Coil spring supply device

The coil spring supply device addresses the risk of deformation by using a kicking mechanism with a kick-back member and elastic force to untangle and supply individual coil springs efficiently.

JP2026063613APending Publication Date: 2026-04-13ALMEC INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
ALMEC INC
Filing Date
2024-10-01
Publication Date
2026-04-13

AI Technical Summary

Technical Problem

Conventional coil spring supply devices risk deforming coil springs due to the rotating plate hitting the lateral side of tangled coil springs, leading to separation issues.

Method used

A coil spring supply device with a rotatable container, blade material, conveyor, kicking mechanism, and collision surface, featuring a kick-back member with a notch and elastic body to straighten and kick tangled coil springs upstream, using a hooking member and elastic force to untangle and supply individual springs.

Benefits of technology

The device effectively untangles and supplies individual coil springs without deformation by applying the kicking mechanism straight to the longitudinal end, reducing friction and wear, and enhancing durability.

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Abstract

To provide a coil spring supply device that can separate and supply tangled coil springs into individual coil springs without deforming the coil springs. [Solution] A coil spring supply device 10 comprising: a rotatable container 11 for housing multiple coil springs C; three blades 12 provided on the inner surface of the container 11 for scooping up the multiple coil springs C; a conveyor 13 for receiving the coil springs C that are scooped up and fall by the blades 12 and transporting them downstream; a kicking mechanism 14 provided for kicking back only the tangled coil springs C on the conveyor 13 in an upstream direction; and a collision surface 15 for causing the tangled coil springs C kicked back by the kicking mechanism 14 to collide.
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Description

Technical Field

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[0001] The present invention relates to a coil spring supply device.

Background Art

[0002] As a conventional technique, there is a coil spring supply device having a cylindrical container capable of storing a plurality of coil springs, a driving means for rotating the container, a plurality of blade members provided for scraping up the coil springs on the inner peripheral surface of the container, a conveyor for receiving and conveying the coil springs scraped up and dropped by the blade members, a rotating plate rotating in the upstream direction provided with a notch having a shape through which one coil spring can pass but a tangled coil spring cannot pass, and a collision surface provided for colliding with the coil springs bounced upstream of the conveyor when hitting the rotating plate (see, for example, Patent Document 1).

[0003] The conventional coil spring supply device repeatedly jumps only the tangled coil springs in the upstream direction of the conveyor by the rotational force of the rotating plate, collides them with the collision surface, separates the tangled coil springs into individual coil springs, and drops them one by one to supply the coil springs one by one. However, in the conventional coil spring supply device, the rotating plate may hit the lateral side in the longitudinal direction of the tangled coil spring, so there is a risk that the coil spring may be deformed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention aims to solve the above problems by providing a coil spring supply device that can separate and supply tangled coil springs into individual coil springs without deforming the coil springs. [Means for solving the problem]

[0006] The first means of solving the problem of the present invention is a coil spring supply device having a rotatable container for housing a plurality of coil springs, a blade material provided on the inner circumferential surface of the container for scooping up the plurality of coil springs housed in the container, a conveyor for receiving the coil springs that are scooped up and fall by the blade material and transporting them downstream, a kicking means provided for kicking back only the tangled coil springs on the conveyor in an upstream direction, and a collision surface for colliding with the tangled coil springs kicked back by the kicking means, wherein the kicking means allows one coil spring to pass, but tangled coil springs The device comprises a kick-back member provided with a notch shaped to prevent the coil spring from passing through, which is movable in the upstream and downstream directions; an elastic body provided behind the kick-back member; an elastic body stopper provided behind the elastic body; a rotating body provided near the kick-back member so as to be rotatable vertically; and a hooking member provided on the outer circumference of the rotating body. By hooking the hooking member onto a part of the kick-back member and then releasing the hook, the elastic force of the elastic body is used to bring the kick-back member straight against the longitudinal end of the entangled coil spring, thereby kicking only the entangled coil spring upstream of the conveyor. In this invention, the entangled coil spring refers to a coil spring in which parts of two or more coil springs overlap and become entangled.

[0007] The second means for solving the problem of the present invention is a coil spring supply device of the first means for solving the problem, characterized in that a stopper is provided for stopping the movement of the kick-back member.

[0008] A third solution to the problem of the present invention is a coil spring supply device having a rotatable container for housing a plurality of coil springs, a blade material provided on the inner circumferential surface of the container for scooping up the plurality of coil springs housed in the container, a conveyor for receiving the coil springs scooped up and falling by the blade material and transporting them downstream, a kicking means provided for kicking back only the tangled coil springs on the conveyor in the upstream direction, and a collision surface for colliding with the tangled coil springs kicked back by the kicking means, wherein the kicking means can pass through one coil spring. The conveyor is characterized by having a notch shaped so that the entangled coil spring cannot pass through, a kick-back member provided to be movable in the upstream and downstream directions, an elastic body provided behind the kick-back member, an elastic body stopper provided behind the elastic body, and a hooking member provided to be movable back and forth near the kick-back member, wherein by hooking the hooking member onto a part of the kick-back member and releasing the hook, the elastic force of the elastic body is used to bring the kick-back member straight against the longitudinal end of the entangled coil spring, and kick only the entangled coil spring back in the upstream direction of the conveyor.

[0009] The fourth means of solving the problem of the present invention is a coil spring supply device of the third means of solving the problem, characterized in that a stopper is provided for stopping the movement of the kick-back member.

[0010] The fifth means of solving the problem of the present invention is a coil spring supply device according to the first, second, third, or fourth means of solving the problem, characterized in that a roller is provided at the tip of the hooking material. [Effects of the Invention]

[0011] The first or third means of solving the problem of the present invention allows the kicking member to be applied straight to the longitudinal direction of the tangled coil spring. Therefore, the kick-back member does not come into contact with the longitudinal side of the entangled coil spring. Therefore, there is no risk of the coil spring being deformed when it is kicked back.

[0012] Therefore, the tangled coil springs are kicked back upstream by a kicking mechanism, colliding with the collision surface to untangle them, separating them into individual coil springs and dropping them repeatedly, thereby supplying undeformed coil springs one by one.

[0013] The second or fourth problem-solving means of the present invention, in addition to the effects achieved by the first problem-solving means, allows the kicking means to kick only the entangled coil springs back upstream of the conveyor. Instead of the entangled coil springs being pushed out while still attached to the kicking member, the kicking member can be firmly struck against the entangled coil springs, allowing them to be kicked back with force.

[0014] Furthermore, the hooking material can be fixed in place so that it can always be hooked onto and released from a part of the kick-back member, preventing the kick-back member from moving outside the range of positions where it can be hooked onto and released from by the hooking material.

[0015] The fifth problem-solving means of the present invention, in addition to the effects achieved by the first or second problem-solving means, can reduce the friction generated between the hooking material and a part of the kick-back member when the hooking material is hooked onto a part of the kick-back member and when the hooking is released.

[0016] Therefore, the hooking material can be smoothly hooked onto and released from a part of the kick-back member. Therefore, damage due to wear between the hooking material and the kick-back member can be suppressed, and the durability of the members can be increased. [Brief explanation of the drawing]

[0017] [Figure 1] Perspective view of the coil spring supply device of the present invention [Figure 2]Partial perspective view of the coil spring supply device of the present invention [Figure 3] Partial front view of the coil spring supply device of the present invention [Figure 4] Partial enlarged perspective view of the coil spring supply device of the present invention [Figure 5] Partial enlarged rear view of the coil spring supply device of the present invention [Figure 6] Partial enlarged perspective view of the kicking-back member of the coil spring supply device of the present invention [Figure 7] Explanatory drawing showing the operation of the coil spring supply device of the present invention [Figure 8] Another explanatory drawing showing the operation of the coil spring supply device of the present invention [Figure 9] Yet another explanatory drawing showing the operation of the coil spring supply device of the present invention [Figure 10] Explanatory drawing of a modified example of the kicking-back means of the coil spring supply device of the present invention [Figure 11] Explanatory drawing of a modified example of the kicking-back means of the coil spring supply device of the present invention[[ID=​​​​​​​​​​​​​​​​The coil spring supply device 10 of the present invention mainly comprises a cylindrical container 11 that is rotatably provided for housing a plurality of coil springs C, three vane materials 12 provided on the inner circumferential surface of the container 11 for scooping up the plurality of coil springs C housed in the container 11, a conveyor 13 for receiving the coil springs C that are scooped up and fall by the vane materials 12 and transporting them downstream, a kicking mechanism 14 provided for kicking back only the tangled coil springs C on the conveyor 13 in an upstream direction, and a collision surface 15 for causing the tangled coil springs C kicked back by the kicking mechanism 14 to collide.

[0019] The container 11 is connected to the housing 49 and is also mounted on the base 50. Furthermore, since the conveyor 13 and the kicking mechanism 14 are supported and fixed to the housing 49, they do not rotate together with the container 11.

[0020] The container 11 is mounted on the base 50 and is rotatably mounted by a drive mechanism 16 housed in the housing 49. The drive mechanism 16 mainly consists of a pair of drive roller groups 17 that support both the left and right sides of the lower outer circumference of the container 11, a pair of drive rotating shafts 18 for fixing the pair of roller groups 17, a pair of pulleys 19 provided at one end of each of the pair of drive rotating shafts 18, a drive pulley 20 of the conveyor 13, an idler pulley 21, a belt 22 stretched in an annular shape over the pulleys 19, the drive pulley 20 of the conveyor 13, and the idler pulley 21, a gear 23 joined to one of the pulleys 19, a motor 24, and a gear 25 mounted on the output shaft of the motor 24, with the gears 23 and 25 meshing with each other.

[0021] As a result, the drive means 16 rotates the motor 24, causing a pair of drive rotating shafts 18 to rotate in the same direction via gears 23 and 25, a pair of pulleys 19, a drive pulley 20, an idler pulley 21, and a belt 22, thereby rotating the container 11 supported by a pair of drive roller groups 17 in one direction.

[0022] The three wing-shaped members 12 are arranged in an L-shape along the longitudinal direction of the container 11 so as to be able to lift up multiple coil springs C. The conveyor 13 is a belt-type conveyor for transporting the coil spring C toward the downstream supply port 29.

[0023] The conveyor 13 is positioned along the longitudinal direction in the center of the container 11 so as to be able to receive the coil spring C that is lifted up and dropped by the three blades 12. A guide 26 is provided on one side of the conveyor 13 in the longitudinal direction, and a downward-facing slope 27 is provided on the other side. The conveyor 13 is installed inside the container 11 with the guide 26 facing diagonally downwards and the slope 27 facing diagonally upwards.

[0024] Therefore, the coil spring C, which is lifted up by the three blades 12 and falls onto the belt 28, is transported towards the supply port 29 while settling into the V-shape formed by the belt 28 and the guide 26. At that time, the coil spring C, which is lifted up by the three blades 12 and falls onto the belt 28, is prevented from falling off the conveyor 13 by the guide 26.

[0025] Furthermore, any coil springs C that are lifted up by the three blades 12 and fall onto the belt 28 but do not fit completely onto the belt 28 will slide down along the slope 27 and be lifted up once again by the three blades 12.

[0026] A gear (not shown) is mounted on the rotating shaft 31 of the pulley 30 at the downstream end of the conveyor 13, where the belt 28 is stretched in a ring shape. This gear is arranged to mesh perpendicularly with another gear (not shown) mounted on one end of a rotating shaft (not shown) fixed to the aforementioned drive pulley 20.

[0027] Therefore, by rotating the motor 24, the container 11 is rotated in one direction, and in sync with this, the conveyor 13 is driven, allowing the coil spring C, which has been scooped up by the three blades 12 and fallen onto the belt 28, to be transported toward the downstream supply port 29.

[0028] The kick-back mechanism 14 is located above the conveyor 13 along its longitudinal direction. The kick-back mechanism 14 mainly comprises a kick-back member 32, an elastic body 33 consisting of a spring provided behind the kick-back member 32, an elastic body stopper 34 provided behind the elastic body 33, and a rotating body 35 provided above and near the kick-back member 32 (see Figures 2, 4-6). Note that the elastic body 33 may be any other elastic material such as a spring or rubber.

[0029] The kick-back member 32 includes a kick-back plate 37 with a notch 36 at its bottom that allows one coil spring C to pass through but prevents entangled coil springs C from passing through, a linear guide 38 provided along the longitudinal direction of the conveyor 13, a connecting member 39 connecting the kick-back plate 37 and the linear guide 38, a kick-back claw 41 through which an elastic guide 40 passes and which is provided to slide freely on the elastic guide 40, and a relay plate 51 connecting the connecting member 39 and the kick-back claw 41. The kick-back member 32 is provided to be movable in the upstream and downstream directions by being guided by the linear guide 38.

[0030] The kickback plate 37 is located on the upstream side of the conveyor 13, and the kickback claws 41 are located on the downstream side of the conveyor 13. The kick-back claw 41 is made of a plate-shaped member, and its upper part is hooked by the hooking material 45, which will be described later, and the hooking is also released.

[0031] Furthermore, the kick-back claw 41 is not limited to a plate-shaped member, but can be any shape that allows its upper part to be hooked by the hooking material 45 and that allows the hook to be released. The elastic body 33 is provided between the kick-back claw 41 and the elastic body stopper 34, with the elastic body guide 40 passing through and supporting it.

[0032] The elastic body stopper 34 is for receiving the elastic body 33 between itself and the kick-back claw 41, and has a notch 53 on its lower side that is shaped to allow one coil spring C to pass through smoothly, so as not to obstruct the passage of the coil spring C supplied from the supply port 29.

[0033] The rotating body 35 consists of a cylindrical body to which a gear 42 is attached, and is positioned above the kickback claw 41 so that the gear 44 mounted on the output shaft of the motor 43 meshes with the gear 42. The rotating body 35 is provided to be rotatable in the vertical direction in conjunction with the rotation of the motor 43.

[0034] Three hooking members 45 are provided on the outer circumference of the rotating body 35, which allow the upper part of the kick-back claw 41 to be hooked and released as the rotating body 35 rotates. The three hooking members 45 are made of plate-shaped material, and their tips are equipped with rollers 52 to reduce wear when they come into contact with the upper part of the kicking claw 41.

[0035] Furthermore, the rotating body 35 can be any mechanism that is rotatably mounted in the vertical direction. For example, the rotating body 35 may be a belt-type conveyor 54 (or a chain conveyor, slat conveyor, apron conveyor), and may be provided with a hooking member 45 that can hook and release the upper part of the kick-back claw 41 as it rotates (see Figure 10).

[0036] Furthermore, the hook material 45 may be just one, and it may also be possible to omit the roller 52 at the tip. The hooking material 45 may be made of a rod-shaped member, and any member with a shape that allows it to hook onto and release the upper part of the kick-back claw 41 is acceptable. Alternatively, the rotating body 35 itself may have a structure that serves as the hook 45. For example, a paddlewheel.

[0037] Therefore, as the rotating body 35 rotates in one direction, the hooking material 45 hooks onto the upper part of the kick-back claw 41, compressing the elastic body 33 between the kick-back claw 41 and the elastic body stopper 34. As the rotating body 35 continues to rotate in one direction, the hooking material 45 that was hooked onto the upper part of the kick-back claw 41 is released, disengaging the hook and releasing the elastic body 33 that was compressed between the kick-back claw 41 and the elastic body stopper 34. This causes the kick-back claw 41 to be repelled upstream of the conveyor 13 using the elastic force of the elastic body 33.

[0038] As the kickback claw 41 is repelled in the upstream direction of the conveyor 13, the kickback plate 37 is guided by the linear guide 38 and repelled in the upstream direction of the conveyor 13. Therefore, the kicking plate 37 can be applied straight to the longitudinal end of the entangled coil spring C, and only the entangled coil spring C can be kicked back in the upstream direction of the conveyor 13.

[0039] Alternatively, the kick-back member 32 may be provided with a kick-back plate 37 having a notch 36 that allows one coil spring C to pass through but prevents entangled coil springs C from passing through, and a kick-back claw 41 that is slidably mounted on the elastic guide 40 through which an elastic guide 40 passes, and also with a linear guide 38 provided along the longitudinal direction of the conveyor 13 and a connecting member 39 that connects the kick-back plate 37 and the linear guide 38.

[0040] Furthermore, a stopper 46 is provided between the kicking plate 37 and the kicking claw 41 of the kicking mechanism 14 to stop the movement of the kicking claw 41 when it is deflected in the upstream direction of the conveyor 13. The stopper 46 consists of a vertically mounted plate with a bolt 47, which acts as a buffer, horizontally mounted on the downstream side of the conveyor 13.

[0041] The movement of the kick-back claw 41 can be stopped by bringing the head of the bolt 48, which is located on the upstream side of the conveyor 13 of the repelled kick-back claw 41, into contact with the head of the bolt 47 of the stopper 46. The movement of the deflected kicking claw 41 is stopped by the stopper 46, so that the entangled coil spring C is not pushed out while still attached to the kicking claw 41, but rather the entangled coil spring C is made to collide firmly with the kicking claw 41, allowing it to be kicked back with force. Alternatively, the kick-back mechanism 14 may be provided without the stopper 46.

[0042] The impact surface 15 for the entangled coil spring C, which has been kicked back by the kicking mechanism 14, is the inner surface on the back side of the container 11. Furthermore, the collision surface 15 is not limited to the inner surface on the back side of the container 11, but can be any surface that can untangle the coil springs C by colliding with them, separating them into individual coil springs C and allowing them to fall. For example, it could be a plate installed near the upstream end of the conveyor belt 13.

[0043] As an alternative modification, instead of the rotating body 35, an actuator 55 consisting of an air cylinder may be installed in an inclined direction with the upstream side facing downwards and the downstream side facing upwards, and a hook member 45 may be provided at the tip of the rod 56 so as to be able to move back and forth (see Figure 11).

[0044] The hooking member 45, which is attached to the tip of the rod 56, has a portion that hooks onto the upper part of the kicking claw 41, which is rotatably supported by a rotating shaft 57. It is also designed to rotate in the downstream direction but be stopped by a fixing member 58 so as not to rotate in the upstream direction.

[0045] Therefore, the hooking material 45 provided at the tip of the rod 56 is designed so that the part that hooks onto the upper part of the kicking claw 41 bends in the downstream direction but does not bend in the upstream direction. Furthermore, the structure in which the part that hooks onto the upper part of the kick-back claw 41 bends in the downstream direction but not in the upstream direction is not limited to the above-mentioned structure, and any structure that performs that function is acceptable.

[0046] In this modified example, the actuator 55 is positioned in an inclined direction such that the hooking member 45 can hook onto the upper part of the kick-back claw 41 when the rod 56 begins to retract, and then move away from the upper part of the kick-back claw 41 as the rod 56 continues to retract. As a result, the hooking member 45 is provided so as to be able to move back and forth in an inclined direction relative to the upper part of the kick-back claw 41.

[0047] Therefore, as the rod 56 of the inclined actuator 55 contracts, the hooking member 45 hooks onto the upper part of the kick-back claw 41, compressing the elastic body 33 between the kick-back claw 41 and the elastic body stopper 34. Furthermore, as the rod 56 of the inclined actuator 55 retracts, the hooking material 45 that was caught on the upper part of the kick-back claw 41 detaches, releasing the hook and releasing the elastic body 33 that was compressed between the kick-back claw 41 and the elastic body stopper 34. Therefore, the elastic force of the elastic body 33 causes the kick-back claw 41 to be repelled in the upstream direction of the conveyor 13.

[0048] As the kickback claw 41 is repelled in the upstream direction of the conveyor 13, the kickback plate 37 is guided by the linear guide 38 and repelled in the upstream direction of the conveyor 13. Therefore, the kicking plate 37 can be applied straight to the longitudinal end of the entangled coil spring C, and only the entangled coil spring C can be kicked back in the upstream direction of the conveyor 13.

[0049] Furthermore, as the rod 56 of the actuator 55 retracts, the hooking material 45 that was caught on the upper part of the kick-back claw 41 detaches, releasing the hook. After the hook is released, the rod 56 of the actuator 55 extends, and when it hooks the hooking material 45 onto the upper part of the kick-back claw 41 again, the part of the hooking material 45 that hooks onto the upper part of the kick-back claw 41 hits the downstream side of the upper part of the kick-back claw 41, bends in the downstream direction, then moves to the upstream side of the upper part of the kick-back claw 41, straightens out, and hooks the hooking material 45 onto the upper part of the kick-back claw 41 again without bending in the upstream direction.

[0050] Furthermore, as a modification, instead of the rotating body 35, an actuator 55 made of an air cylinder may be provided horizontally, a hooking member 45 may be provided at the tip of the rod 56 so as to be able to move back and forth, a magnet 59 may be provided downstream of the kick-back claw 41, a magnet 60 may be provided upstream of the hooking member 45, and a stopping member 61 for stopping the kick-back claw 41 may be provided downstream (see Figure 12). The stopping member 61 consists of a round bar positioned perpendicular to the line of movement of the kick-back claw 41.

[0051] In this modified example, the rod 56 of the actuator 55 extends, causing the magnet 60 of the hooking material 45 to magnetically adhere to the magnet 59 of the kickback claw 41. Furthermore, as the rod 56 of the actuator 55 retracts, the kickback claw 41 is pulled downstream by the hooking material 45, compressing the elastic body 33 between the kickback claw 41 and the elastic body stopper 34.

[0052] Furthermore, as the rod 56 of the inclined actuator 55 retracts, the kick-back claw 41 strikes the stopper 61 midway, causing the hook 45 to separate from the kick-back claw 41, releasing the hook and releasing the elastic body 33 that was compressed between the kick-back claw 41 and the elastic body stopper 34. As a result, the elastic force of the elastic body 33 causes the kick-back claw 41 to be repelled in the upstream direction of the conveyor 13.

[0053] As the kickback claw 41 is repelled in the upstream direction of the conveyor 13, the kickback plate 37 is guided by the linear guide 38 and repelled in the upstream direction of the conveyor 13. Therefore, the kicking plate 37 can be applied straight to the longitudinal end of the entangled coil spring C, and only the entangled coil spring C can be kicked back in the upstream direction of the conveyor 13.

[0054] Alternatively, instead of providing a stopper 61 for the kick-back claw 41, the magnet 60 of the hooking material 45 and the magnet 59 of the kick-back claw 41 can be made into electromagnets, and the hooking material 45 can be separated from the kick-back claw 41 by stopping the current midway, thereby releasing the hook.

[0055] Furthermore, as a modification, instead of the rotating body 35, an actuator 55 consisting of an air cylinder may be provided horizontally, a hook member 45 rotatably mounted on the tip of a rod 56 via a rotating shaft 62 and movable back and forth, a rotatable cam 63 provided to move back and forth in synchronization with the hook member 45, a rod member 64 mounted at a certain angle to the cam 63, and a pin 65 provided downstream to rotate the cam 63 by contacting the rod member 64 (see Figure 13). The pin 65 is made of a round bar that is positioned perpendicular to the line of movement of the rod 64 so as not to interfere with other components.

[0056] In this modified example, when the rod 56 of the actuator 55 extends, the cam 63 is set not to rotate the hook member 45 in the upstream direction. In this state, as the rod 56 of the actuator 55 retracts, the kick-back claw 41 is hooked downstream by the hook member 45, compressing the elastic body 33 between the kick-back claw 41 and the elastic body stopper 34.

[0057] Furthermore, as the rod 56 of the actuator 55 retracts, the rod 64 hits the pin 65, and as the cam 63 rotates, the hook 45 is pushed upstream by the kick-back claw 41 and rotates, causing the hook 45 to separate from the kick-back claw 41, releasing the hook and releasing the elastic body 33 that was compressed between the kick-back claw 41 and the elastic body stopper 34. As a result, the elastic force of the elastic body 33 causes the kick-back claw 41 to be repelled in the upstream direction of the conveyor 13.

[0058] As the kickback claw 41 is repelled in the upstream direction of the conveyor 13, the kickback plate 37 is guided by the linear guide 38 and repelled in the upstream direction of the conveyor 13. Therefore, the kicking plate 37 can be applied straight to the longitudinal end of the entangled coil spring C, and only the entangled coil spring C can be kicked back in the upstream direction of the conveyor 13.

[0059] Furthermore, when the rod 56 of the actuator 55 extends again, the hooking material 45 hits the kickback claw 41 from the downstream side and rotates in the downstream direction, overcoming the upstream side of the kickback claw 41. Then, the cam 63 prevents it from rotating in the upstream direction again, and as the rod 56 of the actuator 55 retracts, the kickback claw 41 is hooked by the hooking material 45 in the downstream direction.

[0060] The operation of the coil spring supply device 10 of the present invention will be explained.

[0061] Multiple coil springs C inside a container 11 that rotates in one direction are lifted up by three vane materials 12 and then fall onto the belt 28 of a driven conveyor 13. The coil spring C that falls onto the belt 28 of the conveyor 13 is transported toward the downstream supply port 29. At this time, the coil springs C, which are separated into individual units, pass through the notches 36 of the kickback plate 37 without any problems and are supplied from the supply port 29.

[0062] However, the tangled coil spring C remains stuck in contact with the kickback plate 37 in some places and cannot pass through the notch 36. The inventors have found that the optimal shape for the notch 36 is one that allows the coil spring to be supplied to pass through, but prevents coil springs with an outer diameter equal to the sum of the outer diameter of the supplied coil spring and the wire diameter from passing through. In other words, the optimal notch shape for the coil spring is one that is larger than the outer diameter of the coil spring to be supplied, and smaller than the outer diameter of the coil spring obtained by adding the wire diameter to the outer diameter of the coil spring to be supplied.

[0063] As the conveyor 13 moves the entangled coil spring C into contact with the kickback plate 37, the rotating body 35, which rotates in one direction, causes the tip of one of the hooks 45 to catch on the upper part of the kickback claw 41, pushing the kickback claw 41 downstream, and the elastic body 33 begins to compress between the kickback claw 41 and the elastic body stopper 34 (see Figure 7).

[0064] Furthermore, the rotating body 35, which continues to rotate in one direction, causes one of the hooking members 45 to continuously push the kicking claw 41 downstream, compressing the elastic body 33 between the kicking claw 41 and the elastic body stopper 34 (see Figure 8). Then, the rotating body 35, which continues to rotate in one direction, causes the tip of one of the hooking members 45 to separate from the upper part of the kicking claw 41, releasing the hook.

[0065] Then, the elastic body 33, which had been compressed between the kick-back claw 41 and the elastic body stopper 34, is released, and the elastic force of the elastic body 33 causes the kick-back claw 41 to bounce back in a straight longitudinal direction upstream of the conveyor 13, and is stopped by the stopper 46 (see Figure 9).

[0066] Then, as the kickback claw 41 is repelled in the upstream direction of the conveyor 13, the kickback plate 37 is guided by the linear guide 38 and repelled in a straight longitudinal direction in the upstream direction of the conveyor 13. Then, the kickback plate 37, which has been deflected straight in the longitudinal direction, is brought straight against the longitudinal end of the entangled coil spring C and made to collide with it in the upstream direction of the conveyor 13.

[0067] In this case, the kicking plate 37 can be applied straight against the longitudinal direction of the entangled coil spring C, so the kicking plate 37 does not come into contact with the lateral side of the entangled coil spring C in the longitudinal direction. Therefore, there is no risk of the coil spring C being deformed when it is kicked back.

[0068] Then, the entangled coil spring C, kicked back upstream by the kicking plate 37, collides forcefully with the collision surface 15, untangling itself and separating into individual coil springs C which then fall. Then, each coil spring C is again lifted up by one of the three blades 12, falls onto the belt 28 of the conveyor 13, passes through the notch 36 of the kickback plate 37 without any problems, and is supplied from the supply port 29.

[0069] By repeating the above process, the tangled coil springs C can be separated and supplied to each individual coil spring C without deforming the coil spring C. [Explanation of symbols]

[0070] 10. Coil spring supply device 11 Container 12 feather material 13 Conveyor 14. Counter-kicking methods 15 Collision surface 16 Driving means 17 Drive roller group 18. Drive shaft 19 Pulley 20 Drive pulley 21 Idler Pulley 22 Belt (driving means) 23. Gears (driving means) 24. Motor (driving means) 25 Gears (driving means) 26 Guide 27 Slope 28 belts 29 Supply port 30 Downstream pulley 31. Rotating shaft (conveyor) 32. Kick-back component 33 Elastic body 34 Elastic stopper 35. Solids of revolution 36 Notches (Kickback boards) 37 Kick-back board 38 Linear guide 39 Bonding material 40 Elastic Guide 41. Kick-back claw 42 Gears (rotating bodies) 43. Motor (rotating body) 44. Gears (rotating bodies) 45. Hanging material 46 Stopper 47 bolts (stopper) 48 bolts (reverse claws) 49 cabinets 50 base 51 Relay board 52 Roller (hooking material) 53 Notch (elastic stopper) 54 Belt-type conveyor 55 Actuators 56 rods 57. Rotating shaft (hooking material) 58 Fixing material 59 Magnets 60 magnets 61 Stop material 62 Rotation axis 63 Cam 64 Bar material 65 pins C Coil spring

Claims

1. A rotatable container for housing multiple coil springs, A vane material provided on the inner surface of the container for scraping up a plurality of coil springs housed in the container, A conveyor for receiving a coil spring that is lifted up and falls by the aforementioned blade material, and for transporting it in the downstream direction, A kicking mechanism is provided to kick back only the tangled coil springs on the conveyor in the upstream direction, A coil spring supply device having a collision surface for causing entangled coil springs kicked back by the aforementioned kicking mechanism to collide, The aforementioned kicking counter means, A kick-back member is provided that is movable in the upstream and downstream directions, and has a notch that allows one coil spring to pass through but prevents tangled coil springs from passing through. An elastic body provided behind the kick-back member, An elastic stopper is provided behind the aforementioned elastic body, A rotating body is provided near the aforementioned kick-back member so as to be rotatable in the vertical direction, The rotating body has a hooking member provided on its outer circumference, The invention is characterized by using the elastic force of an elastic body to apply the kicking member directly to the longitudinal end of the entangled coil spring by hooking the hooking material onto a part of the kicking member and then releasing the hook, thereby kicking only the entangled coil spring back in the upstream direction of the conveyor.

2. A coil spring supply device according to claim 1, The invention is characterized by being provided with a stopper for stopping the movement of the kick-back member.

3. A rotatable container for housing multiple coil springs, A vane material provided on the inner surface of the container for scraping up a plurality of coil springs housed in the container, A conveyor for receiving a coil spring that is lifted up and falls by the aforementioned blade material, and for transporting it in the downstream direction, A kicking mechanism is provided to kick back only the tangled coil springs on the conveyor in the upstream direction, A coil spring supply device having a collision surface for causing entangled coil springs kicked back by the aforementioned kicking mechanism to collide, The aforementioned kicking counter means, A kick-back member is provided that is movable in the upstream and downstream directions, and has a notch that allows one coil spring to pass through but prevents tangled coil springs from passing through. An elastic body provided behind the kick-back member, An elastic stopper is provided behind the aforementioned elastic body, It has a hooking member that is provided near the kick-back member so as to be able to move back and forth, The invention is characterized by using the elastic force of an elastic body to apply the kicking member directly to the longitudinal end of the entangled coil spring by hooking the hooking material onto a part of the kicking member and then releasing the hook, thereby kicking only the entangled coil spring back in the upstream direction of the conveyor.

4. A coil spring supply device according to claim 3, The invention is characterized by being provided with a stopper for stopping the movement of the kick-back member.

5. A coil spring supply device according to claim 1, 2, 3, or 4, The aforementioned hooking material is characterized by having a roller at its tip.

Citation Information

Patent Citations

  • Coil spring supply device

    JP2018203393A