Telescopic deformation prevention preheating type knitted fabric drying device

Abstract

The utility model relates to the technical field of fabric drying devices, in particular to a telescopic deformation prevention preheating type knitted fabric drying device which comprises a main machine body, and the interior of the main machine body is divided into a preheating cavity and a drying cavity. Two fabric pulling assemblies used for clamping the edge of the fabric and pulling the fabric in the width direction of the fabric are arranged in the drying cavity in the fabric conveying direction, and a tensioning assembly used for adjusting the tightness degree of the fabric is further arranged between the two fabric pulling assemblies. The fabric pulling assembly comprises a plurality of pressing wheels which are arranged at the top and the bottom of the drying cavity in the main machine body and make contact with the fabric, and the upper set of pressing wheels and the lower set of pressing wheels can get close to each other to make contact with the fabric and can move away from the fabric. The pressing wheels are arranged, the upper pressing wheel and the lower pressing wheel press the edge of the fabric, and the fabric is prevented from deforming by pulling the fabric.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric drying devices, in particular to a drying device for anti-stretching and deformation preheating knitted fabrics. Background Art

[0002] Knitted fabrics are divided into two categories according to the weaving method: weft knitted fabrics and warp knitted fabrics. Weft knitting is to feed one or more yarns into the working needles of the knitting machine from the weft direction, so that the yarns are bent into loops in sequence and strung together to form weft knitted fabrics. Knitted fabrics also need to be dried after production.

[0003] Chinese patent CN209066143U discloses a drying device for rough and fluffy blended weft knitted fabrics, including a preheater, a drying module and a cooler. The fabric enters from the preheater and passes through the drying module and the cooler in turn. The preheater includes a housing with a fabric inlet and outlet, a machine cavity and a transmission roller arranged in the machine cavity. A heater is arranged at the bottom of the machine cavity. The drying module includes 2-3 drying parts, and the drying parts include a fixed roller and a drying box covering half of the drying roller. The drying box is provided with an air jet, and the air jet is connected to a heating device. The patent dries the fabric by heating the air and making the air flow, and then spraying the air onto the surface of the fabric.

[0004] This prior art heats the air through a heating device, and uses a fan to make the air flow, and sprays the air onto the fabric to dry the fabric. However, during the drying process, the fabric shortens as the temperature rises. Generally, a tensioning component is added during the fabric transmission process to reduce the wrinkles of the fabric, but the width of the fabric will also shorten as the temperature rises. This change in width will also affect the overall size and quality of the fabric. Traditional drying devices often ignore this point and do not specifically handle the change in fabric width. Utility Model Content

[0005] The utility model aims to provide a drying device for preheating knitted fabrics to prevent stretching and deformation. The device is provided with pressing wheels, and two sets of upper and lower pressing wheels press the edge of the fabrics to prevent the fabrics from deformation by pulling the fabrics.

[0006] In order to solve the problems of the prior art, the utility model provides a drying device for anti-telescoping and deformation preheating knitted fabrics, comprising a main body, the inner part of the main body being a preheating chamber and a drying chamber, two groups of fabric pulling components for clamping the edges of the fabric and pulling the fabric along the width direction of the fabric are arranged inside the drying chamber along the fabric conveying direction, a tensioning component for adjusting the tightness of the fabric is also arranged between the two groups of fabric pulling components, the fabric pulling component comprises a plurality of pressure wheels in contact with the fabric arranged at the top and bottom of the drying chamber inside the main body, the upper and lower groups of pressure wheels can approach each other to contact the fabric and can move away from the fabric direction.

[0007] Preferably, the fabric pulling assembly includes a lifting plate that can move up and down and can synchronously move back and forth in a direction away from the fabric, and the pressing wheel is rotatably arranged on the lifting plate.

[0008] Preferably, the fabric pulling assembly includes a slide plate which is arranged in the heating cavity inside the main body and reciprocates along the width direction of the heating cavity, and the slide plate is provided with a first lifting mechanism for driving the lifting plate to move up and down.

[0009] Preferably, the fabric pulling assembly includes a lateral movement mechanism which is arranged in a drying chamber inside the main body and is used to drive the slide plate to move back and forth.

[0010] Preferably, the tensioning assembly includes two guide rollers of the same height, and the guide rollers are arranged in the drying chamber inside the main body through a bracket, and the guide rollers are rotatably connected to the bracket.

[0011] Preferably, the tensioning assembly includes a tensioning roller disposed between two guide rollers and capable of moving up and down, and the tensioning assembly also includes a second lifting mechanism disposed in a drying chamber inside the main body for driving the tensioning roller to move up and down.

[0012] Preferably, two sets of upper and lower preheating components are arranged in the preheating cavity inside the main body, and the preheating component includes a support plate which is arranged in the preheating cavity inside the main body and can move up and down, and a plurality of preheating rollers which can contact the surface of the fabric to preheat the fabric are rotatably arranged on the support plate, and a temperature sensor for detecting the temperature of the preheating roller is also arranged in the preheating roller, and the temperature of the plurality of preheating rollers increases gradually along the fabric conveying direction, and the preheating component also includes a third lifting component which is fixed in the preheating cavity inside the main body and is used to move the support plate up and down.

[0013] Preferably, the main body is also provided with a drying component for drying the fabric, the drying component includes an air outlet fixed in a drying cavity in the main body and arranged between two fabric pulling components, a heating device for heating the air is also arranged inside the air outlet, a plurality of air outlet slots are provided at the bottom of the air outlet, the drying component also includes a fan fixed at the top of the main body, the air outlet end of the fan is connected to a second pipe, one end of the second pipe is interconnected with the air outlet, the air inlet end of the fan is connected to a first pipe, one end of the first pipe extends to the drying cavity inside the main body, and a temperature sensor for detecting the temperature is also arranged in the drying cavity inside the main body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The present application is provided with two sets of upper and lower pressing wheels. These two sets of pressing wheels act on the upper and lower edges of the fabric respectively. When the fabric shortens, the pressing wheels can provide a pulling force in the opposite direction of shortening, thereby effectively preventing the fabric from deforming. In addition, the pressing wheels are rotatably arranged on the lifting plate. As the fabric moves during the transmission process, the pressing wheels can rotate accordingly, ensuring that the normal transmission of the fabric is not hindered;

[0016] 2. Before the drying process, the present application also adds a preheating treatment step. Specifically, by setting up a number of preheating rollers and making these preheating rollers directly contact the fabric, the fabric is preheated. It is worth noting that the temperature of these preheating rollers is not set uniformly, but increases in a gradient along the conveying direction of the fabric. Such a temperature setting can ensure that the temperature of the fabric rises gradually, effectively avoiding the fabric from shrinking sharply due to a sudden increase in temperature, thereby ensuring that the quality of the fabric is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external three-dimensional structure of a drying device for anti-stretching and deformation preheating knitted fabrics of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal three-dimensional structure of a drying device for anti-stretching and deformation preheating knitted fabrics of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of a preheating component of a drying device for anti-stretching and deformation preheating knitted fabrics of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of a fabric pulling component of a drying device for anti-stretching and deformation preheating knitted fabrics of the utility model;

[0021] Figure 5It is a three-dimensional structural schematic diagram of a tensioning component of a drying device for anti-stretching and deformation preheating knitted fabrics of the utility model;

[0022] Figure 6 The utility model is a three-dimensional structural schematic diagram of a drying component of a drying device for anti-telescoping and deformation preheating knitted fabrics.

[0023] The numbers in the figure are: 1, main body; 11, drying component; 111, fan; 112, first pipeline; 113, second pipeline; 114, air outlet; 1141, air outlet slot; 12, fabric pulling component; 121, lateral moving mechanism; 122, slide plate; 123, first lifting mechanism; 124, lifting plate; 125, pressure wheel; 13, tensioning component; 131, guide roller; 132, tensioning roller; 133, second lifting mechanism; 14, preheating component; 141, support plate; 142, preheating roller; 143, third lifting component. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1-Figure 6 As shown, the utility model provides a drying device for anti-telescoping and deformation preheating knitted fabrics, including a main body 1. The interior of the main body 1 is divided into a preheating chamber and a drying chamber. Two groups of fabric pulling components 12 for clamping the edges of the fabric and pulling the fabric along the width direction of the fabric are arranged inside the drying chamber along the fabric conveying direction. A tensioning component 13 for adjusting the tightness of the fabric is also arranged between the two groups of fabric pulling components 12. The fabric pulling component 12 includes a plurality of pressing wheels 125 in contact with the fabric arranged at the top and bottom of the drying chamber inside the main body 1. The upper and lower groups of pressing wheels 125 can approach each other to contact the fabric and can move away from the fabric.

[0026] When the knitted fabric enters the drying device, it is first preheated by the preheating chamber. Then, the fabric enters the drying chamber, is clamped by two sets of fabric pulling components 12 and pulled along the width direction to keep the fabric flat. At the same time, the tensioning component 13 adjusts the tightness of the fabric according to the actual situation of the fabric. Through such a design, the fabric can effectively reduce the expansion and contraction deformation during the drying process, ensuring the quality of the fabric after drying.

[0027] When the fabric is shortened, the pressing wheel 125 can provide a pulling force in the opposite direction of the shortening, thereby effectively preventing the fabric from being deformed. In addition, the pressing wheel 125 is rotatably arranged on the lifting plate 124, and as the fabric moves during the transmission process, the pressing wheel 125 can rotate accordingly, ensuring that the normal transmission of the fabric is not hindered.

[0028] The fabric pulling assembly 12 includes a lifting plate 124 that can move up and down and can synchronously move back and forth in a direction away from the fabric, and a pressure wheel 125 is rotatably arranged on the lifting plate 124. The fabric pulling assembly 12 includes a slide plate 122 that is arranged in the heating chamber inside the main body 1 and reciprocates along the width direction of the heating chamber. The slide plate 122 is provided with a first lifting mechanism 123 for driving the lifting plate 124 to move up and down. The first lifting mechanism 123 can be a lifting mechanism of the type of a screw lift, a cylinder, an electric push rod, etc., as long as it is a structure that can be lifted and lowered.

[0029] The fabric pulling assembly 12 includes a lateral moving mechanism 121 arranged in the drying chamber inside the main body 1 and used to drive the slide plate 122 to move back and forth. The lateral moving mechanism 121 can be a motor-driven screw mechanism, a slide rail slider mechanism or a cylinder, etc., as long as it is a mechanism that can make the slide plate 122 move linearly.

[0030] When the fabric enters the drying device, the fabric pulling assembly 12 starts to work. The slide plate 122 moves back and forth along the width direction of the drying chamber, driving the lifting plate 124 and the pressing wheel 125 to move to the edge of the fabric. Then, the first lifting mechanism 123 drives the lifting plate 124 to move up and down, so that the pressing wheel 125 contacts the fabric and applies appropriate pressure. During the fabric conveying process, the pressing wheel 125 clamps and pulls the edge of the fabric through its rotation to maintain the flatness of the fabric. At the same time, the lifting plate 124 and the pressing wheel 125 can also be fine-tuned according to the actual situation of the fabric to adapt to fabrics of different thicknesses and materials.

[0031] The tensioning assembly 13 includes two guide rollers 131 of the same height, and the guide rollers 131 are arranged in the drying chamber inside the main body 1 through a bracket, and the guide rollers 131 are rotatably connected to the bracket. The tensioning assembly 13 includes a tensioning roller 132 arranged between the two guide rollers 131 and capable of moving up and down, and the tensioning assembly 133 is arranged in the drying chamber inside the main body 1 for driving the tensioning roller 132 to move up and down.

[0032] Two groups of upper and lower preheating components 14 are arranged in the preheating cavity inside the main body 1. The preheating component 14 includes a support plate 141 which is arranged in the preheating cavity inside the main body 1 and can move up and down. A plurality of preheating rollers 142 which can contact the surface of the fabric to preheat the fabric are rotatably arranged on the support plate 141. The preheating rollers 142 are also provided with temperature sensors for detecting the temperature of the preheating rollers 142. The temperature of the plurality of preheating rollers 142 increases gradually along the fabric conveying direction. The preheating component 14 also includes a third lifting component 143 which is fixed in the preheating cavity inside the main body 1 and is used to move the support plate 141 up and down.

[0033] The fabric is preheated by setting a plurality of preheating rollers 142 and making these preheating rollers 142 directly contact with the fabric. It is worth noting that the temperature of these preheating rollers 142 is not uniformly set, but increases in a gradient along the conveying direction of the fabric. Such a temperature setting can ensure that the fabric temperature rises gradually, effectively avoiding the fabric from shrinking sharply due to a sudden increase in temperature, thereby ensuring that the quality of the fabric is not affected.

[0034] The main body 1 is also provided with a drying component 11 for drying fabrics. The drying component 11 includes an air outlet 114 fixed in a drying chamber in the main body 1 and arranged between two fabric pulling components 12. A heating device for heating air is also arranged inside the air outlet 114. A plurality of air outlet slots 1141 are provided at the bottom of the air outlet 114. The drying component 11 also includes a fan 111 fixed on the top of the main body 1. The air outlet end of the fan 111 is connected to a second pipe 113. One end of the second pipe 113 is interconnected with the air outlet 114. The air inlet end of the fan 111 is connected to a first pipe 112. One end of the first pipe 112 extends into the drying chamber inside the main body 1. A temperature sensor for detecting temperature is also arranged in the drying chamber inside the main body 1.

[0035] When the drying device starts working, the fan 111 starts and sucks the air in the drying chamber through the first pipe 112. After being acted upon by the fan 111 and heated by the heating device, the air is transported to the air outlet 114 through the second pipe 113. Then, the heated air is evenly blown onto the fabric from the air outlet slot 1141 of the air outlet 114 to dry the fabric. At the same time, the temperature sensor monitors the temperature in the drying chamber in real time.

[0036] Working principle: When using this device, the fabric is first passed through the channel between the upper and lower preheating rollers 142. Then, the fabric continues to pass through the upper and lower sets of pressing wheels 125, and at the same time passes through the channel between the guide roller 131 and the tensioning roller 132. At this time, the preheating roller 142 starts to work, and the support plate 141 is moved by the third lifting assembly 143. The movement of the support plate 141 makes the preheating roller 142 closely contact the fabric. The preheating roller 142 preheats the fabric, and the temperature of multiple preheating rollers 142 gradually increases along the conveying direction of the fabric, forming a gradient increase, thereby ensuring that the temperature of the fabric gradually rises, avoiding sudden shrinkage of the fabric due to sudden temperature changes, thereby affecting the quality of the fabric. Next, the slide plate 122 is driven to move by the lateral moving mechanism 121, and the height of the lifting plate 124 is adjusted by the first lifting mechanism 123, so that the upper and lower sets of pressing wheels 125 are tightly pressed to the edge of the fabric. When the fabric shortens during the conveying process, the pressing wheel 125 can provide a pulling force opposite to the shortening direction, effectively preventing the fabric from deforming. At the same time, the pressing wheel 125 is rotatably arranged on the lifting plate 124. As the fabric is conveyed, the pressing wheel 125 can rotate smoothly without causing any obstruction to the conveyance of the fabric. The heating device in the air outlet 114 is started to heat the air. Subsequently, the hot air is blown onto the fabric through the action of the fan 111 to dry the fabric. In addition, if the fabric is shortened during the drying process, the position of the tensioning roller 132 can be adjusted through the action of the second lifting mechanism 133, so as to tension the fabric and ensure that the fabric remains flat and stable during the drying process.

[0037] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A drying device for anti-stretching and deformation preheating knitted fabrics, characterized in that: The invention comprises a main body (1), wherein the interior of the main body (1) is divided into a preheating chamber and a drying chamber, wherein two groups of fabric pulling components (12) are arranged inside the drying chamber along the fabric conveying direction for clamping the edges of the fabric and pulling the fabric along the fabric width direction, and a tensioning component (13) for adjusting the tightness of the fabric is also arranged between the two groups of fabric pulling components (12), and the fabric pulling components (12) comprise a plurality of pressing wheels (125) in contact with the fabric and arranged at the top and bottom of the drying chamber inside the main body (1), wherein the upper and lower groups of pressing wheels (125) can approach each other to contact the fabric and can move away from the fabric direction.

2. The drying device for anti-stretching and deformation preheating knitted fabric according to claim 1, characterized in that: The fabric pulling assembly (12) comprises a lifting plate (124) which can move up and down and can synchronously move back and forth in a direction away from the fabric, and the pressing wheel (125) is rotatably arranged on the lifting plate (124).

3. The drying device for anti-stretching and deformation preheating knitted fabric according to claim 2, characterized in that: The fabric pulling assembly (12) comprises a slide plate (122) which is arranged in a heating chamber inside the main body (1) and reciprocates along the width direction of the heating chamber, and a first lifting mechanism (123) for driving a lifting plate (124) to move up and down is arranged on the slide plate (122).

4. The drying device for anti-stretching and deformation preheating knitted fabric according to claim 3, characterized in that: The fabric pulling assembly (12) comprises a transverse moving mechanism (121) which is arranged in a drying chamber inside the main body (1) and is used to drive a sliding plate (122) to move back and forth.

5. The drying device for anti-stretching and deformation preheating knitted fabric according to claim 1, characterized in that: The tensioning assembly (13) comprises two guide rollers (131) of the same height, and the guide rollers (131) are arranged in a drying chamber inside the main body (1) via a bracket, and the guide rollers (131) are rotatably connected to the bracket.

6. The drying device for anti-stretching and deformation preheating knitted fabric according to claim 5, characterized in that: The tensioning assembly (13) comprises a tensioning roller (132) which is arranged between two guide rollers (131) and is capable of moving up and down. The tensioning assembly (13) further comprises a second lifting mechanism (133) which is arranged in a drying chamber inside the main body (1) and is used for driving the tensioning roller (132) to move up and down.

7. The drying device for anti-stretching and deformation preheating knitted fabric according to claim 1, characterized in that: Two upper and lower groups of preheating components (14) are arranged in the preheating cavity inside the main body (1), and the preheating component (14) comprises a support plate (141) arranged in the preheating cavity inside the main body (1) and capable of moving up and down, a plurality of preheating rollers (142) capable of contacting the surface of a fabric to preheat the fabric are rotatably arranged on the support plate (141), and are capable of contacting the surface of the fabric to preheat the fabric, and a temperature sensor for detecting the temperature of the preheating roller (142) is also arranged in the preheating roller (142), and the temperature of the plurality of preheating rollers (142) increases gradually along the fabric conveying direction, and the preheating component (144) further comprises a third lifting component (143) fixed in the preheating cavity inside the main body (1) and used to move the support plate (141) up and down.

8. The drying device for anti-stretching and deformation preheating knitted fabric according to claim 1, characterized in that: The main body (1) is also provided with a drying component (11) for drying fabrics. The drying component (11) comprises an air outlet (114) fixed in a drying chamber in the main body (1) and arranged between two fabric pulling components (12). A heating device for heating air is also arranged inside the air outlet (114). A plurality of air outlet slots (1141) are provided at the bottom of the air outlet (114). The drying component (11) also comprises a fan (111) fixed on the top of the main body (1). The air outlet end of the fan (111) is connected to a second pipe (113). One end of the second pipe (113) is connected to the air outlet (114). The air inlet end of the fan (111) is connected to a first pipe (112). One end of the first pipe (112) extends into the drying chamber inside the main body (1). A temperature sensor for detecting temperature is also arranged in the drying chamber inside the main body (1).

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