CN116499918A

CN116499918A - Release film wear resistance detection device and application method thereof

Info

Publication number: CN116499918A
Application number: CN202310585787.1A
Authority: CN
Inventors: 李冬; 李巍; 熊向东
Original assignee: Hunan Guochen New Material Technology Co ltd
Current assignee: Hunan Guochen New Material Technology Co ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-07-28

Abstract

The invention belongs to the technical field of wear resistance detection devices, in particular to a release film wear resistance detection device and a use method thereof, aiming at the problems that the wear resistance under different forces cannot be tested in the prior art, friction marks on the surface of a release film are required to be observed manually, and the detection efficiency is low, the invention provides the following scheme, which comprises the following steps: the workbench is characterized in that a fixed column is fixedly connected to the top of the workbench, a rotating disc is sleeved on the outer wall of the fixed column in a rotating mode, a placing plate is fixedly connected to the top of the fixed column, and in the invention, the cushion block and the first friction disc are close to each other, so that the release film can be clamped for later friction, the pressure value of the release film can be detected through the pressure sensor by the first friction disc, the abrasion resistance of the release film can be detected under different pressures, and in addition, the U-shaped plate and the containing frame can be rotated by 90 degrees when the cushion block moves upwards, so that a camera can shoot friction marks on the release film.

Description

Release film wear resistance detection device and application method thereof

Technical Field

The invention relates to the technical field of wear resistance detection devices, in particular to a release film wear resistance detection device and a use method thereof.

Background

The release film refers to a film with a distinguishing surface energy, and the release film has no viscosity or slight viscosity after being contacted with a specific material under a limited condition, and in order to increase the release force of the plastic film, the plastic film is subjected to plasma treatment, fluorine-coated treatment, or silicon (silicone) coated release agent on the surface layer of the film material, such as PET, PE, OPP; the self-releasing film can show extremely light and stable releasing force for various different organic pressure sensitive adhesives (such as hot melt adhesives, acrylic adhesives and rubber pressure sensitive adhesives), the service life of the releasing film is determined by the wear resistance of the releasing film, and the good wear resistance can adapt to various different working environments and strengths.

The invention, for example, publication number CN101750275B discloses a release film detecting device, which is characterized by comprising a bracket, an objective table and an executing mechanism, wherein the objective table is used for placing a release film to be detected, and the executing mechanism is arranged on the bracket and can move relative to the objective table to act on the surface of the release film to be detected. Compared with the prior art, the invention has the advantages that: the special equipment is adopted to implement quantitative force on the surface of the release film instead of manual non-quantitative reciprocating rubbing, so that the subsequent force measurement result has uniformity and standardization, and the influence of artificial factors on the performance detection result of the release film is avoided. The whole structure is simple, the manufacture is convenient, and the operation is easy to realize.

The technical scheme still has the following problems in the using process:

1. according to the technical scheme, when the abrasion resistance of the release film is detected, the release film is rubbed reciprocally through the bottom end of each executing piece, so that the detection purpose is achieved, but after the friction of the release film is finished, the release film is required to be taken out manually, and friction marks on the surface of the release film are observed, so that the detection efficiency is low;

2. when observing friction marks on the surface of the release film, the release film needs to be aligned with the alignment light source, so that the friction marks on the surface of the release film can be clearly observed, and a worker can align with the light source for a long time to influence the eyesight of the worker;

3. in the technical scheme, the bottom end of the executing piece directly carries out reciprocating friction on the release film, the friction is not comprehensive enough, and the friction force cannot be adjusted, so that the wear resistance under different forces cannot be tested, and the wear resistance is not detected comprehensively enough.

Aiming at the problems, the invention provides a release film wear resistance detection device and a use method thereof.

Disclosure of Invention

The invention provides a release film wear resistance detection device and a use method thereof, which solve the defects that the wear resistance under different forces cannot be tested in the prior art, friction marks on the surface of a release film are required to be observed manually, and the detection efficiency is low.

The invention provides the following technical scheme:

a release film wear resistance detection device, comprising: the workbench is characterized in that a fixed column is fixedly connected to the top of the workbench, a rotating disc is sleeved on the outer wall of the fixed column in a rotating mode, a placing plate is fixedly connected to the top of the fixed column, and a camera is fixedly connected to one side of the placing plate;

the workbench is provided with a hydraulic channel and a sliding groove, the hydraulic channel is communicated with the sliding groove, and the top of the workbench is provided with a round groove;

the placing structure is arranged in the rotating disc and used for automatically clamping the release film to be detected, so that the release film can be rubbed in an omnibearing manner in the later period;

the friction structure is arranged on one side of the top of the workbench and is used for carrying out omnibearing friction on the release film clamped in the placing structure;

shooting structure sets up in the hydraulic pressure way for will place the structure and vertically place, and shoot the release film after the friction with later stage camera, and friction structure can be used for driving shooting structure.

In one possible design, the placing structure comprises a plurality of rotating shafts fixedly connected in a rotating disc, a rotating plate is sleeved on the outer wall of the rotating shaft in a rotating mode, two torsion springs are sleeved on the outer wall of the rotating shaft, one ends of the two torsion springs, which are close to each other, are fixedly connected with two sides of the rotating plate respectively, one ends of the torsion springs, which are far away from the rotating plate, are fixedly connected with a U-shaped plate, one ends of the rotating plates, which are far away from a fixed column, are fixedly connected with a placing frame used for placing release films in the U-shaped plate in a rotating mode, a first through hole and a placing groove which are communicated are formed in the placing frame, a notch used for placing the release films is formed in one side of the placing frame, and the notch is communicated with the placing groove;

The clamping ring for clamping the release film is connected in a sliding manner in the placing groove, tension springs are fixedly connected to two sides of the top of the clamping ring, the top ends of the tension springs are fixedly connected with the placing frame through convex blocks, trapezoidal blocks penetrate through two sides of the placing frame in a sliding manner, and inclined planes on one side of the trapezoidal blocks are matched with the clamping ring; the die pad is characterized in that the die pad to be detected is placed in the placing groove from a notch at one side of the placing frame, when the pad moves upwards, the pad extends to the first through hole to initially limit the placing frame, the placing frame is prevented from rotating, the pad drives the L-shaped plate to move upwards, the L-shaped plate and one inclined plane of the trapezoid block are matched with each other to extrude the trapezoid block into the placing groove, the inclined plane at the other side of the trapezoid block is matched with the pressing ring, and the pressing ring can clamp the die pad in the placing groove.

In one possible design, the friction structure comprises a transmission box fixedly connected to one side of the top of the workbench, a bidirectional screw rod is rotationally connected to the transmission box, two moving plates are slidingly connected to the bidirectional screw rod, the two moving plates are respectively positioned on the positive and negative thread sections of the bidirectional screw rod, one ends of the two moving plates are respectively fixedly connected with a cushion block and a connecting block, the connecting block is positioned above the cushion block, a first friction disc is arranged at the bottom of the connecting block, the cushion block is in sliding fit with a first through hole, the cushion blocks are in sliding connection in a sliding groove, L-shaped plates are fixedly connected to two sides of the cushion blocks, the L-shaped plates are matched with inclined surfaces of the other side of the trapezoid blocks, a pressure sensor is fixedly embedded at the top of the cushion block, and a second friction disc is rotationally connected to the first friction disc; the starting motor drives the bidirectional screw rod to rotate, the bidirectional screw rod drives the cushion block and the first friction disc to move towards the middle, the L-shaped plate and the trapezoidal block are matched to clamp the release film in the placing groove, the first friction disc and the cushion block are mutually close, when the first friction disc and the cushion block touch the release film simultaneously, the pressure sensor senses pressure, the pressure sensor can detect the pressure value of the first friction disc to the release film, and then the wear resistance of the release film can be detected under different pressures.

In one possible design, the shooting structure comprises a first piston plate which is connected in a sealing sliding manner in one end of a hydraulic channel, wherein the top of the first piston plate is fixedly connected with the same first magnet through a plurality of round rods, the bottom of the rotating disc is fixedly connected with a plurality of L-shaped limiting rods corresponding to a containing frame, iron bearing blocks matched with the first magnet are arranged in the L-shaped limiting rods, the top of the iron bearing blocks is connected with one end, far away from the containing frame, of the rotating plate through a pull rope, a second piston plate is connected in a sealing sliding manner in the other end of the hydraulic channel, and the top of the second piston plate is fixedly connected with a connecting rod fixedly connected with the bottom of a cushion block; the rotating disc can enable the iron bearing block and the U-shaped plate to synchronously rotate through the L-shaped limiting rod, when the iron bearing block is located above the first magnet, the first magnet generates magnetic attraction to the iron bearing block, the cushion block moves upwards to drive the second piston plate to move upwards, the first piston plate drives the iron bearing block to move downwards through the first magnet, the iron bearing block pulls the rotating plate and the U-shaped plate to rotate by 90 degrees through the pull rope, and at the moment, the release film in the holding frame just aims at the camera, and friction marks on the surface of the release film are shot through the camera.

In one possible design, a driving motor is fixedly connected in the connecting block, an output shaft of the driving motor is fixedly connected with a rotating shaft, the bottom end of the rotating shaft rotates to penetrate through the connecting block and is fixedly connected with a second friction disk, the first friction disk is rotationally sleeved on the outer wall of the rotating shaft, the second friction disk is rotationally connected in the first friction disk, a first gear is fixedly sleeved on the outer wall of the rotating shaft, second gears meshed with the first gears are rotationally connected to two sides of the bottom of the connecting block, and a toothed ring meshed with the second gears is fixedly connected to the top of the first friction disk; the driving motor drives the rotation shaft and the second friction disk to rotate, the rotation shaft drives the first friction disk to rotate through the cooperation of the second gear, the second gear and the toothed ring, and the rotation direction of the first friction disk is opposite to that of the second friction disk, so that the abrasion resistance of the release film can be detected more comprehensively.

In one possible design, the bottom inner wall of the circular groove is fixedly connected with an air bag, the circular groove is internally and slidably connected with a lifting disc, the bottom of the lifting disc is connected with the top of the air bag through viscose, the inner wall of one side of the circular groove, which is far away from each other, is fixedly connected with a spring through a bump, the top end of the spring is fixedly connected with the bottom of the lifting disc, the top of the lifting disc is fixedly connected with the same arc cover through a plurality of circular rods, the arc cover is matched with an L-shaped limiting rod, and one side of the air bag is fixedly connected with an exhaust pipe which extends to the upper part of the workbench; hold the frame and drive from the type membrane and rotate to the arc cover, L type restriction pole is with arc cover and lifting disk downwardly extrusion when rotating, and the lifting disk is with the gas in the gasbag through blast pipe and the groove of giving vent to anger in the standing groove, and then can blow off from the type membrane in the standing groove, and the staff is put into the standing groove with next from the type membrane, continues the detection of next round, and detection efficiency is high.

In one possible design, a yielding groove for yielding the exhaust pipe is arranged in the U-shaped plate, an air outlet groove communicated with the placing groove is arranged on one side, close to the fixed column, of the containing frame, and the air outlet groove is matched with the exhaust pipe; when the rotating disc drives the rotating plate, the U-shaped plate and the containing frame to rotate, the abdicating groove can abdicate the exhaust pipe, when the L-shaped limiting rod rotates to the upper side of the arc-shaped cover, the exhaust pipe is just aligned with the air outlet groove from the air outlet, and then gas in the air bag is discharged into the placing groove through the exhaust pipe and the air outlet groove, and then the release film can be blown out of the placing groove.

In one possible design, the inner walls of one side, far away from each other, of the U-shaped plate are fixedly connected with second magnets, the two sides of the containing frame are fixedly connected with third magnets, the second magnets are matched with the third magnets, and a plurality of stop blocks for braking the rotating plate are fixedly connected in the rotating plate; the rotating plate can reset under the torsion action of the torsion spring, the stop block can limit the rotating plate, and in addition, the containing frame can be kept in a horizontal state through the cooperation of the second magnet and the third magnet, so that the release film is conveniently placed in the placing groove, and the first friction disc and the cushion block are conveniently inserted into the placing groove and the first through hole respectively to be rubbed.

In one possible design, the top of the fixing column is fixedly connected with an electric push rod, a Z-shaped rod is penetrated in the placing plate in a sliding way, one end of the Z-shaped rod is fixedly connected with an output shaft of the electric push rod, and the other end of the Z-shaped rod is fixedly connected with a sucker for sucking the containing frame; through electric putter drive Z type pole reciprocating motion, the Z type pole can produce the absorption to holding one side of frame through the sucking disc, and then when Z type pole reciprocating motion, can drive and hold the reciprocal certain angle of rotation of frame to make the camera shoot from the type membrane under the different angles, thereby can obtain comparatively clear picture, just detect from the type membrane wearability through the picture light with later stage staff.

The application method of the release film wear resistance detection device comprises the following steps:

s1, placing a release film to be detected into a placing groove from one side of a containing frame, driving a rotating disc to rotate through a driving structure (the driving structure can be that a rotating motor drives the rotating disc to rotate through meshing of a bevel gear and a bevel gear ring, the driving structure is not limited in the process), when the containing frame moves between a first friction disc and a cushion block, a starting motor drives a bidirectional screw rod to rotate, the bidirectional screw rod drives the cushion block and the first friction disc to move towards the middle, when the cushion block moves upwards, the cushion block extends into a first through hole to primarily limit the containing frame, the containing frame is prevented from rotating, the cushion block drives an L-shaped plate to move upwards, one side inclined plane of the L-shaped plate is matched with a belt to extrude the trapezoid block into the placing groove, the other inclined plane of the trapezoid block is matched with a pressing ring, and the pressing ring can clamp the release film in the placing groove;

S2, along with the mutual approach of the first friction disc and the cushion block, when the first friction disc and the cushion block touch the release film simultaneously, the pressure sensor senses the pressure, the pressure value of the first friction disc to the release film can be detected through the pressure sensor, and then the wear resistance of the release film can be detected under different pressures, the driving motor is started to drive the rotating shaft and the second friction disc to rotate, the rotating shaft drives the first friction disc to rotate through the cooperation of the second gear, the second gear and the toothed ring, the rotating directions of the first friction disc and the second friction disc are opposite, and further the wear resistance detection can be more comprehensively carried out on the release film;

s3, after friction on the release film is finished, the holding frame rotates to the upper side of the first magnet, the rotating disc moves the iron bearing block to the upper side of the first magnet through the L-shaped limiting rod, the first magnet generates magnetic attraction to the iron bearing block, then the bidirectional screw rod rotates again to clamp the next release film, the cushion block drives the second piston plate to move upwards through the connecting rod, the first piston plate drives the iron bearing block to move downwards through the first magnet, the iron bearing block pulls the rotating plate and the U-shaped plate to rotate for 90 degrees through the pull rope, at the moment, the release film in the holding frame just aims at the camera, one side, far away from the camera, of the release film in the holding frame aims at an external light source, and friction marks on the surface of the release film are shot through the camera;

S4, driving the Z-shaped rod to reciprocate through the electric push rod, wherein the Z-shaped rod can adsorb one side of the containing frame through the sucker, and then when the Z-shaped rod reciprocates, the Z-shaped rod can drive the containing frame to reciprocate by a certain angle, so that the camera shoots release films under different angles, a clearer picture can be obtained, and the wear resistance of the release films can be easily detected through the picture by a later-stage worker;

s5, after the shooting of the camera is finished, the rotating plate and the U-shaped plate reset under the torsion action of the torsion spring, the holding frame continues to drive the release film to rotate and move to the arc cover, the L-shaped limiting rod extrudes the arc cover and the lifting disc downwards when rotating, the lifting disc discharges gas in the air bag into the placing groove through the exhaust pipe and the air outlet groove, and then the release film can be blown out of the placing groove, a worker places the next release film into the placing groove, detection of the next round is continued, and the detection efficiency is high.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

According to the invention, a bidirectional screw rod is rotationally connected in the transmission box, two moving plates are slidably connected in the bidirectional screw rod, one ends of the two moving plates are respectively and fixedly connected with a cushion block and a connecting block, the bottom of the connecting block is provided with a first friction disc, two sides of the cushion block are fixedly connected with L-shaped plates, the L-shaped plates are matched with inclined planes on the other side of the trapezoid blocks, and a pressure sensor is fixedly embedded at the top of the cushion block; the bidirectional screw rod drives the cushion block and the first friction disc to move towards the middle, the L-shaped plate and the trapezoidal block are matched to clamp the release film in the placing groove, when the first friction disc and the cushion block are contacted with the release film at the same time, the pressure sensor senses pressure, the pressure value of the first friction disc to the release film can be detected through the pressure sensor, and then the wear resistance of the release film can be detected under different pressures;

According to the invention, a first magnet is fixedly connected to the top of a first piston plate, a plurality of L-shaped limiting rods are fixedly connected to the bottom of a rotating disc, iron bearing blocks are arranged in the L-shaped limiting rods, the top of each iron bearing block is connected with one end of the rotating plate through a pull rope, a second piston plate is hermetically and slidingly connected to the other end of each hydraulic channel, and a connecting rod fixedly connected with the bottom of a cushion block is fixedly connected to the top of each second piston plate; the rotating disc can enable the iron bearing block and the U-shaped plate to synchronously rotate through the L-shaped limiting rod, the first magnet generates magnetic attraction to the iron bearing block, the cushion block drives the second piston plate to move upwards, the first piston plate drives the iron bearing block to move downwards through the first magnet, the iron bearing block pulls the rotating plate and the U-shaped plate to rotate by 90 degrees through the stay cord, at the moment, the release film in the accommodating frame is just aligned to the camera, and friction marks on the surface of the release film are shot through the camera;

according to the invention, an output shaft of the driving motor is fixedly connected with a rotating shaft, the bottom end of the rotating shaft is fixedly connected with a second friction disk, the first friction disk is rotationally sleeved on the outer wall of the rotating shaft, a first gear is fixedly sleeved on the outer wall of the rotating shaft, two sides of the bottom of the connecting block are rotationally connected with a second gear meshed with the first gear, and the top of the first friction disk is fixedly connected with a toothed ring meshed with the second gear; the driving motor drives the rotating shaft and the second friction disc to rotate, the rotating shaft drives the first friction disc to rotate through the cooperation of the second gear, the second gear and the toothed ring, and the rotating direction of the first friction disc is opposite to that of the second friction disc, so that the abrasion resistance of the release film can be detected more comprehensively;

According to the invention, an air bag is fixedly connected to the inner wall of the bottom of the circular groove, a lifting disc is connected in a sliding manner in the circular groove, the bottom of the lifting disc is connected with the top of the air bag through adhesive, an arc-shaped cover is fixedly connected to the top of the lifting disc, and an exhaust pipe extending to the upper part of the workbench is fixedly connected to one side of the air bag; the L-shaped limiting rod extrudes the arc-shaped cover and the lifting disc downwards when rotating, the lifting disc discharges gas in the air bag into the placing groove through the exhaust pipe and the air outlet groove, and then the release film can be blown out of the placing groove, a worker places the next release film into the placing groove, and the detection of the next wheel is continued, so that the detection efficiency is high.

According to the invention, the cushion block and the first friction disc are driven to be close to each other through the bidirectional screw rod, so that the release film can be clamped for later friction, the pressure value of the first friction disc to the release film can be detected through the pressure sensor, the wear resistance of the release film can be detected under different pressures, in addition, the U-shaped plate and the containing frame can be rotated by 90 degrees when the cushion block moves upwards, and the camera can shoot friction marks on the release film from different angles.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a release film wear resistance detection device according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a three-dimensional explosion structure of a release film wear resistance detection device according to an embodiment of the present invention;

fig. 3 is a schematic three-dimensional cross-sectional structure diagram of a first view angle of a release film wear resistance detection device according to an embodiment of the present invention;

fig. 4 is a schematic three-dimensional cross-sectional structure of a rotating disc of a release film wear resistance detection device according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a three-dimensional explosion structure of a U-shaped plate and a containing frame of a release film wear resistance detection device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a three-dimensional cross-sectional structure of a U-shaped plate and a holding frame of a release film wear resistance detection device according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a three-dimensional cross-sectional structure of a transmission case and a cushion block of a release film wear resistance detection device according to an embodiment of the present invention;

fig. 8 is a schematic three-dimensional sectional structure diagram of a first friction disc and a second friction disc of a release film wear resistance detection device according to an embodiment of the present invention;

fig. 9 is a schematic three-dimensional structure diagram of a first gear and a toothed ring of a release film wear resistance detection device according to an embodiment of the present invention;

Fig. 10 is a schematic view of a second perspective three-dimensional cross-sectional structure of a release film wear resistance detection device according to an embodiment of the present invention;

FIG. 11 is a schematic view of a three-dimensional cross-sectional structure of an air bag and an arc-shaped cover of a release film wear resistance detection device provided by the invention;

fig. 12 is a schematic partial front sectional view of a release film wear resistance detecting device according to a second embodiment of the present invention.

Reference numerals:

1. a work table; 2. fixing the column; 3. a rotating disc; 4. a rotating shaft; 5. a rotating plate; 6. a torsion spring; 7. a U-shaped plate; 8. a holding rack; 9. a first through hole; 10. a placement groove; 11. a tension spring; 12. a trapezoid block; 13. a transmission case; 14. a two-way screw rod; 15. a moving plate; 16. a sliding groove; 17. a cushion block; 18. an L-shaped plate; 19. a pressure sensor; 20. a connecting block; 21. a first friction plate; 22. a rotating shaft; 23. a second friction plate; 24. a driving motor; 25. a first gear; 26. a second gear; 27. a toothed ring; 28. a hydraulic passage; 29. a first piston plate; 30. a first magnet; 31. an L-shaped limiting rod; 32. iron bearing blocks; 33. a pull rope; 34. a second piston plate; 35. a connecting rod; 36. placing a plate; 37. a camera; 38. a circular groove; 39. a lifting disc; 40. an arc-shaped cover; 41. a spring; 42. an air bag; 43. an exhaust pipe; 44. a stop block; 45. a second magnet; 46. a third magnet; 47. a relief groove; 48. an air outlet groove; 49. an electric push rod; 50. a Z-shaped rod; 51. a suction cup; 52. and a compression ring.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present invention are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present invention, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present invention.

In embodiments of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the embodiment of the present invention, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

Example 1

Referring to fig. 1, 2 and 3, a release film wear resistance detection device according to the present embodiment includes: the workbench 1, the top of the workbench 1 is fixedly connected with a fixed column 2 through a bolt, the outer wall of the fixed column 2 is rotationally sleeved with a rotating disc 3, the top of the fixed column 2 is fixedly connected with a placing plate 36 through a bolt, and one side of the placing plate 36 is fixedly connected with a camera 37 through a bolt; the workbench 1 is provided with a hydraulic channel 28 and a sliding groove 16, the hydraulic channel 28 is communicated with the sliding groove 16, and the top of the workbench 1 is provided with a circular groove 38; the placing structure is arranged in the rotating disc 3 and is used for automatically clamping the release film to be detected, so that the release film can be rubbed in an omnibearing manner at a later stage; the friction structure is arranged on one side of the top of the workbench 1 and is used for carrying out omnibearing friction on the release film clamped in the placing structure; shooting structure sets up in hydraulic pressure way 28 for will place the structure and vertically place to shoot the release film after the friction with later stage camera 37, and friction structure can be used for driving shooting structure.

Referring to fig. 4, 5 and 6, the placement structure comprises a plurality of rotating shafts 4 fixedly connected in a rotating disc 3 through bolts, a rotating plate 5 is sleeved on the outer wall of each rotating shaft 4 in a rotating manner, two torsion springs 6 are sleeved on the outer wall of each rotating shaft 4, one ends of the two torsion springs 6, which are close to each other, are respectively fixedly connected with two sides of the rotating plate 5, one ends of the torsion springs 6, which are far away from the rotating plate 5, are fixedly connected with the rotating disc 3, one ends of the rotating plate 5, which are far away from a fixed column 2, are fixedly connected with a U-shaped plate 7 through bolts, a containing frame 8 for containing a release film is rotationally connected with the U-shaped plate 7, a first through hole 9 and a placing groove 10 which are communicated are arranged in the containing frame 8, a notch for containing the release film is formed in one side of the containing frame 8, and the notch is communicated with the placing groove 10; a pressing ring 52 for clamping the release film is connected in a sliding manner in the placing groove 10, tension springs 11 are fixedly connected to two sides of the top of the pressing ring 52, the top ends of the tension springs 11 are fixedly connected with the placing frame 8 through lugs, trapezoidal blocks 12 are penetrated through two sides of the placing frame 8 in a sliding manner, and one inclined surface of each trapezoidal block 12 is matched with the pressing ring 52; the release film to be detected is placed into the placing groove 10 from the notch at one side of the placing frame 8, when the cushion block 17 moves upwards, the cushion block 17 extends into the first through hole 9 to preliminarily limit the placing frame 8, the placing frame 8 is prevented from rotating, the cushion block 17 drives the L-shaped plate 18 to move upwards, the L-shaped plate 18 and one inclined plane of the trapezoid block 12 are matched with a belt to extrude the trapezoid block 12 into the placing groove 10, the inclined plane at the other side of the trapezoid block 12 is matched with the pressing ring 52, and at the moment, the pressing ring 52 can be used for separating the film in the placing groove 10.

Referring to fig. 7 and 8, the friction structure comprises a transmission case 13 fixedly connected to one side of the top of the workbench 1 through bolts, a bidirectional screw rod 14 is rotationally connected to the transmission case 13, two movable plates 15 are slidably connected to the bidirectional screw rod 14, the two movable plates 15 are respectively positioned on the front and back thread sections of the bidirectional screw rod 14, one ends of the two movable plates 15 are respectively fixedly connected with a cushion block 17 and a connecting block 20 through bolts, the connecting block 20 is positioned above the cushion block 17, a first friction disc 21 is arranged at the bottom of the connecting block 20, the cushion block 17 is in sliding fit with the first through hole 9, the cushion block 17 is in sliding fit in a sliding groove 16, two sides of the cushion block 17 are fixedly connected with an L-shaped plate 18 through bolts, the L-shaped plate 18 is matched with the inclined surface of the other side of the trapezoid block 12, and a pressure sensor 19 is fixedly embedded at the top of the cushion block 17; the start motor drives the bidirectional screw rod 14 to rotate, the bidirectional screw rod 14 drives the cushion block 17 and the first friction disc 21 to move towards the middle, the L-shaped plate 18 and one of the trapezoid blocks 12 can clamp the release film in the placing groove 10, along with the mutual approaching of the first friction disc 21 and the cushion block 17, when the first friction disc 21 and the cushion block 17 touch the release film simultaneously, the pressure sensor 19 senses pressure, the pressure value of the first friction disc 21 to the release film can be detected through the pressure sensor 19, and then the wear resistance of the release film can be detected under different pressures.

Referring to fig. 3 and 5, the photographing structure includes a first piston plate 29 hermetically and slidingly connected in one end of a hydraulic channel 28, the top of the first piston plate 29 is fixedly connected with the same first magnet 30 through a plurality of round bars, the bottom of the rotating disc 3 is fixedly connected with a plurality of L-shaped limiting rods 31 corresponding to the containing frame 8 through bolts, iron bearing blocks 32 matched with the first magnet 30 are arranged in the L-shaped limiting rods 31, the top of the iron bearing blocks 32 is connected with one end of the rotating plate 5, far away from the containing frame 8, through a pull rope 33, a second piston plate 34 is hermetically and slidingly connected in the other end of the hydraulic channel 28, and a connecting rod 35 fixedly connected with the bottom of a cushion block 17 is fixedly connected on the top of the second piston plate 34 through bolts; the rotating disc 3 can enable the iron bearing block 32 to rotate synchronously with the U-shaped plate 7 through the L-shaped limiting rod 31, when the iron bearing block 32 is located above the first magnet 30, the first magnet 30 generates magnetic attraction to the iron bearing block 32, the cushion block 17 drives the second piston plate 34 to move upwards when moving upwards, the first piston plate 29 drives the iron bearing block 32 to move downwards through the first magnet 30, the iron bearing block 32 pulls the rotating plate 5 and the U-shaped plate 7 to rotate 90 degrees through the pull rope 33, at the moment, the release film in the accommodating frame 8 is just aligned with the camera 37, and friction marks on the surface of the release film are shot through the camera 37.

Referring to fig. 8 and 9, a driving motor 24 is fixedly connected in a connecting block 20 through bolts, an output shaft of the driving motor 24 is fixedly connected with a rotating shaft 22 through a coupler, the bottom end of the rotating shaft 22 is rotatably penetrated through the connecting block 20 and fixedly connected with a second friction disk 23, a first friction disk 21 is rotatably sleeved on the outer wall of the rotating shaft 22, the second friction disk 23 is rotatably connected in the first friction disk 21, a first gear 25 is fixedly sleeved on the outer wall of the rotating shaft 22, two sides of the bottom of the connecting block 20 are rotatably connected with a second gear 26 meshed with the first gear 25, and the top of the first friction disk 21 is fixedly connected with a toothed ring 27 meshed with the second gear 26 through bolts; the driving motor 24 drives the rotation shaft 22 and the second friction disk 23 to rotate, the rotation shaft 22 drives the first friction disk 21 to rotate through the cooperation of the second gear 26, the second gear 26 and the toothed ring 27, and the rotation directions of the first friction disk 21 and the second friction disk 23 are opposite, so that the abrasion resistance of the release film can be detected more comprehensively.

Referring to fig. 10 and 11, an air bag 42 is fixedly connected to the inner wall of the bottom of the circular groove 38, a lifting disc 39 is slidably connected in the circular groove 38, the bottom of the lifting disc 39 is connected with the top of the air bag 42 through adhesive, springs 41 are fixedly connected to the inner walls of the sides, far away from each other, of the circular groove 38 through bumps, the top ends of the springs 41 are fixedly connected with the bottom of the lifting disc 39 through bolts, the top of the lifting disc 39 is fixedly connected with the same arc-shaped cover 40 through a plurality of circular rods, the arc-shaped cover 40 is matched with the L-shaped limiting rod 31, and an exhaust pipe 43 extending to the upper part of the workbench 1 is fixedly connected to one side of the air bag 42; hold frame 8 drive from the type membrane and rotate to arc cover 40 on, L type restriction pole 31 is with arc cover 40 and lifting disk 39 downwardly extrusion when rotating, and lifting disk 39 is with the gas in the gasbag 42 through blast pipe 43 and gas outlet groove 48 row into standing groove 10 in, and then can blow off from the type membrane in the standing groove 10, and the staff is with next from the type membrane in putting into standing groove 10, continues the detection of next round, and detection efficiency is high.

Referring to fig. 5 and 6, a relief groove 47 for relieving the vent pipe 43 is formed in the u-shaped plate 7, an air outlet groove 48 communicated with the placing groove 10 is formed in one side, close to the fixed column 2, of the containing frame 8, and the air outlet groove 48 is matched with the vent pipe 43; when the rotating disc 3 drives the rotating plate 5, the U-shaped plate 7 and the containing frame 8 to rotate, the giving way groove 47 can give way to the exhaust pipe 43, when the L-shaped limiting rod 31 rotates to the upper side of the arc-shaped cover 40, the exhaust pipe 43 is just aligned with the air outlet groove 48 from the air outlet, and then the air in the air bag 42 is discharged into the containing groove 10 through the exhaust pipe 43 and the air outlet groove 48, and further the release film can be blown out from the containing groove 10.

Referring to fig. 5, the inner walls of the sides of the u-shaped plates 7 far from each other are fixedly connected with a second magnet 45 through bolts, the two sides of the holding frame 8 are fixedly connected with a third magnet 46 through bolts, the second magnet 45 is matched with the third magnet 46, and a plurality of stop blocks 44 for braking the rotating plate 5 are fixedly connected in the rotating disc 3 through bolts; the rotating plate 5 can reset under the torsion action of the torsion spring 6, the stop block 44 can limit the rotating plate 5, and in addition, the containing frame 8 can be kept in a horizontal state through the cooperation of the second magnet 45 and the third magnet 46, so that the release film is conveniently placed in the placing groove 10, and the first friction disc 21 and the cushion block 17 are conveniently inserted into the placing groove 10 and the first through hole 9 respectively for friction.

Example 2

Referring to fig. 6, the top of the fixed column 2 is fixedly connected with an electric push rod 49 through a bolt, a Z-shaped rod 50 is slidably penetrated in the placing plate 36, one end of the Z-shaped rod 50 is fixedly connected with an output shaft of the electric push rod 49, and the other end of the Z-shaped rod 50 is fixedly connected with a sucking disc 51 for sucking the holding frame 8; through electric putter 49 drive Z type pole 50 reciprocating motion, Z type pole 50 can produce the absorption to holding one side of frame 8 through sucking disc 51, and then when Z type pole 50 reciprocating motion, can drive and hold frame 8 reciprocal rotation certain angle to make camera 37 shoot the release film under the different angles, thereby can obtain comparatively clear picture, just detect release film wearability through the picture light with later stage staff.

s1, placing a release film to be detected into a placing groove 10 from one side of a containing frame 8, driving a rotating disc 3 to rotate through a driving structure (the driving structure can be that a rotating motor drives the rotating disc 3 to rotate through meshing of a bevel gear and a bevel gear ring 27, the driving structure is not limited in the process), when the containing frame 8 moves between a first friction disc 21 and a cushion block 17, a starting motor drives a bidirectional screw rod 14 to rotate, the bidirectional screw rod 14 drives the cushion block 17 and the first friction disc 21 to move towards the middle, when the cushion block 17 moves upwards, the cushion block 17 extends into a first through hole 9 to primarily limit the containing frame 8, the containing frame 8 is prevented from rotating, the cushion block 17 drives an L-shaped plate 18 to move upwards, the L-shaped plate 18 and a slope matching belt on one side of a trapezoid block 12 squeeze the trapezoid block 12 into the placing groove 10, and a slope on the other side of the trapezoid block 12 is matched with a pressing ring 52, and at the moment, the cushion block 52 can clamp the release film in the placing groove 10;

S2, along with the mutual approaching of the first friction disk 21 and the cushion block 17, when the first friction disk 21 and the cushion block 17 are simultaneously contacted with the release film, the pressure sensor 19 senses the pressure, the pressure value of the first friction disk 21 to the release film can be detected through the pressure sensor 19, and then the wear resistance of the release film can be detected under different pressures, the driving motor 24 is started to drive the rotating shaft 22 and the second friction disk 23 to rotate, the rotating shaft 22 drives the first friction disk 21 to rotate through the cooperation of the second gear 26, the second gear 26 and the toothed ring 27, and the rotating directions of the first friction disk 21 and the second friction disk 23 are opposite, so that the wear resistance of the release film can be more comprehensively detected;

s3, after friction on the release film is finished, the holding frame 8 rotates to the upper side of the first magnet 30, the iron bearing block 32 is moved to the upper side of the first magnet 30 by the rotating disc 3 through the L-shaped limiting rod 31, the first magnet 30 generates magnetic attraction force on the iron bearing block 32, then the bidirectional screw rod 14 rotates again to clamp the next release film, the cushion block 17 drives the second piston plate 34 to move upwards through the connecting rod 35, the first piston plate 29 drives the iron bearing block 32 to move downwards through the first magnet 30, the iron bearing block 32 pulls the rotating plate 5 and the U-shaped plate 7 to rotate for 90 degrees through the pull rope 33, at the moment, the release film in the holding frame 8 just aligns with the camera 37, one side of the release film in the holding frame 8, far away from the camera 37, aligns with an external light source, and friction marks on the surface of the release film are shot through the camera 37;

S4, in addition, the Z-shaped rod 50 is driven to reciprocate through the electric push rod 49, the Z-shaped rod 50 can adsorb one side of the accommodating frame 8 through the sucker 51, and then when the Z-shaped rod 50 reciprocates, the accommodating frame 8 can be driven to reciprocate for a certain angle, so that the camera 37 shoots release films under different angles, a clearer picture can be obtained, and the wear resistance of the release films can be easily detected through the picture by later-stage staff;

s5, after shooting of the camera 37 is finished, the rotating plate 5 and the U-shaped plate 7 reset under the torsion action of the torsion spring 6, the holding frame 8 continues to drive the release film to rotate and move to the arc-shaped cover 40, the L-shaped limiting rod 31 extrudes the arc-shaped cover 40 and the lifting disc 39 downwards when rotating, the lifting disc 39 discharges gas in the air bag 42 into the placing groove 10 through the exhaust pipe 43 and the air outlet groove 48, then the release film can be blown out from the placing groove 10, a worker places the next release film into the placing groove 10, detection of the next round is continued, and the detection efficiency is high.

However, as well known to those skilled in the art, the working principles and wiring methods of the electric push rod 49, the camera 37, the driving motor 24 and the pressure sensor 19 are well known, which are all conventional means or common knowledge, and are not described herein in detail, and any choice can be made by those skilled in the art according to their needs or convenience.

The present invention is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present invention, and the changes or substitutions are intended to be covered by the scope of the present invention; embodiments of the invention and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. The utility model provides a from type membrane wear resistance detection device which characterized in that includes:

the automatic positioning device comprises a workbench (1), wherein a fixed column (2) is fixedly connected to the top of the workbench (1), a rotating disc (3) is sleeved on the outer wall of the fixed column (2) in a rotating mode, a placing plate (36) is fixedly connected to the top of the fixed column (2), and a camera (37) is fixedly connected to one side of the placing plate (36);

the workbench (1) is provided with a hydraulic channel (28) and a sliding groove (16), the hydraulic channel (28) is communicated with the sliding groove (16), and the top of the workbench (1) is provided with a circular groove (38);

the placing structure is arranged in the rotating disc (3) and is used for automatically clamping the release film to be detected, so that the release film can be rubbed in an omnibearing manner at a later stage;

The friction structure is arranged at one side of the top of the workbench (1) and is used for carrying out omnibearing friction on the release film clamped in the placing structure;

shooting structure sets up in hydraulic pressure way (28) for will place the structure and vertically place to shoot the release film after the friction with later stage camera (37), and friction structure can be used for driving to shoot the structure.

2. The device for detecting the wear resistance of the release film according to claim 1, wherein the placement structure comprises a plurality of rotating shafts (4) fixedly connected in a rotating disc (3), rotating plates (5) are sleeved on the outer walls of the rotating shafts (4) in a rotating mode, two torsion springs (6) are sleeved on the outer walls of the rotating shafts (4), one ends, close to each other, of the two torsion springs (6) are respectively fixedly connected with two sides of the rotating plates (5), one end, far away from the rotating plates (5), of the torsion springs (6) is fixedly connected with the rotating disc (3), one end, far away from a fixed column (2), of the rotating plates (5) is fixedly connected with a U-shaped plate (7), a containing frame (8) for containing the release film is rotationally connected with the U-shaped plate (7), a first through hole (9) and a containing groove (10) which are communicated are arranged in the containing frame (8), and a notch for placing the release film is arranged on one side of the containing frame (8) and is communicated with the containing groove (10);

The utility model discloses a clamping ring (52) that is used for the centre gripping to leave type membrane is connected with in the standing groove (10) in the sliding, the top both sides of clamping ring (52) all fixedly connected with extension spring (11), and the top of extension spring (11) is through lug and holding frame (8) fixed connection, the both sides that hold frame (8) all slide and run through have trapezoidal piece (12), and one side inclined plane and clamping ring (52) of trapezoidal piece (12) cooperate.

3. The device for detecting the wear resistance of the release film according to claim 1, wherein the friction structure comprises a transmission box (13) fixedly connected to one side of the top of the workbench (1), a bidirectional screw rod (14) is rotationally connected to the transmission box (13), two movable plates (15) are slidably connected to the bidirectional screw rod (14), the two movable plates (15) are respectively located on positive and negative thread sections of the bidirectional screw rod (14), one ends of the two movable plates (15) are respectively fixedly connected with a cushion block (17) and a connecting block (20), the connecting block (20) is located above the cushion block (17), a first friction disc (21) is arranged at the bottom of the connecting block (20), the cushion block (17) is in sliding fit with a first through hole (9), two sides of the cushion block (17) are fixedly connected with L-shaped plates (18) in a sliding groove (16), the L-shaped plates (18) are respectively matched with inclined planes of the other sides of the trapezoid blocks (12), and a pressure sensor (19) is fixedly embedded at the top of the cushion block (17).

4. The device for detecting the wear resistance of the release film according to claim 1, wherein the shooting structure comprises a first piston plate (29) which is connected in one end of a hydraulic channel (28) in a sealing sliding manner, the top of the first piston plate (29) is fixedly connected with one first magnet (30) through a plurality of round rods, the bottom of the rotating disc (3) is fixedly connected with a plurality of L-shaped limiting rods (31) corresponding to the containing frame (8), iron bearing blocks (32) matched with the first magnet (30) are arranged in the L-shaped limiting rods (31), the top of the iron bearing blocks (32) is connected with one end, far away from the containing frame (8), of the rotating plate (5) through a pull rope (33), in the other end of the hydraulic channel (28) in a sealing sliding manner, a second piston plate (34) is connected with a connecting rod (35) fixedly connected with the bottom of a cushion block (17).

5. The release film wear resistance detection device according to claim 3, wherein a driving motor (24) is fixedly connected in the connecting block (20), an output shaft of the driving motor (24) is fixedly connected with a rotating shaft (22), the bottom end of the rotating shaft (22) rotates to penetrate through the connecting block (20) and is fixedly connected with a second friction disc (23), the first friction disc (21) is rotationally sleeved on the outer wall of the rotating shaft (22), the second friction disc (23) is rotationally connected in the first friction disc (21), a first gear (25) is fixedly sleeved on the outer wall of the rotating shaft (22), second gears (26) meshed with the first gears (25) are rotationally connected to two sides of the bottom of the connecting block (20), and a toothed ring (27) meshed with the second gears (26) is fixedly connected to the top of the first friction disc (21).

6. The release film wear resistance detection device according to claim 1, wherein an airbag (42) is fixedly connected to the inner wall of the bottom of the circular groove (38), a lifting disc (39) is connected in the circular groove (38) in a sliding manner, the bottom of the lifting disc (39) is connected with the top of the airbag (42) through adhesive, springs (41) are fixedly connected to the inner wall of one side, far away from each other, of the circular groove (38) through bumps, the top ends of the springs (41) are fixedly connected with the bottom of the lifting disc (39), the top of the lifting disc (39) is fixedly connected with the same arc-shaped cover (40) through a plurality of circular rods, the arc-shaped cover (40) is matched with an L-shaped limiting rod (31), and an exhaust pipe (43) extending to the upper portion of the workbench (1) is fixedly connected to one side of the airbag (42).

7. The device for detecting the wear resistance of the release film according to claim 2, wherein a yielding groove (47) for yielding the exhaust pipe (43) is formed in the U-shaped plate (7), an air outlet groove (48) communicated with the placing groove (10) is formed in one side, close to the fixing column (2), of the containing frame (8), and the air outlet groove (48) is matched with the exhaust pipe (43).

8. The release film wear resistance detection device according to claim 2, wherein the inner walls of one side of the U-shaped plate (7) far away from each other are fixedly connected with second magnets (45), both sides of the holding frame (8) are fixedly connected with third magnets (46), the second magnets (45) are matched with the third magnets (46), and a plurality of stop blocks (44) for braking the rotating plate (5) are fixedly connected in the rotating plate (3).

9. The release film wear resistance detection device according to claim 1, wherein an electric push rod (49) is fixedly connected to the top of the fixing column (2), a Z-shaped rod (50) is penetrated in the placing plate (36) in a sliding manner, one end of the Z-shaped rod (50) is fixedly connected with an output shaft of the electric push rod (49), and a sucking disc (51) for sucking the holding frame (8) is fixedly connected to the other end of the Z-shaped rod (50).

10. The application method of the release film wear resistance detection device is characterized by comprising the following steps of:

s1, placing a release film to be detected into a placing groove (10) from one side of a containing frame (8), driving a rotating disc (3) to rotate through a driving structure, when the containing frame (8) moves between a first friction disc (21) and a cushion block (17), starting a motor to drive a bidirectional screw rod (14) to rotate, driving the cushion block (17) and the first friction disc (21) to move towards the middle by the bidirectional screw rod (14), when the cushion block (17) moves upwards, extending the cushion block (17) into a first through hole (9) to preliminarily limit the containing frame (8), avoiding the rotation of the containing frame (8), driving an L-shaped plate (18) to move upwards by the cushion block (17), extruding the trapezoid block (12) into the placing groove (10) by matching one side inclined surface of the L-shaped plate (18) with one side inclined surface of the trapezoid block (12), and matching the other side inclined surface of the trapezoid block (12) with a pressing ring (52), and clamping the release film in the placing groove (10) by the pressing ring (52);

S2, along with the mutual approaching of the first friction disc (21) and the cushion block (17), when the first friction disc (21) and the cushion block (17) are contacted with the release film simultaneously, the pressure sensor (19) senses the pressure, the pressure value of the first friction disc (21) to the release film can be detected through the pressure sensor (19), the wear resistance of the release film can be detected under different pressures, the driving motor (24) is started to drive the rotating shaft (22) and the second friction disc (23) to rotate, the rotating shaft (22) drives the first friction disc (21) to rotate through the cooperation of the second gear (26), the second gear (26) and the toothed ring (27), and the rotating direction of the first friction disc (21) is opposite to that of the second friction disc (23), so that the wear resistance detection can be carried out on the release film more comprehensively.

S3, after friction of the release film is finished, the holding frame (8) rotates to the upper side of the first magnet (30), the rotating disc (3) moves the iron bearing block (32) to the upper side of the first magnet (30) through the L-shaped limiting rod (31), the first magnet (30) generates magnetic attraction force to the iron bearing block (32), then the bidirectional screw rod (14) rotates again to clamp the next release film, the cushion block (17) drives the second piston plate (34) to move upwards through the connecting rod (35), the first piston plate (29) drives the iron bearing block (32) to move downwards through the first magnet (30), the iron bearing block (32) pulls the rotating plate (5) and the U-shaped plate (7) to rotate 90 degrees through the pull rope (33), the release film in the holding frame (8) is just aligned with the camera (37), one side, away from the camera (37), of the release film in the holding frame (8) is aligned with an external light source, and friction marks on the surface of the release film are shot through the camera (37);

S4, driving the Z-shaped rod (50) to reciprocate through the electric push rod (49), wherein the Z-shaped rod (50) can adsorb one side of the containing frame (8) through the sucker (51), and then when the Z-shaped rod (50) reciprocates, the containing frame (8) can be driven to reciprocate by a certain angle, so that the camera (37) shoots release films under different angles, a clearer picture can be obtained, and the wear resistance of the release films can be easily detected by later-stage staff through the picture;

s5, after shooting of the camera (37) is finished, the rotating plate (5) and the U-shaped plate (7) are reset under the torsion action of the torsion spring (6), the holding frame (8) continues to drive the release film to rotate and move to the arc-shaped cover (40), the L-shaped limiting rod (31) downwardly extrudes the arc-shaped cover (40) and the lifting disc (39) when rotating, the lifting disc (39) discharges gas in the air bag (42) into the placing groove (10) through the exhaust pipe (43) and the air outlet groove (48), then the release film can be blown out from the placing groove (10), a worker places the next release film into the placing groove (10), and the next round of detection is continued, so that the detection efficiency is high.