CN110588050A - High-speed rail/subway door curing molding flexible mold - Google Patents
High-speed rail/subway door curing molding flexible mold Download PDFInfo
- Publication number
- CN110588050A CN110588050A CN201910874215.9A CN201910874215A CN110588050A CN 110588050 A CN110588050 A CN 110588050A CN 201910874215 A CN201910874215 A CN 201910874215A CN 110588050 A CN110588050 A CN 110588050A
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- flexible body
- hinged support
- hydraulic cylinder
- hinged
- bottom plate
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- 238000000465 moulding Methods 0.000 title abstract description 12
- 239000000758 substrate Substances 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000005452 bending Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to a high-speed rail/subway car door curing and forming flexible die, in the structure of the flexible die, two first hydraulic cylinders adjust the included angle between two upper die plates, two proportional hydraulic cylinders adjust the included angle between two lower die plates, two first positioning devices limit backward movement of a car door, and a second positioning device adjusts the position of the car door in the flexible die, so that the bending position below the car door is positioned in the middle of a lower flexible body, the bending position above the car door is positioned in the middle of an upper flexible body, and the car door is limited to move leftwards. In the process of pressurizing and molding the vehicle door, the two flexible bodies can deform and adapt to the curvature of the bent part of the vehicle door. The flexible mold can meet the curing molding of high-speed rail/subway door with different bending angles by adjusting the angle of the template, has strong applicability and high utilization rate, and reduces the design and manufacturing cost of the mold. In addition, in the molding and manufacturing process of the vehicle door, the mold angle adjusting operation is convenient, the mold does not need to be replaced, and the production period can be greatly shortened.
Description
Technical Field
The invention belongs to the technical field of locomotive door molds, and relates to a high-speed rail/subway door curing molding flexible mold.
Background
At present, the final forming and manufacturing links of domestic high-speed rail/subway vehicle doors are all solidified and formed by rigid mold extrusion, one pair of molds is only suitable for one specific vehicle door, and different molds are needed for vehicle doors with different specification parameters (bending angles). The existing mould tool has the problems of inconvenient replacement and operation, high production and manufacturing cost, long manufacturing period, large occupied space of the mould, low utilization rate and the like in the production and operation process.
Disclosure of Invention
The invention provides a flexible mold suitable for curing and molding high-speed rail/subway car doors with different bending angles.
The technical scheme adopted by the invention is as follows:
the high-speed rail/subway vehicle door curing molding flexible mold comprises an upper base, an upper flexible body, a second positioning device, a lower flexible body, a lower base, two first hydraulic cylinders, two first positioning devices, two proportional hydraulic cylinders, two upper templates and two lower templates;
the upper substrate comprises an upper bottom plate and two first side plates, the lower substrate comprises a lower bottom plate and two second side plates, the upper bottom plate and the lower bottom plate are arranged oppositely, the two first side plates are respectively and vertically welded at the middle position of the lower end face of the upper bottom plate, and a first gap for accommodating the upper flexible body is reserved between the two first side plates; the two second side plates are respectively and vertically welded in the middle of the upper end surface of the lower bottom plate, and a second gap for accommodating the lower flexible body is reserved between the two second side plates;
the upper flexible body is fixedly arranged at the lowest end of the first gap, the lower flexible body is fixedly arranged at the highest end of the second gap, the upper flexible body and the lower flexible body are right opposite, and a gap is reserved between the upper flexible body and the lower flexible body;
the left end and the right end of the lower end surface of the upper bottom plate are respectively provided with a first hinged support, the bottoms of the two first side plates are respectively hinged with an upper template, the positions of the tail ends of the two upper templates, which are opposite to the corresponding first hinged supports, are respectively provided with a second hinged support, and a first hydraulic cylinder is connected between the first hinged support and the second hinged support which are opposite up and down; the bottom of the first hydraulic cylinder is hinged with a corresponding first hinged support, and the end part of a push rod of the first hydraulic cylinder is hinged with a corresponding second hinged support;
the left end and the right end of the upper end surface of the lower bottom plate are respectively provided with a third hinged support, the tops of the two second side plates are respectively hinged with a lower template, the tail ends of the two lower templates are respectively provided with a fourth hinged support at the position opposite to the corresponding third hinged support, and a proportional hydraulic cylinder is connected between the third hinged support and the fourth hinged support which are opposite up and down; the proportional hydraulic cylinder mainly comprises a magnetostrictive displacement sensor and a second hydraulic cylinder, and the magnetostrictive displacement sensor is fixedly arranged on the side surface of the second hydraulic cylinder; the bottom of the second hydraulic cylinder is hinged with a corresponding third hinged support, and the end part of a push rod of the second hydraulic cylinder is hinged with a corresponding fourth hinged support;
the two first positioning devices are arranged at the rear side of the flexible mold in a bilateral symmetry manner and used for restricting the car door to move towards the rear side; the second positioning device is arranged at the edge position of the lower template on the left side and is used for adjusting the position of the vehicle door between the upper template and the lower template and restraining the vehicle door from moving leftwards.
Furthermore, the two first positioning devices are both long plates, rectangular connecting plates provided with screw holes are welded at the upper ends of the long plates, and the upper ends of the long plates are connected to the rear side of the upper bottom plate through bolts; a vertical sliding groove matched with the bottom of the long plate is formed in the rear side of the lower bottom plate, the vertical sliding groove is welded on a rectangular connecting plate provided with a screw hole, and the vertical sliding groove is fixed to the rear side of the lower bottom plate through a bolt; the lower ends of the two long plates are respectively embedded in the corresponding vertical sliding grooves and can move up and down along the corresponding vertical sliding grooves.
Furthermore, the second positioning device comprises a baffle, a cylindrical guide rod and an L-shaped connecting piece, a rectangular connecting plate provided with a screw hole is vertically welded at the end part of the long section of the L-shaped connecting piece, the lower template on the left side corresponds to the hole, and the end part of the long section of the L-shaped connecting piece is connected to the end part of the left end of the lower template on the left side through a screw; the baffle is arranged between the upper template on the left side and the lower template on the left side and can move transversely; the cylindrical guide rod is vertically welded on the lower part of the left end face of the baffle plate, the short section of the L-shaped connecting piece faces upwards and is provided with a through hole for the cylindrical guide rod to pass through, and the end part of the short section of the L-shaped connecting piece is also provided with a screw hole communicated with the through hole; when the baffle is moved, the cylindrical guide rod moves in the through hole of the short section of the L-shaped connecting piece, and the cylindrical guide rod can be fixed through the fastening stud, so that the baffle is fixed.
Furthermore, the upper flexible body and the lower flexible body are both made of polyurethane rubber.
Further, after welding, the upper substrate and the lower substrate are both subjected to high-temperature tempering treatment.
Compared with the prior art, the invention has the beneficial effects that:
the flexible mold can meet the curing molding of high-speed rail/subway door with different bending angles by adjusting the angle of the template, has strong applicability and high utilization rate, and reduces the design and manufacturing cost of the mold. In addition, in the molding and manufacturing process of the vehicle door, the mold angle adjusting operation is convenient, the mold does not need to be replaced, and the production period can be greatly shortened (particularly obviously under the conditions of multiple varieties and small batch).
Drawings
FIG. 1 is a schematic structural diagram of a high-speed rail/subway door curing and forming flexible mold of the invention;
FIG. 2 is a schematic view of a partial connection structure of the first positioning device and the upper base plate;
FIG. 3 is a schematic view of a partial connection structure of the first positioning device and the lower plate;
FIG. 4 is a schematic structural view of the second positioning device mounted on the lower template;
reference numerals: 1-upper base, 2-first hydraulic cylinder, 3-first positioning device, 4-upper flexible body, 5-proportional hydraulic cylinder, 6-upper template, 7-second positioning device, 71-baffle, 72-cylindrical guide rod, 73-L-shaped connecting piece, 8-lower template, 9-lower flexible body and 10-lower base.
Detailed Description
The high-speed rail/subway door curing and forming flexible mold of the invention is further described in detail with reference to the accompanying drawings and specific embodiments.
The flexible mold shown in fig. 1 includes an upper base 1, a first hydraulic cylinder 2, a first positioning device 3, an upper flexible body 4, a proportional hydraulic cylinder 5, an upper mold plate 6, a second positioning device 7, a lower mold plate 8, a lower flexible body 9, and a lower base 10, wherein the number of the first hydraulic cylinder 2, the first positioning device 3, the proportional hydraulic cylinder 5, the upper mold plate 6, and the lower mold plate 8 is two.
The upper base 1 comprises an upper base plate and two first side plates, the lower base 10 comprises a lower base plate and two second side plates, the upper base plate and the lower base plate are arranged oppositely, the two first side plates are respectively and vertically welded at the middle position of the lower end face of the upper base plate, and a first gap for accommodating the upper flexible body 4 is reserved between the two first side plates. The two second side plates are respectively and vertically welded at the middle position of the upper end surface of the lower bottom plate, and a second gap for accommodating the lower flexible body 9 is reserved between the two second side plates. In the embodiment, the upper bottom plate and the lower bottom plate are provided with a plurality of waist-shaped holes under the condition of meeting the requirements of strength and rigidity, so that materials are saved. And after welding, the upper substrate 1 and the lower substrate 10 are subjected to high-temperature tempering treatment.
The upper flexible body 4 is fixedly arranged at the lowest end of the first gap, the lower flexible body 9 is fixedly arranged at the highest end of the second gap, the upper flexible body 4 and the lower flexible body 9 are vertically and rightly opposite, and a gap is reserved between the upper flexible body and the lower flexible body. The fixing mode of the flexible body is as follows: the upper flexible body 4 is limited by an upper limiting plate to move upwards, the upper limiting plate is horizontally arranged in the first gap, and two sides of the upper limiting plate are fixedly connected with the two first side plates through screws. The top surface of the upper flexible body 4 is attached to the upper limiting plate, a pin hole is formed in each of the left end surface and the right end surface of the upper flexible body 4, holes are formed in the corresponding positions of the two first side plates, and the two first side plates and the upper flexible body 4 are fixed through screws. The lower flexible body 9 is limited by a lower limiting plate to move in the vertical direction, the lower limiting plate is horizontally arranged in the second gap, pin holes are formed in two sides of the lower limiting plate, holes are correspondingly formed in the two second side plates, the lower limiting plate is fixed with the two second side plates through screws, and the lower flexible body 9 is supported by the lower limiting plate. In this embodiment, the upper flexible body 4 and the lower flexible body 9 are made of urethane rubber.
The left end and the right end of the lower end face of the upper bottom plate are respectively provided with a first hinged support, the bottoms of the two first side plates are respectively hinged with an upper template 6, the respective tail ends of the two upper templates 6 are respectively provided with a second hinged support at the position opposite to the corresponding first hinged support, and a first hydraulic cylinder 2 is connected between the first hinged support and the second hinged support which are opposite up and down. The left end and the right end of the upper end surface of the lower bottom plate are respectively provided with a third hinged support, the tops of the two second side plates are respectively hinged with a lower template 8, the respective tail ends of the two lower templates 8 are respectively provided with a fourth hinged support at the position opposite to the corresponding third hinged support, and a proportional hydraulic cylinder 5 is connected between the third hinged support and the fourth hinged support which are opposite up and down. Specifically, the bottom of the first hydraulic cylinder 2 is hinged to a corresponding first hinged support, and the end of a push rod of the first hydraulic cylinder 2 is hinged to a corresponding second hinged support. The proportional hydraulic cylinder 5 mainly comprises a magnetostrictive displacement sensor and a second hydraulic cylinder, wherein the magnetostrictive displacement sensor is fixedly arranged on the side surface of the second hydraulic cylinder and is used for measuring the telescopic amount of a push rod of the second hydraulic cylinder. The bottom of the second hydraulic cylinder is hinged with a corresponding third hinged support, and the end part of the push rod of the second hydraulic cylinder is hinged with a corresponding fourth hinged support.
The positioning of the high-speed rail/subway door is realized through the second positioning device 7 and the two first positioning devices 3, the first positioning devices 3 are long plates, and the two long plates are arranged on the rear side of the flexible mold in a bilateral symmetry mode. As shown in fig. 2 and 3, the upper ends of the long plates are welded with rectangular connecting plates provided with screw holes, so that the upper ends of the two long plates are respectively connected to the rear side of the upper base plate through bolts, as shown in fig. 1. The lower base plate rear side is equipped with the vertical spout that matches with the long slab bottom, and the welding of vertical spout is on the rectangular connection board of seting up the screw, and then passes through the bolt fastening in the lower base plate rear side. The lower ends of the two long plates are respectively embedded in the corresponding vertical sliding grooves and can move up and down along the corresponding vertical sliding grooves.
The structure of the second positioning device 7 is shown in fig. 4, and the second positioning device comprises a baffle 71, a cylindrical guide rod 72 and an L-shaped connecting piece 73, wherein a rectangular connecting plate with a screw hole is vertically welded at the end of a long section of the L-shaped connecting piece 73, the lower template 8 on the left side corresponds to an opening, and the end of the long section of the L-shaped connecting piece 73 is connected to the end of the left end of the lower template 8 on the left side through a screw. The baffle 71 is arranged between the upper template 6 on the left side and the lower template 8 on the left side and can move transversely. The cylindrical guide rod 72 is vertically welded at the lower part of the left end face of the baffle plate 71, the short section of the L-shaped connecting piece 73 faces upwards and is provided with a through hole for the cylindrical guide rod 72 to pass through, in addition, the end part of the short section of the L-shaped connecting piece 73 is also provided with a screw hole communicated with the through hole, and a stud is screwed in the screw hole. When the baffle 71 is moved, the cylindrical guide rod 72 moves in the through hole of the short section of the L-shaped connecting member 73, and the cylindrical guide rod 72 is fixed by the fastening stud, thereby fixing the baffle 71.
The specific use method of the high-speed rail/subway door curing molding flexible mold comprises the following steps:
according to target parameters of the high-speed rail/subway vehicle door, namely the bending position of the vehicle door and the bending angle of the upper surface and the lower surface of the vehicle door (the upper surface and the lower surface of the vehicle door are manufactured before the vehicle door is finally molded), the upper surface and the lower surface of the high-speed rail/subway vehicle door are stacked on the two lower templates 8 in pairs, and the position of the vehicle door in the flexible mold is adjusted. The long side of the vehicle door leans against the two first positioning devices 3 to limit the vehicle door to move backwards, the wide side of the vehicle door leans against the second positioning device 7, the second positioning device 7 is adjusted to limit the vehicle door to move leftwards, the bending position below the vehicle door is located at the middle position of the lower flexible body 9, the bending position above the vehicle door is located at the middle position of the upper flexible body 4 (the required pressure is not large when the vehicle door is formed, the pressing stroke is also small, the precision requirement is not high, and when the vehicle door is positioned and stacked, the vehicle door needs to be higher than the baffle 71 properly).
The included angle between the two upper templates 6 is adjusted by adjusting the two first hydraulic cylinders 2, and the included angle between the two lower templates 8 is adjusted by adjusting the two proportional hydraulic cylinders 5. When the included angle is adjusted specifically, the first hydraulic cylinder 2 and the proportional hydraulic cylinder 5 of the left half part of the flexible die and the first hydraulic cylinder 2 and the proportional hydraulic cylinder 5 of the right half part of the flexible die work independently in pairs respectively. By taking the right half as an example, the right proportional hydraulic cylinder 5 acts to change the inclination angle of the right lower template 8, because the oil outlet of the right proportional hydraulic cylinder 5 and the oil inlet of the right first hydraulic cylinder 2 are connected in series, the right first hydraulic cylinder 2 also acts synchronously, and because the cylinder diameters of the first hydraulic cylinder 2 and the proportional hydraulic cylinder 5 are consistent with the rod diameter parameters, the strokes of the synchronous action are also consistent, so that the upper template 6 and the lower template 8 on the right half have the same inclination angle, and the left half of the flexible mold is treated in the same way. The upper and lower templates on the right half part have the same inclination angle, the upper and lower templates on the left half part have the same inclination angle, and the inclination angles of the left and right parts are adjustable, so that the requirements of different angles can be met. After the included angle between the left part and the right part is adjusted, pressure is applied to the flexible mold through an external pressure device, the pressure device is arranged on the upper portion of the flexible mold, and the pressure is applied to the upper substrate 1. In the pressing process, the two flexible bodies can deform and adapt to the curvature of the bent part of the car door. After the door is bent, glue is used between the upper surface and the lower surface of the paired high-speed rail/subway door for curing and molding at the working temperature of about 150 ℃.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (5)
1. The high-speed rail/subway vehicle door curing and forming flexible mold is characterized by comprising an upper base (1), an upper flexible body (4), a second positioning device (7), a lower flexible body (9), a lower base (10), two first hydraulic cylinders (2), two first positioning devices (3), two proportional hydraulic cylinders (5), two upper templates (6) and two lower templates (8);
the upper substrate (1) comprises an upper bottom plate and two first side plates, the lower substrate (10) comprises a lower bottom plate and two second side plates, the upper bottom plate and the lower bottom plate are arranged oppositely, the two first side plates are respectively and vertically welded at the middle position of the lower end face of the upper bottom plate, and a first gap for accommodating the upper flexible body (4) is reserved between the two first side plates; the two second side plates are respectively and vertically welded in the middle of the upper end surface of the lower bottom plate, and a second gap for accommodating a lower flexible body (9) is reserved between the two second side plates;
the upper flexible body (4) is fixedly arranged at the lowest end of the first gap, the lower flexible body (9) is fixedly arranged at the highest end of the second gap, the upper flexible body (4) and the lower flexible body (9) are vertically and positively opposite, and a gap is reserved between the upper flexible body and the lower flexible body;
the left end and the right end of the lower end face of the upper bottom plate are respectively provided with a first hinged support, the bottoms of the two first side plates are respectively hinged with an upper template (6), the tail ends of the two upper templates (6) are respectively provided with a second hinged support at the position opposite to the corresponding first hinged support, and a first hydraulic cylinder (2) is connected between the first hinged support and the second hinged support which are opposite up and down; the bottom of the first hydraulic cylinder (2) is hinged with the corresponding first hinged support, and the end part of the push rod of the first hydraulic cylinder (2) is hinged with the corresponding second hinged support;
the left end and the right end of the upper end surface of the lower bottom plate are respectively provided with a third hinged support, the tops of the two second side plates are respectively hinged with a lower template (8), the tail ends of the two lower templates (8) are respectively provided with a fourth hinged support at the position opposite to the corresponding third hinged support, and a proportional hydraulic cylinder (5) is connected between the third hinged support and the fourth hinged support which are opposite up and down; the proportional hydraulic cylinder (5) mainly comprises a magnetostrictive displacement sensor and a second hydraulic cylinder, wherein the magnetostrictive displacement sensor is fixedly arranged on the side surface of the second hydraulic cylinder; the bottom of the second hydraulic cylinder is hinged with a corresponding third hinged support, and the end part of a push rod of the second hydraulic cylinder is hinged with a corresponding fourth hinged support;
the two first positioning devices (3) are arranged at the rear side of the flexible mould in a bilateral symmetry manner and are used for restricting the car door to move towards the rear side; the second positioning device (7) is arranged at the edge position of the lower template (8) on the left side and is used for adjusting the position of the vehicle door between the upper template and the lower template and restraining the vehicle door from moving leftwards.
2. The curing and forming flexible mold for the high-speed rail/subway car door as claimed in claim 1, wherein the two first positioning devices (3) are both long plates, rectangular connecting plates with screw holes are welded at the upper ends of the long plates, and the upper ends of the long plates are connected to the rear side of the upper bottom plate through bolts; a vertical sliding groove matched with the bottom of the long plate is formed in the rear side of the lower bottom plate, the vertical sliding groove is welded on a rectangular connecting plate provided with a screw hole, and the vertical sliding groove is fixed to the rear side of the lower bottom plate through a bolt; the lower ends of the two long plates are respectively embedded in the corresponding vertical sliding grooves and can move up and down along the corresponding vertical sliding grooves.
3. The high-speed rail/subway door curing and forming flexible mold as claimed in claim 1 or 2, wherein the second positioning device (7) comprises a baffle plate (71), a cylindrical guide rod (72) and an L-shaped connecting piece (73), a rectangular connecting plate with a screw hole is vertically welded at the end of the long section of the L-shaped connecting piece (73), the lower template (8) on the left side corresponds to the hole, and the end of the long section of the L-shaped connecting piece (73) is connected to the end of the left end of the lower template (8) on the left side through a screw; the baffle (71) is arranged between the upper template (6) on the left side and the lower template (8) on the left side and can move transversely; the cylindrical guide rod (72) is vertically welded at the lower part of the left end face of the baffle plate (71), the short section of the L-shaped connecting piece (73) faces upwards and is provided with a through hole for the cylindrical guide rod (72) to pass through, and the end part of the short section of the L-shaped connecting piece (73) is also provided with a screw hole communicated with the through hole; when the baffle plate (71) is moved, the cylindrical guide rod (72) moves in the through hole of the short section of the L-shaped connecting piece (73), and the cylindrical guide rod (72) can be fixed through the fastening stud, so that the baffle plate (71) is fixed.
4. The curing and forming flexible mold for the high-speed rail/subway car door according to claim 1, wherein the upper flexible body (4) and the lower flexible body (9) are made of polyurethane rubber.
5. The curing and forming flexible mold for the high-speed rail/subway door as claimed in claim 1, wherein the upper base (1) and the lower base (10) are both subjected to high temperature tempering after welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874215.9A CN110588050A (en) | 2019-09-17 | 2019-09-17 | High-speed rail/subway door curing molding flexible mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874215.9A CN110588050A (en) | 2019-09-17 | 2019-09-17 | High-speed rail/subway door curing molding flexible mold |
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| Publication Number | Publication Date |
|---|---|
| CN110588050A true CN110588050A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910874215.9A Pending CN110588050A (en) | 2019-09-17 | 2019-09-17 | High-speed rail/subway door curing molding flexible mold |
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| CN (1) | CN110588050A (en) |
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2019
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| JP2018145591A (en) * | 2017-03-01 | 2018-09-20 | アクアインテック株式会社 | Coating method of underground structure and mold and guide sheet used for coating method |
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Application publication date: 20191220 |