Continuous sealing machine for food bag packaging

Abstract

The utility model belongs to the technical field of plastic bag sealing equipment, and discloses a food bag packaging continuous sealing machine which comprises a rack, a groove is formed in the front end of the rack in the length direction of the rack, a connecting strip is connected in the groove in a sliding mode, racks are arranged at the two ends of the interior of the connecting strip, and the opening directions of tooth grooves of the racks are opposite. One side of the rack is meshed with a gear, a moving plate is arranged at the front end of the connecting strip and connected with the gear, the end, away from the moving plate, of the gear is connected with a threaded rod, and the end, away from the gear, of the threaded rod penetrates through the connecting strip; the upper hot sealing strip and the upper cold sealing strip are driven to move synchronously through movement of the movable plate, so that the height positions of the upper hot sealing strip and the upper cold sealing strip are adjusted, and gaps of contact surfaces between the upper hot sealing strip and the lower hot sealing strip are kept consistent; and therefore, the packaging bag is uniformly stressed in the gap between the upper heat sealing strip and the lower heat sealing strip.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic bag sealing equipment, in particular to a continuous sealing machine for food bag packaging. Background Art

[0002] The continuous sealer is suitable for sealing and bagging all types of plastic films, including aluminum foil bags, plastic bags, and composite bags for the pharmaceutical, pesticide, food, daily chemical, and lubricant industries. It is ideal for food, cosmetics, and pharmaceutical factories. It utilizes electronic constant temperature control and a stepless speed-adjustable transmission mechanism to automatically and continuously seal a variety of plastic films. It can also be equipped with an indentation wheel and a counting device as needed. High speed, high efficiency, low loss, low pollution, and automation are the standard features of the continuous sealer.

[0003] According to the existing Chinese utility model patent with the announcement number CN205837330U, a continuous sealing machine is recorded. The sealing machine is provided with heat dissipation holes on both the upper cold sealing strip and the lower cold sealing strip, so that the packaging bag after heat sealing can be cooled more thoroughly after heat dissipation. However, heat dissipation is only performed through a single heat dissipation hole structure, and the heat dissipation efficiency is low, and the effect of more thorough cooling after heat dissipation cannot be achieved. In addition, the heat sealing component and the cold sealing component of the above-mentioned sealing machine are both provided with a self-adjusting device for adjusting the size of the gap, thereby realizing the adjustment of the gap for conveying the packaging bag. However, the self-adjusting device is composed of independently assembled connecting shafts and springs. When adjusting the size of the gap between the heat sealing components, the consistency of the adjustment of multiple connecting shafts cannot be guaranteed, resulting in uneven force on the packaging bag in the gap between the heat sealing components, and further resulting in inconsistent heat sealing effect of the opening of the packaging bag. Utility Model Content

[0004] The purpose of the utility model is to provide a continuous sealing machine for food bag packaging, so as to solve the problem that the single heat dissipation hole structure proposed in the above background technology is used for heat dissipation, the heat dissipation efficiency is low, a more thorough effect of cooling after heat dissipation cannot be achieved, and the consistency of the self-adjusting device during adjustment cannot be guaranteed, which easily leads to uneven force on the packaging bag.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a food bag packaging continuous sealing machine, comprising a frame, a groove is provided at the front end of the frame along the length direction of the frame, a connecting strip is slidably connected in the groove, racks with tooth groove openings in opposite directions are provided at both ends of the interior of the connecting strip, and a gear is meshed with one side of the rack, a movable plate is provided at the front end of the connecting strip, and the movable plate is connected to the gear, a threaded rod is connected to the end of the gear away from the movable plate, and the end of the threaded rod away from the gear passes through the connecting strip, the threaded sleeve is threadedly connected to one end of the threaded rod passing through the connecting strip, and the threaded sleeve conflicts with the rear wall of the connecting strip.

[0006] Preferably, it also includes a heat sealing assembly and a cold sealing assembly arranged at the front end of the frame, the heat sealing assembly includes an upper heat sealing strip and a lower heat sealing strip arranged up and down, the cold sealing assembly includes an upper cold sealing strip and a lower cold sealing strip arranged up and down, and the upper heat sealing strip and the upper cold sealing strip are both fixed on the movable plate.

[0007] Preferably, a heat dissipation component is provided on both the upper cold seal strip and the lower cold seal strip, and the heat dissipation component includes a heat conductive sheet, a first heat dissipation hole opened along the X-axis direction, a second heat dissipation hole opened along the Y-axis direction, a heat conductive column, and a heat dissipation plate. The first heat dissipation hole is connected to the second heat dissipation hole, and the heat conductive column passes through the first heat dissipation hole to connect the heat conductive sheet and the heat dissipation plate.

[0008] Preferably, a heat sink is provided on the top of the heat dissipation plate, and inclined surfaces are provided around the top of the heat dissipation plate.

[0009] Preferably, it also includes a pair of driving wheels arranged in an upper and lower manner at the front end of the frame, two pairs of driven wheels respectively arranged on both sides of the driving wheels, and a pair of embossing wheels, and the driving wheel arranged at the top is connected to the driven wheels on both sides through a synchronous belt, and the driving wheel arranged at the bottom is connected to the driven wheels on both sides through a synchronous belt, and a gap is formed between the upper and lower synchronous belts for the packaging bags to pass through, and the driving wheel, driven wheel and embossing wheel arranged at the top are all connected to the connecting strip.

[0010] Preferably, an adjusting bolt is provided on the connecting bar, and the adjusting bolt is threadedly connected to the frame.

[0011] Preferably, an operating table is provided in front of the frame, and a conveyor belt is connected to the upper end of the operating table.

[0012] Preferably, the heat sealing assembly and the cold sealing assembly are located between the driven wheel and the driving wheel near one end of the feed, and a sealing wheel is provided between the heat sealing assembly and the cold sealing assembly.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The utility model drives the upper heat seal strip and the upper cold seal strip to move synchronously by moving the movable plate, thereby adjusting the height position of the upper heat seal strip and the upper cold seal strip, so that the gap between the contact surface of the upper heat seal strip and the lower heat seal strip remains consistent, so that the force on the packaging bag in the gap between the upper heat seal strip and the lower heat seal strip is uniform, and further the heat sealing effect of the opening of the packaging bag is consistent.

[0015] (2) The utility model is provided with a heat dissipation structure consisting of a heat conducting sheet, heat dissipation holes, heat conducting columns and a heat dissipation plate to dissipate heat from the packaging bag after heat sealing. The heat is conducted to the heat dissipation plate through the heat conducting sheet and the heat conducting columns, and the heat is dissipated through the heat dissipation sheet on the heat dissipation plate. At the same time, the heat dissipation holes cooperate with each other to enhance the circulation of air around the heat conducting columns, thereby further improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the upper cold seal strip of the utility model;

[0018] Figure 3 This is a top view of the heat dissipation plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the cooperation between the movable plate and the connecting strip of the utility model;

[0020] Figure 5 This is a front view of the connecting strip of the utility model;

[0021] Figure 6 This is a rear view of the connecting strip of the utility model;

[0022] In the figure: 1. Frame; 2. Connecting bar; 3. Rack; 4. Gear; 5. Moving plate; 6. Threaded rod; 7. Threaded sleeve; 8. Upper heat seal strip; 9. Lower heat seal strip; 10. Upper cold seal strip; 11. Lower cold seal strip; 12. Heat conducting plate; 13. First heat dissipation hole; 14. Second heat dissipation hole; 15. Heat conducting column; 16. Heat dissipation plate; 17. Driving wheel; 18. Driven wheel; 19. Imprinting wheel; 20. Adjusting bolt; 21. Operating table; 22. Sealing wheel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-6As shown, the utility model provides a technical solution: a food bag packaging continuous sealing machine, comprising a frame 1, a groove is opened at the front end of the frame 1 along the length direction of the frame 1, a connecting bar 2 is slidably connected in the groove, racks 3 with tooth groove openings facing each other are provided at both ends of the connecting bar 2, and a gear 4 is meshed with one side of the rack 3, a movable plate 5 is provided at the front end of the connecting bar 2, and the movable plate 5 is connected to the gear 4, the end of the gear 4 away from the movable plate 5 is connected to a threaded rod 6, and the end of the threaded rod 6 away from the gear 4 passes through the connecting bar 2, the threaded rod 6 passes through one end of the connecting bar 2 and is threadedly connected to a threaded sleeve 7, and the threaded sleeve 7 conflicts with the rear wall of the connecting bar 2;

[0025] It also includes a heat sealing assembly and a cold sealing assembly arranged at the front end of the frame 1. The heat sealing assembly includes an upper heat sealing strip 8 and a lower heat sealing strip 9 arranged up and down. The cold sealing assembly includes an upper cold sealing strip 10 and a lower cold sealing strip 11 arranged up and down. The upper heat sealing strip 8 and the upper cold sealing strip 10 are both fixed on the movable plate 5.

[0026] In the above technical solution, by loosening the threaded sleeve 7, the threaded sleeve 7 is separated from the rear wall of the connecting strip 2, and the movable plate 5 is moved. The gear 4 rotates and moves along the rack 3 to adjust the gap between the upper heat sealing strip 8 and the lower heat sealing strip 9. Then, the threaded sleeve 7 is tightened so that the threaded sleeve 7 contacts the rear wall of the connecting strip 2, and the movable plate 5 is fixed in the moved position.

[0027] Furthermore, two movable plates 5 can be set, and the upper heat sealing strip 8 and the upper cold sealing strip 10 are respectively fixed on the two movable plates 5, and the two movable plates 5 are connected to the connecting strip 2 through structures such as gears 4 and racks 3 to achieve step-by-step adjustment of the gap between the upper heat sealing strip 8 and the lower heat sealing strip 9, and the gap between the upper cold sealing strip 10 and the lower cold sealing strip 11.

[0028] like Figure 2-3 As shown, both the upper cold seal bar 10 and the lower cold seal bar 11 are provided with a heat dissipation assembly, which includes a heat conducting sheet 12, a first heat dissipation hole 13 opened along the X-axis direction, a second heat dissipation hole 14 opened along the Y-axis direction, a heat conducting column 15, and a heat dissipation plate 16. The first heat dissipation hole 13 is connected to the second heat dissipation hole 14, and the heat conducting column 15 passes through the first heat dissipation hole 13 to connect the heat conducting sheet 12 and the heat dissipation plate 16.

[0029] A heat sink is provided on the top of the heat sink 16 , and inclined surfaces are provided around the top of the heat sink 16 , which is beneficial to increase the contact area between the heat sink 16 and the air, thereby improving the heat dissipation efficiency.

[0030] In the above technical solution, heat is conducted to the heat sink 16 through the heat conducting sheet 12 and the heat conducting column 15, and the heat is dissipated through the heat sink on the heat sink 16. At the same time, the first heat dissipation hole 13 and the second heat dissipation hole 14 are used to enhance the circulation of air around the heat conducting column 15, thereby further improving the heat dissipation efficiency.

[0031] like Figure 1 As shown, the machine frame 1 further includes a pair of driving wheels 17 arranged in an upper and lower manner at the front end thereof, two pairs of driven wheels 18 respectively arranged on both sides of the driving wheel 17, and a pair of embossing wheels 19. The driving wheel 17 arranged at the top is connected to the driven wheels 18 on both sides by a synchronous belt, and the driving wheel 17 arranged at the bottom is connected to the driven wheels 18 on both sides by a synchronous belt. A gap is formed between the upper and lower synchronous belts for the packaging bags to pass through. The driving wheel 17, the driven wheel 18 and the embossing wheel 19 arranged at the top are all connected to the connecting bar 2.

[0032] The connecting bar 2 is provided with an adjusting bolt 20, which is threadedly connected to the frame 1;

[0033] An operating table 21 is provided in front of the frame 1, and a conveyor belt is connected to the upper end of the operating table 21;

[0034] The sealing assembly and the cold sealing assembly are located between the driven wheel 18 and the driving wheel 17 near one end of the feed, and a sealing wheel 22 is provided between the hot sealing assembly and the cold sealing assembly.

[0035] When sealing, the staff brings the packaging bag in from the right side, and brings the packaging bag into the heat sealing assembly through the gap between the upper and lower synchronous belts for heat sealing, and then uses the sealing wheel 22 to strengthen the sealing effect, and then enters the cold sealing assembly for cooling; then the synchronous belt is turned so that the clamping position of the packaging bag deviates from the seal, and the position of the embossing wheel 19 is exactly at the seal, and the seal is pressed again to achieve a better sealing effect.

[0036] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food bag packaging continuous sealing machine, comprising a frame (1), characterized in that: The front end of the frame (1) is provided with a groove along the length direction of the frame (1), and a connecting bar (2) is slidably connected in the groove. Racks (3) with tooth groove openings facing each other are provided at both ends of the connecting bar (2), and a gear (4) is meshed on one side of the rack (3). A movable plate (5) is provided at the front end of the connecting bar (2), and the movable plate (5) is connected to the gear (4). The end of the gear (4) away from the movable plate (5) is connected to a threaded rod (6), and the end of the threaded rod (6) away from the gear (4) passes through the connecting bar (2). The end of the threaded rod (6) passing through the connecting bar (2) is threadedly connected to a threaded sleeve (7), and the threaded sleeve (7) contacts the rear wall of the connecting bar (2).

2. A food bag packaging continuous sealing machine according to claim 1, characterized in that: It also includes a heat sealing assembly and a cold sealing assembly arranged at the front end of the frame (1), the heat sealing assembly including an upper heat sealing strip (8) and a lower heat sealing strip (9) arranged above and below, and the cold sealing assembly including an upper cold sealing strip (10) and a lower cold sealing strip (11) arranged above and below, and the upper heat sealing strip (8) and the upper cold sealing strip (10) are both fixed on the movable plate (5).

3. The food bag packaging continuous sealing machine according to claim 2, characterized in that: The upper cold seal strip (10) and the lower cold seal strip (11) are both provided with a heat dissipation assembly, the heat dissipation assembly comprising a heat conducting sheet (12), a first heat dissipation hole (13) opened along the X-axis direction, a second heat dissipation hole (14) opened along the Y-axis direction, a heat conducting column (15), and a heat dissipation plate (16), wherein the first heat dissipation hole (13) is connected to the second heat dissipation hole (14).

4. A food bag packaging continuous sealing machine according to claim 3, characterized in that: A heat sink is provided on the top of the heat dissipation plate (16), and inclined surfaces are provided around the top of the heat dissipation plate (16).

5. The food bag packaging continuous sealing machine according to claim 2, characterized in that: The machine also includes a pair of driving wheels (17) arranged in an upper and lower manner at the front end of the frame (1), two pairs of driven wheels (18) respectively arranged on both sides of the driving wheel (17), and a pair of embossing wheels (19), wherein the driving wheel (17) arranged on the top is connected to the driven wheels (18) on both sides through a synchronous belt, and the driving wheel (17) arranged on the bottom is connected to the driven wheels (18) on both sides through a synchronous belt, and a gap is formed between the upper and lower synchronous belts for the packaging bag to pass through, and the driving wheel (17), the driven wheel (18) and the embossing wheel (19) arranged on the top are all connected to the connecting bar (2).

6. The food bag packaging continuous sealing machine according to claim 5, characterized in that: An adjusting bolt (20) is provided on the connecting bar (2), and the adjusting bolt (20) is threadedly connected to the frame (1).

7. The food bag packaging continuous sealing machine according to claim 2, characterized in that: An operating platform (21) is provided in front of the frame (1), and a conveyor belt is connected to the upper end of the operating platform (21).

8. The food bag packaging continuous sealing machine according to claim 5, characterized in that: The heat sealing assembly and the cold sealing assembly are located between a driven wheel (18) and a driving wheel (17) near one end of the feed, and a sealing wheel (22) is provided between the heat sealing assembly and the cold sealing assembly.

9. The food bag packaging continuous sealing machine according to claim 3, characterized in that: The heat-conducting column (15) passes through the first heat-dissipating hole (13) to connect the heat-conducting sheet (12) and the heat-dissipating plate (16).

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