CN211057354U - Fixing device for double-needle-cylinder loom - Google Patents

Abstract

The utility model provides a double-cylinder loom fixing device, double-cylinder loom includes support frame, upper needle cylinder and lower needle cylinder, the transmission shaft is passed through to the bottom of upper needle cylinder and lower needle cylinder and is connected, the transmission shaft drives upper needle cylinder and the coaxial rotation of lower needle cylinder go up the inside tractive device that sets up of needle cylinder the outside of upper needle cylinder is close to the position cover of upper end and establishes fixed sleeve the inside overspeed device tensioner that sets up of lower needle cylinder, tractive device moves down and compresses tightly the fabric on overspeed device tensioner. Different parts of the fabric are alternately pressed on the tensioning bowl of the tensioning device by the traction device, so that the fabric is prevented from being accumulated inside the needle cylinder, the flatness is ensured, the grains are clear, and the integral aesthetic feeling is improved. The rubber ring is sleeved at the bottom of the first clamping sleeve and the bottom of the second clamping sleeve, and the fabric is tightly pressed on the hard tensioning device through the rubber ring, so that the friction to the fabric is reduced, and the quality of the fabric product is improved.

Description

Fixing device for double-needle-cylinder loom

Technical Field

The utility model relates to the technical field of knitting, in particular to double-cylinder loom fixing device.

Background

Knitting machines with needles arranged on a circular needle cylinder for the production of circular weft-knitted fabrics, circular knitting machines for short. The circular loom consists of mainly yarn feeding mechanism, weaving mechanism, drawing-winding mechanism and driving mechanism. Circular knitting machines include both single-needle cylinder and double-needle cylinder types. The single needle cylinder is only woven by the next needle cylinder; the prepared fabric rib top is double-layer, and the single-needle-cylinder loom has more thread ends and feels slightly tight when in jacquard. The double needle cylinders adopt an upper needle cylinder and a lower needle cylinder to work simultaneously, and the manufactured fabric rib top is single-layer and comfortable; and the double-needle cylinder jacquard has no thread end; with regard to the weaving effect and the overall wearing comfort of the sock, the double-needle sock is more comfortable than a single-needle sock by one grade, and many users have higher requirements on the quality of the sock and can appoint to do double-needle socks.

Double-cylinder circular machines generally comprise a supporting structure, which is mainly composed of a footing that rests on the ground and supports the lower needle cylinder so that it can rotate about its own axis, which is oriented vertically. The footing also supports, by means of a column that stands vertically from the footing, an upper needle cylinder, which is arranged above and coaxially with respect to a lower needle cylinder.

In the double-cylinder loom, during the knitting process, there may be a case that the fabric is accumulated inside the lower cylinder, especially for the fabric in the long cylinder type, which finally results in the uneven surface of the fabric and affects the product quality.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a fixing device for a double-cylinder loom, so as to solve the problems in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a double-needle-cylinder loom fixing device comprises a supporting frame, an upper needle cylinder and a lower needle cylinder, wherein the bottom ends of the upper needle cylinder and the lower needle cylinder are connected through a transmission shaft, the transmission shaft drives the upper needle cylinder and the lower needle cylinder to coaxially rotate, a traction device is arranged inside the upper needle cylinder, a fixing sleeve is sleeved at the position, close to the upper end, outside the upper needle cylinder, a tensioning device is arranged inside the lower needle cylinder, and the traction device moves downwards to compress fabrics on the tensioning device.

Further, the drawing device is of a pressure type structure and comprises a drawing assembly coaxially arranged, the drawing assembly is sleeved outside the lower end of the central pipe, the tensioning device comprises a base and a tensioning assembly located at the top end of the base, and the top of the tensioning assembly is abutted to the bottom of the drawing assembly.

Further, the traction device further comprises a central tube and a fixing assembly which are coaxially arranged, the fixing assembly is sleeved outside the upper end of the central tube and drives the traction assembly to move up and down, and a fixing sleeve is sleeved outside the fixing assembly.

Further, the tractive subassembly includes first cutting ferrule and second cutting ferrule, the rubber circle is established to the bottom cover of first cutting ferrule and second cutting ferrule, the tensioning subassembly includes a tensioning section of thick bamboo and tensioning bowl, the top of tensioning bowl with the bottom butt of first cutting ferrule or second cutting ferrule.

Furthermore, a sliding groove is formed in the fixing assembly, a sliding block is installed inside the sliding groove, a wavy track is arranged at the top end of the fixing sleeve, and the sliding block can roll along the track.

Further, fixed subassembly includes fixed disk and fixed cylinder, the spout sets up fixed cylinder is close to the position on upper portion, the slider is connected with the slide bar, the quantity of spout equals with the quantity of slide bar, by the slider drives slide bar and tractive subassembly and reciprocates.

Furthermore, the sliding rod comprises a first sliding rod driving the first clamping sleeve to move up and down and a second sliding rod driving the second clamping sleeve to move up and down, and the first sliding rod and the second sliding rod are arranged alternately.

Furthermore, all overlap and be equipped with the spring on first slide bar and the second slide bar still be provided with the fender position hole on first slide bar and the second slide bar, insert the flexible fender position of control spring in the fender position hole through the bolt.

Further, the tensioning bowl is arranged at a position close to the central axis, and the tensioning barrel is sleeved outside the tensioning bowl.

Further, the tensioning bowl comprises a bowl-shaped part at the top end and an extension part at the bottom, the bowl-shaped part is arranged in a radial shape and matched with the shape of the upper cover body, and the extension part is arranged in a cylindrical structure.

The utility model provides a fixing device compresses tightly the different positions of fabric on overspeed device tensioner's tensioning bowl in turn by first cutting ferrule and second cutting ferrule, prevents that the fabric from piling up inside the cylinder, further guarantees the roughness for the line is clear, improves whole aesthetic feeling. The rubber ring is sleeved at the bottom of the first clamping sleeve and the bottom of the second clamping sleeve, and the fabric is tightly pressed on the hard tensioning device through the rubber ring, so that the friction to the fabric is reduced, and the quality of the fabric product is improved. And through improving the structure of the tensioning device, in the process that the lower needle cylinder rotates for a circle, the sinker moves towards the upper end and away from the direction of the central axis b twice, so that twice elastic yarn ring retreating is completed, the elastic yarn is prevented from being too tensioned and broken, and the elasticity of the fabric is further ensured.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural view of a double-cylinder loom according to an embodiment of the present invention;

FIG. 2 is a schematic view of a double cylinder loom draft apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic top view of a double cylinder loom draft apparatus according to an embodiment of the present invention;

fig. 4 is an exploded view of a double-cylinder loom drawing device according to an embodiment of the present invention;

FIG. 5 is a partial enlarged view of portion A of FIG. 1;

FIG. 6 is a partial enlarged view of the portion B in FIG. 2;

fig. 7 is a schematic structural diagram of a slider according to an embodiment of the present invention;

fig. 8 is a schematic view illustrating the first ferrule and the second ferrule cooperating with each other when the pulling assembly is in the first state according to the embodiment of the present invention;

fig. 9 is a schematic view illustrating the first ferrule and the second ferrule cooperating with each other when the pulling assembly is in the second state according to the embodiment of the present invention;

FIG. 10 is a schematic structural view of a tensioning device of a double-cylinder loom according to an embodiment of the present invention;

FIG. 11 is a schematic structural view of a track assembly of a tensioning device of a double-cylinder loom according to an embodiment of the present invention;

FIG. 12 is a schematic view of the explosion structure of the tensioning device of the double-cylinder loom according to the embodiment of the present invention;

FIG. 13 is a schematic structural view of a sinker of a double-cylinder loom according to an embodiment of the present invention;

fig. 14 is a partially enlarged view of a portion C in fig. 11.

Description of reference numerals:

1-support frame, 2-upper needle cylinder, 3-lower needle cylinder, 4-base, 5-upper needle cylinder mounting plate, 6-lower needle cylinder mounting plate, 7-transmission shaft, 8-pulling device, 80-central tube, 81-pulling component, 811-first cutting sleeve, 812-second cutting sleeve, 8111-boss, 8112-first sleeve, 8113-first connecting hole, 8121-platform, 8122-second sleeve, 8123-second connecting hole, 82-fixing component, 821, 822-fixing cylinder, 8211-sliding groove, 8212-sliding block, 8213-connecting part, 8214-bending part, 8215-mounting groove, 8216-bearing, 8217-first opening, 8218-second opening, 83-sliding component, 831-first sliding rod, 832-second slide bar, 833-catch hole, 9-tensioning device, 91-tensioning device, 910-track device, 911-lower tensioning cylinder, 912-upper tensioning cylinder, 913-central cylinder, 914-upper cover, 915-lower cover, 9151-bulge, 9152-depression, 916-tensioning bowl, 9161-bowl, 9162-extension, 92-stocking, 93-base, 931-mounting groove, 932-tubing, 10-fixing sleeve, 11-fixing rod, 12-track, 121-crest, 122-trough, 100-fabric, 13-sinker, 131-arc body, 132-bulge

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The descriptions of "first", "second", etc. mentioned in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the present embodiment provides a double-cylinder loom comprising a support frame 1, a cylinder and a fixing device inside the cylinder. The support frame 1 comprises a base 4 for resting on the ground for support, an upper needle cylinder mounting plate 5 and a lower needle cylinder mounting plate 6 located on the upper portion of the base 4. The needle cylinder comprises an upper needle cylinder 2 and a lower needle cylinder 3, the position of the upper needle cylinder 2 close to the top end is connected with the bottom end of the lower needle cylinder 3 through a transmission shaft 7, and the transmission shaft 7 drives the upper needle cylinder 2 and the lower needle cylinder 3 to coaxially rotate.

A plurality of axial grooves are provided on the lateral surface of the upper needle cylinder 2 and on the lateral surface of the lower needle cylinder 3, and the axial grooves on the lateral surface of the upper needle cylinder 2 are aligned with the axial grooves on the lower needle cylinder 3, inside which are housed the knitting crochet needles that can be mutually transferred on command between the axial grooves of the lower needle cylinder and the axial grooves of the upper needle cylinder, achieving the pick-up of the yarn and the formation of the fabric.

As shown in fig. 2 to 9, the fixing device includes a pulling device 8 disposed inside the upper needle cylinder 2 and a tensioning device 9 disposed inside the lower needle cylinder 3, the pulling device 8 is used for pressing the fabric close to the edge onto the tensioning device 9 inside the lower needle cylinder 3 when the fabric is knitted, and the pulling device 8 is configured as a pressure type structure with a large ferrule and a small ferrule, that is, the fabric is pressed downward by the pulling device 8 through pressure. After a certain period of knitting, the drawing device 8 moves downwards relative to the upper needle cylinder 2, so that the bottoms of the large and small cutting sleeves press the part of the fabric close to the stitch against the tensioning device 9, and towards the end of knitting, the drawing device 8 moves upwards, leaves the tensioning device 9, and the fabric falls down to stop falling down the sock tube. Through fixing device's setting in this embodiment, guarantee the planarization of fabric product, especially to the longer fabric of length, promote product quality, the tractive device who adopts moreover compares with prior art, does not need manual operation, reduces the power consumption cost.

The utility model discloses concrete structure to tractive device has carried out further injecing, tractive device 8 includes center tube 80, tractive subassembly 81 and sets up the fixed subassembly 82 on upper portion, the coaxial setting of center tube 80, tractive subassembly 81 and fixed subassembly 82, tractive subassembly 81 cover are established outside the lower extreme of center tube 80 for press the fabric. The pulling assembly 81 is fixedly connected with the fixing assembly 82 through a sliding assembly 83. The fixing component 82 is sleeved outside the upper end of the central tube 80 and used for driving the traction component 81 to move up and down, so that the driving device can drive the upper needle cylinder 2 and the traction device 8 inside the upper needle cylinder to rotate synchronously, and the traction component 81 can move up and down.

The pulling assembly 81 comprises a first ferrule 811 and a second ferrule 812, the first ferrule 811 being disposed inside the second ferrule 812, and the first ferrule 811 having a length greater than the second ferrule 812. The sliding assembly 83 comprises a sliding rod which is divided into a first sliding rod 831 and a second sliding rod 832, the first sliding rod 831 drives the first clamping sleeve 811 to move up and down, the second sliding rod 832 drives the second clamping sleeve 812 to move up and down, so that the first clamping sleeve 811 and the second clamping sleeve 812 are driven by different sliding rods to move up and down relatively, the pressing of different parts of a fabric is realized, and the flatness of the whole quality of the fabric product is ensured. Preferably, the first sliding rod 831 and the second sliding rod 832 are alternately arranged and are respectively arranged in two numbers, so that the two first sliding rods 831 are opposite to each other, and the two second sliding rods 832 are opposite to each other, thereby facilitating the realization of the balance control of the first clamping sleeve 811 and the second clamping sleeve 812, ensuring the stable operation of the double-cylinder loom and reducing the failure rate of equipment.

Further, the first ferrule 811 comprises a boss 8111 at an upper portion and a first sleeve 8112 at a lower portion, the boss 8111 is disposed at a top portion of the first sleeve 7112 and extends away from the upper syringe central axis a. A first connection hole 8113 is formed in the boss 8111, a first sliding rod 831 penetrates through the first connection hole 8113, and a fixing portion is arranged at one end, extending into the first connection hole 8113, of the first sliding rod 831 and used for fixedly connecting the first sliding rod 831 and the boss 8111 of the first sleeve 811.

Preferably, this embodiment is equipped with the rubber circle respectively in the bottom cover of first cutting ferrule and second cutting ferrule, compresses tightly the fabric by the rubber circle, compares with the tractive device of metal material, reduces the wearing and tearing to the fabric, improves product quality.

Further, the second ferrule 812 includes a platform 8121 and a second sleeve 8122, the platform 8121 is disposed on the top of the second sleeve 8122 and extends to approach the upper needle central axis a. And the boss 8111 diameter at the top of the first ferrule 811 is not larger than the inner diameter of the second sleeve 8121, the boss 8111 is located inside the region formed by the platform 8121 and the second sleeve 8122, so that the first ferrule 811 can move up and down inside the second ferrule 812. A second connecting hole 8123 is formed in the platform 8121, a second sliding rod 832 penetrates through the second connecting hole 8123, and a fixing portion is arranged at one end, extending into the second connecting hole 8123, of the second sliding rod 832 and used for fixedly connecting the second sliding rod with the platform of the second clamping sleeve.

Preferably, the sliding assembly 83 further includes a spring, the spring is respectively sleeved on the first sliding rod 831 and the second sliding rod 832, the first sliding rod 831 and the second sliding rod 832 are provided with a blocking hole 833, the blocking hole 833 is inserted into the blocking hole 833 through a plug to control the telescopic blocking position of the spring, the downward movement distance of the first cutting sleeve 811 and the second cutting sleeve 812 can be conveniently controlled according to the thickness of the fabric, and the application range is wide.

The fixing assembly 82 includes a fixing plate 822 and a fixing cylinder 821, and sliding grooves 8211 are provided at a position of the fixing cylinder 821 near an upper portion, and the number of the sliding grooves 8211 is equal to the number of the sliding rods. Preferably, the number of the sliding grooves 8211 is four. The fixed tray 822 is used for limiting the upward movement distance of the sliding block 8212 in the sliding groove 8211 and preventing the sliding block from being separated from the mounting groove. At spout 8211 internally mounted slider 8212, slider 8212's one end is to keeping away from last cylinder central axis a's direction protrusion, and slider 8212's the other end is connected with the slide bar, and slider 8212 highly is less than spout 8211's height for slider 8212 can slide from top to bottom in spout 8211 is inside, thereby realizes that slider 8212 drives the slide bar, drives first cutting ferrule 811 or second cutting ferrule 812 by the slide bar again and reciprocates, makes at the in-process of weaving, and first cutting ferrule and second cutting ferrule compress tightly the fabric in turn.

Further, the slider 8212 includes a connecting portion 8213 and a bending portion 8214, the bending portion 8214 is configured to be an L type structure, one end of the bending portion 8214 in the L type is connected to the connecting portion 8213, the other end of the bending portion 8214 is parallel to the connecting portion 8213, an installation groove 8215 is formed between the connecting portion 8213 and the bending portion 8214, a bearing 8216 is installed in the installation groove 8215, a first opening 8217 is formed in the bending portion 8214, a second opening 8218 is formed in a portion, corresponding to the first opening 8217, of the connecting portion 8213, the connecting shaft penetrates through the first opening 8217, a center hole of the bearing 8216 and the second opening 8218, and the bearing is installed on the slider 8212, so that the bearing 8216 can rotate along the connecting shaft while moving up and down.

Furthermore, a third opening is further formed in the connecting portion 8213, the third opening is perpendicular to the second opening 8218, and the sliding rod penetrates through the third opening and is fixedly connected with the sliding block 8212, so that the sliding block 8212 drives the sliding rod to move up and down.

As a part of the embodiment of the present invention, this embodiment is further provided with a fixing sleeve 10 on the upper portion of the upper needle cylinder mounting plate 5, and the fixing sleeve 10 is sleeved on the position close to the upper end outside the upper needle cylinder 2 and is coaxially disposed with the upper needle cylinder 2. The fixing sleeve 10 is fixedly connected with the support frame 1 through a fixing rod 11. Further, the fixing sleeve 10 is sleeved outside the fixing component 82 of the pulling device 8, so that the fixing component 82 can rotate inside the fixing sleeve 10.

An annular rail 12 is provided at the tip end of the fixed sleeve 10, and a bearing 8216 in the slider 8212 abuts on the rail 12 and can roll along the rail 12. The rail 12 is provided with a wave-shaped structure, so that the sliding block 8212 can move up and down in the rolling process along the rail 12, and the first cutting sleeve or the second cutting sleeve is driven to move. Preferably, a pair of crest portions 121 and a pair of trough portions 122 are provided on the track 12, the crest portions 121 and the trough portions 122 are alternately arranged such that the two crest portions 121 are oppositely arranged in the radial direction of the fixed sleeve 10 and the two trough portions 122 are also oppositely arranged in the radial direction of the fixed sleeve 10. And a smooth transition is arranged between the crest part 121 and the trough part 122, so that a blocking phenomenon in the rotation process of the traction device is prevented, and the running stability of the equipment is improved.

As shown in fig. 10 to 14, the tensioning device 9 comprises a base 93, a hose 92 arranged inside the base 93, and a tensioning assembly 91 located at the top end of the base 93. The base 93, the drop tube 92 and the tensioning assembly 91 are coaxially arranged. The base 93 is a cylindrical structure and used for supporting and protecting the top tensioning assembly 91 to a certain extent and improving the working stability of the top tensioning assembly. The interior of the sock dropping pipe 92 is provided with a mirror surface, so that the surface roughness is improved, the friction with the fabric is reduced, and the quality of the fabric is improved.

Further, the tensioning assembly 91 comprises a lower tensioning cylinder 911, an upper tensioning cylinder 912, a tensioning bowl 916 and a track assembly 910 for guiding the movement of the sinker 13. Lower part tensioning barrel 911 sets up at the top of base 93, with base 93 fixed connection, and lower part tensioning barrel 911 mainly used supports upper portion tensioning barrel 912, increases the stability of the whole operation of tensioning assembly, and on the other hand sets up the tensioning barrel to split type structure convenience and maintains the change, lifting means life at the in-process of loom work operation.

The internal surface that upper portion tensioning cylinder 912 is close to central axis b sets up to the curved surface, and track subassembly 910 keeps away from central axis b's surface also sets up to the curved surface, forms the installation department that is used for installing sinker 13 between two curved surfaces, guarantees that sinker stable installation is inside tensioning unit 91. Further, the sinker 13 includes an arc body 131 and a protrusion 132, the tip of the arc body 131 is provided with a hook, the protrusion 132 is provided at a position of the arc body 131 near the bottom end, the arc body 131 is located between two curved surfaces of the track assembly 910 and the upper tensioning barrel 912, and the protrusion 132 is located in the track assembly 910.

The rail assembly 910 includes an upper cover 914 and a lower cover 915, and a gap is provided between the upper cover 914 and the lower cover 915, the gap accommodating the boss 132 of the sinker 13 therein, the gap forming a wave-shaped rail guiding the movement of the sinker 13. The bottom surface of the upper cover body 914 and the top surface of the lower cover body 915 are both provided with irregular wave-shaped structures, and the structure of the top surface of the lower cover body 915 is taken as an example: the upper surface of the lower cover body 915 is provided with convex parts 9151 and concave parts 9152, the convex parts 9151 and the concave parts 9152 are alternately arranged, the number of the convex parts 9151 is two, and the two convex parts 9151 are separated by the concave parts 9152; in cooperation with the structure of the top surface of the lower cover body 915, the portion of the bottom surface of the upper cover body 914 corresponding to the protruding portion 9151 of the lower cover body 915 is configured to be a concave structure, and the portion of the bottom surface of the upper cover body 914 corresponding to the concave portion 9152 of the lower cover body 915 is configured to be a convex structure, so that the formed wave-shaped track has two wave crests. When the protruding portion 132 of the sinker 13 reaches the peak position of the wavy track, the hook-shaped portion of the arc-shaped body 131 moves in the direction toward the upper end and away from the central axis b to drive the elastic yarn on the knitting crochet needle to move back, so that, in the process of rotating the lower needle cylinder 3 for one circle, the sinker 13 moves twice in the direction toward the upper end and away from the central axis b to complete the elastic yarn back-off twice, thereby avoiding the elastic yarn from being too tensioned and broken and ensuring the elasticity of the fabric.

Further, a tensioning bowl 916 is arranged close to the central axis b, and the top of the tensioning bowl 916 abuts against the bottom of said first or second ferrule 811, 812 when the fixture is in operation. The tensioning bowl 916 includes a top bowl portion 9161 and a bottom extension portion 9162, the bowl portion 9161 is radially configured to match the shape of the upper cover 914, and the extension portion 9162 is configured as a cylindrical structure. The extension portion 9162 separates the fabric from the track assembly 910, prevents the upper and lower edges of the gap of the track assembly 910 from scraping the fabric, and improves the smoothness of the fabric. And the tension bowl 916 also provides some sealing, a central cylinder 913 is provided between the extension 9162 of the tension bowl 916 and the lower tension cylinder 911, and the top end of the central cylinder 913 is used to support the track assembly.

Preferably, this embodiment is provided with mounting groove 931 on the lateral wall of base 93, and mounting groove 931 is inside sunken, and the inside hidden installation oil pipe 932 of mounting groove 931, oil pipe 932's top and track subassembly intercommunication have the lubrication action to the clearance between sinker 13 and the track subassembly 910, reduce the frictional resistance between sinker 13 and the track subassembly 910, improve the smoothness that the complete machine was woven. And set up oil pipe into hidden structure, reduce the occupation of oil pipe to needle section of thick bamboo inner space down, and then for base 93 and inside leg of falling socks provide sufficient space, guarantee that the fabric is level and smooth.

The double-needle-cylinder loom tensioning device provided by the embodiment sets the motion track of the sinker into a wave shape with two wave crests, so that in the process of rotating the lower needle cylinder for a circle, the sinker moves twice in the direction of the upper end and away from the central axis b, twice elastic yarn returning is completed, the elastic yarn is prevented from being excessively tensioned and breaking, and the elasticity of the fabric is ensured. The tensioning barrel is arranged to be of a split structure, so that parts can be maintained and replaced conveniently in the working and running process of the weaving machine, and the service life of the equipment is prolonged.

As a part of the embodiment of the present invention, the fitting relationship between the tension device and the pulling device in the fixing device is described as follows:

firstly, during the weaving process of the loom, according to a predetermined program, after a certain period of time of weaving, the main control system controls the fixing device to start working while weaving, controls the pulling device 8 to start moving downwards relative to the upper needle cylinder until the sliding block in the pulling device 8 abuts on the annular track 12 of the fixing sleeve 10, and simultaneously, enables the bottom of the pulling component 81 to abut on the top of the tensioning component 91.

Secondly, in the process of rotating and knitting the upper needle cylinder 2, the four sliding blocks 8212 and the four sliding rods in the drawing device 8 rotate together with the upper needle cylinder 2, when the sliding block 8212 connected with the first sliding rod 831 rotates to the position of the wave crest 121 and the sliding block 8212 connected with the second sliding rod 832 rotates to the position of the wave trough 122, the first state is recorded, at the moment, the sliding block connected with the first sliding rod 831 drives the first sliding rod 831 and the first sleeve chuck 811 to move upwards, meanwhile, the sliding block connected with the second sliding rod 832 drives the second sliding rod 832 and the second sleeve chuck 812 to move downwards, the rubber ring at the bottom of the second sleeve chuck 812 compresses the fabric at the top of the tension bowl 916 in the tension device 9, and the second sleeve 812 drives the tension bowl 916 to rotate together with the drawing device 8, and the fabric is compressed by the second sleeve 812;

when the slider 8212 connected to the second sliding rod 832 rotates to the position of the wave crest 121 and the slider 8212 connected to the first sliding rod 831 rotates to the position of the wave trough 122, the second state is recorded, at this time, the slider 8212 connected to the second sliding rod 832 drives the second sliding rod 832 and the second ferrule 812 to move upwards, the slider connected to the first sliding rod 831 drives the first sliding rod 831 and the first ferrule 811 to move downwards, the rubber ring at the bottom of the first ferrule 811 presses the fabric on the top of the tension bowl 916 inside the tension device 9, and the first ferrule 811 drives the tension bowl 916 to rotate along with the traction device 8, and the first ferrule 811 presses the fabric.

Thirdly, according to a preset program, when the knitting work is finished, the control device controls the traction device 8 to move upwards, and the first cutting sleeve or the second cutting sleeve is separated from the tensioning bowl.

Realize first cutting ferrule and second cutting ferrule from this and compress tightly the different positions of fabric on overspeed device tensioner's tensioning bowl in turn, further guarantee the roughness for the line is clear, improves whole aesthetic feeling. The rubber ring is sleeved at the bottom of the first clamping sleeve and the bottom of the second clamping sleeve, and the fabric is tightly pressed on the hard tensioning device through the rubber ring, so that the friction to the fabric is reduced, and the quality of the fabric product is improved. And through improving the structure of the tensioning device, in the process that the lower needle cylinder rotates for a circle, the sinker moves towards the upper end and away from the direction of the central axis b twice, so that twice elastic yarn ring retreating is completed, the elastic yarn is prevented from being too tensioned and broken, and the elasticity of the fabric is further ensured.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The double-needle-cylinder loom fixing device comprises a support frame (1), an upper needle cylinder (2) and a lower needle cylinder (3), wherein the bottom ends of the upper needle cylinder (2) and the lower needle cylinder (3) are connected through a transmission shaft (7), the transmission shaft (7) drives the upper needle cylinder (2) and the lower needle cylinder (3) to coaxially rotate, and the double-needle-cylinder loom fixing device is characterized in that a traction device (8) is arranged inside the upper needle cylinder (2), a fixing sleeve (10) matched with the traction device (8) is sleeved at a position, close to the upper end, of the outer portion of the upper needle cylinder (2), a tensioning device (9) is arranged inside the lower needle cylinder (3), and a fabric is tightly pressed on the tensioning device (9) through downward movement of the traction device (8).

2. Double-cylinder weaving machine fixing device according to claim 1, characterized in that the pulling device (8) is provided as a pressure type structure, the pulling device (8) comprises a coaxially arranged pulling assembly (81), the pulling assembly (81) is sleeved outside the lower end of the central tube (80), the tensioning device (9) comprises a base (93) and a tensioning assembly (91) located at the top end of the base (93), and the top of the tensioning assembly (91) abuts against the bottom of the pulling assembly (81).

3. Double-cylinder loom fixing device according to claim 2, characterized in that the pulling device (8) further comprises a central tube (80) and a fixing component (82) which are coaxially arranged, the fixing component (82) is sleeved outside the upper end of the central tube (80) and drives the pulling component (81) to move up and down, and a fixing sleeve (10) is sleeved outside the fixing component (82).

4. Double-cylinder weaving machine fixing device according to claim 2, characterized in that the pulling assembly (81) comprises a first and a second ferrule (811, 812), the bottom of the first and second ferrule (811, 812) being provided with a rubber ring, the tensioning assembly (91) comprising a tensioning cylinder and a tensioning bowl (916), the top of the tensioning bowl (916) abutting the bottom of the first or second ferrule (811, 812).

5. Double-cylinder weaving machine fixing device according to claim 3, characterized in that a runner (8211) is provided on the fixing assembly (82), a slider (8212) is mounted inside the runner (8211), a wave-shaped track (12) is provided at the top end of the fixing sleeve (10), the slider (8212) being able to roll along the track (12).

6. Double-cylinder weaving machine fixing device according to claim 5, characterized in that the fixing assembly (82) comprises a fixed disk (822) and a fixed cylinder (821), the sliding slot (8211) is provided at the position of the fixed cylinder (821) near the upper part, the sliding block (8212) is connected with the sliding rod, the number of the sliding slot (8211) is equal to the number of the sliding rod, and the sliding rod and the pulling assembly (81) are driven by the sliding block (8212) to move up and down.

7. Double-cylinder weaving machine fixing device according to claim 6, characterized in that the sliding rods comprise a first sliding rod (831) which drives the first sleeve (811) up and down and a second sliding rod (832) which drives the second sleeve (812) up and down, the first sliding rod (831) and the second sliding rod (832) being arranged alternately.

8. Double-cylinder loom fixing device according to claim 7, characterized in that a spring is sleeved on both the first (831) and second (832) slide rods, and a stop hole (833) is also provided on the first (831) and second (832) slide rods, and the spring is controlled to extend and retract by inserting a latch into the stop hole (833).

9. Double-cylinder weaving machine fixing device according to claim 4, characterized in that the tensioning bowl (916) is arranged close to the central axis, the tensioning cartridge being arranged outside the tensioning bowl (916).

10. Double-cylinder weaving machine fixture according to claim 4 or 9, characterized in that the tensioning bowl (916) comprises a top bowl (9161) and a bottom extension (9162), the bowl (9161) being arranged radially, matching the shape of the upper cover (914), the extension (9162) being arranged as a cylindrical structure.

Images