Yarn cutting device for warping machine

Abstract

The utility model relates to the technical field of warping machines, and discloses a yarn cutting device for a warping machine. The yarn cutting device for the warping machine comprises a bottom plate, a supporting frame is fixedly installed above the bottom plate, a PLC is fixedly installed above the supporting frame, a downward-pressing air cylinder is installed above the supporting frame in a penetrating and inserting mode, a cutter is fixedly installed at the bottom of the downward-pressing air cylinder, a stepping motor is fixedly installed above the bottom plate, and the PLC is fixedly installed above the stepping motor. The cutter is driven by the downward pressing air cylinder to clamp a silk thread with the rubber pad, the stepping motor drives the movable plate through the gear and the rack to do left-right reciprocating motion, the rubber pad installed above the movable plate can make displacement between the silk thread and a cutting edge of the cutter through friction force between the rubber pad and the silk thread, and the silk thread is completely cut off. In addition, due to the cutting mode, the silk thread can be limited above the rubber pad, and certain relative pressure is always kept between the silk thread and the cutting edge of the cutter in the cutting process, so that the silk thread can be conveniently cut.

Description

Technical Field

[0001] This utility model relates to the field of warping machine technology, specifically to a wire cutting device for a warping machine. Background Technology

[0002] A warping machine is used to wind yarn from multiple bobbins on a bobbin rack into a single warp head. When the warp head is full, it needs to be replaced with a new one. Before replacement, the yarn needs to be adhered between two horizontal adhesive strips to prevent the yarn ends from becoming tangled. Then, the warp head rotates, causing the adhesive strips and yarn to wind onto the warp head. Finally, the yarn is cut and the cut end is secured.

[0003] The existing Chinese utility model patent with publication number CN221269383U discloses a yarn-cutting shear for a warping machine, including a fixed base plate. Two first electric telescopic rods are bolted to both ends of the upper surface of the fixed base plate. A support plate is provided between the telescopic ends of the two first electric telescopic rods. A cutting groove is provided in the middle of the support plate, and L-shaped plates are welded to both ends of the support plate. The first electric telescopic rods can move the support plate up and down, thereby adjusting the height of the device. A second electric telescopic rod can move a pressure plate up and down, which fixes the yarn to the surface of the support plate. A linear motor can move a heated cutting wire left and right, which cuts the yarn and prevents fraying. This yarn-cutting shear for a warping machine has a simple structure and is easy to operate. It not only adjusts the height of the device but also makes cutting yarn more convenient and prevents fraying at the cut ends, making it more convenient to use.

[0004] Current yarn cutting devices typically have two symmetrically mounted cutters. The cutters are usually driven by a transmission mechanism to move towards the cutter fixed above the base to cut the yarn. Due to the small diameter of the yarn, the yarn may bend at the point where the cutters overlap, resulting in the yarn not being cut. Furthermore, this cutting method requires a tensioning mechanism to tighten the yarn, which necessitates additional inspection of the tensioning mechanism during maintenance. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a yarn cutting device for warping machines, which has the advantages of preventing yarn from being unable to be cut due to excessive gap between the cutters, and has a simple structure that is easy to maintain, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wire cutting device for a warping machine, comprising: a base plate, a support frame fixedly mounted on the top of the base plate, a PLC controller fixedly mounted on the top of the support frame, a pressing cylinder inserted above the support frame, a cutter fixedly mounted at the bottom of the pressing cylinder, a stepper motor fixedly mounted on the top of the base plate, a gear inserted through the outer side of the stepper motor's shaft, a support cylinder inserted above the base plate, a movable rod fixedly mounted above the support cylinder, a limit rod fixedly mounted on the top of the base plate, sliding grooves fixedly mounted on the front and rear sides of the support frame, a movable plate movably mounted inside the sliding grooves, a rubber pad fitted onto the top surface of the movable plate, and a rack fixedly mounted below the movable plate; the stepper motor is capable of driving the gear to rotate.

[0009] As a preferred technical solution of this utility model, the bottom end of the support frame is fixedly connected to the base plate, and the pressing cylinder is symmetrically installed on the left and right sides of the top of the support frame with the center of the support frame as the reference, and the movable end of the pressing cylinder points vertically to the base plate; the support frame can restrict the position of the pressing cylinder.

[0010] As a preferred embodiment of this utility model, the cutter is movably connected to the support frame via a pressing cylinder, the stepper motor is mounted on the front and rear central axes of the base plate, and the gear is fixedly connected to the rotating shaft of the stepper motor; the cutter is capable of cutting the thread.

[0011] As a preferred embodiment of this utility model, the supporting cylinder is symmetrically installed on the left and right sides of the base plate with the center of the base plate as the reference. The movable rod is movably connected to the base plate through the supporting cylinder, and the left and right ends of the movable rod are provided with notches that fit into the limiting rod. The supporting cylinder can drive the movable rod to move.

[0012] As a preferred embodiment of this utility model, the movable rod and the limiting rod are connected in a sliding manner, the top end of the limiting rod is a horizontal columnar structure, and the center of the top surface of the movable rod is fitted with the bottom of the columnar structure at the top end of the limiting rod; the movable rod can limit the position of the thread after the cutting is completed.

[0013] As a preferred embodiment of this utility model, the slide groove is installed symmetrically on the front and rear sides of the support frame with the center of the support frame as the reference. The movable plate and the slide groove are slidably connected. The top surface of the movable plate is provided with a groove that fits into the rubber pad. The rubber pad can protect the blade of the cutter.

[0014] As a preferred embodiment of this utility model, the length of the movable plate is less than the distance between the vertical structures on the left and right sides of the support frame, the rack is fixedly installed at the center of the bottom surface of the movable plate, and the rack and gear mesh with each other; the rack can drive the movable plate to move.

[0015] Compared with the prior art, this utility model provides a wire cutting device for a warping machine, which has the following features:

[0016] Beneficial effects:

[0017] This invention utilizes a stepper motor mounted on the front-rear central axis of the base plate. The gear is fixedly connected to the stepper motor's shaft, and the length of the movable plate is less than the distance between the vertical structures on both sides of the support frame. A rack is fixedly installed at the center of the movable plate's bottom surface, meshing with the gear. A sliding groove restricts the position and height of the movable plate, ensuring the rack and gear at the bottom remain meshed. When the stepper motor drives the gear to rotate, the gear, through the rack, moves the movable plate left and right. During cutting, the cutter moves downwards under the action of a downward-pressing cylinder, and the cutting edge... This will cause the wire to move downwards until the cutter clamps the wire with the rubber pad. Then, the stepper motor drives the movable plate through gears and racks to perform left and right reciprocating motion. The rubber pad installed above the movable plate can cause the wire to move between itself and the blade of the cutter through the friction between itself and the wire, thereby completely cutting the wire. In this cutting method, the wire is confined above the rubber pad, and a certain relative pressure is always maintained between the wire and the blade of the cutter during the cutting process. This allows the wire to be cut in a relaxed state, without the need for a tensioning mechanism to keep the wire taut, thus reducing maintenance operations and making maintenance easier. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cutter mounting structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the slide rail installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the gear and rack connection structure of this utility model;

[0022] The components are: 1. Base plate; 11. Support frame; 12. PLC controller; 13. Downward cylinder; 14. Cutter; 15. Stepper motor; 16. Gear; 17. Support cylinder; 18. Movable rod; 19. Limit rod; 110. Slide groove; 111. Movable plate; 112. Rubber pad; 113. Rack. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1 - Figure 4 In this embodiment, a wire cutting device for a warping machine includes: a base plate 1, a support frame 11 fixedly mounted on the top of the base plate 1, a PLC controller 12 fixedly mounted on the top of the support frame 11, a pressing cylinder 13 inserted above the support frame 11, a cutter 14 fixedly mounted at the bottom of the pressing cylinder 13, a stepper motor 15 fixedly mounted on the top of the base plate 1, a gear 16 inserted on the outer side of the rotating shaft of the stepper motor 15, a support cylinder 17 inserted above the base plate 1, a movable rod 18 fixedly mounted above the support cylinder 17, a limit rod 19 fixedly mounted on the top of the base plate 1, sliding grooves 110 fixedly mounted on the front and rear sides of the support frame 11, a movable plate 111 movably mounted inside the sliding grooves 110, a rubber pad 112 fitted onto the top surface of the movable plate 111, and a rack 113 fixedly mounted below the movable plate 111.

[0027] The bottom end of the support frame 11 is fixedly connected to the base plate 1. The pressing cylinder 13 is symmetrically installed on the left and right sides of the top of the support frame 11 with the center of the support frame 11 as the reference, and the movable end of the pressing cylinder 13 points vertically to the base plate 1. The cutter 14 is movably connected to the support frame 11 through the pressing cylinder 13. The stepper motor 15 is installed on the front and rear central axis of the base plate 1. The gear 16 is fixedly connected to the rotating shaft of the stepper motor 15. The support cylinder 17 is symmetrically installed on the left and right sides of the base plate 1 with the center of the base plate 1 as the reference. The movable rod 18 is movably connected to the base plate 1 through the support cylinder 17, and the left and right ends of the movable rod 18 are provided with fittings that engage with the limit rod 19. The notch is formed by the sliding connection between the movable rod 18 and the limiting rod 19. The top of the limiting rod 19 is a horizontal columnar structure. The center of the top surface of the movable rod 18 is fitted with the bottom of the columnar structure at the top of the limiting rod 19. The slide groove 110 is installed symmetrically on the front and rear sides of the support frame 11 with the center of the support frame 11 as the reference. The movable plate 111 and the slide groove 110 are connected by a sliding connection. The top surface of the movable plate 111 is provided with a groove that fits into the rubber pad 112. The length of the movable plate 111 is less than the distance between the vertical structures on the left and right sides of the support frame 11. The rack 113 is fixedly installed at the center of the bottom surface of the movable plate 111, and the rack 113 meshes with the gear 16.

[0028] Specifically, the PLC controller 12 is model FX3SA-30MR-CM. The PLC controller 12 can coordinate the extension of the pressing cylinder 13 and the support cylinder 17, and adjust the rotation direction of the stepper motor 15. The pressing cylinder 13 and the support cylinder 17 are model SCT63X100x150S, and the stepper motor 15 is model LS86A45. The base plate 1 can limit the position of the stepper motor 15 and the support frame 11. The support frame 11 limits the position of the pressing cylinder 13, preventing the position of the pressing cylinder 13 from changing during extension. The pressing cylinder 13 can drive the cutter 14 to move vertically. The cutter 14 moves downwards when the pressing cylinder 13 extends until the blade contacts the rubber pad 112. The stepper motor 15 can drive the gear 16 to rotate, and the support cylinder... 17 can adjust the distance between the movable rod 18 and the top columnar structure of the limiting rod 19. During the cutting process, the movable rod 18 is driven to move upward by the support cylinder 17, so that the top of the movable rod 18 is engaged with the top of the limiting rod 19. This prevents the wire on one side of the coil from being unable to maintain a taut state after cutting. At the same time, the position of the top of the limiting rod 19 is lower than the position of the cutter 14 when the pressing cylinder 13 is at its retraction limit, preventing the wire from contacting the blade of the cutter 14 when no cutting is being performed, thus preventing damage to the wire. The slide groove 110 can limit the position of the movable plate 111 and limit the height of the movable plate 111, so that the rack 113 and the gear 16 at the bottom of the movable plate 111 are kept in a meshing state. When the stepper motor 15 drives the gear 16 to rotate, the gear 16 can drive the movable plate 111 to move left and right through the rack 113.

[0029] In use, since the stepper motor 15 is mounted on the front and rear central axis of the base plate 1, the gear 16 is fixedly connected to the rotating shaft of the stepper motor 15, and the length of the movable plate 111 is less than the distance between the vertical structures on the left and right sides of the support frame 11, the rack 113 is fixedly mounted at the center of the bottom surface of the movable plate 111, and the rack 113 and the gear 16 mesh with each other. The slide groove 110 can limit the position of the movable plate 111 and limit the height of the movable plate 111, so that the rack 113 and the gear 16 at the bottom of the movable plate 111 remain in a meshing state. When the stepper motor 15 drives the gear 16 to rotate, the gear 16 can drive the movable plate 111 to move left and right through the rack 113. When cutting, the cutter 14 is driven by the pressing cylinder 13 to move towards... As the cutting blade 14 moves downwards, it will cause the wire to move downwards until the cutting blade 14 clamps the wire with the rubber pad 112. Then, the stepper motor 15 drives the movable plate 111 to reciprocate left and right through the gear 16 and rack 113. The rubber pad 112 installed above the movable plate 111 can cause the wire to move between the cutting blade 14 and the wire through the friction between itself and the wire, thereby completely cutting the wire. In this cutting method, the wire is restricted above the rubber pad 112. During the cutting process, the wire and the cutting blade 14 always maintain a certain relative pressure, so that the wire can be cut in a relaxed state without the need for a tensioning mechanism to keep the wire taut, thus reducing maintenance operations and facilitating maintenance.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A yarn cutting device for a warping machine, characterized in that, The utility model relates to a silk cutting device for a warping machine, which comprises a base plate (1), a support frame (11) fixedly installed on the upper side of the base plate (1), a PLC controller (12) fixedly installed on the upper side of the support frame (11), a downward pressing cylinder (13) penetratingly installed on the upper side of the support frame (11), a cutter (14) fixedly installed on the bottom of the downward pressing cylinder (13), a stepping motor (15) fixedly installed on the upper side of the base plate (1), a gear (16) penetratingly installed on the outer side of the rotating shaft of the stepping motor (15), a support cylinder (17) penetratingly installed on the upper side of the base plate (1), a movable rod (18) fixedly installed on the upper side of the support cylinder (17), a limiting rod (19) fixedly installed on the upper side of the base plate (1), a sliding groove (110) fixedly installed on the front and back sides of the support frame (11), and a movable plate (111) movably installed in the sliding groove (110), wherein the top surface of the movable plate (111) is embeddedly installed with a rubber pad (112), and the bottom of the movable plate (111) is fixedly installed with a rack (113).

2. The silk cutting device for a warping machine according to claim 1, wherein: the bottom end of the support frame (11) is fixedly connected with the base plate (1), the downward pressing cylinder (13) is symmetrically installed on the left and right sides of the top end of the support frame (11) with the center of the support frame (11) as a reference, and the movable end of the downward pressing cylinder (13) vertically points to the base plate (1).

3. The silk cutting device for a warping machine according to claim 1, wherein: the cutter (14) is movably connected between the downward pressing cylinder (13) and the support frame (11), the stepping motor (15) is installed on the front and back central axes of the base plate (1), and the gear (16) is fixedly connected with the rotating shaft of the stepping motor (15).

4. The silk cutting device for a warping machine according to claim 1, wherein: the support cylinder (17) is symmetrically installed on the left and right sides of the base plate (1) with the center of the base plate (1) as a reference, the movable rod (18) is movably connected between the support cylinder (17) and the base plate (1), and the left and right ends of the movable rod (18) are provided with notches embedded with the limiting rod (19).

5. The silk cutting device for a warping machine according to claim 1, wherein: the movable rod (18) is slidably connected with the limiting rod (19), the top end of the limiting rod (19) is in a horizontal columnar structure, and the center of the top surface of the movable rod (18) is embedded with the bottom of the columnar structure of the top end of the limiting rod (19).

6. The silk cutting device for a warping machine according to claim 1, wherein: the sliding groove (110) is mirror-symmetrically installed on the front and back sides of the support frame (11) with the center of the support frame (11) as a reference, the movable plate (111) is slidably connected with the sliding groove (110), and the top surface of the movable plate (111) is provided with a groove embedded with the rubber pad (112).

7. The silk cutting device for a warping machine according to claim 1, wherein: ​ The length of the movable plate (111) is less than the distance between the vertical structures on the left and right sides of the support frame (11), the rack (113) is fixedly installed at the center of the bottom surface of the movable plate (111), and the rack (113) and the gear (16) are in meshing engagement with each other.

Images