Bottom air draft optimized spraying room structure for spraying keyboard keycaps

Abstract

The invention provides a bottom air draft optimized spraying room structure for spraying keyboard keycaps, and relates to the field of keyboard production and processing equipment.The bottom air draft optimized spraying room structure comprises a spraying room body, a supporting conveying piece, a waste gas filter, a spraying antifouling mechanism and a stable spraying mechanism; the supporting conveying piece is arranged on the inner side of the spraying room body. The waste gas filter is fixedly connected to the outer side of the spraying room body and externally connected with a negative pressure fan. The two first sliding seats are fixedly connected to the left side and the right side of the upper portion of the interior of the spraying room body correspondingly. The second sliding seat is connected above the first sliding seat in a sliding manner; the spraying antifouling mechanism is arranged on the inner side of the spraying room main body; the stable spraying mechanism is arranged below the inner side of the supporting conveying piece, the product yield and batch production stability are greatly improved, and the problems that in the prior art, a long time is needed for dripping into a dirt discharging groove in the bottom, consequently, a lower set of keycaps are prone to being polluted before spraying, and the keyboard machining quality is affected are solved.

Description

Technical Field

[0001] This invention relates to the field of keyboard manufacturing and processing equipment technology, and in particular to a bottom-ventilated optimized spray booth structure for keycap spraying. Background Technology

[0002] In the keyboard manufacturing process, the surface coating of keyboard keycaps is one of the core processes. It is used to achieve effects such as coloring the keycaps, wear resistance protection, and improved feel. Keycap coating operations have extremely high requirements for the cleanliness of the coating environment, paint mist control, and coating uniformity. The spray booth is the core equipment to ensure coating quality.

[0003] The existing publication number CN103008163B discloses a spray booth, including a main body with a door. The main body has a foundation at its base. A machine head moving mechanism is installed inside the main body, and a lifting mechanism is installed on the machine head moving mechanism. A machine head is installed at the lower end of the lifting mechanism. The machine head includes a paint cylinder and a connecting sleeve. The paint cylinder is connected to the connecting sleeve, and a servo motor is installed inside the connecting sleeve. A connecting support is installed on the output shaft of the servo motor, a suspension mechanism is installed on the connecting support, a positioning sleeve is installed on the suspension mechanism, a third motor is horizontally installed on the positioning sleeve, and a spray gun is installed on the output shaft of the third motor. A camera device is installed on the spray gun. The spray gun is connected to the paint cylinder through a pipe. It is equipped with a machine head moving mechanism that allows the machine head to move flexibly within the entire horizontal plane inside the spray booth. The spray gun on the machine head can rotate horizontally and vertically, thereby further expanding the spraying range of the machine head.

[0004] However, existing spray booths are generally equipped with support grids. After spraying, the sprayed paint generally has poor fluidity, which makes it easy for it to drip into the drain tank at the bottom for a long time. This can cause the keycaps of the next set of keys to be contaminated before spraying, affecting the processing quality of the keyboard. Summary of the Invention

[0005] In view of this, the present invention provides a bottom-exhaust optimized spray booth structure for keyboard keycap spraying, which enables high-precision automated spraying of the entire range of keyboard keycaps and is suitable for the production needs of keycaps of various specifications. The reciprocating swing-type exhaust structure significantly widens the paint mist suction range and effectively suppresses paint mist rebound and dispersion, reducing poor paint film appearance from the root. At the same time, the purely mechanical linkage clamping structure realizes automatic clamping during conveying and automatic release during spraying, which not only ensures the stability of workpiece conveying but also completely eliminates clamping obstruction of spraying. The follow-up vibrating grid accelerates the guiding and dripping of paint, solving the industry pain point of paint droplet delay and dripping contaminating the workpiece, and significantly improving product yield and batch production stability.

[0006] This invention provides a bottom-exhaust optimized spray booth structure for keycap spraying, specifically including a spray booth body, a supporting conveyor, a drain trough, an exhaust gas filter, a first slide, a second slide, a tray placement slot, a spraying anti-fouling mechanism, and a stabilizing spraying mechanism. The supporting conveyor is located inside the spray booth body; the drain trough is located inside the lower part of the spray booth body; the exhaust gas filter is fixedly connected to the outside of the spray booth body and is connected to a negative pressure fan; two sets of first slides are provided, and the two sets of first slides are fixedly connected to the upper left and right sides inside the spray booth body; the second slide is slidably connected above the first slide; multiple sets of tray placement slots are provided, and the multiple sets of tray placement slots are located inside the supporting conveyor; the spraying anti-fouling mechanism is located inside the spray booth body; the stabilizing spraying mechanism is located inside the lower part of the supporting conveyor.

[0007] Furthermore, the anti-fouling spraying mechanism includes an air extraction drive motor, which is fixedly connected to the left side of the spray booth body.

[0008] Furthermore, the spraying anti-fouling mechanism also includes: an air extraction drive disc, an air extraction drive lever, an air extraction drive groove, and an air extraction drive component; the air extraction drive disc is coaxially and fixedly connected to the right end of the output shaft of the air extraction drive motor; the air extraction drive lever is hinged to the inside left side of the spray booth body; the air extraction drive groove is opened below the inner side of the air extraction drive lever; the air extraction drive component is fixedly connected to the right side of the air extraction drive disc and is located inside the air extraction drive groove.

[0009] Furthermore, the anti-fouling spraying mechanism also includes an air extraction head; the air extraction head is fixedly connected above the air extraction drive lever, and the air extraction head is connected to the air inlet pipe of the exhaust gas filter through a pipe.

[0010] Furthermore, the anti-fouling spraying mechanism also includes: a first displacement motor, a third slide, a second displacement motor, and a spraying bracket; two sets of the first displacement motor are provided, with the two sets of first displacement motors fixedly connected to the left and right sides of the second slide respectively, and the output shafts of the two sets of first displacement motors are provided with gear structures, which mesh with the rack structure of the first slide respectively; the third slide is slidably connected to the front of the second slide; the second displacement motor is fixedly connected to the front of the third slide, and the output shaft of the second displacement motor is provided with a gear structure, which meshes with the rack structure of the second slide; multiple sets of spraying brackets are provided, with multiple sets of spraying brackets fixedly connected to the outside of the third slide respectively, and a spray head structure is provided below each set of spraying brackets.

[0011] Furthermore, the stabilizing spraying mechanism includes a supporting grid; the supporting grid is slidably connected above the sewage trough, and the supporting grid has a plurality of water-permeable holes.

[0012] Furthermore, the stable spraying mechanism also includes: a vibration drive groove and a vibration drive component; the vibration drive groove is located in the middle of the support grid and has an S-shaped groove structure; the vibration drive component is fixedly connected to the bottom of the support conveyor and the vibration drive component corresponds to the position of the vibration drive groove.

[0013] Furthermore, the stabilizing spraying mechanism also includes: a stabilizing clamping component, a clamping guide wheel, and a clamping transmission rope; the stabilizing clamping component is provided in two sets, the two sets of stabilizing clamping components are slidably connected to the inner side of the tray placement groove, and the two sets of stabilizing clamping components are arranged opposite to each other; the clamping guide wheel is rotatably connected to the inner side of the supporting conveyor; the clamping transmission rope is wrapped around the outer circumference of the clamping guide wheel, and the left and right ends of the clamping transmission rope are fixedly connected to the stabilizing clamping component respectively.

[0014] Furthermore, the stabilizing spraying mechanism also includes a clamping spring; the clamping spring is fixedly connected to the left side of a set of stabilizing clamping members on the left side, and the left end of the clamping spring is fixedly connected to the supporting conveyor.

[0015] Furthermore, the stabilizing spraying mechanism also includes: a clamping separation groove and a clamping separation block; the clamping separation groove is located below a set of stabilizing clamping components on the right side; the clamping separation block is fixedly connected inside the spray booth body, and the clamping separation block and the clamping separation groove together form a wedge structure. Beneficial effects

[0016] This invention utilizes a spray-coating anti-fouling mechanism. A first displacement motor, in conjunction with a first and second slide block, enables the lateral reciprocating movement of the spray head. Simultaneously, a second displacement motor, in conjunction with a second and third slide block, enables the longitudinal reciprocating movement of the spray head. This mechanism drives multiple spray-coating supports fixed to the outside of the third slide block and the spray heads below them, completing automated reciprocating spraying across the entire range without blind spots within the spray booth. It allows for precise control of the spray head's movement trajectory, operating speed, and spraying range, and can adapt to the full-surface spraying needs of keyboard keycaps with different layouts and specifications. The reciprocating oscillating air extraction structure, which operates synchronously throughout the spraying process, significantly expands the coverage of paint mist extraction compared to traditional fixed air extraction structures. It can dynamically and in real time extract the drifting paint mist and organic waste gas generated during the spraying process, effectively suppressing the rebound, wall retention, and irregular drift of paint mist in the spray booth. This fundamentally avoids the contamination of the keycaps to be sprayed or the paint film that has just been sprayed but has not yet dried, significantly reducing the probability of appearance defects such as dirt spots, pinholes, discolored particles, and runs in the paint film, and greatly improving the yield of finished keyboard keycaps.

[0017] This invention, through the design of a stable spraying mechanism, achieves synchronous closure of two sets of stable clamping components under normal conditions via the synchronous linkage of clamping springs and clamping transmission ropes. This automatically clamps and secures the tooling tray, firmly limiting its position during workpiece transport and completely offsetting the inertial forces generated during transport start-stop and movement. This prevents displacement, slippage, and collisions of the tooling tray and internal keyboard keycaps. The wedge structure, composed of a clamping separation groove and clamping separation blocks, allows for the synchronous automatic separation of the two sets of stable clamping components when the tooling tray reaches the spraying station. This completely releases the tooling tray, providing an unobstructed working space for spraying operations. This fundamentally eliminates problems such as clamp marks, spraying dead angles, missed sprays, and uneven paint film thickness caused by clamping obstructions, ensuring the safety of the keyboard keycaps. The uniformity and integrity of the full-surface spraying of the keycaps significantly improve the product coating yield. Through the cooperation of the vibration drive component and the S-shaped vibration drive groove, the support grid can generate continuous lateral reciprocating micro-vibration. Without the need for an additional vibration drive source, it can effectively break the adhesion of the high thixotropic and low-flow paint used for keyboard spraying, and accelerate the rapid diversion of wet paint adhering to the surface of the support grid to the drain tank below. This completely solves the industry pain point of paint sticking to the grid surface and dripping irregularly. It avoids the contamination of the keycaps to be sprayed or the freshly sprayed but not yet dried paint film by the delayed dripping paint droplets. It significantly reduces the appearance defects such as paint film dirt spots, pinholes, discolored particles, and runs, and further improves the processing quality and batch production stability of keyboard keycaps. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the air extraction drive motor structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the spraying bracket structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the first displacement motor structure of the present invention.

[0024] Figure 5 This is a schematic diagram of the air extraction drive lever structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the vibration drive groove structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the clamping and separating groove structure of the present invention.

[0027] Figure 8 This is a schematic diagram of the stabilizing clamping component structure of the present invention.

[0028] List of reference numerals 1. Spray booth main body; 101. Suction drive motor; 102. Suction drive disc; 103. Suction drive swing arm; 104. Suction drive groove; 105. Suction drive component; 106. Suction head; 107. First displacement motor; 108. Third slide; 109. Second displacement motor; 110. Spraying bracket; 2. Support conveyor component; 201. Support grid; 202. Vibration drive groove; 203. Vibration drive component; 204. Stabilizing clamp; 205. Clamping guide wheel; 206. Clamping transmission rope; 207. Clamping spring; 208. Clamping separation groove; 209. Clamping separation block; 3. Sewage discharge groove; 4. Exhaust gas filter; 5. First slide; 6. Second slide; 7. Tray placement groove. Detailed Implementation Example 1

[0029] Please refer to Figures 1 to 5 As shown: This invention provides a bottom-ventilated optimized spray booth structure for keycap spraying, comprising a spray booth body 1, a support conveyor 2, a drain trough 3, an exhaust gas filter 4, a first slide 5, a second slide 6, a tray placement groove 7, and a spraying anti-fouling mechanism; the support conveyor 2 is disposed on the inner side of the spray booth body 1; the drain trough 3 is located at the lower interior of the spray booth body 1; the exhaust gas filter 4 is fixedly connected to the outer side of the spray booth body 1, and a negative pressure fan is externally connected to the exhaust gas filter 4; two sets of first slides 5 are provided, and the two sets of first slides 5 are fixedly connected to the upper left and right sides of the interior of the spray booth body 1 respectively; the second slide 6 is slidably connected above the first slides 5; multiple sets of tray placement grooves 7 are provided, and the multiple sets of tray placement grooves 7 are respectively located on the inner side of the support conveyor 2; the spraying anti-fouling mechanism is disposed on the inner side of the spray booth body 1.

[0030] The anti-fouling spraying mechanism includes: an air extraction drive motor 101; the air extraction drive motor 101 is fixedly connected to the left side of the spray booth body 1.

[0031] The anti-fouling spraying mechanism also includes: a vacuum drive disc 102, a vacuum drive lever 103, a vacuum drive groove 104, and a vacuum drive component 105; the vacuum drive disc 102 is coaxially fixedly connected to the right end of the output shaft of the vacuum drive motor 101; the vacuum drive lever 103 is hinged to the left side inside the spray booth body 1; the vacuum drive groove 104 is opened on the lower inner side of the vacuum drive lever 103; the vacuum drive component 105 is fixedly connected to the right side of the vacuum drive disc 102, and the vacuum drive component 105 is located on the inner side of the vacuum drive groove 104.

[0032] The anti-fouling spraying mechanism also includes an air extraction head 106; the air extraction head 106 is fixedly connected above the air extraction drive lever 103, and the air extraction head 106 is connected to the air inlet pipe of the exhaust gas filter 4 through a pipe.

[0033] The anti-fouling spraying mechanism also includes: a first displacement motor 107, a third slide block 108, a second displacement motor 109, and a spraying bracket 110. Two sets of the first displacement motor 107 are provided, each fixedly connected to the left and right sides of the second slide block 6. The output shafts of both sets of the first displacement motor 107 are equipped with gear structures, which mesh with the rack structure of the first slide block 5. The third slide block 108 is slidably connected to the front of the second slide block 6. The second displacement motor 109 is fixedly connected to the front of the third slide block 108, and its output shaft is equipped with a gear structure, which meshes with the rack structure of the second slide block 6. Multiple sets of the spraying bracket 110 are provided, each fixedly connected to the outside of the third slide block 108. A spray nozzle structure is provided below each set of spraying brackets 110.

[0034] The specific usage and function of this embodiment: The tooling tray for the keyboard keycaps to be sprayed is placed in multiple tray placement slots 7 opened inside the support conveyor 2. The support conveyor 2 transports the tooling tray to the spraying station inside the spray booth body 1. The spraying operation is started. The first displacement motor 107 operates, driving the second slide 6 to move laterally back to its original position along the two sets of first slides 5 fixed on the upper left and right sides inside the spray booth body 1. At the same time, the second displacement motor 109 operates, driving the third slide 108 slidably connected in front of the second slide 6 to move longitudinally back to its original position. This, in turn, drives multiple sets of spraying brackets 110 fixed on the outside of the third slide 108 and the nozzle structure below them to complete the full-range automated reciprocating spraying in both horizontal and vertical directions within the spray booth body 1. Throughout the spraying operation, the fixed... The exhaust drive motor 101, fixed on the left side of the spray booth body 1, runs continuously, driving the exhaust drive disk 102, which is coaxially fixed on the right end of its output shaft, to rotate synchronously. Through the transmission of the exhaust drive component 105, which is fixed on the right side of the exhaust drive disk 102 and embedded in the exhaust drive groove 104 below the inner side of the exhaust drive swing rod 103, the exhaust drive swing rod 103, which is hinged on the left side inside the spray booth body 1, swings continuously around the hinge point. This in turn drives the exhaust head 106, which is fixed above the exhaust drive swing rod 103, to swing synchronously. The exhaust head 106 is connected to the air inlet pipe of the exhaust gas filter 4, which is fixed on the outside of the spray booth body 1 and connected to an external negative pressure fan, through a pipe. During the swinging process, it continuously sucks up the scattered paint mist and organic waste gas generated by spraying and delivers the airflow containing pollutants to the exhaust gas filter 4 for purification. Example 2

[0035] like Figures 1 to 8 As shown: The present invention provides a bottom-exhaust optimized spray booth structure for keycap spraying. Based on the first embodiment, it also includes a stabilizing spraying mechanism, which is disposed on the inner side below the support conveyor 2.

[0036] The stabilizing spraying mechanism includes a support grid 201; the support grid 201 is slidably connected above the sewage trough 3, and the support grid 201 has a number of water-permeable holes.

[0037] The stable spraying mechanism also includes a vibration drive groove 202 and a vibration drive component 203. The vibration drive groove 202 is located in the middle of the support grid 201 and has an S-shaped groove structure. The vibration drive component 203 is fixedly connected to the bottom of the support conveyor 2 and corresponds to the position of the vibration drive groove 202.

[0038] The stabilizing spraying mechanism also includes: a stabilizing clamp 204, a clamping guide wheel 205, and a clamping transmission rope 206; two sets of stabilizing clamps 204 are provided, and the two sets of stabilizing clamps 204 are slidably connected to the inner side of the tray placement groove 7, and the two sets of stabilizing clamps 204 are arranged opposite to each other; the clamping guide wheel 205 is rotatably connected to the inner side of the supporting conveyor 2; the clamping transmission rope 206 is wrapped around the outer circumference of the clamping guide wheel 205, and the left and right ends of the clamping transmission rope 206 are fixedly connected to the stabilizing clamp 204 respectively.

[0039] The stabilizing spraying mechanism also includes a clamping spring 207; the clamping spring 207 is fixedly connected to the left side of a set of stabilizing clamping members 204 on the left side, and the left end of the clamping spring 207 is fixedly connected to the supporting conveyor member 2.

[0040] The stabilizing spraying mechanism also includes: a clamping separation groove 208 and a clamping separation block 209; the clamping separation groove 208 is located below a set of stabilizing clamping members 204 on the right side; the clamping separation block 209 is fixedly connected inside the spray booth body 1, and the clamping separation block 209 and the clamping separation groove 208 together form a wedge structure.

[0041] The specific usage and function of this embodiment: When the tooling tray carrying the keyboard keycaps is placed into the tray placement slot 7 inside the support conveyor 2, under normal conditions, the return force of the clamping spring 207 pushes the left-side stabilizing clamping member 204 to slide inward along the tray placement slot 7. At the same time, through the synchronous linkage of the clamping transmission rope 206 wrapped around the outer periphery of the clamping guide wheel 205 inside the support conveyor 2, the right-side opposite stabilizing clamping member 204 is driven to slide inward synchronously. The two sets of opposite stabilizing clamping members 204 close synchronously, automatically clamping the tooling tray in the tray placement slot 7, completing the pre-fixation of the workpiece. Subsequently, the support conveyor 2 drives the tooling tray to the spraying station inside the spray booth body 1. During the conveying process, the vibration drive member 203 fixed below the support conveyor 2 moves synchronously and embeds into the support slidably connected above the drain trough 3. Within the S-shaped vibration drive groove 202 in the middle of the grille 201, as the support conveyor 2 continues to feed, the vibration drive 203 moves relative to the S-shaped vibration drive groove 202, thereby causing the support grille 201 to perform continuous transverse reciprocating micro-vibrations. When the support conveyor 2 drives the tooling tray to the position of the clamping separation block 209, the clamping separation block 209 is embedded in the clamping separation groove 208 below the right-side stabilizing clamp 204. Through the wedge structure formed by the two working together, the right-side stabilizing clamp 204 is pushed to slide outward along the tray placement groove 7. At the same time, through the reverse linkage of the clamping transmission rope 206, the left-side stabilizing clamp 204 is pulled to slide outward synchronously and compress the clamping spring 207. The two sets of stabilizing clamps 204 separate synchronously, completely releasing the tooling tray and providing an unobstructed working space for the spraying operation.

[0042] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0043] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0044] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A bottom-ventilated optimized spray booth structure for keycap spraying, characterized in that: The system includes a spray booth body (1), a support conveyor (2), a drain trough (3), an exhaust gas filter (4), a first slide (5), a second slide (6), a tray placement slot (7), a spray anti-fouling mechanism, and a stabilizing spray mechanism. The support conveyor (2) is located inside the spray booth body (1). The drain trough (3) is located inside the lower part of the spray booth body (1). The exhaust gas filter (4) is fixedly connected to the outside of the spray booth body (1) and is connected to a negative pressure fan. There are two sets of first slides (5), which are fixedly connected to the upper left and right sides of the inside of the spray booth body (1). The second slide (6) is slidably connected above the first slide (5). There are multiple sets of tray placement slots (7), which are located inside the support conveyor (2). The spray anti-fouling mechanism is located inside the spray booth body (1). The stabilizing spray mechanism is located below the inside of the support conveyor (2).

2. The bottom-ventilated optimized spray booth structure for keycap spraying as described in claim 1, characterized in that: The anti-fouling spraying mechanism includes: an air extraction drive motor (101); the air extraction drive motor (101) is fixedly connected to the left side of the spray booth body (1).

3. The bottom-exhaust optimized spray booth structure for keycap spraying as described in claim 2, characterized in that: The anti-fouling spraying mechanism also includes: a vacuum drive disk (102), a vacuum drive lever (103), a vacuum drive groove (104), and a vacuum drive component (105); the vacuum drive disk (102) is coaxially fixedly connected to the right end of the output shaft of the vacuum drive motor (101); the vacuum drive lever (103) is hinged to the left side inside the spray booth body (1); the vacuum drive groove (104) is opened on the lower inner side of the vacuum drive lever (103); the vacuum drive component (105) is fixedly connected to the right side of the vacuum drive disk (102), and the vacuum drive component (105) is arranged on the inner side of the vacuum drive groove (104).

4. The bottom-exhaust optimized spray booth structure for keycap spraying as described in claim 3, characterized in that: The anti-fouling spraying mechanism also includes an air extraction head (106); the air extraction head (106) is fixedly connected above the air extraction drive lever (103), and the air extraction head (106) is connected to the air inlet pipe of the exhaust gas filter (4) through a pipe.

5. The bottom-exhaust optimized spray booth structure for keyboard keycap spraying as described in claim 4, characterized in that: The anti-fouling spraying mechanism also includes: a first displacement motor (107), a third slide (108), a second displacement motor (109), and a spraying bracket (110); two sets of the first displacement motor (107) are provided, and the two sets of first displacement motors (107) are respectively fixedly connected to the left and right sides of the second slide (6). The output shafts of the two sets of first displacement motors (107) are provided with gear structures, and the gear structures of the two sets of first displacement motors (107) respectively mesh with the rack structure of the first slide (5); the third slide (108) is slidably connected to the front of the second slide (6); the second displacement motor (109) is fixedly connected to the front of the third slide (108), the output shaft of the second displacement motor (109) is provided with a gear structure, and the gear structure of the second displacement motor (109) meshes with the rack structure of the second slide (6); the spraying bracket (110) is provided in multiple sets, and the multiple sets of spraying brackets (110) are respectively fixedly connected to the outside of the third slide (108), and a spray head structure is provided below each of the multiple sets of spraying brackets (110).

6. The bottom-ventilated optimized spray booth structure for keycap spraying as described in claim 1, characterized in that: The stable spraying mechanism includes a support grid (201); the support grid (201) is slidably connected above the sewage trough (3), and the support grid (201) has a plurality of water-permeable holes.

7. The bottom-exhaust optimized spray booth structure for keycap spraying as described in claim 6, characterized in that: The stable spraying mechanism also includes a vibration drive groove (202) and a vibration drive component (203); the vibration drive groove (202) is located in the middle of the support grid (201), and the vibration drive groove (202) has an S-shaped groove structure; the vibration drive component (203) is fixedly connected to the bottom of the support conveyor (2), and the vibration drive component (203) corresponds to the position of the vibration drive groove (202).

8. The bottom-ventilated optimized spray booth structure for keycap spraying as described in claim 7, characterized in that: The stabilizing spraying mechanism further includes: a stabilizing clamp (204), a clamping guide wheel (205), and a clamping transmission rope (206); the stabilizing clamp (204) is provided in two sets, and the two sets of stabilizing clamps (204) are slidably connected to the inner side of the tray placement groove (7), and the two sets of stabilizing clamps (204) are arranged opposite to each other; the clamping guide wheel (205) is rotatably connected to the inner side of the supporting conveyor (2); the clamping transmission rope (206) is wrapped around the outer circumference of the clamping guide wheel (205), and the left and right ends of the clamping transmission rope (206) are fixedly connected to the stabilizing clamp (204) respectively.

9. The bottom-exhaust optimized spray booth structure for keycap spraying as described in claim 8, characterized in that: The stabilizing spraying mechanism also includes a clamping spring (207); the clamping spring (207) is fixedly connected to the left side of a set of stabilizing clamping members (204) on the left side, and the left end of the clamping spring (207) is fixedly connected to the supporting conveyor (2).

10. The bottom-exhaust optimized spray booth structure for keycap spraying as described in claim 9, characterized in that: The stabilizing spraying mechanism also includes: a clamping separation groove (208) and a clamping separation block (209); the clamping separation groove (208) is located below a set of stabilizing clamping members (204) on the right side; the clamping separation block (209) is fixedly connected to the inside of the spray booth body (1), and the clamping separation block (209) and the clamping separation groove (208) together form a wedge structure.

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