Rapier machine capable of actively adjusting yarn feeding tension

Abstract

The utility model relates to a rapier loom capable of actively adjusting yarn feeding tension, and belongs to the technical field of yarn processing. Comprising a rapier machine body, a yarn tension adjusting device is arranged on the yarn inlet side of the rapier machine body, and the yarn tension adjusting device comprises a mounting arm adjusting mechanism, a tensioning ring mounting arm A and a tensioning ring mounting arm B, a tensioning ring mounting arm A and a tensioning ring mounting arm B are mounted on the mounting arm adjusting mechanism in a position adjustable mode, a plurality of sets of detachable tensioning ring single bodies A are arranged in the length direction of the tensioning ring mounting arm A at intervals, and a plurality of sets of detachable tensioning ring single bodies B are arranged in the length direction of the tensioning ring mounting arm B at intervals. The detachable tensioning ring single bodies A and the detachable tensioning ring single bodies B are arranged in a staggered mode. The rapier loom has the advantages that the yarn is stably conveyed into the rapier loom body, and the effect of adjusting and controlling the tensioning force of the conveyed yarn is achieved.

Description

Technical Field

[0001] The utility model relates to a rapier machine with actively regulated yarn feeding tension, belonging to the technical field of textile processing. Background Art

[0002] The rapier loom was once ahead of other looms due to its good variety adaptability and relatively low price. It is currently widely used in color-dyed weaving, towels, silk weaving, wool weaving, linen weaving and other industries. It is the most common model for weaving medium and small batches of colorful fabrics. It has now developed into a widely used and large-scale shuttleless loom. Its biggest advantage is that it actively transfers the weft yarn to the center of the weaving mouth without the need for any guiding device. Due to the widespread application of microelectronics technology, the speed and weft insertion rate of the rapier loom have been greatly improved.

[0003] The patent application with patent number 201821700942.0 discloses a utility model of a yarn feeding tensioning device for a rapier machine, and discloses a yarn feeding tensioning device for a rapier machine, including a frame and a fixed yarn guide wheel arranged on the frame, a mounting seat is arranged on the frame behind the fixed yarn guide wheel, an adjusting gear is arranged on the mounting seat, a yarn guide rod is fixed on the side wall of the adjusting gear, a dynamic yarn guide wheel is arranged at the end of the yarn guide rod, and the yarn passes through the bottom of the fixed yarn guide wheel and the top of the dynamic yarn guide wheel in turn and is then input into the rapier machine, an electric motor is arranged on the frame on the side of the mounting seat, a driving gear is arranged on the output shaft of the electric motor, the driving gear and the adjusting gear are meshed with each other, a damping gear is arranged on the side of the adjusting gear, and the damping gear is used to position the adjusting gear.

[0004] Although the above patent can realize the function of the yarn tensioning device, the current technical considerations are not comprehensive and have the following disadvantages: when the yarn is used in a rapier machine, the yarn is relatively loose when it is transmitted for too long, and the loose yarn is prone to become messy during transmission, or cause the yarn to become tangled, which is inconvenient to use.

[0005] In order to solve one of the above problems, a rapier machine with active yarn feeding tension adjustment is urgently needed. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: when the yarn is suddenly too long, the actual tension of the yarn will be lower than the preset tension. How to control the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B through the mounting arm adjustment mechanism, so that the change in the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B drives the tension of the yarn to be adjusted, so that the tension of the yarn can be adjusted during transmission. For this purpose, a rapier machine with active adjustment of the yarn feeding tension is provided.

[0007] The utility model discloses a rapier machine with active yarn feeding tension adjustment, comprising a rapier machine body, wherein a yarn tension adjustment device is provided on the yarn inlet side of the rapier machine body, and is characterized in that: the yarn tension adjustment device comprises a mounting arm adjustment mechanism and a tensioning ring mounting arm A and a tensioning ring mounting arm B which are parallel to each other, the mounting arm adjustment mechanism is provided with a tensioning ring mounting arm A and a tensioning ring mounting arm B which are adjustably mounted on the tensioning ring mounting arm A and the tensioning ring mounting arm B so that the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B can be adjusted, a plurality of groups of detachable tensioning ring monomers A are arranged at intervals along the length direction of the tensioning ring mounting arm A, a plurality of groups of detachable tensioning ring monomers B are arranged at intervals along the length direction of the tensioning ring mounting arm B, the detachable tensioning ring monomers A and the detachable tensioning ring monomers B are arranged in a staggered manner, and a wire outlet guide ring is mounted on the mounting arm adjustment mechanism.

[0008] The yarn passes through the staggered detachable tensioning ring monomer A and the detachable tensioning ring monomer B in sequence, and then is transmitted to the rapier machine body through the outlet guide ring. When the yarn is suddenly too long, the actual tension of the yarn will be lower than the preset tension. The present application controls the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B through the mounting arm adjustment mechanism. The change in the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B drives the tension of the yarn to be adjusted, so that the tension of the yarn can be adjusted during transmission, so that it will not become loose due to the sudden excessive length of the yarn, and the yarn can be stably transmitted to the rapier machine body, achieving the effect of being able to adjust and control the tension of the transmitted yarn.

[0009] Preferably, the detachable tensioning ring monomer A includes a yarn guide ring A and a sliding sleeve A that slides with the tensioning ring mounting arm A. The outer side surface of the sliding sleeve A is threadedly connected with a locking bolt A. After the locking bolt A passes through the sliding sleeve A, it abuts against the tensioning ring mounting arm A to lock the sliding sleeve A on the tensioning ring mounting arm A. An arc-shaped connecting rod A is installed on the upper surface of the sliding sleeve A, and a yarn guide ring A is installed on the upper end of the arc-shaped connecting rod A.

[0010] After the sleeve A is mounted on the tension ring mounting arm A, the sleeve A can be locked by rotating the locking bolt A, so that the sleeve A is fixed on the tension ring mounting arm A, so that the detachable tension ring unit A can be installed on the tension ring mounting arm A more conveniently, and the number of detachable tension ring units A installed can be adjusted as needed. The convenient installation method makes maintenance and replacement more convenient.

[0011] Preferably, the tension ring mounting arm A is a long strip plate structure with a rectangular cross section, which has a simple structure and ensures structural strength.

[0012] Preferably, the detachable tensioning ring monomer B includes a yarn guide ring B and a sleeve B that slides with the tensioning ring mounting arm B. The outer side surface of the sleeve B is threadedly connected with a locking bolt B. After the locking bolt B passes through the sleeve B, it abuts against the tensioning ring mounting arm B to lock the sleeve B on the tensioning ring mounting arm B. An arc-shaped connecting rod B is installed on the upper surface of the sleeve B, and a yarn guide ring B is installed on the upper end of the arc-shaped connecting rod B.

[0013] The structure of the detachable tensioning ring monomer B is the same as that of the detachable tensioning ring monomer A. After the sleeve B is mounted on the tensioning ring mounting arm B, the sleeve B can be locked by rotating the locking bolt B, so that the sleeve B is fixed on the tensioning ring mounting arm B, so that the detachable tensioning ring monomer B can be installed on the tensioning ring mounting arm B more conveniently, and the number of detachable tensioning ring monomers B installed can be adjusted as needed. The convenient installation method makes maintenance and replacement more convenient.

[0014] Preferably, the tension ring mounting arm B is a long strip plate-like structure with a rectangular cross-section.

[0015] Preferably, the multiple groups of yarn guide rings A and the multiple groups of yarn guide rings B are arranged in a staggered manner and are all at the same height as the outlet wire guide ring.

[0016] Preferably, the mounting arm adjustment mechanism includes a mounting plate, the two ends of the mounting plate are respectively vertically connected with a connecting end plate A and a connecting end plate B, a first sliding rod and a second sliding rod parallel to each other are installed between the connecting end plate A and the connecting end plate B, the first sliding rod and the second sliding rod respectively penetrate the tensioning ring mounting arm A and the tensioning ring mounting arm B, the first sliding rod between the tensioning ring mounting arm A and the tensioning ring mounting arm B is sleeved with a first compression spring, the second sliding rod between the tensioning ring mounting arm A and the tensioning ring mounting arm B is sleeved with a second compression spring, the elastic force provided by the first compression spring and the second compression spring makes the tensioning ring mounting arm A and the tensioning ring mounting arm B always have a tendency to move away from each other, and the wire guide ring is installed on the mounting plate.

[0017] Under normal conditions, the yarn reaches a preset tension, and the yarn passes through the yarn guide ring A and the yarn guide ring B. Under the action of tension, the tension ring mounting arm A and the tension ring mounting arm B are driven to overcome the thrust of the compressed first compression spring 5 and the second compression spring and approach each other; when the yarn is suddenly too long, the actual tension of the yarn will be lower than the preset tension, and the yarn passes through the yarn guide ring A and the yarn guide ring B. Under the action of the thrust of the first compression spring and the second compression spring, the tension ring mounting arm A and the tension ring mounting arm B move away from each other, and the yarn meanders between the adjacent yarn guide rings A and B, and the yarn travel route is converted from a straight line to a broken line, so that the yarn tension can be adjusted during transmission, so that it will not become loose due to the sudden length of the yarn, and the yarn can be stably transmitted to the rapier machine body, thereby achieving the effect of being able to adjust and control the tension of the transmitted yarn.

[0018] Preferably, after the first compression spring and the second compression spring are compressed to the limit, the yarn guide ring A and the yarn guide ring B are coaxially arranged.

[0019] Preferably, the yarn guide ring A and the arc-shaped connecting rod A are both made of ceramic material, and the arc-shaped connecting rod A is bonded to the sliding sleeve A.

[0020] Preferably, a first tension spring is connected between the connecting end plate A and the tension ring mounting arm A, and a second tension spring is connected between the connecting end plate B and the tension ring mounting arm B. The tension provided by the first tension spring and the second tension spring makes the tension ring mounting arm A and the tension ring mounting arm B always have a tendency to move away from each other, which plays an auxiliary effect on the first compression spring and the second compression spring. Preferably, a guide ring mounting frame is detachably mounted on the other end of the connecting end plate A and the connecting end plate B, an incoming wire guide ring is mounted in the middle of the guide ring mounting frame, and the outgoing wire guide ring and the incoming wire guide ring are arranged on a straight line.

[0021] Preferably, the connecting end plate A and the connecting end plate B are respectively provided with a proximity sensor A and a proximity sensor B, and the proximity sensor A and the proximity sensor B are both electrically connected to the signal input end of the controller, and the signal output end of the controller is connected to a sound and light alarm. When the proximity sensor A detects that the tensioning ring mounting arm A is approaching, the proximity sensor B also detects that the tensioning ring mounting arm B is approaching, indicating that the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B has reached a maximum value. At this time, the sound and light alarm prompts the operator that the yarn tension adjusting device of the present application needs to use external force to recover excess yarn to restore the adjustment function of the yarn tension adjusting device; the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B has reached the maximum value, which may also be due to accidental yarn breakage, reminding the operator to check whether the machine is working normally in time.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In the rapier machine with active yarn input tension adjustment described in the utility model, the yarn passes through the staggered detachable tensioning ring monomer A and the detachable tensioning ring monomer B in sequence, and then is transmitted to the rapier machine body through the outlet guide ring. When the yarn is suddenly too long, the actual tension of the yarn will be lower than the preset tension. The present application controls the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B through the mounting arm adjustment mechanism. The change in the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B drives the yarn tension to be adjusted, so that the yarn tension can be adjusted during transmission, so that the yarn will not become loose due to the sudden excessive length of the yarn, and the yarn can be stably transmitted to the rapier machine body, achieving the effect of being able to adjust and control the tension of the transmitted yarn.

[0024] In the rapier machine with active yarn feeding tension adjustment described in the utility model, a first tension spring is connected between the connecting end plate A and the tensioning ring mounting arm A, and a second tension spring is connected between the connecting end plate B and the tensioning ring mounting arm B. The tension provided by the first tension spring and the second tension spring makes the tensioning ring mounting arm A and the tensioning ring mounting arm B always tend to move away from each other, thereby assisting the first compression spring and the second compression spring.

[0025] The utility model discloses a rapier machine with active yarn feeding tension adjustment, wherein the connecting end plate A and the connecting end plate B are respectively provided with proximity sensors A and B, which are used to check the positions of the tensioning ring mounting arm A and the tensioning ring mounting arm B, and remind the operator to promptly check whether the machine is working normally, so as to realize the wire breakage warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0027] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0028] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the external structure of the detachable tension ring monomer A of the utility model;

[0030] Figure 4 This is a schematic diagram of the external structure of the detachable tension ring monomer A of the utility model;

[0031] Figure 5 The structure of the utility model is shown in FIG. Figure 3 ;

[0032] In the figure: 1. detachable tensioning ring monomer A 1.1, yarn guide ring A .1.2, arc-shaped connecting rod A 1.3, sliding sleeve A 1.4, locking bolt A 2. detachable tensioning ring monomer B 2.1, yarn guide ring B 2.2, arc-shaped connecting rod B 2.3, sliding sleeve B 2.4, locking bolt B 3, tensioning ring mounting arm A 4, tensioning ring mounting arm B 5, mounting arm adjustment mechanism 5.1, mounting plate 5.2, connecting end plate A 5.3, connecting end plate B 5.4, first slide bar 5.5, second slide bar 5.6, first compression spring 5.7, second compression spring 6, outlet guide ring 7, rapier machine body 8, yarn 9, first tension spring 10, second tension spring 11, guide ring mounting frame 12, inlet guide ring 13, proximity sensor A 14, proximity sensor B. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings: The utility model is further illustrated below through specific embodiments, but is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the utility model.

[0034] Embodiment 1, as Figure 1-2 As shown, the rapier machine with active yarn feeding tension adjustment comprises a rapier machine body 7, a yarn tension adjusting device is provided on the yarn inlet side of the rapier machine body, the yarn tension adjusting device comprises a mounting arm adjusting mechanism 5 and a tensioning ring mounting arm A3 and a tensioning ring mounting arm B4 which are parallel to each other, the mounting arm adjusting mechanism 5 is provided with a tensioning ring mounting arm A3 and a tensioning ring mounting arm B4 which are adjustably mounted on the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 so that the distance between the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 can be adjusted, a plurality of groups of detachable tensioning ring monomers A1 are arranged at intervals along the length direction of the tensioning ring mounting arm A3, a plurality of groups of detachable tensioning ring monomers B2 are arranged at intervals along the length direction of the tensioning ring mounting arm B4, the detachable tensioning ring monomers A1 and the detachable tensioning ring monomers B2 are arranged in a staggered manner, and a wire outlet guide ring 6 is installed on the mounting arm adjusting mechanism 5.

[0035] The yarn 8 passes through the staggered detachable tension ring monomer A1 and the detachable tension ring monomer B2 in sequence, and then is transmitted to the rapier machine body 7 through the outlet guide ring 6. The present application controls the spacing between the tension ring mounting arm A3 and the tension ring mounting arm B4 through the mounting arm adjustment mechanism 5. Figure 1 The state is converted to Figure 2In this state, the change in the distance between the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 drives the tension of the yarn 8 to be adjusted, so that the tension of the yarn can be adjusted during transmission, so that the yarn will not become loose due to the sudden excessive length of the yarn, and the yarn 8 can be stably transmitted to the rapier machine body 7, thereby achieving the effect of being able to adjust and control the tension of the transmitted yarn.

[0036] Embodiment 2, as Figure 1-2 As shown, the rapier machine with active yarn feeding tension adjustment comprises a rapier machine body 7, a yarn tension adjusting device is provided on the yarn inlet side of the rapier machine body, the yarn tension adjusting device comprises a mounting arm adjusting mechanism 5 and a tensioning ring mounting arm A3 and a tensioning ring mounting arm B4 which are parallel to each other, the mounting arm adjusting mechanism 5 is provided with a tensioning ring mounting arm A3 and a tensioning ring mounting arm B4 which are adjustably mounted on the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 so that the distance between the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 can be adjusted, a plurality of groups of detachable tensioning ring monomers A1 are arranged at intervals along the length direction of the tensioning ring mounting arm A3, a plurality of groups of detachable tensioning ring monomers B2 are arranged at intervals along the length direction of the tensioning ring mounting arm B4, the detachable tensioning ring monomers A1 and the detachable tensioning ring monomers B2 are arranged in a staggered manner, and a wire outlet guide ring 6 is installed on the mounting arm adjusting mechanism 5.

[0037] Further, refer to Figure 3 The detachable tensioning ring monomer A1 includes a yarn guide ring A1.1 and a sliding sleeve A1.3 that slides with the tensioning ring mounting arm A3. The outer side surface of the sliding sleeve A1.3 is threadedly connected with a locking bolt A1.4. After the locking bolt A1.4 passes through the sliding sleeve A1.3, it abuts against the tensioning ring mounting arm A3 to lock the sliding sleeve A1.3 on the tensioning ring mounting arm A3. An arc-shaped connecting rod A1.2 is installed on the upper surface of the sliding sleeve A1.3, and a yarn guide ring A1.1 is installed on the upper end of the arc-shaped connecting rod A1.2.

[0038] After the sleeve A1.3 is mounted on the tension ring mounting arm A3, the sleeve A1.3 can be locked by rotating the locking bolt A1.4, so that the sleeve A1.3 is fixed on the tension ring mounting arm A3, so that the detachable tension ring monomer A1 can be more conveniently installed on the tension ring mounting arm A3, and the number of detachable tension ring monomers A1 installed can be adjusted as needed. The convenient installation method makes maintenance and replacement more convenient.

[0039] Furthermore, the tension ring mounting arm A3 is a long strip plate structure with a rectangular cross section, which has a simple structure and ensures structural strength.

[0040] Further, refer to Figure 4The detachable tensioning ring monomer B2 includes a yarn guide ring B2.1 and a sliding sleeve B2.3 that slides with the tensioning ring mounting arm B4. The outer side surface of the sliding sleeve B2.3 is threadedly connected with a locking bolt B2.4. After the locking bolt B2.4 passes through the sliding sleeve B2.3, it abuts against the tensioning ring mounting arm B4 to lock the sliding sleeve B2.3 on the tensioning ring mounting arm B4. An arc-shaped connecting rod B2.2 is installed on the upper surface of the sliding sleeve B2.3, and a yarn guide ring B2.1 is installed on the upper end of the arc-shaped connecting rod B2.2.

[0041] The structure of the detachable tensioning ring monomer B2 is the same as that of the detachable tensioning ring monomer A1. After the sleeve B2.3 is mounted on the tensioning ring mounting arm B4, the sleeve B2.3 can be locked by rotating the locking bolt B2.4, so that the sleeve B2.3 is fixed on the tensioning ring mounting arm B4, so that the detachable tensioning ring monomer B2 can be installed on the tensioning ring mounting arm B4 more conveniently, and the installation quantity of the detachable tensioning ring monomer B2 can be adjusted as needed. The convenient installation method makes maintenance and replacement more convenient.

[0042] Furthermore, the tension ring mounting arm B4 is a long strip plate-like structure with a rectangular cross-section.

[0043] Furthermore, the multiple groups of yarn guide rings A1.1 and the multiple groups of yarn guide rings B2.1 are arranged in a staggered manner and are all at the same height as the outlet wire guide ring 6.

[0044] Furthermore, the mounting arm adjustment mechanism 5 includes a mounting plate 5.1, and the two ends of the mounting plate 5.1 are respectively vertically connected with a connecting end plate A5.2 and a connecting end plate B5.3, and a first slide bar 5.4 and a second slide bar 5.5 parallel to each other are installed between the connecting end plate A5.2 and the connecting end plate B5.3, and the first slide bar 5.4 and the second slide bar 5.5 respectively penetrate the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4, and a first compression spring 5.6 is sleeved on the first slide bar 5.4 between the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4, and a second compression spring 5.7 is sleeved on the second slide bar 5.5 between the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4, and the elastic force provided by the first compression spring 5.6 and the second compression spring 5.7 makes the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 always have a tendency to move away from each other, and the outlet wire guide ring 6 is installed on the mounting plate 5.1.

[0045] Under normal conditions, the yarn 8 reaches a preset tension, and the yarn 8 passes through the yarn guide ring A1.1 and the yarn guide ring B2.1. Under the action of the tension, the tension ring mounting arm A3 and the tension ring mounting arm B4 are driven to approach each other to overcome the thrust of the first compression spring 5.6 and the second compression spring 5.7.

[0046] When the yarn 8 is suddenly too long, the actual tension of the yarn 8 will be lower than the preset tension. The yarn 8 passes through the yarn guide ring A1.1 and the yarn guide ring B2.1. Under the thrust of the first compression spring 5.6 and the second compression spring 5.7, the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 move away from each other. The yarn 8 meanders between the adjacent yarn guide rings A1.1 and B2.1. The travel route of the yarn 8 is changed from a straight line to a broken line, so that the tension of the yarn can be adjusted during transmission, so that it will not become loose due to the sudden increase of the yarn length, and the yarn 8 can be stably transmitted to the rapier machine body 7, thereby achieving the effect of being able to adjust and control the tension of the transmitted yarn.

[0047] Furthermore, after the first compression spring 5.6 and the second compression spring 5.7 are compressed to the limit, the yarn guide ring A1.1 and the yarn guide ring B2.1 are coaxially arranged.

[0048] Furthermore, the yarn guide ring A1.1 and the arc-shaped connecting rod A1.2 are both made of ceramic materials, and the arc-shaped connecting rod A1.2 is bonded to the sliding sleeve A1.3.

[0049] Furthermore, a first tension spring 9 is connected between the connecting end plate A5.2 and the tension ring mounting arm A3, and a second tension spring 10 is connected between the connecting end plate B5.3 and the tension ring mounting arm B4. The tension provided by the first tension spring 9 and the second tension spring 10 makes the tension ring mounting arm A3 and the tension ring mounting arm B4 always tend to move away from each other, thereby assisting the first compression spring 5.6 and the second compression spring 5.7.

[0050] Example 3, reference Figure 5 The difference from Example 2 is that the other ends of the connecting end plates A5.2 and B5.3 are detachably mounted with guide ring mounting frames 11, an incoming line guide ring 12 is mounted in the middle of the guide ring mounting frame 11, and the outgoing line guide ring 6 and the incoming line guide ring 12 are arranged in a straight line.

[0051] Furthermore, the connecting end plate A5.2 and the connecting end plate B5.3 are respectively provided with a proximity sensor A13 and a proximity sensor B14, and the proximity sensor A13 and the proximity sensor B14 are both electrically connected to the signal input end of the controller, and the signal output end of the controller is connected to a sound and light alarm. When the proximity sensor A13 detects that the tensioning ring mounting arm A3 is approaching, the proximity sensor B14 also detects that the tensioning ring mounting arm B4 is approaching, indicating that the distance between the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 has reached a maximum value. At this time, the sound and light alarm prompts the operator that the yarn tension adjusting device of the present application needs to use external force to recover the excess yarn 8 to restore the adjustment function of the yarn tension adjusting device; the distance between the tensioning ring mounting arm A3 and the tensioning ring mounting arm B4 has reached the maximum value, which may also be due to the accidental breakage of the yarn 8, reminding the operator to check whether the machine is working normally in time.

[0052] In the rapier machine with active yarn input tension adjustment described in the utility model, the yarn passes through the staggered detachable tensioning ring monomer A and the detachable tensioning ring monomer B in sequence, and then is transmitted to the rapier machine body through the outlet guide ring. When the yarn is suddenly too long, the actual tension of the yarn will be lower than the preset tension. The present application controls the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B through the mounting arm adjustment mechanism. The change in the distance between the tensioning ring mounting arm A and the tensioning ring mounting arm B drives the yarn tension to be adjusted, so that the yarn tension can be adjusted during transmission, so that the yarn will not become loose due to the sudden excessive length of the yarn, and the yarn can be stably transmitted to the rapier machine body, achieving the effect of being able to adjust and control the tension of the transmitted yarn.

[0053] In the rapier machine with active yarn feeding tension adjustment described in the utility model, a first tension spring is connected between the connecting end plate A and the tensioning ring mounting arm A, and a second tension spring is connected between the connecting end plate B and the tensioning ring mounting arm B. The tension provided by the first tension spring and the second tension spring makes the tensioning ring mounting arm A and the tensioning ring mounting arm B always tend to move away from each other, thereby assisting the first compression spring and the second compression spring.

[0054] In the rapier machine with active yarn feeding tension adjustment described in the utility model, the connecting end plate A and the connecting end plate B are respectively provided with proximity sensors A and B, which are used to check the positions of the tensioning ring mounting arm A and the tensioning ring mounting arm B, reminding the operator to check whether the machine is working normally in time, thereby reducing the scrap rate and the consumption of raw and auxiliary materials.

[0055] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the present utility model is defined by the attached claims and their equivalents.

[0056] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A rapier machine with active yarn tension adjustment, comprising a rapier machine body, wherein a yarn tension adjustment device is provided on the yarn inlet side of the rapier machine body, and characterized in that: The yarn tension adjustment device includes a mounting arm adjustment mechanism and a tension ring mounting arm A and a tension ring mounting arm B which are parallel to each other. The mounting arm adjustment mechanism is provided with a tension ring mounting arm A and a tension ring mounting arm B which are adjustably mounted on the mounting arm adjustment mechanism so that the distance between the tension ring mounting arm A and the tension ring mounting arm B can be adjusted. A plurality of groups of detachable tension ring monomers A are arranged at intervals along the length direction of the tension ring mounting arm A, and a plurality of groups of detachable tension ring monomers B are arranged at intervals along the length direction of the tension ring mounting arm B. The detachable tension ring monomers A and the detachable tension ring monomers B are arranged in an alternating manner, and a wire outlet guide ring is installed on the mounting arm adjustment mechanism.

2. The rapier machine with active yarn tension adjustment according to claim 1, characterized in that: The detachable tensioning ring monomer A includes a yarn guide ring A and a sliding sleeve A that slides with the tensioning ring mounting arm A. The outer side surface of the sliding sleeve A is threadedly connected with a locking bolt A. After the locking bolt A passes through the sliding sleeve A, it abuts against the tensioning ring mounting arm A to lock the sliding sleeve A on the tensioning ring mounting arm A. An arc-shaped connecting rod A is installed on the upper surface of the sliding sleeve A, and a yarn guide ring A is installed on the upper end of the arc-shaped connecting rod A.

3. The rapier machine with active yarn tension adjustment according to claim 2, characterized in that: The tension ring mounting arm A is a long strip plate-like structure with a rectangular cross section.

4. The rapier machine with active yarn tension adjustment according to claim 3, characterized in that: The detachable tensioning ring monomer B includes a yarn guide ring B and a sleeve B that slides with the tensioning ring mounting arm B. The outer side surface of the sleeve B is threadedly connected with a locking bolt B. After the locking bolt B passes through the sleeve B, it abuts against the tensioning ring mounting arm B to lock the sleeve B on the tensioning ring mounting arm B. An arc-shaped connecting rod B is installed on the upper surface of the sleeve B, and a yarn guide ring B is installed on the upper end of the arc-shaped connecting rod B.

5. The rapier machine with active yarn tension adjustment according to claim 4, characterized in that: The tension ring mounting arm B is a long strip plate-like structure with a rectangular cross section.

6. The rapier machine with active yarn tension adjustment according to claim 5, characterized in that: The multiple groups of yarn guide rings A and the multiple groups of yarn guide rings B are arranged in a staggered manner and are all at the same height as the outlet thread guide ring.

7. The rapier machine with active yarn tension adjustment according to claim 6, characterized in that: The mounting arm adjustment mechanism includes a mounting plate, and the two ends of the mounting plate are respectively vertically connected with a connecting end plate A and a connecting end plate B, and a first sliding rod and a second sliding rod parallel to each other are installed between the connecting end plate A and the connecting end plate B, and the first sliding rod and the second sliding rod respectively penetrate the tensioning ring mounting arm A and the tensioning ring mounting arm B, and the first sliding rod between the tensioning ring mounting arm A and the tensioning ring mounting arm B is sleeved with a first compression spring, and the second sliding rod between the tensioning ring mounting arm A and the tensioning ring mounting arm B is sleeved with a second compression spring, and the elastic force provided by the first compression spring and the second compression spring makes the tensioning ring mounting arm A and the tensioning ring mounting arm B always have a tendency to move away from each other, and the outlet wire guide ring is installed on the mounting plate.

8. The rapier machine with active yarn tension adjustment according to claim 7, characterized in that: After the first compression spring and the second compression spring are compressed to the limit, the yarn guide ring A and the yarn guide ring B are coaxially arranged.

9. The rapier machine with active yarn tension adjustment according to claim 8, characterized in that: The yarn guide ring A and the arc-shaped connecting rod A are both made of ceramic material, and the arc-shaped connecting rod A is bonded to the sliding sleeve A.

10. The rapier machine with active yarn tension adjustment according to claim 9, characterized in that: A first tension spring is connected between the connecting end plate A and the tension ring mounting arm A, and a second tension spring is connected between the connecting end plate B and the tension ring mounting arm B. The tension provided by the first tension spring and the second tension spring ensures that the tension ring mounting arm A and the tension ring mounting arm B always tend to move away from each other.

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