Adjusting mechanism of yarn storage device

Abstract

The utility model discloses an adjusting mechanism of a yarn storage device, which relates to the technical field of textile machinery and comprises a machine body, a swing block and a yarn pressing ring, a yarn storage cylinder is sleeved with the yarn pressing ring, the swing block is rotatably connected to the yarn pressing ring, and the swing block and the yarn pressing ring are arranged on the same side of the machine body; a poke rod is connected to the swing block, an avoiding hole is formed in the machine body, and the poke rod penetrates through the avoiding hole and extends into the machine body. The adjusting mechanism further comprises a knob assembly and a tension spring, the knob assembly is rotatably arranged on the machine body, the two ends of the tension spring are connected to the poke rod and the knob assembly, a switch device is arranged in the machine body, the switch device is used for controlling the motor to start and stop, and the switch device is arranged on the side, away from the tension spring, of the poke rod; and when the poke rod overcomes the elastic force of the tension spring to deflect to trigger the switch device, the motor stops rotating. According to the yarn pressing device, the tension spring connected to the poke rod can be adjusted, so that the pressure of the yarn pressing ring on the yarn is adjusted.

Description

Technical Field

[0001] This utility model relates to the technical field of textile machinery, and in particular to an adjustment mechanism for a yarn storage device. Background Technology

[0002] A yarn storage device is a device used in textile machinery for storing and supplying yarn. It typically includes a machine body, a yarn storage cylinder, and a motor. The yarn storage cylinder is rotatably mounted on one side of the machine body. The motor rotates the yarn storage cylinder, thereby winding the yarn onto the yarn storage cylinder for yarn storage.

[0003] In some yarn storage devices, a pressure ring is provided outside the yarn storage cylinder. A swing block is located on the side of the machine body facing the pressure ring, and the swing block is connected to the pressure ring. A lever is located on the side of the swing block away from the pressure ring, and the lever extends through the machine body to the side of the machine body away from the yarn storage cylinder. A fixed post protrudes from the machine body, and a tension spring connects the fixed post and the lever. A switching device is provided on the machine body, and the switching device is located on the side of the lever away from the tension spring.

[0004] Initially, the yarn pressing ring is tilted relative to the yarn storage cylinder, and the tension spring pulls the actuating lever to tilt towards the side closer to the fixed rod. As the motor rotates, it drives the yarn storage cylinder to rotate, and the yarn continuously accumulates on the cylinder. This causes the yarn pressing ring to move upward and change its tilt angle, thereby driving the oscillating block to swing. This causes the actuating lever to approach the switching device until the switching device is triggered, at which point the motor stops rotating, and yarn storage stops.

[0005] In the aforementioned yarn feeder, the two ends of the tension spring are fixed to the actuating rod and the fixing rod. Without replacing the tension spring, the spring constant is fixed, making it impossible to adjust the pressure of the tension spring on the actuating rod, and thus impossible to adjust the pressure of the yarn presser ring on the yarn. Utility Model Content

[0006] The purpose of this invention is to provide an adjustment mechanism for a yarn storage device, which can adjust the tension spring connected to the lever, thereby adjusting the pressure of the yarn pressing ring on the yarn to meet usage requirements.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] An adjustment mechanism for a yarn storage device, the yarn storage device including a yarn storage cylinder and a motor for driving the yarn storage cylinder to rotate, the adjustment mechanism including a machine body, a swing block and a yarn pressing ring, the yarn pressing ring being sleeved outside the yarn storage cylinder, the swing block being rotatably connected to the yarn pressing ring, the swing block and the yarn pressing ring being disposed on the same side of the machine body;

[0009] A lever is connected to the swing block, and a clearance hole is provided on the body. The lever passes through the clearance hole and extends into the body. The adjustment mechanism also includes a knob assembly and a tension spring. The knob assembly is rotatably mounted on the body. The first end of the tension spring is fixedly connected to the lever, and the second end of the tension spring is connected to the knob assembly and does not coincide with the rotation axis of the knob assembly.

[0010] The machine body is equipped with a switch device for controlling the start and stop of the motor. The switch device is located on the side of the toggle lever away from the tension spring. When the toggle lever deflects against the tension spring force to trigger the switch device, the motor stops rotating.

[0011] Furthermore, the adjustment mechanism also includes a guide wheel, which is disposed in the body of the machine and located on the side of the toggle lever away from the switch device. The tension spring passes around the guide wheel, and the outer periphery of the tension spring abuts against the outer periphery of the guide wheel.

[0012] Furthermore, the guide wheel is rotatably mounted on the machine body.

[0013] Furthermore, an annular guide groove is formed on the outer periphery of the guide wheel, and the outer periphery of the tension spring is fitted into the guide groove.

[0014] Furthermore, a steel wire rope is connected to the second end of the tension spring, and the end of the steel wire rope away from the tension spring is connected to the knob assembly.

[0015] Furthermore, the knob assembly has a connecting post protruding along the axial direction, and the connecting post does not coincide with the central axis of the knob assembly; the end of the wire rope away from the tension spring is connected to a connecting ring, and the connecting ring is sleeved on the connecting post.

[0016] Furthermore, the connecting post is provided with a limiting block protruding radially, the limiting block being used to prevent the connecting ring from detaching from the connecting post.

[0017] Furthermore, the knob assembly includes an adjustment knob and a rotating disk. The adjustment knob is coaxially connected to the rotating disk, the adjustment knob protrudes from the body of the machine, and the rotating disk is disposed inside the body of the machine and connected to the tension spring.

[0018] Furthermore, the diameter of the rotating disk is larger than the diameter of the adjusting knob.

[0019] Furthermore, a stepped groove is formed around the outer periphery of the rotating disk, and the connection point between the tension spring and the rotating disk is located within the stepped groove.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. The adjusting mechanism of the yarn storage device of this utility model is rotatably connected to the yarn pressing ring via a swing block. Position detection is achieved via a lever connected to the swing block. Initially, the lever is biased away from the switch device under the action of a tension spring. As the yarn storage cylinder rotates to store yarn, the yarn pressing ring moves upward, causing the lever to move closer to the device. When the yarn storage cylinder is full, the lever triggers the switch device, and the motor stops rotating the yarn storage cylinder, thus controlling the amount of yarn stored. The second end of the tension spring (the end away from the lever) is connected to a knob assembly, allowing adjustment of the spring force by rotating the knob assembly, thereby adjusting the pressure of the yarn pressing ring to meet usage requirements.

[0022] 2. A guide wheel is installed inside the machine body. The guide wheel is located on the side of the lever away from the switch device. The tension spring passes around the guide wheel, so that the two ends of the tension spring are not on the same straight line. The guide wheel turns the tension spring so that no matter where the knob assembly is set, the tension spring always pulls the lever away from the switch device, ensuring the normal operation of the adjustment mechanism and reducing the limitations of the knob assembly installation position.

[0023] 3. The guide wheel is rotatably mounted inside the machine body, so that the guide wheel can rotate when guiding the tension spring, reducing wear between the tension spring and the guide wheel, and making the tension spring extend and retract more smoothly;

[0024] 4. The guide wheel is limited by a guide groove on its outer circumference, which makes the tension spring stably pass over the guide wheel and prevents the tension spring from easily detaching from the guide wheel, thus ensuring the normal operation of the adjustment mechanism;

[0025] 5. The second end of the tension spring is connected to the knob assembly via a steel wire rope to reduce the length of the tension spring and save on its cost;

[0026] 6. A connecting ring is installed at the end of the wire rope away from the tension spring. The connecting ring is sleeved on the connecting post of the knob assembly to connect the wire rope and the knob assembly. This connection method is simple and convenient. At the same time, when the knob assembly is rotated, the connecting post can rotate relative to the connecting ring, reducing the probability of fatigue damage to the connection point between the wire rope and the knob assembly due to the rotation of the knob.

[0027] 7. A limit block is installed on the connecting column to restrict the connecting ring, making it difficult for the connecting ring to detach from the connecting column and ensuring the normal operation of the adjustment mechanism;

[0028] 8. The knob assembly is connected to the tension spring via a rotating disc inside the machine body, and the adjustment knob protrudes outside the machine body for easy rotation operation by the user;

[0029] 9. The diameter of the rotating disc is larger than that of the adjustment knob to increase the amount of tension on the spring when the knob assembly rotates. This results in a larger stroke of the spring when the knob assembly is rotated. Under the same elastic force, the spring constant can be smaller. When the knob is rotated by the same angle, the change in the spring force is smaller, thereby improving the accuracy of spring force adjustment.

[0030] 10. A stepped groove is formed around the outer circumference of the rotating disk, so that when the knob assembly rotates and stretches the tension spring, the wire rope or tension spring can be confined in the stepped groove, so that the wire rope or tension spring is stably wound around the rotating disk and is not easy to slip off the rotating disk. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural schematic diagram of a yarn storage device according to an embodiment of the present invention.

[0032] Figure 2 This is a three-dimensional structural schematic diagram of the adjustment mechanism according to an embodiment of the present invention.

[0033] Figure 3 This is an exploded structural diagram of the adjustment mechanism according to an embodiment of the present invention.

[0034] Figure 4 This is a three-dimensional structural diagram of a tension spring and guide wheel according to an embodiment of the present invention.

[0035] Figure 5 This is a three-dimensional structural diagram of a tension spring, guide wheel, and rotating disk according to an embodiment of the present invention.

[0036] In the diagram: 1000, yarn storage device; 100, adjusting mechanism; 110, machine body; 111, base plate; 112, housing; 113, clearance hole; 120, swing block; 130, yarn pressing ring; 140, toggle lever; 150, knob assembly; 151, adjusting knob; 152, rotating disk; 153, stepped groove; 154, knob shaft; 155, connecting column; 156, limit block; 160, tension spring; 170, guide wheel; 171, guide groove; 180, wire rope; 181, connecting ring; 200, yarn storage cylinder. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] This embodiment discloses an adjusting mechanism 100 for a yarn storage device, referring to... Figure 1 and Figure 2The adjusting mechanism 100 is used in the yarn storage device 1000, which includes a yarn storage cylinder 200 and a motor for driving the yarn storage cylinder 200 to rotate. The motor drives the yarn storage cylinder 200 to rotate so that yarn is wound around the yarn storage cylinder 200 to achieve yarn storage. The adjusting mechanism 100 is located at one end of the yarn storage cylinder 200, and the amount of yarn stored in the yarn storage cylinder 200 is controlled by adjusting the adjusting mechanism 100.

[0039] Reference Figure 1 and Figure 2 The adjusting mechanism 100 includes a body 110, a swing block 120, and a yarn pressing ring 130. The yarn pressing ring 130 is sleeved on the outside of the yarn storage cylinder 200. The yarn pressing ring 130 can rotate together with the yarn storage cylinder 200 and can move axially relative to the yarn storage cylinder 200. The yarn pressing ring 130 provides an upper limit for the yarn on the yarn storage cylinder 200. When the amount of yarn on the yarn storage cylinder 200 increases, the yarn pressing ring 130 moves upward along the axial direction of the yarn storage cylinder 200.

[0040] Combination Figure 3 The swing block 120 is connected to the middle of the yarn pressing ring 130, and the swing block 120 and the yarn pressing ring 130 are rotatably connected, so that the swing block 120 does not rotate when the yarn pressing ring 130 rotates with the yarn storage cylinder 200. Specifically, the swing block 120 and the yarn pressing ring 130 can be rotatably connected through a shaft and shaft hole fit, so that the swing block 120 and the yarn pressing ring 130 can rotate relative to each other, and the yarn pressing ring 130 can drive the swing block 120 to swing synchronously.

[0041] The machine body 110 is located at the end of the yarn pressing ring 130 and the swing block 120 away from the yarn storage cylinder 200. The machine body 110 is fixedly connected to the textile equipment, while the yarn storage cylinder 200 can rotate relative to the machine body 110.

[0042] The machine body 110 includes a base plate 111 and a housing 112. The swing block 120 and the yarn pressing ring 130 are disposed on the side of the base plate 111 facing the yarn storage cylinder 200. The housing 112 covers the side of the base plate 111 away from the yarn storage cylinder 200. The housing 112 and the base plate 111 form a cavity.

[0043] A lever 140 is connected to the swing block 120. A clearance hole 113 is provided on the bottom plate 111 of the body 110. The lever 140 passes through the clearance hole 113 and extends into the body 110. The adjustment mechanism 100 also includes a knob assembly 150 and a tension spring 160. The knob assembly 150 is rotatably mounted on the body 110. The first end of the tension spring 160 is fixedly connected to the lever 140, and the second end of the tension spring 160 is connected to the knob assembly 150 and does not coincide with the rotation axis of the knob assembly 150.

[0044] A switch device is installed inside the body 110. The switch device is fixedly installed on the base plate 111 and is located on the side of the toggle lever 140 away from the tension spring 160. The switch device is electrically connected to the motor through a circuit board to control the start and stop of the motor.

[0045] In the initial state, the lever 140 is tilted away from the switch device by the tension of the spring 160, so the swing block 120 is in a state where one end is low and the other end is high in the initial state. Correspondingly, the pressure ring 130 is also in a state where one end is low and the other end is high, specifically, the end adjacent to the lever 140 is low and the end adjacent to the switch device is high.

[0046] When the yarn storage cylinder 200 rotates to store yarn, as the amount of stored yarn increases, the lower end of the yarn pressing ring 130 contacts the amount of stored yarn and moves upward, thereby driving the actuating rod 140 to move towards the side closer to the device through the swing block 120; when the amount of stored yarn in the yarn storage cylinder 200 is full, the actuating rod 140 triggers the switching device, and the motor stops driving the yarn storage cylinder 200 to rotate, thereby realizing the control of the amount of stored yarn.

[0047] In this embodiment, the second end of the tension spring 160 (the end away from the lever 140) is connected to the knob assembly 150, so that the tension spring 160 can be stretched by rotating the knob assembly 150, thereby adjusting the elastic force of the tension spring 160 and adjusting the pressure of the pressure yarn loop 130 to meet the usage requirements.

[0048] Reference Figure 2 and Figure 3 The adjustment mechanism 100 also includes a guide wheel 170, which is disposed inside the machine body 110 and connected to the side of the base plate 111 away from the pressure ring 130. The axis of the guide wheel 170 is perpendicular to the base plate 111. The guide wheel 170 is located on the side of the actuating lever 140 away from the switch device. The tension spring 160 passes around the guide wheel 170 and its two ends are respectively connected to the actuating lever 140 and the knob assembly 150. The outer periphery of the tension spring 160 abuts against the outer periphery of the guide wheel 170. Thus, the guide wheel 170 deflects the tension spring 160, so that the two ends of the tension spring 160 are not on the same straight line. Regardless of the location of the knob assembly 150, the tension spring 160 always pulls the actuating lever 140 away from the switch device, ensuring the normal operation of the adjustment mechanism 100 and reducing the limitations of the installation position of the knob assembly 150.

[0049] In this embodiment, the guide wheel 170 is rotatably connected to the base plate 111, allowing the guide wheel 170 to rotate while guiding the tension spring 160, reducing wear between the tension spring 160 and the guide wheel 170, and making the extension and retraction of the tension spring 160 smoother. Specifically, a rotating shaft can be protruded on the base plate 111, and the guide wheel 170 has a rotating hole along its central axis that mates with the rotating shaft, thereby enabling the rotatable installation of the guide wheel 170. In other embodiments, the guide wheel 170 can also be fixedly installed, with the tension spring 160 sliding relative to the circumference of the guide wheel 170 during extension and retraction.

[0050] Reference Figure 4 A ring-shaped guide groove 171 is formed on the outer periphery of the guide wheel 170, and the outer periphery of the tension spring 160 is fitted into the guide groove 171. The guide wheel 170 limits the tension spring 160 through the outer ring guide groove 171, so that the tension spring 160 stably passes over the guide wheel 170 and is not easy to detach from the guide wheel 170, thus ensuring the normal operation of the adjustment mechanism 100.

[0051] In this embodiment, the guide groove 171 is a V-shaped groove, meaning that the guide groove 171 has a V-shape in its cross-section along the direction perpendicular to the extension of the guide groove 171 (i.e., along the radial direction of the guide wheel 170), allowing the tension spring 160 to contact both sides of the V-shaped groove wall of the guide groove 171, thereby facilitating the tension spring 160 to pull the guide wheel 170 to rotate. Furthermore, in other embodiments, the guide groove 171 may also be a groove with a rectangular or arc-shaped cross-section.

[0052] In this embodiment, the second end of the tension spring 160 is connected to a steel wire rope 180. The end of the steel wire rope 180 away from the tension spring 160 is connected to the knob assembly 150. That is, the tension spring 160 is connected to the knob assembly 150 through the steel wire rope 180, thereby reducing the length of the tension spring 160 and saving the cost of the tension spring 160. In other embodiments, the steel wire rope 180 may be omitted, and the knob assembly 150 and the toggle lever 140 may be directly connected through the tension spring 160.

[0053] Reference Figures 2 to 4 The knob assembly 150 includes an adjustment knob 151 and a rotating disk 152. The adjustment knob 151 and the rotating disk 152 are coaxially and fixedly connected. The adjustment knob 151 protrudes from the machine body 110 for user operation. The rotating disk 152 is disposed inside the machine body 110 and connected to a tension spring 160 via a steel wire rope 180. Thus, when the user rotates the knob, it drives the rotating disk 152 to rotate. The rotating disk 152 stretches the tension spring 160 via the steel wire rope 180, which is wound around the periphery of the rotating disk 152.

[0054] In this embodiment, the diameter of the rotating disk 152 is larger than the diameter of the adjusting knob 151, so as to increase the amount of tension on the tension spring 160 when the knob assembly 150 is rotated, so that the stroke of the tension spring 160 is larger when the knob assembly 150 is rotated. Under the same elastic force, the spring constant of the tension spring 160 can be smaller, and the change of the elastic force of the tension spring 160 is smaller when the knob is rotated by the same angle, thereby improving the accuracy of the elastic force adjustment of the tension spring 160.

[0055] Reference Figure 5 A stepped groove 153 is formed around the outer periphery of the rotating disk 152. The connection point between the tension spring 160 and the rotating disk 152 is located in the stepped groove 153. Thus, when the knob assembly 150 rotates to stretch the tension spring 160, the wire rope 180 or the tension spring 160 can be confined in the stepped groove 153 when it is wrapped around the periphery of the rotating disk 152, so that the wire rope 180 or the tension spring 160 is stably wrapped around the rotating disk 152 and is not easy to slip off the rotating disk 152.

[0056] In this embodiment, a knob shaft 154 protrudes from the side of the rotating disk 152 facing the adjustment knob 151, and the knob shaft 154 passes through the housing 112 of the body 110. The adjustment knob 151 is fixedly sleeved on the outside of the knob shaft 154, and the torque is transmitted to the rotating disk 152 through the knob shaft 154.

[0057] The rotating disk 152 is generally disc-shaped, with a connecting post 155 protruding along its axial direction. The connecting post 155 does not coincide with the central axis of the rotating disk 152. A connecting ring 181 is provided at the end of the wire rope 180 away from the tension spring 160. The connecting ring 181 is sleeved on the connecting post 155 to connect the wire rope 180 to the rotating disk 152. This connection method is simple and convenient. At the same time, when the rotating disk 152 rotates, the connecting post 155 can rotate relative to the connecting ring 181, reducing the probability of fatigue damage to the connection point between the wire rope 180 and the connecting post 155 due to knob rotation.

[0058] The connecting post 155 has a limiting block 156 protruding radially. The limiting block 156 is located above the rotating disk 152, so that the limiting block 156 and the rotating disk 152 limit the connecting ring 181 on the upper and lower sides, making it difficult for the connecting ring 181 to detach from the connecting post 155.

[0059] In this embodiment, the outer periphery of the adjustment knob 151 is provided with friction texture to increase the friction between the user's hand and the adjustment knob 151, making it easier for the user to operate.

[0060] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An adjustment mechanism for a yarn storage device, the yarn storage device (1000) comprising a yarn storage cylinder (200) and a motor for driving the yarn storage cylinder (200) to rotate, the adjustment mechanism (100) comprising a body (110), a swing block (120) and a yarn pressing ring (130), the yarn pressing ring (130) being sleeved on the outside of the yarn storage cylinder (200), the swing block (120) being rotatably connected to the yarn pressing ring (130), the swing block (120) and the yarn pressing ring (130) being disposed on the same side of the body (110); Its features are, A lever (140) is connected to the swing block (120), and a clearance hole (113) is provided on the body (110). The lever (140) passes through the clearance hole (113) and extends into the body (110). The adjustment mechanism (100) also includes a knob assembly (150) and a tension spring (160). The knob assembly (150) is rotatably disposed on the body (110). The first end of the tension spring (160) is fixedly connected to the lever (140), and the second end of the tension spring (160) is connected to the knob assembly (150) and does not coincide with the rotation axis of the knob assembly (150). A switch device is provided inside the body (110) for controlling the start and stop of the motor. The switch device is located on the side of the toggle lever (140) away from the tension spring (160). When the toggle lever (140) deflects against the elastic force of the tension spring (160) to trigger the switch device, the motor stops rotating.

2. The adjusting mechanism of a yarn storage device according to claim 1, characterized in that, The adjustment mechanism (100) further includes a guide wheel (170), which is disposed inside the body (110) and located on the side of the toggle lever (140) away from the switch device. The tension spring (160) passes around the guide wheel (170), and the outer peripheral side of the tension spring (160) abuts against the outer peripheral side of the guide wheel (170).

3. The adjusting mechanism of a yarn storage device according to claim 2, characterized in that, The guide wheel (170) is rotatably mounted on the body (110).

4. The adjusting mechanism of a yarn accumulator according to claim 3, characterized in that, The guide wheel (170) has an annular guide groove (171) on its outer periphery, and the outer periphery of the tension spring (160) is fitted into the guide groove (171).

5. The adjusting mechanism of a yarn storage device according to claim 1, characterized in that, The second end of the tension spring (160) is connected to a steel wire rope (180), and the end of the steel wire rope (180) away from the tension spring (160) is connected to the knob assembly (150).

6. The adjusting mechanism of a yarn accumulator according to claim 5, characterized in that, The knob assembly (150) has a connecting post (155) protruding along the axial direction. The connecting post (155) does not coincide with the central axis of the knob assembly (150). The end of the wire rope (180) away from the tension spring (160) is connected to a connecting ring (181), which is sleeved on the connecting post (155).

7. The adjusting mechanism of a yarn accumulator according to claim 6, characterized in that, The connecting post (155) is provided with a limiting block (156) protruding radially, and the limiting block (156) is used to prevent the connecting ring (181) from detaching from the connecting post (155).

8. The adjusting mechanism of a yarn storage device according to claim 1, characterized in that, The knob assembly (150) includes an adjustment knob (151) and a rotating disk (152). The adjustment knob (151) and the rotating disk (152) are coaxially connected. The adjustment knob (151) protrudes outside the body (110). The rotating disk (152) is disposed inside the body (110) and connected to the tension spring (160).

9. The adjusting mechanism of a yarn storage device according to claim 8, characterized in that, The diameter of the rotating disk (152) is larger than the diameter of the adjusting knob (151).

10. The adjusting mechanism of a yarn storage device according to claim 8, characterized in that, A stepped groove (153) is formed around the outer periphery of the rotating disk (152), and the connection point between the tension spring (160) and the rotating disk (152) is located in the stepped groove (153).

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