Packing belt deviation prevention mechanism of packer

Abstract

The utility model discloses a packing belt deviation prevention mechanism of a packing machine, which comprises a machine body, a portal frame is fixed in a packing working area at the top of the machine body, and deviation prevention limiting frames are respectively arranged at the top, the left side and the right side of the portal frame; each deviation-preventing limiting frame comprises a front guide plate, a rear guide plate and a connecting plate fixedly connected to the top area between the guide plates. According to the technical scheme, the servo telescopic rod is matched with the photoelectric distance sensor to form a dynamic adjusting mechanism, the position of a packed object can be sensed in real time, the guide plate is driven to move, a bundling opening of the arc-shaped guide piece is made to be close to objects of different sizes, the track of a packing belt is effectively restrained, and deviation and loosening are avoided. The inwards-contracted curved surface design of the arc-shaped guide pieces guides the packing belt to be collected towards the center, and the winding compactness and uniformity are improved. The whole scheme can adapt to special-shaped objects and continuous operation scenes without manual intervention, and the packaging efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of packing machine equipment, specifically to a packing strap anti-deviation mechanism for a packing machine. Background Technology

[0002] In existing strapping machine technology, strapping tape is prone to deviation when wrapping the packaged item, leading to loose packaging, material waste, and reduced work efficiency. Traditional equipment mostly relies on fixed guide structures, which are difficult to adapt to packaged items of different sizes and shapes (such as cuboids, cylinders, or irregularly shaped parts). This deviation is particularly prominent on automated production lines due to object positional deviations or unstable conveying. Although some equipment uses manual adjustment or simple sensor assistance, the response speed is slow and the accuracy is insufficient, making it impossible to dynamically adjust the guide path in real time. Existing technology lacks an intelligent anti-deviation mechanism that can automatically sense the size and position of the object and adjust the guide trajectory in real time. Therefore, those skilled in the art propose a strapping tape anti-deviation mechanism for strapping machines. Utility Model Content

[0003] The purpose of this utility model is to provide a technical solution for an anti-deviation mechanism of the strapping tape in a strapping machine, thereby addressing the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following:

[0004] The machine includes a fuselage, and a gantry frame is fixed to the top packaging work area of ​​the fuselage. An anti-deviation limiting frame is provided on the top and left and right sides of the gantry frame.

[0005] Each of the anti-deviation limiting frames includes two guide plates, a connecting plate fixedly connected to the top area between the guide plates, and a servo telescopic rod fixed to the bottom surface of the connecting plate. A photoelectric distance sensor is fixed at the bottom position of the side of the guide plates that are far apart from each other, and an arc-shaped guide plate is fixedly connected at the bottom position of the side of the guide plates that are close to each other.

[0006] The telescopic rod ends of the servo telescopic rod are connected to the top surface and the left and right sides of the gantry, respectively. The arc-shaped guide plates have openings between each other for the packing strap to pass through, and the upper opening between the arc-shaped guide plates is larger than the lower opening, which is used to guide the packing strap's gathering trajectory.

[0007] As a preferred embodiment of this utility model, two support columns are fixedly connected to the top of each side of the guide plates that are close to each other.

[0008] As a preferred embodiment of this utility model, the guide plates are spaced apart to allow the packing straps to pass through.

[0009] As a preferred embodiment of this utility model: the sensing end of the photoelectric distance sensor is flush with the inner end face of the guide plate, and is used to monitor the side wall of the packaged object in the packaging work area, so that the inner end face of the guide plate contacts the side wall of the packaged object.

[0010] As a preferred embodiment of this utility model: the arc-shaped guide plate is located in the inner region of the gantry frame, and the support column and connecting plate are located in the outer region of the gantry frame.

[0011] As a preferred embodiment of this utility model, the arc-shaped guide pieces have a space that gradually contracts inwards relative to each other.

[0012] As a preferred embodiment of this utility model, the guide plate and the arc-shaped guide piece are both arranged in a front-to-back mirror symmetrical manner with the central axis of the gantry as the base point.

[0013] As a preferred embodiment of this utility model: a belt feeding track is movably arranged in the inner cavity of the gantry frame, and multiple drive wheels for driving the belt feeding track are rotatably arranged in the inner cavity of the gantry frame.

[0014] As a preferred embodiment of this utility model: a packing strap tray is installed on the left side wall of the machine body, and universal wheels are installed at the four bottom corners of the machine body.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] In this technical solution, a servo telescopic rod, in conjunction with a photoelectric distance sensor, forms a dynamic adjustment mechanism. This mechanism can sense the position of the object being packaged in real time and drive the guide plate to move. This allows the converging opening of the arc-shaped guide plate to approach objects of different sizes, effectively constraining the packing strap's trajectory and preventing deviation or loosening. The inward-curving surface design of the arc-shaped guide plate guides the packing strap towards the center, improving the tightness and uniformity of the wrapping. The overall solution requires no manual intervention and can adapt to irregularly shaped objects and continuous operation scenarios, improving packaging efficiency and quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the packing machine;

[0019] Figure 2 This is a schematic diagram of the track frame;

[0020] Figure 3This is a schematic diagram of the disassembled track frame;

[0021] Figure 4 A schematic diagram of the frame designed to prevent deviation.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Machine body; 2. Gantry frame; 3. Anti-deviation limiting frame; 31. Guide plate; 32. Photoelectric distance sensor; 33. Support column; 34. Connecting plate; 35. Servo telescopic rod; 36. Arc-shaped guide plate; 4. Belt feed rail; 5. Drive wheel. Detailed Implementation

[0024] To provide a clearer explanation and description of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.

[0025] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of each embodiment. Specific details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0026] Example 1: The anti-deviation mechanism of this strapping machine includes a machine body 1. A gantry frame 2 is fixed to the top of the machine body 1 in the strapping working area. Anti-deviation limiting frames 3 are provided on the top and left and right sides of the gantry frame 2. The anti-deviation limiting frame 3 consists of two guide plates 31, one at the front and one at the back. The top of the guide plates 31 is fixedly connected by a connecting plate 34. A servo telescopic rod 35 is installed on the bottom surface of the connecting plate 34. The telescopic rod ends of the servo telescopic rod 35 are connected to the top and left and right sides of the gantry frame 2, respectively. A photoelectric distance sensor 32 is fixed to the bottom of the guide plates 31 on the side furthest from each other. Its sensing end is flush with the inner end face of the guide plate 31, and is used to monitor the side wall position of the item being strapped in the strapping working area. An arc-shaped guide piece 36 is connected to the bottom of the guide plates 31 on the side closest to each other. The arc-shaped guide piece 36 is located in the inner area of ​​the gantry frame 2 and forms an opening that gradually narrows inward. The distance between the upper openings is greater than the distance between the lower openings, which is used to guide the strapping band gathering trajectory. A support column 33 is fixed to the top of the guide plates 31 on the side closest to each other. The connecting plate 34 and the support column 33 are located in the outer area of ​​the gantry frame 2. When the packaged item enters the work area, the photoelectric distance sensor 32 detects the position of its side wall in real time. The servo telescopic rod 35 adjusts the spacing of the guide plate 31 according to the detection data so that the inner end face contacts the side wall of the packaged item. The arc-shaped guide plate 36 guides the packing strap to the correct position through the gradually narrowing opening to avoid deviation.

[0027] Example 2: Based on Example 1, a feeding track 4 is movably installed inside the gantry 2, and its operation is achieved through multiple drive wheels 5. A strapping reel is installed on the left side wall of the machine body 1, and casters are installed at the four corners of the bottom. After the strapping is drawn from the strapping reel, it is conveyed to the strapping work area via the feeding track 4. When the strapping enters the opening formed by the arc-shaped guide plate 36, if the strapping deviates from the track due to the irregular shape or positional deviation of the object being packaged, the photoelectric distance sensor 32 immediately detects the deviation value, and the servo telescopic rod 35 drives the guide plate 31 to move synchronously, so that the contraction opening of the arc-shaped guide plate 36 is aligned with the strapping path in real time. For example, when the object being packaged is a rectangular carton, the guide plate 31 adjusts the spacing according to the width of the carton, and the arc-shaped guide plate 36 guides the strapping to the center position of the carton through its inwardly contracting curved surface.

[0028] Example 3: For irregularly shaped objects to be packaged (such as cylindrical or trapezoidal objects), the anti-deviation mechanism achieves precise guidance through dynamic adjustment. Taking a cylindrical object as an example, after the photoelectric distance sensor 32 detects the curved surface of the object, the servo telescopic rod 35 drives the guide plate 31 to move inward, so that the contraction opening of the arc-shaped guide piece 36 fits the curvature of the cylindrical surface. When the packing strap passes through the arc-shaped guide piece 36, it is constrained by the curved surface and automatically wraps around the circumference of the cylinder, avoiding loosening or deviation. For trapezoidal objects, the guide plate 31 adjusts its inclination according to the angle of the trapezoidal hypotenuse, and the arc-shaped guide piece 36 adapts to the trapezoidal contour through an asymmetrical contraction opening, ensuring that the packing strap remains tightly fitted in the hypotenuse area. The design of the support column 33 and the connecting plate 34 located on the outside of the gantry 2 ensures structural stability and avoids interference with the movement path of the packing strap.

[0029] Example 4: In an automated production line, the anti-deviation mechanism and control system work together to achieve closed-loop control. The photoelectric distance sensor 32 transmits the detected data to the controller, which calculates the movement of the guide plate 31 according to a preset algorithm and drives the servo telescopic rod 35 to perform adjustments. For example, when the packaged items are a continuously conveying flow of cartons, the system tracks the position and size of each carton in real time and dynamically adjusts the opening spacing and angle of the arc-shaped guide plate 36. If a carton shifts laterally due to conveying deviation, the guide plate 31 immediately moves in the opposite direction of displacement, guiding the strapping back to the center of the carton through the contraction opening of the arc-shaped guide plate 36. Simultaneously, the drive wheel 5 of the feeding track 4 adjusts its speed based on the strapping tension feedback to ensure that the strapping conveying and anti-deviation actions are synchronized, preventing the strapping from becoming loose or breaking due to speed mismatch.

[0030] Example 5: For special application scenarios (such as humid or dusty environments), the anti-deviation mechanism adopts a protective design. The surfaces of the guide plate 31 and the arc-shaped guide piece 36 are coated with a wear-resistant and corrosion-resistant coating, the photoelectric distance sensor 32 is equipped with a dust cover, and the servo telescopic rod 35 adopts a sealed structure. For example, on a food packaging line, the anti-deviation mechanism needs to frequently come into contact with moist packaging materials. The curved surface design of the arc-shaped guide piece 36 not only guides the packing strap but also reduces moisture adhesion through a hydrophobic coating. When the photoelectric distance sensor 32 detects signal attenuation caused by water mist, the system automatically switches to a backup sensor or initiates a cleaning procedure to ensure monitoring accuracy. The sealed design of the servo telescopic rod 35 prevents dust from entering the internal mechanism, extending its service life.

[0031] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows: The gantry frame 2 at the top of the machine body 1 provides a support frame for the packaging work area. The anti-deviation limiting frames 3 installed on its top and left and right sides are connected to the gantry frame 2 through servo telescopic rods 35. When the item to be packaged enters the work area, the photoelectric distance sensor 32 monitors the position of the side wall of the item in real time and transmits the detection signal to the control system. The control system calculates the movement of the guide plate 31 according to the preset logic and drives the servo telescopic rods 35 to extend and retract, adjusting the spacing of the guide plates 31 so that the inner end face contacts the side wall of the item to be packaged.

[0032] The guide plates 31, with their curved guide pieces 36 positioned close to each other on one side, form an inwardly contracting opening. The strapping, after being output from the feed track 4, passes through this opening and is constrained towards the center by the curved surface of the guide piece 36. The larger upper opening allows the strapping to enter smoothly, while the smaller lower opening restricts its lateral deviation. If the size or position of the item being packaged changes, the photoelectric distance sensor 32 continuously monitors and provides feedback. The servo telescopic rod 35 dynamically adjusts the position of the guide plates 31, ensuring that the opening of the curved guide piece 36 is always aligned with the strapping path. The support column 33 provides structural support for the guide plates 31, and the connecting plate 34 integrates the various components and serves as the mounting base for the servo telescopic rod 35. Both are located outside the gantry 2 to avoid interfering with the movement of the strapping. After passing through the curved guide piece 36, the strapping wraps around the item along a predetermined trajectory. The drive wheel 5 of the feed track 4 adjusts its speed according to the strapping tension to maintain conveying stability. The strapping reel on the left side of the machine body 1 provides the strapping material, and the bottom casters support the movement of the equipment. The entire process achieves the anti-deviation function of the strapping material through mechanical linkage and sensor feedback, adapting to the packaging of different shapes and sizes of items.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A strapping tape anti-deviation mechanism for a strapping machine, comprising a body (1), characterized in that: A gantry frame (2) is fixed to the top packaging work area of ​​the machine body (1), and an anti-deviation limiting frame (3) is provided on the top and left and right sides of the gantry frame (2). The anti-deviation limiting frame (3) includes two guide plates (31) at the front and back, a connecting plate (34) fixedly connected to the top area between the guide plates (31), and a servo telescopic rod (35) fixed to the bottom surface of the connecting plate (34). A photoelectric distance sensor (32) is fixed at the bottom position of the surface of the guide plates (31) on the side away from each other, and an arc-shaped guide plate (36) is fixedly connected at the bottom position of the side of the guide plates (31) that are close to each other. The telescopic rod ends of the servo telescopic rod (35) are connected to the top surface and the left and right sides of the gantry (2) respectively. The arc-shaped guide pieces (36) have openings between each other for the packing strap to pass through, and the upper opening between the arc-shaped guide pieces (36) is larger than the lower opening, which is used to guide the packing strap's gathering trajectory.

2. The anti-deviation mechanism for the strapping tape of the strapping machine according to claim 1, characterized in that: Two support columns (33) are fixedly connected to the top of each side of the guide plates (31) that are close to each other.

3. The anti-deviation mechanism for the strapping tape of the strapping machine according to claim 1, characterized in that: The guide plates (31) are spaced apart to allow the packing straps to pass through.

4. The anti-deviation mechanism for the strapping tape of the strapping machine according to claim 1, characterized in that: The sensing end of the photoelectric distance sensor (32) is flush with the inner end face of the guide plate (31) to monitor the side wall of the packaged item within the packaging work area, thereby allowing the inner end face of the guide plate (31) to contact the side wall of the packaged item.

5. The anti-deviation mechanism for the strapping tape of the strapping machine according to claim 2, characterized in that: The arc-shaped guide plate (36) is located in the inner region of the gantry (2), and the support column (33) and connecting plate (34) are located in the outer region of the gantry (2).

6. The anti-deviation mechanism for the strapping tape of the strapping machine according to claim 1, characterized in that: The arc-shaped guide pieces (36) have a space that gradually contracts inward between each other.

7. The anti-deviation mechanism for the strapping tape of the strapping machine according to claim 1, characterized in that: The guide plate (31) and the arc-shaped guide piece (36) are both set in a mirror-symmetrical arrangement with the central axis of the gantry (2) as the base point.

8. The anti-deviation mechanism for the strapping tape of the strapping machine according to claim 1, characterized in that: The inner cavity of the gantry (2) is provided with a conveyor belt track (4), and the inner cavity of the gantry (2) is provided with multiple drive wheels (5) that drive the conveyor belt track (4) to rotate.

9. The anti-deviation mechanism for the strapping tape of the strapping machine according to claim 1, characterized in that: A packing strap tray is installed on the left side wall of the body (1), and universal wheels are installed at the four bottom corners of the body (1).

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