Novel automatic core-pulling mold for building
By designing a new automatic shrink inner mold, using the articulated structure of the movable roof and side plates to separate from the cement building in steps, the problems of small hollow area and large friction in the automatic mold release technology of traditional cement building are solved, and the maximum hollow space and The production of lightweight cement products reduces costs and the difficulty of demolding.
Patent Information
- Application Number
- CN202421023727.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-13
AI Technical Summary
In the traditional automatic mold release technology of cement building, the hollow hollow mold release area of airbag is too small, resulting in large weight of cement products, waste of materials and high cost. The hard mold release is too large due to excessive friction and difficult to master the demolding time, which is easy to cause the mold release. The situation.
A new type of automatic shrink inner mold is designed, through the hinged structure of the movable roof and side plates, it is separated from the cast cement building in steps, dispersed friction, and achieved a larger hollow space and lightweight cement products, while reducing the difficulty of mold release.
The maximum internal hollow space is achieved, the weight of cement products is reduced, the production cost is reduced, and the mold release process is lighter and more economical, avoiding the problems of excessive friction and difficult to master the demolding time of the traditional method.
Smart Images
Figure CN222222976U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of construction, in particular to a novel automatic core-pulling mould for construction. Background Art
[0002] The field of automatic demoulding technology for cement buildings, especially for cement gatehouse columns, requires maximum internal hollow space, reduced weight, lower costs, and easy and light demoulding.
[0003] Traditional molds are generally airbags for hollow demoulding, such as Figure 1 As shown, the airbag is placed in the mold, inflated to full and then the cement is poured. After the cement solidifies, the airbag is deflated and pulled out. The disadvantages of this airbag hollow demoulding are: the hollow area is too small, resulting in a heavy weight of the finished cement product, wasting materials, and the airbag wears too quickly, resulting in increased costs.
[0004] There is another kind of hard ejection mold, such as Figure 2 As shown in the figure, the inner mold is a welded integral mold, which needs to be placed in the outer mold in advance, and then the cement is poured. After the cement solidifies, it is pulled out of the mold by external force. The disadvantages of this hard demolding are: because the inner membrane is in contact with the cement on all sides, the friction between the inner membrane and the cement is too large. If the cement solidification period is too long, the inner membrane and the cement are completely bonded and cannot be demolded. If the cement solidification period is too short, the cement will deform and collapse after hard demolding. Therefore, it is not easy to grasp the demolding time of this structure, which can easily cause the phenomenon of being unable to demold. Utility Model Content
[0005] In view of this, the utility model provides a new type of automatic core-pulling mold for buildings. The new type of core-pulling mold is suitable for automatic demoulding of cement buildings, mainly used for cement gatehouse columns, which can achieve the maximum internal hollow space, reduce weight, reduce costs, and is convenient and light to demould. It makes up for the process defects of traditional solid columns, hard demoulding and airbag hollowing.
[0006] The purpose of the utility model is achieved in the following ways:
[0007] A novel automatic core-pulling mold for buildings comprises an inner mold, wherein the inner mold is an automatic shrinking inner mold, and the automatic shrinking inner mold is composed of an inner mold bottom plate, movable side plates hinged on both sides of the inner mold bottom plate, and a movable top plate to form an inner mold with a cavity, wherein the structure of the movable top plate is that the top surface is small and the bottom surface is large, and both sides are inclined surfaces, the tops of the two movable side plates are inclined surfaces overlapping the two sides of the movable top plate, a main movable beam and a side plate shrinking rod are arranged in the cavity of the inner mold, the movable side plates are hinged to the side plate shrinking rod, the side plate shrinking rod is hinged to the main movable beam, and a top plate movable connecting rod is arranged on the inner mold bottom plate, and the two ends of the top plate movable connecting rod are respectively hinged to the inner mold bottom plate and the movable top plate.
[0008] The above-mentioned new type of automatic core-pulling mold for buildings, the top plate movable connecting rods are at least two groups of connecting rods arranged side by side between the movable top plate and the inner mold bottom plate, and each group of connecting rods has two, which are respectively arranged on both sides of the main movable beam and supported on both sides of the movable top plate.
[0009] The above-mentioned new type of automatic core-pulling mold for buildings has positioning supports at both ends of the inner mold bottom plate, on which the top plate movable connecting rod limit wires are threadedly connected, and the top plate movable connecting rod limit wires correspond to the corresponding top plate movable connecting rods.
[0010] The above-mentioned new type of automatic core-pulling mold for buildings, the side panel retracting rods are at least two groups of retracting rods arranged side by side between the movable top plate and the inner mold bottom plate, each group of retracting rods consists of two, the top ends of the two retracting rods are respectively hinged to the corresponding movable side panels, and the bottom ends are respectively hinged to the two sides of the main movable beam, and the two retracting rods in the same group are symmetrically arranged on both sides of the main movable beam.
[0011] The above-mentioned new type of automatic core-pulling mold for buildings is provided with a connecting plate on the main movable beam. The connecting plate is detachably connected to the main movable beam, and the two ends of the connecting plate are respectively hinged to the corresponding side plate contraction rods.
[0012] In the above-mentioned novel automatic core-pulling mould for buildings, the side panel retracting rod and the movable side panel are connected via a hinge.
[0013] The above-mentioned new type of automatic core-pulling mold for buildings has a cross-section of a movable top plate that is trapezoidal, and the upper base of the trapezoidal surface corresponds to the top surface of the movable top plate, the lower base of the trapezoidal surface corresponds to the bottom surface of the movable top plate, and the two sides of the trapezoidal surface correspond to the two side surfaces of the movable top plate.
[0014] The structure of the movable top plate in the above-mentioned novel automatic core-pulling mold for buildings is that the top surface is small and the bottom surface is large, and both sides are inclined surfaces. The tops of the two movable side plates are inclined surfaces overlapped with the two sides of the movable top plate.
[0015] The above-mentioned new type of automatic core-pulling mold for buildings has a structure in which the movable top plate has a large top surface and a small bottom surface and both sides are inclined surfaces, and the tops of the two movable side plates are inclined surfaces overlapping the two sides of the movable top plate.
[0016] The above-mentioned new type of automatic core-pulling mold for buildings has a cross-section of a movable top plate that is trapezoidal, and the upper base of the trapezoidal surface corresponds to the top surface of the movable top plate, the lower base of the trapezoidal surface corresponds to the bottom surface of the movable top plate, and the two sides of the trapezoidal surface correspond to the two side surfaces of the movable top plate.
[0017] Compared with the prior art, the present invention can have the following technical effects:
[0018] When demoulding, the utility model has the following steps: first, demoulding the movable top plate, pulling the movable connecting rod of the movable top plate, so that the movable top plate moves downward and is separated from the cast cement gatehouse columns, etc. Second, demoulding the movable side plates, pulling the side plate contraction lever, so that the movable side plates on both sides are closed toward the middle, so that the movable side plates are separated from the cast buildings (such as cement gatehouse columns, etc.), at this time, the movable top plate and the movable side plates are both separated from the cast buildings (such as cement gatehouse columns, etc.), only the inner mold bottom plate is still in contact with the cast buildings (such as cement sixth floor columns, etc.), and the movable top plate and the movable side plates are both closed on the inner mold bottom plate. Third, the inner mold bottom plate and the overall inner mold are completely demoulded, and the inner mold bottom plate is pulled to pull the overall inner mold out of the cast building. In this process, the movable top plate, the movable side plate and the inner mold bottom plate are separated from the cast buildings (such as cement gatehouse columns, etc.) in three steps, dispersing the friction of each part, and laying a foundation for overall flexible demoulding. If the traditional hard demoulding is subjected to force on all sides, the friction of demoulding is greatly increased, which can easily cause the phenomenon of demoulding failure, causing economic losses to the manufacturer. It also avoids the disadvantages of airbag hollow demoulding: "the hollow area is too small, resulting in a large weight of the cement product, wasting materials, and the airbag wears too quickly, resulting in increased costs." This new mold is economical, durable, easy to demould, and can be used with external molds of various sizes, which greatly reduces the weight of cement products and brings greater benefits to manufacturers.
[0019] The utility model is suitable for automatic demoulding of cement buildings, and is mainly used for cement gatehouse columns, which can realize the maximum internal hollow space, reduce weight, reduce costs, and make demoulding convenient and light. It makes up for the process defects of traditional solid columns, hard demoulding and airbag hollowing. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the airbag hollow demoulding mold.
[0021] Figure 2 Schematic diagram of the hard demoulding mold structure.
[0022] Figure 3 It is a schematic diagram of the structure of the utility model.
[0023] Figure 4 for Figure 3 Side view diagram.
[0024] Figure 5 It is a schematic diagram of the structure of the utility model in the contracted state.
[0025] Figure 6 for Figure 5 Side view diagram.
[0026] Figure 7 It is a schematic diagram of the structure of the utility model when only the top plate is retracted.
[0027] Figure 8 for Figure 7 Side view diagram.
[0028] Fig. 9 This is a schematic diagram of the original state of the movable top plate of the utility model.
[0029] Fig.10 for Fig. 9 Schematic diagram of the movable top plate in the retracted state.
[0030] Fig.11 It is a schematic diagram of the original state of the movable side panel of the utility model.
[0031] Fig.12 for Fig.11 Side view diagram.
[0032] Fig.13 It is a schematic diagram of the retracted state of the movable side panel of the utility model.
[0033] Fig.14 for Fig.13 Side view diagram.
[0034] Fig.15 This is a structural schematic diagram for removing the movable side panels and the side panel retraction rods.
[0035] Fig.16 for Fig.15 Schematic diagram of the contracted state. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.
[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] The following is combined with Figure 3-16 The structure and working process of the utility model are specifically described in detail.
[0041] like Figure 3-Figure 6 A new type of automatic core-pulling mold for buildings shown in the figure includes an inner mold, which is an automatic shrinking inner mold. The automatic shrinking inner mold is formed by an inner mold bottom plate 5, a movable side plate 1 hinged on both sides of the inner mold bottom plate, and a movable top plate 6 to form an inner mold with a cavity, wherein the tops of the movable side plates on both sides overlap with the two sides of the movable top plate, a main movable beam 7 and a side plate shrinking rod 8 are arranged in the cavity of the inner mold, the movable side plates are hinged with the side plate shrinking rod, the side plate shrinking rod is hinged with the main movable beam, and a top plate movable connecting rod 4 is arranged on the inner mold bottom plate, and the two ends of the top plate movable connecting rod are respectively hinged with the inner mold bottom plate 5 and the movable top plate 6. When demolding, the first step is to realize demolding of the movable top plate, pull the top plate movable connecting rod 4 of the movable top plate, so that the movable top mold moves downward and separates from the poured cement gatehouse columns, etc. The second step is to realize demoulding of the movable side panels, pull the side panel contraction lever 8, so that the movable side panels on both sides are closed to the middle, so that the movable side panels are separated from the cast building (such as cement gatehouse columns, etc.). At this time, the movable top plate and the movable side panels are separated from the cast building (such as cement gatehouse columns, etc.), and only the inner mold bottom plate is still in contact with the cast building (such as cement sixth floor columns, etc.), and the movable top plate and the movable side panels are closed on the inner mold bottom plate. The third step is to completely demould the inner mold bottom plate and the overall inner mold, pull the inner mold bottom plate, and pull the overall inner mold out of the cast building. In this process, the movable top plate, the movable side plate and the inner mold bottom plate are separated from the cast building (such as cement gatehouse columns, etc.) in three steps, which disperses the friction of each part and lays the foundation for overall flexible demoulding. If it is a traditional hard demoulding, it is subjected to force on all sides, which greatly increases the friction of demoulding, which is easy to cause the phenomenon of non-demolding, causing economic losses to the manufacturer. It also avoids the disadvantages of airbag hollow demoulding: "the hollow area is too small, resulting in heavy weight of cement products, wasting materials, and the airbag wears too quickly, resulting in increased costs." This new mold is economical, durable, easy to demould, and can be used with external molds of various sizes, which greatly reduces the weight of cement products and brings greater benefits to manufacturers.
[0042] like Figure 4 , Figure 8 , Fig. 9 , Fig.10 , Fig.15 and Fig.16 As shown, the structure of the movable top plate of the new type of building automatic core-pulling mold described in the utility model is as follows: the top plate movable connecting rod 4 is at least two groups of connecting rods arranged side by side between the movable top plate and the inner mold bottom plate, and each group of connecting rods is two, which are respectively arranged on both sides of the main movable beam 7 and supported on both sides of the movable top plate.
[0043] like Figure 4 , Figure 8 , Fig. 9 , Fig.10 , Fig.15 and Fig.16 As shown, the new type of automatic core-pulling mold for buildings has positioning supports 2 at both ends of the inner mold bottom plate, on which the top plate movable connecting rod limit wire 3 is threadedly connected, and the top plate movable connecting rod limit wire corresponds to the corresponding top plate movable connecting rod, that is, the top plate movable connecting rod limit wire is tightly pressed against the side surface of the corresponding top plate movable connecting rod.
[0044] The side surface of the top plate movable link 4 of the utility model is provided with two vertical edges, and a limiting slideway (not shown in the figure) of the movable link limiting wire is formed between the two vertical edges and the top plate movable link.
[0045] During the demoulding process of the movable top plate, the position of the original movable top plate 6 is adjusted by the operator, and the height is based on the consistency of the height of the side panels on both sides. After the height is determined, tighten the plate movable link limit wires 3 at both ends to fix the movable top plate. The order of shrinkage demoulding: first loosen the plate movable link limit wires 3 at both ends, use a wire rope or sling to fix one end to the top plate movable link a pulling point, and fix the other end on a forklift or other power, and drag the movable top plate 6 to move to the downward direction to demould. In order to protect the top plate movable link 4 from impact force, the movable top plate 6 slides down and is directly limited by the positioning support 2 to control the range of motion of the top plate movable link 4.
[0046] like Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16As shown, the movable side panel structure of the new type of automatic core-pulling mold for buildings is as follows: the side panel retracting rods 8 are at least two groups of retracting rods arranged side by side between the movable top plate 6 and the inner mold bottom plate 5, and each group of retracting rods has two retracting rods. The top ends of the two retracting rods are respectively hinged to the corresponding movable side panels, and the bottom ends are respectively hinged to the two sides of the main movable beam, and the two retracting rods in the same group are symmetrically arranged on both sides of the main movable beam. A connecting plate 9 is arranged on the main movable beam, and the connecting plate 9 is detachably connected to the main movable beam. The two ends of the connecting plate 9 are respectively hinged to the corresponding side panel retracting rods 8. The connecting plates are clamped on the top and bottom surfaces of the main movable beam, and the two sides of the two clamps are fixed with lengthened bolts. The lengthened bolts are also used as the hinge axis of the side panel retracting rods.
[0047] In the novel automatic core-pulling mold for buildings, the side panel retracting rod and the movable side panel are connected by hinges, so as to ensure that the side panel retracting rod can retract freely.
[0048] During the demoulding process of the movable side panel, in the original state, the first step is for the operator to adjust the position of the movable side panel 1 by himself, and the height is consistent with the original height of the movable top panel, and it is surrounded by the movable top panel to form a complete movable inner mold. After the height is determined, tighten the limit screws 3 of the movable connecting rod at both ends of the movable plate to fix the movable top panel. After the movable top panel is fixed, since the movable side panel and the movable top panel are overlapped, the position of the movable top panel is fixed, which limits the displacement of the movable side panel. The order of shrinkage demoulding: demould the movable top panel first, and then demould the movable side panel. The demoulding steps of the movable side panel are to fix one end of the wire rope or sling to the pulling point b of the main movable beam, and the other end to the forklift or other power, and drag the movable side panel 1 to the left to demould. After demoulding, the movable side panel is closed on the top of the movable top panel to completely demould the movable side panel. In this process, the position of the movable top panel can control the range of motion of the movable side panel.
[0049] The new automatic core-pulling mold for buildings described in the utility model has a structure in which the movable top plate has a small top surface and a large bottom surface, and both sides are inclined surfaces, and the tops of the two movable side plates are inclined surfaces overlapping the two sides of the movable top plate. Or conversely, the structure in which the movable top plate has a large top surface and a small bottom surface, and both sides are inclined surfaces, and the tops of the two movable side plates are inclined surfaces overlapping the two sides of the movable top plate.
[0050] The cross section of the movable top plate is a trapezoid, and the upper base of the trapezoidal surface corresponds to the top surface of the movable top plate, the lower base of the trapezoidal surface corresponds to the bottom surface of the movable top plate, and the two sides of the trapezoidal surface correspond to the two side surfaces of the movable top plate respectively.
[0051] The specific working process of the model is as follows:
[0052] When the inner mold is used and demoulded, the steps are also different for the two overlapping structures of the utility model.
[0053] The first structure: The structure of the movable top plate is that the top surface is small and the bottom surface is large, and both sides are inclined surfaces. The tops of the two movable side plates are inclined surfaces that overlap with the two sides of the movable top plate, such as Figure 1-Figure 16 shown.
[0054] When the inner mold is used, the order is to position the movable side plates first and then the movable top plate.
[0055] The details are as follows: The first step is to adjust the movable side panel to the working position. The position of the movable side panel 1 is adjusted by the operator to the preset position. The second step is to adjust the movable top panel to the working position. The position of the movable top panel 6 is adjusted by the operator. The height is based on the consistency of the height of the side panels on both sides. That is, the movable top panel rises upward, and the two sides of the movable top panel are tightly connected to the top of the movable side panels on both sides of the bottom panel to form a lap joint structure. After the height is determined, tighten the limit screws 3 of the plate movable connecting rod at both ends to fix the movable top panel. At this time, the inner mold adjustment is completed, and pouring is carried out. After pouring is completed, maintenance is carried out.
[0056] When demolding the inner mold, the first step is to demold the movable top plate, the second step is to demold the movable side plate, and the third step is to demold the inner mold bottom plate and the entire inner mold. The inner mold is demolded step by step in this order.
[0057] The specific steps are as follows: Step 1. During the demoulding process of the movable top plate, first loosen the limit wires 3 of the movable link at both ends of the plate, use a wire rope or a sling to fix one end to the pulling point a of the movable link of the top plate, and the other end to fix it on a forklift or other power, and drag the movable top plate 6 to move downward to demould. In order to protect the movable link 4 of the top plate from impact force, the movable top plate 6 slides down and is directly limited by the positioning support 2 to control the range of motion of the movable link 4 of the top plate. Step 2. During the demoulding process of the movable side plate, use a wire rope or a sling to fix one end to the pulling point b of the main movable beam, and the other end to fix it on a forklift or other power, and drag the movable side plate 1 to move to the left to demould. After demoulding, the movable side plate is closed on the top surface of the movable top plate to complete the demoulding of the movable side plate. In this process, the position of the movable top plate can control the range of motion of the movable side plate.
[0058] The second structure: the structure of the movable top plate is that the top surface is large and the bottom surface is small, and both sides are inclined surfaces. The tops of the two movable side plates are inclined surfaces overlapping the two sides of the movable top plate. No corresponding view is provided.
[0059] When the inner mold is in use, the order is to position the movable top plate first, and then the movable side plates.
[0060] The details are as follows: The first step is to adjust the movable top plate to the working position. The position of the movable top plate 6 is adjusted by the operator to the preset position. The second step is to adjust the movable side plate to the working position. The position of the movable side plate 1 is adjusted by the operator. The height is consistent with the height of the movable top plate, that is, the movable top plate rises upward, and the two sides of the movable top plate are tightly connected to the top of the movable side plate on both sides of the bottom plate to form a lap joint structure. After the height is determined, tighten the plate movable connecting rod limit screws 3 at both ends to fix the movable top plate. At this time, the inner mold adjustment is completed, and pouring is carried out. After pouring is completed, maintenance is carried out.
[0061] When demolding the inner mold, the first step is to demold the movable side plate, the second step is to demold the movable top plate, and the third step is to demold the inner mold bottom plate and the entire inner mold. The inner mold is demolded step by step in this order.
[0062] The specific steps are as follows: Step 1, during the demoulding process of the movable side panel, one end of a steel wire rope or a sling is fixed to the pulling point b of the main movable beam, and the other end is fixed to a forklift or other power source, and the movable side panel 1 is dragged to move to the left for demoulding. Step 2, during the demoulding process of the movable top panel, first loosen the limit wires 3 of the movable connecting rods at both ends of the plate, and one end of a steel wire rope or a sling is fixed to the pulling point a of the movable connecting rod of the top panel, and the other end is fixed to a forklift or other power source, and the movable top panel 6 is dragged to move downward for demoulding. In order to protect the movable connecting rod 4 of the top panel from impact force, the movable top panel 6 slides down and is directly limited by the positioning support 2 to control the range of motion of the movable connecting rod 4 of the top panel. After demoulding, the movable top panel is overlapped on the top surface of the movable side panel.
[0063] During demoulding, the utility model has the first step of demoulding the movable top plate or the movable side plate, and the second step of demoulding the movable side plate or the movable top plate. First, through two steps, demoulding the movable top plate before demoulding the movable side plate, or demoulding the movable top plate after demoulding the movable side plate, the movable side plate and the movable top plate are separated from the cast building (such as cement gatehouse columns, etc.) in two steps. At this time, the movable top plate and the movable side plate are separated from the cast building (such as cement gatehouse columns, etc.), and only the inner mold bottom plate is still in contact with the cast building (such as cement sixth floor columns, etc.), and the movable top plate and the movable side plate are closed on the inner mold bottom plate. In the third step, the inner mold bottom plate and the overall inner mold are completely demoulded, and the inner mold bottom plate is pulled to pull the overall inner mold out of the cast building. In this process, the movable top plate, the movable side plate and the inner mold bottom plate are separated from the cast building (such as cement gatehouse columns, etc.) in three steps, which disperses the friction of each part and lays a foundation for overall flexible demoulding. If the traditional hard demoulding is subjected to force on all sides, the friction of demoulding is greatly increased, which can easily cause the phenomenon of demoulding failure, causing economic losses to the manufacturer. It also avoids the disadvantages of airbag hollow demoulding: "the hollow area is too small, resulting in a large weight of the cement product, wasting materials, and the airbag wears too quickly, resulting in increased costs." This new mold is economical, durable, easy to demould, and can be used with external molds of various sizes, which greatly reduces the weight of cement products and brings greater benefits to manufacturers.
[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.
Claims
1. A new type of automatic core-pulling mold for construction, including an inner mold, characterized in that: The automatically retractable inner mold is formed by an inner mold bottom plate (5), movable side plates (1) hinged on both sides of the inner mold bottom plate, and a movable top plate (6) to form an inner mold with a cavity. The tops of the movable side plates on both sides are respectively overlapped with the two side surfaces of the movable top plate. A main movable beam (7) and a side plate retractable pull rod (8) are arranged in the cavity of the inner mold. The movable side plates are hinged to the side plate retractable pull rod, and the side plate retractable pull rod is hinged to the main movable beam. A top plate movable connecting rod (4) is arranged on the inner mold bottom plate. The two ends of the top plate movable connecting rod are respectively hinged to the inner mold bottom plate (5) and the movable top plate (6).
2. The new automatic core-pulling mold for construction according to claim 1 is characterized in that: The top plate movable connecting rods (4) are at least two groups of connecting rods arranged side by side between the movable top plate and the inner mold bottom plate, and each group of connecting rods consists of two connecting rods, which are respectively arranged on both sides of the main movable beam (7) and supported on both sides of the movable top plate.
3. The new automatic core-pulling mold for construction according to claim 1 or 2, characterized in that: Positioning supports (2) are respectively provided at both ends of the inner mold bottom plate, and top plate movable connecting rod limit screws (3) are threadedly connected to the positioning supports. The top plate movable connecting rod limit screws correspond to the corresponding top plate movable connecting rods, that is, the top plate movable connecting rod limit screws tightly press against the side surfaces of the corresponding movable top plates.
4. The new automatic core-pulling mold for construction according to claim 3 is characterized by: The side panel retractable rods (8) are at least two groups of retractable rods arranged side by side between the movable top plate (6) and the inner mold bottom plate (5), each group of retractable rods having two retractable rods, the top ends of the two retractable rods being respectively hinged to the corresponding movable side panels, and the bottom ends being respectively hinged to the two sides of the main movable beam, and the two retractable rods in the same group are symmetrically arranged on both sides of the main movable beam.
5. The new automatic core-pulling mold for construction according to claim 4 is characterized in that: A connecting plate (9) is provided on the main movable beam, the connecting plate (9) is detachably connected to the main movable beam, and both ends of the connecting plate (9) are respectively hinged to corresponding side plate retractable pull rods (8).
6. The new automatic core-pulling mold for construction according to claim 5 is characterized by: The side panel retracting rod is connected to the movable side panel via a hinge.
7. The new automatic core-pulling mold for construction according to claim 1 is characterized by: The structure of the movable top plate is that the top surface is small and the bottom surface is large, and both sides are inclined surfaces. The tops of the two movable side plates are inclined surfaces overlapped with the two sides of the movable top plate.
8. The new automatic core-pulling mold for construction according to claim 1 is characterized by: The structure of the movable top plate is that the top surface is large and the bottom surface is small, and both sides are inclined surfaces. The tops of the two movable side plates are inclined surfaces overlapped with the two sides of the movable top plate.
9. The new automatic core-pulling mold for construction according to claim 7 or 8, characterized in that: The cross section of the movable top plate is a trapezoid, and the upper base of the trapezoidal surface corresponds to the top surface of the movable top plate, the lower base of the trapezoidal surface corresponds to the bottom surface of the movable top plate, and the two sides of the trapezoidal surface correspond to the two side surfaces of the movable top plate respectively.