Detection device for white cardboard packaging

Abstract

The utility model relates to the technical field of packaging equipment, in particular to a detection device for white cardboard packaging, which comprises a supporting flat plate, and a paper placing mechanism, an automatic detection mechanism and a guide mechanism are sequentially arranged on the upper side of the supporting flat plate. The automatic detection mechanism comprises a second support, the second support is fixedly installed on the upper side of the supporting flat plate, a servo motor is fixedly installed on the outer wall of the second support, the output end of the servo motor rotationally penetrates to the inner side of the second support, a threaded rod is fixedly installed at the output end of the servo motor, and a sliding block is installed on the threaded rod in a threaded connection mode; a dovetail groove is formed in the bottom of the upper side of the second support, a dovetail block is slidably clamped to the inner side of the dovetail groove, and a mounting disc is fixedly mounted at the bottom of the dovetail block. The ultrasonic ranging principle is adopted, the ultrasonic transmitting and receiving probes are symmetrically installed on the upper side and the lower side of the white cardboard transmission path, the thickness of the white cardboard is accurately calculated by measuring the round-trip time of ultrasonic waves, and the thickness change can be monitored in real time.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a testing device for white cardboard packaging. Background Technology

[0002] White cardboard, as an important packaging material, is widely used in food, pharmaceuticals, cosmetics, electronic products, and many other fields. Its thickness uniformity, flatness, and other quality indicators directly affect the appearance, strength, and printability of the packaged products, thus impacting their market competitiveness and consumer experience. Therefore, high-precision, real-time quality inspection of white cardboard packaging is crucial.

[0003] Currently, methods for measuring the thickness of white cardboard mainly fall into two categories: contact testing and non-contact testing. Contact testing, using tools such as micrometers, can achieve a certain level of accuracy, but it is cumbersome to operate, has low efficiency, and cannot meet the needs of real-time online testing in industrial production. Furthermore, the measurement process may damage the surface of the white cardboard, affecting product quality. Among non-contact testing methods, traditional optical methods are easily affected by factors such as the gloss and color of the white cardboard surface, leading to inaccurate results. While X-ray testing offers high accuracy, it poses radiation safety hazards and the equipment is expensive.

[0004] To address the shortcomings of the aforementioned technologies, we propose a testing device for white cardboard packaging. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a detection device for white cardboard packaging.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A detection device for white cardboard packaging includes a support plate. A paper feeding mechanism, an automatic detection mechanism, and a guiding mechanism are sequentially arranged on the upper side of the support plate. The automatic detection mechanism includes a second support fixedly mounted on the upper side of the support plate. A servo motor is fixedly mounted on the outer wall of the second support. The output end of the servo motor rotates through to the inner side of the second support, and a threaded rod is fixedly mounted on the output end of the servo motor. A slider is screwed onto the threaded rod. A dovetail groove is formed at the bottom of the upper side of the second support. A dovetail block is slidably engaged inside the dovetail groove. An installation plate is fixedly mounted at the bottom of the dovetail block. A lower permanent magnet and several ultrasonic transmitters are fixedly mounted on the upper side of the slider. An upper permanent magnet and several receiving probes are fixedly mounted on the lower side of the installation plate.

[0008] Furthermore, the installation positions of the plurality of ultrasonic transmitters and the plurality of receiving probes correspond one-to-one. Two slide rods are symmetrically fixedly installed on the inner side of the second support, and the slide rods slide through the slider. Four guide rollers are symmetrically rotated and installed on the inner side of the second support.

[0009] By adopting the above technical solution, based on the principle of ultrasonic ranging, ultrasonic transmitting and receiving probes are symmetrically installed on both sides of the white cardboard transmission path. By measuring the round-trip time of the ultrasonic waves, the thickness of the white cardboard can be accurately calculated.

[0010] Furthermore, a bent rod is fixedly installed on the upper side of the second support, and an infrared sensor is fixedly installed at the lower end of the bent rod.

[0011] Furthermore, the paper feeding mechanism includes a first support, which is fixedly installed on the upper side of the support plate, and a controller and an indicator light are fixedly installed on the outer wall of the first support.

[0012] By adopting the above technical solution, the indicator light is used to indicate that the paper material is used up, prompting the staff to import the next white cardboard from the white cardboard roll.

[0013] Furthermore, two fixed shafts are fixedly installed on the inner wall of the first support, and white cardboard material rollers are sleeved on the outer side of the fixed shafts.

[0014] Furthermore, a threaded end cap is screwed onto the end of the fixed shaft.

[0015] By adopting the above technical solution, the screw-on side cover provides a lateral limiting effect on the white cardboard roll.

[0016] Furthermore, the guiding mechanism includes a third support, which is fixedly installed on the upper side of the support plate. An active roller is rotatably installed on the inner side of the third support, and a drive motor is fixedly installed on the side of the third support. The output end of the drive motor is connected to the active roller shaft coupling.

[0017] Furthermore, an upper pressure roller is provided on the upper side of the drive roller, and sleeves are rotatably installed at both ends of the upper pressure roller, with threaded adjusting rods rotatably installed on the upper side of the sleeves.

[0018] By adopting the above technical solution, the distance between the upper pressure roller and the drive roller can be adjusted by rotating the adjusting screw, which is suitable for conveying and guiding white cardboard of different thicknesses.

[0019] Furthermore, a threaded adjustment rod is provided with a threaded seat on its upper side, the threaded adjustment rod is threaded through to the upper side of the threaded seat, and the threaded seat is threadedly installed on the inner wall of the third support.

[0020] Furthermore, a hexagonal torsion seat is fixedly installed on the upper end of the threaded adjusting rod.

[0021] By adopting the above technical solution, the hexagonal torsion seat is designed to facilitate manual adjustment to drive the threaded adjustment rod to rotate.

[0022] Compared with related technologies, the detection device for white cardboard packaging proposed in this utility model has the following advantages:

[0023] In this invention, a detection device for white cardboard packaging is described. Through an automatic detection mechanism based on ultrasonic ranging, ultrasonic transmitting and receiving probes are symmetrically installed on both sides of the white cardboard transport path. By measuring the round-trip time of the ultrasonic waves, the thickness of the white cardboard is accurately calculated, and thickness changes can be monitored in real time. The detection data is recorded on the controller for subsequent data processing. Furthermore, a servo motor drives a threaded rod to move the lower permanent magnet and ultrasonic transmitter on the slider inside the second support, perpendicular to the white cardboard transport direction. Under magnetic attraction, the upper permanent magnet drives the dovetail block to move synchronously with the lower slider, thus causing the upper receiving probe to move synchronously with the ultrasonic transmitter, facilitating detection. The ultrasonic thickness measurement action is perpendicular to the white cardboard transport direction. Due to the transport of the white cardboard and the reciprocating sliding action of the slider, the thickness detection points are widely distributed, avoiding incomplete coverage of the detection area and enhancing practicality. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a detection device for white cardboard packaging proposed in this utility model;

[0025] Figure 2 This is a three-dimensional disassembly diagram of the paper feeding mechanism;

[0026] Figure 3 A three-dimensional structural diagram of the guiding mechanism;

[0027] Figure 4 This is a three-dimensional structural diagram of the upper pressure roller;

[0028] Figure 5 This is a three-dimensional structural diagram of the automatic detection mechanism;

[0029] Figure 6 A partial three-dimensional structural diagram of the automatic detection mechanism. Figure 1 ;

[0030] Figure 7 A partial three-dimensional structural diagram of the automatic detection mechanism. Figure 2 .

[0031] In the diagram: 1. Support plate; 2. Paper feeding mechanism; 21. First support; 22. Controller; 23. Indicator light; 24. Fixed shaft; 25. Screw-connected side cover; 26. White cardboard material roller; 3. Automatic detection mechanism; 31. Second support; 32. Servo motor; 33. Bending rod; 34. Infrared sensor; 35. Guide roller; 36. Threaded rod; 37. Slide rod; 38. Dovetail groove; 39. Slider; 310. Lower permanent magnet; 311. Ultrasonic transmitter; 312. Dovetail block; 313. Mounting plate; 314. Upper permanent magnet; 315. Receiving probe; 4. Guide mechanism; 41. Third support; 42. Drive motor; 43. Active roller; 44. Upper pressure roller; 45. Sleeve; 46. Screw-connected seat; 47. Threaded adjusting rod. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Reference Figures 1-7 A detection device for white cardboard packaging includes a support plate 1. A paper feeding mechanism 2, an automatic detection mechanism 3, and a guide mechanism 4 are sequentially arranged on the upper side of the support plate 1. The automatic detection mechanism 3 includes a second support 31, which is fixedly installed on the upper side of the support plate 1. A servo motor 32 is fixedly installed on the outer wall of the second support 31. The output end of the servo motor 32 rotates through to the inner side of the second support 31, and a threaded rod 36 is fixedly installed on the output end of the servo motor 32. A slider 39 is screwed onto the threaded rod 36. A dovetail groove 38 is opened at the bottom of the upper side of the second support 31. A dovetail block 312 is slidably engaged inside the dovetail groove 38. An installation plate 313 is fixedly installed at the bottom of the dovetail block 312. A lower permanent magnet 310 and several ultrasonic transmitters 311 are fixedly installed on the upper side of the slider 39. An upper permanent magnet 314 and several receiving probes 315 are fixedly installed on the lower side of the installation plate 313.

[0034] In this embodiment, several ultrasonic transmitters 311 and several receiving probes 315 are installed in corresponding positions. Two slide rods 37 are symmetrically fixedly installed on the inner side of the second support 31. The slide rods 37 slide through the slider 39. Four guide rollers 35 are symmetrically rotated and installed on the inner side of the second support 31. A bent rod 33 is fixedly installed on the upper side of the second support 31. An infrared sensor 34 is fixedly installed at the lower end of the bent rod 33.

[0035] With the above structure, when the infrared sensor 34 emits an infrared laser downwards to sense the white cardboard being conveyed, when the white cardboard is used up, its lower side is no longer blocked by the white cardboard, and the controller 22 controls the indicator light 23 to light up, and notifies the staff to promptly guide the white cardboard on the next white cardboard roller 26 into the detection process. The setting of the four guide rollers 35 allows the white cardboard to pass horizontally between the four guide rollers 35, thereby ensuring the accuracy of thickness measurement.

[0036] In this embodiment, the paper feeding mechanism 2 includes a first support 21, which is fixedly installed on the upper side of the support plate 1. A controller 22 and an indicator light 23 are fixedly installed on the outer wall of the first support 21. Two fixed shafts 24 are fixedly installed on the inner wall of the first support 21. A white cardboard material roller 26 is sleeved on the outer side of the fixed shaft 24. A screw-on side cover 25 is screwed onto the end of the fixed shaft 24.

[0037] With the above structure, two sets of white cardboard material rollers 26 are sleeved on the two fixed shafts 24 on the side of the first support 21. One set of white cardboard material rollers 26 is used for feeding material in actual testing, and the other set is used for subsequent preparation of material for subsequent white cardboard testing. There is no need to reinstall the white cardboard material rollers 26, reducing downtime.

[0038] In this embodiment, the guide mechanism 4 includes a third support 41, which is fixedly installed on the upper side of the support plate 1. An active roller 43 is rotatably installed on the inner side of the third support 41, and a drive motor 42 is fixedly installed on the side of the third support 41. The output end of the drive motor 42 is connected to the shaft coupling of the active roller 43. An upper pressure roller 44 is provided on the upper side of the active roller 43. Sleeves 45 are rotatably installed at both ends of the upper pressure roller 44. A threaded adjusting rod 47 is rotatably installed on the upper side of the sleeve 45. A threaded seat 46 is provided on the upper side of the threaded adjusting rod 47. The threaded adjusting rod 47 is threaded through to the upper side of the threaded seat 46, and the threaded seat 46 is threadedly installed on the inner wall of the third support 41.

[0039] With the above structure, when the drive motor 42 starts, it can drive the active roller 43 to rotate, thereby providing conveying power for the white cardboard. The upper pressure roller 44 on its upper side is always pressed against the white cardboard during the conveying process to further perform leveling operations. At the same time, it adaptively follows the rotation during the conveying process to provide guidance for the conveying of the white cardboard.

[0040] In this embodiment, a hexagonal torsion seat is fixedly installed on the upper end of the threaded adjusting rod 47.

[0041] In this invention, during the conveying process of the white cardboard, the servo motor 32 is activated by the automatic detection mechanism 3, and its output end drives the threaded rod 36 to rotate. Since the threaded rod 36 is screwed to the slider 39, and the sliding rod 37 slides through the slider 39 to act as a guide, the slider 39 moves along a direction perpendicular to the conveying direction of the white cardboard inside the second support 31. The lower permanent magnet 310 and several ultrasonic transmitters 311 fixedly installed on the upper side of the slider 39 also move accordingly. The lower permanent magnet 310 drives the upper permanent magnet 314 under the upper mounting plate 313 through magnetic attraction, thereby causing the dovetail block 312 to slide in the dovetail groove 38, allowing the upper receiving probe 315 to move synchronously with the ultrasonic transmitter 311. Based on the ultrasonic ranging principle, several ultrasonic transmitters 311 emit ultrasonic waves towards the white cardboard, and several receiving probes 315, each with a corresponding position, receive the reflected ultrasonic waves. By measuring the round-trip time of the ultrasonic waves, the thickness of the white cardboard is accurately calculated. With the conveying action of the white cardboard and the reciprocating sliding action of the slider 39, the thickness detection points are widely distributed, enabling real-time monitoring of changes in the thickness of the white cardboard. The detection data is recorded on the controller 22 for subsequent data processing and analysis. The drive motor 42 starts, and its output end drives the active roller 43 to rotate through the coupling, providing conveying power for the white cardboard. The upper pressure roller 44 on the upper side of the active roller 43 presses against the white cardboard during the conveying process, further leveling the white cardboard. At the same time, the upper pressure roller 44 adaptively follows the rotation driven by the white cardboard, providing guidance for the conveying of the white cardboard. By rotating the hexagonal torsion seat at the upper end of the threaded adjusting rod 47, the position of the threaded adjusting rod 47 in the screw seat 46 can be adjusted, thereby adjusting the distance between the upper pressure roller 44 and the active roller 43, which is suitable for conveying and guiding white cardboard of different thicknesses. Under the action of the guiding mechanism 4, the white cardboard is smoothly conveyed out of the detection device, completing the entire detection process.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A white card packaging detection device, characterized by, It includes a support plate (1), and a paper feeding mechanism (2), an automatic detection mechanism (3) and a guiding mechanism (4) are sequentially arranged on the upper side of the support plate (1); The automatic detection mechanism (3) includes a second support (31), which is fixedly installed on the upper side of the support plate (1). A servo motor (32) is fixedly installed on the outer wall of the second support (31). The output end of the servo motor (32) rotates through to the inner side of the second support (31), and a threaded rod (36) is fixedly installed on the output end of the servo motor (32). A slider (39) is screwed onto the threaded rod (36). A dovetail groove (38) is opened at the bottom of the upper side of the second support (31). A dovetail block (312) is slidably engaged inside the dovetail groove (38). An installation plate (313) is fixedly installed at the bottom of the dovetail block (312). A lower permanent magnet (310) and several ultrasonic transmitters (311) are fixedly installed on the upper side of the slider (39). An upper permanent magnet (314) and several receiving probes (315) are fixedly installed on the lower side of the installation plate (313).

2. A white card packaging detection device according to claim 1, characterized in that, The installation positions of the plurality of ultrasonic transmitters (311) and the plurality of receiving probes (315) are in one-to-one correspondence. Two slide rods (37) are symmetrically fixedly installed on the inner side of the second support (31). The slide rods (37) slide through the slider (39). Four guide rollers (35) are symmetrically rotated on the inner side of the second support (31).

3. A detection device for white card packaging as claimed in claim 1, wherein, A bent rod (33) is fixedly installed on the upper side of the second support (31), and an infrared sensor (34) is fixedly installed on the lower end of the bent rod (33).

4. A white card packaging detection device according to claim 1, characterized in that, The paper feeding mechanism (2) includes a first support (21), which is fixedly installed on the upper side of the support plate (1). A controller (22) and an indicator light (23) are fixedly installed on the outer wall of the first support (21).

5. A detection device for white card packaging according to claim 4, characterized in that, Two fixed shafts (24) are fixedly installed on the inner wall of the first support (21), and a white cardboard material roller (26) is sleeved on the outer side of the fixed shafts (24).

6. A detection device for white card packaging according to claim 5, characterized in that, A screw-on end cap (25) is screwed onto the end of the fixed shaft (24).

7. A detection device for white card packaging as claimed in claim 1, wherein, The guiding mechanism (4) includes a third support (41), which is fixedly installed on the upper side of the support plate (1). An active roller (43) is rotatably installed on the inner side of the third support (41), and a drive motor (42) is fixedly installed on the side of the third support (41). The output end of the drive motor (42) is connected to the shaft coupling of the active roller (43).

8. A white card packaging detection device according to claim 7, characterized in that, An upper pressure roller (44) is provided on the upper side of the active roller (43), and a sleeve (45) is rotatably installed at both ends of the upper pressure roller (44). A threaded adjusting rod (47) is rotatably installed on the upper side of the sleeve (45).

9. A white card packaging detection device according to claim 8, characterized in that, A threaded adjustment rod (47) is provided with a threaded seat (46) on its upper side. The threaded adjustment rod (47) is threaded through to the upper side of the threaded seat (46), and the threaded seat (46) is threaded onto the inner wall of the third support (41).

10. A detection device for white card packaging according to claim 8, characterized in that, A hexagonal torsion seat is fixedly installed on the upper end of the threaded adjusting rod (47).

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