A vertical film wrapping machine film roll guard

Abstract

The utility model relates to packing machinery technical field discloses a vertical type film wrapping machine film roll protection device, including base, support plate, fixed in the film roll seat and winding film rod of support plate. Its core lies in, including the abutment sleeve of setting on winding film rod, be equipped with the installation shell of containing spring and inserting rod on abutment sleeve, inserting rod can automatically insert film roll seat, realize the axial and radial double locking of film roll, at the same time, the device still includes the scissor lifting rod of connecting between base and support plate, this lifting rod is driven by hydraulic rod, can conveniently drive support plate and film roll whole automation lifting. The utility model discloses through above -mentioned locking and the integrated design of lifting, effectively solved the film roll fixing unstable and artificial height adjustment inconvenient problem in the prior art, has the beneficial effect of protection stable and reliable, lifting convenient, significantly improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a protective device for film rolls of a vertical wrapping machine. Background Technology

[0002] Vertical wrapping machines are a key type of automated packaging equipment in modern industrial production, especially in industries such as logistics, food, and building materials. Their core function is to wrap goods or products with large-size, heavy-duty film rolls to achieve protection, fixation, and aesthetic appeal.

[0003] To ensure continuous and stable production, the film roll must be reliably secured to the frame. Traditional equipment typically employs simple axial limiting structures, such as baffles or locking nuts, to prevent lateral movement of the film roll. However, when the wrapping machine operates at high speeds, the film roll rotates rapidly and releases the packaging film. The enormous rotational inertia and vibration make axial limiting alone insufficient. This often leads to radial swaying or loosening of the film roll, affecting not only the tension and uniformity of the wrapping film, resulting in decreased product packaging quality, but also, in severe cases, causing the film roll to detach, leading to production interruptions and safety accidents.

[0004] Furthermore, because film rolls are typically very heavy, existing fixing devices often require operators to perform arduous manual handling and alignment when replacements are needed or when adjusting the working height of the film rolls to meet different packaging requirements. This process is not only labor-intensive and inefficient, but also poses significant safety hazards to operators during the lifting and securing of heavy objects.

[0005] In summary, existing vertical wrapping machines generally face a core technical challenge in film roll protection: the lack of an integrated protective device that can both ensure absolute stability of the film roll during high-speed operation and enable quick and convenient installation and adjustment. This deficiency directly affects production efficiency, product quality, and operational safety.

[0006] Therefore, this utility model proposes a protective device for film rolls of vertical wrapping machines to overcome the shortcomings of existing technologies. Utility Model Content

[0007] In view of the problems in the existing technology of vertical wrapping machine film roll protection devices, such as unstable film roll fixing leading to easy displacement during high-speed rotation, and the reliance on manual height adjustment during film roll replacement, which is inconvenient and inefficient, this utility model aims to provide a vertical wrapping machine film roll protection device with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a film roll protection device for a vertical wrapping machine, including: a base, a support plate, a film roll seat, and a film winding rod; as well as an abutment sleeve and a scissor lifting rod.

[0009] The membrane roll holder is fixedly connected to the support plate, and the membrane winding rod is rotatably inserted through the membrane roll holder.

[0010] Furthermore, the abutment sleeve is fitted onto the film winding rod, and a mounting shell is fixedly connected to it. A plug rod is slidably connected inside the mounting shell, and a spring is connected between the plug rod and the mounting shell. Under the elastic force of the spring, the plug rod can be inserted into the film roll seat. The scissor lift rod is connected between the base and the support plate to drive the support plate to lift and lower.

[0011] Preferably, a limiting plate is also fixedly connected inside the mounting housing, the limiting plate being used to limit the ejection stroke of the insertion rod.

[0012] Preferably, sliding grooves are provided at corresponding positions of the base and the support plate, and one end of the scissor lift rod is hinged to the base, while the other end is slidably connected to the sliding groove of the support plate.

[0013] Preferably, the device further includes a hydraulic rod and a connecting rod, the output end of the hydraulic rod being hinged to the connecting rod, and the connecting rod being fixedly connected to the middle hinge point of the scissor lift rod.

[0014] Preferably, the top of the base is provided with a sliding groove for the connecting rod to move, and the connecting rod is slidably connected in the sliding groove.

[0015] Preferably, the device further includes a control device electrically connected to the hydraulic rod.

[0016] Preferably, the connection between the support plate and the membrane roll holder is a screw-fixed connection.

[0017] Preferably, there are two abutment sleeves, which are respectively inserted from both ends of the winding rod and arranged facing each other along the axial direction.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by setting an abutment sleeve and a mounting shell with a spring and a plug rod thereon, the abutment sleeve is used to axially limit the film roll, and at the same time, the spring drives the plug rod to automatically insert into the preset hole of the film roll seat to achieve radial locking. This solves the problem in the prior art that the film roll is not firmly fixed and is prone to axial movement and radial swing when the material is fed at high speed, which affects the coating quality and production stability. It achieves the technical effect of double locking and stable protection of the film roll, ensuring the stability of the coating operation and the quality of the finished product.

[0019] 2. In this utility model, by setting a scissor lift driven by a hydraulic rod and installing a support plate carrying the film roll on the lifting structure, the problem of relying on manual handling, inconvenient operation, high labor intensity and low efficiency when changing or adjusting the height of the film roll in the prior art is solved. It achieves the technical effect of automatically, quickly and labor-savingly adjusting the height of the film roll, greatly improving the work efficiency of changing the film roll and reducing the labor intensity and safety risks of the operators. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a film roll protection device for a vertical wrapping machine proposed in this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a cross-sectional view of the mounting shell of a film roll protection device for a vertical wrapping machine proposed in this utility model; Legend: 1. Base; 2. Support plate; 3. Control device; 4. Film winding rod; 5. Film roll holder; 6. Screw; 7. Abutment sleeve; 8. Scissor lift rod; 9. Sliding groove; 10. Connecting rod; 11. Hydraulic rod; 12. Mounting shell; 13. Insert rod; 14. Spring; 15. Limiting plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in 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 a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Please refer to Figures 1 to 3 This utility model provides a protective device for film rolls of vertical wrapping machines, which aims to solve the problems of unstable film roll fixation, easy displacement during high-speed rotation, and inconvenient and inefficient manual height adjustment when changing film rolls in the prior art.

[0023] like Figure 1 As shown, the vertical wrapping machine film roll protection device includes a base 1 and a support plate 2 connected above the base 1 via a lifting mechanism. The base 1 provides a stable installation foundation for the entire device, while the support plate 2 is used to support the film roll and its related components to achieve overall lifting. A film roll seat 5 is fixedly connected to the support plate 2, and a film winding rod 4 is rotatably inserted into the film roll seat 5.

[0024] To achieve stable protection of the membrane roll, one of the core innovations of this device lies in its unique dual-locking structure. Please refer to... Figure 1 , Figure 2 and Figure 3 The structure includes an abutment sleeve 7 fitted onto the film winding rod 4, and a mounting shell 12 fixedly connected to the abutment sleeve 7. The internal structure of the mounting shell 12 is as follows: an insertion rod 13 is slidably connected inside, and a spring 14 is connected between the insertion rod 13 and the mounting shell 12. Under the elastic force of the spring 14, the end of the insertion rod 13 can automatically insert into the preset hole opened on the film roll seat 5, thereby forming a radial lock on the abutment sleeve 7. In addition, a limiting plate 15 is also fixedly connected inside the mounting shell 12. The limiting plate 15 is used to limit the pop-out stroke of the insertion rod 13 to ensure the stability and reliability of the locking action.

[0025] To enable convenient height adjustment of the membrane roll, another core innovation of this device lies in its integrated lifting structure. This lifting structure mainly includes a scissor lift rod 8 connecting the base 1 and the support plate 2. Please refer to the following for details. Figure 1 The core lifting structure will be described in detail below: The movement guidance of the lifting structure is achieved through sliding grooves 9 formed on the base 1 and the support plate 2. The movement relationship is as follows: one end of the scissor lift rod 8 is hinged to the base 1, and the other end is slidably connected to the sliding groove 9 at the bottom of the support plate 2. This structure, with one end hinged and the other end sliding, ensures that the support plate 2 can move vertically and smoothly. The lifting structure is driven by the hydraulic rod 11, the connecting rod 10, and the control device 3. Specifically, the power end of the hydraulic rod 11 is fixedly connected to the base 1, and its output end is hinged to the connecting rod 10. The connecting rod 10 is fixedly connected to the middle hinge point of the scissor lift rod 8. In order to guide the movement trajectory of the connecting rod 10, a sliding groove 9 is also formed on the top of the base 1. The connecting rod 10 is slidably connected to the sliding groove 9. When the control device 3, which is electrically connected to the hydraulic rod 11, is activated, the hydraulic rod 11 pushes the connecting rod 10 to move in the sliding groove 9, thereby driving the scissor lift rod 8 to extend and retract, realizing the lifting function.

[0026] Based on the above embodiments, the present invention may further include the following preferred technical solutions: In a preferred embodiment, to ensure the stability and maintainability of the connection between the support plate 2 and the membrane roll seat 5, the two are fixedly connected by screws 6. In a preferred embodiment, to achieve reliable axial bidirectional limiting of the membrane roll, two abutment sleeves 7 are used. These two abutment sleeves 7 are respectively inserted from both ends of the winding rod 4 and are arranged facing each other axially, so that the membrane roll is stably clamped between the two abutment sleeves 7. In a preferred embodiment, to facilitate the operation of the entire lifting process, the device also includes a control device 3. The control device 3 can be a control panel with integrated operation buttons, which is fixed on the base 1 in an easily accessible position and electrically connected to the hydraulic rod 11 through wires.

[0027] Working principle: When it is necessary to install and fix the film roll, the film roll is first placed on the winding rod 4. Then, the two abutment sleeves 7 are pushed to move towards each other along the axial direction of the winding rod 4 until they clamp the film roll from both sides. This action achieves axial positioning of the film roll. During this process, as the abutment sleeves 7 are in place, the insertion rods 13 inside the mounting shell 12 on them will automatically pop out under the elastic force of the spring 14 and accurately insert into the preset positioning holes on the film roll seat 5. This action forms a reliable radial lock on the abutment sleeves 7. Under the stroke limitation of the limiting plate 15, the locking structure is more stable. This dual protection structure of axial positioning and radial automatic locking works together to ensure that the film roll will not move or swing during subsequent high-speed feeding rotation, thus solving the technical problem of unstable film roll fixing.

[0028] When it is necessary to replace the membrane roll or adjust the working height, the operator activates the control device 3. The control device 3 drives the hydraulic rod 11 to move. The extension and retraction of the hydraulic rod 11 pushes the connecting rod 10 to make horizontal reciprocating motion in the sliding groove 9 at the top of the base 1. Since the connecting rod 10 is fixedly connected to the middle of the scissor lift rod 8, the horizontal movement of the connecting rod 10 will drive the scissor lift rod 8 to extend or retract. At the same time, the top end of the scissor lift rod 8 slides freely in the sliding groove 9 at the bottom of the support plate 2, thereby smoothly converting the horizontal driving force into the vertical lifting and lowering motion of the entire support plate 2. Finally, it drives the membrane roll seat 5 and the membrane roll above it to achieve automatic height adjustment. This process does not require manual handling and solves the problems of inconvenience and low efficiency in replacing membrane rolls.

[0029] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A protective device for film rolls of a vertical wrapping machine, comprising: Base (1); Support plate (2); The membrane roll holder (5) is fixedly connected to the support plate (2); A membrane winding rod (4) is rotatably inserted into the membrane roll holder (5). Its features are, The device also includes an abutment sleeve (7) and a scissor lift rod (8). The abutting sleeve (7) is sleeved on the film winding rod (4), and a mounting shell (12) is fixedly connected to the abutting sleeve (7). A plug rod (13) is slidably connected inside the mounting shell (12). A spring (14) is connected between the plug rod (13) and the mounting shell (12). The plug rod (13) can be inserted into the film roll seat (5) under the elastic force of the spring (14). The scissor lift rod (8) is connected between the base (1) and the support plate (2) and is used to drive the support plate (2) to rise and fall.

2. The film roll protection device for a vertical wrapping machine according to claim 1, characterized in that, A limiting plate (15) is also fixedly connected inside the mounting housing (12), and the limiting plate (15) is used to limit the pop-out stroke of the insertion rod (13).

3. The film roll protection device for a vertical wrapping machine according to claim 1, characterized in that, The base (1) and the support plate (2) are provided with sliding grooves (9) at corresponding positions. One end of the scissor lift rod (8) is hinged to the base (1), and the other end is slidably connected to the sliding groove (9) of the support plate (2).

4. The film roll protection device for a vertical wrapping machine according to claim 1, characterized in that, The device also includes a hydraulic rod (11) and a connecting rod (10). The power end of the hydraulic rod (11) is fixedly connected to the base (1), and its output end is hinged to the connecting rod (10). The connecting rod (10) is fixedly connected to the middle hinge point of the scissor lift rod (8).

5. The film roll protection device for a vertical wrapping machine according to claim 4, characterized in that, The top of the base (1) is provided with a sliding groove (9) for the connecting rod (10) to move, and the connecting rod (10) is slidably connected in the sliding groove (9).

6. The film roll protection device for a vertical wrapping machine according to claim 4, characterized in that, The device also includes a control device (3) which is electrically connected to the hydraulic rod (11).

7. The film roll protection device for a vertical wrapping machine according to claim 1, characterized in that, The support plate (2) and the membrane roll holder (5) are fixedly connected by screws (6).

8. The film roll protection device for a vertical wrapping machine according to claim 1, characterized in that, The number of abutment sleeves (7) is two. The two abutment sleeves (7) are respectively inserted from both ends of the winding rod (4) and are arranged facing each other along the axial direction.

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