Circular weft knitting machine

Abstract

The utility model relates to the technical field of weft knitting machines, in particular to a circular weft knitting machine which comprises a mounting plate, a mounting frame and a yarn ring cylinder, a cylinder groove is formed in the surface of a connecting frame of the mounting frame, a blocking frame is arranged on the inner wall of the cylinder groove, and the yarn ring cylinder comprises an inner cylinder and an outer cylinder. An outer cylinder; and a screw. Therefore, according to the circular weft knitting machine, the yarn ring cylinder does not need to be integrally detached, the inner cylinder can be fixed and loosened by rotating the outer cylinder, the yarn cylinder directly sleeves the outer sides of the inner cylinder and the outer cylinder, repeated operation is greatly reduced, the height of the mounting frame is adjusted through the electric telescopic rod, climbing and heightening are avoided, different scenes are adapted, and the screw rod is matched with the fixing disc to ensure stability of the inner cylinder. The spring structure of the elastic stop block protects the yarn cylinder, the elastic force of the spring can be adjusted by rotating the stop seat, the coaxiality of the inner positioning cylinder and the outer positioning cylinder is ensured, and the yarn feeding stability and the operation efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of weft knitting machine, especially a circular weft knitting machine. BACKGROUND

[0002] The knitting needle is arranged on the circular needle cylinder, and the knitting machine for producing the cylindrical weft-knitted fabric is referred to as a circular weft-knitting machine. The circular weft-knitting machine can be classified according to the type of knitting needle, the number of needle cylinders, the configuration form of needle cylinder, and the movement mode of knitting needle. According to the shape of the "needle bed", the circular weft-knitting machine and the flat weft-knitting machine can be divided.

[0003] The existing patent CN218711263U discloses a yarn feeding device for a circular weft-knitting machine, which comprises a frame and a mounting plate. A plurality of connecting rods are fixedly installed on the frame, and a plurality of yarn loop cylinders are arranged on the outer wall of the connecting rods. A support arm is hingedly connected to the lower side of one side of the mounting plate. A slide is formed in one side of the frame. A hydraulic telescopic rod is fixedly installed on the lower side of one side of the mounting plate. A sliding block is fixedly installed on the driving end of the hydraulic telescopic rod. The yarn feeding device adjusts the height of the yarn feeding structure by the cooperation of the frame, the support arm, the mounting plate, the slide, the sliding block, and the hydraulic telescopic rod, which facilitates the installation of the yarn cylinder by the operator and solves the inconvenience and safety problems caused by the need to pad or climb to the top of the machine platform when installing the yarn loop of the traditional yarn feeding device.

[0004] However, the above-mentioned yarn feeding device still has the following problems in use: although the height of the yarn feeding structure can be adjusted and the yarn loop cylinder can be installed and removed, the yarn loop cylinder needs to be removed from the connecting rod before the yarn cylinder is installed, and then the yarn cylinder is installed on the connecting rod after being sleeved. Due to the large number of yarn loop cylinders, the above-mentioned operation needs to be repeated one by one, which cannot realize efficient and rapid installation and removal, resulting in a decrease in practicability. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve at least one of the technical problems in the related art to some extent.

[0006] Therefore, the utility model aims to provide a circular weft-knitting machine. The circular weft-knitting machine does not need to remove the yarn loop cylinder as a whole, can fix and loosen the inner cylinder by rotating the outer cylinder, directly sleeves the yarn cylinder outside the inner and outer cylinders, greatly reduces repeated operations, adjusts the height of the installation frame by the electric telescopic rod, avoids climbing and padding, adapts to different scenes, ensures the stability of the inner cylinder by the screw rod cooperating with the fixing disc, protects the yarn cylinder by the spring structure of the elastic stopper, adjusts the spring force of the rotating stop seat, guarantees the coaxiality by the inner positioning cylinder and the outer positioning cylinder, and improves the yarn feeding stability and the operation efficiency.

[0007] To achieve the above-mentioned purpose, the utility model provides a circular weft-knitting machine, which comprises a mounting plate, an installation frame, and a yarn loop cylinder. A cylinder groove is formed on the surface of the connecting frame of the installation frame. A stop frame is arranged on the inner wall of the cylinder groove. The yarn loop cylinder comprises:

[0008] Inner cylinder: one end surface is provided with a rotating seat, the other end surface is provided with a ring table, the ring table is located in the inner surface of the cylinder groove and is provided with a half ring part;

[0009] Outer cylinder: the end surface away from the rotating seat is uniformly provided with an elastic stopper, the end surface close to the rotating seat is sleeved outside the connecting shaft of the rotating seat and is fixedly connected with the surface of the connecting shaft through an elastic clamping piece, the surface of the outer cylinder and the surface of the rotating seat correspondingly arranged are respectively provided with a limiting groove and a tapered guide block, one end of the tapered guide block is horizontally and slidingly connected to the inner wall of the limiting groove and is slidingly connected to the end surface of the elastic stopper inside the limiting groove;

[0010] Screw rod: threadedly connected to the inner wall of the inner cylinder, one end of the screw rod penetrates into the inner part of the cylinder groove and is eccentrically fixedly connected with a fixed disc, the fixed disc is respectively abuttingly connected with the inner wall of the cylinder groove and the surface of the stopper, the other end of the screw rod penetrates into the inner part of the outer cylinder and is fixedly connected with a key rod, the key rod is horizontally and slidingly connected to the inner wall of the outer cylinder and is key-connected.

[0011] In addition, according to the above-mentioned application, the circular weft knitting machine can also have the following additional technical features:

[0012] Specifically, the inner wall of the cylinder groove is coaxially provided with an inner positioning cylinder, the stopper is arranged on the inner wall of the inner positioning cylinder, the surface of the ring table is provided with an outer positioning cylinder, the half ring part is arranged on the inner wall of the outer positioning cylinder, the outer positioning cylinder is located inside the cylinder groove and is sleeved outside the inner positioning cylinder, and the half ring part is located inside the inner positioning cylinder and is slidingly connected with the inner wall of the inner positioning cylinder.

[0013] Specifically, the elastic stopper includes an arc-shaped sliding block, a tapered stopper, a first spring, a one-bar frame and a second spring, wherein,

[0014] The inner wall of the sliding cavity is provided with an inner through groove at a position corresponding to the limiting groove, and the inner through groove is in communication with the inner part of the limiting groove, and the surface of the outer cylinder is provided with an outer through groove at a position corresponding to the inner through groove;

[0015] The arc-shaped sliding block is horizontally and slidingly connected to the inner wall of the sliding cavity and the inner through groove, the tapered stopper is vertically and slidingly connected to the inner wall of the arc-shaped sliding block and is fixedly connected with the first spring between the inner wall of the arc-shaped sliding block, the top of the tapered stopper penetrates out of the outer part of the outer cylinder through the outer through groove, the bottom of the tapered stopper penetrates into the inner part of the limiting groove through the inner through groove and is slidingly connected with the surface of the tapered guide block, the bottom of the tapered stopper is provided with a tapered part matched with the outer shape and size of the tapered guide block, the one-bar frame is fixedly connected to the surface of the arc-shaped sliding block, one end of the one-bar frame is horizontally and slidingly connected to the inner wall of the stopper seat inside the outer cylinder, the second spring is sleeved outside the guide shaft of the one-bar frame, one end of the second spring is fixedly connected with the surface of the one-bar frame, and the other end of the second spring is abuttingly connected with the surface of the stopper seat.

[0016] Specifically, the blocking seat is screwed on the inner wall of the outer cylinder, the inner side surface of the blocking seat is rotationally connected with an adjusting seat, the surface of the adjusting seat is provided with a guide hole corresponding to the position of the guide shaft of the letter rack, one end of the guide shaft is located in the guide hole and is slidingly connected with the inner wall of the guide hole, the second spring is sleeved on the outer side of the guide shaft, one end of the second spring is fixedly connected with the surface of the letter rack, and the other end of the second spring is abuttingly connected with the surface of the adjusting seat.

[0017] Specifically, the surface of the connecting shaft is provided with a clamping hole corresponding to the position of the elastic clamping piece, and the elastic clamping piece is clamped and fixed in the clamping hole.

[0018] The surface of the connecting shaft is provided with a guide groove and a guide strip corresponding to the positions of the guide groove and the guide strip on the inner wall of the outer cylinder, and the guide strip is slidingly connected to the inner wall of the guide groove.

[0019] The inner wall of the outer cylinder is provided with a key groove matching the outer dimensions of the key rod corresponding to the position of the key rod, and the key rod is slidingly connected to the inner wall of the key groove and is keyed.

[0020] The inner wall of the outer cylinder is provided with an internal thread corresponding to the position of the blocking seat, and the surface of the blocking seat is provided with an external thread.

[0021] Specifically, a push rod is arranged between the mounting plate and the mounting frame, and the two ends of the push rod are hingedly fixed to the surfaces of the mounting plate and the mounting frame.

[0022] The surface of the mounting plate is fixedly connected with an electric telescopic rod, the surface of the side of the mounting frame close to the electric telescopic rod is provided with a sliding groove, the inner wall of the sliding groove is slidingly connected with a sliding block, and the output end of the electric telescopic rod is fixedly connected to the surface of the sliding block.

[0023] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model.

[0024] Compared with the prior art, the utility model has the beneficial effects that:

[0025] 1. Efficient and convenient installation and disassembly: the inner cylinder can be fixed and loosened by rotating the outer cylinder without the need to disassemble the yarn ring cylinder from the connecting rod, the yarn cylinder is directly sleeved on the outer sides of the inner cylinder and the outer cylinder, the repeated operation is greatly reduced, the quick installation and disassembly are realized, and the operation efficiency is improved;

[0026] 2. Safe operation and strong adaptability: the electric telescopic rod drives the height adjustment of the mounting frame, the operator is prevented from climbing or working on a cushion, and the safety risk is reduced; the height adjustment range is flexible, and is suitable for operators and installation scenes of different heights;

[0027] 3. Stable and protective for the yarn bobbin: The screw thread connection, combined with the contact limit between the fixing plate and the baffle, ensures that the inner bobbin is stable after installation and is not easy to slip; the spring structure of the elastic baffle achieves elastic contact with the yarn bobbin, avoiding damage to the yarn bobbin caused by hard compression;

[0028] 4. Flexible adjustment and high practicality: The second spring force can be adjusted by rotating the stop to adapt to the limiting requirements of different yarn bobbins. The coaxial cooperation of the inner and outer positioning cylinders ensures the coaxiality of the yarn bobbin during rotation, reduces swaying and deviation, and improves yarn feeding stability. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0030] Figure 1 This is a schematic diagram of the structure of a circular weft knitting machine according to the present invention;

[0031] Figure 2 This utility model relates to a circular weft knitting machine. Figure 1 Enlarged structural diagram at point A in the diagram;

[0032] Figure 3 This is a schematic diagram of the yarn loop cylinder structure in a circular weft knitting machine according to the present invention;

[0033] Figure 4 This is a schematic diagram of the inner cylinder structure in a circular weft knitting machine according to the present invention;

[0034] Figure 5 This is a schematic diagram of the semi-ring structure in a circular weft knitting machine according to the present invention;

[0035] Figure 6 This is a schematic diagram of a limiting groove structure in a circular weft knitting machine according to the present invention;

[0036] Figure 7 This is a schematic diagram of the sliding cavity structure in a circular weft knitting machine according to the present invention;

[0037] Figure 8 This is a schematic diagram of an elastic stop block structure in a circular weft knitting machine according to the present invention;

[0038] Figure 9 This is a schematic diagram of the screw structure in a circular weft knitting machine according to the present invention.

[0039] As shown in the figure:

[0040] 1. Mounting plate; 11. Push rod; 12. Electric telescopic rod;

[0041] 2. Mounting frame; 21. Connecting bracket; 22. Slot; 23. Stop; 24. Inner positioning cylinder;

[0042] 3, bobbin; 31, inner cylinder; 311, rotating seat; 3110, connecting shaft; 3111, tapered guide block; 3112, clamping hole; 312, ring table; 3121, outer positioning cylinder; 313, half ring part;

[0043] 32, outer cylinder; 321, elastic stopper; 3211, arc-shaped sliding block; 3212, tapered stopper; 3213, first spring; 3214, straight bracket; 3215, second spring; 322, elastic clamping piece; 323, limiting groove;

[0044] 33, screw rod; 331, fixed disc; 332, key rod;

[0045] 100, blocking seat; 101, adjusting seat; 200, guide groove; 300, guide strip; 400, key groove; 500, sliding cavity; 600, outer through groove. DETAILED DESCRIPTION

[0046] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0047] A circular weft knitting machine is described below according to an embodiment of the present application.

[0048] As shown in the drawings, Figures 1-9 A circular weft knitting machine according to an embodiment of the present application includes a mounting plate 1, a mounting frame 2 and a bobbin 3. The mounting frame 2 has a connecting frame 21 with a cylinder groove 22 formed on the surface thereof, and the cylinder groove 22 has a blocking frame 23 arranged on the inner wall thereof. The bobbin 3 includes:

[0049] The inner cylinder 31 has a rotating seat 311 arranged on one end surface thereof, and a ring table 312 arranged on the other end surface thereof. The ring table 312 has a half ring part 313 arranged on one end surface thereof inside the cylinder groove 22.

[0050] The outer cylinder 32 has elastic stoppers 321 arranged on the end surface thereof away from the rotating seat 311. The outer cylinder 32 is sleeved on the outer side of the connecting shaft 3110 of the rotating seat 311 and is fixedly connected to the surface of the connecting shaft 3110 by the elastic clamping piece 322. The outer cylinder 32 has a limiting groove 323 and a tapered guide block 3111 arranged on the surface thereof corresponding to the position of the surface of the rotating seat 311. The tapered guide block 3111 is horizontally and slidably connected to the inner wall of the limiting groove 323 and is slidably connected to the end surface of the elastic stopper 321 inside the limiting groove 323.

[0051] Screw rod 33: threaded connection in the inner wall of the cylinder 31, one end of the screw rod 33 penetrates into the inner part of the cylinder groove 22, and is eccentrically fixedly connected with the fixed disc 331, the fixed disc 331 is respectively connected with the inner wall of the cylinder groove 22 and the surface of the baffle 23, the other end of the screw rod 33 penetrates into the inner part of the outer cylinder 32, and is fixedly connected with the key rod 332, the key rod 332 is horizontally slidingly connected with the inner wall of the outer cylinder 32, and is keyed.

[0052] It should be noted that the surface of the fixed disc 331 described in this embodiment is provided with anti-skid lines.

[0053] The specific working principle is as follows:

[0054] 1. Overall height adjustment principle: the mounting plate 1 is hingedly connected with the mounting frame 2 through the push rod 11, the electric telescopic rod 12 on the mounting plate 1 drives the sliding block to slide along the sliding groove of the mounting frame 2, when the sliding block moves, due to the existence of the push rod 11, the hinged joint between the push rod 11 and the mounting frame 2 will make a downward circular motion around the hinged joint between the push rod 11 and the mounting plate 1, so that the mounting frame 2 moves downward as a whole, realizing the height adjustment of the yarn feeding structure and adapting to the installation requirements of the operator.

[0055] 2. Yarn ring cylinder 3 fixing principle: when the inner cylinder 31 is installed, the outer positioning cylinder 3121 is inserted into the inner part of the cylinder groove 22 until the ring table 312 abuts against the connecting frame 21, in this process, the outer positioning cylinder 3121 enters the inner part of the cylinder groove 22 and is sleeved outside the inner positioning cylinder 24, the half ring part 313 and the fixed disc 331 enter the inner part of the inner positioning cylinder 24 together and do not contact the baffle 23, at this time, the half ring part 313 abuts against the inner wall of the inner positioning cylinder 24 and is symmetrically arranged with the baffle 23;

[0056] Then rotate the outer cylinder 32, cooperate the key rod 332 with the key groove 400 of the outer cylinder 32, synchronously drive the rotating seat 311, the screw rod 33 and the fixed disc 331 to rotate;

[0057] The screw rod 33 cooperates with the threads of the inner cylinder 31, so that the fixed disc 331 rotates and axially moves until it abuts against the inner wall of the cylinder groove 22 and the surface of the baffle 23, and realizes the fixation of the inner cylinder 31 through cooperation with the half ring part 313.

[0058] 3. Yarn cylinder limiting and dismounting principle: after installing the yarn cylinder, the outer cylinder 32 is pushed inward, the elastic clamping piece 322 is separated from the original clamping hole 3112 and clamped into the new clamping hole 3112, the tapered guide block 3111 continues to extend into the limiting groove 323 and extrudes the tapered stop block 3212, so that it stretches the first spring 3213 and extends out of the outer cylinder 32, limiting the end face of the yarn cylinder;

[0059] The arc-shaped sliding block 3211 cooperates with the second spring 3215 to make the conical stopper 3212 elastically contact the yarn cylinder; the rotating stopper 100 can adjust the position of the adjusting seat 101, thereby adjusting the elastic force of the second spring 3215;

[0060] When disassembling, the outer cylinder 32 is pulled outward, the conical guide block 3111 is separated from the conical stopper 3212, the conical stopper 3212 is retracted under the action of the first spring 3213, the fixed disc 331 is reset and separated from the inner wall of the cylinder groove 22 and the surface of the stopper 23 by reversely rotating the outer cylinder 32, and then the inner cylinder 31 can be taken out.

[0061] In an embodiment of the utility model, as shown in Figures 1-9 The inner wall of the cylinder groove 22 is coaxially provided with an inner positioning cylinder 24, the stopper 23 is arranged on the inner wall of the inner positioning cylinder 24, the surface of the ring table 312 is provided with an outer positioning cylinder 3121, the half ring part 313 is arranged on the inner wall of the outer positioning cylinder 3121, the outer positioning cylinder 3121 is located inside the cylinder groove 22 and is sleeved outside the inner positioning cylinder 24, and the half ring part 313 is located inside the inner positioning cylinder 24 and is in sliding connection with the inner wall of the inner positioning cylinder 24.

[0062] It should be noted that the cooperation relationship and fixing principle of the half ring part 313, the fixed disc 331 and the inner positioning cylinder 24 described in the embodiment are as follows:

[0063] 1. Core cooperation relationship of the three: the inner positioning cylinder 24 is a common action carrier of the half ring part 313 and the fixed disc 331 and has a cylindrical structure; the half ring part 313 has an arc-shaped structure, is fixed on the inner wall of the outer positioning cylinder 3121, is sleeved outside the inner positioning cylinder 24 and extends into the inner positioning cylinder 24, and always keeps close to one side of the inner wall of the inner positioning cylinder 24; the fixed disc 331 is eccentrically connected to the end of the screw rod 33, has a gap with the other side of the inner wall of the inner positioning cylinder 24 in the initial state, can be moved to the side and abutted after the screw rod 33 is rotated, and finally forms a “two-side clamping” structure with the half ring part 313, and realizes the fixing of the inner cylinder 31 and the inner positioning cylinder 24 together.

[0064] 2. Specific fixing process

[0065] Initial assembly positioning: the outer positioning cylinder 3121 (together with the half ring part 313 on the inner wall) is sleeved outside the inner positioning cylinder 24, the half ring part 313 naturally extends into the inner positioning cylinder 24, at this time, the arc-shaped surface of the half ring part 313 is closely attached to one side of the inner wall of the inner positioning cylinder 24, and provides a reference for subsequent fixing; at the same time, the fixed disc 331 at the end of the screw rod 33 extends into the inner positioning cylinder 24 together with the inner cylinder 31, and the fixed disc 331 does not contact the other side of the inner wall of the inner positioning cylinder 24, and is in a state to be fixed.

[0066] Rotary driving abutment: hold the inner cylinder 31 still, rotate the outer cylinder 32, the outer cylinder 32 is connected with the key of the key rod 332 through the key groove 400, drives the key rod 332 to rotate synchronously, and then drives the screw rod 33 to rotate; since the screw rod 33 is in threaded cooperation with the inner cylinder 31, the screw rod 33 will move axially along the axial line to the direction close to the inner wall of the inner positioning cylinder 24 when rotating, and simultaneously drives the eccentrically connected fixed disc 331 to move.

[0067] Both sides are fixed by clamping: when the screw rod 33 moves to the preset position, the outer edge of the fixed disc 331 abuts against the other side of the inner wall of the inner positioning cylinder 24, at this time, the half ring part 313 is attached to one side of the inner wall of the inner positioning cylinder 24, and the fixed disc 331 abuts against the other side of the inner wall, and the two form a "radial clamping" force with the same axis as the reference; the force is transmitted to the inner cylinder 31 through the outer positioning cylinder 3121, and finally the inner cylinder 31 is stably fixed on the inner positioning cylinder 24 in combination with the fixed connection of the inner cylinder 31 and the outer positioning cylinder 3121, so that the radial shaking or axial displacement of the inner cylinder 31 is avoided.

[0068] Specifically, the coaxial cooperation structure of the inner positioning cylinder 24 and the outer positioning cylinder 3121 can effectively limit the radial deviation of the components, greatly improve the stability of the overall structure during assembly and operation, and the sliding cooperation of the half ring part 313 and the inner positioning cylinder 24 also provides guidance guarantee for the precise butt joint of the components.

[0069] In an embodiment of the present application, as shown in Figures 1-9 The elastic stopper 321 includes an arc-shaped sliding block 3211, a tapered stopper 3212, a first spring 3213, a one-bar frame 3214 and a second spring 3215, wherein,

[0070] The outer cylinder 32 is internally provided with a sliding cavity 500, the inner wall of the sliding cavity 500 is provided with an inner through groove at a position corresponding to the position of the limiting groove 323, and is in communication with the inside of the limiting groove 323, and the surface of the outer cylinder 32 is provided with an outer through groove 600 at a position corresponding to the position of the inner through groove;

[0071] The arc-shaped sliding block 3211 is horizontally and slidingly connected in the sliding cavity 500 and the inner through groove inner wall respectively, the conical block 3212 is vertically and slidingly connected in the arc-shaped sliding block 3211 inner wall, and the first spring 3213 is fixedly connected between the arc-shaped sliding block 3211 inner wall and the conical block 3212, the conical block 3212 top penetrates out of the outer cylinder 32 outside through the outer through groove 600, the conical block 3212 bottom penetrates into the limiting groove 323 inside through the inner through groove, and is slidingly connected with the conical guide block 3111 surface, the conical block 3212 bottom is provided with a conical part matched with the conical guide block 3111 outer shape size, the one-frame 3214 is fixedly connected on the arc-shaped sliding block 3211 surface, one end of the one-frame 3214 is horizontally and slidingly connected in the baffle seat 100 inner wall in the outer cylinder 32 inside, the second spring 3215 is sleeved on the guide shaft outer side of the one-frame 3214, one end of the second spring 3215 is fixedly connected with the one-frame 3214 surface, and the other end of the second spring 3215 is abuttingly connected with the baffle seat 100 surface.

[0072] Specifically, the structure and connection relationship of the elastic block 321 are further described, and the working principle of the elastic block 321 is as follows:

[0073] 1, limiting trigger: when the outer cylinder 32 is pushed inwards, the conical guide block 3111 moves with the outer cylinder 32 and continues to extend into the limiting groove 323, the surface of the conical guide block 3111 is in contact with the conical part at the bottom of the conical block 3212 and is extruded, the conical block 3212 is vertically and upwardly slid along the inner wall of the arc-shaped sliding block 3211, the first spring 3213 is stretched at the same time, until the top of the conical block 3212 penetrates through the outer through groove 600 and extends out of the outer cylinder 32, and the yarn cylinder end face sleeved on the outer side of the outer cylinder 32 is limited;

[0074] 2, elastic buffering: if the yarn cylinder generates a reverse force on the conical block 3212, the arc-shaped sliding block 3211 will slide horizontally along the inner wall of the sliding cavity 500 and the inner through groove, the one-frame 3214 is synchronously moved and the second spring 3215 is compressed, the reverse force is offset by the elastic force of the second spring 3215, the elastic contact with the yarn cylinder is realized, and the yarn cylinder is prevented from being damaged by hard extrusion;

[0075] 3, reset release: when the outer cylinder 32 is pulled outwards, the conical guide block 3111 is separated from the conical block 3212, the first spring 3213 restores the deformation and drives the conical block 3212 to reset vertically downward, the second spring 3215 also restores the deformation and drives the arc-shaped sliding block 3211 and the one-frame 3214 to reset, the top of the conical block 3212 is retracted into the outer cylinder 32, and the limiting of the yarn cylinder is released, so that the yarn cylinder is convenient to disassemble and assemble.

[0076] In an embodiment of the present application, as shown in Figures 1-9As shown, the stop seat 100 is threadedly connected to the inner wall of the outer cylinder 32, the inner side surface of the stop seat 100 is rotationally connected with an adjusting seat 101, the surface of the adjusting seat 101 is provided with a guide hole corresponding to the position of the guide shaft of the one-word frame 3214, one end of the guide shaft is located in the guide hole and is slidingly connected with the inner wall of the guide hole, the second spring 3215 is sleeved outside the guide shaft, one end of the second spring 3215 is fixedly connected with the surface of the one-word frame 3214, and the other end of the second spring 3215 is abuttingly connected with the surface of the adjusting seat 101.

[0077] Specifically, the rotating stop seat 100 can drive the adjusting seat 101 to move along the axis of the outer cylinder 32, change the distance between the adjusting seat 101 and the one-word frame 3214, and then compress the second spring 3215 sleeved on the guide shaft, so as to adjust the elasticity of the second spring 3215, and through the adjustment of the elasticity of the second spring 3215, the pressure requirement of the elastic stop block 321 on different specifications of the yarn cylinder can be adapted, the stability of the limiting can be ensured, and the yarn cylinder can be prevented from being damaged.

[0078] In an embodiment of the utility model, as shown in the figure, Figures 1-9 As shown, the surface of the connecting shaft 3110 is provided with a clamping hole 3112 corresponding to the position of the elastic clamping piece 322, and the elastic clamping piece 322 is clamped and fixed with the clamping hole 3112;

[0079] The surface of the connecting shaft 3110 is provided with a guide groove 200 and a guide strip 300 corresponding to the position of the inner wall of the outer cylinder 32, and the guide strip 300 is slidingly connected to the inner wall of the guide groove 200;

[0080] The inner wall of the outer cylinder 32 is provided with a key groove 400 corresponding to the position of the key rod 332, the key groove 400 is matched with the outer shape size of the key rod 332, the key rod 332 is slidingly connected to the inner wall of the key groove 400, and the key rod 332 is connected with the key groove 400;

[0081] The inner wall of the outer cylinder 32 is provided with an internal thread corresponding to the position of the stop seat 100, and the surface of the stop seat 100 is provided with an external thread.

[0082] It should be noted that the axial lines of the barrel groove 22, the inner positioning barrel 24, the outer positioning barrel 3121, the inner barrel 31, the connecting shaft 3110, the outer barrel 32, the key rod 332, the blocking seat 100, the adjusting seat 101, the fixed disc 331, the half ring part 313 and the screw rod 33 coincide in the embodiment; and the coaxial assembly surfaces of the barrel groove 22 and the inner positioning barrel 24, the sleeving fitting surfaces of the inner positioning barrel 24 and the outer positioning barrel 3121, the assembly surfaces of the outer positioning barrel 3121 and the half ring part 313, the threaded fitting surfaces of the inner barrel 31 and the screw rod 33, the coaxial connection surfaces of the inner barrel 31 and the connecting shaft 3110, the fitting surfaces of the connecting shaft 3110 and the outer barrel 32, the fitting surfaces of the outer barrel 32 and the key rod 332, the threaded fitting surfaces of the outer barrel 32 and the blocking seat 100, the rotating fitting surfaces of the blocking seat 100 and the adjusting seat 101, the guide hole fitting surfaces of the adjusting seat 101 and the guide shaft of the one-letter frame 3214, and the eccentric connection reference surfaces of the screw rod 33 and the fixed disc 331 are all machined based on the coinciding axial line as a reference to ensure that the axial degrees of all related structures are uniform.

[0083] Specifically, the clamping hole 3112 on the surface of the connecting shaft 3110 is matched with the elastic clamping piece 322 of the outer barrel 32, the axial positioning of the outer barrel 32 on the connecting shaft 3110 is realized through clamping fixation, the outer barrel 32 is prevented from sliding at will, the elastic clamping piece 322 is switched in position of the clamping hole 3112 when the outer barrel 32 is pushed, and the demand for limiting the yarn barrel is adapted.

[0084] The guide groove 200 of the connecting shaft 3110 is in sliding fit with the guide strip 300 of the outer barrel 32, the relative rotation of the outer barrel 32 and the connecting shaft 3110 is limited, it is ensured that the outer barrel 32 can only move axially along the connecting shaft 3110, and the movement direction of the component is accurate during operation.

[0085] The key groove 400 on the inner wall of the outer barrel 32 is in key connection and sliding fit with the key rod 332, the key rod 332 is driven to rotate (transmitting torque) when the outer barrel 32 rotates, the key rod 332 is allowed to slide axially along the key groove 400, and the axial displacement demand of the screw rod 33 is adapted.

[0086] The inner thread on the inner wall of the outer barrel 32 is matched with the outer thread of the blocking seat 100, the blocking seat 100 can be rotatably disassembled or adjusted in position, subsequent adjustment of the elastic force of the second spring 3215 is facilitated, and component maintenance and replacement are also facilitated.

[0087] In an embodiment of the utility model, as shown in Figures 1-9 A push rod 11 is arranged between the mounting plate 1 and the mounting frame 2, and the two ends of the push rod 11 are respectively hingedly fixed to the surfaces of the mounting plate 1 and the mounting frame 2.

[0088] The surface of the mounting plate 1 is fixedly connected with an electric telescopic rod 12, a sliding groove is formed in the surface of the mounting frame 2 close to the electric telescopic rod 12, and a sliding block is slidably connected to the inner wall of the sliding groove; and the output end of the electric telescopic rod 12 is fixedly connected to the surface of the sliding block.

[0089] Specifically, a push rod 11 is arranged between the mounting plate 1 and the mounting frame 2, the mounting plate 1 is fixedly connected with an electric telescopic rod 12 on one side, the mounting frame 2 is provided with a sliding groove on one side, a sliding block is slidably connected to the sliding groove, the output end of the electric telescopic rod 12 is fixedly connected to the sliding block, the push rod 11 is hingedly connected to the mounting plate 1 and the mounting frame 2 at two ends, the electric telescopic rod 12 can push the mounting frame 2 to move horizontally, the electric telescopic rod 12 pushes the sliding block to the right side, through the limitation of the push rod 11, the hinged joint between the push rod 11 and the mounting frame 2 will make a circular motion downward around the hinged joint between the push rod 11 and the mounting plate 1, so that the mounting frame 2 moves to the right and downward as a whole, and in the moving process, the sliding block slides on the sliding groove, so that the height of the mounting frame 2 can be adjusted, and the yarn drum is conveniently installed.

[0090] To sum up, the circular weft knitting machine provided by the embodiment of the utility model can realize the fixing and loosening of the inner cylinder 31 by rotating the outer cylinder 32 without the need of disassembling the yarn ring cylinder 3 as a whole, the yarn drum is directly sleeved outside the inner cylinder 31 and the outer cylinder 32, the repeated operation is greatly reduced, the height of the mounting frame 2 is adjusted by the electric telescopic rod 12, the climbing of the elevated place is avoided, different scenes are adapted, the inner cylinder 31 is stably ensured by the cooperation of the screw rod 33 and the fixing disc 331, the spring structure of the elastic stop block 321 protects the yarn drum, the spring elasticity of the rotating stop seat 100 can be adjusted, the coaxiality is ensured by the inner positioning cylinder 24 and the outer positioning cylinder 3121, and the stability of yarn feeding and the operation efficiency are improved.

[0091] In the description of the present specification, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0092] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0093] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and deformations to the above-described embodiments within the scope of the present application.

Claims

1. A circular weft knitting machine comprising a mounting plate (1), a mounting frame (2) and a ball winder (3), characterized in that, The connecting frame (21) of the mounting frame (2) is provided with a barrel groove (22) on the surface, and the inner wall of the barrel groove (22) is provided with a blocking frame (23). The inner barrel (31) is provided with a rotating seat (311) on one end surface and an annular table (312) on the other end surface, and the annular table (312) is provided with a half-ring part (313) on one end surface inside the barrel groove (22); The outer barrel (32) is uniformly provided with elastic stoppers (321) on one end surface away from the rotating seat (311), is sleeved outside the connecting shaft (3110) of the rotating seat (311) on one end close to the rotating seat (311), and is fixedly connected with the surface of the connecting shaft (3110) through an elastic clamping piece (322). The surface of the outer barrel (32) and the surface of the rotating seat (311) are respectively provided with a limiting groove (323) and a tapered guide block (3111) at positions corresponding to each other. The tapered guide block (3111) is horizontally and slidingly connected to the inner wall of the limiting groove (323), and is slidingly connected to one end surface of the elastic stopper (321) inside the limiting groove (323). The screw rod (33) is threadedly connected to the inner wall of the inner barrel (31). One end of the screw rod (33) penetrates into the inside of the barrel groove (22) and is eccentrically fixedly connected with a fixed disc (331). The fixed disc (331) is in abutting connection with the inner wall of the barrel groove (22) and the surface of the blocking frame (23), respectively. The other end of the screw rod (33) penetrates into the inside of the outer barrel (32) and is fixedly connected with a key rod (332). The key rod (332) is horizontally and slidingly connected to the inner wall of the outer barrel (32) and is key-connected.

2. The circular weft knitting machine according to claim 1, characterized in that, The inner wall of the barrel groove (22) is coaxially provided with an inner positioning barrel (24), and the blocking frame (23) is arranged on the inner wall of the inner positioning barrel (24). The surface of the annular table (312) is provided with an outer positioning barrel (3121), and the half-ring part (313) is arranged on the inner wall of the outer positioning barrel (3121). The outer positioning barrel (3121) is located inside the barrel groove (22) and is sleeved outside the inner positioning barrel (24). The half-ring part (313) is located inside the inner positioning barrel (24) and is slidingly connected with the inner wall of the inner positioning barrel (24).

3. The circular weft knitting machine according to claim 1, characterized in that, The elastic stopper (321) comprises an arc-shaped sliding block (3211), a tapered stopper (3212), a first spring (3213), a one-character frame (3214) and a second spring (3215). The one-character frame (3214) is provided with a first spring (3213) and a second spring (3215) on the inner wall of the outer positioning barrel (3121). The inner wall of the sliding cavity (500) is provided with an inner through groove at a position corresponding to the limiting groove (323) and is in communication with the inside of the limiting groove (323). The surface of the outer barrel (32) is provided with an outer through groove (600) at a position corresponding to the inner through groove. The arc-shaped sliding block (3211) is horizontally and slidingly connected in the sliding cavity (500) and the inner through groove, the conical block (3212) is vertically and slidingly connected in the inner wall of the arc-shaped sliding block (3211), and the first spring (3213) is fixedly connected between the inner wall of the arc-shaped sliding block (3211) and the conical block (3212), the top of the conical block (3212) penetrates out of the outer wall of the outer cylinder (32) through the outer through groove (600), the bottom of the conical block (3212) penetrates into the inner wall of the limiting groove (323) through the inner through groove, and the conical block (3212) is slidingly connected with the surface of the conical guide block (3111), the bottom of the conical block (3212) is provided with a conical part matched with the outer shape size of the conical guide block (3111), the one-word frame (3214) is fixedly connected to the surface of the arc-shaped sliding block (3211), one end of the one-word frame (3214) is horizontally and slidingly connected to the inner wall of the blocking seat (100) in the outer cylinder (32), the second spring (3215) is sleeved outside the guide shaft of the one-word frame (3214), one end of the second spring (3215) is fixedly connected to the surface of the one-word frame (3214), and the other end of the second spring (3215) is abuttingly connected to the surface of the blocking seat (100).

4. The circular weft knitting machine according to claim 3, characterized in that, The blocking seat (100) is screwedly connected to the inner wall of the outer cylinder (32), the adjusting seat (101) is rotatably connected to the inner side surface of the blocking seat (100), the guide holes are formed in positions of the surface of the adjusting seat (101) corresponding to the guide shaft of the one-word frame (3214), one end of the guide shaft is located in the guide hole and is slidingly connected with the inner wall of the guide hole, the second spring (3215) is sleeved outside the guide shaft, one end of the second spring (3215) is fixedly connected to the surface of the one-word frame (3214), and the other end of the second spring (3215) is abuttingly connected to the surface of the adjusting seat (101).

5. The circular weft knitting machine according to claim 1, characterized in that, The clamping holes (3112) are formed in positions of the surface of the connecting shaft (3110) corresponding to the elastic clamping pieces (322), and the elastic clamping pieces (322) are clamped and fixed in the clamping holes (3112); The guide grooves (200) and the guide strips (300) are arranged at positions of the surface of the connecting shaft (3110) corresponding to the inner wall of the outer cylinder (32), and the guide strips (300) are horizontally and slidingly connected to the inner wall of the guide grooves (200); The key grooves (400) matched with the outer shape size of the key rods (332) are arranged at positions of the inner wall of the outer cylinder (32) corresponding to the key rods (332), the key rods (332) are horizontally and slidingly connected to the inner wall of the key grooves (400), and the key rods (332) are in key connection; The inner threads are arranged at positions of the inner wall of the outer cylinder (32) corresponding to the blocking seat (100), and the outer threads are arranged on the surface of the blocking seat (100).

6. The circular weft knitting machine according to claim 1, characterized in that: The push rod (11) is arranged between the mounting plate (1) and the mounting frame (2), and the two ends of the push rod (11) are hingedly fixed to the surfaces of the mounting plate (1) and the mounting frame (2). The mounting plate (1) is fixedly connected with an electric telescopic rod (12) on the surface, a sliding groove is arranged on the surface of the side of the mounting frame (2) close to the electric telescopic rod (12), and a sliding block is slidably connected to the inner wall of the sliding groove, and the output end of the electric telescopic rod (12) is fixedly connected with the surface of the sliding block.

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