Paperboard thickness detection device

Abstract

The utility model relates to the field of carton production equipment, in particular to a paperboard thickness detection device which comprises a platform, a vertical plate, a sliding block and a self-recovery type linear displacement sensor, the vertical plate is connected to the rear side of the top of the platform, the front side of the vertical plate is connected with a guide rail and a mounting frame, the sliding block is slidably connected to the guide rail, and the front side of the sliding block is connected with an L-shaped frame; before detection, the adjusting block is rotated to enable the screw rod to extend downwards or retract relative to the self-recovery type linear displacement sensor, so that the lower side of the adjusting block is ensured to be abutted against the L-shaped frame, a gap between the adjusting block and the L-shaped frame is prevented from generating a detection error, and the subsequent detection precision is improved; meanwhile, the sliding block slides along the guide rail, the precision of the ascending stroke is improved, the L-shaped frame is driven to ascend to push the self-recovery type linear displacement sensor, the displacement variable is accurately measured through the self-recovery type linear displacement sensor, and the detection precision and the detection efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of carton production equipment, in particular to a cardboard thickness detection device. Background Art

[0002] Corrugated boxes, including calcium-plastic corrugated boxes, are the most widely used packaging product, consistently leading the way in terms of usage. For over half a century, thanks to their superior performance and processing properties, corrugated boxes have gradually replaced wooden crates and other transport containers, becoming the mainstay of transport packaging. Corrugated boxes are manufactured from corrugated cardboard through multiple processes, including die-cutting, creasing, and stapling or gluing. Before processing, the thickness of different types of corrugated cardboard must be measured. Subsequent steps adjust the position of the processing mechanism based on the cardboard thickness. However, because cardboard thickness often varies very slightly, manual testing often fails to meet inspection requirements, reducing both accuracy and efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of the utility model is to provide a cardboard thickness detection device with improved detection accuracy and efficiency, so as to facilitate one-click detection of the cardboard thickness of each different order, facilitate the operator to quickly adjust the relevant parameters, thereby saving time and improving the efficiency of order change.

[0004] The technical solution adopted by this utility model is:

[0005] A cardboard thickness detection device includes a platform, a vertical plate, a slider and a self-recovering linear displacement sensor. The vertical plate is connected to the top rear side of the platform, and its front side is connected to a guide rail and a mounting frame. The slider is slidably connected to the guide rail, and its front side is connected to an L-shaped frame. The self-recovering linear displacement sensor is fixedly connected to the front side of the mounting frame, and its bottom is connected to a screw rod via a thread. The bottom of the screw rod is connected to an adjustment block, the lower side of the adjustment block abuts the L-shaped frame, the bottom of the L-shaped frame is rotatably connected to a cylindrical roller, and the cylindrical roller abuts the upper side of the platform.

[0006] Preferably, a first mounting plate is symmetrically connected to the rear side of the mounting frame, a strip hole is provided on the first mounting plate, screw holes are provided on the vertical plate, several screw holes are evenly arranged along the vertical direction, a first screw is passed through the strip hole, and the first screw is threadedly connected to the screw hole after passing through the strip hole.

[0007] Preferably, grooves are symmetrically provided on both sides of the self - recovering linear displacement sensor. A rib is provided at the rear side of the groove. A second mounting piece is provided at the front side of the mounting frame. Connecting pieces are symmetrically provided on both sides of the second mounting piece. An elastic piece is connected to the connecting piece. Opposite sides of the two elastic pieces are both connected with clamping teeth. The two clamping teeth are respectively arranged in the two grooves. The rear side of the rib abuts against the second mounting piece, and its front side abuts against the clamping teeth. A second screw is threadedly connected to the mounting frame, and the second screw sequentially penetrates through the elastic piece and the second mounting piece.

[0008] Preferably, the bottom of the L - shaped frame is connected with a U - shaped frame. The U - shaped frame is arranged with an opening downward, and a rotating shaft is rotatably connected to the middle of it. The cylindrical roller is sleeved outside the rotating shaft.

[0009] Preferably, a protective cover is detachably connected to the front side of the vertical plate. A cardboard insertion port is provided at the bottom of the protective cover.

[0010] Preferably, anti - slip lines are provided on the outer surface of the adjusting block.

[0011] Preferably, a wire passing hole is provided on the vertical plate.

[0012] Preferably, the material of the cylindrical roller is nylon glue.

[0013] Preferably, the self - recovering linear displacement sensor adopts a KTR - 25mm displacement sensor.

[0014] The beneficial effects of the present utility model are as follows:

[0015] Before detection, by rotating the adjusting block, the screw rod extends downward or retracts relative to the self - recovering linear displacement sensor, so as to ensure that the lower side of the adjusting block abuts against the L - shaped frame, prevent a gap between the adjusting block and the L - shaped frame from generating detection errors, and improve the subsequent detection accuracy. During detection, by inserting the cardboard to be measured under the cylindrical roller, the cylindrical roller is lifted, and at the same time, the slider slides along the guide rail, improving the accuracy of the rising stroke, and driving the L - shaped frame to rise and push the self - recovering linear displacement sensor. The self - recovering linear displacement sensor accurately measures the displacement variable, improving the detection accuracy and detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the first three - dimensional schematic diagram of the present utility model.

[0017] Figure 2 is the second three - dimensional schematic diagram of the present utility model.

[0018] Figure 3 is the structural decomposition schematic diagram of the present utility model.

[0019] Figure 4 is Figure 3 the enlarged schematic diagram at A in

[0020] Figure 5 The figure shows the installation diagram of the protective cover.

[0021] In the figure: 1. Platform; 2. Vertical plate; 3. Slider; 4. Self-recovering linear displacement sensor; 5. Guide rail; 6. Mounting bracket; 7. L-shaped bracket; 8. Screw; 9. Adjustment block; 10. Cylindrical roller; 11. First mounting plate; 12. Strip hole; 13. Screw hole; 14. Groove; 15. Raised strip; 16. Second mounting plate; 17. Connecting plate; 18. Elastic plate; 19. Clamping teeth; 20. Second screw; 21. L-shaped bracket; 22. Rotating shaft; 23. Protective cover; 24. Cardboard insertion port; 25. Anti-slip groove; 26. Wire hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a cardboard thickness detection device, including a platform 1, a vertical plate 2, a slider 3 and a self-recovering linear displacement sensor 4, the vertical plate 2 is connected to the top rear side of the platform 1, and its front side is connected to a guide rail 5 and a mounting frame 6, the slider 3 is slidably connected to the guide rail 5, and its front side is connected to an L-shaped frame 7, the self-recovering linear displacement sensor 4 is fixedly connected to the front side of the mounting frame 6, and its bottom is connected to a screw rod 8 through a thread, the bottom of the screw rod 8 is connected to an adjustment block 9, the lower side of the adjustment block 9 abuts against the L-shaped frame 7, the bottom of the L-shaped frame 7 is rotatably connected to a cylindrical roller 10, and the cylindrical roller 10 abuts against the upper side of the platform 1;

[0024] Before the test, the adjusting block 9 is rotated to make the screw 8 extend or retract downward relative to the self-recovering linear displacement sensor 4, driving the adjusting block 9 to move up or down relative to the self-recovering linear displacement sensor 4, thereby ensuring that the lower side of the adjusting block 9 is in contact with the L-shaped frame 7, preventing the gap between the adjusting block 9 and the L-shaped frame 7 from causing a detection error, thereby improving the subsequent detection accuracy. During the test, the cardboard to be tested is inserted from the lower side of the cylindrical roller 10, so that the cardboard to be tested lifts the cylindrical roller 10, and at the same time drives the slider 3 to slide along the guide rail 5, thereby improving the accuracy of the rising stroke, and driving the L-shaped frame 7 to rise and push The rod body of the self-recovering linear displacement sensor 4 drives the sliding potentiometer contact inside the self-recovering linear displacement sensor 4 to move along the resistance material. This movement will cause a change in the resistance value, which is converted into a corresponding voltage signal. The magnitude of the displacement can be determined by measuring the output voltage signal, thereby achieving the effect of accurately measuring the displacement variable through the self-recovering linear displacement sensor 4, improving the detection accuracy and efficiency, so that the cardboard thickness of each different row of orders can be detected with one click, which is convenient for the operator to quickly adjust the relevant parameters, thereby saving time and improving the work efficiency of order changing.

[0025] The L-shaped bracket 7 is provided with a plurality of screw holes 13 on the rear panel 2, and the plurality of screw holes 13 on the rear panel 2 are provided with a plurality of screw holes 13 on the rear panel 2.

[0026] In order to facilitate further adjustment of the installation height of the self - restoring linear displacement sensor 4, ensure that the lower side of the adjusting block 9 abuts against the L - shaped frame 7, prevent a gap between the adjusting block 9 and the L - shaped frame 7 from causing detection errors, and improve the subsequent detection accuracy. In this embodiment, preferably, grooves 14 are symmetrically provided on both sides of the self - restoring linear displacement sensor 4, a rib 15 is provided on the rear side of the groove 14, a second mounting piece 16 is provided on the front side of the mounting frame 6, connecting pieces 17 are symmetrically provided on both sides of the second mounting piece 16, elastic pieces 18 are connected to the connecting pieces 17, clamping teeth 19 are connected to the opposing sides of the two elastic pieces 18, the two clamping teeth 19 are respectively arranged in the two grooves 14, the rear side of the rib 15 abuts against the second mounting piece 16, and its front side abuts against the clamping teeth 19. A second screw 20 is threadedly connected to the mounting frame 6, and the second screw 20 sequentially passes through the elastic piece 18 and the second mounting piece 16. The purpose is to lift the self - restoring linear displacement sensor 4, make the clamping teeth 19 relatively move to different height positions inside the groove 14, and then make the second screw 20 sequentially pass through the elastic piece 18 and the second mounting piece 16 and be threadedly connected to the mounting frame 6, so that the screw head of the second screw 20 presses the elastic piece 18 against one side of the second mounting piece 16, thereby clamping the rib 15 by the second mounting piece 16 and the clamping teeth 19, forming the fixation of the self - restoring linear displacement sensor 4, facilitating the adjustment of the installation height of the self - restoring linear displacement sensor 4, ensuring that the lower side of the adjusting block 9 abuts against the L - shaped frame 7, preventing a gap between the adjusting block 9 and the L - shaped frame 7 from causing detection errors, and improving the subsequent detection accuracy.

[0027] In order to facilitate the smooth insertion of the test cardboard under the cylindrical roller 10, in this embodiment, preferably, the bottom of the L - shaped frame 7 is connected with a U - shaped frame 21, the U - shaped frame 21 is arranged with an opening downward, and a rotating shaft 22 is rotatably connected to the middle thereof. The cylindrical roller 10 is sleeved outside the rotating shaft 22. The purpose is that when inserting the test cardboard under the cylindrical roller 10, the cylindrical roller 10 and the rotating shaft 22 form a rotation relative to the U - shaped frame 21, reducing the relative friction between the cylindrical roller 10 and the test cardboard, and ensuring the smooth insertion of the test cardboard.

[0028] In order to facilitate the protection of the slider 3, the guide rail 5 and the self - restoring linear displacement sensor 4, in this embodiment, preferably, a protective cover 23 is detachably connected to the front side of the vertical plate 2, and a cardboard insertion port 24 is provided at the bottom of the protective cover 23. The purpose is to protect the slider 3, the guide rail 5 and the self - restoring linear displacement sensor 4 through the protective cover 23, prevent dust from entering and prevent external objects from colliding, extend the service life of the equipment, and insert the test cardboard through the cardboard insertion port 24.

[0029] In order to facilitate the rotation of the adjusting block 9, in this embodiment, preferably, anti - slip lines 25 are provided on the outer surface of the adjusting block 9. The purpose is to prevent slipping through the anti - slip lines 25, thereby facilitating the rotation of the adjusting block 9.

[0030] In order to facilitate the routing of the self-recovering linear displacement sensor 4, in this embodiment, preferably, a wire hole 26 is provided on the vertical plate 2, the purpose of which is to pass the wires connected to the self-recovering linear displacement sensor 4 through the wire hole 26 to facilitate the routing of the self-recovering linear displacement sensor 4.

[0031] In order to reduce the weight of the cylindrical roller 10 and improve the wear resistance, in this embodiment, preferably, the cylindrical roller 10 is made of plastic.

[0032] In order to improve the measurement accuracy of the thickness of the cardboard, in this embodiment, preferably, the self-recovering linear displacement sensor 4 adopts a KTR-25mm displacement sensor.

[0033] The installation process of the self-recovering linear displacement sensor 4 is as follows: the strip hole 12 is matched with the screw holes 13 of different heights, and then the first screw is passed through the strip hole 12 and threadedly connected with the screw hole 13, so that the mounting bracket 6 can be fixed on different heights of the vertical plate 2, and then the self-recovering linear displacement sensor 4 is lifted and lowered to move the clamping teeth 19 relatively to positions of different heights inside the groove 14, and then the second screw 20 is sequentially passed through the elastic piece 18 and the second mounting piece 16 and is threadedly connected to the mounting bracket 6, so that the screw head of the second screw 20 is The elastic piece 18 is pressed toward one side of the second mounting piece 16, so that the second mounting piece 16 and the clamping teeth 19 clamp the convex strip 15 to fix the self-recovering linear displacement sensor 4. Finally, the adjusting block 9 is rotated to extend or retract the screw 8 downward relative to the self-recovering linear displacement sensor 4, driving the adjusting block 9 to rise or fall relative to the self-recovering linear displacement sensor 4, thereby ensuring that the lower side of the adjusting block 9 is in contact with the L-shaped frame 7, preventing the gap between the adjusting block 9 and the L-shaped frame 7 from causing detection errors, thereby improving the subsequent detection accuracy.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cardboard thickness detection device, characterized by: It includes a platform (1), a vertical plate (2), a slider (3) and a self - restoring linear displacement sensor (4). The vertical plate (2) is connected to the rear side of the top of the platform (1), and a guide rail (5) and a mounting bracket (6) are connected to its front side. The slider (3) is slidably connected to the guide rail (5), and an L - shaped bracket (7) is connected to its front side. The self - restoring linear displacement sensor (4) is fixedly connected to the front side of the mounting bracket (6), and a screw rod (8) is connected to its bottom by threading. The bottom of the screw rod (8) is connected to an adjusting block (9), and the lower side of the adjusting block (9) abuts against the L - shaped bracket (7). A cylindrical roller (10) is rotatably connected to the bottom of the L - shaped bracket (7), and the cylindrical roller (10) abuts against the upper side of the platform (1).

2. The cardboard thickness detection device according to claim 1, characterized in that: First mounting pieces (11) are symmetrically connected to the rear side of the mounting bracket (6). A strip - shaped hole (12) is provided on the first mounting piece (11). A screw hole (13) is provided on the vertical plate (2). A plurality of screw holes (13) are uniformly arranged in the vertical direction. A first screw penetrates through the strip - shaped hole (12) and is threadedly connected to the screw hole (13).

3. The cardboard thickness detection device according to claim 1, characterized in that: Grooves (14) are symmetrically provided on both sides of the self - restoring linear displacement sensor (4). A rib (15) is provided on the rear side of the groove (14). Second mounting pieces (16) are provided on the front side of the mounting bracket (6). Connecting pieces (17) are symmetrically provided on both sides of the second mounting piece (16). Elastic pieces (18) are connected to the connecting pieces (17). Clamping teeth (19) are connected to the opposite sides of the two elastic pieces (18). The two clamping teeth (19) are respectively arranged in the two grooves (14). The rear side of the rib (15) abuts against the second mounting piece (16), and its front side abuts against the clamping teeth (19). A second screw (20) is threadedly connected to the mounting bracket (6), and the second screw (20) sequentially penetrates through the elastic piece (18) and the second mounting piece (16).

4. The cardboard thickness detection device according to claim 1, characterized in that: A U - shaped bracket (21) is connected to the bottom of the L - shaped bracket (7). The U - shaped bracket (21) is arranged with an opening downward, and a rotating shaft (22) is rotatably connected to the middle of it. The cylindrical roller (10) is sleeved outside the rotating shaft (22).

5. The cardboard thickness detection device according to claim 1, characterized in that: A protective cover (23) is detachably connected to the front side of the vertical plate (2). A cardboard insertion port (24) is provided at the bottom of the protective cover (23).

6. The cardboard thickness detection device according to claim 1, characterized in that: Anti - slip lines (25) are provided on the outer surface of the adjusting block (9).

7. The cardboard thickness detection device according to claim 1, characterized in that: A wire - passing hole (26) is provided on the vertical plate (2).

8. The cardboard thickness detection device according to claim 1, characterized in that: The material of the cylindrical roller (10) is plastic.

9. The cardboard thickness detection device according to claim 1, characterized in that: The self - restoring linear displacement sensor (4) adopts a KTR - 25mm displacement sensor.

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