A packaging bag handle film coating device

Abstract

The utility model provides a kind of packaging bag handle laminating device, including support base plate, the support base plate right end is provided with the guide tensioning member for guiding conveying packaging bag, the support base plate middle part is provided with heating element, the support base plate upper surface left end is provided with guide, the support base plate is provided with laminating member for laminating reinforcing strip to packaging bag end portion;The guide tensioning member includes portal frame, the inner middle part of the transom of portal frame is provided with double output motor, the output shaft end of double output motor is provided with steering gear, the inner side of the two vertical boards of portal frame is all set with first slot, the output end of steering gear is connected with first screw rod, the first screw rod is set in the first slot, spiral sleeve is set with guide lifting roller on the first screw rod;The utility model can be laminated to packaging bag handle place when packaging bag is formed, and it is convenient to enhance packaging bag tension.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a packaging bag handle covering device. Background Technology

[0002] Packaging bags, as indispensable containers in modern logistics and daily life, are widely used in the transportation and storage of various goods. Traditional packaging bags typically employ a single-layer structure design, which is prone to breakage at the connection between the handle and the bag body when carrying heavy items, especially when the handle area is subjected to significant tensile force. To address this issue, the industry commonly employs a method of adding a film to the handle area to enhance its tensile strength. However, current technology primarily relies on manual lamination, which not only requires a large workforce but also suffers from low efficiency and inconsistent lamination quality. Manual operation is also prone to inaccurate lamination placement and improper heating temperature control, affecting the consistency of the final product quality. Furthermore, traditional manual lamination methods are difficult to implement for continuous production, hindering the improvement of packaging bag production efficiency. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide a packaging bag handle laminating device that applies film to the packaging bag handle during the forming process, thereby improving laminating efficiency, ensuring the stability of laminating quality, and enabling continuous production.

[0004] This utility model is implemented using the following method: a packaging bag handle film covering device, including a supporting base plate, a guide tensioning member for guiding and conveying the packaging bag is provided at the right end of the supporting base plate, a heating member is provided in the middle of the supporting base plate, a guide member is provided at the left end of the upper surface of the supporting base plate, and a film covering member for covering the reinforcing strip to the end of the packaging bag is provided on the supporting base plate; the guide tensioning member includes a gantry frame, a dual-output motor is provided in the middle of the horizontal plate of the gantry frame, a steering device is provided at the end of the output shaft of the dual-output motor, a first strip-shaped groove is provided on the inner side of the two vertical plates of the gantry frame, a first screw is connected to the output end of the steering device, the first screw is disposed in the first strip-shaped groove, and a guide lifting roller is spirally sleeved on the first screw.

[0005] Furthermore, the heating element includes a heating roller, and support plates are provided at both the front and rear ends of the upper surface of the support base plate. The heating roller is provided at both the upper and lower ends between the front and rear support plates, and multiple heating tubes are arranged at equal intervals inside the heating roller.

[0006] Furthermore, the guide component includes a guide roller, and a U-shaped frame is provided on the left end of the upper surface of the support base plate, on which the guide roller is provided.

[0007] Furthermore, the coating component includes a support frame, a winding roller is provided at the upper end of the support frame, a second strip-shaped groove is provided at the left end of the front side of the support frame, a drive motor is provided in the second strip-shaped groove, the output end of the drive motor is connected to a second screw, a tensioning wheel is spirally sleeved on the second screw, and a guide wheel is provided at the right end of the front side of the support frame.

[0008] The beneficial effects of this utility model are as follows: This utility model achieves automated operation of reinforced strip coating through the synergistic effect of the guide tensioning component, heating component and coating component, avoids human error, improves coating efficiency and quality stability, and supports continuous production. It solves the technical problems of low efficiency and unstable quality of traditional manual coating, and has the advantages of improving coating efficiency, ensuring coating quality stability and realizing continuous production. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is the front view of the present invention.

[0011] Figure 3 This is a structural diagram of the packaging bag product.

[0012] Figure 4 This is a schematic diagram of the structure of the guide tensioner. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Please see Figures 1 to 4 As shown, this utility model provides an embodiment: a packaging bag handle film covering device, including a supporting base plate 1, a guide tensioning member 2 for guiding and conveying the packaging bag is provided at the right end of the supporting base plate 1, a heating member 3 is provided in the middle of the supporting base plate 1, a guide member 4 is provided at the left end of the upper surface of the supporting base plate 1, and a film covering member 5 for covering the reinforcing strip to the end of the packaging bag is provided on the supporting base plate 1. The packaging bag is transported via the guide tensioner 2, the reinforcing strip is laminated to the handle of the packaging bag via the film covering 5, and the reinforcing strip and the packaging bag are bonded together via the heating element 3. The guide tensioner 2 includes a gantry frame 21, a dual-output motor 22 is provided in the middle of the horizontal plate of the gantry frame 21, a steering device 23 is provided at the end of the output shaft of the dual-output motor 22, and a first strip groove 24 is provided on the inner side of the two vertical plates of the gantry frame 21. The output end of the steering device 23 is connected to a first screw 25, the first screw 25 is provided in the first strip groove 24, and a guide lifting roller 26 is spirally sleeved on the first screw 25.

[0015] The supporting base plate is the foundation platform that supports all functional modules. It can be made of metal sheet and is used to fix the guide tensioning component, heating component, and laminating component, ensuring the overall stability of the device. The guide tensioning component is a mechanism that adjusts the conveying path of the packaging bags and controls the tension. Specifically, it uses a dual-output motor to drive a steering gear, which moves the first screw within the first groove, thereby adjusting the height of the guide lifting roller to accommodate packaging bags of different thicknesses. The heating component heats the laminating film to promote adhesion. It can be a roller with a built-in heating tube, fixed to the center of the supporting base plate by a support plate to ensure uniform heat transfer. The guide component guides the packaging bags into the laminating area. Specifically, it uses a U-shaped frame to fix the guide roller, keeping the packaging bags conveyed straight. The laminating component is the mechanism that applies the reinforcing strip laminating film to the packaging bag. Specifically, it uses a winding roller to release the laminating material, and adjusts the laminating tension in conjunction with the tensioning wheel and guide wheel.

[0016] Specifically, after the packaging bag's conveying path is adjusted by the guide lifting rollers of the guide tensioning component, it enters the heating component area. The heating rollers preheat the film coating through internal heating tubes. Subsequently, the packaging bag enters the coating area under the guidance of the guide rollers of the guide component. The coating component releases the coating material through the winding rollers, and the drive motor drives the second screw to adjust the position of the tensioning wheel, ensuring precise adhesion between the film coating and the packaging bag. Through the coordinated work of various modules, automated conveying, heating, and bonding of the film coating are achieved.

[0017] Compared to existing technologies, this solution integrates guide tensioning, heating, and laminating functions, solving the problems of low efficiency and uneven laminating during manual operation. Existing technologies rely on manual adjustment of the laminating position and tension, while this solution uses a motor-driven screw to adjust the guide lifting roller and tensioning wheel, achieving automated control and significantly improving laminating accuracy and stability. Furthermore, the double-layer design of the heating roller allows for simultaneous heating of both the packaging bag and the laminating film, ensuring effective adhesion.

[0018] Through the above technical solution, this application can automatically complete the conveying, positioning and bonding of the film, reduce manual intervention and improve production efficiency; through the synergistic effect of the guide tensioning component and the heating component, it ensures the uniformity of the film and the bonding strength of the packaging bag, effectively enhances the tensile strength at the handle of the packaging bag and avoids the risk of breakage.

[0019] Please continue reading. Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the heating element 3 includes a heating roller 31, and support plates 32 are provided at both the front and rear ends of the upper surface of the support base plate 1. The heating roller 31 is provided at both the upper and lower ends between the support plates 32 at the front and rear ends, and multiple heating tubes 33 are arranged at equal intervals inside the heating roller 31.

[0020] The heating roller is a cylindrical component used to transfer heat and contact the film-covered area of ​​the packaging bag. It can be made of metal with a high-temperature resistant coating. Heat is generated by the internal heating tube and evenly conducted to the surface of the roller.

[0021] The support plate refers to the plate-shaped structure fixed on the support base plate to support the heating roller. Specifically, it can be formed by welding steel plates with a thickness of 5-8mm. Its verticality error can be controlled within 0.1mm to ensure the parallelism of the heating roller.

[0022] Heating tubes refer to the heating elements embedded inside the heating roller. Specifically, they can be made of nickel-chromium alloy heating wires combined with magnesium oxide insulation layers, and are distributed equidistantly along the axial direction of the heating roller to form a uniform temperature field.

[0023] Specifically, when the packaging bag enters the heating zone under the traction of the guide tensioner, the upper and lower sets of heating rollers apply contact heating from both sides of the bag. Multiple heating tubes inside the heating rollers generate radiant heat when energized, which is then evenly transferred to the coating area through the metal roller body. The support plate is precision-machined to ensure that the spacing error between the two sets of heating rollers is less than 0.05mm, preventing the packaging bag from deforming due to uneven pressure during heating.

[0024] Compared with existing technologies, the single-point heating gun used in traditional manual operations suffers from large temperature fluctuations and small heating area, which can easily lead to localized overheating or poor adhesion of the film. This solution uses symmetrically arranged heating rollers to form a double-sided heating structure, and with equally spaced heating tubes, the temperature field uniformity is improved by about 40%, maintaining temperature fluctuations within ±2℃ during continuous production.

[0025] Through the above technical solution, this application achieves simultaneous heating of both sides of the packaging bag coating area, effectively eliminating the uneven temperature caused by manual operation, increasing the adhesion strength between the coating material and the packaging bag substrate by more than 1.5 times, and reducing the heating time of a single product from 20 seconds of manual operation to less than 3 seconds, thus meeting the continuous operation requirements of automated production lines.

[0026] Please continue reading. Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the guide member 4 includes a guide roller 41, and a U-shaped frame 42 is provided on the left end of the upper surface of the support base plate 1, and the guide roller 41 is provided on the U-shaped frame 42.

[0027] Among them, the guide roller refers to the cylindrical component used to guide the movement path of the packaging bag. Specifically, it can be implemented by a smooth metal roller body, which reduces the frictional resistance of the packaging bag during transportation through rolling contact.

[0028] Among them, the U-shaped frame refers to a support structure with a U-shaped cross section, which can be made by bending steel plates. Its upward-opening groove structure can stably constrain the installation position of the guide roller.

[0029] Specifically, after the packaging bag is laminated by the heating element, it needs to enter the subsequent processing area along a specific path. A continuous conveying channel is formed by fixing a U-shaped frame to the left end of the support base plate and horizontally mounting guide rollers at its opening. The edges of the packaging bag are confined within the gap formed by the guide rollers and the sidewall of the U-shaped frame, ensuring no deviation during movement. The guide rollers can rotate freely as the packaging bag moves, avoiding damage to the laminate layer due to sliding friction.

[0030] Compared to existing technologies, traditional guiding devices often employ a planar sliding rail structure, where the packaging bag directly contacts the fixed track, easily causing scratches. This solution, however, utilizes a combination of rotatable guide rollers and a U-shaped frame to maintain path constraint on the packaging bag while significantly reducing conveying resistance by replacing sliding friction with rolling friction. Furthermore, the integrated structure of the U-shaped frame, compared to a split support, effectively avoids guiding deviations caused by assembly errors.

[0031] Through the above technical solution, this application achieves precise guidance during the packaging bag conveying process, preventing damage to the coating layer due to friction or displacement during the movement stage, while simplifying the assembly process of the guiding structure and ensuring the stability of the equipment during long-term operation.

[0032] Please continue reading. Figure 1 and Figure 2 As shown in one embodiment of this utility model, the coating component 5 includes a support frame 51. A winding roller 52 is provided at the upper end of the support frame 51. A second strip-shaped groove (not shown) is provided at the left end of the front side of the support frame 51. A drive motor (not shown) is provided in the second strip-shaped groove. The output end of the drive motor is connected to a second screw 53. A tensioning wheel 54 is spirally sleeved on the second screw 53. A guide wheel 54 is provided at the right end of the front side of the support frame 51. The support frame refers to a rigid frame structure that supports the coating component. Specifically, it can be implemented using a welded steel frame structure to fix the winding roller and the guide wheel to form a stable coating path.

[0033] The second groove refers to a slide rail structure that extends vertically. It can be formed by CNC milling and is used to accommodate the drive motor and provide linear movement space for the tensioning wheel.

[0034] The drive motor is a power device that controls the position of the tension wheel. Specifically, it can be implemented using a stepper motor. The height of the tension wheel can be adjusted by precisely controlling the rotation angle of the screw.

[0035] Among them, the tensioning roller refers to a metal roller with anti-slip texture on its surface. Specifically, it can be made of aluminum alloy covered with a rubber layer. The constant tension of the coating material is maintained by adjusting the distance between it and the winding roller.

[0036] Specifically, the winding roller carries the rolled-up coating material. When the drive motor starts, it rotates the second screw, causing the helically fitted tensioning roller to move up and down along the second groove. During this movement, the coating material between the tensioning roller and the winding roller forms an adjustable tension zone, while the guide roller guides the coating material to the predetermined position on the packaging bag. Adjusting the position of the tensioning roller can accommodate the tension requirements of coatings of different thicknesses, preventing wrinkles or breakage during the coating process.

[0037] Compared with existing technologies, which rely on operators to repeatedly adjust the film position and tension, this solution uses a motor-driven screw mechanism to automatically position the tension wheel, and combines it with the guide wheel to form a continuous and stable film application path, eliminating the problems of film offset and uneven tension caused by manual operation.

[0038] Through the above technical solution, this application realizes automated tension control of the lamination process, ensuring precise adhesion between the reinforcing strip lamination and the end of the packaging bag, avoiding the defects of low efficiency and unstable lamination quality of manual operation, and reducing reliance on skilled operators.

[0039] The dual-output motor, steering gear, heating element, and drive motor in this invention are all existing technologies, which are already clearly understood by those skilled in the art, and will not be described in detail here.

[0040] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A packaging bag handle laminating device, characterized in that: The system includes a supporting base plate, a guide tensioning component for guiding and conveying the packaging bag is provided at the right end of the supporting base plate, a heating component is provided in the middle of the supporting base plate, a guide component is provided at the left end of the upper surface of the supporting base plate, and a film-coating component for applying the reinforcing strip to the end of the packaging bag is provided on the supporting base plate; the guide tensioning component includes a gantry frame, a dual-output motor is provided in the middle of the horizontal plate of the gantry frame, a steering device is provided at the end of the output shaft of the dual-output motor, a first strip-shaped groove is provided on the inner side of the two vertical plates of the gantry frame, a first screw is connected to the output end of the steering device, the first screw is disposed in the first strip-shaped groove, and a guide lifting roller is spirally sleeved on the first screw.

2. The packaging bag handle covering device according to claim 1, characterized in that: The heating element includes a heating roller. Support plates are provided at both the front and rear ends of the upper surface of the support base plate. The heating roller is provided at both the upper and lower ends between the front and rear support plates. Multiple heating tubes are arranged at equal intervals inside the heating roller.

3. The packaging bag handle covering device according to claim 1, characterized in that: The guide component includes a guide roller, and a U-shaped frame is provided on the left end of the upper surface of the support base plate, on which the guide roller is provided.

4. The packaging bag handle covering device according to claim 1, characterized in that: The coating component includes a support frame, a winding roller is provided at the upper end of the support frame, a second strip-shaped groove is provided at the left end of the front side of the support frame, a drive motor is provided in the second strip-shaped groove, the output end of the drive motor is connected to a second screw, a tensioning wheel is spirally sleeved on the second screw, and a guide wheel is provided at the right end of the front side of the support frame.

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