A pre-shrinking machine with adjustable shrinking force

By introducing a drive motor and a servo motor into the fabric pre-shrinking machine, uniform wetting and drying of the fabric is achieved, solving the problem of inconvenient adjustment of the fabric pre-shrinking machine in the prior art and improving the pre-shrinking quality of textile fabrics.

CN224531283UActive Publication Date: 2026-07-21CHANGXING YONG XIN TEXTILE PRINTING DYEING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGXING YONG XIN TEXTILE PRINTING DYEING
Filing Date
2025-07-30
Publication Date
2026-07-21

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Abstract

The utility model discloses a kind of pre-shrunk degree adjustable textile fabric pre-shrinking machine, including box and steam box, the outer wall of the box is provided with steam box, the inner wall of the box is symmetrically provided with track, and two groups of tracks are provided with connecting frame between, the sidewall of the connecting frame is symmetrically provided with two groups of pulleys, and connecting frame is slidably connected with track by pulley, the top of the track is provided with support frame, the top of the support frame is provided with driving motor, the output of the driving motor is provided with driving shaft, the surface of the driving shaft is provided with swing arm, the end of swing arm away from driving shaft is movably provided with movable wheel, and movable wheel is slidably connected with connecting frame. The utility model not only realizes reciprocating swing to spray hot steam to wet fabric and reciprocating swing to blow to evenly dry fabric, conveniently flexibly adjust the pulling degree of fabric, and improve the quality of textile fabric pre-shrinking.
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Description

Technical Field

[0001] This utility model relates to the field of fabric pre-shrinking machine technology, specifically a textile fabric pre-shrinking machine with adjustable pre-shrinking force. Background Technology

[0002] Pre-shrinking machines are mainly used to pre-shrink fabrics made of cellulose fibers such as cotton, linen, silk, and viscose. These fabrics have high moisture absorption, and the fibers are prone to swelling, which shortens the fiber length and affects the dimensional stability of the fabrics and their blends. The pre-shrinking process for textile fabrics is spraying, compression, and drying. Pre-shrinking machines are often used to pre-shrink fabrics, but traditional pre-shrinking machines often do not have the function of adjusting the tensile strength of the fabric. In order to improve this situation, a textile fabric pre-shrinking machine with adjustable pre-shrinking force is proposed.

[0003] As disclosed in the authorization announcement number CN215628778U, a fabric pre-shrinking machine with adjustable pre-shrinking force includes a steam box, a drying box, a feeding rack, and a winding rack. The feeding rack is located on one side of the steam box, and the winding rack is located on one side of the drying box. The steam box and the drying box are closely fitted together. An exhaust pipe is installed on the top of the drying box. A second transmission shaft is provided inside the drying box. A sliding groove is opened on the inner wall of the steam box near the feeding rack, and an installation block is provided between the two sliding grooves. Although it is equipped with mounting blocks, chutes and rotating rollers, the position of the mounting block on the chutes can be adjusted by the lever on the mounting block, and the mounting block can be effectively fixed by the bolts on both sides of the mounting block, so that the rotating roller can hold the fabric in the appropriate position. This allows the staff to adjust the tension of the fabric according to the actual situation, thereby increasing the flexibility of fabric pre-shrinking. However, it has not solved the problem that existing fabric preshrinking machines are not conducive to reciprocating oscillation to spray hot steam to wet the fabric and reciprocating shaking to blow air to dry the fabric evenly, nor is it conducive to flexibly adjusting the tensile strength of the fabric, which affects the quality of textile fabric preshrinking. Utility Model Content

[0004] The purpose of this invention is to provide a textile pre-shrinking machine with adjustable pre-shrinking force, in order to solve the problems mentioned in the background art, such as the inconvenience of reciprocating swing spraying hot steam to wet the fabric and reciprocating shaking blowing air to dry the fabric evenly, the difficulty in flexibly adjusting the tensile force of the fabric, and the impact on the quality of textile pre-shrinking.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-shrinking machine for textile fabrics with adjustable pre-shrinking force, comprising a housing and a steam chamber. A steam chamber is mounted on the outer wall of the housing, and tracks are symmetrically arranged on the inner wall of the housing. A connecting frame is provided between two sets of tracks. Two sets of pulleys are symmetrically arranged on the side wall of the connecting frame, and the connecting frame is slidably connected to the tracks via the pulleys. A support frame is mounted at the top of the tracks, and a drive motor is mounted at the top of the support frame. A drive shaft is mounted at the output end of the drive motor. The surface of the drive shaft is provided with a swing arm, and the end of the swing arm away from the drive shaft is movably provided with a movable wheel, which is slidably connected to the connecting frame. The bottom end of the connecting frame is provided with multiple sets of spray frames at equal intervals, and the connecting frame is hollow and connected to the spray frames. The connecting frame is also connected to the steam box through a flexible hose. A left limiting roller is movably provided inside the box on one side of the spray frame, and a right limiting roller is movably provided inside the box on the side of the left limiting roller. Adjusting frames are symmetrically provided on the inner wall between the left limiting roller and the adjusting roller.

[0006] Preferably, each of the adjusting frames is provided with a lead screw, and the lead screw is movably connected to the adjusting frame.

[0007] Preferably, each of the adjustment frames is equipped with a servo motor at its top, and the output end of the servo motor is connected to the lead screw.

[0008] Preferably, the surface of the lead screw is fitted with threaded sleeves, and the threaded sleeves are threadedly connected to the lead screw, and an adjusting roller is movably arranged between the two sets of threaded sleeves.

[0009] Preferably, an integrated plate is symmetrically arranged inside the housing on one side of the right limiting roller, and the integrated plate is fixedly connected to the housing.

[0010] Preferably, a stepper motor is provided at the center of the surface of the integrated board, and a gear is installed at the output end of each stepper motor.

[0011] Preferably, sliders are slidably disposed on the surfaces of the integrated plates on both sides of the stepper motor, and racks are disposed on the side of the sliders near the gears, and the racks mesh with the gears.

[0012] Preferably, each slider has a drying fan on its surface, and the drying fan is fixedly connected to the slider.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this fabric pre-shrinking machine not only realizes the reciprocating oscillation spraying of hot steam to wet the fabric and the reciprocating shaking blowing to evenly dry the fabric, facilitating flexible adjustment of the fabric tension, but also improves the quality of textile fabric pre-shrinking. (1) The textile fabric to be pre-shrinked is pulled through the middle of the spray frame, the upper surface of the left limit roller, the lower surface of the adjusting roller, the upper surface of the right limit roller, and between the two sets of integrated plates to the take-up roller. The take-up roller continuously takes up the fabric. When the fabric needs to be pre-shrinked, the hot steam in the steam box is pumped into the connecting frame through a flexible hose and delivered to the spray frame. The steam is sprayed from the spray frame onto the fabric. The drive motor drives the swing arm to rotate through the drive shaft. The swing arm drives the movable wheel to rotate. The movable wheel drives the connecting frame to oscillate back and forth inside the track. The connecting frame drives the spray frame to oscillate back and forth, thereby oscillating the fabric back and forth. Steam is sprayed to wet the fabric more evenly. After the fabric is wetted, the fibers are prone to swelling and shortening. At this time, the fabric needs to be stretched to prevent excessive shrinkage. When it is necessary to adjust the stretching force of the fabric, the servo motor drives the lead screw to rotate. The lead screw drives the adjusting roller downward through the threaded sleeve. Under the limiting action of the left and right limit rollers, the adjusting roller stretches the fabric. By adjusting the position of the adjusting roller, the stretching force of the fabric can be adjusted, thereby better stretching the fabric. This realizes the reciprocating swing spraying of hot steam to wet the fabric, which facilitates flexible adjustment of the stretching force of the fabric.

[0014] (2) When the stretched fabric moves between the two integrated plates, the drying fan blows air on the fabric from the top and bottom ends to dry it. The stepper motor drives the gear to rotate in both directions. The gear drives the slider to slide back and forth through the rack. The slider drives the drying fan to move back and forth. The drying fan blows air on the fabric back and forth to dry it more evenly. The drying process shapes the fabric and completes the pre-shrinking process. This achieves uniform drying of the fabric by reciprocating shaking air blowing, which improves the quality of pre-shrinking of textile fabric. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a frontal cross-sectional view of the present invention. Figure 3 This is a three-dimensional structural diagram of the spray frame of this utility model; Figure 4 This is a three-dimensional structural diagram of the adjusting roller of this utility model; Figure 5 This is a three-dimensional structural diagram of the integrated board of this utility model.

[0016] In the diagram: 1. Box body; 2. Steam box; 3. Track; 4. Sprayer frame; 5. Left limit roller; 6. Right limit roller; 7. Adjusting frame; 8. Adjusting roller; 9. Integrated plate; 10. Pulley; 11. Support frame; 12. Drive motor; 13. Drive shaft; 14. Swing arm; 15. Movable wheel; 16. Connecting frame; 17. Servo motor; 18. Lead screw; 19. Threaded sleeve; 20. Stepper motor; 21. Gear; 22. Rack; 23. Drying fan; 24. Slider. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] Example 1 Please see Figure 1-5This utility model provides an embodiment of a textile fabric pre-shrinking machine with adjustable pre-shrinking force, comprising a housing 1 and a steam box 2. The steam box 2 is disposed on the outer wall of the housing 1, and the inner wall of the housing 1 is symmetrically arranged with rails 3. A connecting frame 16 is disposed between the two sets of rails 3. Two sets of pulleys 10 are symmetrically arranged on the side wall of the connecting frame 16, and the connecting frame 16 is slidably connected to the rails 3 through the pulleys 10. A support frame 11 is disposed at the top of the rails 3, and a drive motor 12 is disposed at the top of the support frame 11. The drive motor 12 provides power driving, and a drive shaft 1 is disposed at the output end of the drive motor 12. 3. A swing arm 14 is provided on the surface of the drive shaft 13. A movable wheel 15 is movably provided at the end of the swing arm 14 away from the drive shaft 13. The movable wheel 15 is slidably connected to the connecting frame 16. Multiple sets of spray frames 4 are provided at equal intervals at the bottom of the connecting frame 16. The connecting frame 16 is hollow and connected to the spray frames 4. The connecting frame 16 is connected to the steam box 2 through a flexible hose. A left limiting roller 5 is movably provided inside the box 1 on one side of the spray frame 4. A right limiting roller 6 is movably provided inside the box 1 on one side of the left limiting roller 5. An adjusting frame 7 is symmetrically provided on the inner wall between the left limiting roller 5 and the adjusting roller 8. Each adjustment frame 7 is equipped with a lead screw 18 inside, and the lead screw 18 is movably connected to the adjustment frame 7. Each adjustment frame 7 is equipped with a servo motor 17 at its top, which serves as a power drive, and the output end of the servo motor 17 is connected to the lead screw 18. The surface of the lead screw 18 is fitted with threaded sleeves 19, and the threaded sleeves 19 are threadedly connected to the lead screw 18. An adjusting roller 8 is movably arranged between the two sets of threaded sleeves 19. The textile fabric to be pre-shrinked is drawn onto the take-up roller between the middle of the spray frame 4, the upper surface of the left limit roller 5, the lower surface of the adjusting roller 8, the upper surface of the right limit roller 6, and the two sets of integrated plates 9. The take-up roller continuously winds up the fabric. When pre-shrinking is required, hot steam in the steam box 2 is pumped through a flexible hose into the connecting frame 16 and then into the spray frame 4. The steam is sprayed from the spray frame 4 onto the fabric. At the same time, the drive motor 12 is turned on, and the drive motor 12 drives the swing arm 14 to rotate through the drive shaft 13. The swing arm 14 drives the movable wheel 15 to rotate. With the sliding engagement of the pulley 10 and the track 3, and the sliding engagement of the movable wheel 15 and the connecting frame 16, the movable wheel 15 drives the connecting frame 16 to oscillate back and forth inside the track 3. The connecting frame 16 drives the spray frame 4 to move forward. The fabric is repeatedly swung to spray steam, making the fabric wet more evenly. After the fabric is wetted, the fibers are prone to swelling and shortening. At this time, the fabric needs to be stretched to prevent excessive shrinkage. When it is necessary to adjust the stretching force of the fabric, the servo motor 17 is turned on, which drives the lead screw 18 to rotate. With the lead screw 18 and the threaded sleeve 19 connected, the lead screw 18 drives the adjusting roller 8 to move downward through the threaded sleeve 19. Under the limiting cooperation of the left limit roller 5 and the right limit roller 6, the adjusting roller 8 stretches the fabric. By adjusting the position of the adjusting roller 8, the stretching force of the fabric can be adjusted, so as to better stretch the fabric. This realizes the reciprocating swing spraying of hot steam to wet the fabric, which facilitates the flexible adjustment of the stretching force of the fabric. An integrated plate 9 is symmetrically arranged inside the housing 1 on one side of the right limiting roller 6, and the integrated plate 9 is fixedly connected to the housing 1. A stepper motor 20 is provided at the center of the surface of the integrated board 9. The stepper motor 20 plays the role of power drive. The output end of the stepper motor 20 is equipped with a gear 21. A slider 24 is slidably provided on the surface of the integrated board 9 on both sides of the stepper motor 20. A rack 22 is provided on the side of the slider 24 near the gear 21, and the rack 22 meshes with the gear 21. Each slider 24 is equipped with a drying fan 23, and the drying fan 23 is fixedly connected to the slider 24; When the stretched fabric moves between the two integrated plates 9, the drying fan 23 is turned on, and the drying fan 23 blows air onto the fabric from both the top and bottom ends to dry it. At this time, the stepper motor 20 is turned on in both directions, and the stepper motor 20 drives the gear 21 to rotate in both directions. With the meshing of the gear 21 and the rack 22, and the sliding cooperation between the slider 24 and the integrated plate 9, the gear 21 drives the slider 24 to slide back and forth through the rack 22. The slider 24 drives the drying fan 23 to move back and forth, and the drying fan 23 blows air onto the fabric in a back-and-forth motion to dry it more evenly. The drying process shapes the fabric and completes the pre-shrinking treatment of the fabric. This achieves uniform drying of the fabric by reciprocating shaking air blowing, improving the quality of textile fabric pre-shrinking.

[0021] Work steps The textile fabric to be pre-shrinked is drawn onto the take-up roller between the middle of the spray frame 4, the upper surface of the left limit roller 5, the lower surface of the adjusting roller 8, the upper surface of the right limit roller 6, and the two sets of integrated plates 9. The take-up roller continuously winds up the fabric. When pre-shrinking is required, hot steam in the steam box 2 is pumped through a flexible hose to the connecting frame 16 and then delivered to the spray frame 4. The steam is sprayed from the spray frame 4 onto the fabric. The drive motor 12 drives the swing arm 14 to rotate via the drive shaft 13. The swing arm 14 drives the movable wheel 15 to rotate. The movable wheel 15 drives the connecting frame 16 to oscillate back and forth inside the track 3. The connecting frame 16 drives the spray frame 4 to oscillate back and forth, thus spraying steam onto the fabric to make the fabric wet more evenly. After the fabric is wetted, the fibers are prone to swelling and shortening. At this time, the fabric needs to be stretched to prevent shrinkage. When the tension of the fabric needs to be adjusted, the servo motor 17 drives the lead screw 18 to rotate. The lead screw 18 drives the adjusting roller 8 to move downward through the threaded sleeve 19. The adjusting roller 8 then pulls the fabric. By adjusting the position of the adjusting roller 8, the tension of the fabric can be adjusted to better pull the fabric. When the stretched fabric moves between the two integrated plates 9, the drying fan 23 blows air onto the fabric from both ends to dry it. At this time, the stepper motor 20 is turned on in both directions. The stepper motor 20 drives the gear 21 to rotate in both directions. The gear 21 drives the slider 24 to slide back and forth through the rack 22. The slider 24 drives the drying fan 23 to move back and forth. The drying fan 23 blows air onto the fabric in a back and forth motion to dry the fabric more evenly. The drying process shapes the fabric and completes the pre-shrinking treatment of the fabric.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pre-shrinking machine for textile fabrics with adjustable pre-shrinking force, comprising a housing and a steam chamber, characterized in that: A steam box is installed on the outer wall of the housing. Tracks are symmetrically arranged on the inner wall of the housing, and a connecting frame is provided between two sets of tracks. Two sets of pulleys are symmetrically arranged on the side wall of the connecting frame, and the connecting frame is slidably connected to the track via the pulleys. A support frame is provided at the top of the track, and a drive motor is provided at the top of the support frame. A drive shaft is provided at the output end of the drive motor. A swing arm is provided on the surface of the drive shaft. A movable wheel is movably arranged at the end of the swing arm away from the drive shaft, and the movable wheel is slidably connected to the connecting frame. Multiple sets of spray frames are provided at equal intervals at the bottom of the connecting frame. The connecting frame is hollow and connected to the spray frames. The connecting frame is connected to the steam box via a flexible hose. A left limiting roller is movably arranged inside the housing on one side of the spray frame, and a right limiting roller is movably arranged inside the housing on the side of the left limiting roller. An adjusting frame is symmetrically arranged on the inner wall between the left limiting roller and the adjusting roller.

2. The textile fabric pre-shrinking machine with adjustable pre-shrinking force according to claim 1, characterized in that: Each of the adjustment frames is equipped with a lead screw, and the lead screw is movably connected to the adjustment frame.

3. The textile fabric pre-shrinking machine with adjustable pre-shrinking force according to claim 1, characterized in that: Each of the adjustment frames is equipped with a servo motor at its top, and the output end of the servo motor is connected to the lead screw.

4. A textile fabric pre-shrinking machine with adjustable pre-shrinking force according to claim 2, characterized in that: The surface of the lead screw is fitted with threaded sleeves, and the threaded sleeves are threadedly connected to the lead screw. An adjusting roller is movably arranged between the two sets of threaded sleeves.

5. A textile fabric pre-shrinking machine with adjustable pre-shrinking force according to claim 1, characterized in that: An integrated plate is symmetrically arranged inside the box on one side of the right limiting roller, and the integrated plate is fixedly connected to the box.

6. A textile fabric pre-shrinking machine with adjustable pre-shrinking force according to claim 5, characterized in that: Each integrated board has a stepper motor located at the center of its surface, and each stepper motor has a gear installed at its output end.

7. A textile fabric pre-shrinking machine with adjustable pre-shrinking force according to claim 6, characterized in that: The integrated plate surfaces on both sides of the stepper motor are slidably equipped with sliders, and each slider is equipped with a rack on the side near the gear, and the rack meshes with the gear.

8. A textile fabric pre-shrinking machine with adjustable pre-shrinking force according to claim 7, characterized in that: Each slider is equipped with a drying fan on its surface, and the drying fan is fixedly connected to the slider.