TWI645920B - Straightening machine - Google Patents

Abstract

A straightening machine comprising a straightening unit and a conveying unit. The conveying unit includes a vibrating plate, a guiding rail, a front stopper disposed on the guiding rail, and a rear end of the front stopper and spaced apart from the front stopper. a rear stopper on the rail, and an inductive switch disposed on the guiding rail and electrically connecting the vibrating disc. The work piece passing through the front stopper is again screened by the rear stopper to ensure that the workpieces enter the straightening unit one at a time. When the work piece blocked before the front stopper accumulates too much and is arranged to the position where the induction switch is located, the induction switch closes the vibration plate to stop the vibration plate from feeding to the guiding track to avoid These work pieces are blocked due to too many arrangements.

Description

Straightening machine

The present invention relates to a straightener, and more particularly to a straightener that can further prevent multiple workpieces from entering the straightening unit at the same time.

Generally, a workpiece such as a screw or a screw is heat-treated at the end of the process to eliminate the stress of the material itself, thereby improving the strength and toughness of the workpiece. However, the heat-treated work piece is bent due to stress release, so the heat-treated work piece is generally fed into a straightener to straighten the bent work piece to meet the standard.

Referring to FIG. 1 , a conventional straightening machine 1 includes a vibrating plate 11 , a guiding track 12 extending behind the vibrating disk 11 and extending along a conveying direction A, and a guiding track 12 extending along the conveying direction A. A rear straightening mechanism 13 and a stopper 14 disposed on the guiding rail 12 and located in front of the straightening mechanism 13. The operation of the straightening machine 1 is as follows: the vibrating disk 11 transports a plurality of workpieces 2 placed in the vibrating disk 11 to the guide rail 12 one at a time. The guide rail 12 is gradually inclined downward in the conveying direction A, so that the workpiece 2 will slide down along the guide rail 12 by its own weight until it is blocked by the stopper 14. The stopper 14 is actuated by a last working piece 2 of the last side, and the remaining working piece 2 is still blocked by the stopper 14 and cannot pass, and the working piece 2 is made one by one by the aforementioned action. The grounding mechanism is sent to the straightening mechanism 13 for straightening to prevent the plurality of working members 2 from simultaneously entering the straightening mechanism 13 to cause damage.

However, when the stopper 14 is actuated, it is still possible to pass two or more workpieces 2 at a time, causing the plurality of workpieces 2 to simultaneously enter the straightening mechanism 13 to cause mechanical damage. In addition, when the feeding speed of the vibrating plate 11 is faster than the screening speed of the stopper 14, the working members 2 are blocked by the stopper 14 and arranged forward in the conveying direction A, when When the guide rail 12 is full of the workpieces 2, the vibrating disc 11 will continue to convey the workpiece 2 to the guide rail 12, causing the feed plug to cause damage to the mechanism.

Accordingly, it is an object of the present invention to provide a straightener that can further screen the workpiece to straighten it one at a time.

Thus, the straightener of the present invention can transport a plurality of workpieces in a conveying direction and straighten one at a time. The straightening machine comprises a straightening unit and a conveying unit. The straightening unit includes a body, a first rotating shaft pivotally disposed in the seat body in the height direction, a plurality of first pressure rollers disposed on the first rotating shaft at intervals from each other, and spaced apart from the first rotating shaft a second rotating shaft pivotally disposed in the housing parallel to the first rotating shaft, and a plurality of second pressing wheels disposed on the second rotating shaft at a distance from each other.

The conveying unit includes a vibrating plate located in front of the straightening unit in the conveying direction, a guiding track disposed obliquely from the top to the bottom in the conveying direction between the vibrating plate and the straightening unit, and a guiding track disposed thereon a front stopper on the guiding rail, a rear stopper disposed behind the front stopper and spaced apart from the front stopper, and a rear stopper disposed on the guiding rail And an inductive switch located in front of the front stopper and electrically connected to the vibrating plate. When the inductive switch senses that the corresponding position on the guiding track has a working piece parked, the vibrating plate is closed to stop the vibrating plate from feeding to the guiding track.

The effect of the invention is that the work piece passing through the front stop is again screened by the rear stop to ensure that the work pieces enter the straightening unit one at a time. When the work piece blocked before the front stopper accumulates too much and is arranged to the position where the induction switch is located, the induction switch closes the vibration plate to stop the vibration plate from feeding to the guiding track to avoid These work pieces are blocked due to too many arrangements.

Referring to Figures 2 and 3, an embodiment of the straightener 3 of the present invention comprises a straightening unit 4, a transport unit 5, and a drive unit 6. The straightening unit 4 includes a body 41, a first rotating shaft 42 pivotally disposed in the base 41 in the height direction, and a plurality of first pressing wheels 43 disposed on the first rotating shaft 42 at intervals from each other. a second rotating shaft 44 pivotally disposed in the base 41 and spaced apart from the first rotating shaft 42 and a plurality of second pressing wheels 45 disposed on the second rotating shaft 44 at intervals a pole 46 disposed between the first rotating shaft 42 and the second rotating shaft 44, and a plurality of spacers 46 spaced apart from each other and located at the first pressing wheel 43 and the same The auxiliary wheel 47 between the second pressure rollers 45 (only one of them is shown in Fig. 3 due to the viewing angle).

Referring to Figures 2, 4, and 5, the base 41 has a base portion 411 placed on the ground and a frame portion 412 coupled to the base portion 411. The two ends of the first rotating shaft 42 are respectively axially disposed on the bottom portion 411 and the frame portion 412, and the cross-sectional area is substantially square. Each of the first pressure rollers 43 has a first center wheel portion 431 disposed on the first rotating shaft 42 and two first split wheel portions that can be coupled to each other and screwed to the first center wheel portion 431. 432 and 242 are respectively located at opposite ends of the first rotating shaft 42 and pass through the adjusting screw 433 of the first central wheel portion 431. The first center wheel portion 431 surrounds a shaft hole 434 which is substantially rectangular and larger than the first rotating shaft 42. The diameter of the first split wheel portions 432 after being joined is larger than the diameter of the first center wheel portion 431. Since the shaft holes 434 of the first pressure rollers 43 are larger than the first rotation shaft 42, each of the first pressure rollers 43 can be traversed along the longitudinal direction of the shaft hole 434 with respect to the first rotation shaft 42. The adjusting screws 433 of the first pressure roller 43 are locked to the first central wheel portion 431 along the longitudinal direction of the shaft hole 434, and protruded into the shaft hole 434 to be locked to the first rotating shaft. The adjusting screws 433 can assist the first pressing wheels 43 to be positioned on the first rotating shaft 42 after the first pressing wheels 43 are slidably adjusted relative to the first rotating shaft 42. The first split wheel portions 432 of each of the first pressure rollers 43 can be detached from the first center wheel portion 431 as shown in FIG. 6 and replaced with first split wheel portions 432 of different sizes to enhance the pan. Use sex. Each of the second pressure rollers 45 has a second center wheel portion 451 disposed on the second shaft 44, and a second split wheel detachably coupled to each other and detachably disposed on the second center wheel portion 451. The diameter of the second split wheel portion 452 after the splitting is greater than the diameter of the second center wheel portion 451.

It should be particularly noted that, in actual use, the first rotating shafts 42 of different sizes, the second rotating shafts 44, and the uprights 46 may be replaced according to different requirements, and a suitable number of the first pressing wheels 43 are used. The second pressure rollers 45, and the auxiliary wheels 47.

Referring to FIG. 2 and FIG. 3, the conveying unit 5 includes a vibrating plate 51 located in front of the straightening unit 4 in a conveying direction B, and a vibrating plate 51 disposed obliquely from top to bottom along the conveying direction B. A guiding rail 52 between the straightening units 4, a limiting rail 53 disposed below the guiding rail 52 and spaced apart from the guiding rail 52, and a detachable rail 53 are detachably disposed on the guiding rail 52. An extension rail 54 at the rear end, a front stopper 55 disposed on the guide rail 52, and a rear end of the front stopper 55 and spaced apart from the front stopper 55 are disposed on the guide rail 52. The rear stopper 56 and an inductive switch 57 disposed on the guiding rail 52 and located in front of the front stopper 55 and electrically connected to the vibrating plate 51.

The front end of the guide rail 52 is a workpiece C that is fed by the vibrating plate 51, and the rear end is extended into the seat body 41 of the straightening unit 4. Referring to FIG. 2, FIG. 7, and FIG. 8, the limiting rail 53 has a first sidewall 531 which is located below the guiding rail 52 in parallel, and a second sidewall 532 which is spaced apart from the first sidewall 531 in the lateral direction. a first guiding wall 533 connected to the front end of the first side wall 531 and gradually outwardly offset from the first side wall 531, and a front end connected to the second side wall 532 and facing away from the second The second guide wall 534 is gradually offset outward in the direction of the side wall 532. The distance between the first side wall 531 and the second side wall 532 is fixed, and the distance between the first guiding wall 533 and the second guiding wall 534 is gradually decreased along the conveying direction B until the first side wall 531 And the distance between the second sidewalls 532 is equal. The first sidewall 531 is partially located in a lateral projection area of the second sidewall 532 as shown in FIG. 8, and the first guiding wall 533 is located behind the second guiding wall 534 along the conveying direction.

Referring to FIG. 2 and FIG. 3, the front stopper 55 is spaced apart from the sensing switch 57 and has a first blocking pin 551 movable in the lateral direction, and an interval is disposed on the first blocking pin 551. A second stop pin 552 that is rearward and movable in the lateral direction. The rear stopper 56 has a first blocking member 561 movable in the lateral direction, and a second blocking member 562 spaced apart from the first blocking member 561 and movable in the lateral direction. In the present embodiment, the power source of the front stopper 55 and the rear stopper 56 is a pneumatic cylinder. The sensing switch 57 is fixed to one side of the guiding rail 52 and can sense whether the working member C is parked in the lateral position of the sensing switch 57.

Referring to FIG. 2, FIG. 3, and FIG. 9, the driving unit 6 includes a first gear 61 disposed at a bottom end of the first rotating shaft 42, a second gear 62 disposed at a bottom end of the second rotating shaft 44, and a first a driving gear 63 spaced apart from the two gears 62, a first interlocking gear 64 meshing with the first gear 61 and the second gear 62, and a second interlocking gear 65 meshing with the second gear 62 and the driving gear 63 And a motor 66 disposed on the bottom portion 411 of the base 41 and capable of rotating the drive gear 63. The first gear 61, the second gear 62, the drive gear 63, the first interlocking gear 64, and the second interlocking gear 65 are disposed in the base portion 411, and the motor 66 is located at the base The portion 411 is not shown in FIG. 2 because it is blocked by the line of sight. However, the motor 66 may be disposed in the bottom portion 411, and is not limited thereto.

Referring to FIG. 2, FIG. 3, and FIG. 7, the straightening machine 3 operates in the following manner: the vibrating plate 51 transmits a plurality of vibrations and a spiral path to the plurality of vibration disks 51. The workpieces C are sequentially aligned and outputted by the vibrating plate 51. When each working piece C is output by the vibrating plate 51, the upper end of the working piece C is limited to the guiding track 52, and the lower end is the first guiding wall 533 of the limiting rail 53 and the second guiding The wall 534 enters between the first side wall 531 and the second side wall 532. The design of the first guiding wall 533 and the second guiding wall 534 gradually approaching in the conveying direction B can guide the lower end of the working pieces C to move between the first side wall 531 and the second side wall 532. By the cooperation of the guide rail 52 and the limit rail 53, the workpiece C can be kept in an upright state without being skewed by a large shake.

Since the guiding rail 52 and the limiting rail 53 are inclined from top to bottom along the conveying direction B, the workpiece C will slide along the conveying direction B due to its own weight until as shown in FIG. The ground is stopped by the second stop pin 552 of the front stopper 55 to stop moving. At this time, the vibrating disk 51 will continue to send the other working members C to the guiding track 52 until any of the working members C arranged on the guiding track 52 are parked in the lateral position of the sensing switch 57. Then, the inductive switch 57 turns off the vibrating plate 51 to stop the conveying operation to ensure that the working members C do not block and damage the vibrating plate 51. Then, the first blocking pin 551 is extended as shown in FIG. 11 such that one of the working members C1 is located behind the first blocking pin 551, and the remaining working members C2 are located in front of the first blocking pin 551, and then the second blocking member The pin 552 is retracted so that the workpiece C1 can continue to move along the conveying direction B until the workpiece C1 is blocked by the second blocking member 562 of the rear stopper 56 as shown in FIG. The stopper 55 is restored to the initial state to repeat the foregoing action, and the first stopper 561 of the rear stopper 56 is extended as shown in FIG. 13 to prevent the passage of the remaining workpiece C2, the second stopper The 562 is retracted to enable the workpiece C1 to continue to move along the conveying direction B, and after being passed through the extension rail 54, is sent to the first pressure wheel 43, the second pressure wheel 45, and the auxiliary wheels 47. Straighten between.

Referring to FIG. 3, FIG. 4, and FIG. 9, the motor 66 can drive the driving gear 63 to rotate, and sequentially drive the second linking gear 65, the second gear 62, the first linking gear 64, and the first The gear 61 rotates to rotate the first rotating shaft 42 and the second rotating shaft 44, thereby driving the first pressing wheel 43 and the second pressing wheel 45 to rotate, and the auxiliary wheel 47 disposed at the interval can be matched These workpieces C perform a straightening action.

The front stopper 55 can first screen the workpiece C so that the workpiece C moves toward the rear stopper 56 one at a time, and the rear stopper 56 can be further sieved to When the front stopper 55 releases the two workpieces C at a time, it is still ensured that only one workpiece C enters the straightening unit 4 at a time. The inductive switch 57 can close the vibrating disc 51 when the working pieces C are cumulatively arranged to the set position, so as to prevent the vibrating disc 51 from feeding faster than the front stopper 55, causing the working pieces C to be The accumulation is excessive, so the operator does not need to monitor the accumulated amount of the working pieces C at any time, and does not need to manually close the vibration plate 51, which is advantageous for the automatic process. The extension rails 54, the first split wheel portions 432, and the second split wheel portions 452 are detachable, so that they can be replaced with the work pieces C of different requirements and different specifications. The shaft hole 434 of the first pressure wheel 43 is configured to adjust the position of the first pressure wheel 43 relative to the first rotation shaft 42 to change between the first pressure wheel 43 and the second pressure wheel 45. The distance is such that the first pressure rollers 43 and the second pressure rollers 45 can properly straighten the workpieces C.

It should be particularly noted that the straightening machine 3 can also be provided with a conveyor belt device D for conveying the straightened work piece C under the straightening unit 4 as shown in FIG. 2, but of course it can also be directly Containerized.

In summary, when the front stopper 55 can release the plurality of workpieces C at a time, it can still ensure that only one workpiece C enters the straightening unit 4 at a time, and the induction The switch 57 can close the vibrating plate 51 when the working pieces C are accumulated to a certain amount to avoid blockage of the production line, and the extension rail 54 is detachable design, can be replaced with different requirements, and has high universality. Therefore, the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

3‧‧‧ Straightening machine

4‧‧‧ Straightening unit

41‧‧‧ body

411‧‧‧Abutment Department

412‧‧‧Framework

42‧‧‧First shaft

43‧‧‧First pressure roller

431‧‧‧First Central Wheel

432‧‧‧First split wheel

433‧‧‧Adjustment screw

434‧‧‧Axis hole

44‧‧‧second shaft

45‧‧‧Second pressure roller

451‧‧‧Second Central Wheel

452‧‧‧Second split wheel

46‧‧‧ pole

47‧‧‧Assistance wheel

5‧‧‧Conveying unit

51‧‧‧Vibration plate

52‧‧‧Guided track

53‧‧‧Limited orbit

531‧‧‧First side wall

532‧‧‧First wall

533‧‧‧second side wall

534‧‧‧Second wall

54‧‧‧Extended orbit

55‧‧‧Front stop

551‧‧‧First stop pin

552‧‧‧Second gear

56‧‧‧Blocker

561‧‧‧First blocker

562‧‧‧second blocker

57‧‧‧Sensor switch

6‧‧‧Drive unit

61‧‧‧First gear

62‧‧‧second gear

63‧‧‧ drive gear

64‧‧‧First linkage gear

65‧‧‧Second linkage gear

66‧‧‧Motor

B‧‧‧Transport direction

C‧‧‧Workpieces

C1‧‧‧Workpieces

C2‧‧‧Workpieces

D‧‧‧ conveyor belt device

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: Figure 1 is a side view illustrating a conventional straightening machine; Figure 2 is a perspective view of the present invention Figure 3 is a top plan view showing the top view of the straightener; Figure 4 is an incomplete bottom view showing one straightening unit in the embodiment; Figure 5 is an incomplete view FIG. 6 is an incomplete perspective exploded view of the first pressure roller; FIG. 7 is an incomplete top view illustrating the FIG. 8 is an incomplete side view illustrating a side view of the limit rail; FIG. 9 is an incomplete front view illustrating a driving unit in the embodiment; And Figures 10 to 13 are incomplete top views illustrating the operation of a front stop and a rear stop.

Claims (10)

A straightening machine that transports a plurality of workpieces in a conveying direction and is straightened one at a time. The straightening machine comprises: a straightening unit comprising a body and a height pivoting in the body a first rotating shaft, a plurality of first pressure rollers disposed on the first rotating shaft at a distance from each other, a second rotating shaft spaced apart from the first rotating shaft and parallel to the first rotating shaft, and a plurality of second rotating shafts pivotally disposed in the housing a second pressure roller disposed on the second rotating shaft at a distance from each other; and a conveying unit including a vibration disk located in front of the straightening unit in the conveying direction, and a tilting device disposed obliquely from top to bottom along the conveying direction a guiding track between the vibrating plate and the straightening unit, a front stopper disposed on the guiding rail, a rear end of the front stopper and spaced apart from the front stopper a rear stopper on the guiding rail, and an inductive switch disposed on the guiding rail and located in front of the front stopper and electrically connecting the vibrating disc, when the inductive switch senses the guiding rail When the corresponding position has a work piece parked, Close to the vibration plate so that the vibration plate to stop feeding the guide rail. The straightening machine of claim 1, wherein the front stop of the transport unit comprises a first stop pin movable in a lateral direction, and a first interval disposed behind the first stop pin and movable in a lateral direction a second stop pin, the rear stop includes a first blocking member movable in a lateral direction, and a second blocking member spaced apart from the first blocking member and movable in a lateral direction. The straightening machine of claim 1, wherein the sensing switch of the conveying unit is disposed on one side of the guiding rail and spaced apart from the front stopper by a distance, the front stopper is blocking the The working members are arranged to be arranged forward in the conveying direction, and when the sensing switch senses that any of the working members is arranged to the lateral position of the sensing switch, the sensing switch closes the vibration plate. The straightening machine of claim 1, wherein the conveying unit further comprises an extended rail detachably disposed at a rear end of the guiding rail. The straightening machine of claim 1, wherein the conveying unit further comprises a limiting rail disposed below the guiding rail at a distance from the guiding rail for limiting the working pieces. The straightening machine of claim 5, wherein the limiting rail of the conveying unit has a first side wall parallel to the guiding rail, a second side wall spaced apart from the first side wall, and a connection a first guiding wall of the front end of the first side wall and gradually outwardly offset from the first side wall, and a front end connected to the second side wall and gradually outwardly offset from the second side wall Second guide wall. The straightening machine of claim 6, wherein a distance between the first side wall and the second side wall of the limiting rail is fixed, and a distance between the first guiding wall and the second guiding wall is along The conveying direction is gradually decreased backward and greater than or equal to the spacing distance between the first side wall and the second side wall, and the first side wall of the limiting rail is partially located in a lateral projection area of the second side wall, the first The guide wall is located behind the second guide wall in the conveying direction. The straightening machine of claim 1, further comprising a driving unit for driving the straightening unit, the driving unit comprising a first gear disposed on the first rotating shaft and a second rotating shaft a second gear, a drive gear spaced apart from the second gear, a first interlocking gear meshing with the first gear and the second gear, and a second interlocking engagement with the second gear and the drive gear a gear, and a motor that can drive the driving gear to rotate, the base of the straightening unit has a bottom portion disposed on the ground and provided by the motor, and a frame portion disposed on the bottom portion, the first A gear, the second gear, the drive gear, the first interlocking gear, and the second interlocking gear are disposed in the base portion, and the motor is disposed outside the base portion. The straightening machine of claim 1, wherein the first rotating shaft of the straightening unit has a square cross section, and each of the first pressing wheels has a first central wheel portion disposed on the first rotating shaft, a first split wheel portion that can be slidably disposed on each other and detachably disposed on the first center wheel portion, and two adjusting screws that are respectively disposed at opposite ends of the first rotating shaft and that pass through the first center wheel portion. The first center wheel portion surrounds a shaft hole which is substantially rectangular and larger than the first rotating shaft, and the diameter of the first split wheel portion after the splitting is larger than the diameter of the first center wheel portion, and each of the second pressure wheels has a second center wheel portion disposed on the second rotating shaft, and a second split wheel portion that can be assembled with each other and detachably disposed on the second center wheel portion, and the second split wheel portions are assembled The diameter is greater than the diameter of the second central wheel portion. The straightening unit of claim 1, wherein the straightening unit further comprises a vertical rod disposed on the seat body between the first rotating shaft and the second rotating shaft, and the plurality of spacers are disposed at intervals An auxiliary wheel on the pole and located between the first pressure wheel and the second pressure wheel.