Pin shearing and bending device for coil stock

Abstract

The utility model discloses a pin shearing and bending device for coil stock, which comprises a driver, a transmission mechanism, a conveying mechanism, a bending mechanism and a cutting mechanism, the conveying mechanism is used for conveying a workpiece on the coil stock, the bending mechanism and the cutting mechanism are respectively used for bending and cutting pins of the workpiece, and the transmission mechanism comprises a first transmission unit and a second transmission unit. The conveying mechanism is connected with a driving shaft of the driver through the first transmission unit so as to drive a machined part on the conveying mechanism to sequentially penetrate through the bending mechanism and the cutting mechanism, and the bending mechanism and the cutting mechanism are both connected with the driving shaft of the driver through the second transmission unit. The driving mechanism is used for driving the bending mechanism and the cutting mechanism to ascend and descend so as to respectively bend and cut off the pins of the machined part, so that the pins of the machined part are prevented from being manually bent and cut off, and good consistency of the lengths and the bending angles of the pins of the machined part is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a shearing and bending device for coiled materials. Background Art

[0002] Reel-type electronic components are a common way of receiving materials. For example, multiple varistors or surge absorbers are evenly spaced and arranged on a reel tape. The pins at both ends of the varistor are glued and fixed to the tape to achieve reel material transportation and subsequent on-line processing.

[0003] When the two pins of the varistor need to be processed, the operator needs to remove the varistors from the material strip one by one, and then manually shorten or cut the overlong pins of the varistor with needle-nosed pliers, and then manually bend the shortened pins into shape to ensure that the two pins are bent in the same direction. If the operation is done in this way, the operation speed is slow, and the consistency of the pin length and bending angle is very poor, which brings inconvenience to the subsequent plug-in process. Utility Model Content

[0004] Therefore, in order to solve the above problems, the utility model provides a coil leg shearing and bending device to avoid manual bending and cutting of the pins of the workpiece, thereby ensuring good consistency of the length and bending angle of the pins of the workpiece.

[0005] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0006] The utility model provides a coiled material shearing and bending device, comprising a driver, a transmission mechanism, a conveying mechanism for conveying a workpiece on the coiled material, and a bending mechanism and a cutting mechanism for respectively bending and cutting the pins of the workpiece; the transmission mechanism comprises a first transmission unit and a second transmission unit; the conveying mechanism is connected to the driving shaft of the driver through the first transmission unit to drive the workpiece on the conveying mechanism to pass through the bending mechanism and the cutting mechanism in sequence; the bending mechanism and the cutting mechanism are both connected to the driving shaft of the driver through the second transmission unit to drive the bending mechanism and the cutting mechanism to rise and fall, so as to respectively bend and cut the pins of the workpiece.

[0007] Furthermore, the first transmission unit includes a first gear, a second gear, a central gear, a camshaft, a cam follower mounted on the camshaft, and a cam turntable cooperating with the camshaft; the conveying mechanism includes a first feeding wheel and a second feeding wheel arranged at a spacing, and the outer peripheral surfaces of the first feeding wheel and the second feeding wheel are both provided with a pushing pin for driving the coil to move; the camshaft is fixedly connected to the driving shaft of the driver, and the cam turntable, the first gear and the first feeding wheel are arranged to be coaxially fixedly connected, and the second feeding wheel and the second gear are arranged to be coaxially fixedly connected. The first gear and the second gear are respectively meshed with the central gear; the outer peripheral surface of the cam disc has a plurality of slots arranged at equal intervals and an arc-shaped groove arranged between two adjacent slots; the cam follower corresponds to the slot, and the convex portion of the camshaft corresponds to the arc-shaped groove; the camshaft drives the cam disc to rotate, and the cam disc drives the first gear and the first belt wheel to rotate synchronously, thereby driving the central gear, the second gear and the second belt wheel to rotate, so that each workpiece on the coil moves quantitatively along the conveying direction to cooperate with the bending and cutting of the pins of the workpiece.

[0008] Furthermore, the material belt of the coil has a plurality of equally spaced conveying holes, and the pushing pins are detachably inserted into the corresponding conveying holes; the first material wheel and the second material wheel are synchronously rotated to drive the workpiece on the coil to move along the conveying direction to form an upper and lower material arrangement.

[0009] Furthermore, the second transmission unit includes a driven shaft, an eccentric cam mounted on the driven shaft, a connecting handle rotatably mounted on the eccentric cam, and a guide slider hinged to the connecting handle, the driver and the driven shaft are both mounted on a frame, the bending mechanism and the cutting mechanism are both fixed on the guide slider, and the guide slider is slidably mounted on the frame; the driving shaft of the driver and the driven shaft form a transmission connection through a transmission chain, and the eccentric cam and the connecting handle cooperate to drive the guide slider to synchronously rise and fall with the bending mechanism and the cutting mechanism.

[0010] Furthermore, the bending mechanism and the cutting mechanism are arranged at a distance.

[0011] Furthermore, an idler wheel is provided between the driving shaft of the driver and the driven shaft, and the idler wheel is used to adjust the transmission path of the transmission chain.

[0012] Furthermore, the driver is a motor.

[0013] Furthermore, the motor is equipped with a reducer.

[0014] Furthermore, the driver is equipped with a control system, and the output end of the control system is connected to the input end of the driver to control the rotation speed of the driving shaft of the motor.

[0015] Furthermore, a material receiving box for collecting the workpieces is provided below the cutting mechanism.

[0016] The technical solution provided by the utility model has the following beneficial effects:

[0017] The driver drives the conveying mechanism to make each workpiece pass through the bending station and cutting station corresponding to the bending mechanism and the cutting mechanism in turn, and then the driver drives the bending mechanism and the cutting mechanism to rise and fall, so as to bend and cut the pins of the workpiece respectively, and form a beat operation at the same time, so as to avoid manual bending and cutting of the pins of the workpiece, thereby ensuring the consistency of the length and bending angle of the pins of the workpiece, so as to bring convenience to the subsequent plug-in process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows a schematic structural diagram of a coil shearing and bending device equipped with a housing in an embodiment;

[0019] Figure 2 The figure shows a rear view of the shear leg bending device of the coil material without the housing in the embodiment;

[0020] Figure 3 It is a partial schematic diagram of the first viewing angle of the shear leg bending device of the coil material in the embodiment;

[0021] Figure 4 It is a partial schematic diagram of the second viewing angle of the shear leg bending device of the coil material in the embodiment;

[0022] Figure 5 The figure shows a connection diagram of the camshaft, the cam follower and the cam rotating disk in the embodiment. DETAILED DESCRIPTION

[0023] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figures 1 to 4As shown, the present embodiment provides a shearing and bending device for coiled materials (hereinafter referred to as the shearing and bending device), the shearing and bending device comprises a driver 1, a transmission mechanism, a conveying mechanism 6 for conveying a workpiece 7 on the coiled material, and a bending mechanism 2 and a cutting mechanism 3 for respectively bending and cutting the pins of the workpiece 7, the transmission mechanism comprises a first transmission unit 4 and a second transmission unit 5, the conveying mechanism 6 is connected to the driving shaft of the driver 1 through the first transmission unit 4 to drive the workpiece 7 on the conveying mechanism 6 to pass through the bending mechanism 2 and the cutting mechanism 3 in sequence, the bending mechanism 2 and the cutting mechanism 3 are both connected to the driving shaft of the driver 1 through the second transmission unit 5 to drive the bending mechanism 2 and the cutting mechanism 3 to rise and fall, so as to bend and cut the pins of the workpiece 7 respectively.

[0026] In this embodiment, the specific workpiece 7 is an electronic component such as a surge absorber. A plurality of evenly spaced pins of the surge absorber are bonded and fixed on the material strip to form a roll package, and the workpiece 7 is transported in the transport direction from the bending station corresponding to the bending mechanism 2 toward the cutting station corresponding to the cutting mechanism 3.

[0027] The bending mechanism 2 is a bending die belonging to the prior art, and the cutting mechanism 3 is a cutting knife die belonging to the prior art.

[0028] The driver 1 drives the conveying mechanism 6 to pass each workpiece 7 through the bending station and cutting station corresponding to the bending mechanism 2 and the cutting mechanism 3 in turn, and then the driver 1 drives the bending mechanism 2 and the cutting mechanism 3 to rise and fall, so as to bend and cut the pins of the workpiece 7 respectively, and form a beat operation at the same time, so as to avoid manual bending and cutting of the pins of the workpiece 7, thereby ensuring that the length and bending angle of the pins of the workpiece 7 are consistent, so as to facilitate the subsequent plug-in process.

[0029] In another preferred embodiment, Figure 3 and Figure 4 As shown, the first transmission unit 4 includes a first gear 41 , a second gear 42 , a central gear 43 , a camshaft 44 , a cam follower 45 mounted on the camshaft 44 , and a cam rotating disk 46 cooperating with the camshaft 44 .

[0030] The conveying mechanism 6 includes a first material wheel 61 and a second material wheel 62 which are arranged at a distance from each other, and the outer peripheral surfaces of the first material wheel 61 and the second material wheel 62 are both provided with a pushing pin 63 for driving the coil to move, wherein the first material wheel 61 is the feeding end of the conveying mechanism 6, for rolling up the coil and entering the shearing and bending device for processing, and the second material wheel 62 is used as a winding wheel for the material strip that has completed the shearing of the workpiece 7, and cooperates with the first material wheel 61 to complete the conveyance of the workpiece 7.

[0031] The camshaft 44 is fixedly connected to the driving shaft of the driver 1, the cam disc 46, the first gear 41 and the first feeding wheel 61 are arranged to be coaxially fixedly connected, the second feeding wheel 62 and the second gear 42 are arranged to be coaxially fixedly connected, the first gear 41 and the second gear 42 are respectively meshed with the center gear 43, the outer peripheral surface of the cam disc 46 has a plurality of equally spaced notches 461 and an arc-shaped groove 462 arranged between two adjacent notches 461, the cam follower 45 corresponds to the notch 461, and the convex part of the camshaft 44 corresponds to the arc-shaped groove 462, the driver 1 drives the camshaft 44 to rotate, the camshaft 44 drives the cam disc 46 to rotate, the cam disc 46 drives the first gear 41 and the first feeding wheel 61 to rotate synchronously, and then drives the center gear 43, the second gear 42 and the second feeding wheel 62 to rotate, so that each workpiece 7 on the coil is quantitatively moved along the conveying direction to cooperate with the bending and cutting of the pins of the workpiece 7.

[0032] In this embodiment, the driver 1 is a motor equipped with a reducer 11, and the driver 1 is also equipped with a control system. The specific control system integrates a single-chip microcomputer belonging to the prior art. The output end of the control system is connected to the input end of the driver 1 to control the rotation speed of the drive shaft of the motor.

[0033] Under the joint constraints of the first transmission unit 4 and the second transmission unit 5, the motor drives the camshaft 44 equipped with the cam follower 45 to rotate. Figure 5 The convex portion of the camshaft 44 shown is against the groove wall of the arc-shaped groove 462 of the cam disc 46 to drive the cam disc 46 to follow the rotation. At the same time, the cam follower 45 is inserted into and leaves the groove 461 of the cam disc 46 in sequence at a certain time interval, and the first gear 41 and the first feeding wheel 61 coaxially fixed with the cam disc 46 also rotate accordingly. At this time, the first gear 41 drives the center gear 43 to rotate, and the center gear 43 drives the second gear 42 to rotate, and finally the second feeding wheel 62 coaxially fixed with the second gear 42 also rotates together. In this way, the conveying mechanism 6, the bending mechanism 2 and the cutting mechanism 3 of the shear foot bending device can be coordinated in rhythm to ensure that the shear foot bending device bends and cuts the pins of the workpiece 7 according to a certain rhythm.

[0034] The material strip of the coil has a plurality of equally spaced conveying holes. When the material strip of the coil is placed on the first belt wheel 61, the push pin 63 can be detachably inserted into the corresponding conveying holes, and by synchronously rotating the first belt wheel 61 and the second belt wheel 62, the workpiece 7 on the coil is driven to move along the conveying direction to form an upper and lower material arrangement.

[0035] In addition, a material receiving box 10 for collecting the workpiece 7 is provided below the cutting mechanism 3, so that after the pins of the workpiece 7 are cut off by the cutting mechanism 3, it is convenient for the workpiece 7 to fall from the material belt and fall into the material receiving box 10 located below to complete the material receiving operation.

[0036] In another preferred embodiment, Figure 2 and Figure 3 As shown, the second transmission unit 5 includes a driven shaft 51, an eccentric cam 52 mounted on the driven shaft 51, a connecting handle 53 rotatably mounted on the eccentric cam 52, and a guide slider 54 hinged to the connecting handle 53, and the driver 1 and the driven shaft 51 are both mounted on a frame 8, wherein the driver 1 is fixed on the frame 8, the driven shaft 51 is rotatably penetrated in the frame 8, and the eccentric cam 52 is fixed to one end of the driven shaft 51 facing the bending mechanism 2 or the cutting mechanism 3, and the other end of the driven shaft 51 is transmission-connected to the driving shaft of the motor.

[0037] The bending mechanism 2 and the cutting mechanism 3 are both fixed on the guide slider 54, and the guide slider 54 can be slidably assembled on the frame 8. The driving shaft and the driven shaft 51 of the driver 1 form a transmission connection through a transmission chain 56, and the eccentric cam 52 and the connecting handle 53 cooperate to drive the guide slider 54 to synchronously rise and fall with the bending mechanism 2 and the cutting mechanism 3.

[0038] In this specific embodiment, the bending mechanism 2 and the cutting mechanism 3 are arranged at a distance and are fixed on both sides of the guide slider 54, and the conveying mechanism 6, the bending mechanism 2 and the cutting mechanism 3 are all located on one side of the frame 8, and the motor is located on the other side of the frame 8.

[0039] The frame 8 has a guide rail that matches the guide slider 54. The guide slider 54 is slidably assembled on the guide rail 81 to ensure that the guide slider 54 can only slide along the extension direction of the guide rail 81. The extension direction of the guide rail is the rising and falling direction of the bending mechanism 2 and the cutting mechanism 3.

[0040] When the driving shaft of the motor rotates, the driven shaft 51 is driven to rotate along through the transmission chain 56, so as to drive the eccentric cam 52 to rotate in the connecting handle 53, and then drive the connecting handle 53 to rotate around the hinge point formed between the connecting handle 53 and the guide slider 54, while the hinge point also moves up and down accordingly. At this time, the bending mechanism 2 and the cutting mechanism 3 fixed on the guide slider 54 also rise and fall accordingly to provide driving force for bending and cutting the pins of the workpiece 7.

[0041] Of course, in other embodiments, the transmission chain 56 may also be replaced by a transmission gear set, so that the transmission connection between the driven shaft 51 and the driving shaft of the motor can also be achieved.

[0042] Further preferably, an idler wheel 55 is provided between the driving shaft of the driver 1 and the driven shaft 51 , and the idler wheel 55 is used to adjust the transmission path of the transmission chain 56 .

[0043] In addition, in order to optimize the appearance of the shear leg bending device, the frame 8 is equipped with a shell 9, which covers the frame 8 and forms a whole. The shear leg bending device has a simple structure, low cost, and small space occupation, and is also easy to be placed on the production line.

[0044] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A coil shearing and bending device, characterized in that: It includes a driver, a transmission mechanism, a conveying mechanism for conveying the workpiece on the coil, and a bending mechanism and a cutting mechanism for respectively bending and cutting the pins of the workpiece; The transmission mechanism comprises a first transmission unit and a second transmission unit; The conveying mechanism is connected to the driving shaft of the driver through the first transmission unit to drive the workpiece on the conveying mechanism to pass through the bending mechanism and the cutting mechanism in sequence; The bending mechanism and the cutting mechanism are both connected to the driving shaft of the driver through the second transmission unit to drive the bending mechanism and the cutting mechanism to rise and fall, so as to bend and cut the pins of the workpiece respectively.

2. The coil leg shearing and bending device according to claim 1, characterized in that: The first transmission unit includes a first gear, a second gear, a central gear, a camshaft, a cam follower mounted on the camshaft, and a cam disc matched with the camshaft; the conveying mechanism includes a first material wheel and a second material wheel arranged at intervals, and the outer peripheral surfaces of the first material wheel and the second material wheel are both provided with a push pin for driving the coil to move; the camshaft is fixedly connected to the driving shaft of the driver, the cam disc, the first gear and the first material wheel are arranged to be coaxially fixedly connected, the second material wheel and the second gear are arranged to be coaxially fixedly connected, and the first gear and the second gear are respectively engaged with the central gear; the outer peripheral surface of the cam disc has a plurality of notches arranged at equal intervals and an arc-shaped groove arranged between two adjacent notches; the cam follower corresponds to the notch, and the convex part of the camshaft corresponds to the arc-shaped groove; the camshaft drives the cam disc to rotate, and the cam disc drives the first gear and the first material wheel to rotate synchronously, thereby driving the central gear, the second gear and the second material wheel to rotate, so that each workpiece on the coil moves quantitatively along the conveying direction to cooperate with the bending and cutting of the pins of the workpiece.

3. The coil leg shearing and bending device according to claim 2, characterized in that: The material belt of the coil has a plurality of equally spaced conveying holes, and the push pins are detachably inserted into the corresponding conveying holes; the first material wheel and the second material wheel are synchronously rotated to drive the workpiece on the coil to move along the conveying direction to form an upper and lower material setting.

4. The coil leg shearing and bending device according to claim 1, characterized in that: The second transmission unit includes a driven shaft, an eccentric cam mounted on the driven shaft, a connecting handle rotatably mounted on the eccentric cam, and a guide slider hinged to the connecting handle. The driver and the driven shaft are both mounted on a frame, the bending mechanism and the cutting mechanism are both fixed to the guide slider, and the guide slider is slidably mounted on the frame; the driving shaft of the driver and the driven shaft form a transmission connection through a transmission chain, and the eccentric cam and the connecting handle cooperate to drive the guide slider to synchronously rise and fall with the bending mechanism and the cutting mechanism.

5. The coil leg shearing and bending device according to claim 4, characterized in that: The bending mechanism and the cutting mechanism are arranged at a distance.

6. The coil leg shearing and bending device according to claim 4 or 5, characterized in that: An idler wheel is also arranged between the driving shaft of the driver and the driven shaft, and the idler wheel is used to adjust the transmission path of the transmission chain.

7. The coil leg shearing and bending device according to any one of claims 1 to 5, characterized in that: The driver is a motor.

8. The coil leg shearing and bending device according to claim 7, characterized in that: The motor is equipped with a reducer.

9. The coil leg shearing and bending device according to claim 7, characterized in that: The driver is equipped with a control system, and the output end of the control system is connected to the input end of the driver to control the rotation speed of the driving shaft of the motor.

10. The coil leg shearing and bending device according to any one of claims 1 to 5, characterized in that: A material receiving box for collecting the workpieces is arranged below the cutting mechanism.

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