Detection device and coating equipment

Abstract

The utility model discloses a detection device and coating equipment. The detection device is used for detecting the deformation quantity of the surface of a to-be-detected film and comprises a rack, a driving mechanism and a detection mechanism. The driving mechanism is arranged on the rack; the detection mechanism is arranged on the driving mechanism and reciprocates along a first direction under the driving of the driving mechanism, the detection mechanism comprises a mounting seat, a rotating shaft, a detection rod, a detection head, a pressure detection element and an elastic assembly, the rotating shaft is arranged on the rack and extends along the first direction, and the detection rod can move along the length direction of the rotating shaft and can rotate around the rotating shaft; the pressure detection element and the elastic assembly are arranged on the mounting base, the elastic assembly abuts against the detection rod, the pressure detection element is used for detecting the pressure borne by the elastic assembly, and the detection head is arranged at the end, away from the mounting base, of the detection rod and makes contact with the surface of the to-be-detected film. The horizontal detection device can solve the problem that a horizontal detection instrument in the prior art cannot detect the deformation of the surface of the membrane material.

Description

Technical Field

[0001] The present application relates to the field of thin film detection technology, and in particular to a detection device and a coating device. Background Art

[0002] At present, the surface metallization treatment of plastic functional films and the related coating technology of flexible substrates are widely used. Most of the applications are to deposit metal layers or non-metal layers on the surface of very thin (only a few microns thick) base films by vacuum coating. Since the application of the film material after coating has been completed has relatively high requirements on the surface quality of the film material, especially the deformation of the film surface, in order to avoid the quality problems of material coating of composite current collector materials in the process of preparing the battery cell, the surface quality of the film material after coating (convex or concave, parallelism of the film material) needs to be tested during the debugging of the roller system state of the coating equipment.

[0003] However, the existing horizontal detection instrument is difficult to detect in a space with a very dense roller system, and the horizontal detection instrument cannot obtain the stress state of the film material based on the roller system support movement state (film material tension or relaxation state), which will affect the base film's adhesion to the roller during coating, and the film material will have wrinkles, bulging and other defects during the winding process. Therefore, a set of detection devices needs to be designed to detect the deformation of the film surface during the commissioning or operation of the coating equipment. Utility Model Content

[0004] The main purpose of the present application is to provide a detection device and a coating device to solve the problem that the horizontal detection instrument in the prior art cannot detect the deformation of the film material surface.

[0005] According to one aspect of the present application, a detection device is provided for detecting the deformation amount of a surface of a film to be detected, comprising:

[0006] A frame, wherein the frame has a cavity, and the cavity is at least used to install a bearing assembly that bears the film to be tested;

[0007] A driving mechanism, wherein the driving mechanism is arranged on the frame;

[0008] A detection mechanism, wherein the detection mechanism is arranged on the driving mechanism and reciprocates along the first direction under the drive of the driving mechanism, the detection mechanism comprises a mounting seat, a rotating shaft, a detection rod, a detection head, a pressure detection element and an elastic component, the rotating shaft is arranged on the frame and extends along the first direction, the detection rod can move along the length direction of the rotating shaft and can rotate around the rotating shaft, the pressure detection element and the elastic component are arranged on the mounting seat, the elastic component abuts against the detection rod, the pressure detection element is used to detect the pressure exerted on the elastic component, and the detection head is arranged at one end of the detection rod away from the mounting seat and in contact with the surface of the film to be tested.

[0009] Further, the mounting seat has a first cavity, the elastic component is arranged in the first cavity, the elastic component includes a push rod and an elastic element, one end of the push rod protrudes from the first cavity and abuts against the detection rod, the push rod has a limiting ring, the elastic element is sleeved on the push rod, and one end of the elastic element abuts against the limiting ring, and the other end of the elastic element abuts against the inner wall of the first cavity.

[0010] Furthermore, a second cavity is provided on the mounting seat, and the detection rod includes a first detection section and a second detection section, the first detection section is fixedly connected to the second detection section, the first detection section is passed through the second cavity and abuts against the push rod, a mounting hole is provided in the middle of the second detection section, the second detection section is sleeved on the rotating shaft through the mounting hole, and the detection head is provided at an end of the second detection section away from the first detection section.

[0011] Furthermore, the distance between one end of the second detection section close to the detection head and the mounting hole is L1, and the distance between one end of the second detection section away from the detection head and the mounting hole is L2, wherein L1 and L2 satisfy the relationship L1:L2=(3~8):1.

[0012] Furthermore, a linear bearing and a rolling bearing are arranged in the mounting hole, the linear bearing is sleeved on the rotating shaft, and the rolling bearing is sleeved on the linear bearing.

[0013] Furthermore, a connecting ring is provided between the linear bearing and the rolling bearing, and the connecting ring is connected to the outer ring of the linear bearing and the inner ring of the rolling bearing.

[0014] Furthermore, the driving mechanism comprises:

[0015] A transmission rod, the transmission rod comprises at least one transmission rod, the at least one transmission rod is rotatably disposed on the frame and extends along the first direction, the mounting seat is sleeved on the transmission rod, and one of the transmission rod and the mounting seat is provided with a threaded section, and the other of the two is provided with a threaded hole adapted to the threaded section;

[0016] A driving member is disposed on the frame and is drivingly connected to the transmission rod to drive the transmission rod to rotate, thereby driving the mounting seat to reciprocate along the first direction.

[0017] Furthermore, the detection head is a universal ball.

[0018] Furthermore, the detection device also includes a controller and a data processor, the pressure detection element and the driving element are both electrically connected to the controller, and the data processor is used to process the signal transmitted by the pressure detection element.

[0019] On the other hand, the present application also provides a coating device, which includes the above-mentioned detection device.

[0020] In the present application, when the detection device is actually used, the bearing assembly that bears the film to be tested can be installed in the cavity of the frame, and then the film to be tested is placed on the bearing assembly, and then the detection head is placed on the surface of the film to be tested. When the detection head detects that the surface of the film to be tested has a protrusion, the end of the detection rod close to the detection head will rise, thereby driving the end of the detection rod away from the detection head to swing, so that the detection rod is away from the elastic component. At this time, the detection rod is not in contact with the elastic component, and the pressure detection element detects that the pressure on the elastic component has changed and collects this change; when the detection head detects that the surface of the film to be tested has collapsed, the end of the detection rod close to the detection head will drop, thereby driving the end of the detection rod away from the detection head to swing, so that the detection rod applies a greater abutment force to the elastic component. At this time, the pressure detection element detects that the pressure on the elastic component has changed and collects this change.

[0021] Compared with the structure of the detection device in the prior art, the detection device of the present application adopts the lever principle, so that when the detection head detects that the surface of the film to be tested has a bulge or collapse, the rotating shaft can be used as the lever support point, and the detection rod can be used to change the pressure on the elastic component, ultimately realizing the detection of deformation of the film surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 A schematic structural diagram of a first embodiment of a detection device disclosed in an embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the structure of the first embodiment of the detection device disclosed in the embodiments of the present application during detection;

[0025] Figure 3 A schematic diagram of the structure of a second embodiment of the detection device disclosed in the embodiments of the present application;

[0026] Figure 4 A schematic diagram of the structure of the second embodiment of the detection device disclosed in the embodiments of the present application during detection;

[0027] Figure 5 It is a top view of the detection device disclosed in the embodiment of the present application.

[0028] The above drawings include the following reference numerals:

[0029] 10. Frame; 101. Cavity; 20. Driving mechanism; 21. Transmission rod; 22. Driving member; 30. Detection mechanism; 31. Mounting seat; 311. First cavity; 312. Second cavity; 32. Rotating shaft; 33. Detection rod; 331. First detection section; 332. Second detection section; 3321. Mounting hole; 34. Detection head; 35. Pressure detection element; 36. Elastic component; 361. Push rod; 3611. Limiting ring; 362. Elastic component; 40. Linear bearing; 50. Rolling bearing; 60. Connecting ring; 70. Film to be tested; 80. Load-bearing component. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0033] As mentioned in the background technology, the existing horizontal detection instrument is difficult to detect in a space where the roller system is very dense, and the horizontal detection instrument cannot obtain the tension state or relaxation state of the film material based on the roller system support movement state, which is easy to affect the base film's roller adhesion during the coating process, and the film material will have wrinkles, bulging and other defects during the winding process. Therefore, in order to detect the deformation of the film surface during the operation of the coating equipment, the inventor of this application has designed a new detection device, which will be described in detail below.

[0034] It should be noted that the first direction in this application is the attached Figure 5 The direction indicated by the letter X is perpendicular to the film transmission direction; the height direction of the mounting seat is Figure 1 and attached Figure 3 The direction indicated by the letter Y.

[0035] See also Figures 1 to 5 As shown, the present application provides a detection device for detecting the deformation amount of the surface of a film 70 to be detected. The detection device includes a frame 10, a driving mechanism 20 and a detection mechanism 30.

[0036] Among them, the frame 10 has a cavity 101, and the cavity 101 is at least used to install a bearing component 80 that carries the film 70 to be tested; the driving mechanism 20 is arranged on the frame 10; the detection mechanism 30 is arranged on the driving mechanism 20, and reciprocates along the first direction under the drive of the driving mechanism 20. The detection mechanism 30 includes a mounting seat 31, a rotating shaft 32, a detection rod 33, a detection head 34, a pressure detection element 35 and an elastic component 36. The rotating shaft 32 is arranged on the frame 10 and extends along the first direction. The detection rod 33 can move along the length direction of the rotating shaft 32 and can rotate around the rotating shaft 32. The pressure detection element 35 and the elastic component 36 are arranged on the mounting seat 31. The elastic component 36 abuts against the detection rod 33. The pressure detection element 35 is used to detect the pressure exerted on the elastic component 36. The detection head 34 is arranged at one end of the detection rod 33 away from the mounting seat 31 and contacts with the surface of the film 70 to be tested.

[0037] In this embodiment, the detection mechanism 30 includes a mounting seat 31, a rotating shaft 32, a detection rod 33, a detection head 34, a pressure detection element 35 and an elastic component 36. When the detection device is actually manufactured, the driving mechanism 20 and the rotating shaft 32 can be mounted on the frame 10, and then the mounting seat 31 with the pressure detection element 35 and the elastic component 36 can be mounted on the driving mechanism 20, and one end of the detection rod 33 away from the detection head 34 is abutted against the elastic component 36, and the detection rod 33 is mounted on the rotating shaft 32. At this time, the detection rod 33 can move along the length direction of the rotating shaft 32 and can rotate around the rotating shaft 32.

[0038] That is to say, when the detection device is actually used, the bearing assembly 80 that bears the film 70 to be detected can be installed in the cavity 101 of the frame 10, and then the film 70 to be detected is placed on the bearing assembly 80, and then the detection head 34 is placed on the surface of the film 70 to be detected. At this time, since the detection head 34 has gravity, the surface of the film 70 to be detected will provide support force for the detection head 34, so that the detection head 34 will not be displaced in the direction of gravity, thereby not driving the detection rod 33 to rotate around the shaft 32, and further not changing the magnitude of the pressure applied by the measuring rod to the elastic component 36. At this time, the pressure detected by the pressure detection element 35 on the elastic component 36 can be marked as 0. Since there are defects such as protrusions or collapses on the surface of the film 70 to be detected, the driving mechanism 20 can be turned on during the transmission process of the film 70 to be detected or in a stationary state, so as to drive the detection mechanism 30 to reciprocate along the first direction, thereby driving the detection rod 33 to move along the length direction of the shaft 32, and further driving the measuring head to move along the width direction of the film 70 to be detected on the surface of the film 70 to be detected. During this process, since the detection rod 33 can rotate around the rotating shaft 32, when the detection head 34 detects that the surface of the film 70 to be tested has a protrusion, the end of the detection rod 33 close to the detection head 34 will rise, thereby driving the end of the detection rod 33 away from the detection head 34 to swing, so that the detection rod 33 is away from the elastic component 36. At this time, the detection rod 33 is not in contact with the elastic component 36, and the pressure detection element 35 detects that the pressure on the elastic component 36 has changed and collects the change; when the detection head 34 detects that the surface of the film 70 to be tested has collapsed, the end of the detection rod 33 close to the detection head 34 will drop, thereby driving the end of the detection rod 33 away from the detection head 34 to swing, so that the detection rod 33 applies a larger abutment force to the elastic component 36. At this time, the pressure detection element 35 detects that the pressure on the elastic component 36 has changed and collects the change.

[0039] Compared with the structure of the detection device in the prior art, the detection device of the present application adopts the lever principle, so that when the detection head 34 detects that the surface of the film 70 to be tested has a bulge or collapse, the rotating shaft 32 can be used as a lever support point, and the detection rod 33 is used to change the pressure on the elastic component 36, ultimately realizing the detection of deformation of the film surface.

[0040] Specifically, the pressure detection element 35 in the present application is a pressure sensor.

[0041] Further, see Figures 1 to 4As shown, the mounting seat 31 in this embodiment has a first cavity 311, and the elastic component 36 is arranged in the first cavity 311. The elastic component 36 includes a push rod 361 and an elastic element 362. One end of the push rod 361 protrudes from the first cavity 311 and abuts against the detection rod 33. The push rod 361 has a limit ring 3611. The elastic element 362 is sleeved on the push rod 361, and one end of the elastic element 362 abuts on the limit ring 3611, and the other end of the elastic element 362 abuts on the inner wall of the first cavity 311. It can be understood that the elastic component 36 in this application includes a proximity switch or a spring, etc., and the attachment of this embodiment Figure 1 The figure shows the case where the elastic component 36 is a spring. In this embodiment, the limiting ring 3611 on the push rod 361 can not only limit the spring, but also prevent the push rod 361 from falling off from the first cavity 311.

[0042] Specifically, Figure 1 To Attachment Figure 4 The state shown can be the initial state of the detection device, at this time, the detection head 34 is in contact with the film to be detected 70, and the film to be detected 70 gives the detection head 34 a supporting force, and the end of the abutting rod 361 close to the spring has a certain distance from the first cavity 311, so that at least a part of the spring is compressed. In specific detection, when the surface of the film to be detected 70 has a protrusion, the end of the detection rod 33 close to the detection head 34 will rise, thereby driving the end of the detection rod 33 away from the detection head 34 to swing, so that the detection rod 33 is away from the abutting rod 361, at this time, the detection rod 33 is not in contact with the abutting rod 361, and the spring is not compressed, so that the spring is extended; when the detection head 34 detects that the surface of the film to be detected 70 has a collapse, the end of the detection rod 33 close to the detection head 34 will fall, thereby driving the end of the detection rod 33 away from the detection head 34 to swing, so that the detection rod 33 applies a greater abutment force to the elastic component 36, and at this time, the spring is further compressed.

[0043] Further, see Figures 1 to 5As shown, a second cavity 312 is provided on the mounting seat 31 in this embodiment, and the detection rod 33 includes a first detection section 331 and a second detection section 332, the first detection section 331 is fixedly connected to the second detection section 332, the first detection section 331 is passed through the second cavity 312 and abuts against the push rod 361, a mounting hole 3321 is provided in the middle of the second detection section 332, the second detection section 332 is sleeved on the rotating shaft 32 through the mounting hole 3321, and the detection head 34 is provided at one end of the second detection section 332 away from the first detection section 331. Optionally, the second cavity 312 of the present embodiment is arranged through along the height direction of the mounting seat 31, and along the height direction of the mounting seat 31, the two opposite ends of the mounting seat 31 have a long strip opening extending along the second direction (perpendicular to the first direction), the two long strip openings are connected to the second cavity 312, the first detection section 331 of the detection rod 33 penetrates from the lower long strip opening and passes out from the upper long strip opening, and the first detection section 331 and the upper long strip opening adopt a sliding engagement. In this way, when the detection head 34 detects a bulge on the surface of the film 70 to be tested and rises or detects a collapse and falls, the second detection section 332 can use the rotating shaft 32 as a lever support point and rotate around the rotating shaft 32. In this process, the rotation of the second detection section 332 drives the first detection section 331 to swing in the second cavity 312, thereby driving the first detection section 331 away from the abutting rod 361 or close to the abutting rod 361, thereby changing the deformation of the spring, and finally achieving the measurement of the surface deformation of the film. That is to say, the cooperation between the second cavity 312 and the long strip opening can provide the first detection section 331 with sufficient swing space in the second cavity 312 .

[0044] Further, see Figure 1 and Figure 3As shown, in this embodiment, the distance between the end of the second detection section 332 close to the detection head 34 and the mounting hole 3321 is L1, and the distance between the end of the second detection section 332 far from the detection head 34 and the mounting hole 3321 is L2, wherein L1 and L2 satisfy the relationship L1:L2=(3~8):1, for example, L1:L2=3:1, 4:1, 5:1, 6:1, 7:1, 8:1. According to the lever principle, it can be known that power×power arm=resistance×resistance arm, wherein a lever with a power arm longer than the resistance arm is called a labor-saving lever; a lever with a power arm shorter than the resistance arm is called a labor-consuming lever; and a lever with equal power arm and resistance arm is called an equal-arm lever. In this embodiment, L1 is the power arm, L2 is the resistance arm, and L1>L2. In this way, when the detection head 34 has a relatively small displacement change on the surface of the film 70 to be tested (the protrusion is detected to rise, and the collapse is detected to fall), the displacement change is transmitted to the first detection section 331 through the rotating shaft 32, and the first detection section 331 can perform a large displacement deflection in the second cavity 312, thereby applying different forces to the elastic component 36. When the pressure detection element 35 detects that the pressure of the elastic component 36 has changed, the pressure detection element 35 will output a signal of the pressure change, and finally a schematic diagram of the change in the pressure size or position height difference of the detection head 34 on the surface of the film 70 to be tested along the first direction can be obtained.

[0045] Further, see Figure 1 to Figure 2 As shown, in one embodiment of the present application, a linear bearing 40 and a rolling bearing 50 are arranged in the mounting hole 3321, the linear bearing 40 is sleeved on the rotating shaft 32, and the rolling bearing 50 is sleeved on the linear bearing 40. The existence of the linear bearing 40 can support and bear the load for the detection rod 33. In this embodiment, the inner ring of the linear bearing 40 is sleeved on the rotating shaft 32, which is conducive to the movement of the detection rod 33 along the length direction of the rotating shaft 32. In this embodiment, the inner ring of the rolling bearing 50 is sleeved on the outer ring of the linear bearing 40, and the outer ring of the rolling bearing 50 is embedded in the mounting hole 3321. Such a setting can reduce the friction force when the rotating connection between the detection rod 33 and the rotating shaft 32 rotates, on the one hand, reducing wear and ensuring measurement accuracy; on the other hand, it makes the transmission sensitive and ensures detection accuracy.

[0046] Further, see Figure 3 to Figure 4 As shown, in another embodiment of the present application, a connecting ring 60 is provided between the linear bearing 40 and the rolling bearing 50, and the connecting ring 60 is connected to the outer ring of the linear bearing 40 and the inner ring of the rolling bearing 50. Such a configuration can enhance the connection strength between the linear bearing 40 and the rolling bearing 50, and to a certain extent prevent the rolling bearing 50 from falling off during the detection process.

[0047] Further, see Figure 1 as well as Figure 5 As shown, the driving mechanism 20 in this embodiment includes a transmission rod 21 and a driving member 22. The transmission rod 21 includes at least one, at least one transmission rod 21 is rotatably arranged on the frame 10 and extends along the first direction, the mounting seat 31 is sleeved on the transmission rod 21, and one of the transmission rod 21 and the mounting seat 31 is provided with a threaded section, and the other of the two is provided with a threaded hole adapted to the threaded section; the driving member 22 is arranged on the frame 10 and drivingly connected with the transmission rod 21 to drive the transmission rod 21 to rotate, thereby driving the mounting seat 31 to reciprocate along the first direction.

[0048] Optionally, the transmission rod 21 in the present application may include one, two, three or more than three. Figure 1 To Attachment Figure 4 The case where there are two transmission rods 21 is shown.

[0049] Optionally, the present application can set a threaded segment on the transmission rod 21 and set a threaded hole on the mounting seat 31, or set a threaded hole on the transmission rod 21 and set a threaded segment on the mounting seat 31, so as to realize the movement of the mounting seat 31 on the transmission rod 21. The specific setting method is not specifically limited in this application.

[0050] Specifically, the driving member 22 in the present application is a driving motor.

[0051] That is to say, in this embodiment, two transmission rods 21 are arranged on the frame 10 at intervals along the height direction of the mounting seat 31, and the two opposite ends of one of the two transmission rods 21 are rotatably connected to the frame 10, and one end of the other of the two transmission rods 21 is rotatably connected to the frame 10, and the driving motor is drivingly connected to the other end to drive the transmission rod 21 to rotate. Since the installation box is sleeved on the transmission rod 21, and the installation box and the transmission rod 21 are threadedly connected, when the driving motor is turned on, the driving motor drives the transmission rod 21 to rotate, and the rotation of the transmission rod 21 drives the installation box to reciprocate along the first direction, thereby driving the detection rod 33 to move along the length direction of the rotating shaft 32, and then driving the detection head 34 to move on the surface of the film 70 to be tested along the width direction of the film 70 to be tested, so as to detect the surface quality of the film.

[0052] Furthermore, the detection head 34 in this embodiment is a universal ball. Driven by the detection rod 33, the universal ball can slide freely on the surface of the film 70 to be tested along the width direction of the film 70 to be tested, thereby reducing the friction between the detection head 34 and the film, and thus will not damage the surface of the film, effectively ensuring the surface quality of the film. If the detection head 34 is not a universal ball, when the detection head 34 detects that the surface of the film 70 to be tested has a bulge or collapse, the detection head 34 can only roll in the width direction of the film 70 to be tested, but cannot roll in the transmission direction of the film 70 to be tested, which increases the friction between the detection head 34 and the film, thereby affecting the surface quality of the film.

[0053] Specifically, the universal ball and the detection rod 33 in this embodiment can be connected in a snap-fit ​​manner.

[0054] Furthermore, the detection device in this embodiment also includes a controller and a data processor (not shown in the drawings), the pressure detection element 35 and the driving member 22 are both electrically connected to the controller, and the data processor is used to process the signal transmitted by the pressure detection element 35.

[0055] On the other hand, the present application also provides a coating device, which includes the above-mentioned detection device. Therefore, the coating device includes all the technical effects of the above-mentioned detection device. Since the technical effects of the detection device have been described in detail above, they will not be repeated here.

[0056] On the other hand, the present application also provides a detection method, which is performed using the above-mentioned detection device. Therefore, the detection method includes all the technical effects of the above-mentioned detection device. Since the technical effects of the detection device have been described in detail above, they will not be repeated here.

[0057] Furthermore, the detection method in this embodiment includes:

[0058] Step S1: using a controller to control the detection mechanism 30 to reciprocate along a first direction at a predetermined speed;

[0059] Step S2: using the controller to control the pressure detection element 35 to detect the pressure on the elastic element 362 at a predetermined time interval;

[0060] Step S3: using a data processor to process the data collected by the pressure detection element 35 and output a schematic diagram of pressure changes.

[0061] It should be noted that the predetermined speed and the predetermined time interval in the present application can be set according to actual detection requirements, and the present application does not make any specific limitations thereto.

[0062] The present application first sets the predetermined moving speed of the detection mechanism 30 in the controller. Since the controller is electrically connected to the driving member 22, the moving speed can be achieved by driving the driving member 22 to drive the transmission rod 21 to rotate, thereby driving the detection mechanism 30 to move along the first direction. During the specific detection, when the surface of the film 70 to be tested has a protrusion, the end of the detection rod 33 close to the detection head 34 will rise, thereby driving the end of the detection rod 33 away from the detection head 34 to deflect, so that the detection rod 33 is away from the abutting rod 361. At this time, the detection rod 33 is not in contact with the abutting rod 361, and the spring is not compressed, so that the spring is extended; when the detection head 34 detects that the surface of the film 70 to be tested has a collapse, the end of the detection rod 33 close to the detection head 34 will fall, thereby driving the end of the detection rod 33 away from the detection head 34 to deflect, so that the detection rod 33 applies a greater abutment force to the elastic component 36, and at this time, the spring is further compressed. The compression or extension of the spring causes the pressure detection element 35 to detect a change in the pressure on the elastic element 362. At this time, the pressure detection element 35 will collect the pressure change and transmit the pressure change signal to the data processor, which processes the signal. After the detection is completed, the data processor finally draws a curve chart of the pressure change to indicate whether the surface of the film 70 to be tested has defects such as bulges or collapses. It should be noted that the detection device in this application is online detection during actual use, that is, the bulges or collapses on the surface of the film 70 to be tested are detected in real time and feedback is given in real time.

[0063] In addition, the detection device in the present application can also detect the parallelism of the bearing assembly 80 that carries the film 70 to be tested. Specifically, the bearing assembly 80 is a plurality of rollers, and two adjacent rollers are arranged at intervals so that the film 70 to be tested is wound around the two rollers. When the two rollers are parallel, when the detection head 34 moves along the first direction on the surface of the film 70 to be tested, the detection rod 33 will not be deflected, so that the spring will not be compressed or stretched. During this process, the pressure detected by the pressure detection element 35 at different time points always remains consistent, and finally the data processor outputs a straight line graph without fluctuations; when the two rollers are not parallel, the detection head 34 will drop or rise on the surface of the film 70 to be tested, so that the spring is compressed or stretched. During this process, the pressure detected by the pressure detection element 35 at different time points changes, and finally the data processor outputs a fluctuating curve graph.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0065] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0066] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detection device for detecting the deformation amount of the surface of a film (70) to be detected, characterized in that: include: A frame (10), the frame (10) having a cavity (101), the cavity (101) being used at least to install a bearing assembly (80) that bears the film (70) to be tested; A driving mechanism (20), wherein the driving mechanism (20) is arranged on the frame (10); A detection mechanism (30), the detection mechanism (30) is arranged on the driving mechanism (20) and reciprocates along a first direction under the drive of the driving mechanism (20), the detection mechanism (30) comprises a mounting seat (31), a rotating shaft (32), a detection rod (33), a detection head (34), a pressure detection element (35) and an elastic component (36), the rotating shaft (32) is arranged on the frame (10) and extends along the first direction, the detection rod (33) can be moved along the rotating shaft (3 2) and can rotate around the rotating shaft (32), the pressure detecting element (35) and the elastic component (36) are arranged on the mounting seat (31), the elastic component (36) is in contact with the detecting rod (33), the pressure detecting element (35) is used to detect the pressure exerted on the elastic component (36), and the detecting head (34) is arranged at one end of the detecting rod (33) away from the mounting seat (31) and in contact with the surface of the film (70) to be tested.

2. The detection device according to claim 1, characterized in that: The mounting seat (31) has a first cavity (311), and the elastic component (36) is arranged in the first cavity (311). The elastic component (36) includes a push rod (361) and an elastic element (362). One end of the push rod (361) protrudes from the first cavity (311) and abuts against the detection rod (33). The push rod (361) has a limiting ring (3611). The elastic element (362) is sleeved on the push rod (361), and one end of the elastic element (362) abuts against the limiting ring (3611), and the other end of the elastic element (362) abuts against the inner wall of the first cavity (311).

3. The detection device according to claim 2, characterized in that: The mounting seat (31) is provided with a second cavity (312), the detection rod (33) comprises a first detection section (331) and a second detection section (332), the first detection section (331) and the second detection section (332) are fixedly connected, the first detection section (331) is passed through the second cavity (312) and abuts against the abutting rod (361), a mounting hole (3321) is provided in the middle of the second detection section (332), the second detection section (332) is sleeved on the rotating shaft (32) through the mounting hole (3321), and the detection head (34) is arranged at one end of the second detection section (332) away from the first detection section (331).

4. The detection device according to claim 3, characterized in that: The distance between one end of the second detection section (332) close to the detection head (34) and the mounting hole (3321) is L1, and the distance between one end of the second detection section (332) far from the detection head (34) and the mounting hole (3321) is L2, wherein L1 and L2 satisfy the relationship L1:L2=(3-8):

1.

5. The detection device according to claim 3 or 4, characterized in that: A linear bearing (40) and a rolling bearing (50) are arranged in the mounting hole (3321); the linear bearing (40) is sleeved on the rotating shaft (32), and the rolling bearing (50) is sleeved on the linear bearing (40).

6. The detection device according to claim 5, characterized in that: A connecting ring (60) is provided between the linear bearing (40) and the rolling bearing (50), and the connecting ring (60) is connected to the outer ring of the linear bearing (40) and the inner ring of the rolling bearing (50).

7. The detection device according to claim 1 or 2 or 3 or 4 or 6, characterized in that: The driving mechanism (20) comprises: A transmission rod (21), the transmission rod (21) comprising at least one transmission rod (21), the at least one transmission rod (21) being rotatably disposed on the frame (10) and extending along the first direction, the mounting seat (31) being sleeved on the transmission rod (21), and one of the transmission rod (21) and the mounting seat (31) being provided with a threaded section, and the other of the transmission rod (21) and the mounting seat (31) being provided with a threaded hole matched with the threaded section; A driving member (22), wherein the driving member (22) is disposed on the frame (10) and is drivingly connected to the transmission rod (21) to drive the transmission rod (21) to rotate, thereby driving the mounting seat (31) to reciprocate along the first direction.

8. The detection device according to claim 1 or 2 or 3 or 4 or 6, characterized in that: The detection head (34) is a universal ball.

9. The detection device according to claim 7, characterized in that: The detection device further comprises a controller and a data processor. The pressure detection element (35) and the driving member (22) are both electrically connected to the controller. The data processor is used to process the signal transmitted by the pressure detection element (35).

10. A coating device, characterized in that: The coating equipment comprises the detection device according to any one of claims 1 to 9.

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