A kind of scissor-grip device of flat knitting machine

Abstract

A sine device of a knitting machine, wherein a sine control plate moves horizontally under the drive of a transmission mechanism, a sine main cam is arranged at the front side of a sine bottom plate and can move along a lower guide hole under the drive of a connecting plate, an intermediate action surface is arranged on the front wall of the sine main cam, an auxiliary left cam moves horizontally along a first upper guide hole, and the auxiliary left cam forms a left working surface, and an auxiliary right cam moves horizontally along a second upper guide hole, and the auxiliary right cam forms a right working surface. When the driving part of the sine device of the knitting machine drives the sine control plate to move left and right, the sine main cam moves up and down while moving left and right, while the auxiliary left cam and the auxiliary right cam always keep moving horizontally, so that the auxiliary left cam and the auxiliary right cam respectively form a left action surface and a right action surface that can reset the sinker after rotation, thereby extending the working surface of the sine device, increasing the stroke of the sine cam, and the sine cam will not interfere with the knitting needle when turning the needle.

Description

Technical Field

[0001] The invention relates to a flat knitting machine, in particular to a generator and brake device of the flat knitting machine. Background Art

[0002] The working principle of the existing flat knitting machine is generally to make the yarn complete the actions of padding, closing, looping, bending, undoing and looping through the regular lifting and lowering of the knitting needle, so as to realize the knitting of the yarn into a woven fabric. During the rising process of the knitting needle, the coil gradually withdraws from the needle hook and opens the needle tongue, which is hung on the needle bar. During the descending process of the knitting needle, the needle hook hooks the newly padded yarn and pulls it to form a new coil, while the original coil is separated from the needle hook, and the new coil is connected in series with the original coil. Multiple coils formed by multiple knitting needles are connected to each other to form a woven fabric.

[0003] During the rising process of the knitting needle, due to the friction between the needle bar and the coil and the elasticity of the yarn, the coil will float upward with the knitting needle, affecting the smooth withdrawal of the loop. In order to overcome this defect, a sinker device is provided on the knitting machine to help the knitting needle to smoothly complete the withdrawal action. The sinker device generally includes a sinker and a sinker triangle device that directly acts on the sinker. The sinker rotates up and down under the action of the sinker triangle device to realize the function of pressing the coil or yarn when the knitting needle withdraws the loop. The working surface length of the traditional sinker device is relatively short, and the stroke of the sinker triangle is limited. In addition, the versatility of the traditional sinker device is relatively poor and it is difficult to adapt to any machine model. For thick needle models, the sinker triangle is easy to interfere with the knitting needle when turning the needle, affecting the smooth knitting. In summary, the sinker device of the existing knitting machine needs to be further improved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a knitting machine's stemming device with a large working stroke and no interference with the knitting needles when turning the needles, in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: the generator of the knitting machine is characterized by comprising:

[0006] Driving parts;

[0007] A transmission mechanism, mounted on a drive output end of the drive member;

[0008] A signal control board is connected to the transmission mechanism and moves horizontally under the drive of the transmission mechanism;

[0009] A sine wave bottom plate is arranged parallel to the front side of the sine wave control plate, and a lower guide hole, a first upper guide hole and a second upper guide hole are opened on the sine wave bottom plate, the lower guide hole is arranged horizontally and in a wave shape, and the first upper guide hole and the second upper guide hole are arranged horizontally and in a straight line shape;

[0010] The connecting plate is arranged in the gap between the Sink control board and the Sink bottom plate, and is connected to the Sink control board;

[0011] The main cam of the sinker is arranged on the front side of the sinker bottom plate and connected to the connecting plate. It can move along the lower guide hole driven by the connecting plate. The front wall of the main cam of the sinker is provided with an intermediate action surface that can act on the sinker installed on the needle plate of the flat knitting machine to rotate the sinker.

[0012] An auxiliary left triangle cooperates with the upper left corner guide of the main Sinking triangle to move synchronously with the main Sinking triangle and can move horizontally along the first upper guide hole. The auxiliary left triangle faces the side of the main Sinking triangle to form a left working surface for resetting the rotated sinker.

[0013] The auxiliary right triangle cooperates with the upper right corner guide of the Sinker main triangle and can move synchronously with the Sinker main triangle, and can move horizontally along the second upper guide hole. The auxiliary right triangle forms a right working surface facing the side of the Sinker main triangle for resetting the sinker after rotation.

[0014] In order to enable the auxiliary left triangle and the auxiliary right triangle to move smoothly along the corresponding upper guide holes, a left guide block and a right guide block are further provided in the gap between the Sink control board and the Sink bottom plate, the auxiliary left triangle is connected to the left guide block, the auxiliary right triangle is connected to the right guide block, the left guide block is slidably set in the first upper guide hole, and the right guide block is slidably set in the second upper guide hole.

[0015] Preferably, a horizontal track groove is formed on the front wall of the Sink main triangle, and the lower side surface of the horizontal track groove forms the intermediate action surface.

[0016] In order to make the auxiliary left triangle and the auxiliary right triangle better cooperate with the main triangle, the lower side surface of the horizontal trajectory groove is inclined and extended toward the lower left side to form a lower left inclined surface, and the lower side surface of the horizontal trajectory groove is inclined and extended toward the lower right side to form a lower right inclined surface. The left working surface of the auxiliary left triangle is parallel to the lower left inclined surface, and the left working surface is connected with the upper side surface of the horizontal trajectory groove. The right working surface of the auxiliary right triangle is parallel to the lower right inclined surface, and the right working surface is connected with the upper side surface of the horizontal trajectory groove.

[0017] Further preferably, the lower guide hole has a W-shaped wave structure.

[0018] In order to enable the connecting plate to move up and down relative to the Sinker control plate when the Sinker control plate moves horizontally, the connecting plate is in an inverted V shape, a vertical waist-shaped hole is opened on the Sinker control plate, the middle part of the connecting plate is connected to the vertical waist-shaped hole through a first roller, a second roller is installed on the Sinker bottom plate, a horizontal waist-shaped hole is opened on the Sinker control plate, and the second roller is arranged on the horizontal waist-shaped hole.

[0019] In order to make the main Sink triangle move more smoothly, the left and right sides of the connecting plate are connected to the main Sink triangle through a third roller, and the third roller passes through the lower guide hole and can roll along the lower guide hole.

[0020] The driving member and the transmission mechanism can have a variety of structures. Preferably, the driving member is a motor, and the transmission mechanism includes a driving gear, a sector gear and a gear row. The driving gear is installed on the output shaft of the motor, the driving gear is meshed with one side of the sector gear, and the gear row is meshed with the other side of the sector gear. The gear row is fixedly connected to the Sinker control board.

[0021] Further preferably, it also includes a motor mounting plate, which is fixedly connected to the Sink base plate through a connecting seat, the motor is mounted on the motor mounting plate, the output shaft of the motor extends upward from the motor mounting plate, and the driving gear, sector gear and gear row are arranged above the motor mounting plate.

[0022] In order to make the Sink device have a zero-position sensing function, a sensor seat is installed on the Sink bottom plate, a zero-position sensor is installed on the sensor seat, and a magnetic steel matched with the zero-position sensor is installed on the gear row.

[0023] Compared with the prior art, the advantages of the present invention are that the shearing device of the knitting machine includes a shearing main cam and an auxiliary left cam and an auxiliary right cam which are slidably arranged on the left and right sides of the shearing main cam. When the driving member drives the shearing control plate to move left and right, it can drive the shearing main cam to move up and down while moving left and right, and the auxiliary left cam and the auxiliary right cam can slide relative to the shearing main cam while always maintaining horizontal movement, so that the auxiliary left cam and the auxiliary right cam respectively form left and right action surfaces for resetting the rotated sinker, thereby extending the working surface of the shearing device and increasing the stroke of the shearing cam. In particular, for coarse needle machines, the shearing cam will not interfere with the knitting needle when turning the needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the embodiment of the present invention when the main Sinker triangle is in a low position;

[0025] Figure 2 for Figure 1 A partial enlarged schematic diagram of

[0026] Figure 3 Figure 1 A schematic diagram of the structure from another angle;

[0027] Figure 4 for Figure 3 A partial enlarged schematic diagram of

[0028] Figure 5 for Figure 4 Schematic diagram of the three-dimensional decomposition of

[0029] Figure 6 It is a schematic diagram of the structure of an embodiment of the present invention when the main Sinker triangle is in a high position;

[0030] Figure 7 for Figure 6 A partial enlarged schematic diagram of . DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 7 As shown, the Sinker device of the knitting machine of this embodiment includes main components such as a driving member, a transmission mechanism 2, a Sinker control board 3, a Sinker base plate 4, a connecting plate 5, a Sinker main cam 6, an auxiliary left cam 7, an auxiliary right cam 8, a left guide block 9 and a right guide block 10.

[0033] The driving part is a motor 1, a motor mounting plate 14 is horizontally arranged and fixedly connected to the sine bottom plate 4 through a connecting seat 15, the motor 1 is mounted on the motor mounting plate 14, and the output shaft of the motor 1 extends upward from the motor mounting plate 14. The transmission mechanism 2 includes a driving gear 21, a sector gear 22 and a gear row 23 located above the motor mounting plate 14, the driving gear 21 is mounted on the output shaft of the motor 1, the driving gear 21 is meshed with one side of the sector gear 22, the gear row 23 is meshed with the other side of the sector gear 22, and the gear row 23 is fixedly connected to the sine control board 3. Figure 1 The direction indicated by the middle arrow A is right. Driven by the motor 1, the gear row 23 can be driven to move left and right, thereby driving the signal control board 3 to move horizontally.

[0034] The sine wave bottom plate 4 is located in front of the sine wave control board 3 and is parallel to the sine wave control board 3. A gap is formed between the sine wave bottom plate 4 and the sine wave control board 3. A lower guide hole 41, a first upper guide hole 42 and a second upper guide hole 43 are formed on the sine wave bottom plate 4. The lower guide hole 41 is arranged horizontally and presents a W-shaped wave structure. The first upper guide hole 42 and the second upper guide hole 43 are both arranged horizontally and present a straight line. The inner ends of the first upper guide hole 42 and the second upper guide hole 43 are located above the lower guide hole 41, and the outer ends of the first upper guide hole 42 and the second upper guide hole 43 are located outside the lower guide hole 41.

[0035] The Sinking device of this embodiment includes three groups of Sinking triangles, which are spaced apart along the length direction of the Sinking base plate 4. Each group of Sinking triangles includes a Sinking main triangle 6, an auxiliary left triangle 7, and an auxiliary right triangle 8, and the Sinking main triangle 6, the auxiliary left triangle 7, and the auxiliary right triangle 8 are all arranged on the front side of the Sinking base plate 4. Figure 4 The direction indicated by the middle arrow B is left, and the auxiliary left triangle 7 is guided and matched with the upper left corner of the main triangle 6, that is, the auxiliary left triangle 7 can slide relative to the main triangle 6, and the auxiliary right triangle 8 is guided and matched with the upper right corner of the main triangle 6, that is, the auxiliary right triangle 8 can slide relative to the main triangle 6. The auxiliary left triangle 7 and the main triangle 6, as well as the auxiliary right triangle 8 and the main triangle 6, are guided and matched by guide grooves and guide ribs. The guide and matched structure is a conventional structure and will not be described in detail here.

[0036] The connecting plate 5 of this embodiment is in an inverted V shape and is arranged in the gap between the sine wave control plate 3 and the sine wave bottom plate 4, that is, the tip of the connecting plate 5 faces upward. A vertical waist-shaped hole 31 is opened on the sine wave control plate 3, and the middle part of the connecting plate 5 is connected to the vertical waist-shaped hole 31 through the first roller 11. The left and right sides of the connecting plate 5 are connected to the sine wave main triangle 6 through the third roller 13, and the third roller 13 passes through the lower guide hole 41 and can roll along the lower guide hole 41. In this way, driven by the connecting plate 5, the sine wave main triangle 6 can move along the lower guide hole 41. In addition, a second roller 12 is installed on the sine wave bottom plate 4, and a horizontally distributed transverse waist-shaped hole 32 is opened on the sine wave control plate 3. The second roller 12 is arranged on the transverse waist-shaped hole 32. When the sine wave control plate 3 moves left and right relative to the sine wave bottom plate 4, the second roller 12 is always limited in the transverse waist-shaped hole 32, thereby ensuring that the sine wave control plate 3 can always maintain horizontal movement.

[0037] The left guide block 9 and the right guide block 10 are arranged in the gap between the Sink control board 3 and the Sink bottom board 4, and the left guide block 9 is slidably arranged in the first upper guide hole 42, and the right guide block 10 is slidably arranged in the second upper guide hole 43. The auxiliary left triangle 7 is connected to the left guide block 9 by a screw 19, and the auxiliary right triangle 8 is connected to the right guide block 10 by a screw 19. Since the left guide block 9 and the right guide block 10 can only move horizontally along the first upper guide hole 42 and the second upper guide hole 43, it can be ensured that the auxiliary left triangle 7 and the auxiliary right triangle 8 move left and right along the horizontal direction.

[0038] like Figure 4 and Figure 7 As shown, a horizontal track groove 60 is formed on the front wall of the main scissor 6, and the lower side of the horizontal track groove 60 forms an intermediate action surface 61, which is used to act on the sinker (not shown in the figure) installed on the needle plate of the flat knitting machine to rotate the sinker. The intermediate action surface 60 extends obliquely to the lower left side to form a lower left inclined surface 62, and the intermediate action surface 60 extends obliquely to the lower right side to form a lower right inclined surface 63. The side of the auxiliary left triangle 7 facing the main scissor 6, that is, the right side of the auxiliary left triangle 7, forms a left working surface 71, the left working surface 71 is parallel to the lower left inclined surface 62, and the left working surface 71 is connected to the upper side of the horizontal track groove 60. The side of the auxiliary right triangle 8 facing the main scissor 6, that is, the left side of the auxiliary right triangle 8, forms a right working surface 81, the right working surface 81 is parallel to the lower right inclined surface 63, and the right working surface 81 is connected to the upper side of the horizontal track groove 60. The left working surface 71 and the right working surface 81 are used to reset the sinker after rotation.

[0039] In addition, the Sink device of this embodiment also has a zero position detection mechanism. Specifically, a sensor seat 16 is installed on the Sink base plate 4, a zero position sensor 17 is installed on the sensor seat 16, and a magnet 18 matching the zero position sensor 17 is installed on the gear row 23.

[0040] The working process of the bionic device is as follows: In the initial state, if Figure 1As shown, when the magnetic steel 18 is located at the sensing position below the zero position sensor 17, the zero position sensor 17 outputs a corresponding signal to the controller of the flat knitting machine (shown in the figure). At this time, the main shengke triangle 6 is in a low position, that is, located at the lowest position of the wavy lower guide hole 41. During operation, the motor 1 drives the shengke control plate 3 to move left and right through the transmission mechanism 2, and the shengke control plate 3 drives the main shengke triangle 6 to move along the wavy lower guide hole 41 through the connecting plate 5, that is, the main shengke triangle 6 moves upward relative to the shengke bottom plate 4. During the movement of the main shengke triangle 6, the middle action surface 61 of the main shengke triangle 6 acts on the sinker to rotate the sinker. At the same time, taking the diagram of this embodiment as an example, driven by the main shengke triangle 6, the auxiliary left triangle 7 and the auxiliary right triangle 8 move to the left with the main shengke triangle 6 relative to the shengke bottom plate 4, that is, from Figure 4 The position shown is Figure 7 As shown in the position movement, during the relative movement of the auxiliary left triangle 7 and the auxiliary right triangle 8 with the main sinker triangle 6, the left side action surface 71 and the right side action surface 81 are exposed, and the left side action surface 71 and the right side action surface 81 reset the rotated sinker.

[0041] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, various modifications or improvements can be made to the present invention without departing from the principle of the present invention, which are all considered to be within the scope of protection of the present invention.

Claims

1. A knitting machine's signal generator, characterized in that include: Driving parts; A transmission mechanism (2) mounted on a drive output end of the drive member; A signal control plate (3) is connected to the transmission mechanism (2) and moves horizontally under the drive of the transmission mechanism (2); A sine wave bottom plate (4) is arranged parallel to the front side of the sine wave control plate (3), and a lower guide hole (41), a first upper guide hole (42) and a second upper guide hole (43) are formed on the sine wave bottom plate (4), wherein the lower guide hole (41) is arranged horizontally and in a wave shape, and the first upper guide hole (42) and the second upper guide hole (43) are arranged horizontally and in a straight line shape; A connecting plate (5) is arranged in a gap between the Sinking control plate (3) and the Sinking bottom plate (4), and is connected to the Sinking control plate (3); A main cam (6) is arranged on the front side of the cam bottom plate (4) and connected to the connecting plate (5). Driven by the connecting plate (5), the main cam (6) can move along the lower guide hole (41). The front wall of the main cam (6) is provided with an intermediate action surface (61) which can act on a sinker installed on the needle plate of the flat knitting machine to rotate the sinker. The auxiliary left triangle (7) cooperates with the upper left corner guide of the main triangle (6) to move synchronously with the main triangle (6) and can move horizontally along the first upper guide hole (42). The auxiliary left triangle (7) faces the side of the main triangle (6) to form a left working surface (71) for resetting the sinker after rotation. The auxiliary right triangle (8) cooperates with the upper right corner guide of the main triangle (6) to move synchronously with the main triangle (6) and can move horizontally along the second upper guide hole (43). The auxiliary right triangle (8) forms a right working surface (81) for resetting the sinker after rotation toward the side of the main triangle (6). A left guide block (9) and a right guide block (10) are also provided in the gap between the main triangle control plate (3) and the bottom plate (4). The auxiliary left triangle (7) is connected to the left guide block (9), and the auxiliary right triangle (8) is connected to the right guide block (10). The connecting plate (5) is an inverted V-shaped structure, and a vertical waist-shaped hole (31) is formed on the sine wave control plate (3). The middle part of the connecting plate (5) is connected to the vertical waist-shaped hole (31) through a first roller (11). A second roller (12) is installed on the sine wave bottom plate (4). A transverse waist-shaped hole (32) is formed on the sine wave control plate (3). The second roller (12) is arranged on the transverse waist-shaped hole (32).

2. The signal generator of a flat knitting machine according to claim 1, characterized in that: A horizontal track groove (60) is formed on the front wall of the Sinker main triangle (6), and the lower side surface of the horizontal track groove (60) forms the intermediate action surface (61).

3. The signal generator of a flat knitting machine according to claim 2, characterized in that: The lower side surface of the horizontal track groove (60) is inclined and extended toward the lower left side to form a lower left inclined surface (62), and the lower side surface of the horizontal track groove (60) is inclined and extended toward the lower right side to form a lower right inclined surface (63). The left working surface (71) of the auxiliary left triangle (7) is parallel to the lower left inclined surface (62), and the left working surface (71) is connected to the upper side surface of the horizontal track groove (60). The right working surface (81) of the auxiliary right triangle (8) is parallel to the lower right inclined surface (63), and the right working surface (81) is connected to the upper side surface of the horizontal track groove (60).

4. The signal generator of a flat knitting machine according to claim 1, characterized in that: The lower guide hole (41) has a W-shaped wave structure.

5. The signal generator of a flat knitting machine according to claim 1, characterized in that: The left and right sides of the connecting plate (5) are connected to the Sinker main triangle (6) via a third roller (13), and the third roller (13) passes through the lower guide hole (41) and can roll along the lower guide hole (41).

6. The sinker device of a flat knitting machine according to any one of claims 1 to 5, characterized in that: The driving member is a motor (1), and the transmission mechanism (2) comprises a driving gear (21), a sector gear (22) and a tooth row (23), wherein the driving gear (21) is mounted on an output shaft of the motor (1), the driving gear (21) is meshed with one side of the sector gear (22), the tooth row (23) is meshed with the other side of the sector gear (22), and the tooth row (23) is fixedly connected to the sine wave control board (3).

7. The sinker device of a flat knitting machine according to claim 6, characterized in that: The invention also comprises a motor mounting plate (14), wherein the motor mounting plate (14) is fixedly connected to the Sink bottom plate (4) via a connecting seat (15), the motor (1) is mounted on the motor mounting plate (14), the output shaft of the motor (1) extends upward from the motor mounting plate (14), and the driving gear (21), the sector gear (22) and the gear row (23) are arranged above the motor mounting plate (14).

8. The sinker device of a flat knitting machine according to claim 6, characterized in that: An inductor seat (16) is installed on the Sink bottom plate (4), a zero position inductor (17) is installed on the inductor seat (16), and a magnetic steel (18) matched with the zero position inductor (17) is installed on the tooth row (23).

Images