Liftable brush sinker device for computerized flat knitting machine

Abstract

The utility model discloses a liftable brush sinker device for a computerized flat knitting machine, which comprises a base plate provided with a guide groove A extending along the length direction; the driving mechanism comprises a control panel and a power assembly, the control panel is arranged in the guide groove A in a sliding mode, and the power assembly is in driving connection with the control panel so as to drive the control panel to slide in the guide groove A in a reciprocating mode; the lifting sliding block is connected with the driving mechanism, a guide groove B is formed in the vertical plane of the lifting sliding block, and the guide groove B synchronously fluctuates along with entering and exiting of the needle head of the knitting needle; the brush mechanism is arranged in the guide groove B in a sliding mode, and a lifting sliding block moving in a reciprocating mode drives the brush mechanism to synchronously ascend and descend along with fluctuation of the guide groove B; and the triangular mechanism is arranged on the base plate and is in driving connection with the control plate so as to drive the sinker to hold and descend corresponding to the looped knitting needle and hold the yarn. According to the scheme, driving connection of the triangular mechanism, the brush mechanism and the driving mechanism is achieved through the lifting sliding block, and reciprocating motion of the triangular mechanism under a single power source and lifting of the brush mechanism away from a needle head are achieved.

Description

Technical Field

[0001] The utility model relates to a computerized flat knitting machine, in particular to a brush lift device for the computerized flat knitting machine. Background Art

[0002] In computerized flat knitting machines, the brush sinker device is mainly used to control the movement of the sinker to assist in the weaving of the coils. Specifically, the brush sinker device can accurately control the movement of the sinker through the contact between the bristles and the sinker, so that it can rotate according to the preset program, thereby ensuring the smooth weaving of the coils.

[0003] The existing contradiction is that the brush part in the current brush sheath does not have the lifting function, and in high-density computerized flat knitting machines, in order to increase the density of needle arrangement on the needle plate per unit length, the thickness of the needles is often reduced, which reduces the strength of the needles. When the needles are higher than the needles, if the brush part on the brush sheath does not avoid it, the dense bristle part of the brush will come into contact with the needle heads, which will easily cause the needle heads to be deflected due to force, and problems such as needle collision and needle twisting often occur, which greatly affects the stability of the computerized flat knitting machine.

[0004] For this reason, there is an urgent need for a brush signal device that can avoid the needle head of the pointer when the computer flat knitting machine knits the needle higher than the needle. Utility Model Content

[0005] The utility model aims to provide a brush lift device for a computerized flat knitting machine, so as to avoid the needle head of the knitting needle when the knitting needle is higher than the needle, thereby ensuring the normal operation of the computerized flat knitting machine.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A brush sling device for a computerized flat knitting machine comprising:

[0008] The base plate is provided with a guide groove A extending along the length direction;

[0009] The driving mechanism comprises a control panel and a power assembly, wherein the control panel is slidably arranged in the guide groove A, and the power assembly is drivingly connected to the control panel to drive the control panel to slide back and forth in the guide groove A;

[0010] A lifting slider is connected to the driving mechanism and has a guide groove B on the vertical plane, and the guide groove B rises and falls synchronously with the needle head of the knitting needle.

[0011] The brush mechanism is connected to the lifting slider and moves up and down synchronously with the guide groove B under the drive of the reciprocating lifting slider;

[0012] The triangular mechanism is arranged on the base plate and is drivingly connected with the control board to drive the sinker to swing according to the state of the knitting needle when forming a loop.

[0013] Preferably, the substrates are also provided with pressure plates, respectively, and the pressure plates are pressed smoothly against the surface of the control board.

[0014] Preferably, the driving mechanism includes a connecting seat, which is mounted on a base plate, on which a motor is mounted, and an output shaft of the motor passes through the connecting seat and is coaxially connected to a gear. A rack is also arranged above the base plate, the rack is meshed with the gear, and the rack is connected to the control panel.

[0015] Preferably, the brush mechanism includes a lifting assembly and a brush assembly, the lifting assembly includes a slide seat fixedly mounted on a base plate, a slider A capable of vertical sliding is provided in the slide seat, a guide rod A is provided on the slider A, and the guide rod A passes through the slide seat and then slides into the guide groove B; the brush assembly is connected to the slider A so as to rise and fall synchronously with the slider A.

[0016] Preferably, the triangle mechanism includes a fixed triangle and a movable triangle group, the fixed triangle is installed at the lower part of the base plate, and the movable triangle group is drivingly connected to the control board to form a guide groove for controlling the swing of the sedimentation plate with the fixed triangle under the drive of the control board.

[0017] Preferably, two vertically extending guide grooves C are provided on the base plate, and two guide grooves D are symmetrically provided on the control plate. The trajectory of the guide groove D corresponds to the lifting and lowering settings of the knitting needles. The movable triangle group includes two sliders B respectively slidably arranged in the guide grooves C, one side of the slider B is connected to a guide rod B slidably inserted in the guide groove D, and the other side of the slider B is connected to the movable triangle A. The movable triangle reciprocates and rises and falls in the guide groove C to form a guide groove for guiding the lifting plate to swing when it approaches the fixed triangle.

[0018] Preferably, a laterally extending guide groove E is provided on the base plate, and the movable triangle group includes a slider C, one side of the slider C is fixedly connected to the control board, and the other side of the slider C is fixedly connected to the movable triangle B, and the movable triangle B and the corresponding fixed triangle below form a guide groove for guiding the swing of the lifting plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. In this solution, the horizontal reciprocating motion of the control board is converted into the vertical motion of the brush mechanism through the guidance of the guide groove B in the lifting slider, so that the brush mechanism can avoid according to the lifting and lowering state of the knitting needles during the knitting process, avoiding the brush from brushing on the needle heads, and ensuring that the knitting needles in computerized flat knitting machines, especially high-density flat knitting machines, are brushed by the brushes, resulting in needle head deflection. It should be noted that in this solution, through the transfer bearing of the lifting block, the synchronous drive of the sinker swing drive and the brush lifting and lowering is realized under the condition of one power source, saving the driving space required for the brush mechanism lifting and lowering.

[0021] 2. Use a pressure plate to ensure the stability of the control board when it reciprocates in the guide groove A.

[0022] 3. The driving mechanism adopts the matching structure of motor, gear and rack to realize the reciprocating drive of the control panel, which has the advantages of high transmission efficiency and stability, and is very suitable for the working state of rapid switching of needle out and needle out when the computer flat knitting machine is running.

[0023] 4. The lifting assembly effectively and directly converts the guidance of the lifting slider into a lifting action adapted to the in and out movement of the knitting needles, thereby avoiding interference of the brush assembly with the extended knitting needles.

[0024] 5. This solution adopts two driving modes of movable triangles to form guide grooves for guiding the swing of the sinker, thereby realizing a flexible combination of the triangle mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of Example 1;

[0026] Figure 2 is a schematic diagram of the structure of Embodiment 1 from another perspective;

[0027] Figure 3 is an exploded view of the triangular mechanism in Example 1;

[0028] Figure 4 is an exploded view of the brush mechanism in Example 1;

[0029] Figure 5 This is a synchronous state diagram when the brush mechanism and the triangle mechanism in Example 1 run to position 1;

[0030] Figure 6 This is a synchronous state diagram when the brush mechanism and the triangle mechanism in Example 1 run to position 2;

[0031] Figure 7 This is a synchronous state diagram when the brush mechanism and the triangle mechanism in Example 1 run to position three;

[0032] Figure 8 is an exploded view of the triangular mechanism in Example 2;

[0033] Fig. 9 This is a synchronous state diagram of the brush mechanism and the triangle mechanism in Example 2 when they run to position 1;

[0034] Fig.10 This is a synchronous state diagram when the brush mechanism and the triangle mechanism in Example 2 run to position 2;

[0035] Fig.11 This is a synchronous state diagram of the brush mechanism and the triangle mechanism in Example 2 when they run to position three.

[0036] Reference numerals:

[0037] 1. Base plate 11. Guide groove A 12. Guide groove C 13. Guide groove E;

[0038] 2. Driving mechanism 21. Power assembly 211. Motor 212. Gear 213. Connecting seat 214. Rack 22. Control board 221. Guide groove D;

[0039] 3. Triangle mechanism 31. Fixed triangle 32. Movable triangle group 321. Slider B 322. Guide rod B 323. Movable triangle A 324. Slider C 325. Movable triangle B;

[0040] 4. Brush mechanism 41. Lifting assembly 411. Sliding seat 412. Sliding block A 413. Guide rod A 42. Brush assembly 421. Connecting block 422. Brush;

[0041] 5. Lifting slider 51. Guide groove B;

[0042] 6. Press plate. DETAILED DESCRIPTION

[0043] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0046] like Figures 1 to 7 The illustrated embodiment of a liftable brush support device for a computer flat knitting machine comprises a base plate 1 mounted on the machine head of the computer flat knitting machine, wherein the base plate is provided with a guide groove A11 extending along the length direction of the base plate.

[0047] like Figure 1 As shown, a plurality of equally spaced drive mechanisms 2 are installed on the base plate, and the drive mechanism includes a control board 22 and a group of power components 21. The control board is slidably arranged in the guide groove A, and the power component is fixed on the base plate 1 and is connected to the control board 21. It should be noted that in order to improve the stability of the control board in the guide groove A, preferably, a plurality of pressing plates 6 are also installed on the base plate, and these pressing plates are pressed against the surface of the control board smoothly at the same time to prevent the control board 22 from falling out of the guide groove A when sliding.

[0048] In detail, the power assembly 21 includes a connection seat 213 fixedly mounted on the base plate 1, and the connection seat is suspended above the base plate. A motor 211 is mounted on the connection seat 213, and the motor can realize forward and reverse rotation. The output shaft of the motor extends toward the base plate after passing through the connection seat, and a gear 212 is coaxially mounted at the end of the motor 211. At the same time, a rack 214 is arranged in parallel above the control board, and the rack is fixedly connected to the control board by bolts, and the rack is meshed with the gear at the same time, so that when the motor rotates forward and reversely, it can drive the control board 22 connected thereto to slide back and forth in the guide groove A. It should be noted that there can be multiple structures that drive the control board to realize reciprocating motion, and the motor gear drive has the advantages of high transmission accuracy and fast response, which is very suitable for the situation where the needle state of the computer flat knitting machine is quickly switched during operation.

[0049] It should also be noted that if Figure 3 As shown, a set of triangular mechanisms 3 are arranged on the side of the base plate facing away from the control plate. Driven by the driving mechanism, the triangular mechanism realizes reciprocating motion synchronized with the forward and backward knitting, and the reciprocating motion enables the triangular mechanism to form a guide groove that tends to cause the sedimentation plate to flip down when the yarn is looped and to hold the yarn.

[0050] Specifically, Figures 5 to 7 As shown, the cam mechanism 3 includes a fixed cam 31 mounted on the base plate 1 and a movable cam group 32 connected to the control board. Driven by the reciprocating control board, the movable cam group repeatedly moves closer to or away from the fixed cam, and forms a guide groove to guide the sinker to lift when approaching the fixed cam.

[0051] Detailed, such as Figure 1 , Figure 3 As shown, the movable cam group includes two symmetrically distributed sliders B321. A guide rod B is installed on the side of each slider B facing the control board, and a sliding connection with the control board is achieved through the guide rod B322. A movable cam A323 is connected to the other side of the slider B facing away from the control board 5. The movable cam A can move up and down close to or away from the fixed cam 31 under the drive of the control board, and forms a guide groove when it approaches the fixed cam. It should be noted that in order to achieve the above control, as shown in FIG. Figure 2 , Figure 3As shown, two guide grooves C12 are synchronously opened on the substrate 1. The two guide grooves C extend vertically along the width direction of the substrate. The slider B is slidably arranged in the guide groove C so that after being driven by the control board, it can be constrained in the vertical lifting in the guide groove C. In order to convert the horizontal reciprocating motion of the control board into the vertical reciprocating motion of the movable triangle, two guide grooves D221 are also opened on the control board 22. The guide groove D is in the shape of "z" and the two guide grooves D are symmetrically arranged to form a roughly "eight" shape. The guide rod A in the movable triangle group 32 is slidably inserted in the guide groove D so that when the control board slides horizontally, it can be lifted and lowered following the trajectory of the guide groove D. It should be noted that the guide rod A in this scheme is preferably a screw shaft, that is, when one end of the guide rod A is connected to the slider B, the end with the big head thereof is smoothly abutted against the surface of the control board to prevent the guide rod A from coming out of the guide groove D.

[0052] In this solution, as the knitting needles are extended to form a loop, the movable triangle A323 in the area is also driven by the guide groove D to lower close to the fixed triangle 31, which can then drive the sinker in the needle outlet area to lift and swing and hold the yarn.

[0053] In order to realize the synchronous avoidance of the brush mechanism 4 when the knitting needle is extended, and share a power source with the triangular mechanism to save the occupied space. This scheme also includes a lifting slider 5, which is connected to the control board by bolts and connecting blocks. The brush mechanism 4 is connected to the lifting slider by driving, and can be driven by the reciprocating control board to follow the advancing and retreating knitting needles to implement synchronous lifting and lowering. Specifically, the lifting and lowering of the brush is opposite to the advancing and retreating of the knitting needles in the looping process, that is, when the knitting needles advance (higher than the needles), the brush mechanism rises to avoid the extended knitting needle heads, and when the knitting needles retreat, the brush mechanism descends to clean the sinkers.

[0054] It should be noted that if Figure 4 As shown, the lifting slider 5 is fixedly connected to the control panel through bolts and corresponding connecting parts. At the same time, a guide groove B51 is also provided on the control panel.

[0055] The undulating trajectory of the guide groove B is in the shape of a normal distribution curve, and the brush mechanism 4 has a guide rod A slidably inserted in the guide groove B, so that when the lifting slider 5 follows the control board to make horizontal reciprocating motion, it is guided by the guide groove B to perform synchronous lifting activities.

[0056] That is, when the guide rod A rises in the guide rail B, the brush in the brush mechanism also rises and avoids the needle head of the knitting needle that extends out during the looping. When the guide rod A descends under the guidance of the guide rail B, the brush in the brush assembly is synchronously driven to descend to clean the fluff and dust on the sedimentation plate.

[0057] It should be noted that, in this embodiment, the brush mechanism 4 is specifically composed of two parts, namely, a brush assembly 42 for brushing and cleaning, and a lifting assembly 41 which is drivingly connected to the lifting slider 5 and drives the brush assembly to rise and fall. Figure 4 As shown, the lifting assembly includes a slide 411 fixedly mounted on a base plate, the slide is provided with a vertically extending groove, in which a vertically sliding slider A412 is slidably mounted. A guide rod A is mounted on the side of the slider facing the lifting slider, and the free end of the guide rod A is slidably inserted in the guide groove D, so that when the lifting slider and the lifting assembly move relative to each other, the guide rod A can slide in the guide groove D, thereby guiding the slider A to slide vertically on the slide. The brush assembly 42 includes a connecting block 421, which is fixed to the slider A by bolts and extends outward to the outside of the needle plate. At the same time, a brush 422 is connected to the connecting block, which brushes the sinker when descending and avoids the extended needle heads when rising, so as to prevent the needles, especially the high-density needles, from being distorted by the impact of the brush.

[0058] Working principle: When the knitting needles on the needle plate are driven forward and backward by the triangular component in the machine head, the motor in the driving mechanism of this scheme also rotates synchronously. Through the forward and reverse rotation of the motor, the control plate in the base plate is driven to slide back and forth horizontally in the guide groove A, thereby driving the triangular mechanism and the brush mechanism to achieve synchronous action. It should be noted that during the sliding process, the corresponding relationship between the position of the control plate and the movable triangle A in the triangular mechanism and the lifting height of the brush in the brush mechanism is as follows: Figures 5 to 7 As shown. In detail, Figure 5 As shown, the knitting needle at the position of the brush is in the back loop state. At this time, the knitting needle is in the needle groove, and the sinker presses the yarn. At this time, the control panel drives the brush to the lowered position through the lifting slider to brush the sinker. Then enter Figure 6 In the state shown, the knitting needle at the position of the brush is in a looped state, and the head extends out of the needle groove. For this reason, the control board drives the brush to rise through the guidance of the lifting slider to avoid contact between the brush and the needle head. Figure 7 In the state shown, the knitting needle is in the pulling state, the knitting needle re-enters the needle groove, and the brush then descends again under the guidance of the guide groove D to brush the sinker. It should be noted that as the knitting needle state changes back and forth, the brush mechanism and the triangle mechanism are driven back and forth by the driving mechanism to make adaptive reciprocating changes following the extension state of the knitting needle. Example

[0059] The difference between this embodiment and the first embodiment is that the movable cam group in this solution realizes the movement of the guide groove following the sinker to be lifted through horizontal reciprocating movement.

[0060] It should be noted that, in this solution, the horizontal transverse movement of the movable cam group is used to achieve the synchronous lifting of the sinker and the brush when the knitting needle is ejected.

[0061] Specifically, Figure 8 As shown, the cam mechanism 3 includes a fixed cam 31 and a movable cam assembly 32. The movable cam assembly includes a slider C, one side of which is fixedly connected to the control panel by bolts, and the other side is fixedly connected to the movable cam B. When the movable cam B is horizontally reciprocating, its part opposite to the fixed cam forms a guide groove for applying pressure to the heel of the sinker.

[0062] It should be noted that, in order to maintain the sliding stability of the movable triangle, a guide groove E extending along the length direction of the substrate is opened on the substrate 1, and the slider C is slidably arranged in the guide groove with upper and lower constraints.

[0063] Working principle: When the knitting needles on the needle plate are driven forward and backward by the triangular component in the machine head, the motor in the driving mechanism of this scheme also rotates synchronously. Through the forward and reverse rotation of the motor, the control plate in the base plate is driven to slide back and forth horizontally in the guide groove A, thereby driving the triangular mechanism and the brush mechanism to achieve synchronous action. It should be noted that during the sliding process, the corresponding relationship between the position of the control plate and the movable triangle A in the triangular mechanism and the lifting height of the brush in the brush mechanism is as follows: Figures 9-11 As shown. In detail, Fig. 9 As shown, the knitting needle at the brush position is in the back loop state. At this time, the knitting needle is in the needle groove, and the sinker presses the yarn. At this time, the control panel drives the brush to the lower position through the lifting slider to brush the sinker. At the same time, the movable triangle B is on the left side of the brush. The sinker at the brush is not pressed by the movable triangle B and is still in the state of holding the yarn. Then enter Figure 6 In the state shown, the knitting needle at the brush position is in a looped state, and the head extends out of the needle groove. For this reason, the control panel drives the brush to rise through the guidance of the lifting slider to avoid contact between the brush and the needle head. At the same time, the movable triangle B moves to the brush and presses the sinker at the brush, thereby raising the brush to facilitate the avoidance of the knitting needle when it is out of the needle. Finally, enter Fig.11 In the state shown, the knitting needle is in the pulling state, and the knitting needle re-enters the needle groove. The brush then descends again under the guidance of the guide groove D to brush the sinker. At this time, the movable triangle B moves to the right side of the brush, so that the sinker in the area where the brush is located descends again and holds the yarn. It should be noted that as the knitting needle state changes back and forth, the brush mechanism and the triangle mechanism are driven back and forth by the driving mechanism to make adaptive reciprocating changes following the extension state of the knitting needle.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting brush scissor device for a computerized flat knitting machine. Features: include The base plate (1) is provided with a guide groove A (11) extending along the length direction; The driving mechanism (2) comprises a control plate (22) and a power assembly (21), wherein the control plate (22) is slidably disposed in the guide groove A (11), and the power assembly (21) is drivingly connected to the control plate (22) to drive the control plate (22) to slide back and forth in the guide groove A (11); A lifting slider (5) is connected to the driving mechanism (2) and has a guide groove B (51) on the vertical plane. The guide groove B (51) rises and falls synchronously with the needle heads of the knitting needles. The brush mechanism (4) is connected to the lifting slider (5) and is driven to rise and fall synchronously with the guide groove B (51) under the drive of the reciprocating lifting slider (5); The cam mechanism (3) is arranged on the base plate (1) and is drivingly connected to the control plate (22) to drive the sinker to swing according to the state of the knitting needle when forming a loop.

2. A lifting brush sling device for a computerized flat knitting machine as claimed in claim 1, Features: The base plates (1) are also provided with pressure plates (6), and the pressure plates (6) are pressed smoothly against the surface of the control plate (22).

3. A lifting brush sling device for a computerized flat knitting machine as claimed in claim 1, Features: The power assembly (21) comprises a connecting seat (213), the connecting seat (213) is mounted on the base plate (1), a motor (211) is mounted on the connecting seat (213), an output shaft of the motor (211) passes through the connecting seat (213) and is coaxially connected to a gear (212), a rack (214) is also arranged above the base plate (1), the rack (214) is meshedly connected to the gear (212), and the rack (214) is connected to the control board (22).

4. A lifting brush scissor device for a computerized flat knitting machine as claimed in claim 1, Features: The brush mechanism (4) comprises a lifting component (41) and a brush component (42); the lifting component (41) comprises a sliding seat (411) fixedly mounted on a base plate (1); a slider A (412) capable of vertical sliding is arranged in the sliding seat (411); a guide rod A (413) is arranged on the slider A (412); the guide rod A (413) passes through the sliding seat (411) and then slides into the guide groove B (51); the brush component (42) is connected to the slider A (412) so as to rise and fall synchronously with the slider A (412).

5. A lifting brush sling device for a computerized flat knitting machine as claimed in claim 1, Features: The cam mechanism (3) comprises a fixed cam (31) and a movable cam group (32); the fixed cam (31) is mounted on the lower part of the base plate (1); the movable cam group (32) is drivingly connected to the control board (22) so as to form a guide groove for controlling the swing of the sinker with the fixed cam (31) under the drive of the control board (22).

6. A lifting brush sling device for a computerized flat knitting machine as claimed in claim 5, Features: The base plate (1) is provided with two vertically extending guide grooves C (12), and the control plate (22) is provided with two guide grooves D (221) symmetrically on the left and right. The tracks of the guide grooves D (221) correspond to the raising and lowering settings of the knitting needles. The movable cam group (32) comprises two sliders B (321) respectively slidably arranged in the guide grooves C (12). One side of the sliders B (321) is connected to a guide rod B (322) slidably inserted in the guide grooves D (221), and the other side of the sliders B (321) is connected to the movable cam A (323). The movable cam reciprocates and rises and falls in the guide grooves C (12) to form a guide groove for guiding the swing of the lifting plate when approaching the fixed cam (31).

7. A lifting brush sling device for a computerized flat knitting machine as claimed in claim 5, Features: The base plate (1) is provided with a transversely extending guide groove E (13), and the movable triangle group (32) includes a slider C (324), one side of the slider C (324) is fixedly connected to the control board (22), and the other side of the slider C (324) is fixedly connected to the movable triangle B (325), and the movable triangle B (325) and the corresponding fixed triangle (31) below form a guide groove for guiding the swing of the lifting plate.

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