Reducing drawing mechanism for steel bar

Abstract

The utility model relates to the field of steel bar processing, and discloses a variable-diameter drawing mechanism for a steel bar, which comprises a workbench, a drawing mechanism is arranged at the top end of the outer wall of the left side of the workbench, a variable-diameter seat is fixedly connected to the surface of the workbench, and a placing seat is fixedly connected to the outer wall of the right side of the workbench. A feeding plate is fixedly connected to the outer wall of the containing base, a lifting mechanism is arranged at the bottom end of the outer wall of the workbench, a lifting plate B is fixedly connected to the top end of the outer wall of the left side of the U-shaped base, and a lifting plate A is fixedly connected to the top end of the outer wall of the right side of the U-shaped base. According to the automatic feeding and discharging device, the U-shaped base drives the material lifting plate A and the material lifting plate B to ascend synchronously, so that the material lifting plate B lifts the steel bars with the diameter changed on the surface of the containing base outwards, the material lifting plate A lifts the steel bars on the surface of the feeding plate to enter the containing base, automatic feeding and discharging are achieved, and workers do not need to make direct contact with the steel bars.

Description

Technical Field

[0001] The utility model relates to the field of steel bar processing, in particular to a diameter-changing drawing mechanism for steel bars. Background Art

[0002] Steel bar is a semi-finished raw material for various deep-processed steel products. It has a uniform cross-section and is usually round. It is mainly divided into three types: hot rolling, forging and cold drawing. The diameter of hot-rolled steel bar is 5-250mm, the diameter of cold-drawn steel bar is 3-100mm, and the dimensional accuracy is higher. The diameter of forged steel bar is larger and is usually used as axle blanks.

[0003] In practical applications, steel bars may need to have different diameters and shapes to meet specific usage requirements. Drawing and reducing can process steel bars into different diameters and shapes as needed. However, when reducing the diameter of steel bars, most of them are done by drawing machines.

[0004] However, when the steel rod is subjected to the diameter-changing drawing operation, it is necessary to manually place the steel rod inside the drawing machine, and after the drawing is completed, it is necessary to manually remove the material. However, during the drawing process, the surface of the steel rod may generate high temperature due to deformation, which is troublesome and inconvenient to manually load and unload the material. In addition, during the drawing process of the steel rod, it is necessary to manually push the steel rod into the diameter-changing seat for the drawing operation, which is troublesome and inconvenient to operate. Therefore, a diameter-changing drawing mechanism for steel rods is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a diameter-changing drawing mechanism for steel bars, aiming to improve the problem in the prior art that high temperature is generated due to deformation, which makes it troublesome and inconvenient to manually load and unload the materials.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a diameter-changing drawing mechanism for steel bars, comprising a workbench, a pulling mechanism is arranged at the top end of the left outer wall of the workbench, a diameter-changing seat is fixedly connected to the surface of the workbench, a placement seat is fixedly connected to the right outer wall of the workbench, a loading plate is fixedly connected to the outer wall of the placement seat, a lifting mechanism is arranged at the bottom end of the outer wall of the workbench, a pushing mechanism is arranged at the right inner wall of the workbench, the lifting mechanism comprises a telescopic operating arm, a U-shaped seat is hinged at the bottom end of the outer wall of the telescopic operating arm, a guide rod is fixedly connected to the bottom end of the outer wall of the placement seat, the outer wall of the U-shaped seat is elastically connected to the bottom end of the outer wall of the workbench by a limit spring, a lifting plate B is fixedly connected to the top end of the outer wall of the left side of the U-shaped seat, and a lifting plate A is fixedly connected to the top end of the outer wall of the right side of the U-shaped seat.

[0007] As a further description of the above technical solution:

[0008] The pushing mechanism includes a triangular block, the right outer wall of the triangular block is fixedly connected to an L rod, a supporting assembly is provided at the top of the outer wall of the L rod, the inner wall of the triangular block is elastically connected to the inner wall of the workbench, the inner wall of the workbench is elastically connected to a return spring via a wedge block, and the outer side wall of the U-shaped seat is fixedly connected to a connecting block.

[0009] As a further description of the above technical solution:

[0010] The material supporting assembly comprises a supporting plate, the inner wall of the supporting plate is rotatably connected with a threaded rod, and the surface of the threaded rod is threadedly connected with an adjusting plate.

[0011] As a further description of the above technical solution:

[0012] The telescopic operating arm is rotatably connected to the bottom end of the outer wall of the placement seat, one end of the limit spring is fixedly connected to the bottom end of the outer wall of the placement seat, and the other end of the limit spring is fixedly connected to the top end of the outer wall of the U-shaped seat.

[0013] As a further description of the above technical solution:

[0014] The U-shaped seat passes through and is slidably connected to the inner wall of the placement seat, the U-shaped seat passes through and is slidably connected to the inner wall of the loading plate, the U-shaped seat is slidably connected to the surface of the guide rod, the lifting plate B is slidably connected to the inner wall of the loading plate, and the lifting plate A is slidably connected to the inner wall of the placement seat.

[0015] As a further description of the above technical solution:

[0016] One end is fixedly connected to the left outer wall of the triangular block, the other end is fixedly connected to the inner wall of the placement seat, and the triangular block is slidably connected to the inner wall of the bottom end of the placement seat.

[0017] As a further description of the above technical solution:

[0018] The right side inclined surface of the connecting block contacts the inclined surface of the bottom end of the triangular block, one end of the wedge block is fixedly connected to the surface of the reset spring, and the other end of the wedge block is fixedly connected to the inner wall of the placement seat, the reset spring passes through and is slidably connected to the inner wall of the placement seat, and a slot is provided on the surface of the triangular block, and the bottom end of the outer wall of the reset spring is engaged with the inner wall of the slot.

[0019] As a further description of the above technical solution:

[0020] The support plate is fixedly connected to the top end of the outer wall on the right side of the L rod, and the adjustment plate is slidably connected to the inner wall of the support plate surface.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by providing a lifting assembly, when the steel rod is subjected to diameter-changing processing, the telescopic operating arm can be moved downward, so that the U-shaped seat drives the lifting plate A and the lifting plate B to rise synchronously, so that the lifting plate B lifts the steel rod whose diameter has been changed on the surface of the placement seat outward, and the lifting plate A lifts the steel rod on the surface of the loading plate and puts it into the placement seat, thereby realizing automatic loading and unloading, preventing the surface of the steel rod from generating high temperature when the steel rod changes its diameter, and the staff does not need to directly contact the steel rod.

[0023] 2. In the utility model, a pushing assembly is provided so that when the U-shaped seat moves upward, the inclined surface of the connecting block will contact the inclined surface of the triangular block, so that the position after the triangular block drives the support plate to move is clamped by the wedge block, and the clamping of the wedge block on the triangular block is released. At this time, the triangular block will be subjected to the elastic action of the limit spring to push the support plate placed on the surface of the placement seat forward to the diameter-changing seat, without the need to manually push the steel rod to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a diameter-changing drawing mechanism for a steel bar proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the left side cross-sectional structure of a placement seat of a diameter-changing drawing mechanism for a steel bar proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of a partial upward structural view of the bottom end of a placement seat of a diameter-changing drawing mechanism for a steel bar proposed by the utility model;

[0027] Figure 4 This is a partial cross-sectional structural schematic diagram of a placement seat of a diameter-changing drawing mechanism for a steel bar proposed by the utility model;

[0028] Figure 5 The utility model is a schematic diagram of the three-dimensional structure of a material supporting assembly of a diameter-changing drawing mechanism for a steel bar.

[0029] Legend:

[0030] 1. Workbench; 2. Drawing mechanism; 3. Variable diameter seat; 4. Loading plate; 5. Placing seat; 6. Pushing mechanism; 61. Connecting block; 62. Triangular block; 63. L-rod; 64. Support assembly; 641. Support plate; 642. Adjusting plate; 643. Threaded rod; 65. Connecting spring; 66. Wedge block; 67. Reset spring; 7. Lifting mechanism; 71. Telescopic operating arm; 72. U-shaped seat; 73. Guide rod; 74. Limiting spring; 75. Lifting plate A; 76. Lifting plate B. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment: a diameter-changing drawing mechanism for a steel bar, comprising a workbench 1, a drawing mechanism 2 is arranged on the top of the left outer wall of the workbench 1, the drawing mechanism 2 is a prior art, and the electric telescopic rod and the clamp tooling arranged on its surface cooperate to pull the steel bar entering the inside of the diameter-changing seat 3 outward to achieve the diameter-changing of the steel bar, the surface of the workbench 1 is fixedly connected with the diameter-changing seat 3, the diameter-changing seat 3 is a prior art, the steel bar enters its interior, and is stretched outward by the drawing mechanism 2, so as to achieve the diameter-changing operation of the steel bar, the right outer wall of the workbench 1 is fixedly connected with a placing seat 5, the outer wall of the placing seat 5 is fixedly connected with a loading plate 4, by providing the loading plate 4, the steel bar that needs to be reduced in diameter is placed, so as to facilitate the automatic loading of the steel bar, the bottom end of the outer wall of the workbench 1 is provided with a lifting mechanism 7, and the right inner wall of the workbench 1 is provided with a pushing mechanism 6.

[0033] Reference Figure 2-Figure 3 The lifting mechanism 7 includes a telescopic operating arm 71, which is rotatably connected to the bottom end of the outer wall of the placement seat 5. The bottom end of the telescopic operating arm 71 is telescopic and consists of two sets of rod bodies. One end hinged on the outside of the U-shaped seat 72 is a short rod body, and the upper end is a long rod body, so that when the telescopic operating arm 71 is pressed down, its short rod body will follow the movement of the U-shaped seat 72, thereby contracting or expanding inside the long rod body. A convex block is provided at the bottom end of the placement seat 5, and the telescopic operating arm 71 is rotatably connected between the two sets of convex blocks. The bottom end of the outer wall of the telescopic operating arm 71 is hinged with a U-shaped seat 72. When the telescopic operating arm 71 is pulled downward The U-shaped seat 72 is slidably connected to the surface of the guide rod 73, and the guide rod 73 is provided to guide the position of the U-shaped seat 72 after it rises, so as to avoid the guide rod 73 from shaking left and right during use.

[0034] Reference Figure 2-Figure 3The outer wall of the U-shaped seat 72 is elastically connected to the bottom end of the outer wall of the workbench 1 by a limit spring 74, one end of the limit spring 74 is fixedly connected to the bottom end of the outer wall of the placement seat 5, and the other end of the limit spring 74 is fixedly connected to the top end of the outer wall of the U-shaped seat 72. The function of the limit spring 74 is to automatically reset the position of the U-shaped seat 72 after it moves upward. The top end of the left outer wall of the U-shaped seat 72 is fixedly connected to a lifting plate B76, and the lifting plate B76 is slidably connected to the inner wall of the loading plate 4. The lifting plate B76 is provided to lift the steel rods on the surface of the loading plate 4 and transport them to the inside of the placement seat 5. The lifting plate A75 is slidably connected to the inner wall of the placement seat 5. The lifting plate A75 is provided to allow the steel rods on the surface of the placement seat 5 that have been reduced in diameter by the reducing seat 3 to be transported to the right side of the placement seat 5, thereby automatically unloading them. The top end of the right outer wall of the U-shaped seat 72 is fixedly connected to a lifting plate A75.

[0035] Reference Figure 2-Figure 3 and Figure 4 The pushing mechanism 6 includes a triangular block 62, and the right outer wall of the triangular block 62 is fixedly connected with an L rod 63. The movement of the triangular block 62 enables the L rod 63 to push the supporting assembly 64 to move outward. The top of the outer wall of the L rod 63 is provided with a supporting assembly 64. The inner wall of the triangular block 62 is elastically connected to the inner wall of the placement seat 5 through a connecting spring 65. One end of the connecting spring 65 is fixedly connected to the left outer wall of the triangular block 62, and the other end of the connecting spring 65 is fixedly connected to the inner wall of the placement seat 5. The function of the connecting spring 65 is to automatically reset the position of the triangular block 62 after being squeezed and moved by the connecting block 61. The triangular block 62 is slidably connected to the inner wall of the bottom end of the placement seat 5. The inner wall of the placement seat 5 is provided with a guide groove. The triangular block 62 can only move on the inner wall of the placement seat 5. The inner wall of the placement seat 5 is elastically connected with a wedge block 66 through a reset spring 67.

[0036] Reference Figure 3-Figure 4One end of the return spring 67 is fixedly connected to the surface of the wedge block 66, and the other end of the return spring 67 is fixedly connected to the inner wall of the placement seat 5. The function of the return spring 67 and the wedge block 66 is to automatically reset the position of the inclined surface of the wedge block 66 after it is squeezed and moved. The wedge block 66 penetrates and is slidably connected to the inner wall of the placement seat 5. The outer side wall of the U-shaped seat 72 is fixedly connected with the connecting block 61. When the U-shaped seat 72 is pressed down by the telescopic operating arm 71, it will drive the connecting block 61 to move up and down synchronously with it. The right side inclined surface of the connecting block 61 is connected to the inclined surface at the bottom end of the triangular block 62 The two are in contact with each other, so that the triangular block 62 is squeezed outward by the rise of the connecting block 61, thereby driving the supporting assembly 64 to move outward. A card slot is provided on the surface of the triangular block 62, and the bottom end of the outer wall of the wedge block 66 is engaged with the inner wall of the card slot. The engagement between the two fixes the position of the triangular block 62 after the supporting assembly 64 moves. At the same time, when the engagement of the triangular block 62 is released, the triangular block 62 will be subjected to the elastic action of the connecting spring 65, and the steel rod on the surface of the supporting assembly 64 will be transported into the interior of the reducing seat 3 to be pulled and reduced in diameter.

[0037] Reference Figure 4-Figure 5 The support assembly 64 includes a support plate 641, the inner wall of the support plate 641 is rotatably connected to a threaded rod 643, and the surface of the threaded rod 643 is threadedly connected to an adjustment plate 642. The threaded rod 643 is rotated to allow the adjustment plate 642 to move on the inner wall of the support plate 641, so as to be adjusted according to the length of the steel rod, thereby facilitating the transportation of steel rods of different lengths. The support plate 641 is fixedly connected to the top of the outer wall on the right side of the L rod 63. When the L rod 63 moves with the triangular block 62, it will push the support plate 641 to move synchronously with it, and the adjustment plate 642 is slidably connected to the inner wall of the surface of the support plate 641.

[0038] Working principle: First, the threaded rod 643 can be rotated according to the length of the steel rod to drive the adjustment plate 642 to move on the inner wall of the support plate 641, so as to facilitate the transportation of the steel rod. At this time, the steel rod that needs to be changed in diameter can be placed on the loading plate 4. At this time, the telescopic operating arm 71 can be pulled downward to allow the U-shaped seat 72 hinged at its bottom end to move upward on the surface of the guide rod 73, and drive the lifting plate B76 and the lifting plate A75 to move upward synchronously on the inner wall of the loading plate 4 and the placement seat 5. At this time, the steel rods accumulated on the surface of the lifting plate B76 will be lifted up by the lifting plate B76 and fall into the inclined surface at the top left side of the placement seat 5. At this time, the steel rods will be The left outer wall of the lifting plate A75 is blocked when it rises until the telescopic operating arm 71 is released. The U-shaped seat 72 will be elastically acted upon by the limit spring 74 to restore it to its original position, thereby driving the lifting plate B76 and the lifting plate A75 to restore to their original positions. At this time, the steel bar supported by the left side of the lifting plate A75 will no longer be blocked by the lifting plate A75, and will fall into the placement groove on its surface along the inclined surface on the left side of the placement seat 5. At the same time, the processed steel bar in the placement groove on the surface of the placement seat 5 will be lifted up by the rising of the lifting plate A75, and automatically lifted outward along the inclined surface on the right side, thereby realizing automatic loading and unloading of the steel bar.

[0039] At the same time, during the rising process of the U-shaped seat 72, the connecting block 61 will be driven to move synchronously with it, so that its inclined surface will contact the inclined surface of the triangular block 62, and squeeze the triangular block 62 to move outward, and the connecting spring 65 will be elastically compressed until the triangular block 62 moves to the wedge block 66, and the card groove on its surface will squeeze the inclined surface of the wedge block 66 to push it outward, until the triangular block 62 moves to the wedge block 66, the wedge block 66 will be elastically acted upon by the return spring 67, and it will be restored to its initial position, so as to be locked with the card groove at the current position of the triangular block 62. Then, the position of the triangular block 62 after movement is fixed until the processed steel rod falls into the placement groove of the placement seat 5, and the wedge block 66 is pulled outward to make its bottom end disengage from the clamping connection with the triangular block 62. At this time, the triangular block 62 will be elastically acted upon by the connecting spring 65, and the L rod 63 and the supporting assembly 64 connected to the rear end will be reset, thereby pushing the steel rod in the placement groove of the placement seat 5 forward and transporting it to enter the interior of the diameter-changing seat 3. At this time, the steel rod can be pulled outward by the driving of the pulling mechanism 2 to perform a diameter-changing operation on it.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A diameter-reducing drawing mechanism for a steel bar, comprising a workbench (1), characterized in that: A pulling mechanism (2) is provided at the top of the left outer wall of the workbench (1); a reducing seat (3) is fixedly connected to the surface of the workbench (1); a placing seat (5) is fixedly connected to the right outer wall of the workbench (1); a loading plate (4) is fixedly connected to the outer wall of the placing seat (5); a lifting mechanism (7) is provided at the bottom end of the outer wall of the workbench (1); a pushing mechanism (6) is provided on the right inner wall of the workbench (1); and the lifting mechanism (7) includes a telescopic operating arm (71); The bottom end of the outer wall of the telescopic operating arm (71) is hinged with a U-shaped seat (72), the bottom end of the outer wall of the placement seat (5) is fixedly connected to a guide rod (73), the outer wall of the U-shaped seat (72) is elastically connected to the bottom end of the outer wall of the workbench (1) through a limit spring (74), the top end of the left outer wall of the U-shaped seat (72) is fixedly connected to a lifting plate B (76), and the top end of the right outer wall of the U-shaped seat (72) is fixedly connected to a lifting plate A (75).

2. A diameter-changing drawing mechanism for a steel bar according to claim 1, characterized in that: The pushing mechanism (6) comprises a triangular block (62), the right outer wall of the triangular block (62) is fixedly connected to an L-rod (63), the top end of the outer wall of the L-rod (63) is provided with a supporting assembly (64), the inner wall of the triangular block (62) is elastically connected to the inner wall of the placement seat (5) via a connecting spring (65), the inner wall of the placement seat (5) is elastically connected to a wedge block (66) via a return spring (67), and the outer side wall of the U-shaped seat (72) is fixedly connected to a connecting block (61).

3. A diameter-changing drawing mechanism for a steel bar according to claim 2, characterized in that: The material supporting assembly (64) comprises a supporting plate (641), the inner wall of the supporting plate (641) is rotatably connected to a threaded rod (643), and the surface of the threaded rod (643) is threadedly connected to an adjustment plate (642).

4. A diameter-changing drawing mechanism for a steel bar according to claim 1, characterized in that: The telescopic operating arm (71) is rotatably connected to the bottom end of the outer wall of the placement seat (5), one end of the limit spring (74) is fixedly connected to the bottom end of the outer wall of the placement seat (5), and the other end of the limit spring (74) is fixedly connected to the top end of the outer wall of the U-shaped seat (72).

5. A diameter-changing drawing mechanism for a steel bar according to claim 1, characterized in that: The U-shaped seat (72) passes through and is slidably connected to the inner wall of the placement seat (5), the U-shaped seat (72) passes through and is slidably connected to the inner wall of the loading plate (4), the U-shaped seat (72) is slidably connected to the surface of the guide rod (73), the lifting plate B (76) is slidably connected to the inner wall of the loading plate (4), and the lifting plate A (75) is slidably connected to the inner wall of the placement seat (5).

6. A diameter-changing drawing mechanism for a steel bar according to claim 2, characterized in that: One end of the connecting spring (65) is fixedly connected to the left outer wall of the triangular block (62), the other end of the connecting spring (65) is fixedly connected to the inner wall of the placement seat (5), and the triangular block (62) is slidably connected to the inner wall of the bottom end of the placement seat (5).

7. A diameter-changing drawing mechanism for a steel bar according to claim 2, characterized in that: The right side inclined surface of the connecting block (61) contacts the inclined surface of the bottom end of the triangular block (62); one end of the return spring (67) is fixedly connected to the surface of the wedge block (66); the other end of the return spring (67) is fixedly connected to the inner wall of the placement seat (5); the wedge block (66) penetrates and is slidably connected to the inner wall of the placement seat (5); a slot is provided on the surface of the triangular block (62); the bottom end of the outer wall of the wedge block (66) is snap-fitted to the inner wall of the slot.

8. A diameter-changing drawing mechanism for a steel bar according to claim 3, characterized in that: The support plate (641) is fixedly connected to the top end of the right outer wall of the L rod (63), and the adjustment plate (642) is slidably connected to the inner wall of the surface of the support plate (641).

Images