A polyurethane casting machine dosing device

Abstract

The utility model discloses a kind of polyurethane casting machine quantitative casting device, belong to polyurethane casting machine technical field.This kind of polyurethane casting machine quantitative casting device, including butt joint pipeline, the bottom end of butt joint pipeline is connected with first electric valve, the bottom end of first electric valve is connected with adapter, the bottom end of adapter is connected with second electric valve, the bottom end of second electric valve is equipped with discharge joint, the adapter includes short pipe, the outer wall of short pipe is equipped with round hole, one side of round hole is equipped with quantitative mechanism, the quantitative mechanism includes push mechanism, the quantitative mechanism includes storage cylinder, one end of storage cylinder is equipped with fixed base, the outer wall of adapter is connected with one side of fixed base, the utility model is used in the cooperation of first electric valve, adapter, second electric valve, quantitative mechanism and push mechanism, so that the casting device can be realized accurate quantitative control function to polyurethane raw material.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane casting machine technology, specifically to a quantitative casting device for a polyurethane casting machine. Background Technology

[0002] A polyurethane casting machine is a machine used for casting polyurethane materials. It is mainly used to pour polyurethane raw materials into molds of a specific shape, then press and cool them to form a product of a specific shape. The casting head is the structure of the polyurethane casting machine used for material discharge, typically consisting of a casting pipe and an input pipe. The polyurethane raw materials input through the input pipe are discharged through the casting pipe. A search revealed a polyurethane casting machine casting head structure in Chinese patent CN218171089U, including a fixed base and a movable base. A connector is fixedly installed on the upper part of the fixed base, and a guide rod connects the fixed base and the movable base. A casting pipe is installed at the bottom center of the movable base, and an input pipe is connected to the outside of the casting pipe. An electric telescopic rod is installed on the upper part of the fixed base. A drip-collecting structure is provided between the fixed base and the movable base. The drip-collecting structure includes a fixed rod and a receiving box. The fixed rod is fixedly installed on one side of the fixed base, and a first shaft seat is installed on the upper part of the receiving box near one side, and the first shaft seat is rotatably connected to the fixed rod. The polyurethane casting head structure of this utility model, through linkage with the movable seat, can promptly collect residual polyurethane raw materials dripping from the casting pipe, thereby effectively avoiding material waste and reducing the work of cleaning up residual raw materials later.

[0003] However, in actual use, the lack of adjacent quantitative facilities makes it impossible to control the polyurethane raw material discharged from the pouring pipe, resulting in the finished product being prone to having too much or too little material, thus reducing the pass rate of the finished product. Utility Model Content

[0004] To address the lack of quantitative function in existing casting devices, this invention provides a quantitative casting device for a polyurethane casting machine.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows: A quantitative pouring device for a polyurethane casting machine includes a connecting pipe, the bottom end of which is connected to a first electric valve, the bottom end of which is connected to an adapter, the bottom end of which is connected to a second electric valve, the bottom end of which is provided with a discharge connector, the adapter including a short pipe, the outer wall of which has a circular hole, and a quantitative mechanism on one side of the circular hole, the quantitative mechanism including a pushing mechanism.

[0006] Furthermore, the metering mechanism includes a storage cylinder, one end of which is fitted with a fixing base. One side of the fixing base is connected to the outer wall of the adapter, and one end of the storage cylinder is connected to one end of the circular hole.

[0007] The beneficial effect of adopting the above-mentioned further solution is that the storage cylinder provides temporary storage space for polyurethane raw materials, and the fixing seat securely connects the storage cylinder to the outer wall of the adapter, ensuring precise communication between the storage cylinder and the round hole and preventing leakage of raw materials during transmission.

[0008] Furthermore, an end cap is installed at one end of the storage cylinder, and a stud is threaded inside the end cap. A through hole is opened inside the stud, and a sliding rod is slidably connected inside the through hole. One end of the sliding rod extends into the interior of the storage cylinder and is connected to a piston plate. The piston plate is slidably connected inside the storage cylinder.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the end cap at one end of the storage cylinder is sealed by a stud, and the slide rod inside the stud drives the piston plate to slide inside the storage cylinder. The effective volume inside the storage cylinder can be changed by adjusting the position of the piston plate, thereby flexibly adjusting the quantitative pouring amount to adapt to the pouring requirements of different specifications of products. The perforation provides a stable sliding path for the slide rod, avoiding quantitative errors caused by sliding deviation.

[0010] Furthermore, the slide rod is connected to a limit plate at the end away from the piston plate.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the limiting plate at one end of the slide rod can limit the sliding stroke of the slide rod, preventing the slide rod from extending too far into the storage cylinder and causing damage to the piston plate, or from being pulled out too far and causing the slide rod to detach from the stud. The limiting plate also provides a force point for the pushing mechanism, ensuring that the pushing mechanism can accurately push the slide rod to move the piston plate.

[0012] Furthermore, the outer wall of the stud is provided with riveting grooves on one side.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the grooves on the outer wall of the stud increase the frictional resistance between the hand and the stud, making it less likely for the operator to slip when rotating the stud to adjust the initial position of the piston plate.

[0014] Furthermore, the pushing mechanism includes a "U"-shaped frame, the outer wall of the end cover is fitted with a "U"-shaped frame, the outer wall of the "U"-shaped frame is fitted with a cylinder, the output end of the cylinder extends into the interior of the "U"-shaped frame and is connected to a push plate, the push plate is parallel to the limiting plate, and the outer wall of the "U"-shaped frame is provided with scale lines.

[0015] The beneficial effects of adopting the above-mentioned further solution are that the "U"-shaped frame of the pushing mechanism provides stable installation support for the cylinder, the cylinder output end pushes the push plate, which in turn drives the limit plate and slide rod to move, realizing the automatic pushing of the piston plate. The pushing force is uniform, avoiding the quantitative error caused by uneven manual pushing force. The scale line can intuitively display the sliding rod movement distance, making it easy for operators to accurately control the position of the piston plate and improve the accuracy of quantitative pouring.

[0016] Furthermore, a fixing bracket is installed on the outer wall of the docking pipe.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the fixing frame can fix the entire device to the casting machine or other equipment, avoiding loosening of the interface and leakage of raw materials due to pipe shaking during the casting process, and enhancing the overall stability of the device.

[0018] Furthermore, the discharge connector includes a cone, the top of which is connected to a threaded sleeve, and the cone is connected to the bottom of the second electric valve through the threaded sleeve.

[0019] The advantages of adopting the above-mentioned further solutions are that the cone can concentrate the discharge of polyurethane raw materials, reduce diffusion waste during discharge, and adapt to the needs of narrow molds or precise pouring points; the threaded sleeve facilitates quick disassembly and assembly of the discharge joint and the second electric valve, and if there is residual raw material or wear on the inner wall of the cone, it can be disassembled and cleaned or replaced separately.

[0020] Compared with the prior art, the beneficial effects of this utility model are: This polyurethane casting machine's quantitative casting device, through the coordinated use of a first electric valve, an adapter, a second electric valve, a quantitative mechanism, and a pushing mechanism, enables precise quantitative control of polyurethane raw materials. The connecting pipe provides a transport channel for the polyurethane raw materials. The first and second electric valves respectively control the timing of the raw materials entering the adapter and exiting from the discharge connector, achieving segmented control of the casting process. The short pipe of the adapter connects to the quantitative mechanism through a round hole, allowing it to control the amount of raw materials to be cast. The pushing mechanism then propels the quantitatively measured raw materials through the second electric valve and through the discharge connector to complete the casting operation, thus solving the problem of precise quantitative control during casting. Attached Figure Description

[0021] Figure 1 A three-dimensional schematic diagram of a quantitative pouring device for a polyurethane pouring machine provided by this utility model; Figure 2 A schematic diagram of an adapter for a quantitative pouring device of a polyurethane pouring machine provided by this utility model; Figure 3 A schematic diagram of the discharge joint of a quantitative casting device for a polyurethane casting machine provided by this utility model; Figure 4 A schematic diagram of the quantitative mechanism of a quantitative pouring device for a polyurethane pouring machine provided by this utility model; Figure 5 A schematic diagram of the driving mechanism of a quantitative pouring device for a polyurethane pouring machine provided by this utility model.

[0022] In the diagram: 1. Connecting pipe; 2. First electric valve; 3. Adapter; 301. Short pipe; 302. Round hole; 4. Second electric valve; 5. Discharge connector; 501. Conical cylinder; 502. Threaded sleeve; 6. Metering mechanism; 601. Storage cylinder; 602. End cap; 603. Stud; 604. Rivet; 605. Sliding rod; 606. Limiting plate; 607. Piston plate; 608. Fixed seat; 609. Perforation; 7. Pushing mechanism; 701. "U" shaped frame; 702. Cylinder; 703. Push plate; 704. Scale line; 8. Fixed frame. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 This utility model provides a technical solution: a quantitative pouring device for a polyurethane pouring machine, including a connecting pipe 1, a first electric valve 2 connected to the bottom end of the connecting pipe 1, an adapter 3 connected to the bottom end of the first electric valve 2, a second electric valve 4 connected to the bottom end of the adapter 3, and a discharge connector 5 provided at the bottom end of the second electric valve 4. The adapter 3 includes a short pipe 301, a circular hole 302 opened on the outer wall of the short pipe 301, and a quantitative mechanism 6 provided on one side of the circular hole 302. The quantitative mechanism 6 includes a pushing mechanism 7. The connecting pipe 1 provides a conveying channel for polyurethane raw materials. The first electric valve 2 and the second electric valve 4 can respectively control the timing of the raw materials entering the adapter 3 and being discharged from the discharge connector 5, realizing segmented control of the pouring process. The short pipe 301 of the adapter 3 is connected to the quantitative mechanism 6 through the circular hole 302, so that it can control the amount of raw materials to be poured. With the help of the pushing mechanism 7, the quantitatively quantified raw materials can be pushed forward, thereby passing through the second electric valve 4 and completing the pouring operation through the discharge connector 5.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] As an embodiment of this utility model, the metering mechanism 6 further includes a storage cylinder 601, one end of which is fitted with a fixing seat 608. One side of the fixing seat 608 is connected to the outer wall of the adapter 3, and one end of the storage cylinder 601 is connected to one end of the round hole 302. The storage cylinder 601 provides temporary storage space for polyurethane raw materials. The fixing seat 608 securely connects the storage cylinder to the outer wall of the adapter 3, ensuring precise communication between the storage cylinder and the round hole 302, and preventing leakage of raw materials during transmission.

[0027] As an embodiment of this utility model, a further embodiment includes an end cap 602 installed at one end of the storage cylinder 601. A stud 603 is threadedly connected to the inside of the end cap 602. A through hole 609 is provided inside the stud 603. A slide rod 605 is slidably connected inside the through hole 609. One end of the slide rod 605 extends into the inside of the storage cylinder 601 and is connected to a piston plate 607. The piston plate 607 is slidably connected inside the storage cylinder 601. The end cap 602 at one end of the storage cylinder 601 is sealed by the stud 603. The slide rod 605 inside the stud drives the piston plate 607 to slide inside the storage cylinder. The effective volume inside the storage cylinder 601 can be changed by adjusting the position of the piston plate 607, thereby flexibly adjusting the quantitative pouring amount to meet the pouring requirements of different specifications of products. The through hole 609 provides a stable sliding path for the slide rod, avoiding quantitative errors caused by sliding deviation.

[0028] In one embodiment of this utility model, a limiting plate 606 is further connected to the end of the slide rod 605 away from the piston plate 607. The limiting plate 606 at one end of the slide rod 605 can limit the sliding stroke of the slide rod, preventing the slide rod 605 from excessively extending into the storage cylinder 601 and causing damage to the piston plate 607, or from excessively pulling out and causing the slide rod 605 to disengage from the stud. The limiting plate 606 also provides a force point for the pushing mechanism 7, ensuring that the pushing mechanism can accurately push the slide rod to move the piston plate.

[0029] As an embodiment of this utility model, further, a groove 604 is provided on one side of the outer wall of the stud 603. The groove 604 on the outer wall of the stud 603 increases the frictional resistance between the hand and the stud, making it less likely for the operator to slip when rotating the stud to adjust the initial position of the piston plate.

[0030] As an embodiment of this utility model, the pushing mechanism 7 further includes a U-shaped frame 701. The U-shaped frame 701 is installed on the outer wall of the end cap 602. A cylinder 702 is installed on the outer wall of the U-shaped frame 701. The output end of the cylinder 702 extends into the interior of the U-shaped frame 701 and is connected to a push plate 703. The push plate 703 is parallel to the limiting plate 606. The outer wall of the U-shaped frame 701 is provided with a scale line 704. The U-shaped frame 701 of the pushing mechanism 7 provides stable installation support for the cylinder 702. The output end of the cylinder pushes the push plate 703, thereby driving the limiting plate 606 and the slide rod 605 to move, realizing the automatic pushing of the piston plate 607. The pushing force is uniform, avoiding the quantitative error caused by uneven manual pushing force. The scale line 704 can intuitively display the sliding rod movement distance, making it easy for operators to accurately control the position of the piston plate 607 and improve the accuracy of quantitative pouring.

[0031] As an embodiment of this utility model, a fixing frame 8 is further installed on the outer wall of the connecting pipe 1. The fixing frame 8 can fix the entire device on the casting machine or other equipment to avoid loosening of the interface and leakage of raw materials due to pipe shaking during the casting process, thereby enhancing the overall stability of the device.

[0032] As an embodiment of this utility model, the discharge connector 5 further includes a cone 501, the top end of which is connected to a threaded sleeve 502. The cone 501 is connected to the bottom end of the second electric valve 4 through the threaded sleeve 502. The cone 501 can concentrate the discharge of polyurethane raw materials, reduce diffusion waste during discharge, and adapt to the needs of narrow molds or precise casting points. The threaded sleeve 502 facilitates quick disassembly and assembly of the discharge connector and the second electric valve 4. If there is residual raw material or wear on the inner wall of the cone, it can be disassembled and cleaned or replaced separately.

[0033] Specifically, the working principle of this polyurethane casting machine's quantitative casting device is as follows: During use, the entire device is first fixed to the casting machine or related equipment via the fixing bracket 8 on the outer wall of the connecting pipe 1 to ensure stable operation. Polyurethane raw materials are transported through the connecting pipe 1. The first electric valve 2 is opened, allowing the raw material to enter the short pipe 301 of the adapter 3 and flow into the storage cylinder 601 of the quantitative mechanism 6 through the round hole 302 on the outer wall of the short pipe. Simultaneously, the second electric valve 4 is closed to prevent direct discharge. The operator can adjust the position of the stud 603 within the end cap 602 by rotating it. The through hole 609 inside the stud guides the sliding rod 605, which in turn drives the piston plate 607 to slide within the storage cylinder, changing the effective volume of the storage cylinder to set the required casting volume. A limiting plate 606 at one end of the sliding rod prevents excessive movement of the sliding rod, which could damage components. After the quantitative measurement is completed, the cylinder 702 of the pushing mechanism 7 is activated. The "U"-shaped frame 701 provides stable support for the cylinder. The output end of the cylinder pushes the push plate 703. The push plate drives the limit plate and the slide rod to move, which in turn pushes the piston plate to push the quantitative raw material in the storage cylinder into the adapter short pipe. At this time, the second electric valve 4 is opened, and the first electric valve 2 is closed to prevent backflow. The raw material flows into the second electric valve 4 through the short pipe, and then is discharged in a concentrated manner through the cone 501 of the discharge connector 5, completing the precise pouring operation.

Claims

1. A quantitative pouring device for a polyurethane pouring machine, characterized in that, The device includes a docking pipe (1), the bottom end of which is connected to a first electric valve (2), the bottom end of which is connected to an adapter (3), the bottom end of which is connected to a second electric valve (4), the bottom end of which is provided with a discharge connector (5), the adapter (3) includes a short pipe (301), the outer wall of which is provided with a round hole (302), and a metering mechanism (6) is provided on one side of the round hole (302), the metering mechanism (6) including a pushing mechanism (7).

2. The quantitative casting device for a polyurethane casting machine according to claim 1, characterized in that, The quantitative mechanism (6) includes a storage cylinder (601), one end of which is fitted with a fixing seat (608). One side of the fixing seat (608) is connected to the outer wall of the adapter (3), and one end of the storage cylinder (601) is connected to one end of the round hole (302).

3. The quantitative casting device for a polyurethane casting machine according to claim 2, characterized in that, One end of the storage cylinder (601) is fitted with an end cap (602), and a stud (603) is threaded inside the end cap (602). A through hole (609) is opened inside the stud (603), and a slide rod (605) is slidably connected inside the through hole (609). One end of the slide rod (605) extends into the interior of the storage cylinder (601) and is connected to a piston plate (607). The piston plate (607) is slidably connected inside the storage cylinder (601).

4. The quantitative casting device for a polyurethane casting machine according to claim 3, characterized in that, The slide bar (605) is connected to a limiting plate (606) at the end away from the piston plate (607).

5. The quantitative casting device for a polyurethane casting machine according to claim 4, characterized in that, The stud (603) has a riveting pattern (604) on one side of its outer wall.

6. The quantitative casting device for a polyurethane casting machine according to claim 5, characterized in that, The pushing mechanism (7) includes a "U" shaped frame (701), the "U" shaped frame (701) is installed on the outer wall of the end cap (602), a cylinder (702) is installed on the outer wall of the "U" shaped frame (701), the output end of the cylinder (702) extends into the interior of the "U" shaped frame (701) and is connected to a push plate (703), the push plate (703) is parallel to the limiting plate (606), and the outer wall of the "U" shaped frame (701) is provided with scale lines (704).

7. A quantitative pouring device for a polyurethane pouring machine according to claim 6, characterized in that, A fixing bracket (8) is installed on the outer wall of the docking pipe (1).

8. The quantitative casting device for a polyurethane casting machine according to claim 1, characterized in that, The discharge connector (5) includes a cone (501), the top end of which is connected to a threaded sleeve (502), and the cone (501) is connected to the bottom end of the second electric valve (4) through the threaded sleeve (502).

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