A sealing machine with adjustable sealing width

Abstract

This utility model relates to the field of sealing machine technology, and more particularly to a sealing machine with adjustable sealing width. It includes a worktable with a groove inside, and symmetrical sliding grooves on the inner sidewalls of the groove. Two support plates are arranged vertically within the groove. This utility model utilizes a transmission assembly where a servo motor drives a second gear via a first gear, which in turn drives a threaded bushing to rotate. The threaded bushing, through its internal thread, causes a threaded rod to move laterally, saving operators time on manual adjustments. It adapts to sealing bags of different widths, improving the overall equipment's adaptability. A reset assembly is also included, where a spring presses against the end of a moving plate, causing the moving plate to move a connecting rod. The connecting rod then moves a heating plate, increasing the contact area between the heating plate and bags of different thicknesses, improving the uniformity of force during sealing, and preventing leakage due to uneven force.

Description

Technical Field

[0001] This utility model relates to the field of sealing machine technology, and in particular to a sealing machine with adjustable sealing width. Background Technology

[0002] A sealing machine is a specialized piece of equipment used to seal the opening of a packaging bag. Its core purpose is to prevent the contents from leaking, getting damp, oxidizing, or becoming contaminated, and to extend the shelf life.

[0003] Because it is necessary to seal flower bags or tea bags of different widths to ensure their airtightness during transportation, traditional sealing machines have slow adjustment times when sealing bags of different widths due to the varying bag sizes. This affects the sealing of bags of different sizes and reduces overall sealing efficiency. Furthermore, the distance between the upper and lower heating plates of traditional sealing machines is difficult to adjust, resulting in uneven contact areas between the heating plates and the bags. This makes it difficult to heat bags of different thicknesses evenly, leading to leaks and requiring rework, thus reducing the yield rate of the sealing process. Utility Model Content

[0004] The purpose of this invention is to solve the problems of long adjustment time and low equipment adaptability in the existing technology, and to propose a sealing machine with adjustable sealing width.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable sealing machine includes a worktable with a groove inside. A sliding groove is symmetrically formed on the inner sidewall of the groove. Two support plates are arranged vertically within the groove, and the support plates slide within the sliding groove via sliders. Two heating plates are symmetrically arranged between the two support plates. A reset assembly for resetting the heating plates is provided within each support plate. An L-shaped plate is provided at the end of the worktable, and a servo motor is located at the end of the L-shaped plate. A transmission assembly is provided at the output end of the servo motor. An arc-shaped inclined surface is formed on the sidewall of the worktable.

[0007] Preferably, the support plate has symmetrically formed convex grooves, and the heating plate has two symmetrically formed connecting rods at its ends, with the ends of the two connecting rods extending into the convex grooves.

[0008] Preferably, the reset assembly has two movable plates and two springs. The movable plates are disposed on the inner sidewall of the convex groove. The end of the movable plate is connected to the end of the connecting rod, and the movable plate and the connecting rod are arranged in a one-to-one correspondence. The end of the spring is disposed on the inner sidewall of the convex groove, and the other end of the spring is connected to the end of the movable plate, and the spring and the movable plate are arranged in a one-to-one correspondence.

[0009] Preferably, a threaded rod is inserted into the end of the workbench, the end of the threaded rod extends into the groove, a threaded bushing is provided on the outer wall of the threaded rod, and connecting blocks are provided at the ends of the two support plates, with the ends of the threaded rod and the ends of the connecting blocks connected together.

[0010] Preferably, the threaded rod end is provided with a limiting plate, the worktable end is provided with a guide rod, the end of the guide rod is connected to the end of the connecting block, and the other end of the guide rod is connected to the end of the limiting plate.

[0011] Preferably, the transmission assembly includes a first gear and a second gear. The first gear is coaxially fixedly mounted on the output end of the servo motor, and the second gear is rotatably mounted on the side wall of the worktable. The inner side wall of the second gear and the outer side wall of the threaded bushing are coaxially connected, and the first gear and the second gear mesh with each other.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. This utility model, by setting up a transmission component, allows the servo motor to drive the second gear to rotate through the first gear, and the second gear to drive the threaded bushing to rotate. The threaded bushing causes the threaded rod to move laterally through the internal thread, saving the operator's manual adjustment time, adapting to the sealing work of packaging bags of different widths, and improving the overall adaptability of the equipment.

[0014] 2. This utility model, by setting a reset component, uses a spring to press the end of the moving plate, causing the moving plate to move the connecting rod, which in turn moves the heating plate. This increases the contact area between the heating plate and packaging bags of different thicknesses, improves the uniformity of force during sealing, and avoids leakage caused by uneven force during sealing. Attached Figure Description

[0015] Figure 1 Isometric view of a sealing machine with adjustable sealing width proposed in this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of a portion of region A in the middle;

[0017] Figure 3 These are isometric views of the left and right sides at equal angles;

[0018] Figure 4 for Figure 3 Enlarged view of a portion of region B in the middle;

[0019] Figure 5 This is a sectional side view of the workbench.

[0020] In the diagram: 1. Workbench; 2. Support plate; 3. Slider; 4. Slide groove; 5. Arc-shaped inclined surface; 6. Threaded rod; 7. Limiting plate; 8. Spring; 9. Connecting rod; 10. Moving plate; 11. Heating plate; 12. L-shaped plate; 13. First gear; 14. Guide rod; 15. Second gear; 16. Threaded bushing; 17. Servo motor; 18. Connecting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-5 An adjustable sealing machine includes a worktable 1 with a groove inside the worktable 1. The inner sidewall of the groove is symmetrically provided with a sliding groove 4. Two support plates 2 are arranged vertically inside the groove. A slider 3 is fixedly arranged on the sidewall of the support plate 2. The support plate 2 slides in the sliding groove 4 through the slider 3, which facilitates the subsequent position adjustment of the two support plates 2. This configuration provides power transmission to the support plate 2.

[0023] Two heating plates 11 are symmetrically arranged between the two support plates 2. The support plates 2 have symmetrically opened convex grooves. Two connecting rods 9 are symmetrically fixed at the ends of the heating plates 11, and the ends of the two connecting rods 9 extend into the convex grooves. This arrangement prevents the heating plates 11 from being subjected to uneven force, which could cause displacement during sealing and affect the sealing effect of the packaging bag.

[0024] The support plate 2 is equipped with a reset assembly for resetting the heating plate 11. The reset assembly has two movable plates 10 and two springs 8. The movable plates 10 are slidably disposed on the inner sidewall of the convex groove. The end of the movable plate 10 is fixedly connected to the end of the connecting rod 9, and the movable plate 10 and the connecting rod 9 are arranged in a one-to-one correspondence. The end of the spring 8 is fixedly disposed on the inner sidewall of the convex groove by a hook, and the other end of the spring 8 is fixedly connected to the end of the movable plate 10 by a hook, and the spring 8 and the movable plate 10 are arranged in a one-to-one correspondence. The spring 8 presses the end of the movable plate 10, the movable plate 10 drives the connecting rod 9 to move, and the connecting rod 9 drives the heating plate 11 to move. This arrangement provides a reset force for the heating plate 11.

[0025] It should be noted that by setting two support plates 2 at the top and bottom and multiple springs 8 facing each other, the two heating plates 11 move in opposite directions, increasing the contact area between the heating plates 11 and the packaging bag. This prevents some packaging bags from leaking due to uneven force, which would affect the subsequent sealing effect and improve the equipment's adaptability to packaging bags of different thicknesses.

[0026] A threaded rod 6 is inserted at the end of the workbench 1, with its end extending into a groove. A threaded bushing 16 is located on the outer wall of the threaded rod 6. The external thread of the threaded rod 6 engages with the internal thread of the threaded bushing 16, allowing the threaded bushing 16 to move the threaded rod 6 laterally via the internal thread. A connecting block 18 is fixedly installed at the ends of two support plates 2, with the ends of the threaded rod 6 and the connecting block 18 fixedly connected. This allows the threaded rod 6 to move the two support plates 2 via the connecting block 18, reducing operator adjustment time, simplifying the operation process, and improving equipment operating efficiency.

[0027] The limiting plate 7 is fixedly installed at the end of the threaded rod 6, and the guide rod 14 is inserted at the end of the worktable 1. The end of the guide rod 14 is fixedly connected to the end of the connecting block 18, and the other end of the guide rod 14 is fixedly connected to the end of the limiting plate 7. This arrangement prevents the threaded rod 6 from shifting when it moves, thus affecting the efficiency of subsequent adjustments.

[0028] L-shaped plate 12 is fixedly mounted at the end of workbench 1, and servo motor 17 is fixedly mounted at the end of L-shaped plate 12. A shock-absorbing pad is provided between servo motor 17 and workbench 1. A servo controller is provided on servo motor 17. The rotation direction and rotation angle of the output end of servo motor 17 are adjusted through the operation program of servo controller, so as to effectively control the direction of rotation and provide driving force for threaded rod 6. This operation program is existing technology and will not be elaborated on here.

[0029] The output end of the servo motor 17 is equipped with a transmission component. The side wall of the worktable 1 has an arc-shaped inclined surface 5. The transmission component includes a first gear 13 and a second gear 15. The first gear 13 is coaxially fixedly mounted on the output end of the servo motor 17, and the second gear 15 is rotatably mounted on the side wall of the worktable 1. The inner side wall of the second gear 15 and the outer side wall of the threaded bushing 16 are coaxially fixedly connected. The first gear 13 and the second gear 15 mesh with each other, so that the first gear 13 drives the second gear 15 to rotate, and the second gear 15 drives the threaded bushing 16 to rotate. This configuration provides power transmission to the threaded rod 6.

[0030] The functional principle of this utility model can be explained through the following operation methods:

[0031] When dealing with packaging bags of different widths, the servo motor 17 is driven to rotate the first gear 13. The first gear 13 and the second gear 15 mesh with each other. The first gear 13 drives the second gear 15 to rotate, and the second gear 15 drives the threaded bushing 16 to rotate. The threaded bushing 16 moves the threaded rod 6 through the internal thread. The threaded rod 6 moves the guide rod 14 upward, and the threaded rod 6 moves the connecting block 18. The connecting block 18 moves the two support plates 2, which makes it convenient for the operator to adjust the support plates 2 and prevents the threaded rod 6 from deviating when it moves.

[0032] The spring 8 presses the moving plate 10, which in turn moves the connecting rod 9. The connecting rod 9 then moves the heating plate 11. The curved inclined surface 5 acts as a barrier against the packaging bag, allowing the upper and lower heating plates 11 to heat packaging bags of different thicknesses evenly, thus improving the yield rate of sealing the packaging bags.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealing machine with adjustable sealing width, comprising a worktable, characterized in that, The worktable has a groove, and the inner sidewall of the groove has symmetrical sliding grooves. Two support plates are set in the groove, one above the other. The support plates slide in the sliding grooves via sliders. Two heating plates are symmetrically arranged between the two support plates. The support plates have reset components for resetting the heating plates. The end of the worktable has an L-shaped plate, and the end of the L-shaped plate has a servo motor. The output end of the servo motor has a transmission component. The sidewall of the worktable has an arc-shaped inclined surface.

2. The sealing machine with adjustable sealing width according to claim 1, characterized in that, The support plate has symmetrically convex grooves, and the heating plate has two symmetrically symmetrically connected rods at its ends, with the ends of the two connected rods extending into the convex grooves.

3. A sealing machine with adjustable sealing width according to claim 2, characterized in that, The reset assembly has two movable plates and two springs. The movable plates are set on the inner sidewall of the convex groove, and the end of the movable plate is connected to the end of the connecting rod. The movable plates and the connecting rods are set in a one-to-one correspondence. The end of the spring is set on the inner sidewall of the convex groove, and the other end of the spring is connected to the end of the movable plate. The springs and the movable plates are set in a one-to-one correspondence.

4. A sealing machine with adjustable sealing width according to claim 3, characterized in that, A threaded rod is inserted at the end of the workbench, with the end of the threaded rod extending into a groove. A threaded bushing is provided on the outer wall of the threaded rod, and connecting blocks are provided at the ends of the two support plates. The ends of the threaded rod and the ends of the connecting blocks are connected.

5. A sealing machine with adjustable sealing width according to claim 4, characterized in that, The threaded rod has a limiting plate at its end, and a guide rod is inserted at the end of the worktable. The end of the guide rod is connected to the end of the connecting block, and the other end of the guide rod is connected to the end of the limiting plate.

6. A sealing machine with adjustable sealing width according to claim 5, characterized in that, The transmission assembly includes a first gear and a second gear. The first gear is coaxially fixed at the output end of the servo motor, and the second gear is rotatably mounted on the side wall of the worktable. The inner side wall of the second gear and the outer side wall of the threaded bushing are coaxially connected, and the first gear and the second gear mesh with each other.

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