Scraper mechanism and screen printing device

Abstract

The utility model relates to a scraper mechanism and a silk-screen printing device, the scraper mechanism comprises a mounting frame, a rotating shaft and a scraper, the mounting frame is provided with a plurality of clamping grooves, all the clamping grooves are arranged at intervals in the circumferential direction of the rotating shaft, the rotating shaft is rotatably connected with the mounting frame, and the rotating shaft is convexly provided with a clamping part and can axially move relative to the mounting frame; therefore, the rotating shaft can be switched between a locking state and an unlocking state. In a locking state, the clamping part is inserted into one of the clamping grooves to limit the rotation of the rotating shaft; in an unlocking state, the clamping part retreats from the clamping groove, so that the rotating shaft can rotate relative to the mounting frame, and the scraper is connected with the rotating shaft and can synchronously move along with the rotating shaft. The scraper mechanism and the silk-screen printing device can improve the production efficiency of a production line and reduce the cost.

Description

Technical Field

[0001] The present application relates to the technical field of screen printing, and in particular to a scraper mechanism and a screen printing device. Background Art

[0002] Screen printing is an important process in the production of solar cells. During screen printing, photosensitive glue is first applied to the printing screen, and then the cell is placed on the printing platform. A scraper is moved on the printing screen to squeeze the photosensitive glue on the printing screen, so that the photosensitive glue is transferred to the cell through the mesh of the printing screen. The cell is then exposed to light by a photolithography machine to create grooves in the cell at the location of the photosensitive glue. Subsequently, metal copper ions are electroplated in the grooves on the surface of the cell to form grid lines on the surface of the cell.

[0003] The quality of screen printing directly impacts the quality of the grid lines on the cell. Controlling the wet weight of the photosensitive adhesive applied to the cell is an effective method for controlling screen printing quality. Currently, the primary method for controlling the wet weight of the photosensitive adhesive on the cell is to replace printing screens with different mesh sizes and squeegees with different angles. However, this method requires downtime for squeegee removal and installation, significantly impacting production efficiency. Furthermore, the need to use squeegees at different angles increases costs. Utility Model Content

[0004] Based on this, it is necessary to provide a scraper mechanism and a screen printing device, which can flexibly adjust the angle of the scraper to improve the production efficiency of the production line and reduce costs.

[0005] In one aspect, the present application provides a scraper mechanism, comprising:

[0006] A mounting frame, wherein the mounting frame is provided with a plurality of slots;

[0007] A rotating shaft; the rotating shaft is rotatably connected to the mounting bracket, a clamping portion is convexly provided on the rotating shaft, all the clamping slots are arranged at intervals around the circumference of the rotating shaft, and the rotating shaft can move axially relative to the mounting bracket to switch the rotating shaft between a locked state and an unlocked state; in the locked state, the clamping portion is inserted into one of the clamping slots to limit the rotation of the rotating shaft; in the unlocked state, the clamping portion exits the clamping slot to allow the rotating shaft to rotate relative to the mounting bracket; and

[0008] The scraper is connected to the rotating shaft and can move synchronously with the rotating shaft.

[0009] The technical solution is further described below:

[0010] In one embodiment, the scraper mechanism further includes a first elastic member, wherein the first elastic member is connected to the rotating shaft, and the first elastic member is used to maintain the rotating shaft in the locked state.

[0011] In one embodiment, the mounting frame includes a fixing seat, a turntable and a dial, the turntable and the dial are arranged on the fixing seat opposite to each other, the turntable is provided with a first through hole, all the slots are provided on the turntable and are arranged at circumferential intervals around the first through hole, and the dial is provided with a second through hole; one end of the rotating shaft is passed through the first through hole and is gapped with the first through hole; the other end of the rotating shaft passes through the second through hole and is gapped with the second through hole; the scraper is located between the turntable and the dial.

[0012] In one embodiment, a boss portion is protruding from the rotating shaft, and the boss portion is arranged opposite to the dial. The first elastic member is sleeved on the rotating shaft, and one end of the first elastic member is connected to the boss portion, and the other end of the first elastic member is connected to the dial.

[0013] In one embodiment, a scale line is provided on the side of the dial facing away from the turntable, and a pointer is provided at one end of the rotating shaft passing through the second through hole. The pointer cooperates with the scale line to indicate the inclination angle of the scraper.

[0014] In one embodiment, the scraper includes a fixing frame and a scraping strip, one end of the fixing frame is detachably connected to the rotating shaft, and the other end of the fixing frame is connected to the scraping strip.

[0015] In one embodiment, the scraper mechanism further includes an auxiliary support assembly, one end of the auxiliary support assembly is connected to the mounting frame, and the other end of the auxiliary support assembly is detachably connected to the fixing frame.

[0016] In one embodiment, the auxiliary support assembly includes a second elastic member and a pressure block, one end of the second elastic member is connected to the mounting bracket, and the other end of the second elastic member is connected to the pressure block, the fixing bracket is provided with a protrusion, the protrusion abuts against the pressure block, and the surface where the protrusion abuts against the pressure block is a first inclined surface, and along the direction in which the clamping portion is inserted into the clamping slot, the height of the first inclined surface gradually decreases, and the surface where the pressure block abuts against the protrusion is a second inclined surface, and the second inclined surface matches the first inclined surface.

[0017] In one embodiment, the central angle corresponding to the interval between two adjacent slots is less than or equal to 1°.

[0018] On the other hand, the present application also provides a screen printing device, comprising the above-mentioned scraper mechanism.

[0019] In the above-described scraper mechanism and screen printing device, a mounting frame is provided with a plurality of slots spaced circumferentially around a rotating shaft. A protruding engaging portion is provided on the rotating shaft. The rotating shaft is axially movable relative to the mounting frame to switch between a locked and unlocked state. In the locked state, the engaging portion is inserted into one of the slots to restrict rotation of the rotating shaft. In the unlocked state, the engaging portion exits the slot, allowing rotation of the rotating shaft relative to the mounting frame. Thus, to adjust the scraper's tilt angle α relative to the printing screen, the rotating shaft is simply pulled axially until the engaging portion exits the slot, unlocking the rotating shaft. Rotating the rotating shaft then adjusts the scraper's tilt angle α. After the scraper is adjusted to the desired tilt angle α, the rotating shaft is pushed axially until the engaging portion enters the corresponding slot, locking the rotating shaft. Rotation of the rotating shaft relative to the mounting frame is now restricted by the engagement between the engaging portion and the slot, fixing the scraper's tilt angle α. This allows for flexible adjustment of the scraper's tilt angle α. This solution is comparable to conventional solutions that require replacement of scrapers at different angles. The scraper mechanism of the present application realizes the adjustment of the scraper's tilt angle α without replacing the scraper, saving the material cost of purchasing scrapers of different angles, and eliminating the need for long-term downtime during the adjustment process, thereby ensuring the production efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only for illustrative purposes and are not necessarily drawn to true scale.

[0023] Figure 1 Schematic diagram of the structure of a scraper mechanism according to an embodiment.

[0024] Figure 2 A side view of a scraper mechanism according to an embodiment.

[0025] Figure 3 A side view of a scraper mechanism according to another embodiment.

[0026] Description of reference numerals:

[0027] 10, mounting frame; 11, fixing seat; 12, rotating disc; 121, first through hole; 13, dial; 132, second through hole; 20, rotating shaft; 21, first rotating rod; 211, clamping portion; 22, second rotating rod; 221, boss portion; 222, pointer; 223, knob; 30, scraper; 31, fixing frame; 311, protruding portion; 312, first inclined surface; 32, scraping strip; 40, first elastic member; 50, auxiliary supporting assembly; 51, second elastic member; 52, pressing block; 521, second inclined surface. DETAILED DESCRIPTION

[0028] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those specifically described herein, and it is to be understood that the present application is not limited to the specific embodiments disclosed, but is open to equivalent adaptations.

[0029] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0031] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0034] An embodiment of the present application provides a scraper mechanism that can be used in screen printing. Specifically, see Figures 1 to 3 The scraper mechanism of one embodiment includes a mounting frame 10, a rotating shaft 20, and a scraper 30. The mounting frame 10 is provided with a plurality of slots (not shown), all of which are spaced apart circumferentially around the rotating shaft 20. The rotating shaft 20 is rotatably connected to the mounting frame 10. A latching portion 211 is protruding from the rotating shaft 20, and the rotating shaft 20 is capable of axial movement relative to the mounting frame 10, thereby enabling the rotating shaft 20 to switch between a locked state and an unlocked state. In the locked state, the latching portion 211 is inserted into one of the slots to restrict the rotation of the rotating shaft 20. In the unlocked state, the latching portion 211 is removed from the slot, allowing the rotating shaft 20 to rotate relative to the mounting frame 10. The scraper 30 is connected to the rotating shaft 20 and can move synchronously with the rotating shaft 20.

[0035] In the scraper mechanism described above, the mounting frame 10 is provided with a plurality of slots spaced circumferentially around the rotating shaft 20. A protruding engaging portion 211 is provided on the rotating shaft 20. The rotating shaft 20 is capable of axial movement relative to the mounting frame 10 to switch between a locked and unlocked state. In the locked state, the engaging portion 211 is inserted into one of the slots to restrict the rotation of the rotating shaft 20. In the unlocked state, the engaging portion 211 exits the slot, allowing the rotating shaft 20 to rotate relative to the mounting frame 10. Thus, when it is necessary to adjust the inclination angle α of the scraper 30 relative to the printing screen, the rotating shaft 20 is simply pulled axially until the engaging portion 211 exits the slot, thereby entering the unlocked state. The inclination angle α of the scraper 30 can then be adjusted by rotating the rotating shaft 20. After the scraper 30 is adjusted to the required inclination angle α, the rotating shaft 20 is pushed axially to the clamping portion 211 and inserted into the corresponding slot, so that the rotating shaft 20 enters a locked state. At this time, the rotation of the rotating shaft 20 relative to the mounting frame 10 is restricted by the clamping portion 211 and the slot, and the inclination angle α of the scraper 30 can be fixed, thereby achieving flexible adjustment of the inclination angle α of the scraper 30. Compared with the traditional solution that requires replacement of scrapers 30 at different angles, the scraper mechanism of the present application achieves the adjustment of the inclination angle α of the scraper 30 without replacing the scraper 30, saving the material cost of purchasing scrapers 30 of different angles, and does not require long-term downtime during the adjustment process, thereby ensuring the production efficiency of the production line.

[0036] Specifically, see Figure 1 In one embodiment, the mounting frame 10 includes a fixing base 11, a turntable 12, and a dial 13. The turntable 12 and the dial 13 are arranged on the fixing base 11 opposite to each other. The turntable 12 has a first through hole 121. All the slots are provided on the turntable 12 and are arranged at intervals around the circumference of the first through hole 121. Figure 2 The dial 13 defines a second through-hole 132. One end of the rotating shaft 20 passes through the first through-hole 121 and is loosely engaged with the first through-hole 121. The other end of the rotating shaft 20 passes through the second through-hole 132 and is loosely engaged with the second through-hole 132. The scraper 30 is positioned between the rotating disc 12 and the dial 13, allowing the rotating shaft 20 to rotate and move axially relative to the mounting frame 10. Furthermore, the end of the rotating shaft 20 that passes through the second through-hole 132 can be connected to a knob 223 for easy gripping by a worker.

[0037] See also Figure 1In one embodiment, the scraper mechanism further includes a first elastic member 40 connected to the rotating shaft 20. The first elastic member 40 is used to maintain the rotating shaft 20 in a locked state. Specifically, when the rotating shaft 20 is in the locked state, the first elastic member 40 is compressed. At this time, the first elastic member 40 can provide a pressing force on the rotating shaft 20 toward the slot, firmly retaining the engaging portion 211 in the slot. This prevents the engaging portion 211 from being dislodged from the slot during operation of the scraper 30, which could cause the scraper 30 to loosen. To adjust the inclination angle α of the scraper 30, the rotating shaft 20 is pulled axially to move the engaging portion 211 out of the slot. The rotating shaft 20 can now rotate freely to adjust the inclination angle α of the scraper 30. The first elastic member 40 is further compressed. Once the scraper 30 is adjusted to the desired inclination angle α, the rotating shaft 20 is released, and the first elastic member 40 pushes the rotating shaft 20 to automatically return to the locked state, making operation more convenient and labor-saving.

[0038] Continue to see Figure 1 Optionally, in one embodiment, a boss portion 221 is provided on the rotating shaft 20, and the boss portion 221 is disposed opposite the dial 13. A first elastic member 40 is sleeved onto the rotating shaft 20, with one end of the first elastic member 40 connected to the boss portion 221 and the other end of the first elastic member 40 connected to the dial 13. This secures the first elastic member 40 to the rotating shaft 20 and ensures that the elastic force exerted by the first elastic member 40 on the rotating shaft 20 is directed toward the dial 12, thereby ensuring that the engaging portion 211 can be stably inserted into the engaging slot when the rotating shaft 20 is locked. Exemplarily, the first elastic member 40 is a spring.

[0039] In another embodiment, one end of the first elastic member 40 may be connected to the boss portion 221, and the other end may be connected to the turntable 12. The first elastic member 40 provides a pulling force toward the turntable 12 for the rotating shaft 20, thereby driving the rotating shaft 20 into and maintaining it in a locked state.

[0040] Optionally, in one embodiment, a scale line is provided on the side of the dial 13 facing away from the turntable 12, and a pointer 222 is provided at one end of the rotating shaft 20 passing through the second through hole 132. The pointer 222 cooperates with the scale line to indicate the inclination angle α of the scraper 30 relative to the printing screen, so that the inclination angle α of the scraper 30 can be observed more intuitively, which is convenient for the staff to operate.

[0041] See also Figure 1 The scraper 30 includes a fixing frame 31 and a scraping strip 32. One end of the fixing frame 31 is detachably connected to the rotating shaft 20, and the other end of the fixing frame 31 is connected to the scraping strip 32. For example, the fixing frame 31 is connected to the rotating shaft 20 by a screw or other threaded connection, which facilitates the subsequent maintenance and update of the scraper 30. The hanging strip can be made of soft rubber to avoid scratching the screen.

[0042] Optionally, in one embodiment, the scraper mechanism further includes an auxiliary support assembly 50, one end of which is connected to the mounting frame 10, and the other end of which is connected to the fixing frame 31. The auxiliary support is used to support the scraper 30 to improve the stability of the scraper 30 and prevent the scraper 30 from shaking due to its own weight.

[0043] Specifically, in one embodiment, the auxiliary support assembly 50 includes a second elastic member 51 and a pressure block 52. One end of the second elastic member 51 is connected to the mounting bracket 10, and the other end of the second elastic member 51 is connected to the pressure block 52. The pressure block 52 is used to abut against the fixing bracket 31, and the second elastic member 51 is used to resist the gravity of the scraper 30. Furthermore, when the scraper 30 is in operation, the second elastic member 51 is in a compressed state, thereby providing a thrust for the scraper 30 to resist gravity, thereby preventing the scraper 30 from shaking during operation due to being too large or the rotation axis being too far from the center of gravity. Moreover, when the rotating shaft 20 is in the unlocked position, the auxiliary support assembly 50 can also assist in supporting the scraper 30, making the adjustment operation more convenient and labor-saving.

[0044] Furthermore, the fixing frame 31 is provided with a protruding portion 311, which abuts and cooperates with the pressure block 52. The surface where the protruding portion 311 and the pressure block 52 abut is a first inclined surface 312. As the engaging portion 211 is inserted into the engaging slot, the height of the first inclined surface 312 gradually decreases. The surface where the pressure block 52 abuts against the protruding portion 311 is a second inclined surface 521, which matches the first inclined surface 312. For example, both the protruding portion 311 and the pressure block 52 are wedge-shaped structures. In this way, when the rotating shaft 20 is pulled to enter the unlocked state, interference between the protruding portion 311 and the pressure block 52 is avoided, ensuring smooth movement of the rotating shaft 20. When the inclination angle α of the scraper 30 is adjusted to the desired angle, the protruding portion 311 and the pressure block 52 can be re-abutted by pushing the rotating shaft 20, utilizing the cooperation between the first inclined surface 312 and the second inclined surface 521.

[0045] See also Figure 1 Alternatively, in one embodiment, the rotating shaft 20 may include a first rotating rod 21 and a second rotating rod 22. One end of the first rotating rod 21 is fixedly connected to the protrusion 311, and the other end is inserted into the first through-hole 121 of the rotating disk 12. The clamping portion 211 is provided on the first rotating rod 21. One end of the second rotating rod 22 is fixedly connected to the protrusion 311, and the other end is inserted into the second through-hole 132 of the dial 13. The first elastic member 40 is connected to the second rotating rod 22. It is understood that in other embodiments, the rotating shaft 20 may also be a complete rod.

[0046] Optionally, in one embodiment, the central angle corresponding to the interval between two adjacent slots is less than or equal to 1°, so that the adjustable tilt angle α of the scraper 30 is more accurate, and the difference between two adjacent tilt angles α can be less than or equal to 1°, thereby being able to meet different printing angle requirements.

[0047] One embodiment of the present application further provides a screen printing device. Specifically, the screen printing device of one embodiment includes a scraper mechanism according to any of the above embodiments. The angle-adjustable scraper mechanism can improve the printing efficiency of the screen printing device and reduce costs.

[0048] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A scraper mechanism, characterized in that: include: A mounting frame (10), wherein the mounting frame (10) is provided with a plurality of slots; A rotating shaft (20); the rotating shaft (20) is rotatably connected to the mounting frame (10); a clamping portion (211) is convexly provided on the rotating shaft (20); all the clamping slots are arranged at circumferential intervals around the rotating shaft (20); the rotating shaft (20) can move axially relative to the mounting frame (10) so that the rotating shaft (20) can switch between a locked state and an unlocked state; in the locked state, the clamping portion (211) is inserted into one of the clamping slots to limit the rotation of the rotating shaft (20); in the unlocked state, the clamping portion (211) exits the clamping slot so that the rotating shaft (20) can rotate relative to the mounting frame (10); and A scraper (30) is connected to the rotating shaft (20) and can move synchronously with the rotating shaft (20).

2. The scraper mechanism according to claim 1, characterized in that: The scraper mechanism further comprises a first elastic member (40), the first elastic member (40) being connected to the rotating shaft (20), and the first elastic member (40) being used to maintain the rotating shaft (20) in the locked state.

3. The scraper mechanism according to claim 2, characterized in that: The mounting frame (10) comprises a fixing seat (11), a turntable (12) and a dial (13); the turntable (12) and the dial (13) are arranged on the fixing seat (11) opposite to each other; the turntable (12) is provided with a first through hole (121); all the slots are provided on the turntable (12) and are arranged at intervals around the first through hole (121); the dial (13) is provided with a second through hole (132); one end of the rotating shaft (20) is passed through the first through hole (121) and is clearance-matched with the first through hole (121); the other end of the rotating shaft (20) is passed through the second through hole (132) and is clearance-matched with the second through hole (132); the scraper (30) is located between the turntable (12) and the dial (13).

4. The scraper mechanism according to claim 3, characterized in that: A boss portion (221) is protruded from the rotating shaft (20), and the boss portion (221) is arranged opposite to the dial (13). The first elastic member (40) is sleeved on the rotating shaft (20), and one end of the first elastic member (40) is connected to the boss portion (221), and the other end of the first elastic member (40) is connected to the dial (13).

5. The scraper mechanism according to claim 3, characterized in that: A scale line is provided on the side of the dial (13) facing away from the turntable (12), and a pointer (222) is provided at one end of the rotating shaft (20) passing through the second through hole (132). The pointer (222) cooperates with the scale line to indicate the inclination angle of the scraper (30).

6. The scraper mechanism according to claim 1, characterized in that: The scraper (30) comprises a fixing frame (31) and a scraping strip (32), one end of the fixing frame (31) is detachably connected to the rotating shaft (20), and the other end of the fixing frame (31) is connected to the scraping strip (32).

7. The scraper mechanism according to claim 6, characterized in that: The scraper mechanism further comprises an auxiliary support assembly (50), one end of the auxiliary support assembly (50) is connected to the mounting frame (10), and the other end of the auxiliary support assembly (50) is detachably connected to the fixing frame (31).

8. The scraper mechanism according to claim 7, characterized in that: The auxiliary support assembly (50) includes a second elastic member (51) and a pressure block (52), one end of the second elastic member (51) is connected to the mounting frame (10), and the other end of the second elastic member (51) is connected to the pressure block (52), the fixing frame (31) is provided with a protruding portion (311), the protruding portion (311) and the pressure block (52) are in abutment with each other, and the surface where the protruding portion (311) and the pressure block (52) abut against each other is a first inclined surface (312), along the direction in which the clamping portion (211) is inserted into the clamping slot, the height of the first inclined surface (312) gradually decreases, the surface where the pressure block (52) and the protruding portion (311) abut against each other is a second inclined surface (521), and the second inclined surface (521) matches the first inclined surface (312).

9. The scraper mechanism according to any one of claims 1 to 8, characterized in that: The central angle corresponding to the interval between two adjacent card slots is less than or equal to 1°.

10. A screen printing device, characterized in that: The invention comprises the scraper mechanism according to any one of claims 1 to 9.

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