Plastic package heat sealing equipment

Abstract

The utility model relates to the technical field of plastic bag packaging, and discloses plastic package heat sealing equipment, symmetrically distributed extension frames are fixedly installed at the top of a base frame, a plurality of roll shafts are rotatably connected to the inner sides of the extension frames, the tops of the roll shafts are fixedly connected with the output end of a servo motor, and the servo motor is fixedly connected with the base frame. The outer side of the roller shaft is sleeved with a chain belt, and an air bag ring is fixedly installed on the outer side of the chain belt. The lower part of the plastic bag is extruded by the air bag ring synchronously rotating on the two sides, so that air in the plastic bag is reduced; then the guide wheel can extrude and pull the upper part of the plastic bag, some air is discharged from the plastic bag again, the upper part of the plastic bag can be extruded to be flat and vertical, the two heat-sealing cutter heads melt and adhere the pulled plastic bag opening, it is guaranteed that the bag opening is not prone to leakage, and in the process, extrusion and discharge of the plastic bag are achieved; therefore, the process flow is reduced, and the sealing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic bag packaging technical field, concretely is a plastic packaging heat sealing equipment. BACKGROUND

[0002] Plastic bags are used for packing food or articles, and are widely used due to the advantages of extremely light weight, large capacity and convenient storage.

[0003] Plastic bags are also divided into flexible, semi-hard and hard types. Flexible plastic bags include household garbage bags, supermarket shopping bags and cling film. Hard plastic bags include plastic handbags and transparent plastic file bags. Semi-hard plastic bags include nut packaging bags and pre-prepared food packaging bags. For example, semi-hard plastic bags have a certain amount of air after sealing. Too much air can cause the food in the plastic bag to become moldy, so a certain amount of time is needed to exhaust the air and reseal the bag, which is inefficient. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] To overcome the shortcomings of the prior art, the utility model provides a plastic packaging heat sealing equipment, which has the advantage of discharging air from the plastic bag and solves the above problems.

[0006] (II) Technical solution

[0007] To achieve the above purpose of discharging air from the plastic bag, the utility model provides the following technical scheme: a plastic packaging heat sealing equipment, comprising a base frame, a belt conveyor fixedly installed on the top of the base frame, a pair of extension frames fixedly installed on the top of the base frame, a plurality of roller shafts rotatably connected to the inner side of the extension frame, a servo motor output fixedly connected to the top of the roller shaft, a chain belt sleeved on the outer side of the roller shaft, and an air bag ring fixedly installed on the outer side of the chain belt. The roller shaft and the chain belt are rotated by the servo motor, and then the air bag ring also rotates. An L-shaped bracket is fixedly installed on the top of the base frame, a sliding groove is formed in the surface of the L-shaped bracket, a connecting block one is fixedly installed on both sides of the end of the L-shaped bracket, an installation seat is slidably installed in the sliding groove through a sliding rod, a connecting block two corresponding to the connecting block one is fixedly installed on the bottom of the installation seat, a spring is fixedly installed between the connecting block one and the connecting block two, a heat sealing cutter head is rotatably installed in the installation seat, and a wire is fixedly connected to the core shaft of the heat sealing cutter head through a rotating seat. The wire is connected to an external power source to ensure that the heat sealing cutter head can heat and melt the plastic bag.

[0008] Preferably, the side of the L-shaped support is embedded with a threaded sleeve, the inside of the threaded sleeve is threadedly connected with a screw rod, one end of the screw rod is fixedly installed with a hand wheel, the other end of the screw rod is rotatably installed with a push disc, and the push disc pushes the side of the mounting base.

[0009] Preferably, the top of the extension frame and on both sides of the mounting base are fixedly installed with vertical rods, the side of the vertical rod is fixedly installed with a wheel seat, a plurality of guide wheels are rotatably installed in the inside of the wheel seat, and the shaft of the guide wheel is fixedly connected with the output end of the driving motor. The rotating guide wheel not only extrudes the plastic bag to exhaust air, but also arranges the upper part of the plastic bag to be flat.

[0010] Preferably, the top of the base frame and on both sides of the belt conveyor are fixedly installed with L-shaped columns, the other end of the L-shaped column is fixedly installed with a sliding rod, the outer side of the sliding rod is slidably installed with a damping sliding sleeve, and the side of the damping sliding sleeve is fixedly installed with a limiting plate. The plastic bag is conveyed to between the two limiting plates by the belt conveyor, so that the plastic bags are queued one by one, and the plastic bags are facilitated to exhaust air and seal.

[0011] Preferably, the heat sealing cutter disc is located between the upper and lower guide wheels, and the wheel seat and the guide wheels are symmetrically distributed about the horizontal center line of the heat sealing cutter disc. The rotating guide wheel not only extrudes the plastic bag to exhaust air, but also arranges the upper part of the plastic bag to be flat, facilitating the subsequent sealing.

[0012] Preferably, the air bag ring is located on the side of the limiting plate, and the air bag ring is symmetrically distributed on both sides. The air bag ring is inflatable, and can be pre-inflated according to the amount of air discharged from the packaging bag, so as to ensure that the air bag ring is inflated to extrude the air discharged from the plastic bag. At the same time, the air bag ring is flexible, and when contacting the object, the air bag ring will deform to the shape of the object, so as to ensure that the object in the plastic bag will not be crushed.

[0013] Preferably, the distance between the left and right wheel seats is greater than the width of the mounting base, and the distance between the upper and lower wheel seats is greater than the thickness of the heat sealing cutter disc. The two heat sealing cutter discs are close to each other, so as to ensure that the plastic bag sealing will not leak.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the plastic packaging heat sealing equipment has the following beneficial effects:

[0016] The plastic packaging heat sealing equipment, the plastic bag is driven to advance by the belt conveyor, the lower part of the plastic bag is extruded by the air bag ring rotating on both sides synchronously, so that the air in the plastic bag is reduced; then the guide wheel can extrude and pull the upper part of the plastic bag, not only the plastic bag discharges some air again, but also the upper part of the plastic bag is extruded flat and vertical, and the guide wheel also pulls the upper part of the plastic bag to pass through the heat sealing cutter disc, the two heat sealing cutter discs melt and bond the pulled plastic bag opening, so that the bag opening is not easily leaked, the plastic bag is extruded and discharged in the process, the purpose of quickly sealing the opening is achieved, the process flow is reduced, and the sealing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

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

[0019] Figure 3 It is a three-dimensional structure schematic view of the utility model Figure 2 It is a side view structure schematic view of the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic view of the utility model Figure 2 It is a sectional structure schematic view of the utility model;

[0021] Figure 5 It is a sectional structure schematic view of the utility model Figure 4 It is a sectional structure schematic view of the utility model;

[0022] Figure 6 It is an exploded structure schematic view of the L-shaped support and the heat sealing cutter disc of the utility model;

[0023] Figure 7 It is a structure schematic view of the L-shaped column and the limiting plate of the utility model.

[0024] In the drawing: 1, base frame; 2, belt conveyor; 3, extension frame; 4, air bag ring; 5, L-shaped support; 6, sliding groove; 7, connecting block one; 8, sliding bar; 9, mounting seat; 10, connecting block two; 11, spring; 12, heat sealing cutter disc; 13, guide wire; 14, threaded sleeve; 15, screw rod; 16, push disc; 17, vertical rod; 18, wheel seat; 19, guide wheel; 20, L-shaped column; 21, sliding rod; 22, damping sliding sleeve; 23, limiting plate. DETAILED DESCRIPTION

[0025] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] Please refer to Figures 1-5 A plastic packaging heat sealing equipment, including base frame 1, the top of base frame 1 is fixedly installed with belt conveyor 2, the top of base frame 1 is fixedly installed with the extension frame 3 of symmetrical distribution, the inside of extension frame 3 is rotatably connected with a plurality of roller shafts, the top of roller shaft is fixedly connected with servo motor output end, the outside of roller shaft is equipped with chain belt, the outside of chain belt is fixedly installed with air bag ring 4, air bag ring 4 is symmetrically distributed with two sides.The servo motor is rotated with the roller shaft and the chain belt, and then the air bag ring 4 is also rotated, and the air bag ring 4 is inflatable, can be pre-inflated according to the air discharge of packaging bag, to ensure that the air bag ring 4 is inflated and extruded to discharge air in the plastic bag, and the air bag ring 4 is also flexible, when contacting the article, the shape profile of the article is deformed, to ensure that the article in the plastic bag is not crushed.

[0027] Please refer to Figures 1-5 The top of base frame 1 is fixedly installed with L-shaped support 5, the surface of L-shaped support 5 is provided with sliding groove 6, and the both sides of the end of L-shaped support 5 are fixedly installed with connecting block one 7.The inside of sliding groove 6 is slidably installed with mounting seat 9 through slide 8, the bottom of mounting seat 9 is fixedly installed with connecting block two 10 corresponding to connecting block one 7, spring 11 is fixedly installed between connecting block one 7 and connecting block two 10, when mounting seat 9 slides forward on the surface of L-shaped support 5, spring 11 is compressed, otherwise mounting seat 9 is released, and spring 11 restores to make mounting seat 9 slide backward.

[0028] Please refer to Figures 2-6 The inside of mounting seat 9 is rotatably installed with heat sealing cutter head 12, the top of the core shaft of heat sealing cutter head 12 is fixedly connected with lead 13 through rotating seat, lead 13 is connected with external power supply, so that heat sealing cutter head 12 can be heated to melt and bond plastic bag.

[0029] Please refer to Figures 2-6The side of the L-shaped support 5 is embedded with a threaded sleeve 14, the inside of the threaded sleeve 14 is threadedly connected with a screw rod 15, one end of the screw rod 15 is fixedly installed with a hand wheel, the other end of the screw rod 15 is rotatably installed with a push disc 16, the push disc 16 pushes against the side of the mounting base 9. By driving the rotation of the screw rod 15, the screw rod 15 moves forward in the threaded sleeve 14, the push disc 16 will push against the side of the mounting base 9, the heat sealing cutter disc 12 on the mounting base 9 will also move forward, the mutual approach of the two heat sealing cutter discs 12 can ensure that the plastic bag sealing will not leak.

[0030] Please refer to Figures 2-6 The top of the extension frame 3 and on both sides of the mounting base 9 are fixedly installed with vertical rods 17, the side of the vertical rod 17 is fixedly installed with a wheel seat 18, a plurality of guide wheels 19 are rotatably installed in the inside of the wheel seat 18, the shaft of the guide wheel 19 is fixedly connected with the output end of the driving motor. The heat sealing cutter disc 12 is located between the upper and lower guide wheels 19, the wheel seat 18 and the guide wheel 19 are symmetrically distributed with the horizontal center line of the heat sealing cutter disc 12 as the axis. The distance between the left and right two wheel seats 18 is greater than the width of the mounting base 9, the distance between the upper and lower two wheel seats 18 is greater than the thickness of the heat sealing cutter disc 12. The rotating guide wheel 19 can not only extrude the plastic bag to exhaust, but also can arrange the upper part of the plastic bag to be flat, which is convenient for the subsequent sealing.

[0031] Please refer to Figure 1 and Figure 7 The top of the base frame 1 and on both sides of the belt conveyor 2 are fixedly installed with L-shaped columns 20, the other end of the L-shaped column 20 is fixedly installed with a sliding rod 21, a damping sliding sleeve 22 is slidingly installed on the outside of the sliding rod 21, a limiting plate 23 is fixedly installed on the side of the damping sliding sleeve 22. The air bag ring 4 is located on the side of the limiting plate 23, the plastic bag is conveyed by the belt conveyor 2 to between the two limiting plates 23, so that the plastic bag can be queued one by one, which is convenient for the subsequent exhaust and sealing of the plastic bag.

[0032] Working principle: in use, the semi-rigid plastic bag containing articles is placed on the belt conveyor 2, the belt conveyor 2 drives the semi-rigid plastic bag to move forward to between the two limiting plates 23 to queue up and wait for processing, after the semi-rigid plastic is captured by the two rotating air bag rings 4, the two air bag rings 4 will extrude and exhaust the semi-rigid plastic, at the same time, the upper part of the semi-rigid plastic enters between the two guide wheels 19, the guide wheels 19 extrude and exhaust the upper part of the semi-rigid plastic, and also arrange it to be flat, then the upper part of the semi-rigid plastic is rolled by the two heat sealing cutter discs 12 after the position is adjusted, the heat sealing cutter disc 12 generates heat after being electrified, which can heat and bond the upper part of the semi-rigid plastic, then the semi-rigid plastic is pulled away by the two guide wheels 19 and the two air bag rings 4 again.

[0033] In summary, the plastic packaging heat sealing equipment, the plastic bag is driven by the belt conveyor 2 to advance, the lower part of the plastic bag is extruded by the air bag ring 4 rotating on both sides synchronously, so that the air in the plastic bag is reduced; then the guide wheel 19 can extrude and pull the upper part of the plastic bag, not only the plastic bag discharges some air again, but also the upper part of the plastic bag is extruded flat and vertical, at the same time, the guide wheel 19 also pulls the upper part of the plastic bag to pass through the heat sealing cutter head 12, the two heat sealing cutter heads 12 melt and bond the pulled plastic bag opening, ensure that the bag opening will not easily leak, realize the extrusion discharge in the plastic bag and the purpose of quick sealing in the process, reduce the process flow, improve the sealing efficiency.

[0034] 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 modifications can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A plastic packaging heat sealing device, comprising a base frame (1), a belt conveyor (2) is fixedly installed on the top of the base frame (1), characterized in that: The top of the base frame (1) is fixedly provided with symmetrically distributed extension frames (3), a plurality of roller shafts are rotatably connected to the inner side of the extension frame (3), the top of the roller shaft is fixedly connected with the output end of a servo motor, the outer side of the roller shaft is sleeved with a chain belt, the outer side of the chain belt is fixedly provided with an air bag ring (4), the top of the base frame (1) is fixedly provided with an L-shaped support (5), a sliding groove (6) is formed in the surface of the L-shaped support (5), a connecting block one (7) is fixedly provided on both sides of the end of the L-shaped support (5), an installation seat (9) is slidably installed in the inner side of the sliding groove (6) through a sliding rod (8), a connecting block two (10) corresponding to the connecting block one (7) is fixedly installed at the bottom of the installation seat (9), a spring (11) is fixedly installed between the connecting block one (7) and the connecting block two (10), and a heat sealing cutter head (12) is rotatably installed in the inner side of the installation seat (9).

2. A plastic packaging heat sealing apparatus according to claim 1, characterized in that: A threaded sleeve (14) is embedded in the side surface of the L-shaped support (5), a screw rod (15) is threadedly connected in the inner side of the threaded sleeve (14), a hand wheel is fixedly installed at one end of the screw rod (15), and a push disc (16) is rotatably installed at the other end of the screw rod (15).

3. A plastic packaging heat sealing apparatus according to claim 2, wherein: A vertical rod (17) is fixedly installed at the top of the extension frame (3) and on both sides of the installation seat (9), a wheel seat (18) is fixedly installed on the side surface of the vertical rod (17), a plurality of guide wheels (19) are rotatably installed in the inner side of the wheel seat (18), and the shaft rod of the guide wheel (19) is fixedly connected with the output end of a driving motor.

4. A plastic packaging heat sealing apparatus according to claim 3, wherein: An L-shaped stand (20) is fixedly installed at the top of the base frame (1) and on both sides of the belt conveyor (2), a sliding rod (21) is fixedly installed at the other end of the L-shaped stand (20), a damping sliding sleeve (22) is slidably installed on the outer side of the sliding rod (21), and a limiting plate (23) is fixedly installed on the side surface of the damping sliding sleeve (22).

5. A plastic packaging heat sealing apparatus according to claim 3, wherein: The heat sealing cutter head (12) is located between the upper and lower guide wheels (19), and the wheel seat (18) and the guide wheel (19) are symmetrically distributed about the horizontal center line of the heat sealing cutter head (12).

6. A plastic packaging heat sealing apparatus according to claim 4, wherein: The air bag ring (4) is located on the side surface of the limiting plate (23), and the air bag ring (4) is symmetrically distributed on both sides.

7. A plastic packaging heat sealing apparatus according to claim 3, wherein: The distance between the left and right wheel seats (18) is greater than the width of the installation seat (9), and the distance between the upper and lower wheel seats (18) is greater than the thickness of the heat sealing cutter head (12).

8. A plastic packaging heat sealing apparatus according to claim 1, wherein: The core shaft of the heat sealing cutter head (12) is fixedly connected with a wire (13) through a rotating seat, and the wire (13) is connected with an external power supply.

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