A multi-speed integrated PU perfusion machine

Abstract

The present invention discloses a multi-speed integrated PU perfusion machine in the field of sponge perfusion machine equipment, which includes a fixed frame. A main material box is arranged on the fixed frame, and a stirring motor is arranged on the main material box. The output end of the stirring motor is fixedly connected with a main stirring shaft. The upper part of the main stirring shaft is fixedly connected with a gear ring through a bracket. The gear ring is meshed and connected with a driven gear, and the driven gear is fixedly connected to the upper part of a driven stirring shaft. The upper end of the driven stirring shaft is installed on the cover plate of the main material box through a bearing. The lower part of the driven stirring shaft is fixedly connected with a second spiral stirring blade, and the second spiral stirring blade extends to the bottom of the main material box. The lower part of the main stirring shaft is fixedly connected with a first spiral stirring blade, and the first spiral stirring blade extends to the bottom of the main material box. An annular pipe is arranged between the first spiral stirring blade and the second spiral stirring blade, and a groove cavity is formed between the annular pipe and the bottom of the main material box. This structure can simultaneously provide glues with different foaming degrees to obtain different foam layers for forming PU sponges.

Description

Technical Field

[0001] The present invention relates to the field of sponge perfusion machine equipment, and specifically to a multi-speed integrated PU perfusion machine. Background Art

[0002] PU sponge is made of PU, that is, polyurethane, and soft foam is processed through a certain process. It is mainly used for decoration such as seat cushions and mattresses. Its pyrolysis temperature is generally 255 degrees Celsius. It has good elasticity and good recovery ability under pressure, so it is widely used. Before the polyurethane is formed into a sponge, it generally needs to be stirred and foamed, and then the glue is poured onto the forming mold to form. When the sponge is formed, foam layers with different foaming degrees are often required. For example, a relatively soft foam layer is formed on the surface, and the bottom still maintains the original state of the foam. The research results can, on the one hand, provide reliable comfort, and at the same time, reduce the weight of the formed sponge.

[0003] Existing glue filling machines have single functions. For example, the liquid extraction operation only realizes the function of filling the glue into the forming mold, and cannot realize the above functions, nor is it convenient for operators to operate and control the glue filling. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-speed integrated PU perfusion machine to solve the problem in the above background art that different foaming degrees of glue cannot be provided simultaneously to obtain different foam layers for forming PU sponges.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A multi-speed integrated PU pouring machine, including a fixed frame, a main material box is arranged on the fixed frame, a stirring motor is arranged on the main material box, the output end of the stirring motor is fixedly connected with a main stirring shaft, a gear ring is fixedly connected to the upper part of the main stirring shaft through a bracket, the gear ring is meshed with a driven gear, the driven gear is fixedly connected to the upper part of a driven stirring shaft, the upper end of the driven stirring shaft is installed on the cover plate of the main material box through a bearing, a second spiral stirring blade is fixedly connected to the lower part of the driven stirring shaft, and the second spiral stirring blade extends to the bottom of the main material box. A first spiral stirring blade is fixedly connected to the lower part of the main stirring shaft, and the first spiral stirring blade extends to the bottom of the main material box. An annular pipe is arranged between the first spiral stirring blade and the second spiral stirring blade. A groove cavity is formed between the annular pipe and the bottom of the main material box, and the outer circle of the first spiral stirring blade is located in the groove cavity. The bottom of the groove cavity is communicated with a first discharge pipe. A second gas path channel is opened in the pipe wall of the annular pipe, and the air outlet direction of the second gas path channel is into the groove cavity and upward along the upper end surface of the annular pipe. A first gas path channel for inflating air into the box is arranged on the box wall of the main material box. Both the first gas path channel and the second gas path channel extend outside the main material box through pipes. A second discharge pipe is communicated with the cavity formed between the inner wall of the main material box and the outer wall of the annular pipe.

[0007] As a further scheme of the present invention: the rotation directions of the first spiral stirring blade and the second spiral stirring blade are opposite, and the first spiral stirring blade rotates towards the first discharge pipe. The first spiral stirring blade can accelerate the filling of the raw material rubber liquid towards the discharge port direction, and the second spiral stirring blade can make the raw material rubber liquid fill in the opposite direction, increasing the foaming time of the raw material rubber liquid at the second spiral stirring blade in the main material box. In this way, the rubber liquids at the first spiral stirring blade and the second spiral stirring blade can have different stirring times, and the difference value of the foaming degree can be increased.

[0008] As a further scheme of the present invention: a filter screen groove is arranged at the discharge end of the groove cavity. A filter screen can be placed in the filter screen groove to filter the foamed foaming agent. Different sizes of filter screen holes made of different materials can obtain foaming agents with different foaming volumes.

[0009] As a further scheme of the present invention: a secondary material box is arranged on one side of the main material box. The discharge port of the secondary material box is sequentially communicated with a proportional pressure flow control valve, a gear pump, and the feed port of the main material box through pipes. Through the pumping of the gear pump, the secondary material in the secondary material box can flow into the main material box. At the same time, due to the action of the proportional pressure flow control valve, different amounts or proportions of secondary materials can flow into the main material box, enabling the stirring and pouring operations of raw rubber materials with different ratios, and improving the function of the pouring machine.

[0010] As a further solution of the present invention: there are multiple feeding ports, and there are multiple secondary material boxes. The multiple feeding ports are respectively used to connect the multiple secondary material boxes and the main material box. This is mainly for the convenience of feeding.

[0011] As a further solution of the present invention: the fixing frame is arranged on the trolley. At one end of the trolley away from the main material box, there is a power supply box. A control panel is arranged on the power supply box. The control panel faces forward. A telescopic rod for supporting the perfusion machine gun head is arranged on the back side of the power supply box close to the control panel. In this way, the operator can, in front of the trolley, control the buttons on the control panel with one hand while holding the perfusion machine gun head mounted on the telescopic rod to perform glue perfusion on the mold that needs to be glued.

[0012] As a further solution of the present invention: the first gas path channel includes an in-pipe gas path channel arranged inside the pipe wall of the main material box and a first annular circular pipe arranged outside the main material box. The in-pipe gas path channel is connected to the first annular circular pipe. A pipe extending outside the main material box is connected to the first annular circular pipe. The first annular circular pipe facilitates connecting all the in-pipe gas path channels inside the pipe wall of the main material box and connecting them to the external high-pressure pump pipeline.

[0013] As a further solution of the present invention: the second gas path channel includes a groove-in gas path channel arranged inside the annular pipe and a second annular circular pipe arranged at the bottom of the annular pipe. A pipe extending outside the main material box is connected to the second annular circular pipe. The second annular circular pipe facilitates connecting all the second annular circular pipes at the bottom of the annular pipe and connecting them to the external high-pressure pump pipeline.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. In the present invention, the main stirring shaft drives the first spiral stirring blade to rotate through the stirring motor, and the driven stirring shaft is driven to rotate through the gear ring, driving the second spiral stirring blade to rotate, so that the first spiral stirring blade and the second spiral stirring blade rotate relatively, realizing sufficient stirring of the raw materials for glue perfusion. During the stirring process, different amounts and pressures of foaming agent and air are filled into the first gas path channel and the second gas path channel through an external high-pressure pump. In addition, since the first spiral stirring blade and the second spiral stirring blade can obtain different stirring speeds through the tooth number ratio of the driven gear and the gear ring, different stirring speeds can also obtain foam layers with different foaming degrees, so that the glue perfusion raw materials in the groove cavity and the glue perfusion raw materials arranged outside the groove cavity obtain different foaming degrees, and are respectively filled into the mold cavity through the first discharge pipe and the second discharge pipe, so that glues with different foaming degrees can be provided simultaneously to obtain different foam layers for forming PU sponges.

[0016] 2. In the present invention, the first spiral stirring blade can accelerate the charging of the raw material glue liquid towards the discharge port, and the second spiral stirring blade can cause the raw material glue liquid to be charged in the opposite direction, increasing the foaming time of the raw material glue liquid at the second spiral stirring blade in the main material tank. In this way, the glue liquids at the first spiral stirring blade and the second spiral stirring blade can have different stirring times, and the difference value of the foaming degree can be increased.

[0017] 3. Through the pumping of the gear pump, the secondary material in the material tank can flow into the main material tank. At the same time, due to the function of the proportional pressure flow control valve, different amounts or proportions of secondary material can flow into the main material tank, enabling the stirring and glue filling operations for raw rubber materials with different ratios, thereby improving the function of this filling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a schematic top view structural diagram of the present invention;

[0020] Figure 3 is a schematic connection diagram at the main stirring shaft of the present invention;

[0021] Figure 4 is a schematic structural diagram of the main material tank of the present invention;

[0022] Figure 5 is Figure 4 an enlarged schematic diagram at position A in

[0023] In the figure: 1, fixed frame; 101, feed inlet; 2, main material tank; 3, stirring motor; 4, main stirring shaft; 5, support; 6, gear ring; 7, driven gear; 8, driven stirring shaft; 9, second spiral stirring blade; 10, first spiral stirring blade; 11, annular pipe; 12, groove cavity; 13, first discharge pipe; 14, second gas path channel; 141, in-groove gas path channel; 142, second annular circular pipe; 15, first gas path channel; 151, in-pipe gas path channel; 152, first annular circular pipe; 16, second discharge pipe; 17, filter screen groove; 18, secondary material tank; 19, proportional pressure flow control valve; 20, gear pump; 21, trolley; 22, power supply box; 23, control panel; 24, telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Example 1. Refer to Figures 2 to 5 , a multi-speed integrated PU pouring machine, including a fixed frame 1, a main material box 2 is arranged on the fixed frame 1, a stirring motor 3 is arranged on the main material box 2, and it is characterized in that: the output end of the stirring motor 3 is fixedly connected with a main stirring shaft 4, the upper part of the main stirring shaft 4 is fixedly connected with a gear ring 6 through a bracket 5, the gear ring 6 is meshed with a driven gear 7, the driven gear 7 is fixedly connected to the upper part of a driven stirring shaft 8, the upper end of the driven stirring shaft 8 is installed on the cover plate of the main material box 2 through a bearing, the lower part of the driven stirring shaft 8 is fixedly connected with a second spiral stirring blade 9, and the second spiral stirring blade 9 extends to the bottom of the main material box 2, the lower part of the main stirring shaft 4 is fixedly connected with a first spiral stirring blade 10, and the first spiral stirring blade 10 extends to the bottom of the main material box 2, an annular pipe 11 is arranged between the first spiral stirring blade 10 and the second spiral stirring blade 9, a groove cavity 12 is formed between the annular pipe 11 and the bottom of the main material box 2, and the outer circle of the first spiral stirring blade 10 is located in the groove cavity 12, the bottom of the groove cavity 12 is communicated with a first discharge pipe 13, a second gas path channel 14 is opened in the pipe wall of the annular pipe 11, the air outlet direction of the second gas path channel 14 is into the groove cavity 12 and upward along the upper end surface of the annular pipe 11, a first gas path channel 15 for inflating air into the box is arranged on the box wall of the main material box 2, both the first gas path channel 15 and the second gas path channel 14 extend to the outside of the main material box 2 through pipes, and a second discharge pipe 16 is communicated with the cavity formed between the inner wall of the main material box 2 and the outer wall of the annular pipe 11.

[0026] Driven by the stirring motor 3 or other driving mechanisms, the main stirring shaft 4 drives the first spiral stirring blade 10 to rotate, and the driven stirring shaft 8 is driven to rotate through the gear ring 6, driving the second spiral stirring blade 9 to rotate, so that the first spiral stirring blade 10 and the second spiral stirring blade 9 rotate relatively, realizing full stirring of the raw materials for pouring glue. During the stirring process, different amounts and pressures of foaming agents and air are filled into the first gas path channel 15 and the second gas path channel 14 through an external high-pressure pump. In addition, since the first spiral stirring blade 10 and the second spiral stirring blade 9 can obtain different stirring speeds through the tooth number ratio of the driven gear 7 and the gear ring 6, different stirring speeds can also obtain foam layers with different foaming degrees, so that the pouring glue raw materials in the groove cavity 12 and the pouring glue raw materials arranged outside the groove cavity 12 obtain different foaming degrees, and are respectively filled into the mold cavity through the first discharge pipe 13 and the second discharge pipe 16, so that glues with different foaming degrees can be provided simultaneously to obtain different foam layers for forming PU sponges.

[0027] Among them, the fixing frame 1 is arranged on the trolley 21. A power supply box 22 is arranged at one end of the trolley 21 away from the main material box 2. A control panel 23 is arranged on the power supply box 22, with the control panel 23 facing forward. A telescopic rod 24 for supporting the perfusion machine gun head is arranged on the back side of the power supply box 22 close to the control panel 23. In this way, the operator can control the buttons on the control panel 23 with one hand in front of the trolley 21 and hold the perfusion machine head placed on the telescopic rod 24 to perform glue perfusion on the mold that needs to be glued. The telescopic rod 24 here can be a manual telescopic rod or an electric telescopic rod, as long as it can meet the requirement of controlling the height of the perfusion machine head.

[0028] The first gas path channel 15 includes an in-pipe gas path channel 151 arranged inside the pipe wall of the main material box 2 and a first annular circular pipe 152 arranged outside the main material box 2. The in-pipe gas path channel 151 is communicated with the first annular circular pipe 152, and a pipe extending outside the main material box 2 is communicated with the first annular circular pipe 152. The first annular circular pipe 152 facilitates connecting all the in-pipe gas path channels 151 inside the pipe wall of the main material box 2 and connecting them to the external high-pressure pump pipeline.

[0029] The second gas path channel 14 includes a groove-in gas path channel 141 arranged inside the annular pipe 11 and a second annular circular pipe 142 arranged at the bottom of the annular pipe 11. A pipe extending outside the main material box 2 is communicated with the second annular circular pipe 142. The second annular circular pipe 142 facilitates connecting all the second annular circular pipes 142 at the bottom of the annular pipe 11 and connecting them to the external high-pressure pump pipeline.

[0030] Example 2, please refer to Figures 3 to 5 , Example 2 further improves the stirring time of the first spiral stirring blade 10 and the second spiral stirring blade 9, that is, the foaming time when the raw material glue liquid contacts the foaming agent and air, on the basis of Example 1. The rotation directions of the first spiral stirring blade 10 and the second spiral stirring blade 9 are opposite, and the first spiral stirring blade 10 rotates towards the first discharge pipe 13. The first spiral stirring blade 10 can accelerate the filling of the raw material glue liquid towards the discharge port, and the second spiral stirring blade 9 can make the raw material glue liquid fill in the opposite direction, increasing the foaming time of the raw material glue liquid at the second spiral stirring blade 9 in the main material box 2. In this way, the glue liquids with different stirring times can be obtained at the first spiral stirring blade 10 and the second spiral stirring blade 9, and the difference value of the foaming degree can be increased.

[0031] Example 3, please refer to Figure 4 , Example 3 further improves the discharge end of the groove cavity 12 on the basis of Example 1, that is, a filter screen groove 17 is arranged at the discharge end of the groove cavity 12. A filter screen can be placed in the filter screen groove 17 to filter the foamed foaming agent. Different sizes of filter screen holes made of different materials can obtain foaming agents with different foaming volumes.

[0032] Example 4, please refer toFigures 1 to 5 , which is an improvement based on Embodiment 1. A secondary material tank 18 is provided on one side of the main material tank 2. The discharge port of the secondary material tank 18 is sequentially connected to a proportional pressure flow control valve 19, a gear pump 20, and the inlet port 101 of the main material tank 2 through a pipeline. Through the pumping of the gear pump 20, the secondary material in the secondary material tank 18 can flow into the main material tank 2. At the same time, due to the function of the proportional pressure flow control valve 19, the model of the proportional pressure flow control valve 19 here can be EFBG-03. Of course, it can also be other proportional valves that can achieve the proportional distribution of secondary materials. Therefore, different amounts or proportions of secondary materials flow into the main material tank 2, enabling the stirring and glue filling operations of raw rubber materials with different ratios, and improving the function of this filling machine.

[0033] Among them, there are multiple inlet ports 101 and multiple secondary material tanks 18. The multiple inlet ports 101 are respectively used to connect the multiple secondary material tanks 18 and the main material tank 2. This is mainly for the convenience of feeding.

[0034] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A multi-speed integrated PU perfusion machine, comprising a fixed frame (1), a main material box (2) is arranged on the fixed frame (1), and a stirring motor (3) is arranged on the main material box (2), and it is characterized in that: The output end of the stirring motor (3) is fixedly connected with a main stirring shaft (4). The upper part of the main stirring shaft (4) is fixedly connected with a gear ring (6) through a bracket (5). The gear ring (6) is meshed and connected with a driven gear (7). The driven gear (7) is fixedly connected to the upper part of a driven stirring shaft (8). The upper end of the driven stirring shaft (8) is installed on the cover plate of the main material box (2) through a bearing. The lower part of the driven stirring shaft (8) is fixedly connected with a second spiral stirring blade (9), and the second spiral stirring blade (9) extends to the bottom of the main material box (2). The lower part of the main stirring shaft (4) is fixedly connected with a first spiral stirring blade (10), and the first spiral stirring blade (10) extends to the bottom of the main material box (2). An annular pipe (11) is arranged between the first spiral stirring blade (10) and the second spiral stirring blade (9). A groove cavity (12) is formed between the annular pipe (11) and the bottom of the main material box (2), and the outer ring of the first spiral stirring blade (10) is located in the groove cavity (12). The bottom of the groove cavity (12) is communicated with a first discharge pipe (13). A second gas path channel (14) is opened in the pipe wall of the annular pipe (11). The air outlet direction of the second gas path channel (14) is into the groove cavity (12) and upward along the upper end surface of the annular pipe (11). A first gas path channel (15) for inflating air into the box is arranged on the box wall of the main material box (2). Both the first gas path channel (15) and the second gas path channel (14) extend outside the main material box (2) through pipes. A second discharge pipe (16) is communicated with the cavity formed between the inner wall of the main material box (2) and the outer wall of the annular pipe (11); wherein, the first spiral stirring blade (10) and the second spiral stirring blade (9) obtain different stirring speeds through the tooth number ratio of the driven gear (7) and the gear ring (6). Different stirring speeds obtain foam layers with different foaming degrees, so that the glue filling materials in the groove cavity (12) and the glue filling materials arranged outside the groove cavity (12) obtain different foaming degrees, and are respectively filled into the mold cavity through the first discharge pipe (13) and the second discharge pipe (16), so as to be able to simultaneously provide glues with different foaming degrees to obtain different foam layers for molding PU sponges.

2. The multi-speed integrated PU perfusion machine according to claim 1, wherein: The rotation directions of the first spiral stirring blade (10) and the second spiral stirring blade (9) are opposite, and the first spiral stirring blade (10) rotates towards the first discharge pipe (13).

3. A multi-speed integrated PU perfusion machine according to claim 1, characterized in that: A filter screen groove (17) is arranged at the discharge end of the groove cavity (12).

4. A multi-speed integrated PU perfusion machine according to claim 1, characterized in that: A secondary material box (18) is arranged on one side of the main material box (2). The discharge port of the secondary material box (18) is sequentially communicated with a proportional pressure flow control valve (19), a gear pump (20) and the feed inlet (101) of the main material box (2) through a pipe.

5. The multi-speed integrated PU perfusion machine according to claim 4, characterized in that: There are multiple feed inlets (101), and there are multiple secondary material boxes (18). The multiple feed inlets (101) are respectively used to communicate the multiple secondary material boxes (18) and the main material box (2).

6. A multi-speed integrated PU perfusion machine according to claim 1, characterized in that: The fixing bracket (1) is arranged on the trolley (21). A power supply box (22) is arranged at one end of the trolley (21) far away from the main material box (2). A control panel (23) is arranged on the power supply box (22). The control panel (23) faces forward. A telescopic rod (24) for supporting the perfusion machine gun head is arranged on the back side of the power supply box (22) close to the control panel (23).

7. A multi-speed integrated PU pouring machine according to claim 1, characterized in that: The first gas path channel (15) includes an in-pipe gas path channel (151) arranged inside the pipe wall of the main material box (2) and a first annular round pipe (152) arranged outside the main material box (2). The in-pipe gas path channel (151) is communicated with the first annular round pipe (152). A pipe extending outside the main material box (2) is communicated with the first annular round pipe (152).

8. A multi-speed integrated PU perfusion machine according to claim 1, characterized in that: The second gas path channel (14) includes a groove-in gas path channel (141) arranged inside the annular pipe (11) and a second annular round pipe (142) arranged at the bottom of the annular pipe (11). A pipe extending outside the main material box (2) is communicated with the second annular round pipe (142).

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