Computerized flat knitting machine

Abstract

The invention discloses a computerized flat knitting machine which comprises a rack, a front needle bed and a rear needle bed, the front needle bed and the rear needle bed are symmetrically arranged on the rack, a front triangular seat and a rear triangular seat are arranged on the front needle bed and the rear needle bed respectively, the front triangular seat moves on the front needle bed through a first front guide rail and a second front guide rail, and the first front guide rail is located on the lower side of the front triangular seat; the front triangular seat is connected with the front second guide rail through a front guide rail bracket; the rear triangular base moves on the rear needle bed through a rear first guide rail and a rear second guide rail, the rear first guide rail is located on the lower side of the rear triangular base, the rear second guide rail is located above the rear triangular base, and the rear triangular base is connected with the rear second guide rail through a rear guide rail support; a gap is formed between the front guide rail bracket and the rear guide rail bracket and is positioned above the front needle bed tooth opening and the rear needle bed tooth opening; a connecting part of the front triangular seat and the rear triangular seat is abandoned, and the front triangular seat and the rear triangular seat of the knitting machine head are separated to be mutually independent in structure, so that warps can be guided in from top to bottom in the front vertical direction.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to a computerized flat knitting machine suitable for a warp and weft inserting biaxial knitting method. Background Art

[0002] When computerized flat knitting machines are used for biaxial knitting with warp and weft interlacing, the warp threads must be positioned vertically in the center of the fabric and interwoven with the weft and knitting yarns on both sides. The introduction of the warp threads is particularly important. However, the front and rear triangles are fixed together by a connecting component (a bridge), which, along with the connecting component, requires reciprocating motion during knitting. Because the connecting component spans above the tooth opening, the warp threads cannot be introduced vertically directly above the tooth opening. In other words, the warp threads cannot be inserted vertically into the yarn guide holes. To address this problem, conventional techniques introduce the warp threads horizontally through the side gates at both ends of the knitting machine, then turn at a near 90° angle to enter the vertical yarn guides. This increases frictional resistance during the warp pulling process, making the yarn guide mechanism heavy and the slide rails deformed. Furthermore, the warp, weft, and knitting yarns are introduced in the same horizontal position, with limited shared space. This can easily lead to tangled yarns, affecting mass production knitting efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a computerized flat knitting machine which can vertically introduce the warp into the tooth mouth from the front, thereby reducing the friction during the introduction of the warp and the staggered entanglement of multiple yarns during the introduction.

[0004] In order to achieve the above technical purpose, the technical solution of the present invention is:

[0005] A computerized flat knitting machine includes a frame, a front needle bed, and a rear needle bed symmetrically arranged thereon. The front needle bed is provided with a front cam, and the rear needle bed is provided with a rear cam. The front and rear cams are independent of each other. The front cam moves on the front needle bed via a first front guide rail and a second front guide rail. The first front guide rail is located below the front cam, and the second front guide rail is located above the front cam. The front cam and the second front guide rail are connected by a front guide rail bracket. The rear cam moves on the rear needle bed via a first rear guide rail and a second rear guide rail. The first rear guide rail is located below the rear cam, and the second rear guide rail is located above the rear cam. The rear cam and the second rear guide rail are connected by a rear guide rail bracket. A gap is defined between the front and rear guide rail brackets, and the gap is located above the tooth openings of the front and rear needle beds. The gap between the front and rear guide rail brackets is used to allow warp threads to pass through and enter the tooth openings of the front and rear needle beds.

[0006] Furthermore, the front second guide rail and the rear second guide rail are installed on the rack through columns.

[0007] Furthermore, a reinforcing rod (bar or beam) is connected to the column, a yarn guide slide rail is provided below the reinforcing rod (bar or beam), and the yarn guide slide rail is connected to the reinforcing rod (bar or beam) through a connecting piece.

[0008] Furthermore, a table is provided above the front triangular seat and the rear triangular seat, and the front second guide rail and the rear second guide rail are provided at the bottom of the table.

[0009] Furthermore, the table top is provided with a plurality of rows of yarn threading holes, and the yarn threading holes are located above the tooth openings of the front needle bed and the rear needle bed.

[0010] Furthermore, a yarn guide slide rail is provided below the table top, and the yarn guide slide rail is connected to the table top via a connecting piece.

[0011] In order to achieve synchronous movement of the front and rear triangles, a power shaft is provided on the frame, and the power device drives the power shaft to rotate; a front driving wheel and a rear driving wheel are provided on the power shaft, the front driving wheel is connected to the front driven wheel through a front transmission belt, and the front triangle is connected to the front transmission belt; the rear driving wheel is connected to the rear driven wheel through a rear transmission belt, and the rear triangle is connected to the rear transmission belt; the front transmission belt drives the front triangle to move, and the rear transmission belt drives the rear triangle to move.

[0012] As another way to allow the front side of the warp to be vertically introduced into the tooth gap, a computer knitting machine includes a frame, a front needle bed and a rear needle bed symmetrically arranged on the frame, a front triangle seat is arranged on the front needle bed, and a rear triangle seat is arranged on the rear needle bed, the front triangle seat and the rear triangle seat are independent of each other, the front triangle seat moves on the front needle bed through a front first guide rail and a front second guide rail, the front first guide rail is located on the lower side of the front triangle seat, and the front second guide rail is located on the upper side of the front triangle seat; the rear triangle seat moves on the rear needle bed through a rear first guide rail and a rear second guide rail, the rear first guide rail is located on the lower side of the rear triangle seat, and the rear second guide rail is located on the upper side of the rear triangle seat.

[0013] The present invention eliminates the connecting components (such as a sky bridge) of the front and rear triangles and divides the front and rear triangles of the braiding machine head so that they are structurally independent of each other. In this way, the warp threads can be introduced from top to bottom and in a vertical direction from the front, avoiding interference and obstruction when the connecting components of the front and rear triangles move left and right; the warp threads are introduced from top to bottom and in a vertical direction from the front, reducing friction during introduction and the disordered entanglement of multiple yarns during introduction; the yarn guide slide rail is connected to the table or reinforcing rod (bar or beam) through a connecting piece, and the yarn guide slide rail is not easily deformed after being subjected to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 The front view of the yarn guide.

[0016] Figure 2 This is the left view of the computer knitting machine.

[0017] Figure 3 The left side view of the computerized flat knitting machine is shown with the controller marked. DETAILED DESCRIPTION

[0018] Example 1

[0019] like Figure 1 、 2 As shown, the computerized knitting machine includes a frame and a front needle bed 8 and a rear needle bed 8' symmetrically arranged on the frame. A front triangle seat 11 is arranged on the front needle bed 8, and a rear triangle seat 11' is arranged on the rear needle bed 8'. The front triangle seat 11 and the rear triangle seat 11' are independent of each other, and a table 2 is arranged above the front triangle seat 11 and the rear triangle seat 11'. Specifically, the front triangle seat 11 moves on the front needle bed 8 through the front first guide rail 81 and the front second guide rail 7. The front first guide rail 81 is located on the lower side of the front triangle seat 11, and the front second guide rail 7 is connected to the bottom of the table 2 above the front triangle seat 11. The front triangle seat 11 and the front second guide rail 7 are connected through the front guide rail bracket 6; the rear triangle seat 11' moves on the rear needle bed 8' through the rear first guide rail 81' and the rear second guide rail 7'. The rear first guide rail 81' is located on the lower side of the rear triangle seat 11', and the rear second guide rail 7' is connected to the bottom of the table 2' above the rear triangle seat 11'. The rear triangle seat 11' and the rear second guide rail 7' are connected through the rear guide rail bracket 6'. There is a gap between the front guide rail bracket 6 and the rear guide rail bracket 6', and the gap is located above the tooth openings of the front needle bed 8 and the rear needle bed 8'. The gap is used for the warp thread 1 to pass through and enter the tooth openings of the front needle bed 8 and the rear needle bed 8'.

[0020] Tabletop 2 rests on a reinforcing rod (bar or beam) connected between front column 13 and rear column 13'. Front second guide rail 7 and rear second guide rail 7' are connected to the bottom of tabletop 2. To enable reciprocating motion of the triangular seat along the second guide rail, a sliding mechanism is required between the triangular seat and the second guide rail. This sliding mechanism can employ a sliding or rolling mechanism commonly used in the prior art. For example, a groove (or roller mechanism) is provided at the top of the front guide rail bracket 6, with the front second guide rail 7 positioned within the groove (or roller mechanism). When the front triangular seat 11 moves, the groove (or roller mechanism) moves along the front second guide rail 7. Similarly, the sliding mechanism (or rolling mechanism) at the top of the rear guide rail bracket 6' can be the same as that on the front guide rail bracket 6. Of course, a slider or roller is provided at the top of the front guide rail bracket 6, and a slide groove is provided at the front second guide rail 7. The slider (or roller) is located in the slide groove. When the front triangle seat 11 moves, the slider (or roller) moves along the slide groove on the front second guide rail 7. Similarly, the sliding mechanism (or rolling mechanism) at the top of the rear guide rail bracket 6' can also be the same as that on the front guide rail bracket 6.

[0021] The table top 2 is provided with a plurality of rows of threading holes 3, which are located above the tooth openings of the front needle bed 8 and the rear needle bed 8' so that the warp threads 1 can be introduced vertically from the front to the bottom into the tooth openings of the front needle bed 8 and the rear needle bed 8'. Of course, the threading holes 3 can also be formed by gaps in the table top. For example, the table top includes a front panel and a back panel, and a gap is reserved between the front panel and the back panel for the warp threads to pass through.

[0022] A yarn guide rail 12 is provided below the table top 2, and the yarn guide rail 12 is connected to the table top 2 via a connector 14. Of course, the yarn guide rail 12 can also be connected to a reinforcing rod (bar or beam) via the connector 14. The connector 14 is located in the gap between the front guide rail bracket 6 and the rear guide rail bracket 6 ', that is, the front guide rail bracket 6 and the rear guide rail bracket 6 ' are respectively located on the front and rear sides of the connector 14. Of course, in order to improve the rigidity of the yarn guide rail 12, multiple connectors 14 can be provided between the yarn guide rail 12 and the table top 2.

[0023] A warp yarn guide is provided on the yarn guide rail 12 and is located above the tooth openings of the front needle bed 8 and the rear needle bed 8'. The warp yarn guide includes a number of yarn feed holes 4 arranged in sequence at equal intervals. A yarn guide needle 5 is correspondingly provided below each yarn feed hole 4. The lower end of the yarn guide needle 5 has a yarn outlet hole, which is located between the tooth openings of the front needle bed 8 and the rear needle bed 8'. The warp yarn 1 is distributed above and below the yarn feed holes 4 and the yarn outlet holes. When in use, multiple warp yarns are respectively inserted into different yarn feed holes 4, and then inserted into the yarn outlet hole at the end of the yarn guide needle 5 corresponding to below the yarn feed hole 4, and introduced into the tooth openings between the front needle bed 8 and the rear needle bed 8'; that is, after a warp yarn 1 is inserted into a yarn feed hole 4, it is then inserted into the yarn outlet hole corresponding to below the yarn feed hole, and introduced into the tooth openings between the front needle bed 8 and the rear needle bed 8'.

[0024] In order to realize the synchronous movement of the front and rear cams, a power shaft 10 is provided on the frame on the left side of the machine tool (or on the right side), and the power shaft 10 is connected to a power device that drives the power shaft 10 to rotate, and the power device is a servo motor; a front driving wheel 101 and a rear driving wheel 101' are provided on the power shaft 10, and the front driving wheel 101 is located on the outside of the front needle bed 8. A front driven wheel is also provided on the outside of the front needle bed 8, and the front driven wheel is located on the right side of the front needle bed 8. The front driven wheel is connected to the front driving wheel 101 through a front transmission belt, and the front cam 11 is connected to the front transmission belt, and the front transmission belt drives the front cam 11 to move; the rear driving wheel 101' is located on the outside of the rear needle bed 8', and a rear driven wheel is also provided on the outside of the rear needle bed 8', and the rear driven wheel is located on the right side of the front needle bed 8'. The rear driven wheel is connected to the rear driving wheel 101' through a rear transmission belt, and the rear triangle seat 11' is connected to the rear transmission belt, and the rear transmission belt drives the rear triangle seat 11' to move; the motor drives the power shaft 10 to rotate, and the front transmission belt drives the front triangle seat 11 to move along the front second guide rail 7 and the front first guide rail 81 on the front needle bed 8, and the rear transmission belt drives the rear triangle seat 11' to move along the rear second guide rail 7' and the rear first guide rail 81' on the rear needle bed 8', thereby realizing the synchronous movement of the front and rear triangle seats.

[0025] This embodiment eliminates the connecting bridge (connecting component) between the front and rear triangles, separating the front and rear triangles of the braiding machine head into separate structures. This allows the warp yarns 1 to be introduced vertically from top to bottom, reducing friction and the risk of multiple yarns becoming tangled during introduction. The yarn guide rail 12 is connected to the table 2 or a reinforcing rod (bar or beam) via a connector 14, eliminating potential deformation of the yarn guide rail 12.

[0026] Of course, as other embodiments, the front second guide rail 7 can also be set on the front column 13, and the front triangle seat 11 and the front second guide rail 7 are connected through the front guide rail bracket 6. The rear second guide rail 7' can also be set on the rear column 13', and the rear triangle seat 11' and the rear second guide rail 7' are connected through the rear guide rail bracket 6'.

[0027] Example 2

[0028] The difference from Example 1 is that the front second guide rail 9 is arranged on the front needle bed 8, located on the upper side of the front triangle seat 11, and the front triangle seat 11 moves on the front needle bed 8 along the front second guide rail 9 and the front first guide rail 81, and the rear second guide rail 9' is arranged on the rear needle bed 8', located on the upper side of the rear triangle seat 11', and the rear triangle seat 11' moves on the rear needle bed 8' along the rear second guide rail 9' and the rear first guide rail 81'.

[0029] Of course, the second guide rails 7, 7' in embodiment 1 and the second guide rails 9, 9' in embodiment 2 can also be installed and used at the same time.

[0030] like Figure 3As shown, in the above embodiment, since the front and rear triangle seat connecting components are discarded, the communication control lines of the front and rear triangle seats also need to be changed: output from the main controller to the head unit respectively, that is, the front and rear parts are independent controllers of each other, the controller of the front half of the needle bed (including the triangle system controller 16, 16', the yarn guide switching mechanism controller 15, 15', the same below) and the controller of the back half of the needle bed can be respectively placed on the front guide rail bracket 6 and the rear guide rail bracket 6', and connected to the main controller through the aviation line interface 17, 17'.

[0031] The above embodiments do not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A computerized flat knitting machine comprising a frame, a front needle bed and a rear needle bed symmetrically arranged on the frame, wherein a front cam is provided on the front needle bed and a rear cam is provided on the rear needle bed, characterized in that: The front triangle seat and the rear triangle seat are independent of each other, and the front triangle seat moves on the front needle bed through the front first guide rail and the front second guide rail, the front first guide rail is located at the lower side of the front triangle seat, and the front second guide rail is located above the front triangle seat, and the front triangle seat and the front second guide rail are connected by the front guide rail bracket; the rear triangle seat moves on the rear needle bed through the rear first guide rail and the rear second guide rail, the rear first guide rail is located at the lower side of the rear triangle seat, and the rear second guide rail is located above the rear triangle seat, and the rear triangle seat and the rear second guide rail are connected by the rear guide rail bracket; there is a gap between the front guide rail bracket and the rear guide rail bracket, and the gap is located above the teeth of the front needle bed and the rear needle bed.

2. The computerized flat knitting machine according to claim 1, characterized in that: The front second guide rail and the rear second guide rail are installed on the frame through columns.

3. The computerized flat knitting machine according to claim 2, characterized in that: A reinforcing rod is connected to the column, a yarn guide slide rail is arranged below the reinforcing rod, and the yarn guide slide rail is connected to the reinforcing rod through a connecting piece.

4. The computerized flat knitting machine according to claim 1, characterized in that: A table top is arranged above the front triangular seat and the rear triangular seat, and the front second guide rail and the rear second guide rail are arranged at the bottom of the table top.

5. The computerized flat knitting machine according to claim 4, characterized in that: A plurality of rows of yarn threading holes are arranged on the table top, and the yarn threading holes are located above the tooth openings of the front needle bed and the rear needle bed.

6. The computerized flat knitting machine according to claim 4 or 5, characterized in that: A yarn guide slide rail is provided below the table top, and the yarn guide slide rail is connected to the table top through a connecting piece.

7. The computerized flat knitting machine according to claim 1, characterized in that: The frame is provided with a power shaft, and the power device drives the power shaft to rotate; the power shaft is provided with a front driving wheel and a rear driving wheel, the front driving wheel is connected to the front driven wheel through a front transmission belt, and the front triangle seat is connected to the front transmission belt; the rear driving wheel is connected to the rear driven wheel through a rear transmission belt, and the rear triangle seat is connected to the rear transmission belt; the front transmission belt drives the front triangle seat to move, and the rear transmission belt drives the rear triangle seat to move.

8. A computerized flat knitting machine comprising a frame, a front needle bed and a rear needle bed symmetrically arranged on the frame, a front cam being provided on the front needle bed, and a rear cam being provided on the rear needle bed, characterized in that: The front triangle seat and the rear triangle seat are independent of each other. The front triangle seat moves on the front needle bed through the front first guide rail and the front second guide rail. The front first guide rail is located on the lower side of the front triangle seat, and the front second guide rail is located on the upper side of the front triangle seat; the rear triangle seat moves on the rear needle bed through the rear first guide rail and the rear second guide rail. The rear first guide rail is located on the lower side of the rear triangle seat, and the rear second guide rail is located on the upper side of the rear triangle seat.

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