Packaging box paperboard thickness detection structure

Abstract

The utility model discloses a packaging box paperboard thickness detection structure, which relates to the technical field of packaging box paperboard thickness detection and comprises a base, vertical rods are symmetrically arranged on two sides of the base, a detection mechanism is arranged between the vertical rods, and a longitudinal guide rail and a second transverse guide rail drive a detection plate to reciprocate along Y and Z directions. A transverse rod is arranged on the bottom plate, multiple sets of brushes are symmetrically arranged at the upper end and the lower end of the transverse rod, the transverse rod is driven to horizontally move in a reciprocating mode through a first transverse guide rail, the brushes clean the contact faces of the bottom plate and the paperboard and equipment, and impurity attachment is avoided; the two sides of the base are provided with infrared transmitters and infrared receivers, the flatness of the bottom plate is detected through the transmitters and the infrared receivers, it is guaranteed that the initial flatness of the bottom plate meets the requirement, and accumulative errors and reduction of the measurement precision in follow-up detection are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing box paperboard thickness detection technical field, specifically related to a packing box paperboard thickness detection structure. BACKGROUND

[0002] Packing box paperboard is very extensive in the application of packing industry, and is indispensable to product transportation and storage in many fields such as household appliance packing, logistics, electronics and the like, and the thickness of paperboard is a key factor to determine the quality of packing box, and suitable paperboard thickness can effectively buffer external impact force, prevent product from being damaged by collision, extrusion and the like in the transportation process.

[0003] Production enterprises will formulate strict internal standards to carefully require the tolerance range of packing box paperboard thickness in order to guarantee the quality of product and the image of brand, and it is necessary to detect the thickness of paperboard after the production of paperboard is completed using a thickness detection device to detect the thickness of paperboard, to screen the product with unsatisfied thickness through detection data, and to improve production process according to detection data, reduce the rate of defective products and improve the comprehensive benefit of equipment.

[0004] The traditional packing box paperboard thickness detection device does not detect the flatness of the bottom plate before detection, and the bottom plate may be locally bulged in the process of use and pressing, resulting in that the initial detection surface of the bottom plate is not flat, and affecting the detection accuracy of paperboard in the subsequent process. UTILITY MODEL CONTENTS

[0005] The utility model discloses a packing box paperboard thickness detection structure, solve the following technical problems: the traditional packing box paperboard thickness detection device does not detect the flatness of the bottom plate before detection, and the surface of the bottom plate is easy to attach a large amount of paper scraps, dust and fiber ball in the process of packing box paperboard thickness detection, and the attachment of impurities is easy to produce measurement error, and reduce the detection accuracy.

[0006] The utility model discloses a packing box paperboard thickness detection structure, solve the following technical problems: the traditional packing box paperboard thickness detection device does not detect the flatness of the bottom plate before detection, and the surface of the bottom plate is easy to attach a large amount of paper scraps, dust and fiber ball in the process of packing box paperboard thickness detection, and the attachment of impurities is easy to produce measurement error, and reduce the detection accuracy.

[0007] A packing box paperboard thickness detection structure, the both sides symmetry of base fixedly arranged with vertical board, be provided with detection mechanism between the vertical board, the detection mechanism is used for along Y, Z direction removal realizes the detection to packing box paperboard different area, the middle of base upper surface is provided with bottom plate, the both side surface of bottom plate is slidably provided with stand, be provided with crosspiece fixedly between the stand, the upper and lower end of crosspiece is fixedly provided with a plurality of groups of brush.

[0008] As a further scheme of the utility model: the both ends of the bottom plate are symmetrically provided with sliding grooves, first horizontal guide rails are slidably arranged in the sliding grooves, and the first horizontal guide rails are slidably connected with the vertical rods.

[0009] As a further scheme of the utility model: one side of the base is fixedly provided with an infrared emitter, and the other side of the base is provided with an infrared receiver corresponding to the plurality of infrared emitters.

[0010] As a further scheme of the utility model: the detection mechanism comprises a supporting plate fixedly arranged between the two vertical plates, a longitudinal guide rail is arranged at the middle portion of the supporting plate, a top plate is slidably connected to the longitudinal guide rail, second horizontal guide rails are symmetrically arranged at the lower end of the top plate, a detection plate is slidably arranged on the second horizontal guide rails, pointers are symmetrically fixedly arranged at the lower end of the two side faces of the detection plate, and pressing units are symmetrically arranged at the both ends of the detection plate.

[0011] As a further scheme of the utility model: a plurality of pressure sensors are fixedly arranged at the lower end of the detection plate.

[0012] As a further scheme of the utility model: the pressing unit comprises springs threadedly connected to four corner points at the lower end of the detection plate, and extrusion plates are fixedly arranged at the lower end of the springs.

[0013] As a further scheme of the utility model: through holes are formed at the middle portions of the two vertical plates, and scale lines are drawn on one side face of the through holes.

[0014] As a further scheme of the utility model: a sliding block is threadedly movably arranged in the through hole, and a pressure monitor is fixedly arranged on the sliding block.

[0015] The utility model has the advantages of:

[0016] (1) the utility model drives the detection plate to reciprocatingly move up and down and back and forth through the longitudinal guide rail and the second horizontal guide rail, realizes the detection of the thickness of different areas of the packaging box paperboard, drives the horizontal rod to reciprocatingly move horizontally through the first horizontal guide rail, regularly sweeps the bottom plate and the contact surface of the equipment and the paperboard, avoids a large amount of impurities from adhering, causes the paperboard surface to appear pressing damage, wrinkles and measurement errors, and reduces product quality and thickness detection precision.

[0017] (2) the utility model detects the initial flatness of the bottom plate through the infrared emitters and receivers symmetrically arranged on the two sides of the bottom plate, guarantees that the flatness of the bottom plate before thickness detection meets the requirements, avoids accumulated errors, and improves product measurement precision. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in connection with the drawings.

[0019] Figure 1 This is a schematic diagram of the overall internal structure of this utility model;

[0020] Figure 2 This is a top view of the base plate of this utility model.

[0021] Figure 3 This is a side view of the base plate of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the brush of this utility model;

[0023] Figure 5 This is a utility model Figure 1 Enlarged structural diagram at point A;

[0024] Figure 6 This is a side view of the vertical plate of this utility model.

[0025] In the diagram: 1. Base; 2. Vertical plate; 3. Detection mechanism; 4. Base plate; 5. Upright pole; 6. Horizontal bar; 7. Brush; 8. Slide groove; 9. First transverse guide rail; 10. Infrared transmitter; 11. Infrared receiver; 12. Support plate; 13. Longitudinal guide rail; 14. Top plate; 15. Second transverse guide rail; 16. Detection plate; 17. Pointer; 18. Pressing unit; 19. Pressure sensor; 20. Spring; 21. Extrusion plate; 22. Through hole; 23. Scale line; 24. Slider; 25. Pressure monitor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1, please refer to Figures 1-4As shown, this utility model is a packaging box cardboard thickness detection structure, including a base 1. Vertical plates 2 are symmetrically fixed on both sides of the base 1. A detection mechanism 3 is arranged between the vertical plates 2 and directly above the base 1. The detection mechanism 3 is used to move along the Y (up and down) and Z (back and forth) directions to detect the thickness of different areas of the packaging box cardboard. A bottom plate 4 is fixedly arranged in the middle of the upper surface of the base 1. Vertical rods 5 are symmetrically slidably arranged on both sides of the bottom plate 4. A horizontal bar 6 is fixedly arranged between two vertical rods 5. Multiple sets of brushes 7 are fixedly arranged at the upper and lower ends of the horizontal bar 6. The brushes 7 are symmetrically arranged at equal intervals at the upper and lower ends of the horizontal bar 6. The brushes 7 are used to clean the surface of the bottom plate 4. The detection mechanism 3 moves horizontally back and forth to clean the contact surface between the detection mechanism 3 and the packaging box cardboard, avoiding impurities adhering to the surface of the packaging box cardboard and the contact surface between the equipment and the cardboard, which would affect the detection accuracy.

[0028] The base plate 4 has symmetrical grooves 8 on both sides. A first transverse guide rail 9 is slidably arranged in the groove 8. The first transverse guide rail 9 is driven by a servo motor to slide the lead screw or by a cylinder to drive the piston rod to achieve horizontal reciprocating movement. The first transverse guide rail 9 is slidably connected to the upright 5.

[0029] In summary, in the case of a packaging box cardboard thickness detection structure, when an external power source is connected, before the packaging box cardboard is tested, the operator drives the upright 5 to slide horizontally via the first transverse guide rail 9, thereby causing the crossbar 6 to move back and forth. The surface of the bottom plate 4 is cleaned by the brush 7 set on the crossbar 6. After a batch of centralized testing is completed, a large amount of paper scraps, dust and other impurities will be attached to the surface of the bottom plate 4. The brush 7 is used to clean the bottom plate 4, improving the thickness detection accuracy. The detection mechanism 3 is lowered to a certain height, and the brush 7 set at the upper end of the crossbar 6 can clean the contact surface between the detection mechanism 3 and the packaging box cardboard, avoiding the adhesion of impurities.

[0030] Example 2: Based on Example 1, please refer to... Figures 1-2 As shown, an infrared transmitter 10 is fixedly installed on one side of the base 1. The transmitting end of the infrared transmitter 10 is flush with the upper surface of the base plate 4. On the other side of the base 1, infrared receivers 11 are correspondingly installed for multiple infrared transmitters 10. Infrared rays are emitted by the infrared transmitters 10, pass through the upper surface of the base plate 4, and are received by the corresponding infrared receivers 11. If the surface of the base plate 4 is warped or bumped, and the infrared rays are blocked, it indicates that the base plate 4 is not flat. Before the packaging box cardboard is inspected, the flatness of the base plate 4 needs to be repaired to meet the flatness design requirements.

[0031] In summary, the cardboard thickness testing equipment requires flatness calibration and adjustment of the base plate 4 before use and after testing a batch of products. If the flatness of the base plate 4 does not meet the requirements, it will lead to inaccurate test results and measurement errors, requiring retesting, which is time-consuming, labor-intensive, and wasteful of resources. After testing a batch of products, infrared rays are emitted by the infrared transmitter 10 and received by the infrared receiver 11 at the other end of the base plate 4. Data analysis can determine whether the flatness of the base plate 4 meets the initial design requirements. If it does not meet the requirements, flatness correction is required before testing the cardboard thickness. At the same time, the flatness of the base plate 4 should be monitored regularly during the testing process to improve the testing quality.

[0032] Example 3: Based on Example 1, please refer to... Figures 1-2 , Figures 5-6 As shown, the detection mechanism 3 includes a support plate 12 fixedly disposed between two vertical plates 2. A longitudinal guide rail 13 is disposed in the middle of the support plate 12. The longitudinal guide rail 13 is driven by a servo motor to slide a lead screw or by a cylinder to drive a piston rod, thereby realizing its reciprocating movement along the Y direction (up and down). A top plate 14 is slidably connected to the longitudinal guide rail 13. The two ends of the top plate 14 are slidably sleeved with the two vertical plates 2. A second transverse guide rail 15 is symmetrically disposed at the lower end of the top plate 14. The second transverse guide rail 15 is driven by a servo motor to slide a lead screw. A piston rod is driven by a cylinder or pneumatic cylinder to reciprocate along the Z direction (forward and backward movement). A detection plate 16 is slidably mounted on the second transverse guide rail 15. Pointers 17 are symmetrically fixed at the lower ends of both sides of the detection plate 16. The pointers 17 are used to accurately indicate the thickness of the cardboard. A pressing unit 18 is symmetrically mounted on both ends of the detection plate 16 on the top plate 14. The pressing unit 18 is used to press the cardboard around its perimeter during the detection process to prevent the cardboard from warping due to the lifting of the detection plate 16, which would affect the detection accuracy.

[0033] Multiple pressure sensors 19 are fixedly installed at the lower end of the detection plate 16. The pressure sensors 19 are arranged symmetrically at equal intervals at the bottom of the detection plate 16. The pressure sensors 19 are used to detect the downward pressure of the detection plate 16 driven by the longitudinal guide rail 13. When the pressure is within a certain range, the pressure is stopped. At this time, the thickness of the cardboard of the packaging box can be measured. At the same time, the pressure sensors 19 can perform pressure alarm. If the pressure value is too high, the alarm device will be triggered to remind the operator to adjust the pressure range and avoid damage to the cardboard due to excessive pressure.

[0034] The clamping unit 18 includes springs 20 symmetrically threaded to the four corners of the lower end of the detection plate 16. A pressing plate 21 is fixedly installed at the lower end of the springs 20. The stiffness coefficient of the springs 20 is adjusted within a suitable range to ensure that the pressing force of the springs 20 on the cardboard does not exceed the compressive strength of the cardboard during the downward movement of the detection plate 16. At the same time, when the cardboard is thin, the length of the springs 20 allows the pressing plate 21 to always keep pressing and fixing the two ends of the cardboard. When the cardboard is thick, the pressure of the springs 20 should not exceed the compressive strength of the cardboard to avoid the cardboard surface from cracking or wrinkling due to excessive pressure. When the width of the packaging box cardboard changes, the position of the clamping unit 18 can be moved by rotating the bolts to adapt to the thickness detection requirements of cardboard of different widths.

[0035] Both vertical plates 2 have through holes 22 in the middle. One side of each through hole 22 is engraved with scale lines 23. The pointer 17 moves up and down inside the through hole 22 to accurately indicate the thickness of the cardboard. Before testing, the pointers 17 are symmetrically arranged to indicate the value on the scale line 23. If the two pointers 17 indicate the same scale value, it means that the detection plate 16 is kept horizontal and the flatness of the detection plate 16 meets the requirements during the downward movement. Then, the cardboard is placed on the base plate 4 and the detection plate 16 is moved down. The thickness of the cardboard can be directly obtained from the scale value indicated by the pointers 17 on the scale line 23.

[0036] Inside the through hole 22, a slider 24 is movably mounted via an adjusting bolt thread. A pressure monitor 25 is fixedly mounted on the slider 24, located below the pointer 17. As the pointer 17 moves downward, it can press the pressure monitor 25. The pressure monitor 25 is equipped with an alarm device. The error value of the packaging cardboard is converted into a displacement error. The height of the top of the pressure monitor 25 on the slider 24 is adjusted by the adjusting bolt, setting the top of the pressure monitor 25 within the range of the converted scale line 23. When the thickness of the detected packaging cardboard is too small and does not meet the design requirements, the downward displacement of the pointer 17 exceeds the error range. Pressing the pressure monitor 25 will trigger an alarm, indicating that the thickness of the packaging cardboard does not meet the design requirements. The cardboard is then removed and placed in the defective product area for centralized processing.

[0037] In summary, before testing, the positions of the pressing plates 21 threaded at both ends of the testing plate 16 are adjusted so that the pressing plates 21 are located at the four corner edges of the cardboard. The testing plate 16 is moved downward by the longitudinal guide rail 13, and the pressing plates 21 keep pressing and fixing the four corners of the cardboard. After testing one area, the top plate 14 is moved back and forth horizontally by the second transverse guide rail 15. By controlling the distance of each movement, the thickness of different areas of the cardboard can be tested. The pressure sensor 19 set at the lower end of the testing plate 16 can be set with an initial pressure range. When the pressure value is too high, an alarm is triggered to avoid damage to the cardboard due to excessive pressure. When the pressure sensor 19 reaches the set pressure range, the testing plate 16 stops moving downward. At this time, the value indicated by the pointer 17 on the scale line 23 is the detected thickness of the cardboard of the packaging box. If the cardboard is thin, the pointer 17 will touch the pre-set pressure monitor 25 during the downward movement to provide a prompt for cardboard that does not meet the design requirements, thereby improving the testing efficiency.

[0038] The working principle of this utility model is as follows: A packaging box cardboard thickness detection structure is used by the operator to periodically clean the base plate 4 with brushes 7 evenly spaced at the upper and lower ends of the crossbar 6 to prevent impurities from adhering to the surface of the base plate 4 and causing measurement errors. After cleaning, the thickness of different areas of the packaging box cardboard is detected by moving along the Y (up and down) and Z (back and forth) directions. The pressure sensor 19 controls the downward displacement of the detection plate 16, and the pressure monitor 25 filters out cardboard that does not meet the design requirements, thereby improving detection efficiency.

[0039] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A structure for detecting the thickness of cardboard packaging boxes, comprising a base (1), characterized in that, Vertical plates (2) are symmetrically fixed on both sides of the base (1), and a detection mechanism (3) is provided between the vertical plates (2). The detection mechanism (3) is used to move along the Y and Z directions to detect different areas of the packaging box cardboard. A base plate (4) is provided in the middle of the upper surface of the base (1). Uprights (5) are slidably provided on both sides of the base plate (4). A crossbar (6) is fixed between the uprights (5). Multiple sets of brushes (7) are fixedly provided at the upper and lower ends of the crossbar (6).

2. The packaging box cardboard thickness detection structure according to claim 1, characterized in that, The base plate (4) has symmetrical grooves (8) on both sides, and a first transverse guide rail (9) is slidably arranged in the groove (8). The first transverse guide rail (9) is slidably connected to the upright (5).

3. The packaging box cardboard thickness detection structure according to claim 1, characterized in that, An infrared transmitter (10) is fixedly installed on one side of the base (1), and an infrared receiver (11) is installed on the other side of the base (1) corresponding to the multiple infrared transmitters (10).

4. The packaging box cardboard thickness detection structure according to claim 1, characterized in that, The detection mechanism (3) includes a support plate (12) fixedly disposed between two vertical plates (2). A longitudinal guide rail (13) is provided in the middle of the support plate (12). A top plate (14) is slidably connected to the longitudinal guide rail (13). A second transverse guide rail (15) is symmetrically disposed at the lower end of the top plate (14). A detection plate (16) is slidably disposed on the second transverse guide rail (15). A pointer (17) is symmetrically fixedly disposed at the lower ends of both sides of the detection plate (16). A pressing unit (18) is symmetrically disposed at both ends of the top plate (14) and the detection plate (16).

5. The packaging box cardboard thickness detection structure according to claim 4, characterized in that, Multiple pressure sensors (19) are fixedly installed at the lower end of the detection plate (16).

6. The packaging box cardboard thickness detection structure according to claim 4, characterized in that, The clamping unit (18) includes springs (20) threaded to the four corners of the lower end of the detection plate (16), and a pressing plate (21) is fixedly provided at the lower end of the springs (20).

7. The packaging box cardboard thickness detection structure according to claim 1, characterized in that, Both vertical plates (2) have through holes (22) in the middle, and scale lines (23) are engraved on one side of the two through holes (22).

8. The packaging box cardboard thickness detection structure according to claim 7, characterized in that, Inside the through hole (22), a slider (24) is movably installed via an adjusting bolt, and a pressure monitor (25) is fixedly installed on the slider (24).

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