Distance detection device of continuous packaging bag cutting machine

By introducing a blade holder and pad design into the continuous packaging bag cutter, combined with cutting and detection components, and using an infrared ranging sensor to monitor the blade position, the problem of whether the blade touches the medicine inside the packaging is solved. This enables real-time and precise control of packaging cutting and rejection of unqualified packaging, ensuring product quality and safety.

CN224146419UActive Publication Date: 2026-04-21CHENGDU PUSH PHARM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU PUSH PHARM CO LTD
Filing Date
2025-05-06
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing continuous packaging bag cutting machines cannot monitor in real time and accurately whether the cutter touches the medicine inside the packaging, which may result in substandard packaging being mixed with qualified products, affecting product quality consistency and safety.

Method used

It adopts a blade holder and pad design, combined with cutting and detection components. It uses an infrared range sensor to monitor in real time whether the cutter cuts into the medicine inside the packaging. Spring buffering reduces the impact of the cutter, ensuring the accuracy and stability of the cutting operation. The processor controls the rejection of unqualified packaging.

Benefits of technology

It enables real-time and precise monitoring of packaging cutting operations, ensuring consistent and safe packaging quality, and improving production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of packaging production, particularly relates to a distance detection device for a continuous packaging bag cutting machine, and aims to solve the problem that the existing device cannot accurately judge whether the packaging cutting operation is qualified or not due to the fact that whether a cutter touches medicines in a package or not in the cutting process or not cannot be accurately monitored in real time. Two fixing columns are symmetrically arranged on the two sides of the bottom of the tool rest in a penetrating and sliding mode, and the same connecting base is fixedly arranged outside the two fixing columns. A cutting-off assembly is arranged on the tool rest and used for breaking and cutting off continuous packaging bags, and a detection assembly is arranged on the connecting base and used for judging whether medicine in the packaging bags is cut off or not. Through the arrangement of the detection assembly, whether the cutter touches the medicine in the package or not when cutting off the packaging bag is accurately monitored in real time, whether the package cutting operation is qualified or not is rapidly judged, the quality consistency of product packaging is guaranteed, and the quality and safety of packaged products are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of packaging production technology, and in particular to a distance detection device for a continuous packaging bag cutting machine. Background Technology

[0002] The continuous packaging bag cutter is a highly efficient and automated piece of equipment designed for modern production lines. It can complete the precise cutting of packaging bags continuously at a stable speed.

[0003] Currently, existing continuous packaging bag cutting machines typically only focus on basic cutting functions and continuous operation efficiency. Although they can complete the cutting operation of packaging bags according to preset parameters, they cannot monitor in real time whether the cutter touches the medicine inside the packaging during the cutting process. This makes it impossible to accurately determine whether the packaging cutting operation is qualified, which may result in unqualified packaging being mixed with qualified products, seriously affecting the quality consistency and safety of product packaging. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that cannot monitor in real time and accurately whether the cutter touches the medicine inside the packaging during the cutting process, thus making it impossible to accurately determine whether the packaging cutting operation is qualified. Therefore, a distance detection device for a continuous packaging bag cutting machine is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The distance detection device for a continuous packaging bag cutting machine includes:

[0007] The tool holder and the pad holder are provided. Two fixed posts are symmetrically and slidably arranged on both sides of the bottom of the tool holder. The same connecting seat is fixedly installed on the outside of the two fixed posts. Springs are sleeved on the outside of the two fixed posts. The two ends of the springs are fixedly connected to the bottom of the tool holder and the top of the connecting seat, respectively. A through groove is opened on the top of the connecting seat.

[0008] The blade holder is equipped with a cutting component for cutting continuous packaging bags, and the connecting seat is equipped with a detection component for determining whether the medicine inside the packaging has been cut.

[0009] In one possible design, the cutting assembly includes two connecting rods symmetrically fixedly disposed at the bottom of the blade holder. The bottom of the two connecting rods is slidably disposed with the same blade holder, which is slidably disposed in the through groove of the connecting seat. A cutting blade is fixedly disposed at the bottom of the blade holder. A spring is sleeved on the outside of each of the two connecting rods. One end of the spring is fixedly connected to the blade holder, and the other end of the spring is fixedly connected to the bottom of the blade holder.

[0010] In one possible design, the detection assembly includes two fixing pins symmetrically fixed on one side of the connecting seat. The two fixing pins are movably fitted with the same L-shaped pressure plate. A horizontal plate is fixedly installed on one side of the pressure plate. An infrared ranging sensor is fixedly installed on one side of the connecting seat. A second spring is fixedly installed at the bottom of the infrared ranging sensor. The other end of the second spring is fixedly installed at the top of the horizontal plate. The bottom of the pressure plate is located next to the cutter.

[0011] In one possible design, mounting brackets are fixedly installed on both sides of the tool holder, and a sliding column is slidably installed through the top of one of the mounting brackets. A fixing seat is fixedly installed at the bottom of the sliding column, and the fixing seat is fixedly installed on one side of the top of the pad.

[0012] In one possible design, turntables are provided at locations far from the mounting brackets and pads. Eccentric shafts are fixedly provided on one side of each of the four turntables, off-center. The four eccentric shafts are fixedly connected to both sides of the two mounting brackets and the pads, respectively. Rotating rods are fixedly provided on one side of each of the four turntables. Synchronous pulleys are fixedly provided on the outside of each of the four rotating rods. The same synchronous belt is sleeved on the outside of two synchronous pulleys located on the same side.

[0013] In one possible design, two pads (one) that cooperate with the fixing posts are symmetrically fixed on both sides of the top of the pad frame, and a pad (two) that cooperates with the cutter is fixedly fixed at the center of the top of the pad frame.

[0014] In this application, when the device is first used, the entire device is first installed in a suitable position using a rotating rod and bearings. At this time, the synchronous pulley and synchronous belt are installed accordingly, and two symmetrical and far apart rotating rods are fixedly connected to the output shafts of two motors (the two motors are of the same model and have the same parameters, so that the power and speed of the two motors are the same). Then, the power supply is connected and the corresponding parameters are set (initialize the infrared ranging sensor, set its initial measurement range and distance threshold, which is used to determine whether the cutter cuts into the medicine inside the packaging), so that all parts of the device enter the standby state.

[0015] The motor is then started. At this time, the continuous packaging bags pass through the external conveying and cutting area. When the continuous packaging bags are conveyed to the appropriate position below the cutter, the output shaft of the motor drives the turntable to rotate through the rotating rod. At the same time, the rotating rod drives the turntable on the same side to rotate through the transmission of the synchronous pulley and synchronous belt. The eccentric shaft on the turntable drives the cutter holder and the pad to reciprocate to move closer and further away. When cutting, the cutter holder and the pad are in a close state. At this time, the fixed column abuts against the pad one. At this time, the fixed column slides into the cutter holder, and the spring three is compressed, thus playing a certain buffering role in the process of cutting the packaging bag. The cutter abuts against the pad two. At this time, the cutter holder slides upward outside the connecting rod, and the spring one is compressed, thus playing a certain protective role for the cutter in the process of cutting the packaging bag (the movement of the cutter holder will not affect the cutting of the packaging bag). At this time, the cutter performs the cutting operation on the continuous packaging bag.

[0016] When the cutter reaches the normal position (i.e., the preset cutting position of the packaging bag, where there is no medicine), the pressure plate will press down under the action of spring two because there is no medicine blocking this position. This keeps a certain distance between the pressure plate and the surface of the packaging bag below the cutter. At this time, the infrared distance sensor measures the distance between the pressure plate and the horizontal plate. If this distance is within the set normal range, it indicates that the cutting operation is qualified. When the cutter cuts the medicine inside the packaging, the medicine will bulge upwards due to its presence, which will prevent the pressure plate from pressing down. This will cause the pressure plate to press on the medicine, thus causing the horizontal plate to change position. At this time, the infrared distance sensor measures that the distance between the pressure plate and the horizontal plate will become shorter. If this distance is less than the set normal range threshold, it indicates that the cutting operation has cut the medicine, which is a defective package.

[0017] The infrared range sensor transmits the measured distance signal to the processor. The processor processes and judges the signal according to the preset distance threshold. When the processor determines that the distance signal is less than the normal range threshold, it determines that the package is unqualified. The processor sends a rejection signal to control the rejection device (such as cylinder, push rod, etc.) at the back end to remove the unqualified package from the continuous packaging bag flow, ensuring that qualified packages continue to be conveyed forward to complete the subsequent packaging process.

[0018] This utility model has the following beneficial effects:

[0019] This invention effectively achieves smooth and efficient cutting of continuous packaging bags by setting up a cutting component, ensuring the accuracy of the cutting position. At the same time, the spring buffer mechanism reduces the impact received by the cutter, improving the stability and reliability of the packaging cutting operation, thereby ensuring production efficiency and product quality.

[0020] This invention utilizes a detection component to monitor in real time and accurately whether the cutter touches the medicine inside the packaging when cutting the packaging bag. It quickly determines whether the packaging cutting operation is qualified and immediately provides feedback to trigger the rejection mechanism, effectively removing unqualified packaging. This ensures the consistency of product packaging quality and guarantees the quality and safety of packaged products. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall main structure of the distance detection device for the continuous packaging bag cutting machine proposed in this utility model;

[0022] Figure 2 This is a schematic side view of the overall structure of the distance detection device for the continuous packaging bag cutting machine proposed in this utility model;

[0023] Figure 3 This is a schematic diagram showing the overall component separation structure of the distance detection device for the continuous packaging bag cutting machine proposed in this utility model;

[0024] Figure 4 This is a bottom view of the overall structure of the distance detection device for the continuous packaging bag cutting machine proposed in this utility model, showing the components separated.

[0025] In the diagram: 1. Tool holder; 2. Pad; 3. Mounting bracket; 4. Fixed column; 5. Connecting seat; 6. Tool holder; 7. Connecting rod; 8. Spring 1; 9. Cutting blade; 10. Fixing pin; 11. Pressure plate; 12. Horizontal plate; 13. Infrared ranging sensor; 14. Spring 2; 15. Spring 3; 16. Pad 1; 17. Pad 2; 18. Sliding column; 19. Fixed seat; 20. Turntable; 21. Eccentric shaft; 22. Rotating rod; 23. Synchronous pulley; 24. Synchronous belt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] Reference Figure 1-4 The detection device includes:

[0029] The two core components, cutter holder 1 and pad holder 2, enable precise cutting of continuous packaging bags and real-time monitoring of whether the drug inside the packaging is touched during the cutting process through the components installed on them.

[0030] Two fixed posts 4 are symmetrically arranged on both sides of the bottom of the tool holder 1. These two fixed posts 4 pass through the tool holder 1 and can slide inside it. The same connecting seat 5 is fixedly installed on the outside of the two fixed posts 4. The top of the connecting seat 5 has a through groove for accommodating the tool holder 6. Springs 3 15 are sleeved on the outside of the two fixed posts 4. One end of the springs 3 15 is fixedly connected to the bottom of the tool holder 1, and the other end of the springs 3 15 is fixedly connected to the top of the connecting seat 5, thereby providing a certain buffer during the cutting process.

[0031] The core components of the cutting assembly include two connecting rods 7 and a blade holder 6. The two connecting rods 7 are symmetrically fixed to the bottom of the blade holder 1, and the bottom ends of the two connecting rods 7 are slidably mounted on the top of the blade holder 6. The blade holder 6 is slidably set in the through groove of the connecting seat 5 through the two connecting rods 7. A cutter 9 is fixed to the bottom of the blade holder 6 for cutting continuous packaging bags. A spring 8 is sleeved on the outside of each of the two connecting rods 7. One end of the spring 8 is fixedly connected to the top of the blade holder 6, and the other end of the spring 8 is fixedly connected to the bottom of the blade holder 1, ensuring that the cutter 9 can act stably and powerfully on the packaging bag during the cutting process, while also providing a certain degree of protection for the cutter 9.

[0032] The detection assembly includes two fixing pins 10 and an L-shaped pressure plate 11. The two fixing pins 10 are symmetrically fixed to one side of the connecting seat 5. The pressure plate 11 is movably sleeved on the outside of the two fixing pins 10. The hole of the pressure plate 11 in the fixing pin 10 is larger than the pin of the fixing pin 10. A horizontal plate 12 is fixedly installed on one side of the pressure plate 11 near the infrared ranging sensor 13 (model: HC-SR501). The horizontal plate 12 is used in conjunction with the infrared ranging sensor 13 to measure distance changes. The infrared ranging sensor 13 is fixedly installed on one side of the connecting seat 5 by bolts. The bottom of the infrared ranging sensor 13 is fixedly connected to the top of the horizontal plate 12 by a spring 14. At the same time, the infrared light head of the infrared ranging sensor 13 is at its bottom, and its light shines vertically on the horizontal plate 12. When the cutter 9 cuts the medicine inside the packaging, the medicine will hinder the downward movement of the pressure plate 11, causing the position of the horizontal plate 12 to change, which in turn causes the distance measured by the infrared ranging sensor 13 to change.

[0033] Both sides of the tool holder 1 are fixed with mounting brackets 3. A sliding column 18 is slidably provided through the top of one of the mounting brackets 3. A fixing seat 19 is fixed at the bottom of the sliding column 18. The fixing seat 19 is fixed to one side of the top of the pad 2 to ensure that the tool holder 1 and the pad 2 maintain a stable relative position during movement.

[0034] Turntables 20 are provided at the locations of the two mounting brackets 3 and the pad bracket 2, and eccentric shafts 21 are fixed at the locations of the four turntables 20 off-center on one side. The two upper eccentric shafts 21 are fixedly connected to the locations of the two mounting brackets 3 on the opposite side, and the two lower eccentric shafts 21 are fixedly connected to the two sides of the pad bracket 2. Thus, the rotation of the turntables 20 drives the knife holder 1 and the pad bracket 2 to reciprocate to move closer and further apart, thereby achieving the cutting operation.

[0035] Each of the four turntables 20 has a rotating rod 22 fixed on one side, and a synchronous pulley 23 is fixed to the outside of each of the four rotating rods 22. The two synchronous pulleys 23 located on the same side are fitted with the same synchronous belt 24 to ensure the synchronous rotation of the turntables 20 on both sides and improve the stability of the cutting operation.

[0036] This application can be used in the field of distance detection device for continuous packaging bag cutting machine, and can also be used in other fields applicable to this application.

[0037] Example 2

[0038] Based on Embodiment 1, Embodiment 2 further includes: a distance detection device for a continuous packaging bag cutting machine, which is applied to the technical field of distance detection devices for continuous packaging bag cutting machines. Two pads 16 that cooperate with the fixed column 4 are symmetrically arranged on both sides of the top of the pad frame 2. A pad 2 17 that cooperates with the cutter 9 is fixed at the center of the top of the pad frame 2. During the cutting process, the fixed column 4 abuts against the pad 16, and the cutter 9 abuts against the pad 2 17, ensuring the accuracy and stability of the cutting operation, while avoiding rigid impact.

[0039] However, as is well known to those skilled in the art, the working principle and wiring method of the infrared ranging sensor 13 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A continuous packaging bag cutting machine distance detection device, characterized by, include: The tool holder (1) and the pad (2) are provided. Two fixed columns (4) are symmetrically and slidably arranged on both sides of the bottom of the tool holder (1). The same connecting seat (5) is fixedly arranged on the outside of the two fixed columns (4). Spring three (15) is sleeved on the outside of the two fixed columns (4). The two ends of the spring three (15) are fixedly connected to the bottom of the tool holder (1) and the top of the connecting seat (5) respectively. A through groove is opened on the top of the connecting seat (5). The blade holder (1) is provided with a cutting component, which is used to cut the continuous packaging bags. The connecting seat (5) is provided with a detection component, which is used to determine whether the medicine inside the packaging has been cut.

2. The continuous package bag cutter distance detection device according to claim 1, characterized by, The cutting assembly includes two connecting rods (7) symmetrically fixedly disposed at the bottom of the blade holder (1). The bottom of the two connecting rods (7) is slidably disposed with the same blade holder (6). The blade holder (6) is slidably disposed in the through groove of the connecting seat (5). A cutter (9) is fixedly disposed at the bottom of the blade holder (6). A spring (8) is sleeved on the outside of each of the two connecting rods (7). One end of the spring (8) is fixedly connected to the blade holder (6), and the other end of the spring (8) is fixedly connected to the bottom of the blade holder (1).

3. The continuous package bag cutter distance detection device of claim 2, wherein, The detection component includes two fixing pins (10) symmetrically fixed on one side of the connecting seat (5). The two fixing pins (10) are movably fitted with the same L-shaped pressure plate (11). A horizontal plate (12) is fixedly installed on one side of the pressure plate (11). An infrared ranging sensor (13) is fixedly installed on one side of the connecting seat (5). A second spring (14) is fixedly installed at the bottom of the infrared ranging sensor. The other end of the second spring (14) is fixedly installed at the top of the horizontal plate (12). The bottom of the pressure plate (11) is located next to the cutter (9).

4. The continuous package bag cutter distance detection device of claim 1, wherein, Mounting brackets (3) are fixedly installed on both sides of the tool holder (1). A sliding column (18) is slidably installed through the top of one of the mounting brackets (3). A fixing seat (19) is fixedly installed at the bottom of the sliding column (18). The fixing seat (19) is fixedly installed on one side of the top of the pad (2).

5. The continuous package bagging machine distance detection apparatus of claim 4, wherein, Turntables (20) are provided at locations far from the mounting brackets (3) and the pad brackets (2). Eccentric shafts (21) are fixedly provided on one side of each of the four turntables (20) at locations off-center. The four eccentric shafts (21) are fixedly connected to the two mounting brackets (3) and the pad brackets (2) respectively. Rotating rods (22) are fixedly provided on one side of each of the four turntables (20). Synchronous pulleys (23) are fixedly provided on the outside of each of the four rotating rods (22). The two synchronous pulleys (23) located on the same side are fitted with the same synchronous belt (24) on their external transmission sleeves.

6. The continuous package bag cutter distance detection device of claim 1, wherein, The top two sides of the pad frame (2) are symmetrically fixed with two pads (16) that cooperate with the fixed column (4), and the top of the pad frame (2) is fixedly fixed with a pad (17) that cooperates with the cutter (9).