Cloth falling device of flat knitting machine

Abstract

The embodiment of the utility model discloses a cropping device of a flat knitting machine, which is used for solving the technical problems that a cropping door in the cropping device of the existing flat knitting machine is not matched with any locking component, so that the cropping door is easy to fall off in the process of collecting cloth pieces by a user, and safety accidents are caused. The cloth falling device comprises a rack, a swing arm, a cloth falling door and a driving assembly, the swing arms are arranged on the two opposite sides of the machine frame, the bottom ends of the swing arms are connected with first transverse axes, a connecting part is arranged on the inner side face of the cloth falling door, a hanging buckle groove is formed in the connecting part, the hanging buckle groove is hung on the first transverse axes in a buckled mode, a locking assembly is arranged on the first transverse axes, and the locking assembly is connected with the swing arms. The first transverse axis is fixedly connected with the connecting part through the locking assembly, and the driving assembly is used for driving the swing arm to rotate in the preset direction so as to drive the cropping door to rotate synchronously.

Description

Technical Field

[0001] The utility model relates to the technical field of knitting flat knitting machine design, in particular to a cloth dropping device of a knitting flat knitting machine. Background Art

[0002] In the textile processing process, as an advanced knitting device, a knitting flat knitting machine can achieve efficient and precise knitting operations through computer control and programming, and is widely used in the textile industry to produce various knitted items.

[0003] In the prior art, the cloth dropping device of a knitting flat knitting machine is used for discharging the formed textile. Since the cloth dropping door in the existing cloth dropping device does not match any locking components, during the process of a user collecting the formed placement (cloth piece), the cloth dropping door is very easy to fall off under force, which is likely to cause personal injury to the user and result in safety accidents.

[0004] Therefore, finding a technical solution that can solve the above technical problems has become an important research topic for those skilled in the art. Summary of the Utility Model

[0005] An embodiment of the utility model discloses a cloth dropping device of a knitting flat knitting machine, which is used to solve the technical problem that in the existing cloth dropping device of a knitting flat knitting machine, since the cloth dropping door does not match any locking components, during the process of a user collecting cloth pieces, the cloth dropping door is likely to fall off, thus causing safety accidents.

[0006] An embodiment of the utility model provides a cloth dropping device of a knitting flat knitting machine, including a frame, a swing arm, a cloth dropping door and a driving component;

[0007] The swing arms are arranged on both opposite sides of the frame. The bottom end of the swing arm is connected with a first horizontal axis. A connecting part is arranged on the inner side of the cloth dropping door. A hanging buckle groove is arranged on the connecting part. The hanging buckle groove is buckled on the first horizontal axis. A locking component is arranged on the first horizontal axis. The first horizontal axis is fixedly connected with the connecting part through the locking component. The driving component is used to drive the swing arm to rotate in a preset direction to drive the cloth dropping door to rotate synchronously.

[0008] Optionally, the locking component includes a lock tongue piece and a lock pin;

[0009] The lock tongue piece is fixed on the first horizontal axis, and a first lock hole is opened on the lock tongue piece. A second lock hole is opened at a position corresponding to the first lock hole on the connecting part. The lock pin is sequentially inserted into the first lock hole and the second lock hole, so as to fix the connecting part on the first horizontal axis.

[0010] Optionally, the driving component includes a bottom needle plate, a lifting module, a mounting plate, a first abutting part and a tension spring;

[0011] The lifting module is installed inside the frame. The mounting plate is connected to the lifting module. The lifting module is used to drive the mounting plate to lift in the vertical direction. The bottom lifting needle plate and the first abutting part are installed on the mounting plate.

[0012] A transverse guide groove is formed on the outer side surface of the frame. A limiting and anti-collision part is arranged in the middle of the swing arm. The limiting and anti-collision part is slidably connected in the transverse guide groove. A second transverse axis is rotatably connected inside the limiting and anti-collision part. A third transverse axis is installed on the outer side surface of the frame. The second transverse axis and the third transverse axis are connected by the tension spring.

[0013] A second abutting part cooperating with the first abutting part is further arranged at the bottom end of the swing arm. When the mounting plate is in the lowest position, the first abutting part abuts against the second abutting part to limit the rotation of the swing arm. When the mounting plate is driven to rise, the first abutting part and the second abutting part are separated, and the swing arm rotates in a preset direction under the elastic force of the tension spring.

[0014] Optionally, the lifting module includes a transmission belt, a driving pulley rotatably connected to the frame, and a driven pulley.

[0015] The driving pulley and the driven pulley are connected by a transmission belt. The driving pulley is connected with a driving motor. The mounting plate is connected with the transmission belt.

[0016] Optionally, an extension plate is movably connected to the top of the cloth dropping door.

[0017] Optionally, a guiding screw is further included. An adjusting hole is formed in the extension plate along its length direction. A threaded hole is arranged at the top of the cloth dropping door. The screw rod of the guiding screw passes through the adjusting hole and is in threaded connection with the threaded hole.

[0018] Optionally, edge guards are arranged on opposite sides of the outer side surface of the cloth dropping door.

[0019] Optionally, side sealing plates are installed on opposite inner sides of the frame. The cloth dropping door is located between the two side sealing plates.

[0020] Optionally, a hopper and a cloth receiving plate are further included.

[0021] The cloth receiving plate is installed on the frame and is located below the cloth dropping door.

[0022] The hopper is detachably installed on the frame and is located below the cloth receiving plate.

[0023] Optionally, the width of the cloth dropping door is greater than the width of the bottom lifting needle plate.

[0024] As can be seen from the above technical solutions, the embodiments of the present utility model have the following advantages:

[0025] In the cloth dropping device of this embodiment, a connecting portion is provided on the inner side surface of the cloth dropping door, a hanging buckle groove is provided on the connecting portion, the hanging buckle groove is buckled on the first transverse axis of the swing arm, a locking assembly is provided on the first transverse axis, and the first transverse axis is fixedly connected to the connecting portion through the locking assembly. In the above design, the cloth dropping door can be locked on the first transverse axis of the swing arm through the locking assembly. During the driving and swinging process of the swing arm, the cloth dropping door is always connected to the swing arm, effectively avoiding the detachment of the cloth dropping door when the user collects the cloth pieces, and ensuring the operation safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Schematic structural diagram of a cloth dropping device of a knitting flat knitting machine provided by an embodiment of the present utility model;

[0028] Figure 2 Front view of the internal structure of a cloth dropping device of a knitting flat knitting machine provided by an embodiment of the present utility model;

[0029] Figure 3 Schematic diagram of the inner side surface structure of the cloth dropping door of a cloth dropping device of a knitting flat knitting machine provided by an embodiment of the present utility model;

[0030] Figure 4 Schematic diagram of the outer side surface structure of the cloth dropping door of a cloth dropping device of a knitting flat knitting machine provided by an embodiment of the present utility model;

[0031] Figure 5 Schematic structural diagram of a driving assembly in a cloth dropping device of a knitting flat knitting machine provided by an embodiment of the present utility model;

[0032] Figure 6 Schematic structural diagram of a tension spring of a driving assembly in a cloth dropping device of a knitting flat knitting machine provided by an embodiment of the present utility model;

[0033] Figure 7 Schematic structural diagram when the locking assembly and the connecting portion in a cloth dropping device of a knitting flat knitting machine provided by an embodiment of the present utility model are in cooperation;

[0034] Figure 8Schematic cross-sectional structure diagram when the drop cloth door does not rotate when the mounting plate in the drop cloth device of a knitting flat knitting machine provided by an embodiment of the present invention is in the lowest position;

[0035] Figure 9 Schematic three-dimensional cross-sectional structure diagram when the drop cloth door does not rotate when the mounting plate in the drop cloth device of a knitting flat knitting machine provided by an embodiment of the present invention is in the lowest position;

[0036] Figure 10 Schematic cross-sectional structure diagram when the drop cloth door rotates when the mounting plate in the drop cloth device of a knitting flat knitting machine provided by an embodiment of the present invention is in the highest position;

[0037] Figure 11 Schematic three-dimensional cross-sectional structure diagram when the drop cloth door rotates when the mounting plate in the drop cloth device of a knitting flat knitting machine provided by an embodiment of the present invention is in the highest position;

[0038] Illustration description: Frame 1; Drop cloth door 2; Extension plate 3; Guide screw 4; Adjustment hole 5; Side sealing plate 6; Cloth receiving plate 7; Hopper 8; Bottom needle plate 9; Swing arm 10; First horizontal axis 11; Mounting plate 12; First abutting part 13; Second abutting part 14; Driving pulley 15; Driven pulley 16; Transmission belt 17; Connecting part 18; Hanging buckle groove 19; Second lock hole 20; Door buckle finger position 21; Baffle 22; Lock tongue piece 23; Lock pin 24; Third horizontal axis 25; Second horizontal axis 26; Limit anti-collision part 27; Tension spring 28; Horizontal guide groove 29; Width distance d between the drop cloth door and the bottom needle plate. Detailed implementation manners

[0039] An embodiment of the present invention discloses a drop cloth device for a knitting flat knitting machine, which is used to solve the technical problem that in the existing drop cloth device of a knitting flat knitting machine, since the drop cloth door does not match any locking components, the drop cloth door is likely to fall off during the process of the user collecting the cloth pieces, thus causing safety accidents.

[0040] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Please refer to Figures 1 to 11 , a drop cloth device for a knitting flat knitting machine provided by an embodiment of the present invention includes a frame 1, a swing arm 10, a drop cloth door 2 and a driving assembly;

[0042] On opposite sides of the frame 1, there are provided swing arms 10. At the bottom end of the swing arm 10, there is a first horizontal axis 11. On the inner side of the cloth-falling door 2, there is a connecting portion 18. On the connecting portion 18, there is a hanging slot 19. The hanging slot 19 is hooked on the first horizontal axis 11. On the first horizontal axis 11, there is a locking assembly. The first horizontal axis 11 is fixedly connected to the connecting portion 18 through the locking assembly. The driving assembly is used to drive the swing arm 10 to rotate in a preset direction to drive the cloth-falling door 2 to rotate synchronously.

[0043] It should be noted that the hanging slot 19 in this embodiment is specifically similar to a U-shaped groove structure.

[0044] In the cloth-falling device of this embodiment, on the inner side of the cloth-falling door 2, there is a connecting portion 18. On the connecting portion 18, there is a hanging slot 19. The hanging slot 19 is hooked on the first horizontal axis 11 of the swing arm 10. On the first horizontal axis 11, there is a locking assembly. The first horizontal axis 11 is fixedly connected to the connecting portion 18 through the locking assembly. In the above design, the cloth-falling door 2 can be locked on the first horizontal axis 11 of the swing arm 10 through the locking assembly. During the swinging process of the swing arm 10 driven, the cloth-falling door 2 is always connected to the swing arm 10, effectively preventing the cloth-falling door 2 from falling off when the user collects the cloth pieces, ensuring the operation safety of the user.

[0045] Furthermore, the locking assembly in this embodiment includes a locking tongue piece 23 and a locking pin 24;

[0046] The locking tongue piece 23 is fixed on the first horizontal axis 11, and a first locking hole is provided on the locking tongue piece 23. At a position corresponding to the first locking hole on the connecting portion 18, there is a second locking hole 20. The locking pin 24 is sequentially inserted into the first locking hole and the second locking hole 20, thereby fixing the connecting portion 18 on the first horizontal axis 11.

[0047] It should be noted that by sequentially inserting the locking pin 24 into the first locking hole and the second locking hole 20, the connecting portion 18 can be fixed on the first horizontal axis 11. When it is necessary to repair and disassemble the cloth-falling door 2, the locking pin 24 can be pulled out from the first locking hole and the second locking hole 20. Through the above design, the locking operation of the cloth-falling door 2 can be completed quickly and simply, making it more convenient and safe for the user during use.

[0048] Furthermore, the driving assembly in this embodiment includes a bottom-lifting needle plate 9, a lifting module, a mounting plate 12, a first abutting portion 13, and a tension spring 28;

[0049] The lifting module is installed inside the frame 1. The mounting plate 12 is connected to the lifting module. The lifting module is used to drive the mounting plate 12 to lift in the vertical direction. The bottoming needle plate 9 and the first abutting portion 13 are installed on the mounting plate 12;

[0050] A transverse guide groove 29 is formed on the outer side surface of the frame 1. A limiting and anti-collision portion 27 is provided in the middle of the swing arm 10. The limiting and anti-collision portion 27 is slidably connected in the transverse guide groove 29. A second transverse axis 26 is rotatably connected inside the limiting and anti-collision portion 27. A third transverse axis 25 is installed on the outer side surface of the frame 1. The second transverse axis 26 and the third transverse axis 25 are connected by the tension spring 28;

[0051] A second abutting portion 14 that cooperates with the first abutting portion 13 is further provided at the bottom end of the swing arm 10.

[0052] It should be noted that the specific working principle of the above driving assembly is as follows:

[0053] When the mounting plate 12 is at the lowest position, the first abutting portion 13 abuts against the second abutting portion 14 to limit the rotation of the swing arm 10;

[0054] When the mounting plate 12 is driven to rise, the first abutting portion 13 is separated from the second abutting portion 14, and the swing arm 10 rotates in a preset direction under the elastic force of the tension spring 28.

[0055] In addition, the design of the above transverse guide groove 29 limits the displacement of the limiting and anti-collision portion 27, thereby limiting the rotation angle of the swing arm 10. Moreover, the limiting and anti-collision portion 27 has an anti-collision function to prevent damage to the frame or itself when it contacts the side wall of the transverse guide groove 29. Preferably, the limiting and anti-collision portion is made of a buffer material, namely, silica gel or a rubber support.

[0056] Furthermore, the lifting module in this embodiment includes a transmission belt 17, a driving pulley 15 rotatably connected to the frame 1, and a driven pulley 16;

[0057] The driving pulley 15 and the driven pulley 16 are connected by the transmission belt 17. The driving pulley 15 is connected to a driving motor, and the mounting plate 12 is connected to the transmission belt 17.

[0058] It should be noted that in the above design, the driving motor drives the driving pulley 15 to rotate. During the rotation of the driving pulley 15, the driven pulley 16 is driven to rotate through the transmission belt 17, and then the mounting plate 12 can be lifted under the drive of the transmission belt 17.

[0059] Furthermore, the top of the cloth-dropping door 2 in this embodiment is movably connected with an extension plate 3.

[0060] It should be noted that the extension plate 3 in this embodiment can be specifically extended and retracted along the length direction of the cloth drop door 2. In actual application, when the cloth drop door 2 is reset (not rotating), the extension plate 3 can be attached to the inclined surface of the needle bed base of the knitting machine; during the normal knitting process of the knitting machine, the extension plate 3 can cover the cloth drop range, effectively preventing the cloth pieces from falling into the knitting machine or being hung; during the maintenance of the knitting machine, by shrinking the extension plate 3 to overlap with the cloth drop door 2, sufficient space can be increased for the cloth drop door 2 to rotate.

[0061] Specifically, it also includes a guide screw 4, the extension plate 3 is provided with an adjustment hole 5 along its length direction, the top of the cloth drop door 2 is provided with a threaded hole, and the screw rod of the guide screw 4 passes through the adjustment hole 5 and is threadedly connected with the threaded hole.

[0062] It should be noted that when the guide screw 4 is tightened, the extension plate 3 and the cloth-dropping door 2 are fixed together; when the guide screw 4 is loosened, the extension plate 3 can move along the length direction of the cloth-dropping door 2, thereby realizing the telescopic function.

[0063] Furthermore, retaining edges 22 are provided on opposite sides of the outer side surface of the cloth-dropping door 2 in this embodiment.

[0064] It should be noted that the above design can prevent the yarn from falling into the bottom needle plate 9 from the corners, thereby ensuring that the knitting machine can work normally.

[0065] Furthermore, side sealing plates 6 are installed on two opposite inner sides of the frame 1 in this embodiment, and the cloth-dropping door 2 is located between the two side sealing plates 6 .

[0066] It should be noted that, through the above design, the yarn can be effectively prevented from being rolled into the bottom needle plate 9.

[0067] Furthermore, the cloth dropping device of the knitting machine in this embodiment further includes a hopper 8 and a cloth receiving plate 7;

[0068] The cloth receiving plate 7 is installed on the frame 1 and is located below the cloth dropping door 2;

[0069] The hopper 8 is detachably mounted on the frame 1 and is located below the fabric receiving plate 7 .

[0070] It should be noted that the cloth receiving plate 7 and the cloth dropping door 2 in this embodiment adopt a separate design, which is different from the traditional solution in which the cloth dropping door 2 and the cloth receiving plate 7 adopt an integrated design. This design can be more convenient for operation and effectively reduce the space occupied by users for maintenance.

[0071] In addition, the hopper 8 in this embodiment can be detachably mounted on the frame 1, and the user can disassemble and assemble it according to the actual use site, which is more convenient for the user to operate.

[0072] Furthermore, the width of the cloth-dropping door 2 in this embodiment is greater than the width of the bottom needle plate 9 .

[0073] It should be noted that, through the above-mentioned design, the cloth-dropping door 2 can completely cover the bottom needle plate 9, effectively preventing the yarn from being rolled into the bottom needle plate 9 and affecting its normal use function.

[0074] Furthermore, at least one door catch finger position 21 is provided on the cloth drop door 2 in this embodiment to facilitate the user to manually operate the cloth drop door 2 to rotate.

[0075] The above is a detailed introduction to the cloth dropping device of a knitting machine provided by the utility model. For a general technician in this field, according to the idea of ​​the embodiment of the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A cloth dropping device for a flat knitting machine, characterized in that: It includes a frame, a swing arm, a cloth-dropping door and a driving assembly; The swing arms are provided on opposite sides of the frame, the bottom ends of the swing arms are connected to the first transverse axis, the inner side surface of the cloth dropping door is provided with a connecting portion, the connecting portion is provided with a hook groove, the hook groove is hooked on the first transverse axis, a locking assembly is provided on the first transverse axis, the first transverse axis is fixedly connected to the connecting portion through the locking assembly, and the driving assembly is used to drive the swing arm to rotate in a preset direction to drive the cloth dropping door to rotate synchronously.

2. The cloth dropping device of the flat knitting machine according to claim 1, characterized in that: The locking assembly includes a locking tongue and a locking pin; The lock tongue piece is fixed on the first transverse axis, and a first lock hole is formed on the lock tongue piece, a second lock hole is formed at a position of the connecting part corresponding to the first lock hole, and the locking pin is sequentially inserted into the first lock hole and the second lock hole, thereby fixing the connecting part on the first transverse axis.

3. The cloth dropping device of the flat knitting machine according to claim 1, characterized in that: The driving assembly includes a bottom needle plate, a lifting module, a mounting plate, a first abutment portion and a tension spring; The lifting module is installed in the frame, the mounting plate is connected to the lifting module, the lifting module is used to drive the mounting plate to move up and down in the vertical direction, and the bottom needle plate and the first abutment portion are installed on the mounting plate; A transverse guide groove is provided on the outer side of the frame, a limited anti-collision part is provided in the middle of the swing arm, the limited anti-collision part is slidably connected in the transverse guide groove, a second transverse axis is rotatably connected in the limited anti-collision part, a third transverse axis is installed on the outer side of the frame, and the second transverse axis is connected to the third transverse axis through the tension spring; The bottom end of the swing arm is also provided with a second abutment portion that cooperates with the first abutment portion. When the mounting plate is in the lowest position, the first abutment portion and the second abutment portion abut against each other to limit the rotation of the swing arm. When the mounting plate is driven to rise, the first abutment portion and the second abutment portion are separated, and the swing arm rotates in a preset direction under the elastic force of the tension spring.

4. The cloth dropping device of the flat knitting machine according to claim 3, characterized in that: The lifting module includes a transmission belt and a driving pulley and a driven pulley rotatably connected to the frame; The driving pulley is connected to the driven pulley via a transmission belt, the driving pulley is connected to a driving motor, and the mounting plate is connected to the transmission belt.

5. The cloth dropping device of the flat knitting machine according to claim 1, characterized in that: The top of the cloth-dropping door is movably connected with an extension plate.

6. The cloth dropping device of the flat knitting machine according to claim 5, characterized in that: It also includes a guide screw. The extension plate is provided with an adjustment hole along its length direction. The top of the cloth-dropping door is provided with a threaded hole. The screw rod of the guide screw passes through the adjustment hole and is threadedly connected with the threaded hole.

7. The cloth dropping device of the flat knitting machine according to claim 1, characterized in that: The opposite sides of the outer side of the cloth-dropping door are both provided with retaining edges.

8. The cloth dropping device of the flat knitting machine according to claim 1, characterized in that: Side sealing plates are installed on two opposite inner sides of the frame, and the cloth-dropping door is located between the two side sealing plates.

9. The cloth dropping device of a flat knitting machine according to claim 1, characterized in that: It also includes a hopper and a cloth receiving plate; The cloth receiving plate is installed on the frame and is located below the cloth dropping door; The hopper is detachably mounted on the frame and is located below the fabric receiving plate.

10. The cloth dropping device of a flat knitting machine according to claim 3, characterized in that: The width of the cloth-dropping door is greater than the width of the bottom needle plate.

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