CN116690898A - Automatic feeding injection molding machine and injection molding process for motor rotor with grounding plate - Google Patents

Abstract

The invention relates to the technical field of injection molding production, in particular to an automatic feeding injection molding machine with a grounding plate for a motor rotor and an injection molding process for the injection molding machine, wherein the injection molding machine comprises a machine body and a turntable mechanism arranged on the machine body, the turntable mechanism is provided with a plurality of lower dies, and the machine body is also provided with a grounding plate feeding mechanism, a metal plate feeding mechanism, an injection molding mechanism, a water gap discharging mechanism and a rotor discharging mechanism along the rotation direction of the turntable mechanism, wherein the grounding plate feeding mechanism is used for transferring the grounding plate into the lower dies; the metal sheet feeding mechanism is used for transferring the metal sheet into the lower die; the injection molding mechanism is connected with an upper die and is used for controlling the upper die and the lower die to be matched and injection molding; the water gap blanking mechanism is used for blanking a water gap piece; the rotor blanking mechanism is used for taking out the rotor from the lower die. According to the invention, the grounding plate and the metal plate are fed into the same lower die and are spaced from each other, so that the rotor with the grounding plate can be manufactured by one-time injection molding, and the production efficiency is improved.

Description

Automatic feeding injection molding machine and injection molding process for motor rotor with grounding plate

Technical Field

The invention relates to the technical field of injection molding production, in particular to an automatic feeding injection molding machine with a grounding plate for a motor rotor and an injection molding process.

Background

The motor rotor mainly comprises a metal sheet and an injection molding piece coating the metal sheet, wherein the metal sheet is used for driving an alternating magnetic field to rotate, and the injection molding piece has the effects of protecting and shaping the metal sheet.

In order to ensure the safety of the rotor, a special grounding piece is arranged on an injection molding piece of the existing part of the rotor, but the production mode of the rotor in the prior art is usually secondary injection molding, namely, after a first main body is formed by injection molding of a metal piece, the first main body and the grounding piece are simultaneously placed in a mold for secondary injection molding. This approach is undoubtedly complicated in steps, resulting in low production efficiency.

Disclosure of Invention

The invention provides an automatic feeding injection molding machine and an injection molding process for a motor rotor with a grounding plate, aiming at the problems in the prior art, and the automatic feeding injection molding machine and the injection molding process can complete one-time injection molding for the motor rotor with the grounding plate so as to improve the production efficiency and ensure that the grounding plate and the grounding plate cannot be misplaced to influence the quality of the motor rotor.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides an automatic feeding injection molding machine with a grounding plate for a motor rotor, which comprises a machine body and a turntable mechanism arranged on the machine body, wherein the turntable mechanism is provided with a plurality of lower dies, and the machine body is also provided with a grounding plate feeding mechanism, a metal plate feeding mechanism, an injection molding mechanism, a water gap discharging mechanism and a rotor discharging mechanism along the rotation direction of the turntable mechanism,

the grounding piece feeding mechanism is used for cutting and transferring the grounding piece from the first external material belt into the lower die;

the metal sheet feeding mechanism is used for cutting and transferring the metal sheet from the second external material belt into the lower die;

the injection molding mechanism is connected with an upper die and is used for controlling the upper die and the lower die to be matched and perform injection molding, and separating a water gap piece from a rotor when the upper die and the lower die are opened after injection molding;

the water gap blanking mechanism is used for taking the water gap piece out of the lower die;

the rotor blanking mechanism is used for taking out the rotor from the lower die and blanking.

Further, the grounding piece feeding mechanism comprises a first feeding frame, a first material cutting piece, a first blowing mechanism, a first feeding module and a first lifting driving piece, wherein the first feeding module and the first lifting driving piece are all arranged on the first feeding frame, the first feeding frame and the first blowing mechanism are all arranged on the machine body, the first feeding module is used for guiding a first material belt to enter the first material cutting piece, the first lifting driving piece is used for driving the first material cutting piece to lift, the first material cutting piece is used for driving the first material belt to move to the lower die and cutting the grounding piece on the first material belt so that the grounding piece falls in the lower die, and the first blowing mechanism is used for blowing air into the lower die to remove dust from the lower die.

Further, sheetmetal feed mechanism is including installing in the second material loading frame of organism, second blank spare, all install in second material loading frame's second pay-off module, second lift driving piece and second blowing mechanism, second lift driving piece drive connection second blank spare, second pay-off module is used for guiding the second material area to get into second blank spare, second blank spare is used for driving the second material area and removes to the lower mould and cuts the sheetmetal on the second material area so that the tablet falls in the lower mould.

Still further, sheetmetal feed mechanism still includes vision device, and vision device is used for carrying out visual detection to the lower mould that feed mechanism goes out in order to judge whether there is the sheetmetal in the lower mould.

Still further, the second mechanism of blowing is including all first module and two second modules of blowing, and guide structure and two second modules of blowing all set up in last work or material rest, and guide structure is used for driving first module round trip movement of blowing, and the second module of blowing is used for blowing the detritus to the lower mould, and the first module of blowing is used for blowing the detritus around the sheetmetal after the sheetmetal gets into the lower mould.

Further, the lower die is provided with a plurality of injection molding slots, the injection molding slots are internally provided with a central positioning column and four side positioning columns, the central positioning columns are used for being inserted into central through holes of an external metal sheet and a grounding sheet, the four side positioning columns are distributed in an annular array by taking the central positioning column as a circle center, and the adjacent side positioning columns are arranged at intervals;

one side of the side locating column, which is close to the central locating column, is an arc-shaped surface, the other side of the side locating column is provided with a protruding part, the top of the protruding part is provided with a locating part, the protruding part is used for supporting the grounding plate, and the locating part is used for supporting the metal plate.

Further, the water gap blanking mechanism comprises a moving module and a clamping module, the moving module is used for driving the clamping module to move, the clamping module comprises a clamping driving piece, a clamping seat, a first clamping jaw, a second clamping jaw and a transmission assembly, the first clamping jaw and the second clamping jaw are both rotatably arranged on the clamping seat, the clamping driving piece is in driving connection with the first clamping jaw and the second clamping jaw through the transmission assembly, grooves which are matched with the shape of the water gap are respectively formed in the opposite ends of the first clamping jaw and the second clamping jaw, and a plurality of protrusions are respectively formed in the opposite ends of the first clamping jaw and the second clamping jaw;

the movable module comprises a rotating mechanism, a rotating frame, a lifting mechanism and a translation mechanism, wherein the rotating mechanism is used for driving the rotating frame to horizontally rotate, the clamping module is movably arranged on the rotating frame, the lifting mechanism is used for driving the clamping module to lift, and the translation mechanism is used for driving the clamping module to move back and forth along a straight line.

Further, the grounding plate feeding mechanism is located between the rotary table mechanism and the rotary system blanking mechanism, the rotor blanking mechanism comprises a lower die checking device, a blanking track, a blanking control valve, a blanking moving module, a blanking mounting plate and a plurality of material picking pieces, the material picking pieces are all mounted on the blanking mounting plate, the blanking moving module is used for driving the blanking mounting plate to move back and forth, the material picking pieces are connected with an air source through the blanking control valve, the blanking track and the lower die checking device are mounted on the machine body, the material picking pieces are used for picking up the rotor through negative pressure and transferring the rotor to the blanking track, and the lower die checking device is used for checking whether the rotor is arranged in the lower die.

The invention also provides an injection molding process of the motor rotor with the grounding plate, which comprises the following steps:

A. mounting the grounding plate to the lower die;

B. mounting the metal sheet to the lower die such that the grounding sheet is located directly below the metal sheet with a gap therebetween;

C. closing the lower die and injection molding, and cutting off and separating the water gap piece from the rotor during die opening;

D. taking out the water gap piece from the lower die;

E. and taking the rotor out of the lower die.

Further, the step A specifically includes:

A1. detecting whether a rotor is arranged in the lower die, if so, taking out the rotor through a rotor blanking mechanism, otherwise, carrying out the step A2-A4;

A2. blowing the inside of the lower die;

A3. placing the grounding plate into an injection molding station of a lower die;

A4. blowing the inside of the lower die;

the step B specifically comprises the following steps:

B1. B2-B4 are executed if the grounding piece is arranged in the lower die, otherwise, the metal piece is not put into the lower die, and step C is not executed, and the lower die is controlled by the turntable mechanism to move step by step until reaching the rotor blanking mechanism;

B2. blowing in the lower die;

B3. mounting the metal sheet to the lower die such that the grounding sheet is located directly below the metal sheet with a gap therebetween;

B4. blowing is carried out in the lower die.

The invention has the beneficial effects that: according to the invention, the grounding plate and the metal plate are fed into the same lower die and are spaced from each other, so that the motor rotor with the grounding plate can be manufactured by one-time injection molding, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic view of a grounding plate feeding mechanism according to the present invention.

Fig. 3 is a schematic view of a sheet metal feeding mechanism of the present invention.

Fig. 4 is a schematic view of the blowing mechanism of the present invention.

FIG. 5 is a schematic view of a slider of the present invention.

Fig. 6 is a schematic view of the lower die of the present invention.

FIG. 7 is a schematic view of an injection molding slot of the present invention.

Fig. 8 is a schematic view of a center pillar according to the present invention.

Fig. 9 is a schematic view of a side positioning column according to the present invention.

Fig. 10 is a schematic diagram showing the cooperation of the lifting driving mechanism and the support column according to the present invention.

Fig. 11 is a schematic view of a nozzle blanking mechanism of the present invention.

Fig. 12 is a top view of the clamping module of the present invention after the clamping seat is removed.

Fig. 13 is a schematic view of the lifting mechanism of the present invention.

Fig. 14 is a schematic view of a rotor blanking mechanism of the present invention.

Fig. 15 is a schematic view of a rotor of the present invention.

Reference numerals: 1-machine body, 2-turntable mechanism, 3-lower die, 4-grounding plate feeding mechanism, 5-metal plate feeding mechanism, 6-injection molding mechanism, 7-water gap discharging mechanism, 8-rotor discharging mechanism, 10-rotor, 11-injection molding member, 12-grounding plate, 13-metal plate, 32-injection molding slot position, 33-center positioning column, 34-side positioning column, 35-lifting driving mechanism, 36-support column, 41-first feeding frame, 42-first blanking member, 43-first blower mechanism, 44-first feeding module, 45-first lifting driving member, 51-second feeding frame, 52-second feeding module, 53-second lifting driving member, 54-second blanking member, 55-second blowing mechanism, 56-vision device, 72-clamping module, 73-rotating mechanism, 74-rotating frame, 75-lifting mechanism, 76-translation mechanism, 81-lower die checking device, 82-a blanking track, 83-a blanking control valve, 84-a blanking moving module, 85-a blanking mounting plate, 86-a pick-up piece, 331-a positioning convex part, 332-a central positioning part, 341-an arc surface, 342-a convex part, 343-a positioning part, 344-an arc groove, 351-a lifting module, 352-a lifting plate, 552-a guiding mechanism, 553-a first blowing module, 554-a second blowing module, 721-a clamping driving piece, 722-a clamping seat, 723-a first clamping jaw, 724-a second clamping jaw, 725-a transmission component 726-a groove, 727-a convex part, 741-a lifting guide rail, 751-a lifting cylinder, 752-a lifting seat, 753-a translation guide piece, 754-a detector, 761-a translation cylinder, 762-a translation mounting piece, 5511-a guide rail, 5512-a slider, 5513-a guiding driving module, 5514-a convex block, 5531-a first electromagnetic valve, 5532-a first blowing pipe, 5533-a first valve, 5541-second solenoid valve, 5542-second air blast pipe, 5543-location structure, 5544-second three-way valve, 7231-first drive portion, 7232-first rotation portion, 7241-second drive portion, 7242-second rotation portion, 7251-first drive member, 7252-second drive member.

Detailed Description

The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention. The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 15, the automatic feeding injection molding machine with the grounding plate for the motor rotor provided by the invention comprises a machine body 1 and a turntable mechanism 2 arranged on the machine body 1, wherein the turntable mechanism 2 is provided with a plurality of lower dies 3, and the machine body 1 is also provided with a grounding plate 12 feeding mechanism 4, a metal plate 13 feeding mechanism 5, an injection molding mechanism 6, a water gap blanking mechanism 7 and a rotor 10 blanking mechanism 8 along the rotation direction of the turntable mechanism 2;

the grounding plate 12 feeding mechanism 4 is used for cutting and transferring the grounding plate 12 from a first material belt outside to the lower die 3;

the metal sheet 13 feeding mechanism 5 is used for cutting and transferring the metal sheet 13 from the second external material belt into the lower die 3;

the injection molding mechanism 6 is connected with an upper die, and the injection molding mechanism 6 is used for controlling the upper die to be matched with the lower die 3 and injection molding, and separating a water gap piece from the rotor 10 when the lower die is opened after injection molding;

the water gap blanking mechanism 7 is used for taking the water gap piece out of the lower die 3;

the rotor 10 blanking mechanism 8 is used for taking out the rotor 10 from the lower die 3 and blanking.

The working steps of the invention are as follows:

A. mounting the grounding plate 12 to the lower die 3, wherein the step is realized through a grounding plate 12 feeding mechanism 4;

B. mounting the metal sheet 13 to the lower die 3 such that the ground sheet 12 is located directly below the metal sheet 13 with a gap between the ground sheet 12 and the metal sheet 13; the step is realized through a metal sheet 13 feeding mechanism 5;

C. closing the lower die 3 and injection molding, and cutting off and separating the nozzle piece from the rotor 10 during die opening; this step is achieved by the injection mechanism 6;

D. taking out the nozzle piece from the lower die 3, wherein the step is realized through a nozzle blanking mechanism 7;

E. the rotor 10 is taken out of the lower die 3, and the step is realized through a rotor 10 blanking mechanism 8.

According to the invention, through the arrangement of the grounding plate 12 feeding mechanism 4 and the metal plate 13 feeding mechanism 5, the grounding plate 12 and the metal plate 13 are placed into the lower die 3, a sufficient gap is reserved between the grounding plate 12 and the metal plate 13, and then injection molding is carried out for one-step molding of the rotor 10, so that the injection molding efficiency is improved, and the phenomenon that the quality of a product is not too close due to dislocation of the grounding plate 12 and the metal plate 13 during secondary injection molding is avoided.

In this embodiment, the feeding mechanism 4 for the grounding sheet 12 includes a first feeding frame 41, a first cutting member 42, a first blowing mechanism, a first feeding module 44 and a first lifting driving member 45 both mounted on the first feeding frame 41, the first feeding frame 41 and the first blowing mechanism are both mounted on the machine body 1, the first feeding module 44 is used for guiding a first material belt into the first cutting member 42, the first lifting driving member 45 is used for driving the first cutting member 42 to lift, the first cutting member is used for driving the first material belt to move to the lower die 3 and cutting the grounding sheet 12 on the first material belt so that the grounding sheet 12 falls in the lower die 3, and the first blowing mechanism is used for blowing air into the lower die 3 to remove dust from the lower die 3.

In actual use, the first feeding module 44 is a conventional coil discharging mechanism for transferring the first tape with the grounding plate 12 to the first cutting member 42; the first material cutting member 42 may also be a conventional material cutting mechanism, that is, the first material cutting member 42 may drive the first material belt to descend to the lower die 3, and separate the grounding plate 12 from the first material belt by punching and cutting, so as to achieve the effect of accommodating the grounding plate 12 in the lower die 3; further, the first elevating driving member 45 is preferably an air cylinder.

When the feeding mechanism 4 of the grounding plate 12 acts, the first blowing mechanism blows air to the inside of the lower die 3 to achieve the chip and cooling effect, the first feeding module 44 discharges the first material belt to the first material cutting piece 42, the lifting driving piece drives the first material cutting piece 42 to descend to be in contact with the lower die 3, the first material cutting piece 42 continues to act to cut off the connection point between the grounding plate 12 and the first material belt, and then the first blowing mechanism blows air to the inside of the lower die 3 to remove chips generated by cutting off the connection point, so that the effect of accommodating the grounding plate 12 in the lower die 3 is achieved, and the fact that metal chips do not influence the product quality before and after the grounding plate 12 is fed is ensured.

In this embodiment, the feeding mechanism 5 of the metal sheet 13 includes a second feeding frame 51, a second blanking member 54, a second feeding module 52, a second lifting driving member 53 and a second blowing mechanism 55, which are all installed on the second feeding frame 51, the second lifting driving member 53 is in driving connection with the second blanking member 54, the second feeding module 52 is used for guiding a second material belt into the second blanking member 54, and the second blanking member 54 is used for driving the second material belt to move to the lower die 3 and cutting the metal sheet 13 on the second material belt so that the material belt falls in the lower die 3.

The structure of the feeding mechanism 5 of the metal sheet 13 is substantially the same as that of the feeding mechanism 4 of the grounding sheet 12, and will not be described in detail herein; through the setting of sheetmetal 13 feed mechanism 5 for sheetmetal 13 can be in the grounding piece 12 back material loading to lower mould 3, has reached the effect that disposable injection molding can make rotor 10.

Specifically, the feeding mechanism 5 of the metal sheet 13 further includes a vision device 56, and the vision device 56 is used for performing vision detection on the lower die 3 out of the feeding mechanism to determine whether the metal sheet 13 exists in the lower die 3. The vision device 56 is mainly used for identifying whether the grounding plate 12 is arranged in the lower die 3, and when the grounding plate 12 is arranged in the lower die 3, the metal plate 13 is fed into the lower die 3 by the metal plate 13 feeding mechanism 5; if the grounding plate 12 does not exist in the lower die 3, the feeding mechanism 5 of the metal plate 13 does not feed the metal plate 13 to the lower die 3, but the lower die 3 is enabled to pass through the injection molding mechanism 6, the water gap piece blanking mechanism and the rotor 10 blanking mechanism 8 in sequence and then returns to the grounding plate 12 feeding mechanism 4 for re-feeding under the action of the turntable mechanism 2, and all three do not act when passing through the injection molding mechanism 6, the water gap piece blanking mechanism and the rotor 10 blanking mechanism 8.

Specifically, the second blowing mechanism 55 includes a first blowing module 553 and two second blowing modules 554, the guiding structure and the two second blowing modules 554 are both disposed on the feeding frame, the guiding structure is used for driving the first blowing module 553 to move back and forth, the second blowing module 554 is used for blowing and removing scraps to the lower die 3, and the first blowing module 553 is used for blowing and removing scraps to the periphery of the metal sheet 13 after the metal sheet 13 enters the lower die 3.

Specifically, the blowing mechanism includes a first blowing module 553 and two second blowing modules 554, the guiding structure and the two second blowing modules 554 are both arranged on the feeding frame, the guiding structure is used for driving the first blowing module 553 to move back and forth, the second blowing modules 554 are used for blowing and removing scraps to the lower die 3, and the first blowing module 553 is used for blowing and removing scraps to the periphery of the metal sheet 13 after the metal sheet 13 enters the lower die 3.

In actual use, the first air blowing pipe 5532 is always opposite to the injection molding station of the lower die 3, and the second air blowing module 554 is driven by the guiding mechanism 552 to slide to a position right above the injection molding station.

Preferably, the guiding structure comprises a guide rail 5511, a sliding block 5512 and a guiding driving module 5513, wherein the guide rail 5511 is installed on the feeding frame and located between the two second blowing modules 554, the sliding block 5512 is slidably arranged on the guide rail 5511, the guiding driving module 5513 is used for driving the sliding block 5512 to move back and forth along the guide rail 5511, and the first blowing module 553 is installed on the sliding block 5512.

In this embodiment, a bump 5514 is disposed at the bottom of the slider 5512, and two first air blowing pipes 5532 are respectively located at two sides of the bump 5514. The two first air blowing pipes 5532 are subjected to limit installation through the protruding blocks 5514, so that the effect that the interval between the two first air blowing pipes 5532 is kept stable is achieved, and the air blowing position is more stable.

In this embodiment, the first blowing module 553 further includes a first three-way valve 5533, and the first electromagnetic valve 5531 is communicated with the two first blowing pipes 5532 through the first three-way valve 5533. The two first air blowing pipes 5533 are communicated with the same opening of the first electromagnetic valve 5531 through the first three-way valve 5533, so that the air flow blown out by the two first air blowing pipes 5532 can be ensured to be basically kept the same, and the air blowing and dust removing are more stable.

When the lower die 3 is in place, the first electromagnetic valve 5531 is used for controlling the first air blowing pipe 5532 to be communicated with an external air source, the first air blowing pipe 5532 blows air into the injection molding station, then the first air blowing pipe 5532 stops blowing air, the external feeding mechanism is used for placing the metal sheet 13 into the injection molding station, the first air blowing pipe 5532 blows air into the injection molding station again, and then the external punching and cutting mechanism is used for cutting the metal sheet 13 from the material belt and sending the cut metal sheet into the injection molding station. After the metal sheet 13 enters the injection molding station, the mold is opened again, the second blowing module 554 is driven by the guiding mechanism 552 to move to the upper side of the lower mold 3, and the second blowing module 554 blows air into the injection molding station, so that the injection molding station is cleaned for the second time.

The dust removing device is simple in structure, dust is removed before and after the metal sheet 13 is placed in the dust removing device in a blowing mode, and the metal sheet 13 can be blown for the second time after the metal sheet 13 enters the injection molding station, so that scraps can be removed before and after the metal sheet 13 is placed in the dust removing device.

In this embodiment, the second air blowing module 554 includes a second electromagnetic valve 5541 and two second air blowing pipes 5542, the two second air blowing pipes 5542 are disposed at intervals on the feeding frame, one ends of the two second air blowing pipes 5542 are all connected with an air source through the second electromagnetic valve 5541841, and the other ends of the two second air blowing pipes 5542842 are used for blowing air to the module.

Specifically, the second air blowing module 554 further includes a plurality of positioning structures 5543, where the positioning structures 5543 are configured to position the second air blowing pipe 5542 so as to keep the posture of the second air blowing pipe 5542 unchanged. That is, since the second air blowing pipe 5542 is a soft rubber pipe, the position and the posture of the second air blowing pipe 5542 need to be fixed by a positioning structure 5543 commonly used such as a buckle, so that the other end of the second air blowing pipe 5542 always faces the injection molding station of the mold, and the dust removal effect is ensured.

The first air blowing pipe 5532 can be positioned by a corresponding structure, which is not described herein.

Preferably, the second air blowing module 554 further includes a second three-way valve 5544, and the second electromagnetic valve 5541 is communicated with the two second air blowing pipes 5542 through the second three-way valve 5544. The two second air blowing pipes 5542 are communicated with the same opening of the second electromagnetic valve 5541 through the second three-way valve 5544, so that the air flow blown out by the two second air blowing pipes 5542 can be ensured to be basically kept the same, and the air blowing and dust removing are more stable.

In this embodiment, the guiding driving module 5513 may be a cylinder, and may also be a motor and screw structure, which only needs to be a module capable of controlling the slider 5512 to move back and forth along a straight line.

In this embodiment, the lower mold 3 is provided with a plurality of injection molding slots 32, a central positioning column 33 and four side positioning columns 34 are disposed in the injection molding slots 32, the central positioning column 33 is used for being inserted into the central through holes of the external metal sheet 13 and the grounding sheet 12, the four side positioning columns 34 are distributed in an annular array with the central positioning column 33 as a center, and the adjacent side positioning columns 34 are disposed at intervals;

one side of the side positioning column 34, which is close to the central positioning column 33, is an arc-shaped surface 341, a protrusion 727 part 342 is arranged on the other side of the side positioning column 34, a positioning part 343 is arranged on the top of the protrusion 727 part 342, the protrusion 727 part 342 is used for supporting the grounding plate 12, and the positioning part 343 is used for supporting the metal plate 13.

Specifically, before injection molding, the grounding plate 12 is mounted in the injection molding slot 32 by the grounding plate 12 feeding mechanism 4, specifically, the central hole of the grounding plate 12 is sleeved on the central positioning column 33 and two adjacent protrusions 727 parts 342 hold the two ends of the grounding plate 12 so that most of the positions of the grounding plate 12 fall in the interval; finally, the metal sheet 13 is put into the injection molding slot 32 by the metal sheet 13 feeding mechanism 5, the center hole of the metal sheet 13 is sleeved on the center positioning column 33, and two adjacent positioning parts 343 support two ends of the metal sheet 13, and at the moment, a space is reserved between the grounding sheet 12 and the metal sheet 13. Injection molding can then be performed after mold closing, and the plastic fills the injection molding groove 32 except for the center positioning post 33, the side positioning posts 34, the metal sheet 13, and the grounding plate 12, thereby forming the injection molded part 11.

The invention realizes that the motor rotor 10 with the grounding plate 12 can be molded by one-time injection molding, thereby improving the efficiency, avoiding the phenomenon that the grounding plate 12 and the metal plate 13 are not corresponding to each other due to secondary injection molding, and improving the quality of the produced motor rotor 10.

In this embodiment, two arc grooves 344 are disposed at the top of the positioning portion 343, and the arc grooves 344 of two adjacent side positioning posts 34 cooperate to hold the metal sheet 13. The arc groove 344 can also play a role in guiding the grounding plate 12 when the grounding plate 12 is mounted, namely guiding the grounding plate 12 to slide along the positioning portion 343 until being supported by the protrusion 727 portion 342, so that the grounding plate 12 and the side positioning posts 34 can be mounted without high-precision alignment.

In this embodiment, the width of the protrusion 727 portion 342 is larger than the width of the positioning portion 343.

In this embodiment, the lower mold 3 is provided with a lifting driving mechanism 35, the lifting driving mechanism 35 includes a lifting module 351 and a lifting plate 352, the central positioning column 33 and the side positioning columns 34 are both mounted on the lifting plate 352, and the lifting module 351 is used for driving the lifting plate 352 to lift.

Specifically, the lifting module 351 is a conventional linear driving module such as an air cylinder or an oil cylinder, and is configured to drive the lifting plate 352 to lift, so that the plurality of center positioning columns 33 and the side positioning columns 34 lift simultaneously, as shown in fig. 9, the center positioning column 33 and the side positioning columns 34 inside the injection molding slot 32 lift along with the lifting plate 352, so that the center positioning column 33 and the side positioning columns 34 can be controlled to retract after injection molding is completed, and interference is avoided to blanking of the rotor 10.

Specifically, the lifting plate 352 has a plurality of relief holes, the lower mold 3 is provided with a plurality of support columns 36, and the support columns 36 protrude into the injection molding slot 32 after passing through the relief holes; the support columns 36 are used to hold the motor rotor 10 as the lifter plate 352 descends after injection molding.

In actual use, at least three support posts 36 are provided within one injection molding slot 32. Through the setting of support column 36 for after injection molding is accomplished lift actuating mechanism 35 action and let center reference column 33 and side reference column 34 to the direction of drawing out of injection molding trench 32 remove, motor rotor 10 can be supported and be in the certain height of injection molding trench 32 by a plurality of support columns 36, thereby the unloading of being convenient for.

In this embodiment, the side of the center positioning column 33 is provided with a positioning protrusion 331, and the positioning protrusion 331 is used for preventing the grounding plate 12 and the metal plate 13 from being reversed.

In actual use, the top of the central positioning column 33 is provided with a central positioning portion 332, the diameter of the central positioning portion 332 is smaller than the width of the central positioning column 33, and the positioning protrusion 331 is disposed on the central positioning portion 332. That is, the center positioning portion 332 plays a role of positioning and guiding, the number of the positioning protrusions 331 is two, and the two positioning protrusions 331 are generally used for assembling with corresponding hole sites of the grounding plate 12 and the metal plate 13, so as to avoid the effects that the grounding plate 12 and the metal plate 13 are reversely placed and relatively misplaced. And the corresponding holes on the grounding plate 12 and the metal plate 13 can be matched with the rotating shaft to ensure that the rotating shaft and the motor rotor 10 synchronously rotate when the motor is actually installed.

In this embodiment, the turntable mechanism 2 of the present invention has a conventional structure, that is, the plurality of lower molds 3 are distributed on the top of the turntable mechanism 2 in a ring array with the center of the turntable mechanism 2 as the center of the circle, so as to ensure that the intervals between the adjacent lower molds 3 are substantially equal.

In this embodiment, the nozzle blanking mechanism 7 includes a moving module and a clamping module 72, the moving module is mounted on the machine body 1, the moving module is used for driving the clamping module 72 to move, the clamping module 72 includes a clamping driving member 721, a clamping seat 722, a first clamping jaw 723, a second clamping jaw 724 and a transmission assembly 725, the first clamping jaw 723 and the second clamping jaw 724 are both rotatably disposed on the clamping seat 722, the clamping driving member 721 is in driving connection with the first clamping jaw 723 and the second clamping jaw 724 through the transmission assembly 725, a groove 726 corresponding to the nozzle shape is respectively disposed at opposite ends of the first clamping jaw 723 and the second clamping jaw 724, and a plurality of protrusions 727 are respectively disposed at opposite ends of the first clamping jaw 723 and the second clamping jaw 724;

the moving module comprises a rotating mechanism 73, a rotating frame 74, a lifting mechanism 75 and a translation mechanism 76, wherein the rotating mechanism 73 is used for driving the rotating frame 74 to horizontally rotate, the clamping module 72 is movably arranged on the rotating frame 74, the lifting mechanism 75 is used for driving the clamping module 72 to lift, and the translation mechanism 76 is used for driving the clamping module 72 to linearly move back and forth.

The structure of separating the nozzle from the rotor 10 can be realized by the existing mold structure, that is, when the nozzle is discharged, the translation mechanism 76 acts to enable the clamping module 72 to extend forward between the upper mold and the lower mold 3 outside, the lifting mechanism 75 controls the clamping module 72 to take out the nozzle in the lower mold 3, preferably clamps the nozzle through the groove 726, and the protrusion 727 increases the friction of the nozzle outside the groove 726 to reduce the falling phenomenon; then the lifting mechanism 75 and the shifting mechanism 76 control the clamping module 72 to reset in the horizontal and vertical directions, and the rotating mechanism 73 controls the clamping module 72 to rotate 90 degrees horizontally, so that the clamping module 72 is positioned right above the recovery station, and the water gap piece can fall into the recovery station after the clamping module 72 is loosened.

In this embodiment, the first clamping jaw 723 is provided with a first transmission portion, the first clamping jaw 723 is arranged at an obtuse angle with the first transmission portion, the second clamping jaw 724 is provided with a second transmission portion, and the second transmission portion is arranged at an obtuse angle with the second clamping jaw 724;

the connection part of the first clamping jaw 723 and the first transmission part and the connection part of the second clamping jaw 724 and the second transmission part are respectively provided with a first rotation part and a second rotation part, and the first rotation part and the second rotation part are both in rotation connection with the rotation seat.

That is, through the arrangement of the first transmission part and the second transmission part, the length of the first transmission part is larger than that of the first clamping jaw 723, and the length of the second transmission part is larger than that of the second clamping jaw 724, the effect of amplifying the pneumatic finger stroke is achieved, and the rotation amplitude of the first clamping jaw 723 and the second clamping jaw 724 is larger, so that sufficient width can be opened to clamp a water gap piece.

Specifically, the clamping driving member 721 includes a pneumatic finger, the transmission assembly 725 includes a first transmission member and a second transmission member, the first transmission member and the second transmission member are respectively connected to two finger ends of the pneumatic finger, the first transmission member is in transmission connection with the first transmission portion, the second transmission member is in transmission connection with the second transmission portion, the length of the first transmission member is smaller than the length of the first transmission portion, and the length of the second transmission member is smaller than the length of the second transmission member.

Specifically, the lifting mechanism 75 includes a lifting cylinder 751 and a lifting seat 752, the lifting cylinder 751 is mounted on the rotating frame 74, a lifting rail 5511741 is disposed in the rotation, the lifting cylinder 751 is driven by the lifting cylinder 751 to connect with the lifting seat 752, the lifting seat 752 is movably disposed on the lifting rail 5511741, the translation mechanism 76 is mounted on the lifting seat 752, and the translation mechanism 76 is driven by the translation mechanism 76 to connect with the clamping module 72.

That is, the lifting cylinder 751 drives the lifting base 752 to lift along the lifting rail 5511741, so that the translation mechanism 76 provided on the lifting base 752 and the clamping module 72 connected to the translation mechanism 76 are lifted together, thereby achieving the effect that the lifting and translation actions do not interfere with each other.

Specifically, the translation mechanism 76 includes a translation cylinder 761 and a translation mounting member 762, the lifting seat 752 is provided with a translation guide member 753, the translation mounting member 762 is slidably disposed on the translation guide member 753, the translation cylinder 761 is in driving connection with the translation mounting member 762, and the clamping module 72 is mounted on the translation mounting member 762.

Preferably, a detector 754 is disposed between the translation mount 762 and the lift bracket 752, the detector 754 being configured to detect the position of the translation mount 762, the detector 754 being electrically coupled to the rotation mechanism 73. The detector 754 may be a photoelectric switch or an infrared switch, and is mainly used for detecting whether the translation mounting piece 762 is in place, so that the rotating mechanism 73 only controls the rotating frame 74 to horizontally rotate when the translation mounting piece 762 is in a state of retracting into the lifting frame (namely, the state that the clamping module 72 retreats), the action safety is ensured, and the clamping module 72 is prevented from rotating in an extending state to collide with surrounding structures.

In addition, the rotating mechanism 73 in the present embodiment may be a motor, or be composed of a motor and a speed reducer, or be composed of a revolving cylinder, that is, only a conventional module capable of controlling the rotation of the rotating frame 74 is needed, and the details are not repeated here

Specifically, the feeding mechanism 4 of the grounding plate 12 is located between the turntable mechanism 2 and the revolving blanking mechanism, the blanking mechanism 8 of the rotor 10 includes a lower die checking device 81, a blanking track 82, a blanking control valve 83, a blanking moving module 84, a blanking mounting plate 85 and a plurality of picking up pieces 86, the plurality of picking up pieces 86 are all mounted on the blanking mounting plate 85, the blanking moving module 84 is used for driving the blanking mounting plate 85 to move back and forth, the plurality of picking up pieces 86 are connected with an air source through the blanking control valve 83, the blanking track 82 and the lower die checking device 81 are both mounted on the machine body 1, the picking up pieces 86 are used for picking up the rotor 10 through negative pressure and transferring the rotor 10 to the blanking track 82, and the lower die checking device 81 is used for checking whether the rotor 10 is arranged in the lower die 3.

In the working steps of the invention, the step A specifically comprises the following steps:

A1. detecting whether a rotor 10 is further arranged in the lower die 3, if so, taking out the rotor 10 through a rotor 10 blanking mechanism 8, otherwise, carrying out a step A2-A4;

A2. blowing the inside of the lower die 3;

A3. placing the grounding plate 12 into an injection molding station of the lower die 3;

A4. the inside of the lower die 3 is blown.

The step B specifically comprises the following steps:

B1. B2-B4 are executed if the grounding plate 12 is arranged in the lower die 3, otherwise, the metal plate 13 is not put into the lower die 3 and the step C is not executed, and the lower die 3 is controlled by the turntable mechanism 2 to move step by step until reaching the rotor 10 blanking mechanism 8;

B2. blowing the lower die 3;

B3. mounting the metal sheet 13 to the lower die 3 such that the ground sheet 12 is located directly below the metal sheet 13 with a gap between the ground sheet 12 and the metal sheet 13;

B4. the inside of the lower die 3 is blown.

Namely, the feeding mechanism 4 of the grounding plate 12 is positioned right above the turntable mechanism 2, the rotating system blanking mechanism is positioned at one side of the turntable mechanism 2, when the lower die 3 reaches the position, the blanking mechanism 8 of the rotor 10 is firstly operated, namely, the lower die checking device 81 firstly checks whether the injection slot 32 of the lower die 3 has the rotor 10 or not, if so, the blanking control valve 83 controls the plurality of material picking pieces 86 to pick up the plurality of rotors 10 in the lower die 3 at the same time, then the blanking moving module 84 is operated to control the blanking mounting plate 85 to move right below the blanking track 82, and then the blanking control valve 83 cuts off the negative pressure gas of the material picking pieces 86, so that the rotors 10 fall on the blanking track 82 under the action of gravity and slide into corresponding collecting containers along the blanking track 82, thereby achieving the effect of blanking the rotors 10.

After the rotor 10 is completely discharged, the grounding plate 12 is placed into the injection molding groove 32 of the lower die 3 by the grounding plate 12 feeding mechanism 4, so that the rotor 10 of the next round is started to be produced.

Specifically, the blanking moving module 84 of the present invention is preferably a module having an X-axis and a Z-axis, and the blanking control valve 83 is preferably a solenoid valve.

The present invention is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a motor rotor automatic feeding injection molding machine with grounding piece, includes the organism and sets up in the carousel mechanism of organism, carousel mechanism is provided with a plurality of lower moulds, its characterized in that: the machine body is also provided with a grounding piece feeding mechanism, a metal piece feeding mechanism, an injection molding mechanism, a water gap discharging mechanism and a rotor discharging mechanism along the rotation direction of the turntable mechanism,

the grounding piece feeding mechanism is used for cutting and transferring the grounding piece from the first external material belt into the lower die;

the metal sheet feeding mechanism is used for cutting and transferring the metal sheet from the second external material belt into the lower die;

the injection molding mechanism is connected with an upper die and is used for controlling the upper die and the lower die to be matched and perform injection molding, and separating a water gap piece from a rotor when the upper die and the lower die are opened after injection molding;

the water gap blanking mechanism is used for taking the water gap piece out of the lower die;

the rotor blanking mechanism is used for taking out the rotor from the lower die and blanking.

2. The automatic feeding injection molding machine with grounding plate for motor rotor according to claim 1, wherein: the grounding piece feeding mechanism comprises a first feeding frame, a first cutting piece, a first blowing mechanism, a first feeding module and a first lifting driving piece, wherein the first feeding module and the first lifting driving piece are both arranged on the first feeding frame, the first feeding frame and the first blowing mechanism are both arranged on the machine body, the first feeding module is used for guiding a first material belt to enter the first cutting piece, the first lifting driving piece is used for driving the first cutting piece to lift, the first cutting piece is used for driving the first material belt to move to the lower die and cutting the grounding piece on the first material belt so that the grounding piece falls in the lower die, and the first blowing mechanism is used for blowing air into the lower die to remove dust from the lower die.

3. The automatic feeding injection molding machine with grounding plate for motor rotor according to claim 1, wherein: the sheet metal feed mechanism is including installing in the second material loading frame of organism, second blank spare, all install in second pay-off module, second lift driving piece and the second mechanism of blowing of second material loading frame, second lift driving piece drive connection second blank spare, and second pay-off module is used for guiding second material area to get into second blank spare, and second blank spare is used for driving second material area and removes to the lower mould and cuts the sheet metal on the second material area so that the sheet metal falls in the lower mould.

4. The automatic feeding injection molding machine with grounding plate for motor rotor according to claim 3, wherein: the metal sheet feeding mechanism further comprises a visual device, and the visual device is used for visually detecting the lower die out of the feeding mechanism to judge whether the metal sheet exists in the lower die.

5. The automatic feeding injection molding machine for motor rotors according to claim 3, wherein: the second mechanism of blowing is including all first module and the two second modules of blowing, and guide structure and two second modules of blowing all set up in last work or material rest, and guide structure is used for driving first module round trip movement of blowing, and the second module of blowing is used for blowing the detritus to the lower mould, and first module of blowing is used for blowing the detritus around the sheetmetal after the sheetmetal gets into the lower mould.

6. The automatic feeding injection molding machine for motor rotors according to claim 1, wherein: the lower die is provided with a plurality of injection molding slots, a central positioning column and four side positioning columns are arranged in the injection molding slots, the central positioning column is used for being inserted into central through holes of an external metal sheet and a grounding sheet, the four side positioning columns are distributed in an annular array by taking the central positioning column as a circle center, and adjacent side positioning columns are arranged at intervals;

one side of the side locating column, which is close to the central locating column, is an arc-shaped surface, the other side of the side locating column is provided with a protruding part, the top of the protruding part is provided with a locating part, the protruding part is used for supporting the grounding plate, and the locating part is used for supporting the metal plate.

7. The automatic feeding injection molding machine for motor rotors according to claim 1, wherein: the water gap blanking mechanism comprises a moving module and a clamping module, wherein the moving module is used for driving the clamping module to move, the clamping module comprises a clamping driving piece, a clamping seat, a first clamping jaw, a second clamping jaw and a transmission assembly, the first clamping jaw and the second clamping jaw are both rotationally arranged on the clamping seat, the clamping driving piece is in driving connection with the first clamping jaw and the second clamping jaw through the transmission assembly, grooves which are matched with the shape of the water gap are respectively formed in the opposite ends of the first clamping jaw and the second clamping jaw, and a plurality of protrusions are respectively formed in the positive ends of the first clamping jaw and the second clamping jaw;

the movable module comprises a rotating mechanism, a rotating frame, a lifting mechanism and a translation mechanism, wherein the rotating mechanism is used for driving the rotating frame to horizontally rotate, the clamping module is movably arranged on the rotating frame, the lifting mechanism is used for driving the clamping module to lift, and the translation mechanism is used for driving the clamping module to move back and forth along a straight line.

8. The automatic feeding injection molding machine for motor rotors according to claim 1, wherein: the grounding piece feeding mechanism is located between the turntable mechanism and the rotating system blanking mechanism, the rotor blanking mechanism comprises a lower die checking device, a blanking track, a blanking control valve, a blanking moving module, a blanking mounting plate and a plurality of material picking pieces, the material picking pieces are all installed on the blanking mounting plate, the blanking moving module is used for driving the blanking mounting plate to move back and forth, the material picking pieces are connected with an air source through the blanking control valve, the blanking track and the lower die checking device are all installed on a machine body, the material picking pieces are used for picking up a rotor through negative pressure and transferring the rotor to the blanking track, and the lower die checking device is used for checking whether the lower die is internally provided with the rotor.

9. An injection molding process for a motor rotor with a grounding plate is characterized by comprising the following steps of: the method comprises the following steps:

A. mounting the grounding plate to the lower die;

B. mounting the metal sheet to the lower die such that the grounding sheet is located directly below the metal sheet with a gap therebetween;

C. closing the lower die and injection molding, and cutting off and separating the water gap piece from the rotor during die opening;

D. taking out the water gap piece from the lower die;

E. and taking the rotor out of the lower die.

10. The injection molding process for a motor rotor having a grounding plate according to claim 9, wherein: the step A specifically comprises the following steps:

A1. detecting whether a rotor is arranged in the lower die, if so, taking out the rotor through a rotor blanking mechanism, otherwise, carrying out the step A2-A4;

A2. blowing the inside of the lower die;

A3. placing the grounding plate into an injection molding station of a lower die;

A4. blowing the inside of the lower die;

the step B specifically comprises the following steps:

B1. B2-B4 are executed if the grounding piece is arranged in the lower die, otherwise, the metal piece is not put into the lower die, and step C is not executed, and the lower die is controlled by the turntable mechanism to move step by step until reaching the rotor blanking mechanism;

B2. blowing in the lower die;

B3. mounting the metal sheet to the lower die such that the grounding sheet is located directly below the metal sheet with a gap therebetween;

B4. blowing is carried out in the lower die.