Intelligent integrated injection molding device for steel skeleton pipeline joint

Abstract

The invention relates to an intelligent integrated injection molding device for a steel skeleton pipeline joint, and relates to the field of pipeline injection molding devices.The intelligent integrated injection molding device comprises a mold assembly, a mold power assembly, a material injection assembly and a feeding assembly, a mold cavity is formed in a mold, and the mold assembly is connected with the mold power assembly so that the mold assembly can be driven to conduct mold closing and mold dismounting operation; the feeding assembly can convey a steel framework to the position of the mold cavity, and the material injection assembly can inject materials into the mold cavity. A supporting assembly and a driving assembly are arranged on the mold assembly, the supporting assembly can extend into the mold cavity to support the steel framework, injection molding spaces are formed in the two sides of the steel framework, and the driving assembly can drive the supporting assembly to retract into the mold assembly, so that the supporting assembly and the mold assembly form the cavity wall of the mold cavity. The steel skeleton pipeline has the effects that dynamic supporting of the steel skeleton is achieved, it is guaranteed that the integrity of the plastic layer on the steel skeleton is better, and the sealing performance of the steel skeleton pipeline is improved.

Description

Technical Field

[0001] This application relates to the field of pipe injection molding equipment, and in particular to an intelligent integrated injection molding device for steel-framed pipe joints. Background Technology

[0002] Steel-reinforced pipes, due to their internal steel skeleton, possess high strength and rigidity, enabling them to withstand significant pressure. Therefore, they are widely used in gas pipeline projects, slurry pipes in environmental protection devices, and urban water supply and drainage systems. The structure of steel-reinforced pipes involves a plastic layer encasing the steel skeleton. Therefore, during injection molding, the steel skeleton must be supported within the mold cavity, leaving injection space between the steel skeleton and the inner and outer molds to ensure the plastic layer completely encapsulates the steel skeleton.

[0003] Reference Figure 1 The existing method of supporting the steel frame is to use plastic blocks 9 for support. Part of the plastic block 9 is inserted into the insertion hole on the steel frame 5, and the part of the plastic block protruding out of the steel frame 5 contacts the outer mold to form support for the steel frame 5. Then injection molding is performed, and the plastic block 9 is retained in the plastic layer as part of the plastic layer. However, this will lead to poor compatibility between the plastic block 9 and the subsequently injected injection plastic, resulting in weak adhesion and delamination, which in turn leads to poor sealing of the steel frame pipe joint. Summary of the Invention

[0004] To improve construction safety during the construction process, this application provides an intelligent integrated injection molding device for steel frame pipe joints.

[0005] The intelligent integrated injection molding device for steel-framed pipe joints provided in this application adopts the following technical solution: A smart integrated injection molding device for steel frame pipe joints includes a mold assembly, a mold power assembly, an injection assembly, and a feeding assembly. A mold cavity is formed inside the mold. The mold assembly is connected to the mold power assembly to drive the mold assembly to perform mold closing and mold opening operations. The feeding assembly can transport the steel frame to the mold cavity position. The injection assembly can inject the material into the mold cavity. The mold assembly is provided with a support component and a drive component. The support component can extend into the mold cavity to support the steel frame and form injection spaces on both sides of the steel frame. The drive component can drive the support component to contract inside the mold assembly so that the support component and the mold assembly form the cavity wall of the mold cavity.

[0006] By adopting the above technical solution, during the injection molding of the steel-framed pipe, the feeding component moves the steel frame to the mold cavity position. Then, the mold power component drives the mold assembly to perform the initial mold closing operation. Next, the drive component drives the support component to extend into the mold cavity to support the steel frame inside the mold cavity, forming an injection space. Then, the feeding component is moved out of the mold assembly, and the mold power component drives the mold assembly to perform the mold closing operation again. At this time, the steel frame is located inside the mold cavity, and then the mold cavity is injected. During the pressure holding process after the initial injection, the drive component drives the support component to retract into the mold, and the injected plastic fills the gap left by the support component, thereby completing the injection molding of the steel-framed pipe. Through the extension and retraction of the support component, dynamic support for the steel frame is achieved, ensuring better integrity of the plastic layer on the steel frame and improving the sealing performance of the steel-framed pipe.

[0007] Preferably, the mold assembly includes an inner mold, an outer mold, and a sealing plate. The inner mold is inserted into the outer mold, and the sealing plate can seal the ends of the inner mold and the outer mold to form a closed mold cavity. The support assembly is disposed on the outer mold so that it can be inserted into the mold cavity.

[0008] By adopting the above technical solution, the mold assembly, through its split design, facilitates assembly and disassembly, thereby improving production efficiency.

[0009] Preferably, the support components are in at least two sets to provide at least two support points for the steel frame within the mold cavity; The outer mold includes two outer mold bodies that are spliced ​​together. The support assembly includes two sets of support members, each of which corresponds to one of the outer mold bodies and is disposed on the outer mold body.

[0010] By adopting the above technical solution, the design of at least two sets of support components ensures stable support of the steel skeleton within the mold cavity, avoiding instability caused by single-point support, thereby improving the positional accuracy and molding quality of the steel skeleton during injection molding. Simultaneously, multi-point support effectively disperses stress, reduces the risk of steel skeleton deformation, and further enhances the overall performance of the pipe.

[0011] Preferably, the support member includes a support column, and the outer mold body has a sliding hole communicating with the mold cavity. The support column is slidably inserted into the sliding hole, and the support column can extend out of and retract into the sliding hole.

[0012] By adopting the above technical solution, the support column can be smoothly retracted after injection molding, effectively avoiding the problem of traditional plastic support blocks being difficult to remove, reducing defects inside the pipe, and improving the overall integrity and reliability of the product.

[0013] Preferably, there are multiple support columns, which are evenly arranged along the circumference of the steel frame, and each support column is arranged along the radial direction of the steel frame. The driving assembly includes driving components that correspond one-to-one with the support members. The driving components are connected to the plurality of support columns through transmission components so as to drive the plurality of support columns to slide.

[0014] By adopting the above technical solution, multiple support columns are evenly arranged circumferentially along the steel frame and radially, ensuring stable support of the steel frame within the mold cavity and avoiding deformation or displacement caused by uneven local stress. Simultaneously, the transmission connection design between the drive assembly and each support column enables synchronous driving of the extension and retraction of all support columns, ensuring the consistency and reliability of support actions, thereby improving the precision of the injection molding process and the quality of the finished product.

[0015] Preferably, the transmission component includes an active arc plate, and the outer mold body has a driving channel for the active arc plate to slide. The active arc plate can slide circumferentially along the driving channel with respect to the center of the steel frame cross section. The active arc plate has driving grooves that correspond one-to-one with the support columns. Each support column has a driving block that can slide in the driving groove, so that the circumferential sliding of the active arc plate can drive the radial sliding of the support column. The driving component can drive the active arc plate to slide.

[0016] By adopting the above technical solution, the driving component drives the active arc plate to slide in the driving channel. The driving arc plate uses the sliding of the driving block in the driving groove to drive the support column to extend and retract into the sliding groove. The cooperation between the driving groove and the driving block ensures the radial sliding accuracy of the support column, thereby improving the positional stability of the steel skeleton during the injection molding process.

[0017] Preferably, the driving component includes a linear driving mechanism, a driven tooth segment, and a driving tooth segment. The linear driving mechanism is fixedly mounted on the outer mold body, and the driving tooth segment is fixedly mounted on the linear driving mechanism to drive the driving tooth segment to slide linearly. The driven tooth segment is fixedly mounted on the driving arc plate and is arranged along the circumference of the driving arc plate. The driving tooth segment and the driven tooth segment can mesh.

[0018] By adopting the above technical solution, the linear drive mechanism can precisely control the movement of the drive arc plate, ensuring that the support column accurately extends into and retracts into the mold cavity during injection molding, thereby guaranteeing a uniform injection gap between the steel frame and the inner wall of the mold. The meshing design of the driving and driven tooth segments not only improves transmission efficiency but also enhances system stability, avoiding a decrease in precision due to mechanical wear. Furthermore, this design simplifies the drive system, reduces manufacturing costs, and simultaneously improves the reliability and service life of the equipment.

[0019] Preferably, the mold power assembly includes an inner mold drive, an outer mold drive, and a sealing plate drive. The inner mold drive is connected to the inner mold to drive the inner mold to move. The outer mold drive is connected to the outer mold to drive the outer mold to move. The sealing plate drive is connected to the sealing plate to drive the sealing plate to seal the ends of the inner mold and the outer mold.

[0020] By adopting the above technical solution, the automation level of mold closing and disassembly is improved by using the inner mold drive component to drive the inner mold, the outer mold drive component to drive the outer mold, and the sealing plate drive component to drive the sealing plate.

[0021] Preferably, the frame is provided with a rotating plate that can rotate in the horizontal plane, and the sealing plate drive and the feeding assembly are both disposed on the rotating plate. The rotating plate can drive the sealing plate drive and the feeding assembly to change positions. The feeding assembly includes a linear drive unit and a support roller. The linear drive unit is mounted on the rotating plate, and the support roller is mounted on the output shaft of the linear drive unit so that the steel skeleton can be mounted on the support roller. The support roller is fitted with a positioning ring that can restrict the sliding of the steel skeleton. The linear drive unit can move the steel skeleton to the mold cavity position.

[0022] By adopting the above technical solution, when feeding the steel frame, the linear drive unit drives the steel frame on the support roller to move to the mold cavity position. Then, the two outer mold bodies perform the initial mold closing operation, and the steel frame is supported by the support column. Then, the linear drive unit drives the support roller to pull out the steel frame. Then, the rotating plate rotates, and the sealing plate and support roller are reversed. Then, the inner mold is inserted into the steel frame, and the sealing plate seals the ends of the inner mold and the outer mold, completing the mold closing operation again. The automatic feeding of the steel frame improves the convenience of installing the steel frame into the mold structure.

[0023] Preferably, the support roller is rotatably connected to the linear drive unit, and a drive motor is fixedly mounted on the output shaft of the linear drive unit. The drive motor drives the support roller to rotate through a spur gear assembly. The support roller has a placement groove, and a support portion is formed within the placement groove. The support roller has a conical head within the placement groove, and a telescopic screw is fixedly installed at the bottom of the conical head. The telescopic screw passes through the support portion and is slidably connected to the support portion. A drive sleeve is rotatably connected to the support portion, and the telescopic screw passes through the drive sleeve and is threadedly connected to the drive sleeve. A rotary motor is fixedly installed at the end of the support roller, and the output shaft of the rotary motor extends into the placement groove. The end of the rotary motor extending into the placement groove is connected to the drive sleeve through a bevel gear structure, so that the rotary motor can drive the drive sleeve to rotate. The drive sleeve can drive the conical head to extend out of the placement groove and insert into the side pipe of the three-way steel frame.

[0024] By adopting the above technical solution, in the feeding of the three-way steel frame, the three-way steel frame is hung on the support roller. The side pipe of the three-way steel frame is in a free hanging state under the action of gravity. Then, the rotary motor drives the drive sleeve to rotate through the bevel gear structure. The drive sleeve drives the conical head to extend out of the placement groove and insert into the side pipe of the three-way steel frame. Then, the drive motor drives the support roller to rotate through the gear assembly, so that the side pipe of the three-way steel frame faces upward, which facilitates the adjustment of the steel frame state and improves the flexibility of the use of this device.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. During the injection molding of the steel skeleton pipe, the feeding component moves the steel skeleton to the mold cavity position. Then, the mold power component drives the mold component to perform the initial mold closing operation. Then, the drive component drives the support component to extend into the mold cavity to support the steel skeleton inside the mold cavity, forming an injection space. Then, the feeding component moves out of the mold component. Then, the mold power component drives the mold component to perform the mold closing operation again. At this time, the steel skeleton is located in the mold cavity. Then, the mold cavity is injected. During the holding pressure process after the initial injection, the drive component drives the support component to retract into the mold. The injected plastic fills the gap left by the support component, thereby completing the injection molding of the steel skeleton pipe. 2. The telescopic movement of the support components enables dynamic support for the steel frame, ensuring better integrity of the plastic layer on the steel frame and improving the sealing performance of the steel frame pipeline. The drive component, through the cooperation of the drive arc plate and transmission components, achieves precise telescopic movement of the support column, ensuring the stability of the steel frame position during injection molding, thereby improving the overall consistency of the pipeline and production yield. This device simplifies the injection molding process, reduces the need for additional support materials, lowers production costs, and improves production efficiency, making it more suitable for large-scale industrial production. 3. For feeding T-shaped steel frames, the T-shaped steel frame is hung on the support roller. The side pipe of the T-shaped steel frame is in a free hanging state under the action of gravity. Then, the rotary motor drives the drive sleeve to rotate through the bevel gear structure. The drive sleeve drives the conical head to extend out of the placement groove and insert into the side pipe of the T-shaped steel frame. Then, the drive motor drives the support roller to rotate through the gear assembly, so that the side pipe of the T-shaped steel frame faces upward, which facilitates the adjustment of the steel frame state. This device can feed both straight pipe joints and T-shaped joints, improving the flexibility of the device. Attached Figure Description

[0026] Figure 1 It is a structural diagram showing the combination of a steel frame and plastic blocks.

[0027] Figure 2 This is a structural schematic diagram of an intelligent integrated injection molding device for steel-framed pipe joints according to an embodiment of this application. Along Figure 1 A cross-sectional view along line AA in the middle.

[0028] Figure 3 It is an exploded view used to show the steel frame and the mold working together. Figure 2 Enlarged view of section A.

[0029] Figure 4 It is a structural diagram used to demonstrate the fit between the outer mold and the inner mold.

[0030] Figure 5 This is a structural diagram used to demonstrate the feeding component.

[0031] Figure 6 It is along Figure 5 A cross-sectional view along line AA in the middle.

[0032] Figure 7 yes Figure 6 Enlarged view of section B in the middle.

[0033] Figure 8 This is a structural diagram used to illustrate the placement slot.

[0034] Figure 9 It is along Figure 4 A cross-sectional view of the CC line.

[0035] Figure 10 It is along Figure 4 A cross-sectional view of the DD line.

[0036] Figure 11 This is a structural diagram used to illustrate the driver block.

[0037] Explanation of reference numerals in the attached drawings: 1. Mold assembly; 11. Inner mold; 111. Inner mold body; 12. Outer mold; 121. Outer mold body; 13. Sealing plate; 2. Mold power assembly; 21. Inner mold drive component; 211. First hydraulic cylinder; 22. Outer mold drive component; 221. Second hydraulic cylinder; 23. Sealing plate drive component; 231. Third hydraulic cylinder; 3. Injection assembly; 4. Feeding assembly; 41. Linear drive unit; 411. Fourth hydraulic cylinder; 42. Support roller; 43. Drive motor; 44. Spur gear assembly; 451. Placement groove; 452. Support part; 453. Conical head; 454. Extension 455. Retracting screw; 456. Drive sleeve; 457. Rotary motor; 458. Bevel gear structure; 459. Guide rod; 400. Positioning ring; 5. Steel frame; 6. Support assembly; 61. Support component; 611. Support column; 612. Sliding hole; 7. Drive assembly; 71. Drive component; 711. Linear drive mechanism; 7111. Linear reciprocating hydraulic cylinder; 712. Driven gear section; 713. Driven gear section; 714. Sliding port; 72. Transmission component; 721. Driven arc plate; 722. Drive channel; 723. Drive groove; 724. Drive block; 8. Rotating plate; 9. Plastic block. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 2-11 This application will be described in further detail.

[0039] This application discloses an intelligent integrated injection molding device for steel frame pipe joints.

[0040] Reference Figure 2 , Figure 3 A smart integrated injection molding device for steel frame pipe joints includes a mold assembly 1, a mold power assembly 2, an injection assembly 3, and a feeding assembly 4. In this embodiment, a three-way steel frame 5 joint is taken as an example. A mold cavity is formed inside the mold assembly 1. The mold assembly 1 is connected to the mold power assembly 2 so as to drive the mold assembly 1 to perform mold closing and mold opening operations. The feeding assembly 4 can transport the steel frame 5 to the mold cavity position, and the injection assembly 3 can inject the material into the mold cavity.

[0041] Reference Figure 2 , Figure 3In this embodiment, the mold assembly 1 includes an inner mold 11, an outer mold 12, and a sealing plate 13. The inner mold 11 includes two inner mold bodies 111 arranged horizontally and vertically. The outer mold 12 includes two outer mold bodies 121 spliced ​​together. There are two sealing plates 13, which correspond to the three openings of the pipe joint of the steel frame 5. The two sealing plates 13 are fixedly connected to the two inner mold bodies 111. When the inner mold 11 is inserted into the steel frame 5, the two sealing plates 13 abut against the end wall of the outer mold body 121, so that a closed mold cavity is formed inside the mold assembly 1. The injection assembly 3 is a screw extruder. One outer mold body 121 is fixedly installed at the discharge end of the screw extruder. The screw extruder injects plastic into the mold cavity through the injection hole opened on the outer mold body 121 to realize the injection molding of the pipe joint.

[0042] Reference Figure 2 , Figure 3 One of the outer mold bodies 121 is fixedly mounted on the injection assembly 3. The mold power assembly 2 includes an inner mold drive component 21, an outer mold drive component 22, and a sealing plate drive component 23. The inner mold drive component 21 consists of two first hydraulic cylinders 211, each corresponding to an inner mold body 111. The cylinder body of the first hydraulic cylinder 211 is fixedly mounted on the frame, and the piston rod of the first hydraulic cylinder 211 is fixedly connected to the inner mold body 111, thereby achieving mechanical drive for the movement of the two inner mold bodies 111. The outer mold drive component 22 includes a second hydraulic cylinder 221, the cylinder body of which is fixedly mounted on the frame, and the piston rod of the second hydraulic cylinder 221 is fixedly connected to the outer mold body 121, thereby achieving mechanical drive for the movement of the outer mold body 121. The sealing plate drive component 23 includes a third hydraulic cylinder 231, the cylinder body of which is fixedly mounted on the frame, and the piston rod of the third hydraulic cylinder 231 is fixedly connected to the sealing plate 13, thereby achieving mechanical drive for the movement of the sealing plate 13.

[0043] Reference Figure 3 , Figure 4 The outer mold body 121 is provided with a support component 6 and a drive component 7. The support component 6 can extend into the mold cavity to support the steel frame 5 and form injection spaces on both sides of the steel frame 5. The drive component 7 can drive the support component 6 to shrink the mold assembly 1 so that the support component 6 and the mold assembly 1 form the cavity wall of the mold cavity.

[0044] During injection molding of the steel frame 5 pipe, the loading assembly 4 moves the steel frame 5 to the mold cavity position. Then, the first hydraulic cylinder 211 drives the outer mold body 121 onto another outer mold body 121 to enclose the steel frame 5, completing the initial mold closing operation. Then, the drive assembly 7 drives the support assembly 6 to extend into the mold cavity to support the steel frame 5 inside the mold cavity, forming an injection space. Then, the loading assembly 4 is moved out of the mold assembly 1. Then, the second hydraulic cylinder 221 drives the inner mold body 111 to insert into the steel frame 5, and the third hydraulic cylinder 231 drives... The dynamic sealing cap abuts against the end of the outer mold body 121 to complete the mold closing operation again. At this time, the steel frame 5 is located in the mold cavity, and the screw extruder injects plastic into the mold cavity. During the pressure holding process after the initial injection, the drive component 7 drives the support component 6 to retract into the mold, and the injected plastic fills the gap left by the support component 6, thereby completing the injection molding of the steel frame 5 pipe. Through the extension and retraction of the support component 6, dynamic support for the steel frame 5 is achieved, ensuring better integrity of the plastic layer on the steel frame 5 and improving the sealing performance of the steel frame 5 pipe.

[0045] Reference Figure 5 , Figure 6 The frame is equipped with a rotating plate 8 that can rotate in a horizontal plane. The rotating plate 8 is driven by an external motor. The feeding assembly 4 includes a linear drive unit 41 and a support roller 42. In this embodiment, the linear drive unit 41 is a fourth hydraulic cylinder 411. The fourth hydraulic cylinder 411 and the third hydraulic cylinder 231 are both fixedly mounted on the rotating plate 8 and are spaced 180° apart along the circumference of the rotating plate 8. The positions of the third hydraulic cylinder 231 and the fourth hydraulic cylinder 411 are reversed by rotating the rotating plate 8 by 180°. The support roller 42 is rotatably sleeved on the output shaft of the fourth hydraulic cylinder 411, so that the steel frame 5 can be hung on the support roller 42. The support roller 42 is threaded with a positioning ring 46 that can restrict the sliding of the steel frame 5. The end of the steel frame 5 abuts against the positioning ring 46 to complete the positioning of the steel frame 5. The fourth hydraulic cylinder 411 can move the steel frame 5 to the position of the mold cavity.

[0046] Reference Figure 6 , Figure 7 and Figure 8A drive motor 43 is fixedly mounted on the output shaft of the fourth hydraulic cylinder 411. The drive motor 43 drives the support roller 42 to rotate through the spur gear assembly 44. The support roller 42 has a placement groove 451 and a support part 452 is formed in the placement groove 451. The support roller 42 has a conical head 453 in the placement groove 451. A telescopic screw 454 is fixedly mounted on the bottom of the conical head 453. The telescopic screw 454 is arranged along the radial direction of the support roller 42, so that the conical head 453 slides along the radial direction of the support roller 42. The maximum diameter of the conical head 453 is the same as the inner diameter of the side pipe of the steel frame 5. A guide rod 458 is fixedly provided at the bottom of the conical head 453, which is arranged in the same direction as the telescopic screw 454. The guide rod 458 slides through the support part 452 to restrict the rotation of the conical head 453. The telescopic screw 454 passes through the support part 452 and is slidably connected to the support part 452. A drive sleeve 455 is rotatably connected to the support part 452. The telescopic screw 454 passes through the drive sleeve 455 and is threadedly connected to the drive sleeve 455. A rotary motor 456 is fixedly provided at the end of the support roller 42. The output shaft of the rotary motor 456 extends into the placement groove 451. The end of the output shaft of the rotary motor 456 that extends into the placement groove 451 is connected to the drive sleeve 455 through a bevel gear structure 457, so that the rotary motor 456 can drive the drive sleeve 455 to rotate. The drive sleeve 455 can drive the conical head 453 to extend out of the placement groove 451 and insert into the side pipe of the three-way steel frame 5.

[0047] In the feeding of the three-way steel frame 5, the three-way steel frame 5 is hung on the support roller 42. The side pipe of the three-way steel frame 5 is in a free hanging state under the action of gravity. Then, the rotary motor 456 drives the drive sleeve 455 to rotate through the bevel gear structure 457. The drive sleeve 455 drives the conical head 453 to extend out of the placement groove 451 and insert into the side pipe of the three-way steel frame 5. Then, the drive motor 43 drives the support roller 42 to rotate through the gear assembly, so that the side pipe of the three-way steel frame 5 faces upward, which facilitates the adjustment of the state of the steel frame 5 and improves the flexibility of the use of this device.

[0048] The fourth hydraulic cylinder 411 drives the steel frame 5 on the support roller 42 to move to the mold cavity position. Then, the two outer mold bodies 121 perform the initial mold closing operation and support the steel frame 5 through the support column 611. Then, the fourth hydraulic cylinder 411 drives the support roller 42 to pull out the steel frame 5. Then, the rotating plate 8 rotates to switch the positions of the sealing plate 13 and the support roller 42. Then, the inner mold 11 inserts the steel frame 5, and the sealing plate 13 seals the ends of the inner mold 11 and the outer mold 12, completing the mold closing operation again. The automatic feeding of the steel frame 5 improves the convenience of installing the steel frame 5 into the mold structure.

[0049] Reference Figure 4 , Figure 9In this embodiment, each set of support components 6 includes two sets of support members 61, and each set of drive components 7 includes two drive members 71. The drive members 71 correspond one-to-one with the support members 61. The two sets of support members 61 are opposite each other on two outer mold bodies 121, and the drive members 71 are disposed on the corresponding outer mold bodies 121. In this embodiment, the support members 61 include multiple support pillars 611. This embodiment uses ten as an example. The ten support pillars 611 are evenly arranged along the circumference of the mold cavity. The outer mold body 121 has sliding holes 612 that correspond one-to-one with the support pillars 611. The support pillars 611 are slidably disposed within the sliding holes 612. The drive members 71 and the support pillars 611 are connected by a transmission member 72.

[0050] Reference Figure 4 , Figure 10 and Figure 11 In this embodiment, the transmission component 72 includes an active arc plate 721. The center of the active arc plate 721 is concentric with the center of the cross-section of the pipe joint of the steel frame 5. Each outer mold body 121 is provided with a driving channel 722 corresponding to the active arc plate 721. The center of the driving channel 722 is concentric with the center of the cross-section of the steel frame 5. The active arc plate 721 is slidably connected in the driving channel 722. The length of the driving channel 722 is greater than the length of the active arc plate 721, so that the active arc plate 721 slides in the driving channel 722. The driving channel 722 is connected to each sliding hole 612 to ensure that the end of the support column 611 is inserted into the driving channel 722. The active arc plate 721 has a drive groove 723 on the side wall opposite to the support column 611, which corresponds to the support column 611. The extension direction of the drive groove 723 forms an acute angle with the radial direction of the active arc plate 721. Each support column 611 is fixedly provided with a drive block 724, which is inserted into the corresponding drive groove 723 and slides with the drive groove 723.

[0051] Reference Figure 9 In this embodiment, the driving component 71 includes a linear driving mechanism 711, a driven gear segment 712, and a driving gear segment 713. The linear driving mechanism 711 is a linear reciprocating hydraulic cylinder 7111. In other embodiments, it can also be a linear reciprocating air cylinder, a linear motor, etc. The linear reciprocating hydraulic cylinder 7111 is fixedly installed on the outer mold body 121. The driving gear segment 713 is fixedly installed on the output shaft of the linear reciprocating hydraulic cylinder 7111. The driven gear segment 712 is fixedly installed on the driving arc plate 721 and is arranged along the circumference of the driving arc plate 721. The outer mold body 121 is provided with a sliding port 714 communicating with the driving channel 722. The sliding port 714 extends through the outer wall of the outer mold body 121. The driven gear segment 712 extends out of the outer mold body 121 through the sliding port 714 and slides back and forth in the sliding port 714. The driving gear segment 713 and the driven gear segment 712 can mesh and connect.

[0052] When supporting the steel skeleton 5 inside the mold cavity, the linear reciprocating hydraulic cylinder 7111 drives the active tooth segment 713 to slide. The active tooth segment 713, through meshing with the driven tooth segment 712, drives the active arc plate 721 to slide in the drive channel 722. The active arc plate 721 drives the drive groove 723 to slide, which in turn causes the drive block 724 to slide in the drive groove 723. The drive block 724 drives the support column 611 to slide in the sliding hole 612 and extend out of the sliding hole 612 and into the mold cavity. The support columns 611 on the two outer mold bodies 121 simultaneously abut against the steel skeleton 5, thereby supporting the steel skeleton 5 and forming injection spaces on both sides of the steel skeleton 5. Multiple support columns 611 are evenly arranged along the circumference of the steel skeleton 5 and arranged radially, which can ensure the stable support of the steel skeleton 5 in the mold cavity and avoid deformation or displacement caused by uneven local stress. Meanwhile, the connection design of the active arc plate 721 between the linear reciprocating hydraulic cylinder 7111 and each support column 611 enables the synchronous driving of all support columns 611 to extend and retract, ensuring the consistency and reliability of the support action, thereby improving the precision of the injection molding process and the quality of the finished product.

[0053] After the steel frame 5 is supported, molten plastic is injected into the mold cavity through the injection port on the mold. During the holding pressure process after the initial injection, the linear reciprocating hydraulic cylinder 7111 drives the active gear segment 713 to move in the opposite direction, causing the active arc plate 721 to move the support column 611 into the sliding hole 612, and then injection is carried out through the injection port to fill the space occupied by the support column 611, ensuring the quality of the injection molding of the steel frame 5 pipe joint. After the injection-molded steel frame 5 pipe joint has cooled, the mold is opened and the material is unloaded. This completes the production of the steel frame pipe joint.

[0054] The implementation principle of the intelligent integrated injection molding device for steel frame pipe joints in this application embodiment is as follows: When the steel frame 5 pipe is injection molded, the tee steel frame 5 is hung on the support roller 42. The side pipe of the tee steel frame 5 is in a free hanging state under the action of gravity. Then, the rotary motor 456 drives the drive sleeve 455 to rotate through the bevel gear structure 457. The drive sleeve 455 drives the conical head 453 to extend out of the placement groove 451 and insert into the side pipe of the tee steel frame 5. Then, the drive motor 43 drives the support roller 42 to rotate through the spur gear assembly 44, so that the side pipe of the tee steel frame 5 faces upward.

[0055] The fourth hydraulic cylinder 411 drives the steel frame 5 on the support roller 42 to move to the mold cavity position. Then, the two outer mold bodies 121 perform the initial mold closing operation and support the steel frame 5 through the support column 611. Then, the fourth hydraulic cylinder 411 drives the support roller 42 to pull out the steel frame 5. Then, the rotating plate 8 rotates to switch the positions of the sealing plate 13 and the support roller 42. Then, the inner mold 11 inserts into the steel frame 5, and the sealing plate 13 seals the ends of the inner mold 11 and the outer mold 12, completing the mold closing operation again.

[0056] The screw extruder injects plastic into the mold cavity. During the pressure holding process after the initial injection, the linear reciprocating hydraulic cylinder 7111 drives the active tooth segment 713 to move in the opposite direction. This causes the drive arc plate to move the support column 611 into the sliding hole 612, and then the plastic is injected through the injection port to fill the space occupied by the support column 611, ensuring the quality of the injection molding of the steel frame 5 pipe joint. After the injection-molded steel frame 5 pipe joint has cooled, the mold is opened and the material is unloaded. The extension and retraction of the support column 611 achieves dynamic support for the steel frame 5, ensuring better integrity of the plastic layer on the steel frame 5 and improving the sealing performance of the steel frame 5 pipe.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel skeleton pipeline joint intelligent integrated injection molding device, characterized in that: The utility model relates to a kind of injection molding machine, including mould assembly (1), mould power assembly (2), injection assembly (3) and feeding assembly (4), the cavity is formed in the mould, the mould assembly (1) is connected with the mould power assembly (2), to enable the mould assembly (1) to drive and carry out mould closing and disassembly operation, the feeding assembly (4) can be transported to cavity position by steel skeleton (5), and the injection assembly (3) can be injected into material into cavity; The mould assembly (1) is provided with support assembly (6) and drive assembly (7), the support assembly (6) can be inserted into cavity, to form the support to steel skeleton (5), and injection space is formed on the both sides of the steel skeleton (5), and the drive assembly (7) can drive the support assembly (6) to contract inside the mould assembly (1), so that the support assembly (6) and the mould assembly (1) form the cavity wall of cavity.

2. The steel skeleton pipe joint intelligent integrated injection molding device according to claim 1, characterized in that: The mould assembly (1) includes inner mould (11), outer mould (12) and sealing plate (13), the inner mould (11) is inserted into the outer mould (12), and the sealing plate (13) can block the end of the inner mould (11) and the outer mould (12), to form closed cavity, and the support assembly (6) is arranged on the outer mould (12) to be inserted into cavity.

3. The steel skeleton pipe joint intelligent integrated injection molding device according to claim 2, characterized in that: The support assembly (6) is at least two groups, to provide at least two support points for the steel skeleton (5) in cavity; The outer mould (12) includes two outer mould bodies (121) spliced with each other, the support assembly (6) includes two groups of support pieces (61), the support piece (61) corresponds to the outer mould body (121) one by one and is arranged on the outer mould body (121).

4. The steel skeleton pipe joint intelligent integrated injection molding device according to claim 3, characterized in that: The support piece (61) includes support column (611), the outer mould body (121) is provided with sliding hole (612) communicated with cavity, the support column (611) is slidably connected in the sliding hole (612), and the support column (611) can be extended and retracted in the sliding hole (612).

5. The steel skeleton pipe joint intelligent integrated injection molding device according to claim 4, characterized in that: The number of the support column (611) is multiple, and multiple support columns (611) are evenly arranged along the circumference of the steel skeleton (5), and each support column (611) is arranged along the radial direction of the steel skeleton (5); The drive assembly (7) includes drive piece (71) corresponding to the support piece (61), and the drive piece (71) is connected with multiple support columns (611) through transmission piece (72), so as to drive multiple support columns (611) to slide.

6. The steel skeleton pipe joint intelligent integrated injection molding device according to claim 5, characterized in that: The transmission member (72) comprises a driving arc plate (721), a driving channel (722) is formed in the outer die body (121) and used for sliding of the driving arc plate (721), the driving arc plate (721) can slide along the driving channel (722) with the center of the section of the steel framework (5) as the center, the driving arc plate (721) is provided with a driving groove (723) corresponding to each support column (611), each support column (611) is provided with a driving block (724) capable of sliding in the driving groove (723), so that the circumferential sliding of the driving arc plate (721) can drive the radial sliding of the support column (611), and the driving member (71) can drive the sliding of the driving arc plate (721).

7. The steel skeleton pipe joint intelligent integrated injection molding device according to claim 6, characterized in that: The driving member (71) comprises a linear driving mechanism (711), a driven tooth segment (712) and a driving tooth segment (713), the linear driving mechanism (711) is fixedly arranged on the outer die body (121), the driving tooth segment (713) is fixedly arranged on the linear driving mechanism (711) and can slide linearly, the driven tooth segment (712) is fixedly arranged on the driving arc plate (721) and arranged along the circumference of the driving arc plate (721), and the driving tooth segment (713) is capable of meshing with the driven tooth segment (712).

8. The intelligent integrated injection molding device for steel skeleton pipe joint according to claim 2, characterized in that: The mold power assembly (2) comprises an inner mold (11) driving member (71), an outer mold (12) driving member (71) and a sealing plate (13) driving member (71), the inner mold (11) driving member (71) is connected with the inner mold (11) and can drive the inner mold (11) to move, the outer mold (12) driving member (71) is connected with the outer mold (12) and can drive the outer mold (12) to move, and the sealing plate (13) driving member (71) is connected with the sealing plate (13) and can drive the sealing plate (13) to block the end portions of the inner mold (11) and the outer mold (12).

9. The steel skeleton pipe joint intelligent integrated injection molding device according to claim 8, characterized in that: The frame body is provided with a rotating plate (8) capable of rotating in a horizontal plane, the sealing plate (13) driving member (71) and the feeding assembly (4) are arranged on the rotating plate (8), and the rotating plate (8) can drive the sealing plate (13) driving member (71) and the feeding assembly (4) to rotate. The feeding assembly (4) comprises a linear driving unit (41) and a supporting roller (42), the linear driving unit (41) is arranged on the rotating plate (8), the supporting roller (42) is arranged on an output shaft of the linear driving unit (41), so that the steel framework (5) can be hung on the supporting roller (42), a positioning ring (46) capable of limiting the sliding of the steel framework (5) is arranged on the supporting roller (42), and the linear driving unit (41) can move the steel framework (5) to a mold cavity position.

10. The steel skeleton pipe joint intelligent integrated injection molding device according to claim 9, characterized in that: The support roller (42) is rotationally connected with the linear drive unit (41), a driving motor (43) is fixed on the output shaft of the linear drive unit (41), and the driving motor (43) drives the support roller (42) to rotate through a straight gear assembly (44); A placing groove (451) is formed in the support roller (42), and a support part (452) is formed in the placing groove (451); a conical head (453) is arranged in the placing groove (451); a telescopic screw rod (454) is fixed to the bottom of the conical head (453); the telescopic screw rod (454) passes through the support part (452) and is in sliding connection with the support part (452); a driving sleeve (455) is rotationally connected to the support part (452); the telescopic screw rod (454) passes through the driving sleeve (455) and is in threaded connection with the driving sleeve (455); a rotary motor (456) is fixed to the end of the support roller (42); the output shaft of the rotary motor (456) extends into the placing groove (451); the output shaft of the rotary motor (456) is connected with the driving sleeve (455) through a bevel gear structure (457) at the end extending into the placing groove (451), so that the rotary motor (456) can drive the driving sleeve (455) to rotate; and the driving sleeve (455) can drive the conical head (453) to extend out of the placing groove (451) and be inserted into the side connecting pipe of the three-way steel framework (5).

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