CN201148508Y - Quality cam drive mechanism of computer knitting traverse weaving machine - Google Patents

Abstract

The density triangle driving mechanism of a computer flat knitting machine belongs to the knitting mechanical technology field, including a motor, a cam, a clip arm, a spring clip and a second roller. The motor is arranged on a motor base which is fixed on a triangular floor. The motor shaft of the motor is linked with the cam in a way of transmitting. A roller groove is formed on one side of the cam. The upper surface of the clip arm is equipped with a first roller. One end of the clip arm is arranged on a stent and a roller cavity is formed on the other end of the clip arm. The near middle part of the spring clip is articulated with the clip arm. One end of the spring clip is linked with the clip arm and the other end is in contact with the corresponding end of the clip arm. The second roller is arranged on a density triangle guide block on a density triangle back and is accommodated in the roller cavity. The density triangle driving mechanism is characterized in that the mechanism also includes a barrier spring which is equipped with a first spring arm and a second spring arm. The middle of the barrier spring is positioned on the triangular floor in any positioning way, such as a direct positioning way or an indirect positioning way. The first spring arm is in contact with the density triangle guide block. The second spring arm is fixed on the triangular floor. The density triangle driving mechanism has the advantage of being capable of eliminating the movement warp of the density triangle.

Description

The density triangular driving mechanism of computer plain flat knitter

Technical field

The utility model belongs to technical field of knitting machinery, is specifically related to a kind of density triangular driving mechanism of computer plain flat knitter.

Background technology

The reason of knowing perfectly well as those of skill in the art, on the head of the knitting mechanism of computer plain flat knitter, be fixed with a pair of cam base plate (the industry custom claims forward and backward cam base plate), movably be provided with a pair of density triangular on every piece of cam base plate, the motion of each density triangular realizes by the work of corresponding density triangular driving mechanism.When the knitting mechanism of computer plain flat knitter is in band yarn weaving state, every left and right the making a round trip of head, density triangular is just correspondingly done once upper and lower motion so.

The concrete structure of the density triangular driving mechanism of the computer plain flat knitter in the prior art is by shown in Figure 1, comprise motor 1 with rotating function, cam 2, jig arm 3, spring clip 4, second roller 5, motor 1 is located on the motor cabinet 12, motor cabinet 12 is fixed on the support 121, support 121 is fixing with cam base plate 7, the motor shaft holder 21 that extends on the motor shaft 11 of motor 1 and the cam 2 connects firmly, constitute roller groove 22 in 2 sides of cam towards cam base plate 7, the middle part of the upper surface of jig arm 3 is provided with one and is used for being received into first roller 31 that described roller groove 22 goes, one end of jig arm 3 has extended a gripper arm seat 32, gripper arm seat 32 hub settings are extending on the gyroaxis on the support 121 1211, the other end of jig arm 3 constitutes a roller chamber 33, spring clip 4 nearly middle parts are hinged with jig arm 3 nearly middle parts, one end bearing has an end of spring 41, the other end of spring 41 is bearing on the jig arm 3, the other end of spring clip 4 pastes mutually with the corresponding end of jig arm 3 and touches, second roller 5 is located on the density triangular guiding block 61 at density triangular 6 back sides, and is contained in the roller chamber 33.When the motor shaft 11 of motor 1 clockwise rotates, drive cam 2 and do motion clockwise, because first roller 31 of jig arm 3 is in the roller groove 22 that is contained on the cam 2, therefore when cam 2 motions, just drive jig arm 3 swings, again owing to second roller 5 on the density triangular guiding block 61 that is fixedly arranged on density triangular 6 back sides is contained in the roller chamber 33, therefore when jig arm 3 swings, just drive density triangular guiding block 61, drive density triangular by density triangular guiding block 61 and move down on the adjustment of the density triangular on the cam base plate 7 groove 71, vice versa.

The shortcoming that said mechanism exists is: no matter be from the processing technology angle of parts or from the angle of assembling of parts, all can't make the cell wall of first roller 31 and roller groove 22 remain to gratifying subsides and touch degree, that is to say in motion process, have movement clearance between first roller 31 and the roller groove 22, be embodied in: the position of first roller 31 in roller groove 22 exists two kinds of uncertain subsides to touch the position, promptly might paste and touch cell wall on roller groove 22, also might paste the following cell wall that touches at roller groove 22, and the existence in gap can cause density triangular 6 to produce movement warp, the size in gap is to equate with the movement warp of density triangular 6, known deviation is 0.04-0.05mm, as if although this departure is insignificant for the delegation of fabric, accumulation gets up to be enough to the raising of fabric class is constituted restriction.

Summary of the invention

Task of the present utility model is the density triangular driving mechanism that the computer plain flat knitter of the movement clearance between a kind of cell wall that can eliminate first roller and roller groove will be provided.

Task of the present utility model is finished like this, a kind of density triangular driving mechanism of computer plain flat knitter, it comprises the motor with rotating function, cam, jig arm, spring clip, second roller, motor is on motor cabinet, motor cabinet is fixed on the cam base plate by support, the motor shaft of motor and cam drive connect, cam constitute a roller groove towards a side of cam base plate, the nearly middle part of jig arm upper surface is provided with one and is used for being received into first roller that roller groove goes, one end hub setting of jig arm is on support, the other end constitutes a roller chamber, the nearly middle part of spring clip is hinged with jig arm, one end connects by spring and jig arm, the other end contacts with the corresponding end of jig arm, second roller is located on the density triangular guiding block at the density triangular back side and is contained in the described roller chamber, characteristics are: also include one and constitute first, second spring arm stop spring, this stop spring the middle part be positioned on the cam base plate with any one locate mode of direct location or indirect addressing, its first spring arm contacts with the density triangular guiding block, and second spring arm is fixed on the cam base plate.

In a specific embodiment of the present utility model, the described nearly middle part winding that stops spring is on fixture, and fixture is fixed on the cam base plate.

In another specific embodiment of the present utility model, the described nearly middle part winding that stops spring is on fixture, and fixture directly extends on cam base plate.

Go back in the specific embodiment guiding block contacts side surfaces of described first spring arm and density triangular guiding block afterbody of the present utility model.

The utility model stops spring owing to being provided with, by stopping that spring produces the power of holding of compeling to the density triangular guiding block, and then in the roller chamber, act on jig arm by second roller that is located on the density triangular guiding block, first roller on the jig arm is being remained with the cell wall of roller groove paste the state that touches mutually, thereby the gap between the cell wall of first roller and roller groove is eliminated, the movement warp of density triangular is eliminated.

Description of drawings

Fig. 1 is the structure chart of the density triangular driving mechanism of the computer plain flat knitter in the prior art.

Fig. 2 is the structure chart of the density triangular driving mechanism of computer plain flat knitter of the present utility model.

The specific embodiment

See also Fig. 2, the applicant mentions in front, the head of knitting mechanism has a pair of cam base plate 7, on every piece of cam base plate 7, has a pair of density triangular 6, each density triangular 6 is equipped with a cover density triangular driving mechanism, under the effect of this mechanism, density triangular 6 is being moved up and down under the guiding of density triangular guiding block 61 on the cam base plate 7 on the default density triangular adjustment groove 71.Based on the example of drawing inferences about other cases from one instance, the guiding mechanism that only is directed to one of them density triangular 6 below is described.

The motor of motor 1 for having the rotating function of the density triangular driving mechanism of the computer plain flat knitter that the utility model is recommended, it is positioned on the motor cabinet 12, and motor cabinet 12 adopts screw and cam base plate 7 to fix by support 121, on support 121, extend rotating shaft once 1211 vertically downward, the motor shaft 11 of motor 1 extend in the axis hole 211 that cam 2 back sides are the motor shaft holder 21 that extends of upper surface, constitute and cam 2 transmissions connection, drive cam 2 rotations along with the rotation of motor shaft 11.The front of cam 2 is that cam 2 is processed with roller groove 22 one towards the one side of (facing) cam base plate 7.The nearly middle part of the upper surface of jig arm 3 is provided with one first roller 31, and this first roller 31 matches with roller groove 22, and along with cam 2 motions, just the free end that can drive jig arm 3 by first roller 31 is that illustrated left end is done upper and lower swing.The right-hand member of jig arm 3 has extended a gripper arm seat 32, and on aforesaid gyroaxis 1211, and the left end of jig arm 3 is aforesaid free end to gripper arm seat 32 with the hub setting of door-hinge form ground, and constitutes roller chamber 33.The version that spring clip 4 matches with jig arm 3 is just as the form of daily being seen clip, specifically: the hinged seat that extends an ear pendant shape at the nearly middle part of spring clip 4, also to be the hinged seat of ear pendant shape hinged with similarly being arranged on shape on the jig arm 3 with this hinged seat by little axle 42, thereby realize spring clip 4 and jig arm 3 are connect, the right-hand member of spring clip 4 is supported with an end of spring 41, and the other end of spring 41 is bearing on the jig arm 3, the left end of spring clip 4 and an end in contact that constitutes the jig arm 3 in roller chamber 33.Under the expansion force effect of spring 41, the right-hand member of spring clip 4 is outwards repelled, thereby the left end that makes spring clip 4 is close to the corresponding end of jig arm 3, make to be received into that second roller 5 well contacts with the chamber wall in roller chamber 33 in the roller chamber 33, just played the effect of eliminating the gap between second roller 5 and the roller chamber 33.

The achievement part of the technical scheme of recommending as the utility model, the outside left corresponding to the density triangular guiding block 61 at density triangular 6 back sides be equipped with one piece constitute first, second spring arm 81,82 stop spring 8, this stops that the middle part of spring 8 both can directly be positioned on the cam base plate 7, also can indirect addressing on cam base plate 7.With regard to indirect addressing, present embodiment promptly belongs to, specifically be by one piece of additional screws as fixture 83, the middle part that will stop spring 8 with around the complex attitude be nested with on screw, take it by screw and navigate on the cam base plate 7, screw and cam base plate 7 are rotated with.Establish one piece if directly hang down and be used to scoop out the spring stack that stops spring 8 on cam base plate 7, the locate mode that the so this middle part that will stop spring 8 navigates on the spring stack is considered as direct location.First spring arm 81 that stops spring 8 is kept out on the guiding block side 611 of density triangular guiding block 61 afterbodys, and its second spring arm 82 both can directly be fixed on the cam base plate 7, also can be fixed on as present embodiment on the alignment pin 821, alignment pin 821 vertically extends on cam base plate 7.

Please continue to see Fig. 2, when motor 1 work, if with clockwise motion is example, just drive cam 2 by its motor shaft 11 and do motion clockwise, is that left end is to lower swing by cam 2 by the free end that first roller 31 drives jig arm 3, and then it is descending to drive density triangular guiding block 61 by jig arm 3 by second roller 5, and it is descending to take density triangular 6 by density triangular guiding block 61, and vice versa.The every left and right reciprocal action under band yarn weaving state of the head of the knitting mechanism of computer plain flat knitter just makes density triangular 6 do once upper and lower motion by density triangular driving mechanism of the present utility model by driving density triangular guiding block 61 simultaneously.Since the density triangular guiding block 61 of density triangular 6 accepting all the time to stop spring 8 first spring arm 81 compel the power of holding, thereby state is touched in the gapless subsides that make first roller 31 that is located on the jig arm 3 be able to keep good with the cell wall of roller groove 22, first position of roller 31 in roller groove 22 pasted all the time and touched cell wall on roller groove 22 (also can claim internal groove side wall), the situation that can not occur or contact or contact with the following cell wall of roller groove 22 with the last cell wall of roller groove 22, the movement warp that finally makes density triangular 6 is zero, helps guaranteeing the class of braided fabric.

Claims (4)

1, a kind of density triangular driving mechanism of computer plain flat knitter, it comprises the motor (1) with rotating function, cam (2), jig arm (3), spring clip (4), second roller (5), motor (1) is on motor cabinet (12), motor cabinet (12) is fixed on the cam base plate (7) by support (121), the motor shaft (11) of motor (1) connects with cam (2) transmission, cam (2) constitute a roller groove (22) towards a side of cam base plate (7), the nearly middle part of jig arm (3) upper surface is provided with one and is used for being received into first roller (31) that roller groove (22) goes, one end hub setting of jig arm (3) is on support (121), the other end constitutes a roller chamber (33), the nearly middle part of spring clip (4) is hinged with jig arm (3), one end connects by spring (41) and jig arm (3), the other end contacts with the corresponding end of jig arm (3), second roller (5) is located at the density triangular guiding block (61) at density triangular (6) back side and goes up and be contained in the described roller chamber (33), it is characterized in that also including one constitutes first, second spring arm (81,82) stop spring (8), this stop spring (8) the middle part be positioned on the cam base plate (7) with any one locate mode of direct location or indirect addressing, its first spring arm (81) contacts with density triangular guiding block (61), and second spring arm (82) is fixed on the cam base plate (7).

2, the density triangular driving mechanism of computer plain flat knitter according to claim 1 is characterized in that the described nearly middle part winding that stops spring (8) on fixture (83), and fixture (83) is fixed on the cam base plate (7).

3, the density triangular driving mechanism of computer plain flat knitter according to claim 1 is characterized in that the described nearly middle part winding that stops spring (8) on fixture (83), and fixture (83) directly extends on cam base plate (7).

4, the density triangular driving mechanism of computer plain flat knitter according to claim 1 is characterized in that described first spring arm (81) contacts with the guiding block side (611) of density triangular guiding block (61) afterbody.

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