Automatic stacking device for iron core scattered sheets

Abstract

An automatic iron core scattered sheet stacking device is suitable for being arranged below a stamping module, the stamping module is suitable for producing a plurality of iron core scattered sheets falling downwards through machining and manufacturing, and each iron core scattered sheet comprises a plurality of through holes. The automatic stacking device for the iron core scattered pieces comprises a collecting unit arranged on the downstream of the stamping module and an intercepting unit connected with the stamping module. The collecting unit comprises a plurality of bases and a plurality of guide columns arranged on the bases respectively. The intercepting unit comprises a cylinder body defining a falling channel and at least one electromagnet. And when the at least one electromagnet is switched to the opening state, the operation margin for temporarily blocking the iron core scattered sheets in the barrel body to replace the multiple bases can be provided, so that the automatic stacking effect of continuous collection is achieved.

Description

Technical Field

[0001] This utility model relates to a device for assisting in the stacking of iron core sheets, and more particularly to an automated stacking device for iron core sheets. Background Technology

[0002] See Figure 1 , 2 A conventional iron core lamination stacking device 9 is suitable for producing a plurality of said iron core laminations 8 from an upstream stamping device (not shown). Each said iron core lamination 8 includes a through hole 80 having an axially extending through hole 801. The conventional iron core lamination stacking device 9 includes a conveyor belt 91 disposed downstream of the stamping device and suitable for conveying the plurality of said iron core laminations 8 in a conveying direction, and a fixture 92 disposed downstream of the conveyor belt 91 and spaced apart from the conveyor belt 91 in the conveying direction. The fixture 92 includes a base 921 and a guide post 922 extending upward from the base 921 and having a positioning block 922a suitable for extending through each said keyway 801.

[0003] In use, the existing iron core sheet stacking device 9, as the iron core sheets 8 are sequentially conveyed towards the fixture 92 along the conveying direction, when the iron core sheets 8 are conveyed to the vicinity of the fixture 92 near the conveyor belt 91, due to the inertia of the conveying, each iron core sheet 8 will detach from the end of the conveyor belt 91 and continue to move towards the guide post 922 along the conveying direction. At this time, by adjusting the appropriate interval between the fixture 92 and the conveyor belt 91, each iron core sheet 8 can continue to move due to inertia after detaching from the conveyor belt 91, and thus, as expected, be fitted onto the guide post 922 after moving a specific distance. Then, through the top of the guide post 922, as shown... Figure 2 The constricted structure shown will cause each of the inertial iron core pieces 8 to rotate due to centrifugal force when it contacts the top of the guide post 922. When each of the iron core pieces 8 falls downward due to gravity, the positioning block 922a is adapted to each of the keyways 801 and fits in place, so that the iron core pieces 8 can be smoothly collected in the fixture 92.

[0004] However, when the jig 92 continuously collects the iron core tablets 8 to a target number, the operator must first turn off the power of the conveying belt 91, and when the conveying belt 91 stops conveying the iron core tablets 8, replace the full jig 92 with the jig 92 not loaded with the iron core tablets 8, and then turn on the power of the conveying belt 91 to convey the iron core tablets 8. However, if the collection operation is frequently interrupted, it will cause the operation schedule to be delayed, the service life of the equipment to be reduced, or the stability of the dynamic process to be reduced. Utility Model Content

[0005] The utility model discloses a kind of automatic stacking devices of iron core tablets, which can temporarily block iron core tablets to provide buffer margin to save space to carry out continuous collection operation.

[0006] The automatic stacking device of iron core tablets of the utility model is suitable for being arranged below a stamping module, the stamping module is suitable for processing and manufacturing a plurality of downward falling iron core tablets, and each iron core tablet includes a through hole extending axially. The automatic stacking device of iron core tablets includes a collection unit adjacent to the stamping module, and an intercepting unit adjacent to the stamping module.

[0007] The collection unit includes a plurality of bases arranged downstream of the stamping module, and a plurality of guide columns extending axially upward from the bases and suitable for the iron core tablets to be sleeved.

[0008] The intercepting unit is connected to the collection unit and arranged between the stamping module and the collection unit, and includes a barrel body located above the collection unit and defining a falling channel, and at least one electromagnet arranged inside the barrel body and used to provide a magnetic attraction force to the iron core tablets located in the falling channel. Wherein, the at least one electromagnet can be switched between an open state of applying the magnetic attraction force to the iron core tablets and making them horizontally arranged and suspended axially in the falling channel, and a closed state of stopping applying the magnetic attraction force to the iron core tablets and making them fall axially and be sleeved on the guide columns.

[0009] The automatic stacking device of iron core tablets of the utility model, each iron core tablet further includes a plurality of guide holes arranged equidistantly around an axis, wherein the intercepting unit includes a plurality of electromagnets arranged equidistantly inside the barrel body around the axis and corresponding to the guide holes.

[0010] The automatic stacking device of iron core tablets of the utility model, wherein the intercepting unit further includes a control member arranged in the barrel body and connected to the electromagnets.

[0011] The utility model discloses an automatic stacking device of iron core tablets, wherein the guide column is gradually expanded from top to bottom and is conical, and the cross section area of the bottom of the guide column is consistent with the aperture of the perforation of the iron core tablet.

[0012] The utility model discloses an automatic stacking device of iron core tablets, wherein each iron core tablet further comprises a guide hole arranged at intervals with the perforation, and the collecting unit further comprises at least one positioning column extending axially upward from the base and arranged at intervals with the guide column, and adapted to be inserted into the guide hole.

[0013] The utility model discloses an automatic stacking device of iron core tablets, wherein the collecting unit further comprises a plurality of rotating shafts extending axially away from the base and extending reversely with the guide column, and a plurality of servo motors connected with the rotating shafts and adapted to rotate the base around the rotating shafts, and the at least one positioning column is adapted to adjust the stacking direction of the iron core tablets.

[0014] The utility model has the advantages that the at least one electromagnet can temporarily block the iron core tablets produced by the stamping module in the barrel body, which helps the operator to replace another base without the iron core tablets when the iron core tablets stay in the barrel body, so as to achieve the effect of continuous collection. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a schematic view illustrating a prior art stacking device of iron core tablets;

[0016] Figure 2 Fig. 2 is a perspective view illustrating a plurality of iron core tablets of the prior art stacking device of iron core tablets sleeved on the guide column of a jig;

[0017] Figure 3 Fig. 3 is a schematic view illustrating an embodiment of the automatic stacking device of iron core tablets of the utility model;

[0018] Figure 4 Fig. 4 is a schematic view illustrating a stamping module, a collecting unit and an intercepting unit of the embodiment;

[0019] Figure 5 Fig. 5 is a top view illustrating the positioning column of the collecting unit for sleeving the guide hole of the iron core tablet;

[0020] Figure 6 Fig. 6 is a schematic view similar to Figure 4 Fig. 7 is a schematic view illustrating the servo motor and the rotating shaft of the collecting unit;

[0021] Figure 7 Fig. 8 is a schematic view similar toFigure 4 a schematic view illustrating one of the bases of the collecting unit loading the iron core pieces to a full load amount; and

[0022] Figure 8 a schematic view illustrating one of the bases of the collecting unit loading the iron core pieces to a full load amount; and Figure 4 a schematic view illustrating one of the bases of the collecting unit loading the iron core pieces to a full load amount; and Figure 7 a schematic view illustrating one of the bases of the collecting unit loading the iron core pieces to a full load amount; and DETAILED DESCRIPTION

[0023] The utility model will be described in detail below in combination with the drawings and examples.

[0024] Referring to Figures 3 to 5 , the embodiment of the automatic stacking device for iron core pieces of the utility model is applicable to being arranged below a punching module 7. The punching module 7 is applicable to processing and manufacturing a plurality of iron core pieces 6 falling downwards. Each iron core piece 6 comprises a through hole 60 penetrating in an axial direction and a guide hole 61 arranged at intervals with the through hole 60 and equiangularly and equispacedly arranged at 45 degrees with each other around an axis L. The embodiment is applicable to stacking and collecting a plurality of iron core pieces 6 and is used for placing the iron core pieces 6 after being collected. The embodiment comprises a collecting unit 2 arranged directly below the punching module 7 and applicable to receiving the iron core pieces 6 and an intercepting unit 3 arranged adjacent to the punching module 7.

[0025] The collecting unit 2 comprises a plurality of bases 21 arranged adjacent to the punching module 7, a plurality of guide columns 22 respectively extending upwards in an axial direction from the bases 21 and applicable to sleeving the iron core pieces 6, a plurality of positioning columns 23 respectively extending upwards in an axial direction from the bases 21 and arranged at intervals with the guide columns 22 and applicable to penetrating in the guide holes 61, a plurality of rotating shafts 24 respectively extending away from the bases 21 in an axial direction and extending reversely with each other with the guide columns 22 and a plurality of servo motors 25 respectively connected with the rotating shafts 24 and used for driving the bases 21 to rotate around the rotating shafts 24 as the axis. In the embodiment, the guide columns 22 and the positioning columns 23 are designed according to the shape of each iron core piece 6. Preferably, each guide column 22 is tapered and gradually expands from top to bottom. The cross-sectional area of the bottom of each guide column 22 is consistent with the aperture of the through hole 60 of the iron core piece 6. Each positioning column 23 is also tapered when viewed from a side angle and is used for penetrating and abutting against the inner side of the guide hole 61.

[0026] The intercepting unit 3 is connected with the collecting unit 2 and is used for Figure 4The intercepting unit 3 is disposed between the punching module 7 and the collecting unit 2. The intercepting unit 3 includes a barrel body 31 disposed above the collecting unit 2 and defining a falling passage 310 for the iron core pieces 6 to fall, a plurality of electromagnets 32 disposed on one side of the barrel body 31 and configured to provide a magnetic force to the iron core pieces 6 in the falling passage 310, and a control member 33 disposed on the barrel body 31 and electrically connected to the electromagnets 32 and the servo motor 25. The electromagnets 32 can be disc-shaped electromagnets or telescopic electromagnets. The control member 33 is configured to set a threshold of the number of the iron core pieces 6 and to control the electromagnets 32 to temporarily magnetically attract and block a plurality of the iron core pieces in the barrel body 31.

[0027] In detail, the electromagnets 32 can be switched between an open state in which the electromagnets 32 apply the magnetic force to the iron core pieces 6 along the radial direction and make the iron core pieces 6 horizontally arranged and suspended in the falling passage 310 along the axial direction, and a closed state in which the electromagnets 32 stop applying the magnetic force to the iron core pieces 6 and make the iron core pieces 6 fall along the axial direction and be sleeved on the guide columns 22. In the embodiment, the cross section of the barrel body 31 is slightly larger than the area of each iron core piece 6, and the electromagnets 32 are disposed at equal intervals corresponding to the guide holes 61 of the iron core pieces 6, so that the radial cross-sectional area of the barrel body 31 is larger than the area of the iron core pieces 6, and the iron core pieces 6 can smoothly fall along the falling passage 310.

[0028] Referring to Figure 6 and Figure 5 In use, the operator operates the punching module 7 to make the rough blanks pass through the punching module 7 to form a plurality of iron core pieces 6 and vertically fall to the punching die below the intercepting unit 3. Based on the gravity of the iron core pieces 6, each iron core piece 6 falls horizontally along the extension direction of the axis L into the falling passage 310 of the barrel body 31. In addition, the operator can switch the electromagnets 32 to the open state through the control member 33, so that the electromagnets 32 apply the magnetic force to the iron core pieces 6 in the falling passage 310 at equal angles along the radial direction, the iron core pieces 6 horizontally rest on the surface of the electromagnets 32 relative to the extension direction of the axis L, and are stably suspended in the falling passage 310 by abutting against the surface of the electromagnets 32.

[0029] When the electromagnet 32 stops applying the magnetic attraction force to the core sheet 6, the horizontally placed core sheet 6 will fall down along the falling passage 310 based on the gravity of the core sheet 6 itself, and then gradually expand from top to bottom based on the structure design of the guide column 22, so that the top narrow structure of the guide column 22 can easily penetrate into the perforation 60 of the core sheet 6, and the bottom wide structure of the guide column 22 can match and abut the perforation 60, so that the core sheet 6 can be fixed and positioned to achieve the effect of collecting. Similarly, when the number of core sheets 6 is plural, the positioning column 23 can penetrate each perforation 60 and abut the inner side of the guide hole 61 of each core sheet 6 at the same time, so that multiple core sheets 6 can be positioned on the positioning column 23 at the same time to achieve the effect of stacking and collecting.

[0030] It should be noted that in the present embodiment, each core sheet 6 defines an arc-shaped periphery, and the number of electromagnets 32 is eight, which are arranged at an angle of 45 degrees on one side of the inner side of the barrel body 31 with the axis L as the center and according to the symmetry of the guide hole 61 of the core sheet 6. According to the symmetry of the guide hole 61 of each core sheet 6, the electromagnet 32 can be attached to the arc-shaped periphery of each falling core sheet 6 and apply the magnetic attraction force to the guide hole 61 at an equal angle. Based on the characteristic that the magnetic force generated by the electromagnet 32 tends to flow towards the metal part of each core sheet 6, when each core sheet 6 is suspended in the barrel body, the metal part of each core sheet 6 will be affected by the magnetic force line generated by the electromagnet 32, and the magnetic force line will pass through the metal part of each core sheet 6 with low magnetic resistance, so that the metal part of each core sheet 6 can be aligned with the electromagnet 32, and the guide hole 61 can be accurately positioned above the positioning column 23 by aligning the gap between the electromagnet 32, thereby achieving the effect of rotating and aligning. In addition, the number of electromagnets 32 can be adjusted to 3, 4 or 5 according to the shape of the arc-shaped periphery of each core sheet 6, as long as the effect of accurately positioning the angle and direction of the core sheet 6 can be achieved, and the number is not particularly limited.

[0031] During the stamping process of the iron core sheets 6, the thickness of the central and edge portions of the blank often differs due to manufacturing tolerances. Consequently, when the iron core sheets 6 are stacked and collected in the collection unit 2, the thicker portions may continue to accumulate on the same side during stamping, resulting in uneven stacking and inconsistent height of the iron core sheets 6. Therefore, the operator can use the control element 33 to temporarily apply magnetic attraction to the iron core sheets 6 via the electromagnet 32, allowing the iron core sheets 6 to... Figure 6 The base 21 is temporarily suspended within the cylindrical body 31. Next, the servo motor 25 is controlled by the control unit 33 to rotate the base 21 around the pivot 24, causing the positioning post 23 to rotate along with the base 21. At this time, by rotating the positioning post 23 by 120 degrees, it aligns with the guide hole 61 of the other orientation of the iron core fragment 6 suspended within the cylindrical body 31. Thus, when the iron core fragment 6 suspended within the cylindrical body 31 falls downwards, the positioning post 23 can extend and position itself at different angles relative to the iron core fragment 6 already mounted on the base 21, allowing the iron core fragments 6, which originally had thickness differences, to be collected in the base 21 in a more uniform stacking manner, achieving the effect of compensating for accumulated thickness.

[0032] See Figure 7 and Figure 8When one of the bases 21 continuously collects the rotor core to its full load quantity, the operator can determine whether the number of core fragments 6 falling during stamping has reached the threshold by calculating the number of core fragments 6, measuring the height of the stacked core fragments 6 below, or measuring the weight of the stacked core fragments 6 below. In this embodiment, the operator sets the control unit 33 to meet the threshold quantity and uses the control unit 33 to detect the correspondence between the number of core fragments 6 passing through the falling channel 310 and the threshold quantity. That is, when the control unit 33 detects that the number of core fragments 6 passing through the falling channel 310 is equal to the threshold quantity, it means that the base 21 below the interception unit 3 has collected the core fragments 6 to the full load quantity. At this time, the control unit 33 switches the electromagnet 32 ​​to the open state to generate the magnetic attraction force, allowing the plurality of iron core fragments 6 located in the drop channel 310 to be temporarily blocked inside the cylinder body 31. Therefore, the operator can use the time gained while the iron core fragments 6 are temporarily blocked by the cylinder body 31 to remove the base 21 below the interception unit 3, which is already fully loaded with the iron core fragments 6, and then move the other base 21 of the collection unit 2, which is not loaded with the iron core fragments 6, directly below the cylinder body 31. Next, the control unit 33 switches the electromagnet 32 ​​to the closed state, causing the electromagnet 32 ​​to stop applying the magnetic attraction force to the iron core fragments 6, and the iron core fragments 6 will then stack on the base 21, achieving an automated stacking effect for continuous collection of the iron core fragments 6.

[0033] It is worth noting that in this embodiment, the iron core pieces 6 can also be irregularly shaped rather than circular. The magnetic attraction force generated by the electromagnet 32 ​​of the interception unit 3 can still generate sufficient magnetic attraction force on the iron core pieces 6, so that the non-circular iron core pieces 6 can be temporarily blocked in the cylinder body 31. By replacing another base 21 that does not contain the iron core pieces 6, the automated stacking effect of continuously collecting the iron core pieces 6 can also be achieved.

Claims

1. An automated stacking device for iron core laminations, suitable for being disposed below a stamping module, the stamping module being suitable for processing and manufacturing a plurality of downward-falling iron core laminations, and each iron core lamination including an axially penetrating through hole; characterized in that: The automated stacking device for the iron core laminations includes: A collection unit, adjacent to the stamping module, includes a plurality of bases disposed downstream of the stamping module, and a plurality of guide posts extending axially upward from the bases and adapted for mounting the core laminations; and An interception unit is connected to the collection unit and disposed between the stamping module and the collection unit. The interception unit includes a cylindrical body located above the collection unit and defining a drop channel, and at least one electromagnet disposed inside the cylindrical body and used to provide magnetic attraction to the iron core pieces located in the drop channel. The at least one electromagnet is capable of switching between an open state in which the magnetic attraction is applied to the iron core pieces and they are horizontally arranged and suspended in the drop channel along the axial direction, and a closed state in which the magnetic attraction is stopped and the iron core pieces are dropped along the axial direction and fitted onto the guide post.

2. The automated stacking device for iron core laminations according to claim 1, characterized in that: Each of the iron core pieces also includes a plurality of guide holes that are equally spaced apart from each other around an axis. The interception unit includes a plurality of electromagnets that are disposed inside the cylinder body around the axis and are equally spaced apart from each other to correspond to the guide holes.

3. The automated stacking device for iron core laminations according to claim 1, characterized in that: The interception unit also includes a control component disposed on the cylinder body and connected to the electromagnet.

4. The automated stacking device for iron core laminations according to claim 1, characterized in that: The guide post gradually expands radially from top to bottom to form a cone shape, and the cross-sectional area of ​​the bottom of the guide post matches the gap of the perforation of the iron core sheet.

5. The automated stacking device for iron core laminations according to claim 1, characterized in that: Each of the core slabs also includes guide holes spaced apart from the perforations, and the collection unit also includes at least one positioning post extending axially upward from the base and spaced apart from the guide posts, and adapted to pass through the guide holes.

6. The automated stacking device for iron core laminations according to claim 5, characterized in that: The collecting unit further includes a plurality of rotating shafts that extend axially away from the base and in the opposite direction to the guide post, and a plurality of servo motors that are connected to the rotating shafts and used to drive the base to rotate around the rotating shafts, and are used in conjunction with the at least one positioning post to adjust the stacking orientation of the iron core laminations.

Images