Screen cloth pressure maintaining device of headphone

Abstract

The utility model discloses a screen cloth pressure maintaining device of a headphone. The screen cloth pressure maintaining device comprises a machine table, a hot pressing device, a controller and a positioning jig, the positioning jig comprises a product positioning piece; the product positioning piece is arranged on the positioning jig in an up-down movable manner; the hot pressing device comprises a lower pressing piece, a heating module and a lifting driving device, the lower pressing piece is arranged above the positioning jig, and a profiling cavity is concavely formed in the side, facing the product positioning piece, of the lower pressing piece; the heating module is arranged on the lower pressing piece and is electrically connected to the controller; the lifting driving device drives the pressing piece to reciprocate up and down and is electrically connected to the controller; thus, the welding and attaching operation between the screen cloth and the plastic is achieved, the labor cost is saved, the production efficiency is improved, and due to the design of the product positioning piece and the profiling cavity, when the controller controls the lifting driving device to press downwards, accurate positioning of a product to be machined can be facilitated, and the situation that the screen cloth is not pressed in place due to looseness of the product is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of a pressure maintaining device for the mesh cloth of a headphone, in particular to a pressure maintaining device for the mesh cloth of a headphone. Background Art

[0002] With the development of technology and the progress of society, and the continuous improvement of people's living standards, head-mounted headphones have become one of the commonly used products for people, which are convenient for people to carry around; as the name implies, head-mounted headphones are worn on the head and are different from in-ear earplugs. Head-mounted headphones are composed of a headband, ear cups, drivers, wires, and ear pads. The ear pads of head-mounted headphones are used to wrap the sponge pads and can relieve the pressure on the human head when wearing the headphones, improving the comfort of wearing.

[0003] In the production process of the ear pads of existing head-mounted headphones, generally, there are processes such as leather surface forming, baking, cooling, laser drilling, bottom leather welding, double-sided tape pasting, and mesh cloth pasting; for example, in the process of pasting the mesh cloth, usually, workers use a hand-held welding machine to weld the mesh cloth and plastic. This pure manual method of welding the mesh cloth and plastic has the following defects: high manual labor intensity, inaccurate positioning, easy deviation, resulting in incomplete welding, uneven cloth pasting, easy foaming of the mesh cloth, and the risk of falling off, thus affecting the quality of the speaker housing.

[0004] Subsequently, a fully automatic earphone cover production line emerged on the market. The dough is fed to the processing station through a feeding device. The processing station rotates to the next station, and then the jig carrying the first plastic part is fed to the top of the dough through the feeding device. The processing station continues to rotate to the first welding mechanism. The first welding mechanism presses the jig and the first plastic part downward, causing the dough to wrap around the periphery of the jig. When the first plastic part abuts against the dough, the first welding mechanism welds the first plastic part and the dough; after the first plastic part and the dough are welded, the first welding mechanism releases the jig, the first plastic part, and the dough, and then continues to rotate the processing station. Then, the second plastic part is fed to the dough at the bottom of the jig through the feeding device, and then the processing station is rotated to the second welding mechanism to weld the dough and the second plastic part; then, after rotating the processing station, the mesh fabric is fed to one end of the second plastic part away from the dough through the feeding device, and the processing station is continuously rotated to the third welding mechanism to weld the mesh fabric and the second plastic part; after welding is completed, when the processing station rotates to the discharging position, the jig and the earphone cover are discharged through the discharging device; thus, the full-automatic production and processing of the earphone cover are realized, without manual feeding and discharging operations, which is conducive to improving the production quality and production efficiency of the earphone cover and facilitating the convenient completion of the production and processing operations of the earphone cover; however, this fully automatic production equipment has the following defects: although its production efficiency is high, the cost of this automatic equipment is expensive, the overall horizontal length of the fully automatic earphone cover production line is relatively large, occupying a large space, and it is not very suitable for the processing of small batches of multi-specification head-mounted earphones.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, in view of the deficiencies of the existing technology, the main purpose of the present utility model is to provide a mesh fabric pressure-holding device for a head-mounted earphone. Through the structural design and cooperation of a positioning jig and a hot pressing device, it effectively solves the problems of high manual labor intensity and high defect rate in the traditional method of manually using a welding torch for welding and fitting.

[0007] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0008] A mesh fabric pressure-holding device for a head-mounted earphone, comprising a machine platform, a hot pressing device, a controller, and a positioning jig arranged on the machine platform for placing the product to be pressed;

[0009] The positioning jig includes a product positioning part for installing the mesh fabric and the plastic; the product positioning part is arranged on the positioning jig in a vertically movable manner;

[0010] The hot pressing device includes a pressing member, a heating module, and a lifting driving device. The pressing member is disposed above the positioning jig, and a profiling cavity is recessed on one side of the pressing member facing the product positioning member. The heating module is disposed on the pressing member and electrically connected to the controller. The lifting driving device drives the pressing member to reciprocate up and down and is electrically connected to the controller.

[0011] As a preferred solution, an alarm is further disposed on the machine table, and the alarm is electrically connected to the controller.

[0012] As a preferred solution, the positioning jig includes a first mounting block and a second mounting block. The first mounting block and the second mounting block are disposed on the machine table through connecting columns. Among them, a mounting groove is recessed on the first mounting block, and an elastic member is disposed in the mounting groove. An avoidance hole is disposed on the second mounting block corresponding to the mounting groove. One end of the product positioning member abuts against the elastic member, and the other end of the product positioning member protrudes outside the second mounting block.

[0013] As a preferred solution, the hot pressing device further includes a connecting block. The connecting block is connected to the pressing member through a plurality of first guide columns. A mounting groove for mounting the heating module is recessed on the pressing member, and the heating module is fixedly mounted in the mounting groove. The output end of the lifting driving device is connected to the connecting block.

[0014] As a preferred solution, the machine table includes a first mounting platform and a second mounting platform which are oppositely disposed up and down. The first mounting platform and the second mounting platform are connected through second guide columns. Among them, the positioning jig is disposed on the first mounting platform, and the hot pressing device and the controller are disposed on the second mounting platform.

[0015] As a preferred solution, the lifting driving device is a cylinder.

[0016] As a preferred solution, the positioning jig further includes a buffer block. The buffer block is disposed on the top of the second mounting block. Among them, an avoidance position is disposed on the buffer block.

[0017] The utility model has obvious advantages and beneficial effects compared with the prior art. Specifically, as can be seen from the above technical solution, it mainly realizes the welding and fitting operation between the mesh cloth and the plastic through the structural design and cooperation of the positioning fixture and the hot pressing device. The hot pressing device includes a pressing member, a heating module, and a lifting driving device. The pressing member is arranged above the positioning fixture, and the heating module is arranged on the pressing member. The lifting driving device drives the pressing member to move up and down reciprocally. In this way, the welding and fitting operation between the mesh cloth and the plastic can be realized, saving labor costs and improving production efficiency. Secondly, it is the design of the product positioning member and the profiling cavity. When the controller controls the lifting driving device to press down, it is convenient for the precise positioning of the product to be processed, preventing it from loosening and affecting the insufficient pressing of the mesh cloth. It effectively solves the problems of high manual labor intensity and high defective rate in the traditional method of manually welding and fitting the mesh cloth and the plastic by using a hand-held welding device. In particular, the structure is simple and is conducive to large-scale popularization and application in the welding and fitting processing of the mesh cloth of small-batch and multi-specification head-mounted earphones.

[0018] To more clearly illustrate the structural features and functions of the present utility model, the following will describe the present utility model in detail with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of an embodiment of the present utility model;

[0020] Figure 2 is another perspective view of an embodiment of the present utility model

[0021] Figure 3 is a sectional view of an embodiment of the present utility model;

[0022] Figure 4 is Figure 3 a partial enlarged view of part A in

[0023] Figure 5 is a control block diagram of an embodiment of the present utility model.

[0024] DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS:

[0025] 10, machine table; 11, first mounting platform

[0026] 12, second mounting platform; 13, second guide post

[0027] 20, positioning fixture; 21, product positioning member

[0028] 22, first mounting block; 23, second mounting block

[0029] 24, connecting column; 221, mounting groove

[0030] 222, elastic member

[0031] 30. Hot pressing device 31. Lower pressing part

[0032] 32. Heating module 33. Lifting driving device

[0033] 311. Profiled cavity 312. Mounting groove

[0034] 34. Connecting block 35. First guide post

[0035] 40. Controller 50. Alarm

[0036] 60. Induction device. Detailed implementation manner

[0037] Please refer to Figures 1 to 5 as shown, which shows the specific structure of the embodiment of the present utility model.

[0038] In the description of the present utility model, it should be noted that for the orientation terms, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., the indicated orientation and position relationship are based on the orientation or position relationship shown in the drawings or during normal wearing and use, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0039] A net cloth pressure maintaining device for a headphone, comprising a machine table 10, a positioning fixture 20, a hot pressing device 30 and a controller 40;

[0040] The positioning fixture 20 is used to place the product to be pressed, and the positioning fixture 20, the hot pressing device 30 and the controller 40 are arranged on the machine table 10.

[0041] Preferably, the machine table 10 includes a first mounting platform 11 and a second mounting platform 12 which are arranged oppositely up and down, the first mounting platform 11 and the second mounting platform 12 are connected by a second guide post 13, wherein, the positioning fixture 20 is arranged on the first mounting platform 11, and the hot pressing device 30 and the controller 40 are arranged on the second mounting platform 12.

[0042] The positioning fixture 20 includes a product positioning part 21 for mounting the net cloth and the plastic; the product positioning part 21 is arranged on the positioning fixture 20 in a vertically movable manner;

[0043] Preferably, the positioning fixture 20 includes a first mounting block 22 and a second mounting block 23, and the first mounting block 22 and the second mounting block 23 are arranged on the machine table 10 through a connecting column 24; wherein, an installation groove 221 is recessed in the first mounting block 22, and an elastic member 222 is arranged in the installation groove 221; a relief hole is arranged on the second mounting block 23 corresponding to the installation groove 221, one end of the product positioning member 21 abuts against the elastic member 222, and the other end of the product positioning member 21 exposes outside the second mounting block 23. When the pressing member presses down, the pressing member will provide a downward pressing force to the product positioning member, so that the lower end of the product positioning member presses down the elastic member. When the processing is completed, the product positioning member loses the pressure of the pressing member. At this time, the product positioning member will reset under the action of the elastic member.

[0044] Preferably, the positioning fixture 20 further includes a buffer block, and the buffer block is arranged on the top of the second mounting block 23; wherein, a relief position is arranged on the buffer block.

[0045] The hot pressing device 30 includes a pressing member 31, a heating module 32 and a lifting driving device 33. The pressing member 31 is arranged above the positioning fixture 20, and a profiling cavity 311 is recessed on one side of the pressing member 31 facing the product positioning member 21; the heating module 32 is arranged on the pressing member 31 and electrically connected to the controller 40; the lifting driving device 33 drives the pressing member 31 to move up and down reciprocally and is electrically connected to the controller 40. Preferably, the hot pressing device 30 further includes a connecting block 34. The connecting block 34 is connected to the pressing member 31 through a plurality of first guide columns 35. A mounting groove 312 for installing the heating module 32 is recessed on the pressing member 31. The heating module 32 is installed and positioned in the mounting groove 312, and the output end of the lifting driving device 33 is connected to the connecting block 34. Preferably, the lifting driving device 33 is a cylinder.

[0046] Preferably, an alarm 50 and a sensing device 60 are further arranged on the machine table 10, and the alarm 50 is electrically connected to the controller 40. The sensing device 60 is located beside the product positioning member 21 and is electrically connected to the controller 40. After the product in the positioning fixture 20 is completed, the sensing device 60 will feedback to the controller 40, and the controller 40 will control the alarm 50 to sound an alarm to play a reminder role to remind the operator to take it out.

[0047] The design focus of the present utility model lies in that it mainly realizes the welding and fitting operation between the mesh fabric and the plastic through the structural design and cooperation of the positioning fixture and the hot pressing device. The hot pressing device includes a pressing member, a heating module and a lifting driving device. The pressing member is arranged above the positioning fixture, and the heating module is arranged on the pressing member. The lifting driving device drives the pressing member to reciprocate up and down. In this way, the welding and fitting operation between the mesh fabric and the plastic can be realized, saving labor costs and improving production efficiency. Secondly, it is the design of the product positioning member and the profiling cavity. When the controller controls the lifting driving device to press down, it is convenient for the precise positioning of the product to be processed to prevent it from loosening and affecting the incomplete pressing of the mesh fabric. It effectively solves the problems of high manual labor intensity and high defective rate in the traditional method of manually welding and fitting the mesh fabric and the plastic by using a hand-held welder. In particular, the structure is simple and is conducive to large-scale popularization and application in the welding and fitting processing of the mesh fabric of small-batch and multi-specification head-mounted earphones.

[0048] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A mesh pressing device for a head-mounted earphone, characterized in that: It includes a machine platform and a hot pressing device arranged on the machine platform, a controller and a positioning fixture for placing the product to be pressed; The positioning fixture includes a product positioning piece for installing the mesh and plastic; the product positioning piece can be movably arranged on the positioning fixture up and down; The hot pressing device includes a pressing piece, a heating module and a lifting drive device. The pressing piece is arranged above the positioning fixture, and a contour cavity is recessed on the side of the pressing piece facing the product positioning piece; the heating module is arranged on the pressing piece and is electrically connected to the controller; the lifting drive device drives the pressing piece to reciprocate up and down and is electrically connected to the controller.

2. The mesh pressing device for the headphone according to claim 1, characterized in that: The machine platform is also provided with an alarm, and the alarm is electrically connected to the controller.

3. The mesh pressing device for the head-mounted earphone according to claim 1, wherein: The positioning fixture includes a first mounting block and a second mounting block, and the first mounting block and the second mounting block are arranged on the machine platform through a connecting column; wherein, the first mounting block is recessed with a mounting groove, and an elastic member is arranged in the mounting groove; an avoidance hole is arranged at the corresponding mounting groove on the second mounting block, one end of the product positioning member is against the elastic member, and the other end of the product positioning member is exposed outside the second mounting block.

4. The mesh pressing device for the headphone according to claim 1, characterized in that: The hot pressing device also includes a connecting block, which is connected to the lower pressing piece through a plurality of first guide pillars. The lower pressing piece is provided with a mounting groove for mounting the heating module. The heating module is installed and positioned in the mounting groove. The output end of the lifting drive device is connected to the connecting block.

5. The mesh pressing device for the headset according to claim 1, wherein: The machine comprises a first mounting platform and a second mounting platform which are arranged opposite to each other up and down, and the first mounting platform and the second mounting platform are connected by a second guide column, wherein the positioning fixture is arranged on the first mounting platform, and the hot pressing device and the controller are arranged on the second mounting platform.

6. The mesh pressing device for the headset according to claim 1, characterized in that: The lifting drive device is a cylinder.

7. The mesh pressing device for the headphone according to claim 3, wherein: The positioning fixture also includes a buffer block, which is arranged on the top of the second mounting block; wherein the buffer block is provided with an avoidance position.

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