Pressure regulating device of high-pitched loudspeaker automatic forming machine

Abstract

The utility model relates to a pressure regulating device of high -pitch loudspeaker automatic forming machine, and the utility model relates to electroacoustic device production technical field, two vertical rods are fixedly arranged in the left and right sides of the upper portion of second connecting plate respectively, and the vertical rod is movably arranged on the first connecting plate, the upper portion of second connecting plate is hinged with connecting rod at the front and back positions of vertical rod, four first movable blocks are hinged at the upper end of four connecting rods respectively, a first spring is fixedly arranged on the first movable block, one end of the first spring is fixedly provided with second movable block, the bidirectional screw rod is rotatably arranged in the first connecting plate through the bearing, two moving frames are rotatably arranged on the bidirectional screw rod through the thread, the moving frame is fixedly connected with the second movable block of front and back two sides, not only can thoroughly avoid the spontaneous drift of pressure setting value under the vibration, ensure long -term stability, guarantee the consistency of product quality and the stability of production, but also can consider the quick coarse adjustment and fine adjustment, improve pressure setting efficiency and final accuracy.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic device manufacturing technology, specifically to a pressure regulating device for an automatic high-frequency loudspeaker forming machine. Background Technology

[0002] In the automatic molding process of tweeters, the accuracy and stability of the pressure applied by the die head to the diaphragm and other materials are directly related to the acoustic performance and consistency of the product. Therefore, the pressure regulating device is one of the core components of this type of equipment. Currently, most common mechanical pressure regulating devices use a screw to directly compress a spring. Although this method is simple in structure, its adjustment speed is limited and it is difficult to meet the operational needs of both rapid coarse adjustment and fine fine adjustment. Moreover, the threaded pair is prone to loosening under long-term vibration of the equipment, resulting in pressure drift. Therefore, there is an urgent need for a pressure regulating device for automatic tweeter molding machines. Utility Model Content

[0003] The purpose of this utility model is to address the deficiencies and shortcomings of the existing technology by providing a pressure regulating device for an automatic high-frequency speaker forming machine that is reasonably designed and easy to use, thereby solving the aforementioned defects in the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a first connecting plate and a second connecting plate, the first connecting plate is fixedly mounted on the hydraulic head of the molding machine, the second connecting plate is suspended below the first connecting plate, and a mold head is fixedly mounted at the bottom of the second connecting plate;

[0005] It also includes:

[0006] There are two vertical rods, which are fixedly installed on the left and right sides of the upper part of the second connecting plate, and the vertical rods are movably inserted through the first connecting plate. Connecting rods are hinged to the upper part of the second connecting plate at the front and rear sides of the vertical rods.

[0007] There are four movable blocks, each hinged to the upper end of a connecting rod. The movable blocks are movably disposed in the movable groove at the bottom of the connecting plate. A spring is fixedly disposed on the movable block. A second movable block is fixedly disposed at one end of the spring and is movably disposed in the movable groove.

[0008] A bidirectional lead screw is rotatably mounted inside a first connecting plate via bearings. Two movable frames are rotatably mounted on the bidirectional lead screw via threads. The movable frames are fixedly connected to the second movable blocks on the front and rear sides. An adjustment mechanism connected to the bidirectional lead screw is provided on the first connecting plate.

[0009] As a further improvement of this utility model, the adjusting mechanism includes:

[0010] The worm gear is fixedly sleeved on the double-acting lead screw, and a worm that meshes with the worm gear is rotatably installed in the first connecting plate through a bearing;

[0011] An adjustment frame is movably mounted inside the first connecting plate at the front side of the worm gear. Adjustment rods are inserted into the adjustment frame on both the left and right sides of the worm gear via bearings. The front end of the adjustment rod passes through the first connecting plate and is fixedly mounted with an adjustment handle. The adjustment frame is equipped with a limiting mechanism.

[0012] Gear No. 1 is fixedly sleeved on the adjusting rod on the left side, and Gear No. 2 is fixedly sleeved on the front end of the worm. Gear No. 1 and Gear No. 2 are meshed together, and Gear No. 2 has a larger diameter than Gear No. 1.

[0013] The third gear is fixedly mounted on the adjusting rod on the right side. The second and third gears are meshed together, and the diameter of the third gear is larger than that of the second gear.

[0014] As a further improvement of this utility model, the limiting mechanism includes:

[0015] A connecting block is fixedly installed on the right side wall of the adjusting frame, and the connecting block is movably installed in the adjusting groove opened on the front side wall of the first connecting plate. A second spring is fixedly installed inside the connecting block, and an insertion rod is fixedly installed at one end of the second spring. The insertion rod is movably inserted into the connecting block.

[0016] A pull handle is fixedly installed at the front end of the plug rod. Two limit blocks are fixedly installed on the rear side wall of the pull handle. Three limit slots are opened on the front side wall of the first connecting plate on both the upper and lower sides of the adjustment groove. The limit blocks and limit slots are matched and configured.

[0017] As a further improvement of this utility model, a guide rod is fixedly installed inside the movable groove, and the first movable block, the second movable block, and the first spring are all movably sleeved on the guide rod.

[0018] As a further improvement of this utility model, an abutting block is fixedly provided at the upper end of the vertical rod, and the abutting block abuts against the upper part of the first connecting plate.

[0019] As a further improvement of this utility model, an indicator rod is fixedly installed on the second movable block on the left front side. The indicator rod is movably installed in the strip groove opened on the front side wall of the first connecting plate. A scale line that cooperates with the indicator rod is provided on the front side wall of the first connecting plate at the position below the strip groove.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The pressure adjustment device of the automatic high-frequency speaker forming machine described in this utility model can not only completely avoid the spontaneous drift of the pressure setting value under vibration, ensuring long-term stability and guaranteeing the consistency of product quality and production stability, but also take into account both rapid coarse adjustment and fine fine adjustment, improving the pressure setting efficiency and final accuracy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an exploded view of the parts of the No. 1 connecting plate, connecting rod, No. 1 movable block, No. 1 spring, No. 2 movable block, and movable frame in this utility model.

[0023] Figure 3 This is a cross-sectional view of the No. 1 connecting plate in this utility model.

[0024] Figure 4 for Figure 3 Enlarged view of part A in the image.

[0025] Figure 5 This is an exploded view of the limiting mechanism components in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Connecting plate 1, 2. Connecting plate 2, mold head 3, vertical rod 4, connecting rod 5, 1. Movable block 6, movable groove 7, 1. Spring 8, 2. Movable block 9, double-acting screw 10, moving frame 11, adjusting mechanism 12, worm gear 12-1, worm 12-2, adjusting frame 12-3, adjusting rod 12-4, adjusting handle 12-5, 1. Gear 12-6, 2. Gear 12-7, 3. Gear 12-8, limiting mechanism 13, connecting block 13-1, adjusting groove 13-2, 2. Spring 13-3, insert rod 13-4, pull handle 13-5, limiting block 13-6, limiting groove 13-7, guide rod 14, contact block 15, indicator rod 16, scale line 17. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] like Figures 1-5 As shown, the specific embodiment adopts the following technical solution: it includes a first connecting plate 1 and a second connecting plate 2. The first connecting plate 1 is fixedly installed on the hydraulic head of the molding machine, the second connecting plate 2 is suspended below the first connecting plate 1, and a mold head 3 is fixedly installed at the bottom of the second connecting plate 2.

[0030] It also includes:

[0031] Vertical rod 4, there are two vertical rods 4, which are fixedly installed on the left and right sides of the upper part of the second connecting plate 2 respectively, and the vertical rod 4 is movably inserted through the first connecting plate 1. The upper part of the second connecting plate 2 is hinged to the front and rear sides of the vertical rod 4.

[0032] There are four movable blocks 6, each hinged to the upper end of one of the four connecting rods 5. Each movable block 6 is movably disposed within a movable groove 7 at the bottom of the first connecting plate 1. A first spring 8 is fixedly mounted on each movable block 6. A second movable block 9 is fixedly mounted on one end of the first spring 8 and is movably disposed within the movable groove 7. A guide rod 14 is fixedly mounted within the movable groove 7. Movable blocks 6, 9, and 8 are all movably sleeved on the guide rod 14. The guide rod 14 not only provides linear motion constraints for movable blocks 6 and 9, preventing off-center loading, jamming, or torsion. This ensures linear and smooth pressure transmission, improves the stability of adjustment, and also prevents the No. 1 spring 8 from bending during compression, which would affect its service life. The upper end of the vertical rod 4 is fixedly provided with an abutment block 15, and the abutment block 15 is abutted against the upper part of the No. 1 connecting plate 1. By setting the abutment block 15 at the top of the vertical rod 4, it can contact the No. 1 connecting plate 1 when the device is not working, which can distribute the overall weight of the mold head 3 and the No. 2 connecting plate 2, and prevent the weight of the mold head 3 and the No. 2 connecting plate 2 from being completely borne by the connecting rod 5 and its hinge point for a long time. This reduces the static load and potential deformation of these moving parts, and improves the durability and long-term reliability of the device.

[0033] A bidirectional lead screw 10 is rotatably mounted inside a first connecting plate 1 via bearings. Two movable frames 11 are rotatably mounted on the bidirectional lead screw 10 via threads. The movable frames 11 are fixedly connected to the second movable blocks 9 on the front and rear sides. An adjustment mechanism 12 connected to the bidirectional lead screw 10 is provided on the first connecting plate 1. An indicator rod 16 is fixedly mounted on the second movable block 9 on the left front side. The indicator rod 16 is movably mounted in a strip groove opened on the front side wall of the first connecting plate 1. A scale line 17 that cooperates with the indicator rod 16 is provided on the front side wall of the first connecting plate 1 below the strip groove. Through the cooperation of the indicator rod 16 and the scale line 17, the compression of the first spring 8 can be converted into an intuitive and quantifiable visual reading, which facilitates the precise setting, quick recording and repeated recall of pressure, reduces the dependence on operating experience and ensures the consistency of product pressure parameters.

[0034] The adjustment mechanism 12 includes:

[0035] Worm gear 12-1, the worm gear 12-1 is fixedly sleeved on the bidirectional lead screw 10, and a worm 12-2 that meshes with the worm gear 12-1 is rotatably arranged in the first connecting plate 1 through a bearing;

[0036] Adjustment frame 12-3 is movably mounted in the first connecting plate 1 at the front side of worm gear 12-2. Adjustment rods 12-4 are rotatably inserted into the adjustment frame 12-3 at the left and right sides of worm gear 12-2 via bearings. The front end of the adjustment rod 12-4 passes through the first connecting plate 1 and is fixedly mounted with an adjustment handle 12-5. The adjustment frame 12-3 is provided with a limiting mechanism 13.

[0037] Gear 12-6 is fixedly sleeved on the adjusting rod 12-4 on the left side. Gear 12-7 is fixedly sleeved on the front end of the worm 12-2. Gear 12-6 and gear 12-7 are meshed together. Gear 12-7 has a larger diameter than gear 12-6.

[0038] Gear 12-8 is fixedly mounted on the adjusting rod 12-4 on the right side. Gear 12-7 and gear 12-8 are meshed together. The diameter of gear 12-8 is larger than that of gear 12-7. By setting adjustment gears with different transmission ratios, the device can perform rapid and wide-range coarse pressure adjustment to improve efficiency, and can also be converted to fine adjustment to achieve high-precision pressure setting. It perfectly balances adjustment speed and final accuracy. Moreover, the self-locking characteristics of the worm gear 12-1 and worm 12-2 transmission can also prevent the pressure setting value from changing due to device vibration, ensuring the consistency of product quality and the stability of production.

[0039] The limiting mechanism 13 includes:

[0040] Connecting block 13-1 is fixedly installed on the right side wall of adjusting frame 12-3, and is movably installed in adjusting groove 13-2 opened on the front side wall of connecting plate 1. A second spring 13-3 is fixedly installed in connecting block 13-1, and a plug rod 13-4 is fixedly installed at one end of the second spring 13-3. The plug rod 13-4 is movably inserted into connecting block 13-1.

[0041] Pull handle 13-5 is fixedly installed at the front end of plug rod 13-4. Two limit blocks 13-6 are fixedly installed on the rear side wall of pull handle 13-5. Three limit grooves 13-7 are opened on the front side wall of No. 1 connecting plate 1 on both the upper and lower sides of adjustment groove 13-2. Limit blocks 13-6 are set in cooperation with limit grooves 13-7. Through the limit mechanism 13, clear, stable and reliable mechanical locking can be provided for different adjustment gears, preventing gear slippage caused by accidental contact or equipment vibration during adjustment or operation, and ensuring the stability of adjustment gears and operational safety.

[0042] When using this utility model, if it is necessary to adjust the forming pressure of the die head 3 on the diaphragm, the operator first releases the locking mechanism 13 by pulling the handle 13-5, causing the limiting block 13-6 to disengage from the limiting groove 13-7 and stretch the second spring 13-3. Then, the operator moves the adjusting frame 12-3 laterally, so that the first gear 12-6 or the third gear 12-8 on the left or right adjusting rod 12-4 meshes with the second gear 12-7 at the front end of the worm gear 12-2. The operator selects the fast or slow adjustment gear, and after selection, releases the handle 13-5, causing the second spring 13-3 to reset and shorten, driving the handle 13-5 to move towards the first connecting plate 1, so that the limiting block... Insert 13-6 into the corresponding limiting groove 13-7 to lock the position of the adjusting bracket 12-3. Then rotate the corresponding adjusting handle 12-5. Power is transmitted to the worm gear 12-2 through the meshing of gear 12-6 and gear 22-7 or gear 32-8 and gear 22-7. This drives the worm wheel 12-1 and the double-acting screw 10 to rotate synchronously. The rotation of the double-acting screw 10 drives the two moving brackets 11 on it to move synchronously in opposite directions or back to back, pushing the second movable block 9 connected to it to slide along the guide rod 14. When the first movable block 6 is in its initial position, change the pre-compression of the first spring 8 to set the molding pressure.

[0043] Compared with the prior art, the beneficial effects of this specific embodiment are as follows:

[0044] 1. Through the self-locking characteristic of the transmission between the worm gear 12-1 and the worm 12-2, after the adjustment is completed, vibration or external force cannot drive the worm 12-2 in the reverse direction, thus firmly locking the bidirectional lead screw 10 and the entire pressure setting structure, fundamentally eliminating the spontaneous change of the pressure value.

[0045] 2. By moving the adjustment bracket 12-3, the meshing state of gear 12-7 with gear 12-6 or gear 12-8 can be adjusted. The operator can choose between fast coarse adjustment or fine adjustment mode as needed to improve the adjustment speed while ensuring the final accuracy.

[0046] 3. In the non-working state, the weight of the mold head 3 and the second connecting plate 2 is directly transmitted to the first connecting plate 1 through the vertical rod 4 and the contact block 15, instead of being entirely borne by the connecting rod 5 and its hinge point, which reduces the static load and wear risk of the moving parts.

[0047] 4. By combining the indicator rod 16 and the scale line 17, the compression of the No. 1 spring 8 can be converted into an intuitive and quantifiable visual reading, which facilitates the precise setting, quick recording and repeated recall of pressure, reduces the reliance on operating experience and ensures the consistency of product pressure parameters.

[0048] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure regulating device for an automatic high-frequency horn forming machine, comprising a first connecting plate (1) and a second connecting plate (2), the first connecting plate (1) being fixedly mounted on the hydraulic head of the forming machine, the second connecting plate (2) being suspended below the first connecting plate (1), and a mold head (3) being fixedly mounted at the bottom of the second connecting plate (2). Its features are, It also includes: Vertical rod (4), there are two vertical rods (4), which are fixedly installed on the upper left and right sides of the second connecting plate (2), and the vertical rod (4) is movably inserted on the first connecting plate (1). The upper part of the second connecting plate (2) is connected to the front and rear sides of the vertical rod (4) with connecting rods (5). There are four movable blocks (6) and they are respectively hinged to the upper ends of four connecting rods (5). The movable blocks (6) are movably disposed in the movable groove (7) opened at the bottom of the connecting plate (1). A spring (8) is fixedly disposed on the movable block (6). A second movable block (9) is fixedly disposed at one end of the spring (8). The second movable block (9) is movably disposed in the movable groove (7). A bidirectional lead screw (10) is rotatably mounted in a first connecting plate (1) via a bearing. Two movable frames (11) are rotatably mounted on the bidirectional lead screw (10) via a thread. The movable frames (11) are fixedly connected to the second movable blocks (9) on the front and rear sides. An adjustment mechanism (12) connected to the bidirectional lead screw (10) is provided on the first connecting plate (1).

2. The pressure regulating device for an automatic high-frequency horn forming machine according to claim 1, characterized in that: The adjustment mechanism (12) includes: Worm wheel (12-1), the worm wheel (12-1) is fixedly sleeved on the double-acting screw (10), and a worm (12-2) that meshes with the worm wheel (12-1) is rotatably installed in the first connecting plate (1) through a bearing. An adjusting frame (12-3) is movably mounted in the first connecting plate (1) at the front side of the worm (12-2). Adjusting rods (12-4) are inserted into the adjusting frame (12-3) on both the left and right sides of the worm (12-2) via bearings. The front end of the adjusting rod (12-4) passes through the first connecting plate (1) and is fixedly mounted with an adjusting handle (12-5). A limiting mechanism (13) is provided on the adjusting frame (12-3). Gear No. 1 (12-6) is fixedly sleeved on the adjusting rod (12-4) on the left side. Gear No. 2 (12-7) is fixedly sleeved on the front end of the worm (12-2). Gear No. 1 (12-6) and Gear No. 2 (12-7) are meshed together. The diameter of Gear No. 2 (12-7) is larger than that of Gear No. 1 (12-6). The third gear (12-8) is fixedly sleeved on the adjusting rod (12-4) on the right side. The second gear (12-7) and the third gear (12-8) are meshed together. The diameter of the third gear (12-8) is larger than that of the second gear (12-7).

3. The pressure regulating device for an automatic high-frequency horn forming machine according to claim 2, characterized in that: The limiting mechanism (13) includes: A connecting block (13-1) is fixedly installed on the right side wall of the adjusting frame (12-3), and the connecting block (13-1) is movably installed in the adjusting groove (13-2) opened on the front side wall of the first connecting plate (1). A second spring (13-3) is fixedly installed in the connecting block (13-1), and a plug rod (13-4) is fixedly installed at one end of the second spring (13-3). The plug rod (13-4) is movably inserted into the connecting block (13-1). Pull handle (13-5), the pull handle (13-5) is fixedly installed at the front end of the plug rod (13-4), and two limit blocks (13-6) are fixedly installed on the rear side wall of the pull handle (13-5). Three limit grooves (13-7) are opened on the front side wall of the first connecting plate (1) on both the upper and lower sides of the adjustment groove (13-2). The limit blocks (13-6) are matched with the limit grooves (13-7).

4. The pressure regulating device for an automatic high-frequency horn forming machine according to claim 1, characterized in that: A guide rod (14) is fixedly installed inside the movable groove (7), and the first movable block (6), the second movable block (9) and the first spring (8) are all movably sleeved on the guide rod (14).

5. The pressure regulating device for an automatic high-frequency horn forming machine according to claim 1, characterized in that: The upper end of the vertical rod (4) is fixedly provided with an abutment block (15), and the abutment block (15) is abutted against the upper part of the first connecting plate (1).

6. The pressure regulating device for an automatic high-frequency horn forming machine according to claim 1, characterized in that: An indicator rod (16) is fixedly installed on the second movable block (9) on the left front side. The indicator rod (16) is movably installed in the strip groove opened on the front side wall of the first connecting plate (1). A scale line (17) that cooperates with the indicator rod (16) is provided on the front side wall of the first connecting plate (1) below the strip groove.

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