Driving shaft

Abstract

The utility model relates to the technical field of driving shafts of water-jet looms, and discloses a driving shaft which is characterized in that a transmission rod is fixedly installed at the end of a main shaft, a contact mechanism is arranged on the outer surface of the main shaft and comprises an embedded groove, the embedded groove is formed in the arc-shaped outer surface of the main shaft, and the contact mechanism is arranged in the embedded groove. The outer surface of the embedded groove is sleeved with a sleeve, wavy strips are fixedly installed on the arc-shaped outer surface of the sleeve, and a volute spiral spring is fixedly connected to the arc-shaped inner surface of the sleeve. According to the driving shaft, the contact mechanism is arranged and matched with rotation of the main shaft and the auxiliary rod to convey doubling threads, so that the spinning operation of gauze is completed, the contact mechanism is arranged on the arc-shaped outer surface of the main shaft and matched with a sleeve and an embedded groove, and through the elastic force of a volute spiral spring, in the rotating process of the main shaft, the spinning operation is completed. Even if the doubling thread shakes due to mechanical vibration, the contact between the doubling thread and the main shaft does not deviate, so that the spinning effect of the doubling thread is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of driving shafts of water jet looms, in particular to a driving shaft. Background Art

[0002] A water jet loom is a machine that sprays water through a water pump and a spray hole. A spinneret is provided at one end of the shed of the water jet loom to pull the weft yarn through the shed by spraying water, and a hemming device is provided at the other end to tighten the edge of the fabric and cut off the excessively long weft yarn ends to make the edge of the fabric neat. During the operation of the water jet loom, the tension of the weaving thread is controlled and adjusted through the active shaft and related auxiliary shafts to ensure the normal weaving of the cloth.

[0003] The existing driving shaft is usually set corresponding to the auxiliary shaft, and the yarn is generally close to the surface of the driving shaft and the auxiliary shaft. During the weaving operation, the driving shaft is driven to rotate through the power output of the driving equipment to transmit the yarn. Due to the operation of the water jet loom, the yarn always needs to be pulled. Although the auxiliary shaft can adjust the tension of the yarn, the auxiliary shaft is prone to instability when working for a long time, which may cause the yarn on the surface of the driving shaft to detach, which may easily lead to defects in fabric weaving and affect the production quality of the fabric. In view of this, we propose an driving shaft. Utility Model Content

[0004] The purpose of the utility model is to provide a driving shaft to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a driving shaft, comprising a main shaft, a transmission rod is fixedly mounted on the end of the main shaft, and a contact mechanism is provided on the outer surface of the main shaft, and the contact mechanism comprises:

[0006] An embedded groove, wherein the arc-shaped outer surface of the main shaft is provided with an embedded groove, the outer surface of the embedded groove is sleeved with a sleeve, and a corrugated strip is fixedly mounted on the arc-shaped outer surface of the sleeve;

[0007] A volute spring, wherein the arc-shaped inner surface of the sleeve is fixedly connected with a volute spring;

[0008] An installation cavity is provided on the inner wall of the side of the sleeve, a magnetic block is slidably installed inside the installation cavity, a magnetic block with the same magnetic properties as the magnetic block is provided on the inner surface of the bottom of the installation cavity, and a contact ball is arranged inside the installation cavity;

[0009] A contact groove is provided on the side of the embedded groove, and a convex ridge is fixedly installed on the inner surface of the bottom of the contact groove.

[0010] Preferably, the contact ball is arranged on a side of the magnetic block away from the inner wall of the bottom end of the installation cavity, and due to the repulsive force between the magnetic blocks, the magnetic blocks always push the contact ball outwards.

[0011] Preferably, a blocking ring is provided at the end of the installation cavity, and the inner diameter of the blocking ring is smaller than the outer diameter of the contact ball to ensure that the contact ball can only be exposed part of the installation cavity.

[0012] Preferably, the number of the embedded grooves is arranged in several groups, and the several groups of embedded grooves are evenly distributed on the arc-shaped outer surface of the main shaft in a linear array, and the number of the sleeves corresponds to the embedded grooves one by one.

[0013] Preferably, the wave strip has a plurality of curved portions, so that the arc-shaped outer surface of the sleeve has a plurality of transverse protrusions.

[0014] Preferably, the contact groove is arranged flush with the mounting cavity, and the top end of the contact ball is arranged inside the contact groove in an initial state.

[0015] Preferably, the transmission rod passes through a vertical plate, and the vertical plate is rotatably connected to the transmission rod, the side wall of the vertical plate is movably connected with an elastic member, the transmission rod passes through a curved rod, and the curved rod is rotatably connected to the transmission rod, and the top end of the curved rod passes through a secondary rod, and the secondary rod is rotatably connected to the curved rod.

[0016] Compared with the prior art, the utility model provides a driving shaft with the following beneficial effects:

[0017] 1. The driving shaft is provided with a contact mechanism to cooperate with the rotation of the main shaft and the auxiliary rod to transport the yarn, thereby completing the weaving operation of the gauze. A contact mechanism is provided on the arc-shaped outer surface of the main shaft to cooperate with the sleeve and the embedded groove. Through the elastic force of the volute spring, during the rotation of the main shaft, even if mechanical vibration occurs and causes the yarn to shake, the contact between the yarn and the main shaft will not be offset, thereby ensuring the weaving effect of the yarn.

[0018] 2. The driving shaft is provided with a magnetic block and a contact ball at the end of the sleeve, and is provided with a plurality of convex edges, thereby reducing the relative movement speed of the sleeve in the embedded groove, ensuring the relative stability between the sleeve and the main shaft, thereby ensuring the stability of the spinning line transportation, and further ensuring the production efficiency of the water jet loom. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main shaft structure of the utility model;

[0021] Figure 3This is a schematic diagram of the main shaft end structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the sleeve structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the sleeve of the utility model.

[0024] In the figure: 1, main shaft; 2, transmission rod; 3, vertical plate; 4, curved rod; 5, elastic member; 6, auxiliary rod; 7, embedded groove; 8, sleeve; 9, wave strip; 10, scroll spring; 11, mounting cavity; 12, magnetic block; 13, contact ball; 14, contact groove; 15, convex ridge. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a driving shaft, including a main shaft 1, a transmission rod 2 is fixedly installed at the end of the main shaft 1, and a contact mechanism is provided on the outer surface of the main shaft 1, and the contact mechanism includes an embedded groove 7, a sleeve 8, a wave bar 9, a scroll spring 10, an installation cavity 11, a magnetic block 12, a contact ball 13, a contact groove 14 and a convex ridge 15.

[0026] In an embodiment of the utility model, an embedded groove 7 is provided on the arc-shaped outer surface of the main shaft 1, and a sleeve 8 is provided on the outer surface of the embedded groove 7. A wavy strip 9 is fixedly installed on the arc-shaped outer surface of the sleeve 8, and a spiral spring 10 is fixedly connected to the arc-shaped inner surface of the sleeve 8. An installation cavity 11 is provided on the inner wall of the side of the sleeve 8, and a magnetic block 12 is slidably installed inside the installation cavity 11. A magnetic block with the same magnetic property as the magnetic block 12 is provided on the bottom inner surface of the installation cavity 11, and a contact ball 13 is provided inside the installation cavity 11. A contact groove 14 is provided on the side of the embedded groove 7, and a convex ridge 15 is fixedly installed on the bottom inner surface of the contact groove 14.

[0027] Specifically, the contact ball 13 is arranged on the side of the inner wall of the bottom end of the mounting cavity 11 of the magnetic block 12, and because the magnetic properties of the magnetic block and the magnetic block 12 are the same, in the initial state, due to the repulsive force between the magnetic block and the magnetic block 12, the magnetic block 12 always pushes the contact ball 13 outward. Specifically, an arresting ring is arranged at the end of the mounting cavity 11, and the inner diameter of the arresting ring is smaller than the outer diameter of the contact ball 13, so as to ensure that the contact ball 13 can only expose a part of the mounting cavity 11 and will not completely separate from the mounting cavity 11. In addition, the number of embedded grooves 7 is arranged in several groups, and several groups of embedded grooves 7 are uniformly distributed in a linear array on the arc-shaped outer surface of the main shaft 1, and the number of sleeves 8 corresponds to the embedded grooves 7 one by one. Furthermore, the wavy strip 9 has several bending portions, so that the arc-shaped outer surface of the sleeve 8 has several lateral protrusions, so as to form a deceleration structure for the spinning line on the arc-shaped outer surface of the main shaft 1, thereby increasing the stability of the spinning line on the main shaft 1.

[0028] In one embodiment of the utility model, the embedded groove 7 is adapted to the sleeve 8 so that the sleeve 8 can rotate inside the embedded groove 7. Specifically, the two ends of the spiral spring 10 are fixedly connected to the arc-shaped inner surface of the sleeve 8 and the arc-shaped inner surface of the embedded groove 7, respectively. At the same time, the number of mounting cavities 11 is set in several groups, and several groups of mounting cavities 11 are evenly distributed on the end surface of the sleeve 8 in a circular array. In addition, the contact groove 14 is arranged flush with the mounting cavity 11, and the top end of the contact ball 13 is arranged inside the contact groove 14 in the initial state. Specifically, the number of convex ribs 15 is set in several groups, and several groups of convex ribs 15 are arranged in a circular array inside the contact groove 14.

[0029] In addition, the transmission rod 2 passes through the vertical plate 3, and the vertical plate 3 is rotatably connected to the transmission rod 2. The side wall of the vertical plate 3 is movably connected with an elastic member 5. The transmission rod 2 passes through the curved rod 4, and the curved rod 4 is rotatably connected to the transmission rod 2. The top end of the curved rod 4 passes through the auxiliary rod 6, and the auxiliary rod 6 is rotatably connected to the curved rod 4.

[0030] In an embodiment of the utility model, there are two groups of vertical plates 3, and the two groups of vertical plates 3 are mirror-imaged at both ends of the main shaft 1, thereby providing a mounting and supporting position for the main shaft 1. At the same time, the curved rod 4 is movably connected to the vertical plates 3, and the bottom end of the curved rod 4 is provided with a rectangular groove whose width matches the width of the elastic member 5, and the elastic member 5 is arranged to be adjustable in length, so that the curved rod 4 forms a lever relationship with the connection between it and the transmission rod 2 as a fulcrum, and the elastic force of the elastic member 5 cooperates with the curved rod 4 and the auxiliary rod 6 to adjust the tension of the spinning thread on the arc-shaped outer surface of the main shaft 1, so that it always maintains a relatively tight state to ensure the weaving quality of the device.

[0031] In the utility model, when in use, the main shaft 1 is driven by the driving device of the water jet loom to rotate, thereby cooperating with the auxiliary rod 6 to transport the yarn, thereby completing the weaving operation of the gauze. A contact mechanism is provided on the arc-shaped outer surface of the main shaft 1, cooperating with the sleeve 8 and the embedded groove 7, through the elastic force of the spiral spring 10, during the rotation of the main shaft 1, even if mechanical vibration occurs and causes the yarn to shake, the contact between the yarn and the main shaft 1 will not be offset, thereby ensuring the weaving effect of the yarn. In addition, a magnetic block 12 and a contact ball 13 are provided at the end of the sleeve 8, and a plurality of ridges 15 are provided, so as to reduce the relative movement speed of the sleeve 8 in the embedded groove 7, thereby ensuring the relative stability between the sleeve 8 and the main shaft 1, so as to ensure the stability of the yarn transportation, and then ensure the production efficiency of the water jet loom.

[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A driving shaft, comprising a main shaft (1), a transmission rod (2) being fixedly mounted on the end of the main shaft (1), characterized in that: The outer surface of the main shaft (1) is provided with a contact mechanism, and the contact mechanism comprises: An embedded groove (7), wherein the arc-shaped outer surface of the main shaft (1) is provided with an embedded groove (7), the outer surface of the embedded groove (7) is sleeved with a sleeve (8), and a corrugated strip (9) is fixedly mounted on the arc-shaped outer surface of the sleeve (8); A volute spring (10), the volute spring (10) being fixedly connected to the arc-shaped inner surface of the sleeve (8); An installation cavity (11), wherein the side inner wall of the sleeve (8) is provided with an installation cavity (11), a magnetic block (12) is slidably installed inside the installation cavity (11), a magnetic block having the same magnetic properties as the magnetic block (12) is provided on the bottom inner surface of the installation cavity (11), and a contact ball (13) is arranged inside the installation cavity (11); A contact groove (14) is provided on the side of the embedded groove (7), and a convex ridge (15) is fixedly mounted on the inner surface of the bottom of the contact groove (14).

2. A driving shaft according to claim 1, characterized in that: The contact ball (13) is arranged on a side of the magnetic block (12) away from the inner wall of the bottom end of the installation cavity (11).

3. The driving shaft according to claim 1, characterized in that: An arresting ring is provided at the end of the installation cavity (11), and the inner diameter of the arresting ring is smaller than the outer diameter of the contact ball (13).

4. The driving shaft according to claim 1, characterized in that: The number of the embedded grooves (7) is arranged in a plurality of groups, and the plurality of groups of embedded grooves (7) are evenly distributed on the arc-shaped outer surface of the main shaft (1) in a linear array, and the number of the sleeves (8) corresponds one-to-one to the number of the embedded grooves (7).

5. The driving shaft according to claim 1, characterized in that: The wave strip (9) has a plurality of curved parts.

6. The driving shaft according to claim 1, characterized in that: The contact groove (14) is arranged flush with the mounting cavity (11), and the top end of the contact ball (13) is arranged inside the contact groove (14) in an initial state.

7. The driving shaft according to claim 1, characterized in that: The transmission rod (2) passes through a vertical plate (3), and the vertical plate (3) is rotatably connected to the transmission rod (2); a side wall of the vertical plate (3) is movably connected to an elastic member (5); the transmission rod (2) passes through a curved rod (4), and the curved rod (4) is rotatably connected to the transmission rod (2); a secondary rod (6) passes through the top end of the curved rod (4), and the secondary rod (6) is rotatably connected to the curved rod (4).

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