Rotary injection molding machine

Abstract

The utility model relates to the technical fields of injection molding equipment provides a rotor injection molding machine, include: feeding device for providing loading has the rotor tray, injection molding device, including for the rotor injection molding shell injection mold, transfer device, including for overturning the rotor makes the rotor one end provided with the commutator downward turnover device and is used for placing the rotor transfer seat, the blanking device, and the rotor is moved to have the shell, and clamping transfer device, clamping transfer device includes the crossbeam, the mounting frame of movably installed on the crossbeam, is used for driving the mounting frame to move the translation drive mechanism and can lift and install on the mounting frame and be used for clamping the multiple clamping units of rotor, multiple clamping units are side by side arrangement and can move relative mounting frame. Compared with the prior art, the automatic feeding and discharging of the rotor can be realized, and the operation efficiency and production efficiency of feeding and discharging are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding equipment, and in particular to a rotor injection molding machine. Background Technology

[0002] Currently, in some applications, rotors require the addition of an oil-proof structure to prevent external oil from entering the rotor. The traditional manufacturing process uses an injection molding machine to mold the outer shell of the rotor to achieve an oil-proof seal. Since the rotor manufacturing process is carried out manually, that is, the rotor is manually placed into the mold and then removed after molding, the efficiency of the loading and unloading operation is low, which affects the production efficiency. In addition, the rotor is at a high temperature after injection molding, and direct contact can easily cause burns, posing a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a rotor injection molding machine to solve the technical problems of low production efficiency and safety hazards in the existing technology.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A rotor injection molding machine is provided, comprising: a feeding device for providing a material tray loaded with a rotor and moving the tray along a first direction, wherein the rotor is placed on the material tray with its commutator-equipped end facing upwards, and the rotor's axis is perpendicular to the bottom surface of the material tray; an injection molding device including an injection mold for injection molding the rotor's outer shell; a transfer device disposed between the feeding device and the injection mold, including a flipping device for flipping the rotor so that the commutator-equipped end of the rotor faces downwards and a transfer seat for placing the rotor with the molded outer shell; and a discharging device for feeding the rotor... The device includes a rotor with a housing for moving; and a clamping and transferring device for feeding a rotor on a tray into a flipping device and, after flipping the rotor, feeding it into an injection mold, and feeding a rotor with a housing formed in the injection mold to a feeding device via a transfer seat; the clamping and transferring device includes a crossbeam extending along a second direction perpendicular to a first direction, a mounting frame movably mounted on the crossbeam along the second direction, a translation drive mechanism for driving the mounting frame to move along the second direction, and a plurality of clamping units that are vertically mounted on the mounting frame and used to clamp the rotor, the plurality of clamping units being arranged side by side along the first direction and being movable relative to the mounting frame in the first direction.

[0005] In some embodiments, the clamping and transfer device further includes a movable bracket movably mounted on a mounting frame in a first direction, a displacement drive mechanism for driving the movable bracket to move in the first direction, at least one lifting bracket movably mounted on the movable bracket, and a lifting drive mechanism for driving the at least one lifting bracket to move up and down, wherein a plurality of clamping units are disposed on at least one lifting bracket.

[0006] In some embodiments, the number of clamping units is four, and the number of lifting brackets is two, with two clamping units provided on each lifting bracket; the clamping unit on each lifting bracket that is closer to the other lifting bracket is fixedly disposed on the lifting bracket, and the clamping unit on each lifting bracket that is farther away from the other lifting bracket is movablely disposed on the lifting bracket along the first direction.

[0007] In some embodiments, the flipping device includes a flipping support frame, a rotating bracket rotatably supported on the flipping support frame for fixing the rotor, and a rotating power member for rotating the rotating bracket, wherein a plurality of insertion slots for inserting the rotor are formed on the rotating bracket.

[0008] In some embodiments, insertion slots are formed on the sidewalls of the rotating bracket and extend through the top and bottom surfaces of the rotating bracket, and each insertion slot is provided with a fixing structure for fixing the rotor.

[0009] In some embodiments, the fixing structure is at least one magnetic element disposed in the insertion groove, and the at least one magnetic element is embedded in the groove wall of the insertion groove.

[0010] In some embodiments, the flipping device further includes a plurality of flushing components disposed below the rotating support, each of the plurality of flushing components corresponding to a plurality of insertion slots, and each flushing component including an adjusting rod for abutting the bottom end of the rotor and an adjusting power component for driving the adjusting rod to rise and fall.

[0011] In some embodiments, a plurality of transfer slots are formed on the transfer base for inserting the ends of the rotor, and the transfer slots are formed on the top surface of the transfer base.

[0012] In some embodiments, the feeding device includes a frame having a conveying channel and a swing bracket located below the clamping and transferring device, one end of the swing bracket being rotatably connected to the frame about a second direction as an axis; the feeding device also includes a recovery channel located below the conveying channel for moving an empty tray and a swing power member for rotating the swing bracket to selectively connect the conveying channel and the recovery channel.

[0013] In some embodiments, the frame is provided with a pressing assembly for pressing the tray against the side wall of the swing bracket in a second direction.

[0014] Compared with the prior art, the rotor injection molding machine provided by this utility model includes a feeding device, an injection device, a transfer device, a unloading device, and a clamping and transferring device. The clamping unit descends and clamps the rotor on the material tray. After the clamping units move upward, they move relative to each other in a first direction to adjust the spacing of the rotors before being fed into the flipping device for flipping. At the same time, the empty clamping unit moves above the injection mold and clamps the rotor with the outer shell and sends the rotor into the transfer seat. Then, the rotor flipped by the flipping device is sent into the injection mold. Then, it returns to the transfer seat and the rotor on the transfer seat is moved to the unloading device. In this way, the automatic loading and unloading of the rotor can be realized, which improves the loading and unloading operation efficiency and production efficiency, and eliminates safety hazards. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the rotor injection molding machine provided in this embodiment of the utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the feeding device and transfer device provided in the embodiments of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the transfer device and the lower mold part provided in the embodiment of this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the clamping and transfer device provided in this embodiment of the utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of the clamping and transfer device provided in this embodiment of the present invention after the crossbeam is hidden;

[0020] Figure 6 This is a three-dimensional schematic diagram of the flipping device provided in an embodiment of the present utility model.

[0021] Explanation of main component symbols

[0022] 100-Rotor housing molding machine; 10-Feeding device; 11-Frame; 12-Conveying channel; 13-Material tray; 131-Fixing hole; 14-Swing bracket; 15-Recovery channel; 16-Swing power component; 17-Top pressure assembly; 20-Injection molding device; 2a-Injection mold; 21-Lower mold part; 211-Injection station; 30-Transfer device; 31-Tilting device; 311-Tilting support frame; 312-Rotating bracket; 313-Insertion slot; 314-Magnetic component; 315-Rotating power component; 316-Flush assembly; 32-Transfer seat; 40-Discharging device; 41-Conveyor belt; 50-Clamping and transferring device; 51-Crossbeam; 52-Mounting frame; 53-Translation drive mechanism; 54-Clamping unit; 55-Moving bracket; 56-Displacement drive mechanism; 57-Lifting bracket; 58-Lifting drive mechanism; 59-Cylinder; 60-Rotor. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the implementation of this utility model will be described in detail below with reference to the specific accompanying drawings.

[0025] For ease of description, the terms "front," "rear," "left," "right," "up," and "down" used below are consistent with the front, rear, left, right, up, and down directions of the accompanying drawings, but do not limit the structure of this utility model.

[0026] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0027] like Figures 1 to 5As shown, the rotor injection molding machine 100 provided in this embodiment includes: a feeding device 10 for providing a material tray 13 loaded with a rotor 60 and moving the material tray 13 along a first direction D1, wherein the rotor 60 is placed on the material tray 13 with the end of the rotor 60 having a commutator facing upwards, and the axis of the rotor 60 is perpendicular to the bottom surface of the material tray 13; an injection molding device 20 including an injection mold 2a for injection molding the rotor 60 into a shell; a transfer device 30 disposed between the feeding device 10 and the injection mold 2a, including a flipping device 31 for flipping the rotor 60 so that the end of the rotor 60 having a commutator facing downwards and a transfer seat 32 for placing the rotor 60 with the shell formed; and a discharging device 40 for moving the rotor 60 with the shell formed. The device includes a clamping and transfer device 50 for feeding the rotor 60 on the tray 13 into the flipping device 31 and feeding the rotor 60 into the injection mold 2a after flipping, and feeding the rotor 60 with the outer shell in the injection mold 2a to the unloading device 40 via the transfer seat 32. The clamping and transfer device 50 includes a crossbeam 51 extending along a second direction perpendicular to the first direction D1, a mounting frame 52 movably mounted on the crossbeam 51 along the second direction D2, a translation drive mechanism 53 for driving the mounting frame 52 to move along the second direction D2, and a plurality of clamping units 54 that are vertically mounted on the mounting frame 52 and used to clamp the rotor 60. The plurality of clamping units 54 are arranged side by side along the first direction D1 and can move relative to the mounting frame 52 in the first direction D1.

[0028] The aforementioned rotor injection molding machine 100 includes a feeding device 10, an injection device 20, a transfer device 30, a discharging device 40, and a clamping and transferring device 50. The clamping unit 54 descends and clamps the rotor 60 on the material tray 13. After the clamping units 54 move upward, they move relative to each other in the first direction D1 to adjust the spacing of the rotor 60 before being fed into the flipping device 31 for flipping. At the same time, the empty clamping unit 54 moves to above the injection mold 2a and clamps the rotor 60 with the outer shell formed, and sends the rotor 60 into the transfer seat 32. Then, the rotor 60 flipped by the flipping device 31 is sent into the injection mold 2a. Then, it returns to the transfer seat 32 and moves the rotor 60 on the transfer seat 32 to the discharging device 40. The above actions are repeated until all the rotors 60 on the material tray 13 have been transferred. Then, the machine switches to the next material tray 13 and continues the above actions. In this way, the automatic loading and unloading of the rotor 60 can be realized, which improves the loading and unloading operation efficiency and production efficiency, and eliminates safety hazards.

[0029] See Figure 1The rotor injection molding machine 100 provided in this embodiment includes a frame (not shown) and a feeding device 10, an injection molding device 20, a transfer device 30, a discharging device 40 and a clamping and transferring device 50 supported on the frame. In this embodiment, the feeding device 10 feed tray 13 moves along the first direction D1 (the D1 direction shown in the figure, hereinafter referred to as the first direction D1), and the discharging device 40, the feeding device 10, the transfer device 30 and the injection molding device 20 are arranged side by side along the second direction D2 (the D2 direction shown in the figure, hereinafter referred to as the second direction D2) which is perpendicular to the first direction D1.

[0030] See Figure 1 and Figure 2 The feeding device 10 provided in this embodiment is used to provide a tray 13 loaded with a rotor 60 and to move the tray 13 along a first direction D1. The rotor 60 is placed on the tray 13 with its commutator end facing upwards, and the axis of the rotor 60 is perpendicular to the bottom surface of the tray 13. In this embodiment, the feeding device 10 includes a frame 11, on which a conveying channel 12 extending along the first direction D1 is provided. The conveying channel 12 can be composed of any existing conveying structure such as a belt, chain, or roller, and can enable the tray 13 to move along the first direction D1 on it. The tray 13 is rectangular but not limited to rectangular. The tray 13 is provided with multiple rows of fixing holes 131 for the shaft of the rotor 60 to be inserted. Each row of fixing holes 131 includes multiple fixing holes 131 arranged at equal intervals. The rotor 60 is placed on the tray 13 at the corresponding fixing hole 131 with its commutator end facing upwards.

[0031] See Figure 1 and Figure 3 The injection molding apparatus 20 provided in this embodiment includes an injection mold 2a for injection molding the outer shell of the rotor 60. In this embodiment, the injection mold 2a includes a lower mold portion 21 and an upper mold portion (not shown) that can be opened and closed. The lower mold portion 21 has injection stations 211 for placing the rotor 60. The number of injection stations 211 is, but not limited to, four. The four injection stations 211 are arranged side by side along a first direction D1. Among the four injection stations 211, the stations at both ends are separated from their adjacent stations by a first preset distance, and the two middle stations are separated by a second preset distance. It is worth mentioning that the rotor 60 enters the injection station 211 of the lower mold portion 21 with the end equipped with the commutator facing downwards.

[0032] See Figure 1 The feeding device 40 provided in this embodiment is used to move the rotor 60 with the outer shell. In this embodiment, the feeding device 40 includes a conveyor belt 41 for placing the rotor 60 after injection molding. Thus, by rotating the conveyor belt 41, the rotor 60 on it is moved out of the rotor injection molding machine 100 in a direction opposite to the first direction D1.

[0033] See Figures 1 to 3 , Figure 6 The transfer device 30 provided in this embodiment is disposed between the feeding device 10 and the injection mold 2a. It includes a flipping device 31 for flipping the rotor 60 so that the end of the rotor 60 with the commutator faces downward, and a transfer seat 32 for placing the rotor 60 with the molded shell. In this embodiment, the feeding device 10, the flipping device 31, the transfer seat 32, and the injection mold 2a are arranged sequentially along the second direction D2. The flipping device 31 includes a flipping support frame 311 and a component rotatably supported on the flipping support frame 311 about the first direction D1. The rotating bracket 312 is used to fix the rotor 60, and the rotating power component 315 is used to rotate the rotating bracket 312. The rotating power component 315 is, but is not limited to, a motor. The rotating bracket 312 has insertion slots 313 for inserting the rotor 60. The number of insertion slots 313 is, but is not limited to, four, which are respectively aligned with the four injection molding stations 211. The insertion slots 313 at both ends are separated from the adjacent insertion slots 313 by the first preset distance, and the two insertion slots 313 in the middle are separated by the second preset distance. In this way, the rotor 60 with one end of the commutator facing upward on the material tray 13 is sent into the flipping device 31. The flipping device 31 flips the rotor 60 180 degrees so that one end of the commutator of the rotor 60 faces downward, and then sends it into the lower mold part 21 of the injection mold 2a for injection molding.

[0034] from Figure 6 As can be seen, in this embodiment, the insertion slot 313 is formed on the side wall of the rotating bracket 312 and extends through the top and bottom surfaces of the rotating bracket 312. Each insertion slot 313 is provided with a fixing structure for fixing the rotor 60. The rotating bracket 312 frame 11 with this structure has a smaller volume and occupies less space.

[0035] See Figure 6 The fixing structure provided in this embodiment is at least one magnetic element 314 disposed in the insertion groove 313. At least one magnetic element 314 is embedded in the groove wall of the insertion groove 313. In this embodiment, the number of magnetic elements 314 in each insertion groove 313 is, but not limited to, two. In this way, the magnetic element 314 attracts the iron core of the rotor 60, thereby keeping the rotor 60 in the insertion groove 313 of the rotating bracket 312.

[0036] Please continue reading Figure 6 The flipping device 31 provided in this embodiment also includes a leveling component 316 disposed below the rotating bracket 312. The number of leveling components 316 is not limited to four. The four leveling components 316 correspond one-to-one with the four insertion slots 313. Each leveling component 316 includes an adjusting rod for the bottom end of the rotor 60 to abut against and an adjusting power component for driving the adjusting rod to rise and fall. The adjusting power component is, but is not limited to, a cylinder, which is fixed on the frame.

[0037] See Figure 2 , Figure 3 and Figure 6 In this embodiment, a transfer groove (not shown) is formed on the transfer base 32 for the end of the rotor 60 to be inserted. The transfer groove is formed on the top surface of the transfer base 32. The number of transfer grooves is, but not limited to, four, and they are respectively aligned with the four injection molding stations 211.

[0038] See Figure 1 , Figure 4 and Figure 5 The clamping and transferring device 50 provided in this embodiment is used to feed the rotor 60 on the material tray 13 into the flipping device 31 and, after the rotor 60 is flipped, to the injection mold 2a, and to send the rotor 60 with the outer shell formed in the injection mold 2a to the unloading device 40 via the transfer seat 32; the clamping and transferring device 50 includes a crossbeam 51 extending along a second direction D2 perpendicular to the first direction D1, a mounting bracket 52 movably mounted on the crossbeam 51 along the second direction D2, and a translational drive mechanism 53 for driving the mounting bracket 52 to move along the second direction D2. The mounting frame 52 is equipped with multiple clamping units 54 that are vertically and flexibly mounted on it for clamping the rotor 60. In this embodiment, the translation drive mechanism 53 is, but is not limited to, a linear motor drive mechanism, and the number of clamping units 54 is, but is not limited to, four. The four clamping units 54 are arranged side by side along the first direction D1 and can move relative to the mounting frame 52 in the first direction D1. The movement path of the mounting frame 52 covers the unloading device 40, the loading device 10, the flipping device 31 and the transfer seat 32 of the transfer device 30, and the lower mold portion of the injection mold 2a. 21. Thus, driven by the translation drive mechanism 53, the mounting frame 52 and the clamping unit 54 can move along the second direction D2 between the unloading device 40, the loading device 10, the flipping device 31 and the transfer seat 32 of the transfer device 30, and the lower mold portion 21 of the injection mold 2a. It is easy to understand that the four clamping units 54 descend and clamp the four adjacent rotors 60 in the same row on the material tray 13. After the clamping units 54 move upward, they move relative to each other in the first direction D1 to adjust the spacing between the four rotors 60 to the aforementioned first preset spacing and second preset spacing. The rotor 60 is fed into the flipping device 31 for flipping after a preset spacing. At the same time, the empty clamping unit 54 moves above the injection mold 2a and clamps the rotor 60 with the outer shell and feeds the rotor 60 into the transfer seat 32. The rotor 60, after being flipped by the flipping device 31, is then fed into the injection mold 2a. It then returns to the transfer seat 32 and moves the rotor 60 on the transfer seat 32 to the unloading device 40. The above actions are repeated until all the rotors 60 on the material tray 13 have been transferred. Then, the process is switched to the next material tray 13 to continue the above actions.

[0039] See Figure 1 , Figure 4and Figure 5 The clamping and transferring device 50 provided in this embodiment further includes a movable bracket 55 movably mounted on a mounting frame 52 along a first direction D1, a displacement driving mechanism 56 for driving the movable bracket 55 to move along the first direction D1, at least one lifting bracket 57 movably mounted on the movable bracket 55, and a lifting driving mechanism 58 for driving the at least one lifting bracket 57 to move up and down. Multiple clamping units 54 are disposed on at least one lifting bracket 57. In this embodiment, the displacement driving mechanism 56 is, but is not limited to, a motor screw drive mechanism, and the number of lifting brackets 57 is, but not limited to, two. The two lifting brackets 57 are arranged side-by-side along the first direction D1. The driving mechanism 58 is, but is not limited to, a motor screw drive mechanism. Each lifting bracket 57 is equipped with two clamping units 54. It can be understood that the lifting drive mechanism 58 can drive the lifting bracket 57 and the clamping units 54 to lift. The lifting is controlled by two lifting brackets 57 separately because the distance between the two lifting brackets 57 is greater than the distance between adjacent rotors 60 in the same row on the material tray 13. The initial distance between the two clamping units 54 on the same lifting bracket 57 is basically equal to the distance between adjacent rotors 60 in the same row on the material tray 13. In this way, when clamping the rotor 60 on the material tray 13, the two lifting brackets 57 can use a sequential lifting method to grab the rotor 60.

[0040] See Figure 1 , Figure 4 and Figure 5 In this embodiment, there are two lifting brackets 57, and each lifting bracket 57 is provided with two clamping units 54. The clamping units 54 on each lifting bracket 57 that are closer to the other lifting bracket 57 are fixedly mounted on the lifting bracket 57, and the clamping units 54 on each lifting bracket 57 that are farther away from the other lifting bracket 57 are movably mounted on the lifting bracket 57 along the first direction D1. It is worth mentioning that among the four clamping units 54, the two middle clamping units 54 are respectively fixedly mounted on the corresponding lifting brackets 57, and these two clamping units... 54 are separated by the second preset distance. The clamping units 54 at both ends of the four clamping units 54 are connected to the adjacent clamping units 54 by cylinders 59. That is, after all four clamping units 54 have completed clamping the rotor 60 on the material tray 13, the cylinders 59 will push the clamping units 54 at both ends to move outward respectively, thereby separating the clamping units 54 at both ends from the adjacent clamping units 54 by the first preset distance. Thus, the four rotors 60 clamped by the clamping units 54 are spaced apart by the first preset distance and the second preset distance.

[0041] See Figure 1 and Figure 2In this embodiment, the feeding device 10 includes a swing bracket 14 located below the clamping and transferring device 50. One end of the swing bracket 14 is rotatably connected to the frame 11 with the second direction D2 as the axis. The feeding device 10 also includes a recycling channel 15 located below the conveying channel 12 for moving empty material trays 13, and a swing power member 16 for rotating the swing bracket 14 to selectively connect the conveying channel 12 and the recycling channel 15. The swing power member 16 is, but is not limited to, a cylinder. Thus, when the material trays 13 on the swing bracket 14 are emptied, the swing bracket 14 swings downward and sends the empty material trays 13 to the recycling channel 15 to be removed from the rotor injection molding machine 100. After the swing bracket 14 swings upward and resets, the conveying channel 12 pushes the next material tray 13 into the swing bracket 14.

[0042] See Figure 2 In this embodiment, a pressing component 17 is provided on the frame 11 to press the material tray 13 against the side wall of the swing bracket 14 along the second direction D2. The pressing component 17 is, but is not limited to, a cylinder pressing component. In this way, the material tray 13 is pressed tightly onto the swing bracket 14 by the pressing component 17, and the rotor 60 on the material tray 13 is clamped to ensure that the material tray 13 will not be dragged or shaken.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotor injection molding machine, characterized in that, include: A feeding device for providing a tray loaded with a rotor and moving the tray in a first direction, the rotor being placed on the tray with its commutator-equipped end facing upwards, and the axis of the rotor being perpendicular to the bottom surface of the tray; an injection molding device including an injection mold for injection molding a housing of the rotor; a transfer device disposed between the feeding device and the injection mold, including a flipping device for flipping the rotor so that the commutator-equipped end of the rotor faces downwards and a transfer seat for placing the rotor with the housing formed; an unloading device for moving the rotor with the housing formed; and a clamping and transferring device for transferring the rotor with the housing formed. The rotor on the material tray is fed into the flipping device and, after the rotor is flipped, is sent into the injection mold. The rotor with the outer shell in the injection mold is sent to the unloading device via the transfer seat. The clamping and transferring device includes a crossbeam extending along a second direction perpendicular to the first direction, a mounting frame movably mounted on the crossbeam along the second direction, a translation drive mechanism for driving the mounting frame to move along the second direction, and a plurality of clamping units that are vertically mounted on the mounting frame and used to clamp the rotor. The plurality of clamping units are arranged side by side along the first direction and can move relative to the mounting frame in the first direction.

2. The rotor injection molding machine according to claim 1, characterized in that, The clamping and transfer device further includes a movable bracket movably mounted on the mounting frame along the first direction, a displacement drive mechanism for driving the movable bracket to move along the first direction, at least one lifting bracket movably mounted on the movable bracket, and a lifting drive mechanism for driving at least one of the lifting brackets to move up and down, wherein a plurality of the clamping units are disposed on at least one of the lifting brackets.

3. The rotor injection molding machine according to claim 2, characterized in that, The number of clamping units is four, and the number of lifting brackets is two. Each lifting bracket is provided with two clamping units. The clamping unit on each lifting bracket that is close to the other lifting bracket is fixedly disposed on the lifting bracket, and the clamping unit on each lifting bracket that is away from the other lifting bracket is movablely disposed on the lifting bracket along the first direction.

4. The rotor injection molding machine according to any one of claims 1 to 3, characterized in that, The flipping device includes a flipping support frame, a rotating bracket rotatably supported on the flipping support frame and used to fix the rotor, and a rotating power component for rotating the rotating bracket. The rotating bracket has a plurality of insertion slots for inserting the rotor.

5. The rotor injection molding machine according to claim 4, characterized in that, The insertion slot is formed on the side wall of the rotating bracket and extends through the top and bottom surfaces of the rotating bracket. Each insertion slot is provided with a fixing structure for fixing the rotor.

6. The rotor injection molding machine according to claim 5, characterized in that, The fixing structure is at least one magnetic element disposed in the insertion groove, and at least one of the magnetic elements is embedded in the groove wall of the insertion groove.

7. The rotor injection molding machine according to claim 4, characterized in that, The flipping device also includes a plurality of flushing components disposed below the rotating support. Each of the plurality of flushing components corresponds one-to-one with a plurality of insertion slots. Each of the flushing components includes an adjusting rod for abutting the bottom end of the rotor and an adjusting power component for driving the adjusting rod to rise and fall.

8. The rotor injection molding machine according to claim 4, characterized in that, The transfer base has a plurality of transfer slots formed on its top surface for inserting the ends of the rotor.

9. The rotor injection molding machine according to any one of claims 1 to 3, characterized in that, The feeding device includes a frame with a conveying channel and a swing bracket located below the clamping and transferring device. One end of the swing bracket is rotatably connected to the frame about the second direction. The feeding device also includes a recycling channel located below the conveying channel for moving an empty tray and a swing power component for rotating the swing bracket to selectively connect the conveying channel and the recycling channel.

10. The rotor injection molding machine according to claim 9, characterized in that, The frame is equipped with a pressing assembly for pressing the tray against the side wall of the swing bracket along the second direction.

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