Steel wire straightening and cutting device

Abstract

The present invention discloses a steel wire straightening and cutting device, comprising a clamping mechanism, a cutting mechanism and a traction mechanism, wherein the traction mechanism comprises a driving cam, a connecting rod, a pushing slide block and a slide rail, the clamping mechanism comprises a pad and a pressure plate, and further comprises a transmission rod and a bracket, wherein the middle section of the transmission rod is rotatably connected to the bracket, one end of the transmission rod contacts the outer edge of the driving cam, and the other end is connected to the pressure plate. Compared with the prior art, the present invention has the following advantages: the production efficiency is greatly improved by straightening and cutting multiple groups of steel wires at the same time; the required length of steel wire can be cut by adjustment; a single motor drives multiple devices, which greatly reduces energy consumption, saves production costs, and improves economic benefits.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical manufacturing, and in particular to a steel wire straightening and cutting device. Background Art

[0002] Our country is a major user of bearings. The needle rollers of rolling bearings are usually made of steel wire. Steel wire has the characteristics of good toughness and high structural strength. Steel wire is usually made in a certain shape. Steel wire is usually collected by a wire roller before use. It needs to be straightened when it is made into a needle roller. The bent steel wire will greatly affect the normal use and performance of the needle roller. In addition, the straightening and shearing of steel wire on the market are currently inefficient and have high production energy consumption. For this reason, we have proposed a high-efficiency steel wire straightening and shearing device, which can drive multiple straightening and shearing devices through a single motor, greatly improving productivity and reducing production energy consumption. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a steel wire straightening and cutting device.

[0004] The present invention is realized through the following technical scheme: a steel wire straightening and cutting device, comprising a clamping mechanism, a cutting mechanism and a traction mechanism. The steel wire passes through the clamping mechanism and the cutting mechanism in sequence under the traction of the traction mechanism. The traction mechanism comprises a driving cam, a connecting rod, a pushing slider and a slide rail. The clamping mechanism comprises a pad and a pressure plate. The slide rail is arranged along the movement direction of the steel wire. The pushing slider is arranged on the slide rail. One end of the connecting rod is rotatably connected to the pushing slider, and the other end is rotatably connected to the edge of the driving cam. The connection point between the connecting rod and the driving cam is arranged at the edge of the base circle of the driving cam; the steel wire straightening and cutting device also comprises a transmission rod and a bracket. The middle section of the transmission rod is rotatably connected to the bracket. One end of the transmission rod contacts the outer edge of the driving cam, and the other end is connected to the pressure plate. A pulling hole and a pulling screw are arranged on the pushing slider, and the end of the pulling screw passes through the pushing slider and extends into the pulling hole.

[0005] As a further improvement to the above scheme, the clamping mechanism, the cutting mechanism and the traction mechanism are all arranged on the base plate, and a guide hole plate is also arranged on the base plate, and the guide hole plate is arranged on the upstream side of the traction mechanism, the clamping mechanism and the cutting mechanism.

[0006] As a further improvement to the above solution, a pressing rubber pad is provided at the bottom of the pressing plate.

[0007] As a further improvement to the above solution, more than one pulling hole and pulling screw are provided on the pushing slider.

[0008] As a further improvement to the above scheme, it also includes a straightening roller, which is arranged at the upstream end of the traction mechanism and is arranged on the base plate through an elevated bracket.

[0009] As a further improvement to the above solution, the cutting mechanism includes a cutter and an anvil, wherein the cutter is arranged directly above the anvil, and the cutter is connected to the same end of the transmission rod as that of the pressure plate.

[0010] As a further improvement to the above solution, the cutter and the pressure plate are rotatably connected to the transmission rod via a transmission frame.

[0011] As a further improvement to the above scheme, a reset device is provided above the cutter and the pressure plate. The reset device is fixed by connecting to a fixed plate extending upward from the base plate. The reset device includes a reset spring, a bracket plate and a baffle. A hole is provided in the middle of the bracket plate, and the transmission frame passes through the hole. The baffle is fixedly connected to the transmission frame, and the reset spring is provided between the baffle and the bracket plate.

[0012] Compared with the prior art, the present invention has the following advantages: the steel wire straightening and shearing device can straighten and shear the steel wire before use, which is convenient for subsequent processing and reduces processing errors; the steel wire straightening and shearing device can drive multiple straightening and shearing devices through a single motor, which greatly improves productivity and reduces production energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention. DETAILED DESCRIPTION

[0014] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0015] A wire straightening and cutting device, comprising a clamping mechanism, a cutting mechanism and a traction mechanism. The wire passes through the clamping mechanism and the cutting mechanism in sequence under the traction of the traction mechanism. The traction mechanism comprises a driving cam 11, a connecting rod 12, a pushing slider 13 and a slide rail 14. The clamping mechanism comprises a pad 21 and a pressure plate 22. The slide rail 14 is arranged along the moving direction of the wire. The pushing slider 13 is arranged on the slide rail 14. One end of the connecting rod 12 is rotatably connected to the pushing slider 13, and the other end is connected to the edge of the driving cam 11. The connecting rod 12 is rotatably connected to the driving cam 11, and the connecting point between the connecting rod 12 and the driving cam 11 is arranged at the edge of the base circle of the driving cam 11; the wire straightening and cutting device also includes a transmission rod 31 and a bracket 32, the middle section of the transmission rod 31 is rotatably connected to the bracket 32, one end of the transmission rod 31 is in contact with the outer edge of the driving cam 11, and the other end is connected to the pressure plate 22; a pulling hole 131 and a pulling screw 132 are arranged on the pushing slider 13, and the end of the pulling screw 132 passes through the pushing slider 13 and extends into the pulling hole 131. After the steel wire is passed through the pulling hole 131, it is placed in the clamping mechanism, and the driving cam 11 is rotated. When the connecting rod 12 pulls the pushing slider 13 back, the convex side of the driving cam 11 pushes up the transmission rod 31, and the other end of the transmission rod 31 presses the pressing plate 22 downward, thereby fixing the free end of the steel wire, and adjusting the tightening degree of the pulling screw 132 to make the pulling screw 132 and the steel wire slide, so as to achieve "empty pulling"; when the driving cam 11 is pushed forward, the base circle side of the driving cam 11 contacts the transmission rod 31, and the transmission The other end of the rod 31 is lifted to release the clamping mechanism, and the pulling screw 132 clamps and pushes the wire forward, thus realizing a round of "feeding" operation. The cutting mechanism and the clamping mechanism move synchronously to achieve immediate cutting after clamping. In the "empty pulling" process, not only is the push slider 13 returned to its original position, but also additional pulling force is applied to the wire. In this process, the pulling screw 132 rubs on the surface of the wire to reduce the stress inside it, ensuring that the wire can remain straight after the pulling force disappears, thereby ensuring the accuracy of the cutting length and the qualified rate of the product.

[0016] The clamping mechanism, the cutting mechanism and the traction mechanism are all arranged on the base plate 4. A guide hole plate 5 is also arranged on the base plate 4. The guide hole plate 5 is arranged on the upstream side of the traction mechanism, the clamping mechanism and the cutting mechanism. The steel wire passes through the hole on the guide hole plate 5 to help further straighten it, so that the quality of the cut product meets the requirements and improves the authenticity rate.

[0017] A compression rubber pad 221 is provided at the bottom of the pressing plate 22. The compression rubber pad 221 can provide a buffer to prevent the clamping mechanism from deforming the wire clamp, and the rubber can provide a strong friction force to ensure the firmness of the clamping.

[0018] The push slide block 13 is provided with more than one pulling hole 131 and pulling screw 132. Such a setting can straighten and cut multiple groups of steel wires at the same time, greatly improving the processing efficiency.

[0019] It also includes a straightening roller 6, which is arranged at the upstream end of the traction mechanism and is arranged on the base plate 4 through an elevated bracket 61. The steel wire passes over the straightening roller 6, passes through the lower guide hole plate 5, and is then pulled by the traction mechanism. In this way, the steel wire is bent in opposite directions through the straightening roller 6 and the guide hole plate 5 during the process of entering, thereby eliminating the stress of the original rolled steel wire.

[0020] The cutting mechanism includes a cutter 71 and an anvil 72 . The cutter 71 is arranged directly above the anvil 72 . The cutter 71 is connected to the same end of the transmission rod 31 as that of the pressing plate 22 .

[0021] The cutter 71 and the pressing plate 22 are rotatably connected to the transmission rod 31 via the transmission frame 8 .

[0022] A reset device is provided above the cutter 71 and the pressure plate 22. The reset device is fixed by connecting to a fixed plate 91 extending upward from the base plate 4. The reset device includes a reset spring 93, a bracket plate 92 and a baffle plate 94. A hole is provided in the middle of the bracket plate 92, and the transmission frame 8 passes through the hole. The baffle plate 94 is fixedly connected to the transmission frame 8, and the reset spring 93 is provided between the baffle plate 94 and the bracket 32 ​​plate.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel wire straightening and cutting device, comprising a clamping mechanism, a cutting mechanism and a traction mechanism, wherein the steel wire passes through the clamping mechanism and the cutting mechanism in sequence under the traction of the traction mechanism, and is characterized in that: The traction mechanism includes a driving cam, a connecting rod, a pushing slider and a slide rail, the clamping mechanism includes a pad and a pressure plate, the slide rail is arranged along the moving direction of the steel wire, the pushing slider is arranged on the slide rail, one end of the connecting rod is rotatably connected to the pushing slider, and the other end is rotatably connected to the edge of the driving cam, and the connection point between the connecting rod and the driving cam is arranged at the edge of the base circle of the driving cam; the steel wire straightening and cutting device also includes a transmission rod and a bracket, the middle section of the transmission rod is rotatably connected to the bracket, one end of the transmission rod is in contact with the outer edge of the driving cam, and the other end is connected to the pressure plate; a pulling hole and a pulling screw are arranged on the pushing slider, and the end of the pulling screw passes through the pushing slider and extends into the pulling hole; The pushing slider is provided with more than one pulling hole and pulling screw; The cutting mechanism comprises a cutter and an anvil, wherein the cutter is arranged directly above the anvil, and the cutter is connected to the same end of the transmission rod as the pressing plate; The cutter and the pressing plate are rotatably connected to the transmission rod via a transmission frame; A reset device is provided above the cutter and the pressure plate, and the reset device comprises a reset spring, a bracket plate and a baffle plate. A hole is provided in the middle of the bracket plate, and the transmission frame passes through the hole. The baffle plate is fixedly connected to the transmission frame, and the reset spring is provided between the baffle plate and the bracket plate. After the steel wire is passed through the pulling hole, it is placed in the clamping mechanism, and the driving cam rotates. When the connecting rod pulls the pushing slider back, the convex side of the driving cam lifts the transmission rod, and the other end of the transmission rod presses the pressure plate downward, thereby fixing the free end of the steel wire. The tightening degree of the pulling screw is adjusted to make the pulling screw and the steel wire slide. When the driving cam is pushed forward, the base circle side of the driving cam contacts the transmission rod, and the other end of the transmission rod is lifted to release the clamping mechanism. The pulling screw clamps the steel wire and pushes it forward. The action of the cutting mechanism is synchronized with that of the clamping mechanism, and the cutting is realized immediately after clamping. The clamping mechanism, the cutting mechanism and the traction mechanism are all arranged on the base plate, and a guide hole plate is also arranged on the base plate, and the guide hole plate is arranged on the upstream side of the traction mechanism, the clamping mechanism and the cutting mechanism; It also includes a straightening roller, which is arranged at the upstream end of the traction mechanism and is arranged on the base plate through an elevated bracket; the steel wire passes over the straightening roller, passes through a lower guide hole plate, and is then pulled by the traction mechanism.

2. A wire straightening and cutting device as claimed in claim 1, characterized in that: A pressing rubber pad is arranged at the bottom of the pressing plate.

Images