Rotary guide rod convenient to adjust

Abstract

The utility model relates to the technical field of fixed guide frames for spinning, in particular to a rotary guide rod convenient to adjust, which comprises a rotary component and a mounting component, the rotary component is obliquely arranged on a heat treatment machine through the mounting component, the rotary component comprises a guide rod body, and the guide rod body is rotatably arranged at an outlet of the heat treatment machine. The inclination angle between the guide rod body and the horizontal plane is 20-60 degrees, the inclination direction of the guide rod body is the same as the deviation direction of the tow, and the lower surface of the tow is in rolling contact with the guide rod body. According to the utility model, the problems that fiber tows deviate and the tows are damaged by friction due to friction between the tows and the guide rod can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of a fixed guide frame for spinning, in particular to a rotary guide rod which is easy to adjust. Background Art

[0002] Vinylon (polyvinyl alcohol fiber) is a widely used synthetic fiber. It is a synthetic fiber made of polyvinyl alcohol as raw material and water as solvent by wet spinning. The nascent fibers formed by spinning contain a large amount of water, low strength, and high elongation. They have no practical use and need to be dried, preheated, stretched, cooled, and other heat treatments to obtain fibers with certain mechanical properties, water-soluble temperature, and thickness. Among them, the heat treatment of vinylon tows is usually carried out in multiple heat treatment machines, which include a dryer, a preheater, a stretcher, a cooler, etc. arranged in sequence. After the vinylon fiber tows are processed by these devices in turn, they are wound and collected by a winding machine to enter the post-processing stage; however, in the actual production process, the active rollers of these devices cannot be adjusted to absolute parallelism. The tows are easily offset after being transmitted through several non-parallel rollers, and then interfere with the shell of the heat treatment machine. In order to ensure the position of the tows, the usual solution is to set a limit guide rod at the outlet of the heat treatment machine.

[0003] The type of limit guide rods previously used by our company mainly include guide rod one and guide rod two. The shapes and uses of the two guide rods are as follows Figure 1-2 As shown, the guide rod 11 is a U-shaped structure, which is arranged at the exit of the dryer, preheater and stretcher. The tow 10 passes through the middle of the U-shaped guide rod during normal operation and does not contact the edges on both sides of the guide rod; the guide rod 2 12 is a straight-line structure, which is arranged between the cooling roller and the traction roller of the cooling machine. The tow 10 passes through the guide rod 2 12. When in use, the position of the tow is controlled by adjusting the inclination angle of the guide rod 2 12. However, the above two guide rods still have the following technical problems in actual use:

[0004] 1. Although the guide rod can maintain the position of the tow, when the tow deviates, it will rub against one side edge of the guide rod, resulting in the production of fuzzy and doubly yarns. At this time, the operator needs to frequently adjust the passive roller angle of the heat treatment machine according to the offset position of the tow to correct the running direction of the tow, which is very troublesome.

[0005] 2. Although the position of the tow can be controlled by adjusting the inclination angle of the guide rod 2, the tow passes directly over the guide rod 2, and the tow is always rubbing against the guide rod, resulting in the tow having twisted and fuzzy threads, which reduces the quality of the tow. Utility Model Content

[0006] The utility model provides a rotatable guide rod which is easy to adjust, and can solve the problems of deviation of fiber bundles and friction damage to the bundles caused by friction between the bundles and the guide rod.

[0007] This application provides the following technical solutions:

[0008] A rotatable guide rod which is easy to adjust, comprising a rotatable assembly and a mounting assembly, wherein the rotatable assembly is tiltedly arranged on a heat treatment machine through the mounting assembly, the rotatable assembly comprises a guide rod body, and the guide rod body is rotatably arranged at the outlet of the heat treatment machine, the guide rod body has an inclination angle of 20°-60° with the horizontal plane, and the inclination direction of the guide rod body is the same as the offset direction of the filament bundle, and the lower surface of the filament bundle is in rolling contact with the guide rod body.

[0009] Beneficial effects:

[0010] 1. The guide rod body is rotatably arranged at the outlet of the heat treatment machine. When the tow is offset, rolling friction occurs with the guide rod body. The rolling friction causes little friction damage to the tow, and the occurrence of hairy and twisted fibers in the tow is significantly reduced, thereby ensuring the quality of the tow. At the same time, the inventor found that after using the rotating guide rod of the present application, the number of agglomerated fibers that cannot be dispersed in the fiber is significantly reduced, and the primary rate of fiber dispersion grade is increased from 30%-50% to more than 90%, producing an unexpected technical effect; the inventor analyzed it and found that the continuous friction will cause the contacting fibers to break, and such broken fibers are the main source of agglomerated fibers; the details of the agglomerated fibers can be observed using a high-power microscope, and several fibers are entangled outside dozens to hundreds of fiber bundles. Since the fibers are entangled, they are difficult to disperse, thereby finding the key factor that makes it difficult to effectively improve the primary rate of fiber dispersion grade.

[0011] 2. Since the friction between the yarn bundle and the guide rod body is small, even if the yarn bundle contacts the guide rod body after being offset, there is no need to frequently adjust the passive roller angle of the processing machine to correct the position of the yarn bundle. After the guide rod body contacts the yarn bundle, it can exert a reaction force on the yarn bundle, balance the offset force of the yarn bundle, and ensure the position of the yarn bundle, so that the yarn bundle can face the entrance of the next device after coming out of the outlet of the previous device, solving the problem of friction between the offset of the yarn bundle and the equipment shell.

[0012] 3. The inclination direction of the guide rod body is the same as the offset direction of the tow, which can not only guide and limit the tow, but also avoid the problem of shrinkage, adhesion, and entanglement of the edges of the sheet tow due to the large extrusion force exerted by the guide rod body on the tow. Among them, the inclination angle of the guide rod body will also affect the quality of the fiber tow and the limiting effect; when the angle between the guide rod body and the horizontal plane is less than 20°, the reaction force exerted by the guide rod on the tow is small, and the tow is easy to slip on the guide rod, resulting in poor limiting effect; when the inclination angle is greater than 60°, the reverse extrusion force exerted by the guide rod on the tow is too large, and the edge of the tow is easy to shrink, affecting the quality of the tow.

[0013] Furthermore, the rotating assembly also includes a guide rod shaft and a bearing. The guide rod body is arranged at one end of the guide rod shaft through the bearing. The guide rod body is rotatably connected to the guide rod shaft, and the other end of the guide rod shaft is a mounting end.

[0014] Beneficial effect: Providing the bearing can reduce the friction between the guide rod body and the guide rod shaft, and increase the service life of the rotating component.

[0015] Furthermore, the mounting assembly includes a mounting seat and a support rod and an adjustment rod vertically arranged on the mounting seat. The mounting end of the guide rod shaft is hinged to the top of the support rod and the adjustment rod in turn. The adjustment rod is slidably arranged on the mounting seat and locked by a fastener.

[0016] Beneficial effect: When the inclination angle of the guide rod body needs to be adjusted, loosen the fastener and adjust the height of the adjusting rod. The higher the top height of the adjusting rod, the greater the angle between the guide rod body and the horizontal plane. After adjusting to the appropriate height, the adjusting rod is locked and fixed by the fastener. The adjustment method is simple and convenient.

[0017] Furthermore, the mounting base includes a base plate and side plates, the base plate is provided with a through strip groove along its length direction, the bottom of the support rod is fixedly arranged on the base plate, the bottom of the adjustment rod passes through the strip groove and is locked by a fastener.

[0018] Beneficial effect: a strip groove is arranged on the bottom plate of the mounting seat, so as to facilitate adjustment of the lateral position of the support rod and the adjusting rod on the bottom plate, and then adjust the horizontal installation position of the guide rod body at the outlet of the heat treatment machine, which has strong adjustability and can be applied to different equipment.

[0019] Furthermore, the support rod is a U-shaped structure with an opening facing upward, and the mounting end of the guide rod shaft is rotatably arranged at the U-shaped opening of the support rod through a pin shaft; the bottom of the support rod is fixed to the base plate through a fastener.

[0020] Beneficial effect: The guide rod shaft can be conveniently rotatably mounted on the support rod, and is convenient for assembly and disassembly.

[0021] Furthermore, the rotating guide rod includes guide rod one and guide rod two, guide rod one is obliquely arranged at the exit of the dryer, preheater and stretcher, and guide rod two is obliquely arranged between the cooling roller and the traction roller of the cooler.

[0022] Beneficial effect: Guide rod one is used to ensure that the yarn bundle is aligned with the entrance of the next equipment, and the bottom surface of the yarn bundle passes through the surface of guide rod two. Guide rod two is used to correct the position of the yarn bundle so that the yarn bundle passes through the center of the roller surface of the traction roller after coming out of the cooling roller, avoiding the yarn bundle from running off and rubbing against the flange of the traction roller.

[0023] Furthermore, the included angle between the guide rod 1 and the horizontal plane is 20°-40°, and preferably, the inclination angle of the guide rod 1 is 30°.

[0024] Beneficial effects: It can ensure that the rotating guide rod is in contact with the lower surface of the wire bundle, exert appropriate force on the wire bundle, balance the deviation force of the wire bundle, and keep the wire bundle in the direction of travel, always facing the entrance of the next device. When the inclination angle is greater than 40°, the rotating guide rod is in contact with the lower surface of the wire bundle, and the force exerted on the wire bundle on one side of the inclination direction of the guide rod is large, and the force exerted on the wire bundle on the other side is small, so that the wire bundle on the side of the inclination direction of the guide rod is squeezed and contracted, indicating that the force exerted by the guide rod on the wire bundle is too large. At this time, the friction between the wire bundle and the guide rod is also greatly increased, which can easily cause the wire bundle on one side to shrink, break, and wire doubling. When it is less than 20°, the rotating guide rod is in contact with the lower surface of the wire bundle, and the force exerted on the wire bundle is small, which cannot balance the deviation force of the wire bundle, and the effect of correcting the deviation of the wire bundle is small, making it difficult to ensure that the wire bundle is facing the entrance of the next device.

[0025] Furthermore, the included angle between the guide rod 2 and the horizontal plane is 30°-60°, and preferably, the inclination angle of the guide rod 2 is 45°.

[0026] Beneficial effects: Since the bottom surface of the wire bundle is completely in contact with the surface of guide rod two, when guide rod two is at a certain inclination angle, the wire bundle changes from a horizontal state to an inclined state, which leads to inconsistent force on the width direction of the wire bundle. The greater the inclination angle of guide rod two with the horizontal plane, the greater the difference in force on both sides of the wire bundle; when the inclination angle is greater than 60°, the force on the upper side of the wire bundle is greater than that on the lower side, and the upper side wire bundle will deviate downward on guide rod two, causing the wire bundle to shrink, indicating that guide rod two applies too much force on the wire bundle, and the friction between the wire bundle and guide rod two increases accordingly; when the inclination angle of guide rod two with the horizontal plane is less than 30°, although the friction between the wire bundle and the guide rod is reduced, the guide rod has a small corrective steering effect on the wire bundle, making it difficult to ensure that the wire bundle passes through the center of the roller surface of the traction roller.

[0027] Furthermore, the surface roughness of the guide rod body is Ra0.8-1.2 μm.

[0028] Beneficial effect: The friction of the guide rod body on the wire bundle can be reduced, and at the same time, the wire bundle will not slip on the guide rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an existing guide rod 1;

[0030] Figure 2 It is a structural schematic diagram of the existing guide rod 2;

[0031] Figure 3 It is a structural schematic diagram of the rotating guide rod in the present invention;

[0032] Figure 4 for Figure 3 Left view of;

[0033] Figure 5 for Figure 3 A top view of the middle mounting seat;

[0034] Figure 6 It is a schematic diagram of the installation of the rotating guide rod on the heat treatment machine;

[0035] Figure 7 Schematic diagram of the installation of the rotating guide rod on the cooler. DETAILED DESCRIPTION

[0036] The following is further described in detail through specific implementation methods:

[0037] The marks in the drawings of the specification include: a yarn bundle 10, a guide rod 1 11, a guide rod 2 12, a guide rod body 1, a guide rod shaft 2, a bearing 21, a support rod 22, a mounting seat 3, a bottom plate 31, a strip groove 310, a side plate 32, a mounting hole 320, a support rod 4, a base 41, a pin 45, an adjusting rod 5, a top seat 51, a dryer 6, a preheater 7, a stretcher 8, a cooler 9, a cooling roller 91, and a pulling roller 92.

[0038] Example

[0039] A rotating guide rod that is easy to adjust, the rotating guide rod comprises a rotating assembly and a mounting assembly, the rotating assembly is tiltedly arranged on a heat treatment machine through the mounting assembly, such as Figure 3 As shown, the rotating assembly includes a guide rod body 1, which is rotatably arranged at the outlet of the heat treatment machine. The inclination angle of the guide rod body 1 to the horizontal plane is 20°-60°, and the inclination direction of the guide rod body 1 is the same as the offset direction of the filament bundle 10, and the lower surface of the filament bundle 10 is in rolling contact with the guide rod body 1.

[0040] like Figure 3-4 As shown, the rotating assembly also includes a guide rod shaft 2 and a bearing 21. The guide rod body 1 is arranged at one end of the guide rod shaft 2 through the bearing 21. The guide rod body 1 is rotatably connected to the guide rod shaft 2, and the other end of the guide rod shaft 2 is a mounting end. The guide rod body 1 of this embodiment is made of stainless steel, and the surface is polished. The surface roughness range of the guide rod body 1 is Ra0.8-1.2μm. The mounting assembly includes a mounting seat 3 and a support rod 4 and an adjustment rod 5 vertically arranged on the mounting seat 3. The mounting end of the guide rod shaft 2 is hinged to the top of the support rod 4 and the adjustment rod 5 in turn. The adjustment rod 5 is slidably arranged on the mounting seat 3. The adjustment rod 5 of this embodiment is a threaded rod. The bottom of the threaded rod passes through the mounting seat 3 and is locked by a fastener, which is a nut. The inclination angle of the guide rod body 1 is adjusted by adjusting the height of the adjustment rod 5.

[0041] Specific as Figure 5As shown, the mounting base 3 of this embodiment is made of angle steel, including a bottom plate 31 and a side plate 32. The side plate 32 is provided with mounting holes 320, which facilitates the use of bolts to fix the mounting base 3 on the required equipment. The bottom plate 31 is provided with a through strip groove 310 along its length direction. Figure 3-4 As shown, a base 41 is provided at the bottom of the support rod 4, and the base 41 is fixed to the bottom plate 31 of the mounting seat 3 by bolts, and the bottom of the adjusting rod 5 passes through the strip groove 310 and is locked by a nut; the support rod 4 of this embodiment is a U-shaped structure with an opening facing upward, and the mounting end of the guide rod shaft 2 is rotatably set at the U-shaped opening of the support rod 4 through a pin shaft 45; a top seat 51 is provided at the top of the adjusting rod 5, and the top seat 51 is a U-shaped structure with an opening facing upward, and is welded to the guide rod shaft 2 with the support rod 22, and the support rod 22 extends into the U-shaped opening of the top seat 51 and is rotatably connected to the adjusting rod 5 through the pin shaft 45.

[0042] Specific as Figure 6-7 As shown, the heat treatment machine includes a drying machine 6, a preheating machine 7, a stretching machine 8 and a cooling machine 9 connected in sequence, wherein the guide rod body 1 is tiltedly arranged at the outlets of the drying machine 6, the preheating machine 7 and the stretching machine 8, and the guide rod body 1 is called a guide rod 11. The angle between the guide rod 11 and the horizontal plane can be 20°, 25°, 30°, 35° or 40°. In this embodiment, it is preferably set to 30°. The guide rod 11 is used to adjust the position of the filament bundle 10 to ensure that the filament bundle 10 is aligned with the inlet of the next device after it comes out of the outlet of the previous device. Figure 7 As shown, the cooling machine 9 includes a cooling roller 91 and a traction roller 92, wherein the cooling roller 91 includes an active roller and a passive roller, and the guide rod body 1 is obliquely arranged between the active roller and the passive roller, so as to ensure that the yarn bundle 10 passes through the center of the roller surface of the traction roller 92 after coming out of the cooling roller 91, so as to avoid the yarn bundle 10 from running off and rubbing against the flange of the traction roller 92. The guide rod body 1 is called guide rod 2 12; the included angle between the guide rod 2 12 and the horizontal plane is 30°, 45°, 50° or 60°, and the preferred setting in this embodiment is 45°, which is conducive to ensuring that the forces on both sides of the yarn bundle 10 are consistent.

[0043] When in use, the mounting seat 3 is fixed at the outlet of the heat treatment machine by bolts, and the lateral positions of the support rod 4 and the adjustment rod 5 on the mounting seat 3 are adjusted so that the guide rod body 1 is located in the offset direction of the filament bundle 10 and contacts the filament bundle 10. Then the inclination angle of the guide rod body 1 and the horizontal plane is adjusted to determine the installation position of the guide rod body 1, so that the guide rod body 1 is used to limit and correct the travel direction of the filament bundle 10 to ensure the position of the filament bundle 10.

[0044] Due to the rolling friction between the filament bundle 10 and the guide rod body 1, the rolling friction causes little friction damage to the filament bundle 10, and the occurrence of fuzzy and parallel fibers in the filament bundle 10 is significantly reduced, thereby ensuring the quality of the filament bundle 10; at the same time, the number of clumps of fibers that cannot be dispersed in the fibers is significantly reduced, and the primary rate of fiber dispersion grade is increased from 30%-50% to more than 90%; and the inclination direction of the guide rod body 1 is the same as the offset direction of the filament bundle 10, which can not only play a guiding and limiting role for the filament bundle 10, but also avoid the problem that the edges of the sheet-like filament bundle 10 shrink, stick together, and entangle into a ball due to the large extrusion force applied by the guide rod body 1 to the filament bundle 10, thereby further improving the fiber dispersion.

[0045] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A rotary guide rod that is easy to adjust, characterized in that: The rotating guide rod includes a rotating component and a mounting component. The rotating component is tiltedly arranged on the heat treatment machine through the mounting component. The rotating component includes a guide rod body. The guide rod body is rotatably arranged at the outlet of the heat treatment machine. The inclination angle of the guide rod body to the horizontal plane is 20°-60°, and the inclination direction of the guide rod body is the same as the offset direction of the filament bundle, and the filament bundle is in rolling contact with the guide rod body.

2. The easily adjustable rotating guide rod according to claim 1, characterized in that: The rotating assembly also includes a guide rod shaft and a bearing. The guide rod body is arranged at one end of the guide rod shaft through the bearing. The guide rod body is rotatably connected to the guide rod shaft, and the other end of the guide rod shaft is a mounting end.

3. The easily adjustable rotating guide rod according to claim 2, characterized in that: The mounting assembly includes a mounting seat and a support rod and an adjustment rod vertically arranged on the mounting seat. The mounting end of the guide rod shaft is hinged to the top of the support rod and the adjustment rod in turn. The adjustment rod is slidably arranged on the mounting seat and locked by a fastener.

4. The easily adjustable rotating guide rod according to claim 3, characterized in that: The mounting base includes a bottom plate and side plates. The bottom plate is provided with a through strip groove along its length direction. The bottom of the support rod is fixedly arranged on the bottom plate. The bottom of the adjustment rod passes through the strip groove and is locked by a fastener.

5. The easily adjustable rotating guide rod according to claim 4, characterized in that: The support rod is a U-shaped structure with an opening facing upwards. The mounting end of the guide rod shaft is rotatably arranged at the U-shaped opening of the support rod through a pin shaft; the bottom of the support rod is fixed to the base plate through a fastener.

6. The easily adjustable rotating guide rod according to any one of claims 1 to 5, characterized in that: The rotating guide rod comprises a guide rod 1 and a guide rod 2. The guide rod 1 is obliquely arranged at the exit of the dryer, the preheater and the stretcher, and the guide rod 2 is obliquely arranged between the cooling roller and the traction roller of the cooler.

7. The easily adjustable rotating guide rod according to claim 6, characterized in that: The included angle between the guide rod 1 and the horizontal plane is 20°-40°.

8. The easily adjustable rotating guide rod according to claim 7, characterized in that: The included angle between the guide rod 2 and the horizontal plane is 30°-60°.

9. The easily adjustable rotating guide rod according to claim 1, characterized in that: The surface roughness of the guide rod body is Ra0.8-1.2 μm.

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