Intermediate connector spiral conveying structure

Abstract

The utility model discloses an intermediate connector spiral conveying structure which comprises a first charging barrel assembly and a second charging barrel assembly which are matched with each other, the first charging barrel assembly and the second charging barrel assembly are horizontally arranged, and the first charging barrel assembly is oppositely arranged above the second charging barrel assembly; wherein the first charging barrel assembly and the second charging barrel assembly are connected through a middle connecting body, so that the first charging barrel assembly and the second charging barrel assembly are communicated; and an anti-carbonization structure is arranged in the middle connecting body. According to the utility model, the middle connecting body is arranged between the first charging barrel assembly and the second charging barrel assembly so as to communicate the first charging barrel assembly with the second charging barrel assembly; moreover, an anti-carbonization structure is arranged in the middle connecting body, so that the flowing difference between the inner surface and the central part is reduced, the problem of carbonization after the raw materials are stopped can be effectively solved, meanwhile, rotary motion can be performed, the inner surface can be actively cleaned, and the working effect and efficiency are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a spiral conveying structure of an intermediate connector. Background Art

[0002] For the production of plastic products, polymers and other materials are generally processed to a plasticized molten state, and the raw materials are squeezed from the barrel into the mold with the help of the thrust of the screw, and the products are obtained after solidification and shaping. The two barrels of the existing double-barrel injection molding machine are both horizontally set, and the raw materials are directly discharged to the next barrel at the connection structure of the two barrels. The injection molding machine with the above structure is easy to attach to the inner surface of the raw material after it stops, and it will carbonize over time, causing raw material contamination. It takes one or two hours to clean it up by stopping the machine for maintenance, which wastes time. The shutdown for maintenance affects the production progress. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the utility model is to provide an intermediate connecting body spiral conveying structure, in which an intermediate connecting body is arranged between the first barrel assembly and the second barrel assembly to connect the first barrel assembly and the second barrel assembly; and, an anti-carbonization structure is arranged in the intermediate connecting body, which reduces the flow difference between the inner surface and the central part and reduces the residence time, thereby being able to effectively solve the problem of carbonization of the raw materials after pause. At the same time, it can perform rotational motion to actively clean the inner surface, thereby ensuring the working effect and efficiency.

[0005] (II) Technical solution

[0006] The solution adopted by the utility model to solve the above-mentioned technical problems is an intermediate connecting body spiral conveying structure, including a first barrel assembly and a second barrel assembly that cooperate with each other, the first barrel assembly and the second barrel assembly are horizontally arranged, and the first barrel assembly is relatively arranged above the second barrel assembly; wherein, the first barrel assembly and the second barrel assembly are connected by an intermediate connecting body to connect the first barrel assembly and the second barrel assembly; and an anti-carbonization structure is arranged in the intermediate connecting body.

[0007] In some embodiments, the first barrel assembly includes a first barrel arranged horizontally, and a first feeding cavity is arranged along its axial direction; a first feeding screw is arranged in the first feeding cavity, and the first feeding screw can rotate around its own central axis to transport the raw material toward its front end so that it can enter the intermediate connecting body and the second barrel assembly in sequence; a feeding port connected to the first feeding cavity is opened at the tail end of the first barrel; the second barrel assembly includes a second barrel arranged horizontally, and a second feeding cavity is arranged along its axial direction; a second feeding screw is arranged in the second feeding cavity; An injection port connected to the second feeding chamber is provided at the front end of the second barrel, and the second feeding screw can inject molten material into the clamping device through the injection port; the second feeding chamber is located at both ends of which are connected to the intermediate connecting body, and a vacuum chamber and a feeding chamber are formed respectively; the injection port is provided at one end of the feeding chamber away from the vacuum chamber; an exhaust port connected to the vacuum chamber is provided at the tail end of the second barrel; the tail end of the second feeding screw can extend out of the second barrel and be connected to the second driving structure, and the second driving structure can drive the second feeding screw to rotate around its own central axis to inject the molten material into the clamping device.

[0008] By adopting the above scheme, an intermediate connecting body is provided between the first barrel assembly and the second barrel assembly to connect the first barrel assembly and the second barrel assembly; and an anti-carbonization structure is provided in the intermediate connecting body, which reduces the flow difference between the inner surface and the central part, reduces the residence time, and can effectively solve the problem of carbonization after the raw material pauses. At the same time, it can perform rotational motion to actively clean the inner surface, thereby ensuring the working effect and efficiency.

[0009] In some embodiments, the intermediate connector includes a connecting barrel, which is provided with a connecting cavity that is arranged to pass through from top to bottom; the anti-carbonization structure includes a connecting screw adapted to be inside the connecting cavity; and one end of the connecting barrel is fixedly connected to the first barrel assembly, and the other end is fixedly connected to the second barrel assembly; one end of the connecting screw is connected to the first barrel assembly, and the other end is a free end.

[0010] Specifically, the first feeding screw, the second feeding screw and the connecting screw are all spiral structures.

[0011] In some embodiments, the connecting barrel is vertically arranged relative to the first barrel and the second barrel; the connecting screw is also vertically arranged accordingly, so as to more smoothly deliver the raw materials in the first feeding chamber to the second feeding chamber.

[0012] In some embodiments, one end of the connecting screw connected to the first barrel assembly partially extends out of the first barrel assembly; and a screw driving structure is connected to the portion of the connecting screw extending out of the first barrel assembly, and the screw driving structure can drive the connecting screw to rotate around its own central axis.

[0013] By adopting the above scheme, the setting of the screw driving structure can drive the connecting screw to rotate around its own central axis, making the feeding process smoother, and can more effectively solve the problem of carbonization blockage after the raw material pauses, thereby ensuring work efficiency.

[0014] In some embodiments, the first barrel assembly includes a first mounting block for mounting the connecting barrel, a first cavity communicating with the connecting cavity and the first barrel assembly is disposed in the first mounting block, and a first mounting groove for mounting the connecting barrel is disposed at one end of the first cavity close to the connecting barrel; the connecting screw includes an adapting section extending out of the connecting barrel and adapted in the first cavity, and a mounting shaft mounted on the first mounting block is formed at one end of the adapting section away from the connecting barrel; the mounting shaft and the first mounting block are fixedly mounted.

[0015] In some embodiments, the first cavity and the first feeding cavity are coaxially arranged, and the first cavity and the connecting cavity are coaxially arranged.

[0016] In some embodiments, the front end of the first barrel is opened to connect the first feeding chamber and the first cavity; and there is a gap between the front end of the first feeding screw and the adapter section of the connecting screw, so that the first feeding screw can smoothly deliver the raw material to the first cavity and the connecting cavity, so that it can enter the second feeding chamber and be ejected.

[0017] By adopting the above scheme, the first mounting block is fixed to the first barrel by screws, and the connecting screw is fixedly installed by the mounting shaft and the first mounting block, so that the connecting screw can be fixedly set relative to the first barrel to improve the stability of the connecting screw during operation, and the anti-carbonization effect is better.

[0018] In some embodiments, the first mounting block is provided with an axial hole for mounting the mounting shaft, the mounting shaft partially extends out of the first mounting block, and the outer wall portion of the mounting shaft extends radially outward to form an annular protrusion; the annular protrusion abuts against the outer wall of the first mounting block; and the outer wall of the first mounting block is connected to a fixing block capable of pressing the annular protrusion onto the first mounting block; the fixing block is connected to the first mounting block by screws.

[0019] By adopting the above solution, the setting of the annular protrusion can improve the fixation of the connecting screw on the first mounting block; the setting of the fixing block can lock the connecting screw on the first mounting block.

[0020] In some embodiments, the fixing block is provided with an annular groove for adapting to the annular protrusion; and the annular protrusion and the annular groove are clearance-matched, and the mounting shaft and the shaft hole are clearance-matched; thus, the connecting screw can rotate around its own central axis.

[0021] In some embodiments, the second barrel assembly includes a second mounting block for mounting the connecting barrel; a second mounting groove for adapting the connecting barrel is provided in the second mounting block so that the end of the connecting barrel abuts against the outer wall of the second barrel assembly; and the second barrel assembly is provided with a second cavity for connecting the connecting cavity and the second barrel assembly, and the free end of the connecting screw can extend out of the connecting barrel and adapt to the second cavity.

[0022] In some embodiments, the second cavity is located below the connecting cavity and is coaxially arranged.

[0023] By adopting the above scheme, the first cavity and the first feeding cavity are connected, and after the connecting barrel is assembled to the first mounting groove, the connection between the first cavity, the first feeding cavity and the connecting cavity can be realized; and the connecting cavity, the second cavity and the second feeding cavity are connected, and after the connecting barrel is assembled to the second mounting groove, the connection between the first feeding cavity, the first cavity, the connecting cavity, the second cavity and the second feeding cavity can be realized to realize the transportation of raw materials.

[0024] In some embodiments, a portion of the connecting cartridge close to the second cartridge assembly is radially outwardly protruding to form a protrusion, and a portion of the second mounting groove close to the second cartridge assembly is recessed to form a recess matched with the protrusion.

[0025] By adopting the above solution, through the cooperation between the protrusion and the recess, one end of the connecting barrel can be locked between the second mounting block and the second barrel, so that the transportation of the raw materials is more stable.

[0026] In some embodiments, the outer wall of the second barrel assembly is provided with a groove for mounting the second mounting block, and the second mounting block is fixed to the second barrel assembly by screws, thereby improving the installation stability of the second mounting block on the second barrel.

[0027] In some embodiments, it also includes a first driving structure connected to one end of the first barrel assembly; the first driving structure and the intermediate connecting body are respectively connected to the two ends of the first barrel assembly in the axial direction.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the utility model designs a spiral conveying structure of the intermediate connector.

[0030] (1) The utility model is provided with an intermediate connecting body between the first barrel assembly and the second barrel assembly to connect the first barrel assembly and the second barrel assembly; and an anti-carbonization structure is provided in the intermediate connecting body to reduce the flow difference between the inner surface and the central part, reduce the residence time, and can effectively solve the problem of carbonization after the raw material stops. At the same time, it can perform a rotational motion to actively clean the inner surface, thereby ensuring the working effect and efficiency;

[0031] (2) The utility model has a screw driving structure connected to the portion of the connecting screw extending out of the first barrel assembly, which can drive the connecting screw to rotate around its own central axis, making the feeding process smoother, and can more effectively solve the problem of carbonization blockage after the raw material pauses, thereby ensuring work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a structural schematic diagram of the spiral conveying structure of the intermediate connector of the utility model;

[0034] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0035] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0036] Figure 4 This is a schematic structural diagram of another angle of the intermediate connector spiral conveying structure of the utility model;

[0037] Figure 5 for Figure 4 Sectional view at CC;

[0038] Figure 6 for Figure 5 The enlarged schematic diagram at E in the middle;

[0039] Figure 7 for Figure 5 The enlarged schematic diagram at F in the middle;

[0040] Figure 8 for Figure 5 The enlarged schematic diagram of G in the middle;

[0041] Fig. 9 for Figure 4 Sectional view at DD.

[0042] The names of the components corresponding to the reference numerals in the figure are: 100, first barrel assembly; 101, first mounting block; 101a, first cavity; 101b, first mounting groove; 101c, shaft hole; 102, fixing block; 102a, annular groove; 103, first barrel; 103a, first feeding cavity; 103b, feeding port; 104, first feeding screw; 200, second barrel assembly; 201, second mounting block; 201a, second mounting groove; 201b, recessed portion; 202, second cavity; 2 03, groove; 204, second barrel; 204a, second feeding chamber; 204b, injection port; 204c, vacuum chamber; 204d, feeding chamber; 204e, exhaust port; 205, second feeding screw; 300, intermediate connector; 301, connecting barrel; 301a, connecting chamber; 301b, raised portion; 400, anti-carbonization structure; 401, connecting screw; 401a, adapter section; 401b, mounting shaft; 401c, annular protrusion; 401d, free end; 500, first driving structure. DETAILED DESCRIPTION

[0043] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0044] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0046] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0047] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0048] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0049] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0050] like Figure 1-Figure 9As shown, the intermediate connecting body spiral conveying structure provided in this embodiment includes a first barrel assembly 100 and a second barrel assembly 200 that cooperate with each other, the first barrel assembly 100 and the second barrel assembly 200 are horizontally arranged, and the first barrel assembly 100 is relatively arranged above the second barrel assembly 200; wherein, the first barrel assembly 100 and the second barrel assembly 200 are connected by an intermediate connecting body 300 to connect the first barrel assembly 100 and the second barrel assembly 200; and, an anti-carbonization structure 400 is arranged in the intermediate connecting body 300. In some embodiments, the first barrel assembly 100 includes a first barrel 103 arranged horizontally, and the first barrel 103 is provided with a first feeding cavity 103a along its axial direction; a first feeding screw 104 is provided in the first feeding cavity 103a, and the first feeding screw 104 can rotate around its own central axis to transport the raw material toward its front end so that it can enter the intermediate connector 300 and the second barrel assembly 200 in sequence; a discharge port 103b connected to the first feeding cavity 103a is opened at the tail end of the first barrel 103; the second barrel assembly 200 includes a second barrel 204 arranged horizontally, and the second barrel 204 is provided with a second feeding cavity 204a along its axial direction; a second feeding screw 205 is provided in the second feeding cavity 204a; the second material An injection port 204b connected to the second feeding chamber 204a is provided at the front end of the barrel 204, and the second feeding screw 205 can inject molten material into the clamping device through the injection port 204b; the second feeding chamber 204a is located at the two ends connected to the intermediate connecting body 300, and a vacuum chamber 204c and a feeding chamber 204d are respectively formed thereon; the injection port 204b is provided at the end of the feeding chamber 204d away from the vacuum chamber 204c; the tail end of the second barrel 204 is provided with an exhaust port 204e connected to the vacuum chamber 204c; the tail end of the second feeding screw 205 can extend out of the second barrel 204 and be connected to the second driving structure, and the second driving structure can drive the second feeding screw 205 to rotate around its own central axis to inject the molten material into the clamping device. By adopting the above scheme, an intermediate connector 300 is provided between the first barrel assembly 100 and the second barrel assembly 200 to connect the first barrel assembly 100 and the second barrel assembly 200; and an anti-carbonization structure 400 is provided in the intermediate connector 300, which reduces the flow difference between the inner surface and the central part, reduces the residence time, and can effectively solve the problem of carbonization of the raw materials after pause. At the same time, it can perform rotational motion to actively clean the inner surface, thereby ensuring the working effect and efficiency.

[0051] In some embodiments, the intermediate connector 300 includes a connecting barrel 301, and the connecting barrel 301 is provided with a connecting cavity 301a that is arranged vertically; the anti-carbonization structure 400 includes a connecting screw 401 adapted to fit in the connecting cavity 301a; and one end of the connecting barrel 301 is fixedly connected to the first barrel assembly 100, and the other end is fixedly connected to the second barrel assembly 200; one end of the connecting screw 401 is connected to the first barrel assembly 100, and the other end is a free end 401d. In some embodiments, the connecting barrel 301 is arranged vertically relative to the first barrel 103 and the second barrel 204; the connecting screw 401 is also arranged vertically accordingly, so as to more smoothly deliver the raw materials in the first feeding cavity 103a to the second feeding cavity 204a.

[0052] In some embodiments, the first barrel assembly 100 includes a first mounting block 101 for mounting the connecting barrel 301, the first mounting block 101 is provided with a first cavity 101a which is interconnected with the connecting cavity 301a and the first barrel assembly 100, and the first mounting block 101 is located in the first cavity 101a and is provided with a first mounting groove 101b for mounting the connecting barrel 301 at one end thereof close to the connecting barrel 301; the connecting screw 401 includes an adapting section 401a extending out of the connecting barrel 301 and adapted in the first cavity 101a, and the end of the adapting section 401a away from the connecting barrel 301 is formed with an installation shaft 401b installed with the first mounting block 101; the installation shaft 401b is fixedly installed with the first mounting block 101. In some embodiments, the first cavity 101a and the first feeding cavity 103a are coaxially arranged, and the first cavity 101a and the connecting cavity 301a are coaxially arranged. In some embodiments, the front end of the first barrel 103 is open to connect the first feeding cavity 103a and the first cavity 101a; and there is a gap between the front end of the first feeding screw 104 and the adapter section 401a of the connecting screw 401, so that the first feeding screw 104 can smoothly deliver the raw material to the first cavity 101a and the connecting cavity 301a, so that it can enter the second feeding cavity 204a and then be ejected. With the above solution, the first mounting block 101 is fixed to the first barrel 103 by screws, and the connecting screw 401 is fixedly installed by the mounting shaft 401b and the first mounting block 101, so that the connecting screw 401 can be fixedly arranged relative to the first barrel 103 to improve the stability of the connecting screw 401 during operation, and the anti-carbonization effect is better. In some embodiments, the first mounting block 101 is provided with an axial hole 101c for installing the mounting shaft 401b, the mounting shaft 401b partially extends out of the first mounting block 101, and the outer wall portion of the mounting shaft 401b extends radially outward to form an annular protrusion 401c; the annular protrusion 401c abuts against the outer wall of the first mounting block 101; and the outer wall of the first mounting block 101 is connected to a fixing block 102 that can press the annular protrusion 401c onto the first mounting block 101; the fixing block 102 is connected to the first mounting block 101 via screws. With the above solution, the fixing degree of the connecting screw 401 on the first mounting block 101 can be improved by the setting of the annular protrusion 401c; the setting of the fixing block 102 can lock the connecting screw 401 on the first mounting block 101.In some embodiments, the fixing block 102 is provided with an annular groove 102a for adapting to the annular protrusion 401c; and, the annular protrusion 401c and the annular groove 102a are clearance-fitted, and the mounting shaft 401b and the shaft hole 101c are clearance-fitted; thus, the connecting screw 401 can rotate around its own central axis.

[0053] In some embodiments, the second barrel assembly 200 includes a second mounting block 201 for mounting the connecting barrel 301; a second mounting groove 201a for fitting the connecting barrel 301 is provided in the second mounting block 201, so that the end of the connecting barrel 301 abuts against the outer wall of the second barrel assembly 200; and the second barrel assembly 200 is provided with a second cavity 202 for connecting the connecting cavity 301a and the second barrel assembly 200, and the free end 401d of the connecting screw 401 can extend out of the connecting barrel 301 and fit in the second cavity 202. In some embodiments, the second cavity 202 is located below the connecting cavity 301a and is coaxially arranged. By adopting the above scheme, the first cavity 101a is connected with the first feeding cavity 103a, and after the connecting barrel 301 is assembled to the first mounting groove 101b, the first cavity 101a, the first feeding cavity 103a and the connecting cavity 301a can be connected; and the connecting cavity 301a, the second cavity 202 and the second feeding cavity 204a are connected, and after the connecting barrel 301 is assembled to the second mounting groove 201a, the first feeding cavity 103a, the first cavity 101a, the connecting cavity 301a, the second cavity 202 and the second feeding cavity 204a can be connected to realize the transportation of raw materials. In some embodiments, the part of the connecting barrel 301 close to the second barrel assembly 200 is radially outwardly protruding to form a protrusion 301b, and the part of the second mounting groove 201a close to the second barrel assembly 200 is concave to form a concave portion 201b adapted to the protrusion 301b. By adopting the above solution, through the cooperation of the protrusion 301b and the recessed portion 201b, one end of the connecting barrel 301 can be locked between the second mounting block 201 and the second barrel 204, so that the transportation of the raw material is more stable. In some embodiments, the outer wall of the second barrel assembly 200 is provided with a groove 203 for mounting the second mounting block 201, and the second mounting block 201 is fixed to the second barrel assembly 200 by screws, which improves the installation stability of the second mounting block 201 on the second barrel 204.

[0054] In some embodiments, a first driving structure 500 connected to one end of the first barrel assembly 100 is further included; the first driving structure 500 and the intermediate connecting body 300 are respectively connected to two ends of the first barrel assembly 100 in the axial direction.

[0055] In a preferred embodiment, the end of the connecting screw 401 connected to the first barrel assembly 100 partially extends out of the first barrel assembly 100; and the portion of the connecting screw 401 extending out of the first barrel assembly 100 is connected to a screw driving structure, which can drive the connecting screw 401 to rotate around its own central axis. With the above solution, the setting of the screw driving structure can drive the connecting screw 401 to rotate around its own central axis, making the feeding process smoother, and can more effectively solve the problem of carbonization blockage after the raw material pauses, thereby ensuring work efficiency.

[0056] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0057] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. The intermediate connector spiral conveying structure is characterized by: The invention comprises a first barrel assembly (100) and a second barrel assembly (200) which cooperate with each other, wherein the first barrel assembly (100) and the second barrel assembly (200) are arranged horizontally, and the first barrel assembly (100) is arranged relatively above the second barrel assembly (200); wherein the first barrel assembly (100) and the second barrel assembly (200) are connected by an intermediate connecting body (300) to connect the first barrel assembly (100) and the second barrel assembly (200); and an anti-carbonization structure (400) is arranged in the intermediate connecting body (300).

2. The intermediate connecting body spiral conveying structure according to claim 1 is characterized in that: The intermediate connector (300) includes a connecting barrel (301), and the connecting barrel (301) is provided with a connecting cavity (301a) which is arranged to pass through from top to bottom; the anti-carbonization structure (400) includes a connecting screw (401) adapted to be inside the connecting cavity (301a); and one end of the connecting barrel (301) is fixedly connected to the first barrel assembly (100), and the other end is fixedly connected to the second barrel assembly (200); one end of the connecting screw (401) is connected to the first barrel assembly (100), and the other end is a free end (401d).

3. The intermediate connecting body spiral conveying structure according to claim 2 is characterized in that: One end portion of the connecting screw (401) connected to the first barrel assembly (100) extends out of the first barrel assembly (100); and a screw driving structure is connected to the portion of the connecting screw (401) extending out of the first barrel assembly (100), and the screw driving structure can drive the connecting screw (401) to rotate around its own central axis.

4. The intermediate connecting body spiral conveying structure according to claim 2 is characterized in that: The first barrel assembly (100) comprises a first mounting block (101) for mounting the connecting barrel (301), a first cavity (101a) being interconnected with the connecting cavity (301a) and the first barrel assembly (100) being arranged in the first mounting block (101), and a first mounting groove (101b) for mounting the connecting barrel (301) being arranged at one end of the first cavity (101a) close to the connecting barrel (301); the connecting screw (401) comprises an adapting section (401a) extending out of the connecting barrel (301) and adapted in the first cavity (101a), and a mounting shaft (401b) being mounted on the first mounting block (101) is formed at one end of the adapting section (401a) away from the connecting barrel (301); the mounting shaft (401b) and the first mounting block (101) are fixedly mounted.

5. The intermediate connecting body spiral conveying structure according to claim 4 is characterized in that: The first mounting block (101) is provided with an axial hole (101c) for mounting the mounting shaft (401b); the mounting shaft (401b) partially protrudes out of the first mounting block (101), and the outer wall portion of the mounting shaft (401b) extends radially outward to form an annular protrusion (401c); the annular protrusion (401c) abuts against the outer wall of the first mounting block (101); and the outer wall of the first mounting block (101) is connected to a fixing block (102) capable of pressing the annular protrusion (401c) onto the first mounting block (101); the fixing block (102) is connected to the first mounting block (101) by screws.

6. The intermediate connecting body spiral conveying structure according to claim 5, characterized in that: The fixing block (102) is provided with an annular groove (102a) for adapting to the annular protrusion (401c); and the annular protrusion (401c) and the annular groove (102a) are clearance-matched, and the mounting shaft (401b) and the shaft hole (101c) are clearance-matched.

7. The intermediate connecting body spiral conveying structure according to claim 2, characterized in that: The second barrel assembly (200) includes a second mounting block (201) for mounting the connecting barrel (301); a second mounting groove (201a) for adapting the connecting barrel (301) is provided in the second mounting block (201), so that the end of the connecting barrel (301) abuts against the outer wall of the second barrel assembly (200); and the second barrel assembly (200) is provided with a second cavity (202) for connecting the connecting cavity (301a) and the second barrel assembly (200), and the free end (401d) of the connecting screw (401) can extend out of the connecting barrel (301) and adapt to the second cavity (202).

8. The intermediate connecting body spiral conveying structure according to claim 7, characterized in that: The portion of the connecting barrel (301) close to the second barrel assembly (200) is radially outwardly protruding to form a protrusion (301b), and the portion of the second mounting groove (201a) close to the second barrel assembly (200) is recessed to form a recess (201b) adapted to the protrusion (301b).

9. The intermediate connecting body spiral conveying structure according to claim 7, characterized in that: The outer wall of the second barrel assembly (200) is provided with a groove (203) for mounting the second mounting block (201), and the second mounting block (201) is fixed to the second barrel assembly (200) by means of screws.

10. The intermediate connecting body spiral conveying structure according to claim 1, characterized in that: It also includes a first driving structure (500) connected to one end of the first barrel assembly (100); the first driving structure (500) and the intermediate connecting body (300) are respectively connected to the two ends of the first barrel assembly (100) in the axial direction.

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