An apparatus for manufacturing plastic particles

Abstract

The utility model relates to belong to the technical field of plastic particle production, disclose a kind of manufacturing device for plastic particle. The manufacturing device for plastic particle, it includes: granulator body and cleaning mechanism, the scraper is arranged on the bottom end side wall of mounting bracket, the brush plate is bolted on the side wall above of mounting bracket by bolt, the brush plate is above the scraper, and brush plate and mounting bracket do not contact each other, the end of the scraper is slidably connected with the blade cutting edge side wall, by being arranged on the cleaning mechanism of tool rest, the molten plastic residue adhered to the blade side wall can be effectively removed, when blade turns to a circle and passes through cleaning mechanism, the scraper and brush plate inside cleaning mechanism are extruded by blade rotation, so that the end of scraper and brush plate and the cutting edge side wall of blade are closely in contact, in the process of blade rotation, the plastic melt adhered to the blade side wall is scraped by scraper and brush plate, avoid plastic melt solidification hardening in the blade side wall, influence blade to subsequent plastic melt and carry out cutting.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle production technology, and in particular to a manufacturing apparatus for plastic particles. Background Technology

[0002] Plastic pellets, also known as plastic granules, are raw materials used for storing, transporting, and processing plastics in a semi-finished form. A pelletizing machine is required to manufacture plastic pellets. Hot-cutting granulators are commonly used equipment in this field. Their working principle is as follows: molten plastic is extruded from the die hole at the end of the extruder die and is then cut by a high-speed rotating cutter at the moment of contact with the die end face to form granules. When processing plastic raw materials with high viscosity and high melt index, the high strength and viscosity of the thermoplastic melt at the processing temperature make it easy for the high-temperature plastic melt to adhere to the surface of the cutting blade when it comes into contact with the metal surface of the cutting blade during the extrusion process. Plastic particles solidify on the side wall of the cutting blade, thus affecting the cutting blade's ability to cut subsequent plastic melt. Utility Model Content

[0003] Therefore, it is necessary to provide an apparatus for manufacturing plastic particles to address the problem that, when processing plastic raw materials with high viscosity and high melt index, the high-temperature plastic melt easily adheres to the surface of the cutting blade when it comes into contact with the metal surface of the cutting blade during the extrusion process, and the plastic particles solidify on the side wall of the cutting blade, affecting the cutting blade's ability to cut subsequent plastic melt.

[0004] An apparatus for manufacturing plastic particles includes: a pelletizer body, which consists of a melting cylinder and a template, the template being disposed at the front end of the discharge port at the end of the melting cylinder, a blade holder being disposed outside the template, and blades for cutting the plastic melt being disposed on the side wall of the blade holder facing the template. A cleaning mechanism is installed on the side wall of the blade holder facing the template and located inside the blade. The cleaning mechanism includes a scraper and a brush. The scraper is installed on the bottom side wall of the mounting frame. The brush is bolted to the upper side wall of the mounting frame by bolts. The brush is located above the scraper and does not contact the mounting frame. The end of the scraper is slidably connected to the side wall of the blade edge.

[0005] Preferably, the bristles inside the scraper and brush are made of polyurethane.

[0006] Preferably, the mounting bracket is movably disposed inside the movable frame, the back sidewall of the movable frame is connected to the connecting rod, and the other end of the connecting rod is provided with an adaptive component.

[0007] Preferably, the adaptive component includes an adaptive spring disposed inside the fixed cylinder, and one end of the connecting rod passes through the side wall of the fixed cylinder and is connected to the end of the adaptive spring.

[0008] Preferably, the blade holder has a mounting groove on the side wall where the blade rotates to the cutting edge direction, and the fixing cylinder is placed inside the mounting groove.

[0009] Preferably, the diameter of the end of the connecting rod located inside the fixed cylinder is larger than the diameter of the other end of the connecting rod connected to the movable frame, and the connecting rod is slidably connected to the side wall of the fixed cylinder.

[0010] Preferably, the preload of the adapting spring makes the end of the scraper flush with the rotating surface of the tool holder.

[0011] Preferably, the mounting bracket is provided with a rotating shaft on the side wall facing the movable frame. The rotating shaft is rotatably disposed inside the movable frame. A tightening bolt is threadedly connected to one side outer wall of the movable frame. The end of the tightening bolt is provided with a butt. The butt tightly abuts against the end of the rotating shaft provided on the side wall of the mounting bracket.

[0012] Preferably, the end of the rotating shaft on the side wall of the mounting bracket is provided with a groove, and the inner wall of the groove is provided with multiple anti-slip protrusions, and the abutment at the end of the tightening bolt is in close contact with the inner wall of the groove.

[0013] Preferably, the melting cylinder is positioned above the support, and the side wall of the support is provided with a granulator main unit for driving the melting cylinder to convey raw materials.

[0014] Beneficial technical effects: 1. The above-mentioned manufacturing device can effectively remove molten plastic residues adhering to the side wall of the blade through the cleaning mechanism set on the blade holder. When the blade rotates through the cleaning mechanism, the scraper and brush inside the cleaning mechanism are squeezed by the rotation of the blade, so that the ends of the scraper and brush are in close contact with the side wall of the blade. During the rotation of the blade, the scraper and brush scrape off the molten plastic adhering to the side wall of the blade, so as to prevent the molten plastic from solidifying and hardening on the side wall of the blade, which would affect the blade's ability to cut subsequent molten plastic.

[0015] 2. The above-mentioned manufacturing device can rotate inside the movable frame by setting the mounting bracket, so that the worker can adjust the cleaning angle of the scraper and brush according to the wear degree of the blade or the angle of the blade edge, ensuring that the scraper and brush are in close contact with the side wall of the blade edge, thereby improving the cleaning effect of the plastic melt adhering to the side wall of the blade. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

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

[0018] Figure 2 This is a schematic diagram of the position and structure of the scraper and brush plate of this utility model.

[0019] Figure 3 This is a schematic diagram of the disassembled scraper and brush plate structure of this utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the mounting frame and the movable frame of this utility model.

[0022] Reference numerals: 100, granulator body; 101, support frame; 102, granulator main unit; 103, melting cylinder; 104, template; 105, blade holder; 106, blade; 107, mounting groove; 200, cleaning mechanism; 201, scraper; 202, brush; 203, mounting frame; 204, fixing cylinder; 205, adapting spring; 206, connecting rod; 207, moving frame; 208, clamping bolt; 209, groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The following is combined with Figures 1-5 This invention describes an apparatus for manufacturing plastic particles.

[0025] Detailed Description: A manufacturing apparatus for plastic particles includes: a pelletizer body 100, which consists of a melting cylinder 103 and a template 104. The template 104 is disposed at the front end of the discharge port at the end of the melting cylinder 103. A blade holder 105 is disposed on the outside of the template 104. A blade 106 for cutting the plastic melt is disposed on the side wall of the blade holder 105 facing the template 104. The melting cylinder 103 is disposed above a support 101. A pelletizer host 102 for driving the melting cylinder 103 to convey raw materials is disposed on the side wall of the support 101.

[0026] The granulator body 100 in this application may be of model HZ-150.

[0027] The cleaning mechanism 200 in this application is installed on the side wall of the blade holder 105 inside the granulator body 100 of the above model, and is located between the blade 106 and the blade holder 105, so as not to affect the normal use of the blade 106.

[0028] like Figure 2 As shown, the cleaning mechanism 200 is set on the side wall of the blade holder 105 facing the template 104 and located inside the blade 106. The cleaning mechanism 200 includes a scraper 201 and a brush 202. The scraper 201 is set on the bottom side wall of the mounting bracket 203. The brush 202 is bolted to the upper side wall of the mounting bracket 203. The brush 202 is located above the scraper 201 and does not contact the mounting bracket 203. The end of the scraper 201 is slidably connected to the inner blade side wall of the blade 106. The bristles inside the scraper 201 and the brush 202 are both made of polyurethane material.

[0029] In this embodiment, when the blade 106 rotates, the blade 106 will periodically sweep across the cleaning mechanism 200. The end of the scraper 201 directly slides into contact with the inner cutting edge of the blade 106 to scrape off the plastic solidified block that is adhered to it. The brush 202 then performs a secondary cleaning. The polyurethane material has both wear resistance and a certain degree of elasticity, which can effectively remove residues without scratching the surface of the blade 106.

[0030] like Figure 3 and Figure 4 As shown, the mounting bracket 203 is movably disposed inside the movable bracket 207. The back sidewall of the movable bracket 207 is connected to the connecting rod 206. The other end of the connecting rod 206 is provided with an adaptive component, which includes an adaptive spring 205. The adaptive spring 205 is disposed inside the fixed cylinder 204. One end of the connecting rod 206 passes through the sidewall of the fixed cylinder 204 and is connected to the end of the adaptive spring 205. The blade holder 105 has a mounting groove 107 on the sidewall where the blade 106 rotates to the blade edge direction. The fixed cylinder 204 is placed inside the mounting groove 107.

[0031] In this embodiment, the fixing cylinder 204 is embedded in the mounting groove 107 of the blade holder 105. The adaptation spring 205 inside the fixing cylinder 204 applies a continuous outward preload force to the moving frame 207 and the mounting frame 203 through the connecting rod 206. Under the action of the spring force, the scraper 201 can always be in close contact with the surface of the blade 106, thereby ensuring the cleaning of the plastic solidified block adhering to the surface of the blade 106.

[0032] like Figure 4 As shown, the diameter of the end of the connecting rod 206 located inside the fixed cylinder 204 is larger than the end of the connecting rod 206 that is connected to the movable frame 207, and the connecting rod 206 is slidably connected to the side wall of the fixed cylinder 204. In this embodiment, the diameter of one end of the connecting rod 206 inside the fixed cylinder 204 is larger than the diameter of the other end, which prevents the connecting rod 206 from completely dislodging from the fixed cylinder 204 under the action of spring force, thus ensuring the stability of the adaptive component during movement.

[0033] like Figure 3 As shown, the preload of the spring 205 is adjusted so that the end of the scraper 201 is flush with the rotating surface of the tool holder 105.

[0034] In this embodiment, the preload of the adapting spring 205 ensures that the cutting edge of the scraper 201 can be precisely aligned with the rotating working surface of the blade 106 during initial installation or non-working state. When the blade 106 rotates at high speed, the blade 106 meets the flush scraper 201, and the scraper 201 scrapes and cleans the solidified plastic block adhering to the side wall of the blade 106.

[0035] like Figure 4 and Figure 5 As shown, a rotating shaft is provided on the side wall of the mounting bracket 203 facing the movable bracket 207. The rotating shaft is rotatably disposed inside the movable bracket 207. A tightening bolt 208 is threadedly connected to the outer side wall of one side of the movable bracket 207. The end of the tightening bolt 208 is provided with a butt. The butt is in close contact with the end of the rotating shaft provided on the side wall of the mounting bracket 203. A groove 209 is provided at the end of the rotating shaft provided on the side wall of the mounting bracket 203. Multiple anti-slip protrusions are provided on the inner wall of the groove 209. The butt at the end of the tightening bolt 208 is in close contact with the inner wall of the groove 209.

[0036] In this embodiment, the mounting bracket 203 can rotate around the pivot inside the movable bracket 207, thereby adjusting the angle of the scraper 201 and brush 202 relative to the blade 106. This allows the scraper 201 and brush 202 to be adapted to different blade 106 cutting angles, or to adjust the angle of the scraper 201 and brush 202 when the blade 106 is excessively worn, ensuring that the scraper 201 and brush 202 are in close contact with the sidewall of the blade 106 cutting edge, thus ensuring the cleaning effect.

[0037] Once the angle is adjusted to the correct position, tighten the clamping bolt 208. The end of the bolt will press tightly into the groove 209 at the end of the rotating shaft. The anti-slip protrusions on the inner wall of the groove 209 increase the friction and effectively prevent the stability of the mounting bracket 203 under equipment vibration.

[0038] Working principle: During operation, the granulator host 102 drives the melting cylinder 103 to work, and the extruded plastic melt is cut into granules by the high-speed rotating blade 106.

[0039] During this process, as the blade 106 rotates, it periodically passes through the cleaning mechanism 200. When the blade 106 rotates to the cleaning mechanism 200, the scraper 201 remains flush with the rotating surface of the blade 106 under the preload of the adapting spring 205. The scraper 201 scrapes the solidified plastic blocks on the inner blade sidewall of the blade 106, removing most of the adhering substances. The brush 202 then performs supplementary cleaning to ensure that the blade 106 is clean. The entire cleaning process is completed automatically and continuously during equipment operation without the need to stop the machine for cleaning.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An apparatus for manufacturing plastic particles, characterized in that, include: The granulator body (100) consists of a melting cylinder (103) and a template (104). The template (104) is located at the front end of the discharge port at the end of the melting cylinder (103). A blade holder (105) is provided on the outside of the template (104). A blade (106) for cutting the plastic melt is provided on the side wall of the blade holder (105) facing the template (104). A cleaning mechanism (200) is provided on the side wall of the blade holder (105) facing the template (104) and located at the blade (106). Inside the cleaning mechanism (200) of the 106, the cleaning mechanism (200) includes a scraper (201) and a brush (202). The scraper (201) is disposed on the bottom side wall of the mounting bracket (203). The brush (202) is bolted to the upper side wall of the mounting bracket (203). The brush (202) is located above the scraper (201) and the brush (202) does not contact the mounting bracket (203). The end of the scraper (201) is slidably connected to the inner blade side wall of the blade (106).

2. The apparatus for manufacturing plastic particles according to claim 1, characterized in that, The bristles inside both the scraper (201) and the brush (202) are made of polyurethane.

3. The apparatus for manufacturing plastic particles according to claim 2, characterized in that, The mounting bracket (203) is movably disposed inside the movable bracket (207). The back sidewall of the movable bracket (207) is connected to the connecting rod (206), and the other end of the connecting rod (206) is provided with an adaptive component.

4. The apparatus for manufacturing plastic particles according to claim 3, characterized in that, The adaptive component includes an adaptive spring (205) disposed inside the fixed cylinder (204), and one end of the connecting rod (206) passes through the side wall of the fixed cylinder (204) and is connected to the end of the adaptive spring (205).

5. The apparatus for manufacturing plastic particles according to claim 4, characterized in that, The blade holder (105) has a mounting groove (107) on the side wall where the blade (106) is turned to the blade edge. The fixing cylinder (204) is placed inside the mounting groove (107).

6. The apparatus for manufacturing plastic particles according to claim 5, characterized in that, The diameter of the end of the connecting rod (206) inside the fixed cylinder (204) is larger than the end of the connecting rod (206) connected to the movable frame (207), and the connecting rod (206) is slidably connected to the side wall of the fixed cylinder (204).

7. The apparatus for manufacturing plastic particles according to claim 6, characterized in that, The preload of the adaptation spring (205) makes the end of the scraper (201) flush with the rotating surface of the tool holder (105).

8. The apparatus for manufacturing plastic particles according to claim 1, characterized in that, The mounting bracket (203) has a rotating shaft on its side wall facing the movable bracket (207). The rotating shaft is rotatably disposed inside the movable bracket (207). A tightening bolt (208) is threadedly connected to one side outer wall of the movable bracket (207). The end of the tightening bolt (208) is provided with a butt, which is in close contact with the end of the rotating shaft on the side wall of the mounting bracket (203).

9. An apparatus for manufacturing plastic particles according to claim 8, characterized in that, The end of the rotating shaft on the side wall of the mounting bracket (203) is provided with a groove (209). The inner wall of the groove (209) is provided with multiple anti-slip protrusions. The abutment at the end of the tightening bolt (208) is in close contact with the inner wall of the groove (209).

10. An apparatus for manufacturing plastic particles according to claim 1, characterized in that, The melting cylinder (103) is positioned above the support (101), and the side wall of the support (101) is provided with a granulator main unit (102) for driving the melting cylinder (103) to convey raw materials.

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