A plastic particle cutting machine

Abstract

The utility model relates to a kind of plastic particle cutting machine, belong to plastic particle processing technical field.Plastic particle cutting machine includes workbench, the top of the workbench is fixedly connected with support table, the plastic particle cutting machine further includes the cutting mechanism for cutting plastic being set in the top of the workbench, cutting mechanism includes the lifting plate slidingly connected in the inside of the support table and extending to its top.The plastic particle cutting machine, by setting eccentric wheel driven by driving motor, and lifting plate, connecting rod and cutting knife matched with eccentric wheel, constitute a set of efficient reciprocating cutting mechanism, the mechanism can directly convert the rotary motion of motor into the stable up-down reciprocating motion of cutting knife, save the step of needing to cut first transverse movement cutter in prior art, action is more direct, rapid, especially suitable for the high frequency, high efficiency cutting operation of continuous conveying plastic strip, significantly improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule processing technology, specifically a plastic granule cutting machine. Background Technology

[0002] In the plastic recycling and granulation industry, it is necessary to cut continuous plastic strips extruded from extruders into uniform granules. Traditional manual cutting methods are inefficient, labor-intensive, and pose safety hazards. To achieve automated cutting, various cutting devices have emerged in existing technologies.

[0003] Utility model patent CN216578699U discloses a wire drawing and cutting device for plastic granule production, relating to the technical field of cutting devices. The device includes a cutting box, a worktable, and a cutting blade. A lifting cylinder is fixedly installed at the bottom center of the cutting box. A first sliding groove is formed on one side of the cutting box near the bottom. A fixed slider is slidably connected to the inner wall of the first sliding groove. One end of the fixed slider is fixedly connected to the worktable. A support column is fixedly connected to the top of the cutting box. A sliding rod is fixedly connected to one side of the cutting box away from the first sliding groove. This utility model uses the lifting cylinder to move the plastic granules closer to the cutting blade, simultaneously pressing and fixing the upper surface of the plastic granules against a fixed suction cup. A protective pad is provided on the surface of the fixed suction cup in contact with the plastic granules, reducing damage to the plastic granules during operation, improving the practicality of the device, and increasing the cutting accuracy. Furthermore, this utility model is simple to operate and convenient to use.

[0004] However, during the use of this utility model, the existing cutting device is not suitable for continuous and high-speed cutting of plastic strips, resulting in low production efficiency and failure to meet production needs. Therefore, a plastic granule cutting machine is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-efficiency plastic granule cutting machine, which solves the problem that existing cutting devices are not suitable for continuous, high-speed cutting of plastic strips and have low production efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a plastic granule cutting machine, including a workbench, a support platform fixedly connected to the top of the workbench, and the plastic granule cutting machine further including a cutting mechanism disposed on the top of the workbench for cutting plastic;

[0007] The cutting mechanism includes a lifting plate that is slidably connected inside the support platform and extends to its top. Two connecting blocks are provided on the top of the lifting plate. A connecting rod is fixedly connected between the connecting blocks and the lifting plate. A cutting blade is fixedly connected between the two connecting blocks. An eccentric wheel is rotatably connected inside the lifting plate. A drive motor capable of driving the eccentric wheel is fixedly connected inside the support platform.

[0008] Furthermore, the lifting plate has an internal movable groove that matches the eccentric wheel, and the outer wall of the eccentric wheel abuts against the inner wall of the movable groove.

[0009] Furthermore, a fixing plate is fixedly connected to the top of the support platform, and a positioning block is fixedly connected to the side of the fixing plate near the lifting plate. The positioning block is slidably connected to the connecting rod.

[0010] Furthermore, a fixed bottom blade is fixedly connected to the side of the fixing plate near the cutting blade, and the fixed bottom blade abuts against the opposite side of the cutting blade.

[0011] Furthermore, a collection box is slidably connected to the top of the workbench, and a guide plate is fixedly connected to the side of the fixing plate near the collection box.

[0012] Furthermore, a support frame is fixedly connected to the top of the workbench, and two connecting plates are slidably connected inside the support frame. A support spring is fixedly connected between the connecting plates and the support frame.

[0013] Furthermore, a feeding cylinder is rotatably connected between the two connecting plates, and there are two feeding cylinders, one of which is rotatably connected to the inside of the support frame.

[0014] Furthermore, the support frame is externally fixedly connected to a drive device capable of driving the bottom feeding cylinder, and the outer surface of the feeding cylinder is provided with a feeding groove adapted to the plastic.

[0015] Compared with the prior art, the present invention provides a plastic granule cutting machine, which has the following beneficial effects:

[0016] 1. This plastic granule cutting machine, by setting up an eccentric wheel driven by a drive motor, and a lifting plate, connecting rod and cutting blade that cooperate with the eccentric wheel, constitutes a high-efficiency reciprocating cutting mechanism. This mechanism can directly convert the rotational motion of the motor into the stable up-and-down reciprocating motion of the cutting blade, eliminating the step of first moving the blade laterally before cutting in the existing technology. The action is more direct and faster, and it is particularly suitable for high-frequency and high-efficiency cutting of continuously conveyed plastic strips, which significantly improves production efficiency.

[0017] 2. This plastic granule cutting machine, by setting up a feeding cylinder driven by a drive device and opening a feeding groove on the surface of the feeding cylinder, realizes the automatic, continuous, and uniform feeding of plastic strips. Combined with a high-efficiency reciprocating cutting mechanism, it forms a complete "continuous feeding-continuous cutting" automated process, further reducing manual intervention, improving the automation level and overall efficiency of the production line, and solving the problem that existing cutting devices are not suitable for continuous and high-speed cutting of plastic strips and have low production efficiency. Attached Figure Description

[0018] Figure 1 A perspective view of the plastic granule cutting machine provided by this utility model;

[0019] Figure 2 A perspective view of the drive motor provided by this utility model;

[0020] Figure 3 A schematic diagram of the fixed bottom knife provided by this utility model;

[0021] Figure 4 for Figure 1 Enlarged structural diagram of part A in the middle.

[0022] In the diagram: 1. Workbench; 2. Support platform; 3. Lifting plate; 4. Connecting block; 5. Connecting rod; 6. Cutting blade; 7. Eccentric wheel; 8. Drive motor; 9. Movable groove; 10. Fixed plate; 11. Positioning block; 12. Fixed bottom blade; 13. Collection box; 14. Support frame; 15. Connecting plate; 16. Support spring; 17. Feeding cylinder. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 3 A plastic granule cutting machine according to this embodiment includes a workbench 1 and a cutting mechanism for cutting plastic disposed on the top of the workbench 1. A support platform 2 is fixedly connected to the top of the workbench 1. The cutting mechanism includes a lifting plate 3 that is slidably connected inside the support platform 2 and extends to its top. Two connecting blocks 4 are disposed on the top of the lifting plate 3. A connecting rod 5 is fixedly connected between the connecting blocks 4 and the lifting plate 3. A cutting blade 6 is fixedly connected between the two connecting blocks 4. An eccentric wheel 7 is rotatably connected inside the lifting plate 3. A drive motor 8 that can drive the eccentric wheel 7 is fixedly connected inside the support platform 2.

[0025] Specifically, the lifting plate 3 has an internal movable groove 9 that matches the eccentric wheel 7. The outer wall of the eccentric wheel 7 abuts against the inner wall of the movable groove 9. A fixed plate 10 is fixedly connected to the top of the support platform 2. A positioning block 11 is fixedly connected to the side of the fixed plate 10 near the lifting plate 3. The positioning block 11 is connected to the connecting rod 5 by a sliding connection.

[0026] It should be noted that a fixed bottom blade 12 is fixedly connected to the side of the fixed plate 10 near the cutting blade 6, and the fixed bottom blade 12 abuts against the opposite side of the cutting blade 6. A collection box 13 is slidably connected to the top of the worktable 1, and a guide plate is fixedly connected to the side of the fixed plate 10 near the collection box 13.

[0027] It should be noted that the upper cutting edge of the fixed bottom blade 12 is positioned opposite the lower cutting edge of the cutting blade 6, and the two cutting edges precisely abut against each other when the cutting blade 6 descends to its lowest point, forming a shearing action similar to that of scissors. The plastic strip to be cut is fed above the fixed bottom blade 12, and the cutting blade 6 descends to complete the cut. The cutting method is shearing rather than impact chopping, which has the advantages of smooth cut, high efficiency, low noise, and uniform blade wear.

[0028] Please see Figure 1 and Figure 4 In this embodiment, a support frame 14 is fixedly connected to the top of the workbench 1. Two connecting plates 15 are slidably connected inside the support frame 14. A support spring 16 is fixedly connected between the connecting plate 15 and the support frame 14. A feeding cylinder 17 is rotatably connected between the two connecting plates 15. There are two feeding cylinders 17, one of which is rotatably connected inside the support frame 14.

[0029] Specifically, the support frame 14 is externally fixedly connected to a drive device that can drive the bottom feeding cylinder 17, and the outer surface of the feeding cylinder 17 is provided with a feeding groove adapted to plastic.

[0030] It should be noted that the elastically clamping feeding mechanism design gives this cutting machine good adaptability to raw materials, enabling it to handle plastic strips with varying diameters or thicknesses, ensuring continuous and stable feeding, which is a prerequisite for achieving fixed-length cutting. The design of the feeding chute restricts the lateral movement of the plastic strip during the conveying process, ensuring that it enters the cutting station accurately in a straight line.

[0031] The working principle of the above embodiments is as follows:

[0032] The continuous plastic strip to be cut is introduced from the feed side of the support frame 14 and placed between the two feeding cylinders 17. Under the elastic force of the support spring 16, the upper connecting plate 15 drives the feeding cylinder 17 on it to slide downward, thereby continuously and stably pressing the plastic strip between the upper and lower feeding cylinders 17. The external drive device is started, driving the bottom feeding cylinder 17 to rotate. Through friction and the meshing action of the feeding groove, the plastic strip is automatically and uniformly fed towards the cutting mechanism at a constant speed. The drive motor 8 inside the support platform 2 is started, driving the eccentric wheel 7 to hold As the eccentric wheel 7 continues to rotate, its rotational motion is converted into a precise and stable vertical reciprocating motion of the lifting plate 3 along the inner wall of the support platform 2, since the outer wall of the eccentric wheel 7 abuts against the inner wall of the movable groove 9 inside the lifting plate 3. The lifting plate 3 drives the two connecting blocks 4 and the cutting blade 6 at its top to move up and down synchronously through the connecting rod 5. When the plastic strip is conveyed to the cutting station by the feeding mechanism, the downward-moving cutting blade 6 meets the fixed bottom blade 12 fixedly installed on the fixed plate 10. The two work together to form a shearing force, instantly and cleanly cutting the plastic strip between them.

[0033] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0034] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic pellet cutting machine, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a support platform (2), and the plastic granule cutting machine also includes a cutting mechanism for cutting plastics, which is set on the top of the workbench (1). The cutting mechanism includes a lifting plate (3) that is slidably connected inside the support platform (2) and extends to its top. Two connecting blocks (4) are provided on the top of the lifting plate (3). A connecting rod (5) is fixedly connected between the connecting block (4) and the lifting plate (3). A cutting blade (6) is fixedly connected between the two connecting blocks (4). An eccentric wheel (7) is rotatably connected inside the lifting plate (3). A drive motor (8) that can drive the eccentric wheel (7) is fixedly connected inside the support platform (2).

2. The plastic granule cutting machine according to claim 1, characterized in that: The lifting plate (3) has an internal movable groove (9) that is compatible with the eccentric wheel (7), and the outer wall of the eccentric wheel (7) abuts against the inner wall of the movable groove (9).

3. A plastic granule cutting machine according to claim 1, characterized in that: A fixing plate (10) is fixedly connected to the top of the support platform (2). A positioning block (11) is fixedly connected to the side of the fixing plate (10) near the lifting plate (3). The positioning block (11) is connected to the connecting rod (5) in a sliding connection manner.

4. A plastic granule cutting machine according to claim 3, characterized in that: A fixed bottom blade (12) is fixedly connected to the side of the fixed plate (10) near the cutting blade (6), and the fixed bottom blade (12) abuts against the opposite side of the cutting blade (6).

5. A plastic granule cutting machine according to claim 3, characterized in that: A collection box (13) is slidably connected to the top of the workbench (1), and a guide plate is fixedly connected to the side of the fixing plate (10) near the collection box (13).

6. A plastic granule cutting machine according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a support frame (14), and two connecting plates (15) are slidably connected inside the support frame (14). A support spring (16) is fixedly connected between the connecting plate (15) and the support frame (14).

7. A plastic granule cutting machine according to claim 6, characterized in that: A feeding cylinder (17) is rotatably connected between the two connecting plates (15), and there are two feeding cylinders (17), one of which is rotatably connected to the inside of the support frame (14).

8. A plastic granule cutting machine according to claim 7, characterized in that: The support frame (14) is externally fixedly connected to a drive device that can drive the bottom feeding cylinder (17), and the outer surface of the feeding cylinder (17) is provided with a feeding groove adapted to plastic.

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