CN113332778B - Automatic slag-discharging filter for circuit board manufacture procedure - Google Patents
Automatic slag-discharging filter for circuit board manufacture procedure Download PDFInfo
- Publication number
- CN113332778B CN113332778B CN202010099248.3A CN202010099248A CN113332778B CN 113332778 B CN113332778 B CN 113332778B CN 202010099248 A CN202010099248 A CN 202010099248A CN 113332778 B CN113332778 B CN 113332778B
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- filter tank
- tank
- slag
- filter
- base
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
- B01D33/0346—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
Abstract
The invention relates to an automatic slag discharge filtering device for a circuit board manufacturing process, which comprises a base, a filtering tank, a vibration assembly and a connecting assembly, wherein the base is provided with a groove; the base is provided with a liquid collecting tank, the filter tank is positioned above the liquid collecting tank, protrudes out of one side of the liquid collecting tank towards the direction of a row of residues and is used for filtering the lotion mixed with the membrane residues; a row of slag openings are formed in one side wall of the filter tank, which protrudes out of the liquid collecting tank, and a filter screen is arranged on the bottom wall of the filter tank; the connecting assembly is connected with the base and the filter tank, and the filter tank can reciprocate relative to the base along the slag discharge direction; the oscillation assembly is connected with the filter disc and drives the filter tank to reciprocate along the deslagging direction; therefore, the membrane slag in the filter tank can be automatically discharged to the outside in the slag discharge direction, the use is more convenient, the service life of the washing agent can be prolonged, and the filtering efficiency can be improved.
Description
Technical Field
The invention relates to a filter device for filtering ink or dry film in a chemical cleaning agent in a developing or film stripping process of a circuit board, in particular to an automatic slag discharge filter device capable of automatically discharging the filtered ink or dry film.
Background
The processing equipment for developing and stripping the film of the circuit board in the prior art comprises a liquid collecting tank, a cleaning device and a pump; the cleaning device is arranged above the liquid collecting tank and sprays chemical lotion to the circuit board to peel off the ink or the dry film on the surface of the circuit board, and the lotion and the peeled ink or the peeled dry film (hereinafter referred to as film residue) fall into the liquid collecting tank; the bottom of the liquid collecting tank is provided with a fixed filter screen, and the lotion in the liquid collecting tank is conveyed to the cleaning device by the pump for recycling after the filter screen filters the membrane slag. However, the existing developing and stripping process equipment has the following disadvantages:
firstly, the peeled membrane slag will gradually accumulate on the filter screen in the liquid collecting tank, but the capacity of the liquid collecting tank is limited, and the filter screen is easily blocked by the membrane slag to reduce the filtering efficiency, so the membrane slag in the liquid collecting tank needs to be cleaned by manual mode frequently, which is time-consuming and labor-consuming in use.
Secondly, the membrane residues on the filter screen are still soaked in the lotion in the liquid collecting tank, and after the filter screen is used for a long time, a large amount of membrane residues are often soaked in the lotion on the filter screen, so that the lotion and the membrane residues generate chemical reaction to deteriorate, and the service life of the lotion is shortened.
Therefore, the developing and stripping process equipment of the circuit board in the prior art is to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, the present invention provides an automatic residue discharge filter device for circuit board manufacturing process to automatically discharge the film residue generated in the circuit board manufacturing process.
In order to achieve the above object, the present invention provides an automatic slag discharging filter device for a circuit board manufacturing process, which is used for filtering a detergent in the circuit board manufacturing process, wherein the detergent flows out from an inlet, and the automatic slag discharging filter device for the circuit board manufacturing process comprises:
a base having a sump;
a filter tank which is positioned above the liquid collecting tank and protrudes out of one side of the liquid collecting tank towards the direction of discharging slag, the filter tank is provided with a containing space and an upper opening which are communicated, and the upper opening is used for receiving the lotion flowing out from the inflow opening; a slag discharge opening is formed in one side wall, protruding out of the liquid collecting tank, of the filter tank, a filter screen is arranged on the bottom wall of the filter tank, the bottom wall of the filter tank is vertically and obliquely positioned above the liquid collecting tank, and one side edge of the bottom wall along the slag discharge direction is a slag discharge side edge; the slag discharging side is the top end of the inclined shape and protrudes out of the liquid collecting tank towards the slag discharging direction;
the oscillating assembly is connected with the filter tank and drives the filter tank to reciprocate and oscillate relative to the base, and the direction of the reciprocating oscillation displacement comprises a component facing the slag discharge opening; the oscillating assembly comprises: at least one filter tank fixing seat connected with the filter tank; a rotating shaft, which is rotatably arranged on the base and is not parallel to the slag discharge direction; the annular wall surface of the rotating shaft is protrudingly provided with at least one eccentric part, and the center line of the outer annular surface of the at least one eccentric part deviates from the rotating axis of the rotating shaft; the rotating shaft penetrates through the at least one filter tank fixing seat through the at least one eccentric part, and the at least one eccentric part can rotate relative to the at least one filter tank fixing seat; and the motor is arranged on the base and drives the rotating shaft to rotate.
When the cleaning agent is used, the cleaning agent (mixed with the membrane slag) used in the process of developing or stripping the circuit board is guided into the filter tank, the membrane slag in the cleaning agent is blocked by the filter screen and is collected in the filter tank, and the clean cleaning agent penetrates through the filter screen and flows downwards into the liquid collecting tank for recycling.
The invention has the advantages that the flat-plate-shaped filter screen in the prior art is changed into the filter tank, the filter tank is positioned above the liquid collecting tank and is connected with the oscillating assembly, and the oscillating assembly drives the filter tank to reciprocate and oscillate and displace relative to the base, so that the membrane slag can be driven by oscillation to move back and forth and be uniformly distributed, and can not be fixedly accumulated in the area where the lotion flows into the fixed groove. When the accumulated height of the film slag is higher than the height of the bottom edge of the slag discharge opening, the direction of the reciprocating oscillation displacement comprises a component towards the slag discharge opening, and the film slag adjacent to the slag discharge opening can cross the slag discharge opening to be discharged outwards after being oscillated, namely, the effect of the oscillation assembly is equal to that of pushing the film slag towards the slag discharge opening so that the film slag is automatically discharged; the invention thus has the following advantages:
firstly, the filtered membrane slag can be automatically discharged from the slag discharge opening, so that the membrane slag on the liquid collecting tank or the filter screen does not need to be cleaned in a manual mode, only a membrane slag collecting tank or a membrane slag conveying belt needs to be arranged below the slag discharge opening, and time and labor are saved in use. In addition, vibrate the subassembly and vibrate the filter screen, also can improve the easy condition of blockking the filter screen of membrane sediment, increase filtration efficiency.
And secondly, because the liquid collecting tank is not provided with film residues and a large amount of film residues are not accumulated on the filter screen, the contact between the film residues and the lotion can be reduced, and the service life of the lotion is prolonged.
Furthermore, in the above-mentioned automatic slag discharging filter device for circuit board manufacturing process, the automatic slag discharging filter device further has a connecting component, which connects the base and the filter tank, and is disposed at an interval with the oscillating component along the slag discharging direction.
Further, in the above automatic residue discharge filtering apparatus for manufacturing circuit boards, the connecting assembly has at least one elastic member disposed on the base and pushing the filter tank upward.
Further, in the above automatic residue discharge filtering device for manufacturing circuit board, the at least one elastic member is a compression spring, one end of the at least one elastic member is connected to the base, and the other end of the at least one elastic member is upwardly abutted against the filtering tank.
Furthermore, in the above automatic residue discharge filtering apparatus for manufacturing circuit boards, an included angle formed between the bottom wall of the filtering tank and a horizontal plane is between 1 and 10 degrees.
Furthermore, in the above automatic residue discharge filter device for manufacturing circuit boards, the filter tank further has two opposite side walls and at least one residue discharge guide portion; the slag discharge opening is positioned between the two opposite side walls; the at least one slag discharge guide portion protrudes from at least one of the side walls to make the width of the accommodating space of the filter tank gradually decrease toward the slag discharge opening.
Furthermore, the automatic slag discharging and filtering device for the circuit board manufacturing process further comprises a slag collecting groove, wherein a plurality of casters are arranged at the bottom of the slag collecting groove; the slag collecting groove is movably arranged below the slag discharging opening of the filter tank and can move towards the direction far away from the filter tank.
Further, the above-mentioned automatic residue discharge filtering apparatus for circuit board manufacturing process comprises: the filter tank is further provided with two opposite side walls, and the slag discharge opening is positioned between the two opposite side walls; the automatic slag discharging filter device is further provided with a rectifying tank, the rectifying tank is positioned on one side of the filter tank relative to the slag discharging direction and is used for being positioned below the inflow port, and a discharge port is formed above the filter tank by the rectifying tank, wherein the discharge port extends to the two opposite side walls of the filter tank along the slag discharging direction.
Drawings
Fig. 1 is a perspective external view of a first embodiment of the present invention.
Fig. 2 is a partially exploded view of a first embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a first embodiment of the present invention.
Fig. 4 is a schematic top view of a first embodiment of the present invention.
Fig. 5 is a partial side view of a spindle of a first embodiment of the present invention.
Fig. 6 is an end view of the shaft of the first embodiment of the present invention.
Fig. 7 is a partial perspective sectional view of a rotating shaft according to a first embodiment of the present invention.
Fig. 8 to 11 are schematic diagrams illustrating the operation of the oscillating assembly according to the first embodiment of the invention.
Fig. 12 to fig. 15 are schematic diagrams illustrating the operation of the oscillation assembly driving the filter tank to oscillate and displace according to the first embodiment of the present invention.
Fig. 16 is a side view schematic of a second embodiment of the invention.
Detailed Description
The technical means adopted by the invention to achieve the preset purpose are further described below by combining the accompanying drawings and the preferred embodiments of the invention.
Referring to fig. 1 to 3, the automatic slag discharging and filtering apparatus for circuit board manufacturing process of the present invention includes: a base 10, a filter tank 20 and a vibration component 30; and in the present embodiment, further comprises a connecting component 40 and a slag collecting groove 50. The invention relates to a filtering device for filtering a lotion B in the process of manufacturing a circuit board in the process of developing or stripping a film of the circuit board. The lotion B mixed with the membrane slag C flows out of the invention through an inlet A, and simultaneously a pump (not shown) pumps the lotion B filtered from the membrane slag C out of the invention for recycling.
The base 10 has a liquid collecting tank 11, the filter tank 20 is located above the liquid collecting tank 11 and protrudes to one side of the liquid collecting tank 11 in a slag discharging direction D; the filter tank 20 is provided with an accommodating space 25 and an upper opening 26 which are communicated, and the upper opening 26 is positioned below the inflow opening A and is used for receiving the washing agent B mixed with the membrane slag C; the filter tank 20 is formed with a row of slag openings 21 on a side wall thereof protruding from the sump 11, the bottom wall 22 of the filter tank 20 is provided with a screen 221, and the screen 221 is preferably woven of metal wire.
In the present embodiment, the bottom wall 22 is planar, most area of the bottom wall 22 is the filter screen 221, the bottom wall 22 is disposed on the filter tank 20 in an up-down inclined manner, and an included angle formed between the bottom wall 22 and the horizontal plane is preferably between 1 to 10 degrees; one side of the bottom wall 22 along the slag discharging direction D is a slag discharging side 222; the slag discharge side 222 is the top end of the inclined shape, and the slag discharge side 222 protrudes from the sump 11 in the slag discharge direction D and forms the bottom side periphery of the slag discharge opening 21.
As further shown in fig. 1 and fig. 4, in addition, the filtering tank 20 further has two opposite side walls 24 and a plurality of slag discharging guiding portions 23, and the slag discharging opening 21 is located between the two side walls 24; the plurality of slag discharge guides 23 protrude from the sidewall 24 such that the width of the receiving space 25 of the filter tank 20 is reduced toward the slag discharge opening 21. The slag discharge guide 23 can guide the film slag C to concentrate toward the center of the slag discharge side 222, so as to prevent the film slag C from scattering on the ground. The number of the slag discharge guide portions 23 is not limited to plural ones, and may be only one.
Referring to fig. 1, 2 and 7, the oscillating assembly 30 is connected to the filter tank 20 and drives the filter tank 20 to oscillate and displace reciprocally relative to the base 10, and the direction of the oscillating and displacing reciprocally includes a component toward the residue discharge opening 21. In the present embodiment, the oscillating assembly 30 has two filter tank holders 31, a rotating shaft 32 and a motor 33; the filter tank fixing seat 31 is connected with the filter tank 20, the rotating shaft 32 is rotatably arranged on the base 10, and the rotating shaft 32 is not parallel to the slag discharging direction D.
As further shown in fig. 5 and fig. 6, two eccentric portions 321 are formed on the annular wall surface of the rotating shaft 32 in a protruding manner, a center line L1 of the outer annular surface of the eccentric portion 321 is offset from the rotating axis L2 of the rotating shaft 32, and a distance between the center line L1 and the rotating axis L2 is defined as an eccentric distance E, which is preferably between 1.5 and 4 mm, as viewed from one end of the rotating shaft 32; the rotating shaft 32 has two eccentric portions 321 respectively penetrating through the two filter tank fixing bases 31, and the two eccentric portions 321 can rotate relative to the two filter tank fixing bases 31 respectively. The motor 33 is provided on the base 10 and drives the rotating shaft 32 to rotate the eccentric portion 321 at a high speed.
Referring to fig. 8 to 11, when the rotating shaft 32 is driven by the motor 33 to rotate, the eccentric portion 321 of the rotating shaft 32 moves around the rotation axis L2 of the rotating shaft 32 at a high speed, and further drives the filter tank fixing seat 31 to move around the rotation axis L2 of the rotating shaft 32; the filter tank 20 is driven by the filter tank fixing seat 31 to reciprocate relative to the base 10 (as shown in fig. 12 to 15), and the rotation axis 32 is not parallel to the slag discharge direction D, so the direction of the reciprocating oscillating displacement of the filter tank 20 includes a component toward the slag discharge opening 21.
The shaft 32 is preferably perpendicular to the discharging direction D and is a horizontal shaft, but not limited thereto, and the shaft 32 can also be a vertical shaft perpendicular to the discharging direction D. In addition, in the embodiment, the oscillating assembly 30 drives the filter tank 20 by using the eccentric portion 321 of the rotating shaft 32, so that the reciprocating oscillating displacement of the filter tank 20 is substantially circular motion, but not limited thereto, the oscillating assembly 30 may have different structures according to circumstances, so that the oscillating assembly 30 drives the filter tank 20 to perform linear reciprocating motion, and the linear motion may be inclined with respect to the slag discharging direction D (i.e. the linear motion may not be parallel to the slag discharging direction D). In addition, the oscillation component 30 can also be separately disposed on the filter tank 20 and not connected to the base 10, for example, the oscillation component 30 can adopt a vibration mechanism having the same principle as an electric toothbrush or a massage stick, and at this time, the oscillation component 30 can drive the filter tank 20 to oscillate and displace even if not connected to the base 10.
The speed of the motor 33 is preferably greater than 1300 revolutions per minute. In this embodiment, the motor 33 drives the shaft 32 through a transmission assembly 35, the shaft 32 is rotatably connected to the base through the bearing seat 12, the two filter tank holders 31 are connected to each other through a sleeve 34, and the sleeve 34 is sleeved outside the shaft 32 to prevent the shaft 32 from being rusted.
Referring to fig. 1 to 3, the connecting assembly 40 is connected to the base 10 and the filter tank 20, and is spaced apart from the oscillating assembly 30 along the slag discharging direction D. In the present embodiment, the connecting assembly 40 has two elastic members 41, and the elastic members 41 are preferably compression springs. The two elastic members 41 are disposed on the base 10, and are respectively located below two side walls 24 of the filtering tank 20 perpendicular to the slag discharge direction D, and upwardly abut against the filtering tank 20, and the two elastic members 41 and the rotating shaft 32 are disposed at intervals along the slag discharge direction D, so that the axial elastic force of the elastic members 41 can support the filtering tank 20 above the liquid collecting tank 11, and meanwhile, the elastic members 41 not only allow the filtering tank 20 to reciprocate along the slag discharge direction D, but also can enhance the oscillation effect of the oscillation assembly 30 to enable the filtering tank 20 to reciprocate along the slag discharge direction D by the radial elastic force of the elastic members 41. The connecting assembly 40 is not limited to a plurality of compression springs, and for example, it may have only a single compression spring, or may be an extension spring connected to the top surface of the filter tank 20, or may have a plurality of rollers connected to the bottom of the filter tank 20, and the outer ring surface of the rollers is abutted against the top surface of the base, or even the connecting assembly 40 may have other forms of structures, so long as the connecting assembly 40 connects the base 10 and the filter tank 20, and the filter tank 20 can reciprocate in the slag discharge direction D relative to the base 10.
Since the oscillating assembly 30 and the filter tank 20 are substantially pivotally connected in the embodiment, the connecting assembly 40 is further provided to enable the filter tank 20 to obtain sufficient support, but not limited thereto, the connecting assembly 40 may not be provided in the present invention, and the filter tank 20 is completely supported by the oscillating assembly 30.
The slag collecting tank 50 is movably disposed below the slag discharging opening 21 of the filtering tank 20 to collect the membrane slag C discharged from the filtering tank 20. The bottom of the slag collecting trough 50 is provided with a plurality of casters 51, and the casters 51 enable the slag collecting trough 50 to move in a direction away from the filtering trough 20 (for example, in the slag discharging direction D) so as to clean the film slag C in the slag collecting trough 50.
When the cleaning agent B is used, the cleaning agent B (mixed with the membrane slag C) used in the process of developing or stripping the circuit board is guided into the filter tank 20 through the inflow port A, the membrane slag C in the cleaning agent B is blocked by the filter screen 221 and is collected in the filter tank 20, and the clean cleaning agent B penetrates through the filter screen 221 and flows downwards into the liquid collecting tank 11 for recycling.
The rotating shaft 32 of the oscillating assembly 30 is driven by the motor 33, so that the filter tank fixing seat 31 moves around the rotating axis L2 of the rotating shaft 32, and the filter tank 20 reciprocates along the deslagging direction D. Specifically, when the filter tank 20 moves in the slag discharge direction D, the membrane slag C is moved in the slag discharge direction D by the filter tank 20 (as shown in fig. 15); when the filter tank 20 moves in the opposite slag discharge direction D (as shown in fig. 11), the part of the membrane slag C adjacent to the slag discharge opening 21 does not move along the filter tank 20 due to its own inertia, and thus passes over the slag discharge opening 21 and falls down into the slag collection tank 50; when the filter tank 20 moves downward, the membrane slag C can be forcibly separated from the filter screen 221, and the filter screen 221 is prevented from being easily clogged with the membrane slag C.
Finally, referring to fig. 16, the second embodiment of the present invention further includes a rectifying tank 60A, the rectifying tank 60A is located at one side of the filtering tank 20A opposite to the slag discharging direction D and located below the inlet a to receive the detergent B, the rectifying tank 60A is formed with a drain 61A above the filtering tank 20A, wherein the rectifying tank 60A and the drain 61A both extend to two opposite sides of the filtering tank 20A along the vertical slag discharging direction D. By further providing a rectifying tank 60A, the washing agent B flowing out from the inlet A first enters the rectifying tank 60A and then enters the filtering tank 20A in an overflow manner across the outlet 61A, thereby reducing the flow rate of the washing agent B entering the filtering tank 20A to enhance the filtering effect.
In summary, in the present invention, the filter tank 20 is disposed above the liquid collecting tank 11 and protrudes from the liquid collecting tank 11 in the slag discharging direction D, and the oscillating assembly 30 drives the filter tank 20 to oscillate back and forth in the slag discharging direction D, so that the membrane slag C in the filter tank 20 is automatically discharged to the outside of the present invention in the slag discharging direction D, and the present invention is more time-saving and labor-saving in use.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. An automatic slag discharging filter device for circuit board manufacturing process is characterized in that the device is used for filtering a lotion in the circuit board manufacturing process, the lotion flows out from an inflow port, and the automatic slag discharging filter device for the circuit board manufacturing process comprises:
a base having a sump;
a filter tank which is positioned above the liquid collecting tank and protrudes out of one side of the liquid collecting tank towards the direction of discharging slag, the filter tank is provided with a containing space and an upper opening which are communicated, and the upper opening is used for receiving the lotion flowing out from the inflow opening; a slag discharge opening is formed in one side wall, protruding out of the liquid collecting tank, of the filter tank, a filter screen is arranged on the bottom wall of the filter tank, the bottom wall of the filter tank is vertically and obliquely positioned above the liquid collecting tank, and one side edge of the bottom wall along the slag discharge direction is a slag discharge side edge; the slag discharging side is the top end of the inclined shape and protrudes out of the liquid collecting tank towards the slag discharging direction;
the oscillating assembly is connected with the filter tank and drives the filter tank to reciprocate and oscillate relative to the base, and the direction of the reciprocating oscillation displacement comprises a component facing the slag discharge opening; the oscillating assembly comprises:
at least one filter tank fixing seat connected with the filter tank;
a rotating shaft, which is rotatably arranged on the base and is not parallel to the slag discharge direction; the annular wall surface of the rotating shaft is protrudingly provided with at least one eccentric part, and the center line of the outer annular surface of the at least one eccentric part deviates from the rotating axis of the rotating shaft; the rotating shaft penetrates through the at least one filter tank fixing seat through the at least one eccentric part, and the at least one eccentric part can rotate relative to the at least one filter tank fixing seat;
and the motor is arranged on the base and drives the rotating shaft to rotate.
2. The apparatus of claim 1, further comprising a connection member connecting the base and the filter tank and spaced apart from the vibration member along the deslagging direction.
3. The apparatus of claim 2, wherein the connecting member has at least one elastic member disposed on the base and pushing the filter tank upward.
4. The apparatus of claim 3, wherein the at least one elastic member is a compression spring having one end connected to the base and the other end upwardly abutting against the filter tank.
5. The apparatus of claim 1, wherein the bottom wall of the filter tank forms an angle with a horizontal plane between 1 and 10 degrees.
6. The apparatus of claim 1, wherein the filter tank further comprises two opposite sidewalls and at least one row of slag guiding portion; the slag discharge opening is positioned between the two opposite side walls; the at least one slag discharge guide portion protrudes from at least one of the side walls to make the width of the accommodating space of the filter tank gradually decrease toward the slag discharge opening.
7. The apparatus of claim 1, further comprising a slag collection tank, wherein the bottom of the slag collection tank is provided with a plurality of casters; the slag collecting groove is movably arranged below the slag discharging opening of the filter tank and can move towards the direction far away from the filter tank.
8. The automatic slag discharge filter device for circuit board manufacturing process according to claim 1, wherein:
the filter tank is further provided with two opposite side walls, and the slag discharge opening is positioned between the two opposite side walls;
the automatic slag discharging filter device is further provided with a rectifying tank, the rectifying tank is positioned on one side of the filter tank relative to the slag discharging direction and is used for being positioned below the inflow port, and a discharge port is formed above the filter tank by the rectifying tank, wherein the discharge port extends to the two opposite side walls of the filter tank along the slag discharging direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010099248.3A CN113332778B (en) | 2020-02-18 | 2020-02-18 | Automatic slag-discharging filter for circuit board manufacture procedure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010099248.3A CN113332778B (en) | 2020-02-18 | 2020-02-18 | Automatic slag-discharging filter for circuit board manufacture procedure |
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| CN113332778A CN113332778A (en) | 2021-09-03 |
| CN113332778B true CN113332778B (en) | 2023-02-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209221669U (en) * | 2018-12-18 | 2019-08-09 | 湖南省森林木歌游农业产业发展有限责任公司 | A kind of vibrating screen |
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| CN208227449U (en) * | 2018-05-04 | 2018-12-11 | 珠海精路电子有限公司 | One kind moving back film device |
| CN108977273A (en) * | 2018-07-27 | 2018-12-11 | 安徽赵老五油脂有限公司 | A kind of sesame oil production filter device being conveniently replaceable strainer |
| CN211799252U (en) * | 2020-02-18 | 2020-10-30 | 扬博科技股份有限公司 | Automatic slag-discharging filter for circuit board manufacture procedure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209221669U (en) * | 2018-12-18 | 2019-08-09 | 湖南省森林木歌游农业产业发展有限责任公司 | A kind of vibrating screen |
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