Internal and external water-cooled foaming gun head

Abstract

The utility model discloses an inner and outer water cooling type foaming gun head belongs to foaming gun head technical field, including the gun head main part, one end fixed mounting of gun head main part has raw material mixing chamber, the outside fixed mounting of raw material mixing chamber has outer water cooling cover, the top fixed mounting of outer water cooling cover has first water inlet pipe, and outer water cooling cover forms double cooling system with inner water cooling channel, and outer water cooling cover wraps raw material mixing chamber outside, and inner water cooling channel is distributed in the inside of mixing chamber, and the heat is taken away from inside and outside two sides simultaneously, and the heat dissipation efficiency of single cooling mode is improved, and effectively avoids raw material solidification and gun head block ahead of time, the spiral flow guide plate in outer water cooling cover guides cooling water to flow along spiral path, prolongs the heat exchange time, the spoiler salient point of inner water cooling channel breaks the water flow laminar state, and the turbulent heat exchange effect is enhanced, and the temperature difference of each area of mixing chamber is lower through the cooperation, and the local overheating problem existing in traditional cooling mode is solved.

Description

Technical Field

[0001] This utility model relates to the field of foaming gun head technology, specifically to an internally and externally water-cooled foaming gun head. Background Technology

[0002] In foam molding processes, the foaming nozzle is a key component for achieving raw material mixing and foaming. The raw materials release a large amount of heat through chemical reactions within the mixing chamber. If this heat cannot be dissipated in time, it will cause the nozzle temperature to become too high, leading to a series of problems: premature solidification of the raw materials within the mixing chamber and nozzle, causing nozzle blockage and affecting continuous production; unstable temperatures will alter the raw material reaction rate, resulting in fluctuations in the foaming ratio and reduced product quality consistency; high temperatures will accelerate the aging of nozzle components, shorten their service life, and increase equipment maintenance costs.

[0003] Existing foaming gun heads mostly employ either external or internal water cooling. External water cooling only cools the exterior of the gun head, offering limited cooling to the core material mixing chamber and resulting in significant heat accumulation. While internal water cooling directly affects the mixing chamber, uneven water flow distribution easily leads to localized cooling dead zones, and precise control of cooling intensity is difficult. Therefore, there is an urgent need for a foaming gun head structure that can achieve all-around, efficient, and controllable cooling. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an internally and externally water-cooled foaming gun head to solve the aforementioned technical problems.

[0005] The present invention adopts the following technical solution: an internal and external water-cooled foaming gun head, including a gun head body, a raw material mixing chamber fixedly installed at one end of the gun head body, an external water-cooling jacket fixedly installed on the outside of the raw material mixing chamber, a first water inlet pipe fixedly installed on the top of the external water-cooling jacket, and a first water outlet pipe fixedly installed on the bottom of the external water-cooling jacket.

[0006] An internal water cooling channel is provided on the inner side of the main body of the gun head. A second water inlet pipe is fixedly installed at one end of the internal water cooling channel, and a second water outlet pipe is fixedly installed at the other end of the internal water cooling channel. The internal water cooling channel is distributed around the inner side of the raw material mixing chamber.

[0007] Preferably, a foaming nozzle is fixedly installed at one end of the raw material mixing chamber, and a heat insulation protective sleeve is fitted on the outside of the foaming nozzle, and the heat insulation protective sleeve is fixedly connected to the outer water cooling sleeve.

[0008] Preferably, a spiral guide plate is fixedly installed on the inner side of the outer water cooling jacket. The spiral guide plate is spirally distributed along the inner wall of the outer water cooling jacket, and the first water inlet pipe and the first water outlet pipe are located at the two ends of the spiral guide plate, respectively.

[0009] Preferably, a plurality of turbulence protrusions are fixedly installed on the inner side of the internal water cooling channel, and the turbulence protrusions are evenly distributed on the outer side wall of the raw material mixing chamber.

[0010] Preferably, a temperature sensor is fixedly installed on the outer side of the nozzle body, the detection end of the temperature sensor extends to the inner side of the raw material mixing chamber, and a temperature display screen is fixedly installed on the outer side of the nozzle body, and the temperature sensor is electrically connected to the temperature display screen.

[0011] Preferably, a flow control valve is fixedly installed on the outer side of both the first and second water inlet pipes, and an adjustment knob is fixedly installed on the outer side of the flow control valve.

[0012] Preferably, a raw material input pipe is fixedly installed at the other end of the nozzle body. There are two raw material input pipes, and both raw material input pipes are connected to the raw material mixing chamber. A one-way valve is fixedly installed on the outside of the raw material input pipe. A sealing flange is fixedly installed at the connection between the outer water cooling jacket and the nozzle body. A high-temperature resistant sealing ring is provided on the inner side of the sealing flange.

[0013] Preferably, a mixing spiral core is fixedly installed on the inner side of the foaming nozzle, and a spiral mixing groove is opened on the outer side of the mixing spiral core. A manifold is fixedly installed on the outer side of the first water outlet pipe and the second water outlet pipe. A main drain pipe is fixedly installed at one end of the manifold pipe, and a water temperature sensor is fixedly installed on the outer side of the main drain pipe.

[0014] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0015] 1. The outer water-cooling jacket and the inner water-cooling channel form a dual cooling system. The outer water-cooling jacket wraps around the outside of the raw material mixing chamber, while the inner water-cooling channel is distributed around the inside of the mixing chamber. Heat is removed from both the inside and outside simultaneously, which improves heat dissipation efficiency compared to a single cooling method and effectively prevents premature solidification of raw materials and clogging of the nozzle. The spiral guide plate inside the outer water-cooling jacket guides the cooling water to flow along the spiral path, extending the heat exchange time. The turbulence protrusions in the inner water-cooling channel break the laminar flow state of the water and enhance the turbulent heat exchange effect. The combination of the two results in a low temperature difference in different areas of the mixing chamber, solving the problem of local overheating that exists in traditional cooling methods.

[0016] 2. Temperature sensors monitor the temperature inside the raw material mixing chamber in real time and display it intuitively on a temperature display screen; flow control valves on the first and second water inlets can precisely control the cooling water flow rate by adjusting the knobs, achieving dynamic adjustment of cooling intensity, ensuring stable raw material reaction temperature, and reducing foaming ratio deviation; sealing flanges and high-temperature resistant sealing rings ensure the sealing of the connection between the outer water cooling jacket and the nozzle body, preventing cooling water leakage; heat insulation protective sleeves reduce heat loss from the foaming nozzles and prevent operators from being burned by contact with high-temperature components; the manifold and main drain pipe centrally discharge cooling water, facilitating system integration, reducing equipment maintenance difficulty, and extending the overall service life of the nozzle. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the temperature sensor and temperature display screen in this utility model;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the manifold, main drain pipe, and water temperature sensor in this utility model.

[0021] Figure 4 This is a partial structural diagram of the internal water cooling channel and turbulence protrusions in this utility model.

[0022] Figure Labels

[0023] 1. Head body; 2. Raw material mixing chamber; 3. Outer water cooling jacket; 4. First water inlet pipe; 5. First water outlet pipe; 6. Inner water cooling channel; 7. Second water inlet pipe; 8. Second water outlet pipe; 9. Foaming nozzle; 10. Heat insulation protective sleeve; 11. Spiral guide plate; 12. Turbulence protrusion; 13. Temperature sensor; 14. Temperature display screen; 15. Flow control valve; 16. Adjustment knob; 17. Raw material input pipe; 18. Check valve; 19. Sealing flange; 20. High temperature resistant sealing ring; 21. Mixing spiral core; 22. Spiral mixing groove; 23. Manifold; 24. Main drain pipe; 25. Water temperature sensor. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The following is in conjunction with the appendix Figure 1-4 This document provides a detailed description of the technical solutions provided in each embodiment of the present invention.

[0026] This utility model embodiment provides an internally and externally water-cooled foaming gun head, including a gun head body 1, a raw material mixing chamber 2 fixedly installed at one end of the gun head body 1, an external water cooling sleeve 3 fixedly installed on the outside of the raw material mixing chamber 2, a first water inlet pipe 4 fixedly installed on the top of the external water cooling sleeve 3, and a first water outlet pipe 5 fixedly installed on the bottom of the external water cooling sleeve 3.

[0027] An internal water cooling channel 6 is provided on the inner side of the gun head body 1. A second water inlet pipe 7 is fixedly installed at one end of the internal water cooling channel 6, and a second water outlet pipe 8 is fixedly installed at the other end of the internal water cooling channel 6. The internal water cooling channel 6 is distributed around the inner side of the raw material mixing chamber 2.

[0028] In this embodiment, a foaming nozzle 9 is fixedly installed at one end of the raw material mixing chamber 2, and a heat insulation protective sleeve 10 is sleeved on the outside of the foaming nozzle 9. The heat insulation protective sleeve 10 is fixedly connected to the outer water cooling sleeve 3.

[0029] Furthermore, the outer water-cooling jacket 3 and the inner water-cooling channel 6 form a dual cooling system. The outer water-cooling jacket wraps around the outside of the raw material mixing chamber 2, and the inner water-cooling channel is distributed around the inside of the mixing chamber. Heat is carried away from both the inside and outside simultaneously, which improves the heat dissipation efficiency compared to a single cooling method and effectively avoids premature solidification of raw materials and clogging of the nozzle.

[0030] In this embodiment, a spiral guide plate 11 is fixedly installed on the inner side of the outer water cooling jacket 3. The spiral guide plate 11 is spirally distributed along the inner wall of the outer water cooling jacket 3. The first water inlet pipe 4 and the first water outlet pipe 5 are located at the two ends of the spiral guide plate 11, respectively.

[0031] Furthermore, the spiral guide plate 11 inside the outer water cooling jacket 3 guides the cooling water to flow along the spiral path, extending the heat exchange time; the turbulence protrusion 12 of the inner water cooling channel 6 breaks the laminar flow state of the water and enhances the turbulent heat exchange effect; the combination of the two results in a lower temperature difference in each area of ​​the mixing chamber, solving the problem of local overheating in traditional cooling methods.

[0032] In this embodiment, multiple turbulence protrusions 12 are fixedly installed on the inner side of the inner water cooling channel 6, and the turbulence protrusions 12 are evenly distributed on the outer side wall of the raw material mixing chamber 2.

[0033] In this embodiment, a temperature sensor 13 is fixedly installed on the outer side of the nozzle body 1, and the detection end of the temperature sensor 13 extends to the inner side of the raw material mixing chamber 2. A temperature display screen 14 is fixedly installed on the outer side of the nozzle body 1, and the temperature sensor 13 is electrically connected to the temperature display screen 14.

[0034] Furthermore, the temperature sensor 13 monitors the temperature inside the raw material mixing chamber 2 in real time and displays it intuitively through the temperature display screen 14; the flow control valve 15 on the first water inlet pipe 4 and the second water inlet pipe 7 can precisely control the cooling water flow through the adjustment knob 16 to achieve dynamic adjustment of the cooling intensity, ensuring stable raw material reaction temperature and reducing foaming ratio deviation.

[0035] In this embodiment, a flow control valve 15 is fixedly installed on the outer side of both the first water inlet pipe 4 and the second water inlet pipe 7, and an adjustment knob 16 is fixedly installed on the outer side of the flow control valve 15.

[0036] In this embodiment, a raw material input pipe 17 is fixedly installed at the other end of the nozzle body 1. There are two raw material input pipes 17, and both raw material input pipes 17 are connected to the raw material mixing chamber 2. A one-way valve 18 is fixedly installed on the outside of the raw material input pipe 17. A sealing flange 19 is fixedly installed at the connection between the outer water cooling jacket 3 and the nozzle body 1. A high-temperature resistant sealing ring 20 is provided on the inner side of the sealing flange 19.

[0037] Furthermore, the sealing flange 19 and the high-temperature resistant sealing ring 20 ensure the sealing of the connection between the outer water cooling jacket 3 and the gun head body 1, preventing cooling water leakage; the heat insulation protective sleeve 10 reduces heat loss from the foaming nozzle 9, while preventing operators from being burned by contact with high-temperature components; the manifold 23 and the main drain pipe 24 centrally discharge cooling water, which facilitates system integration, reduces equipment maintenance difficulty, and extends the overall service life of the gun head.

[0038] In this embodiment, a mixing spiral core 21 is fixedly installed on the inner side of the foaming nozzle 9, and a spiral mixing groove 22 is opened on the outer side of the mixing spiral core 21. A manifold 23 is fixedly installed on the outer side of the first water outlet pipe 5 and the second water outlet pipe 8. A main drain pipe 24 is fixedly installed at one end of the manifold 23, and a water temperature sensor 25 is fixedly installed on the outer side of the main drain pipe 24.

[0039] Furthermore, the mixing spiral core 21 and spiral mixing groove 22 inside the foaming nozzle 9 further mix the raw materials before they are sprayed out, and with the help of a stable cooling environment, the density and uniformity of the foamed product are improved; the one-way valve 18 prevents the raw materials from flowing back, ensuring the continuity and stability of the raw material delivery.

[0040] Specifically, the outer water-cooling jacket 3 and the inner water-cooling channel 6 form a dual cooling system. The outer water-cooling jacket wraps around the outside of the raw material mixing chamber 2, while the inner water-cooling channel is distributed around the inside of the mixing chamber. Heat is carried away from both the inside and outside simultaneously, which improves the heat dissipation efficiency compared to a single cooling method and effectively prevents the raw material from solidifying prematurely and the nozzle from clogging. The spiral guide plate 11 inside the outer water-cooling jacket 3 guides the cooling water to flow along the spiral path, extending the heat exchange time. The turbulence protrusions 12 in the inner water-cooling channel 6 break the laminar flow state of the water and enhance the turbulent heat exchange effect. The combination of the two results in a lower temperature difference in different areas of the mixing chamber, solving the problem of local overheating that exists in traditional cooling methods.

[0041] Temperature sensor 13 monitors the temperature inside raw material mixing chamber 2 in real time and displays it intuitively on temperature display screen 14; flow control valve 15 on the first water inlet pipe 4 and the second water inlet pipe 7 can precisely control the cooling water flow through adjustment knob 16 to achieve dynamic adjustment of cooling intensity, ensuring stable raw material reaction temperature and reducing foaming ratio deviation; sealing flange 19 and high-temperature resistant sealing ring 20 ensure the sealing of the connection between the outer water cooling jacket 3 and the gun head body 1 to prevent cooling water leakage; heat insulation protective sleeve 10 reduces heat loss from foaming nozzle 9 and prevents operators from being burned by contact with high-temperature components; manifold 23 and main drain pipe 24 centrally discharge cooling water, which facilitates system integration, reduces equipment maintenance difficulty, and extends the overall service life of the gun head;

[0042] The mixing spiral core 21 and spiral mixing groove 22 inside the foaming nozzle 9 further mix the raw materials before they are sprayed out. Combined with a stable cooling environment, this improves the density and uniformity of the foamed product. The one-way valve 18 prevents the raw materials from flowing back, ensuring the continuity and stability of the raw material delivery.

[0043] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A water-cooled foaming gun head, characterized in that, include: The gun head body (1) has a raw material mixing chamber (2) fixedly installed at one end, an outer water cooling jacket (3) fixedly installed on the outside of the raw material mixing chamber (2), a first water inlet pipe (4) fixedly installed on the top of the outer water cooling jacket (3), and a first water outlet pipe (5) fixedly installed on the bottom of the outer water cooling jacket (3). An internal water cooling channel (6) is provided on the inner side of the gun head body (1). A second water inlet pipe (7) is fixedly installed at one end of the internal water cooling channel (6), and a second water outlet pipe (8) is fixedly installed at the other end of the internal water cooling channel (6). The internal water cooling channel (6) is distributed around the inner side of the raw material mixing chamber (2).

2. The internally and externally water-cooled foaming gun head according to claim 1, characterized in that, A foaming nozzle (9) is fixedly installed at one end of the raw material mixing chamber (2). A heat insulation protective sleeve (10) is fitted on the outside of the foaming nozzle (9). The heat insulation protective sleeve (10) is fixedly connected to the outer water cooling sleeve (3).

3. The internally and externally water-cooled foaming gun head according to claim 1, characterized in that, A spiral guide plate (11) is fixedly installed on the inner side of the outer water cooling jacket (3). The spiral guide plate (11) is spirally distributed along the inner wall of the outer water cooling jacket (3). The first water inlet pipe (4) and the first water outlet pipe (5) are located at the two ends of the spiral guide plate (11).

4. The internally and externally water-cooled foaming gun head according to claim 1, characterized in that, Multiple turbulence protrusions (12) are fixedly installed on the inner side of the internal water cooling channel (6), and the turbulence protrusions (12) are evenly distributed on the outer side wall of the raw material mixing chamber (2).

5. The internally and externally water-cooled foaming gun head according to claim 1, characterized in that, A temperature sensor (13) is fixedly installed on the outside of the gun head body (1). The detection end of the temperature sensor (13) extends to the inside of the raw material mixing chamber (2). A temperature display screen (14) is fixedly installed on the outside of the gun head body (1). The temperature sensor (13) and the temperature display screen (14) are electrically connected.

6. The internally and externally water-cooled foaming gun head according to claim 1, characterized in that, A flow control valve (15) is fixedly installed on the outside of the first water inlet pipe (4) and the second water inlet pipe (7), and an adjustment knob (16) is fixedly installed on the outside of the flow control valve (15).

7. The internally and externally water-cooled foaming gun head according to claim 1, characterized in that, The other end of the gun head body (1) is fixedly installed with a raw material input pipe (17). There are two raw material input pipes (17), and both raw material input pipes (17) are connected to the raw material mixing chamber (2). A one-way valve (18) is fixedly installed on the outside of the raw material input pipe (17). A sealing flange (19) is fixedly installed at the connection between the outer water cooling jacket (3) and the gun head body (1). A high-temperature resistant sealing ring (20) is provided on the inner side of the sealing flange (19).

8. The internally and externally water-cooled foaming gun head according to claim 2, characterized in that, A mixing spiral core (21) is fixedly installed on the inner side of the foaming nozzle (9), and a spiral mixing groove (22) is opened on the outer side of the mixing spiral core (21). A manifold (23) is fixedly installed on the outer side of the first water outlet pipe (5) and the second water outlet pipe (8). A main drain pipe (24) is fixedly installed at one end of the manifold (23), and a water temperature sensor (25) is fixedly installed on the outer side of the main drain pipe (24).

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