Paint spraying device for door frame processing

Abstract

The paint spraying device for door frame machining comprises a paint spraying box, a first moving groove is formed in the center of one side of the bottom end of the inner wall of the paint spraying box, a first driving assembly is arranged in the first moving groove, a rotating transposition assembly is arranged on the first moving groove, and the first driving assembly is used for driving the rotating transposition assembly to move. A fixed limiting assembly is arranged on the side, away from the paint spraying box, of the rotating transposition assembly, the fixed limiting assembly is used for fixing and limiting the door frame, an annular second moving groove is formed in one side of the top end of the inner wall of the paint spraying box, and a second driving assembly is arranged in the second moving groove. According to the paint spraying device for the door frame, paint spraying can be conducted on the door frame rapidly and carefully in all directions, the paint spraying efficiency of the door frame is improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of doors and windows, in particular to a paint spraying device for door frame processing. Background Technique

[0002] In order to improve the protection performance of the door frame, enhance the beauty of the door frame and protect the door frame, the door frame will be spray-painted. Generally, a paint spraying device for door frame processing will be used. Chinese Patent Publication No.: CN212681396U discloses a paint spraying device for door frame processing, including a box body. The upper end of the inner surface of the box body is fixedly connected to the upper surface of a fixing plate. A transverse sliding groove for a moving block is opened on one side of the lower surface of the fixing plate, and a longitudinal sliding groove for the moving block is opened in the middle of the lower surface of the fixing plate. The middle of the transverse sliding groove for the moving block communicates with one end of the longitudinal sliding groove for the moving block. The inner surface of the longitudinal sliding groove for the moving block is slidably connected to one side of the moving block. The lower surface of the moving block is fixedly connected to one end of a hook, and the other end of the hook is hung on the upper end of the door frame. A spray head is provided on the inner surface of one side of the door frame. The middle curved surface of the spray head is fixedly connected to one end of a spray head support, and the other end of the spray head is fixedly connected to one end of a paint branch pipe. The other end of the paint branch pipe is fixedly connected to one end of a paint pipe.

[0003] Through the cooperation of the transverse sliding groove for the moving block and the longitudinal sliding groove for the moving block, while the door frame moves horizontally, the door frame can be moved longitudinally between the spray heads. Although this can spray the fine parts on both sides of the door frame or the parts with complex patterns, achieving the effect of uniform spraying and perfect detail treatment when spraying the door frame, when spraying the door frame, it is necessary to manually move the moving block to drive the door frame to move, so as to spray the details of the door frame. This not only wastes a lot of labor but also wastes a lot of time, resulting in low efficiency and poor practicability of door frame spraying. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide a paint spraying device for door frame processing, aiming to solve the problems of low efficiency and poor practicability of door frame spraying in the prior art.

[0005] To achieve the above purpose, the present utility model provides the following technical solutions:

[0006] A paint spraying device for processing door frames, comprising a paint spraying box. At the center of one side of the bottom end of the inner wall of the paint spraying box, a first moving groove is opened. A first driving component is arranged in the first moving groove. A rotating and transposing component is arranged on the first moving groove. The first driving component is used to drive the rotating and transposing component to move. A fixed limiting component is arranged on the side of the rotating and transposing component away from the paint spraying box. The fixed limiting component is used to fix and limit the door frame. An annular second moving groove is opened on one side of the top end of the inner wall of the paint spraying box. A second driving component is arranged in the second moving groove. A rotating and stirring component is arranged on the second moving groove. The second driving component is used to drive the rotating and stirring component to move.

[0007] Preferably, glass side plates are embedded and installed on one side of both ends of the paint spraying box, and side plates are fixedly connected to the other side of both ends of the paint spraying box.

[0008] Preferably, a partition plate is fixedly connected between the side plates, and the partition plate is arranged on the side close to the glass side plate.

[0009] Preferably, the rotating and transposing component includes a receiving column arranged in the first moving groove. A first motor is installed in the receiving column. The output end of the first motor is fixedly connected with a driving rod. The top end of the driving rod is fixedly connected with a connecting block. The top end of the connecting block is fixedly connected with a second motor. The output end of the second motor is fixedly connected with a first rotating rod.

[0010] Preferably, the fixed limiting component includes a first connecting plate and a limiting plate. One side of the limiting plate is detachably connected to the first rotating rod. Clamping plates are fixedly connected to both sides of one end of the first connecting plate. A clamping component is arranged on the clamping plate and is used to limit the clamping plate. An adjusting component is arranged on the first connecting plate and the clamping plate and is used to adjust the clamping component. A receiving groove adapted to the clamping plate is opened at the position of the limiting plate corresponding to the clamping plate. A plurality of limiting rods are slidably connected to the opposite ends of the first connecting plate and the limiting plate. Sliding grooves are opened at the positions corresponding to the limiting rods in the first connecting plate and the limiting plate. Moving plates are fixedly connected to the ends of the limiting rods close to the sliding grooves. Springs are fixedly connected between the moving plates and the inner walls of the sliding grooves.

[0011] Preferably, an access groove is opened on the side of the side plate away from the glass side plate. The height of the access groove is the same as the height of the fixed limiting component, and the width of the access groove is greater than the width of the limiting plate. An isolation groove is opened on the partition plate corresponding to the height of the fixed limiting component, and the width and length of the isolation groove are both greater than the fixed limiting component.

[0012] Preferably, the rotating and stirring assembly includes a stirring box, a third motor is installed at the top end of the inner wall of the stirring box, the output end of the third motor is fixedly connected to a second rotating rod, the second rotating rod penetrates through the bottom end of the inner wall of the stirring box and extends outside the stirring box to be fixedly connected to a storage infusion box, and a plurality of stirring rods are symmetrically and equidistantly fixedly connected to both sides of the second rotating rod inside the stirring box.

[0013] Preferably, a partition plate fixedly connected to the inner wall of the stirring box is arranged below the third motor, liquid inlet grooves are symmetrically formed at positions of the second rotating rod close to the bottom end of the inner wall of the stirring box, and the second rotating rod is communicated with the inside of the storage infusion box.

[0014] Preferably, two second connecting plates are fixedly connected to the bottom end of the storage infusion box, the two second connecting plates are symmetrically arranged at the bottom end of the storage infusion box, bearing plates are fixedly connected to the bottoms of the two ends of the second connecting plates away from each other, spray nozzles are obliquely arranged on the bearing plates, and an infusion hose is connected between one end of each spray nozzle and the storage infusion box.

[0015] Preferably, the distance between the bottoms of the spray nozzles is greater than the width of the limiting plate, and the spray nozzles are arranged above the limiting plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] (1) In the utility model, by installing the fixed limiting component with the door frame on the first rotating rod, the first motor in the receiving column rotates to drive the fixed limiting component to pass through the entry slot and enter the paint spraying box, the first driving component drives the receiving column to move, so as to drive the fixed limiting component to pass through the isolation slot on the isolation plate. When the fixed limiting component moves to the designated position, the second driving component drives the stirring box to move, the third motor rotates to drive the second rotating rod to rotate, so as to drive the spray nozzles below the storage infusion box to rotate, and the spray nozzles spray paint on the door frame in the fixed limiting component in a rotating manner. When the top of the door frame is painted, the second driving component, the third motor and the spray nozzles stop working, the second motor rotates to drive the fixed limiting component to turn over, and the second driving component, the third motor and the spray nozzles work, thereby realizing all-round, fast and meticulous paint spraying on the door frame, improving the paint spraying efficiency of the door frame, and having high practicability. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a paint spraying device for door frame processing;

[0019] Figure 2 It is a sectional structural schematic diagram of the fixed limiting component;

[0020] Figure 3 It is a disassembled three-dimensional structural schematic diagram of a paint spraying device for door frame processing;

[0021] Figure 4 is Figure 3 A magnified structural schematic diagram at position A in

[0022] Figure 5 is Figure 3 A magnified structural schematic diagram at position B in

[0023] Figure 6 A cross-sectional structural schematic diagram of the mixing tank;

[0024] Figure 7 A three-dimensional structural schematic diagram of the second rotating rod.

[0025] In the figure: 1, paint spraying box; 101, glass side plate; 102, side plate; 2, rotating and transposing assembly; 201, receiving column; 202, driving rod; 203, connecting block; 204, second motor; 205, first rotating rod; 3, first driving assembly; 4, fixed limiting assembly; 41, first connecting plate; 42, limiting plate; 43, clamping plate; 431, clamping assembly; 44, limiting rod; 45, moving plate; 46, spring; 5, entry groove; 6, isolation plate; 7, rotating and stirring assembly; 71, mixing tank; 72, third motor; 73, second rotating rod; 74, stirring rod; 75, storage infusion box; 8, second connecting plate; 9, object bearing plate; 10, spray head; 11, partition plate; 12, liquid inlet groove. Specific embodiments

[0026] 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 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.

[0027] Embodiment:

[0028] Please refer to Figures 1-7 , this embodiment provides a paint spraying device for door frame processing, including a paint spraying box 1. A first moving groove is provided at the center of one side of the bottom end of the inner wall of the paint spraying box 1. A first driving assembly 3 is arranged in the first moving groove. A rotating and transposing assembly 2 is arranged on the first moving groove. The first driving assembly 3 is used to drive the rotating and transposing assembly 2 to move. A fixed limiting assembly 4 is arranged on the side of the rotating and transposing assembly 2 away from the paint spraying box 1. The fixed limiting assembly 4 is used to fix and limit the door frame. A second moving groove arranged in a ring shape is provided at one side of the top end of the inner wall of the paint spraying box 1. A second driving assembly is arranged in the second moving groove. A rotating and stirring assembly 7 is arranged on the second moving groove. The second driving assembly is used to drive the rotating and stirring assembly 7 to move. The first driving assembly 3 and the second driving assembly are prior arts and will not be elaborated here.

[0029] In this embodiment, as Figure 1 and Figure 3 shown, glass side plates 101 are embedded and installed on one side at both ends of the paint spraying box 1. The glass side plates 101 are used for staff to observe the paint spraying situation of the door frame and adjust the machine in time. Such a design improves the finished product rate of the door frame paint spraying. On the other side at both ends of the paint spraying box 1, side plates 102 are fixedly connected.

[0030] In this embodiment, as Figure 3 shown, a partition plate 6 is fixedly connected between the side plates 102. The partition plate 6 is arranged on the side close to the glass side plate 101. The partition plate 6 can prevent the liquid from entering the outside during paint spraying and affecting the health of the staff.

[0031] In this embodiment, as Figure 1 、 Figure 3 and Figure 4 shown, the rotation and transposition assembly 2 includes a receiving column 201. The receiving column 201 is arranged in the first moving groove. A first motor is installed in the receiving column 201. The output end of the first motor is fixedly connected with a driving rod 202. The top end of the driving rod 202 is fixedly connected with a connecting block 203. The top end of the connecting block 203 is fixedly connected with a second motor 204. The output end of the second motor 204 is fixedly connected with a first rotating rod 205. When spraying paint on the door frame, first install the door frame in the fixed limiting assembly 4, and then the first motor in the receiving column 201 rotates to drive the driving rod 202 to rotate, drive the connecting block 203 to rotate, thereby drive the second motor 204 to rotate, so as to drive the fixed limiting assembly 4 on the first rotating rod 205 to move. By rotating the second motor 204, the fixed limiting assembly 4 can be driven to rotate, thus realizing automatic turning of the door frame. The structure is simple and the degree of automation is high.

[0032] In this embodiment, as Figure 1 、 Figure 2 and Figure 3As shown in the figure, the fixed limit component 4 includes a first connecting plate 41 and a limit plate 42. One side of the limit plate 42 is detachably connected to the first rotating rod 205. Both sides of one end of the first connecting plate 41 are fixedly connected with clamping plates 43. A clamping component 431 is arranged on the clamping plate 43, and the clamping component 431 is used to limit the clamping plate 43. An adjusting component is arranged on the first connecting plate 41 and the clamping plate 43, and the adjusting component is used to adjust the clamping component 431. The limit plate 42 is provided with a receiving groove adapted to the clamping plate 43 at the corresponding position. A plurality of limit rods 44 are slidably connected to the opposite ends of the first connecting plate 41 and the limit plate 42. Sliding grooves are arranged in the first connecting plate 41 and the limit plate 42 corresponding to the limit rods 44. Moving plates 45 are fixedly connected to the ends of the limit rods 44 close to the sliding grooves. Springs 46 are fixedly connected between the moving plates 45 and the inner walls of the sliding grooves. When limiting and fixing the door frame, by moving the adjusting component, the clamping component 431 is retracted into the clamping plate 43, and then the first connecting plate 41 is removed. The door frame is placed in the middle of the limit plate 42, and then the recess of the door frame is clamped on the limit rods 44. Then the clamping plate 43 is inserted into the limit plate 42, and the limit rods 44 on the first connecting plate 41 are clamped into the recess of the door frame. Then the adjusting component is moved to make the clamping component 431 on the clamping plate 43 snap into the receiving groove and be stably connected to the limit plate 42. The limit rods 44 are pushed by the springs 46 to limit the door frame and prevent it from shifting during painting. The clamping component 431 and the adjusting component are both prior arts and will not be elaborated here.

[0033] In this embodiment, as Figure 1 and Figure 3 shown, an access groove 5 is provided on the side of the side plate 102 away from the glass side plate 101. The height of the access groove 5 is the same as the height of the fixed limit component 4, and the width of the access groove 5 is greater than the width of the limit plate 42. The isolation plate 6 is provided with an isolation groove corresponding to the height of the fixed limit component 4. The width and length of the isolation groove are both greater than the fixed limit component 4. When painting the door frame, the first motor in the receiving column 201 rotates to drive the fixed limit component 4 to pass through the access groove 5 and enter the painting box 1, and then the first driving component 3 drives the fixed limit component 4 to pass through the isolation groove, thus realizing the automatic transfer of the door frame, avoiding manual operation, saving manpower, and improving the painting efficiency of the door frame.

[0034] In this embodiment, as Figure 3 、 Figure 5 and Figure 6As shown in the figure, the rotating stirring assembly 7 includes a stirring box 71. At the top end of the inner wall of the stirring box 71, a third motor 72 is installed. The output end of the third motor 72 is fixedly connected to a second rotating rod 73. The second rotating rod 73 penetrates through the bottom end of the inner wall of the stirring box 71 and extends outside the stirring box 71 to be fixedly connected to a storage infusion box 75. On both sides of the second rotating rod 73 inside the stirring box 71, a plurality of stirring rods 74 are symmetrically and equidistantly fixedly connected. When the third motor 72 works, it drives the second rotating rod 73 to rotate, drives the plurality of stirring rods 74 to rotate, and drives the storage infusion box 75 to rotate. In this way, the paint in the stirring box 71 is stirred evenly, making the spraying effect more ideal.

[0035] In this embodiment, as Figure 6 and Figure 7 shown, below the third motor 72, a partition plate 11 fixedly connected to the inner wall of the stirring box 71 is provided. The partition plate 11 can isolate the liquid in the stirring box 71 to prevent the paint from entering the third motor 72 and causing damage to the third motor 72. At symmetrical positions near the bottom end of the inner wall of the stirring box 71 of the second rotating rod 73, liquid inlet grooves 12 are provided. The second rotating rod 73 is internally connected to the storage infusion box 75. Such a structural design enables the paint to conveniently enter the storage infusion box 75, and the practical effect is good.

[0036] In this embodiment, as Figure 3 and Figure 5 shown, at the bottom end of the storage infusion box 75, two second connecting plates 8 are fixedly connected. The two second connecting plates 8 are symmetrically arranged at the bottom end of the storage infusion box 75. At the bottom of the mutually remote ends of the two second connecting plates 8, bearing plates 9 are fixedly connected. Spray heads 10 are inclined on the bearing plates 9. One end of each spray head 10 is connected to the storage infusion box 75 through an infusion hose, enabling the paint to enter the spray heads 10 through the storage infusion box 75. When the third motor 72 rotates, it drives the storage infusion box 75 to rotate, drives the second connecting plates 8 and the bearing plates 9 to rotate, and thus drives the spray heads 10 to rotate. In this way, the door frame is rotationally sprayed, improving the spraying efficiency of the door frame, and the practical effect is good.

[0037] In this embodiment, as Figure 3 shown, the distance between the bottom ends of the spray heads 10 is greater than the width of the limiting plate 42, and the spray heads 10 are arranged above the limiting plate 42. Such a design scheme facilitates the spraying treatment of the door frame.

[0038] Working principle: When spraying paint on the door frame, by moving the adjustment component, the clamping component 431 retracts into the clamping plate 43, and then the first connecting plate 41 is removed. The door frame is placed in the middle of the limiting plate 42, and then the recess of the door frame is clamped on the limiting rod 44. Then, the clamping plate 43 is inserted into the limiting plate 42, and the limiting rod 44 on the first connecting plate 41 is clamped into the recess of the door frame. Subsequently, the adjustment component is moved so that the clamping component 431 on the clamping plate 43 is clamped into the receiving groove, stably connecting with the limiting plate 42. The door frame is limited by pushing the limiting rod 44 through the spring 46. Then, the first motor in the receiving column 201 rotates to drive the driving rod 202 to rotate, driving the connecting block 203 to rotate, thereby driving the second motor 204 to rotate, and thus driving the fixed limiting component 4 on the first rotating rod 205 to pass through the entry slot 5 into the paint spraying box 1. Then, the first driving component 3 drives the fixed limiting component 4 to pass through the isolation slot. The third motor 72 operates to drive the second rotating rod 73 to rotate, driving a plurality of stirring rods 74 to rotate, and driving the storage infusion box 75 to rotate, driving the second connecting plate 8 and the object-carrying plate 9 to rotate, thereby driving the spray head 10 to rotate. The spray head 10 is driven to move along the perimeter of the door frame through the second driving component, so as to spray paint on the door frame in a rotating manner. When the top of the door frame is sprayed, the second driving component, the third motor 72, and the spray head 10 stop working. The second motor 204 rotates to drive the fixed limiting component 4 to rotate, thereby realizing automatic turning over of the door frame. The second driving component, the third motor 72, and the spray head 10 work, thereby completing the comprehensive spraying of the door frame. In this utility model, by installing the fixed limiting component 4 with the door frame on the first rotating rod 205, the first motor in the receiving column 201 rotates to drive the fixed limiting component 4 to pass through the entry slot 5 into the paint spraying box 1. The first driving component 3 drives the receiving column 201 to move, thereby driving the fixed limiting component 4 to pass through the isolation slot on the isolation plate 6. When the fixed limiting component 4 moves to the designated position, the second driving component drives the mixing tank 71 to move. The third motor 72 rotates to drive the second rotating rod 73 to rotate, thereby driving the spray head 10 below the storage infusion box 75 to rotate. The spray head 10 sprays paint on the door frame in the fixed limiting component 4 in a rotating manner. When the top of the door frame is sprayed, the second driving component, the third motor 72, and the spray head 10 stop working. The second motor 204 rotates to drive the fixed limiting component 4 to turn over. The second driving component, the third motor 72, and the spray head 10 work, thereby realizing all-round, fast, and meticulous spraying of the door frame, improving the efficiency of spraying the door frame, and having high practicability.

[0039] The control mode of this utility model is controlled by the controller of the paint spraying device for door frame processing. The control program of the controller can be realized by simple programming of those skilled in the art, so the control mode and circuit connection of this utility model will not be elaborated in detail.

[0040] The above embodiments are preferred implementation solutions of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. A painting device for door frame processing, comprising a painting box (1), characterized in that: At the center of one side of the bottom end of the inner wall of the paint spraying box (1), a first moving groove is provided. A first driving component (3) is arranged in the first moving groove. A rotating and transposing component (2) is arranged on the first moving groove. The first driving component (3) is used to drive the rotating and transposing component (2) to move. On the side of the rotating and transposing component (2) away from the paint spraying box (1), a fixed limiting component (4) is provided. The fixed limiting component (4) is used to fix and limit the door frame. On one side of the top end of the inner wall of the paint spraying box (1), a second moving groove arranged in a ring shape is provided. A second driving component is arranged in the second moving groove. A rotating and stirring component (7) is arranged on the second moving groove. The second driving component is used to drive the rotating and stirring component (7) to move.

2. The paint spraying device for door frame processing according to claim 1, characterized in that: On one side of each end of the paint spraying box (1), a glass side plate (101) is embedded and installed. On the other side of each end of the paint spraying box (1), a side plate (102) is fixedly connected.

3. The paint spraying device for door frame processing according to claim 2, characterized in that: An isolation plate (6) is fixedly connected between the side plates (102). The isolation plate (6) is arranged on the side close to the glass side plate (101).

4. A paint spraying device for door frame processing according to claim 1, wherein: The rotating and transposing component (2) includes a receiving column (201). The receiving column (201) is arranged in the first moving groove. A first motor is installed in the receiving column (201). The output end of the first motor is fixedly connected with a driving rod (202). The top end of the driving rod (202) is fixedly connected with a connecting block (203). The top end of the connecting block (203) is fixedly connected with a second motor (204). The output end of the second motor (204) is fixedly connected with a first rotating rod (205).

5. The paint spraying device for door frame processing according to claim 3, wherein: The fixed limiting component (4) includes a first connecting plate (41) and a limiting plate (42). One side of the limiting plate (42) is detachably connected to the first rotating rod (205). On both sides of one end of the first connecting plate (41), clamping plates (43) are fixedly connected. A clamping component (431) is arranged on the clamping plate (43). The clamping component (431) is used to limit the clamping plate (43). An adjusting component is arranged on the first connecting plate (41) and the clamping plate (43). The adjusting component is used to adjust the clamping component (431). The limiting plate (42) is provided with a receiving groove adapted to the clamping plate (43) at the corresponding position. A plurality of limiting rods (44) are slidably connected to the opposite ends of the first connecting plate (41) and the limiting plate (42). Sliding grooves are provided at the positions corresponding to the limiting rods (44) in the first connecting plate (41) and the limiting plate (42). One ends of the limiting rods (44) close to the sliding grooves are fixedly connected with moving plates (45). Springs (46) are fixedly connected between the moving plates (45) and the inner walls of the sliding grooves.

6. The paint spraying device for door frame processing according to claim 5, characterized in that: An access groove (5) is formed on the side of the side plate (102) away from the glass side plate (101). The height of the access groove (5) is the same as that of the fixed limiting component (4). The width of the access groove (5) is greater than the width of the limiting plate (42). The isolation plate (6) is provided with an isolation groove corresponding to the height of the fixed limiting component (4). The width and length of the isolation groove are both greater than those of the fixed limiting component (4).

7. A paint spraying device for door frame processing according to claim 1, characterized in that: The rotating stirring component (7) includes a stirring box (71). A third motor (72) is installed at the top end of the inner wall of the stirring box (71). The output end of the third motor (72) is fixedly connected to a second rotating rod (73). The second rotating rod (73) penetrates through the bottom end of the inner wall of the stirring box (71) and extends outside the stirring box (71) and is fixedly connected to a storage infusion box (75). A plurality of stirring rods (74) are symmetrically and equidistantly fixedly connected to both sides of the second rotating rod (73) inside the stirring box (71).

8. A paint spraying device for door frame processing according to claim 7, characterized in that: A partition plate (11) fixedly connected to the inner wall of the stirring box (71) is arranged below the third motor (72). Liquid inlet grooves (12) are symmetrically formed at positions of the second rotating rod (73) close to the bottom end of the inner wall of the stirring box (71). The second rotating rod (73) is communicated with the inside of the storage infusion box (75).

9. The paint spraying device for door frame processing according to claim 8, characterized in that: Two second connecting plates (8) are fixedly connected to the bottom end of the storage infusion box (75). The two second connecting plates (8) are symmetrically arranged at the bottom end of the storage infusion box (75). The bottom ends of the two second connecting plates (8) far away from each other are both fixedly connected with a bearing plate (9). Sprayers (10) are obliquely arranged on the bearing plates (9). An infusion hose is connected between one end of each sprayer (10) and the storage infusion box (75).

10. A paint spraying device for door frame processing according to claim 9, characterized in that: The distance between the bottom ends of the sprayers (10) is greater than the width of the limiting plate (42). The sprayers (10) are arranged above the limiting plate (42).

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