Circular loom shuttle variable pitch brake mechanism, shuttle mechanism and circular loom

Abstract

The present invention discloses a shuttle pitch-variable brake mechanism for a circular loom, a shuttle mechanism and a circular loom. The brake mechanism includes: a brake plate, a brake adjustment plate, and a brake spring steel wire. The brake adjustment plate is arranged on one side of the brake plate, and the other side of the brake plate abuts against a wire roll and can move radially relative to the wire roll, and the wire roll is installed on a bobbin; the side of the brake adjustment plate close to the brake plate is an arc surface, and the brake spring steel wire is arranged between the arc surface side of the brake adjustment plate and the brake plate, and the upper end of the brake spring steel wire is pressed on the brake plate, and the lower end forms a fulcrum on the arc surface. The present invention adopts a shuttle pitch-variable brake mechanism, and the brake spring steel wire cooperates with the arc surface of the brake adjustment plate. When the pressure of the force point is greater, its fulcrum also moves upward, and the force arm will be shorter and harder, and the braking pressure will be greater. In this way, the problem that the circumferential diameter of the fabric is tightened and changed due to the pulling force circling backward can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of looms, and in particular to a circular loom shuttle variable-pitch brake mechanism, a shuttle mechanism and a circular loom. Background Art

[0002] The circular loom for plastic woven bags is equipped with a shuttle brake mechanism. The weft is wound in a circle. When the weft in the shuttle is used up, the sensor will slow down the main machine and stop the machine, and then replace the new weft manually. The tension of the weft on the shuttle will affect the change of the cylinder diameter of the entire woven bag.

[0003] like Figure 1 As shown, in the existing shuttle brake mechanism, the diameter of the newly installed weft wire coil is large and the tension is light, so the diameter of the woven cylindrical shape is relatively large. As the weft is consumed, the diameter of the weft wire coil gradually decreases, and the corresponding wire tension gradually increases, resulting in a smaller diameter of the woven cylindrical shape.

[0004] This is because the existing shuttle brake mechanism is a spring that directly pulls the brake plate to suppress the wire coil to limit the overwinding caused by inertia, thereby slackening the wire.

[0005] Therefore, the existing shuttle brake mechanism cannot change the braking force path as the yarn roll increases or decreases, resulting in a light tension on the new yarn roll, and a heavier tension after the yarn roll consumption decreases (the wire output speed does not decrease, and the bobbin speed is fast), causing the circumference of the woven cylindrical shape (known as the folded diameter in the industry) to decrease. The existing shuttle brake mechanism has a small pressure change and cannot solve the diameter change of the fabric, which affects the quality of the fabric product. Summary of the invention

[0006] The main purpose of the present invention is to provide a circular loom shuttle variable pitch brake mechanism, a shuttle mechanism and a circular loom, so as to improve the problem of folding diameter (circumference) change of the woven fabric commonly existing in plastic flat wire circular looms.

[0007] To achieve the above-mentioned object, the present invention proposes a variable pitch brake mechanism for a circular loom shuttle, comprising: a brake plate, a brake adjustment plate, and a brake spring steel wire, wherein the brake adjustment plate is arranged on one side of the brake plate, and the other side of the brake plate abuts against a wire coil and can move radially relative to the wire coil, and the wire coil is installed on a bobbin; wherein:

[0008] The side of the brake adjustment plate close to the brake plate is an arc surface, and the brake spring steel wire is arranged between the arc surface side of the brake adjustment plate and the brake plate. The upper end of the brake spring steel wire is pressed by the brake plate, and the lower end forms a fulcrum on the arc surface. When the pressure on the upper end force point is greater, the fulcrum moves upward on the arc surface, the shorter the force arm is, and the greater the braking pressure is.

[0009] Wherein, the brake adjustment sheet is fixed on the shuttle mechanism by means of fixing screws.

[0010] Wherein, an adjusting screw is provided on a side of the brake adjusting plate away from the arc surface.

[0011] Wherein, the weft thread on the silk roll is led out from the thread outlet rod of the shuttle mechanism to the weft thread pressing point.

[0012] The present invention further proposes a flying shuttle mechanism, comprising: a shuttle wheel assembly, a spool, a silk reel arranged on the spool, and a braking mechanism cooperating with the shuttle wheel assembly, wherein the braking mechanism is the braking mechanism described above.

[0013] Wherein, the shuttle wheel assembly comprises: a shuttle wheel and a thread outlet rod, and the end of the thread outlet rod leads the weft thread to the weft pressing point.

[0014] The present invention also provides a circular loom, comprising: a flying shuttle mechanism, a shuttle push arm assembly, a weft pressing wheel assembly, a size ring, and a propulsion disk, wherein:

[0015] The propulsion disk is coaxially arranged with the size ring and can rotate relative to the size ring;

[0016] The shuttle mechanism is the shuttle mechanism described above;

[0017] The shuttle push arm assembly is fixed on the propulsion disc;

[0018] The weft pressing wheel assembly is fixed on the propulsion disk and cooperates with the size ring to clamp the weft thread.

[0019] Wherein, the weft pressing wheel assembly comprises: a rubber wheel, a rubber wheel seat, and a bracket. The rubber wheel is connected to the rubber wheel seat through a bearing assembly. The rubber wheel seat is sleeved at one end of the bracket, and the other end of the bracket is fixed to the propulsion disc.

[0020] Wherein, the bracket is L-shaped, and one end of the bracket sleeved with the rubber wheel seat is provided with a spring, and a weft pressing point is formed between the spring and the bracket.

[0021] Wherein, the bearing assembly comprises: a pair of bearings, each bearing is provided with a bearing retaining spring outside, and the rubber wheel seat is connected to the rubber wheel through the bearing assembly and then fixed by a fixing nut.

[0022] The technical solution of the present invention proposes a circular loom shuttle variable pitch brake mechanism, a shuttle mechanism and a circular loom, the brake mechanism includes: a brake plate, a brake adjustment plate, and a brake spring steel wire, the brake adjustment plate is arranged on one side of the brake plate, the other side of the brake plate is in contact with the wire roll, and can move radially relative to the wire roll, and the wire roll is installed on the bobbin; the side of the brake adjustment plate close to the brake plate is an arc surface, the brake spring steel wire is arranged between the arc surface side of the brake adjustment plate and the brake plate, the upper end of the brake spring steel wire is pressed by the brake plate, and the lower end forms a fulcrum on the arc surface, when the pressure of the upper end force point is greater, the fulcrum moves upward on the arc surface, the shorter the force arm, the greater the brake pressure. Compared with the brake mechanism of the prior art, after the diameter of the wire roll becomes smaller, the bobbin speed is fast, the tension of the weft line becomes heavier, resulting in a smaller diameter of the woven fabric, affecting the quality of the fabric product. The present invention adopts a shuttle variable pitch brake mechanism, through the cooperation of the brake spring steel wire and the arc surface of the brake adjustment plate, when the pressure of the force point is greater, the fulcrum will also move upward, the force arm will be shorter and harder, and the braking pressure will be greater. In this way, the problem of the tension force circling backwards causing the fabric to be tightened and the circumference diameter to change can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of an existing shuttle brake mechanism;

[0025] Figure 2 It is a schematic diagram of the structure of the shuttle mechanism of the circular loom where the shuttle pitch-variable brake mechanism is located;

[0026] Figure 3 It is a structural schematic diagram of the variable pitch brake mechanism of the shuttle of the circular loom of the present invention;

[0027] Figure 4 It is a schematic diagram of the shuttle mechanism structure where the variable pitch brake mechanism of the circular loom of the present invention is located from another angle;

[0028] Figure 5 It is a schematic diagram of the assembly of the shuttle push arm assembly, the weft pressing wheel assembly, the size ring and the propulsion disk in the circular loom of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the circular loom of the present invention;

[0030] Figure 7It is a schematic diagram of the structural decomposition of the weft pressing wheel assembly in the circular loom of the present invention.

[0031] Figure Number:

[0032] 1. Shuttle mechanism; 2. Shuttle push arm assembly; 3. Weft pressure wheel assembly; 4. Sizing ring; 5. Propelling disc; 6. Shuttle wheel; 7. Thread outlet rod; 8. Brake plate; 9. Brake adjustment plate; 10. Brake spring wire; 11. Wire roll; 12. Thread spool; 13. Arc surface; 14. Adjustment screw; 15. Weft line path; 16. Weft pressure line pressure point; 17. Folding porcelain eye; 18. Fixing screw; 19. Rubber wheel; 20. Rubber wheel seat; 21. Bracket; 22. Spring; 23. Bearing; 24. Bearing retaining ring; 25. Fixing nut; 26. Force-bearing end.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the present invention proposes a variable pitch brake mechanism for a circular loom shuttle, comprising: a brake plate 8, a brake adjustment plate 9, and a brake spring steel wire 10, wherein the brake adjustment plate 9 is arranged on one side of the brake plate 8, and the other side of the brake plate 8 abuts against a wire coil 11 and can move radially relative to the wire coil 11, and the wire coil 11 is installed on a bobbin 12; wherein:

[0036] The side of the brake adjustment plate 9 close to the brake plate 8 is an arc surface 13, and the brake spring steel wire 10 is arranged between the arc surface 13 side of the brake adjustment plate 9 and the brake plate 8. The upper end of the brake spring steel wire 10 serves as the force-bearing end 26, which is pressed by the brake plate 8, and the lower end forms a fulcrum on the arc surface 13. When the pressure on the upper end force point is greater, the fulcrum moves upward on the arc surface 13, the shorter the force arm is, and the greater the braking pressure is.

[0037] The brake adjustment plate 9 is fixed to the shuttle mechanism 1 of the circular loom by means of a fixing screw 18 .

[0038] Wherein, an adjusting screw 14 is provided on a side of the brake adjusting piece 9 away from the arc surface 13 .

[0039] The weft on the silk roll 11 passes through the return porcelain eye 17 of the shuttle mechanism 1 and is led out from the outlet rod 7 to the weft pressing point 16. The weft path 15 is as follows: Figure 2 and Figure 6 shown.

[0040] Compared with the brake mechanism of the prior art, after the diameter of the wire roll 11 becomes smaller, the rotation speed of the spool 12 becomes faster, and the tension of the weft line becomes heavier, resulting in a smaller diameter of the woven fabric, affecting the quality of the fabric product. The present invention adopts a shuttle variable-pitch brake mechanism, through the cooperation of the brake spring steel wire 10 and the arc surface 13 of the brake adjustment plate 9. When the pressure of the force point is greater, its fulcrum will also move upward, the force arm will be shorter and harder, and the braking pressure will be greater. In this way, the problem of the change of the circumferential diameter of the fabric caused by the tension circling backward can be solved.

[0041] In addition, if Figure 2 , Figure 3 , Figure 4 ,and Figure 6 As shown, the present invention further proposes a flying shuttle mechanism 1, comprising: a shuttle wheel assembly, a spool 12, a silk roll 11 arranged on the spool 12, and a braking mechanism cooperating with the shuttle wheel assembly, wherein the braking mechanism is the braking mechanism described in the above embodiment.

[0042] The shuttle wheel assembly comprises: a shuttle wheel 6 and a thread outlet rod 7, and the end of the thread outlet rod 7 leads the weft thread to the weft pressing point 16.

[0043] Compared with the braking mechanism of the prior art, after the diameter of the wire roll 11 becomes smaller, the rotation speed of the spool 12 becomes faster, and the tension of the weft line becomes heavier, resulting in a smaller diameter of the woven fabric, affecting the quality of the fabric product. The shuttle mechanism 1 of the present invention adopts a shuttle variable-pitch braking mechanism, through the cooperation of the brake spring steel wire 10 and the arc surface 13 of the brake adjustment plate 9. When the pressure of the force point is greater, its fulcrum will also move upward, the force arm will be shorter and harder, and the braking pressure will be greater. In this way, the problem of the change of the circumferential diameter of the fabric caused by the tension circling backward can be solved.

[0044] In addition, if Figure 2-Figure 7 As shown, the present invention also proposes a circular loom, comprising: a shuttle mechanism 1, a shuttle push arm assembly 2, a weft pressing wheel assembly 3, a size ring 4, and a propulsion disk 5, wherein:

[0045] The propulsion disk 5 is coaxially arranged with the size ring 4 and can rotate relative to the size ring 4;

[0046] The shuttle mechanism 1 may be the shuttle mechanism 1 described in the above embodiment;

[0047] The shuttle push arm assembly 2 is fixed on the propulsion disk 5;

[0048] The weft pressing wheel assembly 3 is fixed on the propulsion disk 5 and cooperates with the size ring 4 to clamp the weft thread.

[0049] The weft pressing wheel assembly 3 includes: a rubber wheel 19, a rubber wheel seat 20, and a bracket 21. The rubber wheel 19 is connected to the rubber wheel seat 20 through a bearing assembly. The rubber wheel seat 20 is sleeved on one end of the bracket 21, and the other end of the bracket 21 is fixed to the propulsion disc 5.

[0050] The bracket 21 is L-shaped, and one end of the bracket 21 sleeved with the rubber wheel seat 20 is provided with a spring 22 , and a weft pressing point 16 is formed between the spring 22 and the bracket 21 .

[0051] Among them, Figure 7 As shown, the bearing assembly includes: a pair of bearings 23, each bearing 23 is provided with a bearing retaining ring 24 outside, and the rubber wheel seat 20 is connected to the rubber wheel 19 through the bearing assembly and fixed by a fixing nut 25.

[0052] Combination Figure 2 and Figure 6 As shown, by setting the weft pressing point 16, the rubber wheel 19 and the size ring 4 intersect to clamp the weft, and as the shuttle moves forward, the weft is clamped and pulled out by the rubber wheel 19 (at this time, except for the size ring 4 which is fixed, all other structures move forward clockwise). In this way, the problem of the tension force circling backwards and causing the circumference diameter of the fabric to change can be solved.

[0053] The technical solution of the present invention proposes a circular loom shuttle variable pitch brake mechanism, a shuttle mechanism 1 and a circular loom, the brake mechanism comprising: a brake plate 8, a brake adjustment plate 9, and a brake spring steel wire 10, the brake adjustment plate 9 is arranged on one side of the brake plate 8, the other side of the brake plate 8 is in contact with a wire roll 11, and can move radially relative to the wire roll 11, and the wire roll 11 is installed on a bobbin 12; the side of the brake adjustment plate 9 close to the brake plate 8 is an arc surface 13, the brake spring steel wire 10 is arranged between the arc surface 13 side of the brake adjustment plate 9 and the brake plate 8, the upper end of the brake spring steel wire 10 is pressed by the brake plate 8, and the lower end forms a fulcrum on the arc surface 13, when the pressure of the upper end force point is greater, the fulcrum moves upward on the arc surface 13, the shorter the force arm is, the greater the braking pressure is. Compared with the brake mechanism of the prior art, after the diameter of the wire roll 11 becomes smaller, the rotation speed of the spool 12 becomes faster, and the tension of the weft line becomes heavier, resulting in a smaller diameter of the woven fabric, affecting the quality of the fabric product. The present invention adopts a shuttle variable-pitch brake mechanism, through the cooperation of the brake spring steel wire 10 and the arc surface 13 of the brake adjustment plate 9. When the pressure of the force point is greater, its fulcrum will also move upward, the force arm will be shorter and harder, and the braking pressure will be greater. In this way, the problem of the change of the circumferential diameter of the fabric caused by the tension circling backward can be solved.

[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A variable pitch brake mechanism for a circular loom shuttle, characterized in that: include: A brake plate, a brake adjustment plate, and a brake spring steel wire, wherein the brake adjustment plate is arranged on one side of the brake plate, and the other side of the brake plate abuts against the wire coil and can move radially relative to the wire coil, and the wire coil is installed on the bobbin; wherein: The side of the brake adjustment plate close to the brake plate is an arc surface, and the brake spring steel wire is arranged between the arc surface side of the brake adjustment plate and the brake plate. The upper end of the brake spring steel wire is pressed by the brake plate, and the lower end forms a fulcrum on the arc surface. When the pressure on the upper end force point is greater, the fulcrum moves upward on the arc surface, the shorter the force arm is, and the greater the braking pressure is.

2. The variable pitch brake mechanism of the shuttle of a circular loom according to claim 1, characterized in that: The brake adjustment sheet is fixed on the shuttle mechanism by means of fixing screws.

3. The variable pitch brake mechanism of the shuttle of a circular loom according to claim 2, characterized in that: An adjusting screw is arranged on one side of the brake adjusting plate away from the arc surface.

4. The variable pitch brake mechanism of the shuttle of a circular loom according to claim 2, characterized in that: The weft thread on the silk roll is led out from the thread outlet rod of the shuttle mechanism to the weft thread pressing point.

5. A shuttle mechanism, characterized in that: include: A shuttle wheel assembly, a spool, a silk coil arranged on the spool, and a braking mechanism cooperating with the shuttle wheel assembly, wherein the braking mechanism is the braking mechanism according to any one of claims 1-4.

6. The shuttle mechanism according to claim 5, characterized in that: The shuttle wheel assembly comprises: a shuttle wheel and a thread outlet rod, and the end of the thread outlet rod leads the weft thread to the weft pressing point.

7. A circular loom, characterized in that: include: Shuttle mechanism, shuttle push arm assembly, weft pressing wheel assembly, size ring, propulsion disc, including: The propulsion disk is coaxially arranged with the size ring and can rotate relative to the size ring; The shuttle mechanism is the shuttle mechanism described in any one of claims 5-6; The shuttle push arm assembly is fixed on the propulsion disc; The weft pressing wheel assembly is fixed on the propulsion disk and cooperates with the size ring to clamp the weft thread.

8. The circular loom according to claim 7, characterized in that The weft pressing wheel assembly comprises: a rubber wheel, a rubber wheel seat, and a bracket. The rubber wheel is connected to the rubber wheel seat through a bearing assembly. The rubber wheel seat is sleeved on one end of the bracket, and the other end of the bracket is fixed on the propulsion disc.

9. The circular loom according to claim 8, characterized in that The bracket is L-shaped, and one end of the bracket sleeved with the rubber wheel seat is provided with a spring, and a weft pressing point is formed between the spring and the bracket.

10. The circular loom according to claim 8, characterized in that The bearing assembly comprises: a pair of bearings, each bearing is provided with a bearing retaining spring outside, and the rubber wheel seat is connected with the rubber wheel through the bearing assembly and then fixed by a fixing nut.

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