Steel bar rib stripping rolling straight thread forming machine

Abstract

The utility model discloses a reinforcing steel bar rib stripping rolling straight thread forming machine, and relates to the technical field of reinforcing steel bar straight thread forming machines. Comprising a machine cabinet, a fixing frame is arranged at the position, close to the left end, of the top of the machine cabinet, a fixing mechanism used for positioning and clamping reinforcing steel bars is arranged on the inner side of the fixing frame, the fixing mechanism comprises a fixed sleeve, arc-shaped clamping plates and a movable sleeve, and the arc-shaped clamping plates are arranged on the inner side of the fixed sleeve in an annular array shape; the movable sleeve is located on the outer side of the fixed sleeve and rotationally connected with the fixed frame. A supporting mechanism for supporting the long steel bars is arranged on the left side of the machine cabinet and comprises a supporting frame, a positioning groove and a sliding rod. Through the arrangement of the fixing mechanism and the supporting mechanism, large-area locking and fixing can be carried out on the reinforcing steel bars, when long reinforcing steel bars are machined, the reinforcing steel bars can be further supported and positioned, the stability of the reinforcing steel bars in the machining process is enhanced, and the situation that the reinforcing steel bars are bent or shaken, and consequently the rib stripping and rolling effect is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar straight thread forming machines, in particular to a steel bar rib stripping and rolling straight thread forming machine. Background Art

[0002] During construction, a steel bar thread rolling machine is required to pre-treat the ends of the steel bars before use. The longitudinal ribs and transverse ribs at the ends of the steel bars to be connected are partially peeled off by cutting, and then threads are rolled out. Finally, the steel bars are connected together through connecting sleeves for use.

[0003] For example, an automatic steel bar straight thread rolling machine with publication number CN216607066U includes a frame, a thread rolling machine body is arranged on the frame, a clamping mechanism is arranged on the frame, the clamping mechanism includes a bidirectional screw and two sliding seats, the bidirectional screw is rotatably arranged on the frame, the two sliding seats are threadedly connected with the bidirectional screw, and a limiting groove is provided on the side wall of the sliding seat. When the equipment is used, the staff inserts the steel bar into the thread rolling machine body, and then starts the servo motor, which drives the bidirectional screw to rotate so that the two sliding seats move in a direction close to each other and press against the steel bar, so that the steel bar is clamped more firmly.

[0004] However, the above scheme still has some shortcomings. For example, the supporting effect of the above equipment on the steel bars is relatively insufficient. When the long steel bars are subjected to the steel bar rib stripping and rolling processing, the steel bars are affected by their own weight and elasticity, and the steel bars as a whole will bend to a certain extent, and will shake during the processing, and the ends of the steel bars will be offset, resulting in the disorder of the thread tooth type during the steel bar processing, affecting the connection and fixation of the steel bars. In view of this, the utility model proposes a steel bar rib stripping and rolling straight thread forming machine. Utility Model Content

[0005] The utility model aims to provide a steel bar rib stripping and straight thread rolling forming machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel bar stripping and rolling straight thread forming machine, comprising a cabinet, a slide is provided above the cabinet and near the right end, a machine head is provided on the left side of the slide, a fixing frame is provided on the top of the cabinet and near the left end, a fixing mechanism for positioning and clamping the steel bar is provided on the inner side of the fixing frame, the fixing mechanism comprises a fixing sleeve, an arc-shaped clamping plate and a movable sleeve, the arc-shaped clamping plate is arranged on the inner side of the fixing sleeve in an annular array, the movable sleeve is located on the outer side of the fixing sleeve, and is rotatably connected to the fixing frame;

[0007] A supporting mechanism for supporting the long steel bars is arranged on the left side of the cabinet, and the supporting mechanism comprises a supporting frame, a positioning slot and a sliding rod.

[0008] Preferably, a guide rail is installed on the top of the cabinet and near the right end, the slide is slidably connected to the guide rail, and a positioning frame is welded and fixed on the upper left of the guide rail and near the fixing frame.

[0009] Furthermore, the machine head is rotatably connected to the slide, a rib stripping knife and a thread rolling wheel are installed inside the machine head to perform rib stripping and thread rolling processing on the steel bars, and a motor with coaxial transmission with the machine head is installed on the slide.

[0010] Preferably, the fixing sleeve is welded and fixed to the inner side of the fixing frame and close to the top end, and movable grooves are provided on the fixing sleeve and on the outer sides of each arc-shaped clamping plate.

[0011] Preferably, a plurality of evenly distributed protrusions are provided on the inner side wall of the arc-shaped clamping plate, and a movable block slidably connected to the movable groove is provided on the outer side of the arc-shaped clamping plate, and the outer surface of the movable block is an arc-shaped surface.

[0012] Furthermore, reset blocks are provided on both left and right sides of the movable block and between the movable sleeve and the fixed sleeve, and a spring is installed on one side of the reset block close to the fixed sleeve.

[0013] Preferably, an extrusion block corresponding to each movable block is arranged on the inner wall of the movable sleeve, and the inner surface of the extrusion block matches the arc surface.

[0014] Furthermore, a worm wheel is installed on the outer wall of the movable sleeve, and a worm matched with the worm wheel is provided below the movable sleeve, and the worm is rotatably connected to the fixed frame.

[0015] Preferably, the positioning grooves are evenly arranged on the top of the support frame, the sliding rods are symmetrically welded and fixed on the right side of the support frame, a guide frame is welded and fixed on the inner side of the cabinet, the sliding rod is slidably connected to the guide frame, a rotatable threaded rod is provided on the support frame near the bottom end, and the threaded rod is threadedly connected to the guide frame.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] A steel bar rib stripping and rolling straight thread forming machine is provided with a fixing mechanism and a supporting mechanism. A fixing sleeve, an arc-shaped clamping plate and a movable sleeve cooperate with each other, so that the arc-shaped clamping plate and the protrusion can lock and fix the steel bar over a large area, effectively avoiding the end of the steel bar from shifting during processing, and ensuring the rib stripping and rolling effect of the steel bar.

[0018] At the same time, the distance between the support frame and the fixed frame can be adjusted through the threaded rod and the sliding rod. During the processing of long steel bars, the steel bars can be further supported and positioned through the positioning groove on the top of the support frame, thereby enhancing the stability of the steel bars during processing and preventing the steel bars from bending or shaking and affecting the rib stripping and rolling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the fixing mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the arc-shaped splint structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the support mechanism structure of the utility model.

[0024] In the figure: 1, cabinet; 11, guide rail; 12, positioning frame; 2, slide; 21, head; 22, motor; 3, fixed frame; 4, fixed sleeve; 41, movable groove; 5, arc-shaped clamping plate; 51, protrusion; 52, movable block; 53, arc-shaped surface; 54, reset block; 55, spring; 6, movable sleeve; 61, extrusion block; 62, worm gear; 63, worm; 7, support frame; 71, positioning groove; 72, slide rod; 73, guide frame; 74, threaded rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] During construction, a steel bar thread rolling machine is required to pre-treat the ends of the steel bars before use. A portion of the longitudinal ribs and transverse ribs at the ends of the steel bars to be connected are stripped off by cutting, and then threads are rolled out. Finally, the steel bars are connected together through connecting sleeves for use. The steel bar rib stripping and rolling straight thread forming machine of the utility model is mainly used for pre-treating the ends of the steel bars. The steel bars need to be fixed during use to prevent the steel bars from moving during rib stripping or rolling, and the thread path accuracy of the steel bar ends after processing is insufficient.

[0027] like Figure 1 - Figure 5As shown, the utility model provides a technical solution: a steel bar rib stripping and rolling straight thread forming machine, including a cabinet 1, a slide 2 is provided above the cabinet 1 and near the right end, a machine head 21 is provided on the left side of the slide 2, a fixed frame 3 is provided on the top of the cabinet 1 and near the left end, a fixing mechanism for positioning and clamping the steel bar is provided on the inner side of the fixed frame 3, the fixing mechanism includes a fixed sleeve 4, an arc-shaped clamping plate 5 and a movable sleeve 6, the arc-shaped clamping plate 5 is arranged on the inner side of the fixed sleeve 4 in a ring array, the movable sleeve 6 is located on the outer side of the fixed sleeve 4, and is rotatably connected to the fixed frame 3; a supporting mechanism for supporting the long steel bar is provided on the left side of the cabinet 1, and the supporting mechanism includes a supporting frame 7, a positioning groove 71 and a slide rod 72.

[0028] When the steel bars are subjected to rib stripping and straight thread rolling forming processing, the fixed sleeve 4, the arc-shaped clamping plate 5 and the movable sleeve 6 cooperate with each other to clamp and position the steel bars of different diameters, so that the steel bars have higher stability and ensure that the steel bars and the machine head 21 are on the same center line, which is convenient for processing the steel bars. When processing longer steel bars, the support frame 7, the positioning groove 71 and the slide rod 72 cooperate with each other to further support and position the steel bars, thereby improving the stability of the steel bars and facilitating the replacement of the steel bars during processing.

[0029] A guide rail 11 is installed on the top of the cabinet 1 and near the right end. The slide 2 is slidably connected to the guide rail 11. A positioning frame 12 is welded and fixed to the upper left of the guide rail 11 and near the fixing frame 3. The positioning frame 12 plays an auxiliary positioning role for the steel bars. The machine head 21 is rotatably connected to the slide 2. A rib stripping knife and a thread rolling wheel are installed inside the machine head 21 to perform rib stripping and straight thread rolling processing on the steel bars. A motor 22 that is coaxially driven with the machine head 21 is installed on the slide 2.

[0030] After the fixing mechanism clamps the steel bar in place, the slide 2 slides along the guide rail 11 and drives the machine head 21 and the motor 22 to approach the end of the steel bar. At the same time, the motor 22 drives the machine head 21 to rotate, so that the rib stripping knife and the thread rolling wheel inside the machine head 21 process the end of the steel bar. The rib stripping knife first removes the longitudinal ribs and transverse ribs at the end of the steel bar, and then the thread rolling wheel rolls a straight thread at the end of the steel bar. The fixing mechanism and the supporting mechanism ensure that the steel bar maintains the correct position during the processing. At the same time, the slide 2 provides stable support for the rib stripping knife and the thread rolling wheel in the machine head 21, thereby ensuring the processing accuracy and effect of the steel bar.

[0031] like Figure 2 - Figure 4As shown, the fixing sleeve 4 is welded and fixed to the inner side of the fixing frame 3 and near the top, and a movable groove 41 is provided on the fixing sleeve 4 and on the outer side of each arc-shaped clamping plate 5. A movable block 52 is provided on the outer side of the arc-shaped clamping plate 5 to be slidably connected to the movable groove 41, and the outer surface of the movable block 52 is an arc-shaped surface 53. An extrusion block 61 corresponding to each movable block 52 is provided on the inner wall of the movable sleeve 6, and the inner surface of the extrusion block 61 matches the arc-shaped surface 53.

[0032] When the movable sleeve 6 rotates, it can drive the extrusion block 61 to rotate, so that the extrusion block 61 squeezes the movable block 52 along the arc surface 53, so that the movable block 52 slides along the movable groove 41, and the three groups of arc clamps 5 move synchronously, and clamp the steel bar to position, and the three groups of arc clamps 5 cooperate with each other to have a large clamping area for the steel bar, which can effectively prevent the steel bar from moving. In addition, a number of evenly distributed protrusions 51 are arranged on the inner side wall of the arc clamp 5, and the protrusions 51 can limit the ribs on the surface of the steel bar on the inner side of the arc clamp 5, further improving the fixing effect of the steel bar.

[0033] A worm 63 is installed on the outer wall of the movable sleeve 6, and a worm 63 adapted to the worm wheel 62 is provided below the movable sleeve 6. The worm 63 is rotatably connected to the fixed frame 3. When the worm 63 is rotated, the worm 63 can be driven to rotate, so that the movable sleeve 6 rotates and drives the arc clamping plate 5 to clamp. During the clamping process, due to the self-locking property of the worm wheel 62 and the worm 63, the movable sleeve 6 can be prevented from moving in the reverse direction to cause the arc clamping plate 5 to loosen, so as to facilitate the continuous clamping of the steel bar.

[0034] Reset blocks 54 are provided on both sides of the movable block 52 and between the movable sleeve 6 and the fixed sleeve 4. A spring 55 is installed on the reset block 54 and on one side close to the fixed sleeve 4. When the steel bar needs to be taken out, the worm 63 is rotated in the opposite direction, so that the movable sleeve 6 drives the extrusion block 61 to gradually separate from the arc surface 53. Under the elastic action of the spring 55, the movable block 52 slides to the side away from the fixed sleeve 4, so that the arc clamping plate 5 is separated from the steel bar, which is convenient for taking out the steel bar.

[0035] like Figure 5 As shown, the positioning grooves 71 are evenly arranged on the top of the support frame 7, the sliding rods 72 are symmetrically welded and fixed on the right side of the support frame 7, a guide frame 73 is welded and fixed on the inner side of the cabinet 1, the sliding rod 72 is slidably connected to the guide frame 73, and a rotatable threaded rod 74 is provided on the support frame 7 near the bottom end, and the threaded rod 74 is threadedly connected to the guide frame 73.

[0036] When processing long steel bars, by rotating the threaded rod 74, the threaded rod 74 and the guide frame 73 move relative to each other, and the sliding rod 72 slides outward along the guide frame 73, the support frame 7 can be gradually moved away from the cabinet 1, and the support frame 7 can be adjusted to a larger distance from the fixed frame 3. The positioning groove 71 on the top of the support frame 7 can further support and position the steel bars to prevent the steel bars from bending or shaking and affecting the rib stripping and rolling effect.

[0037] Working principle: First, rotate the threaded rod 74 to make the threaded rod 74 and the guide frame 73 move relative to each other, and drive the slide rod 72 to slide on the guide frame 73, adjust the support frame 7 to a suitable spacing, then move the steel bar to be processed to the positioning groove 71, and make the end of the steel bar pass through the fixing sleeve 4 and gradually approach the machine head 21;

[0038] Furthermore, the worm 63 is rotated, and the transmission is transmitted through the worm 63 and the worm wheel 62, so that the movable sleeve 6 drives the extrusion block 61 to rotate, so that the extrusion block 61 squeezes the movable block 52 through the arc surface 53, and the movable block 52 slides on the movable groove 41, so that the three groups of arc-shaped clamping plates 5 gradually approach the steel bars, and cooperate with the protrusions 51 on the inner walls of the arc-shaped clamping plates 5 to clamp the steel bars in place, so as to prevent the steel bars from moving during the processing, thereby enhancing the rib stripping and rolling effect on the steel bars, and avoiding abnormalities in the thread tooth profile of the processed steel bars.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A steel bar stripping and rolling straight thread forming machine, comprising a cabinet, a slide is provided above the cabinet and near the right end, and a machine head is provided on the left side of the slide, characterized in that: A fixing frame is provided on the top of the cabinet and near the left end, and a fixing mechanism for positioning and clamping the steel bars is provided on the inner side of the fixing frame, and the fixing mechanism includes a fixing sleeve, an arc-shaped clamping plate and a movable sleeve, and the arc-shaped clamping plate is arranged on the inner side of the fixing sleeve in a circular array, and the movable sleeve is located on the outer side of the fixing sleeve and is rotatably connected to the fixing frame; A supporting mechanism for supporting the long steel bars is arranged on the left side of the cabinet, and the supporting mechanism comprises a supporting frame, a positioning slot and a sliding rod.

2. The steel bar rib stripping and rolling straight thread forming machine according to claim 1, characterized in that: A guide rail is installed on the top of the cabinet and near the right end, the slide is slidably connected to the guide rail, and a positioning frame is welded and fixed on the upper left of the guide rail and near the fixing frame.

3. The steel bar stripping and rolling straight thread forming machine according to claim 1, characterized in that: The machine head is rotatably connected to the slide, a rib stripping knife and a thread rolling wheel are installed inside the machine head to perform rib stripping and thread rolling processing on the steel bars, and a motor with a coaxial transmission with the machine head is installed on the slide.

4. The steel bar rib stripping and rolling straight thread forming machine according to claim 1, characterized in that: The fixing sleeve is welded and fixed on the inner side of the fixing frame and close to the top end. The fixing sleeve and the outer sides of each arc-shaped clamping plate are provided with movable grooves.

5. The steel bar rib stripping and rolling straight thread forming machine according to claim 1, characterized in that: A plurality of evenly distributed protrusions are arranged on the inner side wall of the arc-shaped clamping plate, and a movable block slidably connected with the movable groove is arranged on the outer side of the arc-shaped clamping plate, and the outer surface of the movable block is an arc-shaped surface.

6. The steel bar rib stripping and straight thread rolling forming machine according to claim 5, characterized in that: Reset blocks are arranged on both left and right sides of the movable block and between the movable sleeve and the fixed sleeve, and a spring is installed on one side of the reset block close to the fixed sleeve.

7. The steel bar rib stripping and rolling straight thread forming machine according to claim 1, characterized in that: An extrusion block corresponding to each movable block is arranged on the inner wall of the movable sleeve, and the inner surface of the extrusion block matches the arc surface.

8. The steel bar rib stripping and rolling straight thread forming machine according to claim 7, characterized in that: A worm wheel is installed on the outer wall of the movable sleeve, and a worm matched with the worm wheel is arranged below the movable sleeve, and the worm is rotatably connected with the fixing frame.

9. The steel bar rib stripping and rolling straight thread forming machine according to claim 1, characterized in that: The positioning grooves are evenly arranged on the top of the support frame, the sliding rods are symmetrically welded and fixed on the right side of the support frame, a guide frame is welded and fixed on the inner side of the cabinet, the sliding rod is slidably connected to the guide frame, a rotatable threaded rod is provided on the support frame near the bottom end, and the threaded rod is threadedly connected to the guide frame.

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