Mould for producing cement products

Abstract

The invention relates to the technical field of cement cylinder production, and provides a mold for cement product production. The inner mold column is arranged in the outer mold cylinder, the outer mold cylinder and the inner mold column are coaxially arranged, a pouring space is formed between the outer mold cylinder and the inner mold column, the pouring space is used for pouring cement, the inner mold column comprises a plurality of first supporting pieces and a plurality of second supporting pieces, and gaps are reserved between the adjacent first supporting pieces; the second supporting pieces are arranged in the gaps between the adjacent first supporting pieces in a sliding mode, and after the second supporting pieces are unfolded, a cylindrical surface is defined by the outer walls of the second supporting pieces and the outer walls of the first supporting pieces; the supporting plate is arranged at the center of the top of the first supporting piece in a lifting mode, and the supporting plate abuts against the second supporting piece after being lifted. By means of the technical scheme, the problem that in the prior art, a pouring mold is not prone to demolding is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cement cylinder production, and in particular to a mould for producing cement products. Background Art

[0002] When making cement cylinders, a cylinder-shaped casting mold is usually used. The cylinder-shaped casting mold is a device used to make concrete pipes, cement pipes or other cylindrical cement products. The casting mold generally includes an outer mold and an inner mold. Cement is poured between the outer mold and the inner mold. After cooling, the cement cylinder is formed and then demoulding is performed.

[0003] However, the existing casting mold is not easy to demould after the cement cylinder is cooled. Since the diameter of the inner mold is fixed, the cement cylinder and the inner mold are often unable to be demoulded. Although a release agent is used during pouring, it is found that the effect is not good during production, and in severe cases, the entire cement cylinder may be broken and damaged. Summary of the invention

[0004] The invention provides a mold for producing cement products, which solves the problem that the casting mold in the related art is not easy to demould.

[0005] The technical solution of the present invention is as follows: A mold for producing cement products, comprising: Outer mold cylinder; An inner mold column, wherein the inner mold column is disposed in the outer mold barrel, and the outer mold barrel and the inner mold column are coaxially arranged, and a pouring space is formed between the outer mold barrel and the inner mold column, and the pouring space is used for pouring cement, and the inner mold column comprises: There are a plurality of first supporting members, with gaps being left between adjacent first supporting members; There are a plurality of second support members, each of which is slidably disposed in a gap between adjacent first support members, and when the second support members are unfolded, outer walls of the plurality of second support members and outer walls of the plurality of first support members form a cylindrical surface; The support plate is liftably arranged at the top center of the first support member, and the support plate abuts against the second support member after being lifted.

[0006] Preferably, a plurality of the first support members form a receiving space therein, and further include: A fixed cylinder, disposed in the accommodation space; A hydraulic rod is disposed in the fixed cylinder, and a movable end of the hydraulic rod extends out of the top of the fixed cylinder; A fixed plate, arranged on the movable end of the hydraulic rod; A plurality of connecting members, wherein the connecting members are hingedly arranged at intervals on the outer wall of the fixing tube, and a side of the connecting member away from the fixing tube is slidably arranged on the inner wall of the first supporting member or the inner wall of the second supporting member; A hinged rod, one end of which is hinged to the fixed plate, and the other end of which is hinged to the connecting member. The hydraulic rod is used to drive the connecting member to drive the first supporting member and the second supporting member to unfold or fold.

[0007] Preferably, a slide groove is provided on the inner wall of the first support member or the inner wall of the second support member, and the slide groove is arranged along the axial direction of the first support member, and the connecting member includes: plate body; A connecting rod, one end of which is hinged to the plate body, and the other end of which is hinged to the fixing cylinder; The arc-shaped plate is arranged on the side wall of the plate body, and a protrusion is provided on a side of the arc-shaped plate away from the plate body, and the protrusion is slidably arranged in the slide groove.

[0008] Preferably, the protrusion is T-shaped, and the cross section of the slide groove is T-shaped.

[0009] Preferably, it also includes: The pouring bottom plate is annular and is sleeved on the first support member. The side of the pouring bottom plate away from the first support member is detachably arranged on the inner wall of the outer mold barrel.

[0010] Preferably, the outer wall of the fixing cylinder has an extension portion, and further comprises: A bracket, disposed on the extension portion; A lifting rod is arranged on the bracket, and one end of the lifting rod away from the bracket is arranged on the support plate. The lifting rod is used to control the lifting of the support rod.

[0011] Preferably, an air flow channel is provided between the inner wall of the fixing cylinder and the inner wall of the hydraulic rod, and the air flow channel has an air inlet, including: An air inlet pipe is arranged through the bottom of the outer mold tube, the air inlet pipe is communicated with the air inlet, and the air inlet pipe is used to introduce air into the accommodating space.

[0012] Preferably, it also includes: A guide plate is arranged on the circumference of the bottom of the fixing plate, and the guide plate is arranged obliquely toward the inner wall of the first support member. The guide plate is used to guide the airflow in the airflow channel into the accommodating space.

[0013] Preferably, the outer mold cylinder comprises: Arc-shaped cylinder plates, a plurality of said arc-shaped cylinder plates surround a cylindrical cylinder body, and adjacent said arc-shaped cylinder plates are detachably connected.

[0014] Preferably, the outer mold cylinder further comprises: There are a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at intervals on a plurality of outer walls of the cylinder.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, the first support member and the second support member are assembled into an inner mold column in a predetermined order to ensure that the components are tightly fitted to form the required casting space. Cement is poured in the casting space to ensure that the cement is evenly distributed to avoid voids and cracks. After the cement solidifies to a specified strength, it is ready for demoulding. By moving the support plate downward, the support for the second support member is cancelled, and then the second support member is driven to close inwardly of the first support member, and then the first support member is also closed, so that a gap can appear between the inner mold column as a whole and the cement. When the gap is large enough, the cement cylinder can be demoulded smoothly by gently pulling it, avoiding the risk of damage. The adjustable inner mold column design significantly reduces the adhesion of the cement cylinder to the mold and the difficulty in demoulding, greatly simplifying the demoulding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of the mold of the present invention; Figure 2 This is a front view of the mold of the present invention; Figure 3 for Figure 2 A partial enlarged view of the middle AA; Figure 4 It is a schematic diagram of the structure of the inner mold column of the present invention; Figure 5 It is a structural schematic diagram of the fixing cylinder and the connecting member of the present invention; Figure 6 This is a schematic diagram of the bottom structure of the fixed cylinder of the present invention; Figure 7 for Figure 3 A partial enlarged view of the middle part; Figure 8 This is a schematic structural diagram of the inner mold column from another perspective of the present invention.

[0018] In the figure: 1. outer mold cylinder; 101. reinforcing ribs; 102. arc-shaped cylinder plate; 2. inner mold column; 201. first support member; 2011. accommodating space; 2012. slide groove; 202. support plate; 203. second support member; 3. casting space; 4. lifting rod; 5. bracket; 6. fixed cylinder; 601. air flow channel; 602. air inlet; 7. plate body; 8. hinged rod; 9. fixed plate; 10. hydraulic rod; 11. air inlet pipe; 12. casting bottom plate; 13. guide plate; 14. arc-shaped plate; 1401. protrusion; 15. connecting member; 16. connecting rod. DETAILED DESCRIPTION In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0019] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] Reference Figure 1 to Figure 8, which is the first embodiment of the present invention, proposes a mold for producing cement products, including: an outer mold cylinder 1; an inner mold column 2, the inner mold column 2 is arranged in the outer mold cylinder 1, and the outer mold cylinder 1 and the inner mold column 2 are coaxially arranged, a pouring space 3 is formed between the outer mold cylinder 1 and the inner mold column 2, and the pouring space 3 is used for pouring cement, and the inner mold column 2 includes: a first support member 201, which has a plurality of them, and a gap is left between adjacent first support members 201; a second support member 203, which has a plurality of them, each second support member 203 is slidably arranged in the gap between adjacent first support members 201, after the second support members 203 are unfolded, the outer walls of the plurality of second support members 203 and the outer walls of the plurality of first support members 201 form a cylindrical surface; a support plate 202, which can be raised and lowered and is arranged at the top center of the first support member 201, and the support plate 202 abuts against the second support member 203 after it is raised.

[0023] In the above scheme, the problem that the cement cylinder is not easy to demould after cooling in the prior art is solved, especially the difficulty of demoulding and product damage caused by the adhesion of the cement cylinder to the inner mold column 2 is avoided. The outer mold cylinder 1 is a steel cylinder with sufficient strength and corrosion resistance to ensure that the mold can still maintain a good shape and dimensional accuracy after repeated use. The inner mold column 2 is composed of a plurality of adjustable components, including a first support member 201 and a second support member 203, and a liftable support plate 202. The first support member 201 is a plurality of fan-shaped or arc-shaped steel plates with a smooth surface and uniformly distributed along the circumferential direction. A certain gap is left on both sides of each first support member 201 for installing the second support member 203. The second support member 203 is also a fan-shaped or arc-shaped structure, located in the gap between the first support members 201, and can be expanded or retracted in the first support member 201. When fully expanded, it and the first support member 201 together form a complete cylindrical surface to form the inner wall of the casting space 3. The support plate 202 is arranged at the center of the top of the first support member 201 and can be raised or lowered by hydraulic drive. When the support plate 202 rises, it will abut against the top of the second support member 203, assisting in pushing the second support member 203 to expand outward and fixing the top plate of the second support member 203, so as to facilitate subsequent pouring.

[0024] Operation steps: Assemble the first support member 201 and the second support member 203 into the inner mold column 2 in a predetermined order, ensure that the components fit closely together, and form the required casting space 3. Pour cement in the casting space 3 to ensure that the cement is evenly distributed to avoid voids and cracks. After the cement solidifies to the specified strength, prepare for demoulding. By moving the support plate 202 downward, it cancels the support for the second support member 203, and then drives the second support member 203 to close in the first support member 201, and then the first support member 201 is also closed, so that the inner mold column 2 as a whole can have a gap with the cement. When the gap is large enough, gently pull the cement cylinder to demould smoothly, avoiding the risk of damage. The design of the adjustable inner mold column 2 significantly reduces the adhesion of the cement cylinder to the mold and the difficulty of demoulding, greatly simplifying the demoulding process.

[0025] Furthermore, a plurality of first support members 201 form an accommodating space 2011 inside, and further include: a fixed cylinder 6, arranged in the accommodating space 2011; a hydraulic rod 10, arranged in the fixed cylinder 6, and the movable end of the hydraulic rod 10 extends out of the top of the fixed cylinder 6; a fixed plate 9, arranged on the movable end of the hydraulic rod 10; a plurality of connecting members 15, and the plurality of connecting members 15 are hingedly arranged on the outer wall of the fixed cylinder 6 at intervals, and the side of the connecting member 15 away from the fixed cylinder 6 is slidably arranged on the inner wall of the first support member 201 or the inner wall of the second support member 203; an articulated rod 8, one end of which is hinged to the fixed plate 9, and the other end of which is hinged to the connecting member 15, and the hydraulic rod 10 is used to drive the connecting member 15 to drive the first support member 201 and the second support member 203 to expand or retract.

[0026] In the above scheme, the fixed cylinder 6 is located at the center of the inner mold column 2, and the interior is a cavity for installing the hydraulic rod 10, which plays a supporting and guiding role. The hydraulic rod 10 is installed in the fixed cylinder 6, and its movable end extends out of the top of the fixed cylinder 6. The hydraulic power drives the connecting member 15, thereby controlling the expansion and retraction of the first support member 201 and the second support member 203. The fixed plate 9 is arranged on the movable end of the hydraulic rod 10, which is used to connect the hinged rod 8 and transmit the power of the hydraulic rod 10 to the connecting member 15. The connecting member 15 is hingedly arranged on the outer wall of the fixed cylinder 6 at intervals, and the other end of the connecting member 15 is connected to the inner wall of the first support member 201 or the second support member 203. Through the traction of the hinged rod 8, the first support member 201 and the second support member 203 can be expanded or retracted. The two ends of the hinged rod 8 are respectively hinged to the fixed plate 9 and the connecting member 15, which serve as a force transmission medium to convert the linear motion of the hydraulic rod 10 into the radial motion of the first support member 201 and the second support member 203.

[0027] Operation steps: Assemble the first support member 201 and the second support member 203 into the inner mold column 2 to ensure that the pouring space 3 is formed. Pour cement between the outer mold cylinder 1 and the inner mold column 2 and wait for solidification. After the cement solidifies, start the hydraulic system, the hydraulic rod 10 shrinks downward, and through the action of the fixed plate 9, the hinge rod 8 and the connecting member 15, the first support member 201 and the second support member 203 are retracted to reduce the diameter of the inner mold column 2. When the first support member 201 and the second support member 203 are completely retracted to form a sufficiently large gap, the cement cylinder is easily pulled to complete the demoulding. After demoulding, reversely operate the hydraulic rod 10 to extend it upward, drive the first support member 201 and the second support member 203 to re-expand, restore to the original state, and prepare for the next pouring. Through the integration of the hydraulic system, the automatic expansion and contraction of the inner mold column 2 is realized, which greatly reduces the labor intensity of the operator. Automatic control reduces manual intervention, reduces operating risks, and improves production safety. The rapid expansion and contraction process speeds up the production cycle and improves production efficiency.

[0028] Furthermore, a slide groove 2012 is provided on the inner wall of the first support member 201 or the inner wall of the second support member 203, and the slide groove 2012 is arranged along the axial direction of the first support member 201. The connecting member 15 includes: a plate body 7; a connecting rod 16, one end of which is hinged to the plate body 7, and the other end is hinged to the fixed cylinder 6; an arc plate 14, which is arranged on the side wall of the plate body 7, and the side of the arc plate 14 away from the plate body 7 has a protrusion 1401, and the protrusion 1401 is slidably set in the slide groove 2012.

[0029] In the above scheme, the slide groove 2012 is arranged on the inner wall of the first support member 201 or the second support member 203, arranged along the axial direction of the support member, and is used to guide the sliding of the connecting member 15 to ensure the linear motion and stability of the support member when it is unfolded and folded. The connecting member 15 includes a plate body 7, a connecting rod 16 and an arc plate 14, which constitute a linkage mechanism to ensure the uniform transmission of force and the precise movement of the support member. The plate body 7, as the main body of the connecting member 15, is connected to the connecting rod 16 and the arc plate 14 by a hinged manner to form a linkage structure. One end of the connecting rod 16 is hinged to the plate body 7, and the other end is hinged to the fixed cylinder 6, which is used to transmit the driving force from the hydraulic rod 10. The arc plate 14 is arranged on the side wall of the plate body 7, with a protrusion 1401, and the protrusion 1401 part matches the slide groove 2012, and is slidably arranged in the slide groove 2012 to ensure the smooth sliding of the connecting member 15 on the inner wall of the support member.

[0030] Furthermore, the protrusion 1401 is T-shaped, and the cross section of the slide groove 2012 is T-shaped.

[0031] In the above solution, the arc plate 14 can drive the first support member 201 or the second support member 203 to contract during the movement, thereby preventing the arc plate 14 from slipping off the first support member 201 and the second support member 203 .

[0032] Furthermore, it also includes: a casting bottom plate 12 in an annular shape, the casting bottom plate 12 is sleeved on the first support member 201, and the side of the casting bottom plate 12 away from the first support member 201 is detachably arranged on the inner wall of the outer mold tube 1.

[0033] In the above scheme, the casting bottom plate 12 is annular in design and is sleeved on the bottom of the first support member 201, and its outer edge is detachably arranged on the inner wall of the outer mold tube 1. The use of the casting bottom plate 12 ensures the flatness of the bottom of the cement product and provides a stable casting base surface for easy transportation and handling after demoulding. By adjusting the installation height of the casting bottom plate 12, cement cylinders of different specifications can be made.

[0034] Furthermore, the outer wall of the fixed tube 6 has an extension portion, and also includes: a bracket 5, which is arranged on the extension portion; a lifting rod 4, which is arranged on the bracket 5, and one end of the lifting rod 4 away from the bracket 5 is arranged on the support plate 202, and the lifting rod 4 is used to control the lifting of the support rod.

[0035] In the above scheme, the bracket 5 is arranged on the extension of the outer wall of the fixed tube 6, and is used to install and support the lifting rod 4 to ensure its stability and positioning accuracy. The lifting rod 4 is installed on the bracket 5, one end of which is fixed to the bracket 5, and the other end is connected to the support plate 202. The lifting rod 4 is responsible for controlling the lifting and lowering of the support plate 202, usually by electric or pneumatic means, and the height can be accurately adjusted as needed. Through the integration of the bracket 5 and the lifting rod 4, the full automation of the mold operation is achieved, manual intervention is reduced, and production efficiency and safety are improved. The use of the lifting rod 4 ensures the precise control of the lifting and lowering of the support plate 202, which helps to accurately expand and retract the inner mold column 2, and improves the quality of cement products. The addition of the bracket 5 and the lifting rod 4 not only enhances the functionality of the mold, but also maintains the modularity of the design, which is convenient for maintenance and upgrading.

[0036] Furthermore, there is an air flow channel 601 between the inner wall of the fixed cylinder 6 and the inner wall of the hydraulic rod 10, and the air flow channel 601 has an air inlet 602, which includes: an air inlet pipe 11, which is arranged through the bottom of the outer mold cylinder 1, and the air inlet pipe 11 is connected to the air inlet 602, and the air inlet pipe 11 is used to introduce air into the accommodating space 2011.

[0037] In the above scheme, by controlling the airflow, the temperature and humidity environment inside the mold are optimized, the cement curing process is accelerated, and the cracks and holes that may be generated during the solidification period are reduced, thereby improving the quality of the finished product. New components and functions: A surrounding ventilation path is formed between the inner wall of the fixed cylinder 6 and the inner wall of the hydraulic rod 10 for air circulation. The air inlet 602 is located at the bottom of the air flow channel 601 and serves as an entrance for external air to enter. The air inlet pipe 11 is arranged at the bottom of the outer mold cylinder 1 and is connected to the air inlet 602, and is used to introduce fresh air into the accommodating space 2011 inside the mold, thereby accelerating the curing process of the cement and achieving uniform and rapid cooling.

[0038] Furthermore, it also includes: a guide plate 13, which is arranged on the bottom circumference of the fixing plate 9, and the guide plate 13 is arranged obliquely toward the inner wall of the first support member 201, and the guide plate 13 is used to guide the airflow in the airflow channel 601 to the accommodating space 2011.

[0039] In the above scheme, the guide plate 13 is arranged on the circumference of the bottom of the fixing plate 9 and is inclined toward the inner wall of the first support member 201, so as to effectively guide the airflow introduced from the airflow channel 601 into the accommodating space 2011, and ensure that the air is evenly distributed inside the entire mold. During the cement curing process, air is continuously supplied to the inside of the mold through the air inlet pipe 11, and the guide plate 13 evenly distributes the airflow inside the entire mold, accelerating the hardening speed of the cement, while helping to discharge the moisture generated during the curing process and reducing the generation of cracks and holes. The guide plate 13 ensures that the air can evenly cover the entire mold, improves the efficiency of the ventilation system, and accelerates the curing of cement. Through the guidance of the guide plate 13, the temperature inside the mold is more uniform, reducing the problem of uneven cement curing caused by local overheating or overcooling. More uniform ventilation and temperature control help reduce defects in cement products and improve the strength and appearance quality of finished products.

[0040] Furthermore, the outer mold cylinder 1 includes: an arc-shaped cylinder plate 102, a plurality of arc-shaped cylinder plates 102 form a cylindrical cylinder body, and adjacent arc-shaped cylinder plates 102 are detachably connected.

[0041] In the above scheme, the outer mold cylinder 1 is no longer an integral steel cylinder, but a cylindrical cylinder body surrounded by a plurality of arc-shaped cylinder plates 102. These arc-shaped cylinder plates 102 are connected in a detachable manner, such as bolts, snaps or other quick connection mechanisms, which are convenient for quick assembly and disassembly, and easy to demold.

[0042] Furthermore, the outer mold cylinder 1 further comprises: a plurality of reinforcing ribs 101, which are arranged at intervals on the outer walls of the cylinder, thereby improving the strength of the outer cylinder and preventing the cement cylinder from being damaged by thermal expansion and contraction during production.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A mold for producing cement products, characterized in that: include: Outer mold cylinder (1); An inner mold column (2), wherein the inner mold column (2) is arranged in the outer mold cylinder (1), and the outer mold cylinder (1) and the inner mold column (2) are arranged coaxially, a casting space (3) is formed between the outer mold cylinder (1) and the inner mold column (2), and the casting space (3) is used for casting cement, and the inner mold column (2) comprises: A plurality of first support members (201), with gaps being left between adjacent first support members (201); There are a plurality of second support members (203), each of which is slidably disposed in a gap between adjacent first support members (201); after the second support members (203) are unfolded, outer walls of the plurality of second support members (203) and outer walls of the plurality of first support members (201) form a cylindrical surface; The support plate (202) is movably disposed at the top center of the first support member (201); the support plate (202) abuts against the second support member (203) after being raised.

2. A cement product production mold according to claim 1, characterized in that: A plurality of the first support members (201) form a receiving space (211) therein, and further include: A fixed cylinder (6) is arranged in the accommodating space (2011); A hydraulic rod (10) is disposed in the fixed cylinder (6), and a movable end of the hydraulic rod (10) extends out of the top of the fixed cylinder (6); A fixed plate (9) is arranged on the movable end of the hydraulic rod (10); A plurality of connecting members (15), wherein the plurality of connecting members (15) are hingedly arranged at intervals on the outer wall of the fixing tube (6), and a side of the connecting member (15) away from the fixing tube (6) is slidably arranged on the inner wall of the first supporting member (201) or the inner wall of the second supporting member (203); A hinged rod (8) has one end hinged to the fixing plate (9) and the other end hinged to the connecting member (15); the hydraulic rod (10) is used to drive the connecting member (15) to drive the first supporting member (201) and the second supporting member (203) to unfold or fold.

3. A cement product production mold according to claim 2, characterized in that: A slide groove (2012) is provided on the inner wall of the first support member (201) or the inner wall of the second support member (203), and the slide groove (2012) is arranged along the axial direction of the first support member (201). The connecting member (15) comprises: Plate(7); A connecting rod (16), one end of which is hinged to the plate body (7), and the other end of which is hinged to the fixing cylinder (6); The arc-shaped plate (14) is arranged on the side wall of the plate body (7); the side of the arc-shaped plate (14) away from the plate body (7) has a protrusion (1401); the protrusion (1401) is slidably arranged in the slide groove (2012).

4. A cement product production mold according to claim 3, characterized in that: The protrusion (1401) is T-shaped, and the cross-section of the slide groove (2012) is T-shaped.

5. A cement product production mold according to claim 1, characterized in that: Also includes: The casting bottom plate (12) is annular and is sleeved on the first support member (201). The side of the casting bottom plate (12) away from the first support member (201) is detachably arranged on the inner wall of the outer mold cylinder (1).

6. A cement product production mold according to claim 2, characterized in that: The outer wall of the fixing cylinder (6) has an extension portion, and further comprises: A bracket (5) is arranged on the extension portion; A lifting rod (4) is arranged on the bracket (5); one end of the lifting rod (4) away from the bracket (5) is arranged on the support plate (202); and the lifting rod (4) is used to control the lifting of the support rod.

7. A cement product production mold according to claim 2, characterized in that: An air flow channel (601) is provided between the inner wall of the fixing cylinder (6) and the inner wall of the hydraulic rod (10), and the air flow channel (601) has an air inlet (602), and includes: An air intake pipe (11) is arranged to penetrate the bottom of the outer mold tube (1), the air intake pipe (11) is communicated with the air intake port (602), and the air intake pipe (11) is used to introduce air into the accommodating space (2011).

8. A cement product production mold according to claim 7, characterized in that: Also includes: A guide plate (13) is arranged on the circumference of the bottom of the fixing plate (9), the guide plate (13) is arranged obliquely toward the inner wall of the first support member (201), and the guide plate (13) is used to guide the airflow in the airflow channel (601) into the accommodating space (2011).

9. A cement product production mold according to claim 1, characterized in that: The outer mold cylinder (1) comprises: The arc-shaped cylinder plates (102) are multiple arc-shaped cylinder plates (102) forming a cylindrical cylinder body, and adjacent arc-shaped cylinder plates (102) are detachably connected.

10. A cement product production mold according to claim 9, characterized in that: The outer mold cylinder (1) further comprises: There are a plurality of reinforcing ribs (101), and the plurality of reinforcing ribs (101) are arranged at intervals on the outer walls of the plurality of cylinders.

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