A plate thickness detection device

Abstract

This utility model relates to a sheet metal thickness detection device, including a mounting frame; a translational lifting guide frame and a feeding roller are mounted on the mounting frame; two sets of thickness detection boxes are arranged in a mirror image, with their opposite ends connected to the translational lifting guide frame one-to-one, and thickness detection components arranged in a matrix and independently detected at their opposite ends; a first mounting groove is provided on the thickness detection box; the thickness detection component includes a slider that slides up and down at the opening of the first mounting groove and a detection rod that slides into the slider at one end at the bottom of the first mounting groove and the other end at the slider; a displacement detection head is provided at the end of the detection rod that extends into the slider; adjacent sliders are slidably connected to each other, and a universal ball is provided at the end of each set of sliders away from the detection rod, which rolls and adheres to the surface of the sheet metal. This utility model, by setting up thickness detection components arranged in a matrix and independently detected, moves and detects thickness along an S-shaped trajectory. The detection is efficient, comprehensive, and accurate, ensuring the processing quality of PC sheets.

Description

Technical Field

[0001] This utility model relates to the field of PC sheet testing technology, specifically to a sheet thickness testing device. Background Technology

[0002] The thickness testing of PC sheets is of paramount importance because thickness is a core parameter directly affecting the sheet's performance, safety, lifespan, and compliance. First, sufficient thickness is fundamental to ensuring structural safety and load-bearing capacity (such as impact resistance and bending strength), preventing deformation, cracking, or even collapse under wind, snow loads, or impacts. Second, thickness is closely related to thermal insulation and sound insulation performance, making it particularly crucial for energy-saving and noise control applications. Third, insufficient thickness significantly reduces the sheet's resistance to UV aging, chemical corrosion, and physical wear, shortening its lifespan and increasing safety hazards. Fourth, thickness uniformity affects light scattering, impacting lighting uniformity and visual effects. Fifth, thickness is a mandatory indicator for meeting design specifications, national standards, and procurement contract requirements, serving as a core basis for acceptance and compliance. Sixth, testing is a necessary economic and quality supervision method for controlling production costs (avoiding excessive thickness and wasting raw materials) and preventing suppliers from cutting corners (ensuring the nominal thickness is met). Finally, accurate thickness is crucial for ensuring the tightness, flatness, and sealing of the installation (preventing water and air leaks).

[0003] Chinese patent document with authorization announcement number CN 217005755 U discloses a plate thickness detection device, including a frame, a controller, a conveyor belt, a drive mechanism, a detection mechanism, an inkjet press, a detection lifting mechanism, and a printing lifting mechanism, wherein the drive mechanism, the detection mechanism, the inkjet press, the detection lifting mechanism, and the printing lifting mechanism are all electrically connected to the controller.

[0004] Existing sheet metal thickness detection devices measure thickness along the direction of sheet metal movement, meaning the detection path is a straight line. This results in two main drawbacks: firstly, a small detection range, leading to errors for sheets with varying thicknesses; and secondly, limited data collection, lacking a basis for corrective action and compromising accuracy. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a plate thickness detection device.

[0006] The technical solution of this utility model is as follows: A plate thickness detection device includes a mounting frame; two sets of horizontally arranged translational lifting guide frames are arranged one above the other on the mounting frame, and pairs of feeding rollers are arranged one in front of the other; two sets of thickness detection boxes are arranged in a mirror image, with their opposite ends connected to the translational lifting guide frames one by one, and thickness detection components arranged in a matrix and independently detected at their opposite ends; a first mounting groove is provided on the thickness detection box; the thickness detection component includes a slider that slides up and down at the opening of the first mounting groove and a detection rod that slides into the slider at one end at the bottom of the first mounting groove and the other end at the slider; a displacement detection head is provided at the end of the detection rod that extends into the slider; adjacent sliders are slidably connected to each other, and a universal ball that rolls and adheres to the surface of the plate at the end of each set of sliders away from the detection rod.

[0007] Preferably, the slider is provided with a detection groove and a rolling groove with reverse openings; the displacement detection head is slidably disposed in the detection groove; a guide sleeve is provided at the opening of the detection groove; one end of the detection rod slides through the guide sleeve, extends into the detection groove and connects to the displacement detection head, and the other end is connected to the groove wall of the first mounting groove through the mounting base; a first return spring is sleeved on the detection rod; the upper end of the first return spring is connected to the mounting base and the lower end is connected to the guide sleeve, and the universal ball is slidably disposed in the rolling groove.

[0008] Preferably, a notch is provided on the side wall of the slider, and the notches of adjacent sliders are opposite each other to form a sliding groove with openings at the top and bottom; a sliding rod is provided at the bottom of the first mounting groove; the end of the sliding rod extends into the sliding groove and is slidably connected to its groove wall, and multiple sets of positioning sensors are provided on the side wall of the sliding rod along the moving direction of the notch.

[0009] Preferably, a cleaning hood is provided around the opening of the first mounting groove on the thickness detection box; the cleaning hood is provided with a slag collection port; the slag collection port is connected to an external negative pressure slag collection device through an air extraction pipe.

[0010] Preferably, the translation and lifting guide frame includes a first lead screw and a crossbeam arranged in parallel; the first lead screw is driven by a first motor and rotates to connect to the mounting frame; the translation drive block is threaded to the first lead screw to achieve horizontal movement; the crossbeam is fixedly set; the lifting drive box is connected to the translation drive block and is slidably connected to the crossbeam, and a cylinder is provided on the lifting drive box; the thickness detection box is lifted and lowered by the telescopic rod end connected to the cylinder.

[0011] Preferably, the mounting frame is provided with an adjustment box for adjusting the spacing of the paired feed rollers; the adjustment box includes a box body; a second mounting groove is provided on the box body; a second lead screw driven to rotate by a second motor is provided on the second mounting groove; the upper and lower ends of the second lead screw are respectively provided with adjustment blocks that are threaded to it and move in opposite directions; the adjustment blocks are slidably connected to the groove wall of the second mounting groove, and one end of the adjustment block extends out of the second mounting groove and is rotatably connected to the feed roller.

[0012] Preferably, each pair of feed rollers is provided with a position adjustment component at both ends; the position adjustment component includes an adjustment seat that translates along the length direction of the feed roller; and an adjustment roller that rotates along the conveying direction of the sheet is provided on the adjustment surface of the adjustment seat.

[0013] Preferably, each pair of feed rollers is provided with two pairs of adjusting rollers; the two pairs of adjusting rollers are respectively mirror images of each pair of feed rollers at both ends, and each pair of adjusting rollers is located at the middle of both sides of the pair of feed rollers.

[0014] Preferably, the mounting bracket is provided with a third mounting slot; the housing is also provided with a through channel connecting the third mounting slot; the through channel is located on both sides of the second mounting slot; the housing and the mounting bracket are provided with a translation component that pushes the position adjustment component to move horizontally; the translation component includes a third lead screw that rotates in the third mounting slot via a three-wheeled motor; the third lead screw is provided with a translation plate that moves horizontally along the third mounting slot via a threaded connection; the translation rod slides horizontally in the through channel, one end extending into the third mounting slot and connecting to the translation plate, and the other end connecting to the adjustment seat on the corresponding side. A second return spring is provided in the third mounting slot; the second return spring is sleeved on the translation rod, one end connecting to the translation plate, and the other end connecting to the outer periphery of the connection between the third mounting slot and the through channel.

[0015] Compared with existing technologies, the above-mentioned technical solution of this utility model has the following beneficial technical effects: This utility model, by setting up thickness detection components arranged in a matrix and independently detecting each other, cooperates with a translational lifting guide frame, conveying rollers, and position adjustment components to allow the sheet material to move back and forth along a fixed trajectory for conveying. At this time, the thickness detection box moves along the width direction of the sheet material, allowing the up-and-down thickness detection components to move synchronously along an S-shaped movement trajectory for detection. During the detection process, the sliders rise and fall synchronously with the curvature of the sheet material surface, and adjacent thickness detection components have overlapping detection points, thus allowing for repeated collection of sheet material thickness data and improving detection accuracy. The sliding rod not only guides the up-and-down sliding of the slider, ensuring smooth sliding, but also detects the relative displacement of the sliders on both sides, further correcting the thickness detection results. The cleaning hood moves synchronously around the perimeter, performing negative pressure vacuum cleaning of the detection area before the universal ball reaches its position, reducing measurement errors. The device performs sheet material thickness detection efficiently, comprehensively, and accurately, ensuring the processing quality of PC sheets. Attached Figure Description

[0016] Figure 1 This is a perspective view (view 1) of one embodiment of the present invention.

[0017] Figure 2 This is a perspective view (second viewpoint) of one embodiment of the present invention.

[0018] Figure 3This is a schematic diagram of the structure of the translational lifting guide frame, thickness detection box, and thickness detection component in one embodiment of the present invention.

[0019] Figure 4 This is a cross-sectional view of the thickness detection box in one embodiment of the present invention.

[0020] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0021] Figure 6 for Figure 4 Enlarged view of section B in the middle.

[0022] Figure 7 This is a schematic diagram of the structure of the adjusting box and the position adjusting component in one embodiment of the present invention.

[0023] Figure 8 This is a cross-sectional view of the regulating box and the mounting bracket in one embodiment of the present invention.

[0024] Reference numerals: 1. Mounting bracket; 101. Third mounting slot; 2. Adjustment box; 201. Box body; 202. Third lead screw; 203. Translation plate; 204. Translation rod; 205. Second return spring; 206. Adjusting block; 207. Second lead screw; 3. Feeding roller; 4. Position adjustment component; 401. Adjusting seat; 402. Adjusting roller; 5. Thickness detection box; 501. First mounting slot; 6. Thickness detection component; 601. Slider; 602. Universal ball; 603. Notch; 604. Slide rod; 605. Detection slot; 606. Displacement detection head; 607. Detection rod; 608. Mounting seat; 609. Guide sleeve; 610. First return spring; 7. Cleaning cover; 8. Crossbeam; 9. First lead screw; 10. Translation drive block; 11. Lifting drive box; 12. Air extraction pipe; 13. Slag collection port. Detailed Implementation

[0025] Example 1

[0026] like Figure 1-6As shown, the present invention proposes a sheet metal thickness detection device, including a mounting frame 1; two sets of horizontally arranged translational lifting guide frames are arranged one above the other on the mounting frame 1, and a pair of feeding rollers 3 are arranged one in front of the other; two sets of thickness detection boxes 5 are arranged in a mirror image, with their opposite ends connected to the translational lifting guide frames one by one, and thickness detection components 6 arranged in a matrix and independently detected at their opposite ends; a first mounting groove 501 is provided on the thickness detection box 5; the thickness detection component 6 includes a slider 601 that slides up and down at the opening of the first mounting groove 501 and a detection rod 607 that slides into the slider 601 at one end at the bottom of the first mounting groove 501 and the other end of the detection rod 607; a displacement detection head 606 is provided at the end of the detection rod 607 that extends into the slider 601; adjacent sliders 601 are slidably connected to each other, and a universal ball 602 that rolls and adheres to the surface of the sheet metal is provided at the end of each set of sliders 601 away from the detection rod 607.

[0027] In this embodiment, by setting up matrix-arranged, independently detecting thickness detection components 6 in conjunction with a translational lifting guide frame and a conveying roller 3, the thickness detection box 5 moves along the width direction of the sheet material during the back-and-forth movement and conveying process. The thickness detection components 6, moving up and down, simultaneously move along an S-shaped trajectory to complete the sheet material thickness detection. During inspection, the universal ball 602 adheres to the upper and lower end faces of the sheet material, undulating with the sheet material thickness as it moves. The slider 601 undulates (including its own undulation and the undulation of adjacent sliders 601), and then moves up and down along the detection rod 607. The displacement detection head 606 moves synchronously to acquire displacement data. Combining the displacement data of the matrix-arranged thickness detection components 6 with the displacement detection head 606, and working with the S-shaped moving track, not only can the sheet material thickness be comprehensively detected, but the thickness detection can also be corrected, resulting in more accurate detection results.

[0028] In an optional embodiment, the slider 601 is provided with a detection groove 605 with a reverse opening and a rolling groove; the displacement detection head 606 is slidably disposed in the detection groove 605; a guide sleeve 609 is provided at the opening of the detection groove 605; one end of the detection rod 607 slides through the guide sleeve 609, extends into the detection groove 605 and connects to the displacement detection head 606, and the other end is connected to the universal ball 602 of the first mounting groove 501 via the mounting base 608 and is slidably disposed in the rolling groove.

[0029] In this embodiment, by setting the detection groove 605 and the rolling groove, the displacement detection head 606 and the universal ball 602 are stably installed on both sides of the slider 601. The structure is compact, the design is reasonable, and it is convenient for thickness detection.

[0030] It should be further explained that a first reset spring 610 is fitted on the detection rod 607; the upper end of the first reset spring 610 is connected to the mounting base 608, and the lower end is connected to the guide sleeve 609; by setting the first reset spring 610, on the one hand, the up and down sliding of the displacement detection head 606 is stable and smooth, and on the other hand, the universal ball 602 is pushed to always be in close contact with the surface of the plate.

[0031] In an optional embodiment, a notch 603 is provided on the side wall of the slider 601, and the notches 603 are opposite to each other between adjacent sliders 601 to form a sliding groove with openings at the top and bottom; a sliding rod 604 is provided at the bottom of the first mounting groove 501; the end of the sliding rod 604 extends into the sliding groove and is slidably connected to its groove wall, and multiple sets of positioning sensors are provided on the side wall of the sliding rod 604 along the moving direction of the notch 603.

[0032] In this embodiment, multiple sets of sliders 601 rise and fall synchronously with the curvature changes of the sheet material surface. Adjacent thickness detection elements 6 have overlapping detection points, allowing for repeated acquisition of sheet material thickness data. Data processing can then be used to correct the sheet material thickness, improving detection accuracy. Furthermore, the slider 604 guides the up-and-down sliding of the sliders 601, ensuring smooth movement. It also detects the relative displacement of the sliders 601 on both sides. This relative displacement represents the curvature change of the sheet material, and this detection data can be used for further correction of the thickness detection.

[0033] Example 2

[0034] like Figure 3-4 As shown, the thickness detection device for sheet metal proposed in this utility model, compared with the first embodiment, has a cleaning cover 7 arranged around the opening of the first mounting groove 501 on the thickness detection box 5; the cleaning cover 7 is provided with a slag collection port 13; the slag collection port 13 is connected to an external negative pressure slag collection device through an air extraction pipe 12; when the thickness detection box 5 moves horizontally, the cleaning cover 7 moves synchronously on the periphery, and performs negative pressure dust suction cleaning on the detection area before the universal ball 602 moves into place, thereby reducing measurement errors.

[0035] Example 3

[0036] like Figure 1-3As shown, the present invention proposes a sheet metal thickness detection device. Compared with Embodiment 1, this embodiment includes a parallel-arranged first lead screw 9 and a crossbeam 8 on a translational lifting guide frame. The first lead screw 9 is driven by a first motor and rotatably connected to the mounting frame 1. A translational drive block 10 is threadedly connected to the first lead screw 9 to achieve horizontal movement. The crossbeam 8 is fixedly arranged. A lifting drive box 11 is connected to the translational drive block 10 and slidably connected to the crossbeam 8. A cylinder is provided on the lifting drive box 11. The thickness detection box 5 is lifted and lowered by the telescopic rod end connected to the cylinder. Driven by the first lead screw 9 and the crossbeam 8, the thickness detection box 5 moves horizontally. In conjunction with the forward and backward movement of the sheet metal, the displacement detection head 606 of the device performs S-shaped trajectory detection. The cylinder pushes the thickness detection box 5 to move up and down, so that the displacement detection head 606 is close to the sheet metal for adjusting the detection height.

[0037] Example 4

[0038] like Figure 7-8 As shown, the present invention proposes a plate thickness detection device. Compared with the first embodiment, this embodiment has an adjustment box 2 on the mounting frame 1 for adjusting the spacing of paired feeding rollers 3. The adjustment box 2 includes a box body 201. A second mounting groove is provided on the box body 201. A second lead screw 207 driven to rotate by a second motor is provided on the second mounting groove. Adjustment blocks 206 are respectively threaded to the upper and lower ends of the second lead screw 207 and move in opposite directions. The adjustment blocks 206 are slidably connected to the groove wall of the second mounting groove, and one end of the adjustment block 206 extends out of the second mounting groove and is rotatably connected to the feeding rollers 3.

[0039] In an optional embodiment, the second lead screw 207 is configured with a reverse thread.

[0040] In this embodiment, driven by the second lead screw 207, the two sets of adjusting blocks 206 move in opposite directions, causing the pair of conveying rollers 3 to move closer or further away, adjusting the spacing to meet the conveying needs of different sized plates. At the same time, the plates can be shaped and smoothed by extrusion.

[0041] In an optional embodiment, each pair of feed rollers 3 is provided with a position adjusting member 4 at both ends; the position adjusting member 4 includes an adjusting seat 401 that translates along the length of the feed roller 3; an adjusting roller 402 that rotates along the sheet material conveying direction is provided on the adjusting surface of the adjusting seat 401. By moving the adjusting seat 401 horizontally to near the edge of the sheet material, the adjusting roller 402 adheres to the sheet material and pushes it to the middle of the two sets of feed rollers 3. By pushing the sheet material from both sides, the sheet material is positioned for subsequent thickness detection.

[0042] It should be further explained that each pair of feeding rollers 3 is equipped with two pairs of adjusting rollers 402; the two pairs of adjusting rollers 402 are mirror images of each pair of feeding rollers 3 at both ends, and each pair of adjusting rollers 402 is located in the middle of both sides of the pair of feeding rollers 3. The two pairs of adjusting rollers 402 work together to limit the material from both sides of the feeding rollers 3. The position is adjusted from the feeding and discharging points of the material to be in the middle for thickness detection.

[0043] Example 5

[0044] like Figure 7-8 As shown, the plate thickness detection device proposed in this utility model, compared with the first embodiment, has a third mounting groove 101 on the mounting frame 1; a through channel connecting the third mounting groove 101 is also provided on the housing 201; the through channel is located on both sides of the second mounting groove; and a translation component for pushing the position adjustment component 4 to move horizontally is provided on the housing 201 and the mounting frame 1.

[0045] In an optional embodiment, the translation component includes a third lead screw 202 that rotates within a third mounting groove 101 via a motor drive; a translation plate 203 is provided on the third lead screw 202 and moves horizontally along the third mounting groove 101 via a threaded connection thereto; a translation rod 204 slides horizontally within a through channel, with one end extending into the third mounting groove 101 and connected to the translation plate 203, and the other end connected to an adjustment seat 401 on the corresponding side.

[0046] It should be further explained that by rotating the third lead screw 202, the translation plate 203 moves back and forth, and the translation rod 204 moves synchronously, thereby realizing the position adjustment of the position adjustment component to match the width of the plate.

[0047] In an optional embodiment, a second return spring 205 is provided in the third mounting groove 101; the second return spring 205 is sleeved on the translation rod 204, one end of which is connected to the translation plate 203, and the other end is connected to the outer periphery of the connection between the third mounting groove 101 and the through channel; by providing the second return spring 205, the horizontal movement of the translation rod 204 is stable and smooth.

[0048] The working principle of the sheet thickness detection device is as follows: Before detection, the PC sheet passes through two sets of feeding rollers 3 on one side, then through the two sets of thickness detection pieces 6 on the upper and lower sides, and finally through two sets of feeding rollers 3 on the other side. Next, the adjusting seat 401 moves horizontally to near the edge of the sheet, and the adjusting roller 402 adheres to the sheet and pushes it to the middle of the two sets of feeding rollers 3. The sheet is positioned by pushing it from both sides. Then, the two sets of feeding rollers 3 move closer together, clamping the sheet, further positioning it, and pushing it forward. Detection begins. During detection, the cylinder pushes the thickness detection box 5 up and down, causing the displacement detection head 606 to approach the sheet. Driven by the first lead screw 9 and the crossbeam 8, the thickness detection box 5 moves horizontally. In conjunction with the forward and backward movement of the sheet, the displacement detection head 606 performs an S-shaped trajectory detection. Multiple sets of independently sliding sliders 601, arranged in a matrix, rise and fall synchronously with the curvature of the sheet material surface. Adjacent thickness measuring elements 6 have overlapping detection points, allowing for repeated acquisition of sheet thickness data. Data processing then corrects the sheet thickness, improving detection accuracy. The sliding rod 604 guides the sliders 601's upward and downward movement, ensuring smooth sliding, and also detects the relative displacement of the sliders 601 on both sides, further correcting the thickness measurement results. During the detection process, the thickness measuring box 5 moves horizontally, while the cleaning cover 7 moves synchronously around it. Before the universal ball 602 reaches its position, negative pressure vacuuming cleans the detection area, reducing measurement errors.

[0049] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A plate thickness detection device characterized by comprising: Includes mounting frame (1); two sets of horizontally arranged translational lifting guide frames are set on the mounting frame (1), one above the other, and a pair of material conveying rollers (3) are set in front of and behind each other; Two sets of thickness detection boxes (5) are set in a mirror image. The opposite ends are connected to the translation and lifting guide frame one by one. The opposite ends are set with thickness detection components (6) arranged in a matrix and detected independently. The thickness detection box (5) is provided with a first mounting groove (501); the thickness detection component (6) includes a slider (601) that slides up and down in the groove of the first mounting groove (501) and a detection rod (607) that slides into the slider (601) at one end of the bottom of the first mounting groove (501) and at the other end; a displacement detection head (606) is provided at one end of the detection rod (607) that extends into the slider (601); adjacent sliders (601) are slidably connected to each other, and a universal ball (602) that rolls and adheres to the surface of the plate is provided at one end of each group of sliders (601) away from the detection rod (607).

2. The plate thickness detection device according to claim 1, characterized in that, The slider (601) is provided with a detection groove (605) with a reverse opening and a rolling groove; The displacement detection head (606) is slidably disposed in the detection groove (605); The groove opening of the detection groove (605) is provided with a guide sleeve (609); One end of the detection rod (607) slides through the guide sleeve (609), extends into the detection groove (605) and connects to the displacement detection head (606), and the other end is connected to the groove wall of the first mounting groove (501) through the mounting base (608). A first reset spring (610) is sleeved on the detection rod (607). The upper end of the first return spring (610) is connected to the mounting base (608), and the lower end is connected to the guide sleeve (609); The omnidirectional ball (602) is rolled within the rolling groove.

3. The plate thickness detection device according to claim 1, characterized in that, A notch (603) is provided on the side wall of the slider (601), and the notches (603) of adjacent sliders (601) are opposite to each other and are connected to form a groove with openings at the top and bottom; The bottom of the first mounting groove (501) is provided with a slide rod (604); the end of the slide rod (604) extends into the groove and is slidably connected to the groove wall; multiple sets of positioning sensors are provided on the side wall of the slide rod (604) along the moving direction of the notch (603).

4. The plate thickness detection device according to claim 1, characterized in that, A cleaning cover (7) is provided around the opening of the first mounting groove (501) on the thickness detection box (5); a slag collection port (13) is provided on the cleaning cover (7); the slag collection port (13) is connected to an external negative pressure slag collection device through an air extraction pipe (12).

5. The plate thickness detection device according to claim 1, characterized in that, The translational lifting guide frame includes a first lead screw (9) and a crossbeam (8) arranged in parallel. The first lead screw (9) is driven by the first motor to rotate and connect to the mounting bracket (1); the translation drive block (10) is connected to the first lead screw (9) by a thread to achieve horizontal movement; The crossbeam (8) is fixedly installed; the lifting drive box (11) is connected to the translation drive block (10) and is slidably connected to the crossbeam (8); the lifting drive box (11) is equipped with a cylinder; the thickness detection box (5) is lifted and lowered by the telescopic rod end connected to the cylinder.

6. The plate thickness detection device according to claim 1, characterized in that, The mounting frame (1) is provided with an adjustment box (2) for adjusting the spacing of the paired feed rollers (3); the adjustment box (2) includes a box body (201); the box body (201) is provided with a second mounting groove; the second mounting groove is provided with a second lead screw (207) driven to rotate by a second motor; the upper and lower ends of the second lead screw (207) are respectively provided with adjustment blocks (206) that are threadedly connected to it and move in opposite directions; the adjustment block (206) is slidably connected to the groove wall of the second mounting groove, and one end of the adjustment block (206) extends out of the second mounting groove and is rotatably connected to the feed roller (3).

7. The plate thickness detection device according to claim 6, characterized in that, Each pair of feed rollers (3) is provided with a position adjustment component (4) at both ends; the position adjustment component (4) includes an adjustment seat (401) that translates along the length direction of the feed roller (3); and an adjustment roller (402) that rotates along the conveying direction of the plate is provided on the adjustment surface of the adjustment seat (401).

8. The plate thickness detection device according to claim 7, characterized in that, Each pair of feed rollers (3) is provided with two pairs of adjusting rollers (402); the two pairs of adjusting rollers (402) are respectively mirrored at both ends of each pair of feed rollers (3), and each pair of adjusting rollers (402) is located in the middle of both sides of the pair of feed rollers (3).

9. A plate thickness detection device according to claim 8, characterized in that, The mounting bracket (1) is provided with a third mounting slot (101); the housing (201) is also provided with a through channel connecting the third mounting slot (101); the through channel is located on both sides of the second mounting slot; the housing (201) and the mounting bracket (1) are provided with a translation component that allows the position adjustment component (4) to move horizontally; The translation component includes a third lead screw (202) that rotates within a third mounting slot (101) via a three-motor drive; The third lead screw (202) is provided with a translation plate (203) that moves horizontally along the third mounting groove (101) through a threaded connection with it; the translation rod (204) slides horizontally in the through channel, with one end extending into the third mounting groove (101) and connecting to the translation plate (203), and the other end connecting to the adjustment seat (401) on the corresponding side. A second reset spring (205) is provided in the third mounting groove (101); the second reset spring (205) is sleeved on the translation rod (204), one end of which is connected to the translation plate (203), and the other end is connected to the outer periphery of the connection between the third mounting groove (101) and the through channel.

Images