An automatically adjustable yarn tensioning device for a textile machine

Abstract

The present invention relates to the field of yarn processing, and particularly to an automatically adjustable yarn tensioning device for a textile machine, which comprises a mounting base plate. Second slide rails are symmetrically arranged horizontally on the mounting base plate, and a plurality of yarn tensioning units are slidably arranged on the second slide rails in a uniformly arranged manner along the horizontal direction. A spacing synchronous adjustment unit is arranged on the upper surface of the mounting base plate on one side of the yarn tensioning units. By means of the arranged automatic adjustment unit cooperating with the tensioning plate pushing mechanism to push the yarn tensioning plate, all the yarn tensioning units can be automatically adjusted at one time to tighten the yarn, so that there is no need to manually tighten each strand of yarn, effectively improving the efficiency. And the arranged limiting mechanism ensures that when the yarn tensioning plate is re-threaded, it can quickly reset to the initial state, and cooperating with the arranged spacing synchronous adjustment unit, the threading is more convenient, effectively improving the efficiency of yarn tensioning adjustment on the textile machine.

Description

Technical Field

[0001] The present invention relates to the technical field of yarn processing, and particularly relates to an automatically adjustable yarn tensioning device for a textile machine. Background Art

[0002] Yarn is a fine product processed from textile fibers and is the basic material for textiles. It is usually woven from staple fibers, filaments or other materials, has the characteristics of being thin and soft, and has certain physical and mechanical properties.

[0003] Textile machines are used in the preparation of yarn. When the textile machine winds the yarn onto the collecting roller, in order to ensure the tension of the yarn, multiple movable tensioning wheels are often set. Through the movement of the tensioning wheels, the loose yarn is tightened, thus achieving tensioning, which is beneficial to the winding of the yarn. However, most of the current tensioning wheels are manually adjusted. When producing yarn in batches, manually adjusting a single strand of yarn has low efficiency and requires a lot of time, which is not conducive to high-efficiency production. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art, and a yarn tensioning device for a textile machine that can be automatically adjusted is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An automatically adjustable yarn tensioning device for a textile machine includes a mounting base plate. Horizontally and symmetrically arranged second slide rails are provided on the mounting base plate. A plurality of yarn tensioning units are slidably arranged on the second slide rails in a uniform horizontal arrangement. The yarn tensioning unit includes a tensioning wheel mounting frame and a yarn tensioning plate rotatably arranged on the tensioning wheel mounting frame. The bottom of the tensioning wheel mounting frame is slidably fitted on the second slide rail through a sliding component. A first sliding mechanism is connected to the bottom of the tensioning wheel mounting frame. One side of the first sliding mechanism is fixedly connected to a second sliding mechanism. The two are fixedly connected through a connecting rod and are respectively adapted to the second slide rails on both sides;

[0007] An automatic adjustment unit is provided above the mounting base plate, including a stepping motor, a rotating shaft driven by the stepping motor, and a plurality of tensioning plate pushing mechanisms evenly distributed along the rotating shaft;

[0008] The tensioning plate pushing mechanism includes a pushing mechanism mounting block installed on the rotating shaft, a pushing mechanism mounting frame fixed on the mounting block, and a first roller connected to a rotating seat through a first telescopic connecting rod. The first roller contacts the roller limiting block on the yarn tensioning plate and is used to push the yarn tensioning plate to rotate around the rotating mounting block to achieve yarn tensioning;

[0009] A limiting mechanism is provided below the yarn tensioning plate, including a second telescopic connecting rod and a second roller, which is used to provide elastic support when the yarn tensioning plate resets;

[0010] On both sides of the installation base plate, there are single-strand yarn adjusting units, including a lead screw slide rail, a sliding base, and a second servo cylinder. The second servo cylinder pushes the convex plate of the tensioning plate pushing mechanism through a piston push rod to individually adjust the tension of a single-strand yarn;

[0011] A yarn anti-separation mechanism is installed on the yarn tensioning plate, including a limit ring connecting plate and a yarn anti-separation ring, which is used to prevent the yarn from falling off the second tensioning wheel.

[0012] In addition, a preferred structure is that the first sliding mechanism includes a second slider, which is slidably matched with the second slide rail. At the top surface of the second slider, there is a first installation base. On one side wall of the first installation base, there is a connecting rod fixedly connected for connecting the second sliding mechanism. On the top column of the first installation base, there is a tensioning wheel mounting frame fixedly connected, and a single-rod bearing is arranged on the outer wall at the bottom of the first installation base;

[0013] The second sliding mechanism includes a third slider, which is slidably matched with the second slide rail. At the top surface of the third slider, there is a second installation base. One side wall of the second installation base is fixedly connected to the other end of the connecting rod far from the first installation base, and a first tensioning wheel is rotatably arranged on the top frame of the second installation base.

[0014] In addition, a preferred structure is that the spacing synchronous adjustment unit includes a first slide rail, which is longitudinally symmetrically arranged on both sides of the second slide rail. On the top of both sides of the first slide rail, there is a spacing synchronous adjustment plate slidably matched for adjusting the spacing of the yarn tensioning unit. On the upper surface of the installation base plate, on one side of the spacing synchronous adjustment plate, there are first servo cylinders symmetrically arranged. The end of the piston rod of the output end of the first servo cylinder is assembled and connected to the spacing synchronous adjustment plate;

[0015] The spacing synchronous adjustment plate is provided with a plurality of limit sliding grooves with different deflection angles. The single-rod bearing is arranged at the limit sliding groove. On both sides of the bottom of the spacing synchronous adjustment plate body, there are first sliders symmetrically arranged for slidably matching on the first slide rail.

[0016] In addition, a preferred structure is that the tensioning plate pushing mechanism mounting plate includes a first semi-circular mounting block and a connecting frame, and the first semi-circular mounting block and the connecting frame are symmetrically mounted on both sides of the pushing mechanism mounting block;

[0017] On one side of the connecting frame, there is a second semi-circular mounting block, and on the other side, there is a pushing mechanism mounting plate. The second semi-circular mounting block and the first semi-circular mounting block are buckled on both sides of the pushing mechanism mounting block, and the pushing mechanism mounting plate body is provided with a tensioning plate pushing mechanism;

[0018] The tension plate pushing mechanism includes a pushing mechanism mounting frame, which is mounted on the pushing mechanism mounting plate. At the upper surface of the bottom plate body of the pushing mechanism mounting frame, a first telescopic connecting rod is vertically arranged. The top end of the telescopic rod body of the first telescopic connecting rod is fixedly connected with a rotating seat. A convex plate is arranged on one side of the rotating seat, and a first roller is rotatably arranged on the rotating seat. The first roller is located on one side of the yarn tension plate;

[0019] A first spring is arranged outside the first telescopic connecting rod. One end of the first spring is connected to the rotating seat, and the other end is connected to the upper surface of the bottom plate body of the pushing mechanism mounting frame.

[0020] In addition, preferably, a plurality of guide ring fixing rods are fixedly connected along the transverse direction and evenly arranged at both side edges of the plate body of the mounting bottom plate. First guide rings are arranged at the top ends of the guide ring fixing rods. A single-strand yarn adjusting unit is arranged on the upper surface of the mounting bottom plate between the yarn tensioning unit and the automatic adjusting unit;

[0021] The single-strand yarn adjusting unit includes a lead screw slide rail, and a single-strand yarn adjusting mechanism is slidably matched with the lead screw slide rail. A driving motor for driving the lead screw slide rail is arranged on the frame body on one side of the lead screw slide rail on the upper surface of the mounting bottom plate;

[0022] The single-strand yarn adjusting mechanism includes a sliding base, which is slidably matched with the lead screw slide rail. A second servo cylinder is vertically installed on the upper surface of the sliding base, and a piston push rod is assembled at the top output end of the second servo cylinder. The piston push rod is used to push the convex plate.

[0023] In addition, preferably, the tension pulley mounting frame includes a support rod, the bottom of the support rod is fixed at the top end of the column body of the first mounting base, and a yarn tension plate mounting seat for mounting the yarn tension plate is arranged at the top of the support rod. A limiting frame is arranged on the support rod on one side of the yarn tension plate mounting seat;

[0024] A limiting mechanism is arranged on the plate body protruding from the side wall of the support rod towards the yarn tension plate mounting seat and below the yarn tension plate. A first connecting rod is fixedly connected to one side of the support rod away from the automatic adjusting unit, and a second connecting rod is fixedly connected to the other side of the support rod away from the first connecting rod.

[0025] In addition, preferably, a third tension pulley is rotatably arranged at the other end of the first connecting rod away from the support rod, and second guide rings are symmetrically arranged at the bottom of the other end plate body of the second connecting rod away from the support rod;

[0026] A rotating mounting block for mounting the yarn tensioning plate is rotatably provided on the yarn tensioning plate mounting seat. The limiting frame includes a limiting convex block, and the limiting convex block is located below the yarn tensioning plate.

[0027] In addition, a preferred structure is that the limiting mechanism includes a second telescopic connecting rod. One end of the second telescopic connecting rod is arranged on a plate body protruding from the side wall of the support rod. A second roller is arranged at the end of the telescopic rod of the other end of the second telescopic connecting rod, and the second roller is located below the yarn tensioning plate.

[0028] A second spring is arranged outside the second telescopic connecting rod. One end of the second spring is fixed on the plate body protruding from the side wall of the support rod, and the other end is fixedly connected to the seat body of the second roller.

[0029] In addition, a preferred structure is that an installation groove is formed in the middle of the yarn tensioning plate. A fixing block for connecting with the rotating mounting block is installed at the installation groove. Second tensioning wheels are symmetrically and rotatably arranged on the surface of the yarn tensioning plate away from the rotating mounting block. The second tensioning wheels, the first tensioning wheel, and the third tensioning wheel are all located in the same plane.

[0030] Anti-yarn detachment mechanisms are installed on one side of the yarn tensioning plate where the second tensioning wheels are located. A roller limiting block for contacting the first roller is arranged on the surface of the yarn tensioning plate facing the rotating mounting block and close to the automatic adjustment unit.

[0031] In addition, a preferred structure is that the anti-yarn detachment mechanism includes a detachment mechanism mounting frame. The detachment mechanism mounting frame is installed on the surface of the yarn tensioning plate facing the rotating mounting block. Third telescopic connecting rods are vertically and symmetrically installed at the bottom surface of the top plate body of the detachment mechanism mounting frame. Limiting ring connecting plates are fixedly connected to the ends of the telescopic rods at the bottoms of the third telescopic connecting rods on both sides.

[0032] A yarn anti-detachment ring is arranged at the bottom of the limiting ring connecting plate. The yarn anti-detachment ring is located on one side of the second tensioning wheel. A dial plate is arranged on one side of the plate body of the limiting ring connecting plate. A third spring is arranged outside the third telescopic connecting rod. One end of the third spring is connected to the top of the limiting ring connecting plate, and the other end is connected to the detachment mechanism mounting frame.

[0033] The beneficial effects of the present invention are:

[0034] 1. By means of the set automatic adjustment unit cooperating with the tension plate pushing mechanism to push the yarn tension plate, all the yarn tension units can be automatically adjusted at one time for yarn tightening. In this way, there is no need to manually tighten each strand of yarn, effectively improving the efficiency. And the set limit mechanism ensures that when the yarn tension plate is re-threaded, it can quickly reset to the initial state, and the cooperation with the set spacing synchronous adjustment unit makes the threading more convenient, effectively improving the efficiency of yarn tension adjustment on the textile machine.

[0035] 2. Moreover, the set single-strand yarn adjustment mechanism cooperating with the tension plate pushing mechanism can achieve single tensioning in the case of single-strand yarn looseness. At the same time, the set anti-yarn detachment mechanism can prevent the yarn from falling off under the second tensioning wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic structural diagram of the contraction state of the yarn tension unit;

[0037] Figure 2 It is a schematic structural diagram of the open state of the yarn tension unit;

[0038] Figure 3 It is a schematic structural diagram of the top view of the spacing synchronous adjustment unit;

[0039] Figure 4 It is a schematic structural diagram of the bottom view of the spacing synchronous adjustment unit;

[0040] Figure 5 It is a schematic structural diagram of the mounting base plate without the spacing synchronous adjustment unit;

[0041] Figure 6 It is a schematic structural diagram of a single yarn tension unit located on the second slide rail;

[0042] Figure 7 It is a schematic structural diagram of the automatic adjustment unit and the single-strand yarn adjustment unit;

[0043] Figure 8 It is a schematic structural diagram of the single-strand yarn adjustment mechanism;

[0044] Figure 9 It is a schematic structural diagram of the rotating shaft;

[0045] Figure 10 It is a schematic structural diagram of the yarn tension unit;

[0046] Figure 11 It is a schematic structural diagram of the mounting plate of the tension plate pushing mechanism;

[0047] Figure 12 It is a schematic structural diagram of the tension plate pushing mechanism;

[0048] Figure 13 Schematic structural diagram of the yarn tensioning plate in the tensioned state;

[0049] Figure 14 Schematic structural diagram of the yarn tensioning plate in the slack state;

[0050] Figure 15 Schematic structural diagram of the split yarn tensioning unit;

[0051] Figure 16 Schematic structural diagram of the split tensioning wheel mounting bracket and the first sliding mechanism;

[0052] Figure 17 Schematic structural diagram of the limiting mechanism;

[0053] Figure 18 Schematic structural diagram of the left side view of the yarn tensioning plate;

[0054] Figure 19 Schematic structural diagram of the right side view of the yarn tensioning plate;

[0055] Figure 20 Schematic structural diagram of the anti-yarn detachment mechanism.

[0056] In the figure: 01, pitch synchronous adjustment unit; 011, first servo cylinder; 012, first slide rail; 013, pitch synchronous adjustment plate; 0131, limit chute; 0132, first slider; 02, yarn tensioning unit; 03, automatic adjustment unit; 031, stepping motor; 032, rotating shaft; 0321, pushing mechanism mounting block; 033, bearing block; 04, second slide rail; 05, single-strand yarn adjustment unit; 051, screw slide rail; 052, single-strand yarn adjustment mechanism; 0521, sliding base; 0522, second servo cylinder; 0523, piston push rod; 053, drive motor; 1, mounting base plate; 11, guide ring fixing rod; 12, first guide ring; 2, first sliding mechanism; 21, second slider; 22, first mounting base; 23, connecting rod; 24, single-rod bearing; 3, second sliding mechanism; 31, third slider; 32, second mounting base; 33, first tensioning wheel; 4, yarn tensioning plate; 41, mounting groove; 42, second tensioning wheel; 43, roller limiting block; 5, tensioning plate pushing mechanism mounting plate; 51, first semi-circular mounting block; 52, connecting frame; 521, second semi-circular mounting block; 522, pushing mechanism mounting plate; 6, tensioning plate pushing mechanism; 61, pushing mechanism mounting frame; 62, first telescopic connecting rod; 63, rotating seat; 631, convex plate; 64, first roller; 65, first spring; 7, tensioning wheel mounting frame; 71, support rod; 72, first connecting rod; 721, third tensioning wheel; 73, second connecting rod; 731, second guide ring; 74, yarn tensioning plate mounting seat; 741, rotating mounting block; 75, limiting frame; 751, limiting convex block; 8, limiting mechanism; 81, second telescopic connecting rod; 82, second spring; 83, second roller; 9, anti-yarn detachment mechanism; 91, detachment mechanism mounting frame; 92, third telescopic connecting rod; 93, third spring; 94, limit ring connecting plate; 95, dialing plate; 96, yarn anti-detachment ring; 10, fixing block. Detailed implementation manners

[0057] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0058] Refer to Figure 1-20, An automatically adjustable yarn tensioning device for a textile machine, comprising a mounting base plate 1. Horizontally and symmetrically arranged on the mounting base plate 1 are second slide rails 04. A plurality of yarn tensioning units 02 are slidably arranged on the second slide rails 04 in a uniformly arranged manner along the horizontal direction. On the upper surface of the mounting base plate 1, a spacing synchronous adjustment unit 01 is arranged on one side of the yarn tensioning unit 02. Above the second slide rails 04 on the upper surface of the mounting base plate 1, an automatic adjustment unit 03 is arranged. The automatic adjustment unit 03 includes a stepping motor 031. The stepping motor 031 is installed on the frame on the upper surface of the mounting base plate 1 on one side of the second slide rail 04. The output end of the stepping motor 031 is assembled and connected with a rotating shaft 032. The other end of the rotating shaft 032 away from the stepping motor 031 is rotatably fitted in a bearing seat 033 installed on the frame on the other side of the second slide rail 04. The stepping motor 031 can deflect the rotating shaft 032 by a specific angle, so as to realize that the tensioning plate pushing mechanism 6 pushes the yarn tensioning plate 4 to rotate by different angles.

[0059] Horizontally and uniformly arranged on the shaft body of the rotating shaft 032 and symmetrically arranged up and down are a plurality of pushing mechanism mounting blocks 0321. Through holes are provided on each of the pushing mechanism mounting blocks 0321. On the two symmetrically arranged pushing mechanism mounting blocks 0321 up and down, tensioning plate pushing mechanism mounting plates 5 are installed. On each of the tensioning plate pushing mechanism mounting plates 5, a tensioning plate pushing mechanism 6 for adjusting the yarn tensioning unit 02 is installed. The yarn tensioning unit 02 includes a tensioning wheel mounting frame 7. A yarn tensioning plate 4 is rotatably arranged on the tensioning wheel mounting frame 7. The tensioning plate pushing mechanism 6 is used to adjust the yarn tensioning plate 4, and the yarn tensioning plate 4 is used to tension the yarn.

[0060] Among them, the bottom of the tensioning wheel mounting frame 7 is connected with a first sliding mechanism 2. One side of the first sliding mechanism 2 is fixedly connected with a second sliding mechanism 3. The first sliding mechanism 2 and the second sliding mechanism 3 are respectively slidably fitted on the two second slide rails 04 on both sides. The first sliding mechanism 2 includes a second slider 21. The second slider 21 is slidably fitted on the second slide rail 04. On the top surface of the second slider 21, a first mounting base 22 is installed. On one side wall of the first mounting base 22, a connecting rod 23 for connecting the second sliding mechanism 3 is fixedly connected. On the top column of the first mounting base 22, the tensioning wheel mounting frame 7 is fixedly connected. On the bottom outer wall of the first mounting base 22, a single-rod bearing 24 is arranged. The single-rod bearing 24 facilitates the movement at the spacing synchronous adjustment plate 013.

[0061] The second sliding mechanism 3 includes a third slider 31. The third slider 31 is slidably fitted on the second slide rail 04. On the top surface of the third slider 31, a second mounting base 32 is installed. One side wall of the second mounting base 32 is fixedly connected with the other end of the connecting rod 23 away from the first mounting base 22. On the top frame of the second mounting base 32, a first tensioning wheel 33 is rotatably arranged. The first tensioning wheel 33 plays a tensioning role.

[0062] Meanwhile, the pitch synchronous adjustment unit 01 includes a first slide rail 012, which is longitudinally symmetrically arranged on both sides of the second slide rail 04. A pitch synchronous adjustment plate 013 for adjusting the pitch of the yarn tensioning unit 02 is slidably fitted on the top of the first slide rails 012 on both sides. On the upper surface of the mounting base plate 1, first servo cylinders 011 are symmetrically arranged on one side of the pitch synchronous adjustment plate 013. The end of the piston rod of the output end of the first servo cylinder 011 is assembled and connected to the pitch synchronous adjustment plate 013. A plurality of limiting sliding grooves 0131 with different deflection angles are formed on the pitch synchronous adjustment plate 013. The single-rod bearing 24 is arranged at the limiting sliding groove 0131. First sliders 0132 for slidably fitting on the first slide rail 012 are symmetrically arranged at the bottom of both sides of the pitch synchronous adjustment plate 013. When the pitch synchronous adjustment plate 013 moves, the distances between all the yarn tensioning units 02 change synchronously.

[0063] Moreover, the mounting plate 5 of the tensioning plate pushing mechanism includes a first semi-circular mounting block 51 and a connecting frame 52. The first semi-circular mounting block 51 and the connecting frame 52 are symmetrically mounted on both sides of the pushing mechanism mounting block 0321. A second semi-circular mounting block 521 is arranged on one side of the connecting frame 52, and a pushing mechanism mounting plate 522 is arranged on the other side. The second semi-circular mounting block 521 and the first semi-circular mounting block 51 are buckled on both sides of the pushing mechanism mounting block 0321. A tensioning plate pushing mechanism 6 is mounted on the plate body of the pushing mechanism mounting plate 522. The second semi-circular mounting block 521 is used for mounting on the rotating shaft 032.

[0064] Among them, the tensioning plate pushing mechanism 6 includes a pushing mechanism mounting frame 61, which is mounted on the pushing mechanism mounting plate 522. A first telescopic connecting rod 62 is vertically arranged on the upper surface of the bottom plate body of the pushing mechanism mounting frame 61. The top end of the telescopic rod body of the first telescopic connecting rod 62 is fixedly connected with a rotating seat 63. A convex plate 631 is arranged on one side of the rotating seat 63. A first roller 64 is rotatably arranged on the rotating seat 63. The first roller 64 is located on one side of the yarn tensioning plate 4. A first spring 65 is arranged outside the first telescopic connecting rod 62. One end of the first spring 65 is connected to the rotating seat 63, and the other end is connected to the upper surface of the bottom plate body of the pushing mechanism mounting frame 61. The first spring 65 cooperates with the first telescopic connecting rod 62 to facilitate resetting after the telescopic movement of the rotating seat 63.

[0065] In addition, a plurality of guide ring fixing rods 11 are evenly arranged and fixedly connected along the horizontal direction at the side edges of both sides of the mounting base 1, and a first guide ring 12 is arranged at the top of each guide ring fixing rod 11. A single-strand yarn adjustment unit 05 is arranged between the yarn tensioning unit 02 and the automatic adjustment unit 03 on the upper surface of the mounting base 1. The single-strand yarn adjustment unit 05 includes a screw guide rail 051, and a single-strand yarn adjustment mechanism 052 is slidably matched on the screw guide rail 051. The upper surface of the mounting base 1 is located on one side of the screw guide rail 051. A driving motor 053 for driving the screw slide rail 051 is arranged on the body, and the single yarn adjusting mechanism 052 includes a sliding base 0521, and the sliding base 0521 is slidably fitted on the screw slide rail 051. A second servo electric cylinder 0522 is vertically installed on the upper surface of the sliding base 0521, and a piston push rod 0523 is assembled at the top output end of the second servo electric cylinder 0522. The piston push rod 0523 is used to push the convex plate 631, thereby driving the rotating seat 63 to cooperate with the first telescopic connecting rod 62 for telescopic extension.

[0066] Moreover, the tensioning wheel mounting frame 7 includes a support rod 71, the bottom of the support rod 71 is fixed to the top of the top column of the first mounting base 22, and a yarn tensioning plate mounting seat 74 for mounting the yarn tensioning plate 4 is arranged on the top of the support rod 71, and a limiting frame 75 is arranged on one side of the yarn tensioning plate mounting seat 74 on the support rod 71, and a limiting mechanism 8 is arranged on the plate body protruding from the side wall of the yarn tensioning plate mounting seat 74 of the support rod 71 and below the yarn tensioning plate 4, a first connecting rod 72 is fixedly connected to the side of the support rod 71 away from the automatic adjustment unit 03, and a second connecting rod 73 is fixedly connected to the side of the support rod 71 away from the first connecting rod 72, and the yarn tensioning plate mounting seat 74 is used to mount the yarn tensioning plate 4.

[0067] In addition, a third tensioning wheel 721 is rotatably arranged at the other end of the first connecting rod 72 away from the support rod 71, and a second guide ring 731 is symmetrically arranged at the bottom of the plate body of the other end of the second connecting rod 73 away from the support rod 71. The second guide ring 731 prevents the yarn from falling onto the automatic adjustment unit 03 below.

[0068] At the same time, a rotating mounting block 741 for mounting the yarn tensioning plate 4 is rotatably provided on the yarn tensioning plate mounting seat 74, and the limiting frame 75 includes a limiting protrusion 751, which is located below the yarn tensioning plate 4. The limiting protrusion 751 is used to resist the yarn tensioning plate 4 to prevent the yarn tensioning plate 4 from rotating counterclockwise.

[0069] Moreover, the limiting mechanism 8 includes a second telescopic connecting rod 81. One end of the second telescopic connecting rod 81 is arranged on the plate body protruding from the side wall of the support rod 71. At the end of the telescopic rod body at the other end of the second telescopic connecting rod 81, there is a second roller 83. The second roller 83 is located below the yarn tensioning plate 4. A second spring 82 is arranged outside the second telescopic connecting rod 81. One end of the second spring 82 is fixed on the plate body protruding from the side wall of the support rod 71, and the other end is fixedly connected to the seat body of the second roller 83. The second roller 83 is used to abut against and support the yarn tensioning plate 4.

[0070] In addition, an installation groove 41 is formed in the middle of the yarn tensioning plate 4. A fixing block 10 for connecting with the rotating installation block 741 is installed at the installation groove 41. Second tensioning wheels 42 are symmetrically and rotatably arranged on the surface of the yarn tensioning plate 4 away from the rotating installation block 741. The second tensioning wheels 42, the first tensioning wheel 33, and the third tensioning wheel 721 are all located in the same plane. The first tensioning wheel 33, the second tensioning wheel 42, and the third tensioning wheel 721 can play a role in tensioning the yarn.

[0071] Meanwhile, anti-yarn detachment mechanisms 9 are installed on both sides of the yarn tensioning plate 4 where the second tensioning wheels 42 are located. On the surface of the yarn tensioning plate 4 facing the rotating installation block 741 and on the side close to the automatic adjustment unit 03, there is a roller limiting block 43 for contacting the first roller 64. The roller limiting block 43 is used to contact the first roller 64.

[0072] Meanwhile, each anti-yarn detachment mechanism 9 includes a detachment mechanism mounting frame 91. The detachment mechanism mounting frame 91 is installed on the surface of the yarn tensioning plate 4 facing the rotating installation block 741. At the bottom surface of the top plate body of the detachment mechanism mounting frame 91, third telescopic connecting rods 92 are vertically and symmetrically installed. At the end of the bottom telescopic rod bodies of the two third telescopic connecting rods 92, a limit ring connecting plate 94 is fixedly connected. A yarn anti-detachment ring 96 is arranged at the bottom of the limit ring connecting plate 94. The yarn anti-detachment ring 96 is located on one side of the second tensioning wheel 42. A dial plate 95 is arranged on one side of the plate body of the limit ring connecting plate 94. A third spring 93 is arranged outside the third telescopic connecting rod 92. One end of the third spring 93 is connected to the top of the limit ring connecting plate 94, and the other end is connected to the detachment mechanism mounting frame 91. The dial plate 95 is used to lift the limit ring connecting plate 94.

[0073] In this embodiment, when the loom winds the yarn, the yarn is relatively loose. At this time, it is necessary to rely on the tension adjustment mechanism to adjust the tension of the yarn. First, pass the yarn through the tension adjustment device. At this time, the spacing synchronization plate 013 increases the spacing between the yarn tensioning units 02, so that the distance between the yarn tensioning units 02 is convenient for the operator to thread the yarn. First, pass the yarn through the first guide ring 12, and the first guide ring 12 is used to guide the yarn. Then pass the yarn above the third tensioning wheel 721, then pass it under the second tensioning wheel 42 close to the third tensioning wheel 721, then pass it above another second tensioning wheel 42, and finally pass it under the first tensioning wheel 33. Then pass it through the second guide ring 731 and finally pass it out through the first guide ring 12 on the other side. In this way, the threading work of the single-strand yarn is completed.

[0074] When threading the yarn tensioning plate 4, the anti-yarn detachment mechanism 9 can be used to prevent the yarn from detaching. First, to ensure that the yarn can be located between the yarn anti-detachment ring 96 and the threading groove of the second tensioning wheel 42, the operator moves the dial plate 95 to lift the limit ring connecting plate 94. The third telescopic connecting rod 92 and the third spring 93 contract. At this time, a gap for the yarn to pass through is left between the yarn anti-detachment ring 96 and the second tensioning wheel 42. At this time, the yarn can be placed between the yarn anti-detachment ring 96 and the threading groove of the second tensioning wheel 42, and the yarn anti-detachment ring 96 prevents the yarn from detaching from the second tensioning wheel 42.

[0075] After all the yarns are wound onto the yarn tensioning units 02, the loom starts to work. At this time, tension adjustment can be carried out. First, the yarn tensioning units 02 are brought closer to each other through the spacing synchronization unit 01, so as to ensure that all the tensioning wheels and the first guide ring 12 are in the same plane. When adjusting the spacing, the first servo cylinder 011 pushes the piston rod to contract, so that the spacing synchronization plate 013 cooperates with the first slider 0132 on the first slide rail 012. As the spacing synchronization plate 013 moves, the position of the limit chute 0131 changes, thereby driving the single-rod bearing 24 located at the limit chute 0131 to drive the lower second slider 21 to move horizontally on the second slide rail 04. And when the second slider 21 slides, the connecting rod 23 drives the third slider 31 on the other side to slide on the second slide rail 04 on the other side, so as to realize that all the yarn tensioning units 02 can approach each other simultaneously.

[0076] When the distance between the yarn tensioning units 02 is at its minimum, the yarn tensioning plates 4 are all displaced to one side of the tensioning plate pushing mechanism 6. At this time, adjustment can be carried out through the automatic adjustment unit 03. When the first servo electric cylinder 011 completes contraction, causing the distance between the yarn tensioning units 02 to be minimized, the stepping motor 031 will automatically rotate, thereby rotating the tensioning plate pushing mechanism 6 to slowly contact the yarn tensioning plate 4. As the rotating shaft 032 rotates, the first roller 64 contacts the roller limiting block 43, and as the rotating shaft 032 continues to rotate, the first roller 64 will push the yarn tensioning plate 4 to rotate counterclockwise with the rotating mounting block 741 as the axis. After the yarn tensioning plate 4 rotates counterclockwise, the limiting mechanism 8 that abuts against one side of the yarn tensioning plate 4 will contract, and the second roller 83 is squeezed by the yarn tensioning plate 4, causing the second telescopic connecting rod 81 and the second spring 82 to contract. At this time, the second tensioning wheels 42 on both sides will contact the yarn resting on their wheel grooves. As the yarn tensioning plate 4 rotates, the second tensioning wheels 42 will pull the yarn, thereby achieving the purpose of tensioning. After the operator observes that the yarn is taut, the rotation of the stepping motor 031 can be stopped.

[0077] When the yarn tensioning plate 4 is resisted by the second roller 83 and the first roller 64 on one side, it is ensured that after the yarn is tensioned, it will not loosen easily. And when there is one yarn that is not tensioned, at this time the operator can adjust it through the single-strand yarn adjustment mechanism 052. The drive motor 053 drives the sliding base 0521 on the screw rail 051 to move to the lower part of the yarn tensioning unit 02 that needs to be adjusted. At this time, the piston push rod 0523 extends, so that the piston push rod 0523 can contact the convex plate 631. The piston push rod 0523 pushes the convex plate 631, causing the rotating seat 63 to extend with the first telescopic connecting rod 62, and the first spring 65 deforms, thereby causing the first roller 64 to push the yarn tensioning plate 4 to rotate further, so as to further tension the yarn. In this way, after the yarn is tensioned, when there is a single-strand yarn that is not tensioned, and after the piston push rod 0523 contracts, the first telescopic connecting rod 62 can cooperate with the first spring 65 to release the elastic potential energy and contract, thereby resetting the first roller 64.

[0078] When the textile machine replaces the winding roller and the yarn needs to be loosened, only the stepping motor 031 needs to be rotated to the initial position. At this time, when the yarn tensioning plate 4 is no longer pushed by the tensioning plate pushing mechanism 6, the limiting mechanism 8 will reset the yarn tensioning plate 4, and the second spring 82 releases the elastic potential energy, causing the second telescopic connecting rod 81 to extend, realizing that the second roller 83 pushes the yarn tensioning plate 4 to reset to the horizontal state convenient for threading. And the limiting frame 75 is used to abut against the other side of the yarn tensioning plate 4, so that a new round of threading can be carried out.

[0079] In the present invention, the automatic adjustment unit 03 cooperates with the tension plate pushing mechanism 6 to push the yarn tension plate 4, so that all the yarn tensioning units 02 can be automatically adjusted at one time to tighten the yarn. In this way, there is no need to manually tighten each strand of yarn, effectively improving the efficiency. Moreover, the provided limit mechanism 8 ensures that when the yarn tension plate 4 is re-threaded, it can quickly reset to the initial state, and the provided spacing synchronous adjustment unit 01 makes the threading more convenient, effectively improving the efficiency of yarn tension adjustment on the textile machine.

[0080] In addition, the single-strand yarn adjustment mechanism 052 cooperates with the tension plate pushing mechanism 6 to achieve single tensioning in the case of a loose single-strand yarn.

[0081] At the same time, the provided anti-yarn detachment mechanism 9 can prevent the yarn from falling off under the second tensioning wheel 42.

[0082] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An automatically adjustable yarn tensioning device for a textile machine, comprising a mounting base plate (1), characterized in that, The second slide rails (04) are symmetrically arranged horizontally on the installation base plate (1). A plurality of yarn tensioning units (02) are slidably arranged on the second slide rails (04) in a uniformly arranged manner along the horizontal direction. The yarn tensioning unit (02) includes a tensioning wheel mounting frame (7) and a yarn tensioning plate (4) rotatably arranged on the tensioning wheel mounting frame (7). The bottom of the tensioning wheel mounting frame (7) is slidably matched with the second slide rails (04) through a sliding component. A first sliding mechanism (2) is connected and arranged at the bottom of the tensioning wheel mounting frame (7). One side of the first sliding mechanism (2) is fixedly connected with a second sliding mechanism (3). The two are fixedly connected through a connecting rod (23) and are respectively adapted to the second slide rails (04) on both sides; An automatic adjustment unit (03) is arranged above the installation base plate (1), including a stepping motor (031), a rotating shaft (032) driven by the stepping motor (031), and a plurality of tensioning plate pushing mechanisms (6) uniformly distributed along the rotating shaft (032). The tensioning plate pushing mechanisms (6) are installed on a tensioning plate pushing mechanism mounting plate (5); The tensioning plate pushing mechanism (6) includes a pushing mechanism mounting frame (61) and a first roller (64) connected to a rotating seat (63) through a first telescopic connecting rod (62). The first roller (64) contacts a roller limiting block (43) on the yarn tensioning plate (4) and is used to push the yarn tensioning plate (4) to rotate around a rotating mounting block (741) to realize yarn tensioning; A limiting mechanism (8) is arranged below the yarn tensioning plate (4), including a second telescopic connecting rod (81) and a second roller (83), and is used to provide elastic support when the yarn tensioning plate (4) resets; Single-strand yarn adjustment units (05) are arranged on both sides of the installation base plate (1), including a lead screw slide rail (051), a sliding base (0521), and a second servo cylinder (0522). The second servo cylinder (0522) pushes a convex plate (631) of the tensioning plate pushing mechanism (6) through a piston push rod (0523) to separately adjust the tension of a single-strand yarn; An anti-yarn detachment mechanism (9) is installed on the yarn tensioning plate (4), including a limit ring connecting plate (94) and a yarn anti-detachment ring (96), and is used to prevent the yarn from falling off the second tensioning wheel (42); The tensioning plate pushing mechanism mounting plate (5) includes a first semi-circular mounting block (51) and a connecting frame (52). The first semi-circular mounting block (51) and the connecting frame (52) are symmetrically installed on both sides of a pushing mechanism mounting block (0321); A second semi-circular mounting block (521) is arranged on one side of the connecting frame (52), and a tensioning plate pushing mechanism mounting plate (522) is arranged on the other side. The second semi-circular mounting block (521) and the first semi-circular mounting block (51) are buckled on both sides of the pushing mechanism mounting block (0321). The tensioning plate pushing mechanism (6) is installed on the plate body of the tensioning plate pushing mechanism mounting plate (522); The tension plate pushing mechanism (6) includes a pushing mechanism mounting frame (61). The pushing mechanism mounting frame (61) is mounted on the pushing mechanism mounting plate (522). A first telescopic connecting rod (62) is vertically provided on the upper surface of the bottom plate body of the pushing mechanism mounting frame (61). The top end of the telescopic rod body of the first telescopic connecting rod (62) is fixedly connected to a rotating seat (63). A convex plate (631) is provided on one side of the rotating seat (63). A first roller (64) is rotatably provided on the rotating seat (63). The first roller (64) is located on one side of the yarn tension plate (4). A first spring (65) is provided outside the first telescopic connecting rod (62). One end of the first spring (65) is connected to the rotating seat (63), and the other end is connected to the upper surface of the bottom plate body of the pushing mechanism mounting frame (61). A plurality of guide ring fixing rods (11) are fixedly connected in a uniform arrangement along the transverse direction on both side edges of the plate body of the mounting bottom plate (1). First guide rings (12) are provided at the top ends of the guide ring fixing rods (11). A single-strand yarn adjusting unit (05) is provided on the upper surface of the mounting bottom plate (1) between the yarn tensioning unit (02) and the automatic adjusting unit (03). The single-strand yarn adjusting unit (05) includes a lead screw slide rail (051). A single-strand yarn adjusting mechanism (052) is slidably fitted on the lead screw slide rail (051). A driving motor (053) for driving the lead screw slide rail (051) is provided on the frame body on one side of the lead screw slide rail (051) on the upper surface of the mounting bottom plate (1). The single-strand yarn adjusting mechanism (052) includes a sliding base (0521). The sliding base (0521) is slidably fitted on the lead screw slide rail (051). A second servo electric cylinder (0522) is vertically mounted on the upper surface of the sliding base (0521). A piston push rod (0523) is assembled at the top output end of the second servo electric cylinder (0522). The piston push rod (0523) is used to push the convex plate (631). The anti-yarn detachment mechanism (9) includes a detachment mechanism mounting frame (91). The detachment mechanism mounting frame (91) is mounted on the surface of the yarn tension plate (4) facing the rotation mounting block (741). Third telescopic connecting rods (92) are vertically and symmetrically mounted at the bottom end surface of the top plate body of the detachment mechanism mounting frame (91). Limiting ring connecting plates (94) are fixedly connected to the end heads of the bottom telescopic rod bodies of the two third telescopic connecting rods (92). A yarn anti-detachment ring (96) is provided at the bottom of the limiting ring connecting plate (94). The yarn anti-detachment ring (96) is located on one side of the second tensioning wheel (42). A dial plate (95) is provided on one side of the plate body of the limiting ring connecting plate (94). A third spring (93) is provided outside the third telescopic connecting rod (92). One end of the third spring (93) is connected to the top of the limiting ring connecting plate (94), and the other end is connected to the detachment mechanism mounting frame (91).

2. The automatic yarn tension adjusting device for a textile machine according to claim 1, characterized in that, The first sliding mechanism (2) includes a second slider (21), the second slider (21) is slidably fitted on the second slide rail (04), a first mounting base (22) is installed on the top surface of the second slider (21), a connecting rod (23) for connecting the second sliding mechanism (3) is fixedly connected to one side wall of the first mounting base (22), a tension pulley mounting bracket (7) is fixedly connected to the top column of the first mounting base (22), and a single-rod bearing (24) is provided on the outer wall of the bottom of the first mounting base (22); The second sliding mechanism (3) includes a third slider (31), the third slider (31) is slidably fitted on the second slide rail (04), a second mounting base (32) is installed on the top surface of the third slider (31), one side wall of the second mounting base (32) is fixedly connected to the other end of the connecting rod (23) away from the first mounting base (22), and a first tension pulley (33) is rotatably provided on the top frame of the second mounting base (32).

3. An automatically adjustable yarn tensioning device for a textile machine according to claim 1, characterized in that, The spacing synchronous adjustment unit (01) includes a first slide rail (012), the first slide rail (012) is longitudinally symmetrically arranged on both sides of the second slide rail (04), a spacing synchronous adjustment plate (013) for adjusting the spacing of the yarn tensioning unit (02) is slidably fitted on the top of both sides of the first slide rail (012), first servo cylinders (011) are symmetrically arranged on one side of the spacing synchronous adjustment plate (013) on the upper surface of the mounting base plate (1), and the end of the piston rod of the output end of the first servo cylinder (011) is assembled and connected to the spacing synchronous adjustment plate (013); A plurality of limiting sliding grooves (0131) with different deflection angles are formed on the spacing synchronous adjustment plate (013), the single-rod bearing (24) is arranged at the limiting sliding groove (0131), and first sliders (0132) for slidably fitting on the first slide rail (012) are symmetrically arranged at the bottoms of both sides of the plate body of the spacing synchronous adjustment plate (013).

4. An automatic yarn tension adjusting device for a textile machine according to claim 1, characterized in that, The tension pulley mounting bracket (7) includes a support rod (71), the bottom of the support rod (71) is fixed to the top of the top column of the first mounting base (22), a yarn tensioning plate mounting seat (74) for mounting the yarn tensioning plate (4) is arranged at the top of the support rod (71), and a limiting frame (75) is arranged on one side of the support rod (71) where the yarn tensioning plate mounting seat (74) is located; A limiting mechanism (8) is arranged on the plate body protruding from one side wall of the support rod (71) towards the yarn tensioning plate mounting seat (74) and below the yarn tensioning plate (4), a first connecting rod (72) is fixedly connected to one side of the support rod (71) away from the automatic adjustment unit (03), and a second connecting rod (73) is fixedly connected to the other side of the support rod (71) away from the first connecting rod (72).

5. The automatic yarn tension adjusting device for a textile machine according to claim 4, characterized in that, A third tension pulley (721) is rotatably arranged at the other end of the first connecting rod (72) away from the support rod (71), and second guide rings (731) are symmetrically arranged at the bottom of the other end plate body of the second connecting rod (73) away from the support rod (71); A rotating mounting block (741) for mounting the yarn tensioning plate (4) is rotatably provided on the yarn tensioning plate mounting seat (74). The limiting frame (75) includes a limiting protrusion (751), and the limiting protrusion (751) is located below the yarn tensioning plate (4).

6. The automatic yarn tension adjusting device for a textile machine according to claim 4, characterized in that, The limiting mechanism (8) includes a second telescopic connecting rod (81). One end of the second telescopic connecting rod (81) is provided on a plate body protruding from the side wall of the support rod (71). A second roller (83) is provided at the end of the telescopic rod body at the other end of the second telescopic connecting rod (81), and the second roller (83) is located below the yarn tensioning plate (4); A second spring (82) is provided outside the second telescopic connecting rod (81). One end of the second spring (82) is fixed on the plate body protruding from the side wall of the support rod (71), and the other end is fixedly connected to the seat body of the second roller (83).

7. The automatic yarn tension adjusting device for a textile machine according to claim 6, characterized in that, An installation groove (41) is formed in the middle of the yarn tensioning plate (4). A fixing block (10) for connecting with the rotating mounting block (741) is installed at the installation groove (41). Second tensioning wheels (42) are symmetrically and rotatably provided on the surface of the yarn tensioning plate (4) away from the rotating mounting block (741). The second tensioning wheels (42), the first tensioning wheel (33), and the third tensioning wheel (721) are all located in the same plane; Anti-yarn detachment mechanisms (9) are installed on one side of the yarn tensioning plate (4) where the second tensioning wheels (42) are located. A roller limiting block (43) for contacting the first roller (64) is provided on the surface of the yarn tensioning plate (4) facing the rotating mounting block (741) and close to the automatic adjustment unit (03).

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