Feeding detection device for overwrap paperboard

Abstract

The utility model relates to a kind of feeding detection devices for outer packing paperboard, including chassis, feeding support, feeding mechanism, detection mechanism and discharging plate, overdrive motor drives driving cam to rotate, driving cam is cooperated with the moving block with driving roller, and linkage is formed using compression spring, driving slider and driving rod, the rotation of driving cam is converted into the accurate linear reciprocating motion of moving block, multiple pusher rods fixed on moving block move, in turn pass through the sliding passage of feeding support, the paperboard stacked in the bottom is pushed to feeding passage one by one, stably, and finally is conveyed to detection mechanism and is identified, the utility model realizes the automation of paperboard single feeding, compact structure, action reliable, effectively improve the stability and detection efficiency of feeding link, structure is ingenious, efficient and convenient.

Description

Technical Field

[0001] This utility model relates to the field of material feeding and detection for outer packaging cardboard, and in particular to a material feeding and detection device for outer packaging cardboard. Background Technology

[0002] In the field of outer packaging production, cardboard is a widely used basic material. Before leaving the factory, quality inspection of the markings printed on the cardboard (such as brand logos, QR codes, production dates, etc.) is a key step in ensuring product quality. With the development of the industry, automated visual inspection equipment has gradually replaced inefficient manual inspection, which is prone to fatigue errors. The first step in automated inspection is to achieve automatic and reliable feeding of cardboard. Currently, common automatic feeding methods mostly use conveyor belts or simple pusher structures. However, for stacked cardboard, these methods have obvious drawbacks: simple pushing can easily lead to the ejection of multiple cardboard sheets at once (i.e., "double-sheet" or "multiple-sheet" phenomena), seriously interfering with subsequent inspection processes; in addition, if the pushing action is not smooth, it may cause the cardboard to jam, tilt, or suffer edge damage during the pushing process.

[0003] Existing separation mechanisms are complex in structure, inconvenient to adjust, or expensive to manufacture. Therefore, there is a need to develop a relatively simple, reliable feeding mechanism that can stably push only a single sheet of cardboard each time, in order to meet the urgent needs of efficient, high-precision automated inspection production lines. Summary of the Invention

[0004] The purpose of this invention is to provide a feeding and detection device for outer packaging cardboard. It has an ingenious structure and can achieve fast and efficient feeding of cardboard, which is both efficient and convenient.

[0005] The technical solution to achieve the purpose of this utility model is as follows: This utility model has a base frame, on which a feeding bracket for stacking cardboard is provided; the bottom of the feeding bracket is provided with a feeding mechanism for feeding cardboard one by one; the base frame is also provided with a detection mechanism for detecting markings on the cardboard; the base frame is also provided with a feeding plate for unloading the detection mechanism; the feeding mechanism includes a feeding base plate fixed on the base frame, a drive motor fixed on the feeding base plate, a drive cam rotatably mounted on the feeding base plate under the drive of the drive motor, a moving block slidably mounted on the feeding base plate, a drive roller mounted on one side of the moving block and capable of cooperating with the drive cam, multiple push rods mounted above the moving block and capable of feeding cardboard into the feeding bracket, a positioning rod fixed on the feeding base plate and perpendicular to the moving direction of the moving block, two drive sliders slidably mounted on the positioning rods along the extension direction of the positioning rods, and drive rods corresponding to each drive slider; the drive cam presses against the drive rollers; the feeding base plate... The support has a positioning block arranged opposite to each other. Each driving slider and its corresponding positioning block is provided with a compression spring. Each compression spring is sleeved on a positioning rod. The two ends of the compression spring act on the driving slider and the positioning block respectively. One end of each driving rod is rotatably connected to the corresponding driving slider, and the other end of each driving rod is rotatably connected to the end face of the moving block away from the driving roller. The feeding bracket has a feeding channel for feeding cardboard stacked at the bottom. The feeding bracket also has a sliding channel for each push rod to pass through. The feeding channel and the sliding channel extend in the same direction and are connected. The driving cam has a driving arc surface and a reset arc surface. Each push rod is pushed backward by the driving motor driving the driving cam and the driving roller pressing against the reset arc surface. After being pushed backward, each push rod is reset by the driving roller pressing against the driving arc surface, the continuous force of each compression spring on the driving slider, and the sliding cooperation between each driving slider and the positioning rod, and pushes the cardboard to the detection mechanism.

[0006] Furthermore, the aforementioned feeding base plate is provided with two parallel bottom sliding grooves, the extension direction of each bottom sliding groove is perpendicular to the extension direction of the positioning rod, and the moving block is provided with bottom sliders adapted to each bottom sliding groove. The moving block is slidably connected to the feeding base plate through the cooperation of each bottom slider and bottom sliding groove.

[0007] Furthermore, the aforementioned testing mechanism includes a testing bracket fixed on the base frame, a lifting cylinder fixed on the testing bracket, a testing camera fixed on the telescopic end of the lifting cylinder, a testing light source fixed below the testing camera, and a conveyor belt positioned below the testing light source. The conveyor belt, driven by a motor, transfers the cardboard from the feeding mechanism to below the testing light source. The testing camera and testing light source, driven by the lifting cylinder, are moved to above the cardboard and inspect the markings on the cardboard on the conveyor belt.

[0008] Furthermore, a guiding mechanism for guiding the cardboard is provided between the aforementioned feeding mechanism and the detection mechanism. The guiding mechanism includes a guide bracket fixed on the base frame, a lower base fixed inside the guide bracket, a guide motor fixed on the lower base, a lower roller rotatably mounted on the lower base under the drive of the guide motor, an upper base slidably mounted on the guide bracket, an upper roller rotatably mounted on the upper base, multiple guide rods mounted on the upper base and slidably connected to the lifting bracket, and second compression springs sleeved on each guide rod. The feeding bracket has guide holes corresponding to each guide rod, and each guide rod is slidably mounted in the corresponding guide hole. The two ends of the second compression springs act on the upper base and the guide bracket, respectively. The axes of the upper roller and the lower roller are parallel to the extension direction of the positioning rod. The upper roller is pressed against the lower roller by the continuous force of each second compression spring, and the cardboard on the feeding bracket is guided to the detection mechanism.

[0009] Furthermore, the guide bracket is provided with a side sliding groove on its side, and each upper base is provided with a side slider corresponding to each side sliding groove. The upper base is slidably mounted on the guide bracket by sliding cooperation between each side slider and the side sliding groove.

[0010] Furthermore, an adjusting screw hole is provided between each guide hole, and an adjusting screw is provided in the adjusting screw hole. The lower end of the adjusting screw is rotatably connected to the upper base, and the upper end of the adjusting screw extends out of the guide bracket. The adjusting screw adjusts the initial position of the upper base through the threaded engagement with the adjusting screw hole and the rotatable connection with the upper base.

[0011] This utility model has positive effects: (1) By setting up a feeding mechanism, this utility model can smoothly and accurately push out the bottom sheet of the stacked cardboard through the precise cooperation of the driving cam, moving block, push rod and the linkage system composed of compression spring, driving slider and driving rod, effectively avoiding the common problem of feeding "double sheets" or "multiple sheets" at the same time, laying a solid foundation for the accuracy of subsequent testing. The entire feeding mechanism is integrated on the feeding base plate, and the driving cam is used to convert the rotational motion into precise linear reciprocating motion. The structure is ingeniously designed, with high space utilization and reliable operation. The compression spring always applies pressure to the driving slider, and then the force is transmitted to the moving block and push rod through the driving rod. This design ensures that the pusher has a continuous and flexible pushing force when pushing the cardboard, resulting in smoother operation and reducing the risk of jamming or impact damage to the cardboard. The specific drive and reset arc surfaces on the drive cam, in conjunction with the compression spring, precisely control the pusher's push-to-reset and then push-back cycle, ensuring a stable rhythm that matches well with the overall detection cycle. This effectively solves the problem of complex pusher mechanisms in existing technologies, which are prone to pushing out multiple sheets, greatly improving the quality and efficiency of cardboard feeding. The design is ingenious, stable, and practical.

[0012] (2) The present invention provides precise guidance for the reciprocating linear motion of the moving block by the cooperation of the bottom slider and the bottom groove, preventing it from deviating or getting stuck during the movement, and ensuring that the push rod can be accurately aligned with the sliding channel, thereby making the feeding action more reliable and durable.

[0013] (3) This utility model achieves a fully automated process from feeding and conveying to detection by seamlessly connecting the feeding mechanism and the detection mechanism through the conveyor belt, which greatly improves the detection efficiency. The lifting cylinder can flexibly adjust the height of the detection camera and the light source to adapt to different thicknesses of cardboard or different detection requirements. The detection light source can provide stable and uniform illumination to ensure that the camera captures clear images, thereby improving the accuracy and reliability of the marking detection.

[0014] (4) The upper roller in the guide mechanism can adaptively press against the lower roller under the action of the second compression spring to form an elastically adjustable clamping channel. It can not only effectively guide paperboards of different thicknesses, but also provide a certain buffering effect to prevent the paperboard from being stuck or damaged at the edges during the conveying process. As a bridge between the feeding mechanism and the detection mechanism, the guide mechanism can ensure that the paperboard is smoothly and smoothly transferred from the feeding point to the detection conveyor belt, avoiding the paperboard from falling or tilting at the joint.

[0015] (5) By using the combination of the side slider and the side groove, this utility model ensures that the upper base can only move vertically, preventing it from shifting or twisting in the horizontal direction, so that the upper roller can always be parallel to the lower roller, applying uniform pressure to the cardboard, and making the guiding process more stable and reliable.

[0016] (6) By rotating the adjusting screw, the initial height of the upper base can be precisely adjusted, thereby changing the initial pressure or gap between the upper and lower rollers. This allows the guiding mechanism to easily adapt to cardboard of different thicknesses or materials, enhancing the versatility and process adaptability of the entire device, and making operation simple and convenient. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein... Figure 1 This is a schematic diagram of the overall structure of the feeding and detection device for outer packaging cardboard in this utility model; Figure 2 This is a schematic diagram of the overall structure of the feeding mechanism in this utility model; Figure 3 This is a schematic diagram of the overall structure of the movable block in this utility model; Figure 4This is a schematic diagram of the overall structure of the feeding bracket in this utility model; Figure 5 This is a cross-sectional view of the overall structure of the guide mechanism in this utility model; Figure 6 This is a schematic diagram of the overall structure of the detection mechanism in this utility model; The attached figures are labeled as follows: 1. Base frame; 2. Feeding mechanism; 20. Feeding base plate; 201. Bottom slide groove; 21. Drive motor; 211. Drive arc surface; 212. Reset arc surface; 22. Drive cam; 23. Moving block; 231. Bottom slider; 24. Drive roller; 25. Push rod; 26. Drive rod; 27. Positioning block; 28. Positioning rod; 29. ​​Drive slider; 210. Compression spring; 3. Feeding bracket; 31. Feeding channel; 32. Sliding channel; 4. Guide mechanism; 41. Guide bracket; 411. Side slide groove; 42. Lower base; 43. Lower roller; 44. Upper base; 44. Side slider; 45. Upper roller; 46. Guide rod; 47. Guide hole; 48. Second compression spring; 49. Adjusting screw; 410. Adjusting screw hole; 5. Detection mechanism; 51. Detection bracket; 52. Lifting cylinder; 53. Detection camera; 54. Detection light source; 55. Conveyor belt; 6. Unloading plate. Detailed Implementation

[0018] See Figures 1 to 6This utility model includes a base frame 1, on which a feeding bracket 3 for stacking cardboard is provided; the bottom of the feeding bracket 3 is provided with a feeding mechanism 2 for feeding cardboard one by one; the base frame 1 is also provided with a detection mechanism 5 for detecting markings on the cardboard; the base frame 1 is also provided with a feeding plate 6 for unloading the detection mechanism 5; the feeding mechanism 2 includes a feeding base plate 20 fixed on the base frame 1, a drive motor 21 fixed on the feeding base plate 20, a drive cam 22 rotatably disposed on the feeding base plate 20 under the drive of the drive motor 21, and a slidably disposed on the feeding base plate 20. The system includes a moving block 23, a drive roller 24 located on one side of the moving block 23 and capable of cooperating with the drive cam 22, multiple push rods 25 located above the moving block 23 for feeding cardboard into the feeding bracket 3, a positioning rod 28 fixed on the feeding base plate 20 and perpendicular to the moving direction of the moving block 23, two drive sliders 29 slidably mounted on the positioning rods 28 along their extension direction, and drive rods 26 corresponding to each drive slider 29. The drive cam 22 presses against the drive roller 24. The feeding base plate 20 is provided with opposing positioning blocks 27. A compression spring 210 is provided between the slider 29 and the corresponding positioning block 27. Each compression spring 210 is sleeved on the positioning rod 28, and the two ends of the compression spring 210 act on the driving slider 29 and the positioning block 27 respectively. One end of each driving rod 26 is rotatably connected to the corresponding driving slider 29, and the other end of each driving rod 26 is rotatably connected to the end face of the moving block 23 away from the driving roller 24. The feeding bracket 3 is provided with a feeding channel 31 for feeding cardboard stacked at the bottom. The feeding bracket 3 is also provided with a sliding channel 32 for each push rod 25 to pass through. The feeding channel 31 and the sliding channel 32 are connected to the sliding block 28. The sliding channels 32 extend in the same direction, and the feeding channel 31 is connected to the sliding channel 32. The driving cam 22 is provided with a driving arc surface 211 and a reset arc surface 212. Each push rod 25 is pushed backward by the driving motor 21 driving the driving cam 22 and the driving roller 24 pressing against the reset arc surface 212. After being pushed backward, each push rod 25 is reset by the driving roller 24 pressing against the driving arc surface 211, each compression spring 210 continuously applying force to the driving slider 29, and each driving slider 29 sliding with the positioning rod 28, and pushes the cardboard to the detection mechanism 5.

[0019] The loading base plate 20 is provided with two parallel bottom slide grooves 201. The extension direction of each bottom slide groove 201 is perpendicular to the extension direction of the positioning rod 28. The moving block 23 is provided with bottom sliders 231 that are adapted to each bottom slide groove 201. The moving block 23 is slidably connected to the loading base plate 20 through the cooperation of each bottom slider 231 and the bottom slide groove 201.

[0020] The detection mechanism 5 includes a detection bracket 51 fixed on the base frame 1, a lifting cylinder 52 fixed on the detection bracket 51, a detection camera 53 fixed on the telescopic end of the lifting cylinder 52, a detection light source 54 fixed below the detection camera 53, and a conveyor belt 55 set below the detection light source 54. The conveyor belt 55 is driven by a motor to transfer the cardboard on the feeding mechanism 2 to below the detection light source 54. The detection camera 53 and the detection light source 54 are driven by the lifting cylinder 52 to move above the cardboard and detect the markings on the cardboard on the conveyor belt 55.

[0021] A guide mechanism 4 for guiding the paperboard feeding is provided between the feeding mechanism 2 and the detection mechanism 5. The guide mechanism 4 includes a guide bracket 41 fixed on the base frame 1, a lower base 42 fixed inside the guide bracket 41, a guide motor fixed on the lower base 42, a lower roller 43 rotatably mounted on the lower base 42 under the drive of the guide motor, an upper base 44 slidably mounted on the guide bracket 41, an upper roller 45 rotatably mounted on the upper base 44, and multiple guide rollers mounted on the upper base 44 and slidably connected to the lifting bracket. The feeding bracket 3 has guide rods 46 and second compression springs 48 sleeved on each guide rod 46. The feeding bracket 3 is provided with guide holes 47 corresponding to each guide rod 46. Each guide rod 46 is slidably disposed in the corresponding guide hole 47. The two ends of the second compression springs 48 act on the upper base 44 and the guide bracket 41 respectively. The axes of the upper roller and the lower roller 43 are arranged parallel to the extension direction of the positioning rod 28. The upper roller 45 is pressed against the lower roller 43 by the continuous force of each second compression spring 48, and guides the cardboard on the feeding bracket 3 to the detection mechanism 5.

[0022] The guide bracket 41 has a side slide groove 411 on its side, and each upper base 44 has a side slider 441 corresponding to each side slide groove 411. The upper base 44 is slidably mounted on the guide bracket 41 through the sliding cooperation of each side slider 441 and the side slide groove 411.

[0023] An adjusting screw hole 410 is provided between each guide hole 47. An adjusting screw 49 is provided in the adjusting screw hole 410. The lower end of the adjusting screw 49 is rotatably connected to the upper base 44, and the upper end of the adjusting screw 49 extends out of the guide bracket 41. The adjusting screw 49 adjusts the initial position of the upper base 44 through the threaded engagement with the adjusting screw hole 410 and the rotatable connection with the upper base 44.

[0024] The working principle of this utility model is as follows: During use, the operator first stacks the cardboard pieces to be tested on the feeding bracket 3. In the initial state, the drive motor 21 presses the reset arc surface 212 on the drive cam 22 against the drive roller. The drive roller moves backward under pressure, causing the moving block 23 to move backward as well. During this backward movement, the moving block 23 moves stably and directionally through the cooperation of the bottom slider 231 and the bottom slide rail. As the moving block 23 moves, it drives the drive rods 26 to move the drive sliders 29 on the positioning rods 28. The push rods 25 disengage from the sliding channel 32, and the drive motor 21 stops. Simultaneously, the adjusting screw 49 is adjusted according to the thickness of the cardboard. During adjustment, the adjusting screw 49, through its threaded engagement with the adjusting screw hole 410, drives the upper base 44 to adjust its height. After adjustment, the guide motor starts driving, and the drive motor... 21 is driven again. The drive motor 21 drives the drive arc surface 211 to press against the drive roller 24. Then, the moving block 23 pushes the material under the continuous force of the compression spring 210. During the movement of the moving block 23, each push rod 25 on the moving block 23 enters the sliding channel 32 and pushes the cardboard at the bottom of the feeding channel 31. During the pushing process, the cardboard enters between the upper roller 45 and the lower roller 43. The lower roller 43 drives the cardboard into the detection mechanism 5. The conveyor belt 55 transports the cardboard to the bottom of the detection light source 54. The detection camera 53 is focused and adjusted by the drive of the lifting cylinder 52. It detects the markings on the cardboard on the conveyor belt 55 in cooperation with the detection light source 54. After the detection is completed, the cardboard is unloaded through the unloading plate 6. This effectively solves the problem of complex structure and easy pushing of multiple sheets in the existing push mechanism. It greatly improves the quality and efficiency of cardboard feeding. The structure is ingenious, efficient and convenient.

[0025] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A feeding and detection device for outer packaging cardboard, comprising a base frame, wherein the base frame is provided with a feeding support for stacking cardboard; characterized in that: The bottom of the feeding bracket is equipped with a feeding mechanism for feeding cardboard one by one. The base frame also has a detection mechanism for detecting markings on the cardboard, and a feeding plate for unloading the detection mechanism. The feeding mechanism includes a feeding base plate fixed to the base frame, a drive motor fixed to the feeding base plate, a drive cam rotatably mounted on the feeding base plate under the drive of the drive motor, a moving block slidably mounted on the feeding base plate, a drive roller mounted on one side of the moving block and cooperating with the drive cam, multiple push rods mounted above the moving block for feeding cardboard into the feeding bracket, a positioning rod fixed to the feeding base plate and perpendicular to the moving direction of the moving block, two drive sliders slidably mounted on the positioning rods along their extension direction, and drive rods corresponding to each drive slider. The drive cam presses against the drive rollers. The feeding base plate has opposing positioning blocks, and each drive slider and its corresponding... Compression springs are provided between the positioning blocks, and each compression spring is sleeved on the positioning rod. The two ends of the compression springs act on the driving slider and the positioning block respectively. One end of each driving rod is rotatably connected to the corresponding driving slider, and the other end of each driving rod is rotatably connected to the end face of the moving block away from the driving roller. The feeding bracket is provided with a feeding channel for feeding cardboard stacked at the bottom. The feeding bracket is also provided with a sliding channel for each push rod to pass through. The feeding channel and the sliding channel extend in the same direction and are connected. The driving cam is provided with a driving arc surface and a reset arc surface. Each push rod is pushed backward by the driving motor driving the driving cam and the driving roller pressing against the reset arc surface. After being pushed backward, each push rod is reset by the driving roller pressing against the driving arc surface, the continuous force of each compression spring on the driving slider, and the sliding cooperation between each driving slider and the positioning rod, and pushes the cardboard to the detection mechanism.

2. The feeding and detection device for outer packaging cardboard according to claim 1, characterized in that: The feeding base plate is provided with two parallel bottom sliding grooves, and the extension direction of each bottom sliding groove is perpendicular to the extension direction of the positioning rod. The moving block is provided with bottom sliders that are adapted to each bottom sliding groove. The moving block is slidably connected to the feeding base plate through the cooperation of each bottom slider and bottom sliding groove.

3. The feeding and detection device for outer packaging cardboard according to claim 2, characterized in that: The detection mechanism includes a detection bracket fixed on the base frame, a lifting cylinder fixed on the detection bracket, a detection camera fixed on the telescopic end of the lifting cylinder, a detection light source fixed below the detection camera, and a conveyor belt set below the detection light source. The conveyor belt, driven by a motor, transfers the cardboard on the feeding mechanism to below the detection light source. The detection camera and detection light source, driven by the lifting cylinder, are moved to above the cardboard and detect the markings on the cardboard on the conveyor belt.

4. The feeding and detection device for outer packaging cardboard according to claim 3, characterized in that: A guiding mechanism for feeding and guiding cardboard is provided between the feeding mechanism and the detection mechanism. The guiding mechanism includes a guide bracket fixed on the base frame, a lower base fixed inside the guide bracket, a guide motor fixed on the lower base, a lower roller rotatably mounted on the lower base under the drive of the guide motor, an upper base slidably mounted on the guide bracket, an upper roller rotatably mounted on the upper base, multiple guide rods mounted on the upper base and slidably connected to the lifting bracket, and second compression springs sleeved on each guide rod. The feeding bracket has guide holes corresponding to each guide rod, and each guide rod is slidably mounted in the corresponding guide hole. The two ends of the second compression springs act on the upper base and the guide bracket, respectively. The axes of the upper roller and the lower roller are parallel to the extension direction of the positioning rod. The upper roller is pressed against the lower roller by the continuous force of each second compression spring, and the cardboard on the feeding bracket is guided to the detection mechanism.

5. The feeding and detection device for outer packaging cardboard according to claim 4, characterized in that: The guide bracket has a side sliding groove on its side, and each upper base has a side slider corresponding to each side sliding groove. The upper base is slidably mounted on the guide bracket by sliding cooperation between each side slider and the side sliding groove.

6. The feeding and detection device for outer packaging cardboard according to claim 5, characterized in that: An adjusting screw hole is provided between each guide hole, and an adjusting screw is provided in the adjusting screw hole. The lower end of the adjusting screw is rotatably connected to the upper base, and the upper end of the adjusting screw extends out of the guide bracket. The adjusting screw adjusts the initial position of the upper base through the threaded engagement with the adjusting screw hole and the rotatable connection with the upper base.

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