Rolling forming die

Abstract

The utility model discloses an edge rolling forming die which comprises a die handle, an upper die base, an upper base plate and a cover plate are arranged at the bottom of the die handle, the cover plate is connected with a guide column, a bending male die and an upper push rod, the bottom of the upper push rod is connected with a positioning base, the bending male die is connected with a female die insert, a forming mandrel is arranged in the female die insert, and the forming mandrel is connected with the guide column. A buckle blank and a buckle part are arranged on the top of the female die insert. The stamping die structure solves the problem of difficult forming and discharging of edge rolling type parts, expands a forming method, is convenient to repair and maintain in the later period, is suitable for edge rolling type part forming products, and improves the quality of the parts by changing the forming mode and innovating the die structure.

Description

Technical Field

[0001] This patent relates to the field of stamping dies, specifically a rolling forming die. Background Art

[0002] As a common part, buckles are usually made of stainless steel 1Cr18Ni9 with a thickness of 0.3mm. The forming process is blanking and rolling. Rolling is a technical difficulty in making buckle parts. Due to the large springback of the material, the shape of the rolled parts cannot meet the use requirements. The previous process is to reshape the formed parts before use. Unloading after conventional rolling is also a major difficulty. Usually, the product and the forming core are removed for unloading, which is time-consuming and labor-intensive, and easily leads to product instability.

[0003] The Chinese patent with publication number CN218574763U discloses a stamping die for reverse flanging and curling, which includes a pressing plate, a slider guide block is provided at the bottom of the pressing plate, a forming slider is provided inside the slider guide block, a lower die floating plate is provided at the bottom of the slider guide block, a stopper is provided between the lower die floating plate and the pressing plate, a bottom block is provided at the bottom of the lower die floating plate, a driving block is provided on the left side of the pressing plate, a support block is provided on the left side of the driving block, a slider is provided on the right side of the driving block, and a side curling forming block is provided on the right side of the slider; its process fails to control the shape of the curling in the production of curling, and the unloading process is complicated and cumbersome. The present application effectively solves the problem of difficulty in forming and unloading curling parts, and the mold structure of the present application is convenient for mold repair and maintenance in the later stage, and is suitable for curling parts forming products. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a rolling forming die.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a rolling forming mold, including a mold handle, the bottom of the mold handle is provided with an upper mold seat, an upper pad and a cover plate, the cover plate is connected to a guide column, a bending punch and an upper push rod, the bottom of the upper push rod is connected to a positioning seat, the bending punch is connected to a die insert, the interior of the die insert is provided with a forming core shaft, and the top of the die insert is provided with a buckle blank and a buckle part.

[0007] Preferably, a fixing plate is provided on one side of the positioning seat, a discharge push tube and a spring B are provided inside the positioning seat, and a push block is provided at the bottom of the positioning seat and connected to a lower push rod through the push block.

[0008] Preferably, screws A are provided at both ends of the fixing plate.

[0009] Preferably, one end of the unloading push tube is connected to the swing block seat through a unloading push rod.

[0010] Preferably, a stop pin, a movable pin and a rocking block are provided on one side of the rocking block seat, a fixing pin is provided on the top of the rocking block seat, and the rocking block is connected to a spring C.

[0011] Preferably, screws C, screws D, positioning block pressure plates and springs D are provided on both sides of the die insert.

[0012] Preferably, rotating shafts and movable positioning blocks are provided at both ends of the buckle blank.

[0013] Preferably, the bottom of the concave die insert is connected to the concave die plate, the lower lining plate, the lower pad, the lower die seat and the ejector pad A in sequence.

[0014] Preferably, the ejector pad A and the ejector pad B are connected via screws B and springs A.

[0015] The beneficial effects of the utility model are: solving the problem of difficulty in forming and unloading rolled parts, expanding the stamping die structure of the forming method, and the die structure is convenient for mold repair and maintenance in the later stage, and is suitable for rolled parts forming products. The quality of parts is improved by changing the forming method and innovating the die structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the buckle blank of the utility model;

[0017] Figure 2 It is a top view of the buckle blank of the utility model;

[0018] Figure 3 It is a schematic diagram of a formed ring buckle of the utility model;

[0019] Figure 4 It is a front view of the mold of the utility model;

[0020] Figure 5 It is a top view of the mold of the utility model;

[0021] Figure 6 It is a schematic diagram of the local structure of the mold of the utility model;

[0022] Figure 7 It is a schematic diagram of the unloading structure of the utility model;

[0023] In the figure: 1-die handle; 2-upper die seat; 3-upper pad; 4-fixing plate; 5-cover plate; 6-guide column; 7-bending punch; 8-forming mandrel; 9-screw A; 10-die insert; 11-die plate; 12-lower lining plate; 13-lower pad; 14-lower die seat; 15-elevator pad A; 151-elevator pad B; 16-spring A; 17-screw B; 18-lower push rod; 19-push block ; 20-spring B; 21-unloading push rod; 22-stop pin; 23-swing block seat; 24-movable pin; 25-rocker; 26-spring C; 27-fixing pin; 28-positioning seat; 29-upper push rod; 30-rotating shaft; 31-movable positioning block; 32-screw C; 33-positioning block pressure plate; 34-screw D; 35-spring D; 36-ring buckle blank; 37-ring buckle parts; 38-unloading push tube. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific examples:

[0025] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0026] See also Figures 1 to 7 shown.

[0027] The utility model discloses a rolling forming die, comprising a die handle 1, an upper die seat 2, an upper pad 3 and a cover plate 5 are arranged at the bottom of the die handle 1, the cover plate 5 is connected to a guide column 6, a bending punch 7 and an upper push rod 29, the bottom of the upper push rod 29 is connected to a positioning seat 28, the bending punch 7 is connected to a die insert 10, a forming mandrel 8 is arranged inside the die insert 10, a buckle blank 36 and a buckle part 37 are arranged on the top of the die insert 10, positioning groove positioning is achieved through the upper end face of the die insert 10, and the forming mandrel 8 and the push block 19 are used to form the punch and then form the upper part of the circle to achieve the rolling process.

[0028] A fixing plate 4 is disposed on one side of the positioning seat 28 , a discharge push tube 38 and a spring B20 are disposed inside the positioning seat 28 , and a push block 19 is disposed at the bottom of the positioning seat 28 and is connected to the lower push rod 18 through the push block 19 .

[0029] Screws A9 are provided at both ends of the fixing plate 4 .

[0030] One end of the discharge push pipe 38 is connected to the swing block seat 23 through the discharge push rod 21 .

[0031] A stop pin 22, a movable pin 24 and a rocking block 25 are provided on one side of the rocking block seat 23, a fixing pin 27 is provided on the top of the rocking block seat 23, and the rocking block 25 is connected to a spring C26.

[0032] Screws C32, screws D34, positioning block pressure plates 33 and springs D35 are provided on both sides of the die insert 10.

[0033] A rotating shaft 30 and a movable positioning block 31 are provided at both ends of the buckle blank 36 .

[0034] The bottom of the die insert 10 is connected in sequence to the die plate 11, the lower lining plate 12, the lower pad 13, the lower die seat 14 and the ejector pad A15.

[0035] The ejector pad A15 and the ejector pad B151 are connected via screws B17 and springs A16.

[0036] Its working principle is:

[0037] 1. After the die is installed on the stamping machine and debugged, the buckle blank 36 is placed on the movable positioning block 31. The movable positioning block 31 is designed with steps to achieve lateral positioning.

[0038] Second, step on the pedal on the press, the upper mold moves downward, and under the guidance of the guide column 6 and the guide sleeve, the upper and lower molds are correctly closed and the parts are formed. The process can be divided into two stages: when the mold moves downward, the upper push rod 29 first contacts the positioning seat 28, pushing the positioning seat 28 mechanism downward, and at the same time, the bending punch 7 contacts the buckle blank 36. The mold continues to move downward, the spring D35 is compressed, driving the active positioning block 31 to rotate around the rotating shaft 30, so that the buckle blank 36 is separated from the active positioning block 31 and moves downward. At this time, the bending punch 7, the buckle blank 36, and the forming mandrel 8 simultaneously form the upper half of the buckle. The mold continues to move downward, and the buckle blank 36 enters the die insert and works together with the forming mandrel 8 and the bending punch 7 to complete the forming of the lower half of the buckle part 37. At the same time, the mold downward discharge push rod 21 acts on the rocker 25, so that the rocker rotates around the active pin 24 under the action of the spring C26 until the rocker is blocked by the stop pin 22. When the mold moves upward, the spring A16 in the lower mold ejector is reset, pushing the push block 19, the positioning seat 28, and the forming mandrel 8 upward, so that the buckle part 37 is demolded from the die insert, and the mold continues to move upward. The rocker 25 pushes the discharge push rod 21 and the discharge push tube 38 to compress the spring B20 under the action of the spring C26 and the stop pin 22, thereby removing the buckle part 37. When the mold moves upward until the rocker block no longer pushes the discharge push rod 21, the spring B20 is reset, and the production of one part is completed.

Claims

1. A rolling forming die, characterized in that: The invention comprises a die handle (1), the bottom of which is provided with an upper die seat (2), an upper pad (3) and a cover plate (5), the cover plate (5) being connected to a guide column (6), a bending punch (7) and an upper push rod (29); the bottom of the upper push rod (29) is connected to a positioning seat (28), the bending punch (7) is connected to a die insert (10), a forming core shaft (8) is arranged inside the die insert (10), and a buckle blank (36) and a buckle part (37) are arranged on the top of the die insert (10).

2. A rolling forming die as claimed in claim 1, characterized in that: A fixing plate (4) is arranged on one side of the positioning seat (28), a discharge push tube (38) and a spring B (20) are arranged inside the positioning seat (28), a push block (19) is arranged at the bottom of the positioning seat (28) and is connected to a lower push rod (18) via the push block (19).

3. A rolling forming die as claimed in claim 2, characterized in that: Screws A (9) are provided at both ends of the fixing plate (4).

4. A rolling forming die as claimed in claim 2, characterized in that: One end of the discharge push pipe (38) is connected to the swing block seat (23) via the discharge push rod (21).

5. A rolling forming die as claimed in claim 4, characterized in that: A stop pin (22), a movable pin (24) and a rocking block (25) are arranged on one side of the rocking block seat (23); a fixing pin (27) is arranged on the top of the rocking block seat (23); and the rocking block (25) is connected to a spring C (26).

6. A rolling forming die as claimed in claim 1, characterized in that: Screws C (32), screws D (34), positioning block pressure plates (33) and springs D (35) are arranged on both sides of the die insert (10).

7. A rolling forming die as claimed in claim 1, characterized in that: A rotating shaft (30) and a movable positioning block (31) are provided at both ends of the buckle blank (36).

8. A rolling forming die as claimed in claim 1, characterized in that: The bottom of the concave die insert (10) is sequentially connected to the concave die plate (11), the lower lining plate (12), the lower pad (13), the lower die seat (14) and the ejector pad A (15).

9. A rolling forming die as claimed in claim 8, characterized in that: The ejector pad A (15) and the ejector pad B (151) are connected via screws B (17) and springs A (16).

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