, and an aluminum profile (18) is fixedly mounted on the support member (17).
8. A cutting machine with an integral synchronous moving blade according to claim 7, characterized in that, The aluminum profile (18) has rollers (19) rotatably installed at both ends, and one side roller (19) is driven by a motor, and a conveyor belt (20) is sleeved between the two rollers (19). A connecting frame (21) is fixedly installed in the middle of the aluminum profile (18), and the connecting frame (21) is connected to the cam (9).