Screw extruder

Abstract

The utility model relates to the technical field of extruders, and discloses a screw extruder which comprises a machine barrel and a connecting seat, the machine barrel comprises a first barrel body and a second barrel body, the second barrel body is arranged on the first barrel body and detachably connected with the first barrel body, the first barrel body is hinged to the second barrel body through a connecting base, and the second barrel body can rotate around the connecting base. When the inside of the cylinder of the screw extruder has the problems of material blockage, damage and the like or the inside of the cylinder needs to be cleaned thoroughly, the first cylinder body and the second cylinder body can be separated, then the second cylinder body is turned over by a certain angle, at the moment, the first containing groove is opened, the screw in the cylinder containing cavity is exposed, and an operator can take out the screw from the notch of the first containing groove. And the screw does not need to be pulled out of the containing cavity in the axial direction of the screw, operation is convenient, and therefore the screw extruder has the advantage of being easy to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a screw extruder. Background Art

[0002] A screw extruder consists of a barrel and a screw. The screw is housed within the barrel and can rotate about its axis. The screw extruder rotates to extrude the material from the barrel. In related technologies, the barrel is a one-piece structure. When problems such as blockage or damage occur inside the barrel, or when the barrel requires thorough cleaning, the entire screw must be pulled out from the rear of the barrel along its axis. This process can easily lead to damage from collisions and friction. Consequently, screw extruders with this one-piece barrel structure present significant maintenance challenges. Utility Model Content

[0003] The primary purpose of the utility model is to provide a screw extruder that is easy to maintain.

[0004] In order to achieve the above-mentioned object, the utility model provides a screw extruder having a first direction, comprising a barrel, a screw and a connecting seat;

[0005] The barrel comprises a first barrel and a second barrel, the second barrel being arranged on the first barrel and detachably connected to the first barrel, the first barrel being provided with a first receiving groove on a side facing the second barrel, and the second barrel being provided with a second receiving groove on a side facing the first barrel, the first receiving groove and the second receiving groove being connected to form a receiving chamber;

[0006] The screw is disposed in the accommodating cavity, and has a first axis, and is capable of rotating around the first axis;

[0007] The connecting seat is located on one side of the barrel in the first direction. The first cylinder is hinged to the second cylinder through the connecting seat, and the second cylinder can rotate around the connecting seat.

[0008] In a specific embodiment of the present invention, the connecting seat includes a first seat body and a second seat body, the second seat body is hinged to the first seat body, and the second seat body can rotate around a second axis, the second axis is parallel to the first axis, the first seat body is fixedly connected to the first cylinder, and the second seat body is fixedly connected to the second cylinder.

[0009] In a specific embodiment of the present invention, a first connecting member is further included. In the first direction, the first connecting member and the connecting seat are respectively located on both sides of the barrel, and the first connecting member is detachably connected to the first barrel and the second barrel.

[0010] In a specific embodiment of the present invention, a second connecting member is further included;

[0011] The first cylinder includes a first sub-cylinder, and a first groove is provided on the side of the first sub-cylinder facing the second cylinder. There are multiple first sub-cylinders, and the multiple first sub-cylinders are arranged along the first axis. The multiple first grooves are connected to form the first accommodating groove, and two adjacent first sub-cylinders are connected and fixed by the second connecting piece.

[0012] In a specific embodiment of the present invention, a third connecting member is further included;

[0013] The second cylinder includes a second sub-cylinder, and a second groove is provided on a side of the second sub-cylinder facing the first cylinder. There are multiple second sub-cylinders, and the multiple second sub-cylinders are arranged along the first axis. The multiple second grooves are connected to form a second receiving groove, and two adjacent second sub-cylinders are connected and fixed by the third connecting member.

[0014] Wherein, one of the second sub-cylinders is arranged on one of the first sub-cylinders and connected to the first sub-cylinder.

[0015] In a specific embodiment of the present invention, there are multiple connecting seats, and the first sub-cylinder and the second sub-cylinder that are connected to each other are connected through at least two connecting seats, wherein the first seat is fixedly connected to the first sub-cylinder, and the second seat is fixedly connected to the second sub-cylinder.

[0016] In a specific embodiment of the present invention, there are multiple first connecting members, and the first sub-cylinder and the second sub-cylinder that are connected are connected by at least two of the first connecting members.

[0017] In a specific embodiment of the present invention, the first sub-cylinder has a first water inlet channel, a first water outlet channel, a first conveying channel and a second conveying channel;

[0018] The water inlet of the first water inlet channel and the water outlet of the first water outlet channel are located on a side of the first sub-cylinder away from the second sub-cylinder, and the first water inlet channel and the first water outlet channel are both located at the same end of the first sub-cylinder on the first axis;

[0019] Wherein, the first conveying channel and the second conveying channel both extend along the first axis, and the first conveying channel and the second conveying channel are connected, one end of the first conveying channel along the first axis is connected to the first water inlet channel, and one end of the second conveying channel along the first axis is connected to the first water outlet channel.

[0020] In a specific embodiment of the present invention, the second sub-cylinder has a second water inlet channel, a second water outlet channel and a third delivery channel;

[0021] The water inlet of the second water inlet channel and the water outlet of the second water outlet channel are located on a side of the second sub-cylinder away from the first sub-cylinder, and the second water inlet channel and the second water outlet channel are respectively located at two ends of the second cylinder on the first axis;

[0022] The third conveying channel extends along the first axis, and two ends of the third conveying channel on the first axis are respectively connected to the second water inlet channel and the second water outlet channel.

[0023] In a specific embodiment of the present invention, the second sub-cylinder further has a feed channel, which is connected to the second trough body, and the feed port of the feed channel is located on a side of the second sub-cylinder away from the first sub-cylinder.

[0024] The screw extruder of the present invention has the following advantages compared with the prior art:

[0025] The screw extruder of the present invention has a barrel comprising a first barrel and a second barrel, wherein one end of the first barrel in the first direction is hinged to the second barrel via a connecting seat, and the first barrel and the second barrel are detachably connected. Therefore, when problems such as blockage or damage occur inside the barrel or the inside of the barrel needs to be thoroughly cleaned, the first barrel and the second barrel can be separated, and then the second barrel can be rotated a certain angle. At this time, the first receiving groove is opened, and the screw in the barrel receiving chamber is exposed. The operator can remove the screw from the notch of the first receiving groove without having to pull the screw out of the receiving chamber along the axial direction of the screw (i.e., without having to pull the screw out of the receiving chamber along the first axis direction). The operation is convenient, and thus the screw extruder has the characteristic of being easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of a screw extruder according to an embodiment of the present invention;

[0027] Figure 2 This is a three-dimensional diagram of the screw extruder of the utility model embodiment when the barrel is open;

[0028] Figure 3 This is a front view of the screw extruder of the utility model embodiment when the barrel is open;

[0029] Figure 4 This is a three-dimensional diagram of the connecting seat of the embodiment of the utility model;

[0030] Figure 5 This is a three-dimensional diagram of the first sub-cylinder of the embodiment of the present utility model;

[0031] Figure 6 This is a left side view of the first sub-cylinder of the embodiment of the present utility model;

[0032] Figure 7 This is an embodiment of the utility model Figure 6 Cross-sectional view of AA;

[0033] Figure 8 This is a three-dimensional diagram of the second sub-cylinder of the embodiment of the present utility model;

[0034] Figure 9 This is a left side view of the second sub-cylinder of the embodiment of the present utility model;

[0035] Figure 10 This is an embodiment of the utility model Figure 9 Cross-sectional view of the BB.

[0036] In the figure, X, first direction; 1, barrel; 100, accommodating chamber; 11, first cylinder; 110, first accommodating tank; 111, first sub-cylinder; 1110, first tank; 1111, first water inlet channel; 1112, first water outlet channel; 1113, first conveying channel; 1114, second conveying channel; 12, second cylinder; 120, second accommodating tank; 121, second sub-cylinder; 1210, second tank; 1211, second water inlet channel; 1212, second water outlet channel; 1213, third conveying channel; 1214, feeding channel; 122, handle; 2, screw; 201, first axis; 3, connecting seat; 301, second axis; 31, first seat; 32, second seat; 4, first connecting piece; 5, second connecting piece; 6, third connecting piece. DETAILED DESCRIPTION

[0037] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0038] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" refers to two or more, unless otherwise clearly and specifically defined.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0040] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being 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 the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the examples, "parallel" refers to the state where the angle formed between two lines, between a line and a plane, or between two planes is between -1° and 1°. Furthermore, "perpendicular" refers to the state where the angle formed between two lines, between a line and a plane, or between two planes is between 89° and 91°. Equal distances, equal angles, or equal areas refer to the state where the tolerance range is between -1% and 1%.

[0042] like Figures 1 to 10As shown, a screw 2 extruder of a preferred embodiment of the present invention has a first direction X, including a barrel 1, a screw 2 and a connecting seat 3; the barrel 1 includes a first barrel 11 and a second barrel 12, the second barrel 12 is arranged on the first barrel 11 and is detachably connected to the first barrel 11, and a first accommodating groove 110 is provided on a side of the first barrel 11 facing the second barrel 12, and a second accommodating groove 120 is provided on a side of the second barrel 12 facing the first barrel 11, and the first accommodating groove 110 and the second accommodating groove 120 are connected to form an accommodating chamber 100; the screw 2 is arranged in the accommodating chamber 100, and the screw 2 has a first axis 201, and the screw 2 can rotate around the first axis 201; the connecting seat 3 is located on one side of the barrel 1 in the first direction X, the first barrel 11 is hinged to the second barrel 12 through the connecting seat 3, and the second barrel 12 can rotate around the connecting seat 3.

[0043] Based on the above structure, when problems such as blockage or damage occur inside the barrel 1 of the screw 2 extruder or the inside of the barrel 1 needs to be thoroughly cleaned, the first barrel 11 and the second barrel 12 can be separated, and then the second barrel 12 can be flipped at a certain angle. At this time, the first receiving groove 110 is open, and the screw 2 in the receiving cavity 100 of the barrel 1 is exposed. The operator can take out the screw 2 from the notch of the first receiving groove 110 without pulling the screw 2 out of the receiving cavity 100 along the axial direction of the screw 2 (that is, there is no need to pull the screw 2 out of the receiving cavity 100 along the first axis 201), which is convenient to operate. Therefore, the screw 2 extruder has the characteristic of easy maintenance.

[0044] like Figure 4 As shown, the connecting seat 3 includes a first seat body 31 and a second seat body 32, the second seat body 32 is hinged on the first seat body 31, and the second seat body 32 can rotate around the second axis 301, the second axis 301 is parallel to the first axis 201, the first seat body 31 is fixedly connected to the first cylinder 11, and the second seat body 32 is fixedly connected to the second cylinder 12. As one implementation method of the present application, the first seat body 31 and the first cylinder 11, the second seat body 32 and the second cylinder 12 are all fixedly connected by screws, which has a simple structure and is easy to assemble; and since the second seat body 32 can rotate around the second axis 301, Figure 1 As shown in the visual, after the first cylinder 11 and the second cylinder 12 are no longer connected, the operator lifts the second cylinder 12 upward to rotate the second cylinder 12 around the second axis 301. At this time, as shown in FIG. Figure 2 As shown, the first receiving groove 110 is open, and the screw 2 in the receiving chamber 100 of the barrel 1 is exposed.

[0045] like Figure 1As shown, the screw 2 extruder also includes a first connecting member 4. In the first direction X, the first connecting member 4 and the connecting seat 3 are respectively located on both sides of the barrel 1, and the first connecting member 4 is detachably connected to the first barrel 11 and the second barrel 12; as one of the implementation methods of the present application, the first connecting member 4 is a screw, wherein the first barrel 11 is provided with a first threaded seat, and the second barrel 12 is provided with a first mounting seat, and the first mounting seat is provided with a through hole, and the axis of the through hole and the threaded hole on the first threaded seat extends vertically, and the screw passes through the through hole and is connected to the hole wall of the threaded hole, thereby realizing the detachable connection of the first barrel 11 and the second barrel 12. The detachable connection of the first barrel 11 and the second barrel 12 is realized in this way, the structure is simple, the installation and disassembly operations are convenient, and the first barrel 11 and the second barrel 12 can be tightly fitted.

[0046] like Figure 1 and Figure 2 As shown, the screw 2 extruder also includes a second connecting member 5; the first barrel 11 includes a first sub-barrel 111, and the first sub-barrel 111 is provided with a first groove body 1110 on the side facing the second barrel 12. The number of first sub-barrels 111 is five, and the five first sub-barrels 111 are arranged along the first axis 201. The five first groove bodies 1110 form a first accommodating groove 110, and two adjacent first sub-barrels 111 are connected and fixed by the second connecting member 5. As one of the implementation methods of the present application, the second connecting member 5 is also a screw, that is, the two adjacent first sub-barrels 111 are fixed by threaded connection. This is the prior art and this application will not go into too much detail about it; the first barrel 11 of this structure, the number of its first sub-barrels 111 can also be three, seven or more, that is, its overall length can be adjusted by adjusting the number of the first sub-barrels 111, thereby the first barrel 11 can be flexibly assembled and has a wide range of applications.

[0047] like Figure 1 and Figure 2As shown, the screw 2 extruder also includes a third connecting member 6; the second barrel 12 includes a second sub-barrel 121, and the second sub-barrel 121 is provided with a second groove 1210 on the side facing the first barrel 11. The number of the second sub-barrels 121 is five, and the five second sub-barrels 121 are arranged along the first axis 201. The five second grooves 1210 form a second receiving groove 120, and two adjacent second sub-barrels 121 are connected and fixed by the third connecting member 6; wherein, one second sub-barrel 121 is provided on one first sub-barrel 111 and connected On the first sub-cylinder 111; as one of the implementation methods of the present application, the third connecting member 6 is also a screw, that is, the two adjacent second sub-cylinders 121 are fixed by threaded connection, which is the prior art and the present application will not elaborate on it in detail; the second cylinder 12 of this structure, the number of its second sub-cylinders 121 is adapted to the number of the first sub-cylinders 111, and the second cylinder 12 can also adjust its overall length by adjusting the number of the second sub-cylinders 121. The second cylinder 12 also has the characteristics of flexible assembly and wide application range.

[0048] like Figure 1 As shown, the interconnected first sub-cylinder 111 and the second sub-cylinder 121 are connected through two connecting seats 3, wherein the first seat 31 is fixedly connected to the first sub-cylinder 111, and the second seat 32 is fixedly connected to the second sub-cylinder 121, that is, the first cylinder 11 is connected to the second cylinder 12 through multiple connecting seats 3, and the connection between the two is stable. On the basis of this structure, when a problem occurs somewhere in the accommodating cavity 100, the third connecting piece 6 connected to the adjacent second sub-cylinder 121 on the corresponding second sub-cylinder 121 can be removed, and then the corresponding second sub-cylinder 121 can be flipped over to open the corresponding first accommodating groove 110 for troubleshooting. There is no need to fully open the second cylinder 12, which is easy to operate and can greatly save troubleshooting time.

[0049] like Figure 1 As shown, the first sub-cylinder 111 and the second sub-cylinder 121 are connected to each other through three first connecting members 4, that is, the first cylinder 11 and the second cylinder 12 are connected through multiple first connecting members 4, thereby ensuring the sealing between the two.

[0050] like Figures 5 to 7As shown, the first sub-cylinder 111 has a first water inlet channel 1111, a first water outlet channel 1112, a first conveying channel 1113 and a second conveying channel 1114; the water inlet of the first water inlet channel 1111 and the water outlet of the first water outlet channel 1112 are located on the side of the first sub-cylinder 111 away from the second sub-cylinder 121, and the first water inlet channel 1111 and the first water outlet channel 1112 are both located at the same end of the first sub-cylinder 111 on the first axis 201; wherein the first conveying channel 1113 and the second conveying channel 1114 both extend along the first axis 201, and the first conveying channel 1113 and the second conveying channel 1114 are both located on the first axis 201. The channel 1114 is connected, the first conveying channel 1113 is connected to the first water inlet channel 1111 at one end along the first axis 201, and the second conveying channel 1114 is connected to the first water outlet channel 1112 at one end along the first axis 201; in actual application, the cooling water enters the first conveying channel 1113 through the first water inlet channel 1111, and then is discharged through the first water outlet channel 1112 through the second conveying channel 1114. During this process, the cooling water exchanges heat with the first sub-cylinder 111, and can take away the heat generated inside the accommodating cavity 100 through heat exchange, ensuring that the temperature at various locations in the accommodating cavity 100 meets the production requirements.

[0051] Optionally, one end of the first delivery channel 1113 away from the first water inlet channel 1111 is connected to one end of the second delivery channel 1114 away from the first water outlet channel 1112, thereby making the flow path of the cooling water longer and improving the heat exchange effect.

[0052] Further, such as Figures 8 to 10 As shown, the second sub-cylinder 121 has a second water inlet channel 1211, a second water outlet channel 1212 and a third delivery channel 1213; the water inlet of the second water inlet channel 1211 and the water outlet of the second water outlet channel 1212 are located on the side of the second sub-cylinder 121 away from the first sub-cylinder 111, and the second water inlet channel 1211 and the second water outlet channel 1212 are respectively located at both ends of the first axis 201 of the second cylinder 12; the third delivery channel 1213 extends along the first axis 201, and the third delivery channel 1213 is located at the first axis 201. The two ends of the first axis 201 are respectively connected to the second water inlet channel 1211 and the second water outlet channel 1212; in actual application, cooling water can also be introduced into the second sub-cylinder 121 to exchange heat with the second sub-cylinder 121. Specifically, the cooling water enters from the second water inlet channel 1211 and is output from the second water outlet channel 1212 through the third delivery channel 1213. In this way, the heat generated inside the accommodating cavity 100 can be taken away by heat exchange, further ensuring that the temperature at various locations in the accommodating cavity 100 meets the production requirements.

[0053] like Figure 1As shown, the second sub-cylinder 121 also has a feed channel 1214, which is connected to the second trough body 1210. The feed port of the feed channel 1214 is located on the side of the second sub-cylinder 121 away from the first sub-cylinder 111. In actual applications, the required material can be injected into the accommodating cavity 100 through the feed channel 1214. Since each second sub-cylinder 121 is provided with a feed channel 1214, the material can be injected into the accommodating cavity 100 through the corresponding feed channel 1214 according to actual production needs, and the operation is flexible.

[0054] like Figure 1 As shown, the second cylinder 12 also includes a handle 122. Each second sub-cylinder 121 is provided with a handle 122 on the side facing away from the first sub-cylinder 111. The arrangement of the handle 122 facilitates the operator to flip the second sub-cylinder 121 or the entire second cylinder 12.

[0055] In this application, if Figure 1 As shown, the number of screws 2 is two, that is, the screw 2 extruder is a twin-screw 2 extruder. Figures 7 to 10 As shown, the first water inlet channel 1111, the first water outlet channel 1112, the first conveying channel 1113 and the second conveying channel 1114 constitute a first cooling water channel, the second water inlet channel 1211, the second water outlet channel 1212 and the third conveying channel 1213 constitute a second cooling water channel, and the number of first cooling water channels and second cooling water channels are both two. One first cooling water channel corresponds to one screw 2, and one second cooling water channel corresponds to one screw 2 to ensure uniform heat exchange.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A screw extruder having a first direction (X), characterized in that It comprises a barrel (1), a screw (2) and a connecting seat (3); The barrel (1) comprises a first barrel (11) and a second barrel (12), wherein the second barrel (12) is arranged on the first barrel (11) and is detachably connected to the first barrel (11), a first receiving groove (110) is provided on a side of the first barrel (11) facing the second barrel (12), and a second receiving groove (120) is provided on a side of the second barrel (12) facing the first barrel (11), and the first receiving groove (110) and the second receiving groove (120) are connected to form a receiving chamber (100); The screw (2) is arranged in the accommodating cavity (100), the screw (2) has a first axis (201), and the screw (2) is capable of rotating around the first axis (201); The connecting seat (3) is located on one side of the barrel (1) in the first direction (X); the first barrel (11) is hinged to the second barrel (12) through the connecting seat (3); and the second barrel (12) is capable of rotating around the connecting seat (3).

2. The screw extruder according to claim 1, characterized in that The connecting seat (3) comprises a first seat body (31) and a second seat body (32), wherein the second seat body (32) is hinged to the first seat body (31), and the second seat body (32) is capable of rotating around a second axis (301), wherein the second axis (301) is parallel to the first axis (201), the first seat body (31) is fixedly connected to the first cylinder (11), and the second seat body (32) is fixedly connected to the second cylinder (12).

3. The screw extruder according to claim 2, characterized in that The screw extruder further comprises a first connecting member (4). In the first direction (X), the first connecting member (4) and the connecting seat (3) are respectively located on both sides of the barrel (1). The first connecting member (4) is detachably connected to the first barrel (11) and the second barrel (12).

4. The screw extruder according to claim 3, characterized in that Also includes a second connecting member (5); The first cylinder (11) includes a first sub-cylinder (111), and a first groove (1110) is provided on a side of the first sub-cylinder (111) facing the second cylinder (12). There are multiple first sub-cylinders (111), and the multiple first sub-cylinders (111) are arranged along the first axis (201). The multiple first grooves (1110) are connected to form the first receiving groove (110), and two adjacent first sub-cylinders (111) are connected and fixed by the second connecting member (5).

5. The screw extruder according to claim 4, characterized in that Also includes a third connecting member (6); The second cylinder (12) comprises a second sub-cylinder (121), a second groove (1210) is provided on a side of the second sub-cylinder (121) facing the first cylinder (11), the number of the second sub-cylinders (121) is multiple, the multiple second sub-cylinders (121) are arranged along the first axis (201), the multiple second grooves (1210) are connected to form the second receiving groove (120), and two adjacent second sub-cylinders (121) are connected and fixed by the third connecting member (6); Wherein, a second sub-cylinder (121) is provided on a first sub-cylinder (111) and connected to the first sub-cylinder (111).

6. The screw extruder according to claim 5, characterized in that There are multiple connecting seats (3), and the first sub-cylinder (111) and the second sub-cylinder (121) connected to each other are connected through at least two connecting seats (3), wherein the first seat (31) is fixedly connected to the first sub-cylinder (111), and the second seat (32) is fixedly connected to the second sub-cylinder (121).

7. The screw extruder according to claim 5, characterized in that The number of the first connecting members (4) is plural, and the first sub-cylinder (111) and the second sub-cylinder (121) connected to each other are connected via at least two of the first connecting members (4).

8. The screw extruder according to claim 5, characterized in that The first sub-cylinder (111) has a first water inlet channel (1111), a first water outlet channel (1112), a first delivery channel (1113) and a second delivery channel (1114); The water inlet of the first water inlet channel (1111) and the water outlet of the first water outlet channel (1112) are located on a side of the first sub-cylinder (111) away from the second sub-cylinder (121), and the first water inlet channel (1111) and the first water outlet channel (1112) are both located at the same end of the first sub-cylinder (111) on the first axis (201); The first conveying channel (1113) and the second conveying channel (1114) both extend along the first axis (201), and the first conveying channel (1113) and the second conveying channel (1114) are connected; one end of the first conveying channel (1113) along the first axis (201) is connected to the first water inlet channel (1111), and one end of the second conveying channel (1114) along the first axis (201) is connected to the first water outlet channel (1112).

9. The screw extruder according to claim 5, characterized in that The second sub-cylinder (121) has a second water inlet channel (1211), a second water outlet channel (1212) and a third delivery channel (1213); The water inlet of the second water inlet channel (1211) and the water outlet of the second water outlet channel (1212) are located on a side of the second sub-cylinder (121) away from the first sub-cylinder (111), and the second water inlet channel (1211) and the second water outlet channel (1212) are respectively located at two ends of the second cylinder (12) on the first axis (201); The third conveying channel (1213) extends along the first axis (201), and the two ends of the third conveying channel (1213) on the first axis (201) are respectively connected to the second water inlet channel (1211) and the second water outlet channel (1212).

10. The screw extruder according to claim 5, characterized in that The second sub-cylinder (121) further comprises a feed channel (1214), wherein the feed channel (1214) is connected to the second tank (1210), and the feed port of the feed channel (1214) is located on a side of the second sub-cylinder (121) away from the first sub-cylinder (111).

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