Extruder barrel structure

Abstract

This utility model discloses an extruder barrel structure, comprising a plurality of barrel bodies that are detachably connected in sequence. Each barrel body is an integrally molded structure, including a main body. A first flange is provided at the first connecting end of the main body, and a second flange is provided at the second connecting end of the main body, detachably connected to the first flange to achieve detachable connection between adjacent barrel bodies. An extrusion channel is formed through the interior of the barrel body along the connection direction. A sealing protrusion is provided on the connecting surface of the first flange, protruding circumferentially along the extrusion channel. A sealing groove is provided on the connecting surface of the second flange, circumferentially along the extrusion channel and adapted to fit the sealing protrusion for insertion into the sealing protrusion. A sealing gasket is provided in the sealing groove. A protective plate is detachably provided around the main body to protect it. This utility model not only has good sealing performance but is also not easily damaged.

Description

Technical Field

[0001] This utility model relates to the field of extruder equipment technology, and specifically to an extruder barrel structure. Background Technology

[0002] Traditional extruder barrels are mostly of a single, integral structure, which presents problems such as high processing difficulty, high maintenance costs, and inconvenient disassembly and assembly. While existing split-type barrels are detachable, material leakage is prone to occur at the flange connections, and sealing performance deteriorates over long-term use, requiring frequent replacement of seals. Furthermore, the barrel body lacks effective protection and is easily damaged by impacts or high-temperature deformation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an extruder barrel structure to solve the problems of poor sealing and easy damage mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] An extruder barrel structure includes a plurality of barrel bodies that are detachably connected in sequence. Each barrel body is an integrally molded structure, comprising a main body. A first flange is provided at the first connecting end of the main body, and a second flange is provided at the second connecting end of the main body, detachably connected to the first flange to achieve detachable connection between adjacent barrel bodies. An extrusion channel is formed through the interior of the barrel body along the connection direction. A sealing protrusion is provided on the connecting surface of the first flange, protruding circumferentially along the extrusion channel. A sealing groove is provided on the connecting surface of the second flange, circumferentially along the extrusion channel and adapted to fit the sealing protrusion for insertion into the sealing protrusion. A sealing gasket is provided in the sealing groove. A protective plate is detachably provided around the main body to protect it.

[0006] Preferably, the first flange has a plurality of connecting through holes along its circumferential direction, and the second flange has a plurality of connecting screw holes that correspond one-to-one with the connecting through holes along its circumferential direction. A flange connecting bolt that is threadedly connected to the connecting screw hole passes between the corresponding connecting screw hole and the connecting through hole.

[0007] Preferably, the first flange has symmetrically arranged positioning posts on its connecting surface, and the second flange has positioning holes at positions corresponding to the positioning posts for inserting the positioning posts.

[0008] Preferably, the side wall of the main body is provided with a threaded countersunk hole, and the protective plate is provided with a countersunk hole at a position corresponding to the threaded countersunk hole. The countersunk hole and the threaded countersunk hole are provided with protective plate connecting bolts that are threadedly connected to the threaded countersunk hole.

[0009] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0010] This invention forms a double seal through the sealing protrusions, sealing grooves, and sealing gaskets, effectively preventing leakage of molten material; the protective plate prevents the barrel body from being directly deformed by force during transportation or operation, and facilitates local replacement and maintenance; the positioning pins and positioning holes enable precise alignment and improve assembly efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after the protective plate has been removed; Figure 3 This is a schematic diagram of the main structure of the barrel of this utility model; Figure 4 This is a schematic diagram of the first flange side structure of the barrel body of this utility model; Figure 5 This is a schematic diagram of the second flange side structure of the barrel body of this utility model.

[0012] The components are: 1. barrel body, 11. first flange, 111. connecting through hole, 112. positioning post, 113. sealing protrusion, 12. second flange, 121. connecting bolt hole, 122. positioning hole, 123. sealing groove, 13. main body, 131. threaded countersunk hole, 14. extrusion channel, 2. protective plate, 21. countersunk hole, 3. protective plate connecting bolt. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] An extruder barrel structure, combined with Figures 1 to 2 As shown, it includes several barrel bodies 1, which are detachably connected in sequence.

[0015] like Figure 3 As shown, the barrel body 1 is an integrally formed structure, including a main body 13. An extrusion channel 14 is provided through the interior of the barrel body 1 along the connection direction. A first flange 11 is provided at the first connecting end of the main body 13, and a second flange 12 is provided at the second connecting end of the main body 13. The second flange 12 is detachably connected to the first flange 11, thereby realizing a detachable connection between adjacent barrel bodies 1.

[0016] Specifically, the edge of the first flange 11 is provided with a number of connecting through holes 111 along the circumferential direction, and the edge of the second flange 12 is provided with a number of connecting screw holes 121 along the circumferential direction. Each connecting screw hole 121 is provided in a one-to-one correspondence with each connecting through hole 111. A flange connecting bolt is provided between the corresponding connecting screw hole 121 and the connecting through hole 111. The flange connecting bolt is threadedly connected to the connecting screw hole 121, thereby realizing the detachable connection between the second flange 12 and the first flange 11.

[0017] The first flange 11 has symmetrically arranged positioning pins 112 on its connecting surface. The second flange 12 has positioning holes 122 at positions corresponding to the positioning pins 112. The positioning holes 122 are adapted to the positioning pins 112 and are used to insert the positioning pins 112, thereby ensuring the precise docking of the second flange 12 and the first flange 11 and improving assembly efficiency.

[0018] like Figure 4 As shown, a sealing protrusion 113 is provided on the connecting surface of the first flange 11, and the sealing protrusion 113 protrudes circumferentially along the extrusion channel 14. Figure 5 As shown, a sealing groove 123 is provided on the connecting surface of the second flange 12. The sealing groove 123 is circumferentially opened along the extrusion channel 14 and is adapted to the sealing protrusion 113. The sealing groove 123 is used to insert the sealing protrusion 113, and a sealing gasket is provided in the sealing groove 123. The cooperation between the sealing protrusion 113 and the sealing groove 123, as well as the setting of the sealing gasket, form a double sealing structure, which can effectively prevent the leakage of molten material.

[0019] A protective plate 2 is detachably installed around the main body 13. Specifically, the side wall of the main body 13 has a threaded countersunk hole 131, and the protective plate 2 has a countersunk hole 21 at a position corresponding to the threaded countersunk hole 131. A protective plate connecting bolt 3 passes through the countersunk hole 21 and the threaded countersunk hole 131, and the protective plate connecting bolt 3 is threadedly connected to the threaded countersunk hole 131, thereby realizing the detachability of the protective plate 2. The protective plate 2 is used to protect the main body 13, which can prevent the barrel body from being directly deformed by force during transportation or operation, and at the same time facilitates partial replacement and maintenance.

[0020] In use, a sealing gasket is inserted into the sealing groove 123 of the first section of the barrel body 1. The first flange 11 of the second section of the barrel body 1 is aligned with the second flange 12 of the first section of the barrel body 1. The positioning pin 112 is inserted into the positioning hole 122 and fixed by the flange connecting bolts. At the same time, the sealing protrusion 113 is inserted into the sealing groove 123 to press the sealing gasket. Each section of the barrel body 1 is connected in sequence as described above. The protective plate 2 is fixed by the protective plate connecting bolts through the countersunk hole 21 and the threaded countersunk hole 131.

Claims

1. An extruder barrel structure, comprising a plurality of barrel bodies (1) that are detachably connected in sequence; the barrel body (1) is an integrally formed structure, comprising a main body (13), a first flange (11) provided at the first connecting end of the main body (13), and a second flange (12) provided at the second connecting end of the main body (13) that is detachably connected to the first flange (11) to achieve detachable connection between adjacent barrel bodies (1); an extrusion channel (14) is provided through the interior of the barrel body (1) along the connection direction, characterized in that: The first flange (11) has a sealing protrusion (113) that protrudes circumferentially along the extrusion channel (14) on its connecting surface. The second flange (12) has a sealing groove (123) that is opened circumferentially along the extrusion channel (14) and is adapted to the sealing protrusion (113) for inserting into the sealing protrusion (113). A sealing gasket is provided in the sealing groove (123). A protective plate (2) for protecting the main body (13) is detachably provided around the main body (13).

2. The extruder barrel structure according to claim 1, characterized in that: The first flange (11) has several connecting through holes (111) circumferentially opened on its edge, and the second flange (12) has several connecting screw holes (121) circumferentially opened on its edge, which correspond one-to-one with the connecting through holes (111). A flange connecting bolt that is threadedly connected to the connecting screw hole (121) is passed between the corresponding connecting screw hole (121) and the connecting through hole (111).

3. The extruder barrel structure according to claim 1, characterized in that: The first flange (11) has symmetrically arranged positioning pins (112) on its connecting surface, and the second flange (12) has positioning holes (122) that are adapted to the positioning pins (112) and used to insert the positioning pins (112) at the corresponding positions.

4. The extruder barrel structure according to claim 1, characterized in that: The main body (13) has a threaded countersunk hole (131) on its side wall, and a countersunk hole (21) is provided on the protective plate (2) at a position corresponding to the threaded countersunk hole (131). A protective plate connecting bolt (3) that is threadedly connected to the threaded countersunk hole (131) is provided in the countersunk hole (21) and the threaded countersunk hole (131).

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