Discharging mechanism of plastic forming machine

Abstract

The utility model discloses a blanking mechanism of a plastic forming machine, which belongs to the technical field of plastic processing equipment, solves the problem that a forming roller of an existing device is poorer in material conveying efficiency, and comprises a barrel body, a discharge hopper is fixedly connected to the bottom surface of the barrel body, and a feed hopper is arranged on the side surface of the barrel body; a granulation conveying assembly is arranged in the barrel, a forming plate fixedly sleeves the bottom end of the inner wall of the barrel, uniformly-distributed forming holes are formed in the top surface of the forming plate, and through arrangement of a motor, a rotating rod, a first spiral blade, a lantern ring, a blade and a second spiral blade and the connection relation of the motor, the rotating rod, the first spiral blade, the lantern ring, the blade and the second spiral blade, the forming holes are uniformly distributed. The first spiral blade can convey raw materials entering the barrel to the position below the forming plate, the blade can cut strip-shaped raw materials discharged through the forming plate into particles, the second spiral blade can convey the particle-shaped raw materials to the outside of the discharging hopper, and the conveying efficiency of the raw materials is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing equipment technology, specifically to a feeding mechanism for a plastic molding machine. Background Technology

[0002] Plastic molding machines granulate and form waste plastic raw materials, which is a key step in realizing plastic recycling. After pretreatment to remove impurities, cleaning and drying, the waste plastic raw materials are fed into the hopper of the plastic molding machine. Driven by the rotation of the screw, the raw materials are transported to the heating zone, where they are heated to a molten state by the frictional heat generated by the external heating device of the barrel and the shearing of the screw.

[0003] A search revealed that patent application number 202420436727.3 discloses a feeding mechanism for a plastic molding machine, comprising a housing, an upper cylinder and a lower cylinder, a hopper at the top of the upper cylinder, a discharge port on the lower cylinder, a feeding mechanism at the discharge port, a feeding channel communicating with the discharge port, an auxiliary feeder on the outer periphery of the feeding channel, a sieve hole for sieving powder on the bottom plate of the auxiliary feeder, a vibrator on the side wall of the auxiliary feeder, and the auxiliary feeder connected to the feeding channel via a kneadable material.

[0004] Although the feeding mechanism of this plastic molding machine uses multiple forming rollers to squeeze plastic raw materials into the forming holes, and the plastic raw materials are continuously squeezed in and cut into granules by a cutting blade, thus forming plastic granules, the cooperation structure and operating mechanism of the forming rollers and forming holes of the feeding mechanism of this plastic molding machine result in poor material transmission path. Molten plastic is prone to local accumulation and high flow resistance during the extrusion process, making it difficult for the forming rollers to quickly and stably transport the raw materials to the forming holes.

[0005] Therefore, we propose a feeding mechanism for a plastic molding machine. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a feeding mechanism for a plastic molding machine, which solves the problem of poor material conveying efficiency of the molding roller in the existing device.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a feeding mechanism for a plastic molding machine, comprising a cylinder, wherein a discharge hopper is fixedly connected to the bottom surface of the cylinder, and a feeding hopper is provided on the side surface of the cylinder;

[0008] The cylinder is equipped with a granulation conveying assembly inside. A forming plate is fixedly fitted at the bottom of the inner wall of the cylinder, and the top surface of the forming plate has uniformly distributed forming holes.

[0009] The granulation conveying assembly includes a motor fixedly installed in the middle of the top surface of the cylinder. The output end of the motor is fixedly connected to a rotating rod through the top surface of the cylinder. The rotating rod is rotatably fitted in the middle of the forming plate through a bearing ring. The bottom end of the rotating rod extends into the interior of the discharge hopper. A first spiral blade is fixedly fitted on the outer surface of the portion of the rotating rod above the forming plate. A blade and a second spiral blade are provided on the outer surface of the portion of the rotating rod below the forming plate.

[0010] Preferably, the blade is located above the second helical blade, the blade is fixedly mounted on the outer surface of the collar and distributed in a ring array, the collar is fixedly fitted on the outer surface of the rotating rod, wherein the blade cuts the strip-shaped raw material discharged from the forming hole of the forming plate.

[0011] Preferably, an annular plate, which is fixedly fitted onto the inner wall of the cylinder and is hollow inside, is provided below the forming plate. The inner wall of the annular plate is fixedly installed with atomizing nozzles arranged in a ring array. The atomizing nozzles cool the strip-shaped raw material discharged through the forming holes of the forming plate, so as to facilitate the cutting of the strip-shaped raw material and prevent the cut granular raw material from sticking together.

[0012] Preferably, a water inlet pipe is fixedly installed on the side wall of the annular plate. The water inlet pipe penetrates the side wall of the cylinder and is connected to an external water source. The external water source enters the interior of the annular plate through the water inlet pipe and is finally sprayed out through the atomizing nozzle.

[0013] Preferably, an upwardly inclined feed pipe is fixedly installed at the top of the side wall of the cylinder, the bottom of the feed hopper is arc-shaped, and the bottom of the feed hopper is connected to the top of the feed pipe through a flange, wherein the molten raw material in the plastic molding machine enters the interior of the cylinder through the feed hopper and the feed pipe.

[0014] This utility model provides a feeding mechanism for a plastic molding machine. It has the following beneficial effects:

[0015] 1. The feeding mechanism of this plastic molding machine, through the setting of motor, rotating rod, first spiral blade, collar, blade, second spiral blade and their connection relationship, the first spiral blade can convey the raw material entering the cylinder to the bottom of the molding plate, the blade can cut the strip raw material discharged through the molding plate into granules, and the second spiral blade can convey the granular raw material to the outside of the discharge hopper, which improves the conveying efficiency of raw materials and solves the problem of poor material conveying efficiency of the molding roller in the existing device;

[0016] 2. In the feeding mechanism of this plastic molding machine, external water enters the interior of the annular plate through the water inlet pipe and is finally sprayed out through the atomizing nozzle. The atomizing nozzle cools the strip-shaped raw material discharged through the molding hole of the molding plate, so as to facilitate the cutting of the strip-shaped raw material and prevent the cut granules from sticking together, which is beneficial to improving the quality of plastic granules. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the cylindrical body of this utility model;

[0020] Figure 4 This is a schematic diagram of the granulation conveying component of this utility model.

[0021] In the diagram: 1. Cylinder; 11. Feed pipe; 2. Feed hopper; 3. Discharge hopper; 4. Forming plate; 5. Granulation conveying assembly; 51. Motor; 52. Rotating rod; 53. First spiral blade; 54. Collar; 55. Blade; 56. Second spiral blade; 6. Annular plate; 61. Atomizing nozzle; 62. Water inlet pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: As Figure 1-4As shown: The assembly includes a cylinder 1, a discharge hopper 3 fixedly connected to the bottom surface of the cylinder 1, a feed hopper 2 located on the side of the cylinder 1, a granulation conveying assembly 5 inside the cylinder 1, a forming plate 4 fixedly fitted onto the bottom end of the inner wall of the cylinder 1, and evenly distributed forming holes on the top surface of the forming plate 4. The granulation conveying assembly 5 includes a motor 51 fixedly installed in the middle of the top surface of the cylinder 1. A rotating rod 52 is fixedly connected to the output end of the motor 51 through the top surface of the cylinder 1. The rotating rod 52 is rotatably fitted onto the middle of the forming plate 4 via a bearing ring. The bottom end of the rotating rod 52 extends into the interior of the discharge hopper 3. A first spiral blade 53 is fixedly fitted onto the outer surface of the portion of the rotating rod 52 above the forming plate 4. The portion of the rotating rod 52 below the forming plate 4... The outer surface is provided with blades 55 and second helical blades 56. Blades 55 are located above the second helical blades 56. Blades 55 are fixedly installed on the outer surface of collar 54 and distributed in a ring array. Collar 54 is fixedly fitted on the outer surface of rotating rod 52. Through the arrangement of motor 51, rotating rod 52, first helical blade 53, collar 54, blades 55, second helical blades 56 and their connection relationship, the first helical blade 53 can convey the raw material entering the cylinder 1 to the bottom of the forming plate 4. The blades 55 can cut the strip-shaped raw material discharged through the forming plate 4 into granules. The second helical blades 56 can convey the granular raw material to the outside of the discharge hopper 3, thereby improving the conveying efficiency of raw materials.

[0024] Example 2: Figure 1-4 As shown: Below the molding plate 4, there is an annular plate 6 that is fixedly fitted on the inner wall of the cylinder 1 and is hollow inside. The inner wall of the annular plate 6 is fixedly installed with atomizing nozzles 61 arranged in a ring array. A water inlet pipe 62 is fixedly installed on the side wall of the annular plate 6. The water inlet pipe 62 passes through the side wall of the cylinder 1 and is connected to an external water source. The top of the side wall of the cylinder 1 is fixedly installed with an upwardly inclined feed pipe 11. The bottom of the feed hopper 2 is arc-shaped. The bottom of the feed hopper 2 is connected to the top of the feed pipe 11 through a flange. The external water source enters the interior of the annular plate 6 through the water inlet pipe 62 and is finally sprayed out through the atomizing nozzles 61. The atomizing nozzles 61 cool the strip-shaped raw material discharged through the molding hole of the molding plate 4, so as to facilitate the cutting of the strip-shaped raw material and avoid the granules after cutting sticking together, which is beneficial to improving the quality of plastic granules.

[0025] The working principle and usage process of this utility model: In use, the molten raw material inside the plastic molding machine enters the interior of the cylinder 1 through the feed hopper 2 and feed pipe 11. Then, the motor 51 is started to drive the rotating rod 52 to rotate. Then, the rotating rod 52 drives the first spiral blade 53, the collar 54, the blade 55 and the second spiral blade 56 to rotate together. Then, the first spiral blade 53 conveys the molten raw material to the bottom of the molding plate 4. The molten raw material passes through the molding hole on the molding plate 4 to form a strip. At the same time, the external water source enters the interior of the annular plate 6 through the water inlet pipe 62 and is sprayed onto the strip raw material through the atomizing nozzle 61, which can cool the strip raw material. Then, the blade 55 cuts the strip raw material into granules. The granular raw material enters the interior of the discharge hopper 3 and is discharged. The second spiral blade 56 can convey the granular raw material inside the discharge hopper 3 to the outside.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding mechanism for a plastic molding machine, comprising a cylinder (1), wherein a discharge hopper (3) is fixedly connected to the bottom surface of the cylinder (1), and a feeding hopper (2) is provided on the side of the cylinder (1). characterized in that The cylinder (1) is equipped with a granulation conveying assembly (5) inside. A forming plate (4) is fixedly fitted on the bottom of the inner wall of the cylinder (1). The top surface of the forming plate (4) is provided with uniformly distributed forming holes. The granulation conveying assembly (5) includes a motor (51) fixedly installed in the middle of the top surface of the cylinder (1). The output end of the motor (51) is fixedly connected to a rotating rod (52) through the top surface of the cylinder (1). The rotating rod (52) is rotated and fitted in the middle of the forming plate (4) through a bearing ring. The bottom end of the rotating rod (52) extends into the interior of the discharge hopper (3). The outer surface of the part of the rotating rod (52) above the forming plate (4) is fixedly fitted with a first spiral blade (53). The outer surface of the part of the rotating rod (52) below the forming plate (4) is provided with a blade (55) and a second spiral blade (56).

2. The plastic molding machine's material feeding mechanism according to claim 1, characterized in that: The blade (55) is located above the second helical blade (56). The blade (55) is fixedly mounted on the outer surface of the collar (54) and distributed in a ring array. The collar (54) is fixedly fitted on the outer surface of the rotating rod (52).

3. The plastic molding machine's material feeding mechanism according to claim 1, wherein: Below the forming plate (4) is a ring plate (6) that is fixedly fitted on the inner wall of the cylinder (1) and is hollow inside. The inner wall of the ring plate (6) is fixedly installed with atomizing nozzles (61) arranged in a ring array.

4. The plastic molding machine's material feeding mechanism according to claim 3, wherein: A water inlet pipe (62) is fixedly installed on the side wall of the annular plate (6). The water inlet pipe (62) penetrates the side wall of the cylinder (1) and is connected to an external water source.

5. The plastic molding machine's material feeding mechanism according to claim 1, wherein: The top of the side wall of the cylinder (1) is fixedly installed with an upwardly inclined feed pipe (11), and the bottom of the feed hopper (2) is arc-shaped. The bottom of the feed hopper (2) is connected to the top of the feed pipe (11) through a flange.

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