CN2109404U - Manufacturing equipment of tubular polyurethane artificial leather - Google Patents

Abstract

A manufacturing device for tubular polyurethane artificial leather comprises: an impregnation tank, a coagulation tank, a washing tank, a drying mechanism and a conveying element. The bottom of the impregnation tank has a through hole that passes through the bottom, and a mandrel with a conical top passes through the through hole. There is a gap between the mandrel and the edge of the through hole. The flattened tubular fabric can be guided along the top of the conical mandrel and sleeved on the mandrel, and then input into the impregnation tank in a tubular shape. After being impregnated with a polyurethane mixed liquid, the tubular fabric forms a polyurethane resin layer with a predetermined thickness on the outer periphery of the tubular fabric by passing through the gap between the through hole at the bottom of the impregnation tank and the mandrel.

Description

The utility model relates to a device capable of making tubular woven cloth into tubular polyurethane artificial leather.

The traditional polyurethane artificial leather manufacturing device is to dip the flat woven fabric with predetermined stretchability into an impregnation tank containing polyurethane resin and solvent, and after uniform impregnation, it is sent into a coagulation tank for water and solvent exchange , so that the polyurethane resin layer covering the entire fabric is properly solidified, and then sent to a washing tank to wash off the residual solvent with flowing water, and finally dried to form an elastic layer.

Using the manufacturing device mentioned above, although polyurethane artificial leather can be produced, only flat cloth can be made into flat polyurethane leather, and tubular woven fabric cannot be made into tubular fabric by this method. polyurethane faux leather.

The purpose of this utility model is to provide a kind of manufacturing device of tubular polyurethane artificial leather, thereby solve above-mentioned problem.

The manufacturing device for manufacturing tubular polyurethane artificial leather provided by the utility model includes: a dipping tank, a solidification tank, a washing tank, a drying mechanism and conveying elements. Wherein, the bottom of the dipping tank has a through hole through the bottom, the through hole is crossed by a mandrel with a conical top, there is a gap between the mandrel and the edge of the through hole, the flattened tubular woven cloth It can be guided and sleeved on the mandrel along the top of the conical mandrel and input into the dipping tank in a tubular shape. After impregnating the polyurethane mixture, the tubular woven fabric can be made by using the gap between the through hole at the bottom of the dipping tank and the mandrel. A polyurethane resin layer having a predetermined thickness is formed on the periphery of the urethane.

Yet another aspect of the utility model, the utility model provides a manufacturing device for manufacturing tubular polyurethane artificial leather, wherein a section of the mandrel that passes through the through hole at the bottom of the dipping tank is a shaft that tapers from top to bottom, The mandrel can be moved up or down properly, and the gap between the through hole at the bottom of the dipping tank and the mandrel can be adjusted so that the coating layer on the periphery of the tubular woven fabric has an appropriate thickness.

The utility model will be described in detail below in conjunction with the accompanying drawings and preferred embodiments of the utility model, wherein:

Fig. 1 is the front view of the device of the present utility model;

Fig. 2 is the top view of the utility model roller and mandrel;

Fig. 3 is the side view of the utility model roller and mandrel;

Fig. 4 is the flow chart of using the utility model to manufacture tubular polyurethane artificial leather;

Fig. 5 is the side view of the utility model roller support frame and mandrel.

Referring to Fig. 1, the preferred embodiment of the present utility model generally includes a dipping tank 2, a coagulation tank 3, a washing tank 4, a drying mechanism 5 and conveying elements between the mechanisms. Wherein, the dipping tank 2 is filled with a mixed solution of polyurethane resin, various additives and solvents, while the coagulation tank 3 and the washing tank 4 have suitable water liquid. The utility model is characterized in that the bottom of the dipping tank 2 has a through hole 21 and a mandrel 6 . The top of the mandrel 6 has a conical cone portion 61 , and a downwardly tapered inclined portion 62 is connected between the bottom of the cone portion 61 and the mandrel 6 . Two sets of rollers 71 and 72 are used to respectively clamp appropriate parts of the peripheral edge of the cone 61 and the inclined portion 62 to support the mandrel 6 protruding in the dipping tank 2 and make a section 64 of the mandrel 6 pass through the through hole 21 . When the segment 64 passes through the through hole 21 , there will be a gap 65 between it and the edge of the through hole 21 .

The above two sets of rollers 71, 72 are shown in Figures 2 and 3, the first set of rollers 71 clamps the peripheral position of the appropriate diameter of the cone portion 61, and the second set of rollers 72 clamps the peripheral position of the appropriate diameter of the inclined portion 62 . Wherein, the extension shafts 73, 74 of each group of rollers 71, 72 are respectively connected to a group of gear trains 75, 76 that are meshed with each other, and the two groups of gear trains 75, 76 are connected with an appropriate transmission gear set 77, so that The two sets of rollers 71, 72 are operated synchronously; of course, each of the extension shafts 73, 74 has an appropriate support frame 8 for supporting each of the rollers 71, 72.

For the operation process, please refer to Figure and Figure 4 together. Weaving yarns, threads, etc. into a stretchable tubular woven cloth is sent to the cone 61 at the top of the mandrel 6 from the delivery end. When the tubular woven fabric is output from the output end, it is flat. When the flat woven fabric is guided by the tip of the cone 61 and penetrates the mandrel 6, it is stretched by the mandrel 6 to form a tubular shape. The tubular fabric is conveyed downward due to the rolling of two sets of rollers 71 , 72 around the cone portion 61 and the inclined portion 62 , and gradually enters the dipping tank 2 downward along the mandrel 6 . Then, the woven fabric is dipped in the mixed liquid containing polyurethane resin and co-solvent in the shape of a tube. Of course, the tubular woven fabric is still slowly conveyed downward in the impregnation mixture. Then the tubular woven fabric that has been immersed in the polyurethane mixture will pass through the gap 65 between the through hole 21 at the bottom of the dipping tank 2 and the mandrel 6, and be limited by the gap 65, so that the periphery of the tubular woven fabric is coated with a uniform polyurethane layer. mixed solution. Of course, when the tubular woven fabric is immersed in the polyurethane mixed solution, an appropriate amount of the mixed solution will also be infiltrated on its tube wall.

Afterwards, the tubular woven fabric coated with a uniform polyurethane mixture on the periphery continues to be sent into the coagulation tank 3 in a tubular manner, so as to exchange with water, auxiliary and solvent therein, so that the mixed solution is properly to solidify. When the front end of the tubular woven fabric enters the coagulation tank 3, there will be water entering the pipe, and the inner and outer surfaces of the pipe will have water liquid, so that the pressure of the water liquid on the inner and outer surfaces of the pipe is the same, and the water pressure on the outer surface of the pipe will not be affected. Force and flatten the uncured tubular woven fabric of polyurethane resin on it, so that the auxiliary and solvent of the polyurethane mixture penetrating into the tube wall and the water liquid in the tube can be exchanged. Again, because the amount of the mixed solution infiltrated into the pipe wall is not large, it is easy to completely remove the auxiliary solvent. Therefore, the tubular woven fabric after passing through the coagulation tank 3 can be flattened and transported out in a flat shape, and then sent to the washing tank 4, so that the residual auxiliary and solvent on the outer surface of the tube can be further cleaned. Carry out drying at last, just reach the purpose of utilizing the utility model to manufacture tubular polyurethane artificial leather. Of course, the tubular artificial leather delivered by the washing tank 4 is dried in a drying mechanism, and the used dryer can be equipped with a vacuum pump to completely drain the residual water in the tubular artificial leather.

Of course, the utility model is not limited to the above-mentioned embodiments. As shown in Figure 5, a section 64 passing through the through hole 21 on the mandrel 6 can be made into a tapered shape from top to bottom, and the support frame 8 used to support each of the rollers 71, 72 can be provided with a Adjust the adjustment rod 81 that the support frame rises or falls, so that the two sets of rollers 71, 72 move up or down, so that the mandrel 6 can be properly clamped and adjusted to move up or down, so that the mandrel 6 passes through the through hole The gap 65 formed by the edge of the through hole 21 at the bottom of the immersion tank 2 and the section 64 of 21 can also be adjusted in size, so that the thickness of the polyurethane resin layer formed on the periphery of the tubular woven cloth can be changed.

Claims (2)

1. A manufacturing device for manufacturing tubular polyurethane artificial leather, comprising: a dipping tank, a solidification tank, a washing tank, a drying mechanism and conveying elements between the mechanisms, and polyurethane resin and A mixture of auxiliary and solvent, while the coagulation tank has a suitable water liquid, which is characterized in that: The bottom of the immersion tank has a through hole through the bottom, the through hole is passed through by a mandrel, there is an appropriate gap between the mandrel passing through the through hole and the edge of the through hole, and the top of the mandrel has a conical cone , the bottom end of the tapered portion extends a downwardly tapering inclined portion, and a set of rollers for supporting the mandrel and synchronously rolling are respectively provided on the peripheral edges of the tapered portion and the inclined portion. 2. The manufacturing device of tubular polyurethane artificial leather according to claim 1, wherein the section where the mandrel passes through the through hole at the bottom of the dipping tank is tapered from top to bottom, and the support frame supporting the roller group has a An adjustment rod used to adjust the rise or fall of the support frame.

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