CN112071540B - PCB surface treatment device based on thermistor processing usefulness - Google Patents
PCB surface treatment device based on thermistor processing usefulness Download PDFInfo
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- CN112071540B CN112071540B CN202011071266.7A CN202011071266A CN112071540B CN 112071540 B CN112071540 B CN 112071540B CN 202011071266 A CN202011071266 A CN 202011071266A CN 112071540 B CN112071540 B CN 112071540B
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- heat conduction
- pcb
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- barrel
- heat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/26—Cleaning or polishing of the conductive pattern
Abstract
The invention discloses a PCB surface treatment device for thermistor processing, which belongs to the technical field of resistor processing and comprises a PCB, wherein the surface of the PCB is provided with convex residual materials; the softening assembly comprises a cylinder body, wherein a heat conduction shell is embedded in the surface of the cylinder body, the heat conduction shell is of an arc structure, and part of the heat conduction shell extends out of the outer side of the cylinder body; the ejection assemblies are arranged at two ends of the cylinder body; according to the invention, the high-temperature heat-conducting shell is contacted with one side of the convex residual materials, so that the convex residual materials are locally softened at high temperature, meanwhile, hot air in the heat-conducting cavity is introduced into the heat-conducting pipe through the heat-conducting pipe, heat is conducted into the hollow pipe, the ejector rod is driven to move out towards the inclined upper part, and the convex residual materials which are just softened and separated are ejected, so that the cutting blade cuts the separation part of the barrel body and the convex residual materials, and thus the convex residual materials are completely removed from the surface of the PCB without damage, the quality of surface treatment is ensured, the damage to the PCB is reduced, and the yield is improved.
Description
Technical Field
The invention relates to the technical field of resistor processing, in particular to a PCB surface treatment device for processing based on a thermistor.
Background
Thermistors are a class of sensitive elements, and are classified into positive temperature coefficient thermistors and negative temperature coefficient thermistors according to the difference in temperature coefficient. Thermistors are typically temperature sensitive and exhibit different resistance values at different temperatures. The positive temperature coefficient thermistor has a resistance value which is larger as the temperature is higher, and the negative temperature coefficient thermistor has a resistance value which is lower as the temperature is higher, and they are both semiconductor devices.
When a PCB is processed, the surface of the PCB is likely to have convex-shaped residues due to low production quality, burrs or protrusions on the surface of the PCB are generally removed after the PCB is formed, most of the PCB is operated through a scraper at present, but the scraper cannot effectively remove the convex-shaped residues with large thickness, or the PCB around the residues is prone to collapse due to overlarge acting force, or the convex-shaped materials cannot be completely removed due to the undersize acting force, so that the finished product quality of the PCB is reduced, and therefore, the PCB surface processing device based on thermistor processing is provided.
Disclosure of Invention
The present invention is directed to a surface treatment apparatus for PCB based thermistor processing to solve the above problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: a PCB surface treatment device for thermistor processing comprises,
the PCB comprises a PCB plate, wherein the surface of the PCB plate is provided with convex residual materials;
the softening assembly comprises a cylinder body, wherein a heat conduction shell is embedded in the surface of the cylinder body, the heat conduction shell is of an arc structure, and part of the heat conduction shell extends out of the outer side of the cylinder body;
the ejection assemblies are arranged at two ends of the cylinder body;
the transverse moving assembly comprises a guide plate, an operating shaft penetrates through the guide plate in a movable mode, and the operating shaft penetrates through the inner cavity of the cylinder body.
Further, the inner cavity of the heat conduction shell is provided with a heat conduction block which is matched with the shape of the heat conduction shell and clings to the inner wall of the heat conduction shell, one side of the heat conduction block is provided with a heating wire, the heating wire is attached to the surface of the heat conduction block in a snake shape, and the heating wire is electrically connected with external equipment through a power line.
Furthermore, a heat conduction cavity is formed in the inner cavity of the heat conduction shell, a preheating plate is arranged on the outer surface of the heat conduction shell and close to the lower end of the heat conduction shell, the preheating plate is of an arc-shaped structure, and one end of the preheating plate is fixedly connected with the heat conduction shell.
Furthermore, the ejection assembly comprises mounting blocks fixedly connected with two ends of the barrel, inclined hollow pipes are arranged on the side walls of the mounting blocks, and ejector rods are movably inserted in the hollow pipes.
Furthermore, the outer wall of the hollow pipe is sleeved with a heat conduction pipe, the inner surface of the heat conduction pipe is in close contact with the outer surface of the hollow pipe, and the heat conduction pipe is connected with the heat conduction cavity through the heat conduction pipe.
Further, the ejector rod is of an L-shaped structure, and the inclination angle of the ejector rod is 60-70 degrees.
Further, be equipped with on the barrel and cut the gluey subassembly, cut gluey subassembly including running through the axle sleeve of pegging graft in barrel inner chamber oblique below, the activity is pegged graft on the axle sleeve and is had the axis of rotation, axis of rotation bottom fixed connection cutting blade, just the axis of rotation top is connected with the impeller.
Further, the air cavity that the barrel inner chamber was seted up is located to the impeller, the air cavity passes through ventilation hole and external intercommunication, the barrel inner chamber is equipped with the air guide return bend with air cavity intercommunication, air guide return bend one end is run through the barrel surface and is extended to the outside and the tip is equipped with the connector.
Further, the barrel lower surface is equipped with the spiller, the spiller is the slope form and sets up along the tangent line on barrel surface, just the length of spiller and the length adaptation of barrel.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the high-temperature heat-conducting shell is contacted with one side of the convex residual materials, so that the convex residual materials are locally softened at high temperature, the cylinder body can drive the contact depth of the heat-conducting shell and the convex residual materials to be increased, meanwhile, hot air in the heat-conducting cavity is led into the heat-conducting tube through the heat-conducting tube, heat is conducted into the hollow tube, so that the air in the hollow tube is expanded, the ejector rod is driven to move out towards the inclined upper part, the convex residual materials which are just softened and separated are ejected, and high-speed air flow is introduced to drive the impeller to rotate, so that the separation part of the cylinder body and the convex residual materials is cut by the cutting blade, and thus the convex residual materials are completely removed from the surface of the PCB without damage, the surface treatment quality is ensured, the damage to the PCB is also reduced, and the yield is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a softening assembly of the present invention;
FIG. 3 is a schematic view of the structure of the ejection assembly of the present invention;
FIG. 4 is a schematic view of a glue cutting assembly according to the present invention.
In the figure: 100. a PCB board; 101. a raised residue; 200. a softening component; 201. a barrel; 202. a thermally conductive housing; 203. a heat conducting block; 204. an electric heating wire; 205. a thermally conductive cavity; 206. preheating a plate; 207. a power line; 300. ejecting the assembly; 301. mounting blocks; 302. empty pipe; 303. a top rod; 304. a heat transfer tube; 305. a heat conducting pipe; 400. cutting the rubber component; 401. a shaft sleeve; 402. a rotating shaft; 403. a cutting blade; 404. an impeller; 405. an air chamber; 406. an air guide bent pipe; 500. a traversing assembly; 501. a guide plate; 502. an operating shaft; 600. a scraper knife.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a PCB surface treatment apparatus for thermistor-based processing, including a PCB 100, wherein the surface of the PCB 100 has a protruding residue 101; the softening assembly 200 comprises a cylinder 201, wherein a heat conduction shell 202 is embedded in the surface of the cylinder 201, the heat conduction shell 202 is of an arc-shaped structure, and part of the heat conduction shell 202 extends out of the cylinder 201; the ejection assemblies 300 are arranged at two ends of the cylinder body 201; the traverse component 500, the traverse component 500 includes the deflector 501, the activity runs through has operating axis 502 on the deflector 501, operating axis 502 runs through the barrel 201 inner chamber, and staff's accessible operating axis 502 orders about the barrel 201 and moves along PCB board 100 surface, softens separation and clears away the operation to protruding form defective work 101.
Referring to fig. 2, a heat conduction block 203 adapted to the shape of the heat conduction shell 202 and tightly attached to the inner wall of the heat conduction shell is disposed in the inner cavity of the heat conduction shell 202, a heating wire 204 is disposed on one side of the heat conduction block 203, the heating wire 204 is attached to the surface of the heat conduction block 203 in a serpentine shape, the heating wire 204 is electrically connected to an external device through a power line 207, power is supplied to the heating wire through the power line 207, the generated high temperature is conducted to the surface of the heat conduction shell 202 through the heat conduction block 203, and when the heat conduction shell 202 contacts with the protruded residue 101, the high temperature is conducted to the surface of the protruded residue 101, so that the protruded residue 101 is softened, and the heat conduction shell 202 is driven by the movement of the barrel 201 to extend into the protruded residue 101.
Referring to fig. 2, a heat conducting cavity 205 is formed in an inner cavity of the heat conducting casing 202, and a preheating plate 206 is disposed on an outer surface of the heat conducting casing 202 near a lower end, so that heat on the surface of the heat conducting casing 202 is synchronously conducted to the preheating plate 206, the preheating plates 206 on two sides preheat two ends of the protruded residues 101, and the protruded residues 101 can be better pulled and separated by matching with the heat conducting casing 202, the preheating plate 206 is in an arc structure, and one end of the preheating plate 206 is fixedly connected to the heat conducting casing 202.
Referring to fig. 3, the ejection assembly 300 includes an installation block 301 fixedly connected to two ends of the barrel 201, an inclined hollow tube 302 is disposed on a side wall of the installation block 301, the hollow tube 302 is a glass tube and has a good heat-conducting property, and a push rod 303 is movably inserted into the hollow tube 302.
Referring to fig. 2 and fig. 3, a heat conducting pipe 305 is sleeved on an outer wall of the hollow pipe 302, an inner surface of the heat conducting pipe 305 is in close contact with an outer surface of the hollow pipe 302, the heat conducting pipe 305 is connected with the heat conducting cavity 205 through a heat conducting pipe 304, hot air in the heat conducting cavity 205 is introduced into the heat conducting pipe 305 through the heat conducting pipe 304, heat is conducted into the hollow pipe 302, so that the air in the hollow pipe 302 expands, the push rod 303 is driven to move out obliquely upward, and the just softened and separated convex residue 101 is pushed open.
Referring to fig. 3, the lift pins 303 are L-shaped, and the tilt angle of the lift pins 303 is 60-70 °, and the tilted lift pins 303 can cooperate with the advancing heat conductive shell 202 to pull and separate the softened convex residues 101, so that the convex residues 101 are more easily separated from the surface of the PCB 100.
Referring to fig. 2 and 4, the barrel 201 is provided with a rubber cutting assembly 400, the rubber cutting assembly 400 includes a shaft sleeve 401 inserted through an oblique lower portion of the inner cavity of the barrel 201, a rotating shaft 402 is movably inserted into the shaft sleeve 401, a cutting blade 403 is fixedly connected to a bottom end of the rotating shaft 402, and a top end of the rotating shaft 402 is connected to an impeller 404.
Referring to fig. 4, an impeller 404 is disposed in an air cavity 405 formed in an inner cavity of a cylinder 201, the air cavity 405 is communicated with the outside through a vent hole, an air guide bent pipe 406 communicated with the air cavity 405 is disposed in the inner cavity of the cylinder 201, one end of the air guide bent pipe 406 penetrates through the surface of the cylinder 201 and extends to the outside, and a connector is disposed at an end of the air guide bent pipe 406, an air outlet end of an external air supply device is connected with the air guide bent pipe 406 through the connector, high-speed air enters the air cavity 405, the impeller 404 is driven to rotate at a high speed, so as to drive a rotating shaft 402 to rotate, and a cutting blade 403 is driven to perform auxiliary cutting separation on separated convex residues 101, so that the convex residues 101 are completely removed from the surface of the PCB 100 without damage, thereby ensuring the quality of surface treatment, reducing the damage to the PCB 100, and improving the yield.
Referring to fig. 2, a scraper 600 is disposed on the lower surface of the cylinder 201, the scraper 600 can scrape incomplete residual materials, so as to improve the quality of surface treatment of the PCB 100, the scraper 600 is disposed along a tangent line of the surface of the cylinder 201 in an inclined shape, and the length of the scraper 600 is adapted to the length of the cylinder 201.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A PCB surface treatment device based on thermistor processing usefulness which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the PCB comprises a PCB (100), wherein the surface of the PCB (100) is provided with a convex residual material (101);
the softening assembly (200) comprises a cylinder body (201), wherein a heat conduction shell (202) is embedded in the surface of the cylinder body (201), the heat conduction shell (202) is of an arc-shaped structure, and part of the heat conduction shell (202) extends out of the outer side of the cylinder body (201);
the ejection assemblies (300) are arranged at two ends of the cylinder body (201);
the traversing assembly (500) comprises a guide plate (501), an operating shaft (502) is movably penetrated through the guide plate (501), and the operating shaft (502) penetrates through the inner cavity of the cylinder body (201); the inner cavity of the heat conduction shell (202) is provided with a heat conduction block (203) which is matched with the shape of the heat conduction shell and is tightly attached to the inner wall of the heat conduction shell, one side of the heat conduction block (203) is provided with an electric heating wire (204), the electric heating wire (204) is attached to the surface of the heat conduction block (203) in a snake shape, and the electric heating wire (204) is electrically connected with external equipment through a power line (207); the inner cavity of the heat conduction shell (202) is provided with a heat conduction cavity (205), a preheating plate (206) is arranged on the outer surface of the heat conduction shell (202) close to the lower end, the preheating plate (206) is of an arc-shaped structure, and one end of the preheating plate (206) is fixedly connected with the heat conduction shell (202).
2. The PCB surface treatment device for thermistor based processing according to claim 1, characterized in that: the ejection assembly (300) comprises mounting blocks (301) fixedly connected with two ends of the barrel body (201), an inclined hollow pipe (302) is arranged on the side wall of each mounting block (301), and an ejector rod (303) is movably inserted into each hollow pipe (302).
3. The PCB surface treatment device for thermistor based processing according to claim 2, characterized in that: the outer wall of the hollow pipe (302) is sleeved with a heat conduction pipe (305), the inner surface of the heat conduction pipe (305) is in close contact with the outer surface of the hollow pipe (302), and the heat conduction pipe (305) is connected with the heat conduction cavity (205) through a heat conduction pipe (304).
4. A surface treatment apparatus for PCB based thermistor processing according to claim 3, characterized in that: the ejector rod (303) is of an L-shaped structure, and the inclination angle of the ejector rod (303) is 60-70 degrees.
5. A surface treatment apparatus for PCB based thermistor processing according to claim 3, characterized in that: be equipped with on barrel (201) and cut gluey subassembly (400), cut gluey subassembly (400) including running through axle sleeve (401) of pegging graft in barrel (201) inner chamber oblique below, the activity is pegged graft on axle sleeve (401) has axis of rotation (402), axis of rotation (402) bottom fixed connection cutting blade (403), just axis of rotation (402) top is connected with impeller (404).
6. The PCB surface treatment device for thermistor based processing according to claim 5, characterized in that: impeller (404) are located in air chamber (405) that barrel (201) inner chamber was seted up, air chamber (405) are through ventilation hole and external intercommunication, barrel (201) inner chamber is equipped with air guide return bend (406) with air chamber (405) intercommunication, air guide return bend (406) one end runs through barrel (201) surface and extends to the outside and the tip is equipped with the connector.
7. The PCB surface treatment device for thermistor based processing according to claim 6, characterized in that: the lower surface of the barrel body (201) is provided with a scraper knife (600), the scraper knife (600) is arranged along the tangent line of the surface of the barrel body (201) in an inclined manner, and the length of the scraper knife (600) is matched with the length of the barrel body (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071266.7A CN112071540B (en) | 2020-10-09 | 2020-10-09 | PCB surface treatment device based on thermistor processing usefulness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071266.7A CN112071540B (en) | 2020-10-09 | 2020-10-09 | PCB surface treatment device based on thermistor processing usefulness |
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| CN112071540A CN112071540A (en) | 2020-12-11 |
| CN112071540B true CN112071540B (en) | 2022-01-04 |
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| CN1906542A (en) * | 2004-03-29 | 2007-01-31 | 麦克德米德印刷方案股份有限公司 | Apparatus and method for thermally developing flexographic printing elements |
| CN104368981A (en) * | 2014-11-27 | 2015-02-25 | 丹阳市腾辉液压机械有限公司 | Heating burr removal device of continuous forming machining series of hydraulic valve base plate |
| CN204470162U (en) * | 2015-02-27 | 2015-07-15 | 新乡职业技术学院 | A kind of decoration wallpaper scavenge unit |
| CN107054800A (en) * | 2017-03-27 | 2017-08-18 | 河南中烟工业有限责任公司 | Adhesive tape removal device |
| CN111347311A (en) * | 2020-03-02 | 2020-06-30 | 祥龙科技(深圳)有限公司 | PCB substrate burr clearing device for electronic equipment production |
-
2020
- 2020-10-09 CN CN202011071266.7A patent/CN112071540B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1906542A (en) * | 2004-03-29 | 2007-01-31 | 麦克德米德印刷方案股份有限公司 | Apparatus and method for thermally developing flexographic printing elements |
| CN104368981A (en) * | 2014-11-27 | 2015-02-25 | 丹阳市腾辉液压机械有限公司 | Heating burr removal device of continuous forming machining series of hydraulic valve base plate |
| CN204470162U (en) * | 2015-02-27 | 2015-07-15 | 新乡职业技术学院 | A kind of decoration wallpaper scavenge unit |
| CN107054800A (en) * | 2017-03-27 | 2017-08-18 | 河南中烟工业有限责任公司 | Adhesive tape removal device |
| CN111347311A (en) * | 2020-03-02 | 2020-06-30 | 祥龙科技(深圳)有限公司 | PCB substrate burr clearing device for electronic equipment production |
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| CN112071540A (en) | 2020-12-11 |
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Effective date of registration: 20211217 Address after: 518000 room 306, building a, well a and well D, floor 3, libaoyi bioengineering building, No. 25, Shihua Road, Fubao community, Fubao street, Futian District, Shenzhen, Guangdong Province Applicant after: Shenzhen Shenlin Electronics Co.,Ltd. Address before: 512000 Shaoguan high tech Zone, 150 meters southwest of the intersection of Muxi Avenue and Baiwang Road, Wujiang District, Shaoguan City, Guangdong Province Applicant before: Luo Nianlin |
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