Automatic cutting equipment for finished magnesia-calcia spinel refractory bricks

Abstract

The application belongs to the technical field of magnesium calcium brick production, and particularly relates to an automatic cutting equipment for finished magnesium calcium spinel refractory bricks. The existing cutting mode is basically semi-automatic operation, and the cutting knife needs to be manually controlled to rise and fall, which is inconvenient. The present application provides the following scheme. The equipment comprises a support, a conveying motor is fixedly installed on the left side of the support, a driving roller is rotatably connected in the support, the rear end of the driving roller extends to the rear side of the support, the output shaft of the conveying motor and the driving roller are connected with the same transmission belt, a plurality of supporting rollers are rotatably connected in the support at equal intervals, and the plurality of supporting rollers and the driving roller are connected with the same conveying belt. In the application, the magnesium calcium brick blank can be conveyed, cut into strips and cut into blocks when the conveying motor and the driving motor are started, so that automatic cutting can be realized when the magnesium calcium brick is cut, and the cutting efficiency can be effectively improved, and the application has good practicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of magnesium calcium brick production, and particularly relates to automatic cutting equipment for finished magnesium calcium spinel refractory bricks. BACKGROUND

[0002] According to the announcement number: CN210650008U, a kind of magnesium calcium spinel refractory brick low-energy consumption processing device is disclosed, it relates to the field of refractory brick processing.The magnesium calcium spinel refractory brick low-energy consumption processing device, including base and processing bin, processing bin is fixedly connected at the top of base, the inner wall of processing bin is equipped with grinding device, processing bin side wall is equipped with air inlet fan, the side of processing bin away from air inlet fan is provided with air outlet fan, fan mounting plate is fixed in the side wall of processing bin by bolt, the side wall of processing bin is fixedly connected with water tank, water tank is located below air outlet fan, the outlet end of air outlet fan is fixedly connected with pipeline, pipeline is led into water tank, the bottom inner wall of processing bin is fixedly connected with telescopic column, the top of telescopic column is fixedly connected with clamp, the inside side wall of processing bin is fixedly connected with guide dust device.The magnesium calcium spinel refractory brick low-energy consumption processing device can process the dust in processing bin, realizes the collection to slag block.

[0003] At present, magnesium calcium brick needs to be made into green body when being made, and large blocky magnesium calcium soil needs to be cut, but the existing cutting mode is basically semi-automatic operation, and the lifting of cutting knife needs to be controlled manually, so it is not convenient, therefore, the present application provides automatic cutting equipment for finished magnesium calcium spinel refractory bricks to solve the above problems. SUMMARY

[0004] Based on the technical problem of the existing cutting mode being basically semi-automatic operation, the lifting of cutting knife needing to be controlled manually and lacking convenience, the present application provides automatic cutting equipment for finished magnesium calcium spinel refractory bricks.

[0005] The automatic cutting equipment for finished magnesium calcium spinel refractory bricks provided by the present application includes a support, a conveying motor is fixedly installed on the left side of the support, a driving roller is rotatably connected in the support, the rear end of the driving roller extends to the rear side of the support, the output shaft of the conveying motor and the driving roller are connected with the same transmission belt, a plurality of supporting rollers are rotatably connected at equal intervals in the support, the plurality of supporting rollers and the driving roller are connected with the same conveying belt, a push plate is fixedly installed on the top left side of the conveying belt, a supporting plate is fixedly installed on the top right side of the support, an installation box is fixedly installed on the right side of the support, a top rod is slidably connected to the top inner wall of the installation box, the top end of the top rod extends above the installation box and is connected with a cutting assembly, a transmission assembly is installed at the bottom of the installation box, the top of the transmission assembly extends into the installation box and is connected with the top rod, and a pneumatic assembly is connected to the transmission assembly.

[0006] By the above structure, after starting the conveying motor, the conveying belt can be driven to run, so that the magnesium calcium brick blank can be pushed to the right side, and the magnesium calcium brick blank can be conveyed to the supporting plate. Then the pneumatic assembly can be started to drive the transmission assembly to run, so that the magnesium calcium brick blank can be cut by the cutting assembly driven by the top rod to move downward. Therefore, the magnesium calcium brick blank can be cut automatically, and therefore has good practicability.

[0007] Preferably, the top left side of the supporting plate is fixedly provided with a mounting frame, and a leveling roller is rotatably connected in the mounting frame.

[0008] Further, the magnesium calcium brick blank can be pressed by the leveling roller when passing through the mounting frame, so that the magnesium calcium brick blank is in a flat state.

[0009] Preferably, the cutting assembly comprises a fixing frame, a plurality of cutting knives and a lower cutting knife. The fixing frame is fixedly installed at the top end of the top rod, penetrates the supporting plate, and the plurality of cutting knives are fixedly installed at the bottom of the fixing frame at equal intervals. A plurality of insertion holes are formed in the supporting plate at equal intervals, the cutting knives penetrate the corresponding insertion holes, and the lower cutting knife is fixedly installed on the inner wall of the top of the fixing frame.

[0010] Further, the magnesium calcium brick blank can be preliminarily cut by the plurality of cutting knives when passing through the fixing frame, and the lower cutting knife can move downward when the fixing frame moves downward with the top rod, so that the magnesium calcium brick blank can be cut into blocks.

[0011] Preferably, the transmission assembly comprises a power box, a piston plate, a transmission rod and a limiting member. The power box is fixedly installed at the bottom of the mounting box, the piston plate is sealingly and slidingly connected in the power box, the transmission rod is fixedly installed at the top of the piston plate, the top end of the transmission rod extends into the power box and is connected with the limiting member, the transmission rod is sealingly and slidingly connected with the inner wall of the bottom of the mounting box, the limiting member is connected with the top rod and the inner wall of the bottom of the mounting box, respectively, the pneumatic assembly is installed at the rear side of the power box, and the pneumatic assembly is connected with the power box.

[0012] Further, after the gas enters the power box, the piston plate can be driven to move longitudinally, so that the top rod can be driven by the limiting member to move longitudinally.

[0013] Preferably, the limiting member comprises a moving plate, a connecting frame and two limiting columns. The moving plate is slidingly connected in the mounting box, the connecting frame is fixedly installed at the bottom of the moving plate, the top rod penetrates the moving plate and is slidingly connected with the moving plate, the top end of the transmission rod is fixedly connected with the bottom of the connecting frame, and the two limiting columns are symmetrically fixedly installed on the inner wall of the bottom of the mounting box. The limiting column penetrates the inner wall of the bottom of the connecting frame and is slidingly connected with the inner wall of the bottom of the connecting frame.

[0014] Further, the connecting frame and the moving plate can be used to limit the longitudinal sliding of the top rod, so that the fixing frame can vertically move longitudinally.

[0015] Preferably, the top rod is sleeved with a compression spring below the moving plate, and the top end and the bottom end of the compression spring are fixedly connected with the bottom of the moving plate and the bottom end of the top rod, respectively.

[0016] Further, the compression spring can be used to elastically support the fixing frame through the top rod, so that a buffer allowance can be provided when the magnesium-calcium brick blank is cut, and excessive pressure on the supporting plate can be avoided.

[0017] Preferably, the pneumatic assembly comprises a gas source box, a first gas conveying pipe, a second gas conveying pipe, a sealing plate and a power member, the gas source box is fixedly installed on the rear side of the power box, the first gas conveying pipe is fixedly installed on the top right inner wall of the gas source box, the left end of the first gas conveying pipe extends into the power box and is fixedly connected with the top rear inner wall of the power box, the second gas conveying pipe is fixedly installed on the bottom left inner wall of the gas source box, and the left end of the second gas conveying pipe extends into the power box and is fixedly connected with the bottom rear inner wall of the power box, the sealing plate is sealingly and slidingly connected in the gas source box, the power member is installed on the rear side of the gas source box, and the front side of the power member extends into the gas source box and is connected with the rear side of the sealing plate.

[0018] Further, the sealing plate can be driven to move horizontally in the gas source box by starting the power member, so that the gas on the front side and the rear side of the sealing plate can be conveyed into the power box from the second gas conveying pipe and the first gas conveying pipe, respectively, and the sealing plate can move upward or downward.

[0019] Preferably, the power member comprises a support frame, a driving motor and a threaded member, the support frame is fixedly installed on the rear side of the gas source box, the driving motor is fixedly installed on the rear side of the support frame, the output shaft of the driving motor extends into the support frame and is connected with the threaded member, and the front side of the threaded member extends into the gas source box and is connected with the rear side of the sealing plate.

[0020] Further, the threaded member can be driven to rotate by starting the driving motor, so that driving force can be provided for the movement of the sealing plate.

[0021] Preferably, the threaded member comprises a screw rod and a threaded pipe, the screw rod is fixedly installed on the output shaft of the driving motor, the front end of the screw rod extends into the threaded pipe and is threadedly connected with the inner wall of the threaded pipe, and the front end of the threaded pipe extends into the gas source box and is fixedly connected with the rear side of the sealing plate.

[0022] Further, the threaded pipe can move horizontally when the screw rod rotates with the output shaft of the driving motor, so that the sealing plate can move.

[0023] Preferably, the rear side inner wall of the gas source box is fixedly provided with a sealing sleeve, and the threaded pipe penetrates through the sealing sleeve and is in sealing sliding connection with the inner wall of the sealing sleeve.

[0024] Further, the gas located at the rear side of the sealing plate can be prevented from leaking, and the thrust of the piston plate can be ensured.

[0025] The present application has the following advantages:

[0026] In the present application, the magnesium-calcium brick blank is placed on the conveying belt, and then the conveying motor is started to drive the transmission belt to run, so that the driving roller rotates. At this time, the conveying belt can run to convey the magnesium-calcium brick blank to the right side of the supporting plate. When the magnesium-calcium brick blank passes through the mounting frame, the magnesium-calcium brick blank can be leveled by the leveling roller, so that the magnesium-calcium brick blank is in a flat shape.

[0027] In the present application, when the magnesium-calcium brick blank moves, a plurality of cutting knives are used for cutting, so that the magnesium-calcium brick blank forms a plurality of strip-shaped blanks. After moving a distance, the driving motor is started to drive the screw to rotate. Under the action of the threaded transmission of the threaded pipe, the sealing plate moves to the rear side. When the sealing plate moves to the rear side, the gas is conveyed from the first gas conveying pipe to the power box, which pushes the piston plate to move downward. When the piston plate moves downward, the connecting frame is driven to move downward by the transmission rod. At this time, the fixed frame is driven to move downward by the moving plate and the top rod, so that the lower cutting knife moves downward to cut the magnesium-calcium brick strip-shaped blank, and small pieces of brick blank are formed.

[0028] In the present application, when the conveying motor and the driving motor are started, the magnesium-calcium brick blank can be conveyed, cut into strips and cut into pieces. When the magnesium-calcium brick is cut, automatic cutting can be realized, so that the cutting efficiency can be effectively improved, and good practicability is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A structure front view of an automatic cutting equipment for finished magnesium-calcium spinel refractory bricks is provided in the present application.

[0030] Figure 2 An attachment structure of the automatic cutting equipment for finished magnesium-calcium spinel refractory bricks is provided in the present application. Figure 1 A structure schematic diagram of part A is provided in the present application.

[0031] Figure 3 A fixed frame, a mounting box, a top rod, a plurality of cutting knives and a lower cutting knife connection structure three-dimensional diagram of the automatic cutting equipment for finished magnesium-calcium spinel refractory bricks is provided in the present application.

[0032] Figure 4It is a kind of automatic cutting equipment mounting box and power box internal structure side view of finished product magnesium calcium spinel refractory brick for the present application;

[0033] Figure 5 It is a kind of automatic cutting equipment drive motor, threaded tube and sealing plate connecting structure side view of finished product magnesium calcium spinel refractory brick for the present application;

[0034] Figure 6 It is a kind of automatic cutting equipment structure rear view of finished product magnesium calcium spinel refractory brick for the present application;

[0035] Figure 7 It is a kind of automatic cutting equipment of finished product magnesium calcium spinel refractory brick for the present application The connecting structure three-dimensional drawing of the supporting plate, the plurality of slitting knives and the mounting frame.

[0036] In the figure: 1, support; 2, conveying motor; 3, driving roller; 4, transmission belt; 5, supporting roller; 6, conveying belt; 7, supporting plate; 8, mounting frame; 9, leveling roller; 10, mounting box; 11, top rod; 12, fixed frame; 13, slitting knife; 14, lower cutter; 15, moving plate; 16, compression spring; 17, connecting frame; 18, limit column; 19, transmission rod; 20, power box; 21, piston plate; 22, gas source box; 23, support frame; 24, drive motor; 25, screw; 26, threaded tube; 27, first gas pipe; 28, second gas pipe; 29, sealing plate; 30, sealing sleeve. DETAILED DESCRIPTION

[0037] The present application will be further described below in conjunction with specific examples. EXAMPLE

[0038] REFERENCE Figures 1-7 In the embodiment, an automatic cutting equipment of finished product magnesium calcium spinel refractory brick is provided, which comprises a support 1, a conveying motor 2 is fixedly installed on the left side of the support 1, and a driving roller 3 is rotatably connected in the support 1, the rear end of the driving roller 3 extends to the rear side of the support 1, the output shaft of the conveying motor 2 and the driving roller 3 are connected with the same transmission belt 4, a plurality of supporting rollers 5 are rotatably connected in the support 1 at equal intervals, and the plurality of supporting rollers 5 and the driving roller 3 are connected with the same conveying belt 6, a push plate is fixedly installed on the top left side of the conveying belt 6, a supporting plate 7 is fixedly installed on the top right side of the support 1, and a mounting box 10 is fixedly installed on the right side of the support 1, a top rod 11 is slidably connected on the top inner wall of the mounting box 10, the top end of the top rod 11 extends above the mounting box 10 and is connected with a cutting assembly, a transmission assembly is installed at the bottom of the mounting box 10, the top of the transmission assembly extends into the mounting box 10 and is connected with the top rod 11, and a pneumatic assembly is connected on the transmission assembly.

[0039] By the above structure, after starting the conveying motor 2, the conveying belt 6 can be driven to run, so that the magnesium calcium brick blank can be pushed to the right side, and the magnesium calcium brick blank can be conveyed to the supporting plate 7. Then, the pneumatic assembly can be started to drive the transmission assembly to run, so that the cutting assembly can be driven to move downward by the jack 11 to cut the magnesium calcium brick blank. Therefore, the magnesium calcium brick blank can be cut automatically, and the device has good practicability.

[0040] In this embodiment, the left top of the supporting plate 7 is fixedly provided with a mounting bracket 8, and the mounting bracket 8 is rotatably connected with a leveling roller 9.

[0041] The leveling roller 9 can press the magnesium calcium brick blank when the magnesium calcium brick blank passes through the mounting bracket 8, so that the magnesium calcium brick blank is in a flat state.

[0042] In this embodiment, as shown in Figure 2 The cutting assembly includes a fixing frame 12, a plurality of cutting knives 13, and a lower cutting knife 14. The fixing frame 12 is fixedly installed at the top end of the jack 11 and penetrates the supporting plate 7. The plurality of cutting knives 13 are fixedly installed at the bottom of the fixing frame 12 at equal intervals. A plurality of insertion holes are formed in the supporting plate 7 at equal intervals, and the cutting knives 13 penetrate the corresponding insertion holes. The lower cutting knife 14 is fixedly installed on the top inner wall of the fixing frame 12.

[0043] The plurality of cutting knives 13 can preliminarily cut the magnesium calcium brick blank when the magnesium calcium brick blank passes through the fixing frame 12. When the fixing frame 12 moves downward with the jack 11, the lower cutting knife 14 can move downward to cut the magnesium calcium brick blank into blocks.

[0044] In this embodiment, as shown in Figure 4 The transmission assembly includes a power box 20, a piston plate 21, a transmission rod 19, and a limiting member. The power box 20 is fixedly installed at the bottom of the mounting box 10. The piston plate 21 is sealingly and slidably connected in the power box 20. The transmission rod 19 is fixedly installed at the top of the piston plate 21. The top end of the transmission rod 19 extends into the power box 20 and is connected with the limiting member. The transmission rod 19 is sealingly and slidably connected with the bottom inner wall of the mounting box 10. The limiting member is connected with the jack 11 and the bottom inner wall of the mounting box 10, respectively. The pneumatic assembly is installed at the rear side of the power box 20 and communicates with the power box 20.

[0045] After the gas enters the power box 20, the piston plate 21 can be driven to move longitudinally, so that the limiting member can provide driving force to the jack 11 to drive the fixing frame 12 to move longitudinally.

[0046] In this embodiment, as shown in Figure 4As shown in the figure, the limiting member comprises a moving plate 15, a connecting frame 17 and two limiting columns 18, the moving plate 15 is slidingly connected in the mounting box 10, the connecting frame 17 is fixedly installed at the bottom of the moving plate 15, the top rod 11 penetrates through the moving plate 15 and is slidingly connected with the moving plate 15, the top end of the transmission rod 19 is fixedly connected with the bottom of the connecting frame 17, and the two limiting columns 18 are symmetrically fixedly installed on the inner wall of the bottom of the mounting box 10, the limiting column 18 penetrates through the bottom inner wall of the connecting frame 17 and is slidingly connected with the bottom inner wall of the connecting frame 17.

[0047] The connecting frame 17 and the moving plate 15 can longitudinally slide and limit the top rod 11, so that the fixing frame 12 vertically moves longitudinally.

[0048] In the embodiment, as shown in the figure, Figure 4 The compression spring 16 is sleeved on the top rod 11 below the moving plate 15, and the top end and the bottom end of the compression spring 16 are fixedly connected with the bottom of the moving plate 15 and the bottom end of the top rod 11 respectively.

[0049] The compression spring 16 can elastically support the fixing frame 12 through the top rod 11, so that a buffer allowance can be provided when the magnesium-calcium brick blank is cut, and excessive pressure on the supporting plate 7 can be avoided.

[0050] In the embodiment, the pneumatic assembly comprises a gas source box 22, a first gas conveying pipe 27, a second gas conveying pipe 28, a sealing plate 29 and a power member, the gas source box 22 is fixedly installed at the rear side of the power box 20, the first gas conveying pipe 27 is fixedly installed on the top right inner wall of the gas source box 22, the left end of the first gas conveying pipe 27 extends into the power box 20 and is fixedly connected with the top rear inner wall of the power box 20, the second gas conveying pipe 28 is fixedly installed on the bottom left inner wall of the gas source box 22, and the left end of the second gas conveying pipe 28 extends into the power box 20 and is fixedly connected with the bottom rear inner wall of the power box 20, the sealing plate 29 is sealingly and slidingly connected in the gas source box 22, and the power member is installed at the rear side of the gas source box 22, the front side of the power member extends into the gas source box 22 and is connected with the rear side of the sealing plate 29.

[0051] The power member is started to drive the sealing plate 29 to move horizontally in the gas source box 22, so that the gas on the front side and the rear side of the sealing plate 29 is conveyed into the power box 20 by the second gas conveying pipe 28 and the first gas conveying pipe 27 respectively, and the sealing plate 29 moves upward or downward.

[0052] In the embodiment, as shown in the figure, Figure 5As shown, the power component comprises a support frame 23, a driving motor 24 and a threaded member, the support frame 23 is fixedly installed at the rear side of the air source box 22, the driving motor 24 is fixedly installed at the rear side of the support frame 23, the output shaft of the driving motor 24 extends into the support frame 23 and is connected with the threaded member, the front side of the threaded member extends into the air source box 22 and is connected with the rear side of the sealing plate 29.

[0053] By starting the driving motor 24, the threaded member can be driven to operate, so as to provide driving force for moving the sealing plate 29.

[0054] In this embodiment, as shown in the figure, Figure 5 the threaded member comprises a screw rod 25 and a threaded tube 26, the screw rod 25 is fixedly installed on the output shaft of the driving motor 24, and the front end of the screw rod 25 extends into the threaded tube 26 and is threadedly connected with the inner wall of the threaded tube 26, the front end of the threaded tube 26 extends into the air source box 22 and is fixedly connected with the rear side of the sealing plate 29.

[0055] When the screw rod 25 rotates with the output shaft of the driving motor 24, the threaded tube 26 can move transversely, so as to move the sealing plate 29.

[0056] In this embodiment, as shown in the figure, Figure 5 the rear side inner wall of the air source box 22 is fixedly installed with a sealing sleeve 30, and the threaded tube 26 penetrates through the sealing sleeve 30 and is sealingly and slidably connected with the inner wall of the sealing sleeve 30.

[0057] The gas located at the rear side of the sealing plate 29 can be prevented from leaking, so as to ensure that the thrust on the piston plate 21 will not be weakened.

[0058] In this embodiment, after the magnesium calcium brick blank is placed on the conveying belt 6, the conveying motor 2 can be started to drive the transmission belt 4 to run, so that the driving roller 3 rotates, and the conveying belt 6 runs to convey the magnesium calcium brick blank to the right side of the supporting plate 7. When the magnesium calcium brick blank passes through the mounting frame 8, the magnesium calcium brick blank can be flattened by the flattening roller 9, so that the magnesium calcium brick blank is in a flat shape. When the magnesium calcium brick blank moves, the magnesium calcium brick blank can be cut into a plurality of strip-shaped blanks by the plurality of cutting knives 13. After moving a distance, the driving motor 24 is started to drive the screw 25 to rotate, which moves the sealing plate 29 to the rear side under the threaded transmission action of the threaded pipe 26. When the sealing plate 29 moves to the rear side, the gas behind the sealing plate 29 is conveyed from the first gas conveying pipe 27 to the power box 20. When the air pressure above the piston plate 21 increases, the piston plate 21 is pushed downward. When the piston plate 21 moves downward, the connecting frame 17 is driven downward by the transmission rod 19. At this time, the fixed frame 12 is driven downward by the moving plate 15 and the top rod 11, so that the lower cutting knife 14 moves downward to cut the magnesium calcium brick strip-shaped blank to form small pieces of brick blank. As described above, when the magnesium calcium brick blank is cut, automatic cutting can be realized, so that the cutting efficiency can be effectively improved, and good practicability is achieved.

[0059] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An automatic cutting device for finished magnesia-calcia spinel refractory bricks, comprising a support (1), characterized in that, The left side of the support (1) is fixedly installed with a conveying motor (2), and a driving roller (3) is rotatably connected in the support (1), the rear end of the driving roller (3) extends to the rear side of the support (1), the output shaft of the conveying motor (2) and the driving roller (3) are drivingly connected with the same transmission belt (4), a plurality of supporting rollers (5) are rotatably connected in the support (1) at equal intervals, and the plurality of supporting rollers (5) and the driving roller (3) are drivingly connected with the same conveying belt (6), the top left side of the conveying belt (6) is fixedly installed with a push plate, the top right side of the support (1) is fixedly installed with a supporting plate (7), and the right side of the support (1) is fixedly installed with a mounting box (10), a top rod (11) is slidingly connected to the top inner wall of the mounting box (10), the top end of the top rod (11) extends above the mounting box (10) and is connected with a cutting assembly, a transmission assembly is mounted at the bottom of the mounting box (10), the top of the transmission assembly extends into the mounting box (10) and is connected with the top rod (11), a pneumatic assembly is connected to the transmission assembly, the cutting assembly comprises a fixing frame (12), a plurality of slitting knives (13) and a lower cutting knife (14), the fixing frame (12) is fixedly installed at the top end of the top rod (11), the fixing frame (12) penetrates the supporting plate (7), and the plurality of slitting knives (13) are fixedly installed at equal intervals at the bottom of the fixing frame (12), a plurality of insertion holes are formed at equal intervals in the supporting plate (7), the slitting knives (13) penetrate the corresponding insertion holes, and the lower cutting knife (14) is fixedly installed on the top inner wall of the fixing frame (12).

2. The automatic cutting device for finished magnesia-calcia spinel refractory bricks according to claim 1, characterized in that, The top left side of the supporting plate (7) is fixedly installed with a mounting frame (8), and the mounting frame (8) is rotatably connected with a leveling roller (9) therein.

3. The automatic cutting device for finished magnesia-calcia spinel refractory bricks according to claim 1, characterized in that, The transmission assembly comprises a power box (20), a piston plate (21), a transmission rod (19) and a limiting member, the power box (20) is fixedly installed at the bottom of the mounting box (10), the piston plate (21) is sealingly and slidingly connected in the power box (20), the transmission rod (19) is fixedly installed at the top of the piston plate (21), the top end of the transmission rod (19) extends into the power box (20) and is connected with the limiting member, the transmission rod (19) is sealingly and slidingly connected with the bottom inner wall of the mounting box (10), and the limiting member is connected with the top rod (11) and the bottom inner wall of the mounting box (10) respectively, the pneumatic assembly is installed at the rear side of the power box (20) and communicates with the power box (20).

4. The automatic cutting device for finished magnesia-calcia spinel refractory bricks according to claim 3, characterized in that, The limiting member comprises a moving plate (15), a connecting frame (17) and two limiting columns (18), the moving plate (15) is slidingly connected in the mounting box (10), the connecting frame (17) is fixedly installed at the bottom of the moving plate (15), the top rod (11) penetrates the moving plate (15) and is slidingly connected with the moving plate (15), the top end of the transmission rod (19) is fixedly connected with the bottom of the connecting frame (17), and the two limiting columns (18) are symmetrically fixedly installed on the bottom inner wall of the mounting box (10), the limiting column (18) penetrates the bottom inner wall of the connecting frame (17) and is slidingly connected with the bottom inner wall of the connecting frame (17).

5. The automatic cutting device for finished magnesia-calcia spinel refractory bricks according to claim 4, characterized in that, The top rod (11) is sleeved with a compression spring (16) below the moving plate (15), and the top end and the bottom end of the compression spring (16) are fixedly connected with the bottom of the moving plate (15) and the bottom end of the top rod (11) respectively.

6. The automatic cutting device for finished magnesia-calcia spinel refractory bricks according to claim 3, characterized in that, The pneumatic assembly comprises a gas source box (22), a first gas conveying pipe (27), a second gas conveying pipe (28), a sealing plate (29) and a power member, the gas source box (22) is fixedly installed on the rear side of the power box (20), the first gas conveying pipe (27) is fixedly installed on the top right inner wall of the gas source box (22), the left end of the first gas conveying pipe (27) extends into the power box (20) and is fixedly connected with the rear side top inner wall of the power box (20), the second gas conveying pipe (28) is fixedly installed on the bottom left inner wall of the gas source box (22), and the left end of the second gas conveying pipe (28) extends into the power box (20) and is fixedly connected with the rear side bottom inner wall of the power box (20), the sealing plate (29) is sealingly and slidably connected in the gas source box (22), and the power member is installed on the rear side of the gas source box (22), the front side of the power member extends into the gas source box (22) and is connected with the rear side of the sealing plate (29).

7. The automatic cutting device for finished magnesia-calcia spinel refractory bricks according to claim 6, characterized in that, The power member comprises a support frame (23), a driving motor (24) and a threaded member, the support frame (23) is fixedly installed on the rear side of the gas source box (22), the driving motor (24) is fixedly installed on the rear side of the support frame (23), the output shaft of the driving motor (24) extends into the support frame (23) and is connected with the threaded member, and the front side of the threaded member extends into the gas source box (22) and is connected with the rear side of the sealing plate (29).

8. The automatic cutting device for finished magnesia-calcia spinel refractory bricks according to claim 7, characterized in that, The threaded member comprises a screw rod (25) and a threaded pipe (26), the screw rod (25) is fixedly installed on the output shaft of the driving motor (24), the front end of the screw rod (25) extends into the threaded pipe (26) and is threadedly connected with the inner wall of the threaded pipe (26), and the front end of the threaded pipe (26) extends into the gas source box (22) and is fixedly connected with the rear side of the sealing plate (29).

9. The automatic cutting device for finished magnesia-calcia spinel refractory bricks according to claim 8, characterized in that, The rear inner wall of the gas source box (22) is fixedly installed with a sealing sleeve (30), and the threaded pipe (26) penetrates through the sealing sleeve (30) and is sealingly and slidably connected with the inner wall of the sealing sleeve (30).

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