Die cutting device for corrugated carton production

Abstract

The utility model provides a die cutting device for corrugated carton production, which comprises a support, two cylinders, a die cutting plate, a die cutter and a blade abrasion detection component, and relates to the technical field of corrugated carton production equipment. The die-cutting knife can be accurately detected every time the die-cutting knife executes a cutting task. After the die-cutting knife completes cutting of the corrugated carton, the die-cutting knife can make natural contact with the monitoring unit, and constant force is applied to the monitoring unit. The monitoring units can independently and comprehensively monitor each part of the die-cutting rule in a multi-point layout mode. Once a certain part of the die-cutting knife is worn to a critical degree or is deformed, the pressure applied to the monitoring unit by the die-cutting knife is correspondingly reduced and even disappears. At the moment, a built-in force sensor can immediately capture the change and quickly transmit a signal to a worker to prompt the worker to handle the change in time. And a worker can accurately find an abnormal point on the die-cutting knife.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated cardboard box production equipment, and in particular to a die-cutting device for corrugated cardboard box production. Background Technology

[0002] In the corrugated cardboard box production process, the die-cutting device plays a crucial role, serving as the core equipment responsible for precisely cutting corrugated cardboard into specified shapes and sizes. However, currently widely used die-cutting devices have a significant technical shortcoming: the lack of a real-time monitoring system for the wear condition of the die-cutting blades. In actual production, because the positions of corrugated cardboard boxes cannot be perfectly consistent with each loading, coupled with the repeated cutting tasks performed by the die-cutting blades, the wear degree of different parts of the blades gradually becomes uneven. Over time, this uneven wear becomes increasingly severe, ultimately weakening the stability of the die-cutting process and directly affecting the quality of the finished corrugated cardboard boxes. Currently, the industry's common method of operators relying on personal experience and visual inspection to determine when to replace the die-cutting blades is clearly insufficient in terms of accuracy. Due to the lack of continuous and accurate monitoring of the tool's condition, operators often find it difficult to accurately determine when to replace it, leading to two adverse consequences: on the one hand, the tool may be used until it is excessively worn before being replaced, at which point the cutting quality has already been compromised; on the other hand, failure to replace worn tools in a timely manner will cause a decline in the performance of the die-cutting device, resulting in reduced production efficiency and potentially increasing the risk of equipment failure. Utility Model Content

[0003] The purpose of this invention is to provide a die-cutting device for corrugated cardboard box production. This device solves the problem that in actual production, the position of corrugated cardboard boxes cannot be perfectly consistent each time they are loaded. Furthermore, the repeated cutting by the die-cutting blade causes uneven wear on different parts of the blade. Over time, this uneven wear becomes increasingly severe, ultimately weakening the stability of the die-cutting process and directly affecting the quality of the finished corrugated cardboard box.

[0004] This utility model provides a die-cutting device for corrugated cardboard box production, including a worktable, a support, two cylinders, a die-cutting plate, a die-cutting blade, and a blade wear detection assembly. The support is fixedly installed on the top of the worktable, the two cylinders are fixedly installed on the bottom of the support, the top of the die-cutting plate is fixedly connected to the driving ends of the two cylinders, the die-cutting blade is fixedly installed on the bottom of the die-cutting plate, the worktable has a cutting hole matching the die-cutting blade, and the bottom of the worktable is provided with a blade wear detection assembly for detecting the die-cutting blade. The blade wear detection assembly includes a mounting frame, a moving unit, and multiple monitoring units. The mounting frame is fixedly installed on the bottom of the worktable, the moving unit is fixedly installed on the bottom of the mounting frame, and the multiple monitoring units are fixedly installed on the moving unit.

[0005] Preferably, the moving unit includes two support plates, a screw, a motor, a slide rail, a slider, and a carrier plate. The two support plates are fixedly disposed at the bottom of the mounting frame. The two ends of the screw are rotatably connected to the two support plates respectively. The motor is fixedly disposed at the bottom of the mounting frame, and the driving end of the motor is fixedly connected to one end of the screw. The slide rail is fixedly disposed at the bottom of the mounting frame and is located below the screw. The slider is threadedly connected to the screw, and the bottom of the slider is slidably connected to the slide rail. The carrier plate is fixedly disposed at the top of the slider, and multiple monitoring units are fixedly disposed at the top of the carrier plate.

[0006] Preferably, the monitoring unit includes a support cylinder, a spring, a movable plate, a connecting block, a contact head, and a force sensor. The support cylinder is fixedly disposed on the top of the bearing plate, and a circular through hole is provided on the top of the support cylinder. The spring is located inside the support cylinder, and the bottom end of the spring is fixedly connected to the bottom of the support cylinder. The movable plate is fixedly disposed on the top of the spring, and the movable plate is slidably connected to the inner wall of the support cylinder. The connecting block is fixedly disposed on the top of the movable plate. The contact head is fixedly disposed on the top of the connecting block. The force sensor is fixedly disposed on the bottom of the support cylinder, and the force sensor is located inside the spring.

[0007] Preferably, each monitoring unit is spaced a certain distance from the previous monitoring unit.

[0008] Preferably, the screw and the support plate are connected by a bearing, the inner ring of the bearing is interference-fitted with the screw, and the outer ring of the bearing is fixedly connected to the support plate.

[0009] Preferably, the diameter of the movable plate is larger than the diameter of the circular through hole at the top of the support cylinder.

[0010] Preferably, the mounting bracket has a concave structure.

[0011] Preferably, the contact head has a rectangular structure.

[0012] This invention provides an improved die-cutting device for corrugated cardboard box production, which has the following improvements and advantages compared with the prior art: This invention achieves precise detection of the die-cutting blade each time it performs a cutting task by using a blade wear detection component installed under the worktable. After the die-cutting blade completes the cutting of the corrugated cardboard box, it naturally contacts the monitoring unit and applies a constant force. These monitoring units are arranged in a multi-point configuration, enabling independent and comprehensive monitoring of various parts of the die-cutting blade. Once a part of the die-cutting blade wears to a critical level or deforms, the pressure it applies to the monitoring unit will decrease or even disappear accordingly. At this time, the built-in force sensor immediately captures this change and quickly transmits the signal to the operator, prompting them to handle it promptly. Due to the multi-point layout of the monitoring units, the operator can accurately locate abnormal points on the die-cutting blade. In addition, this invention is equipped with a moving unit that can periodically move multiple monitoring units to adjust their positions, allowing each monitoring unit to move to a new position between the original two monitoring units, thereby achieving periodic dynamic and comprehensive monitoring. This design ensures that the monitoring unit can monitor the die-cutting knife from all angles without blind spots, effectively improving the cutting quality of corrugated boxes and providing strong support for the stability of the production process and the consistency of products. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the isometric structure of the blade wear detection component of this utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the monitoring unit of this utility model;

[0017] Figure 4 This is an isometric structural diagram of the monitoring unit of this utility model;

[0018] Figure 5 This is a top view of the monitoring unit of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Workbench; 2. Support; 3. Cylinder; 4. Die-cutting plate; 5. Die-cutting blade; 6. Blade wear detection assembly; 61. Mounting bracket; 62. Moving unit; 62-1. Support plate; 62-2. Screw; 62-3. Motor; 62-4. Slide rail; 62-5. Slider; 62-6. Bearing plate; 63. Monitoring unit; 63-1. Support cylinder; 63-2. Spring; 63-3. Moving plate; 63-4. Connecting block; 63-5. Contact head; 63-6. Force sensor. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0023] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-5This utility model provides a technical solution: a die-cutting device for corrugated cardboard box production, including a workbench 1, a support 2, two cylinders 3, a die-cutting plate 4, a die-cutting blade 5, and a blade wear detection component 6. The support 2 is fixedly installed on the top of the workbench 1, serving as the main support for the installation of the cylinders 3 and the die-cutting blade 5. The two cylinders 3 are fixedly installed at the bottom of the support 2. The top of the die-cutting plate 4 is fixedly connected to the driving ends of the two cylinders 3. The die-cutting blade 5 is fixedly installed at the bottom of the die-cutting plate 4. The cylinders 3 can drive the die-cutting blade 5 to move up and down, thereby cutting the corrugated cardboard boxes on the workbench 1. The workbench 1 has cutting holes that match the die-cutting blade 5, and the positions of the cutting holes correspond to the positions of the die-cutting blade 5, allowing the die-cutting blade 5 to pass through. The workbench 1 has a blade wear detection component 6 at its bottom for detecting the die-cutting blade 5. The blade wear detection component 6 includes a mounting frame 61, a moving unit 62, and multiple monitoring units 63. The mounting frame 61 is fixedly installed at the bottom of the workbench 1, the moving unit 62 is fixedly installed at the bottom of the mounting frame 61, and the multiple monitoring units 63 are fixedly installed on the moving unit 62. The multiple monitoring units 63 are distributed in a multi-point layout below the die-cutting blade 5 to perform comprehensive multi-point monitoring of the die-cutting blade 5. The moving unit 62 can drive the multiple monitoring units 63 to move laterally in a straight line, so that each monitoring unit 63 moves to a new position between the two monitoring units 63 in its original position, thereby realizing periodic dynamic comprehensive monitoring.

[0025] Specifically, the moving unit 62 includes two support plates 62-1, a screw 62-2, a motor 62-3, a slide rail 62-4, a slider 62-5, and a bearing plate 62-6. The two support plates 62-1 are fixedly mounted on the bottom of the mounting frame 61. The two ends of the screw 62-2 are rotatably connected to the two support plates 62-1 respectively. The motor 62-3 is fixedly mounted on the bottom of the mounting frame 61, and the driving end of the motor 62-3 is fixedly connected to one end of the screw 62-2. The drive end of -3 can drive the screw 62-2 to rotate on the support plate 62-1. The slide 62-4 is fixedly installed at the bottom of the mounting bracket 61 and is located below the screw 62-2. The slider 62-5 is threadedly connected to the screw 62-2 and the bottom of the slider 62-5 is slidably connected to the slide 62-4. The bearing plate 62-6 is fixedly installed on the top of the slider 62-5 and multiple monitoring units 63 are fixedly installed on the top of the bearing plate 62-6.

[0026] Specifically, the monitoring unit 63 includes a support cylinder 63-1, a spring 63-2, a movable plate 63-3, a connecting block 63-4, a contact head 63-5, and a force sensor 63-6. The support cylinder 63-1 is fixedly mounted on the top of the bearing plate 62-6, and a circular through hole is provided at the top of the support cylinder 63-1. The spring 63-2 is located inside the support cylinder 63-1, and its bottom end is fixedly connected to the bottom of the support cylinder 63-1. The movable plate 63-3 is fixedly mounted on the top of the spring 63-2, and is slidably connected to the inner wall of the support cylinder 63-1. The movable plate 63-3 can slide linearly up and down inside the support cylinder 63-1 through the elastic action of the spring 63-2. The connecting block 63-4 is fixedly mounted on the movable plate 63-1. At the top of 3, the contact head 63-5 is fixedly installed on the top of the connecting block 63-4. The top surface of the contact head 63-5 is in direct contact with the die-cutting blade 5. The force sensor 63-6 is fixedly installed at the bottom of the support cylinder 63-1 and is located inside the spring 63-2. After each cutting action is completed, the die-cutting blade 5 can push the contact head 63-5 and the moving plate 63-3 downward through its downward pressure until the moving plate 63-3 just contacts the sensing surface of the force sensor 63-6. Once a part of the die-cutting blade 5 is worn to a critical degree or deformed, the force applied by the die-cutting blade 5 to the corresponding force sensor 63-6 inside the monitoring unit 63 will be reduced or even disappear, indicating that the die-cutting blade 5 has reached the predetermined wear limit.

[0027] Specifically, each monitoring unit 63 is kept at a certain distance from the previous monitoring unit 63. The reserved distance is to enable the moving unit 62 to periodically drive multiple monitoring units 63 to adjust their positions, so that each monitoring unit 63 moves to a new position between the two monitoring units 63 in its original position, thereby achieving periodic dynamic comprehensive monitoring.

[0028] Specifically, the screw 62-2 and the support plate 62-1 are connected by a bearing. The inner ring of the bearing is interference-fitted with the screw 62-2, and the outer ring of the bearing is fixedly connected to the support plate 62-1. The bearing connection method ensures the stability of the screw 62-2 during rotation.

[0029] Specifically, the diameter of the movable plate 63-3 is larger than the diameter of the circular through hole at the top of the support cylinder 63-1, ensuring that the movable plate 63-3 is restricted from rising under the elastic action of the spring 63-2 and will not exceed the circular through hole at the top of the support cylinder 63-1.

[0030] Specifically, the mounting bracket 61 has a concave structure, which can provide stable support for the moving unit 62 and multiple monitoring units 63.

[0031] Specifically, the contact head 63-5 has a rectangular structure to ensure that the contact head 63-5 can make full contact with the die-cutting blade 5.

[0032] Working Principle: When the corrugated cardboard box is conveyed to the cutting position of workbench 1, the operator activates cylinder 3. The drive end of cylinder 3 then moves the die-cutting plate 4 and the die-cutting blade 5 fixed at its bottom downwards. Driven by cylinder 3, the die-cutting blade 5 begins to cut the corrugated cardboard box. During the cutting process, the bottom of the die-cutting blade 5 passes through the cutting hole and naturally contacts the contact head 63-5 of the monitoring unit 63 located below it. Due to the downward pressure of the die-cutting blade 5, the contact head 63-5 is compressed, thereby driving the movable plate 63-3 fixedly connected to it to move downwards. During the downward movement of the movable plate 63-3, the spring 63-2 located inside the support cylinder 63-1 is compressed until the bottom of the movable plate 63-3 contacts the sensing surface of the force sensor 63-6 located at the bottom of the support cylinder 63-1. At this time, the force sensor 63-6 detects the constant force transmitted from the moving plate 63-3 and maintains monitoring. After the die-cutting blade 5 cuts once, it returns to its original position, and the spring 63-2 immediately returns to its original position, waiting for the next monitoring. If a part of the die-cutting blade 5 wears to a critical degree or deforms, the pressure exerted by that part on the contact head 63-5 of the corresponding monitoring unit 63 will decrease or even disappear, causing the force transmitted from the moving plate 63-3 to the force sensor 63-6 to decrease accordingly. The force sensor 63-6 immediately captures this change and quickly transmits the signal to the control system or operator, indicating that the die-cutting blade 5 has reached the predetermined wear limit and needs to be dealt with promptly.

[0033] To achieve comprehensive monitoring, the moving unit 62 is activated after a predetermined time or number of cuts. The motor 62-3 drives the screw 62-2 to rotate. Due to the threaded connection between the slider 62-5 and the screw 62-2, and the limiting effect of the slide rail 62-4 on the slider 62-5, the slider 62-5 can only move laterally in a straight line along the slide rail 62-4. The movement of the slider 62-5 causes the support plate 62-6 fixed to its top and multiple monitoring units 63 mounted on the support plate 62-6 to move together, so that each monitoring unit 63 moves to a new position between the two monitoring units 63 in its original position. In this way, the monitoring unit 63 can cover the area of ​​the die-cutting blade 5 that was previously not monitored, thereby achieving regular dynamic comprehensive monitoring and ensuring that the wear condition of the die-cutting blade 5 is monitored without blind spots. The entire monitoring process is automatic and requires no manual intervention, effectively improving the cutting quality of corrugated boxes and the stability of the production process.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A die cutting apparatus for corrugated box production, characterized by, The utility model provides a cutting plate and cutting blade wear detection assembly, including workbench (1), support (2), two air cylinders (3), die cutting plate (4), die cutting knife (5) and blade wear detection assembly (6), support (2) fixedly arranged in the top of workbench (1), two air cylinders (3) are fixedly arranged in the bottom of support (2), the top of die cutting plate (4) is fixedly connected with the drive end of two air cylinders (3), die cutting knife (5) is fixedly arranged in the bottom of die cutting plate (4), the cutting hole that is matched with die cutting knife (5) is seted up on workbench (1), the bottom of workbench (1) is provided with the blade wear detection assembly (6) for detecting die cutting knife (5), the blade wear detection assembly (6) includes mounting bracket (61), mobile unit (62) and a plurality of monitoring units (63), mounting bracket (61) is fixedly arranged in the bottom of workbench (1), mobile unit (62) is fixedly arranged in the bottom of mounting bracket (61), a plurality of monitoring units (63) are fixedly arranged on mobile unit (62).

2. The die cutting device for corrugated box production according to claim 1, characterized in that, The mobile unit (62) includes two support plates (62-1), screw rod (62-2), motor (62-3), slide (62-4), sliding block (62-5) and bearing plate (62-6), two support plates (62-1) are fixedly arranged in the bottom of mounting bracket (61), both ends of screw rod (62-2) are rotatably connected with two support plates (62-1) respectively, motor (62-3) is fixedly arranged in the bottom of mounting bracket (61), and the drive end of motor (62-3) is fixedly connected with one end of screw rod (62-2), slide (62-4) is fixedly arranged in the bottom of mounting bracket (61), and slide (62-4) is located below screw rod (62-2), sliding block (62-5) is threadedly connected between screw rod (62-2), and the bottom of sliding block (62-5) is slidably connected with slide (62-4), bearing plate (62-6) is fixedly arranged on the top of sliding block (62-5), a plurality of monitoring units (63) are fixedly arranged on the top of bearing plate (62-6).

3. The die cutting device for corrugated box production according to claim 2, characterized in that, The monitoring unit (63) comprises a supporting cylinder (63-1), a spring (63-2), a moving plate (63-3), a connecting block (63-4), a contact head (63-5) and a force sensor (63-6), the supporting cylinder (63-1) is fixedly arranged on the top of the bearing plate (62-6), a circular through hole is formed in the top of the supporting cylinder (63-1), the spring (63-2) is located in the supporting cylinder (63-1), the bottom end of the spring (63-2) is fixedly connected with the inner bottom of the supporting cylinder (63-1), the moving plate (63-3) is fixedly arranged on the top of the spring (63-2), the moving plate (63-3) is slidably connected with the inner side wall of the supporting cylinder (63-1), the connecting block (63-4) is fixedly arranged on the top of the moving plate (63-3), the contact head (63-5) is fixedly arranged on the top of the connecting block (63-4), and the force sensor (63-6) is fixedly arranged on the inner bottom of the supporting cylinder (63-1) and located in the spring (63-2).

4. The die cutting device for corrugated box production according to claim 3, characterized in that, Each monitoring unit (63) is spaced apart from the previous monitoring unit (63).

5. The die cutting device for corrugated box production of claim 2, wherein, The screw rod (62-2) and the supporting plate (62-1) are connected through a bearing, the inner ring of the bearing is in interference fit with the screw rod (62-2), and the outer ring of the bearing is fixedly connected with the supporting plate (62-1).

6. The die cutting device for corrugated box production according to claim 3, characterized in that, The diameter of the moving plate (63-3) is greater than that of the circular through hole in the top of the supporting cylinder (63-1).

7. The die cutting device for corrugated box production of claim 1, wherein, The mounting frame (61) is a concave structure.

8. The die cutting device for corrugated box production of claim 3, wherein, The contact head (63-5) is a rectangular structure.

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