CN111250755A - Horizontal boring machine for cutting cylindrical workpiece - Google Patents
Horizontal boring machine for cutting cylindrical workpiece Download PDFInfo
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- CN111250755A CN111250755A CN202010091962.8A CN202010091962A CN111250755A CN 111250755 A CN111250755 A CN 111250755A CN 202010091962 A CN202010091962 A CN 202010091962A CN 111250755 A CN111250755 A CN 111250755A
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- arc
- cutting
- head
- boring machine
- ellipsoid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
Abstract
The invention discloses a horizontal boring machine for cutting cylindrical workpieces, which structurally comprises a chassis, a sliding rod, a supporting platform, a cutting head and a main adjusting box, wherein the supporting platform is arranged on the upper surface of the chassis, the sliding rod is welded at the top end of the chassis, the workpieces are fixed on the supporting platform through adjustment of the sliding rod, an inner bag continuously pushes out a fixed top head through self-expansion force, the outer layer has certain hard-inclined force, when the inner wall is cut to be exposed, an ellipsoid props against an arc opening to move, the outer layer has fixed supporting force and can smoothly pass through, the cutting head continuously rotates to contact the exposed opening, the smooth passage can be smoothly realized, the arc surface can assist the workpieces to slide into the inner part, the large-area surface propping angle can catch the bottom end surface of the large-area propping angle, when the large-area propping angle is inwards extruded by the force of the workpieces, large-area propping external force can prop against the arc surface to carry out certain force on the workpieces, when the workpiece is placed on the table top, the support can be adjusted according to the radian of the workpiece, so that the workpiece cannot move excessively.
Description
Technical Field
The invention belongs to the field of boring mills, and particularly relates to a horizontal boring mill for cutting a cylindrical workpiece.
Background
When cutting a cylindrical large-sized workpiece, it is necessary to mount the workpiece on a table in a laid-down state and perform a moving cutting process in a horizontal direction on the surface of the workpiece by rotation of a cutting head.
Based on the findings of the inventor, the conventional boring machine for cutting mainly has the following defects, such as:
1. when the concave-convex thickness of the inner wall of the workpiece is different and the workpiece needs to be cut to a thinner position to be exposed outside, the cutting head is easy to break the opening with smaller thickness when the opening is exposed, and the cutting head continuously rotates to break the corner of the opening.
2. When one end of a workpiece needs to be machined, the other end of the workpiece needs to be fixed, the workbench is fixed, when a cylindrical workpiece is cut, the whole stress point can deviate, the fixed point on one side is difficult to fix the workpiece, and the workpiece is easy to roll.
Therefore, a horizontal boring machine for cutting cylindrical workpieces needs to be provided.
Disclosure of Invention
In order to solve the problems that when the concave-convex thickness of the inner wall of a workpiece is different and the workpiece needs to be cut to a thinner position to be exposed outside, the cutting head is easy to be exposed at a port, the cutting head continuously rotates to break the port with smaller thickness to damage the corner of the workpiece, when one end of the workpiece needs to be machined, the other end of the workpiece needs to be fixed, the workbench is fixed in size, when a cylindrical workpiece is cut, the whole stress point can deviate, the fixing point on one side is difficult to fix the workpiece, and the workpiece is easy to roll.
The invention relates to a horizontal boring machine for cutting a cylindrical workpiece, which has the purpose and the effect and is achieved by the following specific technical means:
the structure of the device comprises a chassis, a sliding rod, a saddle, a cutting head, a main adjusting box and a control body.
The saddle is installed on the upper surface of the underframe, the sliding rod is welded at the top end of the underframe, the cutting head is connected with the control body, the control body is movably connected with the master control box, and the master control box is welded on the upper surface of the underframe.
As a further improvement of the invention, the cutting head comprises a sequential notch, expanding balls, an interlayer and a middle fixed core, the external surface of each expanding ball is provided with the sequential notch, the expanding balls are embedded in the interlayer, the interlayer is sleeved on the external surface of the middle fixed core and is positioned on the same axis, the expanding balls are uniformly distributed in a circular shape, the sequential notch is of an arc structure, and the middle fixed core is of a cylindrical structure.
As a further improvement of the invention, the expanding support ball comprises a hook head, an inner bag, two fixed top heads, two cutting shells and a limit ring, wherein the hook head is attached to the outer surface of the limit ring, the inner bag is embedded in the inner part of the limit ring, the fixed top heads are connected with the cutting shells, the cutting shells are abutted to the outer surface of the limit ring, the two fixed top heads are symmetrically distributed, the two hook heads are arranged, and the limit ring is of a spherical structure.
As a further improvement of the invention, the fixed jacking head comprises a guide angle, an extension head, two arc edges, a fixed surface block and an outer pocket layer, wherein the guide angle is connected with the extension head, the extension head is embedded in the outer pocket layer, the guide angle is connected with the extension head, the arc edges are abutted against the outer surface of the fixed surface block, the arc edges are of arc structures, the two guide angles are symmetrically distributed, and the fixed surface block is of an arc structure.
As a further improvement of the invention, the smooth notch comprises a rear supporting layer, an arc core, an ellipsoid support, rubber edges and an arc opening, the rear supporting layer is attached to the outer surface of the arc core, one end of the arc core, far away from the rear supporting layer, is connected with the ellipsoid support, the rubber edges are mounted on the outer surface of the ellipsoid support, the ellipsoid support is embedded into the arc opening, the arc core is of an arc structure, the ellipsoid support is provided with four semi-spherical structures, and the rubber edges are made of rubber materials and have certain pull-back property.
As a further improvement of the invention, the support table comprises a bottom block, a uniform force ball, large surface support angles, cambered surfaces and a positioning layer, wherein the uniform force ball is embedded in the bottom block, the large surface support angles are connected with the positioning layer, the cambered surfaces support the outer surface of the positioning layer, seven uniform force balls are arranged, the upper ends of the large surface support angles are arc-surface-shaped, and the lower ends of the large surface support angles are sharp angles.
As a further improvement of the invention, the large surface supporting angle comprises a base angle, a middle ellipsoid, filling glue and an arc protection head, wherein the middle ellipsoid is arranged between the base angle and the arc protection head, the filling glue is attached to the outer surface of the arc protection head, the number of the middle ellipsoids is five, and the arc protection head is of an arc structure.
As a further improvement of the invention, the cambered surface comprises a gradually expanding arc, glue isolating and a middle supporting block, the glue isolating is attached to the outer surface of the gradually expanding arc, the glue isolating is arranged on the outer surface of the middle supporting block, the glue isolating is of an arc structure, and the middle supporting block is of a semicircular structure.
Compared with the prior art, the invention has the following beneficial effects:
1. the adjustment through the slide bar is fixed its work piece on the saddle, the inner bag is with its solid top continuously extrapolate through the power of self inflation, let the skin have certain tendency hard power, when cutting the inner wall and exposing, prop the ellipsoid and conflict when the arc mouth is movable, let the skin have the power of a fixed support, follow the change of propping the ellipsoid and change by the arc core of pocket in inside, let the gradient on inside direction angle support outer pocket layer, when conflicting the exposure, the rounding off that can be smooth passes through, last rotation contact exposure at the cutting head, rounding off that can be smooth passes through.
2. Its cambered surface will assist the work piece and slide inside, live big face angle of support bottom surface by the pocket of big face angle of support large tracts of land, when big face angle of support receives the power of work piece and inwards extrudees, the conflict external force of large tracts of land to inwards carry out the exhibition, let the cambered surface carry out the support of a definite force to the work piece and attach, when the mesa is arranged in to the work piece, adjust the support according to the radian of work piece and attach, let its removal that can not be excessive.
Drawings
FIG. 1 is a schematic structural diagram of a horizontal boring machine for cutting cylindrical workpieces according to the present invention.
Fig. 2 is a left side view of the internal structure of a cutting head according to the present invention.
Fig. 3 is a schematic front view of an internal structure of the expanding ball according to the present invention.
Fig. 4 is a schematic front view of the internal structure of the plug of the present invention.
Fig. 5 is a schematic front view of an internal structure of a compliant notch according to the present invention.
FIG. 6 is a left side view of the inner structure of the pallet of the present invention.
Fig. 7 is a schematic front view of an internal structure with a large surface angle.
FIG. 8 is a schematic view of a front view of an inner structure of a cambered surface according to the present invention.
In the figure: the device comprises an underframe-qw 11, a sliding rod-qw 22, a saddle-qw 33, a cutting head-qw 44, a main adjusting box-qw 55, a control body-qw 66, a cis-notch-a 1a, an expanding ball-a 2a, a spacer-a 3a, a middle solid core-a 4a, a hook head-g 11, an inner capsule-g 22, a top fixing head-g 33, a shell cutting-g 44, a limiting ring-g 55, a guide angle-zx 1, an extending head-zx 2, an arc edge-zx 3, a solid surface block-zx 4, an outer pocket layer-zx 5, a rear supporting layer-hh 01, an arc core-hh 02, an ellipsoid supporting-hh 03, a rubber edge-hh 04, an arc opening-hh 05, a bottom block-www 1, a bottom ball-wwff, a large surface-wff-1, a middle expanding arc-1, an arc-supporting head-1, an expanding arc edge-36ee-1, a middle supporting arc-36ee-1, a middle supporting arc-expanding glue-36ee-1, a middle supporting arc-36ee-expanding glue-36ee and a middle arc-1.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example 1:
as shown in figures 1 to 5:
the invention provides a horizontal boring machine for cutting a cylindrical workpiece, which structurally comprises a base frame qw11, a sliding rod qw22, a saddle qw33, a cutting head qw44, a main adjusting box qw55 and a control body qw 66.
The pallet qw33 is mounted on the upper surface of the underframe qw11, the sliding rod qw22 is welded at the top end of the underframe qw11, the cutting head qw44 is connected with the control body qw66, the control body qw66 is movably connected with the main switch box qw55, and the main switch box qw55 is welded on the upper surface of the underframe qw 11.
The cutting head qw44 comprises a sequential notch a1a, expansion balls a2a, a spacer a3a and a middle fixing core a4a, the sequential notch a1a is mounted on the outer surface of the expansion balls a2a, the expansion balls a2a are embedded in the spacer a3a, the spacer a3a is sleeved on the outer surface of the middle fixing core a4a and located on the same axis, the expansion balls a2a are uniformly distributed in a circular shape, the sequential notch a1a is in an arc-shaped structure, the middle fixing core a4a is in a cylindrical structure, the middle fixing core a4a is fixed at the integral central part, the spacer a3a limits the installation position of the connection part, the expansion balls a2a outwards support a certain range of area, and the sequential notch a1a collides with a large area of an external object.
The expansion ball a2a comprises a hook head g11, an inner bag g22, an ejection fixing head g33, a cutting shell g44 and a limiting ring g55, the hook head g11 is attached to the outer surface of the limiting ring g55, the inner bag g22 is embedded into the limiting ring g55, the ejection fixing head g33 is connected with the cutting shell g44, the cutting shell g44 abuts against the outer surface of the limiting ring g55, the ejection fixing head g33 is provided with two parts which are symmetrically distributed, the hook head g11 is provided with two parts, the limiting ring g55 is of a ball structure, the ejection fixing head g33 enables the outer layer to have certain inclined hard force, the cutting shell g44 generates required deformation according to the internal interference force and the force contacting with the outside, the hook head g11 enables the joint part and the outside part to be better installed together, and the inner bag g22 has a certain effect on the interference force and can play a role in pushing back.
The fixed top head g33 comprises a guide angle zx1, an extension head zx2, an arc edge zx3, a fixed face block zx4 and an outer pocket layer zx5, wherein the guide angle zx1 is connected with the extension head zx2, the extension head zx2 is embedded inside the outer pocket layer zx5, the guide angle zx1 is connected with the extension head zx2, the arc edge zx3 abuts against the outer surface of the fixed face block zx4, the arc edge zx3 is of an arc structure, the guide angle zx1 is provided with two and is symmetrically distributed, the fixed face block zx4 is of an arc structure, the guide angle zx1 fixes the inclined direction of the extension joint position, the direction of the extension joint position of the extension head zx2 is connected with force, and the arc edge zx3 can enable the extension position to better collide with foreign objects.
The front notch a1a comprises a rear supporting layer hh01, an arc core hh02, an ellipsoid supporting hh03, a rubber edge hh04 and an arc opening hh05, the rear supporting layer hh01 is attached to the outer surface of the arc core hh02, one end of the arc core hh02, which is far away from the rear supporting layer hh01, is connected with the ellipsoid supporting hh03, the rubber edge hh04 is installed on the outer surface of the ellipsoid supporting hh03, the ellipsoid supporting hh03 is embedded into the arc opening hh05, the arc core hh02 is an arc-shaped structure, four of the ellipsoid supporting hh03 are arranged and are in a hemispherical structure, the rubber edge hh04 is made of rubber materials and has a certain pulling property, the arc core hh02 fixes the positions and areas of the two side connecting parts, and the ellipsoid supporting hh03 allows the outer layer to have a fixed supporting force, and the rubber edge hh04 is in a state of being pulled when being stressed.
The specific use mode and function of the embodiment are as follows:
in the invention, a cylindrical workpiece is placed on a saddle qw33 upside down, the workpiece is fixed on a saddle qw33 by adjusting a sliding rod qw22, the other end of the workpiece is controlled by a control body qw66, a cutting head qw44 of the workpiece is used for processing the workpiece, an expansion ball a2a supports the force of external expansion of an outer layer, the workpiece is cut by rotating along a notch a1a, an inner bag g22 continuously pushes out a fixed top g33 by the self-expansion force, the fixed top g33 supports a cutting shell g44 of the outer layer, when an arc opening hh05 cuts the external object, the internal supporting ellipsoid hh03 carries out outward expansion with a certain force, when the inner wall is cut to be exposed, an ellipsoid hh03 props against an arc opening hh05, the arc opening hh 8 props against the exposed opening, the ellipsoid hh 8 is driven to be exposed along the supporting shaft hh 6, and the ellipsoid is driven by an arc pocket 35h chip 3642 to change along with the arc of the protective shell 03, the shape of the sliced shell g44 is ejected by the fixed ejection head g33, the inner guide angle zx1 supports the inclination of the outer pocket layer zx5, the extension head zx2 expands the surface, the arc edge zx3 contacts and collides with the outer layer, the sliced shell g44 can have a contact foreign object with a certain radian, and when the contact foreign object is collided and exposed, the sliced shell g44 can smoothly pass through.
Example 2:
as shown in fig. 6 to 8:
the pallet qw33 comprises a bottom block www1, a uniform force ball www2, a large surface support angle www3, an arc surface www4 and a positioning layer www5, wherein the uniform force ball www2 is embedded in the bottom block www1, the large surface support angle www3 is connected with the positioning layer www5, the arc surface www4 supports against the outer surface of the positioning layer www5, seven uniform force balls www2 are arranged, the upper end of the large surface support angle www3 is arc-surface-shaped, the lower end of the large surface support angle www3 is sharp-angled, the arc surface www4 enables foreign objects to be gathered in the arc, and the large surface support angle www3 supports large-area external force, so that the external force is exerted inwards, and the uniform force ball www2 supports the external force and is uniformly distributed.
The large surface support angle www3 comprises a base angle ee1, a middle ellipsoid ee2, a filling glue ee3 and an arc head ee4, wherein the middle ellipsoid ee2 is installed between the base angle ee1 and the arc head ee4, the filling glue ee3 is attached to the outer surface of the arc head ee4, the middle ellipsoid ee2 is of an oval structure and is provided with five parts, the arc head ee4 is of an arc structure, the arc head ee4 enables external collision force to be pushed back by a certain force when the arc head ee is spread inwards, the filling glue ee3 plays a role in protecting a joint part, and the middle ellipsoid ee2 plays a role in buffering the force borne by two sides.
The cambered surface www4 comprises a divergent arc ff1, a glue separating ff2 and a middle resisting block ff3, wherein the glue separating ff2 is attached to the outer surface of the divergent arc ff1, the glue separating ff2 is installed on the outer surface of the middle resisting block ff3, the glue separating ff2 is of an arc structure, the middle resisting block ff3 is of a semicircular structure, the middle resisting block ff3 enables the whole body to have a middle force, the divergent arc ff1 evenly bears the external force, and the glue separating ff2 plays a role in pull-back protection on a joint part.
The specific use mode and function of the embodiment are as follows:
in the invention, when a workpiece is placed on a pallet qw33, an arc surface www4 of the workpiece can assist the workpiece to slide into the interior, a gradually expanding arc ff1 can pull and tear a separating glue ff2 to carry out conformal extension on the surface of the workpiece, a large area of a large-area abutting angle www3 is used for catching the bottom end surface of the large-area abutting angle www3, an arc protection head ee4 supports an outward expanding area of a filling glue ee3, the filling glue ee3 can smoothly catch foreign objects, when the large-area abutting angle www3 is pressed inwards by the force of the workpiece, an ellipsoid ee2 buffers the inwards-expanding force, a bottom angle ee1 is used for fixing the force, the large-area abutting angle www3 can be deformed and flattened, and an arc surface www4 can carry out certain-force attachment on the workpiece.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (8)
1. The utility model provides a horizontal boring machine is used in cutting process of cylindric work piece, its structure includes chassis (qw11), slide bar (qw22), saddle (qw33), cutting head (qw44), main accent case (qw55), accuse body (qw66), its characterized in that:
the pallet (qw33) is mounted on the upper surface of a base frame (qw11), the sliding rod (qw22) is welded at the top end of the base frame (qw11), the cutting head (qw44) is connected with the control body (qw66), the control body (qw66) is movably connected with the main adjusting box (qw55), and the main adjusting box (qw55) is welded on the upper surface of the base frame (qw 11).
2. The horizontal boring machine for cutting a cylindrical workpiece according to claim 1, wherein: the cutting head (qw44) comprises a sequential notch (a1a), a spreading ball (a2a), a partition layer (a3a) and a middle fixing core (a4a), wherein the sequential notch (a1a) is installed on the outer surface of the spreading ball (a2a), the spreading ball (a2a) is embedded into the partition layer (a3a), and the partition layer (a3a) is sleeved on the outer surface of the middle fixing core (a4a) and is positioned on the same axis.
3. The horizontal boring machine for cutting a cylindrical workpiece according to claim 2, wherein: expand and prop ball (a2a) and include gib head (g11), interior bag (g22), solid top (g33), cut shell (g44), limit ring (g55), gib head (g11) laminating in limit ring (g55) surface, interior bag (g22) is embedded inside limit ring (g55), it is connected with cutting shell (g44) to fix top (g33), cut shell (g44) to support in limit ring (g55) surface.
4. The horizontal boring machine for cutting a cylindrical workpiece according to claim 3, wherein: the fixed top head (g33) comprises a guide angle (zx1), an extension head (zx2), an arc edge (zx3), a face fixing block (zx4) and an outer pocket layer (zx5), wherein the guide angle (zx1) is connected with the extension head (zx2), the extension head (zx2) is embedded inside the outer pocket layer (zx5), the guide angle (zx1) is connected with the extension head (zx2), and the arc edge (zx3) abuts against the outer surface of the face fixing block (zx 4).
5. The horizontal boring machine for cutting a cylindrical workpiece according to claim 2, wherein: it includes back to layer (hh01), arc core (hh02), props ellipsoid (hh03), gluey limit (hh04), arc mouth (hh05) to be in the same direction as notch (a1a), back to layer (hh01) laminating in arc core (hh02) surface, the one end of propping layer (hh01) and propping ellipsoid (hh03) and being connected after keeping away from arc core (hh02), prop ellipsoid (hh03) surface mounting and have gluey limit (hh04), prop ellipsoid (hh03) embedding inside arc mouth (hh 05).
6. The horizontal boring machine for cutting a cylindrical workpiece according to claim 1, wherein: the pallet (qw33) comprises a bottom block (www1), a force-sharing ball (www2), a large surface supporting angle (www3), an arc surface (www4) and a positioning layer (www5), wherein the force-sharing ball (www2) is embedded in the bottom block (www1), the large surface supporting angle (www3) is connected with the positioning layer (www5), and the arc surface (www4) is supported on the outer surface of the positioning layer (www 5).
7. The horizontal boring machine for cutting a cylindrical workpiece according to claim 6, wherein: the large surface support angle (www3) comprises a base angle (ee1), a middle ellipsoid (ee2), filled glue (ee3) and an arc protection head (ee4), wherein the middle ellipsoid (ee2) is arranged between the base angle (ee1) and the arc protection head (ee4), and the filled glue (ee3) is attached to the outer surface of the arc protection head (ee 4).
8. The horizontal boring machine for cutting a cylindrical workpiece according to claim 6, wherein: the cambered surface (www4) comprises a divergent arc (ff1), a rubber isolation (ff2) and a middle support block (ff3), the rubber isolation (ff2) is attached to the outer surface of the divergent arc (ff1), and the rubber isolation (ff2) is mounted on the outer surface of the middle support block (ff 3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010091962.8A CN111250755B (en) | 2020-02-14 | 2020-02-14 | Horizontal boring machine for cutting cylindrical workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010091962.8A CN111250755B (en) | 2020-02-14 | 2020-02-14 | Horizontal boring machine for cutting cylindrical workpiece |
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| Publication Number | Publication Date |
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| CN111250755A true CN111250755A (en) | 2020-06-09 |
| CN111250755B CN111250755B (en) | 2020-12-15 |
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| CN202010091962.8A Active CN111250755B (en) | 2020-02-14 | 2020-02-14 | Horizontal boring machine for cutting cylindrical workpiece |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001062619A (en) * | 1999-08-31 | 2001-03-13 | Otani Kikai Seisakusho:Kk | Table type horizontal boring machine and boring bar support device |
| CN203649470U (en) * | 2013-09-09 | 2014-06-18 | 温州捷高科技有限公司 | Multi-angle observation device of boring lathe |
| CN206066067U (en) * | 2016-09-23 | 2017-04-05 | 浙江珠儿纳机械有限公司 | A kind of horizontal boring machine |
| CN207272701U (en) * | 2017-10-19 | 2018-04-27 | 江西新熙铸造材料有限公司 | One kind is machined dedicated boring machine |
| CN207709940U (en) * | 2017-12-16 | 2018-08-10 | 江苏意玛筑路机械科技有限公司 | A kind of horizontal boring machine |
-
2020
- 2020-02-14 CN CN202010091962.8A patent/CN111250755B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001062619A (en) * | 1999-08-31 | 2001-03-13 | Otani Kikai Seisakusho:Kk | Table type horizontal boring machine and boring bar support device |
| CN203649470U (en) * | 2013-09-09 | 2014-06-18 | 温州捷高科技有限公司 | Multi-angle observation device of boring lathe |
| CN206066067U (en) * | 2016-09-23 | 2017-04-05 | 浙江珠儿纳机械有限公司 | A kind of horizontal boring machine |
| CN207272701U (en) * | 2017-10-19 | 2018-04-27 | 江西新熙铸造材料有限公司 | One kind is machined dedicated boring machine |
| CN207709940U (en) * | 2017-12-16 | 2018-08-10 | 江苏意玛筑路机械科技有限公司 | A kind of horizontal boring machine |
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| CN111250755B (en) | 2020-12-15 |
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Effective date of registration: 20201201 Address after: 318000 No.16, Donglu village, qiansuo street, Jiaojiang District, Taizhou City, Zhejiang Province Applicant after: Jin Pengfei Address before: 400065 Road, 2 Chongwen Road, Nan'an District, Chongqing, China Applicant before: Wen Yingqian |
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