Feeding device for polyurethane foaming

Abstract

The polyurethane foaming feeding device comprises a box body and a shaft pipe, a feeding pipe and a blow-off pipe are fixedly arranged on the outer wall of the box body in a penetrating mode, a feeding hopper is fixedly arranged on the outer wall of the feeding pipe in a penetrating mode, a first electromagnetic valve is arranged on the side wall of the discharging end of the feeding hopper, a piston column is installed in the feeding pipe in a sliding mode, and a second electromagnetic valve is arranged on the side wall of the discharging end of the feeding hopper. A liquid pump, an air pump, an inflation pump and a right-angle frame are installed on the upper portion of the box body, the input end of the liquid pump is connected with a suction pipe in a clamped mode, the output end of the liquid pump is connected with a discharging pipe in a clamped mode, a metering valve is arranged on the side wall of the discharging pipe, a control panel is installed on the outer wall of the box body, and a liquid spraying gun is installed at one end of the discharging pipe. And the input end of the air extracting pump is clamped with a first air guide pipe. The feeding device has the advantages that the shaft pipe and the piston plate are arranged, raw materials adsorbed on the inner wall of the storage space can be conveniently cleaned through the shaft pipe and the piston plate, and convenience is brought to cleaning of the storage space of the feeding device for polyurethane foaming.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane foam material processing technology, and more specifically, to a polyurethane foam feeding device. Background Technology

[0002] Polyurethane foam is a widely used synthetic material with excellent thermal insulation, waterproofing and bonding properties. In actual production of polyurethane foam, a feeding device is required to transport raw materials into the foaming tank. In practice, it has the advantages of simple operation, stable structure and good performance.

[0003] The prior art discloses an automatic polyurethane foam material dispensing device with application number CN202021998692.0. In this utility model, when storing polyurethane foam material in the storage tank, some of the material is adsorbed on the inner wall of the storage tank. Without a cleaning structure, it is difficult to remove the adsorbed material from the storage tank, which makes cleaning the storage space of this utility model inconvenient. At the same time, when the polyurethane foam material enters the storage tank through the feed pipe, some of the material is adsorbed on the inner wall of the feed pipe, making it difficult to quickly enter the storage tank, thus reducing the practicality of this utility model. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a polyurethane foam feeding device that has the advantages of facilitating the cleaning of raw materials adsorbed on the inner wall of the storage space and facilitating the discharge of raw materials from the inside of the feeding structure, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the advantages of facilitating the cleaning of raw materials adsorbed on the inner wall of the storage space and facilitating the discharge of raw materials from the inside of the feeding structure, the specific technical solution adopted by this utility model is as follows: A polyurethane foam feeding device includes a housing and a shaft tube. A feed pipe and a drain pipe are fixedly inserted through the outer wall of the housing. A feed hopper is fixedly inserted through the outer wall of the feed pipe, and a first solenoid valve is provided on the side wall of the discharge end of the feed hopper. A piston column is slidably installed inside the feed pipe. A liquid pump, an air pump, an air filling pump, and a right-angle frame are installed on the upper part of the housing. A suction pipe is snapped into the input end of the liquid pump, and a discharge pipe is snapped into the output end of the liquid pump. A metering valve is provided on the side wall of the discharge pipe. A control surface is installed on the outer wall of the housing. The plate has a discharge pipe with a spray gun installed at one end. The input end of the air pump is connected to a first air guide pipe, and the output end of the air pump is connected to a second air guide pipe. One end of the first and second air guide pipes is inserted into the interior of the housing. A second solenoid valve is provided on the side wall of both the first and second air guide pipes. A drive motor is installed on the upper part of the right-angle frame, and a main gear is sleeved on the output end of the drive motor. A driven gear is fixedly sleeved on the upper side wall of the shaft tube. A piston plate is slidably sleeved on the side wall of the shaft tube. Two sets of clamping plates are installed on the outer wall of the shaft tube. Two sets of clamping grooves are provided on the inner wall of the piston plate. The two sets of clamping plates pass through the two sets of clamping grooves respectively. One end of the suction pipe is connected to the upper end of the shaft tube through a bearing.

[0008] Furthermore, the main gear and the driven gear mesh with each other.

[0009] Furthermore, a filter screen plate is installed inside the feed end of the feed pipe, and a connecting rod is slidably installed inside the filter screen plate. A right-angle plate is installed at the feed end of the feed pipe, and an electric telescopic rod passes through one side of the right-angle plate. The telescopic end of the electric telescopic rod is connected to the connecting rod, and one end of the connecting rod is connected to the piston column. The electric telescopic rod is electrically connected to the control panel via wires.

[0010] Furthermore, the side wall of the sewage pipe is equipped with an on / off valve.

[0011] Furthermore, a base is installed on the lower part of the housing.

[0012] Furthermore, the control panel is electrically connected to the first solenoid valve, the liquid pump, the air pump, the air filling pump, the drive motor, the metering valve, and the two sets of the second solenoid valves via wires.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a polyurethane foam feeding device, which has the following beneficial effects:

[0015] (1) This utility model is equipped with a shaft tube and a piston plate. When using the polyurethane foam feeding device, the control panel is used to make the drive motor and the liquid pump work. The liquid pump can draw the polyurethane foam material inside the box into the discharge pipe through the shaft tube and the suction pipe. Finally, the polyurethane foam material is sprayed out through the spray gun. The metering valve can know the volume of polyurethane foam material discharged. At the same time, the output end of the drive motor drives the main gear to rotate. Since the main gear and the driven gear mesh with each other, the rotating main gear can drive the driven gear to rotate. The rotating driven gear can drive the piston plate to rotate through the shaft tube. At this time, the control panel is used to open and close the second set of solenoid valves on the right side, and at the same time, the air pump is made to work. Air can enter the interior of the chamber through the second air guide pipe. This air can push the piston plate downwards, and the downward-moving piston plate can scrape the adsorbed material on the inner wall of the chamber. Finally, the adsorbed material is discharged from the interior of the chamber through the drain pipe. At this time, the control panel is used to close the second set of solenoid valves on the right side and open and close the second set of solenoid valves on the left side. Then, the air pump is activated, which can extract the air inside the chamber through the first air guide pipe. During this process, the piston plate moves upwards, ready for the next use. The two sets of clamping plates and two sets of clamping slots can ensure the stability of the piston plate's up and down movement. Through the set shaft tube and piston plate, it is easy to clean the raw materials adsorbed on the inner wall of the storage space, which brings convenience to the cleaning of the storage space of the polyurethane foam feeding device.

[0016] (2) This utility model is equipped with a feeding hopper and a piston column. When it is necessary to add raw materials to the inside of the box, the first solenoid valve is opened and closed using the control panel. At this time, the raw materials can be poured into the inside of the feeding hopper. The raw materials will eventually enter the inside of the feeding pipe. Using the control panel, the electric telescopic rod is extended. The piston column can be moved to the left through the connecting rod. The left-moving piston column can push the raw materials inside the feeding pipe, so that the raw materials inside the feeding pipe can quickly enter the inside of the box. At the same time, the raw materials inside the feeding hopper are blocked by the piston column and will not enter the inside of the feeding pipe. When the electric telescopic rod is shortened, the piston column is moved to the right through the connecting rod. When the piston column is reset to the right, the raw materials inside the feeding hopper continue to enter the inside of the feeding pipe. The filter screen plate provides protection for the movement of the piston column. The right angle plate serves to install the electric telescopic rod. With the feeding hopper and piston column, it is easy to discharge the raw materials inside the feeding structure, which improves the practicality of the polyurethane foam feeding device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a polyurethane foam feeding device according to an embodiment of the present utility model.

[0019] Figure 2 This is a perspective view of the piston plate according to an embodiment of the present utility model;

[0020] Figure 3 According to the embodiments of this utility model Figure 1 Enlarged view of A in the middle;

[0021] Figure 4 According to the embodiments of this utility model Figure 1 A magnified view of B in the middle.

[0022] In the picture:

[0023] 1. Housing; 2. Feed pipe; 3. Feed hopper; 4. First solenoid valve; 5. Piston column; 6. Liquid pump; 7. Air pump; 8. Air pump; 9. Shaft tube; 10. Piston plate; 11. Slot; 12. Plate; 13. Pull pipe; 14. Discharge pipe; 15. First air guide pipe; 16. Second air guide pipe; 17. Right-angle frame; 18. Drive motor; 19. Main gear; 20. Driven gear; 21. Filter screen plate; 22. Right-angle plate; 23. Electric telescopic rod; 24. Connecting rod; 25. Metering valve; 26. Spray gun; 27. Drain pipe. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a feeding device for polyurethane foam is provided.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a polyurethane foam feeding device according to an embodiment of the present invention includes a housing 1 and a shaft tube 9. A feed pipe 2 and a drain pipe 27 are fixedly connected through the outer wall of the housing 1. A feed hopper 3 is fixedly connected through the outer wall of the feed pipe 2, and a first solenoid valve 4 is provided on the side wall of the discharge end of the feed hopper 3. A piston column 5 is slidably installed inside the feed pipe 2. A liquid pump 6, an air pump 7, an air filling pump 8, and a right-angle bracket 17 are installed on the upper part of the housing 1. A suction pipe 13 is snapped into the input end of the liquid pump 6, and a discharge pipe 14 is snapped into the output end of the liquid pump 6. A metering valve 25 is provided on the side wall of the discharge pipe 14. A control panel is installed on the outer wall of the housing 1. A spray gun 26 is installed at one end of the discharge pipe 14. A first air guide pipe 15 is snapped into the input end of the air pump 7, and a second air guide pipe is snapped into the output end of the air filling pump 8. 16. One end of the first air guide pipe 15 and the second air guide pipe 16 are inserted into the interior of the housing 1. The side walls of the first air guide pipe 15 and the second air guide pipe 16 are equipped with second solenoid valves. The upper part of the right-angle frame 17 is equipped with a drive motor 18, and the output end of the drive motor 18 is sleeved with a main gear 19. The upper side wall of the shaft tube 9 is fixedly sleeved with a driven gear 20. The side wall of the shaft tube 9 is slidably sleeved with a piston plate 10. The outer wall of the shaft tube 9 is equipped with two sets of clamping plates 12. The inner wall of the piston plate 10 is equipped with two sets of clamping grooves 11. The two sets of clamping plates 12 pass through the two sets of clamping grooves 11 respectively. One end of the extraction pipe 13 is connected to the upper end of the shaft tube 9 through a bearing. Through the shaft tube 9 and the piston plate 10, it is easy to clean the raw materials adsorbed on the inner wall of the storage space, which brings convenience to the cleaning of the storage space of the polyurethane foam feeding device.

[0027] In one embodiment, the main gear 19 meshes with the driven gear 20, ensuring that the main gear 19 can drive the driven gear 20 to rotate.

[0028] In one embodiment, a perforated filter plate 21 is installed inside the feed end of the feed pipe 2, and a connecting rod 24 is slidably installed inside the perforated filter plate 21. A right-angle plate 22 is installed at the feed end of the feed pipe 2, and an electric telescopic rod 23 passes through one side of the right-angle plate 22. The telescopic end of the electric telescopic rod 23 is connected to the connecting rod 24, and one end of the connecting rod 24 is connected to the piston column 5. The electric telescopic rod 23 is electrically connected to the control panel via a wire. Through the feed hopper 3 and the piston column 5, the raw materials inside the feed structure can be easily discharged, improving the practicality of the polyurethane foam feeding device.

[0029] In one embodiment, an on / off valve is provided on the side wall of the sewage pipe 27, which serves to open and close the sewage pipe 27.

[0030] In one embodiment, a base is installed on the lower part of the housing 1.

[0031] In one embodiment, the control panel is electrically connected to the first solenoid valve 4, the liquid pump 6, the air pump 7, the air filling pump 8, the drive motor 18, the metering valve 25, and two sets of second solenoid valves via wires. The control circuit of the control panel can be implemented by simple programming by those skilled in the art and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0032] Working principle:

[0033] In actual use of the polyurethane foam feeding device, the control panel is used to operate the drive motor 18 and the liquid pump 6. The liquid pump 6 draws the polyurethane foam material inside the housing 1 into the discharge pipe 14 through the shaft tube 9 and the suction pipe 13. Finally, the polyurethane foam material is sprayed out through the spray gun 26. The metering valve 25 can detect the volume of polyurethane foam material discharged. At the same time, the output end of the drive motor 18 drives the main gear 19 to rotate. Since the main gear 19 and the driven gear 20 mesh with each other, the rotating main gear 19 can drive the driven gear 20 to rotate. The rotating driven gear 20 can drive the piston plate 10 through the shaft tube 9. Rotate the control panel. At this time, use the control panel to open and close the second set of solenoid valves on the right side, simultaneously activating the air pump 8. Air enters the interior of the housing 1 through the second air duct 16. This air pushes the piston plate 10 downwards, scraping away the adsorbent material on the inner wall of the housing 1. The adsorbent material is then discharged from the housing 1 through the drain pipe 27. Then, use the control panel to close the second set of solenoid valves on the right side, simultaneously opening and closing the second set of solenoid valves on the left side. Activate the vacuum pump 7, which extracts air from inside the housing 1 through the first air duct 15. During this process, the piston plate 10 moves upwards, ready for the next use. Two sets of clamping plates 12 and two sets of clamping slots 11 ensure the stability of the piston plate 10's vertical movement. The shaft tube 9 and piston plate 10 facilitate the cleaning of raw materials adsorbed on the inner wall of the storage space, providing convenience for cleaning the storage space of the polyurethane foam feeding device. Simultaneously, when raw materials need to be added to the inside of the housing 1, the first solenoid valve 4 is opened and closed using the control panel. At this time, the raw materials can be poured into the inside of the feeding hopper 3, and will eventually enter the inside of the feeding pipe 2. Using the control panel, the electric telescopic rod 23 extends, and the piston column 5 can be moved to the left via the connecting rod 24. The left-moving piston column 5 can push the raw materials inside the feeding pipe 2, allowing... The raw material inside the feed pipe 2 can quickly enter the interior of the housing 1. At the same time, the raw material inside the feed hopper 3 is blocked by the piston column 5 and will not enter the interior of the feed pipe 2. When the electric telescopic rod 23 is shortened, the piston column 5 is moved to the right through the connecting rod 24. After the piston column 5 is reset to the right, the raw material inside the feed hopper 3 continues to enter the interior of the feed pipe 2. The filter screen plate 21 provides protection for the movement of the piston column 5. The right angle plate 22 serves to install the electric telescopic rod 23. Through the setting of the feed hopper 3 and piston column 5, the raw material inside the feed structure can be easily discharged, improving the practicality of the polyurethane foam feeding device.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyurethane foam feeding device, comprising a housing (1) and a shaft tube (9), characterized in that, The outer wall of the box (1) is fixedly connected to a feed pipe (2) and a drain pipe (27). The outer wall of the feed pipe (2) is fixedly connected to a feed hopper (3), and a first solenoid valve (4) is provided on the side wall of the discharge end of the feed hopper (3). A piston column (5) is slidably installed inside the feed pipe (2). A liquid pump (6), an air pump (7), an air filling pump (8), and a right-angle bracket (17) are installed on the upper part of the box (1). The input end of the liquid pump (6) is connected to a suction pipe (13), and the output end of the liquid pump (6) is connected to a discharge pipe (14). A metering valve (25) is provided on the side wall of the discharge pipe (14). A control panel is installed on the outer wall of the box (1). A spray gun (26) is installed at one end of the discharge pipe (14). A first air guide pipe (15) is connected to the input end of the air pump (7). The air filling pump (6) is connected to a first solenoid valve (4). The output end of 8) is connected to the second air guide pipe (16). One end of the first air guide pipe (15) and the second air guide pipe (16) is inserted into the interior of the box (1). The side walls of the first air guide pipe (15) and the second air guide pipe (16) are both provided with second solenoid valves. The upper part of the right angle frame (17) is equipped with a drive motor (18), and the output end of the drive motor (18) is sleeved with a main gear (19). The upper side wall of the shaft tube (9) is fixedly sleeved with a driven gear (20). The side wall of the shaft tube (9) is slidably sleeved with a piston plate (10). The outer wall of the shaft tube (9) is equipped with two sets of clamping plates (12). The inner wall of the piston plate (10) is provided with two sets of clamping grooves (11). The two sets of clamping plates (12) pass through the two sets of clamping grooves (11) respectively. One end of the suction pipe (13) is connected to the upper end of the shaft tube (9) through a bearing.

2. The polyurethane foam feeding device according to claim 1, characterized in that, The main gear (19) meshes with the driven gear (20).

3. The polyurethane foam feeding device according to claim 1, characterized in that, The feed pipe (2) has a filter screen plate (21) installed inside the feed end, and a connecting rod (24) is slidably installed inside the filter screen plate (21). The feed pipe (2) has a right angle plate (22) installed inside the feed end, and an electric telescopic rod (23) passes through one side of the right angle plate (22). The telescopic end of the electric telescopic rod (23) is connected to the connecting rod (24), and one end of the connecting rod (24) is connected to the piston column (5). The electric telescopic rod (23) is electrically connected to the control panel through a wire.

4. The polyurethane foam feeding device according to claim 1, characterized in that, The side wall of the sewage pipe (27) is equipped with an on / off valve.

5. The polyurethane foam feeding device according to claim 1, characterized in that, A base is installed on the lower part of the box (1).

6. The polyurethane foam feeding device according to claim 1, characterized in that, The control panel is electrically connected to the first solenoid valve (4), the liquid pump (6), the air pump (7), the air pump (8), the drive motor (18), the metering valve (25), and two sets of the second solenoid valves via wires.

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