Packaging heat-sealing mechanism

Abstract

The utility model discloses a packaging heat-sealing mechanism which comprises a base plate, an upper heat-sealing plate, a lower heat-sealing plate and a driving assembly, wherein the upper heat-sealing plate and the lower heat-sealing plate are matched with the base plate in a lifting mode, the driving assembly is used for driving the upper heat-sealing plate and the lower heat-sealing plate to be close to or away from each other at the same time, and the driving assembly is connected with the base plate. The upper mounting plate is used for mounting the upper heat sealing plate; the lower mounting plate is used for mounting the lower heat sealing plate; an upper plate shaft sleeve and a lower plate shaft sleeve are fixedly arranged on the base plate, the axis directions of the upper plate shaft sleeve and the lower plate shaft sleeve are vertically arranged, an upper plate optical shaft is arranged in the upper plate shaft sleeve in a sliding mode, and a lower plate optical shaft is arranged in the lower plate shaft sleeve in a sliding mode. The packaging heat-sealing mechanism is reasonable in design, the upper heat-sealing plate and the lower heat-sealing plate are close to or away from each other at the same time, the stroke of the upper heat-sealing plate is reduced when the same film passes through the interval, and the heat-sealing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sealing, in particular to a packaging heat sealing mechanism. Background Art

[0002] During the hot air process of packaging bags, a packaging heat sealer is required. The packaging heat sealer is a device that heats and fuses the bag opening. It is used to heat seal the bag opening of the packaging bag. The packaging heat sealer provides convenience for the production of the enterprise and is conducive to the normal operation of the production line.

[0003] However, in the existing heat sealing mechanisms, the lower heat sealing plate is basically fixed, and the upper heat sealing plate is raised and lowered. In order to avoid the upper heat sealing plate interfering with the transmission of the packaging film, the upper heat sealing plate has a large stroke, which affects the heat sealing efficiency.

[0004] Therefore, it is necessary to improve the packaging heat sealing mechanism in the prior art. Utility Model Content

[0005] The utility model aims to overcome the defects in the prior art and provide a packaging heat sealing mechanism, in which an upper heat sealing plate and a lower heat sealing plate are simultaneously approached or separated, and the same film passing distance is achieved but the stroke of the upper heat sealing plate is reduced, thereby improving the heat sealing efficiency.

[0006] To achieve the above technical effect, the technical solution of the utility model is: a packaging heat sealing mechanism, comprising a base plate, an upper heat sealing plate and a lower heat sealing plate that cooperate with the base plate to rise and fall, and a driving component for driving the upper heat sealing plate and the lower heat sealing plate to approach or move away from each other at the same time, wherein the driving component is connected to the base plate; it also includes an upper mounting plate for mounting the upper heat sealing plate and a lower mounting plate for mounting the lower heat sealing plate; the base plate is fixedly provided with an upper plate sleeve and a lower plate sleeve, the axis center line direction of the upper plate sleeve and the lower plate sleeve is vertically arranged, an upper plate optical axis is slidably arranged in the upper plate sleeve, and a lower plate optical axis is slidably arranged in the lower plate sleeve, one end of the upper plate optical axis is fixedly connected to the upper mounting plate, the other ends of the two upper plate optical axes are fixedly connected through a first connecting plate, one end of the lower plate optical axis is fixedly connected to the lower mounting plate, and the other ends of the two lower plate optical axes are fixedly connected through a second connecting plate; the driving component is used to drive the first connecting plate and the second connecting plate to approach or move away from each other at the same time.

[0007] The preferred technical solution is that it also includes a main connecting rod rotatably connected to the frame, and the first connecting rod and the second connecting rod are rotatably arranged at both ends of the main connecting rod, the first connecting rod is rotatably connected to the first connecting plate, and the second connecting rod is rotatably connected to the second connecting plate, and the axial centerline directions of the rotation axes of the main connecting rod, the first connecting rod and the second connecting rod are all perpendicular to the axial centerline direction of the upper plate sleeve.

[0008] The preferred technical solution is that the driving assembly includes a first rotating shaft rotatably connected to the frame and a motor for driving the first rotating shaft to rotate, the axial centerline direction of the first rotating shaft is parallel to the axial centerline direction of the main connecting rod, a cam is fixedly provided on the first rotating shaft, and the main connecting rod is provided with an abutment member that abuts against the cam.

[0009] A preferred technical solution is that the abutment member includes a roller rotatably connected to the main connecting rod, the axis centerline direction of the rotating shaft of the roller is parallel to the axis centerline direction of the first rotating shaft, and the wheel surface of the roller is arranged to abut against the cam.

[0010] A preferred technical solution is to further include a retaining assembly for keeping the roller in contact with the cam at all times.

[0011] The preferred technical solution is that it also includes a fixed shaft seat and a connecting rod shaft rotatably set in the shaft seat, and the connecting rod shaft is fixedly connected to the main connecting rod; matching protrusions and grooves are set between the connecting rod shaft and the main connecting rod.

[0012] A preferred technical solution is that the retaining assembly includes a torsion spring, which is sleeved outside the connecting rod rotating shaft, one end of the torsion spring is fixedly connected to the connecting rod rotating shaft, and the other end of the torsion spring is fixedly connected to the shaft seat.

[0013] The advantages and beneficial effects of the utility model are as follows: the packaging heat sealing mechanism of the utility model has a reasonable structure, and by arranging a driving component to drive the upper heat sealing plate and the lower heat sealing plate to approach or move away at the same time, the same film passing gap can reduce the stroke of the upper heat sealing plate by half, thereby improving the heat sealing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the packaging heat sealing mechanism of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the heat sealing mechanism;

[0016] Figure 3 It is a schematic diagram of the drive assembly structure (motor omitted);

[0017] Figure 4 It is a schematic diagram of the structure in which the torsion spring and the shaft seat cooperate;

[0018] Figure 5 It is an exploded schematic diagram of the cooperation between the main connecting rod and the connecting rod shaft;

[0019] In the figure: 1, base plate; 2, upper heat sealing plate; 3, lower heat sealing plate; 4, upper mounting plate; 5, lower mounting plate; 6, upper plate sleeve; 7, lower plate sleeve; 8, upper plate optical axis; 9, lower plate optical axis; 10, first connecting plate; 11, second connecting plate; 12, main connecting rod; 13, first connecting rod; 14, second connecting rod; 15, first rotating shaft; 16, motor; 17, cam; 18, roller; 19, shaft seat; 20, connecting rod rotating shaft; 21, protrusion; 22, groove; 23, torsion spring. DETAILED DESCRIPTION

[0020] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", "vertical", "top", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] Example

[0023] like Figure 1-5 As shown, the packaging heat sealing mechanism of the embodiment includes a base plate 1, an upper heat sealing plate 2 and a lower heat sealing plate 3 which are lifted and lowered with the base plate 1, and a driving component for driving the upper heat sealing plate 2 and the lower heat sealing plate 3 to move closer or farther away at the same time, wherein the driving component is connected to the base plate 1; and further includes an upper mounting plate 4 for mounting the upper heat sealing plate 2, and a lower mounting plate 5 for mounting the lower heat sealing plate 3; the base plate 1 is fixedly provided with an upper plate shaft sleeve 6 and a lower plate shaft sleeve 7, and the axis centerline direction of the upper plate shaft sleeve 6 and the lower plate shaft sleeve 7 is vertical It is arranged that an upper plate optical axis 8 is slidably arranged in the upper plate sleeve 6, and a lower plate optical axis 9 is slidably arranged in the lower plate sleeve 7, one end of the upper plate optical axis 8 is fixedly connected to the upper mounting plate 4, and the other ends of the two upper plate optical axes 8 are fixedly connected through a first connecting plate 10, one end of the lower plate optical axis 9 is fixedly connected to the lower mounting plate 5, and the other ends of the two lower plate optical axes 9 are fixedly connected through a second connecting plate 11; the driving assembly is used to drive the first connecting plate 10 and the second connecting plate 11 to approach or move away at the same time.

[0024] Through such a design, the purpose of the driving component driving the upper heat sealing plate 2 and the lower heat sealing plate 3 to move closer or farther away at the same time is achieved.

[0025] Specifically, it also includes a main connecting rod 12 rotatably connected to the frame, and the two ends of the main connecting rod 12 are rotatably provided with a first connecting rod 13 and a second connecting rod 14, the first connecting rod 13 is rotatably connected to the first connecting plate 10, and the second connecting rod 14 is rotatably connected to the second connecting plate 11, and the axial centerline directions of the rotation axes of the main connecting rod 12, the first connecting rod 13 and the second connecting rod 14 are perpendicular to the axial centerline direction of the upper plate sleeve 6.

[0026] Through such a design, the rotation of the main connecting rod 12 can drive the first connecting plate 10 and the second connecting plate 11 to move closer or farther away at the same time.

[0027] Specifically, the driving assembly includes a first rotating shaft 15 rotatably connected to the frame and a motor 16 for driving the first rotating shaft 15 to rotate. The axial direction of the first rotating shaft 15 is parallel to the axial direction of the main connecting rod 12. A cam 17 is fixedly provided on the first rotating shaft 15, and the main connecting rod 12 is provided with an abutment member that abuts against the cam 17.

[0028] Through such a design, the rotation of the cam 17 drives the rotation of the main connecting rod 12 .

[0029] Specifically, the abutment member includes a roller 18 rotatably connected to the main connecting rod 12 , the axis of the rotation axis of the roller 18 is parallel to the axis of the first rotating shaft 15 , and the wheel surface of the roller 18 is disposed against the cam 17 .

[0030] Such a design improves the smoothness of driving the main connecting rod 12 to rotate.

[0031] Specifically, it also includes a retaining component for keeping the roller 18 always against the cam 17 .

[0032] This design ensures that when the cam 17 rotates from the convex point to the low point, the roller 18 can also contact the cam 17, and the main connecting rod 12 can reciprocate.

[0033] Specifically, it also includes a fixed shaft seat 19 and a connecting rod shaft 20 rotatably set in the shaft seat 19, wherein the connecting rod shaft 20 is fixedly connected to the main connecting rod 12; matching protrusions 21 and grooves 22 are provided between the connecting rod shaft 20 and the main connecting rod 12.

[0034] Such a design ensures that the connecting rod rotating shaft 20 and the main connecting rod 12 move synchronously.

[0035] Specifically, the retaining assembly includes a torsion spring 23 , which is sleeved outside the connecting rod shaft 20 , one end of the torsion spring 23 is fixedly connected to the connecting rod shaft 20 , and the other end of the torsion spring 23 is fixedly connected to the shaft seat 19 .

[0036] Through such a design, the reset performance of the torsion spring is utilized to ensure that the main connecting rod 12 can be reset after rotation.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A packaging heat sealing mechanism, characterized in that: The invention comprises a base plate (1), an upper heat sealing plate (2) and a lower heat sealing plate (3) which are coordinated with the base plate (1) for lifting, and a driving component for driving the upper heat sealing plate (2) and the lower heat sealing plate (3) to move closer or farther away from each other at the same time, wherein the driving component is connected to the base plate (1); and further comprises an upper mounting plate (4) for mounting the upper heat sealing plate (2) and a lower mounting plate (5) for mounting the lower heat sealing plate (3); the base plate (1) is fixedly provided with an upper plate shaft sleeve (6) and a lower plate shaft sleeve (7), wherein the axis center lines of the upper plate shaft sleeve (6) and the lower plate shaft sleeve (7) are arranged vertically, and the upper plate shaft sleeve (6) and the lower plate shaft sleeve (7) are arranged vertically. An upper plate optical axis (8) is slidably disposed in the upper plate shaft sleeve (6), and a lower plate optical axis (9) is slidably disposed in the lower plate shaft sleeve (7); one end of the upper plate optical axis (8) is fixedly connected to the upper mounting plate (4), and the other ends of the two upper plate optical axes (8) are fixedly connected via a first connecting plate (10); one end of the lower plate optical axis (9) is fixedly connected to the lower mounting plate (5), and the other ends of the two lower plate optical axes (9) are fixedly connected via a second connecting plate (11); and the driving assembly is used to drive the first connecting plate (10) and the second connecting plate (11) to move closer or farther away at the same time.

2. The packaging heat sealing mechanism according to claim 1, characterized in that: It also includes a main connecting rod (12) rotatably connected to the frame, and a first connecting rod (13) and a second connecting rod (14) are rotatably provided at both ends of the main connecting rod (12), the first connecting rod (13) is rotatably connected to the first connecting plate (10), and the second connecting rod (14) is rotatably connected to the second connecting plate (11), and the axis centerline directions of the rotation axes of the main connecting rod (12), the first connecting rod (13) and the second connecting rod (14) are all perpendicular to the axis centerline direction of the upper plate sleeve (6).

3. The packaging heat sealing mechanism according to claim 2, characterized in that: The driving assembly comprises a first rotating shaft (15) rotatably connected to the frame and a motor (16) for driving the first rotating shaft (15) to rotate, the axis direction of the first rotating shaft (15) being parallel to the axis direction of the main connecting rod (12), a cam (17) being fixedly arranged on the first rotating shaft (15), and the main connecting rod (12) being provided with an abutment member abutting against the cam (17).

4. The packaging heat sealing mechanism according to claim 3, characterized in that: The abutment member comprises a roller (18) rotatably connected to the main connecting rod (12), the axis centerline direction of the rotation axis of the roller (18) being parallel to the axis centerline direction of the first rotating shaft (15), and the wheel surface of the roller (18) being arranged to abut against the cam (17).

5. The packaging heat sealing mechanism according to claim 4, characterized in that: It also includes a retaining assembly for always keeping the roller (18) against the cam (17).

6. The packaging heat sealing mechanism according to claim 5, characterized in that: It also comprises a fixedly arranged shaft seat (19), and a connecting rod rotating shaft (20) rotatably arranged in the shaft seat (19); the connecting rod rotating shaft (20) is fixedly connected to the main connecting rod (12); and a matching protrusion (21) and a groove (22) are provided between the connecting rod rotating shaft (20) and the main connecting rod (12).

7. The packaging heat sealing mechanism according to claim 6, characterized in that: The retaining assembly comprises a torsion spring (23), wherein the torsion spring (23) is sleeved outside the connecting rod rotating shaft (20), one end of the torsion spring (23) is fixedly connected to the connecting rod rotating shaft (20), and the other end of the torsion spring (23) is fixedly connected to the shaft seat (19).

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