Pull bag transverse sealing mechanism
By designing a bag-pulling and horizontal sealing mechanism that includes a front push plate and a rear push plate, and using a cylinder drive and a guide plate slide to cushion the falling of the packaging bag, the problem of the packaging bag being bumped after sealing is solved, and the smooth sliding of the packaging bag and protection of the contents are achieved.
Patent Information
- Application Number
- CN202422189506.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing bag sealing mechanism causes the bag to fall off naturally after the packaging film is sealed horizontally, which may result in bumps, damage to the packaging film, or leakage of contents.
Design a bag horizontal sealing mechanism that includes a front push plate and a rear push plate. The front push plate and the rear push plate are driven by a cylinder. Combined with a guide plate slide and a heat sealer, the seal is cut open by a cutter and slides down along the guide plate slide to buffer the impact of gravity.
It effectively reduces the impact of the packaging bag during the drop process, prevents bumps and damage, and ensures the safety of the items inside the packaging bag.
Smart Images

Figure CN223686998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging equipment technology, specifically to a bag-pulling and horizontal sealing mechanism. Background Technology
[0002] The pull-bag horizontal sealing mechanism is a key component of packaging equipment, primarily used to seal the lateral edges of packaging bags. The design and function of this mechanism are crucial for improving packaging efficiency and product quality. Its main function is to seal the lateral edges of the packaging bag, ensuring the airtightness of the packaging material and preventing leakage or contamination of the contents. This mechanism is typically used in conjunction with a longitudinal sealing mechanism, which seals the longitudinal edges of the packaging bag, thus completing the overall sealing of the bag. With technological advancements, new intelligent devices such as digital control components and power load control are widely used in packaging machinery, making the pull-bag horizontal sealing mechanism more independent, flexible, and accurate in operation, improving efficiency, and offering good compatibility.
[0003] However, in existing technologies, the bag-sealing mechanism allows the bag to fall naturally after sealing the packaging film horizontally. Under the influence of gravity, the bag may be subjected to a large force and bump, which may damage the contents or break the packaging film, causing the contents to leak.
[0004] Based on the above problems, there is an urgent need for a horizontal sealing mechanism that can mitigate the impact of gravity when the sealed packaging bag falls. Utility Model Content
[0005] In view of the fact that existing bag-sealing mechanisms allow the bag to fall naturally after sealing the packaging film horizontally, which may cause the bag to be subjected to a large force and bump under the action of gravity, this application provides a bag-sealing mechanism to solve the above problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This application discloses a bag sealing mechanism, including a front push plate and a rear push plate. The front push plate and the rear push plate are driven by a cylinder. A heat sealer is provided between the front push plate and the rear push plate. A guide plate slide is provided directly below the front push plate and the rear push plate. The guide plate slide is fixed by a bag guide fixing plate. The guide plate slide is set in an arc shape that is inclined outward. An inlet is provided above the guide plate slide. A limit baffle is provided on the front side of the inlet.
[0008] Optionally, the inner heat sealer is equipped with a cutter mounted on a cutter mounting shaft, the cutter is driven by a cylinder, and the cutter is configured in multiple rows.
[0009] Optionally, a right-angle heating tube is arranged near the cutter.
[0010] Optionally, motor seats are arranged on both sides of the front push plate.
[0011] Optionally, a transverse sealing side plate is arranged on the front side of the motor seat.
[0012] Optionally, a rear mounting plate is arranged on the front side of the rear push plate, a sliding groove and a sliding rail are arranged on the front side of the rear mounting plate, and one side of the sliding groove is fixedly connected with the transverse sealing side plate.
[0013] Optionally, a wire passing cover plate is arranged above the transverse sealing side plate.
[0014] Technical effects:
[0015] In the above scheme, after the transverse sealing of the package is completed, the cutter cuts the bag in the middle of the transverse sealing, and finally the bag slides along the sliding groove on the guide plate sliding plate, which can buffer the impact force of gravity on the packaging bag and the goods in the packaging bag. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0017] Fig. 1 It is a schematic view of the bag pulling and transverse sealing mechanism structure of the present application.
[0018] Fig. 2 It is a top view of the bag pulling and transverse sealing mechanism of the present application.
[0019] In the drawings:
[0020] 1, front push plate; 2, rear push plate; 3, air cylinder; 4, heat sealer; 5, guide plate sliding plate; 6, bag guiding and fixing plate; 7, inlet; 8, baffle; 9, cutter; 10, heating tube; 11, motor seat; 12, transverse sealing side plate; 13, rear mounting plate; 14, sliding groove; 15, sliding rail; 16, wire passing cover plate. DETAILED DESCRIPTION
[0021] In the following description, specific details are presented in order to illustrate, but not to limit, the embodiments of the present application, such as specific system structures, techniques, etc., so that the embodiments of the present application can be thoroughly understood. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits and methods are omitted, so as not to obscure the description of the present application with unnecessary details.
[0022] It should be understood that the term "includes" when used in the specification and the appended claims indicates the presence of the described features, integers, steps, operations, elements, and / or components but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.
[0023] Referring to Figs. 1-2 , the existing bag pulling and transverse sealing mechanism directly allows the bag to naturally drop after completing the transverse sealing of the packaging film, which may cause the bag to be subjected to a large force and collide, resulting in damage to the internal articles or leakage of the internal articles due to damage to the packaging film. Based on the above problems, the present application discloses a bag pulling and transverse sealing mechanism, which comprises a front push plate 1 and a rear push plate 2, the front push plate 1 and the rear push plate 2 are driven by a gas cylinder 3, a heat sealer 4 is arranged between the front push plate 1 and the rear push plate 2, a guide plate sliding plate 5 is arranged directly below the front push plate 1 and the rear push plate 2, the guide plate sliding plate 5 is fixed by a bag guiding fixed plate 6, the guide plate sliding plate 5 is arranged in the shape of an inclined arc outward, an inlet 7 is arranged above the guide plate sliding plate 5, and a limiting baffle 8 is arranged on the front side of the inlet 7.
[0024] The cutting knife 9 is arranged on the heat sealer 4 on the inner side through a cutting knife 9 mounting shaft, the cutting knife 9 is driven by the gas cylinder 3, and the cutting knife 9 is arranged in multiple rows. A right-angle heating tube 10 is arranged near the cutting knife 9. A motor base 11 is arranged on both sides of the front push plate 1. A transverse sealing side plate 12 is arranged on the front side of the motor base 11. A rear mounting plate 13 is arranged on the front side of the rear push plate 2, a sliding groove 14 and a sliding rail 15 are arranged on the front side of the rear mounting plate 13, and one side of the sliding groove 14 is fixedly connected with the transverse sealing side plate 12. A wire passing cover plate 16 is arranged above the transverse sealing side plate.
[0025] The transverse sealing mechanism is provided with four gas cylinders 3, two of which are fixed together, the gas cylinder 3 is pushed outward, so that the front push plate 1 and the rear push plate 2 move towards a center, each of the front push plate 1 and the rear push plate 2 is provided with a heat sealer 4, the heat sealers 4 are closed, so that the transverse sealing of the packaging film is closed. The bag is sealed by three edges, the cutting knife 9 is arranged on the heat sealer 4 on the inner side, the gas cylinder 3 is powered, the cutting knife 9 is arranged on the pulling rod, the pulling rod is pulled, so that the bag is cut in the middle of the transverse sealing, when the transverse sealing gas cylinder 3 is retracted, the transverse sealing heat sealer 4 is opened, the cut bag naturally drops downward, the guide plate sliding plate 5 is a long arc guide rail, so that the bag slides out stably. The power of the whole transverse sealing is driven by the motor, then the reducer drives the curved wrench to rotate, so that the whole transverse sealing moves up and down to pull the film.
[0026] In the above embodiments, the device elements are conventional device elements unless otherwise specified, and the connection modes and control modes are conventional connection modes and control modes unless otherwise specified.
[0027] The utility model has been explained in detail above in combination with the embodiment, but the skilled in the art can understand that each concrete parameter in the above embodiment can be changed to form multiple specific embodiments without departing from the purpose of the utility model, which are all within the common variation range of the utility model and will not be described one by one here.
Claims
1. A horizontal sealing mechanism for a pull-bag, characterized in that, It includes a front push plate (1) and a rear push plate (2), which are driven by a cylinder (3). A heat sealer (4) is provided between the front push plate (1) and the rear push plate (2). A guide plate slide (5) is provided directly below the front push plate (1) and the rear push plate (2). The guide plate slide (5) is fixed by a guide bag fixing plate (6). The guide plate slide (5) is set in an arc shape that is inclined outward. An inlet (7) is provided above the guide plate slide (5). A limit baffle (8) is provided on the front side of the inlet (7).
2. The bag sealing mechanism according to claim 1, characterized in that, The heat sealer (4) on the inner side is equipped with a cutter (9) mounted on a cutting shaft. The cutter (9) is driven by a cylinder (3) and the cutter (9) is arranged in multiple rows.
3. The bag sealing mechanism according to claim 2, characterized in that, A right-angle heating element (10) is provided near the cutter (9).
4. The bag sealing mechanism according to claim 1, characterized in that, Motor mounts (11) are provided on both sides of the front push plate (1).
5. A bag sealing mechanism according to claim 4, characterized in that, A horizontal sealing side plate (12) is provided on the front side of the motor base (11).
6. The bag sealing mechanism according to claim 5, characterized in that, The rear push plate (2) is provided with a rear mounting plate (13) on its front side. The rear mounting plate (13) is provided with a slide groove (14) and a slide rail (15) on its front side. One side of the slide groove (14) is fixedly connected to the horizontal sealing side plate (12).
7. A bag sealing mechanism according to claim 5, characterized in that, A wire-passing cover plate (16) is provided above the horizontal sealing side plate.