A tray loading film wrapping apparatus

Abstract

The application relates to the field of material packaging, in particular to a tray wrapping film equipment. The tray wrapping film equipment comprises a rack, the rack is provided with parallel front and rear support plates, a gap for the wrapping film to pass through is arranged between the front and rear support plates; a bidirectional positioning assembly is fixed on the rear support plate, the bidirectional positioning assembly comprises transverse and longitudinal positioning plates for positioning materials; a winding assembly is fixed on the rack, the winding assembly drives a rotating arm and a wrapping film reel to wrap around the materials through a driving wheel and a driven wheel which are in meshing connection; a cutting assembly is arranged on the rear support plate for cutting the wrapping film, a waist hole is arranged on the support plate, an adjusting hole is arranged on the longitudinal positioning plate, an extension plate is arranged on the rear support plate, the cutting assembly comprises a blade, a support and a universal wheel are arranged at the bottom of the rack, and an electrode sheet is arranged on the lower surface of the front support plate. The application can not only realize accurate positioning of stacked materials and ensure the winding effect of the wrapping film, but also can directly cut the wrapping film after the winding is completed.

Description

Technical Field

[0001] This application relates to the field of material packaging, and in particular to a tray-wrapping stretch film device. Background Technology

[0002] In modern industrial production and logistics, the increasing demand for improved supply chain efficiency and the widespread adoption of refined management concepts have placed higher demands on the functionality and adaptability of material packaging. While traditional general-purpose stretch film is widely used in various types of goods packaging, it struggles to meet the differentiated needs of specific scenarios such as small-item containerization, precision product protection, and food preservation. In contrast, tray stretch film can meet the needs of small-item containerization, tightly wrapping materials and providing reliable protection.

[0003] Existing methods for wrapping materials with stretch film mainly fall into two categories: manual wrapping and mechanically assisted wrapping. Manual wrapping involves a worker holding the stretch film and moving it in a circular motion around the material to adhere it to the surface. This method is suitable for packaging small batches of materials. Simple mechanically assisted wrapping utilizes a simple rotating device. The material is placed on a rotating table, and the rotation of the table causes the material to rotate. The worker only needs to control the stretching and adhesion of the stretch film to complete the packaging. Compared to manual wrapping, this method improves packaging efficiency and the consistency of packaging quality.

[0004] However, existing stretch film packaging methods often lack precise positioning when packing small items, affecting the sealing effect of the stretch film; in addition, additional tools are required for cutting after packaging, increasing the complexity of the operation. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this application provides a tray-loading and wrapping film equipment that can not only accurately position stacked materials to ensure the wrapping effect of the film, but also directly cut the film after wrapping.

[0006] This application is achieved through the following technical solution:

[0007] A tray-loading stretch film equipment includes a frame with parallel support plates arranged on the frame; the support plates include a front support plate and a rear support plate; a gap is provided between the front support plate and the rear support plate for the stretch film to pass through.

[0008] A bidirectional positioning assembly, fixed on the rear support plate, includes a transverse positioning plate and a longitudinal positioning plate arranged at right angles. The transverse positioning plate is used to perform transverse positioning of the material to be wrapped on the support plate, and the longitudinal positioning plate is used to perform longitudinal positioning of the material to be wrapped on the support plate.

[0009] The wrapping assembly, fixed on the frame, is used to drive the stretch film roll to wind around the material to be wrapped in the tray in the gap between the front support plate and the rear support plate, so as to wrap the stretch film on the stretch film roll onto the material to be wrapped in the tray.

[0010] A cutting assembly for cutting the stretch film when picking up a tray of finished stretch film.

[0011] By adopting the above technical solution, the frame is equipped with parallel support plates, providing stable support for the material; the winding assembly can drive the stretch film roll to wind around the circumference of the material to be wrapped, realizing the wrapping of the stretch film; the gap between the support plates allows the stretch film to pass through, making the winding process smoother; by adjusting the position of the transverse positioning plate, the bidirectional positioning assembly can adapt to materials of different specifications, achieving precise positioning of stacked materials; the bidirectional positioning assembly, together with the winding assembly, can ensure that the material remains stable during the wrapping process, improving the wrapping effect of the stretch film; the cutting assembly on the front support plate can cut the stretch film when picking up the wrapped material, improving the convenience of operation.

[0012] Optionally, the support plate is provided with an oblong hole, which includes a first oblong hole and a second oblong hole; the first oblong hole is located on the front support plate, and the second oblong hole is located on the rear support plate and is adapted to the transverse positioning plate.

[0013] By adopting the above technical solution, the oblong hole can adjust the position of the support plate on the frame, making the equipment suitable for materials of different specifications; the first oblong hole on the front support plate facilitates the adjustment of the position of the front support plate on the frame to adapt to materials of different specifications, and also positions the blade in a position that is convenient for cutting the wrapping film; the second oblong hole on the rear support plate, which is adapted to the transverse positioning plate, allows the transverse positioning plate to be flexibly adjusted on the rear support plate to position materials of different specifications.

[0014] Optionally, the winding assembly includes a driving wheel and a driven wheel that mesh with each other. The driving wheel is powered by a drive motor to rotate. A rotating disk is fixed on the driven wheel, and a rotating arm is fixed on the rotating disk.

[0015] By adopting the above technical solution, the meshing of the driving wheel and the driven wheel enables the power of the drive motor to be transmitted to the driven wheel, which drives the rotating disk and the rotating arm to rotate, thereby realizing that the stretch film roll wraps around the material to be wrapped, so that the stretch film on the stretch film roll is smoothly wrapped around the material to be wrapped.

[0016] Optionally, the rotating arm has an "L" shaped structure, and the rotating arm includes a horizontal part and a vertical part, and the vertical part is provided with a roll for placing the wrapping film.

[0017] By adopting the above technical solution, the "L"-shaped rotating arm enables the wrapping assembly to have a reasonable spatial layout when it makes a circular motion in the circumference of the material, which facilitates the wrapping film to wrap the material tightly. The roll set in the longitudinal part can hold the wrapping film, which is convenient for the installation and use of the wrapping film. In addition, the longitudinal part is exposed, which makes it easy to observe the remaining amount of wrapping film, so as to give timely warning and replacement and avoid packaging interruption due to the use of wrapping film.

[0018] Optionally, the longitudinal positioning plate is provided with adjustment holes evenly distributed, and the side wall of the transverse positioning plate is provided with screw holes that are adapted to the adjustment holes.

[0019] By adopting the above technical solution, it is convenient to adjust the position of the longitudinal positioning plate on the transverse positioning plate. The adjustment hole on the longitudinal positioning plate can cooperate with the screw hole on the side wall of the transverse positioning plate to lock the longitudinal positioning plate and the transverse positioning plate, so as to adapt to materials of different specifications and limit the position of the materials.

[0020] Optionally, the rear support plate is provided with an extension plate for tensioning the wrapping film.

[0021] By adopting the above technical solution, on the one hand, the extension plate can support the material, and on the other hand, the starting end of the wrapping film can be pressed onto the extension plate by the material, ensuring that the wrapping film can always be kept in a taut state when the wrapping assembly is wrapping the material, making the wrapping process more stable and ensuring the wrapping effect.

[0022] Optionally, the extension plate is provided with a positioning hole for adjusting the extension length of the extension plate, and the rear support plate is provided with a screw hole that matches the positioning hole.

[0023] By adopting the above technical solution, the extension length of the extension plate can be adjusted by using positioning holes and screw holes, so that the extension plate can better tension the wrapping film to meet different operational needs.

[0024] Optionally, the cutting assembly includes a blade, the front support plate has a "convex" structure, and the blade is located on the outer extension of the front support plate.

[0025] By adopting the above technical solution, the front support plate is designed with a "convex" shape and the blade is placed on the outer extension, which facilitates the cutting operation of the stretch film. After the stretch film is wrapped, the material and the roll holding the stretch film are located on the upper and lower sides of the blade, respectively. When the material is removed, the blade can cut the stretch film, improving the convenience of the cutting operation.

[0026] Optionally, the bottom of the frame is equipped with support components and casters.

[0027] By adopting the above technical solutions, the support component can stably support the equipment and ensure its stability during operation, while the casters make the equipment easy to move and transport, and facilitate changing the equipment's usage position. The support component, together with the casters, can provide stable support for the equipment when it is moved to a suitable position, preventing the equipment from shaking. In addition, by adjusting the height of the support component, the equipment can always remain in a horizontal state, ensuring the stability of the equipment's working environment.

[0028] Optionally, the lower surface of the front support plate is provided with electrode sheets for adsorbing and wrapping the film.

[0029] By adopting the above technical solution, the lower surface of the front support plate is provided with electrode plates for adsorbing the wrapping film, which can effectively adsorb the wrapping film, facilitate subsequent operations and better control of the wrapping film state, and facilitate the completion of the wrapping and packaging of materials.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. This application, by setting a bidirectional positioning component, enables the equipment to adapt to materials of different specifications, achieve precise positioning of stacked materials, and improve the wrapping effect of the stretch film;

[0032] 2. This application improves the convenience of cutting operations by setting a cutting component on the front support plate with a "convex" structure, so that the cutting component can cut the wrapping film when the material is removed;

[0033] 3. The wrapping assembly of this application, in conjunction with the extension plate on the rear support plate, ensures that the wrapping film remains taut when the wrapping assembly moves in a circular motion around the material, thereby improving the wrapping effect of the equipment. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a tray-loading and stretching film equipment as described in Embodiment 1;

[0035] Figure 2 This is a schematic diagram of the arrangement of the support plate and blade described in Embodiment 1;

[0036] Figure 3 This is a schematic diagram of the bidirectional positioning component and winding component described in Embodiment 1;

[0037] Figure 4 This is a schematic diagram of a tray-loading and wrapping film equipment as described in Embodiment 2.

[0038] In the diagram: 1. Frame; 11. Support component; 12. Caster wheel; 2. Support plate; 21. Front support plate; 22. Rear support plate; 23. Oval hole; 231. First oval hole; 232. Second oval hole; 233. Fixing rod; 3. Wrapping assembly; 31. Rotating arm; 311. Horizontal part; 312. Vertical part; 313. Drum; 314. Stretch film; 32. Connecting plate; 33. Drive motor; 34. Shaft; 35. Fixed base; 36. Drive wheel; 37. Driven wheel; 38. Rotating disk; 4. Material; 5. Bidirectional positioning assembly; 51. Horizontal positioning plate; 52. Vertical positioning plate; 521. Adjustment hole; 6. Cutting assembly; 61. Blade; 8. Extension plate; 81. Positioning hole; 9. Electrode plate. Detailed Implementation

[0039] The technical solutions of various embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Example 1

[0041] Reference Figures 1-2 This application discloses a device for loading and unloading stretch film 314, including a frame 1, on which parallel support plates 2 are provided; the support plates 2 include a front support plate 21 and a rear support plate 22; a gap is provided between the front support plate 21 and the rear support plate 22 for the stretch film 314 to pass through.

[0042] The bidirectional positioning component 5 is fixed on the rear support plate 22 and includes a transverse positioning plate 51 and a longitudinal positioning plate 52 arranged at right angles. The transverse positioning plate 51 is used to perform transverse positioning of the material 4 to be wrapped and placed on the support plate 2, and the longitudinal positioning plate 52 is used to perform longitudinal positioning of the material 4 to be wrapped and placed on the support plate 2.

[0043] The wrapping assembly 3 is fixed on the frame 1 and is used to drive the wrapping film roll 313 to wind around the material to be wrapped 4 in the gap between the front support plate 21 and the rear support plate 22, so as to wrap the wrapping film 314 on the wrapping film roll 313 onto the material to be wrapped 4.

[0044] The cutting component 6 is used to cut the stretch film 314 when picking up the tray material 4 that has been wrapped.

[0045] Specifically, refer to Figure 1The frame 1 is the basic support structure of the entire equipment, and is generally made of metal, such as steel, which has high strength and stability. Support members 11 and casters 12 are located at the four corners of the bottom of the frame 1. The support members 11 can be screw-type support feet; by rotating the screw, the support height can be changed to support and level the equipment. The screw-type support members 11, together with the casters 12, allow the height of the support rods to be adjusted when the equipment is moved to a suitable position, providing support for the equipment while ensuring that the equipment remains level and guaranteeing the stability of the working environment.

[0046] Reference Figure 2 The support plate 2 includes a front support plate 21 and a rear support plate 22, which are arranged in parallel on the frame 1, and there is a gap between them for the wrapping film 314 to pass through. The support plate 2 is provided with an oblong hole 23, which includes a first oblong hole 231 and a second oblong hole 232. The first oblong hole 231 is located on the front support plate 21, and the second oblong hole 232 is located on the rear support plate 22 and is adapted to the transverse positioning plate 51. Compared to ordinary circular holes, the oval hole 23 allows the transverse positioning plate 51 to be flexibly adjusted within a certain range, thus adapting to materials 4 of different specifications. The first oval hole 231 on the front support plate 21 not only facilitates the adjustment of the position of the front support plate 21, but also allows adjustment of the position of the blade 61 on the front support plate 21, making it easier to cut materials 4 of different specifications. The position of the transverse positioning plate 51 can be determined through the second oval hole 232 on the rear support plate 22, ensuring that the material 4 does not shift during the wrapping of the wrapping film 314. The rear support plate 22 is provided with an extension plate 8 for tensioning the wrapping film 314. The extension plate 8 is provided with a positioning hole 81, and the rear support plate 22 has a matching screw hole. By passing a bolt through the positioning hole 81 and the screw hole, the extension length of the extension plate 8 can be adjusted, thereby changing the size of the gap between the front support plate 21 and the rear support plate 22, so that the support plate 2 can stably support materials 4 of different specifications. For example, for smaller materials 4, the extension plate 8 can extend to a longer length, reducing the gap between the front support plate 21 and the rear support plate 22. This ensures that the support plate 2 can provide stable support for the material 4 when the wrapping assembly 3 is wrapping the stretch film 314 onto the material 4. The cutting assembly 6 includes a blade 61. The front support plate 21 has a convex structure, and the blade 61 is located on the outer extension of the front support plate 21. After the stretch film 314 is wrapped, the material 4 and the roll 313 holding the stretch film 314 are located on the upper and lower sides of the blade 61, respectively. When the material 4 is removed, the blade 61 can cut the stretch film 314. The blade 61 is generally made of sharp stainless steel and can easily cut the stretch film 314.

[0047] Reference Figure 3The winding assembly 3 includes a driving wheel 36 and a driven wheel 37 that mesh with each other. The driving wheel 36 is powered by a drive motor 33 to rotate. A rotating disk 38 is fixed on the driven wheel 37, and a rotating arm 31 is fixed on the rotating disk 38. To ensure the stability of the rotating arm 31 during rotation, a rotating shaft 34 is fixed on the driven wheel 37. One end of the rotating shaft 34 is connected to the frame 1 through a fixed seat 35, and the other end is connected to the rear support plate 22 through a fixed rod 233. The fixed rod 233 and the fixed seat 35 provide stable support for the rotating arm 31. To ensure sufficient welding length between the rotating disk 38 and the rotating arm 31, the rotating disk 38 can be designed as a square structure. The rotating arm 31 has an "L" shaped structure and includes a horizontal part 311 and a vertical part 312. A roll 313 for placing the winding film 314 is provided on the vertical part 312. The L-shaped rotating arm 31 provides a reasonable spatial layout for the wrapping assembly 3 when it moves in a circular motion around the material 4, facilitating the wrapping film 314 to tightly wrap the material 4. Operators can also observe the remaining amount of wrapping film 314 from the side and replenish it promptly. The drum 313 can be a cylindrical metal shaft with a smooth surface, reducing friction between the wrapping film 314 and the drum 313, allowing the wrapping film 314 to be released smoothly. The drive motor 33 is connected to the frame 1 via a connecting plate 32, which is typically fixed to the frame 1 by welding or bolting. The drive motor 33 can be a servo motor, capable of precisely controlling speed and torque. When the drive motor 33 starts, it drives the driving wheel 36 and its meshing driven wheel 37 to rotate, thereby driving the rotating arm 31 connected to the rotating disk 38 to perform a circular motion, causing the wrapping film 314 to tightly wrap the material 4.

[0048] Reference Figure 3 The bidirectional positioning assembly 5 includes a transverse positioning plate 51 and a longitudinal positioning plate 52. The transverse positioning plate 51 can move within the second oblong hole 232 of the rear support plate 22 to adjust its position to accommodate materials 4 of different specifications. The longitudinal positioning plate 52 has evenly distributed adjustment holes 521, and the side wall of the transverse positioning plate 51 has screw holes that match the adjustment holes 521. For materials 4 of different specifications, the displacement of the material 4 can be limited by adjusting the position of the longitudinal positioning plate 52. When the longitudinal positioning plate 52 is adjusted to a suitable position, bolts are passed through the adjustment holes 521 and the screw holes to lock the longitudinal positioning plate 52 and the transverse positioning plate 51.

[0049] The implementation principle of this embodiment is as follows: The tray-loading stretch film 314 equipment, through the reasonable arrangement of the frame 1, support plate 2, wrapping component 3, cutting component 6, and bidirectional positioning component 5, uses the bidirectional positioning component 5 to limit the position of the material 4, thereby improving the wrapping effect of the stretch film 314 and avoiding the problem of poor wrapping effect caused by inaccurate positioning of the material 4. At the same time, the blade 61 on the support plate 2 can directly cut the stretch film 314 after it is wrapped, without the need for additional tools, simplifying the operation process and improving packaging efficiency and quality; the support component 11 and casters 12 at the bottom of the equipment facilitate the movement and fixation of the equipment, enhancing its practicality and flexibility.

[0050] Example 2

[0051] Reference Figure 4 The difference between this embodiment and Embodiment 1 is that the lower surface of the front support plate 21 is provided with electrode plates 9 for adsorbing the wrapping film 314. After the material 4 is wound, when the material 4 is removed, the roll 313 containing the wrapping film 314 and the material 4 are respectively located on the upper and lower sides of the front support plate 21, so that the blade 61 cuts the wrapping film 314. The cut wrapping film 314 is adsorbed by the electrode plates 9 on the front support plate 21, so that the wrapping film 314 does not need to be manually controlled when the material 4 is wound again, which facilitates subsequent operations and better control of the state of the wrapping film 314.

[0052] The implementation principle of this embodiment is as follows: After the electrode sheet 9 is connected to a high voltage, an electric field will be formed around the electrode sheet 9. When the wrapping film 314 approaches the electrode sheet 9, it will be attracted to the electrode sheet 9 due to electrostatic induction, which makes it convenient for subsequent equipment to wrap the material 4 with the wrapping film 314.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this application.

Claims

1. A tray-loading and stretching film equipment, characterized in that, Includes a frame (1), on which parallel support plates (2) are provided; the support plates (2) include a front support plate (21) and a rear support plate (22); a gap is provided between the front support plate (21) and the rear support plate (22) for the stretch film (314) to pass through; A bidirectional positioning assembly (5) is fixed on the rear support plate (22) and includes a transverse positioning plate (51) and a longitudinal positioning plate (52) arranged at right angles. The transverse positioning plate (51) is used to perform transverse positioning on the material (4) to be wrapped on the support plate (2) and the longitudinal positioning plate (52) is used to perform longitudinal positioning on the material (4) to be wrapped on the support plate (2). The wrapping assembly (3) is fixed on the frame (1) and is used to drive the wrapping film roll (313) to wind around the material to be wrapped (4) in the gap between the front support plate (21) and the rear support plate (22) with the material to be wrapped (4) as the center, so as to wrap the wrapping film (314) on the wrapping film roll (313) onto the material to be wrapped (4); The cutting component (6) is used to cut the stretch film (314) when the tray material (4) that has been wrapped is picked up.

2. The tray-wrapping film (314) equipment according to claim 1, characterized in that, The support plate (2) is provided with an oval hole (23), which includes a first oval hole (231) and a second oval hole (232). The first oval hole (231) is located on the front support plate (21), and the second oval hole (232) is located on the rear support plate (22) and is adapted to the transverse positioning plate (51).

3. The equipment for loading and wrapping film (314) onto trays according to claim 1, characterized in that, The winding assembly (3) includes a driving wheel (36) and a driven wheel (37) that mesh with each other. The driving wheel (36) is powered by a drive motor (33) to rotate. A rotating disk (38) is fixed on the driven wheel (37), and a rotating arm (31) is fixed on the rotating disk (38).

4. The tray-wrapping film (314) equipment according to claim 3, characterized in that, The rotating arm (31) has an "L" shaped structure. The rotating arm (31) includes a horizontal part (311) and a vertical part (312). The vertical part (312) is provided with a roll (313) for placing the wrapping film (314).

5. The tray-wrapping film (314) equipment according to claim 1, characterized in that, The longitudinal positioning plate (52) is provided with adjustment holes (521) evenly distributed, and the side wall of the transverse positioning plate (51) is provided with screw holes that are compatible with the adjustment holes (521).

6. The tray-wrapping film (314) equipment according to claim 1, characterized in that, The rear support plate (22) is provided with an extension plate (8) for tensioning the winding film (314).

7. The tray-wrapping film (314) equipment according to claim 6, characterized in that, The extension plate (8) is provided with a positioning hole (81) for adjusting the extension length of the extension plate (8), and the rear support plate (22) is provided with a screw hole that matches the positioning hole (81).

8. The tray-wrapping film (314) equipment according to claim 1, characterized in that, The cutting assembly (6) includes a blade (61), the front support plate (21) has a "convex" structure, and the blade (61) is located on the outer extension of the front support plate (21).

9. The equipment for loading and wrapping film (314) onto trays according to claim 1, characterized in that, The bottom of the frame (1) is provided with a support (11) and casters (12).

10. The tray-wrapping film (314) equipment according to claim 1, characterized in that, The lower surface of the front support plate (21) is provided with an electrode sheet (9) for adsorption and winding film (314).

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