PVC plastic particle plastic extruder for cable sheath production

Abstract

The utility model relates to the technical field of plastic production, and discloses a PVC plastic particle plastic extruder for cable sheath production, which comprises an equipment box, an extrusion cylinder is fixedly arranged on the inner wall of the equipment box, the inner wall of the extrusion cylinder is rotatably connected with an extrusion screw rod, the right end of the extrusion cylinder is fixedly connected with a cooling mechanism, and the right end of the extrusion cylinder is fixedly connected with an extrusion screw rod. The cooling mechanism is used for cooling the extruded plastic, the cooling mechanism comprises a cooling box, an extrusion hole is formed in the right end of the cooling box, a mesh plate is fixedly mounted at the right end of the cooling box through a bolt, and the position of the mesh plate corresponds to that of the extrusion hole. According to the utility model, the cooling mechanism is arranged at the position of the extrusion hole of the extrusion molding cylinder, and the cooling box can be used for cooling the heated plasticized dissolved material to a certain degree, so that the plastic keeps toughness to a certain degree, the subsequent cutting operation on the plastic is facilitated, the plastic particle molding is facilitated, and the molding quality of the particles is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic production, and more specifically to a PVC plastic particle plastic extruder for the production of cable sheaths. Background Technique

[0002] PVC is polyvinyl chloride plastic, which is brightly colored, corrosion-resistant, and firm and durable. Due to the addition of plasticizers during the manufacturing process, in the production process of cable sheaths, due to the good durability of PVC, PVC plastic is usually used as the raw material for the production of plastic sheaths.

[0003] For example, a plastic extruder for producing PVC plastic particles with the publication number CN218429349U includes a plastic extrusion box. A transmission mechanism is arranged inside the plastic extrusion box. An extrusion device is arranged on one side of the transmission mechanism. A cutting mechanism is arranged on one side of the extrusion device. A filtering mechanism is arranged below the cutting mechanism. The beneficial effect is that the extrusion plate is detachably connected to the transmission shell by screws, which is convenient to meet the needs of extruding different plastic particles.

[0004] When the plastic extruder proposed in the above patent document is in use, the plastic is directly extruded and cut after being heated and melted, lacking proper cooling of the plastic, resulting in the extruded plastic still being in a fluid state and having poor toughness, and being easily scattered by the cutting blade during cutting, unable to achieve the forming effect of particles. Therefore, this problem needs to be improved. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a PVC plastic particle plastic extruder for the production of cable sheaths, which has the advantages of good cutting and granulation effect, etc., to solve the problems existing in the above background technique.

[0006] The utility model provides the following technical solution: A PVC plastic particle plastic extruder for the production of cable sheaths includes an equipment box. The inner wall of the equipment box is fixedly provided with an extrusion cylinder. An extrusion screw is rotatably connected to the inner wall of the extrusion cylinder. The right end of the extrusion cylinder is fixedly connected with a cooling mechanism, and the cooling mechanism is used to cool down the plastic after extrusion.

[0007] The cooling mechanism includes a cooling box. An extrusion hole is formed at the right end of the cooling box, and a mesh plate is fixedly installed at the right end of the cooling box through bolts. The position of the mesh plate corresponds to that of the extrusion hole. An annular cooling cavity is formed on the inner wall of the cooling box, and a coolant is filled in the annular cooling cavity. A coolant storage box is fixedly connected to the upper surface of the equipment box. A refrigerator is fixedly installed on the surface of the coolant storage box. The refrigerator is used to cool the coolant in the coolant storage box. A circulating delivery pump is fixedly installed on the back of the coolant storage box. The output end of the circulating delivery pump is fixedly connected to a first cooling pipe. A second cooling pipe is fixedly embedded in the front of the coolant storage box. One ends of the first cooling pipe and the second cooling pipe far away from the coolant storage box both extend into the interior of the annular cooling cavity.

[0008] Furthermore, a first driving motor is fixedly installed on the right side of the equipment box. The output shaft of the first driving motor extends into the interior of the equipment box and is fixedly connected to an extension rod. A rotating seat is fixedly connected to the left end of the extension rod. A plurality of cutting blades are fixedly connected to the surface of the rotating seat. The position of the cutting blades corresponds to that of the mesh plate.

[0009] Furthermore, a limiting baffle is fixedly connected between the front and rear inner walls of the equipment box and the cooling box. A rubber connecting belt is fixedly connected to the right side of the limiting baffle. An arc-shaped collecting plate is fixedly connected to the surface of the rubber connecting belt. The arc-shaped collecting plate is located below the mesh plate. A strip-shaped collecting hole is formed at the bottom end of the arc-shaped collecting plate. The strip-shaped collecting hole is used to collect the extruded plastic particles.

[0010] Furthermore, both the front and rear ends of the arc-shaped collecting plate are slidably connected to the inner wall of the equipment box. A collecting box is placed on the inner bottom wall of the equipment box. The collecting box is located directly below the strip-shaped collecting hole. A vibration mechanism is arranged on the right side of the equipment box.

[0011] Furthermore, the vibration mechanism includes a fixed shell. A second driving motor is fixedly installed on the side of the fixed shell. The output shaft of the second driving motor extends into the interior of the fixed shell and is fixed with a rotating cam. A limiting rod is fixed on the inner wall of the fixed shell. A linkage plate is slidably sleeved on the surface of the limiting rod. The left side of the linkage plate extends into the interior of the equipment box and is fixedly connected to the right side of the arc-shaped collecting plate.

[0012] Furthermore, the rotating cam is lapped with the lower surface of the linkage plate. A return spring is sleeved on the surface of the limiting rod. The top end of the return spring is fixedly connected to the inner top wall of the fixed shell, and the bottom end of the return spring is fixedly connected to the upper surface of the linkage plate. A rectangular limiting hole is formed on the side of the equipment box. The linkage plate is slidably connected to the inner wall of the rectangular limiting hole.

[0013] Further, a third driving motor is fixedly installed on the left side of the equipment box, and an output shaft of the third driving motor extends into the inside of the extrusion barrel and is fixedly connected to the left end of the extrusion screw.

[0014] Further, a feed hopper is fixedly embedded in the upper surface of the extrusion barrel, a top feed port of the feed hopper extends to the outside of the equipment box, and a material taking port is opened on the left side of the equipment box.

[0015] The technical effects and advantages of the present utility model:

[0016] 1. By arranging a cooling mechanism at the extrusion holes of the extrusion barrel, the present utility model can use the cooling box to cool and cool the heated and plasticized melt material to a certain extent, so that the plastic maintains a certain degree of toughness, which is convenient for subsequent cutting operations on the plastic and is beneficial to the formation of plastic particles, improving the forming quality of the particles.

[0017] 2. By arranging an annular cooling cavity inside the cooling box, the present utility model can use a circulating delivery pump to circulate the coolant inside the annular cooling cavity and the coolant storage box, which is beneficial to maintaining a stable cooling temperature of the coolant and improving the cooling effect.

[0018] 3. By arranging an arc-shaped collecting plate inside the equipment box, the present utility model can drive the arc-shaped collecting plate to vibrate up and down by using a second driving motor. Thus, when the plastic particles are discharged, the arc-shaped collecting plate can vibrate the plastic particles, which is beneficial to the plastic particles sliding down to the strip-shaped collecting holes for discharging under the action of vibration, so that the plastic particles are not easily adsorbed on the arc-shaped collecting plate to cause adhesion and accumulation, achieving the effect of convenient discharging and collection. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall external structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the front cross-sectional structure of the equipment box of the present utility model;

[0021] Figure 3 It is a schematic diagram of the top cross-sectional structure of the equipment box of the present utility model;

[0022] Figure 4 It is a schematic diagram of the front cross-sectional structure of the vibration mechanism of the present utility model.

[0023] The reference numerals are: 1, equipment box; 2, extrusion barrel; 3, vibration mechanism; 4, cooling mechanism; 5, first driving motor; 6, extension rod; 7, cutting blade; 8, limit baffle; 9, rubber connecting belt; 10, arc-shaped collecting plate; 11, strip-shaped collecting hole; 12, collecting box; 13, extrusion screw; 14, third driving motor; 15, feed hopper; 16, material taking port.

[0024] 301. Fixed housing; 302. Second drive motor; 303. Rotating cam; 304. Limit rod; 305. Linkage plate; 306. Return spring; 307. Rectangular limit hole

[0025] 401. Cooling box; 402. Mesh plate; 403. Annular cooling chamber; 404. Coolant storage box; 405. Refrigerator; 406. Circulating transfer pump; 407. First cooling pipe; 408. Second cooling pipe Specific implementation manner

[0026] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings in the present invention. In addition, the forms of each structure described in the following embodiments are merely examples. A PVC plastic particle plastic extruder for producing cable sheaths involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention

[0027] Refer to Figures 1-4 , the present invention provides a PVC plastic particle plastic extruder for producing cable sheaths, including an equipment box 1. An extrusion cylinder 2 is fixedly arranged on the inner wall of the equipment box 1. A feed hopper 15 is fixedly embedded on the upper surface of the extrusion cylinder 2, and the top feed port of the feed hopper 15 extends to the outside of the equipment box 1

[0028] An extrusion screw 13 is rotatably connected to the inner wall of the extrusion cylinder 2, and a heater is arranged on the inner wall of the extrusion cylinder 2. The heater can be used to heat and melt the plastic, which is beneficial to mixing PVC plastics of different colors

[0029] Through the above technical solutions, a third drive motor 14 is fixedly installed on the left side of the equipment box 1. The output shaft of the third drive motor 14 extends into the interior of the extrusion cylinder 2 and is fixedly connected to the left end of the extrusion screw 13. The right end of the extrusion cylinder 2 is fixedly connected to a cooling mechanism 4, and the cooling mechanism 4 is used to cool down the extruded plastic

[0030] The cooling mechanism 4 includes a cooling box 401. An extrusion hole is opened at the right end of the cooling box 401, and a mesh plate 402 is fixedly installed at the right end of the cooling box 401 through bolts. The position of the mesh plate 402 corresponds to the extrusion hole. A first drive motor 5 is fixedly installed on the right side of the equipment box 1. The output shaft of the first drive motor 5 extends into the interior of the equipment box 1 and is fixedly connected to an extension rod 6. A rotating seat is fixedly connected to the left end of the extension rod 6, and a plurality of cutting blades 7 are fixedly connected to the surface of the rotating seat. The position of the cutting blades 7 corresponds to the mesh plate 402

[0031] It should be noted that by providing a cooling mechanism 4 at the extrusion hole position of the extrusion barrel 2, the cooling box 401 can be used to cool and cool the heated and plasticized melt to a certain extent, so as to keep the plastic with a certain degree of toughness, which is convenient for subsequent cutting operations on the plastic, and is conducive to the formation of plastic particles and improves the forming quality of the particles.

[0032] Through the above technical solution, an annular cooling cavity 403 is formed on the inner wall of the cooling box 401, and a coolant is filled inside the annular cooling cavity 403. The upper surface of the equipment box 1 is fixedly connected with a coolant storage box 404, and a refrigerator 405 is fixedly installed on the surface of the coolant storage box 404. The refrigerator 405 is used to cool the coolant in the coolant storage box 404. It should be noted that the refrigerator 405 is a refrigerator similar to those in existing freezers, and the specific working principle of refrigeration will not be described in detail.

[0033] A circulating pump 406 is fixedly installed on the back of the coolant storage box 404. The output end of the circulating pump 406 is fixedly connected with a first cooling pipe 407. A second cooling pipe 408 is fixedly embedded in the front of the coolant storage box 404. One ends of the first cooling pipe 407 and the second cooling pipe 408 far away from the coolant storage box 404 both extend into the interior of the annular cooling cavity 403.

[0034] It should be noted that by providing an annular cooling cavity 403 inside the cooling box 401, when cooling the plastic, the circulating pump 406 can be used to circulate the coolant inside the annular cooling cavity 403 through the first cooling pipe 407 and the second cooling pipe 408 with the coolant inside the coolant storage box 404, which is conducive to keeping the coolant at a stable cooling temperature and improving the cooling effect.

[0035] Through the above technical solution, a limiting baffle 8 is fixedly connected between the front and rear inner walls of the equipment box 1 and the cooling box 401. A rubber connecting belt 9 is fixedly connected to the right side of the limiting baffle 8. An arc-shaped collecting plate 10 is fixedly connected to the surface of the rubber connecting belt 9. The arc-shaped collecting plate 10 is located below the mesh plate 402. A strip-shaped collecting hole 11 is formed at the bottom end of the arc-shaped collecting plate 10, and the strip-shaped collecting hole 11 is used to collect the extruded plastic particles.

[0036] It should be noted that by providing a rubber connecting belt 9 between the limiting baffle 8 and the arc-shaped collecting plate 10, a flexible connection can be generated between the arc-shaped collecting plate 10 and the limiting baffle 8, which is convenient for the arc-shaped collecting plate 10 to vibrate up and down.

[0037] Through the above technical solution, both the front and rear ends of the arc-shaped collection plate 10 are slidably connected to the inner wall of the equipment box 1. A collection box 12 is placed on the inner bottom wall of the equipment box 1, and the collection box 12 is located directly below the strip-shaped collection hole 11. A material taking port 16 is opened on the left side of the equipment box 1, and the position of the material taking port 16 corresponds to that of the collection box 12.

[0038] A vibration mechanism 3 is arranged on the right side of the equipment box 1. The vibration mechanism 3 includes a fixed shell 301. A second driving motor 302 is fixedly installed on the side surface of the fixed shell 301. The output shaft of the second driving motor 302 extends into the interior of the fixed shell 301 and is fixed with a rotating cam 303. A limiting rod 304 is fixedly installed on the inner wall of the fixed shell 301. A linkage plate 305 is slidably sleeved on the surface of the limiting rod 304. The left side of the linkage plate 305 extends into the interior of the equipment box 1 and is fixedly connected to the right side of the arc-shaped collection plate 10.

[0039] Through the above technical solution, the rotating cam 303 is in lap joint with the lower surface of the linkage plate 305. A return spring 306 is sleeved on the surface of the limiting rod 304. The top end of the return spring 306 is fixedly connected to the inner top wall of the fixed shell 301, and the bottom end of the return spring 306 is fixedly connected to the upper surface of the linkage plate 305. A rectangular limiting hole 307 is opened on the side surface of the equipment box 1, and the linkage plate 305 is slidably connected to the inner wall of the rectangular limiting hole 307.

[0040] It is worth noting that by arranging the arc-shaped collection plate 10 inside the equipment box 1, during use, the second driving motor 302 can be used to drive the rotating cam 303 to rotate. The rotating cam 303 is used to repeatedly push the linkage plate 305 upward, so that the linkage plate 305 slides up and down on the surface of the limiting rod 304 and automatically resets under the action of the return spring 306, thereby driving the arc-shaped collection plate 10 to produce an up-and-down vibration effect. Thus, when the plastic particles are discharged, the arc-shaped collection plate 10 can be used to vibrate the plastic particles, which is beneficial for the plastic particles to slide down into the strip-shaped collection hole 11 for discharging, so that the plastic particles are not easily adsorbed on the arc-shaped collection plate 10 to cause adhesion and accumulation, achieving the effect of convenient discharging and collection.

[0041] Working principle: When in use, first put PVC plastic raw materials of different colors and types into the inside of the extrusion barrel 2 from the feed hopper 15, then drive the extrusion screw 13 to rotate by the third drive motor 14, thereby extruding the plastic, and at the same time heating and melting and mixing the plastic. Then, under the pressure of the extrusion screw 13, the plastic is extruded into the cooling box 401 by the perforated plate 402. At the same time, the first drive motor 5 drives a plurality of cutting blades 7 to rotate at a high speed on the surface of the perforated plate 402, so as to cut the extruded strip-shaped plastic into particles. The cut plastic particles fall onto the surface of the arc-shaped collecting plate 10, and under the vibration of the arc-shaped collecting plate 10, the plastic particles enter the collecting box 12 below from the strip-shaped collecting holes 11, thereby facilitating the staff to collect and take the material from the material taking port 16 of the equipment box 1 for the collecting box 12.

[0042] Finally, it should be noted that in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A PVC plastic particle plastic extruder for cable sheath production, including an equipment box (1), characterized in that: The inner wall of the equipment box (1) is fixedly provided with an extrusion barrel (2). The inner wall of the extrusion barrel (2) is rotationally connected with an extrusion screw (13). The right end of the extrusion barrel (2) is fixedly connected with a cooling mechanism (4), and the cooling mechanism (4) is used for cooling the extruded plastic. The cooling mechanism (4) includes a cooling box (401). An extrusion hole is opened at the right end of the cooling box (401), and a mesh plate (402) is fixedly installed at the right end of the cooling box (401) through bolts. The position of the mesh plate (402) corresponds to that of the extrusion hole. An annular cooling cavity (403) is opened in the inner wall of the cooling box (401), and the annular cooling cavity (403) is filled with a coolant. A coolant storage box (404) is fixedly connected to the upper surface of the equipment box (1). A refrigerator (405) is fixedly installed on the surface of the coolant storage box (404), and the refrigerator (405) is used for refrigerating the coolant in the coolant storage box (404). A circulating delivery pump (406) is fixedly installed on the back of the coolant storage box (404). The output end of the circulating delivery pump (406) is fixedly connected with a first cooling pipe (407). A second cooling pipe (408) is fixedly embedded in the front of the coolant storage box (404). The ends of the first cooling pipe (407) and the second cooling pipe (408) far away from the coolant storage box (404) both extend into the interior of the annular cooling cavity (403).

2. The PVC plastic granule plastic extruder for producing cable sheaths according to claim 1, wherein: A first driving motor (5) is fixedly installed on the right side of the equipment box (1). The output shaft of the first driving motor (5) extends into the interior of the equipment box (1) and is fixedly connected with an extension rod (6). The left end of the extension rod (6) is fixedly connected with a rotating seat, and a plurality of cutting blades (7) are fixedly connected to the surface of the rotating seat. The position of the cutting blades (7) corresponds to that of the mesh plate (402).

3. The PVC plastic particle plastic extruder for cable sheath production according to claim 1, wherein: A limiting baffle (8) is fixedly connected between the front and rear inner walls of the equipment box (1) and the cooling box (401). A rubber connecting belt (9) is fixedly connected to the right side of the limiting baffle (8). An arc-shaped collecting plate (10) is fixedly connected to the surface of the rubber connecting belt (9). The arc-shaped collecting plate (10) is located below the mesh plate (402). A strip-shaped collecting hole (11) is opened at the bottom end of the arc-shaped collecting plate (10), and the strip-shaped collecting hole (11) is used for collecting the extruded plastic particles.

4. An extruder for PVC plastic particles used in the production of cable sheaths according to claim 3, characterized in that: Both the front and rear ends of the arc-shaped collecting plate (10) are slidably connected with the inner wall of the equipment box (1). A collecting box (12) is placed on the inner bottom wall of the equipment box (1), and the collecting box (12) is located directly below the strip-shaped collecting hole (11). A vibration mechanism (3) is arranged on the right side of the equipment box (1).

5. An extruder for PVC plastic particles used in the production of cable sheaths according to claim 4, characterized in that: The vibration mechanism (3) includes a fixed housing (301). A second drive motor (302) is fixedly installed on the side surface of the fixed housing (301). The output shaft of the second drive motor (302) extends into the interior of the fixed housing (301) and is fixed with a rotary cam (303). A limiting rod (304) is fixed to the inner wall of the fixed housing (301). A linkage plate (305) is slidably sleeved on the surface of the limiting rod (304). The left side of the linkage plate (305) extends into the interior of the equipment box (1) and is fixedly connected to the right side of the arc-shaped collecting plate (10).

6. The PVC plastic particle plastic extruder for cable sheath production according to claim 5, characterized in that: The rotary cam (303) abuts against the lower surface of the linkage plate (305). A return spring (306) is sleeved on the surface of the limiting rod (304). The top end of the return spring (306) is fixedly connected to the inner top wall of the fixed housing (301), and the bottom end of the return spring (306) is fixedly connected to the upper surface of the linkage plate (305). A rectangular limiting hole (307) is formed in the side surface of the equipment box (1). The linkage plate (305) is slidably connected to the inner wall of the rectangular limiting hole (307).

7. A PVC plastic particle plastic extruder for the production of cable sheaths according to claim 1, characterized in that: A third drive motor (14) is fixedly installed on the left side of the equipment box (1). The output shaft of the third drive motor (14) extends into the interior of the extrusion barrel (2) and is fixedly connected to the left end of the extrusion screw (13).

8. An extruder for PVC plastic particles used in the production of cable sheaths according to claim 1, characterized in that: A feed hopper (15) is fixedly embedded in the upper surface of the extrusion barrel (2). The top feed port of the feed hopper (15) extends to the outside of the equipment box (1). A material taking port (16) is formed in the left side of the equipment box (1).

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