Full-automatic dry-type ultrasonic dust removal equipment for membrane material

Abstract

The invention relates to the field of membrane cleaning, in particular to full-automatic dry type ultrasonic dust removal equipment for a membrane material. The feeding assembly is arranged on the machine table and comprises a plurality of feeding bins used for storing membranes; the transferring assembly comprises a plurality of suction nozzles, the multiple suction nozzles are divided into at least two groups, and when the diaphragms are picked up at the stock bin, the two groups of suction nozzles alternately move up and down in a reciprocating mode; the first cleaning assembly comprises a first suction cup assembly and a first dust removal device arranged above the first suction cup assembly, and the first suction cup assembly bears the membranes at the transfer assembly and passes through the lower portion of the first dust removal device; the second cleaning assembly comprises a second suction cup assembly and a second dust removal device arranged below the second suction cup assembly, and the second suction cup assembly bears the diaphragm at the first suction cup assembly and passes through the position above the second dust removal device; and the discharging assembly comprises a plurality of discharging bins, and the second suction cup assembly moves the membranes to the discharging bins. And through the design that automatic feeding is conducted, the first cleaning assembly and the second cleaning assembly are used for cleaning the two surfaces of the membrane correspondingly, and automatic discharging is conducted after cleaning, the membrane cleaning efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of membrane cleaning technology, and in particular to a fully automatic dry ultrasonic dust removal device for membrane materials. Background Technology

[0002] Optical films are widely used in everyday life, including eyeglass coatings, LCD displays, electronic paper, and LED lighting. The cleanliness requirements for optical films are high; if dust or impurities are present on their surface, noticeable air bubbles will appear after assembly, and these bubbles cannot be scraped off, thus affecting product quality. Therefore, it is necessary to clean the surface of the film to remove impurities and dust before use.

[0003] In existing technologies, manual inspection is typically required before assembly. When dust or impurities are found on the surface, simple wiping can easily scratch the diaphragm surface. When both sides of the diaphragm need cleaning, manually flipping it can cause the surface to re-accumulate dust. Furthermore, manual cleaning is inefficient, thus affecting production efficiency. Therefore, how to achieve efficient cleaning of the diaphragm is a problem that those skilled in the art need to consider. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic dry ultrasonic dust removal device for membrane materials, so as to solve the problems of difficult cleaning of membrane surfaces and low efficiency in the prior art.

[0005] The technical solution of the present invention is: a fully automatic dry ultrasonic dust removal device for membrane materials, including a machine base; The feeding assembly, set on the machine base, includes multiple feeding bins for storing film sheets; The transfer assembly includes multiple suction nozzles, which are divided into at least two groups. When picking up a membrane at the hopper, the two groups of suction nozzles move up and down alternately. The first cleaning component includes a first suction cup assembly and a first dust removal device disposed above the first suction cup assembly, wherein the membrane at the transfer assembly carried by the first suction cup assembly passes under the first dust removal device. The second cleaning component includes a second suction cup assembly and a second dust removal device disposed below the second suction cup assembly, wherein the second suction cup assembly carries the diaphragm at the first suction cup assembly and passes over the second dust removal device. The feeding assembly includes multiple feeding bins, and the second suction cup assembly moves the membrane to the feeding bins.

[0006] Preferably, the transfer assembly includes a first support frame connected to the machine tool via a first linear module, and a mounting plate connected to the first support frame via a first driving device with a vertical driving direction. Multiple sets of pickup assemblies are connected to the mounting plate; the suction nozzle is disposed on the pickup assembly.

[0007] Preferably, the pickup component is provided with four suction nozzles, which are arranged in a rectangular pattern. After the four suction nozzles simultaneously pick up the same membrane, two suction nozzles arranged at opposite corners move up and down simultaneously, and two adjacent suction nozzles move up and down sequentially.

[0008] Preferably, the picking assembly further includes a pressing device, which includes a second driving device connected to the mounting plate with a vertical driving direction and a pressing plate connected to the second driving device; The pressure plate moves vertically to a position higher or lower than the lower end face of the suction nozzle under the drive of the second driving device.

[0009] Preferably, the feeding hopper includes a first carrier plate, two first positioning rods arranged on both sides of the first carrier plate along the X direction, and two second positioning rods arranged on both sides of the first carrier plate along the Y direction; The diaphragm is placed on the first carrier plate and positioned between the first positioning rod and the second positioning rod.

[0010] Preferably, a second linear module is connected below the first suction cup assembly, and the second linear module can drive the first suction cup assembly to move in the X direction; The upper surface of the first suction cup assembly is flat and has multiple sets of negative pressure holes.

[0011] Preferably, the first cleaning component includes an adhesive component disposed on the side of the first dust removal device near the feeding component. The adhesive component includes a first bracket connected to the first dust removal device via a fourth driving device with a vertical driving direction, a rubber-coated roller and an adhesive roller disposed on the first bracket, the adhesive roller being tangentially disposed at the upper end of the rubber-coated roller, the two being parallel to each other and having an axial direction in the Y direction. The fourth driving device can drive the rubber-coated roller downwards through the first bracket until it contacts the diaphragm on the first suction cup assembly.

[0012] Preferably, the second cleaning component further includes a second support frame connected to the machine via a third linear module, the third linear module driving the second support frame to move in the X direction; The second support frame is also connected to the upper end of the second suction cup assembly via a third driving device with a vertical driving direction, and the second suction cup assembly can be driven to move in the vertical direction via the third driving device.

[0013] Preferably, the lower end face of the second suction cup assembly is flat and has multiple sets of negative pressure holes.

[0014] Preferably, the feeding bin includes a second carrier plate, a third positioning rod disposed on both sides of the second carrier plate along the X direction, and a fourth positioning rod disposed on both sides of the second carrier plate along the Y direction; The second suction cup assembly transfers the diaphragm onto the second carrier plate, with the diaphragm positioned between the third positioning rod and the fourth positioning rod.

[0015] Compared with the prior art, the advantages of the present invention are: (1) By using a design that involves self-feeding, cleaning the two surfaces of the membrane by the first cleaning component and the second cleaning component, and automatically unloading the membrane after cleaning, unattended operation is achieved, and the membrane material is cleaned on both sides at once, which greatly improves the efficiency of membrane cleaning. In the process of the first suction cup assembly and the second suction cup assembly being reset after the membrane is cleaned by the first cleaning assembly and the second cleaning assembly, the surfaces of the first suction cup assembly and the second suction cup assembly can be cleaned by the first dust removal device and the second dust removal device, so as to avoid the surface of the two being contaminated with impurities and affecting the cleanliness of the membrane. (2) When the transfer component is loaded, the two sets of suction nozzles set symmetrically vibrate alternately to shake the material at high frequency, which can effectively avoid the adhesion between the membranes caused by static electricity or negative pressure and prevent the picking up of multiple membranes. Meanwhile, the two sets of suction nozzles at opposite corners move up and down alternately, which can prevent the position of excess membranes from shifting significantly when they fall, thus ensuring the positional accuracy when picking up subsequent membranes. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the fully automatic dry ultrasonic dust removal equipment for the membrane material described in this invention; Figure 2 This is a top view of the fully automatic dry ultrasonic dust removal equipment for the membrane material described in this invention. Figure 3 This is a schematic diagram of the feeding assembly described in this invention; Figure 4 This is a schematic diagram of the structure of the transfer assembly described in this invention; Figure 5 This is a schematic diagram of the transfer component described in this invention from another angle; Figure 6 This is a schematic diagram of the structure of the first cleaning component of the present invention; Figure 7 This is a schematic diagram of the structure of the second cleaning component of the present invention; Figure 8 This is a schematic diagram of the second cleaning component of the present invention from another angle; Figure 9 This is a schematic diagram of the feeding assembly described in this invention.

[0017] in: Machine 1, Feeding assembly 2, feeding bin 21, first carrier plate 211, first positioning rod 212, second positioning rod 213; First cleaning component 3, first suction cup component 31, first dust removal device 32, second linear module 33, adhesive component 34, fourth driving device 341, first bracket 342, rubber-coated roller 343, adhesive roller 344. Second cleaning component 4, second suction cup component 41, second dust removal device 42, third linear module 43, second support frame 44, third drive device 45; Material feeding assembly 5, material feeding bin 51, second carrier plate 52, third positioning rod 53, fourth positioning rod 54; The transfer assembly 6, the first linear module 61, the first support frame 62, the first drive device 63, the mounting plate 64, the pickup assembly 65, the suction nozzle 66, the pressing device 67, the second drive device 671, and the pressure plate 672. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments: like Figures 1-9 As shown, this invention is applied to the cleaning of impurities on the surface of optical films. Before being bonded and assembled with other parts, the surface of optical films needs to be cleaned to remove dust and other impurities, avoiding defects after assembly. Upon arrival, multiple films are stacked, requiring individual cleaning before being neatly stacked and then transported manually or by other handling devices to the next process for further processing. In this application, the stacked films are placed in the loading hopper, where a suction nozzle on the transfer assembly picks up the films and transfers them to the first suction cup assembly of the first cleaning assembly. The first suction cup assembly carries the films, cleaning one side of the films as they pass through the first dust removal device. Then, the films move to the second cleaning assembly, where the second suction cup assembly carries them, cleaning the other side as they pass through the second dust removal device. After cleaning, the films are transferred to the unloading hopper for stacking. Specifically: A fully automatic dry ultrasonic dust removal device for membrane materials includes a machine base 1, a feeding component 2, a first cleaning component 3, a second cleaning component 4 and a discharging component 5 arranged sequentially along the X direction on the machine base 1, wherein the machine base 1 is also provided with a transfer component 6, which can transfer the membrane at the feeding component 2 to the first cleaning component 3.

[0019] The feeding assembly 2 includes multiple feeding bins 21 for storing membrane sheets. Each feeding bin 21 includes a first carrier plate 211, two first positioning rods 212 arranged on both sides of the first carrier plate 211 along the X direction, and two second positioning rods 213 arranged on both sides of the first carrier plate 211 along the Y direction. The membrane sheet is placed on the first carrier plate 211 and positioned between the first positioning rods 212 and the second positioning rods 213.

[0020] In this embodiment, four feeding bins 21 are provided simultaneously. These four feeding bins 21 can hold membrane sheets of the same specification or membrane sheets of different specifications, enabling simultaneous cleaning of multiple membrane materials of different specifications within the same operating process. The distance between the two first positioning rods 212 is adjustable, as is the distance between the two second positioning rods 213, to accommodate membrane sheets of different specifications. A first lifting device (not shown in the diagram) is provided at the bottom of the first carrier plate 211. When the transfer component 6 removes a membrane sheet, the first lifting device drives the first carrier plate 211 upwards by the distance of one membrane sheet, ensuring that the uppermost membrane sheet in the feeding bin 21 is always at the preset height. In other embodiments, because the membrane sheet thickness is small, the first lifting device cannot accurately drive a distance equal to the thickness of one membrane sheet. Therefore, it can be set to drive the lifting device upwards once every certain number of membrane sheets removed.

[0021] The transfer assembly 6 includes a first support frame 62 connected to the machine base 1 via a first linear module 61, and a mounting plate connected to the first support frame 62 via a first drive device 63 with a vertical driving direction. Multiple sets of pickup assemblies 65 are connected to the mounting plate 64. Each pickup assembly 65 includes multiple suction nozzles 66, which are divided into at least two groups. When picking up a film at the loading hopper, the two groups of suction nozzles 66 move alternately up and down. The pickup assembly 65 has four suction nozzles 66 arranged in a rectangular pattern.

[0022] In this embodiment, the suction nozzle is a shaking suction nozzle, which can also be connected to the pickup component 65 via a shaking cylinder to achieve high-frequency reciprocating motion of the suction nozzle, thereby achieving high-frequency shaking of the membrane. The driving direction of the first linear module 61 is the X direction. The number of pickup components 65 and the number of feeding bins 21 are also set to four sets, and they correspond one-to-one with the four sets of feeding bins 21. The four sets of pickup components 65 are independently controlled and can simultaneously pick up the membrane material in the four sets of feeding bins 21. The suction nozzle 66 is a shaking suction nozzle, which can shake the picked-up material up and down. The relative position of the four suction nozzles 66 can be adjusted according to the specifications of the membrane. Of course, the number of suction nozzles 66 can also be adjusted according to the specifications of the membrane. In this embodiment, a rectangular membrane is used as an example. The pickup component 65 is directly above the feeding bin 21. The first driving device 63 drives the pickup component 65 to move downward until the suction nozzle 66 contacts or is about to contact the membrane and then stops. The four suction nozzles 66 simultaneously pick up the membrane and pick up the membrane at the four corners of the membrane respectively. Then, two sets of suction nozzles 66 are formed by taking two opposite corners of the membrane as a group. The two sets of suction nozzles 66 shake alternately, thereby driving the two opposite corners of the membrane to move up and down at the same time. At the same time, the other two opposite corners of the membrane move down and up at the same time, thereby shaking the membrane and avoiding the occurrence of picking up multiple membranes at the same time.

[0023] By moving the diaphragm up and down in an orderly manner and performing high-frequency shaking, the diaphragm is always kept close to the top of the feeding bin 21. No matter when the excess diaphragm falls, it can avoid excessive positional deviation that would affect the subsequent picking accuracy.

[0024] In other embodiments, the disordered shaking of multiple suction nozzles 66 drives the membrane to move up and down in a disordered manner, which can shake off excess membranes. However, since the timing of the membrane falling is uncontrollable, excess membranes may detach during the upward movement, which may cause the membranes to drift off-center and not be completely placed between the two first positioning rods 212 and the two second positioning rods 213, thus affecting the subsequent picking up of membranes.

[0025] The pickup assembly 65 also includes a pressing device 67, which includes a second drive unit 671 connected to the mounting plate 64 and driven in a vertical direction, and a pressure plate 672 connected to the second drive unit 671. Under the drive of the second drive unit 671, the pressure plate 672 moves vertically to a position higher or lower than the lower end face of the suction nozzle 66.

[0026] The first cleaning component 3 includes a first suction cup assembly 31 and a first dust removal device 32 disposed above the first suction cup assembly 31. A second linear module 33 is connected below the first suction cup assembly 31, and the second linear module 33 can drive the first suction cup assembly 31 to move in the X direction, so that the diaphragm passes under the first dust removal device 32. The upper surface of the first suction cup assembly 31 is flat and is provided with multiple sets of negative pressure holes.

[0027] The first cleaning component 3 includes an adhesive component 34 disposed on the side of the first dust removal device 32 near the feeding component 2. The adhesive component 34 includes a first bracket 342 connected to the first dust removal device 32 via a fourth driving device 341 with a vertical driving direction, a rubber-coated roller 343 and an adhesive roller 344 disposed on the first bracket 342. The adhesive roller 344 is tangentially disposed at the upper end of the rubber-coated roller 343, and the two are parallel to each other with their axial direction in the Y direction. The fourth driving device 341 can drive the rubber-coated roller 343 downward to contact the diaphragm on the first suction cup component 31 through the first bracket 342, thereby achieving the adhesion of larger impurities on the diaphragm. The adhered impurities are picked up by the adhesive roller 344 to keep the rubber-coated roller 343 clean.

[0028] In this embodiment, the first suction cup assembly 31 has four sets of negative pressure holes, corresponding to four sets of pickup assemblies 65. These four sets of negative pressure holes are independently controlled, allowing simultaneous pickup of films from the four pickup assemblies, as well as individual pickup of one or more films. The negative pressure holes of the first suction cup assembly 31 face upwards. The transfer assembly 6 picks up the film and moves it directly above the first suction cup assembly 31. The first driving device 63 drives the film downwards until it contacts or is about to release the surface of the first suction cup assembly 31. The second driving device 671 drives the pressure plate 672 downwards, contacting the film at its center to the surface of the first suction cup assembly 31. Then, the suction nozzle 66 breaks the vacuum and detaches from the film. The first suction cup assembly 31 adsorbs the film through the negative pressure holes. Afterwards, the pressing device 67 resets, completing the transfer of the film from the transfer assembly 6 to the first cleaning assembly 3.

[0029] By setting up the pressing device 67, the position of the membrane is fixed before placing it, which can prevent the membrane from shifting when the suction nozzle 66 breaks the vacuum.

[0030] The first dust removal device 32 can be a dry ultrasonic dust removal device, or other dust removal devices can be used as needed. When the second linear module 33 drives the first suction cup assembly 31 to move in the X direction, it passes through the first dust removal device 32, thus cleaning the surface of the diaphragm.

[0031] The second cleaning component 4 includes a second suction cup component 41 and a second dust removal device 42 disposed below the second suction cup component 41. The second suction cup component 41 carries the diaphragm at the first suction cup component 31 and passes above the second dust removal device 42.

[0032] The second cleaning component 4 also includes a second support frame 44 connected to the machine base 1 via a third linear module 43. The third linear module 43 drives the second support frame 44 to move in the X direction. The second support frame 44 is also connected to the upper end of the second suction cup assembly 41 via a third driving device 45 with a vertical driving direction, and can drive the second suction cup assembly 41 to move in the vertical direction via the third driving device 45. The lower end surface of the second suction cup assembly 41 is flat and is provided with multiple sets of negative pressure holes.

[0033] In this embodiment, the second dust removal device 42 can be a dry ultrasonic dust removal device, or other dust removal devices can be used as needed. The second suction cup assembly 41 has four sets of negative pressure holes, corresponding to the four sets of negative pressure holes on the first suction cup assembly. The four sets of negative pressure holes on the second suction cup assembly 41 are independently controlled and can operate simultaneously or individually. The first suction cup assembly 31 moves along the X direction and stops after completely passing the first dust removal device 32, stopping directly below the second suction cup assembly 41. Driven by the third driving device 45, the second suction cup assembly 41 moves downwards to contact or is about to release the surface of the first suction cup assembly 31. At this time, the diaphragm is clamped by the first suction cup assembly 31 and the second suction cup assembly 41. Then, the first suction cup assembly 31 breaks the vacuum, and simultaneously, the second suction cup generates negative pressure to suck up the diaphragm, realizing the transfer of the diaphragm from the first cleaning assembly 3 to the second cleaning assembly 4. Subsequently, driven by the third driving device 45, the second suction cup assembly 41 is reset; driven by the third linear module 43, the second suction cup assembly 41 drives the diaphragm to pass through the second dust removal device 42, and its surface is cleaned by the second dust removal device 42.

[0034] The unloading assembly 5 includes multiple unloading bins 51, and the second suction cup assembly 41 moves the film to the unloading bin 51. The unloading bin 51 includes a second carrier plate 52, third positioning rods 53 arranged on both sides of the second carrier plate 52 along the X direction, and fourth positioning rods 54 arranged on both sides of the second carrier plate 52 along the Y direction.

[0035] In this embodiment, the second suction cup assembly 41 stops directly above the unloading bin 51 after passing completely through the second dust removal device 42 along the X direction. At this time, the diaphragm on the second suction cup assembly 41 corresponds to the unloading bin 51; the third driving device 45 drives the diaphragm downward to approach the second carrier plate 52, and then breaks the vacuum to place the diaphragm on the second carrier plate 52. During this process, the inclined surfaces at the upper ends of the third positioning rod 53 and the fourth positioning rod 54 play a guiding role, which can prevent large displacement of the diaphragm during placement. The lower end of the second carrier plate 52 is provided with a second lifting device (not shown in the figure). When the second carrier plate is placed with one or a certain number of diaphragms, the second lifting device drives the second carrier plate downward a certain distance, so that the uppermost diaphragm is always at the same height.

[0036] The above embodiments are merely illustrative of the technical concept and features of the present invention, intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and should not be construed as limiting the scope of protection of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention.

Claims

1. A fully automatic dry ultrasonic dust removal device for membrane materials, characterized in that, Including machine tools; The feeding assembly, set on the machine base, includes multiple feeding bins for storing film sheets; The transfer assembly includes multiple suction nozzles, which are divided into at least two groups. When picking up a membrane at the hopper, the two groups of suction nozzles move up and down alternately. The first cleaning component includes a first suction cup assembly and a first dust removal device disposed above the first suction cup assembly, wherein the membrane at the transfer assembly carried by the first suction cup assembly passes under the first dust removal device. The second cleaning component includes a second suction cup assembly and a second dust removal device disposed below the second suction cup assembly, wherein the second suction cup assembly carries the diaphragm at the first suction cup assembly and passes over the second dust removal device. The feeding assembly includes multiple feeding bins, and the second suction cup assembly moves the membrane to the feeding bins.

2. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 1, characterized in that: The transfer assembly includes a first support frame connected to the machine tool via a first linear module, and a mounting plate connected to the first support frame via a first driving device with a vertical driving direction. Multiple sets of pickup assemblies are connected to the mounting plate. The suction nozzle is disposed on the pickup assembly.

3. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 2, characterized in that: The pickup component is provided with four suction nozzles, which are arranged in a rectangular pattern. After the four suction nozzles simultaneously pick up the same membrane, the two suction nozzles arranged at opposite corners move up and down simultaneously, and the two suction nozzles arranged adjacently move up and down sequentially.

4. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 2, characterized in that: The pickup assembly further includes a pressing device, which includes a second driving device connected to the mounting plate with a vertical driving direction and a pressing plate connected to the second driving device. The pressure plate moves vertically to a position higher or lower than the lower end face of the suction nozzle under the drive of the second driving device.

5. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 1, characterized in that: The feeding hopper includes a first carrier plate, two first positioning rods arranged on both sides of the first carrier plate along the X direction, and two second positioning rods arranged on both sides of the first carrier plate along the Y direction; The diaphragm is placed on the first carrier plate and positioned between the first positioning rod and the second positioning rod.

6. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 1, characterized in that: A second linear module is connected below the first suction cup assembly, and the second linear module can drive the first suction cup assembly to move in the X direction; The upper surface of the first suction cup assembly is flat and has multiple sets of negative pressure holes.

7. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 1, characterized in that: The first cleaning component includes an adhesive component disposed on the side of the first dust removal device near the feeding component. The adhesive component includes a first bracket connected to the first dust removal device via a fourth driving device with a vertical driving direction, a rubber-coated roller and an adhesive roller disposed on the first bracket, the adhesive roller being tangentially disposed at the upper end of the rubber-coated roller, the two being parallel to each other and having an axial direction of Y. The fourth driving device can drive the rubber-coated roller downwards through the first bracket until it contacts the diaphragm on the first suction cup assembly.

8. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 1, characterized in that: The second cleaning component also includes a second support frame connected to the machine via a third linear module, the third linear module driving the second support frame to move in the X direction; The second support frame is also connected to the upper end of the second suction cup assembly via a third driving device with a vertical driving direction, and the second suction cup assembly can be driven to move in the vertical direction via the third driving device.

9. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 8, characterized in that: The lower end face of the second suction cup assembly is flat and has multiple sets of negative pressure holes.

10. The fully automatic dry ultrasonic dust removal equipment for membrane materials according to claim 1, characterized in that: The feeding bin includes a second carrier plate, a third positioning rod arranged on both sides of the second carrier plate along the X direction, and a fourth positioning rod arranged on both sides of the second carrier plate along the Y direction. The second suction cup assembly transfers the diaphragm onto the second carrier plate, with the diaphragm positioned between the third positioning rod and the fourth positioning rod.

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