A drying device for processing musical instruments

By designing a multi-bayonet placement tube and adjustment components, the problem of uneven airflow distribution in musical instrument drying equipment is solved, enabling uniform drying of complex curved surfaces or irregular parts, and improving drying efficiency and quality.

CN224316619UActive Publication Date: 2026-06-02XIANGHE EASTMAN MUSICAL INSTRUMENTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANGHE EASTMAN MUSICAL INSTRUMENTS CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-02

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Abstract

The utility model relates to musical instrument manufacturing and processing field especially, and is particularly to a kind of drying device for processing musical instrument, including drying cabinet and placing pipe, hot blast box is installed in drying cabinet, heating furnace is installed in drying cabinet rear end, heating furnace is connected with air supply pipe, air supply pipe passes through drying cabinet and is communicated with hot blast box inside, several sockets are opened in hot blast box inner side, lateral air inlet is opened in the end of placing pipe, several air outlets are opened in the left and right sides of placing pipe, mounting seat is connected in hot blast box, mounting seat is slidably connected with sealing block, adjusting component for adjusting air intake of air inlet is set in placing pipe. Through the design of multiple sockets and placing pipe, different sizes and shapes of parts can be placed flexibly, achieving the free configuration of parts, each part can be evenly covered by hot air flow, ensuring the uniformity of airflow distribution during drying process, accelerating water evaporation, improving drying efficiency and quality.
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Description

Technical Field

[0001] This utility model relates to the field of musical instrument manufacturing and processing, and in particular to a drying device for processing musical instruments. Background Technology

[0002] Musical instrument manufacturing is a quintessential field combining precision craftsmanship and art, involving the meticulous processing of various materials such as wood, metal, and composites. After processes like cutting, grinding, gluing, and coating, musical instrument parts often retain residual moisture or solvents. If these residues are not thoroughly removed, they can lead to wood warping, metal oxidation, adhesive failure, or paint cracking, severely impacting the instrument's acoustic performance and structural stability. Therefore, the drying process is crucial for ensuring instrument quality, requiring precise and controlled dehydration treatment based on the part's material, geometry, and manufacturing requirements.

[0003] To address the drying needs of musical instrument parts, various specialized equipment has been developed. For example, a drying cabinet for musical instrument processing (publication number CN219553223U) utilizes a multi-layer adjustable shelf and movable support structure to achieve compatible loading of musical instrument parts of different sizes. This equipment employs a hot air circulation principle, injecting hot air through an air inlet on one side of the cabinet and expelling moisture through an air outlet on the opposite side, forming a unidirectional horizontal flow channel. While this design improves space utilization and operational convenience to some extent, its airflow organization pattern has inherent limitations.

[0004] However, the linear airflow path of the aforementioned equipment, with air entering and exiting from only one side, results in a relatively fixed flow area for the drying hot air. When musical instrument parts have complex curved surfaces or irregular shapes, such as the curved back of a violin or the curved tube structure of a saxophone, the airflow is easily guided by the surface morphology of the parts, causing it to flow around or split, resulting in a significant low-speed stagnation zone inside the drying cabinet. In these areas, the hot air velocity decreases significantly, the efficiency of heat transfer and moisture diffusion drops sharply, and moisture evaporation mainly relies on static temperature rise, making it difficult to guarantee drying uniformity and timeliness. Utility Model Content

[0005] To overcome the drawback of uneven airflow distribution, this utility model provides a drying device for processing musical instruments that can regulate airflow.

[0006] A drying device for processing musical instruments includes a drying chamber and a placement tube. A hot air box is installed inside the drying chamber, and a heating furnace is installed at the rear end of the drying chamber. The heating furnace is connected to an air supply pipe, which passes through the drying chamber and communicates with the interior of the hot air box. Several slots are opened inside the hot air box. A lateral air inlet is opened at the end of the placement tube, and several air outlets are opened on the left and right sides of the placement tube. A mounting base is connected inside the hot air box, and a sealing block is slidably connected to the mounting base. A return spring is fitted onto the sealing block, with one end connected to the mounting base and the other end connected to the sealing block. A mating plate is provided within the slots, and the mating plate is slidably connected to the sealing block. A mating component is connected to the placement tube, and the mating plate and the mating component engage in a snap-fit ​​relationship. An adjustment component for adjusting the airflow at the air inlet is provided inside the placement tube.

[0007] Furthermore, the adjustment assembly includes an operating lever, which is rotatably connected to the placement tube. The front end of the operating lever passes through the placement tube, and the rear end of the operating lever is connected to a lead screw, which is rotatably connected to the placement tube. An adjustment plate is slidably connected to the placement tube, and the adjustment plate is sealed to the air inlet. The adjustment plate is threadedly connected to the lead screw.

[0008] Furthermore, it also includes a support plate, with several fixed seats connected to the top of the placement tube, a limiting rod connected to the bottom of the support plate, the limiting rod being slidably connected to the fixed seats, and a filter screen connected to the middle of the support plate.

[0009] Furthermore, it also includes a guide ring, which is connected to the top of the limiting rod, and the top of the guide ring is provided with an inclined surface facing the central axis of the limiting rod.

[0010] Furthermore, an identification card is connected to the front side of the placement tube. The identification card is symmetrical along the operating lever and is used to indicate the correspondence between the rotation direction of the operating lever and the air intake volume of the air inlet.

[0011] Furthermore, handles are connected to both the left and right sides of the support plate.

[0012] Furthermore, several ribbons are connected to the left and right sides of the placement tube, and the ribbons are located at the upper end of the air outlet.

[0013] Furthermore, a limiting plate is connected inside the placement tube, and the rear end of the operating rod is rotatably connected inside the limiting plate, that is, the limiting plate and the adjusting plate are in a limiting fit.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The design of multiple bayonets and placement tubes allows for flexible placement of parts of different sizes and shapes, enabling free configuration of parts. Each part can be covered by a uniform hot airflow, ensuring the uniformity of airflow distribution during the drying process, thereby accelerating moisture evaporation and improving drying efficiency and quality.

[0016] 2. Through the cooperation of the operating lever and the adjustment plate, the operator can precisely control the air intake volume in each placement tube, adjust the intensity and direction of the airflow, and the linkage between the lead screw and the adjustment plate allows the opening of the air inlet to be precisely adjusted, ensuring that the hot airflow can be evenly distributed according to the needs of the parts, thereby avoiding the problem of uneven drying caused by airflow stagnation and diversion, and ultimately improving the timeliness and effect of the drying process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view showing the connection relationship between the heating furnace and the air supply pipe of this utility model.

[0019] Figure 3 This is a schematic diagram of the installation structure of the air duct and operating lever of this utility model.

[0020] Figure 4 This is a schematic diagram of the mounting structure of the mounting base and the return spring of this utility model.

[0021] Figure 5 This is a schematic diagram of the installation structure of the limiting plate and the lead screw of this utility model.

[0022] Figure 6 This is a schematic diagram of the installation structure of the limiting rod and fixing seat of this utility model.

[0023] In the attached diagram, the labels are as follows: 1-Drying box, 2-Hot air box, 3-Heating furnace, 4-Air supply pipe, 5-Bayonet, 6-Placement pipe, 7-Air inlet, 8-Air outlet, 9-Matching plate, 10-Matching piece, 11-Mounting base, 12-Sealing block, 13-Reset spring, 14-Operating lever, 15-Screw rod, 16-Adjusting plate, 17-Fixed base, 18-Support plate, 19-Limiting rod, 20-Guide ring, 21-Identification card, 22-Ribbon, 23-Handle, 24-Limiting plate. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] Example: A drying device for processing musical instruments, such as Figures 1-6As shown, the assembly includes a drying chamber 1, a hot air box 2, a heating furnace 3, an air supply pipe 4, a placement pipe 6, a connecting plate 9, a connecting piece 10, a mounting base 11, a sealing block 12, a return spring 13, and an adjusting assembly. The hot air box 2 is installed inside the drying chamber 1, and the heating furnace 3 is installed at the rear end of the drying chamber 1. The heating furnace 3 is connected to the air supply pipe 4, and the other end of the air supply pipe 4 passes through the side wall of the drying chamber 1 and is sealed and connected to the inner cavity of the hot air box 2. The inner side of the hot air box 2 has fifteen rectangular slots 5 arranged in an array, three in each row. The rear end of the placement pipe 6 has a lateral air inlet 7, and multiple circular air outlets are evenly distributed on both sides of the pipe. The hot air box 2 has an inner wall welded mounting base 11. The axial groove of the mounting base 11 is fitted with a sealing block 12. The sealing block 12 is fitted with a return spring 13. One end of the return spring 13 abuts against the end face of the mounting base 11, and the other end is connected to the sealing block 12. The bayonet 5 has a mating plate 9 embedded in its inner circumference. The mating plate 9 and the sealing block 12 are slidably fitted. The outer wall of the placement tube 6 is fixedly connected to the mating part 10. The distance between the air inlet 7 and the mating part 10 is equal to the thickness of the inner plate of the hot air box 2. The mating plate 9 and the mating part 10 are snapped together. The placement tube 6 is equipped with an adjustment component to adjust the air volume of the air inlet 7.

[0026] like Figures 3-5 As shown, the adjustment assembly includes an operating rod 14, a lead screw 15, and an adjustment plate 16. The operating rod 14, which penetrates the front wall of the placement tube 6, is coaxially and fixedly connected to the lead screw 15 at its rear end. The lead screw 15 is rotatably connected to the placement tube 6 at its rear end. The adjustment plate 16 is slidably connected inside the placement tube 6. The initial position of the adjustment plate 16 completely covers the air inlet 7. The adjustment plate 16 is threadedly connected to the lead screw 15.

[0027] like Figure 1 and Figure 6 As shown, it also includes a fixed seat 17, a support plate 18 and a limiting rod 19. Multiple fixed seats 17 are connected to the top of the placement tube 6. The limiting rod 19 is connected around the bottom of the support plate 18. The limiting rod 19 is fitted with the sleeve of the fixed seat 17 with a clearance. A stainless steel filter screen with different gaps is embedded in the middle of the support plate 18.

[0028] like Figure 6 As shown, it also includes a guide ring 20. The top of the limiting rod 19 is connected to the guide ring 20, and the top of the guide ring 20 is provided with an inclined surface facing the central axis of the limiting rod 19.

[0029] like Figure 3 As shown, it also includes an identification card 21. The identification card 21 is connected to the front side of the placement tube 6. The identification card 21 is symmetrical along the operating lever 14. The identification card 21 is used to indicate the correspondence between the rotation direction of the operating lever 14 and the air intake volume of the air inlet 7.

[0030] like Figure 3 As shown, it also includes ribbons 22. Several ribbons 22 are connected to the left and right sides of the placement tube 6, and each ribbon 22 is located directly above the corresponding air outlet 8.

[0031] like Figure 1 As shown, it also includes a handle 23, which is bolted to both sides of the support plate 18.

[0032] like Figure 5 As shown, it also includes a limiting plate 24. The limiting plate 24 is welded to the inner cavity of the placement tube 6. The bearing hole of the limiting plate 24 is rotatably connected to the rear end of the operating rod 14, and its stop edge is matched with the travel limit of the adjusting plate 16.

[0033] Before starting the drying process, staff first select a suitable placement surface based on the size and shape of the instrument parts. Through precise placement platform configuration, staff ensure that each part has sufficient space for drying. The position of the placement tubes 6 can be adjusted according to the specific needs of the parts. For example, whether each bayonet 5 needs a placement tube 6, whether multiple placement tubes 6 can be connected by a horizontal connecting rod to form a large-gap placement rack, whether a support plate 18 needs to be connected to the top of the placement tubes 6, and the aperture of the filter screen inside the selected support plate 18 are all determined by the required placement platform configuration. This flexible and adjustable design allows staff to freely configure each component according to the size and shape of different parts, thereby maximizing space utilization and ensuring that each part is fully exposed to the hot airflow.

[0034] The installation of the placement tube 6 is the first step in the entire operation process. The staff first inserts one end of the placement tube 6 into the buckle 5 of the hot air box 2, so that the air inlet 7 slides into the hot air box. At this time, the sealing block 12 and the docking plate 9 will slide accordingly and compress the return spring 13. Finally, the docking plate 9 and the docking part 10 are engaged. After the installation is completed, the placement tube 6 is stably fixed and the air inlet 7 is completely located in the hot air box 2, ensuring that the airflow enters the placement tube 6 stably.

[0035] When installing the support plate 18, the worker aligns the limiting rod 19 at the bottom of the support plate 18 with the fixing seat 17 and presses it down. After the limiting rod 19 is smoothly inserted into the fixing seat 17, the support plate 18 is firmly installed on the platform. During this process, the inclined surface of the guide ring 20 guides the limiting rod 19 to be precisely positioned, avoiding jamming, ensuring that the support plate 18 stably supports the components and does not interfere with other operations.

[0036] During disassembly, workers can easily pull the support plate 18 off the platform by holding the handles 23 at both ends. The disassembly process of the placement tube 6 is similar. Workers only need to pull out the placement tube 6 to separate the docking plate 9 from the docking part 10. The return spring 13 will automatically spring back, and the sealing block 12 will re-close the bayonet 5, ensuring the sealing and safety of the entire system.

[0037] During the drying process, staff first select a suitable placement platform and orderly place the instrument parts into the placement tubes 6. Then, the heating furnace 3 is started to begin heating. During heating, staff adjust the airflow in each placement tube 6 by rotating the operating lever 14. Each time the operating lever 14 is rotated, the lead screw 15 drives the adjusting plate 16 to slide within the placement tube 6. The width of the ventilation gap formed between the adjusting plate 16 and the air inlet 7 is proportional to the airflow. The limiting plate 24 blocks the adjustment plate 16 from its displacement limit, preventing it from disengaging from the lead screw 15. This process is clearly indicated by the identification card 21, showing the relationship between the rotation direction of the operating lever 14 and the airflow, allowing staff to intuitively adjust the hot air flow.

[0038] As the air inlet 7 is adjusted, hot air begins to flow into the placement pipe 6, gradually heating and accelerating the evaporation of moisture on the surface of the components. At the same time, the ribbon 22 above the air outlet 8 sways with the wind, and its swing amplitude directly reflects the actual air volume. If the staff finds that the air volume has been adjusted to the maximum but no hot air is seen flowing in, they can immediately check whether the heating furnace 3 is not started or has insufficient power.

[0039] Throughout the drying process, staff continuously monitor the airflow distribution within each placement pipe 6 to ensure that the hot airflow evenly covers each component. Adjusting the airflow path inside the hot air box 2 effectively prevents airflow waste and ensures uniform drying of the component surfaces. After drying, staff rotate the operating lever 14 to close the air inlet 7 and turn off the heating furnace 3. Finally, they open the drying chamber 1 door and remove the dried components. Please check the above text for logical errors, sentence fluency issues, typos, and unclear component references. Please point out any logical errors and grammatical inconsistencies, and provide suggestions for revision.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A drying device for processing musical instruments, characterized in that: The assembly includes a drying box (1) and a placement pipe (6). A hot air box (2) is installed inside the drying box (1). A heating furnace (3) is installed at the rear end of the drying box (1). The heating furnace (3) is connected to an air supply pipe (4), which passes through the drying box (1) and communicates with the interior of the hot air box (2). Several slots (5) are opened inside the hot air box (2). A lateral air inlet (7) is opened at the end of the placement pipe (6). Several air outlets (8) are opened on the left and right sides of the placement pipe (6). A mounting base (11) is connected inside the hot air box (2). A sealing block (12) is slidably connected to the base (11). A return spring (13) is sleeved on the sealing block (12). One end of the return spring (13) is connected to the mounting base (11), and the other end is connected to the sealing block (12). A docking plate (9) is provided in the inner ring of the bayonet (5). The docking plate (9) is slidably connected to the sealing block (12). A docking part (10) is connected to the placement tube (6). The docking plate (9) and the docking part (10) are engaged. An adjustment component for adjusting the air intake volume of the air inlet (7) is provided inside the placement tube (6).

2. The drying device for processing musical instruments according to claim 1, characterized in that: The adjustment assembly includes an operating lever (14), which is rotatably connected to the placement tube (6). The front end of the operating lever (14) passes through the placement tube (6), and the rear end of the operating lever (14) is connected to a lead screw (15). The rear end is rotatably connected to the placement tube (6), and an adjustment plate (16) is slidably connected to the placement tube (6). The adjustment plate (16) is sealed to the air inlet (7), and the adjustment plate (16) is threaded to the lead screw (15).

3. The drying device for processing musical instruments according to claim 1, characterized in that: It also includes a support plate (18), the top of the placement tube (6) is connected to several fixed seats (17), the bottom of the support plate (18) is connected to a limiting rod (19), the limiting rod (19) is slidably connected to the fixed seat (17), and a filter screen is connected to the middle of the support plate (18).

4. The drying device for processing musical instruments according to claim 3, characterized in that: It also includes a guide ring (20), the top of which is connected to the limit rod (19), and the top of the guide ring (20) is provided with an inclined surface facing the central axis of the limit rod (19).

5. A drying device for processing musical instruments according to claim 2, characterized in that: The placement tube (6) is connected to an identification card (21) on the front side. The identification card (21) is symmetrical along the operating rod (14). The identification card (21) is used to indicate the correspondence between the rotation direction of the operating rod (14) and the air intake volume of the air inlet (7).

6. A drying device for processing musical instruments according to claim 3, characterized in that: The support plate (18) is connected to handles (23) on both the left and right sides.

7. The drying device for processing musical instruments according to claim 1, characterized in that: Several ribbons (22) are connected to the left and right sides of the placement tube (6), and the ribbons (22) are located at the upper end of the air outlet (8).

8. A drying device for processing musical instruments according to claim 2, characterized in that: The placement tube (6) is connected to a limiting plate (24), and the rear end of the operating rod (14) is rotatably connected to the limiting plate (24), that is, the limiting plate (24) and the adjusting plate (16) are in a limiting fit.