Bogie for packaging machine

By using a screw and nut driven steering adjustment group on the packaging machine, precise steering and efficient transmission of paper bags are achieved, solving the problems of low steering efficiency and poor adaptability of existing packaging machines, and improving production continuity and packaging quality.

CN224225486UActive Publication Date: 2026-05-12FOSHAN LIHUA PACKAGING MASCH EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN LIHUA PACKAGING MASCH EQUIP CO LTD
Filing Date
2025-06-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing packaging machines suffer from low efficiency, poor adaptability, and high labor intensity in paper bag turning operations. Traditional turning devices are complex in structure and difficult to be compatible with paper bags of different specifications.

Method used

The steering adjustment assembly, driven by a screw and nut, allows the slide block to slide within the base frame via an adjustment handle, flexibly adjusting the position of the guide rollers to achieve precise steering of the paper bag, avoiding deviation and wrinkles. Its modular design facilitates integration into existing production lines.

Benefits of technology

It improves the continuity and efficiency of packaging production, reduces labor intensity, ensures precise paper bag turning, adapts to diverse packaging processes, reduces rework costs, and enhances packaging effectiveness.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224225486U_ABST
    Figure CN224225486U_ABST
Patent Text Reader

Abstract

The utility model discloses a bogie for a packaging machine, which relates to the technical field of packaging machines and comprises a frame, a first guide roller is rotatably connected to the rear side of the top of the frame, and second guide rollers are rotatably connected to two sides of the top of the frame. By the adoption of the structure, the steering mode of a traditional packaging machine is innovated, shutdown and calibration caused by overall steering of equipment are avoided, production continuity and efficiency are remarkably improved, manual intervention is reduced through multi-guide-roller automatic steering, labor intensity is lowered, quality problems caused by misoperation are avoided, rework cost is saved, and production efficiency is improved. Compatibility is enhanced through the flexible and adjustable structure, diversified packaging processes are adapted, smoothness and accuracy of a paper bag after steering are ensured through cooperative correction of the guide rollers, the length of a packaging bag film cannot be changed under the condition that the packaging bag film is located at any position through the design of the first guide roller, the second guide roller and the third guide roller in the steering frame, and the packaging effect and production benefits are effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of packaging machine technology, and specifically relates to a bogie for a packaging machine. Background Technology

[0002] In the automated production process of the packaging industry, the efficiency and flexibility of the bag turning operation are crucial to the smoothness of the production line. Currently, most packaging machines rely on overall mechanical turning or manual intervention to turn the bags, which has significant limitations. For example, in the food and daily necessities packaging process, the production line needs to frequently adjust the direction of the bags to adapt to different workstations (such as printing, sealing, and boxing). If the turning is completed by changing the overall direction of the packaging machine, not only will the equipment parameters need to be recalibrated, but it will also cause a short shutdown of the production line, significantly reducing production efficiency. On the other hand, manual turning increases labor intensity and is prone to problems such as bag misalignment and wrinkles, affecting packaging quality.

[0003] In existing technologies, some packaging machines are equipped with steering devices, but their structures are complex and their adaptability is poor. For example, traditional chain-type steering mechanisms require customized installation and are difficult to be compatible with paper bags of different specifications; turntable-type steering structures have problems such as large footprint and single steering angle, which cannot meet diverse packaging needs. Therefore, it is urgent to develop a packaging machine steering frame that is compact, easy to operate, and can flexibly adjust the steering angle of paper bags, so as to solve the pain points of cumbersome steering operation, low efficiency, and insufficient versatility in existing technologies, and improve the intelligence and automation level of packaging production lines. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a bogie for a packaging machine to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A steering frame for a packaging machine includes a frame, a first guide roller rotatably connected to the top rear side of the frame, second guide rollers rotatably connected to both sides of the top of the frame, a base frame fixedly installed on the front side of the frame, and a steering adjustment assembly movably installed inside the base frame.

[0007] The steering adjustment assembly includes a slide block and an adjusting component. The slide block is slidably connected to the inside of the base frame. The top of the slide block is obliquely mounted on a steering roller. A straightening guide roller is rotatably connected to one side of the top of the slide block. The adjusting component is rotatably connected to the inside of the base frame. The bottom of the slide block and the adjusting component are threadedly connected.

[0008] As a preferred technical solution, a feeding slot is provided at the upper rear side of the frame, and the first guide roller is located on the back of the frame and above the feeding slot.

[0009] As a preferred technical solution, a third guide roller is rotatably connected to the rear side of the top of the slide block, and the third guide roller is disposed between the lower inner ends of the first guide roller and the second guide roller.

[0010] As a preferred technical solution, a bending frame is rotatably connected to the lower end of the base frame near the straightening guide roller, and a discharge guide roller is rotatably connected to the outer end of the bending frame.

[0011] As a preferred technical solution, the adjusting component includes a lead screw and a nut. The nut is fixedly installed in the middle of the bottom of the slide block, and the lead screw is rotatably connected to the middle of the inside of the base frame. The lead screw and the nut are threadedly connected, and the outer end of the lead screw passes through the base frame.

[0012] As a preferred technical solution, the outer end of the lead screw is fixedly installed with an adjustment handle through the base frame, and the outer surface of the adjustment handle is provided with anti-slip protrusions.

[0013] As a preferred technical solution, the base frame has shafts fixedly installed at both ends, and the outer surface of the shafts is slidably connected to support sleeves. The top of the support sleeves and the bottom four corners of the slide block are fixedly connected.

[0014] In summary, the present invention has the following main advantages:

[0015] First, the steering frame of this packaging machine is based on a steering adjustment group driven by a screw and nut. The operator can turn the adjustment handle to drive the slide to slide within the base frame, flexibly adjusting the position of the third guide roller, the correcting guide roller and the steering slant roller to improve adaptability. After the packaging paper bag enters from the feed chute at the rear of the frame, it is guided by the first, second and third guide rollers, contacts the steering slant roller to change direction, the correcting guide roller calibrates the position in real time, and finally is discharged by the discharge guide roller. The combination of multiple guide rollers ensures that the paper bag turns without deviation or wrinkles. The shaft and the support sleeve ensure the stability of the slide. The modular design makes it easy to quickly integrate into the existing production line and is easy to install. At the same time, the film length will not change when the film is adjusted to any position.

[0016] Secondly, this bogie revolutionizes the traditional steering mode of packaging machines, avoiding downtime and recalibration caused by overall equipment steering, significantly improving production continuity and efficiency. The multi-guide roller automated steering reduces manual intervention, lowers labor intensity, avoids quality problems caused by operational errors, and saves rework costs. Its flexible and adjustable structure enhances compatibility and adapts to diverse packaging processes. Through guide roller collaborative correction, it ensures that the paper bag is flat and accurate after steering. The design of its bogie ensures that the length of the packaging film does not change in any position, effectively improving packaging effect and production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the bottom-view planar structure of this utility model;

[0019] Figure 3 This is a bottom-view three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a top view of the structure of this utility model.

[0021] Reference numerals in the attached drawings: 1. Frame; 2. First guide roller; 3. Steering adjustment group; 31. Slide; 32. Adjusting component; 321. Lead screw; 322. Nut; 323. Adjusting handle; 324. Shaft; 325. Supporting sleeve; 33. Steering slant roller; 34. Correcting guide roller; 35. Third guide roller; 4. Base frame; 5. Second guide roller; 6. Feed trough; 7. Bending frame; 8. Discharge guide roller. Detailed Implementation

[0022] Example

[0023] refer to Figures 1 to 4 A packaging machine steering frame according to this embodiment includes a frame 1, a first guide roller 2 rotatably connected to the top rear side of the frame 1, a second guide roller 5 rotatably connected to both sides of the top of the frame 1, a base frame 4 fixedly installed on the front side of the frame 1, and a steering adjustment group 3 movably installed inside the base frame 4.

[0024] The steering adjustment assembly 3 includes a slide block 31 and an adjusting component 32. The slide block 31 is slidably connected to the inside of the base frame 4. The top of the slide block 31 is obliquely mounted on the steering roller 33. A straightening guide roller 34 is rotatably connected to one side of the top of the slide block 31. The adjusting component 32 is rotatably connected to the inside of the base frame 4. The bottom of the slide block 31 and the adjusting component 32 are threadedly connected. During the application of this device, the steering frame of the packaging machine achieves the steering of the packaging paper bags through the coordinated operation of various components. The packaging paper bags enter from the rear side of the frame 1, are first guided by the first guide roller 2, and then smoothly transferred to the steering area with the assistance of the second guide rollers 5 on both sides of the top of the frame 1. The steering adjustment assembly 3 inside the base frame 4 is a solid... The core of the current steering mechanism is the adjusting component 32, which uses a screw 321 and nut 322 structure. When the outer end of the screw 321 is rotated, the slide 31 will slide horizontally within the base frame 4 because the screw 321 is threadedly connected to the nut 322 at the bottom of the slide 31. When the slide 31 slides, the position of the inclined steering roller 33 installed on it changes accordingly. When the paper bag contacts the inclined steering roller 33, the inclined surface of the roller generates a lateral thrust, forcing the paper bag to change its forward direction. At the same time, the straightening guide roller 34 on the slide 31 calibrates the position of the paper bag in real time to avoid deviation or wrinkles, ensuring that the paper bag is smoothly transported along the predetermined direction and finally discharged through the subsequent guide roller to complete the steering process.

[0025] refer to Figure 1A feeding slot 6 is provided at the upper rear side of the frame 1. The first guide roller 2 is located on the back of the frame 1 and above the feeding slot 6. A third guide roller 35 is rotatably connected to the top rear side of the slide block 31. The third guide roller 35 is located between the lower inner sides of the first guide roller 2 and the second guide roller 5. A bending frame 7 is rotatably connected to the lower side of the base frame 4 near the straightening guide roller 34. A discharge guide roller 8 is rotatably connected to the outer end of the bending frame 7. During the application of this device, the packaging paper bags are fed from the rear side of the frame 1, initially guided by the first guide roller 2, and then smoothly conveyed to the turning area with the assistance of the second guide rollers 5 on both sides of the top. The turning adjustment is located inside the base frame 4. The screw 321 and nut 322 of group 3 are the core of the steering mechanism. When the screw 321 is rotated, it cooperates with the nut 322 at the bottom of the slide block 31 to make it slide horizontally, which drives the inclined steering roller 33 to change position. When the paper bag contacts the steering roller 33, its inclined surface generates a lateral thrust to force the paper bag to turn. At the same time, the straightening guide roller 34 on the slide block 31 synchronously calibrates the position of the paper bag to avoid displacement or wrinkles. Finally, the paper bag is guided by the subsequent guide rollers to complete the turning. By adjusting the first guide roller 2, the second guide roller 5 and the third guide roller 35, it can be ensured that the film length will not change when the film is adjusted to any position.

[0026] refer to Figures 1-4 The adjusting component 32 includes a lead screw 321 and a nut 322. The nut 322 is fixedly installed in the middle of the bottom of the slide block 31. The lead screw 321 is rotatably connected to the middle of the interior of the base frame 4. The lead screw 321 and the nut 322 are threaded together. The outer end of the lead screw 321 passes through the base frame 4. An adjusting handle 323 is fixedly installed on the outer end of the lead screw 321 through the base frame 4. The outer surface of the adjusting handle 323 is provided with anti-slip protrusions. Shafts 324 are fixedly installed at both ends inside the base frame 4. Support sleeves 325 are slidably connected to the outer surface of the shafts 324. The top of the support sleeves 325 is fixedly connected to the four corners of the bottom of the slide block 31. During the application of this device, when the adjusting handle 323 is rotated, the anti-slip protrusions enhance the grip friction, driving the... The lead screw 321 of the base frame 4 rotates; because the lead screw 321 is threadedly engaged with the nut 322 fixed at the bottom of the slide block 31, the circular motion of the lead screw 321 is converted into the linear sliding of the slide block 31; the shafts 324 at both ends of the base frame 4 and the sliding sleeves 325 at the four corners of the bottom of the slide block 31 form a sliding pair, which not only constrains the movement trajectory of the slide block 31, but also disperses the force and enhances stability; when the slide block 31 slides, it synchronously drives the inclined steering roller 33 installed on it to change the angle, thereby realizing the stepless adjustment of the turning angle of the packaging paper bag, forming an efficient transmission chain from manual operation to mechanical execution. The bottom of the adjusting handle 323 is provided with a locking screw, which can be used to fix the adjusting handle 323, thereby stabilizing the positioning of the slide block 31.

[0027] Operating Principle and Advantages: During application, the bogie of this device achieves efficient steering and precise transmission of packaging paper bags. The steering adjustment group 3, as the core component, utilizes the transmission principle of the lead screw 321 and nut 322. Operators only need to rotate the adjustment handle 323 to drive the slide block 31 to slide smoothly within the base frame 4, thereby flexibly adjusting the slide block 31's sliding position. By adjusting the slide block 31's sliding position, the positions of the third guide roller 35, the corrective guide roller 34, and the steering slant roller 33 can be flexibly adjusted. This flexible position adjustment improves the overall adaptability of the device during application. When the packaging paper bag enters from the feed chute 6 at the rear of the frame 1, it is first guided by the first guide roller 2, the second guide roller 5, and the third guide roller 35, and then... When the inclined roller 33 contacts the paper bag, the paper bag changes its forward direction under the lateral thrust generated by the inclined surface of the inclined roller 33. During the process, the corrective guide roller 34 calibrates the position of the paper bag in real time and guides it to the discharge guide roller 8 for discharge. Under the combined transmission of multiple guide rollers, it can be ensured that the paper bag will not deviate or wrinkle during the turning process. The shafts 324 at both ends of the base frame 4 cooperate with the support sleeves 325 to not only ensure the stability of the slide 31 when sliding, but also enhance the adaptability of the bogie to packaging paper bags of different specifications. The modular design of the frame 1 and the base frame 4 allows the bogie to be quickly integrated into the existing packaging machine production line without large-scale modification of the main body of the packaging machine, making installation very convenient.

[0028] In practical applications, the design of this bogie completely changes the cumbersome operation mode of traditional packaging machines that require overall turning to change the direction of paper bag conveying. It avoids frequent downtime and parameter calibration caused by equipment turning, significantly improving the continuity and efficiency of packaging production. The turning process formed by the combination of various guide rollers greatly reduces manual intervention, effectively reducing the labor intensity of workers. It also avoids packaging quality problems caused by human error, saving significant rework costs. Furthermore, its flexible and adjustable design improves the overall compatibility of the device during application, enabling the production line to easily cope with diverse packaging process requirements. Through the correction mechanism of multi-guide roller collaborative operation, it ensures that the packaging paper bags remain flat and accurate after turning, improving packaging effect; Frame 1 The dimensions are as follows: length 600-800mm, width 400-600mm; first guide roller 2 and second guide roller 5 with diameters of 25-50mm and lengths 50-100mm longer than the maximum paper bag width, chrome-plated; lead screw 321 with diameter of 8-12mm, pitch of 3-5mm, lead of 12-20mm, trapezoidal thread; slide block 31 with a stroke of 100-200mm; angle adjustment range of the steering roller 33 from 30° to 60°; shaft 324 with a diameter of 12-16mm; clearance between the support sleeve 325 and shaft 324 of 0.05-0.1mm; adjusting handle 323 with a diameter of 50-80mm, anti-slip protrusions with a height of 1-1.5mm and a spacing of 3-5mm; tilt angle of the steering roller 33 adjustable from 0-45°; surface coating thickness of the straightening guide roller 34 of 2-3mm.

Claims

1. A bogie for a packaging machine, characterized in that: The frame includes a first guide roller rotatably connected to the top rear side of the frame, and second guide rollers rotatably connected to both sides of the top of the frame. A base frame is fixedly installed on the front side of the frame, and a steering adjustment group is movably installed inside the base frame. The steering adjustment assembly includes a slide block and an adjusting component. The slide block is slidably connected to the inside of the base frame. The top of the slide block is obliquely mounted on a steering roller. A straightening guide roller is rotatably connected to one side of the top of the slide block. The adjusting component is rotatably connected to the inside of the base frame. The bottom of the slide block and the adjusting component are threadedly connected.

2. The bogie for a packaging machine according to claim 1, characterized in that: The frame has a feed trough at the upper rear side, and the first guide roller is located on the back of the frame and above the feed trough.

3. The bogie for a packaging machine according to claim 1, characterized in that: A third guide roller is rotatably connected to the rear side of the top of the slide block, and the third guide roller is disposed between the lower inner ends of the first guide roller and the second guide roller.

4. The bogie for a packaging machine according to claim 1, characterized in that: A bending frame is rotatably connected to the lower end of the base frame near the straightening guide roller, and a discharge guide roller is rotatably connected to the outer end of the bending frame.

5. A bogie for a packaging machine according to claim 1, characterized in that: The adjusting component includes a lead screw and a nut. The nut is fixedly installed in the middle of the bottom of the slide block. The lead screw is rotatably connected to the middle of the inside of the base frame. The lead screw and the nut are threaded together, and the outer end of the lead screw passes through the base frame.

6. A bogie for a packaging machine according to claim 5, characterized in that: An adjustment handle is fixedly installed at the outer end of the lead screw through the base frame, and the outer surface of the adjustment handle is provided with anti-slip protrusions.

7. A bogie for a packaging machine according to claim 5, characterized in that: The base frame has shafts fixedly installed at both ends inside, and a support sleeve is slidably connected to the outer surface of the shaft. The top of the support sleeve is fixedly connected to the four corners of the bottom of the slide block.