Improved foaming machine high-pressure mixing head

Abstract

The utility model belongs to the technical field of high-pressure mixing heads, and particularly relates to an improved foaming machine high-pressure mixing head which comprises a dustproof connecting pipe. The inner surface wall of the dustproof connecting pipe is fixedly connected with a supporting frame. The inner surface wall of the supporting frame is slidably connected with a sliding damping rod. One end of the sliding damping rod is fixedly connected with a center block; the outer surface wall of the center block is fixedly connected with a connecting rod; the outer surface wall of the connecting rod is fixedly connected with a pressing block; the center block is fixedly connected with a damping spring through a supporting frame. A sealing block is fixedly connected to the inner surface wall of the dustproof connecting pipe, during working, a rubber sealing plate and the sealing block are arranged, then a sliding damping rod slides on the inner surface wall of a supporting frame after a damping spring pushes a pressing block, and at the moment, sealing of the dustproof connecting pipe is achieved after the rubber sealing plate is attached to the sealing block; furthermore, when the mixing head is not connected for use, dust can be effectively prevented from entering the mixing head.

Description

Technical Field

[0001] This utility model belongs to the field of high-pressure mixing head technology, specifically an improved high-pressure mixing head for foaming machines. Background Technology

[0002] The high-pressure mixing head of the foaming machine is the core component of a polyurethane high-pressure foaming machine. It is used to thoroughly mix two raw materials. The mixed material is then injected into a mold under high pressure, where it reacts rapidly to produce polyurethane foam.

[0003] In current technology, the high-pressure mixing head of a foaming machine is usually driven by a hydraulic cylinder to achieve high-pressure mixing of two materials, thereby enabling the two materials to react quickly and form polyurethane foam that is sprayed out from the nozzle.

[0004] Existing high-pressure mixing heads for foaming machines require pipe connections for material transport during use. However, when the mixing head is no longer in use, the pipe connections are exposed to air, making it easy for impurities to enter the mixing head and affecting its subsequent use. Therefore, an improved high-pressure mixing head for foaming machines is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes an improved high-pressure mixing head for a foaming machine.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An improved high-pressure mixing head for a foaming machine, comprising a dustproof connecting pipe; a support frame fixedly connected to the inner wall of the dustproof connecting pipe; a sliding damping rod slidably connected to the inner wall of the support frame; a central block fixedly connected to one end of the sliding damping rod; a connecting rod fixedly connected to the outer wall of the central block; a pressing block fixedly connected to the outer wall of the connecting rod; a damping spring fixedly connected to the central block via the support frame; a sealing block fixedly connected to the inner wall of the dustproof connecting pipe; a rubber sealing plate fixedly connected to one end of the sliding damping rod; and a connecting thread formed on the inner wall of the dustproof connecting pipe.

[0007] Preferably, one end of the dustproof connecting pipe is connected to a hybrid piston sensor; a large hydraulic cylinder is installed at the bottom of the hybrid piston sensor.

[0008] Preferably, a DOP lubrication point is installed on one side of the large oil cylinder; a small oil cylinder is installed on the side of the DOP lubrication point.

[0009] Preferably, the output end of the small oil cylinder is connected to a nozzle; and an auxiliary fixing cap is rotatably connected to the side of the small oil cylinder.

[0010] Preferably, each of the small oil cylinders has a preset slot provided by an auxiliary fixing cap; the nozzle body is slidably connected to the outer wall of the nozzle.

[0011] Preferably, a nozzle connecting inner tube is fixedly connected to the inner surface wall of the nozzle body; a limit plate is fixedly connected to the outer surface wall of the nozzle body.

[0012] Preferably, an adjustment handle is installed at the input end of the large hydraulic cylinder; a material injection piston sensor is provided on the side of the adjustment handle.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides an improved high-pressure mixing head for a foaming machine. By setting a rubber sealing plate and a sealing block, the damping spring pushes the pressing block, causing the sliding damping rod to slide on the inner wall of the support frame. At this time, the rubber sealing plate and the sealing block are in contact to seal the dustproof connecting pipe, thereby effectively preventing dust from entering the interior of the mixing head when it is not in use.

[0015] This utility model provides an improved high-pressure mixing head for a foaming machine. By setting a nozzle body, the nozzle body can control the spraying speed of polyurethane foam. It also features a structure for easy disassembly and fixing, which facilitates changing the nozzle body model and makes cleaning the nozzle body easier. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 This is a perspective view of the small hydraulic cylinder of this utility model;

[0020] Figure 3 This is a perspective view of the large hydraulic cylinder in this utility model;

[0021] Figure 4 This is an enlarged view of point A in this utility model.

[0022] Legend:

[0023] 1. Injection piston sensor; 2. Adjusting handle; 3. Large oil cylinder; 4. DOP lubrication point; 5. Small oil cylinder; 6. Auxiliary fixing cap; 7. Nozzle body; 8. Nozzle connecting inner tube; 9. Limiting plate; 10. Nozzle; 11. Preset slot; 12. Mixing piston sensor; 13. Dustproof connecting pipe; 14. Connecting thread; 15. Pressing block; 16. Center block; 17. Connecting rod; 18. Sliding damping rod; 19. Damping spring; 20. Sealing block; 21. Rubber sealing plate; 22. Support frame. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1-4 This utility model provides an improved high-pressure mixing head for a foaming machine, including a dustproof connecting pipe 13; a support frame 22 is fixedly connected to the inner wall of the dustproof connecting pipe 13; a sliding damping rod 18 is slidably connected to the inner wall of the support frame 22; a center block 16 is fixedly connected to one end of the sliding damping rod 18; a connecting rod 17 is fixedly connected to the outer wall of the center block 16; a pressing block 15 is fixedly connected to the outer wall of the connecting rod 17; a damping spring 19 is fixedly connected to the center block 16 via the support frame 22; a sealing block 20 is fixedly connected to the inner wall of the dustproof connecting pipe 13; and one end of the sliding damping rod 18 is fixedly connected to... A rubber sealing plate 21 is connected; the inner wall of the dustproof connecting pipe 13 is provided with a connecting thread 14; during operation, when the mixing head is not in the connected state, the damping spring 19 will cause the sliding damping rod 18 to drive the rubber sealing plate 21 to fit against the sealing block 20, thereby achieving the function of sealing the dustproof connecting pipe 13. In the process of connecting the pipe to the connecting thread 14, the pipe will push up the pressing block 15, thereby causing the center block 16 to compress the damping spring 19, which in turn causes the sliding damping rod 18 to be pushed, causing the rubber sealing plate 21 to separate from the sealing block 20, thereby connecting the pipe to the dustproof connecting pipe 13.

[0027] Furthermore, such as Figure 2 and Figure 3As shown, one end of the dustproof connecting pipe 13 is connected to a mixing piston sensor 12; a large oil cylinder 3 is installed at the bottom of the mixing piston sensor 12; a DOP lubrication point 4 is installed on one side of the large oil cylinder 3; a small oil cylinder 5 is installed on the side of the DOP lubrication point 4; the output end of the small oil cylinder 5 is connected to a nozzle 10; an auxiliary fixing cap 6 is rotatably connected to the side of the small oil cylinder 5; each of the small oil cylinders 5 has a preset slot 11 through the auxiliary fixing cap 6; a nozzle body 7 is slidably connected to the outer wall of the nozzle 10; a nozzle connecting inner tube 8 is fixedly connected to the inner wall of the nozzle body 7; a limit plate 9 is fixedly connected to the outer wall of the nozzle body 7; an adjusting handle 2 is installed at the input end of the large oil cylinder 3; and an injection piston sensor 1 is provided on the side of the adjusting handle 2. During operation, when it is necessary to remove the nozzle body 7, the auxiliary fixing cap 6 can be rotated to align the preset slots 11 with each other, and the limiting plate 9 will no longer be limited by the auxiliary fixing cap 6. At this time, the nozzle body 7 can be removed, and the nozzle connecting inner tube 8 will be separated from the nozzle 10.

[0028] Working principle: When the mixing head is not connected, the damping spring 19 causes the sliding damping rod 18 to drive the rubber sealing plate 21 to fit with the sealing block 20, thereby achieving the function of sealing the dustproof connecting pipe 13. During the connection of the pipe and the connecting thread 14, the pipe will push up the pressing block 15, thereby causing the center block 16 to compress the damping spring 19, which in turn pushes the sliding damping rod 18, causing the rubber sealing plate 21 to separate from the sealing block 20, thereby connecting the pipe with the dustproof connecting pipe 13. When it is necessary to remove the nozzle body 7, the auxiliary fixing cap 6 can be rotated, thereby aligning the preset slots 11 with each other, and the limiting plate 9 is no longer limited by the auxiliary fixing cap 6. At this time, the nozzle body 7 can be removed, and the nozzle connecting inner tube 8 and the nozzle 10 are separated simultaneously.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An improved high-pressure mixing head for a foaming machine, comprising a dustproof connecting pipe (13); characterized in that: The inner wall of the dustproof connecting pipe (13) is fixedly connected to a support frame (22); the inner wall of the support frame (22) is slidably connected to a sliding damping rod (18); one end of the sliding damping rod (18) is fixedly connected to a center block (16); the outer wall of the center block (16) is fixedly connected to a connecting rod (17); the outer wall of the connecting rod (17) is fixedly connected to a pressing block (15); the center block (16) is fixedly connected to a damping spring (19) via the support frame (22); the inner wall of the dustproof connecting pipe (13) is fixedly connected to a sealing block (20); one end of the sliding damping rod (18) is fixedly connected to a rubber sealing plate (21); the inner wall of the dustproof connecting pipe (13) is provided with a connecting thread (14).

2. The improved high-pressure mixing head for a foaming machine as described in claim 1, characterized in that: One end of the dustproof connecting pipe (13) is connected to a hybrid piston sensor (12); a large oil cylinder (3) is installed at the bottom of the hybrid piston sensor (12).

3. The improved high-pressure mixing head for a foaming machine as described in claim 2, characterized in that: A DOP lubrication point (4) is installed on one side of the large oil cylinder (3); a small oil cylinder (5) is installed on the side of the DOP lubrication point (4).

4. The improved high-pressure mixing head for a foaming machine as described in claim 3, characterized in that: The output end of the small oil cylinder (5) is connected to the nozzle (10); the side of the small oil cylinder (5) is rotatably connected to an auxiliary fixing cap (6).

5. The improved high-pressure mixing head for a foaming machine as described in claim 4, characterized in that: Each of the small oil cylinders (5) has a preset slot (11) through an auxiliary fixing cap (6); the outer wall of the nozzle (10) is slidably connected to the nozzle body (7).

6. The improved high-pressure mixing head for a foaming machine as described in claim 5, characterized in that: The inner wall of the nozzle body (7) is fixedly connected to the nozzle connecting inner tube (8); the outer wall of the nozzle body (7) is fixedly connected to the limiting plate (9).

7. An improved high-pressure mixing head for a foaming machine as described in claim 2, characterized in that: An adjustment handle (2) is installed at the input end of the large oil cylinder (3); a material injection piston sensor (1) is provided on the side of the adjustment handle (2).

Images