CN219520313U - Positive and negative bending all-in-one machine for hot rolled ribbed steel bars - Google Patents
Positive and negative bending all-in-one machine for hot rolled ribbed steel bars Download PDFInfo
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- CN219520313U CN219520313U CN202223215479.XU CN202223215479U CN219520313U CN 219520313 U CN219520313 U CN 219520313U CN 202223215479 U CN202223215479 U CN 202223215479U CN 219520313 U CN219520313 U CN 219520313U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a hot rolled ribbed steel bar forward and backward bending integrated machine which comprises a frame, a pair of forward bending supporting seats and a pair of backward bending supporting seats, wherein the frame is connected with a pressure head assembly through a reciprocating mechanism, the pressure head assembly is connected with a backward bending piece, and a fixed groove is reserved between the pressure head assembly and the backward bending piece; the pressure head assembly is located between the two forward bending support seats, and the reverse bending piece is located between the two reverse bending support seats. The reciprocating mechanism, the pressure head assembly and the bending piece are arranged to drive the middle part of the steel bar to be pressed down or pulled up; by arranging the positive bending supporting seats, when the pressure head assembly drives the middle part of the steel bar to move downwards, the two positive bending supporting seats respectively support the two ends of the steel bar, so that the middle part of the steel bar can implement positive pressure under the action of the downward pressure of the pressure head assembly; through setting up the back-bending supporting seat, when the back-bending piece pull-up drives the reinforcing bar middle part and upwards moves, two back-bending supporting seats are made respectively at the reinforcing bar both ends to make the reinforcing bar middle part implement back pressure under the effect of the upward thrust of back-bending piece, the process of back-and-forth bending experiment is continuous and efficient.
Description
Technical Field
The utility model relates to the technical field of steel bar detection, in particular to a hot-rolled ribbed steel bar positive and negative bending integrated machine.
Background
With the execution of the section 2 of steel for reinforced concrete, namely hot rolled ribbed steel bar, GB/T1499.2-2018, reverse bending detection is required to be carried out on all the steel bars with the brands E, and whether cracks are generated at the positions after reverse bending is observed. Reverse bend detection refers to: the steel bar is bent to 90 degrees in the forward direction and then bent to 20 degrees in the reverse direction, so that the steel bar returns to the state of being bent to 70 degrees in the forward direction.
The existing device for detecting reverse bending needs to replace corresponding clamps before forward bending and reverse bending are implemented, and the steel bars need to be taken down before the clamps are replaced, so that the device can complete the forward and reverse bending test process of the steel bars, but the continuity and efficiency are low during the test.
Disclosure of Invention
The utility model aims to provide a hot rolled ribbed steel bar positive and negative bending integrated machine, which solves the technical problems of low continuity and efficiency of the conventional device for the positive and negative bending experiment of the steel bar.
The utility model is realized by the following technical scheme:
a hot rolled ribbed bar forward and reverse bending all-in-one machine comprising: the machine frame is connected with a pressure head assembly through a reciprocating mechanism, the pressure head assembly is connected with a reverse bending piece, a fixing groove is reserved between the pressure head assembly and the reverse bending piece, and the fixing groove is used for fixing the middle part of a reinforcing steel bar; the positive bending support seats are arranged on the frame, the pressure head assembly is arranged between the two positive bending support seats, and the positive bending support seats are used for supporting first bus bars at two ends of the reinforcing steel bars; the bending support seats are arranged on the frame, the bending piece is arranged between the two bending support seats, and the bending support seats are used for supporting second bus bars at two ends of the reinforcing steel bars; the distance between the first bus bar and the second bus bar is the diameter of the reinforcing steel bar.
Optionally, the pressure head assembly includes pressure head, curved core and bending die, the tail end of pressure head with reciprocating mechanism connects, curved core is cylindric, the one end of curved core with the head end of pressure head is connected, the bending die is the central angle is greater than 180 cylindric laminary, the bending die suit in the lateral wall of curved core, the bending die surface with form between the bending die spare the fixed slot.
Optionally, the reverse bending piece includes the connecting plate and colludes the board, the connecting plate with collude the board and connect to L shape, the connecting plate keep away from collude one side of board and be connected with the pressure head, collude the board surface with form between the surface of bending die the fixed slot.
Optionally, one side of the hook plate, which is close to the bending die, is provided with a reverse bending cushion block, one side of the reverse bending cushion block, which is close to the bending die, is provided with an embedded groove, and the embedded groove is used for embedding reinforcing steel bars.
Optionally, the forward-bending support base is slidably connected to the frame, so that a pair of forward-bending support bases can approach or depart from each other.
Optionally, the positive bending supporting seat is in sliding connection with the support through an adjusting screw, the adjusting screw is in rotating connection with the frame, threads with opposite rotation directions are arranged at two ends of the adjusting screw, and the two positive bending supporting seats are in threaded connection with two ends of the adjusting screw respectively.
Optionally, the back-bending supporting seats are in one-to-one correspondence with the forward-bending supporting seats, and the back-bending supporting seats are connected with the corresponding forward-bending supporting seats.
Optionally, the forward bending supporting seat is provided with a first guide roller, the backward bending supporting seat is provided with a second guide roller, the axial directions of the first guide roller and the second guide roller are perpendicular to the axial direction of the adjusting screw, the first guide roller is used for supporting the first generatrix of the two ends of the reinforcing steel bar, and the second guide roller is used for supporting the second generatrix of the two ends of the reinforcing steel bar.
Optionally, the distance between two of said second guide rollers is smaller than the distance between two of said first guide rollers.
Optionally, the reciprocating mechanism is a hydraulic cylinder.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
according to the hot rolled ribbed steel bar positive and negative bending integrated machine, the frame is arranged to support each part of the device, the reciprocating mechanism and the pressure head assembly are arranged to enable the pressure head assembly to realize downward pressing and upward pulling, the pressure head assembly is connected with the reverse bending piece to enable a fixed groove to be formed between the pressure head assembly and the reverse bending piece, the middle part of the steel bar is fixed through the fixed groove, and therefore the middle part of the steel bar is driven to be downward pressed or pulled upward; on the basis, a pair of positive bending supporting seats are arranged, so that the pressure head assembly is positioned between the two positive bending supporting seats, when the reciprocating mechanism drives the pressure head assembly to press down, the pressure head assembly drives the middle part of the steel bar to move downwards, at the moment, the two positive bending supporting seats respectively support the first bus parts at the two ends of the steel bar to limit the two ends of the steel bar, and therefore the middle part of the steel bar is bent to 90 degrees under the action of the downward pressure of the pressure head assembly, and positive pressure of the steel bar is implemented; on this basis, through setting up a pair of back-bending supporting seat, make the back-bending piece be located between two back-bending supporting seats, reciprocating mechanism drives the pressure head subassembly pull-up, thereby drive back-bending piece pull-up, thereby drive the reinforcing bar middle part and shift up, two back-bending supporting seats support the second generating line department at reinforcing bar both ends respectively this moment, spacing to the reinforcing bar both ends, thereby make the reinforcing bar middle part back pressure 20 under the effect of the thrust of back-bending piece, make the malleation bending angle of reinforcing bar be 70, implement the back pressure of reinforcing bar, whole positive and negative bending experimental process is continuous, and efficient.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
fig. 1 is a schematic diagram of a hot rolled ribbed bar forward and backward bending integrated machine provided by the utility model;
fig. 2 is a partial front view of the hot rolled ribbed bar forward and backward bending integrated machine provided by the utility model in an initial state;
fig. 3 is a partial front view of the hot rolled ribbed bar of the present utility model in positive pressure;
fig. 4 is a partial front view of the hot rolled ribbed bar of the present utility model during back pressure.
In the drawings, the reference numerals and corresponding part names:
0-reinforcing steel bar; 1-a frame; 2-a fixed groove; 3-a reciprocating mechanism; 10-a positive bending supporting seat; 11-adjusting the screw; 12-a first guide roller; 20-a reverse bending supporting seat; 21-a second guide roller; 30-pressing head; 31-bending the core; 32-bending die; 40-bending piece; 41-connecting plates; 42-hooking plate; 43-bending the cushion block; 431-embedded groove.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
Examples
Referring to fig. 1 to 4, a hot rolled ribbed bar forward and backward bending integrated machine provided by an embodiment of the utility model includes: the machine frame 1 is connected with a pressure head assembly through a reciprocating mechanism 3, the reciprocating mechanism can move along the vertical direction, the pressure head assembly is connected with a reverse bending piece 40, a fixing groove 2 is reserved between the pressure head assembly and the reverse bending piece 40, and the fixing groove 2 is used for fixing the middle part of a reinforcing steel bar 0; the second comprises a pair of positive bending support seats 10, wherein the positive bending support seats 10 are arranged on the frame 1, the pressure head assembly is positioned between the two positive bending support seats 10, and the positive bending support seats 10 are used for supporting first bus bars at two ends of the reinforcing steel bars 0; the third comprises a pair of back-bending supporting seats 20, the back-bending supporting seats 20 are arranged on the frame 1, the back-bending piece 40 is positioned between the two back-bending supporting seats 20, and the back-bending supporting seats 20 are used for supporting second bus bars at two ends of the reinforcing steel bars 0; the distance between the first bus bar and the second bus bar is the diameter of the reinforcing steel bar 0.
By arranging the frame 1, supporting is provided for each part of the device, the pressing head assembly can realize downward pressing and upward pulling by arranging the reciprocating mechanism 3 and the pressing head assembly, a fixed groove 2 is formed between the pressing head assembly and the reverse bending piece 40 by connecting the pressing head assembly, and the middle part of the reinforcing steel bar 0 is fixed by the fixed groove 2, so that the middle part of the reinforcing steel bar 0 is driven to be downward pressed or pulled upward; on the basis, by arranging a pair of positive bending supporting seats 10, a pressure head assembly is positioned between the two positive bending supporting seats 10, when the reciprocating mechanism 3 drives the pressure head assembly to press down, the pressure head assembly drives the middle part of the steel bar 0 to move downwards, at the moment, the two positive bending supporting seats 10 respectively support the first bus positions at the two ends of the steel bar 0 and limit the two ends of the steel bar 0, so that the middle part of the steel bar 0 is bent to 90 degrees under the action of the downward pressure of the pressure head assembly, and the positive pressure of the steel bar 0 is implemented; on this basis, through setting up a pair of back-bending supporting seat 20, make the back-bending piece 40 be located between two back-bending supporting seats 20, reciprocating mechanism 3 drives the pressure head subassembly pull-up, thereby drive back-bending piece 40 pull-up, thereby drive bar 0 middle part and shift up, the second generating line department at two ends of bar 0 is supported respectively to two back-bending supporting seats 20 this moment, carry out spacing to bar 0 both ends, thereby make bar 0 middle part back-pressure 20 under the effect of the thrust of back-bending piece 40, make bar 0's malleation bending angle be 70, implement bar 0's back-pressure, whole positive and negative bending experimental process is continuous, and efficient.
The first bus bar may be any bus bar of the reinforcing steel bar 0, and the second bus bar is a bus bar opposite to the first bus bar, so that the distance between the two bus bars is the diameter of the reinforcing steel bar 0.
In order to further explain the specific structure of the ram assembly, the ram assembly includes a ram 30, a curved core 31 and a bending die 32, the tail end of the ram 30 is connected with the reciprocating mechanism 3, the curved core 31 is cylindrical, one end of the curved core 31 is connected with the head end of the ram 30, the bending die 32 is cylindrical and layered with a central angle greater than 180 °, the bending die 32 is sleeved on the side wall of the curved core 31, and the fixing groove 2 is formed between the outer surface of the bending die 32 and the reverse bending assembly.
By arranging the bending core 31 to be cylindrical, the steel bar 0 is guided by the cylindrical surface of the bending core 31 during positive bending, so that the bending part can form an arc instead of a broken line, the bending part is smoothly transited, and the steel bar 0 is prevented from being sheared; by arranging the bending die 32 and enabling the bending die to be sleeved with the bending core 31, different types of bending dies 32 can be replaced according to different types of reinforcing steel bars 0 and positive bending requirements.
To further explain the specific structure of the recurve 40, the recurve 40 includes a connecting plate 41 and a hook plate 42, the connecting plate 41 and the hook plate 42 are connected in an L shape, one side of the connecting plate 41 away from the hook plate 42 is connected with the ram 30, and the fixing groove 2 is formed between the surface of the hook plate 42 and the outer surface of the bending die 32.
By arranging the bending-back member 40 in an L shape, the bending-back member 40 can be hooked after being connected with the pressure head assembly, and when the pressure head assembly is pulled up, the bending-back member 40 can be hooked with the reinforcing steel bar 0 to perform bending-back.
In order to prevent the steel bar 0 from being removed from the fixing groove 2 along the radial direction of the steel bar, a reverse bending cushion block 43 is arranged on one surface of the hook plate 42, which is close to the bending die 32, an embedding groove 431 is arranged on one side of the reverse bending cushion block 43, which is close to the bending die 32, and the embedding groove 431 is used for embedding the steel bar 0.
It should be noted that, when the type of the reinforcing steel bar 0 is replaced, the reverse bending cushion block 43 and the hook plate 42 are detachably connected, and the reverse bending cushion block 43 adapted to the reinforcing steel bar 0 can be replaced in advance, so that the embedded groove 431 on the reverse bending cushion block is matched with the corresponding type of the reinforcing steel bar 0.
In order to perform the positive and negative bending test on the reinforcing steel bars 0 of different types, the positive bending support base 10 is slidably connected with the frame 1, so that a pair of positive bending support bases 10 can be close to or far from each other.
With the above arrangement, when the reinforcing bar 0 is thick or hard, the distance between the two forward-bending support bases 10 can be properly increased so as to facilitate the forward bending.
In order to further optimize the structure, the forward-bending support base 10 is slidably connected with the bracket 1 through an adjusting screw 11, the adjusting screw 11 is rotatably connected with the frame 1, threads with opposite rotation directions are arranged at two ends of the adjusting screw 11, and the two forward-bending support bases 10 are respectively in threaded connection with two ends of the adjusting screw 11.
Through setting up adjusting screw 11, make its both ends set up and revolve the opposite screw thread of direction, when rotating adjusting screw 11, can make two normal curved supporting seats 10 be close to each other or keep away from to the sliding distance of both is unanimous, convenient adjustment.
Preferably, the back-bending support seats 20 are in one-to-one correspondence with the front-bending support seats 10, and the back-bending support seats 20 are connected with the corresponding front-bending support seats 10.
Through the above arrangement, the backward bending support base 20 can slide synchronously with the forward bending support base 10, and the relative position between the backward bending support base and the forward bending support base is fixed, so that the reinforcing steel bars 0 are convenient to set.
For further explanation of how the forward bending support base 10 and the backward bending support base 20 support the reinforcing steel bar 0, the forward bending support base 10 is provided with a first guide roller 12, the backward bending support base 20 is provided with a second guide roller 21, the axial directions of the first guide roller 12 and the second guide roller 21 are perpendicular to the axial direction of the adjusting screw 11, the first guide roller 12 is used for supporting the first generatrix of the two ends of the reinforcing steel bar 0, and the second guide roller 21 is used for supporting the second generatrix of the two ends of the reinforcing steel bar 0.
By arranging the first guide roller 12 and the second guide roller 21, the steel bar 0 is supported by the first guide roller 12 and the second guide roller 21, the friction force at the supporting position can be effectively reduced, and when forward bending and reverse bending are implemented, the two ends of the steel bar 0 slide, at the moment, the friction force at the sliding position can be effectively reduced by the first guide roller 12 and the second guide roller 21.
Preferably, the distance between two of said second guide rollers 21 is smaller than the distance between two of said first guide rollers 12.
By the above arrangement, the reinforcing bar 0 is prevented from being bent into an M-shape when the positive bending is performed, and the reinforcing bar 0 is ensured to be bent into a V-shape when the distance between the second guide rollers 21 is smaller than the distance between the first guide rollers 12.
Preferably, the reciprocating mechanism 3 is a hydraulic cylinder.
In other embodiments, any moving mechanism in the prior art may be adopted, and only the ram assembly needs to be driven to push down or pull up.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The utility model provides a positive and negative curved all-in-one of hot rolling ribbed steel bar which characterized in that includes:
the device comprises a frame (1), wherein the frame (1) is connected with a pressure head assembly through a reciprocating mechanism (3), the pressure head assembly is connected with a reverse bending piece (40), a fixing groove (2) is reserved between the pressure head assembly and the reverse bending piece (40), and the fixing groove (2) is used for fixing the middle part of a reinforcing steel bar;
the positive bending support seats (10) are arranged on the frame (1), the pressure head assembly is positioned between the two positive bending support seats (10), and the positive bending support seats (10) are used for supporting first bus bars at two ends of a reinforcing steel bar;
the pair of reverse bending support seats (20), the reverse bending support seats (20) are arranged on the frame (1), the reverse bending piece (40) is positioned between the two reverse bending support seats (20), and the reverse bending support seats (20) are used for supporting second bus bars at two ends of the reinforcing steel bars;
the distance between the first bus bar and the second bus bar is the diameter of the reinforcing steel bar.
2. The hot rolled ribbed bar positive and negative bending all-in-one machine according to claim 1, wherein the pressure head assembly comprises a pressure head (30), a bending core (31) and a bending die (32), the tail end of the pressure head (30) is connected with the reciprocating mechanism (3), the bending core (31) is cylindrical, one end of the bending core (31) is connected with the head end of the pressure head (30), the bending die (32) is cylindrical and layered, the central angle of the bending die (32) is larger than 180 degrees, the bending die (32) is sleeved on the side wall of the bending core (31), and a fixing groove (2) is formed between the outer surface of the bending die (32) and the reverse bending piece (40).
3. The hot rolled ribbed bar forward and backward bending integrated machine according to claim 2, characterized in that said backward bending member (40) comprises a connecting plate (41) and a hooking plate (42), said connecting plate (41) and said hooking plate (42) are connected in an L shape, one side of said connecting plate (41) away from said hooking plate (42) is connected with a pressing head (30), and said fixing groove (2) is formed between the surface of said hooking plate (42) and the outer surface of said bending die (32).
4. A hot rolled ribbed bar forward and backward bending integrated machine according to claim 3, characterized in that a reverse bending cushion block (43) is arranged on one surface of the hook plate (42) close to the bending die (32), an embedding groove (431) is arranged on one side of the reverse bending cushion block (43) close to the bending die (32), and the embedding groove (431) is used for embedding the reinforcing bar.
5. A machine for forward and backward bending of hot rolled ribbed steel bars as claimed in any one of claims 1 to 4, wherein said forward bending support (10) is slidingly connected to said frame (1) so as to enable a pair of said forward bending support (10) to be moved closer to or farther from each other.
6. The positive and negative bending integrated machine for hot rolled ribbed steel bars according to claim 5, wherein the positive bending supporting seat (10) is slidably connected with the frame (1) through an adjusting screw (11), the adjusting screw (11) is rotatably connected with the frame (1), threads with opposite rotation directions are arranged at two ends of the adjusting screw (11), and the two positive bending supporting seats (10) are respectively in threaded connection with two ends of the adjusting screw (11).
7. The positive and negative bending integrated machine for hot rolled ribbed steel bars according to claim 6, wherein the reverse bending supporting seats (20) are in one-to-one correspondence with the positive bending supporting seats (10), and the reverse bending supporting seats (20) are connected with the corresponding positive bending supporting seats (10).
8. The positive and negative bending integrated machine for hot rolled ribbed steel bars according to claim 7, characterized in that the positive bending support base (10) is provided with a first guide roller (12), the negative bending support base (20) is provided with a second guide roller (21), the axial directions of the first guide roller (12) and the second guide roller (21) are perpendicular to the axial direction of the adjusting screw (11), the first guide roller (12) is used for supporting the first bus bar at two ends of the steel bars, and the second guide roller (21) is used for supporting the second bus bar at two ends of the steel bars.
9. A machine for forward and backward bending of hot rolled ribbed steel bars according to claim 8, characterized in that the distance between two of said second guide rollers (21) is smaller than the distance between two of said first guide rollers (12).
10. The hot rolled ribbed bar forward and backward bending integrated machine according to claim 1, characterized in that said reciprocating mechanism (3) is a hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223215479.XU CN219520313U (en) | 2022-12-01 | 2022-12-01 | Positive and negative bending all-in-one machine for hot rolled ribbed steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223215479.XU CN219520313U (en) | 2022-12-01 | 2022-12-01 | Positive and negative bending all-in-one machine for hot rolled ribbed steel bars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219520313U true CN219520313U (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223215479.XU Active CN219520313U (en) | 2022-12-01 | 2022-12-01 | Positive and negative bending all-in-one machine for hot rolled ribbed steel bars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219520313U (en) |
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2022
- 2022-12-01 CN CN202223215479.XU patent/CN219520313U/en active Active
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