CN210059363U - Seamless rectangular steel pipe forming device - Google Patents
Seamless rectangular steel pipe forming device Download PDFInfo
- Publication number
- CN210059363U CN210059363U CN201920773765.7U CN201920773765U CN210059363U CN 210059363 U CN210059363 U CN 210059363U CN 201920773765 U CN201920773765 U CN 201920773765U CN 210059363 U CN210059363 U CN 210059363U
- Authority
- CN
- China
- Prior art keywords
- section
- rollers
- shaping
- rectangular
- core block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a seamless rectangular steel pipe forming device, which comprises a shaping core block, a rolling unit, a positioning unit and a drawing unit, wherein the shaping core block consists of a shaping section, and a chamfer section which are positioned at the two ends of the shaping section; the rolling unit comprises a first base, four rollers and a rack, the four rollers are rotatably arranged on the rack, and the circumferential surfaces of the four rollers which are opposite in pairs surround to form a rectangular die hole so as to roll the parison tube from four directions by utilizing the rotating circumferential surfaces of the four rollers; the positioning unit and the drawing unit are respectively positioned at the front side and the rear side of the rectangular die hole, the shaping section of the shaping core block is arranged in the rectangular die hole, and the inverted cone section of the shaping core block is fixedly connected with the positioning unit through a fixing rod so as to fix the shaping core block; the drawing unit is fixedly connected with one end of the blank pipe; the central line of the rectangular die hole, the central line of the shaping core block, the central line of the drawing unit and the central line of the positioning unit are positioned on the same straight line. The device reduces the damage to the blank pipe and can effectively improve the processing efficiency.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to seamless rectangle steel pipe forming device.
Background
A seamless rectangular steel pipe is a long steel bar having a hollow cross section and no seam around the periphery. The existing rectangular seamless steel pipe is mainly processed by adopting a drawing forming method, and the drawing is a plastic processing method for deforming a metal blank through a die hole of a drawing die. The blank generates plastic deformation in the drawing die in the drawing process, and the section shape and the size of the blank tube are the same as those of the outlet of the die hole of the drawing die after passing through the drawing die. Therefore, the shape and the size of the die hole of the drawing die are changed, and a corresponding drawing formed product can be obtained.
However, in the process of drawing forming, the inside and outside surfaces of the parison tube are damaged by the violent friction between the parison tube and the drawing die, and meanwhile, because the center line of the drawing machine and the center line of the drawing die are not coincident, a plurality of angle edges of the drawing die are not parallel or symmetrical, so that the blank is deformed and twisted or the size of the blank is not in line with the product requirements. Especially for high alloy materials and stainless steel materials, straightening after deformation is very difficult, so that one-step accurate forming of seamless rectangular steel pipes processed by the materials is very important.
Disclosure of Invention
The aforesaid to prior art exists not enoughly, the utility model aims at providing a can effectively reduce the friction to the base pipe, avoided the harm to the base pipe, simultaneously can one shot forming to can effectively improve machining efficiency's seamless rectangle steel pipe forming device.
The technical scheme of the utility model is realized like this:
a seamless rectangular steel tube forming device comprises a shaping core block, a rolling unit, a positioning unit and a drawing unit, wherein the shaping core block consists of a shaping section, a chamfer section and an inverted cone section, the shaping section is a rectangular block, and the cross section of the rectangular block is consistent with the rectangular inner surface of the cross section of a to-be-formed seamless rectangular steel tube; the chamfering section and the inverted cone section are conical blocks with rectangular cross sections and are respectively positioned at two ends of the shaping section, one end of the chamfering section is correspondingly connected with one end of the shaping section, and the other end of the chamfering section is a rectangle I which is reduced along the direction far away from the shaping section; back taper section one end corresponds with the design section other end and is connected, and the back taper section other end is for keeping away from the rectangle II that the design section diminishes.
The rolling unit comprises a first base, four rollers and a rack, the rack is fixedly arranged on the upper surface of the first base, the rack is of a rectangular frame structure, the four rollers are rotatably arranged on the rack, two of the rollers are vertically arranged opposite to each other and are positioned on the upper side and the lower side of the rack, and the two rollers form vertical rollers; the other two rollers are horizontally arranged on the left side and the right side of the frame in an opposite way, and the two rollers form a horizontal roller; the distance between the two vertical rollers corresponds to the length of the seamless rectangular steel pipe to be formed; the distance between the two horizontal rollers corresponds to the width of the seamless rectangular steel pipe to be formed; the circle center connecting line of the two vertical rollers is vertical to and intersected with the circle center connecting line of the two horizontal rollers; the four rollers are oppositely arranged in pairs, the periphery surfaces of the four rollers are encircled to form a rectangular die hole, so that the blank pipe is rolled from four directions by utilizing the rotating periphery surfaces of the four rollers, the length of the rectangular die hole is the distance between the two rollers on the upper side and the lower side of the rack, and the width of the rectangular die hole is the distance between the two rollers on the left side and the right side of the rack.
The positioning unit and the drawing unit are respectively positioned at the front side and the rear side of the rectangular die hole, the shaping section of the shaping core block is correspondingly arranged in the rectangular die hole, and the inverted cone section of the shaping core block is fixedly connected with the positioning unit through a fixing rod so as to fix the shaping core block; the drawing unit is fixedly connected with one end of the blank pipe, so that the blank pipe can be conveniently drawn and formed; the central line of the rectangular die hole, the central line of the shaping core block, the central line of the drawing unit and the central line of the positioning unit are positioned on the same straight line.
Further, the two vertical rollers roll the upper surface and the lower surface of the seamless rectangular steel pipe to be formed and the four chamfers respectively, the two horizontal rollers roll the two side surfaces of the seamless rectangular steel pipe to be formed respectively, grooves which are closed along the circumference are arranged on the circumferential surfaces of the two vertical rollers, the cross sections of the grooves are U-shaped to form U-shaped grooves, and the bottoms of the U-shaped grooves and the two side walls are in smooth transition and correspond to the four corners of the seamless rectangular steel pipe to be formed.
Furthermore, the positioning unit comprises a second base and a positioning trolley, the fixing rod is fixedly connected with the positioning trolley, a track I corresponding to the running track of the positioning trolley is arranged on the surface of the second base, and the positioning trolley can reciprocate on the track I and can be locked and fixed.
Furthermore, a connecting rod is arranged between the fixing rod and the positioning trolley, one end of the connecting rod is fixedly connected with the fixing rod, and the other end of the connecting rod is fixedly connected with the positioning trolley.
Further, still be equipped with the linkage segment between back taper section and the dead lever, linkage segment one end corresponds fixed connection with the back taper section, and the other end corresponds fixed connection with the dead lever.
Further, the drawing unit comprises a third base and a drawing trolley, one end of the blank pipe is fixedly connected with the drawing trolley, a track II corresponding to the drawing operation track is arranged on the surface of the third base, and the drawing trolley can reciprocate on the track II to repeatedly draw the blank pipe into the rectangular steel pipe.
Furthermore, a clamp is arranged on the drawing trolley and used for clamping and fixing the blank pipe.
Furthermore, the shaping section, the chamfering section, the inverted cone section and the connecting section are integrally formed to form a shaping core block.
Further, the roller is fixed on the frame through a bearing seat.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses the setting of design pellet carries out the roll extrusion in-process at four gyro wheels to the parison tube, and only the design section contacts with the parison tube, and the length of design section is shorter to reduce the friction to the parison tube, and then avoided the harm to the parison tube.
2. The utility model adopts four rollers for one-time rolling forming, and as long as the size of the rectangular die hole formed by the four rollers is accurate, the size of the formed seamless rectangular steel pipe meets the requirement; meanwhile, the circumference of the roller is utilized to roll the blank pipe, so that the damage to the roller is small, and the blank pipe can be repeatedly used.
Drawings
Fig. 1-the structure of the present invention is schematically illustrated.
Figure 2-schematic view of the shaped core block structure.
Figure 3-cross-sectional view of the shaped core block shaping segment.
Figure 4-a schematic cross-sectional structure of the rolling unit.
Figure 5-drawing carriage structure schematic.
Wherein: 1-shaping the core block; 11-a shaping section; 12-a chamfer section; 13-an inverted cone section; 14-a connecting segment; 21-a first base; 22-a roller; 23-a frame; 24-a bearing seat; 31-a second base; 32-positioning the trolley; 33-a connecting rod; 41-a third base; 42-drawing the trolley; 43-clamp; 5-blank pipe; 6-forming a seamless rectangular steel pipe; 7-fixing the rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-5, the seamless rectangular steel tube forming device comprises a forming core block 1, a rolling unit, a positioning unit and a drawing unit, wherein the forming core block 1 consists of a forming section 11, a chamfering section 12 and an inverted cone section 13, the forming section 11 is a rectangular block, and the outer surface of the cross section of the forming section is consistent with the rectangular inner surface of the cross section of a to-be-formed seamless rectangular steel tube 6; the chamfering section 12 and the inverted cone section 13 are both conical blocks with rectangular cross sections and are respectively positioned at two ends of the shaping section 11, one end of the chamfering section 12 is correspondingly connected with one end of the shaping section 11, and the other end of the chamfering section 12 is a rectangle I which is reduced along the direction far away from the shaping section; one end of the inverted cone section 13 is correspondingly connected with the other end of the shaping section 11, and the other end of the inverted cone section 13 is a rectangle II which is reduced along the direction far away from the shaping section 11.
The rolling unit comprises a first base 21, four rollers 22 and a rack 23, the rack 23 is fixedly arranged on the upper surface of the first base 21, the rack 23 is of a rectangular frame structure, the four rollers 22 are rotatably arranged on the rack 23, two of the rollers 22 are vertically arranged opposite to each other and are positioned on the upper side and the lower side of the rack 23, and the two rollers form vertical rollers; the other two rollers 22 are arranged on the left side and the right side of the frame 23 in a horizontally opposite mode, and the two rollers form a horizontal roller; the distance between the two vertical rollers corresponds to the length of the seamless rectangular steel tube 6 to be formed; the distance between the two horizontal rollers corresponds to the width of the seamless rectangular steel pipe 6 to be formed; the circle center connecting line of the two vertical rollers is vertical to and intersected with the circle center connecting line of the two horizontal rollers; the four rollers are oppositely arranged in pairs, the circumferential surfaces of the four rollers are encircled to form a rectangular die hole, so that the blank pipe 5 is rolled from four directions by utilizing the rotating circumferential surfaces of the four rollers, the length of the rectangular die hole is the distance between the two rollers on the upper side and the lower side of the rack, and the width of the rectangular die hole is the distance between the two rollers on the left side and the right side of the rack.
The positioning unit and the drawing unit are respectively positioned at the front side and the rear side of the rectangular die hole, the shaping section 11 of the shaping core block 1 is correspondingly arranged in the rectangular die hole, and the inverted cone section 13 of the shaping core block 1 is fixedly connected with the positioning unit through the fixing rod 7 so as to fix the shaping core block 1; the drawing unit is fixedly connected with one end of the blank pipe 5, so that the blank pipe 5 can be conveniently drawn and formed; the central line of the rectangular die hole, the central line of the shaping core block, the central line of the drawing unit and the central line of the positioning unit are positioned on the same straight line.
The shaping section is also called a sizing section, the width of the sizing section is about 5-6 mm, the outer surface of the shaping section is consistent with the rectangular inner surface of the section of the rectangular steel pipe to be processed, after the shaping section is placed in the rectangular die hole, the central line of the shaping section is superposed with the central line of the rectangular die hole, and the gap distance between the shaping section and the rectangular die hole is just equal to the wall thickness of the parison tube. In the process of rolling the blank pipe by using the four rollers, the shaping section supports the blank pipe to prevent the blank pipe from bending and deforming in the rolling process, and the blank pipe is convenient to draw under the synergistic action of the rectangular die hole and the shaping section, so that the four rollers rotate, and the four surfaces of the rectangular steel pipe are rolled. The width of the shaping section is smaller, the friction on the inner surface of the blank pipe is small in the drawing process, the damage to the blank pipe is avoided, and meanwhile, the drawing is easier. Meanwhile, in the drawing forming process, the four rollers rotate along the drawing direction, the shape of the rectangular hole is unchanged, the force required by drawing is reduced, the friction of the shaping section and the four rollers on the inner surface and the outer surface of the blank pipe is avoided, and the quality of the inner surface and the outer surface of the obtained seamless rectangular steel pipe is good after the drawing forming.
The chamfer section and the inverted cone section arranged at the two ends of the shaping section play a supporting role on the shaping section to a certain extent, and the bearing strength of the shaping section is enhanced. Meanwhile, the inverted cone section is gradually reduced along the direction far away from the shaping section, so that the inverted cone section does not rub against the blank pipe, and the damage to the blank pipe is reduced; the inverted cone section is used for being connected with the fixed rod and then is fixed on the positioning unit through the fixed rod, so that the fixed positioning of the shaping core block is realized, and the length space between the shaping section and the positioning unit is used for accommodating a blank pipe, so that the fixed rod with enough length needs to be arranged to be fixed with the positioning unit; and plays a role of guiding the blank pipe to move towards the direction of the rectangular die hole. The chamfer section is in the drawing process, the rolled part of the rectangular steel pipe can move along the direction of the chamfer section conveniently, the guiding effect is achieved, and meanwhile, the resistance to the rectangular steel pipe can be reduced.
The two vertical rollers roll the upper surface and the lower surface of the seamless rectangular steel pipe 6 to be formed and the four chamfers respectively, the two horizontal rollers roll the two side surfaces of the seamless rectangular steel pipe 6 to be formed respectively, grooves which are closed along the circumference are arranged on the circumferential surfaces of the two vertical rollers, the cross sections of the grooves are U-shaped to form U-shaped grooves, and the bottoms of the U-shaped grooves and the two side walls are in smooth transition and correspond to the four corners of the seamless rectangular steel pipe to be formed.
The positioning unit comprises a second base 31 and a positioning trolley 32, the fixing rod 7 is fixedly connected with the positioning trolley 32, a track I corresponding to the running track of the positioning trolley 32 is arranged on the surface of the second base 31, and the positioning trolley 32 can reciprocate on the track I and can be locked and fixed. In the embodiment, the positioning trolley is arranged to reciprocate and be fixed on the track I through the chain.
A connecting rod 33 is arranged between the fixed rod 7 and the positioning trolley 32, one end of the connecting rod 33 is fixedly connected with the fixed rod 7, and the other end of the connecting rod 33 is fixedly connected with the positioning trolley 32.
Still be equipped with linkage segment 14 between back taper section 13 and the dead lever 7, linkage segment 14 one end corresponds fixed connection with back taper section 13, and the other end corresponds fixed connection with dead lever 7. Set up the linkage segment, be convenient for further reduce the size of back taper section, and then differ a little with the size of dead lever, be favorable to with dead lever fixed connection. Or a hole corresponding to the fixing rod can be arranged on the connecting section, and one end of the fixing rod is inserted into the hole of the connecting section and then fixedly connected. The fixing rod and the shaping core block are fixedly connected in a rigid connection mode.
The shaping section, the chamfering section, the inverted cone section and the connecting section are integrally formed to form a shaping core block. The shaping core block is prepared by YG8 hard alloy, which has a series of excellent performances such as high hardness, wear resistance, better strength and toughness, heat resistance, corrosion resistance and the like, especially high hardness and wear resistance, and basically keeps unchanged even at the temperature of 500 ℃, and still has high hardness at the temperature of 1000 ℃.
The drawing unit comprises a third base 41 and a drawing trolley 42, one end of the blank pipe is fixedly connected with the drawing trolley 42, a track II corresponding to the drawing operation track is arranged on the surface of the third base 41, and the drawing trolley can reciprocate on the track II to repeatedly draw the blank pipe into a rectangular steel pipe. In the embodiment, the drawing trolley moves on the track II in a reciprocating manner through chain traction, and the blank pipe is repeatedly drawn into the rectangular steel pipe.
The drawing trolley 42 is provided with a clamp 43 for clamping and fixing the blank pipe. The clamp is a tool for clamping and fastening.
The blank pipe is a circular steel pipe or an oval steel pipe, and the circular perimeter of the circular steel pipe or the oval perimeter of the oval steel pipe is equal to the rectangular perimeter of the rectangular steel pipe to be processed. Because the processing of oval steel pipe and circular steel pipe is easy relatively, four angles deflection of rectangle steel pipe is great, and the processing degree of difficulty is higher. Preferably, the elliptical steel pipe has a major axis and a minor axis with a small deformation amount during processing with respect to the length and width of the rectangular steel pipe, and the circular steel pipe is used as a billet to process the rectangular steel pipe with a larger deformation amount than the elliptical steel pipe. Therefore, the required dimension of the oval steel pipe can be calculated in advance according to the rectangular dimension of the rectangular steel pipe through the technology, then the oval steel pipe is processed, and finally the processed oval steel pipe is used as a blank pipe for processing the seamless rectangular steel pipe, so that the deformation amount in the drawing process is smaller, and the drawing is easier.
The roller is fixed on the frame through a bearing seat. The roller is convenient to adjust through adjusting the bearing seat, so that the size of the rectangular die hole can be accurately adjusted.
The method for carrying out drawing forming by using the seamless rectangular steel pipe forming device comprises the following steps:
(1) the method comprises the steps that the positions of four rollers are accurately adjusted on a rack of a first base, one end of a fixed rod is fixedly connected with a connecting section of a shaping core block, the other end of the fixed rod is fixedly connected with one end of a connecting rod, the other end of the connecting rod is fixedly connected with a positioning trolley, the positioning trolley is moved, the position of the shaping core block is adjusted, the positioning section of the shaping core block is placed in a rectangular die hole and corresponds to the rectangular die hole, the gap distance between the shaping section and the rectangular die hole is just equal to the wall thickness of a blank pipe, the central line of the rectangular die hole, the central line of the shaping core block and the central line of the fixed rod are located on the same;
generally, the length of one rectangular steel pipe is 4-5 m, and when the positioning trolley is located at the position A, the distance from the positioning trolley to the rectangular die hole is larger than the length of the seamless rectangular steel pipe to be formed.
(2) The positioning trolley moves in the direction far away from the rolling unit, and when the distance between the positioning trolley and the rectangular die hole is larger than the sum of the length of the seamless rectangular steel pipe to be formed and the distance between the positioning trolley and the far end of the positioning core block, the position B of the positioning trolley is recorded; one end of the blank pipe is pointed by using a special tool so that the blank pipe can smoothly pass through the rectangular die hole, then the blank pipe penetrates through the rectangular die hole from one side of the positioning unit and is fixedly connected with the drawing trolley through the clamp, then the positioning trolley is moved so that the shaped core block enters the blank pipe from the other end of the blank pipe, the positioning trolley is locked and fixed after the positioning trolley reaches a position A, and at the moment, the central line of the rectangular die hole, the central line of the shaped core block, the central line of the fixed rod and the central line of the drawing are located on the same straight line;
(3) and (3) moving the drawing trolley along the direction far away from the rolling unit, rolling the blank pipe by the four rollers at the moment to finish the processing of one rectangular steel pipe, taking down the processed rectangular steel pipe, moving the drawing trolley to enable the drawing trolley to be close to the rolling unit, and repeating the steps (2) to (3) to finish the drawing forming of the rectangular steel pipe with the same specification.
And when a seamless rectangular steel pipe of another specification needs to be processed, replacing the four rollers and the shaping core block, and then operating according to the steps.
Finally, it should be noted that the above-mentioned embodiments of the present invention are only examples for illustrating the present invention, and are not limitations to the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.
Claims (9)
1. The forming device for the seamless rectangular steel tube is characterized by comprising a shaping core block, a rolling unit, a positioning unit and a drawing unit, wherein the shaping core block consists of a shaping section, a chamfer section and an inverted cone section, the shaping section is a rectangular block, and the cross section of the rectangular block is consistent with the rectangular inner surface of the cross section of the seamless rectangular steel tube to be formed; the chamfering section and the inverted cone section are conical blocks with rectangular cross sections and are respectively positioned at two ends of the shaping section, one end of the chamfering section is correspondingly connected with one end of the shaping section, and the other end of the chamfering section is a rectangle I which is reduced along the direction far away from the shaping section; one end of the inverted cone section is correspondingly connected with the other end of the shaping section, and the other end of the inverted cone section is a rectangle II which is reduced along the direction far away from the shaping section;
the rolling unit comprises a first base, four rollers and a rack, the rack is fixedly arranged on the upper surface of the first base, the rack is of a rectangular frame structure, the four rollers are rotatably arranged on the rack, two of the rollers are vertically arranged opposite to each other and are positioned on the upper side and the lower side of the rack, and the two rollers form vertical rollers; the other two rollers are horizontally arranged on the left side and the right side of the frame in an opposite way, and the two rollers form a horizontal roller; the distance between the two vertical rollers corresponds to the length of the seamless rectangular steel pipe to be formed; the distance between the two horizontal rollers corresponds to the width of the seamless rectangular steel pipe to be formed; the circle center connecting line of the two vertical rollers is vertical to and intersected with the circle center connecting line of the two horizontal rollers; the four rollers are oppositely arranged in pairs, the circumferential surfaces of the four rollers are encircled to form a rectangular die hole, so that the blank pipe is rolled from four directions by utilizing the rotating circumferential surfaces of the four rollers, the length of the rectangular die hole is the distance between the two rollers on the upper side and the lower side of the rack, and the width of the rectangular die hole is the distance between the two rollers on the left side and the right side of the rack;
the positioning unit and the drawing unit are respectively positioned at the front side and the rear side of the rectangular die hole, the shaping section of the shaping core block is correspondingly arranged in the rectangular die hole, and the inverted cone section of the shaping core block is fixedly connected with the positioning unit through a fixing rod so as to fix the shaping core block; the drawing unit is fixedly connected with one end of the blank pipe, so that the blank pipe can be conveniently drawn and formed; the central line of the rectangular die hole, the central line of the shaping core block, the central line of the drawing unit and the central line of the positioning unit are positioned on the same straight line.
2. The apparatus according to claim 1, wherein the two vertical rollers roll the upper and lower surfaces and the four chamfers of the seamless rectangular steel pipe to be formed, the two horizontal rollers roll the two sides of the seamless rectangular steel pipe to be formed, the two vertical rollers are provided with a groove on the circumferential surface, the groove has a U-shaped cross section to form a U-shaped groove, and the bottom of the U-shaped groove is smoothly transited to the two side walls and corresponds to the four corners of the seamless rectangular steel pipe to be formed.
3. The seamless rectangular steel tube forming device as claimed in claim 1, wherein the positioning unit comprises a second base and a positioning trolley, the fixing rod is fixedly connected with the positioning trolley, a track I corresponding to a running track of the positioning trolley is arranged on the surface of the second base, and the positioning trolley can reciprocate on the track I and can be locked and fixed.
4. The forming device of claim 3, wherein a connecting rod is arranged between the fixing rod and the positioning trolley, one end of the connecting rod is fixedly connected with the fixing rod, and the other end of the connecting rod is fixedly connected with the positioning trolley.
5. The forming device of claim 1, wherein a connecting section is further disposed between the inverted cone section and the fixing rod, one end of the connecting section is fixedly connected with the inverted cone section correspondingly, and the other end of the connecting section is fixedly connected with the fixing rod correspondingly.
6. The forming device of claim 1, wherein the drawing unit comprises a third base and a drawing trolley, one end of the parison tube is fixedly connected with the drawing trolley, the surface of the third base is provided with a track II corresponding to the drawing operation track, and the drawing trolley can reciprocate on the track II to repeatedly draw the parison tube into the rectangular steel tube.
7. The forming device of claim 6, wherein the drawing carriage is provided with a clamp for clamping and fixing the blank pipe.
8. The forming device of claim 5, wherein the shaping section, the chamfering section, the inverted cone section and the connecting section are integrally formed to form a shaping core block.
9. The forming device of claim 1, wherein the rollers are fixed to the frame by bearing blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920773765.7U CN210059363U (en) | 2019-05-27 | 2019-05-27 | Seamless rectangular steel pipe forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920773765.7U CN210059363U (en) | 2019-05-27 | 2019-05-27 | Seamless rectangular steel pipe forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210059363U true CN210059363U (en) | 2020-02-14 |
Family
ID=69454543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920773765.7U Active CN210059363U (en) | 2019-05-27 | 2019-05-27 | Seamless rectangular steel pipe forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210059363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052503A (en) * | 2019-05-27 | 2019-07-26 | 重庆钢铁(集团)有限责任公司 | A kind of seamless rectangular steel pipe forming device and forming method |
| CN117443961A (en) * | 2023-09-25 | 2024-01-26 | 合肥工业大学 | Drawing and rolling die assembly for square shell |
-
2019
- 2019-05-27 CN CN201920773765.7U patent/CN210059363U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052503A (en) * | 2019-05-27 | 2019-07-26 | 重庆钢铁(集团)有限责任公司 | A kind of seamless rectangular steel pipe forming device and forming method |
| CN110052503B (en) * | 2019-05-27 | 2024-02-02 | 宝武特冶航研科技有限公司 | Seamless rectangular steel pipe forming device and forming method |
| CN117443961A (en) * | 2023-09-25 | 2024-01-26 | 合肥工业大学 | Drawing and rolling die assembly for square shell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210059363U (en) | Seamless rectangular steel pipe forming device | |
| JP5057467B2 (en) | Molding apparatus, shoe thereof and molding method | |
| CN107234443B (en) | Three-dimensional variable-curvature section bar on-line bending forming device actively drawn by robot | |
| CN104339124A (en) | Multi-curvature forming method for stainless steel cylinder | |
| EP3812056A1 (en) | Medium/small-diameter thick-walled metal tube and preparation method therefor | |
| WO2022134492A1 (en) | Cold roll forming method for special-shaped rod having mounting grooves | |
| CN111250565B (en) | Straightening device for metal thin-wall circular tube | |
| CN211052236U (en) | Online arc bending device | |
| CN206810969U (en) | A kind of forming U shaped articles mould of longitudinal submerged arc welded pipe | |
| CN110052503B (en) | Seamless rectangular steel pipe forming device and forming method | |
| CN107931416A (en) | A kind of device and method of spinning tube reducing and space free bend synchronous forming | |
| WO2002024366A1 (en) | Method of forming cold diametrally reducing roll for metal pipe and metal pipe formed by the method | |
| CN109513791A (en) | A kind of overlength metal pipe material variable diameter spinning machine | |
| CN110788175B (en) | Roll bending forming method and device for straight edge of pipe to be welded | |
| CN205342455U (en) | Shaping production line of many specifications side pipe roll extrusion | |
| CN110993190A (en) | Contact wire and preparation method and application thereof | |
| CN207071843U (en) | Evener inside and outside a kind of stainless steel tube | |
| KR101411755B1 (en) | Die Assembly For Radial Forging Process And Radial Forging Process Using The Same | |
| US20090113975A1 (en) | Roll die assemblies for pilger mills | |
| CN113617943B (en) | Drawing die for rectangular-section deep-cylinder thin-wall metal part and machining process thereof | |
| CN110722004B (en) | Rolling method of metal pipe | |
| CN110434177A (en) | A kind of processing technology thickened for hollow pipe tube reducing | |
| CN108971277B (en) | Automatic straightening machine | |
| CN202516903U (en) | Die for pipe bender | |
| CN207239105U (en) | A kind of guide device for casting blank of continuous caster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |