Sound film body fitting screening machine

By designing a diaphragm and carcass bonding and screening machine, the bonding state of the diaphragm and carcass is automatically screened using a detection rod and displacement sensor, which solves the problem of low screening efficiency after diaphragm molding in the existing technology, and achieves high-efficiency screening and cost reduction.

CN224460022UActive Publication Date: 2026-07-03DONGGUAN PO YUN ELECTRONICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN PO YUN ELECTRONICS
Filing Date
2025-08-13
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies cannot effectively screen the sound diaphragm immediately after molding, resulting in low production efficiency and additional screening equipment costs.

Method used

A diaphragm and carcass bonding and screening machine was designed, comprising a support, a carrier, a bonding device, and a screening device. The bonding state between the diaphragm and the carcass is detected by a detection rod and a displacement sensor, and good products and defective products are distinguished by an alarm mechanism.

Benefits of technology

This technology enables automatic screening during the bonding process of the diaphragm and the carcass, improving production efficiency, reducing the need for additional screening equipment, and lowering production costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224460022U_ABST
    Figure CN224460022U_ABST
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Abstract

The utility model discloses a kind of sound film body adhering screening machines, it includes: support;Carriage, it is installed in support lower part, and the lower die seat is equipped in carriage upper end;Adhering device, it includes lifting frame and is used to drive lifting frame up and down sliding drive module, is installed in lifting frame lower end and is used to cooperate with lower die seat and sound film and body adhering fixed upper die seat;Screening device, it includes with lifting frame fixed connection detection rod and is installed in support lower part and is used to detect the displacement sensor of the detection rod drop height and is used for the alarm mechanism of alarm.In the while of upper die seat and lower die seat compression, the detection rod is contacted with displacement sensor, to detect the detection rod drop height, if the sound film of being put in is two layers or multiple layers, detection rod drop height abnormality will be detected, alarm mechanism sends alarm, to prompt staff that the product is defective, otherwise it is regarded as good product, to improve work efficiency, reduce production cost.
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Description

Technical fields:

[0001] This utility model relates to the field of mechanical processing technology, and specifically to a diaphragm body bonding and screening machine. Background technology:

[0002] The diaphragm is the diaphragm that the loudspeaker reproduces. In horn loudspeakers and dome loudspeakers, for ease of assembly, the dome diaphragm and voice coil are often bonded together to form a single component called the diaphragm.

[0003] Chinese invention patent application No. 202111502506.9 discloses a pneumatic safety diaphragm forming device, which includes a base and a horizontal plate arranged parallel to the base via a column. A cylinder is fixed on the horizontal plate, and the telescopic end of the cylinder passes through the horizontal plate and connects to an extension rod. A detachable stamping die is provided at the end of the extension rod away from the cylinder. The device also includes: a fixed plate fixedly installed on the base and a telescopic plate slidably fitted with the fixed plate. The telescopic plate is provided with stamping holes adapted to the stamping die, and the fixed plate and the telescopic plate are connected by an elastic component; a protective kit, which is symmetrically arranged on both sides of the horizontal plate and is connected to the telescopic plate by a traction cable bundle that bypasses a grooved wheel rotatably installed on the horizontal plate and the base; and a spring-loaded component, which is set on the base and is connected to the telescopic plate by a one-way transmission mechanism between the base and the telescopic plate, thereby preventing workers' hands from being pinched during diaphragm forming.

[0004] The aforementioned pneumatic safety diaphragm forming equipment is only used for processing and forming diaphragms. However, it cannot immediately screen diaphragm products to select high-quality ones. It requires the use of other machinery and equipment for further screening, which is time-consuming and increases the cost of screening equipment, causing considerable inconvenience to users.

[0005] In view of the above, the inventors propose the following technical solution. Utility model content:

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a diaphragm carcass bonding and screening machine.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The diaphragm and carcass bonding and screening machine includes: a support frame; a carrier frame installed at the lower part of the support frame, the upper end of which is provided with a lower mold base for supporting the diaphragm and carcass; a bonding device including a lifting frame installed at the upper part of the support frame in a liftable manner, a drive module installed at the upper end of the support frame for driving the lifting frame to slide up and down, an upper mold base installed at the lower end of the lifting frame for cooperating with the lower mold base to bond and fix the diaphragm and carcass; and a screening device including a detection rod fixedly connected to the lifting frame, a displacement sensor installed at the lower part of the support frame for detecting the descent height of the detection rod, and an alarm mechanism for alarm.

[0008] Furthermore, in the above technical solution, the detection rod is installed on the outer side of the lower end of the lifting frame in an adjustable height manner.

[0009] Furthermore, in the above technical solution, a connecting frame is provided on the outer side of the lower end of the lifting frame, the detection rod has a threaded section, the connecting frame has a screw hole, the threaded section of the detection rod is screwed into the screw hole, and a nut is screwed onto the threaded section, which contacts the connecting frame.

[0010] Furthermore, in the above technical solution, the displacement sensor is mounted on the lower part of the bracket via a support base. The support base is also provided with a detachable protective cover, which covers the upper periphery of the displacement sensor, and the lower end of the detection rod extends partially into the protective cover.

[0011] Furthermore, in the above technical solution, the upper end of the support base is also provided with a groove for the lower end of the detection rod to be inserted; the upper end of the displacement sensor is placed in the groove and does not protrude from the groove.

[0012] Furthermore, in the above technical solution, the bracket includes a base plate, three support rods fixed to the base plate in a triangular shape, and a top plate fixed to the upper end of the support rods. The carrier is installed on the base plate, and the lifting frame and drive module are both installed on the top plate. The displacement sensor is located above the base plate.

[0013] Furthermore, in the above technical solution, a first start switch and a second start switch are respectively installed on the two support rods located on the left and right sides. When the first start switch and the second start switch are pressed at the same time, the bonding device will work.

[0014] Furthermore, in the above technical solution, a first clamp and a second clamp are respectively provided on the two support rods located on the left and right sides. The first clamp and the second clamp are respectively provided with a first adjustment seat and a second adjustment seat that can be rotated to adjust the angle. A first start switch and a second start switch are respectively installed on the first adjustment seat and the second adjustment seat, and the angle can be adjusted through the first adjustment seat and the second adjustment seat.

[0015] Furthermore, in the above technical solution, four height-adjustable feet are provided at the lower end of the base plate.

[0016] Furthermore, in the above technical solution, the alarm mechanism includes a display, which is mounted on the outer side of the upper end of the bracket via a connecting plate; the drive module includes a cylinder and an air source assembly connected to the cylinder.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: When the present invention is working, the diaphragm and the body are stacked on the lower mold base. Then the bonding device works, and the driving module drives the lower end of the lifting frame to drive the upper mold base to press down on the lower mold base. The upper mold base and the lower mold base cooperate to bond and fix the diaphragm and the body together. At the same time, the detection rod descends with the lifting frame. When the upper mold base and the lower mold base are pressed together, the detection rod contacts the displacement sensor to detect the descent height of the detection rod. If the diaphragm is two or more layers, an abnormal descent height of the detection rod will be detected, and the alarm mechanism will sound an alarm to remind the staff that the product is defective (i.e., unqualified). If the alarm mechanism does not sound an alarm, it means that the product is good (i.e., qualified). This makes it easier for the staff to screen out defective and good products, thereby improving work efficiency. No additional screening equipment is needed for screening. It is extremely convenient to use, reduces the production cycle, lowers production costs, and helps to improve market competitiveness. Attached image description:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a perspective view of the present invention from another angle. Detailed implementation method:

[0020] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0021] See Figure 1-2 As shown, a diaphragm carcass bonding and screening machine includes: a support 1, a carrier 2, a bonding device 3, and a screening device 4.

[0022] The carrier 2 is installed at the lower part of the support 1, and the upper end of the carrier 2 is provided with a lower mold base 21 for supporting the diaphragm and the body; the bonding device 3 includes a lifting frame 31 installed on the upper part of the support 1 in a liftable manner, a drive module 32 installed on the upper end of the support 1 for driving the lifting frame 31 to slide up and down, and an upper mold base installed on the lower end of the lifting frame 31 for cooperating with the lower mold base 21 to bond and fix the diaphragm and the body; the screening device 4 includes a detection rod 41 fixedly connected to the lifting frame 31, a displacement sensor 42 installed on the lower part of the support 1 for detecting the descent height of the detection rod 41, and an alarm mechanism 43 for alarm. In operation, the diaphragm and body are stacked on the lower mold base 21. Then, the bonding device 3 operates, with the drive module 32 driving the lower end of the lifting frame 31 to press the upper mold base against the lower mold base 21. The upper and lower mold bases cooperate to bond and fix the diaphragm and body together. Simultaneously, the detection rod 41 descends with the lifting frame 31, and as the upper and lower mold bases 21 press together, the detection rod 41 contacts the displacement sensor 42 to detect the descent height of the detection rod 41. If the inserted diaphragm has two or more layers, an abnormal descent height of the detection rod 41 will be detected, and the alarm mechanism 43 will sound an alarm to indicate to the staff that the product is defective (i.e., unqualified). If the alarm mechanism 43 does not sound an alarm, it means that the product is good (i.e. qualified). This makes it easier for staff to screen out defective and good products, thereby improving work efficiency. No additional screening equipment is needed, making it extremely convenient to use. It also reduces the production cycle, lowers production costs, and helps improve market competitiveness.

[0023] The following is a detailed description of the assembly structure of the detection rod 41.

[0024] The detection rod 41 is installed on the outer side of the lower end of the lifting frame 31 in an adjustable manner, so that the relative height of the detection rod 41 can be adjusted to meet different production requirements.

[0025] Specifically, a connecting frame 33 is provided on the outer side of the lower end of the lifting frame 31, and the detection rod 41 has a threaded section. The connecting frame 33 is provided with a screw hole 331. The threaded section of the detection rod 41 is screwed into the screw hole 331, and a nut is screwed onto the threaded section. The nut contacts the connecting frame 33, thereby limiting the detection rod 41 and making the assembly of the detection rod 41 and the connecting frame 33 more stable.

[0026] The displacement sensor 42 is mounted on the lower part of the bracket 1 via a support base 44, and is located directly below the detection rod 41. The support base 44 is also equipped with a detachable protective cover 45, which covers the upper periphery of the displacement sensor 42, and the lower end of the detection rod 41 partially extends into the protective cover 45. This prevents foreign objects from entering the displacement sensor 42 and affecting its normal operation and accuracy, thus achieving a protective function.

[0027] The support base 44 is further provided with a groove 441 at its upper end for inserting the lower end of the detection rod 41. The upper end of the displacement sensor 42 is placed in the groove 441 and does not protrude from the groove 441. That is, the groove 441 only allows the detection rod 41 to be inserted, ensuring stable detection and guaranteeing detection quality.

[0028] The specific structure of the bracket 1 is described below.

[0029] The bracket 1 includes a base plate 11, three support rods 12 fixed to the base plate 11 in a triangular shape, and a top plate 13 fixed to the upper end of the support rods 12. It is easy to assemble, uses only three support rods 12, and its size can be made smaller, making it suitable for use in small environments and with a wider range of applications.

[0030] The carrier 2 is mounted on the base plate 11, and the lifting frame 31 and the drive module 32 are both mounted on the top plate 13; the displacement sensor 42 is located above the base plate 11.

[0031] The two support rods 12 on the left and right sides are respectively equipped with a first start switch 121 and a second start switch 122. When the first start switch 121 and the second start switch 122 are pressed at the same time, the bonding device 3 will work and can achieve a protective function. Specifically, when using it, the operator needs to press the first start switch 121 and the second start switch 122 with both hands respectively before the bonding device 3 will work. This can effectively prevent the upper mold base from pressing down and pinching the hand, making it safer to use.

[0032] To make it more convenient to use, the following design was also made: a first clamp 123 and a second clamp 124 are respectively provided on the two support rods 12 on the left and right sides. The first clamp 123 and the second clamp 124 are respectively provided with a first adjustment seat 125 and a second adjustment seat 126 that can be rotated to adjust the angle. The first start switch 121 and the second start switch 122 are respectively installed on the first adjustment seat 125 and the second adjustment seat 126, and the angle can be adjusted through the first adjustment seat 125 and the second adjustment seat 126 to meet different usage requirements.

[0033] The base plate 11 is provided with four height-adjustable feet 111 at its lower end, which can be used to adjust the balance of the entire support 1.

[0034] The alarm mechanism 43 includes a display 431 that directly displays alarm information. The display 431 is mounted on the outer side of the upper end of the bracket 1 via a connecting plate 432. Of course, in some other embodiments, the alarm mechanism 43 also includes a buzzer for audible alarm and / or an alarm light for visual alarm.

[0035] The drive module 32 includes a cylinder 321 and an air source assembly 322 connected to the cylinder 321. Its structure is extremely simple and its cost is low.

[0036] In summary, during operation, the diaphragm and body are stacked on the lower mold base 21. Then, the bonding device 3 operates, with the drive module 32 driving the lower end of the lifting frame 31 to press the upper mold base against the lower mold base 21. The upper and lower mold bases cooperate to bond and fix the diaphragm and body together. Simultaneously, the detection rod 41 descends with the lifting frame 31, and as the upper and lower mold bases 21 press against each other, the detection rod 41 contacts the displacement sensor 42 to detect the descent of the detection rod 41. If the inserted diaphragm has two or more layers, an abnormal descent height of the detection rod 41 will be detected, and the alarm mechanism 43 will sound an alarm to indicate to the staff that the product is defective (i.e., unqualified). If the alarm mechanism 43 does not sound an alarm, it means that the product is good (i.e. qualified). This makes it easier for staff to screen out defective and good products, thereby improving work efficiency. No additional screening equipment is needed, making it extremely convenient to use. It also reduces the production cycle, lowers production costs, and helps improve market competitiveness.

[0037] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A diaphragm body fitting screening machine, characterized by: It includes: Frame (1); The carrier (2) is installed at the lower part of the support (1), and the upper end of the carrier (2) is provided with a lower mold base (21) for supporting the diaphragm and the body; The bonding device (3) includes a lifting frame (31) mounted on the upper part of the support (1) in a liftable manner, a drive module (32) mounted on the upper end of the support (1) and used to drive the lifting frame (31) to slide up and down, and an upper mold base mounted on the lower end of the lifting frame (31) and used to cooperate with the lower mold base (21) to bond and fix the diaphragm and the body. The screening device (4) includes a detection rod (41) fixedly connected to the lifting frame (31), a displacement sensor (42) installed on the lower part of the bracket (1) for detecting the descent height of the detection rod (41), and an alarm mechanism (43) for alarm.

2. The soundboard-body fit screening machine according to claim 1, characterized in that: The detection rod (41) is installed on the outer side of the lower end of the lifting frame (31) in an adjustable height manner.

3. The diaphragm carcass bonding and screening machine according to claim 2, characterized in that: A connecting frame (33) is provided on the outer side of the lower end of the lifting frame (31). The detection rod (41) has a threaded section. The connecting frame (33) is provided with a screw hole (331). The threaded section of the detection rod (41) is screwed into the screw hole (331), and a nut is screwed onto the threaded section. The nut contacts the connecting frame (33).

4. The membrane loudspeaker body fitment screening machine according to claim 1, characterized in that: The displacement sensor (42) is mounted on the lower part of the bracket (1) via a support base (44). The support base (44) is also provided with a detachable protective cover (45). The protective cover (45) covers the upper periphery of the displacement sensor (42), and the lower end of the detection rod (41) extends partially into the protective cover (45).

5. The membrane loudspeaker body fitment screening machine according to claim 4, characterized in that: The upper end of the support base (44) is also provided with a groove (441) for the lower end of the detection rod (41) to be inserted; the upper end of the displacement sensor (42) is placed in the groove (441) and does not protrude out of the groove (441).

6. The membrane body fitting screening machine according to any one of claims 1 to 5, characterized in that: The bracket (1) includes a base plate (11), three support rods (12) fixed in a triangular shape on the base plate (11), and a top plate (13) fixed on the upper end of the support rods (12). The carrier frame (2) is installed on the base plate (11), and the lifting frame (31) and the drive module (32) are both installed on the top plate (13). The displacement sensor (42) is located above the base plate (11).

7. The membrane loudspeaker body fitment screening machine according to claim 6, characterized in that: The first start switch (121) and the second start switch (122) are respectively installed on the two support rods (12) on the left and right sides. When the first start switch (121) and the second start switch (122) are pressed at the same time, the bonding device (3) will work.

8. The membrane loudspeaker body fitment screening machine according to claim 7, characterized in that: The two support rods (12) located on the left and right sides are respectively provided with a first clamp (123) and a second clamp (124). The first clamp (123) and the second clamp (124) are respectively provided with a first adjustment seat (125) and a second adjustment seat (126) that can be rotated to adjust the angle. The first start switch (121) and the second start switch (122) are respectively installed on the first adjustment seat (125) and the second adjustment seat (126), and the angle can be adjusted through the first adjustment seat (125) and the second adjustment seat (126).

9. The membrane loudspeaker body fitment screening machine according to claim 6, characterized in that: The bottom of the base plate (11) is provided with four height-adjustable foot pads (111).

10. The membrane loudspeaker body fitment screening machine according to claim 6, characterized in that: The alarm mechanism (43) includes a display (431), which is mounted on the outer side of the upper end of the bracket (1) via a connecting plate (432); the drive module (32) includes a cylinder (321) and an air source assembly (322) connected to the cylinder (321).