Offset forming die

Abstract

The utility model discloses an offset forming die which comprises an upper die base, an upper die plate, a lower die base and a lower die plate, the upper die plate is fixed on the upper die base, the lower die plate is fixed on the lower die base, the lower end of the upper die plate is connected with an ejector pin, the lower end of the ejector pin is connected with a sliding block, the lower die plate is provided with a check block, and the check block is transversely connected with a connecting screw in a sliding mode. A push block is locked on the connecting screw, the front end of the push block and the sliding block clamp the offset shape of a formed product, a slotting tool is fixed to the upper die plate, a first inclined face is arranged above the rear end of the push block, a second inclined face is arranged at the lower end of the slotting tool, and the first inclined face makes sliding contact with the second inclined face. A product manufactured by the offset forming die can be provided with offset characteristics at the opening, the appearance and the size of a finished product are controlled, the field of process capability can be expanded, the offset forming die flexibly adapts to design characteristics required by different products, and the offset forming die is stably put on a production line.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a step-down forming mold. Background Art

[0002] Molds are the various molds and tools used in industrial production to produce desired products through methods such as injection molding, blow molding, extrusion, die-casting, forging, smelting, and stamping. Simply put, a mold is a tool used to create a shaped object. This tool is composed of various parts, and different molds are made up of different parts. It primarily achieves the desired shape by changing the physical state of the material being molded. Known as the "mother of industry," molds are often bent during the molding process to create stepped structures. These stepped structures can result in uneven surfaces, wrinkles, and even affect the fit between components, making them unsuitable for production. Utility Model Content

[0003] One purpose of the utility model is to provide a step-difference forming die that can flexibly adapt to the step-difference characteristics of different products and control the appearance and size of the finished product.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A step-difference forming mold comprises an upper mold base, an upper mold plate, a lower mold base and a lower mold plate, the upper mold plate is fixed on the upper mold base, the lower mold plate is fixed on the lower mold base, the lower end of the upper mold plate is connected to a pin, the lower end of the pin is connected to a slider, a stopper is provided on the lower mold plate, a connecting screw is connected to the stopper for transverse sliding, a push block is locked by the connecting screw, the front end of the push block and the slider clamp the step shape of the formed product, a plunger is fixed on the upper mold plate, a first inclined surface is provided above the rear end of the push block, a second inclined surface is provided at the lower end of the plunger, and the first inclined surface is in sliding contact with the second inclined surface.

[0006] As a preferred technical solution, a first spring is connected between the ejector pin and the upper die base, a set screw is installed on the upper die base, and the upper end of the first spring is connected to the set screw.

[0007] As a preferred technical solution, a pressing block is provided at the upper end of the push block, and the pressing block is fixedly connected to the upper template.

[0008] As a preferred technical solution, a bottom insert is provided at the lower end of the push block, the bottom insert is fixed on the lower template, a stop block is installed on the bottom insert, and the upper end of the stop block protrudes upward and is stuck at the front end of the stop block.

[0009] As a preferred technical solution, the connecting screw is covered with a contour sleeve, and a second spring is provided on the outside of the contour sleeve. One end of the second spring is connected to the end of the connecting screw, and the other end of the second spring is inserted into the block.

[0010] As a preferred technical solution, a gasket is provided at the end of the contour sleeve, and the second spring is pressed on the gasket.

[0011] As a preferred technical solution, a baffle is fixed to one side of the lower template, and the baffle is used to limit the extreme position of the connecting screw.

[0012] The beneficial effects of the present invention are: providing a step-difference forming die, the products manufactured by the step-difference forming die can be marked with step features at the opening, the appearance and size of the finished product can be controlled, the field of process capabilities can be expanded, the design features required by different products can be flexibly adapted, and the products can be stably put into production on the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the partial structure of a step-down forming die described in an embodiment.

[0015] Figure 1 middle:

[0016] 1. Upper die base; 2. Upper die plate; 3. Lower die base; 4. Lower die plate; 5. Ejector pin; 6. Slider; 7. Stop block; 8. Connecting screw; 9. Push block; 10. Insert; 11. First spring; 12. Set screw; 13. Pressure block; 14. Bottom insert; 15. Stop block; 16. Contour sleeve; 17. Second spring; 18. Gasket; 19. Baffle. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0018] like Figure 1 As shown, in this embodiment, a step-difference forming mold includes an upper mold base 1, an upper mold plate 2, a lower mold base 3 and a lower mold plate 4. The upper mold plate 2 is fixed on the upper mold base 1, and the lower mold plate 4 is fixed on the lower mold base 3. The lower end of the upper mold plate 2 is connected with a ejector pin 5, and the lower end of the ejector pin 5 is connected with a slider 6. A stopper 7 is provided on the lower mold plate 4. A connecting screw 8 is connected to the stopper 7 for transverse sliding. The connecting screw 8 is locked with a push block 9. The front end of the push block 9 and the slider 6 clamp the step shape of the molded product. A plunger 10 is fixed on the upper mold plate 2. A first inclined surface is provided above the rear end of the push block 9, and a second inclined surface is provided at the lower end of the plunger 10. The first inclined surface is in sliding contact with the second inclined surface.

[0019] More specifically, a first spring 11 is connected between the ejector pin 5 and the upper die base 1, and a stop screw 12 is installed on the upper die base 1. The upper end of the first spring 11 is connected to the stop screw 12, and a pressure block 13 is provided at the upper end of the push block 9. The pressure block 13 is fixedly connected to the upper template 2, and a bottom insert 14 is provided at the lower end of the push block 9. The bottom insert 14 is fixed on the lower template 4, and a stop block 15 is installed on the bottom insert 14. The upper end of the stop block 15 protrudes upward and is stuck in the front end of the stop block 7. A contour sleeve 16 is sleeved on the connecting screw 8, and a second spring 17 is provided on the outside of the contour sleeve 16. One end of the second spring 17 is connected to the end of the connecting screw 8, and the other end of the second spring 17 is inserted into the stop block 7. A gasket 18 is provided at the end of the contour sleeve 16, and the second spring 17 presses on the gasket 18. A baffle 19 is fixed on one side of the lower template 4. The baffle 19 is used to limit the extreme position of the connecting screw 8.

[0020] In the process flow, the flow direction and deformation amount of the material in the mold are calculated and predicted, a double sliding mechanism is specified, and the appropriate direction positioning is designed on the mold. The workpiece is placed at a specific position in the mold cavity between the upper mold plate 2 and the lower mold plate 4. The punch movement transmits pressure to the upper mold base 1, so that the upper mold base 1 drives the ejector 5, inserting knife 10 and pressure block 13 on the upper mold plate 2 to move downward. The pressure block 13 presses on the push block 9 to prevent it from tilting. The ejector 5 presses on the slide 6. The inserting knife 10 slides relative to the first and second inclined surfaces, controlling the connection screw 8 to be pressed. The punch press moves until the upper die base 1 and the lower die base 3 are completely closed, and the product completes the final characteristic shape. When the product needs to be taken away after forming, the upper die base 1 drives the upper template 2 to rise, and the insert 10 leaves the push block 9. The push block 9 is reset under the action of the connecting spring, and the connecting screw 8 retreats. Under the action of the baffle 19, it reaches the limit position, and the product can also be detached and taken out.

[0021] It should be stated that the above-mentioned specific implementation methods are only preferred embodiments of the present invention and the technical principles used. Within the technical scope disclosed by the present invention, any changes or replacements that can be easily thought of by technicians familiar with this technical field should be included in the scope of protection of the present invention.

Claims

1. A step-down forming die, characterized in that: The present invention comprises an upper die base, an upper die plate, a lower die base and a lower die plate, wherein the upper die plate is fixed on the upper die base, the lower die plate is fixed on the lower die base, the lower end of the upper die plate is connected with a ejector pin, the lower end of the ejector pin is connected with a slider, a stopper is provided on the lower die plate, a connecting screw is connected to the stopper for transverse sliding, a push block is locked by the connecting screw, the front end of the push block and the slider clamp the step shape of the formed product, a plunger is fixed on the upper die plate, a first inclined surface is provided above the rear end of the push block, a second inclined surface is provided at the lower end of the plunger, and the first inclined surface is in sliding contact with the second inclined surface.

2. A step-down forming die according to claim 1, characterized in that: A first spring is connected between the ejector pin and the upper die base, a set screw is installed on the upper die base, and the upper end of the first spring is connected to the set screw.

3. A step-down forming die according to claim 1, characterized in that: A pressing block is provided at the upper end of the pushing block, and the pressing block is fixedly connected to the upper template.

4. A step-difference forming die according to claim 1, characterized in that: The lower end of the push block is provided with a bottom insert, which is fixed on the lower template. A stop block is installed on the bottom insert, and the upper end of the stop block protrudes upward and is stuck at the front end of the stop block.

5. The step forming die according to claim 1, characterized in that: The connecting screw is sleeved with a contour sleeve, and a second spring is arranged on the outside of the contour sleeve. One end of the second spring is connected to the end of the connecting screw, and the other end of the second spring is inserted into the stopper.

6. A step-difference forming die according to claim 5, characterized in that: A gasket is provided at the end of the contour sleeve, and the second spring is pressed on the gasket.

7. The step forming die according to claim 1, characterized in that: A baffle is fixed on one side of the lower template, and the baffle is used to limit the extreme position of the connecting screw.

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