Spring coiling machine

Abstract

The utility model relates to a spring coiling machine. The spring coiling machine comprises a wire feeding device used for clamping and conveying a steel wire in the horizontal direction; the forming device comprises a forming wheel, the forming wheel comprises a wheel body, the wheel body is arranged on one side of the wire feeding device, a rotating shaft of the wheel body is arranged in the vertical direction, a forming groove is formed in the circumferential direction of the wheel body, and the forming groove corresponds to the output end of the wire feeding device and is used for guiding a steel wire to be rolled into a spiral spring in the direction of the forming groove; and the ejector pin comprises a pin body, and the pin body is arranged at the output end of the forming groove and used for applying external force to the rolled spring so as to change the screw pitch and the shape of the spring. The rotating shaft of the wheel body of the forming wheel is arranged in the vertical direction, so that the formed spring can fall down in the vertical direction, the spring does not need to be steered, and the production efficiency of the spring is improved.

Description

[0001] This application is a divisional application. The original application was entitled "Spring Manufacturing Conveying System", with application number 2024223112316 and application date of September 20, 2014. Technical Field

[0002] This application relates to the field of spring manufacturing technology, and more particularly to a spring coiling machine. Background Technology

[0003] In existing spring manufacturing systems, when the steel wire raw material is horizontally conveyed, the coiled springs are also output horizontally along the same axial direction. Therefore, when conveying the manufactured springs outward, it is often necessary to first turn the springs using a steering system or manually to make the spring axis perpendicular to the conveying surface, and then place the spring ends on the conveying surface before conveying them. This prevents them from rolling or slipping. The process is relatively complex and has low production efficiency. Utility Model Content

[0004] Based on this, this application provides a spring coiling machine that enables the spring to fall vertically when production is complete.

[0005] This application provides a spring coiling machine for coiling steel wire into a spring, comprising: a wire feeding device for clamping and conveying the steel wire in a horizontal direction;

[0006] Molding apparatus, including:

[0007] A forming wheel includes a wheel body, the wheel body being disposed on one side of the wire feeding device, and

[0008] The wheel's axis of rotation is vertically oriented, and the wheel has shaped grooves along its circumference.

[0009] The forming groove corresponds to the output end of the wire feeding device and is used to guide the steel wire to be wound into a spiral spring along the direction of the forming groove;

[0010] A push pin, including a pin body, is disposed at the output end of the forming groove and is used to apply external force to the coiled spring to change the pitch and shape of the spring.

[0011] According to some embodiments of this application, the spring coiling machine further includes a wire cutting device, the wire cutting device comprising:

[0012] A cutter, located at the output end of the wire feeding device, is used to cut the steel wire;

[0013] A cutting drive mechanism, connected to the cutter, is used to drive the cutter to cut the steel wire.

[0014] According to some embodiments of this application, the forming wheel further includes:

[0015] An active mechanism is used to drive the wheel to move horizontally, thereby changing the position and distance of the wheel relative to the wire feeding device. The wheel is rotatably connected to the active mechanism.

[0016] According to some embodiments of this application, the activity mechanism includes:

[0017] Drive motor;

[0018] A transmission mechanism is used to transmit the driving force of the drive motor to the wheel body, so as to drive the wheel body to move relative to the wire feeding device.

[0019] According to some embodiments of this application, the wheel body is capable of reciprocating relative to the conveying direction of the wire feeding device or moving perpendicular to the conveying direction.

[0020] According to some embodiments of this application, the ejector pin further includes:

[0021] A reciprocating drive mechanism, connected to the needle body, is used to drive the needle body to reciprocate in the vertical direction, moving it away from or closer to the forming groove.

[0022] According to some embodiments of this application, the wire feeding device includes:

[0023] The pressure rollers are arranged in pairs, with the rollers positioned vertically and their axes of rotation parallel to each other. When the pressure rollers rotate in opposite directions, they clamp and feed the steel wire in a horizontal direction. At least one of the pressure rollers has a wire-passing groove on its surface, which is used to limit the position of the steel wire.

[0024] According to some embodiments of this application, the wire groove is triangular or arc-shaped.

[0025] According to some embodiments of this application, the wire feeding device further includes:

[0026] A guide is provided at the output end of the pressure roller and has a wire groove. The inlet of the wire groove corresponds to the position of the output end of the pressure roller, and the outlet of the wire groove corresponds to the forming groove. The wire groove is used to guide the direction of the steel wire. The wheel moves horizontally to change the position and distance of the wheel relative to the outlet of the wire groove, thereby changing the diameter of the spring.

[0027] According to some embodiments of this application, at least one of the pressing wheels is connected to a pressing wheel moving mechanism to drive the two pressing wheels arranged in pairs to move away from or towards each other.

[0028] In the spring coiling machine of this application, the shaft of the forming wheel is set in the vertical direction, so that the formed spring can fall in the vertical direction without the need to turn the spring, thereby improving the production efficiency of the spring. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without exceeding the scope of protection claimed by this application.

[0030] Figure 1 This is a schematic diagram of the spring manufacturing conveying system provided in this application;

[0031] Figure 2 This is a schematic diagram of the wire feeding device in the spring manufacturing conveying system provided in this application;

[0032] Figure 3 yes Figure 2 An enlarged view of the structure at point A shown;

[0033] Figure 4 This is a schematic diagram of the forming device in the spring manufacturing conveying system provided in this application;

[0034] Figure 5 This is a schematic diagram of the positioning device in the spring manufacturing conveying system provided in this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Wire feeding device; 11. Wire pressing wheel; 111. Wire guide groove; 12. Guide component; 121. Wire guide groove; 2. Forming device; 21. Forming wheel; 211. Forming groove; 212. Wheel body; 213. Movable mechanism; 22. Ejector pin; 221. Pin body; 222. Reciprocating drive mechanism; 3. Conveying device; 31. Conveyor belt; 32. Magnet; 4. Positioning device; 41. Positioning component; 42. Telescopic drive mechanism; 5. Wire cutting device; 51. Cutting knife. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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 application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] refer to Figure 1 and Figure 5The spring manufacturing conveying system provided in this application includes a spring coiling machine, a conveying device 3, and a positioning device 4. The spring coiling machine is used to coil steel wire into springs; the conveying device 3 is located on one side of the spring coiling machine where the springs are output, and is used to convey the springs; the positioning device 4 includes a positioning element 41, which is located at the output end of the spring coiling machine where the springs are coiled. The coiled spring is fitted onto the positioning element 41, and is used to guide the coiled spring to fall vertically to the designated position on the conveying device 3.

[0041] After the spring coiling machine coils the steel wire into shape, the coiled spring is guided to the conveying device 3 by the positioning device 4 located at the output end. The positioning element 41 is located at the center of the coiled spring and causes the spring to slide down along the positioning element 41 and be conveyed to the conveying surface of the conveying device 3. This allows the produced springs to be continuously output along the spring coiling machine, the positioning device 4, and the conveying device 3 in sequence, without the need for additional processes. This high efficiency and convenience improve production efficiency.

[0042] It should be noted that the positioning element 41 can also be set at any position and angle that can transport the spring to the conveying device 3, and is not limited to being set in the vertical direction, so as to guide the coiled spring to fall vertically to the conveying device 3.

[0043] refer to Figure 5 As an optional implementation, the positioning device 4 further includes a telescopic drive mechanism 42, which is connected to the positioning member 41 and is used to drive the positioning member 41 to extend and retract, so that the free end of the positioning member 41 extends closer to or away from the conveying device 3 to a designated position, and guides the spring.

[0044] As an optional implementation, when the spring is conveyed to the conveying device 3, the telescopic drive mechanism 42 drives the free end of the positioning member 41 to approach the conveying device 3. The distance between the positioning member 41 and the conveying surface of the conveying device 3 is less than the height of the spring, so as to guide the spring to be conveyed to the conveying device 3.

[0045] When the spring reaches the conveying device 3, the free end of the positioning member 41 moves away from the conveying device 3, and the distance between the free end of the positioning member 41 and the conveying surface of the conveying device 3 is greater than the height of the spring, so that the conveying device 3 delivers the spring.

[0046] The spring is guided to a designated position by the positioning device 4. The positioning element 41 is located at the center of the spring after it is rolled. When the spring needs to fall onto the conveyor belt for transport, the telescopic drive mechanism 42 drives the positioning element 41 to extend and approach the conveyor device 3. The distance between the positioning element 41 and the conveying surface of the conveyor device 3 is less than the height of the spring. The spring slides down along the positioning element 41 and is transported to the surface of the conveyor device 3. After the spring is stably placed on the conveying surface of the conveyor device 3, the telescopic drive mechanism 42 drives the positioning element 41 to retract and disengage from the spring placed on the conveying surface of the conveyor device 3. The distance between the free end of the positioning element 41 and the conveying surface of the conveyor device 3 is greater than the height of the spring, so that the conveyor device 3 delivers the spring. In this way, the positioning element 41 is guided up and down by the telescopic drive mechanism 42 to achieve faster, smoother, and continuous and orderly transport and guidance of the spring to the conveyor device 3.

[0047] refer to Figures 1-3 As an optional implementation, the spring coiling machine includes a wire feeding device 1, a forming device 2, and a wire cutting device 5. The wire feeding device 1 is used to clamp and feed the steel wire. The forming device 2 includes a forming wheel 21 and a pin 22. The forming wheel 21 is located on one side of the wire feeding device 1 and has a forming groove 211 corresponding to the output end of the wire feeding device 1, used to guide the steel wire to be coiled into a spiral spring along the direction of the forming groove 211. The pin 22 is located at the output end of the forming groove 211 and is used to apply external force to the coiled spring to change the spring's pitch and shape. The wire cutting device 5 includes a cutter 51 and a cutting drive mechanism (not shown in the figure). The cutter 51 is located at the output end of the wire feeding device 1 and is used to cut the steel wire. The cutting drive mechanism is connected to the cutter 51 and is used to drive the cutter 51 to move and cut the steel wire.

[0048] The raw steel wire, clamped and transported by the wire feeding device 1, moves along the conveying direction to the output end of the wire feeding device 1 and is fed into the forming groove 211 of the forming device 2, where it abuts and contacts the inner wall of the forming groove 211. Under the action of the inner wall of the forming groove 211, the raw steel wire gradually bends and deforms along the direction of the forming groove 211, and is pushed out from the output end of the forming groove 211 under the transmission action of the wire feeding device 1 to form a spring. Then, the ejector pin 22 acts on the surface of the spring pushed out from the output end, changing its direction and position relative to the forming groove 211, thereby changing the pitch and shape of the spring to finally obtain the desired spring. The forming groove 211 of the forming wheel 21 can be set to the desired spring output angle. By guiding and restricting the deformation direction of the raw steel wire through the forming wheel 21 with the forming groove 211, the produced spring can naturally turn and be output along the direction of the forming groove 211. The wire is cut by the wire cutting device 5. During cutting, the cutting drive mechanism drives the cutter 51 to swing and act on the wire. The cutting drive mechanism may include a drive motor and a crank-slider mechanism, through which the driving force of the drive motor is transmitted to the cutter 51.

[0049] refer to Figure 4 As an optional implementation, the forming wheel 21 includes a wheel body 212 and a movable mechanism 213. The wheel body 212 is rotatably mounted on the movable mechanism 213, and a forming groove 211 is disposed circumferentially on the wheel body 212. The input end of the forming groove 211 corresponds to the output end of the wire feeding device 1. This ensures that the steel wire accurately enters the forming groove 211 when output from the wire feeding device 1, preventing spring winding failure due to wire misalignment. The movable mechanism 213 is connected to the wheel body 212 and drives the wheel body 212 to translate, changing the position and distance of the wheel body 212 relative to the wire feeding device 1, thereby changing the diameter and curvature of the spring. The impact force of the steel wire causes the wheel body 212 to rotate, so that the forming groove 211 continuously receives the steel wire during rotation. The rotating wheel body 212 forces the steel wire to bend for winding.

[0050] In some embodiments, the movable mechanism 213 includes a drive motor and a transmission mechanism. The transmission mechanism may be a crank-slider mechanism or a crank-rocker mechanism, which transmits the driving force of the drive motor to the wheel 212 to drive the wheel 212 to move relative to the wire feeding device 1, such as reciprocating relative to the conveying direction of the wire feeding device 1 or moving perpendicular to the conveying direction.

[0051] refer to Figure 4 As an optional implementation, the ejector pin 22 includes a pin body 221 and a reciprocating drive mechanism 222. The pin body 221 is disposed at the output end of the forming groove 211. The reciprocating drive mechanism 222 is connected to the pin body 221 and is used to drive the pin body 221 away from or towards the forming groove 211.

[0052] The needle body 221 reciprocates vertically under the drive of the reciprocating drive mechanism 222. Depending on manufacturing requirements, the ejector pin 22 can be positioned relative to the forming wheel 21 at any angle or position to act on the surface of the bent spring formed by the coiled steel wire. During the spring coiling process, after the steel wire bends through the forming groove 211 on the forming wheel 21, the ejector pin 22 pushes the spring wire to change the spring pitch, thereby coiling it into a spring of a specified shape. It can also adjust the output direction and angle after the spring is manufactured.

[0053] refer to Figure 2 As an optional implementation, the wire feeding device 1 includes a pair of pressure rollers 11 arranged vertically, with their shafts parallel to each other. Both pressure rollers 11 rotate in the conveying direction, i.e., when rotating in opposite directions, they clamp and feed the steel wire in a horizontal direction. The opposing forces generated by the paired pressure rollers 11 on the steel wire clamp the wire, facilitating its conveying.

[0054] As an optional implementation, at least one pressure roller 11 has a wire groove 111 on its surface, which is used to limit the position of the steel wire.

[0055] As an optional implementation, the through groove 111 is triangular or arc-shaped.

[0056] By using the wire groove 111, the contact area between the steel wire and the pressure wheel 11 during the conveying process is increased, while the steel wire is guided and limited, making the transmission more stable and preventing the steel wire from deviating or falling off during the conveying process.

[0057] In some embodiments, at least one pressure roller 11 is connected to a pressure roller moving mechanism to move the two paired pressure rollers 11 away from or towards each other to clamp or release the wire. The pressure roller moving mechanism may be a cylinder or a spring telescopic mechanism, etc.

[0058] refer to Figure 2 As an optional embodiment, the wire feeding device 1 further includes a guide member 12, which is disposed at the output end of the pressure roller 11 and has a wire guide groove 121. The inlet of the wire guide groove 121 corresponds to the position of the output end of the pressure roller 11, and the outlet of the wire guide groove 121 corresponds to the input end of the forming groove 211. The wire guide groove 121 is used to guide the direction of the raw material. This improves the accuracy of the position of the raw material during the conveying process and enhances the continuity and reliability of the spring in the automated production process.

[0059] refer to Figure 1As an optional implementation, the conveying device 3 includes a conveyor belt 31 and a magnet 32. The conveyor belt 31 is disposed on one side of the output spring of the forming device 2, and is used to convey the spring by moving it in the transmission direction of the conveyor belt 31. The magnet 32 ​​is disposed on the conveying surface of the conveyor belt 31, and is used to attract the spring.

[0060] The manufactured springs are conveyed along the transmission direction of the conveyor belt 31 in the conveying device 3. A magnet 32 ​​is disposed on the conveying surface of the conveyor belt 31 to ensure that the springs are firmly attached to the surface of the conveyor belt 31, thus ensuring smooth conveying.

[0061] In some embodiments, the magnet 32 ​​may be disposed at any position that allows the spring to adhere to the conveying surface of the conveyor belt 31. For example, the magnet 32 ​​may be disposed in the interlayer on the side of the conveyor belt 31 opposite to the conveying surface, or it may be disposed directly on the surface of the conveying surface of the conveyor belt 31.

[0062] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

[0063] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the technical solutions and core ideas of this application. Therefore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. In summary, the content of this specification should not be construed as a limitation of this application.

Claims

1. A spring coiling machine for coiling steel wire into springs, characterized in that, include: A wire feeding device for clamping and conveying the steel wire in a horizontal direction; Molding apparatus, including: A forming wheel includes a wheel body, which is disposed on one side of the wire feeding device, and the shaft of the wheel body is arranged in a vertical direction. A forming groove is provided around the wheel body, and the forming groove corresponds to the output end of the wire feeding device, for guiding the steel wire to be wound into a spiral spring along the direction of the forming groove. A push pin, including a pin body, is disposed at the output end of the forming groove and is used to apply external force to the coiled spring to change the pitch and shape of the spring.

2. The spring coiling machine according to claim 1, characterized in that, It also includes a wire-cutting device, which comprises: A cutter, located at the output end of the wire feeding device, is used to cut the steel wire; A cutting drive mechanism, connected to the cutter, is used to drive the cutter to cut the steel wire.

3. The spring coiling machine according to claim 1, characterized in that, The forming wheel also includes: An active mechanism is used to drive the wheel to move horizontally, thereby changing the position and distance of the wheel relative to the wire feeding device. The wheel is rotatably connected to the active mechanism.

4. The spring coiling machine according to claim 3, characterized in that, The organizations involved in the activities include: Drive motor; A transmission mechanism is used to transmit the driving force of the drive motor to the wheel body, so as to drive the wheel body to move relative to the wire feeding device.

5. The spring coiling machine according to claim 3, characterized in that, The wheel can reciprocate relative to the conveying direction of the wire feeding device or move perpendicular to the conveying direction.

6. The spring coiling machine according to claim 1, characterized in that, The ejector pin also includes: A reciprocating drive mechanism, connected to the needle body, is used to drive the needle body to reciprocate in the vertical direction, moving it away from or closer to the forming groove.

7. The spring coiling machine according to claim 1, characterized in that, The wire feeding device includes: The pressure rollers are arranged in pairs, with the rollers positioned vertically and their axes of rotation parallel to each other. When the pressure rollers rotate in opposite directions, they clamp and feed the steel wire in a horizontal direction. At least one of the pressure rollers has a wire-passing groove on its surface, which is used to limit the position of the steel wire.

8. The spring coiling machine according to claim 7, characterized in that, The wire groove is triangular or arc-shaped.

9. The spring coiling machine according to claim 7, characterized in that, The wire feeding device further includes: A guide is provided at the output end of the pressure roller and has a wire groove. The inlet of the wire groove corresponds to the position of the output end of the pressure roller, and the outlet of the wire groove corresponds to the forming groove. The wire groove is used to guide the direction of the steel wire. The wheel moves horizontally to change the position and distance of the wheel relative to the outlet of the wire groove, thereby changing the diameter of the spring.

10. The spring coiling machine according to claim 7, characterized in that, At least one of the pressing wheels is connected to a pressing wheel moving mechanism to move the two pressing wheels in a pair away from or towards each other.

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