Follow-up punching device for packaging bag

Abstract

The utility model discloses a packaging bag follow-up punching device which comprises a multi-column machine used for producing packaging bags and further comprises a machine frame body arranged on the discharging side of the multi-column machine and a follow-up punching structure installed in the machine frame body. The follow-up punching structure comprises a punching assembly and a first driving element for driving the punching assembly to conduct punching and further comprises a follow-up assembly for driving the punching assembly and the first driving element to move along with the packaging bag, and a measuring assembly for measuring the moving speed of the packaging bag is further installed on one side of the rack body. The follow-up assembly reads the moving speed of the measuring assembly in real time for follow-up. The synchronous wheel and the encoder are used for measuring the moving speed of the thin film in real time, the synchronous wheel is attached to the thin film and drives the encoder to measure the real-time moving speed of the thin film, the original thin film production mode of the multi-column machine does not need to be changed, punching can be conducted, the production speed is not affected, and meanwhile punching precision is high.

Description

Technical Field

[0001] This utility model belongs to the field of packaging bag production technology, and in particular relates to a packaging bag follow-up punching device. Background Technology

[0002] Film packaging bags, leveraging their material properties and technological advantages, demonstrate multiple values ​​in modern packaging: Made from lightweight and flexible materials such as polyethylene (PE) and polypropylene (BOPP), they possess both impact resistance and cold / heat resistance, enabling them to withstand external impacts during transportation and adapt to harsh environments such as those for frozen foods. Through high-barrier layers such as composite aluminizing and ethylene glycol (EVOH), they effectively isolate oxygen, moisture, and ultraviolet radiation, significantly extending the shelf life of food and pharmaceuticals. Simultaneously, the combination of high-transparency materials (such as PET) and high-precision printing processes allows for both visual product display and enhanced brand appeal through graphic design. In recent years, the application of bio-based films, biodegradable materials, and recyclable single-material structures has significantly reduced environmental burden, aligning with the trend of green packaging. Furthermore, by adjusting the composite structure (such as PET / aluminum foil / PE), properties such as retort resistance and puncture resistance can be customized to meet diverse needs in scenarios such as medical sterilization packaging and protection of precision industrial components, making them an ideal choice that combines functionality, economy, and environmental value.

[0003] However, packaged products may produce slight gas during storage or transportation, causing the bag to swell. Therefore, during production, very fine holes need to be punched in the packaging bag, with a diameter smaller than the product particles. This allows the gas to escape without leakage. However, film packaging bags are produced continuously on a flat surface and have a certain speed. When the punching equipment presses down to punch a hole, the film moves, causing the hole to become an elongated hole. Current equipment uses a lot of pressure to press the film tightly for a moment, pauses the film for a moment, and then punches the hole. This method is complex and affects the production speed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A packaging bag follow-up punching device includes a multi-row machine for producing packaging bags, a frame body disposed on the discharge side of the multi-row machine, and a follow-up punching structure installed in the frame body;

[0006] The follow-up punching structure includes a punching component and a first driving element that drives the punching component to punch holes. It also includes a follow-up component that drives the punching component and the first driving element to move with the packaging bag. A measuring component for measuring the moving speed of the packaging bag is also installed on one side of the frame body. The follow-up component reads the moving speed of the measuring component in real time and follows it.

[0007] Furthermore, the punching assembly includes at least one set of punching plates, the punching plates are provided with a plurality of punching heads, and the punching heads are provided with punching needles.

[0008] Furthermore, the follower component includes a second driving element and a sliding module disposed at the output end of the second driving element. The sliding module is provided with a sliding plate, which is fixedly connected to the first driving element. When the second driving element drives the sliding plate, it can drive the punching component to move.

[0009] Furthermore, the frame body is also provided with a pressing assembly, which includes a guide plate fixedly connected to the frame body and a pressing plate disposed above the guide plate. The guide plate and the pressing plate are provided with a plurality of forced-air grooves, which are used to accommodate the punching needle.

[0010] Furthermore, the measuring component includes a synchronizing wheel and an encoder. When the packaging bag passes by, it drives the synchronizing wheel to rotate, thereby enabling the encoder to detect the speed.

[0011] Furthermore, a counting structure is also installed on the first driving element, which is used to detect the number of times the punching component punches.

[0012] Furthermore, the counting structure is a micro-motion counting switch.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model uses a synchronous wheel and an encoder to measure the film's moving speed in real time. The synchronous wheel is in contact with the film, driving the encoder to measure the film's real-time moving speed. At this time, the follow-up component reads the moving speed. When punching, it drives the punching component to move synchronously according to the speed, so that the punching component and the film form a relative stop. During the follow-up period, the driving element on the punching component drives the punching needle downward to punch a hole. After punching, it returns to its original position to perform the next set of punching. This punching device does not need to change the original film production method of the multi-row machine, does not affect the production speed, and has high punching accuracy.

[0015] 2. During production, this utility model adds a counting structure to the punching component. The punching component increases the count every time it punches a hole. Finally, the production quantity of the packaging bags produced by the multi-row machine is compared with the count in real time. If the quantity is inconsistent, the machine is stopped for inspection to avoid the possibility of missing packaging bags and improve the production yield. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this practical application;

[0018] Figure 2 This is a schematic diagram of the follow-up drilling structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the follower component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the measuring component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the present invention in the drilling state;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Frame body; 2. Follow-up drilling structure; 21. Drilling assembly; 211. Drilling plate;

[0024] 212. Drilling head; 213. Drilling pin; 22. First driving element; 23. Follower assembly; 231. Sliding module; 232. Second driving element; 233. Sliding plate; 24. Measuring assembly; 241. Synchronous pulley; 242. Encoder; 25. Pressing assembly; 251. Guide plate; 252. Pressing plate;

[0025] 253. Exhaust trough; 3. Multi-row machine; 4. Counting structure; 5. Packaging bag. Detailed Implementation

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention. Specific Implementation Example 1:

[0028] like Figures 1 to 5As shown, a packaging bag follow-up punching device includes a multi-row machine 3 for producing packaging bags 5, a frame body 1 disposed on the discharge side of the multi-row machine 3, and a follow-up punching structure 2 installed within the frame body 1. Specifically, the frame body 1 is further provided with a pressing assembly 25, which includes a guide plate 251 fixedly connected to the frame body 1 and a pressing plate 252 disposed above the guide plate 251. The guide plate 251 and the pressing plate 252 are provided with a plurality of forced-out grooves 253, which are used to accommodate the punching needles 213. A counting structure 4 is also installed on the first driving element 22, which is used to detect the number of punches made by the punching assembly 21. Preferably, the counting structure 4 is a micro-motion counting switch.

[0029] The follow-up punching structure 2 includes a punching assembly 21 and a first driving element 22 that drives the punching assembly 21 to punch holes. It also includes a follow-up assembly 23 that drives the punching assembly 21 and the first driving element 22 to move with the packaging bag 5. A measuring assembly 24 for measuring the moving speed of the packaging bag 5 is also installed on one side of the frame body 1. The follow-up assembly 23 reads the moving speed of the measuring assembly 24 in real time and follows the movement. Specifically, the punching assembly 21 includes at least one set of punching plates 211, each with a plurality of punching heads 212, and each punching head 212 containing a punching needle 213. Specifically, the follow-up assembly 23 includes a second driving element 232 and a sliding module 231 disposed at the output end of the second driving element 232. The sliding module 231 contains a sliding plate 233, which is fixedly connected to the first driving element 22. When the second driving element 232 drives the sliding plate 233, it can drive the punching assembly 21 to move. Of course, in order to measure the speed, the measuring component 24 includes a synchronous wheel 241 and an encoder 242. When the packaging bag 5 passes by, it drives the synchronous wheel 241 to rotate, thereby enabling the encoder to detect the speed.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A packaging bag follow-up punching device, comprising a multi-row machine (3) for producing packaging bags (5), characterized in that: It also includes a frame body (1) disposed on the discharge side of the multi-row machine (3) and a follow-up punching structure (2) installed in the frame body (1); The follow-up punching structure (2) includes a punching component (21) and a first driving element (22) that drives the punching component (21) to punch holes. It also includes a follow-up component (23) that drives the punching component (21) and the first driving element (22) to move with the packaging bag (5). A measuring component (24) for measuring the moving speed of the packaging bag (5) is also installed on one side of the frame body (1). The follow-up component (23) reads the moving speed of the measuring component (24) in real time and follows it.

2. The packaging bag follow-up punching device according to claim 1, characterized in that: The punching assembly (21) includes at least one set of punching plates (211), the punching plates (211) are provided with a plurality of punching heads (212), and the punching heads (212) are provided with punching needles (213).

3. The packaging bag follow-up punching device according to claim 1, characterized in that: The follower component (23) includes a second drive element (232) and a sliding module (231) disposed at the output end of the second drive element (232). The sliding module (231) is provided with a sliding plate (233). The sliding plate is fixedly connected to the first drive element (22). When the second drive element (232) drives the sliding plate (233), it can drive the punching component (21) to move.

4. The packaging bag follow-up punching device according to claim 2, characterized in that: The frame body (1) is also provided with a pressing assembly (25). The pressing assembly (25) includes a guide plate (251) fixedly connected to the frame body (1) and a pressing plate (252) disposed above the guide plate (251). The guide plate (251) and the pressing plate (252) are provided with a plurality of forced-air grooves (253). The forced-air grooves (253) are used to accommodate the punching needle (213).

5. The packaging bag follow-up punching device according to claim 1, characterized in that: The measuring component (24) includes a synchronous wheel (241) and an encoder (242). When the packaging bag (5) passes by, it drives the synchronous wheel (241) to rotate, thereby enabling the encoder to detect the speed.

6. The packaging bag follow-up punching device according to claim 1, characterized in that: The first driving element (22) is also equipped with a counting structure (4), which is used to detect the number of times the punching component (21) punches.

7. The packaging bag follow-up punching device according to claim 6, characterized in that: The counting structure (4) is a micro-counting switch.

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