A multi-tube resistance furnace for carbon nanotube film production

Abstract

The utility model relates to the field of resistance furnaces, and discloses a multi-tube resistance furnace for the production of carbon nanotube films, including a resistance furnace, an upper cover is installed at the top of the resistance furnace, a rotating assembly is installed at the top of the upper cover, a fixing assembly is plugged into the top of the resistance furnace, a heating tube is installed on the inner wall of the fixing assembly, a limiting assembly is installed at the left end of the resistance furnace, the fixing assembly includes a sleeve, a positioning ring is provided on the outer wall of the sleeve, a positioning groove is provided at the bottom end of the upper cover, the positioning ring and the positioning groove are matched, a positioning groove is also provided at the top of the resistance furnace, and a fixing block is plugged into the inner wall of the sleeve. In the utility model, by setting a fixing assembly, multiple groups of heating tubes can be fixed at one time, and the rotating assembly can be used to drive the fixing assembly to rotate, so as to ensure that the materials inside the multiple groups of heating tubes can be evenly heated. Since multiple groups of materials can be heated at one time, the heating efficiency is high when in use.

Description

Technical Field

[0001] The utility model relates to the field of resistance furnaces, in particular to a multi-tube resistance furnace used for the production of carbon nanotube films. Background Art

[0002] A tubular resistance furnace is a device that uses the principle of resistance heating to heat materials. The device can convert electricity into thermal energy to generate high temperatures to heat the materials in the tube. In the process of producing carbon nanotube films, a tubular resistance furnace is needed to heat the raw materials. The raw materials are melted by heating, and then the materials can be processed subsequently.

[0003] Existing tubular resistance furnaces are usually only equipped with a single tube, and can only heat one material at a time. However, in the process of carbon nanotube film production, it is often necessary to heat three types of materials, solid, liquid, and gas, at the same time. Existing tubular induction cookers can often only heat one material at a time, and the heating efficiency is low when in use. Therefore, a multi-tube resistance furnace for carbon nanotube film production is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a multi-tube resistance furnace for carbon nanotube film production, aiming to improve the problem in the prior art that "the existing tube resistance furnace can only heat one material at a time when in use, and the heating efficiency is low".

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-tube resistance furnace for the production of carbon nanotube films, including a resistance furnace, an upper cover is installed on the top of the resistance furnace, a rotating component is installed on the top of the upper cover, a fixing component is plugged into the top of the resistance furnace, a heating tube is installed on the inner wall of the fixing component, a limiting component is installed on the left end of the resistance furnace, the fixing component includes a sleeve, a positioning ring is provided on the outer wall of the sleeve, a positioning groove is provided on the bottom end of the upper cover, the positioning ring and the positioning groove are matched, the top of the resistance furnace is also provided with a positioning groove, a fixing block is plugged into the inner wall of the sleeve, and the heating tube is plugged into the inner wall of the fixing block.

[0006] As a further description of the above technical solution:

[0007] The limiting assembly includes a storage box, the right end of which is fixedly connected to the left end of the resistance furnace, the left end of the storage box is penetrated by and slidably connected to a support rod, the right end of the support rod is rotatably connected to a cross bracket, the right end of the cross bracket is fixedly connected to a cover, and the cover is sleeved on the left end of the heating tube.

[0008] As a further description of the above technical solution:

[0009] The limit assembly also includes a limit block, which passes through and is slidably connected to the rear end of the storage box. The rear end of the support rod is provided with a limit slot, which is adapted to the limit slot and the limit block. The rear end of the limit block is fixedly connected with a pull rod, which passes through and is slidably connected to the rear end of the storage box.

[0010] As a further description of the above technical solution:

[0011] The rear end of the limit block is fixedly connected to the limit spring, the rear end of the limit spring is fixedly connected to the inner wall of the storage box, the left end of the support rod is fixedly connected to the return spring, and the left end of the return spring is fixedly connected to the inner wall of the storage box.

[0012] As a further description of the above technical solution:

[0013] The rear end of the pull rod is fixedly connected to a connecting rod, and multiple groups of the limit assemblies are provided. The multiple groups of the limit assemblies are symmetrically arranged with the center line of the resistance furnace as the symmetry axis, and the rear end of another group of the pull rods is also fixedly connected to the front end of the connecting rod.

[0014] As a further description of the above technical solution:

[0015] The rotating assembly includes a double-headed motor, the bottom end of which is mounted on the top of the upper cover, the left end of which is fixedly connected to a driving wheel, the outer wall of the sleeve is fixedly connected to a passive wheel, and the driving wheel and the passive wheel are meshed with each other.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the sleeve is provided with a clamping block, the outer wall of the fixing block is provided with a clamping groove, and the clamping block and the clamping groove are adapted to each other.

[0018] As a further description of the above technical solution:

[0019] A protrusion is provided at the front end of the fixed block, and a groove is provided at the front end of the fixed block near the right end of the protrusion. The protrusion and the groove are adapted to each other. Multiple groups of fixed blocks and heating tubes are provided, and the multiple groups of fixed blocks and heating tubes are arranged in a row and rotated with the center line axis of the sleeve as the rotation axis.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by setting a fixed component, multiple groups of heating tubes can be fixed at one time, and the rotating component can be used to drive the fixed component to rotate to ensure that the materials inside the multiple groups of heating tubes can be heated evenly. Since multiple groups of materials can be heated at one time, the heating efficiency is higher during use.

[0022] 2. In the present invention, the heating tube is fixed by using a limiting assembly to prevent it from shifting during the heating process, thereby preventing the internal material from flowing freely after being heated and melted, and the overall device has better stability during heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the overall device of the utility model in an open state;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure disassembly of the fixing component in the utility model;

[0026] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the limiting component in the utility model.

[0027] Legend:

[0028] 1. Resistance furnace; 2. Upper cover; 3. Rotating assembly; 31. Double-headed motor; 32. Driving wheel; 33. Passive wheel; 4. Fixed assembly; 41. Sleeve; 42. Positioning ring; 43. Positioning groove; 44. Fixed block; 45. Block; 46. Slot; 47. Bump; 48. Groove; 5. Limiting assembly; 51. Storage box; 52. Support rod; 53. Cross bracket; 54. Cover; 55. Limiting block; 56. Pull rod; 57. Limiting spring; 58. Limiting groove; 59. Connecting rod; 510. Reset spring; 6. Heating tube. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 - Figure 3The utility model provides an embodiment: a multi-tube resistance furnace for the production of carbon nanotube films, including a resistance furnace 1 for heating a heating tube 6, a top cover 2 for cooperating with the resistance furnace 1 is installed on the top of the resistance furnace 1, the resistance furnace 1 is a prior art, and can start working when the power is turned on, and the top cover 2 is an inherent component of the resistance furnace 1. Due to the prior art, this case will not be described in detail, a rotating component 3 for driving a fixed component 4 to rotate is installed on the top of the top cover 2, a fixed component 4 for fixing multiple groups of heating tubes 6 at a time is plugged into the top of the resistance furnace 1, the inner wall of the fixed component 4 is installed with a heating tube 6 for holding a material to be heated, and a limit component 5 for fixing both ends of the heating tube 6 is installed on the left end of the resistance furnace 1 The fixing assembly 4 includes a sleeve 41 for fixing the fixing block 44 so that it will not fall apart. The outer wall of the sleeve 41 is provided with a positioning ring 42 for fixing the sleeve 41. The bottom end of the upper cover 2 is provided with a positioning groove 43 for accommodating the positioning ring 42. The positioning ring 42 and the positioning groove 43 are adapted to each other, and the positioning ring 42 can rotate inside the positioning groove 43. By inserting the positioning ring 42 into the positioning groove 43, the sleeve 41 can be fixed in the middle position of the resistance furnace 1, so that the best heating effect can be achieved, and the sleeve 41 can also be prevented from shifting left and right during the heating process. The top of the resistance furnace 1 is also provided with a positioning groove 43. The inner wall of the sleeve 41 is plugged with a fixing block 44 for fixing the heating tube 6, and the heating tube 6 is plugged into the inner wall of the fixing block 44.

[0031] Reference Figure 2 - Figure 4 The limiting assembly 5 includes a storage box 51 for accommodating a support rod 52. The right end of the storage box 51 is fixedly connected to the left end of the resistance furnace 1. The left end of the storage box 51 penetrates and is slidably connected with a support rod 52 for driving a cross bracket 53 to move. The right end of the support rod 52 is rotatably connected with a cross bracket 53 for driving a cover 54 to move. The right end of the cross bracket 53 is fixedly connected with a cover 54 for directly contacting the heating tube 6. The cross bracket 53 can be driven to move by moving the support rod 52, and the cross bracket 53 will drive the cover 54 to move and cover one end of the heating tube 6. The cover 54 is sleeved on the left end of the heating tube 6. The limiting assembly 5 also includes a support rod 52 for fixing. The limit block 55 of the support rod 52 passes through and is slidably connected to the rear end of the storage box 51. The rear end of the support rod 52 is provided with a limit groove 58 for accommodating the limit block 55. The limit groove 58 is adapted to the limit block 55. The left end of the limit block 55 is set as an inclined surface. When the inclined surface is squeezed, the limit block 55 will move backward. When the limit block 55 is inserted into the inner part of the limit groove 58, the support rod 52 will be fixed and cannot move left and right. The rear end of the limit block 55 is fixedly connected with a pull rod 56 for driving the limit block 55 to move backward. The pull rod 56 passes through and is slidably connected to the rear end of the storage box 51. The limit block 55 can be driven to move backward by pulling the pull rod 56.

[0032] Reference Figure 1 - Figure 3 The rear end of the limit block 55 is fixedly connected with a limit spring 57 for pushing the limit block 55 forward. The rear end of the limit spring 57 is fixedly connected to the inner wall of the storage box 51. The limit spring 57 will always push the limit block 55 forward to make it move forward. The left end of the support rod 52 is fixedly connected with a return spring 510 for driving the support rod 52 to move outward and reset. The left end of the return spring 510 is fixedly connected to the inner wall of the storage box 51. When the support rod 52 is not fixed, the return spring 510 will push the support rod 52 outward to move outward and reset. The rear end of the pull rod 56 is fixedly connected with a connecting rod 59 for driving the pull rod 56 to move backward. The limit assembly 5 is provided with multiple groups, and the multiple groups of limit assemblies 5 are symmetrically arranged with the center line of the resistance furnace 1 as the symmetry axis. The rear end of the other group of pull rods 56 is also fixedly connected to the front end of the connecting rod 59. By pulling the connecting rod 59 backward, the two groups of pull rods 56 can be driven to move backward at the same time.

[0033] Reference Figure 1 - Figure 3 The rotating assembly 3 includes a double-headed motor 31 for driving the driving wheel 32 to rotate. The bottom end of the double-headed motor 31 is installed on the top of the upper cover 2. When the upper cover 2 rotates, the double-headed motor 31 will be driven to move synchronously. The left end of the double-headed motor 31 is fixedly connected with a driving wheel 32 for driving the passive wheel 33 to rotate. The outer wall of the sleeve 41 is fixedly connected with a passive wheel 33 for driving the sleeve 41 to rotate. The driving wheel 32 and the passive wheel 33 are meshed with each other. Starting the double-headed motor 31 can drive the driving wheel 32 to rotate. The rotation of the driving wheel 32 will drive the passive wheel 33 to rotate. The rotation of the passive wheel 33 will drive the sleeve 41 to rotate. The inner wall of the sleeve 41 is provided with a block 45 for fixing the fixing block 44. The outer wall of the fixing block 44 is provided with a slot 46 for accommodating the block 45. The block 45 and the slot 46 are adapted. When the block 45 is inserted into the inside of the slot 46, the fixing block 44 will not be able to rotate relative to the sleeve 41.

[0034] Reference Figure 1 - Figure 3 A protrusion 47 for connecting multiple groups of fixing blocks 44 is provided at the front end of the fixing block 44, and a groove 48 for accommodating the protrusion 47 is provided at the front end of the fixing block 44 near the right end of the protrusion 47. The protrusion 47 and the groove 48 are adapted to each other. The fixing blocks 44 can be connected in pairs by using the protrusion 47 and the groove 48, and then the two-connected fixing blocks 44 can be connected together. Multiple groups of fixing blocks 44 and heating tubes 6 are provided, and the multiple groups of fixing blocks 44 and heating tubes 6 are arranged in a row with the center line axis of the sleeve 41 as the rotation axis. Arranging multiple groups of fixing blocks 44 can synchronously fix multiple groups of heating tubes 6 to improve the heating efficiency.

[0035] Working principle: When heating is required, the fixing block 44 can be spliced ​​together through the protrusion 47 and the groove 48. At the same time, the heating tube 6 needs to be installed inside the fixing block 44 during the splicing process. After the splicing is completed, the sleeve 41 can be sleeved on the outer wall of the fixing block 44, and then the upper cover 2 can be opened to align the positioning ring 42 with the positioning groove 43 and put the sleeve 41, the fixing block 44 and the heating tube 6 into the top of the resistance furnace 1. After that, the upper cover 2 can be rotated to close, and then the support rod 52 can be pushed inward to move it inward. When the limit block 55 corresponds to the limit groove 58, The limiting spring 57 will push the limiting block 55 to make it fit into the limiting groove 58. At this time, the support rod 52 will also be fixed and unable to move outward. At the same time, when the support rod 52 moves inward, it will drive the cross bracket 53 and the cover 54 to move synchronously. When the support rod 52 is fixed, the cover 54 will also be sleeved on the outer wall of the heating tube 6 to fix the heating tube 6. Then the double-headed motor 31 can be started to drive the driving wheel 32 and the driven wheel 33 to rotate. The driven wheel 33 will drive the sleeve 41 to rotate. The sleeve 41 will drive the fixing block 44 and the heating tube 6 to rotate to ensure that the heating tube 6 is evenly heated.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-tube resistance furnace for producing carbon nanotube thin films, comprising a resistance furnace (1), characterized in that: The top of the resistance furnace (1) is provided with an upper cover (2), the top of the upper cover (2) is provided with a rotating assembly (3), the top of the resistance furnace (1) is plugged with a fixing assembly (4), the inner wall of the fixing assembly (4) is provided with a heating tube (6), the left end of the resistance furnace (1) is provided with a limiting assembly (5), the fixing assembly (4) comprises a sleeve (41), the outer wall of the sleeve (41) is provided with a positioning ring (42), the bottom end of the upper cover (2) is provided with a positioning groove (43), the positioning ring (42) and the positioning groove (43) are matched, the top of the resistance furnace (1) is also provided with a positioning groove (43), the inner wall of the sleeve (41) is plugged with a fixing block (44), and the heating tube (6) is plugged into the inner wall of the fixing block (44).

2. The multi-tube resistance furnace for producing carbon nanotube films according to claim 1, characterized in that: The limiting assembly (5) comprises a storage box (51), the right end of the storage box (51) is fixedly connected to the left end of the resistance furnace (1), the left end of the storage box (51) is penetrated by and slidably connected to a support rod (52), the right end of the support rod (52) is rotatably connected to a cross bracket (53), the right end of the cross bracket (53) is fixedly connected to a cover (54), and the cover (54) is sleeved on the left end of the heating tube (6).

3. The multi-tube resistance furnace for producing carbon nanotube films according to claim 2, characterized in that: The limiting assembly (5) further comprises a limiting block (55), wherein the limiting block (55) passes through and is slidably connected to the rear end of the storage box (51), a limiting groove (58) is provided at the rear end of the support rod (52), the limiting groove (58) and the limiting block (55) are adapted to each other, and a pull rod (56) is fixedly connected to the rear end of the limiting block (55), wherein the pull rod (56) passes through and is slidably connected to the rear end of the storage box (51).

4. The multi-tube resistance furnace for producing carbon nanotube films according to claim 3, characterized in that: The rear end of the limit block (55) is fixedly connected to a limit spring (57), and the rear end of the limit spring (57) is fixedly connected to the inner wall of the storage box (51). The left end of the support rod (52) is fixedly connected to a return spring (510), and the left end of the return spring (510) is fixedly connected to the inner wall of the storage box (51).

5. The multi-tube resistance furnace for producing carbon nanotube films according to claim 4, characterized in that: The rear end of the pull rod (56) is fixedly connected to a connecting rod (59), and the limit assembly (5) is provided in multiple groups. The multiple groups of limit assemblies (5) are symmetrically arranged with the center line of the resistance furnace (1) as the symmetry axis, and the rear end of another group of pull rods (56) is also fixedly connected to the front end of the connecting rod (59).

6. The multi-tube resistance furnace for producing carbon nanotube films according to claim 1, characterized in that: The rotating assembly (3) comprises a double-headed motor (31), the bottom end of the double-headed motor (31) is mounted on the top end of the upper cover (2), the left end of the double-headed motor (31) is fixedly connected to a driving wheel (32), the outer wall of the sleeve (41) is fixedly connected to a driven wheel (33), and the driving wheel (32) and the driven wheel (33) are meshed with each other.

7. The multi-tube resistance furnace for producing carbon nanotube films according to claim 1, characterized in that: The inner wall of the sleeve (41) is provided with a clamping block (45), and the outer wall of the fixing block (44) is provided with a clamping groove (46), and the clamping block (45) and the clamping groove (46) are matched.

8. The multi-tube resistance furnace for producing carbon nanotube films according to claim 1, characterized in that: A protrusion (47) is provided at the front end of the fixing block (44), and a groove (48) is provided at the front end of the fixing block (44) near the right end of the protrusion (47). The protrusion (47) and the groove (48) are adapted to each other. The fixing block (44) and the heating tube (6) are provided in multiple groups, and the multiple groups of the fixing blocks (44) and the heating tube (6) are arranged in a row and rotated with the center axis of the sleeve (41) as the rotation axis.

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