A plastic master batch shearing device

Abstract

This utility model belongs to the field of plastic masterbatch processing technology, and relates to a plastic masterbatch shearing device, including a support frame. A connecting plate is lifted and lowered above the support frame. A cutter is fixedly connected to the bottom of one end of the connecting plate. A positioning block is fixedly connected to the top of the support frame. A shearing groove is formed on the top surface of the positioning block. The cutter slides in cooperation with the inner wall of the shearing groove. A discharge port is formed on one end of the support frame located at the positioning block. A screen plate is rotatably arranged below the support frame, located directly below the discharge port. A driving component is set on the top of the support frame. The driving component drives the connecting plate to move up and down while simultaneously driving the screen plate to rotate reciprocally. The advantages of this utility model are: the connecting shaft at the bottom of the connecting rod slides in the waist-shaped groove at the top of the hinge seat, which pushes the screen plate to swing up and down, thereby causing the plastic masterbatch falling on the screen plate to shake, making it easier for the plastic masterbatch to be screened out, and reducing the possibility of plastic masterbatch accumulating in one place and causing blockage.

Description

Technical Field

[0001] This utility model belongs to the field of plastic masterbatch processing technology, and relates to a plastic masterbatch shearing device. Background Technology

[0002] Plastic masterbatch refers to concentrated granular materials composed of supermassive functional additives (such as pigments, fillers, flame retardants, etc.) combined with carrier resins, dispersants, and other components. It is used as a core modifier in plastic processing. During processing, in order to meet the feeding requirements of transportation, storage, and injection molding equipment, the rod-shaped plastic masterbatch discharged from the extruder needs to be cut into uniform granules, thus requiring the use of a shearing device.

[0003] A high-efficiency shearing device for plastic masterbatch disclosed in Chinese patent CN221161128U has a support spring fixedly connected to the upper surface of the mounting rod, a sleeve fixedly sleeved to the upper surface of the support spring, and a collection hopper fixedly connected to the outer surface of two adjacent sleeves. The collection hopper is located directly below the feeding trough. The support spring provides movable support for the collection hopper, thereby facilitating the movement of the collection hopper within the collection box. A fixing rod is fixedly connected to the lower inner wall of the collection box.

[0004] When in use, the shearing device pours material onto the top of the screen through a collection hopper. The collection hopper is located at one end above the screen, which fixes the position of the poured material. Over time, this can easily cause material to accumulate and cause blockage.

[0005] To address the aforementioned problems, this utility model proposes a plastic masterbatch shearing device. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model proposes a plastic masterbatch shearing device.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a support frame, a connecting plate is lifted and lowered above the support frame, a cutter is fixedly connected to the bottom of one end of the connecting plate, a positioning block is fixedly connected to the top of the support frame, a shearing groove is opened on the top surface of the positioning block, the cutter slides in cooperation with the inner wall of the shearing groove, and a discharge port is opened on one end of the support frame located at the positioning block.

[0008] A screen plate is rotatably mounted below the support frame, and the screen plate is located directly below the discharge port. A drive assembly is mounted on the top of the support frame. The drive assembly drives the connecting plate to move up and down while simultaneously driving the screen plate to rotate back and forth.

[0009] Furthermore, a feeding box is fixedly connected to the top of the support frame, and the feeding box is fixedly connected to one end of the positioning block. The feeding box has a number of conveying holes spaced apart, and the positioning block has a number of positioning holes spaced apart. The number of positioning holes and conveying holes are equal and correspond one-to-one.

[0010] Furthermore, the shearing groove is opened in the middle of the positioning hole, and the shearing groove divides the positioning hole into two parts. One part of the positioning hole is horizontally arranged and connected to the corresponding conveying hole, while the bottom surface of the other part of the positioning hole is inclined. The bottom surface of the other part of the positioning hole gradually slopes downward from one end near the feeding box to the other end.

[0011] Furthermore, a collection box is fixedly connected to the bottom of the support frame, and the sieve plate is located inside the collection box, with one end of the sieve plate rotatably connected to the inner wall of the collection box.

[0012] Furthermore, one end of the collection box has an opening, and a U-shaped mounting bracket is fixedly connected to the end of the collection box with the opening. A sliding rod slides horizontally through the middle of the mounting bracket, and a baffle is fixedly connected to one end of the sliding rod. The baffle is slidably and sealingly disposed inside the opening of the collection box.

[0013] A second spring is fitted onto the slide rod. One end of the second spring is fixedly connected to one side of the baffle, and the other end of the second spring is fixedly connected to one side of the middle of the mounting bracket.

[0014] Furthermore, the drive assembly includes a motor, a support base is fixedly connected to the top of the support frame, the motor is fixedly connected to one side of the top of the support base, a rotating shaft is fixedly connected to the output end of the motor, and a disc is eccentrically fixedly connected to one end of the rotating shaft, with the outer surface of the disc abutting against the top surface of the connecting plate.

[0015] A guide rod is fixedly connected to the top of the support frame, and the top end of the guide rod is fixedly connected to the support base. One end of the connecting plate is slidably sleeved on the guide rod, and a first spring is sleeved on the guide rod. One end of the first spring is fixedly connected to the bottom of the connecting plate, and the other end of the first spring is fixedly connected to the top surface of the support frame.

[0016] Furthermore, a T-shaped connecting rod slides vertically through the support frame, the top of the connecting rod slides through the connecting plate, and a waist-shaped groove is opened at the top of the connecting rod. A push rod is fixedly connected to one side of the disc. The push rod is not collinear with the central axis of the rotating shaft, and the push rod is slidably connected to the inside of the waist-shaped groove on the connecting rod.

[0017] A hinge seat is fixedly connected to the top of one end of the sieve plate. A waist-shaped groove is opened at the top of the hinge seat. A connecting shaft is rotatably connected to the bottom of the connecting rod. The connecting shaft is slidably connected to the inside of the waist-shaped groove on the hinge seat.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The plastic masterbatch shearing device is equipped with a screen plate. One end of the screen plate is rotatably connected to the inner wall of the collection box. The plastic masterbatch after being sheared by the cutter will fall onto the top of the screen plate through the discharge port. The motor drives the push rod to rotate, causing the push rod to slide in the waist-shaped groove at the top of the connecting rod, which will push the connecting rod to move up and down. The connecting shaft at the bottom of the connecting rod slides in the waist-shaped groove at the top of the hinge seat, which will push the screen plate to swing up and down, thereby causing the plastic masterbatch falling on the screen plate to shake, making it easier for the plastic masterbatch to be screened out, while reducing the situation where the plastic masterbatch accumulates in one place and causes blockage.

[0020] 2. The plastic masterbatch shearing device is equipped with a disc and a push rod. The central axes of the disc and the push rod are not collinear with the central axis of the rotating shaft. This means that when the motor drives the rotating shaft to rotate, the disc will rotate and drive the cutter to move downward to shear the plastic masterbatch. The push rod will rotate and drive the screen plate to screen the plastic masterbatch. It is not necessary to drive the cutter and the screen plate separately, which makes the operation simple. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the collection box in this utility model;

[0023] Figure 3 This is a schematic diagram of the sieve plate in this utility model;

[0024] Figure 4 This is a schematic diagram of the positioning block in this utility model.

[0025] In the diagram: 1. Support frame; 2. Collection box; 3. Motor; 4. Connecting plate; 5. First spring; 6. Disc; 7. Push rod; 8. Connecting rod; 9. Positioning block; 10. Feeding box; 11. Screen plate; 12. Baffle; 13. Rotating shaft; 14. Second spring; 15. Mounting frame; 16. Cutter; 17. Discharge port; 18. Slide rod; 19. Support base; 20. Guide rod; 21. Hinge base. Detailed Implementation

[0026] 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.

[0027] like Figures 1-4As shown, the technical solution adopted by this utility model is as follows: a plastic masterbatch shearing device, including a support frame 1, a connecting plate 4 is lifted and lowered above the support frame 1, and a cutter 16 is fixedly connected to the bottom of one end of the connecting plate 4.

[0028] A positioning block 9 is fixedly connected to the top of the support frame 1, and a shearing groove is formed on the top surface of the positioning block 9. The cutter 16 slides in cooperation with the inner wall of the shearing groove, and a discharge port 17 is formed on one end of the support frame 1 located at the positioning block 9. This allows the cutter 16 to cooperate with the inner wall of the shearing groove to shear the plastic masterbatch, and the sheared plastic masterbatch falls into the discharge port 17.

[0029] A feeding box 10 is fixedly connected to the top of the support frame 1, and the feeding box 10 is fixedly connected to one end of the positioning block 9. The feeding box 10 has several conveying holes spaced apart. During use, the rod-shaped plastic masterbatch extruded by the plastic extruder is fed into the conveying holes. The plastic extruder is an existing product and will not be described in detail here.

[0030] The positioning block 9 has several positioning holes spaced apart, with the number of positioning holes and conveying holes being equal and corresponding one-to-one. This allows the rod-shaped plastic masterbatch in the conveying holes to enter the positioning holes.

[0031] A shearing groove is located in the middle of the positioning hole. The shearing groove divides the positioning hole into two parts. One part of the positioning hole, closer to the conveying hole, is horizontally arranged and connected to the corresponding conveying hole. The bottom surface of the other part of the positioning hole is inclined, gradually sloping downwards from one end near the feeding box 10 to the other end. This facilitates the sheared plastic masterbatch falling downwards from the inclined part of the bottom surface of the positioning hole.

[0032] A screen plate 11 is rotatably mounted below the support frame 1, and the screen plate 11 is located directly below the discharge port 17. This allows the plastic masterbatch discharged from the discharge port 17 to fall onto the screen plate 11.

[0033] A collection box 2 is fixedly connected to the bottom of the support frame 1. A sieve plate 11 is located inside the collection box 2, and one end of the sieve plate 11 is rotatably connected to the inner wall of the collection box 2. This allows the plastic masterbatch after being sieved by the sieve plate 11 to fall into the collection box 2.

[0034] The collection box 2 has an opening at one end. A U-shaped mounting bracket 15 is fixedly connected to the opening end of the collection box 2, and a sliding rod 18 slides horizontally through the middle of the mounting bracket 15. A baffle 12 is fixedly connected to one end of the sliding rod 18, and the baffle 12 is slidably and sealingly disposed within the opening of the collection box 2. The collection box 2 is sealed by the baffle 12.

[0035] A second spring 14 is fitted onto the slide bar 18. One end of the second spring 14 is fixedly connected to one side of the baffle 12, and the other end of the second spring 14 is fixedly connected to one side of the middle of the mounting bracket 15. In the initial state, the second spring 14 pushes the baffle 12 into the opening of the collection box 2.

[0036] A drive assembly is provided on the top of the support frame 1. The drive assembly drives the connecting plate 4 to move up and down while driving the screen plate 11 to rotate back and forth.

[0037] The drive assembly includes a motor 3. A support base 19 is fixedly connected to the top of the support frame 1, and the motor 3 is fixedly connected to one side of the top of the support base 19. A rotating shaft 13 is fixedly connected to the output end of the motor 3, and the motor 3 drives the rotating shaft 13 to rotate. A disc 6 is eccentrically fixedly connected to one end of the rotating shaft 13, and the outer surface of the disc 6 abuts against the top surface of the connecting plate 4. When the rotating shaft 13 drives the disc 6 to rotate, the portion of the outer surface of the disc 6 that is farther away from the rotating shaft 13 will push the connecting plate 4 downward.

[0038] A guide rod 20 is fixedly connected to the top of the support frame 1, and the top end of the guide rod 20 is fixedly connected to the support base 19. One end of the connecting plate 4 is slidably sleeved on the guide rod 20. The guide rod 20 positions the connecting plate 4.

[0039] A first spring 5 is fitted onto the guide rod 20. One end of the first spring 5 is fixedly connected to the bottom of the connecting plate 4, and the other end of the first spring 5 is fixedly connected to the top surface of the support frame 1. In the initial state, the first spring 5 pushes the connecting plate 4 upward, causing the top surface of the connecting plate 4 to abut against the disc 6.

[0040] A T-shaped connecting rod 8 slides vertically through the support frame 1, and the top of the connecting rod 8 slides through the connecting plate 4. The connecting rod 8, in conjunction with the guide rod 20, allows the connecting plate 4 to slide only up and down.

[0041] The top of the connecting rod 8 has a waist-shaped groove. A push rod 7 is fixedly connected to one side of the disc 6. The push rod 7 is not collinear with the central axis of the rotating shaft 13, and the push rod 7 is slidably connected inside the waist-shaped groove on the connecting rod 8. This causes the rotating shaft 13 to drive the push rod 7 to rotate. The rotation of the push rod 7 around the central axis of the rotating shaft 13 will push the connecting rod 8 to move up and down.

[0042] A hinge seat 21 is fixedly connected to the top of one end of the sieve plate 11, and a waist-shaped groove is formed at the top of the hinge seat 21. A connecting shaft is rotatably connected to the bottom end of the connecting rod 8, and the connecting shaft is slidably connected inside the waist-shaped groove on the hinge seat 21. The connecting rod 8 drives the connecting shaft to move up and down, and the connecting shaft slides inside the hinge seat 21, which in turn pushes the sieve plate 11 to rotate back and forth through the hinge seat 21.

[0043] Working principle:

[0044] In use, the rod-shaped plastic masterbatch extruded by the plastic extruder is inserted into the conveying hole of the feeding box 10, and the end of the rod-shaped plastic masterbatch will enter the corresponding positioning hole. The rod-shaped plastic masterbatch will then pass through the shearing groove.

[0045] Start motor 3, which drives shaft 13 to rotate. Shaft 13 then drives disc 6 and push rod 7 to rotate.

[0046] Because the central axes of the rotating shaft 13, the disk 6, and the push rod 7 are not collinear, when the disk 6 rotates around the central axis of the rotating shaft 13, the part of the outer surface of the disk 6 that is farther away from the rotating shaft 13 will push the connecting plate 4 downward.

[0047] The connecting plate 4 slides downward on the guide rod 20, compressing the first spring 5. The connecting plate 4 drives the cutter 16 to move downward, causing the cutter 16 to cut the plastic masterbatch at the shearing groove.

[0048] The sheared plastic masterbatch falls downwards through the inclined portion of the bottom surface of the positioning hole into the discharge port 17, and then onto the sieve plate 11. The plastic masterbatch screened by the sieve plate 11 falls to the bottom of the collection box 2.

[0049] When the portion of the outer surface of the disc 6 that is closer to the rotating shaft 13 stops pushing the connecting plate 4 downwards, the first spring 5 will push the connecting plate 4 upwards. This causes the connecting plate 4 to slide upwards on the guide rod 20, and drives the cutter 16 to move upwards.

[0050] Then, through the rotation of the disc 6 and in conjunction with the first spring 5, the connecting plate 4 drives the cutter 16 to move up and down to cut the plastic masterbatch.

[0051] When push rod 7 rotates around the central axis of rotating shaft 13, push rod 7 slides in the waist-shaped groove at the top of connecting rod 8, which will drive the waist-shaped groove to move up and down, causing connecting rod 8 to move up and down.

[0052] The connecting shaft at the bottom of the connecting rod 8 slides in the waist-shaped groove at the top of the hinge seat 21, which in turn drives the screen plate 11 to rotate reciprocally. This causes the screen plate 11 to screen the plastic masterbatch, facilitating the screening of the plastic masterbatch and reducing the possibility of plastic masterbatch accumulating in one place and causing blockage.

[0053] After the plastic masterbatch is cut, pull the slide bar 18 to slide the baffle 12 outwards from the collection box 2. The baffle 12 will compress the second spring 14, allowing the worker to remove the plastic masterbatch from the top of the sieve plate 11 and the bottom of the collection box 2.

[0054] When the slide bar 18 is released, the second spring 14 will push the baffle 12 into the opening of the collection box 2, resealing the collection box 2 for continued use.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A plastic master pellet shearing device, characterized by, Includes a support frame (1), a connecting plate (4) is provided above the support frame (1) and a cutter (16) is fixedly connected to the bottom of one end of the connecting plate (4). A positioning block (9) is fixedly connected to the top of the support frame (1). A shearing groove is provided on the top surface of the positioning block (9). The cutter (16) slides with the inner wall of the shearing groove. A discharge port (17) is provided on one end of the support frame (1) located at the positioning block (9). A screen plate (11) is rotatably arranged below the support frame (1). The screen plate (11) is located directly below the discharge port (17). A drive assembly is arranged on the top of the support frame (1). The drive assembly drives the connecting plate (4) to move up and down while driving the screen plate (11) to rotate back and forth.

2. The plastic masterbatch shearing device according to claim 1, characterized in that: The top of the support frame (1) is fixedly connected to a feeding box (10), which is fixedly connected to one end of the positioning block (9). The feeding box (10) has several conveying holes spaced apart, and the positioning block (9) has several positioning holes spaced apart. The number of positioning holes and conveying holes are equal and correspond one-to-one.

3. A plastic master pellet shearing device according to claim 2, wherein: The shearing groove is located in the middle of the positioning hole. The shearing groove divides the positioning hole into two parts. One part of the positioning hole is horizontally arranged and connected to the corresponding conveying hole. The bottom surface of the other part of the positioning hole is inclined. The bottom surface of the other part of the positioning hole gradually slopes downward from one end near the feeding box (10) to the other end.

4. The plastic masterbatch shearing device according to claim 1, characterized in that: The bottom of the support frame (1) is fixedly connected to a collection box (2), and the sieve plate (11) is located inside the collection box (2). One end of the sieve plate (11) is rotatably connected to the inner wall of the collection box (2).

5. A plastic masterbatch shearing device according to claim 4, characterized in that: The collection box (2) has an opening at one end, and a U-shaped mounting bracket (15) is fixedly connected to the opening end of the collection box (2). A sliding rod (18) slides horizontally through the middle of the mounting bracket (15), and a baffle (12) is fixedly connected to one end of the sliding rod (18). The baffle (12) is sealed and slidably disposed in the opening of the collection box (2). A second spring (14) is fitted on the slide rod (18). One end of the second spring (14) is fixedly connected to one side of the baffle (12), and the other end of the second spring (14) is fixedly connected to one side of the middle part of the mounting bracket (15).

6. A plastic master pellet shearing device as defined in claim 1, wherein: The drive assembly includes a motor (3), a support base (19) is fixedly connected to the top of the support frame (1), the motor (3) is fixedly connected to one side of the top of the support base (19), the output end of the motor (3) is fixedly connected to a rotating shaft (13), one end of the rotating shaft (13) is eccentrically fixedly connected to a disc (6), and the outer surface of the disc (6) abuts against the top surface of the connecting plate (4). The top of the support frame (1) is fixedly connected to a guide rod (20), the top end of the guide rod (20) is fixedly connected to the support base (19), one end of the connecting plate (4) is slidably sleeved on the guide rod (20), a first spring (5) is sleeved on the guide rod (20), one end of the first spring (5) is fixedly connected to the bottom of the connecting plate (4), and the other end of the first spring (5) is fixedly connected to the top surface of the support frame (1).

7. A plastic master pellet shearing device as claimed in claim 6, wherein: A T-shaped connecting rod (8) slides vertically through the support frame (1), and the top of the connecting rod (8) slides through the connecting plate (4). A waist-shaped groove is provided at the top of the connecting rod (8). A push rod (7) is fixedly connected to one side of the disc (6). The push rod (7) is not collinear with the central axis of the rotating shaft (13). The push rod (7) is slidably connected to the inside of the waist-shaped groove on the connecting rod (8). A hinge seat (21) is fixedly connected to the top of one end of the sieve plate (11). A waist-shaped groove is provided at the top of the hinge seat (21). A connecting shaft is rotatably connected to the bottom of the connecting rod (8). The connecting shaft is slidably connected to the inside of the waist-shaped groove on the hinge seat (21).

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