Online liquid crystal polyarylate fiber stretching treatment device

Abstract

The utility model discloses an on-line liquid crystal polyarylate fiber stretching processing device which comprises a supporting base and a fast regulation and control stretching mechanism installed on the top of the supporting base, sliding blocks are connected to the inner walls of two first sliding grooves in a sliding mode, and the output end of a hydraulic cylinder penetrates through the inner wall of the supporting base to be connected with a pushing shaft in a penetrating mode. A fixed plate is fixedly arranged on one sides of the two sliding blocks, a movable plate is slidably connected between the inner walls of the four second sliding grooves, a screw rod is connected to the top of the supporting frame in a penetrating and inserting mode, and a limiting piece is fixedly arranged at the top of the screw rod. According to the utility model, the height of the limiting piece is fixed by fixing the screw rod, so that the stretching strength of a fiber material is controlled during stretching treatment each time, the phenomenon that the qualified material is broken due to excessive force application caused by the fact that the strength cannot be controlled during stretching each time is avoided, and the problem that in actual use, the strength is not controllable is solved. Resource waste is easily caused by improper control of the tensile strength; and the tensile treatment cost is increased by using intelligent equipment to control the tensile strength.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid crystal polyarylate fiber stretching treatment, specifically to a kind of on-line liquid crystal polyarylate fiber stretching treatment device. BACKGROUND

[0002] Liquid crystal polyarylate fiber is a kind of special polymer by ester bond connection aromatic ring, generally with the characteristics of thermotropic liquid crystal. In the polyarylate melt spinning process, its high molecular chain is highly oriented, thereby giving polyarylate fiber high heat resistance, high strength, high modulus, low water absorption and other excellent properties. As a kind of high-performance fiber, polyarylate fiber has been widely used in aerospace, industrial materials and other fields, and has great military and industrial value. In the production and processing of liquid crystal polyarylate fiber, in order to ensure its tensile properties, it needs to be stretched, and a special stretching device is needed in the stretching process.

[0003] However, the existing fiber stretching device has single function in use, and can only stretch the fiber material after fixing it to both sides, so that the stretching force intensity applied to the fiber material cannot be controlled during stretching, which may cause the fiber material to be broken due to excessive force, resulting in waste of resources. If intelligent stretching force regulating element is used to record and control the stretching force, the cost of stretching treatment will be increased due to the relatively high cost of intelligent equipment. Therefore, the present design scheme proposes an on-line liquid crystal polyarylate fiber stretching treatment device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an on-line liquid crystal polyarylate fiber stretching treatment device to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides an on-line liquid crystal polyarylate fiber stretching treatment device, which comprises a supporting base and a quick control stretching mechanism installed on the top of the supporting base.

[0006] The quick control stretching mechanism comprises first sliding grooves opened on both sides of the top of the supporting base, and the inner walls of the two first sliding grooves are slidably connected with sliding blocks, and the top of the two sliding blocks is rotatably connected with a connecting rod, and the middle position of one side of the connecting rod is rotatably connected with a connecting block, and the middle position of the top of the supporting base is installed with a hydraulic cylinder, and the output end of the hydraulic cylinder is connected with a push shaft through the inner wall of the supporting base, and one end of the push shaft is fixedly connected with the top of the connecting block, and one side of the two sliding blocks is fixedly provided with a fixed plate, and one side of the two sliding blocks is provided with two second sliding grooves, and the inner walls of the four second sliding grooves are slidably connected with a movable plate.

[0007] The support base top is fixed below the connecting block and is provided with a support frame, the top of the support frame is connected with a screw rod, and the top of the screw rod is fixed with a limiting sheet.

[0008] In one example, the screw rod is threadedly connected with a fixing nut at one end of the support frame bottom, the screw rod is sleeved with a first spring at one end of the support frame top, and the two ends of the first spring are fixedly connected with the bottom of the limiting sheet and the top of the support frame respectively.

[0009] In one example, the two connecting frames are fixedly provided on one side of the top of the two sliding blocks, the inner walls of the two connecting frames are threadedly connected with fixing bolts at one end, and the two ends of the two fixing bolts are rotatably connected with the top of the two movable plates respectively.

[0010] In one example, the top of the two fixed plates and the bottom of the two movable plates are fixedly provided with anti-skid pads, and the top of the limiting sheet is fixedly provided with a buffer pad.

[0011] In one example, the two connecting shafts are fixedly provided on one side of the two sliding blocks, and the outer walls of the two connecting shafts are penetratingly connected with the inner walls of the two first sliding grooves at one end respectively.

[0012] In one example, the outer walls of the two connecting shafts are sleeved with second springs, and the two ends of the two second springs are fixedly connected with one side of the two sliding blocks and one side of the inner walls of the two first sliding grooves respectively.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: through setting the quick control stretching mechanism, when the fiber material is stretched to the qualified range during the stretching treatment of the liquid crystal polyarylate fiber, the height of the limiting sheet is fixed by fixing the screw rod, the stretching distance of the connecting rod is controlled by the extrusion and limiting of the connecting block and the limiting sheet during each stretching treatment, the sliding distance between the sliding blocks is fixed, and the fiber material stretching strength is controlled, so that the problem that the qualified material is broken due to excessive force during each stretching treatment is avoided, and the problems that the resource is wasted due to improper stretching strength control and the stretching treatment cost is increased due to the use of intelligent equipment to control the stretching strength are solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structural schematic view of the utility model;

[0015] Figure 2 It is the structural schematic view of the quick stretching mechanism of the utility model;

[0016] Figure 3 It is the overall structural schematic view of the sliding block of the utility model;

[0017] Figure 4The structure diagram of the support frame and the limiting sheet is connected.

[0018] In the figure: 1, support base; 2, quick control stretching mechanism; 201, first sliding groove; 202, sliding block; 203, connecting rod; 204, connecting block; 205, hydraulic cylinder; 206, push shaft; 207, fixed plate; 208, second sliding groove; 209, movable plate; 210, support frame; 211, screw rod; 212, limiting sheet; 213, fixed nut; 214, first spring; 215, connecting frame; 216, fixed bolt; 3, non-slip pad; 4, connecting shaft; 5, second spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-4 The utility model provides a kind of technical solutions: a kind of online liquid crystal polyarylate fiber stretching treatment device, including support base 1 and the quick control stretching mechanism 2 of installation in the top of support base 1;

[0021] The quick control stretching mechanism 2 includes the first sliding groove 201 being opened in the top of support base 1 two sides, the inner wall of two first sliding grooves 201 is slidably connected with sliding block 202, the top between two sliding blocks 202 is rotatably connected with connecting rod 203, the middle position of connecting rod 203 side is rotatably connected with connecting block 204, the middle position of the top of support base 1 is equipped with hydraulic cylinder 205, the output end of hydraulic cylinder 205 is inserted into the inner wall of support base 1 and is connected with push shaft 206, and the top of push shaft 206 is fixedly connected with connecting block 204, one side of two sliding blocks 202 is fixedly provided with fixed plate 207, one side of two sliding blocks 202 is equipped with two second sliding grooves 208, the inner wall between four second sliding grooves 208 is slidably connected with movable plate 209, and connecting block 204 is rotatably connected with connecting rod 203, so that connecting rod 203 is pressed to extend, connecting block 204 is rotated and descended, so that it keeps horizontal state, and the upper end of push shaft 206 does not produce motion interference, to ensure the stable operation of device;

[0022] The top of support base 1 is fixedly provided with support frame 210 below connecting block 204, the top of support frame 210 is inserted into screw rod 211, the top of screw rod 211 is fixedly provided with limiting sheet 212, and screw rod 211 is inserted into support frame 210, but not screw thread connection with support frame 210.

[0023] In use, the two ends of the limiting material are clamped and fixed by the fixed plate 207 and the movable plate 209 on the slider 202, and then the hydraulic cylinder 205 pushes the push shaft 206 to exert pressure on the connecting block 204, so that the connecting rod 203 is extruded and stretched, and the two ends of the connecting rod 203 move towards the two ends, so that the slider 202 slides away from the center in the first sliding groove 201, and the limiting material fixed between the sliders 202 is subjected to tension at both ends for stretching treatment. During this process, the connecting block 204 continuously descends and extrudes above the limiting sheet 212 with the stretching of the connecting rod 203, so that the first spring 214 is compressed and the screw rod 211 slides downward on the support frame 210, until the fiber material reaches the length standard of the lifting, and then the fixed nut 213 is screwed on the screw rod 211 to extrude above the inner wall of the support frame 210, so that the position of the screw rod 211 is fixed, and the position of the limiting sheet 212 is fixed, so that the connecting block 204 cannot continue to descend when it reaches the height of the contact position with the limiting sheet 212, and the connecting rod 203 cannot continue to stretch, so that the stretching force of the fiber material on the slider 202 is limited to the maximum stretching force at this time, and the fiber material can be guaranteed to be stretched qualified. The stretching treatment device can accurately control the appropriate stretching force of the liquid crystal polyarylate fiber, is not easy to cause resource waste, and does not need to use precise intelligent elements for control, thereby reducing the use cost of stretching treatment.

[0024] Further, one side of the top of each of the two sliders 202 is fixedly provided with a connecting frame 215, and the inner wall of one end of each of the two connecting frames 215 is threadedly connected with a fixed bolt 216, and one end of each of the two fixed bolts 216 is rotatably connected with the top of each of the two movable plates 209. When the fiber material is fixed, place its two ends on the fixed plate 207, and rotate the fixed bolt 216 on the connecting frame 215 to make the movable plate 209 descend and extrude and fix the fiber material together with the fixed plate 207. The fixed bolt 216 is rotatably connected with the movable plate 209, and rotating the fixed bolt 216 will extrude the movable plate 209 to slide downward along the second sliding groove 208.

[0025] Further, the top of each of the two fixed plates 207 and the bottom of each of the two movable plates 209 is fixedly provided with an anti-skid pad 3, and the top of the limiting sheet 212 is fixedly provided with a buffer pad. The anti-skid pads 3 arranged on the fixed plate 207 and the movable plate 209 increase the friction force of the fiber material and prevent it from falling off. The buffer pad arranged on the limiting sheet 212 plays a role in extruding and buffering the connecting block 204, thereby reducing wear.

[0026] Further, one side of each of the two sliders 202 is fixedly provided with a connecting shaft 4, and the outer wall of one end of each of the two connecting shafts 4 is respectively penetratingly connected with the inner wall of one side of each of the two first sliding grooves 201.

[0027] The outer wall of the two connecting shafts 4 is sleeved with a second spring 5, and the two ends of the two second springs 5 are fixedly connected with one side of the two sliding blocks 202 and one side of the inner wall of the two first sliding grooves 201 respectively. When the connecting rod 203 is stretched, the sliding block 202 slides in the first sliding groove 201, thereby stretching the second spring 5 to have a certain buffering property, so as to avoid that the stretching speed is too fast to cause the fiber material to be broken due to uneven stress. In addition, the connecting shaft 4 is inserted into the inner wall of the first sliding groove 201 on one side to ensure the stability of the sliding of the sliding block 202.

Claims

1. An online liquid crystal polyarylate fiber stretching treatment device, comprising a support base (1) and a quick control stretching mechanism (2) installed on the top of the support base (1); characterized in that The quick control stretching mechanism (2) comprises first sliding grooves (201) opened on both sides of the top of the support base (1), the inner walls of the two first sliding grooves (201) are slidably connected with sliding blocks (202), the top of the two sliding blocks (202) are rotatably connected with a connecting rod (203), the middle position of one side of the connecting rod (203) is rotatably connected with a connecting block (204), the middle position of the top of the support base (1) is provided with a hydraulic cylinder (205), the output end of the hydraulic cylinder (205) penetrates the inner wall of the support base (1) and is connected with a push shaft (206), one end of the push shaft (206) is fixedly connected with the top of the connecting block (204), one side of the two sliding blocks (202) is fixedly provided with a fixed plate (207), one side of the two sliding blocks (202) is provided with two second sliding grooves (208), and the inner walls of the four second sliding grooves (208) are slidably connected with a movable plate (209); The top of the support base (1) is fixedly provided with a support frame (210) below the connecting block (204), the top of the support frame (210) is penetratively connected with a screw rod (211), and the top of the screw rod (211) is fixedly provided with a limiting sheet (212).

2. An on-line liquid crystalline polyarylate fiber drawing treatment apparatus according to claim 1, wherein: One end of the screw rod (211) penetrating the bottom of the support frame (210) is threadedly connected with a fixed nut (213), one end of the screw rod (211) penetrating the top of the support frame (210) is sleeved with a first spring (214), and the two ends of the first spring (214) are fixedly connected with the bottom of the limiting sheet (212) and the top of the support frame (210) respectively.

3. An on-line liquid crystalline polyarylate fiber drawing treatment apparatus according to claim 1, wherein: One side of the top of the two sliding blocks (202) is fixedly provided with a connecting frame (215), the inner walls of one end of the two connecting frames (215) are threadedly connected with fixed bolts (216), and one end of the two fixed bolts (216) is rotatably connected with the top of the two movable plates (209) respectively.

4. An on-line liquid crystalline polyarylate fiber drawing treatment apparatus according to claim 1, wherein: The top of the two fixed plates (207) and the bottom of the two movable plates (209) are fixedly provided with anti-skid pads (3), and the top of the limiting sheet (212) is fixedly provided with a buffer pad.

5. An on-line liquid crystalline polyarylate fiber drawing treatment apparatus according to claim 1, wherein: One side of the two sliding blocks (202) is fixedly provided with a connecting shaft (4), and the outer walls of one end of the two connecting shafts (4) are penetratively connected with the inner walls of one side of the two first sliding grooves (201) respectively.

6. An on-line liquid crystalline polyarylate fiber drawing treatment apparatus according to claim 5, wherein: The outer walls of the two connecting shafts (4) are sleeved with second springs (5), and the two ends of the two second springs (5) are fixedly connected with one side of the two sliding blocks (202) and one side of the inner walls of the two first sliding grooves (201) respectively.

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