Carving knife for clay model

Abstract

The utility model discloses a graver for a clay model, which comprises a graver handle, two graver heads are respectively arranged at two ends of the graver handle, each graver head is provided with a graver holder, a heating tube and a heating wire, the graver holders are arranged at the ends of the graver handle, two ends of the heating tube are respectively and fixedly mounted on the graver holders, and the heating wire is wound on the outer side surface of the heating tube. The heating tubes of the two tool bits are different in shape, a PCB is arranged in the tool holder and electrically connected with the heating tubes of the two tool bits, a display screen, a power socket and a plurality of temperature control assemblies are arranged on one side of the tool holder, and the display screen, the power socket and the temperature control assemblies are electrically connected with the PCB. The heating wire is heated through the heating pipe, a heating tool does not need to be used for repeatedly heating the clay model, the texture can be rapidly manufactured through the heating wire, the engraving efficiency is improved, and use is convenient; the two ends of the knife handle are provided with the two knife heads with the heating pipes in different shapes, so that the carving angles can be enriched, the switching speed of the knife heads is increased, and the application range is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of oil clay model shaping tools, in particular to a carving knife used for oil clay models. Background Art

[0002] Oil clay is mainly used for handicrafts, hardware, plastic molds, and student sculptures. It can be recycled and will not deteriorate for a long time. It is sensitive to temperature and can be softened and shaped at a low temperature. The sculptures of models such as handicrafts are extremely plastic. The surface of the oil clay model often needs to be refined with a carving knife to carve out the details. The carving process is slow, and the oil clay used to make details is usually hard. As the modeling time increases, the oil clay will become harder and harder after cooling down, making it impossible to continue carving. Therefore, in the carving process, it is necessary to constantly use a hot air gun or a flame gun to quickly soften the surface of the oil clay, and then use a carving knife to carve after softening. Therefore, in the carving process, it is necessary to constantly switch the heating tool and the carving knife, which is cumbersome to operate and has low carving efficiency. Therefore, it is necessary to improve it. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a carving knife for clay models, which has a built-in heating function, does not require the use of heating tools, is easy to operate, and improves carving efficiency.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a carving knife for oil clay models, including a knife handle, two knife heads are respectively arranged at both ends of the knife handle, and the two knife heads are both provided with a knife seat, a heating tube and a heating wire, the knife seat is arranged at the end of the knife handle, the two ends of the heating tube are respectively fixedly installed on the knife seat, the heating wire is wound around the outer side surface of the heating tube, the shapes of the heating tubes of the two knife heads are different, a PCB board is arranged inside the knife handle, the PCB board is respectively electrically connected to the heating tubes of the two knife heads, a display screen, a power socket and multiple temperature control components are respectively arranged on one side of the knife handle, and the display screen, the power socket and each temperature control component are respectively electrically connected to the PCB board.

[0005] In a further technical solution, two conductive plugs are provided at both ends of the knife handle, and each conductive plug is electrically connected to the PCB board respectively. Two plug holes are provided on the inner side of the knife seat of the corresponding two knife heads, and a conductive socket is provided inside each plug hole respectively. The two ends of the heating tube are electrically connected to the two conductive sockets respectively, and each conductive plug is plugged into and electrically connected to the corresponding conductive socket.

[0006] In a further technical solution, a locking mechanism is respectively provided at both ends of the knife handle, and the locking mechanism includes a return spring and two locking buckles moving towards each other, a buckle portion is provided on the upper part of the locking buckle, a pressing portion is provided on the outer side of the locking buckle, and a locking slide groove is provided at the end of the knife handle. The two locking buckles are respectively slidably installed in the locking slide groove, the buckle portion protrudes from the end of the knife handle, and the pressing portion protrudes from the side of the knife handle. The return spring is arranged in the locking slide groove and abuts against the two locking buckles. Two locking slots are provided at the lower part of the knife seat, and the two locking buckles are respectively connected with the two locking slot buckles.

[0007] In a further technical solution, the heating tube of the first cutter head is an arc-shaped heating tube, and the heating tube of the second cutter head is provided with a first straight line segment, a second straight line segment and a third straight line segment, the first ends of the first straight line segment and the third straight line segment are respectively fixedly installed on the outer side surface of the cutter seat, and the two ends of the second straight line segment are respectively integrally formed with the second ends of the first straight line segment and the third straight line segment.

[0008] In a further technical solution, the first straight line segment and the third straight line segment are respectively arranged to be inclined outward, and the length of the first straight line segment is greater than the length of the third straight line segment.

[0009] In a further technical solution, the PCB board is provided with a control circuit, a power supply circuit and a heating circuit, the power supply circuit is electrically connected to the heating circuit and the control circuit respectively, the power socket is electrically connected to the power supply circuit, the display is electrically connected to the control circuit, the temperature control component includes a low temperature button, a medium temperature button and a high temperature button, the low temperature button, the medium temperature button and the high temperature button are electrically connected to the control circuit respectively, the low temperature button sends a low temperature control signal to the control circuit, the medium temperature button sends a medium temperature control signal to the control circuit, and the high temperature button sends a high temperature control signal to the control circuit.

[0010] In a further technical solution, the heating wire is detachably wound around the heating tube, and both ends of the heating tube are electrically connected to the heating circuit respectively.

[0011] In a further technical solution, a power supply battery is also provided inside the handle, and the power supply battery is electrically connected to the power supply circuit.

[0012] In a further technical solution, the power socket adopts a Type-C socket, the Type-C socket is fixedly installed on the side of the handle, and the Type-C socket is electrically connected to the power supply circuit.

[0013] In a further technical solution, a plurality of anti-slip protrusions are arranged at intervals on both sides of the knife seat.

[0014] After adopting the above structure, the advantages of the utility model compared with the prior art are: the heating wire is heated by the heating tube, so that the clay model can be directly engraved, and there is no need to use a heating tool to repeatedly heat the clay model. The heating wire can quickly produce texture, improve the engraving efficiency, and is more convenient to use; by arranging two blade heads with heating tubes of different shapes at both ends of the blade handle, the engraving angle can be enriched, the switching speed of the blade head can be increased, and the engraving use range can be expanded; the blade head can be detachably installed on the blade handle, which is convenient for replacement and cleaning of the blade head, easy to use, simple structure, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 The utility model Figure 2 A magnified view of part A;

[0019] Figure 4 It is a circuit block diagram of the utility model.

[0020] In the figure:

[0021] 1 knife handle, 11 display screen, 12 power socket, 13 conductive plug, 14 locking slide slot, 15 low temperature button, 16 medium temperature button, 17 high temperature button;

[0022] 2 a blade head, 21 a blade seat, 211 a plug hole, 212 a locking slot, 213 an anti-slip convex portion, 22 a heating tube, 221 a first straight line segment, 222 a second straight line segment, 223 a third straight line segment, 23 a heating wire, 24 a conductive socket;

[0023] 3 locking mechanism, 31 return spring, 32 locking buckle, 321 buckle part, 322 pressing part;

[0024] 41 control circuit, 42 power supply circuit, 43 heating circuit;

[0025] 5 power supply batteries. DETAILED DESCRIPTION

[0026] The following are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention.

[0027] A carving knife for clay models, such as Figures 1 to 4As shown, it includes a knife handle 1, two knife heads 2 are respectively arranged at both ends of the knife handle 1, and the two knife heads 2 are both provided with a knife seat 21, a heating tube 22 and a heating wire 23. The knife seat 21 is arranged at the end of the knife handle 1, and the two ends of the heating tube 22 are respectively fixedly installed on the knife seat 21, and the heating wire 23 is wound around the outer side of the heating tube 22. The shapes of the heating tubes 22 of the two knife heads 2 are different. A PCB board is arranged inside the knife handle 1, and the PCB board is electrically connected to the heating tubes 22 of the two knife heads 2 respectively. A display 11, a power socket 12 and multiple temperature control components are arranged on one side of the knife handle 1, and the display 11, the power socket 12 and each temperature control component are electrically connected to the PCB board respectively.

[0028] Traditional carving knives do not have a heating function, so additional heating tools are needed to repeatedly heat the clay model to soften it, resulting in low carving efficiency and inconvenience in use. The utility model heats the heating wire 23 through the heating tube 22, so that the clay model can be directly carved without using a heating tool to repeatedly heat the clay model. The heating wire 23 can quickly produce textures, improve carving efficiency, and be more convenient to use; by arranging two knife heads 2 with heating tubes 22 of different shapes at both ends of the knife handle 1, it is possible to enrich the carving angle, increase the switching speed of the knife head 2, and expand the use range of carving; the temperature of the heating tube 22 can be adjusted by the temperature control component, and the current temperature of the heating tube 22 is displayed through the display 11, which is convenient to operate.

[0029] Specifically, two conductive plugs 13 are provided at both ends of the knife handle 1, and each conductive plug 13 is electrically connected to the PCB board. Two plug holes 211 are provided on the inner side of the knife seats 21 of the two corresponding knife heads 2, and each plug hole 211 is provided with a conductive socket 24. The two ends of the heating tube 22 are electrically connected to the two conductive sockets 24, and each conductive plug 13 is plugged and matched with the corresponding conductive socket 24 and electrically connected. The heating tube 22 is detachably connected to the PCB board through the conductive socket 24 and the conductive plug 13, so that the knife head 2 can be detachably installed on the knife handle 1, which is convenient for replacing and cleaning the knife head 2, easy to use, simple in structure, and low in cost.

[0030] Specifically, a locking mechanism 3 is respectively provided at both ends of the knife handle 1, and the locking mechanism 3 includes a return spring 31 and two locking buckles 32 moving towards each other. A buckle portion 321 is provided on the upper part of the locking buckle 32, and a pressing portion 322 is provided on the outer side of the locking buckle 32. A locking slide groove 14 is provided at the end of the knife handle 1. The two locking buckles 32 are respectively slidably installed in the locking slide groove 14. The buckle portion 321 protrudes from the end of the knife handle 1, and the pressing portion 322 protrudes from the side of the knife handle 1. The return spring 31 is arranged in the locking slide groove 14 and presses between the two locking buckles 32. Two locking slots 212 are provided at the lower part of the knife seat 21, and the two locking buckles 32 are respectively buckled and connected with the two locking slots 212. The cutter head 2 is further locked and fixed by the locking mechanism 3 to prevent the cutter head 2 from accidentally falling off, thereby improving reliability and stability. When unlocking, the pressing parts 322 of the two locking buckles 32 are pressed to make the two locking buckles 32 move toward each other, thereby separating the buckle part 321 from the locking slot 212, and the cutter head 2 can be disassembled. The two locking buckles 32 are moved outward and reset by the reset spring 31, thereby maintaining the buckle connection between the buckle part 321 and the locking slot 212. The structure is simple and the cost is low.

[0031] Specifically, the heating tube 22 of the first blade head 2 is an arc-shaped heating tube 22, and the heating tube 22 of the second blade head 2 is provided with a first straight segment 221, a second straight segment 222 and a third straight segment 223. The first ends of the first straight segment 221 and the third straight segment 223 are respectively fixedly mounted on the outer side surface of the blade holder 21, and the two ends of the second straight segment 222 are respectively integrally formed with the second ends of the first straight segment 221 and the third straight segment 223. The arc-shaped heating tube 22 can reduce the contact area between the heating tube 22 and the heating wire 23 and the clay model, thereby performing fine carving of a small area, and the heating tube 22 formed by the first straight segment 221, the second straight segment 222 and the third straight segment 223 can increase the contact area between the heating tube 22 and the heating wire 23 and the clay model, thereby performing fine carving of a large area on the plane, and can use the second straight segment 222 and the first straight segment 221 or the third straight segment 223 to perform fine carving of the corners, thereby increasing the carving range.

[0032] Specifically, the first straight segment 221 and the third straight segment 223 are respectively arranged to be inclined outward, and the length of the first straight segment 221 is greater than the length of the third straight segment 223. The second straight segment 222 is arranged to be inclined, so that when holding the handle 1, a better engraving angle is obtained, which is more convenient to use, and the angles of the second straight segment 222 and the first straight segment 221 or the third straight segment 223 are different, so that engraving is convenient for different corners.

[0033] Specifically, the PCB board is provided with a control circuit 41, a power supply circuit 42 and a heating circuit 43. The power supply circuit 42 is electrically connected to the heating circuit 43 and the control circuit 41 respectively. The power socket 12 is electrically connected to the power supply circuit 42. The display 11 is electrically connected to the control circuit 41. The temperature control component includes a low temperature button 15, a medium temperature button 16 and a high temperature button 17. The low temperature button 15, the medium temperature button 16 and the high temperature button 17 are electrically connected to the control circuit 41 respectively. The low temperature button 15 sends a low temperature control signal to the control circuit 41, the medium temperature button 16 sends a medium temperature control signal to the control circuit 41, and the high temperature button 17 sends a high temperature control signal to the control circuit 41. The power supply is connected through the power socket 12, so that the carving knife is provided with power through the power supply circuit 42. When the low temperature button 15 is pressed, the low temperature button 15 sends a low temperature control signal to the control circuit 41, and the control circuit 41 controls the output power of the heating circuit 43, so that the temperature of the two heating tubes 22 reaches 18-22°C; when the medium temperature button 16 is pressed, the medium temperature button 16 sends a medium temperature control signal to the control circuit 41, and the control circuit 41 controls the output power of the heating circuit 43, so that the temperature of the two heating tubes 22 reaches 38-42°C; when the high temperature button 17 is pressed, the high temperature button 17 sends a high temperature control signal to the control circuit 41, and the control circuit 41 controls the output power of the heating circuit 43, so that the temperature of the two heating tubes 22 reaches 58-62°C. The temperature of the two heating tubes 22 is quickly adjusted by the low temperature button 15, the medium temperature button 16 and the high temperature button 17, which is convenient for carving clay models of different hardness, and is easy to use. The maximum temperature of the heating tube 22 does not exceed 65°C, thereby reducing the risk of scalding. When there is oil mud accumulation, it is also convenient to clean up.

[0034] Specifically, the heating wire 23 is detachably wound around the heating tube 22, and both ends of the heating tube 22 are electrically connected to the heating circuit 43. The heating wire 23 can be used to carve out textures. By removing the heating wire 23, it is possible to carve clay models that do not need to be carved out of textures, and it is convenient to adjust the density of the heating wire 23 to make the textures more delicate, and further increase the carving range.

[0035] Specifically, a power supply battery 5 is further arranged inside the knife handle 1, and the power supply battery 5 is electrically connected to the power supply circuit 42. By using the power supply battery 5 as a power source, the mobility of the carving knife is improved, and the use is more convenient.

[0036] Specifically, the power socket 12 is a Type-C socket, which is fixedly mounted on the side of the handle 1 and electrically connected to the power supply circuit 42. The Type-C socket can be applied to a mobile phone charger and is easy to use.

[0037] Specifically, a plurality of anti-skid protrusions 213 are provided at intervals on both sides of the tool holder 21. The anti-skid protrusions 213 facilitate holding the tool head 2 for engraving, and play an anti-skid role when the tool head 2 is disassembled.

[0038] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A carving knife for a clay model, comprising a handle (1), characterized in that: Two blade heads (2) are respectively arranged at the two ends of the blade handle (1), and the two blade heads (2) are both provided with a blade seat (21), a heating tube (22) and a heating wire (23); the blade seat (21) is arranged at the end of the blade handle (1), the two ends of the heating tube (22) are respectively fixedly mounted on the blade seat (21), and the heating wire (23) is wound around the outer side surface of the heating tube (22); the heating tubes (22) of the two blade heads (2) have different shapes; a PCB board is arranged inside the blade handle (1), and the PCB board is respectively electrically connected to the heating tubes (22) of the two blade heads (2); a display (11), a power socket (12) and a plurality of temperature control components are arranged on one side of the blade handle (1); the display (11), the power socket (12) and the temperature control components are respectively electrically connected to the PCB board.

2. A carving knife for clay models according to claim 1, characterized in that: Two conductive plugs (13) are provided at both ends of the knife handle (1), and each conductive plug (13) is electrically connected to the PCB board respectively. Two plug holes (211) are provided on the inner side of the knife seat (21) of the two corresponding knife heads (2), and each plug hole (211) is provided with a conductive socket (24) inside. The two ends of the heating tube (22) are electrically connected to the two conductive sockets (24) respectively, and each conductive plug (13) is plugged into and electrically connected to the corresponding conductive socket (24).

3. A carving knife for clay models according to claim 2, characterized in that: A locking mechanism (3) is also provided at both ends of the knife handle (1), and the locking mechanism (3) comprises a return spring (31) and two locking buckles (32) moving towards each other, a buckle portion (321) is provided at the upper part of the locking buckle (32), and a pressing portion (322) is provided on the outer side of the locking buckle (32), a locking slide groove (14) is provided at the end of the knife handle (1), and the two locking buckles (32) are respectively slidably installed in the locking slide groove (14), the buckle portion (321) protrudes from the end of the knife handle (1), and the pressing portion (322) protrudes from the side of the knife handle (1), the return spring (31) is arranged in the locking slide groove (14) and abuts between the two locking buckles (32), and the lower part of the knife seat (21) is provided with two locking slots (212), and the two locking buckles (32) are respectively buckled and connected with the two locking slots (212).

4. The engraving knife for clay models according to claim 1, characterized in that: The heating tube (22) of the first blade head (2) is an arc-shaped heating tube (22); the heating tube (22) of the second blade head (2) is provided with a first straight line segment (221), a second straight line segment (222) and a third straight line segment (223); the first ends of the first straight line segment (221) and the third straight line segment (223) are respectively fixedly mounted on the outer side surface of the blade seat (21); and the two ends of the second straight line segment (222) are respectively integrally formed with the second ends of the first straight line segment (221) and the third straight line segment (223).

5. A carving knife for clay models according to claim 4, characterized in that: The first straight line segment (221) and the third straight line segment (223) are respectively arranged to be inclined outwards, and the length of the first straight line segment (221) is greater than the length of the third straight line segment (223).

6. A carving knife for clay models according to any one of claims 1 to 5, characterized in that: The PCB board is provided with a control circuit (41), a power supply circuit (42) and a heating circuit (43); the power supply circuit (42) is electrically connected to the heating circuit (43) and the control circuit (41) respectively; the power socket (12) is electrically connected to the power supply circuit (42); the display (11) is electrically connected to the control circuit (41); the temperature control component comprises a low temperature button (15), a medium temperature button (16) and a high temperature button (17); the low temperature button (15), the medium temperature button (16) and the high temperature button (17) are electrically connected to the control circuit (41) respectively; the low temperature button (15) sends a low temperature control signal to the control circuit (41); the medium temperature button (16) sends a medium temperature control signal to the control circuit (41); and the high temperature button (17) sends a high temperature control signal to the control circuit (41).

7. A carving knife for clay models according to claim 6, characterized in that: The heating wire (23) is detachably wound around the heating tube (22), and both ends of the heating tube (22) are electrically connected to the heating circuit (43) respectively.

8. The engraving knife for clay models according to claim 6, characterized in that: A power supply battery (5) is also provided inside the knife handle (1), and the power supply battery (5) is electrically connected to the power supply circuit (42).

9. The engraving knife for clay models according to claim 6, characterized in that: The power socket (12) is a Type-C socket, which is fixedly mounted on the side of the knife handle (1) and is electrically connected to the power supply circuit (42).

10. The carving knife for clay models according to claim 6, characterized in that: A plurality of anti-slip convex portions (213) are arranged at intervals on both sides of the knife seat (21).

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