CN214821754U - Scraper device and solder printing machine with same - Google Patents
Scraper device and solder printing machine with same Download PDFInfo
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- CN214821754U CN214821754U CN202023233368.2U CN202023233368U CN214821754U CN 214821754 U CN214821754 U CN 214821754U CN 202023233368 U CN202023233368 U CN 202023233368U CN 214821754 U CN214821754 U CN 214821754U
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Abstract
The application discloses scraper device and have its solder printing machine includes: a scraper; a positioning component is arranged between the connecting piece and the scraper; the positioning assembly comprises a first positioning piece and a second positioning piece which are in positioning fit, the first positioning piece and the second positioning piece are respectively arranged in the connecting piece and the scraper, the positioning assembly further comprises a third positioning piece, one of the first positioning piece and the second positioning piece is provided with a first positioning hole, and the other one of the first positioning piece and the second positioning piece is in sliding fit with the third positioning piece, so that the third positioning piece can be in positioning fit with the first positioning hole to fix the scraper and the connecting piece. The application provides a scraper device and have its solder printing machine carries out detachably location fixed connection to scraper and connecting piece through locating component, not only can make the change easy operation and the reliability of scraper, can also make the connection reliability between scraper and the connecting piece good, avoid appearing leading to the mobilizable condition of scraper relative installation piece through screw fixed mounting piece and scraper, improved the printing quality of solder.
Description
Technical Field
The utility model relates to a semiconductor manufacturing technology field, concretely relates to scraper device and have its solder printing machine.
Background
In the semiconductor packaging process, solder needs to be printed on the surface of the substrate of the chip by a solder printer. The existing solder printer includes a driving mechanism and a scraper, wherein the driving mechanism drives the scraper to move so as to coat the solder on the surface of the substrate. Wherein, actuating mechanism's drive end is fixed and is equipped with the installation piece, and the installation piece is located the top of scraper and carries out fixed connection through the screw between the scraper.
However, the scraper and the mounting block have the following problems when they are assembled and disassembled:
1. when the scraper is replaced every time, the screw is required to be disassembled and assembled many times, meanwhile, because the uncertainty exists in the screw screwing degree of an operator at every time, the position of the scraper relative to the operation surface is easy to be uncertain, and then the printing parameters are required to be adjusted, so that the operation of replacing the scraper is complicated.
2. When the scraper is installed each time, the situation that the screw is over-tightened or over-loosened is easy to occur, when the screw is over-tightened, the replacement and disassembly difficulty of the scraper is increased, and the situation that the screw is deformed or even broken may occur; when the screw is rotated too loosely, the squeegee blade may move relative to the mounting block, resulting in uneven squeegee blade pressure and thus poor print quality.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a squeegee assembly and a solder printer having the same.
In a first aspect, the present application provides a doctor apparatus comprising:
a scraper;
a positioning component is arranged between the connecting piece and the scraper;
the positioning assembly comprises a first positioning piece and a second positioning piece which are in positioning fit, the first positioning piece and the second positioning piece are respectively arranged in the connecting piece and the scraper, the positioning assembly further comprises a third positioning piece, one of the first positioning piece and the second positioning piece is provided with a first positioning hole, and the other one of the first positioning piece and the second positioning piece is in sliding fit with the third positioning piece, so that the third positioning piece can be in positioning fit with the first positioning hole to fix the scraper and the connecting piece.
Furthermore, the positioning assembly further comprises a fourth positioning part, one of the first positioning part and the second positioning part is provided with a second positioning hole, and the other positioning part is in sliding fit with the fourth positioning part, so that the fourth positioning part can be in positioning fit with the second positioning hole;
the positioning directions of the fourth positioning part and the second positioning hole are the same as the positioning directions of the third positioning part and the first positioning hole, and the positioning accuracy of the fourth positioning part and the second positioning hole is lower than that of the third positioning part and the first positioning hole.
Furthermore, a mounting hole is formed in the first positioning piece or the second positioning piece which is in sliding fit with the fourth positioning piece, the fourth positioning piece is slidably arranged in the mounting hole, an elastic piece is further arranged in the mounting hole, and the elastic piece is connected with the fourth positioning piece to provide elastic force towards the direction of the second positioning hole for the fourth positioning piece;
the fourth positioning part comprises a first pushing part, the first positioning part or the second positioning part where the second positioning hole is located comprises a second pushing part, and when the first positioning part and the second positioning part are disassembled and assembled, the first pushing part and the second pushing part are pushed and matched to drive the second positioning part to slide along the direction far away from the second positioning hole.
Further, the third positioning piece is an indexing positioning pin.
Furthermore, a fool-proof structure is arranged between the scraper and the connecting piece.
Furthermore, prevent slow-witted structure including grafting cooperation grafting arch and slot, grafting arch and slot are arranged in scraper and connecting piece separately.
Further, the first positioning element comprises a first stopping portion, the second positioning element comprises a second stopping portion, and the first stopping portion and the second stopping portion are matched in a stopping mode in the gravity direction of the scraper so as to limit the movement of the scraper in the gravity direction.
Further, the first positioning piece is one of the positioning protrusion and the positioning groove, and the second positioning piece is the other of the positioning protrusion and the positioning groove.
Further, the positioning groove includes an opening portion through which the positioning protrusion enters and exits, the opening portion being located at one side of the positioning groove in the horizontal direction.
Furthermore, more than two positioning assemblies are arranged between the connecting piece and the scraper, and the more than two positioning assemblies are arranged at intervals along the length direction of the scraper.
In a second aspect, the present application further provides a solder printer including a driving mechanism and a squeegee assembly, the driving mechanism coupled to the connecting member to drive the squeegee assembly to move.
The application provides a scraper device and have its solder printing machine, through be equipped with locating component between scraper and connecting piece, locating component can carry out detachably location fixed connection to scraper and connecting piece, not only can make the change easy operation and the reliability of scraper, can also make the connection reliability between scraper and the connecting piece good, avoid appearing leading to the mobilizable condition of scraper relative installation piece through screw fixed mounting piece and scraper, improved the printing quality of solder.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic front view of a doctor blade apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic side view of a doctor apparatus according to an embodiment of the present disclosure;
FIG. 3 is a schematic top view of a doctor apparatus provided in accordance with an embodiment of the present application;
fig. 4 is a schematic perspective view of a doctor blade apparatus provided in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a doctor blade provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a connector provided in an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
Referring to fig. 1 to 6, a doctor apparatus according to an embodiment of the present application includes:
a scraper 100;
a positioning component is arranged between the connecting piece 200 and the scraper 100;
the positioning assembly comprises a first positioning piece and a second positioning piece which are in positioning fit, the first positioning piece and the second positioning piece are respectively arranged in the connecting piece 200 and the scraper 100, the positioning assembly further comprises a third positioning piece 300, one of the first positioning piece and the second positioning piece is provided with a first positioning hole, and the other one of the first positioning piece and the second positioning piece is in sliding fit with the third positioning piece 300, so that the third positioning piece 300 can be in positioning fit with the first positioning hole to fix the scraper 100 and the connecting piece 200.
In this embodiment, the blade 100 arrangement includes a blade 100, a connector 200, and a positioning assembly disposed between the blade 100 and the connector 200. The doctor blade 100 is used to doctor the printing material. The connecting member 200 has a connecting portion 220 and is connected to a driving mechanism of the solder printing apparatus through the connecting portion 220, so that the driving mechanism can drive the movement of the squeegee blade 100 apparatus. The positioning assembly is arranged between the connecting piece 200 and the scraper 100, and the positioning and fixing connection between the scraper 100 and the connecting piece 200 is realized through the positioning assembly, specifically, the positioning assembly comprises a first positioning piece and a second positioning piece which are matched in a positioning manner, and the first positioning piece and the second positioning piece are respectively arranged in the connecting piece 200 and the scraper 100, so that the positioning is formed between the scraper 100 and the connecting piece 200 in some positioning directions. The positioning assembly further comprises a third positioning element 300, one of the first positioning element and the second positioning element is provided with a first positioning hole, the other one of the first positioning element and the second positioning element is in sliding fit with the third positioning element 300, and the third positioning element 300 is slidable relative to the first positioning hole along the axial direction of the first positioning hole, so that the third positioning element 300 is provided with a first positioning position which is inserted into the first positioning hole and forms positioning fit with the first positioning hole and a first avoiding position which is separated from the first positioning hole. When the third positioning element 300 is positioned and matched with the first positioning hole, the first positioning element and the second positioning element can be relatively fixed, so that the scraper 100 and the connecting element 200 are fixedly connected.
The ways of fixing the first positioning member and the second positioning member when the third positioning member 300 and the first positioning hole are matched in positioning include, but are not limited to: the positioning directions of the third positioning member 300 and the first positioning hole and the positioning directions of the first positioning member and the second positioning member are at least partially different, and the first direction, the second direction and the third direction are perpendicular to each other in the positioning directions of the third positioning member 300 and the first positioning hole and the positioning directions of the first positioning member and the second positioning member. For example: the positioning directions of the first positioning member and the second positioning member are a first direction and a second direction, and the positioning directions of the third positioning member 300 and the first positioning hole are a second positioning direction and a third positioning direction. For another example, the positioning directions of the first positioning member and the second positioning member are the first direction, and the positioning directions of the third positioning member 300 and the first positioning hole are the second positioning direction and the third positioning direction. Of course, the positioning directions of the third positioning member 300 and the first positioning hole and the first positioning member and the second positioning member are not limited to the above-described manners.
The fixing connection manner between the driving mechanism and the connecting portion 220 includes, but is not limited to, bolt fixing connection, and the like, which is not limited in the present application.
The scraper 100 device provided by the embodiment is provided with the positioning component between the scraper 100 and the connecting piece 200, the positioning component can detachably position and fixedly connect the scraper 100 and the connecting piece 200, not only can the replacement operation of the scraper 100 be simple and reliable, but also the connection reliability between the scraper 100 and the connecting piece 200 can be good, the situation that the scraper 100 is movable relative to the mounting block due to the fact that the mounting block is fixed by screws and the scraper 100 is avoided, and the printing quality of solder is improved.
In some embodiments of the present application, the first positioning member is one of the positioning protrusion 110 and the positioning groove 210, and the second positioning member is the other of the positioning protrusion 110 and the positioning groove 210.
In the present embodiment, the first positioning element is the positioning protrusion 110, and the second positioning element is the positioning slot 210; alternatively, the first positioning element is a positioning groove 210, and the second positioning element is a positioning protrusion 110. The positioning cooperation between the positioning protrusion 110 and the positioning groove 210 has the advantages of simple rotation and positioning effect.
Based on the scraper 100 device shown in fig. 1-4, the first positioning member is a positioning protrusion 110, the second positioning member is a positioning groove 210, the positioning protrusion 110 is disposed on the scraper 100, the positioning groove 210 is disposed on the connecting member 200, the third positioning member 300 and the fourth positioning member are both disposed on the connecting member 200, and the first positioning hole and the second positioning hole are both disposed on the positioning protrusion 110. Based on the reference view angle of fig. 1, the positioning directions of the positioning protrusion 110 and the positioning groove 210 are the left-right direction, and the positioning directions of the third positioning member 300 and the first positioning hole are the inner-outer direction and the up-down direction.
In some embodiments of the present application, the positioning groove 210 includes an opening portion 211 for the positioning protrusion 110 to enter and exit, and the opening portion 211 is located at one side of the positioning groove 210 in the horizontal direction.
In this embodiment, the opening portion 211 of the positioning groove 210 is disposed at one side of the positioning groove 210 in the horizontal direction, so that the assembling direction of the scraper 100 and the connecting member 200 is the horizontal direction, which not only facilitates the assembling between the scraper 100 and the connecting member 200, but also reduces the risk that the scraper 100 and the connecting member 200 collide with the printing steel net and other components below the scraper 100 during the assembling and disassembling process.
Further, the bottom of the positioning groove 210 penetrates the bottom surface of the connector 200, or the top of the positioning groove 210 penetrates the top surface of the connector 200, so that the structure of the positioning protrusion 110 can be simplified, and the overall thickness of the positioning protrusion 110 and the positioning groove 210 after assembly can be reduced.
Further, the opening portion 211 is provided with a guide corner 212 for guiding the fitting of the positioning projection 110 into the positioning groove 210 to improve the fitting efficiency therebetween.
In some embodiments of the present application, the positioning assembly further includes a fourth positioning element 400, one of the first positioning element and the second positioning element has a second positioning hole, and the other one is slidably engaged with the fourth positioning element 400, so that the fourth positioning element 400 can be positioned and engaged with the second positioning hole;
the positioning directions of the fourth positioning element 400 and the second positioning hole are the same as the positioning directions of the third positioning element 300 and the first positioning hole, and the positioning accuracy of the fourth positioning element 400 and the second positioning hole is lower than the positioning accuracy of the third positioning element 300 and the first positioning hole.
In this embodiment, the first positioning member and the second positioning member which are positioned and matched are pre-positioned by the fourth positioning member 400 before being positioned by the third positioning member 300, so that the subsequent positioning between the third positioning member 300 and the first positioning hole can be facilitated, and the assembly efficiency of the scraper 100 device is improved.
Specifically, one of the first positioning member and the second positioning member has a second positioning hole, the other is slidably engaged with the fourth positioning member 400, and the fourth positioning member 400 is slidable along the axial direction of the second positioning hole relative to the second positioning hole, so that the fourth positioning member has a second positioning position inserted into the second positioning hole and forming positioning engagement with the second positioning hole, and a second avoidance position separated from the second positioning hole. The positioning directions of the fourth positioning element 400 and the second positioning hole are the same as the positioning directions of the third positioning element 300 and the first positioning hole, and the positioning accuracy of the fourth positioning element 400 and the second positioning hole is lower than the positioning accuracy of the third positioning element 300 and the first positioning hole.
In some embodiments of the present disclosure, the first positioning element or the second positioning element slidably engaged with the fourth positioning element 400 is provided with a mounting hole, the fourth positioning element 400 is slidably disposed in the mounting hole, and an elastic element is further disposed in the mounting hole, and the elastic element is connected to the fourth positioning element 400 to provide an elastic force to the fourth positioning element 400 in a direction toward the second positioning hole;
the fourth positioning member 400 includes a first pushing portion 410, the first positioning member or the second positioning member where the second positioning hole is located includes a second pushing portion, and when the first positioning member and the second positioning member are disassembled and assembled, the first pushing portion 410 and the second pushing portion are pushed and matched to drive the second positioning member to slide along a direction away from the second positioning hole.
In this embodiment, the fourth positioning element 400 is driven by the first positioning element or the second positioning element at the second positioning hole to move to the second avoiding position, and is driven by the elastic element to move to the second positioning position, so that the fourth positioning element 400 can move without manual operation, and the assembly difficulty of the scraper 100 device is reduced.
Specifically, a first positioning element or a second positioning element slidably engaged with the fourth positioning element 400 is provided with a mounting hole, the fourth positioning element 400 is slidably disposed in the mounting hole along an axial direction of the second positioning hole, an elastic element is further disposed in the mounting hole, the elastic element is connected to the fourth positioning element 400 to provide an elastic force toward the second positioning hole to the fourth positioning element 400, the fourth positioning element 400 includes a first pushing portion 410, and the first positioning element or the second positioning element at the second positioning hole includes a second pushing portion. During the assembly of the first positioning element and the second positioning element, when the first positioning element and the second positioning element move to the positioning position, the first pushing portion 410 and the second pushing portion will form a pushing fit to drive the fourth positioning element 400 to slide along the direction away from the second positioning hole and move to the avoiding position, and during the assembly, the elastic element is in an energy storage state. When the positioning position between the first positioning member and the second positioning member is reached, the fourth positioning member 400 and the second positioning hole are aligned, and the elastic member releases energy to drive the fourth positioning member 400 to be inserted into the second positioning hole and reach the second positioning position. During the period of splitting the first positioning element and the second positioning element, when the first positioning element and the second positioning element move from the positioning position to the separation position, the first pushing portion 410 and the second pushing portion continue to form pushing cooperation to drive the fourth positioning element 400 to slide along the direction away from the second positioning hole and move to the avoiding position, and during the period, the elastic element is in an energy storage state.
Wherein at least one of the first pushing portion 410 and the second positioning portion includes a pushing surface. Taking the fourth positioning element 400 as the first positioning pin as an example, the first positioning pin has an insertion end for inserting the second positioning hole, the insertion end is provided with an annular guiding section, and the guiding section is a pushing surface. During the period of assembling and disassembling the first positioning element and the second positioning element, the second pushing portion and the pushing surface are in pushing fit to drive the fourth positioning element 400 to slide along the direction away from the second positioning hole and move to the avoiding position. The second pushing portion is two parts, the first part is a part of the inner side wall of the second positioning hole and is used for being matched with the first pushing portion 410 in a pushing mode during the period that the first positioning piece and the second positioning piece are detached, and the second part is a part of the outer wall of the first positioning piece or the second positioning piece where the second positioning hole is located and is used for being matched with the first pushing portion 410 in a pushing mode during the period that the first positioning piece and the second positioning piece are assembled.
The elastic member includes, but is not limited to, a first spring or a hollow rubber-like structure, and the present application is not limited thereto. Taking the first spring as an example, the first spring is sleeved on the periphery of the fourth positioning member 400, a first stop ring is arranged on the hole wall of the mounting hole in a protruding manner, a second stop ring is arranged on the outer side wall of the fourth positioning member 400 in a protruding manner, the first stop ring is arranged on one side, away from the second positioning hole, of the second stop ring, the first spring is arranged between the first stop ring and the second stop ring, and two ends of the elastic member are respectively in contact fit with the first stop ring and the second stop ring.
In some embodiments of the present application, the first positioning element includes a first stopping portion 111, the second positioning element includes a second stopping portion 213, and the first stopping portion 111 and the second stopping portion 213 cooperate in a stopping manner along a gravity direction of the scraper 100 to limit movement of the scraper 100 along the gravity direction.
In this embodiment, the movement of the squeegee blade 100 in the direction of gravity can be limited by the stop cooperation of the first stop 111 and the second stop 213, thereby reducing the risk that the squeegee blade 100 and the connecting member 200 will fall off onto the printing steel web during handling.
It should be understood that when the first positioning member and the second positioning member are positioned and fixed by the third positioning member 300, there may be a gap or no gap between the first blocking portion 111 and the second blocking portion 213 in the gravity direction of the scraper 100. The size of the gap can be set according to the use requirement, but the gap is ensured to be smaller than the gap between the scraper 100 and the printing steel net.
Further, when the first positioning element is one of the positioning protrusion 110 and the positioning groove 210 and the second positioning element is the other of the positioning protrusion 110 and the positioning groove 210, a stopping protrusion is convexly disposed on an outer side wall of the positioning protrusion 110 along a direction perpendicular to a gravity direction of the scraper 100, and a stopping groove is correspondingly concavely disposed on an inner side wall of the positioning groove 210. When the positioning projection 110 is positioned to be engaged with the positioning groove 210, the stopper projection is positioned in the stopper groove to form a stopper engagement in the gravity direction of the scraper 100.
Based on the structure of the scraper 100 shown in fig. 1-4, in which the positioning protrusion 110 and the positioning groove 210 are matched in shape, the positioning protrusion 110 includes a first protrusion section 112 and a second protrusion section 113, one end of the first protrusion section 112 is fixedly connected to the top of the scraper 100, and the other end is connected to the second protrusion section 113. First protruding section 112 is the cuboid form, and second protruding section 113 is discoid, and first protruding section 112 and the 113 partial coincidences of second protruding section, so set up the assembly that can be convenient for location arch 110 and constant head tank 210, and can also improve the protruding 110 of location and the ascending backstop cooperation effect of constant head tank 210 in the direction of gravity of scraper 100.
In some embodiments of the present application, the third positioning member 300 is an indexing pin.
In this embodiment, the indexing positioning pin has advantages such as simple operation, and the staff of not only being convenient for switches the position of first locating piece easily, and is more laborsaving.
Specifically, the indexing positioning pin includes the connecting tube body and installs second locating pin and the second spring in the connecting tube body, and realizes the location to first locating hole through the second locating pin. The second spring sleeve is accommodated in the inner side wall of the connecting pipe body and sleeved on the periphery of the second positioning pin, the second spring is connected with the second positioning pin to provide elastic force towards the direction of the first positioning hole for the second positioning pin, the connecting pipe body is provided with a threaded section and is in threaded fit with the scraper 100 or the connecting piece 200 where the first positioning piece is located, and one end of the second positioning pin is provided with an operating part 310. The worker can drive the second positioning pin to move to the first avoidance position by pulling the operating portion 310 outward, and the second positioning pin can move to the first positioning position under the action of the second spring when the pulling force is removed.
The indexing positioning pin can be preferably a positioning indexing positioning pin, one end, close to the operating part 310, of a connecting pipe body of the positioning indexing positioning pin is provided with a limiting groove, the operating part 310 is provided with a limiting bulge, and when the second positioning pin is at the first positioning position, the limiting bulge is inserted into the limiting groove; when the second positioning pin is in the first avoidance position, the limiting protrusion abuts against the part, different from the limiting groove, of the connecting pipe body, so that the second positioning pin is kept in the first avoidance position, and further the second positioning pin can be pulled outwards by a worker during the first avoidance position of the second positioning pin, and the assembly difficulty of the scraper 100 device is reduced.
In some embodiments of the present application, a fool-proof structure is provided between the taping knife 100 and the connecting member 200.
In the present embodiment, the scraper 100 has directionality, and the fool-proof structure can prevent the scraper 100 from being reversely assembled on the connecting member 200, so as to prevent the scraper 100 from reversely scraping solder.
Further, the fool-proof structure includes the insertion protrusion 230 and the insertion groove 120 that are inserted and matched, and the insertion protrusion 230 and the insertion groove 120 are respectively disposed on the scraper 100 and the connecting member 200. When the assembling direction of the scraper 100 is correct, the inserting protrusion 230 and the slot 120 are in inserting fit, and when the assembling direction of the scraper 100 is opposite, the inserting protrusion 230 and the slot 120 are arranged in a staggered manner, and the inserting protrusion 230 and the slot 120 cannot be in inserting fit.
Based on the blade 100 assembly shown in fig. 1-4, the insertion protrusion 230 is disposed at the bottom of the connecting member 200, and the insertion groove 120 is recessed at the top of the blade 100 and is disposed toward one end of the blade 100 along the length.
In some embodiments of the present application, two or more positioning assemblies are disposed between the connecting member 200 and the scraper 100, and the two or more positioning assemblies are disposed at intervals along the length direction of the scraper 100, so that the connection reliability between the connecting member 200 and the scraper 100 is good.
Wherein, more than two positioning components are respectively positioned at one side or two sides of the middle part of the scraper 100.
The embodiment of the application also provides a solder printer, which comprises a driving mechanism and a scraper 100 device, wherein the driving mechanism is connected with the connecting piece 200 to drive the scraper 100 device to move.
It will be understood that any reference to the above orientation or positional relationship as indicated by the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., is intended to be based on the orientation or positional relationship shown in the drawings and is for convenience in describing and simplifying the invention, and does not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered as limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (11)
1. A doctor apparatus, characterized in that it comprises:
a scraper;
the connecting piece is arranged between the scraper and provided with a positioning assembly;
the positioning assembly comprises a first positioning piece and a second positioning piece which are in positioning fit, the first positioning piece and the second positioning piece are respectively arranged in the connecting piece and the scraper, the positioning assembly further comprises a third positioning piece, one of the first positioning piece and the second positioning piece is provided with a first positioning hole, and the other one of the first positioning piece and the second positioning piece is in sliding fit with the third positioning piece, so that the third positioning piece can be fixed with the scraper and the connecting piece in positioning fit with the first positioning hole.
2. The doctor apparatus as claimed in claim 1, wherein the positioning assembly further includes a fourth positioning member, one of the first positioning member and the second positioning member having a second positioning hole and the other being slidably engaged with the fourth positioning member so that the fourth positioning member is locatingly engaged with the second positioning hole;
the positioning directions of the fourth positioning part and the second positioning hole are the same as the positioning directions of the third positioning part and the first positioning hole, and the positioning accuracy of the fourth positioning part and the second positioning hole is lower than that of the third positioning part and the first positioning hole.
3. The scraper device according to claim 2, wherein the first positioning member or the second positioning member slidably engaged with the fourth positioning member is provided with a mounting hole, the fourth positioning member is slidably disposed in the mounting hole, and an elastic member is further disposed in the mounting hole, and the elastic member is connected with the fourth positioning member to provide an elastic force to the fourth positioning member in a direction toward the second positioning hole;
the fourth positioning part comprises a first pushing part, the first positioning part or the second positioning part where the second positioning hole is located comprises a second pushing part, and when the first positioning part and the second positioning part are disassembled and assembled, the first pushing part and the second pushing part are in pushing fit to drive the second positioning part to slide along the direction far away from the second positioning hole.
4. The doctor apparatus as claimed in claim 1, wherein the third positioning element is an indexing detent pin.
5. A doctor apparatus according to claim 1, characterised in that a fool-proof structure is provided between the doctor blade and the connecting piece.
6. The doctor apparatus as claimed in claim 5, wherein the fool-proofing structure includes a mating insertion projection and a slot, the insertion projection and the slot being disposed at the doctor blade and the connector, respectively.
7. The doctor apparatus of claim 1, wherein the first positioning element includes a first stop and the second positioning element includes a second stop, the first stop and the second stop cooperating in a direction of gravitational force along the doctor blade to limit movement of the doctor blade in the direction of gravitational force.
8. The doctor apparatus as claimed in any one of claims 1-7, wherein the first positioning member is one of a positioning projection and a positioning slot, and the second positioning member is the other of the positioning projection and the positioning slot.
9. The doctor apparatus as claimed in claim 8, wherein the positioning groove includes an opening portion through which the positioning projection enters and exits, the opening portion being located on one side of the positioning groove in the horizontal direction.
10. The doctor apparatus as claimed in claim 1, wherein two or more of the positioning assemblies are disposed between the connecting member and the doctor blade, the two or more positioning assemblies being spaced apart along a length of the doctor blade.
11. A solder printing machine comprising a squeegee assembly according to any one of claims 1-10, the solder printing machine comprising a drive mechanism coupled to the coupling member for driving movement of the squeegee assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023233368.2U CN214821754U (en) | 2020-12-28 | 2020-12-28 | Scraper device and solder printing machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023233368.2U CN214821754U (en) | 2020-12-28 | 2020-12-28 | Scraper device and solder printing machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214821754U true CN214821754U (en) | 2021-11-23 |
Family
ID=78870337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023233368.2U Active CN214821754U (en) | 2020-12-28 | 2020-12-28 | Scraper device and solder printing machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214821754U (en) |
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2020
- 2020-12-28 CN CN202023233368.2U patent/CN214821754U/en active Active
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