Drying and conveying device for plastic particles for cable processing
By designing a drying and conveying device in the online cable processing, the plastic particles in the material box are dried and transported, which solves the problem of moisture in plastic particles affecting the performance of cables and achieves higher quality cable processing.
Patent Information
- Application Number
- CN202421255643.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-03
AI Technical Summary
In the existing cable processing technology, plastic particles may be damp or contain a lot of moisture, resulting in a decrease in extrusion molding quality and affecting cable performance.
A drying and conveying device is designed to dry the plastic particles using the agitation in the material box and the hot air output from the heat pipe, and transport the dried plastic particles to the hopper through a negative pressure conveying mechanism.
It significantly improves the drying performance of plastic particles, thereby improving the quality of cables and ensuring stable quality of extrusion molding.
Smart Images
Figure CN222431270U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable processing, in particular to a drying and conveying device for plastic particles used for cable processing. Background Art
[0002] In the prior art, a layer of plastic material such as PE, PP, etc. is coated on the outside of the metal core during cable processing to achieve an insulating effect. During processing, plastic particles are directly added to the hopper and then extruded and coated on the metal core by an extruder. However, since the plastic particles may be damp or contain a lot of water, the quality of extrusion molding will be affected, which will reduce the performance of the cable. Therefore, a drying mechanism is urgently needed to heat the plastic particles before conveying them to the hopper to ensure the quality of the cable. Utility Model Content
[0003] In order to solve the above technical deficiencies, the utility model provides a drying and conveying device for plastic particles for cable processing, which can dry the plastic particles in a material box and then complete the conveying, so as to improve the quality of the cable.
[0004] The utility model discloses a drying and conveying device for plastic particles for cable processing, comprising a hopper and a material box on an extruder, the material box being a hollow rectangular parallelepiped structure, the bottom of the material box being an arc surface structure, a fixed shaft being arranged inside the material box, the circumference of the fixed shaft being consistent with the axial direction of the arc surface, a downward connecting rod being arranged on the fixed shaft, a heat pipe being arranged at the lower end of the connecting rod, a plurality of air outlets being arranged on the circumferential side wall of the heat pipe, the interior of the fixed shaft being hollow to form an air flow channel, one end of the heat pipe being closed, and the other end being communicated with the air flow channel of the fixed shaft through an air pipe, a high-pressure air pipe being arranged outside the material box, the high-pressure air pipe being connected to a high-pressure air source, the high-pressure air pipe being connected to the air flow channel of the fixed shaft, a heater being arranged on the high-pressure air pipe, and the heater being used for heating the high-pressure air; a conveying pipeline being arranged between the hopper and the material box, one end of the conveying pipeline extending to the bottom of the material box, and the other end extending to the interior of the hopper, and a negative pressure conveying mechanism being arranged on the conveying pipeline.
[0005] Rotating sleeves are provided at both ends of the fixed shaft, one of which extends to the outside of the material box and is transmission-connected to the power mechanism outside the material box, a rotating ring is provided on the rotating sleeve through a fixed rod, the rotating rings on the two rotating sleeves correspond to each other, a plurality of stirring rods are arranged between the two rotating rings, and the stirring rods are arranged in a ring shape, and the diameter of the rotating ring is larger than the diameter of the circle where the heat pipe is located.
[0006] The hopper is a closed structure, and a plurality of exhaust holes are arranged on the top of the hopper.
[0007] Partition plates inclined downward are arranged on two opposite side walls inside the hopper, and there is a gap between the partition plates.
[0008] The utility model provides a drying and conveying device for plastic particles for cable processing, which dries the plastic particles in a material box by stirring and hot air output by a heat pipe, and conveys the plastic particles to a hopper by negative pressure adsorption, thereby greatly improving the drying performance of the plastic particles and thus improving the quality of the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the structure of the utility model;
[0010] Figure 2 It is a schematic diagram of the internal structure of the material box of the utility model. DETAILED DESCRIPTION
[0011] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.
[0012] Embodiment 1:
[0013] like Figure 1 , Figure 2 As shown, the utility model discloses a drying and conveying device for plastic particles for cable processing, comprising a hopper 2 and a material box 3 on an extruder 1, wherein the material box 3 is a hollow rectangular parallelepiped structure, and the bottom of the material box 3 is an arc surface structure, a fixed shaft 5 is arranged inside the material box 3, and the circumferential direction of the fixed shaft 5 is consistent with the axial direction of the arc surface, a downward connecting rod 7 is arranged on the fixed shaft 5, and a heat pipe 8 is arranged at the lower end of the connecting rod 7, and a plurality of air outlets are arranged on the circumferential side wall of the heat pipe 8, and the interior of the fixed shaft 5 is hollow to form an air flow channel 17, and the heat pipe 8 is provided with a plurality of air outlets. One end is closed, and the other end is connected to the air flow channel 17 of the fixed shaft 5 through the air pipe 9. A high-pressure air pipe 19 is arranged outside the material box 3, and the high-pressure air pipe 19 is connected to the high-pressure air source, and the high-pressure air pipe 19 is connected to the air flow channel 17 of the fixed shaft 5. A heater 18 is arranged on the high-pressure air pipe 19, and the heater 18 is used to heat the high-pressure air; a conveying pipe 13 is arranged between the hopper 2 and the material box 3, and one end of the conveying pipe 13 extends to the bottom of the material box 3, and the other end extends to the inside of the hopper 2, and a negative pressure conveying mechanism 14 is arranged on the conveying pipe 13. A feed port 4 is arranged on the top of the material box 3, and the feed port 4 is in a normally open state.
[0014] In actual work, plastic particles are stored in the material box 3. Under normal circumstances, the stock of plastic particles in the material box 3 will be higher than the position of the heat pipe 8. When the amount of plastic particles in the material box 3 is insufficient, it can be replenished manually. The plastic particles in the material box 3 will be transported to the hopper 2 through the negative pressure conveying mechanism 14 and the conveying pipeline 13. Among them, the negative pressure conveying mechanism 14 is an existing commercially available equipment, and the specific structure will not be repeated. The negative pressure conveying mechanism 14 generates an airflow in the pipeline from one end of the material box 3 to one end of the hopper 2, and the plastic particles in the material box 3 are adsorbed and transported to the hopper 2. The high-pressure gas source conveys high-pressure air to the heater 18 through the high-pressure gas pipe 19, and then conveys it to the heat pipe 8 through the airflow channel 17 and the gas pipe 9. Among them, the heater 18 is an existing commercially available equipment, and the specific structure will be repeated. The heater 18 can be electrically heated, such as heated by the electric heating pipe 8. When the high-pressure airflow passes through the heater 18, it will heat up, so the temperature of the air output from the heat pipe 8 is relatively high, generally around 50°. The hot air output by the heat pipe 8 performs hot air drying on the plastic particles in the material box 3, and the hot air can be discharged from the feed port 4. Since the plastic particles in the material box 3 will change position when the conveying pipe 13 conveys the plastic particles to the hopper 2, the plastic particles around the heat pipe 8 will also change position, and different plastic particles can be heated and dried to improve the quality of cable processing.
[0015] Rotating sleeves 6 are arranged at both ends of the fixed shaft 5, one of which extends to the outside of the material box 3 and is connected to the power mechanism 20 outside the material box 3 by transmission. A rotating ring 11 is arranged on the rotating sleeve 6 through a fixed rod 10, and the rotating rings 11 on the two rotating sleeves 6 correspond to each other. A plurality of stirring rods 12 are arranged between the two rotating rings 11, and the stirring rods 12 are arranged in a ring shape. The diameter of the rotating ring 11 is larger than the diameter of the circumference of the heat pipe 8. Rotating sleeves 6 are arranged at both ends of the fixed shaft 5, and the rotating sleeve 6 at one end is driven to rotate by the power mechanism 20, and a rotating ring 11 is arranged on each rotating sleeve 6 through a fixed rod 10, and a stirring rod 12 is arranged between the two rotating rings 11, so the rotating sleeve 6, the fixed rod 10, the rotating ring 11, and the stirring rod 12 form an integrated structure, which are all driven and connected by the power mechanism 20. The power mechanism 20 can be a combination of an electric motor and a reduction box, and the power mechanism 20 and the rotating sleeve 6 can be driven by a drum belt, or by a gear transmission. When the power mechanism 20 drives the stirring rod 12 to rotate, the plastic particles in the material box 3 can be stirred, so that the plastic particles in the material box 3 are moved, thereby achieving a better drying effect on the plastic particles and further improving the cable quality.
[0016] The hopper 2 is a closed structure, and a plurality of exhaust holes 15 are provided on the top of the hopper 2. Since air will enter the hopper 2 when the conveying pipe conveys plastic particles into the hopper 2, and the plastic particles have a certain speed, in order to prevent the plastic particles from splashing to the outside of the hopper 2 under the action of impact, the hopper 2 is a closed structure, and the exhaust holes 15 are provided on the top for exhausting air.
[0017] The partitions 16 tilted downward are arranged on two opposite side walls inside the hopper 2, and there is a gap between the partitions 16. In order to ensure that the plastic particles in the hopper 2 can remain stable during the conveying process to the extruder 1, that is, the plastic particles below the hopper 2 remain stable, two tilted partitions 16 are arranged in the middle part of the hopper 2, and the connection part between the conveying pipe 13 and the hopper 2 is located above the partition 16, so the sprayed plastic particles will only impact the plastic particles above the partition 16, and the plastic particles on the partition 16 will fall stably, so that the plastic particles in the hopper 2 below the partition 16 are stable.
[0018] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0019] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be an interactive relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0020] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0021] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simplified modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. A drying and conveying device for plastic particles for cable processing, comprising a hopper and a material box on an extruder, characterized in that: The material box is a hollow rectangular structure, and the bottom of the material box is an arc structure. A fixed shaft is arranged inside the material box, and the circumference of the fixed shaft is consistent with the axial direction of the arc surface. A downward connecting rod is arranged on the fixed shaft, and a heat pipe is arranged at the lower end of the connecting rod. A plurality of air outlets are arranged on the circumferential side wall of the heat pipe. The interior of the fixed shaft is hollow to form an air flow channel. One end of the heat pipe is closed, and the other end is connected to the air flow channel of the fixed shaft through an air pipe. A high-pressure air pipe is arranged outside the material box, and the high-pressure air pipe is connected to a high-pressure air source, and the high-pressure air pipe is connected to the air flow channel of the fixed shaft. A heater is arranged on the high-pressure air pipe, and the heater is used to heat the high-pressure air; a conveying pipe is arranged between the hopper and the material box, and one end of the conveying pipe extends to the bottom of the material box, and the other end extends to the inside of the hopper, and a negative pressure conveying mechanism is arranged on the conveying pipe.
2. The drying and conveying device for plastic particles for cable processing according to claim 1, characterized in that: Rotating sleeves are provided at both ends of the fixed shaft, one of which extends to the outside of the material box and is transmission-connected to the power mechanism outside the material box, a rotating ring is provided on the rotating sleeve through a fixed rod, the rotating rings on the two rotating sleeves correspond to each other, a plurality of stirring rods are arranged between the two rotating rings, and the stirring rods are arranged in a ring shape, and the diameter of the rotating ring is larger than the diameter of the circle where the heat pipe is located.
3. A drying and conveying device for plastic particles for cable processing according to claim 1 or 2, characterized in that: The hopper is a closed structure, and a plurality of exhaust holes are arranged on the top of the hopper.
4. A drying and conveying device for plastic particles for cable processing according to claim 3, characterized in that: Partition plates inclined downward are arranged on two opposite side walls inside the hopper, and there is a gap between the partition plates.