Double-sucker four-station demoulding machine for calcium silicate board

By designing a calcium silicate board double-suction cup four-station demolding machine, the precise positioning of the mold carriage is achieved by using guide rails and motor drive, which solves the problem of low demolding efficiency of calcium silicate boards in the existing technology and realizes the stability and high efficiency of multi-station synchronous demolding.

CN224130115UActive Publication Date: 2026-04-17SHIJIAZHUANG HADI CALCIUM SILICATE BOARD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIJIAZHUANG HADI CALCIUM SILICATE BOARD CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing calcium silicate board demolding machines require frequent mold position adjustments when processing multiple calcium silicate boards, resulting in low efficiency and a high likelihood of demolding failure.

Method used

A calcium silicate board double suction cup four-station demolding machine was designed. It adopts a guide rail, positioning plate, lifting plate and clamping plate structure. The mold carriage is accurately positioned by universal wheel guidance and motor drive, and multi-station synchronous demolding is achieved by pneumatic cylinder and suction cup equipment.

Benefits of technology

This improved the demolding efficiency of calcium silicate boards, reduced manual adjustment errors, and ensured the success rate and stability of demolding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of calcium silicate boards, and one embodiment of the utility model provides a calcium silicate board double-suction-cup four-station demolding machine which comprises a bottom plate, and a guide rail is fixedly installed on the front side of the top of the bottom plate. The universal wheels move along the outer surfaces of the guide rails, so that the front-back position of the mold trolley is limited, the universal wheels stop moving when making contact with a baffle, at the moment, two positioning plates are located over a lifting plate, then an operator starts a telescopic rod, the lifting plate ascends, and a fixing motor is started, so that the mold trolley is fixed. The rotating shaft drives the rotating rod to rotate, the hinge rod pushes the two clamping plates to move oppositely, the clamping plates push the two positioning plates to move oppositely, and therefore the positioning plates make contact with the interior of the lifting plate, and through the technical scheme, the technical problem that calibration is inconvenient in the prior art is solved.
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Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of calcium silicate board technology, and more specifically, to a calcium silicate board double-suction cup four-station demolding machine. Background Technology

[0002] Calcium silicate board is a new type of building material made from siliceous materials (such as quartz powder, diatomaceous earth, etc.), calcareous materials (such as lime, cement, etc.), reinforcing fibers and additives, through processes such as pulping, molding, and high-temperature and high-pressure saturated steam curing. It has many excellent properties, such as good fire resistance, belonging to non-combustible Class A materials, and can maintain structural stability in high-temperature environments, effectively preventing the spread of fire.

[0003] During the production and processing of calcium silicate boards, a demolding machine is needed to demold the formed calcium silicate boards from the mold. Existing demolding machines can only demold one calcium silicate board at a time using the suction cup device. When demolding two calcium silicate boards, a double suction cup device is required to demold both boards simultaneously. Since the positions of the double suction cups are fixed, operators need to frequently adjust the position of the mold carriage containing the mold to match the positions of the double suction cups. This is not only inefficient but also prone to demolding failure due to errors. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a calcium silicate board double suction cup four-station demolding machine, which solves the technical problem of inconvenient calibration in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a calcium silicate board double-suction cup four-station demolding machine, including a base plate. A guide rail is fixedly installed on the front side of the top of the base plate. A baffle is fixedly connected to the right end of the guide rail. The bottom of the baffle is fixedly connected to the top of the base plate. A caster wheel is movably connected to the top of the caster wheel. A mold cart is movably connected to the top of the caster wheel. The outer surface of the guide rail is movably connected to the outer surface of the caster wheel. There are two mold carts. A positioning plate is fixedly connected to the bottom of each of the two mold carts. A [missing information - likely a typo, should be "fixed"]. A telescopic rod is provided, with a lifting plate fixedly connected to its top. A fixed motor is fixedly connected to the bottom of the lifting plate. A rotating shaft is fixedly connected to the other end of the output shaft of the fixed motor. The top end of the rotating shaft passes through the lifting plate and extends above it, where a rotating rod is fixedly sleeved. Both ends of the rotating rod are hinged to hinge rods. A clamping plate is hinged to the other end of the hinge rod. The inner surface of the clamping plate is movably sleeved with the outer surface of the lifting plate. The outer surface of the clamping plate is movably connected with the outer surface of a positioning plate. The outer surface of the positioning plate is movably connected with the inner surface of the lifting plate.

[0006] As a preferred embodiment of this utility model, a support frame is fixedly installed on the top of the base plate, a drive motor is fixedly installed on the top of the front of the support frame, and a threaded rod is fixedly connected to the other end of the output shaft of the drive motor. The outer surface of the threaded rod is movably sleeved with the inner wall of the support frame.

[0007] As a preferred embodiment of this utility model, a movable plate is threaded onto the outer surface of the threaded rod, and the top of the movable plate is movably connected to the top of the inner surface of the support frame.

[0008] As a preferred technical solution of this utility model, pneumatic cylinders are fixedly connected to the left and right sides of the top of the movable plate. The bottom end of the pneumatic cylinder penetrates the movable plate and extends to the bottom of the movable plate and is movably sleeved with the inner wall of the movable plate. The bottom of the pneumatic cylinder is fixedly connected to the suction cup device body.

[0009] As a preferred embodiment of this utility model, a fixing box is fixedly installed on the rear side of the top of the base plate, and a placement plate is movably connected to the top of the fixing box. There are two placement plates, and the two placement plates are of the same size.

[0010] As a preferred embodiment of this utility model, a vertical plate is fixedly connected to the bottom of the placement plate, and a groove is opened inside the bottom end of the vertical plate.

[0011] As a preferred technical solution of this utility model, a mounting plate located inside the fixing box is fixedly installed on the top of the base plate, a power motor is fixedly installed on the front of the mounting plate, a round shaft is fixedly connected to the other end of the output shaft of the power motor, and a first round plate is fixedly sleeved on the outer surface of the round shaft.

[0012] As a preferred embodiment of this utility model, a connecting rod is fixedly sleeved inside the bottom end of the first circular plate, and the outer surface of the connecting rod is movably sleeved with the inner surface of the groove.

[0013] As a preferred embodiment of this utility model, a second circular plate is fixedly sleeved on the rear side of the outer surface of the connecting rod, and a fixed shaft is movably sleeved inside the second circular plate. The outer surface of the fixed shaft is fixedly sleeved with the inner wall of the mounting plate.

[0014] As a preferred embodiment of this utility model, limit rods are fixedly installed at the four corners of the bottom of the placement plate, and the outer surface of the limit rods is movably sleeved with a limit frame, and the outer surface of the limit frame is fixedly connected to the inner surface of the fixing box.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] 1. In this disclosure, by setting guide rails, positioning plates, lifting plates, and clamping plates, the operator pushes two mold carts, causing the casters to move along the outer surface of the guide rails, thereby restricting the front and rear positions of the mold carts. When the casters contact the baffle, they will stop moving. At this time, the two positioning plates will be directly above the lifting plate. Then, the operator activates the telescopic rod, causing the lifting plate to rise. By activating the fixed motor, the rotating shaft drives the rotating rod to rotate, causing the hinge rod to push the two clamping plates to move in opposite directions. This causes the clamping plates to push the two positioning plates to move in opposite directions, thereby causing the positioning plates to contact the interior of the lifting plate. The clamping plates then press and fix the positioning plates, thereby fixing the left and right positions of the two mold carts, thus achieving the purpose of calibrating the mold carts.

[0017] 2. In this disclosure, by setting up a placement plate, a vertical plate, a circular shaft, and a connecting rod, when the calcium silicate board is placed on top of the placement plate after demolding, since there are many calcium silicate boards on the top of the mold carriage at the beginning, the power motor can be started to make the circular shaft drive the first circular plate to rotate, thereby causing the connecting rod to squeeze and push the inner surface of the groove, which in turn drives the vertical plate and the placement plate to rise, so that the placement plate can rise to the same height as the calcium silicate board on the top of the mold carriage, thereby reducing the upward and downward movement stroke of the suction cup device body, and thus improving the demolding efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 A schematic diagram of the mold vehicle in the embodiment;

[0021] Figure 3 for Figure 2 A schematic diagram of the positioning plate in the embodiment;

[0022] Figure 4 for Figure 1 A schematic diagram of the side structure of the support frame in the embodiment;

[0023] Figure 5 for Figure 4 A schematic diagram of the structure of the side of the fixing box in the embodiment;

[0024] Figure 6 for Figure 5 A cross-sectional view of the fixing box in the embodiment;

[0025] Figure 7 for Figure 5 A cross-sectional view of the top of the fixed box in the embodiment.

[0026] In the diagram: 1. Base plate; 2. Guide rail; 3. Baffle; 4. Casters; 5. Mold cart; 6. Positioning plate; 7. Telescopic rod; 8. Lifting plate; 9. Fixed motor; 10. Rotating shaft; 11. Rotating rod; 12. Hinge rod; 13. Clamping plate; 14. Drive motor; 15. Threaded rod; 16. Moving plate; 17. Pneumatic cylinder; 18. Suction cup device body; 19. Fixed box; 20. Placement plate; 21. Vertical plate; 22. Groove; 23. Mounting plate; 24. Power motor; 25. Round shaft; 26. First round plate; 27. Connecting rod; 28. Second round plate; 29. ​​Fixed shaft; 30. Limiting rod; 31. Limiting frame; 32. Support frame. Detailed Implementation

[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1 to 7 The diagram illustrates a calcium silicate board double-suction cup four-station demolding machine according to an embodiment of this disclosure. It includes a base plate 1, a guide rail 2 fixedly mounted on the front side of the top of the base plate 1, a baffle 3 fixedly connected to the right end of the guide rail 2, the bottom of the baffle 3 fixedly connected to the top of the base plate 1, a caster wheel 4 movably connected to the top of the caster wheel 4, and a mold cart 5 movably connected to the top of the caster wheel 4. The outer surface of the guide rail 2 is movably connected to the outer surface of the caster wheel 4. There are two mold carts 5, each with a positioning plate 6 fixedly connected to its bottom. A telescopic rod 7 is fixedly mounted on the top of the base plate 1. A lifting plate 8 is fixedly connected to the top of 7, a fixed motor 9 is fixedly connected to the bottom of the lifting plate 8, a rotating shaft 10 is fixedly connected to the other end of the output shaft of the fixed motor 9, the top end of the rotating shaft 10 passes through the lifting plate 8 and extends to the top of the lifting plate 8 and is fixedly sleeved with a rotating rod 11, both the left and right ends of the rotating rod 11 are hinged with hinge rods 12, the other end of the hinge rod 12 is hinged with a clamping plate 13, the inner surface of the clamping plate 13 is movably sleeved with the outer surface of the lifting plate 8, the outer surface of the clamping plate 13 is movably connected with the outer surface of the positioning plate 6, and the outer surface of the positioning plate 6 is movably connected with the inner surface of the lifting plate 8.

[0034] The operator pushes two mold carts 5 containing calcium silicate boards, causing the casters 4 to move to the right under the limiting action of the guide rail 2 until they contact the outer surface of the baffle 3 and stop, thus limiting the front and rear positions of the mold carts 5. At this time, by activating the telescopic rod 7, the telescopic rod 7 pushes the lifting plate 8 to rise, so that the two positioning plates 6 can be located inside the lifting plate 8. Then, by activating the fixed motor 9, the rotating shaft 10 drives the rotating rod 11 to rotate, causing the hinge rod 12 to push the clamping plate 13 to move, so that the two clamping plates 13 push the two positioning plates 6 to move until they contact the inner surface of the lifting plate 8, thereby fixing the left and right positions of the two mold carts 5.

[0035] In some examples, a support frame 32 is fixedly installed on the top of the base plate 1, and a drive motor 14 is fixedly installed on the top of the front of the support frame 32. The other end of the output shaft of the drive motor 14 is fixedly connected to a threaded rod 15, and the outer surface of the threaded rod 15 is movably sleeved with the inner wall of the support frame 32.

[0036] The operator can start the drive motor 14 to make the threaded rod 15 rotate.

[0037] In some examples, the outer surface of the threaded rod 15 is threaded with a movable plate 16, the top of which is movably connected to the top of the inner surface of the support frame 32.

[0038] The operator starts the drive motor 14, which causes the threaded rod 15 to rotate, thereby driving the moving plate 16 to move back and forth.

[0039] In some examples, pneumatic cylinders 17 are fixedly connected to the left and right sides of the top of the movable plate 16. The bottom end of the pneumatic cylinder 17 passes through the movable plate 16 and extends to the bottom of the movable plate 16 and is movably sleeved with the inner wall of the movable plate 16. The bottom of the pneumatic cylinder 17 is fixedly connected to the suction cup device body 18.

[0040] There are two suction cup device bodies 18. When the moving plate 16 moves above the mold carriage 5, the pneumatic cylinder 17 is activated, causing the pneumatic cylinder 17 to drive the suction cup device body 18 to descend. Then, by activating the suction cup device body 18, the two suction cup device bodies 18 can simultaneously adsorb the calcium silicate plates on the top of the two mold carriages 5.

[0041] In some examples, a fixing box 19 is fixedly installed on the rear side of the top of the base plate 1, and a placement plate 20 is movably connected to the top of the fixing box 19. There are two placement plates 20, and the two placement plates 20 are the same size.

[0042] There are two placement plates 20, which can cooperate with two mold cars 5 to form four stations for demolding at the same time, thus improving the demolding efficiency of calcium silicate board.

[0043] In some examples, a vertical plate 21 is fixedly connected to the bottom of the placement plate 20, and a slot 22 is opened inside the bottom end of the vertical plate 21.

[0044] When the vertical plate 21 moves upward, it will drive the placement plate 20 to rise, so that the top of the placement plate 20 can rise to the same position as the top layer of the calcium silicate board on the top of the mold carriage 5, thus making it convenient for the suction cup device body 18 to place the demolded calcium silicate board on the top of the placement plate 20.

[0045] In some examples, a mounting plate 23 located inside a fixing box 19 is fixedly installed on the top of the base plate 1. A power motor 24 is fixedly installed on the front of the mounting plate 23. A round shaft 25 is fixedly connected to the other end of the output shaft of the power motor 24. A first round plate 26 is fixedly sleeved on the outer surface of the round shaft 25.

[0046] The operator can start the power motor 24 to make the circular shaft 25 drive the first circular plate 26 to rotate.

[0047] In some examples, a connecting rod 27 is fixedly sleeved inside the bottom end of the first circular plate 26, and the outer surface of the connecting rod 27 is movably sleeved with the inner surface of the slot 22.

[0048] When the first circular plate 26 rotates, it will drive the connecting rod 27 to rotate around the circular shaft 25, thereby causing the connecting rod 27 to squeeze and push the inner surface of the groove 22, driving the vertical plate 21 and the placement plate 20 to move upward.

[0049] In some examples, a second circular plate 28 is fixedly sleeved on the rear side of the outer surface of the connecting rod 27, and a fixed shaft 29 is movably sleeved inside the second circular plate 28. The outer surface of the fixed shaft 29 is fixedly sleeved with the inner wall of the mounting plate 23.

[0050] When the connecting rod 27 rotates around the circular shaft 25, it will drive the second circular plate 28 to rotate, thereby making the vertical plate 21 rise more stably.

[0051] In some examples, limit rods 30 are fixedly installed at the four corners of the bottom of the placement plate 20. The outer surface of the limit rods 30 is movably sleeved with a limit frame 31, and the outer surface of the limit frame 31 is fixedly connected to the inner surface of the fixing box 19.

[0052] When the placement plate 20 rises, it will cause the limiting rod 30 to rise along the inner surface of the limiting frame 31, thereby making the rise of the placement plate 20 more stable.

[0053] Working principle and usage process of this utility model:

[0054] When using the equipment, the operator first pushes the two mold carts 5 containing calcium silicate boards, causing the casters 4 to move to the right under the limiting action of the guide rail 2. This limits the front and rear positions of the mold carts 5 until the casters 4 contact the outer surface of the baffle 3 and stop. At this time, the two positioning plates 6 will move directly above the lifting plate 8. Then, by activating the telescopic rod 7, the telescopic rod 7 pushes the lifting plate 8 upward. Then, by activating the fixed motor 9, the rotating shaft 10 drives the rotating rod 11 to rotate, causing the hinge rod 12 to push the clamping plate 13 to move. The two clamping plates 13 push the two positioning plates 6 to move until they contact the inner surface of the lifting plate 8, thereby fixing the left and right positions of the two mold carts 5 and matching the positions of the two suction cup equipment bodies 18.

[0055] Then, by starting the power motor 24, the circular shaft 25 drives the first circular plate 26 to rotate, thereby causing the connecting rod 27 to press against the inner surface of the pushing slot 22, which in turn drives the vertical plate 21 and the placement plate 20 to rise. This allows the placement plate 20 to rise to the same height as the top calcium silicate board on the mold carriage 5, thereby reducing the upward and downward stroke of the suction cup device body 18 and improving the demolding efficiency. Furthermore, as the calcium silicate board on the top of the placement plate 20 increases, the operator can start the power motor 24 to gradually lower the placement plate 20, thereby ensuring that the top calcium silicate board on the placement plate 20 is at the same height as the top calcium silicate board on the mold carriage 5. The top layer of calcium silicate boards is at the same height. At this time, by starting the drive motor 14, the threaded rod 15 drives the moving plate 16 to move forward. When the suction cup device body 18 moves directly above the mold carriage 5, the pneumatic cylinder 17 is started to lower the suction cup device body 18. Then, the suction cup device body 18 is started to pick up the calcium silicate board. The pneumatic cylinder 17 is started again to lift the calcium silicate board, thereby completing the demolding of the calcium silicate board. At this time, the drive motor 14, the pneumatic cylinder 17 and the suction cup device body 18 can be started again to place the demolded calcium silicate board on the top of the placement plate 20.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A calcium silicate board double-suction cup four-station demolding machine, comprising a base plate (1), characterized in that: A guide rail (2) is fixedly installed on the front side of the top of the base plate (1). A baffle (3) is fixedly connected to the right end of the guide rail (2). The bottom of the baffle (3) is fixedly connected to the top of the base plate (1). A caster wheel (4) is movably connected to the top of the caster wheel (4). A mold cart (5) is movably connected to the top of the caster wheel (4). The outer surface of the guide rail (2) is movably connected to the outer surface of the caster wheel (4). There are two mold carts (5). A positioning plate (6) is fixedly connected to the bottom of each mold cart (5). A telescopic rod (7) is fixedly installed on the top of the base plate (1). A lifting plate (8) is fixedly connected to the top of the telescopic rod (7). A fixed motor (9) is fixedly connected to the bottom of the lifting plate (8). A rotating shaft (10) is fixedly connected to the other end of the output shaft of the fixed motor (9). The top end of the rotating shaft (10) passes through the lifting plate (8) and extends to the top of the lifting plate (8) and is fixedly sleeved with a rotating rod (11). Both the left and right ends of the rotating rod (11) are hinged with hinge rods (12). The other end of the hinge rod (12) is hinged with a clamping plate (13). The inner surface of the clamping plate (13) is movably sleeved with the outer surface of the lifting plate (8). The outer surface of the clamping plate (13) is movably connected with the outer surface of the positioning plate (6). The outer surface of the positioning plate (6) is movably connected with the inner surface of the lifting plate (8).

2. The double-suction four-station demoulding machine for calcium silicate board according to claim 1, characterized in that: A support frame (32) is fixedly installed on the top of the base plate (1). A drive motor (14) is fixedly installed on the top of the front side of the support frame (32). A threaded rod (15) is fixedly connected to the other end of the output shaft of the drive motor (14). The outer surface of the threaded rod (15) is movably sleeved with the inner wall of the support frame (32).

3. The double-suction four-station demoulding machine for calcium silicate boards according to claim 2, characterized in that: The outer surface of the threaded rod (15) is threaded with a movable plate (16), and the top of the movable plate (16) is movably connected to the top of the inner surface of the support frame (32).

4. The double-suction four-station demoulding machine for calcium silicate boards according to claim 3, characterized in that: Pneumatic cylinders (17) are fixedly connected to the left and right sides of the top of the movable plate (16). The bottom end of the pneumatic cylinder (17) passes through the movable plate (16) and extends to the bottom of the movable plate (16) and is movably sleeved with the inner wall of the movable plate (16). The bottom of the pneumatic cylinder (17) is fixedly connected to the suction cup device body (18).

5. A calcium silicate board double-suction cup four-station demolding machine according to claim 1, characterized in that: A fixing box (19) is fixedly installed on the rear side of the top of the base plate (1). A placement plate (20) is movably connected to the top of the fixing box (19). There are two placement plates (20), and the two placement plates (20) are the same size.

6. The double-suction four-station demoulding machine for calcium silicate boards according to claim 5, characterized in that: The bottom of the placement plate (20) is fixedly connected to a vertical plate (21), and a groove (22) is opened inside the bottom end of the vertical plate (21).

7. The double-suction four-station demoulding machine for calcium silicate boards according to claim 1, characterized in that: The top of the base plate (1) is fixedly installed with an installation plate (23) located inside the fixed box (19). The front of the installation plate (23) is fixedly installed with a power motor (24). The other end of the output shaft of the power motor (24) is fixedly connected with a round shaft (25). The outer surface of the round shaft (25) is fixedly sleeved with a first round plate (26).

8. The double-suction four-station demoulding machine for calcium silicate boards according to claim 7, characterized in that: A connecting rod (27) is fixedly sleeved inside the bottom end of the first circular plate (26), and the outer surface of the connecting rod (27) is movably sleeved with the inner surface of the slot (22).

9. The double-suction four-station demoulding machine for calcium silicate boards according to claim 8, characterized in that: The second circular plate (28) is fixedly sleeved on the rear side of the outer surface of the connecting rod (27), and a fixed shaft (29) is movably sleeved inside the second circular plate (28). The outer surface of the fixed shaft (29) is fixedly sleeved with the inner wall of the mounting plate (23).

10. The double-suction four-station demoulding machine for calcium silicate boards according to claim 5, characterized in that: Limiting rods (30) are fixedly installed at the four corners of the bottom of the placement plate (20). The outer surface of the limiting rod (30) is movably sleeved with a limiting frame (31). The outer surface of the limiting frame (31) is fixedly connected to the inner surface of the fixing box (19).