Ceramic powder forming equipment

Abstract

The utility model discloses ceramic powder forming equipment which comprises forming rollers, a hopper and a pressure maintaining assembly, the forming rollers comprise a first forming roller and a second forming roller which are oppositely arranged in the vertical direction, the bottom end of the first forming roller is provided with a first compaction face, and the top end of the second forming roller is provided with a second compaction face. A compaction space is formed between the first compaction surface and the second compaction surface at an interval; the feeding end of the hopper extends to the compaction space; the pressure maintaining assembly comprises a supporting plate, a pressure maintaining plate and a pressure maintaining section, and the two ends of the pressure maintaining section are connected with the pressure maintaining plate and the first forming roller correspondingly; the pressure maintaining plate and the pressure maintaining section are both arranged opposite to the supporting plate and form a pressure maintaining interval, the pressure maintaining interval is connected with the compaction space, and the height of the pressure maintaining interval is the same as that of the compaction space. In the forming equipment, the pressure maintaining interval is connected with the compaction space, so that the green bricks can be subjected to continuous pressure after leaving the compaction space, and expansion of the green bricks due to internal stress release is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a brick making equipment technical field especially relates to a ceramic powder forming equipment. BACKGROUND

[0002] In the production process of ceramic green brick, the roller press as the key equipment, through the upper pressing roller and the lower pressing roller driven by the oil cylinder to ceramic powder material to exert pressure, realize the roll forming. However, the ceramic material has special physical properties in the pressing process, that is, the powder will experience a compaction solidification process after being pressed, but within a certain time, if the pressure is removed or reduced, the green brick may expand due to internal stress release. If this expansion is not properly controlled, it is easy to cause cracks and cracks on the surface or inside of the green brick, seriously affecting the product quality.

[0003] In order to avoid this problem, the existing roller press equipment usually adds a pressure maintaining structure. The main role of the pressure maintaining structure is to continue to exert a certain pressure on the green brick after it leaves the upper pressing roller, so as to prevent it from expanding due to internal stress release. However, the existing pressure maintaining structure has a significant defect: because there is a gap between the pressure maintaining structure and the upper pressing roller, the green brick will experience a stage of gradually decreasing pressure or even complete loss during the process of moving away from the upper pressing roller and towards the pressure maintaining structure. At this stage, the green brick is easy to expand, especially when it reaches the bottom of the pressure maintaining structure, because it has lost the direct pressure of the upper pressing roller, it may suddenly hit the side step of the pressure maintaining structure, causing edge damage or internal stress concentration, and thus increasing the risk of cracks and cracks.

[0004] Therefore, there is an urgent need for a ceramic powder forming equipment to overcome the above-mentioned defects. INVENTION CONTENTS

[0005] In order to overcome at least one of the defects of the prior art described above, the purpose of the utility model is to provide a ceramic powder forming equipment, which can avoid the problem of green brick expansion due to sudden pressure drop or loss before entering the pressure maintaining interval after leaving the compaction space by setting a pressure maintaining section in the installation interval between the pressure maintaining plate and the first forming roller.

[0006] The technical scheme adopted by the utility model to solve its problem is:

[0007] A ceramic powder forming equipment, comprising,

[0008] A forming roller assembly, comprising a first forming roller and a second forming roller, the first forming roller and the second forming roller are arranged opposite in the vertical direction, the bottom end of the first forming roller has a first compaction surface, the top end of the second forming roller has a second compaction surface, and the first compaction surface and the second compaction surface form a compaction space in the interval;

[0009] The feeding assembly comprises a hopper, a feeding channel is arranged in the hopper, two ends of the feeding channel are respectively an inlet end and a feeding end, the feeding end extends to the compacting space, and the feeding channel is used for conveying the powder along the direction from the inlet end to the feeding end.

[0010] The pressure maintaining assembly comprises a support plate, a pressure maintaining plate and a pressure maintaining section, the pressure maintaining plate is arranged adjacent to the first forming roller, an end of the pressure maintaining plate and a bottom end of the first forming roller are horizontally spaced apart, the pressure maintaining section is arranged in the installation interval, and two ends of the pressure maintaining section are respectively connected with the pressure maintaining plate and the first forming roller; the pressure maintaining plate and the pressure maintaining section are arranged opposite to the support plate and form a pressure maintaining interval, the pressure maintaining interval is connected with the compacting space, and the height of the pressure maintaining interval is the same as the height of the compacting space.

[0011] Further, the pressure maintaining section is a pressure maintaining plate, the pressure maintaining plate is detachably connected with the pressure maintaining plate; the lower surface of the pressure maintaining plate, the lower surface of the pressure maintaining plate and the first compacting surface are arranged in the same plane.

[0012] Further, the pressure maintaining assembly comprises a pressure belt, the pressure belt is closely arranged on the lower surface of the pressure maintaining plate and the first compacting surface; a belt section of the pressure belt in the installation interval forms the pressure maintaining section; the pressure belt and the support plate form the pressure maintaining interval.

[0013] Further, the pressure maintaining assembly comprises a driven roller, the driven roller is arranged on one side of the first forming roller, and the pressure belt is arranged around the driven roller and the first forming roller.

[0014] Further, the lower surface of the pressure maintaining plate is made of a friction-reducing material.

[0015] Further, the pressure maintaining assembly comprises a pressure maintaining driving member, the pressure maintaining driving member is used for driving the pressure maintaining plate to move up and down relative to the support plate.

[0016] Further, the feeding channel comprises an inlet section and a feeding section which are distributed from top to bottom, the inlet section is provided with a pushing screw; the feeding section is in the form of an arc segment, and the lower end of the feeding section extends to the compacting space and forms the feeding end.

[0017] Further, the vertical section of the feeding end is in the form of a square.

[0018] Further, a discharging pipeline is connected between the hopper and the compacting space, the discharging pipeline is detachably connected with the hopper, and a discharging channel is arranged in the discharging pipeline and communicates the feeding channel with the compacting space, and the height and width of the discharging channel are adjustable.

[0019] Further, the compacting space is provided with a side limiting strip, the discharging channel is provided with an adjusting plate, the side limiting strip extends from the compacting space to the discharging channel and is connected with the adjusting plate, and the adjusting plates on the two sides of the discharging channel are connected to form a discharging interval, and the adjusting plate on one side is capable of moving towards or away from the adjusting plate on the other side to adjust the width of the discharging interval.

[0020] In summary, the ceramic powder forming equipment has the following technical effects:

[0021] 1) The ceramic powder forming equipment is provided with a pressure maintaining section arranged in the installation interval between the pressure maintaining plate and the first forming roller, so that the pressure maintaining interval is connected with the compacting space, and the brick blank can continuously receive pressure after leaving the compacting space, so that the problem of expansion of the brick blank due to sudden decrease or loss of pressure after leaving the compacting space can be avoided.

[0022] 2) The pressure maintaining section blocks the installation interval, so that the brick blank can not expand and hit the side step of the pressure maintaining plate when reaching the bottom of the pressure maintaining structure due to sudden loss of pressure, which greatly reduces the risk of edge damage and internal stress concentration of the brick blank.

[0023] 3) The ceramic powder forming equipment can easily adapt to the production requirements of brick blanks with different thicknesses and widths, and the structure of the obtained brick blank is more stable, and the risk of internal stress concentration and crack generation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 FIG. 1 is a structural schematic view of the ceramic powder forming equipment of the first embodiment of the present application;

[0025] Figure 2 FIG. 2 is a structural schematic view of the overall structure of the ceramic powder forming equipment of the second embodiment of the present application;

[0026] Figure 3 FIG. 3 is a structural schematic view of the feeding assembly of the embodiment of the present application;

[0027] Figure 4 FIG. 4 is a structural schematic view of the horizontal projection of the forming roller assembly of the embodiment of the present application.

[0028] Wherein, the reference signs have the following meanings:

[0029] 1, hopper; 10, feeding channel; 11, feeding end; 12, feeding end; 14, discharging channel; 15, feeding section; 16, feeding section; 17, push screw; 2, forming roller assembly; 21, first forming roller; 22, second forming roller; 23, compaction space; 31, baffle strip; 32, adjusting plate; 34, support plate; 4, receiving device; 41, pressure maintaining plate; 42, mounting interval; 43, pressure maintaining plate; 44, pressure belt; 45, driven roller; 46, pressure maintaining driving member; 5, green brick. DETAILED DESCRIPTION

[0030] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0031] In the description of the present application, it should be pointed out that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the indicated devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0033] Embodiment one

[0034] Referring to Figures 1 to 4 The present application discloses a ceramic powder forming equipment, which comprises a forming roller assembly 2, a feeding assembly and a pressure maintaining assembly. Specifically, referring to Figure 4 The forming roller assembly 2 comprises a first forming roller 21 and a second forming roller 22, and the first forming roller 21 and the second forming roller 22 are oppositely arranged in the vertical direction, wherein the bottom end of the first forming roller 21 has a first compaction surface, the top end of the second forming roller 22 has a second compaction surface, and the first compaction surface and the second compaction surface are spaced apart to form a compaction space 23. Referring to Figure 1 and Figure 2The feeding assembly comprises a hopper 1, and a feeding channel 10 is arranged in the hopper 1. The feeding channel 10 has an inlet end 11 and a feeding end 12. The feeding end 12 extends to the compacting space 23, and the feeding channel 10 is used to transport the powder in the direction from the inlet end 11 to the feeding end 12.

[0035] The pressure maintaining assembly comprises a support plate 34, a pressure maintaining plate 41 and a pressure maintaining section. The pressure maintaining plate 41 is arranged adjacent to the first forming roller 21, and the end of the pressure maintaining plate 41 is horizontally spaced apart from the bottom end of the first forming roller 21 by a mounting interval 42. The pressure maintaining section is arranged in the mounting interval 42, and the two ends of the pressure maintaining section are connected to the pressure maintaining plate 41 and the first forming roller 21 respectively. Figure 1 and Figure 2 The pressure maintaining plate 41 and the pressure maintaining section are arranged opposite to the support plate 34 and form a pressure maintaining interval. The pressure maintaining interval is connected to the compacting space 23, and the height of the pressure maintaining interval is the same as the height of the compacting space 23.

[0036] Based on the above structure, when the ceramic powder forming device is used, the ceramic powder is first put into the hopper 1 of the feeding assembly, and then is transported from the inlet end 11 to the feeding end 12 by the feeding channel 10 in the hopper 1. After the powder layer is formed in the feeding channel 10, the powder is sent into the compacting space 23 from the feeding end 12. In the compacting space 23, the first forming roller 21 and the second forming roller 22 jointly apply pressure to the powder layer to perform roller compaction forming. During the roller compaction, the powder is compacted and solidified to form a preliminary brick body 5 structure.

[0037] Subsequently, the brick body 5 is pushed out of the compacting space 23 by the forming roller assembly 2 and enters the pressure maintaining interval. In the pressure maintaining interval, the pressure maintaining section and the pressure maintaining plate 41 apply continuous pressure to the brick body 5. Since the height of the pressure maintaining interval is the same as the height of the compacting space 23, the expansion of the brick body 5 can be limited, and the expansion of the brick body 5 due to the release of internal stress can be prevented. Subsequently, the brick body 5 can be output from the pressure maintaining interval for subsequent processing and treatment.

[0038] It should be noted that in the conventional brick 5 forming device, the pressure maintaining plate 41 is arranged adjacent to and spaced apart from the first forming roller 21, so that when the device is adjusted to adapt to the production of different specifications of brick 5, the pressure maintaining plate 41 and the first forming roller 21 will not interfere with each other and will not wear each other. However, this structure causes the brick 5 to experience a stage of gradually decreasing pressure or even complete loss of pressure during the process of moving away from the first forming roller 21 and towards the pressure maintaining plate 41. At this stage, the brick 5 is prone to swelling, especially when it is about to enter the bottom of the pressure maintaining plate 41, it may suddenly swell and hit the side step of the pressure maintaining plate 41 due to the gradual loss of direct pressure from the first forming roller 21, thereby causing damage to the edges of the brick 5 or internal stress concentration, and thus increasing the risk of cracks and cracks.

[0039] Therefore, the present application provides a pressure maintaining section in the installation interval 42 between the pressure maintaining plate 41 and the first forming roller 21, and the two ends of the pressure maintaining section are respectively connected with the pressure maintaining plate 41 and the first forming roller 21, so that the pressure maintaining interval is connected with the compaction space 23 to form a continuous pressure maintaining area, and the brick 5 is maintained under pressure after leaving the first forming roller 21.

[0040] Therefore, the present application forms a continuous pressure maintaining area between the compaction space 23 and the pressure maintaining assembly by providing the pressure maintaining section, so that the brick 5 can maintain a stable pressure state during movement, thereby avoiding damage caused by the brick 5 hitting the step of the pressure maintaining plate 41, and reducing the downtime adjustment time caused by the swelling of the brick 5, and improving the production efficiency. And after the pressure maintaining treatment, the structure of the brick 5 is more stable, reducing the risk of internal stress concentration and crack generation, which helps to improve the overall quality and consistency of the product.

[0041] In addition, when the device adjusts the distance between the first forming roller 21 and the second forming roller 22 to adapt to the production of different specifications of brick 5, the pressure maintaining plate 41 and the first forming roller 21 will not interfere with each other and will not wear each other, thereby enhancing the flexibility and adaptability of the device.

[0042] The structure and use of the pressure maintaining section are described below through Example Two and Example Three:

[0043] Example Two

[0044] Reference Figure 1 In this embodiment, the pressure maintaining section is a pressure maintaining plate 43, and the pressure maintaining plate 43 is detachably connected with the pressure maintaining plate 41. Among them, the lower surface of the pressure maintaining plate 43, the lower surface of the pressure maintaining plate 41 and the first compaction surface are arranged flush.

[0045] It should be noted that the height of the compaction space 23 needs to be set according to the thickness of the green brick 5 to be made, and the height of the compaction space 23 is adjusted by adjusting the pressing distance of the first forming roller 21 relative to the second forming roller 22. At the same time, the height of the pressure maintaining interval also needs to be adjusted according to the thickness of the green brick 5, and the height of the pressure maintaining interval is adjusted by adjusting the distance between the pressure maintaining plate 41 and the supporting plate 34.

[0046] On the basis of this structure, when assembling, the pressure maintaining plate 43 can be installed into the installation interval 42 after the first forming roller 21 and the pressure maintaining plate 41 are adjusted in place, one end of the pressure maintaining plate 43 is connected with the pressure maintaining plate 41, the other end of the pressure maintaining plate 43 is connected with the first forming roller 21, and the first forming roller 21 can rotate close to the pressure maintaining plate 43. During installation, it is necessary to ensure that the lower surface of the pressure maintaining plate 43, the lower surface of the pressure maintaining plate 41 and the first compaction surface are flush, so as to ensure the compaction effect and surface quality of the green brick 5.

[0047] Among them, the pressure maintaining plate 43 and the pressure maintaining plate 41 can be connected through the slot and the buckle, specifically, the slot is arranged on the pressure plate section, and the corresponding buckle structure is arranged on the pressure maintaining plate 41, by inserting the buckle into the slot, the elastic buckle is used to realize the fastening and detachable connection mode. In addition, PTFE, POM and other friction reducing materials can be arranged on the end of the pressure maintaining plate 43 close to the first forming roller 21, which can effectively reduce the friction between the first forming roller 21 and the pressure maintaining plate 43, and improve the operation efficiency and service life of the equipment.

[0048] Therefore, through the detachable connection of the pressure maintaining plate 43 and the pressure maintaining plate 41, the installation can be conveniently and quickly carried out, and after the pressure maintaining plate 43 is worn out after long-term use, only the pressure maintaining plate 43 needs to be replaced, without replacing the pressure maintaining plate 41, thereby reducing the maintenance cost.

[0049] Embodiment three

[0050] Reference Figure 2 In this embodiment, the pressure maintaining assembly includes a pressure belt 44, and the pressure belt 44 is tightly attached to the lower surface of the pressure maintaining plate 41 and the first compaction surface. Among them, the belt section of the pressure belt 44 located in the installation interval 42 is formed into a pressure maintaining section, and the pressure belt 44 and the supporting plate 34 form the pressure maintaining interval.

[0051] On the basis of this structure, when using the pressure maintaining assembly of this embodiment, the first forming roller 21 and the pressure maintaining plate 41 can be adjusted in place during assembly, and the first compaction surface and the lower surface of the pressure maintaining plate 41 are flush, then the pressure belt 44 is tightly attached to the lower surface of the pressure maintaining plate 41 and the first compaction surface of the first forming roller 21, and the pressure belt 44 is in a tensioned state.

[0052] Since the pressure belt 44 extends from the lower surface of the pressure plate 41 to the first compacting surface of the first forming roller 21, and the belt segment of the installation interval 42 is formed as a pressure maintaining segment, the green brick 5 is subjected to the pressure holding effect transmitted by the first forming roller 21 to the pressure belt 44 in the compacting space 23, so that the green brick 5 is gradually compacted and reaches the required density and thickness, and the pressure holding effect continues to act on the green brick 5 as it is conveyed forward. When the green brick 5 moves below the installation interval 42, the first forming roller 21 and the pressure plate 41 jointly apply uniform pressure to the green brick 5 through the pressure maintaining segment of the pressure belt 44. When the green brick 5 moves below the pressure plate 41, the pressure plate 41 applies uniform pressure to the green brick 5 through the pressure belt 44 until the green brick 5 leaves the pressure interval.

[0053] In the process of moving the green brick 5, the height of the compacting space 23 and the pressure interval remains unchanged, so that the green brick 5 can continue to be subjected to pressure during its movement away from the first forming roller 21 and towards the pressure structure, which effectively avoids the problem of expansion of the green brick 5 due to internal stress release.

[0054] It is worth noting that the presence of the pressure maintaining segment realizes a gradual process of compacting pressure and pressure maintaining pressure, which can prevent the problem of stress concentration caused by sudden pressure changes on the green brick 5 in the compacting space 23 and the pressure interval. At the same time, the pressure maintaining segment blocks the installation interval 42, so that the green brick 5 does not suddenly lose pressure and hit the side step when it reaches the bottom of the pressure structure, which greatly reduces the risk of edge damage and internal stress concentration of the green brick 5.

[0055] Further, the pressure assembly further comprises a driven roller 45, which is arranged on one side of the first forming roller 21, and the pressure belt 44 is arranged around the driven roller 45 and the first forming roller 21.

[0056] Specifically, the pressure belt 44 comprises a first arc-shaped segment, a second arc-shaped segment, a first connecting segment and a second connecting segment, and the first arc-shaped segment is arranged in close contact with the first forming roller 21, and the second arc-shaped segment is arranged in close contact with the driven roller 45, wherein the first connecting segment and the second connecting segment are respectively connected to the first arc-shaped segment and the second arc-shaped segment, and the second connecting segment is in close contact with the lower surface of the pressure plate 41 and the first compacting surface.

[0057] On the basis of this structure, in use, when the layer of powder enters the compacting space 23, the first forming roller 21 rotates at a certain speed under the drive of the motor, its surface is in close contact with the first arc-shaped segment of the pressure belt 44, the first forming roller 21 drives the pressure belt 44 to rotate together, and the end of the first arc-shaped segment compacts the layer of powder below it to form the green brick 5. Subsequently, the green brick 5 enters below the installation interval 42 and is received and held by the second connecting segment.

[0058] The compression belt 44 can be a leather belt or a steel belt. The compression belt 44 rotates under the drive of the first forming roller 21 and moves relative to the lower surface of the compression plate 41.

[0059] Since the first arc segment and the second connecting segment are continuous segments, a continuous compression surface is formed between the first compression surface and the lower surface of the compression plate 41, which ensures the continuity and stability of the compaction process and greatly improves the production efficiency and product quality.

[0060] In addition, the driven roller 45 rotates under the drive of the compression belt 44 and serves as a support for the compression belt 44 and ensures the smooth rotation of the compression belt 44.

[0061] Further, the lower surface of the compression plate 41 is made of a friction-reducing material.

[0062] Specifically, a layer of PTFE (polytetrafluoroethylene) or POM (polyoxymethylene) or other high-performance friction-reducing material can be provided on the lower surface of the compression plate 41. More specifically, a thin sheet of PTFE or POM material can be adhered to the lower surface of the compression plate 41 using an adhesive, or recesses or mounting positions can be machined on the lower surface of the compression plate 41, and then a block or strip-shaped component made of PTFE or POM material can be inlaid into the recesses or mounting positions. These materials have extremely low friction coefficients and excellent wear resistance, which can effectively reduce the frictional resistance of the compression belt 44 during relative movement with the lower surface of the compression plate 41, thereby prolonging the service life of the compression belt 44 and the compression plate 41 and reducing energy consumption.

[0063] Further, the compression assembly includes a compression drive 46 for driving the compression plate 41 to move up and down relative to the support plate 34.

[0064] Thus, when the forming roller assembly 2 adjusts the height of the compaction space 23 through the up-and-down movement of the first forming roller 21, the compression assembly can drive the compression plate 41 to move up and down relative to the support plate 34 through the compression drive 46, so that the height of the compression gap is equal to the height of the compaction space 23, and at the same time, the lower surface of the compression plate 41 is flush with the first compaction surface.

[0065] Further, the feeding channel 10 includes an inlet section 15 and a feeding section 16 distributed from top to bottom, wherein the inlet section 15 is provided with a pushing screw 17, and the feeding section 16 is in the form of an arc segment, and the lower end of the feeding section 16 extends to the compaction space 23 and forms the feeding end 12.

[0066] On the basis of the structure, when the powder is conveyed, the powder in the feeding section 15 enters the feeding section 16 under the pushing of the pushing screw 17. Since the feeding section 16 is in the form of a curved arc section, when the powder enters the feeding section 16 from the feeding section 15, the powder gradually accumulates in the curved arc section to form a powder layer with a certain thickness and density, and is sent into the compacting space 23 by the feeding end 12.

[0067] The curved arc section is arranged to enable the powder to be guided from the vertical direction to the horizontal direction by the feeding channel 10, so that the powder layer enters the compacting space 23 at a horizontal angle. Specifically, when the powder accumulates to a certain extent in the feeding section 16, the powder gradually slides into the compacting space 23 under the action of gravity and the pushing of the pushing screw 17. In this process, the powder gradually changes direction along the shape of the curved arc section and finally enters the compacting space 23 at a suitable angle.

[0068] Therefore, the multi-section arrangement of the feeding channel 10 not only ensures stable conveying of the powder, but also reduces the loss and waste of the powder during the conveying process. In addition, the accumulation of the powder in the curved arc section can reduce the air content in the powder, which not only helps to uniformly distribute the powder, but also improves the cohesion between the powders.

[0069] Further, the vertical cross section of the feeding end 12 is square, so that the powder layer at the feeding end 12 is in the form of a square cross section with uniform thickness.

[0070] Further, the hopper 1 is connected to the compacting space 23 by a discharge pipeline, and the discharge pipeline is detachably connected to the hopper 1. The discharge pipeline is provided with a discharge channel 14, and the discharge channel 14 connects the feeding channel 10 and the compacting space 23. In addition, the height and width of the discharge channel 14 can be adjusted.

[0071] On the basis of the structure, in use, the discharge pipeline is first connected to the feeding section 16 to ensure firm and stable connection. When the powder passes through the feeding section 16, it enters the discharge pipeline. In the discharge pipeline, the powder material continues to move along the discharge channel 14 and gradually adjusts its shape and thickness, and forms a powder layer with uniform thickness at the end of the discharge channel 14.

[0072] The discharge pipeline extends in the horizontal direction, and the vertical cross section of the discharge pipeline is rectangular. Different specifications of the discharge pipeline can be selected according to actual needs, specifically, discharge pipelines with discharge channels 14 of different heights and different widths are selected, and the discharge pipeline and the feeding section 16 can be detachably connected in a plug-in or splicing manner, which facilitates replacement of the discharge pipeline, thereby realizing height adjustment and width adjustment of the discharge channel 14 to adapt to the production requirements of different sizes and shapes of the green bricks 5.

[0073] Thus, the setting of the discharge pipe makes the device adapt to the production requirements of bricks 5 of different sizes. And the presence of the discharge pipe makes the cross-sectional shape of the powder material better adjusted before entering the compaction space 23, which helps to reduce the flowability and energy consumption of the material during compaction, improve the compaction efficiency and the quality of the bricks 5.

[0074] In addition, at the connection between the feeding section 16 and the discharge pipe, some transition structures (such as gradual change plates, guide plates, etc.) can be provided to further ensure the smooth transition of the powder material and reduce the leakage or accumulation of the powder at the connection.

[0075] Further, referring to Figure 3 The two sides of the compaction space 23 are provided with a baffle strip 31, and the two sides of the discharge channel 14 are provided with an adjusting plate 32, and the baffle strip 31 extends from the compaction space 23 to the discharge channel 14 and is connected with the adjusting plate 32. The adjusting plate 32 on one side of the discharge channel 14 can be close to or away from the adjusting plate 32 on the other side, so that the width of the discharge interval can be adjusted.

[0076] It should be noted that when the two sides of the discharge channel 14 are not provided with the adjusting plate 32, the width of the powder layer discharged through the discharge channel 14 is equal to the width of the discharge channel 14. In this embodiment, by providing the adjusting plate 32 on both sides of the discharge channel 14, the width of the powder layer discharged through the discharge channel 14 is equal to the distance between the two adjusting plates 32, so as to adapt to the production requirements of bricks 5 of more different specifications.

[0077] On the basis of this structure, during conveying, the discharge pipe that meets the thickness requirement of the bricks 5 to be produced can be selected from the pre-set multiple discharge pipes, and the discharge pipe is seamlessly connected with the feeding section 16, so as to avoid leakage or accumulation of the powder during the transition process.

[0078] Then, according to the width of the selected bricks 5, the adjusting plate 32 in the discharge pipe is adjusted, which can be realized by manual adjustment, mechanical device or automatic control system, and the width of the discharge interval is adjusted to match the width of the selected bricks 5.

[0079] Since one end of the baffle strip 31 is connected with the adjusting plate 32, when the powder layer is discharged from the discharge pipe, it is received and guided by the baffle strip 31. Since the powder on both sides of the powder layer is constrained by the baffle strip 31, the powder layer can maintain a uniform thickness when entering the compaction space 23.

[0080] Wherein, one end of the baffle strip 31 and one end of the adjusting plate 32 can be mutually embedded or connected by a screw or the like, so that when the adjusting plate 32 moves to adjust the discharging interval width, the baffle strip 31 will also move accordingly, thereby automatically keeping the width of the baffle interval between the two baffle strips 31 consistent with the discharging interval width.

[0081] In summary, the ceramic powder forming device of the present application realizes a continuous production process from powder to green brick 5. The distribution of the hopper 1, the compaction of the forming roller, the pressure maintenance of the pressure maintaining assembly, and the output of the receiving device 4 together constitute an efficient and stable production system, meeting the needs of large-scale production. This system can continuously and stably output high-quality green bricks 5, and the formed green bricks 5 are less likely to have voids, bubbles, etc. inside, and the green bricks 5 are less likely to have cracks, delamination, etc. on the surface.

[0082] In addition, during the preparation process, the installation gap 42 between the pressure maintaining plate 41 and the first forming roller 21 is properly handled, avoiding the collision of the green brick 5 with the side step of the pressure maintaining plate 41 or the green brick being stuck in the device. Once the green brick is stuck, the entire production process will be forced to stop, and the structure of the green brick 5 may also be damaged. Since the present application avoids the above problems, the green brick 5 does not need to be adjusted when outputting the green brick 5, thereby ensuring the stable operation of the production line and further improving the overall production efficiency.

[0083] The technical means disclosed by the technical scheme of the present application is not limited to the technical means disclosed by the above-mentioned embodiments, but also includes technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A ceramic powder forming device, characterized in that: include, The forming roller assembly includes a first forming roller and a second forming roller. The first forming roller and the second forming roller are arranged opposite each other in the vertical direction. The bottom end of the first forming roller has a first compaction surface, and the top end of the second forming roller has a second compaction surface. A compaction space is formed between the first compaction surface and the second compaction surface. A feeding assembly includes a hopper, the hopper having a feeding channel, the two ends of the feeding channel being an inlet end and a feeding end, the feeding end extending to the compaction space, and the feeding channel being used to convey powder material along the direction from the inlet end to the feeding end. The pressure-holding assembly includes a support plate, a pressure-holding plate, and a pressure-maintaining section. The pressure-holding plate is disposed adjacent to the first forming roller, and there is a horizontal installation gap between the end of the pressure-holding plate and the bottom end of the first forming roller. The pressure-maintaining section is disposed in the installation gap, and its two ends are respectively connected to the pressure-holding plate and the first forming roller. The pressure-holding plate and the pressure-maintaining section are both disposed opposite to the support plate and form a pressure-holding gap. The pressure-holding gap is connected to the compaction space, and the height of the pressure-holding gap is the same as the height of the compaction space.

2. The ceramic powder forming equipment according to claim 1, characterized in that: The pressure-maintaining section is a pressure-maintaining plate, which is detachably connected to the pressure-holding plate; the lower surface of the pressure-maintaining plate, the lower surface of the pressure-holding plate, and the first compaction surface are all flush.

3. The ceramic powder forming equipment according to claim 1, characterized in that: The pressure-holding assembly includes a pressure band that is in close contact with the lower surface of the pressure-holding plate and the first compaction surface; the section of the pressure band located in the installation interval forms the pressure-holding section; and the pressure band and the support plate form the pressure-holding interval.

4. The ceramic powder forming equipment according to claim 3, characterized in that: The pressure holding assembly includes a driven roller, which is disposed on one side of the first forming roller, and the pressure strip is disposed around the driven roller and the first forming roller.

5. The ceramic powder forming equipment according to claim 4, characterized in that: The lower surface of the pressure plate is made of a friction-reducing material.

6. The ceramic powder forming equipment according to any one of claims 1-5, characterized in that: The pressure holding assembly includes a pressure holding drive component, which is used to drive the pressure holding plate to move up and down relative to the support plate.

7. The ceramic powder forming equipment according to claim 1, characterized in that: The feeding channel includes an infeed section and a feeding section distributed from top to bottom. The infeed section is equipped with a pusher screw. The feeding section is a curved section, and the lower end of the feeding section extends to the compaction space and forms the feeding end.

8. The ceramic powder forming equipment according to claim 7, characterized in that: The vertical cross-section of the feeding end is square.

9. The ceramic powder forming equipment according to claim 7, characterized in that: The hopper and the compaction space are connected by a discharge pipe, and the discharge pipe is detachably connected to the hopper; the discharge pipe is provided with a discharge channel, which connects the feeding channel and the compaction space; the height and width of the discharge channel are adjustable.

10. The ceramic powder forming equipment according to claim 9, characterized in that: The compaction space is provided with side guards on both sides, and the discharge channel is provided with adjustment plates on both sides. The side guards extend from the compaction space to the discharge channel and connect with the adjustment plates. A discharge interval is formed between the adjustment plates on both sides of the discharge channel. The adjustment plate on one side can move closer to or further away from the adjustment plate on the other side so that the width of the discharge interval is adjustable.

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