A de-coring and pressure testing integrated machine for manufacturing high-pressure flexible hose by using recycled plastic

Abstract

The application relates to the technical field of high-pressure hose production, in particular to a core-removing and pressure-testing integrated machine for manufacturing high-pressure hoses by using recycled plastic, which comprises fixing frames, a workbench is rotationally connected to the sides of the two fixing frames, a first motor is installed on one side of one of the two fixing frames, the output shaft of the first motor is fixedly connected with the workbench, an installation sleeve is fixedly connected to the inner side of the workbench, a through hole is formed in the upper end of the installation sleeve, a pipe manufacturing mechanism is installed at the lower end of the workbench, a steel wire is arranged on the inner side of the installation sleeve, the steel wire is more closely attached to the plastic roll film through the cooperation of a second arc-shaped clasp ring and a first arc-shaped clasp ring, and the thread of the steel wire is matched with the thread groove through the rotation of the thread groove, so that the continuous winding and coating treatment of the steel wire and the plastic film are realized; and the core-removing and inner wall pressure detection of the hose are realized through the cooperation of the air pump and the arc-shaped sweeping plate.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high-pressure hose production, in particular to a core-removing and pressure-testing integrated machine for manufacturing high-pressure hoses from recycled plastics. BACKGROUND

[0002] In the production process of high-pressure hoses, the traditional process usually adopts a step-by-step operation mode, including steel wire winding, plastic film coating, coating treatment, core removal and pressure testing and the like, which often needs to rely on a large amount of manual operation, and is not only low in production efficiency, but also prone to unstable product quality due to human factors. In addition, the raw materials used in the traditional process are mostly new plastic materials, which are high in cost, and the recycled plastic resources are not fully utilized, which cannot meet the needs of green manufacturing and sustainable development.

[0003] In the production of traditional high-pressure hoses, the adhesion strength of the steel wire and the plastic film mainly depends on simple mechanical winding, lacks effective coating treatment and inner wall strengthening means, and the pressure resistance, wear resistance and corrosion resistance of the hose are insufficient. At the same time, the coating liquid in the traditional process is not uniformly sprayed, and problems such as missing coating or air bubbles are prone to occur, which affects the sealing performance and service life of the hose. In addition, the core-removing and pressure-testing processes usually need to be completed by separate equipment, which increases the complexity and cost of the production line, and it is difficult to realize real-time quality detection, resulting in a high rate of defective products. In terms of environmental protection, the acid gas generated by the pickling steel wire and the volatile organic compounds in the coating liquid in the traditional process cannot be effectively treated, which easily pollutes the environment. Therefore, we propose a core-removing and pressure-testing integrated machine for manufacturing high-pressure hoses from recycled plastics. SUMMARY

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the application provides a core-removing and pressure-testing integrated machine for manufacturing high-pressure hoses from recycled plastics.

[0005] The technical scheme adopted by the application to solve the technical problems is: a core-removing and pressure-testing integrated machine for manufacturing high-pressure hoses from recycled plastics, comprising a fixed frame, two groups of fixed frames are rotatably connected on one side of the fixed frame, a first motor is installed on one side of one of the two groups of fixed frames, the output shaft of the first motor is fixedly connected with the workbench, an installation sleeve is fixedly connected to the inner side of the workbench, a through hole is formed in the upper end of the installation sleeve, a pipe manufacturing mechanism is installed at the lower end of the workbench, and a steel wire is arranged in the inner side of the installation sleeve.

[0006] Preferably, the pipe making mechanism comprises a first fixed plate, both groups of the first fixed plate are fixedly connected with the workbench, the side close to each other of both groups of the first fixed plate is provided with a first electric telescopic rod, the output shaft of the first electric telescopic rod is fixedly connected with a mounting bracket, the inner side of the mounting bracket is rotatably connected with two groups of symmetrical gears through an axis, the lower end of one of the two groups of mounting brackets is provided with a second motor, the output shaft of the second motor is fixedly connected with a gear, the upper end of one of the gears is rotatably connected with a plastic film roll through an axis, and the plastic film roll is wrapped outside the steel wire.

[0007] Preferably, the upper end of the other mounting bracket of the two groups of mounting brackets is fixedly connected with a first coating liquid tank, the upper end of the first coating liquid tank is provided with a third motor, the output shaft of the third motor is fixedly connected with a first rotating shaft, the inner side of the first coating liquid tank is rotatably connected with the first rotating shaft, the outer side of the first rotating shaft is fixedly connected with a first blade, the lower end of the first blade is fixedly connected with a C-shaped rotating shaft, and the other end of the C-shaped rotating shaft is fixedly connected with a gear through an axis.

[0008] Preferably, the outer side of the C-shaped rotating shaft is rotatably connected with a connecting rod, the inner side of the connecting rod is rotatably connected with a first sliding rod, the outer side of the first sliding rod is slidably connected with a spraying pipe, the outer side of the spraying pipe is fixedly connected with the first coating liquid tank, the other end of the spraying pipe is provided with a shower head, and the outer side of the spraying pipe is provided with a feeding hole in the inner side of the first coating liquid tank.

[0009] Preferably, the side close to each other of both groups of the mounting brackets is fixedly connected with a first arc-shaped clamping ring, the cross section of the first arc-shaped clamping ring is designed as a H-shaped structure, the outer side of the first arc-shaped clamping ring is slidably connected with a second arc-shaped clamping ring, the outer wall of the second arc-shaped clamping ring is provided with two groups of symmetrical clamping teeth, the outer wall clamping teeth of the second arc-shaped clamping ring is engaged with the gear, and the inner wall of the second arc-shaped clamping ring is provided with a threaded groove.

[0010] Preferably, the pipe making mechanism further comprises a first sleeve fixedly connected with a mounting sleeve, the upper end of the first sleeve is provided with a through hole, the outer side of the first sleeve is provided with a plurality of cleaning grooves, the lower end of the first sleeve is fixedly connected with a second sleeve, the inner side of the second sleeve is fixedly connected with a second fixed plate, the lower end of the second fixed plate is provided with a fourth motor, the output shaft of the fourth motor is fixedly connected with a T-shaped rotating shaft, the outer side of the T-shaped rotating shaft is rotatably connected with a third sleeve, the upper end of the third sleeve is provided with a wave-shaped annular groove, the outer side of the third sleeve is fixedly connected with two groups of symmetrical L-shaped sliding rods, the outer side of the L-shaped sliding rod is slidably connected with a fixed pipe, the upper end of the fixed pipe is fixedly connected with the second sleeve, the inner side of the fixed pipe is provided with a first spring, one end of the first spring is fixedly connected with the fixed pipe, and the other end of the first spring is fixedly connected with the L-shaped sliding rod.

[0011] Preferably, a second sliding rod is fixedly connected to the lower end of the T-shaped rotating shaft. An L-shaped sliding rod passes through the outer side of the second sliding rod. Two sets of symmetrical locking strips are fixedly connected below the L-shaped sliding rod on the outer side of the second sliding rod. A mounting block is slidably connected to the outer side of the locking strips. The upper end of the mounting block is rotatably connected to a third sleeve via a telescopic rod. A limit block is fixedly connected to the lower end of the locking strips. Four sets of second electric telescopic rods are installed on the outer side of the mounting block. An arc-shaped sweeping plate is fixedly connected to the output shaft of the second electric telescopic rod. A second coating liquid tank is provided at the lower end of the mounting block. Four sets of atomizing nozzles are installed at the upper end of the second coating liquid tank. The arc-shaped sweeping plate passes through the outer side of the atomizing nozzles. The outer side of the atomizing nozzles is fixedly connected to the arc-shaped sweeping plate. A second spring is provided on the inner side of the mounting block. One end of the second spring is fixedly connected to the second sliding rod, and the other end of the second spring is fixedly connected to the mounting block.

[0012] Preferably, an air pump is installed at the upper end of the second fixing plate, and two sets of symmetrical exhaust pipes are fixedly connected to the output port of the air pump. The outer side of the exhaust pipe passes through the second fixing plate and the outer side of the exhaust pipe passes through the second sleeve.

[0013] Preferably, the inlet of the air pump is fixedly connected to a first suction pipe, an activated carbon adsorption box is provided on the outside of the first suction pipe, a fixed sleeve is fixedly connected to the upper end of the activated carbon adsorption box, the outside of the fixed sleeve passes through the first sleeve, a second blade is rotatably connected to the upper end of the fixed sleeve via a bracket, a rotating plate is rotatably connected to the upper end of the second blade via a rotating shaft, and L-shaped brushes are fixedly connected to both ends of the rotating plate.

[0014] Preferably, a fixed connecting rod is fixedly connected to the outer side of the output shaft of the first electric telescopic rod, a second suction pipe is fixedly connected to the inner side of the fixed connecting rod, a collection cylinder is slidably connected to the outer side of the second suction pipe, the outer side of the collection cylinder is fixedly connected to the first sleeve, a third electric telescopic rod is installed at one end of the second suction pipe through a bracket, a cleaning brush is fixedly connected to the output shaft of the third electric telescopic rod, and a collection tank is fixedly connected to the outer side of the third electric telescopic rod.

[0015] Compared with the prior art, the present invention provides an integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastics, which has the following beneficial effects:

[0016] 1. By cooperating with the first and second arc-shaped retaining rings, the threaded groove can be wound around the hose, making the steel wire and plastic film adhere more tightly. The rotation of the threaded groove and the texture of the steel wire cooperate to achieve continuous winding and coating of the steel wire and plastic film, avoiding the problem of frequent machine downtime in traditional production and further improving production efficiency. The arc-shaped sweeping plate opens the inner wall of the hose and sprays the coating liquid to ensure that the plastic film and steel wire are tightly bonded, improving the overall strength and pressure resistance of the hose. The uniform spraying of the coating liquid and the inner wall treatment further enhance the hose's corrosion resistance, wear resistance and sealing performance.

[0017] 2. The equipment, through the cooperation of an air pump and an arc-shaped sweeping plate, enables rapid core removal and internal wall pressure detection of the hose, ensuring the dimensional stability and pressure resistance of the hose. The pressure testing function can detect the quality of the hose in real time during production, reducing the defect rate. The equipment is specifically designed for recycled plastics, and through optimized processes and coating treatments, it improves the performance of recycled plastics, enabling them to meet the production requirements of high-pressure hoses and promoting resource recycling. Through the cooperation of the activated carbon adsorption box and the air pump, it can effectively absorb and treat acidic gases generated during pickling, reducing environmental pollution.

[0018] 3. The C-shaped rotating shaft and the spraying tube work together to achieve uniform stirring and pressurized spraying of the coating liquid, thereby achieving uniform coverage and improved corrosion resistance of the outer wall coating of the plastic roll film. The L-shaped brush and the collection cylinder work together to clean impurities on the surface of the steel wire and collect them, avoiding the diffusion of impurities during the production process. The airflow of the air pump achieves rapid drying of the inner wall coating, reducing energy consumption in traditional drying processes. Through uniform coating treatment and efficient core removal pressure testing, the strength, pressure resistance and service life of the hose are improved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastics, as proposed in this invention.

[0020] Figure 2 This is a cross-sectional schematic diagram of the overall structure of an integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastic, as proposed in this invention.

[0021] Figure 3 This is a cross-sectional schematic diagram of the overall structure of the integrated core-removing and pressure-testing mechanism for high-pressure hoses made from recycled plastics, as proposed in this invention.

[0022] Figure 4 This is a cross-sectional schematic diagram of the overall structure of the integrated core-removing and pressure-testing mechanism for high-pressure hoses made from recycled plastics, as proposed in this invention.

[0023] Figure 5This invention proposes an integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastics. Figure 4 Enlarged schematic diagram of section A in the middle;

[0024] Figure 6 This invention proposes an integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastics. Figure 4 Enlarged schematic diagram of section B;

[0025] Figure 7 This invention proposes an integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastics. Figure 4 Enlarged schematic diagram of section C in the middle;

[0026] Figure 8 This invention presents a cross-sectional view of a core-removing and pressure-testing integrated hose mechanism for high-pressure hoses made from recycled plastics. Figure 1 ;

[0027] Figure 9 This invention presents a cross-sectional view of a core-removing and pressure-testing integrated hose mechanism for high-pressure hoses made from recycled plastics. Figure 2 .

[0028] In the diagram: 1. Fixed frame; 2. First motor; 3. Workbench; 4. Mounting sleeve; 5. Tube-making mechanism; 51. First fixed plate; 52. First electric telescopic rod; 53. Mounting frame; 54. Gear; 55. Second motor; 56. Plastic roll film; 57. Third motor; 58. First coating liquid tank; 59. C-shaped rotating shaft; 510. First sliding rod; 511. Spray pipe; 512. Feed hole; 513. First rotating shaft; 514. First blade; 515. First arc-shaped retaining ring; 516. Second arc-shaped retaining ring; 517. Threaded groove; 518. First sleeve; 519. Cleaning groove; 520. Second sleeve; 521. Second fixed plate; 522. T-shaped rotating shaft; 523. Third sleeve; 5 24. L-shaped slide bar; 525. Fixed pipe; 526. First spring; 527. Second slide bar; 528. Locking strip; 529. Second electric telescopic rod; 530. Arc-shaped sweeping plate; 531. Second coating liquid tank; 532. Atomizing nozzle; 533. Air pump; 534. First suction pipe; 535. Activated carbon adsorption box; 536. Fixed sleeve; 537. Second blade; 538. Rotating plate; 539. L-shaped brush; 540. Exhaust pipe; 541. Fourth motor; 542. Fixed connecting rod; 543. Second suction pipe; 544. Collection cylinder; 545. Third electric telescopic rod; 546. Cleaning brush; 547. Collection tank; 548. Mounting block; 549. Second spring; 6. Steel wire. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Please see Figures 1-9 A core-removing and pressure-testing integrated machine for making high-pressure hoses using recycled plastic includes a fixed frame 1. Two sets of fixed frames 1 are rotatably connected to a worktable 3 on their adjacent sides. A first motor 2 is installed on one side of one set of fixed frames 1. The output shaft of the first motor 2 is fixedly connected to the worktable 3. An installation sleeve 4 is fixedly connected to the inner side of the worktable 3. A through hole is opened at the upper end of the installation sleeve 4. A tube-making mechanism 5 is installed at the lower end of the worktable 3. A steel wire 6 is provided on the inner side of the installation sleeve 4.

[0031] In this embodiment, the tube-making mechanism 5 includes a first fixing plate 51. Both sets of first fixing plates 51 are fixedly connected to the workbench 3. A first electric telescopic rod 52 is installed on the side of the two sets of first fixing plates 51 that are close to each other. The output shaft of the first electric telescopic rod 52 is fixedly connected to a mounting bracket 53. The inner side of the mounting bracket 53 is rotatably connected to two sets of symmetrical gears 54 through a rotating shaft. A second motor 55 is installed at the lower end of one of the two sets of mounting brackets 53. The output shaft of the second motor 55 is fixedly connected to the gear 54. A plastic roll film 56 is installed at the upper end of one set of gears 54 through a rotating shaft. The plastic roll film 56 is wrapped around the outside of the steel wire 6.

[0032] Specifically, the tube-making mechanism 5 drives the mounting frame 53 to move via the first electric telescopic rod 52, which in turn drives the gear 54 to cooperate with the second motor 55 to achieve automated winding of the plastic film 56 onto the steel wire 6. The gear 54 engages with the second arc-shaped retaining ring 516, and pushes the wound steel wire 6 downward through the threaded groove 517 to ensure a tight bond between the plastic film and the steel wire 6.

[0033] In this embodiment, the upper end of the other set of mounting brackets 53 is fixedly connected to a first coating liquid tank 58. A third motor 57 is mounted on the upper end of the first coating liquid tank 58. The output shaft of the third motor 57 is fixedly connected to a first rotating shaft 513. The first rotating shaft 513 is rotatably connected to the inner side of the first coating liquid tank 58. A first blade 514 is fixedly connected to the outer side of the first rotating shaft 513. A C-shaped rotating shaft 59 is fixedly connected to the lower end of the first blade 514. The other end of the C-shaped rotating shaft 59 is fixedly connected to a set of gears 54 through a rotating shaft.

[0034] Specifically, the third motor 57 drives the first rotating shaft 513 and the first blade 514 to stir the coating liquid in the first coating liquid tank 58, and achieves uniform mixing and synchronous spraying of the coating liquid through the C-shaped rotating shaft 59 and the linkage gear 54. The C-shaped rotating shaft 59 drives the first slide rod 510 to slide in the spray tube 511 through the connecting rod, and pressurizes the coating liquid to the outside of the plastic roll film 56.

[0035] In this embodiment, a connecting rod is rotatably connected to the outer side of the C-shaped rotating shaft 59, and a first sliding rod 510 is rotatably connected to the inner side of the connecting rod. A spray pipe 511 is slidably connected to the outer side of the first sliding rod 510. The outer side of the spray pipe 511 is fixedly connected to the first coating liquid tank 58. A spray head is installed at the other end of the spray pipe 511. An inlet hole 512 is opened inside the first coating liquid tank 58 on the outer side of the spray pipe 511.

[0036] Specifically, the C-shaped rotating shaft 59 converts the rotational power of the third motor 57 into the reciprocating motion of the connecting rod, which pushes the first slide bar 510 to slide inside the spray tube 511, draws in the coating liquid through the feed hole 512, pressurizes it, and sprays it out from the spray head, ensuring that the coating liquid evenly covers the surface of the plastic roll film 56.

[0037] In this embodiment, a first arc-shaped retaining ring 515 is fixedly connected to one side of each of the two sets of mounting brackets 53 that are close to each other. The cross-section of the first arc-shaped retaining ring 515 is I-shaped. A second arc-shaped retaining ring 516 is slidably connected to the outer side of the first arc-shaped retaining ring 515. The outer wall of the second arc-shaped retaining ring 516 is provided with two sets of symmetrical retaining teeth. The retaining teeth on the outer wall of the second arc-shaped retaining ring 516 mesh with the gear 54. The inner wall of the second arc-shaped retaining ring 516 is provided with a threaded groove 517.

[0038] Specifically, the first arc-shaped retaining ring 515 fixes the steel wire 6 through its I-shaped design, and the second arc-shaped retaining ring 516 engages with the gear 54 through its outer wall retaining teeth, while the inner wall threaded groove 517 guides the wound steel wire 6 to move downward, thereby achieving synchronous winding and positioning of the plastic film and the steel wire 6.

[0039] In this embodiment, the tube-making mechanism 5 further includes a first sleeve 518 fixedly connected to the mounting sleeve 4. The upper end of the first sleeve 518 has a through hole, and the outer side of the first sleeve 518 has multiple sets of cleaning grooves 519. The lower end of the first sleeve 518 is fixedly connected to a second sleeve 520, and the inner side of the second sleeve 520 is fixedly connected to a second fixing plate 521. A fourth motor 541 is mounted on the lower end of the second fixing plate 521, and the output shaft of the fourth motor 541 is fixedly connected to a T-shaped rotating shaft 522. The outer side of the T-shaped rotating shaft 522... A third sleeve 523 is rotatably connected to the side. The upper end of the third sleeve 523 is provided with a wavy annular groove. Two sets of symmetrical L-shaped slide rods 524 are fixedly connected to the outer side of the third sleeve 523. A fixed tube 525 is slidably connected to the outer side of the L-shaped slide rods 524. The upper end of the fixed tube 525 is fixedly connected to the second sleeve 520. A first spring 526 is provided on the inner side of the fixed tube 525. One end of the first spring 526 is fixedly connected to the fixed tube 525, and the other end of the first spring 526 is fixedly connected to the L-shaped slide rod 524.

[0040] Specifically, the first sleeve 518 cleans impurities on the surface of the steel wire 6 through the cleaning groove 519 and the L-shaped brush 539; the fourth motor 541 drives the T-shaped rotating shaft 522 to rotate, and drives the third sleeve 523 to move up and down through the wave-shaped annular groove and the L-shaped slide bar 524, so as to realize the dynamic spraying of the inner wall coating and pressure detection.

[0041] In this embodiment, a second slide rod 527 is fixedly connected to the lower end of the T-shaped rotating shaft 522. An L-shaped slide rod 524 passes through the outer side of the second slide rod 527. Two sets of symmetrical locking strips 528 are fixedly connected below the L-shaped slide rod 524 on the outer side of the second slide rod 527. A mounting block 548 is slidably connected to the outer side of the locking strip 528. The upper end of the mounting block 548 is rotatably connected to the third sleeve 523 via a telescopic rod. A limit block is fixedly connected to the lower end of the locking strip 528. Four sets of second electric telescopic rods 529 are installed on the outer side of the mounting block 548. The output shaft of the telescopic rod 529 is fixedly connected to an arc-shaped sweeping plate 530. A second coating liquid tank 531 is provided at the lower end of the mounting block 548. Four sets of atomizing nozzles 532 are installed at the upper end of the second coating liquid tank 531. The outer side of the atomizing nozzle 532 passes through the arc-shaped sweeping plate 530 and is fixedly connected to the outer side of the arc-shaped sweeping plate 530. A second spring 549 is provided on the inner side of the mounting block 548. One end of the second spring 549 is fixedly connected to the second slide rod 527, and the other end of the second spring 549 is fixedly connected to the mounting block 548.

[0042] Specifically, the T-shaped rotating shaft 522 drives the mounting block 548 to rotate via the locking strip 528 and the second sliding rod 527. The second electric telescopic rod 529 drives the arc-shaped sweeping plate 530 to open the inner wall of the hose. The atomizing nozzle 532 sprays the coating liquid from the second coating liquid tank 531 and resets the mounting block 548 via the second spring 549, ensuring that the inner wall coating is evenly covered and tightly adhered.

[0043] In this embodiment, an air pump 533 is installed on the upper end of the second fixing plate 521. The output port of the air pump 533 is fixedly connected to two sets of symmetrical exhaust pipes 540. The outer side of the exhaust pipe 540 passes through the second fixing plate 521, and the outer side of the exhaust pipe 540 passes through the second sleeve 520.

[0044] Specifically, the air pump 533 delivers airflow to the inner wall of the hose through the exhaust pipe 540 to accelerate the curing of the coating.

[0045] In this embodiment, the inlet of the air pump 533 is fixedly connected to a first suction pipe 534. An activated carbon adsorption box 535 is provided on the outside of the first suction pipe 534. A fixing sleeve 536 is fixedly connected to the upper end of the activated carbon adsorption box 535. The outer side of the fixing sleeve 536 passes through the first sleeve 518. A second blade 537 is rotatably connected to the upper end of the fixing sleeve 536 through a bracket. A rotating plate 538 is rotatably connected to the upper end of the second blade 537 through a rotating shaft. L-shaped brushes 539 are fixedly connected to both ends of the rotating plate 538.

[0046] Specifically, the harmful gases generated by acid washing are purified by the first exhaust pipe 534 and the activated carbon adsorption box 535 to achieve environmentally friendly emissions. The second blade 537 drives the rotating plate 538 and the L-shaped brush 539 to rotate under the airflow, cleaning the acid washing impurities remaining on the surface of the steel wire 6, and collecting the impurities into the collection cylinder 544 through the cleaning tank 519.

[0047] In this embodiment, a fixed connecting rod 542 is fixedly connected to the outer side of the output shaft of the first electric telescopic rod 52, a second suction pipe 543 is fixedly connected to the inner side of the fixed connecting rod 542, a collection cylinder 544 is slidably connected to the outer side of the second suction pipe 543, the outer side of the collection cylinder 544 is fixedly connected to the first sleeve 518, a third electric telescopic rod 545 is installed at one end of the second suction pipe 543 through a bracket, a cleaning brush 546 is fixedly connected to the output shaft of the third electric telescopic rod 545, and a collection tank 547 is fixedly connected to the outer side of the third electric telescopic rod 545.

[0048] Specifically, the fixed connecting rod 542 draws the impurities collected by the L-shaped brush 539 into the collection cylinder 544 through the second suction pipe 543, and the third electric telescopic rod 545 drives the cleaning brush 546 to push the impurities into the collection tank 547, thereby realizing the centralized processing and recycling of impurities.

[0049] Working principle: During use, the first motor 2, installed on one side of the fixed frame 1, is started. The first motor 2 drives the worktable 3 to adjust its angle, placing the steel wire 6 inside the mounting sleeve 4 and wrapping it around the outside of the first sleeve 518. The steel wire 6 extends downwards around the first sleeve 518 and the second sleeve 520, passing through the gap between the mounting sleeve 4 and the second sleeve 520 and aligning with the plastic film roll 56. Then, the first motor 2 is started to vertically reset the worktable 3. The first electric telescopic rod 52, installed inside the first fixed plate 51, is started. The output shaft of the first electric telescopic rod 52 drives the first arc-shaped retaining ring 515 to move closer to the center through the mounting frame 53, so that the two sets of first arc-shaped retaining rings 515 fit together to form a circle to clamp the steel wire 6. The second motor 55 is started, driving the plastic film roll 56 to rotate, so that the plastic film roll 56 wraps around the outside of the mounting sleeve 4. The second motor 55 drives the gear 54 to rotate, and the gear 54 interacts with the second arc-shaped retaining ring 516. The engagement causes the second arc-shaped retaining ring 516 to rotate under the clamping of the first arc-shaped retaining ring 515. As the second arc-shaped retaining ring 516 rotates, it moves the steel wire 6 wound around the plastic film 56 downwards via the threaded groove 517. This activates the third motor 57, which drives the first rotating shaft 513 to rotate within the first coating liquid tank 58. The first rotating shaft 513 then drives the first blade 514 to rotate, stirring the coating liquid within the first coating liquid tank 58. The C-shaped rotating shaft 59 is driven to rotate, and the C-shaped rotating shaft 59 drives another set of gears 54 to rotate, thereby causing another set of second arc-shaped retaining rings 516 to rotate. When the C-shaped rotating shaft 59 rotates, it pulls the first sliding rod 510 to slide inside the spray tube 511 through the connecting rod. The coating liquid enters the spray tube 511 through the feed hole 512. The first sliding rod 510 slides into the spray tube 511 to increase the pressure, causing the spray tube 511 to spray outward, thereby applying the coating liquid to the outside of the plastic roll film 56.

[0050] The fourth motor 541 is started. The output shaft of the fourth motor 541 drives the T-shaped rotating shaft 522 to rotate. The T-shaped rotating shaft 522 drives the mounting block 548 to rotate through the locking strip 528 and the second sliding rod 527. The mounting block 548 drives the second electric telescopic rod 529 to rotate. The output shaft of the second electric telescopic rod 529 drives the arc-shaped sweeping plates 530 to open, so that the four sets of arc-shaped sweeping plates 530 open the inner wall of the hose, making the fit between the plastic roll film 56 and the mounting sleeve 4 tighter. Under the rotation of the fourth motor 541, the arc-shaped sweeping plates 530 on the inner wall of the hose are more even. The atomizing nozzle 532 is started, so that the coating liquid in the second coating liquid tank 531 is sprayed onto the inner wall of the hose. Under the rotation of the arc-shaped sweeping plates 530, the coating is evenly applied to the inner wall of the hose. When the T-shaped rotating shaft 522 rotates, it is at the upper end of the third sleeve 523. The wavy groove rotates, and the drop within the wavy groove causes the third sleeve 523 to move downwards. The third sleeve 523 slides inside the fixed tube 525 via the L-shaped slide rod 524, pulling open the first spring 526. The elastic force of the first spring 526 causes the L-shaped slide rod 524 to return to its original position. The third sleeve 523 presses down on the mounting block 548, causing the mounting block 548 to move downwards along the retaining strip 528. The mounting block 548 drives the second electric telescopic rod 529 to move downwards, pulling open the second spring 549. This allows the arc-shaped sweeping plate 530 to move up and down while rotating, thus comprehensively coating the inner wall of the hose and accelerating the removal of the hose core. With the support of the second electric telescopic rod 529, the pressure on the inner wall of the hose is detected. The second spring 549 uses its own elastic force to allow the mounting block 548 to return to its original position.

[0051] The air pump 533 at the upper end of the second fixed plate 521 is started. The inlet of the air pump 533 draws in airflow through the first suction pipe 534. Before use, the steel wire 6 is acid-washed to remove some impurities. The acidic gas in the mounting sleeve 4 is absorbed through the first suction pipe 534, then adsorbed by the activated carbon adsorption box 535, and then the airflow is output through the exhaust pipe 540. The output airflow quickly dries the inner wall of the hose, curing the coating on the inner wall and making the coating liquid more evenly distributed. When the airflow is input into the first suction pipe 534, the airflow enters the fixed sleeve 536 and drives the second blade 537 to rotate through the air pressure. The second blade 537 drives the rotating plate 538 to rotate. The rotating plate 538 drives the second blade 537 to rotate. The L-shaped brush 539 rotates and passes through the gap in the cleaning groove 519 to clean the outside of the steel wire 6. Some of the impurities remaining on the steel wire 6 are collected by the L-shaped design of the brush 539. After the L-shaped brush 539 is aligned with the collection cylinder 544, the output shaft of the first electric telescopic rod 52 drives the fixed connecting rod 542 to move. The fixed connecting rod 542 drives the second suction pipe 543 to slide into the collection cylinder 544. The second suction pipe 543 sucks the impurities collected by the L-shaped brush 539 into the collection cylinder 544 through airflow. The third electric telescopic rod 545 is activated to drive the cleaning brush 546 to move inside the collection cylinder 544, pushing the impurities inside the collection cylinder 544 into the collection tank 547 for centralized collection.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A core-removing and pressure-testing integrated machine for making high-pressure hoses using recycled plastic, comprising a fixing frame (1), characterized in that: Two sets of fixed frames (1) are rotatably connected to a worktable (3) on their adjacent sides. A first motor (2) is installed on one side of one set of fixed frames (1). The output shaft of the first motor (2) is fixedly connected to the worktable (3). An installation sleeve (4) is fixedly connected to the inner side of the worktable (3). A through hole is opened at the upper end of the installation sleeve (4). A tube-making mechanism (5) is installed at the lower end of the worktable (3). A steel wire (6) is provided on the inner side of the installation sleeve (4). The tube-making mechanism (5) includes a first fixing plate (51). Both sets of the first fixing plates (51) are connected to the worktable (3). The first electric telescopic rod (52) is installed on the side of the two sets of first fixed plates (51) that are close to each other. The output shaft of the first electric telescopic rod (52) is fixedly connected to the mounting bracket (53). The inner side of the mounting bracket (53) is rotatably connected to two sets of symmetrical gears (54) through a rotating shaft. The lower end of one of the two sets of mounting brackets (53) is equipped with a second motor (55). The output shaft of the second motor (55) is fixedly connected to the gear (54). The upper end of one set of gears (54) is equipped with a plastic roll film (56) through a rotating shaft. The plastic roll film (56) is wrapped around the outside of the steel wire (6).

2. The integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastic as described in claim 1, characterized in that: The upper end of the other set of mounting brackets (53) of the two sets of mounting brackets (53) is fixedly connected to a first coating liquid tank (58). A third motor (57) is installed on the upper end of the first coating liquid tank (58). The output shaft of the third motor (57) is fixedly connected to a first rotating shaft (513). The first rotating shaft (513) is rotatably connected to the inner side of the first coating liquid tank (58). A first blade (514) is fixedly connected to the outer side of the first rotating shaft (513). A C-shaped rotating shaft (59) is fixedly connected to the lower end of the first blade (514). The other end of the C-shaped rotating shaft (59) is fixedly connected to a set of gears (54) through the rotating shaft.

3. The integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastic according to claim 2, characterized in that: A connecting rod is rotatably connected to the outer side of the C-shaped rotating shaft (59), and a first sliding rod (510) is rotatably connected to the inner side of the connecting rod. A spray pipe (511) is slidably connected to the outer side of the first sliding rod (510). The outer side of the spray pipe (511) is fixedly connected to the first coating liquid tank (58). A spray head is installed at the other end of the spray pipe (511). An inlet hole (512) is opened inside the first coating liquid tank (58) on the outer side of the spray pipe (511).

4. The integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastic as described in claim 1, characterized in that: Both sets of mounting brackets (53) are fixedly connected to a first arc-shaped retaining ring (515) on the side closest to each other. The cross-section of the first arc-shaped retaining ring (515) is I-shaped. A second arc-shaped retaining ring (516) is slidably connected to the outer side of the first arc-shaped retaining ring (515). The outer wall of the second arc-shaped retaining ring (516) is provided with two sets of symmetrical retaining teeth. The retaining teeth on the outer wall of the second arc-shaped retaining ring (516) mesh with the gear (54). The inner wall of the second arc-shaped retaining ring (516) is provided with a threaded groove (517).

5. The integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastic according to claim 1, characterized in that: The tube-making mechanism (5) further includes a first sleeve (518) fixedly connected to the mounting sleeve (4). The upper end of the first sleeve (518) is provided with a through hole. Multiple cleaning grooves (519) are provided on the outer side of the first sleeve (518). A second sleeve (520) is fixedly connected to the lower end of the first sleeve (518). A second fixing plate (521) is fixedly connected to the inner side of the second sleeve (520). A fourth motor (541) is installed at the lower end of the second fixing plate (521). A T-shaped rotating shaft (522) is fixedly connected to the output shaft of the fourth motor (541). The outer side of the T-shaped rotating shaft (522) is... A third sleeve (523) is rotatably connected. The upper end of the third sleeve (523) is provided with a wave-shaped annular groove. Two sets of symmetrical L-shaped slide rods (524) are fixedly connected to the outer side of the third sleeve (523). A fixed tube (525) is slidably connected to the outer side of the L-shaped slide rod (524). The upper end of the fixed tube (525) is fixedly connected to the second sleeve (520). A first spring (526) is provided on the inner side of the fixed tube (525). One end of the first spring (526) is fixedly connected to the fixed tube (525), and the other end of the first spring (526) is fixedly connected to the L-shaped slide rod (524).

6. The integrated core-removing and pressure-testing machine for making high-pressure hoses using recycled plastic as described in claim 5, characterized in that: The lower end of the T-shaped rotating shaft (522) is fixedly connected to a second sliding rod (527). An L-shaped sliding rod (524) passes through the outer side of the second sliding rod (527). Two sets of symmetrical locking strips (528) are fixedly connected below the L-shaped sliding rod (524) on the outer side of the second sliding rod (527). A mounting block (548) is slidably connected to the outer side of the locking strip (528). The upper end of the mounting block (548) is rotatably connected to the third sleeve (523) via a telescopic rod. A limit block is fixedly connected to the lower end of the locking strip (528). Four sets of second electric telescopic rods (529) are installed on the outer side of the mounting block (548). The output shaft of 529 is fixedly connected to an arc-shaped sweeping plate (530). The lower end of the mounting block (548) is provided with a second coating liquid tank (531). The upper end of the second coating liquid tank (531) is equipped with four sets of atomizing nozzles (532). The outer side of the atomizing nozzle (532) passes through the arc-shaped sweeping plate (530). The outer side of the atomizing nozzle (532) is fixedly connected to the arc-shaped sweeping plate (530). The inner side of the mounting block (548) is provided with a second spring (549). One end of the second spring (549) is fixedly connected to the second slide rod (527), and the other end of the second spring (549) is fixedly connected to the mounting block (548).

7. A core-removing and pressure-testing integrated machine for making high-pressure hoses using recycled plastics according to claim 6, characterized in that: An air pump (533) is installed on the upper end of the second fixing plate (521). The output port of the air pump (533) is fixedly connected to two sets of symmetrical exhaust pipes (540). The outer side of the exhaust pipe (540) passes through the second fixing plate (521), and the outer side of the exhaust pipe (540) passes through the second sleeve (520).

8. A core-removing and pressure-testing integrated machine for making high-pressure hoses using recycled plastics according to claim 7, characterized in that: The inlet of the air pump (533) is fixedly connected to a first suction pipe (534). An activated carbon adsorption box (535) is provided on the outside of the first suction pipe (534). A fixed sleeve (536) is fixedly connected to the upper end of the activated carbon adsorption box (535). The outer side of the fixed sleeve (536) passes through the first sleeve (518). A second blade (537) is rotatably connected to the upper end of the fixed sleeve (536) through a bracket. A rotating plate (538) is rotatably connected to the upper end of the second blade (537) through a rotating shaft. An L-shaped brush (539) is fixedly connected to both ends of the rotating plate (538).

9. A core-removing and pressure-testing integrated machine for making high-pressure hoses using recycled plastics according to claim 1, characterized in that: A fixed connecting rod (542) is fixedly connected to the outer side of the output shaft of the first electric telescopic rod (52). A second suction pipe (543) is fixedly connected to the inner side of the fixed connecting rod (542). A collection cylinder (544) is slidably connected to the outer side of the second suction pipe (543). The outer side of the collection cylinder (544) is fixedly connected to the first sleeve (518). A third electric telescopic rod (545) is installed at one end of the second suction pipe (543) through a bracket. A cleaning brush (546) is fixedly connected to the output shaft of the third electric telescopic rod (545). A collection tank (547) is fixedly connected to the outer side of the third electric telescopic rod (545).

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