An automatic demolding structure for processing press-fit nut molds

Abstract

This utility model discloses an automatic demolding structure for processing press-fit nut molds, relating to the field of automatic demolding technology. Addressing the problem in existing technologies where the press-fit nut blank is tightly embedded in the forming groove, leading to demolding difficulties, the following solution is proposed: A base is included, with fixed plates fixed at both ends of the top of the base. A bidirectional lead screw is rotatably connected to one end of the outer wall of one of the two fixed plates on opposite sides. A sliding rod is fixed to the other end of the outer wall of one of the two fixed plates on opposite sides, and a limiting rod is fixed to the middle of the outer wall of one of the two fixed plates on opposite sides. In this utility model, after the press-fit nut blank is formed between the forming blocks of the two mold bases, the second fixed block slides along the sliding rod. The rotating bidirectional lead screw drives the two first fixed blocks away from each other, thereby moving the two mold bases apart. Combined with the obstruction of the middle press-fit nut blank by the left and right limiting rods, the press-fit nut blank falls from the discharge port and is demolded.

Description

Technical Field

[0001] This utility model relates to the field of automatic demolding technology, and in particular to an automatic demolding structure for processing rivet nut molds. Background Technology

[0002] A press-fit nut, also known as a rivet nut or self-locking nut, is a type of nut used on thin sheets or sheet metal. It is round in shape with knurled teeth and a guide groove at one end. Its working principle involves pressing the knurled teeth into a pre-drilled hole in the sheet metal. Generally, the diameter of the pre-drilled hole is slightly smaller than the knurled teeth of the press-fit nut. Pressure forces the knurled teeth into the sheet, causing plastic deformation around the pre-drilled hole. The deformed material is then forced into the guide groove, thus creating a locking effect.

[0003] Currently, when using molds for press-fit nuts, after the press-fit nut blank is formed in the bottom mold, it is difficult to demold because the press-fit nut blank is tightly embedded in the forming groove, which is not conducive to improving work efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic demolding structure for processing press-fit nut molds, which overcomes the deficiencies of existing technologies and effectively solves the problem that press-fit nut blanks are tightly embedded in the forming groove, leading to demolding difficulties.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic demolding structure for processing rivet nut molds includes a base, with fixed plates fixed at both ends of the top of the base. A bidirectional lead screw is rotatably connected to one end of the outer wall of the two fixed plates on opposite sides. A sliding rod is fixed to the other end of the outer wall of the two fixed plates on opposite sides. A limit rod is fixed to the middle of the outer wall of the two fixed plates on opposite sides. A mold base is connected to both ends of the sliding rod and the bidirectional lead screw. The mold base includes a support block, a first fixed block and a second fixed block respectively fixed to the outer walls of both ends of the support block, and a forming block connected to the top of the support block.

[0007] After the rivet nut blank is formed between the forming blocks of the two mold bases, the servo motor drives the bidirectional lead screw to rotate, which in turn moves the second fixing block along the slide rod. The rotating bidirectional lead screw causes the two first fixing blocks to move away from each other, thereby moving the two mold bases away from each other. With the help of the two left and right limit rods blocking the middle rivet nut blank, the rivet nut blank falls from the blanking port and is demolded.

[0008] Preferably, mounting plates are fixed to the outer walls of both ends of the base, and the mounting plates are bolted to the worktable of the external stamping mechanism.

[0009] The mold is mounted on top of the workbench via a mounting plate.

[0010] Preferably, a servo motor is mounted on one side of the outer wall of one of the fixing plates, and the output shaft of the servo motor is connected and fixed to one end of a bidirectional lead screw.

[0011] A servo motor drives a bidirectional lead screw to rotate, which in turn moves the two mold bases.

[0012] Preferably, the top of the base has a material discharge port, and the inner diameter of the material discharge port is adapted to the inner diameter of the two molded blocks after splicing.

[0013] When the two mold bases move away from each other, the rivet nut blank falls downward through the blanking port.

[0014] Preferably, a slot adapted to the limiting rod is provided on one side of the outer wall of the molding block, and connecting rods are fixed at both ends of the bottom of the molding block, and insertion holes adapted to the connecting rods are provided at both ends of the top of the support block.

[0015] When the two forming blocks move away from each other along with the support block, the two limit rods on the left and right will block the press-fit nut blank to prevent it from moving with the forming block and the support block.

[0016] Preferably, the first fixing block is screwed to the bidirectional lead screw, and the second fixing block is slidably connected to the slide rod.

[0017] The second fixed block slides along the slide bar, and the rotating bidirectional screw drives the two first fixed blocks to move away from or closer to each other.

[0018] The beneficial effects of this utility model are as follows:

[0019] After the press-fit nut blank is formed between the forming blocks of the two mold bases, it slides along the slide bar with the help of the second fixing block. The rotating bidirectional screw drives the two first fixing blocks to move away from each other, thereby moving the two mold bases away from each other. With the help of the two left and right limit rods blocking the middle press-fit nut blank, the press-fit nut blank falls from the blanking port and is demolded. This effectively solves the problem in the prior art where the press-fit nut blank is tightly embedded in the forming groove, resulting in difficulty in demolding. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an automatic demolding structure for processing a press-fit nut mold proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the overall structure of an automatic demolding structure for processing a rivet nut mold proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of a mold base structure for an automatic demolding structure used in the processing of a press-fit nut mold, as proposed in this utility model.

[0023] In the diagram: 1. Base; 2. Mounting plate; 3. Fixing plate; 4. Two-way lead screw; 5. Servo motor; 6. Slide rod; 7. Limiting rod; 8. Mold base; 9. Material discharge port; 10. Support block; 11. First fixing block; 12. Second fixing block; 13. Forming block; 14. Connecting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example:

[0026] Reference Figure 1-3 An automatic demolding structure for processing a rivet nut mold includes a base 1. Both ends of the top of the base 1 are fixed with fixing plates 3. One end of the outer wall of the two fixing plates 3 on opposite sides is rotatably connected to a bidirectional lead screw 4. The other end of the outer wall of the two fixing plates 3 on opposite sides is fixed with a sliding rod 6. The middle of the outer wall of the two fixing plates 3 on opposite sides is fixed with a limit rod 7. Both ends of the sliding rod 6 and the rod wall of the bidirectional lead screw 4 are connected with a mold base 8. The mold base 8 includes a support block 10, a first fixing block 11 and a second fixing block 12 respectively fixed to the outer walls of both ends of the support block 10, and a forming block 13 connected to the top of the support block 10.

[0027] Mounting plates 2 are fixed to the outer walls of both ends of the base 1. The mounting plates 2 are bolted to the worktable of the external stamping mechanism. The mold is mounted on the top of the base 1 through the mounting plates 2. A servo motor 5 is mounted on one side of the outer wall of one of the fixing plates 3. The output shaft of the servo motor 5 is connected and fixed to one end of the bidirectional lead screw 4. The servo motor 5 drives the bidirectional lead screw 4 to rotate, which drives the two mold bases 8 to move. The top of the base 1 is provided with a material drop port 9. The inner diameter of the material drop port 9 is adapted to the inner diameter of the two forming blocks 13 after splicing. When the two mold bases 8 move away from each other, the rivet nut blank falls down through the material drop port 9.

[0028] A slot adapted to the limiting rod 7 is provided on one side of the outer wall of the forming block 13. Connecting rods 14 are fixed at both ends of the bottom of the forming block 13. Insertion holes adapted to the connecting rods 14 are provided at both ends of the top of the support block 10. When the two forming blocks 13 move away from each other along with the support block 10, the left and right limiting rods 7 block the rivet nut blank to prevent the rivet nut blank from moving with the forming block 13 and the support block 10. The first fixing block 11 is screwed to the bidirectional screw 4, and the second fixing block 12 is slidably connected to the slide rod 6. The second fixing block 12 slides along the slide rod 6, and the rotating bidirectional screw 4 drives the two first fixing blocks 11 to move away from or closer to each other.

[0029] Working principle:

[0030] During operation, after the rivet nut blank is formed between the forming blocks 13 of the two mold bases 8, the servo motor 5 drives the bidirectional lead screw 4 to rotate, which in turn moves the second fixing block 12 along the slide rod 6. The rotating bidirectional lead screw 4 drives the two first fixing blocks 11 to move away from each other, thereby moving the two mold bases 8 away from each other. With the help of the two left and right limit rods 7 blocking the middle rivet nut blank, the rivet nut blank falls out of the discharge port 9 and is demolded.

[0031] 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. An automatic demolding structure for processing press-fit nut molds, comprising a base (1), characterized in that, The base (1) has a fixing plate (3) fixed at both ends of the top. The two fixing plates (3) are rotatably connected to a two-way screw rod (4) at one end of the opposite outer wall. The two fixing plates (3) are fixed to a sliding rod (6) at the other end of the opposite outer wall. The two fixing plates (3) are fixed to a limit rod (7) at the middle of the opposite outer wall. The sliding rod (6) and the two-way screw rod (4) are connected to a mold base (8). The mold base (8) includes a support block (10), a first fixing block (11) and a second fixing block (12) fixed to the outer walls of both ends of the support block (10), and a forming block (13) connected to the top of the support block (10).

2. The automatic demolding structure for processing press-fit nut molds according to claim 1, characterized in that, The base (1) has mounting plates (2) fixed to the outer walls at both ends, and the mounting plates (2) are bolted to the worktable of the external stamping mechanism.

3. The automatic demolding structure for processing press-fit nut molds according to claim 1, characterized in that, One of the fixed plates (3) has a servo motor (5) installed on one side of its outer wall, and the output shaft of the servo motor (5) is connected and fixed to one end of the bidirectional lead screw (4).

4. The automatic demolding structure for processing press-fit nut molds according to claim 1, characterized in that, The base (1) has a material discharge port (9) at the top, and the inner diameter of the material discharge port (9) is compatible with the inner diameter of the two molded blocks (13) after splicing.

5. The automatic demolding structure for processing press-fit nut molds according to claim 1, characterized in that, The outer wall of one side of the molding block (13) is provided with a slot that matches the limiting rod (7), and the bottom two ends of the molding block (13) are fixed with connecting rods (14), and the top two ends of the support block (10) are provided with insertion holes that match the connecting rods (14).

6. The automatic demolding structure for processing press-fit nut molds according to claim 1, characterized in that, The first fixing block (11) is screwed to the bidirectional lead screw (4), and the second fixing block (12) is slidably connected to the slide rod (6).

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