A painting equipment for sofa bed production

Abstract

This invention discloses a painting equipment for sofa bed production, belonging to the technical field of home furnishing painting devices. The proposed solution includes a housing, a support mesh plate fixedly connected to the housing, a movable plate slidably connected to the support mesh plate, a fixed strip fixedly connected to the bottom side of the support mesh plate, a sliding strip slidably connected to the bottom side of the support mesh plate, a collection frame slidably connected to the housing below the support mesh plate, a telescopic guide plate rotatably connected to both the sliding strip and the fixed strip and the collection frame, a drawer plate slidably inserted into the collection frame, a filter paper connected to the drawer plate, and a rotating disk on the housing, with a spray pipe installed on the rotating disk. This invention uses the sliding movable plate to create a space suitable for the size of the sofa bed, reducing the area to be cleaned later. The collection frame is located in the middle of the sliding strip and the fixed strip, thereby creating negative pressure suction directly below the created space to ensure airflow stability. The air is filtered out by the filter paper, and the oil-slinging disk intercepts paint mist in the air for recycling, avoiding waste.

Description

Technical Field

[0001] This invention relates to the field of home furnishing spray painting equipment, and more particularly to a spray painting device for sofa bed production. Background Technology

[0002] Most furniture is made of wood, and in order to extend its lifespan, it needs to be painted using furniture painting equipment during the manufacturing process.

[0003] A search revealed a Chinese invention patent, publication number CN111822193B, entitled "A Spray Painting Device with Limited Angle Anti-Diffusion Function Based on Solid Wood Furniture." This invention solves the problems of not being able to achieve reciprocating motion of the wooden board and limited oscillation of the spray nozzle to improve spraying efficiency and range; and not being able to automatically absorb floating paint particles when the cabinet door is opened.

[0004] However, in actual use, the above and similar technical solutions still have some problems:

[0005] 1. When spray painting is carried out in a fixed space, the adaptability to furniture of different sizes is not good due to the constant volume of the space. During the operation, the paint mist in the air will adhere to the inner wall of the box. The larger the volume of the space, the larger the area of ​​paint mist adhesion, and the subsequent cleaning will require a lot of time and manpower.

[0006] 2. When using the swing spraying method, blind spots will be created during the swing process, resulting in some areas of the furniture not being effectively painted. In addition, in the middle area of ​​the swing, the painting time is relatively concentrated, which can easily cause the paint layer to be too thick, affecting the paint quality and the overall aesthetics of the furniture.

[0007] 3. In the negative pressure paint mist extraction process, if a single-sided extraction method is used, the extraction airflow will be unevenly distributed. This uneven airflow causes the paint mist to shift to one side, increasing the probability that the paint mist will re-adhere to the furniture surface, seriously damaging the uniformity of the paint surface, and thus affecting the quality of furniture painting and the finished product qualification rate. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a painting equipment for sofa bed production that is easy to adapt to furniture of different sizes, has a concentrated extraction area, and provides uniform painting.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A painting equipment for sofa bed production includes a housing, a supporting mechanism connected to the housing, the supporting mechanism including a supporting mesh plate, the supporting mesh plate being fixedly connected to the housing, a movable plate being slidably connected to the supporting mesh plate, and an opening on one side of the housing;

[0011] A collection mechanism is connected to the supporting mesh plate. The collection mechanism includes a fixing strip. The fixing strip is fixedly connected to one end of the bottom side of the supporting mesh plate at the opening of the box. A sliding strip is slidably connected to the bottom side of the supporting mesh plate. The bottom end of the moving plate slides through the supporting mesh plate and is fixedly connected to the sliding strip. A collection frame is slidably connected to the box below the supporting mesh plate. A telescopic guide plate is rotatably connected between the sliding strip and the fixing strip and the collection frame. A second fan is installed at the bottom of the collection frame. The inside of the collection frame is connected to the outside through the second fan.

[0012] A filtering mechanism is connected to the collection frame. The filtering mechanism includes a drawer plate, which is slidably inserted into the collection frame. Filter paper is connected to the drawer plate.

[0013] A painting mechanism is connected to the box body. The painting mechanism includes a fixed frame. The fixed frame is fixedly connected to the top of the box body. A sliding block is slidably connected to the fixed frame. A rotating disk is rotatably connected below the sliding block. A spray pipe is installed on the rotating disk.

[0014] Preferably, a centering mechanism is connected to the collection frame, the centering mechanism includes a fourth gear, both ends of the collection frame are rotatably connected to the fourth gear, both ends of the collection frame are slidably connected to a pair of racks, each pair of racks is respectively meshed with both ends of the fourth gear on the same side, a spring is installed between the racks and the collection frame, and a connecting rod is rotatably connected between the racks and the telescopic guide plate on the same side.

[0015] Preferably, a ramp is installed at the end of the housing near the opening, a closing door is rotatably connected to the opening end of the housing, an air filter is installed at the top of the housing, and a first fan is installed on the top side inside the housing.

[0016] Preferably, a pair of protective plates are fixedly connected to the bottom of the bearing mesh plate, and a second lead screw is rotatably connected between the pair of protective plates at the bottom of the bearing mesh plate. A fourth motor is installed at the bottom of the bearing mesh plate, and the end of the second lead screw is installed on the output shaft of the fourth motor. The second lead screw is threadedly connected to a slide bar, and the slide bar is slidably connected to the protective plates.

[0017] Preferably, a connecting discharge pipe is installed on the side wall of the collection frame, a connecting pipe is installed on the bottom inside the collection frame, the top of the connecting pipe is higher than the installation end of the discharge pipe, and an overhead cap is installed on the top of the connecting pipe, the cap being conical in shape.

[0018] Preferably, a ventilation mesh plate is installed on the drawer, the filter paper is laid on top of the ventilation mesh plate, and the upper surface of the filter paper abuts against the inner wall of the collection frame. A winding roller is provided on both sides of the drawer located on the ventilation mesh plate. A shielding mesh plate is rotatably connected to one side of the box located at the end of the drawer. The two ends of the filter paper are respectively wound onto a pair of winding rollers. A pair of drive discs are rotatably connected to both ends of the drawer. The drive discs are C-shaped, and the winding rollers are inserted into the drive discs. A first motor is installed at one end of the drawer, and a second gear is installed on the output shaft of the first motor. A first gear is installed on one side of one of the drive discs, and the first gear meshes with the second gear.

[0019] Preferably, a collection assembly is connected to the nozzle, the collection assembly includes a vertical frame, the vertical frame is fixedly connected to the outside of the nozzle, the vertical frame is provided with a guide groove, the guide groove has a gourd-shaped structure, multiple oil-slinging discs are installed inside the vertical frame in the guide groove, a collection box is inserted into the bottom of the vertical frame, and the bottom end of the guide groove communicates with the collection box.

[0020] Preferably, a rotary joint is installed on the sliding block, a pair of connected input pipes are installed on the fixed end of the rotary joint, the rotating end of the rotary joint is fixedly connected to the nozzle, a control component is connected to the sliding block, the control component includes an internal gear, a coaxial internal gear is installed on the rotating disk, a third motor is installed on the sliding block, a third gear is installed on the output shaft of the third motor, and the third gear meshes with the internal gear.

[0021] Preferably, a telescopic curtain is installed between both sides of the sliding block and the fixed frame. A first lead screw is rotatably connected to the fixed frame. The first lead screw is threadedly connected to the sliding block. A second motor is installed on the outer wall of the fixed frame. The end of the first lead screw is fixed to the output shaft of the second motor.

[0022] Compared with the prior art, the present invention provides a painting equipment for sofa bed production, which has the following beneficial effects:

[0023] 1. This sofa bed production spray painting equipment uses a drive slide to move a movable plate, creating a space suitable for the size of the sofa bed to avoid wasting space and reduce the area to be cleaned later. When the telescopic guide plate rotates downward, the created space increases, which in turn drives the rack and fourth gear through a connecting rod. The fourth gear drives the racks at both ends to move synchronously, thereby controlling the rotation angle of the pair of telescopic guide plates to be equal. This positions the collection frame in the middle of the slide and the fixed strip, creating negative pressure suction directly below the created space to ensure airflow stability and avoid affecting the spray painting.

[0024] 2. In the negative pressure suction process of this sofa bed production spray painting equipment, the bottom of the connecting pipe is blocked by filter paper. Paint mist and toxic substances will adhere to the filter paper, filtering out the air and discharging it through the shielding mesh to avoid air pollution. When filtering through the filter paper, the first motor is started to drive the filter paper to roll up and release the unused end, so there is no need to replace the filter paper frequently, making it easy to operate.

[0025] 3. The painting equipment used in the production of this sofa bed has a spray nozzle that moves around the sofa bed during painting to achieve uniform painting and avoid excessive thickness caused by repeated painting. During the painting process, a large amount of paint will diffuse into the air. The oil slinger is activated to intercept the paint mist in the air and throw it into the inner wall of the guide channel. Under gravity, it flows into the collection box, thereby achieving collection and recycling and avoiding waste. Attached Figure Description

[0026] Figure 1 This is a perspective view of a painting equipment for sofa bed production proposed in this invention;

[0027] Figure 2 This is a view of the telescopic curtain connection structure of the present invention;

[0028] Figure 3 This is a view of the movable plate connection structure of the present invention;

[0029] Figure 4 This is a view of the fixed frame connection structure of the present invention;

[0030] Figure 5 This is a view of the internal gear connection structure of the present invention;

[0031] Figure 6 This is a view of the frame connection structure of the present invention;

[0032] Figure 7 This is a view of the load-bearing mesh connection structure of the present invention;

[0033] Figure 8 This is a view of the collection frame connection structure of the present invention;

[0034] Figure 9 This is a view of the second lead screw connection structure of the present invention;

[0035] Figure 10 This is a view of the telescopic guide plate connection structure of the present invention;

[0036] Figure 11 This is a view of the first fan connection structure of the present invention;

[0037] Figure 12 This is a view of the top cap connection structure of the present invention;

[0038] Figure 13This is a view of the ventilation mesh panel connection structure of the present invention;

[0039] Figure 14 This is a view of the drive disk connection structure of the present invention.

[0040] In the diagram: 1. Box body; 2. Slope plate; 3. Filtering mechanism; 31. Drawer plate; 32. Rewind roller; 33. Ventilation mesh plate; 34. Filter paper; 35. Drive disc; 36. First motor; 37. First gear; 38. Second gear; 39. Shielding mesh plate; 4. Collection mechanism; 41. Air filter; 42. First fan; 43. Telescopic guide plate; 44. Collection frame; 45. Discharge pipe; 46. Second fan; 47. Sliding strip; 48. Fixing strip; 49. Top cap; 5. Painting mechanism; 51. Input pipe; 52. Fixing frame; 53. Telescopic curtain; 54. Sliding block; 5 5. Control components; 551. Second motor; 552. First lead screw; 553. Third motor; 554. Rotating disk; 555. Internal gear; 556. Third gear; 56. Rotary joint; 57. Collection components; 571. Collection box; 572. Oil slinger; 573. Guide groove; 574. Vertical frame; 58. Spray nozzle; 6. Bearing mechanism; 61. Bearing mesh plate; 62. Moving plate; 63. Fourth motor; 64. Protective plate; 65. Second lead screw; 7. Centering mechanism; 71. Connecting rod; 72. Rack; 73. Spring; 74. Fourth gear; 8. Connecting pipe. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Example 1: Refer to Figures 1-14A painting machine for sofa bed production includes a housing 1, a supporting mechanism 6 connected to the housing 1, the supporting mechanism 6 including a supporting mesh plate 61, the supporting mesh plate 61 fixedly connected to the housing 1, a movable plate 62 slidably connected to the supporting mesh plate 61, an opening on one side of the housing 1, a collecting mechanism 4 connected to the supporting mesh plate 61, the collecting mechanism 4 including a fixing strip 48, a fixing strip 48 fixedly connected to the bottom side of the supporting mesh plate 61 at the opening of the housing 1, a sliding strip 47 slidably connected to the bottom side of the supporting mesh plate 61, and the bottom end of the movable plate 62 slidably penetrating the supporting mesh plate 61. The mesh plate 61 is fixedly connected to the sliding strip 47, so that the size of the enclosed space can be easily adjusted by moving the movable plate 62 to accommodate sofa beds of different lengths. The box body 1 is slidably connected to the collection frame 44 below the supporting mesh plate 61. The sliding strip 47 and the fixed strip 48 are rotatably connected to the collection frame 44 by the telescopic guide plate 43. A second fan 46 is installed at the bottom of the collection frame 44. The inside of the collection frame 44 is connected to the outside through the second fan 46, so that a negative pressure can be formed below the supporting mesh plate 61 to facilitate the collection of paint mist in the air.

[0044] In this invention, a centering mechanism 7 is connected to the collection frame 44. The centering mechanism 7 includes a fourth gear 74. The fourth gear 74 is rotatably connected to both ends of the collection frame 44. A pair of racks 72 are slidably connected to both ends of the collection frame 44. Each pair of racks 72 meshes with the two ends of the fourth gear 74 on the same side. A spring 73 is installed between the racks 72 and the collection frame 44. A connecting rod 71 is rotatably connected between the racks 72 and the telescopic guide plates 43 on the same side, so that the rotation angles of the pair of telescopic guide plates 43 are the same, so that they rotate synchronously, ensuring that the collection frame 44 can be in the middle position between the slide bar 47 and the fixing bar 48, thereby forming a uniform negative pressure.

[0045] In this invention, a ramp 2 is installed at the end of the housing 1 near the opening, and a closed door is rotatably connected to the end of the housing 1 at the opening. An air filter 41 is installed at the top of the housing 1, and a first fan 42 is installed on the top side inside the housing 1, so as to facilitate placing the sofa bed above the supporting mesh plate 61 and to facilitate the introduction of clean air.

[0046] In this invention, a pair of protective plates 64 are fixedly connected to the bottom of the supporting mesh plate 61. A second lead screw 65 is rotatably connected between the pair of protective plates 64 at the bottom of the supporting mesh plate 61. A fourth motor 63 is installed at the bottom of the supporting mesh plate 61. The end of the second lead screw 65 is installed on the output shaft of the fourth motor 63. The second lead screw 65 is threadedly connected to the slide bar 47. The slide bar 47 is slidably connected to the protective plates 64, thereby preventing the second lead screw 65 from being covered with paint and avoiding affecting its operation.

[0047] Example 2: Based on Example 1, a painting equipment for sofa bed production is provided. A filter mechanism 3 is connected to a collection frame 44. The filter mechanism 3 includes a drawer plate 31. The drawer plate 31 is slidably inserted into the collection frame 44. Filter paper 34 is connected to the drawer plate 31. The filter paper 34 is made of glass fiber filter felt, which is randomly interlaced and layered with extremely fine glass fibers (usually with a diameter of a few micrometers to tens of micrometers). A special binder (such as acrylic resin) is added to enhance the structural stability and strength, thereby facilitating the filtration of the extracted paint mist.

[0048] In this invention, a ventilation mesh plate 33 is installed on the drawer plate 31, and filter paper 34 is laid on top of the ventilation mesh plate 33. The upper surface of the filter paper 34 abuts against the inner wall of the collection frame 44. The drawer plate 31 is provided with a winding roller 32 on both sides of the ventilation mesh plate 33. A shielding mesh plate 39 is rotatably connected to one side of the box body 1 at the end of the drawer plate 31. The two ends of the filter paper 34 are respectively wound on a pair of winding rollers 32, which facilitates the driving and release of the filter paper 34.

[0049] In this invention, a pair of drive disks 35 are rotatably connected to both ends of the drawer plate 31. The drive disks 35 are "C" shaped. The take-up roller 32 is inserted into the drive disks 35. A first motor 36 is installed at one end of the drawer plate 31. A second gear 38 is installed on the output shaft of the first motor 36. A first gear 37 is installed on one side of one of the drive disks 35. The first gear 37 meshes with the second gear 38, thereby facilitating the rotation of the take-up roller 32.

[0050] Example 3: Based on Example 2, a painting equipment for sofa bed production is provided. A painting mechanism 5 is connected to the housing 1. The painting mechanism 5 includes a fixed frame 52. The fixed frame 52 is fixedly connected to the top of the inside of the housing 1. A sliding block 54 is slidably connected to the fixed frame 52. A rotating disk 554 is rotatably connected below the sliding block 54. A spray pipe 58 is installed on the rotating disk 554, so as to facilitate the rotation of the spray pipe 58.

[0051] In this invention, a discharge pipe 45 is installed on the side wall of the collection frame 44, and a connecting pipe 8 is installed on the bottom side inside the collection frame 44. The top of the connecting pipe 8 is higher than the installation end of the discharge pipe 45. An overhead cap 49 is installed on the top of the connecting pipe 8. The cap 49 is conical to prevent waste liquid from entering the interior of the connecting pipe 8.

[0052] In this invention, a collection component 57 is connected to the nozzle 58. The collection component 57 includes a frame 574. The frame 574 is fixedly connected to the outside of the nozzle 58. The frame 574 is provided with a guide groove 573. The guide groove 573 has a gourd-shaped structure. Multiple oil-slinging discs 572 are installed inside the frame 574 and the bottom of the frame 574 is inserted into a collection box 571. The bottom end of the guide groove 573 communicates with the collection box 571, thereby collecting the paint mist diffused in the air and avoiding waste.

[0053] In this invention, a rotary joint 56 is installed on the sliding block 54, and a pair of connected input pipes 51 are installed on the fixed end of the rotary joint 56. The rotating end of the rotary joint 56 is fixedly connected to the nozzle 58. A control component 55 is connected to the sliding block 54. The control component 55 includes an internal gear 555. The rotating disk 554 is equipped with a coaxial internal gear 555. A third motor 553 is installed on the sliding block 54. A third gear 556 is installed on the output shaft of the third motor 553. The third gear 556 meshes with the internal gear 555, thereby facilitating the rotation of the rotating disk 554.

[0054] In this invention, telescopic curtains 53 are installed between the sliding block 54 and the fixed frame 52 on both sides to provide protection and prevent paint mist from penetrating. A first lead screw 552 is rotatably connected to the fixed frame 52 and is threadedly connected to the sliding block 54. A second motor 551 is installed on the outer wall of the fixed frame 52, and the end of the first lead screw 552 is fixed to the output shaft of the second motor 551, which facilitates driving the sliding block 54 to move.

[0055] Working principle: The sofa bed is transported to the top of the support mesh plate 61 via the ramp 2. Based on the length of the sofa bed, the fourth motor 63 is controlled to drive the second lead screw 65 to rotate, which in turn drives the slide bar 47 to slide, causing it to move the movable plate 62 to slide, thus creating a space suitable for the size of the sofa bed, avoiding wasted space and reducing the area to be cleaned later. After closing the door, it can be painted. When the slide bar 47 moves, it pushes the telescopic guide plate 43 to extend and rotate. When the telescopic guide plate 43 rotates downwards, the enclosed space increases, which pushes the rack 72 and the fourth gear 74 to rotate via the connecting rod 71. The spring 73 is stretched, and the fourth gear 74 drives the two... The rack 72 at the end moves synchronously, thereby controlling the rotation angle of a pair of telescopic guide plates 43 to be equal, so that the collection frame 44 is located in the middle position between the slide bar 47 and the fixed bar 48. During the painting process, the inside of the box 1 will be filled with paint mist. The air filter 41 is activated to filter the outside air and deliver it through the first fan 42. The second fan 46 works to form a negative pressure above the collection frame 44, thereby drawing away the paint mist above the carrying mesh plate 61, preventing the paint mist from spreading into the air when the box 1 is opened. Through the movement of the collection frame 44 and the moving plate 62, negative pressure is drawn directly below the enclosed space to ensure airflow stability and avoid affecting the painting.

[0056] During the negative pressure suction process, the bottom of the connecting pipe 8 is blocked by the filter paper 34, thereby creating a negative pressure on the back of the filter paper 34. Paint mist and toxic substances will adhere to the filter paper 34, filtering out the air and discharging it through the shielding mesh 39 to avoid air pollution. When filtering through the filter paper 34, the first motor 36 is started, driving the second gear 38 and the first gear 37 to rotate, thereby driving the drive disk 35 to wind up the winding roller 32, thus winding up the used filter paper 34. The winding roller 32 at the other end will release the filter paper 34, so that the filter paper 34 does not need to be replaced frequently. The operation is convenient. Open the shielding mesh 39 and pull out the pull plate 31 to pull the winding roller 32 out of the drive disk 35, and the filter paper 34 can be replaced.

[0057] During spray painting, paint is pumped in from one of the input pipes 51, passes through the rotary joint 56, enters the spray pipe 58, and is sprayed out from the nozzle at the end of the spray pipe 58, thus painting the sofa bed. The second motor 551 is activated, which drives the first lead screw 552 to rotate, thereby driving the sliding block 54 to slide, which in turn moves the spray pipe 58 to achieve horizontal spraying. The third motor 553 is activated, which drives the third gear 556 to rotate, which in turn drives the rotating disk 554 to rotate via the internal gear 555, driving the spray pipe 58 to swing, thus spraying paint onto the end of the sofa bed. During the spraying process, a large amount of paint is diffused into the air. When spraying, the motor is activated... The oil-slinging plate 572 intercepts paint mist in the air and throws it into the inner wall of the guide trough 573. Under gravity, it flows into the collection box 571, thus achieving collection and recycling and avoiding waste. After painting, the box 1 needs to be cleaned. Cleaning agent can be connected to another input pipe 51 and sprayed out through the nozzle to clean the inside of the box 1. The waste liquid passes through the supporting mesh plate 61 and is introduced into the collection frame 44 through the telescopic guide plate 43. Under the action of the top cap 49, the waste liquid is prevented from entering the connecting pipe 8. The protruding end of the connecting pipe 8 can effectively intercept the waste liquid and discharge it through the discharge pipe 45 on one side of the collection frame 44, thus facilitating waste liquid treatment.

[0058] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A painting equipment for sofa bed production, comprising a housing (1), characterized in that: The box (1) is connected to a bearing mechanism (6), the bearing mechanism (6) includes a bearing mesh plate (61), the bearing mesh plate (61) is fixedly connected to the box (1), a moving plate (62) is slidably connected to the bearing mesh plate (61), and the box (1) has an opening on one side; A collection mechanism (4) is connected to the support mesh plate (61). The collection mechanism (4) includes a fixing strip (48). The fixing strip (48) is fixedly connected to one end of the bottom side of the support mesh plate (61) at the opening of the box body (1). A sliding strip (47) is slidably connected to the bottom side of the support mesh plate (61). The bottom end of the moving plate (62) slides through the support mesh plate (61) and is fixedly connected to the sliding strip (47). A collection frame (44) is slidably connected to the box body (1) below the support mesh plate (61). A telescopic guide plate (43) is rotatably connected between the sliding strip (47) and the fixing strip (48) and the collection frame (44). A second fan (46) is installed at the bottom of the collection frame (44). The inside of the collection frame (44) is connected to the outside through the second fan (46). The collection frame (44) is connected to a filter mechanism (3), the filter mechanism (3) includes a drawer plate (31), the drawer plate (31) is slidably inserted into the collection frame (44), and filter paper (34) is connected to the drawer plate (31). The box (1) is connected to a painting mechanism (5). The painting mechanism (5) includes a fixed frame (52). The fixed frame (52) is fixedly connected to the top of the box (1). A sliding block (54) is slidably connected to the fixed frame (52). A rotating disk (554) is rotatably connected below the sliding block (54). A spray pipe (58) is installed on the rotating disk (554). A centering mechanism (7) is connected to the collection frame (44). The centering mechanism (7) includes a fourth gear (74). The fourth gear (74) is rotatably connected to both ends of the collection frame (44). A pair of racks (72) are slidably connected to both ends of the collection frame (44). Each pair of racks (72) meshes with the two ends of the fourth gear (74) on the same side. A spring (73) is installed between the rack (72) and the collection frame (44). A connecting rod (71) is rotatably connected between the rack (72) and the telescopic guide plate (43) on the same side. A pair of protective plates (64) are fixedly connected to the bottom of the bearing mesh plate (61). A second lead screw (65) is rotatably connected between the pair of protective plates (64) at the bottom of the bearing mesh plate (61). A fourth motor (63) is installed at the bottom of the bearing mesh plate (61). The end of the second lead screw (65) is installed on the output shaft of the fourth motor (63). The second lead screw (65) is threadedly connected to the slide bar (47). The slide bar (47) is slidably connected to the protective plate (64).

2. The painting equipment for sofa bed production according to claim 1, characterized in that, The box (1) has a ramp (2) installed at one end near the opening. The box (1) is rotatably connected to the opening end with a closing door. An air filter (41) is installed at the top of the box (1). A first fan (42) is installed on the top side inside the box (1).

3. The painting equipment for sofa bed production according to claim 1, characterized in that, The collection frame (44) has a connecting discharge pipe (45) installed on its side wall. The collection frame (44) has a connecting pipe (8) installed on its bottom side. The top of the connecting pipe (8) is higher than the installation end of the discharge pipe (45). The top of the connecting pipe (8) has an overhead cap (49) installed on its top. The cap (49) is conical.

4. The painting equipment for sofa bed production according to claim 1, characterized in that, A ventilation mesh plate (33) is installed on the drawer plate (31), and the filter paper (34) is laid on the ventilation mesh plate (33). The upper surface of the filter paper (34) abuts against the inner wall of the collection frame (44). The drawer plate (31) is provided with a winding roller (32) on both sides of the ventilation mesh plate (33). The box body (1) is rotatably connected to a shielding mesh plate (39) on one side of the end of the drawer plate (31). The two ends of the filter paper (34) are respectively wound on a pair of winding rollers (32).

5. The painting equipment for sofa bed production according to claim 4, characterized in that, Both ends of the draw plate (31) are rotatably connected to a pair of drive discs (35). The drive discs (35) are "C" shaped. The take-up roller (32) is inserted into the drive discs (35). A first motor (36) is installed at one end of the draw plate (31). A second gear (38) is installed on the output shaft of the first motor (36). A first gear (37) is installed on one side of one of the drive discs (35). The first gear (37) meshes with the second gear (38).

6. The painting equipment for sofa bed production according to claim 1, characterized in that, A collection assembly (57) is connected to the nozzle (58). The collection assembly (57) includes a frame (574). The frame (574) is fixedly connected to the outside of the nozzle (58). The frame (574) is provided with a guide groove (573). The guide groove (573) has a gourd-shaped structure. Multiple oil-slinging discs (572) are installed inside the guide groove (573) of the frame (574). A collection box (571) is inserted into the bottom of the frame (574). The bottom end of the guide groove (573) is connected to the collection box (571).

7. The painting equipment for sofa bed production according to claim 1, characterized in that, A rotary joint (56) is installed on the sliding block (54). A pair of connected input pipes (51) are installed on the fixed end of the rotary joint (56). The rotating end of the rotary joint (56) is fixedly connected to the nozzle (58). A control component (55) is connected to the sliding block (54). The control component (55) includes an internal gear (555). A coaxial internal gear (555) is installed on the rotating disk (554). A third motor (553) is installed on the sliding block (54). A third gear (556) is installed on the output shaft of the third motor (553). The third gear (556) meshes with the internal gear (555).

8. A painting equipment for sofa bed production according to claim 7, characterized in that, Telescopic curtains (53) are installed between the sliding block (54) and the fixed frame (52) on both sides. A first lead screw (552) is rotatably connected to the fixed frame (52). The first lead screw (552) is threadedly connected to the sliding block (54). A second motor (551) is installed on the outer wall of the fixed frame (52). The end of the first lead screw (552) is fixed to the output shaft of the second motor (551).

Images