Die for producing diamond compact

Abstract

The utility model relates to the technical field of production of diamond compacts, and particularly discloses a die for producing diamond compacts, which comprises a support template, an alloy external member and a fixed circular plate, a fixed circular plate is arranged over a supporting template, a limiting circular hole is formed in the center of the fixed circular plate, an alloy sleeve piece is located in the limiting circular hole, the top of the alloy sleeve piece is flush with the surface of the fixed circular plate, a circular through hole is formed in the alloy sleeve piece, and a discharging jacking column is movably arranged in the circular through hole; the limiting column body is arranged at the top of the supporting template, the ejection elastic piece is arranged outside the limiting column body in a sleeving mode, the two ends of the ejection elastic piece are connected with the discharging ejection column and the supporting template respectively, the abrasion resistance of the pressed part is effectively improved, and then the pressed part can be effectively prevented from deforming to generate clamping; and the ejection elastic piece is elastically reset to drive the discharging ejection column to eject out the materials, so that the production quality is guaranteed, and meanwhile, discharging is facilitated, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond composite sheet production, in particular to a mold for producing diamond composite sheets. Background Art

[0002] Diamond composite sheet is made of diamond powder and cemented carbide substrate sintered under ultra-high pressure and high temperature conditions. It has the high hardness, high wear resistance and thermal conductivity of diamond, and the strength and impact toughness of cemented carbide. It is an ideal material for manufacturing cutting tools, drilling bits and other wear-resistant tools.

[0003] During the production process of diamond composite sheets, diamond powder and assembly parts need to be pressed into shape. During the pressing, the assembly parts need to be placed in the inner cavity of the mold base, and the metal cup filled with diamond powder is aligned with the assembly parts. The pressure rod presses the diamond powder and the assembly parts in the mold cavity into one. However, during the pressing process of the diamond powder and the assembly parts of the existing mold, the metal cup filled with powder is easily stuck in the mold cavity after being subjected to the pre-pressure of the pressure rod, and the continuous long-term pressing work will cause the mold sleeve to wear, which will cause the diamond composite sheet to get stuck when it is discharged, affecting the production quality and production efficiency of the diamond composite sheet.

[0004] Referring to the Chinese utility model patent with the patent publication number "CN221109895U" and the patent name "Diamond composite sheet pressing die", the technical scheme discloses "a diamond composite sheet pressing die, including an inner core die, a cylindrical die and a pressing rod, the inner core die includes an inner cup, an upper cover and an outer cup, the cylindrical die includes an inner cavity, one end of the inner cavity is provided with an inlet and the other end is provided with an outlet, an inlet area, an extrusion area and an outlet area are sequentially provided between the inlet and the outlet, the diameter of the extrusion area is less than or equal to the outer diameter of the outer cup, the pressing rod is provided with a pressure rod, and the pressure rod is provided with a pressure rod. The rod includes a rod body and a pressure head, and the diameter of the pressure head is less than or equal to the diameter of the extrusion zone. "Although this technical solution can squeeze the overlapping part of the inner and outer cups, can ensure the density and stability of the diamond powder, and the powder is not easy to leak out between the inner cup and the alloy, and can prevent external gas and impurities from entering the diamond composite sheet material from the gap between the outer cup, the inner cup and the upper cover, it can prolong the storage time of the diamond composite sheet and facilitate production, but this technical solution cannot effectively prevent the wear of the die sleeve caused by continuous long-term pressing work, thereby causing the discharge jam.

[0005] Therefore, how to prevent the diamond composite sheet mold from getting stuck is the main technical problem that technicians need to solve. Utility Model Content

[0006] The purpose of the utility model is to provide a mold for producing diamond composite sheets to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A mold for producing a diamond composite sheet, comprising:

[0009] Support formwork, alloy kit and fixed circular plate;

[0010] The fixed circular plate is arranged directly above the supporting template, a limited circular hole is provided at the center of the fixed circular plate, the alloy set is located inside the limited circular hole, and the top of the alloy set is flush with the surface of the fixed circular plate;

[0011] A circular through hole is arranged inside the alloy kit, and a discharge ejector column is movably arranged inside the circular through hole. A limiting column is arranged on the top of the support template, and a discharge ejector elastic member is sleeved on the outside of the limiting column. The two ends of the discharge ejector elastic member are respectively connected to the discharge ejector column and the support template.

[0012] Preferably, a mold cavity shell is arranged between the supporting template and the fixed circular plate, the fixed circular plate is fixed on the top of the mold cavity shell, and the supporting template is fixed on the bottom of the mold cavity shell.

[0013] Preferably, a mounting through hole is opened at the center of the mold cavity shell, the mounting through hole is aligned with the limiting circular hole, and the central axis of the discharge ejector column and the central axis of the mounting through hole are both located on the same central axis.

[0014] Preferably, the alloy kit is integrally formed of high-chromium cast iron.

[0015] Preferably, the alloy kit includes a first annular cylinder and a second annular cylinder, the first annular cylinder is located on the top of the second annular cylinder, and the outer diameter of the first annular cylinder is smaller than the outer diameter of the second annular cylinder, and the outer wall of the first annular cylinder fits with the inner wall of the limiting circular hole.

[0016] Preferably, the central axis of the first annular cylinder and the central axis of the second annular cylinder are both located on the same central axis.

[0017] Preferably, both ends of the mold cavity shell are provided with a plurality of fixing circular holes, the outside of the fixing circular plate and the supporting template are provided with a plurality of locking cylinders, and the plurality of fixing circular holes are connected one by one with a plurality of locking cylinders.

[0018] Compared with the prior art, the present technical solution provides a mold for producing diamond composite sheets: by providing a supporting template, an alloy kit and a fixed circular plate, the fixed circular plate is arranged directly above the supporting template, and a limited circular hole is opened at the center of the fixed circular plate so that the alloy kit is located inside the limited circular hole, and the top of the alloy kit is flush with the surface of the fixed circular plate, thereby ensuring that during the pressing process, the bottom of the pressing rod can contact the alloy kit, the wear resistance is increased by the alloy kit, and a circular through hole is provided inside the alloy kit, and a discharge top is movably provided inside the circular through hole. The column can support the diamond assembly with the discharge ejector column. A limiting column is arranged on the top of the supporting template. A ejector elastic member is sleeved on the outside of the limiting column. The two ends of the ejector elastic member are respectively connected to the discharge ejector column and the supporting template. Therefore, after punching the diamond composite sheet, the ejector elastic member drives the rebound of the discharge ejector column to eject the finished product. The utility model effectively improves the wear resistance of the punching part, thereby preventing the diamond composite sheet from being stuck during the pressing process. While ensuring the production quality, it is also convenient for discharging to improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the alloy inner sleeve structure in the utility model.

[0022] Figure 3 It is a schematic diagram of the structure of the limiting top column and the discharging top column in the utility model.

[0023] Figure 4 It is a structural diagram of a fixed circular plate in the utility model.

[0024] Figure 5 It is a schematic diagram of the mold cavity shell structure of the utility model.

[0025] Figure 6 It is a schematic diagram of the supporting template and the limiting top column structure in the utility model.

[0026] As shown in the figure: 1. Support template; 2. Alloy kit; 3. Fixed circular plate; 4. Mold cavity shell; 11. Limiting cylinder; 12. Ejecting elastic member; 21. Circular through hole; 22. Discharge ejector column; 31. Limiting circular hole; 41. Mounting through hole; 201. First annular cylinder; 202. Second annular cylinder. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. All other embodiments obtained by ordinary personnel in this field without making creative work belong to the protection scope of the utility model. The preferred implementation of the utility model will be described in more detail below with reference to the drawings. Although the preferred implementation of the utility model is shown in the drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the implementation described here. On the contrary, these implementations are provided to make the utility model more thorough and complete, and to fully convey the scope of the utility model to those skilled in the art.

[0028] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] In the description of the present invention, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various components in the present invention, this information should not be limited to these terms. These terms are only used to distinguish components of the same type from each other. For example, without departing from the scope of the present invention, the first component may also be referred to as the second component, and similarly, the second component may also be referred to as the first component. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] The technical solution of the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0034] refer to Figures 1 to 6 A mold for producing diamond composite sheets, comprising: a supporting template 1, an alloy sleeve 2 and a fixed circular plate 3; the fixed circular plate 3 is arranged directly above the supporting template 1, a limited circular hole 31 is opened at the center of the fixed circular plate 3, the alloy sleeve 2 is located inside the limited circular hole 31, and the top of the alloy sleeve 2 is flush with the surface of the fixed circular plate 3; a circular through hole 21 is arranged inside the alloy sleeve 2, and a discharge ejector column 22 is movably arranged inside the circular through hole 21, a limited cylinder 11 is arranged on the top of the supporting template 1, and a ejector elastic member 12 is sleeved on the outside of the limited cylinder 11, and the two ends of the ejector elastic member 12 are respectively connected to the discharge ejector column 22 and the supporting template 1.

[0035] Specifically, a mold cavity shell 4 is disposed between the support template 1 and the fixed circular plate 3 , the fixed circular plate 3 is fixed to the top of the mold cavity shell 4 , and the support template 1 is fixed to the bottom of the mold cavity shell 4 .

[0036] Specifically, a mounting through hole 41 is opened at the center of the mold cavity shell 4, the mounting through hole 41 is aligned with the limiting circular hole 31, and the central axis of the discharge ejector column 22 and the central axis of the mounting through hole 41 are both located on the same central axis.

[0037] Specifically, the alloy set 2 is integrally formed of high-chromium cast iron.

[0038] Specifically, the alloy sleeve 2 includes a first annular cylinder 201 and a second annular cylinder 202, the first annular cylinder 201 is located at the top of the second annular cylinder 202, and the outer diameter of the first annular cylinder 201 is smaller than the outer diameter of the second annular cylinder 202, and the outer wall of the first annular cylinder 201 fits with the inner wall of the limiting circular hole 31.

[0039] Specifically, the central axis of the first annular cylinder 201 and the central axis of the second annular cylinder 202 are both located on the same central axis.

[0040] Specifically, both ends of the mold cavity shell 4 are provided with a plurality of fixing circular holes, the outside of the fixing circular plate 3 and the supporting template 1 are provided with a plurality of locking cylinders 100 , and the plurality of fixing circular holes are connected one by one with the plurality of locking cylinders 100 .

[0041] Embodiment 1

[0042] In order to improve the wear resistance of the pressed part during the pressing of the diamond composite sheet, and thus prevent the pressed part from being deformed and stuck due to wear, in this embodiment: a support template 1, an alloy kit 2 and a fixed circular plate 3 are provided, the fixed circular plate 3 is arranged directly above the support template 1, and a limited circular hole 31 is opened at the center of the fixed circular plate 3, so that the alloy kit 2 is located inside the limited circular hole 31, and the top of the alloy kit 2 is flush with the surface of the fixed circular plate 3, and a circular through hole 21 is provided inside the alloy kit 2, so that the pressed parts to be pressed can be placed in sequence. The assembled part and the diamond micro-powder metal cup are placed in the circular through hole 21, and a discharge top column 22 is movably arranged inside the circular through hole 21. The discharge top column 22 supports the assembled part and the diamond micro-powder metal cup to be pressed together. When the pressing rod is in the pressing process, the end of the pressing rod pre-presses the diamond micro-powder metal sheet in the circular through hole 21, so that the diamond micro-powder metal sheet and the assembled part are pressed together. In this process, since the end of the pressing rod will contact the alloy kit 2, the wear resistance is improved by the alloy, which effectively prevents the occurrence of pressing jams caused by deformation.

[0043] It should be noted that in order to ensure the pressing and guarantee the stable force, a cavity shell 4 is provided between the supporting template 1 and the fixed circular plate 3, the fixed circular plate 3 is fixed to the top of the cavity shell 4, and the supporting template 1 is fixed to the bottom of the cavity shell 4, so that the cavity shell 4 can support the fixed circular plate 3, and the supporting template 1 can support the cavity shell 4, and the stable force can be maintained.

[0044] It should be noted that, in order to ensure the wear resistance of the alloy kit 2, in this embodiment, the alloy kit 2 can be formed as a whole by high-chromium cast iron. High-chromium cast iron is also called high-chromium white wear-resistant cast iron, which is an anti-wear material with excellent performance and is particularly valued. It has much higher wear resistance than alloy steel, much higher toughness and strength than ordinary white cast iron, and it also has good high temperature resistance and corrosion resistance.

[0045] It should also be noted that the alloy kit 2 includes a first annular cylinder 201 and a second annular cylinder 202. The first annular cylinder 201 is located on the top of the second annular cylinder 202, and the outer diameter of the first-shaped cylinder is smaller than the outer diameter of the second annular cylinder 202, so that the outer wall of an annular cylinder fits with the inner wall of the limiting circular hole 31. The first annular cylinder 201 can be clamped with the limiting circular hole 31, thereby fixing one end of the alloy kit 2 in the limiting circular hole 31.

[0046] It is particularly noted that by making the central axis of the first annular cylinder 201 and the central axis of the second annular cylinder 202 located on the same central axis, it is ensured that the first annular cylinder 201 and the second annular cylinder 202 are cut in half, preventing the discharge top column 22 from moving inside the alloy sleeve 2 due to the same midpoints of the first annular cylinder 201 and the second annular cylinder 202.

[0047] In response to the above description, it should be added that, by providing a plurality of fixed circular holes at both ends of the mold cavity shell 4, and by providing a plurality of locking cylinders on the outside of the fixed circular plate 3 and the supporting template 1, the plurality of fixed circular holes are connected one by one with the plurality of locking cylinders, and the locking cylinders can be screwed, thereby facilitating the disassembly or assembly of the fixed circular plate 3 and the supporting template 1. After the assembly is completed, the locking cylinders can be connected one by one with the fixed through holes to ensure the stability of the connection, and can also ensure that the fixed circular plate 3 and one end of the mold cavity shell 4 are firmly connected, with high contact sealing, and can also ensure the stability of the connection between the supporting template 1 and the other end of the mold cavity shell 4, effectively facilitating the disassembly or installation of the fixed circular plate 3 and the supporting cross plate.

[0048] Embodiment 2

[0049] In order to realize ejecting the diamond composite sheet after the pressing action of the diamond composite sheet is completed, so as to facilitate the discharge and improve the production efficiency, in this embodiment: a circular through hole 21 is provided inside the alloy set 2, and a discharge ejector column 22 is movably provided inside the circular through hole 21, so that when the diamond composite sheet in the circular through hole 21 is pressed, the diamond composite sheet can be ejected by moving the discharge ejector column 22 toward the circular through hole 21, thereby completing the discharge action; a limiting column 11 is provided on the top of the support template 1, so that the limiting column 11 has a limiting effect on the bottom of the discharge ejector column 22, ensuring that during the pressing action, the bottom of the discharge ejector column 22 stops moving after contacting the limiting column 11, so as to ensure that the pressing force is applied;

[0050] In order to achieve the resilience of the ejector column 22, an ejector elastic member 12 can be sleeved on the outside of the limiting column 11, and the two ends of the ejector elastic member 12 are respectively connected to the ejector column 22 and the supporting template 1. After the pressing action is completed, the ejector elastic member 12 can be reset. During the reset process, the ejector column 22 can be driven to move toward the circular through hole 21 to eject the diamond composite sheet, which effectively facilitates the ejection to improve the production efficiency, and can ensure the smooth movement of the ejector column 22 during ejection.

[0051] It should be noted that in order to ensure smooth movement of the ejector column 22 and prevent ejection jamming caused by the ejector column 22 being tilted, a mounting through hole 41 is opened at the center of the mold cavity shell 4 to align the mounting through hole 41 with the limiting circular hole 31. The central axis of the ejector column 22 and the central axis of the mounting through hole 41 are both located on the same central axis, thereby ensuring that the ejector column 22 is located in the mounting through hole 41. The mounting through hole 41 of the mold cavity shell 4 limits the ejector column 22, thereby effectively preventing ejection jamming due to position offset when the ejector column 22 interacts.

[0052] The scheme of the utility model has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the utility model. In addition, it can be understood that the steps in the method of the embodiment of the utility model can be adjusted in order, merged and deleted according to actual needs, and the structure in the device of the embodiment of the utility model can be merged, divided and deleted according to actual needs.

[0053] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A mold for producing a diamond composite sheet, characterized in that: include: Support formwork, alloy kit and fixed circular plate; The fixed circular plate is arranged directly above the supporting template, a limited circular hole is provided at the center of the fixed circular plate, the alloy sleeve is located inside the limited circular hole, and the top of the alloy sleeve is flush with the surface of the fixed circular plate; A circular through hole is arranged inside the alloy sleeve, and a discharge ejector column is movably arranged inside the circular through hole. A limiting column is arranged on the top of the supporting template. A discharge ejector elastic member is sleeved on the outside of the limiting column. Both ends of the discharge ejector elastic member are respectively connected to the discharge ejector column and the supporting template.

2. A mold for producing a diamond composite sheet according to claim 1, characterized in that: A mold cavity shell is arranged between the supporting template and the fixed circular plate, the fixed circular plate is fixed on the top of the mold cavity shell, and the supporting template is fixed on the bottom of the mold cavity shell.

3. A mold for producing a diamond composite sheet according to claim 2, characterized in that: A mounting through hole is provided at the center of the mold cavity shell, the mounting through hole is aligned with the limiting circular hole, and the central axis of the discharge ejector column and the central axis of the mounting through hole are both located on the same central axis.

4. A mold for producing a diamond composite sheet according to claim 1, characterized in that: The alloy set is integrally formed of high-chromium cast iron.

5. A mold for producing a diamond composite sheet according to claim 1, characterized in that: The alloy kit includes a first annular cylinder and a second annular cylinder. The first annular cylinder is located on the top of the second annular cylinder, and the outer diameter of the first annular cylinder is smaller than the outer diameter of the second annular cylinder. The outer wall of the first annular cylinder fits the inner wall of the limiting circular hole.

6. A mold for producing a diamond composite sheet according to claim 5, characterized in that: The central axis of the first annular cylinder and the central axis of the second annular cylinder are both located on the same central axis.

7. A mold for producing a diamond composite sheet according to claim 2, characterized in that: Both ends of the mold cavity shell are provided with a plurality of fixed circular holes, the fixed circular plate and the supporting template are provided with a plurality of locking cylinders, and the plurality of fixed circular holes are connected one by one with the plurality of locking cylinders.

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