CN217174012U - Novel crochet machine capable of producing three-dimensional crochet jacquard fabric - Google Patents

Abstract

The invention provides a novel crochet machine capable of producing a three-dimensional crochet jacquard fabric, which comprises a crochet machine body; the crochet machine body comprises a needle bed and a warp guide bar which are horizontally arranged, and a first weft guide bar and a second weft guide bar are arranged above the needle bed in front and behind; a three-dimensional crochet jacquard device is arranged between the first weft guide bar and the second weft guide bar; the three-dimensional crocheting jacquard device comprises a strip-shaped installation base which is fixedly arranged, row tooth holes are formed in the strip-shaped installation base in groups, jacquard tooth sheets which can slide up and down through the matching of a sliding pair are arranged in the row tooth holes, each jacquard tooth sheet is connected with a reciprocating driving element, and the jacquard tooth sheets can be driven by the reciprocating driving element to extend downwards or be folded upwards. The novel crochet machine can produce the three-dimensional crochet jacquard fabric with patterns on the surface, so that the patterns can be obtained on the surface of the foot pad without printing and dyeing, the production cost is reduced, pollution is avoided, and the novel crochet machine is more environment-friendly.

Description

Novel crochet machine capable of producing three-dimensional crochet jacquard fabric

Technical Field

The application relates to a crochet machine modification and application technology, in particular to a novel crochet machine capable of producing a three-dimensional crochet jacquard fabric.

Background

A conventional crochet machine (see fig. 1 and 2) comprises a needle bed and a warp bar in a horizontal configuration, above which a first weft bar and a second weft bar are arranged in tandem. During operation, a crochet hook is arranged in a needle groove on a needle bed, a looper is arranged in a needle groove on a warp guide bar, needle tubes are arranged in needle grooves on a first weft guide bar and a second weft guide bar, the crochet hook on the needle bed reciprocates back and forth to enable warp threads threaded on the looper to form a loop, the first weft guide bar and the second weft guide bar reciprocate in the left-right direction (the left-right reciprocating motion and the up-down reciprocating motion are combined), and the second weft threads are stacked above the first weft threads and fixed by the looped warp threads. The fabric crocheted by the conventional crocheting machine is planar and is commonly used for producing lace strips, elastic bands and the like.

The wire loop foot pad is a composite foot pad which is formed by compounding a surface fabric and a base pad (the base pad is usually made of PVC, TPR, rubber and the like) through processes of hot melting, coating and scraping, foaming and the like. The surface fabric of the silk loop foot pad is obtained by planting PVC core-spun yarns/PE yarns on base cloth by using a loop velvet machine. Along with the popularization and popularity of the wire coil foot pads, more and more foot pad manufacturers add wire coil foot pad manufacturing ranks, the product is highly homogeneous, the market competition pressure is continuously increased, the product price is gradually detected, the profit margin of the manufacturers is very limited, and the manufacturers face even the situation of loss closure. In view of this, referring to chinese patent document CN 113388957A, CN 113249864A, CN 306911444S, our company developed a three-dimensional crochet modified module for a crochet machine and a crochet machine equipped with the modified module, and produced a three-dimensional crochet fabric using the crochet machine equipped with the three-dimensional crochet modified module, and further developed a composite foot pad (hereinafter referred to as "three-dimensional crochet composite foot pad") using the three-dimensional crochet fabric as a surface fabric.

Compared with a wire loop foot pad, the three-dimensional crocheted composite foot pad developed by the company has the advantages of low cost, attractive surface and the like, and is favored by the market. However, we have found that it still leaves room for improvement. For example: like the silk ring foot pad, if a pattern is required to be obtained on the surface of the foot pad, the three-dimensional crocheted composite foot pad can only be realized through a printing and dyeing process, so that the production cost is increased, and pollution is easily caused.

Disclosure of Invention

Aiming at the problems in the prior art, the application provides the novel crochet machine capable of producing the three-dimensional crochet jacquard fabric, and the crochet machine can produce the three-dimensional crochet jacquard fabric with patterns on the surface, so that patterns can be obtained on the surface of a foot pad without printing and dyeing, the production cost is reduced, pollution cannot be caused, and the novel crochet machine is more environment-friendly.

The application provides the following technical scheme:

the novel crochet machine capable of producing the three-dimensional crochet jacquard fabric comprises a crochet machine body; the crochet machine body comprises a needle bed and a warp guide bar which are horizontally arranged, and a first weft guide bar and a second weft guide bar are arranged above the needle bed in tandem; in a working state, a crochet hook is arranged in a needle groove of a needle bed, a looper is arranged in a needle groove of a warp guide bar, needle tubes are arranged in needle grooves of a first weft guide bar and a second weft guide bar, warp threads are arranged on the needle heads of the looper, and first weft threads and second weft threads are respectively arranged on tube bodies of the corresponding needle tubes in a penetrating manner; a three-dimensional crochet jacquard device is arranged between the first weft guide bar and the second weft guide bar; the three-dimensional crocheting jacquard device comprises a fixedly arranged strip-shaped installation base, wherein row tooth holes are formed in the strip-shaped installation base in groups, jacquard tooth sheets which can slide up and down through the matching of a sliding pair are arranged in the row tooth holes, and each jacquard tooth sheet is connected with a reciprocating driving element and can be driven by the reciprocating driving element to extend downwards or retract upwards; when in work: the crochet needle on the needle bed reciprocates in the front and back directions, the first weft guide bar and the second weft guide bar reciprocate in the left and right directions, the warp is knotted into a loop under the action of the crochet needle, and the first weft and the second weft are fixed; when the jacquard teeth are in an extending state, the second wefts at corresponding positions are blocked by the jacquard teeth and arch to form an arch structure; when the jacquard teeth are in the retracted state, the jacquard teeth have no blocking effect on the second wefts at the corresponding positions so that the second wefts are not arched, or the second wefts at the corresponding positions still have the blocking effect, but the arched height of the second wefts is lower than that of the jacquard teeth in the extended state.

Compared with the prior art (CN 113388957A), the invention achieves the following remarkable progress: according to the invention, the strip-shaped installation base of the three-dimensional crochet jacquard device is provided with row tooth holes in groups, the row tooth holes are internally provided with jacquard teeth which can slide up and down through the matching of a sliding pair, each jacquard tooth is connected with a reciprocating driving element and can be driven by the reciprocating driving element to extend downwards or retract upwards, and when the jacquard teeth are in an extending state in work, second wefts at corresponding positions are blocked by the jacquard teeth and can arch to form an arch structure; when the jacquard teeth are in a retracted state, the jacquard teeth have no blocking effect on the second wefts at the corresponding positions so that the second wefts are not arched, or the second wefts at the corresponding positions still have blocking effect, but the arched height of the second wefts is lower than that of the jacquard teeth in an extended state; by the structure, during production, the surface of the crocheted fabric presents specific patterns (patterns) by controlling the state (extending or retracting) of the jacquard teeth, so that the three-dimensional crocheted jacquard fabric is obtained, the three-dimensional crocheted jacquard fabric is used as a surface layer material of the composite foot pad, and a foot pad product with patterns on the surface can be obtained without a printing and dyeing process, so that the production cost is reduced, pollution is avoided, and the foot pad is more environment-friendly; in addition, the callus on sole product of taking the pattern of production compares the callus on sole product that obtains the pattern through printing and dyeing, and visual effect is novel unique, is favorable to the product popularization.

As an optimized scheme, in the novel crochet machine capable of producing the three-dimensional crochet jacquard fabric, the lower part of the rear side of the jacquard teeth is provided with the inclined guide surface extending to the lower end. Through setting up the slope guide surface, be favorable to second weft to form and break away from the jacquard weave tine behind the hunch-up structure.

Further, the inclined guide surface is a plane, and an inclination angle θ formed with the horizontal line is preferably 50 ° to 80 °. The inclined guide surface is designed to be a plane, so that the inclined guide surface is easy to process, and the inventor finds that when the inclined angle theta formed by the plane-shaped inclined guide surface and the horizontal line is in the range of 50-80 degrees, the second weft is smooth to separate from the second weft three-dimensional forming teeth after forming the arch structure.

Furthermore, the inclined guide surface is connected with the lower end surface of the jacquard tooth sheet through a chamfer or a fillet. The tail end of the rear side of the jacquard tooth sheet is provided with the chamfer or the fillet, so that the jacquard tooth sheet is separated after the second weft yarns form an arch structure.

Further, when the jacquard teeth are in the extended state, the upper end of the inclined guide surface is vertically higher than the needle groove on the needle bed. Therefore, the second weft yarns arch on the inclined guide surface to form an arch structure, after being fixed by the warp yarns, the second weft yarns directly slide downwards from the inclined guide surface, and the effect that the second weft yarns are separated from the jacquard teeth after forming the arch structure is achieved smoothly.

As an optimized scheme, in the novel crochet machine capable of producing the three-dimensional crochet jacquard fabric, two ends of the strip-shaped installation foundation are fixedly connected with the crochet machine body through connecting pieces respectively. The two ends of the strip-shaped mounting base are fixedly connected with the crochet machine body through the connecting pieces respectively, so that the reliability is guaranteed, and the implementation is easy.

Further, the reciprocating drive element is preferably a cylinder. The reciprocating driving element adopts a cylinder and has the characteristics of easy implementation and good reliability.

Further, the upside of strip installation basis is equipped with the cylinder mounting panel, the cylinder is fixed in on the cylinder mounting panel. The structure is changed, and the structure has the advantages of easy manufacture and convenient assembly.

Furthermore, the upper end of the jacquard tooth sheet is provided with a connecting part for connecting the air cylinder to form a 7-shaped structure; the upper ends of two adjacent jacquard teeth face opposite directions. From this, two adjacent cylinders are on the cylinder mounting panel, and the front and back dislocation distributes to can be with the cylinder less of interval setting on the left and right sides orientation, thereby can be with the warp distance D of surface fabric _t The control is small, so that the arch structure formed by the second weft presents a compact distribution state, the visual effect is good, and the arch structure is stable due to the fact that the width of the bottom of the arch structure formed by the second weft is small and the proper arch height is controlled.

Drawings

FIG. 1 is a schematic structural view of a crochet machine body (i.e., a crochet machine of the prior art) in the embodiment;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic structural diagram of a novel crochet machine capable of producing a three-dimensional crochet jacquard fabric according to an embodiment;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is a schematic view showing the working state of the jacquard teeth of the crochet machine of the present invention in an extended state (side view, with the crochet hook, looper and needle tube installed);

FIG. 6 is a schematic view showing the working state of the jacquard teeth under the take-up table in embodiment 1;

FIG. 7 is a schematic view showing the working state of the jacquard teeth under the take-up table in embodiment 2;

FIG. 8 is a schematic structural view of a three-dimensional crochet jacquard device in an embodiment;

FIG. 9 is an enlarged view of the structure within circle C of FIG. 8;

fig. 10 is a front view of the three-dimensional crochet jacquard device of fig. 8;

FIG. 11 is an enlarged view of the structure within circle D of FIG. 10;

fig. 12 is a top view of the three-dimensional crochet jacquard device of fig. 8;

FIG. 13 is a top view of the crochet jacquard device of FIG. 8 with the air cylinder and the air cylinder mounting plate removed;

FIG. 14 is an enlarged view of the structure in circle F of FIG. 13;

fig. 15 is a side view of the three-dimensional crochet jacquard device of fig. 8;

FIG. 16 is a schematic structural view of a jacquard blade in the embodiment;

FIG. 17 is a sample drawing of a three-dimensional crocheted jacquard fabric crocheted by the novel crocheting machine of example 1;

FIG. 18 is a projection view of the A direction of the fabric sample of FIG. 17;

fig. 19 is a sample view of the composite footbed with the three-dimensional crochet jacquard fabric of fig. 17 as a cover material.

Reference numbers in the drawings: 1-a needle bed; 2-warp guide bar; 3-a first weft bar; 4-a second weft bar; 5-three-dimensional crocheting jacquard device, 501-strip installation basis, 502-jacquard tooth sheet, 5021-inclined guide surface, 5022-connecting part, 503-complex driving element and 504-cylinder installation plate; 6-base pad; 7-first weft; 8-second weft; 9-crochet hook; 10-bending the needle; 11-needle tube.

Detailed Description

The present application is further described with reference to the following drawings and detailed description (including examples), but not intended as a basis for the limitations of the present application. In the following examples, the details which are not described in detail are all common knowledge in the art.

Referring to fig. 1-19, the present invention provides a novel crochet machine capable of producing a three-dimensional crochet jacquard fabric, comprising a crochet machine body; the crochet machine body comprises a needle bed 1 and a warp guide bar 2 which are horizontally arranged, and a first weft guide bar 3 and a second weft guide bar 4 are arranged above the needle bed 1 in tandem; in a working state, a crochet hook 9 is arranged in a needle groove of the needle bed 1, a looper 10 is arranged in a needle groove of the warp guide bar 2, needle tubes 11 are arranged in needle grooves of the first weft guide bar 3 and the second weft guide bar 4, warp threads are arranged on needle heads of the looper 10, and first weft threads 7 and second weft threads 8 are respectively arranged on tube bodies of the needle tubes 11 in a penetrating manner; a three-dimensional crochet jacquard device 5 is arranged between the first weft guide bar 3 and the second weft guide bar 4; the three-dimensional crocheting jacquard device 5 comprises a strip-shaped mounting base 501 which is fixedly arranged, row tooth holes are formed in the strip-shaped mounting base 501 in groups, jacquard tooth sheets 502 which can slide up and down through the matching of sliding pairs are arranged in the row tooth holes, and each jacquard tooth sheet 502 is connected with a reciprocating driving element 503 and can be driven by the reciprocating driving element 503 to extend downwards or retract upwards; when in work: the crochet needle on the needle bed reciprocates in the front and back direction, the first weft guide bar 3 and the second weft guide bar 4 reciprocate in the left and right direction, the warp is knotted into a loop under the action of the crochet needle 9, and the first weft 7 and the second weft 8 are fixed; when the jacquard teeth 502 are in the extending state, the second weft threads 8 at the corresponding positions are blocked by the jacquard teeth 502 and arch to form an arch structure; when the jacquard teeth 502 are in the retracted state, the jacquard teeth 502 do not block the second weft 8 at the corresponding position, so that the second weft 8 does not arch, or block the second weft 8 at the corresponding position, but the height of the arch is reduced.

In production, the second weft adopts a PVC core-spun yarn or a PE yarn (or other similar-performance yarns, and it is generally considered that the arched portion can be used as the yarn of the second weft as long as the arched portion can keep the arched state after crocheting), and by controlling the state (extending or retracting) of the jacquard teeth 502, a fabric with a surface pattern can be produced, i.e. the three-dimensional crocheted jacquard fabric in the solution of the present invention (see fig. 17).

The technical solution of the present invention will be further described with reference to the following examples.

Example 1:

in this embodiment, the jacquard teeth 502 satisfy: referring to fig. 5, when the jacquard teeth 502 are in the extended state, the second weft threads 8 in the corresponding positions are blocked by the jacquard teeth 502 and arch to form an arch structure, and the arch height is 4 mm; referring to fig. 6, when the jacquard teeth 502 are in the retracted state, the jacquard teeth 502 have no blocking effect on the second weft threads 8 in the corresponding positions so that they do not arch. (in the production process, if all the jacquard teeth 502 are controlled to be in an extending state in the whole process, the three-dimensional crochet fabric can be produced by the crochet machine which is provided with the three-dimensional crochet refitting assembly and disclosed in CN 113388957A, if all the jacquard teeth 502 are controlled to be in a retracting state in the whole process, the three-dimensional crochet fabric is equivalent to the conventional crochet machine shown in figure 1, if the jacquard teeth 502 are controlled to be in a setting action according to a program, when the jacquard teeth 502 extend, the second weft 8 arches, and when the jacquard teeth 502 are retracted, the second weft does not arch, but is overlapped on the first weft, and because the second weft 8 has a height difference, the pattern can be obtained on the surface of the fabric, the three-dimensional crochet jacquard fabric is produced, and the sample refers to figures 17 and 18.)

In order to make the second weft threads 8 smoothly separate from the jacquard teeth 502 during the production process, in this embodiment: the lower part of the rear side of the jacquard tooth sheet 502 is provided with an inclined guide surface 5021 extending to the lower end; the inclined guide surface 5021 is a plane, and the inclined angle theta formed by the inclined guide surface and the horizontal line is 60 degrees; the inclined guide surface 5021 is connected with the lower end surface of the jacquard tooth piece 502 through a chamfer; when the jacquard teeth 502 are in the extended state, the upper end of the inclined guide surface 5021 is vertically higher than the needle groove on the needle bed 1.

For convenience, in this embodiment, two ends of the strip-shaped mounting base 501 are respectively and fixedly connected with the crochet machine body through a connecting piece.

For convenience of implementation, in this embodiment, the reciprocating driving element 503 is a single-stroke cylinder, and the cylinder is controlled by a PLC.

For convenience, in this embodiment, the upper side of the strip-shaped mounting base 501 is provided with a cylinder mounting plate 504, and the cylinder is fixed on the cylinder mounting plate 504.

In this embodiment, the upper end of the jacquard teeth 502 is provided with a connecting part 5022 for connecting with a cylinder, forming a 7-shaped structure (see fig. 16); the upper ends of two adjacent jacquard blades 502 face in opposite directions (see fig. 14). Two adjacent cylinders are arranged on the cylinder mounting plate 504 in a staggered manner from front to back, so that the distance between the cylinders in the left and right directions is smaller, and the warp distance D of the fabric can be reduced _t The control is small, the arch structure formed by the second weft threads 8 is in a tight distribution state, the visual effect is good, and the arch structure is stable and not prone to deformation due to the fact that the width of the bottom of the arch structure formed by the second weft threads 8 is small and the proper arch height is set.

Example 2:

the difference from example 1 is: in this embodiment, referring to fig. 7, when the jacquard teeth 502 are in the retracted state, the jacquard teeth 502 still block the second weft 8 at the corresponding position, but the arching height is reduced to 2mm (in this embodiment, after the jacquard teeth 502 are retracted upward, the lower ends of the jacquard teeth 502 are still lower than the needle grooves on the needle bed 1, and during crochet, the jacquard teeth 502 still block the second weft 8, and since the rear ends of the jacquard teeth 502 are provided with the inclined guide surfaces 5021, the arching height is reduced).

In the production process: if all the jacquard teeth 502 are in an extended state in the whole process, the novel crochet machine of the embodiment is equivalent to the crochet machine with the three-dimensional crochet modification assembly disclosed in CN 113388957 a, a three-dimensional crochet fabric can be produced, and the arching height of the second weft is 4 mm; if all the jacquard teeth 502 are in the retracted state in the whole process, the novel crochet machine of the embodiment is also equivalent to the crochet machine with the three-dimensional crochet modification assembly disclosed in CN 113388957 a, a three-dimensional crochet fabric can be produced, and the arching height of the second weft is 2 mm; if the jacquard teeth 502 are controlled to set actions according to a program, when the jacquard teeth 502 extend out, the arching height of the second weft 8 is 4mm, and when the jacquard teeth 502 are retracted, the arching height of the second weft 8 is 2mm, and due to the height difference of the second weft 8, patterns can be obtained on the surface of the fabric, and the three-dimensional crochet jacquard fabric is manufactured.

The novel crochet machine is applied to the manufactured three-dimensional crochet jacquard fabric, and patterns on the fabric can be characters (such as a sample shown in figure 17), figures and combination of the characters and the figures.

In the above embodiment, the cylinder is a common single-stroke cylinder, and embodiment 2 can be realized by replacing the jacquard teeth 502 in embodiment 1. If can obtain the adjustable cylinder of stroke that the size is little enough, when implementing this application scheme, adopt the adjustable cylinder of stroke, then can realize through adjusting the cylinder stroke.

The prepared three-dimensional crocheted jacquard fabric is compounded with the base pad 6, so that the composite foot pad (see figure 19) taking the three-dimensional crocheted jacquard fabric as a surface layer material can be obtained, and patterns do not need to be obtained on the surface of the composite foot pad through printing and dyeing.

The above general description of the invention and the description of the specific embodiments thereof, as referred to in this application, should not be construed as limiting the technical solutions of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the protection scope of the present application according to the disclosure of the present application without departing from the structural elements of the present invention.

Claims (9)

1. The novel crochet machine capable of producing the three-dimensional crochet jacquard fabric comprises a crochet machine body; the crochet machine body comprises a needle bed (1) and a warp guide bar (2) which are horizontally configured, and a first weft guide bar (3) and a second weft guide bar (4) are configured above the needle bed (1) in tandem; in a working state, a crochet hook (9) is arranged in a needle groove of a needle bed (1), a looper (10) is arranged in a needle groove of a warp guide bar (2), a needle tube (11) is arranged in a needle groove of a first weft guide bar (3) and a second weft guide bar (4), warps are arranged on the needle head of the looper (10), and a first weft (7) and a second weft (8) are respectively arranged on a tube body of the needle tube (11);

the method is characterized in that: a stereoscopic crochet jacquard device (5) is arranged between the first weft guide bar (3) and the second weft guide bar (4); the three-dimensional crocheting jacquard device (5) comprises a strip-shaped mounting base (501) which is fixedly arranged, row tooth holes are formed in the strip-shaped mounting base (501) in groups, jacquard tooth sheets (502) which can slide up and down through the matching of sliding pairs are arranged in the row tooth holes, and each jacquard tooth sheet (502) is connected with a reciprocating driving element (503) and can be driven by the reciprocating driving element (503) to extend downwards or retract upwards;

when in work: a crochet needle (9) on the needle bed (1) reciprocates in the front and back directions, a first weft guide bar (3) and a second weft guide bar (4) reciprocate in the left and right directions, warps are knotted into a loop under the action of the crochet needle (9), and a first weft (7) and a second weft (8) are fixed; when the jacquard teeth (502) are in an extending state, the second weft (8) at the corresponding position is blocked by the jacquard teeth (502) and arched to form an arched structure; when the jacquard teeth (502) are in the retracted state, the jacquard teeth (502) have no blocking effect on the second weft (8) at the corresponding position so that the second weft is not arched, or the second weft (8) at the corresponding position still has the blocking effect, but the arched height of the second weft (8) is lower than that of the jacquard teeth (502) in the extended state.

2. The new crochet machine capable of producing stereoscopic crochet jacquard fabric according to claim 1, characterized in that: the lower part of the rear side of the jacquard tooth sheet (502) is provided with an inclined guide surface (5021) extending to the lower end.

3. The new crochet machine capable of producing stereoscopic crochet jacquard fabric according to claim 2, characterized in that: the inclined guide surface (5021) is a plane, and the inclined angle theta formed by the inclined guide surface and the horizontal line is 50-80 degrees.

4. The new crochet machine capable of producing stereoscopic crochet jacquard fabric according to claim 3, characterized in that: the inclined guide surface (5021) is connected with the lower end surface of the jacquard tooth sheet (502) through a chamfer or a fillet.

5. The new crochet machine capable of producing stereoscopic crochet jacquard fabric according to claim 3, characterized in that: when the jacquard teeth (502) are in a stretching state, the upper end of the inclined guide surface (5021) is higher than the needle groove on the needle bed (1) in the vertical direction.

6. The new crochet machine capable of producing stereoscopic crochet jacquard fabric according to any of claims 1 to 5, characterized in that: two ends of the strip-shaped mounting foundation (501) are fixedly connected with the crochet machine body through connecting pieces respectively.

7. The novel crochet machine capable of producing stereoscopic crochet jacquard fabric according to claim 6, characterized in that: the reciprocating drive element (503) is a cylinder.

8. The new crochet machine capable of producing stereoscopic crochet jacquard fabric according to claim 7, characterized in that: the upside of strip installation basis (501) is equipped with cylinder mounting panel (504), the cylinder is fixed in on cylinder mounting panel (504).

9. The new crochet machine capable of producing stereoscopic crochet jacquard fabric according to claim 8, characterized in that: the upper end of the jacquard tooth sheet (502) is provided with a connecting part (5022) for connecting the air cylinder to form a 7-shaped structure; the upper ends of two adjacent jacquard teeth (502) face opposite directions.

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