Packaging bag heat sealing mechanism

Abstract

This utility model discloses a heat-sealing mechanism for packaging bags, belonging to the technical field of heat-sealing machines. It includes a frame with a conveyor roller installed in the middle. A guide assembly is provided on one side of the bottom of the frame, and a vertical frame is provided in the middle of the upper end of the frame. Two hydraulic cylinders are provided on both sides of the upper end of the vertical frame, and a mounting frame is connected to the lower end of each hydraulic cylinder. This utility model uses a guide assembly. A drive motor rotates, causing a bidirectional lead screw to rotate. The movable seats at both ends of the bidirectional lead screw move on a limiting slide rod, bringing the guide plate closer to the packaging bag. A rotating adjustment disc rotates the threaded rod, and the limiting rod slides within the movable seat, causing the lifting plate to move up and down. A connecting rod on the side of the lifting plate adjusts the height of the guide plate, rotating the opening angle of the guide plate to facilitate the movement of the packaging bag to the middle of the guide frame. The guide rollers provide guidance, preventing deviations in heat sealing and affecting the heat-sealing quality.

Description

Technical Field

[0001] This utility model belongs to the field of heat sealing machine technology, specifically relating to a heat sealing mechanism for packaging bags. Background Technology

[0002] Currently, the plastic packaging industry requires plastic bags to have a certain strength and airtightness to reduce the occurrence of packaging bag rupture and leakage during transportation. For sealing packaging bags, manufacturers mostly use heat sealing machines to seal the bag openings.

[0003] Existing heat-sealing mechanisms for packaging bags have several drawbacks: the packaging bag cannot be centered, causing deviations in the heat sealing process and affecting the quality of the heat sealing; at the same time, they cannot print anti-counterfeiting labels on the packaging bags, causing inconvenience in use. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a packaging bag heat-sealing mechanism, which features centered bag conveying, good heat-sealing effect, and convenient anti-counterfeiting label printing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-sealing mechanism for packaging bags, including a frame, a conveying roller installed in the middle of the frame, a guide assembly provided on one side of the bottom of the frame, a vertical frame provided in the middle of the upper end of the frame, hydraulic cylinders II provided on both sides of the upper end of the vertical frame, a mounting frame connected to the lower end of the hydraulic cylinders II, hydraulic cylinders I provided on both sides of the mounting frame, a heat-sealing plate provided on the side of the hydraulic cylinders I, and a coding assembly provided on the upper end of the frame away from the guide assembly.

[0006] Preferably, the guiding assembly includes a drive motor, a bidirectional lead screw, a limiting slide bar, a movable seat, a lifting assembly, and a guide plate. The drive motor is installed on the side of the frame, the shaft of the drive motor is connected to the bidirectional lead screw, the two ends of the surface of the bidirectional lead screw are connected to the movable seat, the two sides of the movable seat are provided with limiting slide bars, the upper end of the movable seat is connected to the lifting assembly, and the side of the lifting assembly is installed with a guide plate.

[0007] Preferably, the lifting assembly includes a connecting rod, an adjusting plate, a bearing seat, a lifting plate, a limiting rod, and a threaded rod. The upper end of the movable seat is threaded with a threaded rod at the middle. The upper ends of the movable seat are slidably connected to the two sides. The upper ends of the limiting rods are connected to the lifting plate. The upper ends of the threaded rods are connected to the lifting plate, and the top of the threaded rods is provided with an adjusting plate. The side of the lifting plate is connected to the guide plate.

[0008] Preferably, the guide plate includes a guide frame, a guide plate, and guide rollers, wherein the guide plate is rotatably connected to the side damping shaft of the guide frame, and a plurality of guide rollers are rotatably connected to the central shaft pin of the guide frame.

[0009] Preferably, the coding assembly includes a movable frame, a third hydraulic cylinder, a fixed frame, a fourth hydraulic cylinder, a clamping plate, a positioning frame, and a printhead. The upper two sides of the fixed frame are connected to the third hydraulic cylinder, the lower end of the third hydraulic cylinder is connected to the movable frame, the two sides of the movable frame are equipped with the fourth hydraulic cylinder, the sides of the fourth hydraulic cylinder are connected to the clamping plate, the lower end of the clamping plate is connected to the positioning frame, and the printhead is set in the middle of the positioning frame.

[0010] Preferably, the positioning frame and the clamping plate are fastened together, and the side of the clamping plate is flush with the side of the positioning frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model is equipped with a guide assembly. The drive motor rotates, which drives the bidirectional lead screw to rotate. The movable seats at both ends of the bidirectional lead screw move on the limiting slide rod, so that the guide plate is close to the packaging bag. The rotating adjustment plate rotates the threaded rod, and the limiting rod slides in the movable seat to limit the movement, so that the lifting plate moves up and down. The connecting rod on the side of the lifting plate drives the height adjustment of the guide plate. The opening angle of the rotating guide plate is used to facilitate the movement of the packaging bag to the middle of the guide frame. The guide roller guides the bag to avoid deviation in heat sealing and affect the heat sealing quality.

[0013] 2. This utility model is equipped with a coding component. The conveyor roller conveys the packaging bag to the bottom of the coding component. The hydraulic cylinder extends three times to move the movable frame down, and the hydraulic cylinder extends four times to drive the clamping plate to move. The clamping plate clamps the packaging bag, and the positioning frame positions it to facilitate the printing of anti-counterfeiting marks by the printhead. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the guide component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the lifting component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the guide plate structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the inkjet printing component structure of this utility model;

[0019] In the diagram: 1. Frame; 2. Conveyor roller; 3. Guide assembly; 31. Drive motor; 32. Bidirectional lead screw; 33. Limiting slide bar; 34. Moving seat; 35. Lifting assembly; 351. Connecting rod; 352. Adjusting disc; 353. Bearing seat; 354. Lifting plate; 355. Limiting rod; 356. Threaded rod; 36. Guide plate; 361. Guide frame; 362. Guide plate; 363. Guide roller; 4. Stand; 5. Inkjet assembly; 51. Movable frame; 52. Hydraulic cylinder three; 53. Fixed frame; 54. Hydraulic cylinder four; 55. Clamping plate; 56. Positioning frame; 57. Printhead; 6. Heat sealing plate; 7. Hydraulic cylinder one; 8. Mounting frame; 9. Hydraulic cylinder two. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1-5 The present invention provides the following technical solution: a heat sealing mechanism for packaging bags, including a frame 1, a conveying roller 2 installed in the middle of the frame 1, a guide component 3 provided on one side of the bottom of the frame 1, a stand 4 provided in the middle of the upper end of the frame 1, hydraulic cylinders 9 on both sides of the upper end of the stand 4, a mounting frame 8 connected to the lower end of the hydraulic cylinders 9, hydraulic cylinders 7 on both sides of the mounting frame 8, a heat sealing plate 6 installed on the side of the hydraulic cylinders 7, and a coding component 5 provided on the side of the upper end of the frame 1 away from the guide component 3.

[0023] Specifically, the guide assembly 3 includes a drive motor 31, a bidirectional lead screw 32, a limiting slide bar 33, a movable seat 34, a lifting assembly 35, and a guide plate 36. The drive motor 31 is installed on the side of the frame 1. The shaft of the drive motor 31 is connected to the bidirectional lead screw 32. The movable seat 34 is connected to both ends of the surface of the bidirectional lead screw 32. The movable seat 34 is provided with limiting slide bars 33 on both sides. The upper end of the movable seat 34 is connected to the lifting assembly 35. The guide plate 36 is installed on the side of the lifting assembly 35.

[0024] By adopting the above technical solution, the drive motor 31 rotates and drives the bidirectional lead screw 32 to rotate. The moving seats 34 at both ends of the bidirectional lead screw 32 move on the limiting slide bar 33, so that the guide plate 36 is close to the packaging bag. The lifting component 35 drives the guide plate 36 to adjust its height. The guide plate 36 guides the bag and avoids deviation in heat sealing, which would affect the heat sealing quality.

[0025] Specifically, the lifting assembly 35 includes a connecting rod 351, an adjusting plate 352, a bearing seat 353, a lifting plate 354, a limiting rod 355, and a threaded rod 356. The upper end of the movable seat 34 is threaded with the threaded rod 356. The upper ends of the movable seat 34 are slidably connected to the limiting rods 355 on both sides. The upper end of the limiting rods 355 is connected to the lifting plate 354. The upper end of the threaded rod 356 is connected to the lifting plate 354 with the bearing seat 353. The top of the threaded rod 356 is provided with the adjusting plate 352. The side of the lifting plate 354 is connected to the guide plate 36 with the connecting rod 351.

[0026] By adopting the above technical solution, the rotating adjustment plate 352 causes the threaded rod 356 to rotate, and the limiting rod 355 slides in the moving seat 34 to limit the movement, so that the lifting plate 354 moves up and down, and the connecting rod 351 on the side of the lifting plate 354 drives the guide plate 36 to adjust its height.

[0027] Specifically, the guide plate 36 includes a guide frame 361, a guide plate 362, and guide rollers 363. The guide plate 362 is rotatably connected to the side damping shaft of the guide frame 361, and several guide rollers 363 are rotatably connected to the central shaft pin of the guide frame 361.

[0028] By adopting the above technical solution, the opening angle of the rotating guide plate 362 facilitates the movement of the packaging bag to the middle of the guide frame 361, and guides it through the guide roller 363, thus avoiding deviations in heat sealing and affecting the heat sealing quality.

[0029] In this embodiment, the packaging bag to be sealed is conveyed by the conveyor roller 2. The drive motor 31 rotates, driving the bidirectional lead screw 32 to rotate. The movable seats 34 at both ends of the bidirectional lead screw 32 move on the limiting slide bar 33, so that the guide plate 36 is close to the packaging bag. The rotating adjustment plate 352 causes the threaded rod 356 to rotate. The limiting rod 355 slides in the movable seat 34, causing the lifting plate 354 to move up and down. The connecting rod 351 on the side of the lifting plate 354 drives the height adjustment of the guide plate 36. The opening angle of the rotating guide plate 362 is adjusted to facilitate the packaging bag to move to the middle of the guide frame 361. The guide roller 363 guides the bag to avoid deviation in heat sealing and affect the heat sealing quality. The hydraulic cylinder 9 extends, causing the mounting frame 8 to move down. The hydraulic cylinder 7 extends, causing the heat sealing plate 6 to move. The heat sealing plate 6 heats up to heat seal the opening of the packaging bag. After heat sealing, the conveyor roller 2 conveys the packaging bag to the bottom of the inkjet printing component 5, where the anti-counterfeiting mark is printed.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the coding assembly 5 includes a movable frame 51, a third hydraulic cylinder 52, a fixed frame 53, a fourth hydraulic cylinder 54, a clamping plate 55, a positioning frame 56, and a nozzle 57. The upper two sides of the fixed frame 53 are connected to the third hydraulic cylinder 52, the lower end of the third hydraulic cylinder 52 is connected to the movable frame 51, the two sides of the movable frame 51 are equipped with the fourth hydraulic cylinder 54, the side of the fourth hydraulic cylinder 54 is connected to the clamping plate 55, the lower end of the clamping plate 55 is connected to the positioning frame 56, and the nozzle 57 is arranged in the middle of the positioning frame 56.

[0032] By adopting the above technical solution, after heat sealing, the conveyor roller 2 conveys the packaging bag to the bottom of the inkjet printing assembly 5, the hydraulic cylinder 3 52 extends to move the movable frame 51 downward, the hydraulic cylinder 4 54 extends to drive the clamping plate 55 to move, the clamping plate 55 clamps the packaging bag, and the positioning frame 56 positions it to facilitate the printing of anti-counterfeiting marks by the printhead 57.

[0033] Specifically, the positioning frame 56 and the clamping plate 55 are fastened together, and the side of the clamping plate 55 is flush with the side of the positioning frame 56.

[0034] By adopting the above technical solution, the positioning frame 56 is positioned to facilitate the printing of anti-counterfeiting marks by the printhead 57.

[0035] In this embodiment, after heat sealing, the conveyor roller 2 conveys the packaging bag to the bottom of the inkjet printing assembly 5. The hydraulic cylinder 3 52 extends to move the movable frame 51 downward, and the hydraulic cylinder 4 54 extends to move the clamping plate 55. The clamping plate 55 clamps the packaging bag, and the positioning frame 56 positions it to facilitate the printing of anti-counterfeiting marks by the printhead 57.

[0036] The working principle and usage process of this utility model are as follows: When in use, the packaging bag to be sealed is conveyed by the conveyor roller 2. The drive motor 31 rotates, causing the bidirectional lead screw 32 to rotate. The movable seats 34 at both ends of the bidirectional lead screw 32 move on the limiting slide rod 33, bringing the guide plate 36 closer to the packaging bag. Rotating the adjusting disc 352 causes the threaded rod 356 to rotate, and the limiting rod 355 slides within the movable seat 34, causing the lifting plate 354 to move up and down. The connecting rod 351 on the side of the lifting plate 354 drives the height adjustment of the guide plate 36. Rotating the opening angle of the guide plate 362 facilitates the movement of the packaging bag to the center of the guide frame 361, through which the bag is guided... Roller 363 guides the packaging bag to prevent deviations in heat sealing and ensure quality. Hydraulic cylinder 29 extends to move mounting frame 8 downwards, and hydraulic cylinder 17 extends to move heat sealing plate 6. Heat sealing plate 6 heats and seals the opening of the packaging bag. After heat sealing, conveyor roller 2 transports the packaging bag to below the coding assembly 5, where anti-counterfeiting labels are printed. After heat sealing, conveyor roller 2 transports the packaging bag to below the coding assembly 5, hydraulic cylinder 352 extends to move movable frame 51 downwards, and hydraulic cylinder 454 extends to move clamping plate 55. Clamping plate 55 holds the packaging bag, and positioning frame 56 positions it to facilitate printing of anti-counterfeiting labels by printhead 57.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging bag heat sealing mechanism comprising a frame (1), characterized in that: A conveyor roller (2) is installed in the middle of the frame (1). A guide assembly (3) is provided on one side of the bottom of the frame (1). A stand (4) is provided in the middle of the upper end of the frame (1). Hydraulic cylinders (9) are provided on both sides of the upper end of the stand (4). A mounting frame (8) is connected to the lower end of the hydraulic cylinders (9). Hydraulic cylinders (7) are installed on both sides of the mounting frame (8). A heat sealing plate (6) is installed on the side of the hydraulic cylinders (7). A coding assembly (5) is provided on the side of the upper end of the frame (1) away from the guide assembly (3).

2. The packaging bag heat-sealing mechanism according to claim 1, characterized in that: The guide assembly (3) includes a drive motor (31), a two-way lead screw (32), a limiting slide bar (33), a movable seat (34), a lifting assembly (35), and a guide plate (36). The drive motor (31) is installed on the side of the frame (1). The shaft of the drive motor (31) is connected to the two-way lead screw (32). The movable seat (34) is connected to both ends of the surface of the two-way lead screw (32). The two sides of the movable seat (34) are provided with limiting slide bars (33). The upper end of the movable seat (34) is connected to the lifting assembly (35). The guide plate (36) is installed on the side of the lifting assembly (35).

3. The heat-sealing mechanism for packaging bags according to claim 2, characterized in that: The lifting assembly (35) includes a connecting rod (351), an adjusting plate (352), a bearing seat (353), a lifting plate (354), a limiting rod (355), and a threaded rod (356). The upper end of the movable seat (34) is threaded with the threaded rod (356) in the middle. The upper ends of the movable seat (34) are slidably connected with the limiting rods (355). The upper end of the limiting rod (355) is connected to the lifting plate (354). The upper end of the threaded rod (356) is connected to the lifting plate (354) with the bearing seat (353). The top of the threaded rod (356) is provided with the adjusting plate (352). The side of the lifting plate (354) is connected to the guide plate (36) with the connecting rod (351).

4. The heat-sealing mechanism for packaging bags according to claim 2, characterized in that: The guide plate (36) includes a guide frame (361), a guide plate (362) and guide rollers (363), wherein the guide plate (362) is rotatably connected to the side damping shaft of the guide frame (361), and a plurality of guide rollers (363) are rotatably connected to the middle shaft pin of the guide frame (361).

5. The heat-sealing mechanism for packaging bags according to claim 1, characterized in that: The coding assembly (5) includes a movable frame (51), a hydraulic cylinder three (52), a fixed frame (53), a hydraulic cylinder four (54), a clamping plate (55), a positioning frame (56), and a nozzle (57). The upper two sides of the fixed frame (53) are connected to the hydraulic cylinder three (52), the lower end of the hydraulic cylinder three (52) is connected to the movable frame (51), the two sides of the movable frame (51) are equipped with the hydraulic cylinder four (54), the side of the hydraulic cylinder four (54) is connected to the clamping plate (55), the lower end of the clamping plate (55) is connected to the positioning frame (56), and the nozzle (57) is set in the middle of the positioning frame (56).

6. The heat-sealing mechanism for packaging bags according to claim 5, characterized in that: The positioning frame (56) is fastened to the clamping plate (55), and the side of the clamping plate (55) is flush with the side of the positioning frame (56).

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