Automatic steam pre-shrinking machine for down textile fabric

Abstract

This invention relates to an automated steam pre-shrinking machine for down textile fabrics. The steam pre-shrinking machine includes a housing; a steam generating assembly disposed within the housing; a drying assembly disposed within the housing; and a humidifying assembly disposed within the housing. The humidifying assembly utilizes steam generated by the steam generating assembly to humidify the down textile fabric. The humidifying assembly includes an air inlet pipe connected to the steam generating assembly and a driven roller. The air inlet pipe is connected to a roller shaft, which has a cavity and an air outlet groove communicating with the cavity. A bushing with an exhaust hole is fitted onto the roller shaft. This invention utilizes high-speed steam to permeate the fabric, effectively wetting non-absorbent and thick fabrics, and compresses the fabric to prevent excessive water absorption and drying difficulties, thus effectively improving the efficiency and effect of fabric pre-shrinking.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pre-shrinking machines, and particularly relates to an automatic steam pre-shrinking machine for down textile fabric. BACKGROUND

[0002] After weaving and dyeing and finishing, the fabric is in an unstable state and has potential shrinkage. If such fabric is made into clothes, it will deform and become distorted after washing due to the shrinkage of the length, thereby causing loss to the consumer. Therefore, the fabric should be finished to prevent shrinkage.

[0003] A pre-shrinking machine refers to a finishing process that reduces the shrinkage of fabric after immersion in water through physical methods, also known as mechanical pre-shrinking finishing. During the dyeing and finishing process, the fabric is subjected to tension in the warp direction, and the height of the bending wave in the warp direction is reduced, thereby causing elongation. When hydrophilic fiber fabric is immersed in water, the fiber swells, and the diameter of the warp and weft yarns increases, thereby increasing the height of the bending wave in the warp direction and shortening the length of the fabric, causing the fabric to shrink.

[0004] Some prior art technical solutions for pre-shrinking machines have also appeared, such as a Chinese patent with application number CN201810416173.X, which discloses a fabric pre-shrinking machine for textiles. The first and second water discharge heads arranged alternately can uniformly spray water on the top and bottom surfaces of the flowing fabric, fully and uniformly wetting the inside of the fabric, improving the subsequent pre-shrinking effect, and the discharged water can be collected through the funnel-shaped housing and then discharged through the water outlet pipe into the water storage tank for recycling.

[0005] The water spraying wetting method of the patent using water head is difficult to penetrate into the inside of the fabric for thick or poorly water-absorbing fabric, thereby affecting the pre-shrinking effect. SUMMARY

[0006] The purpose of the present application is to provide an automatic steam pre-shrinking machine for down textile fabric to solve the problems raised in the background art.

[0007] The present application achieves the above-mentioned purpose by the following technical solutions:

[0008] An automatic steam pre-shrinking machine for down textile fabric, comprising:

[0009] a box body;

[0010] a steam generating assembly arranged in the box body;

[0011] a drying assembly arranged in the box body; and

[0012] a humidifying assembly arranged in the box body, which uses the steam generated by the steam generating assembly to humidify the down textile fabric.

[0013] The humidifying assembly comprises an air inlet pipe connected with the steam generating assembly and a driven roller, the roller shaft is provided with a cavity and an air outlet groove in communication with the cavity, the roller shaft is sleeved with a shaft sleeve provided with air holes, and the shaft sleeve and the driven roller sandwich the down textile fabric.

[0014] Preferably, the driven roller is provided with a channel, the driven roller is provided with a plurality of air passages in communication with the channel along the circumferential direction of the driven roller, the end of the air passage close to the channel is hingedly provided with a baffle for preventing backflow of the gas, and the channel is connected with the steam generating assembly through the air pipe.

[0015] Preferably, the driven roller is made of rubber material.

[0016] Preferably, a rotary pipe is arranged between the air inlet pipe and the roller shaft, the rotary pipe is provided with a fan blade, and a support is arranged between the rotary pipe and the shaft sleeve.

[0017] A limiting block is arranged between the air inlet pipe and the roller shaft.

[0018] Preferably, the humidifying assembly further comprises a squeezing roller, and the axis of the squeezing roller is higher than the axis of the shaft sleeve.

[0019] Preferably, a rotating plate and two limiting plates are arranged at the air holes of the shaft sleeve, and the rotating plate can block the air holes when the rotating plate is in contact with the limiting plates.

[0020] Preferably, a return spring is arranged between the rotating plate and one of the limiting plates.

[0021] Preferably, a plurality of water-permeable through holes are arranged on the rotating plate.

[0022] The present application has the following beneficial effects:

[0023] The present application can effectively improve the efficiency and effect of fabric preshrinking by using high-speed steam to permeate the fabric, well wetting the fabric, and avoiding the difficulty in drying caused by excessive water absorption of the fabric. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present application;

[0025] Figure 2 is Figure 1 is an enlarged schematic diagram of position A in FIG. 1;

[0026] Figure 3 is Figure 1 is an enlarged schematic diagram of position B in FIG. 1;

[0027] Figure 4 is a schematic diagram of the steam flow of the humidifying assembly in the present application.

[0028] Figure: 1, box; 2, steam generating assembly; 3, drying assembly; 4, air inlet pipe; 5, driven roller; 6, roller shaft; 7, cavity; 8, air outlet groove; 9, exhaust hole; 10, shaft sleeve; 11, channel; 12, air duct; 13, baffle; 14, rotating pipe; 15, fan blade; 16, bracket; 17, extrusion roller; 18, rotating plate; 19, limiting plate; 20, fabric. DETAILED DESCRIPTION

[0029] The following further describes the present application, it is necessary to point out here that the following detailed description is only used to further illustrate the present application, and cannot be understood as limiting the scope of protection of the present application, those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0030] Example 1

[0031] As shown in the figure, an automatic steam pre-shrinking machine for down textile fabric comprises: Figures 1-4

[0032] a box 1;

[0033] a steam generating assembly 2 arranged in the box 1;

[0034] a drying assembly 3 arranged in the box 1; and

[0035] a humidifying assembly arranged in the box 1, the humidifying assembly uses the steam generated by the steam generating assembly 2 to humidify the down textile fabric 20;

[0036] wherein the humidifying assembly comprises an air inlet pipe 4 connected with the steam generating assembly 2 and a driven roller 5, the air inlet pipe 4 is connected with a roller shaft 6, the roller shaft 6 is provided with a cavity 7 and an air outlet groove 8 in communication with the cavity 7, the roller shaft 6 is sleeved with a shaft sleeve 10 having an exhaust hole 9, and the shaft sleeve 10 and the driven roller 5 sandwich the down textile fabric 20.

[0037] ​It needs to be explained that the fabric 20 is sequentially passed through the humidifying assembly and the drying assembly 3, and the fabric 20 is finally wound on the winding mechanism, and the fabric 20 is moved in the box 1 by the winding mechanism. The fabric 20 moves relative to the shaft sleeve 10 and the driven roller 5, so that the driven roller 5 and the shaft sleeve 10 rotate. The steam generating assembly 2 includes a steam generator and a pump, the steam generator can continuously generate steam, and the pump is used for high-speed steam into the air inlet pipe 4. The high-speed steam in the air inlet pipe 4 enters the cavity 7 of the roller shaft 6 and is sprayed out through the air outlet groove 8 and contacts the fabric 20, the steam contacts the fabric 20 and penetrates the fabric 20, and the water in the steam is absorbed by the fabric 20 in the process of penetrating the fabric 20, so that the fabric 20 can be fully humidified. The humidified fabric 20 is dried by the drying assembly 3, and the pre-shrunk fabric 20 is obtained.

[0038] The driven roller 5 is provided with a channel 11, and a plurality of air channels 12 are arranged on the driven roller 5 in the circumferential direction and are communicated with the channel 11. The end of the air channel 12 close to the channel 11 is hingedly provided with a baffle 13 for preventing backflow of gas. The channel 11 is connected with the steam generating assembly 2 through an air pipe. The steam penetrating the fabric 20 enters the air channel 12 of the driven roller 5 and moves to the baffle 13 through the air channel 12. The steam pushes open the baffle 13 and enters the channel 11, and then enters the air pipe through the channel 11, and finally enters the steam generator. The rotation of the driven roller 5 makes different air channels 12 face the air outlet groove 8. When the air channel 12 misses the air outlet groove 8, the baffle 13 in the air channel 12 reblocks part of the air channel 12 and the channel 11. The steam in the channel 11 cannot return to the air from the channel 11, avoiding waste of steam.

[0039] The driven roller 5 is made of rubber material. When the roller shaft 6 and the driven roller 5 extrude the fabric 20, the driven roller 5 can be deformed to a certain extent, so that the contact part of the driven roller 5 and the roller shaft 6 is more closely attached to the roller shaft 6, and the air channel 12 part of the driven roller 5 is also more closely attached to the air outlet groove 8, further reducing the leakage of steam.

[0040] A rotating pipe 14 is arranged between the air inlet pipe 4 and the roller shaft 6, and a fan blade 15 is arranged in the rotating pipe 14. A support 16 is arranged between the rotating pipe 14 and the shaft sleeve 10. When the high-speed steam flowing in the air inlet pipe 4 passes through the fan blade 15, the fan blade 15 has a tendency to rotate. The fan blade 15 transmits the tendency to rotate to the shaft sleeve 10 through the rotating pipe 14 and the support 16, so that the shaft sleeve 10 has a certain tendency to rotate. The tendency of the shaft sleeve 10 to rotate is not entirely driven by the fabric 20, thereby reducing the difficulty of the fabric 20 passing through the shaft sleeve 10 and the driven roller 5, and avoiding the quality problem of the fabric 20 being pulled and torn;

[0041] The limiting block is arranged between the air inlet pipe 4 and the roller shaft 6, so that the air inlet pipe 4 and the roller shaft 6 are fixedly connected, the roller shaft 6 cannot rotate by itself, the air outlet groove 8 keeps facing the driven roller 5, and steam can smoothly pass through the fabric 20.

[0042] The humidifying assembly further comprises a squeezing roller 17, the axis of the squeezing roller 17 is higher than the axis of the shaft sleeve 10, to avoid that the fabric 20 is excessively soaked and the drying difficulty is increased, the fabric 20 is moved to the squeezing roller 17 after being treated by steam, the squeezing roller 17 and the roller shaft 6 squeeze the fabric 20, so that the excess water on the fabric 20 is squeezed out, and the time required for subsequent drying is reduced.

[0043] The shaft sleeve 10 is provided with a rotating plate 18 and two limiting plates 19 at the exhaust hole 9, the rotating plate 18 can block the exhaust hole 9 when the rotating plate 18 is in contact with the limiting plate 19, the fabric 20 is squeezed when being moved between the shaft sleeve 10 and the squeezing roller 17, so that the fabric 20 is deformed, part of the fabric 20 enters the exhaust hole 9, the fabric 20 entering the exhaust hole 9 squeezes the rotating plate 18, so that the rotating plate 18 is in contact with the limiting plate 19, thereby limiting the fabric 20. The limiting plates 19 and the squeezing roller 17 limit the two ends of the fabric 20 respectively, so that the water in the fabric 20 is more fully squeezed. The limiting plates 19 can also avoid the contact between the fabric 20 and the surface of the roller shaft 6, and prevent the fabric 20 from being unable to move due to excessive friction.

[0044] The rotating plate 18 and one of the limiting plates 19 are provided with a return spring, the rotating center of the rotating plate 18 is eccentrically arranged, the rotating plate 18 is automatically opened when being moved below the roller shaft 6, and the return spring is pulled. When the rotating plate 18 moves to the position of the squeezing roller 17, the return spring pulls the rotating plate 18, so that the rotating plate 18 is in contact with the limiting plate 19, thereby making the limiting plate 19 enter the working position in advance, and preventing the rotating plate 18 from being clamped by the fabric 20 and unable to rotate.

[0045] The rotating plate 18 is provided with a plurality of water-permeable through holes, the water squeezed out of the fabric 20 enters between the shaft sleeve 10 and the roller shaft 6 through the through holes, and moves along with the continuous rotation of the shaft sleeve 10. The water is moved to the other side of the roller shaft 6 away from the squeezing roller 17 by the shaft sleeve 10, and falls down along with the rotation of the rotating plate 18, and the falling water falls on the surface of the fabric 20 which has not been treated by steam, so as to pretreat the fabric 20, further improve the wetness of the fabric 20, and recycle the water, thereby reducing the waste of water resources.

[0046] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application.

Claims

1. An automated steam pre-shrinking machine for down textile fabrics, characterized in that, include: Box (1); Steam generating assembly (2) is installed inside the housing (1); The drying assembly (3) is located inside the housing (1); and The humidification component is installed inside the box (1). The humidification component uses the steam generated by the steam generating component (2) to humidify the down textile fabric. The humidification component includes an air inlet pipe (4) connected to the steam generating component (2) and a driven roller (5). The air inlet pipe (4) is connected to a roller shaft (6). The roller shaft (6) is provided with a cavity (7) and an air outlet groove (8) communicating with the cavity (7). A bushing (10) with an exhaust hole (9) is fitted on the roller shaft (6). The bushing (10) and the driven roller (5) sandwich the down textile fabric in the middle. The driven roller (5) is provided with a channel (11), and the driven roller (5) is provided with several air passages (12) communicating with the channel (11) along its circumference. The end of the air passage (12) near the channel (11) is hinged with a baffle (13) to prevent gas backflow. The channel (11) is connected to the steam generating assembly (2) through an air pipe. The humidification assembly also includes a squeeze roller (17), the axis height of which is higher than the axis height of the bushing (10); The bushing (10) has a rotating plate (18) and two limiting plates (19) at the exhaust hole (9). When the rotating plate (18) contacts the limiting plate (19), it can block the exhaust hole (9). A return spring is provided between the rotating plate (18) and one of the limiting plates (19), and the rotating plate (18) is provided with several water-permeable through holes.

2. The automated steam pre-shrinking machine for down textile fabrics according to claim 1, characterized in that, The driven roller (5) is made of rubber material.

3. The automated steam pre-shrinking machine for down textile fabrics according to claim 1, characterized in that, A rotating pipe (14) is provided between the air inlet pipe (4) and the roller (6), a fan blade (15) is provided inside the rotating pipe (14), and a bracket (16) is provided between the rotating pipe (14) and the bushing (10). A limiting block is provided between the air inlet pipe (4) and the roller (6).

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