CN218928920U - Scraper blade, scraper device and screen printing device - Google Patents
Scraper blade, scraper device and screen printing device Download PDFInfo
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- CN218928920U CN218928920U CN202222636517.2U CN202222636517U CN218928920U CN 218928920 U CN218928920 U CN 218928920U CN 202222636517 U CN202222636517 U CN 202222636517U CN 218928920 U CN218928920 U CN 218928920U
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Abstract
The utility model relates to the technical field of screen printing scrapers, in particular to a scraper, a scraper device and a screen printing device. The scraping plate comprises a first main body and a second main body, wherein the first main body is provided with a first combination structure. The second body is provided with a second combining structure which is arranged in a central symmetry mode and a contact structure which is arranged in a central symmetry mode, the second combining structure and the contact structure have the same rotation angle, the second combining structure is detachably combined on the first combining structure to enable the first body and the second body to be combined, the contact structure comprises a first contact part and a second contact part, one of the second contact part and the first contact part is positioned at a position contacted with the screen plate, the second body is rotated through the rotation angle, and the second contact part and the first contact part exchange positions. The second contact part is switched to a position contacted with the silk screen plate to continue working; the second main body is designed to be a reusable structure, and the scraper has the advantages of long service life and cost saving.
Description
Technical Field
The utility model relates to the technical field of screen printing scrapers, in particular to a scraper, a scraper device and a screen printing device.
Background
The doctor blade device is part of a screen printing device. The current scraper device comprises a bracket and a scraper blade which is obliquely fixed on the bracket, wherein the scraper blade is in a rectangular plate shape and is provided with a front surface facing the advancing direction and a bottom edge used for pressing a silk screen, and the part of the front surface, which is close to the bottom edge, is a front knife surface. When the screen printing machine is used, the sizing agent is added to the screen printing plate, the position of the scraping plate is adjusted to enable the front cutter surface of the scraping plate to form a set included angle with the screen plate, the bottom edge of the scraping plate is pressed on the screen printing plate, when the scraping plate moves, the front cutter surface of the scraping plate forms a sizing agent scraping surface for pressing the sizing agent, and the sizing agent is transferred onto a printing stock through meshes of a corresponding image-text part on the screen printing plate under the extrusion of the sizing agent scraping surface, so that printing is realized.
When the scraper plate performs screen printing, the edge at the bottom of the scraper plate is pressed on the screen plate. In the travelling process of the scraping plate, the bottom edge of the scraping plate and the silk screen plate are rubbed with each other, so that the contact position of the scraping plate and the silk screen plate is worn, and only one new scraping plate can be replaced after the service life is reached, thereby causing cost waste.
Disclosure of Invention
The embodiment of the utility model provides a scraper, a scraper device and a screen printing device, which aim to solve the technical problem that when a scraper in the prior art is used for screen printing, the contact position of the scraper and a screen is worn so that only one new scraper can be replaced after the service life is reached.
In order to solve the above technical problems, in one aspect, an embodiment of the present utility model provides a squeegee, including:
a first body having a first coupling structure; and
the second main body is provided with a second combining structure which is arranged in a central symmetry mode and a contact structure which is arranged in a central symmetry mode, the second combining structure and the contact structure have the same rotation angle, the second combining structure is detachably combined on the first combining structure so that the first main body and the second main body are combined, the contact structure comprises a first contact part and a second contact part, one of the second contact part and the first contact part is positioned at a position contacted with the screen plate, the second main body is rotated through the rotation angle, and the second contact part and the first contact part exchange positions.
Optionally, the second combination structure is slidably embedded in the first combination structure and is matched with the first combination structure in a concave-convex manner.
Optionally, the first combining structure is provided with a plurality of first ribs, the first ribs extend to two ends of the first main body along the length direction of the first main body, and a first embedded groove is formed between two adjacent first ribs;
the second combination structure is provided with a plurality of second convex ribs, the second convex ribs extend to two ends of the second main body along the length direction of the second main body, and a second embedded groove is formed between two adjacent second convex ribs;
the second protruding ribs are slidably embedded into the first embedded grooves, and the first protruding ribs are slidably embedded into the second embedded grooves.
Optionally, the cross sections of the first convex rib and the second convex rib are square, the second convex rib is tightly matched with the first embedded groove, and the first convex rib is tightly matched with the second embedded groove.
Optionally, the first ribs are arranged at equal intervals, and the second ribs are arranged at equal intervals.
Optionally, more than one of the second bodies are stacked on the first body.
Optionally, the second main body further has a third combining structure configured in a central symmetry manner, the third combining structure and the second combining structure are respectively arranged on the front surface and the back surface of the second main body, and the third combining structure is detachably combined on the second combining structure, so that two adjacent second main bodies are combined.
Optionally, the first body further has a support portion protruding with respect to an upper side of the second body.
On the other hand, the embodiment of the utility model also provides a scraper device which comprises a bracket and the scraper, wherein the scraper is fixed on the bracket.
In still another aspect, an embodiment of the present utility model further provides a screen printing apparatus, including:
a screen plate;
the screen printing apparatus further includes:
the scraper device comprises a bracket and the scraper, wherein the scraper is fixed on the bracket and is used for contacting the screen plate.
The embodiment of the utility model has the following beneficial effects: when the scraper is used, one of the second contact part and the first contact part is positioned at a position contacted with the screen plate, for example, the first contact part is firstly positioned at a position contacted with the screen plate, after the first contact part is worn to reach the service life, the second combination structure is detached from the first combination structure, so that the first main body and the second main body are separated, the second main body is rotated by a rotation angle, namely the second main body is rotated by 180 degrees, and the second combination structure is arranged in a central symmetry way, so that the second combination structure can still be combined with the first combination structure again after rotation, and the second contact part and the first contact part are switched to the position contacted with the screen plate to continue working; the second main body is designed to be a reusable structure, and the scraper has the advantages of long service life and cost saving.
Drawings
FIG. 1 is a schematic view of a screed according to the present utility model;
fig. 2 is an exploded view of fig. 1.
Reference numerals illustrate:
1. a first body; 11. a first bonding structure; 111. the first convex rib; 112. a first embedded groove; 12. a support part; 2. a second body; 21. a second bonding structure; 211. the second convex rib; 212. a second insertion groove; 22. a contact structure; 221. a first contact portion; 222. a second contact portion; 23. and a third bonding structure.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent. It is only stated that the terms of orientation such as up, down, left, right, front, back, inner, outer, etc. used in this document or the imminent present utility model, are used only with reference to the drawings of the present utility model, and are not meant to be limiting in any way.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The description as it relates to "first", "second", etc. in the present utility model is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In an embodiment of the present utility model, referring to fig. 1 and 2, a squeegee is provided, which includes a first body 1 and a second body 2, wherein the first body 1 has a first coupling structure 11. The second body 2 has a second coupling structure 21 arranged in a central symmetry and a contact structure 22 arranged in a central symmetry, the second coupling structure 21 and the contact structure 22 have the same rotation angle, the second coupling structure 21 is detachably coupled to the first coupling structure 11 to couple the first body 1 and the second body 2, the contact structure 22 includes a first contact part 221 and a second contact part 222, one of the second contact part 222 and the first contact part 221 is located at a position contacting the screen, the second body 2 is rotated by the rotation angle, and the second contact part 222 and the first contact part 221 exchange positions.
When the scraper is used, the scraper is fixed on the bracket through the first main body 1, and the scraper is driven to move forwards through the bracket. The scraper is fixed to the bracket in an inclined manner. Only one of the second contact portion 222 and the first contact portion 221 is located at a position where it is in contact with the screen plate. Specifically, the first contact portion 221 and the second contact portion 222 are two opposite edges on the second body 2, respectively. The other parts of the second body 2 are not in contact with the screen. The material is transferred to the printing stock by the extrusion of the second contact portion 222 or the first contact portion 221 through the mesh openings of the corresponding pattern portion on the screen plate, and printing is achieved.
Illustratively, the first contact portion 221 is located at a position contacting the screen plate, after the first contact portion 221 is worn out for a service life, the second contact portion 222 and the first contact portion 221 are removed from the first contact portion 11, the first body 1 and the second body 2 are separated, the second body 2 is rotated by a rotation angle, that is, the second body 2 is rotated by 180 °, and since the second contact portion 21 is arranged in a central symmetry, the second contact portion 21 can still be combined with the first contact portion 11 again after rotation, and the second contact portion 222 and the first contact portion 221 exchange positions, that is, the second contact portion 222 is switched to a position contacting the screen plate to continue operation. The scraper blade designs the second main body 2 into a reusable structure, and has the advantages of long service life and cost saving.
In another embodiment of the present utility model, referring to fig. 1 and 2, for easy disassembly and assembly, the second coupling structure 21 is slidably inserted into the first coupling structure 11 and the two are engaged with each other with a concave-convex shape.
Specifically, the first bonding structure 11 is provided with a plurality of first ribs 111, the first ribs 111 extend to two ends of the first body 1 along the length direction of the first body 1, and a first embedded groove 112 is formed between two adjacent first ribs 111.
The second combination structure 21 is provided with a plurality of second ribs 211, the second ribs 211 extend to two ends of the second main body 2 along the length direction of the second main body 2, and a second embedded groove 212 is formed between two adjacent second ribs 211.
When the assembly is combined, the second ribs 211 are slidably embedded into the first embedded grooves 112, and the first ribs 111 are slidably embedded into the second embedded grooves 212, so that the assembly is simple to operate and easy to disassemble or assemble.
Since the squeegee is disposed obliquely in use, only the bottom of the second body 2 is subjected to force, including the reaction force of friction force and the reaction force of pressing down force. The second body 2 is forced so that it remains coupled to the first body 1 rather than falling out of the first body 1.
In another embodiment of the present utility model, referring to fig. 1 and 2, in order to more firmly couple the second body 2 with the first body 1, the cross sections of the first ribs 111 and the second ribs 211 are square, the second ribs 211 are tightly fitted with the first insert grooves 112, and the first ribs 111 are tightly fitted with the second insert grooves 212. Further, the first ribs 111 and the second ribs 211 are disposed at equal intervals.
In another embodiment of the present utility model, referring to fig. 1 and 2, more than one second body 2 is stacked on the first body 1 in order to extend the overall service life of the screed. One second body 2 has a contact structure 22 that can be used twice, i.e. a first contact 221 and a second contact 222, the total service life of the first contact 221 and the second contact 222 being two time periods. I.e. each layer of second body 2 is superimposed, the service life of the scraper is increased by two time periods, further saving costs. In general, the second body 2 may be provided in 2-4 layers.
Further, the second body 2 further has a third coupling structure 23 disposed in a central symmetry manner, the third coupling structure 23 and the second coupling structure 21 are respectively disposed on the front surface and the back surface of the second body 2, and the third coupling structure 23 is detachably coupled to the second coupling structure 21, so that two adjacent second bodies 2 are coupled.
Note that the second body 2 may not be provided with the third bonding structure 23, for example, the second body 2 located at the outermost layer, and the third bonding structure 23 may not be provided, i.e., the front surface thereof may be provided as a plane, since bonding with the second body 2 of the next layer is not required.
In another embodiment of the present utility model, referring to fig. 1, in order to fix and support the squeegee, the first body 1 further has a support portion 12, and the support portion 12 protrudes with respect to the upper side of the second body 2.
On the other hand, the embodiment of the utility model also provides a scraper device which comprises a bracket and a scraper, wherein the scraper is fixed on the bracket. The specific structure of the scraper refers to the above embodiments, and since the scraper device adopts all the technical solutions of all the embodiments, at least the scraper device has all the beneficial effects brought by the technical solutions of the embodiments, and the details are not repeated here.
In still another aspect, an embodiment of the present utility model further provides a screen printing apparatus, including a screen plate and a doctor apparatus, the doctor apparatus including a support and a squeegee, the squeegee being fixed to the support and the squeegee being configured to contact the screen plate.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.
Claims (10)
1. A screed comprising:
a first body having a first coupling structure; and
the second main body is provided with a second combining structure which is arranged in a central symmetry mode and a contact structure which is arranged in a central symmetry mode, the second combining structure and the contact structure have the same rotation angle, the second combining structure is detachably combined on the first combining structure so that the first main body and the second main body are combined, the contact structure comprises a first contact part and a second contact part, one of the second contact part and the first contact part is positioned at a position contacted with the screen plate, the second main body is rotated through the rotation angle, and the second contact part and the first contact part exchange positions.
2. The screed of claim 1, wherein said second coupling structure is slidably embedded in said first coupling structure and is in a male-female engagement.
3. The scraping plate as claimed in claim 2, wherein the first combination structure is provided with a plurality of first ribs, the first ribs extend to two ends of the first main body along the length direction of the first main body, and a first embedded groove is formed between two adjacent first ribs;
the second combination structure is provided with a plurality of second convex ribs, the second convex ribs extend to two ends of the second main body along the length direction of the second main body, and a second embedded groove is formed between two adjacent second convex ribs;
the second protruding ribs are slidably embedded into the first embedded grooves, and the first protruding ribs are slidably embedded into the second embedded grooves.
4. The screed of claim 3, wherein said first rib and said second rib are square in cross-section, said second rib being in close engagement with said first recess, said first rib being in close engagement with said second recess.
5. A screed according to claim 3, wherein a plurality of said first ribs are equally spaced and a plurality of said second ribs are equally spaced.
6. The screed of claim 1, wherein more than one of said second bodies is layered on said first body.
7. The screed according to claim 6, wherein said second main body further has a third coupling structure arranged in a center-symmetrical manner, said third coupling structure and said second coupling structure being provided on a front surface and a rear surface of said second main body, respectively, said third coupling structure being detachably coupled to said second coupling structure so as to couple adjacent two of said second main bodies.
8. The squeegee of any one of claims 1 to 7 wherein the first body further has a support portion that projects relative to an upper side of the second body.
9. A doctor apparatus comprising a holder, further comprising a doctor blade according to any one of claims 1 to 8, said doctor blade being fixed to said holder.
10. A screen printing apparatus comprising:
a screen plate;
characterized by further comprising:
doctor apparatus comprising a support and a squeegee according to any one of claims 1 to 8, the squeegee being secured to the support and the squeegee being for contact with the stencil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222636517.2U CN218928920U (en) | 2022-09-30 | 2022-09-30 | Scraper blade, scraper device and screen printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222636517.2U CN218928920U (en) | 2022-09-30 | 2022-09-30 | Scraper blade, scraper device and screen printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218928920U true CN218928920U (en) | 2023-04-28 |
Family
ID=86065457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222636517.2U Active CN218928920U (en) | 2022-09-30 | 2022-09-30 | Scraper blade, scraper device and screen printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218928920U (en) |
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2022
- 2022-09-30 CN CN202222636517.2U patent/CN218928920U/en active Active
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