Engraving die for cemented carbide

Abstract

The utility model discloses a kind of lettering moulds for hard alloy, it is related to mould technical field.Lettering mould includes lower die holder, upper die holder, guide mechanism, lettering punch and compression mould, upper die holder and lower die holder are connected with each other and interval arrangement in height direction;Guide mechanism is connected between lower die holder and upper die holder and is suitable for guiding upper die holder to move close to or away from lower die holder;Lettering punch is set on one of lower die holder and upper die holder;Compression mould is set on another of lower die holder and upper die holder, and compression mould and lettering punch are directly opposite arrangement in the relative movement direction of lower die holder and upper die holder;Wherein, when upper die holder moves towards lower die holder, compression mould is pressed to lettering punch with the sample to be lettered to complete lettering.According to the lettering mould of the utility model, hard alloy sample identification fast and accurate pad printing can be realized, lettering precision quality is guaranteed, marking wear resistance is enhanced, process is simplified, manpower is reduced, and batch production demand can also be satisfied by fast and continuous operation.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a lettering mold for cemented carbide. Background Technology

[0002] Due to their high hardness and brittleness, cemented carbide samples often have irregular shapes after cutting, which makes direct grinding and polishing inconvenient. Inlay processing can help them form regular shapes to facilitate subsequent processing and inspection.

[0003] In the existing cemented carbide inlay sample preparation, manual engraving is often used. This process is not only complex and labor-intensive, but also inefficient in batch production. Furthermore, the recognition of the engraved characters is affected by differences in operation between different people. In addition, the metallographic sample end face is prone to wear and blurring during sample use, which affects sample identification and subsequent use. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a lettering mold for cemented carbide. According to this invention, the lettering mold can achieve rapid and accurate imprinting of cemented carbide sample markings, ensuring the quality of lettering accuracy, enhancing the wear resistance of the markings, simplifying the process, reducing manpower, and enabling rapid continuous operation to meet the needs of mass production.

[0005] The engraving mold for cemented carbide according to this utility model includes: a lower mold base and an upper mold base, the upper mold base and the lower mold base being connected to each other and spaced apart in the height direction; a guiding mechanism connected between the lower mold base and the upper mold base and adapted to guide the upper mold base to move closer to or away from the lower mold base; an engraving punch disposed on one of the lower mold base and the upper mold base; and a pressing mold disposed on the other of the lower mold base and the upper mold base, the pressing mold and the engraving punch being arranged opposite each other in the relative movement direction of the lower mold base and the upper mold base; wherein, when the upper mold base moves toward the lower mold base, the pressing mold presses the sample to be engraved onto the engraving punch to complete the engraving.

[0006] The lettering mold of this invention achieves lettering through a mechanical structure, simplifying the preparation process, reducing manpower input, and improving the recognizability and durability of the lettering compared to manual lettering. Lettering is completed simply by controlling the movement of the upper mold base, eliminating the need for tedious manual lettering actions. By modularizing the lettering method, multiple samples can be lettered quickly and continuously, meeting the needs of batch production and improving production efficiency.

[0007] According to some embodiments of the present invention, the lower mold base is provided with a support platform, the support platform is formed with a support surface suitable for supporting the sample to be engraved, a fixing groove is formed on the support surface, and the engraving punch is detachably disposed in the fixing groove.

[0008] According to some embodiments of the present invention, a positioning groove is also formed on the bearing surface, the positioning groove extends radially along the fixing groove and communicates with the fixing groove; the engraving mold further includes: a positioning mechanism, the positioning mechanism is disposed in the positioning groove, the positioning mechanism is constructed to have multiple and at least two of the positioning mechanisms disposed on opposite sides of the fixing groove in the radial direction, at least a portion of the positioning mechanism is adapted to move radially along the fixing groove to abut against and position the engraving punch.

[0009] According to some embodiments of the present invention, the positioning mechanism includes: a support member fixedly disposed in the positioning groove; a movable member movably disposed on the support member along the fixed groove radially; and an abutting member disposed at one end of the movable member facing the fixed groove and adapted to abut against the engraving embossing.

[0010] According to some embodiments of the present invention, the abutting member is formed with an abutting surface, and the abutting surface is constructed as an arc-shaped surface suitable for fitting with a portion of the outer peripheral surface of the lettering embossing.

[0011] According to some embodiments of the present invention, the guiding mechanism includes: a first guide member, which extends in the height direction and is disposed on the lower mold base, and the first guide member is configured as a plurality of them, which are spaced apart in the circumferential direction of the support platform; and a second guide member, which extends in the height direction and is disposed on the upper mold base, and the second guide member is configured as a plurality of them, which correspond one-to-one with the plurality of first guide members and are movably connected.

[0012] According to some embodiments of the present invention, one of the first guide member and the second guide member is a guide cylinder, and a guide channel with an open free end is formed inside the guide cylinder; the other of the first guide member and the second guide member is a guide rod, and the guide rod is slidably inserted into the guide channel.

[0013] According to some embodiments of the present invention, the upper mold base has a protruding mold handle formed on the surface opposite to the lower mold base. The mold handle is used to connect with an external power component to drive the upper mold base to move closer to or away from the lower mold base.

[0014] According to some embodiments of the present invention, the central axis of the mold shank coincides with the central axis of the punch.

[0015] According to some embodiments of the present invention, the upper mold base has a first mounting hole extending through in the height direction, and the first mounting hole is configured to be a plurality of holes spaced apart in the circumferential direction of the mold handle; the end of the mold connected to the upper mold base has a positioning plate, and the positioning plate has a second mounting hole, the second mounting hole being a plurality of holes corresponding one-to-one with the plurality of first mounting holes; the engraving mold further includes: a fastener, the fastener being inserted through the first mounting hole and the second mounting hole to fix the mold to the upper mold base.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural schematic diagram of an engraving mold according to an embodiment of the present utility model; Figure 2 This is an exploded view of a lettering mold according to an embodiment of the present invention; Figure 3 This is a structural schematic diagram of the lower mold base, engraving punch, and positioning structure of an engraving mold according to an embodiment of the present utility model; Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle; Figure 5 This is another structural schematic diagram of the lower mold base, engraving punch and positioning structure of the engraving mold according to one embodiment of the present utility model; Figure 6 This is a cross-sectional schematic diagram of the lower mold base and the engraving punch of an engraving mold according to an embodiment of the present utility model; Figure 7 This is a cross-sectional schematic diagram of the upper mold base, the pressing mold, and the fasteners of a lettering mold according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the engraving punch of an engraving mold according to an embodiment of the present utility model.

[0018] Figure label: 1. Engraving mold; 11. Lower mold base; 111. Support platform; 1111. Support surface; 1112. Fixing groove; 1113. Positioning groove; 12. Upper mold base; 121. Mold handle; 122. First mounting hole; 13. Guiding mechanism; 131. First guiding component; 132. Second guiding component. 14. Engraving punch; 15. Press mold; 151. Positioning plate; 152. Second mounting hole; 16. Positioning mechanism; 161. Support component; 162. Moving component; 163. Abutment component; 17. Fasteners. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In the existing cemented carbide inlay sample preparation, manual engraving is often used. This process is not only complex and labor-intensive, but also inefficient in batch production. Furthermore, the recognition of the engraved characters is affected by differences in operation between different people. In addition, the metallographic sample end face is prone to wear and blurring during sample use, which affects sample identification and subsequent use.

[0022] The following is for reference. Figures 1-8 Description of a lettering mold 1 for cemented carbide according to an embodiment of the present invention.

[0023] like Figure 1 , Figure 2 and Figure 8 As shown, the engraving mold 1 of this utility model is used for the preparation of markings on hard alloy inlaid samples. The markings are quickly and accurately made on the sample surface by mechanical imprinting.

[0024] The engraving mold 1 for cemented carbide according to this utility model includes a lower mold base 11, an upper mold base 12, a guide mechanism 13, an engraving punch 14, and a pressing mold 15. The upper mold base 12 and the lower mold base 11 are connected to each other and spaced apart in the height direction, so that a certain space is formed between the upper mold base 12 and the lower mold base 11, providing conditions for placing the sample to be engraved and for the relative movement of the upper mold base 12 and the lower mold base 11.

[0025] The guide mechanism 13 is connected between the lower mold base 11 and the upper mold base 12 and is adapted to guide the upper mold base 12 to move closer to or away from the lower mold base 11. Through the guidance of the guide mechanism 13, the stability and accuracy of the upper mold base 12 during the movement can be ensured, so that the upper mold base 12 can move smoothly in a straight line along the height direction, thereby ensuring the accuracy and quality of the engraving.

[0026] The lettering punch 14 is disposed on one of the lower die base 11 and the upper die base 12 (e.g., the lower die base 11), and is engraved with raised shapes of the text or patterns to be imprinted. When the lettering punch 14 contacts the sample, it can leave corresponding marks on the sample surface. The pressing die 15 is disposed on the other of the lower die base 11 and the upper die base 12 (e.g., the upper die base 12), and is used to press the sample to be engraved. The pressing die 15 and the lettering punch 14 are arranged opposite each other in the relative movement direction of the lower die base 11 and the upper die base 12, so that when the upper die base 12 and the lower die base 11 move relative to each other, the pressing die 15 and the lettering punch 14 can accurately correspond. During the engraving process, the pressing die 15 can accurately transmit force to the sample to be engraved, so that it makes full contact with the lettering punch 14.

[0027] When the upper die base 12 moves toward the lower die base 11, since the pressure die 15 and the engraving punch 14 are positioned opposite each other, the pressure die 15 moves downward along with the upper die base 12, pressing the sample to be engraved, which is placed in the appropriate position, against the engraving punch 14. Under pressure, the pattern or text on the engraving punch 14 is imprinted on the surface of the cemented carbide sample, thus completing the engraving operation. This ensures that the path and force of each imprint are kept as consistent as possible, simplifying the engraving process into a simple stamping action, improving the efficiency of batch production, and ensuring that the font, depth, and format of each mark are exactly the same, making them easy to identify and achieving standardization of the marking operation.

[0028] By using a lettering die 14 to imprint, indentations are formed on the ultra-hard alloy surface. The markings formed by plastic deformation have stronger wear resistance. Even if the surface is worn, as long as the wear depth does not exceed the depth of the indentation, the markings remain clearly legible and can be identified and used for a long time.

[0029] According to the lettering mold 1 of this utility model, the lettering operation is realized through a mechanical structure. Compared with manual lettering, this simplifies the preparation process, reduces manpower input, and improves the recognizability and durability of the lettering. Lettering can be completed simply by controlling the movement of the upper mold base 12, eliminating the need for tedious manual lettering actions. By modularizing the lettering method, multiple samples can be lettered quickly and continuously, meeting the needs of batch production and improving production efficiency.

[0030] Therefore, the engraving mold 1 of this utility model can realize rapid and accurate imprinting of cemented carbide sample markings, ensure the quality of engraving accuracy, enhance the wear resistance of markings, simplify the process, reduce manpower, and can also quickly and continuously operate to meet the needs of mass production.

[0031] According to some embodiments of this utility model, such as Figure 3 , Figure 5 and Figure 6 As shown, the lower mold base 11 is provided with a support platform 111, which has a support surface 1111 suitable for supporting the sample to be engraved. The sample to be engraved can be stably placed on the support surface 1111, ensuring that the sample will not move randomly during the engraving process, thereby ensuring the accuracy and stability of the engraving.

[0032] A fixing groove 1112 is formed on the bearing surface 1111. The fixing groove 1112 is a groove with a certain depth and shape, used to install and fix the engraving punch 14. The shape and size of the fixing groove 1112 match the engraving punch 14, ensuring that the engraving punch 14 can be accurately installed in it, which facilitates the positioning of the engraving punch 14.

[0033] The lettering punch 14 is detachably mounted in the fixing groove 1112, facilitating its replacement. By replacing different lettering punches 14, different markings can be imprinted on the sample, improving the versatility and flexibility of the mold. If different content needs to be engraved, simply remove the lettering punch 14 from the fixing groove 1112 and replace it with a new one.

[0034] During the engraving operation, the engraving punch 14, bearing specific text or patterns, is first installed into the fixing groove 1112 on the bearing surface 1111. Then, the carbide sample to be engraved is placed on the bearing surface 1111 of the bearing platform 111, ensuring the sample is placed stably and accurately. Next, the mold is activated, and the upper mold base 12 moves downward, causing the pressure die 15 to press downward onto the sample. Under pressure, the sample surface contacts the raised portion of the engraving punch 14 and undergoes plastic deformation, thus forming text or patterns corresponding to the engraving punch 14 on the sample surface. After engraving is completed, the upper mold base 12 rises, and the sample is removed.

[0035] According to some embodiments of this utility model, such as Figures 3-6 As shown, a positioning groove 1113 is also formed on the bearing surface 1111. The positioning groove 1113 extends radially along the fixing groove 1112 and communicates with the fixing groove 1112. The positioning groove 1113 provides space for the positioning mechanism 16 to be installed and moved. Its shape can be elongated to facilitate the radial movement of the positioning mechanism 16 within it.

[0036] The engraving mold 1 also includes a positioning mechanism 16, which is disposed within the positioning groove 1113. The positioning mechanism 16 is configured such that at least two positioning mechanisms 16 are arranged on opposite sides of the fixing groove 1112 in the radial direction. At least a portion of the positioning mechanism 16 is adapted to move radially along the fixing groove 1112 to abut against and position the engraving punch 14. The multiple positioning mechanisms 16 work together to apply positioning forces to the engraving punch 14 from different directions, increasing the stability and reliability of the positioning. During the engraving process, even under significant pressure, the engraving punch 14 is less prone to loosening or displacement, ensuring the stability and accuracy of the engraving process. By providing positioning mechanisms 16 on opposite sides of the fixing groove 1112 in the radial direction, and enabling them to move radially to abut against the engraving punch 14, the engraving punch 14 can be adjusted and positioned from two opposite directions, effectively reducing installation errors and improving the positioning accuracy of the engraving punch 14.

[0037] According to some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the positioning mechanism 16 includes a support member 161, a movable member 162, and an abutment member 163. The support member 161 is fixed in the positioning groove 1113. The support member 161 is used to fix and support the movable member 162, ensuring that the movable member 162 can move radially along the fixed groove 1112 on it, while ensuring the positional stability of the entire positioning mechanism 16 in the positioning groove 1113.

[0038] The movable component 162 is radially movably disposed on the support component 161 along the fixed groove 1112, and can move linearly along the radial direction of the fixed groove 1112. By moving the movable component 162, the abutment component 163 can be moved closer to or away from the engraving punch 14 in the fixed groove 1112, thereby realizing the positioning operation of the engraving punch 14.

[0039] The abutment 163 is disposed at one end of the movable member 162 facing the fixed groove 1112 and is adapted to abut against the engraving punch 14. When the movable member 162 moves to the appropriate position, the abutment 163 can directly contact the engraving punch 14 in the fixed groove 1112, and fix the engraving punch 14 in a specific position in the fixed groove 1112 by applying a certain pressure.

[0040] The support member 161 provides stable support and guidance for the moving member 162, enabling the moving member 162 to move accurately radially along the fixed groove 1112, thereby driving the abutment member 163 to abut against the engraving punch 14. This effectively eliminates the positional deviation of the engraving punch 14 during the installation process, improves the positioning accuracy, and ensures the consistency of engraving quality.

[0041] According to some embodiments of this utility model, the support member 161 has a threaded hole that radially extends along the fixed groove 1112, and the movable member 162 passes through the threaded hole and is threadedly engaged with the support member 161. Through this threaded engagement, the movable member 162 can move within the threaded hole of the support member 161. When the movable member 162 is rotated, it can smoothly move forward or backward under the guidance of the thread, thereby precisely controlling the position of the abutment member 163 relative to the center of the fixed groove 1112. The threaded engagement not only simplifies operation but also allows for fine-tuning, ensuring positioning accuracy. It also has a self-locking function, maintaining stability after positioning and preventing positional changes in the movable member 162 during the engraving process.

[0042] According to some embodiments of this utility model, such as Figure 4 As shown, the abutment 163 has an abutment surface, which is constructed as an arc-shaped surface suitable for fitting against a portion of the outer peripheral surface of the lettering punch 14. The shape and size of the arc-shaped surface match the shape and size of the corresponding portion of the outer peripheral surface of the lettering punch 14. When the abutment 163 contacts the lettering punch 14, the two can fit tightly together, making the contact between the abutment 163 and the lettering punch 14 more compact and uniform. Compared with other contact surfaces, the arc-shaped surface can better adapt to the outer peripheral shape of the lettering punch 14, reducing the contact gap and thus providing more stable and reliable support and fixation.

[0043] According to some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the guiding mechanism 13 includes a first guide 131 and a second guide 132. The first guide 131 extends in the height direction and is disposed on the lower mold base 11. Multiple first guides 131 are configured and spaced apart circumferentially on the support platform 111. The multiple first guides 131 distributed around the support platform 111 can constrain and guide the movement of the upper mold base 12 from different directions, enhancing the stability and reliability of the guidance. For example, if the support platform 111 is circular, the first guides 131 are evenly distributed on the circumference; if the support platform 111 is square, they are distributed near the four sides.

[0044] The second guide 132 extends in the height direction and is disposed on the upper mold base 12. The second guide 132 cooperates with the first guide 131 to guide the movement of the upper mold base 12. Multiple second guides 132 are constructed, each corresponding one-to-one with a multiple first guides 131 and movably connected. Therefore, each first guide 131 has a matching second guide 132, and the two cooperate through a movable connection, ensuring that the upper mold base 12 always moves in the correct direction during movement.

[0045] Multiple first guide members 131 are spaced apart around the support platform 111, and multiple second guide members 132 are correspondingly matched with them to constrain and guide the movement of the upper mold base 12 from multiple directions, thereby improving the accuracy and stability of the upper mold base 12 in the height direction.

[0046] According to some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, one of the first guide member 131 and the second guide member 132 is a guide cylinder. A guide channel, open at its free end, is formed within the guide cylinder. This guide channel provides the guide rod with a precise movement trajectory, making the movement of the upper mold base 12 in the height direction more accurate.

[0047] The guide channel is open at the free end of the guide cylinder (i.e., the end furthest from the fixed end), and the guide rod can be inserted into the guide channel from the open opening. For example, the guide cylinder can be a hollow cylinder, and its hollow part is the guide channel, with one end open and the other end connected to the lower mold base 11.

[0048] Another component of the first guide member 131 and the second guide member 132 is a guide rod, which is slidably inserted into the guide channel. Through the sliding engagement between the guide rod and the guide cylinder, it is ensured that the upper mold base 12 can only perform smooth linear movement along the axial direction of the guide channel, that is, the height direction.

[0049] The guide rod is shaped to fit the guide channel so that it can be inserted smoothly. For example, if the guide channel is cylindrical, the guide rod can also be cylindrical with a diameter slightly smaller than that of the guide channel to ensure smooth sliding within the guide channel.

[0050] When the guide rod slides along the guide channel, the relative position between the guide cylinder and the guide rod will change. However, the movement of the guide rod is constrained and guided by the guide channel, which ensures the directional accuracy of both during the movement. This guides the upper mold base 12 to make a smooth linear movement along the height direction, improving the stability and accuracy of the movement of the upper mold base 12.

[0051] According to some embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 7 As shown, a protruding die shank 121 is formed on the surface of the upper die holder 12 facing away from the lower die holder 11. The die shank 121 is used to connect to an external power component to drive the upper die holder 12 to move closer to or away from the lower die holder 11. The die shank 121 is used to connect to the external power component. The external power component can be a drive device such as a punch press, capable of generating sufficient power to drive the upper die holder 12 to move. By connecting the die shank 121 to the external power component, the power of the external power component can be transmitted to the upper die holder 12.

[0052] When the external power component is working, it applies a force to the upper mold base 12 through the mold handle 121. If the external power component provides a downward force, the upper mold base 12 will move closer to the lower mold base 11 under the drive of the mold handle 121; conversely, if the external power component provides an upward force, the upper mold base 12 will move away from the lower mold base 11.

[0053] By connecting the mold handle 121 to an external power component, the external driving force can be smoothly and effectively transmitted to the upper mold base 12, thereby driving the upper mold base 12 to move in the direction defined by the guide mechanism 13.

[0054] According to some embodiments of this utility model, such as Figure 7 As shown, the central axis of the die shank 121 coincides with the central axis of the punch. Therefore, the geometric center line of the die shank 121 and the geometric center line of the punch are on the same straight line, which can ensure that the external driving force is applied accurately along the axial direction of the engraving punch 14, so that the force is transmitted vertically and evenly through the die 15 to the sample to be engraved, and finally acts on the engraving punch 14, ensuring uniform force distribution.

[0055] According to some embodiments of this utility model, such as Figure 2As shown, the upper mold base 12 has a first mounting hole 122 extending through the height direction. The first mounting holes 122 are configured to be multiple and spaced apart around the mold shank 121, which can more evenly distribute the stress generated during connection. At the same time, the multiple first mounting holes 122 can provide a more stable connection and enhance the reliability of the connection between the upper mold base 12 and the mold 15.

[0056] A positioning plate 151 is formed at the end where the mold 15 connects to the upper mold base 12. The positioning plate 151 increases the contact area between the mold 15 and the upper mold base 12, improving the stability of the connection. The positioning plate 151 serves to position and assist in the connection, determining the position of the mold 15 relative to the upper mold base 12, ensuring the accuracy and consistency of their installation. The positioning plate 151 has a second mounting hole 152, which is constructed to correspond one-to-one with multiple first mounting holes 122, so that each first mounting hole 122 has a corresponding second mounting hole 152 to mate with. When connected by fasteners 17, precise alignment can be achieved, further ensuring the stability and accuracy of the connection.

[0057] The lettering mold 1 also includes fasteners 17, which pass through the first mounting hole 122 and the second mounting hole 152 to fix the pressing mold 15 to the upper mold base 12. When the fasteners 17 pass through the corresponding mounting holes and are tightened, a preload is generated, making the upper mold base 12 and the pressing mold 15 tightly connected. During operation, the fasteners 17 can resist various forces on the mold, preventing relative movement or separation between the upper mold base 12 and the pressing mold 15, ensuring the normal operation of the lettering mold 1 and the lettering quality.

[0058] Multiple spaced first mounting holes 122 and corresponding second mounting holes 152, together with fasteners 17, form a multi-point stable connection, which can effectively withstand various loads during mold operation and reduce the risk of connection loosening or failure.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lettering mold for cemented carbide, characterized in that, include: The lower mold base (11) and the upper mold base (12) are connected to each other and spaced apart in the height direction; A guiding mechanism (13) is connected between the lower mold base (11) and the upper mold base (12) and is adapted to guide the upper mold base (12) to move closer to or away from the lower mold base (11); A lettering punch (14) is disposed on one of the lower die base (11) and the upper die base (12); A die (15) is disposed on the other of the lower die base (11) and the upper die base (12), and the die (15) and the engraving punch (14) are disposed opposite each other in the relative movement direction of the lower die base (11) and the upper die base (12); When the upper mold base (12) moves toward the lower mold base (11), the pressure mold (15) presses the sample to be engraved toward the engraving punch (14) to complete the engraving.

2. The engraving mold according to claim 1, characterized in that, The lower mold base (11) is provided with a support platform (111), the support platform (111) is formed with a support surface (1111) suitable for supporting the sample to be engraved, and a fixing groove (1112) is formed on the support surface (1111). The engraving punch (14) is detachably set in the fixing groove (1112).

3. The engraving mold according to claim 2, characterized in that, A positioning groove (1113) is also formed on the bearing surface (1111), the positioning groove (1113) extends radially along the fixing groove (1112) and communicates with the fixing groove (1112); The engraving mold further includes a positioning mechanism (16), which is disposed in the positioning groove (1113). The positioning mechanism (16) is configured as a plurality of, and at least two of, the positioning mechanisms (16) are disposed on opposite sides of the fixing groove (1112) in the radial direction. At least a portion of the positioning mechanism (16) is adapted to move radially along the fixing groove (1112) to abut against and position the engraving punch (14).

4. The engraving mold according to claim 3, characterized in that, The positioning mechanism (16) includes: Support member (161), the support member (161) is fixed in the positioning groove (1113); A movable member (162) is radially movably disposed on the support member (161) along the fixed groove (1112); Abutting member (163) is disposed at one end of the movable member (162) facing the fixed groove (1112) and is adapted to abut against the engraving punch (14).

5. The engraving mold according to claim 4, characterized in that, The abutting member (163) has an abutting surface, which is constructed as an arc-shaped surface suitable for fitting with a portion of the outer peripheral surface of the lettering punch (14).

6. The engraving mold according to claim 2, characterized in that, The guiding mechanism (13) includes: The first guide (131) extends in the height direction and is disposed on the lower mold base (11). The first guide (131) is constructed in multiple ways, and the multiple first guides (131) are spaced apart in the circumferential direction on the support platform (111). The second guide (132) extends in the height direction and is disposed on the upper mold base (12). The second guide (132) is constructed in multiple ways, and the multiple second guides (132) correspond one-to-one with the multiple first guides (131) and are movably connected.

7. The engraving mold according to claim 6, characterized in that, One of the first guide (131) and the second guide (132) is configured as a guide cylinder, and a guide channel with an open free end is formed inside the guide cylinder; Another component of the first guide (131) and the second guide (132) is a guide rod, which is slidably inserted into the guide channel.

8. The engraving mold according to claim 1, characterized in that, The upper mold base (12) has a protruding mold handle (121) formed on the surface opposite to the lower mold base (11). The mold handle (121) is used to connect to an external power component to drive the upper mold base (12) to move closer to or away from the lower mold base (11).

9. The engraving mold according to claim 8, characterized in that, The central axis of the die shank (121) coincides with the central axis of the punch.

10. The engraving mold according to claim 9, characterized in that, The upper mold base (12) is formed with a first mounting hole (122) that extends through in the height direction. The first mounting hole (122) is configured to be a plurality of holes spaced apart in the circumferential direction of the mold handle (121). The end of the mold (15) connected to the upper mold base (12) is provided with a positioning plate (151), and the positioning plate (151) is provided with a second mounting hole (152). The second mounting hole (152) is configured to correspond one-to-one with a plurality of the first mounting holes (122). The engraving mold further includes a fastener (17), which passes through the first mounting hole (122) and the second mounting hole (152) to fix the mold (15) to the upper mold base (12).

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