Film detection device

Abstract

The invention discloses a thin film detection device, and belongs to the field of thin film production, the thin film detection device comprises a base, a placing table, a gridding bin, a pasting mechanism and a gridding mechanism, the base comprises a bottom plate, the top of the bottom plate is provided with a first sliding groove, the placing table is slidably arranged in the first sliding groove, the gridding bin and the pasting mechanism are arranged above the bottom plate, and the gridding bin and the pasting mechanism are arranged in the first sliding groove. The gridding bin is arranged on the side of the pasting mechanism, the gridding mechanism is arranged on the top of the gridding bin in a sliding mode, a first electric screw rod is rotationally arranged in the first sliding groove, cleaning openings are formed in the two ends of the first sliding groove in a penetrating mode, and the width of the cleaning openings is the same as that of the first sliding groove. The device can automatically carry out operations such as cross-grid detection, standard grid drawing and pasting on the plastic film, and has higher efficiency while the detection precision is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of film production, and in particular relates to a film detection device. Background Art

[0002] Film usually refers to plastic film. As an important packaging and protective material, plastic film is widely used in food, medicine, electronic products, building materials and other fields. Its barrier properties, mechanical strength, transparency and other properties directly affect the shelf life, safety and market competitiveness of the product. Therefore, it is particularly important to accurately detect the quality of plastic film. In the detection of plastic film, one of the detection contents is the hundred-grid detection. The hundred-grid detection is a test for the adhesion of the coating of plastic film. In the detection, it is necessary to scratch equal-sized squares on the surface of the plastic film, and then use special tape to repeatedly stick on the surface of the squares, and judge by observing the peeling of the coating. Nowadays, the various steps of the hundred-grid detection are usually performed manually by the operator, which is cumbersome. At the same time, manual scratching and sticking are usually not standardized, which will affect the detection accuracy and are inefficient. Therefore, a film detection device that can improve the detection accuracy and efficiency is needed. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a film detection device, which can automatically perform hundreds of grid detection on plastic films, standardize grid marking, pasting and other operations, and has higher detection accuracy and higher efficiency.

[0004] The technical solution adopted by the present invention is as follows: A film detection device provided by the present invention includes a base, a placement table, a grid chamber, a pasting mechanism and a grid chamber mechanism, the base includes a bottom plate, a slide groove 1 is opened on the top of the bottom plate, the placement table is slidably arranged in the slide groove 1, the grid chamber and the pasting mechanism are respectively arranged above the bottom plate, the grid chamber is arranged on the side of the pasting mechanism, the grid chamber mechanism is slidably arranged on the top of the grid chamber, an electric screw 1 is rotatably arranged in the slide groove 1, cleaning openings are opened at both ends of the slide groove 1, the cleaning openings are arranged through, and the width of the cleaning opening is the same as the width of the slide groove 1.

[0005] Furthermore, the placing table includes a base, a slider is provided at the bottom of the base, the slider is slidably arranged in a slide groove, a screw hole is penetrated by the slider, the screw hole is threadedly engaged with an electric screw, cleaning plates are symmetrically provided on both sides of the slider, the cleaning plates are fitted with a bottom wall of the slide groove, the cleaning plates are fitted with the cleaning openings, an adjusting bin is provided in the base, an adjusting opening is provided on the side wall of the base, the adjusting opening is communicated with the adjusting bin, an outer sleeve is provided on the top of the base, the outer sleeve is communicated with the adjusting bin, a threaded sleeve is slidably arranged in the outer sleeve, the bottom of the threaded sleeve is opened, a motor is provided on the top of the threaded sleeve, a rotating plate is provided on the top of the motor, and the output end of the motor is transmission-connected with the rotating plate.

[0006] Furthermore, a passive gear is rotatably provided in the adjusting chamber, a driving gear is rotatably provided in the adjusting opening, the driving gear is gear-engaged with the passive gear, the radius of the driving gear is smaller than the radius of the passive gear, an adjusting screw is provided on the top of the passive gear, the adjusting screw is rotatably provided in the threaded sleeve, the adjusting screw is threadably engaged with the threaded sleeve, and the driving gear is rotated, and the driving gear drives the passive gear to drive the adjusting screw to rotate, thereby controlling the threaded sleeve to move up and down.

[0007] Furthermore, a convex platform is provided on the top of the rotating plate, a fixed roller is rotatably provided in the concave part of the convex platform, the fixed roller is a motorized roller, a rubber layer is provided on the side wall of the fixed roller, and the fixed roller fits with the concave part of the convex platform.

[0008] Furthermore, the grid bin includes a bin body and a second slide groove, the bin body is arranged on the top of the bottom plate, the second slide groove is arranged on the top of the bin body, the bin body is communicated with the second slide groove, an electric screw rod is rotatably arranged in the second slide groove, and positioning grooves are symmetrically opened on the side walls of the second slide groove, and the positioning groove includes a sinking section, and the sinking section is arranged in the middle of the positioning groove.

[0009] Furthermore, the grid mechanism includes a slider 2, a screw hole 2 is penetrated through the slider 2, the slider 2 is slidably clamped in a slide groove 2, the screw hole 2 is threadedly engaged with an electric screw rod 2, a slide groove 3 is provided at the bottom of the slider 2, a slider 3 is slidably clamped in the slide groove 3, a spring is provided between the slider 3 and the top wall of the slide groove 3, and a toothed knife is provided at the bottom of the slider 3.

[0010] Furthermore, the three side walls of the slide groove are penetrated and symmetrically provided with through grooves, the through grooves are longitudinally arranged, and the three side walls of the slider are symmetrically provided with limit blocks, the limit blocks pass through the through grooves and are arranged in the positioning grooves. When the electric screw rod 2 rotates, under the action of the screw hole 2, the gridding mechanism slides in the slide groove 2, and when the gridding mechanism passes through the sinking section, the sinking section limits the limit blocks, so that the slider 3 moves downward.

[0011] Furthermore, the pasting mechanism includes a side panel, which is symmetrically arranged on the top of the bottom panel, and a storage roller, a collecting roller and a rotating roller are rotatably arranged in the side panel, the storage roller is arranged on the side of the collecting roller close to the grid bin, the rotating roller is arranged between the collecting roller and the storage roller, the storage roller and the side panel are interference fit, the collecting roller and the rotating roller are electric rollers, and a tape is also arranged in the pasting mechanism, the tape is wound around the storage roller, and the end of the tape is wound around the collecting roller, the side wall of the rotating roller is provided with an elastic telescopic rod, and the end of the elastic telescopic rod is rotatably provided with a pasting roller.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows: a thin film detection device provided by the present scheme places a plastic film sample on the top of the convex table, extends the two ends of the sample between the fixed roller and the concave part of the convex table respectively, controls the fixed roller to stretch the two ends of the sample to both sides respectively, so that the sample fits the top wall of the convex table, and then stops the fixed roller, so that the sample can be fixed on the convex table, and at the same time, the active gear can be adjusted according to the specifications of the test sample, and the active gear drives the passive gear to rotate, so that the adjusting screw adjusts the height of the threaded sleeve, thereby adjusting the distance from the sample on the convex table to the toothed knife, and then adjusting the depth of the scratches made by the toothed knife on the surface of the sample, which is suitable for a variety of usage scenarios and can be moved from the placement table to the The sample is moved to the bottom of the sinking section, and the gridding mechanism cooperates with the motor to adjust the angle of the sample, and can automatically draw several equal-sized grids on the surface of the sample, and move the placement table to under the rotating roller. The pasting mechanism can automatically cyclically paste the sample, and during the detection process, the cleaning plates on both sides of the slider are cyclically extended from the cleaning openings on both sides of the slide slot, and the sample debris scratched by the toothed knife is pushed out from the cleaning opening to avoid blockage. Compared with manual gridding and pasting, this method saves time and labor, is more efficient, and compared with manual operation, the gridding and pasting of the mechanized operation are more uniform, the detection accuracy is higher, and it can more accurately reflect the adhesion of the plastic film coating of the plastic film. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a thin film detection device provided by the present invention; Figure 2 A schematic diagram of the structure of the placement table provided by the present invention; Figure 3 A side view of the placement table provided by the present invention; Figure 4 for Figure 3 A cross-sectional view of the AA portion; Figure 5 for Figure 3 A cross-sectional view of the BB portion; Figure 6 A cross-sectional view of a grid bin provided by the present invention; Figure 7A schematic diagram of the structure of the grid-crossing mechanism provided by the present invention; Figure 8 A cross-sectional view of the grid-crossing mechanism provided by the present invention; Fig. 9 The figure is a cross-sectional view of the pasting mechanism provided by the present invention.

[0014] Among them, 1. base, 2. placing table, 3. grid compartment, 4. pasting mechanism, 5. grid mechanism, 101. bottom plate, 102. slide groove one, 103. electric screw one, 104. cleaning opening, 201. base, 202. slider one, 203. screw hole one, 204. cleaning plate, 205. adjustment compartment, 206. adjustment opening, 207. passive gear, 208. active gear, 209. outer sleeve, 210. threaded sleeve, 211. adjustment screw, 212. motor, 213. rotating plate, 214. convex table, 215. fixed roller, 301. warehouse body, 302. slide groove 2, 303. electric screw rod 2, 304. positioning groove, 305. sinking section, 401. side plate, 402. storage roller, 403. collecting roller, 404. rotating roller, 405. adhesive tape, 406. elastic telescopic rod, 407. laminating roller, 501. slider 2, 502. screw hole 2, 503. slide groove 3, 504. slider 3, 505. spring, 506. toothed knife, 507. through groove, 508. limit block.

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0018] like Figure 1-Figure 9As shown, a film detection device provided by the present invention includes a base 1, a placement table 2, a grid chamber 3, a pasting mechanism 4 and a grid mechanism 5, the base 1 includes a bottom plate 101, a slide groove 102 is opened on the top of the bottom plate 101, the placement table 2 is slidably arranged in the slide groove 102, the grid chamber 3 and the pasting mechanism 4 are respectively arranged above the bottom plate 101, the grid chamber 3 is arranged on the side of the pasting mechanism 4, the grid mechanism 5 is slidably arranged on the top of the grid chamber 3, an electric screw 103 is rotatably arranged in the slide groove 102, cleaning openings 104 are opened at both ends of the slide groove 102, the cleaning opening 104 is set through, and the width of the cleaning opening 104 is the same as the width of the slide groove 102.

[0019] Furthermore, the placing table 2 includes a base 201, a slider 202 is provided at the bottom of the base 201, the slider 202 is slidably arranged in the slide groove 102, a screw hole 203 is provided through the slider 202, the screw hole 203 is threadedly engaged with the electric screw 103, cleaning plates 204 are symmetrically provided on both sides of the slider 202, the cleaning plates 204 are fitted to the bottom wall of the slide groove 102, the cleaning plates 204 are fitted to the cleaning opening 104, and an adjustment chamber is provided in the base 201 205, an adjustment opening 206 is provided on the side wall of the base 201, and the adjustment opening 206 is communicated with the adjustment chamber 205. An outer sleeve 209 is provided on the top of the base 201, and the outer sleeve 209 is communicated with the adjustment chamber 205. A threaded sleeve 210 is provided on the sliding card inside the outer sleeve 209, and the bottom of the threaded sleeve 210 is opened. A motor 212 is provided on the top of the threaded sleeve 210, and a rotating plate 213 is provided on the top of the motor 212. The output end of the motor 212 is transmission-connected to the rotating plate 213.

[0020] Furthermore, a passive gear 207 is rotatably provided in the adjusting chamber 205, and a driving gear 208 is rotatably provided in the adjusting opening 206. The driving gear 208 is gear-engaged with the passive gear 207. The radius of the driving gear 208 is smaller than the radius of the passive gear 207. An adjusting screw 211 is provided on the top of the passive gear 207. The adjusting screw 211 is rotatably provided in the threaded sleeve 210. The adjusting screw 211 is threadably engaged with the threaded sleeve 210, and the driving gear 208 is rotated. The driving gear 208 drives the passive gear 207 to drive the adjusting screw 211 to rotate, thereby controlling the threaded sleeve 210 to move up and down.

[0021] Furthermore, a convex platform 214 is provided on the top of the rotating plate 213 , and a fixed roller 215 is rotatably provided in the concave part of the convex platform 214 . The fixed roller 215 is a motorized roller, and a rubber layer is provided on the side wall of the fixed roller 215 . The fixed roller 215 fits with the concave part of the convex platform 214 .

[0022] Furthermore, the grid bin 3 includes a bin body 301 and a second slide groove 302. The bin body 301 is arranged on the top of the bottom plate 101, and the second slide groove 302 is arranged on the top of the bin body 301. The bin body 301 is communicated with the second slide groove 302. An electric screw 303 is rotatably arranged in the second slide groove 302. The side wall of the second slide groove 302 is symmetrically provided with a positioning groove 304. The positioning groove 304 includes a sinking section 305, and the sinking section 305 is arranged in the middle of the positioning groove 304.

[0023] Furthermore, the grid mechanism 5 includes a slider 501, a screw hole 502 is provided through the slider 501, the slider 501 is slidably arranged in the slide groove 302, the screw hole 502 is threadedly engaged with the electric screw 303, a slide groove 503 is provided at the bottom of the slider 501, a slider 504 is slidably arranged in the slide groove 503, a spring 505 is provided between the slider 504 and the top wall of the slide groove 503, and a toothed knife 506 is provided at the bottom of the slider 504.

[0024] Furthermore, the side wall of the slide groove three 503 is penetrated and symmetrically provided with a through groove 507, the through groove 507 is longitudinally arranged, and the side wall of the slider three 504 is symmetrically provided with a limit block 508, the limit block 508 passes through the through groove 507 and is arranged in the positioning groove 304, when the electric screw rod two 303 rotates, under the action of the screw hole two 502, the grid mechanism 5 slides in the slide groove two 302, when the grid mechanism 5 passes through the sinking section 305, the sinking section 305 limits the limit block 508, so that the slider three 504 moves downward.

[0025] Furthermore, the pasting mechanism 4 includes a side plate 401, which is symmetrically arranged on the top of the bottom plate 101, and a storage roller 402, a collecting roller 403 and a rotating roller 404 are rotatably arranged in the side plate 401, the storage roller 402 is arranged on the side of the collecting roller 403 close to the grid bin 3, and the rotating roller 404 is arranged between the collecting roller 403 and the storage roller 402, and the storage roller 402 and the side plate 401 are interference fit, and the collecting roller 403 and the rotating roller 404 are electric rollers. A tape 405 is also arranged in the pasting mechanism 4, and the tape 405 is wound around the storage roller 402, and the end of the tape 405 is wound around the collecting roller 403, and the side wall of the rotating roller 404 is provided with an elastic telescopic rod 406, and the end of the elastic telescopic rod 406 is rotatably provided with a bonding roller 407.

[0026] When in use, firstly, the electric screw 103 is controlled to move the placing table 2 to one end of the slide slot 102 close to the grid bin 3, then, the plastic film sample is placed on the top of the convex table 214, and the two ends of the sample are respectively extended between the fixed roller 215 and the concave part of the convex table 214, and the fixed roller 215 is controlled to stretch the two ends of the sample to both sides, so that the sample fits the top wall of the convex table 214, and then the fixed roller 215 is stopped to fix the sample on the convex table 214, and then according to the specifications of the test sample, the active gear 208 is adjusted, and the active gear 208 drives the passive gear 207 to rotate, so that the adjusting screw 211 adjusts the height of the threaded sleeve 210, so that The distance between the sample on the convex table 214 and the toothed knife 506 is adjusted to adjust the depth of the scratch to adapt to plastic films of different specifications. Then, the electric screw 103 is controlled to move the placement table 2 to the position of the sinking section 305. Then, the electric screw 2 303 controls the gridding mechanism 5 to move. When the gridding mechanism 5 moves the sinking section 305, the sinking section 305 controls the limit block 508 to sink the slider 3 504. The toothed knife 506 scratches the surface of the sample and leaves a scratch. Then, the motor 212 is started to rotate the rotating plate 213 90 degrees. Then, the electric screw 2 303 controls the gridding mechanism 5 to move in the opposite direction, leaving a secondary scratch on the surface of the sample. The two scratches form a Several squares of the same size are formed, and then the motor 212 is controlled to reverse and reset the rotating plate 213, and then the electric screw 103 is controlled to move the placing table 2 to the bottom of the rotating roller 404. In the initial state, the laminating roller 407 does not contact the tape 405, and the part of the tape 405 between the collecting roller 403 and the storage roller 402 is horizontal. Then the rotating roller 404 rotates in a clockwise direction as seen from the front, and the laminating roller 407 pastes the tape 405 on the sample surface. After the pasting is completed, the collecting roller 403 rotates to rewind the tape 405 and peel the tape 405 off the sample surface. This reciprocating process is repeated until the number of pastings reaches the test standard, and the test is completed. ; (If the rotating roller 404 rotates counterclockwise when viewed from the front, the side of the sample close to the storage roller 402 will be first pasted with the tape 405, and the tape 405 required for pasting the remaining part cannot be drawn out from the collecting roller 403. The collecting roller 403 needs to draw out the reserved tape 405 in advance and rotate in the opposite direction during the pasting process to output the reserved tape 405 to the sample surface. The collecting roller 403 needs to have forward and reverse functions, and an additional program needs to be set to cooperate with the rotating roller 404, which is more expensive. The clockwise rotation direction can gradually draw out the tape 405 from the storage roller 402 during the pasting process, and the operating principle is simpler and the cost is lower);After the test is completed, the electric screw rod 103 moves the placement table 2 to the end of the slide 102 away from the grid bin 3. The operator observes the coating shedding through a magnifying glass and other equipment to judge the sample quality. At the same time, during the reciprocating motion of the electric screw rod 103, the cleaning plates 204 on both sides of the slider 202 cyclically extend from the cleaning openings 104 on both sides of the slide 102 to push the sample debris scratched by the toothed knife 506 out of the cleaning openings 104 to avoid blockage. ;

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A thin film detection device, characterized in that: The invention comprises a base (1), a placing table (2), a grid compartment (3), a pasting mechanism (4) and a grid compartment mechanism (5), wherein the base (1) comprises a bottom plate (101), a slide groove (102) is provided on the top of the bottom plate (101), the placing table (2) is slidably arranged in the slide groove (102), the grid compartment (3) and the pasting mechanism (4) are respectively arranged above the bottom plate (101), the grid compartment (3) is arranged on the side of the pasting mechanism (4), the grid compartment mechanism (5) is slidably arranged on the top of the grid compartment (3), an electric screw (103) is rotatably arranged in the slide groove (102), cleaning openings (104) are provided at both ends of the slide groove (102), the cleaning openings (104) are arranged through, and the width of the cleaning opening (104) is the same as the width of the slide groove (102).

2. A thin film detection device according to claim 1, characterized in that: The grid bin (3) comprises a bin body (301) and a second slide groove (302), wherein the bin body (301) is arranged on the top of the bottom plate (101), and the second slide groove (302) is arranged on the top of the bin body (301), the bin body (301) and the second slide groove (302) are communicated with each other, and a second electric screw rod (303) is rotatably arranged in the second slide groove (302), and a positioning groove (304) is symmetrically opened on the side wall of the second slide groove (302), and the positioning groove (304) comprises a sinking section (305), and the sinking section (305) is arranged in the middle of the positioning groove (304).

3. A thin film detection device according to claim 2, characterized in that: The grid-marking mechanism (5) comprises a second slider (501), the second slider (501) is provided with a second screw hole (502) running through it, the second slider (501) is slidably clamped in the second slide groove (302), the second screw hole (502) is threadedly engaged with the second electric screw rod (303), the bottom of the second slider (501) is provided with a third slide groove (503), the sliding clamp in the third slide groove (503) is provided with a third slider (504), a spring (505) is provided between the third slider (504) and the top wall of the third slide groove (503), and the bottom of the third slider (504) is provided with a toothed knife (506).

4. A thin film detection device according to claim 3, characterized in that: The placing table (2) comprises a base (201), a slider (202) is provided at the bottom of the base (201), the slider (202) is slidably mounted in a slide groove (102), a screw hole (203) is provided through the slider (202), the screw hole (203) is threadedly engaged with an electric screw rod (103), cleaning plates (204) are symmetrically provided on both sides of the slider (202), the cleaning plates (204) are fitted to the bottom wall of the slide groove (102), the cleaning plates (204) are fitted to the cleaning opening (104), and an adjustment chamber (203) is provided in the base (201). 5), the side wall of the base (201) is provided with an adjustment opening (206), the adjustment opening (206) is communicated with the adjustment chamber (205), the top of the base (201) is provided with an outer sleeve (209), the outer sleeve (209) is communicated with the adjustment chamber (205), a threaded sleeve (210) is provided in a sliding manner inside the outer sleeve (209), the bottom of the threaded sleeve (210) is open, a motor (212) is provided on the top of the threaded sleeve (210), a rotating plate (213) is provided on the top of the motor (212), and the output end of the motor (212) is drivingly connected to the rotating plate (213).

5. A thin film detection device according to claim 4, characterized in that: A passive gear (207) is rotatably disposed in the regulating chamber (205), a driving gear (208) is rotatably disposed in the regulating opening (206), the driving gear (208) is gear-engaged with the passive gear (207), the radius of the driving gear (208) is smaller than the radius of the passive gear (207), an adjusting screw (211) is disposed on the top of the passive gear (207), the adjusting screw (211) is rotatably disposed in the threaded sleeve (210), and the adjusting screw (211) is threadedly engaged with the threaded sleeve (210).

6. A thin film detection device according to claim 5, characterized in that: A convex platform (214) is provided on the top of the rotating plate (213); a fixed roller (215) is rotatably provided in the concave portion of the convex platform (214); the fixed roller (215) is a motorized roller; a rubber layer is provided on the side wall of the fixed roller (215); the fixed roller (215) is fitted with the concave portion of the convex platform (214).

7. A thin film detection device according to claim 6, characterized in that: The side wall of the slide groove three (503) is penetrated and symmetrically provided with a through groove (507), the through groove (507) is arranged longitudinally, and the side wall of the slide block three (504) is symmetrically provided with a limit block (508), the limit block (508) passes through the through groove (507) and is arranged in the positioning groove (304).

8. A thin film detection device according to claim 7, characterized in that: The pasting mechanism (4) comprises a side plate (401), the side plate (401) being symmetrically arranged on the top of the bottom plate (101), a storage roller (402), a collecting roller (403) and a rotating roller (404) being rotatably arranged in the side plate (401), the storage roller (402) being arranged on a side of the collecting roller (403) close to the grid bin (3), the rotating roller (404) being arranged between the collecting roller (403) and the storage roller (402), and the storage roller (402) and the side plate (401), the collecting roller (403) and the rotating roller (404) are interference fit, the collecting roller (403) and the rotating roller (404) are motorized rollers, an adhesive tape (405) is further provided in the pasting mechanism (4), the adhesive tape (405) is wound around the storage roller (402), the end of the adhesive tape (405) is wound around the collecting roller (403), the side wall of the rotating roller (404) is provided with an elastic telescopic rod (406), and the end of the elastic telescopic rod (406) is rotatably provided with a pasting roller (407).

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