Sealing device of automatic packaging machine

Abstract

The utility model belongs to the technical field of packaging sealing, and discloses a sealing device of an automatic packaging machine, a sealing mechanism comprises a heat sealing assembly and an adjusting assembly, the heat sealing assembly comprises a fixed clamping plate and a movable clamping plate, and a group of heat sealing strips used for sealing packaging bags are respectively arranged below the opposite surfaces of the movable clamping plate and the fixed clamping plate. Compared with the prior art, the packaging bag sealing device has the advantages that the sealing mechanism is designed and adopts the design that the heat sealing strips are arranged on the lower portion, so that packaging bags can pass through the space between the two sets of heat sealing strips in the conveying process of a production line. When the packaging bag reaches the sealing position, the air cylinder drives the movable clamping plate to move towards the fixed clamping plate. In the process, the movable clamping plate and the fixed clamping plate are matched with each other to clamp the packaging bag, meanwhile, the heat sealing strip is heated to conduct heat sealing on the packaging bag, and when the threaded lead screw rotates, the inner sliding block can slide along the inner side of the vertical frame to drive the heat sealing assembly to synchronously adjust the height, so that the sealing mechanism is rapidly matched with a new packaging bag.

Description

Technical Field

[0001] This utility model belongs to the field of packaging sealing technology, and specifically relates to a sealing device for an automated packaging machine. Background Technology

[0002] In the field of modern automated packaging production, the sealing device of automated packaging machine is used to tightly seal the packaging material through heat sealing, pressure sealing and other technologies, so as to ensure that the product is not affected by external factors during storage, transportation and sales and maintain product quality.

[0003] However, many automated packaging machines currently use a fixed-position sealing design. Since different types of products require packaging bags of varying heights, from small snack bags in the food industry to larger laundry detergent bags in the daily chemical industry, the height specifications differ. At the same time, production lines often lack the flexibility to adjust height due to overall architecture and layout limitations. Therefore, when changing to packaging bags of different heights, the sealing device must be disassembled and reinstalled. This process is time-consuming and labor-intensive, requiring precise removal of the existing device and relocation of the installation position, making it cumbersome and impacting work efficiency.

[0004] To address the aforementioned issues, this application proposes a sealing device for an automated packaging machine. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a sealing device for an automated packaging machine. By designing a sealing mechanism with a bottom-mounted heat-sealing strip, the packaging bag can pass between two sets of heat-sealing strips during production line transport. When the packaging bag reaches the sealing position, a cylinder drives a movable clamping plate towards a fixed clamping plate via a piston rod. During this process, the movable and fixed clamping plates cooperate to tightly hold the packaging bag. Simultaneously, the heat-sealing strip heats up to seal the packaging bag, and the rotation of the threaded screw causes the inner slider to slide along the inner side of the frame, synchronously adjusting the height of the heat-sealing assembly. This allows the sealing mechanism to quickly adapt to new packaging bags, solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A sealing device for an automated packaging machine includes: a sealing mechanism comprising a heat-sealing component and an adjusting component; the heat-sealing component includes a fixed clamping plate and a movable clamping plate; a set of heat-sealing strips for sealing packaging bags are respectively installed below the opposite surfaces of the movable clamping plate and the fixed clamping plate; a cylinder is provided on one side of the fixed clamping plate to drive the movable clamping plate to move towards the fixed clamping plate to clamp and seal the packaging bag; the adjusting component includes a vertical frame; a threaded screw is installed inside the vertical frame; an inner slider is threadedly connected above the threaded screw and can slide along the inner side of the vertical frame to adjust the sealing height of the heat-sealing component; a linkage plate is installed in front of the inner slider; and an odor removal component includes a synchronizing rod that can move synchronously with the inner slider; a crossbar is provided in front of the synchronizing rod; multiple sets of air inlets are opened inside the crossbar; an air intake fan for extracting heat-sealing gas is installed in each set of air inlets; a screw cylinder is threadedly connected above the air inlet; an adsorption cylinder is installed above the screw cylinder; and activated carbon plates for adsorbing odors in the gas are installed on the four sides and the upper surface of the adsorption cylinder.

[0008] In a preferred embodiment, the movable clamping plate is located in front of the fixed clamping plate, the fixed clamping plate is fixedly connected to the linkage plate, the cylinder is fixed behind the fixed clamping plate, and the cylinder is fixedly connected to the movable clamping plate through a piston rod, and the rear end of the cylinder is fixedly connected to the linkage plate.

[0009] In a preferred embodiment, a set of guide rods is installed on each of the two sides above the movable clamping plate. The rear ends of the two sets of guide rods pass through the fixed clamping plate. A spring is sleeved on the outer side of the front end of the guide rod, and the front end of the spring is fixedly connected to the movable clamping plate, and the rear end is fixedly connected to the fixed clamping plate.

[0010] As a preferred embodiment, a set of auxiliary sliding grooves are respectively provided on both sides of the upright frame, and an L-shaped auxiliary slider is slidably provided in the auxiliary sliding groove, and the front end of the auxiliary slider is fixedly connected to the linkage plate.

[0011] In a preferred embodiment, a drive motor is installed above the upright frame, and the output shaft of the drive motor is fixedly connected to a threaded screw. A mounting plate is connected below the upright frame, and four sets of mounting holes are provided on the upper surface of the mounting plate.

[0012] In a preferred embodiment, the synchronizing rod has an L-shaped structure, and the lower end of the synchronizing rod is slidably disposed inside the upright frame and threadedly connected to the threaded screw.

[0013] In a preferred embodiment, a top rod is fixedly installed on the rear side of the crossbar, and the rear end of the top rod is fixedly connected to the upper end of the synchronizing rod.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. The sealing mechanism design improves the efficiency and adaptability of packaging operations. This sealing mechanism employs a bottom-mounted heat-sealing strip design, allowing the packaging bag to pass between two sets of heat-sealing strips during the uniform conveying process of the automated production line. When the packaging bag reaches the sealing position, the cylinder, via a piston rod, moves the movable clamping plate towards the fixed clamping plate. During this process, the movable and fixed clamping plates cooperate to tightly hold the packaging bag. Simultaneously, the heat-sealing strip installed below the opposite side of the clamping plates heats up to heat-seal the packaging bag. Furthermore, the sealing mechanism includes an adjustment component consisting of a threaded screw and an inner slider. When the threaded screw rotates, the inner slider slides along the inner side of the frame, synchronously adjusting the height of the heat-sealing component. This allows for flexible height adjustment of the heat-sealing component in a short time, enabling the sealing mechanism to quickly adapt to new packaging bags and rapidly restore efficient packaging operations. Compared to existing fixed-position sealing devices, this design eliminates the need for cumbersome disassembly and assembly processes when facing changes in packaging bag height, effectively reducing downtime and improving production efficiency.

[0016] 2. By designing the odor removal component, harmful gases are often generated during the heat sealing process of packaging bags. When the packaging bags are heat-sealed, the suction fan draws in these harmful gases generated during the heat sealing process through the air inlet. Guided by the suction fan, these gases enter the adsorption cylinder, passing through the activated carbon plate. The activated carbon plate filters and adsorbs the inhaled gases. When harmful gases pass through the activated carbon plate, odor molecules and harmful substances are adsorbed into the pores of the activated carbon, thus purifying the gas and effectively removing odors. For easy maintenance and to maintain the odor removal effect continuously, a threaded connection design is used between the adsorption cylinder and the air inlet. As the activated carbon plate becomes saturated, its adsorption effect gradually decreases. At this point, the operator can easily remove the adsorption cylinder from the air inlet by simply rotating it. Then, a new adsorption cylinder can be quickly replaced. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a sealing device for an automated packaging machine according to the present invention;

[0019] Figure 2 This is a structural schematic diagram of the sealing device of an automated packaging machine according to this utility model from another perspective;

[0020] Figure 3This is a structural schematic diagram of the sealing device of an automated packaging machine according to the present invention, viewed from an upward angle.

[0021] Figure 4 for Figure 2 A magnified structural diagram of part A;

[0022] Figure 5 for Figure 2 A magnified structural diagram of part B.

[0023] In the diagram, 1. Heat sealing assembly; 11. Movable clamping plate; 12. Fixed clamping plate; 13. Guide rod; 14. Spring; 15. Cylinder; 16. Linkage plate; 17. Heat sealing strip; 2. Adjustment assembly; 21. Vertical frame; 22. Drive motor; 23. Mounting plate; 24. Inner slider; 25. Auxiliary slide groove; 26. Threaded screw; 27. Auxiliary slider; 3. Odor removal assembly; 31. Top rod; 32. Cross rod; 33. Synchronizing rod; 34. Adsorption cylinder; 35. Air inlet; 36. Suction fan; 37. Screw barrel. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 5 As shown: A sealing device for an automated packaging machine includes: a sealing mechanism, comprising a heat sealing assembly 1 and an adjusting assembly 2. The heat sealing assembly 1 includes a fixed clamping plate 12 and a movable clamping plate 11. A set of heat sealing strips 17 for sealing the packaging bag are respectively installed below the opposite surfaces of the movable clamping plate 11 and the fixed clamping plate 12. A cylinder 15 is provided on one side of the fixed clamping plate 12 to drive the movable clamping plate 11 toward the fixed clamping plate 12 to clamp and seal the packaging bag. The adjusting assembly 2 includes a vertical frame 21, in which a threaded rod 26 is installed. The threaded rod 26 is threadedly connected to the upper part of the threaded rod 26. The inner slider 24 of the heat-sealing assembly 1 is slidably driven by the inner side of the frame 21 to adjust the sealing height. A linkage plate 16 is installed in front of the inner slider 24. The deodorizing assembly 3 includes a synchronizing rod 33 that can move synchronously with the inner slider 24. A crossbar 32 is provided in front of the synchronizing rod 33. Multiple sets of air inlets 35 are opened in the crossbar 32. An air intake fan 36 for extracting heat-sealing gas is installed in each set of air inlets 35. A screw cylinder 37 is threadedly connected above the air inlet 35. An adsorption cylinder 34 is installed above the screw cylinder 37. Activated carbon plates for adsorbing odors in the gas are installed on the four sides and the upper surface of the adsorption cylinder 34.

[0026] like Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown: the movable clamping plate 11 is located in front of the fixed clamping plate 12, the fixed clamping plate 12 is fixedly connected to the linkage plate 16, the cylinder 15 is fixed behind the fixed clamping plate 12, and the cylinder 15 is fixedly connected to the movable clamping plate 11 through the piston rod, and the rear end of the cylinder 15 is fixedly connected to the linkage plate 16.

[0027] like Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown: A set of guide rods 13 are installed on each of the two sides above the movable clamping plate 11. The rear ends of the two sets of guide rods 13 pass through the fixed clamping plate 12. A spring 14 is sleeved on the outer side of the front end of the guide rod 13. The front end of the spring 14 is fixedly connected to the movable clamping plate 11, and the rear end is fixedly connected to the fixed clamping plate 12. When the cylinder 15 drives the movable clamping plate 11 to move towards the fixed clamping plate 12 through the piston rod, the movable clamping plate 11 can drive the guide rods 13 to slide along the passage of the fixed clamping plate 12.

[0028] like Figures 1 to 2 As shown: A set of auxiliary sliding grooves 25 are respectively opened on both sides of the frame 21. An L-shaped auxiliary slider 27 is slidably installed in the auxiliary sliding groove 25, and the front end of the auxiliary slider 27 is fixedly connected to the linkage plate 16. When the linkage plate 16 is raised and lowered, the auxiliary slider 27 can slide along the path of the auxiliary sliding groove 25, thereby improving the stability of the heat sealing assembly 1.

[0029] like Figures 1 to 3 As shown: A drive motor 22 is installed on the top of the frame 21, and the output shaft of the drive motor 22 is fixedly connected to the threaded screw 26. A mounting plate 23 is connected to the bottom of the frame 21, and four sets of mounting holes are opened on the upper surface of the mounting plate 23. The device can be fixed on the packaging machine by using bolts through the mounting holes on the mounting plate 23.

[0030] like Figures 1 to 2 As shown: the synchronizing rod 33 has an L-shaped structure, and the lower end of the synchronizing rod 33 is slidably disposed inside the vertical frame 21 and threadedly connected to the threaded rod 26.

[0031] like Figures 1 to 3 As shown: A top rod 31 is fixedly installed on the rear side of the crossbar 32, and the rear end of the top rod 31 is fixedly connected to the upper end of the synchronizing rod 33.

[0032] In practical use, the working principle of this utility model is as follows:

[0033] Before the sealing device of the automated packaging machine is put into operation, it is fixed to the packaging machine by bolts passing through the mounting holes on the mounting plate 23. If the sealing height needs to be adjusted, the drive motor 22 is started, and its output shaft drives the threaded screw 26 to rotate, causing the inner slider 24, which is threadedly connected to the threaded screw 26, to slide along the inner side of the frame 21. The linkage plate 16 in front of the inner slider 24 is connected to the fixed clamping plate 12 of the heat sealing assembly 1, thereby driving the heat sealing assembly 1 to move up and down to adjust the sealing height. At the same time, the auxiliary sliders 27 in the auxiliary sliding grooves 25 on both sides of the frame 21 are fixedly connected to the linkage plate 16. When the linkage plate 16 rises and falls, the auxiliary sliders 27 slide along the path of the auxiliary sliding grooves 25, further ensuring the stability of the rise and fall of the heat sealing assembly 1. When the machine starts working, the packaging bag is conveyed by the automatic production line to the space between the movable clamping plate 11 and the fixed clamping plate 12. At this time, the cylinder 15 is started, and the piston rod drives the movable clamping plate 11 to move towards the fixed clamping plate 12. The movable clamp 11 drives the guide rod 13 to slide along the through-hole of the fixed clamp 12. When the cylinder 15 drives the movable clamp 11 to approach the fixed clamp 12, the movable clamp 11 and the fixed clamp 12 cooperate to clamp the packaging bag. At the same time, the heat sealing strip 17 installed below the opposite side of the clamps heats up to heat seal the packaging bag. At the same time, the spring 14 is compressed to buffer the impact force generated when the movable clamp 11 contacts the fixed clamp 12, so as to avoid damage to the heat sealing strip 17 or the packaging bag due to excessive impact force. When the heat sealing is completed, the piston rod of the cylinder 15 extends and drives the movable clamp 11 to return to its position, and the spring 14 rebounds.

[0034] Harmful gases are generated during the heat sealing process. Since the synchronizing rod 33 has an L-shaped structure, its lower end is slidably located inside the upright frame 21 and threadedly connected to the threaded screw 26. Therefore, when the inner slider 24 moves under the drive of the threaded screw 26, the threaded screw 26 can drive the synchronizing rod 33 to slide synchronously. This, in turn, drives the crossbar 32 and the suction fan 36 to adjust their positions through the top rod 31, ensuring that the heat sealing component 1 and the deodorizing component 3 always maintain a suitable distance. This avoids the heat sealing component 1 being too far away or too close to the deodorizing component 3, which would result in poor deodorization. The suction fan 36 can draw in the gas generated during heat sealing through the air inlet 35. The gas enters the adsorption cylinder 34 through the screw cylinder 37 and is adsorbed and filtered by the activated carbon plates on the four sides and the upper surface of the adsorption cylinder 34. The odor molecules and harmful substances are adsorbed in the pores of the activated carbon, thereby purifying the gas. As the activated carbon plate becomes saturated, its adsorption effect will gradually decrease. At this point, the operator only needs to easily rotate the adsorption cylinder 34 to disengage the screw cylinder 37 from the air inlet 35, thus removing the adsorption cylinder 34 from the air inlet 35. Then, a new adsorption cylinder 34 can be quickly replaced.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing device for an automated packaging machine, characterized in that, include: The sealing mechanism includes a heat sealing assembly (1) and an adjustment assembly (2). The heat sealing assembly (1) includes a fixed clamping plate (12) and a movable clamping plate (11). A set of heat sealing strips (17) for sealing the packaging bag are respectively installed below the opposite surfaces of the movable clamping plate (11) and the fixed clamping plate (12). A cylinder (15) is provided on one side of the fixed clamping plate (12) to drive the movable clamping plate (11) to move toward the fixed clamping plate (12) to clamp and seal the packaging bag. Adjustment component (2) includes a frame (21), a threaded screw (26) is installed inside the frame (21), and an inner slider (24) is threadedly connected above the threaded screw (26) to slide along the inner side of the frame (21) to drive the heat sealing component (1) to adjust the sealing height. A linkage plate (16) is installed in front of the inner slider (24). The deodorizing component (3) includes a synchronizing rod (33) that can move synchronously with the inner slider (24). A crossbar (32) is provided on the front side of the synchronizing rod (33). Multiple sets of air inlets (35) are opened in the crossbar (32). An air intake fan (36) for extracting heat-sealing gas is installed in each set of air inlets (35). A screw cylinder (37) is threadedly connected above the air inlet (35). An adsorption cylinder (34) is installed above the screw cylinder (37). Activated carbon plates for adsorbing odors in the gas are installed on the four sides and the upper surface of the adsorption cylinder (34).

2. The sealing device of an automated packaging machine as described in claim 1, characterized in that: The movable clamping plate (11) is located in front of the fixed clamping plate (12). The fixed clamping plate (12) is fixedly connected to the linkage plate (16). The cylinder (15) is fixed behind the fixed clamping plate (12) and is fixedly connected to the movable clamping plate (11) through the piston rod. The rear end of the cylinder (15) is fixedly connected to the linkage plate (16).

3. The sealing device for an automated packaging machine as described in claim 2, characterized in that: A set of guide rods (13) is installed on each of the two sides above the movable clamping plate (11). The rear ends of the two sets of guide rods (13) pass through the fixed clamping plate (12). A spring (14) is sleeved on the outer side of the front end of the guide rod (13). The front end of the spring (14) is fixedly connected to the movable clamping plate (11), and the rear end is fixedly connected to the fixed clamping plate (12).

4. The sealing device for an automated packaging machine as described in claim 3, characterized in that: A set of auxiliary sliding grooves (25) are respectively provided on both sides of the upright frame (21). An L-shaped auxiliary slider (27) is slidably provided in the auxiliary sliding groove (25), and the front end of the auxiliary slider (27) is fixedly connected to the linkage plate (16).

5. The sealing device for an automated packaging machine as described in claim 4, characterized in that: A drive motor (22) is installed above the frame (21), and the output shaft of the drive motor (22) is fixedly connected to the threaded screw (26). A mounting plate (23) is connected below the frame (21), and four sets of mounting holes are opened on the upper surface of the mounting plate (23).

6. The sealing device of an automated packaging machine as described in claim 1, characterized in that: The synchronizing rod (33) has an L-shaped structure, and the lower end of the synchronizing rod (33) is slidably disposed inside the upright frame (21) and threadedly connected to the threaded screw (26).

7. The sealing device for an automated packaging machine as described in claim 6, characterized in that: A top rod (31) is fixedly installed on the rear side of the crossbar (32), and the rear end of the top rod (31) is fixedly connected to the upper end of the synchronizing rod (33).

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