A tubular part for building based on internal and external clamping

Abstract

The application provides a building tubular part pouring forming mold based on internal and external clamping, which comprises two clamping modes.(1) The forming mold is provided with an outer frame body, an inner frame body, an edge sealing ring body and a top fixing beam, the outer frame body, the inner frame body and the top fixing beam are positioned and fixed through upper and lower clamping devices, and the edge sealing ring body is positioned and fixed through positioning pins arranged at two ends of the top fixing beam.(2) The forming mold is provided with an outer frame body, an inner frame body, an edge sealing ring body and a top fixing beam, the outer bottom edge plate, the outer left edge plate and the outer right edge plate of the outer frame body are connected through rotating shafts, the outer frame body, the inner frame body and the top fixing beam are positioned and fixed through internal clamping devices, and the edge sealing ring body is positioned and fixed through positioning pins arranged at two ends of the top fixing beam.The forming mold has the beneficial effects that the wall thickness of the pouring ventilation flue is uniform, the strength is stable, the hollow inner side wall and the outer side wall are relatively smooth, and the gas circulation is facilitated.

Description

Technical Field

[0001] This invention relates to a casting mold for tubular building components based on internal and external clamping, and to a building material forming machine, particularly to a mold for one-time casting of hollow tubular building components. Background Technology

[0002] Currently, the molding molds for tubular building components used in the construction market, such as ventilation ducts, flues, and tubular decorative components within walls, consist only of a left outer panel, a right outer panel, and an inner support plate on a workbench. The process involves manually scraping and pasting building adhesive material onto the workbench and its inner wall between the left and right outer panels. The inner support plate is then placed on the upper surfaces of the two outer panels, and more building adhesive material is scraped and pasted onto the inner support plate to complete the fabrication of the tubular building component.

[0003] The tubular building components produced using the above methods suffer from drawbacks such as rough inner walls, uneven wall thickness, and insufficient strength in the connections between edges. Rough inner walls in ventilation and flue systems not only affect ventilation and smoke passage but can also cause debris to adhere to the rough inner walls, leading to blockages. Uneven wall thickness results in inconsistent weight across finished products, and the thin-walled tubular surfaces severely impact the overall mechanical strength of the components. Insufficient strength in the connections between the edges of the tubular components necessitates increasing the wall thickness to enhance this strength. This increased wall thickness not only increases the weight of the components but also raises production costs. Although some building material manufacturers have developed and manufactured specialized double-cavity molds with both outer and inner walls, the inner wall is difficult to remove during final demolding. Even when the inner wall panel is forcibly removed, parts of the panel and edges may adhere to the component, severely affecting its strength. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a casting mold for tubular building components based on internal and external clamping, which includes two clamping configuration modes.

[0005] External clamping mode: The forming mold is provided with an outer frame, an inner frame, an edge sealing ring and a top fixing beam. The outer frame, inner frame and top fixing beam are positioned and fixed by an upper clamping device and a lower clamping device. The edge sealing ring is positioned and fixed by positioning pins set at both ends of the top fixing beam.

[0006] Specifically, the molding die includes an outer frame, an inner frame, and a sealing ring disposed between the outer frame and the inner frame. The outer frame is composed of an outer bottom plate, an outer left plate, and an outer right plate. The inner frame is composed of four inner plates. The molding die also includes an upper clamping device, a lower clamping device, and four top clamping beams. The top clamping beams are disposed on the inner side of the connection end of the four inner plates of the inner frame. Positioning holes are provided at both ends of the top clamping beams, and positioning pins are provided in the positioning holes. The upper clamping device and the lower clamping device are symmetrically arranged on both end faces along the length direction of the molding die.

[0007] More specifically, the upper clamping device consists of a clamping end and a supporting end. The clamping end has a U-shaped structure and consists of a connecting plate and clamping strips connected to both ends of the connecting plate. The supporting end consists of two vertical connecting plates and a bottom plate. Top-fixing bolts are provided on the vertical connecting plates, and top-fixing bolts are provided at both ends of the bottom plate along its length. The supporting end is connected to the inner bottom surface of the clamping end connecting plate via the two vertical connecting plates. The clamping end clamps onto the upper surfaces of the outer left and outer right side plates of the outer frame, for securing the outer left and outer right side plates. The supporting end supports the two upper top-fixing beams of the molding mold via top-fixing bolts.

[0008] More specifically, the lower clamping device consists of a clamping end and a supporting top end. The clamping end has a U-shaped structure and consists of a connecting plate and clamping strips connected to both ends of the connecting plate. The supporting top end consists of two vertical connecting plates and a bottom plate. Top-fixing bolts are provided on the vertical connecting plates, and top-fixing bolts are provided at both ends of the bottom plate along its length. The supporting top end is connected to the side of the clamping end connecting plate via two vertical connecting plates. The clamping end clamps onto the lower end surfaces of the outer left and outer right side plates of the outer frame, securing the outer left and outer right side plates. The inner bottom surface of the clamping end connecting plate is used to secure the outer bottom edge plate of the outer frame. The supporting top end supports the two lower top-fixing beams of the forming mold via top-fixing bolts.

[0009] More specifically, the connecting ends of the four inner side panels of the inner frame are provided with corner sealing strips; the corner sealing strips are connected to the four inner side panels at a 45-degree angle.

[0010] Internal locking mode: The forming mold is provided with an outer frame, an inner frame, an edge sealing ring, and a top fixing beam. The outer bottom plate, outer left plate, and outer right plate of the outer frame are rotatably connected by a rotating shaft. The outer frame, inner frame, and top fixing beam are positioned and fixed by an internal locking device, and the edge sealing ring is positioned and fixed by positioning pins set at both ends of the top fixing beam.

[0011] Specifically, the molding die includes an outer frame, an inner frame, and a sealing ring disposed between the outer frame and the inner frame. The outer frame is composed of an outer bottom plate, an outer left plate, and an outer right plate. The inner frame is composed of four inner plates. The molding die also includes an inner locking device, an outer U-shaped locking strip, and four top fixing beams. The four top fixing beams are disposed on the inner side of the connection end of the four plates of the inner frame. Positioning holes are provided at both ends of the top fixing beams, and positioning pins are disposed in the positioning holes. The inner locking device is symmetrically disposed on both ends of the molding die along its length. The outer bottom plate, outer left plate, and outer right plate of the outer frame are rotatably connected by a rotating shaft.

[0012] More specifically, the internal locking device consists of an annular octagon and a top-locking bolt disposed on the annular octagon. The internal locking device supports the top-locking beam of the forming mold through the top-locking bolt.

[0013] More specifically, the connecting ends of the four inner side panels of the inner frame are provided with corner sealing strips, and the corner sealing strips are connected to the connecting ends of the four inner side panels at a 45-degree angle.

[0014] More specifically, each of the four inner edge plates is a split structure consisting of two plates, with the two plates intersecting in a toothed manner and connected by a rotating shaft.

[0015] More specifically, the inner locking device consists of a rectangular inner ring, a top fixing bolt, and a contact body movably connected to the rectangular inner ring. The rectangular inner ring is provided with a guide post hole. The contact body passes through the guide post provided on its side and is sleeved in the guide post hole of the rectangular inner ring to realize the connection between the two. The top fixing bolt is rotatably connected to the rectangular inner ring, and its front threaded end abuts against the contact body.

[0016] More specifically, a tension spring is fitted onto the guide post of the contact body.

[0017] The beneficial effects of this invention are as follows: (i) The molding mold, with its outer and inner frame layers and the cooperation of the sealing ring, ensures that the cast ventilation duct has uniform wall thickness and stable strength, and that the hollow inner and outer sidewalls are relatively smooth, which is conducive to gas flow. (ii) The added top fixing beam is positioned and fixed by the upper and lower fixing devices, making it convenient and labor-saving to support the molding mold before casting and to dismantle it after casting, and preventing damage to the sidewalls of the cast ventilation duct during demolding. (iii) The sealing ring is positioned and fixed by the positioning pins at both ends of the top fixing beam, ensuring that the cast ventilation duct has a consistent length, which is conducive to standardized production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional exploded perspective view of the first embodiment of the external clamping mode of the casting and molding mold for tubular building components based on internal and external clamping according to the present invention.

[0019] Figure 2 This is a three-dimensional perspective view of the upper clamping device in the first embodiment of the external clamping mode of the casting and molding mold for tubular building components based on internal and external clamping according to the present invention.

[0020] Figure 3 This is a three-dimensional perspective view of the clamping device in the first embodiment of the external clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0021] Figure 4 This is the first embodiment of the external clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention. Figure 1 Node magnification 3D image

[0022] Figure 5 This is a three-dimensional perspective view of the front end of the first embodiment of the external clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0023] Figure 6 This is a front-end plan view of the first embodiment of the external clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0024] Figure 7 This is a front-end plan view of the second embodiment of the external clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0025] Figure 8 This is a three-dimensional perspective view of the second embodiment of the external clamping mode of the casting and molding mold for tubular building components based on internal and external clamping according to the present invention.

[0026] Figure 9 This is a three-dimensional exploded perspective view of the first embodiment of the internal clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0027] Figure 10 This is a three-dimensional perspective view of the internal clamping device in the first embodiment of the internal clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0028] Figure 11 This is a front-end plan view of the first embodiment of the internal clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0029] Figure 12 This is a three-dimensional perspective view of the front end of the first embodiment of the internal clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0030] Figure 13This is a three-dimensional exploded perspective view of the second embodiment of the internal clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0031] Figure 14 This is a three-dimensional perspective view of the internal clamping device in the second embodiment of the internal clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0032] Figure 15 This is a front-end plan view of the second embodiment of the internal clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0033] Figure 16 This is a three-dimensional perspective view of the front end of the second embodiment of the internal clamping mode of the casting mold for tubular building components based on internal and external clamping according to the present invention.

[0034] Figure 17 This is a three-dimensional perspective view of the inner frame connection in a second embodiment of the internal clamping mode of a casting mold for tubular building components based on internal and external clamping according to the present invention. Detailed Implementation

[0035] The external clamping mode of the casting mold for tubular building components based on internal and external clamping, as described in the present invention, will be further explained below with reference to the accompanying drawings.

[0036] First implementation example Figure 1 —— Figure 6 As shown

[0037] Specific Figure 1 As shown, the molding die includes an outer frame 1, an inner frame 2, and a sealing ring 3 disposed between the outer frame 1 and the inner frame 2. The outer frame 1 is composed of an outer bottom edge plate 11, an outer left side plate 12, and an outer right side plate 13. The inner frame 2 is composed of four inner edge plates 21. The molding die also includes an upper clamping device 4, a lower clamping device 5, and four top clamping beams 6. The top clamping beams 6 are disposed on the inner side of the connecting ends of the four inner edge plates 21 of the inner frame 2. The top clamping beams 6 have positioning holes 61 at both ends, and positioning pins 62 are disposed in the positioning holes 61. The upper clamping device 4 and the lower clamping device 5 are symmetrically arranged on both end faces along the length direction of the molding die.

[0038] Further specific Figure 2As shown, the upper clamping device 4 consists of a clamping end A1 and a supporting end A2. The clamping end A1 has a U-shaped structure and consists of a connecting plate A1a and clamping strips A1b connecting both ends of the connecting plate A1a. The supporting end A2 consists of two vertical connecting plates A2a and a bottom plate A2b. A top-fixing bolt A2c is provided on the vertical connecting plates A2a, and a top-fixing bolt A2c is provided at both ends of the bottom plate A2b along its length. The supporting end A2 is connected to the inner bottom surface of the connecting plate A1a of the clamping end A1 via the two vertical connecting plates A2a. The clamping end A1 clamps onto the upper end surfaces of the outer left side plate 12 and the outer right side plate 13 of the outer frame 1, for clamping the outer left side plate 12 and the outer right side plate 13. The supporting end A2 supports the two upper top-fixing beams 6 of the forming mold via the top-fixing bolts A2c.

[0039] Further specific Figure 3 As shown, the lower clamping device 5 consists of a clamping end A1 and a supporting end A2. The clamping end A1 has a U-shaped structure and consists of a connecting plate A1a and clamping strips A1b connected to both ends of the connecting plate A1a. The supporting end A2 consists of two vertical connecting plates A2a and a bottom plate A2b. A top-fixing bolt A2c is provided on the vertical connecting plate A2a, and a top-fixing bolt A2c is provided at both ends of the bottom plate A2b along its length. The supporting end A2 is connected to the side of the connecting plate A1a of the clamping end A1 via the two vertical connecting plates A2a. The clamping end A1 clamps onto the upper surfaces of the outer left side plate 12 and outer right side plate 13 of the outer frame 1, for clamping the outer left side plate 12 and outer right side plate 13. The inner bottom surface of the connecting plate A1a of the clamping end A1 is used to clamp the outer bottom side plate 11 of the outer frame 1. The supporting end A2 supports the two lower top-fixing beams 6 of the forming mold via the top-fixing bolts A2c.

[0040] In the molding die structure of the first embodiment described above Figure 4 As shown, to ensure that the length of the ventilation ducts and flues cast by the molding mold remains consistent and that the molding mold can produce ventilation ducts and flues of different lengths, positioning holes 61 are provided at both ends of the top fixing beam 6. Positioning pins 62 are inserted into the positioning holes 61. The positioning pins 62 are used to block the inner edge plate 21 of the sealing ring 3 and the inner frame 2, thereby controlling the length of the cast ventilation ducts and flues. By inserting the positioning pins 62 into the positioning holes 61 at different positions at both ends of the top fixing beam 6, ventilation ducts and flues of different lengths can be cast.

[0041] In the molding die structure of the first embodiment described above Figure 5 Figure 6As shown, the outer frame 1, inner frame 2, sealing ring 3, and four top-fixing beams 6 of the molding mold are connected and fastened together by an upper clamping device 4 and a lower clamping device 5. The grout is injected through the upper opening of the outer frame 1. Specifically, the clamping end A1 of the upper clamping device 4 clamps onto the upper end face of the outer left side plate 12 and outer right side plate 13 of the outer frame 1 for securing the outer left side plate 12 and outer right side plate 13. The supporting end A2 supports the two upper top-fixing beams 6 of the molding mold through the top-fixing bolt A2c. The clamping end A1 of the lower clamping device 5 clamps onto the lower end face of the outer left side plate 12 and outer right side plate 13 of the outer frame 1 for securing the outer left side plate 12 and outer right side plate 13. The inner bottom surface of the clamping end A1 is connected to the plate A1a for securing the outer bottom edge plate 11 of the outer frame 1. The supporting end A2 supports the two upper top-fixing beams 6 of the molding mold through the top-fixing bolt A2c. Under the simultaneous action of the clamping device 4 and the lower clamping device 5, the four top-fixing beams 6 push outwards to support the inner side plate 21 of the inner frame 2 onto the inner side wall of the sealing ring 3. Under the simultaneous action of the clamping device 4 and the lower clamping device 5, the outer bottom side plate 11, the outer left side plate 12, and the outer right side plate 13 of the outer frame 1 are clamped inwards onto the outer side wall of the sealing ring 3.

[0042] To facilitate the demolding of the inner frame 2 after the molding mold is cast, the present invention also provides a second embodiment of the molding mold under the external clamping mode.

[0043] Specific Figure 7 Figure 8 As shown, the difference between this embodiment and the first embodiment is that the connecting ends of the four inner side panels 21 of the inner frame 2 are provided with corner sealing strips 7, and the corner sealing strips 7 and the connecting ends of the four inner side panels 21 are connected at a 45-degree angle. Figure 7 The four top-fixing beams 6 shown, under the simultaneous action of the clamping device 4 and the lower clamping device 5, push the inner side plate 21 and the corner sealing strip 7 of the inner frame 2 outward to the inner side wall of the sealing ring 3. The connection mode of the inner frame 2, which combines the inner side plate 21 and the corner sealing strip 7, makes it easier to remove the inner side plate 21 during the demolding process of the forming mold.

[0044] The internal locking mechanism of a casting mold for tubular building components based on internal and external locking, as described in the present invention, will be further explained below with reference to the accompanying drawings.

[0045] First implementation example Figure 9 —— Figure 12 As shown

[0046] Specifically, Figure 9The molding die shown includes an outer frame 1, an inner frame 2, and a sealing ring 3 disposed between the outer frame 1 and the inner frame 2. The outer frame 1 is composed of an outer bottom plate 11, an outer left plate 12, and an outer right plate 13. The inner frame 2 is composed of four inner plates 21. The molding die also includes an inner locking device 8, an outer U-shaped locking strip 9, and four top fixing beams 6. The four top fixing beams 6 are disposed on the inner side of the connection end of the four plates 21 of the inner frame 2. The top fixing beams 6 have positioning holes 61 at both ends, and positioning pins 62 are disposed in the positioning holes 61. The inner locking device 8 is symmetrically arranged on both ends of the molding die along its length. The outer bottom plate 11, outer left plate 12, and outer right plate 13 of the outer frame 1 are rotatably connected by a rotating shaft 10. The positioning holes 61 at both ends of the top fixing beams 6 are provided with positioning pins 62, and their function is consistent with the outer locking mode of the molding die structure.

[0047] More specifically, Figure 10 The internal locking device 8 shown consists of an annular octagon 81 and a top-fixing bolt A2c disposed on the annular octagon 81. The internal locking device supports the top-fixing beam 6 of the forming mold through the top-fixing bolt A2c.

[0048] In the molding die structure of the first embodiment described above Figure 11 Figure 12 As shown, the outer frame 1, inner frame 2, sealing ring 3, and four top-fixing beams 6 of the molding mold are connected and fastened together by an internal clamping device 8. The slurry is injected through the upper opening of the outer frame 1. Specifically, the internal clamping device 8 is located on the inner side of the inner frame 2, and the clamping device 8 supports the four top-fixing beams 6 of the molding mold through the top-fixing bolts A2c. Under the action of the internal clamping device 8, the four top-fixing beams 6 push outwards against the inner side plate 21 of the inner frame 2 to the inner side wall of the sealing ring 3. The outer bottom side plate 11, outer left side plate 12, and outer right side plate 13 of the outer frame 1 are clamped inwards against the outer side wall of the sealing ring 3 under the simultaneous action of the outer U-shaped clamping strip 9 and the rotating shaft 10.

[0049] To facilitate easier demolding of the inner frame 2 after casting, the present invention also provides a second embodiment, for example, a locking mode within the structure of the molding mold. Figure 13 —— Figure 17 As shown

[0050] Specific Figure 17 As shown, the difference from the first embodiment is that the four inner side plates 21 are all split structures consisting of two plate surfaces 21a and 21b, which are intersected in a toothed manner and rotatably connected by a rotating shaft 10. During the demolding process of the inner frame 2 of the mold, the two plate surfaces 21a and 21b of the inner side plates 21 are bent inward by the rotating shaft 10, so that the inner side plates 21 can be easily separated from the inner cavity of the cast product.

[0051] More specifically, Figure 14 The internal locking device 8 shown consists of a rectangular inner ring 82, a locking bolt A2c, and a contact body 83 movably connected to the rectangular inner ring 82. The rectangular inner ring 82 has a guide post hole 82a. The contact body 83 passes through the guide post 83a on its side and is fitted into the guide post hole 82a of the rectangular inner ring 82 to achieve connection between the two. The locking bolt A2c is rotatably connected to the rectangular inner ring 82, and its front threaded end abuts against the contact body 83.

[0052] In the molding die structure of the second embodiment described above Figure 15 Figure 16 As shown, the outer frame 1, inner frame 2, sealing ring 3, and four top-fixing beams 6 of the molding mold are connected and fastened together by an internal clamping device 8. The slurry is injected through the upper opening of the outer frame 1. Specifically, the internal clamping device 8 is located on the inner side of the inner frame 2. The clamping device 8 drives the top contact body 83 to simultaneously support the four top-fixing beams 6 of the molding mold and the four inner side plates 21 of the inner frame 2 by rotating the top-fixing bolt A2c. Under the action of the top contact body 83, the four top-fixing beams 6 and the four inner side plates 21 are pushed outwards to the inner wall of the sealing ring 3. The outer bottom side plate 11, outer left side plate 12, and outer right side plate 13 of the outer frame 1 are clamped inwards to the outer side wall of the sealing ring 3 under the simultaneous action of the outer U-shaped clamping strip 9 and the rotating shaft 10.

[0053] To enhance the ease of movement of the contact body 83 of the internal locking device 8 in both working and non-working states, Figure 14 A tension spring 83b is fitted onto the guide post 83a of the contact body 83 shown. In the non-operating state of the inner locking device 8, the tension spring 83b pulls the contact body 83 against the outer surface of the rectangular inner ring 82.

[0054] The inner frame 2 of the first and second embodiments of the above-mentioned molding die clamping mode can also adopt the following... Figure 7 Figure 8 The four inner edge panels 21 shown are provided with corner sealing strips 7 at their connecting ends. The corner sealing strips 7 and the connecting ends of the four inner edge panels 21 are connected at a 45-degree angle.

[0055] The above is a detailed description of a casting mold for tubular building components based on internal and external clamping, provided by an embodiment of the present invention. For those skilled in the art, based on the concept of the embodiments of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention, and any changes made according to the design concept of the present invention are within the protection scope of the present invention.

Claims

1. A casting mold for tubular building components based on internal and external clamping, comprising an outer frame, an inner frame, and a sealing ring disposed between the outer frame and the inner frame, wherein the outer frame is composed of an outer bottom edge plate, an outer left side plate, and an outer right side plate, and the inner frame is composed of four inner edge plates, characterized in that... The molding die also includes an upper clamping device, a lower clamping device, and four top clamping beams. The top clamping beams are located on the inner side of the connection end of the four inner side plates of the inner frame. The top clamping beams are provided with positioning holes at both ends, and positioning pins are provided in the positioning holes. The upper clamping device and the lower clamping device are symmetrically arranged on both end faces along the length direction of the molding die. Both the upper and lower clamping devices consist of a clamping end and a supporting top. The clamping end has a U-shaped structure and consists of a connecting plate and clamping strips connected to both ends of the connecting plate. The supporting top consists of two vertical connecting plates and a bottom plate. Top clamping bolts are provided on the vertical connecting plates, and top clamping bolts are provided at both ends of the bottom plate along its length. The top of the upper clamping device is connected to the inner bottom surface of the clamping end plate by two vertical connecting plates. Its clamping end clamps on the upper surface of the outer left and outer right plates of the outer frame for clamping the outer left and outer right plates. Its top of the upper clamping device supports the upper two clamping beams of the forming mold by clamping bolts.

2. The casting mold for tubular building components based on internal and external clamping as described in claim 1, characterized in that, The top of the lower clamping device is connected to the side of the clamping end plate by two vertical connecting plates. The clamping end is clamped on the lower end surface of the outer left and outer right plates of the outer frame for clamping the outer left and outer right plates. The inner bottom surface of the connecting plate at the end of the clamp is used to secure the outer bottom edge plate of the outer frame; The top of the support is supported by the two lower support beams of the forming mold through the top support bolts.

3. The casting mold for tubular building components based on internal and external clamping as described in claim 1, characterized in that, Corner sealing strips are provided at the connecting ends of the four inner side panels of the inner frame. The corner sealing strip is connected to the four inner edge panels at a 45-degree angle.

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