Membrane cleaning mechanism and membrane detection equipment

Abstract

The utility model discloses a diaphragm cleaning mechanism and diaphragm detection equipment, comprising: a first brush assembly comprising a brush arranged along a transmission path of a diaphragm to clean the surface of the diaphragm being transmitted; the cleaning pressing wheel assembly at least comprises a pressing wheel capable of rotating around the axis of the pressing wheel, the pressing wheel is located in the conveying direction of the membrane and located on the downstream portion of the first brush assembly, the axis of the pressing wheel is perpendicular to the conveying direction of the membrane, and the pressing wheel is arranged to be located above a downstream conveying device. And the pressing device is used for pressing the diaphragm conveyed from the upstream conveying device onto the downstream conveying device. According to the utility model, before detection of the detection equipment, the membrane can be cleaned through the membrane cleaning mechanism to remove impurities on the surface of the membrane, so that the influence of the impurities on the surface of the membrane on the detection yield is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a diaphragm cleaning mechanism and diaphragm detection equipment. Background Art

[0002] Reflective sheet is an important component of display devices, mainly used to improve the viewing effect of display devices (such as TVs). This reflective sheet can reduce reflection, making the TV screen display clearer and the brightness more uniform. At the same time, it can also protect the viewer's eyes, avoid direct light exposure to the eyes, and reduce visual fatigue.

[0003] During the production process of reflective sheets, its detection (such as defect detection of scratches on the reflective sheet surface) is an important part of ensuring the performance of display devices such as televisions. At present, when detecting reflective sheets such as defect detection, the reflective sheet is a membrane with many through holes, which requires some processes to cut to form such a porous membrane structure. However, during the process, the columnar materials cut in some through holes are not easy to fall off. Therefore, before the membrane is inspected, the columnar materials remaining in the through holes of the reflective sheet need to be cleaned out, and because there may be impurities such as debris left on the surface, these impurities will affect the inspection yield of subsequent inspection processes.

[0004] Therefore, how to reduce the impact of impurities and the like on the detection yield is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a membrane cleaning mechanism to reduce the impact of impurities on the detection yield;

[0006] Another object of the utility model is to provide a diaphragm detection device having the diaphragm cleaning mechanism.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A diaphragm cleaning mechanism, comprising:

[0009] A first brush assembly, comprising a brush, wherein the brush is arranged along a transmission path of the diaphragm to clean a surface of the diaphragm being transmitted;

[0010] The cleaning pressure wheel assembly at least includes a pressure wheel that can rotate around its own axis, the pressure wheel is located in the transmission direction of the diaphragm and downstream of the first brush assembly, the axis of the pressure wheel is perpendicular to the transmission direction of the diaphragm, and the pressure wheel is configured to be located above the downstream conveying device, and is used to press the diaphragm transmitted from the upstream conveying device onto the downstream conveying device.

[0011] Optionally, in the above-mentioned membrane cleaning mechanism, the membrane cleaning mechanism is arranged between the upstream transmission device and the downstream transmission device;

[0012] The brush assembly is composed of a plurality of brush groups, the brush groups at least comprising an upper brush and a lower brush arranged opposite to each other, the first brush assembly further comprising a brush driving device for driving the upper brush and the lower brush to move toward the diaphragm, and the diaphragm is configured to pass between the upper brush and the lower brush;

[0013] The upper brush and the lower brush are configured to be driven by the brush driving device to switch between a cleaning position and a preparation position;

[0014] When in the cleaning position, the upper brush and the lower brush are in contact with the upper and lower surfaces of the diaphragm respectively;

[0015] When in the preparation position, the upper brush and the lower brush are separated from the upper and lower surfaces of the diaphragm respectively.

[0016] Optionally, in the above-mentioned diaphragm cleaning mechanism, the upper brush and the lower brush of the same brush group are located in the same plane in the driving direction of the brush driving device; and / or,

[0017] The first brush assembly comprises at least two groups of brush groups arranged at intervals along the transmission direction of the diaphragm, and the upper brushes of each brush group are arranged in parallel, and the lower brushes of each brush group are arranged in parallel.

[0018] Optionally, the above-mentioned diaphragm cleaning mechanism further includes a cleaning transition plate located between the first brush assembly and the cleaning pressure wheel assembly, and the cleaning transition plate is used to support the diaphragm.

[0019] Optionally, in the above-mentioned film cleaning mechanism, the cleaning pressure wheel assembly further comprises a pressure wheel lifting drive device, and the pressure wheel lifting drive device is used to drive the pressure wheel to switch between a pressing position and a free position;

[0020] When in the pressing position, the height position of the pressing wheel is a position capable of pressing against the diaphragm and allowing the diaphragm to continue to be transported along the transport path;

[0021] When in the clearing position, the height position of the pressure wheel is a position capable of avoiding the diaphragm.

[0022] Optionally, in the above-mentioned diaphragm cleaning mechanism, it further includes: a cleaning sensing device and a controller;

[0023] The cleaning sensing device is arranged between the cleaning pressure wheel assembly and the first brush assembly along the transmission direction, and is used to detect whether there is the diaphragm at a preset position on the cleaning transition plate, and send the detection result to the controller;

[0024] The controller is used to control the brush drive device and the pressure wheel lifting drive device to operate when the detection result indicates that there is a diaphragm and the diaphragm is located below the pressure wheel, so that the upper brush and the lower brush are in the cleaning position and the pressure wheel is in the pressing position.

[0025] Optionally, in the above-mentioned diaphragm cleaning mechanism, the controller is also used to control the operation of the brush drive device and the pressure wheel lifting drive device when the diaphragm is transported away from under the pressure wheel, so that the upper brush and the lower brush are in the ready position and the pressure wheel is in the out of the way position.

[0026] Optionally, in the above-mentioned membrane cleaning mechanism, it further comprises a second brush assembly moving with the pressing wheel, and the second brush assembly is arranged between the pressing wheel and the first brush assembly along the transmission direction;

[0027] When the pressing wheel is in the pressing position, the second brush assembly contacts the upper surface of the diaphragm on the cleaning transition plate;

[0028] When the pressure wheel is in the away position, the second brush assembly is separated from the upper surface of the diaphragm on the cleaning transition plate.

[0029] Optionally, in the above-mentioned film cleaning mechanism, the pressure wheels are multiple and arranged at intervals, and the arrangement direction of each of the pressure wheels is perpendicular to the transmission direction of the film.

[0030] Optionally, in the above-mentioned membrane cleaning mechanism, it also includes:

[0031] An impurity receiving box, wherein the impurity receiving box is arranged directly below the first brush assembly and the cleaning pressure wheel assembly;

[0032] A foreign matter guide is used to guide the cleaned foreign matter to the foreign matter receiving box.

[0033] The diaphragm cleaning mechanism provided by the utility model is provided with a first brush assembly and a cleaning pressure wheel assembly in sequence along the transmission path. The diaphragm is transported by the upstream transmission device and passes through the diaphragm cleaning mechanism. Since the first brush assembly is arranged on the transmission path of the diaphragm, the diaphragm can be cleaned by the first brush assembly when passing through the first brush assembly along the transmission path to remove impurities on the surface of the diaphragm or columnar materials in the through hole of the diaphragm. As the diaphragm continues to be transported downstream, the transport force of the upstream transmission device on the diaphragm is gradually weakened. When the diaphragm is transported to the bottom of the pressure wheel of the cleaning pressure wheel assembly, the pressure wheel presses the diaphragm onto the downstream conveying device to increase the conveying force of the downstream conveying device on the diaphragm, and the diaphragm is continuously transported downstream through the downstream conveying device.

[0034] The utility model can clean the diaphragm by the diaphragm cleaning mechanism before the detection equipment is detected, so as to remove impurities on the surface of the diaphragm, thereby reducing the influence of impurities on the surface of the diaphragm on the detection yield.

[0035] A diaphragm detection device comprises a feeding transmission line, a diaphragm cleaning mechanism and a detection line, wherein the diaphragm cleaning mechanism is the diaphragm cleaning mechanism as described in any one of the above items.

[0036] Optionally, in the above-mentioned diaphragm detection device, the diaphragm cleaning mechanism is arranged at the end of the feeding transmission line;

[0037] A centering positioning module is installed on the feeding transmission line, and the centering positioning module is used to center the diaphragm.

[0038] Optionally, in the above-mentioned diaphragm detection device, the centering positioning module includes:

[0039] Fixed bottom plate;

[0040] A synchronous belt system, arranged on the fixed base plate;

[0041] There are two positioning movable parts, and one of the positioning movable parts is fixedly connected to the synchronous belt on one side of the synchronous belt system, and the other positioning movable part is fixedly connected to the synchronous belt on the other side of the synchronous belt system. A positioning column is provided on the positioning movable part, and the positioning column extends outward from the upper surface of the feeding transmission line.

[0042] The diaphragm detection device provided by the utility model has the above-mentioned diaphragm cleaning mechanism, and therefore has all the technical effects of the above-mentioned diaphragm cleaning mechanism, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A schematic diagram of the structure of a membrane cleaning mechanism at an angle provided by an embodiment of the utility model;

[0045] Figure 2 A schematic diagram of the structure of a diaphragm cleaning mechanism from another angle provided by an embodiment of the utility model;

[0046] Figure 3 A side view of a membrane cleaning mechanism provided by an embodiment of the utility model;

[0047] Figure 4 A front view of the diaphragm cleaning mechanism provided by the embodiment of the utility model without the cleaning pressure wheel assembly;

[0048] Figure 5 An assembly diagram of a feeding transmission line, a diaphragm cleaning mechanism and a centering positioning module provided in an embodiment of the utility model;

[0049] Figure 6 for Figure 5 A front view of

[0050] Figure 7 A schematic diagram of the structure of a centering positioning module provided in an embodiment of the utility model;

[0051] Figure 8 A side view of a centering positioning module provided in an embodiment of the utility model;

[0052] Fig. 9 This is a diagram of the connection between the feeding transmission line and the detection line provided in an embodiment of the utility model.

[0053] The meanings of the reference numerals in the figures are as follows:

[0054] 100-diaphragm cleaning mechanism; 110-cleaning bracket; 111-impurity receiving box; 112-impurity guide; 120-cleaning pressure wheel assembly; 121-pressure wheel lifting drive device; 122-pressure wheel mounting beam; 123-pressure wheel; 130-cleaning transition plate; 140-first brush assembly; 141-upper brush lifting cylinder; 142-lower brush lifting cylinder; 143-upper brush; 144-lower brush; 145-cleaning slide rail; 150-pressure wheel lifting guide assembly; 151-pressure wheel lifting slide rail; 152-pressure wheel lifting slide seat; 160-pressure wheel limiting device; 170-second brush assembly; 180-cleaning sensing device;

[0055] 200-feeding transmission line; 201-feeding bracket; 202-electrical cabinet; 203-feeding conveyor belt; 204-transmission roller; 205-start and stop button assembly; 206-material arrival sensor;

[0056] 300-centering positioning module; 301-fixed bottom plate; 302-guide rail; 303-positioning moving part; 304-guide rail slider; 305-synchronous pulley; 306-synchronous belt; 307-positioning column; 308-moving part limit block; 309-moving part limit sensor; 310-driving motor;

[0057] 400-Detection line. DETAILED DESCRIPTION

[0058] The core of the utility model is to provide a membrane cleaning mechanism to reduce the impact of impurities on the detection yield;

[0059] Another core of the utility model is to provide a diaphragm detection device having the above-mentioned diaphragm cleaning mechanism.

[0060] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0061] The reflector is an important part of the display device. Defects such as scratches on its surface will affect the quality of the reflector, so it is necessary to perform defect detection, such as scratch detection. Before defect detection, there may be impurities such as debris and stolen goods on the surface of the reflector, which will be misjudged as defects by the detection equipment, resulting in a low detection yield.

[0062] Based on the above reasons, an embodiment of the utility model discloses a diaphragm cleaning mechanism, which is used to clean the reflective sheet before detection to remove debris, dirt and other impurities on the surface of the reflective sheet, thereby reducing the problem of low detection yield caused by the presence of impurities.

[0063] It should be noted that the diaphragm cleaning mechanism disclosed in this embodiment is not limited to cleaning the reflective sheet, but is also applicable to other diaphragms that require cleaning. The following description will be made using the diaphragm as an example.

[0064] like Figure 1 and Figure 2 As shown, the diaphragm cleaning mechanism 100 disclosed in the embodiment of the utility model includes a first brush assembly 140 and a cleaning pressure wheel assembly 120. Usually, in order to facilitate the installation of the first brush assembly 140 and the cleaning pressure wheel assembly 120, a cleaning bracket 110 needs to be provided. Of course, it can be understood by those skilled in the art that the cleaning bracket 110 may not be provided, but the first brush assembly 140 and the cleaning pressure wheel assembly 120 may be provided on the structure of other equipment. For the convenience of understanding, the following description is made by taking the cleaning bracket 110 as an example.

[0065] The cleaning bracket 110 is a supporting component of the diaphragm cleaning mechanism 100, and is used to provide a mounting base for the components thereon and to realize the installation of the diaphragm cleaning mechanism 100. The shape and structure of the cleaning bracket 110 should be suitable for the installation of the components thereon, and the specific structure of the cleaning bracket 110 is not limited in this embodiment.

[0066] The first brush assembly 140 is disposed on the cleaning bracket 110 and includes a brush, wherein the brush is disposed along the transmission path of the diaphragm to clean the surface of the diaphragm being transmitted. When the diaphragm is transported to the position of the first brush assembly 140 along the transmission path, it contacts the brush of the first brush assembly 140, and as the diaphragm continues to be transported, it generates relative motion with the brush of the first brush assembly 140. Under the action of the relative motion, the brush of the first brush assembly 140 cleans the surface of the diaphragm to remove impurities on the diaphragm.

[0067] Because impurities are more easily accumulated on the upper surface of the diaphragm, the brush of the first brush assembly 140 should give priority to cleaning the upper surface of the diaphragm when cleaning the surface of the diaphragm, or it can clean both the upper and lower surfaces of the diaphragm simultaneously or separately.

[0068] The cleaning roller assembly 120 at least includes a roller 123 that can rotate around its own axis. The roller 123 does not need to be equipped with a power source. It can rotate around its own axis under the action of external force. The roller 123 is located in the transmission direction of the diaphragm and downstream of the first brush assembly 140. The axis of the roller 123 is perpendicular to the transmission direction of the diaphragm to prevent the tangent direction of the outer peripheral surface of the roller 123 from being at an angle with the conveying direction of the diaphragm, thereby deviating the diaphragm.

[0069] In specific applications, the pressure wheel 123 is configured to be located above the downstream conveying device, and is used to press the diaphragm transmitted from the upstream conveying device onto the downstream conveying device. When the diaphragm is transported to the position of the pressure wheel 123 to transition to the next device, the pressure wheel 123 can press the diaphragm onto the downstream conveying device. By pressing down the pressure wheel 123, the friction between the diaphragm and the downstream conveying device can be increased, so that the conveying device of the next device can effectively provide the conveying force of the diaphragm to drive the diaphragm to continue to be transported downstream. During the movement of the diaphragm, the pressure wheel 123 is pulled by the diaphragm and rotates around its own axis, so that the pressure wheel 123 and the diaphragm are in rolling friction, thereby preventing the pressure wheel 123 from causing damage to the surface of the diaphragm.

[0070] Before the detection device is detected, the utility model can clean the diaphragm through the diaphragm cleaning mechanism 100 to remove impurities on the surface of the diaphragm, thereby reducing the impact of impurities on the detection yield due to the presence of impurities on the surface of the diaphragm.

[0071] The diaphragm cleaning mechanism disclosed in this embodiment is arranged between the upstream transmission device and the downstream transmission device. In order to enable the first brush assembly 140 to clean both the upper and lower surfaces of the diaphragm, in this embodiment, the brush combination is a plurality of brush groups. Each brush group includes at least an upper brush 143 and a lower brush 144 arranged relatively to each other. The first brush assembly 140 also includes a brush driving device that drives the upper brush 143 and the lower brush 144 to move toward the diaphragm. The upper brush 143 and the lower brush 144 are arranged relatively to each other, and the diaphragm is configured to pass between the upper brush 143 and the lower brush 144, so that the upper brush 143 and the lower brush 144 clean the upper surface and the lower surface of the diaphragm respectively.

[0072] The upper brush 143 and the lower brush 144 can be arranged on the cleaning bracket 110 through a brush driving device, and the upper brush 143 and the lower brush 144 are configured to be driven by the brush driving device to switch between the cleaning position and the preparation position. Specifically, the brush driving device may include an upper brush lifting cylinder 141 and a lower brush lifting cylinder 142. The upper brush lifting cylinder 141 and the lower brush lifting cylinder 142 can both be fixed on the cleaning bracket 110, the cylinder rod of the upper brush lifting cylinder 141 is connected to the upper brush 143, and the cylinder rod of the lower brush lifting cylinder 142 is connected to the lower brush 144. The upper brush lifting cylinder 141 can drive the upper brush 143 to move up and down, and the corresponding lower brush lifting cylinder 142 can drive the lower brush 144 to move up and down.

[0073] The upper brush lifting cylinder 141 and the lower brush lifting cylinder 142 are used to drive the upper brush 143 and the lower brush 144 to move closer to each other or away from each other. When the upper brush 143 and the lower brush 144 are closer to each other, the upper brush 143 and the lower brush 144 can be placed in a cleaning position; correspondingly, when the upper brush 143 and the lower brush 144 are away from each other, the upper brush 143 and the lower brush 144 can be placed in a ready position.

[0074] When in the cleaning position, the upper brush 143 and the lower brush 144 are in contact with the upper and lower surfaces of the diaphragm, that is, clamping the diaphragm to clean the surface of the diaphragm. The cleaning process is that the upper brush 143 and the lower brush 144 remain stationary, and the diaphragm is transported and moved, thereby generating relative motion to achieve the cleaning action of the brush.

[0075] Since the distance between the upper brush 143 and the lower brush 144 is small, even 0 or negative, when in the cleaning position, it is difficult for the diaphragm to pass between the upper brush 143 and the lower brush 144. It should be noted that negative means that when not supported by the diaphragm, there is an intersection between the upper brush 143 and the lower brush 144, and 0 means that when not supported by the diaphragm, the upper brush 143 and the lower brush 144 are in contact with each other.

[0076] Based on the above reasons, the present embodiment adds a preparation position for the upper brush 143 and the lower brush 144, that is, when in the preparation position, the distance between the upper brush 143 and the lower brush 144 is greater than the thickness of the diaphragm, so that the upper brush 143 and the lower brush 144 can be separated from the upper and lower surfaces of the diaphragm respectively, so as to facilitate the next diaphragm to enter the area between the upper brush 143 and the lower brush 144, and then control the upper brush 143 and the lower brush 144 to enter the cleaning position to clean the diaphragm.

[0077] The upper brush 143 and the lower brush 144 of the same brush group are in the same plane in the driving direction of the brush driving device, so that the same brush group is used to clean the same position in the horizontal direction of the diaphragm, respectively cleaning the upper surface and the lower surface at the same horizontal position.

[0078] In order to improve the smoothness of the upper brush 143 and the lower brush 144 when they move up and down, as shown in FIG. Figure 4 As shown, a cleaning rail 145 is disposed on the cleaning bracket 110 , and the cleaning rail 145 can be provided as two cleaning rails 145 arranged in parallel.

[0079] The upper brush 143 and the lower brush 144 are respectively slidably matched with the cleaning slide rail 145 through the corresponding connecting beams. Specifically, the two ends of the connecting beam are respectively slidably matched with the cleaning slide rail 145 through sliders. There are two connecting beams, and the upper brush 143 and the lower brush 144 are respectively fixed on the corresponding connecting beams. The upper brush lifting cylinder 141 and the lower brush lifting cylinder 142 are respectively connected to the corresponding connecting beams to drive the upper brush 143 and the lower brush 144 to move up and down along the cleaning slide rail 145.

[0080] In order to improve the cleaning ability, the first brush assembly 140 includes at least two brush groups arranged at intervals along the transmission direction of the diaphragm, and the upper brushes 143 of each brush group are arranged in parallel, and the lower brushes 144 of each brush group are arranged in parallel. That is, in this embodiment, the upper brushes 143 can be arranged in parallel, and the corresponding lower brushes 144 should also be arranged in the same number as the upper brushes 143, and one-to-one correspondence.

[0081] Because the upper brush 143 and the lower brush 144 have a certain length, if the upper brush 143 and the lower brush 144 are tilted relative to the diaphragm, the distances between the brushes (upper brush 143 and lower brush 144) and the diaphragm at different positions will be different, which will result in different forces acting on different positions of the diaphragm, thus resulting in different cleaning effects at different positions of the diaphragm.

[0082] Based on this, in this embodiment, an adjustment hole extending in the height direction is provided on both the upper brush 143 and the lower brush 144. The number of the adjustment holes can be multiple and arranged at intervals. The fasteners are fastened to the corresponding connecting beams through the adjustment holes. By adjusting the position of the fasteners on the adjustment holes, the upper brush 143 and the lower brush 144 can be adjusted to be parallel to the diaphragm, and then the fasteners are locked. If the brushes are worn eccentrically after being used for a period of time, the fasteners and the adjustment holes can be adjusted so that the side of the brushes facing the diaphragm is parallel to the diaphragm.

[0083] like Figure 2 and Figure 3As shown, in a specific embodiment of the utility model, the diaphragm cleaning mechanism may further include a cleaning transition plate 130, and the cleaning transition plate 130 is disposed on the cleaning bracket 110. The cleaning transition plate 130 may be fixed to the cleaning bracket 110 by fasteners, and the hole for penetrating the fasteners may also be an adjustment hole extending in the height direction to adjust the height position of the cleaning transition plate 130, so as to ensure that the cleaning transition plate 130 can be adjusted to a suitable height position.

[0084] Since the diaphragm cleaning mechanism is usually installed at the end of the feeding transmission line, in order to smoothly allow the diaphragm passing through the diaphragm cleaning mechanism to smoothly transition to the downstream conveying equipment, a cleaning transition plate 130 is provided between the first brush assembly 140 and the cleaning pressure wheel assembly 120 to carry the diaphragm. In this embodiment, the diaphragm is supported by the cleaning transition plate 130, which can avoid the problem that the diaphragm sags under the action of gravity when being conveyed to the downstream conveying equipment, and cannot smoothly transition to the downstream.

[0085] In one embodiment of the utility model, the cleaning roller assembly 120 may further include a roller lifting drive device 121 disposed on the cleaning bracket 110, and the roller lifting drive device 121 is used to drive the roller 123 to switch between the pressing position and the opening position. The roller lifting drive device 121 may be a cylinder or other lifting drive device.

[0086] When the pressing wheel 123 is in the pressing position, the height position of the pressing wheel 123 is a position where it can be pressed against the diaphragm and allow the diaphragm to continue to be transported along the transport path; when the pressing wheel 123 is in the letting position, the height position of the pressing wheel 123 is a position where it can avoid the diaphragm. The utility model drives the pressing wheel 123 to perform a lifting action through the pressing wheel lifting drive device 121. When the pressing wheel 123 rises to the letting position, the diaphragm can pass under the pressing wheel 123 and remain between the pressing wheel 123 and the downstream conveying device. When the pressing wheel 123 descends to the pressing position, the pressing wheel 123 can press the diaphragm against the downstream conveying device so that the diaphragm can continue to be transported downstream through the downstream conveying device.

[0087] In order to enable the upper brush 143, the lower brush 144, and the pressure wheel 123 to automatically rise and fall according to the application scenario, so as to improve the automation of the equipment, in a specific embodiment of the utility model, a cleaning sensor 180 and a controller may be added.

[0088] Among them, the cleaning sensing device 180 is arranged between the cleaning pressure wheel assembly and the first brush assembly along the transmission direction, and is used to detect whether there is a diaphragm at a preset position on the cleaning transition plate, and send the detection result to the controller. Based on whether the cleaning sensing device 180 detects the presence of a diaphragm, the controller controls the position of the upper brush 143, the lower brush 144 and the pressure wheel 123.

[0089] Specifically, the controller is used to control the brush drive device and the pressure wheel lifting drive device 121 to operate when the detection result indicates that there is a diaphragm and the diaphragm is located below the pressure wheel 123, so that the upper brush 143 and the lower brush 144 are in the cleaning position and the pressure wheel 123 is in the pressing position. The diaphragm is below the pressure wheel 123, indicating that the head end of the diaphragm has entered the downstream conveying device. At this time, the upper brush 143 and the lower brush 144 are controlled to be in the cleaning position to clamp the diaphragm, and the pressure wheel 123 is controlled to be in the pressing position to press the head end of the diaphragm on the downstream conveying device. The downstream conveying device provides power to drive the diaphragm to continue to be conveyed downstream. During the downstream conveying process, the diaphragm is cleaned by the upper brush 143 and the lower brush 144.

[0090] In order to ensure the continuity of switching between different diaphragms, that is, to ensure that the next diaphragm can smoothly enter the cleaning position for cleaning after the previous diaphragm is cleaned, in this embodiment, the controller can also be used to control the brush drive device and the pressure wheel lifting drive device 121 when the diaphragm leaves the bottom of the pressure wheel 123, so that the upper brush 143 and the lower brush 144 are in the ready position, and the pressure wheel 123 is in the out of the way position, so that the head end of the next diaphragm can be transported to the bottom of the pressure wheel 123.

[0091] In order to ensure that the diaphragm can be smoothly transported to the downstream conveying device, the upper brush 143 and the lower brush 144 can be controlled in the cleaning position and the pressure wheel 123 can be controlled in the clamping position only when the diaphragm needs to be transported to the bottom of the pressure wheel 123. Therefore, the downstream part of the diaphragm below the upper brush 143 and the lower brush 144 will not be cleaned by the upper brush 143 and the lower brush 144, and impurities in this part cannot be removed.

[0092] Based on this, in this embodiment, on the basis of the above embodiment, a second brush assembly 170 that moves with the pressure wheel 123 can be added, and the second brush assembly 170 is arranged between the pressure wheel 123 and the first brush assembly 140 along the transmission direction. The second brush assembly 170 can clean the part between the first brush assembly 140 and the second brush assembly 170.

[0093] When the pressure wheel 123 is in the pressing position, the second brush assembly 170 contacts the upper surface of the membrane on the cleaning transition plate 130, that is, when the pressure wheel 123 presses the membrane to be cleaned, the second brush assembly 170 is also pressed on the membrane to be cleaned on the cleaning transition plate 130, and the membrane to be cleaned is cleaned during the movement of the membrane to be cleaned. Due to space limitations, the second brush assembly 170 can only be set above the cleaning transition plate 130 to clean the upper surface of the membrane to be cleaned.

[0094] When the pressing wheel 123 is in the clearing position, the second brush assembly 170 is separated from the upper surface of the diaphragm on the cleaning transition plate 130. That is, when the pressing wheel 123 clears the diaphragm to be cleaned, the second brush assembly 170 also leaves the cleaning transition plate 130 to facilitate the entry of the next diaphragm.

[0095] In this embodiment, the cleaning sensor 180 is disposed between the first brush assembly 140 and the second brush assembly 170. When the cleaning sensor 180 detects the diaphragm, the diaphragm is still a distance away from the pressing wheel 123. According to the size of the above distance and the conveying speed of the feeding conveyor line, the time for the diaphragm to continue to be conveyed can be controlled so that the diaphragm moves just below the pressing wheel 123 after a certain period of time.

[0096] Therefore, in this embodiment, when the diaphragm is detected by the cleaning sensing device 180 and the diaphragm is located under the pressure wheel 123 after a preset time, the brush driving device and the pressure wheel lifting driving device 121 are controlled to operate so that the upper brush 143 and the lower brush 144 are in the cleaning position and the pressure wheel 123 is in the pressing position; when the cleaning sensing device 180 cannot detect the diaphragm and the diaphragm leaves the bottom of the pressure wheel 123 after a preset time, the brush driving device and the pressure wheel lifting driving device 121 are controlled to operate so that the upper brush 143 and the lower brush 144 are in the ready position and the pressure wheel 123 is in the out of the way position.

[0097] In a specific embodiment of the present invention, there can be one pressing wheel 123 or multiple pressing wheels 123 arranged at intervals. When there are multiple pressing wheels 123, the arrangement direction of each pressing wheel 123 is perpendicular to the transmission direction of the membrane. In order to facilitate the installation of each pressing wheel 123, each pressing wheel 123 can be installed on a pressing wheel mounting beam 122, and the pressing wheel lifting drive device 121 can be connected to the pressing wheel mounting beam 122 to drive the pressing wheel mounting beam 122 and each pressing wheel 123 on the pressing wheel mounting beam 122 to perform lifting and lowering actions.

[0098] Since the size of the diaphragm is relatively large (the maximum product width can reach 1100 mm), if a whole pressing wheel 123 is made (i.e. only one pressing wheel 123 is provided), the following risks may occur:

[0099] 1. The long-sized pressing wheel 123 is prone to deformation, resulting in a gap (partial deformation) between the pressing wheel 123 and the contact surface of the diaphragm after the pressing wheel 123 is pressed down, causing the diaphragm to be unevenly stressed and deviated during movement;

[0100] 2. After the entire pressing wheel 123 is installed, it is difficult to adjust it parallel to the downstream conveying device. Long-term use will cause wear to the bearing components on the pressing wheel 123 and shorten its service life.

[0101] In this embodiment, a plurality of pressing wheels 123 are provided, so that the axial length of a single pressing wheel 123 can be greatly shortened compared with only one pressing wheel 123, thereby avoiding the above-mentioned problem caused by excessive length.

[0102] In order to improve the stability of the lifting of the pressure roller 123, in this embodiment, a pressure roller lifting guide assembly 150 can also be provided, and the pressure roller lifting guide assembly 150 includes a pressure roller lifting slide rail 151 and a pressure roller lifting slide seat 152. The pressure roller lifting slide rail 151 is arranged on the cleaning bracket 110, and the pressure roller lifting slide seat 152 is arranged on the pressure roller mounting beam 122, and slides with the pressure roller lifting slide rail 151. The sliding direction of the pressure roller lifting slide seat 152 along the pressure roller lifting slide rail 151 is the same as the lifting output direction of the pressure roller lifting drive device 121. It should be noted that in order to limit the position of the pressure roller 123 so that the pressure roller 123 can be lifted and lowered within a safe range, a pressure roller limiting device 160 can also be added to the cleaning bracket 110. When the pressure roller 123 rises to the upper limit position, the pressure roller mounting beam 122 is blocked by the pressure roller limiting device 160, and the pressure roller 123 cannot continue to rise.

[0103] In order to collect the swept impurities and prevent the swept impurities from polluting the surrounding environment, in this embodiment, an impurity receiving box 111 is also added. Figure 5 shown.

[0104] The impurity receiving box 111 is arranged directly below the first brush assembly 140 and the cleaning roller assembly 120. It should be noted that the impurity receiving box 111 is a box body with an open top, and after the first brush assembly 140 and the second brush assembly 170 clean the impurities on the surface of the diaphragm, the impurities can fall into the impurity receiving box 111. Specifically, when the diaphragm passes through the first brush assembly 140 along the transmission path, it is cleaned by the upper brush 143 and the lower brush 144 of the first brush assembly 140. Under the action of the upper brush 143 and the lower brush 144, the impurities on the lower surface of the diaphragm and the columnar materials remaining in the through holes of the diaphragm can fall into the impurity receiving box 111 under the action of gravity; the impurities on the upper surface of the diaphragm and the columnar materials remaining in the through holes of the diaphragm are gradually pushed toward the end of the diaphragm (i.e., the end along the conveying direction) by the upper brush 143. When the diaphragm leaves the first brush assembly 140, the impurities on the upper surface of the diaphragm and the columnar materials remaining in the through holes of the diaphragm lose the support of the diaphragm and fall into the impurity receiving box 111 under the action of gravity.

[0105] Although the impurities swept away by the second brush assembly 170 will be supported by the clean transition plate 130, the effect can be ignored because the area of ​​the diaphragm acted on by the second brush assembly 170 is small; in addition, some of the impurities swept away by the second brush assembly 170 will be lifted up by the airflow, and eventually some of them will gradually fall into the impurity receiving box 111 or other locations due to gravity. The operator only needs to clean the dust falling position and the clean transition plate 130 regularly.

[0106] The impurity receiving box 111 can be slidably disposed directly below the first brush assembly 140 and the cleaning roller assembly 120. When there are a lot of impurities in the impurity receiving box 111, the impurity receiving box 111 can be pulled out to dump the impurities contained therein.

[0107] Furthermore, the membrane cleaning mechanism 100 may further include an impurity guide 112, which is used to guide the cleaned impurities to the impurity receiving box 111. The impurity guide 112 may have an inclined surface, and the cleaned impurities first fall on the inclined surface, and then fall into the impurity receiving box 111 under the guidance of the inclined surface.

[0108] like Figure 5 and Fig. 9 As shown, the embodiment of the utility model further discloses a diaphragm detection device, which includes a feeding transmission line 200, a diaphragm cleaning mechanism 100 and a detection line 400, and the diaphragm cleaning mechanism 100 is the diaphragm cleaning mechanism 100 disclosed in the above embodiment. The conveying device of the detection line 400 is the downstream conveying device disclosed in the above embodiment. The diaphragm detection device disclosed in the embodiment of the utility model has all the technical effects of the above diaphragm cleaning mechanism because it has the above diaphragm cleaning mechanism, which will not be repeated here.

[0109] The feeding transmission line 200 may include a feeding bracket 201, a conveying roller 204 and a feeding conveyor belt 203. There are multiple conveying rollers 204, all of which are rotatably supported on the feeding bracket 201. The feeding conveyor belt 203 is driven by driving rollers at both ends for transmission. The driving roller at one end of the feeding conveyor belt 203 is an active roller, and the other end is a driven roller. The driven roller and the active roller are respectively located at both ends of the conveying roller group (composed of all conveying rollers 204). The feeding bracket 201 may also be provided with an electric cabinet box 202 and a start / stop button assembly 205.

[0110] Furthermore, the diaphragm cleaning mechanism 100 is disposed at the end of the feeding transmission line 200 . The feeding transmission line 200 is used to receive upstream incoming materials and transport the diaphragms downstream. When transported to the end, the diaphragms are cleaned by the diaphragm cleaning mechanism 100 .

[0111] When the diaphragm is transported on the loading transmission line 200, the position of the diaphragm on the loading transmission line 200 may be uncertain due to uneven force or different angles and positions of the diaphragm on the loading transmission line 200. There is a risk that the diaphragm will not be able to pass through the diaphragm cleaning mechanism 100 due to non-correspondence with the diaphragm cleaning mechanism 100.

[0112] Based on this, a centering module 300 is installed on the feeding transmission line 200, and the centering module 300 is used to center the diaphragm so that the diaphragm is centered by the centering module 300 before entering the diaphragm cleaning mechanism 100 for cleaning. In this embodiment, the centering module 300 locates the position of the diaphragm on the feeding transmission line 200, so that no matter how deflected the diaphragm is due to any reason, it can be aligned with the diaphragm cleaning mechanism 100 due to the positioning of the centering module 300, avoiding the risk of not being able to pass through the diaphragm cleaning mechanism 100.

[0113] like Figure 7 and Figure 8 As shown, in this embodiment, the centering positioning module 300 may include a fixed base plate 301, a synchronous belt system and a positioning moving member 303. The fixed base plate 301 may be fixed on the loading bracket 201, or may be fixed on other fixed and immovable devices.

[0114] The synchronous belt system is arranged on the fixed base plate 301, and the synchronous belt system may include a synchronous pulley 305 and a synchronous belt 306, wherein one synchronous pulley 305 is a driving pulley (driven by a driving motor 310), and the other synchronous pulley 305 is a driven pulley, and both synchronous pulleys 305 are rotatably arranged on the fixed base plate 301, so that the synchronous belt 306 can be driven to move.

[0115] There are two positioning moving members 303, and the synchronous belt 306 is divided into two parallel parts by the synchronous pulley 305, and the movement directions of these two parts are opposite and the movement speed is the same. One of the positioning moving members 303 is fixedly connected to the synchronous belt on one side of the synchronous belt system, and the other positioning moving member 303 is fixedly connected to the synchronous belt on the other side of the synchronous belt system, so that the movement directions of the two positioning moving members 303 are opposite and the movement speed is the same. By controlling the rotation direction of the synchronous pulley 305, the two positioning moving members 303 can be driven to move closer to each other or away from each other. When the positioning moving members 303 are closer to each other, the diaphragm between the two positioning moving members 303 can be clamped to center the deflected diaphragm.

[0116] A positioning column 307 is provided on the positioning movable member 303, and the positioning column 307 protrudes from the upper surface of the feeding transmission line 200. Specifically, the centering positioning module 300 can be arranged below the conveying roller 204, and the positioning column 307 protrudes from the gap between two adjacent conveying rollers 204 to the upper surface of the feeding transmission line 200 to clamp the film conveyed on the feeding conveyor belt 203 and position the film in the middle position of the two positioning movable members 303. Therefore, when installing the centering positioning module 300, it is only necessary to ensure that the middle position of the two positioning movable members 303 is the desired position of the film.

[0117] Please combine Figure 6 In order to control the opening and closing timing of the positioning moving member 303, in this embodiment, the feeding transmission line 200 is also provided with a material arrival sensor 206. When the material arrival sensor 206 detects the diaphragm, the synchronous belt system drives the positioning moving member 303 to move closer to each other. Correspondingly, when the material arrival sensor 206 cannot detect the diaphragm, the synchronous belt system drives the positioning moving member 303 to move away from each other. It should be noted that the stop position of the positioning moving member 303 when moving closer to each other and the stop position when moving away from each other can be controlled by the synchronous belt system.

[0118] A guide rail 302 may be provided on the fixed base plate 301, and a guide rail slider 304 that slidably cooperates with the guide rail 302 may be provided on the positioning movable member 303. In order to restrict the moving range of the positioning movable member 303, a movable member limit block 308 is also provided on the fixed base plate 301. The movable member limit block 308 is provided at the position of the guide rail 302 to cooperate with the guide rail slider 304 to limit the position. When the guide rail slider 304 moves to the position of the movable member limit block 308, interference is formed with the movable member limit block 308 to limit the continued movement of the positioning movable member 303. In addition, a movable member limit sensor 309 may be added to detect the position of the positioning movable member 303 through the movable member limit sensor 309. When it is detected that the positioning movable member 303 reaches the position of the movable member limit sensor 309, the synchronous belt system is controlled to stop.

[0119] The working process of the membrane detection device disclosed in the embodiment of the utility model is as follows:

[0120] After the diaphragm is placed on the loading conveyor 203, the arrival sensor 206 senses the arrival of the diaphragm, and the centering positioning module 300 realizes the centering positioning of the diaphragm. Then, the loading conveyor 203 transports the diaphragm forward and enters the diaphragm cleaning mechanism 100. The cleaning sensing device 180 senses the diaphragm, and the pressure wheel 123 descends to the conveying line of the detection line 400 (i.e., the downstream conveying equipment) to drive the diaphragm forward. The upper brush 143 and the lower brush 144 are driven by the upper brush lifting cylinder 141 and the lower brush lifting cylinder 142 to clamp the front and back sides of the diaphragm for cleaning. The impurities cleaned during the cleaning process flow into the impurity receiving box 111 below. After the pressure wheel 123 drives the diaphragm to flow out, the pressure wheel 123 rises, and the upper brush 143 and the lower brush 144 are reset, waiting for the next diaphragm to enter.

[0121] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0122] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0123] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0124] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A diaphragm cleaning mechanism, characterized in that: include: A first brush assembly (140) comprises a brush, wherein the brush is arranged along a transmission path of the diaphragm to clean the surface of the diaphragm being transmitted; The cleaning pressure wheel assembly (120) comprises at least a pressure wheel (123) which can rotate around its own axis, the pressure wheel (123) is located in the transmission direction of the diaphragm and downstream of the first brush assembly (140), the axis of the pressure wheel (123) is perpendicular to the transmission direction of the diaphragm, and the pressure wheel (123) is configured to be located above the downstream conveying device, and is used to press the diaphragm transmitted from the upstream conveying device onto the downstream conveying device.

2. The diaphragm cleaning mechanism according to claim 1, characterized in that: The membrane cleaning mechanism is arranged between the upstream transmission device and the downstream transmission device; The brush assembly is composed of a plurality of brush groups, each of which at least comprises an upper brush (143) and a lower brush (144) arranged relatively to each other, the first brush assembly (140) further comprising a brush driving device for driving both the upper brush (143) and the lower brush (144) to move toward the diaphragm, and the diaphragm is configured to pass between the upper brush (143) and the lower brush (144); The upper brush (143) and the lower brush (144) are configured to be driven by the brush driving device to switch between a cleaning position and a preparation position; When in the cleaning position, the upper brush (143) and the lower brush (144) are in contact with the upper and lower surfaces of the diaphragm respectively; When in the preparation position, the upper brush (143) and the lower brush (144) are separated from the upper and lower surfaces of the diaphragm respectively.

3. The membrane cleaning mechanism according to claim 2, characterized in that: The upper brush (143) and the lower brush (144) of the same brush group are located in the same plane in the driving direction of the brush driving device; and / or, The first brush assembly (140) comprises at least two groups of brush groups arranged at intervals along the transmission direction of the diaphragm, and the upper brushes (143) of each brush group are arranged in parallel, and the lower brushes (144) of each brush group are arranged in parallel.

4. The diaphragm cleaning mechanism according to claim 2, characterized in that: It also includes a cleaning transition plate (130) located between the first brush assembly (140) and the cleaning pressure wheel assembly (120), wherein the cleaning transition plate is used to support the diaphragm.

5. The diaphragm cleaning mechanism according to claim 4, characterized in that: The cleaning pressure wheel assembly (120) further comprises a pressure wheel lifting drive device (121), wherein the pressure wheel lifting drive device (121) is used to drive the pressure wheel (123) to switch between a pressing position and a free position; When in the pressing position, the height position of the pressing wheel (123) is a position capable of pressing against the diaphragm and allowing the diaphragm to continue to be transported along the transport path; When in the clearing position, the height of the pressing wheel (123) is such that it can avoid the diaphragm.

6. The membrane cleaning mechanism according to claim 5, characterized in that: Also includes: Cleaning the sensing device (180) and the controller; The cleaning sensing device (180) is arranged between the cleaning pressure wheel assembly (120) and the first brush assembly (140) along the transmission direction, and is used to detect whether the diaphragm is present at a preset position on the cleaning transition plate, and send the detection result to the controller; The controller is used to control the brush drive device and the pressure wheel lifting drive device (121) to operate when the detection result indicates that there is a diaphragm and the diaphragm is located below the pressure wheel (123), so that the upper brush (143) and the lower brush (144) are in a cleaning position and the pressure wheel (123) is in a pressing position.

7. The membrane cleaning mechanism according to claim 6, characterized in that: The controller is also used to control the brush drive device and the pressure wheel lifting drive device (121) to operate when the diaphragm is transported away from under the pressure wheel (123), so that the upper brush (143) and the lower brush (144) are in the ready position and the pressure wheel (123) is in the out of the way position.

8. The diaphragm cleaning mechanism according to claim 6, characterized in that: It also includes a second brush assembly (170) that moves with the pressing wheel (123), and the second brush assembly (170) is arranged between the pressing wheel (123) and the first brush assembly (140) along the transmission direction; When the pressing wheel (123) is in the pressing position, the second brush assembly (170) contacts the upper surface of the diaphragm on the cleaning transition plate (130); When the pressure wheel (123) is in the clear position, the second brush assembly (170) is separated from the upper surface of the membrane on the cleaning transition plate (130).

9. The membrane cleaning mechanism according to any one of claims 1 to 8, characterized in that: The pressing wheels (123) are multiple and arranged at intervals, and the arrangement direction of each pressing wheel (123) is perpendicular to the transmission direction of the membrane.

10. The membrane cleaning mechanism according to any one of claims 1 to 8, characterized in that: Also includes: An impurity receiving box (111), wherein the impurity receiving box (111) is arranged directly below the first brush assembly (140) and the cleaning pressure wheel assembly (120); A foreign matter guide (112), wherein the foreign matter guide (112) is used to guide the cleaned foreign matter to the foreign matter receiving box (111).

11. A membrane detection device, characterized in that: It comprises a feeding transmission line (200), a diaphragm cleaning mechanism (100) and a detection line (400), wherein the diaphragm cleaning mechanism (100) is the diaphragm cleaning mechanism (100) according to any one of claims 1 to 10.

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