A mould for processing CSW-CFST truss chord beam combined beam

Abstract

This utility model discloses a mold for processing CSW-CFST truss-chord composite beams, comprising: an upper mold and a lower mold, wherein the upper mold and the lower mold are provided with ventilation pipe grooves, and ventilation pipe assemblies are provided on the ventilation pipe grooves; the lower mold is provided with a demolding assembly, wherein the demolding assembly includes a first vertical rod and a second vertical rod; mounting grooves are provided on both sides of the lower mold; sprockets are fixedly installed on the outer walls of the bottom ends of the first vertical rod and the outer walls of the bottom ends of the second vertical rod, and chain belts are provided on the outer walls of the sprockets; a second bevel gear is fixedly installed on the outer wall of the top end of the first vertical rod; and a first threaded column is fixedly installed on the top end of the first vertical rod. Through the above structure, uniform separation of the mold is effectively achieved, avoiding damage to the surface of the composite beam, preventing deformation of the corrugated steel web and failure of the steel-concrete bond, improving production quality, and achieving good results in use.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a mold for processing CSW-CFST truss-chord composite beams. Background Technology

[0002] CSW-CFST truss-chord composite beam is a new type of bridge structural component. It replaces the traditional truss web members with corrugated steel web members and combines them with steel-concrete composite chord members to form a high-efficiency and fatigue-resistant composite structure. Truss-chord composite beam: steel-concrete composite beam uses steel-concrete composite chord members as chord members and connects the chord members through corrugated steel web members to form a truss-like force system.

[0003] Currently, in the processing of CSW-CFST truss-chord composite beams, molds are required for concrete pouring. Traditional molds are prone to uneven stress during demolding after pouring, leading to concrete surface damage, deformation of the corrugated steel web, and failure of the bond between the steel tube and concrete. This greatly reduces the quality of CSW-CFST truss-chord composite beams and results in poor performance. Utility Model Content

[0004] The purpose of this utility model is to provide a mold for processing CSW-CFST truss-chord composite beams. In order to solve the problem that in the current processing of CSW-CFST truss-chord composite beams, it is necessary to use molds for concrete pouring. Traditional molds are prone to uneven stress during demolding after pouring, which can lead to damage to the concrete surface, deformation of the corrugated steel web and failure of the bond between the steel tube and the concrete. This greatly reduces the quality of CSW-CFST truss-chord composite beams and results in poor performance.

[0005] To achieve the above objectives, a mold for processing CSW-CFST truss-chord composite beams is provided, comprising: an upper mold and a lower mold, wherein the upper mold and the lower mold are provided with ventilation pipe grooves, ventilation pipe grooves are provided with air-clearing pipe components, and the lower mold is provided with a demolding component;

[0006] The demolding assembly includes a first vertical rod and a second vertical rod. Mounting slots are provided on both sides of the lower mold. A sprocket is fixedly mounted on the outer wall of the bottom end of both the first and second vertical rods. A chain is provided on the outer wall of the sprocket. A second bevel gear is fixedly mounted on the outer wall of the top end of the first vertical rod. A first threaded post is fixedly mounted on the top end of the first vertical rod. A first ejector post is threaded onto the outer wall of the first threaded post. A second threaded post is fixedly mounted on the top end of the second vertical rod. A second ejector post is threaded onto the outer wall of the second threaded post. Limiting blocks are fixedly mounted on both sides of the first and second ejector posts. A driving block is rotatably mounted on the side wall of the lower mold. A driving rod is fixedly mounted on the outer wall of the driving block. A first bevel gear is fixedly mounted on the other end of the driving rod. A through groove is provided on the upper surface of the lower mold, and a limiting groove is provided on the inner wall of the through groove.

[0007] According to the mold for processing CSW-CFST truss-chord composite beam, the bottom ends of the first vertical rod and the second vertical rod are rotatably installed in the mounting groove, and the outer wall of the drive block is provided with threaded holes.

[0008] According to the mold for processing CSW-CFST truss chord composite beam, the first bevel gear and the second bevel gear are meshed, and the first top mold column and the second top mold column are slidably connected to the inner wall of the through groove.

[0009] According to the mold for processing CSW-CFST truss-chord composite beam, limit rings are fixedly installed on the outer walls of the bottom ends of the first threaded column and the second threaded column.

[0010] According to the mold for processing CSW-CFST truss-chord composite beam, a tie rod is fixedly installed on the upper surface of the upper mold, a pouring pipe is provided on the upper surface of the upper mold, a positioning hole is opened on the lower surface of the upper mold, and a positioning pin is fixedly installed on the upper surface of the lower mold.

[0011] According to the mold for processing CSW-CFST truss-chord composite beam, the venting pipe assembly includes an outer ring, which is fixedly installed on the inner wall of the venting pipe groove by a bracket, and a venting rod is slidably installed on the inner wall of the outer ring.

[0012] According to the mold for processing CSW-CFST truss-chord composite beam, a pressure plate is fixedly installed at one end of the unblocking rod, and springs are fixedly installed on the outer walls of both ends of the pressure plate.

[0013] According to the mold for processing CSW-CFST truss-chord composite beam, spring grooves are provided on the outer walls of the upper mold and the lower mold, and the inner wall of the spring groove is fixedly connected to the other end of the spring.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] In this utility model, by setting a demolding component, the upper mold and the lower mold are effectively separated at a uniform speed, avoiding damage to the concrete surface, deformation of the corrugated steel web and failure of the steel tube concrete bond caused by uneven stress. This greatly improves the production quality of the CSW-CFST truss chord composite beam and has good performance.

[0016] In this invention, an air venting assembly is provided. This design effectively enables the rapid unblocking of the air venting channels in the upper and lower molds without the need for auxiliary tools, thus shortening the preparation time for the next injection molding and resulting in good performance.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of a mold for processing CSW-CFST truss-chord composite beams according to the present invention.

[0020] Figure 2 This is an exploded view of a mold for processing CSW-CFST truss-chord composite beams according to the present invention.

[0021] Figure 3 This is a cross-sectional view of the ventilation pipe groove in a mold for processing CSW-CFST truss-chord composite beams according to the present invention.

[0022] Figure 4 This is a perspective view of a demolding component in a mold for processing CSW-CFST truss-chord composite beams according to the present invention.

[0023] Figure 5 This is a cross-sectional view of the top mold column in a mold for processing CSW-CFST truss-chord composite beams according to the present invention.

[0024] Figure 6 This is an enlarged view of point A in a mold used for processing CSW-CFST truss-chord composite beams according to this utility model.

[0025] Legend:

[0026] 1. Upper mold; 2. Lower mold; 3. Pouring pipe; 4. Tie rod; 5. Demolding assembly; 51. Drive block; 52. First top mold pillar; 53. Second top mold pillar; 54. Drive rod; 55. First bevel gear; 56. First vertical rod; 57. Second vertical rod; 58. Sprocket; 59. Chain belt; 510. Second bevel gear; 511. First threaded post; 512. Second threaded post; 513. Limiting ring; 6. Air vent assembly; 61. Pressure plate; 62. Air vent rod; 63. Outer ring; 64. Spring groove; 65. Spring; 7. Positioning pin; 8. Air vent groove. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] Reference Figure 1-6 This utility model provides a mold for processing CSW-CFST truss chord composite beams, comprising: an upper mold 1 and a lower mold 2. A tie rod 4 is fixedly installed on the upper surface of the upper mold 1, a pouring pipe 3 is provided on the upper surface of the upper mold 1, a positioning hole is provided on the lower surface of the upper mold 1, a positioning pin 7 is fixedly installed on the upper surface of the lower mold 2, a venting pipe groove 8 is provided on the upper mold 1 and the lower mold 2, a venting pipe assembly 6 is provided on the venting pipe groove 8, and a demolding assembly 5 is provided on the lower mold 2.

[0029] In the mold for processing CSW-CFST truss-chord composite beams of this utility model, when processing CSW-CFST truss-chord composite beams, the various components of the mold cooperate with each other to complete the forming and demolding of the composite beam. During the casting stage of the composite beam, the upper mold 1 and the lower mold 2 are precisely positioned by positioning holes and positioning pins 7 to avoid misalignment during the casting process. The pouring pipe 3 on the upper mold 1 is used to inject concrete and other casting materials to form the composite beam structure. The venting pipe groove 8 is responsible for venting the air in the mold to prevent the formation of air bubbles. The air unblocking pipe assembly 6 unblocks the venting pipe groove 8.

[0030] The demolding assembly 5 includes a first vertical rod 56 and a second vertical rod 57. Mounting slots are provided on both sides of the lower mold 2. The bottom ends of the first vertical rod 56 and the second vertical rod 57 are rotatably mounted in the mounting slots. A sprocket 58 is fixedly mounted on the outer wall of the bottom end of both the first vertical rod 56 and the second vertical rod 57. A chain belt 59 is provided on the outer wall of the sprocket 58. A second bevel gear 510 is fixedly mounted on the outer wall of the top end of the first vertical rod 56. A first threaded post 511 is fixedly mounted on the top end of the first vertical rod 56. A first ejector post 52 is threaded onto the outer wall of the first threaded post 511. A second threaded post 512 is fixedly mounted on the top end of the second vertical rod 57. A second ejector post 512 is threaded onto the outer wall of the second threaded post 512. Limiting blocks are fixedly installed on both sides of the first and second top mold pillars 53 and 53. A driving block 51 is rotatably installed on the side wall of the lower mold 2. A threaded hole is opened on the outer wall of the driving block 51. A driving rod 54 is fixedly installed on the outer wall of the driving block 51. A first bevel gear 55 is fixedly installed on the other end of the driving rod 54. The first bevel gear 55 and the second bevel gear 510 are meshed together. A through groove is opened on the upper surface of the lower mold 2. A limiting groove is opened on the inner wall of the through groove. The first top mold pillar 52 and the second top mold pillar 53 are slidably connected to the inner wall of the through groove. The limiting block is slidably connected to the inner wall of the limiting groove. A limiting ring 513 is fixedly installed on the outer wall of the bottom end of the first threaded pillar 511 and the second threaded pillar 512.

[0031] In the mold for processing CSW-CFST truss-chord composite beams of this utility model, after the composite beam is cast and reaches the demolding strength, the motor is started because the threaded hole on the drive block 51 is threadedly connected to the output shaft of the motor. The rotation of the motor output shaft drives the drive block 51 to rotate. The drive block 51 then drives the first vertical rod 56 to rotate through the meshing of the first bevel gear 55 and the second bevel gear 510 on the outer wall. The sprocket 58 at the bottom of the first vertical rod 56 and the second vertical rod 57 are connected by a chain belt 59, so that the first vertical rod 56 drives the second vertical rod 57 to rotate synchronously. As the second vertical rod 57 rotates, the first threaded post 511 and the second threaded post 512 at its top rotate accordingly. Since the first top mold post 52 and the first threaded post 511, and the second top mold post 53 and the second threaded post 512 are all threadedly connected, under the threaded transmission, the first top mold post 52 and the second top mold post 53 slide upward along the inner wall of the through groove. The limiting blocks on both sides of the first top mold post 52 and the second top mold post 53 slide and cooperate with the limiting grooves on the inner wall of the through groove, playing a guiding and limiting role, ensuring vertical rise. As the first top mold post 52 and the second top mold post 53 rise, the combined beam is ejected from the lower mold 2, completing the automated demolding work.

[0032] The air duct assembly 6 includes an outer ring 63, which is fixedly installed on the inner wall of the air duct groove 8 by a bracket. An air duct rod 62 is slidably installed on the inner wall of the outer ring 63. A pressure plate 61 is fixedly installed at one end of the air duct rod 62. Springs 65 are fixedly installed on the outer walls of both ends of the pressure plate 61. Spring grooves 64 are opened on the outer walls of the upper mold 1 and the lower mold 2. The inner wall of the spring groove 64 is fixedly connected to the other end of the spring 65.

[0033] In the mold for processing CSW-CFST truss-chord composite beams described in this utility model, the outer ring 63 is securely installed on the inner wall of the venting pipe groove 8 by a bracket, providing a basic support and positioning frame for the entire unblocking assembly. When an external force is applied to the pressure plate 61, the pressure plate 61 is driven by the force to move the unblocking rod 62 fixedly connected to it. Since the unblocking rod 62 is slidably connected to the inner wall of the outer ring 63, the unblocking rod 62 can slide smoothly along the inner wall of the outer ring 63. At this time, the unblocking rod 62 will move towards the inside of the venting pipe groove 8, using its own structural characteristics to clean and unblock the concrete in the venting pipe groove 8. While the pressure plate 61 moves under force, the two ends of the outer wall are fixedly installed... The spring 65 is compressed. One end of the spring 65 is fixed to the pressure plate 61, and the other end is fixed to the inner wall of the spring groove 64 on the outer wall of the upper mold 1 and the lower mold 2. When the spring 65 is compressed, it stores elastic potential energy. When the external force is removed, the spring 65 releases the elastic potential energy, generating a reverse elastic force that pushes the pressure plate 61 to move towards the initial position, thereby driving the unblocking rod 62 back to its original state, preparing for the next unblocking operation. Through the elastic reset function of the spring 65, it is ensured that the unblocking rod 62 can automatically return to its original position after completing one unblocking operation, so that the entire unblocking air pipe assembly 6 can achieve repeated unblocking operations, effectively ensuring the unobstructed flow of the air pipe groove 8.

[0034] Working principle: After the concrete is poured and cooled in the mold, during demolding, the output shaft of the drive motor is installed into the threaded hole on the drive block 51 via a threaded installation. The drive motor is started, causing the drive block 51 to rotate. The drive block 51 drives the first bevel gear 55 via the drive rod 54. The first bevel gear 55 meshes with the second bevel gear 510, causing the first bevel gear 510 to rotate. The second bevel gear 510 drives the first vertical rod 56 to rotate, which in turn drives the first threaded column 511 to rotate. Simultaneously, the rotation of the first threaded column 511 causes the first top mold column 52 to move upwards. Simultaneously, the first vertical rod 56 drives the second vertical rod 57 to rotate via the sprocket 58 and chain belt 59. The second vertical rod 57 drives the second threaded column 512 to rotate, and the second threaded column 512 drives the second top mold column 53 to move upward, so that the first top mold column 52 and the second top mold column 53 move upward synchronously, separating the upper mold 1 from the lower mold 2 and completing the demolding. After demolding, the pressure plate 61 is pushed, and the pressure plate 61 drives the unblocking rod 62 to move on the inner wall of the outer ring 63. The unblocking rod 62 pushes the concrete in the venting pipe groove 8 to the outside of the venting pipe groove 8. At the same time, the pressure plate 61 squeezes the spring 65 to compress it.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mold for processing a CSW-CFST trussed chord composite beam, comprising: The upper mold (1) and the lower mold (2) are characterized in that the upper mold (1) and the lower mold (2) are provided with ventilation pipe grooves (8), ventilation pipe grooves (8) are provided with air-clearing pipe components (6), and the lower mold (2) is provided with demolding components (5). The demolding assembly (5) includes a first vertical rod (56) and a second vertical rod (57). The lower mold (2) has mounting grooves on both sides. A sprocket (58) is fixedly installed on the outer wall of the bottom end of the first vertical rod (56) and the outer wall of the bottom end of the second vertical rod (57). A chain belt (59) is provided on the outer wall of the sprocket (58). A second bevel gear (510) is fixedly installed on the outer wall of the top end of the first vertical rod (56). A first threaded post (511) is fixedly installed on the top end of the first vertical rod (56). A first top mold post (52) is threadedly installed on the outer wall of the first threaded post (511). A second threaded column (512) is fixedly installed on the top of the second vertical rod (57). A second top mold column (53) is threadedly installed on the outer wall of the second threaded column (512). Limiting blocks are fixedly installed on both sides of the first top mold column (52) and the second top mold column (53). A driving block (51) is rotatably installed on the side wall of the lower mold (2). A driving rod (54) is fixedly installed on the outer wall of the driving block (51). A first bevel gear (55) is fixedly installed at the other end of the driving rod (54). A through groove is opened on the upper surface of the lower mold (2). A limiting groove is opened on the inner wall of the through groove.

2. The mold for processing the CSW-CFST trussed chord combined beam according to claim 1, wherein, The bottom ends of the first vertical rod (56) and the second vertical rod (57) are rotatably installed in the mounting groove, and the outer wall of the drive block (51) is provided with threaded holes.

3. The mold for processing the CSW-CFST trussed chord combined beam according to claim 2, characterized in that, The first bevel gear (55) and the second bevel gear (510) are meshed together, and the first top mold post (52) and the second top mold post (53) are slidably connected to the inner wall of the through groove.

4. A mold for processing CSW-CFST truss-chord composite beams according to claim 3, characterized in that, The limiting block is slidably connected to the inner wall of the limiting groove, and a limiting ring (513) is fixedly installed on the outer wall of the bottom end of the first threaded column (511) and the second threaded column (512).

5. A mold for processing CSW-CFST truss-chord composite beams according to claim 1, characterized in that, A tie rod (4) is fixedly installed on the upper surface of the upper mold (1), a pouring pipe (3) is provided on the upper surface of the upper mold (1), a positioning hole is provided on the lower surface of the upper mold (1), and a positioning pin (7) is fixedly installed on the upper surface of the lower mold (2).

6. A mold for processing CSW-CFST truss-chord composite beams according to claim 1, characterized in that, The air duct assembly (6) includes an outer ring (63), which is fixedly installed on the inner wall of the air duct groove (8) by a bracket, and an air duct rod (62) is slidably installed on the inner wall of the outer ring (63).

7. A mold for processing CSW-CFST truss-chord composite beams according to claim 6, characterized in that, A pressure plate (61) is fixedly installed at one end of the unblocking rod (62), and springs (65) are fixedly installed on the outer walls at both ends of the pressure plate (61).

8. A mold for processing CSW-CFST truss-chord composite beams according to claim 1, characterized in that, Spring grooves (64) are provided on the outer walls of the upper mold (1) and the lower mold (2), and the inner wall of the spring groove (64) is fixedly connected to the other end of the spring (65).

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