Furnace door automatic opening and closing control device for neodymium iron boron melt-spinning smelting

Abstract

The utility model aims to provide an automatic opening and closing control device of a furnace door for neodymium iron boron melt-spinning smelting, which comprises a furnace body and the furnace door mounted on the furnace body, an ejection cylinder is arranged on the furnace body, a rotary locking cylinder is arranged on the ejection cylinder, a locking part is mounted on the rotary locking cylinder, a positioning block is arranged on the furnace door, and the positioning block is arranged on the furnace door. The locking part is controlled to rotate by a specific angle by rotating the locking cylinder, so that the locking part is contacted with or separated from the positioning block, the locking part is used for buckling and releasing the furnace door, and the locking part is matched with the ejection cylinder to pull back or eject the rotating locking cylinder, so that the locking part presses or loosens the positioning block. According to the utility model, the ejection cylinder, the rotary locking cylinder, the compression positioning block, the compression bolt and other structures are matched for use, so that the furnace door and the furnace body are automatically locked or opened, the labor intensity of workers is reduced, and meanwhile, the hydraulic buffer and the buffer head are arranged to replace a traditional anti-explosion chain, so that the anti-explosion of the furnace door is realized, and the production efficiency is improved. The device is simple and compact in overall structure and convenient, fast and efficient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of NdFeB strip-swinging sheets, in particular to an automatic opening and closing control device for a furnace door used for NdFeB strip-swinging smelting. Background Art

[0002] With the development of science and technology in my country, the requirements for more convenient, safe and intelligent equipment operation are getting higher and higher. In the process of NdFeB strip production, a strip furnace is needed to melt the NdFeB strip sheets. After the melting is completed, the furnace door is opened to take out the materials. However, the door of the strip furnace is bulky. The traditional way of opening and closing the furnace door is to open and close the furnace door manually by physical strength. The work intensity is high and it is not easy to operate, resulting in low work efficiency. Summary of the Invention

[0003] The purpose of the utility model is to provide an automatic opening and closing control device for a furnace door used for NdFeB strip smelting to solve the problems existing in the prior art. To achieve the above purpose, the specific technical scheme of the utility model is: an automatic opening and closing control device for a furnace door used for NdFeB strip smelting, comprising a furnace body and a furnace door installed on the furnace body, the furnace body is provided with an ejection cylinder, the ejection cylinder is provided with a rotary locking cylinder, the rotary locking cylinder is equipped with a locking part, the furnace door is provided with a positioning block, the locking part is controlled to rotate to a specific angle by the rotary locking cylinder, so that the locking part contacts or leaves the positioning block, thereby realizing the locking part buckling and releasing the furnace door, and cooperating with the ejection cylinder to pull back or eject the rotary locking cylinder, so that the locking part presses or loosens the positioning block, thereby realizing locking or opening between the furnace door and the furnace body.

[0004] According to the above technical solution, when the furnace door needs to be opened, the ejection cylinder is first controlled to eject the rotary locking cylinder, and then the rotary locking cylinder is started to control the locking part to rotate and separate from the positioning block. When the furnace door needs to be closed, the rotary locking cylinder is first started to control the locking part to rotate and contact the positioning block, and then the ejection cylinder is controlled to pull back the rotary locking cylinder.

[0005] According to the above technical solution, when the furnace door needs to be opened, the ejection cylinder will push the positioning block to eject the furnace door to open a 100mm gap first, and then perform ash extraction on the furnace body. After the ash extraction is completed, the rotary locking cylinder will be started to control the locking part to rotate and separate from the positioning block, so as to realize automatic release of the furnace door.

[0006] According to the above technical solution, a buffer portion is further provided on the locking portion. When the furnace door needs to be closed, the ejection cylinder will eject the rotary locking cylinder, and the buffer portion is driven to move to the explosion-proof safety position through the locking portion.

[0007] According to the above technical solution, a fixed plate is further provided on the furnace body, the ejection cylinder is installed on the fixed plate, the ejection cylinder is equipped with an ejection plate, and the rotary locking cylinder is installed on the ejection plate. The locking part includes a clamping positioning block, the clamping positioning block is installed on the rotary locking cylinder, and the clamping positioning block is installed with a clamping bolt. By driving the rotary locking cylinder to work, the clamping positioning block can drive the clamping bolt to rotate the clamping positioning block counterclockwise to align with the position of the positioning block, and then the rotary locking cylinder is pulled back by driving the ejection cylinder to work, and the clamping positioning block drives the clamping bolt to clamp the furnace door positioning block, thereby realizing locking between the furnace door and the furnace body.

[0008] On the contrary, when the automatic tilting casting is completed and the furnace door needs to be opened, first open the pit vent valve to restore the air pressure in the furnace body to atmospheric pressure. Then, drive the ejection cylinder to perform the ejection work, so that the ejection plate drives the ejection block to push the positioning block to move, and open the furnace door. At the same time, the rotary locking cylinder will move with the clamping positioning block under the push of the ejection plate, and the clamping bolt and the hydraulic buffer will move synchronously. When the furnace door opens to a gap of 100mm between the clamping bolts, automatic ash extraction begins. After the automatic ash extraction is completed, the rotary locking cylinder drives the clamping positioning block to rotate 90° in the opposite direction, so that the clamping bolt and the hydraulic buffer are turned away from the position of the positioning block. At this time, the furnace door and furnace cover can be fully opened manually to carry out conventional production operations such as adding materials.

[0009] According to the above technical solution, the buffer part further includes a hydraulic buffer, which is installed on the clamping positioning block. A buffer head is installed on the hydraulic buffer. When the pressure in the furnace body becomes abnormally high and an explosion occurs, the impact force generated by the explosion will push the furnace door to hit the buffer head. The buffer head will shrink into the furnace body and at the same time buffer the impact on the furnace door.

[0010] According to the above technical solution, when the furnace door and the furnace body are closed and locked, the furnace body will be vacuumed so that the furnace door is completely closed under the dual pressure of the cylinder and the vacuum. When the furnace is under negative pressure, the ejection cylinder will move forward to eject the ejection plate, and the ejection plate will drive the rotary locking cylinder and the clamping positioning block to move forward synchronously, so that the clamping bolt will be separated from the state of the clamping positioning block and move to the explosion-proof safety position. At this time, the clamping bolt will extend from the hydraulic buffer and contact the positioning block, entering the explosion-proof protection state.

[0011] According to the above technical solution, a top extension block is further provided on the ejector plate. When the furnace door needs to be opened for automatic tilt casting, the ejector plate is ejected by driving the ejector cylinder, so that the ejector plate drives the top extension block to push the positioning block to move, thereby realizing the opening of the furnace door.

[0012] According to the above technical solution, the ejector plate is further provided with a cylinder guide post, which can pass through the fixed plate pair and slide with the fixed plate, so that the ejector plate can be stably ejected or pulled back under the drive of the ejector cylinder.

[0013] According to the above technical solution, a handle is further provided on the oven door, so that the user can hold the handle to open the oven door.

[0014] Compared with the prior art, the beneficial effects of the present invention are: through the coordinated use of structures such as the ejection cylinder, the rotary locking cylinder, the clamping positioning block and the clamping bolt, the automatic locking or opening between the furnace door and the furnace body can be achieved, which reduces the labor intensity of the workers and has high work efficiency. At the same time, the hydraulic buffer and buffer head provided can replace the traditional explosion-proof chain function to achieve explosion-proof of the furnace door. The overall structure of the device is simple and compact, and it is easy, quick and efficient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a reference schematic diagram of the structural state of the furnace door of the present invention when it is opened 100mm.

[0017] Figure 2 This is a reference diagram of the overall structural state of the utility model.

[0018] Figure 3 This is a reference schematic diagram of the structural state of the buffer portion of the utility model being located in the explosion-proof safety position.

[0019] Figure 4 This is a reference schematic diagram of the structural state of the locking part of the utility model being rotated away from the furnace door positioning block.

[0020] Figure 5 For this utility model Figure 1 The reference diagram of the enlarged structural state at point A in the middle.

[0021] Figure 6 For this utility model Figure 2 The enlarged structural state reference diagram at point B is shown in the figure.

[0022] Explanation of the marks in the figure: 1. Furnace body; 2. Furnace door; 3. Fixed plate; 4. Ejector cylinder; 5. Ejector plate; 6. Cylinder guide column; 7. Ejection block; 8. Rotary locking cylinder; 9. Clamping positioning block; 10. Clamping bolt; 11. Hydraulic buffer; 12. Buffer head; 13. Furnace door positioning block; 14. Handle. DETAILED DESCRIPTION

[0023] The embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. The implementation methods of the present disclosure are explained below through specific examples. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification, which are further explained below in conjunction with the accompanying drawings.

[0024] See also Figure 1-6 It can be seen that the embodiment of the present utility model is an automatic opening and closing control device for a furnace door used for NdFeB strip smelting, comprising a furnace body 1 for smelting NdFeB strip smelting sheets, a furnace door 2 mounted on the furnace body 1, a fixed plate 3 provided on the furnace body 1, an ejection cylinder 4 mounted on the fixed plate 3, an ejection plate 5 mounted on the ejection cylinder 4, the ejection plate 5 can be driven to be ejected or pulled back by driving the ejection cylinder 4, a rotary locking cylinder 8 is mounted on the ejection plate 5, a locking portion is provided on the rotary locking cylinder 8, and the locking portion includes a pressing positioning block 9, The clamping positioning block 9 is mounted on the rotary locking cylinder 8. A clamping bolt 10 is provided on the clamping positioning block 9. A furnace door positioning block 13 is provided on the furnace door 2. By driving the rotary locking cylinder 8 to work, the clamping positioning block 9 can drive the clamping bolt 10 to rotate the clamping positioning block 90° counterclockwise to align it with the position of the furnace door positioning block 13. Then, the rotary locking cylinder 8 is pulled back by driving the ejection cylinder 4 to work. The clamping positioning block 9 drives the clamping bolt 10 to clamp the furnace door positioning block 13, thereby realizing the locking between the furnace door 2 and the furnace body 1.

[0025] Furthermore, a buffer portion is provided on the locking portion, and the buffer portion includes a hydraulic buffer 11, which is installed on the clamping positioning block 9. A buffer head 12 is installed on the hydraulic buffer 11. When the pressure in the furnace body 1 becomes abnormally high and an explosion occurs, the impact force generated by the explosion will push the furnace door 2 to hit the buffer head 12, and the buffer head 12 will shrink into the furnace body 1, and at the same time buffer the impact on the furnace door 2.

[0026] It is worth mentioning that: when the furnace door 2 and the furnace body 1 are closed and locked, the furnace body 1 will be vacuumed, so that the furnace door 2 is completely closed under the dual pressure of the cylinder and the vacuum. When the furnace is under negative pressure, the ejection cylinder 4 will move forward to eject the ejection plate 5, and the ejection plate 5 will drive the rotary locking cylinder 8 and the clamping positioning block 9 to move forward synchronously, so that the clamping bolt 10 will be separated from the clamping positioning block 9 and move to the explosion-proof safety position. At this time, the clamping bolt 10 will extend from the hydraulic buffer 11 and contact the furnace door positioning block 13, entering the explosion-proof protection state.

[0027] Furthermore, an extension block 7 is provided on the ejector plate 5. When the furnace door 2 needs to be opened for automatic tilting casting, the ejector plate 5 is ejected by driving the ejector cylinder 4, so that the ejector plate 5 can drive the extension block 7 to push the furnace door positioning block 13 to move, thereby realizing the opening of the furnace door 2.

[0028] Furthermore, when the automatic tilting casting is completed, the pit vent valve is opened first to restore the air pressure in the furnace body 1 to atmospheric pressure. The ejection cylinder 4 can be driven to perform the ejection work first, so that the ejection plate 5 drives the ejection block 7 to push the furnace door positioning block 13 to move, and the furnace door 2 is pushed open. At the same time, the rotary locking cylinder 8 will move with the clamping positioning block 9 under the push of the ejection plate 5, and the clamping bolt 10 and the hydraulic buffer 11 move synchronously. When the furnace door 2 opens the 100mm gap of the clamping bolt, automatic ash extraction begins. After the automatic ash extraction is completed, the rotary locking cylinder 8 drives the clamping positioning block 9 to rotate 90° in the opposite direction, so that the clamping bolt 10 and the hydraulic buffer 11 are turned away from the position of the furnace door positioning block 13. At this time, the furnace door and furnace cover can be manually opened to carry out the previous conventional production operations such as adding materials.

[0029] Furthermore, a cylinder guide column 6 is provided on the ejection plate 5, and the cylinder guide column 6 can pass through the fixed plate 3 and slide with the fixed plate 3, so that the ejection plate 5 can be stably ejected or pulled back under the drive of the ejection cylinder 4.

[0030] Furthermore, a handle 14 is provided on the oven door 2 , so that the user can conveniently hold the handle 14 to open the oven door 2 .

[0031] In summary, the above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited to this. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A furnace door automatic opening and closing control device for NdFeB strip melting, comprising a furnace body (1) and a furnace door (2) mounted on the furnace body (1), characterized in that: The furnace body (1) is provided with an ejection cylinder (4), and a rotary locking cylinder (8) is provided on the ejection cylinder (4). A locking portion is mounted on the rotary locking cylinder (8). A positioning block (13) is provided on the furnace door (2). The locking portion is controlled to rotate to a specific angle by the rotary locking cylinder (8), so that the locking portion contacts or leaves the positioning block (13), thereby achieving the locking portion engaging with or releasing the furnace door (2). The ejection cylinder (4) is cooperated to pull back or eject the rotary locking cylinder (8), so that the locking portion presses or releases the positioning block (13), thereby achieving the locking or opening between the furnace door (2) and the furnace body (1).

2. The automatic opening and closing control device for the furnace door of NdFeB strip melting according to claim 1 is characterized in that: When the furnace door (2) needs to be opened, the ejection cylinder (4) is first controlled to eject the rotary locking cylinder (8), and then the rotary locking cylinder (8) is started to control the locking portion to rotate and separate from the positioning block (13). When the furnace door (2) needs to be closed, the rotary locking cylinder (8) is first started to control the locking portion to rotate and contact with the positioning block (13), and then the ejection cylinder (4) is controlled to pull back the rotary locking cylinder (8).

3. The automatic opening and closing control device for the furnace door of NdFeB strip-swinging smelting according to claim 2 is characterized in that: When the furnace door (2) needs to be opened, the ejection cylinder (4) pushes the positioning block (13) to eject the furnace door (2) to first open a gap of 100 mm, and then perform ash extraction on the furnace body (1). After the ash extraction is completed, the rotary locking cylinder (8) is started to control the locking part and the positioning block (13) to rotate and separate, thereby realizing automatic release of the furnace door (2).

4. The automatic opening and closing control device for the furnace door of NdFeB strip-swing smelting according to claim 2 is characterized in that: A buffer portion is provided on the locking portion. When the furnace door (2) is to be closed, the ejection cylinder (4) ejects the rotary locking cylinder (8), and the buffer portion is driven to move to an explosion-proof safety position through the locking portion.

5. The automatic opening and closing control device for the furnace door of NdFeB strip-swing smelting according to claim 1 is characterized in that: The furnace body (1) is provided with a fixed plate (3), an ejection cylinder (4) is mounted on the fixed plate (3), an ejection plate (5) is mounted on the ejection cylinder (4), and a rotary locking cylinder (8) is mounted on the ejection plate (5). The locking portion includes a clamping positioning block (9), the clamping positioning block (9) is mounted on the rotary locking cylinder (8), and a clamping bolt (10) is mounted on the clamping positioning block (9). By driving the rotary locking cylinder (8) to work, the clamping positioning block (9) can drive the clamping bolt (10) to rotate and contact the positioning block (13), and then the ejection cylinder (4) is controlled to pull back the rotary locking cylinder (8), and the clamping positioning block (9) drives the clamping bolt (10) to clamp the furnace door positioning block (13), thereby achieving locking between the furnace door (2) and the furnace body (1).

6. The automatic opening and closing control device for the furnace door of NdFeB strip-swinging smelting according to claim 4 is characterized in that: The buffer portion comprises a hydraulic buffer (11), which is mounted on a pressing positioning block (9). A buffer head (12) is mounted on the hydraulic buffer (11). When the pressure in the furnace body (1) increases abnormally and an explosion occurs, the impact force generated by the explosion pushes the furnace door (2) to hit the buffer head (12). The buffer head (12) contracts into the furnace body (1) and simultaneously buffers the impact on the furnace door (2).

7. The automatic opening and closing control device for the furnace door of NdFeB strip-swinging smelting according to claim 6 is characterized in that: When the furnace door (2) and the furnace body (1) are closed and locked, the ejection cylinder (4) will move forward to eject the ejection plate (5), and the ejection plate (5) will drive the rotary locking cylinder (8) and the clamping positioning block (9) to move forward synchronously, so that the clamping bolt (10) is separated from the clamping positioning block (9), and the buffer part moves to the explosion-proof safety position. At this time, the clamping bolt (10) will extend from the hydraulic buffer (11) and contact the positioning block (13), entering the explosion-proof protection state.

8. The automatic opening and closing control device for the furnace door of NdFeB strip-swinging smelting according to claim 5 is characterized in that: The ejector plate (5) is provided with an ejection stopper (7). When the furnace door (2) needs to be opened for automatic tilting casting, the ejector plate (5) is ejected by driving the ejection cylinder (4). The ejector plate (5) can drive the ejection stopper (7) to push the positioning block (13) to move, thereby realizing the opening of the furnace door (2).

9. The automatic opening and closing control device for the furnace door of NdFeB strip-swinging smelting according to claim 8, characterized in that: The ejection plate (5) is provided with a cylinder guide column (6), which can pass through the fixed plate (3) and slide with the fixed plate (3), so that the ejection plate (5) can be stably ejected or pulled back under the drive of the ejection cylinder (4).

10. The automatic opening and closing control device for a furnace door used for NdFeB strip-swinging smelting according to claim 1, characterized in that: The oven door (2) is provided with a handle (14), which facilitates a user to hold the handle (14) and open the oven door (2).

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