A rapier drive for a rapier loom

Abstract

The utility model discloses a kind of rapier drive devices of rapier loom, it is related to rapier loom technical field, including machine base, the top end side of the machine base is fixedly connected with first motor, the output of the first motor is fixedly connected with first belt pulley, the first belt pulley is driven connection with second belt pulley by transmission belt, the side of the second belt pulley is fixedly connected with transmission shaft, the side of the machine base away from first motor is fixedly connected with fixed frame, the side of the fixed frame is equipped with power component. The utility model adopts above-mentioned structure, by setting pressure belt wheel, elastic component, make elastic contact between pressure belt wheel and transmission belt, when loom high-speed operation, vibration is generated when belt due to periodic tensioning force change, spring will occur elastic deformation, avoid vibration directly transmission to pressure belt wheel, to reduce the friction of the contact surface of both, reduce the wear deformation of pressure belt wheel surface, also prolong the service life of transmission belt simultaneously.

Description

Technical Field

[0001] This utility model belongs to the technical field of rapier looms, and specifically relates to a rapier drive device for a rapier loom. Background Technology

[0002] The rapier loom is a mainstream shuttleless loom widely used in the weaving of various fiber fabrics such as cotton, wool, silk, linen, and chemical fibers. Its core working principle is to complete the weft insertion action through the rapier. When the loom is running, the two rapiers move towards each other from both sides of the loom. The feed rapier carries the weft yarn into the weft hole from one side of the loom and intersects with the receiving rapier at the center of the weft hole. Then the receiving rapier pulls the weft yarn to the other side, thereby realizing the insertion of the weft yarn into the warp yarn. Combined with the shedding movement of the warp yarn and the beat-up action, the fabric is finally formed.

[0003] Rapier loom drive systems typically employ motors, pulleys, and belt drives. To ensure stable belt drive, current technology usually uses a pressure pulley to press against the belt. However, the pressure pulley and belt have a rigid contact. When the loom is running at high speed, the vibration of the belt caused by periodic tension changes is directly transmitted to the pressure pulley, leading to increased friction on the contact surfaces and causing wear and deformation of the pressure pulley surface. Furthermore, the fixed installation position of the pressure pulley makes it impossible to adjust its position according to the wear level, tension, or power requirements of the belt under different weaving conditions, making it difficult to flexibly adjust the belt tension. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a rapier drive device for a rapier loom to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A rapier drive device for a rapier loom includes a base. A first motor is fixedly connected to one side of the top of the base. A first pulley is fixedly connected to the output end of the first motor. A second pulley is driven by a transmission belt through the first pulley. A drive shaft is fixedly connected to one side of the second pulley. A fixed frame is fixedly connected to the side of the base away from the first motor. A power component is provided on one side of the fixed frame. A lifting plate is slidably connected to one side of the fixed frame through the power component. There are two lifting plates. A belt pressing mechanism is provided on one side of the lifting plate. One side of the belt pressing mechanism is in contact with one side of the transmission belt.

[0007] As a preferred technical solution, the power assembly includes a second motor, which is fixedly connected to one side of the fixed frame. A first gear is fixedly connected to the output end of the second motor. A second gear is meshed with one side of the first gear. A lead screw is fixedly connected to one side of the second gear. The lead screw is rotatably connected inside the fixed frame. One side of the lifting plate is threadedly connected to the lead screw.

[0008] As a preferred technical solution, the fixed frame has a sliding groove inside, the lead screw is rotatably connected inside the sliding groove, one side of the lifting plate is slidably connected inside the sliding groove, and limit grooves are opened on both sides of the sliding groove. Limit blocks are slidably connected inside the limit grooves, and one side of the lifting plate is fixedly connected to one side of the limit block.

[0009] As a preferred technical solution, the belt pressing mechanism includes a fixed seat, which is fixedly connected to one side of the lifting plate. An elastic component is provided on one side of the fixed seat, and a belt pressing wheel is provided on one side of the elastic component. One side of the belt pressing wheel is in contact with one side of the conveyor belt through the elastic component.

[0010] As a preferred technical solution, the elastic component includes an assembly block, which is fixedly connected to one side of the pressure roller. A slide rod is fixedly connected to both sides of one end of the assembly block. A fixing plate is fixedly connected to both sides of the fixing seat. One side of the slide rod slides through the fixing plate. A spring is fixedly connected to both sides of one end of the fixing plate. A sliding plate is fixedly connected to the side of the spring away from the fixing plate. One side of the sliding plate is fixedly connected to one side of the slide rod.

[0011] In summary, the present invention has the following main advantages:

[0012] First, this utility model, by setting up a pressure roller and an elastic component, makes elastic contact between the pressure roller and the conveyor belt. When the loom is running at high speed and the belt vibrates due to the periodic changes in tension, the spring will undergo elastic deformation, preventing the vibration from being directly transmitted to the pressure roller, thereby reducing the friction between the two contact surfaces, reducing the wear and deformation of the pressure roller surface, and also extending the service life of the conveyor belt.

[0013] Secondly, this utility model, by setting a power component, the second motor drives the first gear to rotate, the first gear drives the second gear and the lead screw to rotate, so that the lifting plate slides in the slide groove, thereby driving the pressing mechanism to move up and down, realizing flexible adjustment of the pressing wheel position. It can accurately adjust the pressing force of the pressing wheel on the conveyor belt according to the wear degree, tension state of the belt or the power requirements under different weaving conditions. In addition, when maintaining and replacing the conveyor belt, the pressing wheel can be moved away without affecting the maintenance of the conveyor belt. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of one side of the fixing frame of this utility model;

[0016] Figure 3 This is a utility model Figure 1 A magnified structural diagram at point A;

[0017] Figure 4 This is a utility model Figure 1 A magnified structural diagram at point B.

[0018] Reference numerals: 1. Base; 2. First motor; 3. First pulley; 4. Conveyor belt; 5. Second pulley; 6. Drive shaft; 7. Fixed frame; 8. Lifting plate; 9. Power assembly; 91. Second motor; 92. First gear; 93. Second gear; 94. Lead screw; 10. Slide groove; 11. Limiting groove; 12. Limiting block; 13. Pressing belt mechanism; 131. Fixed seat; 132. Pressing roller; 133. Elastic component; 1331. Assembly block; 1332. Slide rod; 1333. Slide plate; 1334. Spring; 1335. Fixed plate. Detailed Implementation

[0019] Example

[0020] refer to Figures 1 to 4 The rapier drive device for a rapier loom described in this embodiment includes a base 1. A first motor 2 is fixedly connected to one side of the top of the base 1. A first pulley 3 is fixedly connected to the output end of the first motor 2. A second pulley 5 is driven by a transmission belt 4 to the first pulley 3. A transmission shaft 6 is fixedly connected to one side of the second pulley 5. A fixed frame 7 is fixedly connected to the side of the base 1 away from the first motor 2. A power component 9 is provided on one side of the fixed frame 7. A lifting plate 8 is slidably connected to one side of the fixed frame 7 through the power component 9. There are two lifting plates 8. A belt pressing mechanism 13 is provided on one side of the lifting plate 8. One side of the belt pressing mechanism 13 is in contact with one side of the transmission belt 4.

[0021] refer to Figure 4The power assembly 9 includes a second motor 91, which is fixedly connected to one side of the fixed frame 7. A first gear 92 is fixedly connected to the output end of the second motor 91. A second gear 93 is meshed with one side of the first gear 92. A lead screw 94 is fixedly connected to one side of the second gear 93. The lead screw 94 is rotatably connected inside the fixed frame 7. One side of the lifting plate 8 is threadedly connected to the lead screw 94. By setting the power assembly 9, the second motor 91 drives the first gear 92 to rotate, the first gear 92 drives the second gear 93 to rotate, and the second gear 93 drives the lead screw 94 to rotate inside the fixed frame 7. When the lead screw 94 rotates, the lifting plate 8 slides along the axial direction of the lead screw 94 inside the fixed frame 7 to achieve position adjustment, thereby driving the belt pressing mechanism 13 to move closer to or away from the conveyor belt 4 to meet the belt tension requirements under different working conditions.

[0022] refer to Figure 4 The fixed frame 7 has a sliding groove 10 inside, the lead screw 94 is rotatably connected inside the sliding groove 10, one side of the lifting plate 8 is slidably connected inside the sliding groove 10, and limit grooves 11 are opened on both sides of the sliding groove 10. Limit blocks 12 are slidably connected inside the limit grooves 11, and one side of the lifting plate 8 is fixedly connected to one side of the limit block 12. By setting the sliding groove 10, the movement trajectory of the lifting plate 8 is constrained to prevent it from deviating from the preset direction. The limit grooves 11 on both sides of the sliding groove 10 are slidably engaged with the limit blocks 12 on the lifting plate 8. When the lifting plate 8 moves, the limit blocks 12 slide synchronously along the limit grooves 11, further limiting the displacement of the lifting plate 8.

[0023] refer to Figure 3 The belt pressing mechanism 13 includes a fixed base 131, which is fixedly connected to one side of the lifting plate 8. An elastic component 133 is provided on one side of the fixed base 131, and a belt pressing wheel 132 is provided on one side of the elastic component 133. One side of the belt pressing wheel 132 is in contact with one side of the conveyor belt 4 through the elastic component 133. By setting the belt pressing mechanism 13, when the lifting plate 8 moves, it drives the fixed base 131 to move. The elastic component 133 on one side of the fixed base 131 keeps the belt pressing wheel 132 in contact with the conveyor belt 4, always maintaining close contact with the belt, while avoiding rigid collision.

[0024] refer to Figure 3The elastic component 133 includes an assembly block 1331, which is fixedly connected to one side of the pressure roller 132. Slide rods 1332 are fixedly connected to both sides of one end of the assembly block 1331. Fixing plates 1335 are fixedly connected to both sides of the fixing seat 131. One side of the slide rod 1332 slides through the fixing plate 1335. Springs 1334 are fixedly connected to both sides of one end of the fixing plate 1335. A sliding plate 1 is fixedly connected to the side of the spring 1334 away from the fixing plate 1335. 333, one side of the slide plate 1333 is fixedly connected to one side of the slide rod 1332; when the pressure pulley 132 is subjected to the reaction force of the belt, the slide rod 1332 slides along the through hole of the fixed plate 1335, driving the slide plate 1333 to move synchronously. The spring 1334 on the fixed plate 1335 is compressed or stretched as the slide plate 1333 moves, and the spring 1334 deforms and produces elastic contact. It should be noted that a damper can also be provided on the inner side of the spring 1334, which can further consume vibration energy and reduce the reciprocating transmission of vibration.

[0025] Operating principle and advantages: The second motor 91 drives the first gear 92 to rotate, and the first gear 92 drives the second gear 93 to rotate, causing the second gear 93 to drive the lead screw 94 to rotate inside the fixed frame 7. Since the lifting plate 8 is threadedly connected to the lead screw 94, when the lead screw 94 rotates, the lifting plate 8 slides along the slide groove 10 inside the fixed frame 7. The slide groove 10 provides a motion trajectory constraint for the lifting plate 8. At the same time, the limit blocks 12 in the limit grooves 11 on both sides of the slide groove 10 slide synchronously with the lifting plate 8, further limiting the offset of the lifting plate 8 and ensuring the smooth movement of the lifting plate 8. This achieves the position adjustment of the lifting plate 8, meeting the belt tension requirements under different working conditions. When moving, the belt pressing mechanism 13 moves synchronously. The fixed seat 131 of the belt pressing mechanism 13 moves with the lifting plate 8. The elastic component 133 on one side of the fixed seat 131 makes the belt pressing wheel 132 fit tightly with the conveyor belt 4. When the belt pressing wheel 132 is subjected to the reaction force of the belt, the sliding rods 1332 on both sides of the assembly block 1331 slide along the through holes of the fixed plate 1335, driving the sliding plate 1333 to move, so that the spring 1334 on the fixed plate 1335 is compressed or stretched, realizing the elastic contact between the belt pressing wheel 132 and the belt, reducing the friction of the contact surface between the two, reducing the wear and deformation of the surface of the belt pressing wheel 132, and also extending the service life of the conveyor belt 4.

Claims

1. A rapier drive device for a rapier loom, comprising a base (1), characterized in that: A first motor (2) is fixedly connected to one side of the top of the base (1). A first pulley (3) is fixedly connected to the output end of the first motor (2). The first pulley (3) is connected to a second pulley (5) via a transmission belt (4). A transmission shaft (6) is fixedly connected to one side of the second pulley (5). A fixed frame (7) is fixedly connected to the side of the base (1) away from the first motor (2). A power component (9) is provided on one side of the fixed frame (7). A lifting plate (8) is slidably connected to one side of the fixed frame (7) via the power component (9). There are two lifting plates (8). A belt pressing mechanism (13) is provided on one side of the lifting plate (8). One side of the belt pressing mechanism (13) is in contact with one side of the transmission belt (4).

2. The rapier drive device for a rapier loom according to claim 1, characterized in that: The power assembly (9) includes a second motor (91), which is fixedly connected to one side of the fixed frame (7). The output end of the second motor (91) is fixedly connected to a first gear (92). A second gear (93) is meshed with one side of the first gear (92). A lead screw (94) is fixedly connected to one side of the second gear (93). The lead screw (94) is rotatably connected inside the fixed frame (7). One side of the lifting plate (8) is threadedly connected to the lead screw (94).

3. The rapier drive device for a rapier loom according to claim 2, characterized in that: The fixed frame (7) has a sliding groove (10) inside, the lead screw (94) is rotatably connected inside the sliding groove (10), and one side of the lifting plate (8) is slidably connected inside the sliding groove (10).

4. The rapier drive device for a rapier loom according to claim 3, characterized in that: Limiting grooves (11) are provided on both sides of the inner side of the slide (10). A limiting block (12) is slidably connected inside the limiting groove (11). One side of the lifting plate (8) is fixedly connected to one side of the limiting block (12).

5. The rapier drive device for a rapier loom according to claim 1, characterized in that: The belt pressing mechanism (13) includes a fixed seat (131), which is fixedly connected to one side of the lifting plate (8). An elastic component (133) is provided on one side of the fixed seat (131), and a belt pressing wheel (132) is provided on one side of the elastic component (133). One side of the belt pressing wheel (132) is in contact with one side of the conveyor belt (4) through the elastic component (133).

6. The rapier drive device for a rapier loom according to claim 5, characterized in that: The elastic component (133) includes an assembly block (1331), which is fixedly connected to one side of the pressure roller (132), and slide rods (1332) are fixedly connected to both sides of one end of the assembly block (1331).

7. The rapier drive device for a rapier loom according to claim 6, characterized in that: The fixed base (131) is fixedly connected to both sides of the fixed plate (1335). One side of the slide rod (1332) slides through the fixed plate (1335). One end of the fixed plate (1335) is fixedly connected to both sides of the fixed plate (1334). The side of the spring (1334) away from the fixed plate (1335) is fixedly connected to the slide plate (1333). One side of the slide plate (1333) is fixedly connected to one side of the slide rod (1332).

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