A kind of pre-swelling equipment for preparing latex-free environment-friendly carpet fiber

Abstract

This utility model relates to the field of carpet production and processing technology. A pre-expansion device for preparing latex-free environmentally friendly carpet fibers includes an expansion chamber with an inlet at the top and an outlet at the bottom. An inner spiral blade is located at the center of the expansion chamber, and an outer spiral blade is located on the outer side of the inner spiral blade. A pre-expansion device is located at the top of the expansion chamber, and a drive module connected to the inner and outer spiral blades is located at the bottom of the expansion chamber. This utility model provides a pre-expansion device for preparing latex-free environmentally friendly carpet fibers that is easy to control, can simultaneously perform mixing and pre-expansion processing, improves production efficiency to a certain extent, and can meet higher production demands. It solves the technical problems of existing carpet fiber mixing equipment, which has a simple structure, usually uses single-shaft stirring, easily leads to fiber stratification and uneven additive distribution, and requires a separate expansion process, thus failing to meet higher production requirements.

Description

Technical Field

[0001] This utility model relates to the field of carpet production and processing technology, and in particular to a pre-expansion device for preparing latex-free environmentally friendly carpet fibers. Background Technology

[0002] With economic development and rising living standards, carpets are increasingly used in daily life, and different types of carpets are produced to meet different needs.

[0003] Currently, carpet fiber mixing equipment uses single-shaft mixing, which easily leads to fiber stratification and uneven additive distribution; subsequent independent expansion processes are required, which consume a lot of energy and result in low fiber bonding strength, thus necessitating improvement. Utility Model Content

[0004] This utility model provides a pre-expansion device for preparing latex-free environmentally friendly carpet fibers that is easy to control, can simultaneously perform mixing and pre-expansion processing, improves production efficiency to a certain extent, and can meet higher production demands. It solves the technical problems of existing carpet fiber mixing equipment, which has a simple structure, usually adopts single-shaft stirring, which easily leads to fiber stratification and uneven distribution of additives, requiring a separate expansion process afterward, and cannot meet higher production demands.

[0005] The above-mentioned technical problem of this utility model is solved by the following technical solution: a pre-expansion device for preparing latex-free environmentally friendly carpet fibers, including an expansion chamber, wherein the top of the expansion chamber is provided with a feed inlet and the bottom of the expansion chamber is provided with a discharge outlet; an inner spiral blade is provided in the center of the expansion chamber, and an outer spiral blade is provided on the outside of the inner spiral blade, the inner spiral blade and the outer spiral blade are staggered, and the rotation directions of the inner spiral blade and the outer spiral blade are opposite; a pre-expansion device is provided at the top of the expansion chamber, and a drive module connected to the inner spiral blade and the outer spiral blade is provided at the bottom of the expansion chamber. Before processing, the additives and materials are quantitatively introduced into the expansion chamber through the feed inlet. During processing, the drive module drives the inner spiral and outer spiral blades inside to rotate. Since the inner spiral blade and the outer spiral blade rotate in opposite directions, the materials will be fully mixed; the pre-expansion device heats and pre-expands the mixture, and the mixture is pre-expanded with stirring and heating, and finally discharged from the discharge outlet.

[0006] Preferably, the inner and outer spiral blades are made of 304 stainless steel with a sandblasted surface. The inner and outer spiral blades are made of 304 stainless steel and sandblasted to prevent rust and material adhesion.

[0007] Preferably, the inner and outer helical blades are welded with hard alloy wear-resistant strips along their edges. These wear-resistant strips effectively enhance the blade strength.

[0008] Preferably, the pre-expansion device includes a double-layer preheating chamber covering the outer wall of the expansion chamber, and the double-layer preheating chamber is filled with heat-conducting oil. The heat-conducting oil in the double-layer preheating chamber can heat and pre-expand the mixture entering the expansion chamber.

[0009] Preferably, the pre-expansion device further includes a steam pipe embedded in the inner wall of the expansion chamber, with air jet holes spaced apart on the surface of the steam pipe. The steam pipe releases steam into the interior for heating and expansion.

[0010] Preferably, the steam pipe is spaced apart from the outer spiral blades. The steam pipe is installed in the gap between the outer spiral blades.

[0011] Preferably, the drive module includes an output motor and a planetary gear set fixed to the bottom of the puffing chamber. During processing, the drive module drives the internal inner and outer helical blades to rotate.

[0012] Preferably, valves are provided at both the inlet and outlet. The valves can be opened or closed as needed during expansion.

[0013] Preferably, a baffle is provided at the feed inlet. Before processing, the additives and materials are quantitatively introduced into the expansion chamber through the feed inlet.

[0014] Therefore, the pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers of this utility model has the following advantages: it is easy to control, and one piece of equipment can carry out mixing and pre-expansion processing at the same time, which improves production efficiency to a certain extent and can meet higher production needs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a pre-expansion device for preparing latex-free environmentally friendly carpet fibers according to this utility model.

[0016] Figure 2 yes Figure 1 A schematic diagram of the main structure.

[0017] Figure 3 yes Figure 1 A schematic diagram of the left-side cross-sectional structure.

[0018] In the diagram, 1 is the puffing chamber, 2 is the feed inlet, 3 is the discharge outlet, 4 is the inner spiral blade, 5 is the outer spiral blade, 6 is the double-layer preheating chamber, 7 is the steam pipe, and 8 is the steam pump. Detailed Implementation

[0019] The technical solution of the utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0020] Example:

[0021] like Figure 1 and2 As shown in Figure 3, a pre-expansion device for preparing latex-free environmentally friendly carpet fibers includes an expansion chamber 1, an inlet 2 installed at the top of the expansion chamber 1, an outlet 3 installed at the bottom of the expansion chamber 1, valves installed at both the inlet 2 and the outlet 3, and a partition installed at the inlet 2.

[0022] An inner spiral blade 4 is installed in the center of the puffing chamber 1, and an outer spiral blade 5 is rotatably installed on the outside of the inner spiral blade 4. The inner spiral blade 4 and the outer spiral blade 5 are staggered, and the rotation directions of the inner spiral blade 4 and the outer spiral blade 5 are opposite.

[0023] The inner spiral blade 4 and the outer spiral blade 5 are made of 304 stainless steel with sandblasted surfaces, and hard alloy wear-resistant strips are welded to the edges of the inner spiral blade 4 and the outer spiral blade 5.

[0024] The bottom of the puffing chamber 1 is equipped with a drive module that is connected to the inner spiral blade 4 and the outer spiral blade 5. The drive module includes an output motor and a planetary gear set installed at the bottom of the puffing chamber 1. The output shaft of the output motor and the gear shaft are respectively connected to the inner spiral blade 4 and the outer spiral blade.

[0025] A pre-expansion device is installed on the upper section of the extrusion chamber 1; the pre-expansion device includes a double-layer preheating chamber 6 covering the outer wall of the extrusion chamber 1, and the double-layer preheating chamber 6 is filled with heat transfer oil.

[0026] The pre-expansion device also includes a steam pipe 7 embedded in the inner wall of the expansion chamber 1, with air jet holes spaced apart on the surface of the steam pipe 7, and a steam pump 8 connected to the steam pipe 7 installed in the lower section of the expansion chamber 1.

[0027] The steam pipe 7 and the outer spiral blade 5 are spaced apart.

[0028] Before processing, the additives and materials are quantitatively introduced into the expansion chamber 1 through the feed inlet 2. During processing, the drive module drives the inner and outer spiral blades 5 to rotate. Since the inner spiral blades 4 and the outer spiral blades 5 rotate in opposite directions, the materials will be fully mixed.

[0029] The pre-expansion device heats and pre-expands the mixture. As the mixture is stirred and heated, it gradually expands and finally exits from the discharge port 3.

[0030] The specific embodiments described herein are merely illustrative examples of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A pre-expansion device for preparing latex-free environmentally friendly carpet fibers, characterized in that: The device includes an extrusion chamber, with a feed inlet at the top and a discharge outlet at the bottom. An inner spiral blade is located at the center of the chamber, and an outer spiral blade is located outside the inner spiral blade. The inner and outer spiral blades are staggered and rotate in opposite directions. A pre-expansion device is located at the top of the chamber, and a drive module connected to the inner and outer spiral blades is located at the bottom of the chamber.

2. The pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers according to claim 1, characterized in that: The inner and outer spiral blades are made of 304 stainless steel with a sandblasted surface.

3. The pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers according to claim 2, characterized in that: The inner and outer helical blades are welded with hard alloy wear-resistant strips at their edges.

4. The pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers according to claim 1, characterized in that: The pre-expansion device includes a double-layer preheating chamber covering the outer wall of the expansion chamber, and the double-layer preheating chamber is filled with heat transfer oil.

5. The pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers according to claim 4, characterized in that: The pre-expansion device also includes a steam pipe embedded in the inner wall of the expansion chamber, with air jet holes spaced apart on the surface of the steam pipe.

6. The pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers according to claim 5, characterized in that: The steam pipe and the outer spiral blades are spaced apart.

7. The pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers according to claim 1, characterized in that: The drive module includes an output motor and a planetary gear set fixed at the bottom of the puffing chamber.

8. The pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers according to claim 1, characterized in that: Valves are installed at both the inlet and outlet.

9. The pre-expansion equipment for preparing latex-free environmentally friendly carpet fibers according to claim 8, characterized in that: A baffle is provided at the feed inlet.

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