Plate paint spraying device for piano production

Abstract

The utility model belongs to the field of piano production, and discloses a plate paint spraying device for piano production, which comprises a spraying assembly for lifting and transversely moving paint spraying, and a clamping assembly arranged at the bottom of the spraying assembly and used for limiting and placing a plate and clamping the plate from two sides, a pressing assembly used for pressing a plate downwards is arranged above the clamping assembly. And the clamping assembly comprises a rotating frame, a rotating motor is installed below the rotating frame, a supporting strip is arranged on the rotating frame, and a driving structure is arranged in the rotating frame. According to the plate paint spraying device for piano production, a plate is clamped from the upper side, the lower side and the two sides, the plate is limited and fixed from the four edges, and the plate fixing effect is improved; and through arrangement of a limiting and placing plate, when the plate is placed, the front side and the rear side of the bottom of the plate are limited through two limiting plates, and the plate is conveniently placed on the supporting strips to be clamped.

Description

Technical Field

[0001] This utility model belongs to the field of piano manufacturing, and in particular relates to a piano manufacturing board spraying device. Background Technology

[0002] The piano, hailed as the "King of Instruments," involves multiple precise steps and core technologies in its production process. A piano is mainly divided into four parts: the outer shell, the sound system, the keyboard and action mechanism, and the pedal system. The main material for the piano shell is wood. High-quality wood is the foundation for making a high-quality piano. During the manufacturing process, the selection and processing techniques of the wood are crucial. Manufacturers need to carefully select high-quality wood, such as resonant materials like spruce and paulownia, as well as structural materials like red pine and linden. Through special drying and processing techniques, the stability and durability of the wood are ensured. Finally, paint is sprayed on the surface of the wood to form a protective film, preventing the wood from being corroded by moisture and humidity, thereby extending its service life and improving the overall texture and visual effect of the wood.

[0003] Comparing with Chinese Patent No. CN222132338U, a piano manufacturing board painting device is disclosed, including a spraying table. Support frames are fixedly connected to both sides of the spraying table. A reciprocating assembly is provided on the other side of the spraying table. The reciprocating assembly includes a fixed column. A toothed plate is fixedly connected to the top of the fixed column. A gear meshes with the top of the toothed plate. A connecting rod is movably connected to the middle of the gear via a bearing. A support bracket is fixedly connected to one end of the connecting rod. A sprayer is fixedly connected to the top of the support bracket. A paint spray head is fixedly connected to one end of the sprayer. A semi-I-shaped slider is fixedly connected to one side of the inner wall of the support bracket near the connecting rod. An I-shaped slide rod is slidably connected to the inner wall of the semi-I-shaped slider. One side of the I-shaped slide rod is fixedly connected to one side of the fixed column.

[0004] The aforementioned patent addresses the issue of requiring secondary coating at the clamping area by using suction cups to hold the board in place. However, the thickness of the wood is limited, and the edges of the uncoated wood are not smooth enough, making it difficult for the suction cups to hold the board firmly, resulting in poor fixation. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a piano manufacturing board painting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A piano manufacturing board painting device includes a spraying assembly for lifting and moving the spraying assembly laterally, and a clamping assembly provided at the bottom of the spraying assembly for limiting the placement of the board and clamping the board from both sides. A pressing assembly is provided above the clamping assembly for pressing the board downward.

[0008] The clamping assembly includes a rotating frame, a rotating motor installed below the rotating frame, a support bar provided on the rotating frame, a driving structure provided inside the rotating frame, two clamping plates symmetrically arranged on both sides of the external side of the driving structure, and two limiting plates symmetrically slidably installed on the front and rear sides of the rotating frame.

[0009] The clamping assembly includes a second cylinder, a mounting block is provided at the lower end of the second cylinder, a rotating block is rotatably mounted below the mounting block, a fixing plate is provided below the rotating block, and a pressure plate is provided below the fixing plate.

[0010] Furthermore: the spraying assembly includes a frame, a first cylinder is mounted on the top of the frame, a lifting frame is mounted on the lower end of the first cylinder, the lifting frame is slidably connected to the frame, and a sliding structure is mounted on the front of the lifting frame.

[0011] Furthermore: the drive structure includes a clamping motor, the clamping motor is a double-headed motor, and two lead screws are symmetrically installed at both ends of the clamping motor, and the clamping plate is threadedly connected to the lead screws.

[0012] Furthermore, the contact surfaces of the pressure plate, the clamping plate, and the support strip with the plate are all provided with a silicone buffer layer.

[0013] Furthermore: the sliding structure includes a linear motor, a suspension mounted on the linear motor, a nozzle mounted at the bottom of the suspension, and a feed pipe mounted in front of the nozzle.

[0014] Furthermore: the clamping plate is slidably connected to the support bar, and the rotating frame is rotatably connected to the machine frame.

[0015] Compared with existing technologies, the beneficial effects are:

[0016] 1. By clamping the board from the top, bottom, and sides, the board is limited and fixed from all four sides, which improves the fixing effect of the board.

[0017] 2. By setting up limiting plates, when placing the plate, the two limiting plates limit the front and back sides of the bottom of the plate, making it easier to place the plate on the support bar for clamping.

[0018] 3. By using a downward pressing plate to support the rotation, auxiliary support is provided from above when flipping the board, which improves its stability during the flipping process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a piano manufacturing board painting device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the spraying component of a piano manufacturing board spraying device according to the present invention;

[0021] Figure 3 This is a schematic diagram of the clamping assembly of a piano manufacturing board painting device according to the present invention;

[0022] Figure 4 This is a schematic diagram of the pressing component of a piano manufacturing board painting device according to the present invention.

[0023] In the attached diagram, the following are the reference numerals: 101, frame; 102, first cylinder; 103, lifting frame; 104, linear motor; 105, suspension; 106, nozzle; 107, feed pipe; 201, rotary motor; 202, rotating frame; 203, clamping motor; 204, lead screw; 205, clamping plate; 206, support bar; 207, limiting plate; 301, second cylinder; 302, mounting block; 303, rotating block; 304, fixing plate; 305, pressure plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 A piano manufacturing board painting device includes a spraying assembly for lifting and moving the spraying assembly laterally, and a clamping assembly at the bottom of the spraying assembly for limiting the placement of the board and clamping the board from both sides. A pressing assembly is provided above the clamping assembly for pressing the board downward.

[0026] In this embodiment: the spraying assembly includes a frame 101, a first cylinder 102 is mounted on the top of the frame 101, a lifting frame 103 is mounted on the lower end of the first cylinder 102, the lifting frame 103 is slidably connected to the frame 101, a sliding structure is mounted in front of the lifting frame 103, the sliding structure includes a linear motor 104, a suspension 105 is mounted on the linear motor 104, a nozzle 106 is mounted at the bottom of the suspension 105, and a feed pipe 107 is mounted in front of the nozzle 106. Paint enters the nozzle 106 through the feed pipe 107 and is sprayed out backward. At the same time, the frame 101 supports the extension of the first cylinder 102 to drive the lifting frame 103 to move downward, and the linear motor 104 drives the nozzle 106 to move laterally along the track direction of the linear motor 104 through the suspension 105, thereby spraying the surface of the board.

[0027] In this embodiment: the clamping assembly includes a rotating frame 202, a rotating motor 201 mounted below the rotating frame 202, a support bar 206 mounted on the rotating frame 202, a driving structure inside the rotating frame 202, two clamping plates 205 symmetrically arranged on both sides of the external side of the driving structure, and two limiting plates 207 symmetrically slidably mounted on the front and rear sides of the rotating frame 202. The driving structure includes a clamping motor 203, which is a double-headed motor, with two lead screws 204 symmetrically mounted at both ends of the clamping motor 203. The screw 204 is threadedly connected to the clamping plate 205 and the support bar 206 are slidably connected to each other. The rotating frame 202 is rotatably connected to the frame 101. The plate is placed on the support bar 206 between the two limiting plates 207. Then the rotating frame 202 supports the clamping motor 203 to drive the two screws 204 to rotate, pushing the two clamping plates 205 to move relative to each other and clamping the two sides of the plate. After one side is sprayed, the rotating motor 201 drives the rotating frame 202 to rotate the plate fixed above it to flip it over, so as to spray the other side of the plate.

[0028] In this embodiment: the pressing assembly includes a second cylinder 301, a mounting block 302 is provided at the lower end of the second cylinder 301, a rotating block 303 is rotatably mounted below the mounting block 302, a fixing plate 304 is provided below the rotating block 303, and a pressure plate 305 is provided below the fixing plate 304. The contact surfaces of the pressure plate 305, the clamping plate 205, and the support bar 206 with the plate are all provided with a silicone buffer layer. The second cylinder 301 extends and drives the pressure plate 305 below the fixing plate 304 to move downward through the mounting block 302 and the rotating block 303, pressing the top of the plate under the support of the support bar 206.

[0029] Working principle: In use, the sheet material is placed on the support bar 206 between the two limiting plates 207. Then, the rotating frame 202 supports the clamping motor 203 to drive the two lead screws 204 to rotate, pushing the two clamping plates 205 to move relative to each other, clamping the sides of the sheet material. At the same time, the second cylinder 301 extends and drives the pressure plate 305 under the fixed plate 304 to move downward through the mounting block 302 and the rotating block 303, cooperating with the support bar 206 to press the top of the sheet material, thereby clamping and fixing the sheet material from all four sides. Then, the limiting plate 207 is slid down to the bottom of the sheet material to avoid obstructing it. Finally, the paint enters the spray head 10 through the feed pipe 107. Within 6, the spray is directed backward. Simultaneously, the frame 101 supports the extension of the first cylinder 102, causing the lifting frame 103 to move downward. At the same time, the linear motor 104 drives the nozzle 106 to move laterally along the track of the linear motor 104 via the suspension 105, thereby spraying the surface of the board. After one side is sprayed, the rotating motor 201 drives the rotating frame 202 to rotate the board fixed above it, flipping it over, thereby spraying the other side of the board. During the rotation and flipping process, the pressure plate 305 follows the board, causing the fixed plate 304 and the rotating block 303 to rotate under the support of the mounting block 302, providing auxiliary support for the flipping of the board from above.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piano manufacturing panel painting apparatus, comprising a painting component for lifting and lateral movement for painting, characterized in that: It also includes a clamping assembly at the bottom of the spraying assembly for limiting the placement of the plate and clamping the plate from both sides, and a pressing assembly above the clamping assembly for pressing the plate downward. The clamping assembly includes a rotating frame (202), a rotating motor (201) is installed under the rotating frame (202), a support bar (206) is provided on the rotating frame (202), a driving structure is provided inside the rotating frame (202), two clamping plates (205) are symmetrically arranged on both sides of the external side of the driving structure, and two limiting plates (207) are symmetrically slidably installed on the front and rear sides of the rotating frame (202). The clamping assembly includes a second cylinder (301), a mounting block (302) is provided at the lower end of the second cylinder (301), a rotating block (303) is rotatably mounted below the mounting block (302), a fixing plate (304) is provided below the rotating block (303), and a pressure plate (305) is provided below the fixing plate (304).

2. The piano manufacturing board painting device according to claim 1, characterized in that: The spraying assembly includes a frame (101), a first cylinder (102) is mounted on the top of the frame (101), a lifting frame (103) is mounted on the lower end of the first cylinder (102), the lifting frame (103) is slidably connected to the frame (101), and a sliding structure is mounted on the front of the lifting frame (103).

3. The piano manufacturing board painting device according to claim 1, characterized in that: The driving structure includes a clamping motor (203), which is a double-headed motor. Two lead screws (204) are symmetrically installed at both ends of the clamping motor (203), and the clamping plate (205) is threadedly connected to the lead screws (204).

4. The piano manufacturing board painting device according to claim 1, characterized in that: The contact surfaces of the pressure plate (305), the clamping plate (205), and the support strip (206) with the plate are all provided with a silicone buffer layer.

5. A piano manufacturing board painting device according to claim 2, characterized in that: The sliding structure includes a linear motor (104), a suspension (105) is mounted on the linear motor (104), a nozzle (106) is mounted at the bottom of the suspension (105), and a feed pipe (107) is mounted in front of the nozzle (106).

6. A piano manufacturing board painting device according to claim 2, characterized in that: The clamping plate (205) is slidably connected to the support bar (206), and the rotating frame (202) is rotatably connected to the frame (101).

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