A packaging bag film printing and drying device

By introducing tensioning and correction components into the drying device, the restoring force of springs and torsion springs is used to straighten and correct the packaging film, solving the problem of wrinkles and misalignment of the packaging film during the drying process, thus improving the drying effect and printing quality.

CN224426878UActive Publication Date: 2026-06-30WENZHOU RONGCHENG PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU RONGCHENG PACKAGING CO LTD
Filing Date
2025-08-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing drying equipment, the packaging film is prone to wrinkles during the drying process, which affects the printed pattern and the drying effect.

Method used

The packaging bag film is straightened and corrected by using tensioning and correction components, with the restoring force of springs and torsion springs respectively, to avoid wrinkles and deviation.

Benefits of technology

This effectively prevents the packaging film from wrinkling and shifting during the drying process, improving the integrity of the printed pattern and drying efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224426878U_ABST
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Abstract

This utility model discloses a packaging bag film printing and drying device, including a base, a fixed frame at the top of the base, a heating plate on the fixed frame, and a tensioning assembly located below the heating plate on the fixed frame. The tensioning assembly includes a guide rod disposed on the inner wall of the fixed frame, a slider movably connected to the guide rod, and a tensioning roller rotatably connected to the slider. In summary, this utility model overcomes the shortcomings of the prior art, has a reasonable design, and can support the tensioning roller to straighten the packaging bag film through the spring return force, thereby improving drying efficiency and possessing high social use value and application prospects.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, and in particular to a packaging bag film printing and drying device. Background Technology

[0002] Packaging bag printing is printing on various packaging materials to add decorative patterns, designs, or text to make the product more attractive or informative, thereby conveying information and increasing sales. It can also improve product awareness and sales to a certain extent, making it easier to sell the product. In order to improve printing efficiency, plastic packaging bags usually need to be dried after printing.

[0003] In existing drying devices, packaging film is prone to wrinkling during the drying process, which not only scratches the printed pattern but also affects the drying effect. To solve the above problems, a packaging film printing drying device that can straighten the packaging film during drying is provided. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, the present invention provides a packaging bag film printing and drying device.

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

[0006] A packaging bag film printing and drying device includes a base, a fixing frame at the top of the base, a heating plate on the fixing frame, and a tensioning component on the fixing frame located below the heating plate.

[0007] The tensioning assembly includes a guide rod disposed on the inner wall of the fixed frame, a slider movably connected to the guide rod, and a tensioning roller rotatably connected to the slider.

[0008] Preferably, a fixing ring is provided at the middle position of the guide rod, and springs are sleeved on both sides of the fixing ring on the guide rod, with the movable end of the springs fixedly connected to the slider.

[0009] Preferably, the inner sidewall of the fixing frame is provided with an inlet roller and an outlet roller near both ends.

[0010] Preferably, the side wall of the fixing frame is provided with a correction component.

[0011] Preferably, the correction assembly includes a connecting block fixedly connected to the side end of the fixed frame, and a correction frame is movably connected to the connecting block.

[0012] Preferably, a support shaft is fixedly connected to the top of the connecting block, a rotating block is rotatably connected to the top of the support shaft, and the correction frame is fixedly connected to the side wall of the rotating block.

[0013] Preferably, a torsion spring is sleeved on the support shaft, the fixed end of the torsion spring is fixedly connected to the support shaft, and the movable end of the torsion spring is fixedly connected to the rotating block.

[0014] Preferably, the inner sidewall of the correction frame has correction rollers near both ends.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The packaging film is introduced through the inlet roller and passes over the two tension rollers. The spring's restoring force straightens the packaging film between the tension rollers, preventing wrinkles and scratches on the printed pattern during drying, which would affect the drying effect.

[0017] 2. When the packaging film deviates during the drying process and is conveyed, the packaging film will push one of the correction rollers to rotate the correction frame by a certain angle. The restoring force of the torsion spring can slowly correct the deviated packaging film, preventing it from folding after deviation and affecting the drying efficiency.

[0018] In summary, this utility model overcomes the shortcomings of the prior art, has a reasonable design, and can support the tension roller to straighten the packaging bag film through the spring return force, thereby improving drying efficiency. It has high social use value and application prospects. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the tensioning component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the correction component structure of this utility model.

[0024] In the figure: base 1, fixed frame 2, inlet roller 21, outlet roller 22, heating plate 23, tension roller 24, guide rod 241, fixed ring 242, spring 243, slider 244, correction assembly 3, connecting block 31, support shaft 32, rotating block 33, torsion spring 321, correction frame 34, correction roller 35. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Example 1

[0027] Reference Figure 1-4 A packaging bag film printing and drying device includes a base 1, a fixed frame 2 at the top of the base 1, a heating plate 23 on the fixed frame 2, and a tensioning component located below the heating plate 23 on the fixed frame 2.

[0028] The tensioning assembly includes a guide rod 241 disposed on the inner wall of the fixed frame 2, a fixed ring 242 disposed in the middle of the guide rod 241, sliders 244 slidably connected to both sides of the fixed ring 242 on the guide rod 241, and springs 243 sleeved on both sides of the fixed ring 242 on the guide rod 241. The movable end of the spring 243 is fixedly connected to the slider 244, and a tensioning roller 24 is rotatably connected to the side wall of the slider 244.

[0029] Furthermore, the inner sidewall of the fixing frame 2 is provided with an inlet roller 21 and an outlet roller 22 near both ends. The packaging film is introduced from the inlet roller 21 and passes over the two tension rollers 24. The restoring force of the spring 243 can straighten the packaging film between the tension rollers 24, so as to avoid wrinkles during drying and affect the drying effect. Then, the packaging film located between the tension rollers 24 is dried by the heating plate 23. The dried packaging film is exported from the outlet roller 22, and the drying is completed at this time.

[0030] Example 2

[0031] Reference Figure 1-4 The side wall of the fixed frame 2 is provided with a correction component 3. The correction component 3 includes a connecting block 31 fixedly connected to the side end of the fixed frame 2. A support shaft 32 is fixedly connected to the top of the connecting block 31. A rotating block 33 is rotatably connected to the top of the support shaft 32. A correction frame 34 is provided on the side wall of the rotating block 33. A correction roller 35 is provided on the inner side wall of the correction frame 34 near both ends.

[0032] Furthermore, a torsion spring 321 is sleeved on the support shaft 32, with the fixed end of the torsion spring 321 fixedly connected to the support shaft 32 and the movable end of the torsion spring 321 fixedly connected to the rotating block 33.

[0033] When the packaging film deviates during the drying process and is conveyed, the packaging film will push one of the correction rollers 35 to rotate the correction frame 34 by a certain angle. The restoring force of the torsion spring 321 can slowly correct the deviated packaging film, preventing it from folding after deviation and affecting the drying efficiency.

[0034] Working principle: The packaging film is introduced from the inlet roller 21 and passes over the two tension rollers 24. The restoring force of the spring 243 can straighten the packaging film between the tension rollers 24 to prevent wrinkles and scratches on the printed pattern during drying. Then, the packaging film between the tension rollers 24 is dried by the heating plate 23. The dried packaging film is then exported from the outlet roller 22.

[0035] When the packaging film deviates during the drying process and is conveyed, the packaging film will push one of the correction rollers 35 to rotate the correction frame 34 by a certain angle. The restoring force of the torsion spring 321 can slowly correct the deviated packaging film, preventing it from folding after deviation and affecting the drying efficiency.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0039] 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 packaging bag film printing and drying apparatus, characterized in that, include A base (1) is provided with a fixing frame (2) at the top of the base (1), a heating plate (23) is provided on the fixing frame (2), and a tensioning component is provided on the fixing frame (2) below the heating plate (23); The tensioning assembly includes a guide rod (241) disposed on the inner wall of the fixed frame (2), a slider (244) movably connected to the guide rod (241), and a tensioning roller (24) rotatably connected to the slider (244).

2. The packaging bag film printing and drying apparatus according to claim 1, characterized in that: A fixing ring (242) is provided in the middle of the guide rod (241). Springs (243) are sleeved on both sides of the fixing ring (242) on the guide rod (241). The movable end of the spring (243) is fixedly connected to the slider (244).

3. The packaging bag film printing and drying apparatus according to claim 1, characterized in that: The inner sidewall of the fixed frame (2) is provided with an inlet roller (21) and an outlet roller (22) near both ends.

4. The packaging bag film printing and drying apparatus according to claim 1, characterized in that: The side wall of the fixed frame (2) is provided with a correction component (3).

5. The packaging bag film printing and drying apparatus according to claim 4, characterized in that: The correction component (3) includes a connecting block (31) fixedly connected to the side of the fixed frame (2), and a correction frame (34) is movably connected to the connecting block (31).

6. The packaging bag film printing and drying apparatus according to claim 5, characterized in that: The top of the connecting block (31) is fixedly connected to a support shaft (32), the top of the support shaft (32) is rotatably connected to a rotating block (33), and the correction frame (34) is fixedly connected to the side wall of the rotating block (33).

7. The packaging bag film printing and drying apparatus according to claim 6, characterized in that: A torsion spring (321) is sleeved on the support shaft (32). The fixed end of the torsion spring (321) is fixedly connected to the support shaft (32), and the movable end of the torsion spring (321) is fixedly connected to the rotating block (33).

8. The packaging bag film printing and drying apparatus according to claim 7, characterized in that: The inner wall of the correction frame (34) near both ends has correction rollers (35).