Sheet metal stamping die provided with ejection device
By designing a hydraulic ejection device and an adjustable spring structure for sheet metal stamping dies, the problems of inconvenient ejection and unadjustable pressure in narrow dies were solved, achieving efficient automatic ejection and pressure adaptability, and avoiding dents.
Patent Information
- Application Number
- CN202210575746.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-25
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2042-05-25
AI Technical Summary
Existing ejection devices are inconvenient to use in small molds, and traditional devices cannot adjust the pressure, resulting in low efficiency in removing stamped parts and potential pitting problems.
A sheet metal stamping die was designed, comprising a shell, an ejector block, a connecting bend, and a hydraulic ejection structure. Automatic ejection and pressure regulation are achieved through the hydraulic ejector block and an adjustable spring structure.
The system efficiently and automatically ejects stamped parts from small molds, improving mold ejection efficiency, adapting to the stamping needs of different materials, and avoiding dent problems.
Smart Images

Figure CN115229074B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of stamping die technology, and in particular to a sheet metal stamping die equipped with an ejector device. Background Technology
[0002] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube, and profiles, causing plastic deformation or separation to obtain workpieces of the desired shape and size. Stamping and forging both belong to plastic processing and are collectively known as forging and pressing. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips. Of the world's steel, 60-70% is sheet metal, most of which is made into finished products through stamping. Automobile bodies, chassis, fuel tanks, radiator fins, boiler drums, container shells, and silicon steel sheets for motor and electrical appliance cores are all processed by stamping. There are also a large number of stamped parts in products such as instruments, household appliances, bicycles, office machinery, and household utensils. During the stamping process, due to the tight seal, material may get stuck in the die, thus requiring the design of an ejector device. However, most existing ejector devices are installed at the bottom of the stamping die, which requires a lot of space in actual use. For some small dies with limited space, traditional ejector devices may not have sufficient force, and the size of the device may also lead to problems with pressure adjustment. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a sheet metal stamping die with an ejector device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a sheet metal stamping die with an ejector device, comprising: a housing, an ejector block, and a connecting bend;
[0005] A top block is fixedly installed inside the housing, and a fixing sleeve is fixedly installed on one side of the housing;
[0006] The top block and the fixed sleeve are connected by a connecting bend. A movable groove is fixedly installed on the inner side of the top block. An ejector block is movably installed on the inner side of the movable groove. A connecting block is fixedly installed on the bottom of the ejector block. A movable chamber is fixedly installed on the bottom of the movable groove. A secondary piston is movably installed on the inner side of the movable chamber. The top of the movable chamber is connected to the connecting block by a top rod.
[0007] As a further description of the above technical solution:
[0008] An outer connecting plate is fixedly installed on the inner side of the fixed sleeve. An outer sleeve is installed on one side of the outer connecting plate and is connected to the housing. A connecting rod is movably installed on the inner side of the outer sleeve, and a spring is sleeved on the outer side of the connecting rod.
[0009] As a further description of the above technical solutions:
[0010] Both ends of the baffle extend from the fixed sleeve, a threaded sleeve is arranged outside the fixed sleeve, and an adjusting bolt block is arranged on one side of the fixed sleeve by screwing.
[0011] As a further description of the above technical solutions:
[0012] One end of the fixed sleeve is provided with a mounting rod, and the mounting rod is connected with the outer connecting plate, and one end of the mounting rod is fixedly provided with a sealing piston.
[0013] As a further description of the above technical solutions:
[0014] The sealing piston and the outer side of the auxiliary piston are provided with a sealing rubber ring, and the sealing piston and the auxiliary piston are filled with a mixed liquid.
[0015] As a further description of the above technical solutions:
[0016] The bottom of the shell is fixedly provided with a mounting seat, and the bottom of the mounting seat is fixedly provided with a mounting plate.
[0017] As a further description of the above technical solutions:
[0018] Both ends of the connecting elbow are provided with sealing rings, one side of the sealing ring is fixedly provided with a connecting head, and one side of the connecting elbow is fixedly provided with a pressure relief port. Beneficial effects
[0019] The present application provides a sheet metal stamping die provided with an ejection device. It has the following beneficial effects:
[0020] The ejection device can be used in a narrow die, effectively solving the problem that the ejection device cannot be used in a narrow die, and the stamping part needs to be manually removed, which is more troublesome and has low efficiency. Compared with the traditional die that cannot automatically eject, the die ejection efficiency is higher. At the same time, compared with the traditional device, the device is relatively simple, and the pressure of the device can be adjusted to adapt to stamping parts of different materials. At the same time, the hydraulic ejection mode is adopted, compared with the traditional pure spring type ejection structure, the ejection force is relatively moderate, and the problem of pits will not occur. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is an internal structure diagram of a sheet metal stamping die provided with an ejection device according to the present application;
[0022] Figure 2 It is a whole structure diagram in the present application;
[0023] Figure 3 It is a regulator structure diagram in the present application;
[0024] Figure 4 It is the schematic diagram of the ejection block structure in the application;
[0025] Figure 5 It is the schematic diagram of the connecting elbow disassembling structure in the application.
[0026] Legend:
[0027] 1, shell; 2, fixed sleeve; 3, outer sleeve; 4, mounting seat; 5, top block; 6, connecting elbow; 7, mounting plate; 8, threaded sleeve; 9, spring; 10, connecting rod; 11, baffle; 12, adjusting bolt block; 13, outer connecting plate; 14, mounting rod; 15, sealing piston; 16, movable groove; 17, ejection block; 18, connecting block; 19, top rod; 20, movable bin; 21, auxiliary piston; 22, connecting head; 23, sealing ring; 24, pressure relief port. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all embodiments of the application.
[0029] Reference Figures 1-5 A sheet metal stamping die provided with an ejection device, comprising: a shell 1, a top block 5 and a connecting elbow 6;
[0030] The top block 5 is fixedly installed in the shell 1, and the top block 5 has a plurality of structures inside, so that the stamping part in the device can be ejected. The shell 1 is fixedly installed on one side with a fixed sleeve 2, which can fix the structure inside the device and improve the stability of the device installation.
[0031] The top block 5 is connected with the fixed sleeve 2 through the connecting elbow 6. The inner side of the top block 5 is fixedly installed with a movable groove 16, which can limit the internal ejection block 17 and avoid falling off during the movement. The inner side of the movable groove 16 is movably installed with the ejection block 17. The bottom of the ejection block 17 is fixedly installed with a connecting block 18, which can connect and fix the ejection block 17 and adjust the position of the ejection block 17. The stamping part is ejected through the ejection block 17. The bottom of the movable groove 16 is fixedly installed with a movable bin 20, which can seal the oil. The inner side of the movable bin 20 is movably installed with an auxiliary piston 21, which can seal the device and prevent the liquid from running out of the device. The top of the movable bin 20 is connected with the connecting block 18 through the top rod 19.
[0032] The inner side of the fixed sleeve 2 is fixedly provided with an outer connecting plate 13, which can be used for fixedly mounting an outer sleeve 3. One side of the outer connecting plate 13 is provided with the outer sleeve 3, which can conveniently connect the movable connecting rod 10 to increase the stability of the device connection. The outer sleeve 3 is connected with the shell 1, and the inner side of the outer sleeve 3 movably mounts the connecting rod 10. The outer side of the connecting rod 10 is sleeved with a spring 9, which can control and adjust the position of the baffle 11 on one side.
[0033] The two ends of the baffle 11 extend from the fixed sleeve 2, and the outer side of the fixed sleeve 2 is provided with a threaded sleeve 8. The threaded sleeve 8 can conveniently adjust the bolt block, and the position of the baffle 11 can be adjusted by adjusting the bolt block, so as to control the position of the baffle 11 and adjust the overall pressure of the spring 9. One side of the outer part of the fixed sleeve 2 is provided with an adjusting bolt block 12 through a threaded connection.
[0034] One end of the fixed sleeve 2 is provided with a mounting rod 14, which can connect the sealing piston 15 on one end of the device. The mounting rod 14 is connected with the outer connecting plate 13, which can push the sealing piston 15 to move. One end of the mounting rod 14 is fixedly provided with the sealing piston 15, which can seal the liquid inside to avoid leakage of the liquid, thereby affecting the transmission of the device force.
[0035] The outer side of the sealing piston 15 and the auxiliary piston 21 is provided with a sealing rubber ring, which increases the sealing property of the device and avoids the problem of pressure leakage of the device. The sealing piston 15 and the auxiliary piston 21 are filled with a mixed liquid, which is hydraulic oil, which can increase the overall viscosity of the device and increase the pressure;
[0036] The bottom of the shell 1 is fixedly provided with a mounting seat 4, which fixedly mounts the device. The bottom of the mounting seat 4 is fixedly provided with a mounting plate 7, which increases the convenience of mounting the device,
[0037] The two ends of the connecting elbow 6 are provided with sealing rings 23, which are made of metal to increase the strength of the device. One side of the sealing ring 23 is fixedly provided with a connecting head 22, which facilitates the installation of the device and improves the convenience of installing the device. One side of the connecting elbow 6 is fixedly provided with a pressure relief port 24, which can replace the hydraulic oil inside.
[0038] Working principle: The sheet metal stamping die of the internal combustion engine flywheel rotation detection ejection device:
[0039] The device is installed in the mold through the mounting plate 7 at the bottom, after installation, the position of the baffle 11 can be controlled by rotating the bolt block, when the baffle 11 is close to the shell 1, the spring 9 can be compressed, the compression of the spring 9 can press the outer connecting plate 13, the outer connecting plate 13 can drive the installation rod 14 to extrude, the extrusion force of the installation rod 14 can be transmitted to the movable bin 20 through the connecting elbow 6, and then to the connecting block 18 through the auxiliary piston 21 inside the movable bin 20, at the same time, the connecting block 18 can lift the ejection block 17 inside the movable groove 16, and the ejection block 17 can eject the stamping part;
[0040] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0041] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A sheet metal press die provided with an ejection device, characterized in that, The utility model relates to a shell (1), top block (5) and connecting elbow (6) are provided, The shell (1) is fixedly installed with top block (5), one side of shell (1) is fixedly installed with fixed sleeve (2), The top block (5) is connected with fixed sleeve (2) through connecting elbow (6), the inboard of top block (5) is fixedly installed with movable slot (16), the inboard of movable slot (16) is movably installed with ejection block (17), the bottom of ejection block (17) is fixedly installed with connecting block (18), the bottom of movable slot (16) is fixedly installed with movable bin (20), the inboard of movable bin (20) is movably installed with auxiliary piston (21), the top of movable bin (20) is connected with connecting block (18) through top rod (19), The inboard of fixed sleeve (2) is installed with outer connecting plate (13), one side of outer connecting plate (13) is installed with outer sleeve (3), the inboard of outer sleeve (3) is movably installed with connecting rod (10), the outboard of connecting rod (10) is sleeved with spring (9), the fixed sleeve (2) is provided with baffle (11), and spring (9) is located between outer connecting plate (13) and baffle (11), Both ends of baffle (11) extend from fixed sleeve (2), the outboard of fixed sleeve (2) is provided with threaded sleeve (8), one side of fixed sleeve (2) is fixedly installed with adjusting bolt block (12) through screw thread, and the position of baffle (11) can be adjusted through adjusting bolt block (12), One end of fixed sleeve (2) is installed with mounting rod (14), and mounting rod (14) is connected with outer connecting plate (13), one end of mounting rod (14) is fixedly installed with sealing piston (15), and outer connecting plate (13) can drive sealing piston (15) to move, The outboard of sealing piston (15) and auxiliary piston (21) are provided with sealing rubber ring, and sealing piston (15) and auxiliary piston (21) are filled with mixed liquid, The bottom of shell (1) is fixedly installed with mounting seat (4), and the bottom of mounting seat (4) is fixedly installed with mounting plate (7), The outboard of sealing piston (15) and auxiliary piston (21) are provided with sealing rubber ring, and sealing piston (15) and auxiliary piston (21) are filled with mixed liquid, Both ends of connecting elbow (6) are provided with sealing ring (23), one side of sealing ring (23) is fixedly installed with connector (22), one side of connecting elbow (6) is fixedly installed with pressure relief port (24), when working, adjusting bolt block (12) is rotated, the position of baffle (11) is controlled by adjusting bolt block (12), when baffle (11) is close to shell (1), spring (9) can be compressed, the compression of spring (9) can drive outer connecting plate (13), outer connecting plate (13) can drive mounting rod (14) to extrude, the extrusion force of mounting rod (14) can be transmitted to movable bin (20) through connecting elbow (6), be transmitted to connecting block (18) through auxiliary piston (21) in movable bin (20), connecting block (18) can lift ejection block (17) in movable slot (16), and ejection block (17) can eject stamping part.
Citation Information
Patent Citations
Automatic stamping device with high stability for automobile part production
CN212664741U