A plastic particle anti-blocking cutting device

Abstract

The utility model discloses a kind of plastic particle anti-adhesion cutting equipment, it is related to plastic production technical field, including plastic extrusion cylinder, the precooling assembly butting in the output end of plastic extrusion cylinder, the cutting unit fixedly connected in the end of precooling assembly, the protection unit fixedly connected in the outside of cutting unit, the extrusion die butting in the front of cutting unit and with the output end connection of precooling assembly, the material guiding assembly fixedly connected in the bottom of protection unit;Precooling assembly, including the sleeve body butting in the output end of plastic extrusion cylinder.The beneficial effects of the utility model are: through precooling assembly, the equipment can be pre-cooled to the extruded plastic, make plastic can be pre-cooled before discharging, utilize to reduce the degree of adhesion when plastic is discharged by reducing heat, pre-cooled liquid can also be guided to plastic outlet, further complete the cooling of plastic, so that cutting unit can avoid the situation of adhesion during cutting.

Description

Technical Field

[0001] This utility model relates to the field of plastic production technology, specifically a plastic particle anti-adhesion cutting device. Background Technology

[0002] In the production of plastic granules, it is usually necessary to process molten plastic into uniform small granules through a cutting (granulation) step to facilitate transportation, storage and subsequent processing such as injection molding and blow molding;

[0003] Currently, the most common cutting method is hot cutting (molten state cutting), which means that after the plastic is extruded from the extruder die, it is directly cut by a rotating blade in a high-temperature molten state;

[0004] Although this method is simple and efficient, it suffers from particle adhesion, resulting in the following technical defects in actual production:

[0005] 1. Existing hot cutting processes typically involve cutting directly in a fully molten state of plastic without pre-cooling measures. This results in the plastic remaining in a high-temperature softened state during cutting, making it easy for particles to stick together. Currently, some improvement solutions only cool the particles after cutting (such as water cooling or air cooling), but they cannot fundamentally solve the problem of high-temperature adhesion at the moment of cutting.

[0006] 2. During the cutting process, molten plastic may splash or adhere to the area around the cutting zone during high-speed rotating blade cutting, leading to equipment contamination or even mechanical failure, and failing to provide adequate protection for the cutting area.

[0007] Therefore, an improved plastic granule anti-sticking cutting device is needed. Utility Model Content

[0008] The purpose of this invention is to provide a plastic granule anti-adhesion cutting device to solve the problems raised in the prior art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a plastic granule anti-adhesion cutting device, comprising: a plastic extrusion cylinder, a pre-cooling component connected to the output end of the plastic extrusion cylinder, a cutting unit fixed to the end of the pre-cooling component, a protective unit fixed to the outside of the cutting unit, an extrusion die head connected to the front of the cutting unit and connected to the output end of the pre-cooling component, and a material guiding component fixed to the bottom of the protective unit; the pre-cooling component includes an outer sleeve connected to the output end of the plastic extrusion cylinder, an inner tube connected to the outer sleeve and communicating with the plastic extrusion cylinder, a spiral cooling pipe fitted on the inner tube, a guide pipe connected to the bottom end of the spiral cooling pipe, an annular pipe fitted on the extrusion die head and connected to the guide pipe, and a liquid outlet head connected to the annular pipe; the cutting unit includes a mounting plate connected to the end of the outer sleeve and a cutting blade connected to the front of the outer sleeve; the material guiding component includes a collection trough connected to the bottom of the protective unit and a filter screen plate fixed to the bottom of the collection trough.

[0010] As a preferred embodiment, the material guiding assembly also includes an outlet channel and a drain connector. The drain connector is fixedly installed at the bottom of the collection channel and is connected to the filter screen. The outlet channel is fixedly installed at the end of the collection channel.

[0011] As a preferred option, the cutting unit also includes a motor, which is fixedly mounted on the back of the mounting plate. The output end of the motor is connected to the cutting blade, and the mating point of the cutting blade is located on one side of the extrusion die.

[0012] As a preferred embodiment, the precooling assembly also includes an upper switching valve, a threaded connector, and a lower switching valve. A threaded connector that penetrates the outer casing is connected to the mounting plate, and the end of the threaded connector is connected to the plastic extrusion cylinder. The bottom of the spiral cooling pipe is connected to the lower switching valve, and the port of the lower switching valve is connected to the guide pipe. The top of the spiral cooling pipe is connected to the upper switching valve.

[0013] As a preferred embodiment, the protective unit includes a mounting block, a side plate, and a front panel. The front panel is fixedly mounted on the top of the mounting block, and the mounting block and the side plate are fixedly mounted on the bottom of the front panel. The bottom of the mounting block and the side plate are fixedly connected to the top of the collection tank.

[0014] As a preferred embodiment, the top of the extrusion die is provided with three sets of guide ports, and the guide ports correspond to the ports of the liquid outlet head.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The pre-cooling component allows the equipment to pre-cool the extruded plastic, enabling the plastic to be pre-cooled before discharge, thereby reducing the heat of the plastic. This heat reduction reduces the stickiness of the plastic during discharge, mitigating the high-temperature sticking problem during cutting. Furthermore, during cutting, the pre-cooled liquid can be guided to the plastic outlet to further cool the plastic, thus preventing sticking during the cutting unit.

[0017] The protective unit isolates and protects the cutting area, preventing plastic from splashing or adhering around the cutting area and avoiding injury to personnel from the cutting equipment during operation.

[0018] The feeding assembly receives both the cut plastic granules and the falling cooling water, and after collection, separates the plastic granules from the cooling water, ensuring that the plastic granules can be directly discharged while the cooling water can be recycled. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly structure of the plastic granule anti-adhesion cutting equipment of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the plastic granule anti-adhesion cutting device of this utility model;

[0021] Figure 3 This is a schematic diagram of the protective unit structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the glass display unit structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the toggle plate receiving groove in this utility model.

[0024] Figure label:

[0025] 100. Protective unit; 101. Mounting block; 102. Side plate; 103. Panel;

[0026] 200. Feeding assembly; 201. Outlet channel; 202. Filter screen; 203. Collection tank; 204. Drain connector;

[0027] 300. Cutting unit; 301. Motor; 302. Cutting disc; 303. Mounting plate;

[0028] 400. Pre-cooling assembly; 401. Outer casing; 402. Upper switch valve; 403. Threaded connection; 404. Lower switch valve; 405. Guide tube; 406. Annular tube; 407. Liquid outlet; 408. Spiral cooling tube; 409. Inner tube body;

[0029] 500. Plastic extrusion cylinder;

[0030] 600, Extrusion die; 601, Flow guide. Detailed Implementation

[0031] 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.

[0032] Example: This utility model provides a technical solution for a plastic granule anti-adhesion cutting device, such as... Figures 1-5 As shown, it includes: a plastic extrusion cylinder 500, a pre-cooling assembly 400 connected to the output end of the plastic extrusion cylinder 500, a cutting unit 300 fixed to the end of the pre-cooling assembly 400, a protective unit 100 fixed to the outside of the cutting unit 300, an extrusion die 600 connected to the front of the cutting unit 300 and connected to the output end of the pre-cooling assembly 400, and a material guiding assembly 200 fixed to the bottom of the protective unit 100.

[0033] In the above scheme:

[0034] The plastic inside the extruder is extruded through the plastic extrusion cylinder 500 and then through the extrusion die 600.

[0035] The cutting unit 300 can quickly cut the plastic extruded from the extrusion die 600, making the extruded material into granules.

[0036] The pre-cooling component 400 enables the equipment to pre-cool the extruded plastic, allowing the plastic to be pre-cooled before discharge, thereby reducing the heat of the plastic. This heat reduction reduces the stickiness of the plastic during discharge. Furthermore, during cutting, the pre-cooled liquid can be directed to the plastic outlet to further cool the plastic, thus preventing sticking during cutting.

[0037] The protective unit 100 isolates and protects the cutting area to prevent the cutting equipment from causing injury to personnel during operation.

[0038] The feeding assembly 200 can receive the cut plastic granules and the falling cooling water, and after collection, separate the plastic granules from the cooling water, ensuring that the plastic granules can be directly discharged while the cooling water can be recycled.

[0039] The precooling assembly 400 includes an outer casing 401 connected to the output end of the plastic extrusion cylinder 500, an inner tube 409 connected to the outer casing 401 and communicating with the plastic extrusion cylinder 500, a spiral cooling tube 408 fitted on the inner tube 409, a guide tube 405 connected to the bottom end of the spiral cooling tube 408, an annular tube 406 fitted on the extrusion die 600 and connected to the guide tube 405, and a liquid outlet head 407 connected to the annular tube 406; the cutting unit 300 includes a mounting plate 303 connected to the end of the outer casing 401 and a cutting blade 302 connected to the front of the outer casing 401; the material guiding assembly 200 includes a collection trough 203 connected to the bottom of the protection unit 100 and a filter screen plate 202 fixed to the bottom of the collection trough 203.

[0040] During daily operations:

[0041] The plastic inside the extruder is extruded through the plastic extrusion cylinder 500 and enters the inner tube 409. At this time, cooling water is injected into the plastic extrusion cylinder 500 to pre-cool the plastic raw material in the inner tube 409. This pre-cooling requires the cooling water to maintain its own cooling temperature. Non-low temperature water is used, which only needs to reduce the temperature of the plastic to a certain extent before extrusion to reduce the adhesion of the plastic. Then the plastic raw material is discharged through the extrusion die 600 and cut into granules by the cutting blade 302 under high-speed rotation. During the cutting, the cooling water in the spiral cooling pipe 408 enters the annular pipe 406 through the guide pipe 405. Finally, the liquid outlet 407 on the annular pipe 406 guides the liquid to the discharge surface of the extrusion die 600 to avoid adhesion during cutting. Finally, the cut granules and water fall into the collection tank 203. During discharge, the material and liquid are separated by the filter screen 202.

[0042] like Figure 4 As shown, in order to enable the material guiding assembly 200 to successfully complete the material-liquid separation, the material guiding assembly 200 further includes an outlet groove 201 and a drain connector 204. The bottom of the collection groove 203 is fixedly installed with the drain connector 204, and the drain connector 204 is correspondingly connected to the filter screen plate 202. The end of the collection groove 203 is fixedly installed with the outlet groove 201.

[0043] Specifically, after the particles in the collection tank 203 are collected, they will be discharged due to the inclined effect of the bottom surface inside the collection tank 203. When they reach the end, the cooling water in the plastic particles will be intercepted by the filter screen 202 and enter the drain connector 204 for separation and discharge.

[0044] The plastic particles will then enter the discharge channel 201 and be discharged through the inclined surface of the discharge channel 201.

[0045] like Figure 3 As shown, in order to enable the cutting unit 300 to complete the automated cutting operation of plastic, the cutting unit 300 further includes a motor 301. The motor 301 is fixedly installed on the back of the mounting plate 303. The output end of the motor 301 is connected to the cutting blade 302. The mating part of the cutting blade 302 is located on one side of the extrusion die head 600.

[0046] Specifically, during the process, the motor 301 is started, and the output end of the motor 301 drives the cutting blade 302 to rotate. The cutting surface of the cutting blade 302 is close to the front of the extrusion die 600. As the cutting blade 302 rotates, it cuts the plastic product discharged from the extrusion die 600 to form the required plastic granules.

[0047] like Figure 4 and Figure 5 As shown, in order to enable the pre-cooling assembly 400 to better control the cooling effect, the pre-cooling assembly 400 further includes an upper switching valve 402, a threaded connector 403, and a lower switching valve 404. The threaded connector 403, which connects to and penetrates the outer casing 401, is mounted on the mounting plate 303, and the end of the threaded connector 403 is mounted to the plastic extrusion cylinder 500. The bottom of the spiral cooling pipe 408 is mounted to the lower switching valve 404, and the port of the lower switching valve 404 is mounted to the guide pipe 405. The top of the spiral cooling pipe 408 is mounted to the upper switching valve 402.

[0048] Specifically, cooling water is injected into the spiral cooling pipe 408 by connecting the external cooling pipe to the upper switch valve 402. At this time, the personnel can manually adjust the upper switch valve 402 to control the inflow of cooling water, and similarly, manually adjust the lower switch valve 404 to control the outflow of cooling water, thereby controlling the inflow and outflow of cooling water in the spiral cooling pipe 408 and controlling the cooling effect.

[0049] The threaded connector 403 refers to the threaded connector rod. Multiple sets of threaded connector rods are used to connect the mounting plate 303 and the outer sleeve 401 together to install the plastic extrusion cylinder 500, thus completing the fixation.

[0050] like Figure 3 As shown, in order to enable the protective unit 100 to protect the cutting area, the protective unit 100 further includes a mounting block 101, a side plate 102, and a front panel 103. The front panel 103 is fixedly mounted on the top of the mounting plate 103, and the mounting block 101 and the side plate 102 are fixedly mounted on the bottom of the front panel 103 respectively. The bottom of the mounting block 101 and the side plate 102 are fixedly connected to the top of the collection groove 203.

[0051] Specifically, the cutting area of ​​the cutting blade 302 can be protected and isolated by the cooperation between the side plate 102 and the panel 103, so as to avoid the cutting blade 302 from affecting the outside when rotating; the mounting block 101 is used to fix it, and the side plate 102 and the panel 103 can also form a hoisting mechanism for the collection tank 203.

[0052] Furthermore, the top of the extrusion die 600 is provided with three sets of guide ports 601, and the guide ports 601 correspond to the ports of the liquid outlet head 407.

[0053] Specifically, during the cutting process, cooling water flows out through the outlet head 407. It is worth noting that the cooling water discharged from the outlet head 407 is not sprayed out but flows out slowly, ensuring that the guide port 601 can receive the cooling water discharged from the outlet head 407. In this way, the cooling water will soak the front of the extrusion die 600 and finally collect at the bottom of the extrusion die 600 and drip down. This can provide secondary cooling for the plastic during cutting and increase the curing effect. In addition, the cooling water needs to maintain its own cooling temperature and uses non-low temperature water. It only needs to reduce the temperature of the plastic to a certain extent before extrusion.

[0054] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A plastic granule anti-adhesion cutting device, characterized in that, include: A plastic extrusion cylinder (500), a pre-cooling assembly (400) connected to the output end of the plastic extrusion cylinder (500), a cutting unit (300) fixed to the end of the pre-cooling assembly (400), a protective unit (100) fixed to the outside of the cutting unit (300), an extrusion die (600) connected to the front of the cutting unit (300) and connected to the output end of the pre-cooling assembly (400), and a material guide assembly (200) fixed to the bottom of the protective unit (100). The precooling assembly (400) includes an outer shell (401) connected to the output end of the plastic extrusion cylinder (500), an inner tube (409) connected to the outer shell (401) and communicating with the plastic extrusion cylinder (500), a spiral cooling tube (408) fitted on the inner tube (409), a guide tube (405) connected to the bottom end of the spiral cooling tube (408), an annular tube (406) fitted on the extrusion die (600) and connected to the guide tube (405), and a liquid outlet (407) connected to the annular tube (406). The cutting unit (300) includes a mounting plate (303) mated to the end of the outer casing (401) and a cutting blade (302) mated to the front of the outer casing (401). The material guiding assembly (200) includes a collection tank (203) docked to the bottom of the protective unit (100) and a filter screen (202) fixed to the bottom of the collection tank (203).

2. The plastic granule anti-adhesion cutting device according to claim 1, characterized in that: The material guiding assembly (200) also includes an outlet groove (201) and a drain connector (204). The bottom of the collection groove (203) is fixedly installed with a drain connector (204), and the drain connector (204) is correspondingly connected to the filter screen plate (202). The end of the collection groove (203) is fixedly installed with an outlet groove (201).

3. The plastic granule anti-adhesion cutting device according to claim 2, characterized in that: The cutting unit (300) also includes a motor (301). The motor (301) is fixedly installed on the back of the mounting plate (303). The output end of the motor (301) is connected to the cutting blade (302). The mating point of the cutting blade (302) is located on one side of the extrusion die (600).

4. The plastic granule anti-adhesion cutting device according to claim 3, characterized in that: The precooling assembly (400) also includes an upper switch valve (402), a threaded connector (403), and a lower switch valve (404). A threaded connector (403) is connected to the outer casing (401) and installed on the mounting plate (303). The end of the threaded connector (403) is connected to the plastic extrusion cylinder (500). The bottom of the spiral cooling pipe (408) is connected to the lower switch valve (404) and the port of the lower switch valve (404) is connected to the guide pipe (405). The top of the spiral cooling pipe (408) is connected to the upper switch valve (402).

5. The plastic granule anti-adhesion cutting device according to claim 4, characterized in that: The protective unit (100) includes a mounting block (101), a side plate (102), and a panel (103). The panel (103) is fixedly mounted on the top of the mounting plate (303), and the mounting block (101) and the side plate (102) are fixedly mounted on the bottom of the panel (103). The bottom of the mounting block (101) and the side plate (102) are fixedly connected to the top of the collection tank (203).

6. The plastic granule anti-adhesion cutting device according to claim 5, characterized in that: The top of the extrusion die (600) is provided with three sets of guide ports (601), and the guide ports (601) correspond to the ports of the liquid outlet head (407).

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