Lunch box sealing strip blanking device

By introducing an inlet, placement box, cylinder, and PLC controller into the punching device for food container sealing strips, the problems of low efficiency and uncontrollable length of existing devices are solved, enabling efficient punching of sealing strips of different lengths and models, and improving the practicality and flexibility of the device.

CN224129875UActive Publication Date: 2026-04-17YANGZHOU ZHIMG ELECTRONICS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU ZHIMG ELECTRONICS CO LTD
Filing Date
2025-05-29
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing lunchbox sealing strip punching devices are inefficient and cannot accurately control the length of the sealing strip, reducing the practicality of the device.

Method used

The design employs an inlet, placement box, cylinder, and PLC controller within the punching box. Precise punching of the sealing strip is achieved through the movement of the moving plate and adjusting plate. The clamping mechanism adapts to different types of sealing strips, improving punching efficiency and flexibility.

Benefits of technology

It enables efficient punching of sealing strips of different lengths and models, improves the practicality and convenience of the device, and meets the flexible adjustment needs of multiple sets of sealing strips.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224129875U_ABST
    Figure CN224129875U_ABST
Patent Text Reader

Abstract

The utility model discloses a lunch box sealing strip blanking device in the technical field of lunch box sealing strip blanking, which comprises a blanking box, a blanking mechanism and a clamping mechanism are arranged in the blanking box, the blanking mechanism comprises an inlet, the inlet is arranged in the blanking box, a placing box can be inserted into the inlet, and the clamping mechanism is arranged in the blanking box. A first air cylinder is fixedly connected to the inner wall of the blanking box, a moving plate is fixedly connected to the output end of the first air cylinder, a second air cylinder is fixedly connected to the bottom end of the moving plate, an adjusting plate is connected to the output end of the bottom of the second air cylinder, a blanking knife is assembled at the bottom end of the adjusting plate, and a PLC is arranged on the outer wall of the blanking box. The PLC is electrically connected with the first air cylinder and the second air cylinder, and the side wall of the containing box is fixedly connected with a limiting plate. According to the meal box sealing strip blanking device, the blanking length can be adjusted when multiple groups of meal box sealing strips are blanked, meal box sealing strips with different required lengths can be conveniently obtained, and the practicability and adjustability of the device are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of punching technology for lunch box sealing strips, and in particular to a punching device for lunch box sealing strips. Background Technology

[0002] The sealing strip for lunch boxes is a key component used to seal lunch boxes, preventing food and soup from leaking out and maintaining the freshness and hygiene of the food. Lunch box sealing strips are usually made of natural rubber, which has good elasticity and sealing performance. Synthetic rubbers such as nitrile rubber are oil-resistant and heat-resistant, while silicone rubber is high-temperature resistant and aging-resistant, and is often used for lunch boxes with high sealing requirements. During the production process, the sealing strip needs to be cut using a punching device.

[0003] In response, Chinese patent application number CN202320897943.3 discloses a sealing strip punching machine, including a base plate, a platform, a cutting blade, and an adjustment assembly. The platform is disposed on one side of the base plate and has multiple references. The cutting blade is disposed on the other side of the base plate, and the adjustment assembly is disposed on the outer side of the cutting blade at the edge of the base plate. The cutting blade is configured to cut the sealing strip when it is placed on the platform and in close contact with the references, and the end of the sealing strip abuts against the adjustment assembly.

[0004] However, existing lunch box sealing strip punching devices typically fix the lunch box sealing strip and then cut it with a punching tool. This method is inefficient when punching lunch box sealing strips and cannot accurately control and adjust the length of the punched lunch box sealing strip, which reduces the practicality of the device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a punching device for sealing strips in lunch boxes.

[0006] The purpose of this utility model is achieved as follows: A punching device for sealing strips of lunch boxes includes: a punching box, wherein a punching mechanism and a clamping mechanism are provided inside the punching box; the punching mechanism includes an inlet, which is opened inside the punching box, and a placement box can be inserted into the inlet; a first cylinder is fixedly connected to the inner wall of the punching box; a moving plate is fixedly connected to the output end of the first cylinder; a second cylinder is fixedly connected to the bottom end of the moving plate; an adjusting plate is connected to the bottom output end of the second cylinder; a punching knife is assembled at the bottom end of the adjusting plate; a PLC controller is provided on the outer wall of the punching box; the PLC controller is electrically connected to the first cylinder and the second cylinder; a limiting plate is fixedly connected to the side wall of the placement box; the limiting plate is slidably disposed inside a limiting groove, which is opened inside the punching box.

[0007] Preferably, a slider is fixedly connected to the side wall of the movable plate, and the slider is slidably disposed inside the slide groove, which is opened inside the punching box.

[0008] Preferably, a telescopic support column is fixedly connected to the bottom end of the movable plate, and the bottom end of the telescopic support column is fixedly connected to the adjusting plate.

[0009] Preferably, a handle is fixedly connected to the outer wall of the placement box.

[0010] Preferably, the clamping mechanism includes a through groove, which is formed inside the placement box. A bottom plate and a top plate are fixedly connected to the inner wall of the placement box. A third cylinder is fixedly connected to the bottom end of the top plate. A pressure plate is fixedly connected to the bottom output end of the third cylinder. A limit component is connected to the bottom of the pressure plate.

[0011] Preferably, an upper pressing seat is fixedly connected to the bottom end of the pressure plate, and a lower pressing seat is fixedly connected to the upper end of the base plate. The sealing strip can be snapped into the upper pressing seat and the lower pressing seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the cooperation of an inlet, a placement box, a first cylinder, a moving plate, a second cylinder, an adjusting plate, a punching knife, and a PLC controller, places multiple sets of lunchbox sealing strips inside the placement box. The placement box is then installed inside the inlet. The PLC controller is activated, starting the first cylinder to drive the moving plate horizontally. The horizontal position of the moving plate is adjusted, and the PLC controller then activates the second cylinder, which drives the adjusting plate downwards. The punching knife then punches the lunchbox sealing strips inside the placement box, allowing for convenient punching of different lengths of lunchbox sealing strips as needed. Multiple sets of sealing strips can be installed inside the placement box simultaneously for punching, improving punching efficiency. This lunchbox sealing strip punching device allows for adjustable punching lengths when punching multiple sets of lunchbox sealing strips, facilitating the production of lunchbox sealing strips of different required lengths, thus improving the device's practicality and adjustability.

[0014] 2. This utility model, through the cooperation of a through groove, a bottom plate, a top plate, a third cylinder, a pressure plate, an upper clamping seat, and a lower clamping seat, allows multiple sets of lunchbox sealing strips of different models and structures to be inserted through the through holes in the placement box. One end of the strip is placed between the pressure plate and the bottom plate. The PLC controller starts the third cylinder, which drives the pressure plate downward, clamping the lunchbox sealing strip using the limiting components at the bottom of the pressure plate and the top of the bottom plate. This facilitates the punching of lunchbox sealing strips of different models and structures. The lunchbox sealing strip punching device can install multiple sets of lunchbox sealing strips of different models and structures inside the placement box and clamp them using the limiting components, making it convenient to punch different models and structures of lunchbox sealing strips and improving the practicality and convenience of the device. Attached Figure Description

[0015] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a frontal three-dimensional schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a frontal three-dimensional cross-sectional view of the overall structure of the punching mechanism of this utility model.

[0018] Figure 3 This is a bottom-view perspective sectional view of the overall structure of the punching mechanism of this utility model.

[0019] Figure 4 This is a frontal perspective three-dimensional schematic diagram of the overall structure of the clamping mechanism of this utility model.

[0020] In the diagram: 111, punching box; 2, punching mechanism; 211, inlet; 212, placement box; 213, first cylinder; 214, moving plate; 215, second cylinder; 216, adjusting plate; 217, punching knife; 218, limiting plate; 219, limiting groove; 220, slider; 221, sliding groove; 222, telescopic support column; 223, handle; 224, PLC controller; 3, clamping mechanism; 311, through groove; 312, bottom plate; 313, top plate; 314, third cylinder; 315, pressure plate; 316, upper clamping seat; 317, lower clamping seat. Detailed Implementation

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

[0022] like Figure 1-4 The present invention provides one embodiment as shown:

[0023] A punching device for sealing strips of lunch boxes. The punching box 111, the first cylinder 213, the second cylinder 215, the PLC controller 224 and the third cylinder 314 used in this application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies known to those skilled in the art.

[0024] Includes: a blanking box 111, a blanking mechanism 2 and a clamping mechanism 3 are provided inside the blanking box 111, the blanking mechanism 2 includes an inlet 211, the inlet 211 is opened inside the blanking box 111, a placement box 212 can be inserted into the inlet 211, a first cylinder 213 is fixedly connected to the inner wall of the blanking box 111, a moving plate 214 is fixedly connected to the output end of the first cylinder 213, a second cylinder 215 is fixedly connected to the bottom end of the moving plate 214, an adjusting plate 216 is connected to the bottom output end of the second cylinder 215, a blanking knife 217 is mounted at the bottom end of the adjusting plate 216, a PLC controller 224 is provided on the outer wall of the blanking box 111, the PLC controller 224 is electrically connected to the first cylinder 213 and the second cylinder 215, a limit plate 218 is fixedly connected to the side wall of the placement box 212, the limit plate 218 is slidably arranged inside the limit groove 219, the limit groove 219 is opened inside the blanking box 111;

[0025] When using this lunchbox sealing strip punching device, multiple sets of lunchbox sealing strips are placed inside the placement box 212. The placement box 212 is then installed inside the inlet 211. The PLC controller 224 is controlled to start the first cylinder 213, which drives the moving plate 214 to move horizontally. The horizontal position of the moving plate 214 is adjusted, and then the PLC controller 224 is used to control the second cylinder 215 to start. The second cylinder 215 drives the adjusting plate 216 to move downward, and the punching blade 217 moves downward to punch the lunchbox sealing strips inside the placement box 212. Different lengths of lunchbox sealing strips can be punched out conveniently according to requirements. Multiple sets of sealing strips can be installed inside the placement box 212 for punching at the same time, improving punching efficiency.

[0026] A slider 220 is fixedly connected to the side wall of the movable plate 214. The slider 220 is slidably disposed inside the slide groove 221, which is located inside the punching box 111.

[0027] When the movable plate 214 moves, the slider 220 slides synchronously inside the slide groove 221, thereby limiting the movable plate 214 and making its sliding more stable.

[0028] The bottom end of the movable plate 214 is fixedly connected to a telescopic support column 222, and the bottom end of the telescopic support column 222 is fixedly connected to the adjusting plate 216.

[0029] During the movement of the second cylinder 215 driving the adjusting plate 216 and the punching cutter 217, the telescopic support column 222 provides synchronous telescopic support to prevent displacement deviation when the adjusting plate 216 and the punching cutter 217 move.

[0030] A handle 223 is fixedly connected to the outer wall of the placement box 212;

[0031] A handle 223 is fixedly connected to the outer wall of the placement box 212. The handle 223 allows the staff to hold the handle 223 and push the placement box 212 into the inlet 211, making it convenient for the placement box 212 to be installed.

[0032] The clamping mechanism 3 includes a through groove 311, which is opened inside the placement box 212. A bottom plate 312 and a top plate 313 are fixedly connected to the inner wall of the placement box 212. A third cylinder 314 is fixedly connected to the bottom end of the top plate 313. A pressure plate 315 is fixedly connected to the bottom output end of the third cylinder 314. A limit component is connected to the bottom of the pressure plate 315.

[0033] When using this lunchbox sealing strip punching device, multiple sets of lunchbox sealing strips of different models and structures are inserted into the through slot 311 opened on the placement box 212, with one end of the strip entering the placement box 212 positioned between the pressure plate 315 and the bottom plate 312. The PLC controller 224 is then activated to start the third cylinder 314. The third cylinder 314 drives the pressure plate 315 to move downward, so that the lunchbox sealing strip is clamped by the limiting components at the bottom end of the pressure plate 315 and the top end of the bottom plate 312. This allows for convenient punching of lunchbox sealing strips of different models and structures.

[0034] The bottom end of the pressure plate 315 is fixedly connected to the upper pressure seat 316, and the top end of the base plate 312 is fixedly connected to the lower pressure seat 317. The sealing strip can be snapped inside the upper pressure seat 316 and the lower pressure seat 317.

[0035] The upper clamping seat 316 and the lower clamping seat 317 have slots inside that are adapted to the sealing strips of different models and structures of lunch boxes, so that the sealing strips of different models and structures of lunch boxes can be adapted and clamped.

[0036] Working principle:

[0037] When using this lunchbox sealing strip punching device, multiple sets of lunchbox sealing strips are placed inside the placement box 212. The placement box 212 is then installed inside the inlet 211. The PLC controller 224 is controlled to start the first cylinder 213, which drives the moving plate 214 to move horizontally. The horizontal position of the moving plate 214 is adjusted, and then the PLC controller 224 is used to control the second cylinder 215 to start. The second cylinder 215 drives the adjusting plate 216 to move downward, and the punching blade 217 moves downward to punch the lunchbox sealing strips inside the placement box 212. Different lengths of lunchbox sealing strips can be punched out conveniently according to requirements. Multiple sets of sealing strips can be installed inside the placement box 212 for punching at the same time, improving punching efficiency.

[0038] When using this lunchbox sealing strip punching device, multiple sets of lunchbox sealing strips of different models and structures are inserted into the through slot 311 opened on the placement box 212, with one end of the strip inside the placement box 212 placed between the pressure plate 315 and the bottom plate 312. The PLC controller 224 is then activated to start the third cylinder 314. The third cylinder 314 drives the pressure plate 315 to move downward, so that the lunchbox sealing strip is clamped by the limiting components at the bottom of the pressure plate 315 and the top of the bottom plate 312. This allows for convenient punching of lunchbox sealing strips of different models and structures. The operation is then complete.

[0039] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A meal box sealing strip blanking device, comprising: A blanking box (111) is characterized in that: a blanking mechanism (2) and a clamping mechanism (3) are provided inside the blanking box (111), the blanking mechanism (2) includes an inlet (211), the inlet (211) is opened inside the blanking box (111), a placement box (212) can be inserted into the inlet (211), a first cylinder (213) is fixedly connected to the inner wall of the blanking box (111), a moving plate (214) is fixedly connected to the output end of the first cylinder (213), and a second cylinder (215) is fixedly connected to the bottom end of the moving plate (214). The bottom output end of the second cylinder (215) is connected to an adjustment plate (216), and the bottom end of the adjustment plate (216) is equipped with a punching knife (217). The outer wall of the punching box (111) is provided with a PLC controller (224). The PLC controller (224) is electrically connected to the first cylinder (213) and the second cylinder (215). The side wall of the placement box (212) is fixedly connected to a limiting plate (218). The limiting plate (218) is slidably disposed inside the limiting groove (219). The limiting groove (219) is opened inside the punching box (111).

2. The seal bar blanking device for a meal box according to claim 1, wherein: The movable plate (214) has a slider (220) fixedly connected to its side wall. The slider (220) is slidably disposed inside the slide groove (221), which is located inside the punching box (111).

3. The seal bar blanking device for a meal box according to claim 1, wherein: The bottom end of the movable plate (214) is fixedly connected to a telescopic support column (222), and the bottom end of the telescopic support column (222) is fixedly connected to the adjustment plate (216).

4. The seal bar blanking device for a meal box according to claim 1, wherein: A handle (223) is fixedly connected to the outer wall of the placement box (212).

5. The punch device for sealing strip of meal box according to claim 1, wherein: The clamping mechanism (3) includes a through groove (311) which is opened inside the placement box (212). The inner wall of the placement box (212) is fixedly connected to a bottom plate (312) and a top plate (313). The bottom end of the top plate (313) is fixedly connected to a third cylinder (314). The bottom output end of the third cylinder (314) is fixedly connected to a pressure plate (315). The bottom of the pressure plate (315) is connected to a limit component.

6. The punching device for a lunchbox sealing strip according to claim 5, characterized in that: The bottom end of the pressure plate (315) is fixedly connected to the upper pressure seat (316), and the top end of the base plate (312) is fixedly connected to the lower pressure seat (317). The sealing strip can be locked inside the upper pressure seat (316) and the lower pressure seat (317).

Citation Information

Patent Citations

  • Sealing strip blanking machine

    CN219705341U