Feeding guide structure for a paperboard forming apparatus
By introducing heating and humidification components into the cardboard forming equipment, combined with guiding components, the guiding problem caused by uneven cardboard humidity is solved, achieving stable cardboard conveying and efficient forming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN CHANGSHENG PACKAGING CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-07
AI Technical Summary
After prolonged stacking and storage, uneven humidity in cardboard can cause the fibers to soften or become brittle, leading to problems such as tearing, paper jams, and misalignment during the guiding process, increasing equipment wear and the scrap rate in subsequent processes.
The paperboard is conditioned using heating and humidification components. The humidity is detected by an infrared humidity meter, and the paperboard humidity is adjusted to 8%-12% using heating rollers and spray nozzles. It is then precisely guided by a guiding component.
It achieves uniformity of paperboard moisture content and stability of physical properties, reduces the risk of jamming, improves tensile strength and stiffness, reduces slippage and static interference, lowers scrap rate and equipment maintenance costs, and improves production efficiency.
Smart Images
Figure CN224467098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard forming technology, and in particular to a feeding guide structure for cardboard forming equipment. Background Technology
[0002] In the paperboard production process, the paperboard needs to go through a series of different processes. The paperboard needs to be transported between different processes by conveyor belts. The paperboard conveyor guide structure is usually composed of guide plates, which are used to prevent the paperboard from deviating or getting blocked when it is transported on the conveyor belt. By setting up guide plates, the paperboard is guided to be transported on the conveyor belt, so that the paperboard can be transported to the next process without being affected.
[0003] Cardboard is typically stacked and stored for extended periods before being formed and conveyed. Prolonged stacking and storage can cause deformation of the cardboard. For example, high humidity (moisture content > 12%) softens the cardboard fibers, reduces strength, and can lower tensile strength by 30%-40%. This makes it prone to tearing or jamming during guiding, and the surface water film reduces the coefficient of friction with the guide rollers, leading to slippage and deviation. Low humidity (moisture content < 8%) increases the cardboard's brittleness and reduces its stiffness, making it prone to edge damage or wavy bending. Deviation during guiding may exceed 5mm, and static electricity can interfere with sensors. Furthermore, uneven humidity can cause inconsistent expansion or contraction of the cardboard, generating internal stress and curling, leading to mismatch in guide rail spacing, increased equipment wear, higher downtime maintenance costs, and a significant increase in scrap rates in subsequent printing and bonding processes.
[0004] Therefore, a feeding guide structure for cardboard forming equipment is needed for use. Utility Model Content
[0005] The purpose of this utility model is to provide a feeding guide structure for a cardboard forming equipment to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding and guiding structure for a cardboard forming equipment, including an automatic feeding platform, a horizontally arranged automatic feeding conveyor belt on the automatic feeding platform, a guiding pretreatment component and a cardboard guiding component on the top of the automatic feeding platform, the cardboard guiding component being located at the discharge end of the automatic feeding platform, the guiding pretreatment component including a heating treatment component and a humidification treatment component, the heating treatment component and the humidification treatment component being located at the top of the automatic feeding platform, and the heating treatment component and the humidification treatment component being arranged adjacent to each other.
[0007] In a further technical solution, the heating treatment component includes a mounting base, two heating rollers, two drive motors, and two sliders. The mounting base is located on top of the automatic feeding table. The mounting base has two sliding grooves, and the two sliders are slidably connected in the two sliding grooves. Each sliding groove is provided with two symmetrically arranged drive cylinders. The telescopic ends of the two drive cylinders are connected to the sliders. The two ends of the two heating rollers are rotatably connected to the two sliders. The two drive motors are mounted on one of the sliders and are drive-connected to the heating rollers.
[0008] In a further technical solution, the heating roller is equipped with a built-in tubular electric heating element.
[0009] In a further technical solution, the humidification treatment component includes a support frame, a swing motor, a swing frame, a connecting pipe, and several spray nozzles. The support frame is located on top of the automatic feeding platform. The two ends of the swing frame are rotatably connected to the support frame. The swing motor is located on the support frame and is connected to the swing frame via transmission. Several spray nozzles are equally spaced on the swing frame, and the connecting pipe is connected to several spray nozzles.
[0010] A further technical solution is provided, wherein the cardboard guiding assembly includes two symmetrically arranged guide members, each of which includes a placement seat, a guide plate, an adjusting screw, and two limiting rods. The placement seat is located on top of the automatic feeding table, the adjusting screw is threadedly connected to the placement seat, the two limiting rods are symmetrically arranged on the guide plate and slide in cooperation with the placement seat, one end of the adjusting screw is rotatably connected to the guide plate, and the other end of the adjusting screw is provided with a turntable.
[0011] A further technical solution is that an arc-shaped plate is provided at the paper feed end of the guide plate.
[0012] The beneficial effects of this utility model are:
[0013] This invention detects the humidity of the cardboard using a handheld infrared hygrometer before guiding and conveying it. The cardboard is then placed on an automatic feeding conveyor belt, which moves it forward. When the cardboard's humidity is low, a heating treatment unit is activated to dry it. When the cardboard is too dry, a humidification unit is activated to moisturize it. This ensures that the cardboard is in an ideal state with uniform humidity and stable physical properties during forward conveying. ① Precise humidity control: Stabilizing the moisture content at 8%-12% avoids high-humidity softening and tearing or low-humidity brittle breakage, increasing tensile strength by 30%-50% and optimizing stiffness by 20%-40%; ② Stable shape: Eliminating the humidity difference (≤0.5%) between the upper and lower surfaces and internal stress, reducing crimp from 20mm / m to 3mm / m. The following features are provided: ① Guide offset < 0.5mm, reducing the risk of material jamming; ② Equipment compatibility: Surface friction coefficient is stable at 0.4-0.6, electrostatic voltage < 1kV, reducing slippage, adhesion and sensor mis-touch; ③ Quality and efficiency improvement: The scrap rate of subsequent printing, bonding and other processes is reduced from 15% to below 2%, equipment maintenance costs are reduced by 40%, and production efficiency is increased by 15%-25%. Then, the paperboard guide assembly guides the paperboard feeding, so that the paperboard is accurately conveyed forward to facilitate the subsequent paperboard forming process.
[0014] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0015] Figure 1 Schematic diagram of the three-dimensional structure of this utility model Figure 1 .
[0016] Figure 2 Schematic diagram of the three-dimensional structure of this utility model Figure 2 .
[0017] Figure 3 : A three-dimensional structural diagram of the heat treatment component of this utility model.
[0018] Figure 4 : A three-dimensional structural diagram of the humidification treatment component of this utility model.
[0019] Figure 5 : A three-dimensional structural diagram of the cardboard guide assembly of this utility model.
[0020] Figure label:
[0021] Automatic feeding table 1, automatic feeding conveyor belt 10, guiding pretreatment assembly 2, heating treatment component 21, mounting base 211, heating roller 212, drive motor 213, slider 214, chute 215, drive cylinder 216, humidification treatment component 22, support frame 221, swing motor 222, swing frame 223, connecting pipe 224, spray nozzle 225, cardboard guiding assembly 3, guide component 30, placement seat 31, guide plate 32, adjusting screw 33, limit rod 34, arc plate 35, turntable 36. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] Please refer to Figure 1-5 As shown; this utility model provides a feeding guide structure technical solution for a cardboard forming equipment: a feeding guide structure for a cardboard forming equipment includes an automatic feeding platform 1, on which a horizontally arranged automatic feeding conveyor belt 10 is provided. The top of the automatic feeding platform 1 is provided with a guide pretreatment component 2 and a cardboard guide component 3. The cardboard guide component 3 is located at the discharge end of the automatic feeding platform 1. The guide pretreatment component 2 includes a heating treatment component 21 and a humidification treatment component 22. The heating treatment component 21 and the humidification treatment component 22 are located at the top of the automatic feeding platform 1 and are arranged adjacent to each other.
[0024] Before guiding and conveying the cardboard, the humidity of the cardboard is detected by a handheld infrared humidity meter to determine its moisture content. The cardboard is then placed on the automatic feeding conveyor belt 10, which moves the cardboard forward. When the cardboard's humidity is low, the heating treatment unit 21 can be activated to heat and dry the cardboard. When the cardboard is too dry, the humidification treatment unit 22 can be activated to humidify the cardboard, ensuring that the cardboard is in an ideal state with uniform humidity and stable physical properties during forward conveying. ① Precise humidity control: Stabilizing the moisture content at 8%-12% avoids high-humidity softening and tearing or low-humidity brittle breakage, increasing tensile strength by 30%-50% and optimizing stiffness by 20%-40%; ② Stable shape: Eliminating the humidity difference (≤0.5%) between the upper and lower surfaces and internal stress, reducing the curl from 20mm / m to 3mm / m. The following features are provided: ① Guide offset < 0.5mm, reducing the risk of material jamming; ② Equipment compatibility: Surface friction coefficient is stable at 0.4-0.6, electrostatic voltage < 1kV, reducing slippage, adhesion and sensor mis-touch; ③ Quality and efficiency improvement: The scrap rate of subsequent printing, bonding and other processes is reduced from 15% to below 2%, equipment maintenance costs are reduced by 40%, and production efficiency is increased by 15%-25%. Then, the paperboard guide component 3 guides the paperboard feeding, so that the paperboard is accurately conveyed forward to facilitate the subsequent paperboard forming work.
[0025] In this embodiment, refer to Figure 3 As shown, the heating treatment component 21 includes a mounting base 211, two heating rollers 212, two drive motors 213, and two sliders 214. The mounting base 211 is located on the top of the automatic feeding table 1. The mounting base 211 is provided with two sliding grooves 215. The two sliders 214 are slidably connected in the two sliding grooves 215 respectively. Each sliding groove 215 is provided with two symmetrically arranged drive cylinders 216. The telescopic ends of the two drive cylinders 216 are connected to the sliders 214. The two ends of the two heating rollers 212 are rotatably connected to the two sliders 214. The two drive motors 213 are provided on one of the sliders 214 and are drively connected to the heating rollers 212. The heating rollers 212 are provided with built-in tubular electric heating elements.
[0026] When the system determines that the cardboard needs to be heated, the built-in tubular heating element rapidly heats up, causing the heating tube to heat evenly to the set temperature. Subsequently, the drive cylinders 216 on the two sliders 214 are activated synchronously, and through precision servo control, the sliders 214 move smoothly down along the side grooves 215. As the heating roller 212 precisely lands above the cardboard, it performs a dual function: on the one hand, through continuous heat conduction, it adjusts the moisture content of the cardboard to the ideal range required for guiding and conveying, ensuring the stability of the cardboard's physical properties; on the other hand, using the weight and constant pressure of the heating roller 212 itself, it flattens and smooths the surface of the cardboard, eliminating wrinkles and warping, laying the foundation for subsequent high-precision guiding and conveying.
[0027] In this embodiment, refer to Figure 4 As shown, the humidification treatment component 22 includes a support frame 221, a swing motor 222, a swing frame 223, a connecting pipe 224, and a plurality of spray nozzles 225. The support frame 221 is located on the top of the automatic feeding table 1. The two ends of the swing frame 223 are rotatably connected to the support frame 221. The swing motor 222 is located on the support frame 221 and is connected to the swing frame 223. The plurality of spray nozzles 225 are equally spaced on the swing frame 223. The connecting pipe 224 is connected to the plurality of spray nozzles 225.
[0028] When the system detects that the cardboard moisture content is below the standard value, the water supply system immediately starts, stably delivering atomized water to the array of spray nozzles 225 via connecting pipe 224. Driven precisely by the oscillating motor 222, the oscillating frame 223 oscillates back and forth on the support frame 221 at a constant frequency, causing all spray nozzles 225 to oscillate synchronously. At this time, micron-sized droplets fall evenly in a fan shape, covering the cardboard surface like a fine rain curtain, ensuring that every fiber can fully absorb moisture. This dynamic spraying process not only achieves rapid adjustment of the cardboard moisture content but also, through the coordinated operation of the oscillating motor 222, effectively avoids problems of localized over-humidification or uneven humidification, ensuring that the cardboard moisture content is uniformly increased to the required range for the process, laying the foundation for subsequent stable conveying and forming.
[0029] In this embodiment, refer to Figure 5 As shown, the cardboard guiding assembly 3 includes two symmetrically arranged guide members 30. Each guide member 30 includes a placement seat 31, a guide plate 32, an adjusting screw 33, and two limiting rods 34. The placement seat 31 is located on the top of the automatic feeding table 1. The adjusting screw 33 is threadedly connected to the placement seat 31. The two limiting rods 34 are symmetrically arranged on the guide plate 32 and are slidably engaged with the placement seat 31. One end of the adjusting screw 33 is rotatably connected to the guide plate 32, and the other end of the adjusting screw 33 is provided with a turntable 36.
[0030] When adjusting the position of the two guide plates 32, ensuring they fit against both sides of the cardboard, the turntable 36 can be rotated to drive the adjusting screw 33 to rotate on the placement seat 31. This allows the guide plates 32 to move on the placement seat 31 via the two limiting rods 34, moving them towards the side wall of the cardboard. Firstly, high-precision positioning ensures the distance between the guide plate 32 and the edge of the cardboard is controlled within ±0.5mm, effectively preventing offset due to excessive gaps or jamming due to insufficient gaps. Secondly, adaptive adjustment allows for quick adaptation to different cardboard specifications, reducing adjustment time to minutes during production changes and improving production line flexibility. Thirdly, stable conveying, with the double-sided guide plates 32 forming a rigid constraint, controls cardboard offset within 1mm even at high speeds, providing a stable foundation for subsequent forming processes and reducing scrap rate by more than 50%.
[0031] In this embodiment, an arc-shaped plate 35 is provided at the paper feed end of the guide plate 32; the arc-shaped plate 35 ensures that the paperboard is conveyed on the automatic feeding conveyor belt 10 and can be accurately guided to the middle of the two guide plates 32.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A feed guide structure for a paperboard forming apparatus, characterized by: The application relates to an automatic feeding table (1) which is provided with a horizontal automatic feeding conveyor belt (10), a top of the automatic feeding table (1) is provided with a guide pretreatment assembly (2) and a paperboard guide assembly (3), the paperboard guide assembly (3) is located at a discharging end of the automatic feeding table (1), the guide pretreatment assembly (2) comprises a heating treatment component (21) and a humidification treatment component (22), the heating treatment component (21) and the humidification treatment component (22) are located at a top of the automatic feeding table (1), and the heating treatment component (21) and the humidification treatment component (22) are adjacently arranged.
2. A feed guide structure for a paperboard forming apparatus according to claim 1, characterized in that: The heating treatment component (21) comprises a mounting seat (211), two heating rollers (212), two driving motors (213) and two sliding blocks (214), the mounting seat (211) is located at the top of the automatic feeding table (1), two sliding grooves (215) are arranged on the mounting seat (211), the two sliding blocks (214) are slidably connected in the two sliding grooves (215) respectively, two driving cylinders (216) are symmetrically arranged at each sliding groove (215), the telescopic ends of the two driving cylinders (216) are connected with the sliding blocks (214), the two ends of the two heating rollers (212) are rotatably connected with the two sliding blocks (214), and the two driving motors (213) are arranged on one of the sliding blocks (214) and are in transmission connection with the heating rollers (212).
3. A feed guide structure for a paperboard forming apparatus according to claim 2, characterized in that: The heating roller (212) is internally provided with an embedded tubular electric heating element.
4. A feed guide structure for a paperboard forming apparatus as defined in claim 1, wherein: The humidification treatment component (22) comprises a supporting frame (221), an oscillating motor (222), an oscillating frame (223), a connecting pipe (224) and a plurality of spray nozzles (225), the supporting frame (221) is located at the top of the automatic feeding table (1), the two ends of the oscillating frame (223) are rotatably connected with the supporting frame (221), the oscillating motor (222) is located on the supporting frame (221) and is in transmission connection with the oscillating frame (223), the plurality of spray nozzles (225) are equidistantly arranged on the oscillating frame (223), and the connecting pipe (224) is connected with the plurality of spray nozzles (225).
5. A feed guide structure for a paperboard forming apparatus as defined in claim 1, wherein: The paperboard guide assembly (3) comprises two symmetrically-arranged guide members (30), each guide member (30) comprises a placing seat (31), a guide plate (32), an adjusting lead screw (33) and two limiting rods (34), the placing seat (31) is located at the top of the automatic feeding table (1), the adjusting lead screw (33) is threadedly connected with the placing seat (31), the two limiting rods (34) are symmetrically arranged on the guide plate (32) and are in sliding fit between the two limiting rods (34) and the placing seat (31), one end of the adjusting lead screw (33) is rotatably connected with the guide plate (32), and a rotary disc (36) is arranged on the other end of the adjusting lead screw (33).
6. A feed guide structure for a paperboard forming apparatus according to claim 5, characterized in that: An arc-shaped plate (35) is arranged at a paper feeding end of the guide plate (32).