CN204780102U - Take full motor bottom plate of dual system of bi -motor playback - Google Patents

Abstract

The utility model relates to a take full motor bottom plate of dual system of bi -motor playback. Still do not have one kind at present and can reduce the energy consumption, improve the dual system flat -bed machine motor bottom plate that the motor playbacked that has of weaving the accuracy. The utility model discloses a triangle of pushing pin on the triangle mother board, two numbers triangles of pushing pin, the four numbers triangles of pushing pin of trigonometric sum of pushing pin for three numbers are installed, draw runner, motion control structure about the triangle of pushing pin to the triangle mother board, its characteristics are: the triangle of pushing pin motion control structure from top to bottom includes push pin triangle motor, cam, a guide pillar and no. Two guide pillars, the triangle motor of pushing pin is fixed at the back of triangle mother board, and the cam is connected on the triangle motor of pushing pin, and a guide pillar and no. Two guide pillars are all fixed on the draw runner, and guide pillar and no. Two guide pillars are located the both sides of cam respectively, and a guide pillar and no. Two guide pillars all cooperate with the cam. The utility model has the advantages of simple structure, reasonable in design is favorable to reducing the energy consumption, improves and weaves the accuracy, extension complete machine life.

Description

With the full electric baseboard of dual system of bi-motor playback

Technical field

The utility model relates to a kind of full electric baseboard of dual system with bi-motor playback, belongs to a kind of flat knitting machine soleplate.

Background technology

In Computerized flat knitting machine, magnet steel is generally adopted to be adsorbed in the knee-action that the mode that large thick stick plane drags completes triangle of pushing pin at present, which relies on the absorption affinity of magnet steel and great Gang (iron piece) to rub completely and drives the guide pillar execution of triangle of pushing pin, frictional force is very large, easily cause the wearing and tearing of large thick stick, cause head overall operation resistance very large, complete machine easily produces and rocks, the accuracy of impact braiding; Also very high to the power requirement of mair motor, waste electricity, not energy-conserving and environment-protective; Because resistance is very large, the wearing and tearing of synchronizing wheel and Timing Belt are also very large, and the profile of tooth of synchronizing wheel is is easily worn and torn, and time serious, profile of tooth can come off, and causing changing synchronizing wheel could normally use, and greatly reduces the service life of complete machine.Also do not have a kind of structure simple, reasonable in design at present, be conducive to reducing energy consumption, improve braiding accuracy, extend the dual system straight-bar machines electric baseboard with motor playback in complete machine service life.

Utility model content

The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of structure simple, reasonable in design, is conducive to reducing energy consumption, improves braiding accuracy, extends the full electric baseboard of dual system of the band bi-motor playback in complete machine service life.

The technical scheme in the invention for solving the above technical problem is: the full electric baseboard of dual system of this band bi-motor playback comprises triangle motherboard, and triangle is protected in the left side be arranged on triangle motherboard, pin guide block is turned on a left side, triangle is protected in centre, pin guide block is turned on the right side, triangle is protected on right side, left sharp triangle, right sharp triangle, left back-stitching cam, a degree order triangle, left mountain guide block, No. two degree order triangles, No. three degree order triangles, right mountain guide block, No. four degree order triangles, right back-stitching cam, left side retains protects triangle, left dish triangle, middle reservation, protects triangle, right dish triangle, right side retains protects triangle, left side is long protects triangle, middle length protects triangle, right side is long protects triangle, a triangle of pushing pin, No. two triangles of pushing pin, No. three triangles of pushing pin, No. four triangles of pushing pin, triangle is protected in lower-left, triangle is protected under centre, triangle is protected in bottom right, a left side is lifted the pin trigonometric sum right side and is lifted pin triangle, draw runner, triangle knee-action control structure of pushing pin, a triangle guide pillar of pushing pin, a guide pin bushing, No. two triangle guide pillars of pushing pin, No. two guide pin bushings, No. three triangle guide pillars of pushing pin, No. three guide pin bushings, No. four triangle guide pillars of pushing pin, and No. four guide pin bushings, triangle is protected in described left side, pin guide block is turned on a left side, triangle is protected in centre, the right side is turned over pin guide block and right side and is protected triangle and be arranged in order from left to right, triangle is protected in described left side, left back-stitching cam, left side retains protects triangle, left side is long to be protected trigonometric sum lower-left and protects triangle and be arranged in order from top to bottom, described left sharp triangle, pin guide block is turned on a left side, left mountain guide block and left dish triangle are arranged in order from top to bottom, a described degree order trigonometric sum No. two degree order triangles lay respectively at left side and the right side of left mountain guide block, triangle is protected in described centre, middle reservation, protects triangle, protect triangle under middle length protects trigonometric sum centre to be arranged in order from top to bottom, described right sharp triangle, pin guide block is turned on the right side, right mountain guide block and right dish triangle are arranged in order from top to bottom, described No. three degree order trigonometric sums No. four degree order triangles lay respectively at left side and the right side of right mountain guide block, triangle is protected on described right side, right back-stitching cam, right side retains protects triangle, right side is long to be protected trigonometric sum bottom right and protects triangle and be arranged in order from top to bottom, a described triangle of pushing pin is positioned at the top that triangle is protected in lower-left, described No. two No. three, trigonometric sums of pushing pin are pushed pin and are protected the top of triangle under triangle is all positioned at centre, described No. four triangles of pushing pin are positioned at the top that triangle is protected in bottom right, a described triangle of pushing pin, No. two triangles of pushing pin, No. three trigonometric sum No. four triangles of pushing pin of pushing pin are arranged in order from left to right, a described left side is lifted pin triangle and is positioned at the below protecting triangle under triangle and/or centre are protected in lower-left, the described right side is lifted and to be protected the below that triangle is protected in triangle and/or bottom right under pin triangle is positioned at centre, one end of a described triangle guide pillar of pushing pin is fixed on the back side of a triangle of pushing pin, one end of a described guide pin bushing is fixed on No. one and pushes pin on triangle guide pillar, one end of described No. two triangle guide pillars of pushing pin is fixed on the back side of No. two triangles of pushing pin, one end of described No. two guide pin bushings is fixed on No. two and pushes pin on triangle guide pillar, one end of described No. three triangle guide pillars of pushing pin is fixed on the back side of No. three triangles of pushing pin, one end of described No. three guide pin bushings is fixed on No. three and pushes pin on triangle guide pillar, one end of described No. four triangle guide pillars of pushing pin is fixed on the back side of No. four triangles of pushing pin, one end of described No. four guide pin bushings is fixed on No. four and pushes pin on triangle guide pillar, described draw runner is provided with and is respectively used to a triangle of pushing pin, No. two triangles of pushing pin, No. three No. four, trigonometric sums of pushing pin are pushed pin the chute that triangle knee-action carries out leading, No. two chutes, No. three chutes and No. four chutes, a described guide pin bushing, No. two guide pin bushings, No. three guide pin bushings and the cross-under of No. four guide pin bushing difference are at a chute, No. two chutes, in No. three chutes and No. four chutes, its design feature is: described in triangle knee-action control structure of pushing pin comprise triangle motor of pushing pin, cam, a guide pillar and No. two guide pillars, described triangle motor of pushing pin is fixed on the back side of triangle motherboard, described cam is connected to pushes pin on triangle motor, a described guide pillar and No. two guide pillars are all fixed on draw runner, this guide pillar and No. two guide pillars lay respectively at the both sides of cam, a described guide pillar and No. two guide pillars are all and cam engagement.

As preferably, dual system electric baseboard described in the utility model also comprises left needle selecting foot briquetting and right needle selecting foot briquetting, described left needle selecting foot briquetting and right needle selecting foot briquetting are installed on triangle motherboard, described left needle selecting foot briquetting is positioned at the long below protecting triangle, left side, and described right needle selecting foot briquetting is positioned at the long below protecting triangle, right side.

As preferably, the right side of the left side of left mountain described in the utility model guide block and No. respectively with one, right side degree order triangle and the left contact of No. two degree order triangles, the right side of the left side of described right mountain guide block and No. respectively with three, right side degree order triangle and the left contact of No. four degree order triangles.

As preferably, a chute described in the utility model, No. two chutes, No. three chutes and No. four chutes include upper crosspiece, in tiltedly section and lower crosspiece, in described, the oblique upper end of section is connected with one end of upper crosspiece, in this, the lower end of oblique section is connected with one end of lower crosspiece, in described oblique section to triangle motherboard distance therefrom tiltedly section upper end in the lower end of oblique section increase gradually.

As preferably, one end of a triangle guide pillar of pushing pin described in the utility model is vertically fixed on the back side of a triangle of pushing pin, one end of described No. two triangle guide pillars of pushing pin is vertically fixed on the back side of No. two triangles of pushing pin, one end of described No. three triangle guide pillars of pushing pin is vertically fixed on the back side of No. three triangles of pushing pin, and one end of described No. four triangle guide pillars of pushing pin is vertically fixed on the back side of No. four triangles of pushing pin.

As preferably, the axis of a triangle guide pillar of pushing pin described in the utility model and the axes normal of a guide pin bushing, the described axis of No. two triangle guide pillars of pushing pin and the axes normal of No. two guide pin bushings, the described axis of No. three triangle guide pillars of pushing pin and the axes normal of No. three guide pin bushings, the described axis of No. four triangle guide pillars of pushing pin and the axes normal of No. four guide pin bushings.

As preferably, a guide pillar described in the utility model and No. two guide pillars are all perpendicular to draw runner.

As preferably, a triangle of pushing pin described in the utility model, No. two triangles of pushing pin, No. three No. four, trigonometric sums of pushing pin triangle of pushing pin all is movably arranged on triangle motherboard by triangle guide holder of pushing pin.

As preferably, upper crosspiece described in the utility model is all parallel with triangle motherboard with lower crosspiece.

As preferably, upper crosspiece in a chute described in the utility model is positioned at the left side of a chute, upper crosspiece in described No. two chutes is positioned at the left side of No. two chutes, upper crosspiece in described No. three chutes is positioned at the right side of No. three chutes, and the upper crosspiece in described No. four chutes is positioned at the right side of No. four chutes.

The utility model compared with prior art, has the following advantages and effect: 1, eliminate magnet steel, devises the structure of motor and cam cleverly, has become rectilinear motion by motor translating rotation, completes the function action needed for braiding of triangle of pushing pin; 2, to make in transmission, without any friction, to greatly reduce the resistance of head, ensure that the light operation of head; 3, the consumption of mair motor is greatly reduced; 4, synchronizing wheel, the pulling force of Timing Belt and wearing and tearing are greatly reduced; 5, greatly reduce the wearing and tearing of large thick stick, greatly reduce the wearing and tearing of the operation bearing on head; 6, greatly reduce the energy consumption of complete machine, have very large advantage on energy-conservation, also current country advocates; 7, be run without rubbing between head and large thick stick, the operation of complete machine, without rocking, improves the accuracy of braiding function; 8, improve the service life of complete machine; 9, structure is simple, reasonable in design, and design is unique, triangle arrangement science, dependable performance.

Accompanying drawing explanation

Fig. 1 is the main TV structure schematic diagram of the full electric baseboard of dual system with bi-motor playback in the utility model embodiment.

Fig. 2 is the backsight structural representation of the full electric baseboard of dual system with bi-motor playback in the utility model embodiment.

Fig. 3 relates generally to push pin the plan structure schematic diagram of triangle knee-action control structure in Fig. 2.

Detailed description of the invention

Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.

Embodiment.

See Fig. 1 to Fig. 3, the full electric baseboard of dual system with bi-motor playback in the present embodiment comprises triangle motherboard 1, triangle 2 is protected in left side, pin guide block 3 is turned on a left side, triangle 4 is protected in centre, pin guide block 5 is turned on the right side, triangle 6 is protected on right side, left sharp triangle 7, right sharp triangle 8, left back-stitching cam 9, a degree order triangle 10, left mountain guide block 11, No. two degree order triangles 12, No. three degree order triangles 13, right mountain guide block 14, No. four degree order triangles 15, right back-stitching cam 16, left side retains protects triangle 17, left dish triangle 18, middle reservation, protects triangle 19, right dish triangle 20, right side retains protects triangle 21, left side is long protects triangle 22, middle length protects triangle 23, right side is long protects triangle 24, left needle selecting foot briquetting 25, right needle selecting foot briquetting 26, a triangle 27 of pushing pin, No. two triangles 28 of pushing pin, No. three triangles 29 of pushing pin, No. four triangles 30 of pushing pin, triangle 31 is protected in lower-left, triangle 32 is protected under centre, triangle 33 is protected in bottom right, pin triangle 34 is lifted on a left side, pin triangle 35 is lifted on the right side, draw runner 39, triangle knee-action control structure of pushing pin, a triangle guide pillar of pushing pin, a guide pin bushing, No. two triangle guide pillars of pushing pin, No. two guide pin bushings, No. three triangle guide pillars of pushing pin, No. three guide pin bushings, No. four triangle guide pillars of pushing pin, and No. four guide pin bushings.

Triangle 2 is protected in left side in the present embodiment, pin guide block 3 is turned on a left side, triangle 4 is protected in centre, pin guide block 5 is turned on the right side, triangle 6 is protected on right side, left sharp triangle 7, right sharp triangle 8, left back-stitching cam 9, a degree order triangle 10, left mountain guide block 11, No. two degree order triangles 12, No. three degree order triangles 13, right mountain guide block 14, No. four degree order triangles 15, right back-stitching cam 16, left side retains protects triangle 17, left dish triangle 18, middle reservation, protects triangle 19, right dish triangle 20, right side retains protects triangle 21, left side is long protects triangle 22, middle length protects triangle 23, right side is long protects triangle 24, a triangle 27 of pushing pin, No. two triangles 28 of pushing pin, No. three triangles 29 of pushing pin, No. four triangles 30 of pushing pin, triangle 31 is protected in lower-left, triangle 32 is protected under centre, triangle 33 is protected in bottom right, a left side is lifted pin triangle 34 and the right side and is lifted pin triangle 35 and be installed on triangle motherboard 1.

Triangle 2 is protected in left side in the present embodiment, pin guide block 3 is turned on a left side, triangle 4 is protected in centre, pin guide block 5 is turned on the right side and right side is protected triangle 6 and is arranged in order from left to right, triangle 2 is protected in left side, left back-stitching cam 9, left side retain and protect long triangle 22 and the lower-left protected in triangle 17, left side and protect triangle 31 and be arranged in order from top to bottom, left sharp triangle 7, a left side turn over pin guide block 3, left mountain guide block 11 and left dish triangle 18 and are arranged in order from top to bottom, and left dish triangle 18 is positioned at the long top protecting triangle 22, left side.

In the present embodiment No. one degree order triangle 10 and No. two degree order triangles 12 lay respectively at left side and the right side of left mountain guide block 11, triangle 4 is protected in centre, triangle 19 is protected in middle reservation, middle length is protected triangle 32 under protecting triangle 23 and centre and is arranged in order from top to bottom, right sharp triangle 8, the right side turn over pin guide block 5, right mountain guide block 14 and right dish triangle 20 and are arranged in order from top to bottom, and right dish triangle 20 is positioned at the middle long top protecting triangle 23.

In the present embodiment No. three degree order triangles 13 and No. four degree order triangles 15 lay respectively at left side and the right side of right mountain guide block 14, triangle 6 is protected on right side, right back-stitching cam 16, right side retains protects triangle 21, right side is long to be protected triangle 24 and bottom right and protects triangle 33 and be arranged in order from top to bottom, a triangle 27 of pushing pin is positioned at the top that triangle 31 is protected in lower-left, the top of triangle 32 is protected under No. two push pin triangle 28 and No. three triangles 29 of pushing pin all are positioned at centre, No. four triangles 30 of pushing pin are positioned at the top that triangle 33 is protected in bottom right, a triangle 27 of pushing pin, No. two triangles 28 of pushing pin, No. three push pin triangle 29 and No. four triangles 30 of pushing pin are arranged in order from left to right, a left side is lifted pin triangle 34 and is positioned at the below protecting triangle 32 under triangle 31 and/or centre are protected in lower-left, the right side is lifted and to be protected the below that triangle 33 is protected in triangle 32 and/or bottom right under pin triangle 35 is positioned at centre.

Left side in the present embodiment retain protect triangle 17, middle reservation protect triangle 19 and right side and retain and protect triangle 21 and be arranged in order from left to right, left side is long protects triangle 22, middlely longly protect triangle 23 and right side is long protects triangle 24 and be arranged in order from left to right, and lower-left is protected triangle 32 and bottom right and protected triangle 33 and be arranged in order from left to right under protecting triangle 31, centre.Left needle selecting foot briquetting 25 and right needle selecting foot briquetting 26 are installed on triangle motherboard 1, and left needle selecting foot briquetting 25 is positioned at the long below protecting triangle 22, left side, and right needle selecting foot briquetting 26 is positioned at the long below protecting triangle 24, right side.

The left side of left mountain guide block 11 and right side be the right side of respectively with number degree order triangle 10 and the left contact of No. two degree order triangles 12 usually, and the left side of right mountain guide block 14 and right side be the right side of respectively with No. three degree order triangles 13 and the left contact of No. four degree order triangles 15 usually.

One end of No. one in the present embodiment triangle guide pillar of pushing pin is fixed on the back side of a triangle 27 of pushing pin, one end of a guide pin bushing is fixed on No. one and pushes pin on triangle guide pillar, one end of No. two triangle guide pillars of pushing pin is fixed on the back side of No. two triangles 28 of pushing pin, one end of No. two guide pin bushings is fixed on No. two and pushes pin on triangle guide pillar, one end of No. three triangle guide pillars of pushing pin is fixed on the back side of No. three triangles 29 of pushing pin, one end of No. three guide pin bushings is fixed on No. three and pushes pin on triangle guide pillar, one end of No. four triangle guide pillars of pushing pin is fixed on the back side of No. four triangles 30 of pushing pin, one end of No. four guide pin bushings is fixed on No. four and pushes pin on triangle guide pillar.

Draw runner 39 in the present embodiment be provided be respectively used to No. 27, two, a triangle of pushing pin push pin No. 28, three, triangle push pin a chute 391, No. two chutes 392, No. three chutes 393 that triangle 29 and No. four triangle 30 knee-actions of pushing pin carry out leading and No. four chutes 394, guide pin bushing, No. two guide pin bushings, No. three guide pin bushings and No. four guide pin bushings respectively cross-under in a chute 391, No. two chutes 392, No. three chutes 393 and No. four chutes 394.When a chute 391, No. two chutes 392, when No. three chutes 393 and No. four chutes 394 move left and right with draw runner 39, a chute 391 can promote a guide pin bushing along chute 391 activity, No. two chutes 392 can promote No. two guide pin bushings along No. two chutes 392 activities, No. three chutes 393 can promote No. three guide pin bushings along No. three chutes 393 activities, No. four chutes 394 can promote No. four guide pin bushings along No. four chutes 394 activities, again by a guide pin bushing, No. two guide pin bushings, No. three guide pin bushings and No. four guide pin bushings drive a triangle 27 of pushing pin respectively, No. two triangles 28 of pushing pin, No. three push pin triangle 29 and No. four triangle 30 knee-actions of pushing pin, a triangle 27 of pushing pin, No. two triangles 28 of pushing pin, the knee-action of No. three push pin triangle 29 and No. four triangles 30 of pushing pin refers to along from the direction of the front of triangle motherboard 1 to the back side of triangle motherboard 1 or the direction from the back side of triangle motherboard 1 to the front of triangle motherboard 1.

Triangle knee-action control structure of pushing pin in the present embodiment comprises triangle motor 40 of pushing pin, cam 41, guide pillar 42 and No. two guide pillars 43, triangle motor 40 of pushing pin is fixed on the back side of triangle motherboard 1, cam 41 is connected to pushes pin on triangle motor 40, a guide pillar 42 and No. two guide pillars 43 are all fixed on draw runner 39, this guide pillar 42 and No. two guide pillars 43 lay respectively at the both sides of cam 41, and a guide pillar 42 and No. two guide pillars 43 all coordinate with cam 41.When triangle motor 40 of pushing pin is with moving cam 41 to rotate, cam 41 can promote a guide pillar 42 or No. two guide pillars 43, thus realizes the function that a guide pillar 42 or No. two guide pillars 43 drive draw runner 39 to move left and right.Triangle motor 40 of pushing pin is with moving cam 41 to rotate, when cam 41 withstands a guide pillar 42, draw runner 39 is moved to the left, guide pin bushing moves along chute, finally realize push pin triangle 27 and No. two to push pin triangle 28 actions downwards, and No. three push pin triangle 29 and No. four are pushed pin the function of triangle 30 upwards action.When cam 41 withstands No. two guide pillars 43, draw runner 39 moves right, and guide pin bushing moves along chute, finally realizes push pin triangle 27 and No. two triangle 28 upwards actions of pushing pin, and the function of No. three push pin triangle 29 and No. four triangle 30 actions downwards of pushing pin.

391, No. two chutes of a chute in the present embodiment, 392, No. three chutes 393 and No. four chutes 394 include upper crosspiece, in tiltedly section and lower crosspiece, in tiltedly the upper end of section be connected with one end of upper crosspiece, in this, the lower end of oblique section is connected with one end of lower crosspiece, in tiltedly section to triangle motherboard 1 distance therefrom tiltedly section upper end in the lower end of oblique section increase gradually.Upper crosspiece is usually all parallel with triangle motherboard 1 with lower crosspiece.Upper crosspiece in a chute 391 is positioned at the left side of a chute 391, upper crosspiece in described No. two chutes 392 is positioned at the left side of No. two chutes 392, upper crosspiece in described No. three chutes 393 is positioned at the right side of No. three chutes 393, and the upper crosspiece in described No. four chutes 394 is positioned at the right side of No. four chutes 394.

Under normal circumstances, one end of a triangle guide pillar of pushing pin is vertically fixed on the back side of a triangle 27 of pushing pin, one end of No. two triangle guide pillars of pushing pin is vertically fixed on the back side of No. two triangles 28 of pushing pin, one end of No. three triangle guide pillars of pushing pin is vertically fixed on the back side of No. three triangles 29 of pushing pin, and one end of No. four triangle guide pillars of pushing pin is vertically fixed on the back side of No. four triangles 30 of pushing pin.The axis of a triangle guide pillar of pushing pin and the axes normal of a guide pin bushing, the axis of No. two triangle guide pillars of pushing pin and the axes normal of No. two guide pin bushings, the axis of No. three triangle guide pillars of pushing pin and the axes normal of No. three guide pin bushings, the axis of No. four triangle guide pillars of pushing pin and the axes normal of No. four guide pin bushings.A guide pillar 42 and No. two guide pillars 43 are all perpendicular to draw runner 39.No. 27, two, triangle of pushing pin push pin triangle 29 and No. four triangles 30 of pushing pin of No. 28, three, triangle of pushing pin all are movably arranged on triangle motherboard 1 by triangle guide holder of pushing pin.

The utility model eliminates magnet steel, employing triangle motor 40 of pushing pin drives, push pin triangle motor 40 output shaft on be designed with cam 41, draw runner 39 is designed with two guide pillars, draw runner 39 is designed with chute everywhere, drive draw runner 39 to complete to horizontally slip, thus drive four pieces of triangles of pushing pin to complete its required function action.

Said in the utility model " top ", " below ", "left", "right", " on ", the orientation term such as D score is common practise to those skilled in the art.

In addition, it should be noted that, the specific embodiment described in this description, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to the explanation of the utility model structure example.The equivalence change that structure, feature and principle described in all foundation the utility model inventional idea are done or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.

Claims (10)

1. the full electric baseboard of dual system with bi-motor playback, comprise triangle motherboard, triangle is protected in the left side be arranged on triangle motherboard, pin guide block is turned on a left side, triangle is protected in centre, pin guide block is turned on the right side, triangle is protected on right side, left sharp triangle, right sharp triangle, left back-stitching cam, a degree order triangle, left mountain guide block, No. two degree order triangles, No. three degree order triangles, right mountain guide block, No. four degree order triangles, right back-stitching cam, left side retains protects triangle, left dish triangle, middle reservation, protects triangle, right dish triangle, right side retains protects triangle, left side is long protects triangle, middle length protects triangle, right side is long protects triangle, a triangle of pushing pin, No. two triangles of pushing pin, No. three triangles of pushing pin, No. four triangles of pushing pin, triangle is protected in lower-left, triangle is protected under centre, triangle is protected in bottom right, a left side is lifted the pin trigonometric sum right side and is lifted pin triangle, draw runner, triangle knee-action control structure of pushing pin, a triangle guide pillar of pushing pin, a guide pin bushing, No. two triangle guide pillars of pushing pin, No. two guide pin bushings, No. three triangle guide pillars of pushing pin, No. three guide pin bushings, No. four triangle guide pillars of pushing pin, and No. four guide pin bushings, triangle is protected in described left side, pin guide block is turned on a left side, triangle is protected in centre, the right side is turned over pin guide block and right side and is protected triangle and be arranged in order from left to right, triangle is protected in described left side, left back-stitching cam, left side retains protects triangle, left side is long to be protected trigonometric sum lower-left and protects triangle and be arranged in order from top to bottom, described left sharp triangle, pin guide block is turned on a left side, left mountain guide block and left dish triangle are arranged in order from top to bottom, a described degree order trigonometric sum No. two degree order triangles lay respectively at left side and the right side of left mountain guide block, triangle is protected in described centre, middle reservation, protects triangle, protect triangle under middle length protects trigonometric sum centre to be arranged in order from top to bottom, described right sharp triangle, pin guide block is turned on the right side, right mountain guide block and right dish triangle are arranged in order from top to bottom, described No. three degree order trigonometric sums No. four degree order triangles lay respectively at left side and the right side of right mountain guide block, triangle is protected on described right side, right back-stitching cam, right side retains protects triangle, right side is long to be protected trigonometric sum bottom right and protects triangle and be arranged in order from top to bottom, a described triangle of pushing pin is positioned at the top that triangle is protected in lower-left, described No. two No. three, trigonometric sums of pushing pin are pushed pin and are protected the top of triangle under triangle is all positioned at centre, described No. four triangles of pushing pin are positioned at the top that triangle is protected in bottom right, a described triangle of pushing pin, No. two triangles of pushing pin, No. three trigonometric sum No. four triangles of pushing pin of pushing pin are arranged in order from left to right, a described left side is lifted pin triangle and is positioned at the below protecting triangle under triangle and/or centre are protected in lower-left, the described right side is lifted and to be protected the below that triangle is protected in triangle and/or bottom right under pin triangle is positioned at centre, one end of a described triangle guide pillar of pushing pin is fixed on the back side of a triangle of pushing pin, one end of a described guide pin bushing is fixed on No. one and pushes pin on triangle guide pillar, one end of described No. two triangle guide pillars of pushing pin is fixed on the back side of No. two triangles of pushing pin, one end of described No. two guide pin bushings is fixed on No. two and pushes pin on triangle guide pillar, one end of described No. three triangle guide pillars of pushing pin is fixed on the back side of No. three triangles of pushing pin, one end of described No. three guide pin bushings is fixed on No. three and pushes pin on triangle guide pillar, one end of described No. four triangle guide pillars of pushing pin is fixed on the back side of No. four triangles of pushing pin, one end of described No. four guide pin bushings is fixed on No. four and pushes pin on triangle guide pillar, described draw runner is provided with and is respectively used to a triangle of pushing pin, No. two triangles of pushing pin, No. three No. four, trigonometric sums of pushing pin are pushed pin the chute that triangle knee-action carries out leading, No. two chutes, No. three chutes and No. four chutes, a described guide pin bushing, No. two guide pin bushings, No. three guide pin bushings and the cross-under of No. four guide pin bushing difference are at a chute, No. two chutes, in No. three chutes and No. four chutes, it is characterized in that: described in triangle knee-action control structure of pushing pin comprise triangle motor of pushing pin, cam, a guide pillar and No. two guide pillars, described triangle motor of pushing pin is fixed on the back side of triangle motherboard, described cam is connected to pushes pin on triangle motor, a described guide pillar and No. two guide pillars are all fixed on draw runner, this guide pillar and No. two guide pillars lay respectively at the both sides of cam, a described guide pillar and No. two guide pillars are all and cam engagement.

2. the full electric baseboard of dual system of band bi-motor playback according to claim 1, it is characterized in that: described dual system electric baseboard also comprises left needle selecting foot briquetting and right needle selecting foot briquetting, described left needle selecting foot briquetting and right needle selecting foot briquetting are installed on triangle motherboard, described left needle selecting foot briquetting is positioned at the long below protecting triangle, left side, and described right needle selecting foot briquetting is positioned at the long below protecting triangle, right side.

3. the full electric baseboard of dual system of band bi-motor playback according to claim 1 and 2, it is characterized in that: the right side of the left side of described left mountain guide block and No. respectively with one, right side degree order triangle and the left contact of No. two degree order triangles, the right side of the left side of described right mountain guide block and No. respectively with three, right side degree order triangle and the left contact of No. four degree order triangles.

4. the full electric baseboard of dual system of band bi-motor playback according to claim 1 and 2, it is characterized in that: a described chute, No. two chutes, No. three chutes and No. four chutes include upper crosspiece, in tiltedly section and lower crosspiece, in described, the oblique upper end of section is connected with one end of upper crosspiece, in this, the lower end of oblique section is connected with one end of lower crosspiece, in described oblique section to triangle motherboard distance therefrom tiltedly section upper end in the lower end of oblique section increase gradually.

5. the full electric baseboard of dual system of band bi-motor playback according to claim 1 and 2, it is characterized in that: one end of a described triangle guide pillar of pushing pin is vertically fixed on the back side of a triangle of pushing pin, one end of described No. two triangle guide pillars of pushing pin is vertically fixed on the back side of No. two triangles of pushing pin, one end of described No. three triangle guide pillars of pushing pin is vertically fixed on the back side of No. three triangles of pushing pin, and one end of described No. four triangle guide pillars of pushing pin is vertically fixed on the back side of No. four triangles of pushing pin.

6. the full electric baseboard of dual system of band bi-motor playback according to claim 1 and 2, it is characterized in that: the described axis of a triangle guide pillar of pushing pin and the axes normal of a guide pin bushing, the described axis of No. two triangle guide pillars of pushing pin and the axes normal of No. two guide pin bushings, the described axis of No. three triangle guide pillars of pushing pin and the axes normal of No. three guide pin bushings, the described axis of No. four triangle guide pillars of pushing pin and the axes normal of No. four guide pin bushings.

7. the full electric baseboard of dual system of band bi-motor playback according to claim 1 and 2, is characterized in that: a described guide pillar and No. two guide pillars are all perpendicular to draw runner.

8. the full electric baseboard of dual system of band bi-motor according to claim 1 and 2 playback, is characterized in that: a described triangle of pushing pin, No. two triangles of pushing pin, No. three No. four, trigonometric sums of pushing pin triangle of pushing pin all is movably arranged on triangle motherboard by triangle guide holder of pushing pin.

9. the full electric baseboard of dual system of band bi-motor playback according to claim 4, is characterized in that: described upper crosspiece is all parallel with triangle motherboard with lower crosspiece.

10. the full electric baseboard of dual system of band bi-motor playback according to claim 4, it is characterized in that: the upper crosspiece in a described chute is positioned at the left side of a chute, upper crosspiece in described No. two chutes is positioned at the left side of No. two chutes, upper crosspiece in described No. three chutes is positioned at the right side of No. three chutes, and the upper crosspiece in described No. four chutes is positioned at the right side of No. four chutes.