Feeding mechanism of injection molding machine

Abstract

The utility model discloses a feeding mechanism of an injection molding machine, which relates to the field of injection molding equipment and comprises a feeding cylinder, a mounting seat and a feeding hopper, the mounting seat is detachably assembled at the top of the feeding cylinder, the feeding hopper is fixedly mounted on the mounting seat and is communicated with the feeding cylinder through the mounting seat, the feeding hopper comprises a blanking cylinder and a cylinder cover, and the blanking cylinder is fixedly mounted on the mounting seat. The discharging barrel and the barrel cover are assembled through a lock catch, the discharging barrel is of a conical structure, an anti-blocking mechanism is arranged in the discharging barrel, and a driving mechanism is arranged at the top of the barrel cover. According to the utility model, the feed hopper is designed to be a combination of the blanking barrel and the barrel cover, the anti-blocking mechanism is additionally arranged in the blanking barrel, the driving mechanism is additionally arranged at the top of the barrel cover, and the driving mechanism is utilized to drive the anti-blocking mechanism to operate in the blanking barrel, so that materials accumulated in the blanking barrel are stirred and spirally conveyed; and the situation of material accumulation and blockage is avoided, the materials can enter the feeding cylinder in order and quantitatively, and normal operation of injection molding equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding equipment field especially relates to a injection molding machine feeding mechanism. BACKGROUND

[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment of thermoplastic or thermosetting plastic and is made into various shapes of plastic products by plastic molding die. It is divided into vertical, horizontal, all-electric, injection molding machine can heat plastic, melt plastic and apply high pressure to make it fill the mold cavity, injection molding machine usually by feeding mechanism, hydraulic transmission system, electrical control system, heating system, injection system and clamping system, and the feeding mechanism is the necessary system of injection molding machine as the feeding structure of injection molding.

[0003] The existing feeding mechanism generally adopts the way of hopper, and the plastic particles are filled in the hopper by manual or pneumatic method, and the material in the hopper falls into the barrel by gravity and then the feeding process is completed by using screw to push the material.

[0004] The existing hopper is generally conical, and a large amount of material accumulates at the connection between the hopper and the barrel when entering the barrel, which is easy to cause accumulation and blockage under the action force between the materials, so that the material cannot enter the barrel smoothly to supplement the material, thereby affecting the processing of injection molding equipment. INVENTION CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an injection molding machine feeding mechanism to solve the problems in the above background art.

[0006] The utility model provides the following technical scheme: a injection molding machine feeding mechanism, including feeding cylinder, mounting seat and hopper, the top of feeding cylinder can be detachably assembled with mounting seat, and the hopper is fixedly installed on the mounting seat and is communicated with the feeding cylinder through the mounting seat, the hopper includes the hopper and cylinder cover, and the hopper and cylinder cover are assembled through the lock catch, the hopper is conical structure and is internally provided with anti-blocking mechanism, the top of cylinder cover is provided with driving mechanism, when the cylinder cover is assembled with the hopper, the driving mechanism is connected with the anti-blocking mechanism, so that the driving mechanism drives the anti-blocking mechanism to run and quantitatively transports the material in the hopper.

[0007] Preferably, the anti-blocking mechanism includes a bracket fixedly installed at the top end of the hopper, a connecting structure rotatably installed at the center position of the top surface, a transmission shaft fixedly installed at the bottom surface of the connecting mechanism, and an anti-blocking structure fixedly installed on the surface of the transmission shaft, the bracket is a cross-shaped structure, the connecting structure is rotatably installed at the intersection of the cross-shaped structure, and the top of the transmission shaft passes through the connecting structure.

[0008] Preferably, the driving mechanism comprises a speed reducer fixedly installed at the center of the top surface of the barrel cover, a clamping block fixedly installed on the output shaft of the speed reducer, and a clamping groove opened on both sides of the clamping block, and the output shaft of the speed reducer penetrates through the barrel cover and is rotationally connected with the barrel cover.

[0009] Preferably, the connecting structure comprises a clamping seat rotationally installed at the center of the support, recesses are opened on both sides of the clamping seat, and a limiting plate is hingedly connected in each of the two recesses, and a protruding block is arranged on the top of each of the two limiting plates, and the bottoms of the two limiting plates are connected with a spring.

[0010] Preferably, the anti-blocking structure comprises a stirring rod fixedly installed on the top of the transmission shaft and a spiral blade fixedly installed on the bottom of the transmission shaft, wherein the stirring rod is located in the conical structure of the discharging barrel, and the spiral blade is located in the mounting seat.

[0011] Preferably, the clamping seat and the clamping block are in a cylindrical structure, and a socket matched with the clamping block is arranged on the top of the clamping seat, and the protruding block is matched with the clamping groove.

[0012] Preferably, screws are threadedly connected to the two sides of the discharging barrel, and one end of each screw abuts against the bottom of the limiting plate.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a feeding hopper is designed as the combination of discharging barrel and barrel cover, is additionally provided with an anti-blocking mechanism in the inside of the discharging barrel, and additionally provides a driving mechanism on the top of the barrel cover, utilizes the driving mechanism to drive the anti-blocking mechanism to run in the inside of the discharging barrel, stirs and spirally convey the material accumulated in the inside of the discharging barrel, avoids the material accumulation and the jam situation, and can make the material enter the feeding barrel in order and quantitatively, guarantees the normal operation of injection molding equipment.

[0015] 2、The utility model discloses a feeding hopper is designed as the combination of discharging barrel and barrel cover, is additionally provided with an anti-blocking mechanism in the inside of the discharging barrel, and additionally provides a driving mechanism on the top of the barrel cover, utilizes the driving mechanism to drive the anti-blocking mechanism to run in the inside of the discharging barrel, stirs and spirally convey the material accumulated in the inside of the discharging barrel, avoids the material accumulation and the jam situation, and can make the material enter the feeding barrel in order and quantitatively, guarantees the normal operation of injection molding equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model.

[0017] Figure 2 It is the feeding hopper structure schematic diagram of the utility model.

[0018] Figure 3 It is the section structure schematic diagram of the utility model.

[0019] Figure 4 It is the anti-blocking mechanism structure schematic view of the utility model.

[0020] Figure 5 It is the connection structure schematic view of the utility model.

[0021] Figure 6 It is the driving mechanism structure schematic view of the utility model.

[0022] The figure mark is: 1, feed cylinder;2, mounting seat;3, feed hopper;31, discharge cylinder;32, cylinder cover;33, lock catch;4, anti-blocking mechanism;41, support;42, connection structure;421, clamping seat;422, recess;423, limiting plate;424, protruding block;425, spring;43, transmission shaft;44, anti-blocking structure;441, stirring rod;442, spiral blade;5, driving mechanism;51, speed reducer;52, clamping block;53, clamping groove. DETAILED DESCRIPTION

[0023] The advantages and features of the utility model will be more easily understood by the person skilled in the art in combination with the preferred embodiments of the utility model described below, so that the protection scope of the utility model can be more clearly and definitely defined.

[0024] The utility model provides a kind of injection molding machine feeding mechanism, as shown in Figures 1-6 The top of feed cylinder 1 is detachably assembled with mounting seat 2, and feed hopper 3 is fixedly installed on mounting seat 2 and is communicated with feed cylinder 1 through mounting seat 2, feed hopper 3 includes discharge cylinder 31 and cylinder cover 32, discharge cylinder 31 and cylinder cover 32 are assembled by lock catch 33, discharge cylinder 31 is conical structure and is internally provided with anti-blocking mechanism 4, the top of cylinder cover 32 is provided with driving mechanism 5, when cylinder cover 32 is assembled with discharge cylinder 31, driving mechanism 5 is clamped with anti-blocking mechanism 4, so that driving mechanism 5 drives anti-blocking mechanism 4 to run and quantitatively transports the material in feed hopper 3.

[0025] The feed hopper 3 is designed as the combination of discharge cylinder 31 and cylinder cover 32, the anti-blocking mechanism 4 is additionally provided in the inside of discharge cylinder 31, and the driving mechanism 5 is additionally provided on the top of cylinder cover 32, the anti-blocking mechanism 4 is driven to run in the inside of discharge cylinder 31 by driving mechanism 5, the material accumulated in discharge cylinder 31 is stirred and spirally transported, the material accumulation and blockage are avoided, and the material can be sequentially and quantitatively entered into feed cylinder 1, so that the normal operation of injection molding equipment is ensured.

[0026] Further, the anti-blocking mechanism 4 comprises a support 41 fixedly installed at the top end inside the feeding cylinder 31, an adapter structure 42 rotatably installed at the center of the top surface, a transmission shaft 43 fixedly installed at the bottom surface of the adapter structure, and an anti-blocking structure 44 fixedly installed on the surface of the transmission shaft 43. The support 41 is a cross-shaped structure, the adapter structure 42 is rotatably installed at the intersection of the cross-shaped structure, and the top of the transmission shaft 43 penetrates the adapter structure 42.

[0027] Further, the driving mechanism 5 comprises a speed reducer 51 fixedly installed at the center of the top surface of the cylinder cover 32, a clamping block 52 fixedly installed on the output shaft of the speed reducer 51, and clamping grooves 53 opened on both sides of the clamping block 52. The output shaft of the speed reducer 51 penetrates the cylinder cover 32 and is rotatably connected with the cylinder cover 32.

[0028] The adapter structure 42 of the anti-blocking mechanism 4 cooperates with the clamping block 52 of the driving mechanism 5. After the feeding cylinder 31 and the cylinder cover 32 are assembled, the clamping block 52 is automatically clamped inside the adapter structure 42, the automatic assembly of the anti-blocking mechanism 4 and the driving mechanism 5 is completed, the feeding cylinder 31 of the driving mechanism 5 is set, the space occupied by the anti-blocking mechanism is greatly reduced, and the automatic assembly of the anti-blocking mechanism 4 and the driving mechanism 5 is convenient and fast.

[0029] Further, the adapter structure 42 comprises a clamping seat 421 rotatably installed at the center of the support 41. The clamping seat 421 is provided with recesses 422 on both sides, and limit plates 423 are hingedly connected in the two recesses 422. The top of each limit plate 423 is provided with a protruding block 424, and the bottom of each limit plate 423 is connected with a spring 425. The clamping seat 421 and the clamping block 52 are both cylindrical structures, and the top of the clamping seat 421 is provided with a plug hole matched with the clamping block 52. The protruding block 424 is matched with the clamping groove 53.

[0030] During assembly, the cylinder cover 32 is buckled on the top of the feeding cylinder 31 and is fixed by the lock buckle 33. At this time, the clamping block 52 is gradually inserted into the clamping seat 421 and presses the two limit plates 423. Under the action of the hinge, the top of the two limit plates 423 moves outward, so that the clamping block 52 smoothly enters the clamping seat 421. When the clamping block 52 completely enters the clamping seat 421, the protruding block 424 is embedded in the clamping groove 53 under the action of the spring 425. At this time, the two limit plates 423 are reset, and the adapter assembly of the driving mechanism 5 and the anti-blocking mechanism 4 is completed.

[0031] Further, the anti-blocking structure 44 comprises a stirring rod 441 fixedly installed on the top of the transmission shaft 43 and a spiral blade 442 fixedly installed on the bottom of the transmission shaft 43, wherein the stirring rod 441 is located in the conical structure of the discharging cylinder 31, and the spiral blade 442 is located in the mounting base 2; the running anti-blocking mechanism 4 is stirred by the stirring rod 441 to avoid the butt-joint blocking of the material flow, and meanwhile, the spiral blade 442 rotates to spirally convey the material flow in the bottom of the discharging cylinder 31, i.e. the inside of the mounting base 2, so as to not only prevent the blocking, but also realize the quantitative conveying of the uniformly rotating spiral blade 442.

[0032] Further, the screw rod 6 is threadedly connected to the two sides of the discharging cylinder 31, and one end of the screw rod 6 abuts against the bottom of the limiting plate 423; when the cylinder cover 32 is disassembled, the screw rod 6 is screwed to feed into the inside of the discharging cylinder 31, so that the end of the screw rod 6 abuts against the bottom of the limiting plate 423, the top of the limiting plate 423 is moved outward again until the protruding block 424 is disengaged from the clamping groove 53, and then the cylinder cover 32 and the driving mechanism 5 thereon can be easily taken down, thereby saving time and effort.

[0033] It should be noted that: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0034] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments, but any equivalent modification or change made by those skilled in the art according to the disclosed content of the present application shall be included in the protection scope recorded in the claims.

Claims

1. A feeding mechanism for an injection molding machine comprising a feeding cylinder (1), a mounting seat (2) and a hopper (3), characterized in that: The top of the feeding cylinder (1) is detachably assembled with a mounting seat (2), and a feeding hopper (3) is fixedly installed on the mounting seat (2) and communicates with the feeding cylinder (1) through the mounting seat (2), the feeding hopper (3) comprises a discharging cylinder (31) and a cylinder cover (32), the discharging cylinder (31) is of a conical structure and internally provided with an anti-blocking mechanism (4), the top of the cylinder cover (32) is provided with a driving mechanism (5), when the cylinder cover (32) is assembled with the discharging cylinder (31), the driving mechanism (5) is clamped with the anti-blocking mechanism (4), so that the driving mechanism (5) drives the anti-blocking mechanism (4) to operate and quantitatively convey the materials in the feeding hopper (3), the anti-blocking mechanism (4) comprises a support (41) fixedly installed at the top end of the discharging cylinder (31), a connecting structure (42) rotatably installed at the center of the top surface, a transmission shaft (43) fixedly installed at the bottom surface of the connecting structure (42) and an anti-blocking structure (44) fixedly installed on the surface of the transmission shaft (43), the support (41) is of a cross structure, the connecting structure (42) is rotatably installed at the intersection of the cross structure, the top of the transmission shaft (43) penetrates the connecting structure (42), the connecting structure (42) comprises a clamping seat (421) rotatably installed at the center of the support (41), recesses (422) are formed at the two sides of the clamping seat (421), limit plates (423) are hingedly connected in the two recesses (422), protruding blocks (424) are arranged at the top of the two limit plates (423), and a spring (425) is connected to the bottom of the two limit plates (423).

2. An injection molding machine material delivery mechanism as defined in claim 1, wherein: The driving mechanism (5) comprises a speed reducer (51) fixedly installed at the center of the top surface of the cylinder cover (32), a clamping block (52) fixedly installed on the output shaft of the speed reducer (51) and clamping grooves (53) formed at the two sides of the clamping block (52), the output shaft of the speed reducer (51) penetrates the cylinder cover (32) and is rotatably connected with the cylinder cover (32).

3. An injection molding machine material delivery mechanism as defined in claim 1, wherein: The anti-blocking structure (44) comprises a stirring rod (441) fixedly installed at the top of the transmission shaft (43) and a spiral blade (442) fixedly installed at the bottom of the transmission shaft (43), wherein the stirring rod (441) is located in the conical structure of the discharging cylinder (31), and the spiral blade (442) is located in the mounting seat (2).

4. An injection molding machine material delivery mechanism as described in claim 1 wherein: The clamping seat (421) and the clamping block (52) are both of a cylindrical structure, and the clamping seat (421) is provided with a socket matched with the clamping block (52) at the top.

5. An injection molding machine material delivery mechanism as described in claim 1 wherein: Threaded screws (6) are connected at the two sides of the discharging cylinder (31), and one end of the screw (6) abuts against the bottom of the limit plate (423).

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