Brush presser foot device of computerized flat knitting machine

Abstract

The utility model relates to the field of flat knitting machines, in particular to a computerized flat knitting machine brush presser foot device which comprises a brush, and the brush swings through a brush control mechanism. The two sides of the brush are respectively provided with a presser foot rail, the presser foot rails correspond to a first presser foot and a second presser foot respectively, the first presser foot and the second presser foot are in linkage with the first driving device through presser foot transmission mechanisms respectively, and when a machine head of the flat knitting machine moves back and forth, the first presser foot and the second presser foot swing along the presser foot rails under driving of the first driving device. After the scheme is adopted, the working efficiency of the presser foot and the brush during operation can be improved, and interference between the presser foot and the brush is avoided.

Description

Technical Field

[0001] The utility model relates to the field of flat knitting machines, in particular to a brush presser foot device of a computerized flat knitting machine. Background Art

[0002] When the computerized flat knitting machine is knitting, the needle tongue must be fully opened to ensure smooth knitting. The opening of the needle tongue requires a brush, which is fixed to the machine head and moves with the machine head to brush the needle tongue open. At the same time, during the knitting process, debris will accumulate at the hole of the flat knitting machine, which may easily cause machine failure. The brush can also remove these debris in the process of opening the needle tongue.

[0003] The brush and presser foot device are generally controlled by a single motor to work together. In order to simultaneously realize the functions of opening the needle tongue and pressing the coil, the prior art is achieved by designing the brush device and the presser foot device on the same device, such as "CN208472295U", "CN213772415U", "CN215481591U" and so on.

[0004] However, the above devices all use a single motor to control a presser foot and a brush to work (current computerized flat knitting machines generally have two needle beds, each needle bed corresponds to a machine head, and one machine head corresponds to a brush and presser foot), and the machine head moves back and forth on the needle bed, which can be divided into two strokes: "left" and "right". Therefore, the above presser foot must be set on the front and back "opposite" sides of the machine head. During the back and forth movement of the machine head, there will be a certain interference between the two on the opposite sides. When one side of the presser foot fails, the other side of the presser foot enters the opposite side and collides with it, causing a mechanical accident. In addition, the above devices all use a motor shared by the presser foot and the brush. When one side of the mechanical parts loosens and fails, the other side will also be interfered and cannot accurately move to a safe position, causing damage to the knitting needles and other losses.

[0005] Therefore, the inventor conducted further research on this and developed a brush presser foot device for a computerized flat knitting machine, from which the present invention was created. Utility Model Content

[0006] The utility model aims to provide a brush presser foot device for a computerized flat knitting machine, which can make the two presser feet move relative to each other and the brush and the presser foot do not interfere with each other during the movement by arranging two presser feet to cooperate with the brush "left movement" and "right movement" respectively.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A brush presser foot device for a computerized flat knitting machine comprises a brush, which is swung by a brush control mechanism; a presser foot track is arranged on each side of the brush, the presser foot tracks correspond to a first presser foot and a second presser foot respectively, the first presser foot and the second presser foot are respectively linked by a presser foot transmission mechanism and a first driving device, and when the head of the flat knitting machine moves back and forth, the first presser foot and the second presser foot swing along the presser foot track driven by the first driving device.

[0009] When the machine head moves to the right, the first presser foot performs the pressing ring work, when the machine head moves to the left, the second presser foot performs the pressing ring work, when the first presser foot and the second presser foot exit or switch work, the brush exits work; in the zero position state, when the machine head is stationary, the first presser foot and the second presser foot both exit the working state, and the brush enters the working position.

[0010] Furthermore, both sides of the first driving device are linked with respective presser foot cams, and the presser foot cams are linked with presser foot gears through presser foot transmission arms, and the rotation of the presser foot gears drives the respective presser feet to swing.

[0011] The rotation position of the presser foot cam determines whether the presser foot participates in the press ring work.

[0012] Furthermore, the presser foot track is arranged in the presser foot control arm, and the presser foot control arm is also provided with a roller, and the roller is restricted to move in the presser foot track.

[0013] The presser foot track is used to guide the movement trajectory of the presser foot.

[0014] Furthermore, the presser foot gear is linked to the gear shaft, the gear shaft is connected to the joint arm, and the joint arm is pivotally connected to the respective presser feet.

[0015] The presser foot gear drives the gear shaft to rotate, the gear shaft drives the joint arm to swing, and the joint arm drives the presser foot.

[0016] Furthermore, the brush control mechanism includes a second driving device, which drives the brush cam, and the brush cam is linked to the brush transmission arm.

[0017] Furthermore, a sensor is arranged between the brush cam and the second driving device, and a magnet is arranged on the brush cam.

[0018] The sensor can sense and confirm whether the brush cam reaches the corresponding zero position or working position.

[0019] Furthermore, the brush cam is provided with a cam track, one end of the brush transmission arm moves in the cam track, and the other end of the brush transmission arm is linked with the brush clamping plate, and the brush is arranged in the brush clamping plate.

[0020] Furthermore, the brush transmission arm is an L-shaped structure, a pin is provided in the middle of the brush transmission arm, and the brush transmission arm swings with the pin as a pivot point.

[0021] Furthermore, the presser foot track is an arc-shaped groove structure.

[0022] After adopting the above scheme, the utility model has the following advantages compared with the prior art:

[0023] The presser foot device uses separate motors to control the presser foot and brush, which do not interfere with each other during movement, and can quickly complete the coordinated action of the presser foot and brush;

[0024] In addition, this device is installed on the front head of the machine, and two presser feet are set on the same side. When in use, they move up and down, and can be switched quickly;

[0025] The double presser feet on the same side of the device can better enable the presser foot to complete the function of pressing the coil and enable the brush to complete the function of opening the needle tongue. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the utility model;

[0027] Figure 2 is a schematic diagram of the brush control mechanism;

[0028] Figure 3 yes Figure 2 Side view of

[0029] Figure 4 is a schematic diagram of the presser foot control mechanism;

[0030] Figure 5 This is a schematic diagram at the "zero position";

[0031] Figure 6 yes Figure 5 Rear view of

[0032] Figure 7 This is a schematic diagram of "driving right";

[0033] Figure 8 yes Figure 7 Rear view of

[0034] Fig. 9 This is a schematic diagram for "traveling left";

[0035] Fig.10 yes Fig. 9 Rear view of

[0036] Description of symbols

[0037] Brush 1, second driving device 11, brush cam 12, cam track 13,

[0038] Brush transmission arm 14, brush clamping plate 15, pin 16, sensor 17, magnet 18;

[0039] A first presser foot 21, a second presser foot 22, a first driving device 23, a presser foot cam 24,

[0040] Presser foot transmission arm 25, presser foot gear 26, joint arm 27, presser foot control arm 28,

[0041] Presser foot rail 29. DETAILED DESCRIPTION

[0042] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0043] like Figure 1 As shown, a brush presser foot device of a computerized flat knitting machine includes a brush control mechanism and a presser foot control mechanism, which respectively control the operation of the brush 1 and the presser foot.

[0044] The brush 1 is driven by a second driving device 11. Figure 2 , Figure 3 As shown, the second driving device 11 is first connected to the brush cam 12, and the brush cam 12 is provided with a cam track 13; a rolling member (such as a bearing, a roller, etc.) is provided at one end of the brush transmission arm 14, and the rolling member moves along the track of the cam track 13, and a brush clamping plate 15 is provided at the other end of the brush transmission arm 14, and the brush 1 is arranged in the brush clamping plate 15; the brush transmission arm 14 is an L-shaped structure, and a pin shaft 16 is provided in the middle thereof. Under the drive of the second driving device 11, the brush transmission arm 14 swings with the pin shaft 16 as a pivot point, so that the brush 1 is tilted up to exit work, or pressed down for normal use.

[0045] Meanwhile, a sensor 17 is arranged between the brush cam 12 and the second driving device 11 . A magnet 18 is arranged on the brush cam 12 . The sensor 17 determines the state of the brush 1 by sensing the magnet 18 .

[0046] like Figure 4 As shown, the first presser foot 21 and the second presser foot 22 are both driven by the first driving device 23. Specifically, presser foot cams 24 are arranged on both sides of the first driving device 23. The presser foot cams 24 are linked with respective presser foot transmission arms 25. One end of the presser foot transmission arm 25 is provided with saw teeth. The presser foot transmission arm 25 is engaged with respective presser foot gears 26 through the saw teeth.

[0047] Each presser foot gear 26 is linked to a respective gear shaft, the gear shaft is connected to a joint arm 27, and the joint arm 27 is pivotally connected to a respective presser foot.

[0048] The presser foot control arms 28 on both sides of the brush 1 are each provided with a presser foot track 29, which is a curved strip groove. The first presser foot 21 or the second presser foot 22 is also provided with a rolling element (such as a bearing, a roller, etc.), and the rolling element is restricted by the presser foot control arm 28 to move in the presser foot track 29.

[0049] like Figure 5 , 6 As shown, the first presser foot 21 and the second presser foot 22 do not participate in the downward pressing, and the high and low positions are separated, which is the "zero position" state; Figure 7 , 8 As shown, the first presser foot 21 is pressed down, and the machine head moves to the right; Fig. 9 , 10 As shown, the second presser foot 22 is pressed down, the machine head moves to the left, and the sensor 17 senses the magnetic steel 18, completing a cycle.

[0050] Compared with the prior art, which all uses a single motor to control the presser foot and the brush 1 in linkage, if one of the presser foot and the brush 1 has a mechanical jam, they will interfere with each other. The presser foot device uses separate motors to control the presser foot and the brush 1 separately, so they do not interfere with each other during movement, and the coordinated action of the presser foot and the brush 1 can be completed quickly.

[0051] The prior art all has one presser foot on each of the front and rear opposite sides, which is prone to interference during switching, and when switching, it is necessary to wait for one side of the presser foot to be in place before the opposite side can work, and fast and efficient switching cannot be achieved. The device is provided with two presser feet on the same side, which move up and down during use, and can be switched quickly, so that the presser foot can better complete the function of pressing the coil and the brush 1 can complete the function of opening the needle tongue.

[0052] The above are only specific embodiments of the present utility model. At the same time, all words such as "upper, lower, left, right, middle" involved in the present utility model are for reference only and are not absolutely limiting. Any non-substantial changes made using the present utility model shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A brush presser foot device for a computerized flat knitting machine, characterized in that: It includes a brush, which is swung by a brush control mechanism; a presser foot track is arranged on each side of the brush, the presser foot tracks correspond to a first presser foot and a second presser foot respectively, the first presser foot and the second presser foot are respectively linked to a first drive device through a presser foot transmission mechanism, and when the head of the flat knitting machine moves back and forth, the first presser foot and the second presser foot swing along the presser foot track driven by the first drive device.

2. A brush presser foot device for a computerized flat knitting machine according to claim 1, characterized in that: Both sides of the first driving device are linked with respective presser foot cams, and the presser foot cams are linked with presser foot gears through presser foot transmission arms, and the rotation of the presser foot gears drives the respective presser feet to swing.

3. A brush presser foot device for a computerized flat knitting machine according to claim 1, characterized in that: The presser foot track is arranged in the presser foot control arm, and the presser foot control arm is also provided with a roller, and the roller is restricted to move in the presser foot track.

4. A brush presser foot device for a computerized flat knitting machine according to claim 1, characterized in that: The presser foot gear is linked to the gear shaft, the gear shaft is connected to the joint arm, and the joint arm is pivotally connected to the respective presser feet.

5. The brush presser foot device of a computerized flat knitting machine according to claim 1, characterized in that: The brush control mechanism comprises a second driving device, which drives a brush cam, and the brush cam is linked with the brush transmission arm.

6. A brush presser foot device for a computerized flat knitting machine according to claim 1, characterized in that: A sensor is arranged between the brush cam and the second driving device, and a magnetic steel is arranged on the brush cam.

7. A brush presser foot device for a computerized flat knitting machine according to claim 1, characterized in that: The brush cam is provided with a cam track, one end of the brush transmission arm moves in the cam track, the other end of the brush transmission arm is linked with the brush clamping plate, and the brush is arranged in the brush clamping plate.

8. The brush presser foot device of a computerized flat knitting machine according to claim 1, characterized in that: The brush transmission arm is an L-shaped structure, a pin shaft is arranged in the middle of the brush transmission arm, and the brush transmission arm swings with the pin shaft as a pivot point.

9. The brush presser foot device of a computerized flat knitting machine according to claim 1, characterized in that: The presser foot track is an arc-shaped groove structure.

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