CN202572722U - Mode-locking device - Google Patents
Mode-locking device Download PDFInfo
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- CN202572722U CN202572722U CN 201220194258 CN201220194258U CN202572722U CN 202572722 U CN202572722 U CN 202572722U CN 201220194258 CN201220194258 CN 201220194258 CN 201220194258 U CN201220194258 U CN 201220194258U CN 202572722 U CN202572722 U CN 202572722U
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- locking
- piston
- spool
- oil pocket
- oil
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Abstract
The utility model relates to a mode-locking device which comprises a mode-locking oil cylinder. The mode-locking oil cylinder comprises a mode-locking oil cylinder body, a piston, a piston rod, and a valve core component, wherein the piston rod is provided with a locking oil-way and an unlocking oil-way; and a valve core supporting part is arranged at one end of the piston rod which is inserted into the piston. The valve core component comprises a valve seat and a valve core, wherein the valve core is installed at the valve core supporting part in a sliding manner; a locking oil cavity and an unlocking oil cavity are isolatedly arranged between the valve core and the valve core supporting part; and the valve core supporting part is provided with a locking channel which communicates the locking oil-way and the locking oil cavity, and an unlocking channel which communicates the unlocking oil-way and the unlocking oil cavity. When high pressure oil is injected into the locking oil cavity through the locking oil-way and the locking channel, the high pressure oil drives the valve core to seal a valve seat channel, so as to separate a rod oil cavity from a rodless oil cavity and provide clamping force. When high pressure oil is injected into the unlocking oil cavity through the unlocking oil-way and the unlocking channel, the high pressure oil drives the valve core to open the valve seat channel, so as to communicate the rod oil cavity with the rodless oil cavity and remove the clamping force. The device has the advantages of simple structure and reliability.
Description
Technical field
The utility model relates to clamping apparatus, more particularly, relates to a kind of clamping apparatus that can be used for injection machine, die casting machine, hydraulic press, section bar extruder etc.
Background technology
Two plate direct pressure mechanisms of existing hydraulic injection molding machine, hydraulic press etc., the most of employing by two mould shifting oil cylinders drive moving platens done the action of opening and closing mould; With Mode-locking oil cylinder with mold cramping and required clamp force is provided.The circulation Mode-locking oil cylinder adopts the overhanging structure of double piston-rod mostly in existing, exist the long and second overhanging piston rod of fuselage at dispensing end dangerous and again shape ring shortcomings such as artificial material loading, maintenance operation, if but do not have the second overhanging piston rod; When matched moulds, will have a large amount of hydraulic oil and get back to fuel tank, during die sinking, need again from the fuel tank oil suction; Not only increase the weight of the resistance of folding mould; Also can make die sinking produce negative pressure, suck air causes the opening and closing mold process to move unsettled shortcoming.
For this reason; The inventor has successively proposed the scheme of multinomial solution; Like Chinese utility model patent 201020638296.7,200920264197.4,201020576769.5; Chinese invention patent application 200910213625.5 etc.; It adopts the double-plate structure, Mode-locking oil cylinder is set clamp force is provided, this Mode-locking oil cylinder comprises the Mode-locking oil cylinder body, be arranged on piston, an end in the Mode-locking oil cylinder body insert in the Mode-locking oil cylinder body and the piston rod that is fixedly connected with piston one end and be arranged on piston and piston rod between core assembly.
This piston is included in the communication passage of its sidewall setting and the central passage that is provided with at axis direction; Piston is divided into the Mode-locking oil cylinder body has bar oil pocket and no bar oil pocket, and is communicated with bar oil pocket and no bar oil pocket through communication passage and central passage.Utilize core assembly to seal the connection with open center passage and no bar oil pocket, thereby clamp force is provided.
Existing core assembly typically uses spring assembly elastic restoring force is provided, thereby promotes valve core reset, realizes function open and sealing.Because the increase of spring assembly makes the net sectional area of circulation passage reduce, resistance increases, the negotiability of influence oil.
The utility model content
The technical problem that the utility model will solve is, a kind of clamping apparatus rational in infrastructure, reliable is provided.
The utility model solves the technical scheme that its technical problem adopted: construct a kind of clamping apparatus; Comprise Mode-locking oil cylinder, said Mode-locking oil cylinder comprises the Mode-locking oil cylinder body, be arranged on piston, an end in the said Mode-locking oil cylinder body inserts in the said Mode-locking oil cylinder body and the piston rod that is fixedly connected with said piston one end and be arranged on the core assembly between said piston and the piston rod;
Said piston is included in the communication passage of its sidewall setting and the central passage that is provided with at axis direction; Said piston is divided into said Mode-locking oil cylinder body has bar oil pocket and no bar oil pocket, and is communicated with said have bar oil pocket and no bar oil pocket through said communication passage and central passage;
Said piston rod is provided with locking oil circuit and release oil circuit at axis direction; The end that said piston rod inserts said piston is provided with the spool support;
Said core assembly comprises the valve seat in the central passage that is arranged on said piston and is arranged on the spool between said valve seat and the piston rod; Said valve seat is provided with the valve base channel that is communicated with said centre passage and no bar oil pocket; Said spool seals coupling near an end of said valve seat with said valve base channel mutually;
Said spool is slidably mounted in said spool support, between said spool and said spool support, is provided with locking oil pocket and the release oil pocket that is isolated; Said spool support is provided with and is communicated with said locking oil circuit and the locking passage of locking oil pocket and the lock access of separating that is communicated with said release oil circuit and release oil pocket;
When hydraulic oil when said locking oil circuit, locking passage inject said locking oil pocket, promote the said valve base channel of said seal spool;
When hydraulic oil through said release oil circuit, when separating lock access and injecting said release oil pocket, promote the open said valve base channel of said spool.
In the clamping apparatus of the utility model, said spool support comprises that said piston rod inserts the end of said piston and at the hard-wired installed part of said end;
The end of said piston rod offers first annular groove; Said installed part is provided with second annular groove near a side of said piston rod;
Said spool comprises the peripheral spool main body of said spool support that is slidingly located in, and the inwall of said spool main body is provided with the annular lip of isolated said first annular groove and second annular groove; Form said locking oil pocket and release oil pocket respectively in the both sides of said annular lip;
Said locking passage is arranged on said piston-rod end, is communicated with said first annular groove and locking oil circuit; The said lock access of separating is arranged on the said installed part, is communicated with said second annular groove and release oil circuit.
In the clamping apparatus of the utility model, said spool support comprises the installed part that is fixedly installed on said piston-rod end, and said installed part is provided with first annular groove near a side of said piston-rod end;
Said spool comprises perforation spool main body that the said installed part that is slidingly located in is peripheral and the closure member that is fixedly mounted on said spool main body outside end;
Said spool main body is provided with annular lip near a side of said piston-rod end, and said annular lip is sealed said first annular groove and formed said release oil pocket; Form said locking oil pocket between said closure member and the said installed part;
Saidly separate lock access and the locking passage is arranged on the said installed part.
In the clamping apparatus of the utility model, said closure member extends protuberance to said installed part, and corresponding said installed part is provided with depressed part; The sealing of said protuberance is slided and is inserted in the said depressed part, forms said locking oil pocket at said protuberance and depressed part, and with said locking channel connection.
In the clamping apparatus of the utility model, said closure member also is provided with balance channel, also is provided with the balance oil pocket between said installed part and the said closure member, and said balance oil pocket is communicated with said no bar oil pocket through said balance channel.
In the clamping apparatus of the utility model, said valve seat and said piston are one-body molded, shrink to the central passage direction at the inwall of said piston to form; Said valve base channel is arranged on the sidewall of said piston.
In the clamping apparatus of the utility model, said spool support comprise said piston rod the said piston of insertion end and at the said terminal seal of installing;
The end of said piston rod is provided with first annular groove;
Said seal separates said internal piston space and said no bar oil pocket, and is provided with second annular groove in the inboard of said seal;
Said spool comprises the spool main body that is set in said spool support periphery; Said spool main body radially inwardly is provided with the annular lip of isolated said first annular groove and second annular groove, forms said locking oil pocket and release oil pocket respectively in the both sides of said annular lip.
In the clamping apparatus of the utility model, said valve seat is fixedly mounted on the end of said piston away from said piston rod, and said valve base channel is a conial channel; The end that said spool cooperates with said valve seat is a taper.
In the clamping apparatus of the utility model, the position that said spool and said spool support join is provided with sealing ring.
In the clamping apparatus of the utility model, the coaxial axial centre place that is arranged on said piston rod of locking oil circuit and release oil circuit;
And said release oil circuit is arranged in the said locking oil circuit, and perhaps said locking oil circuit is arranged in the said release oil circuit.
Enforcement the utlity model has following beneficial effect: hydraulic oil promotes the seal spool valve base channel through the locking oil circuit, when the locking passage injects the locking oil pocket, and will have bar oil pocket and no bar oil pocket to separate, and clamp force is provided; When accomplishing processing (like injection moulding, die casting, extruding etc.), hydraulic oil promotes the open valve base channel of spool through the release oil circuit, when separating lock access injection release oil pocket, and making has bar oil pocket and no bar oil pocket connection, lays down clamp force; Adopt two oil channel structures to carry out locked mode and release, avoided prior art need adopt spring assembly to carry out the defective that unlocking operation brings, improved the reliability of equipment.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is the cross-sectional schematic that first embodiment of the utility model clamping apparatus is in released state;
Fig. 2 is the cross-sectional schematic that first embodiment of the utility model clamping apparatus is in mode-lock status;
Fig. 3 is the cross-sectional schematic that second embodiment of the utility model clamping apparatus is in released state;
Fig. 4 is the cross-sectional schematic that second embodiment of the utility model clamping apparatus is in mode-lock status;
Fig. 5 is the cross-sectional schematic that the 3rd embodiment of the utility model clamping apparatus is in released state;
Fig. 6 is the cross-sectional schematic that the 3rd embodiment of the utility model clamping apparatus is in mode-lock status;
Fig. 7 is the cross-sectional schematic that the 4th embodiment of the utility model clamping apparatus is in released state;
Fig. 8 is the cross-sectional schematic that the 4th embodiment of the utility model clamping apparatus is in mode-lock status.
The specific embodiment
Like Fig. 1, shown in 2, be first embodiment of the clamping apparatus of the utility model, can be used on the equipment such as injection machine, die casting machine, hydraulic press, section bar extruder clamp force being provided.
This clamping apparatus comprises Mode-locking oil cylinder, this Mode-locking oil cylinder comprises Mode-locking oil cylinder body 101, be arranged on piston 102, ends in the Mode-locking oil cylinder body 101 insert in the Mode-locking oil cylinder body 101 and the piston rod 103 that is fixedly connected with piston 102 1 ends and be arranged on piston 102 and piston rod 103 between core assembly.
This piston 102 is slidably disposed in the Mode-locking oil cylinder body 101, and Mode-locking oil cylinder body 101 has been separated into bar oil pocket 104 and no bar oil pocket 105; And the sidewall at piston 102 is provided with communication passage 106, and central passage 107 is set on axis direction.Be communicated with bar oil pocket 104 and no bar oil pocket 105 through communication passage 106 and central passage 107.
Certainly, the outer wall of this piston 102 can also be provided with groove, in the groove and between the inwall of Mode-locking oil cylinder body 101 sealing ring can also be set, and plays sealing effectiveness.
One end of this piston rod 103 inserts in the Mode-locking oil cylinder body 101, and is fixedly connected with piston 102, drives piston 102 and in Mode-locking oil cylinder body 101, slides.The axis direction of piston rod 103 is provided with locking oil circuit 108 and release oil circuit 109, can insert hydraulic oil respectively, and the pressure of locked mode or release is provided.As shown in the figure, this locking oil circuit 108 is arranged on the axial centre place of said piston rod 103, and this release oil circuit 109 is arranged in the locking oil circuit 108.Certainly, the form that is provided with of locking oil circuit 108 and release oil circuit 109 also can be other form, for example two side by side oil circuit or locking oil circuit 108 in release oil circuit 109.
An end that inserts piston 102 at piston rod 103 also is provided with the spool support; Be used to supply core assembly slidably to install; And and core assembly between form locking oil pocket 110 and release oil pocket 111, promote the reciprocating motion of core assembly, realize the function of locked mode and release.
In the present embodiment, this spool support comprises that piston rod 103 inserts end and the installed part 112 in these piston rod 103 terminal fixed installations in the piston 102.The end of this piston rod 103 is provided with first annular groove, and installed part 112 is provided with second annular groove near a side of piston rod 103.In the present embodiment, the radial depth of this first annular groove is less than the radial depth of this second annular groove; Certainly, the radial depth of first annular groove and second annular groove can be adjusted as required.
End at this piston rod 103 is provided with locking passage 113, is communicated with first annular groove and locking oil circuit 108 through this locking passage 113; On installed part 112, be provided with and separate lock access 114, this is separated lock access 114 and is communicated with second annular groove and release oil circuit 109.
This core assembly comprises valve seat 115, spool etc., is used for connected sum and is closed with bar oil pocket 104 and no bar oil pocket 105.This valve seat 115 is arranged in the central passage 107 of piston 102, is provided with the valve base channel 116 that is communicated with piston 102 central passages 107 and no bar oil pocket 105.As shown in the figure, this valve base channel 116 is roughly tapered channel, and the end that spool cooperates with valve seat 115 is similarly taper, plays the effect of automatic centering, sealing.
This spool comprises the sheathed peripheral spool main body 117 of spool support that is installed in of sliding; The inwall of this spool main body 117 is provided with the annular lip 118 of isolated first annular groove and second annular groove; In the both sides of annular lip 118 respectively and form locking oil pocket 110 and release oil pocket 111 between first annular groove and second annular groove; Be communicated with first annular groove and locking oil circuit 108 through locking passage 113 again, be communicated with second annular groove and release oil circuit 109 through separating lock access 114.
Understandable, this spool main body 117 is provided with sealing ring with the position that the spool support joins, thereby plays sealing function.
Hydraulic oil promotes seal spool valve base channel 116, and will have bar oil pocket 104 and no bar oil pocket 105 to separate through locking oil circuit 108, when locking passage 113 injects locking oil pocket 110, and clamp force is provided, and is as shown in Figure 2; When accomplishing processing (like injection moulding, die casting, extruding etc.), hydraulic oil promotes the open valve base channel 116 of spool through release oil circuit 109, when separating lock access 114 injection release oil pockets 111, and making has bar oil pocket 104 and no bar oil pocket 105 connections, lays down clamp force; Adopt two oil channel structures to carry out locked mode and release, avoided prior art need adopt spring assembly to carry out the defective that unlocking operation brings, improved the reliability of equipment.
Like Fig. 3, shown in 4; Be second embodiment of the clamping apparatus of the utility model; The difference of itself and first embodiment is core assembly and spool support, and other structures (like Mode-locking oil cylinder body, piston rod 203, piston etc.) are basic identical with first embodiment, so do not give unnecessary details.
As shown in the figure, this spool support comprises the installed part 212 of the end that is fixedly installed on piston rod 203 insertion pistons, and this installed part 212 is provided with first annular groove near piston rod 203 terminal sides.And spool comprises the spool main body 217 of perforation and the closure member 219 that is fixedly mounted on spool main body 217 outside end.The slidably sheathed periphery that is installed in installed part 212 of this spool main body 217, and be provided with annular lip 218 near the terminal sides of piston rod 203, this annular lip 218 sealings first annular groove forms release oil pocket 211; And formation locking oil pocket 210 between closure member 219 and the installed part 212.
Be arranged on the installed part 212 with locking passage 213 and separate lock access 214.This is separated lock access 214 and is communicated to first annular groove, thereby release oil pocket 211 is communicated with release oil circuit 209; This locking passage 213 is communicated to the outboard end of installed part 212, thereby locking oil pocket 210 is communicated with locking oil circuit 208.
Certainly, the position that joins at spool main body 217 and installed part 212 also is provided with sealing ring, plays sealing function.
Hydraulic oil promotes the seal spool valve base channel, and will have bar oil pocket 204 and no bar oil pocket 205 to separate through locking oil circuit 208, when locking passage 213 injects locking oil pocket 210, and clamp force is provided, and is as shown in Figure 4; When accomplishing processing (like injection moulding, die casting, extruding etc.), hydraulic oil promotes the open valve base channel of spool through release oil circuit 209, when separating lock access 214 injection release oil pockets 211, and making has bar oil pocket 204 and no bar oil pocket 205 connections, lays down clamp force.
Like Fig. 5, shown in 6, be the 3rd embodiment of the clamping apparatus of the utility model, the difference of itself and second embodiment is that its closure member 319 extends protuberance 320 to the direction of installed part 312, corresponding, on installed part 312, be provided with depressed part.These protuberance 320 sealings are slided and are inserted in the depressed part, form locking oil pocket 310 at protuberance 320 and depressed part, and are communicated with locking passage 313.
Further, the position that position, protuberance 320 and the depressed part that joins at spool main body and installed part 312 joins can also be provided with sealing ring, plays sealing function.
Further, this closure member 319 also is provided with balance channel 321, and is provided with balance oil pocket 322 between installed part 312 and the closure member 319; This balance oil pocket 322 is communicated to no bar oil pocket through balance channel 321; Thereby in the locked mode process, as shown in Figure 6, can utilize the hydraulic oil in the no bar oil pocket to get into balance oil pocket 322 through balance channel 321; Promotion provides certain clamp force, improves the reliability of locked mode.
Like Fig. 7, shown in 8, be the 4th embodiment of the clamping apparatus of the utility model, it is with the difference of the foregoing description: piston 402, core assembly, spool support etc. are all different.As shown in the figure; The valve seat 415 and the piston 402 of core assembly are integrated; Inwall at piston 402 shrinks formation to central passage 407 directions, and valve base channel 416 is arranged on the sidewall of piston 402, is communicated with the central passage 407 and no bar oil pocket 405 of piston 402.The end face that valve seat 415 engages with spool main body 417 is that the inclined-plane cooperates.
This spool support comprises end and the seal of installing endways 412 of the insertion piston 402 of piston rod 403.Sealing part 412 is fixedly connected with piston rod 403, piston 402, plays packed-piston 402 ends, separates the effect of piston 402 inner spaces and no bar oil pocket 405.As shown in the figure, the end of this piston rod 403 is provided with first annular groove and seal 412 inboards are provided with second annular groove; And the spool main body 417 of core assembly slidably is set in spool support periphery; And radially inwardly be provided with the annular lip 418 of isolated said first annular groove and second annular groove, thereby form locking oil pocket 410 and release oil pocket 411 respectively in the both sides of annular lip 418.Certainly, locking passage 413, separate the end that lock access 414 is arranged on piston rod 403, locking oil pocket 410 and release oil pocket 411 are communicated to locking oil circuit 408 and release oil circuit 409 respectively.
Hydraulic oil promotes seal spool valve base channel 416, and will have bar oil pocket 404 and no bar oil pocket 405 to separate through locking oil circuit 408, when locking passage 413 injects locking oil pocket 410, and clamp force is provided, and is as shown in Figure 8; When accomplishing processing (like injection moulding, die casting, extruding etc.), hydraulic oil promotes the open valve base channel 416 of spool through release oil circuit 409, when separating lock access 414 injection release oil pockets 411, and making has bar oil pocket 404 and no bar oil pocket 405 connections, lays down clamp force.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model accompanying claims according to above-mentioned explanation.
Claims (10)
1. clamping apparatus; Comprise Mode-locking oil cylinder, said Mode-locking oil cylinder comprises the Mode-locking oil cylinder body, be arranged on piston, an end in the said Mode-locking oil cylinder body inserts in the said Mode-locking oil cylinder body and the piston rod that is fixedly connected with said piston one end and be arranged on the core assembly between said piston and the piston rod;
Said piston is included in the communication passage of its sidewall setting and the central passage that is provided with at axis direction; Said piston is divided into said Mode-locking oil cylinder body has bar oil pocket and no bar oil pocket, and is communicated with said have bar oil pocket and no bar oil pocket through said communication passage and central passage; It is characterized in that:
Said piston rod is provided with locking oil circuit and release oil circuit at axis direction; The end that said piston rod inserts said piston is provided with the spool support;
Said core assembly comprises the valve seat in the central passage that is arranged on said piston and is arranged on the spool between said valve seat and the piston rod; Said valve seat is provided with the valve base channel that is communicated with said centre passage and no bar oil pocket; Said spool seals coupling near an end of said valve seat with said valve base channel mutually;
Said spool is slidably mounted in said spool support, between said spool and said spool support, is provided with locking oil pocket and the release oil pocket that is isolated; Said spool support is provided with and is communicated with said locking oil circuit and the locking passage of locking oil pocket and the lock access of separating that is communicated with said release oil circuit and release oil pocket;
When hydraulic oil when said locking oil circuit, locking passage inject said locking oil pocket, promote the said valve base channel of said seal spool;
When hydraulic oil through said release oil circuit, when separating lock access and injecting said release oil pocket, promote the open said valve base channel of said spool.
2. clamping apparatus according to claim 1 is characterized in that, said spool support comprises that said piston rod inserts the end of said piston and at the hard-wired installed part of said end;
The end of said piston rod offers first annular groove; Said installed part is provided with second annular groove near a side of said piston rod;
Said spool comprises the peripheral spool main body of said spool support that is slidingly located in, and the inwall of said spool main body is provided with the annular lip of isolated said first annular groove and second annular groove; Form said locking oil pocket and release oil pocket respectively in the both sides of said annular lip;
Said locking passage is arranged on said piston-rod end, is communicated with said first annular groove and locking oil circuit; The said lock access of separating is arranged on the said installed part, is communicated with said second annular groove and release oil circuit.
3. clamping apparatus according to claim 1 is characterized in that, said spool support comprises the installed part that is fixedly installed on said piston-rod end, and said installed part is provided with first annular groove near a side of said piston-rod end;
Said spool comprises perforation spool main body that the said installed part that is slidingly located in is peripheral and the closure member that is fixedly mounted on said spool main body outside end;
Said spool main body is provided with annular lip near a side of said piston-rod end, and said annular lip is sealed said first annular groove and formed said release oil pocket; Form said locking oil pocket between said closure member and the said installed part;
Saidly separate lock access and the locking passage is arranged on the said installed part.
4. clamping apparatus according to claim 3 is characterized in that said closure member extends protuberance to said installed part, and corresponding said installed part is provided with depressed part; The sealing of said protuberance is slided and is inserted in the said depressed part, forms said locking oil pocket at said protuberance and depressed part, and with said locking channel connection.
5. clamping apparatus according to claim 4 is characterized in that said closure member also is provided with balance channel, also is provided with the balance oil pocket between said installed part and the said closure member, and said balance oil pocket is communicated with said no bar oil pocket through said balance channel.
6. clamping apparatus according to claim 1 is characterized in that, said valve seat and said piston are one-body molded, shrinks to the central passage direction at the inwall of said piston to form; Said valve base channel is arranged on the sidewall of said piston.
7. clamping apparatus according to claim 6 is characterized in that, said spool support comprise said piston rod the said piston of insertion end and at the said terminal seal of installing;
The end of said piston rod is provided with first annular groove;
Said seal separates said internal piston space and said no bar oil pocket, and is provided with second annular groove in the inboard of said seal;
Said spool comprises the spool main body that is set in said spool support periphery; Said spool main body radially inwardly is provided with the annular lip of isolated said first annular groove and second annular groove, forms said locking oil pocket and release oil pocket respectively in the both sides of said annular lip.
8. according to each described clamping apparatus of claim 1-5, it is characterized in that said valve seat is fixedly mounted on the end of said piston away from said piston rod, and said valve base channel is a conial channel; The end that said spool cooperates with said valve seat is a taper.
9. according to each described clamping apparatus of claim 1-7, it is characterized in that the position that said spool and said spool support join is provided with sealing ring.
10. according to each described clamping apparatus of claim 1-7, it is characterized in that the coaxial axial centre place that is arranged on said piston rod of locking oil circuit and release oil circuit;
And said release oil circuit is arranged in the said locking oil circuit, and perhaps said locking oil circuit is arranged in the said release oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194258 CN202572722U (en) | 2012-04-28 | 2012-04-28 | Mode-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194258 CN202572722U (en) | 2012-04-28 | 2012-04-28 | Mode-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202572722U true CN202572722U (en) | 2012-12-05 |
Family
ID=47242172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220194258 Expired - Lifetime CN202572722U (en) | 2012-04-28 | 2012-04-28 | Mode-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202572722U (en) |
-
2012
- 2012-04-28 CN CN 201220194258 patent/CN202572722U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170508 Address after: 523000 Guangdong province Dongguan City Hengli Town shansha Industrial Zone Patentee after: GUANGDONG BLOOMACHINE CO., LTD. Address before: Two street Daliang District Shunde town Kim garden coconut 528300 Guangdong city of Foshan province No. 807 Patentee before: Huang Buming |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |