CN207325856U - A kind of forging equipment - Google Patents
A kind of forging equipment Download PDFInfo
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- CN207325856U CN207325856U CN201720725957.1U CN201720725957U CN207325856U CN 207325856 U CN207325856 U CN 207325856U CN 201720725957 U CN201720725957 U CN 201720725957U CN 207325856 U CN207325856 U CN 207325856U
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- Prior art keywords
- vibration damper
- damper plate
- supporting column
- upper supporting
- lower supporting
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- 238000005242 forging Methods 0.000 title claims abstract description 54
- 238000013016 damping Methods 0.000 claims abstract description 36
- 229920001875 Ebonite Polymers 0.000 claims abstract description 6
- 239000010721 machine oil Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Presses And Accessory Devices Thereof (AREA)
Abstract
The utility model discloses a kind of forging equipment, belong to technical field of forging and pressing equipment, its purpose is to provide a kind of forging equipment using both ends uniform stressed, extend the service life of forging equipment.It includes forging press, groove, around groove concrete layer is equipped with bottom surface, hard rubber pad, lower supporting rod and upper supporting column are equipped with groove, shock-damping structure is equipped between upper supporting column and lower supporting rod, enclosure wall is equipped with the outer periphery of upper supporting column and lower supporting rod, forging press is installed on upper supporting column, and sandstone layer is filled between the outer layer of enclosure wall and recess sidewall；Forging press includes rack, hydraulic cylinder, guide rail, briquetting is provided between two guide rails, contiguous block is connected with the end of hydraulic axis, linkage is symmetrically arranged with the arranged on left and right sides of hydraulic axis, hinged in the middle part of three connecting rods of the linkage, end is hingedly connected in rack, is articulated with contiguous block, is articulated with briquetting.The utility model is suitable for forging equipment.
Description
Technical field
The utility model belongs to technical field of forging and pressing equipment, is related to a kind of forging equipment.
Background technology
Forging is that one kind applies pressure using metal forming machinery to metal stock, it is produced plastic deformation to obtain with one
Determine the processing method of mechanical performance, definite shape and size forging, be one of the two big parts of forging and stamping (forging and punching press).
The defects of as cast condition that metal produces in smelting process is loose can be eliminated by forging, optimize heterogeneous microstructure, simultaneously because
Complete metal streamline is saved, the mechanical performance of forging generally to be preferred over the casting of same material.High, work is loaded in associated mechanical
Make the important part of condition sternness, in addition to the plate, section bar or weldment of the better simply available rolling of shape, more using forging.
In the prior art, since forging is to utilize to make metal embryo material produce deformation metal stock application pressure, thus
In forging process, the pressure that metal forming machinery applies embryo material usually is buffered with regard to the damping device for needing to aid in.The prior art
In, metal forming machinery is typically to use hydraulic-driven, connects briquetting in the end of the hydraulic axis of hydraulic cylinder, hydraulic cylinder passes through hydraulic axis
Driving briquetting goes stamped workpieces.But in order to make the movement of briquetting more stablize, hydraulic axis is typically the center with briquetting
Connection, then in punching press, the stepless action of briquetting both ends on workpiece, completes punching press.But when carrying out punching press, due to briquetting
Active force typically from hydraulic axis, thus mainly by middle part to workpiece press.When the thickness for running into workpiece is different or
When the intensity on person both sides is different, briquetting is easily caused gradually to tilt by the way of centre presses, finally so that briquetting and hydraulic pressure
There is defect in the connection of bar, and briquetting is split away off in forging process from hydraulic axis, and easily causes security incident.
Utility model content
The purpose of this utility model is that：A kind of forging equipment using both ends uniform stressed is provided, extends forging equipment
Service life.
The technical solution adopted in the utility model is as follows：
A kind of forging equipment, including forging press, the groove that is excavated on ground, coagulation is equipped with around groove with bottom surface
Soil layer, is equipped with hard rubber pad, lower supporting rod and upper supporting column, is equipped between upper supporting column and lower supporting rod successively from the bottom up in groove
Shock-damping structure, is equipped with enclosure wall, forging press is installed on upper supporting column, in the outer layer of enclosure wall in the outer periphery of upper supporting column and lower supporting rod
Sandstone layer is filled between recess sidewall；Forging press includes rack, the hydraulic cylinder being arranged in rack, is arranged on rack two
The guide rail of side, is provided with briquetting between two guide rails, and briquetting can be slided up and down along the short transverse of guide rail, the hydraulic axis of hydraulic cylinder
Stretched into after through rack below rack, and contiguous block is connected with the end of hydraulic axis, symmetrically set in the arranged on left and right sides of hydraulic axis
Linkage is equipped with, which includes first connecting rod, second connecting rod and third connecting rod, first connecting rod, second connecting rod and
Three-link is hinged, and the other end of first connecting rod is articulated with rack, and the other end of second connecting rod is articulated with connection
Block, the other end of third connecting rod are articulated with briquetting.
Wherein, which includes main vibration damper plate, and the both ends of main vibration damper plate are connected with upper supporting column, lower supporting rod respectively, main
Secondary vibration damper plate is also associated with vibration damper plate, the other end of secondary vibration damper plate is connected with upper supporting column or lower supporting rod.
Wherein, main vibration damper plate is the main vibration damper plate of arc, and secondary vibration damper plate is arc pair vibration damper plate, and the protrusion side of main vibration damper plate
To consistent with the protrusion direction of secondary vibration damper plate, main vibration damper plate is connected to form herringbone structure with secondary vibration damper plate.
Wherein, main vibration damper plate is the main vibration damper plate of arc, and secondary vibration damper plate is arc pair vibration damper plate, and the protrusion side of main vibration damper plate
To the protrusion direction with secondary vibration damper plate on the contrary, main vibration damper plate is connected to form herringbone structure with secondary vibration damper plate.
Wherein, in same group of shock-damping structure, the tie point of main vibration damper plate and upper supporting column is A points, secondary vibration damper plate and lower supporting rod
Tie point be B points, the tie point of main vibration damper plate and lower supporting rod is C points, and A points are located at B points, the surface of C points.
Wherein, machine oil is housed between upper supporting column and lower supporting rod, the liquid level of machine oil is parallel with the top surface of upper supporting column.
Wherein, machine oil overflow launder is equipped with the top surface of upper supporting column, which is annular groove.
Wherein, in same group of shock-damping structure, pressure sensor is provided between secondary vibration damper plate and lower supporting rod, in main damping
Pressure sensor is provided between plate and upper supporting column or lower supporting rod.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, in the utility model, shock-damping structure is set between upper supporting column and lower supporting rod, is mitigated by shock-damping structure and forged and pressed
The sharp pounding that equipment produces, avoids vibrations from disturbing residents；Two groups of linkages are set in forging press, and two groups of linkages are symmetrically set
Put in the both sides of hydraulic axis, when Driven by Hydraulic Cylinder contiguous block moves, mobile contiguous block is same by the linkage for driving both sides
Step movement, second connecting rod outwards strut first connecting rod, third connecting rod, so that briquetting will be driven to move down and forge and press workpiece；Pass through two
Group linkage carries out both ends pressure to briquetting, effectively avoids the briquetting in the thickness difference of workpiece or the different intensity on both sides
The defects of producing inclination, effectively avoids forging press from being damaged.
2nd, in the utility model, which includes main vibration damper plate, secondary vibration damper plate, and one end of secondary vibration damper plate is connected to
Herringbone structure is formed on main vibration damper plate, every piece of main vibration damper plate, secondary vibration damper plate are respectively provided with certain toughness and rigidity, when forging and stamping are set
During standby workpiece pressing, the main vibration damper plate, secondary vibration damper plate can produce deformation, so that buffering, damping, the effect of absorbing are played, and
When forging equipment rises, main vibration damper plate, secondary vibration damper plate can Quick-return deformation, each component recovers rapidly to reset condition,
Further, since be by plate body carry out damping, thus plate body produce deformation and recover deformation during be not in because
Set quantity more, closeer and adjacent spring is knotted, snarly phenomenon, guarantee damping device can continuation into
Row normal work, improves the damping efficiency of damping device.
3rd, in the utility model, main vibration damper plate and secondary vibration damper plate are arranged to arc panel, using the plate body energy of arcuate structure
Enough vibration damper plate is set to be more prone to deformation, so as to improve the damping effect of damping device.
4th, in the utility model, machine oil, the liquid level of machine oil and the top surface of upper supporting column are housed between upper supporting column and lower supporting rod
It is parallel, judge that the actual effect of vibration damper plate acts on by observing machine oil with the presence or absence of the situation overflowed.
5th, in the utility model, pressure sensor is provided between secondary vibration damper plate and lower supporting rod, main vibration damper plate with it is upper
Pressure sensor is provided between pillar or lower supporting rod, the load that vibration damper plate born can be monitored in real time by pressure sensor
Lotus, when the load that vibration damper plate is born is higher, system can determine whether that the load of vibration damper plate is larger, so as to stop forging, avoid damping
The damage of plate, ensures the follow-up normal work of damping device.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of forging equipment in the utility model；
Fig. 3 is the partial schematic diagram of Fig. 1；
Fig. 4 is the structure diagram of shock-damping structure in the utility model；
Fig. 5 is the structure diagram of shock-damping structure in another embodiment of the utility model；
Marked in figure：1- grooves, 2- concrete layers, 3- upper supporting columns, 4- lower supporting rods, 5- enclosure walls, 6- pairs vibration damper plate, 7- master subtract
Shake plate, 8- machine oil, 9- hard rubber pad, 10- sandstone layer, 11- machine oil overflow launder, 12- forging equipments, 13- pressure sensors, 121-
Hydraulic cylinder, 122- racks, 123- contiguous blocks, 124- first connecting rods, 125- second connecting rods, 126- third connecting rods, 127- briquettings,
128- guide rails.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, is not used to limit the utility model.
A kind of forging equipment, is included in the groove 1 that ground excavates, and concrete layer 2 is equipped with bottom surface around groove 1,
Upper supporting column 3 and lower supporting rod 4 are equipped with the center of groove 1, multigroup shock-damping structure is equipped between upper supporting column 3 and lower supporting rod 4, it is multigroup
Damping device is evenly distributed with along the cross-wise direction of groove 1.Enclosure wall 5 is equipped with around upper supporting column 3 and lower supporting rod 4, which can use
Brick wall structure, is lined with hard rubber pad 9 below lower supporting rod 4, and forging equipment 12 is fixed on above upper supporting column 3；In the outer of enclosure wall 5
Sandstone layer 10 is filled between layer and 1 side wall of groove.The forging press 12 includes rack 122, the hydraulic pressure being arranged in rack 122
Cylinder 121, the guide rail 128 for being arranged on 122 both sides of rack, are provided with briquetting 127 between two guide rails 128, and briquetting 127 can be along guide rail
128 short transverse slides up and down, and the hydraulic axis of hydraulic cylinder 121 stretches into the lower section of rack 122 after passing through rack 122, and in hydraulic pressure
The end of axis is connected with contiguous block 123, is symmetrically arranged with linkage in the arranged on left and right sides of hydraulic axis, which includes
First connecting rod 124, second connecting rod 125 and third connecting rod 126, first connecting rod 124, second connecting rod 125 and third connecting rod 126 are cut with scissors
It is connected together, and the other end of first connecting rod 124 is articulated with rack 122, the other end of second connecting rod 125 is articulated with contiguous block
123, the other end of third connecting rod 126 is articulated with briquetting 127.
The shock-damping structure includes main vibration damper plate 7, and the both ends of main vibration damper plate 7 are connected with upper supporting column 3, lower supporting rod 4 respectively, and master subtracts
Secondary vibration damper plate 6 is also associated with shake plate 7, the other end of secondary vibration damper plate 6 is connected with upper supporting column 3 or lower supporting rod 4.When forging equipment 12
When being downwardly applied to active force, main vibration damper plate 7, secondary vibration damper plate 6 will be extruded, main vibration damper plate 7, secondary vibration damper plate 6 produce deformation, so that real
Existing damping, the purpose of buffering.
Deformation is produced for the ease of main vibration damper plate 7, secondary vibration damper plate 6, thus the main vibration damper plate 7 is arranged to the main vibration damper plate of arc
7, which is arranged to arc pair vibration damper plate 6, and the protrusion direction of main vibration damper plate 7 and the protrusion direction one of secondary vibration damper plate 6
Cause, main vibration damper plate 7 is connected to form herringbone structure with secondary vibration damper plate 6.Another embodiment is：The main vibration damper plate 7 is arranged to
The main vibration damper plate 7 of arc, the pair vibration damper plate 6 are arranged to arc pair vibration damper plate 6, and the protrusion direction of main vibration damper plate 7 and secondary vibration damper plate 6
Protrusion direction on the contrary, main vibration damper plate 7 is connected to form herringbone structure with secondary vibration damper plate 6.
On the basis of above-mentioned, preferably, in same group of shock-damping structure, the tie point of main vibration damper plate 7 and upper supporting column 3 is
The tie point of A points, secondary vibration damper plate 6 and lower supporting rod 4 is B points, and the tie point of main vibration damper plate 7 and lower supporting rod 4 is C points, and A points are located at
The surface of B points, C points.
In addition, being equipped with machine oil 8 between upper supporting column 3 and lower supporting rod 4, the liquid level of machine oil 8 is parallel with the top surface of upper supporting column 3.
When spring follows the string deformation, machine oil 8 can be overflowed by the gap between enclosure wall 5 and upper supporting column 3, while play prompting spring
The effect of actual effect, preferred embodiment are to be equipped with machine oil overflow launder 11 in the top surface of upper supporting column 3, which is annular groove.
In addition, in same group of shock-damping structure, pressure sensor 13 is provided between secondary vibration damper plate 6 and lower supporting rod 4, in master
Pressure sensor 13 is provided between vibration damper plate 7 and upper supporting column 3 or lower supporting rod 4.
Embodiment 1
A kind of forging equipment, is included in the groove 1 that ground excavates, and concrete layer 2 is equipped with bottom surface around groove 1,
Upper supporting column 3 and lower supporting rod 4 are equipped with the center of groove 1, enclosure wall 5 is equipped with around upper supporting column 3 and lower supporting rod 4, which can
Using brick wall structure, hard rubber pad 9 is lined with below lower supporting rod 4, forging equipment 12 is fixed on above upper supporting column 3；In enclosure wall 5
1 side wall of outer layer and groove between be filled with sandstone layer 10.Multigroup shock-damping structure is equipped between upper supporting column 3 and lower supporting rod 4, it is more
Group damping device is evenly distributed with along the cross-wise direction of groove 1, is realized.The forging press 12 includes rack 122, is arranged in rack 122
Hydraulic cylinder 121, be arranged on the guide rails 128 of 122 both sides of rack, briquetting 127 is provided between two guide rails 128, briquetting 127 can
Being slided up and down along the short transverse of guide rail 128, the hydraulic axis of hydraulic cylinder 121 stretches into the lower section of rack 122 after passing through rack 122, and
Contiguous block 123 is connected with the end of hydraulic axis, linkage is symmetrically arranged with the arranged on left and right sides of hydraulic axis, the connecting rod machine
Structure includes first connecting rod 124, second connecting rod 125 and third connecting rod 126, first connecting rod 124, second connecting rod 125 and third connecting rod
126 is hinged, and the other end of first connecting rod 124 is articulated with rack 122, and the other end of second connecting rod 125 is hinged
In contiguous block 123, the other end of third connecting rod 126 is articulated with briquetting 127.
Embodiment 2
On the basis of embodiment one, which includes main vibration damper plate 7, the both ends of main vibration damper plate 7 respectively with upper branch
Column 3, lower supporting rod 4 connect, and secondary vibration damper plate 6, the other end and upper supporting column 3 or the lower branch of secondary vibration damper plate 6 are also associated with main vibration damper plate 7
Column 4 connects.When forging equipment 12 is downwardly applied to active force, main vibration damper plate 7, secondary vibration damper plate 6 will be extruded, main vibration damper plate 7, pair subtract
Shake plate 6 and produce deformation, so as to fulfill damping, the purpose of buffering.
Embodiment 3
On the basis of embodiment two, which is arranged to the main vibration damper plate 7 of arc, which is arranged to arc
Shape pair vibration damper plate 6, and the protrusion direction of main vibration damper plate 7 is consistent with the protrusion direction of secondary vibration damper plate 6, main vibration damper plate 7 and secondary damping
The connection of plate 6 forms herringbone structure.
Embodiment 4
On the basis of embodiment two, which is arranged to the main vibration damper plate 7 of arc, which is arranged to arc
Shape pair vibration damper plate 6, and the protrusion direction of main vibration damper plate 7 and the protrusion direction of secondary vibration damper plate 6 are on the contrary, main vibration damper plate 7 and secondary damping
The connection of plate 6 forms herringbone structure.
Embodiment 5
On the basis of embodiment three or example IV, in same group of shock-damping structure, the company of main vibration damper plate 7 and upper supporting column 3
Contact is A points, and the tie point of secondary vibration damper plate 6 and lower supporting rod 4 be B points, and the tie point of main vibration damper plate 7 and lower supporting rod 4 is C points, and A
Point is positioned at B points, the surface of C points.
Embodiment 6
On the basis of above-described embodiment, machine oil 8 is housed between upper supporting column 3 and lower supporting rod 4, the liquid level of machine oil 8 with it is upper
The top surface of pillar 3 is parallel.When spring follows the string deformation, machine oil 8 can be overflowed by the gap between enclosure wall 5 and upper supporting column 3,
Play the role of prompting spring actual effect at the same time.Preferred embodiment is to be equipped with machine oil overflow launder 11 in the top surface of upper supporting column 3, should
Overflow launder is annular groove.
Embodiment 7
On the basis of above-described embodiment, in same group of shock-damping structure, it is provided between secondary vibration damper plate 6 and lower supporting rod 4
Pressure sensor 13, pressure sensor 13 is provided between main vibration damper plate 7 and upper supporting column 3 or lower supporting rod 4.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of forging equipment, including forging press (12), the groove (1) that is excavated on ground, around groove (1) with bottom surface
Equipped with concrete layer (2), hard rubber pad (9), lower supporting rod (4) and upper supporting column (3) are equipped with successively from the bottom up in groove (1),
Shock-damping structure is equipped between upper supporting column (3) and lower supporting rod (4), is equipped with and encloses in the outer periphery of upper supporting column (3) and lower supporting rod (4)
Wall (5), forging press (12) are installed on upper supporting column (3), and sandstone are filled between the outer layer and groove (1) side wall of enclosure wall (5)
Layer (10)；It is characterized in that：Forging press (12) includes rack (122), the hydraulic cylinder (121) being arranged in rack (122), sets
The guide rail (128) in rack (122) both sides is put, is provided with briquetting (127) between two guide rails (128), briquetting (127) can be along leading
The short transverse of rail (128) slides up and down, and the hydraulic axis of hydraulic cylinder (121) is stretched under rack (122) after passing through rack (122)
Side, and contiguous block (123) is connected with the end of hydraulic axis, linkage is symmetrically arranged with the arranged on left and right sides of hydraulic axis, should
Linkage includes first connecting rod (124), second connecting rod (125) and third connecting rod (126), first connecting rod (124), second connecting rod
(125) and third connecting rod (126) is hinged, and the other end of first connecting rod (124) is articulated with rack (122), the
The other end of two connecting rods (125) is articulated with contiguous block (123), and the other end of third connecting rod (126) is articulated with briquetting (127).
A kind of 2. forging equipment as claimed in claim 1, it is characterised in that：The shock-damping structure includes main vibration damper plate (7), and master subtracts
The both ends of shake plate (7) are connected with upper supporting column (3), lower supporting rod (4) respectively, and secondary vibration damper plate (6) is also associated with main vibration damper plate (7),
The other end of secondary vibration damper plate (6) is connected with upper supporting column (3) or lower supporting rod (4).
A kind of 3. forging equipment as claimed in claim 2, it is characterised in that：Main vibration damper plate (7) is the main vibration damper plate of arc (7),
Secondary vibration damper plate (6) is arc pair vibration damper plate (6), and the protrusion direction of main vibration damper plate (7) and the protrusion direction one of secondary vibration damper plate (6)
Cause, main vibration damper plate (7) is connected to form herringbone structure with secondary vibration damper plate (6).
A kind of 4. forging equipment as claimed in claim 2, it is characterised in that：Main vibration damper plate (7) is the main vibration damper plate of arc (7),
Secondary vibration damper plate (6) is arc pair vibration damper plate (6), and the protrusion direction of main vibration damper plate (7) and the protrusion direction phase of secondary vibration damper plate (6)
Instead, main vibration damper plate (7) is connected to form herringbone structure with secondary vibration damper plate (6).
A kind of 5. forging equipment as described in claim 3 or 4, it is characterised in that：In same group of shock-damping structure, main vibration damper plate
(7) be A points with the tie point of upper supporting column (3), the tie point of secondary vibration damper plate (6) and lower supporting rod (4) is B points, main vibration damper plate (7) and
The tie point of lower supporting rod (4) is C points, and A points are located at B points, the surface of C points.
A kind of 6. forging equipment as claimed in claim 2, it is characterised in that：It is equipped between upper supporting column (3) and lower supporting rod (4)
Machine oil (8), the liquid level of machine oil (8) are parallel with the top surface of upper supporting column (3).
A kind of 7. forging equipment as claimed in claim 6, it is characterised in that：Machine oil overflow is equipped with the top surface of upper supporting column (3)
Groove (11), the overflow launder (11) are annular groove.
A kind of 8. forging equipment as claimed in claim 2, it is characterised in that：In same group of shock-damping structure, in secondary vibration damper plate (6)
Pressure sensor (13) is provided between lower supporting rod (4), is set between main vibration damper plate (7) and upper supporting column (3) or lower supporting rod (4)
It is equipped with pressure sensor (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720725957.1U CN207325856U (en) | 2017-06-21 | 2017-06-21 | A kind of forging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720725957.1U CN207325856U (en) | 2017-06-21 | 2017-06-21 | A kind of forging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207325856U true CN207325856U (en) | 2018-05-08 |
Family
ID=62425606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720725957.1U Expired - Fee Related CN207325856U (en) | 2017-06-21 | 2017-06-21 | A kind of forging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207325856U (en) |
-
2017
- 2017-06-21 CN CN201720725957.1U patent/CN207325856U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 |
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| CF01 | Termination of patent right due to non-payment of annual fee |