CN207536690U - Jig retracting device and Wave-soldering device - Google Patents
Jig retracting device and Wave-soldering device Download PDFInfo
- Publication number
- CN207536690U CN207536690U CN201721624376.5U CN201721624376U CN207536690U CN 207536690 U CN207536690 U CN 207536690U CN 201721624376 U CN201721624376 U CN 201721624376U CN 207536690 U CN207536690 U CN 207536690U
- Authority
- CN
- China
- Prior art keywords
- jig
- conveying assembly
- conveying
- conveyer belt
- retracting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Conveyors (AREA)
Abstract
The utility model provides a kind of jig retracting device and Wave-soldering device, is related to conveying equipment technical field, jig retracting device includes:First conveying assembly, the second conveying assembly and third conveying assembly;First conveying assembly is for launching jig, and for taking out jig, the second conveying assembly is used to convey jig between the first conveying assembly and the second conveying assembly third conveying assembly;When third conveying assembly stops, the second conveying assembly, the first conveying assembly can run to convey jig.When third conveying assembly stops, first conveying assembly and the second conveying assembly can continue to operation to convey jig, the dispensing and conveying of jig are not influenced, avoids the influence of the speed of the dispensing of jig and the manual people's taking-up jig of conveying, are conducive to improve the efficiency of jig retracting device.
Description
Technical field
The utility model is related to conveying equipment technical field, more particularly, to a kind of jig retracting device and a kind of tool
There is the Wave-soldering device of the jig retracting device.
Background technology
Many electric appliances, such as computer, air-conditioning, TV and refrigerator etc. are used in modern people's life, above these electric appliances all
There is circuit board.When circuit board is processed, need pcb board being fixed on jig, then welded each class component using crest welder
It is connected on pcb board, so as to which each class component is fixed on pcb board.
Jig needs to recycle, and the usual way of traditional jig recycling is:In next station
A certain number of jigs are concentrated, jig then is delivered to a upper station cycle with cart by worker utilizes.In order to meet life
The demand that producing line is continuously run needs to be equipped with a large amount of jig, while also needs to a large amount of cart to store these jigs, occupies
The space in a large amount of workshop, the labor intensity of operating personnel's handling fixture are also bigger.
With the development of automation, occurring automatic recycling device in the prior art, automatic recycling device includes conveyer belt,
For the first end of conveyer belt for launching jig, the second end of conveyer belt is defeated when jig is delivered to second end for taking out jig
Band is sent to stop conveying so that worker to be facilitated to take jig away, at this point, the wholly off conveying of entire conveyer belt, it is impossible to be launched to jig
And conveying, if worker does not take jig away in time, it can influence to put into jig to the first end of conveyer belt, make automatic recycling device
It operates uncoordinated, causes less efficient.
Utility model content
The purpose of this utility model is to provide a kind of jig retracting device, to solve jig recycling dress of the prior art
Put it is less efficient the technical issues of.
Jig retracting device provided by the utility model, including:First conveying assembly, the second conveying assembly and third conveying
Component;
First conveying assembly is for launching jig, and for the third conveying assembly for taking out jig, described second is defeated
Sending component is used to convey jig between first conveying assembly and second conveying assembly;
When the third conveying assembly stops, second conveying assembly, first conveying assembly can run with
Convey jig.
Further, the conveying speed of first conveying assembly is less than second conveying assembly and the third conveys
The conveying speed of component.
Further, second conveying assembly is identical with the conveying speed of the third conveying assembly.
Further, along the conveying direction of jig, first conveying assembly, second conveying assembly and the third
Conveying assembly is set gradually.
Further, first conveying assembly is equipped with the first controller, for controlling first conveying assembly
Start and stop;
Second conveying assembly is equipped with second controller, for controlling the start and stop of second conveying assembly;
The third conveying assembly is equipped with third controller, for controlling the start and stop of the third conveying assembly.
Further, first conveying assembly includes first conveyer belt and the first driving mechanism;
First driving mechanism is connect with the first conveyer belt, for driving the first conveyer belt conveying jig;
The middle part of the first conveyer belt is horizontally disposed with, and the both ends of the first conveyer belt are obliquely installed separately down.
Further, second conveying assembly includes the second conveyer belt and the second driving mechanism;
Second driving mechanism and the described second conveying band connection, for driving the second conveyer belt conveying jig;
Second conveyer belt is horizontally disposed with.
Further, the third conveying assembly includes third conveyer belt and third driving mechanism;
The third driving mechanism conveys band connection with the third, for driving the third conveyer belt conveying jig;
The third conveyer belt is horizontally disposed with.
Further, the third conveying assembly further includes photoelectric sensor;
The photoelectric sensor be used to detecting whether there is on the third conveyer belt jig by information, and third is conveyed
Take whether there is jig by information be sent to third controller;
Have on the third conveyer belt jig by when, the third controller controls the third conveyer belt to stop;
On the third conveyer belt without jig by when, the third controller controls the third conveyer belt operation.
The purpose of this utility model, which also resides in, provides a kind of Wave-soldering device, is recycled including jig described in the utility model
Device.
Jig retracting device provided by the utility model, including:First conveying assembly, the second conveying assembly and third conveying
Component;For launching jig, the third conveying assembly is used to take out jig, the second conveying group first conveying assembly
Part is used to convey jig between first conveying assembly and second conveying assembly;Stop in the third conveying assembly
When, second conveying assembly, first conveying assembly can run to convey jig.When jig retracting device works, control
Tool is thrown to through the first conveying assembly on jig retracting device, is then delivered to third conveying assembly, work through the second conveying assembly
People is taken out jig from jig retracting device by third conveying assembly, after jig is delivered to third conveying assembly, third conveying
Component stops removing jig in order to worker, when third conveying assembly stops, the first conveying assembly and the second conveying assembly energy
It enough continues to run with to convey jig, does not influence the dispensing and conveying of jig, the dispensing of jig and conveying is avoided to be taken out and controlled by worker
The speed of tool influences, and is conducive to improve the efficiency of jig retracting device.
Wave-soldering device provided by the utility model, including jig retracting device provided by the utility model, due to jig
The speed that retracting device is not taken out jig by worker is influenced, when third conveying assembly stops, the first conveying assembly and second defeated
Sending component can continue to operation to convey jig, not influence the dispensing and conveying of jig, be conducive to improve jig retracting device
Efficiency, so as to improve the efficiency of Wave-soldering device.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram for the jig retracting device that the utility model embodiment provides;
Fig. 2 is the structure diagram of the first conveying assembly in the jig retracting device that the utility model embodiment provides;
Fig. 3 is the partial enlarged view of Fig. 1;
Fig. 4 is the knot of the first conveyer belt and the second conveyer belt in the jig retracting device that the utility model embodiment provides
Structure schematic diagram;
Fig. 5 is the structure diagram of the third conveying assembly in the jig retracting device that the utility model embodiment provides.
Icon:The first conveying assemblies of 1-;11- first conveyer belts;12- columns;13- footed glasses;14- rollers;15- chains
Item;16- driven gears;The second conveying assemblies of 2-;The second conveyer belts of 21-;3- third conveying assemblies;31- thirds convey
Band;32- photoelectric sensors.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " " center ", " on ", " under ", " left side ",
" right side ", " vertical ", " level ", " interior ", " outer " etc., indicated by orientation or position relationship be based on orientation shown in the drawings or
Position relationship is for only for ease of description the utility model and simplifies description rather than instruction or imply signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, term " first " such as occur, " second ", be only used for description purpose, and it is not intended that instruction or hint relative importance.
Wherein, term " first position " and " second position " are two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection;Can be mechanical connection or electrical connection;It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
The utility model provides a kind of jig retracting device and Wave-soldering device, and multiple embodiments are given below to this reality
It is described in detail with the jig retracting device and Wave-soldering device of novel offer.
Embodiment 1
Jig retracting device provided in this embodiment, as shown in Figures 1 to 5, including:First conveying assembly 1, second conveys
Component 2 and third conveying assembly 3;First conveying assembly 1 is for launching jig, and third conveying assembly 3 is for taking out jig, and second
Conveying assembly 2 is used to convey jig between the first conveying assembly 1 and the second conveying assembly 2;Stop in third conveying assembly 3
When, the second conveying assembly 2, the first conveying assembly 1 can run to convey jig.
When jig retracting device works, jig is thrown to through the first conveying assembly 1 on jig retracting device, then through second
Conveying assembly 2 is delivered to third conveying assembly 3, and worker is taken out jig from jig retracting device by third conveying assembly 3, when controlling
After tool is delivered to third conveying assembly 3, third conveying assembly 3 stops removing jig in order to worker, stops in third conveying assembly 3
When only, the first conveying assembly 1 and the second conveying assembly 2 can continue to operation to convey jig, not influence the dispensing of jig and defeated
It send, the dispensing and conveying for avoiding jig are influenced by the speed of worker's taking-up jig, are conducive to improve the efficiency of jig retracting device.
Further, the conveying speed of the first conveying assembly 1 is less than the defeated of the second conveying assembly 2 and third conveying assembly 3
Send speed.
It is less than the conveying speed of the second conveying assembly 2 and third conveying assembly 3 in the conveying speed of the first conveying assembly 1
When, jig opposite second conveying assembly 2 and third conveying assembly 3 more can slowly convey on the first conveying assembly 1, the
A certain amount of jig can be stored on one conveying assembly 1, excessive jig is prevented to be delivered to 3 worker of third conveying assembly and is difficult in time
It takes away, while when worker takes jig away, third conveying assembly 3 stops, and the first conveying assembly 1 and the second conveying assembly 2 continue
Conveying, the conveying speed of the first conveying assembly 1 is relatively slow can to play certain cushioning effect, and jig is prevented to be deposited in third
Conveying assembly 3.
Further, the second conveying assembly 2 is identical with the conveying speed of third conveying assembly 3.In the present embodiment, first is defeated
Sending component 1, the second conveying assembly 2 and third conveying assembly 3 are driven by motor, wherein for driving the first conveying assembly 1, the
The rotating speed all same of the motor of two conveying assemblies 2 and third conveying assembly 3, wherein the motor of the first conveying assembly 1 is 1 than speed:
10, the motor ratio speed of the second conveying assembly 2 is 1:20, the motor ratio speed of third conveying assembly 3 is 1:20.
Specifically, jig retracting device provided in this embodiment, along the conveying direction of jig, the first conveying assembly 1, second
Conveying assembly 2 and third conveying assembly 3 are set gradually.
Wherein, for the first conveying assembly 1 for launching jig, jig is delivered to the second conveying assembly along the first conveying assembly 1
2, jig is delivered to third conveying assembly 3 by the second conveying assembly 2 again, and worker is taken out jig by third conveying assembly 3.
Further, the first conveying assembly 1 is equipped with the first controller, for controlling the start and stop of the first conveying assembly 1;The
Two conveying assemblies 2 are equipped with second controller, for controlling the start and stop of the second conveying assembly 2;Third conveying assembly 3 is equipped with the
Three controllers, for controlling the start and stop of third conveying assembly 3.
First conveying assembly 1, the second conveying assembly 2 and third conveying assembly 3 can control respective start and stop independently of each other,
After jig is delivered to third conveying assembly 3, third conveying assembly 3 stops conveying, at this time the first conveying assembly 1 and the second conveying
Component 2 can continue to be conveyed, the influence that not yet done third conveying assembly 3 stops, convenient for control respectively the first conveying assembly 1,
Second conveying assembly 2 and third conveying assembly 3.
Further, the first conveying assembly 1 includes 11 and first driving mechanism of first conveyer belt;First driving mechanism and the
One conveyer belt 11 connects, for first conveyer belt 11 to be driven to convey jig;The middle part of first conveyer belt 11 is horizontally disposed with, and first is defeated
The both ends of band 11 is sent to be obliquely installed separately down.
Wherein, the first driving mechanism includes actuator, and wherein actuator can be motor, hydraulic motor or starter motor etc.
Any suitable form.
In the present embodiment, actuator is motor, and the first conveying assembly 1 further includes column 12, and 12 lower section of column is equipped with footed glass
13,12 top of column is equipped with crossbeam, and the both ends of crossbeam are rotatably connected to roller 14 respectively, and roller 14 can be around the axis of roller 14
Rotation, one of roller 14 are connect by chain 15 with the first driving mechanism.
Wherein the first driving mechanism includes motor, driving gear and driven gear 16, and driving gear fixation is set in motor
Output shaft on, driving gear is engaged with driven gear 16, and driven gear 16 is connect by chain 15 with roller 14, so as to drive
Roller 14 rotates, and roller 14 can drive first conveyer belt 11 to convey jig after rotating.
The middle part of first conveyer belt 11 is horizontally disposed with, and the both ends of first conveyer belt 11 are obliquely installed separately down, and first is defeated
It send band 11 trapezoidal setting, after jig is thrown to first conveyer belt 11, is first conveyed obliquely along first conveyer belt 11, then carry out water
Flat conveying, finally conveys, is finally delivered to the second conveyer belt 21 obliquely.
Further, the second conveying assembly 2 includes the second conveyer belt 21 and the second driving mechanism;Second driving mechanism and the
Two conveyer belts 21 connect, for driving the second conveyer belt 21 conveying jig;Second conveyer belt 21 is horizontally disposed.
Wherein, the second driving mechanism is identical with the first driving mechanism structure, the second driving mechanism and the second conveyer belt 21
Connection mode is identical with the connection mode of the first driving mechanism and first conveyer belt 11, and details are not described herein again.
Second conveyer belt 21 is horizontally disposed, after jig is delivered to the second conveyer belt 21 by first conveyer belt 11, along level side
Third conveyer belt 31 is delivered to by the second conveyer belt 21.
Further, third conveying assembly 3 includes third conveyer belt 31 and third driving mechanism;Third driving mechanism and the
Three conveyer belts 31 connect, for third conveyer belt 31 to be driven to convey jig;Third conveyer belt 31 is horizontally disposed.
Wherein, third driving mechanism is identical with the first driving mechanism structure, third driving mechanism and third conveyer belt 31
Connection mode is identical with the connection mode of the first driving mechanism and first conveyer belt 11, and details are not described herein again.
Third conveyer belt 31 is horizontally disposed, after jig is delivered to third conveyer belt 31 by the second conveyer belt 21, along level side
It is conveyed on third conveyer belt 31.
Further, third conveying assembly 3 further includes photoelectric sensor 32;Photoelectric sensor 32 conveys for detecting third
With whether there is on 31 jig by information, and by whether there is on third conveyer belt 31 jig by information be sent to third control
Device;Have on third conveyer belt 31 jig by when, third controller control third conveyer belt 31 stops;In third conveyer belt 31
On without jig by when, third controller control third conveyer belt 31 is run.
Wherein, the width direction of photoelectric sensor 32 along third conveyer belt 31 is separately positioned on the two of third conveyer belt 31
Side, after jig conveys position of the jig by 32 place of photoelectric sensor, photoelectric sensor 32 detects third conveyer belt 31
On have jig by information and be sent to third controller, third controller has jig to lead on third conveyer belt 31 is received
Third conveyer belt 31 is controlled to stop after the information crossed, worker can take out jig after the stopping of third conveyer belt 31, when worker takes
After going out jig, photoelectric sensor 32 detect on third conveyer belt 31 without jig by information and be sent to third controller,
Third controller on third conveyer belt 31 is received without jig by information after control third conveyer belt 31 run, until the
For jig on three conveyer belts 31 again by the position where light belt sensor, photoelectric sensor 32 detects that third conveys again
And have on 31 jig by information and be sent to third controller, third controller is controlled on third conveyer belt 31 is received
Control third conveyer belt 31 stops after having the information passed through, so constantly recycles.
Jig retracting device provided in this embodiment, including:First conveying assembly 1, the second conveying assembly 2 and third conveying
Component 3;First conveying assembly 1 is for launching jig, and for taking out jig, the second conveying assembly 2 is used for third conveying assembly 3
Jig is conveyed between first conveying assembly 1 and the second conveying assembly 2;When third conveying assembly 3 stops, the second conveying assembly 2,
First conveying assembly 1 can run to convey jig.When jig retracting device works, jig is thrown to through the first conveying assembly 1
On jig retracting device, third conveying assembly 3 then is delivered to through the second conveying assembly 2, worker will be controlled by third conveying assembly 3
Tool takes out from jig retracting device, and after jig is delivered to third conveying assembly 3, third conveying assembly 3 stops in order to worker
Jig is removed, when third conveying assembly 3 stops, the first conveying assembly 1 and the second conveying assembly 2 can continue to operation to convey
Jig does not influence the dispensing and conveying of jig, and the dispensing and conveying for avoiding jig are influenced by the speed of worker's taking-up jig, favorably
In the efficiency for improving jig retracting device.
Embodiment 2
Wave-soldering device provided in this embodiment including jig retracting device described in embodiment 1, is filled since jig recycles
Put is not influenced by the speed of worker's taking-up jig, when third conveying assembly 3 stops, the first conveying assembly 1 and the second conveying group
Part 2 can continue to operation to convey jig, not influence the dispensing and conveying of jig, be conducive to improve the effect of jig retracting device
Rate, so as to improve the efficiency of Wave-soldering device.
Finally it should be noted that:The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System;Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand:It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement;And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of jig retracting device, which is characterized in that including:First conveying assembly, the second conveying assembly and third conveying group
Part;
For launching jig, the third conveying assembly is used to take out jig, the second conveying group first conveying assembly
Part is used to convey jig between first conveying assembly and second conveying assembly;
When the third conveying assembly stops, second conveying assembly, first conveying assembly can run to convey
Jig.
2. jig retracting device according to claim 1, which is characterized in that the conveying speed of first conveying assembly is small
In the conveying speed of second conveying assembly and the third conveying assembly.
3. jig retracting device according to claim 2, which is characterized in that second conveying assembly and the third are defeated
The conveying speed of sending component is identical.
4. jig retracting device according to any one of claim 1-3, which is characterized in that along the conveying direction of jig,
First conveying assembly, second conveying assembly and the third conveying assembly are set gradually.
5. jig retracting device according to claim 4, which is characterized in that first conveying assembly is equipped with the first control
Device processed, for controlling the start and stop of first conveying assembly;
Second conveying assembly is equipped with second controller, for controlling the start and stop of second conveying assembly;
The third conveying assembly is equipped with third controller, for controlling the start and stop of the third conveying assembly.
6. jig retracting device according to claim 5, which is characterized in that first conveying assembly includes the first conveying
Band and the first driving mechanism;
First driving mechanism is connect with the first conveyer belt, for driving the first conveyer belt conveying jig;
The middle part of the first conveyer belt is horizontally disposed with, and the both ends of the first conveyer belt are obliquely installed separately down.
7. jig retracting device according to claim 5, which is characterized in that second conveying assembly includes the second conveying
Band and the second driving mechanism;
Second driving mechanism and the described second conveying band connection, for driving the second conveyer belt conveying jig;It is described
Second conveyer belt is horizontally disposed with.
8. jig retracting device according to claim 5, which is characterized in that the third conveying assembly is conveyed including third
Band and third driving mechanism;
The third driving mechanism conveys band connection with the third, for driving the third conveyer belt conveying jig;It is described
Third conveyer belt is horizontally disposed with.
9. jig retracting device according to claim 8, which is characterized in that the third conveying assembly further includes photoelectric transfer
Sensor;
The photoelectric sensor be used to detecting whether there is on the third conveyer belt jig by information, and will be on third conveyer belt
Whether there is jig by information be sent to third controller;
Have on the third conveyer belt jig by when, the third controller controls the third conveyer belt to stop;
On the third conveyer belt without jig by when, the third controller controls the third conveyer belt operation.
10. a kind of Wave-soldering device, which is characterized in that including the jig retracting device described in any one of claim 1-9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721624376.5U CN207536690U (en) | 2017-11-28 | 2017-11-28 | Jig retracting device and Wave-soldering device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721624376.5U CN207536690U (en) | 2017-11-28 | 2017-11-28 | Jig retracting device and Wave-soldering device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207536690U true CN207536690U (en) | 2018-06-26 |
Family
ID=62615996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201721624376.5U Active CN207536690U (en) | 2017-11-28 | 2017-11-28 | Jig retracting device and Wave-soldering device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207536690U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111620074A (en) * | 2020-06-02 | 2020-09-04 | 山东新北洋信息技术股份有限公司 | Package handling apparatus and method |
-
2017
- 2017-11-28 CN CN201721624376.5U patent/CN207536690U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111620074A (en) * | 2020-06-02 | 2020-09-04 | 山东新北洋信息技术股份有限公司 | Package handling apparatus and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106628338B (en) | The on-line automatic overlay film system of glass production line | |
CN202226375U (en) | Automatic turning equipment | |
CN104528385B (en) | Upset transfer mechanism | |
CN203708651U (en) | PCB plate dismounting, turning and pasting automated all-in-one machine | |
CN201882626U (en) | Battery feeding turnover mechanism | |
CN208616820U (en) | A kind of pcb board automatic plate loader | |
CN207536690U (en) | Jig retracting device and Wave-soldering device | |
CN202318558U (en) | Novel full-automatic plate charging machine for brick machine | |
CN108639848A (en) | A kind of automatic winding apparatus for cable | |
CN201830842U (en) | Full-automatic electric water-boiling machine | |
CN207966936U (en) | Board separator | |
CN205975057U (en) | Coating machine transporter capable of adjusting fabric | |
CN205526284U (en) | But speed change adjustment belt conveyor | |
CN203569102U (en) | Overturning fluid-pouring mechanism for cell staining device | |
CN206552702U (en) | A kind of linear transport system | |
CN206511528U (en) | A kind of medicine delivering device of conveyer belt quick regulation | |
CN205441878U (en) | Defeated bottle equipment goes up and down | |
CN206925571U (en) | A kind of positioning operation platform of auxiliary process processing | |
CN110434705A (en) | A kind of surface spikes erasing apparatus | |
CN209209625U (en) | A kind of pcb board material transport autosteerer | |
CN110072348A (en) | A kind of wave soldering tool recyclable device | |
CN202310319U (en) | Automatic feeding device for wave soldering | |
CN111086844A (en) | Track handling device of vacuum welding furnace | |
CN107777291B (en) | Automatic conveying device for crest welder | |
CN205966548U (en) | Automatic weight letter sorting equipment of goods that freezes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |