CN203590462U - Voice box assembly-line equipment system - Google Patents
Voice box assembly-line equipment system Download PDFInfo
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- CN203590462U CN203590462U CN201320822567.8U CN201320822567U CN203590462U CN 203590462 U CN203590462 U CN 203590462U CN 201320822567 U CN201320822567 U CN 201320822567U CN 203590462 U CN203590462 U CN 203590462U
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- sheet material
- conveyer belt
- audio amplifier
- equipment system
- feeding chute
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Abstract
The utility model discloses a voice box assembly-line equipment system which comprises a board cutter (1), a cutoff device (2), post-treatment equipment (4) which is arranged on a first conveyer belt (3) and used for plane processing of small boards and an assembly line (5). A feed sliding chute (6) is arranged between a discharge hole of the board cutter (1) and a feed hole of the cutoff device (2). The feed sliding chute (6) is provided with a pushing mechanism (7) for pushing elongated boards. A first manipulator (8) is disposed between a discharge hole of the cutoff device (2) and a loading end (3.1) of the first conveyer belt (3). A second manipulator (9) is arranged between the blanking end (3.2) of the first conveyer belt (3) and a loading end of the assembly line (5). By the structure of the system, one-step molding of voice box manufacturing from a whole board to assembling can be realized, thus avoiding carrying and manual operations during processes therebetween. Automatic production is realized. Production efficiency and product consistency are raised.
Description
Technical field
The utility model relates to the technical field that audio amplifier is manufactured, and relates to particularly audio amplifier pipelining equipment system.
Background technology
In the production process of audio amplifier, the more employing plank of material of its shell, and the required casing of loudspeaker box of a monoblock plank processing cost industry is often needed first a monoblock plank to be cut into some strip planks, then cut off into some fritter planks, make again this fritter plank process the operations such as decorative pattern through on fluting, boring and plate face, finally manually some planks that machine are assembled into casing.In a process, between each operation, all need a dead lift and material loading blanking repeatedly, not only make that working (machining) efficiency is low, cost of labor is large, homogeneity of product is poor, and in handling process, easily cause the damage of plank, thereby cause scrapping.
Summary of the invention
The technical problems to be solved in the utility model is, thereby a kind of reducing cost of labor, avoiding people to cause plank damage and working (machining) efficiency is high, the audio amplifier pipelining equipment system of high conformity of repeatedly carrying without personnel is provided.
Technical solution of the present utility model is, provide a kind of audio amplifier pipelining equipment system with following structure: it comprises for monoblock sheet material being cut into the plate shearing machine of some strip sheet materials, for strip sheet material being cut into the shearing device of some fritters and being located on the first conveyer belt this fritter sheet material is carried out to the equipment for after-treatment of plane machining and the assembly line that the sheet material machining is assembled, between the discharging opening of described plate shearing machine and the charging aperture of shearing device, be provided with feeding chute, described feeding chute is provided with the pushing mechanism that promotes strip sheet material, between the material loading end of the discharging opening of described shearing device and the first conveyer belt, be provided with the first manipulator, between the material loading end of the discharging end of described the first conveyer belt and assembly line, be provided with the second manipulator.
The course of processing of its streamline is in simple terms: the feeding port to plate shearing machine by monoblock sheet material horizontal positioned first, by plate shearing machine, cut into some strip sheet material, described strip sheet material enters in feeding chute from the discharging opening of plate shearing machine, by the pushing mechanism on feeding chute, ordering about strip plank again slides along the length direction of feeding chute, by shearing device, this strip sheet material is cut into again to the fritter sheet material of Len req, then by the first manipulator, this fritter sheet material is transported to the material loading end on the first conveyer belt successively, by the first conveyer belt process equipment for after-treatment, finally by the second manipulator, the sheet material that is positioned at the machine-shaping on the discharging end of the first conveyer belt is transported on assembly line, thus by manually some sheet material being assembled into whole sound box.Certainly, also can on described assembly line, complete the work of installing electronic elements on sound box.Thus, complete the streamline processing of whole audio amplifier.
As a kind of improvement of the present utility model, described plate shearing machine comprises frame, in this frame, be positioned at the below of entire plate material charging place horizontal plane along being provided with some guide plates perpendicular to feedstock direction, described guide plate is provided with some pulleys, the top that is positioned at plate monoblock sheet material charging place horizontal plane in described frame is along being provided with by the first motor-driven initiative roll shaft perpendicular to feedstock direction, the one end that is positioned at its discharging opening in this frame be provided with along perpendicular to feedstock direction, do slidably reciprocate monoblock sheet material is cut into the first cutting knife of strip sheet material.
Further, in described frame, between its charging aperture and guide plate, be provided with along the second cutting knife that moves back and forth excision sheet material stub bar perpendicular to feedstock direction, described frame be provided with by cylinder, driven for compressing the briquetting of sheet material, the piston rod of described briquetting and cylinder is fixed.By briquetting, compress monoblock sheet material, by the second cutting knife, the stub bar of sheet material is excised, make thus the width dimensions of first strip sheet material of monoblock sheet material be guaranteed.
As another kind of improvement of the present utility model, described pushing mechanism refers to that a side relative with plate shearing machine discharging opening on feeding chute is provided with baffle plate, this baffle plate is provided with the ball-screw paralleling with feeding chute, in described feeding chute, be provided with the push pedal being slidably matched, described push pedal is fixedly connected with by connecting plate with ball-screw.By push pedal, can promote the feeding of strip sheet material and cut off, its feed speed and length are precisely controlled.
Further, described shearing device comprises that the side that the 3rd cutting knife deviates from feeding chute is provided with the clamp by air cylinder driven along the 3rd cutting knife moving back and forth perpendicular to feeding chute direction.By clamp can guarantee shearing device in cutting-off process or cut off after this fritter sheet material move freely, guarantee the precision of section, simultaneously also for subsequent handling provides accurate location.
As another kind of improvement of the present utility model, described the first manipulator comprise vertical direction setting main shaft, be located at rotating disk and some Pneumatic suction cups on described main shaft, described main shaft is driven around self axis and is rotated by motor, described whole Pneumatic suction cups are located at the circumferencial direction of described rotating disk uniformly, and this Pneumatic suction cup is all connected with tracheae by valve.By a plurality of manipulators that rotate in a circumferential direction, can realize the carrying fritter sheet material of continuous high-efficient, and by the stud that holds of Pneumatic suction cup negative pressure of vacuum, avoid the damage to sheet material.
As a kind of preferred, described the first conveyer belt is annular conveyer belt.The first conveyer belt of annular can be realized continuous production, and is located at the practicality that fixture on the first conveyer belt can be continuous, need not manually carry out the carrying of fixture.
As another kind of improvement of the present utility model, described equipment for after-treatment comprises along the direction of motion of the first conveyer belt successively tactic forcing press, Digit Control Machine Tool, drilling machine and groover.
Adopt above structure, the utility model compared with prior art has the following advantages: 1 whole audio amplifier from monoblock sheet material to machine-shaping, only need an a dead lift material loading, therefore reduced the damage of colliding with that operating personnel carry the semifinished sheet causing between each operation, also reduce the input of human resources simultaneously, saved cost of labor, 2 owing to having reduced manually the middle manual operation of repeatedly material loading blanking, therefore sheet material processing realizes full-automatic, mechanization, thereby has well guaranteed the consistency of processing.In 3 line flow procedures between each operation without pause, realize continuously and producing, therefore there is not the wait residence time between personnel's each operation that repeatedly material loading blanking produces, so its production efficiency is inevitable, higher than each operation of prior art, process respectively.
Accompanying drawing explanation
Fig. 1 is the structural representation of audio amplifier pipelining equipment system.
Fig. 2 is the half sectional view of " A " direction in Fig. 1.
Shown in figure: 1, plate shearing machine, 1.1, frame, 1.2, guide plate, 1.2.1, pulley, 1.3, initiative roll shaft, 1.3.1, the first motor, 1.4, the first cutting knife, 1.5, the second cutting knife, 1.6, briquetting, 2, shearing device, 2.1, the 3rd cutting knife, 2.2, clamp, 3, the first conveyer belt, 4, equipment for after-treatment, 4.1, forcing press, 4.2, Digit Control Machine Tool, 4.3, drilling machine, 4.4, groover, 5, assembly line, 6, feeding chute, 6.1, baffle plate, 7, pushing mechanism, 7.1, ball-screw, 7.2, push pedal, 7.3, connecting plate, 8, the first manipulator, 8.1, main shaft, 8.2, rotating disk, 8.3, Pneumatic suction cup, 9, the second manipulator, 10, lifting platform.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, audio amplifier pipelining equipment system of the present utility model, comprise for monoblock sheet material being cut into the plate shearing machine 1 of some strip sheet materials, for strip sheet material being cut into the shearing device 2 of some fritters and being located on the first conveyer belt 3 this fritter sheet material is carried out to the equipment for after-treatment 4 of plane machining and the assembly line 5 that the sheet material machining is assembled, between the charging aperture of the discharging opening of described plate shearing machine 1 and shearing device 2, be provided with feeding chute 6, described feeding chute 6 is provided with the pushing mechanism 7 that promotes strip sheet material, between the material loading end 3.1 of the discharging opening of described shearing device 2 and the first conveyer belt 3, be provided with the first manipulator 8, between the discharging end 3.2 of described the first conveyer belt 3 and the material loading end of assembly line 5, be provided with the second manipulator 9.
Described plate shearing machine 1 comprises frame 1.1, in this frame 1.1, be positioned at the below of entire plate material charging place horizontal plane along being provided with some guide plates 1.2 perpendicular to feedstock direction, described guide plate 1.2 is provided with some pulley 1.2.1, in described frame 1.1, be positioned at the top of entire plate material charging place horizontal plane along be provided with the initiative roll shaft 1.3 being driven by the first motor 1.3.1 perpendicular to feedstock direction, the one end that is positioned at its discharging opening in this frame 1.1 is provided with along making perpendicular to feedstock direction the first cutting knife 1.4 that monoblock sheet material is cut into strip sheet material slidably reciprocating.The horizontal plane of above-mentioned indication refers to that monoblock sheet material is placed into the horizontal plane at the plate face place in plate shearing machine 1, certainly, sheet material has thickness, and therefore described guide plate is located at the below of the lower surface of monoblock sheet material, 1.3 tops that are positioned at the upper surface of monoblock sheet material of described initiative roll shaft.The pulley 1.2.1 that makes particularly described some guide plates be arrangeding in parallel 1.2 and be located on guide plate 1.2 supports described monoblock sheet material, and this monoblock sheet material can well be moved along feedstock direction, between itself and pulley, only have rolling friction, thereby reduce frictional force.Described some initiative roll shafts 1.3 are located at the top of monoblock sheet material and the outer circle wall of roll shaft are pressed on the upper surface of described monoblock sheet material, drive initiative roll shaft 1.3 to roll, thereby drive monoblock sheet material to move by skin-friction force by the first motor 1.3.1.One end in the discharging of described plate shearing machine 1 is provided with the first cutting knife 1.4, the driven by motor High Rotation Speed that described the first cutting knife 1.4 is carried by it, and described the first cutting knife 1.4 and motor are realized displacement by a leading screw screw structure, be that described the first cutting knife 1.4 and motor are all installed on described leading screw, the two ends of described screw mandrel are fixed in described frame 1.1 and are positioned at, and make the axis direction of described screw mandrel parallel with described guide plate 1.2.The also High Rotation Speed that moves around by the first cutting knife 1.4 cuts into this monoblock sheet material the strip sheet material of required width thus.Be worth mentioning, between described guide plate 1.2, leave interval, can, so that the chip in stub bar material tail and cutting process drops, reduce the accumulation on plate shearing machine 1, impact processing.In addition, the below of described guide plate 1.2 arranges waste material basket and collects above-mentioned stub bar material tail and chip again.
In addition, in frame 1.1, between its charging aperture and guide plate 1.2, be provided with along the second cutting knife 1.5 that moves back and forth excision sheet material stub bar perpendicular to feedstock direction, described frame be provided with by cylinder, driven for compressing the briquetting 1.6 of sheet material, described briquetting 1.6 is fixed with the piston rod of cylinder.Before described the second cutting knife 1.5 is located at these whole guide plates 1.2, its Nomenclature Composition and Structure of Complexes is identical with above-mentioned the first cutting knife 1.4.When entering plate shearing machine 1, first stub bar is excised by the second cutting knife 1.5 monoblock sheet material, make to drop in waste material basket its gap between guide plate 1.2, avoid this stub bar to drop in the feeding chute 6 of next operation, affect the precision of following process.Because when 1.4 pairs of monoblock sheet materials of described the first cutting knife excise stub bar, this stub bar is positioned at feeding chute 6 one sides, the right side shown in figure namely, so it easily drops in feeding chute 6, and can between guide plate 1.2, not drop.Certainly, during by 1.5 pairs of stub bar excisions of the second cutting knife, described monoblock sheet material is not also pushed down spacing by initiative roll shaft 1.3, therefore need the fixing described monoblock sheet material of a clamping fixture, be convenient to the second cutting knife 1.5 work excision stub bars, by 1.6 pairs of monoblock sheet materials of a briquetting being driven by cylinder are set, compress thus.Just as described in Figure, described briquetting 1.6 vertical directions are located at described monoblock sheet material top.From Fig. 2, be not difficult to find out in addition, described briquetting 1.6 vertical directions and described the second cutting knife 1.5 are not conllinear, it is the left side that described briquetting 1.6 is positioned at described the second cutting knife 1.5, thereby extend piston rod in cylinder operation, make to drive briquetting 1.6 to compress monoblock sheet material, make to be positioned at the second cutting knife 1.5 excision stub bars on briquetting 1.6 right sides.
Described pushing mechanism 7 refers to that a side relative with plate shearing machine 1 discharging opening on feeding chute 6 is provided with baffle plate 6.1, this baffle plate 6.1 is provided with the ball-screw 7.1 paralleling with feeding chute 6, in described feeding chute, be provided with the push pedal 7.2 being slidably matched, described push pedal 7.2 is fixedly connected with by connecting plate 7.3 with ball-screw 7.1.Specifically, at the discharging opening of described plate shearing machine 1, a feeding chute 6 consistent with the strip sheet material length direction of discharging is set, the short transverse of certain described feeding chute can be lower than the discharging opening of described plate shearing machine 1.Between the two, by a gradient slide plate, connect, and be provided with for blocking downslide strip sheet material and make it just drop to the baffle plate 6.1 in sample presentation chute 6 in the side that deviates from plate shearing machine 1 discharging opening of described feeding chute 6.In described sample presentation chute 6, be provided with in addition the push pedal 7.2 that can slidably reciprocate, for withstanding one end of strip sheet material, its shearing device 2 along feeding chute 6 towards next operation moved.This push pedal 7.2 is fixedly connected with the ball-screw 7.1 of being located on baffle plate 6.1 by connecting plate 7.3.
Described shearing device 2 comprises that a side that deviates from feeding chute 6 along the 3rd cutting knife 2.1, the three cutting knifes 2.1 that move back and forth perpendicular to feeding chute 6 directions is provided with the clamp 2.2 by air cylinder driven.As shown in Figure 1, this clamp is comprised of two of left and right, and the clamp of this left and right sides is fixed with the piston rod of cylinder separately respectively.Certainly, described the 3rd cutting knife 2.1 is inevitable by its corresponding driven by motor, is also useful on the driving mechanism that drives the 3rd cutting knife 2.1 to move, and this is all identical with the first above-mentioned cutting knife 1.4, at this, does not just repeat.
Described the first manipulator 8 comprise vertical direction setting main shaft 8.1, be located at rotating disk 8.2 and some Pneumatic suction cups 8.3 on described main shaft 8.1, described main shaft 8.1 is driven around self axis and is rotated by motor, described whole Pneumatic suction cups 8.3 are located at the circumferencial direction of described rotating disk 8.2 uniformly, and this Pneumatic suction cup 8.3 is all connected with tracheae by valve.Particularly, the axis of described rotating disk 8.2 is provided with installing hole, described rotating disk 8.2 is placed on described main shaft and fixes, and the rotating disk 8.2 that rotarily drives by main shaft 8.1 rotates around its axis thus, realizes thus the Pneumatic suction cup 8.3 of being located on its circumference and realizes rotation.And the operation principle of described Pneumatic suction cup is by the air-breathing generation negative pressure on sucker, hold product surface, by rotating disk 8.2, be transported on the first conveyer belt 3 again. as a kind of preferred, between described rotating disk 8.2 and main shaft 8.1, can set up one for regulating the adjusting device of rotating disk 8.3 height, can increase packing ring and realize highly adjusting, also can, by a lifting platform or travel(l)ing rest, drive whole main shaft 8.1 to raise.
Described the first conveyer belt 3 is annular conveyer belt, and described equipment for after-treatment 4 comprises along the direction of motion of the first conveyer belt 3 successively tactic forcing press 4.1, Digit Control Machine Tool 4.2, drilling machine 4.3 and groover 4.4.Above-mentioned whole equipment for after-treatment is located at the side of the first conveyer belt 3.Its processing mode can be mechanical arm by separately by the workpiece handling on the first conveyer belt 3 to processing on equipment separately, after to be processed completing, by mechanical arm, workpiece is sent back on the first conveyer belt 3 again, complete successively the processing of whole postprocessing working procedures.
Finally, it is worth mentioning that, due to the described monoblock sheet material sheet material of thin slice often, therefore once carry that multi-sheets is stacking often puts, along with feeding process continues to carry out, the easy taking and placing of sheet material operating personnel in higher position, and continuing along with feeding process, the sheet material of subaerial lower position, often needs operating personnel to bend over to lift, and has increased operating personnel's working strength.So, in the material loading region of plate shearing machine 1 of the present utility model, a lifting platform 10 can be set, accommodating sheet material to be processed on described lifting platform 10, height by lifting platform 10 is controlled, can realize the charging that whole sheet material is all equal altitudes, make operating personnel more laborsaving, also improved production efficiency simultaneously.
Certainly, in order to realize automatic assembly line, produce, the utility model must need inductor and control system, and all cylinders of mentioning in the utility model, motor, valve and the first conveyer belt 3 are all electrically connected to control system.
Operation principle of the present utility model is such: one end of first monoblock sheet material being located to the charging aperture of described plate shearing machine 1, cylinder drives briquetting 1.6 to press down, the second cutting knife 1.5 work excision stub bars, make to drop the gap of stub bar between guide plate, then described monoblock sheet material is driven and is advanced by initiative roll shaft 1.3 roll-in, by the first cutting knife 1.4, completes the operation that cuts into strip sheet material.Described strip sheet material is slipped in feeding chute 6, now push pedal 7.2 work, be resisted against one end of described strip sheet material, make it towards shearing device 2 place direction chargings, described clamp work subsequently clamps described strip sheet material, the 3rd cutting knife 2.1 side-to-side movements of described shearing device 2, complete cut-out work simultaneously.Now the first manipulator work, its rotating disk 8.2 drives Pneumatic suction cup 8.3 to rotate to sheet material top, suction by Pneumatic suction cup 8.3 holds sheet material, and be transported on the first conveyer belt 3, by the first conveyer belt 3, through the armamentarium of equipment for after-treatment 4, process successively thus, last by the second manipulator, the sheet material machining is grabbed to the material loading end of assembly line 5 from the first conveyer belt 3 again, on assembly line 5, by operative employee, the sheet material machining is assembled into the audio amplifier of finished product, and some electronic components are installed on described audio amplifier, complete the production assembling of whole audio amplifier.
The foregoing is only preferred embodiment of the present utility model, not for limiting protection range of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (8)
1. an audio amplifier pipelining equipment system, it is characterized in that: it comprises for monoblock sheet material being cut into the plate shearing machine (1) of some strip sheet materials, for strip sheet material being cut into the shearing device (2) of some fritters and being located at the first conveyer belt (3) and above this fritter sheet material being carried out to the equipment for after-treatment (4) of plane machining and the assembly line (5) that the sheet material machining is assembled, between the charging aperture of the discharging opening of described plate shearing machine (1) and shearing device (2), be provided with feeding chute (6), described feeding chute (6) is provided with the pushing mechanism (7) that promotes strip sheet material, between the material loading end (3.1) of the discharging opening of described shearing device (2) and the first conveyer belt (3), be provided with the first manipulator (8), between the discharging end (3.2) of described the first conveyer belt (3) and the material loading end of assembly line (5), be provided with the second manipulator (9).
2. audio amplifier pipelining equipment system according to claim 1, it is characterized in that: described plate shearing machine (1) comprises frame (1.1), in this frame (1.1), be positioned at the below of entire plate material charging place horizontal plane along being provided with some guide plates (1.2) perpendicular to feedstock direction, described guide plate (1.2) is provided with some pulleys (1.2.1), in described frame (1.1), be positioned at the top of entire plate material charging place horizontal plane along be provided with the initiative roll shaft (1.3) being driven by the first motor (1.3.1) perpendicular to feedstock direction, the one end that is positioned at its discharging opening in this frame (1.1) is provided with along making perpendicular to feedstock direction the first cutting knife (1.4) that monoblock sheet material is cut into strip sheet material slidably reciprocating.
3. audio amplifier pipelining equipment system according to claim 2, it is characterized in that: in frame (1.1), be positioned between its charging aperture and guide plate (1.2) and be provided with along the second cutting knife (1.5) that moves back and forth excision sheet material stub bar perpendicular to feedstock direction, described frame be provided with by cylinder, driven for compressing the briquetting (1.6) of sheet material, the piston rod of described briquetting (1.6) and cylinder is fixed.
4. audio amplifier pipelining equipment system according to claim 3, it is characterized in that: described pushing mechanism (7) refers to that the upper side relative with plate shearing machine (1) discharging opening of feeding chute (6) is provided with baffle plate (6.1), this baffle plate (6.1) is provided with the ball-screw (7.1) paralleling with feeding chute (6), in described feeding chute, be provided with the push pedal (7.2) being slidably matched, described push pedal (7.2) is fixedly connected with by connecting plate (7.3) with ball-screw (7.1).
5. audio amplifier pipelining equipment system according to claim 4, it is characterized in that: described shearing device (2) comprises that the side that the 3rd cutting knife (2.1) deviates from feeding chute (6) is provided with the clamp (2.2) by air cylinder driven along the 3rd cutting knife (2.1) moving back and forth perpendicular to feeding chute (6) direction.
6. audio amplifier pipelining equipment system according to claim 5, it is characterized in that: described the first manipulator (8) comprises main shaft (8.1) that vertical direction arranges, is located at rotating disk (8.2) and some Pneumatic suction cups (8.3) on described main shaft (8.1), described main shaft (8.1) is driven around self axis and is rotated by motor, described whole Pneumatic suction cups (8.3) are located at the circumferencial direction of described rotating disk (8.2) uniformly, and this Pneumatic suction cup (8.3) is all connected with tracheae by valve.
7. audio amplifier pipelining equipment system according to claim 6, is characterized in that: described the first conveyer belt (3) is annular conveyer belt.
8. audio amplifier pipelining equipment system according to claim 7, is characterized in that: described equipment for after-treatment (4) comprises along the direction of motion of the first conveyer belt (3) successively tactic forcing press (4.1), Digit Control Machine Tool (4.2), drilling machine (4.3) and groover (4.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320822567.8U CN203590462U (en) | 2013-12-13 | 2013-12-13 | Voice box assembly-line equipment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320822567.8U CN203590462U (en) | 2013-12-13 | 2013-12-13 | Voice box assembly-line equipment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590462U true CN203590462U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320822567.8U Expired - Fee Related CN203590462U (en) | 2013-12-13 | 2013-12-13 | Voice box assembly-line equipment system |
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| Country | Link |
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| CN (1) | CN203590462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686581A (en) * | 2013-12-13 | 2014-03-26 | 宁波中荣声学科技有限公司 | Loudspeaker box production line equipment system |
-
2013
- 2013-12-13 CN CN201320822567.8U patent/CN203590462U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686581A (en) * | 2013-12-13 | 2014-03-26 | 宁波中荣声学科技有限公司 | Loudspeaker box production line equipment system |
| CN103686581B (en) * | 2013-12-13 | 2017-01-25 | 宁波中荣声学科技有限公司 | Loudspeaker box production line equipment system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20161213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |