Bag sealing machine

Abstract

The utility model provides a bag sealing machine which is simple in structure and capable of preventing a sealing plate from indenting to cause poor subsequent heat sealing. In order to achieve the purpose, the technical scheme is that the bag sealing machine comprises a flaring assembly, an air exhaust assembly and a sealing assembly, the flaring assembly comprises a cross beam and two vertical plates which are symmetrically arranged on the cross beam in a sliding mode, and the air exhaust assembly comprises an air exhaust pipe arranged in the middle of the cross beam. The exhaust pipe comprises an upper pipe part and a lower pipe part which are integrally formed, the lower pipe part is flat, the two sets of sealing assemblies are symmetrically arranged, each sealing assembly comprises a horizontally-arranged sealing plate, an upper pressing plate and a lower pressing plate, the upper pressing plate and the lower pressing plate are arranged on the upper side and the lower side of the sealing plate in a flush mode, and heating strips are arranged on the sealing plates; the sealing assembly further comprises a mounting frame and a plurality of drivers which are mounted on the mounting frame and used for driving the sealing plate, the upper pressing plate and the lower pressing plate to move in the opposite directions or in the opposite directions. The utility model relates to the technical field of bag packaging.

Description

Technical Field

[0001] This utility model relates to the technical field of bottle cap packaging, and in particular to a bag sealing machine. Background Technology

[0002] Currently, there are some highly mechanized bag sealing machines. For example, patent application number 2018116147574, entitled "A Fully Automatic Bag Sealing Machine and Bag Sealing Method," discloses a bag sealing machine that, when performing bag sealing operations, uses a heat-sealing plate with a heating wire to first clamp the opening of the flexible bag and the suction tube inserted into the flexible bag. Then, air is drawn out using the suction tube, and the suction tube is then pulled out from the clamped opening of the flexible bag. Finally, the sealing plate continues to press to complete the final heat seal. However, in actual operation, before the suction tube is pulled out, the sealing plate presses the bag opening and also presses the suction tube. Moreover, the suction tube itself has a certain thickness. The repeated pressing of the sealing plate against the suction tube may cause a depression to form in the middle of the sealing plate corresponding to the suction tube. This can easily lead to a situation where, even if the two sealing plates are pressed together, the depression at the suction tube prevents the heating wire from making good contact with the bag opening, resulting in poor heat sealing. Improvement is needed. Utility Model Content

[0003] This utility model provides a bag sealing machine with a simple structure, which can prevent the sealing plate from being dented, thus preventing subsequent poor heat sealing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bag sealing machine, comprising a flaring assembly, a suction assembly, and a sealing assembly. The flaring assembly includes a crossbeam and two vertical plates slidably and symmetrically arranged on the crossbeam. The suction assembly includes a suction pipe arranged in the middle of the crossbeam, the suction pipe comprising an integrally formed upper pipe section and a lower pipe section, the lower pipe section being flat. The sealing assembly comprises two sets, the two sets of sealing assemblies being symmetrically arranged. The sealing assembly includes a horizontally arranged sealing plate and an upper pressure plate and a lower pressure plate flush with the upper and lower sides of the sealing plate. A heating strip is provided on the sealing plate. The sealing assembly also includes a mounting frame and several drivers, all mounted on the mounting frame and respectively used to drive the sealing plate, the upper pressure plate, and the lower pressure plate to move in opposite directions or in opposite directions.

[0005] In the above solution, before the suction tube is pulled out, the upper and lower pressure plates are used to press the bag opening, instead of just pressing it with the sealing plate. In actual use, the upper pressure plate presses the suction tube and the sealing plate does not need to press the suction tube, thus ensuring that the heating strip on the sealing plate can always work normally and avoiding poor sealing.

[0006] In one embodiment, the upper tube is a hollow cylinder, and the upper part of the upper tube is connected to the air pump via a hose.

[0007] In the above scheme, the upper tube is used to connect the hose, and the lower tube is designed to be flat because it needs to be inserted into the bag opening and then pulled out.

[0008] In one embodiment, the flaring assembly includes a synchronous belt drive mechanism disposed on the crossbeam, the synchronous belt drive mechanism including a synchronous belt, a slider disposed on the synchronous belt, and a vertical plate disposed on the slider.

[0009] In the above scheme, the synchronous belt drive mechanism is a common and effective symmetrical drive mechanism, which can use the synchronous belt to make two vertical plates move closer and further apart.

[0010] In one embodiment, the air extraction assembly includes a mounting base and a first lifting mechanism disposed on the mounting base, wherein the air extraction pipe is mounted on the first lifting mechanism.

[0011] In the above scheme, the first lifting mechanism can raise and lower the suction tube, thereby achieving the raising or lowering of the tube relative to the bag opening, thus enabling insertion into the bag opening and extraction from the bag opening.

[0012] In one embodiment, the first lifting mechanism is a vertically arranged belt drive mechanism, the belt drive mechanism includes a belt, a mounting block is provided on the belt, and the air extraction pipe is installed on the mounting block.

[0013] In one embodiment, both the flaring assembly and the sealing assembly include a second lifting mechanism.

[0014] In the above scheme, the crossbeam of the flaring assembly and the mounting bracket of the sealing assembly can both be driven and lifted independently.

[0015] In one embodiment, the second lifting mechanism is a linear module.

[0016] In one embodiment, flexible pressure blocks are provided on the end faces of both the upper pressure plate and the lower pressure plate.

[0017] In one embodiment, the actuator is a cylinder. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention in one embodiment;

[0019] Figure 2 This is a schematic diagram illustrating the engagement of the flaring assembly, the air extraction assembly, and the sealing assembly in one embodiment.

[0020] Figure 3 This is a schematic diagram illustrating the engagement of the flaring assembly, the air extraction assembly, and the sealing assembly in one embodiment. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 3 The present invention relates to a bag sealing machine, comprising an flaring assembly, an air extraction assembly, and a sealing assembly. The flaring assembly includes a crossbeam 1 and two vertical plates 2 slidably and symmetrically arranged on the crossbeam 1. The air extraction assembly includes an air extraction pipe 3 arranged in the middle of the crossbeam 1. The air extraction pipe 3 includes an integrally formed upper pipe section 4 and a lower pipe section 5. The lower pipe section 5 is flat. The sealing assembly consists of two sets, which are symmetrically arranged. Each sealing assembly includes a horizontally arranged sealing plate 6 and upper pressure plates 7 and lower pressure plates 8 arranged flush with the upper and lower sides of the sealing plate 6. A heating strip 9 is provided on the sealing plate 6. The sealing assembly also includes a mounting frame 10 and several drivers 11, all mounted on the mounting frame 10 and used to drive the sealing plate 6, the upper pressure plate 7, and the lower pressure plate 8 to move in opposite directions or in opposite directions.

[0023] In the above solution, before the suction tube 3 is pulled out, the upper pressure plate 7 and the lower pressure plate 8 are used to press the bag opening, instead of just the sealing plate 6. In actual use, the upper pressure plate 7 presses the suction tube 3 and the sealing plate 6 does not need to press the suction tube 3, thus ensuring that the heating strip 9 on the sealing plate 6 can always work normally and avoiding poor sealing. The heating strip 9 can be an electric heating wire, just like in the prior art. In addition, the sealing plate 6, the upper pressure plate 7 and the lower pressure plate 8 are all driven independently to press or release. Before suction, the bag opening is pressed by the upper pressure plate 7 alone, and the upper pressure plate 7 also presses the suction tube 3. The lower pressure plate 8 does not press the bag opening during the suction process, but only presses the bag opening before heat sealing. During heat sealing, the sealing plate 6 presses the bag opening to achieve sealing.

[0024] In one embodiment, the upper tube 4 is a hollow cylinder, and the upper part of the upper tube 4 is connected to the air pump via a hose.

[0025] In the above scheme, the upper tube 4 is used to connect the hose, and the lower tube 5 is designed to be flat because it needs to be inserted into the bag opening and then pulled out.

[0026] In one embodiment, the flaring assembly includes a synchronous belt drive mechanism 12 disposed on the crossbeam 1. The synchronous belt drive mechanism 12 includes a synchronous belt 13, on which a slider 14 is disposed, and the vertical plate 2 is disposed on the slider 14.

[0027] In the above scheme, the synchronous belt drive mechanism 12 is a common and effective symmetrical drive mechanism, which can use the synchronous belt 13 to make the two vertical plates 2 move closer and further apart.

[0028] In one embodiment, the air extraction assembly includes a mounting base 15 and a first lifting mechanism 16 disposed on the mounting base 15, and the air extraction pipe 3 is mounted on the first lifting mechanism 16.

[0029] In the above scheme, the first lifting mechanism 16 can cause the suction pipe 3 to rise or fall relative to the bag opening, thereby enabling insertion into the bag opening and extraction from the bag opening.

[0030] In one embodiment, the first lifting mechanism 16 is a vertically arranged belt drive mechanism, the belt drive mechanism includes a belt 17, a mounting block 18 is provided on the belt 17, and the air extraction pipe 3 is installed on the mounting block 18.

[0031] In one embodiment, both the flaring assembly and the sealing assembly include a second lifting mechanism 19.

[0032] In the above scheme, the crossbeam 1 of the flaring assembly and the mounting bracket 10 of the sealing assembly can both be driven and lifted independently.

[0033] In one embodiment, the second lifting mechanism 19 is a linear module.

[0034] In one embodiment, the end faces of both the upper pressure plate 7 and the lower pressure plate 8 are provided with flexible pressure.

[0035] Block 20.

[0036] In one embodiment, the actuator 11 is a cylinder.

Claims

1. A bag sealing machine, characterized in that: The device includes a flaring assembly, an air extraction assembly, and a sealing assembly. The flaring assembly includes a crossbeam (1) and two vertical plates (2) slidably and symmetrically arranged on the crossbeam (1). The air extraction assembly includes an air extraction pipe (3) arranged in the middle of the crossbeam (1). The air extraction pipe (3) includes an integrally formed upper pipe section (4) and a lower pipe section (5). The lower pipe section (5) is flat. The sealing assembly consists of two sets of symmetrically arranged sealing assemblies. The sealing assembly includes a horizontally arranged sealing plate (6) and an upper pressure plate (7) and a lower pressure plate (8) arranged flush on the upper and lower sides of the sealing plate (6). The sealing plate (6) is provided with a heating strip (9). The sealing assembly also includes a mounting frame (10) and several drivers (11) that are all mounted on the mounting frame (10) and are used to drive the sealing plate (6), the upper pressure plate (7), and the lower pressure plate (8) to move in opposite directions or in opposite directions.

2. The bag sealing machine according to claim 1, characterized in that: The upper tube (4) is a hollow cylinder, and the upper part of the upper tube (4) is connected to the air pump through a hose.

3. The bag sealing machine according to claim 1, characterized in that: The flaring assembly includes a synchronous belt drive mechanism (12) disposed on the crossbeam (1), the synchronous belt drive mechanism (12) includes a synchronous belt (13), a slider (14) is disposed on the synchronous belt (13), and the vertical plate (2) is disposed on the slider (14).

4. The bag sealing machine according to claim 1, characterized in that: The air extraction assembly includes a mounting base (15) and a first lifting mechanism (16) disposed on the mounting base (15), and the air extraction pipe (3) is mounted on the first lifting mechanism (16).

5. The bag sealing machine according to claim 4, characterized in that: The first lifting mechanism (16) is a vertically arranged belt drive mechanism. The belt drive mechanism includes a belt (17), and a mounting block (18) is provided on the belt (17). The air extraction pipe (3) is installed on the mounting block (18).

6. The bag sealing machine according to claim 1, characterized in that: Both the flaring assembly and the sealing assembly include a second lifting mechanism (19).

7. The bag sealing machine according to claim 6, characterized in that: The second lifting mechanism (19) is a linear module.

8. The bag sealing machine according to claim 1, characterized in that: Flexible pressure blocks (20) are provided on the end faces of both the upper pressure plate (7) and the lower pressure plate (8).

9. The bag sealing machine according to claim 1, characterized in that: The actuator (11) is a cylinder.

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