High-speed rapier loom

Abstract

The utility model relates to the field of textile machinery, in particular to a high-speed rapier loom which comprises a machine frame, a power box, a heald raising rod, a heald raising arm heald frame, a T-shaped connecting piece and an L-shaped connecting piece are arranged on the machine frame, and the L-shaped connecting piece and the T-shaped connecting piece are connected with the machine frame in a rotating mode. The lower end of the heald lifting arm is rotationally connected with the upper free ends of the T-shaped connecting piece and the L-shaped connecting piece, and the upper end of the heald lifting arm is rotationally connected with the lower edge of the heald frame; the heald raising rod comprises a plurality of independent rod pieces which are respectively arranged at the output end of the power box and the T-shaped connecting piece, the T-shaped connecting piece and the L-shaped connecting piece, and between the L-shaped connecting pieces; the rapier loom heald lifting rod has the advantages that the heald lifting rod is divided into a plurality of independent rod pieces from an integral rod piece, if a fault occurs, the corresponding faulted rod piece can be disassembled, integral disassembly is not needed, and maintenance of the rapier loom is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery, and in particular to a high-speed rapier loom. Background Technology

[0002] like Figure 1 and 2 As shown, this is the technical solution of the applicant's prior application (patent number: 201911098547.9), which discloses a weaving machine that can realize twist weaving, including front and rear heald frames, an opening power group for driving the front heald frame to move left and right, and a heald starting power group for driving the two heald frames to move up and down. The above scheme has the following drawbacks: 1. The heddle-starting power unit includes gear transmission and speed change structure, which is used to change the speed of the power of the loom's main drive motor and transmit it to the swing mechanism in the heddle-starting power unit. The swing mechanism swings back and forth to drive the two heddle rods to reciprocate within a certain range. Then, through the adapter, it drives the front and rear heddle frames to move up and down. However, in the above scheme, the swing mechanism and the heddle rods are arranged in the same plane, which makes the overall area of ​​the heddle-starting power unit large, which is not conducive to integrating it with the loom frame. At the same time, in the above scheme, the translational motion of the output rod in the swing mechanism is converted into the reciprocating rotation of the heddle rods, and then the rotation is converted into up and down motion through the adapter, resulting in the output of driving force not being direct enough; 2. The power transmission structure of the loom's main drive motor, the shedding power unit, and the heddle-starting power unit is relatively complex, which is time-consuming to install, requires frequent maintenance, and is costly.

[0003] To address the aforementioned shortcomings, the applicant subsequently proposed a new high-speed rapier loom, such as... Figure 3 and Figure 4 As shown, see also patent CN202311229695.6. This patent employs a swing mechanism that moves up and down, using an L-shaped connector to allow the power output from the swing mechanism to directly drive the heald frame to move up and down. This reduces force loss during conversion and improves transmission efficiency. Simultaneously, the power for the shedding power unit and the heald raising power unit is transmitted through the same bidirectional transmission shaft, eliminating the need for a separate power transmission structure between the loom's main drive and the shedding power unit. This improves the integration of the shedding power unit and the heald raising power unit and simplifies the power transmission structure between the loom's main drive and the shedding and heald raising power units.

[0004] However, in actual production, the applicant discovered the following defects:

[0005] 1. Because the above scheme requires the use of a set of common weft cam sets on both sides (e.g., ...) in the heddler power unit, it is necessary to... Figure 4 The top and bottom sides or such Figure 2 Both the front and rear sides of the loom are equipped with heddle-raising swing arms, but when the cam rotates one revolution, the heddle-raising swing arms can only complete one back-and-forth swinging motion, making it difficult to further increase the speed of the rapier loom.

[0006] 2. In the above scheme, if Figure 3 As shown, the heddle rod used to connect the heddle frame is a single square tube. If a malfunction occurs, the entire square tube needs to be dismantled. Since the square tube is very long and has many connection nodes, the whole dismantling solution requires a lot of manpower and is very inconvenient.

[0007] 3. In the currently used heddle starting power unit, the positions of the heddle starting common weft cam group and the heddle starting swing arm are fixed, and the gap cannot be easily adjusted. If the loom speed needs to be adjusted, the cam can only be replaced. At the same time, since the gap cannot be easily adjusted, the removal of the cam is also quite troublesome.

[0008] Therefore, this case is brought. Utility Model Content

[0009] The purpose of this invention is to provide a high-speed rapier loom to solve the above-mentioned problems.

[0010] A high-speed rapier loom includes a frame, on which a power box, a heddle rod, heddle arms, and two heddle frames arranged in a front-to-back direction are mounted. It also includes a T-shaped connector and an L-shaped connector. The L-shaped connector includes upper and lower free ends and a right-angle end, wherein the right-angle end is rotatably connected to the frame. The T-shaped connector includes upper, middle, and lower free ends and a center node, wherein the center node is rotatably connected to the frame. Multiple heddle arms are included; the lower end of the heddle arm located at the T-shaped connector is rotatably connected to the middle free end of the T-shaped connector, and the lower end of the heddle arm located at the L-shaped connector is rotatably connected to the upper free end of the L-shaped connector. The upper end of the heddle arm is rotatably connected to the lower edge of the heddle frame.

[0011] The heddle-starting rod includes a heddle-starting connecting rod, a heddle-starting end rod, and a heddle-starting marker rod. One end of the heddle-starting connecting rod is rotatably connected to the output end of the power box, and the other end is rotatably connected to the upper free end of the T-shaped connector. The heddle-starting end rod is located between the T-shaped connector and the L-shaped connector, and its two ends are rotatably connected to the lower free end of the T-shaped connector and the lower free end of the L-shaped connector, respectively. The heddle-starting marker rod is located between two adjacent L-shaped connectors, and its two ends are rotatably connected to the lower free end of the L-shaped connector, respectively.

[0012] Furthermore, the helical linkage, helical end rod, and helical marker rod each include a rod portion, screws located at both ends of the rod portion, nut blocks located at both ends of the rod portion, and locking nuts. The end faces at both ends of the rod portion are provided with internal threaded holes. One end of the screw can be screwed into the internal threaded hole at the rod end and locked with the locking nut. The other end of the screw can be screwed into the nut block and locked with the locking nut. The end of the locking nut away from the screw is used for rotatable connection with the output end of the L-shaped connector, T-shaped connector, or power box.

[0013] Furthermore, the power box includes a housing, inside which are an input gear set and a heddle-starting power set. The heddle-starting power set includes a heddle-starting input shaft and a mounting shaft. The input gear set outputs power to the heddle-starting input shaft. The two ends of the heddle-starting input shaft are rotatably connected to the housing via bearings. The two ends of the mounting shaft are fixed to the housing. Two heddle-starting common weft cam sets are fixed on the heddle-starting input shaft. The heddle-starting common weft cam sets include cam one and cam two. Two heddle-starting swing arms corresponding to the heddle-starting common weft cam sets are connected to the mounting shaft via bearings. The heddle-starting swing arms are provided with roller one that cooperates with cam one and roller two that cooperates with cam two. Cam one pushes roller one to make the heddle-starting swing arm swing to the left around the mounting shaft. Cam two pushes roller two to make the heddle-starting swing arm swing to the right around the mounting shaft. The upper end of the heddle-starting swing arm is rotatably connected to the heddle-starting connecting rod.

[0014] Furthermore, the connection between the housing and the mounting shaft is integrally formed with an externally protruding shaft hole. The side wall of the externally protruding shaft hole is provided with a screw hole and a tightening bolt is threadedly connected. The end of the mounting shaft can pass through the externally protruding shaft hole and the mounting shaft is fixed by tightening the tightening bolt.

[0015] It includes a bushing and a clamp. The bushing is fitted onto the mounting shaft. The bushing includes an eccentric section and a locking section. The locking section is divided into several pieces along the circumference. The clamp is set on the outer wall of the locking section. The clamp closes the locking section, so that the bushing is fixed to the mounting shaft. The helical swing arm is mounted on the outer wall of the eccentric section through a bearing.

[0016] Furthermore, the end face of the mounting shaft is provided with a screwing structure to facilitate the rotation of the shaft.

[0017] Furthermore, the housing is equipped with an opening power assembly, which includes an opening input shaft, an opening swing arm shaft, a transmission rod, and a left-right moving rod. The input gear set outputs power to the opening input shaft. Both ends of the opening input shaft and the opening swing arm shaft are supported on the housing by bearings. An opening common weft cam assembly is fixed on the opening input shaft, which includes cam three and cam four. An opening swing arm is fixed on the opening swing arm shaft. The opening swing arm is equipped with roller three that cooperates with cam three and roller four that cooperates with cam four. Cam three pushes roller three to make the opening swing arm swing to the right around the opening swing arm axis, and cam four pushes roller four to make the opening swing arm swing to the left around the opening swing arm axis.

[0018] The two ends of the transmission rod are rotatably connected to the upper end of the open swing arm and one end of the left and right moving rod, respectively. The other end of the left and right moving rod is used to connect to the front heald frame. The box body is provided with a limit structure to restrict the left and right moving rod to move only in the left and right directions.

[0019] Furthermore, the limiting structure includes a mounting plate fixed to the housing, and the mounting plate is provided with a plurality of rollers arranged in a left-right direction. The rod of the left-right moving rod is provided with an elongated hole arranged in a left-right direction, and the plurality of rollers can be precisely embedded in the elongated hole.

[0020] Furthermore, the open swing arm includes an L-shaped swing arm and a sleeve. One side of the sleeve is rotatably connected to one end of the transmission rod. A vertical hole is provided on the sleeve, and the upper end of the L-shaped swing arm can be inserted upward into the vertical hole. A clamping bolt for clamping the upper end of the L-shaped swing arm is threadedly connected to the side wall of the vertical hole.

[0021] Furthermore, the input gear set includes a main input shaft one, an input bevel gear one, a main input shaft two, an input bevel gear two, a transmission gear one, a transmission gear two, a synchronizing pulley one, and a synchronizing pulley two;

[0022] Both ends of the main input shaft one and main input shaft two are supported on the housing by bearings. The input bevel gear one is fixed on the main input shaft one, the input bevel gear two is fixed on the main input shaft two and meshes with the input bevel gear one, the transmission gear one is fixed on the main input shaft two, and the transmission gear two is fixed on the hoisting input shaft and meshes with the transmission gear one.

[0023] Synchronous pulley one is fixed on the main input shaft two, synchronous pulley two is fixed on the open input shaft, and synchronous pulley one and synchronous pulley two are driven by synchronous belt.

[0024] The advantages of this utility model are:

[0025] 1. By adopting a single-sided heddle swing arm in conjunction with a common weft cam, the design of the cam allows the heddle swing arm to swing back and forth 3 times for one rotation. Compared with existing rapier looms, the power can be increased by 3 times, greatly improving production efficiency.

[0026] 2. By setting an eccentric bushing, the gap between the heddle swing arm and the common weft cam can be adjusted, thereby changing the swing speed of the heddle swing arm and realizing the switching of different fabric modes such as cross weaving, twill weaving, and plain weaving on the rapier loom without disassembling and replacing the cam. At the same time, since the gap between the heddle swing arm and the common weft cam is adjustable, when the gap is adjusted to the maximum, the common weft cam group can be easily disassembled.

[0027] 3. The heald bar is split from a single integral bar into multiple independent bars. In case of a malfunction, the corresponding faulty bar can be removed without disassembling the entire machine, which facilitates the maintenance of the rapier loom. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the rapier loom in the background technology patent number 201911098547.9;

[0029] Figure 2 for Figure 1 A three-dimensional structural diagram of the integrated power unit;

[0030] Figure 3 This is a three-dimensional structural schematic diagram of the rapier loom described in background technology patent number 202311229695.6;

[0031] Figure 4 for Figure 3 A three-dimensional structural diagram of the integrated power unit;

[0032] Figure 5 This is a three-dimensional structural diagram of the rapier loom in the embodiment;

[0033] Figure 6 for Figure 5 A three-dimensional structural diagram of the power box of a rapier loom;

[0034] Figure 7 for Figure 6 A schematic diagram of the input gear set and the hoisting power set in the power box;

[0035] Figure 8 for Figure 6 A schematic diagram of the structure of the helical concentric cam assembly and the helical swing arm in the power box;

[0036] Figure 9 This is a three-dimensional structural diagram of the swing arm in the embodiment;

[0037] Figure 10 for Figure 9 An explosion diagram;

[0038] Figure 11 This is a schematic diagram of the assembly of the heddle rod and the front and rear heddle frames of the rapier loom in the embodiment;

[0039] Figure 12 for Figure 11 Enlarged diagram of part A in the diagram;

[0040] Figure 13 for Figure 11 Enlarged schematic diagram of part B in the diagram;

[0041] Figure 14 for Figure 6 A schematic diagram of the input gear set and the open power set in the power box;

[0042] Figure 15 for Figure 14 A diagram from another perspective;

[0043] Figure 16 This is an exploded schematic diagram of the open swing arm in the embodiment.

[0044] Label Explanation

[0045] 1. Front frame; 2. Back frame;

[0046] 3. Open-end power assembly; 301. Open-end input shaft; 302. Open-end swing arm shaft; 303. Transmission rod; 304. Left and right movement rod; 305. Open-end concentric cam assembly; 3051. Cam three; 3052. Cam four; 306. Roller three; 307. Roller four; 308. Roller five; 309. Oblong hole; 310. L-shaped swing arm; 311. Clip; 312. Vertical hole; 313. Clamping bolt;

[0047] 4. Harnessing power unit; 401. Harnessing input shaft; 402. Mounting shaft; 403. Harnessing common weft cam assembly; 4031. Cam 1; 4032. Cam 2; 404. Twisting structure; 405. Harnessing swing arm; 406. Roller 1; 407. Roller 2; 408. Outer protruding shaft hole; 409. Tightening bolt; 410. Bushing; 4101. Eccentric section; 4102. Locking section; 411. Clamp;

[0048] 5. Input gear set; 501. Main input shaft one; 502. Input bevel gear one; 503. Main input shaft two; 504. Input bevel gear two; 505. Transmission gear one; 506. Transmission gear two; 507. Synchronizing pulley one; 508. Synchronizing pulley two;

[0049] 6. Raise the heel arm;

[0050] 7. Helmets lifting rod; 701. Helmets lifting connecting rod; 702. Helmets lifting end rod; 703. Helmets lifting marker rod; 704. Screw rod; 705. Nut block; 706. Locking nut;

[0051] 8. L-shaped connector; 801. Right-angle end; 802. Upper free end; 803. Lower free end;

[0052] 9. T-type connector; 901. Upper free end; 902. Middle free end; 903. Lower free end; 904. Center node;

[0053] 10. Transition structure between the open-end power unit and the front heel frame. Detailed Implementation

[0054] The present invention will be further described in detail below with reference to embodiments. It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer" used in this document indicate the orientation or positional relationship based on the attached embodiments. Figure 5The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] This embodiment proposes a high-speed rapier loom, such as Figure 5 and Figure 6 As shown, the machine includes a frame. A power box is located on the left side of the frame, comprising an input gear set 5, an opening power set 3, and a heddle-lifting power set 4. The right side of the frame has front and rear heddle frames 1 and 2 arranged in a front-to-back direction, and T-shaped connectors 9 and L-shaped connectors 8, and a heddle-lifting arm 6 located below the heddle frames. The input gear set 5 provides power to the opening power set 3 and the heddle-lifting power set 4. The opening power set 3 is connected to the front heddle frame 1 via a... Figure 1 The transition structure 10 shown is used to realize the left and right movement of the front heddle frame 1 (the transition structure 10 can realize both up-and-down and left-and-right movement of the front heddle frame 1, which is an existing structure). The heddle lifting power unit 4 is connected to the heddle lifting rods 7. The two heddle lifting rods 7 extend to the bottom of the front heddle frame 1 and the rear heddle frame 2 respectively, and are used to drive the T-shaped connector 9 and the L-shaped connector 8 to rotate back and forth. The rotation of the T-shaped connector 9 and the L-shaped connector 8 drives the front heddle frame 1 and the rear heddle frame 2 to move up and down through the heddle lifting arm 6.

[0056] like Figure 6 As shown, the input gear set 5, the open-end power set 3, and the hoisting power set 4 are integrated into one housing. Figures 7 to 10 As shown, the heddle power unit 4 includes a heddle input shaft 401 and a mounting shaft 402. An input gear set 5 outputs power to the heddle input shaft 401. Both ends of the heddle input shaft 401 are rotatably connected to the housing via bearings. Both ends of the mounting shaft 402 are fixed to the housing. Two heddle-starting common weft cam sets 403 are fixed on the heddle input shaft 401. The heddle-starting common weft cam sets 403 include cam one 4031 and cam two 4032. The mounting shaft 402 is connected to the heddle-starting common weft cam sets 403 via bearings. 3. Two corresponding heddle-starting swing arms 405 are provided on each heddle-starting swing arm 405. Roller 406, which cooperates with cam 4031, and roller 407, which cooperates with cam 4032, are provided on each heddle-starting swing arm 405. Cam 4031 pushes roller 406 to make heddle-starting swing arm 405 swing to the left around mounting shaft 402. Cam 4032 pushes roller 407 to make heddle-starting swing arm 405 swing to the right around mounting shaft 402. The upper end of heddle-starting swing arm 405 is rotatably connected to heddle-starting connecting rod 701.

[0057] By employing a single-sided heddle-starting swing arm 405 in conjunction with a heddle-starting common weft cam group 403, and through the design of the cam shape, the heddle-starting swing arm 405 can swing back and forth 3 times for one rotation. Compared with existing rapier looms, the power can be increased by 3 times, greatly improving production efficiency.

[0058] The fixing structure between the two ends of the mounting shaft 402 and the housing is as follows: Figure 7 As shown, the connection between the housing and the mounting shaft 402 is integrally formed with an externally protruding shaft hole 408. The side wall of the externally protruding shaft hole 408 is provided with a screw hole and a tightening bolt 409 is threadedly connected. The end of the mounting shaft 402 can pass through the externally protruding shaft hole 408, and the mounting shaft 402 is fixed by tightening the tightening bolt 409.

[0059] To achieve adjustable clearance between the heddle arm 405 and the heddle common weft cam assembly 403, such as Figures 8 to 10 As shown, the hoisting power unit 4 includes a bushing 410 and a clamp 411. The bushing 410 is fitted onto the mounting shaft 402. The bushing 410 includes an eccentric section 4101 and a locking section 4102. The locking section 4102 is divided into several pieces along the circumference. The clamp 411 is located on the outer wall of the locking section 4102. By closing the locking section 4102 with the clamp 411, the bushing 410 is fixed to the mounting shaft 402. The hoisting swing arm 405 is mounted on the outer wall of the eccentric section 4101 by a bearing. When adjusting the clearance, loosen the tightening bolt 409 to allow the mounting shaft 402 to rotate relative to the housing. Hold the heddle-starting swing arm 405 firmly with one hand, and apply rotational force to the mounting shaft 402 with the other. The rotation of the mounting shaft 402 causes the bushing 410 to rotate. Since the heddle-starting swing arm 405 and the bushing 410 are connected by a bearing, the rotation of the eccentric section 4101 of the bushing 410 causes a change in the position of the heddle-starting swing arm 405, thereby altering the clearance between the heddle-starting swing arm 405 and the heddle-starting common weft cam assembly 403. This allows for changing the swing speed of the heddle-starting swing arm 405, enabling switching between different fabric weaving modes such as cross-weaving, twill weaving, and plain weaving on the rapier loom without disassembling or replacing the cam. Furthermore, since the clearance between the heddle-starting swing arm 405 and the heddle-starting common weft cam is adjustable, disassembly of the heddle-starting common weft cam assembly 403 is convenient when the clearance is adjusted to its maximum.

[0060] To facilitate the screwing of the mounting shaft 402, this embodiment also provides a screwing structure 404 on the end face of the mounting shaft 402 to facilitate the rotation of the shaft, such as an internal hexagon, external hexagon, slotted, or cross-shaped screw, etc. Figure 9 As shown, this embodiment uses an external hexagonal screw-on structure 404.

[0061] like Figures 14 to 16As shown, the opening power unit 3 includes an opening input shaft 301, an opening swing arm shaft 302, a transmission rod 303, and a left-right moving rod 304. The input gear set 5 outputs power to the opening input shaft 301. Both ends of the opening input shaft 301 and the opening swing arm shaft 302 are supported on the housing by bearings. An opening common weft cam set 305 is fixed on the opening input shaft 301. The opening common weft cam set 305 includes cam three 3051 and cam four 3052. An opening swing arm is fixed on the opening swing arm shaft 302. The opening swing arm is provided with roller three 306 that cooperates with cam three 3051 and roller four 307 that cooperates with cam four 3052. Cam three 3051 pushes roller three 306 to make the opening swing arm swing to the right around the opening swing arm shaft 302. Cam four 3052 pushes roller four 307 to make the opening swing arm swing to the left around the opening swing arm shaft 302. The two ends of the transmission rod 303 are respectively rotatably connected to the upper end of the open swing arm and one end of the left-right moving rod 304, and the other end of the left-right moving rod 304 is connected via, for example, Figure 1 The transition structure shown connects to the front frame 1. The housing is provided with a limit structure to restrict the left and right moving rod 304 to move only left and right.

[0062] like Figure 14 As shown, the limiting structure includes a mounting plate fixed to the box body. The mounting plate is provided with a plurality of rollers 308 arranged in the left and right direction. The rod body of the left and right moving rod 304 is provided with an elongated hole 309 arranged in the left and right direction. The plurality of rollers 308 can be precisely embedded in the elongated hole 309.

[0063] like Figure 16 As shown, the open-end swing arm includes an L-shaped swing arm 310 and a clamp 311. One side of the clamp 311 is rotatably connected to one end of the transmission rod 303. A vertical hole 312 is provided on the clamp 311, and the upper end of the L-shaped swing arm 310 can be inserted upward into the vertical hole 312. A clamping bolt 313 for clamping the upper end of the L-shaped swing arm 310 is threadedly connected to the side wall of the vertical hole 312. By loosening the clamping bolt 313, the depth of the L-shaped swing arm 310 inserted into the vertical hole 312 can be adjusted vertically to change the length of the open-end swing arm, thereby changing the speed of the left and right moving rods in the left and right directions, and realizing different weaving patterns of the loom.

[0064] like Figure 7 and Figure 14As shown, the input gear set 5 includes a main input shaft 501, an input bevel gear 502, a second main input shaft 503, a second input bevel gear 504, a first transmission gear 505, a second transmission gear 506, a first synchronous pulley 507, and a second synchronous pulley 508. Both ends of the main input shaft 501 and the second main input shaft 503 are supported on the housing by bearings. The first input bevel gear 502 is fixed to the main input shaft 501, and the second input bevel gear 504 is fixed to the second main input shaft 503 and meshes with the first input bevel gear 502. The first transmission gear 505 is fixed to the second main input shaft 503, and the second transmission gear 506 is fixed to the heddle input shaft 401 and meshes with the first transmission gear 505. The first synchronous pulley 507 is fixed to the second main input shaft 503, and the second synchronous pulley 508 is fixed to the open input shaft 301. The first synchronous pulley 507 and the second synchronous pulley 508 are driven by a synchronous belt.

[0065] Power is input from the main input shaft 501, passing sequentially through input bevel gear 502, input bevel gear 504, main input shaft 503, transmission gear 505, and transmission gear 506, reaching the heddle input shaft 401. This drives the heddle common weft cam assembly 403 to rotate, thereby causing the two heddle swing arms 405 to swing back and forth. Power is also input from the main input shaft 501, passing sequentially through input bevel gear 502, input bevel gear 504, main input shaft 503, synchronous pulley 507, synchronous belt, and synchronous pulley 508, reaching the open input shaft 301. This drives the open common weft cam assembly 305 to rotate, thereby causing the left-right moving rod 304 to move back and forth left and right through the open swing arms.

[0066] like Figures 11 to 13As shown, the L-shaped connector 8 includes two free ends 802 and 803, and a right-angle end 801, wherein the right-angle end 801 is rotatably connected to the frame. The T-shaped connector 9 includes three free ends 901, 902, and 903, and a center node 904, wherein the center node 904 is rotatably connected to the frame. There are multiple heddle-lifting arms 6. The lower end of the heddle-lifting arm 6 located at the T-shaped connector 9 is rotatably connected to the middle free end 902 of the T-shaped connector 9. The lower end of the heddle-lifting arm 6 located at the L-shaped connector 8 is rotatably connected to the upper free end 802 of the L-shaped connector 8. The upper end of the heddle-lifting arm 6 is rotatably connected to the lower edge of the heddle frame. The heddling rod 7 includes a heddling connecting rod 701, a heddling end rod 702, and a heddling marker rod 703. One end of the heddling connecting rod 701 is rotatably connected to the upper end of the heddling swing arm 405, and the other end is rotatably connected to the upper free end 901 of the T-shaped connector 9. The heddling end rod 702 is located between the T-shaped connector 9 and the L-shaped connector 8, and its two ends are rotatably connected to the lower free end 903 of the T-shaped connector 9 and the lower free end 803 of the L-shaped connector 8, respectively. The heddling marker rod 703 is located between two adjacent L-shaped connectors 8, and its two ends are rotatably connected to the lower free end 803 of the L-shaped connector 8, respectively. The helical linkage 701, helical end rod 702, and helical marker rod 703 each include a rod portion, screws 704 located at both ends of the rod portion, nut blocks 705 located at both ends of the rod portion, and locking nuts 706. The end faces of both ends of the rod portion are provided with internal threaded holes. One end of the screw 704 can be screwed into the internal threaded hole of the rod end and locked with the locking nut 706. The other end of the screw 704 can be screwed into the nut block 705 and locked with the locking nut 706. The end of the locking nut 706 away from the screw 704 is used for rotatable connection with the L-shaped connector 8, the T-shaped connector 9, or the output end of the power box.

[0067] The heald bar 7 is disassembled from a single integral member into multiple independent members. In case of a malfunction, the corresponding faulty member can be removed without disassembling the entire loom, simplifying maintenance. Furthermore, the connection method between the screw 704 and the locking nut 706 facilitates adjustments by maintenance personnel.

[0068] The above embodiments are only used to explain the concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. A high-speed rapier loom, comprising a machine frame, a power box, a lifting lever, a lifting arm and two front and back shedding frames, characterized in that: a T-shaped connecting piece and an L-shaped connecting piece are included, the L-shaped connecting piece comprises two free ends and a right-angle end, wherein the right-angle end is rotatably connected with the machine frame, the T-shaped connecting piece comprises three free ends and a center node, wherein the center node is rotatably connected with the machine frame; the lifting arm is provided in plurality, the lower end of the lifting arm located at the T-shaped connecting piece is rotatably connected with the middle free end of the T-shaped connecting piece, the lower end of the lifting arm located at the L-shaped connecting piece is rotatably connected with the upper free end of the L-shaped connecting piece, and the upper end of the lifting arm is rotatably connected with the lower edge of the shedding frame; the lifting lever comprises a lifting connecting rod, a lifting end rod and a lifting marker rod, one end of the lifting connecting rod is rotatably connected with the output end of the power box, the other end is rotatably connected with the upper free end of the T-shaped connecting piece, the lifting end rod is located between the T-shaped connecting piece and the L-shaped connecting piece, and the two ends are rotatably connected with the lower free end of the T-shaped connecting piece and the lower free end of the L-shaped connecting piece, respectively, and the lifting marker rod is located between two adjacent L-shaped connecting pieces, and the two ends are rotatably connected with the lower free end of the L-shaped connecting piece. the lifting connecting rod, the lifting end rod and the lifting marker rod all comprise a rod part, a screw rod located at both ends of the rod part, a nut block located at both ends of the rod part and a locking nut, an inner screw hole is formed in the end face of both ends of the rod part, one end of the screw rod can be screwed into the inner screw hole of the rod end and locked by the locking nut, the other end of the screw rod can be screwed into the nut block and locked by the locking nut, and the end of the locking nut away from the screw rod is used for rotatable connection with the L-shaped connecting piece or the T-shaped connecting piece or the output end of the power box. the power box comprises a box body, an input gear set and a lifting power set are arranged in the box body, the lifting power set comprises a lifting input shaft and a mounting shaft, the input gear set outputs power to the lifting input shaft, the two ends of the lifting input shaft are rotatably connected with the box body through bearings, the two ends of the mounting shaft are fixed with the box body, two lifting common weft cam sets are fixed on the lifting input shaft, the lifting common weft cam set comprises a cam one and a cam two, two lifting swing arms corresponding to the lifting common weft cam set are connected with the mounting shaft through bearings, a roller one matched with the cam one and a roller two matched with the cam two are arranged on the lifting swing arm, the cam one pushes the roller one to make the lifting swing arm swing to the left around the mounting shaft, and the cam two pushes the roller two to make the lifting swing arm swing to the right around the mounting shaft; the upper end of the lifting swing arm is rotatably connected with the lifting connecting rod.

2. A high speed rapier loom as claimed in claim 1, characterized in that, an outer convex shaft hole is integrally formed at the connection between the box body and the mounting shaft, a screw hole is arranged in the side wall of the outer convex shaft hole and a jacking bolt is threadedly connected with the screw hole, the end of the mounting shaft can pass through the outer convex shaft hole and is fixed by rotating the jacking bolt; 3. A high speed rapier loom as claimed in claim 1, characterized in that, a shaft sleeve and a clamp are included, the shaft sleeve is sleeved on the mounting shaft, the shaft sleeve comprises an eccentric section and a locking section, the locking section is divided into several pieces along the circumference, the clamp is arranged at the outer wall of the locking section, the locking section is closed by the clamp to fix the shaft sleeve with the mounting shaft, and the lifting swing arm is installed at the outer wall of the eccentric section through a bearing.

4. A high speed rapier loom as claimed in claim 3, characterized in that, ​ ​ 5. A high speed rapier loom as claimed in claim 4, characterized in that, The end surface of the mounting shaft is provided with a screw structure for facilitating rotation of the shaft body.

6. A high speed rapier loom as claimed in claim 3, characterized in that, The box is provided with an open power set, which comprises an open input shaft, an open swing arm shaft, a transmission rod and left-right moving rods, an input gear set outputs power to the open input shaft, both ends of the open input shaft and the open swing arm shaft are supported on the box through bearings, the open input shaft is fixed with an open common weft cam set, the open common weft cam set comprises cam three and cam four, the open swing arm shaft is fixed with an open swing arm, the open swing arm is provided with roller three matched with cam three and roller four matched with cam four, cam three drives roller three to swing the open swing arm to the right around the open swing arm shaft, and cam four drives roller four to swing the open swing arm to the left around the open swing arm shaft. Both ends of the transmission rod are rotatably connected with the upper end of the open swing arm and one end of the left-right moving rods, and the other end of the left-right moving rods is used for connecting the front heald frame, the box is provided with a limiting structure for limiting the left-right moving rods to move leftward and rightward.

7. A high speed rapier loom as claimed in claim 6, characterized in that, The limiting structure comprises a mounting plate fixed with the box, a plurality of left-right arranged rollers five are arranged on the mounting plate, the left-right moving rod is provided with a left-right arranged long circular hole, and the plurality of rollers five can be embedded in the long circular hole.

8. A high speed rapier loom as claimed in claim 6, characterized in that, The open swing arm comprises an L-shaped swing arm and a sleeve, one side of the sleeve is rotatably connected with one end of the transmission rod, a vertical hole is formed in the sleeve, the upper end of the L-shaped swing arm can be inserted into the vertical hole, and the side wall of the vertical hole is threadedly connected with a clamping bolt for clamping the upper end of the L-shaped swing arm.

9. A high speed rapier loom as claimed in claim 6, characterized in that, The input gear set comprises a total input shaft one, an input bevel gear one, a total input shaft two, an input bevel gear two, a transmission gear one, a transmission gear two, a synchronous wheel one and a synchronous wheel two. Both ends of the total input shaft one and the total input shaft two are supported on the box through bearings, the input bevel gear one is fixed on the total input shaft one, the input bevel gear two is fixed on the total input shaft two and meshes with the input bevel gear one, the transmission gear one is fixed on the total input shaft two, and the transmission gear two is fixed on the heald input shaft and meshes with the transmission gear one. The synchronous wheel one is fixed on the total input shaft two, the synchronous wheel two is fixed on the open input shaft, and the synchronous wheel one and the synchronous wheel two are driven through a synchronous belt.

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