Injection molding bushing feeder

Abstract

The application discloses a bushing feeding machine for injection molding, which comprises a rack, a flexible vibration disc, a stock bin, a positioning base, a light source plate, a visual device, an XYZ axis transfer module, a taking and placing mechanism and a controller. The rack comprises a frame body and a stand. The flexible vibration disc is assembled on the top of the frame body; the stock bin and the positioning base are respectively located on the two sides of the flexible vibration disc, and a plurality of positioning pins are arranged on the positioning base and protrude upward; the light source plate is located above the flexible vibration disc and is provided with an avoiding through hole; the visual device is arranged in the avoiding through hole; the XYZ axis transfer module is assembled on the stand; the taking and placing mechanism is assembled on the XYZ axis transfer module and comprises a turnover driver, a rotary driver and a grabbing assembly; and the controller is electrically connected with the flexible vibration disc, the visual device, the XYZ axis transfer module and the taking and placing mechanism. The bushing can be correctly placed on the positioning pins from the disorderly arrangement, so that the position of the bushing embedded in the mold in the future is correctly oriented.

Description

TECHNICAL FIELD

[0001] The present application relates to a feeding machine for injection molding, in particular to a sleeve feeding machine for injection molding. BACKGROUND

[0002] It is known that a fan comprises a fan blade with a shaft body and a fan shell with a sleeve, and the fan blade is assembled on the fan shell by inserting and fitting the shaft body and the sleeve.

[0003] In the production process of the fan shell, an injection mold is used, the sleeve is first buried in the injection mold, and then the molten material is injected into the injection mold to obtain the fan shell with the sleeve.

[0004] At present, the operator manually places the sleeve at the feeding position, and then the mechanical hand of the injection molding machine takes away the sleeve at the feeding position and buries it in the injection mold, so there are defects of low efficiency and heavy burden on the operator, and it cannot adapt to the occasion of automatic operation.

[0005] Therefore, there is an urgent need for a sleeve feeding machine for injection molding to overcome the above-mentioned defects. SUMMARY

[0006] The purpose of the present application is to provide a sleeve feeding machine for injection molding, which can correctly place the disordered sleeves on the positioning pins, so as to ensure that the subsequent position of the sleeve buried in the injection mold is correctly oriented.

[0007] In order to achieve the above object, the bush feeding machine for injection molding comprises a frame, a flexible vibration disc, a hopper, a positioning base, a light source plate, a vision device, an XYZ axis transfer module, a taking and placing mechanism and a controller. The frame comprises a frame body and a stand protruding upward from the top of the frame body; the flexible vibration disc is assembled on the top of the frame body; the hopper is assembled on the top of the frame body and makes the bush fall into the flexible vibration disc, and the hopper is located beside one side of the flexible vibration disc; the positioning base is assembled on the top of the frame body and located beside the other side of the flexible vibration disc opposite to the one side, and a plurality of positioning pins protruding upward and spaced from each other are arranged on the positioning base; the light source plate is located above the flexible vibration disc, and an avoiding through hole is formed in the center of the light source plate; the vision device is arranged in the avoiding through hole and visually collects the bush spread by the flexible vibration disc; the XYZ axis transfer module is assembled on the stand; the taking and placing mechanism is assembled on the XYZ axis transfer module, and the taking and placing mechanism comprises a turnover driver, a rotation driver and a grabbing component; the turnover driver is used to drive the rotation driver and the grabbing component to switch between the horizontal position and the vertical position; the rotation driver is used to drive the grabbing component to rotate around a horizontal center line to change the direction of the bush grabbed by the grabbing component; and the controller is electrically connected with the flexible vibration disc, the vision device, the XYZ axis transfer module and the taking and placing mechanism respectively, and the controller controls the XYZ axis transfer module and the taking and placing mechanism to coordinate according to the collection information fed back by the vision device, so that the taking and placing mechanism correctly places the bush spread by the flexible vibration disc on the positioning pins under the cooperation of the XYZ axis transfer module.

[0008] Compared with the prior art, before the taking and placing mechanism grabs the bush in the flexible vibration disc, the vision device first visually collects the bush spread by the flexible vibration disc and feeds back the collection signal to the controller, and the controller processes the signal; after processing, the controller controls the XYZ axis transfer module and the taking and placing mechanism to coordinate, so that the taking and placing mechanism correctly places the bush spread by the flexible vibration disc on the positioning pins under the cooperation of the XYZ axis transfer module; thereby ensuring that the position of the bush embedded in the injection mold is correctly oriented. In addition, since the vision device is arranged in the avoiding through hole formed in the center of the light source plate, the light source plate provides the vision device with a uniform lighting effect from the center to the periphery, thereby improving the reliability of the visual collection of the vision device; and the taking and placing mechanism comprises the turnover driver, the rotation driver and the grabbing component, which effectively ensures that the flat bush in the flexible vibration disc is correctly placed on the positioning pins in an upright manner.

[0009] Preferably, the shaft sleeve feeding machine for injection molding of the present application further comprises reciprocating drivers electrically connected with the controller, the reciprocating drivers are arranged on the opposite sides of the flexible vibration disc respectively, the side of the flexible vibration disc where the reciprocating driver is located is adjacent to the side of the flexible vibration disc where the hopper is located; the positioning base is slidably arranged on the top of the frame, the positioning base is further assembled and connected with the output end of the reciprocating driver, and the positioning base can be switched between at least a discharging position and a receiving position under the driving of the reciprocating driver; the positioning base is close to the flexible vibration disc when it is in the receiving position, and the positioning base is away from the flexible vibration disc when it is in the discharging position.

[0010] Preferably, the positioning base comprises a base body and a plug-in body which can be plugged into the base body from above, the plug-in body has a round boss and a plug-in column below the round boss, a sleeve is arranged on the base body for plug-in cooperation with the plug-in column, and a first through hole is arranged on the sleeve and penetrates the sleeve laterally; the positioning pin is arranged above and connected with the round boss, and the round boss further protrudes laterally from the positioning pin.

[0011] Preferably, a second through hole is arranged on the plug-in column and penetrates the plug-in column laterally and is aligned with the first through hole; the center lines of the plug-in column, the round boss and the positioning pin are coincident.

[0012] Preferably, the base body is in the shape of a "door", so that the positioning pin is higher than the flexible vibration disc.

[0013] Preferably, the reciprocating driver is a pneumatic cylinder or a hydraulic cylinder.

[0014] Preferably, the stand is a gantry, and the hopper is also located in the space surrounded by the gantry.

[0015] Preferably, the hopper comprises an upper hopper arranged vertically and a lower hopper arranged horizontally, and the lower hopper further partially extends above the flexible vibration disc; the flexible vibration disc is in the shape of a square.

[0016] Preferably, the turnover driver is a telescopic pneumatic cylinder or a telescopic hydraulic cylinder, the rotation driver is a rotary pneumatic cylinder or a rotary hydraulic cylinder, and the grabbing assembly is a pneumatic finger.

[0017] Preferably, the positioning pin is a stepped shaft with a small upper end and a large lower end, and a chamfer structure is arranged on the upper end of the stepped shaft. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the shaft sleeve feeding machine for injection molding of the present application.

[0019] Figure 2 is a perspective view showing the hopper and the flexible vibration tray.

[0020] Figure 3 is a perspective view showing the positioning base being fitted with the bushing on the positioning pin on the left side.

[0021] Figure 4 is a perspective exploded view of Figure 3 .

[0022] Figure 5 is a perspective view showing the insertion body and the positioning pin thereon.

[0023] Figure 6 is a perspective view showing the pick-and-place mechanism at the horizontal position of the rotary driver and the grabbing assembly.

[0024] Figure 7 is a plan view of Figure 6 .

[0025] Figure 8 is a plan view of the rotary driver and the grabbing assembly being at the vertical position based on Figure 7 .

[0026] Figure 9 is a plan view showing the controller being electrically connected with the flexible vibration tray, the vision device, the XYZ axis transfer module, the pick-and-place mechanism and the reciprocating driver respectively.

[0027] Figure 10 is a perspective view showing the bushing being correctly oriented. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application will be described below with reference to the accompanying drawings.

[0029] Please refer to Figure 1 , the bushing feeding machine 100 for injection molding of the present application is suitable for vibrating and spreading the disordered bushings 200, and placing the spreaded bushings 200 on the positioning pins 41 described below in the correct orientation, so as to ensure that the robot of the injection molding machine correctly embeds the bushings 200 on the positioning pins 41 into the injection mold.

[0030] Further combining Figure 3 and Figure 9 , the bushing feeding machine 100 for injection molding of the present application comprises a frame 10, a flexible vibration tray 20, a hopper 30, a positioning base 40, a light source plate 50, a vision device 60, an XYZ axis transfer module 70, a pick-and-place mechanism 80 and a controller 90a. The frame 10 includes a frame body 11 and a stand 12 protruding upwardly from the top 111 of the frame body 11. Optionally, a plurality of wheels 13 are arranged on the bottom 112 of the frame body 11. Figure 1In the embodiment, as an example, the frame body 11 is a square frame body, and the stand 12 is a gantry arranged at the back side of the top 111 of the frame body 11. In this way, the stand 12 can leave more space for the top 111 of the frame body 11, thereby facilitating the arrangement of the flexible vibration disc 20 and the positioning base 40 on the top 111 of the frame body 11. In addition, the stand 12 is a gantry, and the hopper 30 can be arranged in the gantry, thereby making the hopper 30 more compact with the stand 12. Obviously, according to actual needs, the shapes of the frame body 11 and the stand 12 can also be other shapes, and are not limited to the shapes shown in Figure 1 .

[0031] The flexible vibration disc 20 is arranged on the top 111 of the frame body 11, and the frame body 11 provides support for the flexible vibration disc 20. Optionally, in Figure 1 and Figure 2 , as an example, the flexible vibration disc 20 is square, so as to facilitate the flexible vibration disc 20 to spread the disorderly dropped shaft sleeves 200 in the flexible vibration disc 20, and effectively prevent the shaft sleeves 200 from being stacked. Obviously, according to actual needs, the shape of the flexible vibration disc 20 can also be other shapes, and is not limited to the shape shown in Figure 1 and Figure 2 .

[0032] The hopper 30 is arranged on the top 111 of the frame body 11, and the top 111 of the frame body 11 provides support for the hopper 30. The hopper 30 also makes the shaft sleeves 200 fall into the flexible vibration disc 20, and the hopper 30 is located beside the other side of the flexible vibration disc 20 (for example, but not limited to the back side in Figure 1 ). Optionally, in Figure 1 and Figure 2 , as an example, the hopper 30 includes an upper hopper 31 arranged vertically and a lower hopper 32 arranged horizontally, and the lower hopper 32 also partially extends to the corresponding upper side of the flexible vibration disc 20. Therefore, by means of the horizontally arranged lower hopper 32, the lower hopper 32 serves as a bridge between the upper hopper 31 and the flexible vibration disc 20, so that the upper hopper 31 and the flexible vibration disc 20 can be arranged staggered, thereby making the hopper 30 located in the space surrounded by the gantry. Obviously, according to actual needs, the hopper 30 can also be other structures, and is not limited to the structure shown in Figure 2 .

[0033] The positioning base 40 is arranged on the top 111 of the frame body 11, and the frame body 11 provides support for the positioning base 40. The positioning base 40 is also located beside the other side of the flexible vibration disc 20 (for example, but not limited to the front side in Figure 1 ). The positioning base 40 is provided with two positioning pins 41 which are spaced apart from each other and protrude upward. Obviously, according to actual needs, the number of the positioning pins 41 can also be three, four or five, and is not limited to the number shown in Figure 3 andFigure 4 The above is only an example and is not intended to be limiting.

[0034] The light source plate 50 is located directly above the flexible vibration tray 20 to meet the need of the light source plate 50 irradiating the flexible vibration tray 20 from above the flexible vibration tray 20; a through hole 51 is formed at the center of the light source plate 50; optionally, as an example, the through hole 51 is a circular hole; obviously, according to actual needs, the through hole 51 can also be an elliptical hole or a regular polygonal hole, and therefore the above is not intended to be limiting. Figure 1 Figure 1 The above is only an example and is not intended to be limiting.

[0035] The visual device 60 is arranged in the through hole 51 to ensure that the light source plate 50 provides the visual device 60 with a central-to-peripheral lighting effect; the visual device 60 is used for visually collecting the shaft sleeve 200 spread by the flexible vibration tray 20; optionally, as an example, the visual device 60 is a CCD camera; obviously, according to actual needs, the visual device 60 can also be a structure known in the art, and therefore the above is not intended to be limiting.

[0036] The XYZ-axis transfer module 70 is assembled on the stand 12, and the stand 12 provides support for the XYZ-axis transfer module 70; since the structure of the XYZ-axis transfer module 70 is known in the art, it will not be described here.

[0037] The pick-and-place mechanism 80 is assembled on the XYZ-axis transfer module 70 to meet the need of the XYZ-axis transfer module 70 driving the pick-and-place mechanism 80 to move along the X-axis, the Y-axis, and the Z-axis; the pick-and-place mechanism 80 includes a turnover driver 81, a rotation driver 82, and a grabbing assembly 83; the turnover driver 81 is used to drive the rotation driver 82 and the grabbing assembly 83 to switch between the horizontal position as shown in Figure 7 and the vertical position as shown in Figure 8 The rotation driver 82 is used to drive the grabbing assembly 83 to rotate around a horizontal center line (see the center line in Figure 7 , so as to change the orientation of the shaft sleeve 200 grabbed by the grabbing assembly 83, that is, when one end of the shaft sleeve 200 where the ring groove 210 is located faces downward, at this time, the rotation driver 82 is required to drive the grabbing assembly 83 to rotate 180 degrees around a horizontal center line (see the center line in Figure 7 , so that one end of the shaft sleeve 200 where the ring groove 210 is located faces upward, as shown in Figure 10 .

[0038] ​The controller 90a is electrically connected with the flexible vibration plate 20, the visual device 60, the XYZ axis transfer module 70 and the pick-and-place mechanism 80 respectively. The controller 90a controls the XYZ axis transfer module 70 and the pick-and-place mechanism 80 to move in coordination according to the feedback information collected by the visual device 60, so that the pick-and-place mechanism 80 can place the shaft sleeve 200 spread on the flexible vibration plate 20 on the positioning pin 41 under the cooperation of the XYZ axis transfer module 70. The state is shown in Figure 1 and Figure 3 Specifically, in Figure 1 , as an example, the shaft sleeve feeding machine 100 for injection molding of the present application further comprises a reciprocating driver 90b electrically connected with the controller 90a. The reciprocating driver 90b is arranged on the two opposite sides of the flexible vibration plate 20, for example, but not limited to the left and right sides in Figure 1 . The side of the flexible vibration plate 20 where the reciprocating driver 90b is located is adjacent to the side of the flexible vibration plate 20 where the hopper 30 is located. The positioning base 40 is slidably arranged on the top 111 of the frame body 11 and is assembled and connected with the output end 91 of the reciprocating driver 90b. The positioning base 40 can be switched between at least one discharging position (the dashed line part indicated by the reference numeral 40 in Figure 1 ) and one receiving position (the solid line part indicated by the reference numeral 40 in Figure 1 ). The positioning base 40 is close to the flexible vibration plate 20 when it is in the receiving position and is away from the flexible vibration plate 20 when it is in the discharging position. This design leaves more operation space for the robot of the injection molding machine to take out the shaft sleeve 200 on the positioning pin 41. More specifically, as follows:

[0039] As shown in Figure 3 and Figure 4 , as an example, the positioning base 40 comprises a base body 40a and a plug-in body 40b which can be plugged into the base body 40a from above. The plug-in body 40b has a round boss 42 and a plug-in column 43 below the round boss 42. At this time, the positioning pin 41 is arranged above and connected with the round boss 42, and the round boss 42 also protrudes laterally from the positioning pin 41. The shaft sleeve 200 sleeved on the positioning pin 41 can be supported from below by the round boss 42. The state is shown in Figure 3 . Alternatively, in Figure 4 , as an example, the center lines of the plug-in column 43, the round boss 42 and the positioning pin 41 coincide with each other to facilitate the processing and manufacturing of the three. Obviously, according to actual needs, the center line relationship of the plug-in column 43, the round boss 42 and the positioning pin 41 can also be other, so it is not limited to Figure 4The base body 40a is provided with a sleeve 44 for inserting and matching the inserting column 43. The sleeve 44 is provided with a first through hole 441 which is laterally through the sleeve 44. The inserting column 43 and the sleeve 44 are fixed by the inserting and pulling member after the inserting column 43 is inserted into the sleeve 44. The inserting and pulling member facilitates the assembling and disassembling operation of the inserting body 40b relative to the base body 40a. Therefore, the positioning pin 41 can be replaced according to the shape of the shaft sleeve 200, thereby improving the versatility of the shaft sleeve feeding machine 100 for injection molding. Figure 2 to Figure 4 The base body 40a is provided with a sleeve 44 for inserting and matching the inserting column 43. The sleeve 44 is provided with a first through hole 441 which is laterally through the sleeve 44. The inserting column 43 and the sleeve 44 are fixed by the inserting and pulling member after the inserting column 43 is inserted into the sleeve 44. The inserting and pulling member facilitates the assembling and disassembling operation of the inserting body 40b relative to the base body 40a. Therefore, the positioning pin 41 can be replaced according to the shape of the shaft sleeve 200, thereby improving the versatility of the shaft sleeve feeding machine 100 for injection molding. Figure 4 The base body 40a is provided with a sleeve 44 for inserting and matching the inserting column 43. The sleeve 44 is provided with a first through hole 441 which is laterally through the sleeve 44. The inserting column 43 and the sleeve 44 are fixed by the inserting and pulling member after the inserting column 43 is inserted into the sleeve 44. The inserting and pulling member facilitates the assembling and disassembling operation of the inserting body 40b relative to the base body 40a. Therefore, the positioning pin 41 can be replaced according to the shape of the shaft sleeve 200, thereby improving the versatility of the shaft sleeve feeding machine 100 for injection molding.

[0040] As shown in Figure 1 As an example, the reciprocating driver 90b is a pneumatic cylinder, so that the positioning base 40 is quickly switched between the discharging position and the receiving position. Obviously, according to actual needs, the reciprocating driver 90b can also be a hydraulic cylinder, so it is not limited to Figure 1 The reciprocating driver 90b is arranged on the opposite sides of the flexible vibration disc 20 and is assembled and connected with the positioning base 40. The two ends of the positioning base 40 are driven by the corresponding reciprocating drivers 90b. Therefore, the reciprocating sliding of the positioning base 40 is more stable and smooth.

[0041] As shown in Figure 6 to Figure 8 As an example, the turnover driver 81 is a telescopic pneumatic cylinder, so that the rotating driver 82 together with the grabbing assembly 83 is quickly switched between the horizontal position and the vertical position. Obviously, according to actual needs, the turnover driver 81 can also be a telescopic hydraulic cylinder. In addition, the rotating driver 82 is a rotating pneumatic cylinder, so that the grabbing assembly 83 is quickly rotated and switched between the two limit positions. Obviously, according to actual needs, the rotating driver 82 can also be a rotating hydraulic cylinder. Furthermore, the grabbing assembly 83 is a pneumatic finger, so as to simplify the structure of the grabbing assembly 83.

[0042] The working process of the shaft sleeve feeding machine for injection molding is described in combination with the drawings:

[0043] A certain amount of bushings 200 is added into the hopper 30, and the bushings 200 added into the hopper 30 fall along the hopper 30 and drop into the flexible vibrating tray 20.

[0044] The flexible vibrating tray 20 spreads the bushings 200 by vibration, avoiding the situation that the bushings 200 are stacked.

[0045] The vision device 60 visually collects the bushings 200 spread by the flexible vibrating tray 20 and feeds the collection signal to the controller 90a, and after the vision device 60 processes the signal, the controller 90a controls the XYX axis transfer module 70 and the pick-and-place mechanism 80 to coordinate actions, so that the pick-and-place mechanism 80 correctly places the bushings 200 spread by the flexible vibrating tray 20 on the positioning pin 41 under the cooperation of the XYZ axis transfer module 70; specifically, in the process of grabbing the bushings 200 spread by the flexible vibrating tray 20, the rotation driver 82 and the grabbing assembly 83 are switched from the horizontal position to the vertical position by the flip driver 81; and in the process of placing the bushings 200 on the positioning pin 41, the rotation driver 82 and the grabbing assembly 83 are switched from the vertical position to the horizontal position by the flip driver 81; when the bushings 200 are in the wrong direction, the rotation driver 82 also drives the grabbing assembly 83 to rotate together with the bushings 200 grabbed by the grabbing assembly 83.

[0046] Thus, the purpose of automatically and correctly placing the bushings 200 in disorder on the positioning pin 41 is achieved. It is worth noting that the above steps are only illustrative, and the working process of the bushing feeder 100 for injection molding cannot be limited by the above steps.

[0047] Compared with the prior art, before the pick-and-place mechanism 80 grabs the bushings 200 in the flexible vibrating tray 20, the vision device 60 first visually collects the bushings 200 spread by the flexible vibrating tray 20 and feeds the collection signal to the controller 90a, and the controller 90a processes the signal; after processing, the controller 90a controls the XYZ axis transfer module 70 and the pick-and-place mechanism 80 to coordinate actions, so that the pick-and-place mechanism 80 correctly places the bushings 200 spread by the flexible vibrating tray 20 on the positioning pin 41 under the cooperation of the XYZ axis transfer module 70; thereby ensuring that the position of the bushings 200 subsequently embedded in the injection mold is in the correct direction. In addition, since the vision device 60 is arranged in the avoiding through hole 51 in the center of the light source plate 50, the light source plate 50 provides the vision device 60 with a uniform distribution of lighting effect from the center to the periphery, improving the reliability of the vision collection of the vision device 60; with the help of the pick-and-place mechanism 80 including the flip driver 81, the rotation driver 82 and the grabbing assembly 83, the flat bushings 200 in the flexible vibrating tray 20 are effectively placed in the correct direction on the positioning pin 41.

[0048] The above-described are only preferred examples of the present application, which are used to facilitate the understanding and implementation of the present application by those skilled in the art, and certainly cannot be used to limit the scope of the present application. Therefore, equivalent changes made within the scope of the patent application of the present application still belong to the scope of the present application.

Claims

1. A sleeve feeder for injection molding, characterized in that: include: The frame comprises a frame body and a stand protruding upward from the top of the frame body, wherein the stand is a gantry frame arranged at the rear side of the top of the frame body; A flexible vibration plate is mounted on the top of the frame; A silo is assembled on the top of the frame and allows the sleeve to fall into the flexible vibration plate, and the silo is located next to one side of the flexible vibration plate; A positioning base is assembled on the top of the frame and is located on the other side opposite to the flexible vibration disk, the positioning base is provided with a plurality of positioning pins spaced from each other and protruding upward, the positioning pins are stepped shafts with a smaller upper portion and a larger lower portion, the positioning base comprises a base body and an inserting body that can be inserted into the base body from the top of the base body, the inserting body has a circular boss and a plug-in column located below the circular boss, the base body is provided with a sleeve for the plug-in column to be inserted and matched, the sleeve is provided with a first through hole that laterally penetrates the sleeve; the positioning pin is arranged above the circular boss and connected to the circular boss, and the circular boss also protrudes laterally from the positioning pin; A light source plate is located directly above the flexible vibration plate, and a through hole is provided at the center of the light source plate; a visual device, arranged in the avoidance through hole and performing visual collection on the shaft sleeve spread out by the vibration of the flexible vibration disk; An XYZ-axis transfer module is mounted on the stand; a pick-and-place mechanism, mounted on the XYZ-axis transfer module, comprising a flip driver, a rotation driver, and a gripping assembly; the flip driver is used to drive the rotation driver and the gripping assembly to switch between a horizontal position and a vertical position; the rotation driver is used to drive the gripping assembly to rotate about a horizontal centerline to change the orientation of the sleeve gripped by the gripping assembly; as well as The controller is electrically connected to the flexible vibration disk, the visual device, the XYZ-axis transfer module and the pick-and-place mechanism respectively. The controller controls the coordinated actions of the XYZ-axis transfer module and the pick-and-place mechanism based on the collected information fed back by the visual device, so that the pick-and-place mechanism, with the cooperation of the XYZ-axis transfer module, can correctly place the sleeve spread out by the flexible vibration disk on the positioning pin.

2. The injection molding sleeve feeder according to claim 1, wherein: It also includes a reciprocating drive electrically connected to the controller, the reciprocating drive is respectively arranged on two opposite sides of the flexible vibration disk, and the side of the flexible vibration disk where the reciprocating drive is located is adjacent to the side of the flexible vibration disk where the silo is located; the positioning base can be slid reciprocatingly on the top of the frame, and the positioning base is also assembled and connected to the output end of the reciprocating drive. The positioning base can be switched between at least a discharging position and a receiving position under the drive of the reciprocating drive; the positioning base is close to the flexible vibration disk at the receiving position, and the positioning base is away from the flexible vibration disk at the discharging position.

3. The injection molding sleeve feeder according to claim 1, wherein: The plug-in post is provided with a second through hole that laterally passes through the plug-in post and is aligned with the first through hole; the center lines of the plug-in post, the circular boss and the positioning pin coincide with each other.

4. The injection molding sleeve feeder according to claim 1, wherein: The base body is in a "door" shape so that the positioning pin is higher than the flexible vibration plate.

5. The injection molding sleeve feeder according to claim 2, wherein: The reciprocating drive is a pneumatic cylinder or a hydraulic cylinder.

6. The injection molding sleeve feeder according to claim 1, wherein: The stand is a gantry, and the silo is located in the space enclosed by the gantry.

7. The injection molding sleeve feeder according to claim 6, wherein: The material bin includes an upper material bin that is vertically swung and a lower material bin that is horizontally placed. The lower material bin also partially extends to the corresponding upper side of the flexible vibration plate; the flexible vibration plate is square in shape.

8. The injection molding sleeve feeder according to claim 1, wherein: The flip driver is a telescopic air cylinder or a telescopic hydraulic cylinder, the rotation driver is a rotary air cylinder or a rotary hydraulic cylinder, and the grasping component is a pneumatic finger.

9. The injection molding sleeve feeder according to claim 1, wherein: The upper end of the stepped shaft is provided with a chamfered structure.

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