Octagonal two-hole brick press molding die

Abstract

The invention relates to an octagonal two-hole brick pressing forming die, which comprises a frame, a bottom pier mechanism, a brick mold mechanism, an ejection mechanism, a brick pressing mechanism and a mandrel; the brick mold mechanism comprises a bottom mold, an inner ring baffle and an outer ring baffle; the inner ring baffle is surrounded by the movable baffle and the fixed baffle, the movable baffle is fixed with a fixed shaft arranged horizontally, the fixed shaft is in sliding fit with the outer peripheral surface of the mandrel, and the movable baffle is adjustable in the up-down direction relative to the fixed baffle; the outer ring baffle is arranged outside the inner ring baffle and surrounded by the octagon, and the outer ring baffle comprises a movable baffle back corresponding to the movable baffle and a fixed baffle back corresponding to the fixed baffle; the movable baffle back is fixedly connected to the frame, the movable baffle back is provided with an avoiding groove for avoiding the fixed shaft, and the fixed baffle back is fixedly connected to the fixed baffle; the bottom pier mechanism is provided with an elastic mechanism for moving the movable baffle, and the production efficiency of the octagonal two-hole brick is improved.

Description

Technical Field

[0001] This invention belongs to the field of refractory brick technology, and in particular relates to an octagonal two-hole brick pressing mold. Background Technology

[0002] Refractory materials are generally divided into two types: unshaped refractories and shaped refractories. Unshaped refractories, also called castables, are mixed powdery granules composed of various aggregates and one or more binders. They must be mixed with one or more liquids before use and have strong fluidity. Shaped refractories generally refer to refractory bricks, which come in various shapes and can be temporarily processed as needed.

[0003] Among the many types of refractory bricks, there is an octagonal two-hole brick, whose structure is as follows: Figure 1 and Figure 2 As shown, the octagonal two-hole brick, as its name suggests, comprises eight corners, with a cross-sectional outline that is a regular octagon. The outer perimeter of the octagonal brick is enclosed by eight planes. A central hole is formed along the central axis of the octagonal two-hole brick, and connecting holes are formed on a pair of opposite planes. The axis of the connecting holes is perpendicular to the axis of the central hole, and the connecting holes are connected to the central hole. This type of refractory brick has a complex structure, and existing manufacturing methods all employ manual molding, which not only requires a large amount of labor but also has low molding efficiency. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an octagonal two-hole brick pressing mold to solve the technical problem of low production efficiency of octagonal two-hole bricks in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the octagonal two-hole brick pressing mold of the present invention is as follows: An octagonal two-hole brick pressing mold includes: frame; Bottom support structure: fixed to the frame; Brick mold mechanism: Located above the base pier mechanism, the brick mold mechanism has a cavity for forming bricks; Ejection mechanism: It is located in the bottom pier mechanism and moves up and down. The brick mold mechanism is located at the upper end of the ejection mechanism. Brick pressing mechanism: It is set to move up and down relative to the frame, and the brick pressing mechanism is guided and slidably adapted to the cavity; Mandrel: The lower end is set in the bottom pier mechanism, and the upper end extends into the cavity of the brick mold mechanism; The brick mold mechanism includes a bottom mold, an inner ring baffle, and an outer ring baffle; The inner ring baffle is formed into a regular octagon. The inner ring baffle is formed by a movable baffle and a fixed baffle. The movable baffle is one of the pairs of opposite sides of the regular octagon. A horizontally set fixed shaft is fixed on the movable baffle. The end of the fixed shaft facing the spindle is adapted to the outer peripheral surface of the spindle and is guided and slidably engaged with the outer peripheral surface of the spindle. The position of the movable baffle relative to the fixed baffle in the up and down direction is adjustable. The outer ring baffle is disposed outside the inner ring baffle and forms a regular octagon. The outer ring baffle includes a movable baffle rear corresponding to the movable baffle and a fixed baffle rear corresponding to the fixed baffle. The movable baffle rear is fixedly connected to the frame. A clearance groove for clearance of the fixed shaft is opened on the movable baffle rear. The fixed baffle rear is fixedly connected to the fixed baffle. The chamber is formed by an inner baffle and a bottom mold; The bottom pier mechanism is equipped with an elastic mechanism with a movable top support and a movable baffle.

[0006] Beneficial effects: The octagonal two-hole brick pressing mold of the present invention first pours the material into the cavity when pressing the octagonal two-hole brick. The brick pressing mechanism squeezes downward. At this time, the material is subjected to downward squeezing force and moves downward. At the same time, the fixed shaft on the movable baffle is also squeezed and moves downward. The fixed shaft drives the movable baffle to move downward together. At this time, the elastic mechanism moves downward. After pressing and forming, the ejection mechanism pushes the bottom mold, the formed brick, the movable baffle, the fixed baffle, and the fixed baffle back upward together. Then, the movable baffle, the fixed baffle, and the fixed baffle back are removed from the formed brick to obtain the formed octagonal two-hole brick. The octagonal two-hole brick of the present invention is simple to manufacture and greatly improves the manufacturing efficiency of octagonal two-hole brick.

[0007] Furthermore, the bottom mold includes a bottom plate and a bottom plate base fixed below the bottom plate. The bottom plate is a regular octagonal prism, and the bottom plate base includes corresponding seat bodies arranged above and below the bottom plate. The seat bodies are also regular octagonal prisms. The bottom plate base also includes a connecting block fixedly connected to the seat bodies. The connecting block is a cuboid structure extending outward from one side of the regular octagonal prism. A set of cuboid structures corresponding to the movable baffle is provided with U-shaped holes for an avoidance elastic mechanism. The lower end of the fixed baffle is attached to the bottom plate base, and the movable baffle is correspondingly arranged with the cuboid structure with U-shaped holes on the bottom plate base.

[0008] Beneficial effects: Setting the bottom mold into a structure that includes a bottom plate and a bottom plate base enables the bottom plate base to provide support for the movable baffle and the fixed baffle. At the same time, the side of the bottom plate can also provide guidance for the up and down movement of the movable baffle.

[0009] Furthermore, after the clearance groove passes through the movable baffle at both ends, the cross-section of the clearance groove is a U-shaped groove with its opening facing the movable baffle.

[0010] Beneficial effect: The design of the clearance groove facilitates the installation of the elastic mechanism.

[0011] Furthermore, the ejection mechanism includes a fixed plate for fixed connection of the telescopic structure and four ejection rods fixed on the upper surface of the fixed plate. The ejection rods are evenly distributed along the circumference of the fixed plate, and the upper end of the ejection rods is fixedly connected to the base plate.

[0012] Beneficial effects: The ejection mechanism has a simple structure and the ejection rod can provide a stable and uniform upward force to the bottom mold.

[0013] Furthermore, the base block mechanism includes a base block, a base block cover fixed above the base block, a base block pad fixed on the base block cover, and a spring pressure plate fixed on the base block pad. The base block includes a rectangular plate fixedly connected to the frame and a support plate fixed on the rectangular plate. The base block pad is cylindrical, and the spring pressure plate is cylindrical. The rectangular plate has mounting holes adapted to the guide of the fixed plate. The base block cover has a first clearance hole for avoiding the ejector rod, the base block pad has a second clearance hole for avoiding the ejector rod, and the spring pressure plate has a third clearance hole for avoiding the ejector rod. The first clearance hole, the second clearance hole, and the third clearance hole are arranged vertically and vertically.

[0014] Beneficial effects: The bottom pier mechanism has a reasonable structural design, which not only facilitates the support of the brick formwork mechanism, but also facilitates the setting and vertical movement of the ejection mechanism.

[0015] Furthermore, the mandrel includes a large-diameter section at the bottom and a small-diameter section fixedly connected to the large-diameter section. A receiving hole is provided in the center of the bottom pad. The large-diameter section of the mandrel is guided and slidably fitted with the receiving hole. A first through hole is provided in the center of the spring pressure plate. A second through hole is provided on the bottom mold. The diameters of the first through hole and the second through hole are equal and smaller than the diameter of the receiving hole. The small-diameter section passes through the first through hole and the second through hole respectively.

[0016] Beneficial effect: The base structure also facilitates the installation of the mandrel.

[0017] Furthermore, a downward-facing circular hole is provided at the bottom center of the large-diameter section, and a first spring is installed in the circular hole, with the lower end of the first spring supported on the bottom cover.

[0018] Beneficial effect: The first spring allows the spindle to move in the vertical direction.

[0019] Furthermore, the elastic mechanism is provided in two sets corresponding to the movable baffle. The elastic mechanism includes a spring rod, which includes an upper rod section, an intermediate transition disc, and a lower rod section. A second spring is sleeved on the lower rod section.

[0020] Beneficial effect: The flexible mechanism is easy to set up.

[0021] Furthermore, the diameter of the spring pressure plate is larger than the diameter of the bottom block pad, and the outer edge of the spring pressure plate is provided with a through hole for the upper rod section to pass through. The upper rod section passes through the U-shaped hole, and the upper end of the upper rod section is in contact with the movable baffle. The bottom block cover is provided with a guide hole adapted to guide the lower rod section, and the second spring supports between the transition disc and the bottom block cover.

[0022] Beneficial effects: The perforations on the spring pressure plate and the guide holes on the bottom cover provide conditions for the installation of the spring rod.

[0023] The brick pressing mechanism includes a hammer head frame for fixed connection with the press. The lower end of the hammer head frame is a connecting plate, and a pressure cap is connected to the connecting plate. The shape of the pressure cap corresponds to the chamber and is adapted to guide the sliding of the chamber.

[0024] Beneficial effects: The brick pressing mechanism has a simple structure. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of an octagonal two-hole brick pressing mold before pressing according to the present invention. Figure 2 yes Figure 1 A cross-sectional view of an octagonal two-hole brick pressing mold during the pressing process; Figure 3 yes Figure 1 A schematic diagram of the inner ring baffle and fixed shaft of a type of octagonal two-hole brick pressing mold; Figure 4 yes Figure 1 A schematic diagram of the structure of an inner ring baffle, part of the outer ring baffle, and a fixed shaft of an octagonal two-hole brick pressing mold; Figure 5 yes Figure 1 A schematic diagram of the inner ring baffle, outer ring baffle, and fixed shaft of an octagonal two-hole brick pressing mold; Figure 6 yes Figure 1 A partial structural diagram of the bottom support mechanism of an octagonal two-hole brick pressing mold; Figure 7 yes Figure 1 A schematic diagram of the brick pressing mechanism of an octagonal two-hole brick pressing mold; Figure 8 yes Figure 1 A schematic diagram of the bottom mold structure of the brick pressing mechanism of an octagonal two-hole brick pressing and forming mold. Figure 9 yes Figure 3 Front view of the movable baffle in the inner ring baffle; Figure 10 yes Figure 9 A schematic diagram of the structure of the movable baffle in the middle; Figure 11 yes Figure 5 A schematic diagram of the structure behind the movable baffle in the middle; Figure 12 yes Figure 5 A schematic diagram of the structure behind the fixed baffle; Figure 13 yes Figure 5 A schematic diagram of the structure of the fixed shaft on the movable baffle in the middle; Figure 14 yes Figure 1 A top view of a spring pressure plate in an octagonal two-hole brick pressing mold; Figure 15 yes Figure 1 A top view of the bottom support of an octagonal two-hole brick pressing mold; Figure 16 yes Figure 1 A front view of the mandrel of an octagonal two-hole brick pressing mold; Figure 17 yes Figure 1 A schematic diagram of the bottom pier of a type of octagonal two-hole brick pressing mold; Figure 18 yes Figure 1 A schematic diagram of the ejection mechanism of an octagonal two-hole brick pressing mold.

[0026] Reference numerals: 1-Bottom block; 2-Bottom block cover; 3-Ejection mechanism; 4-Guide hole; 5-Bottom block pad; 6-Spring pressure plate; 7-Mandrel; 8-Accommodation hole; 9-First spring; 10-Spring rod; 11-Second spring; 12-Bottom plate seat; 13-Bottom plate; 14-Modible baffle; 15-Fixed shaft; 16-Behind movable baffle; 17-Fixed box; 18-Pressure cover; 19-Hammer head frame; 20-Fixed baffle; 21-Fixed... After fixing the baffle; 22- clearance groove; 23- rectangular plate; 24- support plate; 25- fixing plate; 26- ejector rod; 27- connecting plate; 28- second through hole; 29- U-shaped hole; 30- fixing hole; 32- first through hole; 33- third clearance hole; 34- through hole; 35- countersunk hole; 36- second clearance hole; 37- threaded hole; 38- large diameter section; 39- small diameter section; 40- round hole; 43- mounting hole. Detailed Implementation

[0027] The following is a detailed description of an octagonal two-hole brick pressing mold according to the present invention, with reference to the accompanying drawings and specific embodiments: An octagonal two-hole brick pressing mold of the present invention, as shown in the figure Figure 1 and Figure 2As shown, the system includes a frame (not shown in the figure), a base mechanism, a brick mold mechanism, an ejector mechanism 3, a brick pressing mechanism, and a mandrel 7. The frame is not shown in the figure. The base mechanism is fixed relative to the frame. The brick mold mechanism is positioned above the base mechanism. The ejector mechanism 3 is located within the base mechanism. The brick mold mechanism has a cavity for forming the brick. The brick pressing mechanism is positioned vertically within the cavity and guided vertically. The lower end of the mandrel 7 is located within the base mechanism, and its upper end extends into the cavity of the brick mold mechanism. The brick pressing mechanism presses downwards, compressing the brick material within the cavity into shape. Then, the ejector mechanism 3 ejects the formed brick along with the brick mold mechanism, thus producing a formed octagonal two-hole brick.

[0028] Specifically, the brick mold mechanism includes a bottom mold, an inner ring baffle, and an outer ring baffle. The bottom mold includes a bottom plate 13 and a bottom plate seat 12 fixed below the bottom plate 13. The mandrel 7 passes through the bottom mold of the brick mold mechanism and extends upward into the cavity. Both the bottom plate 13 and the bottom plate seat 12 have a second through hole 28 for the mandrel 7 to pass through. The bottom plate 13 is a regular octagonal prism, and the upper surface of the bottom plate 13 is the same as the lower surface of the formed octagonal two-hole brick, which is used to form the lower surface of the octagonal two-hole brick. In this embodiment, the lower surface of the octagonal two-hole brick has an annular groove at the opening of the central hole, and the bottom plate 13 has a corresponding annular boss at the opening of the second through hole 28 to form the annular groove.

[0029] like Figure 3 , Figure 9-13 As shown, the inner ring baffle is formed into a regular octagon. In this embodiment, the inner ring baffle is composed of eight plates arranged in the vertical direction. The inner ring baffle includes a movable baffle 14 and a fixed baffle 20. The movable baffle 14 is one of the opposite sides of the regular octagon. A fixing hole 30 is provided in the middle of the movable baffle 14. A horizontally arranged fixing shaft 15 is fixed in the fixing hole 30. The end of the fixing shaft 15 facing the spindle 7 is adapted to the outer peripheral surface of the spindle 7, and the end of the fixing shaft 15 facing the spindle 7 is guided and slidably adapted to the outer peripheral surface of the spindle 7. The movable baffle 14 is adjustable in the vertical direction relative to the fixed baffle 20. In order to facilitate the vertical adjustment of the movable baffle 14 relative to the fixed baffle 20, an elastic mechanism is provided below the movable baffle 14 in this embodiment.

[0030] like Figure 4 and Figure 5As shown, the outer ring baffle is located outside the inner ring baffle and forms a regular octagon. The outer ring baffle includes a movable baffle rear 16 corresponding to the movable baffle 14 and a fixed baffle rear 21 corresponding to the fixed baffle 20. The movable baffle rear 16 is fixedly connected to the frame, and a clearance groove 22 is provided on the movable baffle rear 16 to avoid the fixed shaft 15. The fixed baffle rear 21 is fixedly connected to the fixed baffle 20. In this embodiment, the cavity of the brick mold mechanism is formed by the inner ring baffle and the bottom mold. In this embodiment, the clearance groove 22 extends vertically through the movable baffle rear 16, and the cross-section of the clearance groove 22 is a U-shaped groove with its opening facing the movable baffle. When the movable baffle 14 and the fixed shaft 15 move vertically, the clearance groove 22 can provide space for the vertical movement of the fixed shaft 15. To facilitate the fixed connection of the movable baffle rear 16 to the frame, in this embodiment, a fixed box 17 is fixed on the frame, and the movable baffle rear 16 is fixed on the fixed box 17.

[0031] In this embodiment, as Figure 8 As shown, the base plate 12 includes a seat body corresponding to the base plate 13 vertically. The seat body is a regular octagonal prism. The base plate also includes a connecting block fixedly connected to the seat body. The connecting block is a cuboid structure extending outward from one side of the regular octagonal prism. A U-shaped hole 29 for an abutment elastic mechanism is provided on a set of cuboid structures corresponding to the baffle. The lower end of the fixed baffle 20 is attached to the base plate 12, and the movable baffle 14 is vertically corresponding to the cuboid structure with U-shaped holes 29 on the base plate 12.

[0032] In this embodiment, as Figure 18 As shown, the ejection mechanism 3 includes a fixed disk 25 for fixed connection with the telescopic structure and four ejection rods 26 fixed on the upper surface of the fixed disk 25. The ejection rods 26 are evenly distributed along the circumference of the fixed disk 25, and the upper end of the ejection rods 26 is fixedly connected to the base plate 12. In this embodiment, the telescopic structure is a hydraulic cylinder (not shown in the figure).

[0033] like Figure 6 , Figure 14 , Figure 15As shown, the base support mechanism includes a base support 1, a base support cover 2 fixed above the base support 1, a base support pad 5 fixed on the base support cover 2, and a spring pressure plate 6 fixed on the base support pad 5. The base support 1 includes a rectangular plate 23 fixedly connected to the frame and support plates 24 fixed on the rectangular plate 23 and spaced apart on the left and right. The base support pad 5 is cylindrical, and the spring pressure plate 6 is disc-shaped. The rectangular plate 23 of the base support 1 has mounting holes 43 that are adapted to guide the fixed plate 25, and the mounting holes 43 are located between the two support plates 24. The bottom cover 2 has a first clearance hole for avoiding the ejector rod 26, the bottom pad 5 has a second clearance hole 36 for avoiding the ejector rod 26, and the spring pressure plate 6 has a third clearance hole 33 for avoiding the ejector rod 26. The first clearance hole, the second clearance hole 36, and the third clearance hole 33 are arranged vertically and vertically respectively. The ejector rod 26 passes through the first clearance hole, the second clearance hole 36, and the third clearance hole 33 from bottom to top and is then fixedly connected to the bottom plate 12.

[0034] In order to facilitate the fixed connection between the base pad 5 and the spring pressure plate 6, in this embodiment, the spring pressure plate 6 is provided with a countersunk hole 35, and the base pad 5 is provided with a threaded hole 37 at the corresponding position of the countersunk hole. The screw passes through the countersunk hole 35 in sequence and is threaded into the threaded hole 37 to fix the base pad 5 and the spring pressure plate 6.

[0035] like Figure 16 As shown, the mandrel 7 includes a large-diameter section 38 located at the bottom and a small-diameter section 39 fixedly connected to the large-diameter section 38. The bottom pad 5 has a receiving hole 8 in the center. The large-diameter section 38 of the mandrel 7 is guided and slidably engaged with the receiving hole 8. The spring pressure plate 6 has a first through hole 32 in the center. The bottom mold has a second through hole 28. The diameter of the first through hole 32 and the diameter of the second through hole 28 are equal and both smaller than the diameter of the receiving hole 8. The small-diameter section 39 of the mandrel 7 passes through the first through hole 32 and the second through hole 28 respectively and extends upward into the cavity.

[0036] In order for the mandrel 7 to have a certain downward movement hole when the brick pressing mechanism presses downward, in this embodiment, a downward-facing circular hole 40 is provided at the bottom center of the large diameter section 38, and a first spring 9 is provided in the circular hole 40. The lower end of the first spring 9 is supported on the bottom cover 2.

[0037] The bottom pier mechanism is equipped with an elastic mechanism for a movable top support baffle 14. Two sets of elastic mechanisms are provided corresponding to the movable baffle 14. The elastic mechanism includes a spring rod 10, which includes an upper rod section, an intermediate transition disc, and a lower rod section. A second spring 11 is sleeved on the lower rod section.

[0038] The diameter of the spring pressure plate 6 is larger than the diameter of the bottom block 5. The outer edge of the spring pressure plate 6 has a through hole 34 for the upper rod section to pass through. The upper rod section passes through the through hole 34 and the U-shaped hole 29 of the bottom plate 12 from bottom to top. The upper end of the upper rod section is in contact with the movable plate. The bottom block cover 2 has a guide hole 4 adapted to guide the lower rod section. The second spring 11 supports between the transition disc and the bottom block cover 2. Under the support of the second spring 11, the lower end of the lower rod section is spaced vertically with the bottom of the guide hole 4, thereby providing space for the downward movement of the spring rod 10.

[0039] The brick pressing mechanism includes a hammer head frame 19 for fixed connection with the press. The lower end of the hammer head frame 19 is a connecting plate 27, and a pressure cover 18 is connected to the connecting plate 27. The shape of the pressure cover 18 corresponds to the shape of the chamber and is adapted to guide the sliding of the chamber.

[0040] During brick making, under the support of the elastic mechanism, the upper end of the movable baffle 14 is positioned above the upper end of the fixed baffle 20. The first spring 9 is in a naturally open state, and the upper end of the mandrel 7 is higher under the support of the first spring 9. First, the brick-making material is poured into the chamber. Under the action of the press, the brick-pressing mechanism squeezes downwards. At this time, the brick-making material moves downwards under the downward squeezing force of the pressure cap 18 in the chamber, becoming compacted. Simultaneously, the fixed shaft 15 on the movable baffle 14 is also squeezed downwards, causing the movable baffle 14 to move downwards as well. At this time, the second spring 11 on the elastic mechanism below the movable baffle contracts, and the spring rod 10 of the elastic mechanism moves downwards until the lower end of the movable baffle 14 abuts against the base plate 12. The movable baffle 14 will no longer move downwards. At this point, the position of the fixed shaft 15 on the movable baffle 14 forms one of the holes in the octagonal brick within the chamber. When the brick pressing mechanism presses downwards, the mandrel 7 also moves downwards slightly. When the movable baffle presses against the base plate 12, the pressure cover 18 of the brick pressing mechanism presses against the upper end of the mandrel 7, and the octagonal brick is pressed into shape. After pressing, the ejection mechanism 3, under the upward pressing action of the hydraulic cylinder, ejects the bottom mold, the formed brick, the movable baffle 14, the fixed baffle 20, and the fixed baffle rear 21 together upwards. At this time, the movable baffle rear 16 continues to maintain a fixed relationship with the fixed box 17. Then, the movable baffle 14, the fixed baffle 20, and the fixed baffle rear 21 are removed from the formed brick, thus obtaining the formed octagonal two-hole brick. The octagonal two-hole brick of the present invention is simple to manufacture and greatly improves the manufacturing efficiency of the octagonal two-hole brick.

[0041] In the above embodiments, the bottom mold includes a bottom plate and a bottom plate base fixed below the bottom plate. In other embodiments, the bottom plate and the bottom plate base can also be integrally formed.

[0042] In the above embodiments, after the clearance groove passes through the movable baffle, the cross-section of the clearance groove is a U-shaped groove with the opening facing the movable baffle; in other embodiments, the clearance groove can also be a clearance hole structure with a rectangular cross-section.

[0043] In the above embodiments, the ejection mechanism includes a fixed plate for fixed connection with the telescopic structure and four ejection rods fixed on the upper surface of the fixed plate; in other embodiments, the ejection mechanism includes a fixed plate for fixed connection with the telescopic structure and three ejection rods fixed on the upper surface of the fixed plate.

[0044] In the above embodiments, the mandrel includes a large-diameter section at the bottom and a small-diameter section fixedly connected to the large-diameter section; in other embodiments, the mandrel may also be a shaft section with equal upper and lower diameters.

[0045] In the above embodiments, a downward-facing circular hole is provided at the bottom center of the large-diameter section, and a first spring is provided in the circular hole, with the lower end of the first spring supported on the bottom cover; in other embodiments, other elastic telescopic structures may also be provided in the circular hole.

Claims

1. An octagonal two-hole brick pressing mold, characterized in that, include: frame; Bottom support structure: fixed to the frame; Brick mold mechanism: Located above the base pier mechanism, the brick mold mechanism has a cavity for forming bricks; Ejection mechanism: It is located in the bottom pier mechanism and moves up and down. The brick mold mechanism is located at the upper end of the ejection mechanism. Brick pressing mechanism: It is set to move up and down relative to the frame, and the brick pressing mechanism is guided and slidably adapted to the cavity; Mandrel: The lower end is set in the bottom pier mechanism, and the upper end extends into the cavity of the brick mold mechanism; The brick mold mechanism includes a bottom mold, an inner ring baffle, and an outer ring baffle; The inner ring baffle is formed into a regular octagon. The inner ring baffle is formed by a movable baffle and a fixed baffle. The movable baffle is one of the pairs of opposite sides of the regular octagon. A horizontally set fixed shaft is fixed on the movable baffle. The end of the fixed shaft facing the spindle is adapted to the outer peripheral surface of the spindle and is guided and slidably engaged with the outer peripheral surface of the spindle. The position of the movable baffle relative to the fixed baffle in the up and down direction is adjustable. The outer ring baffle is disposed outside the inner ring baffle and forms a regular octagon. The outer ring baffle includes a movable baffle rear corresponding to the movable baffle and a fixed baffle rear corresponding to the fixed baffle. The movable baffle rear is fixedly connected to the frame. A clearance groove for clearance of the fixed shaft is opened on the movable baffle rear. The fixed baffle rear is fixedly connected to the fixed baffle. The chamber is formed by an inner baffle and a bottom mold; The bottom pier mechanism is equipped with an elastic mechanism with a movable top support and a movable baffle.

2. The octagonal two-hole brick pressing mold according to claim 1, characterized in that, The bottom mold includes a bottom plate and a bottom plate base fixed below the bottom plate. The bottom plate is a regular octagonal prism. The bottom plate base includes a seat body corresponding to the bottom plate, which is also a regular octagonal prism. The bottom plate base also includes a connecting block fixedly connected to the seat body. The connecting block is a cuboid structure extending outward from one side of the regular octagonal prism. A set of cuboid structures corresponding to the movable baffle is provided with U-shaped holes for an avoidance elastic mechanism. The lower end of the fixed baffle is attached to the bottom plate base. The movable baffle is correspondingly arranged with the cuboid structure with U-shaped holes on the bottom plate base.

3. The octagonal two-hole brick pressing mold according to claim 2, characterized in that, After the clearance groove passes through the movable baffle at both ends, the cross-section of the clearance groove is a U-shaped groove with the opening facing the movable baffle.

4. The octagonal two-hole brick pressing mold according to claim 3, characterized in that, The ejection mechanism includes a fixed plate for fixed connection with the telescopic structure and four ejection rods fixed on the upper surface of the fixed plate. The ejection rods are evenly distributed along the circumference of the fixed plate, and the upper end of the ejection rods is fixedly connected to the base plate.

5. The octagonal two-hole brick pressing mold according to claim 4, characterized in that, The base support mechanism includes a base support, a base support cover fixed above the base support, a base support pad fixed on the base support cover, and a spring pressure plate fixed on the base support pad. The base support includes a rectangular plate fixedly connected to a frame and a support plate fixed on the rectangular plate. The base support pad is cylindrical, and the spring pressure plate is disc-shaped. The rectangular plate has mounting holes adapted to guide the fixed plate. The base support cover has a first clearance hole for avoiding the ejector rod, the base support pad has a second clearance hole for avoiding the ejector rod, and the spring pressure plate has a third clearance hole for avoiding the ejector rod. The first clearance hole, the second clearance hole, and the third clearance hole are arranged vertically and vertically.

6. The octagonal two-hole brick pressing mold according to claim 5, characterized in that, The mandrel includes a large-diameter section at the bottom and a small-diameter section fixedly connected to the large-diameter section. The bottom pad has a receiving hole in the center. The large-diameter section of the mandrel slides in a guide fit with the receiving hole. The spring pressure plate has a first through hole in the center. The bottom mold has a second through hole. The diameters of the first through hole and the second through hole are equal and smaller than the diameter of the receiving hole. The small-diameter section passes through the first through hole and the second through hole respectively.

7. The octagonal two-hole brick pressing mold according to claim 6, characterized in that, The bottom center of the large-diameter section has a downward-facing circular hole, in which a first spring is installed, and the lower end of the first spring is supported on the bottom cover.

8. The octagonal two-hole brick pressing mold according to claim 5, characterized in that, The elastic mechanism is provided in two sets corresponding to the movable baffle. The elastic mechanism includes a spring rod, which includes an upper rod section, an intermediate transition disc, and a lower rod section. A second spring is sleeved on the lower rod section.

9. The octagonal two-hole brick pressing mold according to claim 8, characterized in that, The diameter of the spring pressure plate is larger than the diameter of the bottom block pad. The outer edge of the spring pressure plate has a through hole for the upper rod section to pass through. The upper rod section passes through the U-shaped hole and the upper end of the upper rod section is in contact with the movable baffle. The bottom block cover has a guide hole adapted to guide the lower rod section. The second spring supports between the intermediate transition disc and the bottom block cover.

10. An octagonal two-hole brick pressing mold according to any one of claims 1-9, characterized in that, The brick pressing mechanism includes a hammer head frame for fixed connection with the press. The lower end of the hammer head frame is a connecting plate, and a pressure cap is connected to the connecting plate. The shape of the pressure cap corresponds to the chamber and is adapted to guide the sliding of the chamber.

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