A device for detecting thickness of melamine sheet

Abstract

The present invention relates to a plate thickness detection device, and in particular to a melamine plate thickness detection device. The purpose of the present invention is to provide a melamine plate thickness detection device that can automatically detect the thickness of the plate, requires less labor, and has high work efficiency. The technical solution of the present invention is: a melamine plate thickness detection device, including a mounting plate, a shell, a lifting rod, etc., the upper side of the mounting plate is provided with a shell, and the lower left and right sides of the shell are both slidably provided with lifting rods, and the lifting rods pass through the shell. The present invention places the plate between two rollers, and then rotates the first rotating block inward to limit the plate, and then turns on the motor so that the roller rolls on the surface of the plate, thereby automatically detecting the thickness of the plate.

Description

Technical Field

[0001] The invention relates to a plate thickness detection device, in particular to a melamine plate thickness detection device. Background Art

[0002] Melamine board is a decorative board made by soaking paper with different colors or textures in melamine resin adhesive, then drying it to a certain degree of solidification and hot pressing it. It is often used in interior construction and decoration of various furniture and cabinets. The thickness of the melamine board needs to be tested before use, and it can be put into use only after passing the test.

[0003] The existing plate thickness detection device includes a mounting plate, a shell, a lifting rod, a first sliding block, a first fixed rod, a roller and a first spring, etc. The mounting plate is provided with a shell on the upper side, and the lifting rods are slidably connected to the left and right sides of the lower outer side, and the lifting rods pass through the shell, and the front and rear sides of the lifting rods are slidably connected to the first sliding blocks, and the first fixed rods are provided between the front and rear first sliding blocks, and the rollers are rotatably connected to the first fixed rods, and the first springs are provided between the left and right insides of the first sliding blocks. When people need to detect the thickness of the melamine plate, the plate is placed between the two rollers, and people manually move the rollers to roll on the surface of the plate to detect the plate. The device has a simple structure, but the device requires people to manually detect the thickness of the plate, which is labor-intensive and has low work efficiency.

[0004] Therefore, a melamine plate thickness detection device is developed which can automatically detect the plate thickness, requires little labor and has high working efficiency. Summary of the invention

[0005] In order to overcome the shortcomings of plate thickness detection devices that require people to manually detect the thickness of the plate, which is labor-intensive and has low work efficiency, the purpose of the present invention is to provide a melamine plate thickness detection device that can automatically detect the thickness of the plate, requires less labor and has high work efficiency.

[0006] The technical solution of the present invention is: a melamine board thickness detection device, including a mounting plate, a shell, a lifting rod, a first sliding block, a first fixed rod, a roller, a first spring, an automatic lifting mechanism and a clamping mechanism, the shell is arranged on the upper side of the mounting plate, the lifting rods are slidably arranged inside the left and right sides of the lower part of the shell, the lifting rods pass through the shell, the first sliding blocks are slidably arranged on the front and rear sides of the lifting rod, the first fixed rod is arranged between the front and rear first sliding blocks, the roller is rotatably arranged on the first fixed rod, the first spring is arranged between the inner side of the first sliding block and the lifting rod, the automatic lifting mechanism is arranged on the left and right sides of the shell, and the clamping mechanism is arranged on the left and right sides of the front part of the shell.

[0007] Optionally, the automatic lifting mechanism includes a first fixed block, a motor, a screw and a connecting rod. The first fixed blocks are arranged on the upper parts of the left and right sides of the shell, the motors are arranged on the first fixed blocks, the motor output shafts are arranged with screws, the screws are rotatably connected to the lower parts of the left and right sides of the shell, the lower parts of the screws are threadedly arranged with connecting rods, and the front and rear sides of the connecting rods are connected to the outer sides of the lifting rods.

[0008] Optionally, the clamping mechanism includes a limiting shaft, a first rotating block, a second sliding block and a second spring. A limiting shaft is arranged on both left and right sides of the upper part of the shell. A first rotating block is rotatably arranged on the limiting shaft. A second sliding block is slidably arranged on the front side of the first rotating block. A second spring is arranged between the rear side of the second sliding block and the front side of the first rotating block.

[0009] Optionally, it also includes a pushing mechanism, which includes a second fixed rod, a second rotating block, a pushing block, a torsion spring, a driving rod and a wedge block, a wedge block is arranged on the outer side of the first sliding block on the rear right side, a second fixed rod is arranged on the right rear side of the shell, a second rotating block is rotatably arranged in the middle of the second fixed rod, a pushing block is arranged on the left front part of the second rotating block, a driving rod is arranged on the right side of the second rotating block, the wedge block is in contact with the driving rod, and a torsion spring is arranged between the outer side of the middle part of the second rotating block and the inner side of the middle part of the second fixed rod.

[0010] Optionally, it also includes an unlocking mechanism, which includes a second fixed block, a pushing block, a third spring, a third rotating block, a fixed shaft, a fourth rotating block and a moving block. A moving block is arranged on the outer side of the first sliding block at the rear, a second fixed block is arranged on the upper rear part of the left and right sides of the shell, a pushing block is slidably arranged on the upper middle side of the second fixed block, a third spring is arranged between the outer side of the pushing block and the outer side of the second fixed block, a third rotating block is arranged on the rear side of the first rotating block, a fixed shaft is arranged on the outer side of the second fixed block, a fourth rotating block is rotatably arranged on the fixed shaft, the upper side of the fourth rotating block is in contact with the outer side of the pushing block, and the lower side of the fourth rotating block is in contact with the moving block.

[0011] Optionally, it also includes a marking mechanism, which includes a mounting block, a material barrel, a discharge pipe, an extrusion block and a rubber elastic ball. A mounting block is provided at the lower front part of the lifting rod, a material barrel is provided on the mounting block, a discharge pipe is provided at the middle part of the outer side of the material barrel, a rubber elastic ball is provided at the middle part of the inner side of the material barrel, and an extrusion block is provided at the middle part of the outer side of the first sliding block.

[0012] Optionally, a buffer mechanism is also included, which includes a fourth fixed block, an extrusion rod, a fourth spring and an extrusion plate. Two fourth fixed blocks are arranged on the left and right sides of the shell. An extrusion rod is slidably arranged on the fourth fixed block. An extrusion plate is arranged between two adjacent front and rear extrusion rods. A fourth spring is arranged between the outer side of the extrusion plate and the inner side of the fourth fixed block.

[0013] Optionally, grooves are provided in the left and right sides of the housing.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention places the plate between two rollers, then rotates the first rotating block inward to limit the plate, and then turns on the motor to make the roller roll on the surface of the plate, thereby automatically detecting the thickness of the plate.

[0015] 2. The present invention slides the first sliding block outward so that the driving rod swings outward, thereby causing the left portion of the second rotating block to rotate forward, and then the pushing block moves forward to knock and push the plate; by sliding the first sliding block outward, the moving block moves outward, thereby causing the upper portion of the fourth rotating block to rotate inward, and the pushing block pushes the third rotating block inward, thereby making it easier for people to pick up the plate.

[0016] 3. The present invention slides the first sliding block outward so that the extrusion block squeezes the rubber elastic ball, thereby squeezing out the marking powder in the material barrel to mark the unqualified parts; the falling qualified plate pushes the extrusion plate outward so that the fourth spring is compressed, thereby providing buffer protection for the falling qualified plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0019] Figure 3 It is a schematic diagram of a first partial three-dimensional structure of the present invention.

[0020] Figure 4 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the automatic lifting mechanism of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the material pushing mechanism of the present invention.

[0024] Figure 8 This is an enlarged view of part A of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the unlocking mechanism of the present invention.

[0026] Fig.10This is an enlarged view of part B of the present invention.

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the marking mechanism of the present invention.

[0028] Fig.12 This is an enlarged view of part C of the present invention.

[0029] Fig.13 It is a schematic diagram of a first three-dimensional structure of the buffer mechanism of the present invention.

[0030] Fig.14 It is a schematic diagram of a second three-dimensional structure of the buffer mechanism of the present invention.

[0031] Markings in the accompanying drawings: 1_mounting plate, 11_housing, 12_lifting rod, 13_first sliding block, 14_first fixed rod, 15_drum, 16_first spring, 2_automatic lifting mechanism, 20_first fixed block, 21_motor, 22_screw, 23_connecting rod, 3_clamping mechanism, 30_limiting shaft, 31_first rotating block, 32_second sliding block, 33_second spring, 4_pushing mechanism, 40_second fixed rod, 41_second rotating block, 42_pushing block , 43_torsion spring, 44_driving rod, 45_wedge block, 5_unlocking mechanism, 50_second fixed block, 51_pushing block, 52_third spring, 53_third rotating block, 54_fixed shaft, 55_fourth rotating block, 56_moving block, 6_marking mechanism, 60_mounting block, 61_material barrel, 62_discharging pipe, 63_extrusion block, 64_rubber elastic ball, 7_buffer mechanism, 70_fourth fixed block, 71_extrusion rod, 72_fourth spring, 73_extrusion plate. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0033] Example 1

[0034] A device for detecting the thickness of a melamine sheet, such as Figure 1-6As shown, it includes a mounting plate 1, a shell 11, a lifting rod 12, a first sliding block 13, a first fixing rod 14, a roller 15, a first spring 16, an automatic lifting mechanism 2 and a clamping mechanism 3. The mounting plate 1 can be used to support the melamine sheet thickness detection device. The mounting plate 1 is provided with a shell 11 on the upper side. The shell 11 can improve people's safety during detection. The lifting rod 12 is slidably connected to the left and right sides of the lower part of the shell 11. The shell 11 is provided with grooves on the left and right sides. The grooves can guide the lifting rod 12. The lifting rod 12 passes through the shell 11. The front and rear sides of the lifting rod 12 are slidably connected to A first sliding block 13, a first fixed rod 14 is provided between the front and rear first sliding blocks 13 on the same side, a roller 15 is rotatably connected to the first fixed rod 14, the roller 15 can facilitate people to detect the thickness of the plate, a first spring 16 is provided between the inner side of the first sliding block 13 and the lifting rod 12, the first spring 16 can reset the first sliding block 13, automatic lifting mechanisms 2 are provided on the left and right sides of the shell 11, the automatic lifting mechanism 2 can make the lifting rod 12 automatically move up and down, and clamping mechanisms 3 are provided on the left and right sides of the front of the shell 11, and the clamping mechanism 3 can clamp the plate.

[0035] like Figure 1 , Figure 2 and Figure 5 As shown, the automatic lifting mechanism 2 includes a first fixed block 20, a motor 21, a screw 22 and a connecting rod 23. The first fixed blocks 20 are provided on the upper parts of the left and right sides of the outer shell 11, and the first fixed blocks 20 are provided with motors 21. The output shafts of the motors 21 are connected with screws 22, and the output shafts of the motors 21 can drive the screws 22 to rotate. The two screws 22 are rotatably connected to the lower parts of the left and right sides of the outer shell 11 respectively, and the lower parts of the screws 22 are threadedly connected with connecting rods 23, and the front and rear sides inside the connecting rods 23 are connected to the outer sides of the lifting rod 12.

[0036] like Figure 1 , Figure 2 and Figure 6 As shown, the clamping mechanism 3 includes a limiting shaft 30, a first rotating block 31, a second sliding block 32 and a second spring 33. Limiting shafts 30 are provided on both sides of the upper left and right sides of the shell 11. The limiting shafts 30 are rotatably connected to the first rotating blocks 31. The limiting shafts 30 can limit the first rotating block 31. The front side of the first rotating block 31 is slidably connected to the second sliding block 32. A second spring 33 is provided between the rear side of the second sliding block 32 and the front side of the first rotating block 31. The second spring 33 can move and reset the second sliding block 32.

[0037] When people need to detect the thickness of the melamine board, the device can be used to achieve it. First, the board is placed between the two rollers 15, and then the first rotating block 31 is slightly rotated inwardly. The first rotating block 31 rotates inwardly to drive the second sliding block 32 and the second spring 33 to rotate inwardly slightly, so that the rear part of the second sliding block 32 is located at the front position of the board. Since the board needs to be limited, the board will push the second sliding block 32 outward. At this time, the second spring 33 is compressed, so that the second sliding block 32 can limit the front position of the board. After the board is placed, the motor 21 is turned on, and the output shaft of the motor 21 rotates to drive the screw rod 22 to rotate. The connecting rod 23 moves upward under the action of the thread of the screw rod 22. The upward movement of the connecting rod 23 drives the lifting rod 12 to slide upward inside the shell 11, and then the lifting rod 12 moves upward to drive the first sliding block 13 and the first fixed rod 14 to move upward, and then drives the roller 15 to move upward. The roller 15 rolls on the surface of the board, so that the thickness of the board can be automatically detected. When it is detected that the board is unqualified, When the roller 15 is moved outward, the roller 15 moves outward and drives the first fixed rod 14 to move outward. The first fixed rod 14 moves outward and drives the first sliding block 13 to slide outward on the lifting rod 12. At this time, the first spring 16 is compressed, which can remind people that the plate is unqualified. When the roller 15 is separated from the unqualified part of the plate, the first sliding block 13 slides inward and resets under the action of the first spring 16, so that the roller 15 and the first fixed block 20 move inward and reset. After people have detected the plate, they rotate the output shaft of the motor 21 in the opposite direction, so that the screw rod 22 rotates in the opposite direction, and then the connecting rod 23 and the lifting rod 12 move downward and reset, thereby driving the first sliding block 13, the first fixed rod 14 and the roller 15 to move downward and reset, then turn off the motor 21, and then slightly rotate the first rotating block 31 outward to reset, so that the second sliding block 32 and the second spring 33 rotate slightly outward to reset, and then people take out the plate. Repeat the above operation to realize automatic detection of plate thickness, reduce people's labor and increase work efficiency.

[0038] Example 2

[0039] On the basis of Example 1, Figure 2 , Figure 7 and Figure 8As shown, it also includes a pushing mechanism 4 that can push out unqualified plates. The pushing mechanism 4 includes a second fixed rod 40, a second rotating block 41, a pushing block 42, a torsion spring 43, a driving rod 44 and a wedge block 45. The outer side of the first sliding block 13 on the rear right side is connected with a wedge block 45. The right rear side of the outer shell 11 is provided with a second fixed rod 40, the middle part of the second fixed rod 40 is rotatably connected with the second rotating block 41, and the left front part of the second rotating block 41 is provided with a pushing block 42. The pushing block 42 can push out unqualified plates. A driving rod 44 is provided on the right side of the second rotating block 41, and the driving rod 44 can drive the second rotating block 41 to rotate. The wedge block 45 contacts the driving rod 44, and a torsion spring 43 is connected between the outer side of the middle part of the second rotating block 41 and the inner side of the middle part of the second fixed rod 40. The torsion spring 43 can rotate and reset the second rotating block 41.

[0040] When people detect unqualified plates, they need to push out the detected plates. When the roller 15 detects unqualified plates, the first sliding block 13 will slide outward, and the first sliding block 13 on the right side of the rear part will slide outward to drive the wedge-shaped block 45 to slide outward. The sliding of the wedge-shaped block 45 outward will cause the driving rod 44 to swing outward, and the driving rod 44 swings outward to make the left part of the second rotating block 41 rotate forward. At this time, the torsion spring 43 is twisted, and the left part of the second rotating block 41 rotates forward to drive the pushing block 42 to move forward, so that the plate can be knocked out. After the plate is knocked out, the second rotating block 41 rotates backward and resets under the action of the torsion spring 43, and the second rotating block 41 rotates backward to drive the pushing block 42 to move backward and reset, and the second rotating block 41 rotates backward to drive the driving rod 44 to swing inward and reset, and the first sliding block 13 slides inward and resets under the action of the first spring 16, thereby driving the wedge-shaped block 45 to move inward and reset, and repeating the above operation can push out the detected unqualified plates.

[0041] like Figure 2 , Fig. 9 and Fig.10As shown, an unlocking mechanism 5 capable of releasing the clamped plate is also included, the unlocking mechanism 5 includes a second fixed block 50, a pushing block 51, a third spring 52, a third rotating block 53, a fixed shaft 54, a fourth rotating block 55 and a moving block 56, a moving block 56 is provided on the outer side of the rear first sliding block 13, a second fixed block 50 is provided on the upper rear part of the left and right sides of the housing 11, a pushing block 51 is slidably connected to the upper middle side of the second fixed block 50, and a space between the outer side of the pushing block 51 and the outer side of the second fixed block 50 A third spring 52 is provided, and the third spring 52 can move and reset the pushing block 51. A third rotating block 53 is provided on the rear side of the first rotating block 31, and the pushing block 51 can push the third rotating block 53. A fixed shaft 54 ​​is provided on the outer side of the second fixed block 50, and a fourth rotating block 55 is rotatably connected to the fixed shaft 54. The upper side of the fourth rotating block 55 is in contact with the outer side of the pushing block 51, and the lower side of the fourth rotating block 55 is in contact with the moving block 56. The moving block 56 can give the fourth rotating block 55 rotational power.

[0042] When people need to take out the unqualified plates, when the roller 15 detects the unqualified plates, it will push the first sliding block 13 outward. The first sliding block 13 slides outward to drive the moving block 56 to move outward. The moving block 56 moves outward to make the lower part of the fourth rotating block 55 swing outward, and then the upper part of the fourth rotating block 55 rotates inward. The inward rotation of the fourth rotating block 55 will knock the pushing block 51, so that the pushing block 51 slides inward. At this time, the third spring 52 is compressed, and the pushing block 51 slides inward to push the third rotating block 53 inward. The block 53 rotates inwardly, which causes the first rotating block 31 to rotate outwardly, thereby making it easier for people to take out the unqualified plates. After the plates are taken out, the pushing block 51 slides outwardly and resets under the action of the third spring 52, and the lower part of the fourth rotating block 55 swings inwardly and resets under the action of its own gravity, thereby causing the upper part of the fourth rotating block 55 to rotate outward and reset. After the unqualified plates are taken out, the roller 15 moves inwardly and resets, driving the first sliding block 13 to slide inwardly, and then drives the moving block 56 to move inward and reset. Repeating the above operations can make it easier for people to take out the unqualified plates.

[0043] like Figure 1 , Figure 2 , Fig.11 and Fig.12As shown, it also includes a marking mechanism 6 that can mark the unqualified part of the plate. The marking mechanism 6 includes a mounting block 60, a material barrel 61, a discharge pipe 62, an extrusion block 63 and a rubber elastic ball 64. The lower front part of the lifting rod 12 is provided with a mounting block 60, and the mounting block 60 is provided with a material barrel 61. The material barrel 61 can be used to place marking powder. The middle part of the outer side of the material barrel 61 is provided with a discharge pipe 62. The discharge pipe 62 can spray the marking powder to mark the unqualified plate. The middle part of the inner side of the material barrel 61 is connected to a rubber elastic ball 64. The rubber elastic ball 64 can squeeze out the marking powder in the material barrel 61. The middle part of the outer side of the first sliding block 13 is provided with an extrusion block 63, and the extrusion block 63 can extrude the rubber elastic ball 64.

[0044] When people need to mark the unqualified parts of the plate, first, place the marking powder in the material barrel 61, and then turn on the motor 21 to make the lifting rod 12 slide upward. The lifting rod 12 slides upward to drive the mounting block 60 to move upward, and then drives the material barrel 61, the discharge pipe 62, the extrusion block 63 and the rubber elastic ball 64 to move upward. When an unqualified plate is detected, the roller 15 moves outward to drive the first sliding block 13 to slide outward, and then the extrusion block 63 moves outward. The extrusion block 63 moves outward to squeeze the rubber elastic ball 64, and the rubber elastic ball 64 is deformed, so that the marking powder in the material barrel 61 can be squeezed out, and the squeezed marking powder passes through the discharge pipe 62 and is sprayed out from the discharge pipe 62 to mark the unqualified parts. After marking, the motor 21 is turned off, and then people take out the plate, so that the first sliding block 13 moves inward and resets. The first sliding block 13 moves inward and resets, driving the extrusion block 63 to move inward and reset. When the extrusion block 63 and the rubber elastic ball 64 are separated, the rubber elastic ball 64 expands and resets under its own elastic action. Repeating the above operation can mark the unqualified parts of the plate inspection, which is convenient for people to identify.

[0045] like Figure 1 , Fig.13 and Fig.14 As shown, it also includes a buffer mechanism 7 that can buffer falling plates. The buffer mechanism 7 includes a fourth fixed block 70, an extrusion rod 71, a fourth spring 72 and an extrusion plate 73. Two fourth fixed blocks 70 are provided on the left and right sides of the shell 11. The fourth fixed blocks 70 are slidably connected with extrusion rods 71. An extrusion plate 73 is provided between the front and rear adjacent extrusion rods 71. The extrusion plate 73 can buffer the plates. A fourth spring 72 is provided between the outer side of the extrusion plate 73 and the inner side of the fourth fixed block 70. The fourth spring 72 can move and reset the extrusion plate 73.

[0046] When the plate tested by people is qualified, the qualified plate falls downward without a support point, and the plate will fall between the two extrusion plates 73 during the process of falling downward. The falling plate will push the extrusion plate 73 outward, and the extrusion plate 73 moves outward to drive the extrusion rod 71 to slide outward on the fourth fixed block 70. At this time, the fourth spring 72 is compressed. When people take out the plate, the extrusion plate 73 moves inward and resets under the action of the fourth spring 72, thereby driving the extrusion rod 71 to slide inward and reset. Repeating the above operation can play a buffering and protective role on the fallen plate and reduce the loss rate of the plate, which can make it easier for people to distinguish whether the plate is qualified.

[0047] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A melamine sheet thickness detection device, comprising a mounting plate (1), a housing (11), a lifting rod (12), a first sliding block (13), a first fixed rod (14), a roller (15) and a first spring (16), wherein the housing (11) is disposed on the upper side of the mounting plate (1), the lifting rods (12) are slidably disposed inside the left and right sides of the lower part of the housing (11), the lifting rods (12) pass through the housing (11), the first sliding blocks (13) are slidably disposed on the front and rear sides of the lifting rod (12), the first fixed rod (14) is disposed between the front and rear first sliding blocks (13), the roller (15) is rotatably disposed on the first fixed rod (14), and the first spring (16) is disposed between the inner side of the first sliding block (13) and the lifting rod (12), Its characteristics are: It also includes an automatic lifting mechanism (2) and a clamping mechanism (3), wherein the automatic lifting mechanism (2) is disposed on both left and right sides of the housing (11), and the clamping mechanism (3) is disposed on both left and right sides of the front of the housing (11); The automatic lifting mechanism (2) comprises a first fixing block (20), a motor (21), a screw rod (22) and a connecting rod (23). The first fixing blocks (20) are arranged on the upper parts of the left and right sides of the housing (11). The motor (21) is arranged on the first fixing blocks (20). The output shaft of the motor (21) is arranged on the screw rod (22). The screw rod (22) is rotatably connected to the lower parts of the left and right sides of the housing (11). The lower part of the screw rod (22) is threadedly provided with a connecting rod (23). The front and rear sides of the connecting rod (23) are connected to the outer side of the lifting rod (12). The clamping mechanism (3) comprises a limit shaft (30), a first rotating block (31), a second sliding block (32) and a second spring (33). The limit shaft (30) is arranged on both left and right sides of the upper part of the housing (11). The first rotating block (31) is rotatably arranged on the limit shaft (30). The second sliding block (32) is slidably arranged on the front side of the first rotating block (31). The second spring (33) is arranged between the rear side of the second sliding block (32) and the front side of the first rotating block (31).

2. A melamine sheet thickness detection device according to claim 1, Its characteristics are: The invention also comprises a pushing mechanism (4), which comprises a second fixed rod (40), a second rotating block (41), a pushing block (42), a torsion spring (43), a driving rod (44) and a wedge block (45), wherein a wedge block (45) is arranged outside the first sliding block (13) on the right side of the rear portion, a second fixed rod (40) is arranged on the right rear side of the housing (11), a second rotating block (41) is rotatably arranged in the middle of the second fixed rod (40), a pushing block (42) is arranged at the left front portion of the second rotating block (41), a driving rod (44) is arranged on the right side of the second rotating block (41), the wedge block (45) contacts the driving rod (44), and a torsion spring (43) is arranged between the outer side of the middle portion of the second rotating block (41) and the inner side of the middle portion of the second fixed rod (40).

3. A melamine sheet thickness detection device according to claim 2, Its characteristics are: The invention also comprises an unlocking mechanism (5), which comprises a second fixed block (50), a pushing block (51), a third spring (52), a third rotating block (53), a fixed shaft (54), a fourth rotating block (55) and a moving block (56). The moving block (56) is arranged on the outer side of the first sliding block (13) at the rear, the second fixed block (50) is arranged on the upper rear part of the left and right sides of the housing (11), the pushing block (51) is slidably arranged on the upper middle side of the second fixed block (50), the third spring (52) is arranged between the outer side of the pushing block (51) and the outer side of the second fixed block (50), the third rotating block (53) is arranged on the rear side of the first rotating block (31), the fixed shaft (54) is arranged on the outer side of the second fixed block (50), the fourth rotating block (55) is rotatably arranged on the fixed shaft (54), the upper side of the fourth rotating block (55) is in contact with the outer side of the pushing block (51), and the lower side of the fourth rotating block (55) is in contact with the moving block (56).

4. A melamine sheet thickness detection device according to claim 3, Its characteristics are: The device also comprises a marking mechanism (6), the marking mechanism (6) comprising a mounting block (60), a material barrel (61), a discharge pipe (62), an extrusion block (63) and a rubber elastic ball (64); the mounting block (60) is arranged at the lower front part of the lifting rod (12); the material barrel (61) is arranged on the mounting block (60); the discharge pipe (62) is arranged at the middle part of the outer side of the material barrel (61); the rubber elastic ball (64) is arranged at the middle part of the inner side of the material barrel (61); and the extrusion block (63) is arranged at the middle part of the outer side of the first sliding block (13).

5. A melamine sheet thickness detection device according to claim 4, Its characteristics are: The invention also comprises a buffer mechanism (7), the buffer mechanism (7) comprising a fourth fixed block (70), an extrusion rod (71), a fourth spring (72) and an extrusion plate (73), two fourth fixed blocks (70) are arranged on the left and right sides of the housing (11), the fourth fixed blocks (70) are slidably provided with an extrusion rod (71), an extrusion plate (73) is arranged between two adjacent extrusion rods (71) in front and behind, and a fourth spring (72) is arranged between the outer side of the extrusion plate (73) and the inner side of the fourth fixed block (70).

6. A melamine sheet thickness detection device according to claim 1, Its characteristics are: Grooves are provided on the left and right sides of the housing (11).

Images