Needle lifting mechanism of jacquard

Abstract

The utility model relates to the technical field of jacquard machines, in particular to a needle lifting mechanism of a jacquard machine, which comprises two symmetrical fixing shells, two ends of two opposite side surfaces of the fixing shells are both rotatably connected with turntables, two sides of the fixing shells are both provided with fixing plates, a dust collection mechanism is arranged between the interiors of the two fixing shells, and the dust collection mechanism is connected with the turntables. Two symmetrical rotating shafts are rotationally connected to one side face of the rotating disc and located on one side of the circle center of the rotating disc, and connecting rods detachably connected with the rotating shafts at the corresponding positions are rotationally connected to the two ends of one side face of the fixing plate through connecting shafts correspondingly. According to the utility model, the connecting rods are arranged on the rotating shafts at different positions on the turntable, so that the size of a shed of a yarn can be changed, and a worker can conveniently adjust the shed according to the thickness of the yarn, so that the situation that the yarn is broken due to the contact between the shuttle and the yarn in the flying process can be avoided; and the yarn end breakage rate caused by an overlarge shed can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of jacquard machine technology, specifically a jacquard machine needle lifting mechanism. Background Technology

[0002] A jacquard loom is a textile processing device used to create patterns. The creation of patterns requires alternating warp threads in two layers according to certain rules, forming a channel for the weft threads to pass through, which is called the warp shed. After the weft threads are introduced into the shed, the two layers of warp threads alternate according to the fabric structure to form a new warp shed. This process is repeated to complete the weaving process of the fabric. The formation of the warp shed is completed by the needle lifting mechanism and is the most crucial step in textile technology.

[0003] Currently, existing jacquard machines typically use an eccentric turntable to drive the jacquard needles up and down through a connecting rod to form the warp shed. However, since the position of the connecting rod on the turntable is fixed, the size of the warp shed is also fixed. For some thicker yarns, during the weaving process, there will be contact between the shuttle and the warp, which will cause friction and lead to warp breakage. Although the shed can be adjusted to its maximum size to avoid contact between the shuttle and the warp, an excessively large shed will increase the breakage rate of the warp. Utility Model Content

[0004] The purpose of this invention is to provide a needle lifting mechanism for a jacquard machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A jacquard machine's needle-lifting mechanism includes two symmetrical fixed shells. Turntables are rotatably connected to both ends of the opposite sides of each fixed shell. Fixed plates are provided on both sides of each fixed shell. A dust-collecting mechanism is located between the interiors of the two fixed shells. Two symmetrical rotating shafts are rotatably connected to one side of each turntable, specifically to the side at its center. Connecting rods, detachably connected to the corresponding rotating shafts, are rotatably connected to both ends of one side of each fixed plate via connecting shafts. Multiple C-shaped plates (first type) are fixedly connected at equal intervals between the two fixed plates located between the two fixed shells. Multiple C-shaped plates (second type) are fixedly connected at equal intervals between the two fixed plates located on the outer sides of the two fixed shells. The C-shaped plates (first type) and C-shaped plates (second type) are staggered. A plurality of jacquard needles are fixedly connected to the bottom surface of both C-shaped plates (first type) and C-shaped plates (second type).

[0007] Furthermore, one end of the rotating shaft is fixedly connected to a mounting block one, and one end of the connecting shaft is fixedly connected to a mounting block two. The mounting block two and the mounting block one at the corresponding position are fastened together by bolts.

[0008] Furthermore, the two axes of rotation at relatively opposite positions share the same center but have different radii.

[0009] Furthermore, a rotating rod is fixedly connected between two turntables located at the same end of the fixed shell, and the rotating rod is rotatably connected to the fixed shell at the corresponding position. A first synchronous pulley is fixedly connected to the outer wall of the rotating rod. Two symmetrical connecting rods are rotatably connected between the two opposite sides inside the fixed shell. A second synchronous pulley is fixedly connected to the outer wall of the connecting rod and is driven by a synchronous belt to the first synchronous pulley at the corresponding position.

[0010] Furthermore, a gear is fixedly connected to one end of the outer wall of the connecting rod, and two gears at opposite positions mesh with each other for transmission. A round rod is fixedly connected between two connecting shafts at opposite positions, and one end of one of the connecting shafts passes through the fixed shell at the corresponding position and is connected to an external motor.

[0011] Furthermore, the top surface of the fixed shell is provided with a rectangular hole, the dust collection mechanism includes two symmetrical rectangular frames that are fixed through the rectangular holes at corresponding positions, a connecting pipe is fixedly connected between the inner top surfaces of the two rectangular frames, a T-shaped pipe is fixedly connected to the outer wall of the connecting pipe, and a conduit is fixedly connected to one end of the T-shaped pipe.

[0012] Furthermore, several through holes are provided at both ends of the two opposite sides of the fixed shell.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By installing the connecting rod on the rotating shaft at different positions on the turntable, the size of the shed of the yarn can be changed so that the operator can adjust it according to the thickness of the yarn. This can prevent the shuttle from contacting the yarn during flight and causing the yarn to break, and can also reduce the yarn breakage rate caused by an excessively large shed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the fixing shell in this utility model;

[0017] Figure 3 This is a schematic diagram of the turntable of this utility model;

[0018] Figure 4 This is a schematic diagram of the fixing plate, connecting rod, and jacquard needle in this utility model;

[0019] Figure 5 This is a schematic diagram of the dust collection mechanism in this utility model.

[0020] In the diagram: 1. Fixed shell; 11. Rectangular hole; 12. Through hole; 2. Turntable; 21. Rotating shaft; 22. Mounting block one; 23. Synchronous pulley one; 24. Synchronous pulley two; 25. Gear; 3. Fixed plate; 31. Connecting rod; 32. Mounting block two; 33. C-shaped plate one; 34. Jacquard needle; 4. Round rod; 5. Dust collection mechanism; 51. Rectangular frame; 52. Connecting pipe; 53. T-shaped pipe; 54. Conduit. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 In this embodiment of the utility model, a jacquard machine needle lifting mechanism includes two symmetrical fixed shells 1. Turntables 2 are rotatably connected to both ends of the opposite sides of the fixed shells 1. Fixed plates 3 are provided on both sides of the fixed shells 1. A dust suction mechanism 5 is provided between the interiors of the two fixed shells 1. Two symmetrical rotating shafts 21 are rotatably connected to one side of the turntable 2 and the side located at its center. Both ends of one side of the fixed plate 3 are rotatably connected to connecting rods 31 that are detachably connected to the rotating shafts 21 at corresponding positions via connecting shafts. Multiple C-shaped plates 33 are fixedly connected at equal intervals between the two fixed plates 3 located between the two fixed shells 1. Multiple C-shaped plates 2 are fixedly connected at equal intervals between the two fixed plates 3 located outside the two fixed shells 1. The C-shaped plates 33 and C-shaped plates 2 are staggered. A number of jacquard needles 34 are fixedly connected to the bottom surface of both the C-shaped plates 33 and C-shaped plates 2.

[0023] Specifically, depending on the thickness of the yarn, if the yarn is thicker, the connecting rod 31 can be installed on the rotating shaft 21 away from the center of the turntable 2; if the yarn is thinner, the connecting rod 31 can be installed on the rotating shaft 21 closer to the center of the turntable 2. This adjusts the size of the warp shed so that the shuttle can pass through normally, reducing the breakage rate of the warp yarn. After the connecting rod 31 is installed, the rotation of the turntable 2 can drive the connecting rod 31 at the corresponding position to move up and down reciprocally. This causes the multiple 33-shaped plates 33 between the two fixed shells 1 to drive the multiple jacquard needles 34 to move up and down reciprocally. Meanwhile, the multiple 33-shaped plates 34 move up and down reciprocally under the action of the turntable 2 at the corresponding positions. Since the 33-shaped plates 33 and the 33-shaped plates 34 are staggered and according to... Figure 1 It can be seen that the C-shaped plate 133 and the C-shaped plate 2 move up and down alternately to form the warp shed.

[0024] Example 1

[0025] like Figure 3 and Figure 4 As shown, in this embodiment, one end of the rotating shaft 21 is fixedly connected to a mounting block 22, and one end of the connecting shaft is fixedly connected to a mounting block 32. The mounting block 32 and the mounting block 22 at the corresponding position are fastened together by bolts. The two rotating shafts 21 at opposite positions have the same center but different radii. The two turntables 2 at the same end of the fixed shell 1 are fixedly connected to a rotating rod that passes through the fixed shell 1 at the corresponding position. The outer wall of the rotating rod is fixedly connected to a synchronous pulley 23. The two symmetrical connecting rods are rotatably connected between the two opposite sides inside the fixed shell 1. The outer wall of the connecting rod is fixedly connected to a synchronous pulley 24 that is driven by a synchronous belt to the synchronous pulley 23 at the corresponding position. One end of the outer wall of the connecting rod is fixedly connected to a gear 25. The two gears 25 at opposite positions mesh with each other for transmission. A round rod 4 is fixedly connected between the two connecting shafts at opposite positions. One end of one of the connecting shafts passes through the fixed shell 1 at the corresponding position and is connected to an external motor.

[0026] In this embodiment, the eight turntables 2 can be driven by an external motor to rotate simultaneously. Since the turntables 2 at both ends of the same fixed housing 1 are driven by the meshing of two gears 25 at corresponding positions, the turntables 2 at both ends of the fixed housing 1 rotate in opposite directions so that the first or second shaped plate can move vertically to prevent deviation. By fixing the first mounting block 22 to the second mounting block 32 at the corresponding position with bolts, it is convenient for the staff to adjust the position of the connecting rod 31 on the turntable 2 according to the thickness of the yarn so as to form a suitable warp shed.

[0027] Example 2

[0028] like Figure 2 and Figure 5 As shown, in this embodiment, a rectangular hole 11 is provided through the top surface of the fixed shell 1. The dust collection mechanism 5 includes two symmetrical rectangular frames 51 that are fixed through the rectangular holes 11 at corresponding positions. A connecting pipe 52 is fixedly connected between the inner top surfaces of the two rectangular frames 51. A three-way pipe 53 is fixedly connected to the outer wall of the connecting pipe 52. A conduit 54 is fixedly connected to one end of the three-way pipe 53. Several through holes 12 are provided through both ends of the two opposite sides of the fixed shell 1.

[0029] In this embodiment, since a large amount of lint is generated during the yarn reweaving process, in order to prevent the lint from affecting the rotation of the turntable 2, the conduit 54 is connected to an external vacuum pump. The operation of the vacuum pump can create a negative pressure inside the two fixed shells 1, which can draw the lint near the turntable 2 into the fixed shell 1, and then remove it through the connecting pipe 52.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A needle-lifting mechanism for a jacquard loom, characterized in that, It includes two symmetrical fixed shells (1), with turntables (2) rotatably connected to both ends of the two opposite sides of the fixed shells (1), and fixed plates (3) provided on both sides of the fixed shells (1). A dust collection mechanism (5) is provided between the interiors of the two fixed shells (1). Two symmetrical rotating shafts (21) are rotatably connected to one side of the turntable (2) and the side located at its center. Both ends of one side of the fixed plate (3) are rotatably connected to connecting rods (31) that are detachably connected to the rotating shafts (21) at the corresponding positions via connecting shafts. Multiple C-shaped plates (33) are fixedly connected at equal intervals between the two fixed plates (3) located between the two fixed shells (1). Multiple C-shaped plates (2) are fixedly connected at equal intervals between the two fixed plates (3) located outside the two fixed shells (1). C-shaped plates (33) and C-shaped plates (2) are staggered from each other. Several jacquard needles (34) are fixedly connected to the bottom surfaces of both C-shaped plates (33) and C-shaped plates (2).

2. The needle lifting mechanism of the jacquard machine according to claim 1, characterized in that, One end of the rotating shaft (21) is fixedly connected to a mounting block 1 (22), and one end of the connecting shaft is fixedly connected to a mounting block 2 (32). The mounting block 2 (32) and the mounting block 1 (22) at the corresponding position are fastened together by bolts.

3. The needle lifting mechanism of the jacquard machine according to claim 2, characterized in that, Two rotating axes (21) at relative positions have the same center but different radii.

4. The needle lifting mechanism of the jacquard machine according to claim 1, characterized in that, Two turntables (2) located at the same end of the fixed shell (1) are fixedly connected to a rotating rod that rotates through the fixed shell (1) at the corresponding position. A synchronous pulley (23) is fixedly connected to the outer wall of the rotating rod. Two symmetrical connecting rods are rotatably connected between the two opposite sides inside the fixed shell (1). A synchronous pulley (24) is fixedly connected to the outer wall of the connecting rod and is driven by a synchronous belt through the synchronous pulley (23) at the corresponding position.

5. The needle lifting mechanism of the jacquard machine according to claim 4, characterized in that, A gear (25) is fixedly connected to one end of the outer wall of the connecting rod. The two gears (25) at opposite positions mesh with each other for transmission. A round rod (4) is fixedly connected between the two connecting shafts at opposite positions. One end of one of the connecting shafts passes through the fixed shell (1) at the corresponding position and is connected to an external motor.

6. The needle lifting mechanism of the jacquard machine according to claim 5, characterized in that, A rectangular hole (11) is provided through the top surface of the fixed shell (1). The dust collection mechanism (5) includes two symmetrical rectangular frames (51) that are fixed through the rectangular holes (11) at corresponding positions. A connecting pipe (52) is fixedly connected between the inner top surfaces of the two rectangular frames (51). A three-way pipe (53) is fixedly connected to the outer wall of the connecting pipe (52). A conduit (54) is fixedly connected to one end of the three-way pipe (53).

7. The needle lifting mechanism of the jacquard machine according to claim 6, characterized in that, Several through holes (12) are provided at both ends of the two opposite sides of the fixed shell (1).

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