A device for reducing residual stress of spring steel wire

Abstract

The present invention provides a device for reducing the residual stress of a spring steel wire. A penetrating rod penetrates and extends into the interior of a vertical straightener and a transverse straightener. The penetrating rod, a sliding wheel and a straightening wheel are matched with each other, and four penetrating rods are provided. The penetrating rods are evenly distributed on the sides of the vertical straightener and the transverse straightener. Grooves are provided on both sides of the straightening wheel near one end of the sliding wheel. An adjustment mechanism is provided on the side of the groove near the sliding wheel. The vertical straightener and the transverse straightener are added before the transition from the lower layer of the finished product winding reel to the upper layer guide wheel. The vertical straightener is arranged vertically at 90 degrees, and the transverse straightener is arranged horizontally at 180 degrees. The spring steel wire penetrates between the sliding wheel and the straightening wheel. The arrangement of the vertical straightener and the transverse straightener can be utilized to reduce the residual force of the spring steel wire and improve the forming stability of the spring steel wire.

Description

Technical Field

[0001] The present invention relates to the technical field of metal wire processing or treatment, and in particular to a device for reducing residual stress of spring steel wire. Background Art

[0002] With the continuous updating of spring equipment of spring manufacturers, the sensitivity of spring machines to steel wires during forming is getting higher and higher, especially for small wires below 3.0mm. Once the stress generated by the spring machine when drawing the steel wire is too high, it is easy to cause fluctuations during spring forming, resulting in shutdown of the spring machine equipment or low spring qualification rate. Technical enlightenment for spring machines;

[0003] The following problems were found in the study of spring machines:

[0004] At present, spring machines generally use straighteners, vibration devices or reduced drawing speed to reduce stress, but existing devices cannot adjust the coil diameter and vector, another factor that affects the forming stability of spring steel wire, and are not used to reduce the residual stress of spring steel wire and improve the forming stability of spring steel wire. As a result, existing spring machines cannot reduce the residual stress of spring steel wire when processing spring steel wire.

[0005] Currently, CN200710078632.X, a prior art document, discloses an anti-deformation device for wire box tension drawing. This device has the characteristics of being able to accurately control the tension of the wire in real time, being easy to adjust, and ensuring that the stress borne by the wire drawing is less than the allowable stress of the wire. This ensures the processing quality of multi-strand coil springs and improves the qualified rate and aesthetics of the multi-strand coil springs produced. This device can be widely used in multi-strand coil spring processing machines, and is particularly suitable for CNC multi-strand coil spring processing machines.

[0006] The present invention can mainly solve the problem that the residual stress of the spring steel wire cannot be reduced when the spring machine processes the spring steel wire. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a device for reducing the residual stress of a spring steel wire to solve the problems described in the above background technology.

[0008] The purpose and efficacy of the device for reducing the residual stress of a spring steel wire of the present invention are achieved by the following specific technical means: A device for reducing the residual stress of a spring steel wire comprises a mounting frame, a vertical straightener and a transverse straightener are distributed on both sides of the upper end of the mounting frame, a fixed wheel is installed on one side of the vertical straightener and the transverse straightener, a through rod penetrates the side of the vertical straightener and the transverse straightener close to the fixed wheel, a sliding wheel is slidably connected to the outer side of the through rod, and a straightening wheel is provided on the outer side of the through rod.

[0009] Furthermore, the mounting frame is installed on the upper end of the spring machine, the vertical straightener is arranged vertically at 90°, the transverse straightener is arranged horizontally at 180°, and the spring steel wire passes through the side of the vertical straightener and the upper end of the transverse straightener.

[0010] Furthermore, there are three fixed wheels, which are arranged on the sides of the vertical straightener and the horizontal straightener respectively.

[0011] Furthermore, a groove is provided on one side of the vertical straightener and the horizontal straightener close to the through rod.

[0012] Furthermore, the penetrating rod penetrates and extends into the interior of the vertical straightener and the transverse straightener. The penetrating rod, the sliding wheel and the straightening wheel are matched with each other, and there are four penetrating rods, which are evenly distributed on the sides of the vertical straightener and the transverse straightener.

[0013] Furthermore, grooves are provided on both sides of the straightening wheel close to one end of the sliding wheel, and an adjustment mechanism is provided on one side of the groove close to the sliding wheel.

[0014] Furthermore, a screw is rotatably sleeved on one end of the through rod, an adjusting wheel is spirally sleeved on the upper end of the screw, and pads are embedded in the inner walls of the grooves of the vertical straightener and the horizontal straightener on the side close to the through rod.

[0015] Furthermore, the adjusting wheels are distributed at one end of the vertical straightener and the horizontal straightener, the adjusting wheels are matched with the through rods, the screw rods are inside the vertical straightener and the horizontal straightener, and the ends of the screw rods away from the adjusting wheels are connected to the through rods.

[0016] Furthermore, the pads are grouped in pairs, and each group of pads is located on both sides of the grooves of the vertical straightener and the horizontal straightener. The pads are semicircular in shape, and the pad radius is 0.1-0.2 cm.

[0017] Furthermore, the adjustment mechanism includes a push rod, a bracket and a folding block, the bracket is installed on one side of the straightening wheel, the folding block is slidably nested in the side of the sliding wheel close to the straightening wheel, and the push rod is slidably nested in the side of the folding block close to the bracket.

[0018] Furthermore, one end of the push rod away from the sliding wheel extends to the inside of the groove of the straightening wheel, and the push rod slides horizontally between the straightening wheel and the sliding wheel, and the push rod slides through the inside of the bracket.

[0019] Furthermore, a hole is passed through the interior of the bracket, and the push rod passes through the interior of the hole. One end of the bracket is connected to the folding block, and the folding block is horizontally folded and telescopic, and both sides of the folding block are folded in a wave shape.

[0020] Furthermore, the adjustment mechanism also includes blades, a rotating shaft and a weight. The rotating shaft is hinged inside the grooves of the vertical straightener and the horizontal straightener, and the blades and the weight swing at the upper and lower ends of the rotating shaft respectively.

[0021] Furthermore, one end of the blade is connected to the end of the push rod, and the blade is in a linkage state with a weight through a rotating shaft, and the weight of the weight is 100-200g.

[0022] Beneficial effects:

[0023] 1. By adding a vertical straightener and a horizontal straightener before the transition from the lower layer of the finished product take-up reel to the upper layer guide wheel, the vertical straightener is arranged vertically at 90 degrees, and the horizontal straightener is arranged horizontally at 180 degrees. The spring steel wire runs through the sliding wheel and the straightening wheel. The arrangement of the vertical straightener and the horizontal straightener can reduce the residual force of the spring steel wire and improve the forming stability of the spring steel wire.

[0024] 2. Manually rotate the adjusting wheel clockwise. The adjusting wheel and the screw rotate clockwise. At this time, the screw can drive the through-rod to slide upward. At this time, the sliding wheel and the straightening wheel slide upward synchronously, and the distance between the sliding wheel, the straightening wheel and the fixed wheel increases. The pad can support both sides of the lower end of the through-rod. At the same time, the pad radius is 0.1-0.2cm, which makes it easier for the through-rod to slide inside the grooves of the vertical straightener and the horizontal straightener.

[0025] 3. Manually slide the sliding wheel toward the side of the straightening wheel, and the folding block will fold horizontally. At this time, the internal length of the folding block will be shortened, and one end of the inner wall of the folding block will be squeezed to the end of the push rod. The push rod will slide toward the outside of the folding block and toward the side of the straightening wheel. The bracket will be in a stationary state.

[0026] 4. When the sliding wheel slides toward the side away from the straightening wheel, the folding block is horizontal as a whole, and the overall length of the folding block increases. The push rod is stationary and cannot slide horizontally. This makes it easy to adjust the distance between the straightening wheel and the sliding wheel, thereby achieving the effect of an adjustable spring wire ring.

[0027] 5. When the push rod slides toward one side of the straightening wheel, one end of the blade is connected to the end of the push rod, and the push rod can drive the blade to swing. The blade swings downward at the upper end of the rotating shaft. At this time, the blade drives the weight to swing upward through the rotating shaft. Using the weight of the weight, the weight swings upward for a short time, and then the weight can swing downward through the rotating shaft. At this time, the blade can drive the push rod to return and slide, and the push rod can be squeezed to one side of the folding block. The folding block as a whole slides toward one side of the sliding wheel to avoid excessive clamping force between the sliding wheel and the straightening wheel, which causes deformation of the spring wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the adjusting wheel of the present invention.

[0030] Figure 3 It is a structural schematic diagram of the vertical straightener of the present invention.

[0031] Figure 4 Schematic diagram of the sliding wheel assembly of the present invention.

[0032] Figure 5 This is a schematic top view of the cross section of the sliding wheel of the present invention.

[0033] Figure 6 It is a schematic diagram of the cross-sectional structure of the sliding wheel of the present invention.

[0034] Figure 7 It is a schematic diagram of the local structure of the folding block of the present invention.

[0035] Figure 8 This is a schematic diagram of the folding block stretching of the present invention.

[0036] Figure 9 This is a schematic diagram of the partial folding of the folding block of the present invention.

[0037] Figure 1-9 , the corresponding relationship between component names and figure numbers is as follows:

[0038] 1-mounting frame, 101-vertical straightener, 102-horizontal straightener, 103-fixed wheel, 104-sliding wheel, 105-straightening wheel, 2-adjusting wheel, 201-screw, 202-through rod, 3-pad, 4-push rod, 401-bracket, 402-folding block, 5-blade, 501-rotating shaft, 502-weight. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0040] As attached Figure 1 To the attached Figure 9 As shown:

[0041] Example 1: A device for reducing residual stress in a spring steel wire comprises a mounting frame 1, with a vertical straightener 101 and a horizontal straightener 102 distributed on both sides of the upper end of the mounting frame 1. A fixed wheel 103 is installed on one side of each of the vertical straightener 101 and the horizontal straightener 102. A through rod 202 penetrates the side of the vertical straightener 101 and the horizontal straightener 102 near the fixed wheel 103. A sliding wheel 104 is slidably connected to the outer side of the through rod 202. A straightening wheel 105 is provided on the outer side of the through rod 202.

[0042] Wherein: the mounting frame 1 is installed at the upper end of the spring machine, the vertical straightener 101 is arranged vertically at 90 degrees, the horizontal straightener 102 is arranged horizontally at 180 degrees, and the spring steel wire passes through the side of the vertical straightener 101 and the upper end of the horizontal straightener 102;

[0043] The mounting frame 1 is located between the lower transition layer of the finished product winding drum and the upper guide wheel of the spring machine;

[0044] There are three fixed wheels 103 , which are arranged on the sides of the vertical straightener 101 and the horizontal straightener 102 ;

[0045] The vertical straightener 101 and the horizontal straightener 102 are both provided with grooves on one side of the vertical straightener 101 and the horizontal straightener 102 close to the through rod 202;

[0046] A groove is formed on one side of the vertical straightener 101 and the horizontal straightener 102 close to the through rod 202. The through rod 202 extends through the groove to the inside of the vertical straightener 101 and the horizontal straightener 102.

[0047] The penetrating rod 202 and the sliding wheel 104 penetrate and extend into the interior of the vertical straightener 101 and the transverse straightener 102. The penetrating rod 202, the sliding wheel 104 and the straightening wheel 105 are matched with each other, and there are four penetrating rods 202, which are evenly distributed on the sides of the vertical straightener 101 and the transverse straightener 102.

[0048] The spring steel wire runs between the sliding wheel 104 and the straightening wheel 105;

[0049] When the sliding wheel 104 slides horizontally on the outer side of the penetrating rod 202, the straightening wheel 105 is in a stationary state;

[0050] A straightening wheel 105 is provided with grooves on both sides of one end of the straightening wheel 105 close to the sliding wheel 104, and an adjustment mechanism is provided on the side of the groove close to the sliding wheel 104;

[0051] Wherein: by adding a vertical straightener 101 and a transverse straightener 102 before the transition from the lower layer of the finished product take-up reel to the upper layer guide wheel, the vertical straightener 101 is arranged vertically at 90 degrees, and the transverse straightener 102 is arranged horizontally at 180 degrees, and the spring steel wire runs through the sliding wheel 104 and the straightening wheel 105, the arrangement of the vertical straightener 101 and the transverse straightener 102 can reduce the residual force of the spring steel wire and improve the forming stability of the spring steel wire;

[0052] Example 2: Refer to the attached manual Figure 1-4 It can be seen that the difference between Example 2 and Example 1 is that one end of the through rod 202 is rotatably sleeved with a screw rod 201, the upper end of the screw rod 201 is spirally sleeved with an adjusting wheel 2, and the inner wall of the groove of the vertical straightener 101 and the horizontal straightener 102 on the side close to the through rod 202 is inlaid with a pad 3;

[0053] Among them: the screw 201 and the adjusting wheel 2, the adjusting wheel 2 is distributed at one end of the vertical straightener 101 and the horizontal straightener 102, the adjusting wheel 2 is matched with the through rod 202, the screw 201 is inside the vertical straightener 101 and the horizontal straightener 102, and the end of the screw 201 away from the adjusting wheel 2 is connected to the through rod 202;

[0054] One end of the through rod 202 is rotatably sleeved with the screw rod 201. When the screw rod 201 rotates vertically, the through rod 202 slides vertically.

[0055] The inner wall of the adjusting wheel 2 is surrounded by a threaded groove that matches the screw 201. The adjusting wheel 2 rotates 360 degrees. By adjusting the rotation direction of the adjusting wheel 2, the adjusting wheel 2 can drive the screw 201 to spirally slide inside the vertical straightener 101 and the horizontal straightener 102.

[0056] Pads 3, each two pads 3 are in a group, each group of pads 3 are located on both sides of the grooves of the vertical straightener 101 and the horizontal straightener 102, the pads 3 are semicircular, and the radius of the pads 3 is 0.1-0.2 cm;

[0057] The pad 3 can support both sides of the lower end of the through rod 202. At the same time, the pad 3 has a radius of 0.1-0.2 cm, which facilitates the sliding of the through rod 202 in the grooves of the vertical straightener 101 and the horizontal straightener 102.

[0058] Wherein: manually rotate the adjusting wheel 2 clockwise, the adjusting wheel 2 and the screw 201 rotate clockwise, at this time the screw 201 can drive the through rod 202 to slide upward, at this time the sliding wheel 104 and the straightening wheel 105 slide upward synchronously, and the distance between the sliding wheel 104 and the straightening wheel 105 and the fixed wheel 103 increases, and the pad 3 can be used to support both sides of the lower end of the through rod 202. At the same time, the pad 3 has a radius of 0.1-0.2 cm, which facilitates the through rod 202 to slide inside the grooves of the vertical straightener 101 and the horizontal straightener 102;

[0059] The adjusting wheel 2 is rotated counterclockwise in the reverse direction, and the adjusting wheel 2 and the screw 201 rotate counterclockwise. At this time, the screw 201 can drive the through rod 202 to slide downward. At this time, the sliding wheel 104 and the straightening wheel 105 slide downward synchronously, and the distance between the sliding wheel 104, the straightening wheel 105 and the fixed wheel 103 is reduced, which facilitates the sliding wheel 104, the straightening wheel 105 and the fixed wheel 103 to further clamp the outer side of the spring wire;

[0060] Example 3: Refer to the attached manual Figure 1 、 4 -9, it can be seen that the difference between Example 3 and Examples 1 and 2 is that the adjustment mechanism includes a push rod 4, a bracket 401 and a folding block 402, the bracket 401 is installed on one side of the straightening wheel 105, the folding block 402 is slidably nested on the side of the sliding wheel 104 close to the straightening wheel 105, and the push rod 4 is slidably nested on the side of the folding block 402 close to the bracket 401;

[0061] Among them: the push rod 4, one end of the push rod 4 away from the sliding wheel 104 extends to the inside of the groove of the straightening wheel 105, the push rod 4 slides horizontally between the straightening wheel 105 and the sliding wheel 104, and the push rod 4 slides through the inside of the bracket 401;

[0062] The push rod 4 slides horizontally between the straightening wheel 105 and the sliding wheel 104. When the sliding wheel 104 slides on the outside of the through rod 202, the push rod 4 slides synchronously.

[0063] The bracket 401 and the folding block 402 have a hole running through the inside of the bracket 401, and the push rod 4 passes through the inside of the hole. One end of the bracket 401 is connected to the folding block 402. The folding block 402 folds and retracts horizontally, and the two sides of the folding block 402 fold in a wave shape.

[0064] The folding block 402 is hollow inside and is made of rubber;

[0065] When the sliding wheel 104 slides toward one side of the straightening wheel 105, the folding block 402 is horizontally folded. At this time, the internal length of the folding block 402 is shortened, and one end of the inner wall of the folding block 402 is squeezed to the end of the push rod 4. The push rod 4 slides toward the outside of the folding block 402. Please refer to the attached manual for details. Figure 9As shown;

[0066] When the sliding wheel 104 slides toward the side away from the straightening wheel 105, the folding block 402 is horizontal as a whole, and the overall length of the folding block 402 increases, and the push rod 4 is in a stationary state. Figure 8 As shown;

[0067] When the sliding wheel 104 is in a stationary state, the folding block 402 is folded in a wave shape as a whole. Figure 7 As shown;

[0068] Wherein: manually slide the sliding wheel 104 toward one side of the straightening wheel 105, and the folding block 402 is horizontally folded. At this time, the internal length of the folding block 402 is shortened, and one end of the inner wall of the folding block 402 is squeezed to the end of the push rod 4. The push rod 4 slides toward the outside of the folding block 402, and the push rod 4 slides toward one side of the straightening wheel 105. The bracket 401 is in a stationary state;

[0069] When the sliding wheel 104 slides toward the side away from the straightening wheel 105, the folding block 402 is horizontal as a whole, and the overall length of the folding block 402 increases, and the push rod 4 is in a stationary state. At this time, the push rod 4 cannot slide horizontally, and the distance between the straightening wheel 105 and the sliding wheel 104 can be easily adjusted, thereby achieving the effect of an adjustable spring wire ring;

[0070] Example 4: See the attached manual Figure 1 、 4 -9, it can be seen that the difference between Example 4 and Example 1-3 is that the adjustment mechanism further includes a blade 5, a rotating shaft 501 and a weight 502. The rotating shaft 501 is hinged to the grooves of the vertical straightener 101 and the horizontal straightener 102, and the blade 5 and the weight 502 swing at the upper and lower ends of the rotating shaft 501 respectively;

[0071] Among them: blade 5 and weight 502, one end of the blade 5 is connected to the end of the push rod 4, the blade 5 is in a linkage state with the weight 502 through the rotating shaft 501, and the weight 502 weighs 100-200g;

[0072] Among them: when the push rod 4 slides toward one side of the straightening wheel 105, one end of the blade 5 is connected to the end of the push rod 4, and the push rod 4 can drive the blade 5 to swing, and the blade 5 swings downward at the upper end of the rotating shaft 501. At this time, the blade 5 drives the weight 502 to swing upward through the rotating shaft 501. Using the weight of the weight 502, the weight 502 swings upward for a short time, and then the weight 502 can swing downward through the rotating shaft 501. At this time, the blade 5 can drive the push rod 401 to slide back, and the push rod 401 can be squeezed to one side of the folding block 402, and the folding block 402 slides as a whole toward one side of the sliding wheel 104, avoiding excessive clamping force between the sliding wheel 104 and the straightening wheel 105, which causes deformation of the spring steel wire.

Claims

1. A device for reducing residual stress in a spring steel wire, comprising a mounting frame (1), characterized in that: A vertical straightener (101) and a horizontal straightener (102) are distributed on both sides of the upper end of the mounting frame (1), and a fixed wheel (103) is installed on one side of each of the vertical straightener (101) and the horizontal straightener (102). A through rod (202) is passed through the side of the vertical straightener (101) and the horizontal straightener (102) close to the fixed wheel (103). A sliding wheel (104) is slidably connected to the outer side of the through rod (202), and a straightening wheel (105) is provided on the outer side of the through rod (202); The mounting frame (1) is mounted on the upper end of the spring machine, the vertical straightener (101) is arranged vertically at 90 degrees, the horizontal straightener (102) is arranged horizontally at 180 degrees, and the spring steel wire passes through the side of the vertical straightener (101) and the upper end of the horizontal straightener (102); Fixed wheels (103), three fixed wheels (103) are arranged, and the fixed wheels (103) are arranged on the sides of the vertical straightener (101) and the horizontal straightener (102); The vertical straightener (101) and the horizontal straightener (102) are both provided with grooves on one side close to the through rod (202); A penetrating rod (202) and a sliding wheel (104), wherein the penetrating rod (202) penetrates and extends into the interior of the vertical straightener (101) and the transverse straightener (102), the penetrating rod (202), the sliding wheel (104) and the straightening wheel (105) are matched with each other, and four penetrating rods (202) are provided, and the penetrating rods (202) are evenly distributed on the sides of the vertical straightener (101) and the transverse straightener (102); The straightening wheel (105) is provided with grooves on both sides of one end close to the sliding wheel (104), and an adjustment mechanism is provided on one side of the groove close to the sliding wheel (104); One end of the through rod (202) is rotatably sleeved with a screw rod (201), the upper end of the screw rod (201) is spirally sleeved with an adjusting wheel (2), and the inner wall of the groove of the vertical straightener (101) and the horizontal straightener (102) close to the through rod (202) is inlaid with a pad (3); The regulating wheel (2) is distributed at one end of the vertical straightener (101) and the horizontal straightener (102), the regulating wheel (2) is matched with the through rod (202), the screw rod (201) is located inside the vertical straightener (101) and the horizontal straightener (102), and the end of the screw rod (201) away from the regulating wheel (2) is connected to the through rod (202); Pads (3), each of which is in a group of two, and each group of pads (3) is located on both sides of the grooves of the vertical straightener (101) and the horizontal straightener (102), and the pads (3) are in a semicircular arc shape, and the radius of the pads (3) is 0.1-0.2 cm; The adjustment mechanism comprises a push rod (4), a bracket (401) and a folding block (402), wherein the bracket (401) is mounted on one side of the straightening wheel (105), the folding block (402) is slidably nested on the side of the sliding wheel (104) close to the straightening wheel (105), and the push rod (4) is slidably nested on the side of the folding block (402) close to the bracket (401); One end of the push rod (4) away from the sliding wheel (104) extends to the inside of the groove of the straightening wheel (105), and the push rod (4) slides horizontally between the straightening wheel (105) and the sliding wheel (104), and the push rod (4) slides through the inside of the bracket (401); The bracket (401) and the folding block (402) are provided with a hole inside the bracket (401), the push rod (4) passes through the hole, one end of the bracket (401) is connected to the folding block (402), the folding block (402) is horizontally folded and telescopic, and both sides of the folding block (402) are folded in a wave-like manner; The adjustment mechanism further comprises a blade (5), a rotating shaft (501) and a weight (502); the rotating shaft (501) is hinged to the inside of the grooves of the vertical straightener (101) and the horizontal straightener (102); the blade (5) and the weight (502) swing at the upper and lower ends of the rotating shaft (501), respectively.

2. The device for reducing residual stress in spring steel wire according to claim 1, characterized in that: One end of the blade (5) is connected to the end of the push rod (4), and the blade (5) is in a linkage state with the weight (502) via the rotating shaft (501), and the weight (502) weighs 100-200g.

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