Forming mechanism of plastic forming machine

Abstract

The utility model belongs to the technical field of plastic processing equipment, and particularly relates to a forming mechanism of a plastic forming machine, which comprises a shell, the shell comprises an upper cylinder and a lower cylinder, the top of the upper cylinder is provided with a stock bin, the lower cylinder is provided with a discharge port, the top of the lower cylinder is provided with a forming plate, the forming plate is provided with a plurality of forming holes, and the forming holes are communicated with the upper cylinder and the lower cylinder. A plurality of forming rollers are arranged above the forming plate, a cleaning brush is correspondingly arranged above each forming roller, and the cleaning brushes are used for cleaning plastic raw materials attached to forming grooves of the forming rollers. A large number of plastic raw materials are prevented from being attached into the forming grooves, and the forming grooves are difficult to press the plastic raw materials into the forming holes in the rotating process of the forming rollers, so that the forming efficiency of plastic particles is low.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing equipment, in particular to a molding mechanism of a plastic molding machine. Background Art

[0002] With the development of industry, the application of plastic products has spread to all areas of industry, agriculture and daily life, such as plastic barrels used to store liquids in industry, plastic bottles used to hold condiments such as cooking oil in daily life, beverage bottles sold in stores, etc. The amount of waste plastic products generated every day in the world is incalculable, and the pressure caused by discarded plastics on the environment is obvious. In order to deal with these plastic products without causing environmental pollution, one of the current methods is to recycle and reuse plastic products. The waste plastic raw materials are granulated and molded by the plastic molding machine, which promotes the recycling of resources. The existing plastic molding machine presses the plastic raw materials into the molding holes during the circumferential movement of the molding roller on the molding plate, thereby realizing the granulation of the plastic raw materials. In actual use, during the circumferential movement of the molding rod, due to the high-speed rotation of the molding roller, a large amount of heat is generated on the molding roller, and the plastic raw materials are easily attached to the molding groove of the molding roller. The molding groove plays an important role in the plastic molding process. During the rotation of the molding roller, the molding groove gives the plastic raw materials a downward force, squeezes the plastic raw materials into the molding holes, thereby realizing the molding of plastic particles. Therefore, if the plastic raw materials adhere to the molding groove, the plastic particle molding rate will be reduced, thereby reducing the work efficiency. Utility Model Content

[0003] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a molding mechanism of a plastic molding machine.

[0004] A molding mechanism of a plastic molding machine comprises a shell, wherein the shell comprises an upper cylinder and a lower cylinder, a material bin is provided on the top of the upper cylinder, a material discharge port is provided on the lower cylinder, a molding plate is provided on the top of the lower cylinder, a plurality of molding holes are provided on the molding plate, a plurality of molding rollers are provided above the molding plate, a cleaning brush is provided above each of the molding rollers, and the cleaning brush is used to clean the plastic raw materials attached to the molding groove of the molding roller.

[0005] Furthermore, the forming plate is rotatably connected to a driving shaft, and the driving shaft is rotatably connected to a plurality of rotating shafts in the circumferential direction, each rotating shaft is fixedly connected to a forming roller, and a plurality of forming rollers make circumferential motion on the forming plate with the driving shaft as the central axis, and the bottom of the driving shaft is connected to the transmission shaft, and the bottom of the transmission shaft extends into the base and is connected to the driving mechanism.

[0006] Furthermore, the forming groove is circumferentially arranged on the outer wall of the forming roller, and the forming groove is a through groove extending along the length direction of the forming roller.

[0007] Furthermore, a first sprocket is sleeved on the rotating shaft, the first sprocket is transmission-connected to a second sprocket via a chain, the second sprocket is sleeved on a connecting shaft, and the connecting shaft is connected to the brush roller.

[0008] Furthermore, the brush roller has bristles distributed in a spiral shape.

[0009] Furthermore, the connecting shaft is a hollow structure, and the end of the connecting shaft away from the cleaning brush is connected to the connecting seat. The top of the connecting seat is connected to the pipe through a rotating seat. The rotating seat is rotatably connected to the connecting seat, and the end of the pipe extends out of the upper cylinder and is connected to the blowing device. The pipe is communicated with the connecting shaft, and a number of corresponding ventilation holes are provided on the connecting shaft and the brush roller.

[0010] Furthermore, a cutting knife is provided on the transmission shaft, and the cutting knife is located at the bottom of the forming plate.

[0011] Furthermore, the outer periphery of the driving shaft is covered with a protective shell.

[0012] Furthermore, the bottom inner wall of the lower cylinder is an inclined surface.

[0013] Due to the adoption of the above technical scheme, the beneficial technical effect of the utility model is: in the utility model, by arranging a cleaning brush above the molding roller, the plastic raw material on the molding groove can be cleaned to prevent a large amount of plastic raw material from being attached to the molding groove. During the rotation of the molding roller, it is difficult for the molding groove to press the plastic raw material into the molding hole, resulting in low efficiency in plastic particle molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a molding mechanism of a plastic molding machine of the utility model;

[0015] Figure 2 This is a front view of a molding mechanism of a plastic molding machine of the utility model;

[0016] Figure 3 It is a schematic cross-sectional structure diagram of a molding mechanism of a plastic molding machine according to the utility model in the main viewing direction;

[0017] Figure 4 It is a structural schematic diagram of the working state of the forming mechanism in the utility model;

[0018] Figure 5 It is a structural schematic diagram of the forming mechanism in the utility model;

[0019] Figure 6 It is a top view of the forming mechanism in the utility model.

[0020] In the figure, 1, upper cylinder, 2, lower cylinder, 3, silo, 4, discharge port, 5, forming plate, 6, forming hole, 7, forming roller, 8, cleaning brush, 9, forming groove, 10, driving shaft, 11, rotating shaft, 12, transmission shaft, 14, first sprocket, 15, chain, 16, second sprocket, 17, connecting shaft, 18, brush roller, 19, bristles, 20, connecting seat, 21, rotating seat, 22, pipeline, 23, ventilation hole, 24, cutting knife, 25, inclined surface, 26, base, 27, protective shell. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0022] according to Figure 1-6 As shown, a molding mechanism of a plastic molding machine includes a shell, the shell includes an upper cylinder 1 and a lower cylinder 2, the top of the upper cylinder 1 is provided with a silo 3, the lower cylinder 2 is provided with a discharge port 4, the top of the lower cylinder 2 is provided with a molding plate 5, the molding plate 5 is provided with a plurality of molding holes 6, a plurality of molding rollers 7 are provided above the molding plate 5, a cleaning brush 8 is correspondingly provided above each of the molding rollers 7, and the cleaning brush 8 is used to clean the plastic raw material attached to the molding groove 9 of the molding roller 7.

[0023] In the above specific embodiment, by arranging a cleaning brush 8 above the molding roller 7, the plastic raw material on the molding groove 9 can be cleaned to prevent a large amount of plastic raw material from being attached to the molding groove 9. During the rotation of the molding roller 7, it is difficult for the molding groove 9 to press the plastic raw material into the molding hole 6, resulting in low efficiency in plastic particle molding.

[0024] The forming plate 5 is rotatably connected to a driving shaft 10, and the driving shaft 10 is rotatably connected to a plurality of rotating shafts 11 in the circumferential direction. A forming roller 7 is fixedly connected to each of the rotating shafts 11. The plurality of forming rollers move circumferentially on the forming plate 5 with the driving shaft 10 as the central axis. The bottom of the driving shaft 10 is connected to a transmission shaft 12, and the bottom of the transmission shaft 12 extends into a base 26 and is connected to a driving mechanism.

[0025] The drive shaft 12 is driven to rotate by the driving mechanism, thereby rotating the driving shaft 10, causing the forming roller 7 to roll circumferentially with the driving shaft 10 as the central axis, and the plastic raw material is pressed into the forming hole 6 during the rolling process. It is worth noting that the driving mechanism is a prior art and will not be described in detail here.

[0026] The molding groove 9 is circumferentially arranged on the outer wall of the molding roller. The molding groove 9 is a through groove extending along the length direction of the molding roller 7. During the rotation of the molding roller 7, the molding groove 9 has the function of passing the plastic raw material and providing a downward extrusion force to the plastic raw material, so that the plastic raw material enters the molding hole 6.

[0027] The rotating shaft 11 is sleeved with a first sprocket 14, which is transmission-connected to the second sprocket 16 through a chain 15, and the second sprocket 16 is sleeved on a connecting shaft 17, which is connected to a brush roller 18, and the brush roller 18 is spirally distributed with bristles 19, which drives the forming roller 7 to perform circumferential motion through the driving shaft 10. During the circumferential motion, the forming roller 7 rotates around the rotating shaft 11 as the central axis under the friction with the plastic raw material, thereby driving the rotating shaft 11 to rotate, and the first sprocket 14 is rotated by the rotation of the rotating shaft 11, and the first sprocket 14 is transmission-connected to the second sprocket 16 through a chain 15, and the second sprocket 16 is connected to a cleaning brush 8, thereby realizing the rotation of the cleaning brush 8, and the cleaning brush 8 cleans the plastic raw material attached to the molding groove 9 by rotation, which is beneficial to improving the molding rate of plastic particles. In addition, the bristles 19 are spirally distributed, which is beneficial to cleaning the plastic raw material in the molding groove 9 along the groove wall toward the end.

[0028] The connecting shaft 17 is a hollow structure, and one end of the connecting shaft 17 away from the cleaning brush 8 is connected to the connecting seat 20. The top of the connecting seat 20 is connected to the pipe 22 through the rotating seat 21. The rotating seat 21 is rotatably connected to the connecting seat 20. The end of the pipe 22 extends out of the upper cylinder 1 and is connected to the blowing device. The pipe 22 is communicated with the connecting shaft 17. The connecting shaft 17 and the brush roller 18 are provided with a corresponding number of ventilation holes 23. The wind is passed through the pipe 22, the rotating seat 21, the connecting seat 20, and the connecting shaft 17 in sequence through the blowing device into the brush roller 18, and is blown out through the ventilation holes 23 on the brush roller 18 and the connecting shaft 17, so as to cool the molding roller 7 and prevent the molding roller 7 from being overheated and the plastic raw materials from adhering to the molding groove 9 and affecting the granulation efficiency.

[0029] The transmission shaft 12 is provided with a cutting knife 24 , and the cutting knife 24 is located at the bottom of the forming plate 5 . The cutting knife 24 is driven by the transmission shaft 12 to rotate around the transmission shaft 12 as the central axis, thereby cutting off the plastic particles.

[0030] The outer periphery of the driving shaft 10 is covered with a protective shell 27 to prevent the plastic material from affecting the transmission of the sprocket chain 15 mechanism.

[0031] The bottom inner wall of the lower cylinder 2 is an inclined surface 25 , which is beneficial for the formed plastic particles to fall from the discharge port 4 .

[0032] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A molding mechanism of a plastic molding machine, comprising a housing, characterized in that: The outer shell comprises an upper cylinder (1) and a lower cylinder (2), the top of the upper cylinder (1) is provided with a material bin (3), the lower cylinder (2) is provided with a material outlet (4), the top of the lower cylinder (2) is provided with a molding plate (5), the molding plate (5) is provided with a plurality of molding holes (6), a plurality of molding rollers (7) are provided above the molding plate (5), and a cleaning brush (8) is correspondingly provided above each molding roller (7), and the cleaning brush (8) is used to clean the plastic raw material attached to the molding groove (9) of the molding roller (7).

2. A molding mechanism of a plastic molding machine according to claim 1, characterized in that: The molding plate (5) is rotatably connected to a driving shaft (10), and the driving shaft (10) is rotatably connected to a plurality of rotating shafts (11) in the circumferential direction. Each rotating shaft (11) is fixedly connected to a molding roller (7). The plurality of molding rollers move circumferentially on the molding plate (5) with the driving shaft (10) as the central axis. The bottom of the driving shaft (10) is connected to a transmission shaft (12), and the bottom of the transmission shaft (12) extends into a base (26) and is connected to a driving mechanism.

3. A molding mechanism for a plastic molding machine according to claim 2, characterized in that: The molding groove (9) is circumferentially arranged on the outer wall of the molding roller, and the molding groove (9) is a through groove extending along the length direction of the molding roller (7).

4. A molding mechanism for a plastic molding machine according to claim 3, characterized in that: The rotating shaft (11) is sleeved with a first sprocket (14), the first sprocket (14) is transmission-connected to a second sprocket (16) via a chain (15), the second sprocket (16) is sleeved on a connecting shaft (17), and the connecting shaft (17) is connected to a brush roller (18).

5. A molding mechanism for a plastic molding machine according to claim 4, characterized in that: The brush roller (18) has bristles (19) distributed in a spiral shape.

6. A molding mechanism for a plastic molding machine according to claim 5, characterized in that: The connecting shaft (17) is a hollow structure. One end of the connecting shaft (17) away from the cleaning brush (8) is connected to the connecting seat (20). The top of the connecting seat (20) is connected to the pipe (22) via a rotating seat (21). The rotating seat (21) is rotatably connected to the connecting seat (20). The end of the pipe (22) extends out of the upper cylinder (1) and is connected to the blowing device. The pipe (22) is in communication with the connecting shaft (17). A plurality of corresponding ventilation holes (23) are provided on the connecting shaft (17) and the brush roller (18).

7. A molding mechanism for a plastic molding machine according to claim 6, characterized in that: The transmission shaft (12) is provided with a cutting knife (24), and the cutting knife (24) is located at the bottom of the forming plate (5).

8. A molding mechanism for a plastic molding machine according to claim 7, characterized in that: The outer periphery of the driving shaft (10) is covered with a protective shell (27).

9. A molding mechanism for a plastic molding machine according to claim 8, characterized in that: The inner wall of the bottom of the lower cylinder (2) is an inclined surface (25).

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