A hot-pressing edge sealing device for laundry detergent packaging bag production

Abstract

The utility model relates to the production technology field of packing bag, concretely is a kind of hot-pressing edge sealing device for washing powder packing bag production, including hot-pressing platform, its top right side is fixedly connected with rack, and lifting plate is set up through guide mechanism liftable on rack, and the bottom end middle part of lifting plate is fixedly connected with hot-pressing plate;Eccentric disc, it is set to the upper end right side of rack, adjusting mechanism is set on eccentric disc;Leveling mechanism, it is symmetrically set to the left and right sides of rack.The utility model realizes the accurate adjustment of the radial position of arc block on eccentric disc by the cooperation of adjusting screw and sliding block.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, specifically a hot-press sealing device for producing laundry detergent packaging bags. Background Technology

[0002] Packaging bags are bags used to package various items, making it convenient to transport and store goods during production and distribution. Currently, during the processing of packaging bags, it is necessary to seal the edges of the bags to facilitate subsequent bagging.

[0003] As disclosed in patent announcement number CN217944508U, a heat-sealing device for packaging bag production with adjustable pressure includes two symmetrical screw blocks. A gear is fixed to the bottom surface of each screw block, and a threaded hole is formed on the top surface of each screw block, through which the gear passes. The beneficial effects of this invention, achieved by adopting the above technical solution, are: facilitating the adjustment of the pressure exerted by the heat-sealing knife on the packaging bag, easily meeting the production needs of packaging bags of different thicknesses, and helping to ensure the quality of the heat-sealing edge of the packaging bag.

[0004] Although the aforementioned patent includes gears and toothed belts, gears are typically used for meshing transmission with other gears. In this patent, two gears attempt to rotate synchronously in opposite directions via a flexible "toothed belt." However, when the toothed belt meshes with the gears, it causes meshing interference, resulting in unstable transmission, poor synchronization accuracy, and even damage to parts. Furthermore, after long-term use, the toothed belt may loosen or wear, further affecting the stability and accuracy of pressure regulation. Utility Model Content

[0005] The purpose of this invention is to provide a hot-press sealing device for the production of laundry detergent packaging bags, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A heat-sealing device for producing laundry detergent packaging bags, comprising: The hot press table has a frame fixedly connected to its top right side. A lifting plate is installed on the frame via a guide mechanism. A hot press plate is fixedly connected to the bottom center of the lifting plate. An eccentric disc is located on the upper right side of the frame, and an adjustment mechanism is provided on the eccentric disc; The leveling mechanism is symmetrically arranged on the left and right sides of the frame.

[0007] Preferably, the guiding mechanism includes dovetail grooves symmetrically opened on the inner walls of both sides of the frame, and dovetail blocks symmetrically fixedly connected to the outer sides of the lifting plate and slidingly engaged with the dovetail grooves. A guide rod is fixedly connected to the top of both sides of the lifting plate. A movable hole is opened through both sides of the top of the frame and slidably connected to the guide rod. A retaining ring is fixedly connected to the outer periphery of the top of the guide rod. A spring is movably sleeved on the outside of the guide rod, and the two ends of the spring abut against the retaining ring and the frame, respectively. Preferably, the adjustment mechanism includes a mounting bracket fixedly connected to the middle left side of the top of the frame, and a sliding groove opened on the outside right side of the eccentric disk. A motor is fixedly connected to the outside of the mounting bracket, and the output shaft of the motor is fixedly connected to the eccentric disk. A sliding block is slidably connected inside the sliding groove. A shaft seat is fixedly connected to the upper end of the sliding groove. An adjusting screw is threadedly connected to the middle of the shaft seat. The output shaft of the adjusting screw is rotatably connected to the sliding block through a bearing. An arc-shaped block is fixedly connected to the bottom end of the sliding block. Scale bars are fixedly connected to both sides of the eccentric disk located in the sliding groove. A pointer matching the scale bars is fixedly connected to the top front of the sliding block. Preferably, the adjustment mechanism further includes guide grooves symmetrically opened on both sides of the sliding groove, and guide blocks fixedly connected to the outer walls on both sides of the sliding block and slidably connected to the guide grooves. A drive plate that slides in contact with the arc-shaped block is fixedly connected to the middle right side of the lifting plate. Preferably, the leveling mechanism includes lifting slots symmetrically opened on both sides of the bottom end of the frame, and lifting blocks that slide up and down inside the lifting slots. A fixed frame is fixedly connected between the two ends of the two lifting blocks. An electric push rod is fixedly connected to both sides of the top end of the frame, and the output shaft of the electric push rod is fixedly connected to the lifting block. Preferably, the leveling mechanism further includes two electric push rods symmetrically and fixedly connected to the outside of the opposite sides of the two fixed frames. Each of the two fixed frames is provided with a roller frame on the opposite side. A leveling roller is rotatably connected to the bottom of the roller frame through a bearing. The output shaft of the electric push rod is fixedly connected to the back of the fixed frame. Guide rods are fixedly connected to both ends of the back of the roller frame. Movable holes are opened through both ends of the fixed frame and are slidably connected to the guide rods.

[0008] Compared with the prior art, the beneficial effects of this utility model are: This heat-sealing device for producing laundry detergent packaging bags achieves precise adjustment of the radial position of the arc-shaped block on the eccentric disc through the coordinated use of the adjusting screw and the sliding block.

[0009] This heat-sealing device for producing laundry detergent packaging bags, through the combined use of electric push rod one, electric push rod two and leveling roller, realizes the leveling process of pressing the packaging bag from top to bottom and then flattening it from the center to both sides, solving the problem of uneven sealing area caused by incomplete leveling. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall main structure of this utility model; Figure 2 This is a schematic diagram of the leveling roller installation structure of this utility model; Figure 3 This is a schematic diagram of the sliding block mounting structure of this utility model; Figure 4 For the present utility model Figure 1 Enlarged diagram of point A in the middle.

[0011] In the diagram: 1. Hot press table; 2. Frame; 3. Lifting plate; 4. Eccentric disc; 5. Dovetail groove; 6. Dovetail block; 7. Guide rod one; 8. Movable hole one; 9. Retaining ring; 10. Spring; 11. Mounting bracket; 12. Sliding groove; 13. Motor; 14. Sliding block; 15. Shaft seat; 16. Adjusting screw; 17. Arc block; 18. Scale bar; 19. Pointer; 20. Guide groove; 21. Guide block; 22. Drive plate; 23. Lifting groove; 24. Lifting block; 25. Fixed frame; 26. Electric push rod one; 27. Electric push rod two; 28. Roller frame; 29. ​​Leveling roller; 30. Guide rod two; 31. Movable hole two; 32. Hot press plate. Detailed Implementation

[0012] 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.

[0013] like Figure 1-4 As shown, this utility model provides a technical solution: A hot-press sealing device for producing laundry detergent packaging bags includes a hot-press table 1, with a frame 2 fixedly connected to its top right side. A lifting plate 3 is vertically mounted on the frame 2 via a guide mechanism. A hot-press plate 32 is fixedly connected to the bottom center of the lifting plate 3. The guide mechanism includes dovetail grooves 5 symmetrically formed on the inner walls of both sides of the frame 2, and dovetail blocks 6 symmetrically fixedly connected to the outer sides of the lifting plate 3 and slidingly engaged with the dovetail grooves 5. Guide rods 7 are fixedly connected to the top of both sides of the lifting plate 3. Movable holes 8 are slidably connected to the guide rods 7 on both sides of the top of the frame 2. A retaining ring 9 is fixedly connected to the outer periphery of the top of the guide rod 7, and a spring 1 is movably sleeved on the outside of the guide rod 7. 0. The two ends of spring 10 abut against retaining ring 9 and frame 2 respectively; eccentric disk 4 is located on the upper right side of frame 2. An adjustment mechanism is provided on eccentric disk 4. The adjustment mechanism includes a mounting bracket 11 fixedly connected to the middle left side of the top of frame 2, and a sliding groove 12 opened on the outer right side of eccentric disk 4. A motor 13 is fixedly connected to the outer side of mounting bracket 11. The output shaft of motor 13 is fixedly connected to eccentric disk 4. A sliding block 14 is slidably connected inside sliding groove 12. A bearing 15 is fixedly connected to the upper end of sliding groove 12. An adjusting screw 16 is threadedly connected to the middle of bearing 15. The output shaft of adjusting screw 16 is rotatably connected to sliding block 14 through bearing. The bottom end of sliding block 14 is fixedly... An arc-shaped block 17 is fixedly connected to the sliding groove 12. A scale bar 18 is fixedly connected to both sides of the eccentric disk 4. A pointer 19 matching the scale bar 18 is fixedly connected to the top front of the sliding block 14. The adjustment mechanism also includes guide grooves 20 symmetrically opened on both sides of the sliding groove 12, and guide blocks 21 fixedly connected to the outer walls of both sides of the sliding block 14 and slidably connected to the guide grooves 20. A drive plate 22 that slides in contact with the arc-shaped block 17 is fixedly connected to the middle right side of the lifting plate 3. A leveling mechanism is symmetrically arranged on the left and right sides of the frame 2. The leveling mechanism includes lifting grooves 23 symmetrically opened on both sides of the bottom end of the frame 2, and lifting blocks 24 slidably connected up and down inside the lifting grooves 23. Each lifting block 24 is fixedly connected to a fixed frame 25 at both ends. Electric push rod 26 is fixedly connected to both sides of the top of the frame 2. The output shaft of electric push rod 26 is fixedly connected to the lifting block 24. The leveling mechanism also includes electric push rod 27 symmetrically fixedly connected to the outside of the opposite side of the two fixed frames 25. Roller frame 28 is provided on the opposite side of the two fixed frames 25. Leveling roller 29 is rotatably connected to the bottom of roller frame 28 through bearing. The output shaft of electric push rod 27 is fixedly connected to the back of the fixed frame 25. Guide rod 30 is fixedly connected to both ends of the back of roller frame 28. Movable hole 31 is opened through both ends of the fixed frame 25 and slidably connected to guide rod 30. In this embodiment, by adjusting the screw 16 and the sliding block 14, the radial position of the arc block 17 on the eccentric disk 4 is precisely adjusted.

[0014] Furthermore, by using electric push rod 1 26, electric push rod 27 in conjunction with leveling roller 29, a leveling process is achieved where the packaging bag is pressed from top to bottom and then flattened from the center to both sides, thus solving the problem of uneven sealing area caused by incomplete leveling.

[0015] Working principle: The motor 13 starts and drives the eccentric disk 4 to rotate. The arc-shaped block 17 on the periphery of the eccentric disk 4 then moves in a circular motion. When the arc-shaped block 17 moves to the bottom, its circumferential surface presses against the drive plate 22, thereby driving the lifting plate 3 to overcome the elastic force of the spring 10 and move downward along the guide mechanism. Specifically, the dovetail block 6 slides down along the dovetail groove 5, while the guide rod 7 moves down in the movable hole 8 and compresses the spring 10. The hot press plate 32, fixed at the bottom of the lifting plate 3, descends accordingly and heat-presses the edge of the laundry detergent packaging bag placed on the hot press table 1. When the eccentric block 17 moves to the bottom, its circumferential surface presses against the drive plate 22, thereby driving the lifting plate 3 to overcome the elastic force of the spring 10 and move downward along the guide mechanism. Specifically, the dovetail block 6 slides down along the dovetail groove 5, while the guide rod 7 moves downward in the movable hole 8 and compresses the spring 10. As the center plate 4 continues to rotate, when the arc-shaped block 17 disengages from the contact point with the drive plate 22, the compressed spring 10 releases its elastic force, pushing the retaining ring 9 and guide rod 7 upward to reset, thereby driving the lifting plate 3 and the hot pressing plate 32 to rise as a whole, completing one sealing cycle. During this process, if it is necessary to adjust the hot pressing pressure, that is, change the downward pressing stroke of the lifting plate 3, it can be achieved by rotating the adjusting screw 16. The adjusting screw 16 rotates in the bearing seat 15 and pushes the sliding block 14. Under the constraint of the guide block 21 and the guide groove 20, the sliding block 14 moves along the sliding groove 12. The linear movement changes the radial position of the arc block 17 on the eccentric disk 4. The pointer 19 moves with the sliding block 14 and points to the corresponding mark on the scale bar 18 to indicate the adjustment amount. The change in the radial position of the arc block 17 directly changes the limit position of the pressure drive plate 22 when it rotates, ultimately achieving precise control of the downward stroke of the hot press plate 32. At the same time, the leveling mechanism pre-treats the packaging bag before hot pressing. In the initial state, the two leveling rollers 29 are parallel to each other and in a raised state. During operation, the electric push rod 26 first works to push its output. The lifting block 24 at the shaft end descends in the lifting groove 23, thereby driving the fixed frame 25 and the leveling roller 29 installed on it to move down until they press against the upper surface of the packaging bag placed on the hot press table 1. Then, the symmetrically arranged electric push rod 27 starts and retracts its output shaft, pulling the roller frame 28 connected to its output shaft. Under the guidance of the guide rod 30 and the movable hole 31, the roller frame 28 moves in opposite directions, thereby driving the two leveling rollers 29 to move horizontally from the middle of the packaging bag to both sides, flattening the bag body to ensure the flatness of the subsequent hot press sealing area.

[0016] It should be noted that, in the specific implementation of this technical solution, the electric push rod 26 and the electric push rod 27 can be configured with conventional synchronous controllers (such as PLC controllers, microprocessors, or dedicated synchronous control modules) found in the prior art. Although such synchronous control devices are not described in detail in this technical solution, they are mature components that can be conventionally selected by those skilled in the art based on actual synchronous drive requirements. Their selection and control logic follow well-known technologies in this field and do not affect the implementation of the core innovation of this solution. In practical applications, the synchronous controller is mainly used to ensure the synchronous lifting and lowering of the two electric push rods 26 and the synchronous opposite movement of the two electric push rods 27. However, its specific type and connection method can be adjusted according to production requirements, all of which fall within the reasonable extension range of this technical solution.

[0017] It should be further noted that, in the specific implementation of this technical solution, the hot press plate 32 can be a conventional electric heating hot press plate (such as a cast aluminum heating plate, stainless steel heating plate, or ceramic heating plate). Although such heating elements are not described in detail in the technical solution, they are mature components that can be conventionally selected by those skilled in the art based on the actual heat sealing process requirements. Their selection and temperature control follow the well-known technology in this field and do not affect the implementation of the core innovation of this solution. In practical applications, the hot press plate is mainly used to heat and pressurize the sealing area of ​​the packaging bag to achieve a seal, but its specific model, power, and temperature control method can be adjusted according to the packaging material and production cycle requirements, all of which fall within the reasonable extension range of this technical solution.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat-sealing device for producing laundry detergent packaging bags, characterized in that: include A hot press table (1) has a frame (2) fixedly connected to its top right side. A lifting plate (3) is installed on the frame (2) via a guide mechanism. A hot press plate (32) is fixedly connected to the bottom center of the lifting plate (3). An eccentric disk (4) is located on the upper right side of the frame (2), and an adjustment mechanism is provided on the eccentric disk (4); The leveling mechanism is symmetrically arranged on the left and right sides of the frame (2).

2. The hot-press sealing device for producing laundry detergent packaging bags according to claim 1, characterized in that: The guiding mechanism includes dovetail grooves (5) symmetrically opened on the inner walls of both sides of the frame (2), and dovetail blocks (6) symmetrically fixedly connected to the outer sides of the lifting plate (3) and slidingly engaged with the dovetail grooves (5). The top of both sides of the lifting plate (3) is fixedly connected with a guide rod (7). The top of the frame (2) is provided with a movable hole (8) slidably connected to the guide rod (7) on both sides. A retaining ring (9) is fixedly connected to the outer periphery of the top of the guide rod (7). A spring (10) is movably sleeved on the outside of the guide rod (7). The two ends of the spring (10) abut against the retaining ring (9) and the frame (2) respectively.

3. The hot-press sealing device for producing laundry detergent packaging bags according to claim 1, characterized in that: The adjustment mechanism includes a mounting bracket (11) fixedly connected to the middle left side of the top of the frame (2), and a sliding groove (12) opened on the outside right side of the eccentric disk (4). A motor (13) is fixedly connected to the outside of the mounting bracket (11). The output shaft of the motor (13) is fixedly connected to the eccentric disk (4). A sliding block (14) is slidably connected inside the sliding groove (12). A bearing seat (15) is fixedly connected to the upper end of the sliding groove (12). An adjusting screw (16) is threadedly connected to the middle of the bearing seat (15). The output shaft of the adjusting screw (16) is rotatably connected to the sliding block (14) through a bearing. An arc-shaped block (17) is fixedly connected to the bottom end of the sliding block (14). A scale bar (18) is fixedly connected to both sides of the eccentric disk (4) located in the sliding groove (12). A pointer (19) matching the scale bar (18) is fixedly connected to the front top of the sliding block (14).

4. The heat-sealing device for producing laundry detergent packaging bags according to claim 3, characterized in that: The adjustment mechanism also includes guide grooves (20) symmetrically opened on both sides of the sliding groove (12), and guide blocks (21) fixedly connected to the outer walls on both sides of the sliding block (14) and slidably connected to the guide grooves (20). The right middle part of the lifting plate (3) is fixedly connected to a drive plate (22) that slidably contacts the arc block (17).

5. The hot-press sealing device for producing laundry detergent packaging bags according to claim 1, characterized in that: The leveling mechanism includes lifting grooves (23) symmetrically opened on both sides of the bottom end of the frame (2), and lifting blocks (24) slidably connected inside the lifting grooves (23). A fixed frame (25) is fixedly connected between the two ends of the two lifting blocks (24). An electric push rod (26) is fixedly connected to both sides of the top end of the frame (2). The output shaft of the electric push rod (26) is fixedly connected to the lifting block (24).

6. The heat-sealing device for producing laundry detergent packaging bags according to claim 5, characterized in that: The leveling mechanism also includes two electric push rods (27) that are symmetrically fixedly connected to the outside of the opposite side of the two fixed frames (25). Roller frames (28) are provided on the opposite side of the two fixed frames (25). A leveling roller (29) is rotatably connected to the bottom of the roller frame (28) through a bearing. The output shaft of the electric push rod (27) is fixedly connected to the back of the fixed frame (25). Guide rods (30) are fixedly connected to both ends of the back of the roller frame (28). Movable holes (31) that are slidably connected to the guide rods (30) are opened through both ends of the fixed frame (25).

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