Forming die assembly for pressing alloy circular blade

Abstract

The utility model discloses a forming die assembly for pressing an alloy circular blade, which belongs to the technical field of circular blade dies and comprises a first die plate, and a through hole penetrating in the height direction is arranged in the first die plate. The second mold plate is arranged in the via hole, a forming space is defined between the top of the second mold plate and the via hole, the demolding ring is arranged below the second mold plate, and the projection of the demolding ring in the height direction is overlapped with the second mold plate; the bottom plate is arranged below the demolding ring, a movable positioning plate is arranged on the bottom plate, and the positioning plate moves to selectively position the demolding ring and the first mold plate. According to the forming mold assembly designed by the utility model, the projection of the demolding ring in the height direction is overlapped with the second mold plate, so that the stress area between the second mold plate and the demolding ring is larger in the demolding work, the stress of the second mold plate is more uniform, and the demolding quality is further improved; and meanwhile, the positioning efficiency of the demolding ring and the second mold plate can be improved by using the positioning plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to round blade mould technical field, concretely relates to alloy round blade presss from both sides and uses the forming die assembly. BACKGROUND

[0002] In the related art, in the metal processing industry, alloy round blade is widely used in cutting, machining and other processes as an important tool. The traditional alloy round blade manufacturing method usually includes putting alloy powder into a mold, then pressing by applying high pressure, and finally forming the final product through sintering and other subsequent treatments. In the prior art, a through hole is provided in the first mold plate, and a second mold plate is arranged in the through hole and cooperates with the through hole to define a forming groove for accommodating alloy powder. After the alloy powder is pressed, a demolding ring needs to be placed below the second mold plate and the first mold plate is controlled to move relative to the second mold plate to realize demolding. However, in order to facilitate the cooperation between the demolding ring and the second mold plate, the area of the demolding ring is usually smaller than that of the second mold plate, resulting in uneven stress on the second mold plate during demolding and affecting the demolding quality. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, one purpose of the utility model is to provide an alloy round blade press forming die assembly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] The utility model provides alloy round blade press forming die assembly, include: first mold plate, be provided with in the first mold plate in the height direction through hole, second mold plate, second mold plate is arranged in the through hole, the outer peripheral wall of second mold plate and the inner peripheral wall of through hole stop and resist, the top of second mold plate and through hole define the forming space that opens towards top, the forming space is suitable for placing alloy powder, demolding ring, demolding ring is arranged in the lower of second mold plate, the projection of demolding ring in the height direction and second mold plate overlap, bottom plate, bottom plate is arranged in the lower of demolding ring, be provided with movable positioning plate on bottom plate, the positioning plate moves to selectively with demolding ring and first mold plate positioning, the center of the demolding ring after positioning and the center of second mold plate overlap in the height direction.

[0006] According to the alloy round blade pressing forming die assembly, the projection of the demolding ring in the height direction overlaps the second die plate, so that the stress area between the second die plate and the demolding ring during demolding is larger, the stress of the second die plate is more uniform, and the demolding quality is improved.

[0007] Further, the bottom of the first die plate is provided with a stop block, the bottom of the stop block is in the same plane as the bottom of the second die plate; wherein the positioning plate moves to drive the movement of the demolding ring and the stop block, thereby positioning the first die plate and the demolding ring.

[0008] Further, the positioning plate comprises: a first part, the first part is movably connected to the bottom plate, the first part is provided with a first stop surface facing the demolding ring, the first stop surface is adapted to stop the outer peripheral wall of the demolding ring, the top of the first part is provided with a first area and a second area, the first area is arranged around the outer periphery of the second area, and the second area is adapted to stop the bottom of the stop block; a second part, the second part is arranged in the first area, and the second part is provided with a second stop surface facing the stop block, and the second stop surface is adapted to stop the outer peripheral wall of the stop block.

[0009] Further, two positioning plates are movably arranged on the bottom plate, and the two positioning plates are arranged at two ends of the bottom plate in the length direction.

[0010] Further, the stop block is configured as a plurality of stop blocks, the plurality of stop blocks are distributed along the circumference of the through hole, and the positioning plate is adapted to stop at least one stop block.

[0011] Further, the first stop surface is configured as a first arc surface facing the demolding ring, and the first arc surface is adapted to stop the outer peripheral wall of the demolding ring; and the second stop surface is configured as a second arc surface facing the stop block, and the second arc surface is adapted to stop the outer peripheral wall of at least one stop block.

[0012] Further, the bottom plate is provided with a sliding groove extending in the length direction, the bottom of the first part is provided with a sliding block, and the sliding block is movably arranged in the sliding groove.

[0013] Further, the side of the first part away from the demolding ring is provided with an operating handle.

[0014] The other advantages, objects, and features of the present application will become apparent from the following specification, and it is intended to be covered by the following claims, not to be limited to the preferred embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0015] For the purposes of the present application, the following drawings are provided:

[0016] Figure 1 is a schematic view of the molding die assembly of the present application;

[0017] Figure 2 is an exploded view of the molding die assembly of the present application;

[0018] Figure 3 is a schematic view of the cooperation of the first die plate, the second die plate, and the third die plate of the present application;

[0019] Figure 4 is a sectional view of the molding die plate of the present application.

[0020] The reference signs in the drawings are as follows:

[0021] 1. Molding die assembly

[0022] 10. First die plate; 11. Through hole; 12. Molding space; 13. Stop block

[0023] 20. Second die plate; 30. Third die plate; 40. Demolding ring

[0024] 50. Base plate; 51. Slide groove

[0025] 60. Positioning plate; 61. First split part; 611. Operating handle; 62. Second split part DETAILED DESCRIPTION

[0026] In order to make the objects, technical solutions, and advantages of the present application clearer, the following further describes the present application in conjunction with the embodiments and drawings, and the schematic embodiments and their descriptions of the present application are only used to explain the present application, and are not intended to limit the present application.

[0027] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without these specific details. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order to avoid obscuring the present application.

[0028] Throughout this specification, the term "one embodiment," "an embodiment," "one example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment," "an embodiment," "in one example," or "an example" in various places in the specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments or examples. In addition, the skilled person will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] In the description of the present application, it should be understood that the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0030] Embodiment one:

[0031] As shown in Figures 1-4 The present application provides a forming die assembly 1 for pressing alloy round blades, comprising: a first die plate 10, a second die plate 20, a demolding ring 40 and a bottom plate 50, a through hole 11 penetrating in the height direction is arranged in the first die plate 10, the second die plate 20 is arranged in the through hole 11, the outer peripheral wall of the second die plate 20 abuts against the inner peripheral wall of the through hole 11, a forming space 12 open toward the top is defined between the top of the second die plate 20 and the through hole 11, the forming space 12 is suitable for placing alloy powder, the demolding ring 40 is arranged below the second die plate 20, the projection of the demolding ring 40 in the height direction overlaps the second die plate 20, the bottom plate 50 is arranged below the demolding ring 40, a movable positioning plate 60 is arranged on the bottom plate 50, the positioning plate 60 is moved to selectively position the demolding ring 40 and the first die plate 10, and the center of the demolding ring 40 after positioning overlaps the center of the second die plate 20 in the height direction.

[0032] In some embodiments, the first die plate 10 is a plate member with a through hole (through hole 11), the first die plate 10 provides a frame for the entire die assembly, and the through hole 11 is vertically arranged to allow the second die plate 20 to move up and down in the through hole 11, the second die plate 20 is located inside the through hole 11 of the first die plate 10, the outer peripheral wall of the second die plate 20 closely fits on the inner peripheral wall of the through hole 11, ensuring that there is no gap between the second die plate 20 and the through hole 11, the space between the top of the second die plate 20 and the through hole 11 forms an open molding space 12, the molding space 12 is used to accommodate the alloy powder to be pressed, the stripper ring 40 is located below the second die plate 20, the projection area of the stripper ring 40 covers the bottom area of the second die plate 20, the bottom plate 50 is the basis of the entire molding die assembly 1, and the positioning plate 60 is a movable component installed on the bottom plate 50. The positioning plate 60 is used to accurately position the stripper ring 40 and the first die plate 10 to ensure that the center point of the stripper ring 40 and the center point of the second die plate 20 are aligned in the height direction.

[0033] It is worth mentioning that the molding die assembly 1 further comprises a third die plate 30, and the projection of the third die plate 30 in the height direction overlaps the through hole 11.

[0034] It can be understood that the molding die of the present application is suitable for cooperation with a cold press, and the cold press comprises a workbench and a moving table. In production, the bottom plate 50 is first placed on the workbench, and then the second die plate 20 is placed in the through hole 11. At this time, the top of the second die plate 20 and the inner peripheral wall of the through hole 11 define the molding space 12. Then, the alloy powder is poured into the molding space 12, and the alloy powder in the molding space 12 is scraped flat (the top surface of the alloy powder after scraping is flush with the top surface of the first die plate 10) by using a scraper or the like. Then, the third die plate 30 is placed above the first die plate 10, and the projection of the third die plate 30 in the height direction overlaps the through hole 11. Finally, the cold press is started, and the cold press works to move the moving table in the height direction towards the workbench. The moving table moves to abut against the third die plate 30, and drives the third die plate 30 to move so that at least part of the third die plate 30 is located in the through hole 11. In this way, the first die plate 10, the second die plate 20 and the third die plate 30 press the alloy powder into a circular blade by pressure.

[0035] It is worth mentioning that after the alloy powder pressing is completed, the demolding ring 40 is placed between the second mold plate 20 and the bottom plate 50, and then the positioning plate 60 is moved, and the positioning plate 60 is suitable for driving the demolding ring 40 and the first mold plate 10 to move, so as to position the demolding ring 40 and the first mold plate 10, and the center of the demolding ring 40 and the center of the second mold plate 20 overlap in the height direction after positioning, and the projection of the demolding ring 40 and the second mold plate 20 in the height direction overlaps, and then the worker places the demolding block on the top of the first mold plate 10 (the height of the demolding block is greater than the height of the third mold plate 30), at this time, the cold press is started again, and the cold press works to move the moving block, and the moving block is suitable for driving the demolding block to move towards the workbench, so as to indirectly drive the first mold plate 10 to move towards the workbench, until the projection of the first mold plate 10 in the horizontal direction is spaced from the second mold plate 20, and thus the demolding work is completed. The alloy powder pressed into a circular blade is subjected to subsequent processing to form a final product.

[0036] Of course, the projection of the demolding ring 40 of the present application in the height direction overlaps the second mold plate 20, so that the stress area between the second mold plate 20 and the demolding ring 40 is larger during demolding, so that the pressure on the second mold plate 20 can be reduced, thereby prolonging the service life of the second mold plate 20. At the same time, the above-mentioned arrangement makes the placement of the second mold plate 20 more stable, so that the demolding work is more smooth and stable, ensures the demolding quality, improves the production quality and production consistency.

[0037] According to the alloy circular blade pressing forming die assembly 1 of the utility model, the positioning of the demolding ring 40 and the first mold plate 10 is realized through the movement of the positioning plate 60, so that the projection of the demolding ring 40 in the height direction can completely overlap the second mold plate 20, avoiding the waste of a lot of time to adjust the position of the demolding ring 40, improving the demolding efficiency, and thereby improving the production efficiency.

[0038] Embodiment two:

[0039] In this embodiment, on the basis of embodiment one, the bottom of the first mold plate 10 is provided with a stop block 13, and the bottom of the stop block 13 is in the same plane as the bottom of the second mold plate 20; wherein the positioning plate 60 is moved to drive the demolding ring 40 and the stop block 13 to move, so as to realize the positioning of the first mold plate 10 and the demolding ring 40.

[0040] In some embodiments, the height of the first die plate 10 is equal to the height of the second die plate 20, whereby, when the bottom of the second die plate 20 is in the same plane as the bottom of the stopper 13, the height of the stopper 13 is equal to the height of the forming space 12, whereby, through the above-mentioned arrangement, the volume of the alloy powder in the forming space 12 each time can be guaranteed, thereby guaranteeing the forming quality of each batch of alloy round blades and ensuring the consistency of production.

[0041] It can be understood that, before pressing, the stopper 13 and the stripper ring 40 are synchronously driven to the preset positions by moving the positioning plate 60, so that the center of the stripper ring 40 is aligned with the center of the second die plate 20.

[0042] The action of the positioning plate 60 simultaneously affects the stripper ring 40 and the stopper 13, thereby realizing the accurate relative positioning between the first die plate 10 (including the via 11 and the second die plate 20) and the stripper ring 40, that is, since the positioning plate 60 can simultaneously control multiple components, this reduces the operation steps, improves the work efficiency, and reduces the risk of errors caused by improper manual operation.

[0043] According to some embodiments of the present application, the positioning plate 60 comprises: a first split part 61 and a second split part 62, the first split part 61 is movably connected with the bottom plate 50, the first split part 61 is provided with a first stop surface facing the stripper ring 40, the first stop surface is adapted to stop with the outer peripheral wall of the stripper ring 40, the top of the first split part 61 is provided with a first region and a second region, the first region is annularly arranged outside the second region, the second region is adapted to stop with the bottom of the stopper 13, the second split part 62 is arranged in the first region, the second split part 62 is provided with a second stop surface facing the stopper 13, the second stop surface is adapted to stop with the outer peripheral wall of the stopper 13.

[0044] In some embodiments, the first stop surface of the first split part 61 ensures the accurate positioning of the stripper ring 40, so that the center of the stripper ring 40 is in the preset position, the second stop surface of the second split part 62 contacts with the outer peripheral wall of the stopper 13, so that the stopper 13 can also be located in the preset position, thereby making the first die plate 10, the second die plate 20 and the third die plate 30 respectively located in the preset position, when the stripper ring 40 and the second die plate 20 are both located in the preset position, the projection of the center of the stripper ring 40 and the center of the second die plate 20 in the height direction overlaps.

[0045] Therefore, through the above-mentioned arrangement, the projection of the center of the stripper ring 40 and the center of the second die plate 20 in the height direction can be further guaranteed to overlap, thereby guaranteeing the demolding efficiency and the demolding quality.

[0046] Of course, the contact of the second area with the bottom of the stop block 13 provides additional support for the second mold plate 20 in the vertical direction, enhancing the stability of the placement of the first mold plate 10, the second mold plate 20 and the third mold plate 30.

[0047] Embodiment three:

[0048] In this embodiment, two positioning plates 60 are movably arranged on the bottom plate 50, and the two positioning plates 60 are arranged at the two ends of the bottom plate 50 in the length direction.

[0049] It can be understood that the two ends of the bottom plate 50 in the length direction are respectively provided with movable positioning plates 60, and the two positioning plates 60 are moved towards each other to control the movement of the demolding ring 40 and the stop block 13 to the preset position, thereby ensuring the positioning effect of the demolding ring 40 and the stop block 13, which is simple and easy to operate, and improves the demolding efficiency.

[0050] Of course, since the two ends of the demolding ring 40 and the stop block 13 in the length direction are limited, the positioning effect of the demolding ring 40 and the stop block 13 can be better.

[0051] According to some embodiments of the present application, the stop block 13 is configured as a plurality of stop blocks 13, and the plurality of stop blocks 13 are distributed along the circumference of the through hole 11, and the positioning plate 60 is adapted to be in abutting cooperation with at least one stop block 13.

[0052] Compared with one complete stop block 13 surrounding the through hole 11, the plurality of stop blocks 13 can reduce the weight of the first mold plate 10, thereby facilitating the use of the molding mold assembly 1, and can also reduce the production cost of the first mold plate 10, thereby reducing the production cost of the molding mold assembly 1.

[0053] According to some embodiments of the present application, the first stop surface is configured as a first arc surface facing the demolding ring 40, and the first arc surface is adapted to abut with the outer peripheral wall of the demolding ring 40; the second stop surface is configured as a second arc surface facing the stop block 13, and the second arc surface is adapted to abut with the outer peripheral wall of at least one stop block 13. It is worth mentioning that the center of the first arc surface and the center of the through hole 11 overlap in the height direction, and the center of the second arc surface and the center of the through hole 11 overlap in the height direction.

[0054] In some embodiments, the first arc-shaped surface can be attached to the outer peripheral wall of the demolding ring 40, so that when the positioning plate 60 drives the demolding ring 40, the demolding ring 40 is more stable in force, so that the demolding ring 40 can be stably moved and positioned along the preset path, of course, the first arc-shaped surface of the two positioning plates 60 is respectively abutted on both sides of the demolding ring 40 in the length direction, so that the demolding ring 40 can be completely positioned in the horizontal direction, so that the positioning of the demolding ring 40 is more accurate.

[0055] The outer peripheral wall of each of the plurality of abutting blocks 13 is configured as an arc-shaped surface, and the center of the arc-shaped surface of the outer peripheral wall of each of the plurality of abutting blocks 13 overlaps with the center of the hole 11, and when the positioning plate 60 drives the abutting block 13 to move, the second arc-shaped surface can be attached to the outer peripheral wall of the abutting block 13, so that the abutting block 13 is more stable in force, so that the abutting block 13 can be stably moved along the preset path, of course, the two second arc-shaped surfaces are respectively located at both ends of the plurality of abutting blocks 13 in the length direction, so that the plurality of abutting blocks 13 can be completely positioned in the horizontal direction, so that the positioning of the abutting block 13 is more accurate, and the positioning of the second mold plate 20 is more accurate.

[0056] Embodiment four:

[0057] In this embodiment, the base plate 50 is provided with a sliding groove 51 extending in the length direction, and the bottom of the first split part 61 is provided with a sliding block movably arranged in the sliding groove 51.

[0058] In some embodiments, the inner peripheral wall of the sliding groove 51 can limit the outer peripheral wall of the sliding block, so that the sliding block can be stably moved along the extension direction of the sliding groove 51, so that the sliding block can be stably moved in the length direction, and the positioning plate 60 can be stably moved in the length direction, thereby ensuring the stability of the movement of the positioning plate 60 and improving the working stability of the molding mold assembly 1.

[0059] According to some embodiments of the present application, the side of the first split part 61 away from the demolding ring 40 is provided with an operating handle 611.

[0060] In some embodiments, the operator can control the movement of the positioning plate 60 by operating the operating handle 611, and the setting of the operating handle 611 makes the movement of the positioning plate 60 more convenient, so that the positioning of the demolding ring 40 and the first mold plate 10 is more convenient, and the demolding efficiency is improved.

[0061] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. An alloy round blade press forming die assembly characterized by, The utility model relates to a mold for forming a sintered alloy ring, comprising: a first mold plate having a through hole extending in a height direction; a second mold plate disposed in the through hole, an outer peripheral wall of the second mold plate abutting against an inner peripheral wall of the through hole, and a top of the second mold plate and the through hole defining a molding space open toward the top, the molding space being adapted to hold alloy powder; a demolding ring disposed below the second mold plate, a projection of the demolding ring in the height direction overlapping the second mold plate; a base plate disposed below the demolding ring, the base plate having a movable positioning plate disposed thereon, the positioning plate being movable to selectively position the demolding ring and the first mold plate, a center of the demolding ring and a center of the second mold plate being overlapped in the height direction after positioning.

2. The alloy round blade press forming die assembly according to claim 1, characterized by, a bottom of the first mold plate having an abutting block, a bottom of the abutting block being in the same plane as a bottom of the second mold plate; wherein the positioning plate is movable to drive the demolding ring and the abutting block to move, thereby positioning the first mold plate and the demolding ring.

3. The alloy round blade press forming die assembly according to claim 2, characterized by, the positioning plate comprises: a first part, the first part being movably connected to the base plate, the first part having a first abutting surface facing the demolding ring, the first abutting surface being adapted to abut against an outer peripheral wall of the demolding ring, a top of the first part having a first region and a second region, the first region being disposed around an outer periphery of the second region, the second region being adapted to abut against a bottom of the abutting block; a second part, the second part being disposed in the first region, the second part having a second abutting surface facing the abutting block, the second abutting surface being adapted to abut against an outer peripheral wall of the abutting block.

4. The alloy round blade press forming die assembly according to claim 3, characterized by two positioning plates are movably disposed on the base plate, the two positioning plates being respectively disposed at two ends of the base plate in a length direction.

5. The alloy round blade press forming die assembly according to claim 3, wherein the abutting block is configured as a plurality of abutting blocks, the plurality of abutting blocks being spaced apart along a circumferential direction of the through hole, the positioning plate being adapted to abut against at least one of the abutting blocks.

6. The alloy round blade press forming die assembly according to claim 5, wherein the first abutting surface is configured as a first arc surface facing the demolding ring, the first arc surface being adapted to abut against the outer peripheral wall of the demolding ring; the second abutting surface is configured as a second arc surface facing the abutting block, the second arc surface being adapted to abut against the outer peripheral wall of the at least one abutting block.

7. The alloy round blade press forming die assembly according to claim 3, wherein the base plate has a sliding groove extending in the length direction, a bottom of the first part having a sliding block movably disposed in the sliding groove.

8. The alloy round blade press forming die set assembly of claim 7 wherein, a handle is disposed on a side of the first part facing away from the demolding ring.

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