Energy-saving insulation board and insulation block forming equipment

Abstract

The present application relates to building insulation material forming equipment technical field, disclose a kind of energy-saving insulation board and insulation block forming equipment, wherein the special-shaped section insulation block partition vibration forming device includes rack, mould assembly, partition vibration component, pressing assembly and conveying part. Mould assembly divides cavity into main body cavity and thin-walled auxiliary cavity, partition vibration component is configured with independent eccentric vibrator for two cavity regions, and respective vibration frequency and amplitude can be individually adjusted, and pressing assembly is realized with the profiling ram with height difference each region slurry synchronous pressure forming.

Description

Technical Field

[0001] This invention relates to the field of building insulation material molding equipment, specifically to an energy-saving insulation board and insulation block molding equipment. Background Technology

[0002] The cross-section of irregularly shaped thermal insulation blocks includes both thick-walled and thin-walled regions, with significant differences in cavity depth and wall constraint conditions between the two regions. Existing molding equipment typically applies a uniform vibration frequency and amplitude to the entire mold cavity, making it impossible to adjust vibration parameters separately for the cavity characteristics of different regions.

[0003] When the vibration intensity is sufficient to overcome the friction of the cavity wall and achieve dense filling of the slurry in the thin-walled area, this intensity often exceeds the critical value for segregation of lightweight aggregates in the thick-walled area, leading to uneven density distribution in the thick-walled area, with aggregates floating and slurry settling. Conversely, if the vibration intensity is controlled within the range that inhibits aggregate segregation in the thick-walled area, the slurry in the thin-walled area will not be densely filled due to insufficient overcoming of the wall friction. In addition, when existing planar pressure heads press cavities of unequal depths, the pressure stroke in each area is inconsistent, making it impossible to achieve synchronous and uniform pressing, further affecting the molding quality of various parts of the green body. Summary of the Invention

[0004] This invention provides a partitioned vibration molding device for thermal insulation blocks with irregular cross-sections, which solves the technical problem in related technologies that uniform vibration parameters cannot simultaneously meet the requirements for dense filling of slurry in cavity areas of unequal depth.

[0005] This invention discloses a partitioned vibration molding device for irregular cross-section thermal insulation blocks, including a frame, a mold assembly, a partitioned vibration assembly, a pressing assembly, and a conveying component. The mold assembly is positioned at the pressing station of the frame, the partitioned vibration assembly is installed at the bottom of the mold assembly, the pressing assembly is installed on the frame and located directly above the mold assembly, and the conveying component is arranged downstream of the pressing station along the conveying direction.

[0006] Furthermore, the height difference between the first pressing surface and the second pressing surface is equal to the difference between the depth of the main mold cavity and the depth of the thin-walled auxiliary mold cavity. When the piston rod of the gas-hydraulic booster cylinder drives the contour pressing head to descend to the set end point of the stroke, the first pressing surface and the second pressing surface simultaneously reach the surface of the slurry in their respective cavity areas.

[0007] Furthermore, the connecting slot is a rectangular through slot extending along the width of the mold, located near the bottom of the main mold cavity and the thin-walled auxiliary mold cavity. The cross-sectional area of ​​the connecting slot is smaller than the cross-sectional area of ​​the cavity of the main mold cavity and the thin-walled auxiliary mold cavity, so that the bottom space of the two cavity areas is interconnected.

[0008] Furthermore, the main mold cavity bottom plate and the thin-walled auxiliary mold cavity bottom plate are respectively connected to the corresponding positioning holes at the bottom of the mold frame through positioning pins. The positioning pins constrain the displacement of the main mold cavity bottom plate and the thin-walled auxiliary mold cavity bottom plate along the conveying direction and the mold width direction during vibration. The main mold cavity bottom plate and the thin-walled auxiliary mold cavity bottom plate bear pressure on the positioning step surface at the bottom of the mold frame in the vertical direction. After molding, the main mold cavity bottom plate and the thin-walled auxiliary mold cavity bottom plate, together with the blank, are separated from the mold frame in the vertical direction.

[0009] Furthermore, the first eccentric vibrator includes a first vibration motor body, a first eccentric block, and an output shaft. The first vibration motor body is fixedly connected to the lower surface of the main mold cavity bottom plate by bolts, and the output shaft axis of the first eccentric block and the output shaft extends along the width direction of the mold. The second eccentric vibrator includes a second vibration motor body, a second eccentric block, and an output shaft. The second vibration motor body is fixedly connected to the lower surface of the thin-walled auxiliary mold cavity bottom plate by bolts, and the output shaft axis of the second eccentric block and the output shaft extends along the width direction of the mold. The principal component of the centrifugal excitation force generated when the eccentric blocks in the first eccentric block and the output shaft rotate with their respective output shafts is located in the plane formed by the transmission direction and the vertical direction.

[0010] Furthermore, the operating frequency of the second eccentric vibrator is higher than that of the first eccentric vibrator, and the amplitude of the second eccentric vibrator is greater than that of the first eccentric vibrator. The first and second eccentric vibrators are moved out of the pressing station together with their respective main mold cavity base plates and thin-walled auxiliary mold cavity base plates. After being separated from the main mold cavity base plates and thin-walled auxiliary mold cavity base plates in the curing area, they are recycled back to the pressing station.

[0011] Furthermore, a displacement sensor is embedded in the side wall of the thin-walled auxiliary mold cavity. The probe of the displacement sensor points vertically to the position of the slurry surface inside the cavity, and collects the amount of slurry surface drop in the thin-walled auxiliary mold cavity in real time. The signal output terminal of the displacement sensor is electrically connected to the independent drive controller corresponding to the second eccentric vibrator. When the slurry surface drop reaches the preset vibration settling threshold, the independent drive controller outputs a stop command to stop the second eccentric vibrator, and then the first eccentric vibrator stops operating.

[0012] Furthermore, the pressing assembly also includes a guiding component, which includes a guide post fixedly installed on the frame and extending vertically, and a guide sleeve fixedly installed on the conforming pressure head. The guide sleeve is sleeved on the outer periphery of the guide post and forms a sliding fit with the outer wall surface of the guide post. When the conforming pressure head moves with the piston rod, the guide sleeve slides along the axial direction of the guide post. There are four guide posts, distributed at the four corners of the conforming pressure head, and a guide sleeve is installed on each guide post.

[0013] Furthermore, the extended end of the piston rod of the gas-liquid booster cylinder is provided with a flange, the top surface of the conforming pressure head is provided with a flange mating surface, and the piston rod and the conforming pressure head are fixedly connected by bolts through the flange; a rounded transition surface is provided at the step transition between the first pressing surface and the second pressing surface.

[0014] Furthermore, it also includes a conveying component and a metering pump. The conveying component is fixedly installed on the frame and arranged downstream of the pressing station along the conveying direction. The conveying component includes multiple rollers arranged sequentially along the conveying direction. The two ends of the rollers are respectively supported on the side frame of the frame and can rotate freely around their own axis. The main mold cavity bottom plate and the thin-walled auxiliary mold cavity bottom plate, together with the blank, rest on the roller surface and move along the conveying direction. The metering pump is fixedly installed on the frame. The inlet of the metering pump is connected to the material storage device through a pipeline, and the outlet of the metering pump is connected to the injection port on the top surface of the mold frame through a pipeline.

[0015] This invention equips the main mold cavity and the thin-walled auxiliary mold cavity with independent eccentric vibrators, each with adjustable vibration frequency and amplitude. The eccentric vibrator in the thin-walled auxiliary mold cavity operates at a higher frequency and larger amplitude, overcoming the wall-constraining friction of the slurry in the thin-walled area with the periodic vibration inertial force, achieving full and dense filling of the slurry in the narrow space of the thin wall, thus solving the technical problem that uniform vibration parameters cannot overcome wall friction in the thin-walled area. The eccentric vibrator in the main mold cavity operates independently at a lower frequency and smaller amplitude, maintaining the vibration intensity below the critical intensity for segregation of lightweight aggregates, ensuring that the slurry in the thick-walled area is kept within a certain temperature range. The material achieves dense compaction under vibration without aggregate floating, solving the technical problem of uneven slurry density distribution in thick-walled areas caused by increased overall vibration intensity. The height difference between the first and second pressing surfaces of the contouring indenter is equal to the depth difference between the two cavity regions, ensuring that the slurry in each region is simultaneously subjected to uniform low static pressure within the same pressing stroke. This solves the technical problem of inconsistent pressure stroke in different regions when a planar indenter presses cavities of unequal depths. Displacement sensors embedded in the sidewalls of the thin-walled auxiliary mold cavity collect the slurry level drop in real time, providing quantitative criteria for determining when to stop vibration and reducing the risk of insufficient or excessive compaction. Attached Figure Description

[0016] Figure 1 This is a front view of the irregular cross-section thermal insulation block partition vibration molding device of the present invention; Figure 2 This is a longitudinal sectional view of the irregular cross-section thermal insulation block partition vibration molding device of the present invention; Figure 3 This is a cross-sectional view of the profiled pressure head of the irregular cross-section thermal insulation block partition vibration molding device of the present invention; Figure 4 This is a cross-sectional view of the eccentric vibrator of the irregular cross-section thermal insulation block partition vibration molding device of the present invention; Figure 5This is a longitudinal sectional view of the irregular cross-section thermal insulation block partition vibration molding device of the present invention; Figure 6 This is an isometric view of the irregular cross-section thermal insulation block partition vibration molding device of the present invention.

[0017] In the diagram: Frame-1; Mold frame-2; Main mold cavity bottom plate-3; Thin-walled auxiliary mold cavity bottom plate-4; Connecting slot-5; Positioning pin-6; Positioning step surface-7; First vibration motor body-8; First eccentric block and output shaft-9; Second vibration motor body-10; Second eccentric block and output shaft-11; Pneumatic-hydraulic booster cylinder body-12; Pneumatic-hydraulic booster cylinder piston rod-13; Contouring pressure head-14; First pressing surface-15; Second pressing surface-16; Rounded corner transition surface-17; Guide post-18; Guide sleeve-19; Flange-20; Displacement sensor-21; Roller-22; Metering pump-23. Detailed Implementation

[0018] The mold frame 2, together with the main mold cavity base plate 3 and the thin-walled auxiliary mold cavity base plate 4, is positioned and installed at the pressing station of the machine frame 1. The positioning pins 6 of the main mold cavity base plate 3 and the thin-walled auxiliary mold cavity base plate 4 are inserted into the positioning holes at the bottom of the mold frame 2 to complete the positioning and fixing of the mold assembly.

[0019] like Figure 1-6 Therefore, according to an embodiment of this invention, this embodiment provides a partitioned vibration molding device for irregularly shaped cross-section thermal insulation blocks, which includes at least a frame 1, a mold assembly, a partitioned vibration assembly, a pressing assembly, and a conveying component. The frame 1 serves as the overall support and positioning reference. The mold assembly is positioned at the pressing station of the frame 1. The partitioned vibration assembly is installed at the bottom of the mold assembly. The pressing assembly is installed on the frame 1 and located directly above the mold assembly. The conveying component is arranged downstream of the pressing station along the conveying direction.

[0020] The mold assembly includes a mold frame 2, a main mold cavity base plate 3, and a thin-walled auxiliary mold cavity base plate 4. The mold frame 2 encloses two independent cavity areas, namely the main mold cavity and the thin-walled auxiliary mold cavity. The main mold cavity corresponds to the thick-walled area in the block cross-section, and the thin-walled auxiliary mold cavity corresponds to the thin-walled area in the block cross-section. The inner wall of the mold frame 2 has a connecting slot 5, which is a rectangular through slot extending along the width of the mold, penetrating the partition wall between the main mold cavity and the thin-walled auxiliary mold cavity, and located near the bottom of the two cavity areas, so that the bottom spaces of the two cavity areas are interconnected, allowing the slurry to fill the two cavity areas simultaneously during the injection stage. The main mold cavity base plate 3 and the thin-walled auxiliary mold cavity base plate 4 are respectively embedded in the bottom of the mold frame 2, each sealing the bottom surface of the corresponding cavity area.

[0021] In some embodiments, the main mold cavity base plate 3 and the thin-walled auxiliary mold cavity base plate 4 are each engaged with corresponding positioning holes at the bottom of the mold frame 2 via positioning pins 6, achieving detachable positioning at the pressing station. The positioning pins 6 constrain the movement of the main mold cavity base plate 3 and the thin-walled auxiliary mold cavity base plate 4 along the conveying direction and the mold width direction during vibration. The main mold cavity base plate 3 and the thin-walled auxiliary mold cavity base plate 4 bear pressure on the positioning step surface 7 at the bottom of the mold frame 2 in the vertical direction. After molding is completed, the main mold cavity base plate 3 and the thin-walled auxiliary mold cavity base plate 4, together with the blank, can be detached from the mold frame 2 in the vertical direction and moved to the conveying component.

[0022] The zoned vibration assembly includes a first eccentric vibrator and a second eccentric vibrator. The first eccentric vibrator is fixedly installed on the lower surface of the main mold cavity base plate 3, and the second eccentric vibrator is fixedly installed on the lower surface of the thin-walled auxiliary mold cavity base plate 4. The first eccentric vibrator includes a first vibration motor body 8, a first eccentric block, and an output shaft 9. The first vibration motor body 8 is fixedly connected to the lower surface of the main mold cavity base plate 3 by bolts. The first eccentric block and the output shaft 9 are fixed to the output shaft of the first vibration motor body 8. The axis of the output shaft extends along the width direction of the mold. When the first eccentric block and the output shaft 9 rotate with the output shaft, they generate centrifugal excitation force. The main component of the excitation force is located in the plane formed by the conveying direction and the vertical direction. It is transmitted to the main mold cavity base plate 3 through the first vibration motor body 8, and then transmitted to the slurry in the main mold cavity by the main mold cavity base plate 3. The first eccentric vibrator operates at a lower frequency and a smaller amplitude, so that the slurry in the thick-walled area gradually compacts under controlled vibration intensity.

[0023] The second eccentric vibrator includes a second vibration motor body 10, a second eccentric block, and an output shaft 11. The second vibration motor body 10 is fixedly connected to the lower surface of the thin-walled auxiliary mold cavity bottom plate 4 by bolts. The second eccentric block and the output shaft 11 are fixed to the output shaft of the second vibration motor body 10. The axis of the output shaft also extends along the width direction of the mold. When the second eccentric block and the output shaft 11 rotate with the output shaft, they generate centrifugal excitation force, which is transmitted through the second vibration motor body 10 to the thin-walled auxiliary mold cavity bottom plate 4, and then from the thin-walled auxiliary mold cavity bottom plate 4 to the slurry in the thin-walled auxiliary mold cavity. The second eccentric vibrator operates at a higher frequency and a larger amplitude, enabling the slurry in the thin-walled area to overcome the friction of the cavity wall surface and achieve dense filling under the action of enhanced vibration.

[0024] It should be understood that the first and second eccentric vibrators are each connected to their respective independent drive controllers. These two independent drive controllers are fixedly installed in frame 1 or an electrical control cabinet adjacent to frame 1, and their vibration frequency and amplitude can be adjusted and set independently. The two eccentric vibrators independently transmit vibration energy through their respective base plates. The main mold cavity and the thin-walled auxiliary mold cavity are connected only through a connecting slot 5. The cross-sectional area of ​​the connecting slot 5 is much smaller than the cross-sectional area of ​​the mold cavity, resulting in low vibration coupling between the two cavity regions. The vibration parameters of each region can be controlled independently.

[0025] In some embodiments, the first eccentric vibrator and the second eccentric vibrator are moved out of the pressing station together with their respective main mold cavity base plate 3 and thin-walled auxiliary mold cavity base plate 4, and are recycled back to the pressing station after being separated from the main mold cavity base plate 3 and thin-walled auxiliary mold cavity base plate 4 in the curing area.

[0026] Furthermore, to provide an objective criterion for determining the compaction degree in the thin-walled area, a displacement sensor 21 is embedded in the side wall of the thin-walled auxiliary mold cavity. The probe of the displacement sensor 21 points vertically to the slurry surface inside the cavity, collecting the real-time drop in the slurry level within the thin-walled auxiliary mold cavity. The signal output terminal of the displacement sensor 21 is electrically connected to the independent drive controller corresponding to the second eccentric vibrator. When the drop in slurry level reaches the preset compaction and settling threshold, the independent drive controller outputs a stop command, the second eccentric vibrator stops operating, and subsequently the first eccentric vibrator stops operating.

[0027] The pressing assembly includes a pneumatic-hydraulic booster cylinder, a contouring press head 14, and guide components. The cylinder body 12 of the pneumatic-hydraulic booster cylinder is fixedly mounted on the top of the frame 1, directly above the mold assembly. The piston rod 13 of the pneumatic-hydraulic booster cylinder reciprocates linearly in the vertical direction, providing the pressing stroke when extended downwards and retracting upwards to reset. The contouring press head 14 is fixedly connected to the extended end of the piston rod 13 and moves synchronously with the piston rod 13 in the vertical direction.

[0028] The bottom contour of the contouring head 14 matches the top view contour of the irregular cross-section cavity. The contouring head 14 has at least two pressing surfaces: a first pressing surface 15 corresponding to the main mold cavity area and a second pressing surface 16 corresponding to the thin-walled auxiliary mold cavity area. There is a vertical height difference between the first pressing surface 15 and the second pressing surface 16, which is equal to the difference in depth between the main mold cavity area and the thin-walled auxiliary mold cavity area. Therefore, when the piston rod 13 of the pneumatic-hydraulic booster cylinder drives the contouring head 14 downward to the set end point of the stroke, the first pressing surface 15 and the second pressing surface 16 simultaneously reach the surface of the slurry in their respective corresponding cavity areas, so that the slurry in each area is synchronously subjected to uniform low static pressure within the same pressing stroke.

[0029] In some embodiments, a flange 20 is provided at the extended end of the piston rod 13 of the pneumatic-hydraulic booster cylinder, and a flange mating surface is provided on the top surface of the contouring head 14. The piston rod 13 of the pneumatic-hydraulic booster cylinder and the contouring head 14 are fixedly connected by bolts through the flange 20. When it is necessary to replace the contouring head 14 corresponding to a mold with a different irregular cross-section, the contouring head 14 can be removed from the piston rod 13 of the pneumatic-hydraulic booster cylinder and replaced by disassembling the flange bolts.

[0030] The guiding components include a guide post 18 and a guide sleeve 19. The guide post 18 is fixedly installed on the frame 1 and extends vertically. The guide sleeve 19 is fixedly installed on the conforming pressure head 14, sleeved around the outer periphery of the guide post 18, and forms a sliding fit with the outer wall surface of the guide post 18. When the conforming pressure head 14 moves with the piston rod 13 of the gas-hydraulic booster cylinder, the guide sleeve 19 slides along the axial direction of the guide post 18, constraining the conforming pressure head 14 to move only in a straight line in the vertical direction, preventing the conforming pressure head 14 from deflecting or shifting laterally during the pressing process.

[0031] In some embodiments, there are four guide posts 18, distributed at the four corners of the conforming indenter 14, and each guide post 18 is fitted with a guide sleeve 19. The four guide posts 18 form a four-point guiding constraint on the conforming indenter 14, improving the straightness and stability of the pressing stroke.

[0032] Furthermore, in order to reduce the demolding resistance of the blank by the step edge during the return stroke of the contour press head 14, a rounded transition surface 17 is provided at the step transition between the first pressing surface 15 and the second pressing surface 16.

[0033] The conveying components are fixedly installed on the frame 1 and arranged downstream of the pressing station along the conveying direction. After molding is completed, the main mold cavity bottom plate 3 and the thin-walled auxiliary mold cavity bottom plate 4, together with the blank, are moved out of the pressing station and sent into the curing area by the conveying components.

[0034] In some embodiments, the conveying component is a roller conveyor device, including multiple rollers 22 arranged sequentially along the conveying direction. The two ends of the rollers 22 are respectively supported on the side frames of the frame 1 and can rotate freely about their own axes. The main mold cavity bottom plate 3 and the thin-walled auxiliary mold cavity bottom plate 4, together with the blank, rest on the surface of the rollers 22 and move along the conveying direction.

[0035] In addition, the metering pump 23 is fixedly installed on the frame 1 or an external pipeline support. The inlet of the metering pump 23 is connected to the storage device through a pipeline, and the outlet of the metering pump 23 is connected to the injection port on the top surface of the mold frame 2 through a pipeline. The metering pump 23 injects the insulation slurry into the mold cavity in a metered manner.

[0036] Start metering pump 23 to inject the insulation slurry into the mold cavity in a measured amount. The slurry enters the main mold cavity through the injection port and simultaneously fills the thin-walled auxiliary mold cavity through the connecting slot 5 until the slurry level is flush with the top surface of the mold frame 2.

[0037] The second eccentric vibrator is started, and the independent drive controller drives the second vibration motor body 10 to operate at a higher frequency and a larger amplitude. The second eccentric block and output shaft 11 rotate with the output shaft to generate centrifugal excitation force. The excitation force is transmitted through the second vibration motor body 10 to the thin-walled auxiliary mold cavity bottom plate 4, and then from the thin-walled auxiliary mold cavity bottom plate 4 to the slurry in the thin-walled area. Under the enhanced vibration, the friction between particles and the constraint friction between the cavity wall and the slurry in the thin-walled area are periodically overcome by the vibration inertial force, and the slurry particles rearrange and gradually compact to fill the narrow space of the thin wall. Simultaneously, the first eccentric vibrator is started, and the independent drive controller drives the first vibration motor body 8 to operate at a lower frequency and a smaller amplitude. The first eccentric block and output shaft 9 rotate with the output shaft to generate centrifugal excitation force. The excitation force is transmitted through the first vibration motor body 8 to the main mold cavity bottom plate 3, and then from the main mold cavity bottom plate 3 to the slurry in the thick-walled area. Under gentle vibration, the slurry in the thick-walled zone gradually compacts and arranges itself. The vibration intensity is lower than the critical vibration intensity at which lightweight aggregates segregate in the thick-walled zone slurry, thus inhibiting aggregate flotation.

[0038] In some embodiments, the timing of the vibration cessation is determined by the displacement sensor 21. The displacement sensor 21 collects the amount of slurry level drop in the thin-walled auxiliary mold cavity in real time. When the slurry level drop reaches a preset compaction and settling threshold, the independent drive controller outputs a stop command, and the second eccentric vibrator stops operating. Subsequently, the first eccentric vibrator stops operating, and the zoned vibration phase ends.

[0039] The piston rod 13 of the pneumatic-hydraulic booster cylinder extends downward, driving the contouring pressure head 14 to descend vertically along the guide post 18. The guide sleeve 19 slides on the outer wall of the guide post 18, constraining the contouring pressure head 14 to move linearly in the vertical direction. The first pressing surface 15 and the second pressing surface 16 of the contouring pressure head 14 are respectively aligned with the main mold cavity area and the thin-walled auxiliary mold cavity area. When the piston rod 13 of the pneumatic-hydraulic booster cylinder descends to the set end point of the stroke, the first pressing surface 15 reaches the surface of the slurry in the main mold cavity, and the second pressing surface 16 simultaneously reaches the surface of the slurry in the thin-walled auxiliary mold cavity. The slurry in each area is subjected to uniform low static pressure at the same time, and the slurry is further compacted under static pressure, completing the blank forming.

[0040] The piston rod 13 of the pneumatic-hydraulic booster cylinder retracts upward, driving the contouring pressure head 14 to move vertically upward along the guide post 18 to reset and detach from the surface of the blank. The formed irregular block blank, together with the main mold cavity bottom plate 3 and the thin-walled auxiliary mold cavity bottom plate 4, is moved out of the pressing station and sent into the curing area along the conveying direction by the conveying component.

[0041] This embodiment divides the irregular cross-section mold cavity into two independent regions: the main mold cavity and the thin-walled auxiliary mold cavity. Each region is equipped with an independent eccentric vibrator, and the vibration frequency and amplitude of each can be adjusted independently. Because the second eccentric vibrator of the thin-walled auxiliary mold cavity acts independently on the bottom plate 4 of the thin-walled auxiliary mold cavity with a higher frequency and larger amplitude, the applied vibration energy is enhanced to address the large ratio between the wall friction and the slurry weight in this region. This allows the wall constraint friction of the slurry within the narrow space to be overcome by the periodic vibration inertial force, thus achieving sufficient and dense filling of the slurry in the thin-walled area. This solves the problem that a uniform vibration frequency and amplitude cannot overcome wall friction in the thin-walled area.

[0042] Because the first eccentric vibrator of the main mold cavity operates independently at a lower frequency and a smaller amplitude, the vibration intensity is maintained below the critical intensity at which the lightweight aggregate in the thick-walled slurry undergoes stratification and segregation. Therefore, the thick-walled slurry completes a dense arrangement under gentle vibration without the phenomenon of lightweight aggregate floating and heavy slurry sinking. This solves the problem of uneven density distribution of the thick-walled slurry caused by increasing the overall vibration intensity.

[0043] Because the vertical height of each pressing surface of the contouring indenter 14 matches the depth of the corresponding mold cavity area one by one, the height difference between the first pressing surface 15 and the second pressing surface 16 is equal to the depth difference between the two cavity areas. Therefore, the amount of pressure on the slurry in each area is consistent within the same pressing stroke. The thin-walled area and the thick-walled area are simultaneously subjected to uniform low static pressure, which solves the problem of inconsistent pressure stroke in each area when the planar indenter presses cavities of different depths.

[0044] In addition, the real-time acquisition of the slurry surface settling amount in the thin-walled area by the displacement sensor 21 provides an objective quantitative criterion for the timing of vibration cessation, avoiding the risk of insufficient or excessive compaction caused by relying on experience estimation, and further ensuring the compaction uniformity of each area of ​​the block blank.

[0045] The embodiments of the present invention have been described above. However, the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make more equivalent embodiments under the guidance of the present embodiments, and all of them are within the protection scope of the present embodiments.

Claims

1. A zoned vibration molding device for irregularly shaped cross-section thermal insulation blocks, characterized in that, include: Rack (1); The mold assembly is positioned at the pressing station of the frame (1) and includes a mold frame (2), a main mold cavity bottom plate (3) and a thin-walled auxiliary mold cavity bottom plate (4). The mold frame (2) encloses the main mold cavity and the thin-walled auxiliary mold cavity. The main mold cavity bottom plate (3) and the thin-walled auxiliary mold cavity bottom plate (4) are respectively embedded in the bottom of the mold frame (2) and each closes the bottom surface of the corresponding cavity area. The inner wall of the mold frame (2) is provided with a connecting slot (5) that penetrates the partition wall between the main mold cavity and the thin-walled auxiliary mold cavity. The partitioned vibration assembly includes a first eccentric vibrator fixedly installed on the lower surface of the main mold cavity bottom plate (3) and a second eccentric vibrator fixedly installed on the lower surface of the thin-walled auxiliary mold cavity bottom plate (4). The first eccentric vibrator and the second eccentric vibrator are respectively connected to an independent drive controller. The pressing assembly is installed on the frame (1) and located directly above the mold assembly. It includes a pneumatic-hydraulic booster cylinder and a contouring press head (14). The contouring press head (14) is fixedly connected to the extended end of the piston rod (13) of the pneumatic-hydraulic booster cylinder. The contouring press head (14) has a first pressing surface (15) corresponding to the main mold cavity and a second pressing surface (16) corresponding to the thin-walled auxiliary mold cavity. There is a vertical height difference between the first pressing surface (15) and the second pressing surface (16).

2. The irregular cross-section thermal insulation block partition vibration molding device according to claim 1, characterized in that, The height difference between the first pressing surface (15) and the second pressing surface (16) is equal to the difference between the depth of the main mold cavity and the depth of the thin-walled auxiliary mold cavity. When the piston rod (13) of the gas-hydraulic booster cylinder drives the contour pressing head (14) to descend to the set end point of the stroke, the first pressing surface (15) and the second pressing surface (16) simultaneously reach the surface of the slurry in their respective corresponding cavity areas.

3. The irregular cross-section thermal insulation block partition vibration molding device according to claim 1, characterized in that, The connecting slot (5) is a rectangular through slot extending along the width of the mold. It is located near the bottom of the main mold cavity and the thin-walled auxiliary mold cavity. The cross-sectional area of ​​the connecting slot (5) is smaller than the cross-sectional area of ​​the main mold cavity and the thin-walled auxiliary mold cavity, so that the bottom space of the two cavity areas is connected to each other.

4. The irregular cross-section thermal insulation block partition vibration molding device according to claim 1, characterized in that, The main mold cavity bottom plate (3) and the thin-walled auxiliary mold cavity bottom plate (4) are respectively connected to the corresponding positioning holes at the bottom of the mold frame (2) by positioning pins (6). The positioning pins (6) constrain the displacement of the main mold cavity bottom plate (3) and the thin-walled auxiliary mold cavity bottom plate (4) along the conveying direction and the mold width direction during vibration. The main mold cavity bottom plate (3) and the thin-walled auxiliary mold cavity bottom plate (4) bear pressure on the positioning step surface (7) at the bottom of the mold frame (2) in the vertical direction. After molding, the main mold cavity bottom plate (3) and the thin-walled auxiliary mold cavity bottom plate (4) together with the blank are separated from the mold frame (2) in the vertical direction.

5. The irregular cross-section thermal insulation block partition vibration molding device according to claim 1, characterized in that, The first eccentric vibrator includes a first vibration motor body (8) and a first eccentric block and output shaft (9). The first vibration motor body (8) is fixedly connected to the lower surface of the main mold cavity bottom plate (3) by bolts. The output shaft axis of the first eccentric block and output shaft (9) extends along the width direction of the mold. The second eccentric vibrator includes a second vibration motor body (10) and a second eccentric block and output shaft (11). The second vibration motor body (10) is fixedly connected to the lower surface of the thin-walled auxiliary mold cavity bottom plate (4) by bolts. The output shaft axis of the second eccentric block and output shaft (11) extends along the width direction of the mold. The main component of the centrifugal excitation force generated by the eccentric blocks in the first eccentric block and output shaft (9) and the second eccentric block and output shaft (11) when they rotate with their respective output shafts is located in the plane formed by the transmission direction and the vertical direction.

6. The irregular cross-section thermal insulation block partition vibration molding device according to claim 5, characterized in that, The operating frequency of the second eccentric vibrator is higher than that of the first eccentric vibrator, and the amplitude of the second eccentric vibrator is greater than that of the first eccentric vibrator. The first eccentric vibrator and the second eccentric vibrator are moved out of the pressing station together with their respective main mold cavity base plate (3) and thin-walled auxiliary mold cavity base plate (4). After being separated from the main mold cavity base plate (3) and thin-walled auxiliary mold cavity base plate (4) in the curing area, they are recycled back to the pressing station.

7. The irregular cross-section thermal insulation block partition vibration molding device according to claim 1, characterized in that, A displacement sensor (21) is embedded in the side wall of the thin-walled auxiliary mold cavity. The probe of the displacement sensor (21) points vertically to the position of the slurry surface inside the cavity and collects the amount of slurry surface drop in the thin-walled auxiliary mold cavity in real time. The signal output terminal of the displacement sensor (21) is electrically connected to the independent drive controller corresponding to the second eccentric vibrator. When the amount of slurry surface drop reaches the preset vibration and settling threshold, the independent drive controller outputs a stop command to stop the second eccentric vibrator, and then the first eccentric vibrator stops.

8. The irregular cross-section thermal insulation block partition vibration molding device according to claim 1, characterized in that, The pressing assembly also includes a guide component, which includes a guide post (18) fixedly installed on the frame (1) and extending in the vertical direction, and a guide sleeve (19) fixedly installed on the contouring head (14). The guide sleeve (19) is sleeved on the outer periphery of the guide post (18) and forms a sliding fit with the outer wall surface of the guide post (18). When the contouring head (14) moves with the piston rod (13), the guide sleeve (19) slides along the axial direction of the guide post (18). There are four guide posts (18), which are distributed at the four corners of the contouring head (14), and each guide post (18) is fitted with a guide sleeve (19).

9. The irregular cross-section thermal insulation block partition vibration molding device according to claim 1, characterized in that, The piston rod (13) of the gas-liquid booster cylinder is provided with a flange (20) at its extended end, and the top surface of the contour press head (14) is provided with a flange mating surface. The piston rod (13) and the contour press head (14) are fixedly connected by bolts through the flange (20). A rounded transition surface (17) is provided at the step transition between the first pressing surface (15) and the second pressing surface (16).

10. The partitioned vibration molding device for irregular cross-section thermal insulation blocks according to claim 1, characterized in that, It also includes a conveying component and a metering pump (23). The conveying component is fixedly installed on the frame (1) and arranged on the downstream side of the pressing station along the conveying direction. The conveying component includes multiple rollers (22) arranged in sequence along the conveying direction. The two ends of the rollers (22) are respectively supported on the side frame of the frame (1) and rotate freely around their own axis. The main mold cavity bottom plate (3) and the thin-walled auxiliary mold cavity bottom plate (4) together with the blank are placed on the surface of the rollers (22) and move along the conveying direction. The metering pump (23) is fixedly installed on the frame (1). The inlet of the metering pump (23) is connected to the storage device through a pipeline. The outlet of the metering pump (23) is connected to the injection port on the top surface of the mold frame (2) through a pipeline.

Images