Packaging bag sealing device

By introducing a positioning mechanism and a protective cover into the packaging bag sealing device, automatic positioning and safe sealing of the packaging bag opening are achieved, solving the safety hazards caused by manual positioning and improving the safety and reliability of operation.

CN223533813UActive Publication Date: 2025-11-11SANLIAN TRANSMISSION MACHINERY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522071864.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2025-11-11
Estimated Expiration
2035-09-26

AI Technical Summary

Technical Problem

The existing packaging bag sealing device requires manual positioning before operation, which poses a safety hazard.

Method used

A packaging bag sealing device was designed, comprising a positioning mechanism and a protective cover. The device uses a compression spring and a positioning rod to automatically position the opening of the packaging bag, and uses a heating element and a temperature sensor to achieve automatic sealing. The protective cover prevents human contact with the heat sealing strip.

Benefits of technology

This improves the safety of the sealing operation, avoids direct contact between the human body and the heat-sealing strip, and ensures the reliability and safety of the sealing process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223533813U_ABST
    Figure CN223533813U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of sealing equipment, in particular to a packaging bag sealing device which comprises a device body, a controller is arranged on the right side of the device body, a protective cover and a positioning mechanism are arranged on the top of the device body, and an upper hot-pressing strip and a lower hot-pressing strip are arranged in the protective cover. A guide rod and an electric push rod are arranged at the top of the protective cover, and through the arrangement of the packaging bag sealing device, by means of the structural design in the positioning mechanism, under elastic stretching of a compression spring on an anti-disengagement block, the anti-disengagement block applies downward pre-pressure to the positioning rod; and the positioning rod drives the positioning plate to move downwards and make contact with the top of the positioning support, then the purpose of positioning the bag opening of the packaging bag is achieved, follow-up sealing operation is facilitated, and the safety of the device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of sealing equipment technology, specifically a packaging bag sealing device. Background Technology

[0002] Sealing packaging bags is a crucial step in the production, sales, and storage of products. Existing heat-sealing packaging bag sealing devices typically use heated strips to heat and pressurize the bag opening, causing the plastic to fuse together and achieve a seal.

[0003] The current packaging bag sealing device requires manual positioning and straightening of the packaging bag before sealing to ensure that the bag opening is flat between the heat-sealing strips. This method can easily cause the user's hands to come into contact with the heat-sealing strips, thus posing a safety hazard to the user and making subsequent use difficult.

[0004] In summary, this utility model solves the problems in the background art by designing a packaging bag sealing device. Utility Model Content

[0005] The purpose of this invention is to provide a packaging bag sealing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A packaging bag sealing device includes a main body, a controller is provided on the right side of the main body, a protective cover and a positioning mechanism are respectively provided on the top of the main body, an upper heat pressing strip and a lower heat pressing strip are respectively provided inside the protective cover, and a guide rod and an electric push rod are respectively provided on the top of the protective cover.

[0008] The positioning mechanism includes a positioning support, which is fixedly installed on the top surface of the main body of the device. A positioning frame is provided on the top of the positioning support, and a positioning plate is provided below the positioning frame. A positioning rod and a compression spring are respectively provided on the top of the positioning frame, and an anti-detachment block is provided on the top of the positioning rod.

[0009] Furthermore, the positioning frame has a U-shaped structure;

[0010] The positioning frame with the U-shaped structure, as described above, facilitates the placement of the bag opening.

[0011] Furthermore, the compression spring is sleeved on the outer surface of the positioning rod, and the top end of the compression spring is fixed to the bottom of the anti-detachment block;

[0012] Through the above technical solution, the compression spring can apply downward preload to the anti-detachment block, which facilitates the downward movement of the anti-detachment block.

[0013] Furthermore, the positioning rods are equidistantly distributed on the left and right sides of the top surface of the positioning frame, and the bottom ends of the positioning rods fit and move through the top surface of the positioning frame and are in fixed contact with the top of the positioning plate.

[0014] Through the above technical solution, the positioning rod can slide against the inner wall of the positioning frame, which facilitates the positioning rod to drive the positioning plate to move down smoothly.

[0015] Furthermore, heating elements and temperature sensors are embedded in the opposing surfaces of the upper and lower hot pressing strips, and the heating elements and temperature sensors are electrically connected to the controller via wires.

[0016] The above technical solution combines heating elements and temperature sensors to heat-seal the opening of the packaging bag.

[0017] Furthermore, the bottom end of the guide rod fits and penetrates the top surface of the protective cover and is fixedly connected to the top of the upper heat-pressing strip, and the telescopic end of the electric push rod penetrates the top surface of the protective cover and is fixed to the top surface of the upper heat-pressing strip;

[0018] Through the above technical solution, the guide rod can limit the displacement of the upper hot pressing strip, and the electric push rod can drive the upper hot pressing strip and the lower hot pressing strip to press together.

[0019] Furthermore, the protective cover is made of high-temperature resistant material;

[0020] Through the above technical solution, the protective cover can prevent users from coming into contact with the upper and lower heating strips.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] In this utility model, a packaging bag sealing device is provided. By utilizing the structural design of the positioning mechanism, under the elastic tension of the anti-detachment block by the compression spring, the anti-detachment block applies a downward pre-pressure to the positioning rod, causing the positioning rod to move the positioning plate down and contact the top of the positioning support. This achieves the purpose of positioning the bag opening, which is beneficial for subsequent sealing operations and improves the safety of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the main body of the device of this utility model;

[0025] Figure 3 This is a schematic diagram of the positioning mechanism of this utility model;

[0026] Figure 4 For the present utility model Figure 3 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Main body of the device; 2. Controller; 3. Protective cover; 301. Upper heating strip; 302. Lower heating strip; 303. Guide rod; 304. Electric push rod; 305. Heating element; 306. Temperature sensor; 4. Positioning mechanism; 401. Positioning support; 402. Positioning frame; 403. Positioning plate; 404. Positioning rod; 405. Compression spring; 406. Anti-detachment block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0033] A packaging bag sealing device includes a device body 1, a controller 2 is provided on the right side of the device body 1, a protective cover 3 and a positioning mechanism 4 are respectively provided on the top of the device body 1, an upper heat pressing strip 301 and a lower heat pressing strip 302 are respectively provided inside the protective cover 3, and a guide rod 303 and an electric push rod 304 are respectively provided on the top of the protective cover 3.

[0034] Specifically, heating elements 305 and temperature sensors 306 are embedded in the opposing surfaces of the upper hot press bar 301 and the lower hot press bar 302. The heating elements 305 and temperature sensors 306 are electrically connected to the controller 2 through wires.

[0035] In this implementation plan, such as Figure 2 As shown, the heating element 305 can heat the sealing of the packaging bag, and the temperature sensor 306 can measure the temperature of the heating element 305, so that the controller 2 can control the temperature of the heating element 305 to meet the sealing temperature of the packaging bag.

[0036] Specifically, the bottom end of the guide rod 303 is attached to and passes through the top surface of the protective cover 3 and is fixedly connected to the top of the upper heat-pressing strip 301, and the telescopic end of the electric push rod 304 passes through the top surface of the protective cover 3 and is fixed to the top surface of the upper heat-pressing strip 301.

[0037] In this embodiment, the electric actuator 304 is electrically connected to the controller 2 via a wire, such as... Figure 2 As shown, the electric push rod 304 can drive the upper heat pressing strip 301 to move downward, while the guide rod 303 can slide against the inner wall of the protective cover 3, thereby ensuring that the upper heat pressing strip 301 is stably close to the lower heat pressing strip 302, which facilitates the heat pressing of the packaging bag.

[0038] Specifically, the protective cover 3 is made of high-temperature resistant material;

[0039] In this embodiment, the protective cover 3 can cover the upper heating strip 301 and the lower heating strip 302 to prevent burns to the operator.

[0040] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 The positioning mechanism 4 includes a positioning support 401, which is fixedly installed on the top surface of the main body 1 of the device. A positioning frame 402 is provided on the top of the positioning support 401, and a positioning plate 403 is provided below the positioning frame 402. A positioning rod 404 and a compression spring 405 are respectively provided on the top of the positioning frame 402, and an anti-detachment block 406 is provided on the top of the positioning rod 404.

[0041] Specifically, the positioning frame 402 has a U-shaped structure, the compression spring 405 is sleeved on the outer surface of the positioning rod 404, and the top of the compression spring 405 is fixed to the bottom of the anti-detachment block 406. The positioning rod 404 is equidistantly distributed on the left and right sides of the top surface of the positioning frame 402, and the bottom end of the positioning rod 404 fits and moves through the top surface of the positioning frame 402 and is in fixed contact with the top of the positioning plate 403.

[0042] In this implementation plan, such as Figure 3 As shown, the compression spring 405 can apply downward pre-pressure to the positioning rod 404 through the anti-detachment block 406, causing the positioning rod 404 to drive the positioning plate 403 to move down and contact the positioning support 401, thereby achieving the function of sealing and positioning the packaging bag, which facilitates the subsequent sealing operation.

[0043] The working process of this utility model is as follows: When using a packaging bag sealing device, the packaging bag to be sealed is moved so that the sealing opening of the packaging bag passes through the positioning support 401 and the positioning plate 403, and ensures that the sealing opening is above the lower heat-pressing strip 302. At this time, the compression spring 405 can apply pre-pressure to the anti-detachment block 406, causing the anti-detachment block 406 to drive the positioning rod 404 to move down. The positioning rod 404 then drives the positioning plate 403 to move down and press against the surface of the packaging bag, thereby achieving the function of positioning the sealing opening of the packaging bag. Subsequently, the electric push rod 304 moves the upper heat-pressing strip 301 down, so that the upper heat-pressing strip 301 and the lower heat-pressing strip 302 press the sealing opening of the packaging bag together. At the same time, the heating element 305 is activated, and the heating element 305 heats the bag opening to fuse it, thus meeting the sealing requirements of the packaging bag.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging bag sealing device, comprising a device body (1), characterized in that: A controller (2) is provided on the right side of the main body (1) of the device. A protective cover (3) and a positioning mechanism (4) are respectively provided on the top of the main body (1). An upper heat-pressing strip (301) and a lower heat-pressing strip (302) are respectively provided inside the protective cover (3). A guide rod (303) and an electric push rod (304) are respectively provided on the top of the protective cover (3).

2. The packaging bag sealing device according to claim 1, characterized in that: The positioning mechanism (4) includes a positioning support (401), which is fixedly installed on the top surface of the main body (1) of the device. A positioning frame (402) is provided on the top of the positioning support (401), and a positioning plate (403) is provided below the positioning frame (402). A positioning rod (404) and a compression spring (405) are respectively provided on the top of the positioning frame (402), and an anti-detachment block (406) is provided on the top of the positioning rod (404).

3. The packaging bag sealing device according to claim 2, characterized in that: The positioning frame (402) has a U-shaped structure.

4. A packaging bag sealing device according to claim 2, characterized in that: The compression spring (405) is sleeved on the outer surface of the positioning rod (404), and the top of the compression spring (405) is fixed to the bottom of the anti-detachment block (406).

5. A packaging bag sealing device according to claim 2, characterized in that: The positioning rods (404) are equidistantly distributed on the top surface of the positioning frame (402), and the bottom end of the positioning rods (404) fits and moves through the top surface of the positioning frame (402) and is in fixed contact with the top of the positioning plate (403).

6. A packaging bag sealing device according to claim 1, characterized in that: Heating elements (305) and temperature sensors (306) are embedded in the opposing surfaces of the upper heating strip (301) and the lower heating strip (302). The heating elements (305) and temperature sensors (306) are electrically connected to the controller (2) via wires.

7. A packaging bag sealing device according to claim 1, characterized in that: The bottom end of the guide rod (303) is attached to and passes through the top surface of the protective cover (3) and is fixedly connected to the top of the upper heat-pressing strip (301). The telescopic end of the electric push rod (304) passes through the top surface of the protective cover (3) and is fixed to the top surface of the upper heat-pressing strip (301).

8. A packaging bag sealing device according to claim 1, characterized in that: The protective cover (3) is made of high-temperature resistant material.