Silicon carbon rod fixing assembly and hot bending machine

Abstract

The present application relates to a silicon carbon rod fixing assembly and a hot bending machine, wherein the silicon carbon rod fixing assembly includes: a connecting structure, a conductive structure and a fixing structure. The connecting structure includes a connecting piece. The conductive structure includes a conductive clamp. The fixing structure includes a first fixing block and a second fixing block, the first fixing block and the second fixing block are both connected to the connecting piece, the first fixing block has a first mounting hole, the second fixing block has a second mounting hole, the silicon carbon rod is inserted into the first mounting hole and the second mounting hole, the diameters of the first mounting hole and the second mounting hole are both larger than the diameter of the silicon carbon rod, and the conductive clamp and the silicon carbon rod cooperate. The technical solution of the present application effectively solves the problem in the prior art that the silicon carbon rod is easily squeezed with the fixing structure and cracked in a high temperature environment.

Description

Technical Field

[0001] The present application relates to the technical field of silicon carbon rod heating elements, and in particular to a silicon carbon rod fixing assembly and a hot bending machine. Background Art

[0002] In a hot bending machine, a silicon carbon rod is usually used as a heating element. The silicon carbon rod is set in the hot bending chamber of the hot bending machine and installed using a ceramic clamp block. A high temperature resistant wire is set in the mounting hole of the ceramic clamp block. The silicon carbon rod is inserted into the mounting hole of the ceramic clamp block to support the silicon carbon rod. At this time, the high temperature resistant wire and the silicon carbon rod are pressed and contacted to achieve the effect of power supply. However, during use, the silicon carbon rod will be deformed by heat and easily squeezed and broken under the action of the ceramic clamp block. If it is not pressed tightly, the silicon carbon rod and the high temperature resistant wire will not be in sufficient contact.

[0003] In the existing device (for example: the authorization announcement number is: CN211128228U, the application name is: A connection structure for U-shaped silicon carbon rods), a connection structure is set to support the silicon carbon rod, and the connection structure includes a stainless steel pin, a pin hole, an insulating block and a mounting plate. A pin hole is provided at the same position of the heating zone of two equal-diameter silicon carbon rods of the U-shaped silicon carbon rod; the stainless steel pin passes through the pin hole and is connected to the U-shaped silicon carbon rod; an insulating block is respectively sleeved on the two equal-diameter silicon carbon rods of the U-shaped silicon carbon rod, and the stainless steel pin is fixed on the top of the insulating block; grooves are provided around the insulating block, and the mounting plate is snapped into the grooves; the mounting plate is connected to the inner wall of the hot bending chamber to fix the silicon carbon rod. However, in long-term use, the silicon carbon rod is easily expanded in a high temperature environment, and it will collide with the stainless steel pin and then break. Utility Model Content

[0004] The present application provides a silicon carbon rod fixing assembly and a hot bending machine to solve the problem in the prior art that the silicon carbon rod is easily squeezed by the fixing structure and cracked in a high temperature environment.

[0005] A silicon carbon rod fixing assembly provided in the present application includes: a connection structure, a conductive structure and a fixing structure. The connection structure includes a connector. The conductive structure includes a conductive clamp. The fixing structure includes a first fixing block and a second fixing block, the first fixing block and the second fixing block are both connected to the connector, the first fixing block has a first mounting hole, the second fixing block has a second mounting hole, the silicon carbon rod is inserted into the first mounting hole and the second mounting hole, the diameter of the first mounting hole and the second mounting hole are both larger than the diameter of the silicon carbon rod, and the conductive clamp and the silicon carbon rod cooperate.

[0006] In some embodiments, the conductive clamp has a clamping section, a first abutting section and a second abutting section, the clamping section is an arc-shaped plate, the first abutting section is connected to the first end of the clamping section, and the second abutting section is connected to the second end of the clamping section. The conductive clamp has a clamping state in which the first abutting section and the second abutting section are close to each other, or a relaxed state in which the first abutting section and the second abutting section are away from each other.

[0007] In some embodiments, the first abutting section has a first through hole, the second abutting section has a second through hole, the first through hole and the second through hole are arranged correspondingly, the conductive clamp includes a limit screw and a limit nut, the limit screw has a smooth rod section and a threaded section, the diameter of the smooth rod section is larger than the diameter of the threaded section, the circumferential surface of the threaded section is provided with an external thread, and the limit nut has an internal thread matching the external thread.

[0008] In some embodiments, the threaded section is sequentially passed through the first through hole and the second through hole, and then screwed with the limiting nut. In the clamped state, the first abutting section abuts against the bare rod section, and the second abutting section abuts against the limiting nut.

[0009] In some embodiments, the conductive structure further includes a high temperature resistant wire, and the high temperature resistant wire is connected to the outer wall of the clamping section.

[0010] In some embodiments, there are multiple groups of first mounting holes, and there are multiple groups of second mounting holes, and the multiple groups of first mounting holes and the multiple groups of second mounting holes are arranged in a one-to-one correspondence.

[0011] In some embodiments, the first fixing block has a first fixing through hole, the second fixing block has a second fixing through hole, and the connecting member includes a plurality of matching holes, and the plurality of matching holes are arranged in one-to-one correspondence with the first fixing through hole and the second fixing through hole.

[0012] In some embodiments, the connecting structure also includes a first connecting screw, a second connecting screw, a first connecting nut and a second connecting nut. The first connecting screw is passed through the first fixing through hole and the corresponding matching hole, and is screwed with the first connecting nut. The second connecting screw is passed through the second fixing through hole and the corresponding matching hole, and is screwed with the second connecting nut.

[0013] The present application also provides a hot bending machine, which includes a silicon carbon rod fixing assembly.

[0014] In some embodiments, the heat bending machine further includes a heat bending chamber having a containing space, and the silicon carbon rod fixing assembly is disposed in the heat bending chamber.

[0015] Applying the technical solution of the present application, the silicon carbon rod fixing assembly includes a connecting structure, a conductive structure and a fixing structure. The fixing structure includes a first fixing block and a second fixing block, the first fixing block and the second fixing block are both connected to the connecting piece, the first fixing block has a first mounting hole, the second fixing block has a second mounting hole, the silicon carbon rod is inserted into the first mounting hole and the second mounting hole, the diameters of the first mounting hole and the second mounting hole are both larger than the diameters of the silicon carbon rod, that is, the first fixing block and the second fixing block only play a supporting role, and the silicon carbon rod and the first mounting hole and the second mounting hole are spaced apart, so the silicon carbon rod will not be squeezed and broken with the first mounting hole and the second mounting hole after it expands due to heat. The conductive clamp and the silicon carbon rod cooperate to achieve power supply. The technical solution of the present application effectively solves the problem in the prior art that the silicon carbon rod is easily squeezed and broken with the fixed structure under high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A structural schematic diagram showing a fixing structure of an embodiment of the present application is shown;

[0019] Figure 2 A schematic diagram of the main structure of the first fixing block in an embodiment of the present application is shown;

[0020] Figure 3 A schematic diagram of the top view of the first fixing block in an embodiment of the present application is shown;

[0021] Figure 4 A schematic structural diagram of a conductive structure according to an embodiment of the present application is shown;

[0022] Figure 5 A schematic diagram showing the structure of a silicon carbon rod according to an embodiment of the present application is shown;

[0023] Figure 6 A structural schematic diagram of the connection structure of an embodiment of the present application is shown.

[0024] The above drawings include the following reference numerals:

[0025] 10. Connecting structure; 11. Connecting piece; 20. Conductive structure; 21. Conductive clamp; 211. Clamping section; 212. First abutting section; 213. Second abutting section; 214. Limiting screw; 215. Limiting nut; 22. High temperature resistant wire; 30. Fixing structure; 31. First fixing block; 311. First mounting hole; 312. First fixing through hole; 32. Second fixing block; 100. Silicon carbon rod. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0029] like Figures 1 to 6 As shown, the embodiment relates to a silicon carbon rod fixing assembly, including: a connection structure 10, a conductive structure 20 and a fixing structure 30. The connection structure 10 includes a connecting member 11. The conductive structure 20 includes a conductive clamp 21. The fixing structure 30 includes a first fixing block 31 and a second fixing block 32, the first fixing block 31 and the second fixing block 32 are both connected to the connecting member 11, the first fixing block 31 has a first mounting hole 311, the second fixing block 32 has a second mounting hole, the silicon carbon rod 100 is inserted into the first mounting hole 311 and the second mounting hole, the diameters of the first mounting hole 311 and the second mounting hole are both larger than the diameter of the silicon carbon rod 100, and the conductive clamp 21 and the silicon carbon rod 100 are matched.

[0030] Applying the technical solution of this embodiment, the silicon carbon rod fixing assembly includes a connecting structure 10, a conductive structure 20 and a fixing structure 30. The fixing structure 30 includes a first fixing block 31 and a second fixing block 32, both of which are connected to the connecting piece 11, the first fixing block 31 has a first mounting hole 311, and the second fixing block 32 has a second mounting hole, the silicon carbon rod 100 is inserted into the first mounting hole 311 and the second mounting hole, and the diameters of the first mounting hole 311 and the second mounting hole are both larger than the diameter of the silicon carbon rod 100, that is, the first fixing block 31 and the second fixing block 32 only play a supporting role, and the silicon carbon rod 100 and the first mounting hole 311 and the second mounting hole are spaced apart, so the silicon carbon rod 100 will not be squeezed and broken with the first mounting hole and the second mounting hole after being heated and expanded. The conductive clamp 21 and the silicon carbon rod 100 cooperate to realize power supply. The technical solution of this embodiment effectively solves the problem in the prior art that the silicon carbon rod 100 is easily squeezed and broken with the fixing structure 30 under high temperature environment.

[0031] It should be noted that the spacing distance between the silicon carbon rod 100 and the first mounting hole 311 and the second mounting hole is the expansion margin, the conductive clamp 21 is set at the cold end, and the silicon carbon rod 100 can be a three-phase rod. After the conductive clamp 21 and the silicon carbon rod 100 are clamped, the silicon carbon rod 100 will not fall out of the first mounting hole 311 and the second mounting hole.

[0032] like Figure 4 As shown, in some embodiments, the conductive clamp 21 has a clamping section 211, a first abutting section 212 and a second abutting section 213. The clamping section 211 is an arc-shaped plate that can better fit the circumferential surface of the silicon carbon rod 100. The first abutting section 212 is connected to the first end of the clamping section 211, and the second abutting section 213 is connected to the second end of the clamping section 211. The conductive clamp 21 has a clamping state in which the first abutting section 212 and the second abutting section 213 are close to each other, or a relaxed state in which the first abutting section 212 and the second abutting section 213 are away from each other.

[0033] like Figure 4As shown, in some embodiments, the first abutting section 212 has a first through hole, the second abutting section 213 has a second through hole, the first through hole and the second through hole are arranged correspondingly, the conductive clamp 21 includes a limit screw 214 and a limit nut 215, the limit screw 214 has a bare rod section and a threaded section, the diameter of the bare rod section is greater than the diameter of the threaded section, the circumferential surface of the threaded section is provided with an external thread, and the limit nut 215 has an internal thread that matches the external thread. The threaded section is sequentially inserted into the first through hole and the second through hole, and then screwed with the limit nut 215. In the clamped state, the first abutting section 212 abuts against the bare rod section, and the second abutting section 213 abuts against the limit nut 215. The conductive structure 20 also includes a high temperature resistant wire 22, which is connected to the outer wall of the clamping section 211. The conductive clamp 21 is made of stainless steel and is welded to the high temperature resistant wire 22 . To avoid potential safety hazards caused by leakage of the high temperature resistant wire 22 , ceramic beads are inserted on the outer circumferential side of the high temperature resistant wire 22 .

[0034] like Figure 2 As shown, in some embodiments, there are multiple groups of first mounting holes 311 and multiple groups of second mounting holes, and the multiple groups of first mounting holes 311 and the multiple groups of second mounting holes are arranged in a one-to-one correspondence.

[0035] like Figure 2 and Figure 3 As shown, in some embodiments, the first fixing block 31 has a first fixing through hole 312, the second fixing block 32 has a second fixing through hole, and the connecting member 11 includes a plurality of matching holes, and the plurality of matching holes are arranged in a one-to-one correspondence with the first fixing through hole 312 and the second fixing through hole. The first fixing through hole 312 is located between adjacent first mounting holes 311, and the second fixing through hole is located between adjacent second mounting holes. The connecting structure 10 also includes a first connecting screw, a second connecting screw, a first connecting nut, and a second connecting nut. The first connecting screw is passed through the first fixing through hole 312 and the matching hole corresponding thereto, and is screwed with the first connecting nut. The second connecting screw is passed through the second fixing through hole and the matching hole corresponding thereto, and is screwed with the second connecting nut to connect the first fixing block 31 and the second fixing block 32 to the connecting member 11.

[0036] The present embodiment also relates to a heat bending machine, which includes a silicon carbon rod fixing assembly. The heat bending machine also includes a heat bending chamber, the heat bending chamber has a containing space, and the silicon carbon rod fixing assembly is arranged in the heat bending chamber. The connecting piece 11 is connected to the inner wall of the heat bending chamber, and the heat bending machine also includes a mold, and the product to be processed is placed between the mold and the silicon carbon rod 100, and the silicon carbon rod 100 is heated to maintain a high temperature environment.

[0037] From the above, it can be known that the installation of this Shanxing silicon carbon rod 100 is relatively simple, because the diameter of the Shanxing silicon carbon rod 100 is designed to be 14mm, and the installation holes of the installation blocks (the first fixing block 31 and the second fixing block 32) are 15mm, so there is no situation where the installation cannot be performed due to the size being too tight, and during the heat and expansion of the silicon carbon rod 100, it will not be broken due to excessive squeezing and lack of expansion margin. Just prepare two ceramic mounting blocks, place them on both sides of the installation position, and then insert the silicon carbon rod 100 into them. Because one end of the Shanxing silicon carbon rod 100 is already connected together, when threading the wires and connecting the electricity, you only need to connect three three-terminal electrical connections to the aluminum spray part on the other side.

[0038] Wiring: Through experiments, it is found that for the sake of safety and equipment cleanliness, the wires must be bare in the chamber, and in order to avoid contact between bare wires or other conductive parts, which may lead to leakage, sparking or short circuit accidents, high temperature resistant and strong ceramic beads must be put between bare wires for insulation (an insulating layer is provided on the outer side of the bare wire). The connection between the wire and the silicon carbon rod 100 can be achieved by welding the wire to a stainless steel clamp (conductive clamp 21), and then clamping the silicon carbon rod 100 with the stainless steel clamp to energize it.

[0039] Control: Use the power regulator to control the heating power of the silicon carbon rod 100. Because each phase line inside the power regulator has a 100A fuse, the entire power system does not need to add a fuse, and the power adjustment of the regulator is controlled by analog quantity. In order to facilitate control, a PLC with analog quantity control and a touch screen are installed. The touch screen communicates with the PLC through the network port. The output frequency of the regulator is controlled by inputting the power value to be output on the touch screen, thereby achieving the control effect (if the touch screen cannot communicate directly with the PLC, a serial port converter can be added to solve the communication problem).

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A silicon carbon rod fixing assembly, characterized in that: include: A connecting structure (10), wherein the connecting structure (10) comprises a connecting member (11); A conductive structure (20), the conductive structure (20) comprising a conductive clamp (21); A fixing structure (30), the fixing structure (30) comprising a first fixing block (31) and a second fixing block (32), the first fixing block (31) and the second fixing block (32) being connected to the connecting member (11), the first fixing block (31) having a first mounting hole (311), the second fixing block (32) having a second mounting hole, the silicon carbon rod being inserted into the first mounting hole (311) and the second mounting hole, the diameters of the first mounting hole (311) and the second mounting hole being larger than the diameter of the silicon carbon rod, and the conductive clamp (21) and the silicon carbon rod being matched.

2. The silicon carbon rod fixing assembly according to claim 1, characterized in that: The conductive clamp (21) comprises a clamping section (211), a first abutting section (212) and a second abutting section (213); the clamping section (211) is an arc-shaped plate; the first abutting section (212) is connected to a first end of the clamping section (211); the second abutting section (213) is connected to a second end of the clamping section (211); the conductive clamp (21) has a clamping state in which the first abutting section (212) and the second abutting section (213) are close to each other, or a relaxed state in which the first abutting section (212) and the second abutting section (213) are away from each other.

3. The silicon carbon rod fixing assembly according to claim 2, characterized in that: The first abutting section (212) has a first through hole, and the second abutting section (213) has a second through hole, and the first through hole and the second through hole are arranged correspondingly, and the conductive clamp (21) includes a limit screw (214) and a limit nut (215), and the limit screw (214) has a smooth rod section and a threaded section, the diameter of the smooth rod section is larger than the diameter of the threaded section, and the circumferential surface of the threaded section is provided with an external thread, and the limit nut (215) has an internal thread matching the external thread.

4. The silicon carbon rod fixing assembly according to claim 3, characterized in that: The threaded section is sequentially inserted into the first through hole and the second through hole, and then screwed together with the limiting nut (215). In the clamped state, the first abutting section (212) abuts against the bare rod section, and the second abutting section (213) abuts against the limiting nut (215).

5. The silicon carbon rod fixing assembly according to claim 2, characterized in that: The conductive structure (20) further comprises a high temperature resistant wire (22), wherein the high temperature resistant wire (22) is connected to the outer wall of the clamping section (211).

6. The silicon carbon rod fixing assembly according to claim 1, characterized in that: The first mounting holes (311) have multiple groups, the second mounting holes have multiple groups, and the multiple groups of the first mounting holes (311) and the multiple groups of the second mounting holes are arranged in a one-to-one correspondence.

7. The silicon carbon rod fixing assembly according to claim 1, characterized in that: The first fixing block (31) has a first fixing through hole (312), the second fixing block (32) has a second fixing through hole, and the connecting member (11) includes a plurality of matching holes, and the plurality of matching holes are arranged in a one-to-one correspondence with the first fixing through hole (312) and the second fixing through hole.

8. The silicon carbon rod fixing assembly according to claim 7, characterized in that: The connection structure (10) also includes a first connecting screw, a second connecting screw, a first connecting nut and a second connecting nut, the first connecting screw being inserted into the first fixing through hole (312) and the corresponding matching hole, and being screwed together with the first connecting nut, the second connecting screw being inserted into the second fixing through hole and the corresponding matching hole, and being screwed together with the second connecting nut.

9. A hot bending machine, characterized in that: The hot bending machine comprises a silicon carbon rod fixing assembly, and the silicon carbon rod fixing assembly is the silicon carbon rod fixing assembly according to any one of claims 1 to 8.

10. The hot bending machine according to claim 9, characterized in that: The heat bending machine also includes a heat bending chamber, the heat bending chamber has a containing space, and the silicon carbon rod fixing assembly is arranged in the heat bending chamber.

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