Conjugate cam balanced beat-up shaft mechanism

Abstract

The utility model discloses a kind of conjugate cam balance beating-up shaft mechanism, it is related to water-jet loom component technical field, including first fixed wallboard and second fixed wallboard, first beating-up shaft and second beating-up shaft are vertically connected respectively on the opposite side wall of both, first beating-up shaft and second beating-up shaft are mutually close to one end and are connected with cam beating-up component, two cam beating-up components are connected by third beating-up shaft;Each cam beating-up component includes connecting in the swing arm of the both ends of third beating-up shaft, camshaft is equipped below swing arm, the axis of camshaft is parallel with the axis of swing arm, and the side wall of both abuts, each camshaft is connected with first fixed wallboard, second fixed wallboard by transmission shaft, linkage shaft is equipped between each camshaft, above-mentioned conjugate cam balance beating-up shaft mechanism, when the technical problem that the beating-up vibration amplitude is too large in high-speed operation of traditional water-jet loom, beating-up shaft reciprocating motion is easy to cause machine body overall vibration, influence loom beating-up precision.

Description

Technical Field

[0001] This utility model relates to the technical field of water jet loom components, and in particular to a conjugate cam balancing beat-up shaft mechanism. Background Technology

[0002] Currently, water-jet looms on the market use a linkage-based beat-up structure. Whether it's a four-link or six-link beat-up mechanism, the reed seat can only be approximately stationary at the back center position. The reed seat also generates some friction with the warp yarns. The reed seat's motion curve does not meet ideal requirements, resulting in large beat-up fluctuations and a tendency for weft yarn rebound. When the beat-up mechanism operates at high speed, the traditional beat-up shaft vibrates excessively, and the inertial force generated by this motion can easily cause overall machine vibration, thus affecting the loom's weaving precision.

[0003] In summary, developing a weft-beating beam mechanism that can stably spin textiles under conditions of high machine speed and high weft-beating force is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a conjugate cam balancing beat-up shaft mechanism, which solves the technical problem that in traditional water jet looms, the beat-up vibration amplitude is too large when running at high speed, and the reciprocating motion of the beat-up shaft easily causes the overall vibration of the machine body, affecting the beat-up accuracy of the loom.

[0005] To achieve the above objectives, this utility model provides a conjugate cam balancing weft insertion shaft mechanism, comprising:

[0006] The first fixed wall panel and the second fixed wall panel are respectively vertically connected to the first weft insertion shaft and the second weft insertion shaft on their opposite side walls. The ends of the first weft insertion shaft and the second weft insertion shaft that are close to each other are connected to the cam weft insertion assembly. The two cam weft insertion assemblies are connected to each other through the third weft insertion shaft.

[0007] Each cam weft insertion assembly includes a swing arm connected to both ends of the third weft insertion shaft. A camshaft is provided below the swing arm. The axis of the camshaft is parallel to the axis of the swing arm, and the side walls of the two abut against each other. Each camshaft is connected to the first fixed wall plate and the second fixed wall plate through a transmission shaft. A linkage shaft is provided between each camshaft.

[0008] Preferably, the sidewall of the swing arm extends with a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged sequentially along the axial direction of the swing arm, the first clamping plate and the second clamping plate are set at an angle, the first clamping plate and the second clamping plate are specifically two pieces, a first rotor is rotatably provided between the first clamping plates, and a second rotor is rotatably provided between the second clamping plates.

[0009] Preferably, the outer periphery of the camshaft is provided with a main cam and a secondary cam, which are spaced apart. The main cam abuts against the first rotor, and the secondary cam abuts against the second rotor.

[0010] Preferably, both ends of the camshaft are provided with couplings, which are used to connect the drive shaft and the linkage shaft.

[0011] Preferably, both the first fixed wall panel and the second fixed wall panel are provided with rocker shafts, and each rocker shaft is fixedly connected to the first weft insertion shaft and the second weft insertion shaft. The rocker shafts are used to assist the first weft insertion shaft and the second weft insertion shaft in reciprocating swing.

[0012] Preferably, the sidewalls opposite to the first fixed wall panel and the second fixed wall panel are provided with fixed flanges, each fixed flange being located on the outer periphery of each rocker shaft to fix the setting position of each rocker shaft.

[0013] Preferably, two connecting rods are vertically provided on the side walls of the first, second, and third weft insertion shafts, and each connecting rod is used to connect and fix the reed seat.

[0014] Preferably, each of the first clamping plates and each of the second clamping plates has a locking hole on its side wall, and the shafts of the first rotor and the second rotor are connected to the locking holes.

[0015] Preferably, the drive shaft is connected to the output end of the drive component, so that the drive shaft drives each camshaft to rotate.

[0016] Preferably, rolling bearings are provided between each drive shaft, each rocker shaft and the first fixed wall plate and the second fixed wall plate.

[0017] Compared to the aforementioned background technology, the conjugate cam balanced weft insertion shaft mechanism provided by this utility model includes: a first fixed wall plate and a second fixed wall plate for supporting various components, the first fixed wall plate and the second fixed wall plate being arranged in parallel, a first weft insertion shaft and a second weft insertion shaft being respectively connected to their opposite side walls, a cam weft insertion assembly being connected to the ends of the first weft insertion shaft and the second weft insertion shaft that are close to each other, a third weft insertion shaft being connected between the two cam weft insertion assemblies, the cam weft insertion assembly including a swing arm and a cam shaft, the swing arm being connected to both ends of the third weft insertion shaft, and the cam shaft being located on the swing arm. Below, the side wall of the swing arm abuts against the side wall of the camshaft. Each camshaft is connected to the first fixed wall plate and the second fixed wall plate by a drive shaft. A linkage shaft is connected between each camshaft. When the weft insertion operation is performed by this application, the drive shaft receives the driving force and rotates around its own axis. Each camshaft connected by the linkage shaft rotates together with the drive shaft. The rotating camshaft supports the swing arm located above it. Each swing arm drives the first weft insertion shaft, the second weft insertion shaft, and the third weft insertion shaft connected to it to swing back and forth. The weft insertion components on the three shafts drive the warp yarn to perform the weaving operation.

[0018] This application fits the camshaft to the side wall of the swing arm, and drives the swing arm to swing back and forth through the camshaft. When the swing arm is running at high speed, the two fit tightly together to counteract the inertial force generated by the swing arm and prevent the swing arm from causing the whole machine to vibrate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a structural diagram of the conjugate cam balancing weft insertion shaft mechanism provided in an embodiment of the present invention;

[0021] Figure 2 A side view of the conjugate cam balancing weft insertion shaft mechanism provided in an embodiment of this utility model;

[0022] Figure 3 This is a structural diagram of the cam weft insertion assembly provided in an embodiment of the present invention.

[0023] Wherein, 1-first fixed wall panel; 2-second fixed wall panel; 31-first weft insertion shaft; 32-second weft insertion shaft; 33-third weft insertion shaft; 4-cam weft insertion assembly; 41-swing arm; 42-first clamping plate; 43-second clamping plate; 44-first rotor; 45-second rotor; 46-camshaft; 47-main cam; 48-subordinate cam; 5-drive shaft; 6-linkage shaft; 7-rocker shaft; 8-coupling; 9-connecting rod. Detailed Implementation

[0024] 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.

[0025] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This utility model provides a conjugate cam balancing weft insertion shaft mechanism. Please refer to the appendix of the instruction manual. Figure 1 With appendix Figure 2This application includes a first fixed wall plate 1 and a second fixed wall plate 2 arranged in parallel. A first weft insertion shaft 31 and a second weft insertion shaft 32 are respectively connected to the opposite side walls of the first fixed wall plate 1 and the second fixed wall plate 2. A cam weft insertion assembly 4 is connected to the end of the first weft insertion shaft 31 and the second weft insertion shaft 32 that are close to each other. A third weft insertion shaft 33 is connected between the two cam weft insertion assemblies 4. It should be noted that the cam weft insertion assembly 4 includes a swing arm 41 and a cam shaft 46. The cam shaft 46 is located below the swing arm 41. Preferably, the swing arm 41 is connected to both ends of the third weft insertion shaft 33. The third weft insertion shaft 33 synchronizes the movement of each swing arm 41. In addition, the side wall of the swing arm 41 abuts against the side wall of the cam shaft 46. A transmission shaft 5 is connected between each cam shaft 46 and the first fixed wall plate 1 and the second fixed wall plate 2. A linkage shaft 6 is connected between each cam shaft 46. The linkage shaft 6 synchronizes the movement of each cam shaft 46. In one embodiment of this application, the drive shaft 5 receives driving force and rotates around its own axis. Each camshaft 46 connected by the linkage shaft 6 rotates together with the drive shaft 5. The rotating camshaft 46 supports the swing arm 41 located above it. Each swing arm 41 drives the first weft insertion shaft 31, the second weft insertion shaft 32, and the third weft insertion shaft 33 connected to it to swing back and forth. The weft insertion components provided on the three shafts drive the warp yarns to perform weaving operations.

[0027] Please refer to the instruction manual appendix. Figure 3 Each camshaft 46 has a first clamping plate 42 and a second clamping plate 43 extending from its outer wall. There are two first clamping plates 42 and two second clamping plates 43. Each first clamping plate 42 and each second clamping plate 43 is perpendicular to the axis of the rocker arm 41. Preferably, the first clamping plates 42 and the second clamping plates 43 are arranged sequentially along the axis of the rocker arm 41, and the first clamping plate 42 is closer to the first fixed wall plate 1 than the adjacent second clamping plate 43. A first rotor 44 is provided between each first clamping plate 42, and a second rotor 45 is provided between each second clamping plate 43. The first rotor 44 and the second rotor 45 can rotate between each first clamping plate 42 and each second clamping plate 43, respectively. The axes of rotation of the first rotor 44 and the second rotor 45 are perpendicular to the axis of rotation of the rocker arm 41. The axes of the swing arms 41 are parallel. Furthermore, each of the first clamping plates 42 and the second clamping plates 43 has a locking hole on its side wall. Preferably, the inner cavity of the locking hole has a locking slot extending outward. The first rotor 44 and the second rotor 45 include a rotating body and a rotating shaft passing through the rotating body. The diameter of the rotating shaft is slightly larger than the diameter of the locking hole. That is, after the rotating shaft is passed through the locking hole, the rotating shaft is tightened in the locking hole, and the width of the locking slot increases. Preferably, there are connecting blocks on both sides of the locking slot, and fastening bolts are passed between each connecting block. By tightening the fastening bolts, the distance between each connecting block is reduced, that is, the width of the locking slot is reduced. The connecting blocks drive the locking hole to clamp the rotating shaft, so as to prevent the camshaft 46 from holding the rotating body for a long time, which would cause the rotating shaft to shift.

[0028] Preferably, two rotors are provided on a rocker arm 41 and two cams are provided on a camshaft 46. Each main cam 47 and auxiliary cam 48 is located between the angle between the first rotor 44 and the second rotor 45, that is, the first rotor 44 and the second rotor 45 are symmetrically distributed on both sides of the axis of the camshaft 46. The angled arrangement can make the torque generated by the first rotor 44 and the second rotor 45 form a certain torque balance on the rocker arm 41, reducing the lateral load on the bearing of the rocker arm 41. When the cam weft insertion assembly 4 drives the rocker arm 41 to reciprocate, the main cam 47 and the auxiliary cam 48 simultaneously abut against the first rotor 44 and the second rotor 45, so that the rocker arm 41 and the camshaft 46 are more balanced in force during the reciprocating swing, reducing the off-center load, vibration or wear caused by unilateral force, thereby improving the weft insertion accuracy of this application.

[0029] Please continue to refer to the instruction manual appendix. Figure 3 A main cam 47 and a secondary cam 48 are fixedly connected to the outer periphery of the camshaft 46. Preferably, the main cam 47 and the secondary cam 48 are spaced apart. The main cam 47 abuts against the side wall of the first rotor 44, and the secondary cam 48 abuts against the side wall of the second rotor 45. A coupling 8 is provided on both sides of each camshaft 46. The opposite ends of each camshaft 46 are connected to a drive shaft 5 through the coupling 8, and the close ends of each camshaft 46 are connected to a linkage shaft 6 through the coupling 8. The linkage shaft 6 is axially locked with the camshaft 46, the drive shaft 5, and the linkage shaft 6, so that the camshaft 46, the drive shaft 5, and the linkage shaft 6 rotate synchronously. Furthermore, rolling bearings are provided between each drive shaft 5 and the first fixed wall plate 1 and the second fixed wall plate 2. The rolling bearings are used to assist the rotation of the drive shaft 5. Preferably, one end of the drive shaft 5 passes through the first fixed wall plate 1 and is connected to the output end of the drive component. When the weft insertion operation is performed using this application, the operator starts the drive component, and the drive shaft 5 receives the torque output by the drive component. The cam shaft 46 and the linkage shaft 6, which are axially locked to the drive shaft 5, rotate accordingly. The main cam 47 and the auxiliary cam 48 located outside the cam shaft 46 rotate. The outer walls of the main cam 47 and the auxiliary cam 48 support the first rotor 44 and the second rotor 45 located above them, causing the first weft insertion shaft 31, the second weft insertion shaft 32, and the third weft insertion shaft 33 to swing upward. Preferably, the two ends of the side walls of the first weft insertion shaft 31, the second weft insertion shaft 32, and the third weft insertion shaft 33 are provided with connecting rods 9. Each connecting rod 9 is arranged perpendicularly to the cam shaft 46. A reed seat is provided between the connecting rods 9 on the same weft insertion shaft. When the connecting rods 9 swing back and forth, they drive the reed seat to perform the weft insertion operation.

[0030] Please continue to refer to the instruction manual appendix. Figure 1Fixed flanges are provided on the side walls opposite to the first fixed wall plate 1 and the second fixed wall plate 2. A rocker shaft 7 is inserted in each fixed flange. Each rocker shaft 7 is connected to the first weft insertion shaft 31 and the second weft insertion shaft 32 respectively. The connection points of the rocker shaft 7 with the first weft insertion shaft 31 and the second weft insertion shaft 32 are spaced apart from the rotation shaft of the rocker shaft 7, so that the main cam 47 and the auxiliary cam 48 can push each swing arm 41 to the end away from the transmission shaft 5, thereby realizing the swing of the reed seat.

[0031] In another embodiment of this application, a first weft insertion shaft 31 and a second weft insertion shaft 32 are respectively connected to the opposite side walls of the first fixed wall plate 1 and the second fixed wall plate 2. A swing arm 41 is connected to the end of each of the first and second weft insertion shafts 31 that is close to each other. A third weft insertion shaft 33 is connected between the two cam weft insertion assemblies 4. A first clamping plate 42 and a second clamping plate 43 extend from the outer wall of each swing arm 41. A first rotor 44 and a second rotor 45 are rotatably provided between each first clamping plate 42 and second clamping plate 43. The third weft insertion shaft 33 synchronizes the movement of each swing arm 41. A camshaft 46 is provided below each swing arm 41. A transmission shaft 5 is connected between each camshaft 46 and the first fixed wall plate 1 and the second fixed wall plate 2. A linkage shaft 6 connects the camshafts 46 to each other. The linkage shaft 6 synchronizes the movement of each camshaft 46. A main cam 47 and a secondary cam 48 are provided on the outer side of the camshaft 46. The main cam 47 and the secondary cam 48 abut against the first rotor 44 and the second rotor 45 respectively. One end of the camshaft 46 passes through the first fixed wall plate 1 and is connected to the drive component. The drive component applies torque to each camshaft 46 through the linkage shaft 6. Each camshaft 46 drives the main cam 47 and the secondary cam 48 to support the first rotor 44 and the second rotor 45 above, causing the swing arm 41 connecting each rotor to swing back and forth. At the same time, the first weft insertion shaft 31, the second weft insertion shaft 32, and the third weft insertion shaft 33 connected to both ends of each swing arm 41 swing synchronously. The reed seat fixed by the connecting rod 9 drives the warp yarn to perform the weaving operation.

[0032] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0033] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A conjugate cam-balanced weft insertion shaft mechanism, characterized in that, include: The first fixed wall panel (1) and the second fixed wall panel (2) are respectively vertically connected to the first weft insertion shaft (31) and the second weft insertion shaft (32) on their opposite side walls. The first weft insertion shaft (31) and the second weft insertion shaft (32) are each connected to a cam weft insertion assembly (4) at their respective ends. The two cam weft insertion assemblies (4) are connected to each other by a third weft insertion shaft (33). Each of the cam weft insertion components (4) includes a swing arm (41) connected to both ends of the third weft insertion shaft (33). A camshaft (46) is provided below the swing arm (41). The axis of the camshaft (46) is parallel to the axis of the swing arm (41), and the side walls of the two abut against each other. Each of the camshafts (46) is connected to the first fixed wall plate (1) and the second fixed wall plate (2) through a transmission shaft (5). A linkage shaft (6) is provided between each of the camshafts (46).

2. The conjugate cam balancing weft insertion shaft mechanism according to claim 1, characterized in that, The sidewall of the swing arm (41) extends with a first clamping plate (42) and a second clamping plate (43). The first clamping plate (42) and the second clamping plate (43) are arranged sequentially along the axial direction of the swing arm (41). The first clamping plate (42) and the second clamping plate (43) are set at an angle. The first clamping plate (42) and the second clamping plate (43) are each specifically two pieces. A first rotor (44) is rotatably provided between the first clamping plates (42), and a second rotor (45) is rotatably provided between the second clamping plates (43).

3. The conjugate cam balancing weft insertion shaft mechanism according to claim 2, characterized in that, The outer periphery of the camshaft (46) is provided with a main cam (47) and a secondary cam (48), the main cam (47) and the secondary cam (48) are spaced apart, the main cam (47) abuts against the first rotor (44), and the secondary cam (48) abuts against the second rotor (45).

4. The conjugate cam balancing weft insertion shaft mechanism according to claim 3, characterized in that, Both ends of the camshaft (46) are provided with couplings (8), which are used to connect the drive shaft (5) and the linkage shaft (6).

5. The conjugate cam balancing weft insertion shaft mechanism according to claim 1, characterized in that, Both the first fixed wall panel (1) and the second fixed wall panel (2) are provided with rocker shafts (7). Each rocker shaft (7) is fixedly connected to the first weft insertion shaft (31) and the second weft insertion shaft (32). The rocker shaft (7) is used to assist the first weft insertion shaft (31) and the second weft insertion shaft (32) in reciprocating swing.

6. The conjugate cam balancing weft insertion shaft mechanism according to claim 5, characterized in that, The first fixed wall panel (1) and the second fixed wall panel (2) are provided with fixed flanges on their opposite side walls. Each fixed flange is located on the outer periphery of each rocker shaft (7) to fix the setting position of each rocker shaft (7).

7. The conjugate cam balancing weft insertion shaft mechanism according to claim 5, characterized in that, Two connecting rods (9) are vertically provided on the side walls of the first weft insertion shaft (31), the second weft insertion shaft (32), and the third weft insertion shaft (33), and each connecting rod (9) is used to connect the reed seat.

8. The conjugate cam balancing weft insertion shaft mechanism according to claim 2, characterized in that, Each of the first clamping plates (42) and each of the second clamping plates (43) has a locking hole on its side wall, and the rotating shafts of the first rotor (44) and the second rotor (45) are connected to the locking hole.

9. The conjugate cam balancing weft insertion shaft mechanism according to claim 4, characterized in that, The transmission shaft (5) is connected to the output end of the drive component, so that the transmission shaft (5) drives each of the camshafts (46) to rotate.

10. The conjugate cam balancing weft insertion shaft mechanism according to claim 5, characterized in that, Rolling bearings are provided between each of the drive shafts (5) and each of the rocker shafts (7) and the first fixed wall plate (1) and the second fixed wall plate (2).

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