A hosiery machine main shuttle mechanism

Abstract

This utility model discloses a main shuttle mechanism for a sock knitting machine, comprising several shuttles arranged in parallel, all of which are rotatably mounted on the same pivot. Each shuttle has an eyelet at its front end for yarn to pass through, and its rear end is driven by a drive mechanism to move up and down, thereby moving the front end. It also includes a limiting device, comprising limiting walls on both sides of the parallel shuttles, and limiting blocks mounted on the limiting walls, extending towards the center and contacting the shuttles. By setting the limiting blocks, this utility model ensures that the shuttles are in close contact with each other and are subjected to pressure from the limiting blocks at both edges. This lateral pressure restricts the left-right swaying of the shuttles without affecting their normal up-and-down movement, thus maintaining their lateral position.

Description

Technical Field

[0001] This utility model belongs to the field of knitting machinery technology, and in particular relates to sock knitting machines, and more specifically, to a main shuttle mechanism for a sock knitting machine. Background Technology

[0002] During the knitting process of a sock knitting machine, shuttles are used to transport the yarn to the knitting area. The main shuttle mechanism integrates several shuttles, providing the sock machine with commonly used multi-path yarns. The shuttles in the main shuttle mechanism are arranged in parallel, with eyelets at the front end for the yarn to pass through, and the rear end driven by a cylinder. Through a lever, the eyelets at the front end move up and down, thus entering or leaving the working position.

[0003] CN212983206U discloses a main shuttle device for a sock knitting machine, including a main frame, a main shuttle frame, and shuttle bodies. The main shuttle frame is disposed on one side of the main frame and has multiple strip grooves distributed along the width direction of the main shuttle frame. Multiple shuttle bodies are disposed and distributed along the width direction of the main shuttle frame. All shuttle bodies are rotatably connected to the main shuttle frame. One end of the shuttle body passes through the strip groove and extends above the main shuttle frame, and the other end extends towards the knitting opening. The main frame is provided with the same number of drive cylinders as the shuttle bodies for driving the shuttle bodies to rotate, and the same number of reset components as the shuttle bodies for resetting the shuttle bodies after the thrust of the drive cylinders disappears. The drive cylinders are arranged in at least two layers along the height direction, and each layer of cylinders is distributed along the width direction of the main shuttle frame.

[0004] The drawback of the aforementioned and other existing technologies is that when the shuttle is pushed by the cylinder to perform a lever motion, its lateral position cannot be guaranteed to be consistent; that is, it may sway from side to side, causing the shuttle to not be in the set position but rather at an angle. This changes the spatial position of the yarn eyelets, thereby affecting the accuracy of yarn feeding. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a more stable main shuttle mechanism for sock knitting machines.

[0006] The technical solution adopted by this utility model is as follows: a main shuttle mechanism for a sock knitting machine includes several shuttles arranged in parallel, all of which are rotatably mounted on the same pivot, making each shuttle a lever mechanism; the front end of each shuttle has a yarn eye for the yarn to pass through, and the rear end is driven by a drive mechanism to move up and down, thereby driving the front end to move; the feature is that it also includes a limiting device, which includes limiting walls provided on both sides of the parallel shuttles, and limiting blocks installed on the limiting walls, extending towards the middle and contacting the shuttles.

[0007] The limiting blocks are symmetrical from left to right, and there is at least one pair of them; wherein at least one pair of limiting blocks is located in front of the pivot.

[0008] The limiting blocks are in two pairs, one pair being in front of the pivot and the other pair being below the pivot.

[0009] The limiting block and the limiting wall are connected by threads.

[0010] The end of the limiting block that contacts the shuttle has a circular end face, the diameter of which is not less than the height of the corresponding part of the shuttle.

[0011] Furthermore, the drive mechanism is an integrated cylinder with several pistons inside, each corresponding to the rear end of each shuttle; the integrated cylinder contains several solenoid valves to control the air passage opening and closing of each piston.

[0012] In this invention, the end of the shuttle closest to the weaving area is called the front, and the opposite direction is called the back; the direction in which multiple shuttles are arranged side by side is called the left and right; and the direction perpendicular to the front, back, left, and right is called the up and down.

[0013] This invention uses limiting blocks to ensure that the shuttles fit together and are pressed against each other at both edges. This lateral pressure restricts the shuttles' left-right swaying without affecting their normal up-and-down movement. This is achieved by adjusting the threaded engagement between the limiting blocks and the limiting walls. Therefore, the shuttles of this invention maintain their lateral position at all times. Furthermore, by integrating the solenoid valve into the integrated cylinder, the opening and closing of the air path directly affects the piston, resulting in a shorter air path and a faster, more sensitive response. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 This is an exploded view of the present invention. Detailed Implementation

[0016] See the accompanying drawings. This embodiment includes nine shuttles 1 arranged side by side, each shuttle 1 having a yarn eye 11 at its front end for the yarn to pass through. Each shuttle also has a mounting part 10 with pivot holes through which a pivot 5 passes, thereby allowing all the shuttles arranged side by side to rotate around the pivot 5.

[0017] There are limiting walls 3 on the left and right sides in front of the frame, and all shuttles are in the space between the two limiting walls 3. There are two limiting blocks 4 on each of the two limiting walls, and a total of four limiting blocks are symmetrically arranged in two groups. One group of limiting blocks 4 is located below the pivot 5, that is, on the projection of the pivot, and the other group of limiting blocks 4 is located in front of the projection of the pivot.

[0018] All the limiting blocks 4 are threadedly connected to the limiting wall 3. Their end faces are round and extend between the two limiting walls, contacting (or abutting) the outermost shuttle, thus ensuring that all the shuttles are laterally aligned and have no room to move. To ensure that each shuttle faces forward, the depth distance between the limiting blocks and the limiting walls can be adjusted.

[0019] In this embodiment, the rear section is an integrated cylinder 2, which contains multiple air passages and multiple solenoid valves 21. The solenoid valves 21 control the opening and closing of the air passages, thereby controlling the piston 22 to extend. When the piston 22 extends, it presses the corresponding shuttle downward, causing it to generate a lever motion, and the yarn eyelet at the front end curls upward. When the air passage controlled by the solenoid valve is cut off, the return spring 23 resets the corresponding shuttle and pushes the corresponding piston 22 back to its original position.

Claims

1. A main shuttle mechanism for a sock knitting machine, comprising a plurality of shuttles arranged in parallel, all shuttles being rotatably mounted on the same pivot, such that each shuttle acts as a lever mechanism; each shuttle has an eyelet at its front end for yarn to pass through, and its rear end is driven by a drive mechanism to move up and down, thereby driving the front end to move; characterized in that: It also includes a limiting device, which includes limiting walls on both sides of the parallel shuttles, and a limiting block installed on the limiting walls, extending towards the middle and contacting the shuttles.

2. The hosiery machine main shuttle mechanism of claim 1 wherein: The limiting blocks are symmetrical from left to right, and there is at least one pair of them; wherein at least one pair of limiting blocks is located in front of the pivot.

3. A main shuttle mechanism for a hosiery machine as claimed in claim 2, characterised in that: The limiting blocks are in two pairs, one pair being in front of the pivot and the other pair being below the pivot.

4. A main-shuttle mechanism for a hosiery machine as claimed in claim 3, characterized in that: The limiting block and the limiting wall are connected by threads.

5. A main-shuttle mechanism for a hosiery machine as claimed in claim 4, characterised in that: The end of the limiting block that contacts the shuttle has a circular end face, the diameter of which is not less than the height of the corresponding part of the shuttle.

6. A main-shuttle mechanism for a hosiery machine as claimed in any one of claims 1 to 5, characterised in that: The drive mechanism is an integrated cylinder with several pistons inside, each corresponding to the rear end of each shuttle; the integrated cylinder contains several solenoid valves to control the air passage opening and closing of each piston.

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