Multi-angle adjustable glue head positioning and micro scraping mechanism

Abstract

The utility model discloses a multi -angle adjustable glue head positioning and trace scraping mechanism relates to the electric -acoustic equipment manufacturing technical field, this multi -angle adjustable glue head positioning and trace scraping mechanism includes: work platform, adjusting support includes first direction adjusting assembly, second direction adjusting assembly and inclination adjusting assembly, and first direction adjusting assembly sets up in work platform, and second direction adjusting assembly is connected with first direction adjusting assembly sliding, and inclination adjusting assembly is connected in second direction adjusting assembly sliding, glue -dispensing head, fixedly set up in inclination adjusting assembly, is equipped with glue outlet, scraping assembly includes scraping piece and elastic support piece, and elastic support piece is connected in glue -dispensing head and is connected with scraping piece. The utility model discloses through a plurality of direction adjusting assembly realizes the multi -dimensional accurate positioning of glue -dispensing head, and effectively inhibits overflow and wire drawing through scraping assembly simultaneously, possesses the self -adaptation ability, and is compatible with a variety of different models's product.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic equipment manufacturing technology, and in particular to a multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism. Background Technology

[0002] In the automated production of micro-electroacoustic devices, the adhesive application process for the voice coil frame is one of the key steps. This process requires precisely applying a measured amount of adhesive within extremely small grooves in the frame to achieve coil fixation and insulation protection. Too much adhesive can easily lead to overflow, stringing, and coil contamination, affecting subsequent assembly; too little adhesive will fail to guarantee bonding strength, affecting product reliability. Therefore, extremely high requirements are placed on the positional accuracy, amount control, and uniformity of adhesive application.

[0003] Currently, the industry commonly uses fixed dispensing heads combined with air pressure or screw metering for glue application. This traditional solution has significant drawbacks, such as the inability to adjust the dispensing head position according to the actual height deviation of the voice coil frame, resulting in glue accumulation or uneven coating; or the difficulty in adapting to the frame size, groove depth, and glue type corresponding to different voice coil products. Existing equipment often requires replacing the entire dispensing head or readjusting the overall machine parameters, resulting in long adjustment cycles, low changeover efficiency, and difficulty in meeting the production needs of a wide variety of electroacoustic devices.

[0004] Therefore, there is an urgent need for a glue head positioning and scraping mechanism that can adapt to different product specifications while ensuring high-precision dispensing, thereby improving glue application consistency and production yield. Utility Model Content

[0005] The main purpose of this invention is to provide a multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism, which aims to solve the problem of difficulty in positioning and scraping glue for voice coils of different sizes in the automated production process of existing micro electroacoustic devices.

[0006] To achieve the above objectives, the present invention proposes a multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism, comprising:

[0007] Work platform;

[0008] An adjustment bracket includes a first direction adjustment component, a second direction adjustment component, and a tilt adjustment component. The first direction adjustment component is fixedly disposed at the top of the work platform and extends along the length direction of the work platform. The second direction adjustment component is slidably connected to the first direction adjustment component and extends along the width direction of the work platform. The tilt adjustment component is slidably connected to one end of the second direction adjustment component.

[0009] A dispensing head is fixedly mounted on the tilt adjustment assembly at one end near the working platform, and the dispensing head at the end near the working platform is also provided with an adhesive outlet;

[0010] The glue scraping assembly includes a glue scraper and an elastic support plate. One end of the elastic support plate is fixedly connected to the side wall of the glue dispensing head near the glue outlet, and the other end of the elastic support plate is fixedly connected to the glue scraper. The glue scraper extends downward.

[0011] Preferably, the first direction adjustment assembly includes a first direction base, a first direction slider, and a first direction fine-tuning screw. The top surface of the first direction base is provided with a first direction guide groove extending along the length direction of the work platform. The first direction slider is slidably connected to the first direction guide groove. The first direction fine-tuning screw is threadedly connected to the side wall of the first direction base, and the end of the first direction fine-tuning screw abuts against the end face of the first direction slider.

[0012] Preferably, the second direction adjustment component includes a second direction platform, a second direction slider, and a second direction fine-tuning screw. The second direction platform is disposed at the top of the first direction slider. The top surface of the second direction platform has a second direction guide groove extending along the width direction of the working platform. The second direction slider is slidably connected to the second direction guide groove. The second direction fine-tuning screw is threadedly connected to the side wall of the second direction platform. The end of the second direction fine-tuning screw abuts against the end face of the second direction slider.

[0013] Preferably, the tilt adjustment assembly includes a rotating platform and a tilt locking screw. The rotating platform is hinged to the top of the second direction slider via a rotating shaft. One end of the rotating platform is provided with a waist-shaped hole. The tilt locking screw passes through the waist-shaped hole and is threaded to the top surface of the rotating platform.

[0014] Preferably, the elastic support sheet is a U-shaped spring sheet, the opening of the elastic support sheet faces the working platform, and the bottom of the elastic support sheet is fixed to one side of the dispensing head.

[0015] Preferably, the dispensing head is a hollow cylindrical shell, and the dispensing head further includes a check valve, which includes a valve seat and a valve ball. The valve seat is disposed in the cavity of the dispensing head, and a conical hole is formed on the valve seat, and the valve ball is disposed in the conical hole.

[0016] This invention, through a first direction adjustment component, a second direction adjustment component, and a tilt angle adjustment component, can achieve multi-dimensional precise positioning of the dispensing head along the length and width directions of the working platform. This enables the invention to have self-adaptive capabilities, making it compatible with the production of various product models. At the same time, the glue scraping component effectively suppresses glue overflow and stringing, avoiding impact on subsequent production steps, improving product quality, and increasing production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a dispensing head according to an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional structural diagram of a dispensing head according to an embodiment of the present invention.

[0021] Explanation of icon numbers:

[0022] 1000 Multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism 100 Work platform 200 Adjustable bracket 210 First direction adjustment component 211 First direction base 212 First direction slider 213 First direction fine-tuning screw 220 Second direction adjustment component 221 Second Direction Platform 222 Second direction slider 223 Second direction fine-tuning screw 230 Tilt adjustment assembly 231 Rotary platform 232 Tilt lock screw 300 Dispensing head 310 Glue outlet 320 Check valve 321 valve seat 322 Valve ball 400 Glue scraping assembly 410 scraper 420 Elastic support sheet

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. 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] It should be noted that all directional indicators in this embodiment are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0027] like Figures 1-3 As shown, this utility model proposes a multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism 1000, including: a working platform 100; an adjusting bracket 200, the adjusting bracket 200 including a first direction adjusting component 210, a second direction adjusting component 220 and a tilt adjusting component 230, the first direction adjusting component 210 being fixedly disposed at the top of the working platform 100 and extending along the length direction of the working platform 100, the second direction adjusting component 220 being slidably connected to the first direction adjusting component 210 and extending along the width direction of the working platform 100, the tilt adjusting component 230... 30 is slidably connected to one end of the second direction adjustment component 220; dispensing head 300 is fixedly disposed on the tilt adjustment component 230 near one end of the working platform 100, and the dispensing head 300 near one end of the working platform 100 is also provided with a glue outlet 310; scraper assembly 400 includes a scraper blade 410 and an elastic support plate 420, one end of the elastic support plate 420 is fixedly connected to the side wall of the dispensing head 300 near one end of the glue outlet 310, and the other end of the elastic support plate 420 is fixedly connected to the scraper blade 410, and the scraper blade 410 extends downward.

[0028] In this embodiment, the working platform 100 is a rectangular flat plate structure, serving as the mounting base of this utility model. The working platform 100 is fixed on the frame of the automatic dispensing equipment, and the working platform 100 has a clearly defined length direction and width direction.

[0029] Specifically, the first direction adjustment component 210 is fixedly installed along the length direction of the work platform 100, the second direction adjustment component 220 extends along the width direction of the work platform 100, and the second direction adjustment component 220 can slide on the first direction adjustment component 210. The tilt adjustment component 230 is rotatably hinged to the end of the second direction adjustment component 220 away from the first direction adjustment component 210, and is used to support the dispensing head 300 and realize the pitch attitude adjustment of the dispensing head 300.

[0030] Understandably, during operation, the operator adjusts the adhesive scraper 410 until it lightly touches the surface of the voice coil frame. Then, by adjusting the first-direction fine-tuning screw 213 and the second-direction fine-tuning screw 223, the adhesive outlet 310 is aligned with the adhesive application groove on the voice coil frame. The tilt locking screw 232 is adjusted to slightly tilt the tip of the dispensing head 300 downwards, optimizing the adhesive spreading angle. After the adhesive is squeezed out of the outlet 310, the operator immediately uses the adhesive scraper 410 to smooth and trim it, removing excess adhesive and forming a uniform, overflow-free adhesive layer.

[0031] In one embodiment, the first direction adjustment assembly 210 includes a first direction base 211, a first direction slider 212, and a first direction fine-tuning screw 213. The top surface of the first direction base 211 is provided with a first direction guide groove extending along the length direction of the work platform 100. The first direction slider 212 is slidably connected to the first direction guide groove. The first direction fine-tuning screw 213 is threadedly connected to the side wall of the first direction base 211, and the end of the first direction fine-tuning screw 213 abuts against the end face of the first direction slider 212.

[0032] In this embodiment, the first direction base 211 is rigidly fixed to the upper surface of the work platform 100 by four screws. A dovetail-shaped first direction guide groove is formed on its top surface, extending along the length of the work platform 100. The first direction slider 212 is slidably connected to the guide groove, with both sides of the slider 212 tightly fitted to the groove wall, allowing the slider 212 to slide only along the length of the work platform 100. A first direction fine-tuning screw 213 is connected to the side wall of the first direction base 211, passing through the base and abutting against the first direction slider 212.

[0033] In one embodiment, the second direction adjustment component 220 includes a second direction platform 221, a second direction slider 222, and a second direction fine-tuning screw 223. The second direction platform 221 is disposed at the top of the first direction slider 212. The top surface of the second direction platform 221 is provided with a second direction guide groove extending along the width direction of the working platform 100. The second direction slider 222 is slidably connected to the second direction guide groove. The second direction fine-tuning screw 223 is threadedly connected to the side wall of the second direction platform. The end of the second direction fine-tuning screw 223 abuts against the end face of the second direction slider 222.

[0034] In this embodiment, the second direction platform 221 is fixedly installed on the upper surface of the first direction slider 212. The top surface of the second direction platform 221 is provided with a second direction guide groove. The second direction slider 222 is embedded in the second direction guide groove and slidably connected to the second direction platform 221. The second direction fine-tuning screw 223 is threadedly connected to the front side wall of the second direction platform 221. The screw end of the second direction fine-tuning screw 223 abuts against the front end face of the second direction slider 222. By rotating the second direction fine-tuning screw 223, the position of the second direction slider 222 on the second direction platform 221 can be adjusted.

[0035] In one embodiment, the tilt adjustment assembly 230 includes a rotating platform 231 and a tilt locking screw 232. The rotating platform 231 is hinged to the top of the second direction slider 222 via a pivot. One end of the rotating platform 231 is provided with an oblong hole. The tilt locking screw 232 passes through the oblong hole and is threaded to the top surface of the rotating platform 231.

[0036] In this embodiment, the tilt adjustment assembly 230 is rotatably connected to the top of the second direction slider 222. The rotating platform 231 includes a column, a rotating shaft, and a support platform. The axis of the rotating shaft is perpendicular to the working platform 100. The column is rotatably connected to the second direction slider 222 via the rotating shaft and extends vertically upward. The support platform is fixedly connected to the dispensing head 300. The support platform has an oblong hole. One end of the tilt locking screw 232 passes through the oblong hole and connects to the support platform, allowing the support platform to rotate relative to the top of the column, thereby driving the dispensing head 300 to rotate.

[0037] In one embodiment, the elastic support sheet 420 is a U-shaped spring sheet, the opening of the elastic support sheet 420 faces the work platform 100, and the bottom of the elastic support sheet 420 is fixed to one side of the dispensing head 300.

[0038] In this embodiment, the U-shaped spring opening of the elastic support plate 420 faces the working platform 100, and the bottom of the U-shape is fixed to one end of the dispensing head 300 by screws or welding. The free ends of the two arms of the U-shape of the elastic support plate 420 are fixedly connected to the top end of the scraper 410. The scraper 410 can be a 0.2mm thick stainless steel sheet. The scraper 410 extends downward from the elastic support plate 420 and forms a stepped structure. The scraper 410 has an arc-shaped structure and is positioned at a height lower than the dispensing port 310. Under the elastic force of the elastic support plate 420, the working end of the scraper 410 is always in close contact with the surface of the voice coil skeleton.

[0039] In one embodiment, the dispensing head 300 is a hollow cylindrical shell. The dispensing head 300 also includes a check valve 320, which includes a valve seat 321 and a valve ball 322. The valve seat 321 is disposed in the cavity of the dispensing head 300, and a tapered hole is provided on the valve seat 321. The valve ball 322 is disposed in the tapered hole.

[0040] In this embodiment, the dispensing head 300 is a hollow cylindrical shell, with the hollow cavity serving as the adhesive channel. An adhesive outlet 310 is provided at the end of the dispensing head 300. The dispensing head 300 is fixedly installed on the top of the rotating platform 231 by screws or adhesive bonding. The angle between the dispensing head 300 and the working platform 100 is controlled by the tilt adjustment component 230. A check valve 320 is provided in the internal cavity of the dispensing head 300. The valve seat 321 is fixedly installed within the adhesive channel of the dispensing head 300, and the valve seat 321 has a conical hole, with a valve ball 322 disposed within the conical hole. When the operator stops pressurizing the adhesive supply system, the valve ball 322 falls back into the conical hole under residual pressure, sealing the adhesive channel and preventing adhesive dripping or stringing.

[0041] This utility model is a mechanical structure with a simple structure and low maintenance cost. Furthermore, through a first direction adjustment component, a second direction adjustment component, and a tilt angle adjustment component, it can achieve multi-dimensional precise positioning of the dispensing head along the length and width directions of the working platform. This gives the utility model self-adaptability, compatibility with the production of various product models, and optimization of the dispensing angle based on the frame height or surface condition. This effectively avoids glue accumulation or insufficient coating caused by positional offset or vertical hard pressure. Simultaneously, the glue scraping component effectively suppresses glue overflow and stringing, preventing impact on subsequent production steps, improving product quality, and increasing production efficiency.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism, characterized in that, include: Work platform; An adjustment bracket includes a first direction adjustment component, a second direction adjustment component, and a tilt adjustment component. The first direction adjustment component is fixedly disposed at the top of the work platform and extends along the length direction of the work platform. The second direction adjustment component is slidably connected to the first direction adjustment component and extends along the width direction of the work platform. The tilt adjustment component is slidably connected to one end of the second direction adjustment component. A dispensing head is fixedly mounted on the tilt adjustment assembly at one end near the working platform, and the dispensing head at the end near the working platform is also provided with an adhesive outlet; The glue scraping assembly includes a glue scraper and an elastic support plate. One end of the elastic support plate is fixedly connected to the side wall of the glue dispensing head near the glue outlet, and the other end of the elastic support plate is fixedly connected to the glue scraper. The glue scraper extends downward.

2. The multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism as described in claim 1, characterized in that, The first direction adjustment assembly includes a first direction base, a first direction slider, and a first direction fine-tuning screw. The top surface of the first direction base is provided with a first direction guide groove extending along the length direction of the work platform. The first direction slider is slidably connected to the first direction guide groove. The first direction fine-tuning screw is threadedly connected to the side wall of the first direction base, and the end of the first direction fine-tuning screw abuts against the end face of the first direction slider.

3. The multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism as described in claim 2, characterized in that, The second direction adjustment component includes a second direction platform, a second direction slider, and a second direction fine-tuning screw. The second direction platform is disposed at the top of the first direction slider. The top surface of the second direction platform has a second direction guide groove extending along the width direction of the working platform. The second direction slider is slidably connected to the second direction guide groove. The second direction fine-tuning screw is threadedly connected to the side wall of the second direction platform. The end of the second direction fine-tuning screw abuts against the end face of the second direction slider.

4. The multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism as described in claim 3, characterized in that, The tilt adjustment assembly includes a rotating platform and a tilt locking screw. The rotating platform is hinged to the top of the second direction slider via a rotating shaft. One end of the rotating platform is provided with a waist-shaped hole. The tilt locking screw passes through the waist-shaped hole and is threaded to the top surface of the rotating platform.

5. The multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism as described in claim 1, characterized in that, The elastic support sheet is a U-shaped spring sheet, with its opening facing the working platform, and its bottom fixed to one side of the dispensing head.

6. The multi-angle adjustable glue head positioning and micro-volume glue scraping mechanism as described in claim 1, characterized in that, The dispensing head is a hollow cylindrical shell. The dispensing head also includes a check valve, which includes a valve seat and a valve ball. The valve seat is disposed in the cavity of the dispensing head, and a conical hole is opened on the valve seat. The valve ball is disposed in the conical hole.

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