CN113927533B - Pressure maintaining equipment and method for maintaining pressure of flat cable on earphone shell - Google Patents
Pressure maintaining equipment and method for maintaining pressure of flat cable on earphone shell Download PDFInfo
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- CN113927533B CN113927533B CN202111133998.9A CN202111133998A CN113927533B CN 113927533 B CN113927533 B CN 113927533B CN 202111133998 A CN202111133998 A CN 202111133998A CN 113927533 B CN113927533 B CN 113927533B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
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Abstract
The invention relates to the technical field of earphones, in particular to pressure maintaining equipment and a pressure maintaining method for maintaining the pressure of a flat cable on an earphone shell, wherein the pressure maintaining equipment comprises a rotating device, a mounting seat and at least three positioning pressure maintaining devices; at least three positioning and pressure maintaining devices are uniformly arranged on the rotating disc at intervals along the circumferential direction; the positioning and pressure maintaining device comprises a positioning mechanism and a heating and pressure maintaining mechanism; the heating and pressure maintaining mechanism comprises a first driving component and a pressure maintaining component, the first driving component can drive the pressure maintaining component to move towards the first positioning component and abut against a flat cable arranged on the earphone shell, and the flat cable is further subjected to pressure maintaining through the pressure maintaining component; at least three positioning and pressure maintaining devices are uniformly arranged on the rotating disc at intervals in the circumferential direction, so that the space occupation ratio of equipment and the efficient utilization rate of the equipment are improved; meanwhile, the positioning and pressure maintaining device rotates along with the rotating disc to maintain the pressure of the flat cable; when this has reduced the interior winding displacement pressurize of earphone shell, the condition that other stations need wait for appears, has shortened the production beat, has promoted production efficiency.
Description
Technical Field
The invention relates to the technical field of earphones, in particular to pressure maintaining equipment and a pressure maintaining method for maintaining pressure on a flat cable on an earphone shell.
Background
With the rapid development of science and technology, smart phones and other digital players are increasingly popularized, and earphones serving as necessary accessories of smart phones and other digital players are increasingly updated, so that the earphones become indispensable necessities for people to enjoy video and audio multimedia entertainment and life.
Accordingly, the demand for the headset mounting equipment is also increasing; however, the existing earphone is basically assembled by manual processing, and because a plurality of parts are installed in the earphone shell, a plurality of procedures are required to be carried out when one earphone is assembled; generally, one worker is responsible for one process, so that the worker is required to move to another process for processing every time one process is processed, so that the labor cost is improved, the earphone assembling efficiency is low, the working speed is low, the labor cost is high, the safety of manual operation is low, the labor cost is high, the quality of a produced product is unstable and cannot be reliably guaranteed, and the long-term stable development of a client is difficult to meet;
even if the earphone is assembled by using the assembling equipment, the labor cost is increased, and the assembling precision is low; for example, when a flat cable is installed in a headphone housing, pressure holding needs to be performed on the installed flat cable, and the conventional pressure holding mechanism has a complicated structure, is not easy to perform pressure holding operation on the flat cable, and has low operation precision. When the existing pressure maintaining mechanism maintains pressure on the previous flat cable, the next flat cable can be fed only after the pressure maintaining of the previous flat cable is finished. The method also increases the redundant waiting time and the labor cost, thereby reducing the production efficiency, being not beneficial to large-scale industrial production of enterprises, and simultaneously having the problems of high labor intensity, high production cost and the like.
Based on the disadvantages of the prior art, there is a need to develop a pressure maintaining device and method for maintaining pressure of the flat cable on the earphone housing to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides pressure maintaining equipment and a pressure maintaining method for maintaining the flat cable on the earphone shell, wherein at least three positioning pressure maintaining devices are uniformly arranged on the rotating disc at intervals in the circumferential direction, so that the space occupation ratio of the equipment and the high-efficiency utilization rate of the equipment can be improved; the earphone shell placed on each positioning and pressure maintaining device can perform alignment, pressure maintaining and material taking operations in sequence, and meanwhile the positioning and pressure maintaining devices rotate along with the rotating disc to maintain pressure on the flat cable; when the pressure maintaining of the flat cable in the earphone shell is reduced, the condition that other stations need to wait is reduced, the waiting time consumption of other stations is reduced, the production beat is shortened, the production efficiency is improved, and the production cost is further saved.
The invention discloses pressure maintaining equipment for maintaining pressure of a flat cable on a shell of an earphone, which comprises a rotating device, a mounting seat and at least three positioning and pressure maintaining devices, wherein the rotating device is arranged on the mounting seat;
a feeding and discharging station is arranged on the mounting seat and is relatively fixed with the mounting seat;
the rotating device is arranged on the mounting seat and comprises a rotating disc and a driving mechanism; the at least three positioning and pressure maintaining devices are uniformly arranged on the rotating disc at intervals along the circumferential direction, and the driving mechanism can drive the rotating disc to rotate so as to drive the positioning and pressure maintaining devices to rotate around the axis of the rotating disc;
the positioning and pressure maintaining device comprises a positioning mechanism and a heating and pressure maintaining mechanism which is arranged correspondingly to the positioning mechanism;
the positioning mechanism comprises a first positioning component, and the first positioning component is used for accommodating and positioning the earphone shell;
the heating and pressure maintaining mechanism comprises a first driving component, a first heating component and a pressure maintaining component, the first heating component is used for heating the pressure maintaining component, the first driving component can drive the pressure maintaining component to move towards the first positioning component and abut against a flat cable arranged on the earphone shell, and the flat cable is subjected to pressure maintaining through the pressure maintaining component.
Furthermore, an alignment station is also arranged on the mounting seat;
and an alignment device is arranged on the alignment station and is used for acquiring the position information of the earphone shell and the position information of the flat cable.
The positioning and pressure maintaining device comprises a positioning and pressure maintaining device and an alignment device, wherein the positioning and pressure maintaining device is arranged on the positioning and pressure maintaining device;
the controller is used for acquiring the position information of the earphone shell and the position information of the flat cable and controlling the position of the positioning and pressure maintaining device according to the position information of the earphone shell and the position information of the flat cable;
the controller is used for controlling the positioning and pressure maintaining device to maintain the pressure of the flat cable in the earphone shell.
Further, the drive mechanism comprises a second drive assembly and an electro-pneumatic slip ring assembly;
the gas-electric slip ring assembly is fixedly connected with the rotating disc, and the gas-electric slip ring assembly and the second driving assembly are arranged on the same side of the rotating disc;
the second driving assembly is used for driving the rotating disc to rotate around the axis of the rotating disc so as to adjust the position of the positioning and pressure maintaining device;
the gas-electric slip ring assembly is also electrically connected with the second driving assembly, so that the gas-electric slip ring assembly can provide electric energy for the second driving assembly.
Further, the positioning mechanism comprises a third driving assembly and a second positioning assembly;
the third driving assembly can drive the second positioning assembly to move towards the first positioning assembly, so that the second positioning assembly can limit the earphone shell arranged on the first positioning assembly.
Further, the first positioning component comprises a positioning component and a first heating component, and the first heating component is arranged on the positioning component; the positioning piece is provided with a positioning groove for positioning the earphone shell;
the second locating component includes the second heating member, the second heating member with first heating member one-to-one sets up, just the second heating member with form the accommodation hole behind the first heating member butt, the accommodation hole is used for holding the part the earphone shell.
Further, the first heating element and the second heating element are both block-shaped structures;
first recess has been seted up on the first heating member, the second recess has been seted up on the second heating member, first heating member with behind the second heating member butt, first recess with the second recess forms the accommodation hole.
Further, the heating and pressure maintaining mechanism further comprises a mounting component and a pressure relief component;
the pressure relief assembly can be right the pressurize subassembly pressure release, the pressure relief assembly, first heating element with the pressurize subassembly all with installation component fixed connection, installation component with first drive assembly connects, first drive assembly can drive the installation component orientation the constant head tank removes.
Furthermore, the number of the positioning and pressure maintaining devices is six, and the six positioning and pressure maintaining devices are uniformly arranged on the rotating disc at intervals.
The invention also protects a pressure maintaining method applied to an earphone shell, which is characterized in that the pressure maintaining method is applied to the pressure maintaining equipment for maintaining the pressure of the flat cable on the earphone shell, and the method comprises the following steps:
acquiring the number of the positioning and pressure maintaining devices;
determining a preset angle of each rotation of the rotating device according to the number of the positioning and pressure maintaining devices;
acquiring a first time length for the pressure maintaining component to maintain the pressure of the flat cable;
determining the preset time length for keeping the rotating device at the current station according to the first time length and the number of the positioning and pressure maintaining devices;
controlling the positioning and pressure maintaining device to position the earphone shell at a feeding and discharging station;
controlling the pressure maintaining component to maintain the cable on the earphone shell placed on the first positioning component for a first time length;
and after the first time period, controlling the rotating device to rotate by a preset angle to the feeding and discharging station.
The embodiment of the invention has the following beneficial effects:
1. the rotating disc is uniformly provided with at least three positioning and pressure maintaining devices at intervals in the circumferential direction, so that the space occupation ratio of equipment and the efficient utilization rate of the equipment can be improved; the earphone shell placed on each positioning and pressure maintaining device can perform alignment, pressure maintaining and material taking operations in sequence, and meanwhile the positioning and pressure maintaining devices rotate along with the rotating disc to maintain pressure on the flat cable; when the pressure maintaining of the flat cable in the earphone shell is reduced, the condition that other stations need to wait is reduced, the waiting time consumption of other stations is reduced, the production beat is shortened, the production efficiency is improved, and the production cost is further saved.
2. The heating and pressure maintaining mechanism is simple in structure, so that the heating and pressure maintaining mechanism is simple to operate when maintaining the pressure of the flat cable, and the time loss of pressure maintaining is reduced; meanwhile, the pressure maintaining component is heated, and then the flat cable is subjected to pressure maintaining, so that the mounting precision can be improved, and the flat cable in the earphone shell is subjected to pressure maintaining in a compact space range through inflation and expansion of the pressure maintaining air bag; the pressure maintaining air bag is used for maintaining the pressure of the flat cable, so that the flat cable can be prevented from being damaged, and the production cost is increased.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art it is also possible to derive other drawings from these drawings without inventive effort.
Fig. 1 is a structural view of a pressure maintaining device for maintaining pressure on a flat cable on a headphone housing according to the present embodiment;
fig. 2 is a top view of the pressure maintaining device for maintaining pressure on the flat cable on the earphone housing according to the embodiment;
FIG. 3 is a structural view of the positioning mechanism according to the present embodiment;
FIG. 4 is a structural view of a heating and pressure-maintaining mechanism according to the present embodiment;
fig. 5 is a structural diagram of the positioning element and the earphone housing according to the present embodiment after being connected;
fig. 6 is a structural diagram of the positioning element and the first heating element according to the present embodiment after being connected;
fig. 7 is an enlarged view of the first heating element and the second heating element of the present embodiment;
FIG. 8 is a structural view of the rotating apparatus according to the present embodiment;
FIG. 9 is a schematic view illustrating the replacement and disassembly of the pressure maintaining airbag according to this embodiment;
FIG. 10 is a structural view of the pressure maintaining unit according to the present embodiment;
FIG. 11 is a partial sectional view of the airbag positioning mechanism of this embodiment.
Wherein the reference numerals in the figures correspond to:
1-a rotation device; 2-positioning a pressure maintaining device; 3-mounting a base; 4-aligning device; 5-earphone shell; 6-flat cable; 11-a rotating disc; 12-a second drive assembly; 21-a positioning mechanism; 22-a heating and pressure maintaining mechanism; 211-a third drive assembly; 212-a first positioning assembly; 213-a second positioning component; 221-a first drive assembly; 222-a first heating assembly; 223-a pressure maintaining component; 224-a mounting assembly; 225-a pressure relief assembly; 2121-a positioning element; 2122-a first heating element; 2123-first groove; 2131-a second heating element; 2132-a second groove; 2231-air intakes; 2232-pressure maintaining air bag; 2233-an airbag positioning mechanism; 21211-positioning groove; 22321-pressure keeping part; 22322-airbag mounting bosses; 22331-a first balloon positioning element; 22332-a second balloon retainer; 22333-quick clamping mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The prior art has the following disadvantages: the earphone is assembled by using the assembling equipment, so that the labor cost is increased and the assembling precision is low; for example, when a flat cable is installed in a headphone housing, pressure holding needs to be performed on the installed flat cable, and the conventional pressure holding mechanism has a complicated structure, is not easy to perform pressure holding operation on the flat cable, and has low operation precision. When the existing pressure maintaining mechanism maintains pressure on the previous flat cable, the next flat cable can be fed only after the pressure maintaining of the previous flat cable is finished. The method also increases the redundant waiting time and the labor cost, thereby reducing the production efficiency, being not beneficial to large-scale industrial production of enterprises, and simultaneously having the problems of high labor intensity, high production cost and the like.
Aiming at the defects of the prior art, at least three positioning and pressure maintaining devices are uniformly arranged on the rotating disc at intervals in the circumferential direction, so that the space occupation ratio of equipment and the efficient utilization rate of the equipment can be improved; the earphone shell placed on each positioning and pressure maintaining device can perform alignment, pressure maintaining and material taking operations in sequence, and meanwhile the positioning and pressure maintaining devices rotate along with the rotating disc to maintain pressure on the flat cable; when the pressure maintaining of the flat cable in the earphone shell is reduced, the condition that other stations need to wait is reduced, the waiting time consumption of other stations is reduced, the production beat is shortened, the production efficiency is improved, and the production cost is further saved.
Example 1
Referring to fig. 1 to 11, the embodiment provides a pressure maintaining device for maintaining pressure of a flat cable on an earphone housing, which includes a rotating device 1, a mounting seat 3, and at least three positioning and pressure maintaining devices 2;
a feeding and discharging station is arranged on the mounting seat 3 and is relatively fixed with the mounting seat 3;
the rotating device 1 is arranged on the mounting base 3, and the rotating device 1 comprises a rotating disc 11 and a driving mechanism; the at least three positioning and pressure maintaining devices 2 are uniformly arranged on the rotating disc 11 at intervals along the circumferential direction, and the driving mechanism can drive the rotating disc 11 to rotate so as to drive the positioning and pressure maintaining devices 2 to rotate around the axis of the rotating disc 11;
the positioning and pressure maintaining device 2 comprises a positioning mechanism 21 and a heating and pressure maintaining mechanism 22 which is arranged correspondingly to the positioning mechanism 21;
the positioning mechanism 21 comprises a first positioning component 212, and the first positioning component 212 is used for accommodating and positioning the earphone shell 5;
the heating and pressure maintaining mechanism 22 comprises a first driving component 221, a first heating component 222 and a pressure maintaining component 223, the first heating component 222 is used for heating the pressure maintaining component 223, the first driving component 221 can drive the pressure maintaining component 223 to move towards the first positioning component 212 and abut against the flat cable 6 mounted on the earphone shell 5, and then the pressure maintaining component 223 maintains the pressure of the flat cable 6;
specifically, the heating and pressure maintaining mechanism 22 is used for continuously applying pressure to the flat cable 6 located in the cavity of the earphone shell 5; the air bag positioning mechanism 2233 is used to fix the pressure maintaining air bag 2232, so that when the positioning mechanism 21 clamps the earphone housing 5, the position of the assembly opening of the pressure maintaining air bag 2232 corresponds to the position of the assembly opening of the earphone housing 5, so that the pressure maintaining air bag 2232 can be driven forward and accurately enter the assembly opening of the earphone housing 5, and the flat cable 6 is located between the inner wall of the assembly opening of the earphone housing 5 and the pressure maintaining air bag 2232.
It should be noted that: in the embodiment, at least three positioning and pressure maintaining devices 2 are uniformly arranged at intervals in the circumferential direction of the rotating disc, so that the space occupation ratio of equipment and the efficient utilization rate of the equipment can be improved; the earphone shell 5 placed on each positioning and pressure maintaining device 2 can perform alignment, pressure maintaining and material taking operations in sequence, and meanwhile the positioning and pressure maintaining devices 2 rotate along with the rotating disc 11 to maintain pressure on the flat cable 6; this has reduced when 6 pressurize of earphone casing 5 internal winding displacement, and the condition that other stations need wait for appears, has reduced other stations latency consumption, has shortened the production beat, has promoted production efficiency, and then has practiced thrift manufacturing cost.
The feeding and discharging station is used for an operator to place or take down the earphone shell 5, and the pressure maintaining equipment is provided with an opening for the operator to stand or be operated by the operator.
In some possible embodiments, the mounting base 3 is further provided with an alignment station;
and an alignment device 4 is arranged on the alignment station, and the alignment device 4 is used for acquiring the position information of the earphone shell 5 and the position information of the flat cable 6.
Specifically, the alignment station is used for the alignment device 4 to obtain the position information of the earphone shell 5 and the flat cable 6, respectively.
Referring to fig. 1, the alignment device 4 includes an image acquisition device, and the image acquisition device is configured to acquire position information of the earphone shell 5 and position information of the flat cable 6 on the positioning and pressure maintaining device corresponding to the alignment station position on the rotating disc 11.
Referring to fig. 2, a feeding and discharging station and an alignment station are sequentially arranged on the mounting base 3 at intervals;
at least three positioning and pressure maintaining devices 2 are arranged on the rotating disc 11, the at least three positioning and pressure maintaining devices 2 are uniformly arranged on the rotating disc 11 at intervals along the circumferential direction, and the angle between every two adjacent positioning and pressure maintaining devices 2 is a first angle;
in the first case, an included angle between the alignment station and the feeding and discharging station is smaller than the first angle, so that when the rotating disc 11 drives the positioning and pressure maintaining device 2 to rotate by a preset angle, the alignment device 4 acquires the position information of the earphone shell 5 and the position information of the flat cable 6, and sends the position information of the earphone shell 5 and the position information of the flat cable 6 to the controller, and the controller adjusts the position between the positioning mechanism 21 and the heating and pressure maintaining mechanism 22 in the rotating process, so that the pressure maintaining assembly 223 can maintain the pressure of the flat cable 6.
Under the second condition, an included angle between the alignment station and the feeding and discharging station is equal to the first angle; namely, the rotating disc 11 drives the positioning and pressure maintaining device 2 to rotate by a preset angle, at this time, one positioning and pressure maintaining device 2 on the rotating disc 11 rotates from the feeding and discharging station to the alignment station, the stop time of the positioning and pressure maintaining device 2 at the feeding and discharging station is equal to the stop time of the alignment station, at this time, the positioning and pressure maintaining device 2 stops at the alignment station to adjust the position between the positioning mechanism 21 and the heating and pressure maintaining mechanism 22, so that the pressure maintaining assembly 223 can maintain the pressure of the flat cable 6.
In some possible embodiments, the positioning and pressure maintaining device further comprises a controller, wherein the controller is electrically connected with the positioning and pressure maintaining device 2 and the alignment device 4 respectively;
the controller is used for acquiring the position information of the earphone shell 5 and the position information of the flat cable 6, and controlling the position of the positioning and pressure maintaining device 2 according to the position information of the earphone shell 5 and the position information of the flat cable 6;
the controller is used for controlling the positioning and pressure maintaining device 2 to maintain pressure of the inner flat cable 6 of the earphone shell 5.
In other possible embodiments, the positioning mechanism 21 and the heating and pressure maintaining mechanism 22 in the positioning and pressure maintaining device 2 are electrically connected to the controller, the controller can be electrically connected to the positioning mechanism 21 and the heating and pressure maintaining mechanism 22 respectively, namely, the controller can control the relative positions of the positioning mechanism 21 and the heating and pressure maintaining mechanism 22 respectively according to the position information of the earphone shell 5 and the position information of the flat cable 6 acquired by the image acquisition device, so that the positioning mechanism 21 can be matched with the heating and pressure maintaining mechanism 22 relatively, and the heating and pressure maintaining mechanism 22 can maintain the pressure of the flat cable 6 on the earphone shell 5 placed in the positioning mechanism 21, and the heating and pressure maintaining mechanism 22 has a simple structure, so that the heating and pressure maintaining mechanism 22 is easy to operate when maintaining the pressure of the flat cable 6, thereby reducing the time loss of pressure maintaining and lowering the production cost.
Specifically, the controller can acquire the position information of the earphone shell 5 and the position information of the flat cable 6 acquired by the image acquisition device, and control the relative position between the positioning mechanism 21 and the heating and pressure maintaining mechanism 22 correspondingly arranged with the positioning mechanism according to the position information of the earphone shell 5 and the position information of the flat cable 6, so that the heating and pressure maintaining mechanism 22 can perform hot pressing on the flat cable 6 in the earphone shell 5, thereby ensuring that the flat cable 6 and the earphone shell 5 can be stably fixed, and avoiding the problem that the flat cable 6 falls off due to insufficient pressure maintaining position or pressure maintaining time, which affects the yield of products.
In other possible embodiments, the controller is electrically connected to the rotating device 1, and the controller can control the rotating time length, the stop time length, and the rotating angle of the rotating disk 11 in the rotating device 1.
In this embodiment, the controller controls the rotating disc 11 to rotate by a preset angle every time, the stop time periods of the rotating disc 11 are equal, and the rotation time periods of the rotating disc 11 rotating by a preset angle are equal.
In some possible embodiments, the drive mechanism comprises a second drive assembly 12 and an electrical slip ring assembly;
the gas-electric slip ring assembly is fixedly connected with the rotating disc 11, and the gas-electric slip ring assembly and the second driving assembly 12 are both arranged on the same side of the rotating disc 11;
the second driving assembly 12 is used for driving the rotating disc 11 to rotate around the axis of the rotating disc 11 so as to adjust the position of the positioning and pressure maintaining device 2;
the gas-electric slip ring assembly is also electrically connected to the second drive assembly 12 such that the gas-electric slip ring assembly can provide electrical power to the second drive assembly 12.
In some possible embodiments, the second driving assembly 12 in the rotating device 1 is electrically connected with the controller; the controller is used for controlling the second driving component 12 to rotate, and the second driving component 12 drives the rotating disc 11 to rotate by a preset angle each time; furthermore, the controller controls the second driving assembly 12 to rotate by a preset angle after the second driving assembly stays for a preset time.
In some possible embodiments, the positioning mechanism 21 comprises a third driving assembly 211 and a second positioning assembly 213;
the third driving component 211 can drive the second positioning component 213 to move toward the first positioning component 212, so that the second positioning component 213 can limit the position of the earphone shell 5 disposed on the first positioning component 212.
Referring to fig. 7, the first positioning assembly 212 includes a positioning member 2121 and a first heating member 2122, and the first heating member 2122 is disposed on the positioning member 2121; the positioning piece 2121 is provided with a positioning groove 21211 for positioning the earphone housing 5;
the second positioning assembly comprises a second heating element 2131, the second heating element 2131 and the first heating element 2122 are arranged in a one-to-one correspondence mode, a containing hole is formed after the second heating element 2131 is abutted to the first heating element 2122, the containing hole is used for containing a part of the earphone shell 5, the pressure maintaining assembly 223 is heated, then the flat cable 6 is subjected to pressure maintaining, and the installation accuracy can be improved.
In some possible embodiments, the first heating element 2122 and the second heating element 2131 are both block-shaped structures;
the first heating element 2122 is provided with a first groove 2123, the second heating element 2131 is provided with a second groove 2132, and after the first heating element 2122 abuts against the second heating element 2131, the first groove 2123 and the second groove 2132 form the accommodating hole.
Referring to fig. 4, the heating and pressure maintaining mechanism 22 further includes a mounting component 224 and a pressure relief component 225;
the pressure relief component 225 can relieve the pressure maintaining component 223, the pressure relief component 225, the first heating component 222 and the pressure maintaining component 223 are all fixedly connected to the mounting component 224, the mounting component 224 is connected to the first driving component 221, and the first driving component 221 can drive the mounting component 224 to move toward the positioning groove 21211; the heating and pressure maintaining mechanism 22 has a simple structure, so that the heating and pressure maintaining mechanism 22 is simple to operate when maintaining the pressure of the flat cable 6, and the time loss of pressure maintaining is reduced; meanwhile, the pressure maintaining component 223 is heated, and then the flat cable 6 is subjected to pressure maintaining, so that the mounting precision can be improved.
In other possible embodiments, the pressure maintaining assembly 223 includes an air inlet 2231, a pressure maintaining air bag 2232, and an air bag positioning mechanism 2233, the air bag positioning mechanism 2233 is configured to clamp the pressure maintaining air bag 2232, and the air bag positioning mechanism 2233 is fixedly connected to the mounting assembly 224;
the pressure maintaining balloon 2232 is in selective communication with the air inlet 2231 and the pressure relief assembly 225, respectively;
the pressure maintaining portion 22321 in the pressure maintaining airbag 2232 can penetrate through the receiving hole, when the earphone housing 5 is disposed in the positioning groove 21211 and is limited by the receiving hole, the pressure maintaining portion 22321 can abut against an inner wall of the earphone housing 5 in the receiving hole and an umbilical cord 6 in the earphone housing 5, and the umbilical cord 6 in the earphone housing 5 is inflated and expanded by the pressure maintaining airbag 2232, so that a pressure maintaining function for the umbilical cord 6 in the earphone housing 5 in a compact space range is achieved; the flat cable 6 can be prevented from being damaged by using the pressure maintaining air bag 2232 to maintain the pressure of the flat cable 6, which increases the production cost.
The pressure maintaining assembly 223 includes an air inlet 2231, a pressure maintaining air bag 2232, and an air bag positioning mechanism 2233;
the balloon positioning mechanism 2233 is configured to fix the pressure maintaining balloon 2232, so that when the positioning mechanism 21 clamps the earphone housing 5, the pressure maintaining balloon 2232 corresponds to an assembly opening of the earphone housing 5;
the first driving assembly 221 is used for controlling the air bag positioning mechanism 2233 to move relatively close to or away from the positioning mechanism 21;
the holding bladder 2232 includes a holding portion 22321, and the air inlet 2231 is communicated with the holding bladder 2232 and is configured to supply fluid to the holding bladder 2232 so that the holding portion 22321 is expanded from an original state to a holding state; the outer diameter of the pressure-holding part 22321 in the original state is smaller than the outer diameter of the assembly opening of the earphone housing 5; when the cable 6 is located in the earphone shell 5 and is in a pressure maintaining state, the cable is pressed against the inner wall of the earphone shell 5; carry out the pressurize that lasts after accomplishing the installation of winding displacement 6 through adopting expandable pressurize gasbag 2232 to the cooperation can realize the positioning mechanism that earphone casing 5 and pressurize gasbag 2232 realized counterpointing, can be abundant carry out abundant exerting pressure to the winding displacement that is located in narrow and small space, and final 6 laminating of winding displacement are effectual, and the efficiency and the stability of earphone assembly have apparent improvement.
In some possible embodiments, the dwell 22321 is cylindrical, including an end made of a hard material and a sidewall made of an elastic polymer material.
In some possible embodiments, the pressure-maintaining airbag 2232 includes a cylindrical pressure-maintaining portion 22321 and an airbag mounting protrusion 22322, the airbag mounting protrusion 22322 is a step provided at the bottom of the pressure-maintaining portion 22321, the airbag positioning mechanism 2233 includes a first airbag positioning piece 22331 and a second airbag positioning piece 22332, the first airbag positioning piece 22331 includes a mounting through hole and a limiting groove located at the bottom of the mounting through hole, the pressure-maintaining portion 22321 passes through the mounting through hole and the airbag mounting protrusion 22322 abuts against the limiting groove, and the first airbag positioning piece 22331 and the second airbag positioning piece 22332 clamp and define the airbag mounting protrusion 22322 in the limiting groove.
In some possible embodiments, the airbag mounting protrusion 22322 is made of an elastic material, and the thickness of the airbag mounting protrusion 22322 is greater than the limiting groove; the airbag mounting protrusion 22322 is made of an elastic material and has a thickness greater than that of the limiting groove, when the airbag mounting protrusion 22322 of the airbag positioning mechanism 2233 is clamped and limited in the limiting groove by the first airbag positioning element 22332 and the second airbag positioning element 22333, the first airbag positioning element 22332 and the second airbag positioning element 22333 are attached to each other, and the airbag mounting protrusion 22322 is compressed in the limiting groove and is in a compressed state, so that the pressure maintaining airbag 2232 is clamped more stably.
In some possible embodiments, the first airbag positioning element 22331 and the second airbag positioning element 22332 are relatively fixedly connected by a quick clamping mechanism 22333, a pressing inclined surface is provided on the outer side of the first airbag positioning element 22331 and/or the second airbag positioning element 22332, and a clamping inclined surface matched with the pressing inclined surface is provided on the inner side of the quick clamping mechanism 22333; when the clamping grooves of the two clamping members of the quick clamping mechanism 22333 are fitted to the convex edges of the first airbag positioning member 22332 and the second airbag positioning member 22333 and are closed, the quick clamping mechanism can realize the pressing force of the first airbag positioning member 22332 and the second airbag positioning member 22333 by pressing the clamping inclined surfaces matched with the pressing surfaces, so that the airbag mounting protrusion 22322 is pressed and compressed into the limiting groove.
In some possible embodiments, the second balloon positioning member 22332 is provided with an air delivery through hole communicating with the mounting through hole, and the air inlet member 2231 delivers fluid to the holding balloon 2232 through the air delivery through hole.
In some possible embodiments, the air inlet 2231 comprises a gas delivery tube passing through the air delivery through-hole and at least partially inside the holding bladder 2232, the gas delivery tube having a plurality of fluid through-holes in a side wall thereof.
In some possible embodiments, a fluid heating device is disposed on the air inlet 2231, and is used for heating the fluid delivered from the air inlet 2231 to the pressure maintaining balloon 2232; the gas that inflates the holding bladder 2232 is heated, so that the holding bladder 2232 is heated while pressing the flat cable 6, and the bonding effect is further promoted.
In some possible embodiments, the number of the positioning and pressure-maintaining devices 2 is six, and six positioning and pressure-maintaining devices 2 are arranged on the rotating disk 11 at equal intervals.
Specifically, the positioning pressurizers 2 are uniformly arranged on the rotating disc 11 at intervals along the circumferential direction of the rotating disc 11, a first included angle between every two adjacent positioning pressurizers 2 is 60 degrees, namely, every time the positioning pressurizers rotate 60 degrees, one positioning pressurizer 2 rotates to an upper discharging station to perform loading and unloading operation.
Furthermore, for each rotation of one positioning and pressure maintaining device 2 on the rotating disc 11 after the feeding operation is completed, the alignment operation, the pressure maintaining operation and the discharging operation are sequentially performed; the four times of pressure maintaining operation is continuous pressure maintaining, and the positioning mechanism 21 and the heating and pressure maintaining mechanism 22 do not move relatively.
Specifically, when the alignment operation is performed, the controller controls the relative position between the positioning mechanism 21 and the heating and pressure maintaining mechanism 22 correspondingly disposed thereon according to the position information of the earphone shell 5 and the position information of the flat cable 6, and controls the pressure maintaining airbag 2232 to inflate, so that the heating and pressure maintaining mechanism 22 can thermally compress the flat cable 6 in the earphone shell 5, thereby ensuring that the flat cable 6 and the earphone shell 5 can be stably fixed.
The invention also protects a pressure maintaining method applied to an earphone shell, which is characterized in that the pressure maintaining method is applied to the pressure maintaining equipment for maintaining the pressure of the flat cable on the earphone shell, and the method comprises the following steps:
acquiring the number of the positioning and pressure maintaining devices 2;
determining a preset angle of each rotation of the rotating device 1 according to the number of the positioning and pressure maintaining devices 2;
acquiring a first time length for the pressure maintaining component 223 to maintain the pressure of the flat cable 6;
determining the preset time length for keeping the rotating device 1 at the current station according to the first time length and the number of the positioning and pressure maintaining devices 2;
controlling the positioning and pressure maintaining device 2 to position the earphone shell 5 at a feeding and discharging station;
controlling the pressure maintaining component 223 to maintain the cable 6 on the earphone shell 5 of the first positioning component 212 for a first duration;
after the first time period, the rotating device 1 is controlled to rotate by a preset angle to the feeding and discharging station.
It should be noted that: the pressure maintaining method applied to the pressure maintaining equipment for maintaining the flat cable on the earphone shell can sequentially perform alignment, pressure maintaining and material taking operations on the earphone shells 5 placed on each positioning pressure maintaining device 2, and meanwhile, the positioning pressure maintaining devices 2 rotate along with the rotating disc 11 to maintain the pressure on the flat cable 6; this has reduced when 6 pressurize of earphone casing 5 internal winding displacement, and the condition that other stations need wait for appears, has reduced other stations latency consumption, has shortened the production beat, has promoted production efficiency, and then has practiced thrift manufacturing cost.
In some possible embodiments, said determining a preset angle of each rotation of said rotating means 1 according to the number of said positioning and pressure-maintaining devices 2 comprises:
and dividing 360 degrees by the number of the positioning and pressure maintaining devices 2 to obtain a preset angle of each rotation of the rotating device 1.
In some possible embodiments, after the first period of time, the controlling the rotating device 1 to rotate to the loading and unloading station by a preset angle includes:
after a first time period, in the process of rotating to the feeding and discharging station, controlling the first driving component 221 in the heating and pressure maintaining mechanism 22 to drive the pressure maintaining component 223 to be away from the flat cable 6 in the positioning mechanism 21, and controlling the pressure maintaining component 223 to recover to an initial position and an initial state;
or after a first time and after the first time is rotated to the feeding and discharging station, controlling the first driving component 221 in the heating and pressure maintaining mechanism 22 to drive the pressure maintaining component 223 to be away from the flat cable 6 in the positioning mechanism 21, and controlling the pressure maintaining component 223 to be restored to the initial position and the initial state; wherein the initial position is a position before the pressure maintaining member 223 moves toward the flat cable 6, and the initial state is an uninflated state of the pressure maintaining air bag 2232.
In some possible embodiments, the determining the preset time period for which the rotating device 1 is kept at the current working position according to the first time period and the number of the positioning and pressure maintaining devices 2 comprises:
acquiring a first stop duration of the positioning and pressure maintaining device 2 when the positioning and pressure maintaining device stays at the alignment station; the stopping time lengths of the positioning and pressure maintaining devices 2 are equal after the positioning and pressure maintaining devices rotate by preset angles;
when the first stop duration is 0, subtracting 1 from the number of the positioning and pressure maintaining devices 2 to obtain the pressure maintaining times;
when the first stop duration is not 0, subtracting 2 from the number of the positioning and pressure maintaining devices 2 to obtain the pressure maintaining times;
and obtaining the preset time length of the rotating device 1 kept at the current station according to the first time length divided by the pressure maintaining times.
In some possible embodiments, m is used to denote the number of said positioning and pressure-holding devices 2, n is used to denote a preset angle, t1 is used to denote a first time period, t2 is used to denote a preset time period, t3 is used to denote a first stop time period, and a is used to denote the number of pressure-holding times; the specific method comprises the following steps:
acquiring the number m of the positioning and pressure maintaining devices 2;
determining a preset angle n of each rotation of the rotating device 1 according to the number m of the positioning and pressure maintaining devices 2;
specifically, dividing 360 ° by the number m of the positioning and pressure maintaining devices 2 to obtain a preset angle n of each rotation of the rotating device 1;
acquiring a first time t1 for the pressure maintaining component 223 to maintain the pressure of the flat cable 6;
determining a preset time period t2 for keeping the rotating device 1 at the current station according to the first time period t1 and the number m of the positioning and pressure maintaining devices 2;
specifically, a first stop time t3 when the positioning and pressure maintaining device 2 stays at the alignment station is obtained;
when the first stop time period t3 is 0, subtracting 1 from the number m of the positioning and pressure maintaining devices 2 to obtain a pressure maintaining time a;
when the first stop time t3 is not 0, subtracting 2 from the number m of the positioning and pressure maintaining devices 2 to obtain the pressure maintaining times a;
dividing the first time length t1 by the pressure maintaining times a to obtain a preset time length t2 for keeping the rotating device 1 at the current station;
controlling the positioning and pressure maintaining device 2 to position the earphone shell 5 at a feeding and discharging station;
controlling the pressure maintaining assembly 223 to maintain the cable 6 on the earphone housing 5 placed on the first positioning assembly 212 for a first time period t 1;
after the first time length t1, the rotating device 1 is controlled to rotate by a preset angle n to the feeding and discharging station.
In other possible embodiments, when the number of positioning and pressure-maintaining devices 2 is 6, the method comprises:
acquiring the number of the positioning and pressure maintaining devices 2;
determining a preset angle of each rotation of the rotating device 1 according to the number of the positioning and pressure maintaining devices 2;
determining the preset angle to be 60 degrees;
acquiring a first time length for the pressure maintaining component 223 to maintain the pressure of the flat cable 6;
determining the preset time length for keeping the rotating device 1 at the current station according to the first time length and the preset angle;
controlling the positioning and pressure maintaining device 2 to position the earphone shell 5 at a feeding and discharging station;
adjusting the position between the positioning mechanism 21 and the heating and pressure maintaining mechanism 22 so that the heating and pressure maintaining mechanism can maintain the pressure of the flat cable 6 in the earphone housing 5, and controlling the rotating disc 11 to rotate for 60 degrees after a preset time length;
controlling the heating and pressure maintaining mechanism 22 to carry out hot pressing on the flat cable 6 in the earphone shell 5, and controlling the rotating disc 11 to rotate for 60 degrees after a preset time;
controlling the heating and pressure maintaining mechanism 22 to carry out hot pressing on the flat cable 6 in the earphone shell 5, and controlling the rotating disc 11 to rotate for 60 degrees after a preset time;
controlling the heating and pressure maintaining mechanism 22 to carry out hot pressing on the flat cable 6 in the earphone shell 5, and controlling the rotating disc 11 to rotate for 60 degrees after a preset time;
counting the hot pressing time of the heating and pressure maintaining mechanism 22 for carrying out hot pressing on the flat cable 6 in the earphone shell 5;
and if the hot pressing time length is equal to the first time length, controlling the rotating device 1 to rotate for 60 degrees to the feeding and discharging station.
An embodiment of the present invention further provides a server, where the server includes a processor and a memory, where the memory stores at least one instruction, at least one program, a code set, or an instruction set, and the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by the processor to implement the pressure maintaining method applied to the earphone shell, provided by the above method embodiment.
The memory may be used to store software programs and modules, and the processor may execute various functional applications and data processing by operating the software programs and modules stored in the memory. The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system, application programs needed by functions and the like; the storage data area may store data created according to use of the device, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory may also include a memory controller to provide the processor access to the memory.
Embodiments of the present invention further provide a storage medium, where the storage medium may be disposed in a server to store at least one instruction, at least one program, a code set, or a set of instructions related to implementing a pressure maintaining method applied to an earphone shell in the method embodiments, and the at least one instruction, the at least one program, the code set, or the set of instructions are loaded and executed by the processor to implement the pressure maintaining method applied to an earphone shell provided in the method embodiments.
Alternatively, in this embodiment, the storage medium may be located in at least one network server of a plurality of network servers of a computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Although the present invention has been described by way of preferred embodiments, the present invention is not limited to the embodiments described herein, and various changes and modifications may be made without departing from the scope of the present invention.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above can be combined with each other without conflict.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (9)
1. A pressure maintaining device for maintaining pressure of a flat cable on a headset shell is characterized by comprising a rotating device (1), a mounting seat (3) and at least three positioning pressure maintaining devices (2);
a feeding and discharging station and an alignment station are arranged on the mounting seat (3), and the feeding and discharging station is relatively fixed with the mounting seat (3); an alignment device (4) is arranged on the alignment station, and the alignment device (4) is used for acquiring position information of the earphone shell (5) and position information of the flat cable (6);
the rotating device (1) is arranged on the mounting seat (3), and the rotating device (1) comprises a rotating disc (11) and a driving mechanism; the at least three positioning and pressure maintaining devices (2) are uniformly arranged on the rotating disc (11) at intervals along the circumferential direction, and the driving mechanism can drive the rotating disc (11) to rotate so as to drive the positioning and pressure maintaining devices (2) to rotate around the axis of the rotating disc (11);
the positioning and pressure maintaining device (2) comprises a positioning mechanism (21) and a heating and pressure maintaining mechanism (22) which is arranged correspondingly to the positioning mechanism;
the positioning mechanism (21) comprises a first positioning component (212), and the first positioning component (212) is used for accommodating and positioning the earphone shell (5);
the heating and pressure maintaining mechanism (22) comprises a first driving component (221), a first heating component (222) and a pressure maintaining component (223), the first heating component (222) is used for heating the pressure maintaining component (223), the first driving component (221) can drive the pressure maintaining component (223) to move towards the first positioning component (212) and abut against a flat cable (6) installed on the earphone shell (5), and then the flat cable (6) is subjected to pressure maintaining through the pressure maintaining component (223).
2. A pressure maintaining device for maintaining pressure on a flat cable on a shell of an earphone according to claim 1, further comprising a controller electrically connected with the positioning and pressure maintaining device (2) and the aligning device (4), respectively;
the controller is used for acquiring the position information of the earphone shell (5) and the position information of the flat cable (6), and controlling the position of the positioning and pressure maintaining device (2) according to the position information of the earphone shell (5) and the position information of the flat cable (6);
the controller is used for controlling the positioning and pressure maintaining device (2) to maintain pressure of the inner flat cable (6) of the earphone shell (5).
3. A pressure maintaining apparatus for maintaining pressure on a feed line on an earphone housing according to claim 1, wherein the drive mechanism comprises a second drive assembly (12) and a gas-electric slip ring assembly;
the gas-electric slip ring assembly is fixedly connected with the rotating disc (11), and the gas-electric slip ring assembly and the second driving assembly (12) are arranged on the same side of the rotating disc (11);
the second driving assembly (12) is used for driving the rotating disc (11) to rotate around the axis of the rotating disc (11) so as to adjust the position of the positioning and pressure maintaining device (2);
the gas-electric slip ring assembly is also electrically connected with the second driving assembly (12) so that the gas-electric slip ring assembly can provide electric energy for the second driving assembly (12).
4. A pressure maintaining device for accumulating pressure on a feed line of a headphone housing according to claim 1, characterized in that the positioning mechanism (21) comprises a third drive assembly (211) and a second positioning assembly (213);
the third driving assembly (211) can drive the second positioning assembly (213) to move towards the first positioning assembly (212), so that the second positioning assembly (213) can limit the earphone shell (5) arranged on the first positioning assembly (212).
5. The pressure maintaining device for line pressure maintaining on a casing of an earphone according to claim 4, wherein the first positioning assembly (212) comprises a positioning member (2121) and a first heating member (2122), the first heating member (2122) being provided on the positioning member (2121); the positioning piece (2121) is provided with a positioning groove (21211) for positioning the earphone shell (5);
the second positioning assembly comprises second heating elements (2131), the second heating elements (2131) and the first heating elements (2122) are arranged in a one-to-one correspondence mode, accommodating holes are formed after the second heating elements (2131) are abutted to the first heating elements (2122), and the accommodating holes are used for accommodating parts of the earphone shell (5).
6. The pressure maintaining device for line pressure maintaining on the shell of the earphone as claimed in claim 5, wherein the first heating element (2122) and the second heating element (2131) are both block-shaped structures;
the first heating element (2122) is provided with a first groove (2123), the second heating element (2131) is provided with a second groove (2132), and after the first heating element (2122) is abutted to the second heating element (2131), the first groove (2123) and the second groove (2132) form the accommodating hole.
7. A pressure maintaining device for spooling pressure on a headphone housing according to claim 6, characterized in that the heating and pressure maintaining mechanism (22) further comprises a mounting component (224) and a pressure relief component (225);
the pressure relief assembly (225) can relieve pressure to the pressure maintaining assembly (223), the pressure relief assembly (225), the first heating assembly (222) and the pressure maintaining assembly (223) are fixedly connected with the mounting assembly (224), the mounting assembly (224) is connected with the first driving assembly (221), and the first driving assembly (221) can drive the mounting assembly (224) to move towards the positioning groove (21211).
8. A pressure maintaining device for line laying pressure maintaining on a headphone housing according to claim 1, characterized in that the number of the positioning and pressure maintaining devices (2) is six, and six positioning and pressure maintaining devices (2) are evenly arranged on the rotating disc (11) at intervals.
9. A pressure maintaining method applied to a headphone housing, characterized in that the pressure maintaining device for maintaining pressure on a cable of a headphone housing according to any one of claims 1 to 8 is applied, the method comprising:
acquiring the number of the positioning and pressure maintaining devices (2);
determining a preset angle of each rotation of the rotating device (1) according to the number of the positioning and pressure maintaining devices (2);
acquiring a first time length for the pressure maintaining component (223) to maintain the pressure of the flat cable (6);
determining the preset time length for keeping the rotating device (1) at the current station according to the first time length and the number of the positioning and pressure maintaining devices (2);
controlling the positioning and pressure maintaining device (2) to position the earphone shell (5) at a feeding and discharging station;
controlling the pressure maintaining component (223) to maintain the pressure of the flat cable (6) on the earphone shell (5) of the first positioning component (212) for a first time period;
after the first time period, the rotating device (1) is controlled to rotate by a preset angle to the feeding and discharging station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111133998.9A CN113927533B (en) | 2021-09-27 | 2021-09-27 | Pressure maintaining equipment and method for maintaining pressure of flat cable on earphone shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111133998.9A CN113927533B (en) | 2021-09-27 | 2021-09-27 | Pressure maintaining equipment and method for maintaining pressure of flat cable on earphone shell |
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| CN113927533A CN113927533A (en) | 2022-01-14 |
| CN113927533B true CN113927533B (en) | 2022-07-08 |
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| CN113858110B (en) * | 2021-09-27 | 2022-05-27 | 苏州佳祺仕信息科技有限公司 | Pressure maintaining device and pressure maintaining equipment for assembly of earphone shell flat cable |
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| CN113927533A (en) | 2022-01-14 |
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