Double-layer composite steel die

Abstract

The utility model relates to the technical field of steel dies, and discloses a double-layer composite steel die which comprises a forming steel plate, the forming steel plate comprises a spraying face plate and a die bottom plate which are attached to each other, the die bottom plate is bonded with the spraying face plate, and the top face of the spraying face plate is a flat face; and the supporting assembly is connected to the mold bottom plate and used for supporting the mold bottom plate and the spraying panel. According to the double-layer composite steel die, the formed steel plate is designed to be of a composite structure of the spraying panel and the die bottom plate, the supporting assembly is welded to the die bottom plate, the spraying panel is bonded to the die bottom plate, and heat influence traces generated by welding can only be formed on the supporting assembly and the die bottom plate; according to the concrete spraying device, the spraying panel is not affected, the top face of the spraying panel is flat, concrete is sprayed to the top face of the spraying panel, the outer surface of a concrete member formed through spraying is also flat, and the quality of the concrete member formed through spraying is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of steel moulds, and more specifically, to a double-layer composite steel mould. Background Art

[0002] Steel molds are a commonly used mold in industrial production. They can produce equipment and components of various shapes on materials such as steel plates, profiles, and steel pipes. Steel molds are widely used in the manufacture of concrete components. Through their specific shape and structure, steel molds play a role in fixing and supporting during the concrete pouring or spraying process, ensuring that concrete components can be formed according to design requirements.

[0003] Steel molds used to manufacture concrete components using shotcrete are usually equipped with a forming steel plate to assist in the spraying of the concrete components. To save manufacturing costs, the thickness of the forming steel plate is usually designed to be thin, and the forming steel plate needs to be welded to other supporting components to ensure the stability of the forming steel plate. Due to the thinness of the forming steel plate, after the forming steel plate is welded and fixed, heat-affected marks will form on the top surface of the forming steel plate (the surface that is in direct contact with the concrete during spraying). This is because during the welding process, the bottom of the forming steel plate is exposed to the high-temperature heat source, and the heat will be transferred to the top of the forming steel plate, causing the top area to be thermally affected, resulting in color changes, microstructural changes, and certain deformation marks. These heat-affected marks, especially deformation, will make the top surface of the forming steel plate uneven, which will directly affect the quality of the sprayed concrete component. For some concrete components with high requirements for appearance, such products will fail to meet the standards, resulting in significant economic losses. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects in the prior art and provide a double-layer composite steel mold which can block the influence of heat impact traces on the quality of concrete components.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is to provide a double-layer composite steel mold, comprising:

[0006] A forming steel plate is used to assist in the injection molding of concrete components. The forming steel plate includes a spraying panel and a mold base plate that are bonded to each other. The mold base plate is bonded to the spraying panel, and the top surface of the spraying panel is a flat surface.

[0007] A support assembly is connected to the mold base plate and is used to support the mold base plate and the injection panel.

[0008] By using the double-layer composite steel mold described in the utility model, the forming steel plate is designed to be a composite structure of the injection panel and the mold base plate. The heat-affected marks generated by welding will only be formed on the supporting assembly and the mold base plate, and will not affect the injection panel. The top surface of the injection panel is flat, and the outer surface of the injection-molded concrete component is also flat, thereby ensuring the quality of the injection-molded concrete component.

[0009] Preferably, the mold base is made of galvanized steel and the injection panel is made of stainless steel. This design is beneficial to reducing the manufacturing cost of the formed steel plate.

[0010] Preferably, the bonding material between the injection panel and the mold base is one of epoxy resin glue, polyurethane glue or silicone glue. This design is conducive to improving the bonding strength between the injection panel and the mold base and extending the service life of the double-layer composite steel mold.

[0011] Preferably, the thickness of the injection panel and the mold base plate are both 1-5 mm, and the thickness of the injection panel is not greater than the thickness of the mold base plate. This design can ensure the strength of the formed steel plate and increase the service life of the double-layer composite steel mold.

[0012] Preferably, the support assembly includes a support unit connected to the formed steel plate and a square tube frame connected to the support unit, wherein the support unit is used to support the formed steel plate, and the square tube frame is used to support the support unit. This design is conducive to improving the overall stability of the double-layer composite steel mold.

[0013] Preferably, the support unit includes multiple support plates welded to the mold base plate and multiple reinforcement plates welded to the mold base plate. The multiple support plates are arranged in a linear array along the length of the formed steel plate and are fixedly connected to the square tube frame. The length of the reinforcement plates is consistent with the length of the formed steel plate. The multiple reinforcement plates are spaced apart along the outer circle of the mold base plate and are welded to the support plates. The multiple support plates and the reinforcement plates form a support unit with a grid structure. Such a design is conducive to the support unit providing uniform and stable support for the formed steel plate.

[0014] Preferably, the support plate is provided with a notch on one side close to the mold bottom plate, which is matched with the reinforcement plate. Such a design is conducive to the splicing and welding of the support unit and the overall assembly.

[0015] Preferably, the support plate has a first edge rib, and the first edge rib is perpendicular to the support plate. Such a design is conducive to improving the strength and bending resistance of the support plate.

[0016] Preferably, the invention further comprises a material blocking plate, wherein two material blocking plates are provided, and the two material blocking plates are respectively installed at both ends of the forming steel plate, and the material blocking plates protrude from the top surface of the forming steel plate. Such a design is conducive to controlling the accuracy of the spray-formed concrete component.

[0017] As an option, the mold further comprises a demoulding auxiliary plate connected to the mold base plate, the demoulding auxiliary plate being used to assist in demoulding the spray-formed concrete component. This design can assist in quickly demoulding the product by knocking on the demoulding auxiliary plate.

[0018] The beneficial effects of the present invention are:

[0019] By using the double-layer composite steel mold described in the utility model, the forming steel plate is designed to be a composite structure of a spray panel and a mold base plate. Since the support component is welded to the mold base plate and the spray panel and the mold base plate are bonded, the heat affected marks generated by welding will only be formed on the support component and the mold base plate, and will not affect the spray panel. The top surface of the spray panel is flat, and concrete is sprayed on the top surface of the spray panel according to design requirements. The outer surface of the spray-formed concrete component is also flat, which ensures the quality of the spray-formed concrete component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the double-layer composite steel mold;

[0021] Figure 2 yes Figure 1 A magnified view of the structure at center A;

[0022] Figure 3 This is a side view of a double-layer composite steel mold (the baffle is not installed);

[0023] Figure 4 yes Figure 3 A magnified view of the structure at B in the middle;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the support component;

[0025] Figure 6 is a schematic diagram of the three-dimensional structure of the support unit;

[0026] Figure 7 Schematic diagram of the three-dimensional structure of the support plate;

[0027] Figure 8 It is a side view schematic diagram of the support plate.

[0028] In the picture:

[0029] 100, forming steel plate; 110, injection panel; 120, mold bottom plate;

[0030] 200, support assembly; 210, support unit; 211, support plate; 2211, notch; 2112, first edge rib; 212, reinforcement plate; 220, square tube frame; 221, first square tube; 222, second square tube; 223, third tube;

[0031] 300, material blocking plate; 310, second edge rib;

[0032] 400. Demolding auxiliary plate. DETAILED DESCRIPTION

[0033] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be varied without departing from the scope of protection of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0034] In order to better understand the present invention, Figures 1-8 The double-layer composite steel mold of the present utility model is described in detail.

[0035] Example 1:

[0036] like Figures 1-4 As shown, the double-layer composite steel mold includes:

[0037] The forming steel plate 100 is used to assist in the injection molding of concrete components. The forming steel plate 100 includes a spraying panel 110 and a mold base 120 that are bonded to each other. The mold base 120 is bonded to the spraying panel 110, and the top surface of the spraying panel 110 is a flat surface.

[0038] The support assembly 200 is connected to the mold base plate 120 and is used to support the mold base plate 120 and the injection panel 110 .

[0039] It should be noted that the top surface of the injection panel 110 refers to the surface of the injection panel 110 away from the mold base plate 120, that is, the surface that is in direct contact with the concrete when concrete is sprayed; the mold base plate 120 is fixedly connected to the support assembly 200 by welding, and heat-affected marks will only be formed on the top surface of the mold base plate 120 where the mold base plate 120 and the injection panel 110 are in contact. The concrete is sprayed on the top surface of the injection panel 110 and will not contact the mold base plate 120, and will not be affected by the heat-affected marks on the mold base plate 120.

[0040] In this embodiment, the cross-sections of the injection panel 110 and the mold base plate 120 are both semicircular, the injection panel 110 is bonded to the inner circle of the mold base plate 120, the support assembly 200 is welded to the outer circle of the mold base plate 120, and the inner circle of the injection panel 110 is a flat surface.

[0041] By using the double-layer composite steel mold of the present invention, the forming steel plate 100 is designed as a composite structure of the injection panel 110 and the mold base plate 120. Since the support component 200 is welded to the mold base plate 120, the injection panel 110 and the mold base plate 120 are bonded. The heat affected marks generated by welding will only be formed on the support component 200 and the mold base plate 120, and will not affect the injection panel 110. The inner ring surface of the injection panel 110 is flat. When concrete is sprayed on the inner ring surface of the injection panel 110 according to design requirements, the outer surface of the injection-molded concrete component is also flat, thereby ensuring the quality of the injection-molded concrete component.

[0042] Example 2:

[0043] As an optimization of Example 1, the mold base plate 120 is made of galvanized steel, and the injection panel 110 is made of stainless steel.

[0044] It should be noted that designing the injection panel 110 as a stainless steel plate can ensure the strength of the injection panel 110, prevent the injection panel 110 from rusting, increase the service life of the injection panel 110, and thereby increase the service life of the double-layer composite steel mold. Designing the mold base plate 120 as a galvanized steel plate can ensure the strength of the mold base plate 120 while also having a certain anti-corrosion ability. The price of galvanized steel plates is lower than that of stainless steel plates. By designing the injection panel 110 and the mold base plate 120 as different materials, the manufacturing cost of the formed steel plate 100 can be reduced while ensuring that the performance of the formed steel plate 100 is basically unaffected.

[0045] Example 3:

[0046] As an optimization of Example 2, the bonding material between the injection panel 110 and the mold base plate 120 is one of epoxy resin glue, polyurethane glue or silicone glue.

[0047] It should be noted that if epoxy resin glue is used, epoxy resin steel glue can be selected; if polyurethane glue is used, polyurethane metal-specific AB glue can be selected; if silicone glue is used, silicone building weather-resistant sealant can be selected.

[0048] In this embodiment, the injection panel 110 is bonded to the mold base plate 120 by polyurethane metal-specific AB glue. The polyurethane metal-specific AB glue is a two-component adhesive designed specifically for metal bonding. It consists of two parts, A glue and B glue. When used, it only needs to be mixed in proportion and then evenly applied on the contact surface between the mold base plate 120 and the injection panel 110; the polyurethane metal-specific AB glue can provide extremely high adhesion, and can quickly and firmly bond the injection panel 110 and the mold base plate 120 together, and the polyurethane metal-specific AB glue has good weather resistance and is not easy to age or fail during long-term use. The polyurethane metal-specific AB glue also has a certain flexibility and can adapt to a certain degree of deformation and vibration, thereby effectively alleviating stress concentration and protecting the injection panel 110 and the mold base plate 120 from damage, thereby improving the service life of the double-layer composite steel mold.

[0049] Example 4:

[0050] As a further optimization of Example 3, the thicknesses of the injection panel 110 and the mold base plate 120 are both 1-5 mm, and the thickness of the injection panel 110 is not greater than the thickness of the mold base plate 120 .

[0051] It should be noted that if the thickness of the injection panel 110 is less than 1 mm, the strength of the injection panel 110 is low, and the injection panel 110 is easily damaged during use, which will reduce the service life of the double-layer composite steel mold; if the thickness of the mold base plate 120 is less than 1 mm, when the mold base plate 120 is welded to the support assembly 200, the top surface of the mold base plate 120 will produce a large deformation, and the flatness of the top surface of the mold base plate 120 is too poor, which will affect the bonding of the injection panel 110, resulting in a decrease in the bonding effect between the injection panel 110 and the mold base plate 120, and will also reduce the service life of the double-layer composite steel mold; if the thickness of the injection panel 110 or the mold base plate 120 is greater than 5 mm, it will not bring obvious beneficial effects to the formed steel plate 100, but will increase the manufacturing cost of the formed steel plate 100; by controlling the thickness of the injection panel 110 to be not greater than the thickness of the mold base plate 120, the manufacturing cost of the formed steel plate 100 can be reduced, which is more economical.

[0052] In this embodiment, the thickness of the injection panel 110 and the mold base plate 120 are both designed to be 3 mm. The thickness of the formed steel plate 100 formed after bonding with polyurethane metal special AB glue is 6 mm-7 mm (excluding 6 mm). If only a single layer of formed steel plate 100 is used, in order to avoid the heat-affected marks generated by welding the formed steel plate 100 and the support assembly 200 from being formed on the top surface of the formed steel plate 100, thereby affecting the flatness of the top surface of the formed steel plate 100, the thickness of the formed steel plate 100 should not be less than 10 mm. Therefore, such a design can reduce the manufacturing cost of the formed steel plate 100.

[0053] Example 5:

[0054] As an optimization of Example 4, Figure 1 and Figure 5 As shown, the support assembly 200 includes a support unit 210 connected to the formed steel plate 100 and a square tube frame 220 connected to the support unit 210 . The support unit 210 is used to support the formed steel plate 100 , and the square tube frame 220 is used to support the support unit 210 .

[0055] It should be noted that the support unit 210 is welded to the mold base plate 120. The support unit 210 provides support for the formed steel plate 100 and maintains the shape of the formed steel plate 100, preventing the formed steel plate 100 from undergoing plastic deformation and affecting the accuracy and quality of the spray-formed concrete components. The square tube frame 220 is used to provide support for the support unit 210, which facilitates the installation of the support unit 210 and provides stable support for the support unit 210. Compared with the use of a solid rod frame to provide support for the support unit 210, the use of the square tube frame 220 reduces the production cost of the support assembly 200 while ensuring the support strength.

[0056] In this embodiment, the square tube frame 220 includes a first square tube 221, a second square tube 222, and a third square tube 223, each of which is perpendicular to the other in the length direction. The length direction of the second square tube 222 is consistent with the length direction of the formed steel plate 100, and the length direction of the third square tube 223 is along the vertical direction. The first square tube 221, the second square tube 222, and the third square tube 223 are all provided in plurality. The plurality of first square tubes 221 are distributed in a linear array along the length direction of the formed steel plate 100, and the plurality of second square tubes 222 are welded to the support unit 21. 0, the axes of the second square tube 222 located at the bottom of the support unit 210 are in the same horizontal plane, and the second square tube 222 located at the bottom of the support unit 210 is welded to the first square tube 221; the axes of the second square tube 222 located at the top of the support unit 210 are in the same horizontal plane, and the second square tube 222 located at the top of the support unit 210 is welded to one end of the third square tube 223, and the other end of the third square tube 223 is welded to the first square tube 221, thereby forming a square tube frame 220 with a stable structure.

[0057] Example 6:

[0058] As a further optimization of Example 5, Figure 1 、 Figure 5 and Figure 6As shown, the support unit 210 includes a plurality of support plates 211 welded to the mold base plate 120 and a plurality of reinforcement plates 212 welded to the mold base plate 120. The plurality of support plates 211 are distributed in a linear array along the length direction of the formed steel plate 100, and the plurality of support plates 211 are fixedly connected to the square tube frame 220. The length direction of the reinforcement plates 212 is consistent with the length direction of the formed steel plate 100. The plurality of reinforcement plates 212 are distributed at intervals along the outer circle of the mold base plate 120, and the reinforcement plates 212 are welded to the support plates 211. The plurality of support plates 211 and the plurality of reinforcement plates 212 form a support unit 210 with a grid structure, providing uniform and stable support for the formed steel plate 100.

[0059] In this embodiment, the support plate 211 has a U-shaped structure. The support plate 211 and the reinforcing plate 212 are both welded to the outer ring of the mold bottom plate 120 , and the support plate 211 is welded to the second square tube 222 .

[0060] Example 7:

[0061] As a further optimization of Example 6, Figure 3 、 Figure 7 and Figure 8 As shown, a notch 2111 that cooperates with the reinforcing plate 212 is provided on one side of the support plate 211 close to the mold bottom plate 120 .

[0062] It should be noted that when installing the support plate 211 and the reinforcement plate 212, it is necessary to insert the reinforcement plate 212 into the corresponding slots 2111 of the multiple support plates 211, and then weld the support plate 211 and the reinforcement plate 212 together to form a grid-type support unit 210, and then weld the formed steel plate 100 to the support unit 210, so that the installation is quicker and more convenient.

[0063] In this embodiment, the notches 2111 are provided on the inner circle of the support plate 211 , and the inner circle of the same support plate 211 is provided with notches 2111 corresponding to the plurality of reinforcing plates 212 on a one-to-one basis.

[0064] Example 8:

[0065] As a further optimization of Example 7, Figure 7 As shown, the support plate 211 has a first edge rib 2112 , which is perpendicular to the support plate 211 . By designing the first edge rib 2112 , the strength and bending resistance of the support plate 211 can be improved.

[0066] In this embodiment, the first edge rib 2112 is arranged on the outer ring of the support plate 211, and the bottom surface of the U-shaped support plate 211 is a plane. Since the first edge rib 2112 is perpendicular to the support plate 211, that is, the first edge rib 2112 located at the bottom surface of the support plate 211 is horizontal, when the support plate 211 is welded to the second square tube 222, it is beneficial to the stable placement of the support plate 211 and improve the welding accuracy. The first edge rib 2112 of the support plate 211 is also welded to the second square tube 222, thereby improving the welding strength between the support plate 211 and the second square tube 222, and improving the overall stability of the double-layer composite steel mold.

[0067] Example 9:

[0068] As an optimization of Example 8, Figure 1 and Figure 2 As shown, it also includes a material blocking plate 300 , two of which are provided. The two material blocking plates 300 are respectively installed at both ends of the formed steel plate 100 , and the material blocking plates 300 protrude from the top surface of the formed steel plate 100 .

[0069] It should be noted that, since the baffle plate 300 protrudes from the top surface of the formed steel plate 100, the baffle plate 300 can play a good blocking role when spraying concrete, preventing concrete from leaking from the openings at both ends of the formed steel plate 100, thereby reducing the waste of concrete to a certain extent; the provision of the baffle plate 300 is also conducive to the forming of the end faces on both sides of the concrete component, and the concrete component after spraying does not need to be polished to a large extent on the end faces on both sides, which can save production time and improve production efficiency; the edge of the part of the baffle plate 300 protruding from the formed steel plate 100 can be used as a benchmark for the thickness of the sprayed concrete, which is convenient for employees to control the spraying amount, ensure that the thickness of the sprayed concrete component meets the requirements, and improve the accuracy and quality of the product.

[0070] In this embodiment, the structure of the baffle plate 300 is also U-shaped. The baffle plate 300 protrudes from the inner ring of the formed steel plate 100. The inner ring and the outer ring of the baffle plate 300 both have second edge ribs 310. The second edge ribs 310 are perpendicular to the baffle plate 300 to improve the strength and bending resistance of the baffle plate 300; the support plates 211 located at both ends of the formed steel plate 100 are respectively fitted with the two baffle plates 300, and the two baffle plates 300 are installed on the support plates 211 at both ends of the formed steel plate 100 by bolts and nuts to facilitate disassembly, assembly and replacement of the baffle plates 300.

[0071] Example 10:

[0072] As an optimization of Example 9, Figures 1-4As shown, the mold further includes a demoulding auxiliary plate 400 connected to the mold bottom plate 120, and the demoulding auxiliary plate 400 is used to assist in demoulding the spray-formed concrete component.

[0073] It should be noted that the concrete component formed after the concrete sprayed on the spray panel 110 solidifies has a certain bonding force with the spray panel 110. When the concrete component is demolded, it is necessary to knock the demolding auxiliary plate 400 to make the demolding auxiliary plate 400 vibrate, thereby driving the double-layer composite steel mold as a whole to vibrate, thereby facilitating the demolding of the concrete component.

[0074] In this embodiment, the cross-section of the demolding auxiliary plate 400 is L-shaped, the demolding auxiliary plate 400 is welded to the top of the mold base plate 120, and the demolding auxiliary plate 400 is welded to the support plate 211. The support plate 211 can provide certain support for the demolding auxiliary plate 400 to prevent the demolding auxiliary plate 400 from being greatly deformed when being hit, thereby improving the service life of the demolding auxiliary plate 400.

[0075] The above describes an embodiment of the utility model in conjunction with the accompanying drawings, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms without departing from the purpose of this embodiment and the scope of protection of the claims, all of which are protected by this embodiment.

Claims

1. Double-layer composite steel mold, characterized in that: include: A forming steel plate (100) is used to assist in the injection molding of a concrete component, the forming steel plate (100) comprising a spraying panel (110) and a mold base (120) that are bonded to each other, the mold base (120) being bonded to the spraying panel (110), and the top surface of the spraying panel (110) being a flat surface; A support assembly (200) is connected to the mold base plate (120) and is used to support the mold base plate (120) and the injection panel (110).

2. The double-layer composite steel mold according to claim 1, characterized in that: The mold base plate (120) is made of galvanized steel, and the injection panel (110) is made of stainless steel.

3. The double-layer composite steel mold according to claim 2, characterized in that: The bonding material between the injection panel (110) and the mold base plate (120) is one of epoxy resin glue, polyurethane glue or silicone glue.

4. The double-layer composite steel mold according to claim 2, characterized in that: The thickness of the injection panel (110) and the mold base plate (120) are both 1-5 mm, and the thickness of the injection panel (110) is not greater than the thickness of the mold base plate (120).

5. The double-layer composite steel mold according to claim 1, characterized in that: The support assembly (200) comprises a support unit (210) connected to the formed steel plate (100) and a square tube frame (220) connected to the support unit (210); the support unit (210) is used to support the formed steel plate (100); and the square tube frame (220) is used to support the support unit (210).

6. The double-layer composite steel mold according to claim 5, characterized in that: The support unit (210) includes a plurality of support plates (211) welded to the mold base plate (120), and a plurality of reinforcement plates (212) welded to the mold base plate (120). The plurality of support plates (211) are distributed in a linear array along the length direction of the formed steel plate (100), and the plurality of support plates (211) are fixedly connected to the square tube frame (220). The length direction of the reinforcement plates (212) is consistent with the length direction of the formed steel plate (100). The plurality of reinforcement plates (212) are distributed at intervals along the outer circle of the mold base plate (120), and the reinforcement plates (212) are welded to the support plates (211). The plurality of support plates (211) and the plurality of reinforcement plates (212) form a support unit (210) with a grid structure.

7. The double-layer composite steel mold according to claim 6, characterized in that: A notch (2111) that cooperates with the reinforcing plate (212) is provided on one side of the support plate (211) close to the mold bottom plate (120).

8. The double-layer composite steel mold according to claim 7, characterized in that: The support plate (211) has a first edge rib (2112), and the first edge rib (2112) is perpendicular to the support plate (211).

9. The double-layer composite steel mold according to claim 1, characterized in that: It also includes a material blocking plate (300), two of which are provided. The two material blocking plates (300) are respectively installed at both ends of the formed steel plate (100), and the material blocking plates (300) protrude from the top surface of the formed steel plate (100).

10. The double-layer composite steel mold according to claim 1, characterized in that: It also includes a demoulding auxiliary plate (400) connected to the mold bottom plate (120), and the demoulding auxiliary plate (400) is used to assist in demoulding the spray-formed concrete component.

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