Plastic bag sealing machine for food packaging

By combining hydraulic lifting and a combination of a support rod and spring pressure plate driven by a motor screw, the problem of wrinkles caused by the packaging bag opening during sealing is solved, thus improving the tightness and aesthetics of the seal.

CN223812796UActive Publication Date: 2026-01-20GUANGZHOU AAI TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520534621.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-01-20
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

When sealing food packaging bags, existing sealing machines often fail to fully close the sealed area due to the food already inside, resulting in wrinkles that affect the tightness and appearance of the seal.

Method used

A hydraulic lifting component drives an electric support rod to be inserted into the packaging bag. Through the motor screw component and spring pressure plate component, the packaging bag is gradually clamped to avoid wrinkles and ensure the tightness and aesthetics of the seal.

Benefits of technology

It effectively avoids wrinkles in the packaging bag during the sealing process, improving the tightness and aesthetics of the seal.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223812796U_ABST
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Abstract

The utility model discloses a plastic bag sealing machine for food packaging, which relates to the technical field of packaging equipment, and comprises a workbench, and one side of the upper surface of the workbench is fixedly connected with a support frame; a hydraulic lifting component is arranged on the lower surface of the top of the supporting frame. Two electric supporting rods are symmetrically arranged at the two transverse ends of the bottom of the hydraulic lifting part, and two electric pressing parts are symmetrically arranged at the two longitudinal ends of the bottom of the hydraulic lifting part. Two motor lead screw components are arranged at the ends, away from each other, of the two electric supporting rods correspondingly. Two sliding blocks are symmetrically arranged at the two ends of the two motor lead screw components, and a supporting plate is arranged in the middle of each motor lead screw component. The sides, close to each other, of the bottoms of the two sliding blocks are each provided with two spring pressing plate components. By means of the structure, the packaging bag opening device can open a packaging bag and clamp the packaging bag from inside to outside, wrinkles are avoided, and follow-up sealing machining is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to packing equipment technical field, concretely relates to a food packing is with plastic bag sealing machine. BACKGROUND

[0002] The sealing machine is mainly used for sealing the container after the product is loaded into the packing container, so as to seal the product, keep the product quality and avoid the product loss. The sealing machine is widely used in food, chemical industry, medicine, cosmetics and other industries.

[0003] The existing food packing plastic bag sealing machine is often expanded when performing the sealing operation because the food is loaded in the packing bag. When the pressing mechanism is pressed, the expanded state may cause the pressing part to be not completely closed, and further cause the wrinkle phenomenon, which seriously affects the tightness and appearance of the sealing. Therefore, the food packing plastic bag sealing machine is provided to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a food packing plastic bag sealing machine to solve the problem that the existing food packing plastic bag sealing machine is expanded when performing the sealing operation because the food is loaded in the packing bag. When the pressing mechanism is pressed, the expanded state may cause the pressing part to be not completely closed, and further cause the wrinkle phenomenon, which seriously affects the tightness and appearance of the sealing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A food packing plastic bag sealing machine comprises a workbench, a support frame is fixedly connected to one side of the upper surface of the workbench, a hydraulic lifting part is arranged on the lower surface of the top of the support frame, two electric supporting rods are symmetrically arranged at the bottom of the hydraulic lifting part, two electric pressing parts are symmetrically arranged at the longitudinal ends of the bottom of the hydraulic lifting part, two motor lead screws are arranged at the ends of the electric supporting rods away from each other, two sliders are symmetrically arranged at the ends of the motor lead screws, a supporting plate is arranged in the middle of the motor lead screw, and two spring pressing plate parts are arranged at the bottom of the sliders close to each other.

[0007] The spring pressing plate part comprises a pressing plate, a spring is fixedly connected to one end of the pressing plate close to the electric pressing part, and the pressing plate is below the supporting plate.

[0008] Further, the hydraulic lifting component comprises a hydraulic machine, the bottom of the hydraulic machine is fixedly connected with a lifting plate, and the top of the hydraulic machine is fixedly connected with the lower surface of the top of the supporting frame.

[0009] Further, the two electric supporting rods are respectively fixedly connected with the transverse two ends of the lower surface of the lifting plate, the two electric pressing components comprise two electric pressing rods, the two electric pressing rods are respectively fixedly connected with two hot pressing plates at the ends away from each other, the other ends of the electric pressing rods are fixedly connected with the longitudinal two ends of the lower surface of the lifting plate, and the two hot pressing plates are below the pressing plates.

[0010] Further, the motor screw component comprises a motor fixing seat, one side of the motor fixing seat is fixedly connected with a motor, a reversible screw rod is rotationally connected to the inner side of the motor fixing seat, the motor fixing seat is fixedly connected with the electric supporting rod, and the output end of the motor is fixedly connected with the reversible screw rod.

[0011] Further, the two sliding blocks are respectively threadedly connected with the two ends of the reversible screw rod, and the top of the supporting plate is fixedly connected with the motor fixing seat.

[0012] Further, the pressing plate is rotationally connected with the sliding block at the end away from the electric pressing component, and the spring is fixedly connected with the sliding block.

[0013] Further, the upper surface of the workbench is symmetrically provided with two cylinder fixing components at the two ends, the two cylinder fixing components comprise two cylinders, the output ends of the two cylinders are fixedly connected with an arc-shaped fixing plate at the end close to each other, and the cylinders are fixedly connected with the upper surface of the workbench.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The utility model discloses a packaging bag supporting device, which comprises a workbench, a hydraulic lifting component, two electric supporting rods, two electric pressing components, a motor screw component, two sliding blocks, two pressing plates and two springs.

[0016] 2. The utility model discloses a packaging bag supporting device, which comprises a workbench, a hydraulic lifting component, two electric supporting rods, two electric pressing components, a motor screw component, two sliding blocks, two pressing plates and two springs. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall structure schematic view of the utility model;

[0018] Figure 2 It is a side installation structure schematic view of the utility model;

[0019] Figure 3 The utility model discloses an electric pressing part mounting structure schematic view for the utility model;

[0020] Figure 4 The utility model discloses a spring pressing plate part mounting structure schematic view for the utility model;

[0021] The drawing figure mark: 1, workstation, 2, support frame, 3, cylinder fixed part, 301, cylinder, 302, arc fixed plate, 4, hydraulic lifting part, 401, hydraulic press, 402, lifting plate, 5, electric support rod, 6, electric pressing part, 601, electric pressing rod, 602, hot pressing plate, 7, motor lead screw part, 701, motor fixed seat, 702, motor, 703, positive and negative lead screw, 8, sliding block, 9, support plate, 10, spring pressing plate part, 1001, pressing plate, 1002, spring. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a food packaging plastic bag sealing machine, including workstation 1, workstation 1 upper surface one side is fixedly connected with support frame 2, support frame 2 top lower surface is provided with hydraulic lifting part 4, two electric support rods 5 are symmetrically set in the bottom transverse end of hydraulic lifting part 4, two electric pressing parts 6 are symmetrically set in the bottom longitudinal end of hydraulic lifting part 4, two electric support rods 5 are respectively provided with two motor lead screw parts 7 in the end away from each other, two motor lead screw parts 7 are symmetrically provided with two sliding blocks 8 in both ends, motor lead screw part 7 middle part is provided with support plate 9, two sliding blocks 8 bottom are respectively provided with two spring pressing plate parts 10 in the side close to each other;

[0024] Spring pressing plate part 10 includes pressing plate 1001, and spring 1002 is fixedly connected to the end close to electric pressing part 6 of pressing plate 1001, and pressing plate 1001 is below support plate 9.

[0025] Hydraulic lifting part 4 includes hydraulic press 401, and lifting plate 402 is fixedly connected to the bottom of hydraulic press 401, and the top of hydraulic press 401 is fixedly connected with the lower surface of the top of support frame 2.

[0026] Two electric support rods 5 are respectively fixedly connected with the lower surface of the lifting plate 402 at the transverse two ends, and two electric pressing components 6 include two electric pressing rods 601, the distal ends of which are respectively fixedly connected with two hot pressing plates 602, and the other ends of the electric pressing rods 601 are fixedly connected with the lower surface of the lifting plate 402 at the longitudinal two ends, and the two hot pressing plates 602 are below the pressing plate 1001.

[0027] The motor screw component 7 includes a motor fixing seat 701, one side of which is fixedly connected with a motor 702, and the inner side of the motor fixing seat 701 is rotationally connected with a forward and reverse screw rod 703, and the motor fixing seat 701 is fixedly connected with the electric support rod 5, and the output end of the motor 702 is fixedly connected with the forward and reverse screw rod 703. In this example, the motor screw component 7 can drive the spring pressing plate component 10 at the bottom of the two sliders 8 to clamp the packaging bag.

[0028] The two sliders 8 are respectively threadedly connected with the two ends of the forward and reverse screw rod 703, and the top of the support plate 9 is fixedly connected with the motor fixing seat 701. In this example, the support plate 9 can be used to support the packaging bag containing food from the inside, which is convenient for sealing.

[0029] The pressing plate 1001 is rotationally connected with the slider 8 at the distal end away from the electric pressing component 6, and the spring 1002 is fixedly connected with the slider 8. In this example, the spring 1002 can be used to gradually press the packaging bag from the inside to the outside, so as to avoid wrinkles and facilitate sealing.

[0030] The upper surface of the workbench 1 is symmetrically provided with two cylinder fixing components 3 at the two ends, and the two cylinder fixing components 3 include two cylinders 301, the output ends of which are fixedly connected with arc-shaped fixing plates 302 at the proximal ends, and the cylinders 301 are fixedly connected with the upper surface of the workbench 1. In this example, the arc-shaped fixing plates 302 can be used to fit the shape of the packaging bag and fix the packaging bag, which is convenient for sealing.

[0031] Working principle: the packaging bag containing food is placed on the workbench 1, the two cylinders 301 push the two arc-shaped fixing plates 302 to approach each other to fix the packaging bag, the hydraulic machine 401 drives the lifting plate 402 to move downward, and then drives the two support plates 9 to insert into the packaging bag, the two electric support rods 5 drive the two support plates 9 to support the packaging bag outward, the motor 702 drives the forward and reverse screw rod 703 to rotate, and then drives the two sliders 8 to approach each other, so that the end of the pressing plate 1001 provided with the spring 1002 is in contact with the packaging bag first, the spring 1002 is compressed, the pressing plate 1001 is rotated, and the packaging bag is pressed from the inside to the outside to avoid wrinkles, and the two electric pressing rods 601 drive the two hot pressing plates 602 to approach each other, and then heat press and seal the packaging bag.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machine for sealing the end of a bag of food products, characterized in that: Including workbench (1), the upper surface side of workbench (1) is fixedly connected with support frame (2), the bottom surface of support frame (2) top is provided with hydraulic lifting component (4), the bottom horizontal both ends of hydraulic lifting component (4) are symmetrically provided with two electric support rods (5), the longitudinal both ends of hydraulic lifting component (4) bottom are symmetrically provided with two electric pressing components (6), the end of two electric support rods (5) away from each other is provided with two motor lead screw components (7) respectively, the both ends of two motor lead screw components (7) are symmetrically provided with two sliding blocks (8), the middle part of motor lead screw component (7) is provided with support plate (9), the bottom of two sliding blocks (8) is provided with two spring pressing plate components (10) on the side close to each other respectively; The spring pressing plate component (10) includes a pressing plate (1001), the end of the pressing plate (1001) close to the electric pressing component (6) is fixedly connected with a spring (1002), and the pressing plate (1001) is below the support plate (9).

2. A machine for sealing the end of a plastic bag used for food packaging according to claim 1, characterized in that: The hydraulic lifting component (4) includes a hydraulic machine (401), the bottom of the hydraulic machine (401) is fixedly connected with a lifting plate (402), and the top of the hydraulic machine (401) is fixedly connected with the bottom surface of the support frame (2) top.

3. A machine for sealing the opening of a plastic bag used for food packaging according to claim 2, characterized in that: The bottom surface of the lifting plate (402) is fixedly connected with two electric support rods (5), and the electric pressing components (6) include two electric pressing rods (601), the ends of the two electric pressing rods (601) away from each other are fixedly connected with two hot pressing plates (602), the other end of the electric pressing rod (601) is fixedly connected with the bottom surface of the lifting plate (402) longitudinally, and the two hot pressing plates (602) are below the pressing plate (1001).

4. A machine for sealing the end of a plastic bag used for food packaging according to claim 3, characterized in that: The motor fixed seat (701) is fixedly connected with an electric motor (702) on one side, and the inside of the motor fixed seat (701) is rotatably connected with a reversible lead screw (703), and the motor fixed seat (701) is fixedly connected with the electric support rod (5), and the output end of the electric motor (702) is fixedly connected with the reversible lead screw (703).

5. A machine for sealing the end of a plastic bag used for food packaging according to claim 4, characterized in that: The both ends of the reversible lead screw (703) are threadedly connected with two sliding blocks (8), and the top of the support plate (9) is fixedly connected with the motor fixed seat (701).

6. A machine for sealing the end of a plastic bag used for food packaging according to claim 5, characterized in that: The end of the pressing plate (1001) away from the electric pressing component (6) is rotatably connected with the sliding block (8), and the spring (1002) is fixedly connected with the sliding block (8).

7. The machine according to claim 1, wherein: The upper surface of the workbench (1) is symmetrically provided with two cylinder fixed components (3), and the cylinder fixed components (3) include two cylinders (301), and the output end of the end of the two cylinders (301) close to each other is fixedly connected with an arc-shaped fixed plate (302), and the cylinder (301) is fixedly connected with the upper surface of the workbench (1).