A light guide plate wiping mechanism

Abstract

The present invention discloses a light guide plate wiping mechanism, which is provided with processing grooves on the wiping wheel to imitate the way of wiping products by human hands; when the light guide plate contacts the wiping wheel, the side of the product is pressed into the processing grooves, so that the dust-free cloth contacts and wipes both the side of the product and the two edges of the side of the product, and the wiping is cleaner, more thorough; it can effectively solve the problems of high labor intensity and low product yield in the existing production of light guide plates.

Description

Technical Field

[0001] The invention belongs to the technical field of light guide plate cleaning equipment, and in particular relates to a light guide plate wiping mechanism. Background Art

[0002] The light guide plate is a high-tech product that converts line light sources into surface light sources. If the light guide plate is not clean enough, it will affect the overall yield of the subsequent LCD screen (bright spots appearing on the screen, etc.). Therefore, the light guide plate products must ensure good cleanliness before leaving the factory, and each product must be cleaned before packaging.

[0003] However, the existing whole process of cleaning the light guide plate is basically done manually, which has high labor intensity and is prone to fatigue, so that the cleanliness of the light guide plate cannot be guaranteed, and the degree of mechanization and automation is low, which is not conducive to cost control and efficiency improvement. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a light guide plate wiping mechanism for wiping and cleaning the side surfaces of the light guide plate.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A light guide plate wiping mechanism comprises a mechanism mounting plate, a wiping wheel, a dust-free cloth placement shaft, a cloth collecting wheel, and a motor; a rolled dust-free cloth is placed on the dust-free cloth placement shaft; the output shaft of the motor is drivingly connected to the cloth collecting wheel; the dust-free cloth is wound around the outer side of the wiping wheel and then rolled up by the cloth collecting wheel; the wiping wheel is arranged on the outer side of the mechanism mounting plate, and is used for contacting and wiping the light guide plate with the outer side surface of the wiping wheel wrapped around the dust-free cloth when the light guide plate passes through the wiping wheel, and a machined groove is provided on the wiping wheel corresponding to the wiping position of the light guide plate, so that when the light guide plate contacts the wiping wheel, the side surface of the light guide plate is pressed into the machined groove, so that the two side edges of the light guide plate are wiped clean.

[0007] A light guide plate wiping mechanism in the above technical solution is provided with a processed groove on the wiping wheel to imitate the way of wiping the product by hand; when the light guide plate contacts the wiping wheel, the side of the product is pressed into the processed groove, so that the dust-free cloth contacts and wipes the side of the product and the two edges of the side of the product, making the wiping more thorough and clean.

[0008] In some embodiments, the contact angle between the dust-free cloth and the front and back surfaces of the light guide plate product is greater than 0°. By controlling the degree to which the side of the light guide plate is pressed into the processed groove, the dust-free cloth contacts the side and two edges of the product, but does not contact the front and back surfaces of the product, thereby ensuring that the product is wiped cleanly and that the wiping process does not damage the product.

[0009] In some embodiments, the wiping wheel is disposed at one end of a wiping rotating block, the wiping rotating block is hinged to a wiping rotating shaft, the wiping rotating shaft is fixedly disposed on the mechanism mounting plate, the wiping rotating block is connected with a wiping tension spring, and the wiping tension spring has a tension elastic force for keeping the end of the wiping rotating block provided with the wiping wheel in a tensioned state toward the outside.

[0010] In some embodiments, a limiting block is provided on the mechanism mounting plate, and the limiting block is in limiting cooperation with the wiping rotating block to limit the maximum tension position of the wiping wheel.

[0011] In some embodiments, a tensioning wheel is provided between the wiping wheel and the non-woven fabric placing shaft; the lower end of the tensioning wheel is disposed on a tensioning rotating block, the tensioning rotating block is hinged to a tensioning rotating shaft, the tensioning rotating shaft is fixedly disposed on the mechanism mounting plate, the tensioning rotating block is connected with a tensioning wheel tension spring, and the tensioning wheel is used for tensioning the non-woven fabric between the wiping wheel and the non-woven fabric placing shaft.

[0012] In some embodiments, a driving wheel, a clamping cylinder and a clamping wheel are provided between the wiping wheel and the cloth receiving wheel, the clamping wheel is connected with the clamping cylinder, and the clamping cylinder is used for pressing the clamping wheel against the driving wheel; the non-woven fabric between the wiping wheel and the cloth receiving wheel is clamped between the driving wheel and the clamping wheel; the driving wheel is in transmission connection with a motor and is used for driving the non-woven fabric to move toward the cloth receiving wheel.

[0013] In some embodiments, an adjustment mounting plate is provided below the mechanism mounting plate, and a first linear slide rail is provided on the upper surface of the adjustment mounting plate; the mechanism mounting plate is slidably connected to the first linear slide rail; the adjustment mounting plate is provided with a wiping action cylinder, one end of the wiping action cylinder is fixedly connected to the adjustment mounting plate, and the other end is fixedly connected to the mechanism mounting plate; the extension and retraction of the wiping action cylinder are used for driving the mechanism mounting plate to perform relative movement and displacement along the first linear slide rail.

[0014] In some embodiments, a mounting bottom plate is provided below the adjustment mounting plate, a second linear slide rail is provided on the upper surface of the mounting bottom plate, the adjustment mounting plate is slidably connected to the second linear slide rail, a manual threaded rod adjustment device is provided on the mounting bottom plate, and the adjustment mounting plate is in threaded transmission connection with the mounting bottom plate through the manual threaded rod adjustment device; by rotating the knob of the manual threaded rod adjustment device, it is possible to slide and adjust the adjustment mounting plate on the second linear slide rail.

[0015] The beneficial effects of the present invention are as follows: A light guide plate wiping mechanism of the present invention is provided with processing grooves on the wiping wheel, imitating the way of wiping the product by hand; when the light guide plate contacts the wiping wheel, the side of the product is pressed into the processing groove, so that the dust-free cloth contacts and wipes both the side of the product and the two edges of the side of the product, and the wiping is cleaner, more thorough, and can effectively solve the problems of high labor intensity and low product yield in the existing production of light guide plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the drawings and embodiments.

[0017] Figure 1 FIG. is a front axonometric structural schematic diagram of a light guide plate wiping mechanism described in an embodiment of the present invention;

[0018] Figure 2 FIG. is a rear axonometric structural schematic diagram of a light guide plate wiping mechanism described in an embodiment of the present invention;

[0019] Figure 3 FIG. is a working state schematic diagram of the wiping wheel contacting and wiping the light guide plate for cleaning in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present invention. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0022] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0023] AsFigures 1-3 A light guide plate wiping mechanism as shown includes a mechanism mounting plate 5, a wiping wheel 12, a dust-free cloth placing shaft 9, a cloth winding wheel 13, and a motor 6; a roll of dust-free cloth 8 is placed on the dust-free cloth placing shaft 9; the output shaft of the motor 6 is in transmission connection with the cloth winding wheel 13; the dust-free cloth 8 is wound around the outer side of the wiping wheel 12 and then wound by the cloth winding wheel 13; the wiping wheel 12 is arranged on the outer side of the mechanism mounting plate 5 and is used for when the light guide plate 10 passes by the wiping wheel 12, the outer side of the wiping wheel 12 with the dust-free cloth 8 in contact with the side surface of the light guide plate 10 to wipe the light guide plate 10. A processing groove 121 is provided at the wiping position of the wiping wheel 12 corresponding to the light guide plate 10. When the light guide plate 10 contacts the wiping wheel 12, the side edges of the light guide plate 10 are pressed into the processing groove 121, so that the two side edges of the light guide plate 10 are wiped and cleaned.

[0024] In a light guide plate wiping mechanism in the above technical solution, a processing groove 121 is provided on the wiping wheel 12 to imitate the way of wiping the product by hand; when the light guide plate 10 contacts the wiping wheel 12, the side surface of the product is pressed into the processing groove 121, so that the dust-free cloth 8 contacts and wipes both the side surface of the product and the two edges of the side surface of the product, and the wiping is cleaner, more thorough.

[0025] The state diagram of the product wiping in this application is as shown in Figure 3 shown; in some embodiments, the included angle between the dust-free cloth 8 and the front and back sides of the light guide plate 10 product in contact is greater than 0°. By controlling the degree to which the side surface of the light guide plate 10 is pressed into the processing groove 121, or rather, by controlling the depth of the processing groove 121, the dust-free cloth contacts the side surface and the two edges of the product, but does not contact the front and back sides of the product, which can ensure the wiping cleanliness of the product and ensure that the product will not be damaged during the wiping process.

[0026] In some embodiments, the wiping wheel 12 is arranged at one end of a wiping rotating block 122, the wiping rotating block 122 is hinged on a wiping rotating shaft 123, the wiping rotating shaft 123 is fixedly arranged on the mechanism mounting plate 5, and the wiping rotating block 122 is connected with a wiping tension spring 124. The wiping tension spring 124 has a tension force that keeps the end of the wiping rotating block 122 provided with the wiping wheel 12 in a tension state towards the outside.

[0027] In Figure 2 the embodiments, a limit block 125 is further provided; in other embodiments, the limit block 125 may not be provided; by controlling the maximum elastic force position of the wiping tension spring 124, the maximum tension position of the wiping wheel can be controlled; when the wiping wheel 12 contacts the light guide plate, the advancing force of the light guide plate 10 causes the wiping wheel 12 to retract, which is possible.

[0028] As shown in Figure 2As shown, in some embodiments, a tension wheel 11 is provided between the wiping wheel 12 and the non-woven fabric placement shaft 9; the lower end of the tension wheel 11 is disposed on a tension rotating block 111, and the tension rotating block 111 is hinged on a tension rotating shaft 112, and the tension rotating shaft 112 is fixedly disposed on the mechanism mounting plate 5. The tension rotating block 111 is connected with a tension wheel tension spring 113, and the tension wheel 111 is used to tension the non-woven fabric 8 between the wiping wheel 12 and the non-woven fabric placement shaft 9.

[0029] As Figure 1 As shown, in some embodiments, a driving wheel 7, a clamping cylinder 17 and a clamping wheel 16 are provided between the wiping wheel 12 and the fabric receiving wheel 13. The clamping wheel 16 is connected with the clamping cylinder 17, and the clamping cylinder 17 is used to press the clamping wheel 16 against the driving wheel 7; the non-woven fabric 8 between the wiping wheel 12 and the fabric receiving wheel 13 is clamped between the driving wheel 7 and the clamping wheel 16; the driving wheel 7 is in transmission connection with the motor 6 and is used to drive the non-woven fabric 8 to move towards the fabric receiving wheel 13. Providing the driving wheel 7 to assist the fabric receiving wheel 13 in winding the non-woven fabric 8 can reduce the winding force of the non-woven fabric 8 and avoid damage.

[0030] In some embodiments, an adjustment mounting plate 3 is provided below the mechanism mounting plate 5, and a first linear slide rail 4 is provided on the upper surface of the adjustment mounting plate 3; the mechanism mounting plate 5 is slidably connected to the first linear slide rail 4; the adjustment mounting plate 3 is provided with a wiping action cylinder 14, one end of the wiping action cylinder 14 is fixedly connected to the adjustment mounting plate 3, and the other end is fixedly connected to the mechanism mounting plate 5; the expansion and contraction of the wiping action cylinder 14 is used to drive the mechanism mounting plate 5 to perform relative movement displacement along the first linear slide rail 4.

[0031] In some embodiments, an installation base plate 1 is provided below the adjustment mounting plate 3, a second linear slide rail 2 is provided on the upper surface of the installation base plate 1, the adjustment mounting plate 3 is slidably connected to the second linear slide rail 2, and a manual threaded rod adjustment device 15 is provided on the installation base plate 1. The adjustment mounting plate 3 is in threaded transmission connection with the installation base plate 1 through the manual threaded rod adjustment device 15; by rotating the knob of the manual threaded rod adjustment device 15, it is possible to slide and adjust the adjustment mounting plate 3 on the second linear slide rail 2. In some embodiments, the manual threaded rod adjustment device 15 can be an adjustment T-shaped threaded rod device.

[0032] The light guide plate wiping mechanism of the present application can be roughly positioned by the manual threaded rod positioning device 15 when processing products of different sizes to ensure the distance between the wiping wheel 12 and the light guide plate 10 product; during wiping, the wiping action cylinder 14 drives the mechanism mounting base plate 5 so that the dust-free cloth belt 8 on the wiping wheel 12 contacts the product, and then the product moves for wiping. After one wiping is completed, the stepping motor 6 drives the driving wheel 6 and the cloth take-up wheel 13 to take in a section of the dust-free cloth, so as to keep the dust-free cloth on the wiping wheel 12 clean and dust-free.

[0033] This wiping mechanism has never been used in the field of cleaning the catheter plate, and the wiping wheel 12 is made of a 304 stainless steel shaft coated with PU with a Shore hardness of 40, and is provided with processing grooves. This design imitates the method of manually wiping the product; when the product contacts the wiping wheel 12, the dust-free cloth 8 is pressed into the processing groove 121, so that the dust-free cloth 8 can contact the side and two edges of the product but does not contact the front and back sides of the product. This design can not only ensure the cleanliness of the product wiping but also ensure that the product will not be damaged during the wiping process.

[0034] The light guide plate wiping mechanism of the present application reduces manual operation by imitating manual cleaning operation actions, which is beneficial to saving labor costs.

[0035] At the same time, through dust-free cloth cleaning and each section of dust-free cloth is used only once, it is ensured that the product will not be secondarily polluted and the product cleanliness is guaranteed. When the cloth take-up wheel 13 takes in the dust-free cloth, it can also rotate counterclockwise to roll up the dirty side of the dust-free cloth, and then place it on the dust-free cloth placement shaft and draw out the dust-free cloth belt clockwise to reuse the clean side on the other side.

[0036] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A light guide plate wiping mechanism, characterized in that: it includes a mechanism mounting plate, a wiping wheel, a dust-free cloth placing shaft, a cloth collecting wheel, and a motor; a roll of dust-free cloth is placed on the dust-free cloth placing shaft; the output shaft of the motor is in transmission connection with the cloth collecting wheel; the dust-free cloth is wound around the outer side of the wiping wheel and then collected by the cloth collecting wheel; the wiping wheel is arranged on the outer side of the mechanism mounting plate and is used for when the light guide plate passes by the wiping wheel, the outer side of the wiping wheel with the dust-free cloth wound around it contacts the side surface of the light guide plate to wipe the light guide plate, and a processing groove is provided at the wiping position of the wiping wheel corresponding to the light guide plate, so that when the light guide plate contacts the wiping wheel, the side edge of the light guide plate is pressed into the processing groove, and the two side edges of the light guide plate are wiped and cleaned; the wiping wheel is arranged at one end of a wiping rotating block, the wiping rotating block is hinged on a wiping rotating shaft, the wiping rotating shaft is fixedly arranged on the mechanism mounting plate, the wiping rotating block is connected with a wiping tension spring, and the wiping tension spring has a tension force that makes the end of the wiping rotating block provided with the wiping wheel keep being tensioned outward; a tensioning wheel is arranged between the wiping wheel and the dust-free cloth placing shaft; the lower end of the tensioning wheel is arranged on a tensioning rotating block, the tensioning rotating block is hinged on a tensioning rotating shaft, the tensioning rotating shaft is fixedly arranged on the mechanism mounting plate, the tensioning rotating block is connected with a tensioning wheel tension spring, and the tensioning wheel is used for tensioning the dust-free cloth between the wiping wheel and the dust-free cloth placing shaft.

2. The light guide plate wiping mechanism according to claim 1, characterized in that: the included angle between the dust-free cloth and the contact fixture of the front and back surfaces of the light guide plate product is greater than 0°.

3. The light guide plate wiping mechanism according to claim 1, characterized in that: a limiting block is arranged on the mechanism mounting plate, and the limiting block and the wiping rotating block are in limiting cooperation to limit the maximum tensioning position of the wiping wheel.

4. The light guide plate wiping mechanism according to claim 1, characterized in that: a driving wheel, a clamping cylinder and a clamping wheel are arranged between the wiping wheel and the cloth collecting wheel, the clamping wheel is connected with the clamping cylinder, and the clamping cylinder is used for pressing the clamping wheel against the driving wheel; the dust-free cloth between the wiping wheel and the cloth collecting wheel is clamped between the driving wheel and the clamping wheel; the driving wheel is in transmission connection with the motor and is used for driving the dust-free cloth to move towards the cloth collecting wheel direction.

5. The light guide plate wiping mechanism according to claim 1, characterized in that: an adjustment mounting plate is arranged below the mechanism mounting plate, and a first linear slide rail is arranged on the upper surface of the adjustment mounting plate; the mechanism mounting plate is slidably connected to the first linear slide rail; the adjustment mounting plate is provided with a wiping action cylinder, one end of the wiping action cylinder is fixedly connected to the adjustment mounting plate, and the other end is fixedly connected to the mechanism mounting plate; the telescoping of the wiping action cylinder is used for driving the mechanism mounting plate to perform relative movement displacement along the first linear slide rail.

6. The light guide plate wiping mechanism according to claim 5, characterized in that: A mounting base plate is provided below the position-adjusting mounting plate. A second linear slide rail is provided on the upper surface of the mounting base plate. The position-adjusting mounting plate is slidably connected to the second linear slide rail. A manual threaded rod position-adjusting device is provided on the mounting base plate. The position-adjusting mounting plate and the mounting base plate are in threaded transmission connection through the manual threaded rod position-adjusting device; by rotating the knob of the manual threaded rod position-adjusting device, it is possible to slide and adjust the position of the position-adjusting mounting plate on the second linear slide rail.

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