Plastic package sealing device

Abstract

The plastic package sealing device comprises a workbench, a pneumatic cylinder is vertically arranged on the workbench, the output end of the pneumatic cylinder is fixedly connected with a hot pressing plate, the side face of the hot pressing plate is connected with a connecting rod in a rotating mode, the connecting rod is arranged in an inclined mode, and a rolling piece is arranged at the bottom end of the connecting rod. The connecting rod abuts against the workbench and tends to horizontally extend to push the rolling piece to flatten the materials, the plastic packaging bag is rapidly and conveniently flattened, it is guaranteed that the plastic packaging bag is packaged completely, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to food packaging technical field, concretely is a plastic packaging sealing device. BACKGROUND

[0002] The plastic bag sealing machine is a sealing machine for plastic bags in the pharmaceutical, pesticide, food, daily chemical, lubricating oil and other industries, and can seal plastic films (PE, PP, etc.) of various materials, and has the advantages of firm sealing, high efficiency, simple and compact structure, small size, beautiful appearance, advanced technology and low power consumption.

[0003] The sealing device for food packaging disclosed in the prior Chinese patent publication No. CN217575870U includes a workbench and a hot pressing plate. A cavity is formed in the workbench. Two threaded rods are rotatably installed in the cavity. A movable plate is threadedly installed on the threaded rods. A through hole is formed in the movable plate. Two guide grooves are formed in the inner wall of the cavity. A movable rod is installed in the guide grooves and movably connected with the inner wall of the through hole. Two support rods are fixedly installed on the movable rod. A compression roller is rotatably installed on the two support rods. When the movable plate moves, the movable rod moves in the guide groove, so that the movable rod moves downward and to the right at the same time. The compression roller can flatten the packaging bag, avoid wrinkles, improve the sealing quality, and seal the packaging bag with the hot pressing plate. The sealing effect is good.

[0004] However, the device uses multiple sets of threaded rods and other connecting parts to drive the compression roller to move downward and to the right at the same time to flatten the packaging bag. The structure is complicated, the manufacturing cost is high, and the packaging bag needs to be flattened before the hot pressing plate is pressed to seal. The operation cannot be synchronized, and the operation is inconvenient. Therefore, a plastic packaging sealing device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a plastic packaging sealing device, which has the advantages of quickly flattening the plastic packaging bag.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a plastic packaging sealing device, including a workbench, a pneumatic cylinder is vertically arranged on the workbench, a hot pressing plate is fixedly connected to the output end of the pneumatic cylinder, characterized in that: a connecting rod is rotatably connected to the side surface of the hot pressing plate, and the connecting rod is inclinedly arranged, and a rolling element is arranged at the bottom end of the connecting rod, so that when the hot pressing plate is pressed downward, the connecting rod is in contact with the workbench and tends to be horizontally extended to push the rolling element to flatten the material.

[0007] Further, the length of the connecting rod is longer than the length of the hot pressing plate.

[0008] Further, the heat pressing plate side extends outwardly with a support part, the support part abuts against the connecting rod, so that the connecting rod is inclined.

[0009] Further, the rolling part is in a cylindrical shape.

[0010] Further, the cylindrical rolling part is rotationally connected with the connecting rod.

[0011] Further, the heat pressing plate side extends with a receiving plate, the receiving plate is slidingly connected with a slide column penetrating through the receiving plate, the slide column is provided with an outer convex at both upper and lower ends in a radial direction, the outer convex at the upper end of the slide column abuts against the upper part of the receiving plate, a spring is arranged between the receiving plate and the outer convex at the lower end of the slide column, the spring is sleeved outside the slide column, so that the outer convex at the lower end of the slide column is pushed upward to press the spring when the connecting rod moves upward.

[0012] Compared with the prior art, the technical scheme has the following beneficial effects:

[0013] The plastic packaging sealing device is characterized in that the heat pressing plate side is rotationally connected with the inclined connecting rod, so that the bottom end of the connecting rod abuts against the workbench when the heat pressing plate presses the plastic packaging, and the connecting rod tends to be horizontally extended, thereby pushing the rolling part to quickly and conveniently smooth the plastic packaging bag on the workbench, so that the plastic packaging bag is kept flat before being sealed by the heat pressing, the operation is convenient, the structure is simple, and the manufacturing cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view when the utility model is not working;

[0015] Figure 2 It is Figure 1 It is an enlarged view of A in the middle;

[0016] Figure 3 It is a structure schematic view when the utility model is working;

[0017] Figure 4 It is Figure 3 It is an enlarged view of B in the middle.

[0018] In the drawing: 1, workbench; 2, heat pressing plate; 3, connecting rod; 4, rolling part; 5, support part; 6, receiving plate; 7, slide column; 8, spring; 9, pneumatic cylinder. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0020] Please refer to Figures 1-4The plastic packaging sealing device in the application comprises a workbench 1, a pneumatic cylinder 9 vertically arranged on the workbench 1, a hot pressing plate 2 fixedly connected to the output end of the pneumatic cylinder 9, a connecting rod 3 rotatably connected to the side surface of the hot pressing plate 2, and an abrading piece 4 arranged at the bottom end of the connecting rod 3.

[0021] When the device is used to heat-press seal the plastic packaging bag on the workbench 1, the pneumatic cylinder 9 is started to drive the hot pressing plate 2 to move downwards, the bottom end of the connecting rod 3 is preferentially abutted against the workbench 1 to extend horizontally and drive the abrading piece 4 at the bottom end to abut against the plastic packaging bag and then move laterally, so that the plastic packaging bag can be quickly smoothed, and then the hot pressing plate 2 is used to heat-press seal the plastic packaging bag, thereby preventing the plastic packaging bag from being wrinkled during heat-press sealing, and the operation is simple and the manufacturing cost is low.

[0022] Since the connecting rod 3 extends horizontally and cannot hinder the hot pressing plate 2 from heat-press sealing the plastic packaging bag, the length of the connecting rod 3 is longer than the length of the hot pressing plate 2, so that the abrading piece 4 is located outside the hot pressing plate 2 after smoothing the plastic packaging bag.

[0023] The hot pressing plate 2 extends outwardly at the side surface to form a supporting portion 5, which is arranged at the vertically lower portion of the connecting end of the connecting rod 3 and the hot pressing plate 2, and the supporting portion 5 is abutted against the connecting rod 3 to make the connecting rod 3 in an inclined state.

[0024] The abrading piece 4 is in a cylindrical shape, the cylindrical abrading piece 4 is in linear contact with the plastic packaging bag, thereby reducing the friction and preventing the plastic packaging bag from being affected by the heat-press sealing.

[0025] Further optimization, the cylindrical abrading piece 4 is rotatably connected with the connecting rod 3, so that the sliding is changed into rolling, thereby further reducing the friction.

[0026] The hot pressing plate 2 extends to form a receiving plate 6 at the side surface, the receiving plate 6 is slidably connected with a slide column 7 penetrating through the receiving plate 6, the slide column 7 is provided with an outward protrusion at the upper and lower ends in the radial direction, the outward protrusion at the upper end of the slide column 7 is abutted against the upper portion of the receiving plate 6, a spring 8 is arranged between the receiving plate 6 and the outward protrusion at the lower end of the slide column 7, the spring 8 is sleeved outside the slide column 7, so that when the connecting rod 3 moves upwards, the outward protrusion at the lower end of the slide column 7 is pushed to press the spring 8 upwards, the spring 8 is compressed to provide a buffer for the hot pressing plate 2, thereby preventing the hot pressing plate 2 from being rigidly contacted with the workbench and reducing the damage of the hot pressing plate 2.

[0027] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A plastic packaging sealing device, comprising a workbench (1), a pneumatic cylinder (9) is vertically arranged on the workbench (1), and a hot press plate (2) is fixedly connected to an output end of the pneumatic cylinder (9), characterized in that: The heat pressing plate (2) is connected with a connecting rod (3) on the side, and the connecting rod (3) is arranged obliquely, and the bottom end of the connecting rod (3) is provided with a rolling part (4), so that when the heat pressing plate (2) is pressed down, the connecting rod (3) is in contact with the workbench and tends to be horizontally extended to push the rolling part (4) to flatten the material.

2. A plastic packaging closure device according to claim 1, characterised in that: The length of the connecting rod (3) is longer than the length of the heat pressing plate (2).

3. A plastic packaging closure device according to claim 1, characterised in that: The heat pressing plate (2) extends outward on the side and is provided with a supporting part (5), the supporting part (5) is in contact with the connecting rod (3), so that the connecting rod (3) is inclined.

4. A plastic packaging closure device according to claim 1, characterised in that: The rolling part (4) is in a cylindrical shape.

5. A plastic packaging closure device according to claim 4, characterised in that: The cylindrical rolling part (4) is rotatably connected with the connecting rod (3).

6. A plastic packaging closure device according to claim 1, wherein: The heat pressing plate (2) extends outward on the side and is provided with a supporting part (5), the supporting part (5) is in contact with the connecting rod (3), so that the connecting rod (3) is inclined. The cylindrical rolling part (4) is rotatably connected with the connecting rod (3). The heat pressing plate (2) extends outward on the side and is provided with a supporting part (5), the supporting part (5) is in contact with the connecting rod (3), so that the connecting rod (3) is inclined.

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