A foaming infusion system and a box foaming line

Abstract

The present application relates to the technical field of foaming pouring, and specifically discloses a foaming pouring system, which comprises a mold box and a pouring pipeline, the mold box comprises an upper mold and a lower mold, the top of the upper mold is provided with a profiling component, the profiling component comprises a pressing plate and a pressing rod connected with the pressing plate, the pressing plate is provided with a liquid inlet hole and a gas outlet hole, and the pouring pipeline is connected with the pressing plate through the liquid inlet hole. The foaming pouring system provided by the present application can break larger bubbles by using a vibrator to vibrate for a long time, so that the liquid and the bubbles are mixed more uniformly, the gas in the liquid overflows, the volume is reduced, the liquid level is lowered, the vibrator drives the pressing plate to move downward by a small distance, the pressing plate is then unlocked and rises by a set distance, so that the bubbles of the foaming liquid are filled more uniformly and tend to be consistent in size, and meanwhile, the liquid filling amount can be more accurate, so that the filling amount is sufficient, the top surface is flat, and the length, width and height of the formed sample meet the standard.

Description

Technical Field

[0001] This invention relates to the field of foaming and filling technology, specifically to a foaming and filling system and a foaming line for a housing. Background Technology

[0002] Foaming injection is a process that involves injecting foam materials (usually polyurethane, polystyrene, etc.) into a relatively enclosed space, allowing them to expand and solidify. This process can be used to manufacture lightweight materials with certain strength and thermal and sound insulation properties. In foaming injection, ensuring the liquid completely fills the mold box is crucial in this field.

[0003] In existing technology, to make the foaming liquid in the mold box fill more evenly and with a more uniform size, and to make the liquid filling more compact, a vibrator is installed outside the mold box during the casting process. However, the vibration of the vibrator gradually weakens as the vibration wave propagates, and for larger mold boxes, the effective range of the vibrator is limited. The top surface of the liquid is usually an area that the vibration wave cannot effectively reach. If the vibrator is installed directly on the top surface, the initial distance between the vibrator and the liquid surface will increase unnecessary energy consumption. Summary of the Invention

[0004] The purpose of this invention is to provide a foaming injection system to overcome the above-mentioned shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A foaming injection system includes a mold box and a casting pipe. The mold box includes an upper mold and a lower mold. A forming component is provided on the top of the upper mold. The forming component includes a pressure plate and a pressure rod connected thereto. The pressure plate has a liquid inlet and a vent. The casting pipe is connected to the pressure plate through the liquid inlet. The pressure rod is provided with a step-by-step limiting component and an unlocking component. The step-by-step limiting component includes a driving component connected to the top of the pressure rod. A vibration defoaming component is provided on the forming component. The vibration defoaming component includes a vibrator that abuts against the pressure plate and a telescopic component. The telescopic component retracts step by step as the pressure plate moves. After the vibrator strikes the foaming liquid at a set time, the liquid volume decreases and sinks, forcing the pressure plate to move down a set distance, thereby helping the pressure rod to unlock. The pressure rod then moves up a set distance under the action of the driving component, completing the step-by-step upward movement.

[0007] Furthermore, the step-by-step limiting component also includes a hollow rod, the inner wall of which is provided with multiple limiting plates, and the outer end of the pressure rod is fixedly connected with multiple elastic elements. The end of each elastic element is fixedly connected with an arc-shaped block, the top surface of which is a planar structure and abuts against the corresponding limiting plate.

[0008] Furthermore, the unlocking component includes a traction component, a sliding ring is provided between the pressure rod and the pressure plate, a movable groove is provided at the bottom of the pressure rod, a reset component is provided between the inner wall of the movable groove and the sliding ring, the pressure plate and the arc-shaped block are connected by the traction component, the foaming liquid level drops a set distance under continuous vibration, causing the pressure plate to also drop to a set distance under the action of the vibrator, pulling the arc-shaped block to move and unlock it.

[0009] Furthermore, a first magnetic ring is fixedly connected to the top surface of the sliding ring, and a second magnetic ring is fixedly connected to the inner top surface of the movable groove. The first magnetic ring and the second magnetic ring attract each other initially. When the volume of the foaming liquid decreases, the pressure plate is subjected to the vibration force of the vibrator, which drives the first magnetic ring and the second magnetic ring to separate, thus helping the arc block to unlock.

[0010] Furthermore, the telescopic component includes a contact rod and a fixed rod. The contact rod slides inside the fixed rod, and the fixed rod has multiple slots inside. A retaining ring is fixedly connected to the outer end of the contact rod, and the retaining ring engages with the corresponding slot.

[0011] Furthermore, the vibration defoaming component also includes a linkage plate, with a fixing block fixedly connected to the end of the linkage plate. The vibrator is detachably connected to the fixing block, and the vibrator is electrically connected to a controller. The bottom of the contact rod is fixedly connected to the linkage plate.

[0012] Furthermore, it also includes a workbench, the top of which is fixedly connected to a support frame, and the tops of the hollow rod and the fixed rod are both fixedly connected to the outer end of the support frame.

[0013] Furthermore, the spacing between the plurality of limiting plates is the same as the spacing between the plurality of slots, and the outer side of the retaining ring is made of an arc-shaped elastic material.

[0014] A foaming line for a housing, using the aforementioned foaming and grouting system, includes a pouring device. The pouring device includes an infusion pump, one end of which is connected to a pouring pipe, and the other end is fixedly connected to a mixing tank. The mixing tank is filled with foaming liquid, and the mixing tank is also equipped with an air inflation mechanism and a mixing mechanism.

[0015] The foaming injection system provided by the present invention has the following beneficial effects in the above technical solution:

[0016] By vibrating the vibrator for an extended period, larger air bubbles are broken up using vibration waves, resulting in a more uniform mixture of liquid and air bubbles, and making the bubble sizes more consistent. At this point, gas escapes from the liquid, reducing its volume and causing the liquid level to drop. This causes the vibrator to push the pressure plate down a short distance, after which the pressure plate is unlocked and rises a set distance. The solenoid valve then opens, continuing the liquid injection. This process is repeated, resulting in more uniform and consistent bubble filling in the foaming liquid. It also ensures more accurate liquid filling, preventing insufficient filling that could lead to an uneven top surface or non-standard dimensions of the molded sample. By performing vibration pouring in stages, the vibrator's effectiveness is fully utilized, ensuring that its effective vibration zone covers the corresponding liquid area. This not only fills any missing liquid but also prevents incomplete filling of the mold box.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0018] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall external structure provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the mold box cracking structure provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic cross-sectional view of the mold box provided in an embodiment of the present invention;

[0023] Figure 4 This is a top view of the linkage plate structure provided in an embodiment of the present invention;

[0024] Figure 5 This is a top view of the cracked structure of the step-by-step limiting component provided in an embodiment of the present invention;

[0025] Figure 6 Provided for embodiments of the present invention Figure 5 A magnified structural diagram at point A;

[0026] Figure 7This is a schematic diagram of the fractured structure of the step-by-step limiting component provided in an embodiment of the present invention;

[0027] Figure 8 Provided for embodiments of the present invention Figure 7 A magnified structural diagram at point B;

[0028] Figure 9 This is a schematic diagram of the cracking structure of the telescopic component provided in an embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the overall structure of the foaming line for the housing provided in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Mold box; 11. Upper mold; 12. Lower mold; 13. Sealing strip; 14. Sealing groove; 15. Limiting strip; 2. Casting pipe; 3. Forming components; 31. Pressure plate; 32. Pressure rod; 33. Vent hole; 4. Step-by-step limiting components; 41. Driving component; 42. Hollow rod; 43. Limiting plate; 44. Elastic component; 441. Telescopic block; 442. Hollow block; 443. Telescopic spring; 45. Arc block; 5. Unlocking component; 51. Traction component; 52. Sliding ring; 53. Movable groove; 54. First magnetic ring; 55. Second magnetic ring; 6. Vibration defoaming component; 61. Vibrator; 62. Telescopic component; 621. Contact rod; 622. Fixed rod; 623. Slot; 624. Snap ring; 63. Linkage plate; 64. Fixed block; 7. Workbench; 8. Support frame; 9. Casting equipment; 91. Storage tank; 92. Stirring motor; 93. Infusion pump; 94. Discharge pipe; 95. Air inlet pipe; 10. Fixed frame. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0033] Please see Figures 1-9A foaming injection system includes a mold box 1 and a casting pipe 2. The mold box 1 includes an upper mold 11 and a lower mold 12. A forming component 3 is provided on the top of the upper mold 11. The forming component 3 includes a pressure plate 31 and a pressure rod 32 connected thereto. The pressure plate 31 has a liquid inlet hole and a vent hole 33. The casting pipe 2 is connected to the pressure plate 31 through the liquid inlet hole. The pressure rod 32 is provided with a step-by-step limiting component 4 and an unlocking component 5. The step-by-step limiting component 4 includes a driving component 41 connected to the top of the pressure rod 32.

[0034] The forming component 3 is provided with a vibration defoaming component 6, which includes a vibrator 61 that abuts against the pressure plate 31 and a telescopic component 62. The telescopic component 62 retracts step by step as the pressure plate 31 moves.

[0035] After the vibrator 61 strikes the foaming liquid at a set time, the liquid volume decreases and sinks, forcing the pressure plate 31 to move down a set distance, thereby helping the pressure rod 32 to unlock. Under the action of the drive member 41, the pressure rod 32 moves up a set distance, completing the purpose of moving up step by step.

[0036] Specifically, the pouring pipe 2 is made of flexible hose and is equipped with a solenoid valve near the end. The amount of liquid poured each time is set and increases gradually. A flow meter is installed inside the pouring pipe 2 as needed.

[0037] A sealing strip 13 is provided at the bottom of the upper mold 11, and a sealing groove 14 is provided on the top surface of the lower mold 12. The sealing strip 13 and the sealing groove 14 are compatible with each other and can maintain a good sealing relationship after they fit together. A limit strip 15 is provided on the inner wall of the upper mold 11 near the top. The pressure plate 31 finally stops below the limit strip 15. At this time, the bottom surface of the pressure plate 31 is also the top surface of the model.

[0038] Optionally, the pressure plate 31 is provided with multiple air outlets 33 (with an internal liquid-proof and breathable membrane), which allows excess gas to escape through the air outlets 33 after the bubbles burst, and also provides a buffering force to help the pressure plate 31 rise steadily each time.

[0039] The driving component 41 is an elastic structure. In this case, an elastic rope or a strong spring can be selected. Initially, the pressure plate 31 and the inner bottom surface of the lower mold 12 maintain a set distance, which ranges from 5 to 15 cm, preferably 10 cm.

[0040] Under prolonged vibration, the vibrator 61 breaks up larger air bubbles using vibration waves, resulting in a more uniform mixture of liquid and air bubbles, and making the bubble sizes more consistent. At this point, gas overflows from the liquid, reducing its volume and causing the liquid level to drop. This causes the vibrator 61 to push the pressure plate 31 down a short distance, ranging from 1 to 3 centimeters. The pressure plate 31 is then unlocked and rises a set distance (preferably 10 centimeters). At this time, the solenoid valve opens, and liquid continues to be injected. This process is repeated, which not only makes the foaming liquid bubble filling more uniform and the size more consistent, but also allows for more accurate liquid filling, avoiding insufficient filling that could result in an uneven top surface or the molded sample not meeting the length, width, and height standards.

[0041] In a further embodiment of the present invention, the step-by-step limiting component 4 further includes a hollow rod 42, the inner wall of which is provided with a plurality of limiting plates 43, and the outer end of the pressure rod 32 is fixedly connected with a plurality of elastic elements 44, the end of which is fixedly connected with an arc-shaped block 45, the top surface of which is a planar structure and abuts against the corresponding limiting plate 43.

[0042] The elastic element 44 is specifically a telescopic block 441. The telescopic block 441 includes a hollow block 442 fixedly connected to the outer end of the pressure rod 32. A movable block is slidably connected inside the hollow block 442. A telescopic spring 443 is sleeved on the outside of the movable block. The spring force is small. One end of the telescopic spring 443 is fixedly connected to the arc-shaped block 45, and the other end is fixedly connected to the outer wall of the hollow block 442. Initially, the top surface of the arc-shaped block 45 abuts against the limiting plate 43. The limiting plate 43 has a ring structure.

[0043] Furthermore, a guide sleeve is provided. The guide sleeve is fixedly sleeved on the inner wall of the hollow rod 42 near the bottom. The pressure rod 32 slides inside the guide sleeve, which can restrict the pressure rod 32 to move only in the vertical direction.

[0044] In a further embodiment of the present invention, the unlocking component 5 includes a traction member 51, a sliding ring 52 is provided between the pressure rod 32 and the pressure plate 31, a movable groove 53 is provided at the bottom of the pressure rod 32, a reset member is provided between the inner wall of the movable groove 53 and the sliding ring 52, the pressure plate 31 and the arc block 45 are connected by the traction member 51, the foaming liquid level drops a set distance under continuous vibration, so that the pressure plate 31 also drops to the set distance under the action of the vibrator 61, pulling the arc block 45 to move and unlocking it.

[0045] Specifically, one end of the traction member 51 movably passes through the moving block and connects to the arc-shaped block 45; alternatively, it can also be directly connected to the moving block.

[0046] Furthermore, a first magnetic ring 54 is fixedly connected to the top surface of the sliding ring 52, and a second magnetic ring 55 is fixedly connected to the inner top surface of the movable groove 53. The first magnetic ring 54 and the second magnetic ring 55 initially attract each other. When the volume of the foaming liquid decreases, the pressure plate 31 is subjected to the vibration force of the vibrator 61, which drives the first magnetic ring 54 and the second magnetic ring 55 to separate, thus helping the arc block 45 to unlock.

[0047] When the vibrator 61 starts working continuously, the larger bubbles gradually burst, making the liquid and bubbles mix more evenly. The liquid level begins to drop, allowing the vibrator 61 to push the pressure plate 31 down a set distance, exceeding the magnetic force between the first magnetic ring 54 and the second magnetic ring 55. Then, the pressure plate 31 slides with the traction member 51, pulling the arc block 45 to move, causing the arc block 45 to gradually break away from the resistance of the limiting plate 43 and quickly rise under the action of the driving member 41. During the rise of the pressure rod 32, it also pulls the pressure plate 31 and the arc block 45 to rise. The arc block 45 returns to its initial position under the action of the telescopic spring 443 and stops in contact with the next limiting plate 43.

[0048] In this case, the vibration force of the vibrator 61 is greater than the elastic force of the reset member plus the elastic force of the telescopic spring 443 plus the magnetic force of the first magnetic ring 54 and the second magnetic ring 55.

[0049] In a further embodiment of the present invention, the telescopic member 62 includes a contact rod 621 and a fixed rod 622. The contact rod 621 slides inside the fixed rod 622. The fixed rod 622 has a plurality of slots 623 inside. The outer end of the contact rod 621 is fixedly connected to a retaining ring 624, which engages with the corresponding slot 623.

[0050] Each time, the retaining ring 624 will be locked in the corresponding retaining groove 623. The distance that the retaining ring 624 rises is equal to the distance that the arc block 45 rises. That is, when the arc block 45 stops, the retaining ring 624 stops and stops exactly in the retaining groove 623. The supporting force that the retaining groove 623 provides to the retaining ring 624 is greater than the vibration force of the vibrator 61, so that the top surface of the vibrator 61 remains stable when it works, which makes it easy to adhere tightly to the pressure plate 31 and to perform effective vibration.

[0051] The spacing between the multiple limiting plates 43 is the same as the spacing between the multiple slots 623, and the outer side of the retaining ring 624 is made of an arc-shaped elastic material.

[0052] The driving component 41 is a strong spring with a spring force greater than the air damping force on the pressure plate 31 plus the snapping force between the slot 623 and the snap ring 624 (i.e., the spring force of the snap ring 624). When the arc block 45 slides to the bottom surface of the uppermost limiting plate 43, the strong spring still has sufficient spring force. At this time, the upper mold 11 is almost filled. During the last vibration, the pressure plate 31 has reached the top. At this time, continue to pour liquid until it is full.

[0053] The vibration defoaming component 6 also includes a linkage plate 63, with a fixing block 64 fixedly connected to the end of the linkage plate 63. The vibrator 61 is detachably connected to the fixing block 64. The vibrator 61 is electrically connected to a controller. The bottom of the contact rod 621 is fixedly connected to the linkage plate 63.

[0054] It also includes a workbench 7, the top of which is fixedly connected to a support frame 8, and the side end of the support frame is fixedly connected to a fixing frame 10. The tops of the hollow rod 42 and the fixing rod 622 are both fixedly connected to the outer end of the fixing frame 10.

[0055] The workbench 7 is also equipped with two pairs of clamping bars to support the lower mold 12. The bottom surface of the lower mold 12 can also be equipped with a vibrator 61 to continuously vibrate the liquid near the top surface.

[0056] Please see Figure 10 In this invention, a foaming line for a box body is also involved. The foaming and grouting system described above includes a pouring device 9, which includes a pump 93. One end of the pump 93 is connected to the pouring pipe 2, and the other end is fixedly connected to a storage tank 91 through an outlet pipe 94. The mixing tank is filled with foaming liquid, and the mixing tank is also equipped with an air inflation mechanism and a stirring mechanism.

[0057] The mixing mechanism includes a mixing motor 92 and a mixing blade connected thereto, and the air inflation mechanism includes an air pump and an air inlet pipe 95 connected thereto. After the foaming liquid is made, it is transported to the mold box 1 through the infusion pump 93 and the casting pipe 2.

[0058] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A foaming injection system, comprising a mold box (1) and a casting pipe (2), characterized in that: The mold box (1) includes an upper mold (11) and a lower mold (12). The upper mold (11) is provided with a forming component (3) at its top. The forming component (3) includes a pressure plate (31) and a pressure rod (32) connected thereto. The pressure plate (31) is provided with a liquid inlet hole and a vent hole (33). The casting pipe (2) is connected to the pressure plate (31) through the liquid inlet hole. The pressure rod (32) is provided with a step-by-step limiting component (4) and an unlocking component (5). The step-by-step limiting component (4) includes a driving component (41) connected to the top of the pressure rod (32). The forming component (3) is provided with a vibration defoaming component (6), which includes a vibrator (61) that abuts against the pressure plate (31) and a telescopic component (62). The telescopic component (62) retracts step by step as the pressure plate (31) moves. After the vibrator (61) strikes the foaming liquid at a set time, the liquid volume decreases and sinks, forcing the pressure plate (31) to move down a set distance, thereby helping the pressure rod (32) to unlock, so that the pressure rod (32) moves up a set distance under the action of the drive member (41), thus completing the purpose of moving up step by step; The step-by-step limiting component (4) also includes a hollow rod (42), the inner wall of which is provided with multiple limiting plates (43), the outer end of the pressure rod (32) is fixedly connected with multiple elastic elements (44), the end of the elastic element (44) is fixedly connected with an arc-shaped block (45), the top surface of the arc-shaped block (45) is a planar structure and abuts against the corresponding limiting plate (43); The unlocking component (5) includes a traction component (51), a sliding ring (52) is provided between the pressure rod (32) and the pressure plate (31), a movable groove (53) is provided at the bottom of the pressure rod (32), a reset component is provided between the inner wall of the movable groove (53) and the sliding ring (52), the pressure plate (31) and the arc block (45) are connected by the traction component (51), the foaming liquid level drops a set distance under continuous vibration, so that the pressure plate (31) also drops to a set distance under the action of the vibrator (61), pulling the arc block (45) to move, thus unlocking it; The top surface of the sliding ring (52) is fixedly connected to a first magnetic ring (54), and the inner top surface of the movable groove (53) is fixedly connected to a second magnetic ring (55). The first magnetic ring (54) and the second magnetic ring (55) initially attract each other. When the volume of the foaming liquid decreases, the pressure plate (31) is subjected to the vibration force of the vibrator (61), which drives the first magnetic ring (54) and the second magnetic ring (55) to separate, thus helping the arc block (45) to unlock. The telescopic component (62) includes a contact rod (621) and a fixed rod (622). The contact rod (621) slides inside the fixed rod (622). The fixed rod (622) has multiple slots (623) inside. The outer end of the contact rod (621) is fixedly connected to a retaining ring (624), which engages with the corresponding slot (623).

2. The foaming injection system according to claim 1, characterized in that, The vibration defoaming component (6) also includes a linkage plate (63), the end of which is fixedly connected to a fixing block (64), the vibrator (61) is detachably connected to the fixing block (64), the vibrator (61) is electrically connected to a controller, and the bottom of the contact rod (621) is fixedly connected to the linkage plate (63).

3. The foaming injection system according to claim 2, characterized in that, It also includes a workbench (7). The top of the workbench (7) is fixedly connected to a support frame (8), and the side end of the support frame is fixedly connected to a fixing frame (10). The tops of the hollow rod (42) and the fixing rod (622) are both fixedly connected to the outer end of the fixing frame (10).

4. The foaming injection system according to claim 3, characterized in that, The spacing between the plurality of limiting plates (43) is the same as the spacing between the plurality of slots (623), and the outer side of the retaining ring (624) is made of an arc-shaped elastic material.

5. A foaming line for a housing, using the foaming and filling system according to any one of claims 1-4, characterized in that, The equipment includes a pouring device (9), which includes an infusion pump (93). One end of the infusion pump (93) is connected to the pouring pipe (2), and the other end is fixedly connected to a mixing tank. The mixing tank is filled with foaming liquid, and the mixing tank is also equipped with an air inflation mechanism and a mixing mechanism.

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