Muffle furnace convenient for discharging

Abstract

The utility model provides a muffle furnace convenient for discharging, and particularly relates to the technical field of glass manufacturing. In order to solve the problem of inconvenience in discharging in the prior art, the device comprises a discharging mechanism, the discharging mechanism comprises a baffle and a channel sliding block. A first through hole is formed in the baffle plate; a second through hole is formed in the channel sliding block; the discharging mechanism has a conducting state and a closing state; when the discharging mechanism is in a conducting state, the first through hole is communicated with the second through hole; when the discharging mechanism is in a closed state, the first through hole and the second through hole are not communicated. The discharging mechanism enables operators not to be in direct contact with a high-temperature discharging opening and a discharging baffle below the discharging mechanism, and meanwhile the production process is time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of glass manufacturing, and particularly relates to a muffle furnace facilitating discharging of materials. Background Art

[0002] A muffle furnace is a commonly used high-temperature furnace, mainly used for high-temperature treatment of samples, such as ashing, combustion, melting, etc. In industry, it is involved in hot processing of small workpieces, such as glass tubes, liquid crystal substrates, etc. During the process of drawing glass tubes using a muffle furnace, in order to obtain high-quality impurity-free glass tubes, it is necessary to discharge the glass liquid containing impurities before production, and the glass liquid containing impurities will directly flow into the bottom of the inner cavity of the muffle furnace. Currently, the glass waste at the bottom of the inner cavity of the muffle furnace needs to be cleaned out of the muffle furnace by manual scraping. The cleaning method of manual scraping is often inconvenient to operate. Since the temperature of the glass waste is very high, once the operation is improper, it will threaten personal safety and also reduce the service life of the muffle furnace.

[0003] For example, the patent with the publication number CN214371658U discloses a muffle furnace. A discharge hole is provided at the bottom of the furnace body, and the discharge hole is located below the feed port of the material channel. A baffle is provided at the discharge hole. When it is necessary to discharge the waste material conveyed by the material channel, the baffle at the discharge hole is opened, and the waste material flows out from the material port and is directly discharged from the muffle furnace through the discharge hole. The waste material will not flow into the bottom of the inner cavity of the furnace body. Therefore, there is no need to clean the waste material by manual scraping, and the cleaning efficiency of the waste material in the muffle furnace can be improved.

[0004] However, the problem with this method is that even by setting a discharge port below, it is impossible to avoid the situation that there may be inconvenience in operation or operation danger threatening personal safety when manually operating the discharge. Content of the Utility Model

[0005] The utility model provides a muffle furnace facilitating discharging of materials to alleviate the problems of inconvenient operation and operation danger existing in the prior art.

[0006] In order to alleviate the above technical problems, the technical solution provided by the utility model lies in:

[0007] The utility model provides a muffle furnace facilitating discharging of materials, which is characterized in that it includes a discharging mechanism;

[0008] The discharging mechanism includes a baffle and a channel slider;

[0009] A first through hole is provided on the baffle;

[0010] A second through hole is provided on the channel slider;

[0011] The discharging mechanism has a conducting state and a closed state;

[0012] When the discharging mechanism is in the conducting state, the first through-hole communicates with the second through-hole;

[0013] When the discharging mechanism is in the closed state, the first through-hole and the second through-hole are not conducting.

[0014] Further, the discharging mechanism includes: a compression spring and a limiting convex block; the baffle, the compression spring and the limiting convex block are located on the same straight line, and the baffle is located between the compression spring and the limiting convex block; the compression spring is configured to always have a tendency to drive the baffle to abut against the limiting convex block, and at this time the discharging mechanism is in the closed state.

[0015] Further, the baffle includes a horizontal plate, and a plurality of guide rods are inserted through the horizontal plate, and the axial direction of the guide rods is horizontal.

[0016] Further, the baffle further includes a driving convex block, the driving convex block is arranged on the lower surface of the horizontal plate, and the channel slider is arranged on one side of the driving convex block close to the limiting convex block; the channel slider can move towards the driving convex block to drive the baffle to move, so that the first through-hole and the second through-hole are conducting, and at this time, the discharging mechanism is in the conducting state.

[0017] Further, the channel slider includes a bottom block and a vertical block, and the vertical block abuts against the driving convex block; the bottom block is arranged at the lower end of the vertical block to support the vertical block.

[0018] Further, the discharging mechanism further includes a slide rail, and the bottom block is slidably connected to the slide rail.

[0019] Further, the discharging mechanism further includes a driving handle and a connecting rod, and both ends of the connecting rod are connected to the driving handle and the channel slider; the driving handle drives the channel slider to slide along the slide rail through the connecting rod.

[0020] Further, a base is further included, an upper discharging port is arranged on the upper surface of the inner cavity of the base, and a lower discharging port is arranged on the lower surface of the inner cavity of the base.

[0021] Further, a receiving box is further included, and the receiving box is arranged below the discharging mechanism and is communicated with the lower discharging port of the base.

[0022] Further, a heat insulating plate is further included, the heat insulating plate is arranged on the upper end surface of the base, and a funnel-shaped discharging port is arranged on the heat insulating plate, and the discharging port is communicated with the upper discharging port of the base.

[0023] Based on the above technical solutions, the technical effects that the present utility model can achieve are analyzed as follows:

[0024] The utility model discloses a muffle furnace convenient for discharging materials, which includes a discharging mechanism;

[0025] The discharging mechanism includes a baffle plate and a channel slider;

[0026] A first through hole is arranged on the baffle plate;

[0027] A second through hole is arranged on the channel slider;

[0028] The discharging mechanism has a conducting state and a closing state;

[0029] When the discharging mechanism is in the conducting state, the first through hole is communicated with the second through hole;

[0030] When the discharging mechanism is in the closing state, the first through hole is not conducted with the second through hole.

[0031] During the actual discharging process, an operator drives the discharging mechanism to make the channel slider slide. The first through hole of the baffle plate and the second through hole on the channel slider form a discharging path through the discharging port on the base, and the muffle furnace discharges the waste materials. Then, the operator drives the discharging mechanism again to close the passage.

[0032] The operator drives the discharging mechanism to enter the conducting state to safely and conveniently discharge the waste materials during the processing from the discharging port. During the heating process of the muffle furnace, the operator drives the discharging mechanism to the closing state to carry out the glass tube drawing process. This not only avoids the danger of directly contacting the high-temperature discharging port and the discharging baffle plate below, but also makes the production process time-saving and labor-saving. Description of the Drawings

[0033] In order to more clearly illustrate the specific implementation manners of the present utility model or the technical solutions in the related art, the following will briefly introduce the drawings required to be used in the description of the specific implementation manners or the related art. Obviously, the following drawings are some implementation manners of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 Internal schematic diagram of the muffle furnace convenient for discharging materials provided by the implementation manner of the present utility model;

[0035] Figure 2 Sectional view of the structure of the muffle furnace convenient for discharging materials in the conducting state according to the implementation manner of the present utility model;

[0036] Figure 3 Sectional view of the structure of the muffle furnace convenient for discharging materials in the closing state according to the implementation manner of the present utility model;

[0037] Figure 4Schematic diagram of the muffle furnace structure facilitating discharging according to the embodiments of the present utility model;

[0038] Figure 5 Schematic diagram of the structure of the heat insulation board provided by the embodiments of the present utility model;

[0039] Figure 6 Schematic diagram of the internal structure of the base provided by the embodiments of the present utility model.

[0040] Icon:

[0041] 100 - Discharging mechanism; 200 - Base; 110 - Baffle; 120 - Channel slider; 111 - First through hole; 121 - Second through hole; 130 - Compression spring; 140 - Limiting convex block; 112 - Horizontal plate; 113 - Driving convex block; 114 - Guide rod; 122 - Bottom block; 123 - Vertical block; 150 - Slide rail; 160 - Driving handle; 170 - Connecting rod; 210 - Upper discharging port; 220 - Lower discharging port; 300 - Material collection box; 400 - Heat insulation board; 410 - Discharge port. Specific embodiments

[0042] Embodiment 1

[0043] This embodiment provides a muffle furnace facilitating discharging. Please refer to Figures 1 - 6 simultaneously, and this device includes a discharging mechanism 100;

[0044] The discharging mechanism 100 includes a baffle 110 and a channel slider 120;

[0045] A first through hole 111 is provided on the baffle 110;

[0046] A second through hole 121 is provided on the channel slider 120;

[0047] The discharging mechanism 100 has a conducting state and a closing state;

[0048] When the discharging mechanism 100 is in the conducting state, the first through hole 111 communicates with the second through hole 121;

[0049] When the discharging mechanism 100 is in the closing state, the first through hole 111 is not in communication with the second through hole 121.

[0050] During the actual discharging process, the operator drives the discharging mechanism 100 to make the channel slider 120 slide. The first through hole 111 of the baffle 110 and the second through hole 121 on the channel slider 120 form a discharging path through the discharging port on the base 200, and the muffle furnace discharges the waste. Then, the discharging mechanism 100 is driven again to close the passage.

[0051] The operator drives the discharging mechanism 100 into the conducting state to safely and conveniently discharge the waste materials during the processing from the discharging port. During the heating process of the muffle furnace, the discharging mechanism 100 is then driven to the closed state for the glass tube drawing process, which not only eliminates the danger of directly contacting the high-temperature discharging port and the discharging baffle 110 below, but also makes the production process time-saving and labor-saving.

[0052] In order to enable the baffle 110 to reset to its original position after completing the discharging action, the discharging mechanism 100 includes: a compression spring 130 and a limit convex block 140; the baffle 110, the compression spring 130 and the limit convex block 140 are located on the same straight line, and the baffle 110 is located between the compression spring 130 and the limit convex block 140; the compression spring 130 is configured to always have a tendency to drive the baffle 110 to abut against the limit convex block 140, and at this time the discharging mechanism 100 is in the closed state.

[0053] The limit convex block 140, as a component on the base 200, is used to limit the movement range or position of the baffle 110, ensuring that the baffle 110 moves or stops correctly on a predetermined path or position and preventing the baffle 110 from exceeding the predetermined working range. The limit convex block 140 can have various shapes, such as square, rectangular or other special shapes. When designing the limit convex block, its size, shape, material and interaction with the mating components need to be considered to ensure the reliability and durability of the limiting effect. In this embodiment, the used limit convex block 140 is a rectangular plate with the same thickness as the baffle 110. The limit convex block 140 can be installed on the base 200 by welding, bolt fixing, snap fitting or other means. The limit convex block 140 can also be used in combination with a limit groove or a limit surface to form a limiting mechanism. One end of the compression spring 130 is closely attached to the spring limit plate, and a circular groove is machined on the spring limit plate. The circular groove is coaxial with the guide rod 114. One end of the compression spring 130 is installed in the circular groove. In order to make the load applied by the compression spring to the baffle 110 uniform and promote the smooth movement of the baffle 110, each guide rod 114 has a compression spring 130. The other end of the compression spring 130 always exerts a pressure on the baffle 110 towards the limit convex block 140. When selecting the compression spring 130, attention should be paid to the size, wire diameter, number of turns, material and end treatment of the spring.

[0054] In an alternative embodiment of the present invention, preferably, the baffle 110 includes a cross plate 112, and a plurality of guide rods 114 are inserted through the cross plate 112, and the axial direction of the guide rods 114 is horizontal.

[0055] The main body of the baffle 110 is a rectangular plate, and a cylindrical through hole is processed in the center of the rectangular surface of the plate. One of the rectangular end surfaces of the plate is processed and polished to be smooth as the working surface of the baffle, and a long strip-shaped protrusion is also provided on the rectangular end surface of the other plate, wherein the inner wall of the circular through hole extends downward, and a cylinder with a certain length is formed on the rectangular end surface of the other plate. There are multiple guide rods 114 at the other end of the base, and the guide rods 114 are perpendicular to the contact surface of the limiting protrusion 140 to provide a guide for the linear motion of the baffle 110 to prevent its movement from deviating from the predetermined trajectory; the guide rod 114 is cylindrical, which can be solid or hollow, and is usually used in conjunction with a guide sleeve or a slider, and its surface is ground or polished to reduce friction and improve the smoothness of movement. In the closed state, the baffle 110 is pushed by the elastic force of the compression spring 130 to be close to the end surface of the limiting protrusion 140, wherein the baffle 110 and the guide rod 114 are connected in a clearance fit manner, so that there is a certain gap between them, and they can slide freely.

[0056] In the optional scheme of this embodiment, more preferably, the baffle 110 also includes a driving protrusion 113, the driving protrusion 113 is arranged on the lower surface of the cross plate 112, and the channel slider 120 is arranged on the side of the driving protrusion 113 close to the limiting protrusion 140; the channel slider 120 can move in the direction of the driving protrusion 113 to drive the baffle 110 to move, so that the first through hole 111 and the second through hole 121 are connected, and at this time, the discharge mechanism 100 is in a conducting state.

[0057] The circular through hole on the baffle 110 is a preset first through hole 111. When the discharge mechanism 100 is in a closed state, the first through hole 111 is one of the components of the cylindrical discharge path. The upward part is connected to the upper discharge port 210 on the base 200, and the downward part is connected to the discharge channel 121 of the channel slider 120. Therefore, during the assembly process, attention should be paid to the coaxiality of the three parts of the circular holes to try to ensure that no waste is retained in the channel. During operation, the driving protrusion 113 fits tightly with the channel slider 120 below. When the channel slider 120 slides close to the driving handle 160, the upper end of the channel slider 120 pushes the driving protrusion 113 to move in the same direction. At this time, the driving protrusion 113 serves as a simple switch. The driving protrusion 113 is turned to open the baffle 110, so that the closed discharge port 210 is opened. In order to make this opening and closing process fast and smooth, the position of the driving protrusion 113 on the baffle 110 and the distance from the first through hole 111 must refer to the size of the outer shape of the lower end channel slider 120 and the position of the discharge channel 121 on the channel slider 120.

[0058] In the optional scheme of this embodiment, more preferably, the channel slider 120 includes a bottom block 122 and a vertical block 123 , and the vertical block 123 abuts against the driving protrusion 113 ; the bottom block 122 is arranged at the lower end of the vertical block 123 to support the vertical block 123 .

[0059] The channel slider 120 is a special-shaped slider. Its main body is a rectangular slider. There is a rectangular boss extending upward on the upper end face of the rectangular slider. A cylindrical hole is machined along the central axis of the boss. Rail tenons are machined on both sides of the bottom surface of the channel slider 120, providing a stable and smooth sliding mechanism for the channel slider 120. At the same time, it ensures that the channel slider 120 can be fixed at a specific position when needed. A processing round groove is reserved on the front end face of the channel slider 120 moving along the rail. On the processing round groove, there is a metal end cover, which connects one end of the connecting rod 170. The spherical connection of the connecting rod 170 can rotate freely in the processed round groove. At the same time, since the waste discharged during discharging is high-temperature glass liquid, an insulating protective sleeve can be installed on the inner wall of the cylindrical hole of the boss to prevent the entire discharging mechanism 100 from heating up due to metal heat conduction and damage to the discharging channel 121 during long-term use. Heat-insulating materials and heat-insulating coatings can also be used here.

[0060] In an alternative embodiment of this example, preferably, the discharging mechanism 100 further includes a rail 150, and the bottom block 122 is slidably connected to the rail 150.

[0061] The rail 150 is arranged on the bottom surface of the inner cavity of the base 200. The inside of the rail 150 cooperates with the tenons on the channel slider 120. The length of the rail 150 can be set according to the actual running distance of the channel slider 120. To ensure the smooth and unobstructed operation of the discharging mechanism 100, the surface roughness of the connection between the inside of the rail 150 and the tenons of the channel slider 120 should be refined to prevent the tenons from getting stuck during sliding. The structure of the rail 150 can be replaced by a lead screw and other limit running mechanisms.

[0062] In an alternative embodiment of this example, preferably, the discharging mechanism 100 further includes a driving handle 160 and a connecting rod 170. Both ends of the connecting rod 170 are connected to the driving handle 160 and the channel slider 120. The driving handle 160 drives the channel slider 120 to slide along the rail (150) through the connecting rod 170.

[0063] The driving handle 160 rotates with the central axis of the fixing holes reserved on the base 200 as the rotation axis. There are dot-shaped circular protrusions on the contact end surface around the cylindrical handle of the driving handle 160 and the base 200. During operation, when the discharging mechanism 100 is in the conducting state, the dot-shaped circular protrusions fall into the small circular holes on the contact surface of the base 200. Without manually rotating the driving handle 160, the conducting state of the discharging mechanism 100 can be maintained, achieving the locking effect on the discharging mechanism 100. In order to isolate the heat transfer inside the base 200 and ensure the safety of the operator during operation, the handle part of the driving handle 160 is separated from the body. The material of the handle should preferably have good heat insulation performance. Anti-slip patterns are processed on the surface of the handle, or an outer anti-slip sleeve is provided; in this embodiment, for the driving part of the discharging mechanism 100, a handle form can be adopted, or a handwheel and a push-pull type driving rod, or a push-button switch form can be selected; the principle of the handwheel is similar to that of the driving handle 160. If a push-pull type driving rod is adopted, it can be directly connected to the channel slider 120. During operation, the cylindricity of the driving rod should be ensured to avoid jamming during pushing and pulling; if a push-button switch form is adopted, a push-button switch can be set on the base 200. The push-button switch is connected to the compression cylinder. Pressing the switch, the cylinder pushes the channel to slide, completing the above opening and closing movement process. The circular protrusions at both ends of the connecting rod 170 rotate freely, connecting the driving handle 160 and the channel slider 120. At the rotating end of the driving handle 160, a circular groove similar to that of the channel slider 120 is processed, and a metal end cover is also installed above the circular groove to facilitate the installation of the connecting rod 170. Both ends of the connecting rod 170 can rotate freely to a certain extent. Under the condition of long-term use inside the base 200, both ends of the connecting rod 170 should be wear-resistant and corrosion-resistant, and its material should also meet a considerable degree of tensile, compressive, and bending strength and be able to adapt to high-temperature working conditions.

[0064] It further includes a base 200. An upper discharge port 210 is provided on the upper surface of the inner cavity of the base 200, and a lower discharge port 220 is provided on the lower surface of the inner cavity of the base 200.

[0065] The base 200 serves as a support for the muffle furnace body, providing a loading platform for the discharging mechanism 100. The base 200 can adopt a frame structure, a container structure, a box structure, and the body form of general components. In order to keep the high temperature in the furnace constant, in this example, a box structure is selected. Multilayer heat-insulating materials are provided as a sandwich around the inside of the chassis. The connection with the furnace body can adopt a mating connection method or a welding connection method. The welding method may involve the disassembly and maintenance of the intermediate heat-insulating plate, while the mating connection method can well simplify this problem. The base 200 is also provided with a spring limit plate, which provides a stable pressure for the compression spring 130, limits the position of the spring end at the same time, and is installed on the base 200 by means of bolts, welding, or clamps, etc.

[0066] In this embodiment, it further includes a material receiving box 300 disposed below the discharging mechanism 100, and the material receiving box 300 communicates with the lower discharging port 220 at the bottom end of the base 200.

[0067] The material receiving box 300 contains coolant inside. When the high-temperature waste in a molten state flows from the discharging mechanism 100 into the material receiving box 300, the waste cools down, ensuring that it can be properly processed during the recycling and degradation process without affecting production. The upper open position of the thin-shell structure of the material receiving box 300 is inwardly tapered, presenting a downward cone shape, so that some waste will not have phenomena such as wall hanging and retention. At the same time, in order to facilitate the loading, unloading and replacement of the internal liquid, there is a clamping chute on the bottom surface of the base 200 that cooperates with the material receiving box 300, and the flanging of the material receiving box 300 can be clamped from one side to the bottom end of the base 200.

[0068] In this embodiment, it further includes a heat insulation board 400. The heat insulation board is disposed on the upper end surface of the base 200, and there is a funnel-shaped discharging port 410 on the heat insulation board 400, and the discharging port 410 communicates with the upper discharging port 210 of the base 200.

[0069] The heat insulation board 400 is mainly disposed between the furnace body and the base 200 to reduce the heat transfer, thereby maintaining the temperature stability of the internal space and reducing the heat loss; the funnel-shaped discharging port 410 on the heat insulation board 400 communicates with the upper discharging port 210 of the base 200 and has the same shape, and the upper part corresponds to the feeding port of the furnace body and is on the same vertical axis as the feeding port. The heat insulation board 400 is a multi-layer board structure, and the upper and lower end face boards are preferably considered for the structural strength of supporting the overall framework, and the middle heat insulation layer should have good heat insulation performance.

[0070] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A muffle furnace that is easy to discharge, characterized in that: It includes a discharging mechanism (100); The material discharging mechanism (100) comprises a baffle (110) and a channel slider (120); The baffle (110) is provided with a first through hole (111); The channel slider (120) is provided with a second through hole (121); The discharge mechanism (100) has an on state and a off state; When the discharge mechanism (100) is in a conducting state, the first through hole (111) is in communication with the second through hole (121); When the discharge mechanism (100) is in a closed state, the first through hole (111) and the second through hole (121) are not connected.

2. The muffle furnace for easy discharge according to claim 1, characterized in that: The discharge mechanism (100) comprises: a compression spring (130) and a limiting protrusion (140); The baffle plate (110), the compression spring (130) and the limiting protrusion (140) are located on the same straight line, and the baffle plate (110) is located between the compression spring (130) and the limiting protrusion (140); The compression spring (130) is configured to always have a tendency to drive the baffle (110) to abut against the limiting protrusion (140), and at this time the discharge mechanism (100) is in a closed state.

3. The muffle furnace for easy discharge according to claim 2, characterized in that: The baffle (110) comprises a transverse plate (112), a plurality of guide rods (114) are inserted through the transverse plate (112), and the axial direction of the guide rods (114) is horizontal.

4. The muffle furnace for easy discharge according to claim 3, characterized in that: The baffle (110) further comprises a driving protrusion (113), wherein the driving protrusion (113) is arranged on the lower surface of the transverse plate (112), and the channel slider (120) is arranged on a side of the driving protrusion (113) close to the limiting protrusion (140); The channel slider (120) can move in the direction of the driving protrusion (113) to drive the baffle (110) to move, so that the first through hole (111) and the second through hole (121) are connected. At this time, the discharge mechanism (100) is in a conducting state.

5. The muffle furnace for easy discharge according to claim 4, characterized in that: The channel slider (120) comprises a bottom block (122) and a vertical block (123), wherein the vertical block (123) abuts against the driving protrusion (113); the bottom block (122) is arranged at the lower end of the vertical block (123) to support the vertical block (123).

6. The muffle furnace for easy discharge according to claim 5, characterized in that: The material discharging mechanism (100) further comprises a slide rail (150), and the bottom block (122) is slidably connected to the slide rail (150).

7. The muffle furnace for easy discharge according to claim 6, characterized in that: The discharging mechanism (100) further comprises a driving handle (160) and a connecting rod (170). Two ends of the connecting rod (170) are connected to the driving handle (160) and the channel slider (120); The driving handle (160) drives the channel slider (120) to slide along the slide rail (150) via the connecting rod (170).

8. The muffle furnace for easy discharge according to claim 7, characterized in that: It also comprises a base (200), wherein the upper surface of the inner cavity of the base (200) is provided with an upper discharge port (210), and the lower surface of the inner cavity of the base (200) is provided with a lower discharge port (220).

9. The muffle furnace for easy discharge according to claim 8, characterized in that: It also includes a material receiving box (300) arranged below the material discharging mechanism (100), and the material receiving box (300) is connected to the lower material discharging port (220) of the base (200).

10. The muffle furnace for easy discharge according to claim 9, characterized in that: It also includes an insulation plate (400), which is arranged on the upper end surface of the base (200), and a funnel-shaped discharge port (410) is provided on the insulation plate (400), and the discharge port (410) is connected to the upper discharge port (210) of the base (200).

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