A flame retardant fiber knitted fabric production equipment and production process

Abstract

The present invention relates to the field of packaging equipment, and specifically to a flame-retardant fiber knitted fabric production equipment and a production process thereof. The equipment structure comprises a winding roller mounted on an external frame, a cooling roller is further arranged on the external frame at the front end of the winding roller, the cooling roller is mounted on the external frame through a shifting assembly, the shifting assembly drives the cooling roller to shift through a rotating actuator, the shifting assembly comprises a cross frame and a variable flow valve group on the cross frame, the variable flow valve group is used to supply water to the cooling roller in a working state, the present invention comprises a plurality of cooling rollers in front of the winding roller through the shifting assembly, when a cooling roller needs to be cleaned, the rotating actuator drives the cross frame to rotate, so that the cooling roller in a working state and the cooling roller in an idle state are switched, so that the new cooling roller contacts the fabric and the old cooling roller can be disassembled for cleaning, thereby reducing the influence of the cooling roller used for a long time on the fabric without affecting the production process.

Description

Technical Field

[0001] The invention relates to the field of packaging equipment, in particular to a flame retardant fiber knitted fabric production equipment and a production process thereof. Background Art

[0002] In the process of flame retardant fabric production to winding and packaging, steps such as fabric splicing, dyeing, rolling, drying, winding, transportation, modification, re-rolling, re-drying and re-winding are usually carried out. The process is transferred by winding the fabric. Dyeing is used to meet the visual requirements and modification is used to meet the performance requirements. During the modification, the fabric needs to be impregnated with flame retardants or other chemical reagents so that the reagents are fully dispersed in the fabric fibers to improve the flame retardant properties of the fabric.

[0003] After the fabric is dyed and rolled for dehydration, it will pass through a series of roller groups to unwind, cool down and reel up, or pass through cooling rollers to cool down and reel up. After reeling up, it is convenient for handling and transportation. The use of cooling rollers can achieve a relatively rapid cooling effect, but when dyeing with disperse dyes or reactive dyes, some dyes may remain on the surface of the fabric due to incomplete dispersion or incomplete chemical reaction. When the fabric passes through the cooling rollers, these residual dyes are easily condensed on the roller surface due to the sudden drop in temperature, which is easy to affect the roller surface after long-term use. The machine needs to be stopped and disassembled for cleaning, which takes a long time and has a greater impact on the progress of production, winding and process conversion. Summary of the invention

[0004] In view of the above problems, the present invention provides a flame-retardant fiber knitted fabric production equipment and a production process thereof. The flame-retardant fiber knitted fabric production equipment structure includes an outer frame installed at the rear of a rolling section and a winding roller installed on the outer frame. The winding roller is driven to rotate by a rotary actuator to wind up the fabric sent out of the rolling section, wherein a cooling roller is also provided on the outer frame at the front end of the winding roller, and the cooling roller is divided into at least two and is installed on the outer frame through a transposition component; the state of the winding roller includes a working state and an idle state, and the transposition component drives the cooling roller through a rotary actuator The shifting assembly is configured to switch the winding roller between a working state and an idle state; the shifting assembly comprises a cross frame rotatably mounted on an external frame, the cooling roller is arranged on the cross frame, a variable flow valve group is arranged on the cross frame, the variable flow valve group is connected to an external water supply device, and the variable flow valve group is used to supply water to the cooling roller in a working state; the shifting assembly also comprises a fluid side connection block, the cooling roller is detachably mounted on the cross frame and at least one end is connected to the cross frame through a fluid side connection block, a rotary joint is arranged in the fluid side connection block, and the rotary joint is connected to the variable flow valve group through a connecting pipe.

[0005] Furthermore, the water inlet and outlet ends of the cooling roller are located at the same end, and are connected to the variable flow valve group through a connecting pipe via a rotating joint of the fluid side connection block, and the rotating joint includes a water inlet interface and a water return interface; the variable flow valve group is used to open water supply and water return to the cooling roller in a working state, and open water return to the cooling roller in an idle state, and the variable flow valve group includes an extended shaft extending outside the valve body and is connected to an external water supply device through the extended shaft.

[0006] Furthermore, the variable flow valve group has a valve body with a circular valve cavity and a valve core rotatably installed in the valve cavity, the extended shaft drives the valve core to be fixed on the equipment while the valve body rotates with the cross frame; the valve core is provided with two flow channels in the direction of the cooling roller working state, which are the main water supply port and the main water return port respectively, and the valve body is provided with two interfaces in the direction of the cooling roller working state for connecting the main water supply port and the main water return port with the rotary joint, one of the main water supply port and the main water return port is set as a group and the number of groups is consistent with the number of cooling rollers; the valve core is provided with a flow channel in the direction of the cooling roller idle state, which is a secondary return water port, and the valve body has an interface in the direction of the cooling roller idle state for connecting the secondary return water port with a rotary joint connected to another cooling roller, and the other interface is closed by the inner wall of the valve body.

[0007] Furthermore, the fluid side connection block includes a mounting seat, the rotary joint is fixedly installed in the mounting seat, a three-way joint is provided at the water inlet interface of the rotary joint, a receiving end one-way valve is provided at the interface at the top of the three-way joint, the receiving end one-way valve includes a movable valve head and the valve head points to the outside of the mounting seat; a contact air group is provided on the external frame, the contact air group includes a supply end one-way valve and the supply end one-way valve is connected to an external air supply device through an air supply pipe, the supply end one-way valve includes a movable valve head and the valve head points to a transposition component, the receiving end one-way valve rotated to an idle state is against the supply end one-way valve and is connected to each other, the supply end one-way valve connected to the receiving end one-way valve is used to provide air flow to the rotary joint and the cooling roller so that the water in the cooling roller flows to the secondary return water port through the connecting pipe.

[0008] Furthermore, a short seat and a long seat are respectively provided on both sides of the cross frame, and clamping arms are movably installed on both sides of the short seat. One end of the cooling roller is detachably connected to the clamping arm on the short seat through a fluid side connection block, and the other end is rotatably connected to the long seat; a transposition shaft head is provided on both the short seat and the long seat, and the cross frame is rotatably connected to the outer frame through the transposition shaft head, the variable valve is assembled in the short seat, and the extension shaft passes through the transposition shaft head to the outside of the outer frame and is coaxially connected to the extension shaft.

[0009] Furthermore, the clamping arms swing on both sides of the short seat and the swinging axis is parallel to the axis of the cooling roller, and the fluid side connection block is clamped between the clamping arms on both sides, and the clamping arms on both sides are locked and fixed by a locking mechanism to clamp the fluid side connection block; the locking mechanism includes a hook rod and a bite handle, the hook rod passes through the two clamping arms and has a hook-shaped structure at one end of the clamping arm to abut against the clamping arm, the other end of the hook rod is connected to the bite handle, and the states of the bite handle include a locked state and an open state, and the bite handle in the locked state is interference fit with the clamp arm.

[0010] Furthermore, a roller head is provided at the other end of the cooling roller and an axis side connection block is swingably installed on the long seat, and the roller head is embedded and installed on the axis side connection block; a plurality of receiving wheels are provided on the cross frame, and the horizontal height of the receiving wheels decreases successively from the long seat side to the short seat side.

[0011] Furthermore, a clamping shaft assembly is provided in the shaft side connecting block for limiting the axial movement of the cooling roller installed on the cross frame in the working state, and the roller shaft head of the cooling roller cooperates with the clamping shaft assembly in the shaft side connecting block; the clamping shaft assembly releases the restriction on the roller shaft head after the cooling roller swings toward the receiving wheel.

[0012] Furthermore, a recessed limiting ring groove is provided on the roller shaft head, and the clamping shaft assembly includes two clamping rings movably mounted in the shaft side connecting block, and a spring is provided between the clamping ring and the inner wall of the shaft side connecting block, and the spring provides the clamping ring with elastic force to drive it to move into the limiting ring groove; an exhibition plate is provided between the two clamping rings, and a pry arm is provided at the side end of the shaft side connecting block to connect with the exhibition plate, and a recessed giving way groove is provided in the long seat, and the outer end of the pry arm is located in the giving way groove and abuts against the inner wall of the giving way groove, and the pry arm is used to drive the exhibition plate to rotate during the swinging of the shaft side connecting block to move the clamping ring outward.

[0013] A flame retardant fiber knitted fabric production process, including a use step and a transposition step:

[0014] In the use steps, after the fabric is dyed, it is pressed and sent out through the rolling part. The winding roller is driven to rotate by the rotary actuator to wind up the fabric sent out from the rolling part. The cooling roller is in the working state and contacts the passing fabric. When the fabric moves, it also drives the cooling roller to rotate, and the passing fabric is cooled by the cooling roller.

[0015] In the replacement step, when the cooling roller has been working for a long enough time and needs to be cleaned, the rotary actuator drives the cross frame to rotate, so that the cooling roller in the working state and the cooling roller in the idle state are switched, allowing the new cooling roller to contact the fabric.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a plurality of cooling rollers in front of the winding roller, and the cooling rollers are installed by means of a transposition assembly. When a cooling roller needs to be cleaned after working for a sufficiently long time, the rotary actuator drives the cross frame to rotate, so that the cooling roller in the working state and the cooling roller in the idle state are switched, so that the new cooling roller contacts the fabric and the old cooling roller can be removed for cleaning, thereby reducing the influence of the cooling roller in long-term use on the fabric without affecting the production process.

[0018] The present invention also provides a flow-converting valve group in the cross frame and connects the cooling roller through a rotating joint. When the cross frame rotates to change its position, the cooling roller converted to the working position can be connected to the supply and return water of the flow-converting valve group, automatically putting the cooling roller into working state.

[0019] However, the present invention is not limited to this. A receiving-end one-way valve is provided on the rotary joint of the cooling roller, and a supply-end one-way valve is added to the external frame to cooperate with the cooling roller in an idle state. The two one-way valve structures are offset against each other to make the two sides interconnected. The airflow entering the cooling roller drives the water flow in the cooling roller to be discharged through the variable flow valve group, thereby avoiding water overflow when the idle cooling roller is disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of the winding structure of a flame retardant fiber knitted fabric production device.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the cooling roller and the transposition assembly of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram and a partial front cross-sectional schematic diagram of the cooperation between the variable flow valve group and the rotary joint of the present invention.

[0023] Figure 4 It is a schematic diagram of the state of the rotary joint and the contact gas group of the present invention, and a partial front section schematic diagram of the coordination of the two one-way valve structures.

[0024] Figure 5 It is a schematic diagram of the disassembly of the cooling roller on the position change assembly of the present invention and a partial front section schematic diagram of the mutually locked cooperation of the clamping arms.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the shaft side connecting block, the long seat and the cooling roller of the present invention.

[0026] Figure 7 It is a schematic diagram of the state change of the shaft side connecting block and the cooling roller according to the present invention.

[0027] In the figure: 1. rolling section; 2. outer frame; 3. winding roller; 4. cooling roller; 5. shifting assembly; 6. rotary actuator; 7. contact gas group;

[0028] 41. Roller head; 51. Horizontal frame; 52. Clamp arm; 53. Fluid side connection block; 54. Shaft side connection block; 55. Variable flow valve group; 56. Connecting pipe; 57. Receiver wheel; 58. Clamp shaft assembly; 71. Supply end check valve; 72. Air supply pipe;

[0029] 41a, limit ring groove; 51a, short seat; 51b, transposition shaft head; 51c, long seat; 51d, give way groove; 521, hook rod; 522, bite handle; 531, mounting seat; 532, swivel joint; 533, three-way joint; 534, receiving end check valve; 551, valve body; 552, valve core; 553, extension shaft; 581, clamp ring; 582, spring; 583, pry arm; 584, display board;

[0030] 552a, main water supply inlet; 552b, main water return inlet; 552c, auxiliary water return inlet. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Examples, such as Figure 1-Figure 7 As shown: The present invention provides a flame retardant fiber knitted fabric production equipment, the equipment structure includes an outer frame 2 and a winding roller 3 installed on the outer frame 2. After the fabric is dyed, it is pressed and sent out by the rolling part 1. The outer frame 2 is installed behind the rolling part 1. The winding roller 3 is driven to rotate by the rotary actuator 6 to wind up the fabric sent out from the rolling part 1, so that it can be moved to the drying station for drying and then the next flame retardant modification is carried out. The fabric is immersed in the flame retardant to allow the flame retardant to penetrate into the fiber of the fabric, so that the fabric has flame retardant performance;

[0033] A cooling roller 4 is also provided on the outer frame 2 between the front end of the winding roller 3 and the rolling part 1. There are at least two cooling rollers 4 and they are mounted on the outer frame 2 through a transposition assembly 5. In this embodiment, two cooling rollers 4 are replaced in turn. During use, the state of the winding roller 3 is divided into a working state and an idle state. The transposition assembly 5 drives the cooling roller 4 to be transposed by the rotating actuator 6 so that the winding roller 3 switches between the working state and the idle state, thereby replacing the cooling roller 4 that is cooling the fabric, so that the cooling roller 4 that needs to be cleaned can be idle and disassembled separately. In this embodiment, the lower state is used as the working state;

[0034] Therefore, the cooperation between the transposition component 5 and the cooling roller 4 mainly includes the main body of the transposition component 5, the rotation connection part between the transposition component 5 and the cooling roller 4, and the water connection part between the transposition component 5 and the cooling roller 4;

[0035] As for the main body of the transposition component 5, the transposition component 5 includes a horizontal frame 51 rotatably mounted on the outer frame 2, two cooling rollers 4 are respectively arranged on the upper and lower sides of the horizontal frame 51, and a short seat 51a and a long seat 51c are respectively arranged on both sides of the horizontal frame 51, and a transposition shaft head 51b is arranged on the short seat 51a and the long seat 51c, and the horizontal frame 51 is rotatably connected with the outer frame 2 through the transposition shaft head 51b, and the rotary actuator 6 drives the transposition shaft head 51b on one side of the long seat 51c to drive the horizontal frame 51 to rotate on the outer frame 2. It can be known that the rotary actuator 6 can adopt a reduction motor;

[0036] Clamping arms 52 are movably installed on both sides of the short seat 51a so that the short seat 51a can be opened and expanded, and can also obtain a length similar to that of the long seat 51c. One end of the cooling roller 4 is installed on the long seat 51c and the other end is installed on the clamping arm 52, and a plurality of receiving wheels 57 are provided on the cross frame 51. The horizontal height of the receiving wheel 57 is gradually reduced from the long seat 51c side to the short seat 51a side, so as to allow the cooling roller 4 to move toward the opening direction of the expanded clamping arm 52, so as to facilitate disassembly.

[0037] It should be noted that, in this embodiment, the water inlet and outlet ends of the cooling roller 4 are located at the same end, and a transfer roller with a movable margin is provided between the cooling roller 4 station and the winding roller 3. When the contact length of the cooling roller 4 with the fabric changes due to position change, the transfer roller continues to tension the fabric through elastic activity.

[0038] For the rotational connection between the transposition component 5 and the cooling roller 4, the transposition component 5 also includes a fluid side connection block 53 and an axis side connection block 54. Since the cooling roller 4 has only one end for water inlet and outlet, the end of the cooling roller 4 for water inlet and outlet is detachably connected to the clamping arm 52 on the short seat 51a through the fluid side connection block 53. The fluid side connection block 53 includes a mounting seat 531 and a rotary joint 532 installed in the mounting seat 531. The water inlet and outlet ends of the cooling roller 4 are connected to the rotary joint 532. It is known to those skilled in the art that the rotary joint 532 is a device that allows liquid to flow in and out of the roller body and the joint in a sealed manner when the roller body rotates. Therefore, the cooling roller 4 has the freedom to rotate around its own axis on the fluid side connection block 53.

[0039] The other end of the cooling roller 4 is provided with a roller head 41, and a shaft side block 54 is swingably mounted on the long seat 51c. The roller head 41 is embedded and mounted on the shaft side block 54, and retains the freedom of rotation around its own axis on the shaft side block 54, so that both ends of the cooling roller 4 are mounted on the horizontal frame 51 and can rotate around the axis direction of the cooling roller 4 on the horizontal frame 51;

[0040] For the water connection between the transposition assembly 5 and the cooling roller 4, a variable flow valve group 55 is provided on the cross frame 51, and the variable flow valve group 55 is installed in the short seat 51a. The variable flow valve group 55 is connected to the external water supply equipment. The cooling roller 4 is detachably installed on the cross frame 51 and at least one end is connected to the cross frame 51 through the fluid side connection block 53. In this embodiment, the variable flow valve group 55 is arranged on the side where the water inlet and water outlet of the cooling roller 4 are located at the same end, and the rotary joint 532 is connected to the variable flow valve group 55 through the connecting pipe 56. Therefore, the water inlet and outlet ends of the cooling roller 4 are connected to the variable flow valve group 55 through the rotary joint 532 of the fluid side connection block 53 and the connecting pipe 56. In this embodiment, the connecting pipe 56 is detachably connected to the variable flow valve group 55 and the rotary joint 532 through a nut joint;

[0041] The variable flow valve group 55 is mainly used to supply water to the cooling roller 4 in the working state. Since the cooling roller 4 in this embodiment has water inlet and outlet at only one end, the variable flow valve group 55 also opens the return water to the cooling roller 4 in the working state at this end, and opens the return water to the cooling roller 4 in the idle state.

[0042] To this end, the variable flow valve group 55 has a valve body 551 with a circular valve cavity inside and a valve core 552 rotatably installed in the valve cavity, and also includes an outward extension shaft 553 extending outward from the valve body 551. The valve core 552 is connected to the external water supply equipment through the outward extension shaft 553. The outward extension shaft 553 passes through the transposition shaft head 51b to the outside of the external frame 2 and is coaxially connected and fixedly installed with the outward extension shaft 553. The outward extension shaft 553 drives the valve core 552 to be fixed on the equipment while the valve body 551 rotates with the horizontal frame 51; subsequently, the valve core 552 is provided with two flow channels in the direction of the working state of the cooling roller 4, which are the main water supply port 552a and the main water return port 552b respectively, and the valve body 551 Two interfaces are provided in the direction of the working state of the cooling roller 4 for connecting the main water supply port 552a and the main return water port 552b with the rotary joint 532. One main water supply port 552a and the main return water port 552b are set as a group and the number of groups is consistent with the number of cooling rollers 4, that is, two groups are provided at the upper and lower ends of the valve body 551; the valve core 552 is provided with a flow channel and a secondary return water port 552c in the direction of the idle state of the cooling roller 4, and the valve body 551 has an interface in the direction of the idle state of the cooling roller 4 for connecting the secondary return water port 552c with the rotary joint 532 connected to another cooling roller 4, and the other interface is closed by the inner wall of the valve body 551.

[0043] Moreover, a three-way joint 533 is provided at the water inlet interface of the rotary joint 532, and a receiving end one-way valve 534 is provided at the interface at the top of the three-way joint 533, and the receiving end one-way valve 534 includes a movable valve head and the valve head points to the outside of the mounting seat 531; a contact gas group 7 is provided on the outer frame 2, and the contact gas group 7 includes a supply end one-way valve 71 and the supply end one-way valve 71 is connected to the external gas supply equipment through the gas supply pipe 72, and the supply end one-way valve 71 includes a movable valve head and the valve head points to the transposition component 5. It should be noted that both valve heads extend out of the one-way valve structure On the outside of the cooling roller 4, when the cooling roller 4 rotates to an idle state, the valve heads of the receiving-end one-way valve 534 and the supply-end one-way valve 71 abut against each other and are connected to each other. The supply-end one-way valve 71 provides airflow to the rotary joint 532 and the cooling roller 4 through the receiving-end one-way valve 534. The airflow causes the water in the cooling roller 4 to flow through the connecting pipe 56 to the secondary return water port 552c. Optionally, a rubber ring may be provided at the opening of the supply-end one-way valve 71 or the opening of the receiving-end one-way valve 534 to make the two one-way valve structures more airtight when they abut against each other and reduce airflow overflow.

[0044] In summary, the present invention provides a production process for flame-retardant fiber knitted fabrics. In specific implementation, the use step is first entered. After the fabric is dyed, it is pressed and sent out through the rolling part 1. The winding roller 3 is driven to rotate by the rotary actuator 6 to wind up the fabric sent out from the rolling part 1. The cooling roller 4 is in a working position and contacts with the passing fabric. When the fabric moves, it also drives the cooling roller 4 to rotate, and the passing fabric is cooled by the cooling roller 4.

[0045] At this time, the external water supply device delivers water to the extended shaft 553, and the water flows from the main water supply port 552a of the valve core 552 through the valve body 551 and the connecting pipe 56 to the water inlet end of the rotary joint 532, and then enters the cooling roller 4. After flowing in the cooling roller 4, the passing fabric is cooled by heat exchange, and the heated water flows out from the water outlet end of the same end of the cooling roller 4, and flows through the water outlet end of the rotary joint 532, the connecting pipe 56, and the valve body 551 to the main water return port 552b of the valve core 552, and then enters the extended shaft 553 to be discharged outward;

[0046] Then, the step of switching positions is entered. When the cooling roller 4 has been in the working state for a long enough time and needs to be cleaned, the rotary actuator 6 drives the horizontal frame 51 to rotate, so that the cooling roller 4 in the working state and the cooling roller 4 in the idle state are switched up and down.

[0047] At this time, the extended shaft 553 and the valve core 552 remain stationary, and the valve body 551 rotates around the valve core 552. The main water supply port 552a and the main water return port 552b on the valve core 552 are connected to another set of interfaces on the valve body 551, and only the auxiliary water return port 552c is left at the top to be connected to the water outlet end of the idle cooling roller 4. When the cooling roller 4 rotates to the idle state, the valve heads of the receiving end check valve 534 and the supply end check valve 71 are abutted against each other and are connected to each other. The supply end check valve 71 provides airflow to the rotary joint 532 and the cooling roller 4 through the receiving end check valve 534. The airflow causes the water in the cooling roller 4 to be discharged from the water outlet end of the rotary joint 532, and then flows to the auxiliary water return port 552c through the connecting pipe 56 and is discharged from the extended shaft 553 to the outside, so as to avoid residual water flowing out when the cooling roller 4 is disassembled.

[0048] Finally, the disassembly and replacement step is entered. The clamping arms 52 swing on both sides of the short seat 51a and the swing axis is parallel to the axis of the cooling roller 4. The clamping arms 52 on both sides are locked and fixed by a locking mechanism to clamp the fluid side connection block 53. In this embodiment, the locking mechanism includes a hook rod 521 and a bite handle 522. The hook rod 521 passes through the two clamping arms 52 and has a hook-shaped structure at one end of the clamping arm 52 to abut against the clamping arm 52. The other end of the hook rod 521 is connected to the bite handle 522. The states of the bite handle 522 include a locked state and an open state. The bite handle 522 in the locked state is interference fit with the clamping arm 52. When disassembling, the bite handle 522 is unfolded from the clamp arm 52 to an open state. At this time, the interference fit between the bite handle 522 and the clamp arm 52 is released. Then the hook rod 521 is twisted to pass through the slot on the clamp arm 52, so that the hook structure releases the contact with the clamp arm 52 on the other side, thereby releasing the clamp arms 52 on both sides. At this time, the fluid side connection block 53 on one side of the cooling roller 4 loses its restriction, swings downward and swings onto the receiving wheel 57, and then the cooling roller 4 is pulled out from the shaft side connection block 54, and the cooling roller 4 is moved toward the opening direction of the unfolded clamp arm 52 along the descending direction of the receiving wheel 57, so that disassembly and cleaning can be carried out conveniently and quickly.

[0049] Moreover, in this embodiment, a clamping shaft assembly 58 is provided in the shaft side block 54, and the roller shaft head 41 of the cooling roller 4 cooperates with the clamping shaft assembly 58 in the shaft side block 54, so as to limit the axial movement of the cooling roller 4 installed on the horizontal frame 51 in the working state. The clamping shaft assembly 58 releases the restriction on the roller shaft head 41 after the cooling roller 4 swings toward the receiving wheel 57, so as to be synchronized with the disassembly state of the cooling roller 4;

[0050] Specifically, a recessed limiting ring groove 41a is provided on the roller shaft head 41, and the clamping shaft assembly 58 includes two clamping rings 581 movably mounted in the shaft side connecting block 54, and a spring 582 is provided between the clamping ring 581 and the inner wall of the shaft side connecting block 54, and the spring 582 provides the clamping ring 581 with elastic force to drive it to move into the limiting ring groove 41a. When the cooling roller 4 is in a working state, the clamping ring 581 is clearance-matched with the limiting ring groove 41a in the shaft side connecting block 54, and the axial movement of the cooling roller 4 is limited on the basis of having a reasonable movement margin, and an expansion plate 584 is provided between the two clamping rings 581, and a pry arm 583 is provided at the side end of the shaft side connecting block 54 and connected to the expansion plate 584, and a recessed giving way groove 51d is provided in the long seat 51c, and the outer end of the pry arm 583 is located in the giving way groove 51d and It is known that the outer end of the pry arm 583 has an extension structure which is perpendicular to the axis of the pry arm 583 and is against the inner wall of the give way groove 51d. During the swinging of the shaft side block 54, a lever structure is formed by the extension structure of the pry arm 583. The distance between the pry arm 583 and the inner wall of the give way groove 51d changes, causing the pry arm 583 to rotate, driving the display plate 584 to rotate and moving the clamping ring 581 outward. Therefore, when the idle cooling roller 4 is dismantled, the restriction of the clamping shaft assembly 58 at the other end of the cooling roller 4 can be released without performing other operations. It is known that at the same rotation angle, the longer the length of the display plate 584, the longer the moving distance of the clamping ring 581. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A flame retardant fiber knitted fabric production equipment, which structure includes an outer frame installed behind a rolling part and a winding roller installed on the outer frame, the winding roller is driven to rotate by a rotary actuator to wind up the fabric sent out from the rolling part, characterized in that: A cooling roller is also provided on the outer frame at the front end of the winding roller, and at least two cooling rollers are provided and are mounted on the outer frame through a transposition assembly; The state of the winding roller includes a working state and an idle state, and the position change component drives the cooling roller to change position by rotating the actuator, so that the winding roller switches between the working state and the idle state; The transposition assembly comprises a cross frame rotatably mounted on the outer frame, the cooling rollers are arranged on the cross frame, a variable flow valve group is arranged on the cross frame, the variable flow valve group is connected to an external water supply device, and the variable flow valve group is used to supply water to the cooling rollers in a working state; The transposition assembly further comprises a fluid side connection block, the cooling roller is detachably mounted on the cross frame and at least one end is connected to the cross frame through the fluid side connection block, a rotary joint is arranged in the fluid side connection block, and the rotary joint is connected to the variable flow valve group through a connecting pipe; The water inlet and outlet of the cooling roller are located at the same end, and are connected to the variable flow valve group through a rotating joint of the fluid side connection block via a connecting pipe, and the rotating joint includes a water inlet interface and a water return interface; The variable flow valve group is used to open water supply and return water to the cooling roller in the working state, and open water return to the cooling roller in the idle state. The variable flow valve group includes an extension shaft extending outside the valve body and is connected to the external water supply device through the extension shaft; The variable flow valve group has a valve body with a circular valve cavity and a valve core rotatably mounted in the valve cavity, the outwardly extending shaft drives the valve core to be fixed on the device while the valve body rotates with the cross frame; The valve core is provided with two flow channels in the direction of the working state of the cooling roller, which are respectively the main water supply port and the main water return port. The valve body is provided with two interfaces in the direction of the working state of the cooling roller for connecting the main water supply port and the main water return port with the rotary joint. The main water supply port and the main water return port are set as a group, and the number of groups is consistent with the number of cooling rollers. The valve core is provided with a flow channel in the direction of the idle state of the cooling roller, which is a secondary water return port. The valve body is provided with an interface in the direction of the idle state of the cooling roller, which is used to connect the secondary water return port with a rotary joint connected to another cooling roller, and the other interface is closed by the inner wall of the valve body. The fluid side connection block includes a mounting seat, the rotary joint is fixedly mounted in the mounting seat, a three-way joint is provided at the water inlet interface of the rotary joint, a receiving end one-way valve is provided at the interface at the top of the three-way joint, and the receiving end one-way valve includes a movable valve head and the valve head points to the outside of the mounting seat; A contact gas group is provided on the outer frame, and the contact gas group includes a supply-end one-way valve, and the supply-end one-way valve is connected to an external gas supply device through an air supply pipe. The supply-end one-way valve includes a movable valve head, and the valve head points to a transposition component. The receiving-end one-way valve rotated to an idle state is against the supply-end one-way valve and is connected to each other. The supply-end one-way valve connected to the receiving-end one-way valve is used to provide air flow to the rotary joint and the cooling roller so that the water in the cooling roller flows to the secondary return water port through the connecting pipe.

2. The flame retardant fiber knitted fabric production equipment according to claim 1, characterized in that: A short seat and a long seat are respectively provided on both sides of the horizontal frame, and clamping arms are movably installed on both sides of the short seat. One end of the cooling roller is detachably connected to the clamping arm on the short seat through a fluid side connection block, and the other end is rotatably connected to the long seat; The short seat and the long seat are both provided with a transposition shaft head and the cross frame is rotatably connected to the outer frame through the transposition shaft head. The variable flow valve is assembled in the short seat, and the extended shaft passes through the transposition shaft head to the outside of the outer frame and is coaxially connected to the extended shaft.

3. The flame retardant fiber knitted fabric production equipment according to claim 2, characterized in that: The clamping arms swing on both sides of the short seat and the swinging axis is parallel to the axis of the cooling roller. The fluid side connection block is clamped between the clamping arms on both sides. The clamping arms on both sides are locked and fixed by a locking mechanism to clamp the fluid side connection block. The locking mechanism includes a hook rod and a bite handle. The hook rod passes through two clamp arms and has a hook-shaped structure at one end of the clamp arm to abut against the clamp arm. The other end of the hook rod is connected to the bite handle. The states of the bite handle include a locked state and an open state. The bite handle in the locked state is interference fit with the clamp arm.

4. The flame retardant fiber knitted fabric production equipment according to claim 2 or 3, characterized in that: The other end of the cooling roller is provided with a roller shaft head and a shaft side connection block is swingably mounted on the long seat, and the roller shaft head is embedded and mounted on the shaft side connection block; A plurality of receiving wheels are arranged on the cross frame, and the horizontal heights of the receiving wheels decrease in sequence from the long seat side to the short seat side.

5. The flame retardant fiber knitted fabric production equipment according to claim 4, characterized in that: A clamping shaft assembly is provided in the shaft side connection block for limiting the axial movement of the cooling roller mounted on the horizontal frame in the working state, and the roller head of the cooling roller cooperates with the clamping shaft assembly in the shaft side connection block; The clamping shaft assembly releases the restriction on the roller shaft head after the cooling roller swings toward the receiving wheel.

6. The flame retardant fiber knitted fabric production equipment according to claim 5, characterized in that: The roller shaft head is provided with a concave limiting ring groove, the clamping shaft assembly comprises two clamping rings movably mounted in the shaft side connection block, a spring is provided between the clamping ring and the inner wall of the shaft side connection block, and the spring provides elastic force for the clamping ring to drive it to move into the limiting ring groove; An exhibition board is provided between the two clamping rings, a pry arm is provided at the side end of the shaft side connecting block and connected to the exhibition board, a recessed clearance groove is provided in the long seat, the outer end of the pry arm is located in the clearance groove and abuts against the inner wall of the clearance groove, and the pry arm is used to drive the exhibition board to rotate and move the clamping ring outward during the swinging of the shaft side connecting block.

7. A flame retardant fiber knitted fabric production process, characterized in that: The method is carried out using the production equipment according to any one of claims 1 to 6, comprising a using step and a transposition step: In the use steps, after the fabric is dyed, it is pressed and sent out through the rolling part. The winding roller is driven to rotate by the rotary actuator to wind up the fabric sent out from the rolling part. The cooling roller is in the working state and contacts the passing fabric. When the fabric moves, it also drives the cooling roller to rotate, and the passing fabric is cooled by the cooling roller. In the replacement step, when the cooling roller has been working for a long enough time and needs to be cleaned, the rotary actuator drives the cross frame to rotate, so that the cooling roller in the working state and the cooling roller in the idle state are switched, allowing the new cooling roller to contact the fabric.

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