An automatic feeding mechanism for green refractory materials

Abstract

This application provides an automatic feeding mechanism for green refractory materials, relating to the field of refractory material production technology. The automatic feeding mechanism includes two sets of dual-shaft conveying mechanisms. A spacing adjustment component is provided on the bottom side of each set of dual-shaft conveying mechanisms. A gap-blocking component and a double-cylinder sealing component are provided between the two sets of dual-shaft conveying mechanisms. The gap-blocking component and the double-cylinder sealing component maintain the airtightness between the two sets of dual-shaft conveying mechanisms even when the spacing between them changes. The double-cylinder sealing component includes a top arc-shaped plate, a bottom arc-shaped plate, a support seat, and two abutment plates. The spacing adjustment component allows for radial spacing changes between the two sets of dual-shaft conveying mechanisms, thereby adjusting the radial spacing between the two conveying blades within each mechanism. This allows the automatic feeding mechanism to be applicable to materials of different shapes, reducing production costs.

Description

Technical Field

[0001] This application relates to the field of refractory material production technology, and more specifically, to a green refractory material automatic feeding mechanism. Background Technology

[0002] In the production of refractory materials, the use of twin-shaft augers for conveying can improve conveying efficiency, adapt to materials of different forms (powder, granules, etc.), and the materials form a premixing effect during the conveying process. Furthermore, the structural characteristics of the twin-shaft auger can reduce dust dispersion to a certain extent.

[0003] However, in the existing dual-shaft auger technology, once the two spiral blades are manufactured, their positions are fixed, that is, the distance between the two shafts is fixed. As a result, the dual-shaft auger's applicable range is reduced because the position of the conveying blades cannot be changed. Different types of dual-shaft augers with different shaft spacings are required for different shaped materials, which increases production costs. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes an automatic feeding mechanism for green refractory materials, including two sets of dual-axis conveying mechanisms arranged side-by-side and symmetrically. A spacing adjustment component is provided on the bottom side of each set of dual-axis conveying mechanisms, allowing radial spacing changes between the two sets of mechanisms. A gap-blocking component and a double-cylinder sealing component are provided between the two sets of mechanisms, maintaining a tight seal between them even when the spacing changes. The dual-cylinder sealing assembly is axially disposed on the bottom side of the two sets of dual-axis conveying mechanisms, including a top arc-shaped plate, a bottom arc-shaped plate, a support seat, and two abutment plates. The top arc-shaped plate is sealed and snapped onto the inner bottom side of the two sets of dual-axis conveying mechanisms. The bottom arc-shaped plate is disposed on the bottom side of the two sets of dual-axis conveying mechanisms and connected to the top arc-shaped plate. The support seat is disposed on the bottom side of the bottom arc-shaped plate and elastically connected to the bottom arc-shaped plate. The two abutment plates are symmetrically fixed to the outer shell of the two sets of dual-axis conveying mechanisms and abut against the bottom arc-shaped plate. The top arc-shaped plate has elastic deformation capability.

[0005] Preferably, the dual-axis conveying mechanism includes a conveying cylinder, conveying blades, and a conveying motor. The radial cross-section of the conveying cylinder is not a complete circle. The conveying blades are coaxially arranged on the conveying cylinder. The conveying motor is fixed to the end of the conveying cylinder and is drivenly connected to the conveying blades.

[0006] Preferably, the bottom side of the dual-axis conveying mechanism is provided with a support assembly, the support assembly includes a fixed seat, and two displacement seats are symmetrically arranged on both sides of the fixed seat. The two conveying cylinders and the two conveying motors are respectively symmetrically fixed to the two displacement seats.

[0007] Preferably, the spacing adjustment assembly includes an adjustment motor, a double-ended screw, and two guide rods. The adjustment motor is fixed to the fixed base, the double-ended screw rotates through the fixed base and is keyed to the output shaft of the adjustment motor, and the two guide rods are respectively fixed to the fixed base and slide through the two displacement seats.

[0008] Preferably, the gap-blocking assembly includes a positioning frame, a fixing plate, and two sets of displacement plates. The positioning frame is fixed to the fixing base and located on the periphery of the two conveying cylinders. The fixing plate is fixed to the positioning frame and located in the middle of the two conveying cylinders. The two sets of displacement plates are symmetrically fixed to the two conveying cylinders and slidably inserted into the fixing plate.

[0009] Preferably, both the top arc-shaped plate and the bottom arc-shaped plate are arranged in an axisymmetric arc-shaped structure, and the upper end face of the symmetrical arc-shaped structure is curved downward on both sides and arched upward in the middle.

[0010] Preferably, the top arc-shaped plate is located on the inner bottom side of the two conveying cylinders and is sealed and fitted to the inner wall of the conveying cylinder.

[0011] Preferably, a plurality of connecting screws are evenly inserted into the top arc-shaped plate along the axial direction, and a sealing ring is provided between the plurality of connecting screws and the top arc-shaped plate. The connecting screws slide through the top arc-shaped plate and are threadedly connected to the bottom arc-shaped plate.

[0012] Preferably, the support base is uniformly fixed with a plurality of sliding rods along its length, the plurality of sliding rods are slidably inserted into the bottom arc plate, and a return spring is sleeved on the sliding rod. The two ends of the return spring abut against the support base and the bottom arc plate respectively, and the plurality of connecting screws and the plurality of sliding rods are staggered.

[0013] Preferably, the abutment plates are symmetrically fixed to the bottom sides of the two conveying cylinders and abut against the lower bend of the upper surface of the bottom arc plate.

[0014] The beneficial effects of this invention are:

[0015] By using a spacing adjustment component to change the radial spacing between two sets of dual-axis conveying mechanisms, and then adjusting the radial spacing between the two conveying blades inside, the green refractory material automatic feeding mechanism of this application can be applied to materials of different shapes, thereby reducing production costs.

[0016] The gap shielding component is used to compensate for the gap caused by radial displacement on the outer sides of the two sets of twin-axis conveying mechanisms, so as to ensure the integrity between the two sets of twin-axis conveying mechanisms during displacement changes and prevent dust from escaping.

[0017] By using two abutment plates to slide against the bottom arc-shaped plate, the top arc-shaped plate changes shape on the two conveying cylinders, while ensuring that the curvature of the two conveying chambers remains as unchanged as possible, thus ensuring the normal conveying of materials.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an automatic feeding mechanism for green refractory materials according to an embodiment of this application;

[0021] Figure 2 This is a partial structural schematic diagram of an automatic feeding mechanism for green refractory materials according to an embodiment of this application;

[0022] Figure 3 This is an exploded view of the structure of an automatic feeding mechanism for green refractory materials according to an embodiment of this application;

[0023] Figure 4 This is a partial exploded view of the gap-blocking component according to an embodiment of this application;

[0024] Figure 5 This is a partial structural side view of an automatic feeding mechanism for green refractory materials according to an embodiment of this application;

[0025] Figure 6 This is an exploded view of the structure of the double-cylinder sealing assembly according to an embodiment of this application;

[0026] Figure 7 This is an exploded view of the structure of the double-cylinder sealing assembly and the pre-tightening assembly according to embodiments of this application;

[0027] Figure 8 This is a schematic diagram showing the position of the pre-tightening component within the double-cylinder sealing component according to an embodiment of this application;

[0028] Figure 9This is a partial exploded view of the pretensioning assembly according to an embodiment of this application;

[0029] Figure 10 This is a schematic diagram showing the location of the buffer component according to an embodiment of this application;

[0030] Figure 11 This is a cross-sectional view of a buffer component according to an embodiment of this application.

[0031] Icons: 1. Dual-axis conveyor mechanism; 11. Conveyor cylinder; 12. Conveyor blade; 13. Conveyor motor; 2. Support assembly; 21. Fixed seat; 22. Displacement seat; 3. Spacing adjustment assembly; 31. Adjustment motor; 32. Double-headed screw; 33. Guide rod; 4. Gap blocking assembly; 41. Positioning frame; 42. Fixed plate; 43. Displacement plate; 5. Dual-cylinder sealing assembly; 51. Top arc plate; 511. Connecting screw; 512. Sealing ring; 513. Bottom T-slot; 52. Bottom arc plate; 5 21. Top side T-slot; 53. Bearing seat; 531. Slide rod; 532. Return spring; 54. Abutment plate; 6. Pre-tightening assembly; 61. Top side L-shaped plate; 611. Top side T-shaped block; 612. Top side positioning block; 613. Top side positioning screw; 62. Bottom side L-shaped plate; 621. Bottom side T-shaped block; 622. Bottom side positioning block; 623. Bottom side positioning screw; 63. Pre-tightening component; 631. Pre-tightening screw; 632. Pre-tightening spring; 7. Buffer assembly; 71. Buffer cylinder; 72. Buffer spring. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Example 1, as Figures 1-6As shown, an automatic feeding mechanism for green refractory materials according to an embodiment of this application includes two sets of dual-axis conveying mechanisms 1, which are arranged side by side and symmetrically. A spacing adjustment component 3 is provided on the bottom side of the two sets of dual-axis conveying mechanisms 1, which causes a radial change in the spacing between the two sets of dual-axis conveying mechanisms 1. A gap blocking component 4 and a double-cylinder sealing component 5 are provided between the two sets of dual-axis conveying mechanisms 1, which maintain the sealing between the two sets of dual-axis conveying mechanisms 1 when the spacing between them changes.

[0035] like Figures 1-3 As shown, the dual-axis conveying mechanism 1 includes a conveying cylinder 11, conveying blades 12, and a conveying motor 13. The radial cross-section of the conveying cylinder 11 is not a complete circle. The conveying blades 12 are coaxially arranged on the conveying cylinder 11. The conveying motor 13 is fixed to the end of the conveying cylinder 11 and is connected to the conveying blades 12 for transmission. Specifically, a transmission shaft is provided at the axis of the conveying blades 12 and is keyed to the output shaft of the conveying motor 13. Thus, the two sets of symmetrically arranged dual-axis conveying mechanisms 1 constitute a dual-axis auger for conveying and feeding refractory materials.

[0036] Among them, the bottom side of the dual-axis conveying mechanism 1 is provided with a support component 2. The support component 2 includes a fixed seat 21. Two displacement seats 22 are symmetrically arranged on both sides of the fixed seat 21. The two conveying cylinders 11 and the two conveying motors 13 are respectively symmetrically fixed to the two displacement seats 22. It can be understood that the two dual-axis conveying mechanisms 1 move synchronously and in the same direction with the two displacement seats 22.

[0037] It should be noted that the spacing adjustment component 3 includes an adjustment motor 31, a double-ended screw 32, and two guide rods 33. The adjustment motor 31 is fixed to the fixed base 21. The double-ended screw 32 rotates through the fixed base 21 and is keyed to the output shaft of the adjustment motor 31. The two guide rods 33 are respectively fixed to the fixed base 21 and slide through the two displacement seats 22. Specifically, the guide rods 33 are fixedly inserted through the fixed base 21 along the width direction and then slidably connected to the two displacement seats 22 respectively. It can be understood that the adjustment motor 31 drives the double-ended screw 32 to rotate, which will force the two displacement seats 22 to move synchronously and in opposite directions on both sides of the fixed base 21. The guide rods 33 play the role of rotation restriction and directional guidance. Furthermore, the displacement of the displacement seats 22 will synchronously drive the dual-axis conveying mechanism 1 fixed above them to change the spacing.

[0038] like Figures 1-4As shown, the gap blocking assembly 4 includes a positioning frame 41, a fixing plate 42, and two sets of displacement plates 43. The positioning frame 41 is fixed to the fixing base 21 and located on the periphery of the two conveying cylinders 11. The fixing plate 42 is fixed to the positioning frame 41 and located in the middle of the two conveying cylinders 11. The two sets of displacement plates 43 are symmetrically fixed to the two conveying cylinders 11 and are slidably inserted into the fixing plate 42.

[0039] It should be noted that, in the specific embodiments of this application, the fixed plate 42 and the displacement plates 43 that are slidably inserted on both sides of it are respectively provided at the front and rear ends and the top side of the two conveying cylinders 11, in order to prevent the formation of gaps when radial displacement changes occur between the two conveying cylinders 11.

[0040] like Figure 5 and Figure 6 As shown, the double-cylinder sealing assembly 5 is axially arranged on the bottom side of the two sets of double-axis conveying mechanisms 1, including a top arc plate 51, a bottom arc plate 52, a bearing seat 53 and two abutment plates 54. The top arc plate 51 is sealed and snapped onto the inner bottom side of the two sets of double-axis conveying mechanisms 1. The bottom arc plate 52 is arranged on the bottom side of the two sets of double-axis conveying mechanisms 1 and connected to the top arc plate 51. The bearing seat 53 is arranged on the bottom side of the bottom arc plate 52 and elastically connected to the bottom arc plate 52. The two abutment plates 54 are symmetrically fixed on the outer shell of the two sets of double-axis conveying mechanisms 1 and abut against the bottom arc plate 52.

[0041] It should be noted that both the top arc plate 51 and the bottom arc plate 52 are arranged in an axisymmetric arc structure. The upper surface of the symmetrical arc structure is curved downward on both sides and arched upward in the middle. The top arc plate 51 has elastic deformation capability. That is, when the two conveying cylinders 11 are close to each other, the top arc plate 51 is stretched to both sides and its height decreases (that is, the included angle of the lower end face of the top arc plate 51 increases); when the two conveying cylinders 11 are far apart, the top arc plate 51 is squeezed towards the middle and its height increases (that is, the included angle of the lower end face of the top arc plate 51 decreases).

[0042] It should be further explained that the top arc plate 51 is located on the inner bottom side of the two conveying cylinders 11 and is sealed and fitted with the inner wall of the conveying cylinder 11. With its own elastic deformation capability, it ensures that no matter whether the distance between the two conveying cylinders 11 increases or decreases, the bottom position between the two conveying cylinders 11 will be sealed (that is, a complete bottom is formed between the two conveying chambers to prevent material leakage).

[0043] The top arc plate 51 is evenly inserted with multiple connecting screws 511 along the axial direction. A sealing ring 512 is provided between the multiple connecting screws 511 and the top arc plate 51. The connecting screws 511 slide through the top arc plate 51 and are threaded to the bottom arc plate 52.

[0044] It is understandable that the top arc-shaped plate 51 is connected to the bottom arc-shaped plate 52 via the connecting screw 511, as shown below. Figure 5 As shown, the top arc-shaped plate 51 and the bottom arc-shaped plate 52 form a pagoda shape.

[0045] Furthermore, the support base 53 is uniformly fixed with multiple sliding rods 531 along its length. The multiple sliding rods 531 are slidably inserted into the bottom arc plate 52. A return spring 532 is sleeved on the sliding rod 531. The two ends of the return spring 532 abut against the support base 53 and the bottom arc plate 52 respectively. In this way, an elastic connection is formed between the bottom arc plate 52 and the support base 53. It should be noted that the multiple connecting screws 511 and the multiple sliding rods 531 are staggered to avoid interference between them.

[0046] Preferably, the abutment plates 54 are symmetrically fixed to the bottom sides of the two conveying cylinders 11 and abut against the lower bend of the upper end face of the bottom arc plate 52.

[0047] Therefore, it is understandable that when conveying and feeding different refractory materials, it is not necessary to replace the entire feeding equipment. Based on the morphological characteristics of the refractory material, the motor 31 drives the double-headed screw 32 to rotate, causing the two displacement seats 22 to move closer or further away from the fixed seat 21. This, in turn, drives the two sets of dual-shaft conveying mechanisms 1 to move closer or further away radially. Thus, it is understood that the two conveying blades 12 will move closer or further away radially, changing the distance between the two conveying blades 12, thereby adapting the feeding equipment to the corresponding refractory material. When the distance between the two dual-shaft conveying mechanisms 1 changes... When the fixed plate 42 is fixed to the fixed base 21 by the positioning frame 41, the fixed plate 42 will not move. The displacement plates 43 on both sides slide within the fixed plate 42 as they follow the conveying cylinder 11. It can be understood that the sealing sliding arrangement between the displacement plates 43 and the fixed plate 42 keeps the two conveying cylinders 11 intact (except for the bottom side), avoiding gaps that could cause material leakage or dust dispersion. The bottom sides of the two conveying cylinders 11 are also sealed by the shape change of the double cylinder sealing assembly 5. Specifically, when the two conveying cylinders 11 approach each other, the abutment plate 54 moves from both sides to the middle and abuts the bottom arc plate 52. The downward curve at the upper end of the plate causes compression. Due to the arc design of the upper end of the bottom arc plate 52, when the abutment plate 54 moves towards the center, it will force the bottom arc plate 52 to move downward along the slide rod 531 and compress the return spring 532. The bottom arc plate 52 is connected to the top arc plate 51 through the connecting screw 511. At this time, the top arc plate 51 will move downward synchronously, and the two sides of the top arc plate 51 will undergo relative displacement and sliding on the conveyor cylinder 11. Since the top arc plate 51 descends as a whole, the two sides and the conveyor cylinder 11 form a sealing abutment effect. Therefore, the angle of the lower end of the top arc plate 51 will increase at this time. Conversely, when the two conveying cylinders 11 move away from each other, the return spring 532 will force the bottom arc plate 52 to move upward, which will then drive the top arc plate 51 to rise as a whole. Because the top arc plate 51 has elastic deformation, the two sides of the top arc plate 51 will shrink relative to the conveying cylinder 11 and maintain a sealed sliding contact. That is, the included angle of the lower end face of the top arc plate 51 is relatively reduced. The above changes ensure that a seal is formed between the bottom sides of the two conveying cylinders 11, ensuring that the two dual-axis conveying mechanisms 1 will maintain their integrity whether they are relatively close or far apart, and ensuring the normal conveying of refractory materials.

[0048] In related technologies, the automatic feeding mechanism for green refractory materials has a problem where the top arc plate 51 deforms due to its own elasticity. However, if it is used for a long time or kept in a state of stress deformation (such as being stretched at an increasing angle or compressed at a decreasing angle), its elastic deformation ability will weaken. This can easily cause gaps to appear between the bottom of the two conveying cylinders 11 and the top arc plate 51 when the distance between the two dual-axis conveying mechanisms 1 changes again, resulting in leakage of conveyed materials and affecting normal conveying and feeding operations.

[0049] Example 2, according to some embodiments of this application, such as Figures 7-9 As shown, two sets of pre-tightening components 6 are symmetrically arranged between the top arc plate 51 and the bottom arc plate 52. The pre-tightening components 6 include a top L-shaped plate 61 and a bottom L-shaped plate 62 distributed vertically. A pre-tightening member 63 is connected between the top L-shaped plate 61 and the bottom L-shaped plate 62. The top L-shaped plate 61 and the bottom L-shaped plate 62 slide on the top arc plate 51 and the bottom arc plate 52, respectively.

[0050] like Figure 7 and 8 As shown, the lower end of the top arc plate 51 is symmetrically provided with multiple bottom T-shaped grooves 513, and the upper end of the bottom arc plate 52 is symmetrically provided with multiple top T-shaped grooves 521.

[0051] Specifically, such as Figure 8 and 9 As shown, a plurality of top-side T-shaped blocks 611 are provided at the top of the top side L-shaped plate 61. The plurality of top-side T-shaped blocks 611 are slidably disposed in a plurality of bottom-side T-shaped grooves 513. A top-side positioning block 612 is fixedly connected to one end of the top-side T-shaped block 611. A top-side positioning screw 613 is slidably inserted into the top-side positioning block 612. The top-side positioning screw 613 slidably passes through the top-side L-shaped plate 61 and is threadedly connected to the conveying cylinder 11.

[0052] It is understandable that the top L-shaped plate 61 and the conveying cylinder 11 are fixedly connected. Therefore, it is further understood that the conveying cylinder 11 will drive the top L-shaped plate 61 to move synchronously and in the same direction.

[0053] Furthermore, the bottom end of the bottom L-shaped plate 62 is provided with a plurality of bottom T-shaped blocks 621, the plurality of bottom T-shaped blocks 621 are slidably disposed in a plurality of top T-shaped grooves 521, one end of the bottom T-shaped block 621 is fixedly connected to a bottom positioning block 622, and a bottom positioning screw 623 is slidably inserted into the bottom positioning block 622, the bottom positioning screw 623 being threadedly connected to the bottom L-shaped plate 62.

[0054] The preload component 63 includes a preload screw 631 and a preload spring 632. The preload screw 631 passes through the bottom L-shaped plate 62 and is threaded to the top L-shaped plate 61. The preload spring 632 is sleeved on the preload screw 631, and the two ends of the preload spring 632 abut against the end of the preload screw 631 and the bottom L-shaped plate 62, respectively.

[0055] It is understandable that the top L-shaped plate 61 and the bottom L-shaped plate 62 are connected as a whole by the pre-tightening screw 631.

[0056] Therefore, in practical use, when the conveying cylinder 11 is displaced, it will synchronously and in the same direction drive the top L-shaped plate 61 and the bottom L-shaped plate 62 to slide on the bottom side of the top arc plate 51 and the top side of the bottom arc plate 52, respectively. The top L-shaped plate 61 and the bottom L-shaped plate 62 are elastically connected by a pre-tension spring 632, meaning that the top L-shaped plate 61 can elastically displace relative to the bottom L-shaped plate 62. Furthermore, it can be understood that the top arc plate 51 can elastically displace relative to the bottom arc plate 52 (see reference). Figure 8 (in the height direction)

[0057] Thus, when the two conveyor cylinders 11 move away from each other, each conveyor cylinder 11 will pull its corresponding set of top L-shaped plates 61 and bottom L-shaped plates 62 to move synchronously and in the same direction. That is, the set of top L-shaped plates 61 and bottom L-shaped plates 62 will slide along the corresponding bottom T-shaped groove 513 and top T-shaped groove 521 towards the sides of the top arc plate 51 and bottom arc plate 52, respectively. Since the bottom arc plate 52 does not have the ability to deform, it can be understood that the lower sides of the top arc plate 51 are subjected to the tension provided by the elasticity between the top L-shaped plates 61 and bottom L-shaped plates 62. The magnitude of this elasticity is determined by the compression of the preload spring 632. Yes, at this time, the two sides of the top arc plate 51 and the conveying cylinder 11 will form a better sealing and fitting effect under the action of the pre-tightening spring 632. Conversely, even when the two conveying cylinders 11 are close to each other, the top L-shaped plate 61 and the bottom L-shaped plate 62 will shift towards the center. Because the top L-shaped plate 61 and the bottom L-shaped plate 62 have elasticity, they will still exert a downward pulling force on the top arc plate 51. Thus, it can be understood that this design increases the service life of the top arc plate 51, avoids its own elastic deformation failure or descent, which would cause leakage on the bottom side of the entire dual-shaft conveying mechanism 1, and improves the service life of the entire feeding mechanism.

[0058] In related technologies, this automatic feeding mechanism for green refractory materials requires a sealed sliding state between the top arc plate 51 and the conveying cylinder 11. Therefore, there will be significant friction between the top arc plate 51 and the conveying cylinder 11. If the top arc plate 51 and the bottom arc plate 52 are only fixedly connected by the connecting screw 511, the top arc plate 51 will form a relatively rigid contact with the conveying cylinder 11, resulting in severe friction between the two and aggravating the wear of the top arc plate 51 itself. In particular, the sealing performance between its two side edges and the conveying cylinder 11 will be severely reduced with wear.

[0059] Example 3, according to some embodiments of this application, such as Figure 10 and Figure 11 As shown, a buffer assembly 7 is sleeved on the connecting screw 511. The buffer assembly 7 is used to enable the top arc plate 51 to have elastic displacement capability when displacement changes occur between the top arc plate 51 and the bottom arc plate 52.

[0060] Specifically, the buffer assembly 7 includes a buffer cylinder 71 and a buffer spring 72. The buffer cylinder 71 is coaxially connected to the sealing ring 512. The end of the connecting screw 511 extends into the buffer cylinder 71. The buffer spring 72 is sleeved on the connecting screw 511. The two ends of the buffer spring 72 abut against the end of the connecting screw 511 and the inner bottom end of the buffer cylinder 71, respectively.

[0061] Therefore, in practical use, when the top arc plate 51 is pulled downward by the bottom arc plate 52, the connecting screw 511 will first follow the bottom arc plate 52 downward and compress the buffer spring 72. The top arc plate 51, under the elastic force of the buffer spring 72, tends to move downward, changing from the original rigid downward displacement to the current elastic downward displacement, thus reducing the downward pull. In this way, the pressure of the top protrusion of the top arc plate 51 on its two sides is reduced, that is, the overall deformation of the top arc plate 51 will be weakened. At the same time, the contact force between the two sides of the top arc plate 51 and the conveying cylinder 11 is also relatively reduced, ensuring a tight seal while reducing the pressure between the two. The contact force between the conveyor cylinder 11 and the top arc plate 51 will reduce the friction between them when relative displacement changes, thereby increasing the service life of the top arc plate 51. Similarly, when the top arc plate 51 is pushed upward by the bottom arc plate 52, the presence of the buffer spring 72 will change the push force from rigid to elastic, avoiding large deformation between the top protrusion and the sides. This will further ensure the service life of the top arc plate 51. The presence of the buffer spring 72 and the pre-tightening spring 632 can ensure the sealing and fit between the top arc plate 51 as a whole and its sides and the conveyor cylinder 11.

[0062] It should be noted that the specific models and specifications of the conveying blade 12, conveying motor 13, adjusting motor 31, double-headed screw 32, connecting screw 511, return spring 532, top side positioning screw 613, bottom side positioning screw 623, pre-tightening screw 631, pre-tightening spring 632 and buffer spring 72 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0063] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A kind of green fireproof material automatic feeding mechanism, it is characterized in that, The utility model relates to a double -shaft conveying mechanism (1) is provided with gap shielding assembly (4) and double -barrel plugging assembly (5) between two groups, gap shielding assembly (4), double -barrel plugging assembly (5) always keep the leakproofness between two groups of double -shaft conveying mechanism (1) when the interval change between two groups of double -shaft conveying mechanism (1) occurs. The utility model relates to a double -shaft conveying mechanism (1) is provided with gap shielding assembly (4) and double -barrel plugging assembly (5) between two groups, gap shielding assembly (4), double -barrel plugging assembly (5) always keep the leakproofness between two groups of double -shaft conveying mechanism (1) when the interval change between two groups of double -shaft conveying mechanism (1) occurs. The utility model relates to a double -shaft conveying mechanism (1) is provided with gap shielding assembly (4) and double -barrel plugging assembly (5) between two groups, gap shielding assembly (4), double -barrel plugging assembly (5) always keep the leakproofness between two groups of double -shaft conveying mechanism (1) when the interval change between two groups of double -shaft conveying mechanism (1) occurs. The utility model relates to a double -shaft conveying mechanism (1) is provided with gap shielding assembly (4) and double -barrel plugging assembly (5) between two groups, gap shielding assembly (4), double -barrel plugging assembly (5) always keep the leakproofness between two groups of double -shaft conveying mechanism (1) when the interval change between two groups of double -shaft conveying mechanism (1) occurs. The utility model relates to a double -shaft conveying mechanism (1) is provided with gap shielding assembly (4) and double -barrel plugging assembly (5) between two groups, gap shielding assembly (4), double -barrel plugging assembly (5) always keep the leakproofness between two groups of double -shaft conveying mechanism (1) when the interval change between two groups of double -shaft conveying mechanism (1) occurs.

2. The automatic feeding mechanism of green refractory material according to claim 1, characterized in that, The utility model relates to a double -shaft conveying mechanism (1) is provided with gap shielding assembly (4) and double -barrel plugging assembly (5) between two groups, gap shielding assembly (4), double -barrel plugging assembly (5) always keep the leakproofness between two groups of double -shaft conveying mechanism (1) when the interval change between two groups of double -shaft conveying mechanism (1) occurs.

3. The automatic feeding mechanism of green refractory material according to claim 2, characterized in that, The utility model relates to a double -shaft conveying mechanism (1) is provided with gap shielding assembly (4) and double -barrel plugging assembly (5) between two groups, gap shielding assembly (4), double -barrel plugging assembly (5) always keep the leakproofness between two groups of double -shaft conveying mechanism (1) when the interval change between two groups of double -shaft conveying mechanism (1) occurs.

4. The automatic feeding mechanism of green refractory material according to claim 3, characterized in that, The utility model relates to a double -shaft conveying mechanism (1) is provided with gap shielding assembly (4) and double -barrel plugging assembly (5) between two groups, gap shielding assembly (4), double -barrel plugging assembly (5) always keep the leakproofness between two groups of double -shaft conveying mechanism (1) when the interval change between two groups of double -shaft conveying mechanism (1) occurs.

5. The automatic feeding mechanism of green refractory material according to claim 4, characterized in that, The gap shielding assembly (4) comprises a positioning frame (41), a fixed plate (42) and two groups of displacement plates (43), the positioning frame (41) is fixedly connected to the fixed seat (21) and located at the circumferential side of the two conveying barrels (11), the fixed plate (42) is fixedly connected to the positioning frame (41) and located between the two conveying barrels (11), and the two groups of displacement plates (43) are symmetrically fixedly connected to the two conveying barrels (11) and sealingly and slidingly connected to the fixed plate (42).

6. The automatic feeding mechanism of green refractory material according to claim 1, characterized in that, The top arc-shaped plate (51) and the bottom arc-shaped plate (52) are both arranged in an axis-symmetric arc-shaped structure, and the upper end surface of the axis-symmetric arc-shaped structure is in a downward-bent middle-arched shape.

7. The automatic feeding mechanism of green refractory material according to claim 2, characterized in that, The top arc-shaped plate (51) is located at the inner bottom side of the two conveying barrels (11) and sealingly abuts against the inner wall of the conveying barrel (11).

8. The automatic feeding mechanism of green refractory material as claimed in claim 1, wherein, The top arc-shaped plate (51) is uniformly provided with a plurality of connecting screw rods (511) in the axial direction, a plurality of sealing rings (512) are arranged between the connecting screw rods (511) and the top arc-shaped plate (51), the connecting screw rods (511) slidingly penetrate the top arc-shaped plate (51) and are threadedly connected to the bottom arc-shaped plate (52).

9. The automatic feeding mechanism of green refractory material according to claim 8, characterized in that, The bearing seat (53) is uniformly provided with a plurality of sliding rods (531) in the length direction, the plurality of sliding rods (531) slidingly connect to the bottom arc-shaped plate (52), a reset spring (532) is sleeved on the sliding rod (531), the two ends of the reset spring (532) abut against the bearing seat (53) and the bottom arc-shaped plate (52) respectively, and the plurality of connecting screw rods (511) and the plurality of sliding rods (531) are arranged in a staggered manner.

10. The automatic feeding mechanism of green refractory material according to claim 2, characterized in that, The abutting plates (54) are symmetrically fixedly connected to the bottom sides of the two conveying barrels (11) and abut against the downward-bent portions of the upper end surfaces of the bottom arc-shaped plates (52).

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