Full-automatic forming equipment and production method for high-pressure vermiculite plate

Abstract

The invention relates to the technical field of vermiculite board production, in particular to full-automatic high-pressure vermiculite board forming equipment and a production method. The full-automatic high-pressure vermiculite board forming equipment comprises a hydraulic machine provided with a workbench, a middle lifting frame and a lifting seat, and further comprises a mold, the lower die base is installed on the upper table top of the workbench, the die frame is installed on the inner side of the middle lifting frame, and the upper die base is installed on the bottom face of the lifting base. The feeding and discharging device is provided with a supporting table with supporting legs, a feeding box with openings in the upper portion and the lower portion, a pushing frame and a driving mechanism, and the feeding box is located on the upper table top of the supporting table; the driving mechanism comprises two groups of elastic telescopic push rods correspondingly connected with the feeding box and the pushing frame respectively, and linear driving equipment for synchronously applying force to the two groups of elastic telescopic push rods; by means of the feeding and discharging device, full-automatic operation from raw material filling to finished product taking is achieved, the requirement for manual intervention is greatly reduced, the production period is shortened, and the operation efficiency of the whole production line is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vermiculite board production, and in particular to a high-pressure and strong vermiculite board fully automatic forming equipment and a production method. Background Art

[0002] As a widely used building material, high-pressure vermiculite board is favored by the market for its excellent heat insulation, sound insulation and good mechanical strength. The traditional production of high-pressure vermiculite board usually relies on high-pressure four-beam four-column or frame hydraulic presses for pressing and molding. In actual applications, this type of equipment often needs to reach a pressure output of 630 tons to meet the production needs of vermiculite board. At present, there are several major problems in the production of vermiculite board on the market: 1. Due to the high cost of mold opening, in order to meet the vermiculite boards of different thicknesses and densities, the mold cavity depth is large. After most of the raw materials are filled into the mold cavity, manual intervention is required to spread and flatten them. This not only has low work efficiency, but also cannot well guarantee the uniformity of the raw material spreading, resulting in the inability to guarantee the uniformity of the finished product density; 2. The existing production process is through one-time pressing and molding, which will result in inconsistent density between the upper and lower parts of the finished product. Although it can meet customer needs, it is easy to be damaged during use.

[0003] In response to the above-mentioned deficiencies and technical challenges, we proposed a fully automatic forming equipment and production method for high-pressure vermiculite board. Summary of the invention

[0004] In order to overcome the deficiencies in the background technology, the present invention discloses a high-pressure and strong vermiculite board fully automatic forming equipment and a production method.

[0005] To achieve the above object, the present invention adopts the following technical solution: A fully automatic forming device for high-pressure strong vermiculite board, comprising a hydraulic press having a workbench, an intermediate lifting frame and a lifting seat, and also comprising: A mold, comprising a lower mold base mounted on the table top of the workbench, a mold frame mounted on the inner side of the intermediate lifting frame, and an upper mold base mounted on the bottom surface of the lifting base; A loading and unloading device, which comprises a support platform with supporting legs, a feeding box with upper and lower openings open, a pushing rack and a driving mechanism, wherein the feeding box is located on the top of the support platform; The driving mechanism includes two groups of elastic telescopic push rods respectively connected to the feeding box and the pushing rack, and a linear driving device that synchronously applies force to the two groups of elastic telescopic push rods, which is used to drive the feeding box or the pushing rack to move through the elastic telescopic push rods, so that the pushing rack abuts against the middle lifting frame and the feeding box completes the raw material adding operation, or the feeding box abuts against the middle lifting frame and the pushing rack completes the formed vermiculite board unloading operation, and then the feeding box and the pushing rack are reset.

[0006] Furthermore, the linear drive device driving part is provided with a driving plate, and a group of elastic telescopic push rods are respectively provided between the driving plate and the feeding box and the pushing rack.

[0007] Furthermore, the driving plate is a T-shaped plate, and a group of elastic telescopic push rods corresponding to the feeding box has two, which are respectively connected to the two ends of the driving plate wing.

[0008] Furthermore, the support platform is provided with a guide column which is parallel to the elastic telescopic push rod and slides through the driving plate.

[0009] Furthermore, the mold frame includes a base frame and a replaceable frame detachably connected to the top of the base frame, and the height of the inner cavity after the mold frame and the lower mold base are matched is changed by replacing the replaceable frame, thereby meeting the production requirements of vermiculite boards of different thicknesses and / or densities; The top surface of the intermediate lifting frame is detachably connected with a heightening plate which is flush with the top surface of the replaceable frame.

[0010] Furthermore, the belly of the supporting legs and the driving plate both adopt a length-adjustable structure to adapt to mold frames of different heights.

[0011] A production method of a high-pressure strong vermiculite board fully automatic forming device is also provided, comprising the following steps: Step 1: Start the hydraulic press and adjust the position of the middle lifting frame so that the mold frame and the lower mold base are in a matching state; Step 2: Use the driving mechanism to drive the feeding box to move above the mold frame and feed the raw material into the inner cavity after the mold frame and the lower mold base are matched; Step 3: Reset the feeding box and scrape the raw material flat through the driving mechanism so that its filling height is consistent with the inner cavity depth after the mold frame and the lower mold base are matched; Step 4: Use the hydraulic press to lower the upper die base to press the raw material; Step 5: Repeat steps 2 to 4 several times to achieve the desired compression ratio; Step 7: Complete demoulding operation by lifting the middle lifting frame; Step 8: Use the driving mechanism to drive the push rack to push out the formed vermiculite board.

[0012] Further, in step five, steps two to four are repeated twice.

[0013] Furthermore, the mold frame and the lower mold base cooperate to form a cavity with a depth of ; Where K is the ratio of raw material density to finished vermiculite board density, D is the thickness of finished vermiculite board, The compression ratio of the first pressing is 30%~40%K, The compression ratio of the second pressing is 80%~90%K.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Improve production efficiency: Through the loading and unloading device, fully automated operation from raw material filling to finished product removal is realized, which greatly reduces the need for manual intervention. This not only shortens the production cycle, but also improves the operating efficiency of the overall production line; 2. Improve product quality and consistency: Multiple pressing is adopted, and the loading and unloading devices are used for braking loading and laying each time, which ensures the stability of product quality and meets the high-standard market requirements; 3. Enhance the flexibility and adaptability of production: The detachable mold frame design allows different replaceable frames to be replaced according to different product specifications, so as to flexibly adjust the production parameters to meet the production needs of vermiculite boards of different thicknesses and densities. At the same time, the adjustable length structure of the support legs and the driving plate also enhances the equipment's adaptability to mold frames of different heights, improving the versatility and flexibility of the equipment. 4. The setting of the spring telescopic rod allows loading and unloading to share the same power device, effectively controlling the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the present invention from another perspective; Figure 3 It is a left view of the present invention in a state where raw materials are added; Figure 4 It is a left view of the present invention in the blanking state; Figure 5 A schematic diagram of another structure of the present invention; Figure 6 A schematic diagram of another structure of the mold frame in the present invention; Figure 7 It is a schematic diagram of another structure of the driving plate in the present invention; Figure 8 It is a schematic diagram of the structure of the elastic telescopic push rod in the present invention; Fig. 9 It is a comparison chart of the test data of the embodiment of the present invention and the comparative example.

[0016] In the figure: 1. hydraulic press; 11. workbench; 12. intermediate lifting frame; 13. lifting seat; 2. mold; 21. lower mold seat; 22. mold frame; 221. base frame; 222. interchangeable frame; 23. upper mold seat; 3. loading and unloading device; 31. support table; 32. support leg; 33. feeding box; 34. pushing rack; 35. driving mechanism; 351. linear driving device; 352. driving plate; 353. elastic telescopic push rod; 354. guide column; 4. heightening plate. DETAILED DESCRIPTION

[0017] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application and are for the convenience of describing the present invention; it should be understood that if there are terms such as "end", "side", "end portion", "lateral", "lateral", "transverse", "longitudinal", etc. indicating directions or positional relationships, they only correspond to the length and width of the corresponding components, that is, the "end portion" indicates the head and tail areas in the length direction of the corresponding component, and the "side portion" indicates the head and tail areas in the width direction of the corresponding component; this is for the convenience of describing the present invention and is not to indicate or imply that the device or element referred to must have a specific direction.

[0018] Embodiment 1, in combination with the attached Figure 1-4 and 8, a high-pressure strong vermiculite board fully automatic forming equipment, comprising a hydraulic press 1, a mold 2 and a loading and unloading device 3; The hydraulic press 1 is a hydraulic press 1 capable of multi-stage pressurization in the prior art, which will not be described in detail here. It should be noted that the hydraulic press 1 has a workbench 11, an intermediate lifting frame 12 and a lifting seat 13.

[0019] The mold 2 includes a lower mold base 21 installed on the upper surface of the workbench 11, a mold frame 22 installed on the inner side of the intermediate lifting frame 12, and an upper mold base 23 installed on the bottom surface of the lifting base 13. The installation method and process of the mold 2 can adopt the existing technology, which will not be specifically limited or repeated here.

[0020] The loading and unloading device 3 includes a support platform 31 with supporting legs 32, a feed box 33 open at the top and bottom, a push rack 34 and a driving mechanism 35 for driving the feed box 33 and the push rack 34 to move. That is, the feed box 33 can be driven by the driving mechanism 35 to deliver the raw materials to the inner cavity after the lower mold base 21 and the mold frame 22 are matched. At the same time, the driving mechanism 35 can also drive the push rack 34 to push the formed vermiculite board away from the lower mold base 21.

[0021] As needed, a carrying device (not shown in the figure) can be provided in the direction in which the vermiculite board is pushed to carry the formed vermiculite board pushed away from the lower mold base 21, and a conveyor belt (not shown in the figure) can also be provided to transfer the formed vermiculite board pushed away from the lower mold base 21 to the next process.

[0022] Among them, the feed box 33 is located on the upper surface of the support table 31, and the height of the upper surface of the support table 31 is consistent with the height of the top surface of the intermediate lifting frame 12 after the mold frame 22 and the lower mold base 21 are matched, and there is only a micro gap between the support table 31 and the intermediate lifting frame 12; that is, the feed box 33 can be driven by the driving mechanism 35 to move back and forth between the upper surface of the support table 31 and the top surface of the intermediate lifting frame 12, and the raw materials inside the feed box 33 can be prevented from spilling from the gap between the two.

[0023] The height of the bottom surface of the pusher frame 34 is flush with the top surface of the lower die base 21 .

[0024] It should be noted that the lateral dimension of the inner cavity of the feed box 33 is not less than the lateral dimension of the inner cavity of the mold frame 22. Preferably, the inner cavity volume of the feed box 33 is larger than the inner cavity volume after the mold frame 22 and the lower mold base 21 are matched.

[0025] The driving mechanism 35 includes a linear driving device 351 disposed on the lower surface of the support table 31 and arranged in the longitudinal direction. The driving part of the linear driving device 351 is provided with a driving plate 352. The driving plate 352 is provided with a group of elastic telescopic push rods 353 at the positions corresponding to the feeding box 33 and the pushing rack 34, that is, the driving plate 352 can push or pull the feeding box 33 or the pushing rack 34 through each corresponding group of elastic telescopic push rods 353. In other words, one end of the elastic telescopic push rod 353 is connected to the driving plate 352, and the other end is connected to the feeding box 33 or the pushing rack 34.

[0026] As required, the linear drive device 351 may be a cylinder, a hydraulic cylinder or other device in the prior art, which will not be described again here.

[0027] It should be noted that: when the mold frame 22 and the lower mold base 21 are matched, the pusher frame 34 faces the middle lifting frame 12; when the hydraulic press 1 is in a material unloading posture, that is, when the pusher frame 34 pushes the formed vermiculite board downward, the feed box 33 faces the middle lifting frame 12.

[0028] In this embodiment, the production method of the fully automatic molding equipment includes the following steps: Step 1: Start the hydraulic press 1 and adjust the position of the middle lifting frame 12 so that the mold frame 22 and the lower mold base 21 are in a matching state; Step 2: The driving plate 352 is driven to move by the driving part of the linear driving device 351, and then the two sets of elastic telescopic push rods 353 are driven to move synchronously, and finally the feeding box 33 and the pushing rack 34 are driven to move; after moving a certain distance, the pushing rack 34 contacts the middle lifting frame 12 and stops moving, and its corresponding elastic telescopic push rod 353 begins to be compressed, and the feeding box 33 continues to move over the support platform 31 to the top surface of the middle lifting frame 12 until the front side wall of the feeding box 33 passes over the front side wall of the mold frame 22, and at the same time ensures that the raw materials in the feeding box 33 enter the inner cavity after the mold frame 22 and the lower mold base 21 are matched and filled; Step 3: The linear drive device 351 drives the driving part to move in the reverse direction, driving the feed box 33 and the push rack 34 to reset, and in the process of resetting the feed box 33, the raw material in the inner cavity after the mold frame 22 and the lower mold base 21 are matched is scraped flat to ensure that the height of the filled raw material is consistent with the inner cavity depth H after the mold frame 22 and the lower mold base 21 are matched; Step 4: The upper die seat 23 is driven down by the lowering of the lifting seat 13 to press the current height of the raw material to hi (i=1, 2...), and then the lifting seat 13 is reset; Step 5: Repeat steps 2 to 4 several times; Step 6: The demoulding operation is completed by raising the intermediate lifting frame 12; Step seven: through the linear drive device 351, the linear drive device 351 drives the drive plate 352 to move, and then synchronously drives the two sets of elastic telescopic push rods 353 to move, and finally drives the feeding box 33 and the pushing rack 34 to move; after moving a certain distance, the feeding box 33 contacts the middle lifting frame 12 and no longer moves, and its corresponding elastic telescopic push rod 353 begins to be compressed, and the pushing rack 34 continues to move to push the formed vermiculite board to the loading equipment or conveyor belt.

[0029] In the example, since the density and thickness D of the vermiculite board are given according to customer requirements and the raw material density is directly measured, the compression ratio K can be determined according to the density of the vermiculite board and the raw material density, which will not be described in detail here.

[0030] According to the compression ratio , we can know the total amount of raw materials required for forming vermiculite board ; Among them, the amount of material filled for the first time is: ; Amount of second filling material: ; Amount of the third filling material: ; Where, H is the depth of the inner cavity after the mold frame and the lower mold base are matched, and A is the cross-sectional area of ​​the inner cavity after the mold frame and the lower mold base are matched; It can be seen that ; Conclusion .

[0031] In this embodiment, steps 2 to 4 are repeated twice, that is, steps 2 to 4 are performed three times respectively. That is, the formed vermiculite board is obtained by pressing three times.

[0032] Therefore, it can be seen that the height after the first pressing ; Height after the second pressing ; Height after the third pressing ; Finally, the inner cavity depth after the mold frame and the lower mold base are matched is obtained. .

[0033] The compression ratio of the first pressing is as required. =30%~40%K, compression ratio of the second pressing =80%~90%K, compression ratio of the third pressing =100%K.

[0034] Embodiment 2, combined with the attached Figure 5-7 , a high-pressure and strong vermiculite board fully automatic forming equipment, in order to meet the needs of different vermiculite board densities and thicknesses D through the same set of molds, the difference from the implementation of the first is: The mold frame 22 includes a base frame 221 and a replaceable frame 222 detachably connected to the top of the base frame 221; Furthermore, both the top of the base frame 221 and the bottom of the replaceable frame 222 are provided with an extension portion extending outward, for example, the two are detachably connected by connecting parts such as bolts; that is, according to the difference in density and thickness D of the vermiculite board, the depth of the inner cavity after the mold frame 22 and the lower mold base 21 are matched can be changed only by adding or replacing the replaceable frame 222, thereby being able to produce vermiculite boards with different vermiculite board densities and / or thicknesses D.

[0035] In this embodiment, in order to make the loading and unloading device 3 suitable for mold frames 22 of different heights, the belly of the support leg 32 and the driving plate 352 both adopt a length-adjustable structure; for example, it is achieved through structures such as basket bolts, strip assembly holes and bolt combinations, which will not be described in detail here.

[0036] It should be noted that: during use, when the top surface height of the interchangeable frame 222 is higher than the intermediate lifting frame 12, a heightening plate 4 is provided on the top of the intermediate lifting frame 12, and the upper surface of the heightening plate 4 is made flush with the top surface of the interchangeable frame 222, ensuring that the feeding box 33 can switch its position between the top surface of the interchangeable frame 222 and the upper surface of the support table 31, and the raw materials in its inner cavity will not be spilled.

[0037] As needed, the heightened plate 4 may also be provided with only the top of the intermediate lifting frame 12 corresponding to a position between the interchangeable frame 222 and the support table 31. It is only necessary to ensure that the feed box 33 switches its position between the top surface of the interchangeable frame 222 and the upper surface of the support table 31 without spilling the raw materials in its inner cavity.

[0038] In other embodiments, the support platform 31 also has a guide column 354 that slides through the drive plate 352, wherein the guide column 354 is consistent with the moving direction of the drive part of the linear drive device 351, that is, the drive plate 352 is supported and guided by the guide column 354 to prevent the elastic telescopic push rod 353 from being deformed due to large radial force, thereby affecting smooth extension and retraction.

[0039] Comparative experimental group, as shown in the instruction manual Fig. 9 shown.

[0040] It should be noted that the compression ratios of the three pressings in the experimental group are 35%K, 85%K and 100%K respectively.

[0041] It can be seen that the compressive strength of three-step pressing is increased by an average of 65%~71% compared with single-step pressing, indicating that step-by-step compression effectively enhances the structural density of the material; the thermal conductivity is reduced by 26%~32%, proving that the three-step pressing process significantly reduces internal porosity, improves thermal insulation efficiency, and greatly reduces density fluctuations, thereby improving the reliability and service life of the product and meeting the application requirements of high-standard building materials.

[0042] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A fully automatic high-pressure vermiculite board forming device, comprising a hydraulic press (1) having a workbench (11), an intermediate lifting frame (12) and a lifting seat (13), characterized in that: Also includes: A mold (2) comprising a lower mold base (21) mounted on the upper surface of the workbench (11), a mold frame (22) mounted on the inner side of the intermediate lifting frame (12), and an upper mold base (23) mounted on the bottom surface of the lifting base (13); A loading and unloading device (3) comprising a support platform (31) with support legs (32), a feeding box (33) open at the top and bottom, a pushing rack (34) and a driving mechanism (35), wherein the feeding box (33) is located on the upper surface of the support platform (31); The driving mechanism (35) comprises two groups of elastic telescopic push rods (353) respectively connected to the feeding box (33) and the pushing rack (34), and a linear driving device (351) for synchronously applying force to the two groups of elastic telescopic push rods (353), and is used to drive the feeding box (33) or the pushing rack (34) to move through the elastic telescopic push rods (353), so that the pushing rack (34) contacts the middle lifting frame (12) and the feeding box (33) completes the raw material adding operation, or the feeding box (33) contacts the middle lifting frame (12) and the pushing rack (34) completes the formed vermiculite board unloading operation, and then the feeding box (33) and the pushing rack (34) are reset.

2. The fully automatic high-pressure vermiculite board forming equipment according to claim 1 is characterized in that: The driving part of the linear drive device (351) is provided with a driving plate (352), and a group of elastic telescopic push rods (353) are respectively provided between the driving plate (352) and the feeding box (33) and the pushing frame (34).

3. The fully automatic high-pressure vermiculite board forming equipment according to claim 2 is characterized in that: The driving plate (352) is a T-shaped plate, and has two elastic telescopic push rods (353) corresponding to the feeding box (33), which are respectively connected to the two ends of the wing of the driving plate (352).

4. The fully automatic high-pressure vermiculite board forming equipment according to claim 2 is characterized in that: The support platform (31) is provided with a guide column (354) which is parallel to the elastic telescopic push rod (353) and slides through the drive plate (352).

5. The fully automatic high-pressure vermiculite board forming equipment according to claim 1 is characterized in that: The mold frame (22) comprises a base frame (221) and a replaceable frame (222) detachably connected to the top of the base frame (221); the height of the inner cavity after the mold frame (22) and the lower mold base (21) are matched is changed by replacing the replaceable frame (222), thereby meeting the production requirements of vermiculite boards of different thicknesses and / or densities; The top surface of the intermediate lifting frame (12) is detachably connected to a heightening plate (4) that is flush with the top surface of the replaceable frame (222).

6. The fully automatic high-pressure vermiculite board forming equipment according to claim 3 is characterized by: The belly portions of the support legs (32) and the driving plate (352) both have length-adjustable structures to accommodate mold frames (22) of different heights.

7. A method for producing a high-pressure vermiculite board fully automatic forming equipment according to any one of claims 1 to 6, characterized in that: The method for producing high-pressure-strength vermiculite board by the fully automatic forming equipment for producing high-pressure-strength vermiculite board comprises the following steps: Step 1: Start the hydraulic press (1) and adjust the position of the intermediate lifting frame (12) so that the mold frame (22) and the lower mold base (21) are in a mating state; Step 2: using the driving mechanism (35) to drive the feeding box (33) to move to the top of the mold frame (22) and feed the raw material into the inner cavity of the mold frame (22) and the lower mold base (21); Step 3: resetting the feed box (33) and flattening the raw material through the driving mechanism (35) so that the filling height is consistent with the inner cavity depth after the mold frame (22) and the lower mold base (21) are matched; Step 4: lowering the upper die base (23) through the hydraulic press (1) to press the raw material; Step 5: Repeat steps 2 to 4 several times to achieve the desired compression ratio; Step 7: Complete the demoulding operation by lifting the intermediate lifting frame (12); Step eight: The driving mechanism (35) drives the pushing frame (34) to push out the formed vermiculite board.

8. The production method according to claim 7, characterized in that: In step 5, repeat steps 2 to 4 twice.

9. The production method according to claim 8, characterized in that: The mold frame (22) and the lower mold base (21) cooperate to form a cavity with a depth of ; Where K is the ratio of raw material density to finished vermiculite board density, D is the thickness of finished vermiculite board, The compression ratio of the first pressing is 30%~40%K, The compression ratio of the second pressing is 80%~90%K.

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