A glove machine scissor device

Abstract

This invention discloses a scissor device for a glove machine, comprising a scissor mechanism, a thread-hooking mechanism, a linear motion guiding mechanism composed of a linear guide rail and a slider, and a motion driving mechanism connected to the slider. The scissor mechanism includes a moving blade and a stationary blade forming the scissors, and a moving blade driving mechanism. The stationary blade is fixedly installed relative to the slider. The linear guide rail is supported by a bracket and installed above the needle plate of the glove machine. The thread-hooking mechanism includes at least two thread-hooking arms, at least one thread-clamping arm, and a thread-hooking and thread-clamping driving mechanism. The front end of the thread-hooking arm is provided with a thread hook, and the front end of the thread-clamping arm is provided with a thread-clamping part that cooperates with the thread hook. The rear ends of all the thread-hooking arms and the rear ends of the thread-clamping arms are fixedly connected. Thread-hooking arms are respectively provided on both sides of the scissor mechanism. The moving blade driving mechanism and the thread-hooking and thread-clamping driving mechanism are connected using the same power mechanism. This invention solves the problem of existing glove machines leaving thread ends on the outer surface of the glove, and realizes that the left thread ends are located on the inner surface of the glove, simplifying the structure.

Description

Technical Field

[0001] This invention relates to glove machine components, and more particularly to a glove machine scissor device. Background Technology

[0002] The glove knitting machine is a double-needle-plate knitting machine with two herringbone-shaped needle plates. The knitting needles move up and down within the needle grooves of the needle plates. The needle hooks on both needle plates are located at the top. Yarn is fed to the needle hooks by a lateral movement of a yarn feeder located above the top of the needle plates. The movement of the needle hooks and the latches completes the knitting process. During the knitting process, a scissor device is used to cut the yarn and clamp it when changing the knitting position or yarn.

[0003] Existing glove machines typically employ a scissor mechanism consisting of two independent thread-hooking mechanisms and a scissor mechanism located between them. The thread-hooking mechanism performs the thread-hooking and clamping actions. This type of scissor mechanism, where the thread-hooking and scissor mechanisms are driven by independent drive mechanisms, is relatively complex. If positioned above the needle plate, it can easily interfere with the movement of the yarn feeder. Current glove machines typically place the scissor mechanism on the inner side below the angle between the two needle plates. According to the glove knitting principle, the thread ends produced by cutting the yarn will inevitably remain on the outer surface of the glove, requiring trimming and shaping after the glove is knitted. Summary of the Invention

[0004] The purpose of this invention is to solve the defects of existing glove machine scissor devices, such as complex mechanisms and residual thread ends located on the outer surface of the glove after cutting the yarn, and to provide a glove machine scissor device with a simple structure that allows the residual thread ends to be located inside the glove cavity.

[0005] Therefore, the present invention adopts the following technical solution: a glove machine scissor device, comprising a scissor mechanism, a hooking mechanism, a moving drive mechanism, and a linear moving guide mechanism. The linear moving guide mechanism includes a linear guide rail and a slider that cooperates with and is moved and guided by the linear guide rail. The moving drive mechanism is connected to the slider. The scissor mechanism includes a moving blade and a stationary blade forming the scissors, and a moving blade drive mechanism that drives the moving blade to rotate while cutting. The stationary blade is fixedly installed relative to the slider. The linear guide rail is supported by a support and installed above the top of the needle plate of the glove machine. The hooking mechanism includes at least two hooking arms, at least one clamping arm, and a hooking and clamping drive mechanism that drives the hooking and clamping action. The hooking arms are provided with hooks at their front ends, and the clamping arms are provided with clamping parts that cooperate with the hooks to clamp the thread at their front ends. The rear ends of all hooking arms and all clamping arms are fixedly connected. The hooking arms are respectively provided on both sides of the scissor mechanism. The hooking and clamping drive mechanism includes a power mechanism. The moving blade drive mechanism and the hooking and clamping drive mechanism are connected and use the same power mechanism.

[0006] As a supplement and improvement to the above technical solution, the present invention also includes the following technical features.

[0007] Preferably, the power mechanism is a motor, and the hook-and-clamp drive mechanism further includes a transmission rod, a swing arm, a mounting base, a guide support, and a clamping arm movement drive mechanism. The bottom end of the swing arm and the transmission rod form an axially movable but circumferentially non-rotatable fit connection. The transmission rod is connected to the motor, and the motor drives the swing arm to rotate through the transmission rod. The guide support is fixedly installed on the slider, and the mounting base is connected to the guide support through an arc-shaped movement guide mechanism. The guide support supports the mounting base, and the arc-shaped movement guide mechanism guides its movement. The mounting base is rotatably connected to the top end of the swing arm, and the swing arm drives the mounting base to move. The hook-and-clamp arm is fixedly installed on the mounting base. The clamping arm is supported and installed on the mounting base through a guide limiting mechanism and connected to the clamping arm movement drive mechanism. The mounting base drives the hook-and-clamp arm and the clamping arm to move simultaneously, and the clamping arm movement drive mechanism drives the clamping arm to move relative to the mounting base.

[0008] The guide limiting mechanism is a guide groove provided on the mounting base, and the clamping arm is placed in the guide groove.

[0009] The wire clamping arm moving drive mechanism includes a spring, a lateral limiting block that moves simultaneously with the wire clamping arm, and a vertical limiting block that is fixed in position. The vertical limiting block is located on the moving path of the lateral limiting block. One end of the spring is fixed to the mounting base, and the other end is fixed to the tail end of the wire clamping arm.

[0010] Furthermore, the vertical limiting block is fixed to the guide support.

[0011] Furthermore, the arc-shaped moving guide mechanism includes an arc-shaped sliding groove hole disposed on the guide support and a cylinder disposed on the side of the mounting base. The cylinder is inserted into the arc-shaped sliding groove hole. The moving plate driving mechanism includes a driving groove and a driving sliding member disposed at the tail of the moving plate. The driving sliding member is inserted into the driving groove and connected to the cylinder. The mounting base moves under the drive of the swing arm, driving the cylinder to move under the guidance of the arc-shaped sliding groove, driving the driving sliding member to move in the driving groove, and driving the moving plate to perform shearing rotation around the shear pin.

[0012] The arc-shaped moving guide mechanism can also be an arc-shaped linear rail and an arc-shaped slider with an arc-shaped groove that mates with the arc-shaped linear rail, and the mounting base is connected to the arc-shaped slider.

[0013] Furthermore, two cylinders are provided on each of the opposite sides of the mounting base, and there are two guide supports. Each guide support is provided with two arc-shaped sliding holes, and one of the cylinders is integrated with the driving sliding component.

[0014] The linear guide is a guide rod, which is axially parallel to the transmission rod. The slider is provided with a sliding seat, and the sliding seat is provided with a sliding hole for fitting the guide rod and the transmission rod.

[0015] The transmission rod is provided with an axial plane to make its cross-section D-shaped. The bottom end of the swing arm is formed into two transmission rod sleeve parts spaced apart. The transmission rod sleeve parts are provided with transmission rod sleeve holes. The wall of the transmission rod sleeve hole is provided with a circumferential limiting surface, which cooperates with the axial plane on the transmission rod to limit the circumferential movement between the swing arm and the transmission rod. The sliding seat is embedded between the two transmission rod sleeve parts to limit the swing arm relative to the guide support in the axial direction of the transmission rod.

[0016] The stationary plate is mounted on the stationary plate mounting base, and the stationary plate mounting base is fixedly mounted on the slider.

[0017] The moving drive mechanism includes a moving drive motor, a synchronous belt ring, and two pulleys. The two pulleys are respectively located at both ends of the linear guide rail. One of the pulleys is fixed to the rotating shaft of the moving drive motor. The synchronous belt ring is fitted onto the two pulleys. The slider is fixedly connected to the synchronous belt ring.

[0018] The present invention achieves the following beneficial effects: By setting the scissor device above the needle plate of the glove machine, hooking, clamping, and cutting the yarn above the knitting area, the remaining yarn ends are located on the inner surface of the glove cavity. This reduces the need for cutting and shaping the remaining yarn ends after the glove is knitted, saves labor costs, and makes the glove more aesthetically pleasing and improves glove quality. By adopting a double-arc sliding groove on each side combined with a cylindrical double-arc guide support structure, and using the support guide cylinder of the hooking arm and clamping arm mounting base as the scissor cutting drive mechanism, the scissor cutting drive mechanism and the hooking and clamping drive mechanism are connected and use the same power mechanism. This simplifies the structure, makes the operation simple and coordinated, reduces equipment material costs, and improves equipment performance and operational stability. Attached Figure Description

[0019] Figure 1 This is a diagram showing the installation location of the present invention on a glove machine.

[0020] Figure 2 This is a three-dimensional structural diagram of the invention in one direction when it is in the clamping position.

[0021] Figure 3 This is a three-dimensional structural diagram of the invention in another direction when it is in the clamping position.

[0022] Figure 4 This is a top view of the invention when it is in the clamped position.

[0023] Figure 5 yes Figure 4 AA sectional view.

[0024] Figure 6 yes Figure 4 BB cross-sectional view.

[0025] Figure 7 This is a three-dimensional structural diagram of the swing arm of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the clamping arm of the present invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the mounting base of the present invention.

[0028] Figure 10 This is a three-dimensional structural diagram of the present invention when it is in the outline position.

[0029] Figure 11 This is a three-dimensional structural diagram of the present invention when it is in the wire-cutting position. Implementation

[0030] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The described embodiments are only for illustration and explanation of the present invention and do not constitute the only limitation of the present invention.

[0031] like Figure 1 As shown, the present invention discloses a scissor device for a glove machine, comprising a scissor mechanism, a hook-and-loop mechanism, a moving drive mechanism, and a linear moving guide mechanism. The linear moving guide mechanism includes a linear guide rail 6 and a slider 4 that cooperates with and is moved and guided by the linear guide rail. The linear guide rail 6 is supported at both ends by two supports 8 and mounted on the top of the needle plate 1 of the glove machine. The moving drive mechanism includes a moving drive motor 7, a synchronous belt ring 9, and two pulleys. The two pulleys are respectively located at both ends of the linear guide rail 6. One pulley is fixedly mounted on the rotating shaft of the moving drive motor 7, and the other pulley is supported by a shaft and bearing and mounted on a support 8 on one side. The synchronous belt ring 9 is mounted on the two pulleys, and the slider 4 is fixedly connected to the synchronous belt ring 9.

[0032] like Figure 2-9 As shown, the scissor mechanism includes a moving plate 19 and a stationary plate 14, as well as a moving plate drive mechanism that drives the moving plate to rotate and cut. The stationary plate 14 is mounted on a stationary plate mounting base 15, and the stationary plate mounting base 15 is fixedly mounted on the slider 4, so that the stationary plate 14 is fixedly mounted relative to the slider 4. The moving plate 19 is supported in the middle by a scissor pin 21 and cooperates with the stationary plate 14 to form scissors.

[0033] The hooking mechanism includes three hooking arms 16, two clamping arms 13, and a hooking and clamping drive mechanism for driving the hooking and clamping action. The hooking and clamping drive mechanism includes a power mechanism, a transmission rod 5, a swing arm 11, a mounting base 18, a right guide support 17, a left guide support 10, and a clamping arm movement drive mechanism. The right guide support 17 and the left guide support 10 are fixedly mounted on the slider 4 and located to the left of the stationary plate mounting base 15. The linear guide rail 6 serves as a guide rod, and the transmission rod 5 is supported at both ends by bearings and mounted on the support 8, parallel to the axial direction of the guide rod. Four sliding seats 41 are provided on the slider 4, two of which are located between the right guide support 17 and the left guide support 10. Two sliding holes are provided on the stationary plate mounting base 15, the right guide support 17, the left guide support 10, and each sliding seat, through which the guide rod and the transmission rod pass to form a clearance fit. The transmission rod 5 has an axial plane, making its cross-section D-shaped.

[0034] The top end 112 of the swing arm 11 has a long slot 1121, and the mounting base 18 has a cavity. The top end of the swing arm 11 is inserted into the cavity and rotatably connected by a rotating shaft passing through the long slot and the cavity. The swing arm rotates to drive the mounting base. The bottom end of the swing arm 11 is formed by two spaced-apart transmission rod sleeves 111 forming a spacer cavity. The transmission rod sleeves have transmission rod sleeve holes, and the walls of the transmission rod sleeve holes have circumferential limiting surfaces 1111. The two transmission rod sleeves clamp one of the sliding seats 41 located between the right guide support 17 and the left guide support 10 into their spacer cavity, and the transmission rod is sleeved through its transmission rod sleeve hole. The circumferential limiting surface and the axial plane cooperate to limit the circumferential movement between the swing arm and the transmission rod, so that the bottom end of the swing arm and the transmission rod form a axially movable but circumferentially non-rotating connection. The power mechanism is a motor 2. The transmission rod 5 is connected to the motor 2 through gear transmission, and the motor drives the swing arm to rotate through the transmission rod. Both the right guide support 17 and the left guide support 10 are provided with two arc-shaped sliding groove holes. Two cylinders 181 are provided on the left and right sides of the mounting base, and the cylinders are inserted into the arc-shaped sliding groove holes to form an arc-shaped moving guide mechanism to support and guide the movement of the mounting base 18.

[0035] The hook arm 16 has a hook 161 at its front end, and the clamping arm has a clamping part 131 at its front end that cooperates with the hook to clamp the wire. The rear ends of two hook arms 16 are connected as a single mounting plate, which is fixedly mounted on the mounting base 18, so that the two hook arms 16 are located on the left side of the stationary plate mounting base 15 and between the right guide support 17 and the left guide support 10; the other hook arm 16 is located on the right side of the stationary plate mounting base 15, and its rear end is fixedly connected to the mounting plate through a bridging component.

[0036] The clamping arm is supported and installed on the mounting base by a guide limiting mechanism and connected to the clamping arm movement drive mechanism. The mounting base drives the hook arm and clamping arm to move simultaneously, and the clamping arm movement drive mechanism drives the clamping arm to move relative to the mounting base. The guide limiting mechanism is a guide groove 182 set on the top surface of the mounting base, in which the clamping arm 13 can move linearly. The clamping arm movement drive mechanism includes a spring 22, a lateral limiting block 132 set on the clamping arm 13, and a vertical limiting block 171 set on the top of the right guide support 17. An elbow 133 is provided at the rear end of the clamping arm. A screw 20 is installed at the bottom of the mounting base 18. One end of the spring 22 is fixedly connected to the screw 20 to fix it to the mounting base 18, and the other end is fixedly connected to the elbow 133 at the tail end of the clamping arm. The vertical limiting block 171 is located on the movement path of the lateral limiting block 132 and can block and limit the lateral limiting block 132 as it moves with the clamping arm.

[0037] The moving plate drive mechanism includes a drive groove and a drive sliding member disposed at the tail of the moving plate. The drive sliding member is a cylinder 181 inserted into the drive groove, allowing the moving plate drive mechanism and the hook-and-clamp drive mechanism to use the same power mechanism, both driven by a motor 2. The mounting base moves under the drive of the swing arm, causing the cylinder to move under the guidance of the arc-shaped groove, which in turn moves the drive sliding member within the drive groove, driving the moving plate to perform a shearing rotation around the scissor pin.

[0038] When the scissors mechanism is not performing its normal thread-cutting function, it is located at one end of the needle plate, with the hook arm at the rear and the thread clamping part clamping the thread against the hook. When it is necessary to cut the current knitting yarn, the moving drive motor 7 drives the synchronous belt ring 9 to rotate. The belt and slider 4 move linearly to the yarn-cutting position under the guidance of the guide rod 6 and the transmission rod 5, positioning the scissors to the right of the yarn feeder 3 that is feeding the yarn 12 to be cut. The forward rotation of motor 2 drives the swing arm 11 to swing through the transmission rod 5, driving the mounting base 18 to move forward and swing simultaneously under the limiting guidance of the arc-shaped moving guide mechanism. The thread clamping arm moves forward with the mounting base under the spring limit. After the mounting base moves forward a certain distance, the horizontal limit block is blocked by the vertical limit block, and the thread clamping arm no longer moves forward. The hook arm moves forward alone, and the spring is stretched to generate elastic force. The front end of the hook arm first tilts down over the yarn and then tilts up, positioning the yarn 12 inside the hook. The scissors are in the open state. Then, the motor reverses, driving the mounting base and the hook arm to move backward. The hooks on both sides of the scissors catch the yarn and move backward, pulling the yarn into the scissor opening. The clamping arm slides relative to the mounting base under the action of the spring force. After the mounting base moves backward a certain distance, the horizontal limiting block on the clamping arm disengages from the vertical limiting block, and its front clamping part cooperates with the hook to clamp the yarn 12. The mounting base continues to move backward, and the cylindrical drive plate rotates to close the scissor opening, cutting the yarn. The hook and clamping part on the left side of the scissors continue to clamp the yarn end. After the mounting base, hook arm, and clamping arm return to their original positions, the scissors device clamps the yarn and yarn tip together and moves to one end of the needle plate, waiting for the next yarn cutting and yarn changing clamping.

[0039] In another embodiment, the arc-shaped moving guide mechanism can also be an arc-shaped linear rail and an arc-shaped slider with an arc-shaped groove that mates with the arc-shaped linear rail. The mounting base is connected to the arc-shaped slider. The mounting base is provided with a cylinder, and an arc-shaped groove is provided on the right guide support. The cylinder passes through the arc-shaped groove and then inserts into the drive groove at the rear end of the moving piece.

Claims

1. A scissor device for a glove machine, comprising a scissor mechanism, a hooking mechanism, a moving drive mechanism, and a linear moving guide mechanism, wherein the linear moving guide mechanism includes a linear guide rail and a slider that cooperates with and is moved and guided by the linear guide rail; the moving drive mechanism is connected to the slider; the scissor mechanism includes a movable blade and a stationary blade forming the scissors, and a movable blade drive mechanism for driving the movable blade to rotate and cut; the stationary blade is fixedly installed relative to the slider, characterized in that: The linear guide rail is supported and mounted on the top of the needle plate of the glove machine by a support. The hooking mechanism includes at least two hooking arms, at least one clamping arm, and a hooking and clamping drive mechanism for driving the hooking and clamping action. The hooking arms are provided with hooks at their front ends, and the clamping arms are provided with clamping parts at their front ends that cooperate with the hooks to clamp the thread. The rear ends of all hooking arms and clamping arms are fixedly connected. The hooking arms are respectively provided on both sides of the scissor mechanism. The hooking and clamping drive mechanism includes a power mechanism. The moving plate drive mechanism and the hooking and clamping drive mechanism are connected and use the same power mechanism. The hooking and clamping drive mechanism also includes a transmission rod, a swing arm, a mounting base, a guide support, and a clamping arm moving drive mechanism. The bottom end of the swing arm and the transmission rod form an axially movable relationship. For movable, circumferentially non-rotatable mating connections, the transmission rod is connected to the power mechanism, which drives the swing arm to rotate via the transmission rod. The guide support is fixedly installed on the slider, and the mounting base is connected to the guide support via an arc-shaped moving guide mechanism. The guide support supports the mounting base, and the arc-shaped moving guide mechanism guides its movement. The mounting base is rotatably connected to the top of the swing arm, and the swing arm drives the mounting base to move. The hook arm is fixedly installed on the mounting base. The clamping arm is supported and installed on the mounting base via a guide limiting mechanism and connected to the clamping arm moving drive mechanism. The mounting base drives the hook arm and clamping arm to move simultaneously, and the clamping arm moving drive mechanism drives the clamping arm to move relative to the mounting base.

2. The glove machine scissor device according to claim 1, characterized in that: The power mechanism is an electric motor.

3. The glove machine scissor device according to claim 1, characterized in that: The guide limiting mechanism is a guide groove provided on the mounting base, and the clamping arm is placed in the guide groove.

4. The glove machine scissor device according to claim 3, characterized in that: The wire clamping arm moving drive mechanism includes a spring, a lateral limiting block that moves simultaneously with the wire clamping arm, and a vertical limiting block that is fixed in position. The vertical limiting block is located on the moving path of the lateral limiting block. One end of the spring is fixed to the mounting base, and the other end is fixed to the tail end of the wire clamping arm.

5. A glove machine scissor device according to claim 3 or 4, characterized in that: The arc-shaped moving guide mechanism includes an arc-shaped sliding groove hole disposed on the guide support and a cylinder disposed on the side of the mounting base. The cylinder is inserted into the arc-shaped sliding groove hole. The moving plate driving mechanism includes a driving groove and a driving sliding member disposed at the tail of the moving plate. The driving sliding member is inserted into the driving groove and connected to the cylinder. The mounting base moves under the drive of the swing arm, which drives the cylinder to move under the guidance of the arc-shaped sliding groove, which drives the driving sliding member to move in the driving groove, and drives the moving plate to perform shearing rotation around the shear pin.

6. A glove machine scissor device according to claim 3 or 4, characterized in that: The arc-shaped moving guide mechanism consists of an arc-shaped linear rail and an arc-shaped slider with an arc-shaped groove that mates with the arc-shaped linear rail, and the mounting base is connected to the arc-shaped slider.

7. A glove machine scissor device according to claim 5, characterized in that: The mounting base has two cylinders on each of its opposite sides, and there are two guide supports. Each guide support has two arc-shaped sliding holes, and one of the cylinders is integrated with the drive sliding component.

8. A glove machine scissor device according to claim 1, characterized in that: The linear guide is a guide rod, which is axially parallel to the transmission rod. The slider is provided with a sliding seat, and the sliding seat is provided with a sliding hole for fitting the guide rod and the transmission rod.

9. A glove machine scissor device according to claim 8, characterized in that: The transmission rod is provided with an axial plane to make its cross-section D-shaped. The bottom end of the swing arm is formed into two transmission rod sleeve parts spaced apart. The transmission rod sleeve parts are provided with transmission rod sleeve holes. The wall of the transmission rod sleeve hole is provided with a circumferential limiting surface, which cooperates with the axial plane on the transmission rod to limit the circumferential movement between the swing arm and the transmission rod. The sliding seat is embedded between the two transmission rod sleeve parts to limit the swing arm relative to the guide support in the axial direction of the transmission rod.

10. A glove machine scissor device according to claim 1, characterized in that: The moving drive mechanism includes a moving drive motor, a synchronous belt ring, and two pulleys. The two pulleys are respectively located at both ends of the linear guide rail. One of the pulleys is fixed to the rotating shaft of the moving drive motor. The synchronous belt ring is fitted onto the two pulleys. The slider is fixedly connected to the synchronous belt ring.

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