CN105964862B - Forging mold installation and positioning structure - Google Patents
Forging mold installation and positioning structure Download PDFInfo
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- CN105964862B CN105964862B CN201610380005.0A CN201610380005A CN105964862B CN 105964862 B CN105964862 B CN 105964862B CN 201610380005 A CN201610380005 A CN 201610380005A CN 105964862 B CN105964862 B CN 105964862B
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- wedge
- mounting groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
- B21J13/03—Die mountings
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- Mechanical Engineering (AREA)
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Abstract
The invention provides a kind of forging mold installation and positioning structure, and it solves prior art and positions the technical problems such as insecure, easy sticking to mould.Including mutual corresponding upper die body and lower mold body, upper die body connects with forging hammer body phase, forging hammer body lower end has upper mould mounting groove, upper die body upper end has the upper mould installation raised line corresponding with upper mould mounting groove, upper mould installation raised line side is resisted against mould mounting groove side, opposite side forms the first drift gap with upper mould mounting groove opposite side, first drift gap is inserted with installs raised line and upper mould mounting groove leans and wedge shaped upper wedge-shaped positioning body with upper mould respectively, the upper drift positioning component that wedge-shaped positioning body can be made to be mutually located with forging hammer body is provided between upper wedge-shaped positioning body and forging hammer body, said structure is correspondingly arranged up and down.There is the present invention wedge-shaped positioning body to be not easy from mold base to depart from forging process, easy for installation, the advantages that firm position.
Description
Technical field
The invention belongs to technical field of forging, more particularly, to a kind of forging mold installation and positioning structure.
Background technology
Forging equipment refers to be used for the plant equipment for shaping and separating in forging is processed.Forging equipment includes shaping
Forging hammer, punching machine, hydraulic press, fly press and horizontal forging and upsetting machine, and forging manipulator, uncoiler, arbor press, cutter
Etc. auxiliary equipment.Wherein, forging hammer is to make to fall part using transmission mechanisms such as air pressure or hydraulic pressure, including piston, hammer stem, tup,
The generation such as upper anvil campaign simultaneously accumulates kinetic energy, is applied to forging in the extremely short time, is allowed to obtain plastic deformation ability, completes various forgings
Press the metal forming machinery of technique.In the prior art, mould is fixed on mold base by drift, but is shaken caused by forging process
It is larger, it is fixed using this fixing means, mould easily departs from from mold base, larger potential safety hazard be present；And
When forging complexity, upper and lower mould is easy to extract mold base together by forging adhesion.
In order to solve the problems, such as that prior art is present, people have carried out long-term exploration, it is proposed that miscellaneous solution
Scheme.For example, Chinese patent literature discloses a kind of mounting structure [application number of forging mold：201420836483.4], its
Including die holder and forging mold, die holder includes upper bolster and die shoe, and forging mold includes upper mould and lower mould, it is characterised in that：
Upper die and lower die are installed on upper bolster, in die shoe by Upper Die-sleeve, lower die-sleeve respectively, and between upper mould and Upper Die-sleeve, lower mould is with
Gap is distinguished between die sleeve to coordinate, and is also realized respectively by hanging pin structure between upper mould and Upper Die-sleeve, between lower mould and lower die-sleeve
The locking of upper die and lower die.
Although such scheme solves the insecure problem of prior art installation locking, the program to a certain extent
Still there is：The installation inconvenience of mould and mold base, fixed effect is poor, easily departs from from mold base.
The content of the invention
A kind of regarding the issue above, the present invention provides reasonable in design, simple in construction, forge mould of fixation
Has installation and positioning structure.
To reach above-mentioned purpose, present invention employs following technical proposal：This forging mold installation and positioning structure, including it is upper
The upper die body and lower mold body mutually fastened down, described upper die body and the forging hammer body phase being arranged on above upper die body connect, described
Lower mold body and the die-cushion body phase being arranged on below lower mold body connect, and described forging hammer body lower end, which has along forging hammer body bottom side, to be extended
To opposite side and cross section is in the upper mould mounting groove of shape with wide top and narrow bottom, and described upper die body upper end has relative with upper mould mounting groove
Should and cross section present the upper mould installation raised line of narrow structure under width, and described upper mould installation raised line side is resisted against mould installation
Groove side, the first drift gap is formed between described upper mould installation raised line opposite side and upper mould mounting groove opposite side, it is described
First drift gap at least one end is inserted with installs raised line and upper mould mounting groove leans and wedge shaped upper wedge with upper mould respectively
Shape positioning body, described die-cushion body upper end have it is at least one along die-cushion body side extend to opposite side and cross section present it is narrow under
The lower mould mounting groove of wide shape, described lower mold body lower end is with corresponding and cross section is in up-narrow and down-wide structure with lower mould mounting groove
Lower mould installation raised line, and described lower mould installation raised line side is resisted against lower mould mounting groove side, and the installation of described lower mould is convex
The second drift gap is formed between bar opposite side and lower mould mounting groove opposite side, second described drift gap at least one end plugs
Have and raised line and lower mould mounting groove leans and wedge shaped lower wedge-shaped positioning body is installed with lower mould respectively, described upper wedge shape positioning
The upper drift positioning component that wedge-shaped positioning body can be made to be mutually located with forging hammer body, described hyposphene are provided between body and forging hammer body
The hyposphene iron positioning component that lower wedge-shaped positioning body can be made to be mutually located with die-cushion body is provided between shape positioning body and die-cushion body.Using
Said structure, upper wedge-shaped positioning body and lower wedge-shaped positioning body are not easy to depart from upper die body and lower mold body, installation side in forging process
Just, firm position.
In above-mentioned forging mold installation and positioning structure, described upper drift positioning component is fixed including being arranged on wedge shape
Position body side and the first inclined plane that raised line sidepiece or upper mould mounting groove sidepiece lean is installed with upper mould, opposite side have with it is upper
Mould mounting groove sidepiece or upper mould install the first locating surface that raised line sidepiece leans, and the first described inclined plane and/or first are determined
Plane is provided with the first axially extending bar-shaped trough, and is provided with and can be slid axially along the first bar-shaped trough in the first described bar-shaped trough
And the first sliding shoe to be leant on the inside of sidepiece and the first bar-shaped trough, it is connected with towards upper mould on the first described sliding shoe and installs
Groove extends and can extended radially through to be provided with and head rod screw thread in the head rod of forging hammer body, described head rod
The first positioning sleeve for being connected and being leant with the external side of forging hammer.
In above-mentioned forging mold installation and positioning structure, the external side of described forging hammer has stepped hole, described positioning
It is set in stepped hole and head rod is without departing from stepped hole.
In above-mentioned forging mold installation and positioning structure, the quantity of the first described bar-shaped trough is for one and axially arranged
In the middle part of the first inclined plane, and first described bar-shaped trough one end extends to wedge-shaped positioning body front end, the first described bar shaped
The groove other end extends to wedge-shaped positioning body rear end.
In above-mentioned forging mold installation and positioning structure, described hyposphene iron positioning component is fixed including being arranged on lower wedge shape
Position body side and the second inclined plane to be leant with lower mould installation raised line sidepiece or lower mould mounting groove sidepiece, opposite side is with
Mould mounting groove sidepiece or lower mould install the second locating surface that raised line sidepiece leans, and the second described inclined plane and/or second are determined
Plane is provided with the second axially extending bar-shaped trough, and be provided with the second described bar-shaped trough can be along the second bar shaped fluted shaft to slip
And the second sliding shoe to be leant on the inside of sidepiece and the second bar-shaped trough, it is connected with towards lower mould on described the second sliding shoe and installs
Groove extends and can extend radially through the second connecting rod in die-cushion body, and the second described connecting rod is provided with and the second connecting rod screw thread
It is connected and is resisted against the second positioning sleeve of the external side of die-cushion.
In above-mentioned forging mold installation and positioning structure, the quantity of the second described bar-shaped trough is for one and axially arranged
In the middle part of the second inclined plane, and second described bar-shaped trough one end extends to lower wedge-shaped positioning body front end, the second described bar shaped
The groove other end extends to lower wedge-shaped positioning body rear end.
In above-mentioned forging mold installation and positioning structure, the first described inclined plane and/or the first locating surface are provided with
First damping structure；The second described inclined plane and/or the second locating surface are provided with the second damping structure.
In above-mentioned forging mold installation and positioning structure, the first described damping structure inclines including being separately positioned on first
The first damping layer on inclined-plane and the first locating surface, and the first described damping layer and upper wedge-shaped positioning body are connected as a single entity formula knot
Structure；The second described damping structure includes being separately positioned on the second inclined plane and the second damping layer on the second locating surface, and institute
The second damping layer stated is connected as a single entity structure with lower wedge-shaped positioning body.
In above-mentioned forging mold installation and positioning structure, the first described damping layer and the second damping layer are viscoplasticity
Material layer.
In above-mentioned forging mold installation and positioning structure, described die-cushion body is arranged in the mounting groove of base, and
Mounting groove is provided with the fixation drift that die-cushion body side can be made to be resisted against mounting groove side.
Compared with prior art, it is the advantages of this forging mold installation and positioning structure：Upper wedge-shaped positioning body and hyposphene
Shape positioning body is not easy to depart from upper die body and lower mold body, easy for installation, firm position in forging process.
Brief description of the drawings
Fig. 1 provides the structural representation of the embodiment of the present invention.
Fig. 2 provides the structural representation of drift positioning component in the present invention.
Fig. 3 provides the structural representation of hyposphene iron positioning component of the present invention.
In figure, upper die body 4, forging hammer body 41, upper mould installation raised line 42, upper wedge-shaped positioning body 5, the first inclined plane 51, upper wedge
Iron positioning component 52, the first bar-shaped trough 53, the first sliding shoe 54, head rod 55, the first positioning sleeve 56, stepped hole 57, under
Die body 6, die-cushion body 61, lower mould installation raised line 62, lower wedge-shaped positioning body 7, the second inclined plane 71, hyposphene iron positioning component 72, the
Two bar-shaped troughs 73, the second sliding shoe 74, the second connecting rod 75, the second positioning sleeve 76.
Embodiment
As shown in Figure 1 to Figure 3, this forging mold installation and positioning structure, including the upper die body 4 mutually fastened up and down and lower mould
Body 6, upper die body 4 are connected with being arranged on the forging hammer body 41 of the top of upper die body 4, lower mold body 6 and the die-cushion for being arranged on the lower section of lower mold body 6
Body 61 is connected, and the lower end of forging hammer body 41 is in shape with wide top and narrow bottom with opposite side and cross section is extended to along the bottom side of forging hammer body 41
Upper mould mounting groove, the upper end of upper die body 4 present the upper mould installation of narrow structure under width with the corresponding and cross section with upper mould mounting groove
Raised line 42, and upper mould installation raised line 42 side is resisted against mould mounting groove side, the upper mould installation opposite side of raised line 42 is pacified with upper mould
The first drift gap is formed between tankage opposite side, the first drift gap at least one end is inserted with installs raised line 42 with upper mould respectively
Leant with upper mould mounting groove and wedge shaped upper wedge-shaped positioning body 5, the upper end of die-cushion body 61 have at least one along die-cushion body 61
Side extends to opposite side and cross section is in the lower mould mounting groove of up-narrow and down-wide shape, and the lower end of lower mold body 6 has and lower mould mounting groove
Raised line 62 is installed in corresponding and cross section in the lower mould of up-narrow and down-wide structure, and lower mould installation raised line 62 side is resisted against lower mould peace
Tankage side, the second drift gap, the second drift are formed between the lower mould installation opposite side of raised line 62 and lower mould mounting groove opposite side
Gap at least one end is inserted with installs that raised line 62 and lower mould mounting groove lean and wedge shaped lower wedge shape positions with lower mould respectively
Body 7, the upper wedge that wedge-shaped positioning body 5 can be made to be mutually located with forging hammer body 41 is provided between upper wedge-shaped positioning body 5 and forging hammer body 41
Iron positioning component 52, being provided between lower wedge-shaped positioning body 7 and die-cushion body 61 can make lower wedge-shaped positioning body 7 and die-cushion body 61 mutually fixed
The hyposphene iron positioning component 72 of position.Using said structure, upper wedge-shaped positioning body and lower wedge-shaped positioning body are not easy in forging process
Depart from from mold base, easy for installation, firm position.
Specifically, upper drift positioning component 52 includes being arranged on the wedge-shaped side of positioning body 5 and installs raised line 42 with upper mould
The first inclined plane 51 that sidepiece or upper mould mounting groove sidepiece lean, opposite side has to be installed with upper mould mounting groove sidepiece or upper mould
The first locating surface that the sidepiece of raised line 42 leans, the first inclined plane 51 and/or the first locating surface are provided with axially extending first
Bar-shaped trough 53, and 53 interior be provided with of the first bar-shaped trough can slide axially along the first bar-shaped trough 53 and on the inside of sidepiece and the first bar-shaped trough 53
The first sliding shoe 54 to lean, it is connected with the first sliding shoe 54 towards upper mould mounting groove and extends and can extend radially through in forging hammer
The head rod 55 of body 41, head rod 55 be provided be connected with the screw thread of head rod 55 and with the outside phase of forging hammer body 41
Against the first positioning sleeve 56, the outside of forging hammer body 41 has stepped hole 57, and positioning is set in stepped hole 57 and first connects
Bar 55 for one and is axially disposed within the middle part of the first inclined plane 51 without departing from stepped hole 57, the quantity of the first bar-shaped trough 53, and the
The one end of one bar-shaped trough 53 extends to the wedge-shaped front end of positioning body 5, after the other end of the first bar-shaped trough 53 extends to wedge-shaped positioning body 5
End.
Further, hyposphene iron positioning component 72 includes being arranged on the lower side of wedge-shaped positioning body 7 and installs raised line with lower mould
The second inclined plane 71 that 62 sidepieces or lower mould mounting groove sidepiece lean, opposite side has pacifies with lower mould mounting groove sidepiece or lower mould
The second locating surface for leaning of the dress sidepiece of raised line 62, the second inclined plane 71 and/or the second locating surface are provided with axially extending the
Two bar-shaped troughs 73, and be provided with and can be slid axially along the second bar-shaped trough 73 and in sidepiece and the second bar-shaped trough 73 in the second bar-shaped trough 73
The second sliding shoe 74 that side leans, it is connected with the second sliding shoe 74 towards lower mould mounting groove and extends and can extend radially through in mould
Second connecting rod 75 of pad 61, the second connecting rod 75 is provided with is connected and is resisted against die-cushion body 61 with the screw thread of the second connecting rod 75
Second positioning sleeve 76 in outside, the quantity of the second bar-shaped trough 73 for one and are axially disposed within the middle part of the second inclined plane 71, and the
The one end of two bar-shaped trough 73 extends to the lower front end of wedge-shaped positioning body 7, after the other end of the second bar-shaped trough 73 extends to lower wedge-shaped positioning body 7
End.
Further, the first inclined plane 51 and/or the first locating surface are provided with the first damping structure；Second inclined plane 71
And/or second locating surface be provided with the second damping structure, the first damping structure includes being separately positioned on the first inclined plane 51 and the
The first damping layer on one locating surface, and the first damping layer is connected as a single entity structure with upper wedge-shaped positioning body 5；Second damping structure
Including the second damping layer being separately positioned on the second inclined plane 71 and the second locating surface, and the second damping layer positions with lower wedge shape
Body 7 is connected as a single entity structure, and the first damping layer and the second damping layer are viscoelastic material layer, and die-cushion body 61 is arranged on base
In mounting groove, and the fixation drift that the side of die-cushion body 61 can be made to be resisted against mounting groove side is provided with mounting groove.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although upper die body 4, forging hammer body 41, upper mould installation raised line 42, upper wedge-shaped positioning body 5, the have more been used herein
One inclined plane 51, upper drift positioning component 52, the first bar-shaped trough 53, the first sliding shoe 54, head rod 55, the first positioning sleeve
56th, stepped hole 57, lower mold body 6, die-cushion body 61, lower mould installation raised line 62, lower wedge-shaped positioning body 7, the second inclined plane 71, lower drift
The terms such as positioning component 72, the second bar-shaped trough 73, the second sliding shoe 74, the second connecting rod 75, the second positioning sleeve 76, but do not arrange
Except the possibility using other terms.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；
Any additional limitation is construed as all to disagree with spirit of the present invention.
Claims (7)
1. a kind of forging mold installation and positioning structure, including the upper die body (4) mutually fastened up and down and lower mold body (6), described
Upper die body (4) is connected with the forging hammer body (41) being arranged on above upper die body (4), and described lower mold body (6) is with being arranged on lower mold body
(6) the die-cushion body (61) below is connected, and described forging hammer body (41) lower end has to be extended to separately along forging hammer body (41) bottom side
Side and cross section are in the upper mould mounting groove of shape with wide top and narrow bottom, and described upper die body (4) upper end has relative with upper mould mounting groove
Should and cross section present narrow structure under width upper mould installation raised line (42), and described upper mould installation raised line (42) side be resisted against
Upper mould mounting groove side, the first drift is formed between described upper mould installation raised line (42) opposite side and upper mould mounting groove opposite side
Gap, described the first drift gap at least one end is inserted with to lean with upper mould installation raised line (42) and upper mould mounting groove respectively
And wedge shaped upper wedge-shaped positioning body (5), described die-cushion body (61) upper end has at least one prolongs along die-cushion body (61) side
Extend opposite side and cross section is in the lower mould mounting groove of up-narrow and down-wide shape, described lower mold body (6) lower end has and lower mould is installed
Groove is corresponding and raised line (62), and described lower mould installation raised line (62) side are installed in cross section in the lower mould of up-narrow and down-wide structure
It is resisted against lower mould mounting groove side, the is formed between described lower mould installation raised line (62) opposite side and lower mould mounting groove opposite side
Two drift gaps, described the second drift gap at least one end is inserted with installs raised line (62) and lower mould mounting groove with lower mould respectively
Lean and wedge shaped lower wedge-shaped positioning body (7), it is characterised in that described upper wedge-shaped positioning body (5) and forging hammer body (41)
Between be provided with the upper drift positioning component (52) that can be mutually located wedge-shaped positioning body (5) and forging hammer body (41), under described
Being provided between wedge-shaped positioning body (7) and die-cushion body (61) can be such that lower wedge-shaped positioning body (7) is mutually located down with die-cushion body (61)
Drift positioning component (72)；Described upper drift positioning component (52) include be arranged on wedge-shaped positioning body (5) side and with it is upper
Mould installs the first inclined plane (51) that raised line (42) sidepiece or upper mould mounting groove sidepiece lean, and opposite side has to be installed with upper mould
The first locating surface that groove sidepiece or upper mould installation raised line (42) sidepiece lean, described the first inclined plane (51) and/or first
Locating surface is provided with axially extending the first bar-shaped trough (53), and interior be provided with of described the first bar-shaped trough (53) can be along the first bar shaped
The first sliding shoe (54) that groove (53) slides axially and leant on the inside of sidepiece and the first bar-shaped trough (53), described first slides
It is connected with block (54) and extends towards upper mould mounting groove and the head rod (55) in forging hammer body (41) can be extended radially through, it is described
Head rod (55) be provided be connected with head rod (55) screw thread and with forging hammer body (41) outside lean first
Positioning sleeve (56)；There is stepped hole (57), described positioning is set in stepped hole (57) on the outside of described forging hammer body (41)
And head rod (55) is without departing from stepped hole (57)；The quantity of described the first bar-shaped trough (53) is one and is axially disposed within
In the middle part of first inclined plane (51), and described the first bar-shaped trough (53) one end extends to wedge-shaped positioning body (5) front end, described
First bar-shaped trough (53) other end extends to wedge-shaped positioning body (5) rear end.
2. forging mold installation and positioning structure according to claim 1, it is characterised in that described hyposphene iron positioning component
(72) include being arranged on lower wedge-shaped positioning body (7) side and offseted with lower mould installation raised line (62) sidepiece or lower mould mounting groove sidepiece
The second inclined plane (71) leaned on, opposite side have the to be leant with lower mould mounting groove sidepiece or lower mould installation raised line (62) sidepiece
Two locating surfaces, described the second inclined plane (71) and/or the second locating surface are provided with axially extending the second bar-shaped trough (73), and
Being provided with described the second bar-shaped trough (73) can slide axially along the second bar-shaped trough (73) and in sidepiece and the second bar-shaped trough (73)
The second sliding shoe (74) that side leans, it is connected with described the second sliding shoe (74) towards lower mould mounting groove extension and can footpath
To the second connecting rod (75) through die-cushion body (61), described the second connecting rod (75) is provided with and the second connecting rod (75)
The second positioning sleeve (76) that screw thread is connected and is resisted against on the outside of die-cushion body (61).
3. forging mold installation and positioning structure according to claim 2, it is characterised in that described the second bar-shaped trough (73)
Quantity for one and be axially disposed within the middle part of the second inclined plane (71), and described the second bar-shaped trough (73) one end extends to down
Wedge-shaped positioning body (7) front end, described the second bar-shaped trough (73) other end extend to lower wedge-shaped positioning body (7) rear end.
4. forging mold installation and positioning structure according to claim 2, it is characterised in that described the first inclined plane (51)
And/or first locating surface be provided with the first damping structure；Described the second inclined plane (71) and/or the second locating surface are provided with the
Two damping structures.
5. forging mold installation and positioning structure according to claim 4, it is characterised in that the first described damping structure bag
Include and be separately positioned on the first inclined plane (51) and the first damping layer on the first locating surface, and the first described damping layer and upper wedge
Shape positioning body (5) is connected as a single entity structure；The second described damping structure includes being separately positioned on the second inclined plane (71) and the
The second damping layer on two locating surfaces, and the second described damping layer is connected as a single entity structure with lower wedge-shaped positioning body (7).
6. forging mold installation and positioning structure according to claim 5, it is characterised in that the first described damping layer and
Two damping layers are viscoelastic material layer.
7. forging mold installation and positioning structure according to claim 1, it is characterised in that described die-cushion body (61) is set
In the mounting groove of base, and the fixation drift that die-cushion body (61) side can be made to be resisted against mounting groove side is provided with mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380005.0A CN105964862B (en) | 2016-05-31 | 2016-05-31 | Forging mold installation and positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380005.0A CN105964862B (en) | 2016-05-31 | 2016-05-31 | Forging mold installation and positioning structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105964862A CN105964862A (en) | 2016-09-28 |
| CN105964862B true CN105964862B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610380005.0A Active CN105964862B (en) | 2016-05-31 | 2016-05-31 | Forging mold installation and positioning structure |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2072273C1 (en) * | 1993-09-23 | 1997-01-27 | Василий Павлович Беркутов | Block stamp |
| RU2100126C1 (en) * | 1996-05-06 | 1997-12-27 | Осотова Виола Васильевна | Assembly for joining die holder with anvil block of hammer |
| CN201776385U (en) * | 2010-07-26 | 2011-03-30 | 江阴南工锻造有限公司 | Convenient-to-dismount anvil block |
| CN201776386U (en) * | 2010-07-26 | 2011-03-30 | 江阴南工锻造有限公司 | Anvil block with convenient positioning function |
| CN203592104U (en) * | 2013-11-13 | 2014-05-14 | 河北钢诺新材料科技有限公司 | Impact forging machine |
| CN205816689U (en) * | 2016-05-31 | 2016-12-21 | 德清恒富机械有限公司 | Forging mold installation and positioning structure |
-
2016
- 2016-05-31 CN CN201610380005.0A patent/CN105964862B/en active Active
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| CN105964862A (en) | 2016-09-28 |
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Effective date of registration: 20190430 Address after: 215000 Zixu Road, Xukou Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Qianglong Casting and Forging Co., Ltd. Address before: 313217 Yangjiazhuang, Baifudu Village, Xin'an Town, Deqing County, Huzhou City, Zhejiang Province Patentee before: DEQING HENGFU MACHINERY CO., LTD. |
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