Plastic raw material crushing mechanism

Abstract

The utility model relates to the technical field of plastic smashing, in particular to a plastic raw material smashing mechanism which comprises a smashing box and a slitting box located at the top of the smashing box, a thermal cutting net frame is fixed to the portion, close to a bottom opening, of the slitting box, the thermal cutting net frame is arranged in a grid shape, and high temperature capable of melting plastic is generated after the thermal cutting net frame is powered on. Large plastic blocks are cut into small plastic blocks through hot melting after passing through the hot cutting net frame, the small plastic blocks fall into the smashing box to be further smashed, the one-time feeding amount is large through the hot cutting mode, and jumping of the large plastic blocks is not prone to being caused.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic crushing, in particular to a plastic raw material crushing mechanism. Background Art

[0002] There are many types of plastic raw materials, including various thick plastic plates. Large thick plastic plates are directly fed into the crusher. Large thick plastic plates are not easy to deform and the feeding efficiency is limited.

[0003] General crushers usually use a multi-channel crushing mechanism to crush large pieces of plastic into small pieces and then crush them. The multi-channel crushing mechanism is mechanical crushing.

[0004] This solution is based on the characteristic that plastic raw materials will melt when heated. Before crushing, a set thermal cutting grid is used to thermally cut large pieces of plastic into small pieces. The thermal cutting method is not easy to cause the large plastic plates to jump, and the cutting efficiency is better. Utility Model Content

[0005] The utility model aims to at least solve the problem in the prior art that the plastic plate may jump in the purely mechanical cutting and crushing method, thereby affecting the feeding efficiency.

[0006] This solution provides a plastic raw material crushing mechanism, which is achieved by the following specific technical means: it includes a crushing box and a slitting box located on the top of the crushing box, a hot cutting grid is fixed near the bottom of the slitting box, and the hot cutting grid is arranged in a grid shape. Large pieces of plastic are hot-melted and cut into small pieces after passing through the hot cutting grid; a pressing mechanism is provided at the top of the slitting box, and the pressing mechanism is used to press down the plastic raw material placed in the slitting box to cause it to pass through the hot cutting grid quickly.

[0007] Preferred technical solution 1: An exhaust hole is provided on the wall of the slitting box near the thermal cutting grid, and the exhaust hole is connected to an external fume adsorption device through a pipe.

[0008] Preferred technical solution two: The pressing mechanism includes a pressing plate sliding in the cutting box, and a lifting control component is connected between the top surface of the pressing plate and the vertical frame fixed to the top of the cutting box, and the height of the pressing plate is controlled by the lifting control component.

[0009] Preferred technical solution three: A window is provided on the upper side wall of the slitting box for the pressure plate to pass through laterally. When the pressure plate moves to the height of the window, the top opening of the slitting box is blocked or opened by the lateral movement of the pressure plate.

[0010] Preferred technical solution four: A transverse groove is further provided on the top surface of the pressure plate, the transverse groove is perpendicular to the window, a connecting seat 1 slides in the transverse groove, and the connecting seat 1 is connected to the lifting control assembly.

[0011] The above structure enables this solution to have the following beneficial effects:

[0012] 1. Taking advantage of the fact that plastic will melt when heated, when cutting large pieces of plastic raw materials, the hot cutting grid is set up to heat-cut and separate the large pieces of plastic into small pieces, which is not likely to cause the large plastic plate to jump;

[0013] 2. The thermal cutting method can feed a large amount of material at one time and is not prone to clogging;

[0014] 3. The setting of the pressing mechanism can speed up the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0017] Figure 2 This is the front view of this scheme;

[0018] Figure 3 This is a schematic diagram of the structure of the lifting control component of this solution;

[0019] Figure 4 This is a schematic diagram of the structure of the slitting box of this scheme;

[0020] Figure 5 This is a schematic diagram of the structure of the crushing box of this scheme.

[0021] Among them, 1. Crushing box, 11. Crushing roller, 2. Slitting box, 21. Exhaust hole, 22. Window, 3. Thermal cutting grid, 4. Vertical frame, 5. Pressing mechanism, 51. Pressing plate, 511. Horizontal groove, 52. Lifting control assembly, 521. Connecting seat 1, 522. Push rod 1, 523. Connecting rod 1, 524. Spring, 53. Connecting seat 2, 54. Connecting rod 2, 55. Push rod 2, 56. Connecting shaft, 57. Screw, 58. Motor 2, 59. Mounting plate, 510. Motor 1. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5The plastic raw material crushing mechanism includes a crushing box 1 and a cutting box 2 located on the top of the crushing box 1. A crushing roller 11 is provided in the crushing box 1. A hot cutting grid 3 is fixed near the bottom of the cutting box 2. The hot cutting grid 3 is arranged in a grid shape. When powered on, it generates a high temperature that can melt the plastic. After passing through the hot cutting grid 3, the large piece of plastic is hot-melted and cut into small pieces. The small pieces of plastic fall into the crushing box 1 for further crushing.

[0024] An exhaust hole 21 is provided on the wall of the cutting box 2 near the hot cutting grid 3. The exhaust hole 21 is connected to a fume adsorption device through a pipeline, and the fume adsorption device is used to adsorb the fume generated during hot cutting.

[0025] See also Figure 1-Figure 3 , plastic raw material crushing mechanism, a pressing mechanism 5 is provided at the top opening of the slitting box 2, which is used to press the plastic raw material placed in the slitting box 2 downward to prompt it to pass through the hot cutting grid 3 quickly, thereby improving the cutting efficiency. The pressing mechanism 5 includes a pressing plate 51 sliding in the slitting box 2, and a lifting control component 52 is connected between the top surface of the pressing plate 51 and the vertical frame 4 fixed to the top opening of the slitting box 2. The height of the pressing plate 51 is controlled by the lifting control component 52. A window 22 for the pressing plate 51 to pass horizontally is provided on the upper side wall of the slitting box 2. When the pressing plate 51 moves to the height of the window 22, the top opening of the slitting box 2 is blocked or opened by the lateral movement of the pressing plate 51. When opened, it is convenient to feed the plastic raw material in a straight line, and it is convenient to feed large pieces or long plastic plates.

[0026] A transverse groove 511 is also provided on the top surface of the pressing plate 51. The transverse groove 511 is perpendicular to the window 22. A connecting seat 521 slides in the transverse groove 511. At the same time, a spring 524 is connected between the connecting seat 521 and the end wall of the transverse groove 511. The connecting seat 521 is connected to the lifting control component 52. When the pressing plate 51 moves laterally in the window 22, the connecting seat 521 can be kept connected to the lifting control component 52. The lifting control component 52 includes a rotating device on the stand 4. The lifting control assembly 52 is symmetrically distributed at both ends of the pressure plate 51 and is connected to the connecting seat 1 521 in the two groups of transverse grooves 511. A connecting seat 2 53 is fixed on the side of the pressure plate 51 away from the vertical frame 4. The two groups of connecting seats 2 53 correspond to the two groups of transverse grooves 511. Each group of connecting seats 2 53 is hingedly connected to a connecting rod 2 54. At the same time, the top of the connecting rod 2 54 is hingedly connected to the lifting rod 2 55. The end of the connecting shaft 56 that rotates and slides through the frame 4 is fixed to the top rod 2 55, and at the same time, the top of the top rod 1 522 is slidably sleeved on the connecting shaft 56, and the sleeve shaft fixed at the top of the top rod 1 522 is rotatably connected to the stand 4. The connecting shaft 56 slides through the sleeve shaft, and the outside of the stand 4 is connected to the mounting plate 59 through the spacing adjustment member. The motor 1 510 fixed on the mounting plate 59 is fixed to the connecting shaft 56, which is used to drive the connecting shaft 56 to rotate. When the connecting shaft 56 rotates, it will synchronously drive the top rod 1 522 and the top rod 2 55 to swing. The movement controls the upper and lower positions of the pressing plate 51, and then uses the spacing adjustment piece to pull the connecting shaft 56 to drive the pressing plate 51 to move laterally to adjust the lateral position. The spacing adjustment piece includes a screw rod 57, and the mounting plate 59 is sleeved on the vertical frame 4 through a threaded hole to be connected with the screw rod 57 rotatably installed, and the screw rod 57 is connected to the motor 2 58 fixed on the vertical frame 4. When the pressing plate 51 moves to the height of the window 22, the screw rod 57 is driven by the motor 2 58 to rotate to control the lateral displacement of the pressing plate 51, thereby realizing the control of the opening and closing of the top opening of the cutting box 2.

[0027] 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic raw material crushing mechanism, comprising a crushing box (1) and a cutting box (2) located on top of the crushing box (1), characterized in that: A heat cutting grid (3) is fixed near the bottom of the cutting box (2), and the heat cutting grid (3) is arranged in a grid shape; A pressing mechanism (5) is provided at the top opening of the slitting box (2), and the pressing mechanism (5) is used to press down the plastic raw materials placed in the slitting box (2).

2. A plastic raw material crushing mechanism according to claim 1, characterized in that: An exhaust hole (21) is provided on the wall of the cutting box (2) near the thermal cutting grid (3), and the exhaust hole (21) is connected to an external fume adsorption device through a pipeline.

3. The plastic raw material crushing mechanism according to claim 1, characterized in that: The pressing mechanism (5) comprises a pressing plate (51) sliding in the slitting box (2); a lifting control assembly (52) is connected between the top surface of the pressing plate (51) and a stand (4) fixed to the top opening of the slitting box (2); and the height of the pressing plate (51) is controlled by the lifting control assembly (52).

4. A plastic raw material crushing mechanism according to claim 3, characterized in that: A window (22) is provided on the upper side wall of the slitting box (2) for the pressing plate (51) to pass through laterally. When the pressing plate (51) moves to the height of the window (22), the top opening of the slitting box (2) is blocked or opened by the lateral movement of the pressing plate (51).

5. A plastic raw material crushing mechanism according to claim 4, characterized in that: A transverse groove (511) is also provided on the top surface of the pressing plate (51), wherein the transverse groove (511) is perpendicular to the window (22), and a connecting seat (521) is slidably provided in the transverse groove (511), wherein the connecting seat (521) is connected to the lifting control assembly (52).

6. A plastic material crushing mechanism according to claim 5, characterized in that: The lifting control assembly (52) includes a top rod (522) rotatably mounted on the stand (4) and a connecting rod (523) hingedly connected between the bottom end of the top rod (522) and a connecting seat (521).

7. A plastic material crushing mechanism according to claim 6, characterized in that: The lifting control components (52) are symmetrically distributed at both ends of the pressing plate (51) and are correspondingly connected to the connecting seat 1 (521) in the two groups of transverse grooves (511).

8. The plastic raw material crushing mechanism according to claim 5, characterized in that: A spring (524) is connected between the first connecting seat (521) and the end wall of the transverse groove (511).

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