Heat sealing mechanism

Abstract

The utility model relates to the technical field of packaging machines, and discloses a heat sealing mechanism which is characterized in that a first heat sealing cutter and a second heat sealing cutter both have a heating function, and a seventh heat sealing fixing plate is driven by a heat sealing driving mechanism to move up and down; a seventh heat-sealing fixing plate drives a fourth heat-sealing fixing plate to move up and down through a heat-sealing movable rod so that a first heat-sealing cutter can move up and down, meanwhile, a heat-sealing linkage assembly drives a fifth heat-sealing fixing plate to move up and down so that a second heat-sealing cutter can move up and down, and the first heat-sealing cutter and the second heat-sealing cutter get close to each other or get away from each other. And carrying out heat sealing on the opening of the packaging bag.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a heat sealing mechanism. Background Technology

[0002] Film packaging machines typically include the following mechanisms: bag making, bag feeding, bag opening, material feeding, and sealing. A heat-sealing mechanism is one type of sealing. A conventional heat-sealing mechanism includes a first heat-sealing blade and a second heat-sealing blade. The first heat-sealing blade is located above the second heat-sealing blade, which remains stationary. Heat sealing is performed by the first heat-sealing blade moving downwards. The second heat-sealing blade is not heated; only the first heat-sealing blade is heated, resulting in low heat-sealing efficiency. If the second heat-sealing blade were also heated, the packaging bag would move to the second heat-sealing blade first, and the second heat-sealing blade would directly heat the packaging bag, causing the bag opening to shrink prematurely and damaging the packaging bag. Utility Model Content

[0003] Based on the above, the purpose of this utility model is to provide a heat-sealing mechanism that improves heat-sealing efficiency without damaging the packaging bag.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model provides a heat sealing mechanism, including:

[0006] The first heat-sealing fixing plate is connected to the suction conveying mechanism of the packaging machine;

[0007] The second heat-sealing fixing plate is connected to the first heat-sealing fixing plate, and heat-sealing movable rods are movably sleeved on both sides of it.

[0008] The third heat-sealing fixing plate is connected to the first heat-sealing fixing plate and is located below the second heat-sealing fixing plate. The heat-sealing movable rods are movably sleeved on both sides of the third heat-sealing fixing plate.

[0009] A fourth heat-sealing fixing plate is connected to the top of the heat-sealing movable rod, and a first heat-sealing cutter is provided below the fourth heat-sealing fixing plate;

[0010] The fifth heat-sealing fixing plate is located below the fourth heat-sealing fixing plate and above the first heat-sealing fixing plate. A second heat-sealing knife is provided on it, and the second heat-sealing knife is located below the first heat-sealing knife. The heat-sealing movable rod is movably sleeved on the fifth heat-sealing fixing plate.

[0011] The sixth heat-sealing fixing plate is located below the third heat-sealing fixing plate, and its two ends are connected to the bottom of the heat-sealing movable rod;

[0012] A heat sealing drive mechanism is mounted on the third heat sealing fixing plate, and its output end is connected to the sixth heat sealing fixing plate.

[0013] A heat-sealing linkage assembly connects the sixth heat-sealing fixing plate and the fifth heat-sealing fixing plate.

[0014] Furthermore, a seventh heat-sealing fixing plate is also provided between the second heat-sealing fixing plate and the third heat-sealing fixing plate;

[0015] A heat-sealing linkage shaft is rotatably provided between the first heat-sealing fixing plate and the seventh heat-sealing fixing plate;

[0016] The heat-sealing linkage assembly includes a heat-sealing swing arm, the middle part of which is sleeved on the heat-sealing linkage shaft. One end of the heat-sealing swing arm is hinged to a first heat-sealing linkage rod, the bottom of which is hinged to a sixth heat-sealing fixing plate. The other end of the heat-sealing swing arm is hinged to a second heat-sealing linkage rod, the top of which is hinged to a fifth heat-sealing fixing plate.

[0017] Furthermore, the third heat-sealing fixing plate is provided with a first heat-sealing opening clearance groove, and the first heat-sealing opening linkage rod passes through the first heat-sealing opening clearance groove.

[0018] Furthermore, a second heat-sealing clearance groove is provided on the second heat-sealing fixing plate, and the second heat-sealing linkage rod passes through the second heat-sealing clearance groove.

[0019] Furthermore, the heat sealing drive mechanism is a cylinder.

[0020] Furthermore, an eighth heat-sealing fixing plate is connected below the fourth heat-sealing fixing plate, the first heat-sealing knife is disposed on the eighth heat-sealing fixing plate, and a buffer limiting rod is connected below the eighth heat-sealing fixing plate;

[0021] A ninth heat-sealing fixing plate is also provided above the fifth heat-sealing fixing plate, and the second heat-sealing knife is disposed on the ninth heat-sealing fixing plate;

[0022] The buffer limiting rod can abut against the ninth heat-sealing fixing plate.

[0023] Furthermore, the fifth heat-sealing fixing plate is also provided with a suction material collection component;

[0024] The suction material collection assembly includes a suction material collection fixing frame, on which a suction material collection shovel is provided. The suction material collection shovel is provided with a material collection inlet and a material collection outlet. The material collection inlet is located behind the first heat sealing knife and the second heat sealing knife, and the material collection outlet can be connected to a negative pressure device.

[0025] The beneficial effects of this utility model are as follows:

[0026] This utility model provides a heat sealing mechanism. Both the first and second heat sealing knives are heated. A heat sealing drive mechanism drives a seventh heat sealing fixing plate to move up and down. The seventh heat sealing fixing plate drives a fourth heat sealing fixing plate to move up and down via a heat sealing movable rod, enabling the first heat sealing knife to move up and down. At the same time, a heat sealing linkage component drives a fifth heat sealing fixing plate to move up and down, enabling the second heat sealing knife to move up and down. The first and second heat sealing knives move closer to or further away from each other to heat seal the opening of the packaging bag. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the heat sealing mechanism provided in an embodiment of the present utility model;

[0029] Figure 2 This is a structural schematic diagram of the heat sealing mechanism provided in an embodiment of the present utility model.

[0030] In the diagram: 11. First heat-sealing fixing plate; 12. Second heat-sealing fixing plate; 13. Third heat-sealing fixing plate; 14. Fourth heat-sealing fixing plate; 15. Fifth heat-sealing fixing plate; 16. Sixth heat-sealing fixing plate; 17. Seventh heat-sealing fixing plate; 18. Eighth heat-sealing fixing plate; 19. Ninth heat-sealing fixing plate; 2. Heat-sealing movable rod; 3. First heat-sealing knife; 4. Second heat-sealing knife; 5. Heat-sealing drive mechanism; 6. Heat-sealing linkage assembly; 61. Heat-sealing linkage shaft; 62. Heat-sealing swing arm; 63. First heat-sealing linkage rod; 64. Second heat-sealing linkage rod; 7. Buffer limit rod; 8. Suction material collection assembly; 81. Suction material collection fixing frame; 82. Suction material collection shovel; 821. Material collection inlet; 822. Material collection outlet. Detailed Implementation

[0031] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] like Figure 1 and 2As shown, this utility model embodiment provides a heat-sealing mechanism, including: a first heat-sealing fixing plate 11, which is connected to the suction conveying mechanism of a packaging machine; the suction conveying mechanism of the packaging machine is not an innovation of this application and will not be described in detail here. A second heat-sealing fixing plate 12, which is connected to the first heat-sealing fixing plate 11, and heat-sealing movable rods 2 are movably sleeved on both sides of the second heat-sealing fixing plate 12; a third heat-sealing fixing plate 13, which is connected to the first heat-sealing fixing plate 11 and is located below the second heat-sealing fixing plate 12, and heat-sealing movable rods 2 are movably sleeved on both sides of the third heat-sealing fixing plate 13; a fourth heat-sealing fixing plate 14, which is connected to the top of the heat-sealing movable rods 2, and a first heat-sealing cutter 3 is provided below the fourth heat-sealing fixing plate 14; a fifth heat-sealing fixing plate 15, which is located below the fourth heat-sealing fixing plate 14 and above the first heat-sealing fixing plate 11, and is provided with a... The second heat-sealing cutter 4 is located below the first heat-sealing cutter 3. The heat-sealing movable rod 2 is movably sleeved on the fifth heat-sealing fixing plate 15. The sixth heat-sealing fixing plate 16 is located below the third heat-sealing fixing plate 13, and its two ends are connected to the bottom of the heat-sealing movable rod 2. The heat-sealing drive mechanism 5 is a cylinder, which is set on the third heat-sealing fixing plate 13, and its output end is connected to the sixth heat-sealing fixing plate 16. The heat-sealing linkage assembly 6 connects the sixth heat-sealing fixing plate 16 and the fifth heat-sealing fixing plate 15.

[0036] This utility model embodiment provides a heat sealing mechanism. The first heat sealing knife 3 and the second heat sealing knife 4 are both heated. The seventh heat sealing fixing plate 17 is driven to move up and down by the heat sealing driving mechanism 5. The seventh heat sealing fixing plate 17 drives the fourth heat sealing fixing plate 14 to move up and down through the heat sealing movable rod 2, so that the first heat sealing knife 3 can move up and down. At the same time, the fifth heat sealing fixing plate 15 is driven to move up and down through the heat sealing linkage component 6, so that the second heat sealing knife can move up and down. The first heat sealing knife and the second heat sealing knife move closer to each other or further away from each other to heat seal the opening of the packaging bag, thereby improving the heat sealing efficiency without damaging the packaging bag.

[0037] like Figure 1 and 2 As shown, a seventh heat-sealing fixing plate 17 is also provided between the second heat-sealing fixing plate 12 and the third heat-sealing fixing plate 13; a heat-sealing linkage shaft 61 is rotatably provided between the first heat-sealing fixing plate 11 and the seventh heat-sealing fixing plate 17; the heat-sealing linkage assembly 6 includes a heat-sealing swing arm 62, the middle part of which is sleeved on the heat-sealing linkage shaft 61, one end of which is hinged to a first heat-sealing linkage rod 63, the bottom of which is hinged to the sixth heat-sealing fixing plate 16, the other end of which is hinged to a second heat-sealing linkage rod 64, and the top of which is hinged to the fifth heat-sealing fixing plate.

[0038] The third heat-sealing fixing plate 13 has a first heat-sealing opening avoidance groove, and the first heat-sealing opening linkage rod 63 passes through the first heat-sealing opening avoidance groove. The second heat-sealing fixing plate 12 has a second heat-sealing opening avoidance groove, and the second heat-sealing opening linkage rod 64 passes through the second heat-sealing opening avoidance groove.

[0039] In this embodiment of the invention, when the heat-sealing driving mechanism 5 drives the sixth heat-sealing fixing plate 16 to move downward, the sixth heat-sealing fixing plate 16 drives the fourth heat-sealing fixing plate 14 to move downward via the heat-sealing movable rod 2. The fourth heat-sealing fixing plate 14 drives the first heat-sealing knife 3 to move downward. Simultaneously, the sixth heat-sealing fixing plate 16 drives the first heat-sealing linkage rod 63 to move downward. The first heat-sealing linkage rod 63 drives the heat-sealing swing arm 62 to swing. The heat-sealing swing arm 62 drives the second heat-sealing linkage rod 64 to move upward. The second heat-sealing linkage rod 64 drives the fifth heat-sealing fixing plate 15 to move upward. The second heat-sealing knife moves upward simultaneously, and the first heat-sealing knife 3 and the second heat-sealing knife 4 approach each other to heat-seal the opening of the packaging bag. The heat-sealing linkage component 6 enables the single heat-sealing driving mechanism 5 to simultaneously drive the first heat-sealing knife 3 and the second heat-sealing knife 4 to approach each other for heat sealing, ensuring heat sealing synchronization.

[0040] like Figure 1 and 2 As shown, an eighth heat-sealing fixing plate 18 is connected below the fourth heat-sealing fixing plate 14, and the first heat-sealing knife 3 is disposed on the eighth heat-sealing fixing plate 18. A buffer limiting rod 7 is connected below the eighth heat-sealing fixing plate 18. A ninth heat-sealing fixing plate 19 is disposed above the fifth heat-sealing fixing plate 15, and the second heat-sealing knife is disposed on the ninth heat-sealing fixing plate 19. The buffer limiting rod 7 can abut against the ninth heat-sealing fixing plate 19. Specifically, in this embodiment, by setting the buffer limiting rod 7, when the first heat-sealing knife and the second heat-sealing knife approach each other, the force between the first heat-sealing knife and the second heat-sealing knife during heat sealing is balanced by the buffer limiting rod 7, which can extend the life of the first heat-sealing knife and the second heat-sealing knife.

[0041] like Figure 2 As shown, the fifth heat-sealing fixing plate 15 is also provided with a suction material collection assembly 8; the suction material collection assembly 8 includes a suction material collection fixing frame 81, the suction material collection fixing frame 81 is provided with a suction material collection shovel 82, the suction material collection shovel 82 is provided with a material collection inlet 821 and a material collection outlet 822, the material collection inlet is located behind the first heat-sealing knife 3 and the second heat-sealing knife 4, and the material collection outlet 822 can be connected to a negative pressure device. Specifically, in this embodiment, the first heat-sealing knife 3 and the second heat-sealing knife 4 will cut off the excess bag opening material head during heat sealing, and the bag opening material head will be sucked in from the material collection inlet 821 by negative pressure.

[0042] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A heat sealing mechanism characterized by, include: The first heat-sealing fixing plate is connected to the suction conveying mechanism of the packaging machine; The second heat-sealing fixing plate is connected to the first heat-sealing fixing plate, and heat-sealing movable rods are movably sleeved on both sides of it. The third heat-sealing fixing plate is connected to the first heat-sealing fixing plate and is located below the second heat-sealing fixing plate. The heat-sealing movable rods are movably sleeved on both sides of the third heat-sealing fixing plate. A fourth heat-sealing fixing plate is connected to the top of the heat-sealing movable rod, and a first heat-sealing cutter is provided below the fourth heat-sealing fixing plate; The fifth heat-sealing fixing plate is located below the fourth heat-sealing fixing plate and above the first heat-sealing fixing plate. A second heat-sealing knife is provided on it, and the second heat-sealing knife is located below the first heat-sealing knife. The heat-sealing movable rod is movably sleeved on the fifth heat-sealing fixing plate. The sixth heat-sealing fixing plate is located below the third heat-sealing fixing plate, and its two ends are connected to the bottom of the heat-sealing movable rod; A heat sealing drive mechanism is mounted on the third heat sealing fixing plate, and its output end is connected to the sixth heat sealing fixing plate. A heat-sealing linkage assembly connects the sixth heat-sealing fixing plate and the fifth heat-sealing fixing plate.

2. A heat sealing mechanism according to claim 1, wherein A seventh heat-sealing fixing plate is also provided between the second heat-sealing fixing plate and the third heat-sealing fixing plate; A heat-sealing linkage shaft is rotatably provided between the first heat-sealing fixing plate and the seventh heat-sealing fixing plate; The heat-sealing linkage assembly includes a heat-sealing swing arm, the middle part of which is sleeved on the heat-sealing linkage shaft. One end of the heat-sealing swing arm is hinged to a first heat-sealing linkage rod, the bottom of which is hinged to a sixth heat-sealing fixing plate. The other end of the heat-sealing swing arm is hinged to a second heat-sealing linkage rod, the top of which is hinged to a fifth heat-sealing fixing plate.

3. A heat sealing mechanism according to claim 2, wherein The third heat-sealing fixing plate is provided with a first heat-sealing opening avoidance groove, and the first heat-sealing opening linkage rod passes through the first heat-sealing opening avoidance groove.

4. A heat sealing mechanism according to claim 2, wherein The second heat-sealing fixing plate is provided with a second heat-sealing opening clearance groove, and the second heat-sealing opening linkage rod passes through the second heat-sealing opening clearance groove.

5. The heat sealing mechanism of claim 1, wherein The heat sealing drive mechanism is a cylinder.

6. A heat sealing mechanism according to claim 2, wherein An eighth heat-sealing fixing plate is connected below the fourth heat-sealing fixing plate. The first heat-sealing knife is disposed on the eighth heat-sealing fixing plate, and a buffer limiting rod is connected below the eighth heat-sealing fixing plate. A ninth heat-sealing fixing plate is also provided above the fifth heat-sealing fixing plate, and the second heat-sealing knife is provided on the ninth heat-sealing fixing plate; The buffer limiting rod can abut against the ninth heat-sealing fixing plate.

7. A heat sealing mechanism according to claim 1, wherein The fifth heat-sealing fixing plate is also provided with a suction material collection component; The suction material collection assembly includes a suction material collection fixing frame, on which a suction material collection shovel is provided. The suction material collection shovel is provided with a material collection inlet and a material collection outlet. The material collection inlet is located behind the first heat sealing knife and the second heat sealing knife, and the material collection outlet can be connected to a negative pressure device.

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