CN214983072U

CN214983072U - Barrel body of double-screw extruder

Info

Publication number: CN214983072U
Application number: CN202121791605.9U
Authority: CN
Inventors: 范海霞
Original assignee: Nanjing Delisheng Mechanical Equipment Co ltd
Current assignee: Nanjing Delisheng Mechanical Equipment Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2021-12-03
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a cylinder body of a double-screw extruder, which comprises a cylinder body, wherein a through cylinder hole is arranged in the cylinder body, the cross section of the cylinder body is rectangular, and mounting grooves are arranged around the cylinder body; the mounting groove is characterized in that a heat conducting wall is arranged between the mounting groove and the barrel hole, the heat conducting wall and the barrel body of the machine barrel are integrally formed, a heating device is arranged in the mounting groove, and a fixing device is arranged between the heating device and the mounting groove. The utility model discloses a be equipped with heating device, heat the inside heat conduction wall of mounting groove through heating device to the raw materials of extruding the transport to the barrel heats, in time carries out the thermal compensation, thereby the raw materials temperature that effectual messenger extruded is unanimous with required temperature, prevents that the raw materials temperature from reducing to lead to the raw materials extravagant, influences the article yield.

Description

Barrel body of double-screw extruder

Technical Field

The utility model belongs to the technical field of extruder equipment, in particular to double screw extruder's barrel.

Background

The double-screw extruder is developed on the basis of a single-screw extruder, and has the characteristics of good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and the like, so that the double-screw extruder is widely applied to the molding processing of extruded products at present; twin screw extruders consist of several parts, including drive, feed, barrel and screw, and function similar to single screw extruders, except that twin screw extruders with two parallel screws placed in a "∞" cross section are usually tightly meshed and counter-rotating for profile extrusion, although a few are also co-rotating and typically operate at relatively low screw speeds, around 10 r/min. High speed intermeshing co-rotating twin screw extruders for compounding, venting or as continuous chemical reactors, the maximum screw speed of such extruders being in the range of 300-. The non-intermeshing type extruder is used for mixing, degassing and chemical reactions, and the conveying mechanism of the non-intermeshing type extruder is different from that of the intermeshing type extruder and is closer to that of a single-screw extruder although the two extruders are different in nature.

At present, a double-screw extruder can cause heat loss of some raw materials in the extrusion process, so that the temperature of the extruded raw materials cannot reach the extrusion temperature, the extruded materials cannot reach the qualified standard, and the finished product rate of the product is influenced.

Therefore, it is necessary to develop a barrel of a twin-screw extruder to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a double screw extruder's barrel to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the machine barrel body of the double-screw extruder comprises a machine barrel body, wherein a through barrel hole is formed in the machine barrel body, the cross section of the machine barrel body is rectangular, and mounting grooves are formed in the periphery of the machine barrel body;

the mounting groove is characterized in that a heat conducting wall is arranged between the mounting groove and the barrel hole, the heat conducting wall and the barrel body of the machine barrel are integrally formed, a heating device is arranged in the mounting groove, and a fixing device is arranged between the heating device and the mounting groove.

Furthermore, the heating device comprises a heating cover plate, a plurality of heating conduits are arranged between the heating cover plate and the heat conducting wall, heating resistors are arranged in the heating conduits, the heating conduits are fixedly connected with the heating cover plate, and 1/2 heat conducting grooves with the area equal to that of the heating conduits are formed in the surface of the heat conducting wall.

Further, the cylinder body and the heating cover plate are made of the same material and are made of heat insulation materials, and the heat conduction wall is made of heat conduction materials.

Furthermore, a plug cord is arranged on one side of the heating cover plate, the plurality of heating resistors are electrically connected with an external power supply through the plug cord, and the plurality of heating resistors are arranged in parallel.

Further, fixing device includes some fixed blocks of heating apron top and top both sides activity grafting, and mounting groove inner wall set up with fixed block assorted fixed slot, one side of fixed block is the slope form setting, be connected with first spring between fixed block and the heating apron, one side fixedly connected with push rod of fixed block, and the heating apron surface set up with push rod assorted push away the groove, push rod one end is the cavity setting, and pushes away the dead lever that the inslot portion fixedly connected with activity runs through the push rod.

Furthermore, a limiting block is movably inserted into one side of the fixed rod, which is close to one end of the fixed rod, a second spring is connected between the limiting block and the fixed rod, and the surface of the limiting block is in a slope shape.

Furthermore, the fixing device further comprises a T-shaped tool rod, the cross sections of the T-shaped tool rod, the push rod and the fixing rod are all arranged in a rectangular shape, and one end of the T-shaped tool rod is matched with the hollow position of the push rod.

Further, be provided with the sealed pad of nylon between heating apron and the mounting groove inner wall, the sealed both sides of filling up of nylon imbed respectively inside heating apron and the mounting groove.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be equipped with heating device, heat the inside heat conduction wall of mounting groove through heating device to the raw materials of extruding the transport to the barrel heats, in time carries out the thermal compensation, thereby the raw materials temperature that effectual messenger extruded is unanimous with required temperature, prevents that the raw materials temperature from reducing to lead to the raw materials extravagant, influences the article yield.

2. The utility model discloses a heating resistor heats the heat conduction wall to inside making the heat get into the barrel hole, heating the inside material of extruding of barrel hole, the raw materials temperature of extruding is unanimous with required temperature, prevents that the raw materials temperature from reducing and leading to the raw materials extravagant, influences the article yield.

3. The utility model discloses a be equipped with fixing device, be favorable to fixing between fixing device will heating device and the mounting groove through fixing device, be convenient for dismantle the installation to heating device to be convenient for change heating resistor, and make heating resistor be close to the barrel hole more inside, increase the heating effect, reduce the energy loss, improve raw materials extrusion efficiency.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a cross-sectional view of the overall structure of an embodiment of the present invention;

FIG. 2 shows an enlarged view of portion A of FIG. 1 in accordance with an embodiment of the present invention;

fig. 3 shows an enlarged view of part B of fig. 2 according to an embodiment of the present invention;

in the figure: 1. a barrel body of the machine barrel; 2. a cylinder bore; 3. mounting grooves; 4. a heat conducting wall; 5. heating the cover plate; 6. heating the conduit; 7. a plug cord; 8. a fixed block; 9. fixing grooves; 10. a first spring; 11. a push rod; 12. pushing the groove; 13. fixing the rod; 14. a limiting block; 15. a second spring; 16. a T-shaped tool bar; 17. a nylon gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a double screw extruder barrel, as shown in figure 1, comprising a barrel body 1, wherein bolt holes are further arranged at the top and the top of the barrel body 1, the barrel body is fixed with an external shell by bolts, a through barrel hole 2 is arranged inside the barrel body 1, the barrel hole 2 is a double-circle combination, the cross section of the barrel body 1 is rectangular, and mounting grooves 3 are arranged around the barrel body;

a heat conducting wall 4 is arranged between the mounting groove 3 and the cylinder hole 2, the heat conducting wall 4 and the cylinder body 1 are integrally formed, a heating device is arranged in the mounting groove 3, and a fixing device is arranged between the heating device and the mounting groove 3;

fixing a heating device inside a mounting groove 3 of a machine barrel body 1 by adopting a fixing device, heating a heat conducting wall 4 inside the mounting groove 3 through the heating device, and conveying heat to the inside of a barrel hole 2 through the heat conducting wall 4, so that the raw material extruded and conveyed by the machine barrel body 1 is heated, and thermal compensation is performed in time;

the utility model discloses a be equipped with heating device, heat 3 inside heat conduction walls 4 of mounting groove through heating device to the raw materials of carrying are extruded to barrel 1 heats, in time carries out the thermal compensation, thereby the raw materials temperature that effectual messenger extruded is unanimous with required temperature, prevents that the raw materials temperature reduction from leading to the raw materials extravagant, influences the article yield.

As shown in fig. 1 and fig. 2, the heating device includes a heating cover plate 5, a plurality of heating conduits 6 are disposed between the heating cover plate 5 and the heat conducting wall 4, heating resistors are disposed inside the heating conduits 6, the heating conduits 6 are fixedly connected with the heating cover plate 5, and heat conducting grooves 1/2 corresponding to the area of the heating conduits 6 are formed on the surface of the heat conducting wall 4; the machine barrel body 1 and the heating cover plate 5 are made of the same material and are made of heat insulation materials, and the heat conduction wall 4 is made of heat conduction materials; a plug cord 7 is arranged on one side of the heating cover plate 5, a plurality of heating resistors are electrically connected with an external power supply through the plug cord 7, and the plurality of heating resistors are arranged in parallel;

when the interior of the cylinder body 1 of the machine cylinder is heated, the plug wire 7 is connected with an external power supply, the heating resistor in the heating guide pipe 6 is electrified through the external power supply, heat is generated through the heating resistor, the heating guide pipe 6 and the heat conducting wall 4 are conducted, the heat enters the cylinder hole 2, and materials extruded from the interior of the cylinder hole 2 are heated;

the utility model discloses a heating resistor heats heat conduction wall 4 to make the heat get into 2 insides of barrel hole, heat the inside material of extruding of barrel hole 2, the raw materials temperature of extruding is unanimous with required temperature, prevents that the raw materials temperature from reducing and leading to the raw materials extravagant, influences article yield.

As shown in fig. 2 and 3, the fixing device includes fixing blocks 8 movably inserted into the top and two sides of the top of the heating cover plate 5, fixing grooves 9 matched with the fixing blocks 8 are formed in the inner wall of the mounting groove 3, one side of each fixing block 8 is arranged in a slope shape, a first spring 10 is connected between each fixing block 8 and the heating cover plate 5, a push rod 11 is fixedly connected to one side of each fixing block 8, a push groove 12 matched with the push rod 11 is formed in the surface of the heating cover plate 5, one end of each push rod 11 is arranged in a hollow shape, and a fixing rod 13 movably penetrating through the push rod 11 is fixedly connected to the inside of each push groove 12; a limiting block 14 is movably inserted at one side of the fixed rod 13 close to one end, a second spring 15 is connected between the limiting block 14 and the fixed rod 13, and the surface of the limiting block 14 is in a slope shape; the fixing device further comprises a T-shaped tool rod 16, the cross sections of the T-shaped tool rod 16, the push rod 11 and the fixing rod 13 are all arranged in a rectangular shape, one end of the T-shaped tool rod 16 is matched with the hollow position of the push rod 11, a nylon sealing gasket 17 is arranged between the heating cover plate 5 and the inner wall of the mounting groove 3, and two sides of the nylon sealing gasket 17 are respectively embedded into the heating cover plate 5 and the mounting groove 3;

when the heating device is fixed, firstly, the nylon sealing gasket 17 is arranged in the mounting groove 3, then the heating cover plate 5 is arranged in the mounting groove 3, the fixing block 8 is stressed to shrink and enter the heating cover plate 5, when the fixing block 8 moves to the position of the fixing groove 9, the nylon sealing gasket 17 pops up under the action of the first spring 10 and enters the inside of the fixing groove 9, the nylon sealing gasket 17 enters the inside of the heating cover plate 5, the space between the heating cover plate 5 and the mounting groove 3 is sealed through the nylon sealing gasket 17, heat loss is prevented, the heating conduit 6 is embedded in the heat conducting groove, the heat conducting effect on the heat conducting wall 4 is increased, when the heating cover plate 5 is disassembled, the T-shaped tool rod 16 is inserted into the push rod 11, the T-shaped tool rod 16 is pushed, the push rod 11 pushes the fixing block 8 out of the inside of the fixing groove 9 and moves to the position of the limiting block 14, and the limiting block 14 is extruded into the fixing rod 13, continuing to move the push rod 11 to enable the limit block 14 to enter the hollow end of the push rod 11, then pulling off the T-shaped tool rod 16, popping up the limit block 14, fixing the push rod 11, preventing the fixed block 8 from retracting, and thus detaching the heating device;

the utility model discloses a be equipped with fixing device, be favorable to fixing between fixing device will heating device and mounting groove 3 through fixing device, be convenient for dismantle the installation to heating device to be convenient for change heating resistor, and make heating resistor be close to 2 inside the barrel holes more, increase the heating effect, reduce the energy loss, improve raw materials extrusion efficiency.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A barrel of a twin-screw extruder, comprising a barrel (1), characterized in that: a through barrel hole (2) is formed in the barrel body (1), the cross section of the barrel body (1) is rectangular, and mounting grooves (3) are formed in the periphery of the barrel body;

the heating device is characterized in that a heat conducting wall (4) is arranged between the mounting groove (3) and the barrel hole (2), the heat conducting wall (4) and the barrel body (1) of the machine barrel are integrally formed, a heating device is arranged inside the mounting groove (3), and a fixing device is arranged between the heating device and the mounting groove (3).

2. The barrel of a twin screw extruder as set forth in claim 1, wherein: the heating device comprises a heating cover plate (5), a plurality of heating guide pipes (6) are arranged between the heating cover plate (5) and the heat conducting wall (4), heating resistors are arranged inside the heating guide pipes (6), the heating guide pipes (6) are fixedly connected with the heating cover plate (5), and 1/2 heat conducting grooves with the area of the heating guide pipes (6) are formed in the surface of the heat conducting wall (4).

3. The barrel of a twin screw extruder as set forth in claim 2, wherein: the machine barrel body (1) and the heating cover plate (5) are made of the same material and are made of heat insulation materials, and the heat conduction wall (4) is made of heat conduction materials.

4. The barrel of a twin screw extruder as set forth in claim 2, wherein: plug cords (7) are arranged on one side of the heating cover plate (5), the heating resistors are electrically connected with an external power supply through the plug cords (7), and the heating resistors are arranged in parallel.

5. The barrel of a twin screw extruder as set forth in claim 2, wherein: fixing device includes heating apron (5) top and some fixed block (8) of top both sides activity grafting, and mounting groove (3) inner wall seted up with fixed block (8) assorted fixed slot (9), one side of fixed block (8) is the slope form setting, be connected with first spring (10) between fixed block (8) and the heating apron (5), one side fixedly connected with push rod (11) of fixed block (8), and heating apron (5) surface set up with push rod (11) assorted push away groove (12), push rod (11) one end sets up for cavity, and pushes away dead lever (13) that the inside fixedly connected with activity of groove (12) runs through push rod (11).

6. The barrel of a twin screw extruder as set forth in claim 5, wherein: a limiting block (14) is movably inserted into one side of the fixed rod (13) close to one end, a second spring (15) is connected between the limiting block (14) and the fixed rod (13), and the surface of the limiting block (14) is in a slope shape.

7. The barrel of a twin screw extruder as set forth in claim 5, wherein: the fixing device further comprises a T-shaped tool rod (16), the cross sections of the T-shaped tool rod (16), the push rod (11) and the fixing rod (13) are all arranged in a rectangular shape, and one end of the T-shaped tool rod (16) is matched with the hollow position of the push rod (11).

8. The barrel of a twin screw extruder as set forth in claim 2, wherein: be provided with nylon sealing gasket (17) between heating apron (5) and mounting groove (3) inner wall, the both sides of nylon sealing gasket (17) are embedded into inside heating apron (5) and mounting groove (3) respectively.