A high-speed double-wire spring winding machine head

Abstract

The present invention relates to a high-speed double-wire spring winding machine head, comprising a spring forming wheel, a wire feed guide, a cutter, a top pressure device and a wire feeding device; the wire feeding device comprises a driven wheel group and an active wire feeding wheel; the driven wheel group comprises an inner driven wheel and an outer driven wheel; the inner driven wheel and the outer driven wheel are axially concentric, and the inner driven wheel and the outer driven wheel are arranged side by side; the top pressure device controls the lifting or lowering of the inner driven wheel and the outer driven wheel; the spring forming wheel is arranged on one side of the wire feeding device; the wire feed guide and the cutter are arranged between the spring forming wheel and the wire feeding device. The present invention can optimize the structure of the overall device, making the structure more compact, the active wire feeding wheel cooperates with the inner driven wheel and the outer driven wheel respectively, and the power is transmitted by gears at the same time, and the entire device can be driven by an external power source, saving power.

Description

Technical Field

[0001] The invention relates to the technical field of spring-binding machines, and in particular to a high-speed double-wire spring winding machine head. Background Art

[0002] The spring is made of manganese steel wire that is bent and deformed by a guide wheel. After being processed to a certain size, the manganese steel wire is cut to complete the spring production process. When producing springs with different wire diameters, manganese steel wires of different diameters are required. Therefore, different wire supply guide wheels are required to supply and transport manganese steel wires of corresponding diameters. Existing equipment mostly uses different drive mechanisms to drive different wire supply guide wheels, which has a complex structure and requires multiple sets of power, making it inconvenient to control. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the prior art and provide a high-speed double-wire spring winding machine head that can flexibly switch between production processes of different types of springs.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A high-speed double-wire spring winding machine head, comprising a spring forming wheel, a wire feed guide, a cutter, a top pressing device and a wire feeding device;

[0006] The wire feeding device comprises a driven wheel group and a driving wire feeding wheel; the driven wheel group comprises an inner driven wheel and an outer driven wheel;

[0007] The inner driven wheel and the outer driven wheel are axially concentric and arranged side by side; the top pressure device controls the lifting or lowering of the inner driven wheel and the outer driven wheel; the axial direction of the active wire feeding wheel is arranged parallel to the axial direction of the driven wheel group; the active wire feeding wheel and the inner driven wheel or the outer driven wheel rotate in opposite directions to convey steel wires of different wire diameters; the spring forming wheel is arranged on one side of the wire feeding device; the wire feed guide and the cutter are arranged between the spring forming wheel and the wire feeding device.

[0008] Further explanation, the wire feeding device also includes an inner driven wheel transmission shaft, an outer driven wheel transmission shaft and a driving wire feeding wheel transmission shaft;

[0009] The inner driven wheel is connected to the inner driven wheel transmission shaft, the outer driven wheel is connected to the outer driven wheel transmission shaft, the inner driven wheel transmission shaft and the outer driven wheel transmission shaft are respectively arranged on the same side of the inner driven wheel and the outer driven wheel; the outer driven wheel transmission shaft is a hollow structure, the outer driven wheel transmission shaft sleeve is on the outside of the inner driven wheel transmission shaft, and there is a gap between the outer driven wheel transmission shaft and the inner driven wheel transmission shaft; the active wire feeding wheel is connected to the active wire feeding wheel transmission shaft.

[0010] Further explanation, the wire inlet guide is provided with two wire inlet channels which penetrate the wire inlet guide transversely, the wire inlet channel is provided with a wire inlet port facing the wire feeding device, and the wire inlet channel is provided with a wire outlet port facing the spring forming wheel; the two wire inlet channels are straight lines and are distributed in eccentric surfaces inside the wire inlet guide; the two wire inlets are arranged horizontally, and the two wire outlets are arranged vertically.

[0011] To further explain, the inner diameters of the two wire inlet channels are respectively adapted to the outer diameters of the corresponding steel wires passing therethrough.

[0012] Further explanation, the wire feed guide is provided with a first gap portion and a second gap portion on the side facing the wire feeding device; the first gap portion and the second gap portion are both arc surfaces, the curvature of the arc surface of the first gap portion is adapted to the curvature of the driven wheel group, and the curvature of the arc surface of the second gap portion is adapted to the curvature of the active wire feeding wheel; the driven wheel group is arranged at the first gap portion, the active wire feeding line is arranged at the second gap portion, and the wire feed port faces the gap between the driven wheel group and the active wire feeding wheel.

[0013] To further explain, the pressing device includes a fixed plate, an outer lifting shaft and an inner lifting shaft, and the outer lifting shaft and the inner lifting shaft are both arranged on the fixed plate; the outer lifting shaft and the inner lifting shaft move up and down on the fixed plate; the driven wheel group also includes an inner bearing support plate and an outer bearing support plate; the inner bearing support plate supports the inner driven wheel transmission shaft, and the outer bearing support plate supports the outer driven wheel rotating shaft; the outer lifting shaft is connected to the outer bearing support plate, and the inner lifting shaft is connected to the inner bearing support plate.

[0014] To further explain, the active wire feeding wheel, the inner driven wheel and the outer driven wheel are all provided with wire transmission grooves, the active wire feeding wheel is provided with a plurality of wire transmission grooves, the wire transmission grooves on the active wire feeding wheel are respectively arranged corresponding to the wire transmission grooves on the inner driven wheel and the outer driven wheel; the width of the wire transmission groove corresponding to the active wire feeding wheel and the inner driven wheel is consistent, and the width of the wire transmission groove corresponding to the active wire feeding wheel and the outer driven wheel is consistent; the width of the wire transmission groove corresponding to the active wire feeding wheel and the inner driven wheel and the width of the wire transmission groove corresponding to the active wire feeding wheel and the outer driven wheel are respectively adapted to the wire diameter of the correspondingly transported steel wire.

[0015] Further description, it also includes a slide rail; the slide rail is arranged in a vertical direction, the spring-formed wheel is arranged on the slide rail, and the spring-formed wheel moves up and down along the slide rail under the drive of external force.

[0016] To further explain, the inner driven wheel transmission shaft is connected to the first gear, the outer driven wheel transmission shaft is connected to the second gear, and the active wire feeding wheel transmission shaft is connected to the third gear and the fourth gear; the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear.

[0017] The beneficial effects of the present invention are as follows: the structure of the overall device can be optimized to make the structure more compact; the active wire feeding wheel cooperates with the inner driven wheel and the outer driven wheel respectively, and the power is transmitted by gears at the same time; the entire device can be driven by an external power source, saving power. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 3 is a structural schematic diagram of a wire feed guide member according to an embodiment of the present invention;

[0022] Figure 4 It is a schematic structural diagram of a wire feed guide member according to an embodiment of the present invention.

[0023] Among them: spring forming wheel 1, wire feed guide 2, wire feed channel 21, wire feed port 211, wire outlet port 212, first avoidance portion 22, second avoidance portion 23, cutter 3, pressing device 4, fixing plate 41, outer lifting shaft 42, inner lifting shaft 43, wire feeding device 01 (shown in dotted box), driven wheel group 02, inner driven wheel 5, inner driven wheel transmission shaft 6, outer driven wheel 7, active wire feeding wheel transmission shaft 8, active wire feeding wheel 9, outer driven wheel transmission shaft 10, first manganese steel wire 03, second manganese steel wire 04, inner bearing support plate 05, outer bearing support plate 06, slide rail 07, first gear 061, second gear 0101, third gear 082 and fourth gear 081. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] like Figure 1-Figure 4 As shown, a high-speed double-wire spring winding machine head includes a spring forming wheel 1, a wire feed guide 2, a cutter 3, a top pressing device 4 and a wire feeding device 01;

[0026] The wire feeding device 01 includes a driven wheel group 02 and a driving wire feeding wheel 9; the driven wheel group 02 includes an inner driven wheel 5 and an outer driven wheel 7;

[0027] The inner driven wheel 5 and the outer driven wheel 7 are axially concentric and arranged side by side; the pressing device 4 controls the lifting or lowering of the inner driven wheel 5 and the outer driven wheel 7; the axial direction of the active wire feeding wheel 9 is arranged parallel to the axial direction of the driven wheel group 02; the active wire feeding wheel 9 rotates in opposite directions with the inner driven wheel 5 or the outer driven wheel 7 to convey steel wires of different wire diameters; the spring forming wheel 1 is arranged on one side of the wire feeding device 01; the wire feed guide 2 and the cutter 3 are arranged between the spring forming wheel 1 and the wire feeding device 01.

[0028] The wire feeding device 01 conveys the manganese steel wire forward, and the manganese steel wire is guided by the wire feed guide 2, and then conveyed to the spring forming wheel 1, and bent and formed on one side of the spring forming wheel 1. The driven wheel group 02 and the active wire feeding wheel 9 jointly convey the manganese steel wire used to make the spring, wherein the inner driven wheel 5 and the outer driven wheel 7 are used to convey the first manganese steel wire 03 and the second manganese steel wire 04 of different wire diameters. When the inner driven wheel 5 is used to convey the first manganese steel wire 03, the top pressure device 4 presses down the inner driven wheel 5 and lifts the outer driven wheel 7, so that the inner driven wheel 5 and the active wire feeding wheel 9 can roll and convey the first manganese steel wire 03, and keep a certain distance between the outer driven wheel 7 and the active wire feeding wheel 9. Similarly, when the outer driven wheel 7 is used to convey the second manganese steel wire 04, the top pressure device 4 presses down the outer driven wheel 7 and lifts the inner driven wheel 5, so that the outer driven wheel 7 and the active wire feeding wheel 9 roll and convey the second manganese steel wire 04. Since the inner driven wheel 5 and the outer driven wheel 7 are axially concentrically arranged side by side, the structure of the spring winding machine head is more compact and space-saving, and the distance between the pressing device 4 and the inner driven wheel 5 and the outer driven wheel 7 is smaller, which makes it more convenient to press down or lift the inner driven wheel 5 and the outer driven wheel 7.

[0029] To further illustrate, the wire feeding device 01 also includes an inner driven wheel transmission shaft 6, an outer driven wheel transmission shaft 10 and an active wire feeding wheel transmission shaft 8;

[0030] The inner driven wheel 5 is connected to the inner driven wheel transmission shaft 6, and the outer driven wheel 7 is connected to the outer driven wheel transmission shaft 10. The inner driven wheel transmission shaft 6 and the outer driven wheel transmission shaft 10 are respectively arranged on the same side of the inner driven wheel 5 and the outer driven wheel 7; the outer driven wheel transmission shaft 10 is a hollow structure, the outer driven wheel transmission shaft 10 is sleeved on the outside of the inner driven wheel transmission shaft 6, and there is a gap between the outer driven wheel transmission shaft 10 and the inner driven wheel transmission shaft 6; the active wire feeding wheel 9 is connected to the active wire feeding wheel transmission shaft 8.

[0031] Since the outer driven wheel transmission shaft 10 and the inner driven wheel transmission shaft 6 are arranged on the same side of the outer driven wheel 7 and the inner driven wheel 5, and the outer driven wheel transmission shaft 10 is sleeved on the outer side of the inner driven wheel transmission shaft 6, the outer driven wheel transmission shaft 10 and the inner driven wheel transmission shaft 6 can be driven by an external power, thereby reducing the setting of the external power and simplifying the overall structure of the spring winding machine. The outer driven wheel transmission shaft 10 and the inner driven wheel transmission shaft 6 are arranged at intervals, and when the pressing device 4 lifts or presses the outer driven wheel 7 or the inner driven wheel 5, there will be no collision interference between the outer driven wheel transmission shaft 10 and the inner driven wheel rotating shaft 6 that move up and down together.

[0032] To further explain, the wire inlet guide 2 is provided with two wire inlet channels 21 which penetrate the wire inlet guide 2 transversely, the wire inlet channel 21 is provided with a wire inlet port 211 facing the wire feeding device 01, and the wire inlet channel 21 is provided with a wire outlet port 212 facing the spring forming wheel 1; the two wire inlet channels 21 are straight lines and are distributed in eccentric surfaces inside the wire inlet guide 2; the two wire inlet ports 211 are arranged horizontally, and the two wire outlet ports 212 are arranged vertically.

[0033] Since the inner driven wheel 5 and the outer driven wheel 7 are arranged side by side, there is a certain interval in the horizontal direction between the first manganese steel wire 03 and the second manganese steel wire 04 being transported. After the first manganese steel wire 03 and the second manganese steel wire 04 pass through the wire guide 2, the interval in the horizontal direction is changed to the interval in the vertical direction. Therefore, the spring forming wheel 1 can also realize the spring forming process when the width is narrow. Such a design can keep the size of the spring forming wheel 1 small, saving the cost of making the spring forming wheel 1.

[0034] To further explain, the inner diameters of the two wire inlet channels 21 are respectively adapted to the outer diameters of the corresponding steel wires passing therethrough.

[0035] Since the wire inlet channel 21 is used to transport the first manganese steel wire 03 and the second manganese steel wire 04 respectively, the inner diameters of the two wire inlet channels 21 are respectively adapted to the outer diameters of the corresponding steel wires passing therethrough, so that when the first manganese steel wire 03 and the second manganese steel wire 04 pass through the corresponding wire inlet channel 21, they have a better guiding effect without causing a large friction resistance to the manganese steel wires.

[0036] To further explain, the wire feed guide 2 is provided with a first avoidance portion 22 and a second avoidance portion 23 on the side facing the wire feeding device 01; the first avoidance portion 22 and the second avoidance portion 23 are both arc surfaces, the curvature of the arc surface of the first avoidance portion 22 is adapted to the curvature of the driven wheel group 02, and the curvature of the arc surface of the second avoidance portion 23 is adapted to the curvature of the active wire feeding wheel 9; the driven wheel group 02 is arranged at the first avoidance portion 22, the active wire feeding line is arranged at the second avoidance portion 23, and the wire feed port 211 faces the gap between the driven wheel group 02 and the active wire feeding wheel 9.

[0037] In the actual production process, the outer driven wheel 7 or the inner driven wheel 5 is approximately tangent to the active wire feeding wheel 9, and the manganese steel wire is fed out from the tangent point. Therefore, the position of the wire inlet 211 of the wire inlet guide 2 is as close to the tangent point as possible, so that the manganese steel wire can enter the wire inlet channel 21 conveniently. The first avoidance portion 22 and the second avoidance portion 23 provide accommodation space for the driven wheel group 02 and the active wire feeding wheel 9, respectively, so that the wire inlet 211 will not interfere with the operation of the driven wheel group 02 and the active wire feeding wheel 9 when it is very close to the wire feeding device 01.

[0038] To further explain, the pressing device 4 includes a fixed plate 41, an outer lifting shaft 42 and an inner lifting shaft 43, and the outer lifting shaft 42 and the inner lifting shaft 43 are both arranged on the fixed plate 41; the outer lifting shaft 42 and the inner lifting shaft 43 move up and down on the fixed plate 41; the driven wheel group 02 also includes an inner bearing support plate 05 and an outer bearing support plate 06; the inner bearing support plate 05 supports the inner driven wheel transmission shaft 6, and the outer bearing support plate 06 supports the outer driven wheel 7 rotating shaft; the outer lifting shaft 42 is connected to the outer bearing support plate 06, and the inner lifting shaft 43 is connected to the inner bearing support plate 05.

[0039] The pressing device 4 controls the outer driven wheel 7 and the inner driven wheel 5 by pressing or lifting the inner bearing support plate 05 and the outer bearing support plate 06. It is simple and easy to lift or press the outer driven wheel 7 and the inner driven wheel 5 without affecting the rotation.

[0040] To further explain, the active wire feeding wheel 9, the inner driven wheel 5 and the outer driven wheel 7 are all provided with wire transmission grooves, and the active wire feeding wheel 9 is provided with a plurality of wire transmission grooves, and the wire transmission grooves on the active wire feeding wheel 9 are respectively arranged corresponding to the wire transmission grooves on the inner driven wheel 5 and the outer driven wheel 7; the width of the wire transmission groove corresponding to the active wire feeding wheel 9 and the inner driven wheel 5 is consistent, and the width of the wire transmission groove corresponding to the active wire feeding wheel 9 and the outer driven wheel 7 is consistent; the width of the wire transmission groove corresponding to the active wire feeding wheel 9 and the inner driven wheel 5 and the width of the wire transmission groove corresponding to the active wire feeding wheel 9 and the outer driven wheel 7 are respectively adapted to the wire diameter of the correspondingly transported steel wire.

[0041] The wire conveying groove can clamp the manganese steel wire for easy transportation. The wire conveying groove corresponding to the active wire feeding wheel 9 and the inner driven wheel 5 clamps the first manganese steel wire 03, and the wire conveying groove corresponding to the active wire feeding wheel 9 and the outer driven wheel 7 clamps the second manganese steel wire 04, ensuring a good clamping effect.

[0042] Further description, it also includes a slide rail 07; the slide rail 07 is arranged in the vertical direction, the spring forming wheel 1 is arranged on the slide rail 07, and the spring forming wheel 1 moves up and down along the slide rail 07 under the driving of external force.

[0043] Since the wire-in guide 2 transforms the first manganese steel wire 03 and the second manganese steel wire 04 from a horizontal direction to a vertical direction, the spring forming wheel 1 needs to move up and down to match the positions of the two wire outlets 212 to process and form the spring.

[0044] The inner driven wheel transmission shaft 6 is connected to the first gear 061, the outer driven wheel transmission shaft 10 is connected to the second gear 0101, and the active wire feeding wheel transmission shaft 8 is connected to the third gear 082 and the fourth gear 081; the third gear 082 is meshed with the first gear 061, and the fourth gear 081 is meshed with the second gear 0101.

[0045] Only the active wire feeding wheel transmission shaft 8 is connected to the external power, and the power is transmitted through the first gear 061, the second gear 0101, the third gear 082 and the fourth gear 081, so that the outer driven wheel transmission shaft 10 and the inner driven wheel transmission shaft 6 rotate together, so that the outer driven wheel 7, the inner driven wheel 5 and the active wire feeding wheel 9 are all driven by the rotating shaft to rotate, which provides more power when conveying manganese steel wire, and also saves the amount of external power, thereby optimizing the layout of the overall equipment.

[0046] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A high-speed double-wire spring winding machine head, characterized in that: It includes a spring forming wheel, a wire feeding guide, a cutter, a top pressing device and a wire feeding device; The wire feeding device comprises a driven wheel group and a driving wire feeding wheel; the driven wheel group comprises an inner driven wheel and an outer driven wheel; The inner driven wheel and the outer driven wheel are axially concentric and arranged side by side; the pressing device controls the lifting or lowering of the inner driven wheel and the outer driven wheel, and when one of the inner driven wheel and the outer driven wheel is lowered to cooperate with the active wire feeding wheel, the other is lifted to break away from the cooperation with the active wire feeding wheel; the axial direction of the active wire feeding wheel is arranged parallel to the axial direction of the driven wheel group; the active wire feeding wheel rotates in opposite directions with the inner driven wheel or the outer driven wheel to convey steel wires of different wire diameters; the spring forming wheel is arranged on one side of the wire feeding device; the wire feed guide and the cutter are arranged between the spring forming wheel and the wire feeding device; The wire feeding device also includes an inner driven wheel transmission shaft, an outer driven wheel transmission shaft and an active wire feeding wheel transmission shaft; The inner driven wheel is connected to the inner driven wheel transmission shaft, the outer driven wheel is connected to the outer driven wheel transmission shaft, the inner driven wheel transmission shaft and the outer driven wheel transmission shaft are respectively arranged on the same side of the inner driven wheel and the outer driven wheel; the outer driven wheel transmission shaft is a hollow structure, the outer driven wheel transmission shaft sleeve is on the outside of the inner driven wheel transmission shaft, and there is a gap between the outer driven wheel transmission shaft and the inner driven wheel transmission shaft; the active wire feeding wheel is connected to the active wire feeding wheel transmission shaft; the outer driven wheel transmission shaft and the inner driven wheel transmission shaft are driven by an external power.

2. The high-speed double-wire spring winding machine head according to claim 1, characterized in that: The wire inlet guide is provided with two wire inlet channels which penetrate the wire inlet guide laterally, the wire inlet channel is provided with a wire inlet port facing the wire feeding device, and the wire inlet channel is provided with a wire outlet port facing the spring forming wheel; the two wire inlet channels are straight lines and are distributed in eccentric surfaces inside the wire inlet guide; the two wire inlets are arranged horizontally, and the two wire outlets are arranged vertically.

3. The high-speed double-wire spring winding machine head according to claim 2, characterized in that: The inner diameters of the two wire inlet channels are respectively adapted to the outer diameters of the corresponding steel wires passing therethrough.

4. The high-speed double-wire spring winding machine head according to claim 2, characterized in that: The first and second clearance parts are provided on the side of the wire feed guide member facing the wire feeding device; the first and second clearance parts are both arcuate surfaces, the curvature of the arcuate surface of the first clearance part is adapted to the curvature of the driven wheel set, and the curvature of the arcuate surface of the second clearance part is adapted to the curvature of the active wire feeding wheel; The driven wheel group is arranged at the first space-avoiding portion, the active wire feeding wheel is arranged at the second space-avoiding portion, and the wire inlet faces the gap between the driven wheel group and the active wire feeding wheel.

5. The high-speed double-wire spring winding machine head according to claim 1, characterized in that: The pressing device includes a fixed plate, an outer lifting shaft and an inner lifting shaft, and the outer lifting shaft and the inner lifting shaft are both arranged on the fixed plate; the outer lifting shaft and the inner lifting shaft move up and down on the fixed plate; the driven wheel group also includes an inner bearing support plate and an outer bearing support plate; the inner bearing support plate supports the inner driven wheel transmission shaft, and the outer bearing support plate supports the outer driven wheel rotating shaft; the outer lifting shaft is connected to the outer bearing support plate, and the inner lifting shaft is connected to the inner bearing support plate.

6. The high-speed double-wire spring winding machine head according to claim 1, characterized in that: The active wire feeding wheel, the inner driven wheel and the outer driven wheel are all provided with wire transmission grooves. The active wire feeding wheel is provided with a plurality of wire transmission grooves. The wire transmission grooves on the active wire feeding wheel are respectively arranged corresponding to the wire transmission grooves on the inner driven wheel and the outer driven wheel; the width of the wire transmission grooves corresponding to the active wire feeding wheel and the inner driven wheel is consistent, and the width of the wire transmission grooves corresponding to the active wire feeding wheel and the outer driven wheel is consistent; The width of the wire conveying groove corresponding to the active wire feeding wheel and the inner driven wheel and the width of the wire conveying groove corresponding to the active wire feeding wheel and the outer driven wheel are respectively adapted to the wire diameter of the corresponding steel wire being conveyed.

7. The high-speed double-wire spring winding machine head according to claim 2, characterized in that: It also includes a slide rail; the slide rail is arranged in a vertical direction, the spring-formed wheel is arranged on the slide rail, and the spring-formed wheel moves up and down along the slide rail under the driving of an external force.

8. The high-speed double-wire spring winding machine head according to claim 1, characterized in that: The inner driven wheel transmission shaft is connected to the first gear, the outer driven wheel transmission shaft is connected to the second gear, the active wire feeding wheel transmission shaft is connected to the third gear and the fourth gear; the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear.

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