Quick die replacement structure of light steel keel cold bending machine

Abstract

The utility model relates to the technical field of profile cold roll forming, in particular to a quick die replacement structure of a light steel keel cold bending machine. According to the technical scheme, the rapid dismounting device comprises a base, a telescopic air cylinder, a rapid dismounting mechanism and a mounting frame, a fixing frame is fixedly connected to the upper side of the base, the mounting frame is fixedly connected to one side of the fixing frame, the telescopic air cylinder is movably connected to the mounting frame, a telescopic rod is fixedly connected to the output end of the telescopic air cylinder, and a top plate is fixedly connected to the side, away from the telescopic air cylinder, of the telescopic rod; a cold bending frame is fixedly connected to the side, away from the fixing frame, of the base, a quick release mechanism in threaded transmission is arranged on the upper side of the cold bending frame, and auxiliary rollers are symmetrically and movably connected into the cold bending frame. An operator rotates the rotary knob to enable the bidirectional lead screw to rotate, then the adjusting block is driven to move along threads of the bidirectional lead screw, the positioning rod moves correspondingly due to movement of the adjusting block, locking of the mold is relieved, and once the mold is unlocked, the operator can easily slide the mold, take out an old mold or install a new mold.

Description

Technical Field

[0001] This utility model relates to the field of profile cold bending forming technology, specifically a quick mold changing structure for a light steel keel cold bending machine. Background Technology

[0002] The cold bending test is a test conducted by using a pressure bending method or folding bending. Under the condition of gradually reducing the radius R of the punch arc surface, the minimum bending radius Rmin of the outer layer material of the specimen is measured without cracking. The ratio of this minimum bending radius Rmin to the basic thickness T of the specimen, i.e., the minimum relative bending radius Rmin / T0, is used as an indicator of bending forming performance. The test is conducted by changing different dies.

[0003] However, existing cold bending machines require long-term mold replacement, which is time-consuming and causes production line stagnation, affecting overall production efficiency. Furthermore, improper operation during mold replacement may lead to safety accidents and increase the risk of worker injury. Therefore, we propose a quick mold replacement structure for a light steel keel cold bending machine to solve the existing problems. Utility Model Content

[0004] The purpose of this utility model is to provide a quick mold changing structure for a light steel keel cold bending machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-change mold structure for a light steel keel cold bending machine, comprising a base, a telescopic cylinder, a tie rod, light steel, a cold bending frame, a telescopic rod, a quick-release mechanism, and a mounting frame. A fixed frame is fixedly connected to the upper side of the base, and a mounting frame is fixedly connected to one side of the fixed frame. A telescopic cylinder is movably connected to the mounting frame, and a telescopic rod is fixedly connected to the output end of the telescopic cylinder. A top plate is fixedly connected to the side of the telescopic rod away from the telescopic cylinder. A cold bending frame is fixedly connected to the side of the base away from the fixed frame. A threaded quick-release mechanism is provided on the upper side of the cold bending frame, and auxiliary rollers are symmetrically and movably connected inside the cold bending frame.

[0006] Preferably, the quick-release mechanism includes a fixed block, a rotating frame, a rotating shaft, a bidirectional lead screw, a positioning rod, an adjusting block, a limiting rod, a limiting groove, a mounting base, a rotating rod, a rotating knob, and a mold. Fixed blocks are symmetrically fixedly connected to the cold bending frame, and rotating rods are movably connected to the fixed blocks. The fixed blocks are movably connected to the rotating frame through the rotating rods. Rotating shafts are embedded on both sides of the rotating frame, and bidirectional lead screws are provided on the rotating shafts. A mounting base is fixedly connected to the middle of the rotating frame, and the bidirectional lead screws are located on the mounting base. One end of the bidirectional lead screw passes through the rotating frame and is provided with a rotating knob.

[0007] Preferably, the bidirectional lead screw is threaded to adjusting blocks on both sides of the mounting base, and positioning rods are movably connected to both sides of the adjusting blocks. The positioning rods have limit grooves on their surfaces, and limit rods are symmetrically arranged on both sides of the rotating frame. The limit rods are located in the limit grooves, and a buckle is fixedly connected to the side of the positioning rod away from the adjusting block.

[0008] Preferably, the cold bending frame has an installation groove in the middle, a mold is slidably connected in the installation groove, and the fixing block and the two sides of the installation groove have grooves that cooperate with each other.

[0009] Preferably, the top plate surface is provided with a gasket made of rubber material, and a light steel is placed between the top plate and the mold, with the light steel cooperating with both the top plate and the mold.

[0010] Preferably, the auxiliary roller and the light steel are surface-fitted to each other, and a tie rod is movably connected to one side of the fixed frame, and the tie rod is electrically connected to the telescopic cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The operator rotates the knob, causing the double-acting lead screw to rotate. This, in turn, moves the adjusting block along the thread of the lead screw. The movement of the adjusting block causes the positioning rod to move accordingly. The movement of the positioning rod causes the position of the limiting rod in its limiting groove to change, releasing the mold lock. Once the mold is unlocked, the operator can easily slide the mold to remove the old mold or install a new mold. Due to the cooperative design of the groove and the buckle, the mold positioning is more stable. After installing the new mold, the operator rotates the knob again, causing the double-acting lead screw to rotate again. The adjusting block moves back to its original position, and the positioning rod relocks the mold, ensuring the stability of the mold during use. The entire operation process is fast and efficient, ensuring quick mold changes and greatly improving production efficiency.

[0013] 2. A pull rod is movably connected to one side of the fixed frame, and the other end of the pull rod is connected to a telescopic cylinder. The cylinder is responsible for generating power so that the pull rod can move up or down. When the cylinder is energized, the gas inside the cylinder expands or contracts, thereby driving the movement of the pull rod. When the pull rod moves upward, the top plate can be raised, thereby performing cold pressing on the light steel and shaping the light steel according to the mold. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the cold bending frame in this utility model;

[0016] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0017] Figure 4 This is a schematic diagram of the internal structure of the cold bending frame in this utility model.

[0018] In the diagram: 1. Base; 2. Telescopic cylinder; 3. Tie rod; 4. Light steel; 5. Cold bending frame; 6. Telescopic rod; 7. Quick release mechanism; 701. Fixing block; 702. Rotating frame; 703. Rotating shaft; 704. Two-way lead screw; 705. Positioning rod; 706. Adjusting block; 707. Limiting rod; 708. Limiting groove; 709. Mounting seat; 710. Rotating rod; 711. Rotating knob; 712. Mold; 713. Groove; 714. Buckle; 715. Mounting groove; 8. Mounting frame; 9. Auxiliary roller; 10. Fixing frame; 11. Top plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0020] like Figures 1-4 As shown, the present invention proposes a quick mold replacement structure for a light steel keel cold bending machine, including a base 1, a telescopic cylinder 2, a tie rod 3, a light steel frame 4, a cold bending frame 5, a telescopic rod 6, a quick release mechanism 7, and a mounting frame 8. A fixed frame 10 is fixedly connected to the upper side of the base 1, and a mounting frame 8 is fixedly connected to one side of the fixed frame 10. The telescopic cylinder 2 is movably connected to the mounting frame 8, and a telescopic rod 6 is fixedly connected to the output end of the telescopic cylinder 2. A top plate 11 is fixedly connected to the side of the telescopic rod 6 away from the telescopic cylinder 2. The cold bending frame 5 is fixedly connected to the side of the base 1 away from the fixed frame 10. A threaded quick release mechanism 7 is provided on the upper side of the cold bending frame 5, and auxiliary rollers 9 are symmetrically and movably connected inside the cold bending frame 5.

[0021] In an optional embodiment, the quick-release mechanism 7 includes a fixed block 701, a rotating frame 702, a rotating shaft 703, a bidirectional lead screw 704, a positioning rod 705, an adjusting block 706, a limiting rod 707, a limiting groove 708, a mounting base 709, a rotating rod 710, a rotating knob 711, and a mold 712. The fixed block 701 is symmetrically fixedly connected to the cold bending frame 5. The rotating rod 710 is movably connected to the fixed block 701. The rotating frame 702 is movably connected to the fixed block 701 through the rotating rod 710. The rotating shaft 703 is embedded on both sides of the rotating frame 702. The bidirectional lead screw 704 is provided on the rotating shaft 703. The mounting base 709 is fixedly connected to the middle of the rotating frame 702. The bidirectional lead screw 704 is located on the mounting base 709. One end of the bidirectional lead screw 704 passes through the rotating frame 702 and is provided with a rotating knob 711.

[0022] In an optional embodiment, the bidirectional lead screw 704 is threaded to both sides of the mounting base 709 with adjusting blocks 706, and positioning rods 705 are movably connected to both sides of the adjusting blocks 706. The surface of the positioning rods 705 is provided with limiting grooves 708, and limiting rods 707 are symmetrically arranged on both sides of the rotating frame 702. The limiting rods 707 are located in the limiting grooves 708, and a buckle 714 is fixedly connected to the side of the positioning rods 705 away from the adjusting blocks 706.

[0023] In an optional embodiment, the cold bending frame 5 has an installation groove 715 in the middle, and a mold 712 is slidably connected in the installation groove 715. The fixing block 701 and the two sides of the installation groove 715 have grooves 713, and the grooves 713 and the buckles 714 cooperate with each other.

[0024] The operator rotates the rotary knob 711, causing the bidirectional lead screw 704 to rotate. This, in turn, moves the adjusting block 706 along the thread of the bidirectional lead screw 704. The movement of the adjusting block 706 causes the positioning rod 705 to move accordingly. The movement of the positioning rod 705 causes the position of the limiting rod 707 in its limiting groove 708 to change position, releasing the lock on the mold 712. Once the mold 712 is unlocked, the operator can easily slide the mold 712 to remove the old mold or install a new mold. Due to the cooperative design of the groove 713 and the buckle 714, the positioning of the mold is more stable. After installing the new mold, the operator rotates the rotary knob 711 again, causing the bidirectional lead screw 704 to rotate again. The adjusting block 706 moves back to its original position, and the positioning rod 705 relocks the mold 712, ensuring the stability of the mold during use. The entire operation process is fast and efficient, ensuring quick mold replacement and greatly improving production efficiency.

[0025] In an optional embodiment, a gasket is provided on the surface of the top plate 11. The gasket is made of rubber material, and a light steel 4 is placed between the top plate 11 and the mold 712. The light steel 4 cooperates with both the top plate 11 and the mold 712.

[0026] In an optional embodiment, the auxiliary roller 9 and the light steel 4 are surface-fitted to each other, and a pull rod 3 is movably connected to one side of the fixing frame 10, and the pull rod 3 is electrically connected to the telescopic cylinder 2.

[0027] A pull rod 3 is movably connected to one side of the fixed frame 10. The other end of the pull rod 3 is connected to a telescopic cylinder 2. The cylinder 2 is responsible for generating power so that the pull rod 3 can move up or down. When the cylinder 2 is energized, the gas in the cylinder expands or contracts, thereby driving the movement of the pull rod 3. When the pull rod 3 moves upward, the top plate 11 can be raised, thereby cold pressing the light steel 4 so that the light steel 4 is formed according to the mold 712.

[0028] The working principle of this utility model is as follows: When using the device, the operator rotates the rotary knob 711, which causes the bidirectional lead screw 704 to rotate, thereby driving the adjusting block 706 to move along the thread of the bidirectional lead screw 704. The movement of the adjusting block 706 causes the positioning rod 705 to move accordingly. The movement of the positioning rod 705 causes the position of the limiting rod 707 in its limiting groove 708 to also change, releasing the lock on the mold 712. Once the mold 712 is unlocked, the operator can easily slide the mold 712 to remove the old mold or install a new mold. Due to the cooperative design of the groove 713 and the buckle 714, the positioning of the mold is more stable. After installing the new mold, the operator rotates the knob again. Knob 711 rotates again, the two-way lead screw 704 rotates again, the adjusting block 706 moves back to its original position, and the positioning rod 705 relocks the mold 712, ensuring the stability of the mold during use. The entire operation process is fast and efficient, ensuring quick mold replacement and greatly improving production efficiency. A pull rod 3 is movably connected to one side of the fixed frame 10, and the other end of the pull rod 3 is connected to the telescopic cylinder 2. The cylinder 2 is responsible for generating power so that the pull rod 3 can move up or down. When the cylinder 2 is energized, the gas in the cylinder expands or contracts, thereby driving the movement of the pull rod 3. When the pull rod 3 moves upward, the top plate 11 can be raised, thereby performing cold pressing on the light steel 4, so that the light steel 4 is formed according to the mold 712.

[0029] It should be understood that the specific embodiments described above are for illustrative purposes or to explain the principles of this utility model, and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A quick-change mold structure for a light steel keel cold bending machine, characterized in that: The system includes a base (1), a telescopic cylinder (2), a pull rod (3), a light steel frame (4), a cold bending frame (5), a telescopic rod (6), a quick-release mechanism (7), and a mounting frame (8). A fixed frame (10) is fixedly connected to the upper side of the base (1), and a mounting frame (8) is fixedly connected to one side of the fixed frame (10). A telescopic cylinder (2) is movably connected to the mounting frame (8). A telescopic rod (6) is fixedly connected to the output end of the telescopic cylinder (2). A top plate (11) is fixedly connected to the side of the telescopic rod (6) away from the telescopic cylinder (2). A cold bending frame (5) is fixedly connected to the side of the base (1) away from the fixed frame (10). A quick-release mechanism (7) with threaded drive is provided on the upper side of the cold bending frame (5), and auxiliary rollers (9) are symmetrically and movably connected inside the cold bending frame (5).

2. The quick mold changing structure of a light steel keel cold bending machine according to claim 1, characterized in that: The quick-release mechanism (7) includes a fixed block (701), a rotating frame (702), a rotating shaft (703), a two-way lead screw (704), a positioning rod (705), an adjusting block (706), a limiting rod (707), a limiting groove (708), a mounting base (709), a rotating rod (710), a rotating knob (711), and a mold (712). The cold bending frame (5) is symmetrically fixed with fixed blocks (701), and rotating rods (705, 706, 707, 708) are movably connected to the fixed blocks (701). 10) The fixed block (701) is movably connected to the rotating frame (702) via the rotating rod (710). The rotating frame (702) has a rotating shaft (703) embedded on both sides. A two-way screw (704) is provided on the rotating shaft (703). A mounting base (709) is fixedly connected to the middle of the rotating frame (702). The two-way screw (704) is located on the mounting base (709). One end of the two-way screw (704) passes through the rotating frame (702) and is provided with a rotating knob (711).

3. The quick mold changing structure for a light steel keel cold bending machine according to claim 2, characterized in that: The bidirectional lead screw (704) is threaded to the two sides of the mounting base (709) with adjusting blocks (706). The two sides of the adjusting block (706) are movably connected with positioning rods (705). The surface of the positioning rod (705) is provided with a limiting groove (708). The two sides of the rotating frame (702) are symmetrically provided with limiting rods (707). The limiting rods (707) are located in the limiting grooves (708). The side of the positioning rod (705) away from the adjusting block (706) is fixedly connected with a buckle (714).

4. The quick mold changing structure of a light steel keel cold bending machine according to claim 3, characterized in that: The cold bending frame (5) has an installation groove (715) in the middle, and a mold (712) is slidably connected in the installation groove (715). The fixing block (701) and the two sides of the installation groove (715) have grooves (713) that cooperate with each other.

5. The quick mold changing structure of a light steel keel cold bending machine according to claim 1, characterized in that: The top plate (11) is provided with a gasket made of rubber material, and a light steel (4) is placed between the top plate (11) and the mold (712). The light steel (4) cooperates with both the top plate (11) and the mold (712).

6. The quick mold changing structure of a light steel keel cold bending machine according to claim 1, characterized in that: The auxiliary roller (9) and the light steel (4) are surface-fitted to each other, and a pull rod (3) is movably connected to one side of the fixed frame (10), and the pull rod (3) is electrically connected to the telescopic cylinder (2).

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