Raw material feeding device

By designing a raw material feeding device with quantitative, anti-clogging, and feeding mechanisms, and utilizing components such as servo motors and vacuum pumps, the precision and continuity of material feeding in injection molding machines are achieved. This solves the problems of cumbersome feeding and difficulty in accurate material supply in existing technologies, thereby improving production efficiency.

CN223877407UActive Publication Date: 2026-02-06GUANGDONG HAIXING PLASTIC & RUBBER CO LTD
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Patent Information

Application Number
CN202520490856.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-02-06
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

In existing technologies, the material feeding process during injection molding is cumbersome and it is difficult to achieve precise material supply, resulting in low production efficiency.

Method used

A raw material feeding device was designed, comprising a quantitative mechanism, a driving mechanism, an anti-clogging mechanism, and a feeding mechanism. The device achieves precise adjustment of the material space by using a servo motor to drive a threaded rod and a bevel gear transmission structure, and utilizes a vacuum pump to create negative pressure feeding. Combined with capacitive level switch monitoring and scraper anti-clogging, the device ensures the accuracy and continuity of feeding.

Benefits of technology

It enables precise control of the feeding amount, prevents material accumulation and blockage, ensures the continuity and stability of feeding, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a raw material feeding device, which belongs to the technical field of injection molding machine feeding equipment, and comprises a feeding cylinder, a fixing frame, a quantifying mechanism, a driving mechanism, an anti-blocking mechanism and a feeding mechanism, a visual window is arranged on the outer side of the feeding cylinder, the inner wall of the fixing frame is fixedly connected to the outer wall of the feeding cylinder, the driving mechanism is arranged in the feeding cylinder, and the anti-blocking mechanism is arranged in the feeding cylinder. The quantifying mechanism is arranged in the feeding barrel, the output end of the top of the driving mechanism is connected with the bottom of the quantifying mechanism, the output end of the bottom of the driving mechanism is fixedly connected with an anti-blocking mechanism, the anti-blocking mechanism is arranged at the bottom in the feeding barrel, and the top of the feeding barrel is fixedly connected with a feeding mechanism; the bottom of the feeding mechanism extends to the top of the interior of the feeding barrel. The feeding mechanism, the anti-blocking mechanism, the driving mechanism and the quantifying mechanism are matched with one another, so that quantitative feeding and discharging in the feeding process of the injection molding machine are realized, and waste is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine feeding equipment technical field, concretely relates to raw material feeding device. BACKGROUND

[0002] Raw material feeding device is the auxiliary equipment for injection molding machine, and the main role is to automatically and efficiently convey plastic raw materials to the hopper of injection molding machine. It can improve production efficiency, reduce manual intervention, and ensure the continuity and stability of raw material conveying.

[0003] Through the retrieval Chinese patent literature announcement No. CN215589801U, an injection molding machine raw material automatic feeding device is disclosed, which relates to injection molding machine feeding equipment technical field, and its technical scheme points are that the feeding cylinder is provided with a discharge port below, a sealing cover is arranged on the discharge port, a feeding hose is fixedly installed on the top of the feeding cylinder, a vacuum pump is fixedly connected to the side of the top of the feeding cylinder away from the feeding hose through a connecting pipe, a filter screen is arranged in the inner cavity of the connecting pipe, a first driving part that drives the filter screen to rotate and lift in the vertical direction is arranged in the feeding cylinder, and the feeding device still has the following problems:

[0004] In the prior art, since most of the production workshops still use manual feeding during the injection molding process, the feeding process is very cumbersome, and it is difficult to accurately feed according to the single injection molding demand or the planned advance feeding demand during the feeding process.

[0005] Based on this, the utility model designs a raw material feeding device to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above shortcomings of the prior art, the utility model provides a raw material feeding device.

[0007] To achieve the above purposes, the utility model realizes the following technical schemes:

[0008] A raw material feeding device, comprising a feeding cylinder, a fixing frame, a quantitative mechanism, a driving mechanism, a anti-blocking mechanism and a feeding mechanism, a visible window is arranged on the outer side of the feeding cylinder, the inner wall of the fixing frame is fixedly connected to the outer wall of the feeding cylinder, the driving mechanism is arranged in the interior of the feeding cylinder, the quantitative mechanism is arranged in the interior of the feeding cylinder, the output end of the top of the driving mechanism is connected to the bottom of the quantitative mechanism, the output end of the bottom of the driving mechanism is connected with the anti-blocking mechanism, the anti-blocking mechanism is arranged in the interior bottom of the feeding cylinder, the top of the feeding cylinder is fixedly connected with the feeding mechanism, and the bottom of the feeding mechanism extends to the interior top of the feeding cylinder.

[0009] The driving mechanism comprises a motor box, a transmission box and a transmission column, the outer wall of the motor box is fixedly connected to the outer wall of the feeding cylinder, a servo motor is arranged in the motor box, the output end of the servo motor is rotatably extended to the inside of the feeding cylinder and is fixedly connected with an output shaft, the outer wall of the transmission box is fixedly connected to the inside of the feeding cylinder through a support column, the output end of the output shaft is rotatably extended to the inside of the transmission box, a bevel gear transmission structure is arranged in the transmission box, the output end of the output shaft is fixedly connected to one of the bevel gears in the bevel gear transmission structure, the bevel gear transmission structure is composed of two meshing bevel gears, both of the bevel gears are rotatably connected to the inner wall of the transmission box, and the output end of the output shaft is drivingly connected to the transmission column through the bevel gear transmission structure.

[0010] Further, the quantitative mechanism comprises a driving motor one, a threaded rod one, an internal thread ring one, a temporary storage hopper, a top plate, a limiting rod and a plugging assembly, the driving motor one is fixedly connected to the top of the outer side of the feeding cylinder, the output end of the driving motor one is rotatably extended to the inside of the feeding cylinder and is fixedly connected with the threaded rod one, the threaded rod one is externally threadedly connected with the internal thread ring one, the outer wall of the internal thread ring one is fixedly connected with the temporary storage hopper through a support rod, the inner wall of the feeding cylinder and located above the top opening of the temporary storage hopper is fixedly connected with the top plate, the outer wall of the temporary storage hopper is slidingly connected with the inner wall of the feeding cylinder, a plurality of limiting rods are fixedly connected to the bottom edge of the top plate, the plurality of limiting rods are slidingly passed through the outer side edge of the temporary storage hopper, and the bottom of the plugging assembly is fixedly connected to the top of the transmission column.

[0011] Further, the plugging assembly comprises a threaded rod two, the bottom of the threaded rod two is fixedly connected to the top of the transmission column, the threaded rod two is externally threadedly connected with an internal thread ring two, the outer wall of the internal thread ring two is fixedly connected with a connecting stake through a support rod, the plurality of limiting rods are slidingly passed through the support rods on the connecting stake, the top of the connecting stake is fixedly connected with a convex top cover, and the convex top cover can be arranged on the bottom opening of the temporary storage hopper.

[0012] Further, the outer diameter of the convex top cover is greater than the inner diameter of the bottom opening of the temporary storage hopper, the top of the convex top cover is convex and gradually decreases from the center height.

[0013] Further, the anti-blocking mechanism comprises a follower ring, a telescopic assembly and a scraping strip, the inner sides of the two follower rings are fixedly connected to the bottom outer wall of the transmission column, the outer wall of each follower ring is fixedly connected with a plurality of telescopic assemblies, one end of the telescopic assembly close to the inner wall of the feeding cylinder is fixedly connected with a scraping strip, the scraping strip close to the inner wall of the feeding cylinder is in sliding contact with the bottom inner wall of the feeding cylinder, and the shapes of the sides of the plurality of scraping strips away from each other are adapted to the shape of the bottom inner wall of the feeding cylinder.

[0014] Further, the telescopic assembly comprises a fixed column and a sleeve, one end of the fixed column is fixedly connected to the outer wall of the follow-up ring, the other end of the fixed column is inserted into the inside of one end of the sleeve and is slidably connected, the other end of the sleeve is hingedly connected with a rotating stake, one end of the spring is fixedly connected to the other end of the fixed column, the other end of the spring is fixedly connected to the inner wall of the other end of the sleeve, and the end of the rotating stake close to the inner wall of the feeding cylinder is fixedly connected to the outer wall of the scraping strip.

[0015] Further, the feeding mechanism comprises a feeding cylinder, a vacuum pump, a feeding pipe, a filter plate, a discharging pipe, a capacitive material level switch and a flat warehouse assembly, the bottom of the feeding cylinder is fixedly connected to the top outside of the feeding cylinder, the outer wall of one side of the feeding cylinder is fixedly connected with the feeding pipe, the inner wall of the feeding cylinder is fixedly connected with the filter plate, the filter plate is located above the feeding pipe and the feeding cylinder, the top of the feeding cylinder is fixedly connected with the vacuum pump, the bottom of the feeding cylinder is fixedly connected with the discharging pipe, the bottom of the discharging pipe extends to the inside of the feeding cylinder and penetrates through the top plate, and the bottom of the discharging pipe is parallel to the bottom side of the top plate, the outer wall of the discharging pipe is provided with the capacitive material level switch, and the top of the top plate is fixedly connected with the flat warehouse assembly.

[0016] Further, the flat warehouse assembly comprises a second driving motor, a driving gear, a gear ring and a distribution disc, the second driving motor is fixedly connected to the top of the top plate, the output end of the second driving motor is vertically upward and fixedly connected with the driving gear, the middle part of the top of the top plate is rotatably connected with the gear ring through a bearing, the gear ring is rotatably sleeved on the outside of the threaded rod one, the top outside of the gear ring is engaged with the outside of the driving gear, and the bottom of the gear ring is rotatably connected with the distribution disc after penetrating through the top plate.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1、The utility model discloses a motor drives the rotation of threaded rod one and the rotation of threaded rod two in the motor box of servo motor, controls the vertical motion of the temporary storage hopper and the convex top cover, realizes the accurate adjustment of the material space volume between the temporary storage hopper and the top plate, ensures the controllability of the feeding amount, and then the vacuum pump forms the negative pressure in the feeding cylinder, and the material in the storage bin is sucked, and the capacitive material level switch is used to monitor the material position, ensures the feeding precision, and when discharging is needed, the servo motor in the motor box is reversed to operate, so that the convex top cover is separated from the bottom of the temporary storage hopper, and the discharging operation is completed.

[0019] 2. The utility model discloses a servo motor in the motor box is reversed operation, make the convex top bottom cover downward movement and make the transmission column drive the follow -up ring and telescopic component rotate with it to drive the scraping strip rotate in the inner wall of the feeding cylinder, and the scraping strip slides on the outer wall of fixed column through the sleeve, adapts the shape of the arc inner wall of the bottom of feeding cylinder, and utilizes the elastic potential energy of spring to ensure that the scraping strip is always closely attached to the inner wall, realizes the complete scraping of the material adhered to the inner wall of feeding cylinder in the discharging process, effectively prevents the material from piling up and blocking the discharge port. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduced. Obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0021] Figure 1 It is the perspective view of the raw material feeding device of the utility model;

[0022] Figure 2 It is the plan view of the raw material feeding device of the utility model;

[0023] Figure 3 It is the structure schematic view of the ration mechanism of the raw material feeding device of the utility model;

[0024] Figure 4 It is the structure schematic view of the anti-blocking mechanism of the raw material feeding device of the utility model;

[0025] Figure 5 It is Figure 4 The enlarged view of A in the middle.

[0026] The reference numerals in the drawing respectively represent:

[0027] 1, feeding cylinder;2, fixed frame;3, ration mechanism;301, drive motor one;302, threaded rod one;303, internal thread ring one;304, temporary storage hopper;305, top plate;306, threaded rod two;307, internal thread ring two;308, connecting pile;309, convex top bottom cover;310, limit rod;4, driving mechanism;401, motor box;402, transmission box;403, transmission column;5, anti-blocking mechanism;501, follow-up ring;502, fixed column;503, sleeve;504, spring;505, rotating pile;506, scraping strip;6, feeding mechanism;601, feeding cylinder;602, vacuum pump;603, feeding pipe;604, filter plate;605, discharge pipe;606, capacitive level switch;607, drive motor two;608, drive gear;609, gear ring;610, distribution disc. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] In the following description, "left", "right", "front", "rear", "upper", "lower" are oriented in the perspective of the plan view.

[0030] Embodiment one: in some embodiments, referring to the drawings of the specification Figures 1-5 A raw material feeding device, including a feeding cylinder 1, further including a fixing frame 2, a quantitative mechanism 3, a driving mechanism 4, a anti-blocking mechanism 5 and a feeding mechanism 6, the outer side of the feeding cylinder 1 is provided with a visible window, the inner wall of the fixing frame 2 is fixedly connected to the outer wall of the feeding cylinder 1, the driving mechanism 4 is arranged inside the feeding cylinder 1, the quantitative mechanism 3 is arranged inside the feeding cylinder 1, the output end of the top of the driving mechanism 4 is connected to the bottom of the quantitative mechanism 3, the output end of the bottom of the driving mechanism 4 is fixedly connected with the anti-blocking mechanism 5, the anti-blocking mechanism 5 is arranged at the bottom inside the feeding cylinder 1, the top of the feeding cylinder 1 is fixedly connected with the feeding mechanism 6, and the bottom of the feeding mechanism 6 extends to the top inside the feeding cylinder 1.

[0031] The driving mechanism 4 includes a motor box 401, a transmission box 402 and a transmission column 403, the outer wall of the motor box 401 is fixedly connected to the outer wall of the feeding cylinder 1, a servo motor is arranged inside the motor box 401, the output end of the servo motor is rotatably extended to the inside of the feeding cylinder 1 and is fixedly connected with an output shaft, the outer wall of the transmission box 402 is fixedly connected to the inside of the feeding cylinder 1 through a support column, the output end of the output shaft is rotatably extended to the inside of the transmission box 402, a bevel gear transmission structure is arranged inside the transmission box 402, the output end of the output shaft is fixedly connected to one of the bevel gears in the bevel gear transmission structure, the bevel gear transmission structure is composed of two meshing bevel gears, both of the bevel gears are rotatably connected to the inner wall of the transmission box 402, and the output end of the output shaft is drivingly connected to the transmission column 403 through the bevel gear transmission structure. The transmission column 403 is rotatably arranged vertically in the inside of the transmission box 402, and the upper and lower ends of the transmission column 403 extend to the outside of the upper and lower sides of the transmission box 402 respectively.

[0032] When the material needs to be quantitatively fed, the space for temporarily storing the material in the feeding cylinder 1 is adjusted by opening the quantitative mechanism 3 and the driving mechanism 4, and then the feeding mechanism 6 is opened for feeding. When the material reaches a certain amount, the feeding mechanism 6 is closed, and the driving mechanism 4 is operated in reverse, so that the material in the feeding cylinder 1 after being quantitatively fed can be discharged from the bottom opening of the feeding cylinder 1, and at the same time, the driving mechanism 4 drives the anti-blocking mechanism 5 to operate, so that the granular material adhering to the inner wall of the bottom of the feeding cylinder 1 is scraped, thereby preventing the granular material from adhering and accumulating at the bottom of the feeding cylinder 1 and causing the problem of discharge blockage. When the driving mechanism 4 operates, the bevel gear transmission structure in the transmission box 402 is driven to operate by the servo motor in the motor box 401, thereby driving the transmission column 403 to rotate, and the upper and lower ends of the transmission column 403 extend out of the motor box 401, thereby achieving the purpose of preventing blockage while discharging.

[0033] In some embodiments, the quantitative mechanism 3 includes a driving motor 301, a threaded rod 302, an internal threaded ring 303, a temporary storage hopper 304, a top plate 305, a plurality of limiting rods 310, and a blocking assembly. The driving motor 301 is fixedly connected to the top of the outer side of the feeding cylinder 1. The output end of the driving motor 301 extends into the interior of the feeding cylinder 1 and is fixedly connected with the threaded rod 302. The threaded rod 302 is externally threaded with the internal threaded ring 303. The outer wall of the internal threaded ring 303 is fixedly connected with the temporary storage hopper 304 through a support rod. The inner wall of the feeding cylinder 1 and above the top opening of the temporary storage hopper 304 is fixedly connected with the top plate 305. The outer wall of the temporary storage hopper 304 is slidingly connected with the inner wall of the feeding cylinder 1. The bottom edge of the top plate 305 is fixedly connected with the plurality of limiting rods 310. The plurality of limiting rods 310 slidingly pass through the outer side edge of the temporary storage hopper 304. The bottom of the blocking assembly is fixedly connected to the top of the transmission column 403.

[0034] The blocking assembly includes a threaded rod 306, the bottom of which is fixedly connected to the top of the transmission column 403, and the top of which is rotatably connected to the bottom of the threaded rod 302. The threaded rod 306 is externally threaded with an internal threaded ring 307. The outer wall of the internal threaded ring 307 is fixedly connected with a connecting stake 308 through a support rod. The plurality of limiting rods 310 slidingly pass through the support rods on the connecting stake 308. The top of the connecting stake 308 is fixedly connected with a convex top cover 309, which can be placed on the bottom opening of the temporary storage hopper 304. The outer diameter of the convex top cover 309 is greater than the inner diameter of the bottom opening of the temporary storage hopper 304, and the top of the convex top cover 309 is convex and gradually decreases in height from the center.

[0035] When the injection granules need to be loaded, the servo motor in the motor box 401 is turned on to drive the driving motor 301 to rotate the threaded rod 302. When the threaded rod 302 rotates, the temporary storage hopper 304 can only slide up and down along the limiting rod 310, so that the inner threaded ring 303 can only move vertically along the threaded rod axis, thereby driving the temporary storage hopper 304 to adjust the vertical position inside the loading cylinder 1, so as to change the distance between the temporary storage cylinder and the top plate 305, and facilitate the control of the volume of the temporary storage material space. At the same time, the servo motor in the motor box 401 operates, and the bevel gear transmission structure in the transmission box 402 drives the threaded rod 306 to rotate. When the threaded rod 306 rotates, the inner threaded ring 307 only moves vertically due to the limiting effect of the connecting pile 308 and the limiting rod 310, so that the vertical movement of the inner threaded ring 307 drives the convex top cover 309 to move upward and always fit the bottom of the temporary storage hopper 304, so that the bottom opening of the temporary storage hopper 304 is blocked. At this time, the volume of the space between the temporary storage hopper 304 and the top plate 305 is controllable, so that the amount of this time can be controlled. When the material needs to be discharged, the servo motor in the motor box 401 is operated in reverse to drive the entire driving mechanism 4 to operate in reverse, thereby driving the threaded rod 306 to rotate in reverse, so that the convex top cover 309 is separated from the bottom of the temporary storage hopper 304, and the material between the temporary storage hopper 304 and the top plate 305 enters the bottom of the loading cylinder 1 for discharge.

[0036] In some embodiments, the anti-blocking mechanism 5 includes a follower ring 501, a telescopic assembly, and a scraper 506. The inner sides of the two follower rings 501 are fixedly connected to the bottom outer wall of the transmission column 403. The outer wall of each follower ring 501 is fixedly connected with a plurality of telescopic assemblies. One end of the telescopic assembly close to the inner wall of the loading cylinder 1 is fixedly connected with the scraper 506. The scraper 506 close to the inner wall of one side of the loading cylinder 1 slides in contact with the bottom inner wall of the loading cylinder 1. The sides of the plurality of scrapers 506 away from each other are shaped to match the shape of the bottom inner wall of the loading cylinder 1.

[0037] The telescopic assembly includes a fixed column 502 and a sleeve 503. One end of the fixed column 502 is fixedly connected to the outer wall of the follower ring 501. The other end of the fixed column 502 is inserted into the inner side of one end of the sleeve 503 for sliding connection. The other end of the sleeve 503 is hingedly connected with a rotating pile 505. One end of the spring 504 is fixedly connected to the other end of the fixed column 502. The other end of the spring 504 is fixedly connected to the inner wall of the other end of the sleeve 503. The end of the rotating pile 505 close to the loading cylinder 1 is fixedly connected to the outer wall of the scraper 506.

[0038] When the material is discharged, that is, the convex top cover 309 moves downward, the servo motor inside the motor box 401 reverses rotation at this time, so that the servo ring 501 and the transmission column 403 are rotated through the bevel gear transmission structure, the rotation of the servo ring 501 drives the telescopic assembly to rotate, thereby synchronously driving the scraper 506 to move; When the scraper 506 moves, because the bottom inner wall of the feeding cylinder 1 is arc-shaped, the scraper 506 rotates in the inner wall of the feeding cylinder 1 to drive the sleeve 503 to slide on the outer wall of the fixed column 502 to adapt to the shape of the bottom inner wall of the feeding cylinder 1, and through the elastic potential accumulation and release of the spring 504, the scraper 506 can always adhere to the inner wall of the feeding cylinder 1, thereby completely scraping off the material adhering to the inner wall of the feeding cylinder 1 during discharging, preventing omission.

[0039] In some embodiments, the feeding mechanism 6 includes a feeding cylinder 601, a vacuum pump 602, a feeding pipe 603, a filter plate 604, a discharge pipe 605, a capacitive level switch 606, and a flat bin assembly, the bottom of the feeding cylinder 601 is fixedly connected to the top outside of the feeding cylinder 1, the outer wall of one side of the feeding cylinder 601 is fixedly connected with the feeding pipe 603, the inner wall of the top of the feeding cylinder 601 is fixedly connected with the filter plate 604, the filter plate 604 is located above the feeding pipe 603 and the feeding cylinder 601, the top of the feeding cylinder 601 is fixedly connected with the vacuum pump 602, the bottom of the feeding cylinder 601 is fixedly connected with the discharge pipe 605, the bottom of the discharge pipe 605 extends to the inside of the feeding cylinder 1 and penetrates through the top plate 305, and the bottom of the discharge pipe 605 is parallel to the bottom side of the top plate 305, the outer wall of the discharge pipe 605 is provided with the capacitive level switch 606, and the top of the top plate 305 is fixedly connected with the flat bin assembly.

[0040] The flat bin assembly includes a second driving motor 607, a driving gear 608, a gear ring 609, and a distribution disc 610, the second driving motor 607 is fixedly connected to the top of the top plate 305, the output end of the second driving motor 607 is vertically upward and fixedly connected with the driving gear 608, the top of the top plate 305 is rotatably connected with the gear ring 609 through a bearing, the gear ring 609 is rotatably sleeved on the outside of the threaded rod one 302, the top outside of the gear ring 609 is engaged with the outside of the driving gear 608, and the bottom of the gear ring 609 is rotatably connected with the distribution disc 610 after penetrating through the top plate 305, and the bottom of the distribution disc 610 is provided with a stirring paddle. The stirring paddle is located in the top space inside the temporary storage hopper 304, and the rotation of the stirring paddle does not contact the support rod on the inner wall of the temporary storage hopper 304.

[0041] In the feeding process, the inside of the feeding cylinder 601 is under negative pressure by opening the vacuum pump 602, so that the material in the storage bin connected with the outer end of the feeding pipe 603 is sucked into the inside of the feeding cylinder 601, the filter plate 604 is used to prevent the granular material from entering the inside of the vacuum pump 602 to cause damage, and whether the material between the temporary storage hopper 304 and the top plate 305 reaches the preset position is judged by measuring the change of the capacitance of the capacitive level switch 606 on the discharge pipe 605; when reaching the preset position, i.e. the material is flush with the bottom of the top plate 305, the capacitive level switch 606 on the discharge pipe 605 is closed, so that the internal passage of the discharge pipe 605 is closed, and in the discharging process of the discharge pipe 605, the driving motor two 607 is opened, the driving motor two 607 operates to drive the driving gear 608 to rotate, so as to drive the gear ring 609 to rotate, the rotation of the gear ring 609 drives the distribution disc 610 to rotate, so as to disperse the material output by the discharge pipe 605 to each part inside the temporary storage hopper 304, and the material is evenly distributed by the stirring paddle at the bottom of the distribution disc 610, so as to ensure the accuracy of the capacitive level switch 606, and after the material is completely discharged, the convex top cover 309 contacts and blocks the opening at the bottom of the temporary storage hopper 304 again, and the feeding operation is performed.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A raw material feeding device comprising a feeding cylinder (1), characterized in that: It also includes fixed frame (2), quantitative mechanism (3), drive mechanism (4), anti-blocking mechanism (5) and feeding mechanism (6), the outer side of the feeding cylinder (1) is provided with a viewing window, the inner wall of the fixed frame (2) is fixedly connected to the outer wall of the feeding cylinder (1), the drive mechanism (4) is arranged in the inside of the feeding cylinder (1), the quantitative mechanism (3) is arranged in the inside of the feeding cylinder (1), the output end of the top of the drive mechanism (4) is connected with the bottom of the quantitative mechanism (3), the output end of the bottom of the drive mechanism (4) is connected with the anti-blocking mechanism (5), the anti-blocking mechanism (5) is arranged in the inside bottom of the feeding cylinder (1), the top of the feeding cylinder (1) is fixedly connected with the feeding mechanism (6), the bottom of the feeding mechanism (6) extends to the inside top of the feeding cylinder (1); The drive mechanism (4) includes motor box (401), transmission box (402) and transmission column (403), the outer wall of the motor box (401) is fixedly connected to the outer wall of the feeding cylinder (1), a servo motor is arranged in the inside of the motor box (401), the output end of the servo motor is rotatably extended to the inside of the feeding cylinder (1) and fixedly connected with an output shaft, the outer wall of the transmission box (402) is fixedly connected to the inside of the feeding cylinder (1) through a support column, the output end of the output shaft is rotatably extended to the inside of the transmission box (402), a bevel gear transmission structure is arranged in the inside of the transmission box (402), the output end of the output shaft is fixedly connected to one of the bevel gears in the bevel gear transmission structure, the bevel gear transmission structure is composed of two meshing bevel gears, both of the bevel gears are rotatably connected with the inner wall of the transmission box (402), and the output end of the output shaft is in transmission connection with the transmission column (403) through the bevel gear transmission structure.

2. The raw material feeding device according to claim 1, characterized by The quantitative mechanism (3) includes drive motor one (301), threaded rod one (302), inner thread ring one (303), temporary storage hopper (304), top plate (305), limiting rod (310) and blocking assembly, the drive motor one (301) is fixedly connected to the top of the outer side of the feeding cylinder (1), the output end of the drive motor one (301) is rotatably extended to the inside of the feeding cylinder (1) and fixedly connected with the threaded rod one (302), the outer side of the threaded rod one (302) is threadedly connected with the inner thread ring one (303), the outer wall of the inner thread ring one (303) is fixedly connected with the temporary storage hopper (304) through a support rod, the inner wall of the feeding cylinder (1) and located above the top opening of the temporary storage hopper (304) is fixedly connected with the top plate (305), the outer wall of the temporary storage hopper (304) is slidingly connected with the inner wall of the feeding cylinder (1), a plurality of limiting rods (310) are fixedly connected to the bottom edge of the top plate (305), the plurality of limiting rods (310) slide through the outer side edge of the temporary storage hopper (304), and the bottom of the blocking assembly is fixedly connected to the top of the transmission column (403).

3. The raw material feeding device according to claim 2, characterized by The plugging assembly includes a second threaded rod (306), the bottom of the second threaded rod (306) is fixedly connected to the top of the transmission column (403), a second internally threaded ring (307) is threadedly connected to the outside of the second threaded rod (306), the outer wall of the second internally threaded ring (307) is fixedly connected with a connecting pile (308) through a support rod, a plurality of limiting rods (310) slide through the support rod on the connecting pile (308), the top of the connecting pile (308) is fixedly connected with a convex top cover (309), and the convex top cover (309) can be arranged on the bottom opening of the temporary storage hopper (304).

4. The raw material feeding device according to claim 3, characterized by The outer diameter of the convex top cover (309) is greater than the inner diameter of the bottom opening of the temporary storage hopper (304), and the top of the convex top cover (309) is convex and gradually decreases from the center height.

5. The raw material feeding device according to claim 1, wherein The anti-blocking mechanism (5) includes a follower ring (501), an extension assembly and a scraping strip (506), the inner sides of the two follower rings (501) are fixedly connected to the bottom outer wall of the transmission column (403), the outer wall of each follower ring (501) is fixedly connected with a plurality of extension assemblies, one end of the extension assembly close to the inner wall of the feeding cylinder (1) is fixedly connected with the scraping strip (506), the side inner wall of the scraping strip (506) close to the feeding cylinder (1) is in sliding contact with the bottom inner wall of the feeding cylinder (1), and the shapes of the sides of the plurality of scraping strips (506) away from each other are matched with the shape of the bottom inner wall of the feeding cylinder (1).

6. The raw material feeding device according to claim 5, wherein The extension assembly includes a fixed column (502) and a sleeve (503), one end of the fixed column (502) is fixedly connected to the outer wall of the follower ring (501), the other end of the fixed column (502) is inserted into the inside of one end of the sleeve (503) and is connected in a sliding manner, the other end of the sleeve (503) is hingedly connected with a rotating pile (505), one end of a spring (504) is fixedly connected to the other end of the fixed column (502), the other end of the spring (504) is fixedly connected to the inner wall of the other end of the sleeve (503), and one end of the rotating pile (505) close to the feeding cylinder (1) is fixedly connected to the outer wall of the scraping strip (506).

7. The raw material feeding device according to claim 2, wherein The feeding mechanism (6) includes a feeding cylinder (601), a vacuum pump (602), a feeding pipe (603), a filter plate (604), a discharge pipe (605), a capacitive level switch (606) and a flat warehouse assembly, the bottom of the feeding cylinder (601) is fixedly connected to the top outside of the feeding cylinder (1), the side outer wall of the feeding cylinder (601) is fixedly connected with the feeding pipe (603), the inner wall top of the feeding cylinder (601) is fixedly connected with the filter plate (604), the filter plate (604) is located above the communication position of the feeding pipe (603) and the feeding cylinder (601), the top of the feeding cylinder (601) is fixedly connected with the vacuum pump (602), the bottom of the feeding cylinder (601) is fixedly connected with the discharge pipe (605), the bottom of the discharge pipe (605) extends to the inside of the feeding cylinder (1) and penetrates through the top plate (305), the bottom of the discharge pipe (605) is parallel to the bottom side of the top plate (305), the outer wall of the discharge pipe (605) is provided with the capacitive level switch (606), and the top of the top plate (305) is fixedly connected with the flat warehouse assembly.

8. The raw material feeding device according to claim 7, characterized by The flat warehouse assembly includes drive motor two (607), drive gear (608), gear ring (609) and distribution disc (610), drive motor two (607) is fixedly connected at the top of the top plate (305), the output end of drive motor two (607) is vertically upwards and is fixedly connected with drive gear (608), the top middle part of the top plate (305) is rotatably connected with gear ring (609) through a bearing, the gear ring (609) is rotatably sleeved on the outside of the threaded rod one (302), the top outside of the gear ring (609) is engaged with the outside of the drive gear (608), and the bottom of the gear ring (609) is rotatably penetrated through the top plate (305) and is fixedly connected with the distribution disc (610).

Citation Information

Patent Citations

  • Automatic raw material feeding device for injection molding machine

    CN215589801U