Single-strand yarn tension detection mechanism of warp knitting fabric for automobile seat base cloth

Abstract

The invention relates to the field of yarn tension detection, in particular to a single-strand yarn tension detection mechanism of a warp knitting fabric for automobile seat base cloth, which measures the tension of the single-strand yarn of the warp knitting fabric for the automobile seat base cloth through the cooperation of a tension detection unit and a yarn pressing frame, so that the accuracy of a measurement result can be ensured; the yarn clamping mechanism is matched with driving of a second synchronous plate, so that when the yarn pressing frame moves, the yarn clamping mechanism can synchronously move, the yarn is fixed and divided into two sections to be measured, the adjusting mechanisms on the two sides are matched with the yarn sensing mechanism, it is guaranteed that the yarn can be measured when the yarn is tightened, and the situation that the measurement result is affected due to the fact that the yarn is not tightened can be prevented; in this way, two tension values can be measured at a time, and after yarn measurement results of different sections are integrated, the accurate single-strand yarn tension value of the warp knitting fabric for the automobile seat bottom cloth can be obtained.

Description

Technical Field

[0001] The invention relates to the technical field of yarn tension detection, in particular to a single-strand yarn tension detection mechanism for a warp knitted fabric used for a car seat base fabric. Background Art

[0002] Yarn tension is an important indicator of yarn quality. It is generally understood as the degree of tension of the yarn after being subjected to external force. In textile engineering, yarn tension comes from work done, and the force and the object of force vary depending on the conditions and situations. When developing the base fabric of car seats, the tension of single yarns of the warp knitted fabric used for the base fabric is often tested.

[0003] Most of the current tension detection devices cannot effectively ensure that the yarn is in a taut state during detection, which will cause the tension detection to be performed when the yarn is not in a taut state, resulting in inaccurate measurement results. Moreover, only one measurement result of the tension detector can be obtained each time, so multiple tests are required to obtain the measurement result. However, the pressure rollers of most tension detectors are manually pushed, which will cause different pressures on the yarn each time, especially when some micro-displacement tension detectors are used for detection, which will cause the displacement of the load roller to be different each time, resulting in inaccurate measurement results. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a single yarn tension detection mechanism for a warp knitted fabric used for a car seat base fabric.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A single-strand yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric comprises a workbench, wherein a yarn detection unit is arranged on the upper surface of the workbench, a yarn winding unit is arranged on one side of the yarn detection unit, a yarn unwinding unit is arranged on the other side of the yarn detection unit, and an operation panel is arranged on the side of the unwinding unit away from the yarn detection unit; The yarn detection unit comprises a detection box, a first movable groove is arranged in the middle of the front surface of the detection box, a wire clamping mechanism is arranged at the first movable groove, openings are symmetrically arranged on both sides of the first movable groove, a tension detection unit and a wire pressing frame are arranged at the openings, a rotating groove is arranged on the other side of the opening away from the first movable groove, a yarn sensing mechanism is arranged at the rotating groove, a second movable groove is arranged on the other side of the rotating groove away from the opening, and a yarn limiting mechanism is symmetrically arranged at the second movable groove; The crimping frame is installed on the inner wall of the detection box, a second guide frame is movably arranged between the crimping frames on both sides, and a second pushing mechanism is arranged on one side of the second guide frame and located on the inner wall of the detection box; The wire clamping mechanism includes a wire lifting rod, and limited sliding seats are symmetrically arranged on both sides of the wire lifting rod. The limited sliding seats are installed on the front outer wall of the detection box, and the limited sliding seats are located on one side wall and vertically open with a sliding groove; A wire clamping groove is provided in the middle of the wire lifting rod, a rubber pad is symmetrically arranged on the top of the wire clamping groove, a wire clamping plug plate is arranged on the surface of the outer wall on the front side of the detection box at the wire clamping groove, limited sliders are symmetrically fixedly connected to the two sides of the top of the wire lifting rod, and the limited sliders are arranged in the sliding grooves of the limited sliding seats on both sides for vertical movement, a fixed block is fixedly connected to the top of the wire lifting rod on one side of the limited slider, and a first single-rod bearing is rotatably arranged on the other end of the fixed block away from the wire lifting rod, the first single-rod bearing is located inside the detection box, and the fixed block is located at the first movable groove and moves vertically; The crimping frame includes a second connecting plate, the first connecting plate is fixedly connected to both sides of the second connecting plate, crimping rollers are arranged on the front sides of the first connecting plate, telescopic rods are symmetrically arranged on the upper surface of the first connecting plate, an upper mounting frame is arranged on the top of the telescopic rod, the upper mounting frame is installed on the inner wall of the detection box, a spring is arranged on the outside of the telescopic rod, one end of the spring is fixedly connected to the bottom of the upper mounting frame, the other end of the spring away from the upper mounting frame is fixedly connected to the upper surface of the first connecting plate, and a third single-rod bearing is rotatably arranged on the middle part of the side wall of one side of the second connecting plate; The second guide frame includes a guide rod, which is symmetrically installed on the inner wall of the detection box from top to bottom, a synchronous plate connecting block is slidably arranged on the guide rod, and sliding holes are symmetrically opened on the synchronous plate connecting block. A second pushing mechanism is arranged on one side of the synchronous plate connecting block on the inner wall of the detection box, and a second synchronous plate is fixedly connected to one side of the synchronous plate connecting block. A second limiting groove is opened at the lower part of the second synchronous plate, and a third limiting groove is opened at the upper part of the second synchronous plate. The first single-rod bearing is movable at the third limiting groove, and the third single-rod bearing is movable at the second limiting groove; In addition, a preferred structure is that the yarn winding unit includes a bearing frame, which is vertically mounted on the upper surface of the workbench, and a winding roller is rotatably arranged on the bearing frame, and a handle is fixedly connected to one side of the winding roller; A wire clamping groove is provided on the outer wall of the wire winding roller, a wire clamping plate is installed at the wire clamping groove, and a mounting block is fixedly arranged on the side wall of the wire winding roller on the other side away from the handle.

[0006] In addition, a preferred structure is that the wire-releasing unit includes a rotating disk, which is arranged on the upper surface of the workbench, and a yarn placing rack is vertically arranged on the rotating disk, a first servo electric cylinder is arranged on a frame on one side of the rotating disk, and a wire pressing rod is vertically fixedly connected to the end of the piston rod at the output end of the first servo electric cylinder.

[0007] In addition, a preferred structure is that the tension detection unit includes a supporting base, which is symmetrically mounted on the inner wall of the detection box, and a tension detector is arranged on the upper surface of the supporting base. A load roller is arranged on the tension detector, and the load roller is located at the opening and below the wire pressing roller.

[0008] In addition, a preferred structure is that an adjustment mechanism is symmetrically arranged on the upper part of the detection box, and the yarn limiting mechanism includes a first pushing mechanism, a first guide frame, and a yarn limiting frame. The yarn limiting frame is symmetrically arranged on the inner wall of the detection box at the second movable groove, and the first pushing mechanism is installed on the inner wall of the detection box below the wire pressing frame, and a first guide frame is arranged above the first pushing mechanism.

[0009] In addition, a preferred structure is that the first pushing mechanism includes a mounting plate, the mounting plate is fixed on the inner wall of the detection box, and a cylinder is installed on the mounting plate; A limiting block is arranged on the mounting plate, the cylinder is inserted transversely at the limiting block, a limiting groove is arranged on the side wall of the cylinder, a positioning block is arranged at the end of the piston rod at the output end of the cylinder, and the first guide frame is installed at the positioning block.

[0010] In addition, a preferred structure is that the first guide frame includes a cylinder connecting plate, a mounting hole is opened at the bottom of the cylinder connecting plate, the mounting hole at the bottom of the cylinder connecting plate is installed at the positioning block, a connecting rod is transversely arranged on the top of the cylinder connecting plate, connecting blocks are fixedly connected on both sides of the connecting rod, and a first synchronization plate is fixedly connected on the top of the connecting block; The first synchronous plate is symmetrically provided with first limit grooves at the upper and lower parts, and one side of the first synchronous plate on both sides is provided with a slide rail on the inner wall of the detection box, and a sliding seat is slidably matched on the slide rail. The first synchronous plate is installed on the sliding seat, and the yarn limit frame is arranged at the first limit groove.

[0011] In addition, the preferred structure is that the yarn limiting frame includes a sliding frame, which is symmetrically installed on the inner wall of the detection box from top to bottom, and a sliding groove is vertically opened on the sliding frame, and a yarn limiting plate is slidably arranged at the sliding groove, and an upper cover plate is installed on the top of the yarn limiting plate; A limiting ring is arranged at the bottom of the yarn limiting plate, the upper limiting ring is located on one side of the lower limiting ring, and the yarn limiting plate is symmetrically provided with wire blocking rods on both sides of the limiting ring, and sliders are symmetrically fixedly connected with sliders on both sides of the upper block of the yarn limiting plate, and the sliders are arranged at the sliding groove for vertical sliding, and a second single-rod bearing is rotatably arranged on the yarn limiting plate, and the second single-rod bearing is movably arranged at the first limiting groove.

[0012] In addition, the preferred structure is that the adjustment mechanism includes a second servo electric cylinder, which is symmetrically installed on the top of the detection box, and a hooking rod is provided at the bottom end of the piston rod at the bottom output end of the second servo electric cylinder, and the hooking rod is located on one side of the yarn sensing mechanism.

[0013] In addition, a preferred structure is that the yarn sensing mechanism includes a rotating rod, which is arranged on the inner walls on both sides of the rotating groove, and a contact rod is rotatably arranged on the rotating rod, a touch sensor is arranged above the contact rod and on the front surface of the detection box, and a baffle is arranged above the contact rod and on the upper part of the inner wall of the detection box, and the contact rod is against the bottom of the baffle.

[0014] The beneficial effects of the present invention are as follows: the present invention measures the tension of a single yarn of a warp knitted fabric for a car seat base fabric through a tension detection unit in cooperation with a wire pressing frame, thereby ensuring the accuracy of the measurement result; the wire clamping mechanism is driven by the second synchronization plate so that when the wire pressing frame is active, the wire clamping mechanism can move synchronously, thereby fixing the yarn and dividing the yarn into two sections for measurement; and the adjustment mechanisms on both sides cooperate with the yarn sensing mechanism to ensure that the yarn can be measured under tension, thereby preventing the yarn from being untightened from affecting the measurement result, so that two tension values ​​can be measured at one time, and after the measurement results of yarns in different sections are integrated, an accurate single yarn tension value of the warp knitted fabric for a car seat base fabric can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the tension detection equipment; Figure 2 It is a structural schematic diagram of the pay-off unit; Figure 3 It is a structural schematic diagram of a yarn winding unit; Figure 4 It is a schematic diagram of the structure of the winding roller after it is disassembled; Figure 5 It is a structural schematic diagram of a yarn detection unit; Figure 6 Schematic diagram of the internal structure of the test box Figure 1 ; Figure 7 It is a schematic diagram of the structure of the exterior of the detection box; Figure 8 It is a schematic diagram of the structure after the first guide frame is separated from the slide rail and the slide seat; Fig. 9 is a structural schematic diagram of a first guide frame; Fig.10 is a structural schematic diagram of the first driving mechanism; Fig.11 It is the structural schematic diagram of the cylinder; Fig.12 It is a structural schematic diagram of a yarn limiting frame; Fig.13 It is a schematic diagram of the structure after the yarn limiting frame is disassembled; Fig.14 Schematic diagram of the structure of the yarn limiting plate; Fig.15is a structural schematic diagram of a yarn sensing mechanism; Fig.16 It is a structural diagram of the adjustment mechanism; Fig.17 It is a structural schematic diagram of the wire clamping mechanism; Fig.18 It is a structural schematic diagram of the wire lifting rod; Fig.19 It is a structural schematic diagram of a partial enlargement of the thread lifting rod; Fig. 20 Schematic diagram of the internal structure of the test box Figure 2 ; Fig.21 is a structural schematic diagram of a second guide frame; Fig. 22 is a structural schematic diagram of the second synchronization board; Fig.23 It is a structural schematic diagram of a tension detection unit; Fig.24 It is a structural schematic diagram of the wire crimping frame.

[0016] In the figure: 01, yarn winding unit; 011, bearing frame; 012, handle; 013, winding roller; 0131, clamping groove; 0132, clamping plate; 0133, mounting block; 02, yarn detection unit; 03, pay-off unit; 031, rotating disk; 032, yarn placement rack; 033, first servo electric cylinder; 034, wire pressing rod; 04, operation panel; 05, yarn limit mechanism; 06, tension detection unit; 061, support base; 062, tension detector; 063, negative Carrying roller; 07, adjustment mechanism; 071, second servo electric cylinder; 072, thread hook rod; 08, yarn sensing mechanism; 081, rotating rod; 082, contact rod; 083, touch sensor; 084, baffle; 09, thread clamping mechanism; 091, limit sliding seat; 092, thread lifting rod; 0921, thread clamping groove; 0922, limit sliding block; 0923, fixed block; 0924, first single rod bearing; 093, thread clamping plug plate; 1, workbench; 2, detection box; 21, opening; 22, the first a movable groove; 23, a rotating groove; 24, a second movable groove; 3, a first pushing mechanism; 31, a cylinder; 311, a limiting groove; 312, a positioning block; 32, a mounting plate; 321, a limiting block; 4, a first guide frame; 41, a cylinder connecting plate; 42, a connecting rod; 43, a connecting block; 44, a first synchronous plate; 441, a first limiting groove; 5, a yarn limiting frame; 51, a yarn limiting plate; 511, a limiting ring; 512, a thread blocking rod; 513, a slider; 514, a second single-rod bearing; 52 , sliding frame; 521, sliding groove; 53, upper cover plate; 6, wire pressing frame; 61, upper mounting frame; 62, telescopic rod; 63, spring; 64, wire pressing roller; 65, first connecting plate; 66, second connecting plate; 67, third single-rod bearing; 7, second guide frame; 71, guide rod; 72, synchronous plate connecting block; 721, sliding hole; 73, second synchronous plate; 731, second limiting groove; 732, third limiting groove; 8, second pushing mechanism; 9, slide rail; 10, sliding seat; 11, rubber pad. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-24 A single-strand yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric comprises a workbench 1, a yarn detection unit 02 is arranged on the upper surface of the workbench 1, a yarn winding unit 01 is arranged on one side of the yarn detection unit 02, a pay-off unit 03 is arranged on the other side of the yarn detection unit 02, and an operation panel 04 is arranged on the side of the pay-off unit 03 away from the yarn detection unit 02, and the operation panel 04 is used to control the equipment and view the test data.

[0019] Among them, the yarn detection unit 02 includes a detection box 2, a first movable groove 22 is arranged in the middle of the front surface of the detection box 2, a wire clamping mechanism 09 is arranged at the first movable groove 22, openings 21 are symmetrically opened on both sides of the first movable groove 22, tension detection units 06 and wire pressing frames 6 are arranged at the openings 21, a rotating groove 23 is opened on the other side of the opening 21 away from the first movable groove 22, a yarn sensing mechanism 08 is arranged at the rotating groove 23, a second movable groove 24 is arranged on the other side of the rotating groove 23 away from the opening 21, and a yarn limiting mechanism 05 is symmetrically arranged at the second movable groove 24, and the yarn limiting mechanism 05 prevents the yarn from falling.

[0020] Moreover, the wire crimping frame 6 is installed on the inner wall of the detection box 2, and a second guide frame 7 is movably arranged between the wire crimping frames 6 on both sides. A second pushing mechanism 8 is arranged on one side of the second guide frame 7 and located on the inner wall of the detection box 2. The second pushing mechanism 8 has the same structure as the first pushing mechanism 3.

[0021] In addition, the wire clamping mechanism 09 includes a wire lifting rod 092, and limited sliding seats 091 are symmetrically arranged on both sides of the wire lifting rod 092. The limited sliding seat 091 is installed on the front outer wall of the detection box 2. The limited sliding seat 091 is located on one side of the side wall and has a sliding groove vertically opened. A wire clamping groove 0921 is opened in the middle of the wire lifting rod 092, and a rubber pad 11 is symmetrically arranged on the top of the wire clamping groove 0921. A wire clamping plug 093 is arranged on the surface of the front outer wall of the detection box 2 at the wire clamping groove 0921. The two sides of the top of the wire lifting rod 092 are symmetrically fixed and connected. The limit slider 0922 is connected, and the limit slider 0922 is arranged in the sliding groove of the limit sliding seat 091 on both sides and can move vertically. The top of the thread-lifting rod 092 is located on one side of the limit slider 092 and is fixedly connected with a fixed block 0923. The other end of the fixed block 0923 away from the thread-lifting rod 092 is rotatably provided with a first single-rod bearing 0924. The first single-rod bearing 0924 is located inside the detection box 2. The fixed block 0923 is located at the first movable groove 22 and can move vertically. The first single-rod bearing 0924 is convenient for driving the thread-lifting rod 092 to move.

[0022] Moreover, the wire crimping frame 6 includes a second connecting plate 66, and the first connecting plate 65 is fixedly connected on both sides of the second connecting plate 66. A wire crimping roller 64 is arranged on the front side of the first connecting plate 65. Telescopic rods 62 are symmetrically arranged on the upper surface of the first connecting plate 65. An upper mounting frame 61 is arranged on the top of the telescopic rod 62. The upper mounting frame 61 is installed on the inner wall of the detection box 2. A spring 63 is arranged on the outside of the telescopic rod 62. One end of the spring 63 is fixedly connected to the bottom of the upper mounting frame 61, and the other end of the spring 63 away from the upper mounting frame 61 is fixedly connected to the upper surface of the first connecting plate 65. A third single-rod bearing 67 is rotatably arranged in the middle of the side wall of one side of the second connecting plate 66, and the spring 63 plays a role of auxiliary pulling.

[0023] At the same time, the second guide frame 7 includes a guide rod 71, which is symmetrically installed on the inner wall of the detection box 2 from top to bottom. A synchronous plate connecting block 72 is slidably arranged on the guide rod 71, and sliding holes 721 are symmetrically opened on the synchronous plate connecting block 72. A second pushing mechanism 8 is arranged on one side of the synchronous plate connecting block 72 on the inner wall of the detection box 2, and a second synchronous plate 73 is fixedly connected to one side of the synchronous plate connecting block 72. A second limiting groove 731 is opened at the lower part of the second synchronous plate 73, and a third limiting groove 732 is opened at the upper part of the second synchronous plate 73. The first single-rod bearing 0924 is movable at the third limiting groove 732, and the third single-rod bearing 67 is movable at the second limiting groove 731. The second limiting groove 731 facilitates the third single-rod bearing 67 to move synchronously with the displacement of the second synchronous plate 73.

[0024] In addition, the yarn winding unit 01 includes a bearing frame 011, which is vertically installed on the upper surface of the workbench 1. A winding roller 013 is rotatably arranged on the bearing frame 011, and a handle 012 is fixedly connected to one side of the winding roller 013. A wire clamping groove 0131 is opened on the outer wall of the winding roller 013, and a wire clamping plate 0132 is installed at the wire clamping groove 0131. A mounting block 0133 is fixedly arranged on the side wall of the winding roller 013 on the other side away from the handle 012, and the mounting block 0133 is used for the installation of the wire clamping plate 0132.

[0025] Moreover, the unwinding unit 03 includes a rotating disk 031, which is arranged on the upper surface of the workbench 1, and a yarn placing rack 032 is vertically arranged on the rotating disk 031. A first servo electric cylinder 033 is arranged on a frame on one side of the rotating disk 031, and a wire pressing rod 034 is vertically fixedly connected to the end of the piston rod at the output end of the first servo electric cylinder 033. The wire pressing rod 034 is convenient for pressing the yarn on the yarn winding roller placed on the yarn placing rack 032.

[0026] In addition, the tension detection unit 06 includes a support base 061, which is symmetrically installed on the inner wall of the detection box 2. A tension detector 062 is arranged on the upper surface of the support base 061. A load roller 063 is arranged on the tension detector 062. The load roller 063 is located at the opening 21 and below the pressure roller 64. The tension detector 062 and the load roller 063 are a micro-displacement type tension detector 062.

[0027] Moreover, an adjustment mechanism 07 is symmetrically arranged on the upper part of the detection box 2, and the yarn limiting mechanism 05 includes a first pushing mechanism 3, a first guide frame 4, and a yarn limiting frame 5. The yarn limiting frame 5 is symmetrically arranged on the inner wall of the detection box 2 at the second movable groove 24. The first pushing mechanism 3 is installed on the inner wall of the detection box 2 below the wire pressing frame 6. A first guide frame 4 is arranged above the first pushing mechanism 3. The first guide frame 4 is convenient for simultaneously driving the yarn limiting frames 5 on both sides to move synchronously.

[0028] In addition, the first pushing mechanism 3 includes a mounting plate 32, which is fixed on the inner wall of the detection box 2, and a cylinder 31 is installed on the mounting plate 32. A limit block 321 is arranged on the mounting plate 32, and the cylinder 31 is horizontally inserted at the limit block 321. A limit groove 311 is provided on the side wall of the cylinder 31, and a positioning block 312 is provided at the end of the piston rod at the output end of the cylinder 31. The first guide frame 4 is installed at the positioning block 312, and the positioning block 312 ensures that the first guide frame 4 is always installed vertically.

[0029] Moreover, the first guide frame 4 includes a cylinder connecting plate 41, a mounting hole is provided at the bottom of the cylinder connecting plate 41, the mounting hole at the bottom of the cylinder connecting plate 41 is installed at the positioning block 312, a connecting rod 42 is horizontally arranged on the top of the cylinder connecting plate 41, connecting blocks 43 are fixedly connected on both sides of the connecting rod 42, a first synchronization plate 44 is fixedly connected to the top of the connecting block 43, the first synchronization plate 44 is symmetrically provided with first limiting grooves 441 above and below, one side of the first synchronization plate 44 on both sides is located on the inner wall of the detection box 2 and a sliding seat 10 is slidably matched on the slide rail 9, the first synchronization plate 44 is installed on the sliding seat 10, the yarn limiting frame 5 is arranged at the first limiting groove 441, and the first synchronization plate 44 is used to drive the yarn limiting frames 5 on the upper and lower sides to approach or move away from each other at the same time.

[0030] In addition, the yarn limiting frame 5 includes a sliding frame 52, which is symmetrically installed on the inner wall of the detection box 2 from top to bottom. A sliding groove 521 is vertically opened on the sliding frame 52, and a yarn limiting plate 51 is slidably arranged at the sliding groove 521. An upper cover plate 53 is installed on the top of the yarn limiting plate 51, and a limiting ring 511 is arranged at the bottom of the yarn limiting plate 51. The upper limiting ring 511 is located on one side of the lower limiting ring 511. The yarn limiting plate 51 is located on both sides of the limiting ring 511 and the thread blocking rods 512 are symmetrically arranged. Slide blocks 513 are symmetrically fixedly connected on both sides of the upper block of the yarn limiting plate 51. The slide block 513 is arranged at the sliding groove 521 for vertical sliding. A second single-rod bearing 514 is rotatably arranged on the yarn limiting plate 51, and the second single-rod bearing 514 is arranged at the first limiting groove 441 for movement. The limiting ring 511 is convenient for limiting the movement of the yarn in it.

[0031] At the same time, the adjustment mechanism 07 includes a second servo electric cylinder 071, which is symmetrically installed on the top of the detection box 2. A thread hooking rod 072 is provided at the bottom end of the piston rod at the bottom output end of the second servo electric cylinder 071. The thread hooking rod 072 is located on one side of the yarn sensing mechanism 08, and the thread hooking rod 072 is used to hook the yarn.

[0032] Moreover, the yarn sensing mechanism 08 includes a rotating rod 081, which is arranged on the inner walls on both sides of the rotating groove 23. A contact rod 082 is rotatably arranged on the rotating rod 081. A touch sensor 083 is arranged above the contact rod 082 and on the front surface of the detection box 2. A baffle 084 is arranged above the contact rod 082 and on the upper part of the inner wall of the detection box 2. The contact rod 082 is abutted against the bottom of the baffle 084, and the baffle 084 is convenient for abutting the contact rod 082 to prevent it from tilting forward.

[0033] In this embodiment, when performing tension detection on a single strand of yarn of a warp knitted fabric used for the bottom of a car seat, the tension detection device can be used to detect the tension thereof. When starting the detection, the winding roller with the yarn wound up is first vertically placed on the yarn placement rack 032, and then the operator draws out the yarn. When the yarn is pulled out, the rotating disk 031 rotates, so that the yarn wound up on the yarn placement rack 032 can rotate while the yarn is pulled out, and the yarn is passed into the yarn detection unit 02.

[0034] First, pass the yarn through the limiting rings 511 on one side, then pass the yarn through the contact rods 082 on both sides and above the middle lifting rod 092, and finally pass through the limiting rings 511 on the other side. After the yarn is pulled out from the yarn detection unit 02, tie the yarn to the yarn winding unit 01.

[0035] The wire clamping plate 0132 is removed from the wire clamping groove 0131. At this time, the yarn is placed in the wire clamping groove 0131, and then the wire clamping plate 0132 is covered again, so that the wire clamping plate 0132 can press the yarn in the wire clamping groove 0131, and the surface of the wire clamping plate 0132 is a material including but not limited to rubber. After pressing the wire clamping plate 0132, the mounting hole on one side of the wire clamping plate 0132 cooperates with the mounting block 0133, and the wire clamping plate 0132 is installed on the winding roller 013 using the fixing parts. After the yarn is fixed, the winding roller 013 is rotated on the bearing frame 011 through the handle 012 on one side, so that the yarn can be drawn out and wound on the winding roller 013 at the same time. After winding several times, the yarn will not fall off the winding roller 013, and it can be detected by the yarn detection unit 02 at this time.

[0036] Furthermore, before the yarn winding unit 01 winds the yarn, in order to ensure that the yarn will not detach from the yarn detection unit 02, it is necessary to drive the yarn limiting mechanism 05 to ensure that the yarn is in the same straight line. The first pushing mechanism 3 pushes the first guide frame 4, and when installing the first pushing mechanism 3, the mounting plate 32 is welded to the side wall of the inner wall of the detection box 2. When installing the cylinder 31, align the limiting groove 311 of the cylinder 31 with the limiting block 321, and then insert the cylinder 31 horizontally onto the limiting block 321, and then pass the fixing component through the cylinder 31 and install it on the mounting hole of the mounting plate 32. After the cylinder 31 is installed, when installing the cylinder connecting plate 41, align the mounting hole at the bottom of the cylinder connecting plate 41 with the positioning block 312 of the cylinder 31, thereby ensuring that the cylinder connecting plate 41 is in a vertical state, and then install the cylinder connecting plate 41 on the piston rod of the cylinder 31 through the fixing component.

[0037] After the cylinder connecting plate 41 is installed, the first synchronous plates 44 can be installed and connected to the sliding seat 10 by matching the mounting holes on the first synchronous plates 44 on both sides with the fixing components.

[0038] After the yarn limiting mechanism 05 is started, the piston rod of the cylinder 31 extends to one side, thereby driving the cylinder connecting plate 41 to move to one side. At this time, the first synchronous plates 44 on both sides are displaced, and the second single-rod bearing 514 located in each first limiting groove 441 will be restricted by the first limiting groove 441 due to the displacement of the first synchronous plate 44. The upper and lower second single-rod bearings 514 on the same side will drive the slider 513 to vertically displace in the sliding groove 521 of the sliding frame 52, so that the upper and lower yarn limiting plates 51 on the same side can approach each other. After the piston rod of the cylinder 31 is fully extended, the slider 51 3 are all displaced to the maximum displacement, at which time the limit rings 511 on the upper and lower sides of the same side are located at the same axis, and the yarn is located inside the circular rings of the upper and lower limit rings 511 and cannot be separated from the overlapped limit rings 511, thereby ensuring that when the yarn winding unit 01 is winding the yarn, the section of yarn located in the yarn detection unit 02 will not fall off the detection box 2, thereby eliminating the need for manual adjustment, and the wire blocking rod 512 is placed when the wire is released to block the yarn, and the upper cover plate 53 is detachable, and the upper cover plate 53 can be removed to take out the yarn limit plate 51 in the sliding groove 521.

[0039] After selecting a section of yarn, the winding roller 013 can be stopped. At this time, the first servo electric cylinder 033 is driven to push out the piston rod. The piston rod pushes the wire pressing rod 034 to press it on one side of the yarn winding roller placed on the yarn placing rack 032. The wire pressing rod 034 can press the yarn on the winding roller, and the yarn on this side cannot be drawn out. As for the yarn on the yarn winding unit 01 on the other side, the operator controls the handle 012 so that it does not rotate and the yarn on this side cannot be drawn out, thereby limiting and fixing the two ends of the yarn section located at the yarn detection unit 02.

[0040] After selecting the yarn to be detected, the second pushing mechanism 8 is driven to push the second guide frame 7 to move. The second pushing mechanism 8 has the same structure as the first pushing mechanism 3, and is a cylinder installed on the mounting plate. The cylinder piston rod of the second pushing mechanism 8 extends to drive the synchronous plate connecting block 72 to move to one side on the guide rod 71. The guide rod 71 plays a guiding role to ensure that the synchronous plate connecting block 72 can perform linear displacement. When the synchronous plate connecting block 72 moves, the second synchronous plate 73 below moves synchronously, and the positions of the second limiting groove 731 and the third limiting groove 732 change, and the third single-rod bearing 67 located in the second limiting groove 731 and the first single-rod bearing 0924 located in the third limiting groove 732 will move with the second synchronous plate 73. Driven by the third limiting groove 732, the first single-rod bearing 0924 can drive the limiting slide block 0922 on the fixed block 0923 to move vertically upward at the limiting grooves of the limiting slide seats 091 on both sides, so that the hook at the bottom of the wire lifting rod 092 can move toward the upper wire clamping plug plate 093; Driven by the second limiting groove 731, the third single-rod bearing 67 drives the second connecting plate 66 to move downward, and the first connecting plates 65 on both sides move downward synchronously. When the first connecting plates 65 move downward, the telescopic rod 62 above is driven to move, and the telescopic rod 62 is extended, and the external spring 63 is stretched.

[0041] When the first single-rod bearing 0924 moves to the top, the bottom of the wire clamping plate 093 is located at the top of the wire clamping groove 0921, and the wire clamping plate 093 cooperates with the rubber pads 11 on both sides of the top of the wire clamping groove 0921 to clamp the yarn passing through it, so that there is a section of test yarn between the wire lifting rod 092 and the yarn winding unit 01, and another section of test yarn between the wire lifting rod 092 and the wire unwinding unit 03. In this way, the tension of the two sections of yarn can be detected at the same time, which prevents the tightness of one section of yarn from affecting the tension measurement result when it is measured. In this way, the two sections can be measured twice at one time, thereby ensuring the accuracy of the tension measurement result.

[0042] When the third single-rod bearing 67 moves to the bottom, the wire pressing rollers 64 on both sides press the yarn passing below onto the load rollers 063 of the tension detectors 062 on both sides. This is because after the yarn winding unit 01 and the unwinding unit 03 fix the yarn, the tested section of yarn is not taut but in a relatively loose state. Although the yarn can be tightened by the pulling of the lifting rod 092 and the wire pressing roller 64, it is still loose, so the adjustment mechanism 07 on both sides is controlled.

[0043] The bottom piston rod of the second servo electric cylinder 071 contracts, thereby driving the thread hooking rod 072 below to rise, thereby lifting the yarn, so that the yarn can be further tightened. During the lifting process of the thread hooking rod 072, once the yarn is tightened, the yarn will be straightened, and the straightened yarn will touch the contact rod 082, and the straightened yarn will resist the contact rod 082. At the same time, with the lifting of the thread hooking rod 072, the straightened yarn will lift the contact rod 082, so that it can rotate with the rotating rod 081. Once the top of the contact rod 082 touches the touch sensor 083, the touch sensor 08 3 At this time, when receiving the signal of being touched by an object, the second servo electric cylinder 071 will stop the rise of the hook rod 072, and the operation panel 04 will automatically receive the signal of the touch sensor 083, and then obtain the value detected at this time through the tension detectors 062 on both sides. After obtaining the two tension measurement values, each device is reset, and then different tension measurement values ​​can be obtained by measuring different sections of yarn, and then by comparing these values, more accurate values ​​can be obtained, so that the accurate tension measurement result of the single yarn of the warp knitted fabric for the car seat base cloth can be measured.

[0044] The spring 63 and the telescopic rod 62 are provided to play the role of auxiliary thrust. When the third single-rod bearing 67 is driven to rise by the second synchronous plate 73, it can assist the first connecting plates 65 on both sides to rise, thereby preventing the second connecting plates 66 from breaking when the first connecting plates 65 on both sides are driven by the middle second connecting plate 66 alone.

[0045] In the present invention, the tension detection unit 06 is set in cooperation with the wire pressing frame 6 to measure the tension of a single yarn of the warp knitted fabric for the car seat base cloth. In order to ensure the accuracy of the measurement result, the wire clamping mechanism 09 is set in cooperation with the second synchronization plate 73 so that when the wire pressing frame 6 is active, the wire clamping mechanism 09 can move synchronously, thereby fixing the yarn and dividing the yarn into two sections for measurement. The adjustment mechanisms 07 set on both sides cooperate with the yarn sensing mechanism 08 to ensure that the yarn can be measured under tension to prevent the untensioned yarn from affecting the measurement result. In this way, two tension measurement values ​​can be measured at one time, and after integrating the results measured with the yarns of different sections, an accurate single yarn tension value of the warp knitted fabric for the car seat base cloth can be obtained.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric, comprising a workbench (1), characterized in that: A yarn detection unit (02) is arranged on the upper surface of the workbench (1); a yarn winding unit (01) is arranged on one side of the yarn detection unit (02); a yarn unwinding unit (03) is arranged on the other side of the yarn detection unit (02); and an operation panel (04) is arranged on the side of the yarn unwinding unit (03) away from the yarn detection unit (02); The yarn detection unit (02) comprises a detection box (2), a first movable groove (22) is provided in the middle of the front surface of the detection box (2), a thread clamping mechanism (09) is provided at the first movable groove (22), openings (21) are symmetrically provided on both sides of the first movable groove (22), a tension detection unit (06) and a thread pressing frame (6) are provided at the openings (21), a rotating groove (23) is provided on the side of the opening (21) away from the first movable groove (22), a yarn sensing mechanism (08) is provided at the rotating groove (23), a second movable groove (24) is provided on the other side of the rotating groove (23) away from the opening (21), and a yarn limiting mechanism (05) is symmetrically provided at the second movable groove (24); The wire crimping frame (6) is mounted on the inner wall of the detection box (2), a second guide frame (7) is movably arranged between the wire crimping frames (6) on both sides, and a second pushing mechanism (8) is arranged on one side of the second guide frame (7) and located on the inner wall of the detection box (2); The wire clamping mechanism (09) comprises a wire lifting rod (092), and limit sliding seats (091) are symmetrically arranged on both sides of the wire lifting rod (092). The limit sliding seats (091) are installed on the front outer wall of the detection box (2), and the limit sliding seat (091) is located on one side wall and is vertically provided with a sliding groove; A wire clamping groove (0921) is provided in the middle of the wire lifting rod (092), a rubber pad (11) is symmetrically arranged on the top of the wire clamping groove (0921), a wire clamping plug plate (093) is arranged on the front outer wall surface of the detection box (2) at the wire clamping groove (0921), the two sides of the top of the wire lifting rod (092) are symmetrically fixedly connected to the limiting sliders (0922), the limiting sliders (0922) are arranged in the sliding grooves of the limiting sliding seats (091) on both sides and can move vertically, the top of the wire lifting rod (092) is located on one side of the limiting slider (0922) and is fixedly connected to a fixing block (0923), the other end of the fixing block (0923) away from the wire lifting rod (092) is rotatably arranged with a first single-rod bearing (0924), the first single-rod bearing (0924) is located inside the detection box (2), and the fixing block (0923) is located at the first movable groove (22) and can move vertically; The crimping frame (6) comprises a second connecting plate (66), the second connecting plate (66) is fixedly connected to the first connecting plate (65) on both sides, the front side of the first connecting plate (65) is provided with a crimping roller (64), a telescopic rod (62) is symmetrically arranged on the upper surface of the first connecting plate (65), an upper mounting frame (61) is arranged on the top of the telescopic rod (62), the upper mounting frame (61) is installed on the inner wall of the detection box (2), a spring (63) is arranged on the outside of the telescopic rod (62), one end of the spring (63) is fixedly connected to the bottom of the upper mounting frame (61), and the other end of the spring (63) away from the upper mounting frame (61) is fixedly connected to the upper surface of the first connecting plate (65), and a third single-rod bearing (67) is rotatably arranged in the middle of the side wall of one side of the second connecting plate (66); The second guide frame (7) comprises a guide rod (71), the guide rod (71) being symmetrically mounted on the inner wall of the detection box (2) from top to bottom, a synchronous plate connecting block (72) being slidably arranged on the guide rod (71), the synchronous plate connecting block (72) being symmetrically provided with sliding holes (721), a second pushing mechanism (8) being arranged on one side of the synchronous plate connecting block (72) on the inner wall of the detection box (2), a second synchronous plate (73) being fixedly connected to one side of the synchronous plate connecting block (72), a second limiting groove (731) being provided at the lower part of the second synchronous plate (73), a third limiting groove (732) being provided at the upper part of the second synchronous plate (73), a first single-rod bearing (0924) being movable at the third limiting groove (732), and a third single-rod bearing (67) being movable at the second limiting groove (731).

2. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric according to claim 1, characterized in that: The yarn winding unit (01) comprises a bearing frame (011), the bearing frame (011) being vertically mounted on the upper surface of the workbench (1), a winding roller (013) being rotatably mounted on the bearing frame (011), and a handle (012) being fixedly connected to one side of the winding roller (013); A wire clamping groove (0131) is provided on the outer wall of the wire winding roller (013), and a wire clamping plate (0132) is installed at the wire clamping groove (0131). A mounting block (0133) is fixedly provided at the side wall of the wire winding roller (013) away from the handle (012).

3. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric according to claim 1, characterized in that: The pay-off unit (03) comprises a rotating disk (031), the rotating disk (031) being arranged on the upper surface of the workbench (1), a yarn placing frame (032) being arranged vertically on the rotating disk (031), a first servo electric cylinder (033) being arranged on a frame body on one side of the rotating disk (031), and a wire pressing rod (034) being vertically fixedly connected to the end of a piston rod at the output end of the first servo electric cylinder (033).

4. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric according to claim 1, characterized in that: The tension detection unit (06) comprises a support base (061), the support base (061) being symmetrically mounted on the inner wall of the detection box (2), a tension detector (062) being arranged on the upper surface of the support base (061), a load roller (063) being arranged on the tension detector (062), and the load roller (063) being located at the opening (21) and below the pressure roller (64).

5. The single yarn tension detection mechanism of the warp knitted fabric for automobile seat base fabric according to claim 1, characterized in that: The upper part of the detection box (2) is symmetrically provided with an adjustment mechanism (07); the yarn limiting mechanism (05) comprises a first pushing mechanism (3), a first guide frame (4), and a yarn limiting frame (5); the yarn limiting frame (5) is symmetrically arranged on the inner wall of the detection box (2) at the second movable groove (24); the first pushing mechanism (3) is installed on the inner wall of the detection box (2) below the wire pressing frame (6); and the first guide frame (4) is arranged above the first pushing mechanism (3).

6. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric according to claim 5, characterized in that: The first pushing mechanism (3) comprises a mounting plate (32), the mounting plate (32) being fixed on the inner wall of the detection box (2), and a cylinder (31) being mounted on the mounting plate (32); A limit block (321) is provided on the mounting plate (32), the cylinder (31) is transversely inserted at the limit block (321), a limit groove (311) is provided on the side wall of the cylinder (31), a positioning block (312) is provided at the end of the piston rod at the output end of the cylinder (31), and the first guide frame (4) is mounted at the positioning block (312).

7. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric according to claim 5, characterized in that: The first guide frame (4) comprises a cylinder connecting plate (41), a mounting hole is formed at the bottom of the cylinder connecting plate (41), the mounting hole at the bottom of the cylinder connecting plate (41) is mounted at the positioning block (312), a connecting rod (42) is transversely arranged at the top of the cylinder connecting plate (41), both sides of the connecting rod (42) are fixedly connected to connecting blocks (43), and the top of the connecting block (43) is fixedly connected to a first synchronization plate (44); The first synchronous plate (44) is symmetrically provided with first limiting grooves (441) at the top and the bottom. One side of the first synchronous plate (44) at both sides is provided with a slide rail (9) located on the inner wall of the detection box (2). A slide seat (10) is slidably matched on the slide rail (9). The first synchronous plate (44) is mounted on the slide seat (10). The yarn limiting frame (5) is arranged at the first limiting groove (441).

8. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric according to claim 7, characterized in that: The yarn limiting frame (5) comprises a sliding frame (52), the sliding frame (52) being symmetrically mounted on the inner wall of the detection box (2) in an upper and lower manner, a sliding groove (521) being vertically opened on the sliding frame (52), a yarn limiting plate (51) being slidably arranged at each of the sliding grooves (521), and an upper cover plate (53) being mounted on the top of the yarn limiting plate (51); A limiting ring (511) is arranged at the bottom of the yarn limiting plate (51), the upper limiting ring (511) is located on one side of the lower limiting ring (511), and the yarn limiting plate (51) is symmetrically provided with thread blocking rods (512) on both sides of the limiting ring (511), and sliding blocks (513) are symmetrically fixedly connected to both sides of the upper block of the yarn limiting plate (51), and the sliding blocks (513) are arranged at the sliding groove (521) to slide vertically, and a second single-rod bearing (514) is rotatably arranged on the yarn limiting plate (51), and the second single-rod bearing (514) is movably arranged at the first limiting groove (441).

9. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric according to claim 5, characterized in that: The adjustment mechanism (07) comprises a second servo electric cylinder (071), the second servo electric cylinder (071) being symmetrically mounted on the top of the detection box (2), a thread hooking rod (072) being arranged at the bottom end of a piston rod at the bottom output end of the second servo electric cylinder (071), the thread hooking rod (072) being located on one side of the yarn sensing mechanism (08).

10. A single yarn tension detection mechanism for a warp knitted fabric for a car seat base fabric according to claim 9, characterized in that: The yarn sensing mechanism (08) comprises a rotating rod (081), the rotating rod (081) being arranged on the inner walls on both sides of the rotating groove (23), a contact rod (082) being rotatably arranged on the rotating rod (081), a touch sensor (083) being arranged above the contact rod (082) and on the front surface of the detection box (2), a baffle (084) being arranged above the contact rod (082) and on the upper part of the inner wall of the detection box (2), and the contact rod (082) being abutted against the bottom of the baffle (084).

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