Anti-blocking structure of plastic extrusion device

Abstract

The utility model provides an anti-blocking structure of a plastic extrusion device, which is used for connecting an annular connecting plate with an external plastic extrusion output end in a working process. After an external plastic extruder stops working, part of plastic raw materials can remain at the output end of the extruder. When the temperature sensor detects that the temperature of the plastic raw materials in the conical discharging nozzle is reduced, the control mechanism controls the strip-shaped electric heating pipes and the annular electric heating pipes to work. And each strip-shaped electric heating pipe is electrified to heat the conical discharging nozzle. And the annular electric heating pipe is electrified to heat the extrusion splitter plate. Therefore, the plastic raw materials in the conical discharging nozzle are heated and prevented from being cooled and solidified. And meanwhile, the control mechanism controls the vibration motor to work, the vibration motor drives the conical discharging nozzle to vibrate, and the liquid plastic raw materials in the conical discharging nozzle can be discharged out of the conical discharging nozzle through the flow dividing holes.

Description

Technical Field

[0001] The utility model relates to the field of plastic extrusion devices, in particular to an anti-blocking structure of a plastic extrusion device. Background Technique

[0002] In plastic extrusion molding equipment, the plastic extruder is usually called the main machine, while the subsequent plastic extrusion molding machine supporting it is called the auxiliary machine. After more than 100 years of development, the plastic extruder has evolved from the original single screw to various models such as double screw, multi-screw, and even non-screw. The plastic extruder can be matched with various plastic molding auxiliary machines such as pipes, films, rods, monofilaments, flat filaments, packing tapes, wire meshes, sheets, profiles, granulation, and cable coating to form various plastic extrusion molding production lines for producing various plastic products. Therefore, plastic extrusion molding machinery is one of the widely used machine types in the plastic processing industry, both now and in the future.

[0003] However, in a traditional plastic extruder, such as the plastic extruder with anti-blocking function with the application number CN202221488627.2 and the invention name of anti-blocking plastic extruder, after stopping working, there will be some plastic raw materials remaining at the output end of the extruder. These plastic raw materials will solidify due to the decrease in temperature, which is likely to cause blockage to the output end. Content of the Utility Model

[0004] Based on this, in view of the technical problem that after the traditional plastic extruder stops working, the remaining plastic raw materials at the output end of the extruder are likely to cause blockage to the output end, it is necessary to provide an anti-blocking structure for a plastic extrusion device.

[0005] An anti-blocking structure for a plastic extrusion device, which includes: an annular connecting plate, a conical discharge nozzle, a vibration motor, an extrusion splitter plate, and a control mechanism;

[0006] The annular connecting plate is adapted to the conical discharge nozzle, and the annular connecting plate is sleeved on the outer wall of the wide end of the conical discharge nozzle and connected to the conical discharge nozzle; a conical storage cavity is provided inside the side wall of the conical discharge nozzle, and a number of clamping rib groups are evenly arranged in a circumferential manner in the conical storage cavity of the conical discharge nozzle. Each clamping rib group consists of two parallel clamping ribs, and a clamping space is formed between the two clamping ribs; a strip-shaped electric heating tube is arranged in each clamping space of the conical discharge nozzle;

[0007] The vibration motor is arranged on the outer wall of the conical discharge nozzle;

[0008] The extrusion diverter plate is adapted to the conical discharge nozzle. The extrusion diverter plate is disposed at the narrow end of the conical discharge nozzle and connected to the conical discharge nozzle. The extrusion diverter plate has a plurality of diverter holes evenly distributed around its circumference. A receiving blind hole is provided in the middle area of ​​the side of the extrusion diverter plate facing the conical discharge nozzle. A temperature sensor is provided in the receiving blind hole. An annular placement groove is provided on the side wall of the extrusion diverter plate. An annular electric heating tube is provided in the annular placement groove.

[0009] Each of the strip-shaped electric heating tubes, the vibration motor, the temperature sensor, and the annular electric heating tube is electrically connected to the control mechanism.

[0010] In one embodiment, the annular connecting plate has a plurality of connecting holes.

[0011] In one embodiment, the annular connecting plate and the conical discharge nozzle are integrally formed.

[0012] In one embodiment, the locking rib is integrally formed with the conical discharge nozzle.

[0013] In one embodiment, the extrusion splitter plate and the conical discharge nozzle are integrally formed.

[0014] In one embodiment, the outer wall of the conical discharge nozzle is provided with a plurality of first reinforcing ribs.

[0015] In one embodiment, the first reinforcing rib is a ring-shaped reinforcing rib.

[0016] In one embodiment, the first reinforcing rib is a strip-shaped reinforcing rib.

[0017] In one embodiment, the side of the extrusion diverter plate facing away from the conical discharge nozzle is provided with several second reinforcing ribs.

[0018] In one embodiment, the second reinforcing rib is a strip-shaped reinforcing rib.

[0019] The anti-clogging structure of the aforementioned plastic extrusion device connects the annular connecting plate to the output end of the external plastic extrusion machine during operation. After the external plastic extruder stops working, some plastic material remains at the output end. When the temperature sensor detects a decrease in the temperature of the plastic material inside the conical discharge nozzle, the control mechanism activates the strip heating tubes and the annular heating tubes. The strip heating tubes heat the conical discharge nozzle, and the annular heating tube heats the extrusion distributor plate. This heats the plastic material inside the conical discharge nozzle, preventing it from cooling and solidifying. The plastic material inside the conical discharge nozzle remains liquid. Simultaneously, the control mechanism activates the vibration motor, which drives the conical discharge nozzle to vibrate, allowing the liquid plastic material inside to exit through the distributor holes. This anti-clogging structure effectively prevents the output end of the external plastic extrusion machine from being blocked by cooled and solidified plastic material. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the anti-clogging structure of a plastic extrusion device in one embodiment;

[0021] Figure 2 This is a partial structural schematic diagram of the anti-clogging structure of a plastic extrusion device in one embodiment;

[0022] Figure 3 This is a schematic diagram of the structure inside the conical receiving cavity of the conical discharge nozzle in one embodiment. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Please refer to the following: Figures 1 to 3 This utility model provides an anti-clogging structure 10 for a plastic extrusion device. The anti-clogging structure 10 includes: an annular connecting plate 100, a conical discharge nozzle 200, a vibration motor 300, an extrusion diverter plate 400, and a control mechanism (not shown).

[0029] In this embodiment, the annular connecting plate 100 has several connecting holes 101 to facilitate connection between the annular connecting plate 100 and the output end of an external plastic extruder. The annular connecting plate 100 is adapted to the conical discharge nozzle 200, and the annular connecting plate 100 is sleeved on the outer wall of the wide end of the conical discharge nozzle 200 and connected to the conical discharge nozzle 200. In one embodiment, the annular connecting plate 100 and the conical discharge nozzle 200 are integrally formed. The conical discharge nozzle 200 has a conical receiving cavity inside its side wall, and several locking ribs are evenly arranged circumferentially within the conical receiving cavity. Each locking rib consists of two parallel locking ribs 210, and a locking space 201 is formed between the two locking ribs 210. In this embodiment, the locking ribs 210 and the conical discharge nozzle 200 are integrally formed. A strip electric heating tube 220 is provided in each of the slot spaces 201 of the conical discharge nozzle 200.

[0030] The vibration motor 300 is installed on the outer wall of the conical discharge nozzle 200.

[0031] The extrusion diverter plate 400 is adapted to the conical discharge nozzle 200, and is disposed at the narrow end of the conical discharge nozzle 200 and connected to it. In this embodiment, the extrusion diverter plate 400 and the conical discharge nozzle 200 are integrally formed. A plurality of diverter holes 401 are evenly distributed around the circumference of the extrusion diverter plate 400. A receiving blind hole 402 is provided in the middle area of ​​the side of the extrusion diverter plate 400 facing the conical discharge nozzle 200, and a temperature sensor 410 is disposed in the receiving blind hole 402. An annular containment groove 403 is provided on the side wall of the extrusion diverter plate 400, and an annular electric heating tube 420 is disposed within the annular containment groove 403.

[0032] Each strip-shaped electric heating element 220, vibrating motor 300, temperature sensor 410, and annular electric heating element 420 is electrically connected to the control mechanism. It should be noted that in this embodiment, the control mechanism is a lower-level machine, specifically a PLC. In another embodiment, the control mechanism is a microcontroller. In other embodiments, the control mechanism includes an upper-level machine and a lower-level machine, which are electrically connected. The control mechanism coordinates the operation of each strip-shaped electric heating element 220, vibrating motor 300, temperature sensor 410, and annular electric heating element 420 to increase the operational stability of the anti-clogging structure 10 of the plastic extrusion device.

[0033] To increase the structural strength of the anti-clogging structure 10 of the plastic extrusion apparatus, in one embodiment, a plurality of first reinforcing ribs are provided on the outer wall of the conical discharge nozzle 200. In this embodiment, the first reinforcing ribs are annular reinforcing ribs. In another embodiment, the first reinforcing ribs are strip-shaped reinforcing ribs. Each first reinforcing rib increases the structural strength and structural stability of the conical discharge nozzle 200. A plurality of second reinforcing ribs are provided on the side of the extrusion diverter plate 400 facing away from the conical discharge nozzle 200. In this embodiment, the second reinforcing ribs are strip-shaped reinforcing ribs. The second reinforcing ribs increase the structural strength and structural stability of the extrusion diverter plate 400. Thus, the structural strength of the anti-clogging structure 10 of the plastic extrusion apparatus is increased.

[0034] During operation, the anti-clogging structure 10 of the aforementioned plastic extrusion device connects the annular connecting plate 100 to the output end of the external plastic extrusion. After the external plastic extruder stops working, some plastic material remains at the output end. When the temperature sensor 410 detects a decrease in the temperature of the plastic material inside the conical discharge nozzle 200, the control mechanism controls the operation of each strip electric heating tube 220 and the annular electric heating tube 420. Each strip electric heating tube 220 is energized to heat the conical discharge nozzle 200. The annular electric heating tube 420 is energized to heat the extrusion diverter plate 400. This ensures that the plastic material inside the conical discharge nozzle 200 is heated, preventing it from cooling and solidifying. This keeps the plastic material inside the conical discharge nozzle 200 in a liquid state. Simultaneously, the control mechanism controls the vibration motor 300 to operate, which drives the conical discharge nozzle 200 to vibrate, allowing the liquid plastic material inside the conical discharge nozzle 200 to be discharged through each diverter hole 401. The anti-clogging structure 10 of the above-mentioned plastic extrusion device can effectively prevent the output end of the externally extruded plastic from being blocked by the cooled and solidified plastic raw material.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An anti-clogging structure for a plastic extrusion device, characterized in that, include: Annular connecting plate, conical discharge nozzle, vibrating motor, extrusion diverter plate and control mechanism; The annular connecting plate is adapted to the conical discharge nozzle, and the annular connecting plate is sleeved on the outer wall of the wide end of the conical discharge nozzle and connected to the conical discharge nozzle; a conical receiving cavity is opened inside the side wall of the conical discharge nozzle, and several locking ribs are evenly arranged in a circle in the conical receiving cavity. Each locking rib is composed of two parallel locking ribs, and a locking space is formed between the two locking ribs; a strip electric heating tube is provided in each locking space of the conical discharge nozzle; The vibration motor is mounted on the outer wall of the conical discharge nozzle; The extrusion diverter plate is adapted to the conical discharge nozzle. The extrusion diverter plate is disposed at the narrow end of the conical discharge nozzle and connected to the conical discharge nozzle. The extrusion diverter plate has a plurality of diverter holes evenly distributed around its circumference. A receiving blind hole is provided in the middle area of ​​the side of the extrusion diverter plate facing the conical discharge nozzle. A temperature sensor is provided in the receiving blind hole. An annular placement groove is provided on the side wall of the extrusion diverter plate. An annular electric heating tube is provided in the annular placement groove. Each of the strip-shaped electric heating tubes, the vibration motor, the temperature sensor, and the annular electric heating tube is electrically connected to the control mechanism.

2. The anti-clogging structure of the plastic extrusion device according to claim 1, characterized in that, The annular connecting plate has several connecting holes.

3. The anti-clogging structure of the plastic extrusion device according to claim 1, characterized in that, The annular connecting plate and the conical discharge nozzle are integrally formed.

4. The anti-clogging structure of the plastic extrusion device according to claim 1, characterized in that, The locking rib and the conical discharge nozzle are integrally formed.

5. The anti-clogging structure of the plastic extrusion device according to claim 1, characterized in that, The extrusion diverter plate and the conical discharge nozzle are integrally formed.

6. The anti-clogging structure of the plastic extrusion apparatus according to claim 1, characterized in that, The outer wall of the conical discharge nozzle is provided with several first reinforcing ribs.

7. The anti-clogging structure of the plastic extrusion apparatus according to claim 6, characterized in that, The first reinforcing rib is a ring-shaped reinforcing rib.

8. The anti-clogging structure of the plastic extrusion apparatus according to claim 6, characterized in that, The first reinforcing rib is a strip-shaped reinforcing rib.

9. The anti-clogging structure of the plastic extrusion apparatus according to claim 1, characterized in that, The side of the extrusion diverter plate facing away from the conical discharge nozzle is provided with several second reinforcing ribs.

10. The anti-clogging structure of the plastic extrusion apparatus according to claim 9, characterized in that, The second reinforcing rib is a strip-shaped reinforcing rib.

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