A knitted grey cloth shaping process and shaping device

Abstract

The present invention discloses a knitted grey cloth shaping process and a shaping device thereof, belonging to the technical field of pre-shrinking shaping installation, comprising a frame and an exhaust part, a plurality of groups of transmission rollers are arranged on the frame, an ironing roller and two tension rollers are arranged on the frame, the ironing roller is connected with a heating element for heating the surface of the ironing roller, a traction assembly is arranged on the frame, a displacement assembly is arranged on the frame, and the displacement assembly is driven by a tension sensor, and a rotating assembly for driving the ironing roller close to the surface of the material to reciprocate around the axis along the transmission direction of the material is arranged on the frame. A knitted grey cloth shaping process and a shaping device thereof of the present invention adjusts the tension of the material in real time by arranging a traction assembly driven by a tension sensor, so that the shrinkage effect of the surface of the material to be dried can be controlled in the active tensioning of the traction assembly, and compared with the prior art, it can effectively ensure the stability of the overall rate of the pre-shrinking shaping machine, so that the material can pass through the steaming zone at a uniform rate.

Description

Technical Field

[0001] The invention relates to the technical field of preshrinkage setting machines, in particular to a knitted grey cloth setting process and a setting device thereof. Background Art

[0002] Before knitted grey fabric is sewn into backpack clothing, it usually needs to go through a series of pre-treatment processes, among which pre-shrinking and shaping is a crucial step. It can effectively stabilize the shrinkage rate of the knitted grey fabric, ensure that the finished product made of the grey fabric is stable in size and has a good feel, and is not easy to shrink again during the subsequent ironing process. The most commonly used pre-shrinking and shaping machine in garment factories is the steam pre-shrinking machine, especially the medium and large steam pre-shrinking machines. They are usually equipped with two steaming zones with different steam temperatures. There are several drying zones behind each steaming zone to achieve rapid drying of the grey fabric. At the same time, by setting the steam temperature of the two steaming zones in a progressive temperature form, the pre-shrinking and shaping effect of the grey fabric can be further improved.

[0003] When the grey cloth passes through the drying area for the first time, it will shrink to a certain extent due to rapid cooling and drying. In order to prevent the grey cloth from being subjected to excessive traction when it subsequently enters the steaming area, the prior art generally installs tension sensors on the transmission rollers close to the steaming areas on both sides to adjust the transmission speed of the feed rollers in real time, thereby achieving tension-free transmission of the grey cloth.

[0004] However, under this equipment architecture, the transmission speed in each drying zone will change frequently, causing the grey cloth to return to the original transmission speed of the feed roller after being transmitted for a certain distance. This speed change makes the actual rate at which the grey cloth passes through the two steaming zones successively inconsistent with the preset rate of the equipment, thereby affecting the overall pre-shrinkage effect of the grey cloth.

[0005] In view of the above problems, a steam pre-shrinking machine technical solution is proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the problems in the prior art and to propose a knitted grey cloth shaping process and a shaping device thereof.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a knitted grey cloth shaping device, comprising a frame and an exhaust member arranged in the frame for exhausting air to the outside of the frame, the frame is provided with a plurality of groups of transmission rollers for transmitting materials, the frame is provided with an ironing roller that rolls in contact with the surface of the material and two tension rollers that slide in contact with the surface of the material, the ironing roller is connected to a heating element that heats the surface of the ironing roller, the frame is provided with traction components for tensioning the materials on both sides of the ironing roller, the frame is provided with a displacement component for pushing the ironing roller to abut against the end surface of the material, and the tension roller is provided with a plurality of rollers that roll in contact with the surface of the material. A tension sensor is provided, and the tension sensor drives the displacement component by sensing the change of the abutment force acting on the surface of the tension roller when the traction component tensions the material. The frame is provided with a rotating component for driving the ironing roller close to the surface of the material to reciprocate around the axis in the transmission direction of the material. The traction component includes two groups of traction rollers respectively arranged on both sides of the ironing roller, and the rotating component includes two pull rods rotatably connected to the frame, one end of the pull rod is rotatably connected to a group of traction rollers, and two first motors for respectively driving the other ends of the two pull rods to rotate around the same axis are fixedly provided on the frame.

[0008] The present invention is further configured as follows: an accommodating cavity for accommodating the movement of the ironing roller is opened in the frame, the cross-section of the accommodating cavity is in a constricted shape toward the air inlet of the exhaust piece, when the traction assembly tensions the material, the material approaches the direction of the exhaust piece, and the two positions where the traction assembly tensions the material are symmetrically distributed along the sliding path of the ironing roller.

[0009] The present invention is further configured as follows: a slide groove with an oblong cross-section is formed on the frame, a slider is provided on the frame and slides back and forth in the slide groove, the traction component is connected to the slider, and the displacement component includes a second cylinder fixedly connected to the frame, and the output end of the second cylinder is connected to the slider.

[0010] The present invention is further configured as follows: a gear is fixedly connected to each side of the slider, two racks are slidably connected to the frame, a tooth surface portion that can mesh with the gear is formed on the rack, two first cylinders are fixedly arranged on the frame, the output end of the first cylinder is used to drive the rack to slide back and forth, and when the gear meshes with the tooth surface portion, the first cylinder drives the gear to rotate around its axis.

[0011] The present invention is further configured as follows: the rack is concavely formed with a yielding portion at a middle position of the tooth surface portion, and when the first cylinder guides the yielding portion of the rack to accommodate the gear, the output end of the second cylinder points to the yielding portion.

[0012] A knitted grey cloth shaping process, using the above-mentioned shaping device for drying, comprises the following steps:

[0013] S1: First steaming: the material is steamed in the first chamber filled with steam at a temperature range of 100°C to 200°C;

[0014] S2: First drying, the second chamber tensions the material passing through it, and uses an ironing roller to roll against the surface of the material, the surface temperature of the ironing roller is maintained at 100°C to 170°C, and the second chamber is dehumidified at the same time;

[0015] S3: Second steaming: the material is steamed in a third chamber filled with steam at a temperature ranging from 100°C to 250°C;

[0016] S4: Second drying, the fourth chamber tensions the material passing through it, and uses an ironing roller to roll against the surface of the material, the surface temperature of the ironing roller is maintained at 100°C to 170°C, and the fourth chamber is dehumidified at the same time;

[0017] Among them, the first chamber, the second chamber, the third chamber and the fourth chamber are all provided with transmission rollers for transmitting materials.

[0018] In summary, the present invention has the following beneficial effects: by setting a traction component driven by a tension sensor to perform real-time tension adjustment on the material, the shrinkage effect on the surface of the material being dried can be controlled by the active tensioning of the traction component. Compared with the prior art, the overall rate stability of the preshrinking and setting machine can be effectively guaranteed, so that the material can pass through the steaming zone at a uniform rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The cross section of the frame of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The cross section of the frame of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 The cross-sectional view of the transmission roller, tension roller, traction roller, ironing roller and slider of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 4 Figure 2 The enlarged view of point A in the middle;

[0023] Figure 5 The cross-sectional view of the transmission roller, tension roller, traction roller, ironing roller and slider of the present invention is shown in FIG. Figure 2 .

[0024] In the figure: 1, frame; 101, accommodating chamber; 102, slide; 2, transmission roller; 3, tension roller; 4, traction roller; 5, pull rod; 6, first motor; 7, ironing roller; 8, slider; 9, rack; 901, tooth surface; 902, yielding part; 11, first cylinder; 12, gear; 13, second cylinder; 14, exhaust part; 15, heating element. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments.

[0026] A knitted fabric shaping device, such as Figures 1 to 3 As shown, the machine comprises a frame 1 and an exhaust member 14 arranged in the frame 1 for exhausting air to the outside of the frame 1, the air inlet of the exhaust member 14 is connected to the inside of the frame 1, and the air outlet of the exhaust member 14 is connected to the outside of the frame 1 from the side of the frame 1, two groups of transmission rollers 2 for transmitting materials are arranged on the frame 1, each group has two, an ironing roller 7 rolling in contact with the surface of the material and two tension rollers 3 sliding in contact with the surface of the material are arranged on the frame 1, the ironing roller 7 is connected to a heating element 15 for heating the surface of the ironing roller 7, the frame 1 is provided with traction components for tensioning the materials on both sides of the ironing roller 7, and the frame 1 is provided with a A displacement component for pushing the ironing roller 7 to abut against the end surface of the material, a tension sensor is arranged on the tension roller 3, and the tension sensor drives the displacement component by sensing the change of the abutting force acting on the surface of the tension roller 3 when the traction component tensions the material, and a rotating component for driving the ironing roller 7 close to the surface of the material to reciprocate around the axis along the transmission direction of the material is arranged on the frame 1. In this specific embodiment, the heating element 15 heats the surface of the ironing roller 7 by steam heating, and the heating element 15 is supplemented with water through a pipeline. The traction component includes two groups of traction rollers 4 respectively arranged on both sides of the ironing roller 7, and each group has two;

[0027] Operation mode: Taking knitted grey cloth as an example, after entering the device, the material will successively contact the first group of transmission rollers 2, the first tension roller 3, the first group of traction rollers 4, the ironing roller 7, the second group of traction rollers 4, the second tension roller 3 and the second group of transmission rollers 2. When the material passes through, the traction assembly tensions the material, and at the same time, the material applies abutment force to the tension roller 3, driving the ironing roller 7 to maintain abutment against the material. In this process, the two traction rollers 4 adjust the tension of the material in real time when the ironing roller 7 is drying the material, so that the material can be dried under uniform tension;

[0028] In this process, the ironing roller 7 rotates back and forth around the axis along the conveying direction of the material when it is in close contact with the surface of the material, so that the surface of the material is continuously smoothed by the ironing roller 7 during the drying process of the ironing roller 7, so that the instantaneous tension of the material drying position from the ironing roller 7 is lower. At the same time, the surface of the material is smoothed by the ironing roller 7, and the rolling of the ironing roller 7 and its reciprocating passage through the surface of the material that has been contacted by it further improves its drying rate for the material.

[0029] Practical effect: By setting a traction component driven by a tension sensor to adjust the tension of the material in real time, the shrinkage effect on the surface of the material being dried can be controlled by the active tensioning of the traction component. Compared with the existing technology, it can effectively ensure the stability of the overall rate of the preshrinking and setting machine, so that the material can pass through the steaming zone at a uniform rate.

[0030] like Figures 1 to 3 As shown, specifically, a slide groove 102 with an oblong cross section is formed on the frame 1, a slider 8 is provided on the frame 1 to slide back and forth in the slide groove 102, the traction component is connected to the slider 8, the displacement component includes a second cylinder 13 fixedly connected to the frame 1, the output end of the second cylinder 13 is connected to the slider 8, and a gear 12 is fixedly connected to both sides of the slider 8, two racks 9 are slidably connected to the frame 1, and the rack 9 is formed with a tooth surface 901 that can mesh with the gear 12, and two first cylinders 11 are fixedly provided on the frame 1, and the output end of the first cylinder 11 is used to drive the rack 9 to slide back and forth, and the gear 12 and the tooth surface 9 01 meshes, the first cylinder 11 drives the gear 12 to rotate around its axis, and the rack 9 is concavely formed with a yield portion 902 at the middle position of the tooth surface portion 901. When the first cylinder 11 guides the yield portion 902 of the rack 9 to accommodate the gear 12, the output end of the second cylinder 13 points to the yield portion 902. The rotating assembly includes two pull rods 5 rotatably connected to the frame 1, one end of the pull rod 5 is rotatably connected to a group of traction rollers 4, and two first motors 6 are fixedly arranged on the frame 1 for driving the other ends of the two pull rods 5 to rotate around the same axis. More specifically, the minimum angle at which the two groups of traction rollers 4 can rotate toward the exhaust member 14 is 140°.

[0031] like Figures 3 to 5 As shown, specifically, in order to further improve the drying effect, a accommodating chamber 101 for accommodating the movement of the ironing roller 7 is opened in the frame 1, and the cross-section of the accommodating chamber 101 is in a constricted shape toward the air inlet of the exhaust piece 14. When the traction assembly tensions the material, the material approaches the exhaust piece 14. In order to make the rotation of the ironing roller 7 smoother, the two positions where the traction assembly tensions the material are symmetrically distributed along the sliding path of the ironing roller 7.

[0032] A knitted grey cloth shaping process, using the above-mentioned shaping device for drying, comprises the following steps:

[0033] S1: First steaming: the material is steamed in the first chamber filled with steam at a temperature range of 100°C to 200°C;

[0034] S2: First drying, the second chamber tensions the material passing through it, and uses the ironing roller 7 to roll against the surface of the material, the surface temperature of the ironing roller 7 is maintained at 100°C to 170°C, and the second chamber is dehumidified at the same time;

[0035] S3: Second steaming: the material is steamed in a third chamber filled with steam at a temperature ranging from 100°C to 250°C;

[0036] S4: Second drying, the fourth chamber tensions the material passing through it, and uses the ironing roller 7 to roll against the surface of the material, the surface temperature of the ironing roller 7 is maintained at 100° C. to 170° C., and the fourth chamber is dehumidified at the same time;

[0037] The first chamber, the second chamber, the third chamber and the fourth chamber are all provided with transmission rollers 2 for transmitting materials.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A knitted fabric shaping device, comprising a frame and an exhaust member arranged in the frame for exhausting air to the outside of the frame, wherein the frame is provided with a plurality of transmission rollers for transmitting materials, and wherein: The frame is provided with an ironing roller that rolls against the surface of the material and two tension rollers that slide against the surface of the material, the ironing roller is connected to a heating element that heats the surface of the ironing roller, the frame is provided with traction components that are respectively used to tension the materials on both sides of the ironing roller, the frame is provided with a displacement component that is used to push the ironing roller to abut against the end surface of the material, the tension roller is provided with a tension sensor, and the tension sensor drives the displacement component by sensing the change of the abutment force acting on the surface of the tension roller when the traction component tensions the material, the frame is provided with a rotating component that is used to drive the ironing roller that is close to the surface of the material to reciprocate around the axis in the transmission direction of the material, the traction component includes two groups of traction rollers that are respectively arranged on both sides of the ironing roller, the rotating component includes two pull rods that are rotatably connected to the frame, one end of the pull rod is rotatably connected to a group of traction rollers, and two first motors that are used to drive the other ends of the two pull rods to rotate around the same axis are fixedly provided on the frame.

2. A knitted fabric shaping device according to claim 1, characterized in that: A accommodating cavity for accommodating the movement of the ironing roller is provided in the frame, and the cross-section of the accommodating cavity is in a tapered shape facing the air inlet of the exhaust piece. When the traction assembly tensions the material, the material approaches the exhaust piece, and the two positions where the traction assembly tensions the material are symmetrically distributed along the sliding path of the ironing roller.

3. A knitted fabric shaping device according to claim 2, characterized in that: The frame is formed with a slide groove with an oblong cross-section, and the frame is provided with a slider that slides back and forth in the slide groove. The traction component is connected to the slider. The displacement component includes a second cylinder fixedly connected to the frame, and the output end of the second cylinder is connected to the slider.

4. A knitted fabric shaping device according to claim 3, characterized in that: A gear is fixedly connected to both sides of the slider, and two racks are slidably connected to the frame. The racks are formed with tooth surfaces that can mesh with the gears. Two first cylinders are fixedly arranged on the frame. The output ends of the first cylinders are used to drive the racks to slide back and forth, and when the gears mesh with the tooth surfaces, the first cylinders drive the gears to rotate around their axes.

5. A knitted fabric shaping device according to claim 4, characterized in that: The rack has a recessed portion formed in the middle of the tooth surface. When the first cylinder guides the recess of the rack to accommodate the gear, the output end of the second cylinder points to the recess.

6. A knitted fabric shaping process, characterized in that: The drying process is carried out using the shaping device according to any one of claims 1 to 5, comprising the following steps: S1: First steaming: the material is steamed in the first chamber filled with steam at a temperature range of 100°C to 200°C; S2: First drying, the second chamber tensions the material passing through it, and uses an ironing roller to roll against the surface of the material, the surface temperature of the ironing roller is maintained at 100°C to 170°C, and the second chamber is dehumidified at the same time; S3: Second steaming: the material is steamed in a third chamber filled with steam at a temperature ranging from 100°C to 250°C; S4: Second drying, the fourth chamber tensions the material passing through it, and uses an ironing roller to roll against the surface of the material, the surface temperature of the ironing roller is maintained at 100°C to 170°C, and the fourth chamber is dehumidified at the same time; Among them, the first chamber, the second chamber, the third chamber and the fourth chamber are all provided with transmission rollers for transmitting materials.

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