Diode straightening mechanism and device

Abstract

The present invention discloses a diode straightening mechanism and a device thereof, comprising a differential assembly, a driving assembly and a wire chasing assembly; the differential assembly comprises a second turntable and two discs, a plurality of fixing grooves are provided on the outer wall of the second turntable, the plurality of fixing grooves are evenly arranged along the circumference of the second turntable, the two discs are symmetrically arranged on both sides of the second turntable, the opposite sides of the two discs are both in sliding contact with the second turntable, a plurality of protrusions are provided on the outer wall of the disc, the plurality of protrusions are sequentially connected end to end along the circumference of the disc, and the width of each protrusion decreases sequentially along the rotation direction of the disc; the driving assembly drives the second turntable and the two discs to rotate coaxially and in the same direction, and the rotation speeds of the two discs are the same; the technical problem that the lead wire is subjected to uneven force and the straightening effect is poor in the process of straightening of the diode straightening mechanism and the device of the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of diodes, and in particular to a diode straightening mechanism and a device thereof. Background Art

[0002] The diode is a basic electronic device with a wide range of applications. It consists of a PN junction and two leads. The leads cannot be bent during the production process, so they need to be straightened before they can be packaged.

[0003] Most of the existing diode straightening mechanisms and devices use two relatively moving planes to straighten the leads. Since one end of the lead is connected to the PN junction, it is pulled by the PN junction during the straightening process, resulting in uneven force on the lead and poor straightening effect. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies, provide a diode straightening mechanism and device thereof, and solve the technical problems of uneven force on the lead wires and poor straightening effect during the straightening process of the diode straightening mechanism and device thereof in the prior art.

[0005] In order to achieve the above technical purpose, the technical solution of the present invention provides a diode straightening mechanism and a device thereof, including a differential assembly, a driving assembly and a wire chasing assembly;

[0006] The differential assembly comprises a second rotating disk and two circular disks, a plurality of fixing grooves are provided on the outer wall of the second rotating disk, the plurality of fixing grooves are evenly arranged along the circumference of the second rotating disk, the two circular disks are symmetrically arranged on both sides of the second rotating disk, the opposite sides of the two circular disks are both in sliding contact with the second rotating disk, a plurality of protrusions are provided on the outer wall of the circular disk, the plurality of protrusions are sequentially connected end to end along the circumference of the circular disk, and the width of each protrusion is sequentially reduced along the rotation direction of the circular disk;

[0007] The driving assembly drives the second rotating disk and the two circular disks to rotate coaxially and in the same direction, the two circular disks have the same rotation speed, and the rotation speed of the second rotating disk is less than the rotation speed of the circular disks;

[0008] The wire chasing assembly has two second arc-shaped surfaces, and the two second arc-shaped surfaces correspond to the two disks one by one. A gap is formed between each second arc-shaped surface and the corresponding raised portion on the disk.

[0009] Compared with the prior art, the beneficial effects of the present invention include: due to the speed difference between the second turntable and the disc, the friction between the lead of the diode and the disc causes the lead to rotate, and at the same time, through the provision of multiple protrusions, the width along the rotation direction of the disc is gradually reduced, so when the lead passes through the gap between the chasing wire assembly and the disc, the force applied to the lead of the diode is a gradual force from the end close to the PN junction to the outside, just like our manual operation, chasing from the end close to the PN junction to the outside, compared with the traditional planar mechanical straightening, the diode straightening effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0011] Figure 2 is a schematic diagram of the internal structure in an embodiment of the present invention;

[0012] Figure 3 is a schematic structural diagram of a material transfer assembly in an embodiment of the present invention;

[0013] Figure 4 is a schematic structural diagram of a differential assembly in an embodiment of the present invention;

[0014] Figure 5 In the embodiment of the present invention Figure 4 A cross-sectional view of

[0015] Figure 6 is a schematic diagram of the structure of a drive assembly in an embodiment of the present invention;

[0016] Figure 7 is a structural schematic diagram of a wire chasing assembly in an embodiment of the present invention;

[0017] Figure 8 It is a structural schematic diagram of the connection between the discharging mechanism and the material shifting assembly in an embodiment of the present invention;

[0018] Fig. 9 The present invention Figure 8 Enlarged schematic diagram of part A in the middle. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] It should be noted that the words “straighten” mentioned in the present application mean to straighten the bent leads on both sides of the diode.

[0021] like Figure 1-2As shown, the present invention provides a diode straightening mechanism 300 including a differential assembly 320, a driving assembly 330 and a wire chasing assembly 340, which will be described in detail below.

[0022] The differential assembly 320 in this embodiment includes a second turntable 322 and two discs 324. A plurality of fixing grooves are provided on the outer wall of the second turntable 322. The plurality of fixing grooves are evenly arranged along the circumference of the second turntable 322. The two discs 324 are symmetrically arranged on both sides of the second turntable 322. The opposite sides of the two discs 324 are both in sliding contact with the second turntable 322. A plurality of protrusions 3241 are provided on the outer wall of the disc 324. The plurality of protrusions 3241 are sequentially connected end to end along the circumference of the disc 324. The width of each protrusion 3241 decreases sequentially along the rotation direction of the disc 324.

[0023] Preferably, Figure 4 As shown, the differential assembly 320 includes a second shaft 321, a second rotating disk 322, a second gear 323, two disks 324 and two third gears 325. The second shaft 321 passes through one of the third gears 325, one of the disks 324, the second rotating disk 322, another disk 324 and another third gear 325 in sequence. The second shaft 321 is fixedly connected to the second rotating disk 322. The two third gears 325 are both rotatably connected to the second shaft 321. The opposite sides of the two third gears 325 are respectively fixedly connected to the two disks 324. The opposite sides of the two disks 324 are slidably connected to the second rotating disk 322. The second gear 323 is sleeved on the second shaft 321.

[0024] Preferably, the protrusion 3241 is in the shape of a right-angled triangle, and the right-angled side of the protrusion 3241 is attached to the outer edge of the corresponding disk 324 on the side close to the other disk 324 .

[0025] like Figure 5 As shown, the second turntable 322 and the second rotating shaft 321 in the present application adopt a key and keyway cooperation mode. Specifically, a key is installed on the inner wall of the second turntable 322, and the key card is embedded in the keyway opened on the outer wall of the second rotating shaft.

[0026] In the present application, the third gear 325 is connected to the second rotating shaft 321 via a bearing 3251. Specifically, the inner wall of the bearing 3251 is connected to the outer wall of the second rotating shaft 321, and the outer wall of the bearing 3251 is connected to the inner wall of the third gear 325. Similarly, the disc 324 and the second rotating shaft 321 are also rotatably connected by a bearing.

[0027] Preferably, Figure 3As shown, the diode straightening mechanism 300 in this embodiment also includes a material transfer assembly 310, which includes a first rotating shaft 311, a first gear 312, a first rotating disk 313 and a baffle 314. The first rotating shaft 311 is arranged in parallel with the second rotating shaft 321, the first gear 312 is sleeved on the first rotating shaft 311, the first gear 312 and the second gear 323 are meshed, the first rotating disk 313 is sleeved on the first rotating shaft 311, a plurality of fixing grooves are opened on the first rotating disk 313, and the plurality of fixing grooves are evenly arranged along the circumference of the first rotating disk 313. The other side of the first rotating disk 313 abuts against the second rotating disk 322, the fixing groove on the first rotating disk 313 is opposite to the fixing groove on the second rotating disk 322, the baffle 314 is located directly below the first rotating disk 313, and the baffle 314 has a first arcuate surface 3141 on the side close to the first rotating disk 313, and the first arcuate surface 3141 is in contact with the outer edge of the first rotating disk 313.

[0028] Through the above structure, the diode slides in the feed guide rail 250, the PN junction of the diode slides along the square groove formed by the two long grooves, and the leads on both sides of the diode slide along the gap between the first guide plate 230 and the second guide plate 240, which can ensure that the diode falls into the fixed groove when moving. Of course, it is not limited to the above structure, and it only needs to realize the above feeding function.

[0029] Through the rotation of the first turntable 313, the feed end and the second turntable 322 can be well connected. The size of the first turntable 313 in the present application is the same as that of the second turntable 322. Through the engagement of the first gear 312 and the second gear 323, the first gear 312 and the second gear 323 are the same size. At this time, the rotation speeds of the first rotating shaft 311 and the second rotating shaft 321 are the same. Therefore, the rotation speeds of the first turntable 313 and the second turntable 322 are the same. The fixed grooves on the first turntable 313 correspond to the fixed grooves on the second turntable 322 one by one. The bottom of the first turntable 313 cooperates with the first curved surface 3141 of the baffle 314. Compared with the second turntable 322, more diodes can be placed on the first turntable 313, thereby speeding up the efficiency of conveying diodes.

[0030] Preferably, the diode straightening mechanism 300 also includes a material shifting assembly 350, which is located directly above the second turntable 322. The bottom of the material shifting assembly 350 has an arc surface, which fits with the outer wall of the second turntable 322. Since the diode is small in size and light in weight, the diode is prevented from falling off the slot 3132 on the first turntable 313.

[0031] Furthermore, fixed grooves are used on both the first turntable 313 and the second turntable 322 to control the feeding speed. Only when the slots 3132 on the first turntable 313 are facing the slots 3132 on the second turntable 322, the diodes on the first turntable 313 can fall into the slots 3132 on the second turntable 322. By setting the spacing between the slots 3132, the larger the spacing, the faster the feeding speed. Of course, it does not mean that the faster the better. In the present application, the spacing between two adjacent slots 3132 is thirty degrees. A maximum of twelve diodes can be placed on the first turntable 313.

[0032] The driving assembly 330 in this embodiment drives the second rotating disk 322 and the two disks 324 to rotate coaxially and in the same direction. The two disks 324 have the same rotation speed, and the rotation speed of the second rotating disk 322 is lower than that of the disks 324 .

[0033] The driving assembly 330 includes a first driving member and a second driving member. The first driving member drives the second rotating disk 322 to rotate, and the second driving member drives the disc 324 to rotate. The rotation speed of the first driving member is lower than the rotation speed of the second driving member.

[0034] Preferably, the driving assembly 330 used in this embodiment drives the second gear 323 and the third gear 325 to rotate, so that the angular velocity of the second gear 323 is smaller than the angular velocity of the third gear 325 .

[0035] Specifically, the rotation of the disc 324 is driven by the rotation of the third gear 325, and the rotation of the second turntable 322 is driven by the rotation of the second shaft 321. Since the rotation speed of the third gear 325 is greater than the rotation speed of the second turntable 322, when the differential mechanism is working, the second turntable 322 and the disc 324 rotate coaxially, but the rotation speed of the second turntable 322 is lower than that of the disc 324, so that the disc 324 and the lead of the diode rub against each other, driving the lead to rotate.

[0036] like Figure 6 As shown, preferably, the driving assembly 330 includes a motor 331, a driving gear 332, a third rotating shaft 333, two fourth gears 334 and a fifth gear 335, the driving gear 332 is sleeved on the driving shaft of the motor 331, the third rotating shaft 333 and the second rotating shaft 321 are parallel to each other, the two fourth gears 334 and the fifth gear 335 are both sleeved on the third rotating shaft 333, the two fourth gears 334 are respectively meshed with the two third gears 325, and the fifth gear 335 is meshed with the second gear 323.

[0037] The outer wall of the second rotating disk 322 is provided with a plurality of fixing grooves which are evenly arranged along the circumference of the second rotating disk 322 . The diodes are embedded in the fixing grooves, and the leads at both ends of the diodes protrude from the fixing grooves and are attached to the disks 324 on both sides.

[0038] like Figure 7 As shown, the wire chasing assembly 340 in this embodiment has two second arcuate surfaces 3431 , and the two second arcuate surfaces 3431 correspond to the two disks 324 one by one, and a gap is formed between each second arcuate surface 3431 and the protrusion 3241 on the corresponding disk 324 .

[0039] Preferably, the wire chasing assembly 340 includes a bracket 341, a fixed shaft 342, two pressure plates 343 and two cylinders 344. The fixed shaft 342 and the second rotating shaft 321 are parallel to each other. The two pressure plates 343 are rotatably connected to the fixed shaft 342. The two pressure plates 343 correspond to the two cylinders 344 one-to-one. The telescopic end of each cylinder 344 is hinged to one side of the corresponding pressure plate 343. The other side of each pressure plate 343 forms a second arc surface 3431. The two arc surfaces correspond to the two disks 324 one-to-one. A gap is formed between the outer wall of the disk 324 and the corresponding second arc surface 3431.

[0040] The cylinder 344 drives the pressing plate 343 to rotate around the fixed shaft 342, so that the size of the gap between the second arc surface 3431 and the outer wall of the disk 324 can be adjusted, which is more flexible to use.

[0041] The diode straightening device includes the above-mentioned diode straightening mechanism 300, and also includes a frame 100, a feeding mechanism 200 and a discharging mechanism 400. The feeding mechanism 200, the diode straightening mechanism 300 and the discharging mechanism 400 are all fixed on the frame 100. Along the rotation direction of the second turntable 322, the wire chasing assembly 340 is located between the feeding mechanism 200 and the discharging mechanism 400. The feeding mechanism 200 guides the diode into the fixed groove of the second turntable 322, and completes the entire straightening process through the diode straightening mechanism 300. The discharging mechanism 400 guides the diode on the second turntable 322, which is explained in more detail below.

[0042] The function of the feeding mechanism 200 in this embodiment is to introduce the diode into the fixed groove on the second turntable 322. It should be noted that the fixed groove in the present application is composed of an annular groove 3131 and two groups of slots 3132. The annular groove 3131 is formed on the outer wall of the second turntable 322. The two groups of slots 3132 are respectively located on the outer edges of both sides of the second turntable 322. Each group of slots 3132 includes multiple slots 3132. The multiple slots 3132 in each group are evenly arranged along the circumference of the second turntable 322. Each slot 3132 is connected to the annular groove 3131. The multiple slots 3132 in one group correspond to the multiple slots 3132 in the other group. The PN junction of the diode is embedded in the annular groove 3131, and the leads at both ends of the diode pass through the slots 3132 on both sides respectively. Therefore, the feeding mechanism 200 should be able to introduce the diode into the fixed groove in the above manner.

[0043] Preferably, the feeding mechanism 200 includes a fixed frame 210, a connecting plate 220, a first guide plate 230 and a second guide plate 240. The fixed frame 210 is fixed on the frame 100, the connecting plate 220 is connected to the fixed frame 210, the first guide plate 230 and the second guide plate 240 are both fixed on the connecting plate 220, and a feeding track is formed between the first guide plate 230 and the second guide plate 240. The diode slides along the length direction of the feeding guide rail 250, and the discharge end of the feeding guide rail 250 faces the fixed groove on the second turntable 322.

[0044] Among them, the feed guide rail 250 is formed by the gap between the first guide plate 230 and the second guide plate 240. Long grooves are opened on the opposite sides of the first guide plate 230 and the second guide plate 240. The PN junction of the diode moves along the length direction of the long groove. The leads on both sides of the diode are located outside the long groove and between the first guide plate 230 and the second guide plate 240.

[0045] like Figure 7 As shown, the discharging mechanism 400 in this embodiment has a discharging guide rail, and the side of the discharging mechanism 400 close to the disc 324 has two baffles 314, and the two baffles 314 are fixed on the discharging mechanism 400, and the two baffles 314 correspond to the two discs 324 one by one, and one end of the two baffles 314 passes through the movement track of the leads at both ends of the diode on the fixing groove of the disc 324, and the other end of the two baffles 314 is connected to the feed end of the discharging mechanism 400.

[0046] The structure of the material discharging mechanism 400 in the present application is similar to that of the material feeding mechanism 200, both of which have a material guiding track. The difference is that the material discharging mechanism 400 also includes two stoppers 420, such as Figure 8-9 As shown, it is used to guide the diode after chasing the wire into the discharge track 410.

[0047] Working process: The diode can be put into the feeding guide rail 250 of the feeding mechanism 200 by the vibration plate or manually. The diode moves downward along the feeding guide rail 250 until it moves to abut against the first rotating disk 313. The first rotating disk 313 rotates, and the leads on both sides of the diode are inserted into the slots 3132. As the first rotating disk 313 continues to rotate, the diode moves to the second disk 324 at the lower left (for ease of understanding, the position relationship is as shown in FIG. Figure 2As shown), until the leads on both sides of the diode are inserted into the slots 3132 on the second disk 324, the diode rotates with the rotation of the second disk 324, and when the diode rotates to the gap between the disk 324 and the pressure plate 343, one side of the diode lead abuts against the second arc surface 3431 of the pressure plate 343. Since the rotation speed of the disk 324 is higher than that of the second rotating disk 322, the other side of the diode lead is subjected to the tangential force and pressure of the disk 324, and the lead is driven to rotate under the action of the tangential force. Under the action of the pressure, the lead is straightened. The disk 324 is provided with a protrusion 3241. As the disk 324 rotates, the contact area between the protrusion on the disk 324 and the contact surface of the lead is alternately arranged from small to large, and the process of chasing the wire is carried out from one end close to the PN junction to the outside, so the straightening effect is better.

[0048] By setting the angular velocity of the second gear 323 to be smaller than the angular velocity of the third gear 325, the rotation speed of the second turntable 322 is smaller than the rotation speed of the disk 324. Since the second turntable 322 rotates with the diode, due to the speed difference between the second turntable 322 and the disk 324, the friction between the lead of the diode and the disk 324 causes the lead to rotate. At the same time, by setting a plurality of protrusions 3241, the width of the protruding part on the outer wall of the disk 324 is gradually reduced along the rotation direction of the disk 324. Therefore, when the lead passes through the gap between the wire chasing assembly 340 and the disk 324, the force on the lead of the diode is a gradual force from the end close to the PN junction to the outside, just like our manual operation, chasing from the end close to the PN junction to the outside. The straightened lead is blocked by the block 420 and introduced into the discharge track 410. Compared with the traditional planar mechanical straightening, the diode straightening effect is better.

[0049] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A diode straightening mechanism, characterized in that: It includes a differential assembly, a drive assembly and a line-chasing assembly; The differential assembly comprises a second rotating disk and two circular disks, a plurality of fixing grooves are provided on the outer wall of the second rotating disk, the plurality of fixing grooves are evenly arranged along the circumference of the second rotating disk, the two circular disks are symmetrically arranged on both sides of the second rotating disk, the opposite sides of the two circular disks are both in sliding contact with the second rotating disk, a plurality of protrusions are provided on the outer wall of the circular disk, the plurality of protrusions are sequentially connected end to end along the circumference of the circular disk, and the width of each protrusion is sequentially reduced along the rotation direction of the circular disk; The driving assembly drives the second rotating disk and the two circular disks to rotate coaxially and in the same direction, the two circular disks have the same rotation speed, and the rotation speed of the second rotating disk is less than the rotation speed of the circular disks; The wire chasing assembly has two second arc-shaped surfaces, and the two second arc-shaped surfaces correspond to the two disks one by one. A gap is formed between each second arc-shaped surface and the corresponding raised portion on the disk.

2. The diode straightening mechanism according to claim 1, characterized in that: The differential assembly also includes a second rotating shaft, a second gear and two third gears, the second rotating shaft passes through one of the third gears, one of the discs, the second rotating disc, another disc and another third gear in sequence, the second rotating shaft is fixedly connected to the second rotating disc, the two third gears are both rotatably connected to the second rotating shaft, the opposite sides of the two third gears are respectively fixedly connected to the two discs, the opposite sides of the two discs are slidably connected to the second rotating disc, and the second gear is sleeved on the second rotating shaft.

3. The diode straightening mechanism according to claim 1, characterized in that: The fixing groove consists of an annular groove and two groups of slots. The annular groove is formed on the outer wall of the second turntable. The two groups of slots are respectively located on the outer edges of both sides of the second turntable. Each group of slots includes a plurality of slots. The plurality of slots in each group are evenly arranged along the circumference of the second turntable. Each slot is connected to the annular groove. The plurality of slots in one group correspond to the plurality of slots in another group one by one. The PN junction of the diode is embedded in the annular groove, and the leads at both ends of the diode pass through the slots on both sides respectively.

4. The diode straightening mechanism according to claim 1, characterized in that: The protrusion is in the shape of a right-angled triangle, and the right-angled side of the protrusion is attached to the outer edge of the corresponding disk on one side close to the other disk.

5. The diode straightening mechanism according to claim 1, characterized in that: The driving assembly includes a first driving member and a second driving member, the first driving member drives the second turntable to rotate, the second driving member drives the disk to rotate, and the rotation speed of the first driving member is lower than the rotation speed of the second driving member.

6. The diode straightening mechanism according to claim 2, characterized in that: The driving assembly includes a motor, a driving gear, a third rotating shaft, two fourth gears and a fifth gear. The driving gear is sleeved on the driving shaft of the motor. The third rotating shaft is parallel to the second rotating shaft. The two fourth gears and the fifth gear are both sleeved on the third rotating shaft. The two fourth gears are respectively meshed with the two third gears, and the fifth gear is meshed with the second gear.

7. The diode straightening mechanism according to claim 1, characterized in that: The wire chasing assembly includes a bracket, a fixed shaft, two pressure plates and two cylinders. The two pressure plates are rotatably connected to the fixed shaft. The two pressure plates correspond to the two cylinders one by one. The telescopic end of each cylinder is hinged to one side of the corresponding pressure plate, and the other side of each pressure plate forms a second arc surface.

8. A diode straightening device, characterized in that: It comprises the diode straightening mechanism as described in any one of claims 1 to 7, and also comprises a frame, a feeding mechanism and a discharging mechanism, wherein the feeding mechanism, the diode straightening mechanism and the discharging mechanism are all fixed on the frame, and along the rotation direction of the second turntable, the wire chasing assembly is located between the feeding mechanism and the discharging mechanism, the feeding mechanism guides the diode into the card slot of the second turntable, and the discharging mechanism guides the diode on the second turntable.

9. The diode directing device according to claim 8, characterized in that: The feeding mechanism includes a fixed frame, a connecting plate, a first guide plate and a second guide plate. The fixed frame is fixed on the frame, the connecting plate is connected to the fixed frame, the first guide plate and the second guide plate are both fixed on the connecting plate, a feeding track is formed between the first guide plate and the second guide plate, the diode slides along the length direction of the feeding guide track, and the discharge end of the feeding guide track faces the fixed groove on the second turntable.

10. The diode directing device according to claim 9, characterized in that: The feed guide rail is formed by the gap between the first guide plate and the second guide plate. Long grooves are provided on opposite sides of the first guide plate and the second guide plate. The PN junction of the diode moves along the length direction of the long grooves. The leads on both sides of the diode are located outside the long grooves and between the first guide plate and the second guide plate.

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