Automatic processing equipment for copper braided wire and application method thereof

文档序号:587644 发布日期:2021-05-25 浏览:12次 中文

阅读说明:本技术 一种用于铜编织线的自动加工设备及其应用方法 (Automatic processing equipment for copper braided wire and application method thereof ) 是由 陈胜伟 于 2021-01-11 设计创作,主要内容包括:本发明涉及铜编织线加工领域,尤其是一种用于铜编织线的自动加工设备及其应用方法,包括上料装置、输料装置、焊接装置、剪切装置、抓取镀锡装置和下料装置,所述上料装置包括第一支撑架、并列设置于第一支撑架的若干升降机构和设置于任一所述升降机构的放置滚轴;任一所述升降机构包括并列垂直设置于第一支撑架的两个第一移动轨道、设置于两个第一移动轨道间的第一移动块和配合第一移动块的第一伸缩电机;所述抓取镀锡装置包括设置于剪切装置输出端的抓取机构、设置于抓取机构下方的镀锡池和配合抓取机构的驱动组件。本发明通过改变抓取装置的结构,替换了后期人力镀锡操作,不仅减少了人力,提高了生产效率,而且提高了设备的灵活性。(The invention relates to the field of copper braided wire processing, in particular to automatic processing equipment for a copper braided wire and an application method thereof, wherein the automatic processing equipment comprises a feeding device, a material conveying device, a welding device, a shearing device, a grabbing tinning device and a discharging device, wherein the feeding device comprises a first support frame, a plurality of lifting mechanisms arranged on the first support frame in parallel and a placing rolling shaft arranged on any one of the lifting mechanisms; any one of the lifting mechanisms comprises two first moving tracks which are vertically arranged on the first support frame in parallel, a first moving block arranged between the two first moving tracks and a first telescopic motor matched with the first moving block; snatch tinning stack including set up in the mechanism of snatching of shearing mechanism output, set up in the tinning bath of snatching the mechanism below and cooperate the drive assembly who snatchs the mechanism. According to the invention, the structure of the gripping device is changed, and the later manual tinning operation is replaced, so that the manpower is reduced, the production efficiency is improved, and the flexibility of the equipment is improved.)

1. The utility model provides an automatic processing equipment for copper braided wire which characterized in that: the device comprises a feeding device, a material conveying device, a welding device, a shearing device, a grabbing tinning device and a discharging device which are sequentially arranged, wherein the feeding device comprises a first support frame, a plurality of lifting mechanisms arranged on the first support frame in parallel and a placing roller arranged on any one of the lifting mechanisms; any one of the lifting mechanisms comprises two first moving tracks which are vertically arranged on the first support frame in parallel, a first moving block arranged between the two first moving tracks and a first telescopic motor matched with the first moving block; snatch tinning stack including set up in the mechanism of snatching of shearing mechanism output, set up in the tinning bath of snatching the mechanism below and cooperate the drive assembly who snatchs the mechanism elevating system, first flexible motor, snatch mechanism, tinning bath and drive assembly and be equipped with the controller.

2. The automatic processing equipment for copper braided wires according to claim 1, characterized in that: the lateral part of the placing roller is horizontally arranged on the lateral surface of the first moving block in a rotatable mode, and two sides of the first moving block are respectively matched with the first moving track to be provided with a moving cavity.

3. The automatic processing equipment for copper braided wires according to claim 2, characterized in that: two first orbital opposite face that removes all is equipped with the elastic component, arbitrary the medial surface cooperation elastic component of removal cavity is equipped with the recess.

4. The automatic processing equipment for copper braided wires according to claim 1, characterized in that: the feeding device comprises a second support frame, a first guide wheel set matched with any roller, a first guide roller arranged at the upper end of the second support frame and a second guide wheel set arranged between the first guide roller and the welding device.

5. The automatic processing equipment for copper braided wires according to claim 4, characterized in that: the second support frame is matched with a door body which is provided with a shell body and a matched shell body, a dust removal device is arranged in the shell body, and the dust removal device is electrically connected with the controller.

6. The automatic processing equipment for copper braided wires according to claim 4, characterized in that: the welding device and the second guide wheel set are provided with a third support frame, a second telescopic motor arranged on the third support frame, a pressing block arranged at the output end of the second telescopic motor and a pressing table arranged below the pressing block, the third support frame is provided with guide groove rails located on two sides of the pressing table, and the second telescopic motor is electrically connected to the controller.

7. The automatic processing equipment for copper braided wires according to claim 1, characterized in that: the driving assembly comprises a rotating motor arranged on the side face of the grabbing mechanism, a vertical conveying mechanism matched with the rotating motor and a horizontal conveying mechanism matched with the vertical conveying mechanism.

8. The automatic processing equipment for copper braided wires according to claim 7, characterized in that: the grabbing mechanism comprises a mounting seat arranged at the output end of the rotating motor, a clamping motor arranged on the side face of the mounting seat and clamping pieces symmetrically arranged at the output end of the clamping motor, and the clamping motor is electrically connected with the controller.

9. The automatic processing equipment for copper braided wires according to claim 1, characterized in that: the blanking device comprises a feeding chute and a collecting box arranged below the feeding chute in a space mode, and the tinning tank is arranged between the feeding chute and the shearing machine.

10. The automatic processing equipment application method according to any one of claims 1 to 9, characterized in that: comprises the following steps of (a) carrying out,

step 1: the paying-off roller provided with the copper braided wire is rolled to the side face of the first support frame, the controller drives the output end of the first telescopic motor to stretch, so that the placing roller is aligned with the placing through hole of the paying-off roller, then the paying-off roller is directly pushed, the paying-off roller can be directly inserted onto the placing roller, and finally the controller respectively drives the output end of the first telescopic motor to drive the first moving block to move to positions with different heights;

step 2: the two copper braided wires are sequentially moved to the welding device and the shearing device through the conveying device, when the welding device welds the copper braided wires, the driving assembly firstly controls the grabbing mechanism to clamp the top ends of the copper braided wires, after the welding device is opened and stops welding, the driving assembly drives the grabbing mechanism to horizontally move, after the copper braided wires are pulled out for a certain distance and stopped, the welding device performs second welding, and meanwhile, the shearing device performs shearing;

and step 3: the clamping mechanism clamps the sheared copper braided wire, the driving assembly drives the clamping mechanism to horizontally move for a certain distance, then the clamping mechanism is driven to rotate downwards for 90 degrees, the copper braided wire is positioned right above the tinning tank, then the clamping mechanism is driven to move downwards, the end part of the copper braided wire is immersed into the tinning tank and then the clamping mechanism is driven to reset upwards, finally the driving assembly drives the clamping mechanism to horizontally move for a certain distance, the copper braided wire is positioned above the blanking device, and the copper braided wire is released and falls into the blanking device;

and 4, step 4: after the driving assembly drives the clamping mechanism to rotate upwards by 90 degrees and reset, the clamping mechanism is driven to horizontally move to clamp the copper braided wire at the shearing device.

Technical Field

The invention relates to the field of copper braided wire processing equipment, in particular to automatic processing equipment for a copper braided wire and an application method thereof.

Background

At present, copper braided wires are widely used in various electrical devices. The copper braided wire is a stranded thin copper wire, when the copper braided wire is used, all the thin copper wires need to be welded into a whole at certain intervals, and grooves are formed in the upper end and the lower end of the welding position due to welding operation. The existing copper braided wire is mostly welded by adopting an upper electrode and a lower electrode of a common electric welding machine, scribed lines are scribed on a welding supporting plate, and the welding operation is carried out by taking the scribed lines on the supporting plate as the standard.

On the market at present, automatic bonding wire cutter's structure is various, but the function is single, when placing the unwrapping wire roller, needs the manual work to carry and places, carries out the unloading back with the copper braided wire after the welding, still need continue to carry out tin-plating work to the copper braided wire through the manpower, and the operation is complicated, and production efficiency is lower, is unsuitable for large-scale production needs.

Disclosure of Invention

The invention aims to solve the technical problems and provides automatic processing equipment convenient for placing and feeding a roller and an application method thereof.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic processing device for copper braided wires comprises a feeding device, a material conveying device, a welding device, a shearing device, a grabbing tinning device and a discharging device which are sequentially arranged, wherein the feeding device comprises a first support frame, a plurality of lifting mechanisms arranged on the first support frame in parallel and a placing roller arranged on any one of the lifting mechanisms; any one of the lifting mechanisms comprises two first moving tracks which are vertically arranged on the first support frame in parallel, a first moving block arranged between the two first moving tracks and a first telescopic motor matched with the first moving block; snatch tinning stack including set up in the mechanism of snatching of shearing mechanism output, set up in the tinning bath of snatching the mechanism below and cooperate the drive assembly who snatchs the mechanism elevating system, first flexible motor, snatch mechanism, tinning bath and drive assembly and be equipped with the controller.

Preferably, the side part of the placing roller is horizontally arranged on the side surface of the first moving block in a rotatable manner, and two sides of the first moving block are respectively provided with a moving cavity in cooperation with the first moving track.

Preferably, the opposite surfaces of the two first moving tracks are provided with elastic parts, and the inner side surface of the moving cavity is provided with a groove in a matching manner with the elastic parts.

Preferably, the feeding device comprises a second support frame, a first guide wheel set matched with any one of the placing rollers, a first guide roller arranged at the upper end of the second support frame, and a second guide wheel set arranged between the first guide roller and the welding device.

Preferably, the second support frame is matched with a door body provided with an outer shell and a matched outer shell, a dust removal device is arranged in the outer shell, and the dust removal device is electrically connected with the controller.

Preferably, a third support frame, a second telescopic motor arranged on the third support frame, a pressing block arranged at the output end of the second telescopic motor and a pressing table arranged below the pressing block are arranged between the welding device and the second guide wheel set, the third support frame is provided with guide groove rails located on two sides of the pressing table, and the second telescopic motor is electrically connected to the controller.

Preferably, the driving assembly comprises a rotating motor arranged on the side surface of the grabbing mechanism, a vertical conveying mechanism matched with the rotating motor and a horizontal conveying mechanism matched with the vertical conveying mechanism.

Preferably, the grabbing mechanism comprises a mounting seat arranged at the output end of the rotating motor, a clamping motor arranged on the side surface of the mounting seat and clamping pieces symmetrically arranged at the output end of the clamping motor, and the clamping motor is electrically connected to the controller.

Preferably, the blanking device comprises a feeding chute and a collecting box arranged below the feeding chute in space, and the tinning tank is arranged between the feeding chute and the shearing machine.

An automatic processing equipment application method for braided wires comprises the following steps,

step 1: the paying-off roller provided with the copper braided wire is rolled to the side face of the first support frame, the controller drives the output end of the first telescopic motor to stretch, so that the placing roller is aligned with the placing through hole of the paying-off roller, then the paying-off roller is directly pushed, the paying-off roller can be directly inserted onto the placing roller, and finally the controller respectively drives the output end of the first telescopic motor to drive the first moving block to move to positions with different heights;

step 2: the two copper braided wires are sequentially moved to the welding device and the shearing device through the conveying device, when the welding device welds the copper braided wires, the driving assembly firstly controls the grabbing mechanism to clamp the top ends of the copper braided wires, after the welding device is opened and stops welding, the driving assembly drives the grabbing mechanism to horizontally move, after the copper braided wires are pulled out for a certain distance and stopped, the welding device performs second welding, and meanwhile, the shearing device performs shearing;

and step 3: the clamping mechanism clamps the sheared copper braided wire, the driving assembly drives the clamping mechanism to horizontally move for a certain distance, then the clamping mechanism is driven to rotate downwards for 90 degrees, the copper braided wire is positioned right above the tinning tank, then the clamping mechanism is driven to move downwards, the end part of the copper braided wire is immersed into the tinning tank and then the clamping mechanism is driven to reset upwards, finally the driving assembly drives the clamping mechanism to horizontally move for a certain distance, the copper braided wire is positioned above the blanking device, and the copper braided wire is released and falls into the blanking device;

and 4, step 4: after the driving assembly drives the clamping mechanism to rotate upwards by 90 degrees and reset, the clamping mechanism is driven to horizontally move to clamp the copper braided wire at the shearing device.

Compared with the prior art, the invention has the beneficial effects that: the feeding device is arranged into an automatically adjustable structure, the paying-off roller is inserted and placed at a high position without manual carrying, the position of the placing roller is adjustable, the position can be adjusted according to the sizes of different diameters of the paying-off roller, and then the placing roller is inserted from the side surface; through the structural change to snatching the mechanism for snatch the mechanism and snatch direct tin-plating operation to copper braided wire tip after shearing copper braided wire, replaced the later stage and carried out tin-plating work to copper braided wire through the manpower again, reduced work step, improved work efficiency.

Drawings

FIG. 1: is an overall perspective view of the invention;

FIG. 2: the structure of the feeding device and the conveying device is partially schematic;

FIG. 3: the structure schematic diagram of a first moving block and a first telescopic motor is shown in the invention;

FIG. 4: the side structure schematic diagram of the grabbing galvanizing device and the blanking device is shown in the invention;

FIG. 5: the invention is a schematic view of a overlooking structure of a grabbing galvanizing device and a blanking device;

in the figure: 1. a pay-off roller; 2. a feeding device; 3. a welding device, 4, a shearing device; 5. a grabbing mechanism; 6. a tinning pool; 7. a drive assembly; 8. a blanking device; 9. the device comprises a first support frame, a lifting mechanism, a first movable track, a first movable block, a second support frame, a first support frame, a lifting mechanism, a first movable motor, a second movable track, a first movable block, a second movable block, a third movable block, a fourth movable block; 15. moving the cavity; 16. a groove; 17. a second support frame; 18. a first guide wheel set; 19. a first guide roller; 20. a second guide wheel set; 21. an outer housing; 22. a door body; 23. 24, a second telescopic motor; 25. a pressing block; 26. a pressing table; 27. guiding a groove rail; 28. a rotating electric machine; 29. a vertical conveying mechanism; 30. a horizontal conveying mechanism; 31. a mounting seat; 32. a clamping motor; 33. a clamping member; 34. a feeding chute; 35. and a collection box.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: an automatic processing device for copper braided wires comprises a feeding device, a material conveying device 2, a welding device 3, a shearing device 4, a grabbing tinning device and a blanking device 8 which are sequentially arranged, wherein the feeding device comprises a first support frame 9, a plurality of lifting mechanisms 10 arranged on the first support frame 9 in parallel and a placing roller 11 shaft arranged on any one lifting mechanism 10; any one of the lifting mechanisms 10 comprises two first moving tracks 12 which are vertically arranged on the first support frame 9 in parallel, a first moving block 13 arranged between the two first moving tracks 12 and a first telescopic motor 14 matched with the first moving block 13; snatch tinning stack including set up in snatching 5 of the mechanism of snatching of 4 outputs of shearing mechanism, set up in snatching the tinning bath 6 of mechanism 5 below and cooperate and snatch the drive assembly 7 of mechanism 5 elevating system 10, first flexible motor 14, snatch mechanism 5, tinning bath 6 and drive assembly 7 and be equipped with the controller.

Copper braided wire is the winding before the welding on unwrapping wire roller 1, and unwrapping wire roller 1 is fixed and is unable to remove on the support frame among the prior art, will change unwrapping wire roller 1 and need rely on the manual work to take off and lay completely, so the volume of unwrapping wire roller 1 can not be too much, otherwise weight is not convenient for change, so under the automatic condition of many processes, need often go to change unwrapping wire roller 1. According to the invention, the first support frame 9 and the placing frame are arranged into two separate structures and are arranged in a matched mode through the first movable guide rail, the placing frame is lifted and lowered through the lifting mechanism 10, when the paying-off roller 1 needs to be replaced, the controller drives the output end of the lifting mechanism 10 to descend, so that the placing frame arranged at the output end moves downwards, the paying-off roller 1 is aligned to the placing frame, then the lifting mechanism 10 drives the paying-off roller 1 to move upwards and move to a working position, the paying-off roller can be replaced without being lifted upwards by manpower, and the weight of the paying-off roller 1 can be set according to the bearable weight of the lifting mechanism 10.

In the invention, the shaft of the placing roller 11 moves up and down through the movement of the first moving block 13 on the first moving track 12, the first telescopic motor 14 drives the first moving block 13 to move, the first telescopic motor 14 has two setting modes, the first mode is that the first telescopic motor is arranged at the lower end or the upper end of the first moving block 13, and the output end of the first telescopic motor is connected with the lower end surface or the upper end surface of the first moving block 13 for driving, so that the length of the first support frame 9 is longer; in the second mode, the first telescopic motor 14 is arranged on the side of the first moving block 13, and the output end of the first telescopic motor is connected to the side surface of the first moving block 13, so that the length of the first supporting frame 9 is not required.

In the invention, the grabbing tinning device is not only used for driving the conveying of the copper braided wire, but also can directly perform tinning work on the end part of the sheared copper braided wire, and then perform blanking after tinning.

The lateral part of the shaft of the placing roller 11 is horizontally arranged on the lateral surface of the first moving block 13 in a rotatable manner, and two sides of the first moving block 13 are respectively provided with a moving cavity 15 in cooperation with the first moving track 12.

In the invention, a first moving block 13 is arranged between two first moving tracks 12, moving cavities 15 on two sides of the first moving block 13 are embedded in the first moving tracks 12, cylindrical guide rails are arranged on two side surfaces of each first moving track 12, and a sliding groove 16 is arranged on the inner side surface of each moving cavity 15 matched with any cylindrical guide rail.

The paying-off roller 1 is sleeved on the shaft of the placing roller 11, if the paying-off roller 1 rotates on the shaft of the placing roller 11, the paying-off roller 1 is unstable and damages the paying-off roller 1, in the invention, the paying-off roller 1 is fixedly arranged on the shaft of the placing roller 11, and the shaft of the placing roller 11 and the paying-off roller 1 integrally rotate through a rotating structure of the shaft of the placing roller 11 and a first moving block 13, so that the blanking work of the copper braided wire is realized.

The opposite surfaces of the two first moving tracks 12 are provided with elastic parts, and the inner side surface of any one of the moving cavities 15 is provided with a groove 16 matched with the elastic parts.

In the invention, the friction force of the contact surfaces of the first moving block 13 and the two first moving tracks 12 is increased, and an elastic piece is arranged to play a role in buffering and stabilizing in the moving process.

The feeding device 2 comprises a second support frame 17, a first guide wheel set 18 matched with any shaft of the placing roller 11, a first guide roller 19 arranged at the upper end of the second support frame 17 and a second guide wheel set 20 arranged between the first guide roller 19 and the welding device 3.

In the present invention, when there are two placing rollers 11, the output ends of the copper braided wires on the two placing rollers 11 are in different directions, so that it is necessary to provide a plurality of guide rollers on the second supporting frame 17 to guide the copper braided wires, respectively, to guide the two copper braided wires to the first guide roller 19 at the same time, and the two copper braided wires enter the second guide roller set 20 through the first guide roller 19, and the second guide roller set 20 is combined again and finally transferred to the welding device 3.

In the invention, the first guide wheel set 18 corresponding to the shaft of the placing roller 11 at the high position is a first roller and a second roller which are arranged up and down, the first guide wheel set corresponding to the shaft of the placing roller 11 which is butted against the shaft of the placing roller is a third roller and a fourth roller which are arranged up and down, the second roller and the fourth roller are respectively output ends, and the directions of the first roller and the fourth roller are opposite, so that the two copper braided wires are prevented from being influenced with each other and finally reach the first guide roller 19 at the same time.

The second support frame 17 is provided with an outer shell 21 and a door body 22 matched with the outer shell 21, a dust removal device is arranged in the outer shell 21, and the dust removal device is electrically connected with the controller.

In the invention, the welding device 3 is used for welding two copper weaves, so that the influence of sundries on the welding on the copper weaves is prevented, and the dust removal device is arranged at the first guide wheel set 18 and can be the prior art, so that the sundries on the copper weaves can be sucked by a blower, and the cleaning effect is achieved; also can set up the technique of similar static edulcoration on the second support frame 17 and carry out the edulcoration, improve welded quality.

A third support frame 23, a second telescopic motor 24 arranged on the third support frame 23, a pressing block 25 arranged at the output end of the second telescopic motor 24 and a pressing table 26 arranged below the pressing block 25 are arranged between the welding device 3 and the second guide wheel set 20, the third support frame 23 is provided with guide groove rails 27 positioned at two sides of the pressing table 26, and the second telescopic motor 24 is electrically connected to the controller.

In the invention, the second telescopic motor 24 is used for movably extruding the welding points by matching with the pressing block 25, so that the surfaces of the welding points of the two copper weaves are smoother, the contact area of the copper weaves in the soft connection is further increased, and the connection strength is enhanced.

The driving assembly 7 comprises a rotating motor 28 arranged on the side surface of the grabbing mechanism 5, a vertical conveying mechanism 29 matched with the rotating motor 28 and a horizontal conveying mechanism 30 matched with the vertical conveying mechanism 29.

In the present invention, the output end of the rotating motor 28 drives the grabbing mechanism 5 to rotate, so that the clamping end of the grabbing mechanism 5 can rotate downward, the structure of the vertical conveying mechanism 29 can be made many, as long as the functions of instantly moving downward and returning upward of the rotating motor 28 and the clamping mechanism as a whole can be realized, and an embodiment is provided: the vertical conveying mechanism 29 comprises a mounting seat 31, a moving guide rail vertically arranged on the side surface of the mounting seat 31 and a telescopic motor arranged at the upper end of the mounting seat 31, the telescopic motor is electrically connected to the controller, a first moving block 13 matched with the moving guide rail is arranged on the side surface of the rotating mechanism, and the output end of the first telescopic motor 14 is connected to the first moving block 13.

The grabbing mechanism 5 comprises a mounting seat 31 arranged at the output end of the rotating motor 28, a clamping motor 32 arranged on the side surface of the mounting seat 31 and clamping pieces 33 symmetrically arranged at the output end of the clamping motor 32, wherein the clamping motor 32 is electrically connected to the controller.

In the invention, the clamping motor 32 drives the two clamping pieces 33 to close and open, so that the copper braided wire is clamped.

The blanking device 8 comprises a feeding chute 34 and a collecting box 35 arranged below the feeding chute 34 in space, and the tinning pond 6 is arranged between the feeding chute 34 and the shearing machine.

In the present invention, the feeding chute 34 of the blanking mechanism is used to introduce the falling copper braided wire into the collection box 35, and the collection box 35 is detachably fixed, which facilitates the replacement of the discharged material.

An application method of automatic processing equipment for braided wires comprises the following steps:

step 1: the paying-off roller 1 provided with the copper braided wire is rolled to the side face of the first support frame 9, the controller drives the output end of the first telescopic motor 14 to stretch, so that the shaft of the placing roller 11 is aligned with the placing through hole of the paying-off roller 1, then the paying-off roller 1 is directly pushed, the paying-off roller 1 can be directly inserted into the shaft of the placing roller 11, and finally the controller respectively drives the output end of the first telescopic motor 14 to drive the first moving block 13 to move to positions with different heights;

step 2: two copper braided wires are sequentially moved to a welding device 3 and a shearing device 4 through a conveying device, when the welding device 3 welds the copper braided wires, a driving component 7 firstly controls a grabbing mechanism 5 to grab the top ends of the copper braided wires, after the welding device 3 is opened and stops welding, the driving component 7 controls the grabbing mechanism 5 to horizontally move, after the copper braided wires are pulled out for a certain distance and stopped, the welding device 3 carries out second welding, and the shearing device 4 carries out shearing;

and step 3: the clamping mechanism clamps the sheared copper braided wire, the driving assembly 7 drives the clamping mechanism to horizontally move for a certain distance, then the clamping mechanism is driven to rotate downwards for 90 degrees, the copper braided wire is positioned right above the tinning pool 6, then the clamping mechanism is driven to move downwards, the end part of the copper braided wire is immersed into the tinning pool 6 and then the clamping mechanism is driven to reset upwards, finally the driving assembly 7 drives the clamping mechanism to horizontally move for a certain distance, the copper braided wire is positioned above the blanking device 8, and the copper braided wire is released and falls into the blanking device 8;

and 4, step 4: after the driving assembly 7 drives the clamping mechanism to rotate upwards by 90 degrees and reset, the clamping mechanism is driven to horizontally move to clamp the copper braided wire at the shearing device 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

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