Production process and equipment for pure cotton fabric

Abstract

The present invention relates to the field of textile production, and specifically to a production process for pure cotton fabrics and its production equipment. The production equipment includes a frame and guide rollers. The fabric moves in sequence through a flattening device, a dehydrating device, and a drying device. The dehydrating device includes at least one set of supporting seats and pressing seats. The supporting seats are fixedly installed at the bottom of the frame, and the pressing seats are installed directly above the supporting seats. The fabric passes between the supporting seats and the pressing seats. Rotating blocks are respectively provided at both ends of the supporting seats and the pressing seats. The rotating blocks are in the shape of a Reuleaux triangle. The driving unit drives the rotating blocks on the supporting seats and the pressing seats to rotate synchronously in opposite directions. Extrusion rollers are inserted at the tops of the rotating blocks, and a water collection box for receiving water is provided at the bottom of the frame. This technical solution drives the squeezing rollers to move along a square rotation trajectory through the rotating blocks in the shape of a Reuleaux triangle. The squeezing rollers squeeze the fabric between the supporting seats and the pressing seats and move parallel to a distance, thereby increasing the squeezing area of ​​the fabric.

Description

Technical Field

[0001] The present invention relates to the field of textile production, and in particular to a production process and production equipment for pure cotton fabrics. Background Art

[0002] Pure cotton yarn-dyed fabrics are made from cotton through a textile process. They possess properties such as moisture absorption, moisture retention, heat and alkali resistance, and sanitation. Generally speaking, pure cotton fabrics have excellent moisture absorption and heat resistance, and are comfortable to wear. Pure cotton fabrics are suitable for workwear in industries that require high moisture absorption. During production, yarn-dyed fabrics undergo a series of processes: spinning, dyeing, dehydration, and drying. After these processes, the finished fabrics are rolled up.

[0003] Chinese patent application CN114032652A discloses an apparatus and process for producing pure cotton color-woven fabrics, which belongs to the field of textiles. The apparatus includes a frame, to which a winding roller and a drive motor are rotatably connected. The drive motor is used to control the rotation of the winding roller. A dewatering mechanism is provided on the frame and located on the side opposite to the direction of travel of the fabric from the winding roller. The dewatering mechanism includes a pressure roller and a pressure roller. The pressure roller is rotatably connected to the frame, and the pressure roller rotates relative to the frame. The circumferential surface of the pressure roller and the circumferential surface of the pressure roller respectively abut against opposite sides of the fabric.

[0004] The dewatering mechanism in this equipment relies on pressure rollers and pressure rollers to squeeze the fabric to remove moisture, but the contact area between the pressure rollers and the fabric in each dewatering mechanism is small, only a line, and the squeezing effect is low. Therefore, multiple dewatering mechanisms and multiple processing steps are required, which increases the cost of the equipment. Summary of the Invention

[0005] In view of the above problems, it is necessary to provide a production process and production equipment of pure cotton fabrics to address the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] A production process for pure cotton fabrics comprises the following steps:

[0008] Step 1: Clean the fabric;

[0009] Step 2: Flatten the cleaned fabric and squeeze and dehydrate it;

[0010] Step 3: Dry the dehydrated fabric and then roll it up.

[0011] A production equipment for pure cotton fabrics is applied to a production process of pure cotton fabrics, comprising a frame, a plurality of horizontal guide rollers are arranged on the frame, the fabric passes through the guide rollers and moves from the feed end to the discharge end of the frame, and the fabric moves in sequence through a flattening device, a dehydrating device and a drying device, the dehydrating device comprising at least one group of supporting seats and a pressing seat, the supporting seat is fixedly mounted on the bottom of the frame, the pressing seat is mounted directly above the supporting seat, and the fabric passes between the supporting seat and the pressing seat; rotating blocks are respectively provided at both ends of the supporting seat and the pressing seat, the rotating blocks are in the form of a Reuleaux triangle, the rotating axis of the rotating block is parallel to the axis of the guide roller, and the driving unit drives the rotating blocks on the supporting seat and the pressing seat to rotate synchronously in opposite directions; squeezing rollers are inserted at the top ends of the rotating blocks, and the squeezing rollers on the supporting seat and the pressing seat horizontally squeeze the fabric between the supporting seat and the pressing seat; a water collecting box for collecting water is provided at the bottom of the frame.

[0012] Preferably, the cross-sectional shape of the supporting seat and the pressing seat is square, and when the rotating block rotates, its top corner moves along the outer wall circumference of the supporting seat and the pressing seat; the radius of the extrusion roller is the same as the distance from the axis of the extrusion roller to the top corner closest to the rotating block.

[0013] Preferably, a limit block is coaxially arranged on the outward side of the rotating block, the limit block has the same shape as the rotating block, the distance between the top corners of the limit block is smaller than the distance between the top corners of the rotating block, and the limit block is inserted into the limit inner groove arranged in the supporting seat and the pressing seat; the rotating block rotates and the limit block fits the inner wall of the limit inner groove to limit movement.

[0014] Preferably, a horizontally extending contact surface is provided on the opposite side of the supporting seat and the pressing seat, and a distance measuring sensor is inserted on the contact surface of the pressing seat. The working end of the distance measuring sensor is arranged toward the contact surface of the supporting seat, and the distance measuring sensor is used to detect the distance between the squeezing rollers on the supporting seat and the pressing seat.

[0015] Preferably, the pressing seats located on both sides of the frame are fixedly connected by a connecting plate, and the connecting plate is fixedly connected to the working end of the linear drive; the linear drive is fixedly installed on the top of the frame, and the working end of the linear drive is set to move in the vertical direction.

[0016] Preferably, the driving unit includes a rotary driver for driving the rotating block to rotate, the rotary driver is fixedly mounted on one side of the frame, the working end of the rotary driver is coaxially connected to one end of the first universal coupling, and the other end of the first universal coupling is inserted into an axial sleeve arranged on the outward side of the limit block.

[0017] Preferably, the straight-line distances between the center of the axial sleeve and each vertex of the limiting block are the same.

[0018] Preferably, the first universal coupling connected to the working end of the rotary driver is inserted into the axial sleeve on one side of the rotating block on the supporting seat, and a mounting plate extending to the upper side of the rotary driver is provided on the connecting plate of the pressing seat, and a second universal coupling is inserted on the mounting plate, and one end of the second universal coupling is connected to the axial sleeve of the rotating block located on the pressing seat; the other end of the second universal coupling is coaxially connected to the first gear, the first gear is meshed with the second gear inserted on the connecting plate, the second gear is coaxially arranged with the transmission gear, and the transmission gear is connected to the driving gear coaxially arranged on the working end of the rotary driver through the transmission gear; the diameter and number of teeth of the first gear, the second gear, the transmission gear and the driving gear are the same.

[0019] Preferably, two rotating arms are hingedly installed on the mounting plate, and a tensioning wheel is inserted at the other end of the rotating arm, and the tensioning wheel is located on both sides of the outside of the transmission belt; two push rods extending vertically upward are provided on the frame, and the push rods are located below the rotating arm, and the outer side of the rotating arm is in contact with the top of the push rod, and the pressing seat moves downward to drive the tensioning wheel to squeeze the transmission belt.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] First, the squeezing roller in the present invention is installed on the rotating block, and the rotating block is in the shape of a Reuleaux triangle. The moving trajectory of the rotating block when it rotates can be a square. When the driving unit drives the rotating blocks on the supporting seat and the pressing seat to rotate synchronously in opposite directions, the squeezing roller squeezes the fabric between the supporting seat and the pressing seat and moves parallel to a distance. Compared with the single-point squeezing of the fabric by the squeezing roller in the prior art, the squeezing part of the fabric by the squeezing roller is larger and more comprehensive. When the speed of the squeezing roller rotating back and forth is greater than the moving speed of the fabric, each part of the fabric can be squeezed multiple times, which greatly reduces the moisture content of the fabric, thereby improving the drying efficiency of the drying device. Compared with using a flat plate to squeeze the fabric, the contact between the squeezing roller inserted on the rotating block and the fabric is rolling friction, which has a better protection effect on the fabric.

[0022] Secondly, the present invention sets the outer walls of the supporting seat and the pressing seat into the shape formed by the moving path of the top angle of the rotating block, and ensures that the outer wall of the squeezing roller moves along the top angle of the rotating block, thereby converting the spacing between the squeezing rollers into the spacing on the opposite side of the supporting seat and the pressing seat. A horizontally extending contact surface is set on the opposite side of the supporting seat and the pressing seat, and the distance between the contact surfaces is accurately detected by a distance measuring sensor set on the pressing seat, so that different forces of squeezing and dehydration are performed on fabrics of different thicknesses, thereby improving the applicability of the equipment.

[0023] Third, the driving unit of the present invention drives the rotating blocks on the supporting seat and the pressing seat to rotate synchronously through a rotating driver. The outer side of the rotating arm on the pressing seat is in contact with the top of the vertically upward extending top rod set on the frame. The pressing seat moves downward to make the rotating arm move in contact with the top of the top rod, and then automatically adjusts the horizontal distance between the two tensioning wheels to increase the clamping force of the tensioning wheel on the transmission belt, thereby ensuring the tension of the transmission belt, and then ensuring the transmission effect of the transmission belt on the transmission gear and the driving gear, ensuring that the rotating block on the pressing seat rotates synchronously in the opposite direction with the rotating block on the supporting seat at different height positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional production equipment for pure cotton fabrics Figure 1 ;

[0025] Figure 2 It is a side view of a production equipment for pure cotton fabric;

[0026] Figure 3 yes Figure 2 Cross-sectional view at AA of FIG;

[0027] Figure 4 yes Figure 3 A partial enlarged view of point B;

[0028] Figure 5 yes Figure 3 A partial enlarged view of point C;

[0029] Figure 6 It is a three-dimensional production equipment for pure cotton fabrics Figure 2 ;

[0030] Figure 7 yes Figure 6 A partial enlarged view of point D;

[0031] Figure 8 This is a three-dimensional diagram of a dehydration device in a production equipment for pure cotton fabrics;

[0032] Figure 9 yes Figure 8 A local enlarged view of point E;

[0033] Figure 10 This is a three-dimensional structural exploded diagram of a dehydration device in a production equipment for pure cotton fabrics.

[0034] The numbers in the figure are: 1. Frame; 11. Guide roller; 12. Flattening device; 13. Dehydration device; 14. Drying device; 15. Water collection box; 16. Push rod; 2. Bearing seat; 21. Limit inner groove; 22. Contact surface; 221. Distance sensor; 3. Press seat; 31. Connecting plate; 311. Mounting plate; 312. Second universal joint; 313. First gear; 314. Second gear; 315. Transmission gear; 316. Transmission belt; 317. Rotating arm; 318. Tensioning pulley; 32. Linear drive; 4. Rotating block; 41. Squeeze roller; 42. Limit block; 421. Axial sleeve; 5. Drive unit; 51. Rotating drive; 511. Drive gear; 52. First universal joint. DETAILED DESCRIPTION

[0035] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Reference Figures 1 to 10 :

[0037] A production process for pure cotton fabrics comprises the following steps:

[0038] Step 1: Clean the fabric;

[0039] Step 2: Flatten the cleaned fabric and squeeze and dehydrate it;

[0040] Step 3: Dry the dehydrated fabric and then roll it up.

[0041] A production device for pure cotton fabrics is used in a production process of pure cotton fabrics, including a frame 1, a plurality of horizontal guide rollers 11 are provided on the frame 1, the fabric passes through the guide rollers 11 and moves from the feed end to the discharge end of the frame 1, and the fabric moves in sequence through a flattening device 12, a dehydration device 13 and a drying device 14, the dehydration device 13 includes at least one set of a bearing seat 2 and a pressing seat 3, the bearing seat 2 is fixedly installed at the bottom of the frame 1, and the pressing seat 3 is installed just above the bearing seat 2. The fabric passes through the bearing seat 2 and the pressing seat 3. The supporting seat 2 and the pressing seat 3 are provided with rotating blocks 4 at both ends respectively. The rotating blocks 4 are in the shape of a Reuleaux triangle. The rotating axis of the rotating block 4 is parallel to the axis of the guide roller 11. The driving unit 5 drives the rotating blocks 4 on the supporting seat 2 and the pressing seat 3 to rotate synchronously in opposite directions. The top ends of the rotating blocks 4 are both equipped with squeezing rollers 41. The squeezing rollers 41 on the supporting seat 2 and the pressing seat 3 horizontally squeeze the fabric between the supporting seat 2 and the pressing seat 3. A water collecting tank 15 for collecting water is provided at the bottom of the frame 1.

[0042] The production equipment in this embodiment transports the cleaned fabric through the guide roller 11, and the cleaned fabric first passes through the flattening device 12 on the frame 1. The flattening device 12 flattens the fabric, so that after the fabric is squeezed and dehydrated by the dehydrating device 13, there will not be too many creases that affect the quality of the finished product. The dehydrated fabric is then dried by the drying device 14 to complete the entire production step; the flattening device 12 and the drying device 14 are both existing technologies and will not be described in detail here; the dehydrating device 13 in this embodiment includes at least one group of supporting seats 2 and pressing seats 3 arranged on the frame 1, the supporting seat 2 is fixedly installed at the bottom of the frame 1, and the pressing seat 3 can move up and down above the supporting seat 2 to adjust the distance between the squeezing roller 41 on the supporting seat 2 and the squeezing roller 41 on the pressing seat 3, so as to perform squeezing and dehydration of different strengths for fabrics of different thicknesses, thereby improving the applicability of the equipment; the two ends of the squeezing roller 41 are inserted at the top corners of the rotating block 4, so The squeezing roller 41 can move along with the rotation of the rotating block 4. The rotating block 4 in this embodiment is a Leroy triangle. The moving trajectory of the rotating block 4 when rotating can be a square. When the driving unit 5 drives the rotating block 4 on the supporting seat 2 and the pressing seat 3 to rotate synchronously in opposite directions, the squeezing roller 41 squeezes the fabric between the supporting seat 2 and the pressing seat 3 and moves parallel to one end distance. Compared with the single-point squeezing of the fabric by the squeezing roller in the prior art, the squeezing part of the fabric by the squeezing roller 41 is larger and more comprehensive. When the speed of the squeezing roller 41 rotating back and forth is greater than the moving speed of the fabric, each part of the fabric can be squeezed multiple times, greatly reducing the moisture content of the fabric. Compared with using a flat plate to squeeze the fabric, the contact between the squeezing roller 41 inserted on the rotating block 4 and the fabric is rolling friction, which has a better protection effect on the fabric, thereby improving the drying efficiency of the drying device 14. The water squeezed by the squeezing roller 41 falls into the water collecting box 15 under the frame 1 for collection.

[0043] In order to solve the problem of how to ensure that the rotating block 4 and the squeezing roller 41 do not collide with each other during rotation, the following features are specifically set:

[0044] The cross-sectional shape of the supporting seat 2 and the pressing seat 3 is square, and when the rotating block 4 rotates, its top corner moves along the outer wall circumference of the supporting seat 2 and the pressing seat 3; the radius of the squeezing roller 41 is the same as the distance from the axis of the squeezing roller 41 to the top corner closest to the rotating block 4.

[0045] The supporting seat 2 and pressing seat 3 in this embodiment are square, and the outer parts of the supporting seat 2 and pressing seat 3 are the same as the paths formed by the rotation of the top angle of the rotating block 4, which can ensure that even when the supporting seat 2 and pressing seat 3 are fitted together, the supporting seat 2 and the rotating block 4 on the pressing seat 3 will not collide with each other when their top angles rotate. The squeezing roller 41 is inserted at the top angle of the rotating block 4, and the radius of the squeezing roller 41 is the same as the distance from the axis of the squeezing roller 41 to the nearest top angle of the rotating block 4, so that the outer wall of the squeezing roller 41 and the top angle of the rotating block 4 maintain the same moving trajectory, so that when the rotating block 4 does not collide, the squeezing roller 41 on the supporting seat 2 and the pressing seat 3 will not collide, thereby ensuring the continuous processing.

[0046] In order to ensure the stable rotation of the rotating block 4, the following features are specifically set:

[0047] A limit block 42 is coaxially arranged on the outward side of the rotating block 4. The limit block 42 has the same shape as the rotating block 4. The distance between the top corners of the limit block 42 is smaller than the distance between the top corners of the rotating block 4. The limit block 42 is inserted into the limit inner groove 21 provided in the supporting seat 2 and the pressing seat 3; the rotating block 4 rotates and the limit block 42 is attached to the inner wall of the limit inner groove 21 for limited movement.

[0048] In this embodiment, the rotating block 4 is installed in the limiting inner groove 21 of the supporting seat 2 and the pressing seat 3 through the limiting block 42 to limit the rotation of the rotating block 4. When the driving unit 5 drives the rotating block 4 to rotate, the limiting block 42 is limited and rotated in the limiting inner groove 21 of the supporting seat 2 and the pressing seat 3. The limiting block 42 has the same shape as the rotating block 4 and is smaller than the rotating block 4. The limiting inner groove 21 has the same shape as the outer wall of the supporting seat 2 and the pressing seat 3. When the driving unit 5 drives the limiting block 42 to rotate, the top angle of the limiting block 42 is fitted into the limiting inner groove 21 for limiting movement, which can ensure that the top angle of the rotating block 4 moves stably along the outer wall side of the supporting seat 2 and the pressing seat 3, further ensuring the squeezing effect of the squeezing roller 41 on the fabric between the supporting seat 2 and the pressing seat 3.

[0049] In order to accurately measure the distance between the support base 2 and the squeezing roller 41 on the pressing base 3, the following features are specifically set:

[0050] A horizontally extending contact surface 22 is provided on the opposite side of the supporting seat 2 and the pressing seat 3, and a distance measuring sensor 221 is inserted on the contact surface 22 of the pressing seat 3. The working end of the distance measuring sensor 221 is set toward the contact surface 22 of the supporting seat 2, and the distance measuring sensor 221 is used to detect the distance between the squeezing roller 41 on the supporting seat 2 and the pressing seat 3.

[0051] This embodiment converts the spacing between the squeezing rollers 41 into the spacing between the supporting seat 2 and the pressing seat 3 on the opposite side by setting the outer walls of the supporting seat 2 and the pressing seat 3 into the shape formed by the moving path of the top corner of the rotating block 4, and ensures that the outer wall of the squeezing roller 41 moves along the top corner of the rotating block 4, thereby converting the spacing between the squeezing rollers 41 into the spacing between the supporting seat 2 and the pressing seat 3 on the opposite side. A horizontally extending contact surface 22 is provided on the opposite side of the supporting seat 2 and the pressing seat 3, and the distance between the contact surfaces 22 is accurately detected by a distance measuring sensor 221 provided on the pressing seat 3. The distance measuring sensor 221 can be a laser rangefinder or other device. The working end of the distance measuring sensor 221 is kept horizontal with the contact surface 22 to directly detect the straight-line distance between the opposite sides of the supporting seat 2 and the pressing seat 3. This distance is the spacing between the squeezing rollers 41. The staff can adjust the height position of the pressing seat 3 according to the thickness of the fabric to ensure the squeezing force of the squeezing roller 41 on the fabric when the fabric passes between the supporting seat 2 and the pressing seat 3, and will not affect the passage of the fabric.

[0052] In order to enable the pressing seat 3 to move vertically above the supporting seat 2 to adjust the distance between the squeezing rollers 41, the following features are specifically provided:

[0053] The pressing seats 3 located on both sides of the frame 1 are fixedly connected by a connecting plate 31, and the connecting plate 31 is fixedly connected to the working end of the linear drive 32; the linear drive 32 is fixedly installed on the top of the frame 1, and the working end of the linear drive 32 is set to move in the vertical direction.

[0054] In this embodiment, the pressing seats 3 located on both sides of the frame 1 are connected by a connecting plate 31, and the connecting plate 31 is connected to the working end of the linear drive 32. The linear drive 32 can be a linear cylinder or an electric push rod, etc. The linear drive 32 is fixedly installed on the top of the frame 1 to drive the connecting plate 31 and the pressing seat 3 to move vertically above the supporting seat 2 to adjust the distance between the extrusion rollers 41. A vertical upward guide rod can be provided on the connecting plate 31 to cooperate with the guide hole or guide sleeve provided on the top of the frame 1 to guide the moving path of the pressing seat 3 to ensure that the pressing seat 3 is always directly above the supporting seat 2.

[0055] In order to enable the driving unit 5 to drive the rotating block 4 to rotate, the following features are specifically set:

[0056] The driving unit 5 includes a rotary driver 51 for driving the rotary block 4 to rotate. The rotary driver 51 is fixedly mounted on one side of the frame 1. The working end of the rotary driver 51 is coaxially connected to one end of the first universal coupling 52. The other end of the first universal coupling 52 is inserted into the axial sleeve 421 arranged on the outward side of the limit block 42.

[0057] The center of the axial sleeve 421 is the same as the straight-line distance between each vertex of the limiting block 42 .

[0058] The rotating block 4 in this embodiment is in the shape of a Reuleaux triangle, the rotating block 4 and the limit block 42 are coaxially arranged, the center of the axis sleeve 421 arranged on the outside of the limit block 42 is the same as the straight-line distance between the center and each vertex of the limit block 42, the driving unit 5 is connected to the axis sleeve 421 and the working end of the rotary driver 51 through the first universal coupling 52, the rotating axis of the rotary driver 51 is parallel to the axis of the axis sleeve 421, one end of the first universal coupling 52 is coaxially connected to the working end of the rotary driver 51, and the other end of the first universal coupling 52 is connected to the axis sleeve 421, and the rotary driver 51 can It is a servo motor. When the rotary driver 51 is started, the rotary block 4 is driven to rotate through the first universal coupling 52. When the limit block 42 rotates within the limit inner groove 21, the position of the axis sleeve 421 will move relatively. The existence of the first universal coupling 52 ensures the transmission effect of the rotary driver 51 on the rotary block 4. The rotary block 4 on the supporting seat 2 and the pressing seat 3 can be driven by two rotary drivers 51. The rotary driver 51 ensures that the rotation speed of the rotary block 4 is the same and the rotation direction is opposite through programming. The squeezing roller 41 located at the top corner of the rotary block 4 can move relatively to extrude the fabric.

[0059] In order to achieve synchronous and opposite rotation of the supporting seat 2 and the rotating block 4 on the pressing seat 3 by only one rotating driver 51, the following features are specifically set:

[0060] The first universal coupling 52 connected to the working end of the rotation driver 51 is inserted into the axial sleeve 421 on one side of the rotating block 4 on the bearing seat 2, and the connecting plate 31 of the pressing seat 3 is provided with a mounting plate 311 extending to the upper side of the rotation driver 51, and the second universal coupling 312 is inserted on the mounting plate 311, and one end of the second universal coupling 312 is connected to the axial sleeve 421 of the rotating block 4 located on the pressing seat 3; the other end of the second universal coupling 312 is coaxially connected to the first gear 313, the first gear 313 is meshed with the second gear 314 inserted on the connecting plate 31, and the second gear 314 is coaxially arranged with the transmission gear 315, and the transmission gear 315 is transmission-connected to the driving gear 511 coaxially arranged on the working end of the rotation driver 51 through the transmission gear 315; the first gear 313, the second gear 314, the transmission gear 315 and the driving gear 511 have the same diameter and number of teeth.

[0061] The rotary driver 51 in this embodiment is arranged on one side of the supporting seat 2. The rotary driver 51 is connected to the rotating block 4 on the supporting seat 2 through the first universal coupling 52. When the rotary driver 51 is started, the rotating block 4 on the supporting seat 2 can be driven to rotate. The working end of the rotary driver 51 is also coaxially connected to the driving gear 511. The driving gear 511 rotates following the rotating block 4 and is connected to the transmission gear 315 through the transmission belt 316, so that the transmission gear 315 rotates synchronously with the rotating block 4. The rotation of the transmission gear 315 drives the coaxially arranged second gear 314 to rotate. The second gear 314 is meshed with the first gear 313. The rotation of the second gear 314 can drive the first gear 313 to rotate. The first gear 313 and the second gear 314 are connected to each other by a screw thread, and the screw thread is tightened to the screw thread, so that the first gear 313 and the second gear 314 are connected to each other by a screw thread, so that the screw thread is tightened to the screw thread, and the screw thread is tightened to the screw thread, so that the screw thread is tightened.

[0062] In order to ensure that the driving unit 5 can still transmit and connect the supporting base 2 and the rotating block 4 on the pressing base 3 when the height position of the pressing base 3 changes, the following features are specifically set:

[0063] Two rotating arms 317 are hingedly installed on the mounting plate 311, and a tensioning wheel 318 is inserted at the other end of the rotating arm 317. The tensioning wheel 318 is located on both sides of the outside of the transmission belt 316; two vertically upward extending push rods 16 are provided on the frame 1, and the push rod 16 is located below the rotating arm 317. The outer side of the rotating arm 317 is in contact with the top of the push rod 16, and the pressing seat 3 moves downward to drive the tensioning wheel 318 to squeeze the transmission belt 316.

[0064] The mounting plate 311 provided on one side of the pressing seat 3 in this embodiment is used to install the second universal coupling 312, the first gear 313, the second gear 314 and the transmission gear 315. When the linear drive 32 is started to drive the height position of the pressing seat 3 to change, the second universal coupling 312, the first gear 313, the second gear 314 and the transmission gear 315 move synchronously with the pressing seat 3. The transmission gear 315 is connected to the driving gear 511 through the transmission belt 316. The two rotating arms 317 hinged on the mounting plate 311 are inserted with a tensioning wheel 318 that fits the outside of the transmission belt 316. The tensioning wheel 318 clamps the transmission belt 316 to ensure that the wrap angle between the transmission belt 316 and the transmission gear 315 is greater than or equal to 150 degrees, and also ensures that the wrap angle between the transmission belt 316 and the driving gear 511 is greater than or equal to 150 degrees. When the distance between the supporting seat 2 and the pressing seat 3 is increased, the linear distance between the transmission gear 315 and the driving gear 511 is reduced, and the transmission belt 316 becomes loose, affecting the transmission effect. In this embodiment, the outer side of the rotating arm 317 is in contact with the top of the vertically upward extending push rod 16 set on the frame 1, and the pressing seat 3 moves downward so that the fixed end of the rotating arm 317 is close to the top of the push rod 16. When the outer wall of the rotating arm 317 is in contact with the top of the push rod 16, the horizontal distance between the two tensioning wheels 318 is reduced, thereby automatically adjusting the position of the tensioning wheel 318, so that the clamping force of the tensioning wheel 318 on the transmission belt 316 is increased, ensuring the tension of the transmission belt 316, and thus ensuring the transmission effect of the transmission belt 316 on the transmission gear 315 and the driving gear 511, ensuring that the rotating block 4 on the pressing seat 3 rotates synchronously with the rotating block 4 on the supporting seat 2 at different height positions in the opposite direction.

[0065] Working principle: The cleaned fabric is transported through the guide roller 11, and the cleaned fabric first passes through the flattening device 12 on the frame 1. The flattening device 12 flattens the fabric, so that the fabric passes between the supporting seat 2 and the pressing seat 3 of the dehydration device 13. The driving unit 5 drives the rotating blocks 4 on the supporting seat 2 and the pressing seat 3 to rotate synchronously in the opposite direction. The squeezing roller 41 squeezes and dehydrates the fabric between the supporting seat 2 and the pressing seat 3. The dehydrated fabric is then dried by the drying device 14 to complete the entire production step.

[0066] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A production equipment for pure cotton fabrics, comprising a frame, on which a plurality of horizontal guide rollers are provided, through which the fabric passes through the guide rollers and moves from the feed end to the discharge end of the frame, and the fabric moves sequentially through a flattening device, a dehydrating device and a drying device, characterized in that: The dehydration device includes at least one set of a bearing seat and a pressing seat. The bearing seat is fixedly mounted on the bottom of the frame, and the pressing seat is mounted directly above the bearing seat. The fabric passes between the bearing seat and the pressing seat. A rotating block is provided at both ends of the bearing seat and the pressing seat. The rotating block is in the shape of a Reuleaux triangle. The rotating axis of the rotating block is parallel to the axis of the guide roller. The driving unit drives the rotating blocks on the bearing seat and the pressing seat to rotate synchronously in opposite directions. The top of the rotating block is equipped with a squeezing roller, and the squeezing rollers on the bearing seat and the pressing seat squeeze the fabric between the bearing seat and the pressing seat horizontally; A water collection tank for collecting water is provided at the bottom of the frame; A limit block is coaxially arranged on the outward side of the rotating block. The limit block has the same shape as the rotating block. The distance between the top corners of the limit block is smaller than the distance between the top corners of the rotating block. The limit block is inserted into the limit inner groove provided in the bearing seat and the pressing seat. The rotating block rotates the limiting block to fit the inner wall of the limiting inner groove and move within a limited position; The driving unit includes a rotary driver for driving the rotary block to rotate, the rotary driver being fixedly mounted on one side of the frame, the working end of the rotary driver being coaxially connected to one end of the first universal coupling, and the other end of the first universal coupling being inserted into an axial sleeve provided on the outward side of the limit block; The first universal coupling connected to the working end of the rotary driver is inserted into the axial sleeve on one side of the rotary block on the bearing seat. The connecting plate of the pressing seat is provided with a mounting plate extending to the upper side of the rotary driver. The mounting plate is inserted with the second universal coupling. One end of the second universal coupling is connected to the axial sleeve of the rotary block located on the pressing seat. The other end of the second universal coupling is coaxially connected to the first gear, the first gear is meshed with the second gear inserted on the connecting plate, the second gear is coaxially arranged with the transmission gear, and the transmission gear is connected to the driving gear coaxially arranged on the working end of the rotary driver through the transmission gear; The first gear, the second gear, the transmission gear and the driving gear have the same diameter and the same number of teeth.

2. The production equipment of pure cotton fabric according to claim 1, characterized in that: The cross-section of the bearing seat and the pressing seat is square, and when the rotating block rotates, its top corner moves along the outer wall of the bearing seat and the pressing seat; The radius of the squeezing roller is the same as the distance from the squeezing roller axis to the vertex angle closest to the rotating block.

3. The production equipment of pure cotton fabric according to claim 1, characterized in that: A horizontally extending contact surface is provided on the opposite side of the supporting seat and the pressing seat, and a distance measuring sensor is inserted on the contact surface of the pressing seat. The working end of the distance measuring sensor is set toward the contact surface of the supporting seat. The distance measuring sensor is used to detect the distance between the squeezing rollers on the supporting seat and the pressing seat.

4. The production equipment of pure cotton fabric according to claim 3, characterized in that: The pressing seats on both sides of the frame are fixedly connected by a connecting plate, and the connecting plate is fixedly connected to the working end of the linear actuator; The linear drive is fixedly mounted on the top of the frame, and the working end of the linear drive is arranged to move in a vertical direction.

5. The production equipment of pure cotton fabric according to claim 1, characterized in that: The straight-line distances between the center of the axis sleeve and each vertex of the limiting block are the same.

6. The production equipment of pure cotton fabric according to claim 1, characterized in that: Two rotating arms are hingedly installed on the mounting plate, and the other end of the rotating arm is inserted with a tensioning wheel, which is located on both sides of the outside of the transmission belt; Two vertically upward extending push rods are provided on the frame. The push rods are located below the rotating arm. The outer side of the rotating arm fits against the top of the push rod. The pressing seat moves downward to drive the tensioning wheel to squeeze the transmission belt.

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