Quick die changing mechanism for nut forming die

Abstract

The utility model discloses a quick die changing mechanism of nut forming die, including bottom frame, the rear end fixedly connected with bottom plate of bottom frame, the top fixedly connected with backplate of bottom plate, the front end fixedly connected with top plate of backplate, the cylinder is passed in top plate, the movable end fixedly connected with mounting plate of cylinder, the bottom installation of mounting plate is equipped with the mould plate, the top both ends of mould plate are all fixedly connected with threaded rod, the outer wall of threaded rod is all vertically upwards and is passed in mounting plate both ends and extends, and the extension end of threaded rod is all screw -threaded and is equipped with the nut, and the front end fixedly connected with the axle rod of bottom plate, the model and the size of multiple sets of mould body are all different, when rotating to polygonal rotating plate, can change the mould body of processing area quickly, through setting the connecting structure between spacing rod and the jack, can play the fixed role to polygonal rotating plate, and the whole operation process not only saves staff a lot of time and energy, and also speeds up the production progress.

Description

Technical Field

[0001] This utility model relates to the field of nut forming mold technology, and in particular to a quick mold changing mechanism for nut forming molds. Background Technology

[0002] Nut forming dies are specialized tools used for the mass production of nuts. They mainly achieve the forming and processing of metal or plastic materials through the mold cavity structure. Metal nut forming dies are produced using cold heading technology and consist of a mold base, mold core, and cooling system. They are suitable for the mass production of fasteners such as bolts and nuts.

[0003] Existing nut forming molds are complex in structure, cumbersome in operation, and lack unloading function. The stamped nuts are prone to sticking to the punch. Based on these problems, Chinese patent CN213195295U discloses a new type of nut forming mold. By setting up an electric hydraulic cylinder and a base, the operator connects the electric hydraulic cylinder to an external power source using a power cord. The nut material after hot melting and cutting is placed into the hexagonal groove at the top of the base. The electric hydraulic cylinder is opened, and the operation of the electric hydraulic cylinder pushes the punch on the bottom output shaft to move down, stamping the nut material in the hexagonal groove. The nut material is extruded and formed by the hexagonal groove and the punch.

[0004] The forming base in this nut forming mold is fixed to the base plate by bolts. Therefore, during the replacement of the forming base, the staff needs to remove these bolts one by one and then reinstall new bolts to fix the new forming base. This process not only consumes a lot of time and effort, which significantly affects the work efficiency of the staff, but also affects the efficiency of the entire mold change process because the bolt removal and installation steps are cumbersome, thus prolonging the mold change time and hindering the production progress. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A quick mold changing mechanism for a nut forming mold includes a base frame, a base plate fixedly connected to the rear end of the base frame, a back plate fixedly connected to the top of the base plate, a top plate fixedly connected to the front end of the back plate, a cylinder passing through the top plate, a mounting plate fixedly connected to the movable end of the cylinder, a pressure plate mounted on the bottom of the mounting plate, threaded rods fixedly connected to both ends of the top of the pressure plate, the outer walls of the threaded rods vertically upward through both ends of the mounting plate and extending out, nuts threadedly connected to the extended ends of the threaded rods, a shaft fixedly connected to the front end of the base plate, a polygonal rotating plate rotatably connected to the outer wall of the shaft, multiple sets of grooves opened at the front end of the polygonal rotating plate, and a mold body passing through each side of the outer wall of the polygonal rotating plate.

[0008] As a further description of the above technical solution:

[0009] The mold body has insertion holes at both ends of its top. A column is fixedly connected to one end of the inner wall of the groove, and a perforated rod is fixedly connected to the top of the column.

[0010] As a further description of the above technical solution:

[0011] The bottom of the inner wall of the mold body is slidably connected to a push plate, and the bottom ends of the push plate are fixedly connected to a first slide rod, and the front end of the first slide rod is fixedly connected to a first U-shaped handle rod.

[0012] As a further description of the above technical solution:

[0013] Limiting plates are fixedly connected to the top of the outer walls on both sides of the column, and magnetic blocks penetrate one top end of the limiting plate and the other two bottom ends of the push plate.

[0014] As a further description of the above technical solution:

[0015] A platform is fixedly connected to the center of both sides of the inner wall of the bottom frame. Slip rings pass through both ends of the top of the bottom frame. A spring rod is fixedly connected to the center of the top of the platform. A sliding plate is slidably connected to the top of the outer wall of the spring rod. A return spring is sleeved on the bottom of the outer wall of the spring rod.

[0016] As a further description of the above technical solution:

[0017] The bottom of the skateboard is fixedly connected to two ends of a second slide bar, and the front end of the second slide bar is fixedly connected to a second U-shaped handle bar.

[0018] As a further description of the above technical solution:

[0019] Limiting rods are fixedly connected to both ends of the top of the slide plate. The outer walls of the limiting rods are slidably connected to the inner walls of the slip rings, and the top of the outer walls of the limiting rods are inserted into the inner walls of the insertion holes.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] (1) The models and sizes of the multiple mold bodies are different. When the polygonal plate is rotated, the mold body in the processing area can be quickly replaced. By setting the connection structure between the limit rod and the insertion hole, the polygonal plate can be fixed. The whole operation process not only saves a lot of time and energy for the staff, but also speeds up the production progress.

[0022] (2) By setting a push plate, the bottom opening of the mold body can be blocked. By setting a connection structure between the first U-shaped handle and the first slide bar, it is convenient for the user to push the push plate and push out the molded product directly. By pulling the second U-shaped handle down, the limit rod at the top of the slide plate can slide down. Then the top of the limit rod will disengage from the insertion hole, and the polygonal plate can be rotated. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the present invention;

[0024] Figure 2 This is a front view of the present invention;

[0025] Figure 3 This is a front sectional view of the present invention.

[0026] The correspondence between the labels and component names in the attached figures is as follows:

[0027] 1. Base frame; 2. Base plate; 3. Back plate; 4. Top plate; 5. Cylinder; 6. Mounting plate; 7. Pressing plate; 8. Threaded rod; 9. Nut; 10. Shaft; 11. Polygonal rotating plate; 12. Groove; 13. Mold body; 14. Insertion hole; 15. Column; 16. Through-hole rod; 17. Push plate; 18. First slide rod; 19. First U-shaped handle rod; 20. Limiting plate; 21. Magnetic block; 22. Platform; 23. Slip ring; 24. Spring rod; 25. Slide plate; 26. Return spring; 27. Second slide rod; 28. Second U-shaped handle rod; 29. ​​Limiting rod. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0031] Reference Figure 1-3 This utility model provides an embodiment of a quick mold changing mechanism for a nut forming mold, comprising a base frame 1, a base plate 2 fixedly connected to the rear end of the base frame 1, a back plate 3 fixedly connected to the top of the base plate 2, a top plate 4 fixedly connected to the front end of the back plate 3, a cylinder 5 passing through the top plate 4, the movable end of the cylinder 5 being vertically downward, a mounting plate 6 fixedly connected to the movable end of the cylinder 5, a pressure plate 7 mounted on the bottom of the mounting plate 6, threaded rods 8 fixedly connected to both ends of the top of the pressure plate 7, the outer walls of the threaded rods 8 vertically upward penetrating both ends of the mounting plate 6 and extending outward, and nuts 9 threadedly connected to the extended ends of the threaded rods 8. By setting the threaded rods 8 and nuts 9... The connection structure between them can fix the pressure plate 7 to the bottom of the mounting plate 6. The simple connection between the threaded rod 8, the mounting plate 6 and the nut 9 makes the disassembly and assembly of the pressure plate 7 more convenient and quick. The front end of the base plate 2 is fixedly connected to the shaft 10. The outer wall of the shaft 10 is rotatably connected to the polygonal rotating plate 11. The front end of the polygonal rotating plate 11 has multiple sets of grooves 12. Each side of the outer wall of the polygonal rotating plate 11 has a mold body 13 penetrating through it. It is worth noting that the multiple sets of mold bodies 13 are different in model and size. When the polygonal rotating plate 11 is rotated, the mold body 13 in the processing area can be replaced.

[0032] The mold body 13 has insertion holes 14 at both ends of its top. A column 15 is fixedly connected to one end of the inner wall of the groove 12. A perforated rod 16 is fixedly connected to the top of the column 15. A push plate 17 is slidably connected to the bottom of the inner wall of the mold body 13. By setting the push plate 17, the bottom opening of the mold body 13 can be sealed. A first slide rod 18 is fixedly connected to both ends of the bottom of the push plate 17. A first U-shaped handle rod 19 is fixedly connected to the front end of the first slide rod 18. By setting the connection structure between the first U-shaped handle rod 19 and the first slide rod 18, it is convenient for the user to push the push plate 17 and push out the molded product directly from the mold body 13. Limiting plates 20 are fixedly connected to the top of the outer walls on both sides of the column 15. By setting the limiting plates 20, the push plate 17 can be supported. A magnetic block 21 is passed through the top end of the limiting plate 20 and the other two ends of the bottom of the push plate 17. The adjacent two sets of magnetic blocks 21 attract each other and can fix the push plate 17.

[0033] A platform 22 is fixedly connected to the center of both sides of the inner wall of the base frame 1. Slip rings 23 pass through both ends of the top of the base frame 1. A spring rod 24 is fixedly connected to the center of the top of the platform 22. A slide plate 25 is slidably connected to the top of the outer wall of the spring rod 24. A return spring 26 is sleeved on the bottom of the outer wall of the spring rod 24. A second slide rod 27 is fixedly connected to both ends of the bottom of the slide plate 25. A second U-shaped handle rod 28 is fixedly connected to the front end of the second slide rod 27. A [missing information - likely a handle rod] is fixedly connected to both ends of the top of the slide plate 25. The outer wall of the limiting rod 29 is slidably connected to the inner wall of the slip ring 23. The top of the outer wall of the limiting rod 29 is inserted into the inner wall of the insertion hole 14. By setting the connection structure between the limiting rod 29 and the insertion hole 14, the polygonal rotating plate 11 can be fixed. Pulling the second U-shaped handle rod 28 downward will slide the limiting rod 29 at the top of the slide plate 25 downward. Then the top of the limiting rod 29 will disengage from the insertion hole 14, and the polygonal rotating plate 11 can be rotated.

[0034] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A quick mold changing mechanism for a nut forming mold, comprising a base frame (1), characterized in that: The bottom frame (1) is fixedly connected to the rear end of the bottom plate (2), the top of the bottom plate (2) is fixedly connected to the back plate (3), the front end of the back plate (3) is fixedly connected to the top plate (4), the top plate (4) is through the cylinder (5), the movable end of the cylinder (5) is fixedly connected to the mounting plate (6), the bottom of the mounting plate (6) is installed with the pressure template (7), the top two ends of the pressure template (7) are fixedly connected with threaded rods (8), the outer walls of the threaded rods (8) are vertically upward through the two ends of the mounting plate (6) and extend out, the extended ends of the threaded rods (8) are threadedly connected with nuts (9), the front end of the bottom plate (2) is fixedly connected to the shaft (10), the outer wall of the shaft (10) is rotatably connected to the polygonal rotating plate (11), the front end of the polygonal rotating plate (11) has multiple sets of grooves (12), and each side of the outer wall of the polygonal rotating plate (11) is through the mold body (13).

2. The quick mold changing mechanism for the nut forming die according to claim 1, characterized in that: The mold body (13) has insertion holes (14) at both ends of the top. A column (15) is fixedly connected to one end of the inner wall of the groove (12). A perforated rod (16) is fixedly connected to the top of the column (15).

3. The quick mold changing mechanism for the nut forming die according to claim 1, characterized in that: The bottom of the inner wall of the mold body (13) is slidably connected to a push plate (17), and the bottom ends of the push plate (17) are fixedly connected to a first slide rod (18), and the front end of the first slide rod (18) is fixedly connected to a first U-shaped handle rod (19).

4. The quick mold changing mechanism for the nut forming die according to claim 2, characterized in that: Limiting plates (20) are fixedly connected to the top of the outer walls on both sides of the column (15), and magnetic blocks (21) are passed through the top end of the limiting plate (20) and the bottom ends of the push plate (17).

5. The quick mold changing mechanism for the nut forming die according to claim 2, characterized in that: A platform (22) is fixedly connected to the center of both sides of the inner wall of the bottom frame (1). A slip ring (23) passes through both ends of the top of the bottom frame (1). A spring rod (24) is fixedly connected to the center of the top of the platform (22). A sliding plate (25) is slidably connected to the top of the outer wall of the spring rod (24). A return spring (26) is sleeved on the bottom of the outer wall of the spring rod (24).

6. The quick mold changing mechanism for the nut forming die according to claim 5, characterized in that: The bottom ends of the slide (25) are fixedly connected to a second slide rod (27), and the front end of the second slide rod (27) is fixedly connected to a second U-shaped handle rod (28).

7. The quick mold changing mechanism for the nut forming die according to claim 5, characterized in that: The top two ends of the slide plate (25) are fixedly connected to limit rods (29), the outer walls of the limit rods (29) are slidably connected to the inner wall of the slip ring (23), and the top of the outer wall of the limit rods (29) is inserted into the inner wall of the insertion hole (14).

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