A tensioning mechanism for tying a wire end

Abstract

The application relates to the technical field of tensioning mechanisms for thread knotting, in particular to a tensioning mechanism matched with thread knotting, which comprises a square tube, a screw rod is inserted into the front end of the square tube, one side of the screw rod is inserted into a screw rod sleeve arranged on one side of the front end of the square tube, one end of the screw rod extends out of the outside of the screw rod, a connecting slot is arranged on the end of the screw rod extending out of the end of the screw rod sleeve, a connecting block is fixed in the connecting slot, and the outside of the connecting block is connected with a tension arm; the tensioning mechanism matched with thread knotting has the beneficial effect that when the yarn is automatically knotted, one end of the yarn is first arranged on a torsional spring arranged on a fixed pin, then a pull rod extending out of the top of a yarn fixing assembly is pulled, at this time, the outside end of the pull rod pulls the outside end of the telescopic column to draw out of the closed groove and contract into the first telescopic groove, the inside of the yarn fixing assembly is opened, and the other end of the yarn is arranged through the inside of the yarn fixing assembly.

Description

Technical Field

[0001] This invention relates to the technical field of tensioning mechanisms for knotted thread ends, specifically a tensioning mechanism for knotted thread ends. Background Technology

[0002] In the field of textile technology, yarn splicing (commonly known as "knotting") is a core link that determines whether subsequent weaving processes can proceed continuously and efficiently. The strength and consistency of the knotting are directly related to the quality grade of the finished fabric and the start-up efficiency of warping and weaving.

[0003] At present, most yarn splicing and knotting operations are done manually. However, manual knotting has many drawbacks: First, manual knotting is inefficient and has high labor costs, which cannot meet the needs of large-scale production in the modern textile industry. Second, it is difficult to maintain uniform tension control when knotting manually, which can easily cause the yarn to become loose and seriously affect the quality stability of the yarn.

[0004] Therefore, there is an urgent need for a manual automatic knotting machine that can automate the entire process of knotting yarn by simulating manual knotting actions, thereby simultaneously improving knotting efficiency and quality. Summary of the Invention

[0005] The purpose of this invention is to provide a tensioning mechanism that works in conjunction with knotting thread ends, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rectangular tube, with a lead screw inserted into the front end of the rectangular tube, one side of the lead screw being inserted into a lead screw sleeve provided on one side of the front end of the rectangular tube, one end of the lead screw extending out from the outer side of the lead screw, and a connecting slot being provided at the end of the lead screw extending out from the end of the lead screw sleeve, a connecting block being fixed in the connecting slot, and a tension arm being connected to the outer side of the connecting block.

[0007] Preferably, a drive motor is fixed to one side of the rectangular tube, and the shaft at the end of the drive motor is connected to a first bevel gear. The first bevel gear is located on one side of a lead screw, and a second bevel gear is mounted on the lead screw. The second bevel gear is fixed in position on the lead screw and is threadedly connected to the lead screw. The second bevel gear also meshes with the first bevel gear.

[0008] Preferably, the lead screw passes through the rectangular tube and is inserted into a lead screw sleeve on one side of the rectangular tube. The lead screw can rotate through the meshing of the first bevel gear and the second bevel gear, so that the second bevel gear drives the lead screw to slide in the lead screw sleeve.

[0009] Preferably, the connecting block and the lead screw both have through holes in the middle of the connecting slot. A fixing pin is inserted into the through hole that coincides with the connecting block to fix the connecting block in the connecting slot and connect the tension arm to the lead screw.

[0010] Preferably, the tension arm is provided with a yarn fixing component, and a first telescopic groove is provided on the top of one side of the yarn fixing component. A first spring is provided in the first telescopic groove, the top of the first spring is connected to the top inner wall of the first telescopic groove, and the bottom of the first telescopic groove is connected to a telescopic column. The first spring can drive the telescopic column to extend and retract in the first telescopic groove.

[0011] Preferably, the yarn fixing assembly has a closed groove directly below the telescopic column, the bottom of the telescopic column is inserted into the closed groove, and the telescopic column closes the inside of the yarn fixing assembly.

[0012] Preferably, a pull rod is connected to the inner middle of the telescopic column. The pull rod extends from the opening in the middle of the inner side of the yarn fixing assembly. Pulling the pull rod can cause the telescopic column to retract into the first telescopic groove, thereby closing the inner side of the yarn fixing assembly.

[0013] Preferably, a torsion spring is also fitted on the fixing pin, and one end of the torsion spring yarn is placed on the torsion spring. The torsion spring enables the tension arm to always apply a constant force to the yarn, so that the yarn is always kept taut.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes a tensioning mechanism for automatic yarn knotting. When automatically knotting yarn, one end of the yarn is first placed on a torsion spring fitted onto a fixing pin. Then, by pulling a lever extending from the top of the yarn fixing assembly, the lever pulls the outer end of a telescopic column out of the closed groove and retracts it into the first telescopic groove, opening the seal on the inside of the yarn fixing assembly. The other end of the yarn is then passed through the inside of the yarn fixing assembly. After releasing the lever, the first spring in the first telescopic groove springs back the telescopic column, causing the outer end of the telescopic column to re-enter the closed groove, sealing the inside of the yarn fixing assembly. The yarn is fixed in position on the tension arm to prevent it from sliding up and down and becoming loose. Once the yarn is fixed, the torsion spring fitted with the fixing pin ensures that the tension arm applies a constant force to the yarn, keeping it taut. By activating the drive motor on one side of the rectangular tube, the drive motor drives the rotating shaft to rotate the first bevel gear. The first bevel gear then meshes with the second bevel gear on the lead screw, causing the lead screw to move laterally. This moves the lead screw from one end of the lead screw sleeve, through the connecting slot, to the connecting block, and the tension arm connected to the outside of the connecting block, into the automatic knotting device for automatic knotting. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1Enlarged schematic diagram of the structure at point A in the middle; Figure 3 For the present invention Figure 1 Enlarged schematic diagram of the structure at point B; Figure 4 This is a three-dimensional structural diagram of the yarn fixing component of the present invention.

[0016] In the diagram: 1. Rectangular tube; 2. Drive motor; 3. First bevel gear; 4. Lead screw; 5. Second bevel gear; 6. Lead screw sleeve; 7. Connecting slot; 8. Connecting block; 9. Fixing pin; 10. Torsion spring; 11. Tension arm; 12. Yarn fixing assembly; 13. First telescopic groove; 14. First spring; 15. Telescopic column; 16. Enclosing groove; 17. Pull rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1 to 4 The present invention provides a technical solution: a rectangular tube 1, a lead screw 4 is inserted into the front end of the rectangular tube 1, one side of the lead screw 4 is inserted into a lead screw sleeve 6 provided on one side of the front end of the rectangular tube 1, one end of the lead screw 4 extends out from the outer opening of the lead screw 4, and a connecting slot 7 is provided at the end of the lead screw 4 that extends out from the end opening of the lead screw sleeve 6, a connecting block 8 is fixed in the connecting slot 7, and a tension arm 11 is connected to the outer side of the connecting block 8.

[0019] A drive motor 2 is fixed to one side of the rectangular tube 1. The shaft at the end of the drive motor 2 is connected to the first bevel gear 3. The first bevel gear 3 is on one side of the lead screw 4. A second bevel gear 5 is provided on the lead screw 4. The position of the second bevel gear 5 on the lead screw 4 is fixed and it is threadedly connected to the lead screw 4. The second bevel gear 5 is simultaneously engaged with the first bevel gear 3. The drive motor 2 drives the shaft to rotate the first bevel gear 3. The first bevel gear 3 begins to rotate and engage with the second bevel gear 5 provided on the lead screw 4.

[0020] The lead screw 4 passes through the rectangular tube 1 and is inserted into the lead screw sleeve 6 on one side of the rectangular tube 1. The lead screw 4 can rotate through the meshing of the first bevel gear 3 and the second bevel gear 5, so that the second bevel gear 5 drives the lead screw 4 to slide in the lead screw sleeve 6. The connecting block 8 and the lead screw 4 are both provided with through holes in the middle of the connecting slot 7. A fixing pin 9 is inserted into the through hole that coincides with the lead screw 4 and the connecting block 8, so that the connecting block 8 can be fixed in the connecting slot 7, and the tension arm 11 is connected to the lead screw 4. The lead screw 4 is driven to start to move laterally, and the lead screw 4 extends out of the connecting slot 7 from one end of the lead screw sleeve 6 and is connected to the connecting block 8, and the tension arm 11 connected to the outside of the connecting block 8 is sent into the automatic knotting device for automatic knotting.

[0021] A yarn fixing assembly 12 is provided on the tension arm 11. A first telescopic groove 13 is provided on the top of one side of the yarn fixing assembly 12. A first spring 14 is provided in the first telescopic groove 13. The top of the first spring 14 is connected to the inner top wall of the first telescopic groove 13, and the bottom of the first telescopic groove 13 is connected to a telescopic column 15. The first spring 14 can drive the telescopic column 15 to extend and retract in the first telescopic groove 13. A closing groove 16 is provided directly below the telescopic column 15 in the yarn fixing assembly 12. The bottom of the telescopic column 15 is inserted into the closing groove 16, and the telescopic column 15 closes the inside of the yarn fixing assembly 12. The first spring 14 in the first telescopic groove 13 uses its elasticity to push the telescopic column 15 back, so that the outer end of the telescopic column 15 is inserted back into the closing groove 16, closing the inside of the yarn fixing assembly 12.

[0022] A pull rod 17 is connected to the inner middle of the telescopic column 15. The pull rod 17 extends from the opening in the middle of the inner side of the yarn fixing assembly 12 in the first telescopic groove 13. Pulling the pull rod 17 can cause the telescopic column 15 to retract into the first telescopic groove 13, thereby closing the inner side of the yarn fixing assembly 12. A torsion spring 10 is also sleeved on the fixing pin 9. One end of the yarn is placed on the torsion spring 10. The torsion spring 10 can make the tension arm 11 always exert a constant force on the yarn, so that the yarn is always kept taut. The torsion spring 10 sleeved on the fixing pin 9 makes the tension arm 11 always exert a constant force on the yarn, so that the yarn is always kept taut.

[0023] In actual use, when automatically knotting the yarn, first place one end of the yarn on the torsion spring 10 fitted on the fixing pin 9. Then, by pulling the lever 17 extending from the top of the yarn fixing assembly 12, the lever 17 pulls the outer end of the telescopic column 15 out of the closed groove 16 and retracts into the first telescopic groove 13, opening the closure of the inner side of the yarn fixing assembly 12. Then, pass the other end of the yarn through the inner side of the yarn fixing assembly 12. After releasing the lever 17, the first spring 14 in the first telescopic groove 13 springs back the telescopic column 15 through its elasticity, causing the outer end of the telescopic column 15 to re-insert into the closed groove 16, closing the inner side of the yarn fixing assembly 12 and securing the yarn. The position of the tension arm 11 is fixed to prevent the yarn from sliding up and down on the tension arm 11, which would cause the yarn to loosen. After the position of the yarn on the tension arm 11 is fixed, the torsion spring 10 sleeved on the fixing pin 9 ensures that the tension arm 11 always applies a constant force to the yarn, keeping the yarn in a taut state. By starting the drive motor 2 set on one side of the rectangular tube 1, the drive motor 2 drives the rotating shaft to rotate the first bevel gear 3. The first bevel gear 3 begins to mesh with the second bevel gear 5 set on the lead screw 4, and the drive lead screw 4 begins to move laterally. The lead screw 4 extends from one end of the lead screw sleeve 6 into the connecting slot 7 and is connected to the connecting block 8. The tension arm 11 connected to the outside of the connecting block 8 is then fed into the automatic knotting device for automatic knotting.

[0024] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A tensioning mechanism for tying knots at thread ends, characterized in that: include: A rectangular tube (1) is connected to a lead screw (4) at its front end. One side of the lead screw (4) is inserted into a lead screw sleeve (6) provided on one side of the front end of the rectangular tube (1). One end of the lead screw (4) extends out from the outside of the lead screw (4). A connecting slot (7) is provided at the end of the lead screw (4) that extends out from the end of the lead screw sleeve (6). A connecting block (8) is fixed in the connecting slot (7). A tension arm (11) is connected to the outside of the connecting block (8).

2. The tensioning mechanism for tying knots at thread ends according to claim 1, characterized in that: A drive motor (2) is fixed on one side of the rectangular tube (1). The shaft at the end of the drive motor (2) is connected to the first bevel gear (3). The first bevel gear (3) is on one side of the lead screw (4). A second bevel gear (5) is provided on the lead screw (4). The position of the second bevel gear (5) on the lead screw (4) is fixed and threadedly connected to the lead screw (4). The second bevel gear (5) is simultaneously meshed with the first bevel gear (3).

3. The tensioning mechanism for tying knots at thread ends according to claim 2, characterized in that: The lead screw (4) passes through the rectangular tube (1) and is inserted into the lead screw sleeve (6) on one side of the rectangular tube (1). The lead screw (4) can rotate through the meshing of the first bevel gear (3) and the second bevel gear (5), so that the second bevel gear (5) drives the lead screw (4) to slide in the lead screw sleeve (6).

4. The tensioning mechanism for tying knots at thread ends according to claim 3, characterized in that: The connecting block (8) and the lead screw (4) are both provided with through holes in the middle of the connecting slot (7). A fixing pin (9) is inserted into the through hole that coincides with the connecting block (8) to fix the connecting block (8) in the connecting slot (7) and connect the tension arm (11) to the lead screw (4).

5. A tensioning mechanism for tying knots at thread ends according to claim 4, characterized in that: The tension arm (11) is provided with a yarn fixing component (12). A first telescopic groove (13) is provided on the top of one side of the yarn fixing component (12). A first spring (14) is provided in the first telescopic groove (13). The top of the first spring (14) is connected to the top inner wall of the first telescopic groove (13). The bottom of the first telescopic groove (13) is connected to a telescopic column (15). The first spring (14) can drive the telescopic column (15) to extend and retract in the first telescopic groove (13).

6. The tensioning mechanism for tying knots at thread ends according to claim 5, characterized in that: The yarn fixing assembly (12) has a closed groove (16) directly below the telescopic column (15), and the bottom of the telescopic column (15) is inserted into the closed groove (16), and the telescopic column (15) closes the inside of the yarn fixing assembly (12).

7. A tensioning mechanism for tying knots at thread ends according to claim 6, characterized in that: The telescopic column (15) is connected to a pull rod (17) at the middle of its inner side. The pull rod (17) extends out from the opening in the middle of the first telescopic groove (13) of the yarn fixing assembly (12). Pulling the pull rod (17) can cause the telescopic column (15) to retract into the first telescopic groove (13), thereby closing the inner side of the yarn fixing assembly (12).

8. A tensioning mechanism for tying knots at thread ends according to claim 7, characterized in that: A torsion spring (10) is simultaneously fitted on the fixing pin (9). One end of the yarn is placed on the torsion spring (10). The torsion spring (10) enables the tension arm (11) to always give the yarn a constant force, so that the yarn is always kept taut.

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