A quick replacement device for a cz type steel forming die

By using a locking mechanism that engages the plug rod with the plug hole and a hydraulic cylinder pressing mechanism, the problem of inconvenient mold replacement in CZ-shaped steel production is solved, enabling rapid mold replacement and stable fixation, thereby improving production efficiency and processing accuracy.

CN224444311UActive Publication Date: 2026-07-03HEFEI LONGXING METAL MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI LONGXING METAL MATERIAL CO LTD
Filing Date
2025-02-19
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In the current CZ-shaped steel production process, mold replacement is inconvenient, resulting in low production efficiency, especially when changing molds of different specifications or types, which takes a long time.

Method used

By using a plug-in rod and plug-in hole to engage and locking with a fixing pin, combined with a hydraulic cylinder and pressing mechanism, the mold can be quickly changed and stably fixed.

Benefits of technology

It simplifies the mold changing process, improves production efficiency and equipment utilization, enables rapid response to market changes, meets customized needs, and ensures processing accuracy and production safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of C-shaped steel production, in particular to a rapid replacement device for a C-shaped steel forming die. Aiming at the problems of cumbersome and complex die replacement and long time consumption in the existing C-shaped steel production process, the following scheme is proposed. It includes a base, on the top of the base, there is a placement rack fixed, on both sides, there are "C"-shaped mounting racks fixed, inside the mounting racks, hydraulic cylinders are fixed, between the two hydraulic cylinders on both sides, there is a bending mechanism arranged, under the top hydraulic cylinder, there is a pressing mechanism arranged. Through the cooperation of the insertion rod and the insertion hole and the locking of the fixing pin, the rapid replacement of the die is realized. In the utility model, the die replacement process can be simplified, the replacement time is reduced, and the production efficiency is improved; it can meet the production requirements of C-shaped steel with different specifications and types; it can quickly respond to market changes and meet the customized requirements; the stable fixation of the steel plate is realized, and the processing accuracy and production safety are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of C-Z steel production, in particular to a rapid replacement device for a C-Z steel forming die. Background Art

[0002] In the technical field of C-Z steel production, as a key component for forming, the design and use of the die have crucial impacts on the product quality and production efficiency. The traditional C-Z steel forming die device usually uses fasteners such as bolts and nuts to fix the die on the frame to achieve the forming processing of steel. Although this fixing method ensures the stability and processing accuracy of the die to a certain extent, there are many inconveniences in die replacement.

[0003] In the existing C-Z steel production process, when it is necessary to replace the die with different specifications or types, workers usually need to first remove the original fasteners, such as bolts and nuts, then take down the old die from the frame, install the new die on the frame, and re-tighten all the fasteners. This process is not only cumbersome and complex, but also time-consuming, seriously affecting the production efficiency. Therefore, a rapid replacement device for a C-Z steel forming die is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages in the existing C-Z steel production process that when it is necessary to replace the die with different specifications or types, workers usually need to first remove the original fasteners, such as bolts and nuts, then take down the old die from the frame, install the new die on the frame, and re-tighten all the fasteners. This process is not only cumbersome and complex, but also time-consuming, seriously affecting the production efficiency, and to propose a rapid replacement device for a C-Z steel forming die.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A rapid replacement device for a C-Z steel forming die includes a base. A placing rack is fixedly connected to the top of the base. The same mounting rack is fixedly connected to both sides of the base. The mounting rack is in a "U" shape. Hydraulic cylinders are fixedly arranged on the inner walls of both sides and the top inner wall of the mounting rack. A bending mechanism for bending a steel plate is arranged between the two hydraulic cylinders on the inner walls of both sides of the mounting rack. A pressing mechanism for fixing the steel plate is arranged at the bottom of the hydraulic cylinder on the top inner wall of the mounting rack.

[0007] In a possible design, the bending mechanism includes two side plates and a connecting plate. Both side plates are fixedly connected to one end of the piston rod of the corresponding hydraulic cylinder. Accommodating grooves are formed on the sides of both side plates close to each other. Sliding grooves are formed on the inner walls of both sides of the accommodating groove.

[0008] In one possible design, the connecting plate is fixedly connected to the top of the base. One side of the connecting plate is integrally formed with a rotating seat one, and the other side of the connecting plate is provided with a rotating seat two. The inner circumferential walls of the rotating seat one and the rotating seat two are rotatably connected to bending plates via rotating shafts. Both sides of the bending plates are fixedly connected to extension shafts, and the extension shafts are located in corresponding sliding grooves.

[0009] In one possible design, multiple plug-in rods are fixedly connected to the side of the rotating seat 2 near the connecting plate. The side of the connecting plate near the rotating seat 2 has multiple plug-in holes 1. The plug-in rods are slidably connected in the corresponding plug-in holes 1. A through fixing hole 1 is opened at the top of the plug-in rod. A through fixing hole 2 is opened on the top inner wall and the bottom inner wall of the plug-in hole 1. The fixing hole 1 and the fixing hole 2 are adapted to each other. The same fixing pin is slidably connected in the fixing hole 1 and the two corresponding fixing holes 2.

[0010] In one possible design, the pressing mechanism includes a mounting plate fixedly connected to the bottom of the piston rod of a hydraulic cylinder located on the inner wall of the top of the mounting frame. Pressing plates are fixedly connected to both sides of the mounting plate, and a common support block is fixedly connected between one side of the pressing plate and the bottom of the mounting plate.

[0011] In one possible design, one of the pressing plates has a plurality of insertion holes on one side of its bottom, the insertion holes being adapted to the insertion rod.

[0012] Working principle: In this application, when people need to use this device to produce C-shaped steel, firstly, insert the plug rod on one side of the rotating seat into the plug hole one, and then let the fixing pin pass through the fixing hole two and the fixing hole one in sequence to complete the fixation. Then, place the steel plate to be bent on the placement frame, and push one of them into the bending mechanism. Then, start the hydraulic cylinder located on the inner wall of the top of the mounting frame. Its piston rod will push the mounting plate and then drive the pressing plates on both sides to fix the steel plate to be bent on the connecting plate by pressing down. Then, start the hydraulic cylinder located on the inner walls of both sides of the mounting frame. Its piston rod will push the side plates closer to each other, and move in the slide groove through the extension shaft to make the bending plate flip. Then, cooperate with the pressing plate to bend the steel plate into C-shaped steel. When Z-shaped steel needs to be produced, simply remove the fixing pin and install it into the plug hole two opened on one side of the pressing plate, and insert the fixing pin to fix it. Then, adjust the hydraulic cylinder to make the bending plate connected to the rotating seat two rotate downward at an appropriate angle. Z-shaped steel can be produced through the above process.

[0013] Beneficial effects: The quick-change device for CZ-shaped steel forming mold described in this utility model can achieve quick mold replacement by using a plug-in rod and a plug-in hole for cooperation and locking with a fixing pin. Compared with the traditional bolt and nut fastening method, this device greatly simplifies the mold replacement operation process, reduces the replacement time, and thus significantly improves production efficiency. Workers no longer need to spend a lot of time disassembling and installing fasteners. They only need to simply insert the plug-in rod into the plug-in hole and lock it with the fixing pin. The operation is simple and quick.

[0014] In this utility model, the quick-change device for CZ-shaped steel forming mold can adapt to the production needs of different specifications and types of CZ-shaped steel by adjusting the angle and position of the bending plate and changing the combination of different specifications of plug rods and plug holes. This flexibility enables the device to perform well in a variety of production scenarios, improving equipment utilization and production efficiency. At the same time, due to the quick and convenient mold change, the device can also quickly respond to market changes and meet customers' customized needs.

[0015] In this utility model, the quick-change device for CZ-shaped steel forming mold, through the cooperation of hydraulic cylinder and pressing mechanism, can achieve the effect of stably fixing steel plate. During the forming process of steel plate, it is necessary to stably fix it to ensure processing accuracy. This utility model uses hydraulic cylinder to push pressing mechanism to press down steel plate and uses support block to enhance the stability of pressing plate, thereby achieving stable fixing of steel plate. This design not only improves the processing accuracy of product, but also ensures production safety.

[0016] In this invention, by using a plug-in rod and plug-in hole to engage and lock with a fixing pin, quick mold replacement can be achieved. Compared to traditional bolt and nut fastening methods, this device greatly simplifies the mold replacement process, reduces the time required for replacement, and thus significantly improves production efficiency. Workers no longer need to spend a lot of time disassembling and installing fasteners; they only need to simply insert the plug-in rod into the plug-in hole and lock it with the fixing pin. The operation is simple and quick. By adjusting the angle and position of the bending plate and changing different specifications of plug-in rods and plug-in hole combinations, this device can adapt to the production needs of different specifications and types of CZ-shaped steel. This flexibility... The device's versatility allows it to perform exceptionally well in various production scenarios, improving equipment utilization and production efficiency. Furthermore, the quick and convenient mold replacement enables rapid response to market changes and meets customized customer needs. The combination of a hydraulic cylinder and a pressing mechanism achieves stable fixing of steel plates. During the forming process, stable fixing of the steel plate is crucial to ensure processing accuracy. This invention utilizes a hydraulic cylinder to push the pressing mechanism down on the steel plate, and supports the pressing plate to enhance stability, thus achieving stable fixing of the steel plate. This design not only improves product processing accuracy but also ensures production safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the quick-change device for CZ-shaped steel forming mold proposed in this utility model during the production of C-shaped steel.

[0018] Figure 2 This is a schematic diagram of the overall structure of the quick-change device for CZ-shaped steel forming mold proposed in this utility model during the production of Z-shaped steel.

[0019] Figure 3 An exploded view of the overall structure of a quick-change device for CZ-shaped steel forming mold proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the side plate in a quick-change device for CZ-shaped steel forming mold proposed in this utility model.

[0021] Figure 5 This is a cross-sectional view of the internal structure of the bending mechanism in a quick-change device for CZ-shaped steel forming molds proposed in this utility model.

[0022] Figure 6 This is a schematic diagram of the overall structure of the pressing mechanism in a quick-change device for CZ-shaped steel forming molds proposed in this utility model.

[0023] In the figure: 1, base; 2, mounting bracket; 3, hydraulic cylinder; 4, bending mechanism; 5, pressing mechanism; 6, placement rack; 7, side plate; 8, receiving groove; 9, sliding groove; 10, connecting plate; 11, bending plate; 12, extension shaft; 13, first rotating seat; 14, second rotating seat; 15, inserting rod; 16, first fixing hole; 17, first inserting hole; 18, second fixing hole; 19, fixing pin; 20, mounting plate; 21, pressing plate; 22, support block; 23, second inserting hole. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Embodiment 1: Refer to Figures 1-6 , a replacement device, including a base 1, and a placement rack 6 for placing steel plates is fixedly connected to the top of the base 1. On both sides of the base 1, a mounting bracket 2 in a "C" shape is also fixedly connected. The design of this mounting bracket 2 facilitates the installation of various functional components inside.

[0026] Hydraulic cylinders 3 are fixedly arranged on both inner walls and the top inner wall of the mounting bracket 2. These hydraulic cylinders 3 provide power for the device. Particularly, a bending mechanism 4 for bending steel plates is arranged between the hydraulic cylinders 3 on both inner walls of the mounting bracket 2. The bending mechanism 4 includes two side plates 7 and a connecting plate 10. The two side plates 7 are respectively fixedly connected to one end of the piston rod of the corresponding hydraulic cylinder 3. Receiving grooves 8 are opened on the sides of the side plates 7 close to each other, and sliding grooves 9 are opened on both inner walls of the receiving grooves 8. These designs are for the installation of subsequent components.

[0027] In addition, the connecting plate 10 is fixedly connected to the top of the base 1, and a first rotating seat 13 and a detachable second rotating seat 14 are respectively arranged on both sides of it. Both the first rotating seat 13 and the second rotating seat 14 are rotatably connected to a bending plate 11 through a rotating shaft. Extension shafts 12 are also fixedly connected to both sides of the bending plate 11. The extension shafts 12 are located in the corresponding sliding grooves 9, so as to ensure that the bending plate 11 can rotate smoothly and precisely.

[0028] In order to fix the second rotating seat 14, a plurality of inserting rods 15 are fixedly connected to the side close to the connecting plate 10, and a plurality of first inserting holes 17 adapted to the inserting rods 15 are opened on the connecting plate 10. A through first fixing hole 16 is opened at the top of the inserting rod 15, and through second fixing holes 18 are opened on both the top inner wall and the bottom inner wall of the first inserting hole 17. By inserting a fixing pin 19 into the first fixing hole 16 and the corresponding two second fixing holes 18, the stable connection of the second rotating seat 14 can be achieved.

[0029] At the bottom of the hydraulic cylinder 3 located on the top inner wall of the mounting bracket 2, a pressing mechanism 5 for fixing the steel plate is provided. The pressing mechanism 5 includes a mounting plate 20, which is fixedly connected to the bottom of the piston rod of the hydraulic cylinder 3. Pressing plates 21 are fixedly connected to both sides of the mounting plate 20. A support block 22 is also fixedly connected between one side of the pressing plate 21 and the bottom of the mounting plate 20 to enhance the stability of the pressing plate 21.

[0030] This application can be used in the field of CZ-shaped steel production, or in other fields applicable to this application.

[0031] Example 2: Reference Figures 1-6 Based on Embodiment 1, an improvement is made to a quick-change device for CZ-shaped steel forming molds, which is applied to the production of CZ-shaped steel. In this embodiment, the pressing plate 21 is designed with additional functions. One side of the bottom of the pressing plate 21 has multiple insertion holes 23, which are adapted to the insertion rods 15 on the rotating seat 14. When the user needs to produce Z-shaped steel, they can first remove the fixing pins 19 that fix the rotating seat 14, then adjust the rotating seat 14 and its bending plate 11 to the appropriate position, insert the insertion rods 15 into the insertion holes 23 on the pressing plate 21, and finally fix it again using the fixing pins 19.

[0032] With the above design, users can achieve the production conversion from C-shaped steel to Z-shaped steel simply by adjusting the position of the rotating seat 14 without replacing the entire bending mechanism 4.

[0033] However, as is well known to those skilled in the art, the working principle and wiring method of the hydraulic cylinder 3 are commonplace and are all conventional means or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick change device for a forming die for a CZ type steel, comprising a base (1), characterized in that, A placement rack (6) is fixedly connected to the top of the base (1). Both sides of the base (1) are fixedly connected to the same mounting rack (2). The mounting rack (2) is in a "U" shape. Hydraulic cylinders (3) are fixedly arranged on both the inner walls of the two sides and the inner wall of the top of the mounting rack (2). A bending mechanism (4) for bending a steel plate is arranged between the two hydraulic cylinders (3) on the inner walls of the two sides of the mounting rack (2). A pressing mechanism (5) for fixing the steel plate is arranged at the bottom of the hydraulic cylinder (3) on the inner wall of the top of the mounting rack (2).

2. The quick exchange device of a CZ steel forming mold according to claim 1, characterized in that, The bending mechanism (4) includes two side plates (7) and a connecting plate (10). Both of the two side plates (7) are fixedly connected to one end of the piston rod of the corresponding hydraulic cylinder (3). Accommodating grooves (8) are formed on the sides of the two side plates (7) close to each other. Sliding grooves (9) are formed on both inner walls of the accommodating groove (8).

3. The quick change device of a forming mold for a CZ type steel according to claim 2, wherein The connecting plate (10) is fixedly connected to the top of the base (1). A first rotating seat (13) is integrally formed on one side of the connecting plate (10). A second rotating seat (14) is arranged on the other side of the connecting plate (10). Bending plates (11) are rotatably connected to the circumferential inner walls of the first rotating seat (13) and the second rotating seat (14) through rotating shafts. Extension shafts (12) are fixedly connected to both sides of the bending plate (11). The extension shafts (12) are located in the corresponding sliding grooves (9).

4. The quick exchange device of a CZ steel forming mold according to claim 3, characterized in that, A plurality of inserting rods (15) are fixedly connected to the side of the second rotating seat (14) close to the connecting plate (10). A plurality of first inserting holes (17) are formed on the side of the connecting plate (10) close to the second rotating seat (14). The inserting rods (15) are slidably connected in the corresponding first inserting holes (17). A through fixing hole one (16) is formed at the top of the inserting rod (15). Through fixing holes two (18) are formed on both the inner wall of the top and the inner wall of the bottom of the first inserting hole (17). The fixing hole one (16) is adapted to the fixing hole two (18). The same fixing pin (19) is slidably connected in the fixing hole one (16) and the corresponding two fixing holes two (18).

5. The quick change device of a forming mold for a CZ type steel according to claim 4, wherein The pressing mechanism (5) includes a mounting plate (20). The mounting plate (20) is fixedly connected to the bottom of the piston rod of the hydraulic cylinder (3) on the inner wall of the top of the mounting rack (2). Pressing plates (21) are fixedly connected to both sides of the mounting plate (20). A same supporting block (22) is fixedly connected between one side of the pressing plate (21) and the bottom of the mounting plate (20).

6. The quick exchange device of a CZ steel forming mold according to claim 5, wherein, A plurality of second inserting holes (23) are formed at the bottom of one side of the pressing plate (21). The second inserting holes (23) are adapted to the inserting rods (15).