CN211052238U - Roll bending machine convenient to adjust backing roll height - Google Patents
Roll bending machine convenient to adjust backing roll height Download PDFInfo
- Publication number
- CN211052238U CN211052238U CN202021049068.6U CN202021049068U CN211052238U CN 211052238 U CN211052238 U CN 211052238U CN 202021049068 U CN202021049068 U CN 202021049068U CN 211052238 U CN211052238 U CN 211052238U
- Authority
- CN
- China
- Prior art keywords
- die holder
- fixing base
- shaft
- roll bending
- bending machine
- 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
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model provides a roll bending machine convenient for adjusting the height of a supporting roll, which comprises a supporting frame arranged on a fixed seat of the roll bending machine, used for supporting a workpiece during roll bending to obtain a required labyrinth during bending of the workpiece, a limiting groove is arranged on a fixed seat, a through adjusting hole is arranged on the end surface of the fixed seat, the adjusting hole passes through the limiting groove, a supporting frame comprises a supporting rod, an adjusting rod and a threaded sleeve, the adjusting rod is hinged at the end part of the supporting rod, the supporting rod is laid on the front end surface of the fixed seat, the threaded sleeve can be rotatably arranged in the limiting groove around the axial lead of the threaded sleeve and limits axial movement along the adjusting hole, threads are formed on the periphery of the adjusting rod, the adjusting rod passes through the threaded sleeve to be in threaded fit with the threaded sleeve, the adjusting rod penetrates out from, the lifting of the supporting rod is realized by rotating the adjusting rod to jack or lower the end part of the supporting rod hinged with the adjusting rod. The utility model discloses roll bender is through setting up the support frame is convenient for adjust the bearing height to the work piece, the bearing height that corresponds when satisfying the required maze of processing work piece.
Description
Technical Field
The utility model relates to a roll bending machine, in particular to roll bending machine convenient to adjust backing roll height.
Background
The bending roll can bend various profiles, including metal profiles such as aluminum, steel, stainless steel, copper and the like, and pipes. For example, CN210497808U, the bending roll includes two rotatable die wheels and a rotatable bending roll arranged in an isosceles triangle, the two die wheels are oppositely disposed at the base angle position of the isosceles triangle, the bending roll is disposed at the vertex angle position of the isosceles triangle, and the bending roll reciprocates (moves up and down) along the perpendicular bisector of the base line of the isosceles triangle, so as to bend and roll the workpiece disposed between the two die wheels and the bending roll. The wheel shaft of the mould wheel can be rotatably arranged on the fixed seat around the axial lead of the wheel shaft, the wheel shaft of the roll bending wheel can be rotatably arranged on the sliding body around the axial lead of the wheel shaft, and the sliding body can be slidably arranged on the fixed seat. During processing, the two die wheels are pressed against one side of the workpiece, and the roll bending wheel can be rotationally pressed against the other side of the workpiece. Usually, the surface of the fixing seat is provided with supporting rollers capable of rotating around the axis line on two sides of an isosceles triangle formed by the die wheel and the roll bending wheel, so that a workpiece can support two ends of the workpiece during processing, and the workpiece is conveyed during rolling assistance.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is to provide a roll bending machine which is easy to operate and can improve the accuracy of the height adjustment of the support roller.
The utility model provides a roll bender convenient to adjust backing roll height, including fixing base and the support frame of setting on the fixing base, a support that corresponds different labyrinth work pieces when being used for roll bending, the spacing groove has been seted up on the fixing base, set up the regulation hole that link up on the fixing base terminal surface, the regulation hole passes the spacing groove, the support frame includes the bracing piece, adjust pole and thread bush, it articulates the tip at the bracing piece to adjust the pole, the bracing piece is laid on the preceding terminal surface of fixing base, the thread bush can set up at the spacing inslot around its axial lead rotation ground, restriction thread bush is along adjusting hole axial displacement, it is formed with the screw thread to adjust the pole periphery, it passes thread bush and thread bush screw-thread fit to adjust the pole, it wears out to the rear end face of fixing base to adjust the pole.
Furthermore, a section of the adjusting rod extending out relative to the rear end face of the fixing seat is provided with scales.
Further, the peripheral surface of bracing piece is equipped with the roller through the bearing housing.
Furthermore, the limiting groove is a notch formed on the peripheral side of the fixing seat.
Further, the length of the thread bush is equivalent to the width of the limiting groove.
The die holder wheel structure comprises a die holder, a die holder wheel shaft and a die wheel sleeved on the die holder wheel shaft, the die holder can be transversely arranged in the guide groove of the fixed seat in a sliding manner, the die holder wheel shaft is arranged on the die holder through a bearing, and the die holder wheel shaft is perpendicular to the end face of the fixed seat.
Further, the die holder wheel structure comprises a displacement adjusting structure for pushing the die holder to move transversely along the guide groove, the displacement adjusting structure comprises a lead screw, a hand wheel connected to one end of the lead screw, a threaded seat sleeved on the lead screw and an end sleeve fixed on the side wall of the fixed seat, a sleeve hole of the end sleeve corresponds to a shaft hole in the side face of the fixed seat, a bearing is installed on the lead screw and sleeved in a sleeve hole of the end sleeve, the lead screw penetrates through the shaft hole in the side face of the fixed seat into the guide groove, the threaded seat sleeved on the lead screw is fixedly connected with the die holder, and the hand wheel is.
Further, the die holder wheel structure comprises a die holder wheel driving structure for driving a die holder wheel shaft to rotate around the axis line of the die holder wheel shaft, the die holder wheel driving structure comprises a motor and a universal coupling, the motor is fixedly installed in the rack, an output shaft of the motor faces the die holder wheel shaft, an output shaft of the motor is connected with one end of the universal coupling, and the other end of the universal coupling is connected with the die holder wheel shaft.
Furthermore, the roll bending machine comprises a rolling wheel structure arranged on the fixed seat, a sliding groove is longitudinally formed in the front end face of the fixed seat, the rolling wheel structure comprises a shaft seat, a rolling wheel shaft and a rolling wheel sleeved on the rolling wheel shaft, the shaft seat is longitudinally slidably arranged in the sliding groove of the fixed seat, the rolling wheel shaft is arranged on the shaft seat through a bearing, and the rolling wheel shaft is perpendicular to the end face of the fixed seat.
Compared with the prior art, the utility model discloses the bending roll machine is through opening the spacing groove in the side of fixing base, puts into thread bush restriction thread bush passes the spacing groove through seting up the regulation hole on the terminal surface of fixing base, the regulation pole of support frame pass the regulation hole and with the thread bush spiro union of spacing inslot, operating personnel only need through manual rotation thread bush or adjust the pole, can realize that the regulation pole is flexible, and the thread bush is spacing stable, and is carved with the scale on the regulation pole, and convenient operation just can realize treating the accurate regulation of the support height of processing work piece.
Drawings
Fig. 1 is an overall view of a roll bending machine according to a preferred embodiment of the present invention;
FIG. 2 is a block diagram of the roll bending machine of FIG. 1 with the housing removed;
FIG. 3 is a partially exploded view of the roll bending machine of FIG. 1;
FIG. 4 shows a top view of the roll bending machine (with the top shell removed);
FIG. 5 is a cross-sectional view of the roll bending machine taken along a transverse midline profile;
FIG. 6 is a cross section of the bending machine after bending a longitudinal section of a fixing plate at the bending end;
fig. 7 is a partially exploded view of the roll bending machine shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and features in the embodiments and embodiments in the present application can be combined with each other without conflict.
Referring to fig. 1 and 2, the present invention provides a roll bending machine, which includes a frame 10, a fixing base 20 disposed at one end of the frame 10, and a die holder wheel structure 30 and a rolling wheel structure 40 disposed on the fixing base 20, wherein the rolling wheel structure 40 and the die holder wheel structure 30 cooperate to roll and bend a profile.
Referring to fig. 3, the fixing base 20 is substantially an isosceles trapezoid having front and rear end faces, two side faces, and top and bottom faces. The front end face of the fixing seat is longitudinally provided with a sliding groove 21, the sliding groove extends downwards from one end adjacent to the top face to the bottom face, and the sliding groove 21 is communicated with the rear end face of the fixing seat. The front end surface of the fixing base is transversely provided with guide grooves 22 at two sides of the bottom end of the sliding groove 21, and the guide groove 22 at each side transversely extends from the side surface adjacent to the side surface to one side of the sliding groove 21 and is not communicated with the sliding groove 21 (see fig. 6). The top surface of the fixing base 20 is provided with a top hole 23 communicated with the sliding groove 21, and two side surfaces of the fixing base 20 are correspondingly provided with shaft holes 24 communicated with the guide groove 22.
Referring to fig. 6, the die holder wheel structure 30 includes a die holder 31, a die holder wheel shaft 32, and a die wheel 33 sleeved on the die holder wheel shaft 32, the die holder 31 is disposed in the guide slot 22 of the fixing base in a transverse sliding manner, the die holder wheel shaft 32 is mounted on the die holder 31 through a bearing, and the die holder wheel shaft 32 is perpendicular to the end surface of the fixing base 20. The die holder wheel structure 30 comprises a displacement adjusting structure for pushing the die holder 31 to move transversely along the guide groove 22, the displacement adjusting structure comprises a screw rod 34, a hand wheel 35 connected to one end of the screw rod 34, a threaded seat 36 sleeved on the screw rod 34 and an end sleeve 37 fixed on the side wall of the fixed seat 20, a sleeve hole of the end sleeve corresponds to a shaft hole 24 on the side surface of the fixed seat 20, a bearing is mounted on the screw rod 34 and sleeved in a sleeve hole of the end sleeve 37, the screw rod 34 penetrates through the shaft hole 24 on the side surface of the fixed seat 20 and into the guide groove 22, the threaded seat 36 sleeved on the screw rod is fixedly connected with the die holder 31, the hand wheel 35 is exposed outside the side surface, and the hand wheel 35 is rotated to drive the screw rod 34 to rotate, so that the threaded seat 36 is driven to move. The two die holder wheel structures 30 are transversely and oppositely arranged on the fixed seat 20, so that the required distance between the two die wheels 33 is determined according to the radian required by the section bar before roll bending, and the corresponding die wheels 33 can be moved by rotating the hand wheels 35 on the corresponding sides, so that the distance between the two die wheels 33 is adjusted.
Referring to fig. 4, the die holder wheel structure 30 further includes a die holder wheel driving structure for driving the die holder wheel shaft 32 to rotate around the axis thereof, the die holder wheel driving structure includes a motor 38 and a universal coupling 39, the motor 38 is fixedly installed in the frame 10, an output shaft of the motor 38 faces the die holder wheel shaft 32, the output shaft of the motor 38 is coupled to one end of the universal coupling 39, the other end of the universal coupling 39 is coupled to the die holder wheel shaft 32, and the motor 38 drives the die holder wheel shaft 32 to rotate around the axis thereof through transmission of the universal coupling 39.
Referring to fig. 5, the rolling wheel structure 40 includes a shaft seat 41, a rolling wheel shaft 42, and a rolling wheel 43 sleeved on the rolling wheel shaft 42, the shaft seat 41 is longitudinally slidably disposed in the sliding slot 21 of the fixing seat, the rolling wheel shaft 42 is mounted on the shaft seat 41 through a bearing, and the rolling wheel shaft 42 is perpendicular to the end surface of the fixing seat 20. The rolling wheel structure 40 includes a pressing mechanism for pushing the shaft seat 41 to move longitudinally along the sliding slot 21, the pressing mechanism includes a hydraulic cylinder 44 and a hydraulic generator 45 connected to the hydraulic cylinder 44 through a pipe, the hydraulic cylinder 44 is mounted on the top surface of the fixed seat 20 through a fixed plate, and a piston rod of the hydraulic cylinder 44 passes through the top hole 23 and is connected to the shaft seat 41 in the sliding slot 21. The hydraulic generator 45 is installed in the lower portion of the frame 10, and generates hydraulic pressure through the hydraulic generator 45 to drive the piston rod of the hydraulic cylinder to extend and retract, so as to drive the shaft seat 41 to lift along the sliding groove 21. When the section is rolled and bent, the shaft seat 41 slides downwards, the rolling wheel 43 presses the section downwards, and the two die holder wheel shafts 32 positioned at the two sides of the rolling wheel 43 upwards support the section to realize the roll bending of the section.
The stitching wheel structure 40 further includes a stitching wheel driving structure for driving the stitching wheel axle 42 to rotate around the axis thereof, and the stitching wheel driving structure is the same as the die holder wheel driving structure and will not be described. By providing the driving mechanism, when the profile is rolled, the two die wheels 33 and the rolling wheels 43 rotate under the action of the corresponding driving mechanism, and the profile can be conveyed while being rolled.
Referring to fig. 7, in order to adjust the supporting height corresponding to the required radius of the workpiece during the roll bending of the workpiece, a supporting frame 50 is disposed on the front end surface of the fixing base 20, and in order to match the supporting frame 50 for installation, further, an adjusting hole 25 and a limiting groove 26 corresponding to the adjusting hole 25 are disposed on the fixing base 20, and the adjusting hole 25 penetrates through the front and rear end surfaces of the fixing base 20, in this embodiment, four adjusting holes 25 are distributed on two sides of the upper end of the fixing base 20, which are adjacent to the corner and the lower end; the four limiting grooves 26 are formed on two sides of the upper end and two sides of the lower end of the fixing base 20, specifically, are notches formed on the peripheral sides of the fixing base 20, and each adjusting hole 25 penetrates through one corresponding limiting groove 26.
The support frame 50 comprises a support rod 51, an adjusting rod 52 and a threaded sleeve 53, wherein the adjusting rod 52 is hinged at two ends of the support rod 51, the support rod 51 is laid on the front end face of the fixed seat 20, the threaded sleeve 53 is installed in the limiting groove 26, the length of the threaded sleeve 53 is approximately equal to the width of the limiting groove 26, the threaded sleeve 53 can rotate around the axial lead and cannot move in the limiting groove 26 along the axial direction of the adjusting hole 25, threads are formed on the periphery of the adjusting rod 52, the adjusting rod 52 passes through the threaded sleeve 53 to be in threaded fit with the threaded sleeve 53, the adjusting rod 52 penetrates out from the rear end face of the fixed seat 20, thus, by rotating the adjusting rod 52 or the threaded sleeve 53, as the threaded sleeve 53 is limited in the limiting groove 26 in the axial direction, the adjusting rod 52 can extend/retract relative to the end face of the fixed seat 20, in this way, the end part of the support rod 51, the lifting of the support rod 51 is realized. It can be understood that, according to the requirement, the two ends of the support rod 51 can be lifted up and down respectively, and do not need to be lifted up and down simultaneously. Furthermore, a section of the adjusting rod 52 extending out of the rear end face of the fixing base 20 is provided with a scale (not shown), so that the ascending/descending height of one end of the adjusting rod 52 connected with the supporting rod 51 can be visually known by marking the scale. In this embodiment, there are two supporting frames 50, and the two supporting rods 51 are disposed in a splayed shape to support the front and rear ends of the workpiece to be roll-bent.
Further, a roller 54 is sleeved on the outer peripheral surface of the support rod 51 through a bearing, and the roller 54 can be regarded as a support roller for conveying the workpiece by the rotation of the roller during the rolling processing of the workpiece.
To sum up, the utility model discloses the limit slot is opened through the side at the fixing base to the bending roll machine, puts into thread bush restriction thread bush passes the limit slot through seting up the regulation hole on the terminal surface of fixing base at axial motion, support frame 50 adjust the pole pass the regulation hole and with the thread bush spiro union of limit slot, operating personnel only need through manual rotation thread bush or adjust the pole, can realize that the regulation pole is flexible, the thread bush is spacing stable, and is carved with the scale on the regulation pole, convenient operation just can realize the accurate regulation to the support height of work piece, satisfies the support height that corresponds when processing the required maze of work piece, and whole support frame structure simple to operate.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transformation that the content of the specification does, or directly or indirectly use in other related technical fields, all including in the same way the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a roll bending machine convenient to adjust backing roll height, includes fixing base (20) and support frame (50) of setting on fixing base (20) for correspond the support of different maze work pieces when roll bending, its characterized in that: the fixing seat (20) is provided with a limiting groove (26), the end face of the fixing seat (20) is provided with a through adjusting hole (25), the adjusting hole (25) penetrates through the limiting groove (26), the support frame (50) comprises a support rod (51), an adjusting rod (52) and a threaded sleeve (53), the adjusting rod (52) is hinged to the end portion of the support rod (51), the support rod (51) is laid on the front end face of the fixing seat (20), the threaded sleeve (53) can be rotatably arranged in the limiting groove (26) around the axial lead of the threaded sleeve, the threaded sleeve (53) is limited to axially move along the adjusting hole (25), threads are formed on the periphery of the adjusting rod (52), the adjusting rod (52) penetrates through the threaded sleeve (53) to be in threaded fit with the threaded sleeve (53), and the adjusting rod (52) penetrates out from the rear end face, the end part of the supporting rod (51) which is hinged with the adjusting rod (52) is lifted up or lowered down by rotating the adjusting rod (52).
2. The roll bending machine according to claim 1, wherein: the section of the adjusting rod (52) extending out relative to the rear end face of the fixed seat (20) is provided with scales.
3. The roll bending machine according to claim 1, wherein: the peripheral surface of the support rod (51) is sleeved with a roller (54) through a bearing.
4. The roll bending machine according to claim 1, wherein: the limiting groove (26) is a notch formed in the peripheral side of the fixing seat (20).
5. The roll bending machine according to claim 1, wherein: the length of the thread sleeve (53) is equivalent to the width of the limiting groove (26).
6. The roll bending machine according to claim 1, wherein: including setting up die holder wheel structure (30) on fixing base (20), guide slot (22) have transversely been seted up on the front end face of fixing base, die holder wheel structure (30) are including die holder (31), die holder shaft (32) and cover establish die wheel (33) on die holder shaft (32), die holder (31) can transversely slide and set up in guide slot (22) of fixing base, die holder shaft (32) pass through the bearing and install on die holder (31), and die holder shaft (32) are perpendicular with the terminal surface of fixing base (20).
7. The roll bending machine according to claim 6, wherein: the die holder wheel structure (30) is including promoting die holder (31) along guide slot (22) lateral shifting's displacement regulation structure, the displacement is adjusted the structure and is included lead screw (34), hand wheel (35) at lead screw (34) one end is connected, establish screw thread seat (36) on lead screw (34) and fix pot head (37) on fixing base (20) lateral wall, the trepanning of pot head is corresponding with shaft hole (24) on the side of fixing base (20), install the bearing on lead screw (34) and establish in the trepanning of pot head (37), shaft hole (24) on lead screw (34) the side of passing fixing base (20) penetrate to guide slot (22) in, establish screw thread seat (36) and die holder (31) rigid coupling on the lead screw, hand wheel (35) expose in the outside of side.
8. The roll bending machine according to claim 6, wherein: the die holder wheel structure (30) comprises a die holder wheel driving structure for driving a die holder wheel shaft (32) to rotate around the axis line of the die holder wheel driving structure, the die holder wheel driving structure comprises a motor (38) and a universal coupling (39), the motor (38) is fixedly installed in the rack (10), the output shaft of the motor (38) faces the die holder wheel shaft (32), the output shaft of the motor (38) is connected with one end of the universal coupling (39), and the other end of the universal coupling (39) is connected with the die holder wheel shaft (32).
9. The roll bending machine according to claim 1, wherein: including setting up rolling wheel structure (40) on fixing base (20), spout (21) have vertically been seted up on the preceding terminal surface of fixing base, rolling wheel structure (40) are including axle bed (41), rolling wheel shaft (42) and cover establish rolling wheel (43) on rolling wheel shaft (42), but axle bed (41) longitudinal sliding ground sets up in spout (21) of fixing base, install on axle bed (41) rolling wheel shaft (42) through the bearing, and rolling wheel shaft (42) are perpendicular with the terminal surface of fixing base (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021049068.6U CN211052238U (en) | 2020-06-10 | 2020-06-10 | Roll bending machine convenient to adjust backing roll height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021049068.6U CN211052238U (en) | 2020-06-10 | 2020-06-10 | Roll bending machine convenient to adjust backing roll height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211052238U true CN211052238U (en) | 2020-07-21 |
Family
ID=71590127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021049068.6U Active CN211052238U (en) | 2020-06-10 | 2020-06-10 | Roll bending machine convenient to adjust backing roll height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211052238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122418A (en) * | 2020-10-14 | 2020-12-25 | 江苏同力日升机械股份有限公司 | Numerical control roller bending device for bending, forming and processing ladder way guide rail |
| CN113441583A (en) * | 2021-07-21 | 2021-09-28 | 山东赛谱数控设备有限公司 | Roll bending machine with roll shaft capable of axially lifting |
-
2020
- 2020-06-10 CN CN202021049068.6U patent/CN211052238U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122418A (en) * | 2020-10-14 | 2020-12-25 | 江苏同力日升机械股份有限公司 | Numerical control roller bending device for bending, forming and processing ladder way guide rail |
| CN113441583A (en) * | 2021-07-21 | 2021-09-28 | 山东赛谱数控设备有限公司 | Roll bending machine with roll shaft capable of axially lifting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211052238U (en) | Roll bending machine convenient to adjust backing roll height | |
| CN209094254U (en) | A kind of three rolls plate bending machine used suitable for different-thickness plate | |
| CN113118253B (en) | Part is bent with bender device that has depth of cut adjustment mechanism | |
| CN201239755Y (en) | Guide rail bending machine | |
| CN215032590U (en) | Aluminium alloy equipment of bending with automatic feeding function | |
| CN211331085U (en) | Steel bar bender | |
| CN201969756U (en) | Curling equipment capable of preventing section from wearing | |
| CN101342543A (en) | Fourteen-roller strip mill | |
| CN211588090U (en) | Roller adjusting device of welded pipe unit | |
| CN208613422U (en) | A kind of novel automatic veneer reeling machine | |
| CN112792174B (en) | Aluminum pipe processing pipe bending machine | |
| CN104759497A (en) | Taper pipe plate rolling machine | |
| CN210995925U (en) | Adjustable die of bending machine | |
| CN110935744A (en) | Cold rolling crimping device for special-shaped welded pipe | |
| CN210547183U (en) | Equipment is used in pile cap production and processing | |
| CN108971277B (en) | Automatic straightening machine | |
| CN204602922U (en) | Taper pipe veneer reeling machine | |
| CN220635918U (en) | Flat material arc bending machine | |
| CN111421033B (en) | Wheel axle support and roll bending machine with same | |
| CN215314908U (en) | Steel bar traceless bending die | |
| CN212370944U (en) | Low-energy-consumption angle steel punching machine with positioning and marking functions | |
| CN212442706U (en) | Anti-distortion roll bending machine | |
| CN215785749U (en) | Be applied to steel wire straightening mechanism of steel wire drawing production line | |
| CN215315092U (en) | Auxiliary roller mounting and adjusting mechanism of steel plate forming machine | |
| CN220635919U (en) | Three-roller rounding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A roll bending machine convenient for adjusting the height of support roll Effective date of registration: 20220126 Granted publication date: 20200721 Pledgee: Guangdong Shunde Rural Commercial Bank Co.,Ltd. science and technology innovation sub branch Pledgor: Guangdong Gaopu Bending Technology Co.,Ltd. Registration number: Y2022980001155 |