Traction device for flat knitting machine with needle and rake combined traction and flat knitting machine

Abstract

The invention relates to a needle-rake combined traction device for a flat knitting machine, which comprises a plurality of traction mechanisms, and each traction mechanism comprises two push rods moving up and down, and a traction rake and a traction gilling comb transversely supported on the two push rods in parallel respectively; during bottom-starting knitting, the two push rods move upwards, the traction gilling comb and the traction rake are pushed upwards to respective highest positions in sequence, the highest position of the traction gilling comb is close to the highest position of the cylinder opening and higher than the highest position of the traction rake, and therefore bottom-starting knitting fabric can be pulled; the traction gilling comb and the traction rake move downwards in sequence along with the two push rods, the braided fabric is pulled in sequence, the traction gilling comb is separated from the bottom-starting braided fabric when the downward moving stroke is finished, and the traction rake continues to do the repeated traction action; the traction gilling comb capable of being attached to the lower portion of the cylinder opening is arranged, so that the traction gilling comb can hook waste yarn firstly as long as a few rows of knitting are carried out in bottom-starting knitting, then the traction rake replaces traction on knitted fabric, and therefore the knitting length of the waste yarn can be greatly reduced, and the waste yarn consumption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a pulling device for a flat knitting machine, in particular to a needle-rake combined pulling device for a flat knitting machine. BACKGROUND

[0002] In order to prevent the loop from floating during the knitting process, a pulling device is usually provided to pull the knitted fabric, and such pulling is more important for full-fashioned knitting.

[0003] At present, in the initial knitting of a full-fashioned flat knitting machine, the initial position of the pulling rakes is far from the knitting cylinder, so a base needle comb device is required to pull the initial knitting. The base needle comb device is mainly composed of a thin steel plate and a plurality of base needle combs uniformly distributed on the thin steel plate. The base needle combs pull the knitted fabric in an integral form, and cannot achieve the need for local pulling of the knitted fabric. Moreover, the base needle combs cannot achieve consistent pulling force on different parts of the knitted fabric in full-fashioned knitting, such as consistent pulling force on the two parts of the sleeve and the body.

[0004] In addition, the movement of the base needle combs in the base device also requires an opening and closing device that cooperates with the head of the flat knitting machine and the pulling rakes, which makes the structure of the full-fashioned flat knitting machine complex and the manufacturing cost high. At the same time, the pulling force of the base needle combs needs to be strictly controlled, and a torque motor is usually used, which cannot be accurately controlled in position and is prone to malfunction, which may cause serious needle collision accidents. SUMMARY

[0005] To solve the above problems in the prior art, the present application provides a pulling device for a flat knitting machine, and the specific scheme is as follows: The traction rake is a kind of pulling device for a flat knitting machine with combined pulling of needles and rakes, comprising a plurality of pulling mechanisms respectively arranged at laterally symmetrical positions on the front and rear sides below the needle plate of the flat knitting machine, the pulling mechanism comprising a fixed seat, a driving member, a pushing member which is moved up and down by the action of the driving member, a group of pulling rakes which are pushed upward by the pushing member and are arranged in parallel laterally, and a fixed panel which covers the outer side of the fixed seat and is provided with rake slots, the pulling rake is guided by a guide structure and comprises a rake handle and a rake head which is arranged at the upper end of the rake handle and is provided with rotatable rake teeth, the pulling rake also comprises a group of pulling needle combs which are pushed upward by the pushing member and are arranged in parallel laterally, the pulling needle combs are provided with pulling hooks and are located at a position laterally spaced apart from adjacent pulling rakes and are guided by the guide structure, the fixed panel is also provided with needle comb slots; the pulling needle combs and the pulling rakes are respectively driven by the pushing member The pulling rake is again and repeatedly pushed upward by the pushing member and pulled downward with the pushing member at least under the action of gravity until the weaving is completed.

[0006] A further design of the above technical solution is as follows: the pushing member is a push rod, the push rod includes a first push rod and a second push rod, and the group of pulling rakes and the group of pulling needle combs are supported on the first push rod and the second push rod respectively.

[0007] The driving member is a nut that moves up and down along the screw, and the screw is arranged on the motor shaft.

[0008] The guide structure is composed of an axle pin and a guide groove for relative movement; the axle pin in the guide structure is arranged on a fixed seat, and the fixed seat also includes a fixed plate; a plurality of rake grooves and a plurality of needle combing grooves arranged laterally and parallel to each other and used for plugging the pulling rake rod and the pulling needle combing rod are provided above the inner cavity of the fixed seat, and the rake grooves and the needle combing grooves are arranged laterally at intervals that are adapted to the pulling rake and the pulling needle comb, and the axle pin includes an upper axle pin and a lower axle pin that pass through all the rake grooves and the needle combing grooves and are arranged parallel to each other above and below, and two laterally parallel guide grooves are provided below the rake groove and the needle combing groove for guiding the first push rod and the second push rod to move up and down respectively, the fixed plate is fixed to one side of the outer side of the guide groove, and the first push rod and the second push rod can be slid up and down between the fixed plate and the inner cavity of the fixed seat; a motor slot is provided below the inner cavity of the fixed seat, and the motor is accommodated in the motor slot, and the nut screwed to the screw on the motor shaft is adapted to the position of the pushed push rod.

[0009] The first push rod and the second push rod each include a horizontal rod and a vertical rod, the horizontal rod being vertically connected to the upper end of the vertical rod.

[0010] The nut includes two first nuts, the two first nuts being used to respectively drive the first push rod and the second push rod to move upward.

[0011] The first nut is provided with a first driving block on at least one side in the transverse direction, the top end surface of the first driving block constituting a first driving surface, one side of the vertical rod of the first push rod and the vertical rod of the second push rod in the transverse direction being respectively provided with a downwardly-directed notch corresponding to the side of the first driving block, the end surface of the notch towards the bottom constituting a first driven surface, the two first nuts moving upward respectively by the first driving surface on the respective first driving block pushing against the first driven surface at the lower end of the vertical rod of the first push rod and the vertical rod of the second push rod, so that the first push rod and the second push rod move upward.

[0012] The needle-rake combined pulling loom pulling device further includes a first switching swing rod and a second switching swing rod, the nut includes a second nut, the second nut driving the swinging of the first switching swing rod and the second switching swing rod by moving upward, the swinging first switching swing rod and the second switching swing rod respectively pushing the first push rod and the second push rod to move upward.

[0013] The first switching swing rod includes a first long arm rod and a first short arm rod rotating on the same axis, the second switching swing rod includes a second long arm rod and a second short arm rod rotating on the same axis, the second long arm rod being longer than the first long arm rod; the two sides of the second nut in the transverse direction are respectively provided with a first driving block and a second driving block, the top end surfaces of the first driving block and the second driving block respectively constituting a first driving surface and a second driving surface, the first driving surface being higher than the second driving surface, the vertical side surface below the top end surface of the first driving block constituting an abutting surface; the vertical rods of the first push rod and the second push rod are each provided with a sliding slot; the first long arm rod and the second long arm rod are respectively slidingly connected to the sliding slots on the vertical rods of the first push rod and the second push rod, the second driving surface and the first driving surface respectively moving upward to push the second short arm rod and the first short arm rod to make the second switching swing rod and the first switching swing rod swing upward and make the end of the first short arm rod move relative to the first driving surface, the second long arm rod and the first switching swing rod swinging upward respectively pushing the second push rod and the first push rod to move upward, the first short arm rod end sliding out of the first driving surface when it is disengaged from the pushing of the second nut, and the first short arm rod end being opposite to the abutting surface when the first driving surface continues to move upward, the first push rod remaining at the position when it is disengaged from the pushing of the second nut until the abutting surface moves out and is no longer opposite to the first short arm rod end, so that the first push rod moves downward and lags behind the second push rod.

[0014] The opening of the sliding slot hole on the second push rod towards the inside of the fixed seat is a tapered hole, and the hole depth is greater than the thickness of the vertical rod of the second push rod, so that a protrusion is formed on the outside of the vertical rod of the second push rod corresponding to the position of the sliding slot hole.

[0015] The guide slot in the guide structure is arranged on the rake handle of the pulling rake and the needle comb rod of the pulling needle comb, and the guide slot comprises a first guide slot arranged on the rake handle and a second guide slot arranged on the needle comb rod; the first guide slot comprises a first inclined straight slot and a first straight slot arranged vertically, and the first inclined straight slot is composed of a straight slot section and an inclined slot section connected to the lower end of the straight slot section and outside the straight slot section; the second guide slot comprises a second inclined straight slot and a second straight slot arranged vertically, and the second inclined straight slot is composed of a straight slot section and two inclined slot sections connected to the upper and lower ends of the straight slot section and outside the straight slot section; the first inclined straight slot on the rake handle and the second inclined straight slot on the needle comb rod are connected by an upper shaft pin, and the first straight slot on the rake handle and the second straight slot on the needle comb rod are connected by a lower shaft pin, so that the pulling rake and the pulling needle comb can be slid up and down and rotatably arranged on the fixed seat.

[0016] The width of the rake handle of the pulling rake and the width of the needle comb rod of the pulling needle comb are respectively matched with the width of the rake slot on the fixed seat and the width of the needle comb slot, and the symmetric center line of the rake head and the rake handle coincides, and the width of the rake handle is not wider than the width of the rake head.

[0017] The pulling device for the needle-rake combined pulling flat knitting machine further comprises a tension spring and a tension spring adjusting plate, the tension spring is provided with hooks at both ends; the outer side of the fixed plate is provided with a plurality of hooks arranged side by side and matched with the positions of the pulling needle combs; the tension spring adjusting plate is arranged on the outer side of the fixed plate and can be adjusted up and down, and the tension spring adjusting plate is provided with a plurality of hooks arranged side by side and matched with the positions of the pulling rakes; the pulling rakes and the pulling needle combs are both provided with hook holes, the hook holes of each pulling needle comb and the hook holes of each pulling rake are connected by the hooks at both ends of the tension spring hooking the corresponding hook holes, and the pulling rakes and the pulling needle combs are further pulled downward by the tension of the tension spring.

[0018] The pulling device for the flat knitting machine with combined needle and rake pulling also includes a push rod position adjustment unit, the push rod position section unit is arranged on both sides below the laterally symmetrical position of the fixed seat, and includes an adjusting rod and a nut seat connected to one end of the adjusting rod and an adjusting screw screwed on the nut seat, and the laterally symmetrical sides below the fixed seat are provided with placement grooves that are integrally adapted to the adjusting rod and the nut seat, and the adjusting rod and the nut seat as a whole can move up and down in the placement groove, the adjusting screw is rotatably arranged under the placement groove at the screw hole position corresponding to the nut seat, and the screw is rotated to move the adjusting screw up and down, and the placement groove is connected to the inner cavity of the fixed seat, and the adjusting rod can be extended into the inner cavity of the fixed seat. The adjusting screw is adjusted to make the adjusting rod rise and push against the lower ends of the first push rod and the second push rod, so that the first push rod and the second push rod are to the set position.

[0019] The pulling needle comb is located at a transversely spaced position of the pulling rake, including between every two adjacent pulling rakes, or between every two adjacent pulling rake units, and the pulling rake unit is formed by a plurality of transversely parallel pulling rakes.

[0020] A flat knitting machine, comprising a pulling device for the flat knitting machine that uses the needle and rake combined pulling method.

[0021] The present invention has the following beneficial effects: 1. The present application is provided with a drawing needle comb that can be placed close to the bottom of the tube mouth, so that when the flat knitting machine does only a few rows of knitting (commonly known as waste yarn) in the bottom knitting, the drawing needle comb can first hook the waste yarn, and then wait for the drawing needle comb to pull the knitted fabric to the position of the drawing rake and then the drawing rake will take over the drawing of the knitted fabric, thereby greatly reducing the length of the waste yarn that needs to be knitted to the position where it is pulled by the drawing rake, saving the amount of waste yarn and the time spent on waste yarn knitting.

[0022] 2. The highest position of the pulling needle comb of the present application is close to the bottom of the tube mouth but not extending out of the tube mouth, which can completely avoid the accident of needle collision and machine head stoppage caused by occasional misoperation when the bottom comb in the prior art needs to extend the bottom comb upward from the bottom of the pulling rake and the lower roller to complete the yarn hooking action after the machine head completes the first row of bottom weaving. At the same time, it eliminates the complicated set of bottom comb devices and the opening and closing device of the pulling rake, greatly simplifies the pulling system, and thus greatly saves manufacturing costs.

[0023] 3. The pulling needle comb of the present application moves downward under the action of its own gravity and the tension spring to pull the woven fabric, so the pulling force is elastic, and local flexible pulling can be achieved when the bottom is lifted, overcoming the defect that the bottom lifting needle comb in the prior art is a rigid long horizontal piece structure and cannot achieve local flexible pulling.

[0024] 4. In addition, the pulling needle comb and the pulling rake of the present application can share a driving member to drive, which can save the amount of motor, thereby further saving the manufacturing cost of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Position structure schematic diagram of the pulling mechanism of the first embodiment of the present application; Figure 2 Position structure schematic diagram of the pulling mechanism of the first embodiment of the present application; Figure 1 Enlarged view of part C of the position structure schematic diagram shown in the figure; Figure 3 Structure schematic diagram of the pulling mechanism of the first embodiment of the present application, wherein: a is a front view (part of the fixed panel is omitted), and b is a side view; Figure 4 Three-dimensional structure schematic diagram of the pulling rake; Figure 5 Three-dimensional structure schematic diagram of the pulling needle comb; Figure 6 Three-dimensional structure schematic diagram of the pulling mechanism of the first embodiment of the present application; Figure 3 Transmission structure schematic diagram of the pulling rake, the pulling needle comb, the push rod and the driving member in the pulling mechanism shown in the figure; Figure 7 Pulling rake in the retracted and extended states in the first embodiment of the present application, wherein: a is the pulling rake in the retracted state, and b is the pulling rake in the extended state; Figure 8 Operation state schematic diagram of the pulling needle comb in the first embodiment of the present application, wherein: a is the retracted state of the pulling needle comb reaching the highest position, b is the extended state of the pulling needle comb moving downward from the highest position, and c is the retracted state of the pulling needle comb after the pulling is completed; Figure 9 Structure schematic diagram of the pulling mechanism of the second embodiment of the present application, wherein: a is a front view (part of the fixed panel is omitted), and b is a side view; Figure 10 Three-dimensional structure schematic diagram of the pulling mechanism of the second embodiment of the present application; Figure 9 Transmission structure schematic diagram of the pulling rake, the pulling needle comb, the push rod and the driving member in the pulling mechanism shown in the figure; Figure 11 Front view of the fixed seat structure in the pulling mechanism of the second embodiment of the present application; Figure 12 Cross-sectional view of the fixed seat shown in the figure, wherein: a is the H-H cross-sectional view of the fixed seat shown in the figure, b is the J-J cross-sectional view of the fixed seat shown in the figure, and c is the I-I cross-sectional view of the fixed seat shown in the figure; Figure 11 Cross-sectional view of the fixed seat shown in the figure, wherein: a is the H-H cross-sectional view of the fixed seat shown in the figure, b is the J-J cross-sectional view of the fixed seat shown in the figure, and c is the I-I cross-sectional view of the fixed seat shown in the figure; Figure 11 Cross-sectional view of the fixed seat shown in the figure, wherein: a is the H-H cross-sectional view of the fixed seat shown in the figure, b is the J-J cross-sectional view of the fixed seat shown in the figure, and c is the I-I cross-sectional view of the fixed seat shown in the figure; Figure 11 Cross-sectional view of the fixed seat shown in the figure, wherein: a is the H-H cross-sectional view of the fixed seat shown in the figure, b is the J-J cross-sectional view of the fixed seat shown in the figure, and c is the I-I cross-sectional view of the fixed seat shown in the figure; Figure 11 Cross-sectional view of the fixed seat shown in the figure, wherein: a is the H-H cross-sectional view of the fixed seat shown in the figure, b is the J-J cross-sectional view of the fixed seat shown in the figure, and c is the I-I cross-sectional view of the fixed seat shown in the figure; Figure 13 Three-dimensional view of the fixed panel in the pulling mechanism of the second embodiment of the present application; Figure 14 Nut structure schematic diagram in the pulling mechanism of the second embodiment of the present application, wherein: a is a three-dimensional view, b is a right view, c is a front view, and d is a left view; Figure 15Schematic diagram of the structure of the first switching rocker in Example 2, wherein: Figure a is a three-dimensional diagram; Figure b is a plan view; Figure 16 Schematic diagram of the structure of the second switching rocker in Example 2, wherein: Figure a is a three-dimensional diagram; Figure b is a plan view; Figure 17 Schematic diagram of the three-dimensional structure of the push rod of Example 2, wherein a is a schematic diagram of the three-dimensional structure of the first push rod, and b is a schematic diagram of the three-dimensional structure of the second push rod; Figure 18 1 is a planar side view of the push rod, wherein: FIG a is a planar side view of the first push rod, and FIG b is a planar side view of the second push rod; Figure 19 is a schematic diagram of the swinging member; Figure 20 is a schematic diagram of the fixed plate; Figure 21 This is a schematic diagram of the pulling rake and the pulling needle comb in the second embodiment in the initial low position, wherein: a is a front view; b is a side view; Figure 22 For Figure 21 The disassembly diagram of Figure b, wherein: Figure a is a schematic diagram of the pulling needle comb in the initial low position, and a schematic diagram of the pulling rake in the initial low position; Figure 23 Schematic diagram of the operation state of the pulling needle comb in Example 2, wherein: a is the retracted state of the pulling needle comb reaching the highest position, b is the extended state of the pulling needle comb moving downward from the highest position, and c is the retracted state of the pulling needle comb after completing the pulling; Figure 24 For the second embodiment of the pulling needle rake line state diagram, wherein: a is the pulling rake reaches the highest position of the retracted state, b is the pulling rake extended state when moving downward from the highest position; Figure 25 Schematic diagram of the pulling needle comb and the pulling rake moving upward with the second nut in Example 2 Figure 1 , wherein: Figure a shows a state in which the first short arm is pushed upward by the second nut and disengaged from the first driving surface, and the pulling rake is in the highest position; Figure b shows a state in which the second short arm is not pushed by the second driving surface, and the pulling needle comb is in the initial low position; Figure c shows a combined state of the states shown in Figures a and b; Figure 26 Schematic diagram of the pulling needle comb and the pulling rake moving upward with the second nut in Example 2 Figure 2 , wherein: Figure a shows the state where the second nut continues to move upward and the first push rod is not pushed, so that the pulling rake remains in the highest position; Figure b shows the state where the second short arm is pushed by the second driving surface and is moved upward to the highest position; Figure c shows the combined state of Figures a and b; Figure 27 Schematic diagram of the pulling needle comb and the pulling rake in the second embodiment moving downward with the second nut Figure 1 , wherein: Figure a shows the state in which the second nut moves downward, the second switching rocker swings downward with the nut, the second push rod moves downward and the pulling needle comb moves downward accordingly; Figure b shows the state in which the first short arm is opposite to the abutment surface and cannot swing downward, so that the pulling rake remains in a high position; Figure c shows the combined state of Figures a and b; Figure 28 Schematic diagram of the pulling needle comb and the pulling rake in the second embodiment moving downward with the second nut Figure 2 , where: Figure a shows the state where the second nut continues to move downward to below the end surface of the short arm, the first switching rocker swings downward to cause the first push rod to move downward, and the pulling rake moves downward accordingly; Figure b shows the state where the pulling needle comb continues to move downward along with the second nut; Figure c is the combined state of Figures a and b; Figure 29 Schematic diagram of the pulling needle comb and the pulling rake in the second embodiment moving downward with the second nut Figure 3 , wherein: Figure a shows the state where the pulling rake continues to move downward with the second nut; Figure b shows the state where the pulling needle comb moves downward with the second nut to the initial low position; Figure c shows the combined state of Figures a and b; Figure 30 Schematic diagram of the pulling rake and pulling needle comb in Example 3.

[0026] In the figure: A-needle plate, A1-cylinder mouth, B-pulling mechanism, 1-pulling rake, 11-rake teeth, 12-rake handle, 13-rake head, 2-pulling needle comb, 21-pulling hook, 22-needle comb rod, 31-first push rod, 32-second push rod, 301-cross bar, 302-vertical bar, 3021-groove, 3022-chute hole, 3023-sliding protrusion, 41-first guide groove, 411-first oblique straight groove, 412-first straight groove, 42-second guide groove, 421-second oblique straight groove, 422-second straight groove, 43a upper shaft pin, 43b lower shaft pin, 44-short shaft pin, 51-nut, 511-first driving block, 5111-first driving surface, 5112-abutting surface, 512-second driving block, 5121-second driving surface 52-motor, 53-screw, 61-first switching rocker, 611-first driven part, 612-first driving end, 613-end surface, 62-second switching rocker, 63-third switching rocker, 71-swinging member, 72-tension spring, 701-tension spring hole, 8-fixed plate, 81-hole groove, 91-fixed seat, 911-rake groove, 912-pin combing groove, 913-guide groove on the push rod, 914-nut groove, 915-axis pin hole, 916-switching rocker hinge groove, 917-swinging member hinge groove, 918-motor slot, 92-fixed panel, 921-rake slot hole, 922-pin combing slot hole. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Some directional words involved in this application are defined as follows: 1) The directions of "inside" and "outside" are defined as "from outside to inside" from the outside of the fixed seat to the inner cavity of the fixed seat; 2) The transverse direction is consistent with the transverse direction described in the flat knitting machine; 3) "front" and "back" are consistent with the directions of the front needle bed and the rear needle bed described in the flat knitting machine. Example 1

[0029] The pulling device for the flat knitting machine of this embodiment is as follows: Figure 1 and Figure 2 As shown, it includes several pulling mechanisms B respectively arranged at the transverse symmetrical positions on the front and rear sides below the needle plate A of the flat knitting machine, combined with Figure 3 As shown, the pulling mechanism B includes a fixed seat 91, a fixed panel 92 covering the outside of the fixed seat 91, a driving member, a pushing member that moves up and down under the action of the driving member, and a pulling rake 1 and a pulling needle comb 2 that slide up and down and can rotate in the fixed seat 91. Figure 4 and Figure 5 As shown, the pulling rake 1 includes a rake handle 12 and a rake head 13 provided at the upper end of the rake handle 12. The rake head 13 is provided with rotatable rake teeth 11 (the specific arrangement of the rake teeth 11 can be found in the published patent 202011120222.9 A pulling rake for a pulling device of a flat knitting machine). The pulling needle comb 2 provided in this embodiment has a slender needle comb rod 22, and the upper end of the needle comb rod 22 is provided with a tooth-shaped pulling hook 21. The needle comb rod 22 and the rake handle 12 are both movably provided in the inner cavity of the fixed seat through a guide structure composed of a relatively movable guide groove and an axle pin. Above the inner cavity of the fixed seat are provided a plurality of rake grooves and a plurality of needle comb grooves that are arranged in parallel laterally and used to plug in the rake handle and the pulling needle comb needle comb rod, and the rake grooves and the needle comb grooves are arranged at intervals in the laterally direction. In this embodiment, they are arranged one by one. In the guide structure of this embodiment, the axis pin is arranged on the fixed seat 91, and the axis pin includes an upper axis pin and a lower axis pin that pass through all the rake grooves and the needle combing grooves and are arranged in parallel up and down; the guide groove is provided on the rake handle 12 and the needle combing rod 22, and the rake handle 12 is provided with a first guide groove 41, the first guide groove 41 includes a first oblique straight groove 411 and a first straight groove 412 arranged up and down, the first oblique straight groove 411 consists of a straight groove section and a lower oblique groove section connected to the lower end of the straight groove section and inclined downward and toward the outside of the fixed seat; the needle combing A second guide groove 42 is provided on the rod 22, and the second guide groove 42 includes a second oblique straight groove 421 and a second straight groove 422 arranged up and down. The second oblique straight groove 421 consists of a straight groove section and an upper oblique groove section and an upper oblique groove section connected to the upper and lower ends of the outer side of the straight groove section. The upper oblique groove section is an oblique groove section inclined upward and toward the outer side of the fixed seat, and the lower oblique groove section is an oblique groove section inclined downward and toward the outer side of the fixed seat. The upper oblique groove section and the lower oblique groove section are symmetrically arranged relative to the symmetry center line of the height direction of the second oblique straight groove section 421.

[0030] Combine Figure 6 As shown, the pushing member of this embodiment is a push rod, which includes a first push rod 31 and a second push rod 32. The first push rod 31 and the second push rod 32 can slide up and down in the fixed seat, and the first push rod 31 and the first push rod 32 respectively support a group of pulling rakes 1 and a group of pulling needle combs 2 arranged horizontally in parallel, and the pulling needle combs 2 are located at a horizontally spaced position between adjacent pulling rakes 1, and a fixed panel 92 covering the outside of the fixed seat 91 is provided with a number of needle comb slots for exposing the upper ends of the needle combs and a number of rake slots for exposing the rake teeth 11 on the pulling rake, and the positions of the needle comb slots and the rake slots are respectively adapted to the positions of the pulling hooks 21 on the needle combs 2 and the rake teeth 11 on the pulling rake 1 arranged horizontally in the inner cavity of the fixed seat.

[0031] The driving member of this embodiment is two first nuts 51 that can move up and down. At least one side of the first nut 51 is provided with a first driving block 511 for driving the push rod to move up, and the upper end surface of the driving block 511 forms a driving surface. The above-mentioned two push rods are composed of a vertical rod 302 and a horizontal rod 301 with a plate-like body. The horizontal rod is vertically connected to the upper end of the vertical rod 302. The inner cavity of the fixed seat is below the rake groove and the combing groove and is provided with two horizontal parallel guide grooves 913 for guiding the first push rod and the second push rod to move up and down respectively. The vertical rod is set in the guide groove, and one side of the vertical rod is provided with a notch facing downward and adapted to the upper end of the driving block 511. The downward end surface of the notch forms a driven surface. The two above-mentioned nuts 51 are respectively screwed on a screw 53 provided on the motor shaft of the motor 52. The two first nuts 51a are respectively screwed on a motor shaft. The screw is on the screw and is driven to move upward. When moving upward, the upper end driving surface of each first driving block 511 pushes against the driven surface of the push rod, pushing the corresponding push rod to move upward. The upward second push rod 32 and the upward first push rod 31 push a group of pulling needle combs 2 and a group of pulling rakes 1 forward and backward to move up to the highest position. Then the two nuts 51 move downward one after another, causing the second push rod and the first push rod to move downward one after another. The second push rod 32 and a group of pulling needle combs 2 thereon and the first push rod 31 and a group of pulling rakes 1 thereon follow the push rod to move downward under the action of their own weight. During the downward movement, the braided fabric is pulled downward by the rake teeth and the pulling hooks respectively.

[0032] When starting to weave, the two nuts 51 move upwards, driving the second push rod 32 and the first push rod 31 to move upwards, so that the pulling needle comb 2 and the pulling rake 1 are pushed up to their respective highest positions, see Figure 6, the pulling hooks 21 of the pulling comb 2 pass through the comb slot holes of the fixed panel 92 to reach the highest position close to the tube opening position, the height of the pulling hooks 21 is higher than the position of the tines 122 of the pulling rake 1 at the highest position, and the pulling comb 22 and the pulling rake 12 are guided by the respective guide structures 4 (the upper shaft pin moves from the lower inclined slot section to the straight slot section to produce inward rotation around the lower shaft pin) to present a retracting state of retracting to the inside of the transverse direction of the fixed panel 92, i.e. a non-pulling state, see Figure 7 a figure in Figure 8 a figure; then, the second push rod 32 nut 51 is driven to move downward, and then the pulling comb 2 supported on the second push rod 32 and the pulling rake 1 supported on the first push rod 31 move downward at least under the action of gravity, and at the initial stage of moving downward, they are guided by the corresponding guide structures (the upper shaft pin moves from the straight slot section to the lower inclined slot section to produce outward rotation around the lower shaft pin) to present an extending state of extending to the outside of the transverse direction of the fixed panel 92, i.e. a pulling state, see Figure 7 b figure in Figure 8 b figure, the pulling hooks 21 of the pulling comb 2 that extend first pass through the comb slot holes of the fixed panel 92 to hook the bottom knitted fabric first and pull it downward, and as the knitting and pulling comb 2 pulls, when the knitted fabric is pulled to the highest (working) position of the pulling rake, it is pulled by the pulling rake 1 in the extending state, the tines 11 of the pulling rake 1 pass through the rake slot holes of the fixed panel 92 to hook the knitted fabric and pull it downward, and the pulling comb 2 is guided by the guide structure (the shaft pin moves from the straight slot section to the upper inclined slot section) to present a retracting state of retracting to the inside of the transverse direction of the fixed panel 92 to release the pulling of the knitted fabric, see Figure 8 c figure, the bottom knitted pulling is completed, the second push rod 32 nut 51 that is driven to move upward no longer drives the second push rod 32 to move upward, and the pulling comb 2 is no longer pushed by the second push rod 32, the first push rod 31 nut 51 continues to drive and repeatedly drive the first push rod 31, and the pulling rake 1 is repeatedly pulled by the first push rod 31 until the knitting is completed. Example Two

[0033] This embodiment is a further more specific design of the pulling device for the flat knitting machine based on the mechanism of the above-mentioned embodiment.

[0034] The pulling mechanism therein is as shown in Figure 9, having the same pulling rake 1 and pulling pin comb 2 as those in the above-mentioned embodiment 1, the pulling rake 1 and the pulling pin comb 2 are guided by the same guide structure, and a group of pulling rakes 1 and a group of pulling pin combs 2 are supported on the first push rod 31 and the second push rod 32 respectively, and the pulling rake 1 on the first push rod 31 and the pulling pin comb 2 on the second push rod 32 are arranged at intervals. In this embodiment, the pulling pin comb 2 supported on the second push rod 32 is located between two adjacent pulling rakes 1 supported on the first push rod 31, but the difference is that the first push rod 31 and the first push rod 32 are guided by a common guide structure. The driving member is driven. The driving member of this embodiment is also a nut. A second nut 51b drives the first push rod 31 and the first push rod 32 by driving the first switching rocker 61 and the second switching rocker 62 to swing. At the same time, this embodiment also provides a tension spring 72 and a swinging member 71 and a fixed plate 90 in the fixed seat. A tension spring 72 is connected between each pulling rake 1 and the swinging member 71 and between each pulling needle comb 2 and the fixed plate 90, so that when the pulling rake 1 and the pulling needle comb 2 pull the fabric downward, in addition to utilizing the gravity they receive when moving downward, the tension of the tension spring is also utilized to jointly form a downward pulling force.

[0035] Combine Figure 10 The structure of the first push rod 31 and the first push rod 32 of this embodiment is basically the same as that of Example 1, that is, both push rods are composed of a horizontal rod 301 and a vertical rod 302 vertically connected to the lower end of the horizontal rod, and are placed in a left-right symmetrical structure. The second nut 51b driven by the screw on the motor shaft is placed at the center position of the left-right symmetrical structure of the two push rods. The first switching rocker 61 and the second switching rocker 62 are placed on the inner side of the push rod relative to the inner and outer directions of the fixed seat, and correspond to the positions of the first push rod and the second push rod respectively. The two switching rocker rods are in contact with the second nut 51b and are movably connected to the corresponding push rods respectively, so as to drive the two switching rocker rods to swing upward when pushed by the second nut, and swing downward accordingly when the second nut moves downward.

[0036] The above-mentioned pulling rake 1, pulling needle comb 2, first push rod 31, first push rod 32, first switching rocker, second switching rocker, nut 51, tension spring 72, swing member 71 and fixed plate 90 are all arranged in the inner cavity of the fixed seat 91, and the outer side of the fixed seat 91 is covered with a fixed panel 92.

[0037] like Figure 11 and Figure 12As shown, a plurality of vertically arranged and laterally parallel rake grooves 911 and pin combing grooves 912 are provided above the inner cavity of the fixed seat 91, and the rake grooves 911 and pin combing grooves 912 are laterally spaced and adapted to the pulling rake 1 and the pulling pin comb 2. The rake handle 12 of the pulling rake 1 and the pin combing rod 22 of the pulling pin comb 2 are respectively inserted into the rake grooves 911 and the pin combing grooves 912. The upper axis pin and the lower axis pin in the guide structure of this embodiment are the same as those in the above embodiment and are both long axis. Pin, an axis pin hole 915 is provided on the groove side wall of the rake groove 911 and the needle combing groove 912, and the upper axis pin and the lower axis pin arranged in parallel above and below respectively penetrate the axis pin holes 915 provided on all the rake grooves 911 and the needle combing grooves 912 at the corresponding positions and also penetrate the first oblique straight groove 411 and the first straight groove 412 on the rake handle inserted in the rake groove 911 and the second oblique straight groove 421 and the second straight groove 422 on the needle combing rod inserted in the needle combing groove to be positioned on the fixed seat 91. When the upper axis pin 43u in the first oblique straight groove 411 and the second oblique straight groove 421 moves relatively from the straight groove section to the lower oblique groove section, the pulling rake and the pulling needle comb are respectively caused to swing relative to each other in the first straight groove 412 and the second straight groove 422 toward the inner side of the fixed seat 91, forming the retracted state of the pulling rake 1 and the pulling needle comb 2, as shown in FIG. Figure 13 The pulling rake 1 and Figure 14 The drawing needle comb 2 in Figure a is at its highest (working) position; on the contrary, when the upper shaft pin 43u in the first oblique straight groove 411 and the second oblique straight groove 421 moves relatively from the lower oblique groove section to the straight groove section, the drawing needle comb 2 and the drawing rake 1 are swung toward the outside of the fixed seat 91 relative to the shaft pins in the first straight groove 412 and the second straight groove 422, respectively, to form the extended state of the drawing rake 1 and the drawing needle comb 2, as shown in FIG. Figure 13 Pulling rake 1 and Figure 14 b Figure pulling needle comb 2 is located in the position; when the axis pin 43u in the second oblique straight groove 421 moves from the straight groove section to the upper oblique groove section, the pulling needle comb 2 is relatively in the second straight groove 422. The long axis pin swings toward the inside of the fixed seat 91, forming a retracted state of the pulling needle comb, such as Figure 14 The position of the pulling needle comb 2 in Figure c corresponds to the lowest position. On the contrary, when the shaft pin 43u in the second oblique straight groove 421 moves from the upper oblique groove section of the straight groove section to the straight groove section, the pulling needle comb 2 swings toward the outside of the fixed seat 91 relative to the lower shaft pin 43d in the second straight groove 422, forming an extended state of the pulling needle comb.

[0038] Continue to see Figure 12The middle part of the inner cavity of the fixing base 91 is provided with two push rod guide grooves 913 arranged in parallel in the transverse direction, and the lower part is provided with a motor groove 918. The lower part of the motor groove 918 accommodates the motor body, and the upper part is used to accommodate the motor shaft provided with a screw rod and a second nut screwed on the screw rod, thereby substantially forming a nut groove 914 for the up-and-down movement of the nut. The inner side of the groove wall surface of the nut groove is further provided with a hinge groove, which includes a swing piece hinge groove 917 arranged at the central position of the inner cavity and used for hinging the swing piece, and a switching swing lever hinge groove 916 arranged on both sides of the swing piece hinge groove and used for hinging the switching swing lever. The swing piece 71 and the two switching swing levers are respectively hinged in the swing piece hinge groove 917 and the switching swing lever hinge groove 916.

[0039] As shown in Figure 13 , the fixing panel 92 is provided with rake groove holes 921 and needle comb groove holes 922 adapted to the rake 12 and the pulling needle comb 22 arranged in the transverse direction, and the rake teeth 122 and the pulling hooks 222 can respectively extend out of the rake groove holes 921 and the needle comb groove holes 922 to pull the knitted fabric.

[0040] As shown in Figure 14 , the second nut 51b of the embodiment is provided with a first driving block 511 and a second driving block 512 on the two sides of the body in the transverse direction, respectively. The top end surfaces of the first driving block 511 and the second driving block 512 respectively constitute a first driving surface 5111 and a second driving surface 5121, and the first driving surface 5111 is higher than the second driving surface 5121. At the same time, the side surface of the first driving block 511 perpendicular to the top end surface constitutes an abutting surface 5112, which faces the inside of the fixing base 91.

[0041] The driving blocks on both sides of the second nut 51b are used to drive the swinging of the two switching swing levers, as shown in Figure 15 and Figure 16As shown, the first switch swing lever 61 is used to push the first push lever and comprises a first long arm 611 and a first short arm 612 rotating on the same axis, the second switch swing lever 62 is used to push the second push lever 32 and comprises a second long arm 621 and a second short arm 622 rotating on the same axis, the first long arm is shorter than the second long arm, the first switch swing lever 61 and the second switch swing lever 62 are coaxially arranged and are respectively hinged in a hinged groove 916 and are respectively on the corresponding side of the first push lever 31 and the second push lever 32. The first short arm 612 of the first switch swing lever 61 and the second short arm 622 of the second switch swing lever respectively receive the driving of the first driving block 511 and the second driving block 512 on the second nut 51b, the second driving surface 5121 on the second driving block 512 moves upwards to push the second switch swing lever 62 through the second short arm 622 to swing upwards, and the first driving surface 5111 on the first driving block 511 moves upwards to push the first switch swing lever 61 to swing upwards, when the swing of the first switch swing lever 61 makes the first driven part of the first short arm disengage from the first driving surface, the end surface 613 of the first short arm is in a state of relative or abutting with the abutting surface 5112 of the first driving block, in this state, even if the nut moves, it can only be the movement of the nut relative to the end surface 613 of the first short arm, the abutting surface on the nut prevents the possible rotation of the first switch swing lever, so that the first driving block has no contact relationship with the first switch swing lever, cannot push the first switch swing lever, and the driving of the first switch swing lever stops, unless the abutting surface on the nut moves out of the position relative to or abutting with the end surface 613 of the first short arm. One end of the first long arm 611 of the first switch swing lever 61 and one end of the second long arm 621 of the second switch swing lever 62 are used to respectively push the first push lever and the second push lever, so one end of the two long arms respectively forms the first driving end 612 and the second driving end 622. The driving end of the two long arms is connected with the sliding groove hole of the corresponding push lever, and the connection adopts sliding connection, for this, the side surface of the driving end is set as a circular arc to reduce the friction of sliding. The moving stroke of the pulling comb 2 is greater than the moving stroke of the pulling rake 1, so the swing angle of the second switch swing lever 62 is greater than the swing angle of the first switch swing 61.

[0042] In combination Figure 17 And Figure 18As shown, the connecting end of the long arm lever of the switching swing lever is arranged on the vertical lever of the push rod, so that the vertical lever of the two push rods is provided with a sliding groove hole 3022, the first driving end 612 of the first switching swing lever and the second driving end 622 of the second switching swing lever are arranged in the sliding groove hole 3022 of the first push rod and the sliding groove hole 3022 of the second push rod respectively, and because the second long arm lever corresponding to the second switching swing lever 62 is longer than the first long arm lever corresponding to the first switching swing lever 61, the swing amplitude is large and the sliding length is also increased, so that the opening of the sliding groove hole 3022 on the second push rod towards the inside of the fixed seat is a tapered hole to adapt to the relatively large swing amplitude, and the sliding groove hole depth is increased to adapt to the relatively large sliding amplitude, so that the hole depth is larger than the thickness of the second push rod, and a protrusion is formed on the side of the second push rod outside the corresponding sliding groove hole position, as shown in the b drawing of Figure 17 , 18 .

[0043] And the thickness of the horizontal lever 301 of the first push rod 31 and the second push rod 32 of the embodiment is 1 / 2 of the thickness of the vertical lever 302, see Figure 17 , 18 , the vertical lever 302 is provided with a groove 3021 on one side of the thickness direction of the upper end, and the depth of the groove 3021 is adapted to the thickness of the horizontal lever 301, so that the side surface of the horizontal lever 301 corresponding to the groove is flush with the groove bottom surface of the vertical lever 302, forming a sliding surface of the horizontal lever and the vertical lever coplanar, the first push rod 31 and the second push rod 32 are arranged in sliding, 3024, so that the inner and outer sides of the vertical lever 302 of the first push rod 31 and the second push rod 32 are coplanar, and the horizontal lever 301 of the first push rod 31 and the horizontal lever 301 of the second push rod 32 are arranged inside and outside, the horizontal lever of the first push rod is on the inside of the horizontal lever of the second push rod 32, and the two horizontal levers will not interfere with each other when driving the pulling rake 1 and the pulling needle comb 2 arranged at intervals to move up and down, and the groove 3021 provides the possibility for the horizontal levers of the two push rods to move up and down in the space with a width of only one vertical lever thickness.

[0044] The embodiment is further provided with at least two sliding protrusions 3023 with a width adapted to the guide groove 913 on the side of the vertical lever of the push rod corresponding to the push rod groove, and the two push rods move up and down by sliding in the push rod groove through the sliding protrusions, thereby reducing the guide surface and reducing the sliding friction.

[0045] The both ends of the tension spring of the embodiment are provided with hooks, combined with Figure 4 and Figure 5 , the pulling rake and the pulling needle comb are provided with a hook hole 701 for hooking the hook of the tension spring, and each pulling rake 1 and each pulling needle comb 2 arranged above the inner cavity of the fixed seat are respectively hooked by the hook hole to receive the hook of one end of the corresponding tension spring; the hooks of the other ends of the tension springs respectively hooked in the pulling rake 1 and the pulling needle comb 2 are hooked on the swing member 71 and the fixed plate 90.

[0046] As shown in Figure 19 , the swing member 71 includes a hinged part 711 provided with a hinge hole and a connecting rod 712 connected to the swing end of the hinged part and arranged transversely, the connecting rod is provided with a plurality of hook holes 701 arranged transversely in parallel, and each hook hole 701 is arranged at the corresponding position of the connecting rod to hook the other end of the tension spring of the pulling comb 2. The swing member is hinged in the swing member hinge groove 917 of the fixed seat 91 through the hinge hole of the hinged part, and the tension of the tension spring of the pulling comb is adjusted through the swing angle of the swing member. The swing angle can be adjusted by pressing the swing member position with the nut. After the swing position is determined, the up and down movement of the connecting rod is limited by the limiting block arranged at the upper end of the connecting rod. In this embodiment, a special limiting block is not arranged, but the fixed plate with adjustable up and down position is ingeniously used to limit the swing member from the lower end of the fixed plate. In addition, a plurality of tension spring holes 701 are arranged on the outer side of the lower end of the fixed plate 90 to hook the tension spring of the pulling needle comb, as shown in Figure 20 , and the fixed plate 90 is provided with a clearance hole 81 corresponding to the protrusion on the outer side of the vertical rod 302 of the second push rod 32 to facilitate the inner side of the fixed plate to be attached to the second push rod.

[0047] In this embodiment, the fixed seat is also provided with a push rod position adjusting unit 8 for adjusting the lowest position of the stroke of the two push rods, that is, adjusting the stroke of the push rod. Please refer to Figure 9 , which is arranged on the horizontal two sides below the fixed seat. The push rod position adjusting unit 8 includes an adjusting rod 81 for receiving the downward movement of the push rod and a nut seat 82 arranged at one end of the adjusting rod and an adjusting screw 83 screwed to the nut seat. The horizontal two sides below the fixed seat are respectively provided with a placing groove for placing the adjusting rod and a nut seat sliding groove in communication with the placing groove for slidingly connecting the nut seat 82 and a screw rod groove arranged below the sliding groove and in communication with the sliding groove. The screw rod can be arranged in the screw rod groove in a rotatable and non-up and down movable manner. The adjusting rod 81 of this embodiment is a horizontally arranged rod. Rotating the adjusting screw 83 makes the nut seat move up and down along the nut seat sliding groove, so that the horizontally arranged adjusting rod moves up and down. When the push rod moves downward, its position is adjusted by following the upward or downward movement of the adjusting rod, so that the stroke of the upward and downward movement of the push rod is adjusted.

[0048] The further arrangement of the adjusting unit 90 is to arrange a protruding block corresponding to the position of the push rod on the adjusting rod to reduce the upward movement surface of the adjusting rod when the horizontally arranged adjusting rod moves upward, so as to reduce the interference of the upward movement of the adjusting rod to other components.

[0049] Before the bottom weaving, if the pulling comb 1 and the pulling needle comb 2 are pushed to the highest position of each other, the pulling comb 1 and the pulling needle comb 2 are both in the initial low position, as shown in Figure 21 , Figure 22In the state shown, the nut 51 is driven upward by the motor 32. Since the first driving surface 5111 is higher than the second driving surface 5121, the first driving surface 5111 first pushes the first short arm to make the first switching rocker 61 swing upward, as shown in FIG. Figure 25 The long arm rod drives the first push rod 31 to move upward, and the first push rod 31 pushes the pulling rake 1 to move upward until it reaches the highest position. The pulling rake is as follows Figure 24 In the state shown in Figure a, the pulling rake 1 is in the retracted state at this position as described above; the second driving surface 5121 that arrives later pushes the second short arm to make the second switching rocker 62 swing upward, as shown in FIG. Figure 26 The upper long arm rod drives the second push rod 32 to move upward, and the second push rod 32 pushes the pulling needle comb 2 to move upward until it is pushed to the highest position close to the barrel mouth. The pulling needle comb 2 is also as shown in FIG. Figure 23 The retracted state is shown in Figure a.

[0050] At the beginning of the bottom weaving, the pulling rake 1 and the pulling needle comb 2 are both at the highest position, and the motor 32 drives the second nut 51b to move downward according to the set program. Figure 27 , the second switching rocker 62 swings downward as the second driving surface 5121 on the second nut moves downward, and the second push rod moves downward accordingly. At this time, because the end surface of the first short arm of the first switching rocker has slid out of the first driving surface 5111 and is opposite to or abuts against the abutting surface 5112 on the first driving block 511, the first switching rocker cannot swing, and the first push rod cannot move downward as the second nut moves downward but remains in the highest position. The pulling needle comb 2 is guided by the guide structure to swing from the retracted state to the extended state at the beginning of the downward movement, as shown in FIG. Figure 23 In the middle figure b, the pulling hook extends out of the fixed panel to hook the braid and moves downward with the second push rod under the pulling force formed by its own gravity and the tension of the tension spring 72, pulling the braid downward during the downward movement; as the second nut continues to move downward, the first driving block 511 moves downward to below the end surface of the first short arm, as shown in FIG. Figure 28 The first switching rocker can swing downward freely, and then the first push rod lags behind the second push rod and begins to move downward, and the pulling rake moves downward accordingly, and at the beginning of the downward movement, it swings from the retracted state to the extended state under the guidance of the guide structure, see Figure 24 In the middle b figure, the pulling rake pulls the braided fabric downwards together with the pulling needle comb under the pulling force formed by its own gravity and the tension of the tension spring 72; the pulling needle comb pulls one end of the braided fabric downwards for a distance and then is guided by the guide structure to swing from the extended state to the retracted state, as shown in FIG. Figure 23 Figure c in the middle, and move down to the initial lower position, such as Figure 29, the pulling rake 1 continues to move down until the set down stroke is completed, thus completing a pulling stroke of the knitted fabric. The subsequent upstroke cannot hook the knitted fabric because the pulling rake 1 is in the extended state and the tines are rotatable. The second nut repeatedly moves up and down, and the first switching swing lever 61 repeatedly swings up and down, but the stroke is not greater than the first stroke, until the knitting is completed. Because the subsequent reciprocating stroke of the second nut is less than the first stroke, the second driving surface is always higher than the initial low position, and the second switching swing lever 62 is no longer pushed by the second driving surface, and no longer pushes the second switching swing lever 62. Example Three

[0051] The pulling device of the flat knitting machine of the present embodiment is basically the same as that of Example Two, except that: As shown in Figure 30 , in the present embodiment, each pulling needle 2 is arranged at intervals between every two adjacent pulling rake units, and two transversely parallel and adjacent pulling rakes 1 form a pulling rake unit. The present embodiment can also be arranged such that more than two adjacent pulling rakes 1 form a pulling rake unit.

[0052] The technical solutions of the present application are not limited to the above-mentioned embodiments. For example, the driving member in the present application can also be a rack driven by a gear. Therefore, any technical solution obtained by equivalent replacement falls within the scope of protection claimed by the present application.

Claims

1. A pulling device for a flat knitting machine with a combined needle and rake pulling mechanism, comprising a plurality of pulling mechanisms respectively arranged at laterally symmetrical positions on the front and rear sides below a needle plate of the flat knitting machine, the pulling mechanism comprising a fixed seat, a driving member, a pushing member that is moved up and down by the action of the driving member, a group of pulling rakes that are pushed upward by the pushing member and are laterally arranged in parallel, and a fixed panel that covers the outer side of the fixed seat and is provided with rake slots, the pulling rakes being guided by a guide structure and comprising a rake handle and a rake head provided at the upper end of the rake handle and having rotatable rake teeth, characterized in that: The cam is provided with a plurality of cams, each of which is provided with a plurality of cams, and the plurality of cams are provided with a plurality of cams, each of which is provided with a plurality of cams, and the plurality of cams are provided with a plurality of cams, and the plurality of cams are provided with a plurality of cams. The pulling rake is again and repeatedly pushed upward by the pushing member and pulled downward with the pushing member at least under the action of gravity until the weaving is completed.

2. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 1, characterized in that: The pushing member is a push rod, which includes a first push rod and a second push rod. The group of pulling rakes and the group of pulling needle combs are supported on the first push rod and the second push rod respectively.

3. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 2, characterized in that: The driving member is a nut that moves up and down along the screw, and the screw is arranged on the motor shaft.

4. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 3, characterized in that: The guide structure is composed of an axle pin and a guide groove for relative movement; the axle pin in the guide structure is arranged on a fixed seat, and the fixed seat also includes a fixed plate; a plurality of rake grooves and a plurality of needle combing grooves arranged laterally and parallel to each other and used for plugging the pulling rake rod and the pulling needle combing rod are provided above the inner cavity of the fixed seat, and the rake grooves and the needle combing grooves are arranged laterally at intervals that are adapted to the pulling rake and the pulling needle comb, and the axle pin includes an upper axle pin and a lower axle pin that pass through all the rake grooves and the needle combing grooves and are arranged parallel to each other above and below, and two laterally parallel guide grooves are provided below the rake groove and the needle combing groove for guiding the first push rod and the second push rod to move up and down respectively, the fixed plate is fixed to one side of the outer side of the guide groove, and the first push rod and the second push rod can be slid up and down between the fixed plate and the inner cavity of the fixed seat; a motor slot is provided below the inner cavity of the fixed seat, and the motor is accommodated in the motor slot, and the nut screwed to the screw on the motor shaft is adapted to the position of the pushed push rod.

5. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 4, characterized in that: The first push rod and the second push rod both include a horizontal rod and a vertical rod with a plate-shaped body, and the horizontal rod is vertically connected to the upper end of the vertical rod.

6. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 5, characterized in that: The nut includes two first nuts, and the two first nuts are used to respectively drive the first push rod and the second push rod to move upward.

7. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 6, characterized in that: A first driving block is provided on at least one side of the first nut in the transverse direction, and the top surface of the first driving block constitutes a first driving surface. One side of the transverse direction of the vertical rod of the first push rod and the vertical rod of the second push rod are respectively provided with a notch adapted to the corresponding side of the first driving block and directed downward, and the end surface facing downward in the notch forms a first driven surface. When the two first nuts move upward, the first driving surfaces on their respective first driving blocks push against the first driven surfaces at the lower ends of the vertical rods of the first push rod and the second push rod, so that the first push rod and the second push rod move upward.

8. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 5, characterized in that: It also includes a first switching rocker arm and a second switching rocker arm, and the nut includes a second nut. The second nut drives the first switching rocker arm and the second switching rocker arm to swing by moving upward, and the swinging first switching rocker arm and the second switching rocker arm respectively push the first push rod and the second push rod to move upward.

9. The pulling device for a flat knitting machine with combined needle and rake pulling according to claim 8, characterized in that: The first switching rocker arm includes a first long arm arm and a first short arm arm that rotate coaxially, and the second switching rocker arm includes a second long arm arm and a second short arm arm that rotate coaxially, and the second long arm arm is longer than the first long arm arm; a first driving block and a second driving block are respectively provided on both sides of the transverse direction of the second nut, and the top surfaces of the first driving block and the second driving block respectively constitute the first driving surface and the second driving surface, the first driving surface is higher than the second driving surface, and the vertical side surface below the top surface of the first driving block constitutes the abutment surface; the vertical rods of the first push rod and the second push rod are both provided with sliding grooves; the first long arm arm and the second long arm arm are respectively connected to the vertical rods of the first push rod and the second push rod The first push rod remains in the position when it is pushed by the second nut until the abutment surface moves out and is no longer opposite to the end of the first short arm rod, causing the first push rod to move downward and lag behind the second push rod.

10. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 9, characterized in that: The opening of the chute hole on the second push rod toward the inner side of the fixing seat is a hole with a tapered surface, and the depth of the chute hole is greater than the thickness of the vertical rod of the second push rod, so that a bulge is formed on the outer side of the vertical rod of the second push rod corresponding to the position of the chute hole.

11. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 4, characterized in that: The guide groove in the guide structure is arranged on the rake handle of the pulling rake and the needle comb rod of the pulling needle comb, and the guide groove includes a first guide groove provided on the rake handle and a second guide groove provided on the needle comb rod; the first guide groove includes a first oblique straight groove and a first straight groove arranged up and down, the first oblique straight groove consists of a straight groove section and an oblique groove section connected to the lower end of the straight groove section and located outside the straight groove section; the second guide groove includes a second oblique straight groove and a second straight groove arranged up and down, the second oblique straight groove consists of a straight groove section and two oblique groove sections connected to the upper and lower ends of the straight groove section and located outside the straight groove section; the first oblique straight groove on the rake handle and the second oblique straight groove on the needle comb rod are connected by an upper shaft pin, and the first straight groove on the rake handle and the second straight groove on the needle comb rod are connected by a lower shaft pin, so that the pulling rake and the pulling needle comb can slide up and down and be rotatable on the fixed seat.

12. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 11, characterized in that: The width of the rake handle of the pulling rake and the width of the needle comb rod of the pulling needle comb are respectively adapted to the width of the rake groove and the needle comb groove on the fixed seat, and the symmetrical center lines of the rake head and the rake handle coincide, and the width of the rake handle is not wider than the width of the rake head.

13. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 12, characterized in that: It also includes a tension spring and a tension spring adjustment plate, with hooks provided at both ends of the tension spring; a plurality of hook holes arranged in parallel and adapted to the position of the pulling needle comb are provided on the outer side of the fixed plate; the tension spring adjustment plate can be adjusted up and down and is arranged on the outer side of the fixed plate, and the tension spring adjustment plate is provided with a plurality of hook holes arranged in parallel and adapted to the position of the pulling rake, and hook holes are provided on the pulling rake and the pulling needle comb, and each hook hole of the pulling needle comb is connected to the hook hole at the corresponding position of the fixed plate and the hook hole of each pulling rake is connected to the hook hole at the corresponding position of the tension spring adjustment plate through the hooks at both ends of the tension spring to hook the hook holes at the corresponding positions, and the pulling rake and the pulling needle comb also use the tension of the tension spring to pull the braid downward.

14. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 5, characterized in that: The adjusting screw is adjusted to move up and down in the sliding groove, so that the adjusting rod and the nut seat can be adjusted and pushed against each other to move the adjusting rod and the nut seat respectively.

15. The pulling device for a flat knitting machine with a needle and rake combined with pulling according to claim 1, characterized in that: The pulling needle comb is located at a transversely spaced position of the pulling rake, including between every two adjacent pulling rakes, or between every two adjacent pulling rake units, and the pulling rake unit is formed by a plurality of transversely parallel pulling rakes.

16. A flat knitting machine, characterized in that: A pulling device for a flat knitting machine using the needle and rake combined pulling method according to any one of claims 1 to 15.

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