Screw transmission platform of bobbin and bobbin case winding removing machine

Abstract

The utility model discloses a screw transmission platform of a shuttle peg and shuttle shell winding machine. The screw transmission platform comprises a bottom plate, a vertical plate, a platform plate and a mechanical arm, y-direction screw rods are rotationally connected to the side faces of the vertical plates correspondingly, and Y-direction motors for providing rotation power for the Y-direction screw rods are fixedly arranged at one ends of the vertical plates; the bottom of the platform plate is meshed and sleeved on the Y-direction screw rod, the middle part of the top surface of the platform plate is rotationally connected with an X-direction screw rod, and one end of the top surface of the platform plate is fixedly provided with an X-direction motor for providing rotation power for the X-direction screw rod; a Z-direction screw rod is rotationally connected to the side wall of the front face of the mechanical arm, and a Z-direction motor for providing rotation power for the Z-direction screw rod is fixedly arranged at the top of the mechanical arm. The screw transmission platform is used for accurate positioning when a mechanical claw grabs a shuttle peg, a shuttle shell and a thread end, X-axis, Y-axis and Z-axis screw driving is used for replacing an existing belt transmission mode, the service life of the whole platform is effectively prolonged, the maintenance frequency is reduced, and the use efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile equipment, in particular to a screw transmission platform of a bobbin core and bobbin shell unwinding machine. Background Art

[0002] At present, the thread changing work of the bobbin core and bobbin case of the embroidery machine can be realized by automatic control and batch thread changing processing.

[0003] The applicant's prior research and development achievements: Chinese Patent CN221500183U discloses a power control system for a fully automatic bobbin winding and thread removal platform for textile machines. This system provides displacement power and positioning control for a manipulator in the XY horizontal plane above a base plate. The power control system comprises two radially arranged pulley assemblies mid-span, and a transmission belt wound around the two pulley assemblies. The motor output pulley and the first tensioning pulley are both rotatably connected to a fixed beam; the first guide pulley and the second guide pulley are rotatably connected to the top surfaces of the frame at each end; the sliding beam transmission pulley and the second tensioning pulley are rotatably connected to the bottom surface of the sliding beam and cooperate to clamp the transmission belt; the middle section of the transmission belt is fixedly clamped by the Y-axis sliding power input end of the lifting manipulator. This power control system, combined with the manipulator's own Z-axis lifting control, enables precise positioning of the manipulator's three-axis displacement above the base plate, facilitating the manipulator's determination of the thread end attachment position. The structure is simple and easy to implement.

[0004] During the operation of the above power control system, the applicant discovered the following problems:

[0005] 1. The life of the transmission belt is short. In order to ensure its accuracy during the transmission process, ensure its "timing" synchronization effect, and avoid problems such as belt loss, elongation and deformation, the transmission belt needs to be replaced regularly, which undoubtedly increases the equipment failure rate and equipment maintenance costs.

[0006] 2. When installing the transmission belt, its fixed structure, buckling, bending and winding structure are relatively complex, and the installation skills of the workers are required to be high.

[0007] 3. After the transmission belt is installed, it takes a period of time to debug. Each time the transmission belt is replaced, the error of the mechanical positioning coordinates is different, and there are many uncontrollable factors.

[0008] Therefore, how to design a transmission system to solve the various drawbacks of the above-mentioned transmission belt transmission has become a technical problem that needs to be solved urgently by people in this field. Utility Model Content

[0009] The purpose of the utility model is to solve the shortcomings of the existing technology and propose a screw transmission platform for a bobbin core and bobbin case de-winding machine. The screw transmission platform is used for precise positioning when a mechanical claw grabs the bobbin core, bobbin case and thread end. The screw drive of the X, Y and Z axes replaces the existing belt drive mode, effectively extending the service life of the entire platform, reducing maintenance frequency and improving usage efficiency.

[0010] The utility model discloses a screw drive platform for a bobbin core and bobbin case unwinding machine, comprising a bottom plate, upright plates fixed on both sides of the bottom plate, a platform plate slidably connected to the top surface of the upright plates, and a robotic arm connected to the platform plate for lifting and lowering; the sliding translation direction of the platform plate is defined as the Y direction, the extension direction of the platform plate is defined as the X direction, and the extension direction of the robotic arm is defined as the Z direction;

[0011] A Y-direction guide rail is fixed on the top surface of the vertical plate, and a Y-direction screw is rotatably connected to the opposite side surfaces of the vertical plate, and a Y-direction motor is fixed at one end of the vertical plate to provide rotational power for the Y-direction screw;

[0012] The two ends of the bottom surface of the platform plate are slidably buckled on the Y guide rails, and the bottom of the platform plate is meshed and sleeved on the Y screw. X guide rails are fixed on both sides of the top surface of the platform plate. The middle part of the top surface of the platform plate is rotatably connected to the X screw, and an X motor is fixed at one end of the top surface of the platform plate to provide rotational power for the X screw.

[0013] The lower back portion of the robotic arm is slidingly buckled onto the X-direction guide rail, the middle back portion of the robotic arm is meshedly sleeved onto the X-direction screw, the front side wall of the robotic arm is rotatably connected to the Z-direction screw, and the front side wall of the robotic arm is fixedly provided with the Z-direction guide rail, and the top of the robotic arm is fixedly provided with a Z-direction motor that provides rotational power for the Z-direction screw;

[0014] The meshing set on the Z-direction screw is connected to a mechanical claw that lifts and performs the thread end clamping action, and the mechanical claw is slidably buckled on the Z-direction guide rail.

[0015] Preferably, the mechanical claw includes a lifting plate, a gripping motor, and two gripping arms;

[0016] The back sliding buckle of the lifting plate is installed on the Z-direction guide rail and meshed with the Z-direction screw. A clamping motor is fixed on one side of the front of the lifting plate, and the other side of the front of the lifting plate is elastically rotated to connect the two clamping arms; the clamping motor provides power for the back-to-back opening movement of the two clamping arms.

[0017] Preferably, a pin is inserted into one side of the front face of the lifting plate, a torsion spring is embedded in the pin, and the outside of the pin is rotatably connected to the clamping arm; the torsion spring provides power for the relative clamping movement of the two clamping arms.

[0018] Preferably, a turntable is fixedly provided at the power output end of the clamping motor, and two shift rods are eccentrically fixedly provided on one axial end face of the turntable; the middle part of the clamping arm accommodates the shift rod and has a long hole extending in the Z direction, and the shift rod is supported by the inner wall of the long hole, and the force lever principle is used to provide the two clamping arms with back-opening power as the clamping motor rotates.

[0019] The screw transmission platform of the bobbin core and bobbin shell unwinding machine of the utility model has the following advantages and technical effects:

[0020] 1. The Y-direction guide rail, Y-direction screw and Y-direction motor on the platform plate provide the platform plate with Y-direction translation guide support and translation force.

[0021] 2. The X-direction guide rail, X-direction screw and X-direction motor on the platform plate provide X-direction translation guide support and translation force for the robotic arm.

[0022] 3. The Z-direction guide rail, Z-direction screw and Z-direction motor on the robotic arm provide the mechanical claw with Z-direction lifting and sliding guidance and lifting power.

[0023] 4. The two clamping arms of the mechanical claw provide the clamping power for the thread end, and the clamping motor provides the opening power for the clamping arms, so that the thread end can be clamped with the clamping force provided by the fixed torsion spring. During the clamping process, the clamping motor is powered off, and the torsional power of the clamping motor is only used to resist the torsion force of the torsion spring, which effectively increases the service life of the clamping motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model (front view 40°);

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model (back side 40°);

[0026] Figure 3 for Figure 1 A partial enlarged view of point A in the middle;

[0027] In the figure: 1-base plate; 2-vertical plate; 3-X-axis motor; 4-Y-axis guide rail; 5-Y-axis screw; 6-Y-axis motor; 7-X-axis guide rail; 8-X-axis screw; 9-platform plate; 10-robotic arm; 11-Z-axis motor; 12-Z-axis guide rail; 13-pin shaft; 14-gripping arm; 15-long hole; 16-shift lever; 17-turntable; 18-lifting plate; 19-gripping motor. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the utility model. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the utility model and are not to be construed as limiting the utility model.

[0029] A screw drive platform for a bobbin core and case unwinding machine includes a base plate 1, upright plates 2 fixed on both sides of the base plate, a platform plate 9 slidably connected to the top surface of the upright plates, and a robotic arm 10 connected to the platform plate for lifting and lowering. The sliding translation direction of the platform plate is defined as the Y direction, the extension direction of the platform plate is defined as the X direction, and the extension direction of the robotic arm is defined as the Z direction.

[0030] A Y-direction guide rail 4 is fixed on the top surface of the vertical plate, and a Y-direction screw 5 is rotatably connected to the opposite side surfaces of the vertical plate, and a Y-direction motor 6 is fixed at one end of the vertical plate to provide rotational power for the Y-direction screw;

[0031] The two ends of the bottom surface of the platform plate are slidably buckled onto the Y guide rails, and the bottom of the platform plate is meshedly sleeved on the Y screw. X guide rails 7 are fixed on both sides of the top surface of the platform plate. The middle part of the top surface of the platform plate is rotatably connected to the X screw 8, and an X motor 3 is fixed at one end of the top surface of the platform plate to provide rotational power for the X screw.

[0032] The lower back portion of the robotic arm is slidably mounted on the X-direction guide rail, the middle back portion of the robotic arm is meshedly mounted on the X-direction screw, the front side wall of the robotic arm is rotatably connected to the Z-direction screw, and the front side wall of the robotic arm is fixedly provided with a Z-direction guide rail 12, and the top of the robotic arm is fixedly provided with a Z-direction motor 11 that provides rotational power for the Z-direction screw;

[0033] The meshing set on the Z-direction screw is connected to a mechanical claw that lifts and performs the thread end clamping action, and the mechanical claw is slidably buckled on the Z-direction guide rail.

[0034] Preferably, the mechanical claw includes a lifting plate 18, a gripping motor 19, and two gripping arms 14;

[0035] The back sliding buckle of the lifting plate is installed on the Z-direction guide rail and meshed with the Z-direction screw. A clamping motor is fixed on one side of the front of the lifting plate, and the other side of the front of the lifting plate is elastically rotated to connect the two clamping arms; the clamping motor provides power for the back-to-back opening movement of the two clamping arms.

[0036] Preferably, a pin shaft 13 is inserted into one side of the front face of the lifting plate, a torsion spring is embedded in the pin shaft, and the outside of the pin shaft is rotatably connected to the clamping arm; the torsion spring provides power for the relative clamping movement of the two clamping arms.

[0037] Preferably, a turntable 17 is fixedly provided at the power output end of the clamping motor, and two shift rods 16 are eccentrically fixedly provided on one axial end face of the turntable; the middle part of the clamping arm accommodates the shift rod and has a long hole 15 extending in the Z direction, which is supported by the shift rod on the inner wall of the long hole, and provides the two clamping arms with back-opening power as the clamping motor rotates based on the principle of force lever.

[0038] In order to more clearly describe the specific implementation of the present invention, an embodiment is provided below:

[0039] The present invention provides a screw drive platform for a bobbin core and bobbin case unwinding machine. A conventional gripper block can be installed below the lifting plate of the mechanical claw to grasp and position the bobbin case with the bobbin. During the movement of the screw drive platform, the Y-axis screws on the two side vertical plates drive the platform plate to slide horizontally in the Y direction on the Y-axis guide rail. The X-axis screw on the platform plate drives the mechanical arm to slide horizontally in the Y direction on the X-axis guide rail. The Z-axis screw on the mechanical arm drives the lifting plate to rise and fall on the Z-axis guide rail, thereby achieving high-precision displacement control of the mechanical claw along three axes. Finally, the gripper arm of the mechanical claw grasps the thread end, and the gripper block grasps the entire bobbin core and bobbin case before transferring it to the remaining processing stations on the screw drive platform.

[0040] Finally, all the unexplained parts of the utility model adopt mature products and mature technical means in the existing technology.

[0041] In the description of this specification, reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in the embodiment or example of the utility model.

[0042] Although embodiments of the utility model have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and intent of the utility model, and that the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A screw drive platform for a bobbin core and case unwinding machine, comprising a base plate, uprights fixed on either side of the base plate, a platform plate slidably connected to the top surface of the uprights, and a robotic arm connected to the platform plate for lifting and lowering; the platform plate's sliding translation direction is defined as the Y direction, the platform plate's extension direction is defined as the X direction, and the robotic arm's extension direction is defined as the Z direction, and the characteristics are: A Y-direction guide rail is fixed on the top surface of the vertical plate, and a Y-direction screw is rotatably connected to the opposite side surfaces of the vertical plate, and a Y-direction motor is fixed at one end of the vertical plate to provide rotational power for the Y-direction screw; The two ends of the bottom surface of the platform plate are slidably buckled on the Y guide rails, the bottom of the platform plate is meshed and sleeved on the Y screw, and the two sides of the top surface of the platform plate are fixed with X guide rails. The middle part of the top surface of the platform plate is rotatably connected to the X screw, and one end of the top surface of the platform plate is fixed with an X motor that provides rotational power to the X screw. The lower back portion of the robotic arm is slidably buckled and mounted on the X-direction guide rail, the middle back portion of the robotic arm is meshedly sleeved on the X-direction screw, the front side wall of the robotic arm is rotatably connected to the Z-direction screw, and the front side wall of the robotic arm is fixedly provided with a Z-direction guide rail, and the top of the robotic arm is fixedly provided with a Z-direction motor that provides rotational power to the Z-direction screw; The Z-direction screw rod is engaged with a mechanical claw that is lifted and lowered to perform the thread end clamping action, and the mechanical claw is slidably buckled on the Z-direction guide rail.

2. The screw drive platform of the bobbin core and bobbin case unwinding machine according to claim 1, characterized in that: The mechanical claw includes a lifting plate, a gripping motor, and two gripping arms; The back sliding buckle of the lifting plate is installed on the Z-direction guide rail and meshed with the Z-direction screw. A clamping motor is fixed on one side of the front of the lifting plate, and the other side of the front of the lifting plate is elastically rotated to connect two clamping arms; the clamping motor provides power for the back-to-back opening action of the two clamping arms.

3. The screw drive platform of the bobbin core and bobbin case unwinding machine according to claim 2, characterized in that: A pin is inserted on one side of the front of the lifting plate, a torsion spring is embedded in the pin, and the outside of the pin is rotatably connected to the clamping arm; the torsion spring provides power for the relative clamping movement of the two clamping arms.

4. The screw drive platform of the bobbin core and bobbin case unwinding machine according to claim 3, characterized in that: A turntable is fixedly provided at the power output end of the clamping motor, and two shift rods are eccentrically fixedly provided on one axial end face of the turntable; the middle part of the clamping arm accommodates the shift rod and has a long hole extending in the Z direction, and the shift rod is supported on the inner wall of the long hole, and the force of the back opening of the two clamping arms is provided as the clamping motor rotates according to the principle of force lever.

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