Peripheral auxiliary dustproof device for glass screen printing machine

Abstract

The invention relates to the technical field of glass processing, and particularly discloses a peripheral auxiliary dustproof device for a glass screen printing machine, which comprises a profile frame, and a workbench is arranged on the profile frame; a front-back adjusting assembly is installed on the workbench, a sectional material supporting column is arranged on the workbench, and a lifting adjusting assembly is installed on the sectional material supporting column. The dustproof assembly has the dust removal state and the contraction state, when the dustproof assembly is in the contraction state, the dustproof assembly is located on the upper side of the screen printing unit, screen printing work of the screen printing unit is not affected, when the dustproof assembly is in the dust removal state, the dustproof assembly is located on the lower side of the screen printing unit, and at the moment, the dustproof assembly is started; the dust on the glass at the top of the workbench can be wiped away through cooperation with the three-axis moving unit, during specific operation, the power unit drives the driving roller to rotate, then the wiping cloth is driven to rotate, the wiping cloth is aligned to the upper surface of the glass, and the dust attached to the upper surface of the glass can be wiped away in the rotating process of the wiping cloth.

Description

Technical Field

[0001] The present invention belongs to the technical field of glass processing, and particularly relates to a peripheral auxiliary dust-proof device for a glass screen printing machine. Background Art

[0002] Glass screen printing is a technology for decorative printing on glass products. A screen printing machine is a printing machine. Screen printing belongs to stencil printing, and it is called one of the four major printing methods together with lithography, letterpress printing, and gravure printing.

[0003] Before performing screen printing on glass, it is necessary to ensure that there is no dust on the outer surface of the glass. If dust remains, the dust will affect the adhesion effect of the ink, causing the ink to flow due to insufficient adhesion after reaching the glass, resulting in patterns other than the designed ones on the finished product after screen printing. Moreover, the presence of dust will affect the color difference in the screen printing area formed after the ink adheres, affecting the aesthetic performance of the finished product. Therefore, this application proposes a peripheral auxiliary dust-proof device for a glass screen printing machine. Summary of the Invention

[0004] The purpose of the present invention is to provide a peripheral auxiliary dust-proof device for a glass screen printing machine to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution. A peripheral auxiliary dust-proof device for a glass screen printing machine includes a profile frame, and a workbench is arranged on the profile frame;

[0006] A front-back adjustment component is installed on the workbench, profile columns are arranged on the workbench, a lifting adjustment component is installed on the profile columns, and the lifting adjustment component is connected with a lifting frame;

[0007] A left-right adjustment component is installed on the lifting frame, and the left-right adjustment component is connected with a screen printing unit;

[0008] A dust-proof component and a winding and unwinding component are arranged on the screen printing unit;

[0009] The winding and unwinding component is used to drive the dust-proof component to move, so that the dust-proof component has two states: a dust-removing state and a contracted state. When the dust-proof component is in the dust-removing state, the dust-proof component cooperates with a three-axis moving unit to wipe off the dust on the top of the glass on the upper side of the workbench;

[0010] When the dust-proof component is in the contracted state, the dust-proof component is located on the upper side of the screen printing unit.

[0011] Preferably, the winding and unwinding component includes a first gear, a second gear, and a power motor. The first gear is sleeved with a rotating shaft, the rotating shaft is inserted with a wiping frame, the first gear is in meshing transmission connection with the second gear through teeth, a power shaft is inserted into the second gear, and the power shaft is connected with the power motor through a coupling.

[0012] Preferably, the front-back adjustment assembly includes a front-back adjustment base, a front-back adjustment lead screw, and a front-back adjustment motor. The front-back adjustment base is installed at the bottom of the workbench, and the front-back adjustment base is threadedly connected to the front-back adjustment lead screw. The workbench is slidably connected to the profile frame in the front-back direction, and the output end of the front-back adjustment motor is connected to the front-back adjustment lead screw.

[0013] Preferably, a distance limiting block is provided at the bottom of the workbench, a limiting wheel is provided on the profile frame, and a fixing frame is inserted into the limiting wheel.

[0014] Preferably, the fixing frame is connected to the limiting wheel through a bearing, the fixing frame is detachably installed on the profile frame by bolts, and the distance limiting block is aligned with the limiting wheel in the front-back direction.

[0015] Preferably, the lifting adjustment assembly includes a lifting adjustment lead screw, a lifting adjustment nut, and a lifting adjustment motor. The lifting adjustment lead screw is threadedly connected to the lifting adjustment nut, and the lifting adjustment nut is only slidable relative to the profile column in the up-down direction.

[0016] Preferably, the left-right adjustment assembly includes two cross plates, the two cross plates are respectively connected to the two lifting adjustment nuts, a cross bar is installed between the two cross plates, a left-right sliding member is installed on the cross bar, and the left-right sliding member can slide left and right along the cross bar.

[0017] Preferably, the dust-proof assembly includes a transmission belt, a wiping cloth, a driving roller, and a power unit. The wiping cloth covers the outside of the transmission belt.

[0018] Preferably, the transmission belt is connected to the driving roller, the power unit is used to drive at least one driving roller to rotate, the driving roller is inserted with a wiping frame, the wiping frame is installed on the support frame, and two groups of guiding units are installed on the wiping frame. The guiding unit includes a lower guiding wheel, an upper guiding wheel, and a mounting frame. The lower guiding wheel and the upper guiding wheel are respectively located on the upper and lower sides of the transmission belt, and the lower guiding wheel and the upper guiding wheel are both inserted into the mounting frame, and the mounting frame is installed on the wiping frame.

[0019] Preferably, a tensioning wheel is provided between the two guiding units. The tensioning wheel is provided with a first connecting plate and a second connecting plate. The tensioning wheel is connected to one of the guiding units through the first connecting plate, and the tensioning wheel is connected to the other guiding unit through the second connecting plate. The first connecting plate and the second connecting plate are connected by a spring. A sliding groove is provided in one of the guiding units, and a guiding plate is inserted into the sliding groove. The guiding plate is arranged on the wiping frame.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The front-back adjustment component, up-down adjustment component, and left-right adjustment component of the present invention jointly form a three-axis movement unit. The three-axis movement unit is used to adjust the relative positions of the workbench and the screen printing unit in the front-back, up-down, and left-right directions, enabling the screen printing unit to cover most positions on the workbench. When the screen printing unit is started, it can apply ink to the screen printing stencil, and the ink passes through the holes in the screen printing stencil to reach the glass on the upper side of the workbench. After the ink dries, the screen printing work of the glass is completed, and the screen printing work can be carried out on various positions of the glass on the workbench, with a large coverage area and strong adaptability.

[0022] 2. The dust-proof component of the present invention has two states: a dust-removing state and a contracted state. When the dust-proof component is in the contracted state, it is located above the screen printing unit and does not affect the screen printing work of the screen printing unit. When the dust-proof component is in the dust-removing state, it is located below the screen printing unit. At this time, the dust-proof component is started, and in cooperation with the three-axis movement unit, the dust on the glass at the top of the workbench can be wiped off. During specific operation, the power unit drives the driving roller to rotate, and then drives the wiping cloth to rotate. The wiping cloth is aligned with the upper surface of the glass, and the dust adhered to the upper surface of the glass can be wiped off during the rotation of the wiping cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view structural schematic diagram of the peripheral auxiliary dust-proof device for the glass screen printing machine in the present invention.

[0024] Figure 2 It is a side view of the peripheral auxiliary dust-proof device for the glass screen printing machine in the present invention.

[0025] Figure 3 It is a bottom view of the peripheral auxiliary dust-proof device for the glass screen printing machine in the present invention.

[0026] Figure 4 It is a structural schematic diagram when the dust-proof component of the present invention is in the contracted state.

[0027] Figure 5 It is the first structural schematic diagram of the dust-proof component of the present invention.

[0028] Figure 6 It is the second structural schematic diagram of the dust-proof component of the present invention.

[0029] Figure 7 It is a structural schematic diagram of the transmission belt and the wiping cloth in the present invention.

[0030] In the figure: 1, profile frame; 2, workbench; 3, front and rear adjustment component; 301, front and rear adjustment seat; 302, front and rear adjustment lead screw; 303, distance limiting block; 304, limiting wheel; 4, profile support; 5, lifting adjustment component; 501, lifting adjustment lead screw; 502, lifting adjustment nut; 6, lifting frame; 7, left and right adjustment component; 701, horizontal plate; 702, cross bar; 703, left and right sliding member;

[0031] 8, screen printing unit; 801, screen printing housing; 802, screen printing stencil; 9, dust-proof component; 901, drive belt; 902, wiping cloth; 903, driving roller; 905, lower guide wheel; 906, upper guide wheel; 907, tensioning wheel; 908, first connecting plate; 909, second connecting plate; 910, mounting bracket; 911, guide plate; 10, winding and unwinding component; 1001, first gear; 1002, second gear; 1003, power motor; 11, storage rack; 12, dust suction device. Specific implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Refer to Figures 1-7 , a peripheral auxiliary dust-proof device for a glass screen printer, including a profile frame 1, a workbench 2 is arranged on the profile frame 1, and two parallelly distributed steel pipes are installed at the bottom of the profile frame 1, and the steel pipes are used as components to support the entire profile frame 1 and the device.

[0034] The workbench 2 serves as a platform for glass screen printing, and the glass screen printing process is carried out here. In order to meet the screen printing requirements of a variety of different glasses, it is necessary to expand the area where glass can be screen printed as much as possible. Therefore, a front and rear adjustment component 3 is installed on the workbench 2, and the front and rear adjustment component 3 is used to drive the workbench 2 to move back and forth.

[0035] According to Figure 3 , specifically, the front and rear adjustment component 3 includes a front and rear adjustment seat 301, a front and rear adjustment lead screw 302, and a front and rear adjustment motor. The front and rear adjustment seat 301 is installed at the bottom of the workbench 2, and the front and rear adjustment seat 301 is threadedly connected to the front and rear adjustment lead screw 302. The workbench 2 is slidably connected to the profile frame 1 in the front and rear directions, and the output end of the front and rear adjustment motor is connected to the front and rear adjustment lead screw 302;

[0036] More specifically, in order to limit the movement range of the front and rear adjustment component 3, a distance limiting block 303 is provided at the bottom of the workbench 2, and a limiting wheel 304 is provided on the profile frame 1. A fixing frame is inserted into the limiting wheel 304, and the fixing frame is connected to the limiting wheel 304 through a bearing. The fixing frame is detachably mounted on the profile frame 1 through bolts, and the distance limiting block 303 and the limiting wheel 304 are aligned front and rear.

[0037] According to Figure 2 , in order to facilitate the adjustment of the vertical position of the screen printing unit 8 (refer to Figure 1 ), a profile support column 4 is provided on the workbench 2, and a lifting adjustment component 5 is mounted on the profile support column 4. The lifting adjustment component 5 is connected to a lifting frame 6, and the lifting adjustment component 5 is used to drive the lifting frame 6 to move up and down.

[0038] Specifically, the lifting adjustment component 5 includes a lifting adjustment lead screw 501, a lifting adjustment nut 502, and a lifting adjustment motor. The lifting adjustment lead screw 501 is threadedly connected to the lifting adjustment nut 502, and the lifting adjustment nut 502 can only slide up and down relative to the profile support column 4.

[0039] According to Figure 2 , in order to facilitate the adjustment of the position of the screen printing unit 8 in the left and right directions (refer to Figure 1 ), a left and right adjustment component 7 is mounted on the lifting frame 6, and the left and right adjustment component 7 is connected to the screen printing unit 8;

[0040] Specifically, the left and right adjustment component 7 includes two cross plates 701. The two cross plates 701 are respectively connected to the two lifting adjustment nuts 502. A cross bar 702 is installed between the two cross plates 701. A left and right sliding member 703 is installed on the cross bar 702, and the left and right sliding member 703 can slide left and right along the cross bar 702. It should be noted that the cross bar 702 can also be a lead screw, which is threadedly connected to the left and right sliding member 703. In order to prevent the left and right sliding member 703 from rotating together with the cross bar 702, two parallel cross bars 702 can be provided.

[0041] The front and rear adjustment component 3, the lifting adjustment component 5, and the left and right adjustment component 7 together form a three-axis movement unit. The three-axis movement unit is used to adjust the relative positions of the workbench 2 and the screen printing unit 8 in the front and rear, up and down, and left and right directions, so that the screen printing unit 8 can cover most positions on the workbench 2 and can perform screen printing work on the glass on the upper side of the workbench 2.

[0042] It should be noted that the screen printing unit 8 includes a screen printing housing 801 and a screen printing stencil 802, and the screen printing stencil 802 is aligned with the workbench 2. The screen printing unit 8 can apply ink to the screen printing stencil 802, and the ink passes through the holes in the screen printing stencil 802 to reach the glass on the upper side of the workbench 2, and the screen printing work of the glass is completed after the ink dries.

[0043] Before the screen printing unit 8 performs screen printing operations on the glass, it is necessary to ensure that there is no dust on the outer surface of the glass. If there is residual dust, the dust will affect the adhesion effect of the ink, resulting in the ink flowing due to insufficient adhesion after reaching the glass, causing patterns other than the designed ones to appear on the finished product after screen printing. Moreover, the presence of dust will affect the color difference in the screen printing area formed after the ink adheres, affecting the aesthetic performance of the finished product. Therefore, a dust-proof component 9, a winding and unwinding component 10, and a dust suction device 12 are provided on the screen printing unit 8.

[0044] The winding and unwinding component 10 is used to drive the dust-proof component 9 to move, so that the dust-proof component 9 has two states: a dust removal state and a contraction state. When the dust-proof component 9 is in the dust removal state, the dust-proof component 9 is located below the screen printing unit 8. At this time, the dust-proof component 9 is activated, and in cooperation with the three-axis moving unit, the dust on the top of the glass on the upper side of the workbench 2 can be wiped off.

[0045] When the dust-proof component 9 is in the contraction state, the dust-proof component 9 is located above the screen printing unit 8 and does not affect the screen printing work of the screen printing unit 8.

[0046] Specifically, the dust-proof component 9 includes a transmission belt 901, a wiping cloth 902, a driving roller 903, and a power unit. The wiping cloth 902 covers the outside of the transmission belt 901. Refer to Figure 7 Both ends of the wiping cloth 902 are provided with corresponding skirt edges to receive the transmission belt 901 therein. In this way, during the rotation of the transmission belt 901, the dust on the glass can be wiped. The wiping cloth 902 and the transmission belt 901 can be bonded by glue or connected by Velcro. When connected by Velcro, the outer end face of the wiping cloth 902 needs to be provided with fluff for wiping dust, and the inner end face of the wiping cloth 902 needs to be provided with a corresponding smoother material such as a plastic film or leather. A corresponding Velcro rough surface is installed on the inner end face of the wiping cloth 902, and a corresponding Velcro hook surface is installed on the outer end face of the transmission belt 901. In this way, the disassembly between the wiping cloth 902 and the transmission belt 901 is easier compared to the glue connection method.

[0047] More specifically, the transmission belt 901 is connected to the driving roller 903, and the power unit is used to drive at least one driving roller 903 to rotate. The driving roller 903 is inserted with a wiping frame, the wiping frame is installed on the support frame, and two groups of guiding units are installed on the wiping frame. The guiding unit includes a lower guiding wheel 905, an upper guiding wheel 906, and a mounting frame 910. The lower guiding wheel 905 and the upper guiding wheel 906 are respectively located on the upper and lower sides of the transmission belt 901. The lower guiding wheel 905 and the upper guiding wheel 906 are both inserted into the mounting frame 910, and the mounting frame 910 is installed on the wiping frame.

[0048] It should be noted that refer to Figure 6, a tensioning wheel 907 is arranged between the two guiding units. A first connecting plate 908 and a second connecting plate 909 are arranged on the tensioning wheel 907. The tensioning wheel 907 is connected to one of the guiding units through the first connecting plate 908, and the tensioning wheel 907 is connected to the other guiding unit through the second connecting plate 909. The first connecting plate 908 and the second connecting plate 909 are connected by a spring. A sliding groove is arranged in one of the guiding units, and a guiding plate 911 is inserted into the sliding groove. The guiding plate 911 is arranged on the wiping frame. That is, one of the guiding units is fixed on the wiping frame, and the other guiding unit is slidably connected to the wiping frame. The spring adjusts the distance between the two guiding units to keep the tensioning wheel 907 always pressing the transmission belt 901, so that the transmission belt 901 is always in a tensioned state, enabling it to wipe the dust on the glass.

[0049] In order to adjust the state of the dust-proof component 9, the winding and unwinding component 10 includes a first gear 1001, a second gear 1002, and a power motor 1003. The first gear 1001 is sleeved with a rotating shaft, and the wiping frame is inserted into the rotating shaft. The first gear 1001 and the second gear 1002 are connected by gear meshing transmission. A power shaft is inserted into the second gear 1002, and the power shaft and the power motor 1003 are connected by a coupling.

[0050] The dust suction device 12 is arranged on the dust-proof component 9. When it is started, it can suck away the dust adhered to the transmission belt 901 after wiping the glass.

[0051] In order to enable the dust-proof component 9 to be stably stored when in a contracted state, a storage rack 11 is arranged on the screen printing unit 8, and the storage rack 11 is installed on the screen printing housing 801.

[0052] Working principle:

[0053] The front and rear adjustment component 3, the lifting adjustment component 5, and the left and right adjustment component 7 together form a three-axis movement unit. The three-axis movement unit is used to adjust the relative positions of the workbench 2 and the screen printing unit 8 in the front and rear, up and down, and left and right directions, so that the screen printing unit 8 can cover most positions on the workbench 2. When the screen printing unit 8 is started, it can apply ink to the screen printing stencil 802. The ink passes through the holes in the screen printing stencil 802 and reaches the glass on the upper side of the workbench 2. After the ink dries, the screen printing work on the glass is completed, and the screen printing work can be carried out on various positions of the glass on the workbench 2, with a large coverage area and strong adaptability.

[0054] The dust-proof component 9 has two states: a dust-removing state and a contracted state. When the dust-proof component 9 is in the contracted state, it is located above the screen printing unit 8 and does not affect the screen printing work of the screen printing unit 8. When the dust-proof component 9 is in the dust-removing state, it is located below the screen printing unit 8. At this time, the dust-proof component 9 is activated, and in cooperation with the three-axis moving unit, it can wipe off the dust on the top glass of the workbench 2. During specific operations, the power unit drives the driving roller 903 to rotate, which in turn drives the wiping cloth 902 to rotate. The wiping cloth 902 is aligned with the upper surface of the glass, and during the rotation of the wiping cloth 902, it can wipe off the dust adhered to the upper surface of the glass;

[0055] Two guiding units are provided in the dust-proof component 9. One guiding unit is fixed to the wiping frame, and the other guiding unit is slidably connected to the wiping frame. The spring adjusts the distance between the two guiding units to keep the tensioning wheel 907 always pressing tightly against the transmission belt 901, so that the transmission belt 901 is always in a tensioned state, enabling it to wipe the dust on the glass.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A peripheral auxiliary dust-proof device for a glass screen printing machine, including a profile frame (1), characterized in that, A workbench (2) is provided on a profile frame (1); A front-back adjustment component (3) is installed on the workbench (2), a profile support column (4) is provided on the workbench (2), a lifting adjustment component (5) is installed on the profile support column (4), and the lifting adjustment component (5) is connected to a lifting frame (6); A left-right adjustment component (7) is installed on the lifting frame (6), and the left-right adjustment component (7) is connected to a silk-screen printing unit (8); A dust-proof component (9) and a winding and unwinding component (10) are provided on the silk-screen printing unit (8); The winding and unwinding component (10) is used to drive the dust-proof component (9) to move, so that the dust-proof component (9) has two states: a dust-removing state and a retracted state. When the dust-proof component (9) is in the dust-removing state, the dust-proof component (9) can cooperate with a three-axis moving unit to wipe off the dust on the top of the glass on the upper side of the workbench (2); When the dust-proof component (9) is in the retracted state, the dust-proof component (9) is located on the upper side of the silk-screen printing unit (8).

2. The peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 1, characterized in that, The winding and unwinding component (10) includes a first gear (1001), a second gear (1002), and a power motor (1003). A rotating shaft is sleeved on the first gear (1001), a wiping frame is inserted into the rotating shaft, the first gear (1001) is in meshing transmission connection with the second gear (1002), a power shaft is inserted into the second gear (1002), and the power shaft is connected to the power motor (1003) through a coupling.

3. The peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 1, characterized in that, The front-back adjustment component (3) includes a front-back adjustment seat (301), a front-back adjustment lead screw (302), and a front-back adjustment motor. The front-back adjustment seat (301) is installed at the bottom of the workbench (2), and the front-back adjustment seat (301) is threadedly connected to the front-back adjustment lead screw (302). The workbench (2) is slidably connected to the profile frame (1) in the front-back direction, and the output end of the front-back adjustment motor is connected to the front-back adjustment lead screw (302).

4. The peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 3, characterized in that A distance limiting block (303) is provided at the bottom of the workbench (2), a limiting wheel (304) is provided on the profile frame (1), and a fixing frame is inserted into the limiting wheel (304).

5. The peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 4, characterized in that, The fixing frame is connected to the limiting wheel (304) through a bearing, the fixing frame is detachably installed on the profile frame (1) through bolts, and the distance limiting block (303) is aligned with the limiting wheel (304) in the front-back direction.

6. The peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 1, wherein, The lifting adjustment component (5) includes a lifting adjustment lead screw (501), a lifting adjustment nut (502), and a lifting adjustment motor. The lifting adjustment lead screw (501) is threadedly connected to the lifting adjustment nut (502), and the lifting adjustment nut (502) can only slide up and down relative to the profile support column (4).

7. The peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 1, characterized in that, The left-right adjustment component (7) includes two cross plates (701). The two cross plates (701) are respectively connected to the two lifting adjustment nuts (502). A cross bar (702) is installed between the two cross plates (701), and a left-right sliding member (703) is installed on the cross bar (702). The left-right sliding member (703) can slide left and right along the cross bar (702).

8. A peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 1, characterized in that, The dust-proof component (9) includes a transmission belt (901), a wiping cloth (902), a driving roller (903), and a power unit. The wiping cloth (902) covers the outside of the transmission belt (901).

9. The peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 8, characterized in that, The transmission belt (901) is connected to the driving roller (903). The power unit is used to drive at least one driving roller (903) to rotate. A wiping frame is inserted into the driving roller (903). The wiping frame is installed on a support frame. Two sets of guiding units are installed on the wiping frame. The guiding unit includes a lower guiding wheel (905), an upper guiding wheel (906), and a mounting bracket (910). The lower guiding wheel (905) and the upper guiding wheel (906) are respectively located on the upper and lower sides of the transmission belt (901). The lower guiding wheel (905) and the upper guiding wheel (906) are both inserted into the mounting bracket (910), and the mounting bracket (910) is installed on the wiping frame.

10. The peripheral auxiliary dust-proof device for a glass screen printing machine according to claim 9, characterized in that, A tensioning wheel (907) is arranged between the two guiding units. A first connecting plate (908) and a second connecting plate (909) are arranged on the tensioning wheel (907). The tensioning wheel (907) is connected to one of the guiding units through the first connecting plate (908). The tensioning wheel (907) is connected to the other guiding unit through the second connecting plate (909). A spring is connected between the first connecting plate (908) and the second connecting plate (909). A sliding groove is arranged in one of the guiding units, and a guiding plate (911) is inserted into the sliding groove. The guiding plate (911) is arranged on the wiping frame.

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