CN102995274A - Sinker control device of horizontal knitting machine - Google Patents

Abstract

A sinker control device of a horizontal knitting machine is arranged on a transverse plate spanned on a plurality of knitting needles to drive sinkers pivoted between the knitting needles which are arranged in parallel to each other to perform tilting motion. The sinker control device comprises a base, a linkage device which is arranged on the base and performs a driving stroke relative to the base, a first control cam and a second control cam which are pivoted on the linkage device, and a switching device connected with the linkage device. The switching device comprises at least one connecting rod connected with the linkage device, a switching seat connected with the connecting rod, and an elastic element sleeved on the connecting rod and providing the switching seat with a resisting force towards the transverse plate direction, wherein one side of the switching seat facing the transverse plate is provided with a magnetic part which is magnetically attracted with the transverse plate.

Description

Horizontal knitting machine sinker control device

technical field

The invention relates to a sinker control device, in particular to a sinker control device for a horizontal knitting machine.

Background technique

In the horizontal knitting machine, in order to control the yarn guided by the knitting needles to go through the process of unwinding, looping, stripping and knitting, etc., a sinker is set between the knitting needles. The side of the sinker opposite to the needle head of the knitting needle has a protruding outer edge. When the sinker rotates, the protruding outer edge presses against the yarn picked up by the knitting needle to form a yarn loop, thereby forming a yarn loop on the surface of the knitted product. Create patterns.

In order to control the rotation of the sinker, a control device is provided on one side of the sinker in the horizontal knitting machine. U.S. Patent No. US 5,475,990 discloses a sinker control driver, which includes two adjacently arranged first and second cams. The first and second cams are respectively supported on the erecting rod by two first parallel connecting rods and two second parallel connecting rods. In addition, the cams are linked by an auxiliary link. The first parallel connecting rod, the second parallel connecting rod and the auxiliary connecting rod interlock to control the activities of the first cam and the second cam, and then push the sinkers located in the first and second cams, Furthermore, the rotation angle can be changed to form yarn loops of different sizes. This interlocking structure can also refer to the sinker controllers recorded in other published information, such as China Taiwan Patent Case No. TW 446016, China Patent Case No. CN 201288244, China Patent Case No. CN 1544739, etc. .

Traditionally, the swing of the first cam and the second cam is controlled by a switching element linked to the first cam and the second cam, and the switching element is controlled according to the friction force or magnetic attraction force between the needle bed and the needle bed. The switch of position further drives the swing of the first cam and the second cam. The distance between the traditional switching part and the needle bed is fixed, so the flatness of the needle bed is quite required. If the distance is too large, the switching part will not perform the switching stroke. If the distance is too small, the friction between the switching part and the needle bed will increase. The switch will be locked on the needle bed.

Contents of the invention

The main purpose of the present invention is to overcome the problem that the traditional sinker control device may not be able to switch smoothly when it moves relative to the needle bed.

In order to achieve the above purpose, the present invention provides a sinker control device for a horizontal knitting machine, which is installed on a horizontal plate straddling a plurality of knitting needles to drive the sinkers pivotally arranged between the knitting needles in parallel. Perform a tilting motion. The sinker control device includes a base, a linkage device arranged on the base and opposite to it for a driving stroke, a first control cam and a second control cam pivotally arranged on the linkage device, and a A switching device connected to the interlocking device. The first control cam and the second control cam respectively include a sinking position for pushing the sinker to tilt and a return position for retracting the sinker when the linkage device performs the driving stroke. The switching device includes at least one connecting rod connected with the linkage device, a switching seat connected with the connecting rod, and a set set on the connecting rod and providing the switching seat with a resisting force in the direction of the horizontal plate. As for the elastic element, the side of the switch seat facing the horizontal plate is provided with a magnetic attraction portion magnetically attracted to the horizontal plate.

In one embodiment, the base includes at least one long hole through which the connecting rod passes to connect the linkage device and the switching base.

In one embodiment, the first control cam and the second control cam respectively have a first driving rod and a second driving rod, and the linkage device has a And guide the displacement of the first driving rod and the second driving rod to make the first control cam and the second control cam switch between the subsidence position and the return position to a first guide track and a second guide track.

In one embodiment, the first guide rail has a push section for pushing the first driving rod to make the first control cam be in the sinking position, and a push section for pulling back the first driving rod to make the first control cam be in the return position The recovery section of the , the moving section and the recovery section are not located on the same plane.

In one embodiment, the second guide track has a push section for pushing the second driving rod to make the second control cam be in the sinking position, and a push section for pulling back the second driving rod to make the second control cam be in the return position The recovery section of the , the moving section and the recovery section are not located on the same plane.

In one embodiment, the switching seat has a groove for accommodating the magnetic attraction part.

In one embodiment, the elastic element includes a first end abutting against the switching seat and a second end abutting against the linkage device.

In one embodiment, the magnetic attraction portion is a magnet.

In one embodiment, the elastic element is a spring set on the connecting rod.

In one embodiment, the base has at least one limiting portion that limits the driving stroke of the linkage device.

The characteristics of the sinker control device of the horizontal knitting machine of the present invention are:

1. Provide a resisting force of the switching seat towards the horizontal plate through an elastic element, so that the switching seat can maintain a proper fit relationship with the horizontal plate, and stabilize the moving state of the sinker control device relative to the horizontal plate .

2. Because the movement state of the sinker control device relative to the horizontal plate is stabilized, the cam is effectively controlled to switch between the sinking position and the return position.

Description of drawings

Fig. 1 is a partial side view of an embodiment of the present invention applied to a horizontal knitting machine;

Fig. 2 is a schematic diagram of the first appearance structure of an embodiment of the present invention;

Fig. 3 is a second appearance structure schematic diagram of an embodiment of the present invention;

Fig. 4 is a schematic diagram of an exploded structure of an embodiment of the present invention;

Fig. 5 is a schematic diagram of the movement of the switching device displaced to the level difference position of the horizontal plate in an embodiment of the present invention;

FIG. 6-1 and FIG. 6-2 are schematic diagrams of the structure and operation of an embodiment of the present invention.

Detailed ways

Relating to the detailed description and technical contents of the present invention, it is now described as follows with regard to the accompanying drawings:

Please refer to Fig. 1, which is a partial side view of an embodiment of the present invention applied to a horizontal knitting machine, as shown in the figure: the sinker control device 30 of the present invention is arranged on a horizontal knitting machine, It includes a needle bed 11 and a trolley (not shown) that moves laterally and reciprocally relative to the needle bed 11 . The needle bed 11 is provided with a plurality of knitting needles 21, and these knitting needles 21 are approximately perpendicular to the displacement direction of the trolley and parallel to each other, and each knitting needle 21 is pivotally provided with a sinker that can be forced to perform a tilting motion Each sinker 22 includes a pressing protrusion 221 and a control protrusion 222 . A horizontal plate 12 is straddled on the knitting needles 21 to fix the knitting needles 21 on the needle bed 11 .

Please refer to Fig. 2, Fig. 3 and Fig. 4, which are the first appearance structure diagram, the second appearance structure diagram and the structural decomposition diagram of an embodiment of the sinker control device of the horizontal knitting machine according to the present invention, as shown in the figure: The inventive horizontal knitting machine sinker control device 30 is arranged on the horizontal plate 13 and connected to the trolley (not shown). The sinker control device 30 includes a base 31, a link device 32 mounted on the base 31 and performing a driving stroke relative to the base 31, a first link pivoted on the link device 32 A control cam 33 , a second control cam 34 , and a switching device 35 connected to the interlocking device 32 . The base 31 has at least one limiting portion 311 , 311 a that limits the driving stroke of the linkage device 32 . When the linkage device 32 performs the driving stroke, the first control cam 33 and the second control cam 34 are respectively driven to have a sinking position and a return position. When in the sinking position, the first control cam 33 or the second control cam 34 pushes the control protrusion 222 of the inner sinker 22 to tilt the sinker 22 and let the depression protrusion of the sinker 22 221 carries out weaving thread forming loop. When in the return position, the first control cam 33 or the second control cam 34 pulls back the control protrusion 222 of the sinker 22, so that the sinker 22 is rotated back and the pressing protrusion of the sinker 22 is pushed back. 221 returns to the initial position. Please refer to FIG. 1 and FIG. 4 , the switching device 35 includes at least one connecting rod 351 connected to the linkage device 32 , and a switching seat 352 connected to the connecting rod 351 . In this embodiment, the connecting rod 351 is movably passed through the linkage device 32 , so that the switching device 32 can move relative to the linkage device 32 . Alternatively, the switching seat 352 is movably disposed on the connecting rod 351 , so that the connecting rod 351 can move on the connecting rod 351 . The base 31 includes at least one long hole 312 through which the connecting rod 351 passes to connect the linkage device 32 and the switching base 352 . A side of the switch base 352 facing the horizontal plate 13 is provided with a magnetic attraction portion 50 magnetically attracted to the horizontal plate 13 , and the magnetic attraction portion 50 can be a magnet. The switch base 352 has a groove 353 for accommodating the magnetic attraction portion 50 .

The first control cam 33 and the second control cam 34 have a first drive rod 331 and a second drive rod 341 respectively, and the linkage device 32 has a structure for the first drive rod 331 and the second drive rod 341 to pass through A first guiding track 321 and a second guiding track 322 are provided. The first guide track 321 and the second guide track 322 guide the displacement of the first drive rod 331 and the second drive rod 341 so that the first control cam 33 and the second control cam 34 are in the sinking position and the return position switch between them. The first guide rail 321 has a push section 323 that pushes the first driving rod 331 to make the first control cam 33 in the sinking position, and pulls back the first driving rod 331 to make the first control cam 33 in the recovery position The recovery section 324, the pushing section 323 and the recovery section 324 are not located on the same plane. The second guide track 322 has a pushing section 323a for pushing the second driving rod 341 to make the second control cam 34 be in the sinking position, and a pull back the second driving rod 341 to make the second control cam 34 be in the recovery position The recovery section 324a, the pushing section 323a and the recovery section 324a are not located on the same plane.

In the present invention, the switching device 35 further includes an elastic element 40 set on the connecting rod 351 . The elastic element 40 includes a first end 41 abutting against the switching seat 352 and a second end 42 abutting against the linkage device 32 . In this embodiment, the elastic element 40 is a spring. When the switching device 35 is laterally displaced relative to the transverse plate 13 to a position of a difference, the position of the difference means a position where there is a vertical drop on a plane, as shown in FIG. 5 , because the first end 41 of the elastic element 40 and the second end 42 respectively abut against the switching seat 352 and the linkage device 32, the elastic element 40 provides the switching seat 352 with a resisting force toward the direction of the horizontal plate 13, so that the switching seat 352 and the horizontal plate 13 The plates 13 maintain a proper fit relationship, and the switching seat 352 cannot be driven due to too large a distance, or the switching seat 352 cannot be laterally displaced due to mutual extrusion between the switching seat 352 and the horizontal plate 13 .

Please refer to Figure 6-1 and Figure 6-2, which are schematic diagrams of the structure and operation of an embodiment of the present invention, as shown in the figure: in the initial state, as shown in Figure 6-1, the switch seat 352 The magnetic attraction part 50 and the horizontal plate 13 are magnetically attracted to each other, so that the sinker control device 30 is relatively fixed above the horizontal plate 13, and the first driving rod 331 of the first control cam 33 is located on the first guide track The recovery section 324 of 321 makes the first control cam 33 in the return position, and the second driving drive 341 of the second control cam 34 is located in the push section 323a of the second guide track 322, so that the second control cam 34 is in the Settlement position.

When the sinker control device 30 moves in the R direction relative to the horizontal plate 13, at the initial stage of the movement, the magnetic attraction portion 50 on the switching seat 352 is magnetically attracted to the horizontal plate 13, and only the base 31 And the first control cam 33 and the second control cam 34 on it move in the R direction, and the first driving rod 331 of the first control cam 33 enters the push section 323 from the recovery section 324 of the first guide track 321 , so that the first control cam 33 changes from the return position to the sinking position, and the second drive rod 341 of the second control cam 34 enters the recovery section 324a from the push section 323a of the second guide track 322, so that the The second control cam 34 changes from the settling position to the return position, as shown in Fig. 6-2. When continuing to move, the first driving rod 331 and the second driving rod 341 drive the linkage device 32 and the switching device 35 arranged on the linkage device 32, so that the linkage device 32 and the switching device 35 are opposite to each other. The base 31 performs a driving stroke until the linkage device 32 abuts against the restricting portion 311 .

Afterwards, if the sinker control device 30 intends to move in the L direction relative to the horizontal plate 13, at the initial stage of the movement, the magnetic attraction portion 50 on the switching seat 352 is also magnetically attracted to the horizontal plate 13, and only The base 31 and the first control cam 33 and the second control cam 34 thereon move in the L direction. The first driving rod 331 of the first control cam 33 enters the recovery section 324 by the push section 323 of the first guide rail 321, so that the first control cam 33 is changed from the sinking position to the return position, and the second The second drive rod 341 of the control cam 34 enters the push section 323a from the recovery section 324a of the second guide rail 322, so that the second control cam 34 changes from the return position to the sinking position, that is, returns to Fig. 6- 1 shows the state. When continuing to move, the first driving rod 331 and the second driving rod 341 drive the linkage device 32 and the switching device 35 arranged on the linkage device 32, so that the linkage device 32 and the switching device 35 are opposite to each other. The base 31 performs a driving stroke in the opposite direction to the above, until the linkage device 32 abuts against the restricting portion 311a.

To sum up, due to the sinker control device of the horizontal knitting machine of the present invention, the switching seat can maintain a proper fit relationship with the horizontal plate, stabilize the movement state of the sinker control device relative to the horizontal plate, and effectively control the cam in the Toggle between the sinking position and the recovery position. In addition, the interlocking device of the present invention is simpler in structure than the traditional driving cam, which effectively reduces the difficulty of assembly and production cost, and is beneficial to the manufacture of flat knitting machines.

The present invention has been described in detail above, but the above description is only a preferred embodiment of the present invention, and should not limit the implementation scope of the present invention. That is, all equivalent changes and modifications made according to the scope of the claims of the present invention should still fall within the scope of the patent of the present invention.

Claims (10)

1. flat knitting machine device for controlling sinker is arranged at one and is located on the transverse slat of a plurality of knitting needles with driving and is hubbed at the sinker that is arranged parallel to each other between the described knitting needle motion of verting, and it is characterized in that described device for controlling sinker includes:

One pedestal;

One linkage is arranged on the described pedestal, carries out one with respect to described pedestal and drives stroke;

One first control cam and one second control cam, be hubbed on the described linkage, include when described linkage and carry out described driving stroke and promote respectively the sedimentation location that described sinker verts and regain one of described sinker to reply the position; And

One switching device shifter, the switching seat and one that the connecting rod, that includes the described linkage of at least one connection is connected in described connecting rod is sheathed on described connecting rod and offers the described seat one that switches toward the flexible member that supports the power of pulling of described transverse slat direction, and described switching seat is provided with a magnetic section of inhaling with described transverse slat Magnetic Phase towards a side of described transverse slat.

2. flat knitting machine device for controlling sinker according to claim 1 is characterized in that, described pedestal includes the described connecting rod of at least one confession and wears to connect described linkage and the described slotted hole that switches seat.

3. flat knitting machine device for controlling sinker according to claim 1, it is characterized in that, described the first control cam and described the second control cam have respectively one first drive rod and one second drive rod, and described linkage has one first guide rail and one second guide rail that supplies described the first drive rod and described the second drive rod to wear and guide described the first drive rod and described the second drive rod displacement that described the first control cam and described the second control cam are switched between described sedimentation location and described answer position.

4. flat knitting machine device for controlling sinker according to claim 3, it is characterized in that, described the first guide rail has one to be promoted passing section and that described the first drive rod makes described the first control cam be in sedimentation location and retracts described the first drive rod and make described the first control cam be in the exhausting section of replying the position, and described passing section and described exhausting section are not positioned at same plane.

5. flat knitting machine device for controlling sinker according to claim 3, it is characterized in that, described the second guide rail has one to be promoted passing section and that described the second drive rod makes described the second control cam be in sedimentation location and retracts described the second drive rod and make described the second control cam be in the exhausting section of replying the position, and described passing section and described exhausting section are not positioned at same plane.

6. flat knitting machine device for controlling sinker according to claim 1 is characterized in that, the described seat that switches has a groove that is installed with described magnetic section.

7. flat knitting machine device for controlling sinker according to claim 1 is characterized in that, described flexible member includes the first end that is connected to described switching seat and the second end that is connected to described linkage.

8. flat knitting machine device for controlling sinker according to claim 1 is characterized in that, described magnetic section is a magnet.

9. flat knitting machine device for controlling sinker according to claim 1 is characterized in that, described flexible member is one to be sheathed on the spring of described connecting rod.

10. flat knitting machine device for controlling sinker according to claim 1 is characterized in that, described pedestal has the restriction section that the described linkage of at least one restriction carries out described driving stroke.

Images