Heat sealing mechanism for plastic packaging
By designing an automated heat-sealing mechanism for plastic packaging, the automatic heat sealing and unpacking of packaging bags is achieved by using a motor-driven roller frame and heat-sealing knife. This solves the problem of manual bag handling in existing technologies, improves heat sealing efficiency, and reduces the risk of burns to workers.
Patent Information
- Application Number
- CN202520617643.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-02
AI Technical Summary
In the current heat-sealing process for plastic packaging bags, the sealed bags need to be removed manually, which increases the workload of workers and the high temperature of the bag opening can easily burn them.
Design a heat-sealing mechanism for plastic packaging that includes a feeding mechanism and a sealing mechanism. The mechanism uses a motor to drive a roller frame to rotate a rubber rod and a heat-sealing knife to achieve automatic heat sealing and unloading. Heat sealing is performed using a heating rod, and continuous sealing is achieved by combining it with a belt conveyor.
It enables automated heat sealing of packaging bags, improves heat sealing efficiency, reduces manual operation, and avoids the risk of workers getting burned.
Smart Images

Figure CN223919755U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to plastic packaging technical field, concretely is a kind of hot sealing mechanism for plastic packaging. BACKGROUND
[0002] Hot-press sealing is to heat the material of sealing place by certain way, make it reach viscous flow state and then pressurize to make it stick, generally use hot-press sealing device or hot-press sealing machine to complete.Hot sealing head is the actuating mechanism of hot-press sealing, according to the structure form of hot sealing head and the different heating methods.
[0003] The utility model discloses a kind of hot sealing mechanisms for plastic packaging bag production with the structure such as processing table.The hot sealing mechanism for plastic packaging bag production, by being set up, bending mechanism and fixed mechanism, the drive motor of operation two sides is rotated with threaded rod, threaded rod drives slider with contact block to move forward, bag mouth is bent to plastic packaging bag, and make the bag mouth of plastic packaging bag extend to placement plate and be located below non-slip pad, operate first electric push rod with non-slip pad and move downward fixedly the bag mouth of the plastic packaging bag bent over, thus, the bag mouth of entire plastic packaging bag is fixed process without manual completion, realize the purpose of being convenient for fixed plastic packaging bag mouth.The application is specific when using, there is a problem: hot-sealed packaging bag needs manual removal, which increases the working intensity of workers, and the bag mouth with high temperature is easy to scald workers. UTILITY MODEL CONTENTS
[0004] The utility model aims at solving one of the technical problems existing in prior art or related art.
[0005] To this end, the technical scheme adopted by the utility model is:
[0006] A kind of hot sealing mechanism for plastic packaging, including feeding mechanism and packaging mechanism, the feeding mechanism includes table frame, belt conveyor embedded in the top of the table frame, packaging mechanism, the packaging mechanism includes two support frames arranged at the rear side of the table frame, roller frame movably connected between two support frames, motor connected between one support frame and roller frame, two rubber rods sleeved outside the roller frame, two connecting pieces mounted at both ends of the rubber rod, hot sealing knife connected between adjacent two connecting pieces, and a plurality of heating rods connected to the top of the hot sealing knife.
[0007] By adopting the above technical scheme, the motor output shaft rotates with the roller frame, the roller frame rotates with the rubber rod, the connecting piece and the hot sealing knife, the hot sealing knife contacts the top of the table while completing the hot sealing of the packaging bag, and then the roller frame continues to rotate, the hot sealing knife is blocked by the table, so the rubber rod will be bent, and then the packaging bag pressed by the hot sealing knife will be dragged down the table, thereby completing automatic material removal, realizing continuous hot sealing and improving the hot sealing efficiency of the packaging bag.
[0008] The utility model discloses in a preferable example can be further configured as: the top of the belt conveyor is flush with the top of the table frame, and the belt conveyor is electrically connected with the external power supply.
[0009] The utility model discloses in a preferable example can be further configured as: the top of the table frame is provided with a slope, and the slope is located between the belt conveyor and the roller frame.
[0010] The utility model discloses in a preferable example can be further configured as: a plurality of heating rods are connected in series on the top of the heat sealing knife, and the heating rods are electrically connected with the external power supply.
[0011] The utility model discloses in a preferable example can be further configured as: a bottom plate is installed at the bottom of the table frame, and the bottom ends of the two support frames are fixedly connected with the top of the bottom plate.
[0012] The utility model discloses in a preferable example can be further configured as: two baffle plates are installed at the top of the table frame, and the belt conveyor is located between the two baffle plates.
[0013] The utility model discloses in a preferable example can be further configured as: a protective shell is installed at the top of the heat sealing knife, and the protective shell is sleeved on the outer side of the plurality of heating rods on the top of the heat sealing knife.
[0014] By adopting the above technical scheme, the utility model has the beneficial effects of:
[0015] 1. In the utility model, the motor output shaft rotates with the roller frame, the roller frame rotates with the rubber rod, the connecting piece and the heat sealing knife, the heat sealing knife contacts the top of the table frame, and the heat sealing of the packaging bag is completed, then the roller frame continues to rotate, the heat sealing knife is resisted by the table frame, the rubber rod is bent, and the packaging bag pressed by the heat sealing knife is dragged down the table frame, thereby completing automatic material removal, realizing continuous heat sealing and improving the heat sealing efficiency of the packaging bag.
[0016] 2. In the utility model, the packaging bag wrapped around the object has a bag opening facing the slope, and then is continuously conveyed by the belt conveyor, thereby providing conditions for continuous packaging of the packaging bag. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the overall structure perspective drawing of the utility model;
[0018] Figure 2 It is the feeding mechanism schematic view of the utility model;
[0019] Figure 3 It is the heat sealing mechanism schematic view of the utility model;
[0020] Figure 4The utility model discloses a support frame, roller frame and motor's connection relation schematic drawing.
[0021] Reference signs:
[0022] 100, feeding mechanism, 110, table frame, 120, belt conveyor,
[0023] 200, packaging mechanism, 210, support frame, 220, roller frame, 230, motor, 240, rubber rod, 250, connecting piece, 260, heat sealing knife, 270, heating rod,
[0024] 300, slope,
[0025] 400, bottom plate,
[0026] 500, baffle,
[0027] 600, protective shell. DETAILED DESCRIPTION
[0028] In order to make the utility model's purpose, technical scheme and advantage more clear and obvious, below combining specific embodiment and referring to attached drawing, the utility model is further detailedly explained.It needs to be explained that the embodiment of the utility model and the feature in the embodiment can be combined mutually in the case of not conflicting.
[0029] It is understood that these descriptions are only exemplary, and not to limit the scope of the utility model.
[0030] Some embodiments of the utility model are described below in combination with the attached drawings to provide a heat sealing mechanism for plastic packaging.
[0031] Embodiment one:
[0032] In combination with Figures 1-4 As shown in the utility model provides a heat sealing mechanism for plastic packaging, including feeding mechanism 100 and packaging mechanism 200, the feeding mechanism 100 includes table frame 110, the belt conveyor 120 embedded in the top of the table frame 110,
[0033] Packaging mechanism 200, the packaging mechanism 200 includes two support frames 210 arranged at the rear side of the table frame 110, the roller frame 220 movably connected between two support frames 210, the motor 230 connected between one support frame 210 and the roller frame 220, two rubber rods 240 sleeved on the outer side of the roller frame 220, two connecting pieces 250 installed at both ends of the rubber rod 240, the heat sealing knife 260 connected between adjacent two connecting pieces 250, and a plurality of heating rods 270 connected with the top of the heat sealing knife 260.
[0034] Further, the top of the belt conveyor 120 is flush with the top of the table frame 110, and the belt conveyor 120 is electrically connected with an external power supply, so that the belt conveyor 120 can continuously convey the packaging bags.
[0035] Further, the plurality of heating rods 270 on the top of the heat sealing knife 260 are connected in series, and the heating rods 270 are electrically connected with an external power supply, so that the heating rods 270 can be conveniently started by an operator.
[0036] Further, the table frame 110 is provided with two baffles 500 on the top, and the belt conveyor 120 is located between the two baffles 500, so that the packaging bags on the belt conveyor 120 are prevented from being conveyed to other positions.
[0037] Further, the table frame 110 is provided with two baffles 500 on the top, and the belt conveyor 120 is located between the two baffles 500, so that the packaging bags on the belt conveyor 120 are prevented from being conveyed to other positions.
[0038] Embodiment two:
[0039] In combination with Figure 2 Fig. 2 shows that, on the basis of the embodiment one, the table frame 110 is provided with a slope surface 300 on the top, and the slope surface 300 is located between the belt conveyor 120 and the roller frame 220, so that the packaging bags dragged by the heat sealing knife 260 can automatically slide to the bottom of the table frame 110.
[0040] Embodiment three:
[0041] In combination with Figure 1 Fig. 3 shows that, in the above-mentioned embodiments, the table frame 110 is provided with a bottom plate 400 on the bottom, and the two support frames 210 are fixedly connected with the top of the bottom plate 400, so that the stability of the overall structure of the device can be improved.
[0042] The working principle and use process of the device are as follows: when the device is put into practical use, the packaging bag wrapped around the object is opened towards the slope surface 300, and then continuously conveyed by the belt conveyor 120, and then connected with an external power supply, so that the plurality of heating rods 270 cooperate with the heat sealing knife 260 to heat and seal the packaging bag, then the motor 230 is started, the output shaft of the motor 230 drives the roller frame 220 to rotate, the roller frame 220 drives the rubber rod 240, the connecting piece 250 and the heat sealing knife 260 to rotate, the heat sealing knife 260 contacts the top of the table frame 110 and completes the heat sealing of the packaging bag, then the roller frame 220 continues to rotate, the heat sealing knife 260 is bent due to the resistance of the table frame 110, and the packaging bag pressed by the heat sealing knife 260 is dragged down the table frame 110, so that the automatic material stripping is completed, the continuous heat sealing is realized, and the heat sealing efficiency of the packaging bag is improved.
[0043] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made therein without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A heat-sealing mechanism for plastic packaging, characterized by, Include: Feeding mechanism (100), the feeding mechanism (100) includes table frame (110), embedded in the top of the table frame (110) belt conveyor (120); Encapsulation mechanism (200), the encapsulation mechanism (200) includes two support frames (210) provided on the rear side of the table frame (110), a roller frame (220) movably connected between the two support frames (210), a motor (230) connected between one support frame (210) and the roller frame (220), two rubber rods (240) sleeved on the outer side of the roller frame (220), two connecting pieces (250) installed on both ends of the rubber rod (240), a heat sealing knife (260) connected between adjacent two connecting pieces (250), and a plurality of heating rods (270) connected with the top of the heat sealing knife (260).
2. A heat sealing mechanism for plastic packaging according to claim 1, characterized in that, The top of the belt conveyor (120) is flush with the top of the table frame (110), and the belt conveyor (120) is electrically connected with an external power supply.
3. The heat sealing mechanism for plastic packaging according to claim 1, wherein The top of the table frame (110) is provided with a slope (300), and the slope (300) is located between the belt conveyor (120) and the roller frame (220).
4. The heat sealing mechanism for plastic packaging according to claim 1, wherein The plurality of heating rods (270) on the top of the heat sealing knife (260) are connected in series, and the heating rods (270) are electrically connected with an external power supply.
5. The heat sealing mechanism for plastic packaging according to claim 1, wherein The bottom of the table frame (110) is provided with a bottom plate (400), and the bottom ends of the two support frames (210) are fixedly connected with the top of the bottom plate (400).
6. A heat sealing mechanism for plastic packaging according to claim 1, wherein The top of the table frame (110) is provided with two baffle plates (500), and the belt conveyor (120) is located between the two baffle plates (500).
7. The heat sealing mechanism for plastic packaging according to claim 1, wherein The top of the heat sealing knife (260) is provided with a protective shell (600), and the protective shell (600) is sleeved on the outer side of the plurality of heating rods (270) on the top of the heat sealing knife (260).
Citation Information
Patent Citations
Heat sealing mechanism for plastic packaging bag production
CN218054262U