Die pressing device for refractory brick production

Abstract

The invention relates to the field of refractory brick production, and discloses a die pressing device for refractory brick production, which comprises a rack, a combined die and a driving mechanism. According to the device, through the arranged dust collection block, after an extrusion head enters a mold cavity composed of a plurality of mold blocks, a sealing head slides, at the moment, due to the fact that a gap between the extrusion head and a combined mold is small, suction force is generated through movement of the sealing head, and powder particles raised through extrusion of the extrusion head are sucked into a first circular groove; powder particles are prevented from being sprayed out from a gap between the extrusion head and the combination die to pollute a station and harm the body health of operators; and the first sliding column slides back to push out powder particles in the first circular groove, and the pushed-out powder particles can be scattered on the refractory green brick subjected to primary extrusion forming at the moment, so that the situation that after coining, materials on the top face of the refractory green brick are adsorbed on the extrusion head, dents appear on the top face of the refractory green brick after the extrusion head returns, and follow-up sintering production is affected is avoided.

Description

Technical Field

[0001] This application relates to the technical field of refractory brick production, and particularly to a pressing die device for refractory brick production. Background Art

[0002] Refractory bricks are building materials used in high-temperature environments. They are mainly made of materials such as clay, alumina, and silicates. After grinding the above raw materials into particles or powders, they are formed by stamping and sintering. When stamping and forming, multiple fine pressings are carried out after the initial extrusion to improve the size and surface finish of the brick blank, so that a dense glaze surface is formed during the sintering process of the brick blank.

[0003] During the initial downward pressing, when the pressing head enters the cavity, due to the small gap between the pressing head and the cavity, the air in the cavity cannot be discharged smoothly. When the pressing head continues to move downward, the air in the cavity is compressed and quickly ejected from the side of the pressing head. At the same time, the ejected air will drive the powder material in the cavity to fly out. At this time, the flying powder will not only pollute the environment where the production equipment is located, but also affect the physical health of nearby operators. Summary of the Invention

[0004] This application proposes a pressing die device for refractory brick production, which has the advantage of preventing powder particles from splashing, and is used to solve the problem that powder particles splash out when the extrusion head enters the cavity in the prior art.

[0005] To achieve the above object, this application adopts the following technical solution: A pressing die device for refractory brick production.

[0006] A pressing die device for refractory brick production includes a frame, the frame includes a base, symmetric side plates are fixedly provided on the top surface of the base, symmetric guide columns are fixedly connected to the inner side surfaces of the side plates, a mold groove is opened on the top surface of the base, and further includes:

[0007] A combined mold, the combined mold includes a plurality of mold blocks, a dust suction block is fixedly connected inside the mold block, a fixed pipe is fixedly connected to the outer side surface of the dust suction block, first inclined grooves are opened on the upper and lower side surfaces of the dust suction block, a first circular groove is opened on the inner side surface of the dust suction block, a first sliding column is slidably sleeved in the first circular groove, one end of the first sliding column is fixedly connected with a sealing head, the other end of the first sliding column is located inside the fixed pipe, a first magnet block is fixedly connected in the first inclined groove, and a second magnet block is fixedly connected in the sealing head;

[0008] A driving mechanism, the driving mechanism includes a protective shell fixedly connected to the top surface of the base, and the driving mechanism drives the first sliding column to slide in the first circular groove.

[0009] Preferably, a tension spring is sleeved on the first sliding column, and one end of the tension spring is fixedly connected to the outer side surface of the mold block.

[0010] Preferably, the N pole of the first magnet block faces the first circular groove, and the N pole of the second magnet block faces the inner side surface of the mold block.

[0011] Preferably, the frame further includes a top frame fixedly connected to the top surface of the side plate. An installation frame is slidably connected between the two side plates. The bottom surface of the installation frame is fixedly connected with an extrusion head and two symmetric pressing blocks. Four symmetric installation grooves and a first sliding groove are formed on the top surface of the base.

[0012] Preferably, a mold frame is fixedly connected inside the base. The mold frame is located directly below the mold groove, and a secondary hydraulic cylinder is fixedly connected inside the mold frame.

[0013] Preferably, a sliding frame is fixedly connected inside the installation groove. A side frame is slidably connected to the sliding frame. A sliding rod is fixedly connected between two adjacent side frames on the outer side surface of the mold block. Symmetric sliding push blocks are slidably sleeved on the sliding rod. A second spring is elastically connected between the sliding push block and the adjacent side frame.

[0014] Preferably, a guiding sliding column is fixedly connected to the side surface of the sliding push block away from the mold block. A triangular groove is formed on the side surface of the guiding column facing the sliding push block. The guiding sliding column is slidably connected in the triangular groove.

[0015] Preferably, a first inclined block is slidably connected in the first sliding groove. A connecting sliding column is slidably connected in the fixed pipe. The connecting sliding column is fixedly connected to the first sliding column. A connecting plate is fixedly connected between the two first inclined blocks. The connecting sliding column is fixedly connected to the side surface of the connecting plate.

[0016] Preferably, a pressing plate is fixedly connected to the sliding rod. A penetrating groove located directly above the pressing plate is formed on the top surface of the protective shell. The pressing block, the penetrating groove, and the pressing plate are in the same vertical direction. A second inclined block is fixedly connected to the top surface of the base. A return spring is elastically connected between the sliding frame and the protective shell.

[0017] Preferably, a fixed angle block is fixedly connected to the inner side surface of the first inclined groove. The side surface of the fixed angle block abuts against the first magnet block. A front cover is fixedly connected to one end of the sealing head facing the inner side surface of the mold block.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. In the present invention, through the arranged dust suction block, after the extrusion head enters the cavity of the combined die composed of multiple die blocks, as the extrusion head moves downward, at this time, the pressing block presses against the pressing plate and presses it down. Through the cooperation of the sliding push block and the first inclined block, the first sliding column is thus pulled towards the outer side of the die block. At this time, as the first sliding column slides, the sealing head slides synchronously. At this time, due to the small gap between the extrusion head and the combined die, the movement of the sealing head generates suction, thereby sucking the powder particles lifted by the extrusion of the extrusion head into the first circular groove, avoiding the powder particles from spraying out from the gap between the extrusion head and the combined die, and preventing the pollution of the working station and the harm to the physical health of the operators; and as the extrusion head is controlled to return, at this time, under the action of the tension spring, the first sliding column slides back, thereby pushing out the powder particles in the first circular groove. At this time, the pushed-out powder particles will be scattered on the refractory brick blank formed by the initial extrusion, thereby avoiding that after fine pressing, the material on the top surface of the refractory brick blank adheres to the extrusion head, causing dents on the top surface of the refractory brick blank after the extrusion head returns, which affects the subsequent sintering production.

[0020] 2. Secondly, through the first magnet block arranged in the dust suction block and the second magnet block arranged in the sealing head, when the sealing head returns under the action of the tension spring, since the N pole of the second magnet block faces the N pole of the first magnet block, the return sliding speed of the sealing head is slowed down, so that the powder particles pushed out by the sealing head fall on the refractory brick blank at a lower speed, avoiding that when the sealing head returns quickly, the powder particles inhaled in the first circular groove are quickly pushed outwards and the powder particles are lifted, further preventing the powder particles from polluting the equipment production environment and harming the physical health of the operators.

[0021] 3. Finally, a pressing block that moves synchronously with the extrusion head is used to make the driving mechanism work. The first sliding column is driven by the pressing block to move synchronously with the extrusion head, not only making the dust suction work of the dust suction block synchronous with the extrusion of the extrusion head, but also the faster the extrusion head moves, the greater the suction generated by the movement of the first sliding column, enabling the dust suction block to automatically adapt to the extrusion speed of the extrusion head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles of the present application in a clear and understandable manner.

[0023] Referring to the drawings, the present disclosure can be more clearly understood according to the following detailed description, wherein:

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a schematic cross-sectional structure diagram of the base of the present invention;

[0026] Figure 3Schematic diagram of the combined die structure in the present invention;

[0027] Figure 4 Schematic cross-sectional structure diagram of the dust suction block;

[0028] Figure 5 Schematic structure diagram of the driving mechanism;

[0029] Figure 6 Schematic partial structure diagram of the driving mechanism;

[0030] Figure 7 Schematic structure diagram of the sliding frame, sliding rod, and sliding push block.

[0031] Wherein: 1. Frame; 11. Base; 12. Side plate; 13. Top frame; 14. Extrusion head; 15. Die groove; 16. Die holder; 17. Sub-hydraulic cylinder; 18. Installation groove; 19. First chute; 110. Guide post; 111. Pressing block; 2. Combined die; 21. Die block; 22. Dust suction block; 23. Fixed pipe; 24. First round groove; 25. First inclined groove; 26. First sliding column; 27. First magnet block; 28. Sealing head; 29. Second magnet block; 210. Tension spring; 211. Fixed angle block; 212. Front cover; 3. Driving mechanism; 31. Protective shell; 32. Sliding frame; 33. Side frame; 34. Sliding rod; 35. Sliding push block; 36. Second spring; 37. Guide sliding column; 38. Triangular groove; 39. Pressure plate; 310. First inclined block; 311. Connecting sliding column; 312. Connecting plate; 313. Second inclined block; 314. Return spring. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0033] Please refer to Figures 1 to 7 , the die pressing device for the production of refractory bricks in this embodiment includes a frame 1. The frame 1 includes a base 11. Symmetrical side plates 12 are fixedly provided on the top surface of the base 11. Symmetrical guide posts 110 are fixedly connected to the inner side surfaces of the side plates 12. A die groove 15 is opened on the top surface of the base 11. It further includes:

[0034] Combined mold 2, the combined mold 2 includes a plurality of mold blocks 21, a dust suction block 22 is fixedly connected inside the mold block 21, a fixed pipe 23 is fixedly connected to the outer side surface of the dust suction block 22, first inclined grooves 25 are formed on the upper and lower side surfaces of the dust suction block 22, a first circular groove 24 is formed on the inner side surface of the dust suction block 22, a first sliding column 26 is slidably sleeved in the first circular groove 24, one end of the first sliding column 26 is fixedly connected with a closing head 28, the other end of the first sliding column 26 is located inside the fixed pipe 23, a first magnet block 27 is fixedly connected in the first inclined groove 25, and a second magnet block 29 is fixedly connected in the closing head 28;

[0035] Driving mechanism 3, the driving mechanism 3 includes a protective shell 31 fixedly connected to the top surface of the base 11, and the driving mechanism 3 drives the first sliding column 26 to slide in the first circular groove 24.

[0036] In the present invention, through the arranged dust suction block 22, after the extrusion head 14 enters the cavity of the combined mold 2 composed of a plurality of mold blocks 21, as the extrusion head 14 moves downward, at this time, the pressing block 111 abuts against the pressing plate 39 and presses it down. Through the cooperation of the sliding push block 35 and the first inclined block 310, the first sliding column 26 is pulled towards the outer side surface of the mold block 21. At this time, as the first sliding column 26 slides, the closing head 28 slides synchronously. At this time, due to the small gap between the extrusion head 14 and the combined mold 2, the movement of the closing head 28 generates suction, so as to suck the powder particles lifted by the extrusion of the extrusion head 14 into the first circular groove 24, avoiding the powder particles from spraying out from the gap between the extrusion head 14 and the combined mold 2, and avoiding polluting the working station and endangering the physical health of the operators; and as the extrusion head 14 is controlled to return, at this time, under the action of the tension spring 210, the first sliding column 26 slides back, so as to push out the powder particles in the first circular groove 24. At this time, the pushed powder particles will be scattered on the initially extruded refractory brick blank, so as to avoid that after fine pressing, the material on the top surface of the refractory brick blank adheres to the extrusion head 14, causing dents on the top surface of the refractory brick blank after the extrusion head 14 returns, affecting subsequent sintering production.

[0037] Secondly, through the first magnet block 27 arranged in the dust suction block 22 and the second magnet block 29 arranged in the closing head 28, when the closing head 28 returns under the action of the tension spring 210, since the N pole of the second magnet block 29 faces the N pole of the first magnet block 27, the return sliding speed of the closing head 28 is slowed down, so that the powder particles pushed out by the closing head 28 fall on the refractory brick blank at a lower speed, avoiding that when the closing head 28 returns quickly, the powder particles inhaled in the first circular groove 24 are quickly pushed outwards and the powder particles are lifted, further polluting the equipment production environment and endangering the physical health of the operators.

[0038] Finally, a pressing block 111 that moves synchronously with the extrusion head 14 is used to make the driving mechanism 3 work. Driven by the pressing block 111, the first sliding column 26 moves synchronously with the extrusion head 14, not only making the dust suction work of the dust suction block 22 synchronous with the extrusion of the extrusion head 14, but also, the faster the extrusion head 14 moves, the greater the suction force generated by the movement of the first sliding column 26, enabling the dust suction block 22 to automatically adapt to the extrusion speed of the extrusion head 14.

[0039] Wherein, a tension spring 210 is sleeved on the first sliding column 26. One end of the tension spring 210 is fixedly connected to the outer side surface of the die block 21. The N pole of the first magnet block 27 faces the first circular groove 24, and the N pole of the second magnet block 29 faces the inner side surface of the die block 21.

[0040] The first magnet block 27 and the second magnet block 29 arranged in this way can accelerate when the first sliding column 26 is pulled outwards and decelerate when the first sliding column 26 returns, so that the suction force is greater when attracting the powder particles stirred up by the extrusion head 14 pressing downwards, and when pushing the powder particles in the first circular groove 24 when the extrusion head 14 moves upwards, the pushing speed slows down, thus preventing the powder particles in the first circular groove 24 from being lifted up.

[0041] Wherein, the frame 1 further includes a top frame 13 fixedly connected to the top surface of the side plate 12. An installation frame is slidably connected between the two side plates 12. The bottom surface of the installation frame is fixedly connected with an extrusion head 14 and two symmetrical pressing blocks 111. Four symmetrically arranged installation grooves 18 and a first sliding groove 19 are formed on the top surface of the base 11. A die frame 16 is fixedly connected inside the base 11. The die frame 16 is located directly below the die groove 15, and a secondary hydraulic cylinder 17 is fixedly connected inside the die frame 16.

[0042] The setting of the die frame 16 facilitates the installation of the die block 21 to form a combined die 2, and also facilitates determining the position of the secondary hydraulic cylinder 17. Thus, during subsequent precision pressing and demolding, the center of the refractory brick blank is pushed by the secondary hydraulic cylinder 17, avoiding the refractory brick blank being subjected to an eccentric thrust and causing friction with the die block 21, thereby damaging the die block 21.

[0043] Wherein, a sliding frame 32 is fixedly connected inside the installation groove 18. A side frame 33 is slidably connected to the sliding frame 32. A sliding rod 34 is fixedly connected between two adjacent side frames 33 on the outer side surface of the die block 21. Symmetrical sliding push blocks 35 are slidably sleeved on the sliding rod 34. A second spring 36 is elastically connected between the sliding push block 35 and the adjacent side frame 33. The side of the sliding push block 35 away from the die block 21 is fixedly connected with a guiding sliding column 37. A triangular groove 38 is formed on the side surface of the guiding column 110 facing the sliding push block 35. The guiding sliding column 37 is slidably connected in the triangular groove 38. The shape of the triangular groove 38 is a right triangle, and the hypotenuse faces between the two guiding columns 110.

[0044] As the pressing plate 39 is pushed downward, the guiding sliding column 37 slides from the rightmost end of the horizontal part of the triangular groove 38 to the lowermost part. At this time, the sliding push block 35 pushes the first inclined block 310 to slide, thereby driving the connecting plate 312 to slide, and then driving the first sliding column 26 to slide outward of the combined die 2 through the connecting sliding column 311. When the guiding sliding column 37 enters the lowermost part of the vertical part, the sliding push block 35 no longer contacts the first inclined block 310, so that the first sliding column 26 returns under the pulling of the tension spring 210. At this time, when the subsequent fine pressing of the extrusion head 14 pushes the pressing plate 39, the sliding push block 35 is still at the lowermost part of the vertical part of the triangular groove 38, so that the sliding push block 35 still does not contact the first sliding column 26. Only after the extrusion is completed and the extrusion head 14 returns to the starting position, due to the loss of the push of the pressing block 111, the return spring 314 pushes the sliding rod 34 to move upward, and then drives the guiding sliding column 37 to slide to the leftmost end of the horizontal part of the triangular groove 38. At this time, under the push of the second spring 36, the sliding push block 35 returns to the initial position for reset. Through the above settings, it is prevented that during the fine pressing process, the sliding push block 35 and the first inclined block 310 rub frequently, resulting in premature damage to both of them.

[0045] Among them, a first inclined block 310 is slidably connected in the first sliding groove 19, a connecting sliding column 311 is slidably connected in the fixed pipe 23, the connecting sliding column 311 is fixedly connected to the first sliding column 26, a connecting plate 312 is fixedly connected between the two first inclined blocks 310, the connecting sliding column 311 is fixedly connected to the side surface of the connecting plate 312, a pressing plate 39 is fixedly connected to the sliding rod 34, a penetrating groove located directly above the pressing plate 39 is opened on the top surface of the protective shell 31, the pressing block 111, the penetrating groove and the pressing plate 39 are in the same vertical direction, a second inclined block 313 is fixedly connected to the top surface of the base 11, and a return spring 314 is elastically connected between the sliding frame 32 and the protective shell 31.

[0046] As described above, by driving the pressing plate 39 to move downward through the pressing block 111, and then making the first sliding column 26 slide through transmission, it not only has the advantage of high movement consistency, but also the suction force generated by the sliding of the first sliding column 26 can be automatically adjusted following the downward movement speed of the extrusion head 14.

[0047] Among them, a fixed angle block 211 is fixedly connected to the inner side surface of the first inclined groove 25, the side surface of the fixed angle block 211 abuts against the first magnet block 27, and a front cover 212 is fixedly connected to one end of the closing head 28 facing the inner side surface of the die block 21.

[0048] The front cover 212 is made of ferromagnetic material. After the extrusion head 14 moves downward into the combined die 2, when friction occurs between the extrusion head 14 and the combined die 2 and causes wear of the extrusion head 14, the iron filings rubbed off will be captured by the magnetic field generated by the second magnet block 29 and adsorbed on the front cover 212, preventing the iron filings from falling into the powder particles below. When sintering, the iron filings melt and cause small cavities in the refractory brick, resulting in a decline in the quality of the refractory brick.

[0049] Working principle:

[0050] When using this device to extrude and produce refractory bricks, first install the die block 21 in the die groove 15 to form the combined die 2. Then, put the powder particles into the cavity of the combined die 2. After the powder particles are filled, control the extrusion head 14 to move downward to extrude the powder particles in the cavity.

[0051] As the extrusion head 14 moves downward, when the extrusion head 14 enters the cavity, the pressing block 111 contacts the pressure plate 39. As the extrusion head 14 continues to move downward, the air in the cavity is compressed. At the same time, the pushing of the pressing block 111 causes the sliding rod 34 to move downward. Through the transmission of the sliding push block 35 and the first inclined block 310, at this time, the first sliding column 26 is driven by the connecting sliding column 311 to slide outward of the combined die 2. At this time, the powder particles stirred in the cavity flow into the first circular groove 24 under the suction generated by the sliding of the first sliding column 26, preventing the powder particles from diffusing into the surrounding air through the gap between the extrusion head 14 and the combined die 2.

[0052] After the initial extrusion of the extrusion head 14 is completed and it moves upward, at this time, the sliding push block 35 and the first inclined block 310 are separated. Under the action of the tension spring 210, the first sliding column 26 returns, and then the powder particles in the first circular groove 24 are pushed back into the cavity again, so as to be scattered on the refractory brick blank. In this way, during the subsequent fine pressing process, the extrusion head 14 can not damage the top surface of the refractory brick blank.

[0053] After the fine pressing is completed, the auxiliary hydraulic cylinder 17 is fully extended. At this time, the refractory brick blank on the auxiliary hydraulic cylinder 17 is separated from the combined die 2, which is convenient for collection by the collection device.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A die pressing device for producing refractory bricks, characterized in that: The machine frame (1) comprises a frame (1), the frame (1) comprises a base (11), a top surface of the base (11) is fixedly provided with symmetrical side panels (12), the inner side surfaces of the side panels (12) are fixedly connected with symmetrical guide columns (110), a top surface of the base (11) is provided with a mold groove (15), and further comprises: A combined mold (2), the combined mold (2) comprising a plurality of mold blocks (21), a dust collecting block (22) being fixedly connected inside the mold block (21), a fixed tube (23) being fixedly connected to the outer side surface of the dust collecting block (22), a first inclined groove (25) being provided on the upper and lower side surfaces of the dust collecting block (22), a first circular groove (24) being provided on the inner side surface of the dust collecting block (22), a first sliding column (26) being slidably sleeved inside the first circular groove (24), one end of the first sliding column (26) being fixedly connected to a closing head (28), the other end of the first sliding column (26) being located inside the fixed tube (23), a first magnet block (27) being fixedly connected inside the first inclined groove (25), and a second magnet block (29) being fixedly connected inside the closing head (28); A driving mechanism (3), the driving mechanism (3) comprising a protective shell (31) fixedly connected to the top surface of the base (11), the driving mechanism (3) driving the first sliding column (26) to slide in the first circular groove (24).

2. A die pressing device for refractory brick production according to claim 1, characterized in that: A tension spring (210) is sleeved on the first sliding column (26), and one end of the tension spring (210) is fixedly connected to the outer side surface of the mold block (21).

3. A die pressing device for refractory brick production according to claim 2, characterized in that: The N pole of the first magnet block (27) faces the first circular groove (24), and the N pole of the second magnet block (29) faces the inner side surface of the mold block (21).

4. A die pressing device for producing refractory bricks according to claim 3, characterized in that: The frame (1) also includes a top frame (13) fixedly connected to the top surface of the side plate (12), a mounting frame is slidably connected between the two side plates (12), an extrusion head (14) and two symmetrical pressing blocks (111) are fixedly connected to the bottom surface of the mounting frame, and four centrally symmetrical mounting grooves (18) and a first sliding groove (19) are provided on the top surface of the base (11).

5. A die pressing device for producing refractory bricks according to claim 4, characterized in that: A mold frame (16) is fixedly connected inside the base (11), and the mold frame (16) is located directly below the mold groove (15). A secondary hydraulic cylinder (17) is fixedly connected inside the mold frame (16).

6. A die pressing device for producing refractory bricks according to claim 5, characterized in that: A sliding frame (32) is fixedly connected in the mounting groove (18), a side frame (33) is slidably connected to the sliding frame (32), a sliding rod (34) is fixedly connected between two adjacent side frames (33) on the outer side surface of the mold block (21), a symmetrical sliding push block (35) is slidably sleeved on the sliding rod (34), and a second spring (36) is elastically connected between the sliding push block (35) and the adjacent side frame (33).

7. A die pressing device for producing refractory bricks according to claim 6, characterized in that: A guide slide post (37) is fixedly connected to the side of the sliding push block (35) away from the mold block (21), and a triangular groove (38) is formed on the side of the guide post (110) facing the sliding push block (35), and the guide slide post (37) is slidably connected in the triangular groove (38).

8. A die pressing device for producing refractory bricks according to claim 7, characterized in that: A first inclined block (310) is slidably connected in the first sliding groove (19), a connecting sliding column (311) is slidably connected in the fixed tube (23), the connecting sliding column (311) is fixedly connected to the first sliding column (26), a connecting plate (312) is fixedly connected between the two first inclined blocks (310), and the connecting sliding column (311) is fixedly connected to the side of the connecting plate (312).

9. A die pressing device for producing refractory bricks according to claim 8, characterized in that: A pressing plate (39) is fixedly connected to the sliding rod (34), a penetration groove is provided on the top surface of the protective shell (31) and is located directly above the pressing plate (39), the pressing block (111), the penetration groove and the pressing plate (39) are in the same vertical direction, a second inclined block (313) is fixedly connected to the top surface of the base (11), and a return spring (314) is elastically connected between the sliding frame (32) and the protective shell (31).

10. A die pressing device for producing refractory bricks according to claim 9, characterized in that: The inner side surface of the first inclined groove (25) is fixedly connected to a fixed angle block (211), the side surface of the fixed angle block (211) abuts against the first magnet block (27), and one end of the closing head (28) facing the inner side surface of the mold block (21) is fixedly connected to a front cover (212).

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